Quantitative oil supply electronic cigarette cartridge
By introducing a moving piston and push rod mechanism into the e-cigarette cartridge, the variable volume of the fuel tank is achieved, solving the problem of atomized material leakage during consumption and ensuring the sealing of the atomized material and stable fuel supply.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-10
AI Technical Summary
The problem of leakage of atomized material due to air expansion during the consumption of existing e-cigarette cartridges is particularly noticeable when there are changes in ambient air pressure and temperature, and during the smoking process.
Design a metered e-cigarette cartridge by setting a movable piston and push rod in the oil cup assembly. The push rod pushes and pulls the piston to change the oil tank volume, thereby achieving metered extrusion of atomized material and preventing air from entering the oil tank.
It effectively prevents atomized material leakage, maintains the airtightness of the atomized material in the oil tank, reduces air entry, and ensures that the atomized material does not leak during consumption.
Smart Images

Figure CN224098767U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of electronic cigarettes, and particularly relates to an electronic cigarette cartridge for quantitative oil supply. BACKGROUND
[0002] At present, the cartridge oil tank of the cartridge-replaceable electronic cigarette is a cavity with a fixed volume. With the consumption of the atomized substance (such as tobacco tar) in the oil tank, the proportion of the air in the oil tank will gradually increase. Since the volume of the air is relatively easy to expand and compress, the atomized substance will leak in the following three situations: 1. When the ambient air pressure is less than the internal air pressure of the oil tank, the atomized substance in the oil tank will be squeezed out; 2. When the air pressure in the air channel is less than the internal air pressure of the oil tank during smoking, the atomized substance will be squeezed out; 3. When the ambient temperature rises, the internal air will expand and the atomized substance will be squeezed out. The leakage amount in the above three situations is proportional to the amount of air in the oil tank. The more air in the oil tank, the more serious the leakage. CONTENT OF THE UTILITY MODEL
[0003] In order to solve the above technical problems, the present application provides an electronic cigarette cartridge for quantitative oil supply, which comprises an oil cup assembly, an atomizing core assembly arranged in the oil cup assembly, and a bottom cover mounted at the bottom of the oil cup assembly. A movable piston is movably arranged in the oil cup assembly, and an oil tank for containing the atomized substance is formed between the movable piston and the oil cup assembly. A push rod is arranged through the bottom cover, and the end of the push rod is connected to the bottom of the movable piston.
[0004] Preferably, the oil cup assembly comprises a cigarette holder and a cup body connected to the bottom of the cigarette holder, and the bottom cover is mounted at the bottom of the cup body, and the movable piston is movably arranged in the cup body.
[0005] Preferably, a sealing gasket is arranged around the movable piston, and the sealing gasket abuts against the inner wall of the cup body.
[0006] Preferably, the atomizing core assembly comprises an atomizing core inner tube and an atomizing core outer tube sleeved around the outer periphery of the atomizing core inner tube, and an oil storage cotton is arranged between the atomizing core inner tube and the atomizing core outer tube. An oil guide cotton is arranged on the inner side of the atomizing core inner tube, and an atomizing core heating wire is connected to the inner side of the oil guide cotton.
[0007] Preferably, a fixing seat is arranged below the atomizing core heating wire in the atomizing core inner tube, and the fixing seat is used for fixing the lead wire of the atomizing core heating wire.
[0008] Preferably, a plug is arranged between the atomizing core inner tube and the atomizing core outer tube, and the plug is arranged at the bottom below the oil storage cotton.
[0009] Preferably, the bottom cover is provided with an electrode connected to the lead wire of the atomizing core heating wire.
[0010] From the above, the application can obtain the following beneficial effects: by setting the atomizing core assembly in the oil cup assembly, installing the bottom cover for fixing the atomizing core assembly at the bottom of the oil cup assembly, movably setting the moving piston in the oil cup assembly, forming the oil reservoir containing the atomized product between the moving piston and the oil cup assembly, penetrating the push rod through the bottom cover, and connecting the end of the push rod to the bottom of the moving piston. Further, the push rod pushes and pulls the moving piston, changes the volume of the oil reservoir, and quantitatively extrudes the atomized product by the push rod according to the consumed amount. As the atomized product is consumed in the operation of the electronic cigarette, the piston moves upward by the push rod, which can avoid the entry of air due to the consumption of the atomized product in the oil reservoir, so as to keep the oil reservoir only with the atomized product, reduce the entry of air, and avoid the leakage of the atomized product. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description are only part of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0012] Fig. 1 The schematic diagram of the electronic cigarette cartridge for quantitatively supplying oil according to the embodiment of the present application is shown in the figure.
[0013] Fig. 2 The schematic diagram of the electronic cigarette cartridge for quantitatively supplying oil according to the embodiment of the present application is shown in the figure.
[0014] Fig. 3 The schematic diagram of the electronic cigarette cartridge for quantitatively supplying oil according to the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0016] EMBODIMENT
[0017] In order to solve the above technical problems, the present embodiment provides an electronic cigarette cartridge for quantitatively supplying oil, which comprises an oil cup assembly, an atomizing core assembly, a bottom cover for fixing the atomizing core assembly, a moving piston, a push rod, and a power supply. Figs. 1-3As shown, the oil cup assembly 10, the atomizing core assembly 30 arranged in the oil cup assembly 10, the bottom cover 20 arranged at the bottom of the oil cup assembly 10 and used for fixing the atomizing core assembly 30, the moving piston 40 movably arranged in the oil cup assembly 10, the oil storage 60 formed between the moving piston 40 and the oil cup assembly 10 and used for containing the atomized substance, the push rod 50 arranged through the bottom cover 20 and connected to the bottom of the moving piston 40. Further, the moving piston 40 is pushed and pulled by the push rod 50, so as to change the volume of the oil storage, thereby changing the fixed-volume oil storage into the variable-volume oil storage 60. The atomized substance is quantitatively extruded by the push rod according to the consumed amount. With the consumption of the atomized substance in the operation of the electronic cigarette, the piston is moved upward by the push rod 50, so as to avoid the entry of air due to the consumption of the atomized substance in the oil storage 60, thereby keeping only the atomized substance in the oil storage 60 and reducing the entry of air to avoid the leakage of the atomized substance.
[0018] Specifically, the oil cup assembly 10 includes the mouthpiece 11, the cup body 12 connected to the bottom of the mouthpiece 11, the bottom cover 20 arranged at the bottom of the cup body 12, and the moving piston 40 movably arranged in the cup body 12, so as to form the oil storage 60 between the moving piston 40 and the cup body 12 and used for containing the atomized substance. The moving piston 40 is moved in the cup body 12, so as to change the volume of the oil storage 60 and avoid the leakage of the atomized substance due to the environmental air pressure, the environmental temperature, the smoking and other factors.
[0019] Further, the moving piston 40 is covered with the sealing gasket 41, and the sealing gasket 41 of the moving piston 40 abuts against the inner wall of the cup body 12. When the moving piston 40 moves in the cup body 12, the sealing gasket 41 abuts against the inner wall of the cup body 12, so as to achieve the sealing effect. The atomized substance in the oil storage 60 will not leak out from the gap between the moving piston 40 and the cup body 12, thereby achieving the sealing effect.
[0020] Specifically, the atomizing core assembly 30 includes the atomizing core inner tube 31 and the atomizing core outer tube 33 sleeved on the outer periphery of the atomizing core inner tube 31, the oil storage cotton 32 arranged between the atomizing core inner tube 31 and the atomizing core outer tube 33, the oil guide cotton 34 arranged on the inner side of the atomizing core inner tube 31, and the atomizing core heating wire 35 connected to the inner side of the oil guide cotton 34. The gap 13 is formed between the top of the atomizing core outer tube 33 and the top of the cup body 12. The atomized substance in the oil storage 60 flows into the oil storage cotton 32 between the atomizing core inner tube 31 and the atomizing core outer tube 33 through the gap 13 when the moving piston 40 is moved upward by the push rod 50. A plurality of through holes are formed below the atomizing core inner tube 31. Further, the atomized substance of the oil storage cotton 32 flows into the oil guide cotton 34 from the through holes of the atomizing core inner tube 31, and the atomized substance of the oil guide cotton 34 is heated and atomized by the atomizing core heating wire 35.
[0021] Further, the plug 37 is arranged between the atomizing core inner tube 31 and the atomizing core outer tube 33, and is located at the bottom below the oil storage cotton 32. After the atomized substance flows into the oil storage cotton 32 through the gap 13, the plug 37 blocks the bottom of the oil storage cotton 32, so as to prevent the atomized substance from flowing out from the bottom of the oil storage cotton 32.
