Cigarette cartridge and electronic cigarette using same

Abstract

The utility model discloses a smoke cartridge and an electronic cigarette using the same, the smoke cartridge comprises a smoke cartridge main body, an oil storage cavity is arranged in the smoke cartridge main body, an atomization channel and a mist discharging channel which correspond to each other are arranged in the oil storage cavity, and oil absorption cotton is wrapped on the channel walls of the atomization channel and the mist discharging channel. A pressure relief part capable of enabling gas to enter and exit from the oil storage cavity is formed between the atomization channel and the mist discharging channel, a heating core is arranged in the atomization channel, a drainage structure is arranged in the mist discharging channel and comprises a plurality of drainage grooves and drainage bodies, one ends of the drainage bodies correspond to the drainage grooves, and the other ends of the drainage bodies stretch into the oil storage cavity through the pressure relief part to abut against the oil absorption cotton. The smoke cartridge is used in the electronic cigarette, condensate generated in the mist discharging channel can be drained into the oil absorption cotton through the drainage structure, the condensate is prevented from flowing back to the atomization channel and being absorbed by the heating core to fade the smoke taste or being sucked into the mouth of a user during smoking, air pressure balance in the oil storage cavity can be maintained through the pressure relief part, and the smoke quality is improved. Tobacco tar is prevented from seeping out of the tar storage cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic cigarettes, in particular to a cartridge and an electronic cigarette using the same. Background Art

[0002] At present, for the existing electronic cigarette, when the smoke generated by heating the e-liquid by the heating core in the atomization channel is discharged from the cartridge through the mist discharge channel, part of the smoke will be liquefied to form condensate and adhere to the inner wall of the mist discharge channel. After the condensate accumulates, it will not only be inhaled into the user's mouth during smoking, causing discomfort to the user, but also flow back to the atomization channel along the mist discharge channel under the action of gravity and be absorbed by the heating core, resulting in the e-liquid absorbed in the heating core being diluted by the condensate, thus weakening the taste of the smoke. Moreover, when the cartridge is stored in a high or low temperature environment, the gas in the oil storage cavity expands to generate high pressure. If the high pressure in the oil storage cavity cannot be discharged to maintain the pressure balance, the e-liquid will leak out of the oil storage cavity. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a cartridge and an electronic cigarette using the same. By designing a drainage structure and a pressure relief part in the cartridge, the problems in the existing electronic cigarette are solved, that is, the condensate will be inhaled into the user's mouth, causing discomfort, the condensate will flow back and dilute the e-liquid absorbed in the atomization core, thus weakening the taste of the smoke, and the high pressure in the oil storage cavity cannot be discharged, resulting in oil leakage.

[0004] The first aspect of the embodiment of the utility model provides a cartridge, which includes a cartridge body. A storage cavity is arranged in the cartridge body. A corresponding atomization channel and a mist discharge channel are arranged in the storage cavity, and an oil absorption cotton is wrapped on the channel walls of the atomization channel and the mist discharge channel. A pressure relief part for gas to enter and exit the storage cavity is formed between the atomization channel and the mist discharge channel. A heating core is arranged in the atomization channel, and a drainage structure is arranged in the mist discharge channel. The drainage structure includes a plurality of drainage grooves and a drainage body. One end of the drainage body corresponds to the drainage groove, and the other end of the drainage body extends into the storage cavity through the pressure relief part and abuts against the oil absorption cotton.

[0005] As an implementation manner, the width of the drainage groove gradually decreases from top to bottom in the mist discharge channel, and the maximum width of the drainage groove is 0.4 mm, and the minimum width of the drainage groove is 0.1 mm.

[0006] As an implementation manner, the pressure relief part is formed by an interstitial space and / or a through hole.

[0007] As an implementation manner, the drainage structure further includes a plurality of drainage channels. One end of the drainage channel is communicated with the drainage groove, and the other end of the drainage channel is blocked by the oil absorption cotton.

[0008] As an implementation manner, the cartridge body includes an exhaust pipe, a mist exhaust channel is formed in the exhaust pipe, the drainage groove is arranged on the inner wall of the exhaust pipe, and one end of the drainage groove extends to the top end of the exhaust pipe, and the other end of the drainage groove extends to the bottom end of the exhaust pipe. One end of the fluid guide body is connected to a position corresponding to the drainage groove at the bottom end of the exhaust pipe, and the drainage channel penetrates through the fluid guide body, so that one end of the drainage channel is communicated with the drainage groove.

[0009] As an implementation manner, the cartridge body further includes an oil storage pipe and an atomization pipe. An oil storage cavity is formed in the oil storage pipe. The atomization pipe and the exhaust pipe are arranged in the oil storage pipe. The exhaust pipe is located above the atomization pipe, and the exhaust pipe and the atomization pipe are both on the same vertical line. An atomization channel is formed in the atomization pipe, and a heating core is arranged in the atomization pipe. There is a gap space between the top end of the atomization pipe and the bottom end of the exhaust pipe, and the gap space serves as the pressure relief part. The other end of the fluid guide body extends into the oil storage cavity through the gap space.

[0010] As an implementation manner, the oil absorption cotton is also arranged in the oil storage pipe. The pipe walls of the exhaust pipe and the atomization pipe serve as the channel walls of the mist exhaust channel and the atomization channel. The oil absorption cotton wraps around the pipe walls of the exhaust pipe and the atomization pipe, so that the other end of the fluid guide body abuts against the oil absorption cotton, and the other end of the drainage channel is blocked by the oil absorption cotton; a plurality of oil inlet holes are formed in the pipe wall of the atomization pipe, and both ends of the heating core extend into the oil storage cavity through the oil inlet holes and abut against the oil absorption cotton.

[0011] As an implementation manner, the cartridge body further includes a first oil sealing member and a second oil sealing member. The first oil sealing member is arranged at the top end of the oil storage pipe, and the second oil sealing member is arranged at the bottom end of the oil storage pipe. A smoke outlet channel is formed in the first oil sealing member, and the upper end of the exhaust pipe is inserted into the smoke outlet channel, so that the mist exhaust channel is communicated with the smoke outlet channel. An air inlet channel is formed in the second oil sealing member, and the lower end of the atomization pipe is inserted into the air inlet channel, so that the atomization channel is communicated with the air inlet channel.

[0012] The second aspect of the embodiments of the present invention provides an electronic cigarette, which includes a power supply main body and the cartridge as described above. The cartridge body is arranged in the power supply main body. A power control component for supplying power to the cartridge body is further arranged in the power supply main body. A suction nozzle for smoking is arranged at the top end of the power supply main body, and a smoking channel communicated with the mist exhaust channel is formed in the suction nozzle.

[0013] As an implementation manner, the power control component includes a battery and a control board. The battery is electrically connected to the control board, and the control board is electrically connected to the heating core. An air inlet hole communicating with the air inlet channel of the cartridge body is opened at the bottom end of the power supply main body.

[0014] Implementing the cartridge of the present invention and the electronic cigarette using the same has the following beneficial effects: For the cartridge of the present invention and the electronic cigarette using the same, by designing a drainage structure, the condensate generated in the mist discharge channel can be drained into the oil absorption cotton and absorbed, which can prevent the condensate from flowing back into the atomization channel and being absorbed by the heating core to dilute the smoke flavor or being sucked into the user's mouth during smoking, causing discomfort. By designing a pressure relief part, the air pressure balance in the oil storage cavity can be maintained, preventing the e-liquid from leaking out of the oil storage cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be described in detail below with reference to the drawings to make the above advantages of the present invention more clear. Among them,

[0016] Figure 1 is an exploded view of the cartridge body of the present invention;

[0017] Figure 2 is a three-dimensional schematic diagram of the cartridge body of the present invention;

[0018] Figure 3 is a front sectional view of the cartridge body of the present invention;

[0019] Figure 4 is a side sectional view of the cartridge body of the present invention;

[0020] Figure 5 is a schematic diagram of the mist discharge pipe structure of the cartridge body of the present invention;

[0021] Figure 6 is an internal structure schematic diagram of the electronic cigarette of the present invention;

[0022] Figure 7 is an air flow direction diagram when the electronic cigarette of the present invention is working;

[0023] Figure 8 is a condensate flow direction diagram of the electronic cigarette of the present invention;

[0024] Figure 9 is an air pressure direction diagram when the electronic cigarette of the present invention is relieving pressure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings and embodiments, so as to fully understand how the present utility model uses technical means to solve technical problems and achieve the implementation process of technical effects and implement accordingly. It should be noted that as long as there is no conflict, each embodiment in the present utility model and each feature in each embodiment can be combined with each other, and the formed technical solutions are all within the protection scope of the present utility model.

