Motorcycle frame compatible with driving motor and electric motorcycle

Abstract

The motorcycle frame compatible with the driving motor comprises a front pipe, a surrounding cage and two sets of motor bases, the surrounding cage constructs a motor installation space located behind the front pipe in an inclined mode, and the motor installation space is provided with a motor passing opening formed in an open mode. The two sets of motor bases are arranged in the length direction of the motor passing opening at intervals and used for being connected with the two opposite half sides of the driving motor respectively. According to the motorcycle frame compatible with the driving motor, the installation reliability and the disassembly and assembly convenience of the driving motor can be both considered, and the number of the motor bases is smaller than that of similar products; therefore, the disassembly and assembly actions during disassembly and assembly of the driving motor can be reduced, the disassembly and assembly time can be shortened, the relative positions of the motor bases and the driving motor can be easily and quickly found when the driving motor is installed, the two motor bases arranged at intervals ensure that the driving motor is reasonably stressed, and the freedom degree of vibration and shaking of the driving motor is fully limited.

Description

Technical Field

[0001] This utility model relates to the field of transportation technology, and in particular to a motorcycle frame and electric motorcycle compatible with a drive motor. Background Technology

[0002] With the increasing promotion of new energy technologies, more and more electric motorcycles that use drive motors instead of engines and are equipped with power batteries to provide power to the drive motors are entering the market.

[0003] The installation of drive motors in electric motorcycles needs to meet both reliability and ease of installation and removal requirements, but current electric motorcycles often fail to meet these requirements simultaneously. Utility Model Content

[0004] In view of this, the present invention provides a motorcycle frame and electric motorcycle that are compatible with drive motors, which can take into account both the installation reliability and the ease of disassembly of drive motors.

[0005] The motorcycle frame compatible with the drive motor of this utility model includes a front tube, a cage, and two sets of motor mounts. The cage constructs a motor mounting space located diagonally behind the front tube. The motor mounting space has an open motor passage. The two sets of motor mounts are arranged at intervals along the length direction of the motor passage and are used to connect the two opposite halves of the drive motor, respectively.

[0006] Compared with the prior art, the motorcycle frame compatible with the drive motor of this utility model can take into account both the installation reliability and the ease of disassembly and assembly of the drive motor. The number of motor mounts is less than that of similar products, thus reducing the disassembly and assembly actions when disassembling and assembling the drive motor, shortening the time required for disassembly and assembly, and making it easy to quickly and accurately locate the relative position of the motor mount and the drive motor when installing the drive motor. The two spaced motor mounts ensure that the drive motor is subjected to reasonable force and fully restrict the freedom of vibration and shaking of the drive motor.

[0007] In some embodiments, the motor access opening is formed at the bottom of the cage and faces downward; and / or, the entire motor mounting space is located within the enclosure space of the cage; and / or, both sets of motor mounts are provided with pin holes, the pin holes being horizontal in direction and perpendicular to the length direction of the motor access opening.

[0008] In some embodiments, the enclosure comprises multiple BIK500 steel pipes that enclose and form a space for motor installation.

[0009] In some embodiments, the cage includes a frame that encloses the space for motor installation. The frame includes an upper beam, a rear beam, a bottom beam, and a lower beam. The two ends of the upper beam are respectively connected to the top of the front tube and the rear beam. The bottom end of the rear beam is connected to the rear end of the bottom beam. The two ends of the lower beam are respectively connected to the front end of the front tube and the front end of the bottom beam. The two sets of motor mounts are a front mount on the lower beam and a rear mount on the rear beam.

[0010] In some embodiments, there are two sets of frames, which are spaced apart along the width direction of the motor passage. The motor passage is formed between two bottom beams. The front hanger includes two front seats and the rear hanger includes two rear seats. The two front seats are spaced apart along the width direction of the motor passage, and the two rear seats are spaced apart along the width direction of the motor passage.

[0011] In some embodiments, the distance d1 between the two front seats is less than the distance d2 between the two rear seats, the difference between d1 and d2 is Δd, and an accommodating gap is formed between the two rear seats to accommodate the drive motor lifting lug and the wheel swing arm, wherein the total width of the end of the wheel swing arm placed in the accommodating gap is Δd; and / or, the cage also includes a support member connecting the two bottom beams, the support member defining the motor passage, when both the front and rear seats are connected to the drive motor, the support member is spaced apart from the drive motor, when the front seat is disengaged from the drive motor, the motor mounting space allows the drive motor to rotate around the rear seat until it abuts against the support member.

[0012] In some embodiments, the front hanger is fixed with a seat support, the seat support having a connecting pipe edge that connects to the outer wall of the lower beam, and the width of the seat support increases from the front hanger towards the connecting pipe edge.

[0013] In some embodiments, the rear beam has a recessed groove for placing the rear hanger, and the rear hanger is fixedly fitted to the inner wall of the recessed groove; or, the rear hanger is welded to the inner wall of the recessed groove.

[0014] The electric motorcycle of this utility model includes a drive motor and a motorcycle frame compatible with the drive motor. The drive motor includes a housing, and two opposite halves of the housing are respectively provided with lifting lugs, and the two lifting lugs are respectively connected to two motor mounts.

[0015] In some embodiments, the drive motors are all located within the enclosure of the cage; and / or, the electric motorcycle also includes a frame cover that covers the openings in the cage and closes the motor mounting space. Attached Figure Description

[0016] Figure 1 This is a side view of an electric motorcycle according to an embodiment of the present invention in a low riding position.

[0017] Figure 2 This is a perspective view of an electric motorcycle according to an embodiment of the present invention in a low riding position.

[0018] Figure 3 This is a partial perspective view of a motorcycle frame compatible with a drive motor, according to an embodiment of the present invention, from a first-view perspective.

[0019] Figure 4 This is a partial perspective view of a motorcycle frame compatible with a drive motor, according to an embodiment of the present invention, from a second-view perspective.

[0020] Figure 5 This is a partial three-dimensional view of the structure of an electric motorcycle according to an embodiment of the present invention, viewed from a first perspective.

[0021] Figure 6 This is a partial structural perspective view of an electric motorcycle according to an embodiment of the present invention, taken from a second-view perspective.

[0022] Figure 7 A partial structural perspective view of a motorcycle frame compatible with a drive motor, according to an embodiment of the utility model, from a third-person perspective.

[0023] Figure 8 A partial structural side view of a motorcycle frame compatible with a drive motor, according to an embodiment of the utility model, from a fourth-person perspective.

[0024] Figure 9 This is a side view of an electric motorcycle in a high seating position according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 100, Electric motorcycle; 10, Front tube; 20, Frame; 201, Motor mounting space; 202, Battery mounting space; 21, Load-bearing frame; 211, Upper beam; 212, Rear beam; 221, Bottom beam; 222, Lower beam; 23, Load-bearing seat; 231, Front load-bearing seat; 2311, First mounting part; 2312, Second mounting part; 232, Rear load-bearing seat; 2321, Third mounting part; 2322, Fourth mounting part; 2323, Fifth mounting part; 2324, Sixth mounting part; 24, Support component; 25, Reinforcing column; 26, Reinforcing beam; 27, Front protective shell; 28. Seat support bracket; 281, First load-bearing tube; 282, Second load-bearing tube; 30, Motor mount; 31, Front hanger; 311, Front seat body; 312, Seat body bracket; 32, Rear hanger; 321, Rear seat body; 33, Pin hole; 40, Suspension support; 41, Suspension plate; 411, Front support end; 412, Rear support end; 42, Limiting edge; 421, Hook plate groove; 43, Flared flange; 50, Side limiting component; 51, Irregular shape; 511, Arc groove; 52, Partition; 60, Drive motor; 611, Front hanger lug; 612, Rear hanger lug; 70, Power battery; 80, Wheel swing arm; 90, Frame cover. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] This utility model provides a motorcycle frame compatible with a drive motor, and also provides an electric motorcycle 100 including a drive motor 60, a power battery 70, and the motorcycle frame compatible with the drive motor of this utility model. The drive motor 60 replaces the engine to drive the wheels, and the power battery 70 provides electrical energy to the drive motor 60. Figures 1-2 This illustration shows an electric motorcycle 100 according to one embodiment of the present invention. Figures 3-4 This illustration shows a motorcycle frame compatible with a drive motor, according to one embodiment of the present invention.

[0029] The motorcycle frame compatible with the drive motor of this utility model (hereinafter referred to as the motorcycle frame for ease of description) is compatible with the installation of the drive motor 60 and the power battery 70, and is compatible with multiple sitting heights. Therefore, the electric motorcycle 100 of this utility model has a sitting height adjustment function, which changes the seat height so that the electric motorcycle 100 can adapt to consumers of different body sizes.

[0030] See Figures 1-4 Please refer to the following as well. Figures 5-6 The motorcycle frame includes a front tube 10, a cage, two sets of motor mounts 30, suspension components 40, side limiters 50, and a seat support. The front fork of the motorcycle 100 powered by the front tube 10 passes through and allows the front fork to rotate within the front tube 10. The cage is fixedly connected to the front tube 10 as a whole. The cage includes two sets of frames 20 connected to the outer side wall of the front tube 10. Each set of frames 20 includes a load-bearing frame 21, a bottom beam 221, and a lower beam 222. The load-bearing frame 21 includes an upper beam 211 and a rear beam 212. The two ends of the upper beam 211 are respectively connected to the top of the front tube 10 and the top of the rear beam 212. The bottom beam 221 and the lower beam 222 are located on the side of the upper beam 211 that is relatively close to the ground. The bottom end of the rear beam 212 is connected to the rear end of the bottom beam 221. The two ends of the lower beam 222 are respectively connected to the front end of the front tube 10 and the front end of the bottom beam 221. The top and bottom ends of the rear beam 212 are respectively the end of the rear beam 212 that is relatively far from the ground and the end that is relatively close to the ground. The two bottom beams 221 form the bottom side of the motorcycle frame that is closest to the ground. The seat support is located on the side of the cage that is relatively far from the ground and is equipped with a seat.

[0031] See Figures 3-4The enclosure structure creates a motor mounting space 201 and a battery placement space 202 located diagonally rear of the front tube 10. "Diagonally rear of the front tube 10" refers to the area of ​​the front tube 10 that is relatively close to the rear wheel of the electric motorcycle 100 and is lower than the front tube 10 in the vertical direction. The battery placement space 202 is located between the front tube 10 and the motor mounting space 201. The motor mounting space 201 has a motor passageway open to the ground, specifically located between two bottom beams 221. The battery placement space 202 has a battery passageway open upwards, facing away from the ground, specifically located between two upper beams 211. The two sets of motor mounts 30 are a front mount 31 and a rear mount 32. The front mount 31 includes two front seat bodies 311, which are fixedly connected to two lower beams 222. The rear mount 32 includes two rear seat bodies 321, which are fixedly connected to two rear beams 212. The front suspension bracket 31 and the rear suspension bracket 32 ​​are arranged at intervals along the length direction of the motor passage. The length direction of the motor passage is the length direction of the bottom beam 221, and it is perpendicular to the rear wheel axis direction of the electric motorcycle 100. When the electric motorcycle 100 travels in a straight line on a horizontal road, the length direction of the bottom beam 221 can be a horizontal straight line.

[0032] See Figures 5-6 The drive motor 60 includes a cylindrical housing and two lifting lugs, a front lifting lug 611 and a rear lifting lug 612. The front lifting lug 611 and the rear lifting lug 612 protrude from two opposite halves of the housing, each half forming a half-circumference of the housing. The two halves do not overlap and together constitute the entire outer circumference of the housing. The front lifting lug 611 and the front lifting base 31 are detachably connected via a threaded connector or a quick-connect connector, and the rear lifting lug 612 and the rear lifting base 32 are also detachably connected via a threaded connector or a quick-connect connector. Preferably, both the front hanger 31 and the rear hanger 32 are provided with pin holes 33. The axis of the pin holes 33 extends horizontally and is perpendicular to the two bottom beams 221. The pin holes 33 allow bolts or quick-release pins to pass through and extend into the front hanger lug 611 and the rear hanger lug 612. When quick-release pins pass through the pin holes 33 and extend into the front hanger lug 611 and the rear hanger lug 612, a locking mechanism can also be provided to lock the quick-release pins, thereby limiting the axial freedom of the quick-release pins to prevent them from falling off.

[0033] The motor access port allows the drive motor 60 to pass through during disassembly and assembly, enabling the drive motor 60 to enter or leave the motor mounting space 201. After the front lifting lug 611 and the front mounting bracket 31 are separated, and the rear lifting lug 612 and the rear mounting bracket 32 ​​are separated, the drive motor 60 can be lifted and lowered to allow it to leave the motor mounting space 201 through the motor access port. Lowering the drive motor 60 saves time in removing it and reduces the height required to lower it to the ground, facilitating quick disassembly and installation by users and maintenance personnel. The two spaced-apart motor mounts 30 ensure reasonable stress distribution on the drive motor 60 after installation, effectively mitigating vibration and shaking. Optionally, the front lifting lug 611 and the rear lifting lug 612 are symmetrically arranged on two opposite halves of the drive motor 60, with the front lifting lug 611, the rear lifting lug 612, and the output shaft of the drive motor 60 approximately at the same vertical height. With this configuration, the front lug 611 and the rear lug 612 apply symmetrical forces to the drive motor 60 through the front mounting bracket 31 and the rear mounting bracket 32, respectively. As a result, the front mounting bracket 31 and the rear mounting bracket 32 ​​can share the external force equally, reducing the risk of deformation or overload of the motor mount 30.

[0034] See Figures 1-2 , Figures 5-6 The power battery 70 has a handle at the bottom, which allows the user to hold and move the power battery 70 through the battery opening, thereby removing or placing the power battery 70 into the battery placement space 202. The suspension member 40 and the cage are separate molded structures and are fixedly installed. The side limiting member 50 and the cage are separate molded structures and are fixedly installed. The side of the suspension member 40 that is relatively away from the ground faces the battery opening. The side limiting member 50 is located behind the front tube 10, and both the front tube 10 and the side limiting member 50 are tilted backward. An acute angle α is formed between the axis of the front tube 10 and the horizontal plane, with the opening facing the rear of the front tube 10. An acute angle β is formed between the side limiting member 50 and the horizontal plane, with the opening facing the rear of the side limiting member 50. The side limiting member 50 is located behind the front tube 10 and is relatively close to the rear wheel of the electric motorcycle 100. The angles α and β can be equal or unequal.

[0035] When the power battery 70 is positioned within the battery mounting space 202, the suspension member 40 acts on the bottom of the power battery 70, and the side limiting member 50 acts on the side of the power battery 70 facing away from the front tube 10. The suspension member 40 and the side limiting member 50 work together to restrict the freedom of movement of the power battery 70, preventing the power battery 70 from swaying when driving the electric motorcycle 100. When the user holds the handlebars and moves the power battery 70 through the battery passage, the side limiting member 50 can act on the side of the power battery 70 in a sliding contact manner. The side limiter 50 guides the power battery 70 to move into or out of the battery placement space 202 along the tilt direction of the side limiter 50. The tilt direction of the side limiter 50 allows the side limiter 50 to apply a supporting force to the side of the power battery 70, which can reduce the lifting force exerted by the user on the handle, making it easier and less strenuous for the user to pick up and put down the power battery 70. In addition, the guiding effect of the side limiter 50 on the power battery 70 can protect the power battery 70 from hitting the cage or scratching the frame 20 due to tilting, thus protecting the power battery 70.

[0036] In some embodiments, the cage includes multiple BIK500 steel pipes that enclose and form a motor mounting space 201 and a battery placement space 202. Optionally, the frame 20 can be formed by welding multiple BIK500 steel pipes; for example, the upper beam 211, rear beam 212, bottom beam 221, and lower beam 222 can all be made of BIK500 steel pipes. This arrangement reduces the weight of the cage while ensuring its structural strength and durability, thus achieving a lightweight motorcycle frame.

[0037] See Figures 2-6 The upper beam 211 protrudes from the side of the front tube 10 and extends behind it. Specifically, the height of the upper beam 211 from the ground decreases in a direction away from the front tube 10. The upper beam 211 is equipped with a support seat 23, which includes multiple sets of mounting parts. Each set of mounting parts defines a mounting position as a single unit and is detachably connected to the seat cushion base. The height of these mounting positions from the ground decreases along the outer extension direction of the support frame 21, which includes the extension direction of the upper beam 211. The upper beam 211 extends away from the front tube 10 and gradually approaches the ground. When the seat cushion base is connected to any set of mounting parts, the position of the seat cushion base at that moment is the mounting position of that set of mounting parts. Therefore, the motorcycle frame provides multiple mounting positions corresponding to different seating heights by setting multiple mounting parts. Thus, the motorcycle frame can provide a variety of seating heights. By switching the mounting part connected to the seat support, the seat support can be moved from the mounting position defined by the mounting part before removal to the new mounting position, and the seat height on the seat support will also change accordingly. Figure 1 and Figure 9 The illustrations show two different seating heights for the electric motorcycle 100. Figure 1compared to, Figure 9 The electric motorcycle shown has an increased seating height.

[0038] Optionally, the motor mounting space 201 is entirely located within the enclosure space of the cage, thus ensuring that the drive motor 60 is entirely located within the enclosure space of the cage. Preferably, see [reference needed]. Figure 9 In some embodiments, the motorcycle frame also includes a frame cover 90, which is detachably disposed on the perforated opening of the cage to close the motor mounting space 201. The frame cover 90 improves the aesthetics of the electric motorcycle 100 and protects the drive motor 60. When it is necessary to remove the drive motor 60, the frame cover 90 can be removed from the cage first. Then, a removal tool can be inserted into the motor mounting space 201 through the perforated opening and force can be applied to the connector between the motor mount 30 and the lifting lug. After the drive motor 60 is reinstalled in the motor mounting space 201, the frame cover 90 can be replaced on the perforated opening of the cage. The drive motor 60, which is entirely within the enclosure of the cage, will not interfere with the frame cover 90.

[0039] See Figures 3-6 In some embodiments, the enclosure also includes support members 24, reinforcing columns 25, and reinforcing beams 26 disposed between the two sets of frames 20. Specifically, the two ends of the support member 24 are respectively connected to two rear beams 212, or the two ends of the support member 24 can be respectively connected to two bottom beams 221. The two ends of the reinforcing column 25 are respectively connected to two upper beams 211, or the two ends of the reinforcing column 25 can be respectively connected to two rear beams 212. The two ends of the reinforcing beam 26 are respectively connected to two lower beams 222. With this arrangement, the distance between the two sets of frames 20 is fixed, and the rigidity and strength of the entire enclosure are significantly improved. The support member 24, reinforcing column 25, and reinforcing beam 26 can be BIK500 steel pipes. The support member 24 and reinforcing column 25 can be two columnar structures extending in a horizontal straight line, and their length direction can be perpendicular to the length direction of the bottom beam 221. The length direction of the support member 24 and the reinforcing column 25 can be used as the width direction of the motor passage and the battery passage. Therefore, the two sets of frames 20 are spaced apart along the width direction of the motor passage, the two front seats 311 are spaced apart along the width direction of the motor passage, and the two rear seats 321 are spaced apart along the width direction of the motor passage.

[0040] The support member 24 defines a motor passage, which is formed on the side of the support member 24 facing away from the rear wheel of the electric motorcycle 100. In addition, the support member 24 can also be used to temporarily support the drive motor 60. When the front hanger 31 and the rear hanger 32 are respectively connected to the front hanger 611 and the rear hanger 612 of the drive motor 60, the support member 24 and the drive motor 60 are spaced apart and do not contact each other. When the front hanger 31 and the front hanger 611 are separated, the drive motor 60 can rotate around the center line of the rear hanger 32 within the motor mounting space 201 until the drive motor 60 abuts against the support member 24. The center line of the rear hanger 32 is the axis of the pin hole 33 opened in the rear hanger 32. This embodiment limits the following: When disassembling the drive motor 60 and the motorcycle frame, first disassemble the front hanger 31 and the front hanger lug 611, then drive the drive motor 60 to rotate around the center line of the rear hanger 32. The transmission component connected to the output shaft of the drive motor 60, such as the transmission sprocket, can rotate with the rotation of the drive motor 60. At this time, the transmission chain around the transmission sprocket changes from a tensioned state to a relaxed state. The support member 24 temporarily supports the drive motor 60, making it convenient for the user to continue disassembling the rear hanger 32 and the rear hanger lug 612 without having to manually lift the drive motor 60 to apply force to the disassembly and assembly tools.

[0041] See again Figures 1-3 , Figures 5-6 The distance between the two front seat bodies 311 connected to the two lower beams 222 is d1, and the distance between the two rear seat bodies 321 connected to the two rear beams 212 is d2, where d1 < d2 and the difference between d2 and d1 is Δd. A clearance is formed between the two rear suspension seats 32. The electric motorcycle 100 also includes a wheel swing arm 80 with a rear wheel mounted on it. The rear end of the wheel swing arm 80 is provided with a wheel bearing for connecting the rear wheel. The two front ends of the wheel swing arm 80 extend into the space between the two rear suspension seats 32. The drive motor 60 The rear hanger 612 has two front ends of the wheel swing arms 80 at its two ends. At this time, the rear hanger 612 and the front ends of the two wheel swing arms 80 located at both ends of the rear hanger 612 are all within the receiving gap and are pierced by the same pin. The two ends of this pin extend into the pin holes 33 of the two rear hanger seats 32, thus allowing the wheel swing arms 80 to rotate around the center line of the rear hanger seat 32. The total width of the ends of the wheel swing arms 80 within the receiving gap is Δd, which is the sum of the widths of the two front ends of the wheel swing arms 80. This configuration allows the wheel swing arms 80 to be rotatably connected to the cage and the drive motor 60 to be installed simultaneously through a single pin, simplifying the structure of the motorcycle frame and the electric motorcycle 100 and reducing the production cost of the motorcycle frame.

[0042] Further, see Figures 3-4The front mount 31 also includes a seat bracket 312. One side of the seat bracket 312 is fixedly connected to the front mount 311, and the other side of the seat bracket 312 forms a connecting pipe edge, which is fixedly connected to the outer wall of the lower beam 222. The seat bracket 312 extends into the motor mounting space 201 relative to the lower beam 222. The two seat brackets 312, which are respectively connected to the two lower beams 222, are close to each other, thereby forming a gap of size d1 between the two front mounts 311 connected to the two seat brackets 312. Optionally, the seat bracket 312 and the front mount 311 are integrally formed, and the seat bracket 312 is welded and fixed to the lower beam 222. The width of the seat bracket 312 changes gradually from the end of the seat bracket 312 connected to the front mount 311 to the connecting pipe edge. With this configuration, when the front lug 611 of the drive motor 60 is connected to the front seat 311, the force of the drive motor 60 acting on the lower beam 222 through the front hanger 31 is distributed at the connection between the lower beam 222 and the pipe side. The increased length of the pipe side helps to disperse the reaction force on the lower beam 222, thereby reducing the stress at the connection between the lower beam 222 and the pipe side and ensuring that the connection of the front hanger 31 is reliable.

[0043] Further, see Figures 3-6 The rear beam 212 and the rear hanger 32 are separately molded structures. The rear beam 212 has a recessed groove, which allows the rear hanger 32 to be fixedly installed within it. A fixed fit can be formed between the rear hanger 32 and the inner wall of the recessed groove, thereby achieving a fixed connection between the rear hanger 32 and the rear beam 212. The rear hanger 32 and the inner wall of the recessed groove can also be welded together for fixation. The structure of the rear hanger 32 is relatively complex. Using separate molding for the rear beam 212 and the rear hanger 32 can reduce the molding difficulty of the motorcycle frame and the cost of the production process.

[0044] See Figures 1-2 , Figures 5-6 See also Figures 7-8The suspension member 40 is installed on the reinforcing beam 26 by fasteners and includes a suspension plate 41. The suspension plate 41 is inclined and the side of the suspension plate 41 facing away from the ground faces the battery opening. The side limiting member 50 includes a partition 52 fixedly connected to the reinforcing column 25. The partition 52 is tilted backward and forms an acute angle β with the horizontal plane with the opening facing the rear of the partition 52. The rear of the partition 52 is the rear of the side limiting member 50. Specifically, it is the side of the partition 52 facing away from the front tube 10 and close to the rear wheel of the electric motorcycle 100. The included angle α and included angle β can be equal or unequal. The suspension plate 41, the partition plate 52, and the frame cover 90 covering the cage together form a battery mounting space 202. This battery mounting space 202 corresponds to the angle between the suspension plate 41 and the partition plate 52, which is also the angle between the suspension member 40 and the side limiting member 50. The opening of the angle between the suspension plate 41 and the partition plate 52 faces away from the ground. When the power battery 70 is positioned within the battery mounting space 202, the suspension plate 41 contacts the bottom of the power battery 70, and the partition plate 52 contacts the side of the power battery 70 facing away from the front tube 10. The power battery 70 reacts to the reinforcing column 25 through the partition plate 52, thus the reinforcing column 25 indirectly supports the side of the power battery 70 facing away from the front tube 10. The side of the partition plate 52 facing away from the battery mounting space 202 and the front tube 10 is the motor mounting space 201. When the user applies lifting force to the handle of the power battery 70, the separator 52 slides into contact with the power battery 70 and guides the power battery 70 through the battery inlet along the inclined direction of the separator 52.

[0045] Specifically, the side limiting member 50 includes a near-ground end extending toward the suspension member 40 and relatively close to the ground, and a far-ground end extending toward the battery opening and relatively far from the ground. The suspension plate 41 includes a front support end 411 relatively far from the near-ground end of the side limiting member 50 and a rear support end 412 relatively close to the near-ground end of the side limiting member 50. The height of the suspension member 40 from the ground is the distance from the suspension plate 41 to the horizontal ground. The height of the suspension member 40 from the ground gradually decreases from the front support end 411 to the rear support end 412. Optionally, both upper beams 211 are parallel to the suspension plate 41, which is therefore parallel to the battery opening. The extension direction of the partition 52 is approximately perpendicular to the suspension plate 41. Therefore, the side limiting member 50 guides the power battery 70 to move into and out of the battery placement space 202 along the vertical direction of the suspension plate 41. When the power battery 70 slides along the partition 52 to the lowest position while still in contact with the partition 52, the bottom of the power battery 70 directly contacts the side of the suspension plate 41 facing away from the ground.

[0046] See Figures 7-8In some embodiments, the side limiting member 50 further includes a shaped portion 51. The end of the partition 52 that is relatively close to the ground extends towards the suspension member 40 as the near-ground end of the side limiting member 50. The shaped portion 51 is fixedly connected to the end of the partition 52 that is relatively far from the ground, and the shaped portion 51 extends towards the battery opening as the far-ground end of the side limiting member 50. The reinforcing post 25 is adapted to the shaped portion 51 and forms a detachable connection. Optionally, the shaped portion 51 has a rolled structure and is integrally formed with the partition 52. The shaped portion 51 forms an open-ended arcuate groove 511. The inner wall of the arcuate groove 511 is adapted to the outer wall of the reinforcing post 25. The shaped portion 51 is detachably hooked to the reinforcing post 25 through the arcuate groove 511. This design allows the side retainer 50 to be removed from the cage for maintenance and repair of the electric motorcycle 100. Installing the side retainer 50 and cage is also simpler; pressure is applied to the irregularly shaped part 51 to press the reinforcing post 25 into the arc-shaped groove 511. When disassembling the side retainer 50 and cage, a lifting force is applied to the irregularly shaped part 51 in a direction away from the suspension member 40 to disengage the reinforcing post 25 from the arc-shaped groove 511. The side retainer 50 and cage are separately molded, reducing the molding difficulty and production cost of the motorcycle frame.

[0047] It is understood that in other embodiments, a locking groove can also be provided on the reinforcing column 25, and the irregular part 51 can be detachably inserted into the locking groove. When the side limiting member 50 is removed, a lifting force away from the suspension member 40 is applied to the irregular part 51, and the irregular part 51 and the reinforcing column 25 can be separated by pulling the irregular part 51 out of the locking groove. When the side limiting member 50 is installed into the cage, a downward pressure is applied to the irregular part 51 to make the irregular part 51 insert into the locking groove.

[0048] Further, see Figures 5-8 The suspension component 40 also includes a limiting stop 42 and a flared flange 43. The limiting stop 42 is bent and connected to the edge of the suspension plate 41 and extends towards the battery opening. The suspension plate 41 and the limiting stop 42 together form a limiting cavity. When the power battery 70 is placed in the battery placement space 202, at least a portion of the power battery 70, including its bottom, is located within the limiting cavity. The limiting stop 42 stops the outer periphery of the power battery 70 to limit its vibration and sway. Optional The limiting edge 42 is perpendicular to the suspension plate 41, so the space occupied by the limiting cavity is approximately cuboid, which can accommodate the power battery 70 which has a cuboid structure. The flared flange 43 is bent and connected to the edge of the limiting edge 42 that is relatively far away from the suspension plate 41, and is inclined to the outside of the limiting edge 42 in a direction away from the opening of the limiting cavity. The flared flange 43 surrounds the edge that is relatively far away from the limiting edge 42 to form a flared opening, so that the power battery 70 enters the limiting cavity under the guidance of the flared flange 43.

[0049] Further, see Figures 7-8At least a portion of the side limiting member 50, including the end of the partition 52 that is relatively far from the irregular part 51, extends into the limiting cavity. The limiting stop 42 also has a hook plate groove 421 that communicates with the limiting cavity. The portion of the side limiting member 50 located in the limiting cavity extends into the hook plate groove 421 and hooks the limiting stop 42. The side limiting member 50 located in the limiting cavity can be clamped and fixed by the side of the power battery 70 and the limiting stop 42, thereby forming a compact and stable whole within the enclosure of the power battery 70, the suspension member 40, and the side limiting member 50. Optionally, the end of the partition 52 that is relatively far from the irregular part 51 forms a curled hook edge, and the curled groove edge extends into the hook plate groove 421 and hooks the limiting stop 42. With this configuration, the side limiting member 50 and the suspension member 40 can be detachably hooked together. The hook plate groove 421 simplifies the structure of the side limiting member 50, making it easier to form and making it easier to assemble and disassemble the side limiting member 50 and the suspension member 40.

[0050] Further, see Figures 5-6 The distance from the side of the side limiting member 50 facing away from the front tube 10 and the battery mounting space 202 to the rear beam 212 increases along the direction closer to the bottom beam 221 and the motor passage. With this configuration, the dimension of the motor mounting space 201 in the length direction of the motor passage increases towards the ground. The drive motor 60 located in the motor mounting space 201 can be positioned closer to the motor passage and the ground, which helps to lower the overall center of gravity of the electric motorcycle 100 and improve the driving and handling performance of the electric motorcycle 100. In addition, the motor mounting space 201 required for the drive motor 60 and the battery mounting space 202 required for the power battery 70 are both smaller. The arrangement of the drive motor 60 and the power battery 70 in the motorcycle frame is more compact, thereby reducing the enveloping space of the motorcycle frame and achieving efficient utilization of the internal space of the motorcycle frame.

[0051] When the user applies a lifting force to the handle on top of the power battery 70, and the direction of the lifting force is away from the ground and parallel to the separator 52, the power battery 70 can be removed from the battery placement space 202. During the passage of the power battery 70 through the battery passage, the separator 52 slides to guide the movement of the power battery 70. The reinforcing column 25 indirectly supports the rear side of the power battery 70 to compensate for the insufficient rigidity of the separator 52. The force exerted by the reinforcing column 25 on the power battery 70 indirectly through the irregular part 51 includes a vertically upward support vector, which can offset part of the force. The power battery 70 is distributed according to its weight, making it easier and less strenuous for users to pick up and put down the power battery 70. The entire battery placement space 202 is approximately an inclined passageway, and the inclination direction of the side limiting member 50 is the inclination direction of this passageway. Therefore, the vertical movement distance of the power battery 70 when it is completely removed from the battery placement space 202 can be shortened. The smaller the acute angle β between the side limiting member 50 and the horizontal plane, the shorter the vertical movement distance of the power battery 70 during the process of moving it out of the battery placement space 202, and the easier and less strenuous it is to pick up and put down the power battery 70.

[0052] See Figures 3-4 The load-bearing base 23 includes at least a first mounting part 2311, a second mounting part 2312, a third mounting part 2321, and a fourth mounting part 2322 arranged sequentially along the outer extension direction of the load-bearing frame 21. The load-bearing frame 21 includes an upper beam 211 and a rear beam 212. The outer extension direction of the load-bearing frame 21 includes the direction in which the upper beam 211 extends obliquely to the rear of the front tube 10 to move away from the front tube 10. Optionally, the first mounting part 2311, the second mounting part 2312, the third mounting part 2321, and the fourth mounting part 2322 are arranged to gradually move away from the front tube 10. The first mounting part 2311 and the third mounting part 2321 form a group and define a first mounting position. The second mounting part 2312 and the fourth mounting part 2322 form another group and define a second mounting position. Compared with the seat cushion platform being in the first mounting position, the seat cushion platform is farther from the front tube 10 and closer to the ground when it is in the second mounting position. Therefore, the seat cushion height can be reduced by moving the seat cushion platform from the first mounting position to the second mounting position, and vice versa. Figure 1 The electric motorcycle 100 shown is positioned with its seat support in the first mounting position. Figure 9 The electric motorcycle 100 shown is in the second mounting position with the corresponding seat support.

[0053] Further, see Figures 1-2 , Figures 5-6The seat support includes a front protective shell 27 and a seat support 28 that are fixedly connected. The front protective shell 27 is located above the two load-bearing frames 21 to cover the battery opening and extends to the opposite sides of the two sets of frames 20 to cover the power battery 70. The seat support 28 includes a first load-bearing tube 281 and a second load-bearing tube 282 that are fixedly connected. The front protective shell 27 and the seat support 28 together support the seat. The load-bearing seat 23 also includes a fifth mounting part 2323 and a sixth mounting part 2324. The first mounting part 2311, the second mounting part 2312, the third mounting part 2321, the fourth mounting part 2322, the fifth mounting part 2323 and the sixth mounting part 2324 are arranged gradually away from the front tube 10 along the extension direction of the upper beam 211. The first mounting part 2311, the third mounting part 2321, and the fifth mounting part 2323 form a group and jointly define a first mounting position. The second mounting part 2312, the fourth mounting part 2322, and the sixth mounting part 2324 form another group and jointly define a second mounting position. The first mounting part 2311 and the second mounting part 2312 are detachably connected to the front protective shell 27, and the third mounting part 2321, the fourth mounting part 2322, the fifth mounting part 2323, and the sixth mounting part 2324 are detachably connected to the seat cushion bracket 28.

[0054] Specifically, the support base 23 includes a front support base 231 and a rear support base 232 arranged sequentially away from the front tube 10. In the horizontal direction, the distance from the front support base 231 to the front tube 10 is less than the distance from the rear support base 232 to the front tube 10. The front support base 231 includes a first mounting part 2311 and a second mounting part 2312, and the rear support base 232 includes a third mounting part 2321, a fourth mounting part 2322, a fifth mounting part 2323, and a sixth mounting part 2324. When the seat cushion is in the first mounting position, the front protective shell 27 is connected to the first mounting part 2311, and the first support tube 281 and the second support tube 282 are respectively connected to the third mounting part 2321 and the fifth mounting part 2323. When the seat cushion is in the second mounting position, the front protective shell 27 is connected to the second mounting part 2312, and the first support tube 281 and the second support tube 282 are respectively connected to the fourth mounting part 2322 and the sixth mounting part 2324. exist Figures 1-9 In the illustrated embodiment, the seat cushion platform is translated along the extension direction of the upper beam 211 to move between different mounting positions, and the seat angle does not change with height. To accommodate the translational movement of the seat cushion platform between different mounting positions, the distance between the first mounting part 2311 and the second mounting part 2312 is equal to the distance between the third mounting part 2321 and the fourth mounting part 2322, and also equal to the distance between the fifth mounting part 2323 and the sixth mounting part 2324. The distance between the first mounting part 2311 and the second mounting part 2312 is actually the translational distance of the seat cushion platform from the first mounting position to the second mounting position.

[0055] Furthermore, the detachable connection methods between the seat cushion base and multiple mounting parts include: detachable connection via threaded connectors, detachable connection via quick-connect connectors, and interlocking connections. When using threaded connectors to connect the seat cushion base and multiple mounting parts, tools are needed to apply force to the threaded connectors. When using quick-connect connectors or forming an interlocking connection, no tools are needed; users can disassemble and reconnect the seat cushion base and multiple mounting parts by hand. See also... Figures 3-4 The first mounting part 2311, the second mounting part 2312, the third mounting part 2321, the fourth mounting part 2322, the fifth mounting part 2323 and the sixth mounting part 2324 are all provided with mounting holes, which allow threaded connectors or quick-connect connectors to pass through.

[0056] It is understood that the number of installation positions is not limited to two; more installation parts can be set, and each installation part can define more installation positions. As long as multiple installation parts defining different installation positions are arranged sequentially along the outer extension direction of the load-bearing frame 21, the ground height of multiple installation positions can be differentiated along the outer extension direction of the load-bearing frame 21, and the distance between the installation positions decreases in the direction away from the front pipe 10. The first load-bearing pipe 281 and the second load-bearing pipe 282 can be combined into one load-bearing pipe. Accordingly, the fifth installation part 2323 and the sixth installation part 2324 can be omitted, and the third installation part 2321 and the fourth installation part 2322 can be detachably connected to the load-bearing pipe.

[0057] Optionally, in some embodiments, the front protective shell 27 and the seat support 28 are separately configured and detachably connected. This configuration facilitates the user's disassembly and assembly of the electric motorcycle 100, improving ease of use. For example, when it is necessary to remove the power battery 70, the seat is first removed from the seat support platform. Then, only the front protective shell 27 needs to be removed from the support frame 21 to open the battery passage. After that, the power battery 70 can be lifted diagonally upward by holding the handle. During the process of removing and placing the power battery 70, the seat support 28 remains connected to the support frame 21. There is no need to remove the seat support 28 from the support frame 21, making it easier to remove the front protective shell 27 separately.

[0058] In some embodiments not shown in the figures, the support base 23 includes a front support base 231 and a rear support base 232 arranged sequentially away from the front tube 10. The horizontal distance from the front support base 231 to the front tube 10 is less than the distance from the rear support base 232 to the front tube 10. The front support base 231 includes a first mounting portion 2311, and the rear support base 232 includes a second mounting portion 2312 and a third mounting portion 2321 arranged sequentially along the outer extension direction of the support frame 21. Optionally, the second mounting portion 2312 and the third mounting portion 2321 are arranged sequentially along the extension direction of the rear beam 212. The second mounting portion 2312 and the third mounting portion 2321 rotate about the first mounting portion 2311 as the center of rotation and are mutually oriented by rotating by a preset angle. The first mounting portion 2311 and the second mounting portion 2312 together define a first mounting position, and the first mounting portion 2311 and the third mounting portion 2321 together define a second mounting position. With this configuration, when the seat cushion platform switches between the first mounting position and the second mounting position, the seat cushion platform actually rotates about the first mounting portion 2311 as the center of rotation. Compared with changing the sitting height by translating the seat cushion platform, the motorcycle frame and electric motorcycle 100 of this embodiment can change the height and pitch angle of the seat cushion platform at the same time, providing the user with a better sitting posture change experience. Multiple mounting parts can be installed on the upper beam 211, on the rear beam 212, or on both the upper beam 211 and the rear beam 212.

[0059] Optionally, the load-bearing frame 21 and the load-bearing seat 23 are separate molding structures. The cage, including the front tube 10, load-bearing frame 21, lower beam 222, bottom beam 221, support member 24, reinforcing column 25 and reinforcing beam 26, is made of multiple BIK500 steel pipes. The load-bearing frame 21 directly bears the reaction force of the seat cushion platform. Therefore, the load-bearing frame 21 is made of materials with better strength and rigidity through casting and other processes. With this setting, the motorcycle frame has stronger structural stability and durability.

[0060] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A motorcycle frame compatible with a drive motor, characterized in that, Includes a front tube (10), a cage and two sets of motor mounts (30), the cage constructs a motor mounting space (201) located obliquely behind the front tube (10), the motor mounting space (201) has an open motor passage, the two sets of motor mounts (30) are arranged at intervals along the length direction of the motor passage and are respectively used to connect the two opposite halves of the drive motor (60).

2. The motorcycle frame compatible with a drive motor as described in claim 1, characterized in that, The motor opening is formed at the bottom side of the cage and faces downwards; and / or The motor mounting space (201) is entirely located within the envelope space of the cage; and / or, Both sets of motor mounts (30) are provided with pin holes (33), the axial direction of the pin holes (33) is horizontal and perpendicular to the length direction of the motor passage.

3. The motorcycle frame compatible with a drive motor as described in claim 1, characterized in that, The enclosure comprises multiple BIK500 steel pipes that enclose the motor mounting space (201).

4. The motorcycle frame compatible with a drive motor as described in claim 1, characterized in that, The enclosure includes a frame (20) that encloses the motor mounting space (201), the frame (20) including an upper beam (211), a rear beam (212), a bottom beam (221), and a lower beam (222), wherein: The two ends of the upper beam (211) are respectively connected to the top of the front tube (10) and the rear beam (212), the bottom end of the rear beam (212) is connected to the rear end of the bottom beam (221), the two ends of the lower beam (222) are respectively connected to the front end of the front tube (10) and the front end of the bottom beam (221), and the two sets of motor mounts (30) are respectively the front mount (31) on the lower beam (222) and the rear mount (32) on the rear beam (212).

5. The motorcycle frame compatible with a drive motor as described in claim 4, characterized in that, The number of frames (20) is two sets, and the two sets of frames (20) are spaced apart along the width direction of the motor passage. The motor passage is formed between the two bottom beams (221). The front hanger (31) includes two front seats (311), and the rear hanger (32) includes two rear seats (321). The two front seats (311) are spaced apart along the width direction of the motor passage, and the two rear seats (321) are spaced apart along the width direction of the motor passage.

6. The motorcycle frame compatible with a drive motor as described in claim 5, characterized in that, The distance d1 between the two front seats (311) is less than the distance d2 between the two rear seats (321), the difference between d1 and d2 is Δd, and a accommodating gap is formed between the two rear seats (321) for the drive motor (60) lug and the wheel swing arm (80) to be placed therein, wherein the total width of the end of the wheel swing arm (80) placed in the accommodating gap is Δd; and / or, The cage also includes a support member (24) connecting the two bottom beams (221). The support member (24) is used to define the motor passage. When both the front hanger (31) and the rear hanger (32) are connected to the drive motor (60), the support member (24) and the drive motor (60) are spaced apart. When the front hanger (31) is disengaged from the drive motor (60), the motor mounting space (201) allows the drive motor (60) to rotate around the rear hanger (32) until it abuts against the support member (24).

7. The motorcycle frame compatible with a drive motor as described in claim 4, characterized in that, The front hanger (31) is fixedly provided with a seat bracket (312), the seat bracket (312) has a connecting pipe side that connects to the outer side wall of the lower beam (222), and the width of the seat bracket (312) increases from the front hanger (31) toward the connecting pipe side.

8. The motorcycle frame compatible with a drive motor as described in claim 4, characterized in that, The rear beam (212) has a recessed groove for placing the rear hanger (32) therein, and the rear hanger (32) is fixedly engaged with the inner wall of the recessed groove; or, the rear hanger (32) is welded to the inner wall of the recessed groove.

9. An electric motorcycle, characterized in that, The motorcycle frame includes a drive motor (60) and a compatible drive motor as described in any one of claims 1 to 8. The drive motor (60) includes a housing, and two opposite halves of the housing are respectively provided with lifting lugs, and the two lifting lugs are respectively connected to two motor mounts (30).

10. The electric motorcycle as described in claim 9, characterized in that, All of the drive motors (60) are located within the envelope space of the cage; and / or, The electric motorcycle also includes a frame cover (90), which covers the perforated holes of the cage and closes the motor mounting space (201).

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