Pure electric mobile service vehicle
By optimizing the power battery system and cabin structure, the battery heat dissipation, safety and noise reduction problems of pure electric mobile service vehicles are solved, and the environmental protection, safety and comfort of the vehicle are improved, and the needs of green development are met.
Patent Information
- Application Number
- CN202510842205.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-08-15
AI Technical Summary
The existing pure electric mobile service vehicles have unreasonable designs in terms of power battery systems and related supporting facilities, resulting in poor heat dissipation of the battery module, safety hazards, noise reduction and efficiency problems of the electric drive system, insufficient insulation performance of the cabin structure, unreasonable layout of the service equipment cabin, and insignificant air intake noise reduction device effect, which affects the vehicle's endurance, safety and user experience.
By optimizing the structure and heat dissipation design of the power battery system, a modular battery module, an air-cooled heat dissipation device and a battery fixed bracket are used to improve the insulation performance of the car cabin structure, a noise reduction windshield set and an efficient air intake and noise reduction device are set up, and the service equipment cabin is reasonably laid out to improve the performance of the power drive system and the comfort of the car cabin.
It achieves zero exhaust emissions, reduces energy consumption, improves the service life and safety of the battery, improves the insulation performance and noise reduction effect of the car, enhances the comfort of the car, and improves the convenience and safety of the operation of the service equipment.
Smart Images

Figure CN120481833A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of pure electric vehicles, and in particular to a pure electric mobile service vehicle. Background Art
[0002] With growing environmental awareness and the rapid development of new energy technologies, pure electric vehicles are increasingly being used in various fields. Mobile service vehicles, as a means of providing convenient services to specific areas or groups, are no longer suitable for the current demands of green development due to issues such as exhaust emissions and high energy consumption.
[0003] Against this backdrop, all-electric mobile service vehicles have emerged. However, existing all-electric mobile service vehicles still have numerous deficiencies in their power battery systems and related supporting facilities. As a core component of all-electric mobile service vehicles, the performance of the power battery directly impacts the vehicle's range, safety, and stability. Currently, some vehicles suffer from inadequate power battery system design, with poor battery module layout and heat dissipation. This can lead to battery performance degradation and even safety hazards in high-temperature environments, compromising the vehicle's normal operation.
[0004] At the same time, mobile service vehicles need to provide stable power to their service equipment during operation, and noise reduction and efficiency issues of the electric drive system also need to be addressed. Furthermore, the thermal insulation performance of the vehicle structure, the rationality of the layout of the service equipment compartment, and the effectiveness of the air intake noise reduction device all affect the user experience and service quality of mobile service vehicles. Summary of the Invention
[0005] In order to solve some of the problems existing in the above-mentioned prior art, the present invention provides a pure electric mobile service vehicle, which can improve the overall performance of the pure electric mobile service vehicle by optimizing the structure and heat dissipation design of the power battery system, improving the performance of the electric drive system, improving the thermal insulation and noise reduction effects of the car structure, and rationally arranging the service equipment compartment and setting up an efficient air intake noise reduction device.
[0006] To achieve the above-mentioned purpose, the present invention provides a pure electric mobile service vehicle, including a mobile service vehicle body, the mobile service vehicle body including a chassis, a cab and a car body structure arranged at the rear end of the cab are provided on the chassis, a special installation cabin is provided inside the chassis, a power battery system is installed inside the special installation cabin, the power battery system is composed of a plurality of battery modules, an electric drive system is provided inside the car body structure, the electric drive system is electrically connected to the power battery system, and the car body structure is also provided with a service equipment cabin.
[0007] As a further improvement of the present invention, in order to ensure the electrical connection stability and structural integrity inside the battery module, help the battery module dissipate heat during operation, reduce the battery temperature, and improve the service life and safety of the battery, the power battery system includes at least two groups of battery modules, and the battery module is composed of a number of single cells. The power battery system also includes an internal frame and an external frame. The internal frame is used to carry the battery module. Adjacent single cells are equipped with conductive connecting plates, and are electrically connected through the conductive connecting plates and encapsulated inside the internal frame. Adjacent battery modules are arranged at a certain interval and form a heat dissipation channel.
[0008] As a further improvement of the present invention, in order to effectively dissipate heat from the battery module, facilitate good air flow, improve heat dissipation efficiency, and ensure that the battery module operates within an appropriate temperature range, the power battery system also includes an air-cooled heat dissipation device, and the power battery system includes several groups of cooling fans arranged around the power battery system. The cooling fans are arranged in conjunction with the battery module, and the cooling fans are arranged between the inner frame and the outer frame. The cooling fans are arranged on the upper and lower sides of the side wall of the battery module, and a cooling fan is also provided on one side of the heat dissipation channel.
