Wireless charging device

• US 9,318,914 B2
• Filed: 10/09/2013
• Issued: 04/19/2016
• Est. Priority Date: 08/23/2013
• Status: Active Grant

• Current Assignee: Champ Tech Optical (FOSHAN) Corporation (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Foxconn Technology Co., Ltd., Champ Tech Optical (FOSHAN) Corporation (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Chen, Hai-Lin, Zhao, Di-Qiong, Huang, Ching-Hsing, Lin, Yung-Ping
• Primary Examiner(s): Tso, Edward
• Assistant Examiner(s): Omar, Ahmed
• Application Number:
  US14/049,225
• Publication Number:
  US 20150054450A1
• Time in Patent Office: 923 Days
• Field of Search: 320/108
• US Class Current: 1/1
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/005 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 Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H04B 5/26 using coils

Abstract

The present disclose relates to a wireless charging device for charging a portable electronic device. The wireless charging device includes a charging panel, a transmitting unit and a heat dissipation unit. The charging panel includes a first surface and a second surface opposite to the first surface, the first surface supports the portable electronic device, and the portable electronic device includes a top surface away from the charging panel. The transmitting unit includes a coil for generating electromagnetic signals for charging the portable electronic device. The heat dissipation unit includes a base and a pressing portion connected to the base. The base thermally contacts the second surface of the charging panel, and the pressing portion thermally contacts the top surface of the portable electronic device.

Claims

1. A wireless charging device for charging a portable electronic device, comprising:

a charging panel comprising a first surface and a second surface opposite to the first surface, the first surface supporting the portable electronic device, the portable electronic device comprising a top surface away from the charging panel;

a transmitting unit comprising a coil for generating electromagnetic signals for charging the portable electronic device; and

a heat dissipation unit comprising a base and a pressing portion connected to the base, the base thermally contacting the second surface of the charging panel, the pressing portion thermally contacting the top surface of the portable electronic device, and the base and the pressing portion clamping the portable electronic device sandwiched therebetween.

2. The wireless charging device of claim 1, wherein the pressing portion is connected to the base via a connecting portion, the connecting portion extending upwardly from an end of the base and then extending horizontally and parallel to the base.

3. The wireless charging device of claim 2, wherein the pressing portion comprises a supporting part extending upwardly from an end of the connecting portion and a pressing part extending horizontally from an end of the supporting part.

4. The wireless charging device of claim 2, wherein the pressing part is parallel to the base.

5. The wireless charging device of claim 3, wherein the supporting part is perpendicular to the base and the pressing part.

6. The wireless charging device of claim 3, wherein a distance between the base and the connecting portion is less than a distance between the base and the pressing part.

7. The wireless charging device of claim 1, wherein the heat dissipation unit is made of graphite.

8. The wireless charging device of claim 7, wherein an insulation layer is formed on an inner surface of the heat dissipation unit.

9. The wireless charging device of claim 8, wherein the insulation layer is made of polyethylene terephthalate.

10. The wireless charging device of claim 1, wherein the heat dissipation unit is made of copper.

11. The wireless charging device of claim 1, wherein the charging panel is located between the base and the connecting portion, and the portable electronic device is located between the charging panel and the pressing portion.