CN209045474U - A kind of arc-extinguish chamber - Google Patents
A kind of arc-extinguish chamber Download PDFInfo
- Publication number
- CN209045474U CN209045474U CN201822267746.5U CN201822267746U CN209045474U CN 209045474 U CN209045474 U CN 209045474U CN 201822267746 U CN201822267746 U CN 201822267746U CN 209045474 U CN209045474 U CN 209045474U
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- Prior art keywords
- arc
- arc extinguishing
- shell
- grid pieces
- extinguishing grid
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Abstract
The utility model relates to a kind of arc-extinguish chambers, including shell and arc extinguishing grid pieces, arc extinguishing grid pieces front end forms striking mouth, shell includes the back side and the side for being respectively perpendicular connection overleaf two sides, the back side of shell formed it is multiple let out nock, arc extinguishing grid pieces are horizontal inside the shell, arc extinguishing grid pieces two sides and two sides of shell connect, the rear-face contact of arc extinguishing grid pieces rear end and shell, the arc extinguishing grid pieces have 13, and 13 arc extinguishing grid pieces parallel equidistant settings are inside the shell.The quantity of the arc extinguishing grid pieces of the utility model is 13, more short electric arcs can be divided into extinguish by generate electric arc when dynamic and static contact disjunction, the voltage between each short electric arc is smaller, and the heat of generation is small, is not easy to burn arc-extinguish chamber.
Description
Technical field
The utility model relates to a kind of arc-extinguish chambers for miniature circuit breaker, belong to low-voltage electrical field.
Background technique
Arc-extinguish chamber is one of chief component of miniature circuit breaker, with the requirement of present miniature circuit breaker breaking current
It is increasing, it also proposed new requirement to the arc extinction performance of arc-extinguish chamber, but the inner space of miniature circuit breaker is limited, cannot adopt
With excessive arc-extinguish chamber, therefore the arc extinction performance that arc-extinguish chamber how is improved in regulation space is to improve miniature circuit breaker disjunction electricity
Flow one of critical issue.
Current arc-extinguish chamber usually only 9 arc extinguishing grid pieces, electricity of the arc extinguishing grid pieces after subdividing the arc, between arc extinguishing grid pieces
Pressure is still larger, causes the heat between arc extinguishing grid pieces excessive, is easy to burn arc-extinguish chamber.
Summary of the invention
In order to solve the deficiencies in the prior art, it is more that the utility model provides a kind of electric arc segmentation, arc-chute
The smaller arc-extinguish chamber of bar-to-bar voltage.
To achieve the above object, the utility model is a kind of arc-extinguish chamber, including shell and arc extinguishing grid pieces, arc extinguishing grid pieces front end
Form striking mouth, shell includes the back side and the side for being respectively perpendicular connection overleaf two sides, and the back side of shell, which is formed, multiple lets out arc
Mouthful, arc extinguishing grid pieces are horizontal inside the shell, the connection of two sides of arc extinguishing grid pieces two sides and shell, arc extinguishing grid pieces rear end and shell
Rear-face contact, the arc extinguishing grid pieces have 13, and 13 arc extinguishing grid pieces parallel equidistant settings are inside the shell.
The structure that the utility model is further arranged to the arc extinguishing grid pieces is identical, arc extinguishing grid pieces with a thickness of 0.6~
0.7mm, forms arc extinguishing seam between arc extinguishing grid pieces, and the spacing of arc extinguishing seam is 1.2~1.4mm.
It is equal with the spacing that arc extinguishing stitches that the utility model is further arranged to the width for letting out nock, lets out nock and corresponds to and sets
It sets at the rear of arc extinguishing seam, lets out nock and be staggered in two column.
The side that the utility model is further arranged to the shell is covered on the second half section of arc extinguishing grid pieces.
The second half section two sides that the utility model is further arranged to the arc extinguishing grid pieces form connection breach, in connection breach
Tie point is formed, is correspondingly connected on the side of shell and a little forms connecting hole, tie point is pressed in connection in connecting hole.
The side upper/lower terminal that the utility model is further arranged to the shell is respectively formed fixed bayonet.
The utility model has the beneficial effects that the quantity of arc extinguishing grid pieces is 13, electricity can will be generated when dynamic and static contact disjunction
Arc is divided into more short electric arcs to be extinguished, and the voltage between each short electric arc is smaller, and the heat of generation is small, is not easy to burn
Arc-extinguish chamber；What is be staggered lets out nock and can generate lateral air-flow raising when letting out arc and let out arc speed and effect；Shell and arc extinguishing
It is easy to connect between grid, it is easily assembled；Fixed bayonet facilitates arc-extinguish chamber to be mounted in breaker to be fixed.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model specific embodiment.
