Test module and circuit breaker

Abstract

The utility model provides a test module and circuit breaker, relates to circuit breaker technical field, the test module includes electronic component board, test button, button spring, trip coil subassembly and magnet ring subassembly, the electronic component board is connected with conductive needle, on the electronic component board is provided with connecting hole, button spring one end is inserted into the connecting hole, and the button spring one end is inserted into the magnet ring subassembly. And the test button is operated, so that the button spring is connected with the conductive needle to form a test path. Compared with the prior art, the circuit breaker has the advantages that the traditional mode of connecting by using a lead is improved, the button spring can be connected with the electronic component board only by using a plug-in mode, the lead is saved, welding spots are reduced, the effects of reducing the cost and improving the assembly efficiency are achieved, and meanwhile, the internal structure of the circuit breaker is simplified to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a test module and a circuit breaker. Background Art

[0002] In the test module of a traditional circuit breaker, leads need to be set between the electronic component board and the test button and the conductive pin respectively. Both ends of each lead need to be welded, which requires four welding points, resulting in low assembly efficiency and high cost of the circuit breaker. In addition, more leads also make the internal structure of the circuit breaker unsophisticated. In view of the above defects, the present application is proposed. Utility Model Content

[0003] The utility model aims to provide a test module and a circuit breaker, which solve the problems of increased cost and low assembly efficiency caused by more lead designs in the test module of the traditional circuit breaker.

[0004] In order to solve the above problems, the utility model provides a test module, including an electronic component board, a test button, a button spring, a trip coil assembly and a magnetic ring assembly, the electronic component board is connected with a conductive pin, the electronic component board is provided with a connecting hole, one end of the button spring is inserted into the connecting hole, and the other end is connected to the test button, and the test button is operated to connect the button spring with the conductive pin to form a test path.

[0005] According to an embodiment of the utility model, there is an interference fit between the button spring and the connecting hole.

[0006] According to an embodiment of the utility model, the button spring and the connecting hole are connected by welding.

[0007] According to an embodiment of the utility model, the button spring and the connecting hole are continuously connected or connected after a test button action.

[0008] According to an embodiment of the utility model, a groove for accommodating a conductive needle is provided on the test button.

[0009] According to an embodiment of the utility model, a cross-shaped groove is provided at the end of the test button, and one end of the button spring is located in the cross-shaped groove.

[0010] According to an embodiment of the utility model, a bent portion is provided at one end of the button spring close to the connecting hole.

[0011] A circuit breaker comprises the above-mentioned test module.

[0012] The beneficial effect of the utility model is that the traditional connection method that requires the use of leads is improved, and the button spring can be connected to the electronic component board only by plugging, which saves leads, reduces solder joints, achieves the effect of reducing costs and improving assembly efficiency, and also plays a certain role in simplifying the internal structure of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the circuit breaker;

[0015] Figure 2 This is a schematic diagram of the structure of the test module. DETAILED DESCRIPTION

[0016] The following description is only used to disclose the utility model so that those skilled in the art can implement the utility model. The embodiments described below are only for example, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other solutions that do not deviate from the spirit and scope of the utility model.

[0017] A test module and a circuit breaker, such as Figure 1 , Figure 2 , including an electronic component board 9, a test button 5, a button spring 7, a trip coil assembly 4 and a magnetic ring assembly 6. A resistor and a conductive pin 92 are connected to the electronic component board 9. A connecting hole 91 is provided on the electronic component board 9. A connecting end 1 72 of the button spring 7 is inserted into the connecting hole 91 for contacting the conductive copper sheet connected to the live wire on the electronic component board 9. The other end, i.e., the connecting end 2 71, is connected to the test button 5. The resistor and the conductive pin 92 are connected to the conductive copper sheet connected to the neutral wire on the electronic component board 9. The test button 5 is operated to connect the button spring 7 to the conductive pin 92 to form a test path, thereby improving the traditional method of connecting by wire. The button spring 7 can be connected to the electronic component board 9 by plugging only, saving wires, reducing solder joints, and achieving the effect of reducing costs and improving assembly efficiency. At the same time, it also plays a certain role in simplifying the internal structure of the circuit breaker.

[0018] Optionally, the button spring 7 and the connecting hole 91 are in interference fit. Furthermore, the connecting end 72 of the button spring 7 can be set to be needle-shaped, which is convenient for insertion and can achieve full contact when there is a certain error in the processing of the connecting hole 91. The button spring 7 is provided with a bending portion 73 near the connecting end 72 to reduce the overall length of the button spring 7 and avoid occupying more length space.

[0019] Optionally, the button spring 7 and the connecting hole 91 are clearance-fitted and connected by welding.

[0020] In this embodiment, the button spring 7 is continuously connected to the connection hole 91 . In other embodiments, it can also be configured that after the test button 5 is operated, the other end of the button spring 7 is actuated to connect to the connection hole 91 .

[0021] Preferably, a groove 51 for accommodating the conductive needle 92 is provided on the test button 5 , and after the test button 5 is pressed, the groove 51 can play a role of guiding and positioning.

[0022] Furthermore, in this embodiment, if Figure 1 A cross-shaped groove is provided at the end of the test button 5, the groove 51 is a longitudinal groove in the cross-shaped groove, and the transverse groove is used to accommodate the connecting end 71 of the button spring 7, which plays an assembly effect.

[0023] When the product is in normal working state, the test button 5 is pressed, and the test button 5 pushes the connection end 71 of the button spring 7, so that the connection end 71 contacts the conductive needle 92, and the circuit of the test device is turned on. At this time, the magnetic ring 6 detects the current imbalance and outputs an induction signal to the electronic component board. The electronic component board can provide a working voltage to the release coil assembly 4 through internal signal operation amplification processing. The electromagnetic force drives the moving iron core to work and push the mechanism lock, the contacts are disconnected, the power is cut off, and the test button 5 is released. Under the action of the button spring 7, the button is reset. With this structural layout design, the internal circuit layout is optimized, two leads are omitted, and workers have to weld four fewer points, saving costs.

[0024] A circuit breaker comprises the above-mentioned test module, and also comprises a contact mechanism 1, a handle operating mechanism 2, a wiring mechanism 3, an arc extinguishing mechanism and the like.

[0025] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed and modified in any way.

Claims

1. A test module, characterized in that: The electronic component board (9) comprises an electronic component board (9), a test button (5), a button spring (7), a trip coil assembly (4) and a magnetic ring assembly (6); the electronic component board (9) is connected to a conductive pin (92); the electronic component board (9) is provided with a connection hole (91); one end of the button spring (7) is inserted into the connection hole (91) and the other end is connected to the test button (5); the test button (5) is operated to connect the button spring (7) to the conductive pin (92) to form a test path.

2. The test module according to claim 1, characterized in that: There is an interference fit between the button spring (7) and the connecting hole (91).

3. The test module according to claim 1, characterized in that: The button spring (7) and the connecting hole (91) are connected by welding.

4. The test module according to claim 1, characterized in that: The button spring (7) and the connection hole (91) are continuously connected or connected after the test button (5) is actuated.

5. The test module according to any one of claims 1 to 4, characterized in that: The test button (5) is provided with a groove (51) for accommodating a conductive needle (92).

6. The test module according to any one of claims 1 to 4, characterized in that: The end of the test button (5) is provided with a cross-shaped groove, and one end of the button spring (7) is located in the cross-shaped groove.

7. The test module according to claim 1, characterized in that: The button spring (7) is provided with a bent portion (73) at one end close to the connecting hole (91).

8. A circuit breaker, characterized in that: A test module comprising any one of claims 1 to 7.

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