Differential electric motor

Abstract

The invention discloses a differential electric motor. A motor stator used for being connected with an external power source to generate an electromagnetic field is fixedly arranged on a middle section of a body, and motor rotors driven to rotate by the electromagnetic field of the motor stator are arranged on two sides of the body respectively through a shaft. The whole differential electric motor can be installed on a vehicle body of an electric vehicle through the body, the motor stator is connected with a power supply system of the electric vehicle, and the two motor rotors are connected with transmission wheels on the left and the right of the electric vehicle respectively; when the vehicle body travels on a curved road or turns, due to the fact that the two motor rotors connected with the transmission wheels rotate relative to the motor stator respectively, the friction resistance of a road surface can be automatically reflected, an asynchronous differential effect is generated naturally, the vehicle body has the good steering performance, and improper abrasion of the transmission wheels can be avoided.

Description

technical field [0001] The invention relates to a motor used in the transmission system of an electric vehicle, in particular to a differential motor which can automatically respond to the frictional resistance of the road surface so that the connected left and right transmission wheels naturally produce an asynchronous differential effect. Background technique [0002] The most basic transmission wheel configuration of a general vehicle mainly has a wheel axle, two drive wheels that are respectively arranged at both ends of the wheel axle and rotate coaxially with the wheel axle, and a set of drive wheels that rotate coaxially with the wheel axle and are used to transmit power. Transmission components. When the transmission assembly is driven by a power source to drive the axle to rotate, the transmission wheels at both ends of the axle are rotated synchronously to achieve the purpose of driving the vehicle. [0003] However, when the vehicle is driving on a curve or turni...

AI Technical Summary

Problems solved by technology

[0003] However, when the vehicle is driving on a curve or turning, the path (circle) of the inner wheel is shorter and the path (circumference) of the outer wheel is longer, resulting in the wheels on the left and right sides of the vehicle being in the same direction. It is necessary to face the problem of different speeds within a certain period of time; therefore, if the two transmission wheels are reluctantly installed on the same axle, it will inevitably cause unsmooth turning, and problems such as easy rollover and tire wear

[0004] Therefore, the industry will set up a "differential" between the two drive wheels on the same axis, so that the left and right drive wheels of the vehicle can move at different speeds to provide good steering performance of the vehicle; Design, or through the electronic switching design, let the left and right drive wheels produce a differential effect. Generally, after the differential is configured on a vehicle, it will occupy the space of the car body, increase the weight of the car body, and increase the transmission speed of the vehicle. The manufacturing cost of the system, as well as assembly and maintenance are relatively difficult

Images