Cordless charging apparatus

• US 9,667,077 B2
• Filed: 11/06/2013
• Issued: 05/30/2017
• Est. Priority Date: 11/12/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ko, Kil-Soo, Lee, Jeong-Seok, Park, Se-Ho, Kim, Ki-Hyun
• Primary Examiner(s): Parihar, Suchin
• Application Number:
  US14/073,367
• Publication Number:
  US 20140132211A1
• Time in Patent Office: 1,301 Days
• Field of Search: 320108
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence

Abstract

A cordless charging apparatus is provided. The cordless charging apparatus includes a charging pad, an electronic device including a charging module which is disposed on the charging pad and is electrically conducted so as to cordlessly charge a battery with electric power, and a dispersing member which is disposed in the charging pad and disperses heat generated in the charging module to the charging pad.

Claims

1. A wireless power charging system, comprising:

a charging pad configured to wirelessly provide power to an electronic device; and

the electronic device configured to be placed on a dispersing member disposed on the charging pad to receive the wirelessly provided power from the charging pad, and charge a battery of the electronic device with the wirelessly provided power from the charging pad,

wherein the dispersing member disperses heat generated from the electronic device, toward the charging pad,

wherein the electronic device includes a charging module which charges the battery with the wirelessly provided power received from the charging pad, and

wherein the dispersing member has heat conductivity, is electrically insulated, and includes a thermally conductive plastic.

2. The wireless power charging system as claimed in claim 1, wherein the charging pad has a charging region on which the electronic device is seated, and the dispersing member is provided on the charging region so as to disperse the heat which is generated from the charging module.

3. The wireless power charging system as claimed in claim 1, wherein the thermally conductive plastic receives and disperses the heat generated from the charging module.

4. The wireless power charging system as claimed in claim 1, wherein the thermally conductive plastic is attached to an external surface of the charging region by at least one of a heat bonding, an adhesive member and a hook coupling.

5. The wireless power charging system as claimed in claim 2, wherein the battery is disposed on a surface of the charging module, and a cover is provided to cover the charging module and the battery, and wherein the heat generated from the charging module is dispersed toward the dispersing member through the cover.

6. The wireless power charging system as claimed in claim 5, wherein the charging module includes a cordless signal receiving resonance unit which performs cordless charging;

and a driving circuit unit which is connected to a side of the cordless signal receiving resonance unit, and wherein the heat generated from the driving circuit unit is dispersed toward the dispersing member through the cover opposite to the driving circuit unit when the electronic device is placed on the charging pad to charge the battery.

7. A wireless power charging system, comprising:

a charging pad on which an electronic device is placed, the electronic device being associated with the charging pad to wirelessly charge a battery in the electronic device; and

a dispersing member which disperses heatgenerated from the electronic device, toward the charging pad,

wherein the dispersing member disperses heat generated by a charging module included in the electronic device, the charging module charging the battery with the charging pad, and

wherein the dispersing member has heat conductivity, is electrically insulated, and includes a thermally conductive plastic.