Stable circuit breaker

Abstract

The utility model provides a stable type circuit breaker, which comprises a base, an operating mechanism and an upper cover, the base is connected with the upper cover, the operating mechanism is arranged between the base and the upper cover, the operating mechanism comprises a tripping assembly, the base is provided with a circuit board, and the tripping assembly comprises a mounting seat, a magnet yoke, a coil and a movable iron core. The mounting seat comprises a mounting part connected with the circuit board, a mounting shaft used for mounting the coil and a limiting part arranged at the other end, opposite to the mounting part, of the mounting shaft, a positioning block is arranged on the limiting part, a slot is formed between the mounting part and the circuit board, the magnet yoke is arranged in a [shape, one end of the magnet yoke is inserted into the slot, and the other end of the magnet yoke is provided with a clamping groove matched with the positioning block. According to the technical scheme, compared with an existing tripping assembly which is integrally welded and formed, the technical scheme of the utility model adopts insertion connection, is convenient to assemble, maintain and replace, does not need to be integrally scrapped, is low in maintenance cost, and is higher in stability due to the insertion connection of the two ends of the magnet yoke.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, and particularly relates to a stable circuit breaker. Background Art

[0002] A leakage circuit breaker is a switch that can automatically operate when the leakage current in a circuit exceeds a predetermined value. Commonly used leakage circuit breakers are divided into two categories: voltage type and current type, and 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 according to the different requirements of two types of electric shock protection: direct contact and indirect contact. However, the structure of existing leakage protectors is relatively complex.

[0003] Existing circuit breakers include a base, an upper cover, a switching mechanism, a tripping mechanism, and a circuit board provided on the base. Most existing current tripping devices are integrated. Once damaged, the whole needs to be scrapped and the maintenance cost is high. Content of the Utility Model

[0004] Based on the above problems, the purpose of the utility model is to provide a stable circuit breaker.

[0005] In view of the above problems, the following technical solution is provided: A stable circuit breaker 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 component. The base is provided with a circuit board. The tripping component includes a mounting seat, a yoke, a coil, and a moving iron core. The mounting seat includes a mounting portion connected to the circuit board, a mounting shaft for mounting the coil, and a limiting portion provided at the other end of the mounting shaft relative to the mounting portion. A positioning block is provided on the limiting portion. A slot is formed between the mounting portion and the circuit board. The yoke is arranged in a U shape. One end is inserted into the slot, and the other end is provided with a card slot adapted to the positioning block.

[0006] By adopting the above technical solution, compared with the existing tripping component formed by integral welding, the technical solution of the utility model adopts plug-in connection, which is convenient for assembly, repair and replacement. There is no need to scrap the whole, and the maintenance cost is low. At the same time, both ends of the yoke are plugged in, and the stability is higher.

[0007] The utility model is further provided with: A limiting block for preventing the yoke from moving up and down is arranged on the inner side of the upper cover.

[0008] By adopting the above technical solution, the slot and the card slot limit the yoke in the horizontal direction to prevent it from moving back and forth, left and right. After assembly, the limiting block limits the yoke in the vertical direction to prevent it from moving up and down, further strengthening the stability of its connection.

[0009] The utility model is further configured as follows: the mounting portion is diagonally provided with a mounting recess for mounting an L-shaped connector, the mounting recess is provided with a mounting hole adapted to the L-shaped connector, one end of the L-shaped connector is in contact with the mounting recess, and the other end passes through the mounting hole and is connected to the circuit board.

[0010] By adopting the above technical solution, compared with the existing welding between the mounting base and the circuit board, the technical solution of the utility model uses an L-shaped connector to cooperate with the mounting hole to detachably connect the mounting base and the circuit board, which is convenient for assembly, saves time and labor, and has high assembly efficiency. At the same time, it is simple to disassemble and assemble, and convenient for maintenance. The mounting recess is provided to limit the L-shaped connector, and the stability is high.

[0011] The utility model is further configured as follows: a sliding channel is hollowly provided in the installation shaft, a convex stop block is provided at a position corresponding to the sliding channel in the slot, the convex stop block includes a convex portion provided in the sliding channel, one end of the moving iron core is provided in the sliding channel, and a spring is provided between the convex portion and the moving iron core.

[0012] By adopting the above technical solution, assembly is convenient and stability is higher.

[0013] The utility model is further provided with: a receiving groove is provided on the base, a wiring assembly for connecting the wire is installed in the receiving groove, the wiring assembly includes a first conductive sheet, a second conductive sheet, a clamp and a fastener, the clamp is adapted to the receiving groove, the clamp is connected to the second conductive sheet through the fastener, the first conductive sheet is arranged in a Z shape, the first conductive sheet includes a first connecting section, a second connecting section and a third connecting section which are connected in sequence in a Z shape, the first connecting section is arranged in the clamp and connected to the second conductive sheet, the third connecting section is arranged above the base and fixedly connected through the fastener, and the second connecting section is provided with an abutting portion which abuts against the inner wall of the receiving groove.

[0014] By adopting the above technical solution, compared with the L-shaped conductive sheet, the technical solution of the utility model adopts the cooperative connection of the first conductive sheet and the second conductive sheet, which has higher stability. At the same time, the first conductive sheet includes a Z-shape, the first connecting section is arranged in the clamp and connected to the second conductive sheet, the third connecting section is arranged above the base and fixedly connected by fasteners, and the two ends are fixed, which further improves the stability of the connection.

[0015] The utility model is further configured as follows: the second conductive sheet includes a fourth connecting segment, a fifth connecting segment and a sixth connecting segment which are connected in sequence in a U shape, the fourth connecting segment is arranged between the clamp and the fastener, the sixth connecting segment is inserted into the clamp and connected to the first connecting segment, the sixth connecting segment is arranged in an I-shape, and a limiting clamp portion is arranged at the position of the recess of the first connecting segment corresponding to the sixth connecting segment.

[0016] By adopting the above technical solution, a limit clamping part is provided to clamp the sixth connecting section, which is convenient for disassembly and assembly and has high stability. 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 cross-sectional view of the utility model.

[0021] Figure 5 It is a three-dimensional diagram of the wiring assembly of the present utility model.

[0022] Figure 6 It is an exploded view of the wiring assembly of the present invention.

[0023] Meanings of the numbers in the figure: 1. base, 11. accommodating groove, 2. upper cover, 21. limiting block, 3. trip assembly, 31. mounting seat, 311. mounting portion, 312. mounting shaft, 3121. sliding channel, 313. limiting portion, 32. yoke, 321. clamping groove, 33. coil, 34. moving iron core, 35. positioning block, 36. convex abutment block, 361. convex portion, 37. spring, 4. circuit board, 5. L-shaped connector, 6. wiring assembly, 61. first conductive sheet, 611. first connecting section, 612. second connecting section, 613. third connecting section, 614. abutting portion, 615. limiting clamping portion, 62. second conductive sheet, 621. fourth connecting section, 622. fifth connecting section, 623. sixth connecting section, 63. clamp. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] Reference Figure 1-6, A stable circuit breaker, comprising a base 1, an operating mechanism and an upper cover 2. The base 1 is connected to the upper cover 2, and the operating mechanism is located between the base 1 and the upper cover 2. The operating mechanism includes a tripping component 3. The base 1 is provided with a circuit board 4. The tripping component 3 includes a mounting seat 31, a yoke 32, a coil 33 and a moving iron core 34. The mounting seat 31 includes a mounting portion 311 connected to the circuit board 4, a mounting shaft 312 for mounting the coil 33, and a limiting portion 313 provided at the other end of the mounting shaft 312 relative to the mounting portion 311. A positioning block 35 is provided on the limiting portion 313. A slot is formed between the mounting portion 311 and the circuit board 4. The yoke 32 is arranged in a U shape, one end is inserted into the slot, and the other end is provided with a slot 321 adapted to the positioning block 35.

[0026] In this embodiment, it is further provided that: a limiting block 21 for preventing the yoke 32 from moving up and down is provided inside the upper cover 2.

[0027] In this embodiment, it is further provided that: mounting recesses for mounting L-shaped connectors 5 are diagonally provided on the mounting portion 311. The mounting recesses are provided with mounting holes adapted to the L-shaped connectors 5. One end of the L-shaped connector 5 abuts against the mounting recess, and the other end passes through the mounting hole and is connected to the circuit board 4.

[0028] In this embodiment, it is further provided that: a sliding channel 3121 is provided in the hollow mounting shaft 312. A convex abutting block 36 is provided at a position corresponding to the sliding channel 3121 in the slot. The convex abutting block 36 includes a convex portion 361 provided in the sliding channel 3121. One end of the moving iron core 34 is provided in the sliding channel 3121. A spring 37 is provided between the convex portion 361 and the moving iron core 34.

[0029] In this embodiment, it is further provided that: a receiving groove 11 is formed on the base 1. A wiring component 6 for connecting wires is installed in the receiving groove 11. The wiring component 6 includes a first conductive sheet 61, a second conductive sheet 62, a clamp 63 and a fastener. The clamp 63 is adapted to the receiving groove 11. The clamp 63 is connected to the second conductive sheet 62 through a fastener. The first conductive sheet 61 is arranged in a Z shape. The first conductive sheet 61 includes a first connecting section 611, a second connecting section 612 and a third connecting section 613 that are connected in a Z shape in sequence. The first connecting section 611 is arranged in the clamp 63 and is connected to the second conductive sheet 62. The third connecting section 613 is arranged above the base 1 and is fixedly connected through a fastener. The second connecting section 612 is provided with an abutting portion 614 that abuts against the inner wall of the receiving groove 11.

[0030] This embodiment further provides: the second conductive sheet 62 includes a fourth connecting segment 621, a fifth connecting segment 622 and a sixth connecting segment 623 which are connected in sequence in a U shape, the fourth connecting segment 621 is arranged between the clamp 63 and the fastener, the sixth connecting segment 623 is inserted into the clamp 63 and connected to the first connecting segment 611, the sixth connecting segment 623 is arranged in an I-shape, and a limiting clamping portion 615 is arranged at the position of the recess of the first connecting segment 611 corresponding to the sixth connecting segment 623.

[0031] Although the present invention uses the terms such as base 1, receiving groove 11, upper cover 2, stopper 21, release assembly 3, mounting seat 31, mounting portion 311, mounting shaft 312, sliding channel 3121, stopper 313, yoke 32, clamping groove 321, coil 33, moving iron core 34, positioning block 35, convex abutment block 36, convex portion 361, spring 37, circuit board 4, L-shaped connector 5, wiring assembly 6, first conductive sheet 61, first connecting section 611, second connecting section 612, third connecting section 613, abutting portion 614, stopper 615, second conductive sheet 62, fourth connecting section 621, fifth connecting section 622, sixth connecting section 623, clamp 63, etc. more frequently, 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 stable circuit breaker, 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, and the operating mechanism comprises a trip assembly, characterized in that: The base is provided with a circuit board. The tripping component includes a mounting base, a yoke, a coil and a moving iron core. The mounting base includes a mounting portion connected to the circuit board, a mounting shaft for mounting the coil, and a limiting portion provided at the other end of the mounting shaft opposite to the mounting portion. A positioning block is provided on the limiting portion. A slot is formed between the mounting portion and the circuit board. The yoke is arranged in a U shape, one end is inserted into the slot, and the other end is provided with a clamping groove adapted to the positioning block.

2. A stable circuit breaker according to claim 1, characterized in that: A limiting block for preventing the yoke from moving up and down is provided on the inner side of the upper cover.

3. A stable circuit breaker according to claim 1, characterized in that: Mounting recesses for mounting L-shaped connectors are diagonally provided on the mounting portion. The mounting recesses are provided with mounting holes adapted to the L-shaped connectors. One end of the L-shaped connector abuts against the mounting recess, and the other end passes through the mounting hole and is connected to the circuit board.

4. A stable circuit breaker according to claim 1, characterized in that: The mounting shaft is hollow and provided with a sliding channel. A convex abutting block corresponding to the sliding channel is provided in the slot. The convex abutting block includes a convex portion arranged in the sliding channel. One end of the moving iron core is arranged in the sliding channel. A spring is provided between the convex portion and the moving iron core.

5. A stable circuit breaker according to claim 1, characterized in that: A receiving groove is formed on the base. A wiring component for connecting a wire is installed in the receiving groove. The wiring component includes a first conductive sheet, a second conductive sheet, a clamp and a fastener. The clamp is adapted to the receiving groove. The clamp is connected to the second conductive sheet through the fastener. The first conductive sheet is arranged in a Z shape. The first conductive sheet includes a first connecting section, a second connecting section and a third connecting section which are sequentially connected in a Z shape. The first connecting section is arranged in the clamp and connected to the second conductive sheet. The third connecting section is arranged above the base and fixedly connected through a fastener. The second connecting section is provided with an abutting portion abutting against the inner wall of the receiving groove.

6. A stable circuit breaker according to claim 5, characterized in that: The second conductive sheet includes a fourth connecting section, a fifth connecting section and a sixth connecting section which are sequentially connected in a U shape. The fourth connecting section is arranged between the clamp and the fastener. The sixth connecting section is inserted into the clamp and connected to the first connecting section. The sixth connecting section is arranged in a工字 shape. A limiting clamping portion is provided at the position of the concave portion of the first connecting section corresponding to the sixth connecting section.

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