Motorcycle frame with detachable battery supporting part and electric motorcycle

Abstract

The utility model relates to the technical field of motorcycles, in particular to a motorcycle frame with a detachable battery supporting part, which comprises a left half frame and a right half frame, a battery bearing rod is detachably connected between the left half frame and the right half frame, and each of the left half frame and the right half frame comprises an upper main beam and a lower supporting piece. The two upper main beams are detachably connected at a vehicle head, and the upper main beam and the lower supporting piece on the same side are detachably connected; the lower supporting pieces are of a frame-shaped structure, the lower supporting pieces and the upper main beam are detachably connected from multiple positions, and the battery bearing rod is detachably connected between the two lower supporting pieces. The electric motorcycle comprises the motorcycle frame with the detachable battery supporting part. According to the scheme, the problem that in the prior art, storage and transportation of motorcycle frame parts occupy large space is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, in particular to a motorcycle frame and an electric motorcycle with detachable battery support parts. Background Technique

[0002] The motorcycle frame is not only the installation basis for various components of the motorcycle, but also plays a crucial role in the overall performance and safety of the motorcycle.

[0003] For the frame of an electric motorcycle, one of the most important parts is the bracket that supports the battery and the motor. In current motorcycle frames, considering the weight of the battery, there are cases where the originally integrally welded or integrally die-cast integral motorcycle frame (such as the electric motorcycle battery installation structure disclosed in CN215475543U in 2022, and the lightweight alloy motorcycle frame with the patent publication number CN219312953U disclosed in 2023) is designed as a split frame (such as an aluminum alloy frame structure with the patent publication number CN218751192U disclosed in 2023). The advantage of the integral frame is that the overall performance of the frame is good, and the strength and stability are higher. The advantage of the split frame is that after the frame is split, it occupies a smaller volume during storage and transportation, and the storage and transportation costs are lower. However, the current split frames only partially adopt a split structure. For example, in CN218751192U, only the upper part structure of the split aluminum alloy frame is shown, and the overall structure of the motorcycle frame is unknown.

[0004] In this field, the bracket structure for supporting the motor and the battery is still a structure where the lower bracket directly supports it. That is, even though the prior art has proposed a split structure for the upper frame, under the conventional structure of the lower bracket, that is, the structure for supporting the motor and the battery in the lower part of the motorcycle frame with the patent publication number CN219312953U, it can be separately manufactured as a whole and then welded or bolted to the split frame of the upper part.

[0005] However, this design situation makes the storage and transportation of the frame still occupy a relatively large space in the lower bracket, and the direct detachable connection of the lower bracket is not conducive to anti-theft. Thieves can directly disassemble the lower bracket and take away the battery. Summary of the Utility Model

[0006] The utility model aims to provide a motorcycle frame with detachable battery support parts to solve the problem of large occupied space for the storage and transportation of motorcycle frame parts in the prior art.

[0007] To achieve the above objective, the utility model adopts the following technical solutions:

[0008] A motorcycle frame with a detachable battery support part, comprising a left half-frame and a right half-frame. A battery support rod is detachably connected between the left half-frame and the right half-frame. Both the left half-frame and the right half-frame include an upper main beam and a lower support member. The two upper main beams are detachably connected at the front of the vehicle head, and the upper main beam and the lower support member on the same side are detachably connected.

[0009] The principle and advantages of this solution are as follows: When adopting this solution, by setting the left half-frame and the right half-frame to be splitable left and right, the frame is divided into a left half-frame, a right half-frame and a battery support rod. After the battery is supported in place, it is convenient to disassemble and install the battery by disassembling one side of the half-frame. Each half-frame further includes an upper main beam and a lower support member that can be split vertically, so that the lower support member can be independently disassembled from each half-frame. After the lower support member is disassembled, it is convenient to disassemble the corresponding motorcycle parts from the area vacated by the lower support member.

[0010] Compared with the prior art, in this solution, the entire frame is set as left and right half-frames. After being split left and right and stored separately, the occupied space volume is small, which greatly facilitates the storage and transportation of motorcycle frame parts.

[0011] In addition, the whole frame is a left and right half-frame, which is convenient for left and right assembly and also convenient to disassemble one side of the half-frame below to facilitate the disassembly and maintenance of the battery and other parts installed in the frame.

[0012] In addition, the lower support member can be disassembled separately, which facilitates the separate disassembly and assembly of motorcycle parts in the area vacated by the lower support member, further simplifying the difficulty of disassembly and assembly.

[0013] Preferably, as an improvement, the lower support member has a frame structure. The lower support member is detachably connected to the upper main beam at multiple places. The battery support rod is detachably connected between the two lower support members to improve the overall strength of the lower support member. At the same time, the frame-structured lower support member improves the protection performance of the battery side while facilitating the heat exchange between the battery side and the air, thereby contributing to improving the heat dissipation performance. In addition, the frame-structured lower support member also helps to beautify the appearance.

[0014] Preferably, as an improvement, the strength of the lower support member and the battery support rod is greater than that of the upper main beam to further ensure the reliable structural strength for supporting the battery.

[0015] Preferably, as an improvement, the upper main beam is made of aluminum alloy or magnesium alloy, and the lower support member is made of carbon fiber. Such material selection not only ensures the light weight of the frame but also ensures the strength of the load-bearing part of the frame. In addition, it also facilitates the production of various parts on the frame by machining or die-casting, improving the accuracy of the parts.

[0016] Preferably, as an improvement, a side limiting member is detachably connected to the inner side wall of the upper main beam. The side limiting member is used to clamp the left and right outer sides of the battery to form a restriction on the left and right positions of the battery.

[0017] Preferably, as an improvement, a front limiting member and a rear limiting member detachably connected between the left half-frame and the right half-frame are further included. The front limiting member and the rear limiting member are used to clamp the front and rear sides of the battery to form a restriction on the front and rear positions of the battery.

[0018] Preferably, as an improvement, each limiting member includes a protrusion protruding towards the side wall of the battery. The protrusion is opposite to a recessed area provided on the side wall of the battery to further increase the front, rear, left, and right limiting of the battery and prevent the battery from shaking. In addition, since the protrusion is provided inside the upper main beam, the limiting member and the protrusion cannot be seen from the outside of the motorcycle. When a thief wants to directly take out the battery after opening the battery compartment cover in the conventional way, the protrusion will be located in the recessed area, making it difficult for the thief to directly lift the battery. If the thief wants to steal the battery and does not understand the structure of this motorcycle, in order to avoid damage to the circuit or the battery, he will surely not use brute force to overcome the blockage of the protrusion and will have to disassemble the half-frame to complete the removal of the battery, which greatly increases the difficulty of theft and thus improves the safety.

[0019] Preferably, as an improvement, the protrusion is a protrusion with a hollow structure inside, so as to facilitate the formation of a buffer for the impact when the frame is impacted through the hollow protrusion and reduce the impact on the battery.

[0020] Semi-circular rings are provided on the upper main beam. The two semi-circular rings form a riser structure. Each semi-circular ring is provided with a through hole and a threaded hole. The through hole and the threaded hole are located on both sides of the riser structure. The through hole on one semi-circular ring is opposite to the threaded hole on the other semi-circular ring, so that when the upper main beams of the left and right half-frames are connected, the left and right half-frames are connected by inserting bolts into the opposite threaded holes and through holes. Since the through hole and the threaded hole on the same semi-circular ring are located on both sides of the riser structure, the bolts are tightened on both sides of the riser and in different directions to improve the centering degree and stability when the half-frames are connected.

[0021] The present utility model also provides an electric motorcycle, including a motorcycle frame to which the battery support part is detachably connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present utility model.

[0023] Figure 2 is Figure 1 front view of

[0024] Figure 3 is Figure 1 the top view of

[0025] Figure 4 is Figure 1 the three-dimensional structure schematic diagram after installing the battery and the motor thereon.

[0026] Figure 5 is Figure 4 the three-dimensional structure schematic diagram after rotating by an angle.

[0027] Figure 6 is Figure 4 the schematic diagram in which only the right half frame and the motor are not exploded and the rest of the parts are in an exploded state in

[0028] Figure 7 is Figure 6 the three-dimensional structure schematic diagram after rotating by an angle.

[0029] Figure 8 This is the three-dimensional structure schematic diagram of this embodiment only showing the battery and the surrounding limit members.

[0030] Figure 9 is Figure 8 the three-dimensional structure schematic diagram after rotating by an angle.

[0031] Figure 10 is Figure 8 the top view of (with the frame added).

[0032] Figure 11 This is the three-dimensional structure schematic diagram of this embodiment showing the front limit member, the side limit member, the battery support rod and the connection buckle structure.

[0033] Figure 12 This is the three-dimensional structure schematic diagram of the same rear limit member in different angles shown in the third embodiment of this example.

[0034] Figure 13 is Figure 4 the three-dimensional structure schematic diagram after installing the rear shock absorber and the rear suspension assembly thereon.

[0035] Figure 14 is Figure 13 the front view of

[0036] Figure 15 is Figure 13 the top view of

[0037] Figure 16 is Figure 14 the A-A cross-sectional view in

[0038] Figure 17 is Figure 15 the B-B cross-sectional view in

[0039] Figure 18 Figure showing the relationship between the motorcycle frame with detachable battery support parts and other components on the motorcycle in the fourth embodiment.

[0040] Figure 19 Front view of the electric motorcycle in the fourth embodiment. Detailed implementation manners

[0041] The following is a further detailed description through specific implementation manners:

[0042] The reference numerals in the attached drawings of the specification include: left half-frame 11, upper main beam 111, through hole 1111, threaded hole 1112, lower support member 112, right half-frame 12, battery support rod 13, connection buckle 131, guiding portion 1311, side limiting member 14, front limiting member 15, rear limiting member 16, front baffle 17, rear baffle 18, protrusion 141, battery 2, recessed area 21, motor 3, speed reducer 31, wheel 4, shock absorption system 5, rear shock absorber 51, rear suspension assembly 52.

[0043] As shown in the implementation example Figures 1 to 19 shown.

[0044] Embodiment 1

[0045] Combined with Figures 1 to 3 , a motorcycle frame with detachable battery support parts includes a left half-frame 11 and a right half-frame 12 connected by bolts, and a battery support rod 13 connected between the left half-frame 11 and the right half-frame 12.

[0046] Both the left half-frame 11 and the right half-frame 12 include an upper main beam 111 and a lower support member 112. The two upper main beams 111 are bolted together at the front of the vehicle head, and the upper main beam 111 and the lower support member 112 on the same half-frame are bolted together. The lower support member 112 is fixed on the outside of the upper main beam 111.

[0047] Furthermore, combined with Figure 6 and Figure 7 , semi-circular rings are integrally formed on the parts of the upper main beam 111 close to the vehicle head. The two semi-circular rings form a riser structure. Through holes 1111 and threaded holes 1112 are formed on each semi-circular ring. The through holes 1111 and the threaded holes 1112 are located on both sides of the riser structure. The through hole 1111 on one semi-circular ring is aligned with the threaded hole 1112 on the other semi-circular ring. When connecting the upper main beams 111 of the left and right half-frames 12, bolts are inserted into the aligned threaded holes 1112 and through holes 1111 to realize the connection of the left and right half-frames 12. Since the through holes 1111 and the threaded holes 1112 on the same semi-circular ring are located on both sides of the riser structure, the bolts are tightened on both sides of the riser and in different directions, so as to improve the centering degree and stability when the half-frames are connected.

[0048] Furthermore, the lower support member 112 is of a frame structure. The lower support member 112 is bolted to the upper main beam 111 at multiple locations. Specifically, it can be bolted at three locations, and the connection points of the three bolts form a triangle to improve the accuracy and stability of the connection.

[0049] Furthermore, two mounting holes are machined at the lower part of each lower support member 112, and each mounting hole corresponds to a battery support rod 13. The threaded section of the battery support rod 13 faces the mounting hole to facilitate the battery support rod 13 to fixedly connect the two side lower support members 112. The battery support rod 13 is used to mount the battery 2. The frame-shaped lower support member 112 not only plays a decorative role, but also provides side protection for the battery 2, and also improves the strength of the overall vehicle frame. In addition, it also facilitates the heat dissipation on the side of the battery 2 by using the frame structure.

[0050] Furthermore, the upper main beam 111 is made of aluminum alloy material, and the lower support member 112 is made of carbon fiber material with higher tensile strength and yield strength, which not only ensures the light weight of the vehicle frame, but also ensures the strength of the load-bearing part of the vehicle frame. In addition, it also facilitates the production of various parts on the vehicle frame by machining or die-casting, improving the accuracy of the parts.

[0051] Furthermore, in order to ensure the installation stability of the battery 2 placed on the motorcycle frame, simply relying on the support of the battery support rod 13 for the battery 2 is not enough. Figures 1 - 12 Combined with

[0052] it also includes side limit members 14, front limit member 15 and rear limit member 16 for restricting the shaking of the battery 2 in the motorcycle frame. The side limit members 14 include left side limit member 14 and right side limit member 14. The left and right side limit members 14 are respectively fixed to the inner side of the corresponding upper main beam 111 by bolts. The front limit member 15 is fixed between the left and right upper main beams 111 through the front baffle 17 (the front baffle 17 is bolted to the left and right upper main beams 111, and the front limit member 15 is bolted to the front baffle 17), and the rear limit member 16 is fixed between the left and right upper main beams 111 through the rear baffle 18 (the rear baffle 18 is bolted to the left and right upper main beams 111, and the rear limit member 16 is bolted to the rear baffle 18). The left side limit member 14 and the right side limit member 14 are used to limit the side of the battery 2 placed on the battery support rod 13, and the left side limit member 14 and the right side limit member 14 are in contact with the left and right outer side walls of the battery 2; the front limit member 15 and the rear limit member 16 are located outside the front and rear sides of the battery 2 and are in contact with the front / rear sides of the battery 2 respectively, so as to limit the battery 2 through the limit members on the left, right, front and rear sides to prevent the battery 2 from shaking in the frame.The left limiting member 14, the right limiting member 14, the front limiting member 15, and the rear limiting member 16 all include a protrusion 141 protruding towards the side wall of the battery 2. The protrusion 141 faces a recessed area 21 provided on the side wall of the battery 2. On the housing of the battery 2, in order to enhance the protection of the internal battery 2 body and improve the heat dissipation performance of the battery 2, the outer shell of the battery 2 of the motorcycle in this embodiment is processed with recessed areas 21 on the side walls around. The recessed areas 21 are strip-shaped to further increase the front-back, left-right limiting of the battery 2 and prevent the battery 2 from shaking. In addition, since the protrusions 141 are all arranged close to the battery 2 side, and there are upper main beams 111 / front baffle 17 / rear baffle 18 blocking outside the protrusions 141, it is difficult to see the surrounding limiting members and the protrusions 141 from the outside of the motorcycle. When a thief wants to directly take out the battery 2 after opening the battery 2 hatch cover in the conventional way, the protrusions 141 will be located in the recessed areas 21, which will block the thief's difficulty in directly taking away the battery 2. If a thief wants to steal the battery 2, without understanding the structure of this motorcycle, in order to avoid circuit damage or battery 2 damage, he will surely not use brute force to overcome the block of the protrusions 141, but has to disassemble the half-frame to complete the removal of the battery 2, which greatly increases the difficulty of theft and thus improves the safety.

[0053] In addition, in order to further reduce the impact of vibration on the battery 2 during driving, a connection buckle 131 is buckled on the battery support rod. The battery 2 acts directly on the connection buckle 131. The connection buckle 131 has at least two spaced support areas in the length direction. The battery 2 is supported only in the support areas through the support areas, reducing the contact area between the bottom of the battery 2 and the connection buckle 131, thereby further reducing the transmission of vibration to the battery 2. In addition, the connection buckle 131 is made of plastic material. Preferably, it is made of PP material with good toughness. In addition, guiding parts 1311 facing the battery 2 direction are integrally formed at both ends of the connection buckle 131. The guiding parts 1311 make the whole connection buckle 131 fit the battery 2 in a U-shaped structure, which not only forms a guide when the battery 2 is placed downward onto the battery support rod 13, but also limits the left and right sides of the battery 2.

[0054] Furthermore, in combination with Figure 8 、 Figure 9 and Figure 11 ,the battery support rod 13 is made of stainless steel and has a hollow rod structure. Threaded sections are processed at both hollow ends of the battery support rod 13 so that the battery support rod 13 is bolted to the left half-frame 11 and the right half-frame 12 through bolts.

[0055] Furthermore, in order to improve the support strength of the battery support rod 13, the outer contour cross-section of the battery support rod 13 is set to a square structure.

[0056] Further, the number of the front limit members 15 is two. The two front limit members 15 are vertically arranged and parallel to each other, so that when the motorcycle is running, the air flow can have a larger contact area with the front side of the battery 2. The front baffle 17 is provided with heat dissipation holes for the air to pass through, and the heat dissipation holes are located between the two front limit members 15.

[0057] Further, the left and right side limit members 14 and the rear limit member 16 each have at least two protrusions 141 to improve the limiting force on the battery 2.

[0058] The left and right side limit members 14 match the inner structural contour of the upper main beam 111. On the one hand, it is convenient for the accurate positioning and installation of the side limit members 14. On the other hand, after the upper main beam 111 is installed, the left and right side limit members 14 are completely blocked by the upper main beam 111. On the premise of ensuring that the appearance is not affected, the hidden left and right side limit members 14 can improve the safety of the motorcycle and increase the difficulty of stealing the battery 2.

[0059] It can be seen that in the above solution, the battery 2 is supported by the battery support rod 13 below. At the same time, the battery 2 is also restricted from being taken out in a concealed manner by the limit members that are recessed into the recessed area 21 around the battery 2. Because whether the battery 2 is taken out upward or downward, the middle recessed area 21 is always limited by the protrusions 141 protruding towards the battery 2. When the conventional battery 2 is directly taken out from the upper battery cover of the battery 2, it is difficult to take out the battery 2.

[0060] To remove the battery 2, simply disassembling the battery support member in order to take out the battery 2 from below the battery 2 will not be possible because the vertical distance between the motor 3 and the vehicle frame is insufficient. In addition, since the protrusions 141 are still recessed into the recessed area 21, it further limits the difficulty of taking out the battery 2.

[0061] Only by disassembling the entire left and right half vehicle frames 12, for example, completely disassembling the left half vehicle frame 11 from the right half vehicle frame 12, which requires the disassembly between the upper main beams 111 and the disassembly of the lower support member 112 and the battery support rod 13. When one side of the half vehicle frame is disassembled, the battery 2 can be conveniently taken out horizontally, and it is convenient for the maintenance of other components on the motorcycle vehicle frame such as the motor 3, the reduction structure, the controller, etc. If the battery 2 is taken out horizontally, it provides a larger operating space for the maintenance of other components and improves the convenience of maintenance.

[0062] The battery 2 is taken out in a translational manner, which also makes it unnecessary to lift the battery 2 upward as in the prior art, greatly reducing the labor intensity of taking out the battery 2.

[0063] In addition, in this embodiment, the entire vehicle frame is set as the left and right half vehicle frames 12. After being split left and right and stored separately, the occupied space volume is small, which greatly facilitates the storage and transportation of the motorcycle vehicle frame components.

[0064] Example 2

[0065] Combined with Figures 8 to 11 ( Figure 16 and Figure 17 can also be used in this embodiment), compared with Example 1, the following improved design is made for the structure of the limiting member in this embodiment:

[0066] All the limiting members in Example 1 (the side limiting member 14, the front limiting member 15 and the rear limiting member 16) are made of plastic limiting members. The limiting members exist in the form of limiting plates. Each protrusion 141 of the limiting plate is a protrusion 141 with a hollow structure inside. The hollow structure plus the plastic material enable the plastic protrusion 141 to have a deformation space when the motorcycle frame is impacted, thereby forming a buffer for the impact and reducing the impact on the battery 2.

[0067] In addition, the existence of the protrusion 141 makes there be a large distance between the four sides of the battery 2 and the upper main beam 111 and the lower support member 112, avoiding the direct transfer of the heat of the battery 2 to the semi-frame. In addition, the heat conduction performance of the plastic limiting plate is relatively worse than that of metal. The heat of the battery 2 is easily exchanged with the air through the hollow areas around to achieve temperature reduction, ensuring that the temperature of the semi-frame will not be too high when the motorcycle is working, improving the comfort, and at the same time enabling the frame to have sufficient safety protection for the battery 2.

[0068] Example 3

[0069] Combined with Figures 12 to 17 , in this embodiment, a more detailed optimized design is carried out for the specific structure of each limiting member: the rear baffle 18 for installing the rear limiting member 16 is made of metal. The rear baffle 18 is also used for installing the top end of the shock absorber. The rear limiting member 16 extends downward from the battery 2 area to the side of the motor 3 of the motorcycle, so as to share the vibration brought from the motorcycle through the relatively large rear limiting plate 16. And the shock absorber is directly installed on the rear baffle 18, and the rear baffle 18 is directly connected to the upper main beam 111 and the rear limiting plate 16, thereby quickly damping the upper main beam 111 and the rear limiting member 16 and improving the damping effect.

[0070] The rear baffle 18, the front baffle 17, and the battery support rod 13 connect the left and right semi-frames, thereby improving the overall strength of the frame.

[0071] In addition, the large-sized rear limiting plate 16, in addition to the limiting function and the function of improving damping, also has the function of guiding the airflow during the running of the motorcycle. After the rear limiting plate extends to the side of the motor 3, the airflow passing through the gap between the battery 2 and the motor 3 is guided by the rear limiting plate to flow along the side of the motor 3 or directly blocks the direct discharge of the airflow, which helps to increase the residence time of the airflow around the motor 3, thereby improving the heat dissipation performance on the side of the motor 3.

[0072] Embodiment 4

[0073] Combined with Figure 18 and Figure 19 , Embodiment 4 provides an electric motorcycle, including a motorcycle frame with a detachable battery 2 support part according to any one of Embodiments 1 to 4, further including a battery 2, a transmission system, a running system, and a shock absorption system 5. The battery 2 can be placed on the battery support rod 13 of the motorcycle frame. The transmission system includes a motor 3 and a speed reducer 31. The battery 2 is used to supply power to the motor 3, the motor 3 drives the speed reducer 31 to transmit power, and the output of the speed reducer 31 drives the wheels 4 of the running system to rotate. The shock absorption system 5 is used to shock-absorb the motorcycle. The shock absorption system 5 includes a front shock absorber system and a rear shock absorption system 5. The front shock absorption system 5 is used to shock-absorb the front wheels 4. The rear shock absorption system 5 includes a rear shock absorber 51 and a rear suspension assembly 52. One end of the rear shock absorber 51 is rotatably connected to the rear suspension assembly 52, and the other end is rotatably connected to the rear baffle 18.

[0074] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A motorcycle frame with detachable battery support parts, comprising a left half frame and a right half frame, characterized in that: A battery supporting rod is detachably connected between the left half frame and the right half frame. Both the left half frame and the right half frame include an upper main beam and a lower supporting piece. The two upper main beams are detachably connected at the front of the vehicle, and the upper main beam and the lower supporting piece on the same side are detachably connected.

2. A motorcycle frame with detachable battery support parts according to claim 1, characterized in that: The lower supporting member is of a frame-shaped structure, and is detachably connected to the upper main beam at multiple locations, and the battery supporting rod is detachably connected between the two lower supporting members.

3. A motorcycle frame with detachable battery support parts according to claim 2, characterized in that: The strength of the lower supporting member and the battery supporting rod is greater than the strength of the upper main beam.

4. A motorcycle frame with detachable battery support parts according to claim 3, characterized in that: The upper main beam is made of aluminum alloy or magnesium alloy, and the lower supporting piece is made of carbon fiber.

5. The motorcycle frame with detachable battery support parts according to claim 1, characterized in that: The inner side wall of the upper main beam is detachably connected with a side limiter, and the side limiter is used to be clamped on the left and right outer sides of the battery.

6. A motorcycle frame with detachable battery support parts according to claim 5, characterized in that: It also includes a front limiting member and a rear limiting member which are detachably connected between the left half frame and the right half frame. The front limiting member and the rear limiting member are used to be clamped on the front and rear side surfaces of the battery.

7. A motorcycle frame with detachable battery support parts according to claim 6, characterized in that: Each limiting member includes a protrusion protruding toward the battery side wall, and the protrusion is opposite to the recessed area provided on the battery side wall.

8. A motorcycle frame with detachable battery support parts according to claim 7, characterized in that: The protrusion is a protrusion with a hollow structure inside.

9. The motorcycle frame with detachable battery support parts according to claim 1, characterized in that: The upper main beam is provided with a half-embracing ring, and the two half-embracing rings form a vertical tube structure. Each half-embracing ring is provided with a through hole and a threaded hole, and the through hole and the threaded hole are located on both sides of the vertical tube structure. The through hole on one half-embracing ring is opposite to the threaded hole on the other half-embracing ring.

10. An electric motorcycle, characterized in that: A motorcycle frame comprising a detachable battery support part as claimed in any one of claims 1 to 9.

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