Title:
WINDING DEVICE AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/192798
Kind Code:
A1
Abstract:
Provided are a winding device and a motor which can prevent damage on a coil during winding work and prevent an increase in size and a decrease in motor property. A nozzle 71 that feeds out a coil 24, has: a nozzle hole 72 from which the coil 24 is fed out; an inner-diameter round chamfering part 73 formed on an opening edge of a tip 71a of the nozzle 71; an outer-diameter round chamfering part 74 formed on the outer circumferential edge of the tip 71a of the nozzle 71. When the wire diameter of the coil 24 is defined as Φc, the inner diameter of the nozzle hole 72 is defined as Φin, the radius of curvature of the inner-diameter round chamfering part 73 is defined as Rin, and the radius of curvature of the outer-diameter round chamfering part 74 is defined as Rout, the wire diameter Φc, the inner diameter Φin, the radius of curvature Rin, and the radius of curvature Rout satisfy 1.2Φc≤Φin≤1.4Φc, 0.5Φc≤Rin≤Φc, and 0.25Φc≤Rout≤0.5Φc.
Inventors:
OHORI RYO (JP)
SHIODA NAOKI (JP)
HAYATA MASAKI (JP)
SHIODA NAOKI (JP)
HAYATA MASAKI (JP)
Application Number:
PCT/JP2021/007043
Publication Date:
September 30, 2021
Filing Date:
February 25, 2021
Export Citation:
Assignee:
MITSUBA CORP (JP)
International Classes:
H02K15/04; H02K1/27; H02K21/14
Domestic Patent References:
| WO2014124828A1 | 2014-08-21 |
Foreign References:
| JP2011223858A | 2011-11-04 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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