CN210805672U

CN210805672U - External interface linkage mechanism for molded case circuit breaker and circuit breaker

Info

Publication number: CN210805672U
Application number: CN201922102944.0U
Authority: CN
Inventors: 赵轶磊
Original assignee: Shanghai Renmin Electrical Apparatus Works Co Ltd
Current assignee: Shanghai Renmin Electrical Apparatus Works Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-06-19
Anticipated expiration: 2029-11-29

Abstract

The utility model relates to an external interface link gear and circuit breaker for moulded case circuit breaker, the link gear includes first press block, second press block and connecting rod, first press block is connected through the connecting rod with the second press block, first press block is installed on the circuit breaker casing, and exposes the press portion, the second press block is installed inside the circuit breaker casing, the end of second press block and the trip shaft phase-match setting of this circuit breaker; first elasticity that makes first press the briquetting reset is equipped with between first press briquetting and the circuit breaker casing and resets, the second is equipped with between second press briquetting and the circuit breaker casing and makes the second press the second elasticity that the briquetting reset and reset. The linkage mechanism provides an external linkage interface for the molded case circuit breaker, so that the external function module of the circuit breaker can indirectly control the tripping of the circuit breaker, and the use safety of the circuit breaker is effectively ensured.

Description

External interface linkage mechanism for molded case circuit breaker and circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to an external interface link gear and circuit breaker for moulded case circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition for a predetermined time. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, a motor and the like, automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, has the function equivalent to the combination of a fuse type switch, an over-under-heat relay and the like, and generally does not need to change parts after breaking fault current.

In the circuit breaker, when need set up some external function module usually, for example electric leakage module, need provide corresponding outside linkage interface for moulded case circuit breaker after setting up external function module to make the tripping of external function module indirect control circuit breaker, effectively guarantee the safe in utilization of circuit breaker, nevertheless simple structure, the convenient outside interface link gear of action still do not appear at present, especially to 63A shell frame circuit breaker, because circuit breaker compact structure, be difficult to realize effectual link gear that arranges.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an external interface link gear and circuit breaker for moulded case circuit breaker in order to solve above-mentioned problem, this simple structure, action are reliable, are favorable to arranging this link gear in the circuit breaker casing of complicacy, effectively realize the quick transmission purpose.

The purpose of the utility model is realized through the following technical scheme:

an external interface linkage mechanism for a molded case circuit breaker comprises a first pressing block, a second pressing block and a connecting rod, wherein the first pressing block and the second pressing block are connected through the connecting rod; first elasticity that makes first press the briquetting reset is equipped with between first press briquetting and the circuit breaker casing and resets, the second is equipped with between second press briquetting and the circuit breaker casing and makes the second press the second elasticity that the briquetting reset and reset.

Furthermore, the connecting rod is a Z-shaped rod, one end of the connecting rod is connected with the first pressing block, and the other end of the connecting rod is connected with the second pressing block, so that the first pressing block and the second pressing block synchronously act.

Furthermore, the first pressing block is a rectangular block, a first convex stop block is arranged on the upper portion of the rectangular block, and the first elastic resetting piece is arranged between the first convex stop block and the circuit breaker shell.

Furthermore, the first convex stop block is a square block, the first elastic reset piece is a compression spring, a first spring guide shaft is further arranged on the first convex stop block, one part of the compression spring is sleeved on the first spring guide shaft, and the other part of the compression spring is abutted against the shell of the circuit breaker.

Furthermore, the second pressing block comprises a second convex stop block at the front end and a second spring guide shaft at the rear end, the second elastic reset piece is a compression spring, one part of the compression spring is sleeved on the second spring guide shaft, and the other part of the compression spring is abutted against the inside of the clamping groove of the circuit breaker shell.

Further, the second convex stop block is cylindrical, a through hole is formed in the bottom of the clamping groove of the circuit breaker shell, the second spring guide shaft penetrates through the through hole, the stop block used for pressing the trip shaft is arranged at the tail end of the second spring guide shaft, and the size of the stop block is larger than that of the through hole and is installed in an interference fit mode.

Furthermore, the abutting block is of an inverted cone structure.

Furthermore, the pressing part of the first pressing block is connected with an external function module to play a role in controlling the circuit breaker to trip.

The utility model discloses a this link gear, when other external function module are connected to the circuit breaker (like electric leakage module), when external module moves, promote this link gear's first according to the briquetting through external module, finally make the second according to the briquetting action, promote circuit breaker mechanism's trip shaft to make circuit breaker mechanism dropout, reach the effect of disconnection main circuit, thereby realize providing the accessible at the circuit breaker rear portion and press the function that the briquetting made the circuit breaker dropout.

Compared with the prior art, the utility model has the advantages of it is following:

(1) the external linkage interface is provided for the molded case circuit breaker, so that the external function module of the circuit breaker can indirectly control the tripping of the circuit breaker, and the use safety of the circuit breaker is effectively ensured.

(2) This simple structure, action are reliable, press the transmission structure of piece and connecting rod through setting up first according to the briquetting, second, are favorable to arranging this link gear in complicated circuit breaker casing, effectively realize the quick transmission purpose, realize providing the accessible at moulded case circuit breaker rear portion and press the function that the briquetting made the circuit breaker dropout.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the linkage mechanism of the present invention installed in a circuit breaker;

fig. 2 is a schematic cross-sectional view of the linkage mechanism of the present invention installed in a circuit breaker;

fig. 3-5 are schematic diagrams of the overall structure of the linkage mechanism of the present invention installed in a circuit breaker;

in the figure:

the linkage mechanism 100, the first pressing block 101, the second pressing block 102, the connecting rod 103, the first elastic resetting piece 104, the second elastic resetting piece 105, the first convex stopping block 1011, the first spring guide shaft 1012, the second convex stopping block 1021, the second spring guide shaft 1022 and the abutting block 1023;

the circuit breaker comprises a circuit breaker body 200, a trip shaft 201, a module support 202, a circuit breaker housing 203 and a circuit board assembly 204.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Examples

Referring to fig. 1 and 2, an external interface linkage mechanism 100 for a molded case circuit breaker includes a first pressing block 101, a second pressing block 102, and a connecting rod 103, wherein the first pressing block 101 and the second pressing block 102 are connected by the connecting rod 103, the connecting rod 103 is a Z-shaped rod, one end of the connecting rod 103 is connected to the first pressing block 101, and the other end is connected to the second pressing block 102, so that the first pressing block 101 and the second pressing block 102 operate synchronously.

The first pressing block 101 is installed on the breaker housing 203 and exposes the pressing portion, the second pressing block 102 is installed inside the breaker housing, and can be installed on the module support 202 when being applied to an intelligent breaker, for example, and the tail end of the second pressing block 102 is matched with the trip shaft 201 of the breaker; a first elastic reset piece 104 for resetting the first pressing block 101 is arranged between the first pressing block 101 and the circuit breaker shell, a second elastic reset piece 105 for resetting the second pressing block 102 is arranged between the second pressing block 102 and the circuit breaker shell, and the circuit breaker body 200 can be controlled to be tripped by pressing the first pressing block 101.

Specifically, as shown in fig. 2, the first pressing block 101 is a rectangular block, a first convex block 1011 is disposed on an upper portion of the rectangular block, the first elastic resetting member 104 is disposed between the first convex block 1011 and the circuit breaker housing 203, the first convex block 1011 is a square block, the first elastic resetting member 104 is a compression spring, a first spring guide shaft 1012 is further disposed on the first convex block 1011, a part of the compression spring is sleeved on the first spring guide shaft 1012, and another part of the compression spring abuts against the circuit breaker housing. The second pressing block 102 includes a second protruding block 1021 at the front end and a second spring guide shaft 1022 at the rear end, the second elastic restoring element 105 is a compression spring, one part of the compression spring is sleeved on the second spring guide shaft 1022, and the other part of the compression spring abuts against the circuit breaker housing slot. The protruding dog 1021 of second is cylindrical, and circuit breaker casing draw-in groove bottom is equipped with the through-hole, and second spring guiding axle 1022 passes this through-hole, and the end setting of second spring guiding axle 1022 is used for pressing the dog 1023 that supports of trip shaft 201, and the size that supports dog 1023 is greater than the through-hole, supports dog 1023 for the back taper structure, leans on interference fit to pack into on module support 202, can not deviate from by oneself.

As fig. 3-5, will the utility model discloses link gear installs in taking intelligent dropout control module's moulded case circuit breaker, and the splenium is connected with external function module according to pressing of first pressing block 101, plays control circuit breaker dropout effect, and circuit board assembly 204 designs into the slotted shape in lower part, avoids producing with the connecting rod and interferes.

Through this link gear, when the circuit breaker connects other external function module (like electric leakage module), when external module moves, external module promotes this link gear's first according to briquetting 101, finally makes the second according to briquetting 102 and promotes the trip shaft 201 of circuit breaker mechanism to make circuit breaker mechanism dropout reach the effect of disconnection main circuit, realize providing the function that the accessible pressed the button and made the circuit breaker dropout at the circuit breaker rear portion.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. An external interface linkage mechanism for a molded case circuit breaker is characterized by comprising a first pressing block (101), a second pressing block (102) and a connecting rod (103), wherein the first pressing block (101) and the second pressing block (102) are connected through the connecting rod (103),

the first pressing block (101) is installed on the shell of the circuit breaker and exposes out of the pressing part, the second pressing block (102) is installed inside the shell of the circuit breaker, and the tail end of the second pressing block (102) is matched with a tripping shaft (201) of the circuit breaker;

be equipped with between first pressing block (101) and the circuit breaker casing and make first pressing block (101) reset first elasticity piece (104) that reset, be equipped with between second pressing block (102) and the circuit breaker casing and make second pressing block (102) reset second elasticity piece (105) that reset.

2. The external interface linkage mechanism for the molded case circuit breaker according to claim 1, wherein the connecting rod (103) is a Z-shaped rod, one end of the connecting rod (103) is connected to the first pressing block (101), and the other end is connected to the second pressing block (102), so that the first pressing block (101) and the second pressing block (102) operate synchronously.

3. The external interface linkage mechanism for the molded case circuit breaker as claimed in claim 1, wherein the first pressing block (101) is a rectangular block, a first convex stop (1011) is disposed at an upper portion of the rectangular block, and the first elastic resetting member (104) is disposed between the first convex stop (1011) and the circuit breaker housing.

4. The external interface linkage mechanism for the molded case circuit breaker as claimed in claim 3, wherein the first convex stop (1011) is a square block, the first elastic restoring member (104) is a compression spring, the first convex stop (1011) is further provided with a first spring guide shaft (1012), a part of the compression spring is sleeved on the first spring guide shaft (1012), and the other part of the compression spring is abutted against the circuit breaker housing.

5. The external interface linkage mechanism for the molded case circuit breaker as claimed in claim 1, wherein the second pressing block (102) comprises a second convex stopper (1021) at a front end and a second spring guide shaft (1022) at a rear end, the second elastic restoring member (105) is a compression spring, a portion of the compression spring is sleeved on the second spring guide shaft (1022), and another portion of the compression spring abuts against the circuit breaker housing slot.

6. The external interface linkage mechanism for the molded case circuit breaker according to claim 5, wherein the second convex stopper (1021) is cylindrical, a through hole is formed at the bottom of the clamping groove of the circuit breaker case, the second spring guide shaft (1022) passes through the through hole, a stop (1023) for pressing the trip shaft (201) is arranged at the end of the second spring guide shaft (1022), and the size of the stop (1023) is larger than that of the through hole.

7. The external interface linkage mechanism for the molded case circuit breaker according to claim 6, wherein the stop (1023) is an inverted cone structure.

8. The external interface linkage mechanism for the molded case circuit breaker according to any one of claims 1-7, wherein the pressing portion of the first pressing block (101) is connected with an external function module to control the circuit breaker to release.

9. A circuit breaker having an external interface linkage as claimed in claim 1.