Electronic cigarette
By introducing oil storage cotton and return air channels into the electronic cigarette, the e-liquid supply is automatically adjusted by capillary force and gravity, which solves the problem of slow oil filling caused by negative pressure in the oil supply chamber, and realizes continuous oil supply to the atomizing component and prevents leakage and dry burning.
Patent Information
- Application Number
- CN202520147116.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-21
AI Technical Summary
In large-capacity e-cigarettes, the e-liquid filling chamber may become slow or even stop due to negative pressure during use, making it impossible to continuously supply e-liquid to the atomizing components.
An oil-collecting cotton and a return air channel are introduced into the atomizing device. The oil-collecting cotton draws e-liquid into the atomizing components through capillary force and gravity. Air enters the return air channel through the vent to reduce negative pressure and form a liquid seal to regulate air pressure balance and ensure a continuous supply of e-liquid.
It achieves rapid and continuous supply of e-liquid within the atomizing component, avoiding leakage and dry burning of the atomizing component, and ensuring consistent atomization.
Smart Images
Figure CN223886250U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of atomization technology, in particular to an electronic cigarette. BACKGROUND
[0002] The large-capacity electronic cigarette generally comprises an oil supply chamber, which stores a large amount of tobacco tar. The oil supply chamber is generally closed, thereby preventing the tobacco tar from leaking out. When the oil supply chamber is assembled to the electronic cigarette, the oil supply chamber communicates with the oil storage chamber of the electronic cigarette, and the oil supply chamber can continuously supply the oil storage chamber with tobacco tar. The power supply device is electrically connected to the atomization assembly. After the atomization assembly is powered on, the heat generated by the atomization assembly atomizes the tobacco tar absorbed by the atomization assembly, and the aerosol flows out through the suction nozzle communicating with the atomization chamber, for the user to smoke.
[0003] However, during use, as the tobacco tar in the oil supply chamber continuously flows into the oil storage chamber, the gas in the oil supply chamber decreases due to the closed structure of the oil supply chamber, resulting in the formation of negative pressure in the oil supply chamber, the speed of oil injection becomes slow, and even the oil injection stops. CONTENT OF THE UTILITY MODEL
[0004] The main purpose of the present application is to provide an electronic cigarette, which solves the technical problem of slow or even stopped oil injection caused by negative pressure.
[0005] To achieve the above-mentioned purpose, the present application provides an electronic cigarette, which comprises:
[0006] an oil supply chamber storing tobacco tar;
[0007] an atomization device comprising a shell and an atomization assembly arranged in the shell, the bottom end of the shell communicating with the bottom end of the oil supply chamber; and
[0008] an oil storage cotton sleeved between the shell and the atomization assembly, the oil storage cotton being used to draw the tobacco tar and deliver the tobacco tar to the atomization assembly;
[0009] wherein, the top end of the shell is provided with a gas passage hole opposite to the oil storage cotton, a gas return channel is formed between the oil storage cotton and the shell, and the gas return channel communicates with the gas passage hole and the oil supply chamber.
[0010] Optionally, the top end of the gas return channel extends to the middle part of the oil storage cotton, the upper half of the oil storage cotton is sealingly connected to the shell, and the top end of the oil storage cotton is higher than the top end of the atomization assembly.
[0011] Optionally, the flow area of the gas return channel is greater than or equal to 0.1mm 2 and less than or equal to 4mm 2 .
[0012] Optionally, the return air passage is formed by outwardly recessing an inner wall of the shell; or the return air passage is formed by inwardly recessing an outer wall of the oil storage cotton.
[0013] Optionally, the return air passage comprises a first sub-passage and a second sub-passage in communication with each other, the first sub-passage is located below the oil storage cotton, the first sub-passage is annular and extends along a circumferential direction of the oil storage cotton, and the second sub-passage is located at one side of the oil storage cotton, the second sub-passage is strip-shaped and extends along an axial direction of the oil storage cotton.
[0014] Optionally, the shell comprises a first sealing member, a mounting cylinder and a second sealing member; the first sealing member is arranged on a top end of the mounting cylinder, and the air passage is formed in the first sealing member; the second sealing member is arranged on a bottom end of the mounting cylinder, an upper surface of the second sealing member is provided with a boss, a top end of the boss abuts against a bottom end of the oil storage cotton, the first sub-passage is formed by an inner wall of the mounting cylinder, the upper surface of the second sealing member and a side surface of the boss, and the second sub-passage is formed by outwardly recessing the inner wall of the mounting cylinder, and a bottom end of the second sub-passage is connected to the first sub-passage.
[0015] Optionally, the number of the second sub-passage is at least two, and the at least two second sub-passage are arranged along a circumferential direction of the oil storage cotton.
[0016] Optionally, an oil guiding passage is formed by outwardly extending a bottom end of the shell, a fixing passage is formed by outwardly extending a bottom end of the oil supply chamber, the fixing passage is sleeved on an outer wall of the oil guiding passage, and the oil guiding passage is in communication with the oil supply chamber.
[0017] Optionally, the return air passage extends to a bottom of the oil guiding passage.
[0018] Optionally, a flow cross-sectional area of the oil guiding passage is greater than or equal to 1mm 2 and less than or equal to 50mm 2 .
[0019] In the electronic cigarette, under the action of gravity of the tobacco tar and capillary force of the oil storage cotton, the oil storage cotton can absorb the tobacco tar in the oil supply chamber, air enters the atomization device through the air passage, and then passes through the dry oil storage cotton and the return air passage to enter the oil supply chamber, thereby slowing down the increasing speed of the internal negative pressure of the oil supply chamber. Thus, the tobacco tar in the oil supply chamber can flow into the atomization device relatively quickly and continuously.
[0020] When the oil storage cotton is wetted to a certain degree, under the action of the surface tension of the tobacco tar, the air return channel forms a liquid seal to prevent air from entering, so that the gravity of the tobacco tar, the capillary force of the oil storage cotton and the pressure in the oil supply chamber are in a balanced state, at this time the tobacco tar in the oil supply chamber no longer flows to the atomization device. Thus, when the atomization assembly is not working, the electronic cigarette of the present application can avoid the occurrence of liquid leakage.
[0021] When the user smokes, the tobacco tar in the atomization assembly is consumed, and the atomization assembly begins to continue to draw the tobacco tar in the oil storage cotton, so that the saturation of the tobacco tar in the oil storage cotton decreases, the liquid seal formed by the air return channel is broken, and air returns to the inside of the oil supply chamber, the air pressure in the oil supply chamber rises, and the tobacco tar in the oil supply chamber begins to flow into the atomization device again. By continuously drawing the tobacco tar from the oil storage cotton, the oil storage cotton can always maintain a relatively wet state (in the presence of tobacco tar in the oil supply chamber), thereby ensuring sufficient supply of tobacco tar in the atomization assembly, thereby avoiding dry burning of the atomization assembly.
[0022] In short, the electronic cigarette of the present application can automatically adjust the supply of tobacco tar in the atomization device, thereby ensuring the consistency of atomization, preventing liquid leakage and avoiding dry burning of the atomization assembly. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained from the structures shown in the drawings without creative labor for those skilled in the art.
[0024] Figure 1 EXPLANATION OF THE DRAWINGS Figure 1 ;
[0025] Figure 2 EXPLANATION OF THE DRAWINGS Figure 1 ; Figure 2
[0026] Figure 3 EXPLANATION OF THE DRAWINGS Figure 1 ;
[0027] BRIEF DESCRIPTION OF DRAWINGS
[0028]
[0029]
[0030] The implementation of the present application, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present application will be clearly and completely described 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, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0032] It should be noted that all direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications also change accordingly.
[0033] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" throughout the text includes three solutions, for example, A and / or B includes A technical solution, B technical solution, and A and B simultaneously meet the technical solution; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person of ordinary skill in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope claimed by the present application.
[0034] The present application provides an electronic cigarette, the electronic cigarette includes an oil supply bin, an atomization device and an oil storage cotton; the oil supply bin stores tobacco tar; the atomization device includes a shell and an atomization assembly arranged in the shell, and the bottom end of the shell is communicated with the bottom end of the oil supply bin; the oil storage cotton is sleeved between the shell and the atomization assembly, and is used for drawing tobacco tar and delivering the tobacco tar to the atomization assembly; wherein, the top end of the shell is provided with a ventilation hole opposite to the oil storage cotton, and a back gas channel is formed between the oil storage cotton and the shell, and the back gas channel is communicated with the ventilation hole and the oil supply bin.
[0035] In the electronic cigarette of the present application, under the action of the gravity of the tobacco tar and the capillary force of the oil storage cotton, the oil storage cotton can draw the tobacco tar in the oil supply chamber, air enters the atomization device through the air passage, and then passes through the dry oil storage cotton and the air return passage to enter the oil supply chamber, thereby slowing down the increasing speed of the internal negative pressure of the oil supply chamber. Thus, the tobacco tar in the oil supply chamber can flow into the atomization device relatively quickly and continuously. When the oil storage cotton is wetted to a certain degree, under the action of the surface tension of the tobacco tar, the air return passage forms a liquid seal to prevent air from entering, so that the gravity of the tobacco tar, the capillary force of the oil storage cotton and the pressure in the oil supply chamber are in a balanced state, at which time the tobacco tar in the oil supply chamber no longer flows to the atomization device. Thus, when the atomization assembly is not working, the electronic cigarette of the present application can avoid the situation of liquid leakage. When the user inhales, the tobacco tar in the atomization assembly is consumed, and the atomization assembly begins to continue to draw the tobacco tar in the oil storage cotton, so that the saturation of the tobacco tar in the oil storage cotton decreases, the liquid seal formed by the air return passage is broken, air returns to the inside of the oil supply chamber, the air pressure in the oil supply chamber rises, and the tobacco tar in the oil supply chamber begins to flow into the atomization device again. Through the continuous drawing of the tobacco tar by the oil storage cotton, the oil storage cotton can always maintain a relatively wet state (in the case that there is tobacco tar in the oil supply chamber), thereby ensuring sufficient supply of the tobacco tar in the atomization assembly, so as to avoid dry burning of the atomization assembly.
[0036] In short, the electronic cigarette of the present application can automatically adjust the supply of the tobacco tar in the atomization device, thereby ensuring the consistency of atomization, preventing liquid leakage and avoiding dry burning of the atomization assembly.
[0037] Hereinafter, the specific structure of the electronic cigarette will be mainly described.
[0038] Please refer to Figures 1 to 3 The electronic cigarette 100 of the present application comprises an oil supply chamber 110. The oil supply chamber 110 stores tobacco tar. The oil supply chamber 110 can be made of transparent or semi-transparent material, so that the content of the tobacco tar in the oil supply chamber 110 can be observed directly. Of course, the oil supply chamber 110 can also be made of opaque material.
[0039] Please refer to Figures 1 to 3 The electronic cigarette 100 of the present application comprises an atomization device 120, which comprises a shell 121 and an atomization assembly 122 arranged in the shell 121. The shell 121 is communicated with the oil supply chamber 110, and the tobacco tar in the oil supply chamber 110 can flow into the shell 121. The atomization assembly 122 can atomize the tobacco tar in the shell 121 into aerosol that can be inhaled.
[0040] Please refer to Figures 1 to 3 The bottom end of the shell 121 is communicated with the bottom end of the oil supply chamber 110. Thus, the position of the oil supply chamber 110 does not need to be adjusted, and when the electronic cigarette 100 is placed vertically, the tobacco tar in the oil supply chamber 110 will automatically flow into the shell 121 under the action of gravity.
[0041] Referring to Figures 1 to 3 , the electronic cigarette 100 includes an oil storage cotton 130, which is sleeved between the shell 121 and the atomization assembly 122, and is used to draw and deliver the tobacco tar to the atomization assembly 122. Under the action of the capillary force of the oil storage cotton 130, the tobacco tar flowing into the bottom end of the oil storage cotton 130 flows in the anti-gravity direction. Under the joint action of the gravity of the tobacco tar, the capillary force of the oil storage cotton 130 and the negative pressure in the oil supply chamber 110, the tobacco tar cannot flow to (or saturate and infiltrate) the upper half of the oil storage cotton 130, which can not only avoid the oil storage cotton 130 from drawing too much tobacco tar and reduce the occurrence of oil leakage, but also enable the dry upper half of the oil storage cotton 130 to ventilate.
[0042] Referring to Figures 1 to 3 , the top end of the shell 121 is provided with a ventilation hole 123 opposite to the oil storage cotton 130, which is in communication with the outside atmosphere, and the air flowing through the ventilation hole 123 can pass through the dry part of the oil storage cotton 130. The shape of the ventilation hole 123 can be circular, oval, track-shaped, polygonal or special-shaped, which is not limited.
[0043] The number of the ventilation hole 123 can be one. Referring to Figures 1 to 3 , the number of the ventilation hole 123 can be at least two, so that the communication effect of the ventilation hole 123 with the outside atmosphere is better, and the effect of adjusting the air pressure in the oil supply chamber 110 is better.
[0044] Referring to Figures 1 to 3 , a gas return channel 140 is formed between the oil storage cotton 130 and the shell 121, which is in communication with the ventilation hole 123 and the oil supply chamber 110. The air enters the atomization device 120 through the ventilation hole 123, and then passes through the dry oil storage cotton 130 and the gas return channel 140 in sequence to enter the oil supply chamber 110, which slows down the increasing speed of the internal negative pressure of the oil supply chamber 110, so as to automatically adjust the supply of the tobacco tar in the atomization device 120, ensure the consistency of atomization, prevent liquid leakage and avoid dry burning of the atomization assembly 122.
[0045] Referring to Figures 1 to 3 , the top end of the gas return channel 140 extends to the middle part of the oil storage cotton 130, the upper half of the oil storage cotton 130 is sealingly connected to the shell 121, and the top end of the oil storage cotton 130 is higher than the top end of the atomization assembly 122. In this way, the upper half of the oil storage cotton 130 can ventilate, the height of the gas return channel 140 is relatively matched with the height of the tobacco tar in the oil storage cotton 130, so as to better adjust the air pressure of the oil supply chamber 110.
[0046] The flow area of the gas return channel 140 is greater than or equal to 0.1 mm 2 and less than or equal to 4 mm 2. Thus, the air return effect of the air return passage 140 is relatively good. Further, the flow cross-sectional area of the air return passage 140 can be 0.1mm 2 ~ 3.6mm 2 , 0.4mm 2 ~ 1mm 2 , 1.4mm 2 ~ 2mm 2 , 3mm 2 ~ 3.6mm 2 , 1mm 2 ~ 2.5mm 2 , 1.5mm 2 ~ 2mm 2 or 0.5mm 2 ~ 1.5mm 2 , etc. Further, the flow cross-sectional area of the air return passage 140 can be 0.1mm 2 , 0.4mm 2 , 0.5mm 2 , 1mm 2 , 1.4mm 2 , 1.5mm 2 , 2mm 2 , 2.5mm 2 , 3mm 2 , 3.6mm 2 or 4mm 2 , etc.
[0047] Please refer to Figures 1 to 3 , the air return passage 140 can be formed by the inner wall of the shell 121 being concave outward. Of course, the air return passage 140 can also be formed by the outer wall of the oil storage cotton 130 being concave inward.
[0048] Please refer to Figures 1 to 3 , the air return passage 140 includes a first sub-passage 141 and a second sub-passage 142 that are in communication with each other, the first sub-passage 141 is located below the oil storage cotton 130, the first sub-passage 141 is annular and extends along the circumferential direction of the oil storage cotton 130, and the second sub-passage 142 is located on one side of the oil storage cotton 130, the second sub-passage 142 is strip-shaped and extends along the axial direction of the oil storage cotton 130. Thus, the air return passage 140 can achieve a relatively good air return effect. Specifically, the second sub-passage 142 guides the air flowing from the oil storage cotton 130 to the first sub-passage 141, and the first sub-passage 141 then guides the air to the oil supply chamber 110.
[0049] Please refer to Figures 1 to 3The outer shell 121 comprises a first sealing member 124, a mounting cylinder 125 and a second sealing member 126; the first sealing member 124 is arranged on the top end of the mounting cylinder 125, and the air vent hole 123 is arranged on the first sealing member 124; the second sealing member 126 is arranged on the bottom end of the mounting cylinder 125, and the upper surface of the second sealing member 126 is provided with a boss 127, the top end of the boss 127 abuts against the bottom end of the oil storage cotton 130, the first sub-passage 141 is formed by the inner wall of the mounting cylinder 125, the upper surface of the second sealing member 126 and the side surface of the boss 127, and the second sub-passage 142 is formed by the outward recess of the inner wall of the mounting cylinder 125, and the bottom end of the second sub-passage 142 is connected with the first sub-passage 141. Thus, through the arrangement of the first sealing member 124, the mounting cylinder 125, the second sealing member 126, the boss 127 and the oil storage cotton 130, the effect of automatically adjusting the supply of the tobacco tar in the atomization device 120 can be realized.
[0050] Please refer to Figures 1 to 3 The number of the second sub-passage 142 is at least two, and the at least two second sub-passage 142 are arranged along the circumference of the oil storage cotton 130. Thus, the second sub-passage 142 can better guide the air flowing from the oil storage cotton 130, so as to realize a better air return effect.
[0051] Please refer to Figures 1 to 3 The bottom end of the outer shell 121 outwardly extends to form an oil guiding passage 128, the bottom end of the oil supply bin 110 outwardly extends to form a fixing passage 111, the fixing passage 111 is sleeved on the outer wall of the oil guiding passage 128, and the oil guiding passage 128 is communicated with the oil supply bin 110. Thus, the oil guiding passage 128 can guide and limit the flow of the tobacco tar, so that the tobacco tar in the oil supply bin 110 can better flow into the outer shell 121; meanwhile, the oil guiding passage 128 is formed by the extension of the outer shell 121, the fixing passage 111 is formed by the extension of the oil supply bin 110, and the oil guiding passage 128 is sleeved with the fixing passage 111, so that the connection between the outer shell 121 and the oil supply bin 110 is relatively close, and the leakage of the tobacco tar is less likely to occur.
[0052] Please refer to Figures 1 to 3 Figures 1 to 3 Figures 1 to 3 The air return passage 140 extends to the bottom of the oil guiding passage 128. Thus, the air return passage 140 has a good air return pressurization effect on the oil supply bin 110.
[0053] The flow area of the oil guiding passage 128 can be greater than or equal to 1mm 2 and less than or equal to 50mm 2 . Thus, the oil guiding effect of the oil guiding passage 128 is good. Further, the flow area of the oil guiding passage 128 can be 1mm 2 ~ 40mm 2 , 9mm 2 ~ 25mm 2 , 16mm 2~ 36mm 2 , 4mm 2 ~ 49mm 2 , 25mm 2 ~ 28mm 2 or 25mm 2 ~ 30mm 2 . Still further, the flow passage 128 can have a flow cross-sectional area of 1mm 2 , 4mm 2 , 9mm 2 , 16mm 2 , 25mm 2 , 28mm 2 , 30mm 2 , 36mm 2 , 40mm 2 , 49mm 2 or 50mm 2 , etc.
[0054] The preferred embodiments of the present application are described above, and are not intended to limit the patent scope of the present application. Any equivalent structure variations made according to the present application, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.
Claims
1. An electronic cigarette, characterized in that, include: The fuel tank stores e-liquid; An atomizing device includes a housing and an atomizing component disposed within the housing, wherein the bottom end of the housing is connected to the bottom end of the oil supply chamber; as well as An oil-absorbing cotton is fitted between the outer shell and the atomizing component. The oil-absorbing cotton is used to absorb the e-liquid and transfer the e-liquid to the atomizing component. The top of the outer shell has a vent hole opposite to the oil storage cotton, and a return air channel is formed between the oil storage cotton and the outer shell. The return air channel connects the vent hole and the oil supply chamber.
2. The electronic cigarette according to claim 1, characterized in that, The top of the return air channel extends to the middle of the oil storage cotton, the upper half of the oil storage cotton is sealed to the outer shell, and the top of the oil storage cotton is higher than the top of the atomizing component.
3. The electronic cigarette according to claim 1, characterized in that, The cross-sectional area of the return air channel is greater than or equal to 0.1 mm. 2 and less than or equal to 4mm 2 .
4. The electronic cigarette according to claim 1, characterized in that, The return air channel is formed by an outward recess in the inner wall of the outer shell; or the return air channel is formed by an inward recess in the outer wall of the oil-storing cotton.
5. The electronic cigarette according to claim 4, characterized in that, The return air channel includes a first sub-channel and a second sub-channel that are interconnected. The first sub-channel is located below the oil storage cotton and is annular and extends circumferentially along the oil storage cotton. The second sub-channel is located on one side of the oil storage cotton and is strip-shaped and extends axially along the oil storage cotton.
6. The electronic cigarette according to claim 5, characterized in that, The outer casing includes a first sealing element, a mounting cylinder, and a second sealing element; the first sealing element covers the top end of the mounting cylinder, and the vent hole extends through the first sealing element; the second sealing element covers the bottom end of the mounting cylinder, and a boss is provided on the upper surface of the second sealing element, the top end of the boss abutting against the bottom end of the oil-retaining cotton; the first sub-channel is formed by the inner wall of the mounting cylinder, the upper surface of the second sealing element, and the side of the boss; the second sub-channel is formed by the outwardly recessed inner wall of the mounting cylinder, and the bottom end of the second sub-channel is connected to the first sub-channel.
7. The electronic cigarette according to claim 5, characterized in that, The number of the second sub-channels is at least two, and the at least two second sub-channels are arranged circumferentially along the oil storage cotton.
8. The electronic cigarette according to any one of claims 1 to 7, characterized in that, The bottom end of the outer shell extends outward to form an oil guiding channel, and the bottom end of the oil supply chamber extends outward to form a fixed channel. The fixed channel is fitted onto the outer wall of the oil guiding channel, and the oil guiding channel is connected to the oil supply chamber.
9. The electronic cigarette according to claim 8, characterized in that, The return air passage extends to the bottom of the oil guide passage.
10. The electronic cigarette according to claim 8, characterized in that, The cross-sectional area of the oil guide channel is greater than or equal to 1 mm². 2 and less than or equal to 50mm 2 .