Composite material, magnetic core for magnetic component, reactor, converter, and power conversion device
US-2017365387-A1 · Dec 21, 2017 · US
Composite component comprising ring-shaped bonded magnet and method of manufacturing the same
US11056255B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11056255-B2 |
| Application number | US-201815965300-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 27, 2018 |
| Priority date | Apr 28, 2017 |
| Publication date | Jul 6, 2021 |
| Grant date | Jul 6, 2021 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present invention relates to a composite component including a metal component having a substantially cylindrical shape or a substantially annular shape, and a ring-shaped bonded magnet disposed on the outer periphery of the metal component, the ring-shaped bonded magnet containing a thermoplastic resin, magnetic particles, and rubber particles.
First claim
Opening claim text (preview).
What is claimed is: 1. A composite, comprising: a metal component having a substantially cylindrical shape or a substantially annular shape; and a ring-shaped bonded magnet disposed on an outer periphery of the metal component, the ring-shaped bonded magnet comprising a thermoplastic resin, magnetic particles, and rubber particles, wherein an average particle size of the rubber particles is more than 0.7 μm and less than 1 mm, and wherein an average particle size of the magnetic particles is 10 μm or less. 2. The composite according to claim 1 , wherein each of the rubber particles comprises silicone rubber. 3. A method of manufacturing the composite according to claim 2 , the method comprising: kneading a thermoplastic resin with magnetic particles to obtain a compound; and integrally molding the compound and rubber particles with a metal component having a substantially cylindrical shape or a substantially annular shape. 4. The method according to claim 3 , wherein the rubber particles are added in an amount of 0.3 parts by mass or greater and 10 parts by mass or less with respect to 100 parts by mass of the compound. 5. A method of manufacturing the composite according to claim 1 , the method comprising: kneading a thermoplastic resin with magnetic particles to obtain a compound; and integrally molding the compound and rubber particles with a metal component having a substantially cylindrical shape or a substantially annular shape. 6. The method according to claim 5 , wherein the rubber particles are added in an amount of 0.3 parts by mass or greater and 10 parts by mass or less with respect to 100 parts by mass of the compound. 7. A composite, comprising: a metal component having a substantially cylindrical shape or a substantially annular shape; and a ring-shaped bonded magnet disposed on an outer periphery of the metal component, the ring-shaped bonded magnet comprising a thermoplastic resin, magnetic particles, and rubber particles, wherein at least some of the rubber particles are rubber magnet particles containing magnetic particles, wherein an average particle size of the rubber particles is more than 0.7 μm and less than 1 mm. 8. The composite according to claim 7 , wherein each of the rubber particles comprises silicone rubber. 9. A method of manufacturing the composite according to claim 8 , the method comprising: kneading a thermoplastic resin with magnetic particles to obtain a compound; and integrally molding the compound and rubber particles with a metal component having a substantially cylindrical shape or a substantially annular shape. 10. A method of manufacturing the composite according to claim 7 , the method comprising: kneading a thermoplastic resin with magnetic particles to obtain a compound; and integrally molding the compound and rubber particles with a metal component having a substantially cylindrical shape or a substantially annular shape. 11. A method of manufacturing a composite comprising: a metal component having a substantially cylindrical shape or a substantially annular shape; and a ring-shaped bonded magnet disposed on an outer periphery of the metal component, wherein the ring-shaped bonded magnet comprising a thermoplastic resin, magnetic particles, and rubber particles, the method comprising: kneading a thermoplastic resin with magnetic particles to obtain a compound; and integrally molding the compound and rubber particles with a metal component having a substantially cylindrical shape or a substantially annular shape, wherein an average particle size of the magnetic particles is 10 μm or less. 12. The method according to claim 11 , wherein the rubber particles are added in an amount of 0.3 parts by mass or greater and 10 parts by mass or less with respect to 100 parts by mass of the compound.
Assignees
Inventors
Classifications
- H01F41/0266Primary
Moulding; Pressing (H01F41/0273 takes precedence; hard magnetic particles H01F1/06, H01F1/11) · CPC title
in a bonding agent · CPC title
in a bonding agent · CPC title
by injection molding · CPC title
Processes characterised by the sequence of their steps · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11056255B2 cover?
- The present invention relates to a composite component including a metal component having a substantially cylindrical shape or a substantially annular shape, and a ring-shaped bonded magnet disposed on the outer periphery of the metal component, the ring-shaped bonded magnet containing a thermoplastic resin, magnetic particles, and rubber particles.
- Who is the assignee on this patent?
- Nichia Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F41/0266. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 06 2021 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).