CN113851983A - Combined high-voltage electrical cabinet - Google Patents

Abstract

The invention discloses a combined high-voltage electric cabinet, which comprises a first electric cabinet, a second electric cabinet and a third electric cabinet, wherein two movable wheels are respectively arranged at the lower left part and the lower right part of the lower end of the first electric cabinet, a driving device is arranged between the two movable wheels at the right part, connecting and fixing devices are respectively and jointly arranged on the outer surfaces of the first electric cabinet and the second electric cabinet and the outer surfaces of the second electric cabinet and the third electric cabinet, a cooling and heat dissipating device is arranged at the left end of the first electric cabinet, a water tank is arranged at the lower part of the left end of the cooling and heat dissipating device, and sound absorbing cotton is respectively arranged at the front end and the rear end of the cooling and heat dissipating device. According to the combined high-voltage electrical cabinet, components in the electrical cabinet are quickly and effectively cooled through the cooling and heat dissipation device and the liquid cooling device, so that the using effect and the service life of the electrical cabinet are improved, the labor intensity of workers is reduced through the driving device, the carrying efficiency of the electrical cabinet is improved, and the electrical cabinet is convenient to mount and dismount through the connecting and fixing device.

Description

Combined high-voltage electrical cabinet

Technical Field

The invention relates to the technical field of electrical cabinets, in particular to a combined high-voltage electrical cabinet.

Background

The electrical cabinet is a cabinet which is processed by steel materials and used for protecting components from working normally. The electrical cabinet manufacturing materials are generally divided into hot rolled steel plates and cold rolled steel plates. The electric cabinet is widely used in chemical industry, environmental protection industry, electric power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, traffic industry and the like. 1. The existing electrical cabinet is internally provided with various working components which can generate a large amount of heat when working, most of the existing electrical cabinet heat dissipation modes are that heat dissipation holes are formed in a cabinet body, a fan is used for heat dissipation, but the heat in the electrical cabinet is continuously accumulated, and the ventilation performance of the heat dissipation holes is not high, so that the heat dissipation effect of the electrical cabinet is not good, and the components cannot be effectively dissipated heat for a long time, so that the normal use of the electrical cabinet is influenced, and the service life of the electrical cabinet is also shortened; 2. when the electrical cabinet needs to be moved, the existing electrical cabinet is mostly of a fixed integrated structure, and a large number of components are arranged in the electrical cabinet, so that the electrical cabinet is heavy, and workers not only have high labor intensity but also have low efficiency when moving the electrical cabinet; 3. the existing electrical cabinet has limited internal space, but different components are simultaneously stored in the electrical cabinet and are easily mixed together, so that subsequent arrangement is inconvenient. Therefore, a combined high-voltage electrical cabinet is provided.

Disclosure of Invention

The invention mainly aims to provide a combined high-voltage electrical cabinet, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

a combined high-voltage electric cabinet comprises a first electric cabinet, a second electric cabinet and a third electric cabinet, wherein two movable wheels are respectively arranged at the lower left part and the lower right part of the lower end of the first electric cabinet, a driving device is arranged between the two movable wheels at the right part, connecting and fixing devices are respectively and jointly arranged on the outer surfaces of the first electric cabinet and the second electric cabinet and the outer surfaces of the second electric cabinet and the third electric cabinet, a cooling and heat dissipating device is arranged at the left end of the first electric cabinet, a water tank is arranged at the lower part of the left end of the cooling and heat dissipating device, sound absorbing cotton is respectively arranged at the front end and the rear end of the cooling and heat dissipating device, a liquid cooling device is arranged at the left end of the second electric cabinet, a connecting pipeline is arranged between the liquid cooling device and the water tank, a control device is arranged at the left end of the third electric cabinet, and cabinet doors are respectively arranged at the front ends of the first electric cabinet, the second electric cabinet and the third electric cabinet, and the middle parts of the front ends of the three cabinet doors are provided with observation windows.

Preferably, the cooling and heat dissipating device comprises a fixed box body, a condenser is jointly installed between the inner wall of the upper end of the fixed box body and the inner wall of the lower end of the fixed box body, a conveying pipe is jointly installed at the upper ends of the fixed box body and the condenser, a storage cylinder is installed at the upper end of the conveying pipe, a refrigerant is installed at the front end of the storage cylinder and enters the pipe, a discharging pipe is installed at the lower part of the left end of the condenser, the left end of the discharging pipe is connected with a water tank, a filter screen is installed on the upper part of the left end of the fixed box body in an alternating mode, a conveying fan is installed in the middle of the right end of the fixed box body in an alternating mode, and the fixed box body is installed at the left end of the electric cabinet.

Preferably, the driving device comprises a connecting column and a motor, the connecting column is installed between the two movable wheels, a rotating shaft is fixedly installed at the output end of the motor, a first gear is installed at the rear end of the rotating shaft, a second gear is meshed and connected with the left end of the first gear, the second gear is installed on the outer surface of the connecting column in an alternating mode, an L-shaped fixing plate is installed at the upper end of the motor, and the motor is installed at the lower end of the first electrical cabinet through the L-shaped fixing plate.

Preferably, the liquid cooling device includes the water pump, the delivery support board is all installed to water pump front end and rear end, two the delivery support board right-hand member is installed the water delivery board jointly, the connector is all installed at water delivery board right-hand member front portion and right-hand member rear portion, two circulating pipe is installed jointly to the connector right-hand member, the water pump passes through the water delivery board and installs at No. two regulator cubicle left ends.

Preferably, the connection fixing device comprises a fixing frame, four fixing screws are in threaded connection with the left end and the right end of the fixing frame, a plurality of ventilation grooves are formed in the upper end of the first electric cabinet and the upper end and the lower end of the second electric cabinet respectively, two second screw holes are formed in the upper portion of the left end and the upper portion of the right end of the first electric cabinet respectively, two first screw holes are formed in the lower portion of the left end and the lower portion of the right end of the second electric cabinet respectively, and the fixing frame is installed on the outer surfaces of the first electric cabinet and the second electric cabinet through the fixing screws.

Preferably, the control device comprises a controller, a temperature sensor is installed at the upper end of the controller, a thermometer is installed at the front of the left end of the controller, a display screen is installed at the rear of the left end of the controller, a plurality of operation keys are installed on the lower portion of the left end of the controller, and the controller is installed at the left end of a third electric cabinet.

Preferably, the right end of the conveying fan is connected with the first electric cabinet in a penetrating manner.

Preferably, the motor is not in contact with the movable wheel, and the lower end face of the motor is higher than the lower end face of the movable wheel.

Preferably, the circulating water pipe is installed on the inner wall of the upper end of the second electric cabinet.

Preferably, the controller is electrically connected with the motor.

Compared with the prior art, the invention has the following beneficial effects:

1. the combined high-pressure electric cabinet of the invention pours the refrigerant into the storage cylinder through the refrigerant inlet pipe, the storage cylinder conveys the refrigerant to the condenser on the cooling and radiating device through the conveying pipe, thereby refrigerating the air in the fixed box body, then conveys the cold air to the first electric cabinet through the conveying fan, the cold air can be transmitted to the three electric cabinets through the ventilating grooves arranged at the upper end of the first electric cabinet, the upper end and the lower end of the second electric cabinet and the lower end of the third electric cabinet, moreover, the sound-absorbing cotton arranged at the front end and the rear end of the fixed box body can also effectively reduce the noise generated by the condenser and the conveying fan, thereby improving the practicability of the device, meanwhile, the water refrigerated by the condenser is discharged into the water tank, the water in the water tank is pumped out and conveyed to the circulating water pipe through the water pump on the liquid cooling device by the connecting pipeline, so that the water flows back to the water tank after taking heat in the electric cabinets circularly in the circulating water pipe, with this relapse, carry out dual heat dissipation to the regulator cubicle through cooling heat abstractor and liquid cooling device to make the inside components and parts of regulator cubicle can keep under good operational environment, thereby improved its result of use and life.

2. According to the combined high-voltage electrical cabinet, the motor on the driving device drives the rotating shaft to rotate, the rotating shaft drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the connecting column to rotate, and the connecting column finally drives the movable wheels at two ends to rotate, so that the electrical cabinet can move, the electrical cabinet is prevented from being moved manually, the labor intensity of workers is reduced, and the carrying efficiency of the electrical cabinet is improved.

3. According to the fixing screw on the combined high-voltage electrical cabinet connecting and fixing device, the first electrical cabinet, the second electrical cabinet and the third electrical cabinet are fixedly connected, so that the stability among the electrical cabinets is improved, only the fixing screw needs to be rotated during disassembly, and different components can be conveniently placed due to the design of the three electrical cabinets, so that the subsequent arrangement of the components is facilitated.

4. According to the combined high-voltage electric cabinet, the temperature in the electric cabinet is displayed by the thermometer through the temperature sensor on the control device, so that people can know the temperature condition in the electric cabinet conveniently.

Drawings

FIG. 1 is an overall structure diagram of a combined high-voltage electrical cabinet according to the present invention;

FIG. 2 is a schematic structural view of a cooling and heat dissipating device of a combined high-voltage electrical cabinet according to the present invention;

FIG. 3 is a schematic structural diagram of a driving apparatus of a combined high-voltage electrical cabinet according to the present invention;

FIG. 4 is a structural diagram of a liquid cooling apparatus of a combined high-voltage electrical cabinet according to the present invention;

FIG. 5 is a schematic structural view of a connection fixture for a combined high-voltage electrical cabinet according to the present invention;

fig. 6 is a schematic structural diagram of an operating device of a combined high-voltage electrical cabinet according to the present invention;

fig. 7 is a schematic view of the overall structure of the back surface of a combined high-voltage electrical cabinet according to the present invention.

In the figure: 1. a first electrical cabinet; 2. a cooling heat sink; 3. a drive device; 4. a liquid cooling device; 5. connecting and fixing devices; 6. an operating device; 7. a second electrical cabinet; 8. a third electrical cabinet; 9. a cabinet door; 10. an observation window; 11. connecting a pipeline; 12. a water tank; 13. sound-absorbing cotton; 14. a movable wheel; 20. fixing the box body; 21. a condenser; 22. a conveying fan; 23. a discharge pipe; 24. a delivery pipe; 25. filtering with a screen; 26. a storage cylinder; 27. a refrigerant inlet pipe; 30. connecting columns; 31. a motor; 32. a rotating shaft; 33. a first gear; 34. a second gear; 35. an L-shaped fixing plate; 40. a water pump; 41. conveying the supporting plate; 42. a water conveyance board; 43. a connector; 44. a circulating water pipe; 50. a fixed mount; 51. fixing screws; 52. a first screw hole; 53. a second screw hole; 54. a ventilation groove; 60. a controller; 61. a thermometer; 62. a display screen; 63. operating a key; 64. a temperature sensor.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in FIGS. 1-7, a combined high-voltage electrical cabinet comprises a first electrical cabinet 1, a second electrical cabinet 7 and a third electrical cabinet 8, wherein two movable wheels 14 are respectively arranged at the left part and the right part of the lower end of the first electrical cabinet 1, a driving device 3 is arranged between the two movable wheels 14 at the right part, connecting and fixing devices 5 are respectively arranged on the outer surfaces of the first electrical cabinet 1 and the second electrical cabinet 7 and the outer surfaces of the second electrical cabinet 7 and the third electrical cabinet 8, a cooling and heat dissipating device 2 is arranged at the left end of the first electrical cabinet 1, a water tank 12 is arranged at the lower part of the left end of the cooling and heat dissipating device 2, sound absorbing cotton 13 is respectively arranged at the front end and the rear end of the cooling and heat dissipating device 2, a liquid cooling device 4 is arranged at the left end of the second electrical cabinet 7, a connecting pipeline 11 is arranged between the liquid cooling device 4 and the water tank 12, a control device 6 is arranged at the left end of the third electrical cabinet 8, and cabinet doors 9 are respectively arranged at the front ends of the first electrical cabinet 1, the second electrical cabinet 7 and the third electrical cabinet 8, the middle parts of the front ends of the three cabinet doors 9 are all provided with observation windows 10.

