Power taking mechanism of molded case circuit breaker

Abstract

The utility model discloses an electricity taking mechanism of a molded case circuit breaker, which comprises a base and a middle seat connected to the base, a circuit board is arranged on the middle seat, one side of the circuit board facing the base is fixedly connected with at least one wiring pin, the middle seat is provided with inserting buckles corresponding to the positions of the wiring pins, and after the base is connected with the middle seat, the inserting buckles are inserted into the wiring pins. Each wiring pin is inserted into the corresponding plug-in buckle to achieve electricity taking of the circuit board, each plug-in buckle comprises a bottom piece and elastic pieces which are fixedly or integrally arranged on the two sides of the upper portion of the bottom piece, each wiring pin is inserted into a gap between the two elastic pieces and abuts against the elastic pieces, and the side portion of the bottom piece is connected with a wire piece. According to the utility model, through the arrangement of the power taking structure of the wiring pins and the buckles, when the middle seat and the base are assembled, the wiring pins are inserted into the corresponding buckles, so that the power taking of the circuit board on the middle seat can be realized, the relatively complicated wiring structure of welding wires on the traditional circuit board and arranging the wires in the molded case circuit breaker is effectively replaced, and the installation and the power taking are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, and more specifically to a power supply mechanism for a molded case circuit breaker. Background Art

[0002] When a circuit board is provided inside an existing molded case circuit breaker, the circuit board is usually powered by drawing power from a main circuit, thereby forming a power supply function for the circuit board.

[0003] Conventional technology connects the circuit board to the main circuit via wires, where one end is soldered to the circuit board and the other end is electrically connected to the main circuit. This connection method requires multiple soldering steps, increasing the number of soldering operations and resulting in low efficiency. The circuit board also needs to be secured to the housing during subsequent installation, making installation more inconvenient and requiring consideration of the space occupied by the wires. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art and has a reasonable structural design. By providing a power-taking structure of wiring pins and plug buckles, when the middle seat and the base are assembled, the wiring pins are inserted into the corresponding plug buckles to realize power taking of the circuit board on the middle seat, effectively replacing the traditional welding wires on the circuit board and the relatively complex wiring structure of the wires inside the molded case circuit breaker. The utility model is easy to install and convenient to take power.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A power supply mechanism for a molded case circuit breaker includes a base and a middle base connected to the base. A circuit board is provided on the middle base. At least one connection pin is fixedly connected to the side of the circuit board facing the base. A buckle is provided on the middle base at a position corresponding to each connection pin. After the base and the middle base are connected, each connection pin is inserted into the corresponding buckle to realize power supply to the circuit board.

[0007] By adopting the above technical solution and providing a matching structure of the connection pins and the plug buckles, the middle seat is fixedly connected to the base during assembly, so that the connection pins are inserted into the corresponding plug buckles, and the electrical connection between the two is achieved. In this way, power can be taken from the circuit board on the middle seat, effectively replacing the welding wires on the traditional circuit board and the more complicated wiring structure of the wires inside the molded case circuit breaker, which is easy to install and convenient to take power.

[0008] Preferably, the buckle includes a bottom plate and elastic plates fixed or integrally provided on both sides above the bottom plate, the connecting pins are inserted into the gap between the two elastic plates and abut against the elastic plates, and the sides of the bottom plate are connected to the wire plates.

[0009] By adopting the above technical solution, by adopting the structure of the bottom plate and elastic plates on both sides of the buckle, when the connecting pin is inserted, the two elastic plates can maintain effective abutment with the connecting pin, so that there is a stable electrical connection between the buckle and the connecting pin, and by fixing or integrally providing a wire sheet on the side of the bottom plate, the wire sheet can accommodate, position and guide the wire connected to the buckle, making the wiring more reasonable.

[0010] Preferably, a positioning column block is provided on the periphery of the buckle, a side placement opening is provided on the side of the positioning column block, a through hole for the wiring pin to pass through is provided on the top of the positioning column block, a positioning column hole for accommodating the positioning column block is provided on the base, and the buckle is positioned and installed in the positioning column block.

[0011] By adopting the above technical solution, the side placement opening is provided for the buckle to be installed into the positioning column block, and the through hole is provided for the wiring pin to pass through and be smoothly inserted into the buckle. After the buckle is installed in the positioning column block, the positioning column block is assembled into the positioning column hole, so that the buckle can be located on the base.

[0012] Preferably, a limiting block is fixedly provided in the positioning column block, and the bottom plate of the buckle is positioned between the limiting block and the bottom surface of the positioning column block.

[0013] By adopting the above technical solution, during installation, the bottom film is inserted between the bottom surface of the limit block and the positioning column block, so that the buckle can be tightly positioned in the positioning column block, which is convenient to install and has stable positioning. The limit block can be set as an integral part of the positioning column block.

[0014] Preferably, an inserting column is provided at the bottom of the positioning column block, and a socket matching the inserting column is provided in the positioning column hole.

[0015] By adopting the above technical solution and setting it up in this way, during assembly, the positioning column block can be positioned and installed in the positioning column hole by inserting the plug column into the corresponding plug hole, which is convenient for installation.

[0016] Preferably, a terminal is provided at the bottom of the base, a wire groove is provided on the side of the base at the terminal, a wire through hole connected to the guide groove is provided on the positioning column hole, and the buckle is connected to the terminal through the wire.

[0017] By adopting the above technical solution, the buckle is electrically connected to the terminal through a wire, and then electrically connected to the buckle through the wiring pin, so as to realize the internal power supply of the circuit board. By setting the wire groove and the guide groove, the wires connected to the buckle can be reasonably routed and laid out, preventing the problem of low internal space utilization due to unreasonable wire layout.

[0018] Preferably, there are two connecting pins and two inserting buckles respectively, and the two inserting buckles are arranged at intervals.

[0019] By adopting the above technical solution, the two buckles are arranged on the base at a certain distance, which can effectively increase the creepage distance and ensure electrical safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a specific embodiment of the utility model reflecting the positioning column block located on the base;

[0021] Figure 2 This is a schematic diagram of the structure of the base according to a specific embodiment of the present invention;

[0022] Figure 3 This is a structural diagram of a specific embodiment of the utility model reflecting the buckle being located on a positioning column block;

[0023] Figure 4 This is a schematic diagram of the structure of the buckle according to a specific embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of a positioning column block according to a specific embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the middle seat in the specific embodiment of the utility model. Figure 1 ;

[0026] Figure 7 This is a schematic diagram of the structure of the middle seat in the specific embodiment of the utility model. Figure 2 ;

[0027] Figure 8 This is a schematic diagram showing the structure of a circuit board and connection pins according to a specific embodiment of the present utility model;

[0028] Figure 9 This is a schematic diagram of the assembly of the base and the middle seat in a specific embodiment of the utility model.

[0029] In the figure: 1. Base; 11. Positioning column hole; 12. Socket; 13. Terminal; 14. Wire groove; 15. Wire through hole; 2. Middle seat; 3. Circuit board; 4. Wiring pin; 5. Buckle; 51. Bottom film; 52. Elastic sheet; 53. Wire sheet; 6. Positioning column block; 61. Side placement port; 62. Through hole; 63. Limit block; 64. Socket. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figure 1-9 As shown, a power supply mechanism for a molded case circuit breaker includes a base 1 and a middle base 2 connected to the base 1. A circuit board 3 is provided on the middle base 2. At least one connection pin 4 is fixedly connected to the side of the circuit board 3 facing the base 1. A buckle 5 is provided on the middle base 2 corresponding to each connection pin 4. After the base 1 and the middle base 2 are connected, each connection pin 4 is inserted into the corresponding buckle 5 to realize power supply to the circuit board 3.

[0032] By adopting the above technical solution and providing a matching structure of the connection pins 4 and the plug buckles 5, during assembly, the middle seat 2 is fixedly connected to the base 1, so that the connection pins 4 are inserted into the corresponding plug buckles 5, and the electrical connection between the two is achieved. In this way, power can be taken from the circuit board 3 on the middle seat 2, effectively replacing the traditional welding of wires on the circuit board 3, and the relatively complex wiring structure of the wires inside the molded case circuit breaker, which is easy to install and convenient to take power.

[0033] In addition, the buckle 5 includes a bottom film 51 and elastic sheets 52 fixed or integrally provided on both sides above the bottom film 51. The terminal pin 4 is inserted into the gap between the two elastic sheets 52 and abuts against the elastic sheets 52. The side of the bottom film 51 is connected to a wire sheet 53. By adopting the structure of the bottom film 51 and the elastic sheets 52 on both sides of the buckle 5, when the terminal pin 4 is inserted, the two elastic sheets 52 can maintain effective abutment with the terminal pin 4, so that there is a stable electrical connection between the buckle 5 and the terminal pin 4. In addition, by fixing or integrally providing the wire sheet 53 on the side of the bottom film 51, the wire sheet 53 can accommodate, position and guide the wire connected to the buckle 5, and the wiring is more reasonable.

[0034] A positioning column block 6 is provided on the outer periphery of the buckle 5, a side placement opening 61 is provided on the side of the positioning column block 6, a through hole 62 for the wiring pin 4 to pass through is provided on the top of the positioning column block 6, and a positioning column hole 11 for accommodating the positioning column block 6 is provided on the base 1. The buckle 5 is positioned and installed in the positioning column block 6. The setting of the side placement opening 61 is used for the buckle 5 to be installed into the positioning column block 6, and the setting of the through hole 62 is used for the wiring pin 4 to pass through and be smoothly inserted into the buckle 5. After the buckle 5 is installed in the positioning column block 6, the positioning column block 6 is assembled into the positioning column hole 11, so that the buckle 5 can be located on the base 1.

[0035] A limiting block 63 is fixedly provided in the positioning column block 6, and the bottom film 51 of the buckle 5 is positioned between the limiting block 63 and the bottom surface of the positioning column block 6. During installation, the bottom film 51 is inserted between the limiting block 63 and the bottom surface of the positioning column block 6, so that the buckle 5 can be tightly positioned in the positioning column block 6, which is convenient for installation and stable in positioning. The limiting block 63 can be set as an integral part of the positioning column block 6.

[0036] Among them, a plug column 64 is provided at the bottom of the positioning column block 6, and a socket 12 matching the plug column 64 is provided in the positioning column hole 11. In this way, when assembling, the plug column 64 is inserted into the corresponding socket 12 to realize the positioning of the positioning column block 6 and install it in the positioning column hole 11, which is convenient for installation.

[0037] Specifically, a terminal 13 is provided at the bottom of the base 1, a wire groove 14 is provided on the side of the terminal 13 on the base 1, a wire through-hole 15 connected to the guide groove is provided on the positioning column hole 11, and the buckle 5 is connected to the terminal 13 through a wire. The buckle 5 is specifically electrically connected to the terminal 13 through a wire, and then electrically connected to the buckle 5 through the wiring pin 4, so as to realize the internal power supply of the circuit board 3. By setting the wire groove 14 and the guide groove, the wires connected to the buckle 5 can be reasonably routed and laid out to prevent the problem of low internal space utilization due to unreasonable wire layout.

[0038] In addition, there are two corresponding connection pins 4 and two buckles 5, and the two buckles 5 are arranged at intervals. In this way, the two buckles 5 are arranged on the base 1 at a certain distance, which can effectively increase the creepage distance and ensure electrical safety.

[0039] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power supply mechanism for a molded case circuit breaker, comprising a base (1) and a middle base (2) connected to the base (1), wherein a circuit board (3) is provided on the middle base (2), characterized in that: At least one connection pin (4) is fixedly connected to a side of the circuit board (3) facing the base (1), and a plug buckle (5) is provided on the middle seat (2) at a position corresponding to each connection pin (4). After the base (1) and the middle seat (2) are connected, each connection pin (4) is inserted into the corresponding plug buckle (5) to realize power supply to the circuit board (3).

2. The power supply mechanism of a molded case circuit breaker according to claim 1, characterized in that: The buckle (5) comprises a bottom plate (51) and elastic plates (52) fixed or integrally arranged on both sides above the bottom plate (51); the connecting pin (4) is inserted into the gap between the two elastic plates (52) and abuts against the elastic plates (52); and the side of the bottom plate (51) is connected to a wire plate (53).

3. The power supply mechanism of a molded case circuit breaker according to claim 2, characterized in that: A positioning column block (6) is provided on the periphery of the plug buckle (5), a side placement opening (61) is provided on the side of the positioning column block (6), a through hole (62) for the connection pin (4) to pass through is provided on the top of the positioning column block (6), a positioning column hole (11) for accommodating the positioning column block (6) is provided on the base (1), and the plug buckle (5) is positioned and installed in the positioning column block (6).

4. The power supply mechanism of a molded case circuit breaker according to claim 3, characterized in that: A limiting block (63) is fixedly provided in the positioning column block (6), and the bottom plate (51) of the buckle (5) is positioned between the limiting block (63) and the bottom surface of the positioning column block (6).

5. The power taking mechanism of a molded case circuit breaker according to claim 3 or 4, characterized in that: The bottom of the positioning column block (6) is provided with an inserting column (64), and the positioning column hole (11) is provided with an inserting hole (12) matched with the inserting column (64).

6. The power supply mechanism of a molded case circuit breaker according to claim 5, characterized in that: The bottom of the base (1) is provided with a wiring terminal (13), the side of the base (1) is provided with a wire groove (14), the positioning column hole (11) is provided with a wire through hole (15) connected to the guide groove, and the plug buckle (5) is connected to the wiring terminal (13) through a wire.

7. A power supply mechanism for a molded case circuit breaker according to claim 1, 2 or 3, characterized in that: Two connection pins (4) and two insertion buckles (5) are correspondingly provided, and the two insertion buckles (5) are arranged at intervals.

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