CN217903056U - Plastic casing type circuit breaker - Google Patents
Plastic casing type circuit breaker Download PDFInfo
- Publication number
- CN217903056U CN217903056U CN202222290398.XU CN202222290398U CN217903056U CN 217903056 U CN217903056 U CN 217903056U CN 202222290398 U CN202222290398 U CN 202222290398U CN 217903056 U CN217903056 U CN 217903056U
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- arc
- extinguishing
- extinguishing piece
- base
- circuit breaker
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Abstract
The utility model relates to a plastic casing formula circuit breaker, a serial communication port, including base and upper cover, be provided with the explosion chamber in the base, the explosion chamber includes arc-extinguishing piece and arc-extinguishing piece mounting panel, the arc-extinguishing piece is fixed on the arc-extinguishing piece mounting panel, the afterbody of arc-extinguishing piece sets up to upper cover direction slope, afterbody one side of arc-extinguishing piece is provided with flash barrier and insulation board, flash barrier and insulation board are fixed between upper cover and the base, the flash barrier is close to the arc-extinguishing piece sets up. The utility model discloses a set up flash barrier and insulation board, the electric arc separation that will flee from carries out the arc extinguishing to it once more in the explosion chamber, avoids electric arc to the influence of wiring end, also can improve its arc extinguishing effect.
Description
Technical Field
The utility model relates to a circuit breaker technical field especially relates to a plastic casing formula circuit breaker.
Background
The contacts of the circuit breaker, when opened and closed, generate an arc due to the gas discharge. It not only has very big destruction to the contact of circuit breaker, therefore general circuit breaker all is equipped with the explosion chamber structure, and the explosion chamber mainly comprises mounting panel and arc chute piece, and wherein the arc chute piece is cut apart electric arc, realizes destroying electric arc in the arc chute piece, but has few electric arc to run to the wiring end from the arc chute piece, influences the arc extinguishing effect and leads to the fact the influence to the wiring end.
Disclosure of Invention
An object of the utility model is to provide a plastic casing formula circuit breaker sets up insulation board and flash barrier at the afterbody of arc-extinguishing piece, with the free electric arc restriction of part in the explosion chamber to guarantee its arc extinguishing effect, avoid electric arc to lead to the fact the influence to the line.
In order to achieve the purpose, the utility model provides the following technical proposal,
the utility model provides a plastic casing formula circuit breaker, a serial communication port, including base and upper cover, be provided with the explosion chamber in the base, the explosion chamber includes arc-extinguishing piece and arc-extinguishing piece mounting panel, the arc-extinguishing piece is fixed on the arc-extinguishing piece mounting panel, the afterbody of arc-extinguishing piece sets up to upper cover direction slope, afterbody one side of arc-extinguishing piece is provided with flash barrier and insulation board, flash barrier and insulation board are fixed between upper cover and the base, the flash barrier is close to the arc-extinguishing piece sets up.
The utility model discloses further set up, the bottom of explosion chamber is provided with the static contact, the static contact is fixed in the base, it is provided with the moving contact to correspond the static contact in the base.
The utility model discloses further set up, the static contact extends to binding post one side and forms connecting portion, through bolted connection between connecting portion and the base.
The utility model has the advantages that: the utility model discloses a set up flash barrier and insulation board, the electric arc separation that will flee from carries out the arc extinguishing to it once more in the explosion chamber, avoids electric arc to the influence of wiring end, also can improve its arc extinguishing effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numeral, 10, a base; 20. an upper cover; 30. an arc extinguishing chamber; 40. an arc extinguishing sheet; 50. mounting a plate; 60. an arc baffle plate; 70. an insulating plate; 80. static contact; 90. a moving contact; 100. a connecting portion; 110. a bolt;
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
As shown in fig. 1, the utility model relates to a plastic casing formula circuit breaker, including base 10 and upper cover 20, be provided with explosion chamber 30 in the base 10, explosion chamber 30 includes arc-extinguishing piece 40 and arc-extinguishing piece mounting panel 50, arc-extinguishing piece 40 is fixed on the arc-extinguishing piece mounting panel 50, the afterbody of arc-extinguishing piece 40 sets up to the slope of upper cover 20 direction, afterbody one side of arc-extinguishing piece 40 is provided with flash barrier 60 and insulation board 70, flash barrier 60 and insulation board 70 are fixed between upper cover 20 and the base 10, flash barrier 60 is close to arc-extinguishing piece 40 sets up, and wherein flash barrier highly be higher than the height of explosion chamber.
The bottom of the arc extinguish chamber 30 is provided with a static contact 80, the static contact 80 is fixed in the base 10, a movable contact 90 is arranged in the base 10 corresponding to the static contact 80, the static contact 80 extends to one side of the wiring terminal to form a connecting part 100, and the connecting part 100 is connected with the base 10 through a bolt 110. The fixed contact 80 is fixed through the bolt 110, and compared with the prior art in which the fixed contact is directly placed on the base 10, the stability of the fixed contact 80 is improved, so that the fixed contact is more reliable when in contact with the movable contact 90.
The utility model discloses a set up flash barrier 60 and insulation board 70, the electric arc separation that will flee from is in explosion chamber 30, carries out the arc extinguishing to it once more, avoids electric arc to the influence of wiring end, also can improve its arc extinguishing effect.
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. The description and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in articles of commerce or systems including such elements.
The foregoing description shows and describes several preferred embodiments of the present invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, and is not to be construed as excluding other embodiments, but is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (3)
1. The utility model provides a plastic casing formula circuit breaker, its characterized in that, includes base and upper cover, be provided with the explosion chamber in the base, the explosion chamber includes arc-extinguishing piece and arc-extinguishing piece mounting panel, the arc-extinguishing piece is fixed on the arc-extinguishing piece mounting panel, the afterbody of arc-extinguishing piece sets up to the upper cover direction slope, afterbody one side of arc-extinguishing piece is provided with flash barrier and insulation board, flash barrier and insulation board are fixed between upper cover and the base, the flash barrier is close to the arc-extinguishing piece sets up.
2. The plastic case type circuit breaker according to claim 1, wherein a stationary contact is disposed at a bottom of the arc extinguish chamber, the stationary contact is fixed in the base, and a movable contact is disposed in the base corresponding to the stationary contact.
3. The plastic case circuit breaker of claim 2, wherein the stationary contact extends toward the terminal to form a connection portion, and the connection portion is connected to the base by a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222290398.XU CN217903056U (en) | 2022-08-30 | 2022-08-30 | Plastic casing type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222290398.XU CN217903056U (en) | 2022-08-30 | 2022-08-30 | Plastic casing type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217903056U true CN217903056U (en) | 2022-11-25 |
Family
ID=84108458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222290398.XU Active CN217903056U (en) | 2022-08-30 | 2022-08-30 | Plastic casing type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217903056U (en) |
-
2022
- 2022-08-30 CN CN202222290398.XU patent/CN217903056U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |