CN220384303U - Airflow sensor and electronic cigarette thereof - Google Patents
Airflow sensor and electronic cigarette thereof Download PDFInfo
- Publication number
- CN220384303U CN220384303U CN202321778008.1U CN202321778008U CN220384303U CN 220384303 U CN220384303 U CN 220384303U CN 202321778008 U CN202321778008 U CN 202321778008U CN 220384303 U CN220384303 U CN 220384303U
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- conductive
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- ring
- diaphragm
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- 239000003571 electronic cigarette Substances 0.000 title claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000002245 particle 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
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 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
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an airflow sensor and an electronic cigarette thereof, which comprise a shell, a polar plate part and a diaphragm assembly, wherein a mounting cavity is arranged in the shell; the diaphragm assembly comprises a conductive ring and a conductive diaphragm arranged in the conductive ring, and conductive sheets are respectively arranged on two sides of the conductive diaphragm; the mounting cavity is internally provided with a circuit board, the polar plate part and the conducting ring are respectively and electrically connected with the circuit board, and the circuit board is used for detecting the change condition of the capacitance value of the capacitor cavity groove and outputting a control signal; when the conductive film is used, the conductive thin sheets are respectively arranged on the two sides of the conductive film to improve the integral strength of the film structure, and the conductive thin sheets are arranged on the two sides of the conductive film to keep the surface tension of the two sides of the conductive film consistent, so that the problem that the conductive film is deformed abnormally and torn abnormally due to the fact that the tension difference occurs on the two sides of the conductive film during deformation is avoided.
Description
Technical Field
The utility model relates to the technical field of electronic cigarettes, in particular to an airflow sensor.
Background
The capacitive device in the existing airflow sensor basically consists of a deformable diaphragm and a metal polar plate, and in the airflow or sound vibration process, the shape of the deformable diaphragm or the distance between the deformable diaphragm and the polar plate is changed, so that the change of a capacitance value occurs, and related function control is further carried out.
In practical application, as the surface of the membrane is possibly contacted with various chemical materials and components, the tension difference is easy to appear on the two sides of the membrane, the tension difference acts on the joint of the membrane and the metal fixing component, the adhesion part of the membrane and the metal fixing component is easy to loosen, and the membrane is easy to deform abnormally.
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 can maintain the tension of the two sides of the conductive film during deformation, and avoid the problems of abnormal deformation, abnormal tearing, etc. caused by the influence of the tension difference.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the airflow sensor comprises a shell, a polar plate part and a diaphragm assembly, wherein a mounting cavity is arranged in the shell, the polar plate part and the diaphragm assembly are respectively arranged in the mounting cavity, and a capacitor cavity groove is formed between the polar plate part and the diaphragm assembly; the diaphragm assembly comprises a conductive ring and a conductive diaphragm arranged in the conductive ring, and conductive sheets are respectively arranged on two sides of the conductive diaphragm; the mounting cavity is internally provided with a circuit board, the polar plate part and the conducting ring are respectively and electrically connected with the circuit board, and the circuit board is used for detecting the change condition of the capacitance value of the capacitor cavity groove and outputting a control signal.
In the air flow sensor, the conductive sheets are metal conductive sheets, and the thicknesses of the two conductive sheets are consistent.
In the air flow sensor, a first electrode and a second electrode are respectively arranged at the top and the bottom of the circuit board; the electrode plate part comprises an electrode plate and an insulating ring, the insulating ring is sleeved on the periphery of the electrode plate, the insulating ring is abutted with the cavity wall of the mounting cavity, and the electrode plate is in contact with the second electrode; the conducting ring is abutted with the cavity wall of the mounting cavity, the top of the shell extends towards the direction of the first electrode to form a conducting wall, and the conducting wall is in contact 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 diaphragm.
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 application also provides an electronic cigarette comprising the airflow sensor.
The beneficial effects are that:
the utility model provides an airflow sensor, when in use, the two sides of a conductive diaphragm are respectively provided with a conductive sheet so as to improve the integral strength of a film structure, and the two sides of the conductive diaphragm are respectively provided with the conductive sheets so as to keep the surface tension of the two sides of the conductive diaphragm consistent, thereby avoiding the tension difference of the two sides caused by deformation of the conductive diaphragm and preventing the problems of abnormal deformation, abnormal tearing and the like of the conductive diaphragm during operation.
Drawings
Fig. 1 is a schematic diagram of an exploded 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-polar plate portion, 31-electrode plate, 32-insulating ring, 33-bleeder vent, 4-diaphragm subassembly, 41-conducting ring, 42-conducting diaphragm, 43-conducting thin sheet, 5-insulating backing ring, 6-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, the present utility model provides an airflow sensor, which includes a housing 1, a plate portion 3 and a diaphragm assembly 4, wherein a mounting cavity 11 is provided in the housing 1, the plate portion 3 and the diaphragm assembly 4 are respectively provided in the mounting cavity 11, and a capacitor cavity is formed between the plate portion 3 and the diaphragm assembly 4; the diaphragm assembly 4 comprises a conductive ring 41 and a conductive diaphragm 42 arranged in the conductive ring 41, and conductive sheets 43 are respectively arranged on two sides of the conductive diaphragm 42; the circuit board 2 is disposed in the mounting cavity 11, the electrode plate portion 3 and the conductive ring 41 are respectively electrically connected with the circuit board 2, and the circuit board 2 is configured to detect a change condition of a capacitance value of the capacitor cavity (not shown in the figure) and output a control signal.
When the film is used, the strength of the whole film structure is improved by arranging the conductive thin sheets 43 on the two sides of the conductive film 42 respectively, and the surface tension of the two sides of the conductive film 42 is kept consistent by arranging the conductive thin sheets 43 on the two sides of the conductive film 42, so that the tension difference on the two sides caused by deformation of the conductive film 42 is avoided, and the problems of abnormal deformation, abnormal tearing and the like of the conductive film 42 during operation are prevented.
When the electronic cigarette works, when air flows from the pole plate part 3 to the conductive diaphragm 42, the conductive diaphragm 42 is convexly deformed in a direction away from the pole plate part 3, so that a capacitance cavity between the conductive diaphragm 42 and the pole plate part 3 is increased, even if the capacitance between the conductive diaphragm and the pole plate part 3 is reduced, at the moment, electric signals generated on the pole plate part 3 and the conductive diaphragm 42 are conducted to the circuit board 2, and when the circuit board 2 detects the capacitance change, the electronic cigarette is judged to have an air suction action, and a starting signal is output to control the electronic cigarette to execute corresponding actions.
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 positions of the conductive film 42 and the electrode part need to be adjusted according to the setting direction of the airflow sensor in the electronic cigarette, and only the electrode part and the conductive film 42 need to be sequentially arranged along the airflow direction in the sensor body.
The housing 1 is 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 such as 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.
As shown in fig. 1, further, the conductive sheets 43 are metal conductive sheets, and the thickness of two conductive sheets 43 is consistent; in production, the conductive sheet 43 is attached to the conductive film 42 by electroplating, spraying, or the like, and the conductive sheet 43 may be a copper foil conductive sheet (copper foil is a common conductive sheet with good conductivity and plasticity; aluminum foil conductive sheet (aluminum foil is a common metal conductive sheet, has good conductive performance and light weight property, and is commonly used in the fields of capacitors, batteries, food packaging and the like); silver colloid conductive thin sheet (silver colloid is a metal conductive material with excellent conductivity, is in the form of colloid or paste, and can be coated or stuck on the part needing to conduct electricity; conductive ink conductive flakes (conductive ink is a liquid material containing conductive particles, and can be used for printing conductive lines or conductive patterns, and is suitable for the fields of flexible electronics, intelligent labels, sensors and the like); in addition, the surface tension of both sides of the conductive film 42 is kept uniform by providing two conductive sheets 43 of uniform thickness.
As shown in fig. 1, further, the top and bottom of the circuit board 2 are provided with a first electrode 21 and a second electrode (not shown in the figure), respectively; the electrode plate part 3 comprises an electrode plate 31 and an insulating ring 32, the insulating ring 32 is sleeved on the periphery of the electrode plate 31, the insulating ring 32 is abutted against the cavity wall of the mounting cavity 11, and the electrode plate 31 is contacted with the second electrode; the conductive ring 41 is abutted against the cavity wall of the mounting cavity 11, a conductive wall 12 is formed on the top of the housing 1 in a manner extending toward the first electrode 21, and the conductive wall 12 is in contact with the first electrode 21; in use, the electrode plate 31 is electrically isolated from the housing 1 by the insulating ring 32 and electrically connected to the second electrode by contact, while the conductive ring 41 is electrically connected to the first electrode 21 by the conductive wall 12, thereby electrically connecting the conductive film to the first electrode 21, and the housing 1 can be electrically connected to the circuit board 2 without using other electrical connection fittings such as conductive wires.
The insulating ring 32 may have an insulating ring structure such as a rubber ring, a silicone ring, or a plastic ring.
As shown in fig. 1, further, at least one ventilation hole 33 is formed on each of the circuit board 2 and the electrode plate 31; the fluidity of the air flow in the air flow sensor is improved by providing the ventilation holes 33 on the circuit board 2 and the electrode plate 31.
As shown in fig. 1, further, an insulating backing ring 5 is disposed between the electrode plate 31 and the conductive film 42; the electrode plate 31 and the conductive membrane 42 are separated by the insulating backing ring 5 at the butt joint position, so that the electrode plate 31 and the conductive membrane 42 are electrically isolated, and an insulating effect is achieved.
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, further, a dustproof filter screen 6 is disposed at an end cavity port of the mounting cavity 11 away from the circuit board 2; because the pollutant can enter the electronic cigarette when the user inhales, the dust-proof filter screen 6 is arranged to prevent small particle pollutant, large particle pollutant or saliva in the environment from entering the air flow sensor, and the service life of the air flow sensor is prolonged.
The application also provides an electronic cigarette comprising the airflow sensor.
In summary, when in use, the conductive sheets 43 are respectively disposed on the two sides of the conductive film 42 to improve the strength of the whole film structure, and the conductive sheets 43 are disposed on the two sides of the conductive film 42 to keep the surface tension of the two sides of the conductive film 42 consistent, so as to avoid the tension difference between the two sides of the conductive film 42 caused by deformation, and prevent the conductive film 42 from abnormal deformation and abnormal tearing during operation.
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, a polar plate part and a diaphragm assembly, wherein a mounting cavity is arranged in the shell, the polar plate part and the diaphragm assembly are respectively arranged in the mounting cavity, and a capacitor cavity groove is formed between the polar plate part and the diaphragm assembly; the diaphragm assembly comprises a conductive ring and a conductive diaphragm arranged in the conductive ring, and conductive sheets are respectively arranged on two sides of the conductive diaphragm; the mounting cavity is internally provided with a circuit board, the polar plate part and the conducting ring are respectively and electrically connected with the circuit board, and the circuit board is used for detecting the change condition of the capacitance value of the capacitor cavity groove and outputting a control signal.
2. An airflow sensor according to claim 1 wherein the conductive sheet is a metallic conductive sheet and the thickness of both conductive sheets is uniform.
3. An airflow sensor according to claim 1 wherein the top and bottom of the circuit board are provided with a first electrode and a second electrode, respectively; the electrode plate part comprises an electrode plate and an insulating ring, the insulating ring is sleeved on the periphery of the electrode plate, the insulating ring is abutted with the cavity wall of the mounting cavity, and the electrode plate is in contact with the second electrode; the conducting ring is abutted with the cavity wall of the mounting cavity, the top of the shell extends towards the direction of the first electrode to form a conducting wall, and the conducting wall is in contact with the first electrode.
4. A gas flow sensor according to claim 3, wherein the circuit board and the electrode plate are each provided with at least one vent.
5. A gas flow sensor as claimed in claim 3, wherein an insulating grommet is provided between said electrode plate and said diaphragm assembly.
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 |
|---|---|---|---|
| CN202321778008.1U CN220384303U (en) | 2023-07-06 | 2023-07-06 | Airflow sensor and electronic cigarette thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321778008.1U CN220384303U (en) | 2023-07-06 | 2023-07-06 | Airflow sensor and electronic cigarette thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220384303U true CN220384303U (en) | 2024-01-26 |
Family
ID=89601219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321778008.1U Active CN220384303U (en) | 2023-07-06 | 2023-07-06 | Airflow sensor and electronic cigarette thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220384303U (en) |
-
2023
- 2023-07-06 CN CN202321778008.1U patent/CN220384303U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |