CN102693880B - Circuit breaker bimetal element initial position regulator - Google Patents
Circuit breaker bimetal element initial position regulator Download PDFInfo
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- CN102693880B CN102693880B CN201210167647.4A CN201210167647A CN102693880B CN 102693880 B CN102693880 B CN 102693880B CN 201210167647 A CN201210167647 A CN 201210167647A CN 102693880 B CN102693880 B CN 102693880B
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- bimetallic element
- circuit breaker
- initial position
- position regulator
- bimetallic
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Abstract
The invention discloses a kind of circuit breaker bimetal element initial position regulator, comprise and being located in case for circuit breaker and be linked in sequence fixing terminal block, connecting plate and bimetallic element; It is characterized in that the side of described bimetallic element is provided with screw adjustment seat, described screw adjustment seat is provided with screwed hole, the adjustment screw pointing to bimetallic element is provided with in screwed hole, and the opposite side of bimetallic element is provided with elastic component, this elastic component applies the elastic force be against with bimetallic element in adjustment screw.The present invention can regulate the initial position of bimetallic element, and guarantee that bimetallic element accurate and effective resets, thus substantially increase the applicability of existing circuit breaker bimetal element, further ensure that accuracy and the consistency of bimetallic element operate time, enhance circuit breaker tripping stability.
Description
Technical field
the present invention relates to a kind of circuit breaker bimetal element initial position regulator.
Background technology
usually all bimetallic element is provided with in existing circuit breaker; to be with selectivity circuit-breakers for over-current protection; its bimetallic element is as heating carrier; when circuit breaker overload; the electric current flowing through bimetallic element forces it to bend within a certain period of time; trigger circuit breaker trip mechanism action, guarantee circuit breaker trip.When specifically assembling, bimetallic element all mates with tripping mechanism usually at an initial position, and this position is determined according to the design side-play amount of concrete overload size of current and bimetallic element.But actual conditions are existing bimetallic element initial positions cannot regulate.Due to bimetallic element in use alternating bending and reply, often cause its initial position to produce variation, if variation cannot be returned to initial position more greatly, then cause the dropout precise decreasing of circuit breaker.And for some special workplace, owing to changing the overload electric current of circuit breaker, also need to readjust the initial position of bimetallic element.
on the other hand, the connecting plate made often through tin bronze between existing bimetallic element and terminal block welds together, and connecting plate all can be driven in the process that bimetallic element bends and replys to offset.The shortcoming existed is: because tin bronze hardness is comparatively large, cause bimetallic element be energized for a long time bending after recovery bad, usually effectively cannot get back to initial position, cause circuit breaker overload tripping characteristic to be forbidden, drop-away time difference is large.Meanwhile, existing circuit breaker is in the assembling process of carrying out bimetallic element, and because connecting plate rigidity is large, it is poor to cushion, and causes bimetal leaf to there is shaking phenomenon, affects the predetermined of initial position, causes the tripping characteristic of circuit breaker to change.
Summary of the invention
the present invention seeks to: a kind of circuit breaker bimetal element initial position regulator is provided, this device can regulate the initial position of bimetallic element, and guarantee that bimetallic element accurate and effective resets, thus greatly improve the applicability of existing circuit breaker bimetal element, guarantee accuracy and the consistency of bimetallic element operate time further, strengthen circuit breaker tripping stability.
technical scheme of the present invention is: a kind of circuit breaker bimetal element initial position regulator, comprises and being located in case for circuit breaker and be linked in sequence fixing terminal block, connecting plate and bimetallic element; It is characterized in that the side of described bimetallic element is provided with screw adjustment seat, described screw adjustment seat is provided with screwed hole, the adjustment screw pointing to bimetallic element is provided with in screwed hole, and the opposite side of bimetallic element is provided with elastic component, this elastic component applies the elastic force be against with bimetallic element in adjustment screw.
further, elastic component described in the present invention is the V-arrangement elastic support that sheet metal or band (having certain elasticity) bend, during concrete assembling, this V-arrangement elastic support while be pressed on bimetallic element, another side then compresses case for circuit breaker inwall, thus can apply elastic force and withstood in adjustment screw by bimetallic element.
or elastic component described in the present invention also can adopt conventional spring.
preferably, terminal block described in the present invention and bimetallic element are all welded and fixed with connecting plate.
further, the adjustment seat of screw described in the present invention is fixed or is shaped in case for circuit breaker.
preferably, connecting plate described in the present invention is T2M copper plate, and its sectional area and the current specification designed by circuit breaker match.The material comparing tin bronze plate due to T2M copper plate is softer, and hardness is lower, and the connection therefore in the present invention between bimetallic element and terminal block is actually and is flexible coupling.The advantage be flexible coupling has two: 1, can not to bimetallic element be energized for a long time bending after reply cause obstruction, guarantee that bimetallic element can get back to initial position more reliably, strengthen circuit breaker tripping stability; 2, in assembling process, T2M copper plate can play cushioning effect, effectively prevents bimetallic element impacted circuit breaker tripping characteristic by vibrations.
the present invention, when specifically using, regulates the initial position of bimetallic element by adjustment screw, then implement location by elastic component to bimetallic element, meet with this bimetallic element initial position applicable requirements tackling different current specification circuit breaker.And due to the effect of elastic component, can guarantee to be energized bending after bimetallic element effectively get back to initial position, further enhancing the recovery of bimetallic element, improve circuit breaker tripping stability.
advantage of the present invention is:
1. this circuit breaker bimetal element initial position regulator provided by the invention, can regulate the initial position of bimetallic element, and guarantee that bimetallic element accurate and effective resets, thus substantially increase the applicability of bimetallic element when tackling different current specification circuit breaker, further ensure that accuracy and the consistency of bimetallic element operate time, enhance circuit breaker tripping stability.
2. this circuit breaker bimetal element initial position regulator provided by the invention, owing to adopting T2M copper plate to be flexible coupling between its bimetallic element and terminal block further, advantage is:
1) can not to bimetallic element be energized for a long time bending after reply cause obstruction, guarantee that bimetallic element can get back to initial position more reliably, strengthen circuit breaker tripping stability;
2) in assembling process, T2M copper plate can play cushioning effect, effectively prevents bimetallic element impacted circuit breaker tripping characteristic by vibrations.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is structural representation of the present invention.
wherein: 1, case for circuit breaker; 2, terminal block; 3, connecting plate; 4, bimetallic element; 5, screw adjustment seat; 6, adjustment screw; 7, elastic component.
Embodiment
embodiment: shown in composition graphs 1, is described this circuit breaker bimetal element initial position regulator provided by the invention.The present embodiment the circuit breaker that is suitable for be band selectivity circuit-breakers for over-current protection conventional at present, be provided with terminal block 2, connecting plate 3 and bimetallic element 4 that order is welded and fixed in its case for circuit breaker 1; The side of described bimetallic element 4 is provided with screw adjustment seat 5, and this screw adjustment seat 5 is shaped in case for circuit breaker 1.Described screw adjustment seat 5 is provided with screwed hole, the screw that this adjustment screw of adjustment screw 6(pointing to bimetallic element 4 selects the pitch 0.35 meeting GB/177 standard is provided with) in screwed hole, and the opposite side of bimetallic element 4 is provided with elastic component 7, the V-arrangement elastic support that in the present embodiment, this elastic component 7 bends for sheet metal.Specifically as shown in Figure 1, during assembling, the elastic support of V-arrangement described in the present embodiment while be welded and fixed with the vertical edge side of the connecting plate 3 of L shape, because the vertical edge opposite side of this connecting plate 3 and bimetallic element 4 are welded and fixed, therefore this limit of V-arrangement elastic support is pressed on bimetallic element 4 indirectly by connecting plate 3; The another side of V-arrangement elastic support then compresses case for circuit breaker 1 inwall, thus can apply elastic force and withstood in adjustment screw 6 by bimetallic element 4.
the present embodiment is when specifically using, the initial position of bimetallic element 4 is regulated by adjustment screw 6, then by V-arrangement elastic support, location is implemented to bimetallic element 4, with this meet tackle different current specification time for the applicable requirements of bimetallic element initial position.And due to the effect of V-arrangement elastic support, can guarantee to be energized bending after bimetallic element 4 effectively get back to initial position, further enhancing the recovery of bimetallic element 4, improve circuit breaker tripping stability.
connecting plate 3 described in the present embodiment is T2M copper plate preferably, and its sectional area and the current specification designed by circuit breaker match.The material comparing tin bronze plate due to T2M copper plate is softer, and hardness is lower, and the connection therefore in the present embodiment between bimetallic element 4 and terminal block 2 is actually and is flexible coupling.The advantage be flexible coupling has two: 1, can not cause obstruction to the long-time reply after bending that is energized of bimetallic element 4, guarantee that bimetallic element 4 can get back to initial position more reliably, strengthen circuit breaker tripping stability; 2, in assembling process, T2M copper plate can play cushioning effect, effectively prevents bimetallic element 4 from impacting circuit breaker tripping characteristic by vibrations.
certain above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the Spirit Essence of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a circuit breaker bimetal element initial position regulator, comprises and being located in case for circuit breaker (1) and the terminal block (2) being linked in sequence fixing, connecting plate (3) and bimetallic element (4); It is characterized in that the side of described bimetallic element (4) is provided with screw adjustment seat (5), described screw adjustment seat (5) is provided with screwed hole, the adjustment screw (6) pointing to bimetallic element (4) is provided with in screwed hole, and the opposite side of bimetallic element (4) is provided with elastic component (7), this elastic component applies the elastic force be against with bimetallic element (4) in adjustment screw (6), and described terminal block (2) and bimetallic element (4) are all welded and fixed with connecting plate (3).
2. circuit breaker bimetal element initial position regulator according to claim 1, is characterized in that the V-arrangement elastic support that described elastic component (7) bends for sheet metal or band.
3. circuit breaker bimetal element initial position regulator according to claim 1, is characterized in that described elastic component (7) is spring.
4. circuit breaker bimetal element initial position regulator according to claim 1, is characterized in that described screw adjustment seat (5) is fixing or be shaped in case for circuit breaker (1).
5. the circuit breaker bimetal element initial position regulator according to claim 1 or 2 or 3 or 4, is characterized in that described connecting plate (3) is for T2M copper plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167647.4A CN102693880B (en) | 2012-05-28 | 2012-05-28 | Circuit breaker bimetal element initial position regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167647.4A CN102693880B (en) | 2012-05-28 | 2012-05-28 | Circuit breaker bimetal element initial position regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102693880A CN102693880A (en) | 2012-09-26 |
| CN102693880B true CN102693880B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210167647.4A Active CN102693880B (en) | 2012-05-28 | 2012-05-28 | Circuit breaker bimetal element initial position regulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN102693880B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115621097B (en) * | 2022-12-18 | 2023-04-18 | 浙江正泰电器股份有限公司 | Time delay presetting method, device, equipment and storage medium of circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6160470A (en) * | 1994-01-21 | 2000-12-12 | O'carroll; Thomas | Circuit breaker |
| CN202167432U (en) * | 2011-07-20 | 2012-03-14 | 西门子公司 | Breaker |
| CN202616146U (en) * | 2012-05-28 | 2012-12-19 | 法泰电器（江苏）股份有限公司 | Breaker bimetallic component initial position adjusting device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4698606A (en) * | 1986-06-20 | 1987-10-06 | Westinghouse Electric Corp. | Circuit breaker with adjustable thermal trip unit |
| JP2000294110A (en) * | 1999-04-09 | 2000-10-20 | Tempearl Ind Co Ltd | Method for mounting bimetal adjusting screw of wiring breaker |
| JP5041542B2 (en) * | 2008-04-25 | 2012-10-03 | 河村電器産業株式会社 | Bimetal adjustment structure of circuit breaker |
-
2012
- 2012-05-28 CN CN201210167647.4A patent/CN102693880B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6160470A (en) * | 1994-01-21 | 2000-12-12 | O'carroll; Thomas | Circuit breaker |
| CN202167432U (en) * | 2011-07-20 | 2012-03-14 | 西门子公司 | Breaker |
| CN202616146U (en) * | 2012-05-28 | 2012-12-19 | 法泰电器（江苏）股份有限公司 | Breaker bimetallic component initial position adjusting device |
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| Publication number | Publication date |
|---|---|
| CN102693880A (en) | 2012-09-26 |
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