Title:
RESIN FILLING METHOD AND RESIN FILLING DEVICE FOR MAGNET EMBEDDED CORE
Document Type and Number:
WIPO Patent Application WO/2016/147211
Kind Code:
A1
Abstract:
[Problem] To accurately fix permanent magnets into magnet insertion holes in a magnet embedded core by filling a resin and suppress the occurrence of burrs projecting to the outside of an axial direction end surface of a laminated iron core after filling the resin.
[Solution] A resin filling method for a magnet embedded core 1 has: a fixing step of sandwiching the axial direction ends of a laminated iron core by a first mold 21 and a second mold 22 provided opposed to each other; and a resin injection step of injecting a resin into a magnet insertion hole 3 from a resin injection portion 47 provided in the first mold 21 or the second mold 22. In the resin injection step, a tip portion 47a of the resin injection portion 47 is inserted into the magnet insertion hole 3 beyond an axial direction end surface 4a of a permanent magnet 4 inserted into the magnet insertion hole 3.
Inventors:
OKUDAIRA HIRONOBU (JP)
MURAYAMA TOMOAKI (JP)
FUKUYAMA OSAMU (JP)
MURAYAMA TOMOAKI (JP)
FUKUYAMA OSAMU (JP)
Application Number:
PCT/JP2015/001418
Publication Date:
September 22, 2016
Filing Date:
March 13, 2015
Export Citation:
Assignee:
KURODA PRECISION IND LTD (JP)
International Classes:
H02K15/03; H02K1/27
Foreign References:
| JP2014096932A | 2014-05-22 | |||
| JP2014036486A | 2014-02-24 | |||
| JP2002247784A | 2002-08-30 | |||
| JPH09149570A | 1997-06-06 | |||
| JP2011172347A | 2011-09-01 | |||
| JP2008042967A | 2008-02-21 |
Attorney, Agent or Firm:
OSHIMA & PARTNERS (JP)
Patent business corporation Oshima patent firm (JP)
Patent business corporation Oshima patent firm (JP)
Download PDF: