CN213660316U

CN213660316U - Intelligent molded case circuit breaker

Info

Publication number: CN213660316U
Application number: CN202023055133.9U
Authority: CN
Inventors: 夏学志; 周安跃; 王春梅
Original assignee: Huanyu Hi Tech Co ltd
Current assignee: Huanyu Hi Tech Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-07-09
Anticipated expiration: 2030-12-16

Abstract

The utility model relates to a wisdom moulded case circuit breaker, including base, the well lid of setting on the base, set up face lid, operating device, intelligent control module, with operating device linkage complex moving contact, static contact, explosion chamber of covering in, intelligent control module including the backup pad that sets up the holding intracavity of well lid, set up first circuit board in the backup pad, set up the second circuit board in the holding intracavity, set up the carrier communication module on the second circuit board, the face cover and be provided with the mounting hole corresponding carrier communication module department, the mounting hole of face lid in be provided with the flip of shroud on the carrier communication module, the upper end of explosion chamber correspond moving contact department and be provided with the run-on piece, the one end of this run-on piece is bent respectively to the both sides of moving contact and is extended and be formed with two run-on portions. The utility model has the advantages of simple structure, dependable performance, assembly are convenient, rationally distributed, the arc extinguishing is effectual.

Description

Intelligent molded case circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to wisdom moulded case circuit breaker.

Background

At present, the electronic molded case circuit breaker is used for infrequent conversion and motor protection in a circuit with 50Hz alternating current, 690V rated working voltage and 1250A rated current. The circuit breaker has the functions of overload long delay inverse time limit, short circuit short delay fixed time limit, short circuit instant and under-voltage protection, and can protect circuits and power supply equipment from being damaged. Along with the popularization of a smart power grid, a remote control function is arranged on the existing electronic molded case circuit breaker, however, the structural layout design of the intelligent control module of the existing electronic molded case circuit breaker is unreasonable, the intelligent control module is not convenient to assemble with the upper cover, and the intelligent molded case circuit breaker has the defects of complex structure, unreliable performance, inconvenient assembly and poor arc extinguishing effect.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, dependable performance, assembly are convenient, rationally distributed, the effectual wisdom moulded case circuit breaker of arc extinguishing.

In order to achieve the above purpose, the utility model adopts a smart molded case circuit breaker, which comprises a base, a middle cover arranged on the base, a surface cover arranged on the middle cover, an operating mechanism, an intelligent control module, a moving contact, a static contact and an arc extinguish chamber, wherein the moving contact, the static contact and the arc extinguish chamber are in linkage fit with the operating mechanism, the intelligent control module comprises a supporting plate arranged in the accommodating cavity of the middle cover, a first circuit board arranged on the supporting plate, a second circuit board arranged in the accommodating cavity, and a carrier communication module arranged on the second circuit board, the surface cover is provided with a mounting hole corresponding to the carrier communication module, a flip cover covering the carrier communication module is arranged in the mounting hole of the surface cover, the upper end of the arc extinguish chamber is provided with an arc striking sheet corresponding to the moving contact, one end of the arc striking piece is bent and extended towards the two sides of the moving contact respectively and is provided with two arc striking parts.

The beneficial effect of above-mentioned structure is: this intelligent control module's first circuit board sets up in the backup pad, thereby be convenient for the assembly of first circuit board and backup pad, be favorable to improving assembly efficiency, and this intelligent control module's structural layout is reasonable, be favorable to first circuit board, the heat dissipation of second circuit board, and the upper end of explosion chamber is provided with the run-on piece, the run-on piece can be with electric arc introduce the arc extinguishing chamber fast in, be favorable to extinguishing fast of electric arc, thereby this wisdom circuit breaker has simple structure, the dependable performance, it is convenient to assemble, it is rationally distributed, the effectual advantage of plastic shell of arc extinguishing.

Particularly, the backup pad on be provided with a plurality of bracing pieces, a plurality of bracing pieces on be provided with the joint lug respectively, first circuit board on be provided with joint lug matched with joint hole, joint lug block in the joint is downthehole, and constitute the joint cooperation of first circuit board and backup pad. The first circuit board and the supporting plate are connected in a clamping matching mode, so that the first circuit board and the supporting plate can be assembled conveniently, and the assembly efficiency is improved.

Particularly, one end of the flip cover is rotatably arranged in the mounting hole, the other end of the flip cover is respectively provided with a lock hole and an opening convex block, the face cover is provided with a lock ring matched with the lock hole, and the lock hole is clamped on the lock ring and forms the limit matching of the flip cover and the face cover. The upper cover is provided with the catch with flip matched with, but padlock or lead sealing are worn on the catch, can cover flip locking on the face to can avoid other people to open flip at will, the security is higher.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is a perspective view of the embodiment of the present invention with the flip cover removed.

Fig. 3 is a perspective view of the embodiment of the present invention with the cover removed.

Fig. 4 is an internal structure diagram of the embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 4, an embodiment of the present invention is an intelligent molded case circuit breaker, including a base 10, a middle cover 11 disposed on the base 10, a face cover 12 disposed on the middle cover 11, an operating mechanism 13, an intelligent control module 20, a movable contact 14 cooperating with the operating mechanism 13 in a linkage manner, a fixed contact 15, and an arc extinguish chamber 16, wherein the intelligent control module 20 includes a supporting plate 21 disposed in an accommodating cavity 111 of the middle cover 11, a first circuit board 22 disposed on the supporting plate 21, a second circuit board 23 disposed in the accommodating cavity 111, and a carrier communication module 24 disposed on the second circuit board 23, a mounting hole 121 is disposed on the face cover 12 corresponding to the carrier communication module 24, a flip cover 17 covering the carrier communication module 24 is disposed in the mounting hole of the face cover 12, an arc striking plate 161 is disposed on the arc extinguish chamber 16 corresponding to the movable contact 14, one end of the arc striking plate 161 is bent and extended toward both sides of the movable contact 14, and two arc striking portions 162 are formed.

The backup pad 21 on be provided with a plurality of bracing pieces 211, a plurality of bracing pieces 211 on be provided with joint lug 212 respectively, first circuit board 22 on be provided with joint lug 212 matched with joint hole, joint lug 212 block in the joint hole, and constitute the joint cooperation of first circuit board 22 and backup pad 21. The first circuit board and the supporting plate are connected in a clamping matching mode, so that the first circuit board and the supporting plate can be assembled conveniently, and the assembly efficiency is improved. One end of the flip cover 17 is rotatably disposed in the mounting hole 121, the other end of the flip cover 17 is respectively provided with a locking hole 171 and an opening protrusion 172, the face cover 12 is provided with a locking ring 122 engaged with the locking hole 171, and the locking hole 171 is engaged with the locking ring 122 and forms a limit engagement between the flip cover 17 and the face cover 12. The upper cover is provided with the catch with flip matched with, but padlock or lead sealing are worn on the catch, can cover flip locking on the face to can avoid other people to open flip at will, the security is higher.

This intelligent control module's first circuit board sets up in the backup pad, thereby be convenient for the assembly of first circuit board and backup pad, be favorable to improving assembly efficiency, and this intelligent control module's structural layout is reasonable, be favorable to first circuit board, the heat dissipation of second circuit board, and the upper end of explosion chamber is provided with the run-on piece, the run-on piece can be with electric arc introduce the arc extinguishing chamber fast in, be favorable to extinguishing fast of electric arc, thereby this wisdom circuit breaker has simple structure, the dependable performance, it is convenient to assemble, it is rationally distributed, the effectual advantage of plastic shell of arc extinguishing.

Claims

1. The utility model provides a wisdom moulded case circuit breaker, includes the base, sets up well lid on the base, sets up face lid, operating device, intelligent control module on well lid, with operating device linkage complex moving contact, static contact, explosion chamber, its characterized in that: the intelligent control module comprises a supporting plate arranged in a containing cavity of a middle cover, a first circuit board arranged on the supporting plate, a second circuit board arranged in the containing cavity, and a carrier communication module arranged on the second circuit board, wherein a mounting hole is formed in the position, corresponding to the carrier communication module, of the surface cover, a flip cover covering the carrier communication module is arranged in the mounting hole of the surface cover, an arc striking plate is arranged at the position, corresponding to a moving contact, of the upper end of the arc extinguishing chamber, one end of the arc striking plate is bent and extended towards the two sides of the moving contact respectively, and two arc striking parts are formed.

2. The intelligent molded case circuit breaker according to claim 1, wherein: the backup pad on be provided with a plurality of bracing pieces, a plurality of bracing pieces on be provided with the joint lug respectively, first circuit board on be provided with joint lug matched with joint hole, joint lug block downthehole at the joint, and constitute the joint cooperation of first circuit board and backup pad.

3. The intelligent molded case circuit breaker according to claim 1 or 2, wherein: one end of the flip cover is rotatably arranged in the mounting hole, the other end of the flip cover is respectively provided with a lock hole and an opening convex block, the face cover is provided with a lock ring matched with the lock hole, and the lock hole is clamped on the lock ring and forms the limit matching of the flip cover and the face cover.