Switch cabinet with protection function

Abstract

The utility model relates to a switch cabinet with a protection function, which belongs to the technical field of switch cabinets and comprises a switch cabinet body and a fan arranged on the switch cabinet body, a filter plate is arranged on the top surface of the fan, and a filter screen is fixedly embedded in the bottom surface of the filter plate. The top surface of the switch cabinet body is rotatably connected with a positioning rod through a bearing, the bottom surface of the filter plate is provided with a positioning hole, and the positioning rod extends into the positioning hole. According to the switch cabinet with the protection function, a fan is covered under the action of a filter screen, dust in air is prevented from penetrating through the fan to enter the switch cabinet body as much as possible, the protection effect is improved, a filter plate is limited through clearance fit between a positioning rod and a positioning hole, the filter plate is convenient to disassemble, assemble and clean, and the practicability is high. And under the action of a limiting frame, the filter plate is supported, the stability of the filter plate is improved, and the device is more convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet with a protection function. Background Art

[0002] The switchgear is an electrical equipment. The external line of the switchgear first enters the main control switch inside the cabinet, and then enters the sub-control switch. Each branch is set according to its needs, such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high-voltage and low-voltage room switchgears, with high-voltage busbars, such as power plants, etc. Some also have low-frequency load shedding to protect the main equipment. The main function of the switchgear is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system.

[0003] Chinese patent CN214478891U discloses a switch cabinet cooling device with a protective function. The patent discloses a technical solution for convenient heat dissipation and protection, which solves the problem that high temperatures are often generated in existing switch cabinets due to power conversion, and internal circuits are prone to aging, short circuits, or even explosions due to high temperatures. In addition, the existing switch cabinets have poor heat dissipation and protection effects during use, which often cause injuries to people in the event of an accident.

[0004] When in use, the device cools down the interior of the switch cabinet and protects the circuits through the action of two fans. However, the fans are located on the top of the switch cabinet. When the fans are not started, dust in the air can easily pass through the fans and enter the interior of the cabinet, causing interference with the wire connection points and reducing the protection effect. Therefore, a switch cabinet with a protection function is proposed to solve the above problem. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a switch cabinet with a protective function, which has the advantages of convenient dust prevention and improved protection effect. It solves the problem that when the device is in use, the interior of the switch cabinet is cooled down by the action of two fans to protect the circuit. However, the fan is located at the top of the switch cabinet. When the fan is not started, dust in the air can easily pass through the fan and enter the interior of the cabinet, causing interference to the wire connection points and reducing the protection effect.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a switch cabinet with a protective function, comprising a switch cabinet body and a fan arranged on the switch cabinet body, a filter plate placed on the top surface of the fan, and a filter mesh fixedly embedded on the bottom surface of the filter plate.

[0007] The top surface of the switch cabinet body is rotatably connected to a positioning rod through a bearing, a positioning hole is provided on the bottom surface of the filter plate, the positioning rod extends to the inside of the positioning hole, a connecting groove is provided on the bottom surface of the filter plate, a limiting frame is placed on the left side of the filter plate, the filter plate extends to the inside of the limiting frame, and a clamping hole is provided on the right side of the positioning rod.

[0008] A fixing assembly is provided inside the connecting groove for fixing the filter plate.

[0009] The limiting frame is provided with a supporting assembly for supporting the filter plate.

[0010] Furthermore, the positioning rod and the positioning hole are clearance-matched, and the fan is covered by the filter.

[0011] Furthermore, the fixing assembly includes a telescopic rod, which is fixedly connected to the inside of the connecting groove, and the left side of the telescopic rod is fixedly connected to a baffle, and the left side of the baffle is fixedly connected to a clamping rod with one end extending to the inside of the clamping hole, and the outer peripheral wall of the telescopic rod is provided with springs fixedly connected to the baffle and the connecting groove respectively.

[0012] Furthermore, the clamping rod and the clamping hole are clearance-matched, and the telescopic rod is composed of a sleeve and a moving rod. One end of the moving rod passes through and extends to the interior of the sleeve, and the outer side of the moving rod is fixedly connected to a limiting block located inside the sleeve, and a through hole adapted to the moving rod is opened on one side of the sleeve.

[0013] Furthermore, the support assembly includes a connecting rod, one end of which is rotatably connected to the top surface of the switch cabinet body through a bearing, and the other end is fixedly connected to the limit frame. Two fixing rods are fixedly connected to the right side of the limit frame. Fixing holes are provided on the top and bottom surfaces of the filter plate, and the two fixing rods extend to the inside of the two fixing holes respectively and fit therewith.

[0014] Furthermore, the limiting frame is a U-shaped frame, the fixing rod is an L-shaped rod, and the fixing rod is an elastic rod.

[0015] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0016] The switch cabinet with a protective function covers the fan through the action of the filter screen, and tries to prevent dust in the air from passing through the fan and entering the interior of the switch cabinet body, thereby improving the protection effect. The filter plate is restricted by the clearance fit between the positioning rod and the positioning hole, and the filter plate can be conveniently disassembled and cleaned, thereby improving the use effect. The filter plate is supported by the limit frame, which improves the stability of the filter plate and is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the middle part;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of middle B;

[0020] Figure 4 It is a schematic diagram of the right side of the limiting frame in the structure of the utility model.

[0021] In the figure: 1. Switch cabinet body; 2. Positioning rod; 3. Filter plate; 4. Positioning hole; 5. Fan; 6. Filter; 7. Limiting frame; 8. Connecting rod; 9. Clamping hole; 10. Clamping rod; 11. Baffle; 12. Connecting slot; 13. Spring; 14. Telescopic rod; 15. Fixing rod; 16. Fixing hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 4 In this embodiment, a switch cabinet with a protective function includes a switch cabinet body 1 and a fan 5 arranged on the switch cabinet body 1. A filter plate 3 is placed on the top surface of the fan 5, and a filter screen 6 is fixedly embedded on the bottom surface of the filter plate 3. The fan 5 is located on the top surface of the switch cabinet body 1.

[0024] The top surface of the switch cabinet body 1 is rotatably connected to the positioning rod 2 through a bearing, a positioning hole 4 is provided on the bottom surface of the filter plate 3, the positioning rod 2 extends to the inside of the positioning hole 4, a connecting groove 12 is provided on the bottom surface of the filter plate 3, a limit frame 7 is placed on the left side of the filter plate 3, the filter plate 3 extends to the inside of the limit frame 7, and a clamping hole 9 is provided on the right side of the positioning rod 2.

[0025] The positioning rod 2 and the positioning hole 4 are clearance-matched, and the fan 5 is covered by the filter 6 .

[0026] Specifically, the filter plate 3 is placed on the top of the positioning rod 2, and the filter plate 3 is pushed. The positioning rod 2 is inserted into the inside of the positioning hole 4. The filter plate 3 is restricted by the clearance between the positioning rod 2 and the positioning hole 4. After the filter plate 3 and the positioning rod 2 are connected, the filter plate 3 is pushed. Under the action of the positioning rod 2, the filter plate 3 is moved, and the filter screen 6 covers the fan 5. Under the action of the filter screen 6, the top of the fan 5 is dust-proofed to prevent dust from passing through the fan 5 and entering the interior of the switch cabinet body 1 as much as possible.

[0027] In this embodiment, a fixing component is provided inside the connecting groove 12, and the fixing component includes a telescopic rod 14, which is fixedly connected to the inside of the connecting groove 12, and the left side of the telescopic rod 14 is fixedly connected to a baffle 11, and the left side of the baffle 11 is fixedly connected to a clamping rod 10 with one end extending to the inside of the clamping hole 9, and the outer peripheral wall of the telescopic rod 14 is provided with a spring 13 fixedly connected to the baffle 11 and the connecting groove 12 respectively.

[0028] Among them, the clamping rod 10 and the clamping hole 9 are clearance-fitted, the telescopic rod 14 is composed of a sleeve and a moving rod, one end of the moving rod passes through and extends to the interior of the sleeve, the outer side of the moving rod is fixedly connected to a limiting block located inside the sleeve, and a through hole adapted to the moving rod is opened on one side of the sleeve.

[0029] Specifically, pull the baffle 11 so that the baffle 11 drives the card rod 10 to move, squeeze the telescopic rod 14 and the spring 13, and shrink the telescopic rod 14 and the spring 13. The card rod 10 and the card hole 9 are located on the same center line. Loosen the baffle 11, and the card rod 10 is pushed to reset under the action of the spring 13. The card rod 10 is inserted into the inside of the card hole 9. The filter plate 3 is fixed on the positioning rod 2 through the clearance between the card rod 10 and the card hole 9.

[0030] In this embodiment, a support assembly is provided on the limit frame 7, and the support assembly includes a connecting rod 8. One end of the connecting rod 8 is rotatably connected to the top surface of the switch cabinet body 1 through a bearing, and the other end is fixedly connected to the limit frame 7. Two fixing rods 15 are fixedly connected to the right side of the limit frame 7. Fixing holes 16 are provided on the top and bottom surfaces of the filter plate 3. The two fixing rods 15 extend to the inside of the two fixing holes 16 respectively and fit with the clearance therein.

[0031] The limiting frame 7 is a U-shaped frame, the fixing rod 15 is an L-shaped rod, and the fixing rod 15 is an elastic rod.

[0032] Specifically, the limit frame 7 is rotated and the limit frame 7 is driven to move by the connecting rod 8. The filter plate 3 is inserted into the interior of the limit frame 7. The filter plate 3 squeezes the fixing rod 15 to deform the fixing rod 15. The fixing rod 15 and the positioning hole 16 are located on the same center line. The fixing rod 15 is reset and inserted into the interior of the fixing hole 16. The gap between the fixing rod 15 and the fixing hole 16 is matched to restrict the filter plate 3 and the limit frame 7. Then, under the action of the connecting rod 8 and the limit frame 7, the filter plate 3 is supported to improve the stability of the filter plate 3.

[0033] The working principle of the above embodiment is:

[0034] Pull the baffle 11, so that the baffle 11 drives the card rod 10 to move, squeeze the telescopic rod 14 and the spring 13, so that the telescopic rod 14 and the spring 13 are contracted, and the filter plate 3 is placed on the top of the positioning rod 2, and the filter plate 3 is pushed. The positioning rod 2 is inserted into the interior of the positioning hole 4, and the filter plate 3 is restricted by the clearance between the positioning rod 2 and the positioning hole 4. The card rod 10 and the card hole 9 are located on the same center line, and the baffle 11 is loosened. The card rod 10 is pushed to reset under the action of the spring 13, and the card rod 10 is inserted into the interior of the card hole 9. The filter plate 3 is fixed on the positioning rod 2, and the filter plate 3 is pushed. Under the action of the positioning rod 2, the filter plate 3 is moved. The filter screen 6 covers the fan 5. Under the action of the filter screen 6, the top of the fan 5 is dust-proofed to prevent dust from passing through the fan 5 and entering the interior of the switch cabinet body 1. The limit frame 7 is rotated and the limit frame 7 is driven to move by the connecting rod 8. The filter plate 3 is inserted into the interior of the limit frame 7. The filter plate 3 squeezes the fixing rod 15 to deform the fixing rod 15. The fixing rod 15 and the positioning hole 16 are located on the same center line. The fixing rod 15 is reset and inserted into the interior of the fixing hole 16. The gap between the fixing rod 15 and the fixing hole 16 is matched to restrict the filter plate 3 and the limit frame 7. Then, under the action of the connecting rod 8 and the limit frame 7, the filter plate 3 is supported to improve the stability of the filter plate 3.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0036] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A switch cabinet with a protective function, comprising a switch cabinet body (1) and a fan (5) arranged on the switch cabinet body (1), characterized in that: A filter plate (3) is placed on the top surface of the fan (5), and a filter screen (6) is fixedly embedded on the bottom surface of the filter plate (3); The top surface of the switch cabinet body (1) is rotatably connected to a positioning rod (2) via a bearing, a positioning hole (4) is provided on the bottom surface of the filter plate (3), the positioning rod (2) extends to the inside of the positioning hole (4), a connecting groove (12) is provided on the bottom surface of the filter plate (3), a limiting frame (7) is placed on the left side of the filter plate (3), the filter plate (3) extends to the inside of the limiting frame (7), and a clamping hole (9) is provided on the right side of the positioning rod (2); A fixing component is provided inside the connecting groove (12), and a supporting component is provided on the limiting frame (7).

2. The switch cabinet with protection function according to claim 1, characterized in that: The positioning rod (2) and the positioning hole (4) are clearance-matched, and the fan (5) is covered by the filter (6).

3. The switch cabinet with protection function according to claim 1, characterized in that: The fixing assembly includes a telescopic rod (14), the telescopic rod (14) is fixedly connected to the inside of the connecting groove (12), the left side of the telescopic rod (14) is fixedly connected to a baffle (11), the left side of the baffle (11) is fixedly connected to a clamping rod (10) with one end extending to the inside of the clamping hole (9), and the outer peripheral wall of the telescopic rod (14) is provided with a spring (13) fixedly connected to the baffle (11) and the connecting groove (12) respectively.

4. The switch cabinet with protection function according to claim 3, characterized in that: The clamping rod (10) and the clamping hole (9) are clearance-matched, and the telescopic rod (14) is composed of a sleeve and a moving rod. One end of the moving rod passes through and extends into the interior of the sleeve, and the outer side of the moving rod is fixedly connected to a limiting block located inside the sleeve, and a through hole adapted to the moving rod is opened on one side of the sleeve.

5. The switch cabinet with protection function according to claim 3, characterized in that: The support assembly includes a connecting rod (8), one end of which is rotatably connected to the top surface of the switch cabinet body (1) through a bearing, and the other end of which is fixedly connected to the limit frame (7), and two fixing rods (15) are fixedly connected to the right side of the limit frame (7), and the top and bottom surfaces of the filter plate (3) are both provided with fixing holes (16), and the two fixing rods (15) respectively extend into the inside of the two fixing holes (16) and are clearance-matched therewith.

6. The switch cabinet with protection function according to claim 5, characterized in that: The limiting frame (7) is a U-shaped frame, the fixing rod (15) is an L-shaped rod, and the fixing rod (15) is an elastic rod.

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