Components of an electronic device and methods for their assembly
US-2024431057-A1 · Dec 26, 2024 · US
Press-fitting structure
US9350218B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9350218-B2 |
| Application number | US-201214117583-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 17, 2012 |
| Priority date | May 18, 2011 |
| Publication date | May 24, 2016 |
| Grant date | May 24, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A press-fitting structure has a press-fitting face of a rotor yoke formed from a laminated steel sheet is press fitted onto a face to be press-fitted of a rotor shaft, fitting is carried out with plastic deformation while the first projection of a press-fitting face of a rotor yoke, on which a first projection and a first recess extending in substantially the press-fitting direction are formed in turn, and the second projection of the face to be press-fitted of the rotor shaft, on which a second projection and a second recess extending in the direction intersecting the press-fitting direction are formed in turn, are in contact with each other. Since in a state in which press fitting is completed, the amount of plastic deformation of the second projection of the rotor shaft is larger than the amount of plastic deformation of the first projection of the rotor yoke.
First claim
Opening claim text (preview).
The invention claimed is: 1. A press-fitting structure that fixes a laminated steel sheet forming a magnetic path to another member by means of press fitting, wherein a first projection and a first recess are formed in turn on a press-fitting face of the laminated steel sheet, the first projection and the first recess extending in substantially a press-fitting direction, a second projection and a second recess are formed in turn on a face to be press-fitted of said another member, the second projection and the second recess extending in a direction intersecting the press-fitting direction, in a state in which the first projection and the second projection have been put in contact with each other and press fitted, an amount of plastic deformation of the second projection is larger than an amount of plastic deformation of the first projection, and a pitch of the second projection is larger than a sheet thickness of a single sheet of the laminated steel sheet. 2. The press-fitting structure according to claim 1 , wherein a hardness of the laminated steel sheet is higher than a hardness of said another member. 3. The press-fitting structure according to claim 2 , wherein a height of the first projection is smaller than the sheet thickness of a single sheet of the laminated steel sheet. 4. The press-fitting structure according to claim 1 , wherein a height of the first projection is smaller than the sheet thickness of a single sheet of the laminated steel sheet.
Assignees
Inventors
Classifications
Dynamoelectric machine · CPC title
Rotor · CPC title
to inner stators · CPC title
Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures · CPC title
Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures · CPC title
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- What does patent US9350218B2 cover?
- A press-fitting structure has a press-fitting face of a rotor yoke formed from a laminated steel sheet is press fitted onto a face to be press-fitted of a rotor shaft, fitting is carried out with plastic deformation while the first projection of a press-fitting face of a rotor yoke, on which a first projection and a first recess extending in substantially the press-fitting direction are formed …
- Who is the assignee on this patent?
- Kubota Makoto, Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B23P11/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 24 2016 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).