CN204270934U - A kind of low-voltage circuit breaker with arc extinguishing slide block - Google Patents
A kind of low-voltage circuit breaker with arc extinguishing slide block Download PDFInfo
- Publication number
- CN204270934U CN204270934U CN201420753925.9U CN201420753925U CN204270934U CN 204270934 U CN204270934 U CN 204270934U CN 201420753925 U CN201420753925 U CN 201420753925U CN 204270934 U CN204270934 U CN 204270934U
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- CN
- China
- Prior art keywords
- moving contact
- contact
- slide block
- fixed contact
- dwang
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- 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
Have a low-voltage circuit breaker for arc extinguishing slide block, moving contact is rotatably connected in the rotating shaft of enclosure interior setting, and one end of moving contact is provided with the contact coordinated with fixed contact, and the other end is driven by driving mechanism; Driving mechanism side is provided with a dwang be hinged on housing, and one end of this dwang is provided with chute, and the other end is driven by driving mechanism, and an insulation slide block is provided with the slide bar that is positioned at chute; Driving mechanism stir moving contact make it near fixed contact time, insulation slide block can be driven to make it away from fixed contact by dwang, and when stirring moving contact and making it away from fixed contact, dwang can be stirred rotate around its pin joint, thus drive insulation slide block make it near fixed contact and block between moving contact and fixed contact, thus elongating arc, make it cool and extinguish fast.The end face of insulation slide block is arranged the slit that the direction along line between fixed contact and moving contact extends, the width of slit is less than the diameter producing electric arc between fixed contact and moving contact.
Description
Technical field
The utility model relates to a kind of circuit breaker, specifically a kind of low-voltage circuit breaker with arc extinguishing slide block.
Background technology
Circuit breaker is electric elements conventional in electric equipment, supply line.In the process of circuit breaker break-make, because electric current punctures air conduction, electric arc can be produced between dynamic and static contact.For reducing the space of electric arc to the scaling loss of contact and the expansion of restriction electric arc, usually need the measure taking to strengthen arc extinguishing ability, for this reason and the device adopted is called arc-control device.And existing arc-control device or complex structure, high cost, or arc quenching effect is undesirable, cannot satisfy the demands.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of can the low-voltage circuit breaker with arc extinguishing slide block of fast arc extinction.
The utility model for solving the problems of the technologies described above adopted technical scheme is: a kind of low-voltage circuit breaker with arc extinguishing slide block, comprise the housing of circuit breaker and the fixed contact be arranged in housing and moving contact, described moving contact is rotatably connected in a rotating shaft of enclosure interior setting, one end of moving contact is provided with the contact coordinated with fixed contact, the other end is driven by a driving mechanism be connected with shift bar, and the part of described moving contact between its contact with rotating shaft is connected with the housing at driving mechanism place by an extension spring; A dwang be hinged on housing is provided with in the side of driving mechanism, one end of this dwang is provided with the chute extended along its length, the other end is driven by driving mechanism, an insulation skid between fixed contact and driving mechanism is arranged in the gathering sill arranged in housing, and insulation slide block is provided with the slide bar that is positioned at the chute of dwang; Driving mechanism stir moving contact make it near fixed contact time, insulation slide block can be driven to make it away from fixed contact by stirring dwang, and driving mechanism stir moving contact make it away from fixed contact time, dwang can be stirred rotate around its pin joint, thus drive insulation slide block make it near fixed contact and block between moving contact and fixed contact; The end face of described insulation slide block is arranged the slit that the direction along line between fixed contact and moving contact extends, the width of slit is less than the diameter producing electric arc between fixed contact and moving contact.
Described driving mechanism is a rotating part being fixed in housing, and rotating part is provided with the outstanding position for stirring moving contact and dwang.
Described rotating part is a driving lever protruding from its side for stirring the position of moving contact, and this driving lever is positioned at the bar-shaped trough that moving contact end is arranged.
Described rotating part is a shifting block protruding from its periphery for stirring the position of dwang, and the end of described dwang is positioned on the path that shifting block moves with rotating part.
