A motor bridge for electric vehicles

Abstract

An electric vehicle motor bridge characterized by: including a gearbox (1), a motor No. 1 (2), a motor No. 2 (3), a motor No. 3 (4) and a motor No. 4 (5). Motor No. 1 (2) and Motor No. 2 (3) are symmetrically positioned at both ends of one side of the gearbox (1), and Motor No. 3 (4) and Motor No. 4 (5) are symmetrically positioned at both ends of the other side of the gearbox (1), such that the gearbox (1), Motor No. 1 (2), Motor No. 2 (3), Motor No. 3 (4), and Motor No. 4 (5) together form an H-shaped symmetrical distributed bridge structure. Engine No. 1 (2), engine No. 2 (3), engine No. 3 (4) and engine No. 4 (5) have the same structure. Between motor No. 1 (2) and motor No. 2 (3) are battery box No. 1 (6) and battery box No. 2 (7). Between motor No. 3 (4) and motor No. 4 (5) are battery box No. 3 (8) and battery box No. 4 (9). Battery box No. 1 (6), battery box No. 2 (7), battery box No. 3 (8), and battery box No. 4 (9) have the same structure. Battery box No. 1 (6) and battery box No. 2 (7) are positioned symmetrically along the transverse central axis of the gearbox (1). Battery box No. 3 (8) and battery box No. 4 (9) are also positioned symmetrically along the transverse central axis of the gearbox (1). Battery box No. 1 (6) and battery box No. 4 (9) are positioned symmetrically along the vertical central axis of the gearbox (1).

Description

Technical area

[0001] The utility model relates to the field of automotive technology and relates in particular to an engine bridge for electric vehicles. Background technology

[0002] Electric vehicles refer to vehicles that use electrical energy as their power source, use the motor to drive the wheels, and meet the requirements of road traffic and safety regulations. These vehicles are considered new energy vehicles. With the vigorous promotion of new energy vehicles, the number of electric vehicles on the market is increasing. Due to the unsatisfactory range of electric vehicles, the comprehensive promotion process is currently limited. Contents of the utility model

[0003] In order to solve the above-mentioned technical problems, the technical solution of this utility model is a motor bridge for electric vehicles, including a transmission, a motor No. 1, a motor No. 2, a motor No. 3 and a motor No. 4.

[0004] The No. 1 motor and the No. 2 motor are symmetrically set at both ends of one side of the gearbox, and the No. 3 motor and the No. 4 motor are symmetrically set at both ends of the other side of the gearbox, so that the gearbox, the No. 1 motor, the No. 2 motor, the No. 3 motor, and the No. 4 motor as a whole form an H-shaped symmetrical distributed bridge structure.

[0005] Engine No. 1, Engine No. 2, Engine No. 3 and Engine No. 4 have the same structure.

[0006] Battery box No. 1 and battery box No. 2 are located between motor No. 1 and motor No. 2. Battery box No. 3 and battery box No. 4 are located between motor No. 3 and motor No. 4. Battery box No. 1, battery box No. 2, battery box No. 3, and battery box No. 4 have the same structure. Battery box No. 1 and battery box No. 2 are symmetrically arranged along the transverse center axis of the gearbox. Battery box No. 3 and battery box No. 4 are symmetrically arranged along the transverse center axis of the gearbox. Battery box No. 1 and battery box No. 4 are symmetrically arranged along the vertical center axis of the gearbox.

[0007] In addition, motor No. 1, motor No. 2, motor No. 3 and motor No. 4 use permanent magnet synchronous motors with the same structure.

[0008] In addition, the No. 1 engine (2), the No. 2 engine (3), the No. 3 engine (4), and the No. 4 engine (5) all have slim structures.

[0009] In addition, the length to diameter ratio of motor No. 1, motor No. 2, motor No. 3 and motor No. 4 shall be at least 3:1.

[0010] The advantage of this utility model compared to existing technology is that the motor bridge of this utility model adopts a completely symmetrical layout structure, so that the mass of the entire vehicle is evenly distributed and the center of gravity of the entire vehicle is kept as low as possible, thereby greatly improving the safety of vehicle driving. The structural design allows for the installation of four motor boxes, and a single motor box can accommodate a lithium battery pack with a capacity of up to 60 kilowatt-hours, equivalent to a cruising range of 400 kilometers. This results in a total cruising range of more than 1,000 kilometers, meeting the mileage requirements of electric vehicles. Description with drawings Fig. is a schematic structural diagram of an electric motor bridge according to the present utility model.

[0011] As shown in the picture: 1. Gearbox, 2. Motor No. 1, 3. Motor No. 2, 4. Motor No. 3, 5. Motor No. 4, 6. Battery box No. 1, 7. Battery box No. 2, 8. Battery box No. 3, 9. Battery box No. 4. The specific embodiment

[0012] To clarify the purpose, technical solution, and advantages of the utility model, the technical solution of the utility model is described clearly and completely below in conjunction with the attached drawings. Obviously, the described embodiments are part of the utility model, but not all embodiments.

[0013] Embodiment 1, with reference to Fig. , an electric vehicle motor bridge includes a transmission 1 (1), a motor No. 1 (2), a motor No. 2 (3), a motor No. 3 (4) and a motor No. 4 (5).

[0014] The No. 1 motor (2) and the No. 2 motor (3) are symmetrically set at both ends of one side of the gearbox (1), and the No. 3 motor (4) and the No. 4 motor (5) are symmetrically set at both ends of the other side of the gearbox (1), so that the gearbox (1), the No. 1 motor (2), the No. 2 motor (3), the No. 3 motor (4), and the No. 4 motor (5) as a whole form an H-shaped symmetrical distributed bridge structure.

[0015] Engine No. 1 (2), Engine No. 2 (3), Engine No. 3 (4) and Engine No. 4 (5) have the same structure.

[0016] Battery box No. 1 (6) and battery box No. 2 (7) are located between motor No. 1 (2) and motor No. 2 (3). Battery box No. 3 (8) and battery box No. 4 (9) are located between motor No. 3 (4) and motor No. 4 (5). Battery box No. 1 (6), battery box No. 2 (7), battery box No. 3 (8), and battery box No. 4 (9) have the same structure. Battery box No. 1 (6) and battery box No. 2 (7) are symmetrically arranged along the transverse center axis of the gearbox (1). Battery box No. 3 (8) and battery box No. 4 (9) are symmetrically arranged along the transverse center axis of the gearbox (1). The battery box No. 1 (6) and the battery box No. 4 (9) are set symmetrically along the vertical center axis of the gearbox (1).

[0017] In implementation, the motor mount is mounted on the vehicle chassis and located between the four wheels. The output shaft of the gearbox (1) is connected to the wheel drive shaft of the vehicle, allowing the motor to drive the wheel in rotation. Because the motor mount adopts a completely symmetrical layout structure, the entire vehicle mass is evenly distributed, which greatly improves vehicle safety. By installing four motor mounts, a single motor mount can accommodate a lithium battery pack with a capacity of up to 60 kilowatt-hours, equivalent to a cruising range of 400 kilometers. This makes the total cruising range exceed 1,000 kilometers, meeting the mileage requirements of electric vehicles.

[0018] Motor No. 1 (2), Motor No. 2 (3), Motor No. 3 (4), and Motor No. 4 (5) use permanent magnet synchronous motors with the same structure. They use permanent magnets for excitation, making the motor structure relatively simple. This reduces processing and assembly costs. At the same time, the failure-prone slip rings and brushes are eliminated, improving the reliability of motor operation. Since no excitation current is required and there is no excitation loss, the efficiency and power density of the motor are improved, allowing the motor to have the advantages of small size, simple structure, and high power density.

[0019] The No. 1 (2), No. 2 (3), No. 3 (4), and No. 4 (5) engines all feature sleek structures. The length-to-diameter ratio of the No. 1 (2), No. 2 (3), No. 3 (4), and No. 4 (5) engines is at least 3:1, which makes more efficient use of space and keeps the vehicle's center of gravity as low as possible, further improving safety.

[0020] The present utility model and its embodiments have been described above. This description is not limiting. What is shown in the drawings is only one embodiment of the utility model, and the actual structure is not limited thereto. In short, if a person skilled in the art can be inspired by it and, without deviating from the creative purpose of the present utility model, can design a structural method and embodiment similar to the technical solution without creativity, they all fall under the protection of the present utility model.

Claims

[1] An electric vehicle motor bridge, characterized by : Including a gearbox (1), a motor No. 1 (2), a motor No. 2 (3), a motor No. 3 (4) and a motor No. 4 (5). The No. 1 motor (2) and the No. 2 motor (3) are symmetrically set at both ends of one side of the gearbox (1), and the No. 3 motor (4) and the No. 4 motor (5) are symmetrically set at both ends of the other side of the gearbox (1), so that the gearbox (1), the No. 1 motor (2), the No. 2 motor (3), the No. 3 motor (4), and the No. 4 motor (5) as a whole form an H-shaped symmetrical distributed bridge structure. Engine No. 1 (2), Engine No. 2 (3), Engine No. 3 (4) and Engine No. 4 (5) have the same structure. Battery box No. 1 (6) and battery box No. 2 (7) are located between motor No. 1 (2) and motor No. 2 (3). Battery box No. 3 (8) and battery box No. 4 (9) are located between motor No. 3 (4) and motor No. 4 (5). Battery box No. 1 (6), battery box No. 2 (7), battery box No. 3 (8), and battery box No. 4 (9) have the same structure. Battery box No. 1 (6) and battery box No. 2 (7) are symmetrically arranged along the transverse center axis of the gearbox (1). Battery box No. 3 (8) and battery box No. 4 (9) are symmetrically arranged along the transverse center axis of the gearbox (1). The battery box No. 1 (6) and the battery box No. 4 (9) are set symmetrically along the vertical center axis of the gearbox (1). [2] Motor bridge for an electric vehicle according to legal claim 1, characterized bythat motor No. 1 (2), motor No. 2 (3), motor No. 3 (4) and motor No. 4 (5) use permanent magnet synchronous motors with the same structure. [3] A motor bridge for electric vehicles according to legal claim 2, characterized by that the No. 1 engine (2), the No. 2 engine (3), the No. 3 engine (4) and the No. 4 engine (5) all have slim structures. [4] A motor bridge for electric vehicles according to legal claim 3, characterized by that the length to diameter ratio of motor No. 1 (2), motor No. 2 (3), motor No. 3 (4) and motor No. 4 (5) is at least 3:1.

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