Electric two-wheeled vehicle

Abstract

The application discloses an electric two-wheeled vehicle, which comprises a frame, a seat support structure and a seat cushion, the seat support structure is installed on the frame, the seat cushion is supported by the seat support structure, the seat support structure comprises a front connecting part and a rear connecting part, the front connecting part is connected with the frame through at least one front connecting piece, the rear connecting part is connected with the frame through at least one rear connecting piece, the total number of the front connecting pieces and the rear connecting pieces is not less than three, and the front connecting part is located below and in front of the rear connecting part in the width direction of the frame. In this way, the seat support structure can be stably supported on the frame, and the seat support structure can be conveniently disassembled relative to the frame.

Description

Technical Field

[0001] This application relates to the field of two-wheeled vehicles, and more particularly to an electric two-wheeled vehicle. Background Technology

[0002] Electric two-wheeled vehicles are two-wheeled vehicles that can be moved by electric power, and generally include electric motorcycles and electric bicycles.

[0003] An electric two-wheeler consists of a frame, a seat, and an under-seat support structure. The under-seat support structure is mounted on the frame and supports the seat. When the under-seat support structure needs to be disassembled for maintenance, the connection between the under-seat support structure and the frame is relatively complex, making disassembly and assembly inconvenient. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this application is to provide an electric two-wheeled vehicle whose under-seat support structure is relatively easy to disassemble and assemble compared to the frame.

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

[0006] This application provides an electric two-wheeled vehicle, which includes a frame, a seat support structure, and a seat cushion. The seat support structure is mounted on the frame, and the seat cushion is supported by the seat support structure. The seat support structure includes a front connecting part and a rear connecting part. The front connecting part is connected to the frame by at least one front connecting member, and the rear connecting part is connected to the frame by at least one rear connecting member. The total number of front connecting members and rear connecting members is not less than three. When viewed along the width direction of the frame, the front connecting part is located in front of and below the rear connecting part.

[0007] Furthermore, a plurality of rear connectors are provided between the rear connector and the frame, and the plurality of rear connectors are arranged along the width direction of the frame; a front connector is provided between the front connector and the frame; or, a plurality of front connectors are provided between the front connector and the frame, and the plurality of front connectors are arranged along the width direction of the frame, wherein the ratio of the distance between the two farthest front connectors to the distance between the two farthest rear connectors along the width direction of the frame ranges from 0.05 to 0.21.

[0008] Furthermore, the front connector is detached and removed from the frame and the front connector in an upward direction; the rear connector is detached and removed from the frame and the rear connector in an upward direction.

[0009] Furthermore, the bottom of the seat cushion is provided with multiple support parts. Along the length of the frame, the foremost support part is the first support part, and the rearmost support part is the second support part. The first support part is supported by the under-seat support structure, and the second support part is supported by the frame. Viewed from above, the first support part is located in front of the front connector, and the second support part is located behind the front connector.

[0010] Furthermore, the first support is rotatably connected to the under-seat support structure, and the distance between the rotation center line of the first support and the center of the front connector along the length of the frame is defined as the first distance; the frame includes a rear crossbeam, and the second support is a protruding structure that abuts against the upper surface of the rear crossbeam, and the distance between the center of the second support and the center of the front connector along the length of the frame is defined as the second distance; the ratio of the first distance to the second distance is in the range of 0.09 to 0.51.

[0011] Furthermore, the under-seat support structure also includes a storage frame with a perforated hole running through the height of the frame. When viewed along the height of the frame, the front connector is located within the area covered by the perforated hole.

[0012] Furthermore, the electric two-wheeler also includes a power battery, which is housed in a storage compartment.

[0013] Furthermore, the frame includes a front frame and a rear frame, the front frame and the rear frame are assembled and connected, the front connecting part is connected to the front frame, and the rear connecting part is connected to the rear frame.

[0014] Furthermore, the plane passing through the center of the frame width and perpendicular to the frame width direction is defined as the longitudinal reference plane; multiple rear connecting parts are provided, and each is connected to a rear connecting piece. The rear end of the rear connecting part is connected to the rear connecting piece. When viewed from above, the distance between the front end of the rear connecting part and the longitudinal reference plane is smaller than the distance between the rear end of the rear connecting part and the longitudinal reference plane.

[0015] Furthermore, the front connecting part is basically U-shaped, and the bottom of the front connecting part is basically parallel to the width direction of the frame. The frame includes a front crossbeam, which extends at least partially along the width direction of the frame. The bottom of the front connecting part is attached to the portion of the front crossbeam that extends along the width direction of the frame and is connected to the front crossbeam through a front connector. The front connecting part has two upper ends, and the distance between the two upper ends of the front connecting part is greater than the length of the bottom of the front connecting part along the width direction of the frame.

[0016] The electric two-wheeled vehicle provided in this application achieves a stable connection between the seat support structure and the frame through only a set of front connectors located at the lower front and a set of rear connectors located at the upper rear. This allows the seat support structure to be easily disassembled and assembled relative to the frame while ensuring a stable connection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an electric two-wheeled vehicle according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the vehicle frame, seat cushion, and under-seat support structure in the embodiments of this application;

[0019] Figure 3This is a schematic diagram of another state of the vehicle frame, seat cushion, and under-seat support structure in the embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the frame and under-seat support structure in the embodiments of this application;

[0021] Figure 5 for Figure 3 A schematic diagram of the frame, seat, and under-seat support structure from a top-down view. Detailed Implementation

[0022] The present application will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present application. Any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present application.

[0023] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, terms such as "front and back," "left and right," "up and down," and similar terms are for illustrative purposes only and are not limited to a single location or spatial orientation. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0024] refer to Figure 1 and Figure 2 This application provides an electric two-wheeled vehicle 100, which includes a frame 11, a seat support structure 12 and a seat cushion 13. The seat support structure 12 is mounted on the frame 11 and the seat cushion 13 is supported by the seat support structure 12.

[0025] To clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The electric two-wheeled vehicle 100 shown has front-to-back, left-to-right, and up-down directions. It should be noted that the front-to-back, left-to-right, and up-down directions in this article refer to the directions of the electric two-wheeled vehicle 100 when it is on a horizontal road. In the following description of the technical solution of this application, the length direction of the frame 11 is parallel to the front-to-back direction of the electric two-wheeled vehicle 100, the width direction of the frame 11 is parallel to the left-to-right direction of the electric two-wheeled vehicle 100, and the height direction of the frame 11 is parallel to the up-down direction of the electric two-wheeled vehicle 100.

[0026] refer to Figure 2 and Figure 3The frame 11 includes a front frame 111, a rear frame 112, a front crossbeam 113, and a rear crossbeam 114. The front frame 111 is basically composed of two beams arranged along the width of the frame 11, and the front crossbeam 113 is fixed between the two beams of the front frame 111. The rear frame 112 is also basically composed of two beams arranged along the width of the frame 11, and the rear crossbeam 114 is fixed between the two beams of the rear frame 112. The front frame 111 and the rear frame 112 are assembled and connected. Optionally, the beams of the front frame 111 and the rear frame 112 are both tubular, and the beams of the rear frame 112 are inserted into the beams of the front frame 111 and fixed and connected by bolts or welding. The front crossbeam 113 is located in front of and below the rear crossbeam 114. This arrangement allows the under-seat support structure 12 to enhance the assembly stability of the front frame 111 and the rear frame 112.

[0027] The under-seat support structure 12 includes a storage frame 121, a front connecting portion 122, and a rear connecting portion 123. Both the front connecting portion 122 and the rear connecting portion 123 are connected to the storage frame 121 and can optionally be integrally formed with the storage frame 121 or optionally installed on the storage frame 121. In one embodiment, the front connecting portion 122 is located below the storage frame 121, and the rear connecting portion 123 is located behind the storage frame 121.

[0028] The front connecting part 122 is connected to the front crossbeam 113 via at least one front connecting member 124, and the rear connecting part 123 is connected to the rear crossbeam 114 via at least one rear connecting member 125. The total number of front connecting members 124 and rear connecting members 125 is not less than three. Viewed along the width direction of the frame 11, the front connecting part 122 is located in front of and below the rear connecting part 123. This arrangement ensures that the under-seat support structure 12 is stably supported on the frame 11, and also makes it easy to assemble and disassemble the under-seat support structure 12 relative to the frame 11.

[0029] The plane passing through the center of the width of the frame 11 and perpendicular to the width direction of the frame 11 is defined as the longitudinal reference plane 101.

[0030] In one embodiment, multiple rear connectors 125 are provided, arranged along the width direction of the frame 11 and substantially symmetrical along the longitudinal reference plane 101. Multiple front connectors 124 are also provided, arranged along the width direction of the frame 11 and substantially symmetrical along the longitudinal reference plane 101. Along the width direction of the frame 11, the ratio of the distance W1 between the two furthest front connectors 124 to the distance W2 between the two furthest rear connectors 125 ranges from 0.05 to 0.21 (see...). Figure 5Furthermore, the ratio of the aforementioned spacing ranges from 0.10 to 0.16, and even further, the ratio of the aforementioned spacing ranges from 0.12 to 0.14. The value of the aforementioned spacing can be any of the following values ​​or a value within the range of any two values: 0.05, 0.08, 0.10, 0.12, 0.13, 0.14, 0.15, 0.16, 0.18, 0.21. In one specific embodiment, two rear connectors 125 and two front connectors 124 are provided. It is worth noting that when disassembling and assembling the under-seat support structure 12, the personnel usually operate on the front connector 124 and the rear connector 125 from top to bottom. Since the rear connector 125 is located at a high position, it can be seen by opening the seat cushion 13. There are not many other parts obstructing the view of the rear connector 125, so the personnel can easily reach it and disassemble or assemble it. Even if the distance between the two rear connectors 125 is large, it does not affect the disassembly or assembly. In fact, the large distance between the two rear connectors 125 helps to improve the connection stability between the under-seat support structure 12 and the frame 11. However, because the front connector 124 is located at a low position, that is, at a deeper position, its top is usually obstructed by other parts. After opening the seat cushion 13, it is often not easy to see the rear connector 125. The above arrangement, by centrally arranging the various front connectors 124, makes it convenient for the personnel to centrally disassemble and assemble the front connectors 124.

[0031] In another embodiment, there are multiple rear connectors 125, which are arranged along the width direction of the frame 11 and are substantially symmetrical along the longitudinal reference plane 101. There is one front connector 124, which is located at the longitudinal reference plane 101 and is substantially symmetrical along the longitudinal reference plane 101.

[0032] Both the front connector 124 and the rear connector 125 can be bolts; in other embodiments, they can also be other components with connecting functions. The front connector 124 faces upwards relative to the frame 11 and the front connecting part 122 for disassembly and removal. The rear connector 125 also faces upwards relative to the frame 11 and the rear connecting part 123 for disassembly and removal. This arrangement allows the installer to insert the front connector 124 and the rear connector 125 into their corresponding installation positions from top to bottom and lock them by screwing or other means. Furthermore, after releasing the lock, the installer can remove the front connector 124 and the rear connector 125 from bottom to top, making it relatively easy for the installer to disassemble and assemble the front connector 124 and the rear connector 125. The storage frame 121 has a through-hole 1211 extending along the height direction of the frame 11. When viewed along the height direction of the frame 11, the front connector 124 is located within the area covered by the through-hole 1211. Specifically, the storage frame 121 is fixed by multiple strip-shaped sheet metal parts, with a large gap between adjacent sheet metal parts, and a perforated hole 1211 is located in one of these gaps. Because of this perforated hole 1211, the disassembly and assembly tools are less likely to be interfered with by the storage frame 121 when the connecting parts 124 are being disassembled or assembled, and the perforated hole 1211 provides better operating space for the disassembly and assembly operations. In one embodiment, the electric two-wheeled vehicle 100 also includes a power battery 14, which is housed within the storage frame 121.

[0033] In one embodiment, the front connecting portion 122 is substantially U-shaped, with its bottom generally parallel to the width direction of the frame 11. At least a portion of the front crossbeam 113 extends along the width direction of the frame 11. The bottom of the front connecting portion 122 is attached to the portion of the front crossbeam 113 extending along the width direction of the frame 11 and is connected to the front crossbeam 113 via a front connector 124. The front connecting portion 122 has two upper ends, and the distance between the two upper ends is greater than the length of the bottom of the front connecting portion 122 along the width direction of the frame 11. That is, the distance between the upper openings of the U-shaped structure of the front connecting portion 122 is greater than the distance between the bottom openings. This arrangement allows the front connecting portion 122 to support a larger area of ​​the bottom of the storage frame 121, avoiding overly concentrated support points and facilitating stable support. Furthermore, the bottom of the front connecting portion 122 occupies a small area in the width direction, making it less likely to interfere with the arrangement of other components within the frame 11.

[0034] The distance between the two upper ends of the front connecting part 122 is less than the width of the storage frame 121, that is, when viewed from above, the front connecting part 122 is completely within the range defined by the outer contour of the storage frame 121.

[0035] refer to Figure 4 and Figure 5In one embodiment, two rear connecting portions 123 are provided, and each is connected to a rear connecting member 125. The rear connecting portion 123 is generally inverted L-shaped, with its front end connected to the storage frame 121 and its rear end connected to the rear crossbeam 114 via the rear connecting member 125. Viewed from above, the distance between the front end of the rear connecting portion 123 and the longitudinal reference surface 101 is smaller than the distance between the rear end of the rear connecting portion 123 and the longitudinal reference surface 101. This arrangement allows an isosceles trapezoidal structure to be formed between the storage frame 121, the two rear connecting portions 123, and the rear crossbeam 114, resulting in higher structural stability of the storage frame 121 relative to the rear crossbeam 114.

[0036] In one specific embodiment, the lower end of the rear connector 125 passes through the rear end of the rear connector 123, the rear crossbeam 114, and into the rear frame 112. That is, the rear connector 125 is not only used to connect the rear crossbeam 114 to the rear frame 112, but also to connect the rear connector 123 to the rear crossbeam 114.

[0037] refer to Figure 3 and Figure 5 In one embodiment, the bottom of the seat cushion 13 is provided with multiple support portions 131. Along the length of the frame 11, the foremost support portion 131 is the first support portion 1311, and the rearmost support portion 131 is the second support portion 1312. The first support portion 1311 is supported by the under-seat support structure 12, and the second support portion 1312 is supported by the rear crossbeam 114. The first support portion 1311 is rotatably connected to the front end of the storage frame 121, and the rotation center line is parallel to the width direction of the frame 11. The second support portion 1312 has a protruding structure and abuts against the upper surface of the rear crossbeam 114. The user can open the seat cushion 13 and expose the under-seat support structure 12 by flipping the seat cushion 13 forward and upward. Viewed from above, the first support portion 1311 is located in front of the front connector 124, and the second support portion 1312 is located behind the front connector 124.

[0038] In one specific embodiment, the distance between the rotation center line of the first support 1311 and the center of the front connector 124 along the length direction of the frame 11 is defined as the first distance L1, and the distance between the center of the second support 1312 and the center of the front connector 124 along the length direction of the frame 11 is defined as the second distance L2. The ratio of the first distance L1 to the second distance L2 ranges from 0.09 to 0.51. Further, the ratio ranges from 0.16 to 0.44. Even further, the ratio ranges from 0.22 to 0.38. The value of the distance can be selected as any of the following values ​​or a value within the range of any two values: 0.09, 0.13, 0.16, 0.22, 0.25, 0.28, 0.29, 0.30, 0.31, 0.34, 0.38, 0.44, 0.51. This configuration allows the front connecting part 122 to be as close as possible to the front support part 131 along the length of the frame 11. As a result, the weight on the seat cushion 13 can be transmitted to the front connecting part 122 through the front support part 131 at the cost of a small torque, thereby enabling the under-seat support structure 12 to stably support the seat cushion 13 and prevent deformation.

[0039] The center of the front connector 124 can be understood as the centerline of the front connector 124. For example, when the front connector 124 is a bolt, its center is the centerline. The second support 1312 can be a columnar rubber block, and the center of the second support 1312 can be understood as its centerline.

[0040] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An electric two-wheeled vehicle, comprising: Frame; A seat support structure, which is mounted on the vehicle frame; The seat cushion is supported by the under-seat support structure; Its features are, The under-seat support structure includes a front connecting part and a rear connecting part. The front connecting part is connected to the frame by at least one front connecting member, and the rear connecting part is connected to the frame by at least one rear connecting member. The total number of the front connecting member and the rear connecting member is not less than three. When viewed along the width direction of the frame, the front connecting part is located in front of and below the rear connecting part.

2. The electric two-wheeled vehicle according to claim 1, characterized by, A plurality of rear connectors are provided between the rear connecting portion and the vehicle frame, and the plurality of rear connectors are arranged along the width direction of the vehicle frame; a front connecting portion is provided between the front connecting portion and the vehicle frame; or, a plurality of front connecting portions are provided between the front connecting portion and the vehicle frame, and the plurality of front connecting portions are arranged along the width direction of the vehicle frame, wherein the ratio of the distance between the two farthest front connectors to the distance between the two farthest rear connectors along the width direction of the vehicle frame ranges from 0.05 to 0.

21.

3. The electric two-wheeled vehicle according to claim 2, characterized by, The front connector faces upward relative to the vehicle frame and the front connecting part; the rear connector faces upward relative to the vehicle frame and the rear connecting part.

4. The electric two-wheeled vehicle according to claim 3, characterized by The bottom of the seat cushion is provided with multiple support parts. Along the length of the frame, the foremost support part is the first support part, and the rearmost support part is the second support part. The first support part is supported by the under-seat support structure, and the second support part is supported by the frame. Viewed from above, the first support part is located in front of the front connector, and the second support part is located behind the front connector.

5. The electric two-wheeled vehicle according to claim 4, characterized by The first support is rotatably connected to the under-seat support structure. The distance between the rotation center line of the first support and the center of the front connector along the length of the frame is defined as the first distance. The frame includes a rear crossbeam. The second support is a protruding structure that abuts against the upper surface of the rear crossbeam. The distance between the center of the second support and the center of the front connector along the length of the frame is defined as the second distance. The ratio of the first distance to the second distance is in the range of 0.09 to 0.

51.

6. The electric two-wheeled vehicle of claim 3, wherein, The under-seat support structure also includes a storage frame, which has a perforated hole extending along the height of the frame. When viewed along the height of the frame, the front connector is located within the area covered by the perforated hole.

7. The electric two-wheeled vehicle of claim 6, characterized in that, The electric two-wheeler also includes a power battery, which is housed within the storage compartment.

8. The electric two-wheeled vehicle of claim 2, wherein, The vehicle frame includes a front frame and a rear frame, the front frame and the rear frame are assembled and connected, the front connecting part is connected to the front frame, and the rear connecting part is connected to the rear frame.

9. The electric two-wheeled vehicle of claim 2, wherein, A plane passing through the center of the frame width and perpendicular to the frame width direction is defined as a longitudinal reference plane; multiple rear connecting parts are provided and are connected to the rear connecting members one by one. The rear end of the rear connecting part is connected to the rear connecting member. When viewed from above, the distance between the front end of the rear connecting part and the longitudinal reference plane is smaller than the distance between the rear end of the rear connecting part and the longitudinal reference plane.

10. The electric two-wheeled vehicle of claim 2, wherein, The front connecting part is basically U-shaped, and the bottom of the front connecting part is basically parallel to the width direction of the frame. The frame includes a front crossbeam, which extends at least partially along the width direction of the frame. The bottom of the front connecting part is attached to the portion of the front crossbeam that extends along the width direction of the frame and is connected to the front crossbeam through the front connector. The front connecting part has two upper ends, and the distance between the two upper ends of the front connecting part is greater than the length of the bottom of the front connecting part along the width direction of the frame.

Images