Title:
ELECTRICAL EQUIPMENT
Document Type and Number:
Japanese Patent JP2019033232
Kind Code:
A
Abstract:
To provide electrical equipment capable of reducing an eddy current loss by suppressing an eddy current generated by a winding of a composite copper wire easily and inexpensively.SOLUTION: Electrical equipment 1 includes a composite copper wire 10 in which a first conductive portion 11 and a second conductive portion 12 made of a metallic material having a higher electrical resistivity than the material of the first conductive portion 11 are combined and drawn as a winding such that the composite conductive wire crosses magnetic flux by using a base material made of copper is used as the first conductive portion 11. When an electric resistance value of the entire first conductive portion 11 per unit length of the composite copper wire 10 is A and an electric resistance value of the entire second conductive portion 12 per unit length of the composite copper wire 10 is B, an electrical resistance ratio B/A of the composite copper wire 10 is 100 or more. The first conductive portion 11 is positioned inside the composite copper wire 10 along the drawing direction of the composite copper wire 10 and the second conductive portion 12 surrounds the first conductive portion 11 along the drawing direction.SELECTED DRAWING: Figure 2
Inventors:
CHIKADA SHIGERU
YOSHIDA MASAHIRO
YOSHIDA MASAHIRO
Application Number:
JP2017154751A
Publication Date:
February 28, 2019
Filing Date:
August 09, 2017
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01F27/28; H01F5/00
Domestic Patent References:
| JP2016046522A | 2016-04-04 | |||
| JP2016189459A | 2016-11-04 |
Foreign References:
| US20140272452A1 | 2014-09-18 | |||
| CN103827982A | 2014-05-28 | |||
| CN102482732A | 2012-05-30 |
Attorney, Agent or Firm:
Hiraki International Patent Office