Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2006-08-28
2010-12-21
Trinh, Minh (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S596000, C029S732000
Reexamination Certificate
active
07854056
ABSTRACT:
The present invention has an object to propose a method of producing a rotor, capable of reliably fixing a magnet to a rotor core with resin and preventing breakage of the rotor core. The present invention includes a step of fixing a permanent magnet to a rotor core by injecting molten resin into a slot by injection molding on the condition that, assuming that: a dimension between an end surface of the rotor core and an end surface of the permanent magnet is a core end surface-magnet interval; and a minimum value of a dimension between an inner surface of the slot and a side surface of the permanent magnet, allowing the molten resin to fully fill a clearance between the inner surface of the slot and the side surface of the permanent magnet by injecting the resin into the slot through a cylinder, is a minimum slot-magnet interval value, and a value of the core end surface-magnet interval is equal to or larger than the minimum slot-magnet interval value.
REFERENCES:
patent: 5199171 (1993-04-01), Umezawa et al.
patent: 5806169 (1998-09-01), Trago et al.
patent: 59-035555 (1984-02-01), None
patent: 05-083892 (1993-04-01), None
patent: 405111225 (1993-04-01), None
patent: 05-191936 (1993-07-01), None
patent: 08-088963 (1996-04-01), None
patent: 10-327547 (1998-12-01), None
patent: 2001-157394 (2001-06-01), None
patent: 2001-298887 (2001-10-01), None
Amano Katsumi
Fukumaru Kenichiro
Fukumoto Takashi
Haruno Kentaro
Takeuchi Taketo
Kenyon & Kenyon LLP
Mitsui High-Tec, Inc.
Toyota Jidosha & Kabushiki Kaisha
Trinh Minh
LandOfFree
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