Power station distribution box heat dissipation device

By designing a combination device of a water storage tank and a vent pipe in the distribution box, the air temperature is reduced and dust is prevented from entering, the problem of poor heat dissipation effect of the distribution box in high-temperature environments is solved, and the heat dissipation efficiency and service life are improved.

CN119315425APending Publication Date: 2025-01-14STATE GRID XINYUAN GRP CO LTD +1
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Patent Information

Application Number
CN202411434686.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-15
Publication Date
2025-01-14

AI Technical Summary

Technical Problem

Under high ambient temperature conditions, the heat dissipation effect of the distribution box is poor, resulting in an increase in the internal temperature of the distribution box and a decrease in service life.

Method used

A power station distribution box heat dissipation device is designed, including a distribution box, mounting frame, water storage tank and ventilator. The air temperature is reduced through a water-filled water storage tank, and the air enters the distribution box through the ventilator to achieve cooling effect. , and prevent dust from entering through the filter mesh and spiral impeller to ensure heat dissipation efficiency.

Benefits of technology

It effectively reduces the air temperature entering the distribution box, improves the heat dissipation effect, extends the service life of the distribution box, and prevents dust from affecting the heat dissipation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of power distribution equipment, and particularly relates to a power station power distribution box heat dissipation device which comprises a power distribution box body. A mounting frame is arranged in the power distribution box body in a sliding fit manner; a plurality of water storage tanks are arranged in the mounting frame in a sliding fit manner; the interior of the side wall of the water storage tank is in threaded connection with a sealing threaded cover; an air inlet is formed in the top of the mounting frame; the water storage tank is filled with water, air is injected into the mounting frame through the air inlet, the air enters the power distribution box body through the air outlet, and when the air passes through the ventilation pipe arranged on the water storage tank, the water in the water storage tank can cool the air. According to the power distribution box, the temperature of air entering the power distribution box body is lower, the heat dissipation effect of the interior of the power distribution box body is better, and the problem that the heat dissipation effect of the power distribution box body is poor due to the fact that the temperature of the interior of the power distribution box body is high due to the fact that the temperature of the air entering the power distribution box body is high is effectively solved.
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Description

Technical Field

[0001] The invention belongs to the technical field of power distribution equipment, in particular to a heat dissipation device for a power distribution box in a power station. Background Art

[0002] Pumped-storage power stations have multiple functions such as peak shaving, valley filling, energy storage, frequency regulation, and phase regulation. They are one of the most technologically mature regulating power sources currently available. They can operate in conjunction with new energy sources such as wind power and solar energy, and effectively support the large-scale and high-quality development of wind and solar energy. The distribution boxes of pumped-storage power stations are an important part of the power station's electrical system. They are usually used to distribute and control electrical energy to ensure the stable operation of the power station.

[0003] In the current prior art, a patent application with application number CN202210463479.7 discloses an energy-saving distribution box with good heat dissipation effect, including a box body, an air compressor and a vortex tube are arranged on the top of the box body, the vortex tube includes an air intake pipe, a cold air exhaust pipe and a hot air exhaust pipe, the exhaust port of the air compressor is connected to the air intake pipe, the cold air exhaust pipe extends into the interior of the box body, the hot air exhaust pipe is connected to the thermoelectric generator, the thermoelectric generator is electrically connected to the battery, the battery is electrically connected to the air compressor, and the battery is arranged on the top of the box body. The present invention can improve the effect of heat dissipation and cooling, and can also use waste heat to generate electricity, and has a good energy-saving effect.

[0004] When the distribution box needs to be cooled, when the external ambient temperature is high, the temperature of the air entering the distribution box will also be high. The high temperature of the air entering the distribution box will cause the temperature inside the distribution box to be high, resulting in poor cooling effect for the distribution box, which will reduce the service life of the distribution box. Summary of the invention

[0005] The purpose of the present invention is to provide a heat dissipation device for a power distribution box in a power station, which has a good heat dissipation effect and prolongs the service life.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a heat dissipation device for a power distribution box in a power station described in the present invention comprises a distribution box body; a mounting frame is slidably matched inside the distribution box body; a plurality of water storage tanks are slidably matched inside the mounting frame; a sealing threaded cover is threadedly connected to the inner side wall of the water storage tank; an air inlet is provided at the top of the mounting frame, and a fixing flange is fixedly connected to the position corresponding to the air inlet on the side wall of the mounting frame; a vent pipe is connected to the inner side of the water storage tank; an air outlet is provided on the side wall of the mounting frame, and an air outlet pipe is fixedly connected to the position corresponding to the air outlet on the side wall of the mounting frame; the air outlet pipe is arranged at a position facing the inner side of the distribution box body; the air inlet is provided at a position close to the top of the mounting frame, and the air outlet is provided at a position close to the bottom of the mounting frame; the fixing flange and the air outlet pipe are arranged on two opposite side walls inside the corresponding mounting frame; the vent pipes are staggered inside the plurality of water storage tanks; the temperature of the air entering the inner side of the distribution box body can be lowered, so that the cooling effect on the inner side of the distribution box body is better.

[0007] Preferably, a contact plate is provided on the side of the mounting frame; the contact plate is arranged on the side of the mounting frame close to the distribution box; a plurality of springs are fixedly connected between the mounting frame and the contact plate; the air outlet pipe is slidably fitted at the internal position of the contact plate; a fixed bevel block is slidably connected inside the distribution box; a spring is fixedly connected between the fixed bevel block and the distribution box; a pull rope is fixedly connected to the side of the fixed bevel block away from the mounting frame; the other end of the pull rope is fixedly connected to a pull block; the pull rope passes through the interior of the distribution box; a fixed bevel groove is opened on the side wall of the mounting frame; the fixed bevel block and the fixed bevel groove are arranged correspondingly; the mounting frame can be made more stable when inside the distribution box.

[0008] Preferably, a plurality of filters are fixedly connected to the interior of the mounting frame; the filters are arranged at positions corresponding to the air inlets of the mounting frame; the plurality of filters are regularly arranged in a linear array inside the mounting frame; this can effectively prevent external dust from entering the interior of the distribution box, adhering to the surface of the electrical components, affecting the heat dissipation efficiency of the electrical components, and easily causing the electrical components to generate more heat.

[0009] Preferably, a fixing frame is fixedly connected to the inside of the ventilation pipe; a rotating shaft is rotatably connected to the inside of the fixing frame; a blocking block is fixedly connected to the top of the rotating shaft; the bottom of the blocking block is in contact with the top of the fixing frame; a spiral impeller is fixedly connected to the side wall of the rotating shaft; a plurality of connecting ropes are fixedly connected to the side wall of the spiral impeller, and the connecting ropes are arranged near the bottom of the rotating shaft; a knocking ball is fixedly connected to the end of the connecting rope away from the rotating shaft; this can reduce the possibility of dust clogging the filter.

[0010] Preferably, a plurality of sealing blocks are fixedly connected to the top of the water tank near the air inlet of the mounting frame, and the plurality of sealing blocks are respectively arranged at the positions corresponding to the filter screens; an opening and closing door is rotatably connected to the interior of the mounting frame through a torsion spring; the opening and closing door is arranged at the position corresponding to the sealing block; and dust can be blocked by the contact between the sealing block and the filter screen.

[0011] Preferably, a plurality of air vents are provided inside the side wall of the distribution box; a sliding block is slidably connected inside the air vent; a spring is fixed between the sliding block and the side wall of the air vent; an air outlet hole is provided inside the sliding block; this can effectively prevent external dust from entering the interior of the distribution box through the air vent.

[0012] Preferably, a plurality of guide blocks are fixedly connected to the side wall of the sliding block; the guide blocks are slidably connected at the internal position of the distribution box; this can reduce the tilting of the sliding block when it slides, making the sliding of the sliding block more stable.

[0013] Preferably, a plurality of rolling balls are buckled and connected inside the mounting frame; the rolling balls are in contact with the side walls of the distribution box body; thereby reducing the wear between the distribution box body and the mounting frame.

[0014] Preferably, a positioning block is fixedly connected to the side wall of the rotating shaft; the positioning block is rotatably connected to an inner position of the fixing frame; thus, the rotation of the rotating shaft can be made more stable.

[0015] Preferably, a plurality of anti-wear balls are provided between the fixing frame and the positioning block; the anti-wear balls are in contact with the side walls of the fixing frame and the positioning block; thus, the wear between the fixing frame and the positioning block can be reduced.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The heat dissipation device for a power station distribution box described in the present invention is designed by filling a water tank with water, injecting air into the interior of a mounting frame through an air inlet, and allowing the air to enter the interior of a distribution box through an air outlet. When the air passes through a vent pipe provided on the water tank, the water inside the water tank will cool the air. This achieves a function of making the temperature of the air entering the interior of the distribution box lower, thereby achieving a better heat dissipation effect on the interior of the distribution box. This effectively solves the problem that the high temperature of the air entering the interior of the distribution box will cause the temperature inside the distribution box to be high, resulting in a poor heat dissipation effect on the distribution box.

[0018] 2. The heat dissipation device for a power station distribution box described in the present invention pushes the mounting frame through a spring, and at the same time, the fixed bevel block and the fixed bevel groove are clamped together, thereby fixing the mounting frame. This structure design realizes the function of increasing the pressure between the fixed bevel block and the fixed bevel groove, and increasing the friction between the fixed bevel block and the fixed bevel groove, so that the mounting frame is more stable when placed inside the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 is a cross-sectional view of the power distribution box in the present invention;

[0022] Figure 3 It is a partial structural schematic diagram of the power distribution box in the present invention;

[0023] Figure 4 is a cross-sectional view of the mounting frame of the present invention;

[0024] Figure 5 It is a schematic diagram of the distribution structure of the water storage tank in the present invention;

[0025] Figure 6 It is a partial structural schematic diagram of the mounting frame in the present invention;

[0026] Figure 7 It is a partial structural schematic diagram of the fixed inclined block in the present invention;

[0027] Figure 8 It is a partial structural schematic diagram of the power distribution box and the air outlet in the present invention;

[0028] Fig. 9 yes Figure 8 A partial enlarged view of the middle A;

[0029] Fig.10 It is a schematic diagram of the local structure of the rotating shaft in the present invention.

[0030] In the figure: 1. distribution box; 2. mounting frame; 3. water tank; 4. sealing threaded cover; 5. fixing flange; 6. vent pipe; 7. outlet pipe; 8. contact plate; 9. fixing inclined block; 10. pull rope; 11. pull block; 12. fixing inclined groove; 13. fixing frame; 14. rotating shaft; 15. blocking block; 16. spiral impeller; 17. connecting rope; 18. knocking ball; 19. filter screen; 20. sealing block; 201. opening and closing door; 21. outlet hole; 22. sliding block; 23. outlet hole; 24. guide block; 25. rolling ball; 26. positioning block; 27. anti-wear ball. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figure 1 to Figure 2 As shown, a heat dissipation device for a power distribution box in an embodiment of the present invention comprises a distribution box body 1; a mounting frame 2 is slidably fitted inside the distribution box body 1; a plurality of water tanks 3 are slidably fitted inside the mounting frame 2; a sealing threaded cover 4 is threadedly connected to the inner side wall of the water tank 3; an air inlet is provided at the top of the mounting frame 2, and a fixing flange 5 is fixedly connected to the side wall of the mounting frame 2 at a position corresponding to the air inlet; a vent pipe 6 is connected to the inside of the water tank 3; an air outlet is provided on the side wall of the mounting frame 2, and an air outlet pipe 7 is fixedly connected to the side wall of the mounting frame 2 at a position corresponding to the air outlet; the air outlet pipe 7 is arranged at a position facing the inside of the distribution box body 1; the air inlet is provided at a position close to the top of the mounting frame 2, and the air outlet is provided at a position close to the bottom of the mounting frame 2 The fixed flange 5 and the air outlet pipe 7 are arranged on two opposite side walls inside the corresponding mounting frame 2; the ventilation pipes 6 are staggered inside the multiple water tanks 3; during operation, when it is necessary to dissipate heat inside the distribution box 1, the air pipe of the air pump can be connected to the fixed flange 5, and then the air pump is used to inject air into the air inlet, and then the air is injected into the mounting frame 2, and then the air moves downward through the ventilation pipe 6 on the water tank 3, and finally enters the distribution box 1 through the air outlet pipe 7. Before this, the water tank 3 can be filled with water. In the process of air passing through the ventilation pipe 6, the water inside the water tank 3 can absorb the heat in the air, so that the temperature of the air entering the distribution box 1 can be lower, so that the cooling effect on the inside of the distribution box 1 is better.

