Portable wireless charger and cradle

• US 10,236,717 B2
• Filed: 05/10/2016
• Issued: 03/19/2019
• Est. Priority Date: 06/08/2015
• Status: Active Grant

• Current Assignee: Nera Innovations Limited (Atlantic IP Services Limited)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Song, Young Kil
• Primary Examiner(s): Fantu, Yalkew
• Application Number:
  US15/151,243
• Publication Number:
  US 20160359356A1
• Time in Patent Office: 1,043 Days
• Field of Search: 320108
• CPC Class Codes: H02J 50/00 Circuit arrangements or systems for wireless supply or distribution of electric power
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence

Abstract

A portable apparatus can be used for a wireless charging operation. The portable apparatus includes a charging body including a transmitter configured to send a power signal for a charging operation, a first rotating member supporting a charging target, and a second rotating member supporting the charging body. Herein, the first rotating member and the second rotating member revolve around the charging body in a predetermined direction, but move within different rotating angles.

Claims

1. A portable apparatus for a wireless charging operation, comprising:

a charging body including a transmitter configured to send a power signal for a charging operation;

a first rotating member supporting a charging target;

a second rotating member supporting the charging body; and

a hinging member configured to couple each of the charging body, the first rotating member and the second rotating member to each other,

wherein the first rotating member and the second rotating member revolve around the charging body in a predetermined direction, but move within different rotating angles by the hinging member.

2. The portable apparatus according to claim 1, further comprising a first rotating control unit configured to make the first rotating member and the second rotating member co-rotate until the first rotating member reaches to the maximum of a first rotating angle while the second rotating member touches, or moves away from, the charging body,

wherein the first rotating control unit comprises either a first dent formed on the first rotating member and a first protrusion formed on the second rotating member, or a second protrusion formed on the first rotating member and a second dent formed on the second rotating member.

3. The portable apparatus according to claim 1, further comprising a first fastening unit configured to fasten the second rotating member with the charging body, wherein the first fastening unit comprises either a third dent formed on the second rotating member and a third protrusion formed on the charging body, or a fourth protrusion formed on the charging body and a fourth dent formed on the second rotating member.

4. The portable apparatus according to claim 1, wherein the maximum of a first rotating angle for the first rotating member ranges from 90°

to 140°

while the maximum of a second rotating angle for the second rotating member ranges from 270°

to 330°

.

5. The portable apparatus according to claim 1, wherein the hinging member comprises

an auxiliary rotor engaged with the first rotating member and the second rotating member so as to make the first rotating member and the second rotating member co-rotate in the predetermined direction.

6. The portable apparatus according to claim 5, wherein the auxiliary rotor comprises:

a connection part configured to engage the auxiliary rotor with the first rotating member;

a first path guiding part configured to guide a movement of the first rotating member;

a second path supporting part configured to guide a movement of the second rotating member; and

a first stopping part configured to determine a maximum rotating angle of the first rotating member.

7. The portable apparatus according to claim 6, wherein the first path guiding part and the second path supporting part are an inner side and an outer side of a single ring-type structure.

8. The portable apparatus according to claim 6, wherein the charging body comprises a first revolving part engaged with the inner side of the ring-type structure in order to move along the first path guiding part and to be stopped by the first stopping part.

9. The portable apparatus according to claim 6, wherein the auxiliary rotor further comprises:

a first backlashing stopping unit configured to avoid backlashing of the first rotating member, which incurs due to a reaction caused by a movement of the second rotating member when the second rotating member moves beyond the maximum of the first rotating angle and a movement of the first rotating member is stopped by the first stopping part.

10. The portable apparatus according to claim 1, wherein the second rotating member comprises:

a first hole formed to be engaged with the hinging member;

a second hole formed to determine a second rotating angle of the second rotating member; and

a second stopping part protruding from an inner surface of the second hole so as to determine a maximum of the second rotating angle.

11. The portable apparatus according to claim 10, wherein the second hole has a larger diameter than the first hole.

12. The portable apparatus according to claim 10, wherein the charging body comprises a second revolving part configured to move along a route formed between the hinging member and the second hole.

13. The portable apparatus according to claim 10, wherein the second rotating member further comprises a second backlashing stopping unit configured to avoid backlashing of the second rotating member, which incurs due to a reaction caused by a movement of the second rotating member when the second rotating member reaches to the maximum of the second rotating angle.

14. The portable apparatus according to claim 13, wherein the charging body comprises a fastening unit corresponding to the second backlashing stopping unit,

wherein the fastening unit, before reaching to the second backlashing stopping unit, touches the second rotating member to thereby increase a frictional force against a movement of the second rotating member in order to inform that the second rotating member has moved up to the maximum of the second rotating angle.

15. The portable apparatus according to claim 14, wherein the second backlashing stopping unit has a groove-type structure while the fastening unit has a protrusion-type structure.

16. The portable apparatus according to claim 10, wherein the second rotating member comprises a second revolving alert part configured to increase a frictional force against a movement guided by the second hole in order to inform that the second rotating member has moved up to the maximum of the second rotating angle.

17. The portable apparatus according to claim 1, further comprising at least one of:

a first strain avoiding part configured to deviate the charging body from the hinging member when an external force to rotate the second rotating member beyond a predetermined rotating angle is applied; and

a second strain avoiding part configured to deviate the charging body from the second rotating member when the external force is applied.

18. The portable apparatus according to claim 17, wherein the first strain avoiding part comprises a first inclined plane formed on the hinging member.

19. The portable apparatus according to claim 1, wherein the transmitter comprises at least one of antenna or coils configured to provide the power signal into the charging target.