Motorcycle starting and generating integrated motor

By using a flexible connection between the stator core and the outer casing, along with a multi-stage shock absorption and heat dissipation system, the problem of vibration transmission in traditional motorcycle motors has been solved, improving the motor's stability, comfort, and reliability.

CN224329309UActive Publication Date: 2026-06-05ZHEJIANG HAIWEI ELECTRICAL APPLIANCES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HAIWEI ELECTRICAL APPLIANCES CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The vibration transmission of the integrated starter-generator motor in traditional motorcycles causes high-frequency vibration of the entire vehicle, affecting driving comfort and the lifespan of electrical components. Existing shock absorption structures have limited ability to absorb high-frequency vibrations.

Method used

The stator core is flexibly connected to the outer shell through elastic support columns. Combined with the flexible buffer structure of the first shaft and the motorcycle transmission components, the outer shell has a double-layer design filled with shock-absorbing damping fluid, equipped with heat dissipation fins and a fan, and sound-absorbing blocks and bearings reduce friction, forming a multi-stage shock absorption and heat dissipation system.

Benefits of technology

It effectively reduces the vibration amplitude of the whole machine, improves driving stability and comfort, extends the service life of the motor, and ensures the reliability and safety of the motor.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224329309U_ABST
    Figure CN224329309U_ABST
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Abstract

The utility model relates to a kind of starting power generation integration motor for motorcycle, including shell, base, stator core and stator winding being located in shell, rotatably arranged in the rotor core of shell, the rotor core is equipped with permanent magnet outside, the rotor core two ends are respectively connected with first rotating shaft and second rotating shaft, the stator core is fixedly connected with shell by multiple elastic support columns;The first rotating shaft is fixedly provided with first disc, multiple first fixed blocks are annularly distributed on the first disc, and a clearance slot is provided on each first fixed block;Second fixed block is provided on the second disc connected with motorcycle transmission component, a cylinder is rotatably arranged in the clearance slot, the cylinder is fixed with third disc, damping spring is provided between adjacent two third discs.The utility model solves the pain point of insufficient stability caused by motor vibration noise, significantly improves the driving experience of motorcycle and motor service life.
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Description

Technical Field

[0001] This utility model relates to the field of motorcycle motor technology, specifically to an integrated starter-generator motor for motorcycles. Background Technology

[0002] The integrated starter-generator motor for motorcycles is a key component that combines starting and power generation functions, and its performance directly affects the motorcycle's starting efficiency, power output stability, and overall reliability. Traditional integrated motors typically consist of a stator, rotor, and housing. The rotor is rigidly connected to the engine transmission components via a shaft, while the stator is directly fixed to the inner wall of the housing. However, this design has significant problems in practical applications: during motor operation, the vibration generated by the high-speed rotation of the rotor is directly transmitted to the vehicle body through the rigid connection structure, leading to increased high-frequency vibration throughout the vehicle. This not only reduces riding comfort but may also affect the lifespan of electrical components. While existing technologies attempt to mitigate vibration using a single damping structure (such as rubber pads), their absorption capacity for high-frequency vibration is limited. This application proposes an integrated motor that can achieve vibration attenuation, improving the stability and safety of the motorcycle. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] To address the technical problems mentioned in the background section, some embodiments of this application provide an integrated starter-generator motor for motorcycles, including a housing, a base, a stator core and stator windings disposed within the housing, and a rotor core rotatably disposed within the housing. The rotor core is externally equipped with permanent magnets, and a first shaft and a second shaft are respectively connected to both ends of the rotor core.

[0005] The stator core is fixedly connected to the inner wall of the outer casing by multiple elastic support columns;

[0006] The outer end of the first rotating shaft is fixedly provided with a first disk, and a plurality of first fixing blocks are distributed in a ring on the first disk, and each first fixing block is symmetrically provided with a clearance groove;

[0007] The second disc connected to the motorcycle transmission component is provided with a second fixing block that crosses and cooperates with the first fixing block. A cylinder is rotatably arranged in the clearance groove. A third disc is fixedly connected to the cylinder. A shock-absorbing spring is provided between two adjacent third discs.

[0008] Specifically, the outer wall of the outer casing is provided with multiple heat dissipation fins arranged in a ring at equal intervals.

[0009] Specifically, a fan is fixedly connected to the outer end of the second shaft.

[0010] Specifically, the outer shell includes an inner layer and an outer layer, with a cavity formed between the inner and outer layers, and the cavity is filled with shock-absorbing damping fluid.

[0011] Specifically, the first rotating shaft is rotatably connected to the outer casing via a first bearing.

[0012] Specifically, the second rotating shaft is rotatably connected to the housing via a second bearing.

[0013] Specifically, the inner wall of the inner layer is provided with a plurality of sound-absorbing blocks arranged in a ring at equal intervals, and the plurality of sound-absorbing blocks are provided with sound-absorbing holes.

[0014] The beneficial effects of this utility model are:

[0015] (1) The stator core is flexibly connected to the outer shell through the elastic support column, which can effectively absorb the high-frequency vibration generated when the rotor rotates at high speed, block the transmission path of vibration to the frame through the outer shell, and reduce the vibration amplitude of the whole machine; the first, second and third discs at the transmission end are elastically connected through the shock-absorbing spring to form a flexible buffer structure between the first shaft and the motorcycle transmission components, further attenuating rigid impact and vibration energy, significantly reducing noise and reducing fatigue damage to transmission components, and improving driving stability and comfort.

[0016] (2) The fan at the second shaft end works in conjunction with the annular heat dissipation fins on the outer wall of the casing to form a multi-path heat dissipation system that combines active and passive heat dissipation, which accelerates the heat dissipation inside the motor, avoids insulation aging or permanent magnet demagnetization caused by overheating of the stator winding, and ensures the reliability of the motor during long-term high-load operation.

[0017] (3) The coordinated design of elastic support columns and damping springs can reduce the air gap fluctuation between the stator and rotor caused by rotor eccentricity, reduce electromagnetic loss, and improve energy conversion efficiency.

[0018] Multi-stage absorption of vibration energy can also reduce the risk of loosening of critical connecting components, avoid poor electrical contact or mechanical failure caused by long-term vibration, and enhance the safety of the whole vehicle. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0020] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0021] In the attached diagram:

[0022] Figure 1 This is a structural diagram of the present invention;

[0023] Figure 2 This is a side view of the present invention;

[0024] Figure 3 for Figure 2 AA-line sectional view;

[0025] Figure 4 This is a partial structural diagram of the present invention. Detailed Implementation

[0026] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0027] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0029] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Reference Figures 1-4As shown, the present invention discloses an integrated starter-generator motor for motorcycles, comprising a housing 1, a base 2, a stator core 3 and a stator winding 4 disposed within the housing 1, and a rotor core 6 rotatably disposed within the housing 1. The rotor core 6 is externally provided with a permanent magnet 7, and a first rotating shaft 8 and a second rotating shaft 9 are respectively connected to both ends of the rotor core 6.

[0032] The stator core 3 is fixedly connected to the inner wall of the outer casing 1 by multiple elastic support columns 5;

[0033] A first disk 14 is fixedly provided at the outer end of the first rotating shaft 8. A plurality of first fixing blocks 15 are distributed in a ring on the first disk 14, and each first fixing block 15 is symmetrically provided with a clearance groove 16.

[0034] The second disc 17, which is connected to the motorcycle transmission component, is provided with a second fixing block 18 that crosses with the first fixing block 15. A cylinder 19 is rotatably arranged in the clearance groove 16. A third disc 20 is fixedly connected to the cylinder 19. A shock-absorbing spring 21 is provided between two adjacent third discs 20.

[0035] When the motor starts, current flows through the stator winding 4, generating magnetism and driving the rotor core 6 to rotate. This, in turn, drives the first shaft 8 and the second shaft 9 to rotate. When the first shaft 8 rotates, it drives the first disc 14 to rotate, which in turn drives the second disc 17 to rotate, thereby driving the motorcycle transmission components. A shock-absorbing spring 21 is fixedly installed between two adjacent third discs 20, forming a flexible buffer structure between the first shaft 8 and the motorcycle transmission components. This attenuates rigid impact and vibration energy, significantly reduces noise and reduces fatigue damage to the transmission components, improving driving stability and comfort. The stator core 3 is flexibly connected to the outer shell 1 through the elastic support column 5, which can effectively absorb the high-frequency vibration generated when the rotor rotates at high speed, blocking the transmission path of vibration through the outer shell 1 to the frame, and reducing the overall vibration amplitude.

[0036] Specifically, a plurality of heat dissipation fins 12 are arranged in a ring at equal intervals on the outer wall of the outer shell 1.

[0037] Specifically, a fan 11 is fixedly connected to the outer end of the second rotating shaft 9.

[0038] The fan 11 at the end of the second shaft 9 works in conjunction with the annular heat dissipation fins 12 on the outer wall of the outer casing 1 to form a multi-path heat dissipation system that combines active and passive cooling. This accelerates the heat dissipation inside the motor, avoids insulation aging or demagnetization of the permanent magnet 7 caused by overheating of the stator winding 4, and ensures the reliability of the motor during long-term high-load operation.

[0039] Specifically, the outer shell 1 includes an inner layer 101 and an outer layer 102, and a cavity 103 is formed between the inner layer 101 and the outer layer 102, and the cavity 103 is filled with shock-absorbing damping fluid.

[0040] The double-layer shell 1 is filled with shock-absorbing damping fluid. Without adding external shock-absorbing devices, the cavity 103 damping effect further suppresses low-frequency vibrations, while keeping the overall size of the motor compact, making it easy to install in the narrow space of a motorcycle.

[0041] Specifically, the first rotating shaft 8 is rotatably connected to the outer casing 1 via the first bearing 81.

[0042] Specifically, the second rotating shaft 9 is rotatably connected to the outer casing 1 via the second bearing 91.

[0043] By setting the first bearing 81 and the second bearing 91, the friction between the first rotating shaft 8, the second rotating shaft 9 and the outer casing 1 is reduced, mechanical loss and heat generation are reduced, contact wear between the rotating shaft and the outer casing 1 is avoided, and the overall service life of the motor is extended.

[0044] Specifically, a plurality of sound-absorbing blocks 13 are arranged in a ring at equal intervals on the inner wall of the inner layer 101, and the plurality of sound-absorbing blocks 13 are provided with sound-absorbing holes 10.

[0045] The sound-absorbing block 13 and the sound-absorbing hole 10 can effectively absorb the noise generated by the motor operation, significantly reduce the noise during the motorcycle's operation, and improve the riding comfort.

[0046] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A starter-generator integrated motor for motorcycles, comprising a housing (1) and a base (2). A stator core (3) and stator winding (4) are disposed within a housing (1), and a rotor core (6) is rotatably disposed within the housing (1). A permanent magnet (7) is provided outside the rotor core (6), and a first rotating shaft (8) and a second rotating shaft (9) are respectively connected to both ends of the rotor core (6). The characteristic feature is that: The stator core (3) is fixedly connected to the inner wall of the outer shell (1) by multiple elastic support columns (5); the outer end of the first rotating shaft (8) is fixedly provided with a first disc (14), and multiple first fixing blocks (15) are distributed in a ring on the first disc (14), and each first fixing block (15) is symmetrically provided with a relief groove (16); the second disc (17) connected to the motorcycle transmission component is provided with a second fixing block (18) that cross-fits with the first fixing block (15), and a cylinder (19) is rotatably provided in the relief groove (16), and a third disc (20) is fixedly connected to the cylinder (19), and a shock-absorbing spring (21) is provided between two adjacent third discs (20).

2. The integrated starter-generator motor for motorcycles according to claim 1, characterized in that: Multiple heat dissipation fins (12) are arranged in a ring at equal intervals on the outer wall of the outer shell (1).

3. The integrated starter-generator motor for motorcycles according to claim 1, characterized in that: A fan (11) is fixedly connected to the outer end of the second rotating shaft (9).

4. The integrated starter-generator motor for motorcycles according to claim 1, characterized in that: The outer shell (1) includes an inner layer (101) and an outer layer (102), and a cavity (103) is formed between the inner layer (101) and the outer layer (102), and the cavity (103) is filled with shock-absorbing damping fluid.

5. A motorcycle starter-generator integrated motor according to claim 1, characterized in that: The first rotating shaft (8) is rotatably connected to the outer casing (1) via the first bearing (81).

6. The integrated starter-generator motor for motorcycles according to claim 1, characterized in that: The second rotating shaft (9) is rotatably connected to the outer casing (1) via the second bearing (91).

7. A motorcycle starter-generator integrated motor according to claim 4, characterized in that: The inner layer (101) has a plurality of sound-absorbing blocks (13) arranged in a ring at equal intervals on its inner wall, and the plurality of sound-absorbing blocks (13) have sound-absorbing holes (10).