CN220068894U - Airflow sensor and electronic cigarette thereof - Google Patents
Airflow sensor and electronic cigarette thereof Download PDFInfo
- Publication number
- CN220068894U CN220068894U CN202321201215.0U CN202321201215U CN220068894U CN 220068894 U CN220068894 U CN 220068894U CN 202321201215 U CN202321201215 U CN 202321201215U CN 220068894 U CN220068894 U CN 220068894U
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- Prior art keywords
- wall
- electrode
- electrode plate
- circuit board
- conductive
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- 239000003571 electronic cigarette Substances 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses an airflow sensor and an electronic cigarette thereof, which comprise a shell, wherein a mounting cavity is arranged in the shell, a circuit board is arranged at an end cavity port of the mounting cavity, a first electrode and a second electrode are respectively arranged at the top and the bottom of the circuit board, the shell is electrically connected with the first electrode, an electrode plate is arranged at the bottom of the circuit board in the shell, a conductive wall is integrally formed at the periphery of the electrode plate and is contacted with the second electrode, a gap is formed between the conductive wall and the cavity wall of the mounting cavity, a conductive film is arranged below the electrode plate, a connecting wall is integrally formed at the periphery of the conductive film, and the connecting wall is abutted with the cavity wall of the mounting cavity; the circuit board is used for controlling and outputting a starting signal according to the change condition of the capacitance between the conductive film and the electrode plate; through with electrode plate and conductive wall integrated into one piece and conductive film and linking wall integrated into one piece, reduced electrode assembly's part quantity, made air current sensor's overall structure simpler, reduced air current sensor holistic equipment degree of difficulty.
Description
Technical Field
The utility model relates to the technical field of electronic cigarettes, in particular to an airflow sensor.
Background
An air flow sensor is arranged in the electronic cigarette, and the working principle of the electronic cigarette is that the air pressure change caused by the air flow is acted on a film through a film type variable capacitor, so that the working state of an electric number control circuit is generated; the airflow sensor is provided with an electrode assembly, and the existing electrode assembly is generally composed of parts such as a metal polar plate, a conductive ring, a conductive film and the like, and the assembly difficulty is increased during production due to the fact that the parts are more.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present utility model is to provide an airflow sensor, which has fewer electrode assemblies, a simple overall structure, and reduced assembly difficulty for workers.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the airflow sensor comprises a shell, wherein an installation cavity is arranged in the shell, a circuit board is arranged at an end cavity port of the installation cavity, a first electrode and a second electrode are respectively arranged at the top and the bottom of the circuit board, the shell is electrically connected with the first electrode, an electrode plate is arranged at the bottom of the circuit board in the shell, a conductive wall is integrally formed at the periphery of the electrode plate and is in contact with the second electrode, a gap is formed between the conductive wall and the cavity wall of the installation cavity, a conductive film is arranged below the electrode plate, a connecting wall is integrally formed at the periphery of the conductive film, and the connecting wall is in butt joint with the cavity wall of the installation cavity; the circuit board is used for controlling and outputting a starting signal according to the change condition of the capacitance value between the conductive film and the electrode plate.
In the air flow sensor, an insulating ring is arranged in the gap, and the inner wall and the outer wall of the insulating ring are respectively abutted to the conductive wall and the cavity wall of the mounting cavity.
In the air flow sensor, a conducting wall is formed by extending the top of the shell towards the direction of the first electrode, and the conducting wall is contacted with the first electrode.
In the air flow sensor, at least one air vent is arranged on the circuit board and the electrode plate.
In the air flow sensor, an insulating backing ring is arranged between the electrode plate and the conductive film, and the top and the bottom of the insulating backing ring are respectively abutted to the conductive wall and the connecting wall.
In the air flow sensor, a dustproof filter screen is arranged at an end cavity opening of the mounting cavity, which is far away from the circuit board.
The utility model also provides an electronic cigarette comprising the airflow sensor.
