CN202473624U - Switch device contact closing impact force inhibiting apparatus - Google Patents
Switch device contact closing impact force inhibiting apparatus Download PDFInfo
- Publication number
- CN202473624U CN202473624U CN2011205699048U CN201120569904U CN202473624U CN 202473624 U CN202473624 U CN 202473624U CN 2011205699048 U CN2011205699048 U CN 2011205699048U CN 201120569904 U CN201120569904 U CN 201120569904U CN 202473624 U CN202473624 U CN 202473624U
- Authority
- CN
- China
- Prior art keywords
- switch device
- air bag
- contact
- damping
- contacts
- 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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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a switch device contact closing impact force inhibiting apparatus, comprising a damping air bag, and an impact handle and an air injection pipe both arranged at the outlet of the damping air bag through a rotation shaft, wherein when the moving contact of a switch device impacts the impact handle at the end of motion to drive the damping air bag to contract, thereby playing an effect of absorbing impact energy and reducing the vibration of the contact; and simultaneously the air inside the air bag is injected through the air injection pipe, the injected air is blown to the closing point of moving and static contacts, thereby cooling and blowing away the arc appearing when the moving and static contacts are closed, accelerating arc quenching, and reducing the electrical wear of the contacts. Above two processes commonly act, thereby reducing the damage of the contacts of the switch device in the process of closing motion, increasing the service life of the contact, and simultaneously increasing the working reliability and the service life of the switch device.
Description
Technical field
The utility model relates to a kind of contact shock absorbing device, is specifically related to a kind of device for switching contact closure impulsive force restraining device.
Background technology
At present the contact of device for switching mainly suppresses the contact vibration through the contact pressure spring, but because the main design considerations of contact pressure spring is the moving contact excess of stroke, rather than to the contact vibration, so but it shakes limited in one's abilityly, can't effectively reduce the contact damage.
The utility model content
The purpose of the utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of and can effectively suppress the contact vibration, can quicken the device for switching contact closure impulsive force restraining device of arc extinction simultaneously.
For achieving the above object, the technical scheme that the utility model adopts is: the impact handle and the air jet pipe that comprise the damping air bag and be arranged on damping air bag exit through rotating shaft.
Damping adjustment valve also is installed on the described damping air bag.
The utility model absorbs the moving contact impact energy through the damping air bag, simultaneously impact energy is converted into the motion of air-flow high velocity jet, has quickened extinguishing of contact electric arc; These two kinds of process actings in conjunction have effectively weakened the mechanical wear and the electrical wear of device for switching contact, have prolonged the contact life-span, have improved the functional reliability of device for switching.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the scheme of installation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
Referring to Fig. 1, impact handle 1 and air jet pipe 2 that the utility model comprises damping air bag 3 and is arranged on damping air bag 3 exits through rotating shaft also are equipped with damping adjustment valve 4 on damping air bag 3.
Referring to Fig. 2, after impact handle 1 receives the collision of moving contact component 5, drive damping air bag 3 and shrink, thereby absorb the moving contact impact energy; Air in the air bag of damping simultaneously 3 is compressed; From air jet pipe 2 ejections, blow to the electric arc between the dynamic/static contact, quickened extinguishing of electric arc through cooling and elongation effect; Damping adjustment valve 4 is used for regulating damping capaicty, makes that the impact energy of moving contact is consumed to greatest extent.The utility model is applicable to all device for switching.
The air jet pipe 2 of the utility model can design its length and shape according to the installation site of device for switching volume inside and the utility model; Impact handle 1 and also can design its shape and size, shrink as long as can drive the damping air bag according to the device for switching volume inside.
Claims (2)
1. device for switching contact closure impulsive force restraining device is characterized in that: the impact handle (1) and the air jet pipe (2) that comprise damping air bag (3) and be arranged on damping air bag (3) exit through rotating shaft.
2. device for switching contact closure impulsive force restraining device according to claim 1 is characterized in that: damping adjustment valve (4) also is installed on the described damping air bag (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205699048U CN202473624U (en) | 2011-12-22 | 2011-12-22 | Switch device contact closing impact force inhibiting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205699048U CN202473624U (en) | 2011-12-22 | 2011-12-22 | Switch device contact closing impact force inhibiting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473624U true CN202473624U (en) | 2012-10-03 |
Family
ID=46921767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205699048U Expired - Fee Related CN202473624U (en) | 2011-12-22 | 2011-12-22 | Switch device contact closing impact force inhibiting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473624U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340409A (en) * | 2016-10-13 | 2017-01-18 | 余伟蓉 | No-jittering switch contact structure |
| CN111584258A (en) * | 2019-02-19 | 2020-08-25 | 北海市深蓝科技发展有限责任公司 | Vibration reduction contact structure with damping block for inhibiting contact attraction impact force |
-
2011
- 2011-12-22 CN CN2011205699048U patent/CN202473624U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340409A (en) * | 2016-10-13 | 2017-01-18 | 余伟蓉 | No-jittering switch contact structure |
| CN106340409B (en) * | 2016-10-13 | 2019-05-14 | 贵州华阳宏达电器有限公司 | A kind of non-jitter switch contact structure |
| CN111584258A (en) * | 2019-02-19 | 2020-08-25 | 北海市深蓝科技发展有限责任公司 | Vibration reduction contact structure with damping block for inhibiting contact attraction impact force |
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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: 20121003 Termination date: 20171222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |