CARTRIDGE AND ELECTRONIC CIGARETTE

Abstract

A cartridge and an electronic cigarette are provided. The cartridge includes an atomizer including a supporting base and an atomizing head installed in the supporting base; a liquid storage container installed on the supporting base, a liquid storage chamber being defined between the liquid storage container and the supporting base; a liquid pump configured for pumping e-liquid in the liquid storage chamber to the atomizing head; a constant pressure member installed in the supporting base and only allowing external air to flow into the liquid storage chamber in one direction. Through the arrangement of the constant pressure member, the air in the liquid storage chamber can be quickly replenished, so that the air pressure in the liquid storage chamber is balanced, and the piezoelectric pump can pump the e-liquid more smoothly.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of International Patent Application No. PCT/CN2020/078125, filed on Mar. 6, 2020, entitled “cartridge and electronic cigarette”, which claims priority to Chinese Patent Application Nos. 201910223781.3, 201910223770.5 and 201910224294.9, filed on Mar. 22, 2019. All of the aforementioned patent applications are hereby incorporated by reference in their entireties.

TECHNICAL HELD

The disclosure relates to the technical field of electronic cigarette, and more particularly, relates to a cartridge and an electronic cigarette capable of automatically supplying liquid.

BACKGROUND

At present, the liquid supply mode of the electronic cigarette is to provide a liquid storage member, and then the liquid storage member can provide the e-liquid required for atomization to the atomizer by manual or by suction using a liquid absorbing member. At the same time, some e-cigarettes are equipped with liquid pumps to automatically pump e-liquid into the atomizer. However, due to the fast start-up speed of the liquid pump, when the e-liquid in the liquid storage chamber is reduced, the air pressure in the liquid storage chamber decreases to cause suffocation in the liquid storage chamber. As a result, the working load of the piezoelectric pump is increased, thereby causing damage to the piezoelectric pump.

SUMMARY

Based on the above, it is necessary to provide a cartridge that can ensure smoother pumping of e-liquid in response to the above-mentioned problems.

It is also necessary to provide an electronic cigarette with the cartridge.

A cartridge includes:

an atomizer including a supporting base and an atomizing head installed in the supporting base;

a liquid storage container installed on the supporting base, a liquid storage chamber being provided between the liquid storage container and the supporting base;

a liquid pump configured for pumping e-liquid in the liquid storage chamber to the atomizing head; and

a constant pressure member installed in the supporting base and only allowing external air to flow into the liquid storage chamber in one direction.

In one embodiment, the supporting base is provided with a constant pressure hole in communication with the external air and the liquid storage chamber, the constant pressure member is installed in the constant pressure hole.

In one embodiment, the supporting base includes an atomizing seat and an atomizing bracket installed on the atomizing seat, the atomizing seat is provided with an air inlet hole in communication with the external environment, a mounting hole communicating the air inlet hole and the liquid storage chamber is provided through the atomizing bracket, the air inlet hole and the mounting hole together serve as the constant pressure hole.

In one embodiment, the constant pressure member is a one-way valve or a waterproof breathable membrane.

In one embodiment, an outer periphery of the supporting base is provided with an assembling portion, the liquid pump is installed in the assembling portion.

In one embodiment, the supporting base includes an atomizing bracket, the atomizing head is installed in the atomizing bracket; the atomizing bracket includes a top portion facing the user's mouth, a bottom portion facing away from the top portion, and a side portion connected between the top portion and the bottom portion;

the assembling portion is formed on the side portion of the atomizing bracket, the liquid pump is installed into the assembling portion and is located in the flow path of the e-liquid to serve as a part of the fluid passage communicating the liquid storage chamber and the atomizing head.

In one embodiment, the liquid pump includes a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; a liquid outlet in communication with the atomizing head is provided inside the atomizing bracket; an included angle between a central axis of the fluid passage between the liquid pumping port and the liquid outlet and a central axis of the atomizer is α, and 0°<α≤90°.

In one embodiment, the liquid pump includes a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; the liquid suction port and the liquid pumping port are both located on the same side of the pump body facing the atomizing head.

An electronic cigarette includes the above cartridge and a battery device configured for providing electric driving for the cartridge.