[0033] A contact plate 8 is provided on the side of the mounting frame 2; the contact plate 8 is arranged on the side of the mounting frame 2 close to the distribution box body 1; a plurality of springs are fixedly connected between the mounting frame 2 and the contact plate 8; the air outlet pipe 7 is slidably fitted at the internal position of the contact plate 8; a fixed inclined block 9 is slidably connected to the inside of the distribution box body 1; a spring is fixedly connected between the fixed inclined block 9 and the distribution box body 1; a pull rope 10 is fixedly connected to the side of the fixed inclined block 9 away from the mounting frame 2; a pull block 11 is fixedly connected to the other end of the pull rope 10; the pull rope 10 passes through the inside of the distribution box body 1; a fixed inclined groove 12 is opened on the side wall of the mounting frame 2; the fixed inclined block 9 and the fixed inclined groove 12 are arranged correspondingly; during operation, in the process of installing the mounting frame 2 into the inside of the distribution box body 1, the contact plate 8 will first contact the side wall of the distribution box body 1, and then continue to push the mounting frame 2, so that the mounting frame 2 squeezes the spring, and then the mounting frame 2 continues to extend into the interior of the distribution box 1. When the fixed inclined slot 12 moves to the position corresponding to the fixed inclined block 9, the spring pushes the fixed inclined block 9, which can make the fixed inclined block 9 stuck in the interior of the fixed inclined slot 12, so that the mounting frame 2 can be fixed. The spring pushes the mounting frame 2, which can make the pressure between the fixed inclined block 9 and the fixed inclined slot 12 greater, and the friction between the fixed inclined block 9 and the fixed inclined slot 12 greater, so that the mounting frame 2 can be more stable inside the distribution box 1. When the mounting frame 2 needs to be taken out, the pull block 11 can be pulled, so that the pull block 11 pulls the pull rope 10, and then the fixed inclined block 9 can be retracted into the interior of the distribution box 1, so that the fixed inclined block 9 is separated from the mounting frame 2, so that the mounting frame 2 can be taken out, making the removal and replacement of the mounting frame 2 more convenient.

[0034] A plurality of filters 19 are fixedly connected to the interior of the mounting frame 2; the filters 19 are arranged at positions corresponding to the air inlets of the mounting frame 2; the plurality of filters 19 are regularly arranged in a linear array inside the mounting frame 2; when working, when air enters the interior of the mounting frame 2 through the air inlet, the filters 19 will block and filter the dust in the air, thereby effectively preventing external dust from entering the interior of the distribution box 1 and adhering to the surface of the electrical components, thereby affecting the heat dissipation efficiency of the electrical components and easily causing the electrical components to generate more heat.

[0035] The interior of the ventilating pipe 6 is fixedly connected with a fixing frame 13; the interior of the fixing frame 13 is rotatably connected with a rotating shaft 14; the top of the rotating shaft 14 is fixedly connected with a blocking block 15; the bottom of the blocking block 15 is in contact with the top of the fixing frame 13; a spiral impeller 16 is fixedly connected to the side wall of the rotating shaft 14; a plurality of connecting ropes 17 are fixedly connected to the side wall of the spiral impeller 16, and the connecting ropes 17 are arranged at a position close to the bottom of the rotating shaft 14; the end of the connecting rope 17 away from the rotating shaft 14 is fixedly connected with a knocking ball 18; During operation, when air passes through the ventilation pipe 6, the air will push the spiral impeller 16, thereby causing the spiral impeller 16 to drive the rotating shaft 14 to rotate. When the rotating shaft 14 rotates, the centrifugal force can drive the knocking ball 18 to expand sideways, knocking the side wall of the ventilation pipe 6, causing the inside of the water tank 3 to vibrate. After the vibration is transmitted to the inside of the filter 19, the dust adhering to the surface of the filter 19 can be shaken off, thereby reducing the possibility of dust clogging the filter 19.

[0036] A plurality of sealing blocks 20 are fixedly connected to the top of the water tank 3 near the air inlet of the mounting frame 2, and the plurality of sealing blocks 20 are respectively arranged at the positions corresponding to the filter screen 19; an opening and closing door 201 is rotatably connected to the interior of the mounting frame 2 through a torsion spring; the opening and closing door 201 is arranged at the position corresponding to the sealing block 20; during operation, after the filter screen 19 filters the dust in the air, when the dust needs to be cleaned, the water tank 3 near the air inlet of the mounting frame 2 can be pulled out, and then the dust can be taken out, making the cleaning of the dust more convenient, when the water tank 3 is pulled out, the opening and closing door 201 will be pushed open, so that the water tank 3 can be taken out, when the water tank 3 is placed inside the mounting frame 2, the opening and closing door 201 can be opened first, and then the water tank 3 is placed inside the mounting frame 2, and by closing the opening and closing door 201, a closed space can be formed inside the mounting frame 2, and at the same time, the sealing block 20 contacts the filter screen 19 to block the dust.

[0037] A plurality of air outlet holes 21 are provided inside the side wall of the distribution box 1; a sliding block 22 is slidably connected inside the air outlet hole 21; a spring is fixedly connected between the sliding block 22 and the side wall of the air outlet hole 21; an air outlet hole 23 is provided inside the sliding block 22; during operation, when air enters the interior of the distribution box 1 through the air outlet pipe 7, the air pressure inside the distribution box 1 will increase, so that the air inside the distribution box 1 is discharged through the air outlet hole 21. In the process of air being discharged through the air outlet hole 21, the air will enter the interior of the air outlet hole 23, thereby pushing the sliding block 22 to slide. After the sliding block 22 extends out of the interior of the distribution box 1, the air will be discharged through the air outlet hole 21. The blocking of the sliding block 22 can effectively prevent external dust from entering the interior of the distribution box 1 through the air outlet hole 21.

[0038] A plurality of guide blocks 24 are fixedly connected to the side wall of the sliding block 22; the guide blocks 24 are slidably connected at the internal position of the distribution box 1; during operation, when the sliding block 22 slides inside the air outlet 21, the sliding of the guide blocks 24 is restricted by the distribution box 1, so that the sliding block 22 is less likely to tilt when sliding, and the sliding of the sliding block 22 is more stable.

[0039] The interior of the mounting frame 2 is buckled and connected with a plurality of rolling balls 25; the rolling balls 25 are in contact with the side walls of the distribution box 1; during operation, when the mounting frame 2 is placed inside the distribution box 1, the rolling balls 25 are in contact with the side walls of the distribution box 1, so that the friction between the mounting frame 2 and the distribution box 1 can be reduced, resulting in less wear between the distribution box 1 and the mounting frame 2.

[0040] A positioning block 26 is fixedly connected to the side wall of the rotating shaft 14; the positioning block 26 is rotatably connected to the internal position of the fixing frame 13; during operation, when the rotating shaft 14 rotates inside the fixing frame 13, the rotation of the positioning block 26 is restricted by the rotating shaft 14, so that the rotation of the rotating shaft 14 can be more stable.

[0041] A plurality of anti-wear balls 27 are arranged between the fixing frame 13 and the positioning block 26; the anti-wear balls 27 are in contact with the side walls of the fixing frame 13 and the positioning block 26; during operation, when the positioning block 26 rotates inside the fixing frame 13, by arranging the anti-wear balls 27 between the fixing frame 13 and the positioning block 26, the sliding friction between the fixing frame 13 and the positioning block 26 can be converted into rolling friction, so that the friction force between the fixing frame 13 and the positioning block 26 is smaller, thereby reducing the wear between the fixing frame 13 and the positioning block 26.

[0042] During operation, when it is necessary to dissipate heat inside the distribution box 1, the air pipe of the air pump can be connected to the fixed flange 5, and then air is injected into the air inlet through the air pump, and then the air is injected into the mounting frame 2, and moves downward through the vent pipe 6 on the water tank 3, and finally enters the distribution box 1 through the air outlet pipe 7. Before this, the water tank 3 can be filled with water. In the process of air passing through the vent pipe 6, the water inside the water tank 3 can absorb the heat in the air, so that the temperature of the air entering the distribution box 1 can be lower, so that the cooling effect on the inside of the distribution box 1 is better.

[0043] In the process of installing the mounting frame 2 into the distribution box 1, the contact plate 8 will first contact the side wall of the distribution box 1, and then continue to push the mounting frame 2, so that the mounting frame 2 squeezes the spring, and then the mounting frame 2 continues to extend into the distribution box 1. When the fixed inclined groove 12 moves to the position corresponding to the fixed inclined block 9, the spring pushes the fixed inclined block 9, so that the fixed inclined block 9 can be stuck into the fixed inclined groove 12, so that the mounting frame 2 can be fixed. By pushing the mounting frame 2 by the spring, the pressure between the fixed inclined block 9 and the fixed inclined groove 12 can be greater, and the friction between the fixed inclined block 9 and the fixed inclined groove 12 can be greater, so that the mounting frame 2 can be more stable inside the distribution box 1. When the mounting frame 2 needs to be taken out, the pull block 11 can be pulled so that the pull block 11 pulls the pull rope 10, and then the fixed inclined block 9 can be retracted into the interior of the distribution box 1, so that the fixed inclined block 9 is separated from the mounting frame 2, so that the mounting frame 2 can be taken out, making the removal and replacement of the mounting frame 2 more convenient.

[0044] When air enters the interior of the mounting frame 2 through the air inlet, the filter 19 will block and filter the dust in the air, thereby effectively preventing external dust from entering the interior of the distribution box 1 and adhering to the surface of the electrical components, thereby affecting the heat dissipation efficiency of the electrical components and easily causing the electrical components to generate more heat.

[0045] When air passes through the ventilation pipe 6, the air will push the spiral impeller 16, which in turn drives the rotating shaft 14 to rotate. When the rotating shaft 14 rotates, the centrifugal force can drive the knocking ball 18 to expand sideways, knocking the side wall of the ventilation pipe 6, causing the inside of the water tank 3 to vibrate. After the vibration is transmitted to the inside of the filter 19, the dust adhered to the surface of the filter 19 can be shaken off, thereby reducing the possibility of dust clogging the filter 19.

[0046] After the filter 19 filters the dust in the air, when the dust needs to be cleaned, the water tank 3 close to the air inlet of the mounting frame 2 can be pulled out, and then the dust can be taken out, making the cleaning of the dust more convenient. When the water tank 3 is pulled out, the opening and closing door 201 will be pushed open so that the water tank 3 can be taken out. When the water tank 3 is placed into the interior of the mounting frame 2, the opening and closing door 201 can be opened first, and then the water tank 3 can be placed into the interior of the mounting frame 2. By closing the opening and closing door 201, a closed space can be formed inside the mounting frame 2. At the same time, the sealing block 20 contacts the filter 19 to block the dust.

[0047] When the air enters the interior of the distribution box 1 through the air outlet pipe 7, the air pressure inside the distribution box 1 will increase, so that the air inside the distribution box 1 will be discharged through the air outlet 21. In the process of the air being discharged through the air outlet 21, the air will enter the interior of the air outlet hole 23, thereby pushing the sliding block 22 to slide. After the sliding block 22 extends out of the interior of the distribution box 1, the air will be discharged through the air outlet 21. The blocking of the sliding block 22 can effectively prevent external dust from entering the interior of the distribution box 1 through the air outlet 21.

[0048] When the sliding block 22 slides inside the air outlet 21, the sliding of the guide block 24 is restricted by the distribution box 1, so that the sliding block 22 is less likely to tilt when sliding, and the sliding of the sliding block 22 is more stable.

[0049] When the mounting frame 2 is placed inside the distribution box 1, the rolling ball 25 contacts the side wall of the distribution box 1, which can reduce the friction between the mounting frame 2 and the distribution box 1 and reduce the wear between the distribution box 1 and the mounting frame 2.

[0050] When the rotating shaft 14 rotates inside the fixing frame 13 , the rotating shaft 14 limits the rotation of the positioning block 26 , so that the rotation of the rotating shaft 14 can be more stable.

[0051] When the positioning block 26 rotates inside the fixing frame 13, by arranging the anti-wear balls 27 between the fixing frame 13 and the positioning block 26, the sliding friction between the fixing frame 13 and the positioning block 26 can be changed into rolling friction, so that the friction force between the fixing frame 13 and the positioning block 26 is smaller, thereby reducing the wear between the fixing frame 13 and the positioning block 26.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat dissipation device for a power distribution box in a power station, characterized in that: The invention comprises a power distribution box (1); a mounting frame (2) is slidably matched inside the power distribution box (1); a plurality of water storage tanks (3) are slidably matched inside the mounting frame (2); a sealing threaded cover (4) is threadedly connected inside the side wall of the water storage tank (3); an air inlet is provided at the top of the mounting frame (2), and a fixing flange (5) is fixedly connected at a position corresponding to the air inlet on the side wall of the mounting frame (2); a vent pipe (6) is connected inside the water storage tank (3); a sealing threaded cover (4) is threadedly connected inside the side wall of the mounting frame (2); An air outlet is provided, and an air outlet pipe (7) is fixedly connected to a position on the side wall of the mounting frame (2) corresponding to the air outlet; the air outlet pipe (7) is arranged at a position facing the inside of the distribution box (1); the air inlet is opened at a position close to the top of the mounting frame (2), and the air outlet is opened at a position close to the bottom of the mounting frame (2); the fixing flange (5) and the air outlet pipe (7) are arranged on two opposite side walls inside the corresponding mounting frame (2); and the ventilation pipes (6) are arranged in a staggered manner inside a plurality of water storage tanks (3).