[0022] Further, the fixing seat 36 is arranged in the atomizing core inner tube 31 below the atomizing core heating wire 35. The fixing seat 36 is used for fixing the lead wire of the atomizing core heating wire 35, and is provided with a through hole for the lead wire of the atomizing core heating wire 35 to pass through. The lead wire is fixed through the fixing seat 36. The bottom cover 20 is provided with the electrode 21 connected with the lead wire of the atomizing core heating wire 35. Then the lead wire is connected with the electrode 21. The electrode 21 is used for being connected with the battery of the electronic cigarette, so as to make the atomizing core heating wire 35 work.
[0023] In summary, the atomizing core assembly is arranged in the oil cup assembly. The bottom cover for fixing the atomizing core assembly is arranged at the bottom of the oil cup assembly. The movable piston is movably arranged in the oil cup assembly. The oil reservoir for containing the atomized substance is formed between the movable piston and the oil cup assembly. The push rod is arranged through the bottom cover, and the end of the push rod is connected to the bottom of the movable piston. Then the movable piston is pushed and pulled through the push rod. The volume of the oil reservoir is changed. The fixed volume oil reservoir is changed into the variable volume oil reservoir. Then the atomized substance is quantitatively squeezed out according to the consumed amount through the push rod. With the consumption of the atomized substance in the working of the electronic cigarette, the piston is moved upward through the push rod. The air is prevented from entering due to the consumption of the atomized substance in the oil reservoir, so as to keep the oil reservoir only with the atomized substance. The air is prevented from entering, so as to avoid the leakage of the atomized substance.
[0024] The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement within the spirit and principles of the above-mentioned embodiments shall be included in the protection scope of the technical solution.
Claims
1. A dosing electronic cartridge, characterized in that: The oil cup assembly (10) comprises a cigarette holder (11), a cup body (12) connected to the bottom of the cigarette holder (11), and a bottom cover (20) installed at the bottom of the cup body (12), and a movable piston (40) movably arranged in the oil cup assembly (10), and an oil storage chamber (60) formed between the movable piston (40) and the oil cup assembly (10) for containing atomized oil, and a push rod (50) penetrating through the bottom cover (20) and connected to the bottom of the movable piston (40).
2. The dosing electronic cartridge according to claim 1, characterized in that: The oil cup assembly (10) comprises a cigarette holder (11), a cup body (12) connected to the bottom of the cigarette holder (11), and a bottom cover (20) installed at the bottom of the cup body (12), and a movable piston (40) movably arranged in the oil cup assembly (10), and an oil storage chamber (60) formed between the movable piston (40) and the oil cup assembly (10) for containing atomized oil, and a push rod (50) penetrating through the bottom cover (20) and connected to the bottom of the movable piston (40).
3. The dosing electronic cartridge of claim 2, wherein: The movable piston (40) is surrounded by a sealing gasket (41) which abuts against the inner wall of the cup body (12).
4. The dosing electronic cartridge of claim 2, wherein: The atomizing core assembly (30) comprises an atomizing core inner tube (31) and an atomizing core outer tube (33) sleeved on the outer periphery of the atomizing core inner tube (31), and an oil storage cotton (32) is arranged between the atomizing core inner tube (31) and the atomizing core outer tube (33), and an oil guide cotton (34) is arranged inside the atomizing core inner tube (31), and an atomizing core heating wire (35) is connected inside the oil guide cotton (34), and a gap (13) is formed between the top of the atomizing core outer tube (33) and the top of the cup body (12).
5. The dosing electronic cartridge of claim 4, wherein: A fixing seat (36) is arranged below the atomizing core heating wire (35) in the atomizing core inner tube (31), and the fixing seat (36) is used for fixing the lead wire of the atomizing core heating wire (35).
6. The dosing electronic cartridge of claim 5, wherein: A plug (37) is arranged between the atomizing core inner tube (31) and the atomizing core outer tube (33), and the plug (37) is arranged at the bottom below the oil storage cotton (32).
7. The dosing electronic cartridge of claim 4, wherein: The bottom cover (20) is provided with an electrode (21) connected to the lead wire of the atomizing core heating wire (35).