In the cartridge and the electronic cigarette of the present disclosure, since the liquid pump has a fast starting speed, when the e-liquid in the liquid storage chamber decreases, the air pressure in the liquid storage chamber decreases to cause suffocation in the liquid storage chamber, causing the working load of the piezoelectric pump to increase and accordingly causing damage to the piezoelectric pump. Through the arrangement of the constant pressure member, the air in the liquid storage chamber can be quickly replenished, so that the air pressure in the liquid storage chamber is balanced, and the piezoelectric pump can pump the e-liquid more smoothly.

A cartridge includes:

an atomizer including a supporting base and an atomizing head installed in the supporting base;

a liquid storage container installed on the supporting base, a liquid storage chamber being provided between the liquid storage container and the supporting base; and

a liquid pump configured for pumping e-liquid in the liquid storage chamber to the atomizing head;

wherein an outer periphery of the supporting base is provided with an assembling portion, and the liquid pump is installed in the assembling portion.

In one embodiment, the supporting base includes an atomizing bracket, the atomizing head is installed in the atomizing bracket; the atomizing bracket includes a top portion facing the user's mouth, a bottom portion facing away from the top portion, and a side portion connected between the top portion and the bottom portion;

the assembling portion is formed on the side portion of the atomizing bracket, the liquid pump is installed into the assembling portion and is located in the flow path of the e-liquid to serve as a part of the fluid passage communicating the liquid storage chamber and the atomizing head.

In one embodiment, the liquid pump includes a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; a liquid outlet in communication with the atomizing head is provided inside the atomizing bracket; an included angle between a central axis of the fluid passage between the liquid pumping port and the liquid outlet and a central axis of the atomizer is α, and 0°<α≤90°.

In one embodiment, the liquid pump includes a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; the liquid suction port and the liquid pumping port are both located on the same side of the pump body facing the atomizing head.

In one embodiment, the liquid pump is a piezoelectric pump.

In one embodiment, the supporting base includes an atomizing seat installed to the bottom portion of the atomizing bracket, the atomizing seat is provided with an air inlet hole in communication with the external environment, a mounting hole communicating the air inlet hole and the liquid storage chamber is provided through the atomizing bracket;

the cartridge further includes a constant pressure member, the constant pressure member is installed in the constant pressure hole and only allows external air to flow into the liquid storage chamber in one direction.

In one embodiment, the constant pressure member extends toward the top of the liquid storage chamber and into the air layer above the liquid storage chamber.

In one embodiment, the constant pressure member is a duckbill one-way valve.

In one embodiment, the atomizing head includes a liquid absorbing member and a heating member, the heating member is a porous ceramic heating member, and the liquid absorbing member is made of porous ceramic.

An electronic cigarette includes the above cartridge and a battery device configured for providing electric driving for the cartridge.

In the cartridge and the electronic cigarette of the present discourse; the liquid transfer between the liquid storage chamber and the atomizing head is performed by the liquid pump. The liquid pump can automatically supply e-liquid according to the consumption of the atomizing head, thereby effectively preventing liquid leakage and dry burning. At the same time, the liquid pump is installed into the outer periphery of the supporting base through the assembling portion, so that the liquid pump can be directly installed from the outside of the supporting base, which is convenient for assembly and disassembly.

BRIEF DESCRIPTION OF TUE DRAWINGS

FIG. 1 is a schematic structural diagram of a cartridge of an electronic cigarette according to one embodiment of the present disclosure;

FIG. 2 is an exploded schematic diagram of the cartridge of the electronic cigarette shown in FIG. 1;

FIG. 3 is a bottom view of the cartridge of the electronic cigarette shown in FIG. 1;

FIG. 4 is a cross-sectional view of the cartridge shown in FIG. 3 along the A-A direction;

FIG. 5 is a front view of the cartridge of the electronic cigarette shown in FIG. 1;

FIG. 6 is a cross-sectional view of the cartridge shown in FIG. 5 along the B-B direction.

