CN200986874Y - Push-button switch - Google Patents
Push-button switch Download PDFInfo
- Publication number
- CN200986874Y CN200986874Y CN 200620125760 CN200620125760U CN200986874Y CN 200986874 Y CN200986874 Y CN 200986874Y CN 200620125760 CN200620125760 CN 200620125760 CN 200620125760 U CN200620125760 U CN 200620125760U CN 200986874 Y CN200986874 Y CN 200986874Y
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- CN
- China
- Prior art keywords
- contacting plate
- moving contacting
- fixed terminal
- button switch
- push
- 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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Abstract
A pushbutton switch consists of an insulator body with a house, a fixed terminal molded in one with the insulator, a first movable contact plate and a second movable contact plate installed in the house and an insulator film which is adhered to the first movable contact plate. The second movable contact plate is above the first movable contact plate. The insulator body is equipped with a house dent on the corner, on which the fixed terminal forms into at least one second fixed contact. The second movable contact plate is equipped with wrist on the house dent mentioned above. The wrist is equipped with bumps extending downwards. The bumps, which are arranged suspended above the second fixed contact, are normally separated from the second fixed contact. Only when the button switch is squeezed, the bumps and the second fixed contact is contacting with each other, which can lower the elastic pressure on the wrist and assure the electrical connection of the switch.
Description
[technical field]
The utility model relates to a kind of push-button switch, relates in particular to the push-button switch on a kind of guidance panel that is used for various electronic installations.
[background technology]
Along with the fast development of electronic industry, as the push-button switch of electronic product common part, obtained significant progress, the push-button switch that uses on the existing market in order to adapt to the continuous development of industry, need be made improvement constantly.A kind of needs that for example just circulating on the market are now made the push-button switch of further improvement, this push-button switch comprises shell with resettlement section, be configured in central fixed contact on this shell resettlement section inner bottom surface, be configured in the peripheral fixed contact in this central authorities fixed contact outside, and is mounted on following travelling contact and last travelling contact in the shell.Last travelling contact is positioned at the top of travelling contact down, the middle position of two travelling contacts all is provided with the central contact portion of a dome shape, above-mentioned peripheral position of going up travelling contact stretches out and is provided with a plurality of flat wrists that are, the corner of above-mentioned shell resettlement section is provided with the recess of accommodating of corresponding above-mentioned wrist, this accommodates recess is each wrist that is used for accommodating above-mentioned travelling contact with bending and stretching, accommodating in the recess the above-mentioned peripheral fixed contact that configuration is permanently connected to above-mentioned wrist at least at this, is to adopt the dull and stereotyped direct way of contact that contacts flat board between above-mentioned wrist and the above-mentioned peripheral fixed contact.
But, for the central contact portion of the central contact portion that makes travelling contact and following travelling contact contacts, need the central contact portion of last travelling contact is applied a pressing force, thereby make the wrist of travelling contact also produce pressure to the peripheral fixed contact that it is permanently connected to, in the course of time, will make wrist that peripheral fixed contact is produced elastic fatigue, thereby cause the gap occurring between wrist and the peripheral fixed contact, make wrist and peripheral fixed contact the situation of loose contact occur, thereby influence the useful life of electronic product.
Given this, be necessary to design a kind of new push-button switch to address the above problem in fact.
[summary of the invention]
The technical problems to be solved in the utility model is to prevent that the situation of loose contact from appearring in push-button switch, thereby improves the useful life of push-button switch.
In order to solve the problems of the technologies described above, design a kind of new push-button switch, comprise insulating body with resettlement section, with the integrated fixed terminal of insulating body, but but be loaded on first moving contacting plate and second moving contacting plate in the resettlement section, but and adhere to insulation film on first moving contacting plate, but but second moving contacting plate is positioned at the top of first moving contacting plate, insulating body is provided with in its corner and accommodates recess, fixed terminal is formed with at least one second fixed contact in the above-mentioned recess place of accommodating, but the corresponding above-mentioned recess of accommodating of second moving contacting plate is provided with wrist, wherein, described wrist is provided with the salient point that protrudes out downwards, the unsettled top of being located at second fixed contact of these salient points, described salient point is normality with second fixed contact and separates.
