An electronic cigarette oil storage bottle
By incorporating a piston and a level monitoring component into the e-cigarette's reservoir, the problems of leakage and dry burning were solved, achieving a bubble-free function that can detect the amount of e-liquid, thus ensuring the stable use of the e-cigarette.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YOUME NETWORK TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing e-cigarette oil storage structures are prone to leaks, air bubbles, and inaccurate determination of remaining oil levels, leading to atomizer dry burning issues.
An electronic cigarette oil storage bottle was designed, comprising a cap, a bottle body, a base, a piston, and a liquid level monitoring component. The piston moves by contacting the e-liquid, ensuring stable air pressure, and the liquid level monitoring component detects the e-liquid level in real time to prevent leakage and dry burning.
It achieves bubble-free e-liquid leakage, allows for timely e-liquid replacement, prevents atomizer dry burning, and ensures normal use of e-cigarettes.
Smart Images

Figure CN224504716U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cigarette substitute technology, and in particular to an electronic cigarette oil storage bottle. Background Technology
[0002] Electronic atomizing devices are electronic products that mimic cigarettes, atomizing e-liquid into vapor for users to inhale. Due to their similar taste and ease of use to cigarettes, electronic atomizing devices have been rapidly promoted and used.
[0003] Existing electronic atomizing devices generally consist of a battery-operated main unit and an atomizer. The atomizer is the vapor-generating part of the electronic atomizing device, containing e-liquid. High temperatures cause the e-liquid to atomize and form vapor. The battery-operated main unit is the control center and power supply unit of the electronic atomizing device. The atomizer coil is usually immersed in e-liquid or wrapped in wicking cotton. The e-liquid enters through the wicking holes and is absorbed by the wicking cotton, allowing the heating coil to come into contact with the e-liquid absorbed by the wicking cotton. When electricity is applied, the heating coil generates high-temperature atomization of the e-liquid.
[0004] Existing e-cigarettes typically include refillable or disposable e-cigarettes filled with e-liquid, and refillable e-cigarettes that are initially unfilled and refilled before use. Refillable e-cigarettes allow users to refill the e-liquid in the atomizer's reservoir after it runs out. Refillable e-cigarettes allow users to replace the e-liquid in the atomizer with a brand new cartridge containing e-liquid after it runs out. Disposable e-cigarettes end their lifespan once the e-liquid is used up.
[0005] Some e-cigarettes have a spare e-liquid bottle inside to refill the e-liquid tank. However, the e-liquid bottle has a complex structure. When refilling, the air bubbles generated inside the bottle cannot be expelled or will cause leakage due to compression. Furthermore, it is impossible to determine the amount of e-liquid remaining in the bottle. Insufficient refilling can easily cause the atomizer to burn out. Utility Model Content
[0006] Therefore, it is necessary to provide an electronic cigarette oil storage bottle that is simple in structure, leak-proof, bubble-free, and capable of detecting the remaining e-liquid level in the bottle, in order to address the above problems.
[0007] An electronic cigarette oil reservoir includes a cap, a bottle body, a base, a piston, and a liquid level monitoring component. The cap and the base are respectively disposed at both ends of the bottle body. The piston is disposed inside the bottle body and divides the interior of the bottle body into an oil storage chamber and an air storage chamber. The cap has an air hole communicating with the air storage chamber. The base has an oil passage hole and an oil passage plug. The oil passage hole communicates with the oil storage chamber, and the oil passage plug blocks the oil passage hole. The liquid level monitoring component is disposed inside the oil storage chamber.
[0008] In one embodiment, the piston is made of a soft rubber material, and the piston edge is interference-fitted with the inner wall of the bottle.
[0009] In one embodiment, a sealing plug is also included, the sealing plug being adjacent to the base, and the edge of the sealing plug being interference-fitted with the bottle body.
[0010] In one embodiment, the base is provided with a mounting hole and a positioning flange. The mounting hole is located in the middle of the base, and the positioning flange is located on the inner wall of the mounting hole. One end of the sealing plug is embedded in the mounting hole, and the sealing plug is provided with a positioning groove that is adapted to the positioning flange. The oil passage hole is located in the middle of the sealing plug.
[0011] In one embodiment, the bottle cap is provided with a positioning buckle, which is located on the side of the bottle body and has a certain gap with the bottle body. The free end of the positioning buckle is provided with a snap, and the outer side of the positioning buckle is provided with an anti-slip protrusion.
[0012] In one embodiment, the liquid level monitoring assembly includes a magnetic element and a Hall effect device. The magnetic element is fixed to the end of the piston that contacts the e-liquid, and the Hall effect device is fixed to the sealing plug. The Hall effect device monitors the amount of e-liquid based on the magnetism of the magnetic element sensed at a specific distance.
[0013] In one embodiment, the liquid level monitoring component includes a first capacitor and a second capacitor, which are respectively disposed on the piston and the sealing plug. The amount of e-liquid is monitored based on the capacitance value generated by the different distances between the first capacitor and the second capacitor.
[0014] In one embodiment, the liquid level monitoring component includes a liquid level sensor plate disposed on the side wall of the oil storage cavity near the sealing plug.
[0015] In one embodiment, the liquid level monitoring component includes a pressure sensor disposed on the sealing plug, which monitors the amount of e-liquid based on the pressure exerted by the e-liquid in the oil storage chamber on the sealing plug.
[0016] In one embodiment, the liquid level monitoring component includes a mechanical tactile switch disposed on the sealing plug, and the amount of e-liquid is monitored when the piston moves to touch the mechanical tactile switch due to the movement of the e-liquid.
[0017] The aforementioned e-cigarette oil reservoir has at least the following advantages:
[0018] This e-cigarette refill bottle features a piston inside the bottle. The e-liquid contacts the piston, so as the e-liquid is consumed, it moves the piston. Because the cap has an vent that connects to the outside, the pressure inside the reservoir remains constant despite the piston's movement, preventing e-liquid leakage and the formation of air bubbles due to pressure changes. A level monitoring component inside the reservoir allows for timely replacement before the e-liquid runs out, preventing burning. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the electronic cigarette oil storage bottle of this utility model;
[0020] Figure 2 This is a cross-sectional view of the electronic cigarette oil storage bottle of this utility model;
[0021] Figure 3 This is a cross-sectional view of the liquid level monitoring component in the electronic cigarette oil storage bottle of this utility model when it is a Hall device or a capacitor.
[0022] Figure 4 This is a cross-sectional view of the liquid level monitoring component in the electronic cigarette oil storage bottle of this utility model when it is a liquid level sensing plate;
[0023] Figure 5 This is a cross-sectional view of the liquid level monitoring component in the electronic cigarette oil storage bottle of this utility model when it is a pressure sensor;
[0024] Figure 6 This is a cross-sectional view of the liquid level monitoring component in the electronic cigarette oil reservoir of this utility model when it is a mechanical tactile switch.
[0025] Description: 10. Bottle cap; 12. Air vent; 14. Positioning buckle; 142. Snap fastener; 144. Anti-slip protrusion; 20. Bottle body; 22. Oil storage chamber; 24. Air storage chamber; 30. Base; 32. Oil passage hole; 34. Mounting hole; 36. Positioning flange; 40. Piston; 50. Liquid level monitoring component; 51. Magnetic component; 52. Hall effect device; 53. First capacitor; 54. Second capacitor; 55. Liquid level sensing element; 56. Pressure sensor; 57. Mechanical tactile switch; 60. Sealing plug; 62. Positioning groove. Detailed Implementation
[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0027] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0028] Unless otherwise defined, 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0029] Please see Figure 1 This is a schematic diagram of the structure of an electronic cigarette oil storage bottle in one embodiment.
[0030] For details, please refer to Figures 1-6 The electronic cigarette oil storage bottle includes a cap 10, a bottle body 20, a base 30, a piston 40, and a liquid level monitoring component 50. The cap 10 and the base 30 are respectively disposed at both ends of the bottle body 20. The piston 40 is disposed inside the bottle body 20 and divides the interior of the bottle body 20 into an oil storage chamber 22 and an air storage chamber 24. The cap 10 has an air hole 12 that communicates with the air storage chamber 24. The base 30 has an oil passage hole 32 and an oil passage plug. The oil passage hole 32 communicates with the oil storage chamber 22, and the oil passage plug blocks the oil passage hole 32. The liquid level monitoring component 50 is disposed inside the oil storage chamber 22.
[0031] The e-cigarette reservoir bottle incorporates a piston 40 inside the bottle. The e-liquid contacts the piston 40, so as the e-liquid is consumed, it moves the piston 40. Because the cap 10 has an air vent 12 that connects to the outside, the air pressure in the air chamber 24 remains unchanged due to the piston 40's movement, preventing e-liquid leakage into the air chamber 24. Furthermore, it avoids the problem of air bubbles forming in the e-liquid storage chamber 22 due to pressure changes in the air chamber 24. A liquid level monitoring component 50 is installed in the e-liquid storage chamber 22 to monitor the e-liquid level, allowing for timely replacement before the e-liquid is depleted, preventing burning.
