CN220796629U - Exhaust passage for circuit breaker - Google Patents
Exhaust passage for circuit breaker Download PDFInfo
- Publication number
- CN220796629U CN220796629U CN202322311668.5U CN202322311668U CN220796629U CN 220796629 U CN220796629 U CN 220796629U CN 202322311668 U CN202322311668 U CN 202322311668U CN 220796629 U CN220796629 U CN 220796629U
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- CN
- China
- Prior art keywords
- circuit breaker
- exhaust passage
- larger
- arc extinguishing
- exhaust
- 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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- 238000004880 explosion Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an exhaust passage for a circuit breaker, and belongs to the technical field of circuit breakers. The circuit breaker is respectively provided with an arc extinguish chamber and a circular rotating shaft, the circular rotating shaft is sleeved with a moving contact, an exhaust channel is formed by the top space of the arc extinguish chamber, and the direction of the exhaust channel along which the moving contact is opened is larger and larger. The exhaust channel is directly formed by the top space of the arc extinguishing chamber in the circuit breaker, compared with the prior art, the whole weight of the whole circuit breaker is lightened, the time for assembling the isolating sheet is saved, the assembly efficiency is quickened, and the production cost is reduced.
Description
Technical Field
The utility model relates to an exhaust passage for a circuit breaker, and belongs to the technical field of circuit breakers.
Background
In the prior art, for example, as shown in fig. 1, the exhaust passage of the circuit breaker is formed by the gap between the upper partition plate 42, the middle partition plate 43 and the lower partition plate 44, so as to realize the function of exhaust.
However, the exhaust passage is formed by providing two partition plates, and thus the overall weight of the entire circuit breaker and the assembly process are increased, thereby reducing the production efficiency and eventually increasing the production cost.
For this reason, it is necessary to design an exhaust passage for a circuit breaker to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the technical problems mentioned in the background art, the utility model aims to realize the function of exhausting without increasing the whole weight of the breaker, so that the production efficiency (assembly efficiency) is improved and the whole weight of the whole breaker is reduced compared with the condition of increasing the whole weight, and finally the production cost is reduced;
the method is realized by the following technical scheme:
the utility model provides an exhaust passage for circuit breaker, be equipped with explosion chamber and circular pivot respectively in the circuit breaker, cup joint the moving contact in the circular pivot, its characterized in that: the exhaust channel is formed by the top space of the arc extinguishing chamber, and the opening direction of the moving contact of the exhaust channel is larger and larger.
Preferably, one end of the exhaust passage is communicated to the outside of the circuit breaker.
Preferably, the arc extinguishing chambers on the circuit breaker are arranged in two, the movable contact comprises a conductive rod, the two ends of the conductive rod are respectively provided with a movable contact, the conductive rod is sleeved on the circular rotating shaft, and each movable contact is located in the arc extinguishing chamber and corresponds to each exhaust passage.
Preferably, the exhaust passage is larger and larger along the opening direction of the movable contact.
Preferably, the circuit breaker is further provided with two fixed contacts, and the two fixed contacts are contacted with or separated from the movable contact.
The exhaust passage is configured as described above, so that the gas in the circuit breaker can be exhausted as early as possible, and the moving contact and the fixed contact can be opened and closed.
The beneficial effects of the utility model are as follows: the exhaust channel is directly formed by the top space of the arc extinguishing chamber in the circuit breaker, compared with the prior art, the whole weight of the whole circuit breaker is lightened, the time for assembling the isolating sheet is saved, the assembly efficiency is quickened, and the production cost is reduced.
Drawings
FIG. 1 is a schematic diagram of an exhaust passage according to the prior art;
FIG. 2 is a schematic view of the structure of the present utility model, wherein the arrow direction is the exhaust direction;
FIG. 3 is a schematic view of the portion A in FIG. 2;
in the figure: an arc extinguishing chamber 1; arc extinguishing grid plates 2; an exhaust passage 3; a circular rotating shaft 4; and a movable contact 5.
Detailed Description
The utility model will be further described with reference to the following detailed drawings, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 2-3, an exhaust passage for a circuit breaker is provided with an arc extinguishing chamber 1 and a circular rotating shaft 4 respectively, a moving contact 5 is sleeved on the circular rotating shaft 4, the exhaust passage 3 is formed by the top space of the arc extinguishing chamber 1, and the opening direction of the moving contact 5 of the exhaust passage 3 is larger and larger.
One end of the exhaust passage 3 communicates to the outside of the circuit breaker.
The explosion chamber 1 on the circuit breaker sets up to two, and movable contact 5 includes the conducting rod, and the both ends of conducting rod are equipped with the movable contact respectively, and the conducting rod cup joints on circular pivot 4, and every movable contact all is located explosion chamber 1 to correspond with every exhaust passage.
An arc extinguishing grating sheet 2 is arranged in the arc extinguishing chamber 1, an exhaust passage 3 of the arc extinguishing chamber 1 is communicated, and the arc extinguishing grating sheet 2 is abutted against the exhaust passage 3.
Working principle: when the circuit breaker is switched on and off, the movable contact 5 and the fixed contact are closed or separated, when the circuit is electrified, an arc is generated between the movable contact 5 and the fixed contact along with the opening and closing of the movable contact 5 and the fixed contact, the arc enters the arc extinguishing chamber 1 and is separated into small-section arcs by the arc extinguishing grid plates 2 in the arc extinguishing chamber 1, the arcs are weakened, and the weakened arcs flow into the exhaust channel 3;
in addition, the number of the two exhaust channels 3 is determined according to the number of the moving contacts 5 and the number of the fixed contacts where the circular rotating shaft 4 is located, and when the circular rotating shaft 4 rotates with the aid of an operating mechanism (the operating mechanism in the utility model adopts the operating mechanism in the prior art), the two moving contacts 5 can be simultaneously contacted with the two fixed contacts, so that arc extinction is simultaneously required in the two arc extinguishing chambers 1, and then gas from each arc extinguishing chamber 1 to the exhaust channel 3 is simultaneously exhausted.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, but is capable of numerous variations and modifications without departing from the spirit and scope of the utility model as hereinafter claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides an exhaust passage for circuit breaker, be equipped with explosion chamber and circular pivot respectively in the circuit breaker, cup joint the moving contact in the circular pivot, its characterized in that: the exhaust channel is formed by the top space of the arc extinguishing chamber, and the opening direction of the moving contact of the exhaust channel is larger and larger.
2. An exhaust passage for a circuit breaker according to claim 1, wherein: one end of the exhaust passage communicates to the outside of the circuit breaker.
3. An exhaust passage for a circuit breaker according to claim 1, wherein: the arc extinguishing chambers on the circuit breaker are arranged in two, the movable contact comprises a conductive rod, the two ends of the conductive rod are respectively provided with a movable contact, the conductive rod is sleeved on a circular rotating shaft, and each movable contact is located in the arc extinguishing chamber and corresponds to each exhaust channel.
4. A vent passage for a circuit breaker according to claim 3, wherein: the exhaust passage is larger and larger along the opening direction of the movable contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322311668.5U CN220796629U (en) | 2023-08-25 | 2023-08-25 | Exhaust passage for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322311668.5U CN220796629U (en) | 2023-08-25 | 2023-08-25 | Exhaust passage for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220796629U true CN220796629U (en) | 2024-04-16 |
Family
ID=90666226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322311668.5U Active CN220796629U (en) | 2023-08-25 | 2023-08-25 | Exhaust passage for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220796629U (en) |
-
2023
- 2023-08-25 CN CN202322311668.5U patent/CN220796629U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |