Water-cooling heat dissipation device for outdoor power distribution cabinet

Abstract

The utility model discloses a water-cooling heat dissipation device for an outdoor power distribution cabinet, which is characterized in that a heat absorption water tank is arranged in a cabinet body and is matched with a heat conduction frame covering a heating part of electrical equipment, heat is brought into a heat dissipation water tank II through a water outlet pipe I and a water outlet pipe II by water or cooling liquid in the heat absorption water tank, and the heat is dissipated by the heat dissipation water tank II; the cooling water or cooling liquid is cooled in the heat absorption water tank through the first water return pump, then the cooled water or cooling liquid is sent back into the heat absorption water tank through the second water return pump to continue cooling the interior of the cabinet, heat dissipation is conducted on the electrical equipment and the interior of the cabinet in a water cooling circulation mode, and the cooling effect and the cooling efficiency are greatly improved. And the temperature of the underground space is lower than that of the ground, so that water or cooling liquid in the heat dissipation water tank II can be cooled more easily, the influence of external temperature and sunlight irradiation is avoided, the power distribution cabinet is suitable for being used in regions with higher average temperature, and the adverse influence of high temperature on electronic components in the power distribution cabinet is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of outdoor distribution cabinets, and particularly relates to a water-cooled heat dissipation device for an outdoor distribution cabinet. Background Art

[0002] An outdoor distribution cabinet is a low-voltage power distribution device used to receive and distribute electric energy in a power supply system. It is generally installed outdoors and is used to control street lights, substations and other places. The electrical equipment inside the outdoor distribution cabinet generates heat during operation. Usually, the heat is directly discharged outside the cabinet for cooling and heat dissipation. However, in areas with relatively high average temperatures, such as southern China, Turpan region, Sichuan Basin, and the river valleys of the Yunnan-Guizhou Plateau, due to the influence of geographical location and geographical environment, the temperature is relatively high, and it is difficult to dissipate heat. High-temperature weather is likely to occur. The outdoor distribution cabinets in these areas are affected by multiple factors such as direct sunlight, ground reflected heat, and self-heating of internal equipment, resulting in a sharp rise in the temperature inside the cabinet. The high-temperature environment not only accelerates the aging of electronic components inside the distribution cabinet and shortens their service life, but may also cause component burnout, threatening the safety and stability of the power system. Therefore, we propose a water-cooled heat dissipation device for an outdoor distribution cabinet. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a water-cooled heat dissipation device for an outdoor distribution cabinet, which is suitable for use in areas with relatively high average temperatures. It effectively avoids the adverse effects of high temperature on the internal electronic components of the distribution cabinet, extends the service life of electrical equipment, and ensures the safety and stability of the operation of the power system, and can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A water-cooled heat dissipation device for an outdoor distribution cabinet, including a cabinet body. A plurality of water absorption tanks are arranged inside the cabinet body. A heat conduction frame connected to the heating equipment inside the cabinet is arranged on the side surface of the water absorption tank. A first water outlet pipe is arranged on the lower surface of the water absorption tank. The first water outlet pipe penetrates through the outside of the cabinet body and is communicated with a second water outlet pipe. A second valve is arranged on the second water outlet pipe at a position below the first water outlet pipe. The end of the second water outlet pipe penetrates into an underground space opened underground and is communicated with a second heat dissipation tank. The second heat dissipation tank is arranged in the underground space. A second return water pipe is arranged on the upper surface of the second heat dissipation tank. The second return water pipe penetrates through the ground and penetrates into the cabinet body to be communicated with the water absorption tank, and a third valve is arranged outside the second return water pipe. A second return water pump is arranged inside the water absorption tank. The water inlet end of the second return water pump is connected to the second return water pipe.

[0005] As a preferred technical solution of the present utility model, the first water outlet pipe is L-shaped. The lower end of the first water outlet pipe is communicated with the second water outlet pipe, and the upper end of the first water outlet pipe is communicated with a first heat dissipation water tank arranged on the outer surface of the cabinet body. A first valve and a circulation pump are respectively arranged at the upper end of the first water outlet pipe. A first return water pipe is arranged on the upper surface of the first heat dissipation water tank. The first return water pipe penetrates into the cabinet body and is communicated with the heat absorption water tank. A first return water pump is installed on the first return water pipe.

[0006] As a preferred technical solution of the present utility model, heat dissipation fins are arranged on the outer surface of the first heat dissipation water tank and the outer surface of the second heat dissipation water tank.

[0007] As a preferred technical solution of the present utility model, the underground space is communicated with two air inlet channels opened on the ground, and the two air inlet channels are respectively arranged on both sides of the cabinet body.

[0008] As a preferred technical solution of the present utility model, the air inlet channels are all L-shaped, and a wind guide plate is arranged at the air inlet of the air inlet channel. The wind guide plate is arranged close to the cabinet body.

[0009] As a preferred technical solution of the present utility model, the wind guide plate is inclined, and the bottom end of the wind guide plate is close to the cabinet body and the top end is far from the cabinet body.

[0010] As a preferred technical solution of the present utility model, the wind guide plate is an arc-shaped plate, and its outer arc faces the cabinet body.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: A heat absorption water tank is arranged in the cabinet body and is matched with a heat conduction frame covering the heat generating part of the electrical equipment, and the heat is directly conducted into the heat absorption water tank. The water or coolant in the heat absorption water tank brings the heat into the second heat dissipation water tank through the first water outlet pipe and the second water outlet pipe. The second heat dissipation water tank dissipates the heat, and then the cooled water or coolant is sent back to the heat absorption water tank through the second return water pump to continue cooling the inside of the cabinet. The electrical equipment and the inside of the cabinet are cooled by means of a water cooling cycle, greatly improving the cooling effect and heat dissipation efficiency. At the same time, since the second heat dissipation water tank is arranged in the underground space under the ground, and the temperature of the underground space is lower than that of the ground, it is easier to cool the water or coolant in the second heat dissipation water tank, and it is not affected by the external temperature and sunlight irradiation. It is suitable for use in areas with relatively high average temperatures, effectively avoiding the adverse effects caused by high temperature on the internal electronic components of the power distribution cabinet, prolonging the service life of the electrical equipment, and ensuring the safety and stability of the operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the present utility model;

[0013] Figure 2 is a side view structural schematic diagram of the present utility model;

[0014] Figure 3 Structural schematic diagram of another embodiment of the present utility model;

[0015] Figure 4 Structural schematic diagram of the air deflector of the present utility model.

[0016] In the figure: 1 cabinet body, 2 hot water absorption tank, 3 heat conduction frame, 4 first water outlet pipe, 5 first heat dissipation tank, 6 first valve, 7 circulation pump, 8 first return water pipe, 9 first return water pump, 10 second water outlet pipe, 11 second valve, 12 second heat dissipation tank, 13 second return water pipe, 14 third valve, 15 second return water pump, 16 heat sink, 17 underground space, 18 air inlet channel, 19 air deflector. Specific implementation manner

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figure 1-2 , the present utility model provides a technical solution: a water-cooled heat dissipation device for an outdoor power distribution cabinet, including a cabinet body 1, 2-6 hot water absorption tanks 2 are arranged inside the cabinet body 1, and a heat conduction frame 3 connected to the heating equipment inside the cabinet body 1 is arranged on the side surface of the hot water absorption tank 2. The hot water absorption tank 2 and the heat conduction frame 3 can be flexibly set according to the number of equipment in the cabinet. The size of the heat conduction frame 3 is made according to the heating surface of the equipment connected thereto, so that it can fit the heating surface of the equipment. The heat conduction frame 3 is made of aluminum alloy, with fast heat conduction and can quickly dissipate heat.

[0019] A first water outlet pipe 4 is arranged on the lower surface of the hot water absorption tank 2. The first water outlet pipe 4 passes through the outside of the cabinet body 1 and is communicated with the second water outlet pipe 10. A second valve 11 is arranged on the second water outlet pipe 10 at the lower side of the first water outlet pipe 4, which is used to control the water or coolant in the hot water absorption tank 2 to be transported into the second water outlet pipe 10. The end of the second water outlet pipe 10 penetrates into the underground space 17 opened underground and is communicated with the second heat dissipation tank 12. A second return water pipe 13 is arranged on the upper surface of the second heat dissipation tank 12. The second return water pipe 13 passes through the ground and penetrates into the cabinet body 1 to be communicated with the hot water absorption tank 2. A third valve 14 is arranged outside the second return water pipe 13. The third valve 14 is a normally closed valve. A second return water pump 15 is arranged in the hot water absorption tank 2. The water inlet end of the second return water pump 15 is connected to the second return water pipe 13. The cooled water or coolant in the second heat dissipation tank 12 is sent back into the hot water absorption tank 2 by the second return water pump 15 to continue absorbing heat to cool the equipment. When the second return water pump 15 is opened, the third valve 14 is opened simultaneously.

[0020] In this application, a hot water absorption tank 2 is arranged in the cabinet body 1 and cooperates with a heat conduction frame 3 wrapped around the heat generating part of the electrical equipment. The heat is directly conducted into the hot water absorption tank 2. The water or coolant in the hot water absorption tank 2 brings the heat into the second heat dissipation tank 12 through the first water outlet pipe 4 and the second water outlet pipe 10. The second heat dissipation tank 12 dissipates the heat, and then the cooled water or coolant is sent back into the hot water absorption tank 2 through the second water return pump 15 to continue cooling the inside of the cabinet. By means of water cooling circulation, heat dissipation is carried out for the electrical equipment and the inside of the cabinet, greatly improving the cooling effect and heat dissipation efficiency. At the same time, since the second heat dissipation tank 12 is arranged in the underground space 17 under the ground, and the temperature of the underground space 17 is lower than that of the ground, it is easier to cool the water or coolant in the second heat dissipation tank 12, and it is not affected by the external temperature and sunlight irradiation. It is suitable for use in areas with relatively high average temperatures, effectively avoiding the adverse effects caused by high temperature on the internal electronic components of the power distribution cabinet, prolonging the service life of the electrical equipment, and ensuring the safety and stability of the operation of the power system.

[0021] In Turpan area with large day-night temperature difference, etc., the temperature is high during the day and low at night, making the cooling effect of the second hot water absorption tank 12 located underground not obvious. Therefore, we also propose another preferred technical solution: the first water outlet pipe 4 is L-shaped, the lower end of the first water outlet pipe 4 is communicated with the second water outlet pipe 10, the upper end of the first water outlet pipe 4 is communicated with the first heat dissipation tank 5 arranged on the outer surface of the cabinet body 1, and a first valve 6 and a circulation pump 7 are respectively arranged at the upper end of the first water outlet pipe 4. The water or coolant in the hot water absorption tank 2 is sent into the heat dissipation tank 5 through the circulation pump 7 for heat dissipation and cooling by the external low temperature; a first water return pipe 8 is arranged on the upper surface of the first heat dissipation tank 5, the first water return pipe 8 penetrates into the cabinet body 1 and is communicated with the hot water absorption tank 2, and a first water return pump 9 is installed on the first water return pipe 8. The cooled water or coolant in the first heat dissipation tank 5 is sent back into the hot water absorption tank 2 through the first water return pump 9 to ensure the heat dissipation and cooling effect at night.

[0022] When using the first heat dissipation tank 5 for water cooling circulation and cooling, the second valve 11, the third valve 13, the second water return pump 15, etc. are all in the closed state, that is, the second heat dissipation tank 12 is not used to participate in the water cooling circulation.

[0023] Optionally, a temperature sensor is further provided in the hot water absorption tank 2 for detecting the temperature of the water or coolant in the hot water absorption tank 2. The temperature sensor, the circulation pump 7, the first return water pump 9, the second return water pump 15, etc. are all electrically connected to a controller provided inside the cabinet 1. The controller can be a commonly used PLC controller, a single-chip microcomputer or other types of microprocessors, such as a single-chip microcomputer of the 80C51 series. The temperature sensor detects the temperature and transmits a corresponding signal to the controller. The controller intelligently controls the rotation speeds of the circulation pump 7, the first return water pump 9, and the second return water pump 15 according to a preset program, so as to achieve rapid circulation at higher temperatures and normal circulation at lower temperatures, ensuring that the temperature of the electrical equipment inside the cabinet 1 is within the normal value.

[0024] The first valve 6, the second valve 11, and the third valve 14 all adopt commonly used electric control valves such as solenoid valves, and are all electrically connected to a controller provided inside the cabinet 1. The temperature sensor, the controller, the circulation pump 7, the first return water pump 9, the second return water pump 15, the first valve 6, the second valve 11, and the third valve 14 used in this application are all commonly used electronic components in the prior art. Their specific structures, working principles, circuit connections, etc. are all well-known technologies and will not be elaborated here.

[0025] In a preferred technical solution, heat dissipation fins 16 are provided on the outer surfaces of the first heat dissipation tank 5 and the second heat dissipation tank 12. The heat dissipation fins 16 can be flat fins or scale fins, which are used to improve the heat dissipation speed of the first heat dissipation tank 5 and the second heat dissipation tank 12 and further improve the heat dissipation effect.

[0026] Please refer to Figure 3-4 , the present utility model also provides another embodiment, which is substantially the same as the foregoing embodiment, except that: the underground space 17 is communicated with two air inlet channels 18 opened on the ground. The two air inlet channels 18 are respectively arranged on both sides of the cabinet 1. The air inlet through the air inlet channels 18 increases the air fluidity in the underground space 17, thereby taking away the heat in the underground space 17 and making it easier to cool the water or coolant in the second heat dissipation tank 12.

[0027] In a preferred technical solution, the air inlet channels 18 are all L-shaped, and a wind guiding plate 19 is provided at the air inlet of the air inlet channels 18. The wind guiding plate 19 is arranged close to the cabinet 1. When there is wind blowing outside, it is blocked by the wind guiding plate 19 and introduced into the air inlet channels 18, further increasing the air fluidity in the underground space 17.

[0028] In a further preferred technical solution, the wind guiding plate 19 is inclined, and the bottom end of the wind guiding plate 19 is close to the cabinet 1 and the top end is far from the cabinet 1, making it easier for the wind reaching the wind guiding plate 19 from the outside to enter the air inlet channels 18.

[0029] A further preferred technical solution is that the air deflector 19 is an arc-shaped plate, and its outer arc faces the cabinet body 1, which can increase the area of the air deflector 19 facing the wind direction, so as to introduce more air into the air inlet channel 18 and improve the cooling effect of the radiator 12.

[0030] The parts not disclosed in the present utility model are all prior arts, and their specific structures, materials and working principles will not be elaborated. Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A water-cooled heat dissipation device for an outdoor power distribution cabinet, comprising a cabinet body (1), characterized in that: Inside the cabinet body (1), there are several hot water absorption tanks (2). On the side surface of the hot water absorption tank (2), there is a heat conduction frame (3) connected to the heating equipment inside the cabinet body (1). On the lower surface of the hot water absorption tank (2), there is a first outlet pipe (4). The first outlet pipe (4) penetrates the outside of the cabinet body (1) and is communicated with a second outlet pipe (10). A second valve (11) is arranged on the second outlet pipe (10) at the lower side of the first outlet pipe (4). The end of the second outlet pipe (10) penetrates into an underground space (17) dug underground and is communicated with a second heat dissipation tank (12). The second heat dissipation tank (12) is arranged in the underground space (17). On the upper surface of the second heat dissipation tank (12), there is a second return pipe (13). The second return pipe (13) penetrates the ground and then penetrates into the cabinet body (1) to be communicated with the hot water absorption tank (2). And a third valve (14) is arranged outside the second return pipe (13). Inside the hot water absorption tank (2), there is a second return water pump (15). The water inlet end of the second return water pump (15) is connected to the second return pipe (13).

2. The water-cooled heat dissipation device for an outdoor power distribution cabinet according to claim 1, wherein: The first outlet pipe (4) is L-shaped. The lower end of the first outlet pipe (4) is communicated with the second outlet pipe (10). The upper end of the first outlet pipe (4) is communicated with a first heat dissipation tank (5) arranged on the outer side surface of the cabinet body (1). And a first valve (6) and a circulation pump (7) are respectively arranged at the upper end of the first outlet pipe (4). On the upper surface of the first heat dissipation tank (5), there is a first return pipe (8). The first return pipe (8) penetrates into the cabinet body (1) and is communicated with the hot water absorption tank (2). A first return water pump (9) is installed on the first return pipe (8).

3. The water-cooled heat dissipation device for an outdoor power distribution cabinet according to claim 2, characterized in that: Heat dissipation fins (16) are arranged on the outer side surfaces of both the first heat dissipation tank (5) and the second heat dissipation tank (12).

4. The water-cooling heat dissipation device for an outdoor power distribution cabinet according to claim 3, wherein: The underground space (17) is communicated with two air inlet channels (18) opened on the ground. The two air inlet channels (18) are respectively arranged on both sides of the cabinet body (1).

5. The water-cooled heat dissipation device for an outdoor power distribution cabinet according to claim 4, characterized in that: The air inlet channels (18) are all L-shaped. And a wind guiding plate (19) is arranged at the air inlet of the air inlet channel (18). The wind guiding plate (19) is arranged close to the cabinet body (1).

6. The water-cooled heat dissipation device for an outdoor power distribution cabinet according to claim 5, characterized in that: The wind guiding plate (19) is inclined. And the bottom end of the wind guiding plate (19) is close to the cabinet body (1), while the top end is far away from the cabinet body (1).

7. The water-cooled heat dissipation device for an outdoor power distribution cabinet according to claim 5, characterized in that: The wind guiding plate (19) is an arc-shaped plate, and its outer arc faces the cabinet body (1).

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