CN214505420U - N-pole switch module of automatic reclosing miniature circuit breaker - Google Patents
N-pole switch module of automatic reclosing miniature circuit breaker Download PDFInfo
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- CN214505420U CN214505420U CN202120878381.9U CN202120878381U CN214505420U CN 214505420 U CN214505420 U CN 214505420U CN 202120878381 U CN202120878381 U CN 202120878381U CN 214505420 U CN214505420 U CN 214505420U
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Abstract
The utility model relates to an automatic reclosing lock miniature circuit breaker's N utmost point switch module, which comprises a housin, operating device, the moving contact, the magnetic blow-out arc extinguishing system, go out the wiring board, the stationary contact, advance the wiring board, the magnetic blow-out arc extinguishing system includes the explosion chamber, move the striking piece, quiet striking piece, the one end of moving the striking piece is bent and is extended and connect on advancing the wiring board, the other end of moving the striking piece is bent to the moving contact direction and is extended, the one end of quiet striking piece is connected on going out the wiring board, the other end of quiet striking piece is bent to the stationary contact direction and is extended and be formed with the joint portion of laminating on quiet striking piece one side, be formed with the striking groove between quiet striking piece and the moving the striking piece, be provided with a set of magnetic blow-out piece subassembly on the casing respectively on the both sides that correspond the striking groove, be formed with the magnetic blow-out passageway between two sets of magnetic blow-out piece subassembly and quiet striking piece, the moving the striking piece, the utility model discloses a magnetic blow-out passageway has simple structure, Stable and reliable performance, good arc-extinguishing effect and long service life.
Description
Technical Field
The utility model relates to a circuit breaker technical field, concretely relates to automatic reclosing lock miniature circuit breaker's N utmost point switch module.
Background
At present, small circuit breakers are widely used in low-voltage distribution networks, mainly in various places such as industrial, commercial, high-rise and residential houses, and can perform overcurrent protection and leakage protection on electric devices such as motors, distribution lines and lighting circuits. The traditional small circuit breaker needs manual operation to complete the opening and closing actions. With the development of intelligent power grids in China, on the premise of requiring safe operation of the power grids, the realization of intellectualization of control of electric appliances is more and more urgent. In order to cope with new situation changes, the existing miniature circuit breaker should be provided with an automatic reclosing function. The automatic reclosing device of the miniature circuit breaker is an accessory used for a remote electric opening and closing circuit breaker, is directly matched with a prepayment electric energy meter for use, and can realize reclosing after payment. The existing miniature circuit breaker with automatic reclosing comprises a circuit breaker unit, the automatic reclosing device, the circuit breaker unit comprises an N line switch module arranged on one side of the automatic reclosing device, a plurality of L line switch modules arranged on one side of the N line switch module in a superposed manner, each L line switch module comprises a shell, an operating mechanism arranged in each shell, a moving contact arranged in a linkage manner with the operating mechanism, a magnetic blowout system arranged in each shell, the structural design of the magnetic blowout system of the existing N line switch module is unreasonable, the arc extinguishing effect of the magnetic blowout system is poor, electric arc cannot be quickly extinguished, and therefore a contact of the N line switch module is easily burnt and damaged, and the service life of the contact is short.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance are reliable, the arc extinguishing is effectual, long service life's automatic reclosing lock miniature circuit breaker's N utmost point switch module.
In order to achieve the purpose, the utility model adopts an N pole switch module of an automatic reclosing small circuit breaker, which comprises a shell, an operating mechanism, a moving contact, a magnetic blow-out arc extinguishing system, a wiring board, a static contact and a wiring board, wherein the static contact is arranged on the wiring board and matched with the moving contact, the magnetic blow-out arc extinguishing system comprises an arc extinguish chamber, a movable arc striking sheet arranged on one end of the arc extinguish chamber, and a static arc striking sheet arranged on the other end of the arc extinguish chamber, one end of the movable arc striking sheet is bent and extended and connected on the wiring board, the other end of the movable arc striking sheet is bent and extended towards the moving contact, one end of the static arc striking sheet is connected on the wiring board, the other end of the static arc striking sheet is bent and extended towards the static contact and is provided with a clamping part attached on one side of the static arc striking sheet, an arc striking groove is formed between the static arc striking sheet and the movable arc striking sheet, a group of magnetic blow-out sheet assemblies are respectively arranged on two sides of the shell corresponding to the arc striking grooves, and a magnetic blowing arc striking channel is formed between the two groups of magnetic blowing plate assemblies and the static arc striking plate and between the two groups of magnetic blowing plate assemblies and the movable arc striking plate, and the magnetic blowing arc striking channel is communicated between the movable contact and the arc extinguishing chamber.
The beneficial effect of above-mentioned structure is: a magnetic blow-out arc striking channel is formed between the two groups of magnetic blow-out sheet assemblies of the magnetic blow-out arc extinguishing system and the static arc striking sheet and the movable arc striking sheet, and the magnetic blow-out arc striking channel adopts a closed-loop magnetic blow-out arc extinguishing structural design, so that the arc extinguishing effect is stronger. Be provided with magnetism between moving contact and explosion chamber and blow the striking passageway, electric arc can enter into the explosion chamber along magnetism blows the striking passageway to can realize the quick extinguishing of electric arc. Therefore, the N-pole switch module of the automatic reclosing miniature circuit breaker has the advantages of simple structure, stable and reliable performance, good arc extinguishing effect and long service life.
Particularly, the magnetic blow-out piece subassembly including set up the magnetic blow-out piece on the shells inner wall, stack at the arc separation piece on the magnetic blow-out piece, the casing on be provided with the joint post, the joint post pass the through-hole of magnetic blow-out piece and the block is in the card hole at arc separation piece, and constitute the joint cooperation of magnetic blow-out piece subassembly and casing. The magnetic blow-out assembly is clamped on the inner wall of the shell, so that the magnetic blow-out assembly and the shell are convenient to assemble, the assembly is more convenient, and the two sets of magnetic blow-out assemblies can form a closed-loop magnetic blow-out arc striking channel with the static arc striking sheets and the movable arc striking sheets, and the arc extinguishing performance of the N-pole switch module is favorably enhanced.
Particularly, the explosion chamber including set up the arc-insulating cover in the casing, a plurality of interval arrangement set up the arc extinguishing bars piece in the arc-insulating cover, the one end of a plurality of arc extinguishing bars pieces extend outside the arc-insulating cover, and the one end of a plurality of arc extinguishing bars pieces is provided with the arc extinguishing groove that the magnetism blows the striking channel and is linked together. The arc extinguishing of explosion chamber is deleted the piece and is extended outside the flash barrier, has shortened the arc extinguishing and has deleted the piece and the interval of magnetism blowout striking channel, and electric arc can enter into the explosion chamber fast, is favorable to strengthening this N utmost point switch module's arc extinguishing effect.
Particularly, the tail part of the other end of the movable arc striking piece forms an arc striking angle, and one end of the arc striking angle extends towards the direction of the movable contact and is inserted in the arc extinguishing groove. The arc striking angle can lead the residual electric arc of the moving contact into the arc extinguishing chamber quickly, so that the electric arc can be extinguished quickly, the moving contact is prevented from being burnt by the electric arc, and the service life of the N-pole switch module is prolonged.
Particularly, one end of the moving contact is bent towards the fixed contact and extends, a bent part inserted in the magnetic blow arc striking channel is formed, the moving contact matched with the fixed contact is arranged on the bent part, two convex ribs are arranged on the inner wall of the shell corresponding to two sides of the moving contact, and the two convex ribs are respectively enclosed on one side of the two groups of magnetic blow piece assemblies. The convex ribs on the shell can prevent electric arcs from jumping out of the magnetic blowout arc striking channel, so that a closed-loop type magnetic blowout channel can be formed, electric arcs can enter the arc extinguishing chamber along the magnetic blowout arc striking channel quickly, and the electric arcs can be extinguished quickly.
Drawings
Fig. 1 is an internal structure diagram of the embodiment of the present invention.
Fig. 2 is a perspective view of a magnetic quenching system according to an embodiment of the present invention.
Fig. 3 is a front view of an internal structure of a magnetic quenching system according to an embodiment of the present invention.
Fig. 4 is a perspective view of the arc extinguish chamber according to the embodiment of the present invention.
Fig. 5 is an internal structure view of the housing according to the embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 5, an embodiment of the present invention is an N-pole switch module of an automatic reclosing miniature circuit breaker, comprising a housing 10, an operating mechanism 11, a moving contact 12, a magnetic quenching system 20, a terminal plate 13, a stationary contact 14 disposed on the terminal plate 13 and matched with the moving contact 12, and a terminal plate 15, wherein the magnetic quenching system 20 includes an arc extinguish chamber 21, a movable arc striking plate 22 disposed on one end of the arc extinguish chamber 21, and a stationary arc striking plate 23 disposed on the other end of the arc extinguish chamber 21, one end of the movable arc striking plate 22 is bent and extended and connected to the terminal plate 15, the other end of the movable arc striking plate 22 is bent and extended toward the moving contact 12, one end of the stationary arc striking plate 23 is connected to the terminal plate 13, and the other end of the stationary arc striking plate 23 is bent and extended toward the stationary contact 14 and is formed with a clamping portion 231 attached to one side of the stationary arc striking plate 23, an arc striking groove 200 is formed between the static arc striking plate 23 and the movable arc striking plate 22, a group of magnetic blow-off plate assemblies 30 are respectively arranged on two sides of the shell 10 corresponding to the arc striking groove 200, magnetic blow-off arc striking channels 2000 are formed between the two groups of magnetic blow-off plate assemblies 30 and the static arc striking plate 23 as well as between the two groups of magnetic blow-off plate assemblies 22, and the magnetic blow-off arc striking channels 2000 are communicated between the movable contact 12 and the arc extinguishing chamber 21. Magnetic blow piece subassembly 30 including set up magnetic blow piece 31 on the casing 10 inner wall, stack at the arc separation piece 32 on magnetic blow piece 31, casing 10 on be provided with joint post 101, joint post 101 pass through magnetic blow piece 31 through-hole 311 and the block in the card hole 321 at arc separation piece 32, and constitute the joint cooperation of magnetic blow piece subassembly 30 and casing 10. The magnetic blow-out assembly is clamped on the inner wall of the shell, so that the magnetic blow-out assembly and the shell are convenient to assemble, the assembly is more convenient, and the two sets of magnetic blow-out assemblies can form a closed-loop magnetic blow-out arc striking channel with the static arc striking sheets and the movable arc striking sheets, and the arc extinguishing performance of the N-pole switch module is favorably enhanced.
As shown in fig. 2 and 4, the arc extinguishing chamber 21 includes an arc shielding cover 211 disposed in the housing 10, and a plurality of arc extinguishing grids 212 disposed in the arc shielding cover 211 at intervals, wherein one end of the plurality of arc extinguishing grids 212 extends out of the arc shielding cover 211, and one end of the plurality of arc extinguishing grids 212 is provided with arc extinguishing grooves 213 communicated with the arc striking channels 200. The arc extinguishing of explosion chamber is deleted the piece and is extended outside the flash barrier, has shortened the arc extinguishing and has deleted the piece and the interval of magnetism blowout striking channel, and electric arc can enter into the explosion chamber fast, is favorable to strengthening this N utmost point switch module's arc extinguishing effect. The tail part of the other end of the movable arc ignition piece 22 forms an arc ignition angle 221, and one end of the arc ignition angle 221 extends towards the direction of the movable contact 12 and is inserted in the arc extinguishing groove 21. The arc striking angle can lead the residual electric arc of the moving contact into the arc extinguishing chamber quickly, so that the electric arc can be extinguished quickly, the moving contact is prevented from being burnt by the electric arc, and the service life of the N-pole switch module is prolonged. One end of the moving contact 12 bends and extends towards the fixed contact 14 and is formed with a bending part 121 inserted into the magnetic blowing arc striking channel 2000, a moving contact 122 matched with the fixed contact 14 is arranged on the bending part 121, a convex rib 102 is arranged on the inner wall of the shell 10 corresponding to two sides of the moving contact 122, and the two convex ribs 102 are respectively enclosed on one side of the two groups of magnetic blowing piece assemblies 30. The convex ribs on the shell can prevent electric arcs from jumping out of the magnetic blowout arc striking channel, so that a closed-loop type magnetic blowout channel can be formed, electric arcs can enter the arc extinguishing chamber along the magnetic blowout arc striking channel quickly, and the electric arcs can be extinguished quickly.
A magnetic blow-out arc striking channel is formed between the two groups of magnetic blow-out sheet assemblies of the magnetic blow-out arc extinguishing system and the static arc striking sheet and the movable arc striking sheet, and the magnetic blow-out arc striking channel adopts a closed-loop magnetic blow-out arc extinguishing structural design, so that the arc extinguishing effect is stronger. Be provided with magnetism between moving contact and explosion chamber and blow the striking passageway, electric arc can enter into the explosion chamber along magnetism blows the striking passageway to can realize the quick extinguishing of electric arc. Therefore, the N-pole switch module of the automatic reclosing miniature circuit breaker has the advantages of simple structure, stable and reliable performance, good arc extinguishing effect and long service life.
Claims (5)
1. The utility model provides an automatic reclosing miniature circuit breaker's N utmost point switch module which characterized in that: the magnetic blow-out arc extinguishing device comprises a shell, an operating mechanism, a moving contact, a magnetic blow-out arc extinguishing system, a wiring board, a stationary contact and a wiring board, wherein the stationary contact is arranged on the wiring board and is matched with the moving contact, the wiring board is arranged, the magnetic blow-out arc extinguishing system comprises an arc extinguishing chamber, a moving arc striking sheet and a stationary arc striking sheet, the moving arc striking sheet is arranged on one end of the arc extinguishing chamber, the stationary arc striking sheet is arranged on the other end of the arc extinguishing chamber, one end of the moving arc striking sheet is bent and extended and connected onto the wiring board, the other end of the moving arc striking sheet is bent and extended towards the moving contact direction, a clamping part which is attached to one side of the stationary arc striking sheet is formed at the other end of the stationary arc striking sheet, an arc striking groove is formed between the stationary arc striking sheet and the moving arc striking sheet, a group of magnetic blow-out arc extinguishing systems are respectively arranged on two sides of the corresponding arc striking grooves on the shell, and two groups of magnetic blow-out arc assembly and the stationary arc striking sheet assembly, And a magnetic blow-out arc striking channel is formed between the movable arc striking plates and is communicated between the movable contact and the arc extinguishing chamber.
2. The N-pole switching module of an autoreclosing miniature circuit breaker of claim 1 further comprising: the magnetic blow-out piece subassembly including set up magnetic blow-out piece on shells inner wall, stack at the last arc piece that separates of magnetic blow-out piece, the casing on be provided with the joint post, the joint post pass through the through-hole and the block of magnetic blow-out piece at the card downthehole that separates the arc piece, and constitute the joint cooperation of magnetic blow-out piece subassembly and casing.
3. The N-pole switching module of an auto-reclosing miniature circuit breaker according to claim 1 or 2, characterized in that: the arc extinguishing chamber including setting up arc-insulating cover in the casing, a plurality of interval arrangement set up the arc extinguishing bars piece in arc-insulating cover, the one end of a plurality of arc extinguishing bars piece extend outside arc-insulating cover, and the one end of a plurality of arc extinguishing bars pieces is provided with the arc extinguishing groove that the magnetism blows the striking channel and is linked together.
4. The N-pole switching module of an autoreclosing miniature circuit breaker of claim 3 further characterized in that: the tail part of the other end of the movable arc striking piece forms an arc striking angle, and one end of the arc striking angle extends towards the direction of the movable contact and is inserted into the arc extinguishing groove.
5. The N-pole switching module of an auto-reclosing miniature circuit breaker according to claim 1 or 2, characterized in that: one end of the moving contact is bent towards the fixed contact and extends, a bent part penetrating in the magnetic blow arc striking channel is formed, the moving contact matched with the fixed contact is arranged on the bent part, two convex ribs are arranged on the inner wall of the shell corresponding to two sides of the moving contact, and the two convex ribs are respectively enclosed on one side of the two groups of magnetic blow sheet assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120878381.9U CN214505420U (en) | 2021-04-26 | 2021-04-26 | N-pole switch module of automatic reclosing miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120878381.9U CN214505420U (en) | 2021-04-26 | 2021-04-26 | N-pole switch module of automatic reclosing miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214505420U true CN214505420U (en) | 2021-10-26 |
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ID=78203928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120878381.9U Active CN214505420U (en) | 2021-04-26 | 2021-04-26 | N-pole switch module of automatic reclosing miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214505420U (en) |
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2021
- 2021-04-26 CN CN202120878381.9U patent/CN214505420U/en active Active
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