[0009] As a further improvement of the present invention, in order to stably support the power battery system, prevent the battery system from shaking during vehicle driving, and improve the safety of vehicle driving, a battery fixing bracket is provided at the bottom of the power battery system, and the battery fixing bracket is fixedly connected to the chassis for stably supporting the power battery system. Shock-absorbing blocks are also provided on the battery fixing bracket, and the shock-absorbing blocks are dispersed around the power battery system.
[0010] As a further improvement of the present invention, in order to help reduce energy consumption, reduce the noise and vibration generated by the engine group, and improve the comfort of the vehicle interior environment, the electric drive system includes an engine group and a noise reduction windshield group. The engine group is arranged at the middle end of the vehicle body structure and has a built-in engine; the noise reduction windshield group is arranged on both sides of the engine group, is made of alloy composite material, and adopts a multi-layer structure design, which includes a sound insulation layer, a vibration absorption layer and a protective layer in sequence.
[0011] As a further improvement of the present invention, in order to improve the thermal insulation performance of the car structure, reduce the input of external heat, reduce the energy consumption of equipment such as air conditioning in the car, and at the same time improve the comfort of the car environment, the outer wall of the car structure adopts a double-layer structure design, the outer layer is a high-strength corrosion-resistant material, and the inner layer is a sound insulation and heat insulation material. The two layers are filled with high-efficiency thermal insulation foam to improve the thermal insulation performance of the car structure.
[0012] As a further improvement of the present invention, in order to facilitate the adjustment of the position and layout of the shelves according to actual needs and improve the utilization rate of the internal space of the service equipment cabin, an adjustable shelf system is provided inside the service equipment cabin, and the shelf system includes multiple layers of detachable shelves, and the detachable shelves are made of lightweight and high-strength materials. The shelf system is equipped with slide rails and is connected to the inner wall of the carriage structure through the slide rails.
[0013] As a further improvement of the present invention, in order to introduce fresh air when needed and reduce external noise from entering the interior of the car, an electric shutter air inlet noise reduction device is provided above both sides of the end of the car structure. The electric shutter air inlet noise reduction device includes a circular frame, and the upper and lower ends of the circular frame structure are respectively provided with a rotating shaft support seat, and the rotating shaft support seat is provided with several groups. The rotating shaft support seat is interspersed with the circular frame and is provided with several groups of rotating shafts, and the rotating shaft is provided with a noise reduction shutter assembly.
[0014] As a further improvement of the present invention, in order to effectively absorb and block noise and reduce noise propagation during the air intake process, the noise reduction louver assembly includes arc partitions arranged on the rotating shaft on both sides of the circular frame, and a rectangular partition is arranged on the rotating shaft between the two groups of arc partitions. The arc partitions and rectangular partitions are also provided with longitudinal reinforcement ribs and transverse reinforcement ribs. The arc partitions and rectangular partitions are also provided with sound insulation boards, and the interior of the sound insulation boards is filled with a glass wool structure.
[0015] As a further improvement of the present invention, in order to ensure that the wire rope will not be entangled or deviated during the retraction and release process, the working reliability and safety of the electric winch structure are improved, an electric winch structure is arranged inside the service equipment cabin, and the electric winch structure includes a winch body, a drive motor, a drum, a wire rope, a guide device and a control system. The winch body is firmly mounted on the inner wall of the service equipment cabin through a fixed bracket, and the fixed bracket is made of high-strength steel. The drive motor is fixed to one side of the winch body and is connected to the drum through a transmission shaft. The drum is rotatably mounted on the winch body for winding the wire rope. One end of the wire rope is fixed on the drum, and a hook is provided at the other end. The wire rope is made of high-strength alloy material. The guide device is arranged in front of the drum, and includes a guide wheel and a guide bracket. The guide wheel is rotatably mounted on the guide bracket for guiding the retraction and release direction of the wire rope.
[0016] During operation, the power battery system begins to play a key role before the vehicle starts. This system consists of multiple battery modules, each of which is electrically connected via conductive connectors and encapsulated within an internal frame. During this operation, the battery mounting bracket firmly supports the entire power battery system, while the shock absorber effectively absorbs any minor vibrations, ensuring a stable battery system and providing a sufficient power reserve for vehicle startup.
[0017] When the vehicle is started, the electric drive system begins operating. The energy-saving motor built into the engine unit receives power from the power battery system and begins operating. Simultaneously, the noise-reducing windshield assembly comes into play, its sound insulation, vibration absorption, and protective layers effectively reducing noise and vibration generated by the engine unit, creating a quiet and comfortable environment inside the vehicle. If the battery temperature rises while the vehicle is in motion, the air-cooling device activates. The cooling fan, located around the power battery system, begins rotating, dissipating heat generated by the batteries through the heat dissipation channels and the air flow along the upper and lower sides of the battery module walls, ensuring that the batteries operate within a suitable temperature range.
[0018] Upon arrival at the service location, the carriage's structure comes into play. The double-layer exterior walls, constructed from high-strength, corrosion-resistant material on the outside and sound- and heat-insulating material on the inside, along with high-efficiency thermal insulation foam filling in the middle, ensure a stable interior environment. Opening the service equipment compartment reveals an adjustable shelving system that slides for flexible positioning, making it easy for staff to access and place required service equipment.
[0019] The electric winch structure starts working, the control system sends a command, the drive motor starts, the reel is driven to rotate through the drive shaft, and the wire rope is retracted and released along the direction under the guidance of the guide device; the staff can use the hook to fix the items on the wire rope and complete the work easily; in addition, the electric shutter air intake and noise reduction device at the end of the car structure can also be operated as needed. Through electric control, the shutter opens to introduce fresh air. At the same time, the noise reduction shutter component effectively reduces the external noise entering the car, providing a good working environment for the staff.
[0020] The beneficial effects of the present invention are: Environmental protection and energy saving, reducing operating costs The vehicle adopts a pure electric drive mode, powered by a power battery system, completely abandoning the traditional fuel engine, achieving zero tailpipe emissions and significantly reducing environmental pollution, in line with the current trend of green environmental protection. The built-in engine also further optimizes energy efficiency, minimizing energy consumption while still meeting the vehicle's power requirements.
[0021] Excellent battery performance, safe and reliable The power battery system adopts a modular design, consisting of multiple battery modules, which facilitates assembly, maintenance, and replacement. The internal frame supports the battery modules and, together with the conductive connectors, provides a stable electrical connection, ensuring efficient operation of the battery system.
[0022] Heat dissipation channels are set up between adjacent battery modules. In addition, the reasonable layout of the cooling fans in the air-cooling heat dissipation device can quickly remove the heat generated by the battery operation, reduce the battery temperature, extend the battery life, and improve the safety and reliability of the battery system.
[0023] The combination of the battery fixing bracket and the shock-absorbing block can firmly support the battery system and reduce the impact of vibration, providing solid protection for the stable operation of the battery.
[0024] Comfort and functionality The double-layer exterior design of the cabin structure, combined with high-strength, corrosion-resistant, sound-insulating, and heat-insulating materials and high-efficiency thermal insulation foam, significantly improves the cabin's thermal insulation and reduces external noise, creating a comfortable working environment for occupants. The electric drive system's noise-reducing windshield effectively reduces noise and vibration generated by the engine, further enhancing interior comfort.
[0025] Service equipment is easy and efficient to operate The adjustable shelving system in the service equipment compartment is made of lightweight, high-strength materials and connected by slide rails, making it easy to adjust the layout according to actual needs, improving space utilization and facilitating the storage and retrieval of various service equipment.
[0026] The electric winch's structural design makes operations more convenient and efficient. Its high-strength steel mounting bracket, high-strength alloy steel wire rope, and reliable guide system ensure safety and stability during loading and unloading. The electric louver air intake and noise reduction system both introduces fresh air and reduces external noise, providing excellent conditions for service work. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings: Figure 1 It is a structural diagram of the present invention.
[0028] Figure 2 A side view of the power battery system.
[0029] Figure 3 This is a diagram of the internal structure of the power battery system.
[0030] Figure 4 It is a structural diagram of the rear end of the vehicle according to the present invention.
[0031] Figure 5 This is the structural diagram of the electric shutter air inlet noise reduction device.
[0032] Figure 6 This is a structural diagram of the electric winch structure.
[0033] Figure 7 Flowchart of the present invention.
