CN219428086U - Self-cleaning device for battery of battery-changing automobile - Google Patents

Abstract

The utility model relates to the technical field of power batteries, in particular to a self-cleaning device for a battery of a battery-changing automobile, which comprises a movable platform, an deicing cleaning device connected with the movable platform and a dirt storage box arranged below the deicing cleaning device and fixedly connected with the movable platform; the deicing cleaning device comprises a horizontal support arm, a hot air rotary spray head and a hot air blower; a power supply controller is arranged in the movable platform, and the hot air rotary spray head and the hot air blower are respectively and electrically connected with the power supply controller through wires; the utility model can defrost and clean the sewage and sludge ice of the vehicle chassis, so that the chassis area of the battery for replacing electricity and the battery for accommodating the battery can be kept clean, the problem that the battery is frozen on the bottom plate when the battery for replacing electricity in winter in north is solved, and the electricity replacing efficiency of the battery for replacing electricity is improved.

Description

Self-cleaning device for battery of battery-changing automobile

Technical Field

The utility model relates to the technical field of cleaning of chassis of a battery-changing automobile, in particular to a battery self-cleaning device of the battery-changing automobile.

Background

Along with the rapid increase of the sales and the holding quantity of automobiles, the problem of energy shortage brought by fuel automobiles is more remarkable; based on the energy structure safety and environmental protection pressure, development of new energy automobiles with energy conservation and environmental protection has become an urgent need; compared with the traditional fuel oil automobile, the new energy automobile has obvious advantages in the aspects of energy sources, tail gas emission and the like.

In winter in northern China, the snow is more in cold weather, after the vehicle is driven in the snow, the sewage attached to the outdoor vehicle body of the vehicle is easy to freeze, and particularly the sewage and sludge attached to the chassis of the vehicle; because the new energy automobile battery replacement is positioned on the chassis of the vehicle, sewage and sludge on the chassis of the vehicle can freeze the battery to be replaced and the chassis together easily, and when the vehicle is powered on, the battery replacement station can not quickly perform the battery replacement operation, and the chassis of the vehicle needs to be thawed manually; and a large amount of sand and soil are adhered to the battery, so that the operation is not smooth during power exchange, the power exchange is time-consuming and labor-consuming, and the power exchange efficiency is low.

Disclosure of Invention

In order to solve the problems, the utility model provides a self-cleaning device for a battery of a battery-changing automobile, which can defrost and clean sewage and sludge on a chassis of the automobile, so that the battery-changing battery and a chassis area for accommodating the battery are kept clean, the problem that the battery is frozen on a bottom plate when a battery of the battery-changing station is changed in winter in north is solved, and the battery-changing efficiency of the battery-changing station is improved.

The utility model provides a self-cleaning device for a battery of a battery-changing automobile, which comprises a movable platform, an ice-melting cleaning device connected with the movable platform and a dirt storage box arranged below the ice-melting cleaning device and fixedly connected with the movable platform;

the deicing cleaning device comprises a horizontal support arm, a hot air rotary spray head and a hot air blower, wherein the horizontal support arm is a hollow square pipe body, the rear end of the horizontal support arm is fixed on the side wall of the front end of the movable platform, and the upper surface of the front end of the horizontal support arm is provided with the hot air rotary spray head;

the air heater is arranged in the movable platform in a sitting manner, an air outlet of the air heater is communicated with an air inlet of the air pipe, the air pipe is arranged in a hollow square pipe body in a penetrating manner and is arranged in the horizontal supporting arm, the air outlet of the air pipe is communicated with the hot air rotary spray head, and an air permeable grid is arranged on the side wall of one side of the movable platform, so that the air heater can be subjected to air inlet and heat radiation from the outside of the movable platform; a power supply controller is arranged in the movable platform, and the hot air rotary spray head and the hot air blower are respectively and electrically connected with the power supply controller through wires;

the dirt storage box is a box body with an open upper end, the box body is fixedly connected with the side wall of the front end of the movable platform through two support rods, and the box body is arranged below the horizontal support arm and is positioned right in the cleaning area of the deicing cleaning device; when the hot air rotary spray head works, frozen sewage and sludge in the vehicle chassis and the accommodated battery area are thawed by hot air, so that the thawed sewage and sludge fall into the dirt storage box under the action of gravity, the situation that the sewage and sludge fall onto the ground and ice to influence the driving safety is avoided, and the environment of the working area of the power exchange station is kept clean.

The hot air rotary spray head comprises a first supporting tube, a first bearing, a first hollow rotary table, a straight nozzle, a first rotary motor and a first supporting rod; the first supporting tube is vertically arranged at the upper surface of the front end of the hollow square tube body of the horizontal supporting arm, the first hollow rotary table and the first supporting tube are rotationally connected and communicated through a first bearing, the first hollow rotary table can rotate by taking the first supporting tube as an axis, the lower end of the linear nozzle is communicated and fixed on the first hollow rotary table, the linear nozzle is convenient to obtain ice-melting hot air from the first hollow rotary table and the first supporting tube, an included angle of 15-30 degrees is formed between the linear nozzle and the horizontal plane of the first hollow rotary table so as to increase the rotary blowing area, a gear of the first rotary motor is meshed with the outer edge of the first hollow rotary table, the upper end and the lower end of the first supporting rod are respectively fixedly connected with the first rotary motor and the upper end face of the horizontal supporting arm, an air outlet of the air pipe is communicated with the lower end of the first supporting tube, the first rotary motor is electrically connected with the power supply controller through a wire, the power supply controller controls the first rotary motor to rotate through the wire, the linear nozzle is driven to do circular motion, the power supply hot air to the linear nozzle, and the hot air motor supplies ice-melting hot air to the linear nozzle, and the hot air to blow the ice-melting chassis and the lower surface of the battery to dry ice-melting chassis to prevent secondary ice.

The deicing cleaning device further comprises a rotary wiping device, wherein the rotary wiping device comprises a telescopic sleeve, a first stepping motor, a second bearing, a second hollow turntable, a wiping brush, a second rotating motor and a second supporting rod; the lower end of the telescopic sleeve is fixed at the upper surface of the front end of the hollow square tube body of the horizontal supporting arm, the first stepping motor is meshed with the telescopic sleeve to control lifting of the telescopic sleeve, so that the chassis to be cleaned and the lower bottom surface of the battery can be cleaned conveniently, the lower end of the second hollow rotary table is connected with the upper end of the telescopic sleeve in a rotary manner through a second bearing, the second hollow rotary table can rotate by taking the telescopic sleeve as an axis, the lower end of the wiping brush is fixed on the upper surface of the second hollow rotary table, an included angle of 15-30 degrees is formed between the wiping brush and the horizontal plane of the second hollow rotary table so as to increase the rotary wiping area, a gear of the second rotary motor is meshed with the lower supporting side wall of the second hollow rotary table, the upper end and the lower end of the second supporting rod are respectively fixedly connected with the second rotary motor and the upper end surface of the horizontal supporting arm, the first stepping motor and the second rotary motor are respectively electrically connected with a power supply controller through wires, and the power supply controller can respectively control the first stepping motor and the second rotary motor to rotate by the wires, so that the brush head of the wiping brush can conveniently contact the chassis and the lower bottom surface of the battery; the second rotating motor drives the second hollow turntable and the wiping brush to do circular motion so as to wipe the sludge adhered to the bottom surfaces of the chassis and the battery.

The deicing cleaning device also comprises a rotary water spraying device, a water pump and a water tank, wherein the rotary water spraying device comprises a second supporting tube, a third bearing, a third hollow turntable, a liquid spray head, a third rotary motor and a third supporting rod; the second stay tube is perpendicular to the hollow square tube body front end upper surface department of locating the horizontal support arm, through the rotation of third bearing connection and intercommunication between third hollow carousel and the second stay tube, the third hollow carousel can rotate with the second stay tube as the axle, liquid shower nozzle lower extreme intercommunication is fixed in third hollow carousel upper surface, the contained angle of 15 ~ 30 is formed with the horizontal plane of third hollow carousel to increase rotatory spraying area to the gear of third rotation motor meshes with the outer edge of third hollow carousel, the upper and lower end of third bracing piece respectively with third rotation motor and horizontal support arm up end rigid coupling, water pump and water tank are fixed in movable platform inside respectively, the water tank is through water pipe and water pump water inlet intercommunication, be equipped with the water inlet on the water tank, this water inlet one end wears to locate outside the movable platform lateral wall for movable platform's water source can be from taking water storage or external water inlet source, between the delivery port and the second stay tube lower extreme through water pipe intercommunication, this water pipe middle part holding is in the horizontal support arm, water pump and third rotation motor are connected with power supply controller electricity through the wire respectively, power controller control water pump or motor turn-off and third rotation motor are rotated to the power supply controller through the wire control respectively, the clean water pump and the rotation of water pump bottom surface is driven to the clean water pump, the clean liquid is provided to the water pump and the bottom surface is rotated to the clean water pump, the sewage is washed down to the clean water pump bottom surface, the water supply controller is rotated to the water pump bottom surface is controlled.

The horizontal support arm comprises a two-section type telescopic arm and a second stepping motor, the rear end of the two-section type telescopic arm is fixed on the side wall of the movable platform, a gear of the second stepping motor is meshed with the two-section type telescopic arm so as to control the front end arm of the two-section type telescopic arm to move forwards and backwards, and the hot air rotary spray head, the rotary wiping device and the rotary water spraying device are sequentially fixed on the upper surface of the front end arm of the two-section type telescopic arm and are electrically connected with the power supply controller through wires.

The movable platform is of a flat box structure with the upper end capable of being opened and closed, the flat box structure is suitable for the height of a chassis of a vehicle, and the opened and closed box is convenient for maintenance and replacement of parts.

The lower bottom surface of the movable platform is provided with a movable wheel capable of being positioned, so that the self-cleaning device of the battery-changing automobile can be conveniently moved to the chassis of the automobile and the position of the battery-changing battery, and the movable wheel is convenient for the deicing cleaning device to carry out deicing cleaning work on the chassis and the battery after being positioned.

The power supply controller is fixed at the inner top wall of the openable box cover, and the inner space of the movable platform is fully and reasonably utilized.

The dirt storage box bottom is provided with a openable sewage outlet, so that the collected sewage and sludge can be conveniently poured out, and the sewage and sludge can be reused.

Advantageous effects

The utility model can defrost and clean the sewage and sludge ice of the vehicle chassis, so that the chassis area of the battery for replacing electricity and the battery for accommodating the battery can be kept clean, the problem that the battery is frozen on the bottom plate when the battery for replacing electricity in winter in north is solved, and the electricity replacing efficiency of the battery for replacing electricity is improved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic view of the internal part of the movable platform according to the present utility model.

FIG. 3 is a schematic diagram showing a partial internal structure of the movable platform according to the present utility model.

In the figure:

1. a movable platform; 11. an air permeable grille; 12. a power supply controller; 13. a case cover; 14. a case; 15. a moving wheel;

2. an ice-melting cleaning device; 21. a horizontal support arm; 211. two-section telescopic arm; 212. a second stepping motor; 22. a hot air rotary spray head; 221. a first support tube; 222. a first bearing; 223. a first hollow turret; 224. a straight nozzle; 225. a first rotating motor; 226. a first support bar; 23. an air heater; 24. rotating the wiping device; 241. a telescoping sleeve; 242. a first stepping motor; 243. a second bearing; 244. a second hollow turntable; 245. a wiping brush; 246. a second rotating motor; 247. a second support bar; 25. a rotary water spraying device; 251. a second support tube; 252. a third bearing; 253. a third hollow turntable; 254. a liquid ejection head; 255. a third rotary motor; 256. a third support bar; 26. a water pump; 27. a water tank; 271. a water inlet;

3. a dirt receiving box; 31. a support rod; 32. can open and close the sewage outlet.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1 and 3, a self-cleaning device for a battery of a battery-changing automobile comprises a movable platform 1, an ice-melting cleaning device 2 connected with the movable platform 1, and a dirt storage box 3 arranged below the ice-melting cleaning device 2 and fixedly connected with the movable platform;

the deicing cleaning device 2 comprises a horizontal support arm 21, a hot air rotary spray head 22 and a hot air blower 23, wherein the horizontal support arm 21 is a hollow square tube body, the rear end of the horizontal support arm 21 is fixed on the side wall of the front end of the movable platform 1, and the hot air rotary spray head 22 is arranged on the upper surface of the front end of the horizontal support arm 21;

the air heater 23 is arranged in the movable platform 1 in a sitting manner, an air outlet of the air heater 23 is communicated with an air inlet of an air pipe, the air pipe is arranged in a hollow square pipe body of the horizontal support arm 21 in a penetrating manner, the air outlet of the air pipe is communicated with the hot air rotary spray head 22, and an air-permeable grid 11 is arranged on the side wall of one side of the movable platform 1; a power supply controller 12 is arranged in the movable platform 1, and a hot air rotary spray head 22 and a hot air blower 23 are respectively and electrically connected with the power supply controller 12 through wires;

the dirt storage box 3 is a box body with an open upper end, the box body is fixedly connected with the side wall of the front end of the movable platform 1 through two supporting rods 31, and the box body is arranged below the horizontal supporting arm 21 and is positioned in a cleaning area of the deicing cleaning device 2.

The hot air rotary spray head 22 comprises a first supporting tube 221, a first bearing 222, a first hollow rotary table 223, a straight-shaped spray nozzle 224, a first rotary motor 225 and a first supporting rod 226; the first supporting tube 221 is vertically arranged at the upper surface of the front end of the hollow square tube body of the horizontal supporting arm 21, the first hollow rotary table 223 is rotationally connected and communicated with the first supporting tube 221 through a first bearing 222, the first hollow rotary table 223 can rotate by taking the first supporting tube 221 as an axis, the lower end of the straight-shaped nozzle 224 is communicated and fixed on the first hollow rotary table 223, the straight-shaped nozzle 224 forms an included angle of 30 degrees with the horizontal plane of the first hollow rotary table 223, a gear of the first rotary motor 225 is meshed with the outer edge of the first hollow rotary table 223, the upper end and the lower end of the first supporting rod 226 are fixedly connected with the first rotary motor 225 and the upper end face of the horizontal supporting arm 21 respectively, an air outlet of the air tube is communicated with the lower end of the first supporting tube 221, and the first rotary motor 225 is electrically connected with the power controller 12 through a wire.

The movable platform 1 is of a flat box structure with an openable upper end, and comprises a box cover 13 and a box 14.

The lower bottom surface of the movable platform 1 is provided with a positionable movable wheel 15.

The power supply controller 12 is fixed at the inner top wall of the box cover 13.

The dirt storage box 3 is provided with a openable drain outlet 32 at the bottom.

Example 2

Referring to fig. 1 and 3, a self-cleaning device for a battery of a battery-changing vehicle is different from the embodiment 1 in that the ice-melting cleaning device 2 further includes a rotary wiping device 24, and the rotary wiping device 24 includes a telescopic sleeve 241, a first stepping motor 242, a second bearing 243, a second hollow turntable 244, a wiping brush 245, a second rotating motor 246, and a second support rod 247; the lower end of the telescopic sleeve 241 is fixed at the upper surface of the front end of the hollow square tube body of the horizontal supporting arm 21, the first stepping motor 242 is meshed with the telescopic sleeve 241, the lower end of the second hollow turntable 244 is rotationally connected with the upper end of the telescopic sleeve 241 through the second bearing 243, the second hollow turntable 244 can rotate by taking the telescopic sleeve 241 as an axis, the lower end of the wiping brush 245 is fixed at the upper surface of the second hollow turntable 244, the wiping brush 245 forms an included angle of 30 degrees with the horizontal plane of the second hollow turntable 244, a gear of the second rotating motor 246 is meshed with the lower supporting side wall of the second hollow turntable 244, the upper end and the lower end of the second supporting rod 247 are respectively fixedly connected with the upper end face of the second rotating motor 246 and the upper end face of the horizontal supporting arm 21, and the first stepping motor 242 and the second rotating motor 246 are respectively electrically connected with the power supply controller 12 through wires.

Example 3

Referring to fig. 1-3, a self-cleaning device for a battery of a battery-changing vehicle is different from the embodiment 2 in that the ice-melting cleaning device 2 further comprises a rotary water spraying device 25, a water pump 26 and a water tank 27, wherein the rotary water spraying device 25 comprises a second support tube 251, a third bearing 252, a third hollow turntable 253, a liquid spray head 254, a third rotary motor 255 and a third support rod 256; the second support tube 251 is vertically arranged at the upper surface of the front end of the hollow square tube body of the horizontal support arm 21, the third hollow rotary disc 253 and the second support tube 251 are rotationally connected and communicated through a third bearing 252, the third hollow rotary disc 253 can rotate by taking the second support tube 251 as an axis, the lower end of the liquid spray head 254 is communicated and fixed on the upper surface of the third hollow rotary disc 253, the liquid spray head 254 forms an included angle of 30 degrees with the horizontal plane of the third hollow rotary disc 253, a gear of the third rotary motor 255 is meshed with the outer edge of the third hollow rotary disc 253, the upper end and the lower end of the third support rod 256 are fixedly connected with the third rotary motor 255 and the upper end face of the horizontal support arm 21 respectively, the water pump 26 and the water tank 27 are accommodated and fixed in the movable platform 1 respectively, the water tank 27 is communicated with a water inlet of the water pump 26 through a water pipe, one end of the water inlet 271 is arranged outside the side wall of the movable platform 1, the water outlet of the water pump 26 is communicated with the lower end of the second support tube 251 through a water pipe, the middle part of the water pipe is accommodated in the horizontal support arm 21, the water pump 26 and the third rotary motor 255 are electrically connected with the power supply controller 12 through wires respectively.

The horizontal support arm 21 comprises a two-section telescopic arm 211 and a second stepping motor 212, the rear end of the two-section telescopic arm 211 is fixed on the side wall of the movable platform 1, a gear of the second stepping motor 212 is meshed with the two-section telescopic arm 211, the hot air rotary spray head 22, the rotary wiping device 24 and the rotary water spraying device 25 are sequentially fixed on the upper surface of the front end arm of the two-section telescopic arm 211, and the second stepping motor 212 is electrically connected with the power supply controller 12 through wires.

Principle of operation

Referring to fig. 1-3, after a vehicle to be replaced is parked in a power exchange station, if frozen sewage and sludge are observed in a vehicle chassis and a battery area, the battery of the power exchange vehicle is moved from a cleaning device to the vehicle chassis to be replaced, so that the deicing cleaning device 2 is opposite to the vehicle chassis and the battery freezing area, a positionable movable wheel 15 of a movable platform 1 is fixed, a power supply controller 12 is controlled to send instructions to a hot air blower 23 and a first rotating motor 225 to instruct the hot air blower 23 to provide hot air to a hot air rotating nozzle 22, and meanwhile, the first rotating motor 225 rotates to drive a linear nozzle 224 to start rotating spraying hot air to the chassis and the lower bottom surface of the battery, and the frozen sewage and sludge in the rotating area are thawed;

the second stepping motor 212 is controlled to be started by the power controller 12, the two-section telescopic arm 211 extends forwards for a small section, the wiping brush 245 is opposite to the thawed sewage and sludge area, the first stepping motor 242 is controlled to rotate by the power controller 12, the telescopic sleeve 241 is lifted, the wiping brush 245 can be contacted with the lower bottom surfaces of the chassis and the battery, the second rotating motor 246 is controlled to rotate by the power controller 12, the wiping brush 245 is driven to rotationally wipe the lower bottom surfaces of the chassis and the battery, and the thawed sewage and sludge are brushed off from the lower bottom surfaces of the chassis and the battery;

the second stepping motor 212 is controlled to be started by the power controller 12, the two-section telescopic arm 211 extends forwards for a small section, the liquid spray head 254 is opposite to the chassis for brushing sewage and sludge and the lower bottom surface area of the battery, the water pump 26 and the third rotating motor 255 are controlled to be started by the power controller 12, the water pump 26 supplies water to the rotating liquid spray head 254, and the area for brushing sewage and sludge is cleaned;

repeatedly operating the second stepping motor 212 to enable the chassis and the lower bottom surface of the battery in the extending area of the two-section telescopic arm 211 to be cleaned once by three cleaning devices; then the power controller 12 controls the first stepping motor 242 to rotate reversely, the telescopic sleeve 241 descends, the wiping brush 245 is enabled to be in contact with the chassis and the lower bottom surface of the battery, the water pump 26 and the third rotating motor 255 are controlled by the power controller 12 to stop, water spraying to the chassis and the lower bottom surface of the battery is released, the power controller 12 controls the second stepping motor 212 to rotate reversely, the two-stage telescopic arm 211 is enabled to retract to the initial position gradually, in the retraction process, the rotating straight-line-shaped nozzle 224 continuously blows hot air to the passing area, the water of the passing chassis and the lower bottom surface of the battery is blown dry, after the cleaning work of the corresponding areas of the whole chassis and the lower bottom surface is completed, the power supply controller 12 controls the air heater 23 and the first rotating motor 225 to stop working, the limit fixation of the positionable movable wheel 15 is released, the battery self-cleaning device of the battery-changing automobile is moved out of the vehicle, in the working process, the unfrozen sewage and sludge falling from the chassis and the lower bottom surface of the battery are all fallen into the dirt storage box 3, the openable and closable sewage drain 32 on the dirt storage box 3 is opened, the sewage and the sludge are discharged into a sewer, and the deicing cleaning work of the battery-changing vehicle is completed.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (9)

1. A trade electric car battery self-cleaning device which characterized in that: comprises a movable platform (1), an deicing cleaning device (2) connected with the movable platform (1), and a dirt storage box (3) arranged below the deicing cleaning device (2) and fixedly connected with the movable platform;

the deicing cleaning device (2) comprises a horizontal support arm (21), a hot air rotary spray head (22) and a hot air blower (23), wherein the horizontal support arm (21) is a hollow square tube body, the rear end of the horizontal support arm (21) is fixed on the side wall of the front end of the movable platform (1), and the hot air rotary spray head (22) is arranged on the upper surface of the front end of the horizontal support arm (21);

the air heater (23) is arranged in the movable platform (1) in a sitting manner, an air outlet of the air heater (23) is communicated with an air inlet of an air pipe, the air pipe is arranged in a hollow square pipe body in a penetrating manner and is arranged in the horizontal supporting arm (21), the air outlet of the air pipe is communicated with the hot air rotary spray head (22), and an air permeable grid (11) is arranged on the side wall of one side of the movable platform (1); a power supply controller (12) is arranged in the movable platform (1), and the hot air rotary spray head (22) and the hot air blower (23) are respectively and electrically connected with the power supply controller (12) through wires;

the dirt storage box (3) is a box body with an open upper end, the box body is fixedly connected with the front end side wall of the movable platform (1) through two support rods (31), the box body is arranged below the horizontal support arm (21), and the position of the box body is right relative to a cleaning area of the deicing cleaning device (2).

2. The self-cleaning device for a battery of a battery-changing vehicle according to claim 1, wherein: the hot air rotary spray head (22) comprises a first supporting tube (221), a first bearing (222), a first hollow rotary table (223), a linear nozzle (224), a first rotary motor (225) and a first supporting rod (226); the first support tube (221) is vertically arranged at the upper surface of the front end of the hollow square tube body of the horizontal support arm (21), the first hollow rotary table (223) is rotationally connected and communicated with the first support tube (221) through a first bearing (222), the first hollow rotary table (223) can rotate by taking the first support tube (221) as an axis, the lower end of the straight-line-shaped nozzle (224) is communicated and fixed on the first hollow rotary table (223), the straight-line-shaped nozzle (224) forms an included angle of 15-30 degrees with the horizontal plane of the first hollow rotary table (223), a gear of the first rotary motor (225) is meshed with the outer edge of the first hollow rotary table (223), the upper end and the lower end of the first support rod (226) are fixedly connected with the first rotary motor (225) and the upper end face of the horizontal support arm (21) respectively, the air outlet of the air tube is communicated with the lower end of the first support tube (221), and the first rotary motor (225) is electrically connected with the power supply controller (12) through a wire.

3. The self-cleaning device for a battery of a battery-changing vehicle according to claim 2, wherein: the deicing cleaning device (2) further comprises a rotary wiping device (24), wherein the rotary wiping device (24) comprises a telescopic sleeve (241), a first stepping motor (242), a second bearing (243), a second hollow rotary table (244), a wiping brush (245), a second rotary motor (246) and a second supporting rod (247); the lower end of the telescopic sleeve (241) is fixed at the upper surface of the front end of the hollow square tube body of the horizontal supporting arm (21), a first stepping motor (242) is meshed with the telescopic sleeve (241), the lower end of the second hollow rotary table (244) is rotationally connected with the upper end of the telescopic sleeve (241) through a second bearing (243), the second hollow rotary table (244) can rotate by taking the telescopic sleeve (241) as an axis, the lower end of the wiping brush (245) is fixed on the upper surface of the second hollow rotary table (244), the wiping brush (245) forms an included angle of 15-30 degrees with the horizontal plane of the second hollow rotary table (244), a gear of the second rotary motor (246) is meshed with the lower supporting side wall of the second hollow rotary table (244), the upper end and the lower end of the second supporting rod (247) are respectively fixedly connected with the upper end faces of the second rotary motor (246) and the horizontal supporting arm (21), and the first stepping motor (242) and the second rotary motor (246) are respectively electrically connected with the power supply controller (12) through wires.

4. A battery self-cleaning device for a battery-powered vehicle according to claim 3, wherein: the deicing cleaning device (2) further comprises a rotary water spraying device (25), a water pump (26) and a water tank (27), wherein the rotary water spraying device (25) comprises a second supporting tube (251), a third bearing (252), a third hollow rotary table (253), a liquid spray head (254), a third rotary motor (255) and a third supporting rod (256); the second supporting tube (251) is vertically arranged at the upper surface of the front end of the hollow square tube body of the horizontal supporting arm (21), the third hollow rotary disc (253) is rotationally connected and communicated with the second supporting tube (251) through a third bearing (252), the third hollow rotary disc (253) can rotate by taking the second supporting tube (251) as an axis, the lower end of the liquid spray head (254) is communicated and fixed on the upper surface of the third hollow rotary disc (253), the liquid spray head (254) and the horizontal plane of the third hollow rotary disc (253) form an included angle of 15-30 degrees, the gear of the third rotary motor (255) is meshed with the outer edge of the third hollow rotary disc (253), the upper end and the lower end of the third supporting rod (256) are fixedly connected with the third rotary motor (255) and the upper end face of the horizontal supporting arm (21) respectively, the water pump (26) and the water tank (27) are accommodated and fixed in the movable platform (1) respectively, the water tank (27) is communicated with the water inlet of the water pump (26) through a water pipe, one end of the water inlet (271) is arranged on the water tank (27) and penetrates through the water inlet of the water pump (26), the water inlet (251) and one end of the movable platform (1) is arranged outside the water outlet (21), the water pump (26) and the third rotary motor (255) are respectively and electrically connected with the power supply controller (12) through leads.

5. The self-cleaning device for a battery of a battery-powered vehicle of claim 4, wherein: the horizontal support arm (21) comprises a two-section type telescopic arm (211) and a second stepping motor (212), the rear end of the two-section type telescopic arm (211) is fixed on the side wall of the movable platform (1), a gear of the second stepping motor (212) is meshed with the two-section type telescopic arm (211), the hot air rotary spray head (22), the rotary wiping device (24) and the rotary water spraying device (25) are sequentially fixed on the upper surface of the front end arm of the two-section type telescopic arm (211), and the second stepping motor (212) is electrically connected with the power supply controller (12) through wires.

6. The self-cleaning device for a battery of a battery-changing vehicle according to claim 1, wherein: the movable platform (1) is of a flat box body structure with an openable upper end, and comprises a box cover (13) and a box body (14).

7. The self-cleaning device for a battery of a battery-changing vehicle according to claim 1, wherein: the lower bottom surface of the movable platform (1) is provided with a positionable movable wheel (15).

8. The self-cleaning device for a battery of a battery-powered vehicle of claim 6, wherein: the power supply controller (12) is fixed at the inner top wall of the box cover (13).

9. The self-cleaning device for a battery of a battery-changing vehicle according to claim 1, wherein: the bottom of the dirt storage box (3) is provided with a openable sewage outlet (32).