Split type wiring terminal housing of liquid magnetic circuit breaker

Abstract

The invention, which relates to the technical field of power system safety, discloses a split-type wiring terminal housing of a liquid magnetic circuit breaker, comprising a liquid magnetic circuit breaker body, a first wiring terminal housing, an auxiliary terminal housing, and a second wiring terminal housing, vertical ribs are symmetrically arranged at two sides of the auxiliary terminal housing; the side wall of the first wiring terminal housing is provided with a clamping groove used for being connected with the auxiliary terminal housing, the clamping groove is matched with a vertical rib on the auxiliary terminal housing, and the first wiring terminal housing and the auxiliary terminal housing are fixed together through the clamping groove and the vertical rib. The top of the first wiring terminal housing is provided with a limiting structure, and the first wiring terminal housing is fixedly connected with a wiring terminal stud of the liquid magnetic circuit breaker body through the limiting structure. Safety protection can be achieved under the condition that the width and installation size of the liquid magnetic circuit breaker are not increased, flexible installation and disassembly requirements of different wiring terminals can be met, and convenient and rapid installation experience is provided for field installation and maintenance personnel.

Description

Technical Field

[0001] The invention relates to the technical field of power system safety, and in particular to a split-type terminal cover for a liquid-magnetic circuit breaker. Background Art

[0002] As an important power system protection device, liquid magnetic circuit breakers are widely used in high-voltage circuits to cut off current in overload or short circuit conditions to protect the safety of circuits and equipment. However, in the existing liquid magnetic circuit breaker design, the wiring terminals are usually exposed, which poses the following problems when powered on: Safety hazards: When powered on, exposed wiring terminals may cause electric shock accidents due to mis-touch or accidental contact, posing a serious threat to the personal safety of on-site maintenance and operators; Difficult maintenance: Due to the exposed wiring terminals, maintenance personnel need to take additional safety measures when inspecting or replacing circuit breakers, such as power-off operations or using insulating tools, which increases the complexity and cost of maintenance; Poor environmental adaptability: Exposed wiring terminals are easily affected by environmental factors such as dust and moisture, which may affect the performance and reliability of the circuit breaker. The wiring terminals of liquid magnetic circuit breakers are exposed, which poses a hidden danger to the personal safety of on-site maintenance and operators when powered on.

[0003] Therefore, technicians in this field are committed to developing a split terminal cover for a liquid magnetic circuit breaker, aiming to solve the potential safety hazard problem that may be caused by the exposed terminal of the existing liquid magnetic circuit breaker when it is powered on. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to solve the potential safety hazard caused by the exposed wiring terminals of the existing liquid-magnetic circuit breaker.

[0005] To achieve the above-mentioned objectives, the present invention provides a split terminal cover for a liquid magnetic circuit breaker, comprising a liquid magnetic circuit breaker body, a first terminal cover, an auxiliary terminal cover, and a second terminal cover, wherein the first terminal cover, the auxiliary terminal cover, and the second terminal cover are fixedly mounted on the liquid magnetic circuit breaker body.

[0006] Furthermore, the first wiring terminal housing, the second wiring terminal housing and the auxiliary terminal housing are fixedly connected via a slot buckle structure.

[0007] Furthermore, a flange structure is designed at the bottom of the auxiliary terminal cover structure.

[0008] Furthermore, the flange structure adheres the auxiliary terminal cover to the liquid-magnetic circuit breaker body through an adhesive.

[0009] Furthermore, vertical ribs are symmetrically provided on both sides of the auxiliary terminal cover for installing and fixing the first terminal cover and the second terminal cover.

[0010] Furthermore, a limiting structure is provided on the top of the first terminal cover.

[0011] Furthermore, the side wall of the first terminal housing has a slot for connecting to the auxiliary terminal housing, the slot matches the vertical ribs on the auxiliary terminal housing, and the first terminal housing and the auxiliary terminal housing are fixed together by the slot and the vertical ribs.

