Detachable top arc extinguishing device for cabinet

Abstract

The invention discloses a detachable top arc extinguishing device for a cabinet, which relates to the technical field of power transformation and power distribution of an intelligent power grid and comprises an arc extinguishing shell and a plurality of arc extinguishing baffles which are arranged in the arc extinguishing shell in parallel. The arc extinguishing shell comprises an arc extinguishing hinge side plate, an arc extinguishing side plate, an arc extinguishing front plate and an arc extinguishing rear plate, the arc extinguishing front plate and the arc extinguishing rear plate are fixedly connected with the arc extinguishing hinge side plate and the arc extinguishing side plate, the arc extinguishing shell further comprises an arcing cover plate, and the arcing cover plate is movably connected with the arc extinguishing hinge side plate through a hinge assembly; the hinge assembly is installed on the folded edge of the arc extinguishing hinge side plate and comprises an inner cover plate hinge, an outer cover plate hinge and a shaft pressure relief cover. The top arc-extinguishing device for the cabinet is simple in structure, convenient to install and machine, different from a traditional top arc-extinguishing device for the cabinet, high in interchangeability and convenient to quickly replace on an installation site.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent power grid transformation and distribution, and particularly relates to a detachable top arc extinguishing device for cabinets. BACKGROUND

[0002] With the standardization design customization scheme (2019 version) of the 12kV handcart type switch cabinet of the State Grid, the arc burning scheme of the middle cabinet is standardized, and the arc burning requirement of the middle cabinet cabinet body in the later stage will become a basic requirement. Therefore, the convenience of the arc burning scheme will become a technical requirement that must be considered in the design of the cabinet body. The traditional scheme seriously affects the maintenance and production processing of the cabinet body due to processing difficulties or inconvenience. SUMMARY

[0003] In order to solve the above technical defects existing in the prior art, the purpose of the present application is to provide a detachable top arc extinguishing device for cabinets, which is convenient to install, simple to process and can be reused, so as to solve the problems of difficult processing and troublesome use in the past.

[0004] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: a detachable top arc extinguishing device for cabinets, comprising an arc extinguishing shell and a plurality of parallel placed arc extinguishing baffles placed in the arc extinguishing shell; the arc extinguishing shell comprises an arc extinguishing hinge side plate, an arc extinguishing side plate and an arc extinguishing front plate and an arc extinguishing rear plate fixedly connected with the arc extinguishing hinge side plate and the arc extinguishing side plate, and the arc extinguishing shell further comprises an arc burning cover plate, which is movably connected with the arc extinguishing hinge side plate through a hinge assembly; the hinge assembly is installed on the folded edge of the arc extinguishing hinge side plate and comprises an inner cover plate hinge, an outer cover plate hinge and a shaft pressure relief cover.

[0005] As a preferred structure of the present application, the bottom of the arc extinguishing hinge side plate and the arc extinguishing side plate is provided with a mounting hole for mounting the top cover of the middle cabinet; the middle part of the arc extinguishing hinge side plate and the arc extinguishing side plate is provided with a fixing hole for connecting the arc extinguishing front plate and the arc extinguishing rear plate; the two long edges of the arc extinguishing hinge side plate and the arc extinguishing side plate are provided with folded edges, and the folded edge of the arc extinguishing hinge side plate is provided with a hole for connecting the hinge assembly.

[0006] As a preferred structure of the present application, the middle part of the arc extinguishing front plate and the arc extinguishing rear plate is provided with a fixing hole, and the arc extinguishing baffle is fixed by screws or self-tapping screws.

[0007] As a preferred structure of the present application, the arc extinguishing baffle is provided with a plurality of small holes for releasing air pressure when the middle cabinet is pressure relieved, and a gauze is arranged below the arc extinguishing baffle for blocking small particles.

[0008] As a preferred structure of the present application, the arc burning cover plate can be freely turned over by 180° through the hinge assembly.

[0009] As a preferred structure of the present invention, the arc-extinguishing hinge side plate and the arc-extinguishing side plate are connected to the arc-extinguishing front plate and the arc-extinguishing rear plate by means of rivets and bolts.

