CN216562975U

CN216562975U - Direct current breaker connection plate short circuit structure

Info

Publication number: CN216562975U
Application number: CN202122740480.3U
Authority: CN
Inventors: 王传国; 顾翔
Original assignee: Hangzhou Zhijiang Switchgear Stock Co Ltd
Current assignee: Shanghai Hua Tong Switchgear Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-05-17
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a direct current breaker connecting plate short circuit structure which comprises a connecting plate serving as a main body, wherein the connecting plate comprises a vertical back plate, two uniformly distributed mounting plates are arranged at the front end of the vertical back plate, the vertical back plate and the mounting plates are integrally shaped, a base mounting position is arranged between the two mounting plates, and heat dissipation structures are respectively arranged on the vertical back plate and the mounting plates. The utility model solves the problem of poor heat dissipation function caused by narrow matching position of the conventional connecting plate and the base of the traditional connector in the prior art. The utility model has the advantages of long service life, high safety and the like.

Description

Direct current breaker connection plate short circuit structure

Technical Field

The utility model relates to the field of circuit breaker structures, in particular to a direct current circuit breaker connecting plate short-circuit structure.

Background

The main structure of the conventional plastic case type circuit breaker is as follows: a conductive system, an arc extinguishing system, an operating mechanism, etc. Conventional circuit breakers are 3-pole and 4-pole profiles, while dc circuit breakers are mostly adapted to use dc circuit systems with multiple poles of the circuit breaker in series. A multi-pole series connection generally connects two stationary contacts by using a connecting plate. The traditional plastic shell type circuit breaker mainly comprises a fixed contact, a connecting plate, a screw and the like. Because conventional connection board and base cooperation position are narrower, are limited by the space and lead to that the connection board is not enough at this position current-carrying capacity, and return circuit resistance grow, and then lead to when the circuit breaker normally works, the product temperature rise can rise, influences product life and security.

SUMMERY OF THE UTILITY MODEL

The utility model provides a direct current breaker connecting plate short-circuit structure with an enhanced heat dissipation function, aiming at overcoming the problem that the conventional connecting plate of a traditional breaker and a base have a narrow matching position to cause poor heat dissipation function in the prior art.

The utility model relates to a direct current breaker connecting plate short circuit structure which comprises a connecting plate serving as a main body, wherein the connecting plate comprises a vertical back plate, two uniformly distributed mounting plates are arranged at the front end of the vertical back plate, the vertical back plate and the mounting plates are integrally shaped, a base mounting position is arranged between the two mounting plates, and heat dissipation structures are respectively arranged on the vertical back plate and the mounting plates.

When the circuit breaker works, the heat dissipation structure can be used for effectively dissipating heat of the connecting plate, so that the service life and the installation performance of the circuit breaker are improved.

Preferably, the heat radiation structure comprises a first heat radiation rib with a plurality of uniform distributions on the upper end surface of the mounting plate, and a second heat radiation rib with a plurality of uniform distributions on the back surface of the vertical back plate.

Through setting up heat dissipation muscle and No. two heat dissipation muscle, form multistage heat radiation structure, improve the radiating effect to improve the life and the installation nature of circuit breaker.

Preferably, the mounting plate is provided with a threaded hole.

When the breaker is installed, the installation plate is fixedly connected with the breaker through the screws and the threaded holes.

Preferably, the bottom of the mounting plate is provided with a buffer groove, and a buffer device for protecting the mounting plate is arranged in the buffer groove.

Preferably, the buffer device comprises fixing plates which are respectively arranged on the left side and the right side of the bottom of the buffer groove, spring pins are arranged at the lower ends of the fixing plates, a buffer plate is arranged at the lower ends of the spring pins, springs are sleeved on the spring pins, and the upper ends and the lower ends of the springs are respectively welded with the upper end of the buffer plate and the lower end of the spring pins.

Preferably, a long pin rod is arranged between the buffer plate and the fixing plate, limiting blocks are arranged at the left end and the right end of the long pin rod respectively, a pin hole used for installing the long pin rod is formed in the center of each limiting block, the bottom of each limiting block is welded with the upper end face of the buffer plate, a second spring is sleeved on the periphery of the long pin rod, compression rings are welded at the left end and the right end of the second spring respectively, push rods are welded at the side ends of the compression rings, rocker arms are hinged to the other ends of the push rods, the other ends of the rocker arms are hinged to one ends of hinge blocks, and the other ends of the hinge blocks are welded with the sides of the fixing plate.

When the installation is carried out, when the screw is screwed tightly, large pressure can be generated between the installation plate and the circuit breaker, the circuit breaker can extrude the buffer plate at the moment, the buffer plate is an insulation plate with good elasticity, the spring pin can extrude the first spring in the extrusion process, impact brought by the circuit breaker can be absorbed in the deformation process of the first spring, when the first spring is compressed, the buffer plate can slightly rise, the rocker arm can drive the push rod and the press ring to extrude the second spring in the rising process, and the multistage buffering function of the utility model is realized through the deformation of the first spring and the second spring, so that the installation plate is protected, and the service life of the utility model is prolonged.

The utility model has the following beneficial effects: long service life and high safety.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the buffering device of the present invention.

Vertical backplate 1, mounting panel 2, base installation position 3, heat dissipation muscle 4, No. two heat dissipation muscle 5, screw hole 6, dashpot 7, fixed plate 8, spring catch 9, buffer board 10, spring 11, long pin rod 12, stopper 13, No. two springs 14, clamping ring 15, push rod 16, rocking arm 17, hinge block 18.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

Example (b): the utility model is further explained according to the attached

drawings

1 and 2, the direct current breaker connecting plate short circuit structure comprises a connecting plate serving as a main body, the connecting plate comprises a vertical back plate 1, two uniformly distributed mounting plates 2 are arranged at the front end of the vertical back plate 1, the vertical back plate 1 and the mounting plates 2 are integrally shaped, a base mounting position 3 is arranged between the two mounting plates 2, and heat dissipation structures are respectively arranged on the vertical back plate 1 and the mounting plates 2.

The heat radiation structure include that 2 up end of mounting panel are equipped with a heat dissipation muscle 4 of a plurality of equipartitions, 1 back of vertical backplate be equipped with No. two heat dissipation muscle 5 of a plurality of equipartitions.

The mounting plate 2 is provided with a threaded hole 6.

Mounting panel 2 bottom open and to have dashpot 7, dashpot 7 in be equipped with the buffer who is used for protecting mounting panel 2.

Buffer including setting up the fixed plate 8 in 7 tank bottoms left and right sides of dashpot respectively, the lower extreme of fixed plate 8 spring catch 9 is equipped with, the 9 lower extremes of spring catch be equipped with buffer board 10, spring catch 9 go up the cover and have a spring 11, the upper and lower end of a spring 11 weld with buffer board 10 upper end and spring catch 9 lower extreme respectively mutually.

Buffer board 10 and fixed plate 8 between be equipped with long pin pole 12, long pin pole 12 about both ends be equipped with stopper 13 respectively, stopper 13 center be equipped with the pinhole that is used for installing long pin pole 12, stopper 13 bottom and buffer board 10 up end weld mutually, long pin pole 12 peripheral cover have No. two springs 14, No. two springs 14 about both ends weld respectively have clamping ring 15, clamping ring 15's side welding have push rod 16, the 16 other ends of push rod articulate have rocking arm 17, rocking arm 17's the other end and hinge block 18 one end articulated mutually, hinge block 18's the other end and fixed plate 8 sides weld mutually.

The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.

Claims

1. The direct current breaker connecting plate short circuit structure comprises a connecting plate as a main body, and is characterized in that the connecting plate comprises a vertical back plate (1), two uniformly distributed mounting plates (2) are arranged at the front end of the vertical back plate (1), the vertical back plate (1) and the mounting plates (2) are integrally shaped, a base mounting position (3) is arranged between the two mounting plates (2), and heat dissipation structures are respectively arranged on the vertical back plate (1) and the mounting plates (2).

2. The short circuit structure of the direct current breaker connecting plate according to claim 1, wherein the heat dissipation structure comprises a mounting plate (2) provided with a plurality of uniformly distributed first heat dissipation ribs (4) on the upper end surface, and a vertical back plate (1) provided with a plurality of uniformly distributed second heat dissipation ribs (5) on the back surface.

3. The short circuit structure of the direct current breaker connecting plate of claim 1, wherein the mounting plate (2) is provided with a threaded hole (6).

4. The short circuit structure of the direct current breaker connecting plate according to claim 1, wherein a buffer groove (7) is formed at the bottom of the mounting plate (2), and a buffer device for protecting the mounting plate (2) is arranged in the buffer groove (7).

5. The short circuit structure of the direct current breaker connecting plate according to claim 4, wherein the buffering device comprises fixing plates (8) respectively arranged at the left side and the right side of the bottom of the buffering groove (7), spring pins (9) are mounted at the lower ends of the fixing plates (8), a buffering plate (10) is arranged at the lower end of each spring pin (9), a first spring (11) is sleeved on each spring pin (9), and the upper end and the lower end of each first spring (11) are respectively welded with the upper end of each buffering plate (10) and the lower end of each spring pin (9).

6. The shorting structure of a DC breaker connection plate according to claim 5, a long pin rod (12) is arranged between the buffer plate (10) and the fixed plate (8), the left end and the right end of the long pin rod (12) are respectively provided with a limiting block (13), the center of the limiting block (13) is provided with a pin hole for installing the long pin rod (12), the bottom of the limiting block (13) is welded with the upper end surface of the buffer plate (10), a second spring (14) is sleeved on the periphery of the long pin rod (12), the left end and the right end of the second spring (14) are respectively welded with a press ring (15), a push rod (16) is welded at the side end of the compression ring (15), the other end of the push rod (16) is hinged with a rocker arm (17), the other end of the rocker arm (17) is hinged with one end of a hinge block (18), the other end of the hinge block (18) is welded with the side edge of the fixed plate (8).