Fan bearing cup connection structure
US-2016352180-A1 · Dec 1, 2016 · US
Spindle motor, and disk drive apparatus including the spindle motor
US9190880B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9190880-B2 |
| Application number | US-201514690599-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 20, 2015 |
| Priority date | Dec 27, 2010 |
| Publication date | Nov 17, 2015 |
| Grant date | Nov 17, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A spindle motor includes a base portion and a bearing mechanism. A fixing region, which includes a first region at which the base portion and the bearing mechanism are fixed to each other and a second region at which a seal gap is defined between the base portion and the bearing mechanism, is located between an inner circumferential portion of the base portion which defines a through hole and an outer circumferential portion of the bearing mechanism. The inner circumferential portion of the base portion has, at least in the second region, a degree of surface roughness greater than a degree of surface roughness of the outer circumferential portion of the bearing mechanism. The seal gap gradually decreases in radial width with increasing height, and includes an adhesive along an entire circumference of the seal gap.
First claim
Opening claim text (preview).
What is claimed is: 1. A spindle motor for use in a disk drive apparatus, the spindle motor comprising: a housing defining an interior space; a bearing mechanism including a shaft portion extending in an axial direction; a stationary portion including a base portion defining a portion of the housing; and a rotating portion configured to rotate about a central axis with respect to the stationary portion through the bearing mechanism; wherein the base portion includes a thro…
Assignees
Inventors
Classifications
- H02K5/1672Primary
Electricity · mapped topic
- F16C33/74Primary
Mechanical Engineering · mapped topic
Physics · mapped topic
Mechanical Engineering · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9190880B2 cover?
- A spindle motor includes a base portion and a bearing mechanism. A fixing region, which includes a first region at which the base portion and the bearing mechanism are fixed to each other and a second region at which a seal gap is defined between the base portion and the bearing mechanism, is located between an inner circumferential portion of the base portion which defines a through hole and a…
- Who is the assignee on this patent?
- Nidec Corp
- What technology area does this patent fall under?
- Primary CPC classification H02K5/1672. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).