Electromagnetic and permanent-magnetic compound eddy current retarder
An electro-permanent, composite technology, applied in the direction of permanent magnet clutch/brake, asynchronous induction clutch/brake, etc., to achieve the effect of good thermal decay performance, compact structure and light weight
Active Publication Date: 2015-06-10
江阴智产汇知识产权运营有限公司
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Problems solved by technology
[0003] In order to solve the existing problems of the existing eddy current retarder and the permanent magnet retarder, the present invention provides an electromagnetic and permanent magnet composite eddy current retarder, which integrates the advantages of the eddy current retarder and the permanent magnet retarder, In the case of providing the same braking torque, the weight is lighter, the structure is more compact, the control is convenient, and the heat decay resistance is good
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[0016] Such as Figure 1-Figure 3 As shown, an electromagnetic and permanent magnet composite eddy current retarder of the present invention includes a left rotor disc 1, a stator assembly and a right rotor disc 3, wherein the stator assembly is composed of an even number of electric permanent magnet excitation devices 2, and the left rotor The disk 1 and the right rotor disk 3 are coaxially arranged, and the left rotor disk 1 and the right rotor disk 3 are symmetrically distributed on the left and right sides of an even number of electric permanent magnet excitation devices 2 . There is an axial air gap between each electric permanent magnet excitation device 2 and the left rotor disc 1 and the right rotor disc 3 .
[0017] Such as Figure 2-Figure 3 As shown, each electric permanent magnet excitation device 2 is made up of a permanent magnet 21, a magnetic sleeve 22, an iron core 23, a coil 24, and a magnetic guide 25, and there are two permanent magnets 21 and two magnetic...
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The invention discloses an electromagnetic and permanent-magnetic compound eddy current retarder for road wheeled vehicles. A left rotor disk and a right rotor disk are distributed at the left side and the right side of even numbered electrical permanent magnetic excitation devices coaxially and symmetrically, the even numbered electrical permanent magnetic excitation devices are evenly distributed in a periphery direction of the rotor disks, and axial air gaps exist between each electrical permanent magnetic excitation device and the left rotor disk and between each electrical permanent magnetic excitation device and the right rotor disk. Each electrical permanent magnetic excitation device is composed of a left permanent magnet, a right permanent magnet, a flux sleeve, an iron core, a coil, a left magnetizer and a right magnetizer, the left permanent magnet and the right permanent magnet, the cross sections of which are rings, are sleeved at the left end and the right end of a cavity of the flux sleeve coaxially and tightly, the corresponding left magnetizer and the corresponding right magnetizer are sleeved in the left permanent magnet and the right permanent magnet coaxially and tightly, the iron core which is coaxial with the magnetizers is fixedly connected between the left magnetizer and the right magnetizer, the coil is wound on the iron core, and the permanent magnets are magnetized. Retarding torque is supplied by electromagnetic retarding torque and permanent magnetic retarding torque together, and the electromagnetic and permanent-magnetic compound eddy current retarder is compact in structure, little in power consumption and good in heat fading capacity under the condition of same retarding torque.
Description
technical field [0001] The invention relates to an eddy current retarder for road wheeled vehicles, in particular to an electromagnetic and permanent magnet composite eddy current retarder which combines electromagnetic braking and permanent magnet braking. Background technique [0002] In recent years, with the continuous increase of automobile ownership and the continuous improvement of vehicle speed, the requirements for automobile safety performance are also continuously improved. The traditional form of automobile braking is mainly friction braking. During the braking process, the temperature of the friction brake will continue to rise, and the thermal degradation of the brake will be obvious, which will lead to a sharp decline in the braking performance of the friction brake, and even lead to the failure of the friction brake. . And the friction brake will generate dust and brake noise during braking. In order to solve the shortage of friction brakes, auxiliary bra...
Claims
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IPC IPC(8): H02K49/10H02K49/04
Inventor 何仁张端军
Owner 江阴智产汇知识产权运营有限公司