CN217114293U - L-pole arc extinguishing exhaust structure of circuit breaker - Google Patents
L-pole arc extinguishing exhaust structure of circuit breaker Download PDFInfo
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- CN217114293U CN217114293U CN202220836321.5U CN202220836321U CN217114293U CN 217114293 U CN217114293 U CN 217114293U CN 202220836321 U CN202220836321 U CN 202220836321U CN 217114293 U CN217114293 U CN 217114293U
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- circuit breaker
- arc extinguishing
- middle cover
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- 238000010891 electric arc Methods 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000000670 limiting effect Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
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Abstract
The utility model discloses a L utmost point arc extinguishing exhaust structure of circuit breaker, include: the middle cover and the arc extinguishing assembly; the arc extinguishing component is arranged in an arc extinguishing chamber formed by the middle cover; the middle cover is provided with a first arc outlet air outlet, a second arc outlet air outlet and a third arc outlet air outlet which are used for discharging the isolated electric arc; the first arc outlet air outlet, the second arc outlet air outlet and the third arc outlet air outlet are communicated to the outside of the middle cover; the position of the first arc outlet corresponds to the upper end of the arc extinguish chamber; the positions of the second arc outlet and the third arc outlet correspond to the lower end of the arc extinguish chamber; an arc striking plate arranged in the middle cover leads the electric arc into the lower end of the arc extinguishing chamber and enters the arc extinguishing component. Has the following beneficial effects: the first arc exhaust port, the second arc exhaust port and the third arc exhaust port are adopted to simultaneously perform arc exhaust, so that the exhaust and arc discharge are smoother.
Description
Technical Field
The utility model relates to a technical field of circuit breaker, concretely relates to L utmost point arc extinguishing exhaust structure of circuit breaker.
Background
The DPN miniature circuit breaker on the market at present is basically a product for breaking 3000A current, and can actually break less current exceeding 4500A. When customers need the breaking index of 6000A or even 10000A, the current products on the market can not reach the breaking index. The biggest problem of high breaking of the DPN miniature circuit breaker is that the L-pole arc extinguishing assembly is easy to cause short circuit between grids during testing, so that the product is short-circuited, and the test cannot be completed. The existing circuit breaker arc discharge design adopts an arc discharge exhaust port, and a track of the arc discharge exhaust port is also provided with a plurality of obstacles, so that the circuit breaker is unsmooth in exhaust, and short circuit is caused.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
An arc outlet is adopted for the existing arc outlet design of the circuit breaker, and a track of the arc outlet is further provided with a plurality of obstacles, so that the circuit breaker is unsmooth in exhaust, and short circuit is caused. The application provides an L pole arc extinguishing exhaust structure of circuit breaker.
2. Technical scheme
In order to solve the above problem, the utility model provides a technical scheme does:
an L-pole arc extinguishing exhaust structure of a circuit breaker, comprising: the middle cover and the arc extinguishing assembly; the arc extinguishing component is arranged in an arc extinguishing chamber formed by the middle cover; the middle cover is provided with a first arc outlet air outlet, a second arc outlet air outlet and a third arc outlet air outlet which are used for discharging the isolated electric arc; the first arc outlet air outlet, the second arc outlet air outlet and the third arc outlet air outlet are communicated to the outside of the middle cover; the position of the first arc outlet corresponds to the upper end of the arc extinguish chamber; the positions of the second arc outlet and the third arc outlet correspond to the lower end of the arc extinguish chamber; an arc striking plate arranged in the middle cover leads the electric arc into the lower end of the arc extinguishing chamber and enters the arc extinguishing component.
Further, the middle cover is formed with a divided arc boss for dividing the arc discharged from the arc extinguishing chamber.
Further, a split arc boss is located between the second and third arc outlet.
Furthermore, the arc division boss is provided with a blocking part and a division part for buffering the arc; the blocking part is obliquely arranged on the dividing part.
Further, the range of the included angle between the blocking portion and the dividing portion is not less than 25 ° and not more than 45 °.
Further, the dividing portion divides the opening formed by the middle cover into a second arc exhaust port and a third arc exhaust port.
Further, the opening areas of the first arc outlet, the second arc outlet and the third arc outlet are equal.
Further, the middle cover is also provided with a limiting boss used for limiting the installation position of the arc extinguishing assembly.
Further, the arc extinguishing assembly includes: installing a shell and a plurality of grids; a plurality of grids are mounted to the mounting housing.
Furthermore, an exhaust port for exhausting the blocked electric arc is formed between two adjacent grid sheets; the air outlet is communicated with a through groove formed by arranging a plurality of grid pieces and used for electric arcs to pass through, a first arc outlet air outlet, a second arc outlet air outlet and a third arc outlet air outlet.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
the L utmost point arc extinguishing exhaust structure of circuit breaker that this application embodiment provided carries out the arc exhaust simultaneously through having adopted first arc gas vent, second arc gas vent and third arc gas vent, and simultaneously, does not set up the obstacle on the play arc runway of these three arc gas vents, makes the exhaust row arc unobstructed, improves arc efficiency. In addition, the position of first play arc gas vent corresponds the upper end of explosion chamber, and the position of second play arc gas vent and third play arc gas vent corresponds the lower extreme of explosion chamber, adapts to the movement track of electric arc like this, carries out the arc from the top down, and it is better to go out the arc effect.
Drawings
Fig. 1 is a schematic structural diagram of an L-pole arc extinguishing and exhausting structure of a circuit breaker according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an arc extinguishing assembly of an L-pole arc extinguishing vent structure of the circuit breaker of fig. 1;
the circuit breaker comprises an L-pole arc extinguishing exhaust structure 10, a middle cover 11, a first arc outlet exhaust port 111, a second arc outlet exhaust port 112, a third arc outlet exhaust port 113, a split arc boss 114, a blocking portion 115, a split portion 116, a limiting boss 117, an arc extinguishing chamber 118, an arc extinguishing assembly 12, a mounting shell 121, a grid piece 122 and an exhaust port 123.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.
Example 1
As shown in fig. 1 to fig. 2, for the utility model discloses a circuit breaker's L utmost point arc extinguishing exhaust structure 10, include: the arc extinguishing assembly 12 is installed in an arc extinguishing chamber 118 formed by the middle cover 11 to divide an incoming arc. The middle cover 11 is formed with a first arc exhaust port 111, a second arc exhaust port 112, and a third arc exhaust port 113. First arc exhaust port 111, second arc exhaust port 112 and third arc exhaust port 113 all communicate to the outside of well lid 11 to can discharge the electric arc that is cut off simultaneously, it is more efficient to discharge the arc, and then can effectively avoid the arc to block. The first arc outlet 111 corresponds to the upper end of the arc extinguishing chamber 118, the second arc outlet 112 and the third arc outlet 113 correspond to the lower end of the arc extinguishing chamber 118, and an arc striking plate arranged in the middle cover 11 guides the electric arc to the lower end of the arc extinguishing chamber 118 and enters the arc extinguishing assembly 12. The arc discharging device can adapt to the movement track of the electric arc under the influence of gravity, and the arc discharging device can discharge the arc from top to bottom and has a better arc discharging effect.
The L-pole arc extinguishing exhaust structure 10 of the circuit breaker performs arc exhaust simultaneously by adopting the first arc exhaust port 111, the second arc exhaust port 112 and the third arc exhaust port 113, and meanwhile, no obstacle is arranged on the arc exhaust track of the three arc exhaust ports 123, so that the exhaust and the arc exhaust are smooth, and the arc exhaust efficiency is improved. In addition, the position of the first arc outlet 111 corresponds to the upper end of the arc extinguishing chamber 118, and the positions of the second arc outlet 112 and the third arc outlet 113 correspond to the lower end of the arc extinguishing chamber 118, so that the arc extinguishing chamber adapts to the motion track of the arc, the arc is discharged from top to bottom, and the arc outlet effect is better.
In a specific embodiment, the middle cap 11 is formed with a divided arc boss 114. The divided arc boss 114 serves to divide the arc discharged from the arc extinguishing chamber 118, thereby improving safety when the arc is discharged.
Further, the arc-dividing projection 114 is located between the second arc-outlet exhaust port 112 and the third arc-outlet exhaust port 113, so that the divided arc can be effectively guided to the second arc-outlet exhaust port 112 and the third arc-outlet exhaust port 113, and the arc-discharging efficiency is higher.
In a specific embodiment, the arc segment boss 114 is formed with a stopper 115 and a segment 116. The shield 115 serves to buffer the arc. The blocking part 115 is obliquely arranged on the dividing part 116, so that the arc moving to the blocking part is buffered and divided, the arc is prevented from rushing out to the outside, and the use safety of the circuit breaker is further ensured.
In a preferred embodiment, the angle between the stopper 115 and the dividing portion 116 is in a range of 25 ° or more and 45 ° or less. The arrangement can ensure that the electric arc can be effectively divided after the electric arc is effectively buffered.
Specifically, the dividing portion 116 divides the opening formed by the middle cover 11 into the second arc exhaust port 112 and the third arc exhaust port 113, and the structure is more simplified and reliable.
As a specific embodiment, the opening areas of the first arc outlet 111, the second arc outlet 112, and the third arc outlet 113 are equal, so that the uniformity of arc discharge is improved and the safety is higher.
In one embodiment, the middle cap 11 is further formed with a limit boss 117. The limit boss 117 serves to define the installation position of the arc extinguishing assembly 12.
As a specific embodiment, the arc extinguishing assembly 12 includes: a housing 121 and a plurality of grill pieces 122 are installed. The plurality of louvers 122 are mounted to the mounting case 121. An exhaust port 123 is formed between two adjacent grids 122. The exhaust port 123 functions to exhaust the blocked arc so that the arc can move toward the first arc exhaust port 111, the second arc exhaust port 112, and the third arc exhaust port 113. The plurality of grids 122 are arranged to form a through slot for the arc to pass through. The exhaust port 123 communicates to the through-groove and the first arc exhaust port 111, the second arc exhaust port 112, and the third arc exhaust port 113.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art should understand that without departing from the spirit of the present invention, the person skilled in the art should not inventively design the similar structural modes and embodiments to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. An L-pole arc extinguishing exhaust structure of a circuit breaker, comprising: the middle cover and the arc extinguishing assembly; the arc extinguishing assembly is arranged in an arc extinguishing chamber formed by the middle cover; the middle cover is provided with a first arc outlet air outlet, a second arc outlet air outlet and a third arc outlet air outlet which are used for discharging the isolated electric arc; the first arc outlet air outlet, the second arc outlet air outlet and the third arc outlet air outlet are communicated to the outside of the middle cover; the position of the first arc outlet corresponds to the upper end of the arc extinguish chamber; the positions of the second arc outlet and the third arc outlet correspond to the lower end of the arc extinguish chamber; and an arc striking plate arranged in the middle cover introduces electric arc into the lower end of the arc extinguishing chamber and enters the arc extinguishing assembly.
2. The L-pole arc extinguishing exhaust structure of the circuit breaker according to claim 1,
the middle cover is formed with a divided arc boss for dividing the arc discharged from the arc extinguishing chamber.
3. The L-pole arc extinguishing exhaust structure of the circuit breaker according to claim 2,
the split arc boss is located between the second and third arc outlet vents.
4. The L-pole arc extinguishing exhaust structure of the circuit breaker according to claim 3,
the arc dividing lug boss is provided with a blocking part and a dividing part for buffering the arc; the blocking part is obliquely arranged on the dividing part.
5. The L-pole arc extinguishing exhaust structure of the circuit breaker according to claim 4,
the range of an included angle between the blocking part and the dividing part is more than or equal to 25 degrees and less than or equal to 45 degrees.
6. The L-pole arc extinguishing exhaust structure of a circuit breaker according to claim 5,
the dividing portion divides an opening formed by the middle cover into the second arc exhaust port and the third arc exhaust port.
7. The L-pole arc extinguishing exhaust structure of the circuit breaker according to claim 6,
the opening areas of the first arc outlet, the second arc outlet and the third arc outlet are equal.
8. The L-pole arc extinguishing exhaust structure of the circuit breaker according to claim 1,
the middle cover is also provided with a limiting boss used for limiting the installation position of the arc extinguishing assembly.
9. The L-pole arc extinguishing exhaust structure of the circuit breaker according to claim 1,
the arc extinguishing assembly includes: installing a shell and a plurality of grids; the plurality of grid pieces are arranged on the mounting shell.
10. The L-pole arc extinguishing exhaust structure of the circuit breaker according to claim 9,
an exhaust port for exhausting the blocked electric arc is formed between every two adjacent grid sheets; the exhaust port is communicated with a through groove formed by arranging a plurality of grid pieces and used for electric arcs to pass through, the first arc outlet exhaust port, the second arc outlet exhaust port and the third arc outlet exhaust port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220836321.5U CN217114293U (en) | 2022-04-12 | 2022-04-12 | L-pole arc extinguishing exhaust structure of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220836321.5U CN217114293U (en) | 2022-04-12 | 2022-04-12 | L-pole arc extinguishing exhaust structure of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217114293U true CN217114293U (en) | 2022-08-02 |
Family
ID=82579803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220836321.5U Active CN217114293U (en) | 2022-04-12 | 2022-04-12 | L-pole arc extinguishing exhaust structure of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217114293U (en) |
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2022
- 2022-04-12 CN CN202220836321.5U patent/CN217114293U/en active Active
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Address after: 325600 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee after: Zhejiang Chuangqi Electric Co.,Ltd. Address before: 325600 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee before: ZHEJIANG CHUANGQI ELECTRIC Co.,Ltd. |