Self-excitation type speed inhibitor having water cooling system

Abstract

The invention discloses an auto-excitation type retarder with a water-cooling system, which comprises a vortex induction cylindrical stator, a rotor, an iron core and a transmission axle, wherein the transmission axle is connected with the rotor, the stator is positioned on the outer layer of the rotor, the iron core and an exciting coil thereof are arranged outside the rotor, the permanent magnetic pole of an electric generator is arranged at the inner side of the rotor, and an armature and a coil thereof of a generating set are connected to a stator fixing frame; a cooling water channel is arranged inside the stator, a water channel outlet and a water channel inlet are arranged on the surface of the stator, and the cooling water channel is communicated with the outside via the water channel outlet and the water channel inlet. When a vehicle brakes at moderate speed, the load of the engine is reduced, the requirement for the heat dispersion is also lowered, therefore, the cooling fluid in the cooling water channel can be directly adopted for cooling for the retarder. The invention has the advantages of simple structure, saved energy resources, enhanced generating capacity of the generating set for the retarder, increased exciting current of the retarder and increased braking torque and retarded braking effect of the retarder.

Description

technical field [0001] The invention relates to a self-excited eddy current retarder, which is suitable for auxiliary braking devices of commercial vehicles. Background technique [0002] The widely used eddy current retarder is a vehicle safety auxiliary braking device, which can reduce the load of the original vehicle braking system by acting on the transmission system of the vehicle (non-contact), so that the vehicle can be evenly decelerated to improve vehicle braking. System reliability, prolong the service life of the brake system, and reduce the chance of accidents. The working principle of the eddy current retarder is: use the magnetic field principle to convert the kinetic energy of the car into heat and dissipate it, so as to realize the deceleration and braking of the car. [0003] There are more and more electrical and electronic devices in modern automobiles, and the requirements for the power supply of the automobile are also increasing. The work of the eddy c...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a self-excited retarder with a water-cooling system, which adopts a water-cooled structure, solves the heat dissipation bottleneck problem of the original self-excited retarder, and prolongs the continuous braking time; Improve the air gap magnetic density of the power generation device and increase the strength of auxiliary braking

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