Ventilation device of low-voltage power distribution cabinet

Abstract

The utility model provides a ventilation device of a low-voltage power distribution cabinet. The ventilation device comprises an installation box, two communication installation boxes, two circular filtering members, two circular cover plates, two dismounting assemblies and a moving assembly. The two communication mounting boxes are symmetrically arranged in the center of the bottom of the mounting box, the two circular filtering pieces are arranged in the two communication mounting boxes respectively, and the two circular cover plates are mounted at one ends of the communication mounting boxes respectively; the two dismounting assemblies are respectively arranged at one ends of the two communication mounting boxes; the moving assembly is arranged between the mounting box and the two communicating mounting boxes. According to the ventilation device of the low-voltage power distribution cabinet provided by the utility model, when the effect of one circular filtering piece is reduced and the other circular filtering piece is replaced, the other circular filtering piece can be installed at a use position in a pushing manner, so that the circular filtering piece with the reduced use effect can be conveniently replaced; therefore, unfiltered gas can be prevented from flowing into the device.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage distribution cabinets, and in particular to a ventilation device for low-voltage distribution cabinets. Background Technology

[0002] As the name suggests, a low-voltage distribution cabinet is a power distribution device used in a power supply system for power distribution, control, metering, and cable connection. Generally, power supply bureaus and substations use high-voltage switchgear, which is then stepped down by a transformer to the low-voltage side and led to the low-voltage distribution cabinet. The low-voltage distribution cabinet then connects to various power distribution panels, control boxes, and switch boxes. Inside, there are devices that integrate switches, circuit breakers, fuses, buttons, indicator lights, meters, wires, and other protective devices to achieve the designed functional requirements of a power distribution device.

[0003] Low-voltage distribution cabinets currently generate a lot of heat during use, requiring air circulation for heat dissipation. Existing ventilation devices for high and low voltage distribution cabinets typically use fans or ventilation slots for heat dissipation. However, the patent application with publication number CN222546991U in the prior art proposes to introduce external air into the ventilation holes of the high and low voltage distribution cabinet through a ventilation fan. The external air is filtered by a filter box to remove moisture, preventing the introduction of humid external air into the cabinet and affecting the service life of electronic components.

[0004] However, current ventilation devices remove heat from the power distribution cabinet via external equipment. In order to filter the incoming air, the device uses filters. After prolonged use, the filters become less effective and need to be replaced. However, the filters need to be disassembled before replacement, and during the replacement process, some air may enter the device and cannot be processed.

[0005] Therefore, it is necessary to provide a ventilation device for low-voltage distribution cabinets to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a ventilation device for a low-voltage distribution cabinet, which solves the problem that the filter element on the current device will have reduced filtration effect after long-term use and needs to be replaced. However, when replacing the filter element, it is necessary to disassemble it, but during the replacement process, some gas will enter the device and cannot be treated.

[0007] To solve the above-mentioned technical problems, this utility model provides a ventilation device for a low-voltage distribution cabinet, comprising:

[0008] Installation box, two connecting installation boxes, two circular filter elements, two circular cover plates, two disassembly components, a moving component, a suction device, and filter plates;

[0009] Two connecting mounting boxes are symmetrically arranged at the center of the bottom of the mounting box, two circular filter elements are respectively arranged inside the two connecting mounting boxes, and two circular cover plates are respectively installed at one end of the connecting mounting boxes;

[0010] The two disassembly components are respectively disposed at one end of the two connected mounting boxes;

[0011] The movable component is disposed between the mounting box and the two connected mounting boxes;

[0012] The suction device is disposed inside the mounting box;

[0013] The filter plate is disposed inside the mounting box.

[0014] Preferably, the disassembly assembly includes a mesh disassembly cover, two arc-shaped mounting blocks, and two bolts. The two arc-shaped mounting blocks are respectively connected to the sides of the mesh disassembly cover, and the two bolts are respectively disposed between the two arc-shaped mounting blocks and the connecting mounting box.

[0015] Preferably, the movable component includes a fixed plate, a movable groove, two movable blocks, a bracket, and two limiting bolts. The fixed plate is installed at the bottom of the mounting box, the movable groove is formed on the surface of the fixed plate, the two movable blocks are disposed inside the movable groove, the bracket is sleeved on the surface of the two communicating mounting boxes, and the two limiting bolts are respectively disposed between the two movable blocks and the fixed plate.

[0016] Preferably, the suction device includes a pump body, two connecting pipes and a suction cover, wherein the two connecting pipes are respectively connected to the input end and the output end of the pump body, and the suction cover is connected to one end of one of the connecting pipes.

[0017] Preferably, limit blocks are installed at the bottom of the inner wall of the mounting box and on both sides of the filter plate, a mounting plate is installed at one end of the mounting box, and a circular through hole is provided between the mounting box and the mounting plate.

[0018] Preferably, a blower is provided on one side of the interior of the mounting box. The blower includes a fixing frame and a blower body. The fixing frame is installed inside the mounting box, and the blower body is installed on one side of the fixing frame.

[0019] Preferably, a movable component is provided at the top of the mounting box and above the filter plate. The movable component includes two external threaded blocks, a movable plate, a mounting groove, two pull rods, two connecting holes, and two threaded connecting sleeves. The two external threaded blocks are symmetrically connected to the top of the mounting box. The movable plate is disposed between the two external threaded blocks. The mounting groove is opened at the top of the mounting box and above the filter plate. The two pull rods are symmetrically connected to both sides of the top of the filter plate. The two connecting holes are opened on both sides of the surface of the movable plate. The two threaded connecting sleeves are respectively threaded to the surfaces of the two external threaded blocks.

[0020] Compared with related technologies, the ventilation device for a low-voltage distribution cabinet provided by this utility model has the following beneficial effects:

[0021] This utility model provides a ventilation device for a low-voltage distribution cabinet. The bottom of the mounting box is equipped with two connected mounting boxes, two circular filters, two circular covers, and two disassembly components that work with the moving components. When one of the circular filters becomes less effective and needs to be replaced, the other circular filter can be installed in the position by pushing it, making it easy to replace the filter with reduced effectiveness. This prevents unfiltered gas from flowing into the interior of the device. Attached Figure Description

[0022] Figure 1 A schematic diagram of the first embodiment of a ventilation device for a low-voltage distribution cabinet provided by this utility model;

[0023] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;

[0024] Figure 3 for Figure 1 The enlarged schematic diagram of section B is shown below;

[0025] Figure 4 for Figure 1 A three-dimensional structural diagram of the internal structure of the ventilation device shown.

[0026] Figure 5 for Figure 1 A first-view perspective three-dimensional structural diagram of the ventilation device shown.

[0027] Figure 6 for Figure 5 The enlarged schematic diagram of section C is shown below;

[0028] Figure 7 for Figure 1 A three-dimensional structural diagram of the ventilation device from a second perspective;

[0029] Figure 8A schematic diagram of the second embodiment of a ventilation device for a low-voltage distribution cabinet provided by this utility model;

[0030] Figure 9 for Figure 8 The enlarged schematic diagram of part D is shown.

[0031] The diagram labels are: 1. Mounting box; 2. Mounting plate; 3. Connecting mounting box; 4. Circular filter element; 5. Circular cover plate.

[0032] 6. Disassembly components; 61. Mesh disassembly cover; 62. Arc-shaped mounting block; 63. Bolts;

[0033] 7. Moving component; 71. Fixed plate; 72. Moving slot; 73. Moving block; 74. Bracket; 75. Limit bolt;

[0034] 8. Suction device; 81. Pump body; 82. Connecting pipe; 83. Suction cover;

[0035] 9. Filter plate;

[0036] 10. Blowing device; 101. Fixing frame; 102. Fan body;

[0037] 11. Circular through hole;

[0038] 12. Movable component; 121. External threaded block; 122. Movable plate; 123. Mounting slot; 124. Pull rod; 125. Connecting hole; 126. Threaded connecting sleeve;

[0039] 13. Limit block. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] First Embodiment

[0042] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 ,in, Figure 1 A schematic diagram of the first embodiment of a ventilation device for a low-voltage distribution cabinet provided by this utility model; Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below; Figure 3 for Figure 1 The enlarged schematic diagram of section B is shown below; Figure 4 for Figure 1 A three-dimensional structural diagram of the internal structure of the ventilation device shown. Figure 5 for Figure 1A first-view perspective three-dimensional structural diagram of the ventilation device shown. Figure 6 for Figure 5 The enlarged schematic diagram of section C is shown below; Figure 7 for Figure 1 The diagram shows a second-view perspective three-dimensional structural schematic of the ventilation device. A ventilation device for a low-voltage distribution cabinet includes:

[0043] 1. Installation box; 3. Two connected installation boxes; 4. Two circular filter elements; 5. Two circular cover plates; 6. Two disassembly components; 7. Moving components; 8. Suction device; and 9. Filter plates.

[0044] Two connecting mounting boxes 3 are symmetrically arranged at the center of the bottom of the mounting box 1, two circular filter elements 4 are respectively arranged inside the two connecting mounting boxes 3, and two circular cover plates 5 are respectively installed at one end of the connecting mounting box 3;

[0045] The two disassembly components 6 are respectively disposed at one end of the two connecting mounting boxes 3;

[0046] The movable component 7 is disposed between the mounting box 1 and the two connected mounting boxes 3;

[0047] The suction device 8 is disposed inside the mounting box 1;

[0048] The filter plate 9 is disposed inside the mounting box 1.

[0049] The disassembly assembly 6 includes a mesh disassembly cover 61, two arc-shaped mounting blocks 62, and two bolts 63. The two arc-shaped mounting blocks 62 are respectively connected to the sides of the mesh disassembly cover 61, and the two bolts 63 are respectively disposed between the two arc-shaped mounting blocks 62 and the connecting mounting box 3.

[0050] The use of the arc-shaped mounting block 62 facilitates the fixing of the mesh disassembly cover 61 to the connecting mounting box 3 by means of bolts 63.

[0051] The movable component 7 includes a fixed plate 71, a movable groove 72, two movable blocks 73, a bracket 74, and two limiting bolts 75. The fixed plate 71 is installed at the bottom of the mounting box 1. The movable groove 72 is formed on the surface of the fixed plate 71. The two movable blocks 73 are both disposed inside the movable groove 72. The bracket 74 is sleeved on the surface of the two communicating mounting boxes 3. The two limiting bolts 75 are respectively disposed between the two movable blocks 73 and the fixed plate 71.

[0052] The use of the movable slot 72 and the two movable blocks 73 facilitates the installation of the two connected mounting boxes 3. One side of the bracket 74 is connected to the two movable blocks 73 via a connecting block.

[0053] The suction device 8 includes a pump body 81, two connecting pipes 82 and a suction cover 83. The two connecting pipes 82 are respectively connected to the input end and the output end of the pump body 81, and the suction cover 83 is connected to one end of one of the connecting pipes 82.

[0054] In use, when extracting gas, the pump body 81 is first started to transport the gas outside the mounting box 1 through the mesh disassembly cover 61, the circular filter element 4 and the circular cover plate 5 to the inside of the suction hood 83. After the gas is transported to the inside of the suction hood 83, it is then transported to one side of the mounting box 1 through two connecting pipes 82. Then, the gas undergoes secondary filtration through the filter plate 9 inside the mounting box 1. Finally, the blower body 102 is started to transport the gas to the inside of the equipment through the circular through hole 11. The use of multiple limit blocks 13 facilitates the installation of the filter plate 9 inside the mounting box 1. The limit blocks 13 can be threadedly connected to the mounting box 1 through threaded bolts, which facilitates the replacement of the filter plate 9.

[0055] Limiting blocks 13 are installed at the bottom of the inner wall of the mounting box 1 and on both sides of the filter plate 9. An mounting plate 2 is installed at one end of the mounting box 1, and a circular through hole 11 is provided between the mounting box 1 and the mounting plate 2.

[0056] Mounting holes are provided on both sides of the mounting plate 2 to facilitate the connection of the mounting box 1 to the air inlet of the equipment using mounting bolts.

[0057] A blower device 10 is provided on one side inside the mounting box 1. The blower device 10 includes a fixing frame 101 and a blower body 102. The fixing frame 101 is installed inside the mounting box 1, and the blower body 102 is installed on one side of the fixing frame 101.

[0058] The working principle of the ventilation device for a low-voltage distribution cabinet provided by this utility model is as follows:

[0059] When replacing the used circular filter element 4, first remove the limiting bolt 75 between the two moving blocks 73 and the fixed plate 71. After removing the limiting bolt 75, pull the bracket 74 to move the two moving blocks 73 inside the moving groove 72, and at the same time move the two connecting mounting boxes 3. When the connecting mounting box 3 that needs to replace the circular filter element 4 moves to the outside of the mounting box 1, the other connecting mounting box 3 with the circular filter element 4 moves to the designated position of the mounting box 1 and uses the limiting bolt 75 to fix the fixed plate 71 and the moving block 73. Then remove the bolt 63 between the two arc-shaped mounting blocks 62 and the connecting mounting box 3. After removing the two bolts 63, separate the mesh disassembly cover 61 from the connecting mounting box 3, and the circular filter element 4 inside the connecting mounting box 3 can be removed and replaced.

[0060] Compared with related technologies, the ventilation device for a low-voltage distribution cabinet provided by this utility model has the following beneficial effects:

[0061] This utility model provides a ventilation device for a low-voltage distribution cabinet. Two connecting mounting boxes 3, two circular filter elements 4, two circular cover plates 5, and two disassembly components 6 are provided at the bottom of the mounting box 1 to work with the moving component 7. When one of the circular filter elements 4 becomes less effective and needs to be replaced, the other circular filter element 4 can be installed in the position by pushing it, which facilitates the replacement of the circular filter element 4 with reduced effectiveness and prevents unfiltered gas from flowing into the interior of the device.

[0062] Second Embodiment

[0063] Please refer to the following: Figure 8 and Figure 9 Based on the ventilation device for a low-voltage distribution cabinet provided in the first embodiment of this application, the second embodiment of this application proposes another ventilation device for a low-voltage distribution cabinet. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0064] Specifically, the second embodiment of this application provides a ventilation device for a low-voltage distribution cabinet, which differs in that a movable component 12 is provided on the top of the mounting box 1 and above the filter plate 9. The movable component 12 includes two external threaded blocks 121, a movable plate 122, a mounting groove 123, two pull rods 124, two connecting holes 125, and two threaded connecting sleeves 126. The two external threaded blocks 121 are symmetrically connected to the top of the mounting box 1. The movable plate 122 is disposed between the two external threaded blocks 121. The mounting groove 123 is opened on the top of the mounting box 1 and above the filter plate 9. The two pull rods 124 are symmetrically connected to both sides of the top of the filter plate 9. The two connecting holes 125 are opened on both sides of the surface of the movable plate 122. The two threaded connecting sleeves 126 are respectively threaded to the surfaces of the two external threaded blocks 121.

[0065] Mounting rings are connected to both ends of the movable plate 122, and the use of the pull rod 124 makes it easy to remove the filter plate 9 from the mounting box 1.

[0066] The working principle of the ventilation device for a low-voltage distribution cabinet provided by this utility model is as follows:

[0067] When using the filter plate 9 inside the mounting box 1, first remove the threaded connecting sleeves 126 on the surface of the two external threaded blocks 121. After the threaded connecting sleeves 126 are removed, pull the movable plate 122 to separate it from the mounting groove 123 and remove it. After the movable plate 122 is removed, pull the pulling rod 124 to remove the filter plate 9 from the mounting box 1 through the mounting groove 123.

[0068] Compared with related technologies, the ventilation device for a low-voltage distribution cabinet provided by this utility model has the following beneficial effects:

[0069] This utility model provides a ventilation device for a low-voltage distribution cabinet. Two external threaded blocks 121, a movable plate 122, a mounting groove 123, two pull rods 124, two connecting holes 125 and two threaded connecting sleeves 126 are provided on the top of the mounting box 1 to facilitate the replacement of the filter plate 9 inside the mounting box 1.

[0070] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A ventilation device for a low voltage switchgear cabinet, characterized in that The utility model relates to a filter device for water purification, which comprises an installation box, two communication installation boxes, two circular filter elements, two circular cover plates, two disassembly assemblies, a moving assembly, a suction device and a filter plate. The two communication installation boxes are symmetrically arranged at the center of the bottom of the installation box, and the two circular filter elements are respectively arranged in the two communication installation boxes. The two disassembly assemblies are respectively arranged at one end of the two communication installation boxes. The moving assembly is arranged between the installation box and the two communication installation boxes. The suction device is arranged in the installation box. The filter plate is arranged in the installation box. The disassembly assembly comprises a mesh disassembly cover, two arc-shaped mounting blocks and two bolts.

2. The ventilation device of a low voltage distribution switchgear according to claim 1, characterized in that, The moving assembly comprises a fixed plate, a moving groove, two moving blocks, a support and two limiting pins.

3. The ventilation device of a low voltage distribution switchgear according to claim 1, characterized in that, The suction device comprises a pump body, two connecting pipes and a suction cover.

4. The ventilation device of a low voltage distribution switchgear according to claim 3, characterized in that, The bottom of the inner wall of the installation box and the two sides of the filter plate are provided with limiting blocks.

5. The ventilation device of a low voltage distribution switchgear according to claim 1, characterized in that, One side of the installation box is provided with a blowing device.

6. The ventilation device of a low voltage distribution switchgear according to claim 1, characterized in that, The top of the installation box and above the filter plate are provided with a movable assembly.

7. The ventilation device of a low voltage distribution switchgear according to claim 1, characterized in that, The movable assembly comprises two external thread blocks, a movable plate, a mounting groove, two pull rods, two communication holes and two threaded connection sleeves.

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