Circuit breaker convenient to assemble

Abstract

The utility model provides a breaker convenient to assemble, which comprises a base, an operating mechanism and an upper cover, the base is connected with the upper cover, the operating mechanism is positioned between the base and the upper cover, the operating mechanism comprises a trip coil and a test assembly, the base is provided with a circuit board, the test assembly comprises a test button, a test moving plate and a test conductive shaft, the circuit board is provided with a mounting slot for inserting the test moving plate, the test moving plate comprises an inserting part connected with the mounting slot, a connecting part matched with the test button and an extending part arranged above the test conductive shaft, the test button penetrates through the upper cover and is in sliding connection with the upper cover, and the connecting part is arranged below the test button; the two ends of the connecting part are respectively connected with the plugging part and the extension part, and the test conductive shaft and the trip coil are respectively connected with the circuit board. By the adoption of the technical scheme, rapid assembly is achieved by being connected with the installation insertion groove of the circuit board in an inserted mode, assembly is convenient, and assembly efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to a circuit breaker which is convenient to assemble. Background Art

[0002] A leakage circuit breaker is a switch that automatically operates when the leakage current in a circuit exceeds a predetermined value. Commonly used leakage circuit breakers are divided into two types: voltage type and current type. The current type is further divided into electromagnetic type and electronic type. Leakage circuit breakers are used to prevent personal electric shock and should be selected based on the different requirements of direct contact and indirect contact electric shock protection. However, the structure of existing leakage protectors is relatively complex.

[0003] The existing leakage circuit breaker is also provided with a test component for testing its circuit-breaking capacity during leakage, but the inspection component needs to set a connecting rod between the circuit board and the tripping coil, and then connect an elastic conductive sheet to the connecting rod. One end of the elastic conductive sheet is connected to the circuit board, and the other end is suspended below the detection button. A static contact connected to the circuit board is also provided below the corresponding position of the connecting rod. When the detection button is pressed, the elastic conductive sheet contacts the static contact to connect the circuit and trigger the detection. The structure is too complicated and the assembly is troublesome. Utility Model Content

[0004] Based on the above problems, the utility model aims to provide a circuit breaker that is easy to assemble.

[0005] In view of the above problems, the following technical solutions are provided: a circuit breaker that is easy to assemble, comprising a base, an operating mechanism and an upper cover, wherein the base is connected to the upper cover, the operating mechanism is located between the base and the upper cover, the operating mechanism comprises a tripping coil and a test assembly, the base is provided with a circuit board, the test assembly comprises a test button, a test movable piece, and a test conductive shaft, the circuit board is provided with a mounting slot for inserting the test movable piece, the test movable piece comprises a plug-in portion connected to the mounting slot, a connecting portion cooperating with the test button, and an extending portion arranged above the test conductive shaft, the test button passes through the upper cover and is slidably connected thereto, the connecting portion is arranged below the test button, the two ends of the connecting portion are respectively connected to the plug-in portion and the extending portion, the test conductive shaft and the tripping coil are respectively connected to the circuit board.

[0006] By adopting the above technical solution, compared with the existing test moving pieces connected by welding or fasteners, the test moving piece is provided with a plug-in portion, and is quickly assembled by plugging into the installation slot of the circuit board. The assembly is convenient and the assembly efficiency is high. When the opening performance of the test leakage circuit breaker needs to be tested, the test button can be pressed. The test button will slide towards the test moving piece on the upper cover until it contacts the test moving piece. After contact, the test button continues to slide. At this time, the connecting portion will be pressed to bend until its extending portion abuts against the lower test conductive shaft and contacts it. After contact, the circuit board will conduct the electrical signal to the test conductive shaft through the test moving piece, and the other end of the test conductive shaft is also connected to the circuit board, thus forming a complete loop. At this time, the trip coil will be triggered when it receives the signal conducted in the complete loop, and the circuit breaker will be opened. The entire test assembly only requires a bent shaft as the test conductive shaft and a flexible piece as the test moving piece, with a simple structure and convenient installation.

[0007] The present utility model is further provided that: the test moving piece is integrally formed, an extending clamping portion is provided at the lower end of the plug-in portion, and a concave portion adapted to the installation slot is formed between the extending clamping portion and the plug-in portion.

[0008] By adopting the above technical solution, the test moving piece is integrally formed, with high stability and low cost. The concave portion is provided for convenient clamping, and the extending clamping portion is provided to increase the depth of the plug-in and further improve the stability of the plug-in.

[0009] The present utility model is further provided that: there are two installation slots, the plug-in portion is arranged in a U shape, the extending clamping portions are respectively arranged on both sides of the plug-in portion, and the distance between the concave portions on both sides is adapted to the distance between the installation slots.

[0010] By adopting the above technical solution, the clamping on both sides has higher stability.

[0011] The present utility model is further provided that: the connecting portion includes a first connecting section, a second connecting section and a third connecting section connected in sequence. The second connecting section is arranged parallel to the plug-in portion. Both ends of the first connecting section are respectively connected to the lower ends of the plug-in portion and the second connecting section and are arranged in an arc shape. The third connecting section is arranged parallel to the upper cover and abuts against the lower end of the test button. The connection between the third connecting section and the second connecting section is provided with a rounded corner. The extending portion is arranged on one side of the third connecting section and is connected to the third connecting section on the same horizontal plane.

[0012] By adopting the above technical solution, the test button slides on the upper cover toward the test movable piece until it contacts the third connecting section. After the contact, the test button continues to slide, and the third connecting section is pressed to bend. Compared with the existing inclination angle setting, the technical solution of the utility model adopts the third connecting section to be arranged parallel to the upper cover and abut against the lower end of the test button, thereby increasing the contact area and reducing the contact distance, making the operation of the test button more labor-saving and more stable. The first connecting section is arranged in an arc shape, and when the connecting part is deformed under pressure, it has a certain elasticity, thereby extending the service life.

[0013] The utility model is further arranged that: the test moving piece is arranged in the middle of the circuit board, and the tripping coil and the test conductive shaft are respectively arranged on both sides of the test moving piece.

[0014] By adopting the above technical solution, compared with the existing test movable plate, tripping coil and test conductive shaft which are all arranged in the middle of the circuit board, which is more crowded and more complicated to assemble, the technical solution of the utility model fully utilizes the space, is convenient for assembly and has high assembly efficiency.

[0015] The utility model is further configured as follows: the test conductive shaft is configured in a cylindrical shape, the test conductive shaft is provided with a mounting portion corresponding to the circuit board, and a mounting hole adapted thereto is provided at a position corresponding to the mounting portion of the circuit board.

[0016] By adopting the above technical solution, quick assembly and positioning are facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model.

[0018] Figure 2 It is a three-dimensional diagram of the internal structure of the utility model.

[0019] Figure 3 It is a partial three-dimensional diagram of the internal structure of the utility model.

[0020] Figure 4 It is a three-dimensional diagram of the test moving piece of the utility model.

[0021] The meaning of the numbers in the figure are: 1. base, 2. upper cover, 3. trip coil, 4. test assembly, 41. test button, 42. test movable piece, 421. plug-in part, 422. connecting part, 4221. first connecting section, 4222. second connecting section, 4223. third connecting section, 423. extension part, 424. extension card part, 425. recess, 43. test conductive shaft, 431. installation part, 5. circuit board, 51. installation slot, 52. installation hole. DETAILED DESCRIPTION

[0022] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0023] Referring to the attached Figure 1-4 , a circuit breaker convenient for assembly, including a base 1, an operating mechanism, and an upper cover 2. The base 1 is connected to the upper cover 2. The operating mechanism is located between the base 1 and the upper cover 2. The operating mechanism includes a tripping coil 3 and a test assembly 4. The base 1 is provided with a circuit board 5. The test assembly 4 includes a test button 41, a test moving piece 42, and a test conductive shaft 43. An installation slot 51 for inserting the test moving piece 42 is provided on the circuit board 5. The test moving piece 42 includes a plugging portion 421 connected to the installation slot 51, a connecting portion 422 cooperating with the test button 41, and an extending portion 423 disposed above the test conductive shaft 43. The test button 41 penetrates through the upper cover 2 and is slidably connected thereto. The connecting portion 422 is disposed below the test button 41. Two ends of the connecting portion 422 are respectively connected to the plugging portion 421 and the extending portion 423. The test conductive shaft 43 and the tripping coil 3 are respectively connected to the circuit board 5.

[0024] In this embodiment, it is further provided that: the test moving piece 42 is integrally formed. An extending clamping portion 424 is provided at the lower end of the plugging portion 421. A concave portion 425 adapted to the installation slot 51 is formed between the extending clamping portion 424 and the plugging portion 421.

[0025] In this embodiment, it is further provided that: there are two installation slots 51. The plugging portion 421 is arranged in a U shape. The extending clamping portions 424 are respectively arranged on both sides of the plugging portion 421. The distance between the two concave portions 425 is adapted to the distance between the installation slots 51.

[0026] In this embodiment, it is further provided that: the connecting portion 422 includes a first connecting section 4221, a second connecting section 4222, and a third connecting section 4223 connected in sequence. The second connecting section 4222 is arranged parallel to the plugging portion 421. Two ends of the first connecting section 4221 are respectively connected to the plugging portion 421 and the lower end of the second connecting section 4222 and are arranged in an arc shape. The third connecting section 4223 is arranged parallel to the upper cover 2 and abuts against the lower end of the test button 41. The connection between the third connecting section 4223 and the second connecting section 4222 is provided with a rounded corner. The extending portion 423 is arranged on one side of the third connecting section 4223 and is connected to the third connecting section 4223 on the same horizontal plane.

[0027] In this embodiment, it is further provided that: the test moving piece 42 is arranged in the middle of the circuit board 5. The tripping coil 3 and the test conductive shaft 43 are respectively arranged on both sides of the test moving piece 42.

[0028] The present embodiment further provides that: the test conductive shaft 43 is cylindrically shaped, the test conductive shaft 43 is provided with a mounting portion 431 corresponding to the circuit board 5, and the circuit board 5 is provided with a mounting hole 52 adapted thereto at a position corresponding to the mounting portion 431.

[0029] Although the present invention uses the terms such as base 1, upper cover 2, tripping coil 3, test assembly 4, test button 41, test movable piece 42, plug-in portion 421, connecting portion 422, first connecting section 4221, second connecting section 4222, third connecting section 4223, extension portion 423, extension clamping portion 424, recess 425, test conductive shaft 43, mounting portion 431, circuit board 5, mounting slot 51, mounting hole 52, etc., the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A circuit breaker that is easy to assemble, characterized in that: It includes a base, an operating mechanism and an upper cover. The base is connected to the upper cover. The operating mechanism is located between the base and the upper cover. The operating mechanism includes a tripping coil and a test assembly. The base is provided with a circuit board. The test assembly includes a test button, a test moving piece and a test conductive shaft. An installation slot for inserting the test moving piece is arranged on the circuit board. The test moving piece includes a plugging part connected to the installation slot, a connecting part cooperating with the test button and an extending part arranged above the test conductive shaft. The test button penetrates through the upper cover and is slidably connected thereto. The connecting part is arranged below the test button. Two ends of the connecting part are respectively connected to the plugging part and the extending part. The test conductive shaft and the tripping coil are respectively connected to the circuit board.

2. A circuit breaker that is easy to assemble according to claim 1, characterized in that: The test moving piece is integrally formed. An extending clamping part is arranged at the lower end of the plugging part. A concave part adapted to the installation slot is formed between the extending clamping part and the plugging part.

3. A circuit breaker that is easy to assemble according to claim 2, characterized in that: There are two installation slots. The plugging part is arranged in a U shape. The extending clamping parts are respectively arranged on both sides of the plugging part. The distance between the concave parts on both sides is adapted to the distance between the installation slots.

4. A circuit breaker that is easy to assemble according to claim 1, characterized in that: The connecting part includes a first connecting section, a second connecting section and a third connecting section which are sequentially connected. The second connecting section is arranged parallel to the plugging part. Two ends of the first connecting section are respectively connected to the plugging part and the lower end of the second connecting section and are arranged in an arc shape. The third connecting section is arranged parallel to the upper cover and abuts against the lower end of the test button. The connection part between the third connecting section and the second connecting section is arranged in a rounded corner shape. The extending part is arranged on one side of the third connecting section and is connected to the third connecting section on the same horizontal plane.

5. A circuit breaker that is easy to assemble according to claim 4, characterized in that: The test moving piece is arranged in the middle of the circuit board. The tripping coil and the test conductive shaft are respectively arranged on both sides of the test moving piece.

6. A circuit breaker that is easy to assemble according to claim 1, characterized in that: The test conductive shaft is arranged in a cylindrical shape. The test conductive shaft is provided with an installation part corresponding to the circuit board. The circuit board is provided with an installation hole adapted to the installation part at the corresponding position.

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