Title:
CORELESS MOTOR
Document Type and Number:
WIPO Patent Application WO/2020/203726
Kind Code:
A1
Abstract:
The present invention provides a coreless motor which has a carbon nanotube electrical wire having excellent shape retention characteristics as a coil winding wire and excellent heat radiation characteristics as the coil winding wire. This coreless motor is provided with: a rotary shaft; a rotary plate attached to the rotary shaft; and a coil supported on the rotary plate. The coil comprises a carbon nanotube electrical wire comprising: a carbon nanotube wire material formed of a plurality of carbon nanotubes; and a cover layer having an insulating layer for insulating and covering the carbon nanotube wire material. When parts of the carbon nanotube electrical wire away by 1 cm from both ends of the carbon nanotube electrical wire having a length of 12 cm are pinched by tools, the carbon nanotube electrical wire is held at tension of 100 gf in a horizontal state for ten minutes, and only a tool at one end is removed; cases where the tip on the opposite side hangs lower that of the other end by 1 cm or more occur at a frequency of 20% or less.
Inventors:
AIZAWA HIDEKI (JP)
YAMASHITA SATOSHI (JP)
MIYOSHI KAZUTOMI (JP)
YAMASHITA SATOSHI (JP)
MIYOSHI KAZUTOMI (JP)
Application Number:
PCT/JP2020/013912
Publication Date:
October 08, 2020
Filing Date:
March 27, 2020
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
H02K3/02; H01B1/04; H01B5/02; H01B7/00; H02K3/47
Foreign References:
| JP2017208973A | 2017-11-24 | |||
| JP2009183012A | 2009-08-13 | |||
| JP2012010583A | 2012-01-12 | |||
| JP2004215473A | 2004-07-29 | |||
| JP2006100039A | 2006-04-13 | |||
| JP2016111795A | 2016-06-20 | |||
| JP2013069562A | 2013-04-18 | |||
| JPS58146318U | 1983-10-01 | |||
| JP2017208973A | 2017-11-24 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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