An electric motorcycle powertrain

Abstract

The utility model provides a kind of electric motorcycle power assembly, including first shell, the side of the first shell away from gear drive cavity is equipped with second shell, the space formed by the first shell and second shell is inserted with battery box, the battery box upper end is equipped with box cover, the battery box upper end is connected and is equipped with frame, the surface of the frame is equipped with multiple lugs, the lug lower surface is formed hexagonal groove by concave upwards, the box cover lower surface is evenly equipped with multiple with lug matched snap, the snap upper side is equipped with the rectangular frame with certain spacing with snap, the surface of the rectangular frame is evenly fixed with multiple with snap aligned lug, the lug upper surface is equipped with upper circular hole, the hexagonal nut is inserted in the hexagonal groove, the passageway formed by the upper circular hole and lower circular hole is inserted with fastening screw, the utility model has the following beneficial effects: spare split mode is provided for split battery box and box cover.

Description

Technical Field

[0001] This utility model relates to a powertrain for an electric motorcycle, belonging to the field of electric motorcycle accessories. Background Technology

[0002] The powertrain is the core component of an electric motorcycle. The gear transmission chamber, as the power source of the electric vehicle, is responsible for converting electrical energy into mechanical energy to drive the wheels. The battery pack provides power to the gear transmission chamber. The battery pack and gear transmission chamber are installed in the powertrain housing. The most common connection method is to connect the battery box and its cover with multiple screws. After prolonged use, the screws connecting the battery box and the cover may corrode. Corroded screws may become impossible to disassemble with conventional tools, making it difficult to repair or replace the battery inside the battery box. Therefore, it is necessary to design an electric motorcycle powertrain that provides an alternative disassembly method for separating the battery box and cover. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an electric motorcycle powertrain to solve the problems mentioned in the background technology. This utility model provides an alternative disassembly method for separating the battery box and the box cover.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electric motorcycle powertrain includes a first housing, a gear transmission cavity installed on one side of the first housing, a second housing installed on the side of the first housing away from the gear transmission cavity, a battery box inserted in the space formed by the first and second housings, a cover provided at the upper end of the battery box, the cover being located outside the space formed by the first and second housings, the cover being connected to the first and second housings by connecting screws, and a connector installed between the cover and the battery box.

[0005] Furthermore, the connector includes a frame that is fixedly connected to the upper end of the battery box. Multiple lugs are mounted on the surface of the frame. The lower surface of each lug is recessed upwards to form a hexagonal groove. A small hole communicating with the hexagonal groove is opened on the upper surface of the lug. Multiple sleeves that mate with the lugs are evenly mounted on the lower surface of the box cover. The sleeves are fitted onto the lugs. A rectangular frame with a certain distance between it and the upper side of the sleeve is provided. The rectangular frame is fitted onto the box cover and fixedly connected to it. Multiple support ears aligned with the sleeves are evenly fixed on the surface of the rectangular frame. An upper circular hole is opened on the upper surface of each support ear. A lower circular hole aligned with the upper circular hole is opened on the upper surface of the sleeve. A hexagonal nut is inserted into the hexagonal groove. A fastening screw is inserted into the channel formed by the upper and lower circular holes. The lower end of the fastening screw passes through the small hole and is threadedly connected to the hexagonal nut.

[0006] Furthermore, a plurality of connecting ears are installed on the lower surface of the box cover, and both the first outer shell surface and the second outer shell surface are provided with bosses that mate with the connecting ears. The connecting screws pass through the connecting ears and are threadedly connected to the bosses.

[0007] Furthermore, a connecting plate is installed at the center of the upper surface of the box cover, and a lifting ring is rotatably installed at the center of the upper surface of the connecting plate.

[0008] Furthermore, a first protective shell for mounting a cooling fan is installed on the side of the second outer shell opposite to the first outer shell. The first protective shell has honeycomb-shaped air ducts, and the first outer shell has an L-shaped structure.

[0009] Furthermore, the electric motorcycle powertrain also includes a motor and an electronic control unit. A second protective shell for heat dissipation of the motor and / or electronic control unit is installed on the side of the first housing opposite to the second housing. The second protective shell is provided with an air inlet.

[0010] Furthermore, a mesh reinforcement is fixed to the bottom of the battery box, and the mesh reinforcement and the battery box are integrally formed.

[0011] Furthermore, the ear support and the rectangular frame are integrally formed, the rectangular frame and the box lid are integrally formed, and the card holder and the box lid are integrally formed.

[0012] The beneficial effects of this utility model are: The battery used to be removed from the side, but now it's removed from the top. Taking the battery out upwards makes it easier to apply force, allowing for single-person operation and making replacement easier.

[0013] By passively dissipating heat through the first and second protective shells, air cooling is increased, improving heat dissipation efficiency. This allows air to dissipate heat from the battery, motor, and electronic control system, ensuring the efficiency and stability of the entire three-electric assembly.

[0014] 3. Insert the battery box and cover into the space formed by the first and second outer shells. Then, use multiple connecting screws to connect the cover to the first and second outer shells to complete the assembly of the battery box. After removing the connecting screws, use the lifting ring on the cover to lift it upwards, making it easy and quick to remove the battery box and cover from the space formed by the first and second outer shells. This ensures that there is a gap between the connecting lug and the boss, so that part of the connecting screw is exposed after installation, which makes it easier to cut off the rusted connecting screw later.

[0015] 4. Secure the multiple clips on the cover to the multiple lugs on the frame, then insert hexagonal nuts into the hexagonal slots. The fastening screws will then pass through the lugs and clips and connect threadedly to the hexagonal nuts in the hexagonal slots, completing the assembly of the cover and battery box. At this point, with the support of the rectangular frame, there is a gap between the head of the fastening screw and the clips. If the fastening screw cannot be properly disassembled due to corrosion, the gap between the rectangular frame and the clips can be used to cut off the fastening screw, providing an alternative disassembly method for separating the battery box and cover. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the powertrain structure of an electric motorcycle according to the present invention; Figure 2 This is a perspective view of an electric motorcycle powertrain according to the present invention. Figure 3 This is an assembly diagram of the rectangular frame, cover, and body in an electric motorcycle powertrain according to the present invention. Figure 4 This is a schematic diagram from another perspective showing the assembly of the rectangular frame, cover, and body of the powertrain of an electric motorcycle according to this utility model. Figure 5 This is an assembly diagram of the lug, frame, and battery box in an electric motorcycle powertrain according to the present invention. Figure 6 This is an assembly diagram of the first protective shell, the second outer shell, and the first outer shell in an electric motorcycle powertrain according to the present invention. Figure 7 This is an assembly diagram of the first housing, motor, and electronic control unit in an electric motorcycle powertrain according to the present invention. Figure 8 This is a schematic diagram of the assembly of the second protective shell in the powertrain of an electric motorcycle according to the present invention. In the diagram: 1-First outer shell, 2-Gear transmission cavity, 3-Rectangular frame, 4-Connecting plate, 5-Lifting ring, 6-Cover, 7-Fasting screw, 8-Support ear, 9-Clip sleeve, 10-Connecting ear, 11-Protrusion, 12-Battery box, 13-Hex nut, 14-Frame, 15-Protrusion ear, 16-Hex slot, 17-Second outer shell, 18-First protective shell, 181-Air duct, 19-Second protective shell, 191-Air inlet, A-Motor, B-Electrical control. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Please see Figures 1-8 This utility model provides a technical solution: an electric motorcycle powertrain, including a first outer shell 1, which has an L-shaped structure. A gear transmission cavity 2 is installed on one side of the first outer shell 1, and a second outer shell 17 is installed on the side of the first outer shell 1 away from the gear transmission cavity 2. The first outer shell 1 and the second outer shell 17 are fixedly connected by bolts. A first protective shell 18 for installing a cooling fan is installed on the side of the second outer shell 17 opposite to the first outer shell 1. The first protective shell 18 has honeycomb-shaped air guide holes 181, which can passively introduce air during driving, thereby cooperating with the cooling fan for active cooling.

[0019] The electric motorcycle powertrain also includes a motor A and an electronic control unit B. A second protective shell 19 for heat dissipation of motor A and / or electronic control unit B is installed on the side of the first housing 1 facing away from the second housing 17. The second protective shell 19 is provided with an air inlet 191. During operation, air can be passively drawn in through the air inlet 191, mainly for heat dissipation of motor A, which generates the most heat, thereby ensuring operating efficiency and stability.

[0020] By passively dissipating heat through the first protective shell 18 and the second protective shell 19, air cooling is increased, improving heat dissipation efficiency and allowing air to dissipate heat from the battery, motor, and electronic control system, thus ensuring the efficiency and stability of the entire three-electric assembly.

[0021] A battery box 12 is installed in the space formed by the first outer shell 1 and the second outer shell 17. The upper end of the battery box 12 is provided with a cover 6. The cover 6 is located outside the space formed by the first outer shell 1 and the second outer shell 17. The cover 6 is connected to the first outer shell 1 and the second outer shell 17 by connecting screws. Multiple connecting ears 10 are installed on the lower surface of the cover 6. Both the surface of the first outer shell 1 and the surface of the second outer shell 17 are equipped with protrusions 11 that mate with the connecting ears 10. Connecting screws pass through the connecting ears 10 and are threadedly connected to the protrusions 11. A connecting plate 4 is installed at the center of the upper surface of the cover 6. A lifting ring 5 is rotatably installed at the center of the upper surface of the connecting plate 4, allowing the structure formed by the battery box 12 and the cover 6 to be inserted into the space formed by the first outer shell 1 and the second outer shell 17. Then, multiple connecting screws are used to connect the cover 6 to the first outer shell 1 and the second outer shell 17, completing the assembly of the battery box 12. After removing the connecting screws, the lifting ring 5 on the cover 6 can be used to pull upwards, making it easy and quick to remove the structure formed by the battery box 12 and the cover 6 from the space formed by the first outer shell 1 and the second outer shell 17. This creates a gap between the connecting ears 10 and the protrusions 11, so that a portion of the connecting screws is exposed after installation, facilitating the later removal of rusted connecting screws by cutting them off.

[0022] The battery used to be removed from the side, but now it's removed from the top. Taking the battery out upwards makes it easier to apply force, allowing for single-person operation and making replacement easier.

[0023] See Figures 1-6 The bottom of the battery box 12 is fixed with a mesh reinforcement integrally formed with the battery box 12. A connector is installed between the cover 6 and the battery box 12. The connector includes a frame 14 that is fixed to the upper end of the battery box 12. Multiple lugs 15 are installed on the surface of the frame 14. The lower surface of the lugs 15 is recessed upward to form a hexagonal groove 16. The upper surface of the lugs 15 has a small hole communicating with the hexagonal groove 16. Multiple sleeves 9 that cooperate with the lugs 15 are evenly installed on the lower surface of the cover 6. The sleeves 9 and the cover 6 are integrally formed. The sleeves 9 are fitted onto the lugs 15. A rectangular frame 3 with a certain distance from the sleeves 9 is provided on the upper side of the sleeves 9. The rectangular frame 3 is fitted onto the cover 6 and is fixed to the cover 6. The rectangular frame 3 and the cover 6 are integrally formed. Multiple support ears 8 that are aligned with the sleeves 9 are evenly fixed on the surface of the rectangular frame 3. The support ears 8 and the rectangular frame 3 are integrally formed. The surface has an upper round hole, and the upper surface of the sleeve 9 has a lower round hole aligned with the upper round hole. A hexagonal nut 13 is inserted into the hexagonal groove 16. A fastening screw 7 is inserted into the channel formed by the upper and lower round holes. The lower end of the fastening screw 7 passes through a small hole and is threaded to the hexagonal nut 13, so that the multiple sleeves 9 on the cover 6 are respectively locked onto the multiple lugs 15 on the frame 14. Then, the hexagonal nut 13 is inserted into the hexagonal groove 16, so that the fastening screw 7 passes through the lug 8 and the sleeve 9 and is threaded to the hexagonal nut 13 in the hexagonal groove 16, thus completing the assembly of the cover 6 and the battery box 12. At this time, under the support of the rectangular frame 3, there is a gap between the head of the fastening screw 7 and the sleeve 9. When the fastening screw 7 cannot be disassembled normally due to corrosion, the fastening screw 7 can be cut off by using the gap between the rectangular frame 3 and the sleeve 9, thus providing an alternative disassembly method for disassembling the battery box 12 and the cover 6.

[0024] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electric motorcycle powertrain, comprising a first housing (1), characterized in that: A gear transmission cavity (2) is installed on one side of the first outer shell (1). A second outer shell (17) is installed on the side of the first outer shell (1) away from the gear transmission cavity (2). A battery box (12) is inserted in the space formed by the first outer shell (1) and the second outer shell (17). A cover (6) is provided at the upper end of the battery box (12). The cover (6) is located outside the space formed by the first outer shell (1) and the second outer shell (17). The cover (6) is connected to the first outer shell (1) and the second outer shell (17) by connecting screws. A connector is installed between the cover (6) and the battery box (12).

2. The electric motorcycle powertrain according to claim 1, characterized in that: The connector includes a frame (14) that is fixed to the upper end of the battery box (12). The surface of the frame (14) is provided with a plurality of lugs (15). The lower surface of the lugs (15) is recessed upward to form a hexagonal groove (16). The upper surface of the lugs (15) is provided with a small hole communicating with the hexagonal groove (16). The lower surface of the box cover (6) is provided with a plurality of sleeves (9) that cooperate with the lugs (15). The sleeves (9) are fitted onto the lugs (15). The upper side of the sleeves (9) is provided with a rectangular frame that has a certain distance from the sleeves (9). (3) The rectangular frame (3) is fitted onto the box cover (6) and is connected and fixed to the box cover (6). Multiple lugs (8) aligned with the card sleeve (9) are evenly fixed on the surface of the rectangular frame (3). An upper round hole is opened on the upper surface of the lug (8). A lower round hole aligned with the upper round hole is opened on the upper surface of the card sleeve (9). A hexagonal nut (13) is inserted in the hexagonal groove (16). A fastening screw (7) is inserted in the channel formed by the upper round hole and the lower round hole. The lower end of the fastening screw (7) passes through a small hole and is threadedly connected to the hexagonal nut (13).

3. The electric motorcycle powertrain according to claim 2, characterized in that: Multiple connecting ears (10) are installed on the lower surface of the box cover (6). The first outer shell (1) and the second outer shell (17) are both equipped with bosses (11) that cooperate with the connecting ears (10). The connecting screws pass through the connecting ears (10) and are threadedly connected to the bosses (11).

4. The electric motorcycle powertrain according to claim 1, characterized in that: A connecting plate (4) is installed at the middle of the upper surface of the box cover (6), and a lifting ring (5) is rotatably installed at the middle of the upper surface of the connecting plate (4).

5. The electric motorcycle powertrain according to claim 1, characterized in that: The second outer shell (17) has a first protective shell (18) for installing a cooling fan on the side facing away from the first outer shell (1). The first protective shell (18) has honeycomb-shaped air ducts (181). The first outer shell (1) has an L-shaped structure.

6. The electric motorcycle powertrain according to claim 1, characterized in that: The electric motorcycle powertrain also includes a motor (A) and an electronic control (B). The first housing (1) is provided with a second protective shell (19) on the side opposite to the second housing (17) for heat dissipation of the motor (A) and / or the electronic control (B). The second protective shell (19) is provided with an air inlet (191).

7. The electric motorcycle powertrain according to claim 1, characterized in that: The bottom of the battery box (12) is fixed with a mesh reinforcement, and the mesh reinforcement and the battery box (12) are integrally formed.

8. The electric motorcycle powertrain according to claim 2, characterized in that: The ear (8) and the rectangular frame (3) are integrally formed, the rectangular frame (3) and the box cover (6) are integrally formed, and the card sleeve (9) and the box cover (6) are integrally formed.

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