CN205122520U - Promote circuit breaker of leading -in explosion chamber of electric arc - Google Patents
Promote circuit breaker of leading -in explosion chamber of electric arc Download PDFInfo
- Publication number
- CN205122520U CN205122520U CN201520928217.9U CN201520928217U CN205122520U CN 205122520 U CN205122520 U CN 205122520U CN 201520928217 U CN201520928217 U CN 201520928217U CN 205122520 U CN205122520 U CN 205122520U
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- CN
- China
- Prior art keywords
- circuit breaker
- curved baffle
- cowl
- handle
- base
- 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.)
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Abstract
The utility model discloses a promote circuit breaker of leading -in explosion chamber of electric arc, including the base and the upper cover of mutual lock, the upper left corner of circuit breaker is equipped with the handle, the handle stretches into the circuit breaker through the trace inside, corresponds with the rotation of handle, and inner wall of the base is rotary support under upper left corner position is equipped with, and the upper cover inner wall is equipped with rotary support, its characterized in that in upper left corner position: rotary support's periphery is equipped with cowl A down, and partly the low right side is partly high on cowl A's a left side, and upward rotary support's periphery is equipped with cowl B, and hang down on cowl B's a left side half high right half, when base and upper cover lock were in the same place, cowl A's left half -sum cowl B's left half -phase supported and forms closedly, and the breach that supplies the trace activity is reserved on cowl A's right half -sum cowl B's the right side between half. The utility model discloses can improve the atmospheric pressure difference of product inside and outside, promote electric arc to remove rather than spout from the handle to the gas outlet department of explosion chamber direction, improve the breaking capacity of product.
Description
Technical field
The utility model relates to a kind of electrical switchgear, is specifically related to a kind of high-breaking miniature breaker.
Background technology
High-breaking miniature breaker plays the effect of overload and short-circuit protection in electric wiring, has isolated from power function simultaneously.The high-breaking miniature breaker of prior art, comprise the base and upper cover that mutually fasten, the upper left corner of circuit breaker is provided with handle, handle stretches into circuit breaker internal by trace, open wide completely or partly isolate between the activity space of handle and circuit breaker internal, the draught head of such product inside and outside is little, the electric arc that circuit breaker produces when disjunction can easily spray from handle outward, instead of to move to the gas outlet place in arc control device direction and be beneficial to fast arc extinction, therefore the breaking capacity of product is poor.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of draught head improving product inside and outside, promotes that electric arc moves to the gas outlet place in arc control device direction instead of from handle ejection, improves the circuit breaker of product breaking capacity.
The utility model is implemented by following technical solution:
Promote that electric arc imports the circuit breaker of arc control device, comprise the base and upper cover that mutually fasten, the upper left corner of circuit breaker is provided with handle, handle stretches into circuit breaker internal by trace, corresponding with the rotation of handle, base inner wall is provided with lower rotation post at upper left position, upper cover inwall is rotation post on upper left position is provided with, it is characterized in that: the outer of lower rotation post is arranged with curved baffle A, the low right side, a left side half half of curved baffle A is high, the outer of upper rotation post is arranged with curved baffle B, and the high right side half, a left side half of curved baffle B is low; When base and upper cover snap together, a left side of the left half-sum curved baffle B of curved baffle A partly offsets to be formed and closes, and reserves the breach for trace activity between the right side half of the right half-sum curved baffle B of curved baffle A.
The right side half height of curved baffle A maintains an equal level with base side wall height.
The right side half of curved baffle B is highly zero.
After adopting such scheme, due to the setting of curved baffle A and curved baffle B, can will carry out between the activity space of handle and circuit breaker internal isolating the small gap only leaving trace activity, so just substantially increase the draught head of product inside and outside, so the electric arc well making circuit breaker produce when disjunction can not spray from handle, and because internal pressure is large, promote that electric arc moves to the gas outlet place in arc control device direction and be beneficial to fast arc extinction, thus improve the breaking capacity of product.
Accompanying drawing explanation
The utility model has following accompanying drawing:
Fig. 1 is three-dimensional structure diagram of the present utility model (upper cover leaves local),
Structure chart when Fig. 2 is the utility model upper cover, base rightabout is opened.
Embodiment
As shown in the figure, promotion electric arc of the present utility model imports the circuit breaker of arc control device, comprise the base 8 and upper cover 4 that mutually fasten, the upper left corner of circuit breaker is provided with handle 3, handle 3 stretches into circuit breaker internal by trace 7, corresponding with the rotation of handle 3, base 8 inwall is provided with lower rotation post 10 at upper left position, upper cover 4 inwall rotation post 9 on upper left position is provided with, the outer of lower rotation post 10 is arranged with curved baffle A, the low right side, a left side half half of curved baffle A is high, the right side half height of curved baffle A maintains an equal level with base side wall height, the outer of upper rotation post 9 is arranged with curved baffle B, the high right side half, a left side half of curved baffle B is low, the right side half of curved baffle B is highly zero, when base 8 and upper cover 4 snap together, a left side of the left half-sum curved baffle B of curved baffle A partly offsets and forms closed closed line 2, reserves the breach 5 for trace 7 activity between the right side half of the right half-sum curved baffle B of curved baffle A.
Claims (3)
1. promote that electric arc imports the circuit breaker of arc control device, comprise the base and upper cover that mutually fasten, the upper left corner of circuit breaker is provided with handle, handle stretches into circuit breaker internal by trace, corresponding with the rotation of handle, base inner wall is provided with lower rotation post at upper left position, upper cover inwall is rotation post on upper left position is provided with, it is characterized in that: the outer of lower rotation post is arranged with curved baffle A, the low right side, a left side half half of curved baffle A is high, the outer of upper rotation post is arranged with curved baffle B, and the high right side half, a left side half of curved baffle B is low; When base and upper cover snap together, a left side of the left half-sum curved baffle B of curved baffle A partly offsets to be formed and closes, and reserves the breach for trace activity between the right side half of the right half-sum curved baffle B of curved baffle A.
2. promotion electric arc according to claim 1 imports the circuit breaker of arc control device, it is characterized in that: the right side half height of curved baffle A maintains an equal level with base side wall height.
3. promotion electric arc according to claim 1 imports the circuit breaker of arc control device, it is characterized in that: the right side half of curved baffle B is highly zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928217.9U CN205122520U (en) | 2015-11-20 | 2015-11-20 | Promote circuit breaker of leading -in explosion chamber of electric arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928217.9U CN205122520U (en) | 2015-11-20 | 2015-11-20 | Promote circuit breaker of leading -in explosion chamber of electric arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122520U true CN205122520U (en) | 2016-03-30 |
Family
ID=55578104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520928217.9U Active CN205122520U (en) | 2015-11-20 | 2015-11-20 | Promote circuit breaker of leading -in explosion chamber of electric arc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122520U (en) |
-
2015
- 2015-11-20 CN CN201520928217.9U patent/CN205122520U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |