Rolling bearing, pivot assembly bearing, and disk drive apparatus
US-2024417645-A1 · Dec 19, 2024 · US
Spindle motor and disk drive apparatus
US2016190875A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016190875-A1 |
| Application number | US-201514690587-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 20, 2015 |
| Priority date | Dec 25, 2014 |
| Publication date | Jun 30, 2016 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A stationary portion of a spindle motor includes a stator portion and an outside surface. The stator portion includes a stator core and coils. The outside surface extends in an axial direction parallel or substantially parallel to a central axis, and is centered on the central axis. The spindle motor includes a fixing portion at which an inside surface of the stator core and the outside surface are fixed to each other. The fixing portion includes a first press fit portion, a second press fit portion, and a gap arranged therein. The gap is located between the first press fit portion and the second press fit portion. The second press fit portion is located above the first press fit portion. At least a portion of the second press fit portion is located above a middle of the stator core in the axial direction.
First claim
Opening claim text (preview).
What is claimed is: 1 . A spindle motor comprising: a stationary portion; and a rotating portion configured to rotate about a central axis extending in a vertical direction with respect to the stationary portion; wherein the stationary portion includes: a stator portion including a stator core including a plurality of tooth portions, and coils wound around the plurality of tooth portions; and an outside surface which extends in an axial direction parallel or substantially…
Assignees
Inventors
Classifications
Physics · mapped topic
Electricity · mapped topic
- G11B19/2009Primary
Physics · mapped topic
- H02K1/12Primary
Electricity · mapped topic
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- What does patent US2016190875A1 cover?
- A stationary portion of a spindle motor includes a stator portion and an outside surface. The stator portion includes a stator core and coils. The outside surface extends in an axial direction parallel or substantially parallel to a central axis, and is centered on the central axis. The spindle motor includes a fixing portion at which an inside surface of the stator core and the outside surface…
- Who is the assignee on this patent?
- Nidec Corp
- What technology area does this patent fall under?
- Primary CPC classification G11B19/2009. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Jun 30 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).