CN215731556U - Arc extinguishing system for residual current circuit breaker - Google Patents
Arc extinguishing system for residual current circuit breaker Download PDFInfo
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- CN215731556U CN215731556U CN202121977825.0U CN202121977825U CN215731556U CN 215731556 U CN215731556 U CN 215731556U CN 202121977825 U CN202121977825 U CN 202121977825U CN 215731556 U CN215731556 U CN 215731556U
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- arc extinguishing
- side plate
- extinguishing system
- circuit breaker
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Abstract
The utility model relates to an arc extinguishing system for a residual current circuit breaker, which comprises a circuit breaker base, wherein a first arc extinguishing system and a second arc extinguishing system are fixedly arranged on two sides of the circuit breaker base, the volume of a first arc extinguishing cover is larger than that of a second arc extinguishing cover, the first arc extinguishing system is positioned between the base and an L-level shell, the first arc extinguishing system comprises a first arc extinguishing cover and a first arc extinguishing piece arranged in the first arc extinguishing cover, the first arc extinguishing cover is formed by connecting a first side plate, a second side plate and a third side plate, the first side plate and the second side plate are arranged in parallel, the third side plate is positioned at one end of the first side plate and the second side plate, an air generating hole is formed in the third side plate, and 9-11 pieces of the first arc extinguishing piece are arranged. According to the utility model, the N-level and the L-level in the leakage circuit breaker respectively adopt the arc extinguishing systems, so that the breaking capacity is improved; the size of the N-level arc extinguishing system is smaller than that of the L-level arc extinguishing system, so that the miniaturization of the whole structure is realized while the arc extinguishing effect is ensured.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to an arc extinguishing system for a residual current circuit breaker.
Background
The residual current circuit breaker generally comprises a shell, a live wire circuit breaking unit and a zero line circuit breaking unit, wherein the live wire circuit breaking unit comprises a live wire operating mechanism, a live wire tripping mechanism, a live wire moving contact, a live wire static contact, a live wire arc extinguishing cover and a live wire binding post. The zero line breaking unit comprises a zero line operating mechanism, a zero line tripping mechanism, a zero line moving contact, a zero line static contact and a zero line binding post. Live wire moving contact can produce a large amount of electric arcs with the live wire static contact when the contact, realizes the arc extinguishing function through the live wire arc extinguishing chamber that sets up, guarantees the breaking capacity and the power consumption safety of circuit breaker. Zero line moving contact and zero line static contact can produce a small amount of electric arcs when contacting, and current electric leakage circuit breaker does not have the function of carrying out the arc extinguishing to the zero line breaking unit, and in the long run, also can cause the surface of zero line moving contact and zero line static contact to be burnt by electric arc, serious can cause the contact to become invalid even to influence electric leakage circuit breaker's breaking capacity and life.
Disclosure of Invention
The utility model aims to provide an arc extinguishing system for a residual current circuit breaker, which adopts a double arc extinguishing system to improve the breaking capacity.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides an arc extinguishing system for residual-current circuit breaker, its characterized in that, includes the circuit breaker base, the fixed first arc extinguishing system and the second arc extinguishing system that is provided with in both sides of circuit breaker base, the volume of first arc extinguishing chamber is greater than the volume of second arc extinguishing chamber.
The utility model further provides a first arc extinguishing system which is positioned between the base and the L-level shell and comprises a first arc extinguishing cover and a first arc extinguishing piece arranged in the first arc extinguishing cover, wherein the first arc extinguishing cover is formed by connecting a first side plate, a second side plate and a third side plate, the first side plate and the second side plate are arranged in parallel, the third side plate is positioned at one end of the first side plate and one end of the second side plate, an air generating hole is formed in the third side plate, and 9-11 pieces of the first arc extinguishing piece are arranged.
The utility model further provides that the second arc extinguishing system is positioned between the base and the N-stage shell, the second arc extinguishing system comprises a second arc extinguishing cover and a second arc extinguishing piece arranged in the second arc extinguishing cover, the second arc extinguishing cover is formed by connecting a fourth side plate, a fifth side plate and a sixth side plate, the fourth side plate and the fifth side plate are arranged in parallel, and the sixth side plate is positioned at one end of the fourth side plate and one end of the fifth side plate. The sixth side plate is provided with air generating holes, and the number of the second arc extinguishing sheets is 14.
The utility model is further provided with a first air outlet hole arranged between the base and the L-stage shell, a second air outlet hole formed between the base and the N-stage shell, wherein the first air outlet hole is positioned at one side close to the third side plate, and the second air outlet hole is positioned at one side close to the sixth side plate.
The utility model further provides that the volume of the first arc chute is greater than the volume of the second arc chute.
The utility model has the beneficial effects that: an arc extinguishing system is respectively adopted in the N level and the L level in the residual current circuit breaker, so that the breaking capacity and the arc extinguishing effect are improved; the size of the N-level arc extinguishing system is smaller than that of the L-level arc extinguishing system, so that the miniaturization of the whole structure is realized while the arc extinguishing effect is ensured.
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 the embodiment of the utility model with the L-level housing removed.
Fig. 2 is a schematic structural diagram of the embodiment of the utility model, in which the N-stage shell is removed.
Fig. 3 is a schematic diagram of a first arc extinguishing system according to an embodiment of the utility model.
Fig. 4 is a schematic diagram of a second arc extinguishing system according to an embodiment of the utility model.
Reference numeral, 10, a circuit breaker base; 20. an N-stage shell; 30. an L-stage shell; 40. a first arc extinguishing system; 401. a first arc extinguishing plate; 402. a first arc chute; 4021. a first side plate; 4022. a second side plate; 4023. a third side plate; 50. a second arc extinguishing system; 501. a second arc extinguishing plate; 502. a second arc chute; 5021. a fourth side plate; 5022. a fifth side plate; 5023. a sixth side plate; 60. producing pores; 70. a first air outlet hole; 80. a second air outlet;
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 to 4, the present invention is an arc extinguishing system for a residual current circuit breaker, wherein a first arc extinguishing system 40 and a second arc extinguishing system 50 are fixedly disposed on both sides of a circuit breaker base 10, and a volume of the first arc extinguishing chamber 402 is larger than a volume of the second arc extinguishing chamber 502.
The first arc extinguishing system 40 is located between the base and the N-stage shell 20, the first arc extinguishing system 40 comprises a first arc extinguishing chamber 402 and a first arc extinguishing piece 401 arranged in the first arc extinguishing chamber 402, the first arc extinguishing chamber 402 is formed by connecting a first side plate 4021, a second side plate 4022 and a third side plate 4023, the first side plate 4021 and the second side plate 4022 are arranged in parallel, the third side plate 4023 is located at one end of the first side plate 4021 and one end of the second side plate 4022, an air generating hole 60 is arranged on the third side plate 4023, and the first arc extinguishing piece 401 is provided with 9-11 pieces.
The second arc extinguishing system 50 is located between the base and the L-stage housing 30, the second arc extinguishing system 50 includes a second arc extinguishing chamber 502 and a second arc extinguishing piece 501 disposed in the second arc extinguishing chamber 502, the second arc extinguishing chamber 502 is formed by connecting a fourth side plate 5021, a fifth side plate 5022 and a sixth side plate 5023, the fourth side plate 5021 is parallel to the fifth side plate 5022, and the sixth side plate 5023 is located at one end of the fourth side plate 5021 and the fifth side plate 5022. The sixth side plate 5023 is provided with an air generating hole 60, and the number of the second arc extinguishing pieces 501 is 14.
A first air outlet 70 is formed between the base and the L-stage housing 30, a second air outlet 80 is formed between the base and the N-stage housing 20, the first air outlet 70 is located on one side close to the third side plate 4023, and the second air outlet 80 is located on one side close to the sixth side plate 5023.
According to the utility model, the N-level and the L-level in the leakage circuit breaker respectively adopt the arc extinguishing systems, so that the breaking capacity is improved; the size of the N-level arc extinguishing system is smaller than that of the L-level arc extinguishing system, so that the miniaturization of the whole structure is realized while the arc extinguishing effect is ensured.
Certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification 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.
More uses such as 10, circuit breaker bases; 20. an N-stage shell; 30. an L-stage shell; 40. a first arc extinguishing system; 401. a first arc extinguishing plate; 402. a first arc chute; 4021. a first side plate; 4022. a second side plate; 4023. a third side plate; 50. a second arc extinguishing system; 501. a second arc extinguishing plate; 502. a second arc chute; 5021. a fourth side plate; 5022. a fifth side plate; 5023. a sixth side plate; 60. producing pores; 70. a first air outlet hole; 80. second outlet aperture and the like, 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 phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and 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. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (4)
1. The utility model provides an arc extinguishing system for residual-current circuit breaker, its characterized in that, includes the circuit breaker base, the fixed first arc extinguishing system and the second arc extinguishing system that is provided with in both sides of circuit breaker base, the volume of first arc extinguishing chamber is greater than the volume of second arc extinguishing chamber.
2. The arc extinguishing system for the residual-current circuit breaker according to claim 1, wherein the first arc extinguishing system is located between the base and the N-class shell, the first arc extinguishing system comprises a first arc extinguishing chamber and a first arc extinguishing piece arranged in the first arc extinguishing chamber, the first arc extinguishing chamber is formed by connecting a first side plate, a second side plate and a third side plate, the first side plate and the second side plate are arranged in parallel, the third side plate is located at one end of the first side plate and the second side plate, an air generating hole is arranged on the third side plate, and 9-11 pieces of the first arc extinguishing piece are arranged.
3. The arc extinguishing system for a residual-current circuit breaker according to claim 2, wherein the second arc extinguishing system is located between the base and the L-class housing, and the second arc extinguishing system comprises a second arc extinguishing chamber, and a second arc extinguishing plate disposed in the second arc extinguishing chamber, wherein the second arc extinguishing chamber is formed by connecting a fourth side plate, a fifth side plate, and a sixth side plate, the fourth side plate is disposed in parallel with the fifth side plate, and the sixth side plate is located at one end of the fourth side plate and the fifth side plate. The sixth side plate is provided with air generating holes, and the number of the second arc extinguishing sheets is 14.
4. The arc extinguishing system for a residual-current circuit breaker according to claim 3, wherein a first air outlet is provided between the base and the L-stage case, and a second air outlet is provided between the base and the N-stage case, the first air outlet being located at a side close to the third side plate, and the second air outlet being located at a side close to the sixth side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121977825.0U CN215731556U (en) | 2021-08-23 | 2021-08-23 | Arc extinguishing system for residual current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121977825.0U CN215731556U (en) | 2021-08-23 | 2021-08-23 | Arc extinguishing system for residual current circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215731556U true CN215731556U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121977825.0U Active CN215731556U (en) | 2021-08-23 | 2021-08-23 | Arc extinguishing system for residual current circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215731556U (en) |
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2021
- 2021-08-23 CN CN202121977825.0U patent/CN215731556U/en active Active
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