[0034] Among them, 1 chassis, 2 cab, 3 car body structure, 4 special installation cabin, 5 power battery system, 6 electric drive system, 7 service equipment cabin, 8 battery module, 9 single battery, 10 internal frame, 11 external frame, 12 conductive connecting piece, 13 air cooling heat dissipation device, 14 cooling fan, 15 heat dissipation channel, 16 battery fixing bracket, 17 shock absorber block, 18 engine group, 19 noise reduction windshield group, 20 shelf system, 21 detachable shelf, 22 slide rail, 23 electric shutter air inlet noise reduction device, 24 circular frame, 25 shaft support seat, 26 rotating shaft, 27 noise reduction shutter assembly, 28 arc partition, 29 rectangular partition, 30 longitudinal reinforcement rib, 31 transverse reinforcement rib, 32 sound insulation board, 33 electric winch structure, 34 winch body, 35 drive motor, 36 drum, 37 wire rope, 38 guide device, 39 guide wheel, 40 guide bracket. DETAILED DESCRIPTION
[0035] In order to make people in this technical field better understand the technical solution in this application, Figure 1-7 The present invention is further described. The following examples are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.
[0036] like Figure 1-7 A pure electric mobile service vehicle shown includes a mobile service vehicle body, which includes a chassis 1, a cab 2 and a car body structure 3 arranged at the rear end of the cab 2, a dedicated installation cabin 4 is provided inside the chassis 1, and a power battery system 5 is installed inside the dedicated installation cabin 4. The power battery system 5 is composed of multiple battery modules 8, an electric drive system 6 is provided inside the car body structure 3, and the electric drive system 6 is electrically connected to the power battery system 5, and the car body structure 3 is also provided with a service equipment cabin 7.
[0037] The power battery system 5 includes at least two groups of battery modules 8, each of which is composed of a plurality of single cells 9. The power battery system 5 also includes an internal frame 10 and an external frame 11. The internal frame 10 is used to support the battery modules 8. Conductive connecting pieces 12 are provided between adjacent single cells 9, and are electrically connected through the conductive connecting pieces 12 and encapsulated inside the internal frame 10. Adjacent battery modules 8 are arranged at a certain interval to form a heat dissipation channel 15.
[0038] The power battery system 5 also includes an air-cooled heat dissipation device 13. The power battery system 5 includes several groups of cooling fans 14 arranged around the power battery system 5. The cooling fans 14 are arranged in conjunction with the battery module 8. The cooling fans 14 are arranged between the inner frame 10 and the outer frame 11. The cooling fans 14 are arranged on the upper and lower sides of the side wall of the battery module 8. A cooling fan 14 is also provided on one side of the heat dissipation channel 15.
[0039] A battery fixing bracket 16 is provided at the bottom of the power battery system 5. The battery fixing bracket 16 is fixedly connected to the chassis 1 for stably supporting the power battery system 5. Shock-absorbing blocks 17 are also provided on the battery fixing bracket 16. The shock-absorbing blocks 17 are dispersed around the power battery system 5.
[0040] The electric drive system 6 includes an engine group 18 and a noise reduction windshield group 19. The engine group 18 is arranged at the middle end of the vehicle body structure 3 and has a built-in engine. The noise reduction windshield group 19 is arranged on both sides of the engine group 18, is made of alloy composite material, and adopts a multi-layer structure design, which includes a sound insulation layer, a vibration absorption layer and a protective layer.
[0041] The outer wall of the car body structure 3 adopts a double-layer structure design, the outer layer is a high-strength corrosion-resistant material, the inner layer is a sound insulation and heat insulation material, and the space between the two layers is filled with high-efficiency heat insulation foam to improve the thermal insulation performance of the car body structure 3.
[0042] An adjustable shelf system 20 is provided inside the service equipment compartment 7. The shelf system 20 includes multiple layers of detachable shelves 21. The detachable shelves 21 are made of lightweight and high-strength materials. The shelf system 20 is provided with slide rails 22 and is connected to the inner wall of the carriage structure 3 through the slide rails 22.
[0043] An electric shutter air intake noise reduction device 23 is also provided above both sides of the end of the carriage structure 3. The electric shutter air intake noise reduction device 23 includes a circular frame 24. The upper and lower ends of the circular frame 24 structure are respectively provided with a rotating shaft support seat 25. The rotating shaft support seat 25 is provided with several groups. The rotating shaft support seat 25 is inserted into the circular frame 24 and is provided with several groups of rotating shafts 26. The rotating shaft 26 is provided with a noise reduction shutter assembly 27.
[0044] The noise reduction louver assembly 27 includes arc partitions 28 arranged on the rotating shaft 26 on both sides of the circular frame 24, and a rectangular partition 29 is arranged on the rotating shaft 26 between the two groups of arc partitions 28. The arc partitions 28 and the rectangular partitions 29 are also provided with longitudinal reinforcement ribs 30 and transverse reinforcement ribs 31. The arc partitions 28 and the rectangular partitions 29 are also provided with sound insulation boards 32, and the interior of the sound insulation boards 32 is filled with a glass wool structure.
[0045] An electric winch structure 33 is provided inside the service equipment cabin 7. The electric winch structure 33 includes a winch body 34, a drive motor 35, a drum 36, a wire rope 37, a guide device 38 and a control system. The winch body 34 is firmly mounted on the inner wall of the service equipment cabin 7 through a fixed bracket. The fixed bracket is made of high-strength steel. The drive motor 35 is fixed to one side of the winch body 34 and is connected to the drum 36 through a transmission shaft. The drum 36 is rotatably mounted on the winch body 34 for winding the wire rope 37. One end of the wire rope 37 is fixed on the drum 36, and the other end is provided with a hook. The wire rope 37 is made of high-strength alloy. The guide device 38 is arranged in front of the drum 36 and includes a guide wheel 39 and a guide bracket 40. The guide wheel 39 is rotatably mounted on the guide bracket 40 for guiding the retraction and release direction of the wire rope 37.
[0046] During operation of the present invention, before the vehicle is started, the power battery system 5 begins to play a key role. This system consists of multiple battery modules 8, each of which is electrically connected via conductive connectors 12 and encapsulated within an internal frame 10. During this operation, the battery mounting bracket 16 firmly supports the entire power battery system 5, while the shock absorber 17 effectively absorbs any minor vibrations, ensuring a stable battery system and providing a sufficient power reserve for vehicle startup.
[0047] When the vehicle is started, the electric drive system 6 starts working. The energy-saving engine built into the engine group 18 receives electricity from the power battery system 5 and starts running. At the same time, the noise reduction windshield group 19 plays a role, and its sound insulation layer, vibration absorption layer and protective layer effectively reduce the noise and vibration generated by the engine group 18, creating a quiet and comfortable environment in the car. During the driving of the vehicle, if the battery temperature rises, the air-cooled heat dissipation device 13 starts. The cooling fan 14 arranged around the power battery system 5 starts to rotate, and the heat generated by the battery is taken away through the heat dissipation channel 15 and the air flow on the upper and lower sides of the side walls of the battery module 8, ensuring that the battery operates within a suitable temperature range.
[0048] Upon arrival at the service location, the carriage structure 3 comes into play. The double-layer exterior walls, constructed of high-strength, corrosion-resistant material on the outside and sound- and heat-insulating material on the inside, along with high-efficiency insulating foam filling in the middle, ensure a stable interior environment. Opening the service equipment compartment 7 reveals an adjustable shelf system 20, which can be flexibly adjusted using slide rails 22, making it easy for staff to access and place required service equipment.
[0049] The electric winch structure 33 starts working, the control system issues a command, the drive motor 35 starts, and the reel 36 is driven to rotate through the transmission shaft. The wire rope 37 is retracted and released along the direction under the guidance of the guide device 38; the staff can use the hook to fix the items on the wire rope 37 and complete the work easily; in addition, the electric shutter air intake and noise reduction device 23 at the end of the car structure 3 can also be operated as needed. Through electric control, the shutter opens to introduce fresh air. At the same time, the noise reduction shutter assembly 27 effectively reduces the external noise entering the car, providing a good working environment for the staff.
[0050] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features therein according to the disclosed technical content without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.
Claims
1. A pure electric mobile service vehicle, comprising a mobile service vehicle body, characterized in that: The mobile service vehicle body comprises a chassis (1), a cab (2) and a carriage structure (3) arranged at the rear end of the cab (2) are arranged on the chassis (1), a dedicated installation cabin (4) is arranged inside the chassis (1), a power battery system (5) is installed inside the dedicated installation cabin (4), and the power battery system (5) is composed of a plurality of battery modules (8), an electric drive system (6) is arranged inside the carriage structure (3), and the electric drive system (6) is electrically connected to the power battery system (5), and the carriage structure (3) is also provided with a service equipment cabin (7).
2. A pure electric mobile service vehicle according to claim 1, characterized in that: The power battery system (5) includes at least two groups of battery modules (8), each of which is composed of a plurality of single cells (9). The power battery system (5) further includes an internal frame (10) and an external frame (11). The internal frame (10) is used to carry the battery modules (8). Adjacent single cells (9) are provided with conductive connecting pieces (12) and are electrically connected via the conductive connecting pieces (12). The cells are encapsulated in the internal frame (10). Adjacent battery modules (8) are arranged at a certain interval to form a heat dissipation channel (15).
3. A pure electric mobile service vehicle according to claim 2, characterized in that: The power battery system (5) further includes an air-cooled heat dissipation device (13). The power battery system (5) includes a plurality of cooling fans (14) arranged around the power battery system (5). The cooling fans (14) are arranged in conjunction with the battery module (8). The cooling fans (14) are arranged between the inner frame (10) and the outer frame (11). The cooling fans (14) are arranged on the upper and lower sides of the side wall of the battery module (8). A cooling fan (14) is also arranged on one side of the heat dissipation channel (15).
4. A pure electric mobile service vehicle according to claim 1, characterized in that: A battery fixing bracket (16) is provided at the bottom of the power battery system (5), and the battery fixing bracket (16) is fixedly connected to the chassis (1) for stably supporting the power battery system (5). Shock-absorbing blocks (17) are also provided on the battery fixing bracket (16), and the shock-absorbing blocks (17) are dispersedly arranged around the power battery system (5).
5. The pure electric mobile service vehicle according to claim 1, characterized in that: The electric drive system (6) includes an engine group (18) and a noise reduction windshield group (19). The engine group (18) is arranged at the middle end of the vehicle body structure (3) and has a built-in engine. The noise reduction windshield group (19) is arranged on both sides of the engine group (18), is made of alloy composite material, and adopts a multi-layer structure design, which includes a sound insulation layer, a vibration absorption layer, and a protective layer.
6. The pure electric mobile service vehicle according to claim 1, characterized in that: The outer wall of the carriage structure (3) adopts a double-layer structure design, the outer layer is a high-strength corrosion-resistant material, the inner layer is a sound insulation and heat insulation material, and the space between the two layers is filled with high-efficiency heat insulation foam to improve the heat preservation and heat insulation performance of the carriage structure (3).
7. The pure electric mobile service vehicle according to claim 1, characterized in that: An adjustable shelf system (20) is provided inside the service equipment compartment (7). The shelf system (20) includes multiple layers of detachable shelves (21). The detachable shelves (21) are made of a lightweight, high-strength material. The shelf system (20) is provided with a slide rail (22) and is connected to the inner wall of the carriage structure (3) via the slide rail (22).
8. The pure electric mobile service vehicle according to claim 1, characterized in that: An electric shutter air intake noise reduction device (23) is also provided above both sides of the end of the carriage structure (3), and the electric shutter air intake noise reduction device (23) includes a circular frame (24), and the upper and lower ends of the circular frame (24) structure are respectively provided with a rotating shaft support seat (25), and the rotating shaft support seat (25) is provided with a plurality of groups. The rotating shaft support seat (25) is inserted into the circular frame (24) and is provided with a plurality of groups of rotating shafts (26), and a noise reduction shutter assembly (27) is provided on the rotating shaft (26).
9. The pure electric mobile service vehicle according to claim 1, characterized in that: The noise reduction louver assembly (27) includes arc partitions (28) arranged on the rotating shaft (26) on both sides of the circular frame (24), and a rectangular partition (29) is arranged on the rotating shaft (26) between the two groups of arc partitions (28). The arc partitions (28) and the rectangular partitions (29) are also provided with longitudinal reinforcing ribs (30) and transverse reinforcing ribs (31). The arc partitions (28) and the rectangular partitions (29) are also provided with sound insulation boards (32), and the interior of the sound insulation boards (32) is filled with a glass wool structure.
10. The pure electric mobile service vehicle according to claim 1, characterized in that: An electric winch structure (33) is provided inside the service equipment cabin (7). The electric winch structure (33) includes a winch body (34), a drive motor (35), a drum (36), a wire rope (37), a guide device (38) and a control system. The winch body (34) is firmly mounted on the inner wall of the service equipment cabin (7) through a fixed bracket. The fixed bracket is made of high-strength steel. The drive motor (35) is fixed to one side of the winch body (34) and is connected to the drum (36) through a transmission shaft. The drum (36) is rotatably mounted on the winch body (34) and is used to wind a steel wire rope (37). One end of the steel wire rope (37) is fixed to the drum (36) and the other end is provided with a hook. The steel wire rope (37) is made of a high-strength alloy material. The guide device (38) is arranged in front of the drum (36) and includes a guide wheel (39) and a guide bracket (40). The guide wheel (39) is rotatably mounted on the guide bracket (40) and is used to guide the retraction and release direction of the steel wire rope (37).