AXIAL AIR-GAP ROTARY ELECTRIC MACHINE - HITACHI IND EQUIPMENT SYS

Title:

AXIAL AIR-GAP ROTARY ELECTRIC MACHINE

Document Type and Number:

WIPO Patent Application WO/2015/162708

Kind Code:

A1

Abstract:

The present invention provides an axial air-gap rotary electric machine (1) that is provided with: a stator (19) in which a plurality of core members (20), which have an iron core (21), a coil (22) that is wound around the outer periphery of the iron core, and a bobbin (23) that is disposed between the iron core and the coil, are arranged in a circular shape centred around a rotational axis (A); and at least one rotor (30) that faces an end surface of the iron core with a prescribed air gap therebetween in the radial direction of the rotational axis. Therein, the bobbin (23) has a cylinder portion (23a) into which the iron core is inserted, and a flange portion (23b) that extends for a prescribed length around the outer periphery of the cylinder portion (23a) and in a vertical direction, and the coil (22) is wound around the outer periphery of the cylinder portion (23a) by regular winding, and is formed by a sequence of layers wherein the number of turns for each layer wound further to the outside than the layer that is wound so as to be in contact with the flange portion (23b) is at least one less than the number of turns in the adjoining inner layer.

Inventors:

TOKOI HIROOKI (JP)
KITAJIMA DAISUKE (JP)
KAWAGOE TOMONORI (JP)
YAMAZAKI KATSUYUKI (JP)
SAKAI TORU (JP)
TAKAHASHI SHUUICHI (JP)
SUZUKI TOSHIFUMI (JP)
IWASAKI NORIHISA (JP)
MASAKI RYOUSOU (JP)
ENOMOTO YUJI (JP)

Application Number:

PCT/JP2014/061350

Publication Date:

October 29, 2015

Filing Date:

April 23, 2014

Export Citation:

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Assignee:

HITACHI IND EQUIPMENT SYS (JP)

International Classes:

H02K21/24; H02K3/46

Foreign References:

JP2009044941A	2009-02-26
JP2009148084A	2009-07-02
JP2006129623A	2006-05-18
JP2014017915A	2014-01-30

Other References: