Electric all-terrain vehicle

Abstract

The electric all-terrain vehicle comprises a vehicle frame, a vehicle body covering part, a power system and an electrical system, and the vehicle frame comprises a front vehicle frame body and a rear vehicle frame body; the power system is used for driving the front wheels and / or the rear wheels; the electrical system comprises a high-voltage electrical system, and the high-voltage electrical system comprises a plurality of high-voltage devices of which the rated voltage is greater than 36V; the rear frame is provided with a high-pressure installation area, a cross rod is installed in the high-pressure installation area, the left end and the right end of the cross rod are connected to the left side and the right side of the rear frame respectively, and the cross rod is basically arranged in front of the power system. At least two high-voltage devices are arranged in the high-voltage installation area, one high-voltage device is a power battery, the power battery is basically located in front of the transverse rod, and at least one high-voltage device except the power battery is installed on the transverse rod. Through the arrangement, the power battery and the high-voltage device can be reasonably arranged.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, and more particularly to an electric all-terrain vehicle. Background Technology

[0002] With the improvement of people's living standards and the diversification of leisure activities, electric all-terrain vehicles, as outdoor vehicles that integrate practicality, entertainment, and sports functions, are becoming increasingly popular among consumers. Depending on the drive system, electric all-terrain vehicles are also divided into fuel-powered electric all-terrain vehicles and electric all-terrain vehicles.

[0003] An electric all-terrain vehicle includes a frame, body panels, a running gear system, an electrical system, a power system, and a cabin. The frame includes a front frame and a rear frame, with the front frame located at the front of the vehicle and the rear frame located at the body and rear of the vehicle. The cabin is mounted on the rear frame. The body panels at least partially cover the frame. The running gear system includes front and rear wheels. The electrical system includes a high-voltage electrical system and a low-voltage electrical system. The high-voltage electrical system includes a power battery and other high-voltage components with a rated operating low voltage higher than 36V. The power system includes a motor, and the power battery provides power to the motor, which drives the front and / or rear wheels.

[0004] The following problems exist with electric all-terrain vehicles: The space inside an electric all-terrain vehicle is limited. Since the power battery and the high-voltage devices connected to the power battery need to occupy a large amount of space inside the electric all-terrain vehicle, how to arrange the power battery and high-voltage devices in a more reasonable way is an urgent problem to be solved. Summary of the Invention

[0005] In view of this, it is necessary to provide an electric all-terrain vehicle in which the power battery and high-voltage devices can be reasonably arranged.

[0006] Embodiments of this application provide an electric all-terrain vehicle, comprising a frame, body panels, a running gear system, a suspension system, a power system, and an electrical system. The frame includes a front frame and a rear frame, with the front frame connected to the front side of the rear frame. The body panels at least partially cover the front frame and at least partially cover the rear frame. The running gear system includes front wheels and rear wheels, with the front wheels at least partially located under the front frame and the rear wheels at least partially located under the rear frame. The suspension system includes a front suspension and a rear suspension, with the front suspension connecting the front wheels to the front frame and the rear suspension connecting the rear wheels to the rear frame. The power system is provided by a rear... The frame supports the vehicle and provides power to drive the front and / or rear wheels. The electrical system includes a high-voltage electrical system with multiple high-voltage devices rated at more than 36V. The rear frame has a high-voltage mounting area with a crossbar installed therein. The left and right ends of the crossbar are connected to the left and right sides of the rear frame, respectively. The crossbar is generally positioned in front of the power system. The high-voltage mounting area contains at least two high-voltage devices, one of which is a power battery, which is generally located in front of the crossbar. At least one other high-voltage device, besides the power battery, is mounted on the crossbar.

[0007] Optionally, the rear frame includes two support columns, which are respectively located on the left and right sides of the rear frame and extend in a basically vertical direction; the two ends of the crossbar are respectively fixed to the two support columns; the rear frame also includes a rear support frame and a rear chassis arranged vertically, with the support columns fixedly connecting the rear support frame and the rear chassis, and the crossbar is basically located between the rear support frame and the rear chassis.

[0008] Optionally, the rear frame also includes a mid-chassis and a cabin. Along the longitudinal direction, the mid-chassis is fixed between the front frame and the rear chassis, and the cabin is supported by the mid-chassis; the support column is located at the connection between the mid-chassis and the rear chassis.

[0009] Optionally, the rear chassis includes a connecting section and an extension section arranged in front and behind. The left and right ends of the connecting section are connected to two support columns respectively, and the front end of the extension section is fixed to the connecting section. The middle of the connecting section in the left and right direction is set further back than the two ends, and the middle of the crossbar in the left and right direction is also set further back than the two ends. The crossbar and the connecting section overlap at least partially in the up and down direction.

[0010] Optionally, the rear frame also includes a seat frame located within or at the boundary of the cabin. The seat frame is located above the mid-chassis, and the power battery is located between the seat frame and the mid-chassis. When viewed from above, part of the power battery overlaps with the seat frame, and the other part of the power battery is located behind the seat frame. When viewed from the left and right, part of the power battery is located behind the support column.

[0011] Optionally, the upper surface of the high-voltage device installed on the crossbar is not higher than the upper surface of the rear support frame; the high-voltage device installed on the crossbar includes a three-in-one controller, which includes a DC-DC converter, an on-board charger, and a power distribution unit; a vehicle controller is also installed on the crossbar, and the three-in-one controller and the vehicle controller are arranged along the extension direction of the crossbar.

[0012] Optionally, viewed from top to bottom, the three-in-one controller is basically located at the front right or front left of the power system, and the rear end of the three-in-one controller is located behind the front end of the power system.

[0013] Optionally, the power battery includes a battery pack and a battery bracket, with the battery pack located above the battery bracket and connected to the rear frame via the battery bracket; the upper surface of the crossbar is lower than the upper surface of the battery pack.

[0014] Optionally, the crossbar is positioned further back in the middle than at both ends in the left-right direction; when viewed in the left-right direction, the two ends of the crossbar overlap with the power battery.

[0015] Optionally, the crossbar includes two side segments and a middle segment, with the middle segment connecting the two side segments. The extension direction of the middle segment is basically parallel to the left and right directions. The extension direction of the middle segment is also basically parallel to the rear side of the power battery. High-voltage devices are installed in the middle segment.

[0016] In this application, by providing a crossbar connecting the power battery and the power system on the left and right sides of the rear frame, a flexible installation position can be provided for high-voltage devices other than the power battery, thereby facilitating the connection between the high-voltage devices and the power battery and enabling the power battery and high-voltage devices to be arranged reasonably. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the electric all-terrain vehicle of this application; Figure 2 This is a schematic diagram of the vehicle frame structure for this application; Figure 3 for Figure 2 A top view of the chassis, powertrain, and high-voltage components; Figure 4 for Figure 2 A top view of the vehicle frame; Figure 5 for Figure 3 A structural schematic diagram of the chassis, powertrain, and high-voltage components; Figure 6 for Figure 3 Rear view of the chassis, powertrain, and high-voltage components; Figure 7 for Figure 3 Exploded view of high-voltage components and crossbar; Figure 8for Figure 3 The crossbar structure diagram. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, some embodiments of the present application are described in detail below with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0019] As used herein, the term "or / and" includes any and all combinations of one or more of the related listed items.

[0020] refer to Figure 1 and Figure 2 This application provides an electric all-terrain vehicle 100, which includes a frame 11, body panels 12, a running gear 13, a suspension system 19, and a power system 14 (see...). Figure 3 The vehicle includes a cabin 15 and an electrical system 16. A body panel 12 at least partially covers the frame 11, a running gear 13 is at least partially located below the frame 11 and connected to the frame 11 via a suspension system 19, and a power system 14 is supported by the frame 11 and used to drive the running gear 13. The cabin 15, supported by the frame 11, is for the user to ride in and drive.

[0021] The frame 11 includes a front frame 111 and a rear frame 112. The front frame 111 is located at the front of the vehicle, and the rear frame 112 is located at the body and rear of the vehicle. The cabin 15 is located on the rear frame 112.

[0022] The walking system 13 includes at least two front wheels 131 and at least two rear wheels 132.

[0023] The suspension system 19 includes a front suspension 191 and a rear suspension 192. The front suspension 191 connects the front wheel 131 to the front frame 111, and the rear suspension 192 connects the rear wheel 132 to the rear frame 112.

[0024] refer to Figure 3 The electrical system 16 includes a low-voltage electrical system and a high-voltage electrical system 162. All low-voltage devices in the low-voltage electrical system operate at a voltage not exceeding 36V, while all high-voltage devices 1621 in the high-voltage electrical system 162 operate at a voltage above 36V. The low-voltage devices include headlights 1611n, which are mounted on the front frame 111. The high-voltage devices 1621 include a power battery 1621a, which is supported by the rear frame 112 and used to supply power to the power system 14.

[0025] This application defines as follows: Figure 1The directions shown are front, back, left, right, up, and down. Front-back refers to the forward-backward direction of the electric all-terrain vehicle 100, left-right refers to the left-right direction, and up-down refers to the up-down direction. In this embodiment, front, back, left, right, up, and down are based on the electric all-terrain vehicle 100 traveling on a level surface, not on a sloping surface.

[0026] refer to Figure 2 and Figure 3 The rear frame 112 includes a high-voltage installation area 104, which is supported by the rear frame 112 and is mainly used to centrally house high-voltage devices 1621. The rear frame 112 includes a mid-chassis 1121 and a roll cage 1125. The front end of the mid-chassis 1121 is fixed to the front frame 111, and the roll cage 1125 is fixed above the mid-chassis 1121. The cabin 15 is located within the space enclosed by the mid-chassis 1121 and the roll cage 1125. The rear frame 112 also includes a rear support frame 1122, a rear chassis 1123, and a support column 1124. The rear chassis 1123 is fixed to the rear end of the mid-chassis 1121, the rear support frame 1122 is located above the rear chassis 1123, and the support column 1124 is fixed between the rear support frame 1122 and the rear chassis 1123. The support column 1124 extends basically in the vertical direction. There are two support columns 1124, located on the left and right sides of the rear frame 112 respectively. The support column 1124 is located at the junction of the middle chassis 1121 and the rear chassis 1123. Viewed from above, the main body of the high-voltage installation area 104 is located between the rear support frame 1122 and the rear chassis 1123, and the foremost part of the high-voltage installation area 104 is located in the rear area of ​​the middle chassis 1121.

[0027] refer to Figure 3 and Figure 4 In one embodiment, the electric all-terrain vehicle 100 is a purely electric all-terrain vehicle, meaning that the power system 14 includes only the electric motor 141 as the drive source. In another embodiment, the electric all-terrain vehicle 100 is a hybrid all-terrain vehicle, which also includes a fuel system, which is a range extender and / or an engine (not shown).

[0028] This embodiment takes the pure electric all-terrain vehicle 100 as an example.

[0029] The power system 14 and the power battery 1621a are installed in the high-voltage installation area 104. At least one of the high-voltage devices 1621, excluding the power battery 1621a, is also installed in the high-voltage installation area 104. Because these high-voltage devices 1621 are concentrated in the high-voltage installation area 104, it facilitates centralized management and protection of the high-voltage devices 1621, and reduces electromagnetic interference from the high-voltage devices 1621 to low-voltage devices. Furthermore, the high-voltage devices 1621 in the vehicle are primarily related to the charging and discharging of the power battery 1621a. Therefore, installing most of the high-voltage devices 1621 and the power system 14 near the power battery 1621a not only facilitates centralized maintenance and management of high-voltage related components, but also significantly reduces the length of power supply wires between components, thereby reducing costs and enabling more convenient management of the high-voltage installation area 104, a hazardous area involving high-voltage electricity.

[0030] In one embodiment, the high-voltage device 1621 installed in the high-voltage installation area 104 includes a three-in-one controller 1621e.

[0031] refer to Figure 4 and Figure 5 The frame 11 also includes a crossbar 113 located within the high-voltage mounting area 104. The crossbar 113 is located approximately behind the power battery 1621a and in front of the power system 14, with its two ends fixed to two support columns 1124 respectively. The three-in-one controller 1621e is mounted on the crossbar 113.

[0032] The rear frame 112 also includes a seat frame 1126 located within or at the boundary of the cabin 15. The seat frame 1126 is positioned above the mid-chassis 1121, and the power battery 1621a is located between the seat frame 1126 and the mid-chassis 1121. Viewed from above, a portion of the power battery 1621a overlaps with the seat frame 1126, while the other portion is located behind the seat frame 1126. This arrangement utilizes the space below the seat frame 1126 to house the power battery 1621a, thereby improving the utilization rate of interior space. A portion of the power battery 1621a is located behind the support pillars 1124, specifically behind the line connecting the centerlines of the two support pillars 1124. This arrangement allows the two support pillars 1124 to protect the power battery 1621a in the lateral direction. The middle section of the crossbar 113 is positioned further back than the two ends in the left-right direction, meaning the middle of the crossbar 113 protrudes backward. Viewed from the left-right direction, the two ends of the crossbar 113 overlap with the power battery 1621a. This arrangement, because the crossbar 113 provides support to the rear frame 112 in the left-right direction, enhances the structural stability between the two support columns 1124, allowing the power battery 1621a to be better protected by the two support columns. Furthermore, the backward protrusion of the middle section of the crossbar 113 not only avoids the power battery 1621a but also forms an arch-like structure, providing strong resistance to impact forces from rear to front. In summary, the left, right, and rear sides of the power battery 1621a are all protected, significantly improving its safety.

[0033] The rear chassis 1123 includes a connecting section 1123a and an extension section 1123b arranged front and rear. The left and right ends of the connecting section 1123a are connected to two support columns 1124, respectively, and the front end of the extension section 1123b is fixed to the connecting section 1123a. The middle of the connecting section 1123a is positioned further back than the two ends in the left-right direction; that is, the middle of the connecting section 1123a also protrudes rearward. The shape of the connecting section 1123a is similar to that of the crossbar 113, and when viewed from above, the two at least partially overlap. In one specific embodiment, the connecting section 1123a partially overlaps with the crossbar 113, and the middle of the connecting section 1123a is positioned further back than the middle of the crossbar 113. In another specific embodiment (not shown), the connecting segment 1123a basically coincides with the crossbar 113. Therefore, the magnitude and direction of the lateral support force provided by the connecting segment 1123a and the crossbar 113 to the rear frame 112 are more similar, which helps to stabilize the structure of the rear frame 112.

[0034] The crossbar 113 includes two side segments 1131 and a middle segment 1132. The middle segment 1132 connects the two side segments 1131 and is located behind the side segments 1131. The extension direction of the middle segment 1132 is basically parallel to the left-right direction, and the extension direction of the middle segment 1132 is basically parallel to the rear side of the power battery 1621a. The high-voltage device 1621 is installed on the middle segment 1132. This arrangement allows the rear side of the power battery 1621a to be basically parallel to the middle segment 1132, thus providing a better installation environment for the high-voltage device 1621 and making it easier to electrically connect the high-voltage device 1621a to the power battery 1621a.

[0035] refer to Figure 3 Viewed from top to bottom, the three-in-one controller 1621e is basically located at the front right or front left of the power system 14, and the rear end of the three-in-one controller 1621e is located behind the front end of the power system 14. This arrangement allows the power system 14 and the three-in-one controller 1621e to be offset in the left-right direction. That is, when viewed from the left-right direction, the power system 14 and the three-in-one controller 1621e can partially overlap, and the total length of the power system 14 and the three-in-one controller 1621e in the front-back direction can be reduced, thus making reasonable use of space.

[0036] refer to Figure 5 and Figure 6 The power battery 1621a includes a battery assembly 1621f and a battery bracket 1621g. The battery assembly 1621f is connected to the rear frame 112 via the battery bracket 1621g. Specifically, the battery assembly 1621f is mounted above the battery bracket 1621g, which is fixed to the mid-chassis 1121. A portion of the battery bracket 1621g is also fixed to the rear chassis 1123. The upper surface of the crossbar 113 is lower than the upper surface of the battery assembly 1621f. This design allows the crossbar 113 to better protect the battery assembly 1621f.

[0037] The upper surface of the high-voltage device 1621 installed on the crossbar 113 is not higher than the upper surface of the rear support frame 1122. In one embodiment, since the three-in-one controller 1621e is installed on the upper side of the crossbar 113, the upper surface of the three-in-one controller 1621e is not higher than the upper surface of the rear support frame 1122, and the rear support frame 1122 provides a certain degree of protection for the three-in-one controller 1621e.

[0038] refer to Figure 5 and Figure 7The three-in-one controller 1621e includes a DC-DC converter 1621b, an on-board charger 1621c, and a power distribution unit 1621d. In other embodiments, one, two, or all of the DC-DC converter 1621b, on-board charger 1621c, and power distribution unit 1621d are independently mounted on the crossbar 113. The on-board charger 1621c converts AC to DC power to charge the vehicle; the DC-DC converter 1621b primarily converts high-voltage DC power to low-voltage DC power, for example, a DC / DC converter can be used; and the power distribution unit 1621d is responsible for distributing and managing the high-voltage power.

[0039] A vehicle controller 1611m is also installed on the crossbar 113. The three-in-one controller 1621e and the vehicle controller 1611m are arranged along the extension direction of the crossbar 113. Specifically, the three-in-one controller 1621e and the vehicle controller 1611m are both installed in the middle section 1132.

[0040] refer to Figure 7 and Figure 8 A mounting bracket 1133 is fixed on the middle section 1132, and the high-voltage device 1621 is mounted on the middle section 1132 through the mounting bracket 1133. Specifically, the mounting bracket 1133 includes a first mounting bracket 1134 and a second mounting bracket 1135. The first mounting bracket 1134 is elongated and has two sections, which are welded to the middle section 1132. The three-in-one controller 1621e is fixed to the first mounting bracket 1134 with bolts. The second mounting bracket 1135 is a raised sheet metal structure and has two sections, which are fixed to the front and rear sides of the middle section 1132 respectively. Alternatively, the second mounting bracket 1135 is square tubular, and its front end is fixed to the connection between the middle section 1132 and the side section 1131. The vehicle controller 1611m can be fixed to the second mounting bracket 1135 by bolts or other means.

[0041] Those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the spirit and essence of this application fall within the scope of this application's disclosure.

Claims

1. An electric all-terrain vehicle, comprising: A vehicle frame, comprising a front frame and a rear frame, wherein the front frame is connected to the front side of the rear frame; A body panel that at least partially covers the front frame and at least partially covers the rear frame; A running gear system including a front wheel and a rear wheel, wherein the front wheel is at least partially located under the front frame and the rear wheel is at least partially located under the rear frame; A suspension system comprising a front suspension and a rear suspension, the front suspension connecting the front wheels to the front frame and the rear suspension connecting the rear wheels to the rear frame; A powertrain system, supported by the rear frame, for providing power to drive the front and / or rear wheels; and An electrical system, including a high-voltage electrical system, said high-voltage electrical system comprising a plurality of high-voltage devices with a rated voltage greater than 36V; The device is characterized in that the rear frame is provided with a high-voltage installation area, and a crossbar is installed in the high-voltage installation area. The left and right ends of the crossbar are respectively connected to the left and right sides of the rear frame, and the crossbar is basically arranged in front of the power system. At least two high-voltage devices are provided in the high-voltage installation area, one of which is a power battery. The power battery is basically located in front of the crossbar, and at least one of the high-voltage devices other than the power battery is installed on the crossbar.

2. The electric all-terrain vehicle as described in claim 1, characterized in that, The rear frame includes two support columns, which are respectively located on the left and right sides of the rear frame and extend generally in the vertical direction. The two ends of the crossbar are respectively fixed to the two support columns. The rear frame also includes a rear support frame and a rear chassis arranged vertically. The support columns are fixedly connected to the rear support frame and the rear chassis, and the crossbar is generally located between the rear support frame and the rear chassis.

3. The electric all-terrain vehicle as described in claim 2, characterized in that, The rear frame also includes a mid-chassis and a cabin. Along the front-rear direction, the mid-chassis is fixed between the front frame and the rear chassis, and the cabin is supported by the mid-chassis. The support column is located at the connection between the mid-chassis and the rear chassis.

4. The electric all-terrain vehicle as described in claim 3, characterized in that, The rear chassis includes a connecting section and an extension section arranged in front and behind. The left and right ends of the connecting section are respectively connected to two support columns, and the front end of the extension section is fixed to the connecting section. The middle part of the connecting section in the left-right direction is set further back than the two ends, and the middle part of the crossbar in the left-right direction is also set further back than the two ends. The crossbar and the connecting section overlap at least partially in the up-down direction.

5. The electric all-terrain vehicle as described in claim 3, characterized in that, The rear frame also includes a seat frame located within the cabin or at the boundary of the cabin. The seat frame is located above the mid-chassis, and the power battery is located between the seat frame and the mid-chassis. When viewed from above, a portion of the power battery overlaps with the seat frame, and another portion of the power battery is located behind the seat frame. When viewed from the left and right, a portion of the power battery is located behind the support column.

6. The electric all-terrain vehicle as described in claim 2, characterized in that, The upper surface of the high-voltage device mounted on the crossbar is not higher than the upper surface of the rear support frame; the high-voltage device mounted on the crossbar includes a three-in-one controller, which includes a DC-DC converter, an on-board charger, and a power distribution unit; a vehicle controller is also mounted on the crossbar, and the three-in-one controller and the vehicle controller are arranged along the extension direction of the crossbar.

7. The electric all-terrain vehicle as described in claim 6, characterized in that, Viewed from top to bottom, the three-in-one controller is basically located at the front right or front left of the power system, and the rear end of the three-in-one controller is located behind the front end of the power system.

8. The electric all-terrain vehicle as described in claim 1, characterized in that, The power battery includes a battery assembly and a battery bracket. The battery assembly is located above the battery bracket and is connected to the rear frame through the battery bracket. The upper surface of the crossbar is lower than the upper surface of the battery assembly.

9. The electric all-terrain vehicle as described in claim 8, characterized in that, The crossbar is positioned further back in the middle than at both ends in the left-right direction; when viewed in the left-right direction, the two ends of the crossbar overlap with the power battery.

10. The electric all-terrain vehicle as described in claim 1, characterized in that, The crossbar includes two side segments and a middle segment. The middle segment connects the two side segments and extends in a direction that is substantially parallel to the left-right direction. The middle segment also extends in a direction that is substantially parallel to the rear side of the power battery. The high-voltage device is mounted on the middle segment.

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