Electric motorcycle frame

Abstract

The utility model relates to an electric motorcycle frame which comprises a front frame and a rear frame, the front frame comprises a front fork tube and two front main frames symmetrically arranged on the outer side wall of the front fork tube, and the two front main frames are connected through a plurality of reinforcing plates; the front main frame comprises a first frame body, a second frame body and a third frame body which are reduced one by one, the first frame body is connected to the front fork pipe, the second frame body and the third frame body are connected to the two adjacent edges of the first frame body respectively, and one inner corner of the first frame body, one inner corner of the second frame body and one inner corner of the third frame body are gathered towards the same position; and the rear frame is detachably connected to the third frame body. According to the front frame, the mode that the three frame bodies of the frame type structures are connected is adopted, so that the whole front frame is kept light, and meanwhile the structural strength and rigidity are greatly improved. Impact force and torsion generated in the driving process can be effectively dispersed and absorbed, vehicle body vibration is reduced, and the riding comfort is improved.

Description

Technical Field

[0001] The utility model relates to the field of electric motorcycles, and particularly to an electric motorcycle frame. Background Art

[0002] At present, electric motorcycles are not only used as means of transportation for riding, but also provide fun in terms of sports for people's lives. As an important part of an electric motorcycle, the frame bears most of the vehicle load and has a decisive impact on the overall structural strength and riding effect of the electric motorcycle. The overall structural strength of the frame largely determines the safety performance of the electric motorcycle. In the prior art, most frames are made by connecting multiple steel bars together one by one through welding, and adding steel bars at weak parts to improve the strength. However, its structural strength largely depends on the quality of the steel bars, and there are certain defects in the force distribution, with insufficient strength, and local stress concentration is likely to occur during driving. Summary of the Utility Model

[0003] In view of this, the utility model provides an electric motorcycle frame with a simple structure, higher strength and stability compared with traditional frames.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] An electric motorcycle frame includes a front frame and a rear frame. The front frame includes a front fork tube and two front main frames symmetrically arranged on the outer side wall of the front fork tube. The two front main frames are connected by a plurality of reinforcing plates. Each front main frame includes a first frame body, a second frame body and a third frame body that gradually shrink. The first frame body is connected to the front fork tube, the second frame body and the third frame body are respectively connected to adjacent sides of the first frame body, and one of the inner angles of the first frame body, the second frame body and the third frame body converges towards the same place. The rear frame is detachably connected to the third frame body.

[0006] In the above technical solution, the front frame adopts the first frame body, the second frame body and the third frame body with a frame structure, and cleverly designs their gradually shrinking layout, that is, the connection method of using three frame structures of the frame bodies, so that the entire front frame not only maintains light weight, but also greatly improves the structural strength and rigidity. This structure can effectively disperse and absorb the impact force and torsion generated during driving, ensure riding safety, reduce vehicle body vibration, and improve riding comfort.

[0007] In addition, gathering one inner angle of the first frame body, the second frame body, and the third frame body towards the same place not only enhances the structural compactness but also makes the force on the entire front frame more reasonable, ensuring that under extreme working conditions such as emergency braking and rapid turning, the stress distribution of the frame is more uniform, reducing local stress concentration and extending the service life of the frame.

[0008] Optionally, in a possible implementation, the first frame body has two mutually perpendicular side frames, and between the two first frame bodies, there are two mounting plates for supporting the battery, and the two mounting plates are respectively located on the two perpendicular side frames.

[0009] In the above technical solution, the first frame body has two right-angled side frames and one inclined side frame, the purpose of which is to enable the two mounting plates to form a right-angled structure, facilitating the installation of the battery. On the one hand, it can make the installation position of the battery more stable, enclosing the battery within the front bracket and the two mounting plates, reducing displacement or loosening caused by vibration during driving, thus ensuring the safety of the battery and the stability of the entire vehicle; on the other hand, it can also accommodate as many batteries as possible within the limited space, improving the energy density of the vehicle and thereby extending the cruising range.

[0010] Optionally, in a possible implementation, the two mounting plates are detachably mounted between the two first frame bodies.

[0011] In the above technical solution, the detachable design of the mounting plate makes the frame structure more modular, facilitating users or maintenance personnel to quickly replace or upgrade the mounting plate according to actual needs. For example, replacing mounting plates of different sizes to adapt to batteries of different capacities, or upgrading mounting plates with better heat dissipation performance. This modular design also reduces the maintenance cost of the entire vehicle and improves the maintenance efficiency.

[0012] Optionally, in a possible implementation, at least two fixing blocks are provided on the second frame body, fixing holes are provided on the fixing blocks, and the two fixing blocks are spaced apart and jointly used to support the seat frame.

[0013] In the above technical solution, the multi-point support method using two fixing blocks can disperse the weight of the seat and the passenger, reducing the phenomenon of single-point force, thereby enhancing the stability and durability of the entire frame structure. The fixing hole design can play a positioning role, further facilitating the installation of the seat frame.

[0014] Optionally, in a possible implementation, a first extension frame is provided on the third frame body, a second extension frame is provided on the first frame body, and the first extension frame and the second extension frame are spaced apart and jointly used to support the motor.

[0015] In the above technical solution, the first extension frame and the second extension frame provide a more stable support structure for the motor. This double-point or multi-point support method can disperse the vibration and impact force during the operation of the motor, effectively preventing the motor from loosening or being damaged due to long-term operation or bumps under harsh road conditions, thereby extending the service life of the motor.

[0016] Optionally, in a possible implementation manner, a strip-shaped through hole is provided on the first extension frame.

[0017] In the above technical solution, the design of the strip-shaped through hole provides higher flexibility for the installation and adjustment of the motor. By adjusting the position of the motor fixing member in the strip-shaped through hole, the installation angle or position of the motor can be finely adjusted to meet different power output requirements or vehicle layout requirements.

[0018] Optionally, in a possible implementation manner, a protective cover is detachably connected between the first extension frame and the second extension frame, and a plurality of heat dissipation holes are provided on the protective cover.

[0019] In the above technical solution, the detachable design makes the installation and disassembly of the protective cover extremely convenient. Moreover, as a physical barrier, the protective cover can, to a certain extent, isolate impurities in the external environment from directly contacting the internal equipment, and can resist external impacts, enhancing safety. The design of the heat dissipation holes provides a good ventilation and heat dissipation channel for the interior of the equipment while ensuring the protection function.

[0020] Optionally, in a possible implementation manner, the rear frame includes two symmetrically arranged main rear frames, and the two main rear frames are respectively installed on the two third frames.

[0021] In the above technical solution, the rear frame is used to support the rear wheels of the vehicle. Since the main rear frames are independent and symmetric components, they can be installed and disassembled separately, making the assembly and maintenance process of the entire rear frame simpler and faster. In addition, the design of two independent main rear frames provides more modification space and flexibility, and their size, shape or material can be adjusted according to needs to adapt to different load requirements or working environments.

[0022] Optionally, in a possible implementation manner, a first shock absorber mounting seat is connected between the two front main frames, and a second shock absorber mounting seat is connected between the two main rear frames, and the first shock absorber mounting seat and the second shock absorber mounting seat are arranged oppositely.

[0023] In the above technical solution, by providing shock absorber mounting seats on the front main frame and the main rear frame, the installation of the shock absorption system is facilitated, enabling it to absorb and disperse the impact force and vibration from the road surface, significantly reducing the vibration and noise of the vehicle body, and improving the comfort and stability of riding. Description of the Drawings

[0024] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment.

[0026] Figure 2 It is a schematic diagram of the structure of the front frame of an embodiment.

[0027] Reference numerals: 1 - front frame; 11 - front fork tube; 12 - front main frame; 121 - first frame body; 122 - second frame body; 123 - third frame body; 13 - mounting plate; 14 - fixing block; 141 - fixing hole; 15 - first extension frame; 151 - strip-shaped through hole; 16 - second extension frame; 17 - protective cover; 171 - heat dissipation hole; 18 - first shock absorber mounting seat; 2 - rear frame; 21 - rear main frame; 22 - second shock absorber mounting seat. Detailed implementation manners

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0030] Please refer to Figure 1 and Figure 2 .

[0031] This embodiment provides an electric motorcycle frame, which includes a front frame 1 and a rear frame 2. The front frame 1 includes a front fork tube 11 and two front main frames 12 symmetrically arranged on the outer side wall of the front fork tube 11. The two front main frames 12 are connected by a plurality of reinforcing plates. The front main frame 12 includes a first frame body 121, a second frame body 122 and a third frame body 123 that gradually shrink one by one. The first frame body 121 is connected to the front fork tube 11, and the second frame body 122 and the third frame body 123 are respectively connected to adjacent sides of the first frame body 121, and one of the inner angles of the first frame body 121, the second frame body 122 and the third frame body 123 converges towards the same place. The rear frame 2 is detachably connected to the third frame body 123.

[0032] In this embodiment, the front frame 1 of the electric motorcycle adopts the first frame body 121, the second frame body 122 and the third frame body 123 with a frame structure, and cleverly designs their gradually shrinking layout, that is, the connection method of using three frame-structured frame bodies, so that the entire front frame 1 not only maintains light weight, but also greatly improves the structural strength and rigidity. This structure can effectively disperse and absorb the impact force and torsion generated during driving, ensure riding safety, reduce body vibration, and improve riding comfort. Among them, during actual assembly, the handlebar, seat frame and battery motor module of the electric motorcycle can be respectively connected to the first frame body 121, the second frame body 122 and the third frame body 123, that is, they are respectively supported by the first frame body 121, the second frame body 122 and the third frame body 123. In this way, the main stress points of the electric motorcycle can all be supported by a more stable triangular structure, thereby improving the overall strength and stability of the electric motorcycle.

[0033] In addition, converging one of the inner angles of the first frame body 121, the second frame body 122 and the third frame body 123 towards the same place not only enhances the structural compactness, but also makes the force of the entire front frame 1 more reasonable, ensuring that under extreme working conditions such as emergency braking and rapid turning, the stress distribution of the frame is more uniform, reducing local stress concentration, and extending the service life of the frame.

[0034] It should be noted that the frame structure mentioned in this embodiment can be a "quasi-triangular" frame structure, which can be understood as a structure that adds a border or frame on the basis of a triangle. It generally retains the basic shape of a triangle, that is, it is composed of three sides and three angles, but may add additional supports or boundaries on the periphery to form a more complete geometric body with a border. Among them, the border of the "quasi-triangular" frame structure can add a certain arc curve according to actual design requirements, or an additional side can be added to form a quadrilateral structure. However, it should be noted at this time that the quadrilateral structure should have a shortest side whose length is significantly shorter than the other three sides, so that the overall frame is closer to a triangle.

[0035] In this embodiment, the first frame 121 has two mutually perpendicular side frames. Between the two first frames 121, there are two mounting plates 13 for supporting the battery, and the two mounting plates 13 are respectively located on the two perpendicular side frames.

[0036] The first frame 121 of this embodiment has two right-angled side frames and one oblique side frame. The purpose is to enable the two mounting plates 13 to form a right-angled structure, which is convenient for matching and installing with the battery. On the one hand, it can make the installation position of the battery more stable, wrap the battery within the front bracket and the two mounting plates 13, reducing displacement or loosening caused by vibration during driving, thereby ensuring the safety of the battery and the stability of the whole vehicle; on the other hand, it can also accommodate as many batteries as possible within the limited space, that is, increase the installation space of the battery, improve the energy density of the vehicle, and further extend the cruising range.

[0037] In this embodiment, the two mounting plates 13 are detachably installed between the two first frames 121. The two mounting plates 13 can be fixed by parts such as screws. The detachable design of the mounting plate 13 makes the frame structure more modular, facilitating users or maintenance personnel to quickly replace or upgrade the mounting plate 13 according to actual needs. For example, replacing mounting plates 13 of different sizes to adapt to batteries of different capacities, or upgrading mounting plates 13 with better heat dissipation performance. This modular design also reduces the maintenance cost of the whole vehicle and improves the maintenance efficiency.

[0038] In this embodiment, at least two fixing blocks 14 are provided on the second frame 122, and fixing holes 141 are provided on the fixing blocks 14. The two fixing blocks 14 are spaced apart and jointly used to support the seat frame. Specifically, mounting holes matching the fixing holes 141 are provided on the seat frame, that is, after the mounting holes on the seat frame and the fixing holes 141 on the fixing blocks 14 are aligned, they can be locked and fixed by bolts.

[0039] By adopting the multi-point support method of the two fixing blocks 14, the weight of the seat and the passengers can be dispersed, reducing the phenomenon of single-point stress, thereby enhancing the stability and durability of the entire frame structure. The design of the fixing holes 141 can play a positioning role, further facilitating the installation of the seat frame.

[0040] In this embodiment, a first extension bracket 15 is provided on the third housing 123, and a second extension bracket 16 is provided on the first housing 121. The first extension bracket 15 and the second extension bracket 16 are spaced apart and jointly used to support the motor. The first extension bracket 15 is connected to the third housing 123, and the second extension bracket 16 is connected to the first housing 121. The arrangement of the first extension bracket 15 and the second extension bracket 16 can provide a more stable support structure for the motor. This way of double-point or multi-point support can disperse the vibration and impact force during the operation of the motor, effectively preventing the motor from loosening or being damaged due to long-term operation or jolts under harsh road conditions, thereby extending the service life of the motor.

[0041] It should be noted that a strip-shaped through hole 151 is provided on the first extension bracket 15. The design of the strip-shaped through hole 151 provides higher flexibility for the installation and adjustment of the motor. By adjusting the position of the motor fixing part in the strip-shaped through hole 151, the installation angle or position of the motor can be finely adjusted to meet different power output requirements or vehicle layout requirements.

[0042] In this embodiment, a protective cover 17 is detachably connected between the first extension bracket 15 and the second extension bracket 16, and a plurality of heat dissipation holes 171 are provided on the protective cover 17. The protective cover 17 is of an integrally bent structure, and its two ends can be respectively fixed on the first extension bracket 15 and the second extension bracket 16. Of course, as another implementation manner, the protective cover 17 can also be directly fixed on the first housing 121 or the third housing 123 as long as it can cover the motor.

[0043] The detachable design makes the installation and disassembly of the protective cover 17 extremely convenient. Moreover, as a physical barrier, the protective cover 17 can, to a certain extent, isolate impurities in the external environment from directly contacting the internal equipment, and can resist external impacts, enhancing safety; while the design of the heat dissipation holes 171 provides a good ventilation and heat dissipation channel for the interior of the equipment while ensuring the protection function.

[0044] In this embodiment, the rear frame 2 includes two symmetrically arranged main rear frames 21, and the two main rear frames 21 are respectively installed on the two third housings 123. Among them, the two main rear frames 21 can be fixed on the third housings 123 in the two front main frames 12 through bolts and other parts. The rear frame 2 is used to support the rear wheels of the vehicle. And since the main rear frames 21 are independent and symmetric components, they can be installed and disassembled separately, making the assembly and maintenance process of the entire rear frame 2 simpler and faster. In addition, the design of the two independent main rear frames 21 provides more modification space and flexibility, and their sizes, shapes or materials can be adjusted according to needs to adapt to different load requirements or working environments.

[0045] A first shock-absorbing mounting seat 18 is connected between the two front main frames 12 of this embodiment, and a second shock-absorbing mounting seat 22 is connected between the two rear main frames 21. The first shock-absorbing mounting seat 18 and the second shock-absorbing mounting seat 22 are arranged opposite to each other.

[0046] By providing shock-absorbing mounting seats on the front main frame 12 and the rear main frame 21, the installation of the shock-absorbing system is facilitated, enabling it to absorb and disperse the impact force and vibration from the road surface, significantly reducing the vibration and noise of the vehicle body, and improving the comfort and stability of riding.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0048] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric motorcycle frame, characterized in that: The vehicle comprises a front frame and a rear frame, wherein the front frame comprises a front fork tube and two front main frames symmetrically arranged on the outer side walls of the front fork tube, and the two front main frames are connected by a plurality of reinforcing plates; the front main frame comprises a first frame body, a second frame body and a third frame body which are gradually reduced in size, the first frame body is connected to the front fork tube, the second frame body and the third frame body are respectively connected to two adjacent sides of the first frame body, and one of the inner angles of the first frame body, the second frame body and the third frame body converges to the same place; the rear frame is detachably connected to the third frame body.

2. The electric motorcycle frame according to claim 1, characterized in that: The first frame body has two mutually perpendicular frames, and two mounting plates for supporting batteries are arranged between the two first frame bodies, and the two mounting plates are respectively located on the two perpendicular frames.

3. The electric motorcycle frame according to claim 2, characterized in that: The two mounting plates are detachably mounted between the two first frames.

4. The electric motorcycle frame according to claim 1, characterized in that: The second frame is provided with at least two fixing blocks, each of which is provided with a fixing hole, and the two fixing blocks are arranged at intervals and are used together to support the vehicle seat frame.

5. The electric motorcycle frame according to claim 1, characterized in that: The third frame is provided with a first extension frame, the first frame is provided with a second extension frame, the first extension frame and the second extension frame are arranged at an interval and are used to support the motor together.

6. The electric motorcycle frame according to claim 5, characterized in that: The first extension frame is provided with a strip-shaped through hole.

7. The electric motorcycle frame according to claim 5, characterized in that: A protective cover is detachably connected between the first extension frame and the second extension frame, and a plurality of heat dissipation holes are provided on the protective cover.

8. The electric motorcycle frame according to claim 1, characterized in that: The rear frame comprises two symmetrically arranged rear main frames, and the two rear main frames are respectively mounted on the two third frames.

9. The electric motorcycle frame according to claim 8, characterized in that: A first shock-absorbing mounting seat is connected between the two front main frames, a second shock-absorbing mounting seat is connected between the two rear main frames, and the first shock-absorbing mounting seat and the second shock-absorbing mounting seat are arranged opposite to each other.

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