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Title:
BRAKING MAGNETIC POLE STRUCTURE FOR LINEAR EDDY CURRENT BRAKING DEVICE, AND MANUFACTURING PROCESS FOR SAME
Document Type and Number:
WIPO Patent Application WO/2020/077556
Kind Code:
A1
Abstract:
The present invention relates to a braking magnetic pole structure for a linear eddy current braking device, the structure comprising: an iron core conducting a magnetic circuit and transferring a braking force; an insulation layer disposed at the outer periphery of the iron core and isolating coils from the iron core; the coils made of enameled wires, wound around the insulation layer, and generating a magnetomotive force after being energized; a support layer disposed at the outer periphery of the coils, and used to enhance packaging strength; fixing straps disposed at an interval along the outer periphery of the iron core and fixing the coils and the support layer together; and a packaging layer wrapped around the magnetic pole structure, and used to enclose and secure the coils to the outside of the iron core. Braking magnetic poles of the present invention have a rated power of about 3.2 kW (per magnetic pole), a maximum magnetomotive force of 21.7 kA, a heat resistance temperature not lower than class F, an IP rating meeting IP67 requirements, insulation withstanding voltage meeting requirements of AC 2.4 kV and 1,000 Hz, and a weight not greater than 24 kg. The invention meets requirements of braking magnetic poles for the next generation of magnetic levitation.

Inventors:
LIU JING (CN)
ZHANG DONGSHENG (CN)
LIU YINHU (CN)
NIU RUI (CN)
ZHU XINYU (CN)
CAO YUNLI (CN)
YU YIQUAN (CN)
Application Number:
PCT/CN2018/110614
Publication Date:
April 23, 2020
Filing Date:
October 17, 2018
Export Citation:
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Assignee:
CRRC NANJING PUZHEN HAITAI BRAKE EQUIPMENTS CO LTD (CN)
International Classes:
H02K49/04; H02K3/02; H02K15/02; H02K49/02
Foreign References:
CN108448776A2018-08-24
CN204538842U2015-08-05
CN201000811Y2008-01-02
CN108644230A2018-10-12
CN105048681A2015-11-11
Attorney, Agent or Firm:
NANJING TONGZE PATENT AGENCY FIRM (LIMITED LIABILITY PARTNERSHIP) (CN)
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