CN220041646U - Arc extinguishing chamber structure of low-voltage circuit breaker - Google Patents
Arc extinguishing chamber structure of low-voltage circuit breaker Download PDFInfo
- Publication number
- CN220041646U CN220041646U CN202320743387.4U CN202320743387U CN220041646U CN 220041646 U CN220041646 U CN 220041646U CN 202320743387 U CN202320743387 U CN 202320743387U CN 220041646 U CN220041646 U CN 220041646U
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- arc
- striking
- circuit breaker
- voltage circuit
- side wall
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- 238000004880 explosion Methods 0.000 claims description 3
- 230000008094 contradictory effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses an arc extinguish chamber structure of a low-voltage circuit breaker, which comprises a shell, wherein an arc extinguish chamber is formed in the shell, arc extinguish gate sheets are arranged in the arc extinguish chamber at intervals, the arc extinguish chamber comprises a first side wall and a second side wall, a first arc striking opening is formed in the first side wall, a fixed contact and an arc striking sheet are arranged in the shell corresponding to the first arc striking opening, the arc striking sheet is connected with the fixed contact, the arc striking sheet extends into the arc extinguish chamber through the first arc striking opening, a magnetic yoke is arranged on the second side wall, a second arc striking opening is arranged on the second side wall, a traction sheet extends towards the second arc striking opening, and the traction sheet is shielded on the second arc striking opening. The device has the advantages of simple structure, better arc striking and extinguishing, improved arc extinguishing efficiency and good use effect.
Description
Technical Field
The utility model relates to an arc extinguish chamber structure of a low-voltage circuit breaker.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The circuit breaker is classified into a high voltage circuit breaker and a low voltage circuit breaker according to its use range. The low-voltage circuit breaker generally comprises a plurality of unit components such as an operating mechanism, a tripping mechanism, an arc extinguish chamber and the like, the arc extinguish chamber of the current circuit breaker is generally arranged around or close to a contact of a switch and used for limiting the space position of an arc and accelerating an arc extinguishing device, the current arc extinguish chamber is mainly connected with the contact and extends into an arc striking sheet in the arc extinguish chamber to strike an arc, but the arc striking efficiency of the arc striking structure is low, so that the arc extinguishing effect of an arc extinguishing grid sheet is poor, and the using effect of the integral structure is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides an arc extinguish chamber structure of a low-voltage circuit breaker, which has simple structure, can better perform arc striking and extinguishing, improves the arc extinguishing efficiency and has good use effect.
In order to achieve the above purpose, the utility model provides an arc extinguishing chamber structure of a low-voltage circuit breaker, which comprises a shell, wherein an arc extinguishing chamber is formed in the shell, arc extinguishing grid plates are arranged in the arc extinguishing chamber at intervals, the arc extinguishing chamber comprises a first side wall and a second side wall, a first arc striking opening is formed in the first side wall, a fixed contact and an arc striking sheet are arranged in the shell corresponding to the first arc striking opening, the arc striking sheet is connected with the fixed contact, the arc striking sheet extends into the arc extinguishing chamber through the first arc striking opening, a magnetic yoke is arranged on the second side wall, a second arc striking opening is arranged on the second side wall, a traction sheet extends towards the second arc striking opening, and the traction sheet is shielded on the second arc striking opening.
The beneficial effect that sets up like this is, adopt above-mentioned scheme, through seting up the second striking mouth, and form the pulling-on piece with the yoke extension, and shield the second striking mouth, the shielding of here can be partly shielding also can be completely shielding, thereby when taking place emergency, can introduce the arc extinguishing chamber by the second striking mouth through the pulling-on piece with electric arc, carry out more abundant arc extinction, make overall structure's use more safe and reliable, simple structure simultaneously, have good result of use.
As a further arrangement of the utility model, the pulling-on piece is formed with side plates on both sides.
The beneficial effect of setting like this is, adopts above-mentioned scheme, is used for the area of striking the arc through the further increase of curb plate, guarantees that electric arc gets into the arc extinguishing chamber, improves arc extinguishing efficiency.
As a further arrangement of the utility model, the shell is provided with a supporting bulge corresponding to the side plate, and the side plate is arranged on the supporting bulge in a collision manner.
The beneficial effects that set up like this are, adopt above-mentioned scheme, further improve the stability of yoke structure installation, provide the support for the traction plate, avoid the unbalance of yoke overall structure, guarantee holistic result of use, simple structure does benefit to the realization simultaneously.
As a further arrangement of the utility model, the supporting protrusion extends towards the second side wall and is connected with the second side wall, and the magnetic yoke is arranged on the supporting protrusion in a collision manner.
The beneficial effect that sets up like this is, adopts above-mentioned scheme, is convenient for fix a position the installation to the yoke, improves the installation convenience, and simple structure does benefit to the realization simultaneously.
As a further arrangement of the utility model, the two sides of the magnetic yoke are respectively provided with a baffle wall, and the position corresponding to the baffle wall in the shell is provided with a positioning wall for abutting against the edge of the baffle wall.
The beneficial effect of setting like this is, adopts above-mentioned scheme, sets up like this and further improves yoke mounted position's stability, improves the convenience of installation.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;
fig. 2 is a schematic diagram of a yoke structure according to an embodiment of the utility model.
Detailed Description
An embodiment of an arc chute structure of a low voltage circuit breaker according to the present utility model is shown in fig. 1 to 2: including casing 1, be formed with arc extinguishing chamber 11 in the casing 1, be provided with arc extinguishing bars piece in the middle of the arc extinguishing chamber 11, the explosion chamber includes first lateral wall and second lateral wall, first striking mouth has been seted up on the first lateral wall, correspond first striking mouth position in the casing 1 and be provided with static contact and striking piece 3, striking piece 3 is connected with the static contact, striking piece 3 extends in to arc extinguishing chamber 11 through first striking mouth, be provided with yoke 2 on the second lateral wall, be provided with the second striking mouth on the second lateral wall, yoke 2 extends to the second striking mouth and has pulling piece 21, pulling piece 21 shelters from on the second striking mouth. The beneficial effect that sets up like this is, adopt above-mentioned scheme, through seting up the second striking mouth, and form the pulling-on piece 21 with yoke 2 extension, and shield the second striking mouth, the shielding of here can be partly shielding also can be completely shielding, thereby when taking place emergency, can introduce the arc extinguishing chamber by the second striking mouth with the electric arc through the pulling-on piece 21, carry out more abundant arc extinction, make overall structure's use more safe and reliable, and simple structure has good result of use simultaneously.
As a further arrangement of the present utility model, the pulling-on piece 21 is formed with side plates 22 on both sides. The beneficial effect of setting like this is, adopts above-mentioned scheme, through the area that curb plate 22 further increase was used for striking, guarantees that electric arc gets into arc extinguishing chamber 11, improves the extinction efficiency.
As a further arrangement of the utility model, the housing 1 is provided with a supporting protrusion 12 corresponding to the side plate 22, and the side plate 22 is arranged on the supporting protrusion 12 in a abutting manner. The beneficial effect that sets up like this is, adopts above-mentioned scheme, further improves the stability of yoke 2 structure installation, provides the support for the traction plate, avoids the unbalance of yoke 2 overall structure, guarantees holistic result of use, and simple structure does benefit to the realization simultaneously.
As a further arrangement of the present utility model, the supporting protrusion 12 extends toward and is connected to the second side wall, and the yoke 2 is disposed on the supporting protrusion 12 in a abutting manner. The beneficial effect that sets up like this is, adopts above-mentioned scheme, is convenient for fix a position the installation to yoke 2, improves the installation convenience, and simple structure does benefit to the realization simultaneously.
As a further arrangement of the utility model, the two sides of the magnetic yoke 2 are respectively provided with a baffle wall 23, and the position corresponding to the baffle wall 23 in the shell 1 is provided with a positioning wall 13 for abutting against the edge of the baffle wall 23. The beneficial effect of setting like this is, adopts above-mentioned scheme, sets up like this and further improves the stability of yoke 2 mounted position, improves the convenience of installation.
The above examples are only one of the preferred embodiments of the present utility model, and the ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are included in the scope of the present utility model.
Claims (5)
1. The utility model provides an explosion chamber structure of low voltage circuit breaker, includes the casing, be formed with the arc extinguishing cavity in the casing, the interval is provided with the arc extinguishing bars piece in the arc extinguishing cavity, the explosion chamber includes first lateral wall and second lateral wall, first striking mouth has been seted up on the first lateral wall, correspond first striking mouth position in the casing and be provided with stationary contact and striking piece, the striking piece is connected with the stationary contact, the striking piece extends in to the arc extinguishing cavity through first striking mouth, its characterized in that: the magnetic yoke is arranged on the second side wall, the second arc striking opening is arranged on the second side wall, the magnetic yoke extends to the second arc striking opening to form a traction piece, and the traction piece is shielded on the second arc striking opening.
2. The arc chute structure of a low voltage circuit breaker as claimed in claim 1, wherein: side plates are formed on two sides of the traction piece.
3. The arc chute structure of a low voltage circuit breaker as claimed in claim 2, wherein: the shell is provided with supporting protrusions corresponding to the side plates, and the side plates are arranged on the supporting protrusions in a collision mode.
4. The arc chute structure of a low voltage circuit breaker as claimed in claim 3, wherein: the support protrusion extends towards the second side wall and is connected with the second side wall, and the magnetic yoke is arranged on the support protrusion in a collision mode.
5. The arc chute structure of a low voltage circuit breaker according to claim 1 or 2 or 3 or 4, characterized in that: the magnetic yoke both sides are provided with the retaining wall respectively, correspond the retaining wall position in the casing and be provided with the locating wall that is used for contradicting at the retaining wall border.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320743387.4U CN220041646U (en) | 2023-03-31 | 2023-03-31 | Arc extinguishing chamber structure of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320743387.4U CN220041646U (en) | 2023-03-31 | 2023-03-31 | Arc extinguishing chamber structure of low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220041646U true CN220041646U (en) | 2023-11-17 |
Family
ID=88723122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320743387.4U Active CN220041646U (en) | 2023-03-31 | 2023-03-31 | Arc extinguishing chamber structure of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220041646U (en) |
-
2023
- 2023-03-31 CN CN202320743387.4U patent/CN220041646U/en active Active
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