HEATING CORE AND ATOMIZING DEVICE COMPRISING THE SAME

Abstract

A heating core including: a heating element including a heating part; a thermal and liquid conductive block including a first surface and a second surface disposed respectively on two opposite sides along a vertical direction; and a first electrode and a second electrode. The first surface is configured to be in contact with an atomizing substance. The heating part is disposed on the second surface. The heating part is disposed between and electrically connected to the first electrode and the second electrode. The thermal and liquid conductive block is configured to transfer heat generated by the heating part to the atomizing substance and guide the atomizing substance from the first surface to the second surface. The heating part is configured to at least partially transform the atomizing substance guided to the second surface into an aerosol and allow the aerosol to leave the second surface from the heating part.

Description

CROSS‌-REFERENCE TO RELATED APPLICATIONS

Pursuant to 35 U.S.C.§ 119 and the Paris Convention Treaty, this application claims foreign priority to Chinese Patent Application No. 202520108191.7 filed Jan. 15, 2025, the contents of which, including any intervening amendments thereto, are incorporated herein by reference. Inquiries from the public to applicants or assignees concerning this document or the related applications should be directed to: Matthias Scholl P.C., Attn.: Dr. Matthias Scholl Esq., 245 First Street, 18th Floor, Cambridge, MA 02142.

BACKGROUND

The disclosure relates to the field of atomization technology, and more particularly to a heating core and an atomizing device comprising the same.

An atomizing device is an electronic delivery system that provides an aerosol to a user for vaping, typically by heating and atomizing an atomization substance in whole or in part into an aerosol. The atomizing substance may be a medium such as an e-cigarette liquid, a medical drug, a skin lotion, etc., in liquid form, or it may be a solid or gel (e.g., a vape cream), etc. For the solid or gel form of the atomizing substance, the rate at which the atomizing substance is supplied to the heat core directly determines how much of the aerosol is inhaled by the user.

Thus, there is a need to provide a heating core capable of delivering an atomizing substrate at a steady rate to avoid under-supply of aerosol or over-supply of aerosol, thereby enabling the user to inhale the aerosol at an effective and safe dosage.

SUMMARY

To solve the aforesaid problems, one objective of the disclosure is to provide a heating core comprising:

a heating element comprising a heating part;

a thermal and liquid conductive block comprising a first surface and a second surface disposed respectively on two opposite sides along a vertical direction, the first surface being configured to be in contact with an atomizing substance, and the heating part being disposed on the second surface; and

a first electrode and a second electrode, the heating part being disposed between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode.

The thermal and liquid conductive block is configured to transfer heat generated by the heating part to the atomizing substance and guide the atomizing substance from the first surface to the second surface; and the heating part is configured to at least partially transform the atomizing substance guided to the second surface into an aerosol and allow the aerosol to leave the second surface from the heating part.

During the operation of the heating core, the heating part on the second surface indirectly heats the atomizing substance, such as a paste, located on the first surface through the thermal and liquid conductive block. The pasty atomizing substance is transferred from the first surface to the second surface after being melted by heat and is heated and atomized into an aerosol on the heating part. Because the thermal and liquid conductive block facilitates indirect heat and mass transfer between the heating part and the atomizing substance, the rate of supplying the atomizing substance to the heating part is stable and controllable, so that the aerosol can be generated stably, which avoids under-supply or over-supply of the aerosol, and thus enables the user to vape the aerosol in an effective and safe dosage.

In another aspect, the disclosure also provides an atomizing device, comprising:

the heating core;

an accommodation chamber for storing the atomizing substance, where the first surface functions as a bottom wall of the accommodation chamber; and

an atomizing chamber, the heating part being exposed in the atomizing chamber such that the atomizing substance after being heated and atomized by the heating part leaves the second surface and enters the atomizing chamber.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a heating core of one embodiment of the disclosure;

FIG. 2 is a side view of a heating core of one embodiment of the disclosure;

FIG. 3 is a schematic diagram of a heating element of one embodiment of the disclosure;

FIG. 4 is a cross-section view of an atomizing device of one embodiment of the disclosure;

FIG. 5 is another cross-section view of an atomizing device of one embodiment of the disclosure;

FIG. 6 is a schematic diagram of a seal element of one embodiment of the disclosure;

FIG. 7 is a schematic diagram of a connection of a thermal and liquid conductive block and a seal element of one embodiment of the disclosure;

FIG. 8 is a cross-section view of a connection of a thermal and liquid conductive block and a seal element of one embodiment of the disclosure;

FIG. 9 is a cross-section view of a bracket of one embodiment of the disclosure;

FIG. 10 is a schematic diagram of a bracket of one embodiment of the disclosure;

FIG. 11 is a cross-section view of an atomizing device of another embodiment of the disclosure;

FIG. 12 is a schematic diagram of a heating core and an annular heat conduction wall of one embodiment of the disclosure; and

FIG. 13 is a schematic diagram of an e-liquid barrier of one embodiment of the disclosure.

In the drawings, the following reference numbers are used: 10. Atomizing device; 100. Heating core; 110. Heating element; 111. Heating part; 1111. First heating part; 1112. Second heating part; 112. Blocking part; 1121. First blocking part; 1122. Second blocking part; 120. Thermal and liquid conductive block; 121. First surface; 122. Second surface; 131. First electrode; 132. Second electrode; 140. Fixed leg;

200. Accommodation chamber; 210. Annular heat conduction wall; 300. Atomizing chamber; 410. Air admission passage; 420. Air exhaust passage; 500. Seal element; 510. Through slot; 521. First hole; 522. Second hole; 600. E-liquid collection recess; 610. E-liquid absorbent cotton; 700. Bracket; 710. Bulge; 720. Side wall; 730. Partition wall; 731. First through hole; 741. First cavity; 742. Second cavity; 800. Housing; 810. Air inlet; 820. Mouthpiece; 830. Handle; 900. Power module; 402. Second through hole;

D1: Vertical direction; D2: Horizontal direction.

DETAILED DESCRIPTION

To further illustrate the disclosure, embodiments detailing a heating core and atomizing device comprising the same are described below. It should be noted that the following embodiments are intended to describe and not to limit the disclosure.

In this disclosure, unless otherwise specified, the terms “connected”, “fixed”, etc. are to be understood in a broad sense, e.g., either directly or indirectly through an intermediate medium, or as a connection within two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the disclosure may be understood in actual need.

As used herein, “communication” refers to fluid communication, i.e., a fluid (including a liquid and/or a gas) can flow from one component to another. In addition, as used herein, communication between two components may refer to direct connectivity between two components, e.g., at least partial alignment between two holes, or connectivity through an intermediate medium.

“Atomizing substance” means a mixture or auxiliary substance that can be atomized, in whole or in part, into an aerosol by an electronic or similar device.

The term “aerosol” refers to a colloidal dispersion system comprising small solid or liquid particles dispersed and suspended in a gaseous medium.

The disclosure provides a heating core or an atomizing device capable of providing an atomized substance at a stable rate, thereby enabling a user to vape aerosol at an effective and safe dosage and avoiding under-supply of aerosol or over-supply of aerosol.

The following embodiments are illustrated as examples of a heating core and an atomizing device comprising the same of the disclosure.

FIGS. 1 and 2 show a schematic diagram of a heating core of the disclosure. The heating core 100 comprises a heating element 110, a thermal and liquid conductive block 120, a first electrode 131 and a second electrode 132. The heating element 110 comprises a heating part 111. The thermal and liquid conductive block 120 comprises a first surface 121 and a second surface 122 disposed respectively on two opposite sides along a vertical direction D1; the first surface 121 is configured to be in contact with an atomizing substance, and the heating part 111 is disposed on the second surface 122. The heating part 111 is disposed between and electrically connected to the first electrode 131 and the second electrode 132. The thermal and liquid conductive block 120 is configured to transfer heat generated by the heating part 111 to the atomizing substance and guide the atomizing substance from the first surface 121 to the second surface 122; and the heating part 111 is configured to at least partially transform the atomizing substance guided to the second surface 122 into an aerosol and allows the aerosol to leave the second surface 122 from the heating part 111.

The heating part 111 is in contact with the second surface 122 of the thermal and liquid conductive block 120, and the atomizing substance to be atomized is in contact with the first surface 121 of the thermal and liquid conductive block 120. When the heating part 111 is connected to a working circuit through the first electrode 131 and the second electrode 132, the heat generated by the heating part 111 is transferred from the second surface 122 of the thermal and liquid conductive block 120 to the first surface 121, indirectly heating the atomizing substance, causing at least a portion of, for example, the atomizing substance, which is in the form of a solid or a paste, to be melted into a liquid state. Understandably, the first surface 121 and the second surface 122 are disposed at two ends of the thermal and liquid conductive block 120 along the vertical direction D1, respectively.

The thermal and liquid conductive block 120 is capable of absorbing the liquid atomizing substance and transfers the liquid atomizing substance from the first surface 121 of the thermal and liquid conductive block 120 to the second surface 122. Since the heating part 111 is disposed on the second surface 122, the heating part 111 transforms the atomizing substance transferred to the second surface 122 at least partially into an aerosol, and the aerosolized atomizing substance leaves the second surface 122 from the heating part 111. Understandably, the ability of the thermal and liquid conductive block 120 to absorb and transfer the liquid atomizing substance may be achieved by mechanically processing the thermal and liquid conductive block 120 so as to form a transfer channel for the liquid atomizing substance, or by forming the thermal and liquid conductive block 120 using a material that is prone to forming capillary pores internally. The disclosure does not limit the specific structure or material of the thermal and liquid conductive block 120.

In some embodiments, the first surface 121 is disposed above the second surface 122 along the vertical direction D1 such that the liquid atomizing substance can be spontaneously transferred from the first surface 121 to the second surface 122 under the effect of gravity.

As a result, because the thermal and liquid conductive block 120 facilitates indirect heat and mass transfer between the heating part 111 and the atomizing substance, the rate of supplying the atomizing substance to the heating part 111 is stable and controllable, so that the aerosol can be generated stably, which avoids under-supply or over-supply of the aerosol, and thus enables the user to vape the aerosol in an effective and safe dosage.

In certain embodiments, the heating element 110 further comprises a blocking part 112 which is lamellar; the blocking part 112 is attached to at least a portion of the second surface 122, thereby blocking the atomizing substance from passing through the blocking part 112 in the vertical direction D1.

As shown in FIG. 1, the blocking part 112 may be a lamellar structure with a small thickness along the vertical direction D1. After the lamellar structure is affixed to the second surface 122, the atomizing substance passed to the second surface 122 is unable to leave the thermal and liquid conductive block 120 and reach the vicinity of the heating part 111 from the region with the blocking part 112, thereby controlling to a certain extent the amount of formation of the aerosol at the heating part 111, which is conducive to preventing excess supply of the aerosol. At the same time, the provision of the blocking part 112 also prevents the atomizing substance from oozing out of the second surface 122 at the position away from the heating part 111, and to a certain extent prevents leakage of the atomizing substance.

Thus, by providing the blocking part 112 at the heating element 110, the amount of aerosol generated at the heating part 111 can be controlled to a certain extent, and the leakage of the atomizing substance can be prevented to a certain extent.

FIG. 3 shows a schematic diagram of the heating element of the disclosure. As shown in FIG. 3, the heating element 110 comprises a first heating part 1111 and a second heating part 1112; the blocking part 112 comprises a first blocking part 1121 and a second blocking part 1122; the first blocking part 1121, the first heating part 1111, the second blocking part 1122 and the second heating part 1112 are sequentially connected head to tail to form a closed annular layer.

In some embodiments, the first blocking part 1121 and the second blocking part 1122 are made of conductive materials, and the first electrode 131 and the second electrode 132 are electrically connected to the first blocking part 1121 and the second blocking part 1122, respectively. The first heating part 1111 and the second heating part 1112 are electrically connected to any position of the closed annular layer formed by the first blocking part 1121, the first heating part 1111, the second blocking part 1122 and the second heating part 111, which is conducive to simplifying the circuit connection.

As a result, by providing two heating parts, it is conducive to further improving the heating and atomization efficiency. Optionally, more heating parts may be provided, and the disclosure does not limit the number of the heating parts.

In certain embodiments, the second surface 122 is circular; the first blocking part 1121, the first heating part 1111, the second blocking part 1122 and the second heating part 1112 are sequentially connected head to tail to form a closed annular layer; the closed annular layer is affixed to the outer edge of the second surface 122.

In certain embodiments, the first surface 121 projects outwards along the vertical direction D1. As a result, the atomizing substance melted into a liquid state on the first surface 121 will gather at the outer edge of the first surface 121 under the effect of gravity and pass to the outer edge of the second surface 122 in a vertical direction, which is to some extent conducive to stably supplying the atomizing substance to the first heating part 1111 and the second heating part 1112.

In certain embodiments, the heating part 111 comprises reciprocating zigzag bends. As a result, the heating part 111 can be arranged in a more compact manner within a limited area, increasing the heat dissipation area of the heating part 111. At the same time, the zigzag structure can also improve the mechanical strength of the heating part 111 to a certain extent.

In certain embodiments, the outer edge of the heating element 110 comprises a fixed leg 140; and the heating element 110 is securely connected to the thermal and liquid conductive block 120 via the fixed leg 140. The fixed leg 140 may be disposed at the edge of the heating part 111 or at the edge of the blocking part 112. Thus, by means of the fixed leg 140, the heating element 110 can be fixed to the thermal and liquid conductive block 120.

In certain embodiments, the fixed leg 140 is disposed at an angle with respect to the outer edge of the heating element 110 and is embedded in the thermal and liquid conductive block 120.

In certain embodiments, the heating part 111 has a resistance of 0.2-3 Ohm. Thus, the amount of heat generated by the heating part 111 is stable and controllable, which helps to avoid under-supply or over-supply of aerosol to a certain extent and thus enables the user to inhale the aerosol at an effective and safe dosage.

In certain embodiments, the thermal and liquid conductive block 120 comprises a plurality of capillary pores for transferring the atomizing substance between the first surface 121 and the second surface 122.

In certain embodiments, the thermal and liquid conductive block 120 comprises quartz, ceramic, glass or mica. The heating element 110 may, for example, be sintered integrally with the thermal and liquid conductive block 120. The capillary pores for liquid conduction can be formed on the inside of the quartz, ceramic, glass or mica by chemical etching, or by the process of sintering the quartz beads, ceramic powder, glass beads or mica powder each in one piece. Optionally, the quartz or glass can also be processed by laser to form the desired capillary pores. Thus, the material of the thermal and liquid conductive block 120 is selected to be quartz, ceramic or mica to facilitate the formation of capillary pores for liquid conduction and to control the rate of liquid conduction.

In another aspect, the disclosure provides an atomizing device 10.

FIGS. 4 and 5 shows schematic diagrams of the atomizing device 10 in diffraction cross sections. As shown in FIGS. 4-5, the atomizing device comprises the heating core 100, an accommodation chamber 200 for storing the atomizing substance, and an atomizing chamber 300. The first surface 121 functions as a bottom wall of the accommodation chamber; and the heating part 111 is exposed in the atomizing chamber 300 such that the atomizing substance after being heated and atomized by the heating part 111 leaves the second surface 122 and enters the atomizing chamber 300.

The accommodation chamber 200 is a closed chamber for holding the atomizing substance, the bottom surface of which in the vertical direction D 1 is defined by the first surface 121 of the thermal and liquid conductive block 120. The second surface 122 of the thermal and liquid conductive block 120 and the heating part 111 are connected to the inner space of the atomizing chamber 300, so that the atomizing substrate from the heating part 111, after being heated and atomized, leaves the second surface 122 and enters the atomizing chamber 300. In addition, the atomizing chamber 300 communicates with the air outside of the atomizing device 10, so that the atomizing substrate mixes with the air inside the atomizing chamber 300 to form an aerosol for inhalation by a user.

Since the atomizing device 10 comprises the heating core 100 of the disclosure, the atomizing device 10 is able to avoid under-supply or over-supply of the aerosol to a certain extent, thereby enabling the user to inhale the aerosol at an effective and safe dosage.

As shown in FIG. 4, the atomizing chamber 300 is disposed below the heating part 111 in the vertical direction D1.

As a result, a transfer path of the atomizing substance is formed in the vertical direction D1 in the order of “the accommodation chamber 200 - the first surface 121 - the thermal and liquid conductive block 120 - the heating part 111 (or the second surface 122) - the atomizing chamber 300”. Under the effect of gravity, the atomizing substance after being heated and melted can spontaneously enter the accommodation chamber 200 through the aforementioned path, which is to some extent conducive to providing a more stable generation rate of aerosol.

As shown in FIG. 4, the atomizing device further comprises an annular heat conduction wall 210 which is a thin-walled structure around the accommodation chamber 200, and a lower end of the annular heat conduction wall 210 along the vertical direction D1 is in contact with the first surface 121.

The annular heat conduction wall 210 is a thin-walled structure disposed around the accommodation chamber 200 and extends for a height along the vertical direction D1 to define the accommodation chamber 200 along the horizontal direction D2. The bottom of the annular heat conduction wall 210 in the vertical direction D1 is in contact with the first surface 121, so that the heat generated by the heating part 111 is able to be conducted to the annular heat conduction wall 210 through the first surface 121. The annular heat conduction wall 210 and the thermal and liquid conductive block 120 may contact each other, be fixedly connected, or be integrally formed.

In some embodiments, the annular heat conduction wall 210 is made of a metallic material to achieve a better heat-conducting effect.

As a result, when the atomizing substance is placed inside the accommodation chamber 200, the atomizing substance is in contact with the annular heat conduction wall 210, so that the annular heat conduction wall 210 is able to heat the atomizing substance from the lateral direction, which is conducive to preheating the atomizing substance inside the accommodation chamber 200 and avoiding wall sticking phenomenon of the atomizing substance.

As shown in FIGS. 11 and 12, an auxiliary heating wall 211 is disposed on the outer peripheral surface of the annular heat conduction wall 210. The auxiliary heating wall 211 is connected in a parallel circuit relationship with the heating part 111, and the control temperature of the auxiliary heating wall 211 is lower than that of the heating part 111. By providing the auxiliary heating wall 211, the atomizing substance can be preheated independently, facilitating consistent fluidity of the atomizing substance during consumption and ensuring smooth downward movement toward the heat-conducting oil-guiding block 120.

A passivation layer is provided between the auxiliary heating wall 211 and the annular heat conduction wall 210. The auxiliary heating wall 211 is made of metallic material. The passivation layer comprises aluminum alloy with anodic oxidation removed, or a passivation layer formed of silicon oxide, silicon nitride, or aluminum nitride.

FIGS. 6-8 show schematic diagrams of a connection of the thermal and liquid conductive block 120 and a seal element 500. As shown in FIGS. 6-8, the atomizing device further comprises a seal element 500; the seal element 500 is secured to the second surface 122, and the seal element 500 comprises a through slot 510 corresponding to the heating part 111 in position. The seal element 500 is disposed between the second surface 122 and the atomizing chamber 300, and the seal element 500 isolates the second surface 122 and the atomizing chamber 300 except at the position of the through slot 510. As a result, the seal element 500 is able to avoid, to a certain extent, the leakage of the atomizing substrate from the positions other than the through-slot 510 (i.e., the heating part 111).

The seal element 500 comprises a first hole 521 and a second hole 522 at positions corresponding to the first electrode and the second electrode for allowing the first electrode 131 and the second electrode 132 to pass through.

In certain embodiments, the atomizing device 10 further comprises an e-liquid collection recess 600; the e-liquid collection recess 600 is disposed below the atomizing chamber 300 in the vertical direction D1, and the e-liquid collection recess 600 matches the heating element 110 in terms of the position and shape. The e-liquid collection recess 600 collects liquid atomizing substance that may leak from the heating part 111, thus preventing the leakage of the atomizing substance.

Referring to FIGS. 9 and 10, the e-liquid collection recess 600 is formed, for example, by a bracket 700 comprising a central bulge 710 and a side wall 720 surrounding the bulge 710. The e-liquid collection recess 600 is formed between the bulge 710 and the side wall 720. The bulge 710 rests against the heating element 110 to support the heating element 110 as well as the atomizing substrate disposed above the heating element 110. The side wall 720 is lower than the bulge 710 in the vertical direction D1 to form an airflow channel.

In certain embodiments, the atomizing device 10 further comprises a piece of e-liquid absorbent cotton 610 configured to absorb the atomizing substance in the e-liquid collection recess 600. The e-liquid absorbent cotton 610 is disposed at the bottom of the e-liquid collection recess 600 or in a separate space connected to the e-liquid collection recess 600.

In certain embodiments, at least a portion of the e-liquid absorbent cotton 610 is lower than the bottom of the e-liquid collection recess 600, allowing the liquid atomizing substance within the e-liquid collection recess 600 to flow to the e-liquid absorbent cotton 610 by gravity, thereby improving the absorbing effect.

As shown in FIGS. 9 and 10, the bracket 700 further comprises a partition wall 730. The partition wall 730 is disposed at the bottom of the e-liquid collection recess 600 and separates the cavity between the bulge 710 and the side wall 720 into the e-liquid collection recess 600 above the partition wall and a first cavity 741 below the partition wall. At least one first through hole 731 is provided in the partition wall 730 for directing the liquid atomizing substance in the e-liquid collection recess 600 to the first cavity 741 located below the intermediate wall 730, and the e-liquid absorbent cotton 610 is disposed, for example, in the first cavity 741. Alternatively, as shown in FIG. 9, the e-liquid absorbent cotton 610 is disposed in a second cavity 742 of the bulge 710 and the second cavity 742 communicates with the first cavity 741.

The top of the side wall 720 is higher than the partition wall 730 in the vertical direction D1 thus preventing the leakage of the liquid atomizing substance falling on the partition wall 730.

Thus, by providing the e-liquid absorbent cotton 610, it is advantageous to prevent the leakage of the liquid atomizing substance in the e-liquid collection recess 600.

In certain embodiments, the atomizing device 10 further comprises an air admission passage 410 and an air exhaust passage 420; the air admission passage 410 and the air exhaust passage 420 communicate with a top of the atomizing chamber 300 in the vertical direction D1. In this way, the possible leakage of the liquid atomizing substance at the bottom of the atomizing chamber 300 or in the e-liquid collection recess 600 via the air admission passage 410 and/or the air exhaust passage 420 is prevented to a certain extent.

As shown in FIGS. 11 and 13, a gasket 401 is disposed in the air exhaust passage 420. The gasket 401 comprises a second through hole 402, and an e-liquid barrier 421 is disposed between adjacent second through holes 402. In other embodiments, the e-liquid barrier 421 protrudes from the wall of the atomizing device 10 corresponding to the air exhaust passage 420. The number of the e-liquid barrier 421 may be one or more. At least a portion of, or the entirety of, the air exhaust passage 420 extends along a horizontal direction D2 of the atomization device 10. Where multiple e-liquid barriers 421 exist, they are arranged side by side along the horizontal direction D2. Each e-liquid barrier 421 protrudes in the vertical direction D1 relative to the atomizing device 10. The o e-liquid barrier 421 is configured to block the e-liquid leakage.

As shown in FIG. 4, the air admission passage 410, the atomizing chamber 300, and the air exhaust passage 420 extend in the horizontal direction of the atomizing device 10. The first heating part 1111 and the second heating part 1112 are symmetrically arranged about the horizontal direction so that the airflow entering through the air admission passage 410 can sufficiently carry away the aerosol formed by atomization.

In certain embodiments, the air admission passage 410 and the air exhaust passage 420 are integrated with the bracket 700.

As shown in FIG. 4, the atomizing device 10 further comprises a housing 800 extending at least partially in a horizontal direction D2; the housing 800 comprises an air inlet 810 and a mouthpiece 820 respectively disposed at both ends of the housing in the horizontal direction D2; the accommodation chamber 200 is disposed on one end of the housing 800 away from the mouthpiece 820 and the accommodation chamber 200 comprises an opening in a direction back from the atomizing chamber 300; and the air inlet 810, the air admission passage 410, the atomizing chamber 300, the air exhaust passage 420 and the mouthpiece 820 are connected to one another in sequence. The housing 800 further comprises a handle 830 for a user to hold the atomizing device 10.

In some embodiments, both the air admission passage 410 and the air exhaust passage 420 are defined by both the housing 800 and the bracket 700.

As shown in FIG. 4, the atomizing device 10 further comprises a power module 900 electrically connected to the first electrode 131 and the second electrode 132; the power module 900 is disposed between the atomizing chamber 300 and the mouthpiece 820 in the horizontal direction D2, and the air exhaust passage 420 extends on one side of the power module 900.

In certain embodiments, the housing 800 further comprises a power supply chamber for housing the power module 900, thereby separating the power module 900 from the air admission passage 410 and the air exhaust passage 420.

It will be obvious to those skilled in the art that changes and modifications may be made, and therefore, the aim in the appended claims is to cover all such changes and modifications.

Claims

1. A heating core, comprising: wherein:

a heating element comprising a heating part;

a thermal and liquid conductive block comprising a first surface and a second surface disposed respectively on two opposite sides along a vertical direction, the first surface being configured to be in contact with an atomizing substance, and the heating part being disposed on the second surface; and

a first electrode and a second electrode, the heating part being disposed between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode;

the thermal and liquid conductive block is configured to transfer heat generated by the heating part to the atomizing substance and guide the atomizing substance from the first surface to the second surface; and

the heating part is configured to at least partially transform the atomizing substance guided to the second surface into an aerosol and allow the aerosol to leave the second surface from the heating part.

2. The heating core of claim 1, wherein the heating element further comprises a blocking part which is lamellar; the blocking part is attached to at least a portion of the second surface, thereby blocking the atomizing substance from passing through the blocking part in the vertical direction.

3. The heating core of claim 2, wherein the heating part comprises a first heating part and a second heating part; the blocking part comprises a first blocking part and a second blocking part; the first blocking part, the first heating part, the second blocking part and the second heating part are sequentially connected head to tail to form a closed annular layer.

4. The heating core of claim 3, wherein the second surface is circular and the closed annular layer is affixed to an outer edge of the second surface.

5. The heating core of claim 3, wherein the first surface projects outwards along the vertical direction.

6. The heating core of claim 1, wherein the heating part comprises reciprocating zigzag bends.

7. The heating core of claim 1, wherein an outer edge of the heating element comprises a fixed leg; and the heating element is securely connected to the thermal and liquid conductive block via the fixed leg.

8. The heating core of claim 7, wherein the fixed leg is disposed at an angle with respect to the outer edge of the heating element and is embedded in the thermal and liquid conductive block.

9. The heating core of claim 1, wherein the heating part has a resistance of 0.2-3 Ohm.

10. The heating core of claim 1, wherein the thermal and liquid conductive block comprises a plurality of capillary pores for transferring the atomizing substance between the first surface and the second surface.

11. An atomizing device, comprising:

the heating core of claim 1;

an accommodation chamber for storing the atomizing substance, wherein the first surface functions as a bottom wall of the accommodation chamber; and

an atomizing chamber, the heating part being exposed in the atomizing chamber such that the atomizing substance after being heated and atomized by the heating part leaves the second surface and enters the atomizing chamber.

12. The atomizing device of claim 11, wherein the atomizing chamber is disposed below the heating part in the vertical direction.

13. The atomizing device of claim 11, wherein the atomizing device further comprises an annular heat conduction wall which is a thin-walled structure around the accommodation chamber, and a lower end of the annular heat conduction wall along the vertical direction is in contact with the first surface.

14. The atomizing device of claim 13, wherein an auxiliary heating wall is disposed on an outer peripheral surface of the annular heat conduction wall.

15. The atomizing device of claim 14, wherein a passivation layer is disposed between the auxiliary heating wall and the annular heat conduction wall; and a control temperature of the auxiliary heating wall is lower than that of the heating part.

16. The atomizing device of claim 11, wherein the atomizing device further comprises a seal element; the seal element is secured to the second surface, and the seal element comprises a through slot corresponding to the heating part in position.

17. The atomizing device of claim 11, wherein the atomizing device further comprises an e-liquid collection recess; the e-liquid collection recess is disposed below the atomizing chamber in the vertical direction, and the e-liquid collection recess matches the heating element in terms of position and shape.

18. The atomizing device of claim 15, wherein the atomizing device further comprises a piece of e-liquid absorbent cotton configured to absorb the atomizing substance in the e-liquid collection recess.

19. The atomizing device of claim 11, wherein the atomizing device further comprises an air admission passage and an air exhaust passage; the air admission passage and the air exhaust passage communicate with a top of the atomizing chamber in the vertical direction.

20. The atomizing device of claim 19, wherein at least one e-liquid barrier is disposed in the air exhaust passage; at least a portion of the air exhaust passage extends along a horizontal direction of the atomizing device; the at least one e-liquid barrier is arranged side by side along the horizontal direction of the atomizing device, and protrudes in the vertical direction relative to the atomizing device.

21. The atomizing device of claim 20, wherein the heating part comprises a first heating part and a second heating part; the first heating part and the second heating part are symmetrically arranged about the horizontal direction.

22. The atomizing device of claim 11, wherein the atomizing device further comprises a housing extending at least partially in a horizontal direction; the housing comprises an air inlet and a mouthpiece respectively disposed at both ends of the housing in the horizontal direction; the accommodation chamber is disposed on one end of the housing away from the mouthpiece and the accommodation chamber comprises an opening in a direction back from the atomizing chamber; the air inlet, the air admission passage, the atomizing chamber, the air exhaust passage, and the mouthpiece are connected to one another in sequence; and the atomizing device further comprises a power module electrically connected to the first electrode and the second electrode.