CN220526838U

CN220526838U - Leakage circuit breaker

Info

Publication number: CN220526838U
Application number: CN202321784642.6U
Authority: CN
Inventors: 林杰; 程春松; 姚锦华; 陈勇
Original assignee: Fuzhou Dingxin High Voltage Electrical Co ltd; Fujian Cecc Electric Power Technology Co ltd
Current assignee: Fuzhou Dingxin High Voltage Electrical Co ltd; Fujian Cecc Electric Power Technology Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-02-23
Anticipated expiration: 2033-07-10

Abstract

The utility model discloses an electric leakage breaker in the technical field of electric leakage breakers, which comprises a first shell, a second shell, an intermediate substrate, a first breaker unit and a second breaker unit, wherein a control circuit module is arranged in the first shell; the communication module and the control circuit are fixedly installed in a split mode, the communication module is easy to disassemble and the installation and the fixation of the control circuit are not affected, and the breaker body is disassembled, so that the possibility of matching the communication module is provided for different demands of customers; the integrated circuit is miniaturized, and the leakage tripping breaking capacity is improved by combining electronic program control tripping and electromagnetic tripping.

Description

Leakage circuit breaker

Technical Field

The utility model relates to the technical field of leakage circuit breakers, in particular to a leakage circuit breaker.

Background

The leakage circuit breaker has metering and leakage detection functions, and a switch can be automatically disconnected when the leakage current in a circuit exceeds a preset value. The common leakage circuit breakers are classified into a voltage type and a current type, and the current type is classified into an electromagnetic type and an electronic type. The electric leakage circuit breaker comprises a circuit breaker actuating mechanism, a tripping actuating mechanism, a line metering circuit, a control circuit and a communication circuit electric leakage detection unit, wherein after the electric leakage detection unit detects that electric leakage occurs in the circuit, a connecting rod drives a first lock catch of the circuit breaker to act, and breaking tripping is realized through the circuit breaker mechanism. In order to realize wiring convenience, the conventional earth leakage circuit breaker is generally externally connected with a short-distance communication module for data sampling.

1. The communication is realized through the independent integrated communication module, the whole volume is increased by 1P, and the communication module cannot be applied to the existing meter box unit;

2. the communication module integrates the switch body structure, so that the fault maintenance is difficult;

3. the tripping mode of the circuit breaker is single, the traditional electromagnetic tripping and breaking are mainly adopted, and the fault judgment digitization degree is low.

Based on the above, the present utility model has devised an earth leakage breaker to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide an electric leakage breaker, which solves the problems that the whole volume is increased and the communication module is difficult to integrate and maintain due to the fact that communication is realized through an independent integrated communication module in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an electric leakage circuit breaker, includes first casing, second casing, intermediate base plate, first circuit breaker unit and second circuit breaker unit, first casing and second casing lock joint respectively in intermediate base plate both sides, be provided with the control circuit module in the first casing, be equipped with communication module in the intermediate base plate, can dismantle electric connection through the connector between communication module and the control circuit module, set up the communication installation trompil that is used for communication module business turn over on the second casing, be provided with the casing apron that is used for opening or closing communication installation trompil.

Preferably, the communication module is a bluetooth circuit module.

Preferably, the connector is an external bus bar.

Preferably, the first breaker unit is disposed in the first case, and the second breaker unit is disposed in the intermediate substrate.

Preferably, the shell cover plate is buckled with the second shell through a buckling structure.

Preferably, the control circuit module is provided with a communication interface, a power indicator, a setting key and a checking key, and the connector is fixed on the control circuit module.

Preferably, the first casing is internally provided with a leakage sampling coil and a current metering coil which are electrically connected with the control circuit module, a first cable in the first circuit breaker unit passes through the leakage sampling coil and the current metering coil, and a second cable in the second circuit breaker unit passes through the leakage sampling coil.

Preferably, the first breaker unit includes a first handle, a first terminal, a first moving contact, a first trip member, a first indicating member, an arc extinguishing chamber, a first stationary contact, and a first leakage short-circuiting device.

Preferably, the arc extinguishing chamber is contacted with the first terminal through the transition copper sheet, and a fixing part for pressing the transition copper sheet is arranged.

Preferably, the second circuit breaker unit includes a second handle, a second terminal, a second moving contact, a second tripping component, a second indicating component, a second arc extinguishing chamber, a second fixed contact and a second leakage short-circuiting device.

Compared with the prior art, the utility model has the beneficial effects that: the embedded miniaturized communication module can effectively solve the problems of occupying volume and redundant leads of the external communication module;

the communication module and the control circuit are fixedly installed in a split mode, the communication module is easy to disassemble and the installation and the fixation of the control circuit are not affected, and the breaker body is disassembled, so that the possibility of matching the communication module is provided for different demands of customers;

the integrated circuit is miniaturized, and the leakage tripping breaking capacity is improved by combining electronic program control tripping and electromagnetic tripping.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the upper part of the first housing of the present utility model;

FIG. 3 is a partial front view of the first housing of the present utility model;

FIG. 4 is a partial three-dimensional isometric view of a first housing of the utility model;

FIG. 5 is a schematic view showing the structure of the upper part in the first housing in another direction;

FIG. 6 is a schematic diagram of the first moving contact and fixed contact mating structure of the present utility model;

FIG. 7 is a front view of FIG. 5;

fig. 8 is a schematic diagram of a second circuit breaker unit according to the present utility model;

fig. 9 is a schematic view of a second housing structure of the present utility model.

11. A first housing; 12. a second housing; 121. a communication installation opening; 13. an intermediate substrate; 14. a housing cover plate; 141. a buckle structure;

21. a control circuit module; 211. a communication interface; 212. a power indicator light; 213. setting keys; 214. a connector; 22. a leakage sampling coil; 23. a current metering coil; 24. checking a key; 25. a communication module; 31. a fixed rod;

61. a compression spring; 62. a tension spring; 72. a first cable; 73. a flexible wire; 74. a second cable;

A. a first circuit breaker unit; a1, a first indicating component; a2, a first tripping component; a21, protruding points; a3, a first handle; a4, a first moving contact; a41, a first contact; a5, a first terminal; a51, a first fixed contact; a6, transitional copper sheets; a7, an arc extinguishing chamber; a8, a static contact; a81, a third contact; a82, a fourth contact; a9, a leakage short-circuiting device; a11, a first spring mounting structure; a12, a second spring mounting structure; a13, a third spring mounting structure; a14, a fourth spring mounting structure; a15, a bracket;

B. a second circuit breaker unit; b1, a second indicating component; b2, a second tripping component; b3, a second handle; b4, a second moving contact; b41, a second contact; b5, a second terminal; b51, a second fixed contact; b8, a second fixed contact; and B9, a second leakage short-circuiting device.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides an electric leakage circuit breaker, including first casing 11, second casing 12, intermediate base plate 13, first circuit breaker unit A and second circuit breaker unit B, first casing 11 and second casing 12 lock joint respectively in intermediate base plate 13 both sides, be provided with control circuit module 21 in the first casing 11, be equipped with communication module 25 in the intermediate base plate 13, can dismantle electric connection through connector 214 between communication module 25 and the control circuit module 21, set up the communication installation trompil 121 that is used for communication module 25 business turn over on the second casing 12, be provided with the casing apron 14 that is used for opening or closing communication installation trompil 121.

Further, the communication module 25 is a bluetooth circuit module.

Further, the connector 214 is an external bus bar.

Further, a first breaker unit a is provided in the first housing 11, and a second breaker unit B is provided in the intermediate substrate 13.

Further, the housing cover 14 is fastened to the second housing 12 by a fastening structure 141.

Further, the control circuit module 21 is provided with a communication interface 211, a power indicator 212, a setting button 213 and a checking button 24, and the connector 214 is fixed on the control circuit module 21.

Further, the first housing 11 is provided therein with a leakage sampling coil 22 and a current metering coil 23 electrically connected to the control circuit module 21, a first cable 72 in the first circuit breaker unit a passes through the leakage sampling coil 22 and the current metering coil 23, and a second cable 74 in the second circuit breaker unit B passes through the leakage sampling coil 22.

Further, the first circuit breaker unit a includes a first handle A3, a first terminal A5, a first moving contact A4, a first trip member A2, a first indicating member A1, an arc extinguishing chamber A7, a first stationary contact A8, and a first leakage short circuit device A9.

Further, the arc extinguishing chamber A7 is in contact with the first terminal A5 through the transition copper sheet A6, and a fixing part for pressing the transition copper sheet A6 is provided.

Further, the second circuit breaker unit B includes a second handle B3, a second terminal B5, a second moving contact B4, a second trip component B2, a second indicating component B1, a second arc extinguishing chamber B7, a second stationary contact B8, and a second leakage short-circuiting device B9.

One embodiment of the utility model:

comprises a first shell 11, a second shell 12 and an intermediate substrate 13.

A first breaker unit A is arranged in the first shell 11, and comprises a first handle A3, a first terminal A5, a first moving contact A4, a first tripping part A2, a first indicating part A1, a first arc extinguishing chamber A7, a first fixed contact A8 and a first leakage short-circuiting device A9;

the two groups of first terminals A5 are respectively arranged on two sides of the first shell 11, a first spring installation structure A11 is arranged on the first indication part A1, a second spring installation structure A12 is arranged on the first shell 11, a compression spring 61 is arranged between the first spring installation structure A11 and the second spring installation structure A12, a third spring installation structure A13 is arranged on the first indication part A1, a fourth spring installation structure A14 is arranged on the first movable contact A4, a tension spring 62 is arranged between the third spring installation structure A13 and the fourth spring installation structure A14, a first handle A3 is shifted to drive the first indication part A1 through a bracket A15, a first movable contact A4 is driven to drive a first tripping part A2, the first movable contact A4 is contacted with the first terminal A5 through a tension spring 62 on the first indication part A1, a first contact A41 on the first movable contact A4 is connected with a third contact A81 on the first fixed contact A8 through a flexible wire 71, and a fourth contact A82 on the first fixed contact A8 is connected with the first fixed contact A8 through a cable 72 to form a conducting connection point 5;

when the first leakage short-circuiting device A9 acts, the first movable contact A4 is driven by the contraction pull rod A91 and simultaneously drives the first tripping component A2, and the convex point A21 on the first tripping component A2 presses the bracket A15 to drive the first handle A3 and the first indicating component A1 to reset;

the first arc extinguishing chamber A7 is contacted with the first terminal A5 through a transition copper sheet A6, a fixed part groove 61 is formed in the first shell 11, and a screw and a nut are arranged in the fixed part groove A61 and used for pressing the transition copper sheet A6 to ensure stable contact;

a control circuit module 21, an electric leakage sampling coil 22, a current metering coil 23 and a checking button 24 are arranged and installed in the first shell 11;

the control circuit module 21 is provided with a communication interface 211 and a power indicator lamp 212, a setting key 213 is used for communication setting, and an external bus 214 is used for accessing an external circuit;

a cable 72 is passed through the leakage sampling coil 22 and the current metering coil 23 to measure the leakage condition and the current value;

the two elastic sheets of the checking button 24 are respectively connected with the lead wire to the control circuit 21;

the middle base plate 13 is spliced with the first shell 11, wherein the fixed rod 31 passes through the middle base plate 13, the first shell 11 and the second shell 12, so that the first handle A3 and the second handle B3 are rotationally connected to the outer wall of the fixed rod 31;

a second breaker unit B is arranged in the middle substrate 13 and comprises a second handle B3, a second terminal B5, a second moving contact B4, a second tripping part B2, a second indicating part B1, a second fixed contact B8 and a second leakage short-circuiting device B9;

the installation mode of the second circuit breaker unit B is consistent with that of the first circuit breaker unit A, a corresponding compression spring 63 is installed between the second indication component B1 and the middle substrate 13, a corresponding extension spring 64 is installed between the second indication component B1 and the second movable contact B4, a corresponding flexible wire 73 is connected between the second movable contact B4 and the second fixed contact B8, and a cable 74 is connected between the second fixed contact B8 and the second fixed contact B51;

the communication module 25 is arranged on the middle substrate 13, the communication module 25 can adopt a Bluetooth circuit module, the Bluetooth circuit module is connected with the control circuit module 21 through an external bus bar, the external bus bar is fixedly connected with the control circuit module 21, and the external bus bar is detachably and electrically connected with the Bluetooth circuit module;

a cable 74 is threaded through the leakage sampling coil 22 to measure the leakage condition;

the second shell 12 is buckled on the middle substrate 13, and a communication installation opening 121 is formed in the second shell 12 and is used for detaching and installing the Bluetooth circuit module from the outer side; the cover 14 of the second housing 12 is detachably fastened to the second housing 12 by a fastening structure 141.

In the utility model, the electrical equipment is connected with an external power supply through an external control switch.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides an electric leakage circuit breaker, includes first casing (11), second casing (12), intermediate substrate (13), first circuit breaker unit (A) and second circuit breaker unit (B), its characterized in that: the utility model discloses a communication device, including first casing (11) and second casing (12), first casing (11) and second casing (12) are the lock joint respectively in middle base plate (13) both sides, be provided with control circuit module (21) in first casing (11), be equipped with communication module (25) in middle base plate (13), can dismantle electric connection through connector (214) between communication module (25) and control circuit module (21), set up communication installation trompil (121) that are used for communication module (25) business turn over on second casing (12), be provided with casing apron (14) that are used for opening or closed communication installation trompil (121).

2. The earth leakage breaker according to claim 1, characterized in that: the communication module (25) is a Bluetooth circuit module.

3. The earth leakage breaker according to claim 1, characterized in that: the connector (214) is an external bus bar.

4. The earth leakage breaker according to claim 1, characterized in that: the first circuit breaker unit (A) is arranged in the first shell (11), and the second circuit breaker unit (B) is arranged in the middle substrate (13).

5. The earth leakage breaker according to claim 1, characterized in that: the shell cover plate (14) is buckled with the second shell (12) through a buckling structure (141).

6. The earth leakage breaker according to claim 1, characterized in that: the control circuit module (21) is provided with a communication interface (211), a power indicator lamp (212), a setting key (213) and a checking key (24), and the connector (214) is fixed on the control circuit module (21).

7. The earth leakage breaker according to claim 1, characterized in that: the electric leakage sampling coil (22) and the current metering coil (23) which are electrically connected with the control circuit module (21) are arranged in the first shell (11), a first cable (72) in the first circuit breaker unit (A) penetrates through the electric leakage sampling coil (22) and the current metering coil (23), and a second cable (74) in the second circuit breaker unit (B) penetrates through the electric leakage sampling coil (22).

8. The earth leakage breaker according to claim 7, wherein: the first circuit breaker unit (A) comprises a first handle (A3), a first terminal (A5), a first moving contact (A4), a first tripping part (A2), a first indicating part (A1), an arc extinguishing chamber (A7), a first fixed contact (A8) and a first leakage short-circuiting device (A9).

9. The earth leakage breaker according to claim 8, wherein: the arc extinguishing chamber (A7) is contacted with the first terminal (A5) through the transition copper sheet (A6), and a fixing part for pressing the transition copper sheet (A6) is arranged.

10. The earth leakage breaker according to claim 7, wherein: the second circuit breaker unit (B) comprises a second handle (B3), a second terminal (B5), a second moving contact (B4), a second tripping component (B2), a second indicating component (B1), a second arc extinguishing chamber (B7), a second static contact (B8) and a second leakage short-circuiting device (B9).