Divided ring for common-mode (cm) and differential-mode (dm) isolation
US-2016365189-A1 · Dec 15, 2016 · US
Vehicle with shielded power receiving coil
US10202045B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10202045-B2 |
| Application number | US-201314372368-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2013 |
| Priority date | Jan 16, 2012 |
| Publication date | Feb 12, 2019 |
| Grant date | Feb 12, 2019 |
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.
A vehicle includes a power receiving portion that contactlessly receives electric power from a power transmitting portion provided outside the vehicle and includes a shield member that is arranged around the power receiving portion in the same plane as a plane in which the power receiving portion is arranged, wherein the shield member includes a first shield region having a high shielding function and a second shield region having a shielding function lower than that of the first shield region at a position around the power receiving portion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vehicle comprising: a power receiving portion that contactlessly receives electric power from a power transmitting portion provided outside the vehicle; and a shield member that is arranged around the power receiving portion in the same plane as a plane in which the power receiving portion is arranged, wherein the shield member includes a first shield region having a high shielding function and a second shield region having a shielding function lower than that of the first shield region which are located at a position that surrounds the power receiving portion, wherein the vehicle has a vehicle long-side direction and a vehicle short-side direction perpendicular to the vehicle long-side direction in plan view in a state where the vehicle is stopped in a horizontal plane, and the first shield region of the shield member is arranged in the vehicle short-side direction with respect to the power receiving portion and the second shield region of the shield member is arranged in the vehicle long-side direction with respect to the power receiving portion. 2. The vehicle according to claim 1 , wherein the shield member includes a center portion and a flange portion disposed around the center portion so as to integrally extend radially outward from the center portion, the flange portion includes the first shield region and the second shield region, and a radial length of the first shield region of the flange portion is larger than a radial length of the second shield region of the flange portion, as measured from a center point of the center portion. 3. The vehicle according to claim 1 , wherein the shield member includes a cylindrical portion and a flange portion integrally extended axially from the cylindrical portion, the flange portion includes the first shield region and the second shield region, and an axial length of the first shield region of the flange portion is larger than an axial length of the second shield region of the flange portion. 4. The vehicle according to claim 1 , wherein the shield member includes a cylindrical portion, and members having a shielding function are adhered to inner sides of the cylindrical portion at the first shield region. 5. The vehicle according to claim 1 , wherein the shield member is partitioned by boundary lines forming four quadrants and the first shield region and the second shield region are disposed in alternating ones of the four quadrants. 6. The vehicle according to claim 1 , wherein the vehicle includes a vehicle-mounted device, and the shield member is arranged such that the vehicle-mounted device faces the second shield region. 7. The vehicle according to claim 1 , wherein the power receiving portion is mounted on a lower side of an under body of the vehicle. 8. The vehicle according to claim 1 , wherein a difference between a natural frequency of the power transmitting portion and a natural frequency of the power receiving portion is smaller than or equal to 10% of the natural frequency of the power receiving portion. 9. The vehicle according to claim 1 , wherein a coupling coefficient between the power receiving portion and the power transmitting portion is smaller than or equal to 0.1. 10. The vehicle according to claim 1 , wherein the power receiving portion receives electric power from the power transmitting portion through at least one of a magnetic field that is formed between the power receiving portion and the power transmitting portion and that oscillates at a predetermined frequency and an electric field that is formed between the power receiving portion and the power transmitting portion and that oscillates at the predetermined frequency. 11. A vehicle comprising: a power receiving portion that contactlessly receives electric power from a power transmitting portion provided outside the vehicle; and a shield member that is arranged around the power receiving portion in the same plane as a plane in which the power receiving portion is arranged, wherein the shield member includes a first shield region having a high shielding function and a second shield region having a shielding function lower than that of the first shield region which are located at a position that surrounds the power receiving portion, the shield member is arranged such that the first shield region includes a position having a minimum distance from the power receiving portion to an outer frame at a vehicle body outer side of a face on which the power receiving portion is installed. 12. The vehicle according to claim 11 , wherein the shield member includes a center portion and a flange portion disposed around the center portion so as to integrally extend radially outward from the center portion, the flange portion includes the first shield region and the second shield region, and a radial length of the first shield region of the flange portion is larger than a radial length of the second shield region of the flange portion, as measured from a center point of the center portion. 13. The vehicle according to claim 11 , wherein the shield member includes a cylindrical portion and a flange portion integrally extended axially from the cylindrical portion, the flange portion includes the first shield region and the second shield region, and an axial length of the first shield region of the flange portion is larger than an axial length of the second shield region of the flange portion. 14. The vehicle according to claim 11 , wherein the shield member includes a cylindrical portion, and members having a shielding function are adhered to inner sides of the cylindrical portion at the first shield region. 15. The vehicle according to claim 11 , wherein the shield member is partitioned by boundary lines forming four quadrants and the first shield region and the second shield region are disposed in alternating ones of the four quadrants. 16. The vehicle according to claim 11 , wherein the vehicle includes a vehicle-mounted device, and the shield member is arranged such that the vehicle-mounted device faces the second shield region. 17. The vehicle according to claim 11 , wherein the power receiving portion is mounted on a lower side of an under body of the vehicle. 18. The vehicle according to claim 11 , wherein a difference between a natural frequency of the power transmitting portion and a natural frequency of the power receiving portion is smaller than or equal to 10% of the natural frequency of the power receiving portion. 19. The vehicle according to claim 11 , wherein a coupling coefficient between the power receiving portion and the power transmitting portion is smaller than or equal to 0.1. 20. The vehicle according to claim 11 , wherein the power receiving portion receives electric power from the power transmitting portion through at least one of a magnetic field that is formed between the power receiving portion and the power transmitting portion and that oscillates at a predetermined frequency and an electric field that is formed between the power receiving portion and the power transmitting portion and that oscillates at the predetermined frequency. 21. The vehicle according to claim 16 , wherein the vehicle-mounted device is a muffler. 22. The vehicle according to claim 16 , wherein the vehicle-mounted device is a suspension.
Assignees
Inventors
Classifications
Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver · CPC title
- H01F27/288Primary
Shielding · CPC title
Pancake coils · CPC title
electro magnetic [EMI] · CPC title
involving the reduction of electric, magnetic or electromagnetic leakage fields · 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 US10202045B2 cover?
- A vehicle includes a power receiving portion that contactlessly receives electric power from a power transmitting portion provided outside the vehicle and includes a shield member that is arranged around the power receiving portion in the same plane as a plane in which the power receiving portion is arranged, wherein the shield member includes a first shield region having a high shielding funct…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd, Ichikawa Shinji, Nakamura Toru, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification H01F27/288. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 12 2019 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).