All-terrain vehicle

By placing the power battery under the seat in the all-terrain vehicle and optimizing the arrangement of the range extender and drive motor, the problems of structural compactness and ride comfort of the all-terrain vehicle have been solved, resulting in higher range and driving stability.

CN119428125BActive Publication Date: 2026-06-02ZHEJIANG CFMOTO POWER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG CFMOTO POWER CO LTD
Filing Date
2023-07-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing all-terrain vehicles cannot effectively accommodate components such as range extenders, drive motors, and power batteries, affecting structural compactness, handling stability, and ride comfort.

Method used

The power battery is placed under the seat assembly, the range extender and drive motor are partially overlapped and arranged in a space within the mid-mounted frame, optimizing the projection ratio and distance between the seat and the battery. Combined with the protective plate structure and heat dissipation space design, this improves space utilization and comfort.

Benefits of technology

It improves the compactness, range, and ride comfort of all-terrain vehicles, enhances human-machine interaction and driving stability, and optimizes battery heat dissipation and space utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of all-terrain vehicles, which includes frame, body covering, walking component, seat component, power component and power battery.Body covering is at least partially disposed on the frame;Walking component is disposed below the frame and includes front wheel and rear wheel;Seat component is at least partially disposed on the frame;Power component is supported by the frame and includes range extender and driving motor, and the range extender provides energy for the driving motor;Power battery is electrically connected to the range extender and the driving motor;The frame includes a mid-mounted frame disposed between the front wheel and the rear wheel, which forms an accommodation space around the mid-mounted frame, and the power battery is at least partially disposed in the accommodation space.The power battery is also disposed on the underside of the seat component, which includes at least one row of seats.The length of the power battery in the length direction of the all-terrain vehicle is greater than the length of the row of seats in the length direction of the all-terrain vehicle.Through the above arrangement, the compactness and comfort of the all-terrain vehicle can be improved.
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Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to an all-terrain vehicle. Background Technology

[0002] An all-terrain vehicle (ATV) is a four-wheeled off-road vehicle designed for all-weather, all-terrain driving. Hybrid ATVs, in particular, combine the power and energy supply components of both gasoline and electric ATVs—including a range extender, drive motor, and battery—resulting in higher spatial requirements for their design and overall structural compactness. This compactness is crucial for the vehicle's handling stability, driving safety, and passenger comfort. However, existing ATVs cannot accommodate the placement of components such as the range extender, drive motor, and battery, thus impacting their structural compactness.

[0003] In addition, components such as range extenders, drive motors, and power batteries require a large amount of space, which can affect the spatial structure of the cockpit and consequently the comfort of passengers or drivers in the cockpit. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an all-terrain vehicle with a compact structure and good comfort.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An all-terrain vehicle includes a frame, body panels, a running gear, a seat assembly, a power assembly, and a power battery. The body panels are at least partially mounted on the frame; the running gear is disposed below the frame and includes front and rear wheels; the seat assembly is at least partially mounted on the frame and includes at least one row of seats; the power assembly is supported by the frame and includes a range extender and a drive motor, the range extender providing power to the drive motor, the drive motor driving at least one of the front and rear wheels; the power battery is electrically connected to the range extender and the drive motor; the frame includes a centrally mounted frame disposed between the front and rear wheels, the centrally mounted frame having a receiving space around which the power battery is at least partially disposed, and the power battery is also disposed below the seat assembly, the length of the power battery along the length of the all-terrain vehicle being greater than the length of one row of seats along the length of the all-terrain vehicle.

[0007] Furthermore, a reference plane is defined perpendicular to the height direction of the all-terrain vehicle. The projection of the power battery along the height direction onto the reference plane is the first projection plane, and the projection of the seat assembly along the height direction onto the first projection plane is the second projection plane. The ratio of the area of ​​the second projection plane to the area of ​​the first projection plane is greater than or equal to 0.59 and less than or equal to 0.9.

[0008] Furthermore, the seat assembly includes a front seat, the projection of the front seat along the height direction onto the first projection plane being a third projection plane, and the ratio of the area of ​​the third projection plane to the area of ​​the first projection plane being greater than or equal to 0.49 and less than or equal to 0.74.

[0009] Furthermore, the seat assembly includes a rear seat disposed behind the front seats, the projection of the rear seat on the first projection plane along the height direction is a fourth projection plane, and the ratio of the area of ​​the fourth projection plane to the area of ​​the first projection plane is greater than or equal to 0.1 and less than or equal to 0.18.

[0010] Furthermore, the lowest points of both the front and rear wheels are basically located on the reference plane, and the minimum distance between the power battery and the reference plane is set to be greater than or equal to 220mm and less than or equal to 420mm.

[0011] Furthermore, the length of the power battery along the length direction of the all-terrain vehicle is set as the battery length, the projection of the axle of the front wheel along the height direction onto the reference plane is the first projection line, the projection of the axle of the rear wheel along the height direction onto the reference plane is the second projection line, the distance between the first projection line and the second projection line in the length direction is set as the wheel axle distance, and the ratio of the battery length to the wheel axle distance is greater than or equal to 0.17 and less than or equal to 0.34.

[0012] Furthermore, the distance between the foremost point of the first projection surface and the first projection line along the length direction is set as the first distance, and the distance between the rearmost point of the first projection surface and the second projection line along the length direction is set as the second distance. The ratio of the first distance to the second distance is greater than or equal to 0.61 and less than or equal to 1.14.

[0013] Furthermore, the body panel includes a protective plate structure located below the power battery. The protective plate structure is connected to the mid-mounted frame and forms a heat dissipation space. The power battery is at least partially located in the heat dissipation space, which is also connected to the outside.

[0014] Furthermore, the lower side of the mid-mounted frame is provided with several connection points, through which the power battery is fixedly connected to the mid-mounted frame; the lower side of the mid-mounted frame is also provided with positioning points to limit the relative position between the mid-mounted frame and the power battery. After the mid-mounted frame and the power battery are positioned by the positioning points, the power battery is fixedly connected to the mid-mounted frame through the connection points.

[0015] Furthermore, the bottom of the power battery is located on the lower side of the bottom of the mid-mounted frame.

[0016] By placing the power battery under the seat assembly and making the width of the power battery greater than the width of a seat, the aforementioned all-terrain vehicle can increase the volume of the power battery while meeting the arrangement requirements of the front and rear components of the seat assembly. This increases the capacity of the power battery, thereby improving the range of the all-terrain vehicle. At the same time, it also improves the space utilization of the power battery in the all-terrain vehicle, making the structure of the all-terrain vehicle more compact. Furthermore, it can prevent the relative position of the power assembly and the seat assembly from affecting the riding experience of the driver and / or passengers, thereby improving the human-machine interaction and comfort of the all-terrain vehicle. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the all-terrain vehicle of this application.

[0018] Figure 2 This is a structural diagram of the frame and power unit of the all-terrain vehicle of this application.

[0019] Figure 3 This is a structural schematic diagram of the rear frame and components located in the rear frame of this application.

[0020] Figure 4 This is a partial structural side view of the all-terrain vehicle of this application.

[0021] Figure 5 This is an exploded view of the frame, power battery, and protective plate structure of the all-terrain vehicle of this application.

[0022] Figure 6 This is an exploded view of the power battery of the all-terrain vehicle of this application.

[0023] Figure 7 This is a rear view of a portion of the structure of the all-terrain vehicle of this application.

[0024] Figure 8 This is an exploded view of the vehicle frame, seat assembly, range extender, and intake assembly of this application.

[0025] Figure 9 This is a schematic diagram showing the layout of some structures of the all-terrain vehicle of this application.

[0026] Figure 10 For this application Figure 9 A magnified view of a portion of point A in the middle.

[0027] Figure 11 This is a top view of the rear frame and components located in the rear frame of this application.

[0028] Figure 12 This is a schematic diagram of the range extender, exhaust assembly and controller assembly of this application.

[0029] Figure 13This is a schematic diagram of the drive motor, controller assembly, and motor controller of this application. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in specific embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] like Figures 1 to 4 An all-terrain vehicle 100 is shown, comprising a frame 11, a body panel 12, a running gear 13, a power unit 14, a power battery 15, a transmission assembly 16, a seat assembly 17, and a cargo box assembly 18. The frame 11 serves as the basic framework of the all-terrain vehicle 100, supporting the body panel 12, running gear 13, power unit 14, power battery 15, transmission assembly 16, seat assembly 17, and cargo box assembly 18. The body panel 12 is at least partially mounted on the frame 11, and the connection between the body panel 12 and the frame 11 forms a protective frame for protecting the internal components of the all-terrain vehicle 100. The running gear 13 is at least partially disposed below the frame 11, and includes a front wheel 131 and a rear wheel 132. The power unit 14 is supported by the frame 11 and is transmitted via the transmission assembly 16 to at least one of the front wheel 131 and the rear wheel 132, enabling the power unit 14 to drive the all-terrain vehicle 100. A power battery 15 is at least partially disposed on the frame 11, and the power battery 15 can also provide energy to the power assembly 14. A seat assembly 17 is at least partially disposed on the frame 11 and is used to provide support for the driver and passenger. A cargo box assembly 18 is at least partially disposed on the rear side of the frame 11 and is used for carrying cargo for the all-terrain vehicle 100. Specifically, the frame 11 includes a rear frame 111 disposed at the rear of the frame 11, the rear frame 111 surrounding a receiving space 1111, and the power assembly 14 is at least partially disposed in the receiving space 1111. To clearly illustrate the technical solution of the present invention, terms such as Figure 1 The front, rear, left, right, upper, and lower sides are shown. In this application, the front-rear direction of the all-terrain vehicle 100 refers to the length direction of the all-terrain vehicle 100, the left-right direction of the all-terrain vehicle 100 refers to the width direction of the all-terrain vehicle 100, and the up-down direction of the all-terrain vehicle 100 refers to the height direction of the all-terrain vehicle 100.

[0032] In one implementation, the power unit 14 includes a drive motor 141 and a range extender 142, both of which are at least partially disposed within the receiving space 1111. The range extender 142 provides power to the drive motor 141, which drives at least one of the front wheels 131 and the rear wheels 132. A power battery 15 is electrically connected to the range extender 142 to charge the power battery 15; the power battery 15 is also electrically connected to the drive motor 141 to power the drive motor 141.

[0033] like Figure 3 As shown, a reference plane 101 is defined perpendicular to the height direction of the all-terrain vehicle 100. The projection of the rear frame 111 onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is the first projection plane. The projections of the range extender 142 and the drive motor 141 onto the first projection plane along the height direction of the all-terrain vehicle 100 are the second projection plane. The ratio of the area of ​​the second projection plane to the area of ​​the first projection plane is greater than or equal to 0.26 and less than or equal to 0.49. The first projection surface is the projection of the accommodating space 1111 formed by the rear-mounted frame 111 onto the reference plane 101 along the height direction of the all-terrain vehicle 100. Both the range extender 142 and the drive motor 141 have housings. The second projection surface is the total projection of the housings of the range extender 142 and the drive motor 141 along the height direction of the all-terrain vehicle 100 onto the reference plane 101. That is, the second projection surface does not include the projections of wiring harnesses and other structures on the range extender 142 and drive motor 141, but only the projections of the bodies of the range extender 142 and drive motor 141. Specifically, the ratio of the area of ​​the second projection surface to the area of ​​the first projection surface is greater than or equal to 0.3 and less than or equal to 0.42. More specifically, the ratio of the area of ​​the second projection surface to the area of ​​the first projection surface can also be 0.37. The above configuration can prevent the second projection surface from being too small, which would be detrimental to the arrangement of the range extender 142 and the drive motor 141, and can also prevent the second projection surface from being too large, which would occupy too much space on the frame 11. Thus, while meeting the arrangement requirements of the range extender 142 and the drive motor 141, it is beneficial to the arrangement of other components of the all-terrain vehicle 100, and prevents interference between the power unit 14 and other components of the all-terrain vehicle 100, thereby improving the space utilization and structural compactness of the all-terrain vehicle 100.

[0034] In this embodiment, when viewed from the width direction of the all-terrain vehicle 100, the drive motor 141 and the range extender 142 at least partially overlap. When viewed from the length direction of the all-terrain vehicle 100, the drive motor 141 and the range extender 142 at least partially overlap. With this arrangement, the space occupancy rate of the drive motor 141 and the range extender 142 can be reduced without affecting their normal operation, making their structure more compact and improving the space utilization and structural compactness of the all-terrain vehicle 100. Specifically, the drive motor 141 is at least partially disposed on the rear side of the range extender 142.

[0035] In one implementation, the drive motor 141 and the range extender 142 are distributed along the width direction of the all-terrain vehicle 100. Specifically, along the width direction of the all-terrain vehicle 100, the drive motor 141 is at least partially disposed on a first side of the all-terrain vehicle 100, and the range extender 142 is at least partially disposed on a second side of the all-terrain vehicle 100 away from the first side. The first side can be either the left or right side of the all-terrain vehicle 100, and the second side can be either the right or left side of the all-terrain vehicle 100, as long as the first side and the second side are different sides of the all-terrain vehicle 100. In this embodiment, a longitudinal plane 102 perpendicular to the width direction of the all-terrain vehicle 100 is defined. The all-terrain vehicle 100 is basically symmetrically arranged about the longitudinal plane 102. The center of gravity of the drive motor 141 and the center of gravity of the range extender 142 are respectively located on both sides of the longitudinal plane 102, thereby making the load of the drive motor 141 and the range extender 142 on the all-terrain vehicle 100 more even. That is, by distributing the drive motor 141 and the range extender 142 along the width direction of the all-terrain vehicle 100, the center of gravity of the all-terrain vehicle 100 is made closer to the longitudinal plane 102, thereby improving the driving stability of the all-terrain vehicle 100.

[0036] In one implementation, the all-terrain vehicle 100 also includes an intake assembly 19 and an exhaust assembly 21. The intake assembly 19 is connected to the intake duct of the range extender 142, and the exhaust assembly 21 is connected to the exhaust duct of the range extender 142. The intake assembly 19 is used to supply outside air to the range extender 142, and the exhaust assembly 21 is used to discharge the exhaust gas generated by the operation of the range extender 142. The range extender 142 includes a crankshaft mechanism 1421, which extends substantially along the length of the all-terrain vehicle 100. Along the width of the all-terrain vehicle 100, the intake assembly 19 and the exhaust assembly 21 are respectively disposed on both sides of the crankshaft mechanism 1421. Specifically, the exhaust assembly 21 is at least partially disposed on the side of the range extender 142 away from the drive motor 141, and the intake assembly 19 is at least partially disposed on the side of the range extender 142 closer to the drive motor 141, that is, the exhaust assembly 21 is disposed near the outer side of the all-terrain vehicle 100, and the intake assembly 19 is disposed near the inner side of the all-terrain vehicle 100. By adopting the above configuration, the length of the exhaust assembly 21 can be shortened while meeting the performance requirements of the range extender 142, which is beneficial to improving the structural compactness of the exhaust assembly 21. Simultaneously, it avoids the exhaust assembly 21 and the drive motor 141 being too close, thus preventing the drive motor 141 from affecting normal operation and improving the working stability of the all-terrain vehicle 100. In this embodiment, the exhaust assembly 21 includes an exhaust pipe 211 connected to the range extender 142. The length L1 of the exhaust pipe 211 along the exhaust direction is set to be greater than or equal to 800 mm and less than or equal to 1300 mm. Specifically, the length L1 of the exhaust pipe 211 along the exhaust direction can also be set to 1031 mm. The exhaust direction refers to the direction in which the exhaust gas generated by the range extender 142 moves within the exhaust pipe 211. By adopting the above configuration, the length of the exhaust assembly 21 can be shortened while meeting the performance requirements of the range extender 142, which is beneficial to improving the structural compactness of the exhaust assembly 21.

[0037] like Figure 4As shown, in one implementation, the frame 11 also includes a mid-mounted frame 112 disposed between the front wheel 131 and the rear wheel 132. The mid-mounted frame 112 surrounds a receiving space 1121, in which the power battery 15 is at least partially disposed. The power battery 15 is also at least partially disposed under the seat assembly 17. The seat assembly 17 includes at least one row of seats, and the length of the power battery 15 along the length of the all-terrain vehicle 100 is greater than the length of one row of seats along the length of the all-terrain vehicle 100. Further, a reference plane 101 perpendicular to the height direction of the all-terrain vehicle 100 is defined. The projection of the power battery 15 along the height direction of the all-terrain vehicle 100 onto the reference plane 101 is a first projection plane, and the projection of the seat assembly 17 along the height direction of the all-terrain vehicle 100 onto the first projection plane is a second projection plane. The ratio of the area of ​​the second projection plane to the area of ​​the first projection plane is greater than or equal to 0.34 and less than or equal to 0.65. The second projection surface refers to the total projection of all seat cushions of the seat assembly 17 onto the first projection surface along the height direction of the all-terrain vehicle 100. Specifically, the ratio of the area of ​​the second projection surface to the area of ​​the first projection surface is greater than or equal to 0.41 and less than or equal to 0.57. More specifically, the ratio of the area of ​​the second projection surface to the area of ​​the first projection surface can also be 0.49. With the above arrangement, the volume of the power battery 15 can be increased while meeting the arrangement requirements of the front and rear components of the seat assembly 17, thereby increasing the capacity of the power battery 15 and thus improving the range of the all-terrain vehicle 100. At the same time, it also improves the space utilization rate of the power battery 15 in the all-terrain vehicle 100, making the structure of the all-terrain vehicle 100 more compact. In addition, with the above arrangement, the relative position of the power assembly 15 and the seat assembly 17 can be prevented from affecting the riding experience of the driver and / or passengers, thereby improving the human-machine interaction and comfort of the all-terrain vehicle 100.

[0038] In this embodiment, the seat assembly 17 includes a front seat 171 and a rear seat 172 disposed behind the front seat 171. The front seat 171 includes a front seat cushion 1711, the projection of the front seat cushion 1711 onto a first projection plane along the height direction of the all-terrain vehicle 100 is a third projection plane. The rear seat 172 includes a seat cushion 1722, the projection of the seat cushion 1722 onto the first projection plane along the height direction of the all-terrain vehicle 100 is a fourth projection plane. The ratio of the area of ​​the third projection plane to the area of ​​the first projection plane is greater than or equal to 0.24 and less than or equal to 0.47, and the ratio of the area of ​​the fourth projection plane to the area of ​​the first projection plane is greater than or equal to 0.1 and less than or equal to 0.18. Specifically, the ratio of the area of ​​the third projection plane to the area of ​​the first projection plane is greater than or equal to 0.3 and less than or equal to 0.42, and the ratio of the area of ​​the fourth projection plane to the area of ​​the first projection plane is greater than or equal to 0.12 and less than or equal to 0.16. More specifically, the ratio of the area of ​​the third projection surface to the area of ​​the first projection surface can also be 0.36, and the ratio of the area of ​​the fourth projection surface to the area of ​​the first projection surface can also be 0.14. Through the above arrangement, the power battery 15 can avoid affecting the arrangement of components such as the brake and accelerator pedals on the front side of the front seat 171, and it can also avoid affecting the arrangement of components such as the power assembly 14 on the rear side of the rear seat 172. This allows for increasing the volume of the power battery 15 while meeting the arrangement requirements of components such as the power assembly 14, thereby improving the range and structural compactness of the all-terrain vehicle 100.

[0039] In one implementation, the length of the power battery 15 along the length of the all-terrain vehicle 100 is set as battery length L2. The projection of the axle of the front wheel 131 along the height direction of the all-terrain vehicle 100 onto the reference plane 101 is the first projection line, and the projection of the axle of the rear wheel 132 along the height direction of the all-terrain vehicle 100 onto the reference plane 101 is the second projection line. The distance between the first projection line and the second projection line along the length of the all-terrain vehicle 100 is set as axle distance L3. The ratio of battery length L2 to axle distance L3 is greater than or equal to 0.17 and less than or equal to 0.34. Specifically, the ratio of battery length L2 to axle distance L3 is greater than or equal to 0.21 and less than or equal to 0.3. More specifically, the ratio of battery length L2 to axle distance L3 can also be 0.26.

[0040] In this embodiment, the projection of the power battery 15 onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is designated as the first projection plane. The distance between the foremost point of the first projection plane and the first projection line along the length direction of the all-terrain vehicle 100 is set as the first distance L4. The distance between the rearmost point of the first projection plane and the second projection line along the length direction of the all-terrain vehicle 100 is set as the second distance L5. The ratio of the first distance L4 to the second distance L5 is greater than or equal to 0.61 and less than or equal to 1.14. Specifically, the ratio of the first distance L4 to the second distance L5 is greater than or equal to 0.74 and less than or equal to 1. More specifically, the ratio of the first distance L4 to the second distance L5 can also be greater than or equal to 0.88.

[0041] If the battery length L2 is too small, it will affect the capacity of the power battery 15, thus reducing the range of the all-terrain vehicle 100. If the battery length L2 is too large, or the ratio of the first distance L4 to the second distance L5 is too large or too small, it will interfere with the front wheel 131 and the components on the front side of the all-terrain vehicle 100, and / or interfere with the rear wheel 132 and the components on the rear side of the all-terrain vehicle 100. Therefore, through the above settings, the structural compactness of the all-terrain vehicle 100 can be improved while meeting the range requirements of the all-terrain vehicle 100 and the arrangement requirements of the power battery 15 and other components of the all-terrain vehicle 100, and the driving stability of the all-terrain vehicle 100 can be improved.

[0042] like Figure 4 , Figure 5 and Figure 6 As shown, in one implementation, the vehicle body panel 12 includes a protective plate structure 121, which is disposed on the lower side of the power battery 15 to protect the power battery 15. The protective plate structure 121 is connected to the mid-mounted frame 112 to form a heat dissipation space 1211. The power battery 15 is at least partially disposed in the heat dissipation space 1211, which is also connected to the outside environment. This allows air to be supplied from the outside to the heat dissipation space 1211 during the operation of the all-terrain vehicle 100, thereby cooling the power battery 15 located in the heat dissipation space 1211 and improving the heat dissipation effect of the power battery 15, which is beneficial to improving the stable operation of the power battery 15.

[0043] In this embodiment, a plurality of connection points 1122 are provided on the lower side of the mid-mounted frame 112. The power battery 15 is fixedly connected to the mid-mounted frame 112 through the connection points 1122, so that the power battery 15 can be installed from the lower side of the all-terrain vehicle 100 onto the mid-mounted frame 112, thereby improving the ease of installation and removal of the power battery 15 without disassembling other components. In addition, a positioning point 1123 is also provided on the lower side of the mid-mounted frame 112. The positioning point 1123 is used to limit the relative position between the mid-mounted frame 112 and the power battery 15, so that after the mid-mounted frame 112 and the power battery 15 are positioned by the positioning point 1123, the power battery 15 is fixedly connected to the mid-mounted frame 112 through the connection points 1122, thereby improving the installation accuracy of the power battery 15 and the mid-mounted frame 112. The positioning point 1123 can be set as a first positioning hole, and the power battery 15 can be provided with a second positioning hole that cooperates with the first positioning hole. The first positioning hole and the second positioning hole can be connected by a positioning pin to realize the positioning of the power battery 15 and the mid-mounted frame 112.

[0044] In one implementation, the lowest point of the power battery 15 is positioned below the lowest point of the mid-mounted frame 112, thus placing the lowest point of the power battery 15 below the frame 11. This lowers the center of gravity of the all-terrain vehicle 100, thereby improving its driving stability and handling. In this embodiment, the lowest points of both the front wheel 131 and the rear wheel 132 are substantially located on the reference plane 101. The minimum distance H1 between the power battery 15 and the reference plane 101 is set to be greater than or equal to 220 mm and less than or equal to 420 mm. Here, the minimum distance H1 in this application refers to the ground clearance of the power battery 15. Specifically, the minimum distance H1 between the power battery 15 and the reference plane 101 is set to be greater than or equal to 270 mm and less than or equal to 370 mm. More specifically, the minimum distance H1 between the power battery 15 and the reference plane 101 is set to 320 mm. The above settings can prevent the power battery 15 from having an excessively high ground clearance, which would be detrimental to lowering the center of gravity of the all-terrain vehicle 100. This lowers the center of gravity of the all-terrain vehicle 100, thereby improving its driving stability and handling. It can also prevent the power battery 15 from having an excessively low ground clearance, which would reduce the passability of the all-terrain vehicle 100. This allows the all-terrain vehicle 100 to meet its driving needs on complex terrain.

[0045] In one implementation, the transmission assembly 16 includes a drive shaft 162 and a reducer 161. The reducer 161 is mounted on and driven by the drive motor 141. The reducer 161 is also rotatably connected to the drive shaft 162, which is also driven by at least one of the front wheel 131 and the rear wheel 132. This allows the drive motor 141 to be driven by at least one of the front wheel 131 and the rear wheel 132, thereby enabling the movement of the all-terrain vehicle 100. The reducer 161 is also at least partially disposed between the drive motor 141 and the range extender 142, thereby improving the structural compactness of the power assembly 14 and the transmission assembly 16.

[0046] Specifically, a clearance portion 1511a is formed on the upper side of the power battery 15. The clearance portion 1511a is used to avoid the drive shaft 162, and the clearance portion 1511a extends substantially along the extension direction of the drive shaft 162. The drive shaft 162 extends substantially along the length direction of the all-terrain vehicle 100. This arrangement allows the power battery 15 to be positioned below the drive shaft 162 without interfering with it, thus facilitating the normal operation of both the power battery 15 and the drive shaft 162 and improving their operational stability. Furthermore, the clearance portion 1511a reduces the distance between the power battery 15 and the drive shaft 162, making their structure more compact and thus improving the overall structural compactness of the all-terrain vehicle 100.

[0047] In this embodiment, the power battery 15 has an upper surface 1511b that is substantially perpendicular to the height direction of the all-terrain vehicle 100. The upper surface 1511b is recessed and forms a relief portion 1511a. The acute angle α formed by the upper surface 1511b and the axis of the drive shaft 162 is set to be greater than or equal to 1° and less than or equal to 5°. Specifically, the acute angle α can be set to be greater than or equal to 2° and less than or equal to 3.5°. More specifically, the acute angle α can also be set to 2.5°. With the above settings, it is possible to prevent the acute angle α from being set too small, which would affect the passability of the all-terrain vehicle 100, and to prevent the acute angle α from being set too large, which would make the height of the seat assembly 17 too high and reduce the comfort of the user, thereby improving the comfort of the all-terrain vehicle 100. In addition, the two ends of the drive shaft 162 are connected to the front axle and the rear axle. The front axle and the rear axle are at basically the same height on the all-terrain vehicle 100. Through the above arrangement, it is also possible to prevent the connection between the drive shaft 162 and the front axle and the drive shaft 162 and the rear axle from breaking due to an excessively large acute angle α. This can improve the service life and working stability of the transmission assembly 16, and thus improve the safety of the all-terrain vehicle 100.

[0048] In one implementation, the power battery 15 includes a battery housing 151 and battery modules 152 disposed within the battery housing 151. This arrangement allows all battery modules 152 that meet the assembly requirements of the battery housing 151 to be housed within it, providing energy to the all-terrain vehicle 100. This improves the versatility of the battery housing 151 and enables the modularity of the power battery 15. Specifically, along the width direction of the all-terrain vehicle 100, the battery modules 152 are distributed on both sides of the clearance portion 1511a. This allows for a more even load distribution of the power battery 15 on both sides of the clearance portion 1511a, improving the overall balance of the all-terrain vehicle 100 and thus enhancing its driving stability. Furthermore, the battery housing 151 protects the battery modules 152, preventing damage and potential safety hazards, thereby improving the safety of the all-terrain vehicle 100.

[0049] In this embodiment, the battery housing 151 includes a detachably connected upper cover 1511 and a bottom cover 1512, which facilitates the disassembly and assembly of the battery module 152. This allows the power battery 15 to select different battery modules 152 according to specific vehicle types, improving the versatility and modularity of the power battery 15. Specifically, the clearance portion 1511a is provided on the upper cover 1511, requiring only the upper cover 1511 of the battery housing 151 to be processed. This reduces the processing difficulty of the battery housing 151, improves processing efficiency, and prevents interference between the clearance portion 1511a and the battery module 152, thus promoting the normal operation of the battery module 152.

[0050] In one implementation, the power battery 15 also includes a battery management module 153, which is electrically connected to the battery module 152 and is housed within the battery casing 151. The battery management module 153 controls the charging and discharging of the battery module 152. This configuration reduces the wiring cost between the battery management module 153 and the battery module 152, and the battery casing 151 also provides protection for the battery management module 153.

[0051] In this embodiment, the battery management module 153 is disposed on the front side of the battery module 152, and a plurality of plugs 154 connected to the battery management module 153 are also disposed on the front side of the battery housing 151. With the above arrangement, the battery management module 153 can be connected to the external electrical components of the power battery 15 through the plugs 154 disposed on the front side of the battery housing 151, and the wiring harness length between the battery management module 153 and the plugs 154 can be reduced, thereby reducing the wiring harness cost.

[0052] like Figure 4 and Figure 7As shown, in one implementation, the all-terrain vehicle 100 includes an electrical assembly 22 and a fuel assembly 23, both of which are at least partially mounted on the frame 11. The electrical assembly 22 includes a charging port 221 and a wiring harness 222. The charging port 221 supplies power to the power battery 15, and the wiring harness 222 connects the power battery 15 and the charging port 221. The fuel assembly 23 includes a fuel tank 231, a filler neck 232, and a fuel line 233. The fuel tank 231 is connected to the range extender 142, and the filler neck 232 is connected to the fuel tank 231 via the fuel line 233. In other words, the fuel line 233 connects the filler neck 232 and the fuel tank 231, enabling the fuel tank 231 to supply fuel to the range extender 142. In this embodiment, the fuel filler port 232 and the charging port 221 are distributed on both sides of the width direction of the all-terrain vehicle 100, so that the fuel filler port 232 and the charging port 221 can be set independently of each other, so as to maximize the interval between the fuel filler port 232 and the charging port 221. This can avoid the safety hazards caused by the insufficient interval between the fuel line 233 and the wiring harness mechanism 222, and improve the safety of the all-terrain vehicle 100.

[0053] In this embodiment, the minimum distance D1 between the wiring harness mechanism 222 and the fuel line 233 is set to be greater than or equal to 260 mm and less than or equal to 500 mm. Specifically, the minimum distance D1 between the wiring harness mechanism 222 and the fuel line 233 is set to be greater than or equal to 320 mm and less than or equal to 440 mm. More specifically, the minimum distance D1 between the wiring harness mechanism 222 and the fuel line 233 is set to 380 mm. This setting prevents both excessively long distances between the wiring harness mechanism 222 and the fuel line 233, thus avoiding high wiring harness costs, and prevents excessively short distances between the wiring harness mechanism 222 and the fuel line 233, which could lead to the high-voltage current in the wiring harness mechanism 222 igniting the fuel in the fuel line 233, thereby improving the safety of the all-terrain vehicle 100.

[0054] As one implementation, the charging port 221 extends substantially along the direction of the first preset straight line 2211, defining a reference plane 101 perpendicular to the height direction of the all-terrain vehicle 100. The acute angle β formed by the first preset straight line 2211 and the reference plane 101 is set to be greater than or equal to 20° and less than or equal to 40°. Specifically, the acute angle β formed by the first preset straight line 2211 and the reference plane 101 can be set to be greater than or equal to 25° and less than or equal to 35°. More specifically, the acute angle β formed by the first preset straight line 2211 and the reference plane 101 can also be set to 30°. The above settings can prevent the acute angle β formed by the first preset straight line 2211 and the reference plane 101 from being too large, which would be detrimental to the assembly between the charging gun and the charging port 221; and can also prevent the acute angle β formed by the first preset straight line 2211 and the reference plane 101 from being too small, which would cause the charging gun to easily fall off during the charging process. Thus, while improving the assembly stability between the charging gun and the charging port 221, the angle of the charging port 221 can be made convenient for the user to operate the charging gun in and out of the charging port 221, which is conducive to improving the human-machine interaction of the all-terrain vehicle 100.

[0055] In this embodiment, the refueling nozzle 232 extends substantially along the direction of the second preset straight line 2321, and the acute angle γ formed by the second preset straight line 2321 and the reference surface 101 is set to be greater than or equal to 20° and less than or equal to 40°. Specifically, the acute angle γ formed by the second preset straight line 2321 and the reference surface 101 is set to be greater than or equal to 25° and less than or equal to 35°. More specifically, the acute angle γ formed by the second preset straight line 2321 and the reference surface 101 can also be set to 30°. Through the above settings, it is possible to prevent the acute angle γ formed by the second preset straight line 2321 and the reference surface 101 from being too large, which would be detrimental to the assembly between the refueling nozzle and the refueling nozzle 232; it is also possible to prevent the acute angle γ formed by the second preset straight line 2321 and the reference surface 101 from being set too small, which would cause the refueling nozzle to easily fall off during the refueling process. Thus, while improving the assembly stability between the refueling nozzle and the refueling nozzle 232, the angle of the refueling nozzle 232 is also made easier for the user to operate the refueling nozzle in and out of the refueling nozzle 232, which is beneficial to improving the human-machine interaction of the all-terrain vehicle 100.

[0056] As one implementation, the charging port 221 is located near the drive motor 141, and the fuel filler port 232 is located near the range extender 142. This reduces the cost of the wiring harness 222 and the wiring harness between the charging port 221 and the power battery 15, as well as the length of the fuel line 233 and the length of the line between the fuel tank 231 and the range extender 142. This, in turn, improves the space utilization and structural compactness of the electrical components 22 and the fuel components 23.

[0057] As one implementation, electrical component 22 also includes a controller assembly 223, which is connected to charging port 221 and power battery 15. The controller assembly 223 converts the AC power output from the charging gun into DC power, thereby charging the power battery 15. The controller assembly 223 can be configured as a CDU (Conversion & Distribution Unit) module, and includes at least a transformer and a charger. Furthermore, the controller assembly 223 can also convert the high-voltage DC power output from the power battery 15 into low-voltage DC power, thereby powering the equipment on the all-terrain vehicle 100.

[0058] In this embodiment, the controller assembly 223 is at least partially disposed on the upper side of the drive motor 141, thereby allowing the controller assembly 223 to be disposed close to the charging port 221. This helps to reduce the length of the wiring harness connecting the controller assembly 223 to the charging port 221 and the power battery 15, thereby reducing the production cost of the all-terrain vehicle 100.

[0059] As one implementation, the all-terrain vehicle 100 also includes a seat assembly 17, which, along with the drive motor 141 and range extender 142, forms a storage space for accommodating the fuel tank 231. It should be noted that when the all-terrain vehicle 100 is configured as an electric vehicle, the storage space can also serve as storage space for the all-terrain vehicle 100, or it can serve as an extension space for the power battery 15, increasing the battery capacity of the power battery 15 and thus improving the range of the all-terrain vehicle 100.

[0060] In this embodiment, the fuel tank 231 is located at the rear of the seat assembly 17, and the fuel tank 231 and the range extender 142 are also distributed along the width direction of the all-terrain vehicle 100. Specifically, the power battery 15 is located at the front of the drive motor 141, and the fuel tank 231 is at least partially located between the drive motor 141 and the power battery 15. This arrangement reduces the length of the piping between the fuel tank 231 and the range extender 142, improving the structural compactness of the fuel assembly 23, and also fully utilizes the space between the drive motor 141 and the power battery 15, improving the space utilization rate of the all-terrain vehicle 100 and enhancing its structural compactness.

[0061] like Figure 8 As shown, as one implementation, the seat assembly 17 is provided with an access port 1721, which is located near the fuel tank 231, so that the fuel assembly 23 can be easily repaired through the access port 1721 in case of a malfunction.

[0062] like Figure 8 and Figure 9As shown, in one implementation, electrical component 22 also includes a generator controller 224, which is connected to the range extender 142 and also to the power battery 15. The generator controller 224 is used to start the range extender 142 and charge the power battery 15. The generator controller 224 is also connected to the drive motor 141, obtaining electrical energy from the range extender 142 and using this energy to control the operation of the drive motor 141.

[0063] Specifically, the generator controller 224 is at least partially disposed on the front side of the range extender 142, between the range extender 142 and the power battery 15, and when viewed along the length of the all-terrain vehicle 100, the generator controller 224 and the range extender 142 at least partially overlap. Optionally, the generator controller 224 is at least partially disposed above the power battery 15, thereby shortening the length of the wiring harness 222 required to connect the range extender 142 and the power battery 15, thereby reducing the cost of the wiring harness 222.

[0064] As one implementation, a reference plane 101 perpendicular to the height direction of the all-terrain vehicle 100 is defined. The projection of the generator controller 224 onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is the first projection plane. The projection of the axle of the front wheel 131 onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is the projection line. The projection of the rear seat 172 onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is the second projection plane. The minimum interval between the foremost point of the first projection plane and the projection line distributed along the length direction of the all-terrain vehicle 100 is defined as the first interval L6. The minimum interval between the foremost point of the second projection plane and the projection line distributed along the length direction of the all-terrain vehicle 100 is defined as the second interval L7. The ratio between the first interval L6 and the second interval L7 is greater than or equal to 0.88 and less than or equal to 1.32. Specifically, the ratio between the first interval L6 and the second interval L7 is greater than or equal to 0.99 and less than or equal to 1.21. More preferably, the ratio between the first interval L6 and the second interval L7 can also be 1.1. The above arrangement prevents the generator controller 224 from being positioned too far forward and interfering with the power battery 15. Since the range extender 142 is located behind the generator controller 224, this arrangement keeps the generator controller 224 away from heat sources, thereby reducing the possibility of thermal failure of the generator controller 224. In addition, it improves the ease of maintenance of the generator controller 224.

[0065] As an optional implementation, the projection of the range extender 142 onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is a third projection plane. The minimum interval D2 between the rearmost end of the first projection plane and the frontmost end of the third projection plane is set to be greater than or equal to 192.8 mm and less than or equal to 289.2 mm. Specifically, the minimum interval D2 between the rearmost end of the first projection plane and the frontmost end of the third projection plane is set to be greater than or equal to 216.9 mm and less than or equal to 265.1 mm. More preferably, the minimum interval D2 between the rearmost end of the first projection plane and the frontmost end of the third projection plane is set to 241 mm. Since the range extender 142 provides energy to the all-terrain vehicle 100 by generating electricity from fuel, the range extender 142 generates a large amount of heat during the power generation process. The above arrangement can keep the generator controller 224 as far away from the heat source as possible, avoiding damage to the generator controller 224. In addition, since the power battery 15 occupies a large space, the above arrangement can also avoid interference between the generator controller 224 and the power battery 15 during arrangement.

[0066] Furthermore, viewed from the height of the all-terrain vehicle 100, the rear seat 172 and the generator controller 224 at least partially overlap. The rear seat 172 also includes a seat cushion 1722, which is at least partially positioned above the generator controller 224 and is detachably mounted on the frame 11, thereby improving the maintainability of the generator controller 224.

[0067] Specifically, the range extender 142 includes a generator 1422, and the generator 1422 is located on the side of the range extender 142 facing the generator controller 224, thereby shortening the length of the wiring harness mechanism 222 between the generator 1422 and the generator controller 224, and thus reducing the production cost of the all-terrain vehicle 100.

[0068] like Figure 8 and Figure 10 As shown, as an optional implementation, the generator controller 224 also includes an interface component 2241, which is used to connect the wiring harness mechanism 222. As mentioned above, the generator controller 224 needs to connect the range extender 142, the power battery 15, and the drive motor 141, etc. To avoid the wiring harness mechanism 222 being arranged too messily, the interface component 2241 is set to face the rear of the all-terrain vehicle 100, that is, the interface component 2241 is set towards the direction of the range extender 142, thereby shortening the length of the wiring harness mechanism 222 and reducing the production cost of the vehicle.

[0069] like Figure 11As shown, electrical component 22 also includes motor controller 225, which controls the movement of drive motor 141. Since drive motor 141 and motor controller 225 have certain environmental requirements, to avoid thermal failure of components such as drive motor 141 and motor controller 225, this application makes the following improvements to exhaust component 21.

[0070] In one implementation, the exhaust assembly 21 is connected to the range extender 142. The exhaust assembly 21 includes an exhaust pipe 211 and a muffler 212 located at the rear end of the all-terrain vehicle 100. The two ends of the exhaust pipe 211 are connected to the muffler 212 and the exhaust duct 1423 of the range extender 142, respectively. The opening of the exhaust duct 1423 is located on the side away from the drive motor 141. In this embodiment, the opening of the exhaust duct 1423 faces the left side of the all-terrain vehicle 100, thereby preventing the exhaust pipe 211 from extending towards the drive motor 141 and avoiding excessive heat from the exhaust pipe 211 affecting the operation of the drive motor 141 and other components such as the motor controller 225. In particular, it keeps the exhaust assembly 21 away from the wiring harness mechanism 222, improving the safety of the all-terrain vehicle 100.

[0071] Since the exhaust pipe 211 extends substantially along the length of the all-terrain vehicle 100 and passes through the enclosure 1111 formed by the rear frame 111, it needs to be positioned away from the drive motor 141, motor controller 225, and controller assembly 223 to prevent the exhaust pipe 211 from overheating and affecting these components. Specifically, the exhaust pipe 211 is located on the side of the range extender 132 away from the drive motor 141, and it also extends towards the rear of the all-terrain vehicle 100.

[0072] As one implementation, the exhaust pipe 211 is at least partially mounted on the rear frame 111. A reference plane 101 perpendicular to the height direction of the all-terrain vehicle 100 is defined. The projection of the exhaust pipe 211 onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is defined as a first projection plane, and the projection of the rear frame 111 onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is defined as a second projection plane. The maximum interval between the first and second projection planes along the width direction of the all-terrain vehicle 100 is defined as a first width W1, and the width of the second projection plane along the width direction of the all-terrain vehicle 100 is defined as a second width W2. The ratio between the first width W1 and the second width W2 is greater than or equal to 0.1 and less than or equal to 0.3. Specifically, the ratio between the first width W1 and the second width W2 is greater than or equal to 0.12 and less than or equal to 0.27. More preferably, the ratio between the first width W1 and the second width W2 is greater than or equal to 0.14 and less than or equal to 0.24. The above-mentioned arrangement avoids the exhaust pipe 211 from being exposed due to an excessively small gap between it and the rear frame 111 along the width direction of the all-terrain vehicle 100, or prevents interference between the exhaust pipe 211 and the rear frame 111 during the arrangement process. Furthermore, the above-mentioned arrangement avoids the exhaust pipe 211 being too close to components such as the drive motor 141 and the motor controller 225, which could affect the performance of the drive motor 141. Through these arrangements, a better working environment is provided for components such as the drive motor 141 and the motor controller 225, thereby improving the rationality of the exhaust pipe 211's arrangement.

[0073] As one implementation, the all-terrain vehicle 100 also includes a heat insulation component 28, which is at least partially disposed between the muffler 212 and the motor controller 225, thereby preventing the motor controller 225 from thermally failing due to the high temperature of the muffler 212.

[0074] Specifically, the heat insulation component 28 is at least partially arranged around the outer peripheral surface of the muffler 212, and the heat insulation component 28 is fixedly connected to the muffler 212, thereby optimizing the working environment of the drive motor 141 and improving the performance of the drive motor 141. Optionally, the heat insulation component 28 and the muffler 212 are fixed by a group assembly method and connected to the rear frame 111, thereby improving the assembly efficiency of the exhaust component 21.

[0075] Optionally, the thermal insulation component 28 is also at least partially disposed around the drive motor 141, the motor controller 225, and / or the controller assembly 223, thereby optimizing the working environment of the aforementioned components and thus improving their performance.

[0076] More specifically, in order to improve the working performance of the drive motor 141, the minimum distance between the drive motor 141 and the muffler 212 is set to be greater than or equal to 100mm, thereby improving the working performance of the drive motor 141.

[0077] As one implementation, viewed from the width direction of the all-terrain vehicle 100, the range extender 142 and the drive motor 141 at least partially overlap. The projection of the range extender 142 along the width direction of the all-terrain vehicle 100 onto the longitudinal plane 102 is defined as the range extender's lateral projection, and the projection of the drive motor 141 along the width direction of the all-terrain vehicle 100 onto the longitudinal plane 102 is defined as the drive motor's lateral projection. The area of ​​the overlapping portion of the range extender's lateral projection and the drive motor's lateral projection is set to be greater than or equal to 402 cm². 2 And less than or equal to 605cm 2 Specifically, the area of ​​the overlapping portion of the lateral projection of the range extender and the lateral projection of the drive motor is set to be greater than or equal to 453 cm². 2 And less than or equal to 554cm 2 More preferably, the area of ​​the overlapping portion of the lateral projection of the range extender and the lateral projection of the drive motor is set to 503 cm². 2 Since the range extender 142 has virtually no room to move along the length of the all-terrain vehicle 100, if the overlapping area is too small, the drive motor 141 will be positioned too far to the rear of the all-terrain vehicle 100, resulting in the drive motor 141 and the muffler 212 being too close together. This would cause high temperatures to affect the drive motor 141 and the wiring harness 222. If the overlapping area is too large, it will cause interference between the drive motor 141 and the range extender 142 during arrangement. The above arrangement ensures a compact arrangement of the drive motor 141 and the range extender 142 while eliminating the impact of high temperatures on the drive motor 141, thus improving its performance.

[0078] like Figure 12 and Figure 13 As shown, in one implementation, the motor controller 225 includes a first interface 2251 for connecting the wiring harness mechanism 222. The number of first interfaces 2251 is set to several, and the first interfaces 2251 are located on the left and / or right side of the motor controller 225. The minimum distance Q1 between the first interface 2251 and the muffler 212 is set to be greater than or equal to 100mm, thereby keeping the wiring harness mechanism 222 away from heat sources and improving the safety of the all-terrain vehicle 100.

[0079] Furthermore, the controller assembly 223 is positioned above the motor controller 225 and connected to the motor controller 225 via a wiring harness mechanism 222. The controller assembly 223 includes several second interfaces 2231, all of which are positioned facing the left and / or right side of the all-terrain vehicle 100, i.e., the second interfaces 2231 are aligned with the first interface 2251. This facilitates the arrangement of the wiring harness mechanism 222 between the controller assembly 223 and the motor controller 225, thereby reducing the length of the wiring harness mechanism 222 between the controller assembly 223 and the motor controller 225, improving the structural compactness of the components, and reducing the production cost of the all-terrain vehicle 100. The minimum distance Q2 between the second interface 2231 and the muffler 212 is also set to be greater than or equal to 100mm to keep the wiring harness mechanism 222 away from heat sources, thereby extending the service life of the wiring harness mechanism 222.

[0080] Optionally, the second interface 2231 is positioned facing the rear of the all-terrain vehicle 100, and the minimum distance Q2 between the second interface 2231 and the muffler 212 is set to be greater than or equal to 200mm. Since the wiring harness mechanism 222 has a certain degree of flexibility, and even after being fixed, it may deviate from its preset fixed position, when the wiring harness mechanism 222 is connected to the second interface 2231, at least a portion of the wiring harness mechanism 222 will extend towards the muffler 212. This arrangement allows for a certain amount of space between the second interface 2231 and the muffler 212 for the wiring harness mechanism 222 to bend, preventing damage to the wiring harness mechanism 222 due to the high temperature of the muffler 212, thereby ensuring the safety of the all-terrain vehicle 100.

[0081] As one implementation, the spacing D3 between the first interface 2251 and the second interface 2231 along the length of the all-terrain vehicle 100 is set to be greater than or equal to 64 mm and less than or equal to 96 mm. Specifically, the spacing D3 between the first interface 2251 and the second interface 2231 along the length is set to be greater than or equal to 72 mm and less than or equal to 88 mm. More preferably, the spacing D3 between the first interface 2251 and the second interface 2231 along the length is set to 80 mm. Since a wiring harness connects the controller assembly 223 and the motor controller 225, the above arrangement can shorten the length of the wiring harness mechanism 222, thereby reducing the production cost of the all-terrain vehicle 100.

[0082] Furthermore, viewed from the height of the all-terrain vehicle 100, the controller assembly 223 and the motor controller 225 at least partially overlap. This shortens the length of the wiring harness 222 between the controller assembly 223 and the motor controller 225.

[0083] The lowest point of the walking component 13 is substantially located on the reference plane 101. As one implementation, the distance H2 between the lowest point of the controller assembly 223 and the reference plane 101 is set to be greater than or equal to 770 mm and less than or equal to 940 mm. Specifically, the distance H2 between the lowest point of the controller assembly 223 and the reference plane 101 is set to be greater than or equal to 810 mm and less than or equal to 900 mm. More preferably, the distance H2 between the lowest point of the controller assembly 223 and the reference plane 101 is set to be equal to 855 mm. This improves the wading performance of the controller assembly 223 and also prevents the controller assembly 223 from being too high and interfering with the cargo box assembly 18.

[0084] Specifically, the controller assembly 223 is fixedly connected to the rear frame 111. A mounting gap Q3 exists between the controller assembly 223 and the motor controller 225, which increases the ground clearance of the controller assembly 223. The rear frame 111 also extends at least partially through the mounting gap Q3. Along the height direction of the all-terrain vehicle 100, both end faces of the controller assembly 223 are fixedly connected to the rear frame 111, thereby improving the stability of the controller assembly 223. As an optional implementation, the mounting gap Q3 is set to be greater than or equal to 48 mm and less than or equal to 72 mm. Alternatively, the mounting gap Q3 is set to be greater than or equal to 54 mm and less than or equal to 54 mm. More preferably, the mounting gap Q3 is set to be equal to 60 mm. This avoids interference between the controller assembly 223 and the cargo box assembly 18 due to an excessively large mounting gap Q3, and if the mounting gap Q3 is too small, it is impossible to install the rear frame 111 for fixing below the controller assembly 223. The above settings not only ensure the stability of the controller assembly 223, but also improve the waterproofness of the controller assembly 223.

[0085] In one implementation, the range extender 142 and the drive motor 141 are arranged along the width direction of the all-terrain vehicle 100, while the motor controller 225 and the drive motor 141 are distributed along the height direction of the all-terrain vehicle 100. Specifically, the motor controller 225 is positioned above the drive motor 141. This arrangement ensures a uniform load distribution on the all-terrain vehicle 100, improving its overall balance. Furthermore, positioning the motor controller 225 above the drive motor 141 facilitates its inspection and maintenance.

[0086] Furthermore, the transmission assembly 16 also includes a reducer 161 and a drive shaft 162. The reducer 161 is disposed on the side of the drive motor 141 near the range extender 142. In this application, the range extender 142 is disposed on the left side of the drive motor 141, and the reducer 161 is disposed between the drive motor 141 and the range extender 142, so that the reducer 161 is connected to the drive shaft 162 for transmission. With the above arrangement, the connecting parts between the reducer 161 and the drive shaft 162 can be reduced, thereby improving the compactness of the transmission assembly 16.

[0087] like Figure 11 As shown, specifically, the drive motor 141, motor controller 225, and reducer 16 are integrated and constitute a drive assembly. The drive assembly is at least partially mounted on the rear frame 111. A reference plane 101 perpendicular to the height direction of the all-terrain vehicle 100 is defined. The projection of the drive assembly along the height direction of the all-terrain vehicle 100 onto the reference plane 101 is the first projection plane, and the projection of the rear frame 111 along the height direction of the all-terrain vehicle 100 onto the reference plane 101 is the second projection plane. The width of the first projection plane extending along the width direction of the all-terrain vehicle 100 is defined as the first width W3, and the width of the second projection plane extending along the width direction of the all-terrain vehicle 100 is defined as the second width W2. As an optional implementation, the ratio of the first width W3 to the second width W2 is greater than or equal to 0.36 and less than or equal to 0.54. Further, the ratio of the first width W3 to the second width W2 is greater than or equal to 0.4 and less than or equal to 0.5. Preferably, the ratio of the first width W3 to the second width W2 is greater than or equal to 0.43 and less than or equal to 0.47. If the ratio of the first width W3 to the second width W2 is too large, the width of the drive assembly extending along the width direction of the all-terrain vehicle 100 will be too large, resulting in excessive space occupied by the drive assembly on the frame 11, making it easy for the drive assembly to interfere with other components on the frame 11. This design reduces the space occupied by the drive assembly and improves the overall compactness of the vehicle.

[0088] More specifically, along the width direction of the all-terrain vehicle 100, the center of gravity of the drive assembly and the center of gravity of the range extender 142 are respectively located on both sides of the drive shaft 162. This arrangement ensures a uniform load distribution along the width direction of the all-terrain vehicle 100, improving its overall balance.

[0089] Optionally, the range extender 142 is at least partially positioned in front of the drive assembly, and when viewed along the length of the all-terrain vehicle 100, the drive assembly and the range extender 142 at least partially overlap. Since the range extender 142 and the drive motor 141 are arranged substantially along the width of the all-terrain vehicle 100, this arrangement brings the center of gravity of both the range extender 142 and the drive assembly closer to the center of the all-terrain vehicle 100. This ensures that the center of gravity of the all-terrain vehicle 100 is centered while also preventing interference between the all-terrain vehicle 100 and components on either side, thus improving the overall compactness of the vehicle.

[0090] In this embodiment, the all-terrain vehicle 100 also includes a fuel tank 231, which is located on the right side of the range extender 142, and the fuel tank 231 and the drive assembly are arranged along the length of the all-terrain vehicle 100. This arrangement ensures a uniform load distribution in both the length and width directions of the all-terrain vehicle 100, improving its overall balance.

[0091] In one implementation, a rear-mounted frame 111 surrounds a receiving space 1111, within which the drive assembly is disposed. A reference plane 101 perpendicular to the height direction of the all-terrain vehicle 100 is defined. The projection of the receiving space 1111 onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is defined as a first projection plane, and the projection of the drive assembly onto the reference plane 101 along the height direction of the all-terrain vehicle 100 is defined as a second projection plane. The ratio between the area of ​​the first projection plane and the area of ​​the second projection plane is greater than or equal to 4 and less than or equal to 6. Further, the ratio between the area of ​​the first projection plane and the area of ​​the second projection plane is greater than or equal to 4.5 and less than or equal to 5.5. More preferably, the ratio between the area of ​​the first projection plane and the area of ​​the second projection plane can also be 5. It should be noted that if the ratio between the area of ​​the first projection plane and the area of ​​the second projection plane is too large, the space occupied by the drive assembly will be too large, which may easily lead to interference with other components on the frame 11. Through the above arrangement, the space occupied by the drive assembly is reduced, and the overall compactness of the vehicle is improved.

[0092] As one implementation, the width of the range extender 142 and the drive assembly extending along the width direction of the all-terrain vehicle 100 is defined as the third width W4. The ratio between the third width W4 and the second width W2 is greater than or equal to 0.53 and less than or equal to 0.8. Further, the ratio between the third width W4 and the second width W2 is greater than or equal to 0.6 and less than or equal to 0.73. More preferably, the ratio between the third width W4 and the second width W2 is greater than or equal to 0.63 and less than or equal to 0.69. If the ratio between the third width W4 and the second width W2 is too large, the width of the range extender 142 and the drive assembly extending along the width direction of the all-terrain vehicle 100 will be too large, resulting in excessive space occupied by the range extender 142 and the drive assembly, which may easily interfere with other components on the frame 11. Through the above arrangement, the space occupied by the range extender 142 and the drive assembly is reduced, and the compactness of the entire vehicle is improved.

[0093] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An all-terrain vehicle, comprising: Frame; A body panel, said body panel being at least partially disposed on the vehicle frame; A running gear assembly disposed under the vehicle frame and including a front wheel and a rear wheel; A seat assembly, which is at least partially disposed on the vehicle frame; A powertrain assembly supported by the vehicle frame and including a range extender and a drive motor, the range extender providing power to the drive motor, the drive motor being used to drive at least one of the front wheels and the rear wheels; A power battery, which is electrically connected to the range extender and the drive motor; Its features are, The vehicle frame includes a mid-mounted frame disposed between the front and rear wheels, the mid-mounted frame forming an accommodating space, the power battery being at least partially disposed within the accommodating space, the power battery also being disposed below the seat assembly, the length of the power battery along the length direction of the all-terrain vehicle being greater than the length of one row of seats along the length direction of the all-terrain vehicle, a reference plane perpendicular to the height direction of the all-terrain vehicle is defined, the projection of the power battery along the height direction onto the reference plane is a first projection plane, the seat assembly includes a front seat and a rear seat disposed behind the front seat, the rear seat including a seat cushion, the ratio of the area of ​​the seat cushion projected along the height direction onto the first projection plane to the area of ​​the first projection plane being greater than or equal to 0.1 and less than or equal to 0.18; the all-terrain vehicle also includes a generator controller, the generator controller being located in the space below the seat cushion and behind the power battery.

2. The all-terrain vehicle according to claim 1, characterized in that, The projection of the seat assembly onto the first projection surface along the height direction is a second projection surface, and the ratio of the area of ​​the second projection surface to the area of ​​the first projection surface is greater than or equal to 0.34 and less than or equal to 0.

65.

3. The all-terrain vehicle according to claim 2, characterized in that, The front seat includes a front seat cushion, and the projection of the front seat cushion onto the first projection surface along the height direction is a third projection surface. The ratio of the area of ​​the third projection surface to the area of ​​the first projection surface is greater than or equal to 0.24 and less than or equal to 0.

47.

4. The all-terrain vehicle according to claim 1, characterized in that, The lowest points of both the front wheel and the rear wheel are basically located on the reference surface, and the minimum distance between the power battery and the reference surface is set to be greater than or equal to 220mm and less than or equal to 420mm.

5. The all-terrain vehicle according to claim 1, characterized in that, The length of the power battery along the length direction of the all-terrain vehicle is defined as the battery length. The projection of the axle of the front wheel along the height direction onto the reference plane is defined as the first projection line. The projection of the axle of the rear wheel along the height direction onto the reference plane is defined as the second projection line. The distance between the first projection line and the second projection line along the length direction is defined as the wheel axle distance. The ratio of the battery length to the wheel axle distance is greater than or equal to 0.17 and less than or equal to 0.

34.

6. The all-terrain vehicle according to claim 5, characterized in that, The distance between the foremost point of the first projection surface and the first projection line along the length direction is set as the first distance, and the distance between the rearmost point of the first projection surface and the second projection line along the length direction is set as the second distance. The ratio of the first distance to the second distance is greater than or equal to 0.61 and less than or equal to 1.

14.

7. The all-terrain vehicle according to claim 1, characterized in that, The vehicle body panel includes a protective plate structure disposed on the lower side of the power battery. The protective plate structure is connected to the mid-mounted frame and forms a heat dissipation space. The power battery is at least partially disposed in the heat dissipation space, which is also connected to the outside.

8. The all-terrain vehicle according to claim 1, characterized in that, The lower side of the mid-mounted vehicle frame is provided with several connection points, through which the power battery is fixedly connected to the mid-mounted vehicle frame; the lower side of the mid-mounted vehicle frame is also provided with positioning points for limiting the relative position between the mid-mounted vehicle frame and the power battery. After the mid-mounted vehicle frame and the power battery are positioned by the positioning points, the power battery is fixedly connected to the mid-mounted vehicle frame through the connection points.

9. The all-terrain vehicle according to claim 1, characterized in that, The bottom of the power battery is located on the lower side of the bottom of the mid-mounted frame.