ATOMIZATION CORE OF E-CIGARETTE AND E-CIGARETTE

Abstract

The present disclosure discloses an atomization core of an e-cigarette and an e-cigarette. The atomization core of the e-cigarette includes a porous body and a strip-shaped heating body. The porous body has a liquid absorption end and an atomization end, the atomization end has a first end surface that is away from the liquid absorption end, and the strip-shaped heating body is arranged on the first end surface. The first end surface has a first edge and a second edge that extend along a first direction and are spaced along a second direction, and a maximum distance between the first edge and the second edge in the second direction is a first dimension. The first end surface has a third edge and a fourth edge that extend along the second direction and are spaced along the first direction.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of International Application No. PCT/CN2022/095407, filed on May 27, 2022, which claims priority to Chinese patent application Ser. No. 202111228081.7, filed on Oct. 21, 2021 and entitled “ATOMIZATION CORE OF E-CIGARETTE AND E-CIGARETTE”, both of which are incorporated herein by reference in its entirety.

FIELD

The present disclosure relates to the field of e-cigarette technologies, and more specifically, to an atomization core of an e-cigarette and an e-cigarette.

BACKGROUND

In recent years, with people's living standards gradually improve, more attentions are paid to physical health, and more and more people begin to realize harms of tobacco to their bodies. As a result, users of e-cigarettes increase rapidly. An e-cigarette is an electronic product that mimics a cigarette and has a similar appearance, vapor, taste, and feel to the cigarette. An e-cigarette product atomizes e-liquids to provide a user with inhalable vapor. Compared to a real cigarette product, the e-cigarette has advantages of significantly reducing health hazards to the user. In addition, most e-cigarettes are easy to operate, exquisite in appearance, and easy to carry.

An existing e-cigarette structure has a large size and is inconvenient for the user to hold and carry. Therefore, how to adapt to a development trend of miniaturization of the e-cigarette is an urgent problem to be resolved.

SUMMARY

One purpose of the present disclosure is to provide a new technical solution for an atomization core of an e-cigarette and an e-cigarette.

According to a first aspect of the present disclosure, an atomization core of an e-cigarette is provided. The atomization core of the e-cigarette includes:

• • a porous body and a strip-shaped heating body.

The porous body has a liquid absorption end and an atomization end, the atomization end has a first end surface that is away from the liquid absorption end, and the strip-shaped heating body is arranged on the first end surface.

The first end surface has a first edge and a second edge that extend along a first direction and are spaced along a second direction, and a maximum distance between the first edge and the second edge in the second direction is a first dimension; and

• • the first end surface has a third edge and a fourth edge that extend along the second direction and are spaced along the first direction, and a maximum distance between the third edge and the fourth edge in the first direction is a second dimension; where a ratio of the second dimension to the first dimension is greater than or equal to 2, and the first dimension ranges from 1.2 mm to 3.8 mm.

According to an embodiment of the present disclosure, the second dimension ranges from 6.5 mm to 15 mm.

According to an embodiment of the present disclosure, the first end surface is an atomization surface, the liquid absorption end has a third end surface that is away from the atomization end, and the third end surface is a liquid absorption surface.

According to an embodiment of the present disclosure, a bump is arranged on the atomization end. The bump has a second end surface that is away from the liquid absorption end and a side surface that is located on an outer periphery of the bump. The second end surface is an atomization surface, or the second end surface and the side surface are atomization surfaces. The liquid absorption end has a third end surface that is away from the atomization end, and the third end surface is a liquid absorption surface.

According to an embodiment of the present disclosure, the liquid absorption surface has a seventh edge and an eighth edge that extend along the second direction and are spaced along the first direction, a maximum distance between the seventh edge and the eighth edge along the first direction is a third dimension, and the third dimension is greater than the second dimension.

According to an embodiment of the present disclosure, the liquid absorption surface has a fifth edge and a sixth edge that extend along the first direction and are spaced along the second direction, a maximum distance between the fifth edge and the sixth edge in the second direction is a fourth dimension, and the fourth dimension is the same as the first dimension.

According to an embodiment of the present disclosure, the third dimension ranges from 7.5 mm to 22 mm.

According to an embodiment of the present disclosure, the atomization surface is rectangular, elliptical, or runway-shaped.

According to an embodiment of the present disclosure, the liquid absorption surface is rectangular, elliptical, or runway-shaped.

According to an embodiment of the present disclosure, the strip-shaped heating body extends in a curve on the first end surface. The heating body has two heating sections that extend along the second direction and are adjacently arranged along the first direction, a minimum distance between the two heating sections in the first direction is a fifth dimension, and the fifth dimension ranges from 0.2 mm to 2 mm.

According to an embodiment of the present disclosure, the two heating sections are connected by a bending section, and the bending section is bent towards the first edge or the bending section is bent towards the second edge.

According to an embodiment of the present disclosure, the bending section is bent towards the first edge, and a shortest distance between the bending section and the second edge in the second direction ranges from 0.05 mm to 2 mm.

According to an embodiment of the present disclosure, the bending section is bent towards the second edge, and a shortest distance between the bending section and the first edge in the second direction ranges from 0.05 mm to 2 mm.

According to an embodiment of the present disclosure, the strip-shaped heating body has a head end heating section and a tail end heating section, and at least one of the head end heating section and the tail end heating section extends along the first direction.

According to an embodiment of the present disclosure, the head end heating section extends along the first direction, and a shortest distance between the head end heating section and the first edge or the second edge in the second direction ranges from 0.05 mm to 2 mm.

According to an embodiment of the present disclosure, the tail end heating section extends along the first direction, and a shortest distance between the tail end heating section and the first edge or the second edge in the second direction ranges from 0.05 mm to 2 mm.

According to an embodiment of the present disclosure, the head end heating section and a heating section connected thereto are connected by an arc-shaped fragment, and a curvature radius of the arc-shaped fragment is greater than 0.2.

According to an embodiment of the present disclosure, a total length of the strip-shaped heating body ranges from 7 mm to 30 mm.

According to an embodiment of the present disclosure, a total length of the strip-shaped heating body ranges from 25 mm to 30 mm.

According to an embodiment of the present disclosure, a width of the strip-shaped heating body ranges from 0.05 mm to 2.3 mm.

According to an embodiment of the present disclosure, a ratio of an area of the atomization surface to an area of the strip-shaped heating body is less than 6.

According to an embodiment of the present disclosure, a first patch board and a second patch board are arranged on the atomization surface. The liquid absorption surface and the atomization surface are arranged opposite to each other. An extension direction from the liquid absorption surface to the atomization surface is a third direction. The first patch board has a first central axis in the third direction, the second patch board has a second central axis in the third direction, and a distance between the first central axis and the second central axis ranges from 1.2 mm to 14 mm.

According to an embodiment of the present disclosure, the first patch board has a first side surface that is close to the third edge, and a shortest distance between the first side surface and the third edge in the first direction ranges from 0.15 mm to 1 mm.

According to an embodiment of the present disclosure, the second patch board has a second side surface that is close to the fourth edge, and a shortest distance between the second side surface and the fourth edge in the first direction ranges from 0.15 mm to 1 mm.

According to an embodiment of the present disclosure, a maximum dimension of the first patch board in the first direction ranges from 0.6 mm to 1 mm, or a maximum dimension of the second patch board in the first direction ranges from 0.6 mm to 1 mm, or a maximum dimension of each of the first patch board and the second patch board in the first direction ranges from 0.6 mm to 1 mm.

According to an embodiment of the present disclosure, the strip-shaped heating body has a first heating section that is close to the first patch board, and the first heating section extends along the second direction;

• • the first patch board has a third side surface that is close to the strip-shaped heating body in the first direction; and
  • a shortest distance between the first heating section and the third side surface ranges from 0.3 mm to 1.5 mm.

According to an embodiment of the present disclosure, the strip-shaped heating body has a second heating section that is close to the second patch board, and the second heating section extends along the second direction; the second patch board has a fourth side surface that is close to the strip-shaped heating body in the first direction; and

• • a shortest distance between the second heating section and the fourth side surface ranges from 0.3 mm to 1.5 mm.

According to an embodiment of the present disclosure, along the extension direction from the liquid absorption surface to the atomization surface, the atomization surface has a third central axis;

• • the first central axis offsets towards the second edge of the porous body by a first predetermined distance relative to the third central axis; and
  • the second central axis offsets towards the first edge of the porous body by a second predetermined distance relative to the third central axis.

According to an embodiment of the present disclosure, a ratio of the first predetermined distance to the first dimension ranges from 1/5 to 1/3; or a ratio of the second predetermined distance to the second dimension ranges from 1/5 to 1/3; or a ratio of the first predetermined distance to the first dimension both and a ratio of the second predetermined distance to the first dimension both range from 1/5 to 1/3.

According to an embodiment of the present disclosure, the strip-shaped heating body includes the head end heating section, one end of the head end heating section is connected to the first patch board, and the head end heating section extends from the first patch board towards the first edge of the porous body; and

• • the strip-shaped heating body includes the tail end heating section, one end of the tail end heating section is connected to the second patch board, and the tail end heating section extends from the second patch board towards the second edge of the porous body.

According to an embodiment of the present disclosure, the strip-shaped heating body includes a first side heating section, an intermediate heating section, and a second side heating section. The first side heating section, the intermediate heating section, and the second side heating section extend along the second direction and are adjacently arranged in the first direction, and the intermediate heating section is located between the first side heating section and the second side heating section; and

• • the first side heating section, the intermediate heating section, and the second side heating section are connected by two bending sections with reverse bending directions, and the two bending sections tilt towards each other in the first direction.

According to an embodiment of the present disclosure, a width of the intermediate heating section is greater than a width of the first side heating section or a width of the second side heating section.

According to an embodiment of the present disclosure, the strip-shaped heating body is a centrosymmetric body.

According to a second aspect of the present disclosure, an e-cigarette is provided. The e-cigarette includes the atomization core of the e-cigarette provided in the first aspect.

One technical effect of the present disclosure is to provide an atomization core of an e-cigarette. A first end surface of the atomization core has a second dimension in a first direction and a first dimension in a second direction. A ratio of the second dimension on the first end surface to the first dimension on the first end surface is greater than or equal to 2, and the first dimension ranges from 1.2 mm to 3.8 mm. In the present disclosure, the ratio of the first dimension to the second dimension on the first end surface and a range of the first dimension are limited, so that a width dimension of the atomization core of the e-cigarette in the second direction is narrower. By applying the atomization core of the e-cigarette to an e-cigarette, a structure of the e-cigarette is more compact, making it easier for a user to carry and hold.

According to the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings, other features and advantages of the present disclosure become clear.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings that are incorporated in the specification and form a part of the specification illustrate embodiments of the present disclosure, and are used together with the description thereof to explain principles of the present disclosure.

FIG. 1 is a first schematic diagram of a structure of an atomization core of an e-cigarette according to an embodiment of the present disclosure;

FIG. 2 a schematic structural diagram of a structure from one perspective of FIG. 1;

FIG. 3 is a second schematic diagram of a structure of an atomization core of an e-cigarette according to an embodiment of the present disclosure;

FIG. 4 a schematic diagram of a structure from one perspective of FIG. 3;

FIG. 5 is a third schematic diagram of a structure of an atomization core of an e-cigarette according to an embodiment of the present disclosure;

FIG. 6 a schematic diagram of a structure from one perspective of FIG. 5;

FIG. 7 is a fourth schematic diagram of a structure of an atomization core of an e-cigarette according to an embodiment of the present disclosure; and

FIG. 8 is a schematic diagram of a structure from one perspective of FIG. 7.

DETAILED DESCRIPTION

Various exemplary embodiments of the present disclosure are now described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specified, relative arrangement, numerical expressions, and values of components and steps described in the embodiments do not limit the scope of the present disclosure.

The following description of at least one exemplary embodiment is actually merely for an illustrative purpose and do not constitute any limitation on the present disclosure and application or use thereof.

The techniques, methods, and devices known to a person of ordinary skill in the related art may not be discussed in detail, but in an appropriate case, the techniques, methods, and devices should be considered as a part of the specification.

In each of the examples shown and discussed herein, any specific value should be interpreted as merely illustrative and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

It should be noted that, similar reference signs and letters represent similar items in the following accompanying drawings. Therefore, once an item is defined in one accompanying drawing, the item does not need to be further discussed in subsequent accompanying drawings.

In order to improve temperature distribution of an atomization core, currently, an area of the atomization core is often increased, and especially, an area of an atomization surface of the atomization core is increased to improve an atomization effect and increase a vapor amount.

However, in this way, a structural size of an e-cigarette is relatively large, making it inconvenient for a user to carry and hold. Currently, a width dimension of the atomization core of the e-cigarette is generally 5 mm, and the width of the atomization core is even wider. In this case, a housing structure of the e-cigarette is also increased accordingly. Therefore, the structure of the e-cigarette in the related art is contrary to a development trend of miniaturization of the e-cigarette.

Based on this, the applicant has made the following inventions and creations through long-term creative labor.

According to a first aspect of the embodiments of the present disclosure, an atomization core of an e-cigarette is provided. Referring to FIG. 1 to FIG. 8, the atomization core of the e-cigarette includes:

• • a porous body 10 and a strip-shaped heating body 40.

The porous body 10 has a liquid absorption end and an atomization end, the atomization end has a first end surface that is away from the liquid absorption end, and the strip-shaped heating body 40 is arranged on the first end surface.

The first end surface has a first edge 11 and a second edge 12 that extend along a first direction and are spaced along a second direction, and a distance between the first edge 11 and the second edge 12 in the second direction is a first dimension h1.

The first end surface has a third edge 13 and a fourth edge 14 that extend along the second direction and are spaced along the first direction, a distance between the third edge 13 and the fourth edge 14 in the first direction is a second dimension h2.

A ratio of the second dimension h2 to the first dimension h1 is greater than or equal to 2, and the first dimension h1 ranges from 1.2 mm to 3.8 mm.

In other words, according to the embodiments of the present disclosure, the atomization core of the e-cigarette mainly includes the porous body 10 that can play a supporting role, and the strip-shaped heating body 40 that can generate heat after being powered on.

Referring to FIG. 1 to FIG. 8, the porous body 10 has a liquid absorption end and an atomization end, e-liquid inside the e-cigarette seep to the atomization end through the liquid absorption end; and the atomization end has a first end surface that is away from the liquid absorption end, and the strip-shaped heating body 40 is arranged on the first end surface of the atomization end. In this embodiment, the first end surface is an atomization surface 101 of the porous body 10.

The first end surface has the first edge 11 and the second edge 12 that extend along the first direction, and the first edge 11 and the second edge 12 are spaced in the second direction. For example, as shown in FIG. 1 and FIG. 2, the first direction may be defined as a left-right direction, and the second direction may be defined as an up-down direction. Certainly, the first direction is not limited to the left-right direction, and the second direction is not limited to the up-down direction, which are not limited herein. The first edge 11 and the second edge 12 extend along the left-right direction respectively, and are spaced in the up-down direction. A region between the first edge 11 and the second edge 12 may serve as a load mounting region. For example, the strip-shaped heating body 40 is arranged on the mounting region. It should be noted that the porous body 10 may be a ceramic porous ceramic substrate or another porous ceramic substrate, which is not limited herein.

The distance between the first edge 11 and the second edge 12 in the second direction is the first dimension h1, and a range of the first dimension h1 is a range of a maximum distance between the first edge 11 and the second edge 12. For example, the first edge 11 and the second edge 12 may be straight edges or spline curved edges.

The first end surface has the third edge 13 and the fourth edge 14 that extend along the second direction, and the third edge 13 and the fourth edge 14 are spaced in the first direction. For example, as shown in FIG. 1 and FIG. 2, the first direction may be defined as a left-right direction, and the second direction may be defined as an up-down direction. Certainly, the first direction is not limited to the left-right direction, and the second direction is not limited to the up-down direction, which are not limited herein. The third edge 13 and the fourth edge 14 extend along the up-down direction respectively, and are spaced in the left-right direction. A region between the third edge 13 and the fourth edge 14 may serve as a load mounting region. For example, the strip-shaped heating body 40 is arranged on the mounting region.

The distance between the third edge 13 and the fourth edge 14 in the first direction is the second dimension h2, and a range of the second dimension h2 is a range of a maximum distance between the third edge 13 and the fourth edge 14. For example, the third edge 13 and the fourth edge 14 may be straight edges or spline curved edges.

In the embodiments of the present disclosure, a ratio of the second dimension h2 to the first dimension h1 (that is, a quotient of the second dimension h2 divided by the first dimension h1) is greater than or equal to 2, and the first dimension h1 ranges from 1.2 mm to 3.8 mm. Specifically, the ratio of the second dimension h2 to the first dimension h1 is greater than or equal to 2, and the first dimension h1 is limited to range from 1.2 mm to 3.8 mm, so that a width dimension of the atomization core in the second direction is narrower. For example, the first dimension h1 is a width dimension of the first end surface, and the second dimension h2 is a length dimension of the first end surface. In addition, a process level of the atomization core (for example, parameters such as a porosity and a pore size of the atomization core), an e-liquid transfer speed of the atomization core, and a thermal conductivity of the atomization core (minor optimization) affects an atomization effect of the first end surface. On the premise of not affecting an overall atomization effect of the atomization core, in the embodiments of the present disclosure, the width dimension of the atomization core in the second direction (that is, the first dimension h1) is designed to be narrower, which is suitable for use in a small e-cigarette. For example, the first dimension h1 is 2 mm, 2.8 mm, or 3.8 mm.

In an embodiment, referring to FIG. 1 to FIG. 8, the second dimension h2 ranges from 6.5 mm to 15 mm.

Specifically, in this embodiment, the second dimension h2 of the first end surface in the first direction is limited. That is, the length dimension of the first end surface in the first direction is limited. A product of the length dimension of the first end surface in the first direction and the width dimension of the first end surface in the second direction is an area of the first end surface. The strip-shaped heating body 40 is arranged on the first end surface, and by limiting the area of the first end surface within this range, a structure of the atomization core in this embodiment is more compact while a length setting requirement on the strip-shaped heating body 40 is met.

In an embodiment, referring to FIG. 1, the first end surface is the atomization surface 101, the liquid absorption end has a third end surface that is away from the atomization end, and the third end surface is a liquid absorption surface 102.

In this embodiment, for example, the porous body has an ellipsoidal structure. The first end surface is the atomization surface 101, and the third end surface is the liquid aspiration surface. E-liquid inside the e-cigarette may seep to the atomization surface 101 through the liquid absorption surface, and the atomization surface 101 is configured to atomize the e-liquid.

In an embodiment, a bump is arranged on the atomization end, the bump has a second end surface that is away from the liquid absorption end and a side surface that is located on an outer periphery of the bump, the second end surface is the atomization surface 101, or the second end surface and the side surface are the atomization surfaces 101, the liquid absorption end has a third end surface that is away from the atomization end, and the third end surface is the liquid absorption surface 102.

In this embodiment, the strip-shaped heating body 40 is arranged on the second end surface, that is, the strip-shaped heating body 40 is arranged on one side of the bump that is away from the liquid absorption end. Alternatively, the strip-shaped heating body 40 is arranged on the second end surface and the side surface, so that the second end surface and the side surface both form the atomization surface 101. Therefore, an end surface and the side surface of the bump may be fully utilized to avoid setting an atomization surface 101 with an excessively large area on the end surface of the bump. Therefore, when the atomization surface 101 formed by the bump is fully utilized, on the basis of increasing a heating rate of the strip-shaped heating body 40, an effective atomization area 101 of the atomization surface 101 may be ensured, thereby improving the heating efficiency of the heating body and an atomization amount of the atomization core of the e-cigarette.

In an embodiment, the liquid absorption surface 102 has a seventh edge 17 and an eighth edge 18 that extend along the second direction and are spaced along the first direction, a maximum distance between the seventh edge 17 and the eighth edge 18 in the first direction is a third dimension h3, and the third dimension h3 is greater than the second dimension h2.

In an embodiment, the liquid absorption surface 102 has a fifth edge 15 and a sixth edge 16 that extend along the first direction and are spaced along the second direction, a maximum distance between the fifth edge 15 and the sixth edge 16 in the second direction is a fourth dimension h4, and the fourth dimension h4 is the same as the first dimension h1.

Specifically, the liquid absorption surface 102 has the seventh edge 17 and the eighth edge 18 that extend along the second direction and are spaced along the first direction, the maximum distance between the seventh edge 17 and the eighth edge 18 in the first direction is the third dimension h3, and the seventh edge 17 and the eighth edge 18 may be straight edges or spline curved edges. In this embodiment, the third dimension h3 between the seventh edge 17 and the eighth edge 18 in the first direction is greater than the second dimension h2 between the third edge 13 and the fourth edge 14 in the first direction; that is, a length dimension of the liquid absorption surface 102 in the first direction is greater than the length dimension of the atomization surface 101 in the first direction.

The liquid absorption surface 102 has the fifth edge 15 and the sixth edge 16 that extend along the first direction and are spaced along the second direction, and the maximum distance between the fifth edge 15 and the sixth edge 16 in the second direction is the fourth dimension h4. In this embodiment, the fourth dimension h4 between the fifth edge 15 and the sixth edge 16 in the second direction is the same as the first dimension h1 between the first edge 11 and the second edge 12 in the second direction. That is, a width dimension of the liquid absorption surface 102 in the second direction is consistent with the width dimension of the atomization surface 101 in the second direction. In this embodiment, by limiting the width dimension of the liquid absorption surface 102 in the second direction, an overall width dimension of the atomization core in the second direction is further limited to range from 1.2 mm to 3.8 mm. Compared to the related art, a width of the atomization core in the second direction in this embodiment is narrower.

In this embodiment, a length of the liquid absorption surface 102 in the first direction is greater than a length of the atomization surface 101 in the first direction, that is, an area of the liquid absorption surface 102 is greater than the area of the atomization surface 101. Therefore, the liquid absorption surface 102 can absorb a larger amount of e-liquid from a liquid storage cavity of the e-cigarette, and the larger amount of e-liquid is atomized by the atomization surface 101, which can improve an overall atomization amount of the e-cigarette.

In an embodiment, referring to FIG. 1 to FIG. 8, the third dimension h3 ranges from 7.5 mm to 22 mm. For example, the third dimension h3 may be 8 mm, 9 mm, 15 mm, or 20 mm.

Specifically, in this embodiment, the third dimension h3 of the liquid absorption surface 102 in the first direction is limited. That is, the length dimension of the liquid aspiration surface 102 in the first direction is limited. That is, a length dimension of the atomization core in the first direction is limited. A product of the length dimension of the liquid absorption surface 102 in the first direction and the width dimension of the liquid absorption surface 102 in the second direction is the area of the liquid absorption surface 102. The liquid absorption surface 102 absorbs e-liquid in a liquid storage cavity of an e-cigarette. Therefore, by limiting the area of the liquid aspiration surface 102 within this range, a requirement for an atomization amount of the e-cigarettes is met while liquid leakage caused by excessive e-liquid absorbed by the atomization core is avoided.

In an embodiment, referring to FIG. 1 to FIG. 8, the atomization surface 101 is rectangular, elliptical, or runway-shaped.

In another embodiment of the present disclosure, the liquid absorption surface 102 is also rectangular, elliptical, or runway-shaped.

Specifically, referring to FIG. 1 and FIG. 2 and referring to FIG. 7 and FIG. 8, the atomization surface 101 is a rectangle, and the liquid absorption surface 102 is an ellipse. A long side of the rectangle corresponds to the second dimension h2 of the atomization surface 101, and a short side of the rectangle corresponds to the first dimension h1 of the atomization surface 101; and a long axis of the ellipse corresponds to the third dimension h3 of the liquid absorption surface 102, and a short axis of the ellipse corresponds to the fourth dimension h4 of the liquid absorption surface 102.

Referring to FIG. 3 to FIG. 6, the atomization surface 101 is a rectangle, and the liquid absorption surface 102 is a rectangle. A long side of the former rectangle corresponds to the second dimension h2 of the atomization surface 101, and a short side of the former rectangle corresponds to the first dimension h1 of the atomization surface 101; and a long side of the latter rectangle corresponds to the third dimension h3 of the liquid absorption surface 102, and a short side of the rectangle corresponds to the fourth dimension h4 of the liquid absorption surface 102.

It should be noted that, in this embodiment, structures of the atomization surface 101 and the liquid absorption surface 102 are not limited, provided that the atomization surface 101 and the liquid absorption surface 102 are long flat structures.

In the related art, a strip-shaped heating body is arranged on the atomization core, and the strip-shaped heating body is configured to heat e-liquid that is transmitted through the atomization core to generate an aerosol. In order to improve temperature distribution of the atomization core and make the temperature distribution more even, currently, an area of the atomization core is often increased, and especially, an area of the atomization surface 101 of the atomization core is increased, to improve an atomization effect and increase a vapor amount. For example, the area of the atomization core may be designed to be twice that of a common ceramic core, to improve the temperature distribution of the atomization core and make the temperature distribution more even. However, this completely goes against a design concept of miniaturization of an e-cigarette.

Because in order to adapt to the development trend of miniaturization of the e-cigarette, a structure of the atomization core is a narrower atomization core. For example, in the embodiments of the present disclosure, the width dimension of the atomization core in the second direction ranges from 1.2 mm to 3.8 mm. The width dimension of the atomization core becomes narrower, making it more difficult to arrange a heating wire on a relatively narrow atomization core. Therefore, it is difficult to ensure a length of the heating wire arranged on the narrower atomization core, leading to a high temperature of the heating wire and uneven temperature distribution of the atomization core. Therefore, how to arrange a heating wire on a relatively narrow atomization core is an urgent technical problem to be resolved. In addition, how to arrange a heating wire on a relatively narrow atomization core to make the temperature distribution of the atomization core even is also an urgent technical problem to be resolved.

In the embodiments of the present disclosure, the strip-shaped heating body 40 is arranged on the atomization core of the e-cigarette. Specifically, in an embodiment, the strip-shaped heating body extends in a curve on the first end surface. On the atomization surface 101, the strip-shaped heating body 40 has two heating sections 403 that extend along the second direction and are adjacently arranged along the first direction, a minimum distance between the two heating sections 403 in the first direction is a fifth dimension h5, and the fifth dimension h5 ranges from 0.2 mm to 2 mm. The fifth dimension h5 is 0.5 mm, 1 mm, or 1.5 mm.

Specifically, the strip-shaped heating body 40 is arranged on the atomization surface 101, a left end of the strip-shaped heating body 40 is electrically connected to a first patch board 20 that corresponds to a positive electrode, and a right end of the strip-shaped heating body 40 is electrically connected to a second patch board 30 that corresponds to a negative electrode. It should be noted that, the left end of the strip-shaped heating body 40 may alternatively be electrically connected to the second patch board 30 that corresponds to the negative electrode, and the right end of the strip-shaped heating body 40 may be electrically connected to the first patch board 20 that corresponds to the positive electrode. This is not limited herein.

When the positive electrode and negative electrode are powered on, a current may flow out from the positive electrode, pass through the first patch board 20 that surrounds the positive electrode, and flow to the left end of the strip-shaped heating body 40. Then, the current flows from the left end of the strip-shaped heating body 40 to the right end of the strip-shaped heating body 40. Finally, the current flows through the second patch board 30 that surrounds the negative electrode and flows to the negative electrode, forming a complete path and making the strip-shaped heating body 40 to generate heat.

Specifically, in this embodiment, by limiting a distance between the two adjacent heating sections 403, the temperature distribution of the atomization core is improved. For example, in a case that a length dimension of the atomization surface 101 is fixed, a smaller distance dimension between adjacent heating sections 403 in the first direction indicates more heating sections 403 of the strip-shaped heating body 40 that are arranged in the first direction, so that the temperature distribution of the atomization core is improved and the temperature distribution is more even. However, a smaller dimension of adjacent heating sections 403 in the first direction indicates that heat generated by the adjacent heating sections 403 inevitably affects each other and causes a heat concentration point.

For example, in a concentrated distribution region of heating sections 403, a distance between adjacent heating sections 403 is relatively small, a heat concentration point may be easily formed in this region. As a result, heat generated by the strip-shaped heating body 40 is unevenly distributed on the porous body 10, and service lives of the strip-shaped heating body 40 and the porous body 10 are affected.

If a distance between adjacent heating sections 403 in the first direction is relatively large, arrangement of the strip-shaped heating body 40 in the first direction is more dispersed, and the heat generated by the strip-shaped heating body 40 may also be unevenly distributed.

Therefore, it is crucial to limit the distance between the heating sections 403 that are adjacently arranged in the first direction. The applicant finds that limiting the distance between the adjacent heating sections 403 in the first direction within this range makes the heat distribution generated by the strip-shaped heating body 40 more even, improving the heated evenness of e-liquid.

Referring to FIG. 1 to FIG. 2, the strip-shaped heating body 40 has three heating sections 403 in the first direction, and each of the three heating sections 403 extends along the second direction. A minimum distance between two heating sections 403 in the first direction ranges from 0.2 mm to 2 mm, where the two heating sections 403 are adjacent to each other in the first direction.

Referring to FIG. 3 to FIG. 4, the strip-shaped heating body 40 has four heating sections 403 in the first direction, and each of the four heating sections 403 extends along the second direction. A minimum distance between two heating sections 403 in the first direction ranges from 0.2 mm to 2 mm, where the two heating sections 403 are adjacent to each other in the first direction.

Referring to FIG. 5 to FIG. 6, the strip-shaped heating body 40 has five heating sections 403 in the first direction, and each of the five heating sections 403 extends along the second direction. A minimum distance between two heating sections 403 in the first direction ranges from 0.2 mm to 2 mm, where the two heating sections 403 are adjacent to each other in the first direction.

Referring to FIG. 7 to FIG. 8, the strip-shaped heating body 40 has three heating sections 403 that extend along the second direction in the first direction. A minimum distance between two heating sections 403 in the first direction ranges from 0.2 mm to 2 mm, where the two heating sections 403 are adjacent to each other in the first direction.

In an embodiment, referring to FIG. 1 to FIG. 8, the two heating sections 403 are connected by a bending section 404, and the bending section 404 is bent towards the first edge 11 or the bending section 404 is bent towards the second edge 12.

In an embodiment, the bending section 404 is bent towards the first edge 11, and a shortest distance between the bending section 404 and the second edge 12 in the second direction ranges from 0.05 mm to 2 mm. For example, the shortest distance may be 0.1 mm, 0.5 mm, or 1.5 mm.

In an embodiment, the bending section 404 is bent towards the second edge 12, and a shortest distance between the bending section 404 and the first edge 11 in the second direction ranges from 0.05 mm to 2 mm.

Specifically, the heating sections 403 that are adjacently arranged in the first direction each have a first end and a second end. Ends on a same side of the two heating sections 403 that are adjacently arranged in the first direction are connected by the bending section 404.

Referring to FIG. 3 to FIG. 4, from left to right, the strip-shaped heating body 40 includes a first heating section, a second heating section, a third heating section, and a fourth heating section. The first heating section and the second heating section are connected by one bending section 404, the second heating section and the third heating section are connected by one bending section 404, and the third heating section and the fourth heating section are connected by one bending section 404. Two of the bending sections 404 are bent towards the second edge 12, and the other bending section 404 is bent towards the first edge 11.

A shortest distance between the bending section 404 that is bent towards the second edge 12 and the first edge 11 in the second direction ranges from 0.05 mm to 2 mm. A shortest distance between the bending section 404 that is bent towards the first edge 11 and the second edge 12 in the second direction ranges from 0.05 mm to 2 mm.

By arranging the bending sections 404, a heating area can be expanded and the heated evenness of e-liquid can be improved. Therefore, in this embodiment, the shortest distance between the bending section 404 and the second edge 12 in the second direction or the bending section 404 and the first edge 11 in the second direction is limited, to prevent service lives of components that are close to the first edge 11 and the second edge 12 on the atomization core from being affected, and further prevent a user's hand from being scalded by high temperature at positions that are close to the first edge 11 and the second edge 12 when using the atomization core.

In an embodiment, referring to FIG. 3 to FIG. 8, the strip-shaped heating body 40 has a head end heating section 401 and a tail end heating section 402, and at least one of the head end heating section 401 and the tail end heating section 402 extends along the first direction.

In an embodiment, referring to FIG. 3 to FIG. 8, the head end heating section 401 extends along the first direction, and a shortest distance between the head end heating section 401 and the first edge 11 or the second edge 12 in the second direction ranges from 0.05 mm to 2 mm.

In an embodiment, referring to FIG. 3 to FIG. 8, the tail end heating section 402 extends along the first direction, and a dimension between the tail end heating section 402 and the first edge 11 or second edge 12 in the second direction ranges from 0.05 mm to 2 mm.

Specifically, referring to FIG. 3 to FIG. 6, one end of the head end heating section 401 is connected to the first patch board 20, and one end of the tail end heating section 402 is connected to the second patch board 30. The first patch board 20 and the second patch board 30 do not generate much heat themselves, so that temperature around the head end heating section 401 and the tail end heating section 402 is relatively low. In a case that the length setting requirement on the strip-shaped heating body 40 is met, in this embodiment, a dimension between the head end heating section 401 and the first edge 11 or the second edge 12 in the second direction is limited, and a dimension between the tail end heating section 402 and the first edge 11 or the second edge 12 in the second direction is limited, avoiding heat generated by the head end heating section 401 and the tail end heating section 402 from affecting temperature of the first edge 11 and the second edge 12.

In an embodiment, the head end heating section 401 and a heating section connected thereto are connected by an arc-shaped fragment, and a curvature radius of the arc-shaped fragment is greater than 0.2. For example, the curvature radius may be 0.5, 1, or 3.

For example, referring to FIG. 1 and FIG. 2, the head end heating section 401 extends along the second direction, one end of the head end heating section 401 is connected to the first patch board 20, and the other end is connected to a bending section 404. An arc-shaped fragment is formed on the bending section 404.

For example, referring to FIG. 3 to FIG. 6, the head end heating section 401 and a heating section 403 that extends along the second direction are connected through an arc-shaped fragment. The heating section 403 that extends along the second direction is in an S-shaped structure.

For example, referring to FIG. 7 and FIG. 8, the head end heating section 401 and a heating section 403 that extends along the second direction are connected through an arc-shaped fragment. The heating section 403 that extends along the second direction is in an S-shaped structure.

In this embodiment, the head end heating section 401 and a heating section connected thereto are connected by an arc-shaped fragment, and a curvature radius of the arc-shaped fragment is greater than 0.2, avoiding the strip-shaped heating body 40 from breaking at two adjacently connected heating sections. Specifically, during heating and cooling processes of the strip-shaped heating body 40, due to different expansion rates of the strip-shaped heating body 40 and the porous body 10, each part may be compressed or stretched in a direction of a curve tangent of the strip-shaped heating body 40. By using the arc-shaped fragment, force at each part of the heating section is not superimposed in one direction, thereby reducing a risk that the heating section breaks under a large temperature difference.

In an embodiment, a total length of the strip-shaped heating body 40 ranges from 7 mm to 30 mm. In a specific embodiment, the total length of the strip-shaped heating body 40 ranges from 25 mm to 30 mm.

Specifically, in this embodiment, by improving a dimension between adjacent heating sections in the first direction, or by limiting a distance between a heating section and the first edge 11 or the second edge 12, or by limiting a number of bending times of the strip-shaped heating body 40 in the first direction, or by limiting a width dimension of the strip-shaped heating body 40 in the second direction, a purpose of arranging a long strip-shaped heating body 40 on a narrow atomization surface 101 is achieved. For example, by limiting the length of the strip-shaped heating body 40 within this range, a length requirement on the strip-shaped heating body 40 is met, the temperature distribution of the atomization core is improved, and the temperature distribution is more even.

In an embodiment, referring to FIG. 1 to FIG. 8, a width of the strip-shaped heating body 40 ranges from 0.05 mm to 2.3 mm. For example, the width of the strip-shaped heating body 40 may be 0.1 mm, 0.5 mm, 1 mm, 1.5 mm, or 2 mm.

A maximum vertical distance of the strip-shaped heating body 40 in the second direction is defined as the width of the strip-shaped heating body 40, and a width h9 of the strip-shaped heating body 40 ranges from 0.05 mm to 2.3 mm.

Specifically, the maximum vertical distance of the strip-shaped heating body 40 in the second direction is defined as the following: the strip-shaped heating body 40 extends in a curve on the atomization surface 101, and along the second direction of the atomization surface 101, a vertical distance from a highest point of the strip-shaped heating body 40 to a lowest point of the strip-shaped heating body 40 is the maximum vertical distance of the strip-shaped heating body 40.

If the width of the strip-shaped heating body 40 is excessively large, heat generated by the strip-shaped heating body 40 may affect temperature of the first edge 11 and temperature of the second edge 12. If the width of the strip-shaped heating body 40 is excessively small, heat generated by the strip-shaped heating body 40 is relatively small, leading to a poor atomization effect of the atomization core.

In the present disclosure, a width dimension of the strip-shaped heating body 40 is limited, so that the strip-shaped heating body 40 can be evenly arranged on the atomization surface 101 to the greatest extent possible, and even atomization and a consistent atomization effect of the atomization core can be ensured.

In an embodiment, a ratio of the area of the first end surface to an area of the strip-shaped heating body is less than 6.

Specifically, a product of the first dimension h1 and the second dimension h2 is defined as the area of the first end surface.

The strip-shaped heating body 40 has a length dimension and a width dimension, and a product of the length dimension and the width dimension of the strip-shaped heating body 40 is defined as the area of the strip-shaped heating body 40.

The ratio of the area of the first end surface to the area of the strip-shaped heating body 40 is less than 6.

Specifically, in this embodiment, the ratio of the area of the first end surface (that is, the atomization surface 101) to the area of the strip-shaped heating body 40 is limited. On one hand, a design for miniaturization of the atomization core can be satisfied; and on the other hand, a long strip-shaped heating body 40 can be arranged on a narrow atomization core, thereby ensuring even atomization of a consistent atomization effect of the atomization core.

In an embodiment, referring to FIG. 1 to FIG. 8, a first patch board 20 and a second patch board 30 are arranged on the atomization surface 101, and the liquid absorption surface 102 and the atomization surface 101 are arranged opposite to each other. An extension direction from the liquid absorption surface 102 to the atomization surface 101 is a third direction, and the first patch board 20 has a first central axis in the third direction. The second patch board 30 has a second central axis in the third direction, and a distance h6 between the first central axis and the second central axis ranges from 1.2 mm to 14 mm. For example, the distance h6 between the two axes is 1.5 mm, 4 mm, 6 mm, 10 mm, or 13 mm.

Specifically, the first patch board 20 and the second patch board 30 are arranged on the atomization surface 101, and the first patch board 20 and the second patch board 30 are spaced along the first direction. As shown in FIG. 1 and FIG. 2, the first patch board 20 is arranged around a positive electrode and can be electrically connected to the positive electrode, and the second patch board 30 is arranged around a negative electrode and can be electrically connected to the negative electrode. The strip-shaped heating body 40 is arranged on the atomization surface 101, a left end of the strip-shaped heating body 40 is electrically connected to the first patch board 20 that corresponds to the positive electrode, and a right end of the strip-shaped heating body 40 is electrically connected to the second patch board 30 that corresponds to the negative electrode.

In this embodiment, a distance between the two patch boards is limited, so that more mounting region is formed on the atomization surface 101 for arranging the strip-shaped heating body 40.

The first patch board 20 has the first central axis, the second patch board 30 has the second central axis, and the distance h6 between the first central axis and the second central axis ranges from 1.2 mm to 14 mm. In this embodiment, a dimension between the first central axis and the second central axis is set within this range. On the premise of ensuring a basic distance between adjacent heating sections and a basic distance between the strip-shaped heating body 40 and a patch board, a horizontal distance between the first patch board 20 and the second patch board 30 in the first direction is increased, thereby increasing a total arrangement area of the strip-shaped heating body 40 on the atomization surface 101.

For example, by increasing the number of bending times of the strip-shaped heating body 40 between the first patch board 20 and the second patch board 30, a requirement on a length of the strip-shaped heating body 40 may be met. For example, the strip-shaped heating body 40 is bent for multiple times between the first patch board 20 and the second patch board 30 to extend the length of the strip-shaped heating body 40. A number of bending sections 404 of the strip-shaped heating body 40 between the first patch board 20 and the second patch board 30 may be an odd number or an even number.

In this embodiment, the horizontal distance between the first patch board 20 and the second patch board 30 in the first direction is increased, thereby increasing the total arrangement area of the strip-shaped heating body 40 on the atomization surface 101. In addition, the strip-shaped heating body 40 is evenly distributed between the first patch board 20 and the second patch board 30, ensuring the distribution evenness of the strip-shaped heating body 40 on the porous body 10, ensuring the evenness of the temperature distribution of the porous body 10, and further ensuring the consistency of e-liquid atomization by the porous body 10.

In an embodiment, referring to FIG. 1 to FIG. 8, the first patch board 20 has a first side surface that is close to the third edge 13, and a shortest distance h8 between the first side surface and the third edge 13 in the first direction ranges from 0.15 mm to 1 mm. For example, the shortest distance h8 may be 0.3 mm, 0.5 mm, or 0.8 mm.

In an embodiment, the second patch board 30 has a second side surface that is close to the fourth edge 14, and a shortest distance between the second side surface and the fourth edge 14 in the first direction ranges from 0.15 mm to 1 mm.

In this embodiment, by limiting the shortest distance h8 between the first patch board 20 and the third edge 13, and by limiting the shortest distance between the second patch board 30 and the fourth edge 14, a horizontal distance between the first patch board 20 and the second patch board 30 is increased. In addition, by limiting the shortest distance between the first patch board 20 and the third edge 13 within this range, excessively high temperature of the third edge 13 of the atomization surface 101 can be avoided. By limiting the shortest distance between the second patch board 30 and the fourth edge 14 within this range, excessively high temperature of the fourth edge 14 of the atomization surface 101 can be avoided.

In an embodiment, a dimension of the first patch board 20 in the first direction ranges from 0.6 mm to 1 mm; or a dimension of the second patch board 30 in the first direction ranges from 0.6 mm to 1 mm; or a maximum dimension of each of the first patch board 20 and the second patch board 30 in the first direction ranges from 0.6 mm to 1 mm.

For example, referring to FIG. 1 to FIG. 8, in this embodiment, the dimensions of the first patch board 20 and the second patch board 30 in the first direction are limited, so that the first patch board 20 and the second patch board 30 are prevented from occupying too much mounting region of the atomization surface 101 without affecting a connection strength between a patch board and an electrode, thereby forming more mounting region for arranging the strip-shaped heating body 40.

For example, referring to FIG. 1 and FIG. 2 and FIG. 7 and FIG. 8, a structure of the patch board may be a circular structure. Referring to FIG. 3 to FIG. 6, a structure of the patch board may be an irregular structure.

It should be noted that, in this embodiment, the structure of the patch board is not limited, provided that a design of the patch board does not affect arrangement of the strip-shaped heating body 40 on the atomization surface 101.

In an embodiment, the strip-shaped heating body 40 has a first heating section that is close to the first patch board 20, and the first heating section that is close to the first patch board 20 extends along the second direction.

The first patch board 20 has a third side surface that is close to the strip-shaped heating body 40 in the first direction.

A shortest distance h7 between the first heating section and the third side surface ranges from 0.3 mm to 1.5 mm.

In an embodiment, the strip-shaped heating body 40 has a second heating section that is close to the second patch board 30, and the second heating section 403 extends along the second direction; the second patch board 30 has a fourth side surface that is close to the strip-shaped heating body 40 in the first direction; and

• • a shortest distance between the second heating section and the fourth side surface ranges from 0.3 mm to 1.5 mm.

Specifically, in this embodiment, a dimension between a patch board and a heating section that is adjacently arranged with the patch board in the first direction is limited, to meet an arrangement length of the strip-shaped heating body 40 on the atomization surface 101. In addition, by limiting the dimension between the patch board and the heating section that is adjacently arranged with the patch board in the first direction within this range, existence of a heating concentration point between the patch board and the heating section is avoided without affecting the arrangement of the strip-shaped heating body 40 on the atomization surface 101.

In an embodiment, referring to FIG. 1 and FIG. 2, along the extension direction from the liquid absorption surface 102 to the atomization surface 101, the atomization surface 101 has a third central axis.

The first central axis offsets towards the second edge 12 of the porous body 10 by a first predetermined distance relative to the third central axis.

The second central axis offsets towards the first edge 11 of the porous body 10 by a second predetermined distance relative to the third central axis.

Referring to FIG. 1 to FIG. 2, the first patch board 20 has the first central axis, and the first central axis offsets towards the second edge 12 of the porous body 10 by the first predetermined distance relative to the third central axis. Specifically, in this embodiment of the present disclosure, the first central axis offsets downwards by the first predetermined distance. The second patch board 30 has the second central axis, and the second central axis offsets towards the first edge 11 of the porous body 10 by the second predetermined distance relative to the third central axis. Specifically, in this embodiment of the present disclosure, the second central axis offsets upwards by the second predetermined distance.

Heat generated by the first patch board 20 and the second patch board 30 is much less than that of the strip-shaped heating body 40. Therefore, by offsetting central axes of the first patch board 20 and the second patch board 30 by the first predetermined distance, an arranging region of the strip-shaped heating body 40 on the porous body 10 in the second direction is increased without affecting edge temperature of the porous body 10.

The first patch board 20 is arranged offsetting towards the second edge 12 of the porous body 10, and the second patch board 30 is arranged offsetting towards the first edge 11 of the porous body 10. Therefore, the first patch board 20 and the second patch board 30 are located on different sides of the porous body 10, so that the strip-shaped heating body 40 that extends in a curve between the first patch board 20 and the second patch board 30 can be evenly distributed on both sides of the porous body 10, thereby increasing the distribution evenness of heat generated by the strip-shaped heating body 40 on the porous body 10 and making the temperature distribution of the strip-shaped heating body 40 more even.

In an embodiment, referring to FIG. 1 and FIG. 2, a ratio of the first predetermined distance to the first dimension ranges from 1/5 to 1/3; or a ratio of the second predetermined distance to the second dimension ranges from 1/5 to 1/3; or a ratio of the first predetermined distance to the first dimension and a ratio of the second predetermined distance to the first dimension both range from 1/5 to 1/3.

Specifically, if an offsetting distance of the first central axis of the first patch board 20 relative to the third central axis is excessively large, the first patch board 20 is arranged closer to the second edge 12, the heat generated by the strip-shaped heating body 40 is transmitted to the first patch board 20, temperature of the first patch board 20 affects temperature of the second edge 12, affecting temperature of a housing of the e-cigarette and affecting a service life of the e-cigarette.

If an offsetting distance of the first central axis of the first patch board 20 relative to the third central axis is excessively small, no more region is reserved in the second direction of the porous body 10 to arrange the strip-shaped heating body 40, affecting an arrangement length of the strip-shaped heating body 40 on the porous body 10.

In this embodiment, the first predetermined distance is limited within this range, ensuring the arrangement length of the strip-shaped heating body 40 on the porous body 10.

It should be noted that, a dimension of the first predetermined distance and a dimension of the second predetermined distance may be the same or may be different. In particular, to make the strip-shaped heating body 40 be more evenly distributed on the porous body 10, the dimension of the first predetermined distance and the dimension of the second predetermined distance are set to be the same.

In an embodiment, referring to FIG. 1 to FIG. 2, the strip-shaped heating body 40 includes a head end heating section 401, one end of the head end heating section 401 is connected to the first patch board 20, and the head end heating section 401 extends from the first patch board 20 towards the first edge 11 of the porous body 10; and

• • the strip-shaped heating body 40 includes a tail end heating section 402, one end of the tail end heating section 402 is connected to the second patch board 30, and the tail end heating section 402 extends from the second patch board 30 towards the second edge of the porous body 10.

Specifically, in a case that the first central axis of the first patch board 20 offsets towards the second edge 12 of the porous body 10 by the first predetermined distance, the head end heating section 401 is arranged on the first patch board 20, and the head end heating section 401 is electronically connected to the first patch board 20. The head end heating section 401 extends along the second direction of the porous body 10 towards the first edge 11 by a preset distance. In a case that the second central axis of the second patch board 30 offsets towards the first edge 11 of the porous body 10 by the second predetermined distance, the tail end heating section 402 is arranged on the second patch board 30, and the tail end heating section 402 is electronically connected to the second patch board 30. The tail end heating section 402 extends along the second direction of the porous body 10 towards the second edge 12 by the preset distance.

Therefore, in the embodiments of the present disclosure, when the strip-shaped heating body 40 is connected to a patch board, the strip-shaped heating body 40 can extend along the second direction of the porous body 10, ensuring a length of the strip-shaped heating body 40 that is arranged on the porous body 10.

Therefore, in the embodiments of the present disclosure, central locations of the first patch board 20 and the second patch board 30 offset towards different sides by the predetermined distance, so that an arrangement region of the strip-shaped heating body 40 in the second direction of the porous body is increased without affecting edge temperature of the porous body 10.

In an embodiment, the strip-shaped heating body 40 includes a first side heating section, an intermediate heating section, and a second side heating section. The first side heating section, the intermediate heating section, and the second side heating section extend along the second direction and are adjacently arranged in the first direction, and the intermediate heating section is located between the first side heating section and the second side heating section; and

• • the first side heating section, the intermediate heating section, and the second side heating section are connected by two bending sections 404 with reverse bending directions, and the two bending sections 404 tilt towards each other in the first direction.

For example, the two bending sections 404 are in semi-arc-shaped structures, and the bending sections 404 are symmetrically arranged about a central axis, where the central axis is an inclined line.

For example, the two bending sections 404 include a first bending section and a second bending section.

A central axis of the first bending section is arranged parallel to a central axis of the second bending section. Heat generated by the first bending section and heat generated by the intermediate heating section affect each other. In a case that the entire first bending section tilts towards the second side heating section, heat distributed in and around the first bending section and the second side heating section is more even.

For example, the second bending section is in a semi-arc-shaped structure, the second bending section is arranged symmetrically about the central axis, where the central axis is an inclined line. The central axis of the second bending section is arranged parallel to the central axis of the first bending section. Heat generated by the second bending section and the heat generated by the intermediate heating section affects each other. In a case that the entire second bending section tilts towards the first side heating section, heat distributed in and around the second bending section 404 and the first side heating section is more even.

In an embodiment, a width of the intermediate heating section is greater than a width of the first side heating section or a width of the second side heating section.

Specifically, because an outer side of the intermediate heating section is surrounded by multiple heating sections, in order to prevent excessively high heat around the intermediate heating section, the width of the intermediate heating section may be increased to reduce resistance of the intermediate heating section, finally decreasing heat in the intermediate heating section, and further effectively avoiding excessively concentrated heat in the intermediate heating section.

In an embodiment, the strip-shaped heating body 40 is a centrosymmetric body. By adopting a centrosymmetric structure, it is not only convenient for processing and production, but also conducive to achieving the evenness in heat generated by the strip-shaped heating body 40.

According to a second aspect of the embodiments of the present disclosure, an e-cigarette is provided. The e-cigarette includes the atomization core of the e-cigarette described above. Because the atomization core of the e-cigarettes according to the embodiments of the present disclosure has the above-mentioned technical effects, the e-cigarette according to the embodiments of the present disclosure also has the above-mentioned technical effects. Finally, a structure of the e-cigarette may be more convenient for carrying and holding.

Although some specific embodiments of the present disclosure have been explained in detail through examples, a person skilled in the art should understand that the foregoing examples are only for illustrative purposes and do not limit the scope of the present disclosure. A person skilled in the art should understand that, modifications may be made to the foregoing embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is limited by the appended claims.

