Explosion-proof electrical cabinet

Abstract

The utility model discloses an explosion-proof electrical cabinet, comprising a cabinet body, the top of the cabinet body is provided with a heat dissipation chamber, the heat dissipation chamber is communicated with the cabinet body through a communication hole, the heat dissipation chamber is provided with heat dissipation holes, the upper part of the cabinet body is provided with a separator plate corresponding to the position of the communication hole, the separator plate is fixedly provided with a slide bar which penetrates through the cabinet body in a sliding manner, and the slide bar is provided with a plurality of through holes. The periphery of the sliding rod is sleeved with a spring, one end of the spring abuts against the top of the cabinet body, and the other end of the spring abuts against the partition plate. The top of the cabinet body is provided with the partition plate which abuts against the cabinet body through the springs, when the interior of the cabinet body explodes, the impact force of explosion pushes the partition plate upwards to move, and the impact force of explosion is absorbed through the springs, so that damage to the cabinet body caused by the impact force of explosion is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical control cabinets, in particular to an explosion-proof electrical cabinet. Background Art

[0002] Generally, various electrical components such as isolating switches, circuit breakers, and relays are installed inside existing electrical cabinets. When the electrical components are working, a large amount of heat will be generated. Therefore, it is often necessary to open heat dissipation holes on the electrical cabinet to timely discharge the heat inside the electrical cabinet and ensure that the electrical components can work normally. However, during the use of the electrical cabinet, sometimes explosions and other situations caused by short circuits of the lines or electrical components will occur, resulting in a large amount of high-temperature and high-pressure gas being generated instantaneously inside the electrical cabinet. If the pressure cannot be relieved in a timely and safe manner, it will not only cause damage to the electrical cabinet itself and make it unusable, but also pose a safety hazard to the surrounding personnel. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide an explosion-proof electrical cabinet.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An explosion-proof electrical cabinet includes a cabinet body. A heat dissipation chamber is arranged at the top of the cabinet body. The heat dissipation chamber is communicated with the cabinet body through a communication hole. Heat dissipation holes are opened on the heat dissipation chamber. A partition board corresponding to the position of the communication hole is arranged in the upper part of the cabinet body. A sliding rod that penetrates through the cabinet body is fixedly installed on the partition board. A spring is sleeved on the outer periphery of the sliding rod. One end of the spring abuts against the top of the cabinet body, and the other end of the spring abuts against the partition board.

[0006] Preferably, an organic glass plate is arranged on the partition board, and the heat dissipation holes are opened at the rear side of the heat dissipation chamber.

[0007] Preferably, a mesh plate is installed on the heat dissipation holes.

[0008] Preferably, a viewing window is installed in the upper part of the cabinet body. A baffle corresponding to the position of the viewing window is arranged inside the cabinet body. The baffle is slidably installed on a vertically arranged side plate.

[0009] Preferably, a connecting rod is installed on the cabinet body. A clamping plate is slidably arranged on the connecting rod. The clamping plate is inserted into a slot on the baffle, and the opening of the slot faces upward.

[0010] Preferably, an expanding section is arranged at the upper part of the slot, and the expanding section extends obliquely and expands towards both sides.

[0011] Preferably, an extension plate corresponding to the position of the clamping plate is arranged on the partition board, and the extension plate can abut against the clamping plate upward.

[0012] Preferably, a cabinet door is provided on the front side of the cabinet body.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. A partition is provided at the top of the cabinet body and is abutted by a spring. When an explosion occurs inside the cabinet body, the impact force of the explosion will push the partition upward to move, and the impact force of the explosion is absorbed by a plurality of springs to reduce the damage caused by the explosion impact force to the cabinet body;

[0015] 2. An organic glass plate is provided in the middle of the partition. When the internal explosion impact force is too large, the organic glass plate can be impacted and broken, so that the impact force of the explosion can be quickly relieved outward through the heat dissipation holes, thereby improving the impact resistance of the cabinet body. At the same time, the heat dissipation holes are arranged backward, and a perforated mesh plate is provided on the heat dissipation holes to avoid the fragments of the broken organic glass plate from splashing and hurting people, making the pressure relief operation safer and more reliable;

[0016] 3. When the partition moves upward to a certain position under the explosion impact force, the extension plate of the partition abuts against the clamping plate upward, so that the clamping plate moves upward and disengages from the slot of the baffle plate, and the baffle plate can block the viewing window downward to avoid damage to the viewing window due to directly bearing the explosion impact force, and even deformation and flying outward to hurt people. Description of the Drawings

[0017] Figure 1 is a three-dimensional view of the present utility model Figure 1 ;

[0018] Figure 2 is a three-dimensional view of the present utility model Figure 2 ;

[0019] Figure 3 is a cross-sectional schematic view of the present utility model;

[0020] Figure 4 is Figure 3 an enlarged schematic view of part A in

[0021] Figure 5 is a schematic view of the cooperation between the baffle plate and the partition of the present utility model;

[0022] Figure 6 is Figure 5 an enlarged schematic view of part B in

[0023] Figure 7 is an internal schematic view of the present utility model.

[0024] In the figure: cabinet body 1, cabinet door 11, horizontal plate 12, viewing window 13, communication hole 14, heat dissipation chamber 15, heat dissipation hole 151, mesh plate 152, baffle plate 2, slot 21, flared section 211, side plate 22, sliding groove 221, clamping plate 23, connecting rod 231, partition plate 3, extension plate 31, plexiglass plate 32, sliding rod 33, spring 34. Specific embodiments

[0025] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0026] In the description of this specification, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0027] As Figures 1 to 7 shown, an explosion-proof electrical cabinet includes a cabinet body 1. A cabinet door 11 is provided on the front side of the cabinet body 1, and the cabinet door 11 can be rotated and opened to install various electrical components and circuits inside the cabinet body 1.

[0028] A heat dissipation chamber 15 is provided on the top of the cabinet body 1. The heat dissipation chamber 15 is communicated with the cabinet body 1 through a communication hole 14. Heat dissipation holes 151 are opened on the heat dissipation chamber 15. The heat dissipation holes 151 are opened on the rear side of the heat dissipation chamber 15, that is, the heat dissipation holes 151 are located on the rear side of the cabinet door 11. Heat generated when the electrical components work is discharged outward through the heat dissipation holes 151.

[0029] A partition plate 3 corresponding to the position of the communication hole 14 is provided in the upper part of the cabinet body 1. A sliding rod 33 that penetrates the cabinet body 1 is fixedly installed on the partition plate 3. Specifically, one end of the sliding rod 33 can be fixed to the partition plate 3 by welding. The sliding rod 33 penetrates upward through the top plate of the cabinet body 1. The sliding rod 33 guides and limits the up and down sliding of the partition plate 3. One end of the sliding rod 33 that penetrates the cabinet body 1 is threadedly connected with a nut, and the downward displacement of the sliding rod 33 is limited by the nut.

[0030] A spring 34 is sleeved on the outer periphery of the sliding rod 33. One end of the spring 34 abuts against the top of the cabinet body 1, and the other end of the spring 34 abuts against the partition plate 3. The upward displacement of the partition plate 3 is restricted by the spring 34.

[0031] When an explosion occurs inside the cabinet body 1, the impact force of the explosion will push the partition plate 3 upward to move, and the impact force of the explosion is absorbed by a plurality of springs 34, thereby reducing the damage caused by the explosion impact force to the cabinet body 1.

[0032] An acrylic glass plate 32 is provided on the partition plate 3. The acrylic glass plate 32 is arranged in the middle of the partition plate 3 and is distributed corresponding to the communication hole 14 up and down.

[0033] A net plate 152 is installed on the heat dissipation hole 151. When the internal explosion impact force of the cabinet body 1 is too large, that is, after the explosion impact force is absorbed by the spring 34, if the explosion impact force can still impact the cabinet body 1 and even cause harm to the external staff, the explosion impact force can further impact and break the acrylic glass plate 32 (the broken acrylic glass plate 32 has smoother edges and corners of the broken fragments compared with ordinary glass plates and is not easy to hurt people), so that the explosion impact force can quickly release pressure outward through the heat dissipation hole 151 to improve the impact resistance of the cabinet body 1. At the same time, the heat dissipation hole 151 is arranged backward, and a perforated net plate 152 is arranged on the heat dissipation hole 151. The broken acrylic glass plate 32 is intercepted by the net plate 152 to avoid the broken acrylic glass plate fragments from splashing and hurting people, making the pressure relief operation safer and more reliable.

[0034] A viewing window 13 is installed on the upper part of the cabinet body 1. Through the viewing window 13, it is convenient to observe the working state of the electrical components inside the cabinet body 1. The viewing window 13 is located above the cabinet door 11 and is arranged on the horizontal plate 12 of the cabinet body 1. A baffle 2 corresponding to the position of the viewing window 13 is arranged inside the cabinet body 1. The baffle 2 is slidably installed on the vertically arranged side plate 22. The baffle 2 is slidably arranged on the chute 221 of the side plate 22 and can slide up and down along the chute 221.

[0035] The baffle 2 can slide upward and be fixed to prevent the baffle 2 from obstructing the inward observation of the viewing window 13.

[0036] A connecting rod 231 is installed on the cabinet body 1. The upper end of the connecting rod 231 is fixed to the top plate of the cabinet body 1. A clamping plate 23 is slidably arranged on the connecting rod 231. The clamping plate 23 can slide up and down along the connecting rod 231.

[0037] An upward-opening slot 21 is provided on the baffle 2. The clamping plate 23 is inserted into the slot 21 of the baffle 2. Thus, the baffle 2 is clamped and fixed above the viewing window 13 through the clamping plate 23. And at this time, the upper end of the baffle 2 abuts against the top plate of the cabinet body 1.

[0038] The opening of the slot 21 is arranged upward, and an enlarged opening section 211 is provided at the upper part of the slot 21. The enlarged opening section 211 extends obliquely and expands to both sides. The clamping plate 23 is clamped in the slot 21.

[0039] An extension plate 31 corresponding to the position of the clamping plate 23 is provided on the partition plate 3. The extension plate 31 can abut against the clamping plate 23 upward. When the partition plate 3 moves upward to a certain position under the impact force of an explosion, the extension plate 31 of the partition plate 3 abuts against the clamping plate 23 upward, so that the clamping plate 23 is displaced upward and disengages from the slot 21 of the baffle plate 2. When the baffle plate 2 is disengaged from the fixation of the clamping plate 23, it slides downward until it abuts against the cross plate 12 to block the viewing window 13, thereby avoiding damage to the viewing window 13 due to directly bearing the impact force of the explosion, and even deforming and flying outwards to injure people.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An explosion-proof electrical cabinet, comprising a cabinet body (1), a heat dissipation chamber (15) is arranged on the top of the cabinet body (1), the heat dissipation chamber (15) is connected to the cabinet body (1) through a connecting hole (14), and a heat dissipation hole (151) is opened on the heat dissipation chamber (15), characterized in that: A partition (3) corresponding to the position of the connecting hole (14) is arranged on the upper part of the cabinet (1); a slide rod (33) slidingly penetrating the cabinet (1) is fixedly mounted on the partition (3); a spring (34) is sleeved on the outer periphery of the slide rod (33); one end of the spring (34) abuts against the top of the cabinet (1), and the other end of the spring (34) abuts against the partition (3).

2. An explosion-proof electrical cabinet according to claim 1, characterized in that: The partition (3) is provided with an organic glass plate (32), and the heat dissipation hole (151) is opened at the rear side of the heat dissipation chamber (15).

3. An explosion-proof electrical cabinet according to claim 1, characterized in that: A mesh plate (152) is installed on the heat dissipation hole (151).

4. An explosion-proof electrical cabinet according to claim 1, characterized in that: A visual window (13) is installed on the upper part of the cabinet (1), and a baffle (2) corresponding to the position of the visual window (13) is arranged inside the cabinet (1), and the baffle (2) is slidably installed on a vertically arranged side plate (22).

5. An explosion-proof electrical cabinet as claimed in claim 4, characterized in that: A connecting rod (231) is installed on the cabinet (1), a card plate (23) is slidably arranged on the connecting rod (231), the card plate (23) is plugged into a slot (21) of the baffle (2), and the opening of the slot (21) is arranged upward.

6. An explosion-proof electrical cabinet as claimed in claim 5, characterized in that: The upper portion of the slot (21) is provided with a flared section (211), and the flared section (211) extends obliquely and expands toward both sides.

7. An explosion-proof electrical cabinet as claimed in claim 5, characterized in that: An extension plate (31) corresponding to the position of the clamping plate (23) is arranged on the partition plate (3), and the extension plate (31) can abut against the clamping plate (23) upwards.

8. An explosion-proof electrical cabinet according to claim 1, characterized in that: The front side of the cabinet body (1) is provided with a cabinet door (11).

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