CN220491702U

CN220491702U - Cooling device for power electronic equipment transformer

Info

Publication number: CN220491702U
Application number: CN202322107161.8U
Authority: CN
Inventors: 丁傲; 姜超
Original assignee: Changchun Power Supply Co Of State Grid Jilinsheng Electric Power Supply Co
Current assignee: Changchun Power Supply Co Of State Grid Jilinsheng Electric Power Supply Co
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-02-13
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a power electronic equipment transformer cooling device, which comprises a box body, wherein a transformer placing bin and a cooling bin are arranged in the box body; the bottom of the cooling bin is provided with a first motor, a first fan blade is connected above the first motor, and an evaporator is arranged above the first fan blade; the evaporator is connected with a compressor, a heat exchanger and an expansion valve in sequence through connecting pipes to form a circulation loop; the side surfaces of the cooling bin are provided with air inlets; a side air outlet is formed in the upper side of the transformer placing bin, an upper air outlet is formed in the top of the transformer placing bin, and a temperature sensor is arranged on one side of the top of the transformer placing bin; the front end of the box body is provided with a box door; the top of the box body is provided with a rain cover. The power electronic equipment transformer cooling device can effectively cool the transformer, display the temperature in the box, provide waterproof protection for the transformer, and reduce the later maintenance workload.

Description

Cooling device for power electronic equipment transformer

Technical Field

The utility model relates to the technical field of cooling devices, in particular to a power electronic equipment transformer cooling device.

Background

Along with the development of automation and intellectualization of factory and family life, more and more electric appliances enter our life, and the common work of these electric appliances needs stable voltage, so that the work of each electric appliance can be normal, and convenience can be brought to the life of people, and we often use a transformer to transform voltage, current and impedance, and use for voltage stabilization, isolation and the like.

The electronic components in the transformer can generate a large amount of heat in the working process, and if the heat cannot be timely dissipated in the transformer, the temperature of the transformer can be increased, so that the transformer cannot work normally, and the service life of the transformer is shortened. Even fire accidents and the like can happen when the fire disaster is serious, so that a lot of inconvenience is brought to the electricity consumption of residents, and the life, health and safety of the residents are threatened; and the existing transformer is mostly installed outdoors, long-term sun-drying and rain-spraying can cause corrosion of the top of the transformer, the performance and the service life of the transformer are affected, and the labor intensity of staff overhaul is increased.

Disclosure of Invention

The utility model aims to provide a cooling device for a power electronic equipment transformer, which can effectively cool the transformer, display the temperature in a box, provide waterproof protection for the transformer and reduce the later maintenance workload.

In order to achieve the above purpose, the utility model provides a power electronic equipment transformer cooling device, which comprises a box body, wherein the box body is divided into a transformer placing bin and a cooling bin, and the middle is separated by a supporting plate; the supporting plate is provided with a vent hole; the bottom of the cooling bin is provided with a first motor, a first fan blade is connected above the first motor, and an evaporator is arranged above the first fan blade; the evaporator is connected with a compressor, a heat exchanger and an expansion valve in sequence through connecting pipes to form a circulation loop; the compressor, the heat exchanger and the expansion valve are all positioned outside the box body; the side surfaces of the cooling bin are provided with air inlets; the transformer is placed in the transformer placing bin and is fixed in the middle of the supporting plate, a side air outlet positioned on the box body is formed above the transformer placing bin, an upper air outlet is formed in the top of the transformer placing bin, and a temperature sensor is mounted on one side of the top of the transformer placing bin; the front end of the box body is provided with a box door through a hinge, and the right side of the box door is provided with a handle; the top of box is installed and is covered, the rain cover pass through the dead lever with the box is connected.

Preferably, a display screen is installed above the box door, front air outlets are arranged on two sides of the display screen, and the air inlets are formed in the bottom of the box door.

Preferably, the air inlets are covered with ventilation nets.

Preferably, a second fan blade inclined upwards is arranged on the side face of the transformer placing bin, and the second fan blade is arranged on the second motor.

Preferably, exhaust fans are arranged in the side air outlets and the upper air outlets, and ventilation nets covering the side air outlets and the upper air outlets are arranged on the outer sides of the exhaust fans.

Preferably, the evaporator is fixed above the cooling bin by a bearing plate.

Preferably, a supporting seat is installed at the bottom of the transformer, and the supporting seat is fixed on the supporting plate.

Preferably, a space is reserved between the bottom of the rain cover and the top of the box body.

Therefore, the power electronic equipment transformer cooling device can effectively cool the transformer, display the temperature in the box, provide waterproof protection for the transformer, and reduce the later maintenance workload.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a schematic cross-sectional view of a power electronics transformer cooling apparatus of the present utility model;

FIG. 2 is a schematic front view of a power electronics transformer cooling apparatus of the present utility model;

FIG. 3 is a schematic side view of a power electronics transformer cooling apparatus of the present utility model;

fig. 4 is a schematic rear view of a cooling device for a power electronics transformer according to the present utility model.

Reference numerals

1. A rain shield; 2. a fixed rod; 3. a case; 4. a transformer placing bin; 5. a transformer; 6. a support base; 7. a support plate; 8. a vent hole; 9. a cooling bin; 10. a carrying plate; 11. an evaporator; 12. an air inlet; 13. a first fan blade; 14. a first motor; 15. an upper air outlet; 16. a temperature sensor; 17. a side air outlet; 18. an exhaust fan; 19. a ventilation screen; 20. a second fan blade; 21. a connecting pipe; 22. an expansion valve; 23. a heat exchanger; 24. a compressor; 25. a door; 26. a hinge; 27. a front air outlet; 28. a display screen; 29. a handle.

Detailed Description

The technical scheme of the utility model is further described below through the attached drawings and the embodiments.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Example 1

As shown in the figure, the utility model provides a power electronic equipment transformer cooling device, which comprises a box body 3, wherein a transformer placing bin 4 and a cooling bin 9 are arranged in the box body 3, and the middle is separated by a supporting plate 7. The supporting plate 7 is provided with vent holes 8 which are convenient for air circulation between the transformer placing bin 4 and the cooling bin 9.

The bottom of cooling bin 9 is provided with first motor 14, and the top of first motor 14 is connected with first flabellum 13, and first motor 14 can drive first flabellum 13 fast rotation and upwards supply air. The side of the cooling bin 9 is provided with an air inlet 12, so that the air inflow in the box 3 can be ensured. An evaporator 11 is arranged above the first fan blades 13, and the evaporator 11 is fixed above the cooling bin 9 through a bearing plate 10. The evaporator 11 is connected with a compressor 24, a heat exchanger 23 and an expansion valve 22 in sequence through a connecting pipe 21, respectively, and forms a circulation loop. The compressor 24, the heat exchanger 23 and the expansion valve 22 are all located outside the tank 3, preventing more heat from being generated inside the tank 3.

The transformer 5 is placed in the transformer placing bin 4 and is fixed in the middle of the supporting plate 7, the supporting seat 6 is installed at the bottom of the transformer 5, and the supporting seat 6 is fixed on the supporting plate 7, so that the influence of the transformer 5 on air circulation can be prevented.

The side of the transformer placing bin 4 is provided with a second fan blade 20 which is inclined upwards, and the second fan blade 20 is arranged on a second motor. The rotation of the second fan blade 20 can accelerate the airflow around the transformer 5, and rapidly discharge the heat generated by the transformer 5.

A side air outlet 17 positioned on the box body 3 is arranged above the transformer placing bin 4, and an upper air outlet 15 is arranged at the top of the transformer placing bin 4. Exhaust fans 18 are arranged in the side air outlets 17 and the upper air outlet 15, so that the air in the box body 3 can be exhausted quickly. The outside of the exhaust fan 18 is provided with a ventilation net 19 covering the side air outlet 17 and the upper air outlet 15 to prevent foreign matters from entering the inside of the case 3. The temperature sensor 16 is installed on one side of the top of the transformer placing bin 4, so that the temperature information in the box body 3 can be acquired in real time.

The front end of the box body 3 is provided with a box door 25 through a hinge 26, and the right side of the box door 25 is provided with a handle 29. A display screen 28 is installed above the box door 25, and can display the temperature inside the box body 3 in real time. Front air outlets 27 are arranged on two sides of the display screen 28, and an air inlet 12 is arranged at the bottom of the box door 25. The air inlets 12 are covered with a ventilation net 19, which also prevents foreign matters from entering.

The rain cover 1 is installed at the top of box 3, and rain cover 1 is connected with box 3 through dead lever 2, can prevent that the rainwater from getting into inside box 3 in the sleet day. A space is left between the bottom of the rain cover 1 and the top of the case 3 to prevent heat inside the case 3 from being discharged.

In use, the temperature sensor 16 collects the temperature information inside the tank 3 in real time and displays it in real time through a display screen on the tank door 25. In addition, the temperature sensor 16 is also electrically connected to the compressor 24, and a threshold value is set in advance. When the temperature in the case 3 is less than the threshold value, only the first fan 13, the second fan 20 and the exhaust fan 18 operate to exhaust the heat generated from the transformer 5. When the temperature in the box body 3 is greater than or equal to the threshold value, the compressor 24 is started, and the heat exchanger 23, the expansion valve 22 and the evaporator 11 are driven to work, so that the air in the cooling bin 9 of the evaporator 11 is rapidly cooled, and the heat dissipation efficiency of the transformer 5 is greatly improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. A power electronics transformer cooling device, characterized in that: the device comprises a box body, wherein the box body is divided into a transformer placing bin and a cooling bin, and the middle of the box body is separated by a supporting plate; the supporting plate is provided with a vent hole; the bottom of the cooling bin is provided with a first motor, a first fan blade is connected above the first motor, and an evaporator is arranged above the first fan blade; the evaporator is connected with a compressor, a heat exchanger and an expansion valve in sequence through connecting pipes to form a circulation loop; the compressor, the heat exchanger and the expansion valve are all positioned outside the box body; the side surfaces of the cooling bin are provided with air inlets; the transformer is placed in the transformer placing bin and is fixed in the middle of the supporting plate, a side air outlet positioned on the box body is formed above the transformer placing bin, an upper air outlet is formed in the top of the transformer placing bin, and a temperature sensor is mounted on one side of the top of the transformer placing bin; the front end of the box body is provided with a box door through a hinge, and the right side of the box door is provided with a handle; the top of box is installed and is covered, the rain cover pass through the dead lever with the box is connected.

2. A power electronics transformer cooling device according to claim 1, characterized in that: the display screen is installed to the chamber door top, the both sides of display screen are provided with preceding air outlet, the bottom of chamber door has been seted up the air intake.

3. A power electronics transformer cooling device according to claim 1, characterized in that: the air inlets are covered with ventilation nets.

4. A power electronics transformer cooling device according to claim 1, characterized in that: the side face of the transformer placing bin is provided with a second fan blade which is inclined upwards, and the second fan blade is arranged on a second motor.

5. A power electronics transformer cooling device according to claim 1, characterized in that: exhaust fans are arranged in the side air outlets and the upper air outlets, and ventilation nets covering the side air outlets and the upper air outlets are arranged on the outer sides of the exhaust fans.

6. A power electronics transformer cooling device according to claim 1, characterized in that: the evaporator is fixed above the cooling bin through a bearing plate.

7. A power electronics transformer cooling device according to claim 1, characterized in that: the bottom of the transformer is provided with a supporting seat, and the supporting seat is fixed on the supporting plate.

8. A power electronics transformer cooling device according to claim 1, characterized in that: a space is reserved between the bottom of the rain shield and the top of the box body.