STATOR AND METHOD FOR MANUFACTURING UNIT COIL USED FOR SAME

Title:

STATOR AND METHOD FOR MANUFACTURING UNIT COIL USED FOR SAME

Document Type and Number:

WIPO Patent Application WO/2011/155061

Kind Code:

A1

Abstract:

A stator includes a stator core and a distributed winding-type multi-phase coil. The multi-phase coil includes a plurality of unit coils each formed by winding a flat conducting wire into a plurality of turns. The unit coils are assembled into a plurality of slots of the stator core and are connected to each other to form the multi-phase coil. The unit coils each include concentrically wound outer and inner layer coils which are formed by a continuous single flat conducting wire. The winding-start end portion of the outer layer coil and the winding-end end portion of the inner layer coil become the first and second connection end portions of each of the unit coils, respectively. The first and second connection end portions are separately disposed at both ends of each of the unit coils and are disposed on the upper end surface of the stator core. The first connection end portion is disposed at a position on the inner circumferential side of the stator core, and the second connection end portion is disposed at a position on the outer circumferential side of the stator core. The first connection end portions of adjacent unit coils having the same phase are connected to each other, and the second connection end portions of adjacent unit coils are connected to each other.

Inventors:

KITAMURA MANABU (JP)
WATANABE ATSUSHI (JP)
ANDO FUJIO (JP)
HAGA MASAYOSHI (JP)

Application Number:

PCT/JP2010/059943

Publication Date:

December 15, 2011

Filing Date:

June 11, 2010

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
KITAMURA MANABU (JP)
WATANABE ATSUSHI (JP)
ANDO FUJIO (JP)
HAGA MASAYOSHI (JP)

International Classes:

H02K3/04; H02K15/04; H02K15/06

Foreign References:

JP2010067790A	2010-03-25
JP2008099441A	2008-04-24

Other References: