A heat dissipation structure for a power distribution cabinet of a power grid

Abstract

The utility model discloses a kind of heat dissipation structures for power grid power distribution cabinet, including surface ventilation net, the rear end surface of surface ventilation net is connected with heat dissipation fan fixed frame. Through the surface ventilation net, heat dissipation fan fixed frame and heat dissipation fan bottom frame for being used to constitute equipment in the utility model, by respectively fixed on its outer surface and mutually fixed between each other connecting fixing rod, connecting sleeve and fixed block, when the use time of equipment is too long, need to clean dust located in its interior, pull apart pull rod to the rear, the fixing between connecting fixing rod, connecting sleeve and fixed block can be removed, after that, surface ventilation net, heat dissipation fan fixed frame and heat dissipation fan bottom frame can be directly separated from each other, the above technical solution can quickly disassemble each other between surface ventilation net, heat dissipation fan fixed frame and heat dissipation fan bottom frame, thereby improve the cleaning efficiency of dust in the interior of equipment for staff.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, specifically a heat dissipation structure for power grid distribution cabinets. Background Technology

[0002] Power grid distribution cabinets are important equipment in power systems used for distributing and controlling electrical energy. They play a key role in the power transmission and distribution process, ensuring that electrical energy can be safely and reliably delivered to various electrical equipment or users.

[0003] To prevent power grid distribution cabinets from being damaged by high temperatures and to ensure that the equipment can operate stably in high-temperature environments to extend its service life, air-cooled cooling fans are generally installed inside the power grid distribution cabinets during the assembly process. This is done to remove the heat inside the power grid distribution cabinet through airflow circulation. Such air-cooled cooling fans used to dissipate heat from the power grid distribution cabinet can be called a heat dissipation structure for power grid distribution cabinets.

[0004] However, if the air-cooled cooling fan is used for too long and too much dust accumulates inside, it will reduce the airflow of the equipment and thus affect its heat dissipation efficiency. In order to restore the airflow of the air-cooled cooling fan, it is necessary to disassemble it completely for cleaning. However, the various components of the air-cooled cooling fan are generally fixed together with screws, and the overall disassembly process is quite cumbersome, which will affect the cleaning efficiency of the staff. Therefore, it does not meet the existing needs. In response, we have proposed a heat dissipation structure for power grid distribution cabinets. Utility Model Content

[0005] The purpose of this utility model is to provide a heat dissipation structure for power grid distribution cabinets, in order to solve the problems mentioned in the background art, such as when the air-cooled cooling fan has been used for too long, too much dust accumulates inside, which will reduce the airflow of the equipment and thus affect its heat dissipation efficiency. In order to restore the airflow of the air-cooled cooling fan, it is necessary to disassemble the entire unit for cleaning. However, the various components of the air-cooled cooling fan are generally fixed with screws, and the overall disassembly process is cumbersome, which will affect the cleaning efficiency of the staff.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation structure for a power grid distribution cabinet, including a surface ventilation mesh, a cooling fan fixing frame connected to the rear end face of the surface ventilation mesh, a cooling fan bottom frame connected to the rear end face of the cooling fan fixing frame, a fixing base fixed inside the cooling fan bottom frame, a square mounting groove provided in the middle of the front end face of the fixing base, a fixing base inserted inside the square mounting groove, a wind circulation mechanism fixed to the front end face of the fixing base, a circular roller bearing plate connected to the front end face of the wind circulation mechanism, and a support plate connected to the front end face of the circular roller bearing plate via roller bearings;

[0007] A connecting rod is fixed on both the upper and lower sides of the rear end face of the surface ventilation mesh, and a connecting sleeve fixed to the outer surface of the cooling fan fixing frame is movably sleeved on the outer surface of the connecting rod.

[0008] The outer side of the rear end of the connecting rod is provided with a fixing block that is fixed to the outer surface of the bottom frame of the cooling fan. The lower end face of the first connecting rod and the upper end face of the second connecting rod from top to bottom are provided with a strip-shaped fixing groove located inside the fixing block. A rectangular fixing block is locked inside the strip-shaped fixing groove, and a spring is connected to the opposite face of the two rectangular fixing blocks.

[0009] The front end face of the rectangular fixing block is an inclined surface, and a U-shaped push rod that is slidably connected to the fixing block is provided in front of the inclined surface.

[0010] Preferably, the internal cross-sectional shape of the square mounting groove is square, the outer surface of the square mounting head fits against the inner wall of the square mounting groove, and the square mounting head and the square mounting groove are slidably connected.

[0011] Preferably, a disassembly lever is fixed to the rear end face of the two U-shaped push rods, and the disassembly lever is concave in shape.

[0012] Preferably, the outer side of the front end of the cooling fan fixing frame is provided with a square groove located at the rear end face of the surface ventilation mesh, the outer surface of the cooling fan fixing frame is in contact with the inner wall of the square groove, and the cooling fan fixing frame and the square groove are slidably connected.

[0013] Preferably, the support plate has ventilation holes located on the outer surface of the surface ventilation mesh at the front, and the upper and lower end faces of the support plate are fixed to the inner wall of the cooling fan fixing frame.

[0014] Preferably, the rear end face of the rectangular fixing block is a plane, and the plane located on the rear end face of the rectangular fixing block is in contact with the inner wall of the strip fixing groove.

[0015] Preferably, the wind circulation mechanism includes a motor housing, a drive motor, a motor shaft, and fan blades. The drive motor is fixed inside the motor housing, the output shaft of the motor shaft is connected to the drive motor via a coupling, and the fan blades are fixedly sleeved on the outer surface of the motor shaft.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model uses a surface ventilation mesh, a cooling fan fixing frame, and a cooling fan bottom frame, which are used to compose the equipment, to be fixed together by connecting fixing rods, connecting sleeves, and fixing blocks that are respectively fixed to their outer surfaces and fixed to each other. When the equipment has been used for a long time and it is necessary to clean the dust inside, the fixing rods, connecting sleeves, and fixing blocks can be released by pulling the disassembly rod backward. After the fixing rods, connecting sleeves, and fixing blocks are released, the surface ventilation mesh, cooling fan fixing frame, and cooling fan bottom frame can be directly separated from each other. The above technical solution can quickly disassemble the surface ventilation mesh, cooling fan fixing frame, and cooling fan bottom frame, thereby improving the efficiency of cleaning dust inside the equipment.

[0018] 2. In this utility model, the wind circulation mechanism used to drive the air circulation is clamped and fixed between a circular roller bearing plate and a fixed base that are respectively fixed between the cooling fan fixing frame and the cooling fan bottom frame. When the fixing between the surface ventilation mesh, the cooling fan fixing frame and the cooling fan bottom frame is released, the clamping and fixing of the wind circulation mechanism will also be released after the three are separated. Through the above technical solution, the overall efficiency of disassembly equipment is further improved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front view of the entire utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0022] Figure 4 This utility model Figure 2 Enlarged view of the structure at point B.

[0023] In the diagram: 1. Surface ventilation mesh; 2. Cooling fan mounting frame; 3. Cooling fan bottom frame; 4. Disassembly pull rod; 5. Air circulation mechanism; 6. Square mounting head; 7. Fixed base; 8. Square mounting groove; 9. Circular roller bearing plate; 10. Support plate; 11. Connecting fixing rod; 12. Connecting sleeve; 13. Strip fixing groove; 14. Rectangular fixing block; 15. Inclined surface; 16. U-shaped push rod; 17. Spring; 18. Fixing block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] The wind circulation mechanism 5 (model LX1700), disassembly rod 4 (model 304), and spring 17 (model JX110) mentioned in this utility model can be obtained from the market or through private customization.

[0026] Please see Figures 1 to 4 An embodiment of this utility model provides a heat dissipation structure for a power grid distribution cabinet, including a surface ventilation mesh 1, a cooling fan fixing frame 2 connected to the rear end face of the surface ventilation mesh 1, a cooling fan bottom frame 3 connected to the rear end face of the cooling fan fixing frame 2, a fixing base 7 fixed inside the cooling fan bottom frame 3, a square mounting groove 8 provided in the middle of the front end face of the fixing base 7, the fixing base 7 inserted inside the square mounting groove 8, a wind circulation mechanism 5 fixed to the front end face of the fixing base 7, a circular roller bearing plate 9 connected to the front end face of the wind circulation mechanism 5, and a support plate 10 connected to the front end face of the circular roller bearing plate 9 through a roller bearing.

[0027] A connecting rod 11 is fixed on both the upper and lower sides of the rear end face of the surface ventilation mesh 1, and a connecting sleeve 12 fixed to the outer surface of the cooling fan fixing frame 2 is movably sleeved on the outer surface of the connecting rod 11.

[0028] A fixing block 18 is provided on the outer side of the rear end of the connecting fixing rod 11 and fixed to the outer surface of the bottom frame 3 of the cooling fan. From top to bottom, the lower end face of the first connecting fixing rod 11 and the upper end face of the second connecting fixing rod 11 are provided with a strip-shaped fixing groove 13 located inside the fixing block 18. A rectangular fixing block 14 is locked inside the strip fixing groove 13, and a spring 17 is connected to the opposite face of the two rectangular fixing blocks 14.

[0029] The front end face of the rectangular fixing block 14 is an inclined surface 15, and a U-shaped push rod 16 is provided in front of the inclined surface 15 and is slidably connected to the fixing block 18.

[0030] A disassembly pull rod 4 is fixed to the rear end face of the two U-shaped push rods 16. The disassembly pull rod 4 is concave in shape. The rear end face of the rectangular fixing block 14 is flat, and the flat surface of the rear end face of the rectangular fixing block 14 fits against the inner wall of the strip fixing groove 13. The surface ventilation mesh 1, the cooling fan fixing frame 2, and the cooling fan bottom frame 3 used to assemble the equipment are fixed together by connecting fixing rods 11, connecting sleeves 12, and fixing blocks 18, which are respectively fixed to their outer surfaces and fixed to each other. When the equipment has been used for a long time and the dust inside needs to be cleaned, the disassembly pull rod 4 is pulled backward. As the disassembly pull rod 4 is pulled, the two U-shaped push rods 16 fixed to it will move backward together. As the U-shaped push rods 16 move, they will contact the inclined surface 15 on the front end face of the rectangular fixing block 14 and push the rectangular fixing block 14 inward. When the rectangular fixing block 14 leaves the inside of the strip fixing groove 13 on the outer surface of the connecting fixing rod 11, The fixing between the connecting rod 11 and the fixing block 18 will be released. After the fixing between the connecting rod 11 and the fixing block 18 is released, the fixing block 18 and the cooling fan bottom frame 3 fixed thereto will gradually move backward by applying a backward pulling force to the disassembly pull rod 4. When the fixing block 18 falls completely off the connecting rod 11, the cooling fan bottom frame 3 will be removed as a whole. After the cooling fan bottom frame 3 is removed, the connecting sleeve 12 that is movably sleeved on the outer surface of the connecting rod 11 or the cooling fan fixing frame 2 that is fixed to the connecting sleeve 12 can be removed directly. After the cooling fan fixing frame 2 and the cooling fan bottom frame 3 are removed, the dust cleaning operation can be carried out on various parts inside the equipment. The above technical solution can quickly disassemble the surface ventilation mesh 1, the cooling fan fixing frame 2 and the cooling fan bottom frame 3, thereby improving the cleaning efficiency of the staff in cleaning the dust inside the equipment.

[0031] The wind circulation mechanism 5, which drives the air circulation, is clamped and fixed between the circular roller bearing plate 9 and the fixed base 7, which are respectively fixed between the cooling fan fixing frame 2 and the cooling fan bottom frame 3. When the fixing between the surface ventilation mesh 1, the cooling fan fixing frame 2 and the cooling fan bottom frame 3 is released, and the three separate from each other, the clamping and fixing of the wind circulation mechanism 5 will also be released. Through the above technical solution, the overall efficiency of disassembling the equipment is further improved.

[0032] The internal cross-sectional shape of the square mounting slot 8 is square. The outer surface of the square mounting head 6 fits against the inner wall of the square mounting slot 8, and the square mounting head 6 and the square mounting slot 8 are slidably connected. After the dust cleaning is completed, the square mounting head 6, which is fixed to the rear end of the air circulation mechanism 5, is aligned with the square mounting slot 8 located on the front end of the fixed base 7. Then, the air circulation mechanism 5 is inserted into the bottom frame 3 of the cooling fan. As the air circulation mechanism 5 goes deeper, the square mounting head 6 will gradually insert into the interior of the square mounting slot 8. When the square mounting head 6 is completely inserted into the interior of the square mounting slot 8... The cooling fan mounting frame 2 is attached to the front end face of the cooling fan bottom frame 3. As the cooling fan mounting frame 2 and the cooling fan bottom frame 3 approach each other, the circular roller bearing plate 9, which is fixed inside the cooling fan mounting frame 2 by the support plate 10, will come into contact with the front end face of the air circulation mechanism 5, thereby clamping and fixing the air circulation mechanism 5. After the cooling fan mounting frame 2 and the cooling fan bottom frame 3 are attached, the two connecting sleeves 12, which are respectively fixed to the outer surface of the cooling fan mounting frame 2, are aligned with the two connecting fixing rods 11, which are fixed to the rear end face of the surface ventilation mesh 1, and the cooling fan is then... The fan mounting frame 2 is pushed towards the surface ventilation mesh 1. During the movement of the cooling fan mounting frame 2, the connecting sleeve 12 will be placed on the outer surface of the connecting fixing rod 11, and the rear end of the connecting fixing rod 11 will gradually insert into the interior of the fixing block 18. As the rear end of the connecting fixing rod 11 penetrates deeper into the fixing block 18, it will contact the inclined surface 15 of the front end face of the rectangular fixing block 14 located inside the fixing block 18. Under the action of the inclined surface 15, as the connecting fixing rod 11 penetrates deeper, the rectangular fixing block 14 will be pushed inward and compress the spring 17 connected to it. When the cooling fan mounting frame 2 and the surface ventilation mesh 1 are fitted together, and the cooling fan mounting frame 2 can no longer be pushed, the rectangular fixing block 14 can be inserted into the strip fixing groove 13 by the reaction force of the compressed spring 17. This fixes the fixing block 18 to the outer surface of the connecting fixing rod 11. When the fixing block 18 is fixed, the cooling fan bottom frame 3 fixed thereto and the cooling fan mounting frame 2 clamped between the cooling fan bottom frame 3 and the surface ventilation mesh 1 will be fixed. When the cooling fan mounting frame 2 and the cooling fan bottom frame 3 are fixed, the entire equipment is assembled.

[0033] The outer side of the front end of the cooling fan mounting frame 2 is provided with a square groove located on the rear end face of the surface ventilation mesh 1. The outer surface of the cooling fan mounting frame 2 is in contact with the inner wall of the square groove, and the cooling fan mounting frame 2 and the square groove are slidably connected. As the cooling fan mounting frame 2 gradually approaches the surface ventilation mesh 1, the front end of the cooling fan mounting frame 2 will gradually insert into the interior of the square groove. This directional groove can prevent the cooling fan mounting frame 2 and the surface ventilation mesh 1 from shaking, thereby ensuring the connection stability between the cooling fan mounting frame 2 and the surface ventilation mesh 1.

[0034] The support plate 10 has ventilation holes on the outer surface of the surface ventilation mesh 1, and the upper and lower ends of the support plate 10 are fixed to the inner wall of the cooling fan fixing frame 2. The wind circulation mechanism 5 includes a motor housing, a drive motor, a motor shaft and fan blades. The drive motor is fixed inside the motor housing. The output shaft of the motor shaft is connected to the drive motor through a coupling, and the fan blades are fixedly sleeved on the outer surface of the motor shaft. When the equipment is fully assembled, the wind circulation mechanism 5 is started. The wind circulation mechanism 5 can draw in outside air through the ventilation holes on the outer surface of the surface ventilation mesh 1, thereby driving the air flow inside the power grid distribution cabinet.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat dissipation structure for a power grid distribution cabinet, comprising a surface ventilation mesh (1), characterized in that: The rear end face of the surface ventilation mesh (1) is connected to a cooling fan fixing frame (2), the rear end face of the cooling fan fixing frame (2) is connected to a cooling fan bottom frame (3), a fixing base (7) is fixed inside the cooling fan bottom frame (3), a square mounting groove (8) is provided in the middle of the front end face of the fixing base (7), the fixing base (7) is inserted inside the square mounting groove (8), a wind circulation mechanism (5) is fixed on the front end face of the fixing base (7), a circular roller bearing plate (9) is connected to the front end face of the wind circulation mechanism (5), and a support plate (10) is connected to the front end face of the circular roller bearing plate (9) through a roller bearing. A connecting rod (11) is fixed on both the upper and lower sides of the rear end face of the surface ventilation mesh (1), and a connecting sleeve (12) fixed to the outer surface of the cooling fan fixing frame (2) is movably sleeved on the outer surface of the connecting rod (11). The outer side of the rear end of the connecting rod (11) is provided with a fixing block (18) fixed to the outer surface of the bottom frame (3) of the cooling fan. The lower end face of the first connecting rod (11) and the upper end face of the second connecting rod (11) are provided with a strip-shaped fixing groove (13) located inside the fixing block (18). A rectangular fixing block (14) is inserted inside the strip-shaped fixing groove (13), and a spring (17) is connected to the opposite faces of the two rectangular fixing blocks (14). The front end face of the rectangular fixing block (14) is an inclined surface (15), and a U-shaped push rod (16) is provided in front of the inclined surface (15) and is slidably connected to the fixing block (18).

2. The heat dissipation structure for a power grid distribution cabinet according to claim 1, characterized in that: The internal cross-sectional shape of the square mounting groove (8) is square, the outer surface of the square mounting head (6) is in contact with the inner wall of the square mounting groove (8), and the square mounting head (6) and the square mounting groove (8) are slidably connected.

3. The heat dissipation structure for a power grid distribution cabinet according to claim 1, characterized in that: A disassembly lever (4) is fixed to the rear end face of the two U-shaped push rods (16), and the disassembly lever (4) is concave in shape.

4. The heat dissipation structure for a power grid distribution cabinet according to claim 1, characterized in that: The outer side of the front end of the cooling fan fixing frame (2) is provided with a square groove located on the rear end face of the surface ventilation mesh (1). The outer surface of the cooling fan fixing frame (2) is in contact with the inner wall of the square groove, and the cooling fan fixing frame (2) and the square groove are slidably connected.

5. The heat dissipation structure for a power grid distribution cabinet according to claim 1, characterized in that: The support plate (10) has ventilation holes on the outer surface of the surface ventilation mesh (1) in front of it, and the upper and lower end faces of the support plate (10) are fixed to the inner wall of the cooling fan fixing frame (2).

6. The heat dissipation structure for a power grid distribution cabinet according to claim 1, characterized in that: The rear end face of the rectangular fixing block (14) is a plane, and the plane of the rear end face of the rectangular fixing block (14) is in contact with the inner wall of the strip fixing groove (13).

7. The heat dissipation structure for a power grid distribution cabinet according to claim 1, characterized in that: The wind circulation mechanism includes a motor housing, a drive motor, a motor shaft, and fan blades. The drive motor is fixed inside the motor housing. The output shaft of the motor shaft is connected to the drive motor via a coupling, and the fan blades are fixedly sleeved on the outer surface of the motor shaft.

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