Electric motorcycle frame

Abstract

The utility model relates to the technical field of motorcycle accessories, and discloses an electric motorcycle frame which comprises a battery bin, a seat support is installed at one end of the battery bin, a motor assembling support is installed at the lower end of the battery bin, and a rear fork arm is installed at one end of the motor assembling support. A rear shock absorber is installed between the battery bin and the rear fork arm. According to the utility model, the motor in the motor assembling bracket is arranged among the motor mounting frame, the side cover plate, the battery cushion pad and the anti-collision frame, so that the safety of the motor is ensured, and the motor is convenient to disassemble and maintain; the chain tension roller is pressed at the lower end of the inner side of the chain, and the tension rod is pulled downwards through the spring, so that the chain is always in a tensioned state, the chain can be effectively prevented from falling off in the riding process, and the riding safety is guaranteed; the storage battery is mounted in the battery compartment shell, and the battery compartment cover and the battery compartment shell are locked into an integral structure through the lock catch, so that the storage battery can be prevented from being stolen; and the battery is convenient to replace and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle accessories, in particular to an electric motorcycle frame. Background Art

[0002] With the enhancement of environmental awareness and the replacement of transportation tools, electric motorcycles are becoming more and more popular. Electric motorcycles are powered by electricity, unlike traditional motorcycles that need to use fuel, which greatly reduces pollution to the environment. At the same time, electric motorcycles can be powered by electricity, so the operating cost is lower and the noise is small during driving. Therefore, they are favored by people. Among them, the frame is an important component of the electric motorcycle.

[0003] Powder metallurgy bearings are made of metal powder and other friction-reducing material powders through pressing, sintering, shaping and oil impregnation. They have a porous structure. After being soaked in hot oil, the pores are filled with lubricating oil. During operation, the metal and oil expand due to the suction effect of the rotation of the journal and the frictional heat, squeezing the oil out of the pores, thereby lubricating the friction surface. After the bearing cools down, the oil is sucked back into the pores. Powder metallurgy bearings do not require the addition of lubricating oil for a long time. Therefore, powder metallurgy materials are used in the structures of motorcycles.

[0004] A Chinese patent discloses an electric motorcycle frame (authorization announcement number CN201737103U). This patented technology combines the structural characteristics of the motorcycle itself. While reasonably arranging the connection relationship between the various connecting parts, it focuses on and carefully designs the structure of the battery installation part of the frame. The structure is simple and compact, and the market prospects are broad. However, it is inconvenient to replace and repair the battery, and it cannot effectively protect the motor. Utility Model Content

[0005] The purpose of the utility model is to provide an electric motorcycle frame to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electric motorcycle frame includes a battery compartment. One end of the battery compartment is equipped with a seat bracket, and a motor mounting bracket is installed at the lower end of the battery compartment. One end of the motor mounting bracket is equipped with a rear fork arm, and a rear shock absorber is installed between the battery compartment and the rear fork arm. The motor mounting bracket includes a motor mounting frame. Side covers are installed at both the front and rear ends of the motor mounting frame, and a battery cushion is installed at the upper end of the motor mounting frame. A pull rod and a tension rod are respectively rotatably connected to the lower side of one end of the motor mounting frame, and a collision avoidance frame is installed at the other end of the motor mounting frame. A central shaft is installed near the upper end of the pull rod at one end of the motor mounting frame, and a set of central shaft bearings is installed between the motor mounting frame and the central shaft. A motor is installed inside the motor mounting frame, and a sprocket is fixedly connected to the output end of the motor. One end of the pull rod is rotatably connected to a shock absorber connecting plate, and a maintenance plate is installed on the front side of the side cover.

[0008] As a further solution of the present utility model: One end of the tension rod is rotatably connected to a chain tension roller, and a spring is connected between the tension rod and the motor mounting frame.

[0009] As a further solution of the present utility model: One of the corners of the shock absorber connecting plate is rotatably connected to the pull rod through a rotating shaft, and the other two corners of the shock absorber connecting plate are respectively rotatably connected to the rear shock absorber and the rear fork arm through corresponding rotating shafts.

[0010] As a further solution of the present utility model: The battery compartment includes a battery compartment shell fixed on the battery cushion. A storage battery is installed inside the battery compartment shell, and a battery compartment cover is rotatably connected to the upper end of the battery compartment shell through a rotating shaft. A start switch is installed at one end of the upper end of the battery compartment shell close to the battery compartment cover, and a backing plate is installed at the other end of the upper end of the battery compartment shell close to the battery compartment cover. A lock catch is installed between the battery compartment shell and the backing plate.

[0011] As a further solution of the present utility model: Controller heat dissipation fins are fixedly installed at one end of the battery compartment shell, and a connecting frame is fixedly installed at one end of the battery compartment shell. A plurality of heat dissipation holes are opened at a position on the outer side of the battery compartment shell close to the controller heat dissipation fins, and a front fork hole is provided at the upper end of one side of the battery compartment shell.

[0012] As a further solution of the present utility model: A set of long screws is installed at the upper end inside the connecting frame. The seat bracket is fixedly installed on the connecting frame through the long screws. A shock absorber fixing rod is installed at the lower end inside the connecting frame. The rear shock absorber is rotatably connected to the connecting frame through the shock absorber fixing rod.

[0013] As a further solution of the present utility model: A rear wheel axle is installed on one side of the rear fork arm, and the rear fork arm is connected to the central shaft on the other side.

[0014] As a further solution of the present utility model: the central shaft bearing is made of powder metallurgy material.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By installing the motor in the motor mounting bracket of the electric motorcycle between the motor mounting frame, the side cover plate, the battery buffer pad and the anti-collision frame, the safety is ensured and the disassembly and maintenance are convenient;

[0017] By pressing the chain tension roller against the lower end of the inner side of the chain and pulling the tension rod downward through the spring, the chain is always in a tensioned state, which can effectively prevent the chain from falling off during riding and ensure the safety of riding;

[0018] The rear shock absorber, the rear fork arm and the motor mounting bracket are rotationally connected together through the shock absorption connecting plate and the pull rod; when the rear shock absorber is deformed by impact, the rear fork arm and the motor mounting bracket can both rotate at a certain angle to play a role in shock absorption and buffering, improving the driving comfort;

[0019] By installing the storage battery in the battery compartment shell and locking the battery compartment cover and the battery compartment shell into a whole structure through the lock, the storage battery can be prevented from being stolen; and it is convenient to replace and repair the battery;

[0020] The storage battery 111 is cooled through the heat dissipation holes and the controller heat dissipation fins to avoid the overheating of the storage battery. Description of the Drawings

[0021] Figure 1 It is a structural schematic diagram of an electric motorcycle frame;

[0022] Figure 2 It is a structural schematic diagram of the motor mounting bracket in an electric motorcycle frame;

[0023] Figure 3 It is an exploded structural schematic diagram of the motor mounting bracket in an electric motorcycle frame;

[0024] Figure 4 It is a structural schematic diagram of the battery compartment in an electric motorcycle frame;

[0025] Figure 5 It is a structural schematic diagram of the open state of the battery compartment in an electric motorcycle frame;

[0026] Figure 6 It is a structural schematic diagram of the installation of an electric motorcycle.

[0027] In the figure: 1. Battery compartment; 11. Battery compartment housing; 12. Heat dissipation holes; 13. Controller heat dissipation fins; 14. Front fork hole; 15. Start switch; 16. Battery compartment cover; 17. Lock; 18. Long screw; 19. Connecting frame; 110. Shock absorber fixing rod; 111. Storage battery; 112. Rotating shaft; 113. Backing plate; 2. Seat bracket; 3. Rear shock absorber; 4. Rear fork arm; 41. Rear wheel axle; 5. Motor mounting bracket; 51. Motor mounting frame; 52. Battery buffer pad; 53. Anti-collision frame; 54. Side cover plate; 55. Pull rod; 56. Shock connection plate; 57. Chain tension roller; 58. Tension rod; 59. Spring; 510. Motor; 511. Sprocket; 512. Bottom bracket; 513. Bottom bracket bearing; 514. Maintenance plate; 6. Chain; 7. Rear wheel; 8. Front fork tube. Detailed implementation mode

[0028] Please refer to Figures 1 to 6 , in the embodiment of the present utility model, an electric motorcycle frame includes a battery compartment 1. One end of the battery compartment 1 is provided with a seat bracket 2, and a motor mounting bracket 5 is installed at the lower end of the battery compartment 1. One end of the motor mounting bracket 5 is provided with a rear fork arm 4. A rear shock absorber 3 is installed between the battery compartment 1 and the rear fork arm 4. The rear shock absorber 3 can also be installed between the seat bracket 2 and the rear fork arm 4, as long as it can ensure the stable swing of the rear fork arm 4 within a certain range.

[0029] In Figure 2 and Figure 3 , the motor mounting bracket 5 includes a motor mounting frame 51. Side cover plates 54 are installed at both the front and rear ends of the motor mounting frame 51, and a battery buffer pad 52 is installed at the upper end of the motor mounting frame 51. A pull rod 55 and a tension rod 58 are respectively rotatably connected to the lower side of one end of the motor mounting frame 51, and an anti-collision frame 53 is installed at the other end of the motor mounting frame 51. A bottom bracket 512 is installed near the upper end of the pull rod 55 at one end of the motor mounting frame 51, and a set of bottom bracket bearings 513 are installed between the motor mounting frame 51 and the bottom bracket 512. A motor 510 is installed inside the motor mounting frame 51. By installing the motor 510 between the motor mounting frame 51, the side cover plates 54, the battery buffer pad 52 and the anti-collision frame 53, its safety is ensured and it is convenient for disassembly and maintenance; the output end of the motor 510 is fixedly connected with a sprocket 511, as Figure 6As shown, the sprocket 511 is meshed and connected with the chain 6. The motor 510 drives the sprocket 511 to rotate, and the sprocket 511 can drive the chain 6 and the rear wheel 7 to rotate together to achieve power transmission. One end of the pull rod 55 is rotatably connected with a shock absorber connecting plate 56. The central shaft bearing 513 is made of powder metallurgy material, which has the characteristics of high hardness, high strength and not being easily damaged. A maintenance plate 514 is installed on the front side of the side cover plate 54. After the maintenance plate 514 is opened, the sprocket 511 can be inspected, maintained and repaired. One end of the tension rod 58 is rotatably connected with a chain tension roller 57, and a spring 59 is connected between the tension rod 58 and the motor mounting bracket 51. As Figure 6 shown, by pressing the chain tension roller 57 against the lower end of the inner side of the chain 6 and pulling the tension rod 58 downward through the spring 59, the chain 6 can be kept in a tensioned state through the chain tension roller 57, effectively avoiding the chain 6 from falling off during riding and ensuring riding safety. One corner of the shock absorber connecting plate 56 is rotatably connected with the pull rod 55 through a rotating shaft, and the other two corners of the shock absorber connecting plate 56 are respectively rotatably connected with the rear shock absorber 3 and the rear fork arm 4 through corresponding rotating shafts, thereby rotatably connecting the rear shock absorber 3, the rear fork arm 4 and the motor mounting bracket 5 together. Therefore, when the rear shock absorber 3 is deformed by the impact from the road surface, the rear fork arm 4 and the motor mounting bracket 5 can both rotate at a certain angle, playing a role in shock absorption and buffering and improving driving comfort.

[0030] In Figure 4 and Figure 5In it, the battery compartment 1 includes a battery compartment housing 11 fixed on a battery buffer pad 52. A storage battery 111 is installed inside the battery compartment housing 11. And at the upper end of the battery compartment housing 11, a battery compartment cover 16 is rotatably connected through a rotating shaft 112. At one end of the upper end of the battery compartment housing 11 close to the battery compartment cover 16, a start switch 15 is installed. And at the other end of the upper end of the battery compartment housing 11 close to the battery compartment cover 16, a cushion plate 113 is installed. A lock 17 is installed between the battery compartment housing 11 and the cushion plate 113. The battery compartment cover 16 and the battery compartment housing 11 are locked into an integral structure through the lock 17, which can prevent the storage battery 111 from being stolen. After the lock 17 is opened, the battery compartment cover 16 is rotated along the rotating shaft 112, and the battery compartment housing 11 can be opened. Then, the storage battery 111 can be taken out from the battery compartment housing 11, which is convenient for replacing and repairing the battery. One end of the battery compartment housing 11 is fixedly installed with a controller heat sink fin 13. And at one end of the battery compartment housing 11, a connecting frame 19 is fixedly installed. A plurality of heat dissipation holes 12 are formed at a position on the outer side of the battery compartment housing 11 close to the controller heat sink fin 13. The storage battery 111 is dissipated heat through the heat dissipation holes 12 and the controller heat sink fin 13 to avoid the temperature of the storage battery 111 being too high. At the upper end of one side of the battery compartment housing 11, a front fork hole 14 is provided. The front fork tube 8 is limited through the front fork hole 14. At the upper end of the inner side of the connecting frame 19, a group of long screw rods 18 are installed. The seat bracket 2 is fixedly installed on the connecting frame 19 through the long screw rods 18, so that the seat bracket 2 and the battery compartment 1 are stably fixed together. At the lower end of the inner side of the connecting frame 19, a shock absorber fixing rod 110 is installed. The rear shock absorber 3 is rotatably connected to the connecting frame 19 through the shock absorber fixing rod 110, so that the rear shock absorber 3 can rotate at a certain angle during the process of being compressed and deformed.

[0031] In Figure 1 and Figure 6 In it, a rear wheel shaft 41 is installed on one side of the rear fork arm 4. And on the other side of the rear fork arm 4, it is connected to the central shaft 512. By installing the rear wheel 7 on the rear wheel shaft 41, the rear fork arm 4 and the rear wheel 7 can form an integral body. By connecting the rear fork arm 4 and the motor mounting bracket 5 through the central shaft 512, the rear fork arm 4 and the motor mounting bracket 5 can swing at a certain angle to achieve shock absorption.

[0032] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An electric motorcycle frame, including a battery compartment (1), characterized in that, One end of the battery compartment (1) is equipped with a seat bracket (2), and a motor mounting bracket (5) is installed at the lower end of the battery compartment (1). One end of the motor mounting bracket (5) is equipped with a rear fork arm (4), and a rear shock absorber (3) is installed between the battery compartment (1) and the rear fork arm (4); the motor mounting bracket (5) includes a motor mounting frame (51), side covers (54) are installed at the front and rear ends of the motor mounting frame (51), and a battery buffer pad (52) is installed at the upper end of the motor mounting frame (51). A pull rod (55) and a tension rod (58) are respectively rotatably connected to the lower side of one end of the motor mounting frame (51), and a collision prevention frame (53) is fixedly installed at the other end of the motor mounting frame (51). A central shaft (512) is installed near the upper end of the pull rod (55) at one end of the motor mounting frame (51), and a set of central shaft bearings (513) is installed between the motor mounting frame (51) and the central shaft (512). A motor (510) is installed inside the motor mounting frame (51), a sprocket (511) is fixedly connected to the output end of the motor (510), one end of the pull rod (55) is rotatably connected to a shock absorber connecting plate (56), and a maintenance plate (514) is installed on the front side of the side cover (54).

2. The electric motorcycle frame according to claim 1, characterized in that, One end of the tension rod (58) is rotatably connected to a chain tension roller (57), and a spring (59) is connected between the tension rod (58) and the motor mounting frame (51).

3. The electric motorcycle frame according to claim 1, wherein, One of the corners of the shock absorber connecting plate (56) is rotatably connected to the pull rod (55) through a rotating shaft, and the other two corners of the shock absorber connecting plate (56) are respectively rotatably connected to the rear shock absorber (3) and the rear fork arm (4) through corresponding rotating shafts.

4. An electric motorcycle frame according to claim 1, characterized in that, The battery compartment (1) includes a battery compartment shell (11) fixed on the battery buffer pad (52). A storage battery (111) is installed inside the battery compartment shell (11), and a battery compartment cover (16) is rotatably connected to the upper end of the battery compartment shell (11) through a rotating shaft (112). A start switch (15) is installed at one end of the upper end of the battery compartment shell (11) near the battery compartment cover (16), and a backing plate (113) is installed at the other end of the upper end of the battery compartment shell (11) near the battery compartment cover (16). A lock catch (17) is installed between the battery compartment shell (11) and the backing plate (113).

5. An electric motorcycle frame according to claim 4, characterized in that, A controller heat dissipation fin (13) is fixedly installed at one end of the battery compartment shell (11), and a connecting frame (19) is fixedly installed at one end of the battery compartment shell (11). A plurality of heat dissipation holes (12) are opened at a position on the outer side of the battery compartment shell (11) near the controller heat dissipation fin (13), and a front fork hole (14) is provided at the upper end of one side of the battery compartment shell (11).

6. The electric motorcycle frame according to claim 5, characterized in that, A set of long screw rods (18) are installed at the upper end of the inner side of the connecting frame (19). The seat bracket (2) is fixedly installed on the connecting frame (19) through the long screw rods (18). A shock absorber fixing rod (110) is installed at the lower end of the inner side of the connecting frame (19). The rear shock absorber (3) is rotatably connected to the connecting frame (19) through the shock absorber fixing rod (110).

7. An electric motorcycle frame according to claim 1, characterized in that, A rear wheel axle (41) is installed on one side of the rear fork arm (4), and is connected to the central axis (512) on the other side of the rear fork arm (4).

8. An electric motorcycle frame according to claim 1, characterized in that, The central axis bearing (513) is made of powder metallurgy material.

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