Terminal device and protective shell

Patent metadata

Field	Value
Publication number	US-11336335-B2
Application number	US-201916661611-A
Country	US
Kind code	B2
Filing date	Oct 23, 2019
Priority date	Apr 30, 2019
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

The present disclosure provides a terminal device and a protective shell, and belongs to the technical field of communication. The terminal device includes a body, a first coil, a second coil and a shielding member. The body includes a rear shell. The first coil is located in the body. The second coil is located in the body and close to one side of the rear shell, and the second coil at least partially overlaps the first coil. The shielding member covers the sides, far away from the rear shell, of the first coil and the second coil, and is located outside an overlapping portion of the first coil and the second coil, and the first coil is unshielded from the second coil.

First claim

What is claimed is:

1. A terminal device, comprising:
a body, wherein the body comprises a first end and a second end;
a first coil, wherein the first coil is located within the body;
a second coil, wherein the second coil at least partially overlaps the first coil, and is located between the first coil and the first end, the second coil is spaced apart from the first coil in a direction from the first end to the second end; and
a shielding member, wherein the shielding member overlaps the first coil and the second coil, and is between the second end and the first coil,
wherein the second coil comprises an overlapping portion and a non-overlapping portion wherein the overlapping portion overlaps the first coil,
the shielding member comprises a first sub shielding member and a second sub shielding member, wherein the first sub shielding member overlaps the first coil and the second sub shielding member overlaps the non-overlapping portion of the second coil, and
the first sub shielding member comprises an overlapping portion and a non-overlapping portion, wherein the overlapping portion of the first sub shielding member overlaps overlapping portion of the first coil, the non-overlapping portion of the first sub shielding member is opposite to the non-overlapping portion of the first coil, and a thickness of the overlapping portion of the first sub shielding member is greater than a thickness of the non-overlapping portion of the first sub shielding member.

2. The terminal device of claim 1 , wherein the first sub shielding member and the second sub shielding member are arranged to be spaced apart from each other.

3. The terminal device of claim 1 , wherein the first sub shielding member and the second sub shielding member form an integrated structure.

4. The terminal device of claim 1 , wherein the second coil completely overlaps the first coil, wherein the shielding member is located between the second end and the first coil, and the shielding member overlaps the first coil.

5. The terminal device of claim 1 , wherein the shielding member completely overlaps the first coil and the second coil.

6. The terminal device of claim 1 , further comprising:
a first switch arranged in the body, the first switch being configured to control the first coil to be energized and de-energized.

7. The terminal device of claim 1 , further comprising:
a second switch arranged in the body, the second switch being configured to control the second coil to be energized and de-energized.

8. A terminal device, comprising:
a body, comprising a first end and a second end;
a first coil, located within the body;
a second coil, wherein the second coil at least partially overlaps the first coil, and is located between the first coil and the first end, the second coil is spaced apart from the first coil in a direction from the first end to the second end;
a shielding member, wherein the shielding member overlaps the first coil and the second coil, and is between the second end and the first coil; and
a first wireless charging interface, formed in the body and configured to receive a current from a wireless charging coil,
wherein the second coil comprises an overlapping portion and a non-overlapping portion wherein the overlapping portion overlaps the first coil,
the shielding member comprises a first sub shielding member and a second sub shielding member, wherein the first sub shielding member overlaps the first coil and the second sub shielding member overlaps the non-overlapping portion of the second coil, and
the first sub shielding member comprises an overlapping portion and a non-overlapping portion, wherein the overlapping portion of the first sub shielding member overlaps overlapping portion of the first coil, the non-overlapping portion of the first sub shielding member is opposite to the non-overlapping portion of the first coil, and a thickness of the overlapping portion of the first sub shielding member is greater than a thickness of the non-overlapping portion of the first sub shielding member.

9. The terminal device of claim 8 , wherein the wireless charging coil is arranged in another device matched with the terminal device.

10. The terminal device of claim 8 , wherein the first coil comprises an overlapping portion overlapping with a second coil and a non-overlapping portion staggered with the second coil; and a thickness of a portion, opposite to the overlapping portion, of the shielding member is greater than a thickness of a portion, opposite to the non-overlapping portion, of the shielding member.

11. The terminal device of claim 8 , wherein the shielding member completely overlaps the first coil.

12. The terminal device of claim 8 , further comprising: a first switch arranged in the terminal device and configured to control the first coil to be energized and de-energized.

13. The terminal device of claim 8 , wherein the first wireless charging interface is either a Mini Universal Serial Bus (USB) interface, a Micro USB interface, a Dock interface or a USB-Type C.

14. A terminal device, comprising:
a body, comprising a first end and a second end;
a first coil, located within the body;
a second coil, wherein the second coil at least partially overlaps the first coil, and is located between the first coil and the first end, the second coil is spaced apart from the first coil in a direction from the first end to the second end;
a shielding member, wherein the shielding member overlaps the first coil and the second coil, and is between the second end and the first coil; and
a first wireless charging interface, formed in the body and configured to send a current to a wireless charging coil,
wherein the second coil comprises an overlapping portion and a non-overlapping portion wherein the overlapping portion overlaps the first coil,
the shielding member comprises a first sub shielding member and a second sub shielding member, wherein the first sub shielding member overlaps the first coil and the second sub shielding member overlaps the non-overlapping portion of the second coil, and
the first sub shielding member comprises an overlapping portion and a non-overlapping portion, wherein the overlapping portion of the first sub shielding member overlaps overlapping portion of the first coil, the non-overlapping portion of the first sub shielding member is opposite to the non-overlapping portion of the first coil, and a thickness of the overlapping portion of the first sub shielding member is greater than a thickness of the non-overlapping portion of the first sub shielding member.

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Wu Kaiqi
• Xue Yibo
• Wang Yanteng

Classifications

• H02J7/731

  specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence) · CPC title

• H04M1/026 Primary

  Details of the structure or mounting of specific components · CPC title

• H02J50/70

  involving the reduction of electric, magnetic or electromagnetic leakage fields · CPC title

• H02J50/005

  Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices · CPC title

• H02J50/12

  of the resonant type · CPC title