Method for manufacturing interphase insulating sheet of rotating electric machine, and electric compressor
US10014756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2014 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Nov 15, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An overlapping portion of an insulating portion formed in an annular shape is held between a workbench having a linear projection and an ultrasonic horn having a circular projection with at least part of the linear projection and of the circular projection opposed to each other and ultrasonically welded. In the ultrasonic welding, even though the ultrasonic horn under ultrasonic vibration rotates on the overlapping portion of the insulating portion, the area in the overlapping portion held between the linear projection and the circular projection with at least part of the linear projection and of the circular projection opposed to each other is not reduced after ultrasonic vibration is applied to the ultrasonic horn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.