Circuit breaker capable of collecting temperature of lug plate

Abstract

The utility model discloses a circuit breaker capable of collecting temperature of a lug plate. Mainly solves the problem that the temperature sensor is easy to extrude and displace under the condition that the internal space of an accessory shell is relatively small due to the fact that the temperature sensor is not limited in the conventional installation mode of the temperature sensor of the circuit breaker. The circuit breaker is characterized in that the circuit breaker further comprises a wiring assembly which is arranged on the circuit breaker shell and comprises a wiring frame (31) and a wiring sheet (32), and a wiring groove (33) is formed between the inner wall of the wiring frame and the wiring sheet; the temperature measuring resistor (34) comprises a temperature sensing end (341) and a connecting end (342), the connecting end is used for being connected with the circuit board, and the temperature sensing end is in contact with the lug plate; and the limiting groove (11) is arranged on the circuit breaker shell, and the inner wall of the limiting groove (11) is in limiting fit with at least two outer walls of the temperature sensing end. According to the circuit breaker capable of collecting the temperature of the lug plate, the temperature sensor can be limited, displacement is prevented, and the overall structure is compact and simple.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to a circuit breaker capable of collecting the temperature of a wiring piece. Background Art

[0002] A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions and can close, carry and interrupt current under abnormal circuit conditions within a specified time.

[0003] As shown in the Chinese patent publication number CN110459448A, there is currently a circuit breaker with a leakage protection module accessory on the market, whose circuit board can obtain the temperature signal of the wiring piece on the contact piece, but it does not disclose how the temperature sensor obtains the temperature of the wiring piece. In the conventional installation method, the temperature sensor has no limit, and when the internal space of the accessory shell is small, it is easy to be squeezed and displaced. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides a leakage protection switch with a terminal isolation protection structure, which mainly solves the problem that the temperature sensor of the conventional circuit breaker has no limit in the temperature sensor installation method, and is prone to extrusion and displacement when the internal space of the accessory shell is small.

[0005] The technical solution of the utility model is:

[0006] A circuit breaker capable of collecting the temperature of a wiring piece comprises a circuit breaker housing and an accessory housing, wherein a contact mechanism and an operating structure are arranged in the circuit breaker housing, and a leakage protection mechanism is arranged in the accessory housing, wherein the leakage protection mechanism comprises a circuit board and a mutual inductor; and

[0007] A wiring assembly is arranged on the circuit breaker housing, comprising a wiring frame and a wiring piece, wherein a wiring groove is formed between the inner wall of the wiring frame and the wiring piece;

[0008] A temperature measuring resistor, comprising a temperature sensing end and a connecting end, wherein the connecting end is used to be connected to the circuit board, and the temperature sensing end is in contact with the wiring piece;

[0009] The limiting groove is arranged on the circuit breaker housing, and the inner wall of the limiting groove forms a limiting fit with at least two outer walls of the temperature sensing end.

[0010] The connection end is connected to the circuit board by welding.

[0011] The surface of the temperature sensing end in contact with the circuit board is a plane.

[0012] The circuit breaker housing is provided with a second wiring slot for a wire to extend into, and the limiting slot penetrates through the side wall of the circuit breaker housing and is communicated with the second wiring slot.

[0013] The circuit breaker housing is provided with a sinking groove communicated with the limiting groove, and the sinking groove is used for part of the connecting end to extend into.

[0014] A buffer pad made of elastic material is arranged on the circuit board, one end of the temperature sensing end contacts the buffer pad, and the other end contacts the wiring piece.

[0015] The buffer pad is bonded to the circuit board.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a circuit breaker capable of collecting the temperature of a wiring piece, can limit the temperature sensor to prevent displacement, and has a relatively compact and simple overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is an exploded schematic diagram of an embodiment of the utility model.

[0018] Figure 2 for Figure 1 A magnified schematic diagram of center A.

[0019] Figure 3 It is a partial three-dimensional schematic diagram of an embodiment of the utility model.

[0020] Figure 4 It is a partial three-dimensional schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings: as shown in the figure, a circuit breaker capable of collecting the temperature of a wiring piece comprises a circuit breaker housing 1 and an accessory housing 2, wherein a contact mechanism and an operating structure are arranged in the circuit breaker housing, and a leakage protection mechanism is arranged in the accessory housing, wherein the leakage protection mechanism comprises a circuit board 21 and a mutual inductor 22; further comprising a wiring assembly, arranged on the circuit breaker housing, comprising a wiring frame 31 and a wiring piece 32, wherein a wiring groove 33 is formed between the inner wall of the wiring frame and the wiring piece; a temperature measuring resistor 34, comprising a temperature sensing end 341 and a connecting end 342, wherein the connecting end is used to be connected to the circuit board, and the temperature sensing end is in contact with the wiring piece; a limiting groove 11 is arranged on the circuit breaker housing, wherein the inner wall thereof forms a limiting fit with at least two outer walls of the temperature sensing end. After installation, the front end face of the temperature sensing resistor (NTC) contacts the wiring piece, the rear end face contacts the buffer piece, the inner walls on the left and right sides cooperate with the limit grooves, the overall installation structure is stable, and there will be no displacement or misalignment. The connection end can be directly welded to the circuit board by welding. How the wiring frame cooperates with the wiring piece for wiring is an existing technology and will not be repeated here.

[0022] In this embodiment, as shown in the figure, the connection end is connected to the circuit board by welding.

[0023] In this embodiment, as shown in the figure, the surface of the temperature sensing end in contact with the circuit board is a plane, which can better sense temperature.

[0024] In this embodiment, as shown in the figure, the circuit breaker housing is provided with a second wiring slot 12 for the wire to extend into, and the limit slot is provided through the side wall of the circuit breaker housing and communicates with the second wiring slot. The wire passes through the second wiring slot and is connected to the wiring slot.

[0025] In this embodiment, as shown in the figure, the circuit breaker housing is provided with a sinking groove 13 connected with the limiting groove, and the sinking groove is used for part of the connecting end to extend into, and is used to accommodate part of the connecting end, and the structure is relatively compact.

[0026] In this embodiment, as shown in the figure, a buffer pad 211 made of elastic material is provided on the circuit board, one end of the temperature sensing end contacts the buffer pad, and the other end contacts the wiring piece. The buffer pad can be made of rubber or the like.

[0027] In this embodiment, the buffer pad is bonded to the circuit board, making installation more convenient.

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] The embodiments described with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims

1. A circuit breaker capable of collecting lug temperature, comprising a circuit breaker housing (1) and an accessory housing (2), wherein a contact mechanism and an operating structure are arranged in the circuit breaker housing, and a leakage protection mechanism is arranged in the accessory housing, wherein the leakage protection mechanism comprises a circuit board (21) and a mutual inductor (22); characterized in that: Also includes A wiring assembly, arranged on the circuit breaker housing, comprising a wiring frame (31) and a wiring piece (32), wherein a wiring groove (33) is formed between the inner wall of the wiring frame and the wiring piece; A temperature measuring resistor (34), comprising a temperature sensing end (341) and a connecting end (342), wherein the connecting end is used to be connected to the circuit board, and the temperature sensing end is in contact with the wiring sheet; A limiting groove (11) is provided on the circuit breaker housing, and an inner wall thereof forms a limiting fit with at least two outer walls of the temperature sensing end.

2. A circuit breaker capable of collecting lug temperature according to claim 1, characterized in that: The connection end is connected to the circuit board by welding.

3. A circuit breaker capable of collecting lug temperature according to claim 1, characterized in that: The surface of the temperature sensing end in contact with the circuit board is a plane.

4. A circuit breaker capable of collecting lug temperature according to claim 1, characterized in that: The circuit breaker housing is provided with a second wiring slot (12) for a wire to extend into, and the limit slot penetrates the side wall of the circuit breaker housing and is in communication with the second wiring slot.

5. A circuit breaker capable of collecting lug temperature according to claim 4, characterized in that: The circuit breaker housing is provided with a sink groove (13) which is in communication with the limiting groove, and the sink groove is used for a portion of the connecting end to extend into.

6. A circuit breaker capable of collecting lug temperature according to claim 1, characterized in that: The circuit board is provided with a buffer pad (211) made of elastic material, one end of the temperature sensing end is in contact with the buffer pad, and the other end is in contact with the wiring sheet.

7. A circuit breaker capable of collecting lug temperature according to claim 6, characterized in that: The buffer pad is bonded to the circuit board.

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