Liquid cooling auto-excitation-type eddy current retarder without electric brush structure

Abstract

A self-excited eddy current liquid-cooled retarder is disclosed. The retarder pertains to an auxiliary braking device retarding a vehicle, and comprises a retarder rotor, a retarder stator, a control module and a generator unit. The retarder rotor comprises a retarder coil, an electromagnet core and a core cage. The retarder coil is wound on a coil frame. The electromagnet core is inserted into the coil frame. The electromagnet core, the retarder coil and the coil frame are evenly distributed on the circumference of the core cage. The retarder rotor is connected to a transmission shaft of an automobile. The inner circle of the retarder stator and the outer circle of the electromagnet core of the retarder rotor are coaxial. The generator unit comprises a generator exciting winding, a generator exciting magnetic pole, a generator armature winding and a generator armature core and is received in the retarder rotor.

Description

technical field

[0001] The invention relates to an automobile retarder, in particular to a self-excited eddy current retarder utilizing liquid cooling to dissipate heat, belonging to an auxiliary braking device for decelerating a vehicle. Background technique

[0002] The retarder is a safety auxiliary device for driving brakes, which applies the braking force to the transmission parts of the vehicle to reduce the driving speed of the vehicle. At present, the most widely used retarder in our country is the eddy current retarder, which uses the principle of electromagnetism to convert the kinetic energy of the car into heat energy, and dissipates it through air cooling. The eddy current retarder can improve the braking performance of the car, eliminate the traditional braking noise and environmental pollution, prolong the service life of the brake pads and tires, and greatly improve the safety, comfort and economy of the car. Although the eddy current retarder has the advant...

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