CN201307534Y - Magnetic keyswitch - Google Patents
Magnetic keyswitch Download PDFInfo
- Publication number
- CN201307534Y CN201307534Y CNU2008201773774U CN200820177377U CN201307534Y CN 201307534 Y CN201307534 Y CN 201307534Y CN U2008201773774 U CNU2008201773774 U CN U2008201773774U CN 200820177377 U CN200820177377 U CN 200820177377U CN 201307534 Y CN201307534 Y CN 201307534Y
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- CN
- China
- Prior art keywords
- cavity
- spring
- housing
- magnetic force
- key switch
- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a magnetic keyswitch, comprising a housing with a cavity, wherein the upper end surface of the housing is communicated with the opening of the cavity, the lower end of a T-shaped key penetrates through the opening and is extended into the cavity of the housing, while the key comprises an insulative pressing part and a conductive post, the cavity of the housing is provided with a conductive base arranged under the conductive post, supports are symmetrically arranged in the cavity, the upper end of the spring is connected with the lower end surface of the insulative pressing part of the key, the lower end of the spring is connected with the support, the upper end surface of the housing is provided with a flexible device which is next to the insulative pressing part of the key, a arc control device is arranged on the conductive base. The magnetic keyswitch of the utility model has the advantage of good stability, convenient use, low cost and the strong application.
Description
Technical field
The utility model relates to a kind of switch, particularly a kind of magnetic force key switch.
Background technology
Present employed magnetic force key switch is nothing more than the switch, conductive rubber switch and the elargol thin film switch that are spring-piece type.Wherein elastic sheet switch is to be provided with the reed that is the semicircle sphere, and when the user pushes this reed, this reed will contact corresponding circuit simultaneously, make circuit turn-on.This switch is not that easily simultaneously, the conducting position contact area of switch is little when using, and occurs the situation of loose contact after long-term the use easily.And the wearing and tearing of reed, distortion are until forfeiture elasticity; In addition, switch usually produces with electric arc when switching, and has not only reduced the magnitude of current, and has reduced the useful life of switch.
Summary of the invention
The purpose of this utility model provides a kind of magnetic force key switch, and this magnetic force key switch good stability is easy to use, and can reduce the generation of electric arc, the useful life of guaranteeing switch.
The technical scheme that realizes the utility model purpose is as follows:
The magnetic force key switch, comprise housing with cavity, the housing upper surface is provided with and is communicated with described cavity opening, the lower end of one "T"-shaped button is passed in the cavity that opening extend into housing, this button comprises insulation press section and conducting rod, be provided with the conductive seat that is positioned at described conducting rod below in the cavity of described housing, be symmetrically arranged with bearing in the described cavity, the upper end of one spring is connected with the lower surface, insulation press section of button, the spring lower end is connected with bearing, the upper surface of described housing is provided with retractor device, the insulation press section of this retractor device and button near, described conductive seat is provided with the arc blow-out arc-control device.
The upper surface of described bearing is provided with blind hole, and described spring is fixed in this blind hole.
Described conductive seat upper surface is provided with cavity, and this cavity is provided with a conducting strip, and this conducting strip lower surface is connected with a spring.
Arc blow-out arc-control device on the described conductive seat is a blowout coil.
The positioning seat that described retractor device comprises guide vane end stop, compresses spring and have cavity, described guide vane end stop one end is connected with the compression spring, and the compression spring other end is fixed in the cavity of positioning seat.
The end that described guide vane end stop connects the compression spring is snug fit in the cavity of positioning seat.
Adopted such scheme, be symmetrically arranged with bearing in the described cavity, the upper end of one spring is connected with the lower surface, insulation press section of button, the spring lower end is connected with bearing, when exerted pressure in the insulation press section, the insulation press section transfers the pressure to spring, makes length of spring compressed and accumulates restoring force, and conducting rod extend in the groove of conductive seat and closely contacts with conducting strip.The upper surface of housing is provided with retractor device, the insulation press section of this retractor device and button near.The insulation press section is pressed behind bottom offset, and it is spacing to the insulation press section that the guide vane end stop of retractor device is made bottom offset at the tension force of compression spring, can prevent that like this button from automatically reseting, and guarantees the reliability and the stability of switching on.When the needs open circuit, promote the elastic force that guide vane end stop overcomes the compression spring, initial position is got back in the insulation press section under the return action power of spring, and with guide vane end stop near.Described conductive seat is provided with the arc blow-out arc-control device, when conducting rod contacts with conducting strip, by the arc blow-out arc-control device electric field strength in the electric arc is reduced, the compound of free electron and diffusion are strengthened, thereby quicken extinguishing of electric arc, reduce the infringement of electric arc, prolong the useful life of switch conducting rod and conducting strip.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the structural representation of embodiment of the present utility model.
