Title:
CORE BLOCK, STACKED CORE, AND ROTATING ELECTRICAL MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/262298
Kind Code:
A1
Abstract:
This stacked core comprises a plurality of core blocks which are linked in an annular shape to form the stacked core, wherein the core blocks are provided with a plurality of electrical steel plate pieces that are stacked on one another, and bonding portions which are provided between the electrical steel plate pieces that are adjacent to one another in the stacking direction and which bond the electrical steel plate pieces together, and wherein the bonded surface area ratio of the electrical steel plate pieces resulting from the bonding portions is at least equal to 1% and at most equal to 60%.
Inventors:
HIRAYAMA RYU (JP)
TAKEDA KAZUTOSHI (JP)
TAKEDA KAZUTOSHI (JP)
Application Number:
PCT/JP2020/024389
Publication Date:
December 30, 2020
Filing Date:
June 22, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
H02K1/18
Foreign References:
| JP2011066987A | 2011-03-31 | |||
| JP2012029494A | 2012-02-09 | |||
| JP2009072014A | 2009-04-02 | |||
| JP2017011863A | 2017-01-12 | |||
| JP2010136467A | 2010-06-17 | |||
| JP2019118337A | 2019-07-22 | |||
| JP2011023523A | 2011-02-03 | |||
| JP2011066987A | 2011-03-31 | |||
| JP2012029494A | 2012-02-09 | |||
| JP2009072014A | 2009-04-02 | |||
| JP2013089883A | 2013-05-13 | |||
| US20190028006A1 | 2019-01-24 |
Other References:
See also references of EP 3993224A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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