CN215771042U - Arc extinguish chamber of circuit breaker - Google Patents
Arc extinguish chamber of circuit breaker Download PDFInfo
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- CN215771042U CN215771042U CN202120990509.0U CN202120990509U CN215771042U CN 215771042 U CN215771042 U CN 215771042U CN 202120990509 U CN202120990509 U CN 202120990509U CN 215771042 U CN215771042 U CN 215771042U
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Abstract
The utility model discloses an arc extinguish chamber of a circuit breaker, which comprises a plurality of arc extinguish grid pieces, a supporting plate assembly and an arc extinguish cover plate, wherein the supporting plate assembly comprises a first supporting plate and a second supporting plate which are symmetrically arranged; the arc extinguishing bars piece is fixed to be set up between first backup pad and second backup pad, and the top of backup pad subassembly includes the cavity, the arc extinguishing apron includes first flash barrier, second flash barrier and third flash barrier three flash barrier altogether, second and third flash barrier pile up in the cavity, the upper surface of second flash barrier and the upper surface of backup pad subassembly are located the coplanar. The gas in the utility model can directly overflow to the outside of the circuit breaker through the zigzag exhaust channel, and the charged metal particles can be blocked by the inclined channel wall and cannot overflow, thus realizing effective arc extinction.
Description
Technical Field
The utility model relates to the field of low-voltage electrical apparatus component equipment, in particular to an arc extinguish chamber of a circuit breaker.
Background
In an arc extinguish chamber system of a universal circuit breaker in the low-voltage electrical appliance industry at present, an arc extinguish chamber cover generally adopts staggered linear channels and mesh covers, a large amount of gas cannot be discharged in time, explosion and equipment accidents are easily caused, and personal safety is endangered. Or the metal particles fly out of the circuit breaker along with the gas, the arc extinguishing function cannot be effectively realized, zero arcing cannot be realized, and the test fails. The metal shaft of blocking the flash barrier that is furnished with in the explosion chamber easily conducts with the electric arc and burns out, causes structural damage, can't maintain the function.
The utility model aims to design a breaker arc extinguish chamber, which comprises an exhaust channel in a smooth X shape so as to realize smooth outflow of gas, and effectively block metal particles and electric arcs.
Disclosure of Invention
In order to solve the above problems, the present invention provides an arc extinguish chamber of a circuit breaker, which includes a plurality of arc extinguish grid pieces 3, a support plate assembly 2 and an arc extinguish cover plate 1, wherein the support plate assembly 2 includes a first support plate 21 and a second support plate 22 which are symmetrically arranged; arc extinguishing bars piece 3 is fixed to be set up between first backup pad 21 and second backup pad 22, and the top of backup pad subassembly 2 includes cavity 23, arc extinguishing apron 1 includes first flash barrier 11, second flash barrier 12 and third flash barrier 13 three flash barrier altogether, second flash barrier 12 and third flash barrier 13 are piled up in the cavity 23, the upper surface of second flash barrier 12 and the upper surface of backup pad subassembly 2 are located the coplanar.
Furthermore, the first arc isolating plate 11, the second arc isolating plate 12 and the third arc isolating plate 13 are provided with a plurality of groups of penetrating exhaust channels, and the whole exhaust channels are in an X shape; the first exhaust channel on the first flash barrier 11 is in the vertical direction.
Further, the first flash barrier 11 is fixedly arranged on the top of the supporting plate assembly 2 and completely covers the cavity 23.
Furthermore, the second flash barrier 12 is provided with a plurality of groups of penetrating second exhaust channels, the third flash barrier 13 is provided with a plurality of groups of penetrating third exhaust channels, and the second exhaust channels of the second flash barrier 12 and the third exhaust channels of the third flash barrier 13 are both in a V shape; the second exhaust passage comprises a first branch passage and a second branch passage, and the lower ends of the first branch passage and the second branch passage are closely adjacent but not communicated; the lower ends of the first and second branch channels of the second exhaust channel are respectively and correspondingly communicated with the upper ends of the third and fourth branch channels of the third exhaust channel; the lower end of the third exhaust channel is communicated with the upper end of the air channel between the arc extinguishing grid plates 3.
Furthermore, the second flash barrier 12 is provided with a plurality of groups of fourth exhaust channels, the third flash barrier 13 is provided with a plurality of groups of third exhaust channels which penetrate through the second flash barrier, the third exhaust channels and the fourth exhaust channels are V-shaped, and after the second flash barrier 12 and the third flash barrier 13 are stacked, the fourth exhaust channels and the third exhaust channels are combined into an X shape; the fourth exhaust channel comprises a fifth branch channel and a sixth branch channel, and the lower ends of the fifth branch channel and the sixth branch channel are closely adjacent and communicated; the lower ends of the fifth and sixth branch channels of the fourth exhaust channel are respectively and correspondingly communicated with the upper ends of the third and fourth branch channels of the third exhaust channel; the lower end of the third exhaust channel is communicated with the upper end of the air channel between the arc extinguishing grid plates 3.
Furthermore, the second flash barrier 12 is provided with a plurality of groups of penetrating second exhaust channels, the third flash barrier 13 is provided with a plurality of groups of fifth exhaust channels, the second exhaust channels and the fifth exhaust channels are both V-shaped, and after the second flash barrier 12 and the third flash barrier 13 are stacked, the second exhaust channels and the fifth exhaust channels are combined into an X-shape; the fifth exhaust passage comprises a seventh branch passage and an eighth branch passage, and the upper ends of the seventh branch passage and the eighth branch passage are closely adjacent and communicated; the lower ends of the first branch channel and the second branch channel of the second exhaust channel are respectively and correspondingly communicated with the upper ends of the seventh branch channel and the eighth branch channel of the fifth exhaust channel; the lower end of the fifth exhaust channel is correspondingly communicated with the upper end of the air channel between the arc extinguishing grid plates 3.
Furthermore, the second flash barrier 12 is provided with a plurality of groups of fourth exhaust channels, the third flash barrier 13 is provided with a plurality of groups of fifth exhaust channels, the fourth exhaust channels and the fifth exhaust channels are both V-shaped, and after the second flash barrier 12 and the third flash barrier 13 are stacked, the fourth exhaust channels and the fifth exhaust channels are combined into an X-shape; the fourth exhaust channel comprises a fifth branch channel and a sixth branch channel, and the lower ends of the fifth branch channel and the sixth branch channel are closely adjacent and communicated; the fifth exhaust passage comprises a seventh branch passage and an eighth branch passage, and the upper ends of the seventh branch passage and the eighth branch passage are closely adjacent and communicated; the lower ends of the fifth and sixth branch channels of the fourth exhaust channel are respectively and correspondingly communicated with the upper ends of the seventh and eighth branch channels of the fifth exhaust channel; the lower end of the fifth exhaust channel is correspondingly communicated with the upper end of the air channel between the arc extinguishing grid plates 3.
Compared with the prior art, the utility model has the following beneficial effects:
(1) gas can directly overflow to the outside of the circuit breaker through the tortuous exhaust passage, and charged metal particles can be blocked by the inclined passage wall and cannot overflow, so that effective arc extinction is realized.
(2) Simple structure saves part quantity, removes the metal axle of separating upper and lower flash barrier from.
Drawings
Fig. 1 is an exploded view of a first embodiment of the present invention.
Fig. 2 is a cross-sectional view of a first embodiment of the present invention.
Fig. 3 is a cross-sectional view of an arc extinguishing cover plate according to a second embodiment of the utility model.
Fig. 4 is a cross-sectional view of an arc extinguishing cover plate according to a third embodiment of the present invention.
Fig. 5 is a cross-sectional view of an arc extinguishing cover plate according to a fourth embodiment of the present invention.
The symbols in the figures represent the meanings:
the arc extinguishing cover plate 1, the first arc isolating plate 11, the second arc isolating plate 12, the third arc isolating plate 13, the supporting plate assembly 2, the first supporting plate 21, the second supporting plate 22, the concave cavity 23 and the arc extinguishing grid piece 3.
Detailed Description
The utility model provides an arc extinguish chamber of a circuit breaker.
Example 1
As shown in fig. 1 and 2, the arc extinguishing chamber of the circuit breaker includes a plurality of arc chute plates 3, a supporting plate assembly 2 and an arc extinguishing cover plate 1, wherein the supporting plate assembly 2 includes two L-shaped first supporting plates 21 and two second supporting plates 22 which are symmetrically arranged; arc extinguishing bars piece 3 is fixed to be set up between first backup pad 21 and second backup pad 22, and the top of backup pad subassembly 2 is including the cavity 23 that is the cuboid, arc extinguishing apron 1 includes first flash barrier 11, second flash barrier 12 and third flash barrier 13 three flash barrier altogether, second flash barrier 12 and third flash barrier 13 pile up in the cavity 23, the upper surface of second flash barrier 12 and the upper surface of backup pad subassembly 2 are located the coplanar. The first flash barrier 11 is fixedly arranged on the top of the supporting plate assembly 2 and completely covers the cavity 23. The arc extinguishing cover plate 1 is positioned above the arc extinguishing chamber assembly and mainly used for releasing gas and blocking metal ions. The second flash barrier 12 and the third flash barrier 13 can adopt plastic parts with flame retardancy, and the two flash barriers can adopt the same part, so that the number of parts is reduced. First flash barrier 11 can select for working of plastics or sheet metal component.
The second exhaust passage includes a first sub-passage and a second sub-passage, and lower ends of the first sub-passage and the second sub-passage are closely adjacent but not communicated with each other.
The lower ends of the first branch channel and the second branch channel of the second exhaust channel are respectively and correspondingly communicated with the upper ends of the third branch channel and the fourth branch channel of the third exhaust channel.
The lower end of the third exhaust channel is communicated with the upper end of the air channel between the arc extinguishing grid plates 3 and is used for receiving the gas with the metal particles exhausted from the air channel. And the gas sequentially enters the second exhaust channel and the first exhaust channel along the third exhaust channel until being discharged from an upper end outlet of the first exhaust channel. The metal particles carried in the gas are blocked by the channel walls at the intersection of the third exhaust channel and the second exhaust channel and the intersection of the second exhaust channel and the first exhaust channel, so that the effect of blocking charged particles while discharging the gas is achieved.
Example 2
As shown in fig. 1 and fig. 3, the present embodiment is substantially the same as embodiment 1, except that the second arc splitter 12 of the present embodiment is provided with a plurality of sets of fourth exhaust channels, the fourth exhaust channels are V-shaped, and after the second arc splitter 12 and the third arc splitter 13 are stacked, the fourth exhaust channels and the third exhaust channels are combined into an X-shape.
The fourth exhaust passage comprises a fifth branch passage and a sixth branch passage, and the lower ends of the fifth branch passage and the sixth branch passage are closely adjacent and communicated.
And the lower ends of the fifth and sixth branch channels of the fourth exhaust channel are respectively and correspondingly communicated with the upper ends of the third and fourth branch channels of the third exhaust channel.
The lower end of the third exhaust channel is communicated with the upper end of the air channel between the arc extinguishing grid plates 3 and is used for receiving the gas with the metal particles exhausted from the air channel. And the gas enters the fourth exhaust channel and the first exhaust channel along the third exhaust channel in sequence until being discharged from an upper end outlet of the first exhaust channel. The metal particles carried in the gas are blocked by the channel walls at the intersection of the third exhaust channel and the fourth exhaust channel and the intersection of the fourth exhaust channel and the first exhaust channel, so that the effect of blocking charged particles while discharging the gas is achieved.
Example 3
As shown in fig. 1 and 4, the third arc splitter 13 of the present embodiment is substantially the same as embodiment 1, except that the third arc splitter 13 of the present embodiment is provided with a plurality of groups of fifth exhaust channels, the fifth exhaust channels are V-shaped, and after the second arc splitter 12 and the third arc splitter 13 are stacked, the second exhaust channels and the fifth exhaust channels are combined into an X-shape.
The fifth exhaust passage includes a seventh subchannel and an eighth subchannel, and upper ends of the seventh subchannel and the eighth subchannel are closely adjacent and communicate.
The lower ends of the first branch channel and the second branch channel of the second exhaust channel are respectively and correspondingly communicated with the upper ends of the seventh branch channel and the eighth branch channel of the fifth exhaust channel.
The lower end of the fifth exhaust channel is correspondingly communicated with the upper end of the air channel between the arc extinguishing grid plates 3, and is used for receiving the gas with metal particles exhausted from the air channel. And the gas sequentially enters the second exhaust channel and the first exhaust channel along the fifth exhaust channel until being discharged from an upper end outlet of the first exhaust channel. The metal particles carried in the gas are blocked by the channel walls at the intersection of the second exhaust channel and the fifth exhaust channel and the intersection of the second exhaust channel and the first exhaust channel, so that the effect of blocking charged particles while discharging the gas is achieved.
Example 4
As shown in fig. 1 and 5, the present embodiment is obtained by combining embodiments 2 and 3, specifically, the second arc splitter 12 of the present embodiment is provided with a plurality of groups of fourth exhaust channels, the third arc splitter 13 is provided with a plurality of groups of fifth exhaust channels, the fourth exhaust channels and the fifth exhaust channels are both V-shaped, and after the second arc splitter 12 and the third arc splitter 13 are stacked, the fourth exhaust channels and the fifth exhaust channels are combined into an X-shape.
The fourth exhaust passage comprises a fifth branch passage and a sixth branch passage, and the lower ends of the fifth branch passage and the sixth branch passage are closely adjacent and communicated.
The fifth exhaust passage includes a seventh subchannel and an eighth subchannel, and upper ends of the seventh subchannel and the eighth subchannel are closely adjacent and communicate.
And the lower ends of the fifth and sixth branch channels of the fourth exhaust channel are respectively and correspondingly communicated with the upper ends of the seventh and eighth branch channels of the fifth exhaust channel.
The lower end of the fifth exhaust channel is correspondingly communicated with the upper end of the air channel between the arc extinguishing grid plates 3, and is used for receiving the gas with metal particles exhausted from the air channel. And the gas sequentially enters the fourth exhaust channel and the first exhaust channel along the fifth exhaust channel until being discharged from an upper end outlet of the first exhaust channel. The metal particles carried in the gas are blocked by the channel walls at the intersection of the fourth exhaust channel and the fifth exhaust channel and the intersection of the fourth exhaust channel and the first exhaust channel, so that the effect of blocking charged particles while discharging the gas is achieved.
The utility model provides the technical scheme, and has the following beneficial effects:
(1) gas can directly overflow to the outside of the circuit breaker through the tortuous exhaust passage, and charged metal particles can be blocked by the inclined passage wall and cannot overflow, so that effective arc extinction is realized.
(2) Simple structure saves part quantity, removes the metal axle of separating upper and lower flash barrier from.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The arc extinguish chamber of the circuit breaker is characterized by comprising a plurality of arc extinguish grid pieces (3), a supporting plate assembly (2) and an arc extinguish cover plate (1), wherein the supporting plate assembly (2) comprises a first supporting plate (21) and a second supporting plate (22) which are symmetrically arranged; arc extinguishing bars piece (3) are fixed to be set up between first backup pad (21) and second backup pad (22), and the top of backup pad subassembly (2) includes cavity (23), arc extinguishing apron (1) includes first flash barrier (11), second flash barrier (12) and third flash barrier (13) three flash barrier altogether, second flash barrier (12) and third flash barrier (13) are piled up in cavity (23), the upper surface of second flash barrier (12) and the upper surface of backup pad subassembly (2) are located the coplanar.
2. The arc extinguish chamber of the circuit breaker according to claim 1, characterized in that the first, second and third arc-separating plates (11, 12, 13) are provided with a plurality of groups of exhaust passages therethrough, the exhaust passages being entirely X-shaped; the first exhaust channels on the first flash barrier (11) are arranged in the vertical direction.
3. The circuit breaker arc chute according to claim 2, characterized in that the first flash barrier (11) is fixedly arranged on top of the supporting plate assembly (2) and completely covers the cavity (23).
4. The arc chute of a circuit breaker according to claim 2, characterized in that the second flash barrier (12) is provided with a plurality of groups of second exhaust passages therethrough, the third flash barrier (13) is provided with a plurality of groups of third exhaust passages therethrough, the second exhaust passages of the second flash barrier (12) and the third exhaust passages of the third flash barrier (13) are both V-shaped; the second exhaust passage comprises a first branch passage and a second branch passage, and the lower ends of the first branch passage and the second branch passage are closely adjacent but not communicated; the lower ends of the first and second branch channels of the second exhaust channel are respectively and correspondingly communicated with the upper ends of the third and fourth branch channels of the third exhaust channel; the lower end of the third exhaust channel is communicated with the upper end of an air channel between the arc extinguishing grid plates (3).
5. The arc extinguish chamber of the circuit breaker according to claim 2, characterized in that the second arc-isolating plate (12) is provided with a plurality of groups of fourth exhaust channels, the third arc-isolating plate (13) is provided with a plurality of groups of third exhaust channels which penetrate through the arc-isolating plate, the third exhaust channels and the fourth exhaust channels are V-shaped, and after the second arc-isolating plate (12) and the third arc-isolating plate (13) are stacked, the fourth exhaust channels and the third exhaust channels are combined into an X shape; the fourth exhaust channel comprises a fifth branch channel and a sixth branch channel, and the lower ends of the fifth branch channel and the sixth branch channel are closely adjacent and communicated; the lower ends of the fifth and sixth branch channels of the fourth exhaust channel are respectively and correspondingly communicated with the upper ends of the third and fourth branch channels of the third exhaust channel; the lower end of the third exhaust channel is communicated with the upper end of an air channel between the arc extinguishing grid plates (3).
6. The arc extinguish chamber of the circuit breaker according to claim 2, characterized in that the second arc-isolating plate (12) is provided with a plurality of groups of second exhaust passages penetrating through the arc-isolating plate, the third arc-isolating plate (13) is provided with a plurality of groups of fifth exhaust passages, the second exhaust passages and the fifth exhaust passages are both V-shaped, and after the second arc-isolating plate (12) and the third arc-isolating plate (13) are stacked, the second exhaust passages and the fifth exhaust passages are combined into an X shape; the fifth exhaust passage comprises a seventh branch passage and an eighth branch passage, and the upper ends of the seventh branch passage and the eighth branch passage are closely adjacent and communicated; the lower ends of the first branch channel and the second branch channel of the second exhaust channel are respectively and correspondingly communicated with the upper ends of the seventh branch channel and the eighth branch channel of the fifth exhaust channel; the lower end of the fifth exhaust channel is correspondingly communicated with the upper end of an air channel between the arc extinguishing grid plates (3).
7. The arc extinguish chamber of the circuit breaker according to claim 2, characterized in that the second arc-isolating plate (12) is provided with a plurality of groups of fourth exhaust channels, the third arc-isolating plate (13) is provided with a plurality of groups of fifth exhaust channels, the fourth exhaust channels and the fifth exhaust channels are both V-shaped, and after the second arc-isolating plate (12) and the third arc-isolating plate (13) are stacked, the fourth exhaust channels and the fifth exhaust channels are combined into an X shape; the fourth exhaust channel comprises a fifth branch channel and a sixth branch channel, and the lower ends of the fifth branch channel and the sixth branch channel are closely adjacent and communicated; the fifth exhaust passage comprises a seventh branch passage and an eighth branch passage, and the upper ends of the seventh branch passage and the eighth branch passage are closely adjacent and communicated; the lower ends of the fifth and sixth branch channels of the fourth exhaust channel are respectively and correspondingly communicated with the upper ends of the seventh and eighth branch channels of the fifth exhaust channel; the lower end of the fifth exhaust channel is correspondingly communicated with the upper end of an air channel between the arc extinguishing grid plates (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120990509.0U CN215771042U (en) | 2021-05-10 | 2021-05-10 | Arc extinguish chamber of circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120990509.0U CN215771042U (en) | 2021-05-10 | 2021-05-10 | Arc extinguish chamber of circuit breaker |
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| CN215771042U true CN215771042U (en) | 2022-02-08 |
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| CN202120990509.0U Active CN215771042U (en) | 2021-05-10 | 2021-05-10 | Arc extinguish chamber of circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117727595A (en) * | 2024-02-07 | 2024-03-19 | 温州华嘉电器有限公司 | Arc extinguishing chamber of circuit breaker |
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2021
- 2021-05-10 CN CN202120990509.0U patent/CN215771042U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117727595A (en) * | 2024-02-07 | 2024-03-19 | 温州华嘉电器有限公司 | Arc extinguishing chamber of circuit breaker |
| CN117727595B (en) * | 2024-02-07 | 2024-04-26 | 温州华嘉电器有限公司 | Arc extinguishing chamber of circuit breaker |
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