Electric all-terrain vehicle

By arranging the radiator and water pump at the rear of the electric all-terrain vehicle, and combining the optimized design of the suspension and power components, the problems of complex heat dissipation module layout and susceptibility to impact in the prior art have been solved, achieving the effects of simplifying the pipeline, reducing water pump power, and improving equipment reliability.

CN121376004APending Publication Date: 2026-01-23ZHEJIANG CFMOTO POWER CO LTD
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Patent Information

Application Number
CN202410992875.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2026-01-23

AI Technical Summary

Technical Problem

Existing electric all-terrain vehicles have complex and costly heat dissipation modules, which are also susceptible to impacts from external objects, affecting equipment performance and safety.

Method used

The radiator and water pump are positioned at the rear of the electric all-terrain vehicle, with the suspension components partially overlapping the power components. This shortens the piping length, reduces the water pump power requirement, and protects the radiator components with a crash beam.

Benefits of technology

It simplifies pipe connections, reduces water pump power requirements, extends the service life of the heat dissipation module, reduces the risk of external impact, and improves the reliability and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The electric all-terrain vehicle comprises a vehicle frame, a vehicle body covering part, a walking assembly, a power assembly, a suspension assembly and a heat dissipation assembly, the heat dissipation assembly further comprises a heat dissipation pipeline, and a water pump communicates with the heat dissipation pipeline; the suspension assembly further comprises a rear shock absorber, a longitudinal plane perpendicular to the width direction of the electric all-terrain vehicle and passing through the width center of the electric all-terrain vehicle is defined, and the projection of the axis of the rear shock absorber on the longitudinal plane is defined as a preset straight line in the width direction of the electric all-terrain vehicle. From a side view, if the front of the electric all-terrain vehicle is on the left side, the projections of the radiator and the water pump on the longitudinal plane in the width direction of the electric all-terrain vehicle are basically located on the right side of the preset straight line. According to the arrangement mode, the arrangement position and the arrangement distance between the water pump and the radiator are effectively limited, the length of a pipeline assembly communicating the radiating module with the power assembly is effectively shortened, pipeline connection is simplified, and the power needed by the water pump is reduced.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an electric all-terrain vehicle. BACKGROUND

[0002] All-terrain vehicles are increasingly favored by consumers as a vehicle with strong passing performance. They can operate in complex geographical environments, such as deserts, mountains, and swamps. Under the background trend of electrification, electric all-terrain vehicles are increasingly occupying the mainstream of the all-terrain vehicle market. The electric all-terrain vehicle power system and other key components (such as motors, motor reducers, controllers, etc.) generate a large amount of heat during operation. If the heat cannot be effectively dissipated, it will cause the performance of the equipment to decline, and even cause a malfunction, which seriously affects the user experience and driving safety. At present, a heat dissipation module is usually used to dissipate heat from each component.

[0003] In the prior art, due to the layout of the whole vehicle and in order to dissipate heat against the wind, the heat dissipation module is basically located at the front end of the electric all-terrain vehicle. However, this arrangement has the problems of complex heat dissipation pipe arrangement and high cost, and the power of the water pump needs to be increased. In addition, the electric all-terrain vehicle is more likely to be impacted by external objects (such as branches) during travel, increasing the risk of damage to the heat dissipation assembly. SUMMARY

[0004] In order to solve the problems of the prior art, the purpose of the present application is to provide an electric all-terrain vehicle with a reasonable arrangement position of the heat dissipation assembly.

[0005] In order to achieve the above-mentioned objectives, the present application adopts the following technical solutions:

[0006] An electric all-terrain vehicle, comprising a vehicle frame, a vehicle body cover, a walking assembly, a power assembly, a suspension assembly, and a heat dissipation assembly. The vehicle body cover is at least partially located on the vehicle frame. The walking assembly comprises a rear wheel rotatably connected to the vehicle frame. The power assembly is located on and connected to the vehicle frame. The rear wheel is connected to the vehicle frame through the suspension assembly. The heat dissipation assembly is located on and connected to the vehicle frame. The heat dissipation assembly comprises a radiator and a water pump. The heat dissipation assembly further comprises a heat dissipation pipe. The radiator and the power assembly are in communication through the heat dissipation pipe. The water pump is in communication with the heat dissipation pipe. The suspension assembly further comprises a rear shock absorber. A longitudinal plane is defined perpendicular to the width direction of the electric all-terrain vehicle and passing through the width center of the electric all-terrain vehicle. Along the width direction of the electric all-terrain vehicle, the projection of the axial line of the rear shock absorber on the longitudinal plane is defined as a predetermined straight line. From the side view, if the front of the electric all-terrain vehicle is on the left side, the projections of the radiator and the water pump on the longitudinal plane along the width direction of the electric all-terrain vehicle are substantially located on the right side of the predetermined straight line.

[0007] Further, the suspension assembly and the power assembly at least partially overlap along the width direction of the electric all-terrain vehicle.

[0008] Further, an imaginary plane perpendicular to the length direction of the electric all-terrain vehicle and passing through at least one point of the last end of the power assembly is defined as a first transverse plane; the radiator is at least partially located behind the first transverse plane, and the length of the radiator located behind the first transverse plane is greater than or equal to 50% of the length of the radiator assembly.

[0009] Further, the radiator is at least partially located above the power assembly, and the overlapping height of the radiator and the power assembly observed along the length direction of the electric all-terrain vehicle is less than or equal to 25% of the height of the radiator.

[0010] Further, the vehicle frame comprises an upper support frame, a lower support frame and vertical support frames, the upper support frame and the lower support frame are substantially distributed along the height direction of the electric all-terrain vehicle, the vertical support frames are located between the upper support frame and the lower support frame and are distributed along the width direction of the electric all-terrain vehicle, and mounting brackets are formed between the vertical support frames; the upper end of the radiator is detachably connected with the upper support frame, and the lower end of the radiator is detachably connected with the mounting bracket.

[0011] Further, an imaginary plane perpendicular to the length direction of the electric all-terrain vehicle and passing through at least one point of the last end of the vehicle frame is defined as a second transverse plane, and the radiator is located in front of the second transverse plane.

[0012] Further, the vehicle frame further comprises a crash beam, the crash beam is located behind the vertical support frames and is detachably connected with the vertical support frames; and the crash beam at least partially overlaps with the radiator observed along the length direction of the electric all-terrain vehicle.

[0013] Further, the distance between the last end of the crash beam and the second transverse plane is greater than or equal to 50 mm and less than or equal to 150 mm.

[0014] Further, the water pump and the radiator are distributed along the width direction of the electric all-terrain vehicle, and the water pump is located on the side of the vertical support frames away from the radiator and is detachably connected with the vertical support frames.

[0015] Further, the water pump is located below the radiator, and the water pump is located between the first transverse plane and the second transverse plane.

[0016] In the above all-terrain vehicle, the radiator and the water pump are arranged behind the all-terrain vehicle, and the arrangement position and the arrangement distance between the water pump and the radiator are effectively limited, the length of the pipeline assembly connecting the radiator module and the power assembly is effectively shortened, the pipeline connection is simplified, and the required power of the water pump is reduced. In addition, during the travel of the all-terrain vehicle, the radiator, the water pump and the like are hidden in the rear area of the vehicle frame and are not easily impacted or even pierced by external objects, thereby prolonging the service life of the radiator module and the pipeline assembly. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A right side view of the electric all-terrain vehicle provided for the embodiment of the present application is shown in FIG. 1.

[0018] Figure 2 A right side view of the electric all-terrain vehicle provided for the embodiment of the present application is shown in FIG. 1.

[0019] Figure 3 An assembly schematic view of the first embodiment of the water pump provided for the embodiment of the present application is shown in FIG. 2.

[0020] Figure 4 A cooling path connection schematic view of the heat dissipation assembly provided for the embodiment of the present application is shown in FIG. 3.

[0021] Figure 5 An assembly schematic view of the second embodiment of the water pump provided for the embodiment of the present application is shown in FIG. 4. DETAILED DESCRIPTION

[0022] In order to clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following briefly introduces the drawings needed to be used in the embodiment or prior art description, obviously, the following description is only one embodiment of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0023] In order to clearly illustrate the technical solutions of the present application, the front, rear, upper and lower of the electric all-terrain vehicle 100 are defined in the Figure 1 Figure 2 In the description of the present application, the length direction of the electric all-terrain vehicle 100 refers to the front-rear direction of the electric all-terrain vehicle 100, the width direction of the electric all-terrain vehicle 100 refers to the left-right direction of the electric all-terrain vehicle 100, and the height direction of the electric all-terrain vehicle 100 refers to the upper-lower direction of the electric all-terrain vehicle 100.

[0024] As Figure 1 and Figure 3 ​As shown in the figure, the electric all-terrain vehicle 100 comprises a frame 11, a body covering 12, a running assembly 13, a power assembly 14 and a heat dissipation assembly 15. The power assembly 14 is located on and supported by the frame 11. The body covering 12 is at least partially located on and connected with the frame 11, and is substantially used for covering and protecting the power assembly 14. The running assembly 13 is at least partially located below the frame 11 and rotatably connected with the frame 11. The running assembly 13 comprises a front wheel 131 and a rear wheel 132 located behind the front wheel 131. The heat dissipation assembly 15 is at least partially located on and fixedly connected with the frame 11, and is used for heat exchange for the power assembly 14 to stabilize the temperature of the power assembly 14 at a constant level.

[0025] As shown in the figure, Figure 2 The frame 11 comprises an upper support frame 111 and a lower support frame 112 distributed along the height direction of the electric all-terrain vehicle 100, and the upper support frame 111 and the lower support frame 112 extend substantially along the length direction of the electric all-terrain vehicle 100. It can be understood that the upper support frame 111 and the lower support frame 112 constitute the basic support frame of the electric all-terrain vehicle 100, and the frame 11 further comprises a vertical support frame 113 located between the upper support frame 111 and the lower support frame 112. The vertical support frame 113 extends substantially along the height direction of the electric all-terrain vehicle 100, and the upper end of the vertical support frame 113 is connected with the upper support frame 111, and the lower end of the vertical support frame 113 is connected with the lower support frame 112, to form a complete frame 11 component for accommodating and protecting the core components of the electric all-terrain vehicle 100. Optionally, the body covering 12 comprises a seat cushion 121, which is substantially located on and fixedly connected with the upper support frame 111 and supported by the upper support frame 111. The electric all-terrain vehicle 100 further comprises a power battery 16 for providing energy supply for the power assembly 14, which is located between the upper support frame 111 and the lower support frame 112 and supported and protected by the upper support frame 111 and the lower support frame 112. The power battery 16 is at least partially located below the seat cushion 121 and is covered and protected by the seat cushion 121.

[0026] As shown in the figure, Figure 2As shown, the power assembly 14 is at least partially located behind the power battery 16. Optionally, the power assembly 14 is also substantially located between the upper support frame 111 and the lower support frame 112. Optionally, the vertical support frames 113 are substantially paired, i.e., the vertical support frames 113 are distributed substantially along the width direction of the electric all-terrain vehicle 100. A longitudinal plane S101 is defined that is perpendicular to the width direction of the electric all-terrain vehicle 100 and passes through the center of the width of the electric all-terrain vehicle 100. The vertical support frames 113 are substantially symmetrically arranged along the longitudinal plane S101. The power assembly 14 is also at least partially located between the vertical support frames 113 distributed along the width direction of the electric all-terrain vehicle 100, and the vertical support frames 113 provide support and protection for the power assembly 14 in the width direction of the electric all-terrain vehicle 100. Viewed along the length direction of the electric all-terrain vehicle 100, the power assembly 14 at least partially overlaps with the power battery 16.

[0027] like Figure 2 and Figure 3As shown, the electric all-terrain vehicle 100 also includes a suspension assembly 17, which connects the running gear 13 to the frame 11. Specifically, the suspension assembly 17 includes a rear suspension 171, a rear shock absorber 172, and a rear drive shaft 173. The rear suspension 171 forms a rotational connection between the rear wheel 132 and the frame 11. The rear shock absorber 172 connects the rear suspension 171 and the frame 11, forming a stable triangular connection structure between the rear wheel 132 and the frame 11, and effectively absorbing the instantaneous potential energy of the rear wheel 132 during bouncing. The rear drive shaft 173 connects the rear wheel 132 and the power assembly 14, transmitting the driving force of the power assembly 14 to the rear wheel 132, providing driving force for the electric all-terrain vehicle 100. As an alternative implementation, viewed along the width direction of the electric all-terrain vehicle 100, the power assembly 14 substantially overlaps with the rear shock absorber 172, and the power assembly 14 also at least partially overlaps with the rear wheel 132. This configuration effectively reserves sufficient installation space for the power battery 16. Furthermore, along the width direction of the electric all-terrain vehicle 100, the power assembly 14 is basically located between the rear shock absorbers 172 or the rear wheels 132 distributed along the width direction. This configuration allows the driving force of the power assembly 14 to be directly transmitted to the rear wheels 132 through the rear drive shaft 173 without the need for further transmission mechanisms or transmission components, effectively saving space and cost associated with the transmission mechanism. As an alternative implementation, the power system of the power assembly 14 in this application includes a motor (not shown), a reducer 141, and a motor controller (not shown) for controlling the motor. The motor, reducer 141, and motor controller are integrated into one unit. Therefore, since the power assembly 14 already includes the reducer 141, the driving force of the motor can be transmitted through the reducer 141 to the rear drive shaft 173, and further transmitted through the drive shaft to the rear wheels 132.

[0028] Understandably, the power component 14 generates a significant amount of heat during operation, requiring heat exchange with the outside environment through the heat dissipation component 15. The heat dissipation component 15 includes a radiator 151, which is used to dissipate heat from the power component 14. Figure 4As shown, the power assembly 14 has an external cooling flow path 142 for coolant to flow through, and the radiator 151 has an internal heat exchange flow path 152 for coolant to circulate and exchange heat with the outside. The cooling assembly 15 also includes a cooling pipe 153. Specifically, the cooling pipe 153 includes a first cooling pipe 1531 and a second cooling pipe 1532. The first cooling pipe 1531 and the second cooling pipe 1532 are respectively connected to the cooling flow path 142 and the heat exchange flow path 152. The coolant in the cooling flow path 142 can flow from the first cooling pipe 1531 to the heat exchange flow path 152, and the coolant in the heat exchange flow path 152 can further flow back to the cooling flow path 142 through the second cooling pipe 1532. Thus, the power assembly 14 and the radiator 151 form a complete passage through the first cooling pipe 1531 and the second cooling pipe 1532. Understandably, the heat dissipation assembly 15 also includes a cooling fan 154 located on one side of the radiator 151, used to rapidly exchange heat between the coolant in the heat exchange path 152 and the surrounding space, thereby effectively cooling the power assembly 14. Specifically, the cooling fan 154 is located primarily behind the radiator 151 and is fixedly connected to it. The heat dissipation assembly 15 also includes a water pump 155 for providing flow circulation force to the coolant circulation path of the power assembly 14 and the radiator 151. Optionally, the water pump 155 is mounted on and connected to the second heat dissipation pipe 1532.

[0029] like Figure 2As shown, along the width direction of the electric all-terrain vehicle 100, the projection of the axis of the rear shock absorber 172 onto the longitudinal plane S101 is defined as a preset straight line L1. As an alternative implementation, along the width direction of the electric all-terrain vehicle 100, the projection of the heat dissipation component 15 onto the longitudinal plane S101 is substantially located behind the preset straight line L1. In other words, from a side view, if the front of the electric all-terrain vehicle 100 is on the left, the projections of the radiator 151 and the water pump 155 along the width direction of the electric all-terrain vehicle 100 onto the longitudinal plane S101 are substantially located on the right side of the preset straight line L1. This arrangement effectively positions the heat dissipation component 15 in the rear region of the electric all-terrain vehicle 100, minimizing its impact on the front space of the frame 11 and reserving sufficient installation space for the power component 14 and the power battery 16 of the electric all-terrain vehicle 100. Furthermore, the radiator 151 is at least partially located behind the power component 14. An imaginary plane perpendicular to the length of the electric all-terrain vehicle 100 and passing through at least one point at the rear end of the power assembly 14 is defined as the first transverse plane S102. Optionally, the radiator 151 is at least partially located behind the first transverse plane S102, and the length of the radiator 151 behind the first transverse plane S102 is greater than or equal to 50% of the length of the radiator 151. As mentioned above, the radiator 151 is at least partially located above the power assembly 14. Furthermore, when viewed along the length of the electric all-terrain vehicle 100, the overlap height between the radiator 151 and the power assembly 14 does not exceed 25% of the height of the radiator 151. The above arrangement can effectively create a certain heat insulation distance between the power assembly 14 and the radiator 151, and prevent the heat generated by the power assembly 14 from affecting the heat dissipation efficiency of the radiator 151.

[0030] Understandably, the “length of radiator 151” mentioned in the above description refers to the length occupied by radiator 151 along the length direction of electric all-terrain vehicle 100; the “height of radiator 151” refers to the length occupied by radiator 151 along the height direction of electric all-terrain vehicle 100; and the “overlap height of radiator 151 and power assembly 14” refers to the length of the projection of the overlapping portion of radiator 151 and power assembly 14 on the first transverse plane S102 along the height direction of electric all-terrain vehicle 100 along the length direction of electric all-terrain vehicle 100.

[0031] like Figure 2 and Figure 3As shown, the radiator 151 is substantially located on and fixedly connected to the frame 11. Specifically, the radiator 151 is at least partially located between vertical support frames 113 distributed along the width direction, and a mounting bracket 1131 is formed between the vertical support frames 113 on both sides of the radiator 151 in the width direction. The mounting bracket 1131 extends along the width direction, and its two ends are fixedly connected to the vertical support frames 113 respectively. Specifically, the upper end of the radiator 151 is connected to the upper support frame 111, and the lower end of the radiator 151 is connected to the mounting bracket 1131. As an alternative implementation, the radiator 151 is detachably connected to the upper support frame 111 and the mounting bracket 1131 via a connector. The radiator 151 also includes a damping plate 156, which is located between the radiator 151 and the upper support frame 111. Some of the damping plates 156 are also located at least partially between the mounting bracket 1131 and the radiator 151, in order to reduce the vibration generated between the radiator 151 and the frame 11 during operation and effectively extend the service life of the radiator 151.

[0032] An imaginary plane perpendicular to the length of the electric all-terrain vehicle 100 and passing through at least one point at the rear end of the frame 11 is defined as the second transverse plane S103. As an alternative implementation, the radiator 151 is substantially located in front of the second transverse plane S103. This arrangement effectively places the radiator 151 within the effective protection area of ​​the frame 11, preventing it from being outside the frame's protection range. In some embodiments, although the radiator 151 is located behind the second transverse plane S103, a space unprotected by the frame 11 still exists between the upper support frame 111 and the mounting bracket 1131. If a forward impact occurs between the upper support frame 111 and the mounting bracket 1131, damage to the radiator 151 may still occur. In view of this, the frame 11 also includes a crash beam 114. Viewed along the length of the electric all-terrain vehicle 100, the crash beam 114 is basically located between the upper support frame 111 and the lower support frame 112, and the crash beam 114 basically overlaps with the radiator 151. Specifically, the crash beam 114 is detachably connected to the vertical support frame 113. This connection method allows for easy disassembly of the crash beam 114 when the radiator 151 is being repaired or routinely maintained, providing good visibility and operating space for the maintenance and repair of the radiator 151.

[0033] like Figure 2As shown, the anti-collision beam 114 includes a first anti-collision bracket 1141 that at least partially surrounds the radiator 151. The first anti-collision bracket 1141 extends substantially along the width and length directions of the electric all-terrain vehicle 100. The anti-collision beam 114 also includes a second anti-collision bracket 1142 that extends substantially along the height direction of the electric all-terrain vehicle 100. One end of the second anti-collision bracket 1142 is fixedly connected to or integrally formed with the first anti-collision bracket 1141, and the other end of the second anti-collision bracket 1142 is detachably connected to the vertical support frame 113. Optionally, the rear end of the anti-collision beam 114 is located behind the second transverse plane S103. Specifically, the distance H between the rear end of the anti-collision beam 114 and the second transverse plane S103 is greater than or equal to 50 mm and less than or equal to 150 mm. This arrangement allows for a certain amount of impact buffer space between the anti-collision beam 114 and the radiator 151. Even after the anti-collision beam 114 is deformed by an impact, there is still an installation distance to prevent damage to the radiator 151. Furthermore, for the sake of the appearance of the electric all-terrain vehicle 100 or to provide protection behind the radiator 151, the body panel 12 also includes a rear panel 122 located behind the radiator 151. The aforementioned distance setting effectively limits the distance between the rear panel 122 and the radiator 151, ensuring sufficient heat dissipation distance between them and avoiding a reduction in the heat dissipation efficiency of the radiator 151.

[0034] like Figure 2As shown, along the width direction of the electric all-terrain vehicle 100, the projection of the water pump 155 on the longitudinal plane S101 is located behind a predetermined straight line L1. As an alternative implementation, the water pump 155 and the radiator 151 are distributed substantially along the width direction of the electric all-terrain vehicle 100; more specifically, the water pump 155 is located to the left of the radiator 151. When the water pump 155 is located to the left of the radiator 151, viewed along the length direction of the electric all-terrain vehicle 100, the water pump 155 and the radiator 151 do not overlap, nor does the water pump 155 overlap with the power unit 14. As previously mentioned, the radiator 151 is substantially located between vertical support frames 113 distributed along the width direction. In this embodiment, the water pump 155 is located to the left of the left vertical support frame 113 and is connected to the left vertical support frame 113. Optionally, in this embodiment, viewed along the width of the electric all-terrain vehicle 100, the water pump 155 is at least partially located between the radiator 151 and the power assembly 14, and the water pump 155 at least partially overlaps with the power assembly 14, and also at least partially overlaps with the radiator 151. This arrangement effectively utilizes the space on the left side of the radiator assembly 15 and the power assembly 14 located on the side of the vertical support frame 113 away from the longitudinal plane S101, and can be connected to the vehicle frame 11 using the longitudinal support frame. It also provides a shorter pipe connection path to the radiator 151, while allowing for quick disassembly and maintenance of the water pump 155. Understandably, the water pump 155 can also be located on the right side of the radiator 151.

[0035] like Figure 5 As shown, as another alternative implementation, the water pump 155 and radiator 151 can also be distributed along the height direction of the electric all-terrain vehicle 100. Specifically, the water pump 155 is located below the anti-collision beam 114 and the radiator 151. Viewed from the length direction of the electric all-terrain vehicle 100, the water pump 155 substantially overlaps with the power assembly 14, and the water pump 155 does not overlap with the radiator 151. In this embodiment, the water pump 155 is fixedly connected to the vertical support frame 113.

[0036] Regardless of the location of the water pump 155 on the radiator 151, along the width direction of the electric all-terrain vehicle 100, the projections of the water pump 155 and the radiator 151 are always located between the preset straight line L1 and the second transverse plane S103. When the water pump 155 is located to the left or right of the radiator 151, the water pump 155 is located between the preset straight line L1 and the first transverse plane S102. When the water pump 155 is located below the radiator 151, the water pump 155 is located between the first transverse plane S102 and the second transverse plane S103.

[0037] like Figure 3As shown, the heat dissipation assembly 15 also includes an auxiliary water tank 157 for replenishing the coolant in the radiator 151. The heat dissipation pipe 153 also includes a water replenishment pipe 1533, which flows through the auxiliary water tank 157 and the radiator 151 to replenish the coolant in the radiator 151 when it is insufficient, and to balance the pressure when the internal pressure of the radiator 151 is too high. Optionally, the auxiliary water tank 157 is at least partially located behind the radiator 151, and to save space at the rear of the electric all-terrain vehicle 100 and improve the compactness of the layout, the auxiliary water tank 157 is connected to the radiator 151 and is supported by the radiator 151. More specifically, along the width direction of the electric all-terrain vehicle 100, the auxiliary water tank 157 is located on one side of the cooling fan 154. More specifically, the auxiliary water tank 157 is located between the cooling fan 154 and the vertical support frame 113. Viewed along the length of the electric all-terrain vehicle 100, the anti-collision beam 114 and the auxiliary water tank 157 at least partially overlap. This not only allows for a more compact space for the heat dissipation assembly 15, but also ensures that the auxiliary water tank 157 is protected by the vertical support frame 113 in the width direction and by the anti-collision beam 114 in the length direction, effectively improving the safety of the heat dissipation assembly 15 on the electric all-terrain vehicle 100.

[0038] like Figure 2 As shown, the electric all-terrain vehicle 100 also includes an electrical assembly 19. As previously mentioned, the radiator 151 is at least located behind the power assembly 14 and at least partially located above the power assembly 14. It is understood that a certain installation space is formed between the upper support frame 111 and the power assembly 14. In this application, at least a portion of the electrical assembly 19 is located in this installation space. Specifically, the electrical assembly 19 can be a vehicle controller 191 (VCU, Electronic Control Unit), which is at least partially located behind the radiator 15 and between the upper support frame 111 and the power assembly 14. Furthermore, when the seat cushion 121 is assembled with the upper support frame 111, the vehicle controller 191 is also at least partially located below the seat cushion 121. It is understood that the electrical assembly 19 can also be a fuse box or other components, as long as it achieves compact installation in the rear space of the electric all-terrain vehicle 100, it falls within the scope of protection of this application.

[0039] Understandably, the description of "below the frame 11" or other locations relating to the frame 11 in this application is substantially consistent with the description of "below the electric all-terrain vehicle 100" or other locations.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. An electric all-terrain vehicle, comprising, Frame; A body panel, said body panel being at least partially located on the vehicle frame; A running gear assembly, the running gear assembly including a rear wheel rotatably connected to the frame; A powertrain assembly, which is located on and connected to the vehicle frame; A suspension assembly, wherein the rear wheel is connected to the vehicle frame via the suspension assembly; A heat dissipation assembly, which is located on and connected to the vehicle frame, includes a radiator and a water pump; The feature is that the heat dissipation assembly further includes heat dissipation pipes, the radiator is connected to the power assembly through the heat dissipation pipes, and the water pump is connected to the heat dissipation pipes; the suspension assembly further includes a rear shock absorber, defining a longitudinal plane perpendicular to the width direction of the electric all-terrain vehicle and passing through the center of the width of the electric all-terrain vehicle, and defining the projection of the axis of the rear shock absorber onto the longitudinal plane along the width direction of the electric all-terrain vehicle as a preset straight line; from the side view, if the front of the electric all-terrain vehicle is on the left, then the projections of the radiator and the water pump along the width direction of the electric all-terrain vehicle onto the longitudinal plane are basically located to the right of the preset straight line.

2. The electric all-terrain vehicle according to claim 1, characterized in that, Viewed along the width of the electric all-terrain vehicle, the suspension assembly and the power assembly at least partially overlap.

3. The electric all-terrain vehicle according to claim 1, characterized in that, An imaginary plane perpendicular to the length of the electric all-terrain vehicle and containing at least one point at the rearmost end of the power assembly is defined as the first lateral plane; the radiator is at least partially located behind the first lateral plane, and the length of the radiator behind the first lateral plane is greater than or equal to 50% of the length of the heat dissipation assembly.

4. The electric all-terrain vehicle according to claim 3, characterized in that, The radiator is at least partially located above the power unit, and when viewed along the length of the electric all-terrain vehicle, the overlap height between the radiator and the power unit is less than or equal to 25% of the height of the radiator.

5. The electric all-terrain vehicle according to claim 3, characterized in that, The vehicle frame includes an upper support frame, a lower support frame, and a vertical support frame. The upper and lower support frames are distributed substantially along the height direction of the electric all-terrain vehicle. The vertical support frames are located between the upper and lower support frames and are distributed along the width direction of the electric all-terrain vehicle. A mounting bracket is formed between the vertical support frames. The upper end of the radiator is detachably connected to the upper support frame, and the lower end of the radiator is detachably connected to the mounting bracket.

6. The electric all-terrain vehicle according to claim 5, characterized in that, If an imaginary plane perpendicular to the length of the electric all-terrain vehicle and containing at least one point at the rear end of the frame is defined as the second transverse plane, then when viewed along the front-rear direction of the electric all-terrain vehicle, the radiator is located in front of the second transverse plane.

7. The electric all-terrain vehicle according to claim 6, characterized in that, The vehicle frame also includes a crash beam, which is located behind the vertical support frame and is detachably connected to the vertical support frame; when viewed along the length of the electric all-terrain vehicle, the crash beam at least partially overlaps with the radiator.

8. The electric all-terrain vehicle according to claim 7, characterized in that, The distance between the rear end of the anti-collision beam and the second transverse plane is greater than or equal to 50 mm and less than or equal to 150 mm.

9. The electric all-terrain vehicle according to claim 7, characterized in that, The water pump and the radiator are distributed along the width of the electric all-terrain vehicle, and the water pump is located on the side of the vertical support frame away from the radiator and is detachably connected to the vertical support frame.

10. The electric all-terrain vehicle according to claim 7, characterized in that, The water pump is located below the radiator and between the first transverse plane and the second transverse plane.