Portable charging device

• US 9,153,985 B1
• Filed: 11/07/2014
• Issued: 10/06/2015
• Est. Priority Date: 09/30/2014
• Status: Active Grant

• Current Assignee: Mophie Incorporated (Evercel, Inc.)
• Original Assignee: Mophie Incorporated (Evercel, Inc.)
• Inventors: Park, Soo Youn, Gjvik, Erik John, Lee, Sai Kong Frank
• Primary Examiner(s): Rodas, Richard Isla
• Assistant Examiner(s): PELTON, NATHANIEL R
• Application Number:
  US14/536,505
• Time in Patent Office: 333 Days
• Field of Search: 320/107, 320/114, 320/103, 320/111
• US Class Current: 1/1
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: H05K 7/2039 characterised by the heat transfer by conduction from the heat generating element to a dissipating body arrangements for increasing/decreasing heat-transfer, e.g. fins details, F28F13/00

Abstract

A charging device for charging an electronic device can include a main body having a recess. First and second electrical cables can be disposed in the recess when in retracted positions, and the first and second electrical cables can extend outside of the main body when in extended positions. The charging device can have a cover that is movable between a closed position, which can cover the recess, and an open position, which can expose the recess to enable the electrical cables to move between the retracted and extended positions. The charging device can include a battery. Electrical power can be received via the second electrical cable for charging the battery. Electrical power can be output from the battery via the first electrical cable to charge an electronic device.

Claims

1. A charging device for charging an electronic device, the charging device comprising:

a main body comprising at least one recess;

a battery disposed inside the main body;

a first electrical cable movable between a retracted position and an extended position, wherein the first electrical cable is disposed in the at least one recess when in the retracted position, wherein the first electrical cable extends outside the main body when in the extended position, wherein the first electrical cable comprises a first electrical connector configured to couple to a corresponding interface on an electronic device, and wherein the charging device is configured to charge the electronic device through the first electrical cable using electrical power from the battery;

a second electrical cable movable between a retracted position and an extended position, wherein the second electrical cable is disposed in the at least one recess when in the retracted position, wherein the second electrical cable extends outside the main body when in the extended position, wherein the second electrical cable comprises a second electrical connector configured to couple to a power source, and wherein the charging device is configured to charge the battery using electrical power received through the second electrical cable; and

a cover that is movable relative to the main body, wherein the cover is movable between a closed position and an open position, wherein the cover in the closed positioned covers at least a portion of the recess to impede the first and second electrical cables from moving between the retracted positions and the extended positions, and wherein the cover in the open position is configured to expose the recess such that the first and second electrical cables are movable between the retracted positions and the extended positions;

wherein the first electrical cable can selectively be positioned on to of the second electrical cable when in the retracted positions, and wherein the second electrical cable can selectively be positioned on to of the first electrical cable when in the retracted positions.

2. The charging device of claim 1, wherein the main body comprises a thermally conductive outer wall, wherein one or more electrical components inside the main body are thermally coupled to the thermally conductive outer wall to dissipate heat from the one or more electrical components through the thermally conductive outer wall.

3. The charging device of claim 2, wherein a first side of a thermal interface material contacts the battery and a second side of the thermal interface material contacts the thermally conductive outer wall.

4. The charging device of claim 3, wherein the thermal interface material comprises thermal grease, thermal paste, or a thermal pad.

5. The charging device of claim 2, wherein a first thermal interface material directly thermally couples the battery to the thermally conductive outer wall.

6. The charging device of claim 5, wherein a second thermal interface material directly thermally couples one or more electrical components on a printed circuit board to the thermally conductive outer wall.

7. The charging device of claim 2, wherein the one or more electrical components are coupled to the thermally conductive outer wall by a thermal interface material without a heat spreader disposed between the one or more electrical components and the thermally conductive outer wall.

8. The charging device of claim 1, wherein both the first electrical cable and the second electrical cable are disposed in the same recess in the main body when in the retracted positions.

9. The charging device of claim 1, wherein one of the first and second electrical cables is disposed to rest on top of the other of the first and second electrical cables when in the retracted positions.

10. The charging device of claim 1, wherein the cover pivots between the closed position and the open position.

11. The charging device of claim 1, wherein a portion of the first electrical cable is exposed when the cover is in the closed position, and wherein a portion of the second electrical cable is exposed when the cover is in the closed position.

12. The charging device of claim 1, wherein the charging device is configured to pass electrical power received through the second electrical cable to the first electrical cable to charge the electronic device without using the battery.

13. The charging device of claim 1, the charging device is configured to transfer data between the electronic device coupled to the first electrical cable and an external electronic device coupled to the second electrical cable.

20. The charging device of claim 2, wherein the cover is disposed on a first side of the main body, and wherein the thermally conductive outer wall is on a second side of the main body opposite the cover.

14. A charging device comprising:

a main body housing with at least one recessed portion;

a battery disposed within the main body housing;

a cover hingedly coupled to the main body housing and configured to move between an open position and a closed position; and

a plurality of electrical cables each configured to move between an extended position and a retracted position, wherein the plurality of electrical cables are configured to fit within the at least one recessed portion of the main body housing when in the retracted positions, and wherein a first electrical cable comprises a first electrical connector and a second electrical cable comprises a second electrical connector;

wherein the plurality of electrical cables are disposed in the same recess, wherein the first electrical cable can selectively be positioned on top of the second electrical cable when in the retracted positions, and wherein the second electrical cable can selectively be positioned on top of the first electrical cable when in the retracted positions.

15. The charging device of claim 14, wherein the cover is further configured so that in the closed position the cover overlaps with at least a portion of the at least one recessed portion of the main body housing.

16. The charging device of claim 14, further comprising an electrical port on the main body, wherein the electrical port is configured to receive an electrical connector and to output electrical power from the battery to the electrical connector.

17. The charging device of claim 14, further comprising:

one or more electrical components; and

a thermally conductive outer wall configured to dissipate heat from the one or more electrical components.

18. The charging device of claim 14, further comprising:

a thermally conductive outer wall configured to couple to the battery and to dissipate heat from the battery.

19. The charging device of claim 14, wherein the plurality of electrical cables pivot between the extended position and the retracted position.