Integrated electric motorcycle driving system

Abstract

The utility model discloses an integrated electric motorcycle driving system which comprises a motor shell, a controller, a motor and a speed reducer are arranged in the motor shell, the controller and the speed reducer are located at the two ends of the motor respectively, and the inherent defects of a traditional electric motorcycle driving system are overcome by deeply integrating independent subsystems together. The motor has the advantages of high power density, low noise, small torque fluctuation, flexible configuration and the like, and meets the market demand.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric motorcycle drive, and more specifically relates to an integrated electric motorcycle drive system. Background Technique

[0002] With the wide application of new technologies, people's requirements for electric motorcycles are also increasing day by day. The traditional electric motorcycle drive system usually consists of a controller, a motor integrated structure or a motor and a reducer integrated structure, and adopts a drive mode with a parallel shaft type gear reduction mechanism. They are mechanically and electrically connected to each other, and each subsystem is independent, inevitably having inherent defects such as large volume, high cost, and low reliability. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides an integrated electric motorcycle drive system, which has the advantages of large power density, low noise, small torque fluctuation, flexible configuration, etc., meeting the market demand.

[0004] To achieve the above object, the utility model provides the following technical solution: An integrated electric motorcycle drive system includes a motor housing, and a controller, a motor and a reducer are arranged inside the motor housing, and the controller and the reducer are respectively located at both ends of the motor.

[0005] Further, a motor end cover is arranged at the rear end of the motor housing, and a motor bearing mounting plate is arranged inside the motor housing. A sealed control cavity is formed among the motor housing, the motor end cover and the motor bearing mounting plate. The controller is located in the control cavity. A motor main shaft is rotatably connected to the motor bearing mounting plate, and a bearing is arranged between the motor main shaft and the motor bearing mounting plate. The motor and the controller are electrically connected through a wire, and the wire passes through the motor bearing mounting plate.

[0006] Further, the controller includes an electrical control module, a transfer seat and an encoder. The motor lead wire passes through the motor bearing mounting plate and then connects to the transfer seat. The transfer seat is electrically connected to the electrical control module. The electrical control module is connected to the motor end cover. The transfer seat is connected to the motor bearing mounting plate. The encoder is connected to the motor bearing mounting plate and is located at the rear end of the motor main shaft.

[0007] Further, a reducer end cover is arranged at the front end of the motor housing. A reduction cavity is formed between the reducer end cover and the motor housing, and a reduction gear pair is arranged in the reduction cavity.

[0008] Further, the reduction gear pair includes a central gear, a plurality of planetary gears and an internal gear ring. The central gear is connected to the main shaft of the motor. The internal gear ring is fixedly connected to the inner wall of the motor housing. The two sides of the planetary gear are respectively meshed with the central gear and the internal gear ring. An output shaft is provided on the reducer end cover. A planetary carrier is provided on the output shaft. The planetary carrier is connected to the plurality of planetary gears. A bearing is provided between the planetary gear and the planetary carrier.

[0009] Further, the main shaft of the motor, the output shaft and the internal gear ring are coaxially arranged.

[0010] Further, a plurality of heat dissipation fins are provided on the outer side of the motor end cover.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model deeply integrates the respective independent subsystems together. This drive system solves the inherent defects of the traditional electric motorcycle drive system, and has the advantages of large reduction ratio, strong bearing capacity, flexible configuration, etc., meeting the market demand. The controller is integrated at the left end of the motor by adjusting a suitable structural form. The reducer adopts a planetary gear type. The motor housing is an integrated structure including a controller cavity, a motor cavity and a reducer cavity, thereby forming a deeply integrated and integrated electric motorcycle drive system. Description of the Drawings

[0012] Figure 1 is a schematic internal structure diagram of the integrated electric motorcycle drive system of the present utility model;

[0013] Figure 2 is a schematic controller structure diagram at the rear end of the motor housing of the integrated electric motorcycle drive system of the present utility model;

[0014] Figure 3 is a schematic reducer structure diagram at the front end of the motor housing of the integrated electric motorcycle drive system of the present utility model.

[0015] Reference numerals: motor housing 1; controller 2; motor 3; reducer 4; motor end cover 5; motor bearing mounting plate 6; control cavity 7; electrical control module 8; adapter seat 9; encoder 10; reducer end cover 11; reduction cavity 12; motor cavity 13; bearing seat 14; oil seal 15; central gear 16; planetary gear 17; internal gear ring 18; planetary carrier 19; output shaft 20; connecting shaft 21; heat dissipation fin 22. Detailed Embodiments

[0016] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0018] Reference Figures 1 to 3 The utility model is further described.

[0019] An integrated electric motorcycle drive system comprises a motor housing 1, wherein a controller 2, a motor 3 and a reducer 4 are arranged in the motor housing 1, and the controller 2 and the reducer 4 are respectively located at two ends of the motor 3.

[0020] like Figure 1 As shown, in this example, preferably, a motor end cover 5 is provided at the rear end of the motor housing 1, a motor bearing mounting plate 6 is provided inside the motor housing 1, a sealed control chamber 7 is formed between the motor housing 1, the motor end cover 5 and the motor bearing mounting plate 6, the controller 2 is located in the control chamber 7, the motor bearing mounting plate 6 is rotatably connected to the main shaft of the motor 3, a bearing is provided between the main shaft of the motor 3 and the motor bearing mounting plate 6, the motor 3 and the controller 2 are electrically connected via a wire, and the wire passes through the motor bearing mounting plate 6.

[0021] like Figure 2 As shown, in this example, preferably, the controller 2 includes an electrical control module 8, an adapter 9 and an encoder 10. The output wire of the motor 3 passes through the motor bearing mounting plate 6 and is connected to the adapter 9. The adapter 9 is electrically connected to the electrical control module 8. The electrical control module 8 is connected to the motor end cover 5. The adapter 9 is connected to the motor bearing mounting plate 6. The encoder 10 is connected to the motor bearing mounting plate 6 and is located at the rear end of the main shaft of the motor 3.

[0022] Specifically, the electrical control module 8 includes electrical components such as a PCB board, power components, filters, and plug-in components symmetrically arranged on both sides.

[0023] Specifically, the PCB board of the electrical control module 8 is attached to the motor end cover 5 with heat dissipation glue and fixed by screws.

[0024] As Figure 3 shown, preferably in this embodiment, a reducer end cover 11 is provided at the front end of the motor housing 1. A reduction cavity 12 is formed between the reducer end cover 11 and the motor housing 1. A reduction gear pair is arranged in the reduction cavity 12 to reduce the output speed and increase the torque.

[0025] As Figure 1 and Figure 3 shown, specifically, a motor cavity 13 is provided in the motor housing 1. The motor 3 is located in the motor cavity 13. A bearing seat 14 is provided between the motor cavity 13 and the reduction cavity 12. The main shaft of the motor 3 passes through the bearing seat 14, and a oil seal 15 is provided between the main shaft of the motor 3 and the bearing seat 14.

[0026] As Figure 3 shown, preferably in this embodiment, the reduction gear pair includes a central gear 16, a plurality of planetary gears 17, and an internal gear ring 18. The central gear 16 is connected to the main shaft of the motor 3. The internal gear ring 18 is fixedly connected to the inner wall of the motor housing 1. The two sides of the planetary gear 17 are respectively meshed with the central gear 16 and the internal gear ring 18. An output shaft 20 is provided on the reducer end cover 11. A planetary carrier 19 is provided on the output shaft 20. The planetary carrier 19 is connected to a plurality of planetary gears 17. A bearing is provided between the planetary gear 17 and the planetary carrier 19.

[0027] As Figure 3 shown, preferably in this embodiment, the main shaft of the motor 3, the output shaft 20, and the internal gear ring 18 are coaxially arranged.

[0028] As Figure 3 shown, specifically, a connecting shaft 21 is provided on the main shaft of the motor 3, and the central gear 16 is located on the connecting shaft 21.

[0029] As Figure 2 shown, preferably in this embodiment, a plurality of heat dissipation fins 22 are provided on the outer side of the motor end cover 5 to improve the heat dissipation efficiency of the electrical control module 8.

[0030] Preferably in this embodiment, the motor 3 is a flat wire structure six-phase permanent magnet synchronous motor 3, or it can also be a motor 3 with other structures.

[0031] The utility model deeply integrates independent subsystems together. The drive system solves the inherent defects of the traditional electric motorcycle drive system, and has the advantages of large reduction ratio, strong bearing capacity, flexible configuration, etc., meeting the market demand. The controller 2 is integrated at the left end of the motor 3 by adjusting a suitable structural form. The reducer 4 adopts a planetary gear 17 type. The motor 3 housing is an integrated structure including a controller 2 cavity, a motor cavity 13 and a reducer 4 cavity, thereby forming a deeply integrated and integrated electric motorcycle drive system.

[0032] The above is only the preferred embodiment of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions within the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for those of ordinary skill in the art, several improvements and retouches made without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An integrated electric motorcycle drive system, characterized in that: The invention comprises a motor housing, in which a controller, a motor and a reducer are arranged, and the controller and the reducer are respectively located at two ends of the motor.

2. The integrated electric motorcycle drive system according to claim 1, wherein: A motor end cover is provided at the rear end of the motor housing, and a motor bearing mounting plate is provided inside the motor housing. A sealed control chamber is formed between the motor housing, the motor end cover and the motor bearing mounting plate. The controller is located in the control chamber. The motor bearing mounting plate is rotatably connected to the motor main shaft. A bearing is provided between the motor main shaft and the motor bearing mounting plate. The motor and the controller are electrically connected through a wire, and the wire passes through the motor bearing mounting plate.

3. The integrated electric motorcycle drive system according to claim 2, characterized in that: The controller includes an electrical control module, an adapter and an encoder. The motor output line passes through the motor bearing mounting plate and is connected to the adapter. The adapter is electrically connected to the electrical control module. The electrical control module is connected to the motor end cover. The adapter is connected to the motor bearing mounting plate. The encoder is connected to the motor bearing mounting plate and is located at the rear end of the motor spindle.

4. The integrated electric motorcycle drive system according to claim 1, wherein: A reducer end cover is arranged at the front end of the motor housing, a reduction cavity is formed between the reducer end cover and the motor housing, and a reduction gear pair is arranged in the reduction cavity.

5. The integrated electric motorcycle drive system according to claim 4, characterized in that: The reduction gear pair includes a central gear, a plurality of planetary gears and an inner ring gear, the central gear is connected to the motor main shaft, the inner ring gear is fixedly connected to the inner wall of the motor housing, the two sides of the planetary gears are respectively meshed with the central gear and the inner ring gear, the reducer end cover is provided with an output shaft, the output shaft is provided with a planetary bracket, the planetary bracket is connected to the plurality of planetary gears, and bearings are provided between the planetary gears and the planetary bracket.

6. The integrated electric motorcycle drive system according to claim 5, wherein: The motor main shaft, output shaft and inner gear ring are coaxially arranged.

7. The integrated electric motorcycle drive system according to claim 2, wherein: A plurality of heat dissipation fins are arranged on the outer side of the motor end cover.

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