Battery wireless charging system
First Claim
1. A base unit for wirelessly charging an electrical energy storage device, the base unit comprising:
- a) a housing comprising a housing upper surface and a housing lower surface, wherein a tray portion of the housing is configured to contain at least one electrical energy storage device that is intended to be charged, the tray portion of the housing comprising a tray platform that resides in a first plane and is recessed inwardly from the housing upper surface towards the housing lower surface;
b) an electrical energy supply unit positioned inside the housing and being electrically connectable to an external electrical power supply;
c) a main circuit board positioned inside the housing and being electrically powered by the electrical energy supply unit; and
d) an antenna circuit board positioned inside the housing and being electrically connected to the main circuit board, wherein the antenna circuit board supports a wireless energy transmitting antenna comprising a resonant inductor coil that resides in a second plane spaced from the first plane of the tray platform, the resonant inductor coil being configured to wirelessly transmit electrical energy to charge an electrical energy storage device supported on the tray platform,e) wherein the first plane of the tray platform and the second plane of the resonant inductor coil are parallel to and aligned with each other.
3 Assignments
0 Petitions
Accused Products
Abstract
A system for wirelessly charging an electrical energy storage device such as an electrochemical cell or battery pack is described. The system comprises a transmitting base unit having a charging tray that is capable of wirelessly transmitting electrical power received from an external electrical energy source. In addition, the system comprises an electrical energy capture assembly that is electrically incorporatable with an energy storage device. The energy capture assembly comprises a receiving coil that is electrically connected to various sub-circuits that condition and modify the wirelessly received electrical energy so that it re-charges the energy storage device. The system is primarily designed to be used with electrical power that is wirelessly transmitted by near field magnetic induction. The circuitry of the system is designed to accommodate for fluctuations in magnitude of wirelessly transmitted electrical power. In addition, system is designed to optimally utilize wireless near field magnetic induction electrical power.
32 Citations
21 Claims
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1. A base unit for wirelessly charging an electrical energy storage device, the base unit comprising:
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a) a housing comprising a housing upper surface and a housing lower surface, wherein a tray portion of the housing is configured to contain at least one electrical energy storage device that is intended to be charged, the tray portion of the housing comprising a tray platform that resides in a first plane and is recessed inwardly from the housing upper surface towards the housing lower surface; b) an electrical energy supply unit positioned inside the housing and being electrically connectable to an external electrical power supply; c) a main circuit board positioned inside the housing and being electrically powered by the electrical energy supply unit; and d) an antenna circuit board positioned inside the housing and being electrically connected to the main circuit board, wherein the antenna circuit board supports a wireless energy transmitting antenna comprising a resonant inductor coil that resides in a second plane spaced from the first plane of the tray platform, the resonant inductor coil being configured to wirelessly transmit electrical energy to charge an electrical energy storage device supported on the tray platform, e) wherein the first plane of the tray platform and the second plane of the resonant inductor coil are parallel to and aligned with each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A base unit for wirelessly charging an electrical energy storage device, the base unit comprising:
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a) a housing comprising a housing upper surface and a housing lower surface, wherein a tray portion of the housing is configured to contain at least one electrical energy storage device that is intended to be charged, the tray portion of the housing comprising a tray platform residing in a first plane and being recessed inwardly from the housing upper surface towards the housing lower surface, wherein the tray platform comprises a tray platform perimeter residing in the first plane; b) an electrical energy supply unit positioned inside the housing and being electrically connectable to an external electrical power supply; c) a main circuit board positioned inside the housing and being electrically powered by the electrical energy supply unit; and d) an antenna circuit board positioned inside the housing and being electrically connected to the main circuit board, wherein the antenna circuit board supports a wireless energy transmitting antenna comprising a resonant inductor coil residing in a second plane spaced from the first plane of the tray platform, the resonant inductor coil being configured to wirelessly transmit electrical energy to charge an electrical energy storage device supported on the tray platform, e) wherein the first plane of the tray platform and the second plane of the resonant inductor coil are parallel to and aligned with each other, and wherein, with respect to an imaginary projection of the tray platform onto the resonant inductor coil, an outer perimeter of the resonant inductor coil extends laterally outwardly beyond the tray platform perimeter by a distance that ranges from about 1 mm to about 10 mm. - View Dependent Claims (16, 17, 18)
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19. A base unit for wirelessly charging an electrical energy storage device, the base unit comprising:
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a) a housing comprising a housing upper surface and a housing lower surface, wherein a tray portion of the housing is configured to contain at least one electrical energy storage device that is intended to be charged, the tray portion of the housing comprising a tray platform residing in a first plane and being recessed inwardly from the housing upper surface towards the housing lower surface, wherein the tray platform comprises a tray platform perimeter residing in the first plane; b) an electrical energy supply unit positioned inside the housing and being electrically connectable to an external electrical power supply; c) a main circuit board positioned inside the housing and being electrically powered by the electrical energy supply unit; and d) an antenna circuit board positioned inside the housing spaced from the tray platform and being electrically connected to the main circuit board, wherein the antenna circuit board supports a wireless energy transmitting antenna comprising a resonant inductor coil having a spiral shape residing in a second plane, the resonant inductor coil being configured to wirelessly transmit electrical energy to charge an electrical energy storage device supported on the tray platform, e) wherein the first plane of the tray platform and the second plane of the resonant inductor coil are parallel to and aligned with each other, and f) wherein, with respect to an imaginary projection of the tray platform onto the resonant inductor coil, an outer perimeter of the resonant inductor coil extends laterally outwardly beyond the tray platform perimeter. - View Dependent Claims (20, 21)
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Specification