Electric two-wheeled vehicle

Abstract

The application discloses an electric two-wheeled vehicle, which comprises a frame, a vehicle body cover, a walking assembly, a motor assembly and a battery assembly, wherein the battery assembly is used for providing energy for the motor assembly; a containing space is formed between a main frame and a supporting frame, and the battery assembly is at least partially arranged in the containing space; the battery assembly comprises a battery compartment and a power battery; when the power battery is in an assembled state, the power battery is at least partially arranged in the battery compartment; an assembling assembly is further arranged between the battery compartment and the supporting frame; the battery compartment can be relatively rotated with the supporting frame through the assembling assembly; and the battery compartment can drive the power battery to be relatively rotated with the supporting frame. The arrangement mode can guarantee the stable connection between the battery and the frame during operation, and the battery can be rapidly disassembled, assembled or replaced when replacement and maintenance are required.

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle, more particularly to an electric two-wheeled vehicle. BACKGROUND

[0002] With the strong occupation of new energy forces in the market, various types of two-wheeled vehicles are gradually electrified. In addition to daily commuting electric bicycles, electric motorcycles and electric light motorcycles with play attributes are gradually electrified in some areas. Unlike electric bicycles, electric motorcycles and electric light motorcycles have higher requirements for the endurance, fixation and structural strength of battery assemblies. How to more quickly disassemble and replace the battery, and at the same time meet the above requirements while ensuring the installation strength of the battery on the electric two-wheeled vehicle is a problem that needs to be solved in the research and development of electric two-wheeled vehicles. SUMMARY

[0003] In order to solve the problems of the prior art, the purpose of the present application is to provide an electric two-wheeled vehicle with a battery assembly that is easy to disassemble and a stable connection between the frame and the battery assembly.

[0004] In order to achieve the above-mentioned objectives, the technical scheme adopted by the present application is as follows:

[0005] An electric two-wheeled vehicle includes a frame, the frame includes a main frame and a support frame arranged below the main frame, the main frame and the support frame are fixedly connected; a vehicle body cover, the vehicle body cover is at least partially arranged on the frame; a walking assembly, the walking assembly is at least partially arranged below the frame; a motor assembly, the motor assembly is used to drive the walking assembly; a battery assembly, the battery assembly is used to provide energy for the motor assembly; a receiving space is formed between the main frame and the support frame, the battery assembly is at least partially arranged in the receiving space; the battery assembly includes a battery compartment and a power battery, when the power battery is in an assembled state, the power battery is at least partially arranged in the battery compartment, an assembly assembly is further arranged between the battery compartment and the support frame, the battery compartment can be relatively rotated with the support frame through the assembly assembly, and the battery compartment can drive the power battery to rotate relative to the support frame.

[0006] Further, a longitudinal plane perpendicular to the width direction of the electric two-wheeled vehicle and passing through the width center of the electric two-wheeled vehicle is defined, the rotation axis of the assembly assembly extends substantially along the length direction of the electric two-wheeled vehicle and is located on the longitudinal plane.

[0007] Further, the battery compartment relative to the frame includes a storage state and an open state, when the battery compartment is in the storage state, the battery compartment is substantially located in the receiving space, when the battery compartment is in the open state, the battery compartment is at least partially located outside the receiving space, and when the battery compartment is in the open state, the power battery can be directly taken out from the battery compartment.

[0008] Further, the assembling assembly comprises a support plate fixedly connected with the battery compartment and a connecting plate fixedly connected with the support frame, the connecting plate is rotatable relative to the support plate, and an elastic member is arranged between the connecting plate and the support plate.

[0009] Further, the main frame comprises a vertical support extending along a height direction, and the main frame further comprises a fixing support arranged between the vertical support and the battery assembly, and the battery assembly is connected with the vertical support through the fixing support.

[0010] Further, a positioning assembly is further arranged between the fixing support and the battery assembly, the positioning assembly comprises a guide rail fixedly connected with the battery compartment and a positioning member connected with the fixing support, and the positioning member is arranged in the guide rail and is movable relative to the guide rail.

[0011] Further, the electric two-wheeled vehicle further comprises a locking device, the locking device comprises an executing assembly arranged at least partially between the battery compartment and the frame, and the locking assembly is capable of limiting the rotation of the battery compartment through the executing assembly.

[0012] Further, the frame further comprises an elastic support member, the main frame comprises a longitudinal support extending along a length direction, and when the power battery is in the assembling state and the battery compartment is in the storage state, the elastic support member is arranged at least partially between the battery assembly and the longitudinal support, and the elastic support member is capable of providing a pre-tightening force in the height direction between the battery assembly and the longitudinal support.

[0013] Further, the frame further comprises a side support for providing a supporting force in a stationary state of the electric two-wheeled vehicle, and the side support is arranged at one side of the electric two-wheeled vehicle; when the battery compartment is in the open state, the battery compartment faces away from the side support.

[0014] Further, the vehicle body cover comprises side guards distributed along a width direction, and the side guards at least partially overlap with the battery assembly when viewed along the width direction of the electric two-wheeled vehicle, and the side guards arranged at the side away from the side support are capable of being flipped synchronously with the battery compartment.

[0015] By arranging the battery compartment and the frame in a rotatable connection and using a lock to control the relative state between the battery compartment and the frame, the stable connection between the battery and the frame during operation can be ensured, and the battery can also be quickly disassembled, assembled or replaced in the case of replacement and maintenance; under this premise, the stability and strength of the connection between the battery assembly and the frame can also be ensured, and the structure of rapid disassembly does not weaken the connection strength of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the electric two-wheeled vehicle;

[0017] Figure 2A side view of the connection between the frame of the electric two-wheeled vehicle and the battery assembly and the motor assembly;

[0018] Figure 3 A perspective view of the connection between the frame of the electric two-wheeled vehicle and the battery assembly and the motor assembly;

[0019] Figure 4 A schematic view of the connection between the battery compartment and the frame in the open state and the storage state along the D direction in Figure 3

[0020] Figure 5 A schematic view of the connection between the battery compartment and the frame in the open state and the storage state along the D direction in Figure 3

[0021] Figure 6A A partial enlarged view of A in Figure 4

[0022] Figure 6B A partial enlarged view of B in Figure 5

[0023] Figure 7 An exploded view of the side guard and the battery assembly;

[0024] Figure 8 A front view of the electric two-wheeled vehicle with the side guard and the battery compartment in the open state. DETAILED DESCRIPTION

[0025] In order to clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following briefly introduces the drawings required to be used in the embodiments or prior art description. Obviously, the following description is only one embodiment of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0026] As shown in Figure 1 , the present application provides an electric two-wheeled vehicle 100, which comprises a frame 11, a vehicle body cover 12, a walking assembly 13, a battery assembly 14 (see Figure 2 ​​​​The battery assembly 14 and motor assembly 15 are mounted on and supported by the frame 11. The chassis 11 forms the basic framework of the electric two-wheeled vehicle 100. The chassis 14 and motor assembly 15 are both mounted on and supported by the frame 11. The running gear 13 is at least partially located below the frame 11 and rotatably connected to it. The vehicle body cover 12 at least partially covers the motor assembly 15 and battery assembly 14, providing protection for them to a certain extent. For ease of description, in this application, the forward-backward direction of the driver during normal driving is defined as the length direction of the electric two-wheeled vehicle 100, the left-right direction is defined as the width direction, and the up-down direction is defined as the height direction.

[0027] like Figure 2 As shown, the vehicle frame 11 includes a main frame 111 for supporting the overall vehicle structure and a support frame 112 disposed below the main frame 111. The support frame 112 is fixedly connected to the main frame 111 and forms a receiving space S1 between them. The battery assembly 14 and the motor assembly 15 are substantially disposed within this receiving space S1. The main frame 111 and the support frame 112 together provide support and protection for the motor assembly 15 and the battery assembly 14. Further, the main frame 111 also includes a longitudinal support 1111 extending along a substantially length direction and a vertical support 1112 extending substantially along a substantially height direction. Correspondingly, the support frame 112 also includes a longitudinal support frame 1121 extending substantially along a substantially length direction and a vertical support frame 1122 extending substantially along a substantially height direction. As an alternative implementation, the motor assembly 15 is disposed within the receiving space S1 and close to the vertical support 1112 and the longitudinal support frame 1121, and the motor assembly 15 is fixedly connected to the longitudinal support frame 1121 and / or the vertical support 1112. That is, the battery assembly 14 is disposed near the rearmost and lowest ends of the receiving space S1, and is positioned in front of the motor assembly 15. This arrangement effectively utilizes the irregular space between the vertical support 1112 and the longitudinal support frame 1121, and fully leverages the shape of the motor assembly 15. By placing the motor assembly 15 within this space, the compactness of the spatial layout is effectively enhanced, and a relatively regular-shaped area is formed or left empty within the receiving space S1 to accommodate the battery assembly 14.

[0028] like Figure 3 and Figure 4As shown, the battery assembly 14 includes a power battery 141 and a battery compartment 142 for housing and protecting the power battery 141. The battery compartment 142 is configured as a cavity with a shape substantially consistent with that of the power battery 141. As an alternative implementation, the power battery 141 in this application is substantially rectangular in structure; therefore, the battery compartment 142 in this application is substantially a rectangular cavity structure for housing the power battery 141. The battery compartment 142 is substantially located within the receiving space S1 in front of the motor assembly 15 and is at least partially fixedly connected to the longitudinal support frame 1121, which provides support for the battery compartment 142 and the power battery 141. The frame 11 also includes an assembly assembly 113, through which the battery compartment 142 is rotatably connected to the longitudinal support frame 1121. Specifically, the longitudinal support frame 1121 includes two support frames distributed along the width direction. The assembly assembly 113 is fixedly connected to the longitudinal support frame 1121 distributed along the width direction to ensure the stability of the fixed connection between the battery compartment 142 and the vehicle frame 11.

[0029] like Figure 3 As shown, the assembly assembly 113 includes a support plate 1131 fixedly connected to the longitudinal support frame 1121, a connecting plate 1132 fixedly connected to the battery compartment 142, and an elastic member 1133 disposed between the support plate 1131 and the connecting plate 1132. The connecting plate 1132 and the support plate 1131 are configured to rotate, and the elastic member 1133 enables a preload force to be formed between the connecting plate 1132 and the support plate 1131 in one direction. That is, when no pressure is applied to the connecting plate 1132, the connecting plate 1132 can rotate relative to the support plate 1131 under the action of the preload force of the elastic member 1133, thereby driving the battery compartment 142 to rotate. This configuration allows the battery compartment 142 to rotate relative to the longitudinal support frame 1121, meaning the opening of the battery compartment 142 can be rotated to a region free from interference from other components. This facilitates the assembly and replacement of the power battery 141. After assembly, the battery compartment 142 can be flipped back to its original connection position with the vehicle frame 11, ensuring a secure connection between the power battery 141 and the longitudinal support frame 1121. In other words, the battery compartment 142 has both a retracted and an open state relative to the vehicle frame 11. Specifically, the retracted state refers to the state where the battery compartment 142 does not flip relative to the vehicle frame 11; the battery compartment 142 must be in the retracted state while the vehicle is in operation. The open state refers to the state where the battery compartment 142 is flipped so that the power battery 141 can be removed from its interior without obstruction.

[0030] like Figure 3 and Figure 4As shown, in one optional implementation, the assembly component 113 is at least partially disposed between the longitudinal support frames 1121 distributed along the width direction. By appropriately positioning the assembly component 113, the rotation axis L1 between the connecting plate 1132 and the support plate 1131 extends substantially along the length direction of the electric two-wheeler 100 and is substantially parallel to the horizontal plane. This arrangement ensures that the battery compartment 142 can only be reversed relative to the left or right side of the electric two-wheeler 100. Understandably, for a two-wheeler, the left or right side has a large placement space on the vehicle, sufficient to accommodate the space occupied by the flipping of the battery compartment 142. Furthermore, a longitudinal plane P1 is defined, 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. In one optional implementation, the rotation axis L1 of the assembly component 113 is substantially disposed on the longitudinal plane P1. This design minimizes the angle required to rotate the battery compartment 142 to remove the power battery 141, given a fixed width and height. This effectively reduces the rotational amount required for the battery compartment 142 to change from a retracted to an open state. When the battery compartment 142 is open, the significant mass of the power battery 141 can cause a shift in the vehicle's center of gravity after the compartment is reversed. If this shift is not effectively controlled, it can lead to instability during battery removal, causing the vehicle to tip over and reducing user experience. Furthermore, the maximum travel distance for side-flipping is much greater than that for center-flipping. This design effectively saves space occupied by the battery assembly 14 in the height direction of the electric two-wheeler 100, achieving a compact spatial layout.

[0031] Understandably, in other embodiments, the most suitable disassembly position is selected according to the overall layout of the vehicle, and the position of the rotation axis L1 of the assembly assembly 113 can also be set to extend along other directions, or the rotation axis L1 of the assembly assembly 113 can also be set to form a certain angle with the horizontal plane, so that the opening of the battery compartment 142 faces the most suitable position when it is open.

[0032] like Figures 3 to 5 As shown, in order to make the connection between the battery compartment 142 and the frame 11 more stable, a fixed bracket 1113 is provided between the battery compartment 142 and the vertical battery support 1112, and a locking device 16 is also provided between the battery compartment 142 and the vertical support frame 1122. Through this arrangement, the battery compartment 142 is rigidly connected to the frame 11 in the entire length direction, so that the electric two-wheeled vehicle 100 avoids the force generated by the acceleration during the starting stage or the inertial force during braking, which would cause the battery assembly 14 to be violently displaced in the front and rear directions, resulting in a decrease in the connection strength between the battery assembly 14 and the frame 11, affecting the overall vehicle performance or even threatening driving safety.

[0033] Optionally, the fixed bracket 1113 and the vertical bracket 1112 are either fixedly connected or integrally formed, and the fixed bracket 1113 extends substantially along the length of the electric two-wheeler 100. A positioning assembly 114 is also provided between the fixed bracket 1113 and the battery compartment 142. The positioning assembly 114 includes a guide rail 1141 and a positioning element 1142. The positioning element 1142 can undergo relative displacement within the guide rail 1141 through friction or rolling, allowing phase position movement between the two opposing components while maintaining a fixed connection. In this application, the guide rail 1141 is fixedly connected to the battery compartment 142, and the positioning element 1142 is fixedly connected to the fixed bracket 1113. The guide rail 1141 is configured as an arc-shaped track, and the positioning element 1142 is at least partially located within this arc-shaped track and can move relative to the arc-shaped guide rail 1141. Understandably, the center of the arc-shaped guide rail 1141 is basically located on the rotation axis L1 of the assembly component 113, that is, the relative motion trajectory between the guide rail 1141 and the positioning component is the relative motion trajectory between the battery compartment 142 and the fixed bracket 1113 during rotation. This arrangement can avoid the inability of a rigid connection between the battery compartment 142 and the fixed bracket 1113 to adapt to the friction during the rotation of the battery compartment 142, and at the same time avoid wear on the battery compartment 142 or the fixed bracket 1113 caused by repeated opening and closing. Furthermore, the positioning component 114 can further restrict the motion trajectory, rotation angle and start and end positions of the rotation between the battery compartment 142 and the frame 11 based on the assembly component 113, ensuring the stability of the battery compartment 142 flipping mechanism and the controllability of the motion trajectory.

[0034] Furthermore, the mounting bracket 1113 is at least partially located above the motor assembly 15, and the motor assembly 15 is fixedly connected to the mounting bracket 1113. This arrangement not only allows the battery assembly 14 to form a stable rigid connection with the vertical bracket 1112 through the mounting bracket 1113, but also provides a support point for the upper end of the motor assembly 15, facilitating the accommodation and placement of the motor assembly 15, and making the connection between the motor assembly 15 and the frame 11 more stable.

[0035] like Figure 3 As shown, the locking device 16 includes an actuation component 161 and an operation component 162 (see...). Figure 2Optionally, the actuation component 161 is disposed between the battery assembly 14 and the vertical support frame 1122. Specifically, the actuation component 161 includes a locking member 1611 and a fixing member 1612. The locking member 1611 includes a locking tongue whose opening and closing state can be controlled by the operation component 162. The operation component 162 can control the locking tongue to control the connection state between the locking member 1611 and the fixing member 1612. The fixing member 1612 is disposed on and fixedly connected to the battery compartment 142, and the locking member 1611 is disposed on and fixedly connected to the vertical support frame. When the battery compartment 142 is in the storage state, the fixing member 1612 is at least partially located within the locking member 1611 and forms a fixed connection with the locking member 1611, ensuring that the battery compartment 142 cannot be flipped relative to the frame 11. When the power battery 141 needs to be disassembled or assembled, the locking tongue is operated accordingly by the operating component 162, so that the locking member 1611 and the fixing member 1612 are released from relative fixation, and the battery compartment 142 is ejected to one side of the electric two-wheeler 100 under the action of the elastic member 1133 in the assembly component 113. As can be seen from the above description, the actuating component 161 is located between the battery compartment 142 and the vertical support frame 1122, and together with the positioning component 114, it can limit the battery compartment 142 in the front and rear directions of the electric two-wheeler 100, and form a rigid connection between the battery compartment 142 and the frame 11 in the longitudinal direction, so as to avoid swaying or displacement in the longitudinal direction. Furthermore, the locking device 16, at least partially disposed between the battery compartment 142 and the vertical support frame 1122, can also control the state of the battery compartment 142 and the vehicle frame 11. Specifically, it pushes the open battery compartment 142 back into the receiving space S1 until the fixing member 1612 is at least partially located within the locking member 1611. The locking device 16 limits the width of the retracted battery compartment 142, keeping it in the retracted state. Furthermore, the operating component 162 is disposed on the body cover 12 located on the upper part of the vehicle, and is connected to the actuating component 161 via a cable 163, enabling control of the actuating component. The operating component 162 is at least partially disposed above the battery assembly 14, a layout that facilitates driver operation and makes the unlocking process more ergonomic.

[0036] Understandably, other components can be installed between the battery compartment 142 and the vertical support frame 1122 to achieve a rigid connection and support between the two. Alternatively, another positioning component 114 can be installed between the battery compartment 142 and the vertical support frame 1122 to achieve the above functions, with the actuation component 161 located in other parts of the electric two-wheeler 100. That is, the actuation component 161 only performs the locking function and does not provide support in the length direction. Correspondingly, the operation component 162 can also be installed in other parts of the electric two-wheeler 100 according to the user's needs. The locking tongue can also be controlled electronically between the operation component 162 and the actuation component 161.

[0037] like Figure 3 and Figure 5 As shown, the power battery 141 is housed within the battery compartment 142 and is electrically connected to other electrical components via a main cable 143, which is at least partially positioned above the battery assembly 14. To further limit and fix the battery assembly 14 in the height direction, an elastic support 115 is provided on the longitudinal support 1111 located above the battery assembly 14. When the battery compartment 142 is in the assembled state and the battery assembly 14 is located inside the battery compartment 142, the elastic support 115 is at least partially located between the power battery 141 and the longitudinal support 1111, providing an elastic preload between the power battery 141 and the longitudinal support 1111. This ensures that the battery assembly 14 is connected to the vehicle frame 11 in the height direction, preventing the power battery 141 from shifting relative to the battery compartment 142 under bumpy road conditions, thus avoiding damage to the power battery 141 or affecting driving safety. Specifically, the elastic support 115 includes a support frame 1151 and an elastic element 1152 disposed on the support frame 1151. When the battery assembly 14 is in the assembled state, the support frame 1151 abuts against the power battery 141 through the elastic element 1152, thereby limiting the height of the power battery 141 while preventing the support frame 1151, which has a large rigidity, from damaging the power battery 141. It can also adapt to power batteries 141 of different heights, and even if the power battery 141 of different heights is replaced, a stable connection between the battery assembly 14 and the support frame 1151 can still be achieved.

[0038] like Figure 6A and Figure 6BAs shown, after the power battery 141 is installed into the battery compartment 142, the power battery 141 will follow the battery compartment 142 to rotate to the storage state of the battery compartment 142, that is, the abutting state between the power battery 141 and the elastic support frame 1151 as described above. It can be understood that in order to maintain a stable abutting state between the power battery 141 and the elastic support 115 after the power battery 141 is in the assembled state, when the battery compartment 142 rotates to a certain preset angle, that is, before the battery compartment 142 is fully in the storage state, the elastic support 115 and the power battery 141 have already made contact. During the process of the battery compartment 142 continuing to rotate from the preset angle to the storage state, the upper end of the power battery 141 and the elastic support 115 are in a state of relative friction under a strong pre-tightening force, so as to switch the battery assembly 14 to the storage state and maintain the pre-tightening force between it and the elastic support 115. Based on this, in this application, the elastic member 1152 that contacts the power battery 141 is set as a roller structure. In the process of the battery compartment 142 continuing to flip from a preset angle to the storage state, the sliding friction between the power battery 141 and the elastic support member 115 is transformed into rolling friction, so that the battery compartment 142 containing the power battery 141 can be easily switched to the storage state, and the sliding friction can be effectively avoided from damaging the surface of the power battery 141.

[0039] like Figure 7 As shown, the body panel 12 of the electric two-wheeler 100, in addition to the main cover 121 disposed above the frame 11, also includes side guards 122 distributed along the width direction and substantially disposed on the sides of the electric two-wheeler 100. The side guards 122 are substantially distributed on both sides of the battery assembly 14 distributed along the width direction. Optionally, when viewed from the width direction of the electric two-wheeler 100, the side guards 122 and the battery assembly 14 are configured to at least partially overlap. This configuration can cover and protect the battery assembly 14 through the side guards 122, and further, it can also provide further restraint for the battery assembly 14. Even if the battery assembly 14 becomes loose due to the failure of the connecting parts under extreme operating conditions, the side guards 122 can still further restrain the battery assembly 14.

[0040] like Figure 8As shown, the electric two-wheeler 100 also includes a side stand 116 for supporting the vehicle in a stationary state. As an optional implementation, the flipping direction of the assembly component 113 is set to the opposite side to the side stand 116's orientation; that is, when the battery compartment 142 is open, it faces away from the side stand 116. In this application, the side stand 116 is located on the left side of the frame 11 and rotatably connected to it, so the battery compartment 142 flips to the right when open. This arrangement ensures a reasonable distribution of the vehicle's center of gravity when the battery compartment 142 is open, preventing the vehicle from tipping over due to instability. Furthermore, the side guard plate 122 on the right side can be fixedly connected to the battery compartment 142; that is, when the battery compartment 142 is open, the side guard plate 122 flips to the right along with the battery compartment 142. This arrangement makes opening and closing the battery compartment 142 more convenient, eliminating the need for other opening methods for the side guard plate 122. Understandably, in other embodiments, the opening direction of the battery compartment 142 may be set on other sides of the electric two-wheeler 100, depending on user needs or other requirements, as long as it enables quick disassembly and installation of the power battery 141.

[0041] Furthermore, to ensure the stable installation of the battery assembly 14, a flexible material is provided inside the battery compartment 142 to create an interference fit between the power battery 141 and the battery compartment 142. This ensures that after the power battery 141 and battery compartment 142 are assembled, the power battery 141 cannot shift or shake relative to the battery compartment 142, preventing impacts to the power battery 141 during riding and avoiding disconnection of the connection between the power battery 141 and the main cable 143. Based on the above description, it can be understood that the shape of the battery compartment 142 does not need to be completely identical to that of the power battery 141, as long as a stable connection between the power battery 141 and the battery compartment 142 is achieved. The battery compartment 142 also does not need to completely cover the power battery 141; it only needs to secure the power battery 141 and achieve contact with the vertical support frame 1122 and the vertical bracket 1112 respectively. That is, the specific shape of the battery compartment 142 can be varied according to different embodiments, as long as the above-mentioned positioning, placement, and flipping functions are achieved, all of which fall within the protection scope of this invention.

[0042] It should be noted that the elastic element in this application can be elastic rubber or an elastic mechanism such as a spring, as long as it can achieve buffering between components or provide preload.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. An electric two-wheeled vehicle, comprising, The vehicle frame includes a main frame and a support frame disposed below the main frame, wherein the main frame and the support frame are fixedly connected. A body panel, said body panel being at least partially disposed on the vehicle frame; A running gear, which is at least partially disposed under the vehicle frame; Motor assembly, the motor assembly being used to drive the walking assembly; A battery assembly for providing power to the motor assembly; Its features are, A receiving space is formed between the main frame and the supporting frame, and the battery assembly is at least partially disposed within the receiving space. The battery assembly includes a battery compartment and a power battery. When the power battery is in an assembled state, the power battery is at least partially disposed within the battery compartment. An assembly assembly is also provided between the battery compartment and the supporting frame. The battery compartment can rotate relative to the supporting frame through the assembly assembly, and the battery compartment can drive the power battery to rotate relative to the supporting frame. The battery compartment has a stowed state relative to the vehicle frame. When the battery compartment is in the stowed state, the battery compartment is basically located within the accommodating space. The vehicle frame also includes an elastic support member. The main vehicle frame includes a longitudinal support. When the power battery is in the assembled state and the battery compartment is in the stored state, the elastic support member is at least partially disposed between the battery assembly and the longitudinal support. The elastic support member can provide a preload force in the height direction between the battery assembly and the longitudinal support to restrict the rotation of the power battery. When the battery compartment rotates to a preset angle other than the retracted state, the elastic support and the power battery come into contact. As the battery compartment continues to rotate from the preset angle to the retracted state, the upper end of the power battery and the elastic support are in a state of relative friction under strong pre-tightening force. The direction in which the battery compartment continues to rotate from the preset angle to the storage state is defined as the storage direction. The elastic support is located above the rotation axis of the assembly and faces the storage direction. The distance between the contact area between the upper end surface of the power battery and the elastic support and the rotation axis of the assembly when the battery compartment is in the storage state is defined as the first distance. The distance between the contact area between the upper end surface of the power battery and the elastic support and the rotation axis of the assembly when the battery compartment is in the preset angle is defined as the second distance. The first distance is smaller than the second distance.

2. The electric two-wheeled vehicle according to claim 1, characterized in that, Define a longitudinal plane perpendicular to the width direction of the electric two-wheeler and passing through the center of the width of the electric two-wheeler, wherein the rotation axis of the assembly extends substantially along the length direction of the electric two-wheeler and is located on the longitudinal plane.

3. The electric two-wheeled vehicle according to claim 1, characterized in that, The battery compartment also includes an open state relative to the vehicle frame. When the battery compartment is in the open state, the battery compartment is at least partially located outside the receiving space, and the power battery can be directly removed from the battery compartment when the battery compartment is in the open state.

4. The electric two-wheeled vehicle according to claim 1, characterized in that, The assembly includes a support plate fixedly connected to the battery compartment and a connecting plate fixedly connected to the support frame. The connecting plate is rotatable relative to the support plate, and an elastic element is provided between the connecting plate and the support plate.

5. The electric two-wheeled vehicle according to claim 1, characterized in that, The main frame includes a vertical support extending substantially along the height direction, and the main frame also includes a fixed support disposed between the vertical support and the battery assembly, the battery assembly being connected to the vertical support via the fixed support.

6. The electric two-wheeled vehicle according to claim 5, characterized in that, A positioning component is also provided between the fixed bracket and the battery assembly. The positioning component includes a guide rail fixedly connected to the battery compartment and a positioning element connected to the fixed bracket. The positioning element is at least distributed within the guide rail and can move relative to the guide rail.

7. The electric two-wheeled vehicle according to claim 1, characterized in that, The electric two-wheeler also includes a locking device, which includes an actuating component at least partially disposed between the battery compartment and the frame, and the locking device is capable of restricting the rotation of the battery compartment through the actuating component.

8. The electric two-wheeled vehicle according to claim 1, characterized in that, The longitudinal support extends along the length of the main frame.

9. The electric two-wheeled vehicle according to claim 3, characterized in that, The frame also includes a side brace for providing support when the electric two-wheeler is stationary, the side brace being disposed on one side of the electric two-wheeler; when the battery compartment is in the open state, the battery compartment faces away from the side brace.

10. The electric two-wheeled vehicle according to claim 9, characterized in that, The vehicle body panel includes side panels distributed along the width direction. When viewed along the width direction of the electric two-wheeler, the side panels at least partially overlap with the battery assembly, and the side panels located on the side away from the side support are able to rotate synchronously with the battery compartment.

Images