[0026] It should be noted that a large number of technical features are recorded in the description of this application, which are distributed in various technical solutions. If all possible combinations of technical features (i.e., technical solutions) of this application are listed, the description will be too long. To avoid this problem, each technical feature disclosed in the above-mentioned utility model content of this application, each technical feature disclosed in the following embodiments and examples, and each technical feature disclosed in the accompanying drawings can be freely combined with each other to form various new technical solutions (these technical solutions are all regarded as having been recorded in this specification), unless the combination of such technical features is technically infeasible. For example, in one example, features A+B+C are disclosed, and in another example, features A+B+D+E are disclosed. Features C and D are equivalent technical means that play the same role, and only one of them can be used technically and they cannot be used simultaneously. Feature E can be combined with feature C technically. Then, the solution of A+B+C+D should not be regarded as having been recorded because it is technically infeasible, and the solution of A+B+C+E should be regarded as having been recorded.

[0027] As Figures 1-5 shown, the present utility model provides an atomizer cartridge, which includes an atomizer cartridge body 8. The atomizer cartridge body 8 has an oil storage cavity 201. A corresponding atomization channel 501 and a mist discharge channel 401 are provided in the oil storage cavity 201, and an oil absorption cotton 3 is wrapped on the channel walls of the atomization channel 501 and the mist discharge channel 401. A pressure relief part for allowing gas to enter and exit the oil storage cavity 201 is formed between the atomization channel 501 and the mist discharge channel 401. A heating core 6 is provided in the atomization channel 501, and a drainage structure 802 is provided in the mist discharge channel 401. The drainage structure 802 includes a plurality of drainage grooves 402 and a drainage body 403. One end of the drainage body 403 corresponds to the drainage groove 402, and the other end of the drainage body 403 extends into the oil storage cavity 201 through the pressure relief part and abuts against the oil absorption cotton 3. It should be noted that by designing the drainage structure 802, the condensate generated in the mist discharge channel 401 can be drained into the oil absorption cotton 3 to prevent the condensate from flowing back into the atomization channel 501 and being absorbed by the heating core 6 to dilute the taste of the smoke or being inhaled into the user's mouth when smoking. By designing the pressure relief part, the air pressure balance in the oil storage cavity 201 can be maintained to prevent the e-liquid from leaking out of the oil storage cavity 201. Among them, in this embodiment, both the drainage body 403 and the drainage grooves 402 are preferably four.

[0028] In some embodiments, the drainage groove 402 gradually decreases in width from top to bottom within the mist exhaust passage 401, and the maximum width of the drainage groove 402 is 0.4 mm, and the minimum width of the drainage groove 402 is 0.1 mm. It should be noted that the upper end of the mist exhaust passage 401 is closest to the atmosphere, and the most condensate is formed when the smoke liquefies when passing through the upper end of the mist exhaust passage 401. The large width at the upper end of the drainage groove 402 can collect a large amount of condensate, and then the condensate droplets can be gradually reduced when flowing back along the drainage groove 402, and then are drained into the oil-absorbing cotton 3 by the drainage body 403 and absorbed, preventing the droplets from being too large and directly dripping into the atomization passage 501 under the action of gravity. Among them, the maximum width of the drainage groove 402 is 0.4 mm, and the minimum width of the drainage groove 402 is 0.1 mm, which can achieve the fastest drainage speed of the condensate, the largest drainage volume, and the best drainage effect.

[0029] In some embodiments, the pressure relief portion is formed by the clearance space 801 and / or the through hole. Among them, in this embodiment, the pressure relief portion preferably adopts the clearance space 801, which has a simple structure and does not require separate design. It can be formed after the cartridge body 8 is assembled, and has the best pressure relief effect.

[0030] In some embodiments, the drainage structure 802 further includes a plurality of drainage channels 404. One end of the drainage channel 404 is communicated with the drainage groove 402, and the other end of the drainage channel 404 is blocked by the oil-absorbing cotton 3. It should be noted that when the amount of drained condensate is large, the condensate can not only be drained into the oil-absorbing cotton 3 through the drainage body 403, but also be drained into the oil-absorbing cotton 3 through the drainage channel 404. Among them, the drainage channel 404 in this embodiment is also preferably four.

[0031] In some embodiments, the cartridge body 8 includes a smoke exhaust pipe 4. A mist exhaust passage 401 is formed inside the smoke exhaust pipe 4. The drainage groove 402 is provided on the inner wall of the smoke exhaust pipe 4, and one end of the drainage groove 402 extends to the top end of the smoke exhaust pipe 4, and the other end of the drainage groove 402 extends to the bottom end of the smoke exhaust pipe 4. One end of the drainage body 403 is connected to a position corresponding to the drainage groove 402 at the bottom end of the smoke exhaust pipe 4. The drainage channel 404 penetrates through the drainage body 403, so that one end of the drainage channel 404 is communicated with the drainage groove 402. Among them, the drainage groove 402 is opened on the inner wall of the smoke exhaust pipe 4 by a broaching process with a hook tool, or can also be opened on the inner wall of the smoke exhaust pipe 4 by a mechanical stamping process. The drainage channel 404 and the drainage body 403 are integrally formed by an in-mold casting process, and the drainage body 403 is welded and connected to the bottom end of the smoke exhaust pipe 4 by a cold welding process.

[0032] In some embodiments, the cartridge body 8 further includes an oil storage tube 2 and an atomization tube 5. An oil storage cavity 201 is formed in the oil storage tube 2. The atomization tube 5 and the smoke exhaust tube 4 are arranged in the oil storage tube 2. The smoke exhaust tube 4 is located above the atomization tube 5, and both the smoke exhaust tube 4 and the atomization tube 5 are on the same vertical line. An atomization channel 501 is formed in the atomization tube 5. The heating core 6 is arranged in the atomization tube 5. There is a clearance space 801 between the top end of the atomization tube 5 and the bottom end of the smoke exhaust tube 4. The clearance space 801 serves as a pressure relief part. The other end of the guiding fluid 403 extends into the oil storage cavity 201 through the clearance space 801. It should be noted that the oil storage cavity 201 is used to store e-liquid, the atomization tube 5 is used to accommodate the heating core 6, and the heating core 6 is used to heat the e-liquid in the oil storage cavity 201 to generate smoke. Among them, the smoke exhaust tube 4 is located above the atomization tube 5, and both the smoke exhaust tube 4 and the atomization tube 5 are on the same vertical line, which can make the smoke exhaust tube 4 and the atomization tube 5 correspond precisely and make the atomization channel 501 communicate with the mist exhaust channel 401, so that the smoke generated by the heating core 6 heating the e-liquid can enter the mist exhaust channel 401 from the atomization channel 501.

[0033] In some embodiments, the absorbent cotton 3 is also arranged in the oil storage tube 2. The tube walls of the smoke exhaust tube 4 and the atomization tube 5 serve as the channel walls of the mist exhaust channel 401 and the atomization channel 501. The absorbent cotton 3 wraps around the tube walls of the smoke exhaust tube 4 and the atomization tube 5, so that the other end of the guiding fluid 403 abuts against the absorbent cotton 3, and the other end of the drainage channel 404 is blocked by the absorbent cotton 3; a plurality of oil inlet holes 502 are formed in the tube wall of the atomization tube 5. Both ends of the heating core 6 extend into the oil storage cavity 201 through the oil inlet holes 502 and abut against the absorbent cotton 3. Among them, the absorbent cotton 3 is used to absorb and lock the e-liquid in the oil storage cavity 201 to prevent the e-liquid from flowing in the oil storage cavity 201 and entering the atomization channel 501 through the clearance space 801 to cause oil leakage. Among them, both ends of the heating core 6 extend into the oil storage cavity 201 through the oil inlet holes 502 and abut against the absorbent cotton 3. The e-liquid absorbed by the absorbent cotton 3 can enter the heating core 6 through both ends of the heating core 6 for heating and atomization. Among them, when the heating core 6 is heating or the cartridge body 8 is stored in a high-temperature environment, the air in the oil storage cavity 201 will expand to generate high-pressure gas. These high-pressure gases can be discharged into the mist exhaust channel 401 through the clearance space 801 between the top end of the atomization tube 5 and the bottom end of the smoke exhaust tube 4, and then discharged from the cartridge body 8 to maintain the air pressure balance in the oil storage cavity 201 and prevent the air pressure in the oil storage cavity 201 from being too high, resulting in the e-liquid leaking from the oil storage cavity 201 out of the cartridge.

[0034] In some embodiments, the cartridge body 8 further includes a first oil-sealing member 1 and a second oil-sealing member 7. The first oil-sealing member 1 is provided at the top end of the oil storage tube 2, and the second oil-sealing member 7 is provided at the bottom end of the oil storage tube 2. An air outlet channel 101 is formed in the first oil-sealing member 1. The upper end of the smoke exhaust pipe 4 is inserted into the air outlet channel 101, so that the mist exhaust channel 401 is communicated with the air outlet channel 101. An air inlet channel 701 is formed in the second oil-sealing member 7. The lower end of the atomizing tube 5 is inserted into the air inlet channel 701, so that the atomizing channel 501 is communicated with the air inlet channel 701. Wherein, both the first oil-sealing member 1 and the second oil-sealing member 7 are made of silica gel material, with good sealing performance, and are respectively used to seal the top and bottom ends of the oil storage cavity 201. The air outlet channel 101 is used for the smoke to discharge from the cartridge body 8, and is also used for connecting and positioning the smoke exhaust pipe 4. The air outlet channel 101 is used for admitting air into the atomizing channel 501 and then driving the smoke to discharge from the cartridge body 8, and is also used for connecting and positioning the atomizing tube 5.

[0035] As Figure 6 shown, the present utility model further provides an electronic cigarette, which includes a power supply main body 9 and the cartridge as described above. The cartridge body 8 is arranged in the power supply main body 9. A power supply control component 906 for supplying power to the cartridge body 8 is further arranged in the power supply main body 9. A mouthpiece 903 for smoking is arranged at the top end of the power supply main body 9. A smoking channel 904 communicated with the mist exhaust channel 401 is formed in the mouthpiece 903. Wherein, the power supply control component 906 is used for supplying power to the cartridge body 8 to atomize the e-liquid. The mouthpiece 903 is used for holding in the mouth to smoke. The smoking channel 904 is used for sucking the smoke generated by the cartridge body 8 into the mouth and then inhaling.

[0036] In some embodiments, the power supply control component 906 includes a battery 901 and a control board 902. The battery 901 is electrically connected to the control board 902, and the control board 902 is electrically connected to the heating core 6. An air inlet hole 905 communicated with the air inlet channel 701 of the cartridge body 8 is formed at the bottom end of the power supply main body 9. Wherein, the battery 901 is used for supplying power to the control board 902 to activate its electronic control function. The control board 902 is used for supplying power to the heating core 6 to make it heat and heat the e-liquid. The air inlet hole 905 is used for the air flow to enter when smoking.

[0037] The following is a detailed description through preferred embodiments.

[0038] As Figures 1-6As shown in the figure, the electronic cigarette of the present utility model includes: a power supply main body 9 and a cartridge main body 8. The cartridge main body 8 includes: a first oil-sealing member 1, an oil storage tube 2, an oil-absorbing cotton 3, a smoke exhaust tube 4, an atomization tube 5, a heating core 6, and a second oil-sealing member 7. Among them, an oil storage cavity 201 is formed in the oil storage tube 2 for storing e-liquid. The atomization tube 5 and the smoke exhaust tube 4 are installed in the oil storage cavity 201 of the oil storage tube 2 to isolate the e-liquid. The smoke exhaust tube 4 is located above the atomization tube 5, and both the smoke exhaust tube 4 and the atomization tube 5 are on the same vertical line. There is a gap space 801 between the top end of the atomization tube 5 and the bottom end of the smoke exhaust tube 4 for pressure relief. A mist discharge channel 401 is formed in the smoke exhaust tube 4 for discharging smoke. An atomization channel 501 is formed in the atomization tube 5 for accommodating the heating core 6. The heating core 6 is installed in the atomization channel 501 of the atomization tube 5 for heating the e-liquid in the oil storage cavity 201 to generate smoke. Four drainage grooves 402 are provided on the inner wall of the smoke exhaust tube 4 for draining condensate, and the upper end of the drainage groove 402 extends to the top end of the smoke exhaust tube 4, and the lower end of the drainage groove 402 extends to the top end of the smoke exhaust tube 4. At the position corresponding to the four drainage grooves 402 at the bottom end of the smoke exhaust tube 4, four fluid guides 403 are provided for draining condensate as well. Each fluid guide 403 is provided with a drainage channel 404 communicating with the corresponding drainage groove 402 for draining condensate. The oil-absorbing cotton 3 is also installed in the oil storage tube 2 for absorbing the e-liquid in the oil storage cavity 201, and the oil-absorbing cotton 3 wraps around the tube walls of the smoke exhaust tube 4 and the atomization tube 5. The lower end of the fluid guide 403 extends into the oil storage cavity 201 through the gap space 801 and abuts against the oil-absorbing cotton 3 for draining condensate into the oil-absorbing cotton 3, and the oil-absorbing cotton 3 blocks the lower end of the drainage channel 404. Four oil inlet holes 502 are provided on the tube wall of the atomization tube 5. Both ends of the heating core 6 extend into the oil storage cavity 201 through two of the oil inlet holes 502 and abut against the oil-absorbing cotton 3 for absorbing e-liquid from the oil-absorbing cotton 3 for heating. The first oil-sealing member 1 is installed at the top end of the oil storage tube 2 for sealing the top end of the oil storage cavity 201. The second oil-sealing member 7 is installed at the bottom end of the oil storage tube 2 for sealing the bottom end of the oil storage cavity 201. A smoke outlet channel 101 is provided on the first oil-sealing member 1 for discharging smoke. The upper end of the smoke exhaust tube 4 is inserted into the smoke outlet channel 101 for connection, so that the mist discharge channel 401 is communicated with the smoke outlet channel 101. An air inlet channel 701 is provided on the second oil-sealing member 7 for air intake. The lower end of the atomization tube 5 is inserted into the air inlet channel 701 for connection, so that the atomization channel 501 is communicated with the air inlet channel 701. All components are combined and cooperate with each other to form the cartridge main body 8.

[0039] Among them, the cartridge body 8 is installed in the power supply body 9. The top end of the power supply body 9 is provided with a mouthpiece 903 for holding in the mouth to smoke. A smoking channel 904 communicating with the mist discharge channel 401 is opened in the mouthpiece 903 for sucking the smoke into the mouth. A battery 901 and a control board 902 are also provided in the power supply body 9. The battery 901 is electrically connected to the control board 902 to supply power to the control board 902 to activate its electronic control function. The control board 902 is electrically connected to the heating core 6 to supply power to the heating core 6 to make it heat up to heat the e-liquid. An air inlet hole 905 communicating with the air inlet channel 701 of the cartridge body 8 is opened at the bottom end of the power supply body 9 for air flow to enter.

[0040] As Figure 7 shown, in a specific embodiment of the present invention, a specific implementation description of the air flow direction when the electronic cigarette is working is as follows. When smoking with the mouthpiece 903 for mouth inhalation, the external air flow can enter the power supply body 9 from the air inlet hole 905, then enter the atomization channel 501 of the atomization tube 5 through the air inlet channel 701, and then drive the smoke generated by the heating core 6 heating the e-liquid to be discharged into the mist discharge channel 401 of the smoke exhaust pipe 4, and then enter the user's mouth through the smoke outlet channel 101 from the smoking channel 904 to be inhaled.

[0041] As Figure 8 shown, in a specific embodiment of the present invention, a specific implementation description of the condensate flow direction when the electronic cigarette is working is as follows. When the smoke is discharged from the smoking channel 904, part of it will liquefy into condensate when encountering cold air. The condensate will flow back into the mist discharge channel 401 under the action of gravity, and then be drained to the fluid guide 403 at the lower end through the four drainage grooves 402. Then the condensate will be drained into the oil absorption cotton 3 again through the fluid guide 403 and the drainage channel 404 to be absorbed, so as to prevent the condensate from flowing back into the atomization channel 501 to be absorbed by the heating core 6 to dilute the smoke flavor or being inhaled into the user's mouth during smoking, causing discomfort.

[0042] As Figure 9 shown, in a specific embodiment of the present invention, a specific implementation description of the air pressure direction in the oil storage cavity 201 of the electronic cigarette is as follows. When the electronic cigarette is stored in a high-temperature environment and the heating core 6 generates heat, the air in the oil storage cavity 201 will expand to generate high-pressure gas. These high-pressure gases can be discharged into the mist discharge channel 401 through the gap space 801 between the top end of the atomization tube 5 and the bottom end of the smoke exhaust pipe 4, and then discharged from the smoking channel 904 through the smoke outlet channel 101 to maintain the air pressure balance in the oil storage cavity 201 and prevent the air pressure in the oil storage cavity 201 from being too high, resulting in the e-liquid leaking out of the cartridge from the oil storage cavity 201.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cigarette cartridge, characterized in that: The invention comprises a cigarette cartridge body, wherein the cigarette cartridge body has an oil storage cavity, wherein the oil storage cavity is provided with a corresponding atomization channel and a mist exhaust channel, and oil-absorbing cotton wrapped on the channel walls of the atomization channel and the mist exhaust channel, wherein a pressure relief portion for allowing gas to enter and exit the oil storage cavity is formed between the atomization channel and the mist exhaust channel, wherein a heating core is provided in the atomization channel, and wherein a drainage structure is provided in the mist exhaust channel, wherein the drainage structure comprises a plurality of drainage grooves and a drainage body, wherein one end of the drainage body corresponds to the drainage groove, and the other end of the drainage body extends into the oil storage cavity through the pressure relief portion and abuts against the oil-absorbing cotton.

