Magnet fixing method and magnet fixing apparatus
US-2024120815-A1 · Apr 11, 2024 · US
Electric motor and electric power steering device using the same
US2016285331A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016285331-A1 |
| Application number | US-201415033681-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 19, 2014 |
| Priority date | Mar 19, 2014 |
| Publication date | Sep 29, 2016 |
| Grant date | — |
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Abstract
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An electric motor includes a cylindrical holder mounted to an end of a rotation shaft, a sensor magnet mounted to the holder, and a rotation sensor mounted at a position at which the rotation sensor opposes the sensor magnet in a direction of an axis of rotation and detecting a rotating field of the sensor magnet. The end of the rotation shaft has a cylindrical shape with a non-circular cross section formed of at least one plane and a curved surface in an outer peripheral portion. At least one of an inner peripheral portion and an outer peripheral portion of the holder forms a non-circular cross section formed of a plane parallel to the axis of rotation and a curved surface connected to the plane. The plane of the rotation shaft and the plane of the holder are parallel to each other and the curved surface of the rotation shaft and the curved surface of the holder are in contact with each other.
First claim
Opening claim text (preview).
1 - 9 . (canceled) 10 . An electric motor comprising; a rotation shaft; a rotor mounted to the rotation shaft; a stator mounted so as to oppose an outer peripheral surface of the rotor; a cylindrical holder mounted to an end of the rotation shaft; a sensor magnet mounted to the holder; and a rotation sensor mounted at a position at which the rotation sensor opposes the sensor magnet in a direction of an axis of rotation and detecting a rotating field of the senso…
Assignees
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Classifications
Electricity · mapped topic
Operations & Transport · mapped topic
Electricity · mapped topic
- H02K1/28Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US2016285331A1 cover?
- An electric motor includes a cylindrical holder mounted to an end of a rotation shaft, a sensor magnet mounted to the holder, and a rotation sensor mounted at a position at which the rotation sensor opposes the sensor magnet in a direction of an axis of rotation and detecting a rotating field of the sensor magnet. The end of the rotation shaft has a cylindrical shape with a non-circular cross s…
- Who is the assignee on this patent?
- Mitsubishi Electric Corp
- 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 Thu Sep 29 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).