The cooling and heat dissipating device 2 comprises a fixed box body 20, a condenser 21 is jointly installed between the inner wall of the upper end and the inner wall of the lower end of the fixed box body 20, a conveying pipe 24 is jointly installed at the upper ends of the fixed box body 20 and the condenser 21, a storage cylinder 26 is installed at the upper end of the conveying pipe 24, a refrigerant inlet pipe 27 is installed at the front end of the storage cylinder 26, a discharge pipe 23 is installed at the lower part of the left end of the condenser 21, the left end of the discharge pipe 23 is connected with a water tank 12, a filter screen 25 is installed at the upper part of the left end of the fixed box body 20 in an inserting mode, a conveying fan 22 is installed at the middle part of the right end of the fixed box body 20 in an inserting mode, the fixed box body 20 is installed at the left end of the first electric cabinet 1, by the refrigerant being delivered into the condenser 21 by the delivery pipe 24, the condenser 21 thereby cools the air inside the stationary box 20, then, cold air is conveyed into the first electrical cabinet 1, the second electrical cabinet 7 and the third electrical cabinet 8 through the conveying fan 22; the driving device 3 comprises a connecting column 30 and a motor 31, the connecting column 30 is installed between the two movable wheels 14, a rotating shaft 32 is fixedly installed at the output end of the motor 31, a first gear 33 is installed at the rear end of the rotating shaft 32, the left end of the first gear 33 is meshed with a second gear 34, the second gear 34 is installed on the outer surface of the connecting column 30 in an inserting mode, an L-shaped fixing plate 35 is installed at the upper end of the motor 31, the motor 31 is installed at the lower end of the first electric cabinet 1 through the L-shaped fixing plate 35, the rotating shaft 32 is driven to rotate through the motor 31, the rotating shaft 32 drives the first gear 33 to rotate, the first gear 33 drives the second gear 34 to rotate, the second gear 34 drives the connecting column 30 to rotate, and the connecting column 30 finally drives the movable wheels 14 at two ends to rotate, so that the electric cabinet can move; the liquid cooling device 4 comprises a water pump 40, wherein conveying support plates 41 are respectively arranged at the front end and the rear end of the water pump 40, a water conveying plate 42 is jointly arranged at the right ends of the two conveying support plates 41, connectors 43 are respectively arranged at the front part and the rear part of the right end of the water conveying plate 42, circulating water pipes 44 are jointly arranged at the right ends of the two connectors 43, the water pump 40 is arranged at the left end of the second electric cabinet 7 through the water conveying plate 42, water in the water tank 12 is pumped out through a connecting pipeline 11 through the water pump 40 and conveyed into the circulating water pipe 44, and water flows circulate in the circulating water pipe 44 to take away heat in the electric cabinet and then flow back to the water tank 12, so that the operation is repeated, and the liquid cooling heat dissipation is carried out on the electric cabinet; the connecting and fixing device 5 comprises a fixing frame 50, four fixing screws 51 are in threaded connection with the left end and the right end of the fixing frame 50, a plurality of ventilating grooves 54 are formed in the upper end of the first electric cabinet 1 and the upper end and the lower end of the second electric cabinet 7 respectively, two second screw holes 53 are formed in the upper portion of the left end and the upper portion of the right end of the first electric cabinet 1 respectively, two first screw holes 52 are formed in the lower portion of the left end and the lower portion of the right end of the second electric cabinet 7 respectively, the fixing frame 50 is installed on the outer surfaces of the first electric cabinet 1 and the second electric cabinet 7 through the fixing screws 51, the first electric cabinet 1, the second electric cabinet 7 and the third electric cabinet 8 are fixedly connected through rotating the fixing screws 51, the stability among the electric cabinets is improved, and only the fixing screws 51 need to be rotated during disassembly; the control device 6 comprises a controller 60, a temperature sensor 64 is installed at the upper end of the controller 60, a thermometer 61 is installed at the front part of the left end of the controller 60, a display screen 62 is installed at the rear part of the left end of the controller 60, a plurality of operation keys 63 are installed at the lower part of the left end of the controller 60, the controller 60 is installed at the left end of the third electric cabinet 8, and the temperature in the electric cabinet is displayed by the temperature sensor 61 through the temperature sensor 64, so that people can know the temperature condition in the electric cabinet conveniently; the right end of the conveying fan 22 is connected with the first electric cabinet 1 in a penetrating manner; the motor 31 is not contacted with the movable wheel 14, and the lower end surface of the motor 31 is higher than the lower end surface of the movable wheel 14; the circulating water pipe 44 is arranged on the inner wall of the upper end of the second electrical cabinet 7; the controller 60 is electrically connected to the motor 31.

It should be noted that, the invention is a combined high-voltage electrical cabinet, firstly, the motor 31 on the driving device 3 drives the rotating shaft 32 to rotate, the rotating shaft 32 drives the first gear 33 to rotate, the first gear 33 drives the second gear 34 to rotate, the second gear 34 drives the connecting post 30 to rotate, the connecting post 30 finally drives the movable wheels 14 at two ends to rotate, thereby avoiding the need of manually moving the electrical cabinet, not only reducing the labor intensity of workers, but also improving the carrying efficiency of the electrical cabinet, when the electrical cabinet moves to the place needing to be placed, the first electrical cabinet 1, the second electrical cabinet 7 and the third electrical cabinet 8 are fixedly connected through the fixing screws 51 on the connecting and fixing device 5, not only improving the stability among the electrical cabinets, but also only needing to rotate the fixing screws 51 when disassembling, when the internal parts of the electrical cabinet work, the temperature in the electric cabinet is displayed by the thermometer 61 through the temperature sensor 64 on the control device 6, thereby facilitating people to know the temperature condition in the electric cabinet, when the temperature in the electric cabinet is too high, firstly, the refrigerant is poured into the storage cylinder 26 from the refrigerant inlet pipe 27 on the cooling and heat dissipation device 2, and then is conveyed into the condenser 21 through the conveying pipe 24, the condenser 21 thereby refrigerates the air in the fixed box body 20, then the cold air is conveyed into the first electric cabinet 1 through the conveying fan 22, the cold air can be conveyed into the three electric cabinets through the ventilation grooves 54 formed at the upper end of the first electric cabinet 1, the upper end and the lower end of the second electric cabinet 7 and the lower end of the third electric cabinet 8, and the noise generated by the condenser 21 and the conveying fan 22 can be effectively simplified through the sound absorption cotton 13 arranged at the front end and the rear end of the fixed box body 20, thereby improving the practicability of the device, meanwhile, water refrigerated by the condenser 21 is discharged into the water tank 12 through the discharge pipe 23, then water in the water tank 12 is pumped out through the connecting pipeline 11 by the water pump 40 on the liquid cooling device 4 and is conveyed into the circulating water pipe 44, water flows circulate in the circulating water pipe 44 to take away heat in the electrical cabinet and then flow back to the water tank 12, and therefore the operation is repeated, liquid cooling heat dissipation is conducted on the electrical cabinet, double heat dissipation is conducted on the electrical cabinet through the cooling heat dissipation device 2 and the liquid cooling device 4, internal components of the electrical cabinet can be kept under a good working environment, and the using effect and the service life of the internal components of the electrical cabinet are improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a combined high-voltage electrical cabinet, includes electrical cabinet (1), No. two electrical cabinets (7) and No. three electrical cabinets (8), its characterized in that: the device comprises a first electric cabinet (1), two movable wheels (14) are mounted on the lower left part and the right part of the lower end of the first electric cabinet (1), a driving device (3) is mounted between the two movable wheels (14) on the right part, a connecting and fixing device (5) is mounted on the outer surfaces of the first electric cabinet (1) and the second electric cabinet (7) and the outer surfaces of the second electric cabinet (7) and the third electric cabinet (8) together, a cooling and heat dissipating device (2) is mounted at the left end of the first electric cabinet (1), a water tank (12) is mounted at the lower part of the left end of the cooling and heat dissipating device (2), sound absorbing cotton (13) is mounted at the front end and the rear end of the cooling and heat dissipating device (2), a liquid cooling device (4) is mounted at the left end of the second electric cabinet (7), a connecting pipeline (11) is mounted between the liquid cooling device (4) and the water tank (12), and an operation and control device (6) is mounted at the left end of the third electric cabinet (8), the cabinet door (9) is installed at the front ends of the first electric cabinet (1), the second electric cabinet (7) and the third electric cabinet (8), and the middle of the front end of each cabinet door (9) is provided with an observation window (10).

2. A combined high-voltage electrical cabinet according to claim 1, wherein: cooling heat abstractor (2) are including fixed box (20), install condenser (21) jointly between fixed box (20) upper end inner wall and the lower extreme inner wall, conveyer pipe (24) are installed jointly to fixed box (20) and condenser (21) upper end, a storage section of thick bamboo (26) is installed to conveyer pipe (24) upper end, storage section of thick bamboo (26) front end is installed the refrigerant and is advanced pipe (27), delivery pipe (23) are installed to condenser (21) left end lower part, delivery pipe (23) left end is connected with water tank (12), filter screen (25) are installed to fixed box (20) left end upper portion interlude, conveyor fan (22) are installed to fixed box (20) right-hand member middle part interlude, fixed box (20) are installed at regulator cubicle (1) left end No. one.

3. A combined high-voltage electrical cabinet according to claim 1, wherein: drive arrangement (3) include spliced pole (30) and motor (31), spliced pole (30) are installed between two loose wheels (14), motor (31) output fixed mounting has pivot (32), No. one gear (33) is installed to pivot (32) rear end, No. one gear (33) left end meshing is connected with No. two gears (34), No. two gears (34) alternate and install at spliced pole (30) surface, L type fixed plate (35) are installed to motor (31) upper end, motor (31) are installed at regulator cubicle (1) lower extreme through L type fixed plate (35).

4. A combined high-voltage electrical cabinet according to claim 1, wherein: liquid cooling device (4) include water pump (40), carry backup pad (41), two are all installed to water pump (40) front end and rear end carry backup pad (41) right-hand member to install water delivery board (42) jointly, connector (43), two are all installed at water delivery board (42) right-hand member front portion and right-hand member rear portion connector (43) circulating water pipe (44) are installed jointly to connector (43) right-hand member, water pump (40) are installed at regulator cubicle No. two (7) left end through water delivery board (42).

5. A combined high-voltage electrical cabinet according to claim 1, wherein: the connection fixing device (5) comprises a fixing frame (50), four fixing screws (51) are in threaded connection with the left end and the right end of the fixing frame (50), a plurality of ventilation grooves (54) are formed in the upper end of the first electric cabinet (1) and the upper end and the lower end of the second electric cabinet (7), two second screw holes (53) are formed in the upper portion of the left end and the upper portion of the right end of the first electric cabinet (1), two first screw holes (52) are formed in the lower portion of the left end and the lower portion of the right end of the second electric cabinet (7), and the fixing frame (50) is installed on the outer surfaces of the first electric cabinet (1) and the second electric cabinet (7) through the fixing screws (51).

6. A combined high-voltage electrical cabinet according to claim 1, wherein: the control device (6) comprises a controller (60), a temperature sensor (64) is installed at the upper end of the controller (60), a thermometer (61) is installed at the front portion of the left end of the controller (60), a display screen (62) is installed at the rear portion of the left end of the controller (60), a plurality of operation keys (63) are installed on the lower portion of the left end of the controller (60), and the controller (60) is installed at the left end of a third electric cabinet (8).

7. A combined high-voltage electrical cabinet according to claim 2, wherein: the right end of the conveying fan (22) is connected with the first electric cabinet (1) in a penetrating manner.

8. A combined high-voltage electrical cabinet according to claim 3, wherein: the motor (31) is not contacted with the movable wheel (14), and the lower end surface of the motor (31) is higher than the lower end surface of the movable wheel (14).

9. A combined high-voltage electrical cabinet according to claim 4, wherein: the circulating water pipe (44) is arranged on the inner wall of the upper end of the second electrical cabinet (7).

10. A combined high-voltage electrical cabinet according to claim 6, wherein: the controller (60) is electrically connected with the motor (31).

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