A plug-in circuit breaker housing structure and circuit breaker

Abstract

The application relates to an insertion type circuit breaker shell structure and a circuit breaker. The circuit breaker shell is a cuboid structure, comprising oppositely arranged front and rear end faces, oppositely arranged left and right side faces, and oppositely arranged upper and lower surfaces. A wire inlet is arranged on the rear end face, an operating part mounting port and a wire outlet are arranged on the front end face, and a wire blocking baffle is arranged in the center of the front end face. The operating part mounting port and the wire outlet are respectively arranged on the upper and lower sides of the wire blocking baffle. Compared with the prior art, the wires of the operating part and the wiring terminal are better separated, the wires are prevented from interfering with the operating part, the defect that the opening and closing movement is not in place is overcome, and the convenience of user operation is improved.

Description

Technical Field

[0001] The present invention relates to the field of miniature circuit breakers, and in particular to a plug-in circuit breaker housing structure and a circuit breaker. Background Art

[0002] In recent years, plug-in circuit breakers have been increasingly used. Especially with the rapid development of the 5G industry, the demand for 5G cabinets is increasing, and the plug-in circuit breakers used with them are increasingly valued by manufacturers.

[0003] The Chinese invention application with publication number CN107993900A discloses a plug-in miniature circuit breaker. This invention application is for the most common plug-in circuit breaker on the market. The plug-in circuit breaker adopts a button-type structure. When the button is pressed, the circuit breaker closes; when the button is pulled out, the circuit breaker opens. However, this structure is prone to the problem of misoperation when the circuit breaker falls out of the cabinet. To solve this problem, the Chinese invention application with application number 202010287069.2 provides a plug-in circuit breaker opening and closing handle mechanism, which controls closing and opening by rotating the handle rocker arm, and operates the locking member by linear movement.

[0004] However, the above structures all have the following drawbacks: The height and width of a plug-in circuit breaker are only approximately 4x2 cm, and the front face of the circuit breaker requires both an operating unit and a wire outlet for connecting the outlet terminals. Given the relatively limited installation space in the cabinet, this causes the wires from the outlet terminals to press against the operating unit (buttons and handles), making operation inconvenient for the user. Interference from the wires on the operating unit also increases the risk of incomplete closing (false closing) and incomplete opening during short-circuit / overload faults, posing a significant safety hazard to users. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a plug-in circuit breaker housing structure and a circuit breaker, isolating terminal wires and operating parts, thereby improving user power safety.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A plug-in circuit breaker housing structure, the circuit breaker housing is a rectangular parallelepiped structure, including a front end face and a rear end face, a left side face and a right side face, and an upper surface and a lower surface. The rear end face is provided with a wire inlet, the front end face is provided with an operating unit mounting port and a wire outlet, and a wire blocking partition is provided in the center of the front end face. The operating unit mounting port and the wire outlet are respectively located on the upper and lower sides of the wire blocking partition.

[0008] Furthermore, the wire blocking partition and the circuit breaker housing are an integrated structure.

[0009] Furthermore, the wire blocking partition and the circuit breaker housing are detachably connected.

[0010] Furthermore, a mounting groove is provided on the side of the front end surface, and a clamping groove portion is provided on the wire blocking partition. The wire blocking partition is installed on the front end surface through the combination of the mounting groove and the clamping groove portion.

[0011] Furthermore, the wire blocking partition is adhered to the front end surface.

[0012] Furthermore, the wire blocking plate is a rectangular, semicircular or polygonal plate.

[0013] Furthermore, a concave arc surface is provided on the side of the suspended end of the wire blocking partition.

[0014] Furthermore, guard plates are provided on both sides of the wire blocking partition, and the guard plates and the wire blocking partition form a concave structure.

[0015] Furthermore, a housing opening is provided on the upper surface of the circuit breaker housing for extending a locking mechanism of the circuit breaker.

[0016] A plug-in circuit breaker uses any one of the above plug-in circuit breaker housing structures.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can better separate the operating part and the wires of the terminal blocks by setting the wire blocking plate, avoid interference of the wires on the operating part, overcome the defect of the opening and closing switch not being able to move into place, and improve the convenience of user operation.

[0019] 2. The wire blocking plate and circuit breaker housing are detachable for easy maintenance and replacement. Users can choose different types of wire blocking plates for replacement according to actual conditions to better organize the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of Example 1.

[0021] Figure 2 This is a structural diagram of Example 2.

[0022] Figure 3 This is a structural diagram of Example 3.

[0023] Figure 4 This is a structural diagram of Example 4.

[0024] Figure numerals: 1. Wire inlet, 2. Wire outlet, 3. Operating unit installation opening, 4. Wire blocking plate, 41. Inwardly concave arc surface, 42. Protective plate, 43. Slot portion, 5. Shell opening, 6. Installation slot. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0026] Example 1

[0027] like Figure 1 As shown, this embodiment provides a plug-in circuit breaker housing structure, including a front end face and a rear end face that are arranged oppositely, a left side face and a right side face that are arranged oppositely, and an upper surface and a lower surface that are arranged oppositely. A wire inlet 1 is provided on the rear end face, and an operating unit installation port 3 and a wire outlet 2 are provided on the front end face. The wire inlet 1 and the outlet are connected to each other through corresponding wiring terminals and wires, respectively. A wire blocking partition 4 is provided in the center of the front end face, and the operating unit installation port 3 and the wire outlet 2 are respectively located on the upper and lower sides of the wire blocking partition 4. In this embodiment, the operating unit installation port 3 is located on the upper side, and the wire outlet 2 is located on the lower side.

[0028] In this embodiment, the wire blocking plate 4 and the circuit breaker housing are an integrated structure. The wire blocking plate 4 can be in the shape of a rectangular, semicircular or polygonal plate, and the specific form is not limited as long as it can play a role in separation.

[0029] The circuit breaker housing in this embodiment is further provided with a housing opening 5 on its upper surface for extending a locking mechanism of the circuit breaker, which is used to fix the plug-in circuit breaker in the cabinet.

[0030] Example 2

[0031] like Figure 2 As shown, this embodiment provides a plug-in circuit breaker housing structure, whose basic structure is the same as that of the first embodiment, except that the wire blocking partition 4 adopts a rectangular structure, and an inwardly concave arc surface 41 is provided on the side of the suspended end of the wire blocking partition 4 to better concentrate and guide the wires.

[0032] Example 3

[0033] like Figure 3 As shown, this embodiment provides a plug-in circuit breaker housing structure, whose basic structure is the same as that of the first embodiment, except that: guard plates 42 are provided on both sides of the wire blocking partition 4, and the guard plates 42 and the wire blocking partition 4 form a concave structure, which is also used to better concentrate and guide the wires.

[0034] Example 4

[0035] like Figure 4As shown, this embodiment provides a plug-in circuit breaker housing structure. Its basic structure is the same as that of the first embodiment, differing in that a wire retaining plate 4 is detachably connected to the circuit breaker housing. Specifically, a mounting slot 6 is provided on the side of the front face, and a retaining groove 43 is provided on the wire retaining plate 4. The mounting slot 6 and retaining groove 43 engage to secure the wire retaining plate 4 to the front face. This structure facilitates maintenance and replacement, allowing users to select different types of wire retaining plates 4 for replacement according to actual needs, thereby better organizing wires.

[0036] Example 5

[0037] This embodiment provides a plug-in circuit breaker housing structure, whose basic structure is the same as that of the first embodiment, except that the wire blocking partition 4 is detachably connected to the circuit breaker housing. Specifically, the wire blocking partition 4 is adhered to the front end surface by glue. When replacement is required, it can be removed and replaced by heating or other methods.

[0038] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A plug-in circuit breaker housing structure, wherein the circuit breaker housing is a rectangular parallelepiped structure, comprising a front end face and a rear end face, a left side face and a right side face, and an upper surface and a lower surface. The rear end face is provided with a line inlet (1), and the front end face is provided with an operating unit mounting port (3) and a line outlet (2), characterized in that: A wire blocking partition (4) is also provided in the center of the front end surface, and the operating portion installation opening (3) and the wire outlet (2) are respectively located on the upper and lower sides of the wire blocking partition (4); The wire blocking partition (4) and the circuit breaker housing are an integrated structure; or the wire blocking partition (4) and the circuit breaker housing are detachably connected.

2. The plug-in circuit breaker housing structure according to claim 1, characterized in that: The side of the front end face is provided with a mounting groove (6), and the wire blocking partition (4) is provided with a clamping groove portion (43). The wire blocking partition (4) is mounted on the front end face through the combination of the mounting groove (6) and the clamping groove portion (43).

3. The plug-in circuit breaker housing structure according to claim 1, characterized in that: The wire blocking plate (4) is adhered to the front end surface.

4. The plug-in circuit breaker housing structure according to claim 1, characterized in that: The wire blocking plate (4) is a rectangular, semicircular or polygonal plate.

5. The plug-in circuit breaker housing structure according to claim 1, characterized in that: The side edge of the suspended end of the wire blocking partition (4) is provided with an inwardly concave arc surface (41).

6. The plug-in circuit breaker housing structure according to claim 1, characterized in that: Guard plates (42) are provided on both sides of the wire blocking partition (4), and the guard plates (42) and the wire blocking partition (4) form a concave structure.

7. The plug-in circuit breaker housing structure according to claim 1, characterized in that: A housing opening (5) is provided on the upper surface of the circuit breaker housing for extending a locking mechanism of the circuit breaker.

8. A plug-in circuit breaker, characterized in that: A plug-in circuit breaker housing structure as described in any one of claims 1 to 7 is used.

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