INSULATED ELECTRIC WIRE AND MOTOR - FURUKAWA ELECTRIC CO LTD

Title:

INSULATED ELECTRIC WIRE AND MOTOR

Document Type and Number:

WIPO Patent Application WO/2014/123122

Kind Code:

A1

Abstract:

Provided is an insulated electric wire comprising a conductor, an insulation layer including a foam heat-curable resin and which covers the outer circumferential surface of the conductor, and an outside non-foam insulation layer that covers the outer circumferential surface of the insulation layer. The thickness deformation rate of the insulation layer when a pressure of 1 MPa is applied at 25°C is 15%-50%. The pencil hardness of the outside non-foam insulation layer is at least 4H and the ratio between the insulation layer thickness and the outside non-foam insulation layer thickness is 20:80-80:20. Also provided is a motor having this insulated electric wire wound around a stator slot, in a state in which pressure is applied in the direction in which the outer diameter of the insulated electric wire decreases, and the thickness of the insulation layer is reduced.

Inventors:

OYA MAKOTO (JP)
MUTO DAISUKE (JP)
TOMIZAWA KEIICHI (JP)

Application Number:

PCT/JP2014/052573

Publication Date:

August 14, 2014

Filing Date:

February 04, 2014

Export Citation:

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Assignee:

FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA MAGNET WIRE CO LTD (JP)

International Classes:

H01B7/02; H01F5/06; H02K3/32

Domestic Patent References:

WO2011118717A1	2011-09-29
WO2013133333A1	2013-09-12
WO2013133334A1	2013-09-12

Foreign References:

JP2011238384A	2011-11-24
JP2006031980A	2006-02-02
JP2012113836A	2012-06-14
JPH07282639A	1995-10-27
JP2008305620A	2008-12-18
JP3496636B2	2004-02-16
JP4584014B2	2010-11-17
JP3299552B2	2002-07-08
JP3276665B2	2002-04-22

Other References: