Electric two-wheeled vehicle

Abstract

The utility model discloses an electric two-wheeled vehicle. The electric two-wheeled vehicle comprises a vehicle frame, a walking system, a rear bottom fork, an electric drive assembly and a power battery. The walking system comprises rear wheels; the electric drive assembly is in transmission connection with the rear wheel; the power battery is electrically connected with the electric drive assembly; the electric drive assembly comprises a shell, and the shell comprises a matching part; the rear fork comprises a first extending piece extending in the length direction of the electric two-wheeled vehicle, and the first extending piece comprises a connecting part. And the connecting part is detachably connected with the matching part. Through the arrangement, the universality of the electric drive assembly of the electric two-wheeled vehicle can be improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an electric two-wheeled vehicle. Background Art

[0002] Electric two-wheeled vehicles are vehicles that use power batteries as an auxiliary energy source. They typically include a frame, a running system, suspension components, an electric drive assembly, and a power battery. The suspension assembly includes a rear fork for connecting the rear wheel. In existing technology, the rear fork is typically integrally molded with the housing of the electric drive assembly, resulting in a complex structure. Furthermore, this integrally molded structure can only accommodate a single vehicle model. When the electric drive assembly needs to be installed on a different vehicle model, it must be completely redesigned and replaced, reducing its versatility.

[0003] Therefore, how to improve the versatility of the electric drive assembly is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In order to address the deficiencies of the prior art, the purpose of the present application is to provide an electric two-wheeled vehicle with a highly versatile electric drive assembly.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] An electric two-wheeled vehicle includes a frame, a running system, a rear fork, an electric drive assembly, and a power battery. The running system is at least partially located below the frame and includes a rear wheel. The rear fork connects the rear wheel to the frame. The electric drive assembly is supported by the frame and is transmission-connected to the rear wheel. The power battery is supported by the frame and electrically connected to the electric drive assembly. The electric drive assembly is detachably connected to the rear fork. The electric drive assembly includes a housing, which includes a mating portion. The rear fork includes a first extension member extending along the length of the frame, which includes a connecting portion. The connecting portion is detachably connected to the mating portion.

[0007] Furthermore, the rear fork includes a rotating portion rotatably connected to the frame and a second extending member extending along the width direction of the frame. The rotating portion and the second extending member are integrally formed or fixedly connected, and the second extending member is integrally formed or fixedly connected to the first extending member.

[0008] Furthermore, along the length direction of the frame, the second extension member is located between the first extension member and the rotating portion, and the first extension member is at least partially located between the second extension member and the outer shell.

[0009] Furthermore, the electric drive assembly also includes a reducer, which includes an output shaft fixedly connected to the rear wheel, and the axis of the output shaft is substantially parallel to the rotation axis of the rotating part.

[0010] Furthermore, two rotating portions are provided, one at each end of the second extension member, defining a longitudinal plane perpendicular to the width of the frame and substantially bisecting the rear wheel. The two rotating portions are substantially symmetrically arranged about the longitudinal plane. When viewed from the height of the frame, the connecting portion and the line connecting the two rotating portions form a triangular structure.

[0011] Furthermore, the first extension member is located on one side of the second extension member frame in the width direction.

[0012] Furthermore, the rear flat fork includes a reinforcing rib structure, which is located on the first extension member and the second extension member, and / or the reinforcing rib structure is located between the second extension member and the rotating portion.

[0013] Furthermore, the rear flat fork includes a first fastener and a second fastener, the first fastener is passed through the first extension member along a first preset direction and is fixedly connected to the shell, and the second fastener is passed through the first extension member along a second preset direction and is fixedly connected to the shell, and the first preset direction is different from the second preset direction.

[0014] Furthermore, the first preset direction is parallel to the width direction of the frame, and the second preset direction is parallel to the length direction of the frame.

[0015] The electric drive assembly further includes a drive motor, a controller, and a speed reducer. The drive motor is located within and supported by the housing. The controller is located within and supported by the housing and is electrically connected to the drive motor. The speed reducer is at least partially located within and supported by the housing and provides a transmission connection between the rear wheel and the drive motor.

[0016] The above-mentioned electric two-wheeled vehicle can make the shell and the rear fork detachably connected, so that the rear fork can be assembled with the shell according to the requirements of the vehicle model. There is no need to redesign the shell and the rear fork as a whole, so that the electric drive assembly can be assembled on different vehicle models, thereby improving the versatility of the electric drive assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of the electric two-wheeled vehicle of the present application;

[0018] Figure 2 A schematic diagram of the combination of the frame, electric drive assembly, power battery and rear wheel of the electric two-wheeled vehicle of the present application;

[0019] Figure 3 A partial structural cross-sectional view of the rear fork and electric drive assembly of the electric two-wheeled vehicle of the present application;

[0020] Figure 4 This is a schematic diagram of the exploded structure of the rear flat fork and electric drive assembly of the electric two-wheeled vehicle of the present application. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the specific implementation of the present application will be clearly and completely described below in conjunction with the drawings in the implementation of the present application.

[0022] It should be noted that the words "first", "second" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but rather indicate the presence of at least one. "Multiple" or "several" means at least two. Unless otherwise specified, words such as "front", "back", "left", "right", "bottom" and / or "top" are used for ease of description only and are not limited to one position or one spatial orientation. Words such as "include" or "comprising" and similar terms mean that the elements or objects appearing before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Words such as "connected" or "connected" and similar terms are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.

[0023] As used in this specification and the appended claims, the singular forms "a," "an," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0024] like Figure 1 and Figure 2 As shown, the present application provides an electric two-wheeled vehicle 100, which includes a frame 11, a body cover 12, a running system 13, a suspension component 14, an electric drive assembly 15, a power battery 16, a seat component 17 and an electrical component 18.

[0025] In order to clearly illustrate the technical solution of this application, the front, rear, left, right, top and bottom are also defined as shown in the figure. In this application, the length direction of the frame 11 refers to Figure 1 The front-to-back direction in the vehicle frame 11 refers to the width direction of the vehicle frame 11. Figure 1 The left and right directions in the figure, the height direction of the frame 11 refers to Figure 1 The up and down directions in .

[0026] The frame 11 serves as the basic framework of the electric two-wheeled vehicle 100 and is used to support the body cover 12, the running system 13, the suspension assembly 14, the electric drive assembly 15, the power battery 16, the seat assembly 17, and the electrical assembly 18. The body cover 12 is at least partially located on and connected to the frame 11, so that the body cover 12 can protect the internal components of the electric two-wheeled vehicle 100. The running system 13 is at least partially located below the frame 11 and is used to drive the electric two-wheeled vehicle 100. The suspension assembly 14 connects the running system 13 to the frame 11. The electric drive assembly 15 is supported by the frame 11 and is in transmission connection with the running system 13. The electric drive assembly 15 is used to provide power to the running system 13 so that the running system 13 drives the electric two-wheeled vehicle 100. The power battery 16 is supported by the vehicle frame 11 and electrically connected to the electric drive assembly 15. The power battery 16 is used to provide electrical energy to the electric drive assembly 15, enabling the electric drive assembly 15 to drive the travel system 13. The electrical component 18 is also supported by the vehicle frame 11 and is at least partially disposed on the vehicle body panel 12 or the vehicle frame 11. The electrical component 18 is used to display driving data of the electric two-wheeled vehicle 100 and control the operation of the electric two-wheeled vehicle 100. The seat assembly 17 is also supported by the vehicle frame 11 and is used to support the driver and / or passenger.

[0027] like Figure 2 and Figure 3 As shown, as an embodiment, the travel system 13 includes a rear wheel 131, and the electric drive assembly 15 is in transmission connection with the rear wheel 131, so that the electric drive assembly 15 can drive the rear wheel 131 to rotate, thereby allowing the rear wheel 131 to drive the electric two-wheeled vehicle 100 to travel. The suspension assembly 14 includes a rear fork 141, which connects the rear wheel 131 to the frame 11.

[0028] It should be noted that in the present application, the electric drive assembly 15 is connected to the rear wheel 131 so that the electric drive assembly 15 drives the rear wheel 131 to rotate, and the electric drive assembly 15 is also connected to the rear fork 141 so that the rear wheel 131 is connected to the rear fork 141 through the electric drive assembly 15, and then connected to the frame 11 through the rear fork 141, so that the rear wheel 131 is connected to the frame 11.

[0029] The electric drive assembly 15 includes a housing 151, a drive motor 152, a controller 153, and a reducer 154. Specifically, the housing 151 serves as the basic frame of the electric drive assembly 15, and is used to support the drive motor 152, the controller 153, and the reducer 154. The drive motor 152 is located in the housing 151 and supported by the housing 151. The drive motor 152 is connected to the reducer 154 in a transmission manner. The drive motor 152 is used to provide power to the reducer 154 so that the reducer 154 rotates. The controller 153 is located in the housing 151 and supported by the housing 151. The controller 153 is electrically connected to the drive motor 152. The controller 153 is used to adjust the output power of the drive motor 152. The reducer 154 is at least partially located within the housing 151 and supported by the housing 151, and the reducer 154 drives the rear wheel 131 to the drive motor 152. The reducer 154 is used to increase the output torque of the electric drive assembly 15, thereby increasing the power of the electric drive assembly 15 to drive the rear wheel 131 to rotate.

[0030] Specifically, the housing 151 is detachably connected to the rear fork 141. This arrangement allows the housing 151 and the rear fork 141 to be two independent components. When the electric drive assembly 15 needs to be installed on a different vehicle model, only the rear fork 141 that is compatible with the vehicle model needs to be replaced, eliminating the need to replace the housing 151 and the rear fork 141 as a whole. This helps improve the versatility of the electric drive assembly 15.

[0031] In addition, the independently arranged housing 151 and rear fork 141 can reduce the structural complexity of the housing 151 and the rear fork 141, thereby helping to reduce the difficulty of processing the housing 151 and the rear fork 141, and further helping to reduce the production cost of the electric two-wheeled vehicle 100.

[0032] More specifically, the housing 151 includes a mating portion 1511, which is used to connect the housing 151 to the rear fork 141. The rear fork 141 includes a first extension member 1411, which extends along the length of the frame 11. The first extension member 1411 includes a connecting portion 1411a, which is used to connect the rear fork 141 to the housing 151. The connecting portion 1411a and the mating portion 1511 are detachably connected. With this arrangement, the rear fork 141 and the housing 151 can be assembled and disassembled by assembling and disassembling the connecting portion 1411a and the mating portion 1511, thereby facilitating the assembly of rear forks 141 of different sizes onto the housing 151. This allows the electric drive assembly 15 to adapt to different models of electric two-wheeled vehicles 100 by replacing rear forks 141 of different sizes, thereby improving the versatility of the electric drive assembly 15.

[0033] In addition, since the first extension member 1411 extends along the length of the frame 11, by replacing the rear fork 141 of different sizes, the position of the electric drive assembly 15 in the length direction of the frame 11 can be adjusted by adjusting the size of the first extension member 1411 in the length direction of the frame 11, thereby facilitating the electric drive assembly 15 to adapt to vehicle models with different sizes in the length direction of the frame 11.

[0034] In one embodiment, the rear fork 141 includes a rotating portion 1412 and a second extension 1413. The rotating portion 1412 is rotatably connected to the frame 11, and the second extension 1413 extends along the width of the frame 11. This arrangement allows the position of the electric drive assembly 15 along the width of the frame 11 to be adjusted by adjusting the width of the second extension 1413, thereby facilitating the electric drive assembly 15's adaptability to vehicle models with varying widths of the frame 11.

[0035] Specifically, the rotating portion 1412 is integrally formed with or fixedly connected to the second extension member 1413. This configuration can improve the connection stability between the rotating portion 1412 and the second extension member 1413, thereby facilitating improved connection stability between the rear fork 141 and the bicycle frame 11.

[0036] More specifically, the second extension member 1413 is integrally formed with or fixedly connected to the first extension member 1411. This arrangement can improve the connection strength between the second extension member 1413 and the first extension member 1411, thereby improving the overall strength of the rear fork 141 and further improving the stability of the connection between the rear wheel 131 and the electric drive assembly 15 and the frame 11 through the rear fork 141.

[0037] In addition, through the above-mentioned arrangement, the rear fork 141 can adjust the size of the rear fork 141 in the length direction of the frame 11 through the first extension piece 1411. At the same time, the rear fork 141 can adjust the size of the rear fork 141 in the width direction of the frame 11 through the second extension piece 1413 to adjust the position of the electric drive assembly 15 in the length direction and the width direction of the frame 11, so that the electric drive assembly 15 can adapt to vehicle models with different sizes in the length direction and the width direction of the frame 11, thereby further improving the versatility of the electric drive assembly 15.

[0038] As an optional implementation, along the length of the frame 11, the second extension member 1413 is located between the first extension member 1411 and the rotating portion 1412, and the first extension member 1411 is at least partially located between the second extension member 1413 and the housing 151. In some embodiments, the rotating portion 1412 is located in front of the second extension member 1413, and the first extension member 1411 is at least partially located behind the second extension member 1413.

[0039] As an embodiment, the reducer 154 includes an output shaft 1541 , which is fixedly connected to the rear wheel 131 . The output shaft 1541 is used to output power to the rear wheel 131 , so that the reducer 154 drives the rear wheel 131 to rotate.

[0040] Specifically, the axis of the output shaft 1541 is substantially parallel to the rotation axis 1412a of the rotating portion 1412. This arrangement prevents the rear wheel 131 from tilting relative to the frame 11 due to the axis of the output shaft 1541 not being parallel to the rotation axis 1412a of the rotating portion 1412, thereby preventing the electric two-wheeled vehicle 100 from deflecting when driven by the rear wheel 131, thereby improving the driving stability of the electric two-wheeled vehicle 100.

[0041] In one embodiment, two rotating portions 1412 are provided, and are located at both ends of the second extension member 1413 along the width direction of the frame 11. This arrangement of two rotating portions 1412 helps improve the connection stability between the rear fork 141 and the frame 11, thereby improving the connection stability between the rear wheel 131 and the frame 11.

[0042] Specifically, a longitudinal plane 101 perpendicular to the width direction of the frame 11 and substantially bisecting the rear wheel 131 is defined, and the two rotating parts 1412 are substantially symmetrically arranged about the longitudinal plane 101. Specifically, the walking system 13 includes a front wheel 132 (refer to Figure 1 ), and the front wheel 132 is used to control the steering of the electric two-wheeled vehicle 100. With this arrangement, when viewed along the length of the frame 11, the front wheel 132 and the rear wheel 131 can substantially overlap, thereby preventing the electric two-wheeled vehicle 100 from swaying left and right during travel due to the rear wheel 131 and the front wheel 132 not being in the substantially overlapping state in the length of the frame 11, thereby improving the driving stability of the electric two-wheeled vehicle 100.

[0043] In this embodiment, when viewed from the height of the frame 11, the connecting portion 1411a and the two rotating portions 1412 form a triangular structure. This arrangement provides greater stability for the connecting portion 1411a and the two rotating portions 1412, thereby improving the stability of the rear fork 141.

[0044] In one embodiment, the first extension member 1411 is located to one side of the second extension member 1413 along the width direction of the frame 11. In some embodiments, the first extension member 1411 is located to the left of the second extension member 1413 along the width direction of the frame 11. This arrangement prevents the second extension member 1413 from interfering with other components of the electric two-wheeled vehicle 100, thereby improving space utilization at the rear fork 141.

[0045] It should be noted that, along the width direction of the frame 11 , the first extension member 1411 may also be located on the right side of the second extension member 1413 . Therefore, the present application does not limit the installation position of the first extension member 1411 on the second extension member 1413 .

[0046] like Figure 4 As shown, as one embodiment, the rear fork 141 includes a reinforcing rib structure 1414, which is used to increase the structural strength of the rear fork 141. Specifically, the reinforcing rib structure 1414 is located on the first extension member 1411 and the second extension member 1413, and / or between the second extension member 1413 and the rotating portion 1412. This configuration improves the structural strength of the rear fork 141 through the reinforcing rib structure 1414, thereby facilitating improved connection stability between the rear fork 141 and the frame 11, and also facilitating improved connection stability between the rear fork 141 and the electric drive assembly 15, thereby facilitating improved connection stability between the electric drive assembly 15 and the frame 11 via the rear fork 141.

[0047] In addition, the reinforcing rib structure 1414 can reduce the thickness of the rear fork 141 while ensuring the structural strength of the rear fork 141, which is beneficial to reducing the weight of the rear fork 141, thereby achieving lightweight rear fork 141, and further beneficial to reducing the energy consumption of the electric two-wheeled vehicle 100.

[0048] It should be noted that the present application does not impose any restrictions on the location of the reinforcing rib structure 1414 on the rear fork 141 , as long as the structural strength requirements of the rear fork 141 are met.

[0049] As an embodiment, the rear fork 141 includes a first fastener 1415 and a second fastener 1416. Specifically, the first fastener 1415 is provided through the first extension member 1411 along the first preset direction 102 and is fixedly connected to the housing 151, and the second fastener 1416 is provided through the first extension member 1411 along the second preset direction 103 and is fixedly connected to the housing 151. In some embodiments, the first fastener 1415 and the second fastener 1416 are both screws. With this arrangement, the rear fork 141 and the housing 151 can be fixedly connected by screws, which is beneficial to improving the connection stability between the rear fork 141 and the housing 151. In addition, the screws also facilitate the disassembly and assembly of the rear fork 141 and the housing 151, thereby facilitating the replacement of the rear fork 141 that can adapt to different vehicle models, thereby improving the versatility of the electric drive assembly 15.

[0050] More specifically, the first predetermined direction 102 is different from the second predetermined direction 103. This arrangement allows the first fastener 1415 and the second fastener 1416 to connect the rear fork 141 to the housing 151 from different directions, thereby improving the impact resistance of the rear fork 141 and the housing 151 in different directions, thereby facilitating improved connection stability between the rear fork 141 and the housing 151.

[0051] As an optional implementation, the first predetermined direction 102 is parallel to the width direction of the frame 11, and the second predetermined direction 103 is parallel to the length direction of the frame 11. With this arrangement, the first fastener 1415 can increase the strength of the rear fork 141 and the housing 151 in the width direction of the frame 11, while the second fastener 1416 can increase the strength of the rear fork 141 and the housing 151 in the length direction of the frame 11, thereby facilitating improved overall strength of the rear fork 141 and the housing 151.

[0052] It should be noted that the present application does not limit the orientations of the first preset direction 102 and the second preset direction 103 , and it only requires that the first preset direction 102 is different from the second preset direction 103 .

[0053] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims appended to this application.

Claims

1. An electric two-wheeled vehicle comprising: Frame; a running system, the running system including a rear wheel at least partially located below the frame; a rear fork connecting the rear wheel to the frame; An electric drive assembly, the electric drive assembly being supported by the vehicle frame and drivingly connected to the rear wheel; a power battery, the power battery being supported by the vehicle frame and electrically connected to the electric drive assembly; It is characterized by: The electric drive assembly includes a housing, the housing includes a mating portion, the rear fork includes a first extension member extending along the length direction of the frame, the first extension member includes a connecting portion, and the connecting portion is detachably connected to the mating portion.

2. The electric two-wheeled vehicle according to claim 1, characterized in that: The rear fork includes a rotating portion rotatably connected to the frame and a second extending member extending along the width direction of the frame. The rotating portion and the second extending member are integrally formed or fixedly connected, and the second extending member is integrally formed or fixedly connected to the first extending member.

3. The electric two-wheeled vehicle according to claim 2, characterized in that: Along the length direction of the frame, the second extension member is located between the first extension member and the rotating portion, and the first extension member is at least partially located between the second extension member and the housing.

4. The electric two-wheeled vehicle according to claim 2, characterized in that: The electric drive assembly further includes a reducer, which includes an output shaft fixedly connected to the rear wheel, and an axis of the output shaft is substantially parallel to the rotation axis of the rotating part.

5. The electric two-wheeled vehicle according to claim 2, characterized in that: There are two rotating parts, each located at two ends of the second extension member, defining a longitudinal plane perpendicular to the width direction of the frame and substantially bisecting the rear wheel, and the two rotating parts are substantially symmetrically arranged with respect to the longitudinal plane; When viewed from the height direction of the vehicle frame, the connecting portion and the connecting line of the two rotating parts form a triangular structure.

6. The electric two-wheeled vehicle according to claim 2, characterized in that: The first extending member is located on one side of the second extending member along the width direction of the vehicle frame.

7. The electric two-wheeled vehicle according to claim 2, characterized in that: The rear flat fork includes a reinforcing rib structure, which is located on the first extension member and the second extension member, and / or the reinforcing rib structure is located between the second extension member and the rotating portion.

8. The electric two-wheeled vehicle according to claim 1, characterized in that: The rear flat fork includes a first fastener and a second fastener, the first fastener is passed through the first extension member along a first preset direction and is fixedly connected to the shell, the second fastener is passed through the first extension member along a second preset direction and is fixedly connected to the shell, and the first preset direction is different from the second preset direction.

9. The electric two-wheeled vehicle according to claim 8, characterized in that: The first preset direction is parallel to the width direction of the frame, and the second preset direction is parallel to the length direction of the frame.

10. The electric two-wheeled vehicle according to claim 1, characterized in that: The electric drive assembly further includes: a drive motor, the drive motor being located in the housing and supported by the housing; a controller, the controller being located in and supported by the housing, the controller being electrically connected to the drive motor; A reducer is at least partially located in the housing and supported by the housing, and the reducer transmits power to connect the rear wheel to the drive motor.

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