Electromagnetic retarder capable of energy recovery

Abstract

The invention discloses an electromagnetic retarder capable of energy recovery. The electromagnetic retarder comprises a stator, a rotor, a power electronic module and a transmission shaft, wherein the power electronic module is connected with the rotor via a reversing valve. The retarder is characterized in that the stator is arranged in the stator, and a gap exists between the rotor and the stator; the stator comprises a stator support, a generating armature, a liquid cooling isolation module and a cylinder which bears eddy current, and the stator support is connected with the transmission shaft via a bearing; the liquid cooling isolation module is arranged between the generating armature and the cylinder; the generating armature comprises a generating armature winding and a generating armature iron core, is connected with the stator support; and the rotor comprises a rotor support, an excitation winding and an excitation iron core, and the rotor support is connected with the transmission shaft, and the excitation winding. The electromagnetic retarder capable of energy recovery is simple in structure, small in size and high in braking capability.

Description

technical field [0001] The invention relates to the field of automobile reducers, in particular to an electromagnetic retarder with energy recovery function. Background technique [0002] The automobile retarder energizes the excitation winding of the stator assembly through the control circuit to generate a magnetic field, and the rotor assembly rotates at high speed with the transmission part of the vehicle, cutting the magnetic field lines, generating reverse torque, and decelerating the vehicle. At present, the most widely used automobile retarder in China is the eddy current retarder. Most of the traditional eddy current retarders adopt the structure of 2 rotors and 1 stator. The device is divided into three parts, and a certain air gap is left between the stator and the rotor. The front rotor and rear rotor of the eddy current retarder are connected with the input flange of the main reducer through the transition plate, the stator housing is fixed on the main reducer ...

AI Technical Summary

Problems solved by technology

This kind of device has a complex structure, large volume, large power consumption for excitation, and severe thermal decay during continuous braking.

[0003] The self-excited eddy current retarder is a kind of automobile retarder. It is based on the traditional eddy current retarder and adds a self-generating system. It can convert part of the braking energy into electric energy for its own excitation needs. The advantages of energy saving, but its structure is more complicated, and the volume is larger than the traditional eddy current retarder

[0004] Regenerative brake retarder is also a kind of automobile retarder. It converts the kinetic energy of the car into recyclable electric energy through the principle of electromagnetism. It has low heat loss, energy saving and environmental protection, but its braking torque is very small. It often requires multiple engine retarders to be connected in parallel or in series to realize the braking function, so the volume is large and the braking effect is not very ideal, so it is not suitable for heavy vehicles

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