A double screw terminal type circuit breaker

Abstract

The utility model discloses a kind of double screw wiring formula circuit breaker, including circuit breaker, the inside of circuit breaker is equipped with wiring terminal subassembly;The wiring terminal subassembly includes fixed plate, and first chuck and second chuck are equipped on the fixed plate;Screw rod is equipped on the first chuck and the second chuck;The first chuck and the second chuck face the one side of fixed plate is equipped with semicylindrical convex, and the one side of fixed plate facing the convex is also equipped with antiskid groove.Because two chuck are installed on fixed plate, so that the equipment can have two fixed points simultaneously, further make wire under the action of two chuck and can be more stablely fixed in wiring terminal subassembly, to avoid circuit failure and other problems due to poor contact;Especially, fixed plate is equipped with antiskid groove, chuck is equipped with cylindrical convex, so that while guaranteeing wire being reliably fixed also can reduce the clamping injury of chuck and fixed plate to wire.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically a double-screw-connected circuit breaker. Background Technology

[0002] Conventional circuit breakers on the market use a single-column wiring structure to connect the conductors, which has the defect of loose wiring. This often leads to fires caused by circuit faults due to loose wiring. Therefore, a dual-column miniature circuit breaker was developed to solve this technical problem. Utility Model Content

[0003] The purpose of this invention is to provide a double-screw-connected circuit breaker to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double-screw-connected circuit breaker, comprising a circuit breaker, wherein the circuit breaker has a terminal assembly inside; the terminal assembly includes a fixing plate, and the fixing plate is provided with a first clamp and a second clamp; both the first clamp and the second clamp are provided with screws; the side of the first clamp and the second clamp facing the fixing plate is provided with a semi-cylindrical protrusion, and the side of the fixing plate facing the protrusion is also provided with an anti-slip groove.

[0005] As a preferred technical solution of this utility model: the inner wall surface of the circuit breaker is further provided with a first groove and a second groove; wherein, one end of the fixing plate is connected to the first groove, and the other end of the fixing plate is connected to the second groove.

[0006] As a preferred technical solution of this utility model: the outer wall surface of the circuit breaker is further provided with a first mounting seat and a second mounting seat, and both the first mounting seat and the second mounting seat are provided with a retaining plate; the structure of the first mounting seat and the second mounting seat is the same.

[0007] As a preferred technical solution of this utility model: the card plate is slidably engaged with the sliding groove provided on the second mounting base by a slider; the card plate is also provided with a slot, and a hook is provided in the slot, which hooks onto the limiting block provided on the second mounting base to fix the card plate on the second mounting base.

[0008] As a preferred technical solution of this utility model: the second mounting base is further provided with a first limiting part and a second limiting part, and the card plate moves between the first limiting part and the second limiting part through the hook plate.

[0009] As a preferred technical solution of this utility model: the first limiting part is further provided with an inclined surface, and the hook plate is guided into the space between the first limiting part and the second limiting part through the inclined surface.

[0010] As a preferred technical solution of this utility model: the card plate is also provided with a socket, and the side of the socket facing the circuit breaker is also provided with a protrusion.

[0011] The beneficial effects of this utility model by adopting the above technical solution are as follows: Since two clamps are installed on the fixing plate and the first and second clamps are moved on the fixing plate by the screw, the device can have two fixing points at the same time. This allows the wire to be more stably fixed in the terminal assembly under the action of the two clamps, so as to avoid circuit failures and other problems caused by poor contact. In particular, the fixing plate is provided with anti-slip grooves and the clamps are provided with cylindrical protrusions. Therefore, while ensuring that the wire is reliably fixed, it can also reduce the clamping damage to the wire caused by the clamps and the fixing plate. Attached Figure Description

[0012] Figure 1 This is an exploded view of the main structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the circuit breaker housing of this utility model;

[0014] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0015] Figure 4 for Figure 2 A magnified view of a portion of point B in the middle;

[0016] Figure 5 This is a schematic diagram of the main structure of the terminal block assembly of this utility model;

[0017] Figure 6 This is a cross-sectional structural diagram of the terminal block assembly of this utility model;

[0018] Figure 7 This is an exploded view of the circuit breaker and the card plate of this utility model;

[0019] Figure 8 for Figure 7 A magnified view of a portion of point C in the middle;

[0020] Figure 9 This is a schematic diagram of the main structure of the card plate of this utility model.

[0021] In the diagram: 1. Circuit breaker; 2. Terminal block assembly; 20. Fixing plate; 21. First clamp; 22. Second clamp; 23. Screw; 24. Protrusion; 25. Anti-slip groove; 3. First groove; 4. Second groove; 5. First mounting base; 6. Second mounting base; 60. First limiting part; 61. Inclined surface; 62. Limiting block; 63. Second limiting part; 64. Slide groove; 7. Clamping plate; 70. Insertion hole; 71. Protrusion; 72. Hook body; 73. Groove; 74. Hook plate; 75. Slider. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.

[0023] Please see Figure 1-9 This utility model provides an embodiment of a double-screw-connected circuit breaker, including a circuit breaker 1, the circuit breaker 1 having a terminal assembly 2 inside; the terminal assembly 2 includes a fixing plate 20, and the fixing plate 20 is provided with a first clamp 21 and a second clamp 22; both the first clamp 21 and the second clamp 22 are provided with screws 23; the side of the first clamp 21 and the second clamp 22 facing the fixing plate 20 is provided with a semi-cylindrical protrusion 24, and the side of the fixing plate 20 facing the protrusion 24 is also provided with an anti-slip groove 25.

[0024] In summary, by installing two clamps on the fixing plate 20 and using the screw 23 to move the first clamp 21 and the second clamp 22 on the fixing plate 20, the device can have two fixing points at the same time. This allows the wires to be more stably fixed in the terminal assembly 2 under the action of the two clamps, thus avoiding circuit failures due to poor contact. In particular, the fixing plate 20 is provided with anti-slip grooves 25 and the clamps are provided with cylindrical protrusions 24, which not only ensures that the wires are reliably fixed, but also reduces the clamping damage to the wires caused by the clamps and the fixing plate.

[0025] Furthermore, since the inner wall surface of the circuit breaker 1 is also provided with a first groove 3 and a second groove 4; wherein one end of the fixing plate 20 is connected to the first groove 3 and the other end of the fixing plate 20 is connected to the second groove 4, the terminal assembly 2 can be stably and reliably fixed inside the circuit breaker 1, and it is also convenient to disassemble and assemble the terminal assembly 2.

[0026] Based on the above scheme, the outer wall surface of the circuit breaker 1 is also provided with a first mounting base 5 and a second mounting base 6, and both the first mounting base 5 and the second mounting base 6 are provided with a retaining plate 7; the structure of the first mounting base 5 and the second mounting base 6 is the same. Therefore, both sides of the circuit breaker 1 can be connected to the fixed base through the retaining plate 7, thereby allowing the retaining plate 7 to be separated from the fixed base at either end when the circuit breaker 1 is disassembled, so as to facilitate the rapid disassembly and assembly of the circuit breaker 1 in confined spaces.

[0027] Furthermore, the card plate 7 slides in conjunction with the sliding groove 64 on the second mounting base 6 via a slider 75; the card plate 7 also has a slot 73, and a hook 72 is provided in the slot 73, which hooks onto the limiting block 62 on the second mounting base 6 to fix the card plate 7 to the second mounting base 6. Therefore, when the hook 72 on the card plate 7 hooks onto the limiting block 62, the card plate 7 can be stably positioned on the first mounting base 5 and the second mounting base 6 without external force, so that the circuit breaker 1 can be stably and reliably fixed on the mounting base.

[0028] To expand the movement space of the card plate 7, the second mounting base 6 is also provided with a first limiting part 60 and a second limiting part 63, and the card plate 7 moves between the first limiting part 60 and the second limiting part 63 by means of a hook plate 74. Therefore, by using the two limiting parts to restrict the movement of the hook plate 74, the card plate 7 has sufficient movement space on the corresponding mounting base, thereby facilitating the complete separation of the card plate 7 from the fixed base.

[0029] In addition, since the first limiting part 60 is also provided with an inclined surface 61, and the hook plate 74 is guided into the space between the first limiting part 60 and the second limiting part 63 through the inclined surface 61, the installation of the card plate 7 is simple and convenient.

[0030] Furthermore, since the card plate 7 is also provided with a socket 70, and the side of the socket 70 facing the circuit breaker 1 is also provided with a protrusion 71, it is convenient to insert a screwdriver into the socket 70 to make the card plate 7 move. At the same time, the protrusion 71 makes the contact surface between the card plate 7 and the screwdriver larger, which not only prevents the screwdriver from slipping, but also enhances the structural strength of the card plate 7 and prevents the card plate 7 from being broken by the screwdriver.

[0031] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A double-screw-connected circuit breaker, characterized in that: Includes a circuit breaker (1), the circuit breaker (1) having a terminal block assembly (2) inside; The terminal assembly (2) includes a fixing plate (20), and the fixing plate (20) is provided with a first clamp (21) and a second clamp (22); both the first clamp (21) and the second clamp (22) are provided with screws (23); The first clamp (21) and the second clamp (22) have a semi-cylindrical protrusion (24) on the side facing the fixed plate (20), and the fixed plate (20) also has an anti-slip groove (25) on the side facing the protrusion (24).

2. A double-screw-connected circuit breaker according to claim 1, characterized in that: The inner wall surface of the circuit breaker (1) is also provided with a first groove (3) and a second groove (4); wherein, one end of the fixing plate (20) is connected to the first groove (3), and the other end of the fixing plate (20) is connected to the second groove (4).

3. A double-screw-connected circuit breaker according to claim 1 or 2, characterized in that: The outer wall of the circuit breaker (1) is also provided with a first mounting base (5) and a second mounting base (6), and both the first mounting base (5) and the second mounting base (6) are provided with a retaining plate (7); the first mounting base (5) and the second mounting base (6) have the same structure.

4. A double-screw-connected circuit breaker according to claim 3, characterized in that: The card plate (7) is slidably engaged with the sliding groove (64) provided on the second mounting base (6) by a slider (75); the card plate (7) is also provided with a slot (73), and a hook (72) is provided in the slot (73), and the hook (72) hooks onto the limiting block (62) provided on the second mounting base (6) to fix the card plate (7) on the second mounting base (6).

5. A double-screw-connected circuit breaker according to claim 4, characterized in that: The second mounting base (6) is also provided with a first limiting part (60) and a second limiting part (63), and the card plate (7) moves between the first limiting part (60) and the second limiting part (63) by means of the hook plate (74).

6. A double-screw-connected circuit breaker according to claim 5, characterized in that: The first limiting part (60) is also provided with an inclined surface (61), and the hook plate (74) is guided to enter between the first limiting part (60) and the second limiting part (63) through the inclined surface (61).

7. A double-screw-connected circuit breaker according to claim 6, characterized in that: The card plate (7) is also provided with a socket (70), and the side of the socket (70) facing the circuit breaker (1) is also provided with a protrusion (71).

Images