Wireless charging coil of wireless power transmitter and receiver, and method for producing same
US-2019272943-A1 · Sep 5, 2019 · US
Wireless charger having electromagnetic shielding function
US10790083B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10790083-B2 |
| Application number | US-201816163244-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 17, 2018 |
| Priority date | Jun 20, 2018 |
| Publication date | Sep 29, 2020 |
| Grant date | Sep 29, 2020 |
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Abstract
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A wireless charger has an electromagnetic shielding function to efficiently shield electromagnetic waves generated in a transmitting coil of the wireless charger. The wireless charger includes a transmitting coil generating a magnetic field by a high frequency signal. The wireless charger further includes at least two electromagnetic wave shielding filters located on the transmitting coil and shielding electromagnetic waves generated in the transmitting coil.
First claim
Opening claim text (preview).
What is claimed is: 1. A wireless charger having an electromagnetic shielding function, comprising: a transmitting coil generating a magnetic field by a high frequency signal; and at least two electromagnetic wave shielding filters located on the transmitting coil and shielding electromagnetic waves generated in the transmitting coil, wherein when there are a first electromagnetic wave shielding filter and a second electromagnetic wave shielding filter, the first and second electromagnetic wave shielding filters have the same structure, wherein the first electromagnetic wave shielding filter is located on a left side of the transmitting coil, and wherein the second electromagnetic wave shielding filter is located on a right side of the transmitting coil. 2. A wireless charger having an electromagnetic shielding function, comprising: a transmitting coil generating a magnetic field by a high frequency signal; and at least two electromagnetic wave shielding filters located on the transmitting coil and shielding electromagnetic waves generated in the transmitting coil, wherein when there are a first electromagnetic wave shielding filter and a second electromagnetic wave shielding filter, the first and second electromagnetic wave shielding filters have the same structure, wherein the first electromagnetic wave shielding filter is located on an upper end of the transmitting coil, and wherein the second electromagnetic wave shielding filter is located on a lower end of the transmitting coil. 3. A wireless charger having an electromagnetic shielding function, comprising: a transmitting coil generating a magnetic field by a high frequency signal; and at least two electromagnetic wave shielding filters located on the transmitting coil and shielding electromagnetic waves generated in the transmitting coil, wherein when there are a first electromagnetic wave shielding filter, a second electromagnetic wave shielding filter, a third electromagnetic wave shielding filter, and a fourth electromagnetic wave shielding filter, the first, second, third, and fourth electromagnetic wave shielding filters have the same structure, wherein the first electromagnetic wave shielding filter is located on an upper left side of the transmitting coil, wherein the second electromagnetic wave shielding filter is located on an upper right side of the transmitting coil, wherein the third electromagnetic wave shielding filter is located on a lower left side of the transmitting coil, and wherein the fourth electromagnetic wave shielding filter is located on a lower right side of the transmitting coil. 4. A wireless charger having an electromagnetic shielding function, comprising: a transmitting coil generating a magnetic field by a high frequency signal; and at least two electromagnetic wave shielding filters located on the transmitting coil and shielding electromagnetic waves generated in the transmitting coil, wherein when there are a first electromagnetic wave shielding filter, a second electromagnetic wave shielding filter, a third electromagnetic wave shielding filter, and a fourth electromagnetic wave shielding filter, the first, second, third, and fourth electromagnetic wave shielding filters have the same structure, wherein the first electromagnetic wave shielding filter is located on an upper end of the transmitting coil, wherein the second electromagnetic wave shielding filter is located on a left side of the transmitting coil, wherein the third electromagnetic wave shielding filter is located on a right side of the transmitting coil, and wherein the fourth electromagnetic wave shielding filter is located on a lower end of the transmitting coil. 5. A wireless charger having an electromagnetic shielding function, comprising: a transmitting coil generating a magnetic field by a high frequency signal; and at least two electromagnetic wave shielding filters located on the transmitting coil and shielding electromagnetic waves generated in the transmitting coil, wherein the transmitting coil comprises a first transmitting coil, a second transmitting coil, and a third transmitting coil, wherein when there are a first electromagnetic wave shielding filter, a second electromagnetic wave shielding filter, a third electromagnetic wave shielding filter, a fourth electromagnetic wave shielding filter, a fifth electromagnetic wave shielding filter, and a sixth electromagnetic wave shielding filter, the first, second, fifth, and sixth electromagnetic wave shielding filters have the same structure, and the third and fourth electromagnetic wave shielding filters have the same structure, wherein the first electromagnetic wave shielding filter is located on an upper left side of the first transmitting coil, wherein the second electromagnetic wave shielding filter is located on an upper right side of the first transmitting coil, wherein the third electromagnetic wave shielding filter is located on an upper end of the third transmitting coil, wherein the fourth electromagnetic wave shielding filter is located on a lower end of the third transmitting coil, wherein the fifth electromagnetic wave shielding filter is located on a lower left side of the second transmitting coil, wherein the sixth electromagnetic wave shielding filter is located on a lower right side of the second transmitting coil, wherein a center point of the first electromagnetic wave shielding filter, a center point of the second electromagnetic wave shielding filter, and a center point of the third electromagnetic wave shielding filter are located on the first transmitting coil, and wherein a center point of the fourth electromagnetic wave shielding filter, a center point of the fifth electromagnetic wave shielding filter, and a center point of the sixth electromagnetic wave shielding filter are located on the second transmitting coil. 6. A wireless charger having an electromagnetic shielding function, comprising: a transmitting coil generating a magnetic field by a high frequency signal; and at least two electromagnetic wave shielding filters located on the transmitting coil and shielding electromagnetic waves generated in the transmitting coil, wherein the transmitting coil comprises a first transmitting coil, a second transmitting coil, and a third transmitting coil, wherein when there are a first electromagnetic wave shielding filter, a second electromagnetic wave shielding filter, a third electromagnetic wave shielding filter, a fourth electromagnetic wave shielding filter, a fifth electromagnetic wave shielding filter, and a sixth electromagnetic wave shielding filter, the first and sixth electromagnetic wave shielding filters have the same structure, and the second, third, fourth, and fifth electromagnetic wave shielding filters have the same structure, wherein the first electromagnetic wave shielding filter is located on an upper end of the first transmitting coil, wherein the second electromagnetic wave shielding filter is located on an upper left side of the third transmitting coil, wherein the third electromagnetic wave shielding filter is located on an upper right side of the third transmitting coil, wherein the fourth electromagnetic wave shielding filter is located on a lower left side of the third transmitting coil, wherein the fifth electromagnetic wave shielding filter is located on a lower right side of the third transmitting coil, wherein the sixth electromagnetic wave shielding filter is located on a lower end of the second transmitting coil, wherein a center point of the first electromagnetic wave shielding filter is located on the first transmitting coil, wherein a center point of the second electromagnetic wave shielding filter, a center point of the third electromagnetic wave shielding filter, a
Assignees
Inventors
Classifications
of the resonant type · CPC title
using inductive coupling · CPC title
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries · CPC title
- H01F27/363Primary
made of electrically conductive material · CPC title
- H02J50/70Primary
involving the reduction of electric, magnetic or electromagnetic leakage fields · CPC title
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- What does patent US10790083B2 cover?
- A wireless charger has an electromagnetic shielding function to efficiently shield electromagnetic waves generated in a transmitting coil of the wireless charger. The wireless charger includes a transmitting coil generating a magnetic field by a high frequency signal. The wireless charger further includes at least two electromagnetic wave shielding filters located on the transmitting coil and s…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Motors Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F27/363. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 29 2020 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).