CN201490998U - Miniature capacitive one-way air-conducting contact switch - Google Patents
Miniature capacitive one-way air-conducting contact switch Download PDFInfo
- Publication number
- CN201490998U CN201490998U CN200920062778XU CN200920062778U CN201490998U CN 201490998 U CN201490998 U CN 201490998U CN 200920062778X U CN200920062778X U CN 200920062778XU CN 200920062778 U CN200920062778 U CN 200920062778U CN 201490998 U CN201490998 U CN 201490998U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- metal shell
- conductive diaphragm
- contact switch
- way air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 32
- 238000004070 electrodeposition Methods 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims 1
- 239000003571 electronic cigarette Substances 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000005669 field effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
Images
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- Push-Button Switches (AREA)
Abstract
本实用新型公开了一种微型电容式单向气导接触开关，其包括一金属外壳，其设有一容置腔，该金属外壳底部设有与容置腔连通的一个以上的进气孔，该金属外壳的容置腔内依次设有导电膜片和线路板，使导电膜片正对金属外壳的进气孔，该线路板上设有一个以上的透气孔，其中，导电膜片与线路板之间具有一开关间隙，导通时，导电膜片变形与线路板形成电接触。本实用新型采用的是普通驻极体电容传声器的驻极体的结构组成，利用现有设备即可轻松实现批量化生产，结构简单，灵敏度高，成本低，有利于在电子香烟等领域中推广。
The utility model discloses a miniature capacitive one-way air-conducting contact switch, which includes a metal shell, which is provided with a containing cavity, the bottom of the metal shell is provided with one or more air inlets connected with the containing cavity, the containing cavity of the metal shell is provided with a conductive diaphragm and a circuit board in sequence, so that the conductive diaphragm is directly opposite to the air inlet of the metal shell, and the circuit board is provided with one or more air holes, wherein a switch gap is provided between the conductive diaphragm and the circuit board, and when conducting, the conductive diaphragm is deformed to form electrical contact with the circuit board. The utility model adopts the structural composition of the electret of a common electret condenser microphone, and can be easily mass-produced by using existing equipment, has a simple structure, high sensitivity, and low cost, and is conducive to promotion in the fields of electronic cigarettes and the like.
Description
Technical field
The utility model relates to a kind of contact-making switch, particularly a kind of capacitive contact-making switch.
Background technology
Contact-making switch all has application in fields such as electronic cigarettes, and the principle of electronic cigarette is to drive atomizer by power supply, makes the atomization of liquid that contains spices, the process of smoking-simulating.Existing a kind of electronic cigarette, its mains switch is made up of switch membrane, switch base, connecting ring, fixed leg, first electrode, second electrode and conducting strip.The switch base middle part is provided with an axially extending bore and is fixed on a side of switch membrane, form first chamber, the opposite side that connecting ring is fixed on switch membrane forms second chamber, fixed leg passes the above-mentioned through hole of switch base and affixed with switch membrane, first electrode and second electrode electricity separates is fixed on switch base, and conducting strip is fixed on the fixed leg.When not carrying out the smoking action as yet, first chamber and second chamber are in poised state, and first electrode separates for electricity with second electrode; When carrying out smoking when action, the second chamber place produces negative pressure, and switch membrane drives the conducting strip that is fixed on the fixed leg to the axial motion of cigarette holder direction, and conducting strip is electrically connected with first electrode and second electrode respectively, turning circuit, the sensation of generation smog.This mains switch is highly sensitive, but complex structure, and need offer specific mould, the cost height.
Electret is one of parts of electret capacitor microphone, and itself and field-effect transistor (FET) constitute electret capacitor microphone (ECM) jointly.Electret is made up of vibrating diaphragm, fixed polar plate and the gap that forms between the two, forms the capacitance structure with quantitative electric charge like this between vibrating diaphragm and fixed polar plate.When speaking, can cause that the distance (D) between vibrating diaphragm and fixed polar plate changes, but distance (D) is not 0, according to C=ε S/D as can be known, electric capacity (C) will be changed; According to U=Q/C as can be known, voltage (U) can change, thereby causes the change in voltage at field-effect transistor two ends and produce the sound signal of telecommunication of amplification.
The utility model content
The purpose of this utility model is to provide a kind of minisize condenser type unidirectional conductance contact-making switch, and it is simple in structure, and cost is low.
To achieve these goals, the technical solution of the utility model is as follows:
The unidirectional conductance contact-making switch of minisize condenser type, it comprises a metal shell, and it is provided with a containing cavity, and this metal shell bottom is provided with the more than one air admission hole that is communicated with containing cavity; Be provided with conductive film and wiring board in the containing cavity of this metal shell successively, make the air admission hole of conductive film over against metal shell, this wiring board is provided with more than one air-vent; Wherein, has a switch gap between conductive film and the wiring board; During conducting, the conductive film distortion forms with wiring board and electrically contacts.
Above-mentioned conductive film is metal material or metallized nonmetal film.
Wiring board is located at on the one side in two above-mentioned electrode positions.
Be provided with circular insulation spacer between above-mentioned conductive film and the wiring board.
Above-mentioned wiring board offers two air-vents, and the metal shell bottom offers an air admission hole.
Above-mentioned metal shell bottom outside is bonded with Air Filter.
After adopting such scheme, owing to be disposed with conductive film and wiring board from inside to outside in the containing cavity of metal shell of the present utility model, this wiring board is provided with air-vent, this is the structure composition of the electret of common electret capacitor microphone (ECM), need not offer specific mould, utilizes existing equipment can easily realize mass production, simple in structure, highly sensitive, cost is low, helps promoting in fields such as electronic cigarette.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is a stereochemical structure decomposing schematic representation of the present utility model;
Fig. 2 is the cutaway view of the state of not conducting of the present utility model;
Fig. 3 is the cutaway view of the state of conducting of the present utility model;
Fig. 4 is an assembling schematic diagram of the present utility model.
Symbol description
1 metal shell
11 containing cavities
12 metal shells bottom
13 air admission holes
2 conductive films
3 wiring boards
31 electrode positions
32 electrode positions
4 switch gaps
5 Air Filters
6 air-vents
7 insulation spacers
Embodiment
As shown in Figures 1 to 3, be the unidirectional conductance contact-making switch of the utility model minisize condenser type, comprise a metal shell 1, it is provided with a containing cavity 11, this metal shell bottom 12 is provided with the more than one air admission hole 13 that is communicated with containing cavity, an air admission hole 13 is set in the present embodiment, and 12 outsides, metal shell 1 bottom are bonded with Air Filter 5.Be disposed with conductive film 2 and wiring board 3 in the containing cavity 11 of metal shell 1, conductive film 2 has a switch gap 4 over against the air admission hole 12 of metal shell 1 between conductive film 2 and metal shell 1.
Wherein, conductive film 2 is metal material or metallized nonmetal film, is provided with circular insulation spacer 7 between conductive film 2 and the following wiring board 3.
In the present embodiment, during conducting, air-flow advances from air admission hole 13, goes out from air- vent 6, and 4 one sides produce negative pressure to conductive film 2 in the gap, and conductive film 2 is forced to be out of shape with two electrode positions 31 and 32 of wiring board 3 and is electrically connected.After the disconnection, the both sides air pressure of conductive film 2 state that restores balance, conductive film 2 separates with wiring board 3 electricity.
The assemble method of the unidirectional conductance contact-making switch of the utility model minisize condenser type embodiment is the containing cavity 11 interior conductive films 2 of placing earlier of metal shell 1, metal shell 1 and conductive film 2 usefulness conductive viscoses are fixed, then place insulation spacer 7 and wiring board 3 from inside to outside successively, encapsulate then, stick Air Filter 5 in metal shell 1 bottom at last, with the top edge edge sealing of metal shell 1, become a finished product, as shown in Figure 4 at last.
Key point of the present utility model is to be made of metal shell 1, conductive film 2, switch gap 4 and wiring board 3 at least, and metal shell is provided with air admission hole 13, and wiring board is provided with air-vent 6, and two electrode positions 31 of wiring board 3 and 32 are positioned at one side.When there is negative pressure in a side of conductive film 2, conductive film 2 is forced to distortion and contacts with metal shell 1, formation electrically contacts, simple in structure, highly sensitive, need not offer specific mould, utilize existing equipment can easily realize mass production, cost is low, helps promoting in fields such as electronic cigarette.
The above is preferred embodiment of the present utility model only, is not the restriction to this case design, and all equivalent variations of doing according to the design key of this case all fall into the protection range of this case.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920062778XU CN201490998U (en) | 2009-08-21 | 2009-08-21 | Miniature capacitive one-way air-conducting contact switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920062778XU CN201490998U (en) | 2009-08-21 | 2009-08-21 | Miniature capacitive one-way air-conducting contact switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201490998U true CN201490998U (en) | 2010-05-26 |
Family
ID=42429863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920062778XU Expired - Fee Related CN201490998U (en) | 2009-08-21 | 2009-08-21 | Miniature capacitive one-way air-conducting contact switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201490998U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011033396A3 (en) * | 2009-09-18 | 2011-06-16 | Minilogic Device Corporation Ltd. | Electronic cigarette |
| US10420374B2 (en) | 2009-09-18 | 2019-09-24 | Altria Client Services Llc | Electronic smoke apparatus |
-
2009
- 2009-08-21 CN CN200920062778XU patent/CN201490998U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011033396A3 (en) * | 2009-09-18 | 2011-06-16 | Minilogic Device Corporation Ltd. | Electronic cigarette |
| CN102631029A (en) * | 2009-09-18 | 2012-08-15 | 微创高科有限公司 | Electronic cigarette |
| CN102631029B (en) * | 2009-09-18 | 2015-01-14 | 卓智微电子有限公司 | Electronic cigarette device and airflow and flow direction detector of electronic cigarette |
| US9072321B2 (en) | 2009-09-18 | 2015-07-07 | Minilogic Device Corporation Ltd. | Electronic smoke |
| US10420374B2 (en) | 2009-09-18 | 2019-09-24 | Altria Client Services Llc | Electronic smoke apparatus |
| US11974610B2 (en) | 2009-09-18 | 2024-05-07 | Altria Client Services Llc | Electronic smoke apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20160821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |