Electric two-wheeled vehicle

Abstract

The utility model discloses an electric two-wheeled vehicle which comprises a vehicle frame, a walking system, a suspension assembly, a battery system and a vehicle body covering part, and the vehicle frame comprises a main vehicle frame and an auxiliary vehicle frame; the walking system comprises a front wheel and a rear wheel; wherein the electric two-wheeled vehicle comprises a first assembly state, a second assembly state, a third assembly state and a fourth assembly state, the vehicle frame further comprises an auxiliary vehicle frame, the auxiliary vehicle frame is arranged behind the main vehicle frame, and the auxiliary vehicle frame comprises at least one of a first extension frame, a second extension frame and a third extension frame; when the electric two-wheeled vehicle is provided with the second extension frame, the electric two-wheeled vehicle is in a second assembly state; when the electric two-wheeled vehicle is provided with the third extension frame, the electric two-wheeled vehicle is in a third assembly state; and when the electric two-wheeled vehicle is not provided with the auxiliary frame, the electric two-wheeled vehicle is in a fourth assembly state. By means of the arrangement, the electric two-wheeled vehicle is compact in frame arrangement and capable of meeting various transportation requirements.

Description

Technical Field

[0001] The utility model relates to an electric vehicle, in particular to an electric two-wheeler. Background Art

[0002] With the increasing attention of the current society to the issues of environmental protection and energy conservation, as a means of transportation for green energy conservation and emission reduction, electric two-wheelers have played an increasingly important role in the public travel.

[0003] The frame of an electric two-wheeler not only bears the mass of the driver, power components and other assemblies, but also bears various forces and torques transmitted from the power components and other components to the frame. The frame includes a main frame and a sub-frame, and the main frame and the sub-frame are usually detachably connected. To meet different user needs, different sizes of the sub-frame need to be manufactured, resulting in a high cost. Therefore, how to reasonably design the main frame and the sub-frame to adapt to and meet various transportation needs has always been an urgent problem to be solved in the field of electric two-wheelers. Summary of the Utility Model

[0004] To solve the above problems, the present application provides an electric two-wheeler with a compact frame layout that meets various transportation needs.

[0005] To achieve the above object, the present application adopts the following technical solutions:

[0006] An electric two-wheeler, comprising: a frame, the frame including a main frame and a sub-frame; a body cover, the body cover at least partially covering the frame; a suspension assembly, the suspension assembly at least partially disposed on the frame; a running system, the running system being connected to the frame through the suspension assembly; a power assembly, the power assembly at least partially disposed on the main frame; a seat bucket assembly, the seat bucket assembly at least partially disposed on the main frame; wherein, the electric two-wheeler includes a first assembled state, a second assembled state, a third assembled state and a fourth assembled state, the frame further includes a sub-frame, the sub-frame is disposed behind the main frame, the sub-frame includes at least one of a first extension frame, a second extension frame and a third extension frame, the first extension frame is used to add a seat, the second extension frame is used to cooperate with the main frame to extend the length of the seat bucket assembly, the third extension frame is an armrest frame; when the first extension frame is installed on the electric two-wheeler, the electric two-wheeler is in the first assembled state; when the second extension frame is installed on the electric two-wheeler, the electric two-wheeler is in the second assembled state; when the third extension frame is installed on the electric two-wheeler, the electric two-wheeler is in the third assembled state; when the sub-frame is not installed on the electric two-wheeler, the electric two-wheeler is in the fourth assembled state.

[0007] Further, the body covering includes at least one of a short-tail component and a long-tail component. When the electric two-wheeler is installed with the short-tail component, the electric two-wheeler is in the first assembly state, the third assembly state, or the fourth assembly state. When the electric two-wheeler is installed with the long-tail component, the electric two-wheeler is in the second assembly state, the third assembly state, or the fourth assembly state.

[0008] Further, the seat bucket assembly includes at least one of a short seat cushion and a long seat cushion. The short seat cushion is at least partially disposed on the main frame. The short-tail component is disposed below the short seat cushion. The short-tail component is fixedly connected to the main frame. When viewed in the height direction of the electric two-wheeler, the short-tail component substantially overlaps with the short seat cushion; the short-tail component is rotatably connected to the short seat cushion.

[0009] Further, the long-tail component is disposed below the long seat cushion. The long-tail component is rotatably connected to the long seat cushion. The long-tail component at least partially overlaps with the running system.

[0010] Further, the first extension frame is at least partially disposed on the main frame. Define a longitudinal plane perpendicular to the width direction of the electric two-wheeler. The projection of the first extension frame on the longitudinal plane along the width direction of the electric two-wheeler is substantially a triangle.

[0011] Further, the main frame includes a left tube and a right tube. The frame further includes a footrest. The left tube and the right tube both extend substantially along the length direction of the frame. The footrest is detachably connected to the left tube and the right tube. Define a longitudinal central plane of the frame that is perpendicular to the width direction of the frame and passes through the center of the width of the frame. The left tube and the right tube both at least partially indent towards the longitudinal central plane. The left tube indents towards the longitudinal plane to form an avoidance space. The footrest is at least partially located in the avoidance space.

[0012] Further, the left tube includes an upper left tube. The right tube includes an upper right tube. The upper left tube includes an upper left straight section that extends substantially along the front-back direction of the frame and an upper left indented section that is disposed behind the upper left straight section and indents towards the longitudinal central plane. The upper right tube includes an upper right straight section that extends substantially along the front-back direction of the frame and an upper right indented section that is disposed behind the upper left straight section and indents towards the longitudinal central plane. The maximum distance between the upper left straight section and the upper right straight section is W1. The distance between the upper left indented section and the upper right indented section is W2. The ratio range of W1 to W2 is 1.15 to 1.25.

[0013] Further, the footrest is detachably disposed on the upper left indented section and the upper right indented section.

[0014] Further, the main frame further includes a connecting cross tube. The connecting cross tube is disposed between the upper left tube and the upper right tube. The connecting cross tube extends substantially along the width direction of the frame 11. At least part of the sub-frame is located behind the connecting cross tube. The sub-frame is detachably connected to the connecting cross tube.

[0015] Further, the first extension frame is made of metal material.

[0016] The electric two-wheeler provided by the present application includes a first assembly state, a second assembly state, a third assembly state, and a fourth assembly state. The vehicle frame further includes a sub-frame, which is arranged behind the main frame. The sub-frame includes at least one of a first extension frame, a second extension frame, and a third extension frame. When the second extension frame is installed on the electric two-wheeler, the electric two-wheeler is in the second assembly state. When the third extension frame is installed on the electric two-wheeler, the electric two-wheeler is in the third assembly state. When the sub-frame is not installed on the electric two-wheeler, the electric two-wheeler is in the fourth assembly state. Through the above settings, an electric two-wheeler with a compact frame layout and meeting various transportation requirements is provided. In this setting, the frame layout is compact and can meet various transportation requirements. Description of the Drawings

[0017] Figure 1 is an overall structural schematic diagram of a transportation state of the electric two-wheeler provided by an embodiment of the present application;

[0018] Figure 2 is an overall structural schematic diagram of another transportation state of the electric two-wheeler provided by an embodiment of the present application;

[0019] Figure 3 is a structural schematic diagram of the main frame provided by an embodiment of the present application;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the main frame from another perspective provided by an embodiment of the present application;

[0021] Figure 5 is an exploded structural schematic diagram of the main frame and the foot component provided by an embodiment of the present application;

[0022] Figure 6 is a top view of the main frame provided by an embodiment of the present application;

[0023] Figure 7 is a three-dimensional structural schematic diagram of the first sub-frame assembled provided by an embodiment of the present application;

[0024] Figure 8 is a three-dimensional structural schematic diagram of the second sub-frame assembled provided by an embodiment of the present application;

[0025] Figure 9 is a three-dimensional structural schematic diagram of the third sub-frame assembled provided by an embodiment of the present application;

[0026] Figure 10 is a structural schematic diagram of the center stand assembly in different states provided by an embodiment of the present application;

[0027] Figure 11 is a three-dimensional structural schematic diagram of the center strut assembly provided by an embodiment of the present application;

[0028] Figure 12 is a structural schematic diagram of the seat bucket assembly provided by an embodiment of the present application;

[0029] Figure 13 is a side view of the seat bucket assembly provided by an embodiment of the present application;

[0030] Figure 14 is a structural schematic diagram of the seat bucket assembly and the body covering provided by an embodiment of the present application;

[0031] Figure 15 is an assembly schematic diagram of the seat bucket assembly and the cable structure provided by an embodiment of the present application;

[0032] Figure 16 is a three-dimensional structural schematic diagram of the spoiler assembly provided by an embodiment of the present application;

[0033] Figure 17 is an exploded structural schematic diagram of the spoiler assembly provided by an embodiment of the present application;

[0034] Figure 18 is a three-dimensional structural schematic diagram of the instrument assembly provided by an embodiment of the present application. Detailed implementation manners

[0035] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the specific embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above descriptions, and all such improvements and transformations should fall within the protection scope of the appended claims of the present application.

[0036] Such as Figures 1 to 3As shown, an electric two-wheeler 100 includes a frame 11, a suspension assembly 12, a running system 13, a body cover 14, a seat bucket assembly 15, a lighting system 16, and a battery system (not shown in the figure). The frame 11 is used to form the overall structure and support the battery system and the body cover 14. The running system 13 is connected to the frame 11 through the suspension assembly 12 to drive the electric two-wheeler 100 to move. The seat bucket assembly 15 is at least partially connected to the frame 11 and is available for the driver to sit on. The battery system is at least partially disposed in the space formed by surrounding the frame 11. The body cover 14 covers the frame 11 and is used to isolate other components inside the frame 11 from the outside world, and at the same time protect the equipment and structure inside the vehicle. The lighting system 16 provides lighting, steering indication signals, and warning signals for the electric two-wheeler 100. The battery system provides electrical energy for the electric two-wheeler 100 to drive the electric two-wheeler 100. To clearly illustrate the technical solution of the present application, the front side, rear side, upper side, lower side, left side, and right side as shown in Figure 1 are also defined. The front-rear direction is the length direction of the electric two-wheeler 100, the left-right direction is the width direction of the electric two-wheeler 100, and the up-down direction is the height direction of the electric two-wheeler 100.

[0037] As Figures 1 to 5 shown, the frame 11 includes a main frame 111 and a sub-frame 112 for forming the overall structure of the electric two-wheeler 100. The sub-frame 112 is at least partially disposed behind the main frame 111 and is detachably connected to the main frame 111. The main frame 111 includes a support vertical tube 1111, a left tube 1112, and a right tube 1113. The support vertical tube 1111 is basically distributed along the height direction of the frame 11. The left tube 1112 and the right tube 1113 are both arranged to extend basically along the length direction of the frame 11. The left tube 1112 and the right tube 1113 are both fixedly connected to the support vertical tube 1111. A plane perpendicular to the width direction of the electric two-wheeler 100 and passing through the center of the width of the electric two-wheeler 100 is defined as the longitudinal center plane 101 of the electric two-wheeler 100. Both the left tube and the right tube 1113 are at least partially recessed toward the longitudinal center plane. The left tube 1112 and the right tube 1113 are basically symmetrically arranged along the longitudinal center plane. Since the main frame 111 of the electric two-wheeler 100 is basically symmetrically arranged about the longitudinal center plane 101, for the symmetric structure, only one side is described below.

[0038] As Figures 1 to 6As shown in the figure, the left tube 1112 is recessed towards the longitudinal plane to form an avoidance space 102. The frame 11 further includes a foot component 113, and at least a part of the foot component 113 is located in the avoidance space 102. The left tube 1112 includes an upper left tube 1112a and a lower left tube 1112b, and the right tube 1113 includes an upper right tube 1113a and a lower right tube 1113b. An accommodation gap is formed between the upper left tube 1112a and the lower left tube 1112b. The upper left tube 1112a and the lower left tube 1112b can be set as any one of a circular tube, a rectangular tube or an elliptical tube. The frame 11 can also be provided with a foot component 113, and the main frame 111 further includes a reinforcing plate 1114. A plurality of reinforcing plates 1114 are arranged between the upper left tube 1112a and the lower left tube 1112b. The reinforcing plates 1114 are used to connect between the upper left tube 1112a and the lower left tube 1112b. The reinforcing plates 1114 basically extend along the height direction of the frame 11 and are used to connect the upper left tube 1112a and the lower left tube 1112b, and at the same time enhance the strength of the upper left tube 1112a and the lower left tube 1112b. In this setting, both the left tube 1112 and the right tube 1113 are set as double-layer side tubes, which not only enhances the overall strength of the frame 11, but also provides an installation position for the foot component 113. The frame 11 is more compactly arranged, has higher space utilization rate, and is more lightweight. In addition, mounting holes are provided on the reinforcing plate 1114. Through this setting method, the strength of the double-layer side tube formed by the upper left tube 1112a and the lower left tube 1112b is enhanced, and an installation position for the wire harness on the electric two-wheeler 100 is provided. The left tube 1112 and the right tube 1113 are respectively arranged at both ends in the width direction of the main frame 111. It can be understood that the structures and connection methods of the left tube 1112 and the right tube 1113 are basically the same. Only the connection method of the left tube 1112 will be described in terms of structure below.

[0039] As an optional implementation manner, the front end of the upper left tube 1112a is connected to the support vertical tube 1111, and the front end of the lower left tube 1112b is connected to the support vertical tube 1111. The upper left tube 1112a includes an upper left straight section 1112c that basically extends along the front-rear direction of the frame 11. The upper left tube 1112a further includes an upper left recessed section 1112d that is arranged behind the upper left straight section 1112c and recesses towards the longitudinal central plane of the frame 11. The upper left tube 1112a further includes an upper left extension section 1112e that is arranged behind the upper recessed section and extends along the rear-upper direction. The lower left tube 1112b includes a lower left straight section 1112f that basically extends along the front-rear direction of the frame 11. The lower left tube 1112b further includes a lower left recessed section 1112g that is arranged behind the upper straight section and recesses towards the longitudinal central plane of the electric two-wheeler.

[0040] As an implementation manner, the front end of the upper right side tube 1113a is connected to the supporting vertical tube 1111. The front end of the upper right side tube 1113a is connected to the supporting vertical tube 1111. The upper right side tube 1113a includes an upper right straight section 1113c that extends substantially along the front-rear direction of the vehicle frame 11. The upper right side tube 1113a further includes an upper right recessed section 1113d that is disposed behind the upper right straight section 1113c and recesses toward the longitudinal center plane of the vehicle frame 11. In the height direction of the vehicle frame 11, the maximum distance between the upper left straight section 1112c and the upper right straight section 1113c is defined as W1, and the maximum distance between the upper left recessed section 1112d and the upper right recessed section 1113d is defined as W2. Specifically, the ratio of W1 to W2 is set within a preset range. More specifically, the ratio range of W1 to W2 is from 1.15 to 1.25. As an optional implementation manner, the ratio range of W1 to W2 is from 1.17 to 1.23. As an optional implementation manner, the ratio range of W1 to W2 is from 1.19 to 1.21. In this setting manner, the ratio of W1 to W2 is within a suitable range, which can provide a suitable width for the driver to ride and can also provide installation space for the footrest as much as possible for the rear passengers to rest their feet. It can be understood that when the ratio of W1 to W2 is set greater than this range, the distance in the width direction of the vehicle frame 11 is too large, which is inconvenient for the driver to ride and is not conducive to lightweight; when the ratio of W1 to W2 is set less than this range, the rear passengers cannot place their feet comfortably. It can be understood that the ratio of W1 to W2 can be 1.18, 1.2, 1.22, etc.

[0041] As an optional implementation manner, the main vehicle frame 111 further includes a mounting plate 1115. The suspension assembly 12 includes a rear swing arm 121. The rear swing arm 121 is connected to the main vehicle frame 111 through the mounting plate 1115. When observed in the height direction of the vehicle frame 11, the mounting plate 1115 is at least partially located below the extension section. As an optional implementation manner, one mounting plate 1115 is provided, and the mounting plate 1115 is disposed between the upper left side tube 1112a and the lower left side tube 1112b, or the mounting plate 1115 is disposed between the upper right side tube 1113a and the lower right side tube 1113b. As another optional implementation manner, two mounting plates 1115 are provided. One mounting plate 1115 is disposed between the upper left side tube 1112a and the lower left side tube 1112b, and the other mounting plate is disposed between the upper right side tube 1113a and the lower right side tube 1113b. The two mounting plates 1115 are respectively disposed at both ends in the width direction of the main vehicle frame 111. It can be understood that the structures and connection manners of the two mounting plates 1115 are basically the same. Only the structure of one mounting plate 1115 and its connection manner will be described below.

[0042] It can be understood that the vehicle frame 11 can also be provided with a foot component 113. The foot component 113 can be provided with two footrests 1131 respectively arranged at both ends in the width direction of the main vehicle frame 111. The foot component 113 is detachably connected to the main vehicle frame 111. As an alternative implementation, the foot component 113 includes a footrest 1131, and the footrest 1131 is set as a "7"-shaped metal plate member. The upper end surface of the footrest 1131 is basically at the same horizontal plane as the upper end of the left upper side tube 1112a. The side surface of the footrest 1131 is detachably connected to the main vehicle frame 111. Specifically, the side surface of the footrest 1131 is detachably arranged on the upper recessed section and / or the lower recessed section. As another alternative implementation, a reinforcing plate 1114 is connected between the upper recessed section and / or the lower recessed section, and the side surface of the footrest 1131 is detachably arranged on the reinforcing plate 1114. As another alternative implementation, the side surface of the footrest 1131 is detachably arranged on the reinforcing plate 1114 and the mounting plate 1115.

[0043] As Figures 1 to 6 shown, the body covering 14 includes a covering main body 141 and a footrest guard 142. The footrest guard 142 is detachably connected to the covering main body 141. The footrest guard 142 at least partially covers the footrest 1131. The footrest guard 142 includes a pedal panel 1421 and a side strip panel 1422, and the pedal panel 1421 and the side strip panel 1422 are detachably connected along the height direction of the vehicle frame 11. When observing along the height direction of the vehicle frame 11, the pedal panel 1421 and the footrest 1131 are basically overlapped. The pedal panel 1421 abuts against the upper end surface of the footrest 1131. When the rear occupant places their feet, the pedal panel 1421 is evenly stressed and will not be damaged due to stress. And after the footrest guard 142 is installed, it wraps the footrest 1131, which can block the connecting member between the footrest 1131 and the main vehicle frame 111, making the appearance more beautiful. Under the above settings, if the electric two-wheeler 100 does not need to increase the transportation demand, the footrest 1131 and the footrest guard 142 can be removed. At this time, the front driver naturally lets their legs hang down to the ground, and the vehicle frame at the position where their legs are located is narrower, which is convenient for the driver to perform parking operations and the human body comfort is higher. When the electric two-wheeler 100 needs to increase the transportation demand, a footrest 1131 can be installed along the outer edge of the recessed section in the width direction of the vehicle frame, and at the same time, a footrest guard 142 is assembled on the footrest 1131 for the rear occupant to place their feet, without changing the main vehicle frame 111 and the covering main body 141, making the main vehicle frame 111 and the covering main body 141 more versatile, that is, the cost required when increasing the transportation demand is lower.

[0044] As Figures 1 to 9As shown, the sub-frame 112 is at least partially disposed behind the main frame 111 and is detachably connected to the main frame 111. The main frame 111 further includes a connecting cross-tube 1116 disposed between the left upper side tube 1112a and the right upper side tube 1113a, and the connecting cross-tube 1116 extends substantially along the width direction of the frame 11. The sub-frame 112 is at least partially located behind the connecting cross-tube 1116. As an alternative embodiment, the sub-frame 112 is detachably connected to the connecting cross-tube 1116. As another alternative embodiment, the sub-frame 112 is detachably connected to the connecting cross-tube 1116, the left upper side tube 1112, and the right upper side tube 113.

[0045] As an alternative embodiment, the electric two-wheeler 100 includes a first assembled state, a second assembled state, a third assembled state, and a fourth assembled state, and the sub-frame 112 includes at least one of a first extension frame 1121, a second extension frame 1122, and a third extension frame 1123. The first extension frame 1121 is a seat mounting frame, and a seat can be installed on the main frame 111 through the first extension frame 1121. The second extension frame 1122 is a frame extension frame that can extend the body length of the electric two-wheeler 100. The third extension frame 1123 is a rear armrest frame. The cover body 141 includes at least one of a long-tail component 1411 and a short-tail component 1412. When the electric two-wheeler 100 is in the first assembled state, the first extension frame 1121 is installed and the short-tail component 1412 is configured; when the electric two-wheeler 100 is in the second assembled state, the second extension frame 1122 is assembled and the long-tail component 1411 is configured; when the electric two-wheeler 100 is in the first assembled state, the sub-frame 112 is not installed. When the electric two-wheeler 100 is in the third assembled state, the third extension frame 1123 is assembled and the short-tail component 1412 is configured. In this case, the electric two-wheeler 100 includes multiple transportation states, the sub-frame 112 includes multiple shapes and sizes, and when the electric two-wheeler 100 needs to change the transportation state according to actual needs, only different sub-frames 112 and cover bodies 141 need to be assembled, without changing the main frame 111, which improves the versatility of the frame 11.

[0046] As an alternative embodiment, the short tail assembly 1412 is disposed below the seat bucket assembly 15. The short tail assembly 1412 is fixedly connected to the main frame 111. The seat cushion 151 includes at least one of a long seat cushion (not shown in the figure) and a short seat cushion (not shown in the figure). The short tail assembly 1412 is rotatably connected to the short seat cushion. When observed in the height direction of the frame 11, the short tail assembly 1412 substantially overlaps with the seat bucket assembly 15. When installing the short tail assembly 1412, the first extension frame 1121 or the third extension frame 1123 can be selected for installation. The first extension frame 1121 is substantially symmetric about the longitudinal plane. The first extension frame 1121 is a seat mounting frame. The first extension frame 1121 is used to add a seat, and the seat can be disposed above the first extension frame 1121. The projection of the first extension frame 1121 on the longitudinal plane in the width direction of the frame 11 is a triangle. The first extension frame 1121 is made of metal. In this setting mode, a stable triangular structure is formed by the first extension frame 1121, and the load of the first extension frame 1121 is heavier.

[0047] As another alternative embodiment, the long tail assembly 1411 is disposed below the seat bucket assembly 15. The long tail assembly 1411 is at least partially disposed on the second extension frame 1122. The long tail assembly 1411 is rotatably connected to the long seat cushion. The second extension frame 1122 is used to cooperate with the main frame 111 to extend the length of the seat bucket assembly 15, thereby extending the length of the electric two-wheeler 100 and increasing the carrying capacity of the electric two-wheeler 100. The long tail assembly 1411 is rotatably connected to the long seat cushion. At this time, the size of the seat cushion 151 and at least a part of the long tail assembly 1411 overlap with the running system 13. It can be understood that the second extension frame 1122 and the long tail assembly 1411 are detachably installed, and whether to assemble the second extension frame 1122 and the long tail assembly 1411 can be determined according to the transportation requirements during assembly.

[0048] As Figure 2 , Figure 10 and Figure 11 shown, as an implementation manner, the suspension assembly 12 includes a rear swing arm 121. The rear wheel 132 is connected to the frame 11 through the rear swing arm 121. Further, one end of the rear swing arm 121 is rotatably connected to the mounting plate 1115, and the other end of the rear swing arm 121 is disposed on the rear wheel axle 1321. The main frame 111 further includes a support cross tube 1117. The support cross tube 1117 extends along the width direction of the frame. The support cross tube 1117 is disposed between the left lower side tube 1112b and the right lower side tube 1113b. The support cross tube 1117 can strengthen the strength of the main frame 111. The frame 11 further includes a center stand assembly 114. The center stand assembly 114 is disposed on the support cross tube 1117. The center stand assembly 114 is located below the rear swing arm 121. When observed in the height direction of the frame, the center stand assembly 114 at least partially overlaps with the rear swing arm 121.

[0049] Specifically, the center support assembly 114 is rotatably connected to the support cross tube 1117. The center support assembly 114 rotates around the extension direction of the support cross tube 1117. The center support assembly 114 includes a first position where it can be retracted and a second position where it can support the electric two-wheeler 100. The center support assembly 114 can be switched between the first position and the second position under the operation of the driver to meet the driving and parking requirements of the electric two-wheeler 100. The support cross tube 1117 further includes an extension portion 1117a, and the center support assembly 114 is disposed on the extension portion 1117a. In this setting, there is no need to add new connecting pipe fittings. By adding the extension portion 1117a to adjust the position of the center support assembly 114, while meeting the human-machine requirements of the vehicle, the frame can be made lighter.

[0050] As shown in Figure 2 , Figure 7 As an implementation manner, the center support assembly 114 includes a center support main body 1141, an elastic member 1142, and a buffer member 1143. One end of the elastic member 1142 is disposed on the center support main body 1141, and the other end of the elastic member 1142 is disposed on the support cross tube 1117. The elastic member 1142 provides a pre-tightening force for the center support main body 1141 to approach the support cross tube 1117, so that the center support assembly 114 can stably stay in the first position or the second position. The center support main body 1141 includes a receiving portion 1141a, and the receiving portion 1141a is located between the rear fork 121 and the center support main body 1141; the buffer member 1143 is at least partially disposed in the receiving portion 1141a. The buffer member 1143 can be set as a roller, and the buffer member 1143 is made of rubber. The rear fork 121 includes a fork main body 1211 and a collision prevention plate 1212. When the center support assembly 114 is in the first position, the buffer member 1143 abuts against the collision prevention plate 1212. The collision prevention plate 1212 is fixedly connected to the fork main body 1211, and the collision prevention plate 1212 is located below the fork main body 1211. When the center support assembly 114 rotates from the second position to the first position, due to the rotational inertia and the tightening force of the elastic member 1142, the elastic member 1142 first touches the fork collision prevention plate 1212, and the elastic member 1142 absorbs the impact force, thereby avoiding damage to the rear fork 121 by the center support assembly 114, reducing the interference between the center support assembly 114 and the rear fork 121, and improving the service life of the rear fork 121 and the center support assembly 114.

[0051] As shown in Figures 1 to 15As shown, the seat bucket assembly 15 includes a seat cushion 151 and a first seat bucket main body 152. The first seat bucket main body 152 is disposed below the seat cushion 151. The first seat bucket main body 152 surrounds and forms a first accommodation space 1521. The seat cushion 151 is rotatably connected to the first seat bucket main body 152, and the seat cushion 151 can enclose the first accommodation space 1521. The battery system can be disposed in the first accommodation space 1521. The seat cushion 151 includes a first support surface for the driver to sit on and a second support surface close to the seat bucket 152. Both the first support surface and the second support surface are arc-shaped. The vehicle frame 11 further includes a center support cross tube 1118. One end of the center support cross tube 1118 is connected to the left upper side tube and the other end is connected to the right upper side tube. An installation plate 1118a is provided at the upper end of the center support cross tube 1118 for placing the seat bucket assembly 15. While strengthening the main vehicle frame 111, the center support cross tube 1118 provides an installation point for the seat bucket assembly 15.

[0052] As an alternative implementation, the seat bucket assembly 15 further includes a second seat bucket main body 153. The second seat bucket main body 153 surrounds and forms a second accommodation space 1531. In the front-rear direction of the vehicle frame 11, the second seat bucket main body 153 is disposed behind the first seat bucket main body 152. The first seat bucket main body 152 includes a first opening 1522, and the second seat bucket main body 153 includes a second opening 1532. The opening directions of the first opening 1522 and the second opening 1532 are substantially the same. The first seat bucket main body 152 is fixedly connected to or integrally formed with the second seat bucket main body 153. The first seat bucket main body 152 includes a first bottom wall, and the second seat bucket main body 153 includes a second bottom wall 1533. When observed in the height direction of the vehicle frame, the second bottom wall 1533 is higher than the first bottom wall. The second seat bucket main body 153 further includes a third bottom wall 1534. One end of the bottom of the second seat bucket main body 153 close to the first seat bucket main body 152 bulges upward to form the third bottom wall 1534. The third bottom wall 1534 is arranged to extend in the length direction of the vehicle frame. When observed in the height direction of the vehicle frame, the third bottom wall 1534 is higher than the second bottom wall 1533. In this setting, the front part of the second seat bucket main body 153 bulges upward to form the third bottom wall 1534. The third bottom wall 1534 is higher than the second bottom wall 1533 and the first bottom wall respectively. The third bottom wall 1534 isolates the first accommodation space 1521 from the second accommodation space 1531, with high space utilization rate. Moreover, the first accommodation space 1521 and the second accommodation space 1531 are separated. The battery system is disposed in the first accommodation space 1521 for placing items, reducing interference and being safer.

[0053] As an alternative implementation, the electric two-wheeler 100 includes a cable structure 17. The left and right side walls of the second seat bucket main body 153 protrude into the second accommodation space 1531 to form mounting portions 1535. The mounting portions 1535 include through holes with an opening direction along the height direction of the vehicle frame. At least a part of the cable structure 17 passes through the through holes. In this setting, the complex unlocking structure of the existing electric two-wheeler 100 is omitted. Only by directly limiting the cable structure 17 through the through holes and opening the seat cushion 151 can the cable be pulled. The unlocking position is located under the seat cushion 151, which can reduce the number of components, simplify the structure, and reduce costs.

[0054] As another alternative implementation, the left and right side walls of the first seat bucket main body 152 protrude into the first accommodation space 1521 to form mounting portions 1535. The mounting portions 1535 include through holes with an opening direction along the height direction of the vehicle frame. At least a part of the cable structure 17 passes through the through holes.

[0055] As Figures 12 to 14 shown, a first protruding portion is provided on the inner wall surface of the first seat bucket main body 152, and the first protruding portion protrudes in the direction of the first accommodation space 1521. In this setting, the first protruding portion can enhance the wall strength of the first seat bucket main body 152, and the first seat bucket main body 152 is not easily broken.

[0056] As an alternative implementation, the seat bucket assembly 15 further includes a platform portion 154. The second seat bucket main body 153 extends rearward toward the vehicle frame to form the platform portion 154. The platform portion 154 is at least partially connected to the main vehicle frame 111. The platform portion 154 has a through hole with an opening along the height direction of the vehicle frame. The seat bucket further includes a locking structure (not shown in the figure). When the seat cushion 151 closes the first accommodation space 1521 and the second space, at least a part of the locking structure is located in the through hole. Mounting holes are also provided on the platform portion 154. The seat bucket can be fixed to the vehicle frame by passing bolts through the mounting holes. In this setting, the platform portion 154 integrates the functions of locking the seat cushion 151 and the through holes and mounting holes for installing the seat bucket, with a high degree of integration and convenient installation.

[0057] As Figures 12 to 15 shown, the body covering 14 surrounds the outer periphery of the seat bucket assembly 15. The body covering 14 further includes a front cover 143. The front cover 143 is detachably mounted on the covering main body 141. The front cover 143 is located in front of the covering main body 141. When observed along the length direction of the vehicle frame, at least a part of the front cover 143 is provided to overlap with the seat bucket assembly 15. The front cover 143 and the covering main body 141 at least partially cover the seat bucket assembly 15.

[0058] As an alternative implementation, the electric two-wheeler 100 further includes an air switch 18. The air switch 18 is disposed on the front outer wall of the first seat bucket main body 152, and at least part of the air switch 18 is located between the front cover 143 and the first seat bucket main body 152. An operation hole 1524 is further provided at a position on the inner wall of the first seat bucket main body 152 corresponding to the air switch 18. The operation hole 1524 may be a through hole opening in the front-rear direction, and the driver can operate the air switch 18 through the through hole. In this setting, the gap formed by the surrounding between the front cover 143 and the seat bucket assembly 15 is used to dispose the air switch 18 in this gap, and an operation hole is opened on the barrel wall of the first seat bucket main body 152 to operate the air switch 18 through the operation hole 1524, which can not only better protect the air switch 18, but also facilitate the operation of the air switch 18.

[0059] As Figure 1 , Figure 2 and Figure 18 shown, the electric two-wheeler 100 further includes an instrument 19. The instrument 19 is disposed at the front of the electric two-wheeler 100. A plane perpendicular to the height direction of the frame 11 is defined as a reference plane, and the included angle α between the extending direction of the instrument 19 and the reference plane is set within a preset range. More specifically, the range of the included angle α between the extending direction of the instrument 19 and the reference plane is from 35° to 45°. As an alternative implementation, the range of the included angle α between the extending direction of the instrument 19 and the reference plane is from 37° to 43°. As an alternative implementation, the range of the included angle α between the extending direction of the instrument 19 and the reference plane is from 39° to 41°. In this setting manner, the included angle α between the extending direction of the instrument 19 and the reference plane is within a suitable range, which can provide a suitable angle for the driver to observe information, meeting both the human-machine requirements and not reflecting light so as to affect the line of sight. It can be understood that when the included angle α between the extending direction of the instrument 19 and the reference plane is greater than this range, it does not conform to the human-machine requirements and affects the driver's observation of the instrument information. When the included angle α between the extending direction of the instrument 19 and the reference plane is less than this range, the instrument 19 is prone to reflection and affects the driver's observation of the instrument information. It can be understood that the included angle α between the extending direction of the instrument 19 and the reference plane can be 40°, 41°, 42°, etc.

[0060] As Figure , ​ and ​As shown, the vehicle body covering 14 further includes a spoiler assembly 144, and the spoiler assembly 144 is detachably connected to the covering main body 141. Specifically, the spoiler assembly 144 includes a bottom plate 1441 and a cover plate 1442, and an accommodation gap is formed between the bottom plate 1441 and the cover plate 1442. The lighting system 16 includes a decorative lamp 161, and at least a part of the decorative lamp 161 is located in the accommodation gap. The cover plate 1442 is made of a transparent material. When the decorative lamp 161 is turned on, the decorative lamp 161 can be observed through the cover plate 1442.

[0061] As an alternative embodiment, the decorative lamp 161 is disposed on the bottom plate 1441.

[0062] As another alternative embodiment, the decorative lamp 161 is disposed on the main frame 111. The bottom plate 1441 includes a through hole 1441a, and the decorative lamp 161 passes through the through hole 1441a. The decorative lamp 161 includes a lamp body 1611 and a connecting member 1612. The lamp body 1611 is connected to the main frame 111 through the connecting member 1612. The lamp body 1611 is located between the bottom plate 1441 and the cover plate 1442, and the connecting member 1612 is located on the other side of the bottom plate 1441 away from the lamp body 1611. When observed in the width direction of the vehicle frame 11, the connecting member 1612 overlaps with the bottom plate, that is, the connecting member cannot be observed. In this setting, the decorative lamp 161 does not expose the assembled connecting member, and the cover plate 1442 simultaneously functions as a spoiler and protects the decorative lamp 161.

[0063] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those of ordinary skill in the art will recognize that various improvements, additions, and substitutions are possible without departing from the scope and spirit of the present invention disclosed by the appended claims.

Claims

1. An electric two-wheeler, comprising: a frame, the frame including a main frame and a sub-frame; a body covering, the body covering at least partially covering the frame; a suspension assembly; a running system, the running system being connected to the frame through the suspension assembly; a power assembly, at least part of the power assembly being supported by the main frame; a seat bucket assembly, at least part of the seat bucket assembly being disposed on the main frame; wherein, the electric two-wheeler at least includes a first assembled state, a second assembled state, a third assembled state and a fourth assembled state, the sub-frame including at least one of a first extension frame, a second extension frame and a third extension frame, the first extension frame being used to add a seat, the second extension frame being used to cooperate with the main frame to extend the length of the seat bucket assembly, and the third extension frame being an armrest frame; when the first extension frame is installed on the electric two-wheeler, the electric two-wheeler is in the first assembled state; when the second extension frame is installed on the electric two-wheeler, the electric two-wheeler is in the second assembled state; when the third extension frame is installed on the electric two-wheeler, the electric two-wheeler is in the third assembled state; when the sub-frame is not installed on the electric two-wheeler, the electric two-wheeler is in the fourth assembled state.

2. The electric two-wheeler according to claim 1, characterized in that, The body covering includes at least one of a short tail assembly and a long tail assembly. When the short tail assembly is installed on the electric two-wheeler, the electric two-wheeler is in the first assembled state, the third assembled state or the fourth assembled state. When the long tail assembly is installed on the electric two-wheeler, the electric two-wheeler is in the second assembled state, the third assembled state or the fourth assembled state.

3. The electric two-wheeler according to claim 2, characterized in that, The seat bucket assembly includes at least one of a short seat cushion and a long seat cushion. The short seat cushion is at least partially disposed on the main frame. The short tail assembly is disposed below the short seat cushion. The short tail assembly is fixedly connected to the main frame. When observed in the height direction of the electric two-wheeler, the short tail assembly substantially overlaps with the short seat cushion; the short tail assembly is rotatably connected to the short seat cushion.

4. The electric two-wheeler according to claim 3, characterized in that, The long tail assembly is disposed below the long seat cushion. The long tail assembly is rotatably connected to the long seat cushion. At least part of the long tail assembly overlaps with the running system.

5. The electric two-wheeler according to claim 1, characterized in that, At least part of the first extension frame is disposed on the main frame. Defining a longitudinal plane perpendicular to the width direction of the electric two-wheeler, the projection of the first extension frame on the longitudinal plane along the width direction of the electric two-wheeler is substantially a triangle.

6. The electric two-wheeler according to claim 1, wherein, The main frame includes a left tube and a right tube. The frame further includes a footrest. The left tube and the right tube both extend substantially along the length direction of the frame. The footrest is detachably connected to the left tube and the right tube. A plane perpendicular to the width direction of the frame and passing through the center of the width of the frame is defined as the longitudinal central plane of the frame. The left tube and the right tube are both at least partially recessed towards the longitudinal central plane. The left tube is recessed towards the longitudinal plane to form an avoidance space, and at least a part of the footrest is located in the avoidance space.

7. The electric two-wheeler according to claim 6, characterized in that, The left tube includes an upper left tube. The right tube includes an upper right tube. The upper left tube includes an upper left straight section extending substantially along the front-rear direction of the frame and an upper left recessed section provided behind the upper left straight section and recessed towards the longitudinal central plane. The upper right tube includes an upper right straight section extending substantially along the front-rear direction of the frame and an upper right recessed section provided behind the upper left straight section and recessed towards the longitudinal central plane. The maximum distance between the upper left straight section and the upper right straight section is W1, and the distance between the upper left recessed section and the upper right recessed section is W2. The ratio range of W1 to W2 is 1.15 to 1. .

25.

8. The electric two-wheeler according to claim 7, characterized in that, The footrest is detachably arranged on the upper left recessed section and the upper right recessed section.

9. The electric two-wheeler according to claim 7, wherein The main frame further includes a connecting cross tube. The connecting cross tube is arranged between the upper left tube and the upper right tube. The connecting cross tube extends substantially along the width direction of the frame (11). At least a part of the sub-frame is located behind the connecting cross tube. The sub-frame is detachably connected to the connecting cross tube.

10. The electric two-wheeler according to claim 1, characterized in that, The first extension frame is made of metal.

Images