In the accompanying drawing, 1 is housing, and 2 are the insulation press section, and 3 is conducting rod, and 4 is conductive seat, and 5 is conducting strip, and 6 is spring, and 7 is bearing, and 8 is spring, and 9 is guide vane end stop, and 10 are the compression spring, and 11 is positioning seat, and 12 is the arc blow-out arc-control device.
Embodiment
With reference to Fig. 1, be magnetic force key switch of the present utility model, comprise the housing 1 with cavity, the housing upper surface is provided with and is communicated with described cavity opening, the lower end of one "T"-shaped button is passed in the cavity that opening extend into housing, and this button comprises insulation press section 2 and conducting rod 3.Be provided with the conductive seat 4 that is positioned at described conducting rod below in the cavity of described housing, described conductive seat upper surface is provided with cavity, and this cavity is provided with a conducting strip 5, and this conducting strip lower surface is connected with a spring 6.The upper end that is symmetrically arranged with bearing 7, one springs in the described cavity is connected with the lower surface, insulation press section of button, and the spring lower end is connected with bearing.The upper surface of described bearing 7 is provided with blind hole, and described spring 8 is fixed in this blind hole.The upper surface of described housing 1 is provided with retractor device, the insulation press section of this retractor device and button near.Described retractor device comprises guide vane end stop 9, compression spring 10 and the positioning seat 11 with cavity, and described guide vane end stop 9 one ends are connected with compression spring 10, and compression spring 10 other ends are fixed in the cavity of positioning seat 11.The end that described guide vane end stop 9 connects compression spring 10 is snug fit in the cavity of positioning seat 11.Described conductive seat 4 is provided with arc blow-out arc-control device 12, and the arc blow-out arc-control device is a blowout coil.
When need using switch of the present utility model, exerted pressure in insulation press section 2, conducting rod 3 moves downward in the groove that inserts conductive seat 4, and conducting rod 3 is closely contacted with conducting strip 5.Insulation press section 2 makes spring 8 compression and accumulates the answer energy in the process that presses down, and simultaneously, the tension force of compression spring 10 promotes the upper surface that guide vane end stop moves to insulation press section 2, and the axial location of insulation press section 2 is limited.When the needs open circuit, promote the elastic force that guide vane end stop overcomes the compression spring, initial position is got back in insulation press section 2 under the return action power of spring 8, and with guide vane end stop 9 near.
Claims (6)
1. magnetic force key switch, comprise housing with cavity, the housing upper surface is provided with and is communicated with described cavity opening, the lower end of one "T"-shaped button is passed in the cavity that opening extend into housing, this button comprises insulation press section and conducting rod, be provided with the conductive seat that is positioned at described conducting rod below in the cavity of described housing, it is characterized in that: be symmetrically arranged with bearing in the described cavity, the upper end of one spring is connected with the lower surface, insulation press section of button, the spring lower end is connected with bearing, the upper surface of described housing is provided with retractor device, the insulation press section of this retractor device and button near, described conductive seat is provided with the arc blow-out arc-control device.
2. magnetic force key switch according to claim 1 is characterized in that: the upper surface of described bearing is provided with blind hole, and described spring is fixed in this blind hole.
3. magnetic force key switch according to claim 1 is characterized in that: described conductive seat upper surface is provided with cavity, and this cavity is provided with a conducting strip, and the conducting strip lower surface is connected with a spring.
4. according to claim 1 or 3 any described magnetic force key switches, it is characterized in that: the arc blow-out arc-control device on the described conductive seat is a blowout coil.
5. magnetic force key switch according to claim 1, it is characterized in that: the positioning seat that described retractor device comprises guide vane end stop, compresses spring and have cavity, described guide vane end stop one end is connected with the compression spring, and the compression spring other end is fixed in the cavity of positioning seat.
6. magnetic force key switch according to claim 1 is characterized in that: the end that described guide vane end stop connects the compression spring is snug fit in the cavity of positioning seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201773774U CN201307534Y (en) | 2008-11-14 | 2008-11-14 | Magnetic keyswitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201773774U CN201307534Y (en) | 2008-11-14 | 2008-11-14 | Magnetic keyswitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307534Y true CN201307534Y (en) | 2009-09-09 |
Family
ID=41100001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201773774U Expired - Fee Related CN201307534Y (en) | 2008-11-14 | 2008-11-14 | Magnetic keyswitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307534Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332362A (en) * | 2010-07-13 | 2012-01-25 | 阿尔卑斯电气株式会社 | Switch device and switch unit using the same |
-
2008
- 2008-11-14 CN CNU2008201773774U patent/CN201307534Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332362A (en) * | 2010-07-13 | 2012-01-25 | 阿尔卑斯电气株式会社 | Switch device and switch unit using the same |
| CN102332362B (en) * | 2010-07-13 | 2014-05-14 | 阿尔卑斯电气株式会社 | Switch device and switch unit using same |
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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: 20090909 Termination date: 20091214 |