CN207320654U - A kind of heat dissipation equipment of high-tension distribution box - Google Patents

Abstract

The utility model discloses a heat dissipation device for a high-voltage distribution box, which comprises a distribution box cover and a distribution box body. A ventilation pipe is arranged at the bottom end of the distribution box cover, and a distribution Electric box body, a filter screen is installed on the upper surface of the distribution box body connected to the ventilation pipe, an exhaust fan is installed on the lower end of the filter screen and the upper surface of the distribution box body, and a temperature sensor is installed on one side of the exhaust fan. The right side of the temperature sensor is provided with a temperature sensor, the inner wall of the distribution box is provided with a heat insulation layer, and the side wall of the distribution box is provided with convection cooling holes. Through the convection cooling holes, the air can form convection and discharge the heat. Since the hot air will move upward, the hot air will be discharged out of the box through the exhaust fan. The temperature processor can control the rotation of the exhaust fan and handle the humidity by itself according to the temperature in the distribution box. The device can detect the humidity inside the distribution box to prevent liquid leakage.

Description

A heat dissipation device for a high-voltage distribution box

technical field

The utility model relates to a cooling device, in particular to a cooling device for a high-voltage distribution box.

Background technique

Power distribution box is assembled in closed or semiclosed metal safe by electrical wiring requirement by switchgear, measuring instrument, protective device and auxiliary equipment or on screen width, forms low-voltage distribution equipment. The low-voltage electrical appliances in the distribution box are composed of fuses, AC contactors, residual current action protectors, capacitors and meters that emit heat during operation. The upper limit of the air temperature in the distribution box does not exceed 40°C; the ambient air temperature is 24h The average value of the temperature does not exceed 35°C; the lower limit of the ambient air temperature is not lower than -5°C or -25°C so as not to damage the electrical components. The distribution box for the transformation of the rural power grid operates outdoors, and it not only receives high temperatures from direct sunlight, but also At the same time, it will also generate heat during operation, so in the summer high temperature season, the temperature inside the box will reach above 60°C. Failure caused by overheating.

However, due to cost considerations, the current distribution box does not install cooling equipment or installs cooling equipment. The distribution box with cooling equipment lacks the ability to automatically control heat dissipation. The existing cooling equipment is to install a high-power axial flow fan in the box. And open cooling holes, so that the wind blown by the axial flow fan forms an air-cooling cycle, and quickly blows the heat in the distribution box out of the box to achieve the effect of heat dissipation. However, this method not only has slow heat dissipation, but also lacks control ability, and it runs for a long time. A large amount of energy is consumed, the outdoor distribution box is exposed to direct sunlight, and there is no heat insulation device to prevent external heat from entering the distribution box.

Utility model content

The utility model provides a heat dissipation device for a high-voltage distribution box, which solves the problems of poor heat dissipation effect of the existing distribution box, lack of control of the heat dissipation device, large energy consumption and lack of blocking external heat energy.

In order to solve the above technical problems, the utility model provides the following technical solutions:

The utility model relates to a heat dissipation device for a high-voltage distribution box, comprising a distribution box cover and a distribution box body, a ventilation pipe is arranged at the bottom end of the distribution box cover, and a distribution box is arranged at the lower end of the ventilation pipe The box body, the upper surface of the distribution box body connected to the ventilation pipe is installed with a filter screen, the lower end of the filter screen and the upper surface of the distribution box box body are installed with an exhaust fan, and a temperature sensor is installed on one side of the exhaust fan, The right side of the temperature sensor is provided with a humidity sensor, the inner wall of the distribution box is provided with a heat insulation layer, the side wall of the distribution box is provided with convection cooling holes, and the distribution box A liquid conveying pump is arranged inside the body, the outlet pipe end of the liquid conveying pump is connected with a liquid conveying pipe, a heat absorbing device is arranged on the liquid conveying pipe, and a cooling fin is connected at the other end of the liquid conveying pipe, and the heat dissipation A heat dissipation pipe is arranged inside the sheet, and the heat sink is located outside and at the lower end of the distribution box body, and a temperature processor and a humidity processor are arranged in the distribution box body, and the temperature sensor and the The temperature processor is electrically connected, the temperature processor is electrically connected to the exhaust fan, the temperature sensor, the temperature processor, and the exhaust fan are all electrically connected to the power supply, and the humidity sensor is electrically connected to the humidity processor. The humidity processor is electrically connected to the liquid delivery pump, and the humidity sensor, humidity processor and liquid delivery pump are all electrically connected to the power supply.

As a preferred technical solution of the utility model, the box body of the distribution box is a cuboid structure.

As a preferred technical solution of the present utility model, there are multiple heat absorbing devices, which are evenly distributed in the distribution box.

As a preferred technical solution of the present invention, there are multiple heat pipes, which are evenly distributed in the heat sink.

As a preferred technical solution of the utility model, two groups of convection cooling holes are provided, and are symmetrically distributed on the left and right side panels of the distribution box body.

As a preferred technical solution of the utility model, there are three exhaust fans, which are evenly distributed on the upper surface of the distribution box body.

As a preferred technical solution of the present invention, the heat absorbing device is composed of heat absorbing material, heat absorbing coating and liquid delivery pipe.

The beneficial effects achieved by the utility model are: the air can form convection through the convection cooling holes, and the air will naturally take out the heat in the box. Because the heat heats the air in the distribution box, the hot air will move upwards, and the heat will be dissipated by the exhaust fan. The air is discharged out of the box, and the exhaust system controlled by the temperature processor ensures that the heat can be quickly discharged out of the distribution box. It can also control the rotation of the exhaust fan according to the temperature in the distribution box. The humidity processor can detect the humidity inside the distribution box. , to prevent the liquid leakage from causing damage to the electrical components in the distribution box when the water cooling device is working. Enter.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model.

In the attached picture:

Fig. 1 is the overall structural diagram of the cooling equipment of a kind of high-voltage distribution box of the present utility model;

Fig. 2 is a schematic diagram of the working principle of the exhaust fan of the heat dissipation device of the high-voltage distribution box of the present invention;

Fig. 3 is a schematic diagram of the working principle of the liquid delivery pump of the heat dissipation equipment of the high-voltage distribution box of the present invention;

In the figure: 1. The cover of the distribution box; 2. The body of the distribution box; 3. The liquid delivery pump; 4. The heat absorbing device; 5. The liquid delivery pipe; Thermal layer; 9. Convection cooling holes; 10. Filter screen; 11. Ventilation pipe; 12. Exhaust fan; 13. Temperature sensor; 14. Humidity sensor; 15 Power supply; 16. Temperature processor; 17. Humidity processor.

Detailed ways

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

Embodiment: As shown in Figure 1-3, the utility model is a heat dissipation device for a high-voltage distribution box, including a distribution box cover 1 and a distribution box body 2, and the bottom end of the distribution box cover 1 is provided with ventilation Pipe 11, the lower end of the ventilation pipe 11 is provided with a distribution box body 2, and the upper surface of the distribution box body 2 is connected to the ventilation pipe 11. An exhaust fan 12 is installed on the surface, a temperature sensor 13 is arranged on one side of the exhaust fan 12, a humidity sensor 14 is arranged on the right side of the temperature sensor 13, a heat insulation layer 8 is arranged on the inner wall of the distribution box body 2, and the distribution box body 2 One side wall is provided with a convection cooling hole 9, a liquid delivery pump 3 is provided inside the distribution box body 2, the outlet pipe end of the liquid delivery pump 3 is connected to a liquid delivery pipe 5, and a heat absorbing device is arranged on the liquid delivery pipe 5 4. The other end of the liquid delivery pipe 5 is connected to a cooling fin 7, and a cooling tube 6 is arranged inside the cooling fin 7. The cooling fin 7 is outside the distribution box body 2 and is located at the lower end of the distribution box body 2. The distribution box body 2 is provided with a temperature processor 16 and a humidity processor 17, the temperature sensor 13 is electrically connected to the temperature processor 16, the temperature processor 16 is electrically connected to the exhaust fan 12, the temperature sensor 13, the temperature processor 16 and the exhaust fan 12 Both are electrically connected to the power supply 15, the humidity sensor 14 is electrically connected to the humidity processor 17, the humidity processor 17 is electrically connected to the liquid delivery pump 3, and the humidity sensor 14, the humidity processor 17 and the liquid delivery pump 3 are all connected to the The power supply 15 is electrically connected.

The distribution box casing 2 is a cuboid structure, which is convenient for installation and fixing and placement of electrical components.

There are multiple heat absorbing devices 4, which are evenly distributed in the distribution box body 2, so as to improve the heat absorbing efficiency.

There are a plurality of heat dissipation pipes 6, and they are evenly distributed in the heat dissipation fins 7 to improve heat dissipation efficiency.

There are two groups of convection cooling holes 9, which are symmetrically distributed on the left and right side panels of the distribution box body 2 to form air convection, and the convection air will take out a part of the heat of the distribution box body 2.

Exhaust fan 12 is provided with three, and is evenly distributed on the upper surface in the distribution box casing 2, improves the efficient of row place hot air.

The heat-absorbing device 4 is composed of a heat-absorbing material, a heat-absorbing coating and a liquid delivery pipe 5, which improves the absorption of heat in the box body 2 of the distribution box.

Specifically, when in use, the distribution box cover 1 and the distribution box body 2 are fixed together, the distribution box cover 1 can prevent rainwater from entering the distribution box body 2, and the distribution box body 2 The convection cooling holes 9 provided on the side plates can allow the air entering and leaving the distribution box body 2 to form convection, increase the air volume entering and leaving, the convective air can bring out heat, reduce the temperature in the distribution box body 2, and pass through the temperature sensor 13 The temperature information in the detection box is transmitted to the temperature processor 16, and the temperature processor 16 is set to control the operation of the exhaust fan 12 when the temperature in the distribution box casing 2 reaches 30 degrees. Because the heat in the distribution box casing 2 can heat the air, The hot air moves upwards, and as the fan blades in the exhaust fan 12 rotate, the hot air enters the ventilation pipe 11 through the filter screen 10, and finally discharges out of the distribution box. When the temperature in the box is lower than 30 degrees, the temperature processor 16 will Exhaust fan 12 issues stop information to realize automatic control and save energy consumption. Since the water cooling device may accidentally leak, the humidity sensor 14 can detect the air humidity in the distribution box body 2. When the humidity exceeds the set value, the humidity The processor 17 issues an order to stop the operation of the liquid delivery pump 3, so as to reduce the damage to the electrical components in the distribution box body 2 caused by the accidental leakage of the liquid. The pressure of the delivery liquid enters the heat sink 7 from the delivery pipe 5, the heat dissipation pipe 6 can increase the heat dissipation area and improve the heat dissipation efficiency, and the heat insulation layer 8 can prevent external heat from entering the distribution box body 2.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (7)

1. a kind of heat dissipation equipment of high-tension distribution box, including distribution box case lid (1) and distribution box body (2), it is characterised in that institute State distribution box case lid (1) bottom and be provided with ventilation duct (11), ventilation duct (11) lower end is provided with distribution box body (2), institute State connection ventilation duct (11) place of the upper surface in distribution box body (2) and filter screen (10), filter screen (10) lower end are installed And distribution box body (2) interior upper surface is provided with ventilating fan (12), ventilating fan (12) side is provided with temperature inductor (13), humidity sensor (14) is provided with the right side of the temperature inductor (13), is provided with distribution box body (2) inner wall Thermal insulation layer (8), distribution box body (2) one side wall are provided with thermal convection holes (9), are set inside the distribution box body (2) Liquid delivery pump (3) is equipped with, the water outlet pipe end of the liquid delivery pump (3) is connected with liquid delivery tube (5), the liquid conveying Heat sink (4) is provided with pipe (5), liquid delivery tube (5) other end is connected with heat sink (7), the heat sink (7) Heat-dissipating pipe (6) is inside provided with, the heat sink (7) is exterior in distribution box body (2) and is located at distribution box body (2) lower end, institute State in distribution box body (2) and be provided with Temperature processor (16) and humidity processor (17), the temperature inductor (13) and temperature Spend processor (16) to be electrically connected, the Temperature processor (16) and ventilating fan (12) are electrically connected, the temperature inductor (13), Temperature processor (16) and ventilating fan (12) are electrically connected with power supply (15), the humidity sensor (14) and humidity Processor (17) is electrically connected, and the humidity processor (17) and liquid delivery pump (3) are electrically connected, the humidity sensor (14), humidity processor (17) and liquid delivery pump (3) are electrically connected with power supply (15).

A kind of 2. heat dissipation equipment of high-tension distribution box according to claim 1, it is characterised in that the distribution box body (2) it is rectangular parallelepiped structure.

A kind of 3. heat dissipation equipment of high-tension distribution box according to claim 1, it is characterised in that the heat sink (4) It is provided with multiple, and is evenly distributed in distribution box body (2).

4. the heat dissipation equipment of a kind of high-tension distribution box according to claim 1, it is characterised in that the heat-dissipating pipe (6) sets It is equipped with multiple, and is evenly distributed in heat sink (7).

A kind of 5. heat dissipation equipment of high-tension distribution box according to claim 1, it is characterised in that the thermal convection holes (9) two groups are provided with, and is symmetrically distributed on distribution box body (2) left side plate.

6. the heat dissipation equipment of a kind of high-tension distribution box according to claim 1, it is characterised in that the ventilating fan (12) sets Three are equipped with, and the upper surface being evenly distributed in distribution box body (2).

A kind of 7. heat dissipation equipment of high-tension distribution box according to claim 1, it is characterised in that the heat sink (4) It is made of heat-absorbing material, heat absorbing coating and liquid delivery tube (5).