Binding post protection structure of circuit breaker

Abstract

The utility model relates to a wiring terminal protection structure of a circuit breaker, which comprises a shell, a wiring terminal is arranged in the shell, the end face of the shell is provided with a threading port corresponding to the wiring terminal, the wiring terminal comprises a wiring board and a wiring frame, and the wiring frame can move up and down so as to be matched with the wiring board to fasten or loosen a wire. A protective door is arranged at the upper end or the lower end of the wiring frame, and the protective door moves up and down along with the wiring frame so as to shield or open the threading opening. And the threading port is shielded by the protective door, so that an effective protective barrier is formed.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a protection structure for the wiring terminals of a circuit breaker. Background Technology

[0002] Circuit breakers are widely used and crucial protective electrical appliances that ensure the safety of power supply and consumption, playing an indispensable role in safeguarding people's daily lives. While ensuring the complete functionality of circuit breakers, designers often overlook the importance of terminal block protection. In daily use, the terminals are often notched, making them susceptible to foreign objects falling in and damaging the circuit breaker terminals, leading to abnormal circuit operation. Furthermore, accidental contact with exposed terminals can cause electric shock accidents, compromising equipment and personal safety. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art by providing a protection structure for the wiring terminals of a circuit breaker, which forms an effective protective barrier by shielding the wiring openings with a protective door.

[0004] The technical solution of this utility model is as follows: a terminal protection structure for a circuit breaker, including a housing, a terminal inside the housing, and a wire passage opening corresponding to the terminal on the end face of the housing. The terminal includes a terminal block and a terminal frame. The terminal frame can move up and down to cooperate with the terminal block to fasten or loosen the wire. A protective door is provided at the upper or lower end of the terminal frame. The protective door moves up and down with the terminal frame to cover or open the wire passage opening.

[0005] By adopting the above technical solution, the protective door can move together with the wiring frame, and the protective door can cover the wiring opening, thereby preventing foreign objects from falling in and accidental contact, forming an effective protective barrier.

[0006] A further feature of this invention is that the protective door has wing plates on both sides, and the two wing plates are detachably connected to the two outer sides of the wiring frame.

[0007] With the above-mentioned further design, the connection between the two wing plates is stable and easy to assemble and disassemble.

[0008] A further feature of this invention is that a pair of pins are provided on one side of the two wing plates to be connected to the pins on the side wall of the wiring frame, or a pair of pins are provided on the two wing plates to be connected to the pins on the side wall of the wiring frame.

[0009] With the above-mentioned further design, the plug-in connection operation is convenient, and the two wing plates are spaced apart to facilitate slight deformation, so as to quickly insert the plug into the corresponding socket.

[0010] A further feature of this invention is that the outer casing has a terminal chamber for accommodating wiring terminals, and a pair of guide grooves are provided on the opposite side of the terminal chamber, with two wing plates movable up and down and mounted in the pair of guide grooves.

[0011] With the above-mentioned further design, two wing plates are used in conjunction with guide grooves to guide the vertical movement, thereby preventing the connecting frame from rotating.

[0012] A further feature of this invention is that the protective door is insulated.

[0013] With the above-mentioned further modifications, the protection against electric shock is even better.

[0014] A further feature of this invention is that the wiring frame has holes at both ends for inserting wires, and a screw is screwed onto the upper end of the wiring frame. The protective door is located at the lower end of the wiring frame and extends downwards.

[0015] With the above-mentioned further configuration, after the wire is inserted into the wiring frame, the screw drives the wiring frame to move upward, so that the wiring board and the lower end of the wiring frame can be engaged to secure the wire, and the protective door moves upward to the inside of the wire passage, thereby blocking the wire passage. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a specific embodiment of the present utility model;

[0017] Figure 2 This is an internal structural diagram of a specific embodiment of the present utility model;

[0018] Figure 3 This is a diagram showing the internal structure of the outer shell of a specific embodiment of this utility model;

[0019] Figure 4 This is an assembly diagram of the wiring terminals and the protective door in a specific embodiment of this utility model;

[0020] Figure 5 This is a structural diagram of the wiring frame in a specific embodiment of the present utility model;

[0021] Figure 6 This is a structural diagram of the protective door in a specific embodiment of the present utility model.

[0022] In the diagram: outer casing 1, wiring port 11, terminal chamber 12, guide groove 121, wiring terminal 2, wiring board 21, wiring frame 22, protective door 3, wing plate 31, plug post 41, and socket 42. Detailed Implementation

[0023] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figure 1-6 As shown, this utility model discloses a terminal protection structure for a circuit breaker, including a housing 1. A terminal block 2 is located inside the housing, and each of the front and rear ends of the housing has a corresponding wire-passing port 11. The terminal block 2 includes a terminal plate 21 and a terminal frame 22. The terminal frame 22 has holes at both ends for inserting wires. The terminal plate 21 is also inserted into the terminal frame 22, and the terminal frame 22 is screwed in. Tightening the screw causes the terminal frame 22 to move up and down. This up-and-down movement of the terminal frame 22 engages with the terminal plate 21 to secure or release the wires. A protective door 3 is provided at the upper or lower end of the terminal frame 22. The protective door 3 is made of insulating material to achieve insulation. The protective door 3 covers or opens the wire-passing port 11 as the terminal frame moves up and down. Specifically, a screw is screwed in at the upper end of the terminal frame 22, and the protective door 3 is located at the lower end of the terminal frame 22 and extends downwards. When the terminal frame 22 moves upwards, it engages with the terminal plate 21 to secure the wires, and the protective door 3 covers the wire-passing port 11. Alternatively, the lower end of the wiring frame 22 can be screwed with screws, and the protective door 3 can be located at the upper end of the wiring frame 22.

[0025] Specifically, the protective door 3 has wing plates 31 fixedly or integrally installed on both sides, and the two wing plates 31 are detachably connected to the two outer sides of the wiring frame 22. A pair of insertion posts 41 are provided on the opposite side of the two wing plates 31 for insertion into the insertion holes 42 on the side wall of the wiring frame 22, or a pair of insertion holes 42 are provided on the two wing plates 31 for insertion into the insertion posts 41 on the side wall of the wiring frame 22. Alternatively, the wing plates can be connected to the wiring frame by clips or screws. Of course, the protective door 3 can also be directly welded, screwed, or clipped to the lower end of the wiring frame. The outer casing 1 has a terminal chamber 12 for accommodating the wiring terminals 2, and a pair of guide grooves 121 are provided on the opposite side of the terminal chamber 12. The two wing plates 31 are movably mounted within the pair of guide grooves 121. The wire through-hole 11 communicates with the terminal chamber 12.

[0026] During assembly, first, the pair of wing plates 31 on both sides of the protective door 2 are placed upwards and fitted onto the outside of the connecting frame 22, and the insert post 41 is inserted into the corresponding insertion hole 42 to achieve assembly with the connecting frame 22. The pair of wing plates 31 can be slightly deformed to facilitate the insertion of the insert post 41 into the insertion hole 42. At this time, the protective door 3 is located below the connecting frame 22. Then, the component is placed into the terminal chamber 12, and the pair of wing plates 31 protruding outwards on both sides of the connecting frame 22 are respectively inserted into the guide groove 121.

[0027] When in use, first insert the wire into the wiring frame 22 through the wire insertion port 11, and then tighten the screw to move the wiring frame 22 upward, so that the wiring plate 21 and the lower end of the wiring frame 22 cooperate to secure the wire. The protective door 3 also moves upward to the inside of the wire insertion port 11, thereby blocking the wire insertion port 11 and preventing foreign objects from falling in and accidental contact, thus forming an effective protective barrier.

[0028] Loosening the screws will cause the wiring frame 22 to move downwards, thus releasing the wires. The protective door 3 will also move downwards and away from the wire hole 11, thereby opening the wire hole 11 for easy wiring.

[0029] It should be noted that in the description of this utility model, all directional indicators (such as up, down, forward, backward, etc.) are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A terminal protection structure for a circuit breaker, comprising a housing (1), wherein a terminal block (2) is provided inside the housing, and the end face of the housing has a wire through-hole (11) corresponding to the terminal block, the terminal block (2) comprising a terminal block (21) and a terminal frame (22), the terminal frame (22) being movable up and down to cooperate with the terminal block (21) to fasten or loosen the wire, characterized in that: A protective door (3) is provided at the upper or lower end of the wiring frame (22). The protective door (3) moves up and down with the wiring frame to cover or open the wire passage (11).

2. The terminal protection structure of the circuit breaker according to claim 1, characterized in that: The protective door (3) has wing plates (31) on both sides, and the two wing plates (31) are detachably connected to the two outer sides of the wiring frame (22).

3. The terminal protection structure of the circuit breaker according to claim 2, characterized in that: A pair of pins (41) are provided on the opposite side of the two wing plates (31) for plugging into the pin holes (42) on the side wall of the wiring frame (22), or a pair of pin holes (42) are provided on the two wing plates (31) for plugging into the pins (41) on the side wall of the wiring frame (22).

4. The terminal protection structure of the circuit breaker according to claim 2, characterized in that: The housing (1) has a terminal chamber (12) for accommodating the wiring terminals (2), and a pair of guide grooves (121) are provided on the opposite side of the terminal chamber (12). Two wing plates (31) are mounted in the pair of guide grooves (121) and can move up and down.

5. The terminal protection structure of the circuit breaker according to claim 1, 2, 3, or 4, characterized in that: The protective door (3) is insulated.

6. The terminal protection structure of the circuit breaker according to claim 1, 2, 3, or 4, characterized in that: The wiring frame (22) has holes at both ends for inserting wires, and screws are screwed onto the upper end of the wiring frame (22). The protective door (3) is located at the lower end of the wiring frame (22) and extends downward.

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