CN219180462U - Multi-chamber arc extinguishing device and circuit breaker - Google Patents
Multi-chamber arc extinguishing device and circuit breaker Download PDFInfo
- Publication number
- CN219180462U CN219180462U CN202223499004.8U CN202223499004U CN219180462U CN 219180462 U CN219180462 U CN 219180462U CN 202223499004 U CN202223499004 U CN 202223499004U CN 219180462 U CN219180462 U CN 219180462U
- Authority
- CN
- China
- Prior art keywords
- arc
- chamber
- extinguishing
- grid
- arc extinguishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a multi-chamber arc-extinguishing device, which comprises a plurality of arc-extinguishing chambers for extinguishing arc of the same contact group, wherein each arc-extinguishing chamber is respectively provided with a grid sheet group; the openings of the arc-extinguishing chambers are parallel, and the openings of the arc-extinguishing chambers are positioned on the same side of the multi-chamber arc-extinguishing device; each grid sheet group is sequentially connected in series through a conductive piece to form a grid sheet assembly; the two free ends of the grid sheet assembly are positioned at the two opposite ends of the multi-chamber arc extinguishing device; when the breaker is in a breaking state, the arc striking sheets of the moving contact and the fixed contact are respectively close to two ends of the grid sheet assembly. In the multi-chamber arc extinguishing device, the arrangement mode of each arc extinguishing chamber avoids increasing the size of the whole multi-chamber arc extinguishing device along the arrangement direction of the grid sheets, and the grid sheet groups of each arc extinguishing chamber are sequentially connected in series to form a grid sheet assembly, so that the electric arcs between the moving contact and the fixed contact penetrate through all the arc extinguishing chambers when the circuit breaker breaks, the electric arc voltage is obviously increased, the electric arc breaking effect is good, and the multi-chamber arc extinguishing device is suitable for direct current electric arc breaking. The utility model also discloses a circuit breaker applying the multi-chamber arc extinguishing device.
Description
Technical Field
The utility model relates to the technical field of arc extinction of circuit breakers, in particular to a multi-chamber arc extinction device and a circuit breaker applying the multi-chamber arc extinction device.
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.
Along with the rising of the solar photovoltaic industry and the wind power industry, the application of the direct current technology is also becoming wider and wider. The direct current does not have zero crossing points, and the arc cannot be extinguished in an instant when the alternating current crosses zero like alternating current, and the arc voltage is caused to exceed the power supply voltage mainly by stretching the arc, so that the arc is extinguished. The arc voltage is equal to the sum of voltages of arc sections between adjacent grids, the arc is lengthened to increase the contact opening distance of the circuit breaker, the size of the arc extinguishing chamber along the arrangement direction of the grids is increased, and the number of the grids can be increased, so that the arc voltage is increased. However, the internal structure of the circuit breaker is complicated, and it is difficult to increase the size of the arc extinguishing chamber in the arrangement direction of the gate sheets.
Therefore, how to increase the arc voltage and improve the arc breaking effect on the basis of avoiding increasing the size of the arc extinguishing chamber along the arrangement direction of the grid plates so as to be suitable for direct current arc breaking is a problem to be solved urgently by the person skilled in the art.
Disclosure of Invention
In view of the above, the present utility model provides a multi-chamber arc extinguishing device, in which a plurality of arc extinguishing chambers are disposed, each arc extinguishing chamber is disposed side by side along a direction perpendicular to a direction in which the grid plates are arranged in the arc extinguishing chambers, so that the size of the whole multi-chamber arc extinguishing device along the direction in which the grid plates are arranged is prevented from being increased, and meanwhile, the grid plate groups of each arc extinguishing chamber are sequentially connected in series to form a grid plate assembly, so that when a circuit breaker breaks, an arc between moving and static contacts penetrates through the whole multi-chamber arc extinguishing device, the arc is cut by the grid plates of all the arc extinguishing chambers, the arc is cut into more sections, the arc voltage is significantly increased, and the faster and better breaking of the arc is realized, and the multi-chamber arc extinguishing device is suitable for direct current arc breaking. The utility model also provides a breaker applying the multi-chamber arc extinguishing device, which has strong arc breaking capacity and is suitable for breaking direct current arc.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a multi-chamber arc-extinguishing device is used for a circuit breaker and comprises a plurality of arc-extinguishing chambers for extinguishing arc of the same contact group, wherein each arc-extinguishing chamber is provided with a grid sheet group; the openings of the arc-extinguishing chambers are parallel, and the openings of the arc-extinguishing chambers are positioned on the same side of the multi-chamber arc-extinguishing device;
the grid sheet groups are sequentially connected in series along the arrangement direction of the arc extinguishing chambers through conductive pieces to form a grid sheet assembly; two free ends of the grid sheet assembly are distributed at two opposite ends of the multi-chamber arc extinguishing device;
when the circuit breaker is in a breaking state, a moving contact in the contact group is close to a first end of the grid sheet assembly, and an arc striking sheet of a fixed contact is close to a second end of the grid sheet assembly.
Preferably, in the multi-chamber arc extinguishing device, in two adjacent arc extinguishing chambers, a first end grid sheet of one grid sheet group is connected with a second end grid sheet of the other grid sheet group through a conductive member;
in all the arc-extinguishing chambers, each first end grid sheet is connected with at most one second end grid sheet through the conductive piece, and each second end grid sheet is connected with at most one first end grid sheet through the conductive piece.
Preferably, in the multi-chamber arc extinguishing device, the arc extinguishing chamber includes:
the insulating side plates are two and are oppositely arranged;
the fixing plates are fixedly connected with the two insulating side plates respectively;
two ends of each grid piece of the grid piece group in the arc extinguishing chamber are respectively fixed on the two insulating side plates, and the grid pieces are arranged at intervals one by one.
Preferably, in the multi-chamber arc extinguishing device, the insulating side plates of two adjacent arc extinguishing chambers are tightly attached to each other, and the conductive member is clamped between the insulating side plates of the two adjacent arc extinguishing chambers, which are tightly attached to each other.
Preferably, in the multi-chamber arc extinguishing device, at least one of two adjacent insulating side plates, which are closely attached to each other, of the arc extinguishing chambers is provided with a receiving groove, and the conductive member is disposed in the receiving groove.
Preferably, in the multi-chamber arc extinguishing device, the arc extinguishing chamber further comprises a zero arc screen plate located between the grid plate and the fixing plate, and two ends of the zero arc screen plate are respectively fixed on the two insulating side plates; the zero arc net plates are multiple and are arranged at intervals.
Preferably, in the multi-chamber arc extinguishing device, the fixing plates of the arc extinguishing chambers are fixed to each other.
Preferably, the multi-chamber arc extinguishing device further comprises an arc striking piece, wherein the arc striking piece is fixed on an insulating side plate of the arc extinguishing chamber, and when the circuit breaker is in a breaking state, the arc striking piece is positioned at a position corresponding to a moving contact of the circuit breaker.
Preferably, in the multi-chamber arc extinguishing device, the number of the arc extinguishing chambers is two.
The circuit breaker comprises a contact group and an arc-extinguishing device for extinguishing arc of the contact group, wherein the arc-extinguishing device is the multi-chamber arc-extinguishing device according to any one of the technical schemes.
The utility model also provides a multi-chamber arc-extinguishing device, which comprises a plurality of arc-extinguishing chambers for extinguishing arc of the same contact group, wherein each arc-extinguishing chamber is respectively provided with a grid sheet group; the openings of the arc-extinguishing chambers are parallel, and the openings of the arc-extinguishing chambers are positioned on the same side of the multi-chamber arc-extinguishing device; each grid sheet group is sequentially connected in series along the arrangement direction of each arc extinguishing chamber through a conductive piece to form a grid sheet assembly; two free ends of the grid sheet assembly are distributed at two opposite ends of the multi-chamber arc extinguishing device; when the circuit breaker is in a breaking state, a moving contact in the contact group is close to a first end of the grid sheet assembly, and an arc striking sheet of a fixed contact is close to a second end of the grid sheet assembly.
In the multi-chamber arc extinguishing device provided by the utility model, the grid sheet groups of the adjacent arc extinguishing chambers are sequentially connected in series to form the grid sheet assembly through the conductive piece, wherein the two grid sheets connected through the conductive piece are equal in potential, when the circuit breaker performs breaking operation, the arc striking sheet of the fixed contact is close to the second end of the grid sheet assembly, the movable contact is switched from a state of being tightly connected with the fixed contact to a state of being separated from the fixed contact and being close to the second end of the grid sheet assembly, so that the arc voltage between the movable contact and the fixed contact penetrates through the whole multi-chamber arc extinguishing device, the arc voltage between the movable contact and the fixed contact is equal to the sum of the arc voltages of all the arc extinguishing chambers, under the condition, the electric arcs between the movable contact and the fixed contact are cut by the grid sheets of all the arc extinguishing chambers, the number of the grid sheets for cutting the electric arcs is increased, the effect of increasing the arc voltage is realized, the breaking electric arcs of the circuit breaker can be better and faster, the problem of continuous arcing of the circuit breaker can be solved, and the breaking index of the electric arc breaker is improved, and the device is suitable for direct current breaking. Meanwhile, each arc extinguishing chamber in the multi-chamber arc extinguishing device is arranged side by side, so that the dimension of the whole multi-chamber arc extinguishing device along the arrangement direction of the grid plates is prevented from being increased.
In addition, the multi-chamber arc extinguishing device can solve the problem of continuous arcing of the existing circuit breaker, improves breaking indexes of the circuit breaker, can be applied to high-voltage AC/DC breaking of frame circuit breakers and molded case circuit breakers, and meets the requirement of the circuit breaker on development in the directions of high voltage, DC and the like.
The utility model also provides a breaker applying the multi-chamber arc extinguishing device, which has strong arc breaking capacity and is suitable for breaking direct current arc.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a cross-sectional view of a multi-chamber arc extinguishing device provided by an embodiment of the present utility model;
fig. 2 is a schematic perspective view of a multi-chamber arc extinguishing device according to an embodiment of the present utility model;
fig. 3 is another perspective view of a multi-chamber arc extinguishing device according to an embodiment of the present utility model;
fig. 4 is a schematic view of another angular perspective structure of the multi-chamber arc extinguishing device according to the embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a conductive member according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a first grid assembly according to an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of a second grid assembly according to an embodiment of the present utility model;
fig. 8 is a schematic structural diagram of a third grid assembly according to an embodiment of the present utility model;
wherein, in fig. 1-8:
an arc extinguishing chamber 101; an insulating side plate 111; a grid set 112; a fixing plate 113; zero arc mesh plate 114; a conductive member 102; an arc striking piece 103; a grid assembly 10; a first end 11; a second end 12.
Detailed Description
The embodiment of the utility model discloses a multi-chamber arc-extinguishing device, which is provided with a plurality of arc-extinguishing chambers, wherein each arc-extinguishing chamber is arranged side by side along the direction perpendicular to the arrangement direction of grid sheets in the arc-extinguishing chamber, so that the increase of the size of the whole arc-extinguishing chamber along the arrangement direction of the grid sheets is avoided, and meanwhile, the grid sheet groups of each arc-extinguishing chamber are sequentially connected in series to form a grid sheet assembly, so that when a circuit breaker is disconnected, an electric arc between a moving contact and a static contact penetrates through the whole multi-chamber arc-extinguishing device, the electric arc is cut by the grid sheets of all the arc-extinguishing chambers, the electric arc is cut into more sections, the electric arc voltage is obviously increased, the electric arc is disconnected faster and better, and the multi-chamber arc-extinguishing device is suitable for direct current arc disconnection. The embodiment of the utility model also discloses a breaker applying the multi-chamber arc extinguishing device, which has strong arc breaking capacity and is suitable for breaking direct current arc.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-8, an embodiment of the present utility model provides a multi-chamber arc extinguishing device, which includes a plurality of arc extinguishing chambers 101 for extinguishing arc of the same contact group, each arc extinguishing chamber 101 is provided with a grid group 112 respectively; each grid sheet group 112 comprises a plurality of grid sheets which are arranged in a stacking way; the opening of each arc extinguishing chamber 101 is positioned on the same side of the multi-chamber arc extinguishing device; each grid sheet group 112 is sequentially connected in series along the arrangement direction of each arc extinguishing chamber 101 through the conductive member 102 to form a grid sheet assembly 10; the two free ends (i.e., the first end 11 and the second end 12) of the grid assembly 10 are distributed at two opposite ends of the multi-chamber arc extinguishing device (here, "two opposite ends of the multi-chamber arc extinguishing device" are two ends of the multi-chamber arc extinguishing device along the grid arrangement direction in the grid set 112), as shown in fig. 6-8; when the circuit breaker is in a breaking state, a moving contact in the contact group is close to a first end 11 of the grid sheet assembly 10, and an arc striking sheet of a fixed contact is close to a second end 12 of the grid sheet assembly 10.
In the multi-chamber arc extinguishing device provided by the embodiment of the utility model, the grid sheet groups 112 of the adjacent arc extinguishing chambers 101 are sequentially connected in series to form the grid sheet assembly 10 through the conductive piece 102, wherein the two grid sheet potentials connected through the conductive piece 102 are equal, when the circuit breaker performs breaking operation, the arc striking sheet of the fixed contact is close to the second end 12 of the grid sheet assembly 10, the movable contact is switched from a state of being tightly attached to the fixed contact to a state of being separated from the fixed contact and being close to the first end 11 of the grid sheet assembly 10, so that the arc voltage between the movable contact and the fixed contact penetrates through the whole multi-chamber arc extinguishing device, and the arc voltage between the movable contact and the fixed contact is equal to the sum of the arc voltages of all the arc extinguishing chambers 101. Meanwhile, in the multi-chamber arc extinguishing device, the arc extinguishing chambers 101 are arranged side by side, so that the dimension of the whole arc extinguishing chamber 101 along the arrangement direction of the grid plates is prevented from being increased.
In addition, the multi-chamber arc extinguishing device can solve the problem of continuous arcing of the existing circuit breaker, improves breaking indexes of the circuit breaker, can be applied to high-voltage alternating current and direct current high breaking of frame circuit breakers and molded case circuit breakers, and meets the requirement of the circuit breaker on development in the directions of high voltage, direct current and the like.
Specifically, in the multi-chamber arc extinguishing device, two adjacent arc extinguishing chambers 101 are closely attached to each other; the arrangement direction of each arc extinguishing chamber 101 is perpendicular or approximately perpendicular to the arrangement direction of each gate in the gate group 112.
Referring to fig. 6, in the multi-chamber arc extinguishing device, each arc extinguishing chamber 101 is provided with a grid set 112 (i.e. each grid set 112 shown in fig. 6 is a grid set 112 of a different arc extinguishing chamber 101); in two adjacent arc-extinguishing chambers 101, a first end grid of one grid group 112 and a second end grid of the other grid group 112 are connected through a conductive piece 102; in all the arc-extinguishing chambers 101, each first end grid is connected with at most one second end grid through a conductive member 102, and each second end grid is connected with at most one first end grid through a conductive member 102. In each of the gate groups 112, the first end gate and the second end gate are two gates located at both ends in the gate arrangement direction.
In the multi-chamber arc extinguishing device shown in fig. 6, the serial connection of the grid sheet group 112 in turn ensures that the two ends (i.e., the first end 11 and the second end 12) of the grid sheet assembly 10 are respectively located at the opposite ends of the whole multi-chamber arc extinguishing device, so as to ensure that the arc voltage between the moving contact and the static contact is the sum of the arc voltages of all the arc extinguishing chambers 101 in the opening state, thereby increasing the arc voltage and further improving the arc extinguishing effect.
The sequential serial connection of the grid plate set 112 may also adopt the following scheme, which is not limited in this embodiment, and only needs to ensure that two ends of the grid plate assembly 10 are located at two opposite ends of the whole multi-chamber arc extinguishing device:
(1) referring to fig. 8, when the number of arc-extinguishing chambers is odd, the first end gate sheets in the gate sheet groups 112 of two adjacent arc-extinguishing chambers 101 are connected through the conductive member 102, or the second end gate sheets in the gate sheet groups 112 of two adjacent arc-extinguishing chambers 101 are connected through the conductive member 102; in all the arc-extinguishing chambers 101, each first end gate is connected to at most one first end gate through a conductive member 102, and each second end gate is connected to at most one second end gate through a conductive member 102.
(2) Referring to fig. 7, in the gate group 112 of two adjacent arc-extinguishing chambers 101, a first end gate is connected through a conductive member 102, or a second end gate is connected through a conductive member 102, or the first end gate is connected with the second end gate through a conductive member 102; in all the arc extinguishing chambers 101, the end gate of each gate group 112 is connected to at most one end gate of the adjacent gate group 112 by the conductive member 102.
Specifically, in the multi-chamber arc extinguishing device described above, the arc extinguishing chamber 101 includes:
the fixed plates 113, the fixed plates 113 are fixedly connected with the two insulating side plates 111 respectively;
wherein, two ends of each grid of the grid group 112 in the arc extinguishing chamber 101 are respectively fixed on two insulating side plates 111, and each grid is arranged at intervals one by one; one side of the arc extinguishing gap between adjacent grid plates is used for arc feeding, and the other side is close to the fixed plate 113.
The insulating side plates 111 of the adjacent two arc-extinguishing chambers 101 are closely attached to each other, and in the case where the first end gate sheet and the second end gate sheet in the adjacent two arc-extinguishing chambers 101 are connected by the conductive member 102, the conductive member 102 may be disposed to be sandwiched between the insulating side plates 111 of the adjacent two arc-extinguishing chambers 101 closely attached to each other, so as to ensure insulation of the conductive member 102 from the other gate sheets.
Further, at least one of the two insulating side plates 111 of the two adjacent arc extinguishing chambers 101 is provided with a receiving groove, and the conductive member 102 is disposed in the receiving groove, so as to ensure that a gap is not generated between the two insulating side plates 111 that are adjacent to each other due to the conductive member 102 being clamped therebetween.
Optionally, the arc extinguishing chamber 101 further includes a zero arc screen 114 between the grid plate and the fixing plate 113, and two ends of the zero arc screen 114 are respectively fixed to the two insulating side plates 111; the zero arc screen 114 is a plurality of, and is spaced apart from, the screen as shown in fig. 1. The zero-arc mesh plate 114 is disposed parallel or approximately parallel to the fixed plate 113.
The zero arc screen 114 can cool the residual arc overflowing from the arc extinguishing gap between the adjacent screens, and avoid the residual arc from flying out of the arc extinguishing chamber 101 to endanger the safety of surrounding electrical equipment.
In order to connect the arc extinguishing chambers 101 as one body, the fixing plates 113 of the arc extinguishing chambers 101 may be provided to be fixed to each other by welding or the like; of course, the fixing plates 113 of all the arc extinguishing chambers 101 may also be provided in an integrated structure, which is convenient for both production and assembly.
The multi-chamber arc extinguishing device further includes an arc striking plate 103, and the arc striking plate 103 is fixed to an insulating side plate 111 of the arc extinguishing chamber 101, as shown in fig. 2. When the circuit breaker is in a breaking state, the arc striking piece 103 is positioned at a position corresponding to a moving contact of the circuit breaker, namely, the arc striking piece 103 is close to the first end 11 of the grid piece assembly 10. The striking plate 103 is preferably disposed parallel to the gate plate adjacent thereto, and the present embodiment is not limited thereto.
The number of arc extinguishing chambers 101 can be three, four, five, etc., preferably two, so as to prevent the arc extinguishing chambers 101 from normally performing an arc extinguishing function due to the fact that the arc extinguishing chambers are too small in size along the arrangement mode to influence the arc entering each arc extinguishing chamber 101.
The utility model also provides a circuit breaker, which comprises a contact group and an arc-extinguishing device for extinguishing the arc of the contact group, wherein the arc-extinguishing device is the multi-chamber arc-extinguishing device provided by the embodiment.
The circuit breaker provided by the embodiment is applied to the multi-chamber arc extinguishing device provided by the embodiment, has strong breaking arc capacity and is suitable for breaking direct current arc. Of course, the multi-chamber arc extinguishing device provided in this embodiment also has other effects related to the multi-chamber arc extinguishing device provided in the above embodiment, and will not be described herein.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A multi-chamber arc-extinguishing device is used for a circuit breaker and is characterized by comprising a plurality of arc-extinguishing chambers for extinguishing arc of the same contact group, wherein each arc-extinguishing chamber is provided with a grid group; the openings of the arc-extinguishing chambers are parallel, and the openings of the arc-extinguishing chambers are positioned on the same side of the multi-chamber arc-extinguishing device;
the grid sheet groups are sequentially connected in series along the arrangement direction of the arc extinguishing chambers through conductive pieces to form a grid sheet assembly; two free ends of the grid sheet assembly are distributed at two opposite ends of the multi-chamber arc extinguishing device;
when the circuit breaker is in a breaking state, a moving contact in the contact group is close to a first end of the grid sheet assembly, and an arc striking sheet of a fixed contact is close to a second end of the grid sheet assembly.
2. The multi-chamber arc extinguishing device according to claim 1, wherein the first end gate of one of the gate groups and the second end gate of the other gate group are connected by a conductive member in adjacent two of the arc extinguishing chambers;
in all the arc-extinguishing chambers, each first end grid sheet is connected with at most one second end grid sheet through the conductive piece, and each second end grid sheet is connected with at most one first end grid sheet through the conductive piece.
3. The multi-chamber arc extinguishing device according to claim 2, wherein the arc extinguishing chamber includes:
the insulating side plates are two and are oppositely arranged;
the fixing plates are fixedly connected with the two insulating side plates respectively;
two ends of each grid piece of the grid piece group in the arc extinguishing chamber are respectively fixed on the two insulating side plates, and the grid pieces are arranged at intervals one by one.
4. A multi-chamber arc extinguishing device according to claim 3, wherein insulating side plates of adjacent two of the arc extinguishing chambers are abutted against each other, and the conductive member is sandwiched between the insulating side plates of the adjacent two of the arc extinguishing chambers which are abutted against each other.
5. The multi-chamber arc extinguishing device according to claim 4, wherein at least one of two insulating side plates, which are adjacent to each other, of the two arc extinguishing chambers is provided with a receiving groove, and the conductive member is disposed in the receiving groove.
6. The multi-chamber arc extinguishing device according to claim 3, wherein the arc extinguishing chamber further comprises a zero arc screen plate located between the grid plate and the fixing plate, both ends of the zero arc screen plate being respectively fixed to the two insulating side plates; the zero arc net plates are multiple and are arranged at intervals.
7. A multi-chamber arc suppressing apparatus according to claim 3, wherein the fixing plates of each of the arc suppressing chambers are fixed to each other.
8. The multi-chamber arc extinguishing device according to claim 1, further comprising an arc striking piece fixed to an insulating side plate of the arc extinguishing chamber, and the arc striking piece is located at a position corresponding to a moving contact of the circuit breaker when the circuit breaker is in a breaking state.
9. A multi-chamber arc suppressing device according to any one of claims 1 to 8, wherein the number of arc suppressing chambers is two.
10. A circuit breaker comprising a contact set and an arc extinguishing device for extinguishing the arc of said contact set, characterized in that said arc extinguishing device is a multi-chamber arc extinguishing device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223499004.8U CN219180462U (en) | 2022-12-22 | 2022-12-22 | Multi-chamber arc extinguishing device and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223499004.8U CN219180462U (en) | 2022-12-22 | 2022-12-22 | Multi-chamber arc extinguishing device and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219180462U true CN219180462U (en) | 2023-06-13 |
Family
ID=86663910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223499004.8U Active CN219180462U (en) | 2022-12-22 | 2022-12-22 | Multi-chamber arc extinguishing device and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219180462U (en) |
-
2022
- 2022-12-22 CN CN202223499004.8U patent/CN219180462U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10026578B2 (en) | Breaker facilitating rapid movement and elongation of arc | |
| CN115799014A (en) | Multi-chamber arc extinguishing device and circuit breaker | |
| CN102646553B (en) | Circuit breaker with arc extinguishing mechanism | |
| CN105762038B (en) | Breaker contact system and breaker | |
| CN213583681U (en) | Circuit breaker | |
| CN204215989U (en) | A kind of circuit breaker being beneficial to electric arc fast moving and elongation | |
| CN219180462U (en) | Multi-chamber arc extinguishing device and circuit breaker | |
| CN105762039A (en) | Circuit breaker contact system and circuit breaker | |
| CN212517099U (en) | Arc extinguishing chamber of circuit breaker | |
| CN109256291A (en) | Direct current arc-control device and electric motor type direct current electric switching system | |
| CN109585193B (en) | Switching device | |
| CN203983210U (en) | A kind of arc-control device of miniature circuit breaker | |
| US10566157B2 (en) | Heavy current reed switch contact structure | |
| CN210296265U (en) | Novel fixed circuit breaker | |
| CN203103210U (en) | Vacuum arc extinguishing chamber and vacuum circuit breaker using same | |
| CN210245380U (en) | Heavy-current double-break isolating switch for electrified railway | |
| CA3117243C (en) | Arc-extinguishing device and circuit breaker provided with arc-extinguishing device | |
| CN220829908U (en) | High-performance electric appliance switch arc extinguishing chamber | |
| CN105869942A (en) | Three-position isolation switch for switch cabinet | |
| RU2371800C2 (en) | Arc control chamber | |
| CN215731559U (en) | Arc extinguish chamber structure of circuit breaker | |
| CN218602369U (en) | Grid arc extinguish chamber of circuit breaker | |
| CN221176097U (en) | Circuit breaker | |
| CN219759508U (en) | Static contact structure | |
| CN205645655U (en) | Cubical switchboard three -station isolation switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |