Title:
ELECTRIC PERMANENT MAGNET CHUCK
Document Type and Number:
WIPO Patent Application WO/2019/024748
Kind Code:
A1
Abstract:
An electric permanent magnet chuck, comprising a casing (1), the casing being provided thereon with at least one open inner cavity; reversible magnetic steel (2) is provided at a lower portion of the inner cavity, and a coil (3) is arranged in the inner cavity along an outer wall of the reversible magnetic steel; a magnetic pole (4) is superposed and fixed in the inner cavity, an annular groove being provided at a lower surface of the magnetic pole, and permanent magnet steel (5) that matches the annular groove being disposed in the annular groove. The electric permanent magnet chuck has the advantages of a simple structure, low processing difficulty, good sealing performance, small magnetic loss and so on.
Inventors:
HUANG DAQI (CN)
HUANG BIN (CN)
REN ZHENGSHENG (CN)
HUANG BIN (CN)
REN ZHENGSHENG (CN)
Application Number:
PCT/CN2018/097140
Publication Date:
February 07, 2019
Filing Date:
July 26, 2018
Export Citation:
Assignee:
HVR MAGNETICS CO LTD (CN)
International Classes:
B23Q3/154; H01F7/02
Foreign References:
| CN107393678A | 2017-11-24 | |||
| CN207104454U | 2018-03-16 | |||
| CN107263183A | 2017-10-20 | |||
| CN203579285U | 2014-05-07 | |||
| EP1057583A1 | 2000-12-06 | |||
| US4847582A | 1989-07-11 | |||
| CN101524817A | 2009-09-09 |
Other References:
See also references of EP 3663036A4
Attorney, Agent or Firm:
CHANGSHA ZONEYOUNG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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