Title:
STATOR MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/054407
Kind Code:
A1
Abstract:
The present invention uniformly welds two coil ends to a busbar with one weld. Provided is a stator manufacturing method in which two coil ends (181) that lead out from a coil (18) wrapped around teeth of a stator core are welded to a coil joining part (22U2) of a busbar (22U), so as to manufacture a stator. In this manufacturing method, when the two coil ends (181) are welded to the coil joining part (22U2) by generating an arc between one of the coil ends (181) and an electrode of an arc welding machine in a state where the two coil ends (181) which each extend in a first direction and are adjacent to each other in a second direction are placed in contact in a third direction with an end face of the coil joining part (22U2), the combined volume of the two coil ends (181) and the coil joining part (22U2) is set to be greater on one coil end (181) side than on the other coil end (181) side.
Inventors:
ITO KEIICHI (JP)
Application Number:
PCT/JP2022/036034
Publication Date:
April 06, 2023
Filing Date:
September 27, 2022
Export Citation:
Assignee:
NHK SPRING CO LTD (JP)
International Classes:
H02K15/04; H02K3/50
Domestic Patent References:
| WO2013042248A1 | 2013-03-28 |
Foreign References:
| JP2019118200A | 2019-07-18 | |||
| JP2020102981A | 2020-07-02 | |||
| JP2014007795A | 2014-01-16 | |||
| JP2010200462A | 2010-09-09 | |||
| JP2008228425A | 2008-09-25 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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