Negative pressure type tobacco tar supply electronic cigarette

Abstract

The utility model relates to the technical field of electronic cigarettes, in particular to a negative pressure type tobacco tar supply electronic cigarette which comprises an upper shell and a lower shell, an upper installation base and a lower installation base are arranged in the lower shell, a cavity is formed in the upper installation base, a tar bin is defined by the top of the lower installation base and the inner wall of the cavity jointly, and an atomizer is arranged in the tar bin. An oil bottle is arranged in the upper shell, a bottleneck is formed at the bottom of the oil bottle, a mounting groove allowing the bottleneck to be embedded is formed in the top of the upper mounting seat, a plurality of oil guide holes communicated with the oil bin are formed in the bottom in the mounting groove, and the oil bottle is communicated with the oil bin through the oil guide holes; a plurality of oil guide columns extending upwards are formed at the top of the lower mounting seat and penetrate through the different oil guide holes to be arranged in the bottle neck; according to the oil supply device, oil is automatically supplied under the action of negative pressure during suction, air pressure is recovered and oil supply is stopped when suction is stopped, automatic oil supply treatment is achieved, the oil leakage phenomenon is effectively prevented through the design, and the safety of equipment and the use experience of a user are ensured.

Description

Technical Field

[0001] This utility model relates to the field of electronic cigarette technology, and in particular to an electronic cigarette with negative pressure e-liquid supply. Background Technology

[0002] As a substitute for traditional cigarettes, the core function of e-cigarettes is to produce vapor through atomized e-liquid for users to inhale. Currently, most mainstream e-cigarettes on the market adopt an open-tank design or a gravity-feed system, both of which have significant technical flaws. In open-tank designs, the e-liquid is in direct contact with the atomizer. When the device is tilted, inverted, or subjected to external impact, the e-liquid is prone to leaking from the air intake or mouthpiece, not only contaminating the device but also potentially causing discomfort to the user. Gravity-feed systems rely on the e-liquid's own weight to flow into the atomizer. This continuous supply method cannot effectively control the e-liquid flow. Even when the user stops inhaling, e-liquid may continue to flow into the atomizer due to gravity, leading to e-liquid accumulation and leakage. Therefore, this paper presents an e-cigarette with a negative pressure e-liquid supply to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this invention is to provide an electronic cigarette with a negative pressure e-liquid supply to address the shortcomings of existing technologies, thereby solving the technical problem that existing electronic cigarettes, which are designed for continuous e-liquid supply, are prone to e-liquid leakage.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] An electronic cigarette with negative pressure e-liquid supply includes an upper shell and a lower shell that is snapped onto the upper shell. The lower shell has an upper mounting seat and a lower mounting seat. The upper mounting seat has a cavity formed therein. The top of the lower mounting seat and the inner wall of the cavity together form an oil tank. An atomizer is installed in the oil tank.

[0006] The upper housing contains an oil bottle for storing e-liquid. The bottom of the oil bottle is formed with a bottleneck. The top of the upper mounting base is formed with a mounting groove for the bottleneck to be inserted. The bottom of the mounting groove is formed with several oil guide holes that communicate with the oil tank. The oil bottle communicates with the oil tank through the oil guide holes. The top of the lower mounting base is formed with several upward-extending oil guide columns. The oil guide columns pass through different oil guide holes to be placed inside the bottleneck.

[0007] When inhaling, outside air enters the atomizer, creating negative pressure inside the e-liquid tank. The e-liquid in the e-liquid bottle is then guided into the tank through the e-liquid guide column. When inhaling stops, the pressure inside the tank equalizes with the external air pressure, and the e-liquid in the e-liquid bottle stops flowing.

[0008] Furthermore, the top of the upper housing is formed with a mouthpiece, and a smoke guide channel is provided inside the mouthpiece. The top of the atomizer extends upward and passes through the upper mounting base to communicate with the smoke guide channel. The bottom of the lower housing is formed with an air inlet that communicates with the atomizer.

[0009] Furthermore, a fixing seat is installed at the top of the upper housing, and the fixing seat is equipped with condensation cotton placed between the top of the atomizer and the bottom of the smoke guide channel. The condensation cotton is used to absorb e-liquid that has not been completely atomized; a limiting plate is provided on the top surface of the condensation cotton to limit its movement.

[0010] Furthermore, several sealing rings are provided between the outer wall of the bottleneck and the inner wall of the mounting groove to improve the sealing effect.

[0011] Furthermore, an oil guiding channel is formed between the oil guide hole and the oil reservoir.

[0012] Furthermore, a pressure relief and ventilation groove is formed at the top of the chamber and placed at the oil guide channel. The pressure relief and ventilation groove is used to quickly release air from the inside of the oil bottle when pumping stops.

[0013] Furthermore, each oil guide hole has an extension formed on its periphery that can be inserted into the bottleneck. The extension is arc-shaped and partially surrounds the corresponding oil guide column.

[0014] Furthermore, a base is installed at the bottom of the lower mounting base, and a second oil-absorbing cotton is installed inside the base to prevent e-liquid leakage. The second oil-absorbing cotton is placed below the atomizer.

[0015] Furthermore, the atomizer includes a support cylinder and an atomizing tube placed inside the support cylinder. The top end of the atomizing tube passes through the upper mounting base and communicates with the smoke guide channel. A layer of oil-guiding cotton is provided between the support cylinder and the atomizing tube, and a heating core for heating e-liquid is installed inside the atomizing tube. The support cylinder is formed with several first oil inlet holes for guiding the e-liquid in the oil tank to be absorbed by the oil-guiding cotton, and the atomizing tube is formed with several second oil inlet holes for guiding the e-liquid in the oil-guiding cotton to the heating core.

[0016] Furthermore, a first oil-absorbing cotton is provided at the bottom of the atomizing tube.

[0017] The beneficial effects of this invention are as follows: When a user inhales, outside air enters the atomizer. At this time, the atomizer operates, heating the e-liquid to produce vapor. Because the atomizer is connected to the e-liquid tank, the air pressure inside the e-liquid tank is reduced, while the external air pressure is relatively higher. This causes the e-liquid in the e-liquid bottle to flow into the e-liquid tank through the guide column, and then into the atomizer. During inhalation, the principle of negative pressure difference between the inside and outside is used to inhale and exhale simultaneously, achieving the effect of automatic e-liquid entering the e-liquid tank from the e-liquid bottle.

[0018] When the user is not inhaling, outside air enters the oil tank and oil bottle, maintaining a balance between the air pressure difference between the oil tank and the outside, and between the oil bottle and the outside. This prevents e-liquid from automatically flowing into the oil tank from the oil bottle, thus preventing automatic oil filling. During inhalation, e-liquid is automatically supplied under negative pressure. When inhalation stops, the air pressure returns to normal, stopping the oil supply. This automatic oil supply design effectively prevents leakage, ensuring the safety of the device and the user experience.

[0019] In addition, by setting several oil guide holes inside the bottleneck, after negative pressure is generated, it is ensured that the e-liquid can flow smoothly into the oil tank, thus improving the oil supply effect. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the internal structure of the present invention from another perspective.

[0023] Figure 4 This is a schematic diagram of the top structure of the mounting base of this utility model.

[0024] Figure 5 This is a schematic diagram of the internal structure of the chamber of this utility model.

[0025] Figure 6 This is a schematic diagram of the internal structure of the upper and lower mounting bases of this utility model.

[0026] Figure 7 This is a schematic diagram of the atomizer of this utility model.

[0027] The reference numerals in the figures include:

[0028] 1. Upper shell; 2. Lower shell; 3. Upper mounting base; 301. Chamber; 4. Lower mounting base; 5. Oil tank; 6. Atomizer; 601. Support cylinder; 602. Atomizing tube; 603. Oil guide cotton; 604. First oil inlet; 605. Second oil inlet; 606. Heating element; 607. First oil absorbent cotton; 7. Mouthpiece; 8. Smoke guide channel; 9. Fixing base; 10. Condensation cotton; 11. Limiting plate; 12. Air inlet; 13. Oil bottle; 14. Bottle neck; 15. Sealing ring; 16. Oil guide column; 17. Mounting groove; 171. Oil guide hole; 172. Oil guide channel; 173. Pressure relief and ventilation groove; 18. Extension; 19. Base; 20. Second oil absorbent cotton. Detailed Implementation

[0029] The following is a detailed description of an electronic cigarette with a negative pressure e-liquid supply according to the present invention, with reference to the accompanying drawings.

[0030] like Figure 1-5 As shown, an embodiment of the present invention, an electronic cigarette with negative pressure e-liquid supply, includes an upper housing 1 and a lower housing 2 that is snapped onto the upper housing 1. The lower housing 2 contains an upper mounting seat 3 and a lower mounting seat 4 arranged vertically. The upper mounting seat 3 has a cavity 301 formed within it (e.g., ...). Figure 5 As shown, the top of the lower mounting base 4 is placed inside the chamber 301, and the top surface of the lower mounting base 4 and the inner wall of the chamber 301 together form an oil tank 5, which can store 2ml of e-liquid. An atomizer 6 for heating and atomizing the e-liquid is installed inside the oil tank 5. A mouthpiece 7 is formed on the top of the upper shell 1, and a smoke guide channel 8 is provided inside the mouthpiece 7. The top of the atomizer 6 extends upward and passes through the upper mounting base 3 and communicates with the smoke guide channel 8. An air inlet 12 communicating with the atomizer 6 is formed on the bottom of the lower shell 2. The e-liquid in the oil tank 5 automatically flows into the atomizer 6. When the user inhales through the mouthpiece 7, outside air enters the atomizer 6 through the air inlet 12. At this time, the atomizer 6 operates, heating the e-liquid to produce vapor. Then the air carries the generated vapor out of the atomizer 6 and guides it through the smoke guide channel 8 for the user to inhale.

[0031] In this embodiment, a fixing seat 9 is installed at the top of the upper housing 1. The fixing seat 9 has a condensing cotton 10 placed between the top of the atomizer 6 and the bottom of the smoke guide channel 8. The condensing cotton 10 is used to absorb e-liquid that has not been fully atomized. When the user vapes, the e-liquid that has not been fully atomized flows out of the top of the atomizer 6 and is absorbed by the condensing cotton 10, preventing the e-liquid from flowing out of the smoke guide channel 8 and preventing e-liquid leakage, which would affect the user experience. A limiting piece 11 is provided on the top surface of the condensing cotton 10 to limit its position. Under the action of the limiting piece 11, the condensing cotton 10 is always placed between the top of the atomizer 6 and the bottom of the smoke guide channel 8 to prevent displacement.

[0032] Furthermore, the upper housing 1 is provided with an oil bottle 13 for storing e-liquid. The bottom of the oil bottle 13 is formed with a bottleneck 14, and the top of the upper mounting base 3 is formed with a mounting groove 17 for the bottleneck 14 to be inserted. The bottom of the mounting groove 17 is formed with several oil guide holes 171 that communicate with the oil tank 5. After the bottleneck 14 is inserted into the mounting groove 17, the oil bottle 13 communicates with the oil tank 5 through the oil guide holes 171. An oil guide channel 172 is formed between the oil guide holes 171 and the oil tank 5. The e-liquid in the oil bottle 13 flows into the oil tank 5 through the oil guide holes 171 and the oil guide channel 172 in sequence. In addition, the top of the lower mounting base 4 is formed with several upward-extending oil guide columns 16, which pass through different oil guide holes 171 and are placed inside the bottleneck 14.

[0033] When the user vapes, the atomizer 6 operates, heating the e-liquid to produce vapor. Because the atomizer 6 is internally connected to the e-liquid tank 5, the air pressure inside the tank 5 decreases, while the external air pressure is relatively higher. This causes the e-liquid in the e-liquid bottle 13 to flow into the tank 5 through the wicking column 16. During vaping, the negative pressure difference between the inside and outside is used to simultaneously inhale and exhale, achieving the effect of e-liquid in the e-liquid bottle 13 automatically flowing into the tank 5. When the user is not vaping, outside air enters the tank 5 and the e-liquid bottle 13, maintaining a balance between the air pressure difference between the tank 5 and the outside, and between the e-liquid bottle 13 and the outside. This prevents e-liquid in the bottle 13 from automatically flowing into the tank 5, thus preventing automatic filling. This design effectively prevents leakage, ensuring the safety of the device and the user experience. Several wicking holes 171 are located inside the bottleneck 14, ensuring smooth flow of e-liquid into the tank 5 after negative pressure is generated.

[0034] In this embodiment, a plurality of sealing rings 15 are provided between the outer wall of the bottleneck 14 and the inner wall of the mounting groove 17 to improve the sealing effect. After the bottleneck 14 is embedded into the mounting groove 17, the sealing rings 15 prevent e-liquid from leaking out from the gap between the outer wall of the bottleneck 14 and the inner wall of the mounting groove 17. A pressure relief and ventilation groove 173 is formed at the top of the chamber 301 and placed at the oil guide channel 172. The pressure relief and ventilation groove 173 is used to improve the ventilation efficiency inside the oil bottle 13. When the user stops vaping, the pressure relief and ventilation groove 173 allows outside air to enter the oil bottle 13 more quickly, achieving rapid pressure relief and ventilation.

[0035] In this embodiment, an extension 18 is formed on the periphery of each oil guide hole 171, which can be inserted into the bottleneck 14. The extension 18 is arc-shaped and partially surrounds the corresponding oil guide column 16. When the bottleneck 14 is embedded into the mounting groove 17, the extension 18 is inserted into the bottleneck 14, and the oil guide column 16 is automatically placed in the bottleneck 14. Under the action of the extension 18, when the oil bottle 13 is installed, it can not only protect the oil guide column 16 and prevent the bottom of the bottleneck 14 from pressing the oil guide column 16, but also buffer the e-liquid in the oil bottle 13. When the pressure difference between the inside and outside of the oil tank 5 is balanced, the e-liquid in the oil bottle 13 will not automatically flow out from the oil guide hole 171 due to gravity.

[0036] like Figure 6 As shown, a base 19 is installed at the bottom of the lower mounting base 4. A second absorbent cotton 20 is installed inside the base 19 to prevent e-liquid leakage. The second absorbent cotton 20 is placed below the atomizer 6. E-liquid that is not atomized inside the atomizer 6 will flow downwards and be absorbed by the second absorbent cotton 20 after flowing out of the atomizer 6, preventing e-liquid from leaking out of the electronic cigarette.

[0037] like Figure 7As shown, the atomizer 6 includes a support cylinder 601 and an atomizing tube 602 placed inside the support cylinder 601. The top end of the atomizing tube 602 passes through the upper mounting base 3 and communicates with the smoke guide channel 8. A layer of wicking cotton 603 is provided between the support cylinder 601 and the atomizing tube 602, and a heating element 606 for heating e-liquid is installed inside the atomizing tube 602. The support cylinder 601 has several first inlet holes 604 for guiding the e-liquid in the oil tank 5 to be absorbed by the wicking cotton 603, and the atomizing tube 602 has several second inlet holes 605 for guiding the e-liquid in the wicking cotton 603 to the heating element 606. After the wicking cotton 603 absorbs the e-liquid in the oil tank 5, the e-liquid in the wicking cotton 603 is guided by a ramping motion, flowing through the second inlet holes 605 to the heating element 606. The heating element 606 heats the e-liquid into vapor. In addition, a first oil-absorbing cotton 607 is provided at the bottom of the atomizing tube 602. The function of the first oil-absorbing cotton 607 is the same as that of the second oil-absorbing cotton 20, which is to prevent the leakage of e-liquid and further improve the user experience.

[0038] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0039] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A negative pressure type electronic cigarette for supplying tobacco tar, comprising an upper shell (1) and a lower shell (2) which is clamped and installed with the upper shell (1), characterized in that: The lower housing (2) is provided with an upper mounting seat (3) and a lower mounting seat (4). The upper mounting seat (3) has a chamber (301) formed inside. The top of the lower mounting seat (4) and the inner wall of the chamber (301) together form an oil tank (5). An atomizer (6) is installed inside the oil tank (5). The upper housing (1) is provided with an oil bottle (13) for storing e-liquid. The bottom of the oil bottle (13) is formed with a bottleneck (14). The top of the upper mounting base (3) is formed with a mounting groove (17) for embedding the bottleneck (14). The bottom of the mounting groove (17) is formed with several oil guide holes (171) that communicate with the oil tank (5). The oil bottle (13) communicates with the oil tank (5) through the oil guide holes (171). The top of the lower mounting base (4) is formed with several upward-extending oil guide columns (16). The oil guide columns (16) pass through different oil guide holes (171) to be placed in the bottleneck (14). When inhaling, outside air enters the atomizer (6), creating a negative pressure inside the oil tank (5), and the e-liquid in the oil bottle (13) is guided into the oil tank (5) through the oil guide column (16); when inhaling stops, the oil tank (5) is balanced with the external air pressure, and the e-liquid in the oil bottle (13) stops flowing.

2. The electronic cigarette of claim 1, wherein: The top of the upper housing (1) is formed with a mouthpiece (7), and a smoke guide channel (8) is provided inside the mouthpiece (7). The top of the atomizer (6) extends upward and passes through the upper mounting base (3) to communicate with the smoke guide channel (8). The bottom of the lower housing (2) is formed with an air inlet (12) that communicates with the atomizer (6).

3. The electronic cigarette of claim 2, wherein: The upper housing (1) is equipped with a fixing seat (9) at the top. The fixing seat (9) is provided with condensing cotton (10) placed between the top of the atomizer (6) and the bottom of the smoke channel (8). The condensing cotton (10) is used to absorb the e-liquid that has not been completely atomized. The top surface of the condensing cotton (10) is provided with a limiting piece (11) for limiting its position.

4. The electronic cigarette of claim 1, wherein: Several sealing rings (15) are provided between the outer wall of the bottleneck (14) and the inner wall of the mounting groove (17) to improve the sealing effect.

5. The electronic cigarette of claim 1, wherein: An oil guide channel (172) is formed between the oil guide hole (171) and the oil tank (5).

6. The electronic cigarette of claim 5, wherein: The top of the chamber (301) is formed with a pressure relief and ventilation groove (173) located at the oil guide channel (172). The pressure relief and ventilation groove (173) is used to quickly release air from the inside of the oil bottle (13) when the pumping stops.

7. The electronic cigarette of claim 1, wherein: Each oil guide hole (171) has an extension (18) formed on its periphery that can be inserted into the bottleneck (14). The extension (18) is arc-shaped and partially surrounds the corresponding oil guide column (16).

8. The electronic cigarette of claim 1, wherein: The bottom of the lower mounting base (4) is equipped with a base (19), and a second oil-absorbing cotton (20) is provided inside the base (19) to prevent e-liquid leakage. The second oil-absorbing cotton (20) is placed below the atomizer (6).

9. The electronic cigarette of claim 2, wherein: The atomizer (6) includes a support cylinder (601) and an atomizing tube (602) placed inside the support cylinder (601). The top end of the atomizing tube (602) passes through the upper mounting base (3) and communicates with the smoke guide channel (8). A layer of oil-guiding cotton (603) is provided between the support cylinder (601) and the atomizing tube (602), and a heating core (606) for heating e-liquid is installed inside the atomizing tube (602). The support cylinder (601) is formed with a number of first oil inlet holes (604) for guiding the e-liquid in the oil tank (5) to be absorbed by the oil-guiding cotton (603), and the atomizing tube (602) is formed with a number of second oil inlet holes (605) for guiding the e-liquid in the oil-guiding cotton (603) to the heating core (606).

10. The electronic cigarette of claim 9, wherein: The bottom end of the atomizing tube (602) is provided with a first oil-absorbing cotton (607).

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