Magnet fixing method and magnet fixing apparatus
US-2024120815-A1 · Apr 11, 2024 · US
Motor rotor including a resolver rotor for detecting rotation position
US8963387B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8963387-B2 |
| Application number | US-201013518297-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 28, 2010 |
| Priority date | Dec 24, 2009 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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- Title
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Abstract
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A motor rotor and a method for manufacturing a motor rotor, enabling crimping of the resolver rotor at low cost with less influence on the detection accuracy. A motor rotor includes a resolver rotor and a rotor shaft to which the resolver rotor is affixed by crimping. The rotor shaft includes a first stepped section with which a crimping punch makes contact to deform the first stepped section, a second stepped section with which an end surface of the resolver rotor makes contact, and a cutout groove formed in a surface which is located near the first stepped section and with which an inner peripheral hole section of the resolver rotor makes contact. In the crimping operation, the first stepped section of the rotor shaft is bent within the cutout groove to form a crimping protrusion which presses the end surface of the resolver rotor.
First claim
Opening claim text (preview).
The invention claimed is: 1. A motor rotor includes a resolver rotor for detecting a rotation position, and a shaft crimped to the resolver rotor, wherein the shaft includes a first stepped portion to be deformed by a punch abutting thereon during crimping, a second stepped portion to which an end face of the resolver rotor is abutted, and a recess formed close to the first stepped portion and in a surface contacted by a circumferential inner hole of the resolver rotor, wherein,…
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Frequently asked questions
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- What does patent US8963387B2 cover?
- A motor rotor and a method for manufacturing a motor rotor, enabling crimping of the resolver rotor at low cost with less influence on the detection accuracy. A motor rotor includes a resolver rotor and a rotor shaft to which the resolver rotor is affixed by crimping. The rotor shaft includes a first stepped section with which a crimping punch makes contact to deform the first stepped section, …
- Who is the assignee on this patent?
- Yasuda Hideaki, Satake Yasuyuki, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02K1/28. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 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).