CN101916695B - Double-layer electric arc isolation device of miniature circuit breaker - Google Patents
Double-layer electric arc isolation device of miniature circuit breaker Download PDFInfo
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- CN101916695B CN101916695B CN2010102469472A CN201010246947A CN101916695B CN 101916695 B CN101916695 B CN 101916695B CN 2010102469472 A CN2010102469472 A CN 2010102469472A CN 201010246947 A CN201010246947 A CN 201010246947A CN 101916695 B CN101916695 B CN 101916695B
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- dividing plate
- handle
- electric arc
- housing
- circuit breaker
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Abstract
The invention discloses a double-layer electric arc isolation device of a miniature circuit breaker, which comprises a handle and a shell, wherein the shell is internally provided with an electromagnetic mechanism and an action mechanism, one end of the handle extends into the shell and is connected with the shell through a handle post, the action mechanism is connected with the shell through a pin shaft, the handle is connected with the action mechanism, the shell is provided with an outer layer clapboard and an inner layer clapboard, the inner layer clapboard is used for isolating the electromagnetic mechanism from the handle and the action mechanism, the outer layer clapboard is connected with the inner layer clapboard, the handle is positioned on the outer side of the outer layer clapboard, the action mechanism is positioned on the inner side of the outer layer clapboard, a notch is arranged on the outer layer clapboard, and a bulge is arranged on the action mechanism and opposite to the bulge. The double-layer electric arc isolation device of the miniature circuit breaker can guarantee the safety of the product and people by using the inner layer clapboard and the outer layer clapboard to block a generated electric arc twice.
Description
Technical field
The present invention relates to a kind of circuit breaker electric arc spacer assembly, particularly a kind of arc shielding apparatus that is used for miniature circuit breaker.
Background technology
At present the manual divide-shut brake of miniature circuit breaker basic realized with manual manipulation mode through handle; When circuit breaker has fault current; In the moment that dynamic and static contact is opened, can produce electric arc between the dynamic and static contact, most electric arcs can be guided to arc control device through arc leading angle and extinguish.But sub-fraction electric arc is arranged sometimes along from the slit of handle and housing, leaking ejection in the other direction.The electric arc of revealing ejection on the one hand might be black with handle burn burning, and then influence operating characteristics and reliability; Also might bring potential safety hazard on the other hand, cause the damage of electric equipment perhaps operating personnel's health to be brought injury electric equipment or operating personnel etc.Present most miniature circuit breaker does not all have the corresponding protection measure to the electric arc that from the housing slit, leaks ejection; Even have individually; Also be to use actuating mechanism part combination realization protection in the housing; The centre has the slit not seal, and still possibly have the ejection of part electric arc, can not play real isolation, protective action.
Summary of the invention
To the deficiency of above-mentioned prior art, the technical problem that the present invention will solve provides a kind of arc shielding apparatus that is specifically designed to miniature circuit breaker
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of double-layer electric arc isolation device of miniature circuit breaker comprises handle, housing; Be provided with electromagnetic mechanism and actuating mechanism in the said housing, an end of said handle stretches in the said housing and is connected with said housing through the one handle post, and said actuating mechanism is connected with said housing through a bearing pin; Said handle is connected with said actuating mechanism, and said housing is provided with an outer dividing plate and an internal layer dividing plate, and said internal layer dividing plate separates said electromagnetic mechanism and said handle, actuating mechanism; Said outer dividing plate is connected with said internal layer dividing plate one end; Said handle is positioned at the outside of said outer dividing plate, and said actuating mechanism is positioned at the inboard of said outer dividing plate, and said outer dividing plate is provided with breach; Said actuating mechanism is provided with a convexity, and said breach is relative with said convexity.
Preferably, said outer dividing plate is " people " font with said internal layer dividing plate and is connected, said internal layer dividing plate and said outer dividing plate common sparing dividing plate.
Preferably, shared part dividing plate and the inboard inner walls seamless link of said handle of said internal layer dividing plate and said outer dividing plate.
Preferably, to be with said handle post that the center of circle is circular-arc for said outer dividing plate.
Technique scheme has following beneficial effect: adopt this double-layer electric arc isolation device of miniature circuit breaker; When fault current, in the moment that dynamic and static contact is opened, the reverse leakage electric arc that produces between contact is at first blocked by the internal layer dividing plate in the housing; If still have fraction to leak; But this moment is along with the action of actuating mechanism, and the convexity on the actuating mechanism is docked with breach on the outer dividing plate and is spliced into an integral body, and this overall structure stops the fraction electric arc of leakage once more; Guarantee that electric arc can not or seldom leak assurance product and personal security from the gap location of handle and housing.This double-layer electric arc isolation device of miniature circuit breaker carries out stopping for twice to the electric arc that produces through internal layer dividing plate, outer dividing plate, and having solved does not have the arc measure or the gapped arc of part is only arranged and still can not stop the technical problem of electric arc from the handle ejection in the prior art.
Description of drawings
Fig. 1 is the front view of the embodiment of the invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the schematic three dimensional views of the side-looking of housing.
Fig. 4 is the schematic three dimensional views of overlooking of housing.
Fig. 5 is the front view of housing.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
Like Fig. 1, shown in 2; This double-layer electric arc isolation device of miniature circuit breaker comprises housing 1, handle 2; Be provided with electromagnetic mechanism 4 and actuating mechanism 3 in the housing 1; One end of handle 2 stretches in the housing 1 and is connected with housing 1 through one handle post 5, and actuating mechanism 3 is connected with housing 1 through a bearing pin 6, and handle 2 is connected with actuating mechanism 3.Rotation through handle 2 drives actuating mechanism 3 actions, and then drives the contact action.Actuating mechanism 3 is provided with a convexity 7, and this convexity 7 is moved with the action of action mechanism 3.
Like Fig. 3,4, shown in 5, housing 1 is provided with an outer dividing plate 9 and an internal layer dividing plate 8, and outer dividing plate 9 is " people " font with internal layer dividing plate 8 and is connected, internal layer dividing plate 8 and outer dividing plate 9 common sparing dividing plates 11.Inner walls 12 seamless links of the end of this common sparing dividing plate 11 and handle 2 inboards.The other end of internal layer dividing plate 8 separates electromagnetic mechanism 4 and handle 2, actuating mechanism 3 to extending below.It is circular-arc that outer dividing plate 9 be with handle post 5 that the center of circle is, and outer dividing plate 9 is provided with a breach 10, and the convexity 7 on this breach 10 and the actuating mechanism 3 is relative, and size adapts.The other end of outer dividing plate 9 extends on the inwall of housing 1 opposite side; So outer dividing plate 9 and common sparing dividing plate 11 just separate handle 2 and actuating mechanism 3; Handle 2 is positioned at the outside of outer dividing plate 9; Actuating mechanism 3 is positioned at the inboard of outer dividing plate, and handle 2 can freely rotate in the outside of outer dividing plate 9.
This double-layer electric arc isolation device of miniature circuit breaker in the course of the work, when fault current produced, dynamic and static contact was opened moment, the reverse leakage electric arc that electromagnetic mechanism 4 produces is at first blocked by the internal layer dividing plate 8 in the housing 1.If still have fraction to leak; But this moment, actuating mechanism 3 is action simultaneously also in the moment that dynamic and static contact is opened, and the convexity 7 on the actuating mechanism 3 is docked with breach 10 on the outer dividing plate; Be spliced into an integral body; This overall structure can stop the fraction electric arc of revealing once more, and this sub-fraction electric arc also is limited in the housing 1, guarantees that electric arc can not or seldom leak from the gap location of handle 2 with housing 1.
Outer dividing plate 9 and internal layer dividing plate 8 are through being " people " font ways of connecting; Electromagnetic mechanism 4, actuating mechanism 3, handle 2 are segmented in three different zones; The electric arc that produces between contact will pass through outer dividing plate 9 and internal layer dividing plate 8 two-layer dividing plates just can reach the gap location between handle 2 housings 1; For reverse leakage electric arc, it is difficult to break through simultaneously this twice isolation barrier, therefore can effectively guarantee product and personal security.
This double-layer electric arc isolation device of miniature circuit breaker carries out stopping for twice to the electric arc that produces through internal layer dividing plate, outer dividing plate; Through internal layer dividing plate, outer dividing plate and actuating mechanism handle and electromagnetic mechanism are separated fully; The electric arc that produces between contact is limited in the housing fully, and having solved does not have the arc measure or the gapped arc of part is only arranged and still can not stop the technical problem of electric arc from handle ejection in the prior art.
