Title:
BASE PLATE, SPINDLE MOTOR, DISK DRIVE DEVICE, AND METHOD FOR MANUFACTURING BASE PLATE
Document Type and Number:
WIPO Patent Application WO/2023/042866
Kind Code:
A1
Abstract:
This base plate constitutes a part of a housing of a disk drive device, and is formed from a metal plate and a die-cast part. The metal plate includes a board-shaped bottom plate portion that spreads out perpendicular to an up-down extending axis of rotation of a disk. The die-cast part covers at least a part of the bottom plate portion. Metal which constitutes the bottom plate portion is higher in rigidity than metal which constitutes the die-cast part.
Inventors:
ITO MICHIHIRO (JP)
MIYOSHI KENTA (JP)
FURUYA RYO (JP)
HIRASAWA TOSHIHIRO (JP)
MIYOSHI KENTA (JP)
FURUYA RYO (JP)
HIRASAWA TOSHIHIRO (JP)
Application Number:
PCT/JP2022/034466
Publication Date:
March 23, 2023
Filing Date:
September 14, 2022
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
G11B33/02; G11B33/12; H02K5/06; H02K5/167
Foreign References:
| JP2014003830A | 2014-01-09 | |||
| JP2014154203A | 2014-08-25 | |||
| JP2019058017A | 2019-04-11 | |||
| JP2015050788A | 2015-03-16 | |||
| JP2017075340A | 2017-04-20 |
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