Oil-electric dual drive connection structure and motorcycle

Abstract

The utility model discloses a kind of oil-electricity dual-drive connecting structure, including engine and motor, the motor is fixedly installed on engine, and engine and motor adopt same output shaft, chain wheel is fixedly installed on the output shaft, and this chain wheel is driven and connected with motorcycle rear tire by chain to realize power transmission.The utility model co-axially connects the output shaft of motor and engine, and chain wheel is fixedly installed on output shaft, and driven by chain wheel and motorcycle rear wheel, therefore, it can realize motor and engine separately drive motorcycle, and also can oil-electricity simultaneously drive, on the basis of existing motorcycle, it can be directly refitted, refitting difficulty is small, structure is simple, improve the cruising range;Simultaneously since motor and engine adopt coaxial drive, when using engine work, namely oil drive, output shaft drives motor internal rotation, and then it can realize motor power generation and store to battery, further improve the cruising range of motorcycle.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle drive technology, specifically to a hybrid electric dual-drive connection structure and a motorcycle. Background Technology

[0002] Motorcycles are a convenient means of transportation, widely used for daily commuting and short-distance travel. Existing motorcycles are mainly divided into gasoline-powered and pure electric types: gasoline-powered motorcycles rely on engines to burn fuel for power, resulting in high fuel consumption and environmental pollution from exhaust emissions; pure electric motorcycles rely on batteries for power, and although they have no exhaust emissions, their range is limited, charging is inconvenient, and they are not suitable for long-distance travel needs.

[0003] To balance environmental protection and range, some hybrid electric motorcycles have emerged in the current technology field. However, they generally suffer from complex structures: significant modifications are required to the engine, motorcycle frame, or transmission system, increasing manufacturing costs and making retrofitting difficult. They also cannot be adapted to upgrades of existing traditional gasoline-powered motorcycles, hindering widespread adoption. Furthermore, some hybrid systems suffer from unreasonable power transmission structures between the electric motor and engine, resulting in large coaxiality deviations, severe power loss, and poor operational stability. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide a hybrid electric dual-drive connection structure, which solves the defects of the existing hybrid electric motorcycle drive system, such as complex structure, high modification difficulty, high cost and poor adaptability. It provides a drive structure that can directly add a motor to the original engine without major modifications and has stable power transmission, so as to realize independent hybrid electric drive.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dual-drive hybrid structure includes an engine and a motor. The motor is fixedly mounted on the engine, and the engine and motor share the same output shaft. A sprocket is fixedly mounted on the output shaft, and the sprocket is connected to the rear tire of the motorcycle via a chain to transmit power.

[0007] With the above structural design, the output shafts of the motor and engine are coaxially connected without major modifications, and a sprocket is fixedly installed on the output shaft. The sprocket drives the motorcycle's rear wheel. Therefore, the motor and engine can drive the motorcycle independently. It can be directly modified based on existing motorcycles, with low modification difficulty, simple structure, and improved range.

[0008] Preferably, the output shaft includes an engine output shaft and a motor output shaft, and the free end of the engine output shaft and the free end of the motor output shaft are fixedly connected by a spline connection, a flat key connection or a coupling, and the axes of the engine output shaft and the motor output shaft coincide.

[0009] Preferably, the sprocket is fixedly mounted on the engine output shaft by a flat key, a set screw, or a shrink sleeve, and the axis of the sprocket coincides with the axis of the engine output shaft.

[0010] The above structural design ensures that there is no deviation and minimal loss during power transmission, and that the operation is stable and reliable.

[0011] Preferably, the motor has a mounting plate at its end, and the engine has a corresponding mounting hole, with the mounting plate fixedly installed in the mounting hole of the engine by bolts.

[0012] Preferably, the lower end of the mounting plate is provided with a receiving cavity for mounting the sprocket, and one side of the receiving cavity is provided with a notch for mounting the chain.

[0013] Preferably, the clutch used in conjunction with the engine is a two-way clutch, and the engine can only be started electrically.

[0014] By adopting the above structural design and setting a two-way clutch, the foot start is eliminated, thereby ensuring the safety of the engine when driven by the electric motor.

[0015] Preferably, the motor is electrically connected to an inverter and a battery, wherein the inverter is used to convert the alternating current generated by the motor into direct current and store it in the battery.

[0016] With the above structural design, when the engine is driven, the output shaft simultaneously drives the internal rotation of the motor, thereby enabling the motor to generate electricity and store it in the battery.

[0017] This utility model also provides a motorcycle that adopts the aforementioned dual-drive (oil and electricity) connection structure.

[0018] Preferably, the motor is a permanent magnet synchronous motor or a brushless DC motor, which has two operating modes;

[0019] When in electric motor mode, the motor is powered by the battery, causing the output shaft to rotate and transmitting power to the sprocket.

[0020] When in generator mode, the engine drives the output shaft to rotate, which in turn drives the motor to generate electricity, which is then stored in the battery.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This utility model connects the output shaft of the motor and the engine coaxially and fixes the sprocket on the output shaft. The sprocket drives the rear wheel of the motorcycle. Therefore, the motor and engine can drive the motorcycle independently, or they can be driven by both oil and electricity. It can be directly modified on the basis of existing motorcycles. The modification is simple and the structure is easy, which improves the driving range.

[0023] 2. The motor and engine of this utility model are driven by the same axis. Therefore, when the engine is working, i.e., when it is driven by oil, the output shaft drives the internal rotation of the motor, thereby realizing the generation of electricity by the motor and storing it in the battery, which further improves the range of the motorcycle. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the motor in this utility model;

[0026] Figure 3 yes Figure 1 The exploded diagram.

[0027] In the picture:

[0028] Engine 1, mounting hole 1a, motor 2, mounting plate 2a, receiving cavity 2b, notch 2c, engine output shaft 3a, external spline 31a, motor output shaft 3b, internal spline 31b, sprocket 4. Detailed Implementation

[0029] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Please see Figures 1 to 3A dual-drive (hybrid and electric) structure includes an engine 1 and a motor 2. The motor 2 is fixedly mounted on the engine 1, and both the engine 1 and motor 2 share the same output shaft. A sprocket 4 is fixedly mounted on the output shaft, and the sprocket 4 is connected to the rear tire of the motorcycle via a chain to transmit power. This invention, by coaxially connecting the motor 2 and the output shaft of the engine 1 to a conventional gasoline-powered motorcycle, allows both the engine 1 and motor 2 to rotate independently, thereby driving the output shaft and the sprocket 4 to propel the motorcycle. This enables independent hybrid drive, improving the driving range. Figure 1 The internal structure of engine 1 is not shown; only the casing is used to represent the engine. Since the engine and its internal structure are existing technologies, there is no need to describe them in detail.

[0032] Furthermore, the output shaft includes an engine output shaft 3a and a motor output shaft 3b. The free ends of the engine output shaft 3a and the motor output shaft 3b are fixedly connected by a spline connection, a key connection, or a coupling, and the axes of the engine output shaft 3a and the motor output shaft 3b coincide. In this embodiment, the engine output shaft 3a and the motor output shaft 3b are connected by a spline connection. The engine output shaft 3a has an external spline 31a at its end, and the motor output shaft 3b has an internal spline 31b at its end. When the engine 1 and the motor 2 are installed, the external spline 31a of the engine output shaft 3a and the internal spline 31b of the motor output shaft 3b can be locked together, which is convenient for installation and has strong stability.

[0033] Similarly, in this embodiment, the sprocket 4 is fixedly mounted on the engine output shaft 3a by a flat key, a set screw or a shrink sleeve, and the axis of the sprocket 4 coincides with the axis of the engine output shaft 3a.

[0034] Furthermore, the motor 2 has a mounting plate 2a at its end, and the engine 1 has a corresponding mounting hole 1a, with the mounting plate 2a fixedly installed in the mounting hole 1a of the engine 1 by bolts. The lower end of the mounting plate 2a has a receiving cavity 2b for installing the sprocket 4, and one side of the receiving cavity 2b has a notch 2c for installing the chain and for chain rotation.

[0035] Furthermore, the engine 1 can be any existing motorcycle engine, specifically one of the following: a cyclic / reciprocating / interval / single-stage transmission engine, but it is not limited to the aforementioned engines. This increases the versatility of the hybrid conversion of this invention. The clutch used with the engine 1 is a two-way clutch, which prevents the engine 1 from continuously operating in reverse when the motor 2 is working alone, thus ensuring the safety of engine 1.

[0036] The motor 2 is electrically connected to an inverter and a battery. The inverter is used to convert the AC power generated by the motor 2 into DC power and store it in the battery.

[0037] This utility model also provides a motorcycle, including the aforementioned dual-drive (hybrid and electric) connection structure. The motorcycle further includes an integrated control unit, which is electrically connected to both the engine 1 and the motor 2, and is used to switch between pure electric drive mode and pure hydraulic drive mode according to operating conditions.

[0038] The motor 2 is a permanent magnet synchronous motor or a brushless DC motor, which has two working modes;

[0039] When in electric motor mode, the battery powers the motor 2, which rotates the output shaft and transmits power to the sprocket 4.

[0040] When in generator mode, the output shaft is driven to rotate by the engine 1, which in turn drives the motor 2 to generate electricity, which is then stored in the battery.

[0041] This invention can be improved on existing fuel-powered motorcycles by increasing the length of the engine output shaft 3a of engine 1 and setting an external spline 31a to be fixedly engaged with the internal spline 31b of the motor output shaft 3b of motor 2 to be installed. Motor 2 is then fixedly connected to engine 1, realizing dual drive of engine 1 and motor 2. At the same time, since engine 1 and motor 2 are driven coaxially, when engine 1 is driven alone, motor 2 can charge the battery, further improving the driving range.

[0042] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A dual-drive hybrid structure, comprising an engine (1) and an electric motor (2), characterized in that, The motor (2) is fixedly mounted on the engine (1), and the engine (1) and the motor (2) use the same output shaft. A sprocket (4) is fixedly mounted on the output shaft. The sprocket (4) is connected to the rear tire of the motorcycle via a chain to achieve power transmission.

2. The oil-electric dual drive connection structure according to claim 1, characterized in that, The output shaft includes an engine output shaft (3a) and a motor output shaft (3b). The free end of the engine output shaft (3a) and the free end of the motor output shaft (3b) are fixedly connected by a spline connection, a flat key connection or a coupling, and the axes of the engine output shaft (3a) and the motor output shaft (3b) coincide.

3. The dual-drive (oil and electricity) connection structure according to claim 2, characterized in that, The sprocket (4) is fixedly mounted on the engine output shaft (3a) by a flat key, a set screw or a shrink sleeve, and the axis of the sprocket (4) coincides with the axis of the engine output shaft (3a).

4. The dual-drive (oil and electricity) connection structure according to claim 1, characterized in that, The motor (2) has a mounting plate (2a) at its end, and the engine (1) has a corresponding mounting hole (1a) and the mounting plate (2a) is fixedly installed in the mounting hole (1a) of the engine (1) by bolts.

5. The dual-drive (oil and electricity) connection structure according to claim 4, characterized in that, The lower end of the mounting plate (2a) is provided with a receiving cavity (2b) for installing the sprocket (4), and a notch (2c) is provided on one side of the receiving cavity (2b) for installing the chain.

6. The dual-drive (oil and electricity) connection structure according to claim 1, characterized in that, The clutch used in conjunction with the engine (1) is a two-way clutch, and the engine can only be started electrically.

7. The dual-drive (oil and electricity) connection structure according to claim 1, characterized in that, The motor (2) is electrically connected to an inverter and a battery. The inverter is used to convert the AC power generated by the motor (2) into DC power and store it in the battery.

8. A motorcycle characterized in that The oil-electric dual-drive connection structure described in any one of claims 1-7 is adopted.

9. The motorcycle according to claim 8, characterized in that, The motor (2) is a permanent magnet synchronous motor or a DC brushless motor, which has two working modes; When in electric motor mode, the motor (2) is powered by the battery, the output shaft rotates, and the power is transmitted to the sprocket (4). When in generator mode, the output shaft is driven to rotate by the engine (1) and the motor (2) generates electricity, which is then stored in the battery.

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