The beneficial effects are that:
the utility model provides an airflow sensor, wherein the electrode plate and the conductive wall are integrally formed into one electrode part of an electrode assembly, the conductive film and the connecting wall are integrally formed into the other electrode part of the electrode assembly, and the number of parts of the electrode assembly is greatly reduced through the arrangement, so that the overall structure of the airflow sensor is simpler, and when the airflow sensor is assembled, only two electrodes are respectively arranged in the mounting cavity, so that the overall assembly difficulty of the airflow sensor is reduced; in addition, through with conductive film with the integrated setting of linking wall, very big improvement the intensity of electrode plate self, equally, through conductive film with the integrated setting of linking wall, improved conductive film overall structure's intensity to this reinforcing electrode plate with conductive film's durability and reliability.
Drawings
FIG. 1 is a schematic diagram of an exploded structure of an airflow sensor according to the present utility model;
fig. 2 is a schematic diagram of an internal structure of an airflow sensor according to the present utility model.
Description of main reference numerals: 1-shell, 11-mounting cavity, 12-conducting wall, 2-circuit board, 21-first electrode, 3-electrode plate, 31-conducting wall, 32-vent, 4-conducting film, 41-connecting wall, 5-insulating backing ring, 6-insulating ring, 7-dustproof filter screen.
Detailed Description
The utility model provides an airflow sensor and an electronic cigarette thereof, and the utility model is further described in detail below with reference to the accompanying drawings and examples in order to make the purposes, technical schemes and effects of the utility model clearer and more definite. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the azimuth or positional relationship indicated by the terms "middle", "inside", "outside", etc. are the azimuth or positional relationship of the present utility model based on the drawings, and are merely for convenience of description of the present utility model and simplification of the description. In addition, the terms "first," "second," "third," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Referring to fig. 1 to 2, the present utility model provides an airflow sensor, including a housing 1, a mounting cavity 11 is provided in the housing 1, a circuit board 2 is provided at an end cavity port of the mounting cavity 11, a first electrode 21 and a second electrode (not shown in the drawings) are provided at the top and bottom of the circuit board 2, the housing 1 is electrically connected to the first electrode 21, an electrode plate 3 is provided at the bottom of the circuit board 2 in the housing 1, a conductive wall 31 is integrally formed at the periphery of the electrode plate 3, the conductive wall 31 contacts with the second electrode, a gap is formed between the conductive wall 31 and the cavity wall of the mounting cavity 11, a conductive film 4 is provided below the electrode plate 3, a connecting wall 41 is integrally formed at the periphery of the conductive film 4, and the connecting wall 41 abuts against the cavity wall of the mounting cavity 11; the circuit board 2 is used for controlling and outputting a starting signal according to the change condition of the capacitance value between the conductive film 4 and the electrode plate 3.
The electrode plate 3 and the conductive wall 31 are integrally formed into one electrode part of the electrode assembly, the conductive film 4 and the connecting wall 41 are integrally formed into the other electrode part of the electrode assembly, and the number of components of the electrode assembly is greatly reduced through the arrangement, so that the overall structure of the air flow sensor is simpler, and when the air flow sensor is assembled, only two electrodes are respectively arranged in the mounting cavity 11, so that the overall assembly difficulty of the air flow sensor is reduced; in addition, by integrally providing the conductive film 4 and the connection wall 41, the strength of the electrode plate 3 itself is greatly improved, and similarly, by integrally providing the conductive film 4 and the connection wall 41, the strength of the entire structure of the conductive film 4 is improved, thereby enhancing the durability and reliability of the electrode plate 3 and the conductive film 4.
By forming a gap between the conductive wall 31 and the wall of the mounting chamber 11 to electrically isolate the electrode plate 3 from the housing 1, the electrode plate 3 is prevented from communicating with the conductive film 4.
In actual use, when the air flows from the electrode plate 3 to the conductive film 4, the conductive film 4 is convexly deformed in a direction away from the electrode plate 3, so that the distance between the conductive film 4 and the electrode plate 3 is increased, even if the capacitance between the conductive film and the electrode plate is reduced, at this time, the electric signals generated on the electrode plate 3 and the conductive film 4 are respectively conducted to the second electrode and the first electrode 21 through the conductive wall 31 and the connecting wall 41, and when the change of the capacitance is detected by the circuit board 2, the electronic cigarette is judged to have the air suction action, and the starting signal is output to control the electronic cigarette to execute the corresponding action.
The direction of the air flow is caused by the inhalation action of the user; for example: when the suction action is caused from one end of the circuit board 2, the airflow flows from bottom to top to the circuit board 2; when the suction action is caused from the end far away from the circuit board 2, the direction of the air flow flows from one end of the circuit board 2 to the other end of the sensor body; the relative position of the conductive film 4 and the electrode plate 3 is required to be adjusted according to the setting direction of the airflow sensor in the electronic cigarette, and only the electrode plate 3 and the conductive film 4 are required to be sequentially set along the airflow direction in the sensor body.
It should be understood that a certain distance exists between the conductive film 4 and the electrode plate 3, so that a variable capacitance structure is formed, and the capacitance value between the conductive film 4 and the electrode plate varies according to the distance between the conductive film and the electrode plate.
The housing 1, the conductive wall 31, and the connection wall 41 are made of a conductive material, such as a metal material including a copper material, an aluminum material, and an iron material, and a conductive compound including a conductive plastic and a conductive rubber.
It should be noted that, the circuit board 2 adopts the existing airflow detection circuit to perform operation control, such as an airflow detection circuit composed of a capacitor to be detected, a reference capacitor, a frequency generating circuit, a frequency dividing circuit and a timing circuit; or the control circuit composed of a singlechip is used for controlling the work; the specific circuit structure and the working principle are all the prior art and are not described in detail herein.
Note that, the conductive wall 31 and the second electrode may be adhesively connected; the connecting wall 41 and the cavity wall of the installation cavity 11 can be in adhesive connection; the circuit board 2 and the mounting cavity 11 may be connected by adhesion.
As shown in fig. 1 to 2, further, an insulating ring 6 is disposed in the gap, and an inner wall and an outer wall of the insulating ring 6 respectively abut against the conductive wall 31 and a cavity wall of the mounting cavity 11; by providing the insulating ring 6 to further improve the electrical isolation between the conductive wall 31 and the mounting cavity 11, the conductive wall 31 and the electrode plate 3 are separated from the housing 1 in two cavities, and the conductive positions of two polarities are wrapped.
The insulating ring 6 may have an insulating ring structure such as a rubber ring, a silica gel ring, or a plastic ring.
As shown in fig. 1 to 2, further, a conducting wall 12 is formed on the top of the housing 1 extending toward the first electrode 21, and the conducting wall 12 contacts the first electrode 21; by providing the conductive wall 12, the housing 1 may be in electrical communication with the first electrode 21, so that the conductive film 4 is in electrical communication with the first electrode 21, and the housing 1 may be electrically connected to the circuit board 2 without using other electrical connection fittings such as conductive wires.
As shown in fig. 1 to 2, further, at least one ventilation hole 32 is formed on each of the circuit board 2 and the electrode board 3; the fluidity of the air flow in the air flow sensor is improved by providing the ventilation holes 32 on the circuit board 2 and the electrode plate 3.
As shown in fig. 1 to 2, further, an insulating backing ring 5 is disposed between the electrode plate 3 and the conductive film 4, and the top and bottom of the insulating backing ring 5 are respectively abutted against the conductive wall 31 and the connection wall 41; the insulating spacer 5 separates the contact position between the conductive wall 31 and the connection wall 41, so as to electrically isolate the electrode plate 3 from the conductive film 4, thereby achieving an insulating effect.
In one embodiment, the insulating grommet 5 may be a grommet having insulation properties such as a rubber grommet, a silicone grommet, a plastic grommet, or the like.
As shown in fig. 1 to 2, further, an end cavity port of the mounting cavity 11, which is far away from the circuit board 2, is provided with a dust-proof filter screen 7; because the pollutant can enter the electronic cigarette when the user inhales, the dust-proof filter screen 7 is arranged to prevent small particle pollutant, large particle pollutant or saliva in the environment from entering the airflow sensor, and the service life of the airflow sensor is prolonged.
The utility model also provides an electronic cigarette comprising the airflow sensor.
In summary, the electrode plate 3 and the conductive wall 31 are integrally formed into one electrode portion of the electrode assembly, the conductive film 4 and the connecting wall 41 are integrally formed into the other electrode portion of the electrode assembly, and by the arrangement, the number of components of the electrode assembly is greatly reduced, so that the overall structure of the air flow sensor is simpler, and when the air flow sensor is assembled, only two electrodes are required to be respectively arranged in the mounting cavity 11, thereby reducing the overall assembly difficulty of the air flow sensor; in addition, by integrally providing the conductive film 4 and the connection wall 41, the strength of the electrode plate 3 itself is greatly improved, and similarly, by integrally providing the conductive film 4 and the connection wall 41, the strength of the entire structure of the conductive film 4 is improved, thereby enhancing the durability and reliability of the electrode plate 3 and the conductive film 4.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present utility model and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model as defined in the following claims.
Claims (7)
1. The airflow sensor is characterized by comprising a shell, wherein an installation cavity is arranged in the shell, a circuit board is arranged at an end cavity port of the installation cavity, a first electrode and a second electrode are respectively arranged at the top and the bottom of the circuit board, the shell is electrically connected with the first electrode, an electrode plate is arranged at the bottom of the circuit board in the shell, a conductive wall is integrally formed at the periphery of the electrode plate and is in contact with the second electrode, a gap is formed between the conductive wall and the cavity wall of the installation cavity, a conductive film is arranged below the electrode plate, a connecting wall is integrally formed at the periphery of the conductive film, and the connecting wall is in butt joint with the cavity wall of the installation cavity; the circuit board is used for controlling and outputting a starting signal according to the change condition of the capacitance value between the conductive film and the electrode plate.
2. An air flow sensor according to claim 1, characterized in that an insulating ring is arranged in the gap, the inner and outer walls of which are in abutment with the conductive wall and the cavity wall of the mounting cavity, respectively.
3. An airflow sensor according to claim 1 wherein the top of the housing extends in the direction of the first electrode to form a conductive wall, the conductive wall being in contact with the first electrode.
4. An air flow sensor according to claim 1, wherein the circuit board and the electrode plate are each provided with at least one ventilation hole.
5. An air flow sensor according to claim 1, wherein an insulating backing ring is arranged between the electrode plate and the conductive film, and the top and bottom of the insulating backing ring are respectively abutted against the conductive wall and the connecting wall.
6. An airflow sensor according to claim 1 wherein the mounting cavity is provided with a dust screen at an end cavity port remote from the circuit board.
7. An electronic cigarette, characterized in that the electronic cigarette comprises an airflow sensor according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321201215.0U CN220068894U (en) | 2023-05-16 | 2023-05-16 | Airflow sensor and electronic cigarette thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321201215.0U CN220068894U (en) | 2023-05-16 | 2023-05-16 | Airflow sensor and electronic cigarette thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220068894U true CN220068894U (en) | 2023-11-24 |
Family
ID=88827822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321201215.0U Active CN220068894U (en) | 2023-05-16 | 2023-05-16 | Airflow sensor and electronic cigarette thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220068894U (en) |
-
2023
- 2023-05-16 CN CN202321201215.0U patent/CN220068894U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |