Mixed cooling air gap axial adjustable spherical permanent magnet eddy current retarder
A permanent magnet eddy current and hybrid cooling technology, which is applied in the direction of permanent magnet clutches/brakes, cooling/ventilation devices, electric brakes/clutches, etc. Misaligned installation and reduced airtightness of liquid cooling heat sinks, etc., to avoid airtight performance degradation, avoid overheating and demagnetization, and improve safety
Pending Publication Date: 2022-03-01
NORTHEASTERN UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a hybrid cooling air-gap axially adjustable spherical permanent magnet eddy current retarder to solve the problem that the existing retarder cannot be installed at a misaligned angle, to solve the problem of poor heat dissipation of the retarder, which affects Braking performance and stable and safe operation of retarder
[0006] Another object of the present invention is to solve the problem that the airtightness of the liquid-cooled heat sink is likely to decrease under frequent braking adjustments
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[0029] The preferred embodiments of the patent of the present invention will be described in detail below in conjunction with the accompanying drawings. The reference numerals refer to the components and technologies in the patent of the present invention, so that the advantages and features of the patent of the present invention can be more easily understood in a suitable environment. The following description is the embodiment of the patent claims of the present invention, and other specific implementations related to the claims that are not explicitly described also belong to the scope of the claims.
[0030] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right" etc. are based on those shown in the accompanying drawings. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying...
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The invention relates to the technical field of automobile retarders, and particularly discloses a mixed cooling air gap axial adjustable spherical permanent magnet eddy current retarder which comprises a conductor brake stator, a permanent magnet transmission rotor and an air gap axial adjusting device, one end of the conductor brake stator is a hollow cylinder fixed to an automobile body, and the other end of the conductor brake stator is a liquid cooling hollow ball; a conductor hollow ball is arranged on the inner wall of the liquid cooling hollow ball; one end of the permanent magnet transmission rotor is a cylinder fixed with an automobile transmission shaft, the other end of the permanent magnet transmission rotor is a sphere with a permanent magnet on the surface, the sphere is in threaded connection with the cylinder of the permanent magnet transmission rotor, the sphere is located in the liquid cooling hollow sphere and is concentric with the liquid cooling hollow sphere, and an air gap is reserved between the permanent magnet and the conductor hollow sphere; and one end of the air gap axial adjusting device is fixed on the cylinder of the permanent magnet transmission rotor, and the air gap axial adjusting device can drive the permanent magnet to axially move on the rotating shaft of the permanent magnet transmission rotor, so that the air gap axial adjustment between the permanent magnet and the conductor ball is realized.
Description
technical field [0001] The invention belongs to the technical field of automobile retarders, and relates to a spherical permanent magnet eddy current retarder with an axially adjustable hybrid cooling air gap. Background technique [0002] The car retarder is an auxiliary braking device. For medium and large cars that often run in mountainous areas, if they continue to drive on downhill roads for a long time, the load on the car's braking system will be too large, resulting in brake failure. The retarder can reduce the load of the automobile braking system, reduce the wear of the brake pads, and reduce the occurrence of traffic accidents. [0003] The permanent magnet retarder generates an induced eddy current through the relative movement of the permanent magnet and the conductor, the eddy current generates an induced magnetic field, and the induced magnetic field interacts with the original magnetic field to generate a rotational torque, realize the effect of non-contact b...
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IPC IPC(8): H02K49/04H02K49/10H02K7/12H02K9/02H02K9/19B60L7/28
CPCH02K49/043H02K49/102H02K49/106H02K7/125H02K9/19H02K9/02B60L7/28Y02T10/64
Inventor孔德善王大志刘震李汶浍王思瀚华钟
OwnerNORTHEASTERN UNIV