Electric all-terrain vehicle

Abstract

This application discloses an electric all-terrain vehicle, comprising a frame, body panels, a running system, a power system, and a power battery. The body panels at least partially cover the frame, the running system is at least partially located below the frame, the power system is supported by the frame and is drive-connected to the running system, and the power battery is supported by the frame and electrically connected to the power system. The power battery includes a battery bracket and a battery pack. The battery pack is connected to the battery bracket, and the battery bracket is welded to the frame, forming at least one first welded structure. Each first welded structure includes a connected first weld and a second weld. The extension direction of the first weld is substantially perpendicular to the extension direction of the second weld, and the extension direction of the second weld is substantially parallel to the height direction of the frame. The electric all-terrain vehicle of this application exhibits high structural strength in its power battery and frame.

Description

Technical Field

[0001] This application relates to the field of 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, all-terrain vehicles (ATVs), as outdoor vehicles that integrate practicality, entertainment, and sports functions, are increasingly favored by consumers. ATVs demonstrate excellent adaptability in various complex road conditions such as beaches, grasslands, and mountain roads, and are widely used in outdoor operations, leisure activities, and transportation, as well as in commercial fields such as agriculture, construction, and rescue.

[0003] Currently, there are two main types of all-terrain vehicles: fuel-powered all-terrain vehicles and electric all-terrain vehicles. In electric all-terrain vehicles, the power battery is fixed to the frame, and the connection strength between the power battery and the frame is crucial. Therefore, how to improve the connection strength between the power battery and the frame is an urgent problem to be solved. Utility Model Content

[0004] In view of this, it is necessary to provide an electric all-terrain vehicle with high structural strength in its power battery and frame.

[0005] An embodiment of this application provides an electric all-terrain vehicle, which includes a frame, a body panel, a running system, a power system, and a power battery. The body panel at least partially covers the frame, the running system is at least partially located under the frame, the power system is supported by the frame and is drive-connected to the running system, the power battery is supported by the frame and electrically connected to the power system, the power battery includes a battery bracket and a battery pack, the battery pack is connected to the battery bracket, the battery bracket is welded to the frame, and forms at least one first welded structure, each first welded structure including a connected first weld and a second weld, the extension direction of the first weld being substantially perpendicular to the extension direction of the second weld, and the extension direction of the second weld being substantially parallel to the height direction of the frame.

[0006] Optionally, one of the battery bracket and the vehicle frame is provided with a mounting notch, and the other of the battery bracket and the vehicle frame is provided with a mounting beam. The mounting beam is embedded in the mounting notch, and the first welded structure is located between the mounting beam and the mounting notch.

[0007] Optionally, the mounting beam includes a first outer wall and two second outer walls, the first outer wall being located on the top or bottom surface of the mounting beam, and the second outer walls being located on the sides of the mounting beam; each first welded structure includes a first weld and two second welds, the two second welds being connected to the two ends of the first weld respectively; the first weld is located on the first outer wall, and the second welds are located on the second outer wall; each first welded structure further includes a reinforcing weld, the reinforcing weld being connected to the end of the second weld away from the first weld, the reinforcing weld being located on the second outer wall, and the extension direction of the reinforcing weld being substantially perpendicular to the extension direction of the second weld and substantially perpendicular to the extension direction of the first weld.

[0008] Optionally, the mounting beam is located on the vehicle frame, and the mounting notch is located on the battery bracket; the battery bracket includes a first frame and a second frame, the mounting notch is located at one end of the first frame away from the second frame, and the battery pack is fixedly connected to the second frame.

[0009] Optionally, the mounting notch extends through the first frame along the width direction of the frame and forms two extensions. The two extensions are respectively arranged on the front and rear sides of the mounting notch along the length direction of the frame. The mounting beam passes through the mounting notch, and the two extensions are respectively welded to the front and rear sides of the mounting beam to form a second weld. The outline of the mounting notch is basically inverted U-shaped.

[0010] Optionally, the frame includes a connecting beam, which includes a connecting top wall and a connecting side wall connected to the connecting top wall. The connecting top wall and the connecting side wall are substantially perpendicular to each other. The battery bracket has a connecting notch, and the connecting beam is embedded in the connecting notch. The connecting notch is welded to the connecting top wall and the connecting side wall.

[0011] Optionally, the battery bracket includes a third frame located behind the first frame and connected to the second frame. A connection notch is located at one end of the third frame away from the second frame. Along the width direction of the frame, the connection notch passes through the third frame, and a connecting beam passes through and is welded to the connection notch to form a second welded structure.

[0012] Optionally, the second welded structure includes a third weld and a fourth weld, with the third frame welded to the connecting top wall to form the third weld, and the third frame welded to the connecting side wall to form the fourth weld.

[0013] Optionally, the third frame is rod-shaped, with its upper end positioned forward and its lower end positioned backward.

[0014] Optionally, the two ends of the connecting beam are respectively connected to the two sides of the frame, and the middle part of the connecting beam protrudes backward compared to its two ends.

[0015] This application uses a first weld and a second weld that are connected, with the extension direction of the first weld being basically perpendicular to the extension direction of the second weld. The second weld extends in a vertical direction, so the power battery can be limited in a vertical direction through the second weld, and the power battery can be restricted from rotating around the second weld in a circumferential direction through the first weld. This can comprehensively limit the power battery, which is beneficial to improving the connection stability between the battery bracket and the vehicle frame and increasing the overall structural strength of the battery bracket and the vehicle frame. Attached Figure Description

[0016] Figure 1 A structural schematic diagram of the electric all-terrain vehicle according to an embodiment of this application is shown.

[0017] Figure 2 The diagram shows a partial structural schematic of the vehicle frame, transmission system, and power system in the embodiments of this application.

[0018] Figure 3 A schematic diagram of the vehicle frame and battery pack in an embodiment of this application is shown.

[0019] Figure 4 A schematic diagram of the structure of a portion of the vehicle frame and battery pack in an embodiment of this application is shown.

[0020] Figure 5 A schematic diagram of the battery pack structure in an embodiment of this application is shown.

[0021] Figure 6 A schematic diagram of the battery bracket and part of the vehicle frame in the embodiments of this application is shown.

[0022] Figure 7 The embodiments of this application are shown. Figure 6 Another perspective shows the structural diagram of the battery bracket and part of the vehicle frame.

[0023] Figure 8 A schematic diagram of the battery holder in an embodiment of this application is shown. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0025] When a component is considered to be "located" on another component, it can be directly on the other component or may also be interspersed with other components. When a component is considered to be "connected" to another component, it can be directly connected to the other component or may also be interspersed with other components.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] It is understandable that the term "perpendicular" is used to describe an ideal state between two components. In actual production or use, two components can exist in a state that is approximately perpendicular or equal to each other. For example, combined with numerical description, perpendicularity can refer to the angle between two straight lines within the range of 90° ± 10°, the dihedral angle between two planes within the range of 90° ± 10°, or the angle between a straight line and a plane within the range of 90° ± 10°. The two components described as "perpendicular" do not have to be absolutely straight lines or planes; they can be approximately straight lines or planes. From a macroscopic perspective, if the overall direction of extension is a straight line or plane, the component can be considered a "straight line" or "plane".

[0028] Unless otherwise defined, the term "multiple" in this document, when used to describe the number of components, specifically means that the component is two or more.

[0029] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] Please see Figure 1 and Figure 2 One embodiment of this application provides an electric all-terrain vehicle 100, including a frame 11, a body panel 12, a running system 13, a transmission system 14, a power system 18, a cargo bed 16, and a power battery 15. The body panel 12 substantially covers the outer periphery of the frame 11. The running system 13 is at least partially located below the frame 11. The power system 18 is supported by the frame 11 and provides power. The transmission system 14 is disposed on the frame 11 and transmits at least a portion of the power generated by the power system 18 to the running system 13, driving the running system 13 to move. The power battery 15 is supported by the frame 11 and provides electrical energy to the power system 18. The cargo bed 16 is connected to the frame 11 and is used to carry cargo.

[0031] In this application, the electric all-terrain vehicle 100 is an electric UTV (Utility Vehicle), and the power system 18 includes a power unit 181, which can be an electric motor or a range extender.

[0032] For ease of description, this application defines the directions of front, rear, left, right, up, and down. The front-rear direction refers to the length of the frame 11 of the electric all-terrain vehicle 100, the left-right direction refers to the width of the frame 11, and the up-down direction refers to the height of the frame 11. In this embodiment, the directions of front, rear, left, right, up, and down are based on the state of the electric all-terrain vehicle 100 traveling on a level surface, not on a sloping surface.

[0033] Please see Figure 2 In one implementation, the frame 11 includes a front support 111 and a rear support 112, which are arranged along the length of the frame 11. Along the length of the frame 11, the power battery 15 is located between the rear support 112 and the front support 111. The frame 11 also includes a main frame 113, which is connected between the front support 111 and the rear support 112 along the length of the frame 11, and the power battery 15 is welded to the main frame 113. The front support 111 is basically located at the front of the frame 11, the rear support 112 is basically located at the rear of the frame 11, and the main frame 113 is basically located in the passenger compartment area of ​​the frame 11.

[0034] Please see Figure 2 As one implementation method, a seat frame 17 is connected to the main frame 113. Along the height direction of the frame 11, the power battery 15 is located below the seat frame 17, which helps to reduce the space occupied by the power battery 15 and improve integration and space utilization.

[0035] Please see Figures 3 to 5 In one implementation, the power battery 15 includes a battery assembly 151 and wires (not shown) connected to the battery assembly 151. The battery assembly 151 includes a battery bracket 1511 and a battery pack 1512, with the battery pack 1512 connected to the battery bracket 1511. The battery bracket 1511 is welded to the vehicle frame 11, forming at least one first welded structure, defined as a first weld portion 153. The first weld portion 153 includes a first weld 1531 and a second weld 1532 connected together. The extension direction of the first weld 1531 is substantially perpendicular to the extension direction of the second weld 1532, which helps to improve the stability of the connection between the battery bracket 1511 and the vehicle frame 11 and increase the overall structural strength of the battery bracket 1511 and the vehicle frame 10. Exemplarily, the first weld 1531 extends substantially along the length direction of the vehicle frame 11, and the second weld 1532 extends substantially along the height direction of the vehicle frame 11, with the first weld 1531 connecting to the second weld 1532.

[0036] In one implementation, the battery bracket 1511 is welded to the main frame 113 to form two first welded parts 153. The two first welded parts 153 are spaced apart along the width direction of the frame 11. Furthermore, the two first welded parts 153 are located on both sides of the battery bracket 1511.

[0037] Please see Figure 4 As one implementation, the main frame 113 includes a mounting beam 1131 and two fixed beams 1132. The two fixed beams 1132 extend substantially along the length of the frame 11 and are spaced apart along the width of the frame 11. The mounting beam 1131 extends along the width of the frame 11. One end of the mounting beam 1131 is connected to one of the fixed beams 1132, and the other end is connected to the other fixed beam 1132.

[0038] Please see Figures 5 to 7 As one implementation, the mounting beam 1131 includes a first outer wall 1131a and two second outer walls 1131b connecting the first outer wall 1131a, with the two second outer walls 1131b arranged along the length of the frame 11. The battery bracket 1511 includes a mounting notch 1511a, into which the mounting beam 1131 is embedded. The weld formed by welding the mounting notch 1511a of the battery bracket 1511 to the first outer wall 1131a includes a first weld 1531, and the weld formed by welding the mounting notch 1511a of the battery bracket 1511 to the two second outer walls 1131b includes a second weld 1532. The first weld 1531 and the second weld 1532 are located on different planes, which helps to improve the stability of the connection between the battery bracket 1511 and the main frame 113 and increase the overall structural strength of the battery bracket 1511 and the frame 10.

[0039] As one implementation, the total length of the two second welds 1532 along the height direction of the frame 11 is greater than the height of the battery bracket 1511 along the width direction of the frame 11. Compared to the battery bracket 1511 being directly welded to the first outer wall 1131a, the increased weld length, achieved by embedding the mounting beam 1131 into the mounting notch 1511a, helps to reduce stress concentration, improve the stability of the connection between the battery bracket 1511 and the mounting beam 1131, and increase the overall structural strength of the battery bracket 1511 and the mounting beam 1131.

[0040] As one implementation, the weld formed by welding the mounting notch 1511a and the second outer wall 1131b also includes a reinforcing weld 1533. The end of the second weld 1532 away from the first weld 1531 is connected to the reinforcing weld 1533. The extension direction of the reinforcing weld 1533 is basically perpendicular to the extension direction of the second weld 1532, which further improves the stability of the connection between the battery bracket 1511 and the mounting beam 1131, and increases the overall structural strength of the battery bracket 1511 and the mounting beam 1131.

[0041] Please see Figure 8 As one implementation, two battery brackets 1511 are provided and arranged along the width direction of the frame 11, and the battery pack 1512 connects the two battery brackets 1511 (see...). Figure 5 The battery bracket 1511 includes a first frame 1511b, which extends along the height direction of the frame 11. This facilitates raising the height of the battery pack 1512 along the height direction of the frame 11, thereby improving the water resistance of the battery pack 1512. A mounting notch 1511a is located at the end of the first frame 1511b. Along the width direction of the frame 11, the mounting notch 1511a extends through the first frame 1511b. Optionally, when viewing the first frame 1511b along the width direction of the frame 11, the outline of the mounting notch 1511a is generally inverted U-shaped.

[0042] As one implementation, the length of the first frame 1511b ranges from 100mm to 130mm along the height direction of the frame 11, which is beneficial to improving the water resistance of the battery pack 1512.

[0043] Optionally, the length of the first frame 1511b can be any one or any combination of 100mm, 101mm, 102mm, 103mm, 104mm, 105mm, 106mm, 107mm, 108mm, 109mm, 110mm, 111mm, 112mm, 113mm, 114mm, 115mm, 116mm, 117mm, 118mm, 119mm, 120mm, 121mm, 122mm, 123mm, 124mm, 125mm, 126mm, 127mm, 128mm, 129mm, and 130mm.

[0044] Please see Figure 5 and Figure 7 In one implementation, the first frame 1511b includes two extensions 1511c, which overlap with the mounting beam 1131 along the length of the frame 11. The two extensions 1511c are spaced apart and opposite to each other along the length of the frame 11, with the middle area between them used to form a mounting notch 1511a. Along the height direction of the frame 11, the height of the extensions 1511c is less than the height of the second outer wall 1131b, so the end edges of the extensions 1511c can also completely abut against the second outer wall 1131b and form a weld. That is, the lower edge of the extensions 1511c can form a weld on the second outer wall 1131b, facilitating the extension of the second weld 1532 in the height direction of the frame 11 during welding.

[0045] In one implementation, the battery bracket 1511 includes a second frame 1511d, a first frame 1511b connected to one end of the second frame 1511d away from the mounting notch 1511a, and a battery pack 1512 fixedly connected to the second frame 1511d. The first frame 1511b and the second frame 1511d are connected substantially perpendicularly.

[0046] Please see Figure 6 In one implementation, the main frame 113 includes connecting beams 1133, mounting beams 1131, and connecting beams 1133 spaced apart along the length of the frame 11. One end of the connecting beam 1133 is connected to one of the fixed beams 1132, and the other end is connected to another fixed beam 1132.

[0047] Please see Figure 7 and Figure 8 The connecting beam 1133 includes a connecting top wall 1133a and a connecting side wall 1133b connected to the connecting top wall 1133a. The connecting top wall 1133a and the connecting side wall 1133b are arranged substantially vertically. The connecting side wall 1133b is the side wall of the connecting beam 1133 near the mounting beam 1131. The battery bracket 1511 includes a connecting notch 1511f, in which the connecting beam 1133 is embedded. The battery bracket 1511 is welded to the connecting top wall 1133a and the connecting side wall 1133b.

[0048] In one implementation, the battery bracket 1511 includes a third frame 1511g, which connects to the second frame 1511d. A connection notch 1511f is located at the end of the third frame 1511g opposite to the second frame 1511d. Along the width direction of the frame 11, the connection notch 1511f penetrates the third frame 1511g. Optionally, the connection notch 1511f is substantially inverted V-shaped.

[0049] Please see Figure 7In one implementation, the third frame 1511g is welded to the connecting beam 1133 to form a second welded structure, which is defined as the second welded part 154. The second welded part 154 includes a third weld 1541 and a fourth weld 1542, which form a closed-loop structure. The third frame 1511g is welded to the connecting top wall 1133a to form the third weld 1541, and the third frame 1511g is welded to the connecting side wall 1133b to form the fourth weld 1542. One end of the third weld 1541 is connected to one end of the fourth weld 1542, and the other end of the third weld 1541 is connected to the other end of the fourth weld 1542. The above-mentioned arrangement helps to increase the weld length between the third frame 1511g and the connecting beam 1133, which is beneficial to reduce stress concentration, improve the stability of the connection between the third frame 1511g and the connecting beam 1133, and increase the overall structural strength of the third frame 1511g and the connecting beam 1133.

[0050] Please see Figure 8 As one implementation, the second frame 1511d and the third frame 1511g form a first included angle α, which is an obtuse angle. Specifically, the third frame 1511g is rod-shaped, with its upper end forward and its lower end backward. This arrangement can improve the structural strength of the third frame 1511g and the second frame 1511d, and facilitate the welding of the third frame 1511g to the connecting beam 1133.

[0051] Please see Figure 4 The two ends of the connecting beam 1133 are respectively connected to the two sides of the frame 11. The middle part of the connecting beam 1133 protrudes rearward compared to its two ends. Specifically, the middle section of the connecting beam 1133 is parallel to the width direction of the frame 11, while its left and right sections are inclined, i.e., at an angle to the width direction of the frame 11. The third frame 1511g is welded to the left and right sections of the connecting beam 1133. Therefore, when a vehicle from behind impacts the vehicle from the front, due to the as-mentioned inclined arrangement of the left and right sections of the connecting beam 1133 and the third frame 1511g, the battery bracket 1511 can provide strong rearward support, thereby better protecting the battery pack 1512.

[0052] Please see Figure 5In one implementation, the power battery 15 also includes a fixing member 155. The battery pack 1512 includes a housing 1512a, a connecting portion 1512b connecting the housing 1512a, and a battery pack 1512d installed inside the housing 1512a. The connecting portion 1512b and the second frame 1511d are arranged along the height direction of the vehicle frame 11. The fixing member 155 passes through the connecting portion 1512b and the second frame 1511d. The fixing member 155 fixes the connecting portion 1512b to the second frame 1511d, using the side of the second frame 1511d facing the connecting portion 1512b as a whole as a bearing surface, thereby increasing the strength of the mounting point and improving the connection stability between the battery pack 1512 and the battery bracket 1511. Optionally, the fixing member 155 includes a threaded sleeve.

[0053] As one implementation, multiple fasteners 155 are arranged along the length of the frame 11. Each fastener 155 fixes the connecting part 1512b to the second frame 1511d. Each mounting point uses the side of the second frame 1511d facing the connecting part 1512b as a bearing surface, which further enhances the strength of the mounting point and further improves the connection stability between the battery pack 1512 and the battery bracket 1511.

[0054] In one implementation, a recess 1512c is formed at the bottom of the housing 1512a. Along the length of the frame 11, the recess 1512c penetrates the housing 1512a, and the transmission system 14 passes through the recess 1512c.

[0055] 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: Frame; A body panel that at least partially covers the vehicle frame; A walking system, at least partially located under the vehicle frame; The power system is supported by the vehicle frame and is connected to the running gear system via transmission. A power battery, which is supported by the vehicle frame and electrically connected to the power system; The power battery is characterized in that it includes a battery bracket and a battery pack; the battery pack is connected to the battery bracket, the battery bracket is welded to the vehicle frame, and forms at least one first welded structure, each first welded structure including a connected first weld and a second weld, the extension direction of the first weld being substantially perpendicular to the extension direction of the second weld, and the extension direction of the second weld being substantially parallel to the height direction of the vehicle frame.

2. The electric all-terrain vehicle of claim 1, wherein, One of the battery bracket and the vehicle frame is provided with an installation notch, and the other of the battery bracket and the vehicle frame is provided with an installation beam. The installation beam is embedded in the installation notch, and the first welded structure is located between the installation beam and the installation notch.

3. The electric all-terrain vehicle of claim 2, wherein, The mounting beam includes a first outer wall and two second outer walls. The first outer wall is located on the top or bottom surface of the mounting beam, and the second outer walls are located on the side surface of the mounting beam. Each first welded structure includes one first weld and two second welds, with the two second welds respectively connected to both ends of the first weld. The first weld is located on the first outer wall, and the second welds are located on the second outer wall. Each first welded structure also includes a reinforcing weld, which is connected to the end of the second weld away from the first weld. The reinforcing weld is located on the second outer wall, and its extension direction is substantially perpendicular to the extension direction of the second weld and substantially perpendicular to the extension direction of the first weld.

4. The electric all-terrain vehicle of claim 2, wherein, The mounting beam is located on the vehicle frame, and the mounting notch is located on the battery bracket; the battery bracket includes a first frame and a second frame, the mounting notch is located at one end of the first frame away from the second frame, and the battery pack is fixedly connected to the second frame.

5. The electric all-terrain vehicle of claim 4, wherein, The mounting notch extends through the first frame along the width direction of the frame and forms two extensions. The two extensions are respectively arranged on the front and rear sides of the mounting notch along the length direction of the frame. The mounting beam passes through the mounting notch, and the two extensions are respectively welded to the front and rear sides of the mounting beam to form the second weld. The outline of the mounting notch is basically inverted U-shaped.

6. The electric all-terrain vehicle of claim 4, wherein, The vehicle frame includes a connecting beam, which includes a connecting top wall and a connecting side wall connected to the connecting top wall. The connecting top wall and the connecting side wall are substantially perpendicular to each other. The battery bracket has a connecting notch, and the connecting beam is embedded in the connecting notch. The connecting notch is welded to the connecting top wall and the connecting side wall.

7. The electric all-terrain vehicle of claim 6, wherein, The battery bracket includes a third frame located behind the first frame and connected to the second frame. The connection notch is located at one end of the third frame away from the second frame. Along the width direction of the frame, the connection notch penetrates the third frame, and the connecting beam passes through the connection notch and is welded to the connection notch to form a second welded structure.

8. The electric all-terrain vehicle of claim 7, wherein, The second welded structure includes a third weld and a fourth weld. The third frame is welded to the connecting top wall to form the third weld, and the third frame is welded to the connecting side wall to form the fourth weld.

9. The electric all-terrain vehicle of claim 7 or 8, wherein, The third frame is rod-shaped, with its upper end positioned forward and its lower end positioned backward.

10. The electric all-terrain vehicle of claim 9, wherein, The two ends of the connecting beam are respectively connected to the two sides of the vehicle frame, and the middle part of the connecting beam protrudes backward compared to its two ends.

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