Self-arc-extinguishing safety power distribution cabinet
By introducing a combination structure of support frame and arc extinguishing components into the distribution cabinet, the arc phenomenon is extinguished, solving the problem of high-temperature breakdown caused by arc, and realizing the safety of electrical components and the orderly arrangement of cable lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN XINHONGDIAN ELECTRICAL EQUIP CO LTD
- Filing Date
- 2025-06-28
- Publication Date
- 2026-06-19
Smart Images

Figure CN224384855U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power distribution cabinet technology, and in particular relates to a self-extinguishing arc safety power distribution cabinet. Background Technology
[0002] Distribution cabinets are divided into power distribution cabinets and lighting distribution cabinets. Each distribution cabinet contains several execution units, which are responsible for switching high-voltage lines. These execution units are generally electric execution units, which disconnect or close branches through circuit control. However, during the disconnection or closure of branches, an electric arc phenomenon is generated. The electric arc can generate high temperatures or breakdown, leading to damage to electrical components and causing unnecessary losses. Therefore, we provide a self-extinguishing arc-safe distribution cabinet. Utility Model Content
[0003] The purpose of this utility model is to provide a self-extinguishing arc safety distribution cabinet, which solves the problem that existing self-extinguishing arc safety distribution cabinets will generate an electric arc during the process of disconnecting or closing a branch circuit. The electric arc will generate high temperature or breakdown, which will damage electrical components.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0005] This utility model relates to a self-extinguishing arc safety distribution cabinet, comprising a cabinet body, with supporting frames fixedly installed at the four corners of the inner side wall of the cabinet body. The supporting frames have a hollow structure in the middle and an opening at the top corner facing the center of the cabinet body. The cabinet also includes:
[0006] The support component is detachably mounted on the side wall of the four support frames by fixing bolts, and the support component is used to install electrical components;
[0007] The arc-extinguishing component is detachably installed on the side walls of the four supporting frames by fixing bolts. The arc-extinguishing component is used to extinguish the electric arc generated when the electrical components are turned on and off.
[0008] The side wall of the support frame has through holes. The inner diameter of the through holes is larger than the diameter of fixing bolt one and fixing bolt two. The ends of fixing bolt one and fixing bolt two that pass through the support frame are fixed by nuts. Specifically, there are several through holes, which are equidistantly arranged on the side wall of the support frame.
[0009] The arc-extinguishing component includes an arc-extinguishing bracket, the side wall of which has an installation groove, and the middle part of which has a snap-fit groove. An arc-extinguishing element is snapped into the inner side wall of the snap-fit groove. The snap-fit groove improves the stability of the arc-extinguishing element when it is snapped into place.
[0010] Furthermore, the arc-extinguishing element includes an arc-extinguishing structure formed by multiple arc-extinguishing plates equidistantly combined. Two threaded posts are fixedly connected to one side of the arc-extinguishing plate. A circular hole is opened on one side of the arc-extinguishing bracket for the threaded posts to pass through. A fixing component is threaded to one end of the threaded post that passes through the circular hole. The arc-extinguishing plate can be directly fixed by the connection between the fixing component and the threaded post, thereby completing the assembly of the arc-extinguishing plate.
[0011] Furthermore, the fixing component includes a nut, the side wall of which is provided with a buckle. The buckle is made of elastic soft steel, and a cable tray is formed between two buckles. The cable tray can directly bind the wires, making it convenient to fix the cables in the power distribution cabinet in an orderly manner.
[0012] Furthermore, the supporting component is a supporting plate, and the supporting plate has a plurality of positioning grooves. The positioning grooves are elongated and facilitate the installation of electrical components.
[0013] This utility model has the following beneficial effects:
[0014] By setting up a support frame, support components, and arc-extinguishing components, the positions of the support components and arc-extinguishing components can be adjusted by inserting fixing bolt one and fixing bolt two into different through holes. When the arc-extinguishing components are installed near electrical components, the electric arc generated by the electrical components can be extinguished by the arc-extinguishing components. At the same time, the wiring of the distribution cabinet can be orderly clamped in the fixing components, ensuring the orderly arrangement of cables inside the distribution cabinet.
[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a partial structural schematic diagram of the present invention;
[0019] Figure 3 This is a structural schematic diagram of the supporting frame, supporting components, and arc-extinguishing components in this utility model;
[0020] Figure 4This is a schematic diagram of the arc-extinguishing component in this utility model;
[0021] Figure 5 This is a partial structural schematic diagram of the arc-extinguishing component in this utility model;
[0022] Figure 6 This is a schematic diagram of the arc-extinguishing element in this utility model.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Distribution cabinet body; 2. Support frame; 3. Opening; 4. Supporting components; 5. Arc extinguishing components; 51. Arc extinguishing bracket; 52. Mounting groove; 53. Arc extinguishing element; 531. Arc extinguishing plate; 532. Threaded post; 54. Round hole; 55. Fixing assembly; 551. Nut; 552. Clip; 6. Through hole; 61. Fixing bolt one; 62. Fixing bolt two. Detailed Implementation
[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This utility model relates to a self-extinguishing arc-safe distribution cabinet, comprising a cabinet body 1. Ventilation slots are provided on both sides of the cabinet body 1, allowing airflow to enter the cabinet body 1 for heat dissipation. Support frames 2 are fixedly installed at the four corners of the inner sidewall of the cabinet body 1. The middle of the support frame 2 is hollow, and an opening 3 is provided at the top corner facing the center of the cabinet body 1. The opening 3 facilitates the disassembly of the support components 4 and the arc-extinguishing components 5. The cabinet also includes:
[0028] Support component 4 is detachably mounted on the side wall of the four support frames 2 by fixing bolts 61. Support component 4 is used to install electrical components.
[0029] The arc extinguishing component 5 is detachably installed on the side wall of the four support frames 2 by means of fixing bolts 262. The arc extinguishing component 5 is used to extinguish the electric arc generated at the moment of opening and closing of the electrical components.
[0030] The side wall of the support frame 2 has through holes 6. The inner diameter of the through holes 6 is larger than the diameter of the fixing bolt 61 and the fixing bolt 62. The fixing bolt 61 and the fixing bolt 62 are inserted into one end of the support frame 2 and fixed by nuts. Specifically, there are several through holes 6, which are equidistantly arranged on the side wall of the support frame 2.
[0031] Support component 4 is a support plate with several positioning slots. The positioning slots are elongated and facilitate the installation of electrical components.
[0032] The arc-extinguishing component 5 includes an arc-extinguishing bracket 51. The side wall of the arc-extinguishing bracket 51 has a mounting groove 52, and the middle of the arc-extinguishing bracket 51 has a snap-fit groove. An arc-extinguishing element 53 is snapped into the inner wall of the snap-fit groove. The snap-fit groove improves the stability of the arc-extinguishing element 53 when it is snapped into place. The arc-extinguishing element 53 includes an arc-extinguishing structure formed by multiple arc-extinguishing plates 531 arranged equidistantly. Two threaded posts 532 are fixedly connected to one side of each arc-extinguishing plate 531, and a section is provided on one side of the arc-extinguishing bracket 51 for the threaded posts 532 to pass through. The circular hole 54 has a threaded post 532 that protrudes from one end of the circular hole 54 and is threadedly connected to a fixing component 55. Through the connection between the fixing component 55 and the threaded post 532, the arc extinguishing plate 531 can be directly fixed, thereby completing the assembly of the arc extinguishing plate 531. The fixing component 55 includes a nut 551, and the side wall of the nut 551 is provided with a buckle 552. The buckle 552 is made of elastic soft steel, and a wire harness groove is formed between the two buckles 552. The wire harness groove can be used to directly bind the wires, which facilitates the orderly fixing of the cables in the distribution cabinet 1.
[0033] Specifically, during operation / use, this self-extinguishing safety distribution cabinet allows the following: the supporting component 4 and the arc-extinguishing component 5 can be removed from the supporting frame 2 by removing fixing bolt 1 61 and fixing bolt 2 62. Simultaneously, fixing bolt 1 61 and fixing bolt 2 62 can be installed in different through holes 6 to fix the supporting component 4 and the arc-extinguishing component 5. This allows for adjustment of the space allocation within the distribution cabinet 1 by the supporting component 4, and also allows the arc-extinguishing component 5 to be adjusted to the vicinity of electrical components. When an electric arc is generated during the opening and closing of electrical components, the arc will be cut and extinguished by the arc-extinguishing plate 531. Furthermore, cables can be installed in the clips 552 to ensure orderly arrangement of cables within the distribution cabinet 1.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0035] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this disclosure is indicated by the following claims.
Claims
1. A self-arc-extinguishing safety power distribution cabinet, comprising a power distribution cabinet body (1), characterized in that: The four corners of the inner wall of the distribution cabinet (1) are all fixedly installed with support frames (2). The middle part of the support frame (2) is hollow and has an opening (3) at the top corner facing the center of the distribution cabinet (1). It also includes: The support component (4) is detachably mounted on the side wall of the four support frames (2) by means of fixing bolts (61), and the support component (4) is used to install electrical components; The arc extinguishing component (5) is detachably installed on the side wall of the four support frames (2) by fixing bolts two (62). The arc extinguishing component (5) is used to extinguish the electric arc generated at the moment of opening and closing of the electrical components. The arc extinguishing component (5) includes an arc extinguishing bracket (51), the side wall of which is provided with an installation groove (52), the middle part of which has a snap-fit groove, the inner side wall of which is snap-fitted with an arc extinguishing element (53), the arc extinguishing element (53) includes an arc extinguishing structure formed by multiple arc extinguishing plates (531) at equal intervals, two threaded posts (532) are fixedly connected to one side of the arc extinguishing plate (531), a round hole (54) is provided on one side of the arc extinguishing bracket (51) for the threaded posts (532) to pass through, and a fixing component (55) is threadedly connected to one end of the threaded post (532) that passes through the round hole (54).
2. The self-arc-extinguishing safety power distribution cabinet according to claim 1, characterized in that, The side wall of the support frame (2) is provided with a through hole (6). The inner diameter of the through hole (6) is larger than the diameter of the fixing bolt one (61) and the fixing bolt two (62). The fixing bolt one (61) and the fixing bolt two (62) are fixed by nuts at one end of the support frame (2).
3. The self-extinguishing arc-safe distribution cabinet according to claim 1, characterized in that, The fixing component (55) includes a nut (551), and the side wall of the nut (551) is provided with a buckle (552). The buckle (552) is made of elastic soft steel, and a wire harness groove is formed between the two buckles (552).
4. The self-extinguishing arc-safe distribution cabinet according to claim 1, characterized in that, The supporting component (4) is a supporting plate, and the supporting plate has a number of positioning grooves, which are long strips.