Fig. 2 is the arc extinguishing grid pieces schematic diagram of the utility model specific embodiment.
Specific embodiment
As shown in Figure 1 and Figure 2, specific embodiment of the utility model is a kind of arc-extinguish chamber, including shell 1 and arc extinguishing grid pieces
2,2 front end of arc extinguishing grid pieces forms striking mouth 21, and shell 1 includes the back side 11 and the side for being respectively perpendicular connection overleaf 11 two sides
12, the back side 11 of shell 1 formed it is multiple let out nock 13, arc extinguishing grid pieces 2 are horizontal in shell 1,2 two sides of arc extinguishing grid pieces and shell 1
The connection of two sides 12,2 rear end of arc extinguishing grid pieces contacts with the back side 11 of shell 1, and arc extinguishing grid pieces 2 have 13, arc extinguishing grid pieces 2
Structure is identical, and 13 2 parallel equidistants of arc extinguishing grid pieces are arranged in shell 1, arc extinguishing grid pieces 2 with a thickness of 0.6~0.7mm, arc extinguishing
Arc extinguishing seam 3 is formed between grid 2, the spacing of arc extinguishing seam 3 is 1.2~1.4mm, lets out the width of nock 13 and the spacing of arc extinguishing seam 3
It is equal, the rear that nock 13 is correspondingly arranged at arc extinguishing seam 3 is let out, nock 13 is let out and is staggered in two column.
The side 12 of shell 1 is covered on the second half section of arc extinguishing grid pieces 2, and the second half section two sides of arc extinguishing grid pieces 2 form connection and lack
Mouth 22, connection breach 22 are interior to form tie point 23, is correspondingly connected on the side 12 of shell 1 and a little 23 forms connecting hole 14, tie point
23, which are pressed in connection, 12 upper/lower terminal of side of shell 1 in connecting hole 14, is respectively formed fixed bayonet 15.
Above-described embodiment is the better embodiment of the utility model, other conspicuous improvements are in the utility model
Protection scope in.
Claims (6)
1. a kind of arc-extinguish chamber, including shell and arc extinguishing grid pieces, arc extinguishing grid pieces front end forms striking mouth, and shell includes the back side and difference
Be vertically connected on the side of back side two sides, the back side of shell formed it is multiple let out nock, arc extinguishing grid pieces are horizontal inside the shell, arc-chute
Piece two sides and two sides of shell connect, the rear-face contact of arc extinguishing grid pieces rear end and shell, it is characterised in that: the arc-chute
Piece has 13, and 13 arc extinguishing grid pieces parallel equidistant settings are inside the shell.
2. arc-extinguish chamber according to claim 1, it is characterised in that: the structure of the arc extinguishing grid pieces is identical, arc extinguishing grid pieces
With a thickness of 0.6~0.7mm, arc extinguishing seam is formed between arc extinguishing grid pieces, the spacing of arc extinguishing seam is 1.2~1.4mm.
3. arc-extinguish chamber according to claim 1 or 2, it is characterised in that: the spacing of the width for letting out nock and arc extinguishing seam
It is equal, the rear that nock is correspondingly arranged at arc extinguishing seam is let out, nock is let out and is staggered in two column.
4. arc-extinguish chamber according to claim 1 or 2, it is characterised in that: the side of the shell is covered on arc extinguishing grid pieces
Second half section.
5. arc-extinguish chamber according to claim 4, it is characterised in that: the second half section two sides of the arc extinguishing grid pieces form connection and lack
Mouthful, tie point is formed in connection breach, is correspondingly connected on the side of shell and is a little formed connecting hole, tie point, which is pressed in connecting hole, to be connected
It connects.
6. arc-extinguish chamber according to claim 4, it is characterised in that: the side upper/lower terminal of the shell is respectively formed solid
Determine bayonet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822267746.5U CN209045474U (en) | 2018-12-29 | 2018-12-29 | A kind of arc-extinguish chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822267746.5U CN209045474U (en) | 2018-12-29 | 2018-12-29 | A kind of arc-extinguish chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209045474U true CN209045474U (en) | 2019-06-28 |
Family
ID=67045088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822267746.5U Active CN209045474U (en) | 2018-12-29 | 2018-12-29 | A kind of arc-extinguish chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209045474U (en) |
-
2018
- 2018-12-29 CN CN201822267746.5U patent/CN209045474U/en active Active
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