CN201804818U - Double-layer electric arc isolation device of miniature circuit breaker - Google Patents
Double-layer electric arc isolation device of miniature circuit breaker Download PDFInfo
- Publication number
- CN201804818U CN201804818U CN 201020283861 CN201020283861U CN201804818U CN 201804818 U CN201804818 U CN 201804818U CN 201020283861 CN201020283861 CN 201020283861 CN 201020283861 U CN201020283861 U CN 201020283861U CN 201804818 U CN201804818 U CN 201804818U
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- Prior art keywords
- dividing plate
- handle
- electric arc
- circuit breaker
- actuating mechanism
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Abstract
The utility model 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 utility model 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 realizes with manual manipulation mode by handle substantially, 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 by 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 or operating personnel's health is 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 leaks ejection from the housing slit; even have individually; also be to use actuating mechanism part combination realization protection in the housing; the centre has the slit not seal; still may have the ejection of part electric arc, can not play real isolation, protective action.
The utility model content
At above-mentioned the deficiencies in the prior art, the technical problems to be solved in the utility model 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 utility model adopts following technical scheme:
A kind of double-layer electric arc isolation device of miniature circuit breaker, comprise handle, housing, be provided with electromagnetic mechanism and actuating mechanism in the described housing, one end of described handle stretches in the described housing and is connected with described housing by the one handle post, described actuating mechanism is connected with described housing by a bearing pin, described handle is connected with described actuating mechanism, described housing is provided with an outer dividing plate and an internal layer dividing plate, described internal layer dividing plate is with described electromagnetic mechanism and described handle, actuating mechanism separates, described outer dividing plate is connected with described internal layer dividing plate one end, described handle is positioned at the outside of described outer dividing plate, and described actuating mechanism is positioned at the inboard of described outer dividing plate, and described outer dividing plate is provided with breach, described actuating mechanism is provided with a projection, and described breach is relative with described projection.
Preferably, described outer dividing plate is " people " font with described internal layer dividing plate and is connected, described internal layer dividing plate and described outer dividing plate common sparing dividing plate.
Preferably, the shared part dividing plate of described internal layer dividing plate and described outer dividing plate and the inner walls seamless link of described handle inboard.
Preferably, to be with described handle post that the center of circle is circular-arc for described outer dividing plate.
Technique scheme has following beneficial effect: adopt this double-layer electric arc isolation device of miniature circuit breaker, when fault current, moving, the moment that fixed 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, projection on the actuating mechanism is docked with breach on the outer dividing plate and is spliced into an integral body, this overall structure stops once more to the fraction electric arc of revealing, 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 by 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 utility model embodiment.
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 preferred embodiment of the present utility model is described in detail.
As shown in Figure 1, 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 by one handle post 5, actuating mechanism 3 is connected with housing 1 by a bearing pin 6, and handle 2 is connected with actuating mechanism 3.Rotation by handle 23 actions of drive actuating mechanism, and then drive the contact action.Actuating mechanism 3 is provided with a projection 7, and this projection 7 is moved with the action of action mechanism 3.
Shown in Fig. 3,4,5, 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 extension downwards separates electromagnetic mechanism 4 and handle 2, actuating mechanism 3.It is circular-arc that outer dividing plate 9 is with handle post 5 that the center of circle is, and outer dividing plate 9 is provided with a breach 10, and this breach 10 is relative with the projection 7 on the actuating mechanism 3, 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 is in moment that dynamic and static contact is opened, actuating mechanism 3 is action simultaneously also, projection 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 once more to the fraction electric arc of revealing, 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 by 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 just can reach gap location between handle 2 housings 1 through outer dividing plate 9 and internal layer dividing plate 8 two-layer dividing plates, 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 by internal layer dividing plate, outer dividing plate, by 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 completely restricted in housing, 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 double-layer electric arc isolation device of miniature circuit breaker that the utility model embodiment is provided be described in detail; for one of ordinary skill in the art; thought according to the utility model embodiment; part in specific embodiments and applications all can change; in sum; this description should not be construed as restriction of the present utility model, and all any changes of being made according to the utility model design philosophy are all within protection range of the present utility model.
Claims (4)
1. double-layer electric arc isolation device of miniature circuit breaker, comprise handle, housing, be provided with electromagnetic mechanism and actuating mechanism in the described housing, one end of described handle stretches in the described housing and is connected with described housing by the one handle post, described actuating mechanism is connected with described housing by a bearing pin, described handle is connected with described actuating mechanism, it is characterized in that: described housing is provided with an outer dividing plate and an internal layer dividing plate, described internal layer dividing plate is with described electromagnetic mechanism and described handle, actuating mechanism separates, described outer dividing plate is connected with described internal layer dividing plate one end, described handle is positioned at the outside of described outer dividing plate, and described actuating mechanism is positioned at the inboard of described outer dividing plate, and described outer dividing plate is provided with breach, described actuating mechanism is provided with a projection, and described breach is relative with described projection.
2. double-layer electric arc isolation device of miniature circuit breaker according to claim 1 is characterized in that: described outer dividing plate is " people " font with described internal layer dividing plate and is connected, described internal layer dividing plate and described 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 part dividing plate that described internal layer dividing plate and described outer dividing plate are shared and the inner walls seamless link of described handle 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 described outer dividing plate is with described handle post that the center of circle is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020283861 CN201804818U (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 |
|---|---|---|---|
| CN 201020283861 CN201804818U (en) | 2010-08-06 | 2010-08-06 | Double-layer electric arc isolation device of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804818U true CN201804818U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020283861 Expired - Lifetime CN201804818U (en) | 2010-08-06 | 2010-08-06 | Double-layer electric arc isolation device of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916695A (en) * | 2010-08-06 | 2010-12-15 | 上海良信电器股份有限公司 | Double-layer electric arc isolation device of miniature circuit breaker |
| CN102368460A (en) * | 2011-09-13 | 2012-03-07 | 上海诺雅克电气有限公司 | Miniature breaker with safety device |
-
2010
- 2010-08-06 CN CN 201020283861 patent/CN201804818U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916695A (en) * | 2010-08-06 | 2010-12-15 | 上海良信电器股份有限公司 | Double-layer electric arc isolation device of miniature circuit breaker |
| CN101916695B (en) * | 2010-08-06 | 2012-08-29 | 上海良信电器股份有限公司 | Double-layer electric arc isolation device of miniature circuit breaker |
| CN102368460A (en) * | 2011-09-13 | 2012-03-07 | 上海诺雅克电气有限公司 | Miniature breaker with safety device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110420 Effective date of abandoning: 20120829 |