Compared to prior art, but the utility model push-button switch is provided with the salient point that is suspended on above second fixed contact at the wrist of its second moving contacting plate, this salient point and above-mentioned second fixed contact just are in contact with one another after push-button switch is subjected to push action, can reduce elastic pressure to wrist, guaranteed the excellent electrical property connection, made the utility model push-button switch can be durable in use.
[description of drawings]
Fig. 1 is the three-dimensional combination figure of the utility model push-button switch.
Fig. 2 is the three-dimensional exploded view of the utility model push-button switch.
But Fig. 3 is the stereogram of first moving contacting plate of the utility model push-button switch.
But Fig. 4 is the stereogram of second moving contacting plate of the utility model push-button switch.
Fig. 5 is the stereogram of the insulation film of the utility model push-button switch.
Fig. 6 is the schematic diagram that the utility model push-button switch does not have state when operating
The action schematic diagram of state when Fig. 7 is first section connection of the utility model push-button switch.
The action schematic diagram of state when Fig. 8 is second section connection of the utility model push-button switch.
[embodiment]
Describe the embodiment of the utility model push-button switch 100 in detail below in conjunction with accompanying drawing.
See also Fig. 1 to Fig. 8, but but but but the utility model push-button switch 100 comprise insulating body 2, and insulating body 2 integrated fixed terminals 3, first moving contacting plate 4 that is installed in insulating body 2 and second moving contacting plate 5, at the insulation film 6 between two moving contacting plates 4,5, be located at the button 7 above two moving contacting plates 4,5 and be covered on shielding casing 8 on the insulating body 2;
Insulating body 2 is roughly square-shaped, its top is provided with opening, make its inside have a resettlement section 21, this resettlement section 21 by forms in insulating body 2 central authorities be roughly toroidal and by outside to inside successively recessed base portion 2 11, reach and be connected with this base portion 211 and four corners of 21 are provided with the recess 212 of accommodating that is roughly square shape respectively and are formed in the resettlement section.The middle position of above-mentioned base portion 211 is provided with an arc convex surface that projects upwards 2111, and be provided with around the circular concave part 2112 of being roughly of arc convex surface 2111 at the upper surface of base portion 211, two accepting grooves 2113 and a compression zone 2114 are uniformly also distributing on this concave part 2112; Accommodate recess 212 according to its function for above-mentioned four, can be subdivided into first of homonymy accommodates second of recess 212a and another homonymy and accommodates recess 212b, each is accommodated recess 212 and all is provided with horizontal support portion 2121, and first accommodates recess 212a and also be extended with the holding section 2122 that is step-like setting with support portion 2121 in its 2121 lower ends, support portion.In addition, the center position of a pair of relative side of insulating body 2 is respectively equipped with buckle projection 22, and the center position of another relative side is concaved with and holds slot part 23.In addition, be provided with positioning cylinder 24 (with reference to Fig. 6) in the bottom surface of insulating body 2.
Fixed terminal 3 can be divided into first fixed terminal 31, second fixed terminal 32, the 3rd fixed terminal 33 and the 4th fixed terminal 34.Wherein, first fixed terminal 31 and second fixed terminal 32 have respectively and are contained in first second fixed contact 311,321 of accommodating recess 212a, and the holding section 2122 that these second fixed contacts 311,321 and first are accommodated among the recess 212a offsets; The 3rd fixed terminal 33 is provided with first fixed contact 331 in the accepting groove 2113 that is contained in above-mentioned base portion 211 concave parts 2112; The 4th fixed terminal 34 has the central fixed contact 341 of being located at circular arc protuberance 2111 tops, and the 4th fixed terminal 34 is connected with second fixed terminal 32 and becomes holistic terminal structure.In addition, on above-mentioned insulating body 2 opposite external side faces, form and draw from above-mentioned central fixed contact 341 and first, second fixed contact 331,311,321, and the tie point outside foreign side protrudes in insulating body 342,332,312,322.
But first moving contacting plate 4 is made as toroidal, includes first central portion 41 that is the dome shape.