Electronic cigarette	100	Cartridge	10
Atomizer	11	Supporting base	110
Assembling portion	1101	Atomizing bracket	1103
Top portion	1103A	Bottom portion	1103B
Side portion	1103C	Liquid inlet	1104A
Liquid outlet	1104b	Atomizing seat	1105
Air inlet opening	1107	Air inlet hole	1109
Mounting hole	1110	Atomizing head	112
Atomizing electrode	114	Liquid pump electrode	116
Fixing member	118	Liquid storage container	13
Liquid storage chamber	130	Liquid pump	15
Pump body	150	Liquid suction port	1501
Liquid pumping port	1503	Constant pressure member	17
Sealing ring	19	Liquid inlet sealing member	20
First opening	21	Second opening	23
Vent tube	132	Atomizing chamber	113
Smoking port	134	Communication hole	1112
Smoke outlet chamber	1114	Smoke guiding groove	1116
Third opening	25	Constant pressure hole	1108

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

In order to facilitate the understanding of the present disclosure, the present disclosure will be described in details with reference to the accompanying drawings. Preferred embodiments of the present disclosure are given in the accompanying drawings. However, the present disclosure can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make a more thorough and comprehensive understanding of the disclosed contents of the present disclosure.

It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be a centered element. When an element is considered to be “connected” to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms used herein in the description of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. The term “and/or” as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1, in an embodiment of the present disclosure, an electronic cigarette 100 includes a cartridge 10 and a battery device (not shown) for providing electric driving for the cartridge 10. Specifically, the e-liquid stored in the cartridge 10 can be heated by the electric driving of the battery device to generate smoke, and the smoke can be inhaled by the user.

Please refer to FIG. 2, the cartridge 10 includes an atomizer 11, a liquid storage container 13 and a liquid pump 15. Specifically, a liquid storage chamber 130 (as shown in FIG. 4) for storing e-liquid is formed in the liquid storage container 13, the liquid pump 15 is used to automatically pump the e-liquid in the liquid storage chamber 130 into the atomizer 11, and the e-liquid is heated by the battery device to form smoke for the user to inhale.

The atomizer 11 includes a supporting base 110 and an atomizing head 112. The supporting base 110 is configured to provide an installation foundation, and the outer periphery, of the supporting base 110 is provided with an assembling portion 1101 in communication with the outside. The liquid pump 15 is detachably installed in the assembling; portion 1101 and used for pumping e-liquid into the atomizing head 112. The liquid storage chamber 130 is defined between the liquid storage container 13 and the supporting base 110. The above-mentioned “outer periphery” refers to the outer surface of the supporting base 110 exposed to the external environment when it is not installed in the liquid storage container 13. The above-mentioned “assembling portion 1101” includes but is not limited to a notch, hole, groove, and the like.

Specifically, the supporting base 110 includes an atomizing bracket 1103 and an atomizing seat 1105. The atomizing bracket 1103 is installed on the atomizing seat 1105, and the atomizing head 112 is installed in the atomizing bracket 1103. It is understood that, in other embodiments not shown, the atomizing seat 1105 and the atomizing bracket 1103 are integrally formed.

The atomizing bracket 1103 includes a top portion 1103A facing the user's mouth, a bottom portion 1103B facing away from the top portion, and a side portion 1103C connected between the top portion 1103A and the bottom portion 1103B. The assembling portion 1101 is formed on the side portion 1103C of the atomizing bracket 1103. The liquid pump 15 is installed into the assembling portion 1101 from the side portion 1103C of the atomizing bracket 1103 and is located in the flow path of the e-liquid to serve as a part of the fluid passage communicating the liquid storage chamber 130 and the atomizing head 112. It is understood that, in other embodiments not shown, the assembling portion 1101 is formed on the top portion 1103A or the bottom portion 1103B of the atomizing bracket 1103. The liquid pump 15 is installed into the assembling portion 1101 from the top portion 1103A or from the bottom portion 1103B of the atomizing bracket 1103.

Specifically, the top portion 1103A of the atomizing bracket 1103 is provided with a liquid inlet 1104A in communication with the liquid storage chamber 130. A liquid outlet 1104B (as shown in FIG. 4) in communication with the atomizing head 112 is provided inside the atomizing bracket 1103. The channel between the liquid inlet 1104A and the liquid outlet 1104B is the fluid passage for the flowing of the e-liquid. When the liquid pump 15 is installed in the fluid passage between the liquid inlet 1104A and the liquid outlet 1104B, it can serve as a part of the fluid passage and provide a driving force for the flowing of the e-liquid at the same time.

In other words, the liquid pump 15 can be freely installed into the assembling portion 1101 from the side portion 1103C of the atomizing bracket 1103, which is easy to disassemble and assemble. At the same time, the liquid pump 15 serves as a part of the fluid passage, so that the e-liquid in the liquid storage chamber 130 can be automatically and timely supplied into the atomizing head 112, so as to avoid the occurrence of abnormal conditions such as dry burning of the atomizing head 112.

Specifically, an atomizing chamber 113 (as shown in FIG. 6) is formed between the atomizing bracket 1103 and the atomizing seat 1105, and the atomizing head 112 is at least partially received in the atomizing chamber 113. In this specific embodiment, the atomizing head 112 is arranged at the bottom portion 1103B of the atomizing bracket 1103, and the lower surface of the atomizing head 112 is used as the atomizing surface.

Please refer to FIG. 3 and FIG. 4, specifically, the liquid pump 15 includes a pump body 150, the pump body 150 is provided with a liquid suction port 1501 in communication with the liquid storage chamber 130 and a liquid pumping port 1503 in communication with the atomizing head 112. The liquid suction port 1501 and the liquid pumping port 1503 are both located on the same side of the pump body 50 facing the atomizing head 112. The included angle between the central axis of the fluid passage between the liquid pumping port 1503 and the liquid outlet 1104B and the central axis of the atomizer 11 is α, and 0°<α≤90° preferably, the included angle α between the central axis of the fluid passage between the liquid pumping port 1503 and the liquid outlet 1104B and the central axis of the atomizer 11 is 90°. That is to say, after the e-liquid in the liquid storage chamber 130 is pumped into the pump body 150 through the liquid suction port 1501 on the side facing the atomizing head 112, the e-liquid continues to be pumped out from the liquid pumping port 1503 on the side facing the atomizing head 112 and transferred to the atomizing head 112 (as shown by the arrow flow direction in FIG. 4). The pumping path from the liquid pumping port 1503 to the liquid outlet 1104B is simplified, which is beneficial to improve the response speed of the liquid pump 15 for pumping liquid. In this specific embodiment, the upper surface of the atomizing head 112 is at least partially received in the liquid outlet 1104B, and the upper surface of the atomizing head 112 serves as a liquid absorbing surface.

In this specific embodiment, due to the small size of the atomizer 11, the liquid pump 15 usually adopts a piezoelectric pump. Specifically, the piezoelectric pump is generally flat, and its bask principle is to use the inverse piezoelectric effect of the piezoelectric ceramic to deform the piezoelectric vibrator, and the volume of the pump cavity formed between the piezoelectric ceramic and the housing of the pump changes to achieve fluid output.

When the central axis of the fluid passage between the liquid pumping port 1503 and the liquid outlet 1104B and the central axis of the atomizer 11 are at an angle of 90°, the pipeline from the liquid pumping port 1503 to the liquid outlet 1104B is straight, and the pumping liquid has a fast response speed. On the other hand, the pipeline from the liquid pumping port 1503 to the liquid outlet 1104B is straight, which facilitates the simplification of the pipeline, prevents the pipeline from being blocked, and reduces the difficulty of pipeline design.

The atomizing head 112 includes a receiving part (not shown), the receiving part faces the liquid pumping port 1503, and the receiving part corresponds to the liquid outlet 1104B. The receiving part may be a heating member (not shown) or a liquid absorbing member (not shown). In this embodiment, considering that the liquid pump 15 has a relatively strong pressure when pumping e-liquid, the receiving part is made of a hard material, so as to prevent the atomizing head from failing and causing liquid leakage when the e-liquid with a relatively strong pressure hits against the receiving part if it is made of a soft material. Specifically, the atomizing head is a porous ceramic heating member, and the porous ceramic heating member is made of a hard material.

Please refer to FIG. 2 again, furthermore, the atomizer 11 further includes an atomizing electrode 114 and a liquid pump electrode 116. The atomizing electrode 114 is installed on the atomizing seat 1105 and at least partly extends into the atomizing bracket 1103 to be electrically connected to the atomizing head 112 installed in the atomizing bracket 1103, so that the atomizing head 112 and the battery device form an electric circuit for atomizing.

Similarly, the liquid pump electrode 116 is installed on the atomizing seat 1105, and one end of the liquid pump electrode 116 away from the atomizing seat 1105 extends into the atomizing bracket 1103, so as to be fixed to the atomizing bracket 1103 by a fixing member 118 and be electrically connected to the liquid pump 15 installed in the assembling portion 1101. It is understood that, in other embodiments not shown, the liquid pump electrode 116 is installed on the atomizing seat 1105, and one end of the liquid pump electrode 116 away from the atomizing seat 1105 extends into the atomizing bracket 1103, so as to be directly electrically connected to the liquid pump 15 installed in the assembling portion 1101.

In use, the e-liquid in the liquid storage chamber 130 is driven by the liquid pump 15 to be pumped into the fluid passage from the liquid inlet 1104A, sucked into the pump body 150 through the liquid suction port 1501, then pumped out through the liquid pumping port 1503, and finally flows out from the liquid outlet 1104E to the atomizing head 12 for heating and atomizing by the atomizing head 12.

Please refer to FIG. 2, FIG. 5 and FIG. 6 together, furthermore, the atomizing seat 1105 is provided with an air inlet opening 1107, and the air inlet opening 1107 is in communication with the external air and the atomizing chamber 113. The cartridge 10 further includes a vent tube 132, and the smoke generated in the atomizing chamber 113 is delivered to the user's mouth through the inner cavity of the vent tube 132. In this embodiment, the atomizing seat 1105 is provided with the air inlet opening 1107 at a position aligned with the atomizing head 112. A smoking port 134 is provided in one end of the liquid storage container 13 facing the user's mouth. The middle of the liquid storage container 13 is provided with the vent tube 132 aligned with the atomizing head 12. The inner cavity of the vent tube 132 is in communication with the smoking port 134. A communication hole 1112 is provided in the top portion 1103A of the atomizing bracket 1103, the lower end of the vent tube 132 is inserted into the communication hole 1112, and the inner cavity of the vent tube 132 is in communication with the communication hole 1112. A smoke outlet chamber 1114 is formed inside the atomizing bracket 1103. The communication hole 1112 is in communication with the smoke outlet chamber 1114. The side portion 1103C of the atomizing bracket 1103 is provided with a smoke guiding groove 1116. The smoke guiding groove 1116 communicates the atomizing chamber 113 and the smoke outlet chamber 1114. In other words, the air inlet opening 1107 is arranged below the atomizing head 112, and the vent tube 132 is arranged above the atomizing head 112. In this way, under the user's suction action, the external cold air flows through the air inlet opening 1107, the atomizing chamber 113, the smoke guiding groove 1116, the smoke outlet chamber 1114, the communication hole 1112 and the inner cavity of the ventilation tube 132 in sequence, and finally through the smoking port 134 to reach the mouth of the user (as shown by the arrow flow direction in FIG. 6). It is understood that, in other embodiments not shown, the liquid storage container 13 and the vent tube 132 are two independent parts or integrally formed.

The supporting base 110 is provided with a constant pressure hole 1108 in communication with the external air and the liquid storage chamber 130. Correspondingly, the cartridge 10 includes a constant pressure member 17, which is installed in the constant pressure hole 1108 and only allows external air to flow into the liquid storage chamber 130 in one direction. Specifically, the atomizing seat 1105 is provided with an air inlet hole 1109 in communication with the external environment, a mounting hole 1110 communicating the air inlet hole 1109 and the liquid storage chamber 130 is provided through the atomizing bracket 1103. The air inlet hole 1109 and the mounting hole 1110 together serve as the constant pressure hole 1108. The constant pressure member 17 can be a one-way valve or a waterproof breathable membrane, etc. In this embodiment, the constant pressure member 17 is a one-way valve, which is installed in the mounting hole 1110 and forms a one-way air flow channel that only allows external air to flow into the liquid storage chamber 130 in one direction.

In this specific embodiment, since the piezoelectric pump (i.e., the liquid pump 15) has a fast starting speed, when the e-liquid in the liquid storage chamber 130 decreases, the air pressure in the liquid storage chamber 130 decreases to cause suffocation in the liquid storage chamber 130, causing the working load of the piezoelectric pump to increase and accordingly causing damage to the piezoelectric pump. Through the arrangement of the constant pressure member 17, the air in the liquid storage chamber 130 can be quickly replenished, so that the air pressure in the liquid storage chamber 130 is balanced, and the piezoelectric pump can pump the e-liquid more smoothly.

During use, under the user's suction action, the external cold air flows to the atomizing head 112 through the air inlet opening 1107, so as to be mixed with the smoke generated by the heating of the atomizing head 112, and then passes through the gap between the atomizing bracket 1103 and the liquid storage container 13 and the vent tube 132 sequentially to reach the mouth of the user. At the same time; the external cold air also enters the liquid storage chamber 130 through the air inlet hole 1109 and the constant pressure member 17, so as to prevent the air pressure in the liquid storage chamber 130 from being reduced during the atomization process and avoid the phenomenon of suffocation.

Further, the one-way valve extends toward the top of the liquid storage chamber 130 and into the air layer above the liquid storage chamber 130, so that the air flowing through the one-way valve can quickly reach the air layer of the liquid storage chamber 130 to improve the response speed. Preferably, the one-way valve is a duckbill one-way valve.

In addition, the cartridge 10 further includes sealing rings 19, the sealing rings 19 are respectively sealed and arranged between the atomizing seat 1105 and the liquid storage container 13, and between the atomizing head 112 and the atomizing bracket 1103, so as to prevent the cartridge 10 from leaking of the e-liquid.

At the same time, the cartridge 10 further includes a liquid inlet sealing member 20, and the liquid inlet sealing member 20 is sealed and arranged on the top portion 1103A of the atomizing bracket 1103. Correspondingly, the liquid inlet sealing member 20 is provided with a first opening 21, a second opening 23 and a third opening 25 which are arranged at intervals. Specifically, the first opening 21 is in communication with the liquid storage chamber 130 and the inlet of the fluid passage to ensure that the e-liquid in the liquid storage chamber 130 can be pumped to the atomizing head 12 under the action of the liquid pump 15. The second opening 23 is in communication with the liquid storage chamber 130 and the mounting hole 1110 to ensure that the external air entering the constant pressure member 17 can be passed into the liquid storage chamber 130, to ensure the balance of the air pressure in the liquid storage chamber 130. The third opening 25 corresponds to the position of the communication hole 1112 to ensure air flowing between the communication hole 1112 and the inner cavity of the vent tube 132.

In the cartridge 10 of the present application, the liquid transfer between the liquid storage chamber 130 and the atomizing head 112 is performed by the liquid pump 15. The liquid pump 15 can automatically supply e-liquid according to the consumption of the atomizing head. 112, thereby effectively preventing liquid leakage and dry burning. At the same time, the liquid pump 15 is installed into the outer periphery of the supporting base 110 through the assembling portion 1101, so that the liquid pump 15 can be directly installed from the outside of the supporting base 110, which is convenient for assembly and disassembly. At the same time, the constant pressure member 17 can quickly replenish the air in the liquid storage chamber 130, so that the air pressure in the liquid storage chamber 130 is balanced, and the liquid is pumped smoothly.

The electronic cigarette 100 provided in the first embodiment of the present disclosure has all the technical features of the above-mentioned cartridge 10, so it has the same technical effects as the above-mentioned cartridge 10.

The above-mentioned embodiments merely represent several implementations of the present application, and the descriptions thereof are more specific and detailed, but they shall not be understood as a limitation on the scope of the present application. It should be noted that, for those of ordinary skill in the art, variations and improvements may still be made without departing from the concept of the present application, and all of which shall fall into the protection scope of the present application. Therefore, the scope of protection of the present application shall be subject to the appended claims.

Claims

1. A cartridge comprising:

an atomizer comprising a supporting base and an atomizing head installed in the supporting base;

a liquid storage container installed on the supporting base, a liquid storage chamber being provided between the liquid storage container and the supporting base;

a liquid pump configured for pumping e-liquid in the liquid storage chamber to the atomizing head; and

a constant pressure member installed in the supporting base and only allowing external air to flow into the liquid storage chamber in one direction.

2. The cartridge according to claim 1, wherein the supporting base is provided with a constant pressure hole in communication with the external air and the liquid storage chamber, the constant pressure member is installed in the constant pressure hole.