[0032] In this embodiment, the piston 40 is made of soft rubber material. The edge of the piston 40 is press-fitted with the inner wall of the bottle 20. On the one hand, it can maintain good sealing performance and prevent e-liquid from leaking into the air storage chamber 24 or air from entering the oil storage chamber 22. On the other hand, the soft rubber material can prevent the piston 40 from wearing and scratching the inner wall of the bottle 20 when it moves with the e-liquid, thus affecting the sealing performance.
[0033] In this embodiment, a sealing plug 60 is also included. The sealing plug 60 is disposed adjacent to the base 30, and the edge of the sealing plug 60 is interference-fitted with the bottle body 20. The sealing plug 60 may also be made of soft rubber material, which helps to maintain good sealing performance between the oil storage chamber 22 and the base 30, and prevents oil leakage or air intake in the oil storage chamber 22.
[0034] The base 30 is provided with a mounting hole 34 and a positioning flange 36. The mounting hole 34 is located in the middle of the base 30, and the positioning flange 36 is located on the inner wall of the mounting hole 34. One end of the sealing plug 60 is embedded in the mounting hole 34, and the sealing plug 60 is provided with a positioning groove 62, which is adapted to the positioning flange 36. The oil passage hole 32 is located in the middle of the sealing plug 60. The cooperation between the positioning flange 36 and the positioning groove 62 makes the base 30 and the sealing plug 60 more secure. The oil passage hole 32 is located in the middle of the sealing plug 60, which improves the sealing performance between the sealing plug 60 and the oil guide tube when the external oil guide tube is inserted into the oil storage bottle through the oil passage hole, thus preventing oil leakage or air intake.
[0035] In this embodiment, the bottle cap 10 is provided with a positioning buckle 14, which is located on the side of the bottle body 20 and has a certain gap with the bottle body 20. The free end of the positioning buckle 14 is provided with a latch 142, and the outer side of the positioning buckle 14 is provided with an anti-slip protrusion 144. The latch 142 can firmly fix the oil bottle to the electronic cigarette when it is in use, preventing movement and facilitating good communication between the oil bottle and the oil guide tube. The anti-slip protrusion 144 can provide anti-slip function when the user removes the oil bottle, which helps to provide force support for easy removal of the oil bottle and facilitates the replacement of the oil bottle.
[0036] Please see Figure 3 In this embodiment, the liquid level monitoring component 50 includes a magnetic element 51 and a Hall effect device 52. The magnetic element 51 is fixed to the end of the piston 40 that contacts the e-liquid, and the Hall effect device 52 is fixed to the sealing plug 60. The Hall effect device 52 monitors the amount of e-liquid based on the magnetic field of the magnetic element 51 sensed at a specific distance. The liquid level monitoring component 50 is electrically connected to the battery of the electronic cigarette, and the two can communicate with each other. When the piston 40 moves a certain distance with the e-liquid, the Hall effect device 52 senses the magnetic element 51. At this time, the Hall effect device 52 sends the sensed signal to the battery. The battery determines that the e-liquid in the reservoir is exhausted or low, and thus controls the extraction of e-liquid from the reservoir.
[0037] Please see Figure 3 In another embodiment, the liquid level monitoring component 50 includes a first capacitor 53 and a second capacitor 54, which are respectively disposed on the piston 40 and the sealing plug 60. The amount of e-liquid is monitored based on the capacitance value generated by the different distances between the first capacitor 53 and the second capacitor 54. The liquid level monitoring component 50 is electrically connected to the battery host of the electronic cigarette, and the two can communicate with each other. When the piston 40 moves a certain distance with the e-liquid, a certain capacitance value is generated between the first capacitor 53 and the second capacitor 54, and a signal is sent to the battery host. The battery host determines whether the e-liquid in the reservoir is exhausted or low, and thus controls the extraction of e-liquid from the reservoir.
[0038] Please see Figure 4 In another embodiment, the liquid level monitoring component 50 includes a liquid level sensor 55, which is disposed on the side wall of the oil storage chamber 22 near the sealing plug 60. The liquid level monitoring component 50 is electrically connected to the battery main unit of the electronic cigarette, and the two can communicate with each other. When the oil storage chamber 22 is full of e-liquid, the medium is e-liquid. When the piston 40 pushes the e-liquid down to the bottom of the oil storage chamber 22, the air storage chamber 24 uses air as the medium. Air and e-liquid are different media. After the liquid level sensor 55 senses the air medium, it sends a signal to the battery main unit. The battery main unit determines that the e-liquid in the oil storage chamber 22 is exhausted or low, and thus controls the extraction of oil from the oil storage bottle.
[0039] Please see Figure 5 In another embodiment, the liquid level monitoring component 50 includes a pressure sensor 56 disposed on the sealing plug 60. The pressure sensor 56 monitors the amount of e-liquid based on the pressure exerted by the e-liquid in the oil storage chamber 22 on the sealing plug 60. The liquid level monitoring component 50 is electrically connected to the battery of the electronic cigarette and the two can communicate with each other. When the oil storage chamber 22 is full, the pressure value is at its maximum. As the piston 40 descends with the e-liquid, the pressure value gradually decreases. When the liquid level drops to the bottom of the oil storage chamber 22, a minimum specific pressure value is reached. At this time, the pressure sensor 56 sends a signal to the battery, which determines whether the e-liquid in the oil storage chamber 22 is exhausted or low, and thus controls the extraction of e-liquid from the oil bottle.
[0040] Please see Figure 6 In other embodiments, the liquid level monitoring component 50 includes a mechanical tactile switch 57 disposed on the sealing plug 60. The mechanical tactile switch 57 monitors the amount of e-liquid as the piston 40 moves to touch the mechanical tactile switch 57. The liquid level monitoring component 50 is electrically connected to the battery of the electronic cigarette. When the piston 40 descends to the bottom with the e-liquid, the piston 40 will press and touch the mechanical tactile switch 57. The battery detects that the e-liquid in the oil storage chamber 22 is exhausted or low, thereby controlling the extraction of e-liquid from the oil storage bottle.
[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An electronic cigarette oil storage bottle, characterized in that, The device includes a bottle cap, a bottle body, a base, a piston, and a liquid level monitoring component. The bottle cap and the base are respectively disposed at both ends of the bottle body. The piston is disposed inside the bottle body and divides the interior of the bottle body into an oil storage chamber and an air storage chamber. The bottle cap has an air hole that communicates with the air storage chamber. The base has an oil passage hole and an oil passage plug. The oil passage hole communicates with the oil storage chamber, and the oil passage plug blocks the oil passage hole. The liquid level monitoring component is disposed inside the oil storage chamber.
2. The electronic cigarette oil storage bottle according to claim 1, characterized in that, The piston is made of soft rubber material, and the edge of the piston is press-fitted with the inner wall of the bottle.
3. The electronic cigarette oil storage bottle of claim 2, wherein, It also includes a sealing plug, which is disposed adjacent to the base and whose edge is interference-fitted with the bottle body.
4. The electronic cigarette oil storage bottle of claim 3, wherein, The base is provided with a mounting hole and a positioning flange. The mounting hole is located in the middle of the base, and the positioning flange is located on the inner wall of the mounting hole. One end of the sealing plug is embedded in the mounting hole, and the sealing plug is provided with a positioning groove that is adapted to the positioning flange. The oil passage hole is located in the middle of the sealing plug.
5. The electronic cigarette oil storage bottle of claim 4, wherein, The bottle cap is provided with a positioning buckle, which is located on the side of the bottle body and has a certain gap with the bottle body. The free end of the positioning buckle is provided with a snap, and the outer side of the positioning buckle is provided with an anti-slip protrusion.
6. The electronic cigarette oil storage bottle of claim 5, wherein, The liquid level monitoring component includes a magnetic element and a Hall effect device. The magnetic element is fixed to the end of the piston that contacts the e-liquid, and the Hall effect device is fixed to the sealing plug. The Hall effect device monitors the amount of e-liquid based on the magnetic field of the magnetic element sensed at a specific distance.
7. The electronic cigarette oil storage bottle of claim 5, wherein, The liquid level monitoring component includes a first capacitor and a second capacitor, which are respectively disposed on the piston and the sealing plug. The amount of e-liquid is monitored based on the capacitance value generated by the different distances between the first capacitor and the second capacitor.
8. The electronic cigarette oil storage bottle of claim 5, wherein, The liquid level monitoring component includes a liquid level sensor, which is disposed on the side wall of the oil storage cavity near the sealing plug.
9. The electronic cigarette oil storage bottle of claim 5, wherein, The liquid level monitoring component includes a pressure sensor, which is disposed on the sealing plug and monitors the amount of e-liquid based on the pressure exerted by the e-liquid in the oil storage chamber on the sealing plug.
10. The electronic cigarette oil storage bottle of claim 5, wherein, The liquid level monitoring component includes a mechanical tactile switch disposed on the sealing plug. The amount of e-liquid is monitored when the piston moves to touch the mechanical tactile switch due to the movement of the e-liquid.