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US 8,477,450 B2Granted
Base for motor and hard disk drive including the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsTae Young Choi, Hyun Ho Shin
Life of this patent
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Abstract
There is provided a base for a motor, the base including: a base body having a disk disposed thereon; an outer wall part defining an outer part of the base body; and at least one rib depressed from one surface of the base body and protruded toward the other surface thereof to thereby improve rigidity of the base body, wherein pressure in an inner edge of the rib is equal to or greater than pressure in an outer edge thereof at the time of rotation of the disk.
Claims16
A base for a motor, the base comprising:
- a base body having a disk disposed thereon;
- an outer wall part defining an outer part of the base body;
- and
- a plurality of ribs depressed from one surface of the base body and protruded toward the other surface thereof to thereby improve rigidity of the base body, the ribs extending in directions perpendicular to a rotation direction of the disk,
- wherein pressure in an inner edge of the ribs is equal to or greater than pressure in an outer edge thereof at the time of rotation of the disk,
- the base body including a rib connecting part connecting outer edges of the plurality of ribs to each other and depressed downwardly in an axial direction along an outer edge of the disk.
3 more elements
A base for a motor, the base comprising:
- a base body having a disk disposed thereon;
- an outer wall part defining an outer part of the base body;
- and
- a plurality of ribs depressed from one surface of the base body and protruded toward the other surface thereof to thereby improve rigidity of the base body, the ribs extending in directions perpendicular to a rotation direction of the disk,
- wherein a depth to which the ribs are depressed is changed in order to block an abnormal air flow due to the ribs at the time of rotation of the disk,
- the base body including a rib connecting part connecting outer edges of the plurality of ribs to each other and depressed downwardly in an axial direction along an outer edge of the disk.
3 more elements
Dependencies are inferred from the claim text.