[0010] As a preferred structure of the present invention, the arc-extinguishing baffle includes a front arc-extinguishing baffle, a middle arc-extinguishing baffle, and a rear arc-extinguishing baffle placed in parallel.

[0011] The arc-extinguishing cover is used for final pressure relief while ensuring the enclosure protection level requirements of a detachable cabinet-top arc-extinguishing device.

[0012] The cabinet top arc extinguishing device of the present invention has a simple structure, is easy to install and process, and is different from the traditional cabinet top arc extinguishing device. It is also highly interchangeable and can be quickly replaced on the installation site. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the top arc-extinguishing device in this embodiment.

[0014] Figure 2 This is a top view of the top arc-extinguishing device in this embodiment.

[0015] Figure 3 This is a side view of the top arc-extinguishing device in this embodiment.

[0016] Figure 4 This is an internal structural view of the top arc-extinguishing device in this embodiment.

[0017] Figure 5 This is a schematic diagram of the assembly of the top arc extinguishing device and the central cabinet in this embodiment.

[0018] Among them, the front arc extinguishing plate 1, the arc extinguishing hinge side plate 2, the arc extinguishing side plate 3, the inner cover plate hinge 4, the outer cover plate hinge 5, the shaft pressure relief cover 6, the rear arc extinguishing plate 7, the rear arc extinguishing baffle 8, the middle arc extinguishing baffle 9, the front arc extinguishing baffle 10, the arc ignition cover plate 11, and the central cabinet 12. Detailed Implementation

[0019] The specific embodiments of the top arc-extinguishing device for cabinets in this invention will be further described below with reference to the accompanying drawings.

[0020] like Figures 1-4As shown in the schematic diagram of a preferred embodiment of the top arc extinguishing device for the central cabinet 12 according to this embodiment, it includes an arc extinguishing shell and multiple parallel arc extinguishing baffles placed inside the arc extinguishing shell; the arc extinguishing shell includes an arc extinguishing hinge side plate 2, an arc extinguishing side plate 3, and an arc extinguishing front plate 1 and an arc extinguishing rear plate 7 fixedly connected to the arc extinguishing hinge side plate 2 and the arc extinguishing side plate 3; the arc extinguishing shell also includes an arc-ignition cover plate 11, which is movably connected to the arc extinguishing hinge side plate 2 through a hinge assembly; the hinge assembly is installed on the folded edge of the arc extinguishing hinge side plate 2 and includes an inner cover plate hinge 4, an outer cover plate hinge 5, and a shaft pressure relief cover 6.

[0021] As a preferred structure in this embodiment, the bottom of the arc-extinguishing hinge side plate 2 and the arc-extinguishing side plate 3 are provided with mounting holes for installing the top cover of the central cabinet 12; the two ends of the middle part of the arc-extinguishing hinge side plate 2 and the arc-extinguishing side plate 3 are provided with 8 fixing holes for connecting the arc-extinguishing front plate 1 and the arc-extinguishing rear plate 7, which also increases the strength of the arc-extinguishing shell; the two long sides of the arc-extinguishing hinge side plate 2 and the arc-extinguishing side plate 3 are provided with folded edges, wherein the folded edges of the arc-extinguishing hinge side plate 2 are provided with holes for connecting the hinge assembly.

[0022] As a preferred structure in this embodiment, the arc-extinguishing front plate 1 and the arc-extinguishing rear plate 7 have fixing holes in their middle sections, and the arc-extinguishing baffle is fixed by screws or self-tapping screws, which can increase the strength of the arc-extinguishing shell. At the same time, disassembly is extremely convenient, and because there are many installations, they can also be used as reinforcement points.

[0023] As a preferred structure in this embodiment, the arc-extinguishing baffle has dense small holes for releasing air pressure when the central cabinet 12 is depressurized, and a mesh is installed below to block fine particles.

[0024] As a preferred structure in this embodiment, the arc cover 11 can be freely rotated 180° via a hinge assembly, making it easy to open and release pressure from the cabinet at the end.

[0025] As a preferred structure in this embodiment, the arc-extinguishing baffle includes a front arc-extinguishing baffle 10, a middle arc-extinguishing baffle 9, and a rear arc-extinguishing baffle 8 placed in parallel.

[0026] like Figure 1 As shown, in this embodiment, the arc-extinguishing side plate 3, the arc-extinguishing hinge side plate 2, the arc-extinguishing front plate 1, and the arc-extinguishing rear plate 7 are connected by rivet nuts and bolts. This method is easy to install and disassemble and is convenient to use.

[0027] The arc cover plate 11 has its hinge assembly completely concealed inside during installation, which ensures the safety of the hinge assembly and makes the exterior more aesthetically pleasing.

[0028] like Figure 5 The figure shows an assembly diagram of the central cabinet 12 with the top arc extinguishing device installed according to the present invention.

[0029] In this embodiment, the central cabinet 12 and the top arc extinguishing device are connected by rivet nuts and bolts on the top cover of the cabinet.

[0030] Those skilled in the art will readily understand that this invention, a detachable top-mounted arc-extinguishing device for central-voltage switchgear, is an arc-extinguishing device used on the top of a central-voltage switchgear. It can be used on the top of a central-voltage switchgear to prevent the leakage of arc light and particulate matter from the switchgear's handcart compartment, busbar compartment, and cable compartment. Depending on the size, it can be used in various functional combinations on the top of a central-voltage switchgear. Due to space limitations and for the sake of brevity, these combinations are not described in detail here; however, after reading this specification, the scope of this invention, constituting any combination of the various parts described herein, is self-evident.

Claims

1. A detachable cabinet top arc-extinguishing device, characterized in that: The device includes an arc-extinguishing shell and multiple parallel arc-extinguishing baffles placed inside the arc-extinguishing shell. The arc-extinguishing shell includes an arc-extinguishing hinge side plate (2), an arc-extinguishing side plate (3), and an arc-extinguishing front plate (1) and an arc-extinguishing rear plate (7) fixedly connected to the arc-extinguishing hinge side plate (2) and the arc-extinguishing side plate (3). The arc-extinguishing shell also includes an arc-ignition cover plate (11), which is movably connected to the arc-extinguishing hinge side plate (2) through a hinge assembly. The hinge assembly is installed on the folded edge of the arc-extinguishing hinge side plate (2) and includes an inner cover plate hinge (4), an outer cover plate hinge (5), and a shaft pressure relief cover (6).

2. The detachable top arc-extinguishing device for a centrally located cabinet according to claim 1, characterized in that: The bottom of the arc-extinguishing hinge side plate (2) and the arc-extinguishing side plate (3) are provided with mounting holes for installing the top cover of the central cabinet (12); the middle part of the arc-extinguishing hinge side plate (2) and the arc-extinguishing side plate (3) is provided with fixing holes for connecting the arc-extinguishing front plate (1) and the arc-extinguishing rear plate (7); the two long sides of the arc-extinguishing hinge side plate (2) and the arc-extinguishing side plate (3) are provided with folded edges, wherein the folded edge of the arc-extinguishing hinge side plate (2) is provided with holes for connecting the hinge assembly.

3. The detachable top arc-extinguishing device for a centrally located cabinet according to claim 1, characterized in that: The arc-extinguishing front plate (1) and the arc-extinguishing rear plate (7) have fixing holes in the middle, and the arc-extinguishing baffle is fixed by screws or self-tapping screws.

4. The detachable top arc-extinguishing device for a centrally located cabinet according to claim 1, characterized in that: The arc-extinguishing baffle has dense small holes for releasing air pressure when the central cabinet (12) is depressurized, and a mesh is installed below to block fine particles.

5. A detachable top arc-extinguishing device for a centrally located cabinet according to claim 1 or 2, characterized in that: The arc cover (11) can be freely rotated 180° via a hinge assembly.

6. A detachable top arc-extinguishing device for a centrally located cabinet according to claim 1 or 2, characterized in that: The arc-extinguishing hinge side plate (2) and arc-extinguishing side plate (3) are connected to the arc-extinguishing front plate (1) and arc-extinguishing rear plate (7) by means of rivet nuts and bolts.

7. The top arc-extinguishing device for a detachable central cabinet according to claim 1, characterized in that: The arc-extinguishing baffles include a front arc-extinguishing baffle (10), a middle arc-extinguishing baffle (9), and a rear arc-extinguishing baffle (8) placed in parallel.

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