Wireless charger assembly mountable on different desks

• US 9,660,481 B2
• Filed: 12/29/2014
• Issued: 05/23/2017
• Est. Priority Date: 01/02/2014
• Status: Active Grant

• Current Assignee: Foxconn Interconnect Technology Limited (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Foxconn Interconnect Technology Limited (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Chen, Cheng-Pang, Chen, Jia-Hong, Chen, Chi-Ming, Cheng, Yung-Chang
• Primary Examiner(s): Dunn, Drew A
• Assistant Examiner(s): McDaniel, Tynese
• Application Number:
  US14/583,824
• Publication Number:
  US 20150188357A1
• Time in Patent Office: 876 Days
• CPC Class Codes: H01F 27/02 Casings
• CPC Class Codes: H01F 27/306 Fastening or mounting coils or windings on core, casing or other support
• 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

Abstract

A wireless charger assembly is used for transferring power to an electronic device through inductive charging. The wireless charger assembly includes a bottom case releasably mounted to an exterior flatbed, a transmitter coil, and a top case. The transmitter coil transmits power to a receiver coil of the electronic device through inductive charging. The top case has a working platform mounted around the working surface of the flatbed, a neck portion extending downwardly from the working platform, and a slot defined by the working platform and the neck portion. The neck portion releasably retained to the closed loop wall.

Claims

1. A wireless charger assembly used for transferring power to an electronic device and mounted to an exterior flatbed, the flatbed including a working surface, a non-working surface opposite the working surface, and a through-hole extending through the working surface and the non-working surface, the wireless charger assembly comprising:

a bottom case including a bottom floor releasably retained to the nonworking surface, a closed loop wall projecting upwardly from the bottom floor to insert in the through-hole, and a cavity defined by the bottom floor and the closed loop wall;

a top case having a working platform mounted around the working surface of the flatbed, a neck portion extending downwardly from the working platform, and a slot defined by the working platform and the neck portion, the neck portion releasably retained to the closed loop wall;

a printed circuit board (PCB) disposed between the top case and the bottom case and being close to the top case; and

a transmitter coil mounted on a top face of the PCB close to the working platform of the top case, the transmitter coil transmitting power to a receiver coil of the electronic device through inductive charging;

a coil spring located between the PCB and the bottom case, said coil spring having a bottom portion retained to the bottom floor and a top portion abutting against the PCB.

2. The wireless charger assembly claimed in claim 1, further including a sleeve added between the bottom case and the top case to increase distance of the working platform and the non-working surface;

said sleeve having a top section engaging with the neck portion of the top case and a bottom section engaging with the closed loop wall of the bottom case.

3. The wireless charger assembly claimed in claim 1, further including a plurality of sleeves mounted one to another along a top-to-bottom direction to increase distance of the working platform and the nonworking surface, the bottom one of the sleeves being mounted to the bottom case and the top one of the sleeves being assembled with the top case.

4. The wireless charger assembly claimed in claim 3, further including a light guiding component with a plurality of guiding holes releasably retained to the top one of the sleeves, and the PCB has a plurality of light emitting diodes (LEDs) mounted thereon and aligned with corresponding guiding holes.

5. The wireless charger assembly claimed in claim 1, further including a light guiding component with a plurality of guiding holes releasably retained to the closed loop wall of the bottom case, and wherein said PCB has a plurality of light emitting diodes (LEDs) mounted thereon and aligned with corresponding guiding holes.

6. The wireless charger assembly claimed in claim 5, wherein said working platform has a transparent circle located above the guiding holes.

7. The wireless charger assembly claimed in claim 6, further including a rubber gasket arranged between the working platform of the top case and the working surface of the flatbed.

8. The wireless charger assembly claimed in claim 5, further including a transparent tray disposed between the top case and the light guiding component.

9. A wireless charger assembly comprising:

a flatbed defining a through hole extending through opposite upper and bottom surfaces thereof in a vertical direction;

a holding bracket including a fixing portion secured to the bottom surface;

a bottom case detachably attached to the holding bracket and defining a bottom floor essentially flush with the bottom surface, and a loop wall extending upwardly from the bottom floor into the through hole;

a top case connected to the bottom case and defining a working platform essentially complying with the upper surface, said top case cooperating with the bottom case to commonly form a receiving cavity therebetween in the vertical direction;

a transmitting coil and a printed circuit board associated with each other and commonly moveably disposed within the receiving cavity, and

a spring disposed in the receiving cavity and constantly urging at least said transmitting coil upwardly close to the working platform;

wherein

the transmitting coil is fixed relative to the printed circuit board, and the spring upward presses a bottom side of the printed circuit board so as to urge both the printed circuit board and the transmitting coil upward toward the top case.

10. The wireless charger assembly as claimed in claim 9, wherein a distance between the working platform of the top case and the bottom floor of the bottom case in the vertical direction is adjustable to compromise different heights among the different flatbeds.

11. The wireless charger assembly as claimed in claim 9, wherein said top case is connected to the bottom case via at least one sleeve upwardly connected to said top case and downwardly connected to the bottom case, respectively.

12. The wireless charger assembly as claimed in claim 11, wherein said sleeve forms external threads on an upper portion thereof and either a latching arm or a retaining aperture is formed in a lower portion thereof for respectively retaining to the top case and the bottom case.

13. The wireless charger assembly as claimed in claim 9, further including a light guiding component disposed in the receiving cavity, wherein said light guiding component guides and expose light onto the upper surface.

14. A wireless charger assembly for use within a through hole of a flatbed having opposite upper surface and bottom surface in a vertical direction, comprising:

a holding bracket including a fixing portion adapted to be secured to the bottom surface;

a bottom case detachably attached to the holding bracket and defining a bottom floor adapted to essentially flush with the bottom surface, and a loop wall extending upwardly from the bottom floor and adapted to extend into the through hole;

a top case connected to the bottom case and defining a working platform adapted to essentially flush with the upper surface, said top case cooperating with the bottom case to commonly form a receiving cavity therebetween in the vertical direction;

a transmitting coil and a printed circuit board associated with each other and commonly moveably disposed within the receiving cavity; and

a spring disposed in the receiving cavity and constantly urging at least said transmitting coil upwardly close to the working platform;

wherein

the transmitting coil is fixed relative to the printed circuit board, and the spring upward presses a bottom side of the printed circuit board so as to urge both the printed circuit board and the transmitting coil upward toward the top case.

15. The wireless charger assembly as claimed in claim 14, wherein a distance between the working platform of the top case and the bottom floor of the bottom case in the vertical direction is adjustable for compromising different heights among the different flatbeds.

16. The wireless charger assembly as claimed in claim 14, wherein said top case is connected to the bottom case via at least one sleeve upwardly connected to said top case and downwardly connected to the bottom case, respectively.

17. The wireless charger assembly as claimed in claim 16, wherein said sleeve forms external threads on an upper portion thereof and either a latching arm or a retaining aperture is formed in a lower portion thereof for respectively retaining to the top case and the bottom case.

18. The wireless charger assembly as claimed in claim 14, further including a light guiding component disposed in the receiving cavity, wherein said light guiding component guides and expose light onto the upper surface.