More than the double-layer electric arc isolation device of miniature circuit breaker that the embodiment of the invention provided has been carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (4)
1. a double-layer electric arc isolation device of miniature circuit breaker comprises handle, housing; Be provided with electromagnetic mechanism and actuating mechanism in the said housing, an end of said handle stretches in the said housing and is connected with said housing through the one handle post, and said actuating mechanism is connected with said housing through a bearing pin; Said handle is connected with said actuating mechanism, it is characterized in that: said housing is provided with an outer dividing plate and an internal layer dividing plate, and said internal layer dividing plate separates said electromagnetic mechanism and said handle, actuating mechanism; Said outer dividing plate is connected with said internal layer dividing plate one end; Said handle is positioned at the outside of said outer dividing plate, and said actuating mechanism is positioned at the inboard of said outer dividing plate, and said outer dividing plate is provided with breach; Said actuating mechanism is provided with a convexity, and said breach is relative with said convexity.
2. double-layer electric arc isolation device of miniature circuit breaker according to claim 1 is characterized in that: said outer dividing plate is " people " font with said internal layer dividing plate and is connected, said internal layer dividing plate and said outer dividing plate common sparing dividing plate.
3. double-layer electric arc isolation device of miniature circuit breaker according to claim 2 is characterized in that: the inner walls seamless link that part dividing plate that said internal layer dividing plate and said outer dividing plate are shared and said handle are inboard.
4. double-layer electric arc isolation device of miniature circuit breaker according to claim 1 is characterized in that: it is circular-arc that said outer dividing plate is with said handle post that the center of circle is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102469472A CN101916695B (en) | 2010-08-06 | 2010-08-06 | Double-layer electric arc isolation device of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102469472A CN101916695B (en) | 2010-08-06 | 2010-08-06 | Double-layer electric arc isolation device of miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101916695A CN101916695A (en) | 2010-12-15 |
| CN101916695B true CN101916695B (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102469472A Active CN101916695B (en) | 2010-08-06 | 2010-08-06 | Double-layer electric arc isolation device of miniature circuit breaker |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293460B (en) * | 2016-04-12 | 2021-05-18 | 上海良信电器股份有限公司 | Circuit breaker arc isolation structure |
| CN108666185B (en) * | 2017-03-31 | 2023-12-05 | 温州圣普电气有限公司 | Large-current miniature circuit breaker |
| CN114420495B (en) * | 2022-03-29 | 2022-07-01 | 深圳市脉联电子有限公司 | Arc isolation dustproof structure and circuit breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4604507A (en) * | 1983-12-26 | 1986-08-05 | Merlin Gerin | Miniature circuit breaker with improved insulation level |
| CN1186320A (en) * | 1996-12-23 | 1998-07-01 | 施耐德电器公司 | Electrical circuit breaker with safety shield |
| CN1716494A (en) * | 2004-07-01 | 2006-01-04 | 富士电机机器制御株式会社 | Breaker |
| CN201438448U (en) * | 2009-04-29 | 2010-04-14 | 温州波普电气有限公司 | Small circuit breaker |
| CN201804818U (en) * | 2010-08-06 | 2011-04-20 | 上海良信电器股份有限公司 | Double-layer electric arc isolation device of miniature circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2485254A1 (en) * | 1980-06-19 | 1981-12-24 | Merlin Gerin | MINIATURE UNIPOLAR AND NEUTRAL CIRCUIT BREAKER |
-
2010
- 2010-08-06 CN CN2010102469472A patent/CN101916695B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4604507A (en) * | 1983-12-26 | 1986-08-05 | Merlin Gerin | Miniature circuit breaker with improved insulation level |
| CN1186320A (en) * | 1996-12-23 | 1998-07-01 | 施耐德电器公司 | Electrical circuit breaker with safety shield |
| CN1716494A (en) * | 2004-07-01 | 2006-01-04 | 富士电机机器制御株式会社 | Breaker |
| CN201438448U (en) * | 2009-04-29 | 2010-04-14 | 温州波普电气有限公司 | Small circuit breaker |
| CN201804818U (en) * | 2010-08-06 | 2011-04-20 | 上海良信电器股份有限公司 | Double-layer electric arc isolation device of miniature circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN101916695A (en) | 2010-12-15 |
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