WO2019149038A1

WO2019149038A1 - Contact operating mechanism of circuit breaker

Info

Publication number: WO2019149038A1
Application number: PCT/CN2019/070875
Authority: WO
Inventors: 王亮华
Original assignee: 乐清市也为电气有限公司
Priority date: 2018-02-02
Filing date: 2019-01-08
Publication date: 2019-08-08
Also published as: ES2964485T3; AU2019215324B2; CN108198736A; HUE064035T2; EP3748665A1; CN108198736B; AU2019215324A1; EP3748665A4; EP3748665B1

Abstract

Disclosed is a contact operating mechanism of a circuit breaker, wherein a mounting groove (11) is provided on a base (1) and beneath a handle (2), a pressing spring (111) and a sliding block (112) are provided inside the mounting groove (11), one end of the pressing spring (111) abuts against an inner side face of the mounting groove (11) and the other end thereof abuts against the sliding block (112), a pushing rod (113) is provided between the sliding block (112) and a lock catch (5), and a spring (8) applying an elastic force to a movable contact mounting seat (6) is provided between the movable contact mounting seat (6) and a side wall of the base (1).

Description

Contact operating mechanism of circuit breaker

Technical field

The present invention relates to a circuit breaker, and more particularly to a contact operating mechanism within a circuit breaker.

Background technique

The contact operating mechanism of the traditional circuit breaker generates the opening force by pulling the movable contact mounting seat, so that the installation is inconvenient, and the small pulling force has an influence on the opening, and the locking is generated by the torsion spring or the tension spring. Force, this will affect the moving contact opening.

Summary of the invention

The invention overcomes the deficiencies of the prior art, and provides a new type of circuit breaker contact operating mechanism with convenient installation and good opening effect.

In order to realize the above utility model, the technical solution adopted by the present invention is: a contact operating mechanism of a circuit breaker, comprising a base, a handle, a connecting rod, a jumper, a lock, a moving contact mounting seat and a moving contact The lock and the movable contact mounting seat are rotatably disposed on the base, the jumper rotation is disposed on the movable contact mounting seat, the movable contact is fixedly disposed on the movable contact mounting seat, and the connecting rod and the jump buckle are passed through the connecting rod Connecting, the buckle is provided with an abutting foot and a pushing foot, wherein the abutting foot cooperates with the jump buckle, and the pushing foot is corresponding to the tripping device of the circuit breaker, wherein the base is disposed under the handle and disposed a mounting groove is provided in the mounting groove with a pressing spring and a sliding block, one end of the pressing spring is in contact with the inner side surface of the mounting groove, and the other end is in contact with the sliding block, and a push rod is arranged between the sliding block and the buckle A spring that generates an elastic force to the movable contact mounting seat is disposed between the movable contact mounting seat and the side wall of the base.

By adopting the above scheme, the structure of the product is rationally arranged, wherein the above setting is more flexible for the thrust of the lock, and there is no jamming, and the spring is arranged and installed conveniently, in particular, the spring can be set with a large elastic force to make the circuit breaker. The tripping effect is better, and the spring force generated by the spring on the movable contact mounting seat all acts on the movable contact mounting seat, and the opening force is not affected by other components.

According to a further aspect of the present invention, the mounting groove is an elongated mounting groove, and the sliding block is slidably disposed in the mounting groove, and the sliding block is disposed on a side of the pressing spring with a first spring seat, and the sliding block is disposed. The upper end of the block is provided with a connecting hole, and the locking buckle and the movable contact mounting seat are disposed in the base together with a rotating shaft, and the mounting hole is arranged on the locking buckle between the rotating shaft and the abutting foot, and the push rod is movable at one end. It is inserted into the connecting hole and the other end is movably inserted into the mounting hole.

By adopting the above scheme, the push rod can be adjusted in direction when working, so that the elastic force generated by the lock can be well ensured and the work of the circuit breaker can be stabilized.

According to a further aspect of the present invention, the lock and the movable contact mounting seat are disposed in the base together with a rotating shaft, and the movable contact mounting seat is disposed on a side away from the handle and above the rotating shaft. Two spring seats, one end of the spring abuts against the second spring seat, and the other end abuts against the side wall of the base.

By adopting the above scheme, the spring force of the spring acts well on the movable contact mounting seat to ensure the effect of opening the spring.

According to a further aspect of the present invention, the connecting hole of the sliding block is provided with a scalloped notch toward a side of the buckle, and the push rod is inserted into the connecting hole through the scalloped notch.

Further ensure the change of the direction of the push rod force to ensure the stability of the product work.

The final setting of the invention is that: the moving contact mounting seat is provided with a moving contact setting groove, the moving contact setting groove is provided with a protruding column and a slanting hole, and the moving contact is provided with a protruding column and an inclined hole respectively Corresponding fixing holes and oblique through holes, the fixing holes of the moving contacts are placed in the positioning groove, and are fixedly arranged in the positioning groove by hot riveting of the protruding columns.

By adopting the above scheme, it is convenient to set the movable contact, and in the closing process, the spring contacts the static contact and the spring generates pressure on the movable contact mounting seat, and continues to rotate the handle to move the shaft in the inclined hole to generate super Cheng also produces final pressure.

The invention is further described below in conjunction with the drawings.

DRAWINGS

1 is a perspective view of a contact operating mechanism according to an embodiment of the present invention;

2 is a structural diagram of a slip block according to an embodiment of the present invention;

Fig. 3 is a structural view showing a movable contact mounting seat according to an embodiment of the present invention.

Detailed ways

As shown in FIG. 1-3, a contact operating mechanism of a circuit breaker includes a base 1, a handle 2, a connecting rod 3, a jumper 4, a latch 5, a movable contact mounting seat 6, and a movable contact 7. The lock 5 and the movable contact mounting seat 6 are rotatably disposed on the base 1. The jumper 4 is rotatably disposed on the movable contact mounting seat 6, and the movable contact 7 is fixedly disposed on the movable contact mounting seat 6, the handle 2 and The jumpers 4 are connected by a connecting rod 3, and the latching ring 5 is provided with an abutting pin 51 and a pushing leg 52, wherein the abutting foot 51 cooperates with the jumper 4, and the pushing pin 52 is correspondingly arranged with the tripping device of the circuit breaker. The above-mentioned technical features are also common in the prior art, so we have not described in detail in this embodiment. In this embodiment, the mounting groove 11 is disposed on the base 1 and below the handle 2, and the mounting slot is provided. The pressing spring 111 and the sliding block 112 are disposed in the inner side of the mounting groove 11, and the other end is in contact with the sliding block 112, and the sliding block 112 is disposed between the sliding block 112 and the buckle 5. There is a push rod 113, and a spring 8 for generating an elastic force to the movable contact mounting seat 6 is disposed between the movable contact mounting seat 6 and the side wall of the base 1, where The elastic force includes the force for resetting the movable contact mounting seat 6 at the time of opening, and the final pressure of the movable contact mounting seat 6 at the time of closing. By adopting the above scheme, the structural layout of the product is reasonable, wherein the above setting is more flexible for the thrust of the buckle 5, and there is no jamming, and the spring 8 is conveniently arranged and installed, in particular, the spring 8 can be set with a large elastic force. The tripping effect of the circuit breaker is better, and the elastic force generated by the spring 8 on the movable contact mounting seat 6 all acts on the movable contact mounting seat 6, and the breaking force is not affected by other components.

In the embodiment of the present invention, the mounting groove 111 is an elongated mounting groove, the sliding block 112 is slidably disposed in the mounting groove 111, and the sliding block 112 is disposed first on a side of the pressing spring 111. The spring seat 1121, the upper end of the sliding block 112 is provided with a connecting hole 1122. The locking ring 5 and the moving contact mounting seat 6 are rotatably disposed in the base 1 with a rotating shaft, and the locking ring 5 is located on the rotating shaft and is in conflict with the rotating shaft. A mounting hole 511 is defined between the legs 51. One end of the push rod 113 is movably inserted into the connecting hole 1122, and the other end is movably inserted into the mounting hole 511. By adopting the above scheme, the push rod 113 can be adjusted in direction when working, so that the elastic force generated by the buckle 5 can be well ensured, and the work of the circuit breaker is stabilized.

In the embodiment of the present invention, a second spring seat 62 is disposed on a side of the movable contact mounting seat 6 away from the handle 2 and above the rotating shaft. One end of the spring 8 abuts against the second spring seat 62, and the other end In contrast to the side wall of the base 1, generally we can provide a spring fixing platform on the side wall to fix the end of the spring 8; by adopting the above scheme, the elastic force of the spring 8 acts well on the movable contact mounting seat 6. To ensure the effect of its opening.

In the embodiment of the present invention, the connecting hole 1122 of the sliding block 112 is disposed with a scalloped notch 1123 toward the side of the buckle 5. The push rod 113 is inserted into the connecting hole 1122 through the scalloped notch 1123, thereby further ensuring the push rod 113. The change of the direction of the force ensures the stability of the working of the product; the moving contact mounting seat 6 is provided with a moving contact setting groove 61, and the moving contact setting groove 61 is provided with a protruding post 611 and an inclined hole 612, and the movable contact 7 is provided with a fixing block and a diagonal through hole corresponding to the protruding post 611 and the inclined hole 612. The fixing hole of the movable contact 7 is placed in the positioning groove 61 and then fixedly placed in the positioning groove 61 by the hot stud of the protruding post 611, so that It is convenient to set the movable contact 7.

Claims

A contact operating mechanism of a circuit breaker includes a base, a handle, a connecting rod, a jump buckle, a lock buckle, a movable contact mounting seat and a movable contact, wherein the lock and the movable contact mounting seat are rotationally disposed on the base, The jumper is disposed on the movable contact mounting seat, the movable contact is fixedly disposed on the movable contact mounting seat, and the handle and the jump buckle are connected by a connecting rod, wherein the locking buckle is provided with an abutting foot and a pushing foot, wherein The abutting foot cooperates with the jump buckle, and the pushing foot is correspondingly arranged with the tripping device of the circuit breaker, wherein the mounting base is provided with a mounting groove below the handle, and the mounting groove is provided with a pressing spring and a sliding block. One end of the pressing spring is in contact with the inner side surface of the mounting groove, and the other end is in contact with the sliding block. A push rod is disposed between the sliding block and the buckle, and the movable contact mounting seat is disposed between the movable seat mounting seat and the side wall of the base. There is a spring that generates an elastic force to the movable contact mount.
The contact operating mechanism of the circuit breaker according to claim 1, wherein the mounting groove is an elongated mounting groove, and the sliding block is slidably disposed in the mounting groove, and the sliding block faces the pressing spring. The first spring seat is disposed on one side, and the upper end of the sliding block is provided with a connecting hole, and the locking buckle and the movable contact mounting seat are disposed in the base together with a rotating shaft, and the locking buckle is located on the rotating shaft and the abutting foot A mounting hole is arranged between the one end of the push rod and the movable end is inserted into the mounting hole.
The contact operating mechanism of the circuit breaker according to claim 1 or 2, wherein the lock and the movable contact mounting seat are disposed in the base together with a rotating shaft, and the movable contact mounting seat is away from the base. A second spring seat is disposed on one side of the handle and above the rotating shaft. One end of the spring abuts against the second spring seat and the other end abuts against the side wall of the base.
The contact operating mechanism of the circuit breaker according to claim 2, wherein the connecting hole of the sliding block is provided with a scalloped notch toward a side of the locking buckle, and the push rod is inserted into the connecting hole through the scalloped notch.
The contact operating mechanism of the circuit breaker according to claim 1 or 2, wherein the movable contact mounting seat is provided with a moving contact arrangement groove, and the moving contact mounting groove is provided with a protruding column and a slanting hole, The movable contact is provided with a fixing hole and an oblique through hole corresponding to the protruding column and the inclined hole respectively, and the fixing hole of the moving contact is placed in the positioning groove and then fixedly arranged in the positioning groove by hot-staking through the protruding column.