The beneficial effects of the utility model are: described insulation slide block can be synchronized with the movement with moving contact, removes, and move to when moving contact is separated with fixed contact between the two when moving contact and fixed contact close, thus elongating arc, make it cool and extinguish fast.The slit that insulation slide block end face is arranged then can force the electric arc walking around its end face to enter slit, thus accelerates cooling and the extinguishing of electric arc.
Accompanying drawing explanation
Fig. 1 is the structural representation of moving contact when being separated with fixed contact.
Fig. 2 is moving contact and fixed contact structural representation when closing.
Fig. 3 is the end face structure schematic diagram of insulation slide block.
Mark in figure: 1, housing, 2, fixed contact, 3, moving contact, 4, rotating shaft, 5, shift bar, 6, driving mechanism, 7, driving lever, 8, extension spring, 9, shifting block, 10, dwang, 11, insulation slide block, 12, gathering sill, 13, slide bar, 14, chute, 15, slit.
Embodiment
Structure of the present utility model composition and connected mode is illustrated below in conjunction with accompanying drawing.
A kind of slip arc extinguishing low-voltage circuit breaker, comprise the housing 1 of circuit breaker and the fixed contact 2 be arranged in housing and moving contact 3, described moving contact is rotatably connected in a rotating shaft 4 of enclosure interior setting, one end of moving contact is provided with the contact coordinated with fixed contact, and the other end is driven by the driving mechanism 6 that is connected with shift bar 5.Stirring moving contact 3 by driving mechanism makes it 4 rotate around the shaft, thus the contact controlling moving contact contacts with fixed contact or is separated.The part of described moving contact 3 between its contact with rotating shaft is connected with the housing at driving mechanism place by an extension spring 8.In the processes of moving contact 34 rotations around the shaft, when rotation is on same straight line to extension spring 8 two ends and rotating shaft, extension spring 8 is in maximum tension state, therefore, under the effect of extension spring, moving contact 3 can be crossed rapidly this intermediateness and completes with the closed of fixed contact or be separated.In order to realize arc extinguishing, the application arranges the insulation slide block 11 slided in a gathering sill that can arrange in housing 12, a dwang 10 be hinged on housing is set in the side of driving mechanism, one end of dwang is provided with the chute 14 extended along its length, and the other end is driven by driving mechanism.Insulation slide block is provided with the slide bar 13 that is positioned at the chute 14 of dwang, when dwang rotates, insulation slide block 11 can be promoted by slide bar 13 and slide in gathering sill 12.
Described driving mechanism synchronously can drive moving contact 3 and dwang 10, make it while fixed contact at driving moving contact, dwang 10 can be stirred rotate around its pin joint, thus drive insulation slide block 11 to make it away from fixed contact, and while driving moving contact makes it away from fixed contact, dwang can be stirred rotate around its pin joint, thus drive insulation slide block make it near fixed contact and block between moving contact and fixed contact.
The specific constructive form of described driving mechanism can adopt a rotating part, and this rotating part controls around a fixing central rotation by shift bar 5, while rotation, stir moving contact 3 and dwang 10 by position outwardly.Such as, the driving lever 7 that protrudes from rotating part side is arranged at the position being used for stirring moving contact 3, a bar-shaped trough is set in the end of moving contact, and make this driving lever 7 be positioned at bar-shaped trough.When rotating part rotates, driving lever 7 can promote moving contact 3, make it 4 rotate around the shaft, thus the contact controlling moving contact contacts with fixed contact or is separated.Extension spring 8 can be connected on the housing at rotating part pivot position.Drive the position of dwang 10 then can be arranged to the shifting block 9 that protrudes from its periphery, and the end of dwang is positioned on the path that shifting block moves with rotating part.When shifting block 9 rotates with rotating part, dwang can be touched and make it rotate around pin joint.
Further, the slit that the direction along line between fixed contact and moving contact extends can also be set on the end face of insulation slide block, and the width of slit is less than the diameter producing electric arc between fixed contact and moving contact.When insulate slide block movement between fixed contact and moving contact time, force the electric arc walking around its end face to enter slit, thus accelerate the cooling of electric arc and extinguishing.
Claims (4)
1. one kind has the low-voltage circuit breaker of arc extinguishing slide block, comprise the housing (1) of circuit breaker and the fixed contact (2) be arranged in housing and moving contact (3), described moving contact is rotatably connected on a rotating shaft (4) of enclosure interior setting, one end of moving contact is provided with the contact coordinated with fixed contact, the other end is driven by the driving mechanism (6) that is connected with shift bar (5), and the part of described moving contact (3) between its contact with rotating shaft is connected with the housing at driving mechanism place by an extension spring (8); It is characterized in that: be provided with a dwang (10) be hinged on housing in the side of driving mechanism, one end of this dwang is provided with the chute (14) extended along its length, the other end is driven by driving mechanism, an insulation slide block (11) between fixed contact and driving mechanism is slidably arranged in the gathering sill (12) arranged in housing, and insulation slide block is provided with the slide bar (13) that is positioned at the chute (14) of dwang; Driving mechanism (6) stir moving contact make it near fixed contact time, insulation slide block (11) can be driven to make it away from fixed contact by stirring dwang (10), and driving mechanism (6) stir moving contact make it away from fixed contact time, dwang can be stirred rotate around its pin joint, thus drive insulation slide block make it near fixed contact and block between moving contact and fixed contact; The end face of described insulation slide block is arranged the slit that the direction along line between fixed contact and moving contact extends, the width of slit is less than the diameter producing electric arc between fixed contact and moving contact.
2. a kind of low-voltage circuit breaker with arc extinguishing slide block as claimed in claim 1, it is characterized in that: described driving mechanism (6) is a rotating part being fixed in housing, rotating part is provided with the outstanding position for stirring moving contact (3) and dwang (10).
3. a kind of low-voltage circuit breaker with arc extinguishing slide block as claimed in claim 2, it is characterized in that: the position that described rotating part is used for stirring moving contact (3) is a driving lever (7) protruding from its side, this driving lever (7) is positioned at the bar-shaped trough that moving contact (3) end is arranged.
4. a kind of low-voltage circuit breaker with arc extinguishing slide block as claimed in claim 2, it is characterized in that: the position that described rotating part is used for stirring dwang (10) is a shifting block (9) protruding from its periphery, the end of described dwang is positioned on the path that shifting block moves with rotating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753925.9U CN204270934U (en) | 2014-12-05 | 2014-12-05 | A kind of low-voltage circuit breaker with arc extinguishing slide block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753925.9U CN204270934U (en) | 2014-12-05 | 2014-12-05 | A kind of low-voltage circuit breaker with arc extinguishing slide block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204270934U true CN204270934U (en) | 2015-04-15 |
Family
ID=52805787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420753925.9U Expired - Fee Related CN204270934U (en) | 2014-12-05 | 2014-12-05 | A kind of low-voltage circuit breaker with arc extinguishing slide block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204270934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342178A (en) * | 2017-08-23 | 2017-11-10 | 河北宝凯电气股份有限公司 | A kind of high-breaking miniature breaker |
| CN113125821A (en) * | 2021-04-07 | 2021-07-16 | 国网河北省电力有限公司邯郸供电分公司 | Junction box for metering secondary circuit safety arc extinction |
-
2014
- 2014-12-05 CN CN201420753925.9U patent/CN204270934U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342178A (en) * | 2017-08-23 | 2017-11-10 | 河北宝凯电气股份有限公司 | A kind of high-breaking miniature breaker |
| CN113125821A (en) * | 2021-04-07 | 2021-07-16 | 国网河北省电力有限公司邯郸供电分公司 | Junction box for metering secondary circuit safety arc extinction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 467100, Henan City, Pingdingshan province Jiaxian Chengdong Industrial Agglomeration Area Patentee after: Tiansheng electric Limited by Share Ltd Address before: 467100, Henan City, Pingdingshan province Jiaxian East Industrial Agglomeration Patentee before: PINGDINGSHAN TIANSHENG ELECTRIC CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20181205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |