Title:
ROTOR MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2007/091692
Kind Code:
A1
Abstract:
It is possible to provide a rotor manufacturing method capable of reducing a rotor
unbalance amount by controlling a magnet arrangement position in a rotor core
and improving a work efficiency when fixing a magnet to the rotor core by using
resin. A lower surface (20b) of a rotor core (20) is arranged in a lower mold (30).
A magnet (22) is contained in each of magnet containing holes (21) formed in the
rotor core (20) in such a manner that a predetermined space is assumed between
an upper surface (20a) of the rotor core (20) and an upper surface of the magnet
(22). An upper mold (35) is arranged on the upper surface (20a) of the rotor core
(20). The upper mold (35) and the lower mold (30) apply a pressure to the rotor core
(20) and a molten resin is supplied with pressure from an internal diameter side
via the predetermined space into the plurality of magnet containing holes (21)
from respective cylinder (36) arranged in the upper mold (35). Thus, the magnets
(22) are molded by resin (41) while pressing the magnets (22) toward the outer
diameter side of the magnet containing holes (21).
Inventors:
FUKUMARU KENICHIRO (JP)
AMANO KATSUMI (JP)
FUKUMOTO TAKASHI (JP)
UEDA KAZUTOSHI (JP)
HARUNO KENTARO (JP)
TAKEUCHI TAKETO (JP)
WATANABE ATSUSHI (JP)
AMANO KATSUMI (JP)
FUKUMOTO TAKASHI (JP)
UEDA KAZUTOSHI (JP)
HARUNO KENTARO (JP)
TAKEUCHI TAKETO (JP)
WATANABE ATSUSHI (JP)
Application Number:
PCT/JP2007/052425
Publication Date:
August 16, 2007
Filing Date:
February 05, 2007
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
MITSUI HIGH TEC (JP)
FUKUMARU KENICHIRO (JP)
AMANO KATSUMI (JP)
FUKUMOTO TAKASHI (JP)
UEDA KAZUTOSHI (JP)
HARUNO KENTARO (JP)
TAKEUCHI TAKETO (JP)
WATANABE ATSUSHI (JP)
MITSUI HIGH TEC (JP)
FUKUMARU KENICHIRO (JP)
AMANO KATSUMI (JP)
FUKUMOTO TAKASHI (JP)
UEDA KAZUTOSHI (JP)
HARUNO KENTARO (JP)
TAKEUCHI TAKETO (JP)
WATANABE ATSUSHI (JP)
International Classes:
H02K15/03; H02K1/22; H02K1/27
Domestic Patent References:
| WO2004001930A1 | 2003-12-31 |
Foreign References:
| JP2002034187A | 2002-01-31 | |||
| JP2006031415A | 2006-02-02 | |||
| JP2001298887A | 2001-10-26 |
Other References:
See also references of EP 1983636A4
Attorney, Agent or Firm:
COSMOS PATENT OFFICE (Nagoya Center Building 2-22, Nishiki 2-chome, Naka-k, Nagoya-shi Aichi 03, JP)
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