A circuit breaker that saves internal installation space

Abstract

This utility model relates to a circuit breaker that saves internal installation space, including a housing. The housing contains terminals, a terminal block, wires, and a magnetic ring. The wires are soldered to the terminal block. A terminal opening is provided on the housing corresponding to the terminal position. The key feature is that the housing has an installation chamber, in which the terminals and the terminal block are installed. The terminal opening communicates with the installation chamber. An opening for the wires to enter and exit is provided on the side of the installation chamber near the magnetic ring. A welding plate extending towards the terminal opening is provided on the lower end face of the terminal block, and the wires are soldered to the bottom of the welding plate. By adopting the above technical solution, this utility model provides a circuit breaker that saves internal installation space. Soldering the wires to the bottom of the terminal block saves extra internal space in the circuit breaker, allowing for the installation of larger magnetic rings and wires. In daily assembly, the internal components of the circuit breaker will be easier to install into the housing.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a circuit breaker that saves internal installation space. Background Technology

[0002] Circuit breakers are one of the most widely used and crucial protective electrical appliances, ensuring the safety of power supply and use, and playing an indispensable role in safeguarding people's daily lives.

[0003] While ensuring the complete functionality of the circuit breaker, designers often overlook the importance of saving internal space. If this space isn't minimized, components such as wires, magnetic rings, and circuit boards may be difficult to fit into the housing during assembly. Since the wires inside the circuit breaker are connected to the terminal block, and currently soldered to the side of the terminal block, a large clearance is required between the terminal block and the magnetic ring, making it impossible to accommodate larger magnetic rings. Therefore, a space-saving soldering method and a housing design that increases the space available for the magnetic ring are needed to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide a circuit breaker that saves internal installation space. By welding the wires to the bottom of the terminal block, excess space is saved inside the circuit breaker, which can accommodate larger magnetic rings and wires. In daily assembly, the internal components of the circuit breaker will be easier to install into the outer casing.

[0005] The technical solution of this utility model is as follows: A circuit breaker that saves internal installation space includes a housing. The housing contains terminals, a terminal block, wires, and a magnetic ring. The wires are welded to the terminal block. The housing has terminal openings corresponding to the positions of the terminals. The housing has an installation chamber. The terminals and the terminal block are installed in the installation chamber. The terminal openings communicate with the installation chamber. The installation chamber has an opening on the side near the magnetic ring for the wires to enter and exit. The lower end face of the terminal block has a welding plate extending towards the terminal openings. The wires are welded to the bottom of the welding plate.

[0006] By adopting the above technical solution, the wires are soldered to the bottom of the terminal block, which can effectively save the gap between the terminal block and the magnetic ring. This allows for the placement of a larger magnetic ring inside the housing and facilitates assembly. The wires can be inserted into the installation cavity through the opening.

[0007] A further feature of this invention is that an isolation plate is provided inside the housing, the isolation plate is located between the terminal block and the magnetic ring, and the bottom of the isolation plate has an outlet for the wire to pass through.

[0008] With the above-mentioned further design, the insulating plate can isolate the wiring terminals from the magnetic ring, increase the creepage distance, and reduce safety hazards.

[0009] A further feature of this invention is that the side wall of the mounting chamber near the magnetic ring has an inclined surface that slopes away from the magnetic ring.

[0010] With the above-mentioned further design, since the magnetic ring is ring-shaped, the inclined surface can play a role in avoiding interference during the installation of the magnetic ring, making it easier to insert the magnetic ring and avoiding jamming and friction during the installation process, which would affect the specifications of the installed magnetic ring.

[0011] A further feature of this invention is that a limiting wall is provided on the side of the mounting chamber near the magnetic ring, and the isolation plate abuts against the limiting wall.

[0012] With the above-mentioned further design, the limiting wall can support the isolation plate, making it structurally stable.

[0013] A further feature of this invention is that the wiring board includes a horizontal part and a vertical part, the welding plate is integrally formed at the bottom of the vertical part, a positioning boss is provided on the inner side wall of the mounting chamber near the terminal opening, and an extension piece is provided on the horizontal part, the extension piece resting on the positioning boss.

[0014] Further configuration: The mounting chamber is also provided with a support member, and the welding plate abuts against the support member to create a gap between the welding plate and the bottom wall of the mounting chamber for wire insertion.

[0015] The above-mentioned further design provides support for the terminal block, making the structure stable, and thus the wire structure stable. Attached Figure Description

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

[0017] Figure 2 This is a partial cross-sectional view of a specific embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the terminal block and wires in a specific embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of a wiring board according to a specific embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the wires in a specific embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the isolation sheet according to a specific embodiment of the present invention;

[0022] Figure 7 This is a partial schematic diagram of the shell of a specific embodiment of the present utility model;

[0023] Figure 8 A schematic diagram of the installation chamber in a specific embodiment of this utility model;

[0024] Figure 9 This is a schematic diagram of a magnetic ring according to a specific embodiment of the present invention.

[0025] In the diagram, 1 is the housing; 11 is the terminal block; 2 is the terminal block; 3 is the terminal block; 31 is the welding plate; 32 is the horizontal part; 321 is the extension piece; 33 is the vertical part; 4 is the wire; 5 is the magnetic ring; 6 is the mounting chamber; 61 is the opening; 62 is the inclined surface; 63 is the limiting wall; 64 is the positioning boss; 65 is the support; 7 is the isolation piece; and 71 is the cable outlet. Detailed Implementation

[0026] 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.

[0027] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] like Figure 1-9As shown, a circuit breaker that saves internal installation space includes a housing 1 made of plastic. The housing 1 contains terminals 2, a terminal block 3, wires 4, and a magnetic ring 5. The wires 4 are soldered to the terminal block 3. A terminal outlet 11 is provided on the housing 1 corresponding to the position of the terminals 2. An installation chamber 6 is provided on the housing 1, and the terminals 2 and terminal block 3 are installed in the installation chamber 6. The terminal outlet 11 communicates with the installation chamber 6. An opening 61 for the wires 4 to enter and exit is provided on the side of the installation chamber 6 near the magnetic ring 5. The upper end of the installation chamber 6 can also be open for easier access. For the installation of the terminal block 2 and the terminal block 3, the lower end face of the terminal block 3 is provided with a welding plate 31 extending towards the terminal block opening 11. The welding plate 31 is located below the terminal block 2 and is made of metal material. The wire 4 is welded to the bottom of the welding plate 31. Welding the wire 4 to the bottom of the terminal block 3 can effectively save the gap between the terminal block 3 and the magnetic ring 5. Placing the welding position in the installation cavity saves the space for internal installation of the magnetic ring, thereby allowing a larger magnetic ring 5 to be placed in the housing 1 and facilitating assembly. The wire 4 can extend into the installation cavity 6 from the opening 61.

[0031] The housing 1 is provided with an isolation plate 7, which is located between the terminal 2 and the magnetic ring 5. The bottom of the isolation plate 7 has an outlet 71 for the wire 4 to pass through. The isolation plate is made of plastic. The isolation plate 7 can isolate the terminal 2 and the magnetic ring 5, increase the creepage distance, and reduce safety hazards. The wire 4 enters the installation chamber 6 from the outlet 71. The installation chamber 6 is provided with a limiting wall 63 on the side near the magnetic ring 5. The isolation plate 7 abuts against the limiting wall 63. The limiting wall 63 can support the isolation plate 7 and make it structurally stable.

[0032] The installation chamber 6 has an inclined surface 62 on the side wall near the magnetic ring 5, which is inclined away from the magnetic ring 5. Since the magnetic ring 5 is arranged in a ring shape, the inclined surface 62 can play a role in avoiding interference when the magnetic ring 5 is installed, making it easier to put the magnetic ring 5 in and avoiding jamming and friction during the installation of the magnetic ring 5, which would affect the specifications of the installed magnetic ring 5.

[0033] The terminal block 3 includes a horizontal portion 32 and a vertical portion 33. The welding plate 31 is integrally formed at the bottom of the vertical portion 33. The mounting chamber 6 has a positioning boss 64 on its inner sidewall near the terminal opening 11. The horizontal portion 32 has an extension piece 321, which rests on the positioning boss 64. The mounting chamber 6 also has a support member 65. The welding plate 31 abuts against the support member 65 so that the gap between the welding plate 31 and the bottom wall of the mounting chamber 6 for the insertion of the wire 4 provides support for the terminal block 3, making the structure stable, and thus making the wire 4 structurally stable.

Claims

1. A circuit breaker that saves internal installation space, comprising a housing (1), wherein the housing (1) is provided with terminals (2), a terminal block (3), wires (4) and a magnetic ring (5), wherein the wires (4) are soldered to the terminal block (3), and the housing (1) is provided with terminal openings (11) corresponding to the positions of the terminals (2), characterized in that, The housing (1) is provided with an installation chamber (6), the wiring terminal (2) and the wiring board (3) are both installed in the installation chamber (6), the wiring terminal port (11) is connected to the installation chamber (6), the installation chamber (6) is provided with an opening (61) for the wire (4) to enter and exit on the side near the magnetic ring (5), the lower end face of the wiring board (3) is provided with a welding plate (31) extending towards the wiring terminal port (11), and the wire (4) is welded to the bottom of the welding plate (31).

2. The space-saving internal installation circuit breaker according to claim 1, characterized in that The housing (1) is provided with an isolation plate (7), which is located between the terminal (2) and the magnetic ring (5), and the bottom of the isolation plate (7) is provided with an outlet (71) for the wire (4) to pass through.

3. The space-saving internal installation circuit breaker according to claim 1 or 2, characterized in that The mounting chamber (6) has an inclined surface (62) on its side wall near the magnetic ring (5) that is inclined away from the magnetic ring (5).

4. The space-saving internal installation circuit breaker according to claim 2, wherein The installation chamber (6) is provided with a limiting wall (63) on the side near the magnetic ring (5), and the isolation plate (7) abuts against the limiting wall (63).

5. The space-saving internal installation circuit breaker according to claim 1 or 2, characterized in that The terminal block (3) includes a horizontal part (32) and a vertical part (33). The welding plate (31) is integrally formed at the bottom of the vertical part (33). The mounting chamber (6) has a positioning boss (64) on the inner wall near the terminal opening (11). The horizontal part (32) has an extension piece (321) which is mounted on the positioning boss (64).

6. The space-saving internal installation circuit breaker according to claim 1 or 2, characterized in that The installation chamber (6) is also provided with a support member (65), and the welding plate (31) abuts against the support member (65) to make a gap between the welding plate (31) and the bottom wall of the installation chamber (6) for the insertion of the wire (4).

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