An oil leakage-proof electronic cigarette liquid tank

Abstract

The application provides an oil leakage prevention electronic cigarette oil tank, which comprises an oil tank, a lower oil hole, a heating core, an oil guide body, a lower oil tank, an air resistance adjustment channel, first silica gel, a support and second silica gel, the heating core is arranged in an air passage of the oil tank, the top of the air passage is connected to a suction nozzle and connected to the air resistance adjustment channel, the first silica gel is arranged at the bottom of the oil tank, one side of the first silica gel is provided with the lower oil hole, the oil tank is connected to the oil guide body through the lower oil hole, the bottom of the oil guide body is provided with the lower oil tank, the second silica gel is arranged below the lower oil tank through the support, and an oil injection hole channel is formed on the side of the first silica gel away from the lower oil hole after the second silica gel passes through the lower oil tank and the support. The application can effectively avoid the problems that the cigarette oil is squeezed out in the prior art, effectively improve the humanized design degree of the product, and well meet the transportation, use and maintenance requirements of the product.

Description

Technical Field

[0001] This invention relates to an electronic e-liquid container, and more particularly to an electronic e-liquid container that is leak-proof. Background Technology

[0002] The e-cigarette's device and e-liquid tank contain various electronic components, such as indicator lights, PCB circuit boards, batteries, and heating elements. Therefore, the e-liquid tank requires a certain degree of separation design, but cannot be completely sealed, as the e-liquid needs to be connected to the heating element for vaporization. Furthermore, e-liquid filling is typically performed by factory professionals to prevent improper handling that could cause e-liquid to flow back into the mouthpiece or onto the battery, corroding the circuitry. However, during high-speed or high-altitude transportation, due to the inadequate internal structure design of current e-liquid tanks, changes in air pressure or temperature can cause variations in gas and e-liquid volumes, leading to e-liquid leakage or spillage. This negatively impacts the product's usability and is highly detrimental to transportation, use, and maintenance. Summary of the Invention

[0003] The technical problem to be solved by this invention is to provide an electronic e-liquid tank that can prevent oil leakage. The aim is to avoid the problem of e-liquid being squeezed out during high-altitude / high-speed transportation and to avoid the problem of oil leakage and splashing after vaping by optimizing the product design, thereby improving the user-friendly design of the product and meeting the needs of transportation, use and maintenance.

[0004] To address this issue, the present invention provides a leak-proof e-cigarette oil tank, comprising: an oil tank, an oil outlet, a heating element, an oil guide body, a lower oil tank, a draw resistance adjustment channel, a first silicone pad, a bracket, and a second silicone pad. The heating element is fitted within the air passage of the oil tank. The top of the air passage is connected to the e-cigarette mouthpiece. The air passage passes sequentially from top to bottom through the oil tank, the first silicone pad, the oil guide body, the lower oil tank, and the second silicone pad before connecting to the draw resistance adjustment channel. The first silicone pad is disposed at the bottom of the oil tank, and the oil outlet is provided on one side of the first silicone pad. The oil tank is connected to the oil guide body through the oil outlet, and a bracket is provided below the bottom of the oil guide body. The device has a lower oil tank; the second silicone is disposed below the lower oil tank via the bracket, and after passing through the lower oil tank and the bracket, forms an oil injection channel on the side of the first silicone away from the lower oil hole. The upper surface of the oil injection channel near the mouthpiece is higher than the upper surface of the lower oil hole near the mouthpiece. During oil injection, the e-cigarette oil tank is inverted with the oil tank facing downwards. Oil is injected into the oil tank through the oil injection needle passing through the oil injection channel. At the same time as oil injection, the gas in the oil tank is discharged through the lower oil hole on the other side until the e-liquid passes through the lower oil hole channel and is submerged in the oil guide body. Then, oil injection is stopped to discharge the gas in the oil tank.

[0005] A further improvement of the present invention is that the oil guide body is a liquid-absorbing structure made of high-density molecular material, and the liquid-absorbing structure has gap pores inside. When the oil guide body is full of e-liquid, the gap pores of the oil guide body are filled with e-liquid, and gas cannot enter the oil tank through the oil guide body, thereby preventing the e-liquid in the oil tank from flowing out from the lower oil hole.

[0006] A further improvement of the present invention is that the position of the heating element corresponds to the position of the wicking body; when e-liquid enters the wicking body from the lower wick hole, the wicking body conducts the e-liquid to the heating element; when the heating element is working, the e-liquid on the heating element and the wicking body is vaporized at high temperature. During the process of the e-liquid being consumed in the wicking body, when the e-liquid near the lower wick hole is also consumed, the gas passes through the wicking body and enters the oil tank, so that the e-liquid in the oil tank can flow from the lower wick hole to the wicking body.

[0007] A further improvement of the present invention is that it also includes a PCB circuit board, which is disposed below the second silicone and nested with the suction resistance adjustment channel.

[0008] A further improvement of the present invention is that it also includes a pneumatic switch, which is disposed below the second silicone and above the PCB circuit board.

[0009] A further improvement of the present invention is that it also includes a pressure relief groove, one end of which is connected to the lower oil tank, and the other end of which is connected between the suction resistance adjustment channel and the air passage. When the electronic cigarette is working, a negative pressure space is formed between the mouthpiece and the suction resistance adjustment channel. The gas communicates with the negative pressure space through the pressure relief groove to ensure pressure balance between the air passage and the remaining space of the electronic cigarette oil tank. During the pressure balancing process, the e-liquid squeezed out by the oil guide body is absorbed into the lower oil tank.

[0010] A further improvement of the present invention is that when the extruded e-liquid is absorbed into the lower oil chamber, a rotary pressure relief air passage is formed between the lower oil chamber and the oil guide body, and the gas achieves pressure balance through the rotary pressure relief air passage.

[0011] A further improvement of the present invention is that when the e-liquid on the wicking body exceeds the maximum volume that the wicking body can absorb, the excess e-liquid is stored in the lower oil tank; when the e-liquid on the wicking body decreases, the e-liquid in the lower oil tank will be absorbed back by the wicking body.

[0012] A further improvement of the present invention is that it also includes a battery cell, which is disposed on one side of the oil tank. A further improvement of the present invention is that the support is also provided with a lifting column, which is disposed in the lower oil tank and at any location below, around, or on top of the oil guide body.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the first silicone is disposed at the bottom of the oil tank, and the oil inlet hole is provided on one side of the first silicone; the oil tank is connected to the oil guide body through the oil inlet hole, and the oil tank is disposed below the bottom of the oil guide body; the second silicone is disposed below the oil tank through the bracket, and after passing through the oil tank and the bracket, it forms an oil injection channel on the side of the first silicone away from the oil inlet hole, and the upper surface of the oil injection channel near the mouthpiece is higher than the upper surface of the oil inlet hole near the mouthpiece; thus, when filling oil, the e-cigarette oil tank can be inverted so that the direction of the oil tank is downward. E-liquid is injected into the e-liquid tank through the injection port channel using an injection needle. Simultaneously, gas within the tank is expelled through the lower lip port on the other side. Injection continues until the e-liquid has passed through the lower lip port channel and submerged in the lip guide. At this point, because the upper surface of the injection port channel near the mouthpiece is higher than the upper surface of the lower lip port near the mouthpiece, all gas in the tank is completely expelled during injection, leaving virtually no residual gas. Even during high-altitude / high-speed transport, there will be no change in gas volume due to pressure or temperature variations, effectively preventing problems such as e-liquid being squeezed out as seen in existing technologies. When the temperature rises, the e-liquid in the tank expands and overflows, which is absorbed by the lip guide. When the temperature drops, the e-liquid contracts, creating negative pressure within the tank. The e-liquid in the lip guide then flows back into the tank through the lower lip port, ensuring that e-liquid does not leak due to temperature changes during transport or storage. This invention effectively improves the human-centered design of products and well meets the needs of product transportation, use and maintenance. Attached Figure Description

[0014] Figure 1 This is a cross-sectional structural schematic diagram of one embodiment of the present invention; Figure 2 This is a schematic diagram of the venting principle during the oil injection process according to an embodiment of the present invention; Figure 3 This is a schematic diagram showing the location of the lower oil tank according to one embodiment of the present invention; Figure 4 This is a schematic diagram of an optimized structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the principle of forming a rotary pressure relief air passage after the system stops working, according to one embodiment of the present invention.

[0015] Attached diagram labels: 1-Oil tank; 2-Lower oil hole; 3-Heating element; 4-Oil guide body; 5-Lower oil tank; 6-Suction resistance adjustment channel; 7-First silicone; 8-Bracket; 9-Second silicone; 10-PCB circuit board; 11-Pressure switch; 12-Pressure relief groove; 13-Air passage; 14-Oil filling hole channel; 15-Suction nozzle; 16-Rotating pressure relief air passage; 17-Battery cell; 18-Lifting column. Detailed Implementation

[0016] In the description of this invention, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing the invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. If a technical feature is referred to as "set," "fixed," "connected," or "installed" on another technical feature, it can be directly set, fixed, or connected to the other technical feature, or it can be indirectly set, fixed, connected, or installed on the other technical feature.

[0017] In the description of this invention, the term "several" means one or more; the term "multiple" means two or more; the terms "greater than," "less than," and "exceeding" are all understood to exclude the stated number; and the terms "above," "below," and "within" are all understood to include the stated number. The terms "first," "second," etc., are understood to be used only to distinguish identical or similar technical feature names, and should not be construed as implying / indicating the relative importance of the technical features, the number of technical features, or the sequential relationship between the technical features.

[0018] The preferred embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0019] like Figures 1 to 5As shown, this embodiment provides a leak-proof e-cigarette oil tank, including: an oil tank 1, an oil outlet 2, a heating element 3, an oil guide 4, an oil outlet 5, a draw resistance adjustment channel 6, a first silicone 7, a bracket 8, and a second silicone 9. The heating element 3 is sleeved in the air passage 13 of the oil tank 1; the top of the air passage 13 is connected to the mouthpiece 15 of the e-cigarette, and the air passage 13 passes through the oil tank 1, the first silicone 7, the oil guide 4, the oil outlet 5, and the second silicone 9 from top to bottom, and then connects to the draw resistance adjustment channel 6; the first silicone 7 is disposed in... The bottom of the oil reservoir 1, and one side of the first silicone 7, is provided with the lower oil hole 2; the oil reservoir 1 is connected to the oil guide body 4 through the lower oil hole 2, and a lower oil reservoir 5 is provided below the bottom of the oil guide body 4; the second silicone 9 is provided below the lower oil reservoir 5 through the bracket 8, and after passing through the lower oil reservoir 5 and the bracket 8, it forms an oil injection channel 14 on the side of the first silicone 7 away from the lower oil hole 2, and the upper surface of the oil injection channel 14 near the suction nozzle 15 is higher than the upper surface of the lower oil hole 2 near the suction nozzle 15; Figure 2 As shown, during refilling, the e-cigarette oil tank 1 is inverted with its direction downwards. Oil is injected into the oil tank 1 through the refill needle passing through the refill hole channel 14. Figure 2 As indicated by the downward arrow; while oil is being injected, the gas inside the oil tank 1 is discharged through the lower oil hole 2 on the other side, as shown. Figure 2 As indicated by the upward arrow, the e-liquid continues to be injected until it passes through the lower oil hole 2 and is submerged in the oil guide body 4. In this state, the gas in the oil tank 1 can be effectively discharged.

[0020] It is worth noting that, such as Figure 1 As shown, since the upper surface of the oil injection channel 14 near the suction nozzle 15 is higher than the upper surface of the lower oil hole 2 near the suction nozzle 15, therefore, as Figure 2 As shown, during e-liquid filling, the e-liquid tank 1 is inverted, allowing the gas inside to be completely discharged through the drain hole 2, which is closer to the bottom of the product. This ensures that there is virtually no residual gas in the tank 1, preventing changes in gas volume due to pressure variations even during high-altitude / high-speed transportation. This effectively avoids problems such as e-liquid being squeezed out, common in existing technologies. When the temperature rises, the e-liquid in the tank 1 expands and overflows, which is absorbed by the wicking body 4. When the temperature drops, the e-liquid contracts, creating a negative pressure inside the tank 1. The e-liquid in the wicking body 4 then flows back into the tank 1 through the drain hole 2, ensuring that e-liquid does not leak due to temperature changes during transportation or storage. This embodiment effectively improves the product's user-friendly design and well meets the needs of transportation, use, and maintenance.

[0021] In this embodiment, the oil guide 4 is a liquid-absorbing structure made of high-density molecular material. The liquid-absorbing structure has gap holes inside. When the oil guide 4 is full of e-liquid, the gap holes of the oil guide 4 are filled with e-liquid, and gas cannot enter the oil tank 1 through the oil guide 4, so as to prevent the e-liquid in the oil tank 1 from flowing out from the lower oil hole 2.

[0022] More specifically, such as Figure 3 As shown, in this embodiment, the second silicone 9 is sleeved below the lower oil tank 5 via the bracket 8. The oil guide 4 is positioned above the lower oil tank 5 and below the lower oil hole 2. The oil guide 4 is preferably made of a high-density molecular material, such as cotton or ceramic, which has tiny pores. It is capable of guiding oil and, due to its internal pores, has a strong adsorption capacity for liquid molecules. When e-liquid enters the oil guide 4 from the lower oil hole 2, the oil guide 4 can conduct the e-liquid to the heating element 3.

[0023] When the wicking body 4 is filled with e-liquid, the gaps within it are filled, preventing gas from entering the oil reservoir 1. Under pressure, the liquid in the oil reservoir 1 will not flow out from the drain hole 2. When the heating element 3 operates, the e-liquid on the heating element 3 and the wicking body 4 is vaporized at high temperature. The e-liquid in the wicking body 4 is consumed. During this process, when the e-liquid near the drain hole 2 is also consumed, gas will pass through the wicking body 4 into the oil reservoir 1, and the liquid in the oil reservoir 1 will flow from the drain hole 2 onto the wicking body 4.

[0024] like Figures 1 to 5 As shown, in this embodiment, the position of the heating element 3 corresponds to the position of the wicking body 4. When e-liquid enters the wicking body 4 from the lower wicking hole 2, the wicking body 4 conducts the e-liquid to the heating element 3. When the heating element 3 is working, the e-liquid on the heating element 3 and the wicking body 4 is vaporized at high temperature. During the consumption of e-liquid in the wicking body 4, when the e-liquid near the lower wicking hole 2 is also consumed, the gas passes through the wicking body 4 and enters the oil tank 1, allowing the e-liquid in the oil tank 1 to flow from the lower wicking hole 2 to the wicking body 4. Furthermore, when the heating element 3 is not working, the above process does not occur, and there is no oil leakage.

[0025] like Figure 1As shown, this embodiment also includes a PCB circuit board 10, which is disposed below the second silicone 9 and nested with the suction resistance adjustment channel 6. This design fully utilizes the bottom space of the e-liquid tank to accommodate and install the PCB circuit board 10, while also directly utilizing the second silicone 9 for fixation, buffering, and protection, resulting in a more rational and efficient product structure. Furthermore, the nested connection between the PCB circuit board 10 and the suction resistance adjustment channel 6 means that the PCB circuit board 10 not only serves as the main control circuit board but also as a limiting structure for the suction resistance adjustment channel 6. This high degree of commonality eliminates the need for additional fixing and limiting structures for the suction resistance adjustment channel 6, facilitating product miniaturization.

[0026] like Figure 1 As shown, this embodiment also includes a pneumatic switch 11, which is disposed below the second silicone 9 and above the PCB circuit board 10. This design facilitates pneumatic switch control, and the PCB circuit board 10 also provides good limiting and protection for the pneumatic switch 11.

[0027] like Figure 3 , Figure 4 and Figure 5 As shown, this embodiment also includes a pressure relief groove 12, which is preferably an L-shaped connecting groove. One end of the pressure relief groove 12 is connected to the lower oil tank 5, and the other end of the pressure relief groove 12 is connected between the suction resistance adjustment channel 6 and the air passage 13. When the electronic cigarette is working, that is, when the heating core 3 is working, a negative pressure space is formed between the mouthpiece 15 and the suction resistance adjustment channel 6. The gas communicates with the negative pressure space through the pressure relief groove 12 to ensure the pressure balance between the air passage 13 and the remaining space of the electronic cigarette oil tank 1. During the pressure balance process, the e-liquid squeezed out by the oil guide 4 is absorbed into the lower oil tank 5.

[0028] It's worth noting that in existing technologies, after a negative pressure space is created, the gas in the oil tank automatically maintains pressure balance, causing the e-liquid to be forced out through the heating element and resulting in leakage. Unlike existing technologies, such as... Figure 4 As shown, this embodiment features an optimized structure including an oil guide body 4, a lower oil tank 5, and a pressure relief groove 12. After a negative pressure space is formed, the gas communicates with the negative pressure space through the pressure relief groove 12 to ensure pressure balance between the air passage 13 and the remaining space of the e-liquid tank 1, thereby avoiding the problem of e-liquid being squeezed out and causing leakage. Moreover, during the pressure balancing process, the e-liquid squeezed out by the oil guide body 4 is absorbed into the lower oil tank 5.

[0029] like Figure 5 As shown in the figure, during inhalation in this embodiment, the e-liquid in the oil tank 1 will be squeezed out in large quantities due to the decrease in external pressure. The pressure relief channel corresponding to the pressure relief groove 12 acts as a pressure relief port to guide the excess e-liquid to the lower oil tank 5. When the squeezed-out e-liquid is absorbed into the lower oil tank 5, a rotary pressure relief air passage 16 is formed between the lower oil tank 5 and the oil guide body 4. The gas achieves pressure balance through the rotary pressure relief air passage 16. Therefore, under the effect of achieving pressure balance, the e-liquid will not flow out through this pressure relief channel, thereby further improving the anti-leakage effect.

[0030] When the e-liquid on the lip guide 4 exceeds the maximum volume that the lip guide 4 can absorb, the excess e-liquid is stored in the lower e-liquid tank 5 as described in this embodiment; when the e-liquid on the lip guide 4 decreases, the e-liquid in the lower e-liquid tank 5 will be absorbed back by the lip guide 4. Clearly, its structural design is reasonable and reliable.

[0031] like Figure 1 As shown, this embodiment also includes a battery cell 17, which is disposed on one side of the oil tank 1. This effectively utilizes the space on one side of the oil tank 1 to achieve the placement and installation of the battery cell 17, resulting in a smaller overall product size. Figure 3 As shown, in this embodiment, the support 8 is preferably also provided with a lifting column 18. The lifting column 18 is disposed in the lower oil tank 5 and is located anywhere below, around, or on top of the oil guide body 4. The lifting column 18 is preferably an integrated support structure with the support 8, which facilitates the support and limiting of the oil guide body 4, ensuring that the space of the lower oil tank 5 is not occupied by the oil guide body 4 due to external forces or compression, thus better ensuring the stability and reliability of the product.

[0032] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A leak-proof e-cigarette liquid container, characterized in that, include: The device comprises an oil reservoir, an oil outlet, a heating element, an oil guide body, a lower oil reservoir, a draw resistance adjustment channel, a first silicone pad, a bracket, and a second silicone pad. The heating element is fitted into the air passage of the oil reservoir. The top of the air passage is connected to the mouthpiece of the electronic cigarette. The air passage passes through the oil reservoir, the first silicone pad, the oil guide body, the lower oil reservoir, and the second silicone pad sequentially from top to bottom, and then connects to the draw resistance adjustment channel. The first silicone pad is located at the bottom of the oil reservoir, and the oil outlet is located on one side of the first silicone pad. The oil reservoir is connected to the oil guide body through the oil outlet, and the lower oil reservoir is located below the bottom of the oil guide body. The second silicone pad... The bracket is positioned below the lower oil tank and passes through the lower oil tank and the bracket to form an oil injection channel on the side of the first silicone away from the lower oil hole. The upper surface of the oil injection channel near the mouthpiece is higher than the upper surface of the lower oil hole near the mouthpiece. During oil injection, the e-cigarette oil tank is inverted with the oil tank facing downwards. Oil is injected into the oil tank through the oil injection channel. At the same time as oil injection, the gas in the oil tank is discharged through the lower oil hole on the other side. Oil injection is stopped after the e-cigarette oil passes through the lower oil hole channel and is submerged in the oil guide body to discharge the gas in the oil tank. The oil guide is a liquid-absorbing structure made of high-density molecular material. The liquid-absorbing structure has gap pores inside. When the oil guide is full of e-liquid, the gap pores of the oil guide are filled with e-liquid, and gas cannot enter the oil tank through the oil guide, so as to prevent the e-liquid in the oil tank from flowing out from the lower oil hole. The position of the heating element corresponds to the position of the oil guide body; When e-liquid enters the oil guide body from the oil outlet, the oil guide body conducts the e-liquid to the heating element; When the heating element is working, the e-liquid on the heating element and the wicking body is vaporized at high temperature. As the e-liquid in the wicking body is consumed, when the e-liquid near the drain hole is also consumed, the gas passes through the wicking body and enters the oil tank, allowing the e-liquid in the oil tank to flow from the drain hole onto the wicking body.

2. The leak-proof e-cigarette oil tank according to claim 1, characterized in that, It also includes a PCB circuit board, which is disposed below the second silicone and nested with the suction resistance adjustment channel.

3. The leak-proof e-cigarette oil tank according to claim 2, characterized in that, It also includes a pneumatic switch, which is disposed below the second silicone and above the PCB circuit board.

4. The leak-proof e-cigarette oil tank according to claim 1, characterized in that, It also includes a pressure relief groove, one end of which is connected to the lower oil tank, and the other end of which is connected between the suction resistance adjustment channel and the air passage. When the e-cigarette is working, a negative pressure space is formed between the mouthpiece and the suction resistance adjustment channel. The gas communicates with the negative pressure space through the pressure relief groove to ensure the pressure balance between the air passage and the remaining space of the e-cigarette oil tank. During the pressure balancing process, the e-liquid squeezed out by the oil guide body is absorbed into the lower oil tank.

5. The leak-proof e-cigarette oil tank according to claim 4, characterized in that, When the extruded e-liquid is absorbed into the lower oil chamber, a rotary pressure relief air passage is formed between the lower oil chamber and the oil guide body, and the gas achieves pressure balance through the rotary pressure relief air passage.

6. The leak-proof e-cigarette oil tank according to claim 1, characterized in that, When the e-liquid on the wicking body exceeds the maximum volume that the wicking body can absorb, the excess e-liquid is stored in the lower e-liquid tank; when the e-liquid on the wicking body decreases, the e-liquid in the lower e-liquid tank will be absorbed back by the wicking body.

7. The leak-proof e-cigarette oil tank according to claim 1, characterized in that, It also includes battery cells, which are disposed on one side of the oil tank.

8. The leak-proof e-cigarette oil tank according to claim 1, characterized in that, The support is also equipped with a lifting column, which is located in the lower oil tank and can be positioned anywhere below, around, or on top of the oil guide body.

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