CN202721078U - Load switch - Google Patents
Load switch Download PDFInfo
- Publication number
- CN202721078U CN202721078U CN 201220307512 CN201220307512U CN202721078U CN 202721078 U CN202721078 U CN 202721078U CN 201220307512 CN201220307512 CN 201220307512 CN 201220307512 U CN201220307512 U CN 201220307512U CN 202721078 U CN202721078 U CN 202721078U
- Authority
- CN
- China
- Prior art keywords
- fixed
- contact
- load switch
- arc
- moving contact
- 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
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model discloses a load switch, which comprises a hermetically sealed shell, a stationary contact, an arc blowing device and a moving contact, wherein the stationary contact and the arc blowing device are fixed in the shell, the moving contact is arranged in the shell, and the shell is filled with a gas of sulfur hexafluoride. When the moving contact separates from the stationary contact, air flow produced by the arc blowing device between the moving contact and the stationary contact puts out an electric arc generated when the moving contact separates from the stationary contact. The load switch can put the electric arc out quickly, and has the advantage of good arc extinction effect.
Description
Technical field
The utility model relates to a kind of switch, particularly relates to a kind of on-load switch with arc-suppression function.
Background technology
Grids blocking-up or the permanent magnets of adopting carry out arc extinguishing more during commonly used on-load switch arc extinguishing.Yet, adopting grid blocking-up or permanent magnet to carry out arc extinguishing can not extinguish the on-load switch drop-out current rapidly fast and effectively, if particularly switch can not be in time in the separating brake process rapidly extinguish arcs will cause to the conductive contact of on-load switch great injury, even conductive contact burnt melt distortion or burn out.
The utility model content
Based on this, be necessary the on-load switch that provides a kind of arc quenching effect good.
A kind of on-load switch, comprise airtight housing, be fixed in the interior fixed contact of described housing, be fixed in the arc-blowing device in the described housing and be arranged at the interior fixed contact of described housing, when described moving contact separated with described fixed contact, described arc-blowing device blew out sulfur hexafluoride gas and makes the arc extinction that produces when the generation air-flow separates described moving contact between described moving contact and the described fixed contact with described fixed contact.
Among embodiment, be filled with sulfur hexafluoride gas in the described housing therein.
Therein among embodiment, described on-load switch also comprises rotation axis, be fixed in fixed axis on the described housing, be fixed in linking arm on the described rotation axis and rotation is fixed in swing arm on the described linking arm, the first end rotation of described movable contact is fixed on the described fixed axis, other end rotation is fixed in the described swing arm, drive described linking arm rotation during described rotation axis rotation, described linking arm drives described swing arm and moves, and described swing arm drives described moving contact and rotates around described fixed axis.
Among embodiment, described arc-blowing device is provided with insufflation switch therein, and described swing arm is provided with the push pedal that the described insufflation switch of control is opened.
Therein among embodiment, be connected by rotating shaft between described swing arm and the described linking arm.
Therein among embodiment, be connected by rotating shaft between described moving contact and the described swing arm.
Among embodiment, described arc-blowing device is provided with inflatable mouth therein, and described inflatable mouth is aimed at the junction of described moving contact and described fixed contact.
Above-mentioned on-load switch is when separating brake, be that fixed contact is when separating with moving contact, arc-blowing device can blow out sulfur hexafluoride gas, forms the air-flow of speed and the electric arc between fixed contact and the moving contact is blown out between fixed contact and moving contact, reduces simultaneously the temperature of fixed contact and moving contact.
Description of drawings
Fig. 1 is the on-load switch schematic diagram of an embodiment.
Embodiment
Please refer to Fig. 1, an execution mode provides a kind of on-load switch 100, this on-load switch 100 comprises airtight housing 110, be fixed in fixed contact 120 in the housing 110, be fixed in the arc-blowing device 140 in the housing 110 and be arranged at fixed contact 120 in the housing 110, when moving contact 130 separated with fixed contact 120, arc-blowing device 140 blew out sulfur hexafluoride gas and makes the arc extinction that produces when the generation air-flow separates moving contact 130 between moving contact 130 and the fixed contact 120 with fixed contact 120.
Be filled with sulfur hexafluoride gas in the housing 110 of this on-load switch 100, when not having sulfur hexafluoride gas in the arc-blowing device 140, can directly obtain from housing 110, sulfur hexafluoride gas circulates in arc-blowing device 140 and housing like this, need not the external world and be filled with again gas, guarantee that on-load switch 100 can use for a long time.
This on-load switch 100 also comprises rotation axis 150, be fixed in fixed axis 180 on the housing 110, be fixed in linking arm 160 on the rotation axis 150 and rotation is fixed in swing arm 170 on the linking arm 160, the rotation of moving contact 130 1 ends is fixed on the fixed axis 180, other end rotation is fixed in the swing arm 170, the other end of moving contact 130 also can be the middle part of moving contact 130 herein, it is the medium position that moving contact 130 is fixed in swing arm 170, moving contact 130 can rotate around fixed axis 180, namely between them for being rotationally connected.
Be connected by rotating shaft 190 between the swing arm 170 of this on-load switch 100 and the linking arm 160, also be connected by rotating shaft 190 between moving contact 130 and the swing arm 170.Like this, form between swing arm 170 and the linking arm 160 and be rotationally connected, also form between moving contact 130 and the swing arm 170 and be rotationally connected.
The arc-blowing device 140 of this on-load switch 100 is provided with insufflation switch 142, swing arm 170 is provided with the push pedal 171 that control insufflation switch 142 is opened, when moving contact 130 separates with fixed contact 120, swing arm 170 drives push pedal 171 and promotes insufflation switch 142, insufflation switch 142 will start arc-blowing device 140, makes arc-blowing device 140 to blowing between moving contact 130 and the fixed contact 120.
The arc-blowing device 140 of this on-load switch 100 is provided with inflatable mouth 141, and this inflatable mouth 141 is aimed at the junction of moving contact 130 and fixed contact 120.When arc-blowing device 140 starts when beginning to blow, inflatable mouth 141 can make the junction of moving contact 130 and fixed contact 120 produce the electric arc blowing-out of air-flow generation so that moving contact 130 separate with fixed contact 120.
State when this on-load switch 100 closes a floodgate as shown in Figure 1, wherein moving contact 130 contacts with fixed contact 120, push pedal 171 is not against insufflation switch 141.When on-load switch 100 separating brake, rotation axis 150 will rotate, thereby drives linking arm 160 rotations that are fixed on rotation axis 150, and the rotation of linking arm 160 will drive swing arm 170 motions, and swing arm 170 further drives moving contact 130 and rotates around fixed axis 180.Moving contact 130 separates with fixed contact 120 like this, realizes separating brake.Also will produce electric arc because of separating brake between moving contact 130 and the fixed contact 120.When moving contact 130 and fixed contact 120 separated, the insufflation switch 141 that the push pedal 171 in the swing arm 170 will promote on the arc-blowing device 140 moved.Arc-blowing device 140 starts like this, the sulfur hexafluoride gas that arc-blowing device 140 is put aside will blow out from the inflatable mouth 141 of arc-blowing device 140, thereby between moving contact 130 and fixed contact 120, produce the sulphur hexafluoride air-flow, this air-flow can be blown out between moving contact 130 and the fixed contact 120 because separating brake produces electric arc, simultaneously moving contact 130 and fixed contact 120 is lowered the temperature.
When on-load switch 100 closes a floodgate, rotation axis 150 will be to the direction rotation opposite with the separating brake direction of rotation, thereby drive linking arm 160 rotations that are fixed on rotation axis 150, the rotation of linking arm 160 will drive swing arm 170 motions, and swing arm 170 further drives moving contact 130 and rotates around fixed axis 180.Moving contact 130 contacts with fixed contact 120 like this, realizes separating brake.Moving contact 130 and 120 contacted whiles of fixed contact, the push pedal 171 in the swing arm 170 will be left the insufflation switch 141 on the arc-blowing device 140.Like this arc-blowing device 140 will put aside sulfur hexafluoride gas for the next time arc extinguishing prepare.
Be full of sulfur hexafluoride gas in the closed shell of this on-load switch 100, this on-load switch 100 utilizes arc-blowing device to blow out sulfur hexafluoride gas and realizes arc extinguishing, can realize rapid arc extinguishing, avoid electric arc that the conductive contact of on-load switch is caused larger injury, have the good advantage of arc quenching effect.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (7)
1. on-load switch, it is characterized in that, comprise airtight housing, be fixed in the interior fixed contact of described housing, be fixed in the arc-blowing device in the described housing and be arranged at the interior fixed contact of described housing, when described moving contact separated with described fixed contact, described arc-blowing device blew out sulfur hexafluoride gas and makes the arc extinction that produces when the generation air-flow separates described moving contact between described moving contact and the described fixed contact with described fixed contact.
2. on-load switch according to claim 1 is characterized in that, is filled with sulfur hexafluoride gas in the described housing.
3. on-load switch according to claim 1, it is characterized in that, described on-load switch also comprises rotation axis, be fixed in fixed axis on the described housing, be fixed in linking arm on the described rotation axis and rotation is fixed in swing arm on the described linking arm, the first end rotation of described movable contact is fixed on the described fixed axis, other end rotation is fixed in the described swing arm, drive described linking arm rotation during described rotation axis rotation, described linking arm drives described swing arm and moves, and described swing arm drives described moving contact and rotates around described fixed axis.
4. on-load switch according to claim 3 is characterized in that, described arc-blowing device is provided with insufflation switch, and described swing arm is provided with the push pedal that the described insufflation switch of control is opened.
5. the described on-load switch of arbitrary claim in 3 according to claim 1 is characterized in that, is connected by rotating shaft between described swing arm and the described linking arm.
6. the described on-load switch of arbitrary claim in 3 according to claim 1 is characterized in that, is connected by rotating shaft between described moving contact and the described swing arm.
7. the described on-load switch of arbitrary claim in 3 according to claim 1 is characterized in that described arc-blowing device is provided with inflatable mouth, and described inflatable mouth is aimed at the junction of described moving contact and described fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307512 CN202721078U (en) | 2012-06-28 | 2012-06-28 | Load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307512 CN202721078U (en) | 2012-06-28 | 2012-06-28 | Load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721078U true CN202721078U (en) | 2013-02-06 |
Family
ID=47622890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220307512 Expired - Fee Related CN202721078U (en) | 2012-06-28 | 2012-06-28 | Load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721078U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448589A (en) * | 2014-08-21 | 2016-03-30 | 厦门华电开关有限公司 | Rotary air-compressing load switch and nozzle assembly thereof |
| CN108321005A (en) * | 2018-02-26 | 2018-07-24 | 广东炜创电气有限公司 | The pneumatic arc-blowing device of switch gearing formula |
-
2012
- 2012-06-28 CN CN 201220307512 patent/CN202721078U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448589A (en) * | 2014-08-21 | 2016-03-30 | 厦门华电开关有限公司 | Rotary air-compressing load switch and nozzle assembly thereof |
| CN105448589B (en) * | 2014-08-21 | 2017-12-19 | 厦门华电开关有限公司 | Rotate calm the anger on-load switch and its spout assembly |
| CN108321005A (en) * | 2018-02-26 | 2018-07-24 | 广东炜创电气有限公司 | The pneumatic arc-blowing device of switch gearing formula |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103021750B (en) | With the low-voltage circuit breaker of pneumatic trip gear | |
| CN202721078U (en) | Load switch | |
| CN102376505B (en) | Contactor protecting sheet and molded case circuit breaker contactor with high breaking capacity | |
| CN202076163U (en) | Miniature circuit breaker | |
| CN203839311U (en) | Circuit breaker operating mechanism with energy storage sliding block | |
| CN203631412U (en) | Inflation switch having arc quenching device | |
| CN202549757U (en) | Circuit breaker | |
| CN207587673U (en) | Moving contact component and device for switching may be reversed | |
| CN201812769U (en) | Breaker with contact isolating device | |
| CN203882932U (en) | Low-voltage breaker | |
| CN102915894B (en) | Arc-blowing device of direct-current circuit breaker | |
| CN104616928B (en) | A kind of on-load switch | |
| CN205657036U (en) | Miniature circuit breaker's arc blow -out mechanism | |
| CN205452218U (en) | Circuit breaker explosion chamber seal structure | |
| CN207233620U (en) | One kind switch resistance arcing contact device | |
| CN103489704A (en) | Operating device for vacuum circuit breaker | |
| CN206947283U (en) | A kind of movable contact system of frame circuit breaker | |
| CN204464156U (en) | A kind of on-load switch | |
| CN207149504U (en) | A kind of Minitype electrical leakage breaker N poles arc quenching system | |
| CN201655717U (en) | Static contact device of plastic shell breaker | |
| CN205070287U (en) | Solid insulation switch cabinet | |
| CN211479929U (en) | Arc extinguishing switch | |
| CN107799339A (en) | Arc extinguishing unit and electric switch for electric switch | |
| CN203983152U (en) | A kind of on-load switch | |
| CN204497143U (en) | A kind of high-pressure vacuum breaker |
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: 20130206 Termination date: 20190628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |