Wireless charging device

• US 9,325,199 B2
• Filed: 03/20/2014
• Issued: 04/26/2016
• Est. Priority Date: 12/31/2013
• Status: Expired due to Fees

• Current Assignee: Lien Chang Electronic Enterprise Co Ltd
• Original Assignee: Lien Chang Electronic Enterprise Co Ltd
• Inventors: Lee, Hsueh-Han
• Primary Examiner(s): Diao, M'Baye
• Application Number:
  US14/220,216
• Publication Number:
  US 20150188353A1
• Time in Patent Office: 768 Days
• Field of Search: 320/108, 320/107, 455/41.1, 455/572, 455/573, 455/575.1
• US Class Current: 1/1
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235

Abstract

A wireless charging device includes a wireless transmitting module and a wireless receiving module. The wireless transmitting module includes a first outer casing and a wireless transmitting unit disposed inside the first outer casing for generating electromagnetic fields. The wireless receiving module includes a second outer casing, a wireless receiving unit disposed inside the second outer casing for wirelessly receiving the electromagnetic fields generated by the wireless transmitting unit, and at least one electrical connector exposed outside the second outer casing and electrically contacting a portable electronic device. The first outer casing of the wireless transmitting module has at least one first receiving space for receiving the second outer casing and at least one second receiving space for receiving the at least one electrical connector.

Claims

1. A wireless charging device, comprising:

a wireless transmitting module including a first outer casing, a power storage unit disposed inside the first outer casing, a first control circuit unit disposed inside the first outer casing and electrically connected to the power storage unit, and a wireless transmitting unit disposed inside the first outer casing and electrically connected to the first control circuit unit for generating electromagnetic fields; and

a wireless receiving module including a second outer casing, a wireless receiving unit disposed inside the second outer casing for wirelessly receiving the electromagnetic fields generated by the wireless transmitting unit, a second control circuit unit disposed inside the second outer casing and electrically connected to the wireless receiving unit, and at least one electrical connector exposed outside the second outer casing and electrically connected between the second control circuit unit and a portable electronic device;

wherein the first outer casing of the wireless transmitting module has at least one first receiving space corresponding to the second outer casing and at least one second receiving space corresponding to the at least one electrical connector, and the wireless receiving module includes a support unit connected to the second outer casing for supporting the at least one electrical connector.

2. The wireless charging device of claim 1, wherein the first outer casing has a placing platform for carrying the wireless receiving module and a non-slip structure opposite to the placing platform, and both the at least one first receiving space and the at least one second receiving space are formed on the same lateral side of the first outer casing, wherein the wireless transmitting module includes a transformer disposed inside the first outer casing and electrically connected to the power storage unit, a power input unit electrically connected to the transformer, and at least one power output unit electrically connected to the power storage unit.

3. The wireless charging device of claim 1, wherein the second outer casing has a first opening and a second opening, and the second outer casing is received inside the at least one first receiving space of the first outer casing through the at least one first opening, and the at least one electrical connector is received inside the at least one second receiving space of the first outer casing through the at least one second opening.

4. The wireless charging device of claim 1, wherein the support unit has a support body connected to the second outer casing for fixing the height of the at least one electrical connector relative to the second outer casing and a pull ring connected to the support body and opposite to the at least one electrical connector.

5. The wireless charging device of claim 1, wherein the support unit has a support body connected to the second outer casing, an inbuilt height adjusting mechanism disposed inside the support body for adjusting the height of the at least one electrical connector relative to the second outer casing, and a pull ring connected to the support body and opposite to the at least one electrical connector, and the inbuilt height adjusting mechanism includes an elastic element for abutting against an embedded portion of the at least one electrical connector and a lifting and lowering shaft connected to the embedded portion of the at least one electrical connector for adjusting the compression deformation of the elastic element.

6. The wireless charging device of claim 1, wherein the first outer casing has a first retaining structure disposed inside the at least one first receiving space, the second outer casing has a second retaining structure corresponding to the first retaining structure, and the first outer casing and the at least one electrical connector are respectively retained inside the at least one first receiving space and the at least one second receiving space by matching the first retaining structure and the second retaining structure.

7. A wireless charging device, comprising:

a wireless transmitting module including a first outer casing and a wireless transmitting unit disposed inside the first outer casing for generating electromagnetic fields; and

a wireless receiving module including a second outer casing, a wireless receiving unit disposed inside the second outer casing for wirelessly receiving the electromagnetic fields generated by the wireless transmitting unit, and at least one electrical connector exposed outside the second outer casing and electrically contacting a portable electronic device;

wherein the first outer casing of the wireless transmitting module has at least one first receiving space for receiving the second outer casing and at least one second receiving space for receiving the at least one electrical connector;

wherein the second outer casing has a first opening and a second opening, the second outer casing is received inside the at least one first receiving space of the first outer casing through the at least one first opening, and the at least one electrical connector is received inside the at least one second receiving space of the first outer casing through the at least one second opening.

8. The wireless charging device of claim 7, wherein the wireless receiving module includes a support unit connected to the second outer casing for supporting the at least one electrical connector, and the support unit has a support body connected to the second outer casing, an inbuilt height adjusting mechanism disposed inside the support body for adjusting the height of the at least one electrical connector relative to the second outer casing, and a pull ring connected to the support body and opposite to the at least one electrical connector, wherein the inbuilt height adjusting mechanism includes an elastic element for abutting against an embedded portion of the at least one electrical connector and a lifting and lowering shaft connected to the embedded portion of the at least one electrical connector for adjusting the compression deformation of the elastic element.

9. A wireless charging device, comprising:

a wireless transmitting module including a first outer casing, a power storage unit disposed inside the first outer casing, a first control circuit unit disposed inside the first outer casing and electrically connected to the power storage unit, and a wireless transmitting unit disposed inside the first outer casing and electrically connected to the first control circuit unit for generating electromagnetic fields; and

a wireless receiving module including a second outer casing, a wireless receiving unit disposed inside the second outer casing for wirelessly receiving the electromagnetic fields generated by the wireless transmitting unit, a second control circuit unit disposed inside the second outer casing and electrically connected to the wireless receiving unit, and at least one electrical connector exposed outside the second outer casing and electrically connected between the second control circuit unit and a portable electronic device;

wherein the wireless receiving module includes a support unit connected to the second outer casing for supporting the at least one electrical connector, the wireless receiving module is totally received inside the first outer casing of the wireless transmitting module except an exposed lateral side of the support unit, and the exposed lateral side of the support unit is substantially flushed with outer surface of the first outer casing.