3. The cartridge according to claim 2, wherein the supporting base comprises an atomizing seat and an atomizing bracket installed on the atomizing seat, the atomizing seat is provided with an air inlet hole in communication with the external environment, a mounting hole communicating the air inlet hole and the liquid storage chamber is provided through the atomizing bracket, the air inlet hole and the mounting hole together serve as the constant pressure hole.

4. The cartridge according to claim 1, wherein the constant pressure member is a one-way valve or a waterproof breathable membrane.

5. The cartridge according to claim 1, wherein an outer periphery of the supporting base is provided with an assembling portion, the liquid pump is installed in the assembling portion.

6. The cartridge according to claim 5, wherein the supporting base comprises an atomizing bracket, the atomizing head is installed in the atomizing bracket; the atomizing bracket comprises a top portion facing the user's mouth, a bottom portion facing away from the top portion, and a side portion connected between the top portion and the bottom portion;

the assembling portion is formed on the side portion of the atomizing bracket, the liquid pump is installed into the assembling portion and is located in the flow path of the e-liquid to serve as a part of the fluid passage communicating the liquid storage chamber and the atomizing head.

7. The cartridge according to claim 1, wherein the liquid pump comprises a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; a liquid outlet in communication with the atomizing head is provided inside the atomizing bracket; an included angle between a central axis of the fluid passage between the liquid pumping port and the liquid outlet and a central axis of the atomizer is α, and 0°<α≤90°.

8. The cartridge according to claim 1, wherein the liquid pump comprises a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; the liquid suction port and the liquid pumping port are both located on the same side of the pump body facing the atomizing head.

9. An electronic cigarette comprising the cartridge according to claim 1 and a battery device configured for providing electric driving for the cartridge.

10. A cartridge comprising:

an atomizer comprising a supporting base and an atomizing head installed in e supporting base;

a liquid storage container installed on the supporting base, a liquid storage chamber being provided between the liquid storage container and the supporting base; and

a liquid pump configured for pumping e-liquid in the liquid storage chamber to the atomizing head;

wherein an outer periphery of the supporting base is provided with an assembling portion, and the liquid pump is installed in the assembling portion.

11. The cartridge according to claim 10, wherein the supporting base comprises an atomizing bracket, the atomizing head is installed in the atomizing bracket; the atomizing bracket comprises a top portion facing the user's mouth, a bottom portion facing away from the top portion, and a side portion connected between the top portion and the bottom portion;

the assembling portion is formed on the side portion of the atomizing bracket, the liquid pump is installed into the assembling portion and is located in the flow path of the e-liquid to serve as a part of the fluid passage communicating the liquid storage chamber and the atomizing head.

12. The cartridge according to claim 11, wherein the liquid pump comprises a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; a liquid outlet in communication with the atomizing head is provided inside the atomizing bracket; an included angle between a central axis of the fluid passage between the liquid pumping port and the liquid outlet and a central axis of the atomizer is α, and 0°<α≤90°.

13. The cartridge according to claim 10, wherein the liquid pump comprises a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; the liquid suction port and the liquid pumping port are both located on the same side of the pump body facing the atomizing head.

14. The cartridge according to claim 13, wherein the liquid pump is a piezoelectric pump.

15. The cartridge according to claim 11, wherein the supporting base comprises an atomizing seat installed to the bottom portion of the atomizing bracket, the atomizing seat is provided with an air inlet hole in communication with the external environment, a mounting hole communicating the air inlet hole and the liquid storage chamber is provided through the atomizing bracket;

the cartridge further comprises a constant pressure member, the constant pressure member is installed in the constant pressure hole and only allows external air to flow into the liquid storage chamber in one direction.

16. The cartridge according to claim 15, wherein the constant pressure member extends toward the top of the liquid storage chamber and into the air layer above the liquid storage chamber.

17. The cartridge according to claim 15, wherein the constant pressure member is a duckbill one-way valve.

18. The cartridge according to claim 10, wherein the atomizing head comprises a liquid absorbing member and a heating member, the heating member is a porous ceramic heating member, and the liquid absorbing member is made of porous ceramic.

19. An electronic cigarette comprising the cartridge according to claim 10 and a battery device configured for providing electric driving for the cartridge.