Electric two-wheeled vehicle
By introducing detachable add-ons and battery trays into the electric two-wheeler frame, the problem of incompatibility between electric bicycle and electric motorcycle frames has been solved, achieving frame versatility and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG JIHE ELECTRIC VEHICLE MANUFACTURING CO LTD
- Filing Date
- 2024-12-06
- Publication Date
- 2026-06-09
AI Technical Summary
The inability to share frames between existing electric bicycles and electric motorcycles increases production costs.
Design an electric two-wheeler frame comprising a front frame, a rear frame, and a crossbeam, with a battery tray connected via a detachable add-on, suitable for electric bicycles and electric motorcycles, enhancing frame strength and providing battery storage space.
This achieves the universality of electric two-wheeler frames across different types of vehicles, reduces production costs, and meets their respective strength and battery capacity requirements.
Smart Images
Figure CN122166252A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle technology, and more specifically to an electric two-wheeled vehicle. Background Technology
[0002] Two-wheeled vehicles generally refer to vehicles that are primarily propelled by two wheels. Based on their power source, they mainly include electric vehicles and gasoline vehicles; based on their functionality, they mainly include bicycles and motorcycles. In the field of electric bicycles and electric motorcycles, the two are quite similar, especially in terms of their frames. However, due to differences in their internal space and structural requirements, they often cannot share frames, leading to increased production costs. Summary of the Invention
[0003] To address the shortcomings of existing technologies, the purpose of this application is to provide an electric two-wheeled vehicle whose frame is compatible with both electric bicycles and electric motorcycles.
[0004] To achieve the above objectives, this application adopts the following technical solution:
[0005] An electric two-wheeled vehicle includes a frame, a body panel, a running system, and a power system. The body panel at least partially covers the frame; the running system is at least partially connected to the frame; the power system is supported by the frame; the frame includes a front frame, a rear frame, and a crossbeam, with the crossbeam connecting the front and rear frames along the length of the frame; the frame also includes an add-on, which has two connecting ends, one of which is detachably connected to the front frame or the crossbeam, and the other connecting end is detachably connected to the rear frame or the crossbeam; the add-on is substantially located between the front and rear frames along the length of the frame; and substantially located below the crossbeam along the height of the frame; a battery tray is fixed to the add-on, the battery tray including a tray portion and a connecting portion, the tray portion being connected to the add-on via the connecting portion.
[0006] Furthermore, the tray is located below the add-on.
[0007] Furthermore, the connection point between the connecting part and the mounting part is located between the two connecting ends of the mounting part.
[0008] Furthermore, the crossbeam includes a front section, a rear section, and a connecting section, which are distributed sequentially along the length of the frame. A plane perpendicular to the width of the frame and passing through the center of the frame width is defined as the longitudinal reference plane. The average distance between each position of the front section and the longitudinal reference plane is greater than the average distance between each position of the rear section and the longitudinal reference plane.
[0009] Furthermore, a plane perpendicular to the height of the frame is defined as the lateral reference plane, and the extension path of the projection of the added part in the lateral reference plane basically coincides with the extension path of the projection of the crossbeam in the lateral reference plane.
[0010] Furthermore, the add-on includes a front section, a rear section, and a connecting section; along the height direction of the frame, the front section, the connecting section, and the rear section correspond to the front section, the connecting section, and the rear section of the beam, respectively; the connection between the front section and the connecting section is defined as the first connection, the connection between the rear section and the connecting section is defined as the second connection, the connection between the front section and the connecting section is defined as the third connection, and the connection between the rear section and the connecting section is defined as the fourth connection; a support is connected between the first and third connections, and / or between the second and fourth connections.
[0011] Furthermore, the add-on includes a front section, a rear section, and a connecting section; along the height direction of the frame, the front section, the connecting section, and the rear section correspond to the front section, the connecting section, and the rear section of the beam, respectively; the connection between the front section and the connecting section is defined as the first connection, the connection between the rear section and the connecting section is defined as the second connection, the connection between the front section and the connecting section is defined as the third connection, and the connection between the rear section and the connecting section is defined as the fourth connection; the first and third connections are distributed along the length direction of the frame, and / or the second and fourth connections are distributed along the length direction of the frame.
[0012] Furthermore, a plane perpendicular to the height direction of the frame is defined as the lateral reference plane. The projection of the crossbeam onto the lateral reference plane and the projection of the added component onto the lateral reference plane together define at least one triangular area not covered by either projection.
[0013] Furthermore, at least one support is connected between the crossbeam and the mounting component; the projection of each support in the transverse reference plane completely covers a triangular area.
[0014] Furthermore, the extension direction of the added component is basically straight.
[0015] This application provides an add-on component with a battery tray capable of supporting the battery assembly. When the frame of the two-wheeled vehicle is transferred from the production environment of electric bicycles to that of electric motorcycles, the add-on component can not only enhance the strength of the entire frame to meet the strength requirements of motorcycles, but also define sufficient space to accommodate and support the battery assembly to meet the battery capacity requirements of motorcycles. Attached Figure Description
[0016] Figure 1This is a schematic diagram of the structure of an electric two-wheeled vehicle provided in one embodiment of this application;
[0017] Figure 2 This is a schematic diagram illustrating the fit between the frame and chainring of an electric two-wheeled vehicle according to an embodiment of this application.
[0018] Figure 3 This is a schematic diagram of the structure of an electric two-wheeled vehicle frame provided in one embodiment of this application;
[0019] Figure 4 yes Figure 3 A top view of one implementation of the chassis in the design;
[0020] Figure 5 yes Figure 4 A diagram showing the distance relationship between the rear section of the beam, the toothed plate, and the longitudinal reference plane;
[0021] Figure 6 yes Figure 4 Another distance relationship diagram between the rear section of the beam, the toothed plate, and the longitudinal reference plane;
[0022] Figure 7 yes Figure 3 A top view of the second implementation of the chassis in the design;
[0023] Figure 8 yes Figure 3 A top view of the third implementation of the chassis in the design;
[0024] Figure 9 yes Figure 3 A top view of the fourth implementation of the chassis in the design;
[0025] Figure 10 This is a schematic diagram of the structure of an electric two-wheeled vehicle frame provided in an embodiment of this application, showing the structure of the support member;
[0026] Figure 11 This is a side view of an electric two-wheeled vehicle frame provided in an embodiment of this application, showing the structural relationship between the reinforcing sheet and the crossbeam. Detailed Implementation
[0027] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0028] refer to Figure 1 and Figure 2The image shows an electric two-wheeler 100, which includes a frame 11, a body panel 12, a running system 13, and a power system 14. The body panel 12 substantially covers the outside of the frame 11, the running system 13 is at least partially connected to the frame 11, and the power system 14 is supported by the frame 11 and provides power to the running system 13 to drive the entire electric two-wheeler 100.
[0029] To clearly illustrate the technical solution of this application, the front, back, left, right, up, and down of the frame 11 of the electric two-wheeled vehicle 100 are also used as a reference to define the following: Figure 1 The front, rear, left, right, top, and bottom sides are shown. The length of the frame 11 of the electric two-wheeled vehicle 100 is in the front-to-back direction, the width of the frame 11 is in the left-to-right direction, and the height of the frame 11 is in the up-down direction.
[0030] refer to Figure 2 and Figure 3 The frame 11 includes a front frame 111, a rear frame 113, and a crossbeam 112. The crossbeam 112 connects the front frame 111 and the rear frame 113 along the length of the frame 11. In one implementation, two crossbeams 112 are provided, located on both sides of the frame 11 along its width. The running gear 13 includes a front wheel 131 and a rear wheel 132. The front wheel 131 is at least partially connected to the front frame 111, specifically via a front suspension shock absorber on the front frame 111 (not shown). The rear wheel 132 is at least partially connected to the rear frame 113. The power system 14 includes a battery pack 141, a motor (not shown), a chainring 142, and a transmission 143. The battery pack 141 is located between two crossbeams 112 and provides power to the motor. The motor is supported by the crossbeams 112 and / or the rear frame 113. The output end of the motor is connected to the chainring 142, which is connected to the axle 1321 of the rear wheel 132 via the transmission 143. In some implementations, the transmission 143 is a chain with its ends connected; in another alternative implementation, it is a belt. The frame 11 also includes a rear swingarm 116. The rear end of the rear swingarm 116 is connected to the axle 1321 of the rear wheel 132, and the front end of the rear swingarm 116 is rotatably connected to the rear frame 113.
[0031] refer to Figure 3 and Figure 4The front frame 111 includes a front frame rod 1111, a connecting rod 1112, and an extension 1113. A plane perpendicular to the width direction of the frame 11 and passing through the center of the width of the frame 11 is defined as the longitudinal reference plane 101. Along the width direction of the frame 11, the distance between the front frame rod 1111 and the longitudinal reference plane 101 is essentially zero, and the front frame rod 1111 extends substantially along the height direction of the frame 11. Two connecting rods 1112 are provided, located on both sides of the front frame rod 1111 along the width direction of the frame 11. The connecting rods 1112 are inclined, with their upper ends fixedly connected to the front frame 111, and their lower ends extending away from the longitudinal reference plane 101 and fixedly connected to the nearest crossbeam 112. In one implementation, the connecting rod 1112 and the crossbeam 112 are integrally formed. In another optional implementation, the connecting rod 1112 is integrally formed with the front frame rod 1111, or the connecting rod 1112, the front frame rod 1111, and the crossbeam 112 are not integrally formed. Along the height direction of the frame 11, the extension 1113 is basically C-shaped, and the extension 1113 is fixed to the lower end of the front frame rod 1111. The extension 1113 includes a front connecting rod 1113a and a side connecting rod 1113b. The front connecting rod 1113a is symmetrically arranged along the longitudinal reference plane 101 and fixed to the front frame rod 1111. There are two side connecting rods 1113b, which are respectively fixed to the two ends of the front connecting rod 1113a along the width direction of the frame 11. The front connecting rod 1113a and the side connecting rod 1113b can be integrally formed. Along the length of the frame 11, the front link 1113a is located below and in front of the crossbeam 112, and the side link 1113b extends obliquely upward away from the front link 1113a and is fixed to the crossbeam 112. The projections of the extension 1113, the front link 1111, and the crossbeam 112 in the longitudinal reference plane 101 form a triangular structure. The extension 1113 provides front protection for components in the area between the two crossbeams 112, and due to the triangular structure, the connection between the extension 1113, the front link 1111, and the crossbeam 112 is very stable. In one implementation, the component located in the area between the two crossbeams 112 is the battery assembly 141; therefore, the extension 1113 provides front protection for the battery assembly 141.
[0032] The rear frame 113 includes a rear frame rod 1131 and a reinforcing member 1132. The end of the crossbeam 112 is connected to the outer peripheral wall of the rear frame rod 1131. Specifically, an arc-shaped pad 1133 is welded to the end of the crossbeam 112, and the arc-shaped pad 1133 partially surrounds and fits against the outer peripheral wall of the rear frame rod 1131. The two can be welded together. The reinforcing member 1132 is approximately triangular in shape. The reinforcing member 1132 is fixed to the lower surface of the crossbeam 112 and fixedly connected to the outer peripheral wall of the rear frame rod 1131, thereby improving the connection strength between the crossbeam 112 and the rear frame rod 1131. The reinforcing member 1132 is provided with 1132a, and the rear horizontal fork 116 (see...) Figure 2The front end of the reinforcement 1132 is rotatably connected to the mounting hole 1132a. The reinforcement 1132 includes two reinforcing plates 1132b arranged along the width direction of the frame 11. The two reinforcing plates 1132b are welded together, thereby increasing the thickness of the reinforcement 1132 at low cost. In one implementation, there are two rear frame rods 1131, which are symmetrically arranged along the longitudinal reference plane 101. Each rear frame rod 1131 corresponds to a crossbeam 112. The two rear frame rods 1131 are fixedly connected by at least one crossbeam 1134. A load-bearing member 1135 is fixed to the top of the rear frame rod 1131. The load-bearing member 1135 is used as a mounting bracket for the seat or trunk.
[0033] The crossbeam 112 includes a front section 1121, a rear section 1123, and a connecting section 1122, which are distributed sequentially along the length of the frame 11. When the frame 11 of this application is used in an electric motorcycle, it does not have a chainring 142. A gear (not shown) can be used instead of the chainring 142 to connect to the output end of the motor and to the transmission component 142. When the frame 11 of this application is used in an electric bicycle, a battery assembly 141 and a chainring 142 need to be installed on the bicycle. Along the length of the frame 11, the battery assembly 141 is basically located at the front of the frame 11, that is, near the front section 1121 of the beam, while the chainring 142 is basically located at the rear of the frame 11, that is, near the rear section 1123 of the beam. The arrangement position of the battery assembly 141 is defined as the first arrangement position 103, and the arrangement position of the chainring 142 is defined as the second arrangement position 104. In the design process of the technical solution of this application, two problems need to be addressed. First, in order to increase the space capacity of the first arrangement position 103 for arranging the battery assembly 141, it is necessary to widen the width of the first arrangement position 103, that is, to widen the distance between the front section 1121 of the beam along the width direction of the frame 11 and the longitudinal reference plane 101. Secondly, to facilitate maintenance of the crankset 142 and the components connected to it, the second arrangement position 104 cannot be located on the inner side of the rear section 1123 of the beam along the width direction of the frame 11. Therefore, the average value L1 of the distance between each position of the front section 1121 of the beam and the longitudinal reference surface 101 is greater than the average value L2 of the distance between each position of the rear section 1123 of the beam and the longitudinal reference surface 101.
[0034] Regarding the positional relationship between the second arrangement position 104 and the rear section 1123 of the beam, in one implementation, the second arrangement position 104 is located below the rear section 1123 of the beam along the height direction of the frame 11 (see...). Figure 3Since the crankset 142 is fixed in height relative to the entire frame 11, it should not be too high or too low, otherwise it would affect power transmission. Therefore, the second arrangement position 104 is fixed in height and will not be too low. However, the area above the first arrangement position 103 needs to accommodate the user's feet, so the first arrangement position 103 should not be too high. Therefore, along the height direction of the frame 11, the rear section 1123 of the beam is located above the front section 1121 of the beam, creating a height difference between the front and rear sections 1121, which facilitates the spatial arrangement of the first and second arrangement positions 103 and 104. The area below the rear section 1123 and the beam connection section 1122 defines a space for accommodating the crankset 142; this space is the second arrangement position 104. Since the rear section 1123 of the beam is located above the chainring 142, the rear section 1123 of the beam and the chainring 142 can avoid obstructing each other in the width direction of the frame 11.
[0035] refer to Figure 5 and Figure 6 Define a plane perpendicular to the height direction of the frame 11 as the transverse reference plane 102. The maximum distance L3 between the rear section 1123 of the beam and the longitudinal reference plane 101 is greater than the minimum distance L4 between the chainring 142 and the longitudinal reference plane 101 (see...). Figure 5 Specifically, the projection of the rear segment 1123 of the beam in the transverse reference plane 102 may coincide with the projection of the crank plate 142 in the transverse reference plane 102, or the projections may not coincide, with the projection of the crank plate 142 being closer to the longitudinal reference plane 101 than the projection of the rear segment 1123 of the beam. Furthermore, the minimum distance L5 between the rear segment 1123 of the beam and the longitudinal reference plane 101 is greater than the maximum distance L6 between the crank plate 142 and the longitudinal reference plane 101 (see...). Figure 6 In this case, the projection of the rear section 1123 of the beam does not coincide with the projection of the chainring 142, and the projection of the chainring 142 is closer to the longitudinal reference plane 101 than the projection of the rear section 1123 of the beam. The purpose of the above arrangement is to allow for a larger distance between the rear section 1123 of the beam and the longitudinal reference plane 101, thereby increasing the space between the two rear sections 1123 of the beam and providing more space for storing the battery assembly 141.
[0036] refer to Figure 3 and Figure 4The frame 11 also includes an add-on 114, which is located substantially between the front frame 111 and the rear frame 113 along the length of the frame 11, and substantially below the crossbeam 112 along the height of the frame 11. In one implementation, the add-on 114 is substantially rod-shaped. The add-on 114 includes two connecting ends 1144, one connecting end 1144 being detachably connected to the front frame 111 or the crossbeam 112, and the other connecting end 1144 being detachably connected to the rear frame 113 or the crossbeam 112. In one implementation, one connecting end 1144 of the add-on 114 is connected to the front frame 111. Specifically, the front frame 111 further includes a connecting rib 1114, which is fixed to the lower surface of the side connecting rod 1113b of the extension 1113. One connecting end 1144 of the add-on 114 is connected to the connecting rib 1114. The other connecting end 1144 of the add-on 114 is connected to the rear frame 113. Specifically, the other connecting end 1144 of the add-on 114 is connected to the reinforcing member 1132. A battery tray 115 is fixed on the add-on 114. The battery tray 115 includes a tray portion 1151 and a connecting portion 1152. The tray portion 1151 is connected to the add-on 114 through the connecting portion 1152 and can be used to support the battery assembly 141. Along the height direction of the frame 11, the tray portion 1151 is located below the add-on 114. In one implementation, multiple connecting parts 1152 are provided, and some or all of the connecting parts 1152 are detachably connected to the mounting part 114. In another optional implementation, multiple connecting parts 1152 are provided, and some or all of the connecting parts 1152 are welded and fixed to the mounting part 114.
[0037] It is worth noting that when the frame 11 of this application is used in an electric bicycle, the add-on 114 is not installed on the frame 11, and the battery assembly 141 can be connected to the crossbeam 112 via the mounting piece 1124 fixed to the upper surface of the crossbeam 112. Specifically, since it is an electric bicycle, the wheels of the electric bicycle are usually relatively small, and the distance between the crossbeam 112 and the ground is small. Therefore, the space under the crossbeam 112 is limited, and it is not advisable to accommodate too many components, including the battery assembly 141, under it. Therefore, in the electric bicycle mode, by connecting the battery assembly 141 via the mounting piece 1124, the height of the entire battery assembly 141 relative to the crossbeam 112 can be increased.
[0038] When the frame 11 of this application is used in an electric motorcycle, an add-on 114 is installed on the frame 11, and the battery assembly 141 is supported on the tray 1151. The add-on 114 not only provides support strength for the entire frame 11, especially along the length of the frame 11, but also provides a support base for the battery assembly 141. In one implementation, the battery assembly 141 is fixedly connected to the battery tray 115; in another optional implementation, the battery assembly 141 is fixedly connected to the add-on 114 or the crossbeam 112. Specifically, since it is an electric motorcycle mode, the wheels of an electric motorcycle are usually relatively large, and the distance between the crossbeam 112 and the ground is large. Therefore, the space under the crossbeam 112 is relatively ample, and the battery assembly 141 can extend downwards relative to the crossbeam 112 by a large distance. Thus, in the electric motorcycle mode, by installing the add-on 114 and the battery tray 115, the space under the crossbeam 112 can be fully utilized where the height allows, thereby expanding the accommodation space of the battery assembly 141 and allowing for the installation of a battery assembly 141 with a larger capacity and volume.
[0039] refer to Figure 3 Along the length of the frame 11, the connection point between the connecting part 1152 and the mounting part 114 is located between the two connecting ends 1144 of the mounting part 114. In other words, the point of gravity application of the battery assembly 141 relative to the mounting part 114 is closer to the middle of the crossbeam 112 along the length of the frame 11, while the point of gravity application of the mounting part 114 relative to the crossbeam 112, the front frame 111, and the rear frame 113 is closer to the two ends of the crossbeam 112 along the length of the frame 11. Understandably, in the operating conditions of an electric motorcycle, the weight of the entire electric two-wheeled vehicle 100 is supported by the front wheel 131 and the rear wheel 132. Therefore, the closer the point of gravity application of each component connected to the frame 11 is to the front wheel 131 or the rear wheel 132 along the length of the frame 11, the smaller the shear stress on the frame 11, and the greater the weight that the frame 11 can bear. In this application, the above-mentioned arrangement concentrates the weight of the battery assembly 141 near the front frame 111 and the rear frame 113. Since the front frame 111 and rear frame 113 are located near the front wheel 131 and the rear wheel 132 respectively, this arrangement helps to improve the weight-bearing capacity of the frame 11. Because the weight of the battery assembly 141 is transferred to the crossbeam 112, the front frame 111, and the rear frame 113 through the mounting component 114, the connection positions of the two connecting ends 1144 of the mounting component 114 with the crossbeam 112, the front frame 111, and the rear frame 113 are fixed. Therefore, the location of the connection point between the connecting part 1152 of the battery tray 115 and the mounting component 114 does not significantly affect the load-bearing capacity of the crossbeam 112, the front frame 111, and the rear frame 113. This provides the battery tray 115 with more flexible installation position options relative to the mounting component 114.
[0040] refer to Figure 4 In one implementation, the extension path of the projection of the add-on 114 onto the lateral reference plane 102 basically coincides with the extension path of the projection of the crossbeam 112 onto the lateral reference plane 102. This can be understood as the crossbeam 112 and the add-on 114 coinciding in the height direction of the frame 11. Therefore, the portion of the body panel 12 covering the crossbeam 112 and the add-on 114 can have good flatness along the height direction of the frame 11.
[0041] refer to Figures 7-9 In another implementation, the crossbeam 112 and the add-on 114 do not completely overlap in the height direction of the frame 11. Specifically, the add-on 114 includes a front section 1141, a rear section 1143, and a connecting section 1142. Along the height direction of the frame 11, the front section 1141, the connecting section 1142, and the rear section 1143 correspond to the front section 1121, the connecting section 1122, and the rear section 1123 of the beam, respectively. The connection point between the front section 1121 of the beam and the connecting section 1122 is defined as the first connection point 1125; the connection point between the rear section 1123 of the beam and the connecting section 1122 is defined as the second connection point 1126; the connection point between the added front section 1141 and the added connecting section 1142 is defined as the third connection point 1145; and the connection point between the added rear section 1143 and the added connecting section 1142 is defined as the fourth connection point 1146. The first connection point 1125 and the third connection point 1145 are distributed along the length direction of the frame 11, and / or the second connection point 1126 and the fourth connection point 1146 are distributed along the length direction of the frame 11.
[0042] refer to Figure 7 In one implementation, the first connection 1125 and the third connection 1145 are located at the same position along the length of the frame 11, meaning that the first connection 1125 and the third connection 1145 coincide along the height direction. The second connection 1126 and the fourth connection 1146 are distributed along the length of the frame 11, meaning that the first connection 1125 and the third connection 1145 do not coincide along the height direction. The projection of the crossbeam 112 in the transverse reference plane 102 and the projection of the mounting component 114 in the transverse reference plane 102 together define a triangular area 105 that is not covered by either projection. When viewing the crossbeam 112 and the mounting component 114 along the height direction of the frame 11, this triangular area 105 is located on the side of the crossbeam 112 closer to the longitudinal reference plane 101.
[0043] refer to Figure 8In another implementation, the first connection 1125 and the third connection 1145 are distributed along the length of the frame 11, meaning that the first connection 1125 and the third connection 1145 do not coincide along the height direction. The second connection 1126 and the fourth connection 1146 are distributed along the length of the frame 11, meaning that the first connection 1125 and the third connection 1145 do not coincide along the height direction. The projection of the crossbeam 112 in the transverse reference plane 102 and the projection of the mounting component 114 in the transverse reference plane 102 together define two triangular areas 105 that are not covered by either projection. When viewing the crossbeam 112 and the mounting component 114 along the height direction of the frame 11, the two triangular areas 105 are located on both sides of the crossbeam 112.
[0044] refer to Figure 9 In another implementation, the first connection 1125 and the third connection 1145 are distributed along the length of the frame 11, meaning that the first connection 1125 and the third connection 1145 do not coincide along the height direction. The second connection 1126 and the fourth connection 1146 are located at the same position along the length of the frame 11, meaning that the first connection 1125 and the third connection 1145 coincide along the height direction. The projection of the crossbeam 112 onto the transverse reference plane 102 and the projection of the mounting component 114 onto the transverse reference plane 102 together define a triangular area 105 not covered by either projection. When viewed along the height direction of the frame 11, the triangular area 105 is located on the side of the crossbeam 112 away from the longitudinal reference plane 101.
[0045] In one implementation, the extension direction of the mounting part 114 is basically straight (not shown in the figure), so the mounting part 114 can have good support along the length direction of the frame 11.
[0046] refer to Figure 9 and Figure 10 A support member 1127 connects the crossbeam 112 and the mounting component 114. The support member 1127 not only connects the crossbeam 112 and the mounting component 114 but also provides support for them, thereby improving their structural strength. In one implementation, the support member 1127 includes a first support portion 1127a and a second support portion 1127b. The first support portion 1127a is fixed to the crossbeam 112, and the second support portion 1127b is fixed to the mounting component 114. The first support portion 1127a and the second support portion 1127b can be fixedly connected by bolts or other means. In another optional implementation, the support member 1127 is an integral structure, with its two ends fixed to the crossbeam 112 and the mounting component 114 respectively by bolts or other means.
[0047] Regarding the arrangement of the support member 1127, in one implementation, the support member 1127 is arranged near the triangular region 105. Specifically, the projection of one support member 1127 onto the transverse reference plane 102 completely covers a triangular region 105 (see...). Figure 9 If the support member 1127 forms a stable triangular support structure between the beam 112 and the mounting member 114, it provides stable support for the beam 112. In another implementation, the support member 1127 is arranged between the first connection 1125 and the third connection 1145, and / or between the second connection 1126 and the fourth connection 1146 (see...). Figure 10 ).
[0048] refer to Figure 11 A reinforcing plate 1128 is fixed on the crossbeam 112. The first connection 1125 has a major angle side and a minor angle side, and the second connection 1126 also has a major angle side and a minor angle side. In one implementation, multiple reinforcing plates 1128 are provided, with some located on the minor angle side of the first connection 1125 and others located on the minor angle side of the second connection 1126. In another optional implementation, the reinforcing plate 1128 is only provided on the minor angle side of the first connection 1125 or the minor angle side of the second connection 1126.
[0049] 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: Frame; A body panel that at least partially covers the vehicle frame; A walking system, which is at least partially connected to the vehicle frame; The power system is supported by the vehicle frame; The vehicle frame is characterized in that it includes a front frame, a rear frame, and a crossbeam, with the crossbeam connecting the front frame and the rear frame along the length of the frame; the frame also includes an add-on component, which has two connecting ends, one of which is detachably connected to the front frame or the crossbeam, and the other connecting end is detachably connected to the rear frame or the crossbeam; along the length of the frame, the add-on component is substantially located between the front frame and the rear frame; along the height of the frame, the add-on component is substantially located below the crossbeam; a battery tray is fixed to the add-on component, the battery tray including a tray portion and a connecting portion, the tray portion being connected to the add-on component via the connecting portion.
2. The electric two-wheeled vehicle according to claim 1, characterized in that, Along the height direction of the vehicle frame, the tray portion is located below the mounting component.
3. The electric two-wheeled vehicle according to claim 1 or 2, characterized in that, Along the length of the vehicle frame, the connection point between the connecting part and the mounting component is located between the two connecting ends of the mounting component.
4. The electric two-wheeled vehicle according to claim 1, characterized in that, The crossbeam includes a front section, a rear section, and a connecting section, which are distributed sequentially along the length of the frame. A plane perpendicular to the width of the frame and passing through the center of the frame width is defined as a longitudinal reference plane. The average distance between each position of the front section and the longitudinal reference plane is greater than the average distance between each position of the rear section and the longitudinal reference plane.
5. The electric two-wheeled vehicle according to claim 4, characterized in that, A plane perpendicular to the height direction of the frame is defined as a transverse reference plane, and the extension path of the projection of the added component in the transverse reference plane basically coincides with the extension path of the projection of the crossbeam in the transverse reference plane.
6. The electric two-wheeled vehicle according to claim 4 or 5, characterized in that, The add-on includes a front add-on section, a rear add-on section, and a connecting add-on section; along the height direction of the vehicle frame, the front add-on section, the connecting add-on section, and the rear add-on section correspond to the front section, the connecting section, and the rear section of the beam, respectively; the connection between the front section and the connecting section is defined as the first connection point, the connection between the rear section and the connecting section is defined as the second connection point, the connection between the front add-on section and the connecting add-on section is defined as the third connection point, and the connection between the rear add-on section and the connecting add-on section is defined as the fourth connection point; a support member is connected between the first connection point and the third connection point, and / or, a support member is connected between the second connection point and the fourth connection point.
7. The electric two-wheeled vehicle according to claim 4, characterized in that, The add-on component includes a front add-on section, a rear add-on section, and a connecting add-on section; along the height direction of the vehicle frame, the front add-on section, the connecting add-on section, and the rear add-on section correspond to the front section, the connecting section, and the rear section of the beam, respectively; the connection point between the front section and the connecting section is defined as the first connection point, the connection point between the rear section and the connecting section is defined as the second connection point, the connection point between the front add-on section and the connecting add-on section is defined as the third connection point, and the connection point between the rear add-on section and the connecting add-on section is defined as the fourth connection point; the first connection point and the third connection point are distributed along the length direction of the vehicle frame, and / or the second connection point and the fourth connection point are distributed along the length direction of the vehicle frame.
8. The electric two-wheeled vehicle according to claim 7, characterized in that, A plane perpendicular to the height direction of the frame is defined as a transverse reference plane. The projection of the crossbeam onto the transverse reference plane and the projection of the mounting component onto the transverse reference plane together define at least one triangular area not covered by either projection.
9. The electric two-wheeled vehicle according to claim 8, characterized in that, At least one support is connected between the crossbeam and the mounting component; the projection of each support in the transverse reference plane completely covers one of the triangular areas.
10. The electric two-wheeled vehicle according to claim 4, characterized in that, The extension direction of the added component is basically a straight line.