2. A heat dissipation device for a power distribution box in a power station according to claim 1, characterized in that: A contact plate (8) is provided on the side of the mounting frame (2); the contact plate (8) is arranged on a side of the mounting frame (2) close to the distribution box (1); a plurality of springs are fixedly connected between the mounting frame (2) and the contact plate (8); the air outlet pipe (7) is slidably fitted at an internal position of the contact plate (8); a fixed inclined block (9) is slidably connected inside the distribution box (1); a spring is fixedly connected between the fixed inclined block (9) and the distribution box (1); a pull rope (10) is fixedly connected to the side of the fixed inclined block (9) away from the mounting frame (2); the other end of the pull rope (10) is fixedly connected to a pull block (11); the pull rope (10) passes through the inside of the distribution box (1); a fixed inclined groove (12) is opened on the side wall of the mounting frame (2); the fixed inclined block (9) and the fixed inclined groove (12) are arranged correspondingly.

3. A heat dissipation device for a power distribution box in a power station according to claim 2, characterized in that: A plurality of filter screens (19) are fixedly connected to the interior of the mounting frame (2); the filter screens (19) are arranged at positions corresponding to the air inlet of the mounting frame (2); and the plurality of filter screens (19) are regularly arranged in a linear array inside the mounting frame (2).

4. A heat dissipation device for a power distribution box in a power station according to claim 1, characterized in that: A fixing frame (13) is fixedly connected inside the ventilation pipe (6); a rotating shaft (14) is rotatably connected inside the fixing frame (13); a blocking block (15) is fixedly connected to the top of the rotating shaft (14); the bottom of the blocking block (15) contacts the top of the fixing frame (13); a spiral impeller (16) is fixedly connected to the side wall of the rotating shaft (14); a plurality of connecting ropes (17) are fixedly connected to the side wall of the spiral impeller (16), and the connecting ropes (17) are arranged at a position close to the bottom of the rotating shaft (14); a knocking ball (18) is fixedly connected to one end of the connecting rope (17) away from the rotating shaft (14).

5. A heat dissipation device for a power distribution box in a power station according to claim 3, characterized in that: A plurality of sealing blocks (20) are fixedly connected to the top of the water storage tank (3) near the air inlet of the mounting frame (2), and the plurality of sealing blocks (20) are respectively arranged at positions corresponding to the filter screen (19); an opening and closing door (201) is rotatably connected to the interior of the mounting frame (2) via a torsion spring; and the opening and closing door (201) is arranged at positions corresponding to the sealing blocks (20).

6. A heat dissipation device for a power distribution box in a power station according to claim 2, characterized in that: A plurality of air outlet holes (21) are provided inside the side wall of the distribution box (1); a sliding block (22) is slidably connected inside the air outlet hole (21); a spring is fixedly connected between the sliding block (22) and the side wall of the air outlet hole (21); and an air outlet through hole (23) is provided inside the sliding block (22).

7. A heat dissipation device for a power distribution box in a power station according to claim 6, characterized in that: A plurality of guide blocks (24) are fixedly connected to the side wall of the sliding block (22); the guide blocks (24) are slidably connected at internal positions of the distribution box (1).

8. The heat dissipation device for a power distribution box in a power station according to claim 5, characterized in that: A plurality of rolling balls (25) are buckled and connected inside the mounting frame (2); the rolling balls (25) are in contact with the side walls of the distribution box (1).

9. A heat dissipation device for a power distribution box in a power station according to claim 4, characterized in that: A positioning block (26) is fixedly connected to the side wall of the rotating shaft (14); the positioning block (26) is rotatably connected to an inner position of the fixing frame (13).

10. A heat dissipation device for a power distribution box in a power station according to claim 9, characterized in that: A plurality of anti-wear balls (27) are arranged between the fixing frame (13) and the positioning block (26); the anti-wear balls (27) are in contact with the side walls of the fixing frame (13) and the positioning block (26).

Citation Information

Patent Citations

  • An energy-saving distribution box with good heat dissipation

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