Claims

1. An atomization core of an e-cigarette, comprising:

a porous body and a strip-shaped heating body,

the porous body having a liquid absorption end and an atomization end, the atomization end having a first end surface that is away from the liquid absorption end, and the strip-shaped heating body being arranged on the first end surface,

the first end surface having a first edge and a second edge that extend along a first direction and are spaced along a second direction, and a maximum distance between the first edge and the second edge in the second direction being a first dimension, and

the first end surface having a third edge and a fourth edge that extend along the second direction and are spaced along the first direction, and a maximum distance between the third edge and the fourth edge in the first direction being a second dimension, wherein a ratio of the second dimension to the first dimension is greater than or equal to 2, and the first dimension ranges from 1.2 mm to 3.8 mm.

2. The atomization core of the e-cigarette according to claim 1, wherein the second dimension ranges from 6.5 mm to 15 mm.

3. The atomization core of the e-cigarette according to claim 1, wherein:

a bump is arranged on the atomization end, the bump having a second end surface that is away from the liquid absorption end and a side surface that is located on an outer periphery of the bump, wherein the second end surface is an atomization surface, or the second end surface and the side surface are atomization surfaces; and

the liquid absorption end has a third end surface that is away from the atomization end, the third end surface being a liquid absorption surface.

4. The atomization core of the e-cigarette according to claim 3, wherein the liquid absorption surface has a seventh edge and an eighth edge that extend along the second direction and are spaced along the first direction, a maximum distance between the seventh edge and the eighth edge in the first direction being a third dimension, and the third dimension being greater than the second dimension; or the liquid absorption surface has a fifth edge and a sixth edge that extend along the first direction and are spaced along the second direction, a maximum distance between the fifth edge and the sixth edge in the second direction being a fourth dimension, and the fourth dimension being the same as the first dimension,

the third dimension ranging from 7.5 mm to 22 mm.

5. The atomization core of the e-cigarette according to claim 1, wherein the strip-shaped heating body extends in a curve on the first end surface; and

the heating body has two heating sections that extend along the second direction and are adjacently arranged along the first direction, wherein a minimum distance between the two heating sections in the first direction is a fifth dimension, the fifth dimension ranging from 0.2 mm to 2 mm; and

wherein the two heating sections are connected by a bending section, the bending section being bent towards the first edge or the bending section being bent towards the second edge.

6. The atomization core of the e-cigarette according to claim 5, wherein the bending section is bent towards the first edge, and a shortest distance between the bending section and the second edge in the second direction ranges from 0.05 mm to 2 mm; or the bending section is bent towards the second edge, and a shortest distance between the bending section and the first edge in the second direction ranges from 0.05 mm to 2 mm.

7. The atomization core of the e-cigarette according to claim 1, wherein the strip-shaped heating body has a head end heating section and a tail end heating section, and at least one of the head end heating section and the tail end heating section extends along the first direction.

8. The atomization core of the e-cigarette according to claim 7, wherein the head end heating section extends along the first direction, and a shortest distance between the head end heating section and the first edge or the second edge in the second direction ranges from 0.05 mm to 2 mm; or the tail end heating section extends along the first direction, and a shortest distance between the tail end heating section and the first edge or second edge in the second direction ranges from 0.05 mm to 2 mm.

9. The atomization core of the e-cigarette according to claim 7, wherein the head end heating section and a heating section connected thereto are connected by an arc-shaped fragment, a curvature radius of the arc-shaped fragment being greater than 0.2.

10. The atomization core of the e-cigarette according to claim 1, wherein a total length of the strip-shaped heating body ranges from 7 mm to 30 mm;

and a width of the strip-shaped heating body ranges from 0.05 mm to 2.3 mm.

11. The atomization core of the e-cigarette according to claim 3, wherein a ratio of an area of the atomization surface to an area of the strip-shaped heating body is less than 6.

12. The atomization core of the e-cigarette according to claim 3, wherein a first patch board and a second patch board are arranged on the atomization surface; the liquid absorption surface and the atomization surface are arranged opposite to each other; and an extension direction from the liquid absorption surface to the atomization surface is a third direction, the first patch board having a first central axis in the third direction, the second patch board having a second central axis in the third direction, and a distance between the first central axis and the second central axis ranging from 1.2 mm to 14 mm.

13. The atomization core of the e-cigarette according to claim 12, wherein the first patch board has a first side surface that is close to the third edge, a shortest distance between the first side surface and the third edge in the first direction ranging from 0.15 mm to 1 mm; or the second patch board has a second side surface that is close to the fourth edge, a shortest distance between the second side surface and the fourth edge in the first direction ranging from 0.15 mm to 1 mm.

14. The atomization core of the e-cigarette according to claim 12, wherein a maximum dimension of the first patch board in the first direction ranges from 0.6 mm to 1 mm; or

a maximum dimension of the second patch board in the first direction ranges from 0.6 mm to 1 mm, or a maximum dimension of each of the first patch board and the second patch board in the first direction ranges from 0.6 mm to 1 mm.

15. The atomization core of the e-cigarette according to claim 12, wherein the strip-shaped heating body has a first heating section that is close to the first patch board, the first heating section extending along the second direction, and wherein the first patch board has a third side surface that is close to the strip-shaped heating body in the first direction, a shortest distance between the first heating section and the third side surface ranging from 0.3 mm to 1.5 mm; or

the strip-shaped heating body has a second heating section that is close to the second patch board, the second heating section extending along the second direction, and wherein the second patch board has a fourth side surface that is close to the strip-shaped heating body in the first direction, a shortest distance between the second heating section and the fourth side surface ranging from 0.3 mm to 1.5 mm.

16. The atomization core of the e-cigarette according to claim 12, wherein along the extension direction from the liquid absorption surface to the atomization surface, the atomization surface has a third central axis, wherein:

the first central axis offsets towards the second edge of the porous body by a first predetermined distance relative to the third central axis; and

the second central axis offsets towards the first edge of the porous body by a second predetermined distance relative to the third central axis.

17. The atomization core of the e-cigarette according to claim 16, wherein a ratio of the first predetermined distance to the first dimension ranges from 1/5 to 1/3; or a ratio of the second predetermined distance to the second dimension ranges from 1/5 to 1/3; or a ratio of the first predetermined distance to the first dimension and a ratio of the second predetermined distance to the first dimension both range from 1/5 to 1/3.

18. The atomization core of the e-cigarette according to claim 12, wherein the strip-shaped heating body has a head end heating section, one end of the head end heating section is connected to the first patch board, and the head end heating section extends from the first patch board towards the first edge of the porous body; and

the strip-shaped heating body has a tail end heating section, one end of the tail end heating section is connected to the second patch board, and the tail end heating section extends from the second patch board towards the second edge of the porous body.

19. The atomization core of the e-cigarette according to claim 1, wherein the strip-shaped heating body comprises a first side heating section, an intermediate heating section, and a second side heating section, wherein:

the first side heating section, the intermediate heating section, and the second side heating section extend along the second direction and are adjacently arranged in the first direction;

the intermediate heating section is located between the first side heating section and the second side heating section;

the first side heating section, the intermediate heating section, and the second side heating section are connected by two bending sections with reverse bending directions, the two bending sections tilt towards each other in the first direction; and

a width of the intermediate heating section is greater than a width of the first side heating section or a width of the second side heating section.

20. An e-cigarette, comprising a housing and the atomization core of the e-cigarette according to claim 1 that is arranged in the housing.