2. The cigarette cartridge according to claim 1, characterized in that: The width of the drainage groove gradually decreases from top to bottom in the demisting channel, and the maximum width of the drainage groove is 0.4 mm, and the minimum width of the drainage groove is 0.1 mm.

3. The cigarette cartridge according to claim 1, characterized in that: The pressure relief portion is formed by a gap space and / or a through hole.

4. The cigarette cartridge according to claim 1, characterized in that: The drainage structure further comprises a plurality of drainage channels, one end of each drainage channel is connected to the drainage groove, and the other end of each drainage channel is blocked by the oil-absorbing cotton.

5. The cigarette cartridge according to claim 4, characterized in that: The smoke bomb body includes a smoke exhaust pipe, the mist exhaust channel is formed in the smoke exhaust pipe, the drainage groove is arranged on the inner wall of the smoke exhaust pipe, and one end of the drainage groove extends to the top of the smoke exhaust pipe, and the other end of the drainage groove extends to the bottom of the smoke exhaust pipe, one end of the drainage body is connected to the position at the bottom of the smoke exhaust pipe corresponding to the drainage groove, and the drainage channel runs through the drainage body, so that one end of the drainage channel is connected to the drainage groove.

6. The cigarette cartridge according to claim 5, characterized in that: The cigarette cartridge body also includes an oil storage tube and an atomization tube. The oil storage tube forms the oil storage cavity. The atomization tube and the smoke exhaust tube are arranged on the oil storage tube. The smoke exhaust tube is located above the atomization tube, and the smoke exhaust tube and the atomization tube are located on the same vertical line. The atomization channel is formed in the atomization tube. The heating core is arranged in the atomization tube. There is a gap space between the top end of the atomization tube and the bottom end of the smoke exhaust tube. The gap space serves as the pressure relief part. The other end of the guide body extends into the oil storage cavity through the gap space.

7. The cigarette cartridge according to claim 6, characterized in that: The oil-absorbing cotton is also arranged in the oil storage pipe, and the tube walls of the smoke exhaust pipe and the atomization pipe serve as the channel walls of the mist exhaust channel and the atomization channel. The oil-absorbing cotton is wrapped on the tube walls of the smoke exhaust pipe and the atomization pipe, so that the other end of the drainage body abuts against the oil-absorbing cotton, and the other end of the drainage channel is blocked by the oil-absorbing cotton; a plurality of oil inlet holes are opened on the tube wall of the atomization pipe, and the two ends of the heating core extend into the oil storage cavity through the oil inlet holes and abut against the oil-absorbing cotton.

8. The cigarette cartridge according to claim 6, characterized in that: The cigarette cartridge body also includes a first oil seal and a second oil seal, the first oil seal is arranged at the top of the oil storage tube, and the second oil seal is arranged at the bottom of the oil storage tube, the first oil seal is provided with a smoke outlet channel, the upper end of the smoke exhaust pipe is inserted into the smoke outlet channel, so that the mist exhaust channel is connected to the smoke outlet channel, and the second oil seal is provided with an air intake channel, the lower end of the atomization pipe is inserted into the air intake channel, so that the atomization channel is connected to the air intake channel.

9. An electronic cigarette, characterized in that: It comprises a power supply body and a cigarette cartridge as claimed in any one of claims 1 to 8, wherein the cigarette cartridge body is arranged inside the power supply body, and a power control component for supplying power to the cigarette cartridge body is also arranged inside the power supply body, and a suction nozzle for smoking is arranged at the top of the power supply body, and a smoking channel connected to the demisting channel is opened in the suction nozzle.

10. The electronic cigarette according to claim 9, characterized in that: The power control component includes a battery and a control board, the battery is electrically connected to the control board, the control board is electrically connected to the heating core, and an air inlet hole communicating with the air inlet channel of the cigarette cartridge body is provided at the bottom of the power supply body.

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