Wireless charging pad, wireless charging device, and electronic device using the same
First Claim
Patent Images
1. A wireless charging pad, comprising:
- a pad case;
a transmit (TX) coil disposed on an inner side of the pad case, and wound to a surface for which a central portion of the TX coil is empty;
a TX coil substrate on which the TX coil is disposed;
a pad magnetic substance disposed on the TX coil substrate at a distance from the central portion of the TX coil; and
a supporting structure supporting the TX coil substrate, wherein the supporting structure is vertically movable relative to the pad case when the pad case is in a substantially horizontal orientation, the supporting structure comprising an elastic structure directly affixing at least one side of the TX coil substrate to a printed circuit board (PCB) below the TX coil substrate,wherein the supporting structure is movable to a direction of an upper case of the pad case when an object forming a magnetic force with the pad magnetic substance approaches on the upper case, wherein the direction is against the direction of gravity, andwherein the supporting structure moves vertically when an external magnetic force is applied causing a plane of the PCB and a plane of the TX coil substrate to physically separate, thereby forming a gap between the plane of the TX coil substrate and the plane of the PCB.
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Accused Products
Abstract
A wireless charging pad, a wireless charging device including the wireless charging pad, and an electronic device using the wireless charging device are provided. The wireless charging pad includes a pad case, a transmit (TX) coil disposed on an inner side of the pad case, and wound to form a surface for which a central portion of the TX coil is empty, a TX coil substrate on which the TX coil is disposed, a pad magnetic substance disposed on the TX coil substrate at a distance from the central portion of the TX coil, and a supporting structure supporting the TX coil substrate, the supporting structure movable relative to the pad case.
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Citations
7 Claims
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1. A wireless charging pad, comprising:
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a pad case; a transmit (TX) coil disposed on an inner side of the pad case, and wound to a surface for which a central portion of the TX coil is empty; a TX coil substrate on which the TX coil is disposed; a pad magnetic substance disposed on the TX coil substrate at a distance from the central portion of the TX coil; and a supporting structure supporting the TX coil substrate, wherein the supporting structure is vertically movable relative to the pad case when the pad case is in a substantially horizontal orientation, the supporting structure comprising an elastic structure directly affixing at least one side of the TX coil substrate to a printed circuit board (PCB) below the TX coil substrate, wherein the supporting structure is movable to a direction of an upper case of the pad case when an object forming a magnetic force with the pad magnetic substance approaches on the upper case, wherein the direction is against the direction of gravity, and wherein the supporting structure moves vertically when an external magnetic force is applied causing a plane of the PCB and a plane of the TX coil substrate to physically separate, thereby forming a gap between the plane of the TX coil substrate and the plane of the PCB. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless charging device, comprising:
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a wireless charging pad including; a pad case, a transmit (TX) coil disposed on an inner side of the pad case and wound to a surface for which a central portion is empty, a TX coil substrate on which the TX coil is disposed, a pad magnetic substance disposed on the TX coil substrate at a distance from the central portion of the TX coil, and a supporting structure supporting the TX coil substrate, wherein the supporting structure is vertically movable relative to the pad case when the pad case is in a substantially horizontal orientation, the supporting structure comprising an elastic structure directly affixing at least one side of the TX coil substrate to a printed circuit board (PCB) below the TX coil substrate; and a charging cable and an adaptor configured to operatively connect with an external power supply to supply power to the wireless charging pad, wherein the supporting structure is movable to a direction of an upper case of the pad case when an object forming a magnetic force with the pad magnetic substance approaches on the upper case, wherein the direction is against the direction of gravity, and wherein the supporting structure moves vertically when an external magnetic force is applied causing a plane of a PCB and a plane of the TX coil substrate to physically separate, thereby forming a gap between the plane of the TX coil substrate and the plane of the PCB.
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Specification