CN202373494U - Contact structure of triggered switch - Google Patents
Contact structure of triggered switch Download PDFInfo
- Publication number
- CN202373494U CN202373494U CN2011205549426U CN201120554942U CN202373494U CN 202373494 U CN202373494 U CN 202373494U CN 2011205549426 U CN2011205549426 U CN 2011205549426U CN 201120554942 U CN201120554942 U CN 201120554942U CN 202373494 U CN202373494 U CN 202373494U
- Authority
- CN
- China
- Prior art keywords
- contact
- elasticity movable
- fixed
- movable contact
- rubber blanket
- 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
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- Push-Button Switches (AREA)
Abstract
The utility model discloses a contact structure of a triggered switch. The contact structure of the triggered switch comprises a printed circuit board (1) and a rubber cushion (2), wherein fixed contacts (3) are arranged on the printed circuit board (1), the rubber cushion (2) is paved on the printed circuit board (1), the printed circuit board (1) is connected with an elastic moving contact (4), one end of the elastic moving contact (4) is connected with one fixed contact (3), the other end of the elastic moving contact (4) is arranged above the other fixed contact (3), and a press contact of the rubber cushion (2) is arranged above the elastic moving contact (4). According to the contact structure of the triggered switch, the metal spring piece is arranged above the fixed contacts, one end of the metal spring piece is connected with one fixed contact, the other end of the metal spring piece is arranged above the other fixed contact, therefore contacts on the rubber cushion can be omitted, the problem of poor contact caused by contact coating in manufacturing processes of rubber cushions is solved, the contact is enabled to be more reliable, and the contact resistance can be reduced by utilization of the metal spring piece simultaneously.
Description
Technical field
The utility model relates to a kind of contact structures of touch switch, belongs to trigger-type push-button switch technical field.
Background technology
The trigger-type contact switch is more common during we live; Like mobile phone key, TV remote controller key etc.; Existing trigger-type contact switch structure is as shown in Figure 2; Its elasticity movable contact spring is to be substituted by the carbon granules that is connected on the rubber blanket, when rubber blanket presses down, and the carbon granules completion conducting that contacts with two fixed contacts simultaneously.But there is following problem in existing this structure, and rubber blanket and carbon granules are synchronous making, with the phenomenon of Mould Machining regular meeting's generation constantly rubber with the carbon granules coating, will cause contact to be lost efficacy like this; Simultaneously in use also be prone to take place following problem, 1, the silica gel of making rubber blanket has precipitate and coat the elasticity movable contact spring, influence the sound contact and contact; 2, carbon granules contact easy abrasion, the contact is low useful life; 3, the carbon granules contact resistance is big.
Summary of the invention
The technical problem that the utility model will solve is, provides that a kind of contact stabilization is good, the contact structures of long service life, touch switch that contact resistance is low, can overcome the deficiency of prior art.
The technical scheme of the utility model is: it comprises wiring board and rubber blanket; Be provided with fixed contact in the circuit board; Rubber blanket is laid in the circuit board, is connected with the elasticity movable contact spring in the circuit board, and an end of elasticity movable contact spring is connected with fixed contact; In the top of another fixed contact, the contact of rubber blanket is positioned at the top of elasticity movable contact spring to the other end at a distance from the room.
Described elasticity movable contact spring is the metal spring sheet, is processed with contact in the end of elasticity movable contact spring.
The separated vacancy of the silica gel contact of rubber blanket is in the top of elasticity movable contact spring.
Compare with prior art; The utility model is through being provided with metal clips above fixed contact, an end of metal clips is connected with a fixed contact, and the separated room of the other end is in another fixed contact top; So just can save the movable contact spring (carbon granules) that is positioned on the rubber blanket; Thereby avoided that the elasticity movable contact spring is formed living loose contact problem by coating in the rubber blanket manufacturing process, cut to make conducting more reliable, adopted sheet metal can also reduce contact resistance simultaneously.When disconnecting state, the elasticity movable contact spring with push contact and be in released state, the silica gel precipitate can not impacted the elasticity movable contact spring.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the press-key structure sketch map of existing contact contact switch.
Embodiment
Embodiment 1: as shown in Figure 1; On wiring board 1, be provided with fixed contact 3; Rubber blanket 2 is laid on the wiring board 1, on wiring board 1, is connected with elasticity movable contact spring 4, and described elasticity movable contact spring 4 is the metal spring sheet; End at elasticity movable contact spring 4 is processed with contact; Elasticity movable contact spring 4 with the syndeton of wiring board is: an end of elasticity movable contact spring 4 is connected with one of them fixed contact 3, and in the top of another fixed contact 3, rubber blanket 2 pushes the separated room of contact in the top of elasticity movable contact spring 4 to the other end simultaneously at a distance from the room.Press rubber blanket 2 during use, the contact of pushing of rubber blanket 2 presses down the other end of elasticity movable contact spring 4 to contact with another fixed contact 3 and accomplishes conducting.
Claims (3)
1. the contact structures of a touch switch; It comprises wiring board (1) and rubber blanket (2), on wiring board (1), is provided with fixed contact (3), and rubber blanket (2) is laid on the wiring board (1); It is characterized in that: on wiring board (1), be connected with elasticity movable contact spring (4); One end of elasticity movable contact spring (4) is connected with fixed contact (3), and in the top of another fixed contact (3), the silica gel contact of rubber blanket (2) is positioned at the top of elasticity movable contact spring (4) to the other end at a distance from the room.
2. the contact structures of touch switch according to claim 1, it is characterized in that: described elasticity movable contact spring (4) is a sheet metal, is processed with contact in the end of elasticity movable contact spring (4).
3. the contact structures of touch switch according to claim 1 is characterized in that: the silica gel contact of rubber blanket (2) at a distance from the vacancy in the top of elasticity movable contact spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205549426U CN202373494U (en) | 2011-12-27 | 2011-12-27 | Contact structure of triggered switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205549426U CN202373494U (en) | 2011-12-27 | 2011-12-27 | Contact structure of triggered switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373494U true CN202373494U (en) | 2012-08-08 |
Family
ID=46597188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205549426U Expired - Fee Related CN202373494U (en) | 2011-12-27 | 2011-12-27 | Contact structure of triggered switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015054917A1 (en) * | 2013-10-16 | 2015-04-23 | 李起武 | Miniature camera |
| US11694862B2 (en) | 2019-11-11 | 2023-07-04 | Defond Electech Co., Ltd. | Lock-off mechanism for locking-off a trigger assembly of an electric device |
-
2011
- 2011-12-27 CN CN2011205549426U patent/CN202373494U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015054917A1 (en) * | 2013-10-16 | 2015-04-23 | 李起武 | Miniature camera |
| US11694862B2 (en) | 2019-11-11 | 2023-07-04 | Defond Electech Co., Ltd. | Lock-off mechanism for locking-off a trigger assembly of an electric device |
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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: 20120808 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |