Rotation-type actuator actuated by temperature fluctuation or temperature gradient and energy harvesting device using same
US-2017314539-A1 · Nov 2, 2017 · US
Power generation device
US2018019652A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018019652-A1 |
| Application number | US-201615548575-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 15, 2016 |
| Priority date | Mar 9, 2015 |
| Publication date | Jan 18, 2018 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A power generation device includes a first magnetic body including a side surface that makes contact with or separates from the first side surface of the yoke, a second magnetic body including a side surface that makes contact with or separates from the second side surface of the yoke, and a magnet including a first magnetic pole face and a second magnetic pole face that has a magnetic pole different from a magnetic pole of the first magnetic pole face. The first magnetic pole face is attracted to the attraction surface of the first magnetic body, the second magnetic pole face is attracted to the attraction surface of the second magnetic body, and at least one of the first magnetic body and the second magnetic body rotates in a state of being attracted to the magnet.
First claim
Opening claim text (preview).
1 . A power generation device comprising: a yoke around which a coil is wound, the yoke having a first side surface located on a first direction side with respect to the coil and a second side surface located on a second direction side with respect to the coil, the second direction being opposite to the first direction; a first magnetic body including a side surface that makes contact with or separates from the first side surface of the yoke; a second magnetic body including a side surface that makes contact with or separates from the second side surface of the yoke; and a magnet including a first magnetic pole face and a second magnetic pole face that has a magnetic pole different from a magnetic pole of the first magnetic pole face, wherein the first magnetic pole face of the magnet is attracted to an attraction surface of the first magnetic body, the second magnetic pole face of the magnet is attracted to an attraction surface of the second magnetic body, and at least one of the first magnetic body and the second magnetic body rotates in a state of being attracted to the magnet. 2 . The power generation device according to claim 1 , wherein at least one of the attraction surface of the first magnetic body and the attraction surface of the second magnetic body has a curved shape protruding toward the magnet. 3 . The power generation device according to claim 1 , wherein each of the first side surface of the yoke and the side surface of the first magnetic body is planar, and the first side surface of the yoke and the side surface of the first magnetic body are parallel to each other in a state where the side surface of the first magnetic body is in contact with the first side surface of the yoke. 4 . The power generation device according to claim 1 , wherein each of the second side surface of the yoke and the side surface of the second magnetic body is planar, and the second side surface of the yoke and the side surface of the second magnetic body are parallel to each other in a state where the side surface of the second magnetic body is in contact with the second side surface of the yoke. 5 . The power generation device according to claim 1 , further comprising a drive member that supports the magnet, the first magnetic body, and the second magnetic body, wherein the first magnetic body and the second magnetic body make contact with or separate from the yoke by a slide movement of the drive member. 6 . The power generation device according to claim 1 , further comprising an auxiliary yoke disposed so as to be opposed to the first magnetic body and the second magnetic body, wherein the first magnetic body has an opposing surface that is opposed to the auxiliary yoke, and the second magnetic body has an opposing surface that is opposed to the auxiliary yoke.
Assignees
Inventors
Classifications
- H02K35/04Primary
with moving coil systems and stationary magnets · CPC title
- H02K35/02Primary
with moving magnets and stationary coil systems · CPC title
with reciprocating, linearly oscillating or vibrating parts · CPC title
Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit (arrangements for handling mechanical energy structurally associated with generators H02K7/00, e.g. H02K7/06) · CPC title
Linear generators; sectional generators · CPC title
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Frequently asked questions
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- What does patent US2018019652A1 cover?
- A power generation device includes a first magnetic body including a side surface that makes contact with or separates from the first side surface of the yoke, a second magnetic body including a side surface that makes contact with or separates from the second side surface of the yoke, and a magnet including a first magnetic pole face and a second magnetic pole face that has a magnetic pole dif…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02K35/04. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jan 18 2018 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).