But second moving contacting plate 5 comprises second central portion 51 that is the dome shape, but is outward extended with four wrists 52 that correspondence is accommodated recess 212 by the peripheral position of second moving contacting plate 5.But the external diameter between the above-mentioned wrist 52 forms the diameter bigger than the external diameter of above-mentioned first moving contacting plate 4.In addition, the free end of each wrist 52 is made as positioning part 521, these positioning parts 521 can be positioned on the support portion 2121 of insulating body 2, on each wrist 52, be provided with the salient point 522 that protrudes out downwards, unsettled respectively second fixed contact 311,321 or second of being located at of these salient points 522 is accommodated the top of recess 212b, and the salient point 522 of being located at second fixed contact, 311,321 tops is normality with second fixed contact 311,321 and separates.
But when being placed in first moving contacting plate 4 in the above-mentioned resettlement section 21, with its first central portion 41 be contained in resettlement section 21 on the 341 relative configurations of central fixed contact, but and the peripheral position of first moving contacting plate 4 and above-mentioned first fixed contact 331 are permanently connected to.
The roughly rounded shape of insulation film 6, but adhere on first moving contacting plate 4, but and first moving contacting plate 4 covered fully, thereby but but make and under any state, all can not occur situation about directly contacting between first moving contacting plate 4 and second moving contacting plate 5.
But second moving contacting plate 5 is positioned at the top of insulation film 6, but the wrist 52 of second moving contacting plate 5 is contained in accommodating in the recess 212 of insulating body 2 resettlement sections 21.
Above 21 opening parts of insulating body 2 resettlement sections, but the button that resin plate constituted 7 that is roughly square shape that covers above second moving contacting plate 5 is installed, but wrist 52 pressure holdings that this button 7 can make second moving contacting plate 5 are on above-mentioned support portion 2121 of accommodating recess 212.
During use, when the button 7 of the utility model push-button switch 100 is subjected to a downward pressure, but second central portion 51 of being located at second moving contacting plate 5 of button 7 belows is pressed, make this second central portion 51 the elasticity counter-rotating occur, be in contact with one another and separate to become by normality between the unsettled salient point 522 of being located at second fixed contact, 311,321 tops and second fixed contact 311,321, finish first section switch start.At this moment, but because second central portion 51 of second moving contacting plate 5 continues the elasticity counter-rotating, thereby but but promote the also elasticity counter-rotating downwards of first central portion 41 of the insulation film 6 and first moving contacting plate 4 of second moving contacting plate, 5 belows.Therefore, but first central portion 41 of first moving contacting plate 4 after the elasticity counter-rotating contact with above-mentioned central fixed contact 341, making wins conducting occurs between movable contact chip 4 and the above-mentioned central fixed contact 341, finishes second section switch start.At this moment, because but but second fixed terminal 32 and the 4th fixed terminal 34 are interconnected into integral body and first moving contacting plate 4 is being connected second fixed terminal 32 and is being connected first fixed terminal 31 and second fixed terminal 32 with the 3rd fixed terminal 33, second moving contacting plate 5, like this, central fixed contact 341, first fixed contact 331 and second fixed contact 311,321 are in conducting state.
When the pressing force removed the utility model push-button switch 100, but first, second central portion 41,51 of above-mentioned first, second moving contacting plate 4,5 upwards carries out the elasticity counter-rotating with the elastic force of self, returns to initial condition.At this moment, but first central portion 41 of first moving contacting plate 4 separate with above-mentioned central fixed contact 341, but the salient point 522 of second moving contacting plate, 5 wrists 52 separate with above-mentioned second fixed contact 311,321, the utility model push-button switch 100 has become off-state.
But the utility model push-button switch makes second fixed contact and unsettled thereon the contacted mode of salient point by taking second moving contacting plate because of the power of being pressed, but the elastic pressure that the wrist that can reduce by second moving contacting plate is subjected to, avoid the situation of the loose contact that occurs because of elastic fatigue, the useful life that can improve product.
Technology contents of the present utility model and technical characterstic disclose as above, yet those of ordinary skill in the art still may carry out all replacement and modifications that does not deviate from the utility model spirit based on teaching of the present utility model and announcement.Therefore, protection range of the present utility model should be not limited to the content that execution mode discloses, and comprises various do not deviate from replacement of the present utility model and modifications, is the present patent application claim and contains.
Claims (8)
1. push-button switch, comprise insulating body with resettlement section, with the integrated fixed terminal of insulating body, but but be loaded on first moving contacting plate and second moving contacting plate in the resettlement section, but and adhere to insulation film on first moving contacting plate, but but second moving contacting plate is positioned at the top of first moving contacting plate, insulating body is provided with in its corner and accommodates recess, fixed terminal is formed with at least one second fixed contact in the above-mentioned recess place of accommodating, but the corresponding above-mentioned recess of accommodating of second moving contacting plate is provided with wrist, it is characterized in that: described wrist is provided with the salient point that protrudes out downwards, the unsettled top of being located at second fixed contact of these salient points, described salient point is normality with second fixed contact and separates.
2. push-button switch as claimed in claim 1 is characterized in that: the described recess of accommodating all has been horizontally set with a support portion, and described wrist is placed on the support portion.
3. push-button switch as claimed in claim 1 is characterized in that: but the diameter of described insulation film covers but make first moving contacting plate be insulated film fully greater than the diameter of above-mentioned first moving contacting plate.
4. push-button switch as claimed in claim 3, it is characterized in that: described fixed terminal is divided into first fixed terminal, second fixed terminal, the 3rd fixed terminal and the 4th fixed terminal, wherein, second fixed terminal and the 4th fixed terminal are connected to each other and become overall structure.
5. push-button switch as claimed in claim 4, it is characterized in that: described resettlement section is made up of base portion and the above-mentioned recess of accommodating, be concaved with a concave part on the surface of base portion, offer at least one accepting groove on this concave part, the corresponding accepting groove of described the 3rd fixed terminal is formed with first fixed contact.
6. push-button switch as claimed in claim 5 is characterized in that: the middle position of described base portion also is provided with an arc convex surface, and described the 4th fixed terminal corresponding circle arc convex surface is provided with central fixed contact.
7. push-button switch as claimed in claim 6 is characterized in that: above-mentioned second fixed contact is formed by first fixed terminal and second fixed terminal.
8. push-button switch as claimed in claim 7, it is characterized in that: but the middle position of described first moving contacting plate is provided with first central portion, but the middle position of described second moving contacting plate is provided with second central portion, first central portion and second central portion place the top of above-mentioned central fixed contact, but the peripheral position of first moving contacting plate and described first fixed contact are permanently connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125760 CN200986874Y (en) | 2006-11-21 | 2006-11-21 | Push-button switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125760 CN200986874Y (en) | 2006-11-21 | 2006-11-21 | Push-button switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986874Y true CN200986874Y (en) | 2007-12-05 |
Family
ID=38916332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620125760 Expired - Fee Related CN200986874Y (en) | 2006-11-21 | 2006-11-21 | Push-button switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200986874Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740249B (en) * | 2008-11-25 | 2012-05-23 | 富士康(昆山)电脑接插件有限公司 | Button switch |
| CN104871278A (en) * | 2012-11-19 | 2015-08-26 | 波肯斯有限公司 | Dome switch and method for manufacturing same |
| TWI690964B (en) * | 2017-10-30 | 2020-04-11 | 日商阿爾卑斯阿爾派股份有限公司 | power switch button |
-
2006
- 2006-11-21 CN CN 200620125760 patent/CN200986874Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740249B (en) * | 2008-11-25 | 2012-05-23 | 富士康(昆山)电脑接插件有限公司 | Button switch |
| CN104871278A (en) * | 2012-11-19 | 2015-08-26 | 波肯斯有限公司 | Dome switch and method for manufacturing same |
| TWI690964B (en) * | 2017-10-30 | 2020-04-11 | 日商阿爾卑斯阿爾派股份有限公司 | power switch button |
| CN111316392A (en) * | 2017-10-30 | 2020-06-19 | 阿尔卑斯阿尔派株式会社 | Push switch |
| CN111316392B (en) * | 2017-10-30 | 2022-02-22 | 阿尔卑斯阿尔派株式会社 | Push switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071205 Termination date: 20091221 |