[0012] Furthermore, the slot is a plurality of parallel positioning slots, and a hook structure is provided at the end of the slot. After the vertical rib is inserted into the slot, it is locked by the hook structure to prevent slipping.

[0013] Furthermore, the limiting structure is a wedge-shaped cylindrical structure, and the first terminal cover is fixedly connected to the terminal stud head of the liquid-magnetic circuit breaker body through the wedge-shaped cylindrical structure.

[0014] Furthermore, the structure and installation method of the second terminal cover are the same as those of the first terminal cover, and the first terminal cover and the second terminal cover are symmetrically installed on both sides of the auxiliary terminal cover.

[0015] According to the above technical solution, the present invention can achieve the following technical effects:

[0016] (1). Effectively protect the terminal blocks, prevent accidental contact when powered on, improve the safety of on-site maintenance and operation, simplify the maintenance process, reduce maintenance costs, and improve the environmental adaptability of the circuit breaker, which protects the personal safety of the operators and maintenance personnel of the liquid magnetic circuit breaker; (2). This split terminal block cover can achieve the safety protection function without increasing the width installation size of the liquid magnetic circuit breaker. (3). The split terminal blocks are designed separately, and the three wiring areas do not interfere with each other. The terminal block cover can be quickly and conveniently fixed on the body of the liquid magnetic circuit breaker, which can meet the flexible installation and removal requirements of different terminal blocks; (4). The fixing of the auxiliary terminal cover provides a basic guarantee for the fixing of the terminal block 1 cover and the terminal block 2 cover; (5). Screwless fixing can simply, flexibly, conveniently and quickly install and fix the terminal block cover together, providing a convenient and fast installation experience for on-site installation and maintenance personnel; (6). Symmetrical installation makes the terminal block covers at both ends unified as one part, saving mold opening costs and achieving the uniformity of similar parts of the product.

[0017] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a split-type terminal cover of a liquid-magnetic circuit breaker according to a preferred embodiment of the present invention;

[0019] Figure 2 It is a top view of the structure of a split-type terminal cover of a liquid-magnetic circuit breaker according to a preferred embodiment of the present invention;

[0020] Figure 3 It is a structural schematic diagram of an auxiliary terminal cover of a preferred embodiment of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a first terminal cover of a preferred embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of a fixing method of a first terminal cover and a liquid-magnetic circuit breaker body in a preferred embodiment of the present invention;

[0023] Figure 6 This is a fixing method of the first wiring terminal cover and the auxiliary wiring terminal cover in a preferred embodiment of the present invention.

[0024] Among them: 1-liquid magnetic circuit breaker body, 2-first terminal cover, 3-auxiliary terminal cover, 4-second terminal cover, 5-vertical ribs, 6-flanged structure, 7-wedge-shaped cylindrical hole, 8-stud head, 9-slot. DETAILED DESCRIPTION

[0025] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0026] In the drawings, components with the same structure are indicated by the same numerical reference numerals, and components with similar structures or functions are indicated by similar numerical reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0027] like Figure 1-Figure 2As shown, a split terminal cover for a liquid magnetic circuit breaker includes a liquid magnetic circuit breaker body 1, a first terminal cover 2, an auxiliary terminal cover 3, and a second terminal cover 4. The three parts of the cover are designed separately and do not interfere with each other, so that the flexible installation and disassembly requirements of different terminals can be realized. The first terminal cover 2, the auxiliary terminal cover 3, and the second terminal cover 4 are fixed on the liquid magnetic circuit breaker body by means of terminal stud limiters and slot and hook fixation, which plays a role in protecting the personal safety of the operators and maintenance personnel of the liquid magnetic circuit breaker, and can realize the personal safety of the operators and maintenance personnel without increasing the width installation size of the liquid magnetic circuit breaker. The structure and installation method of the second terminal cover 4 are the same as those of the first terminal cover 1, and the first terminal cover 1 and the second terminal cover 4 are symmetrically installed on both sides of the auxiliary terminal cover 3.

[0028] like Figure 3 As shown, a flange structure 6 is designed at the bottom of the auxiliary terminal cover 3, and the bottom flange structure 6 is used to stick the auxiliary terminal cover 3 to the liquid magnetic circuit breaker body 1 by adhesive. Vertical ribs 5 are symmetrically designed at both ends of the auxiliary terminal cover 3 for installation and fixation of the first terminal cover 2 and the second terminal cover 4.

[0029] like Figure 4-Figure 6 As shown, a wedge-shaped cylindrical hole 7 is designed at the top center of the first terminal cover 2, and the wedge-shaped cylindrical hole 7 is stuck on the stud head 8 of the liquid magnetic circuit breaker terminal. The first terminal cover is designed with a slot 9, and the slot 9 cooperates with the vertical rib 5 on the auxiliary terminal cover 3 to fix the first terminal cover 2 and the auxiliary terminal cover 3 together. The slot 9 is a plurality of parallel positioning grooves, and a hook structure is provided at the end of the slot 9. After the vertical rib 5 is inserted into the slot 9, it is locked by the hook structure. The hook structure can select a straight arm hook. One end of the vertical rib 5 can be provided with a groove that matches the hook structure. After the vertical rib 5 is inserted into the slot 9, the hook fixes it to prevent it from slipping.

[0030] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A split terminal housing for a liquid magnetic circuit breaker, characterized in that: The invention comprises a liquid magnetic circuit breaker body, a first terminal cover, an auxiliary terminal cover and a second terminal cover, wherein the first terminal cover, the auxiliary terminal cover and the second terminal cover are fixedly mounted on the liquid magnetic circuit breaker body.

2. The split terminal housing for a liquid-magnetic circuit breaker according to claim 1, characterized in that: The first wiring terminal housing, the second wiring terminal housing and the auxiliary terminal housing are fixedly connected via a slot buckle structure.

3. The split terminal housing for a liquid-magnetic circuit breaker according to claim 1, characterized in that: The bottom of the auxiliary terminal cover structure is designed with a flange structure.

4. The split terminal housing for a liquid-magnetic circuit breaker according to claim 3, characterized in that: The flange structure adheres the auxiliary terminal cover to the liquid-magnetic circuit breaker body through an adhesive.

5. The split terminal housing for a liquid-magnetic circuit breaker according to claim 1, characterized in that: Vertical ribs are symmetrically arranged on both sides of the auxiliary terminal cover for installing and fixing the first wiring terminal cover and the second wiring terminal cover.

6. The split terminal housing for a liquid-magnetic circuit breaker according to claim 5, characterized in that: A limiting structure is provided on the top of the first terminal cover.

7. The split-type terminal housing for a liquid-magnetic circuit breaker according to claim 6, characterized in that: The side wall of the first terminal cover has a slot for connecting to the auxiliary terminal cover, the slot matches the vertical rib on the auxiliary terminal cover, and the first terminal cover and the auxiliary terminal cover are fixed together by the slot and the vertical rib.

8. The split terminal housing for a liquid-magnetic circuit breaker according to claim 7, characterized in that: The slots are multiple parallel positioning slots, and a hook structure is provided at the end of the slots. After the vertical ribs are inserted into the slots, they are locked by the hook structure to prevent slipping.

9. The split terminal housing for a liquid-magnetic circuit breaker according to claim 6, characterized in that: The limiting structure is a wedge-shaped cylindrical structure, and the first terminal cover is fixedly connected to the terminal stud head of the liquid-magnetic circuit breaker body through the wedge-shaped cylindrical structure.

10. The split-type terminal housing for a liquid-magnetic circuit breaker according to claim 9, characterized in that: The structure and installation method of the second terminal cover are the same as those of the first terminal cover, and the first terminal cover and the second terminal cover are symmetrically installed on both sides of the auxiliary terminal cover.

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