Wireless Power Transmitter With Removable Magnetic Connector Panel For Vehicular Use
AssigneeNuCurrent, Inc.
InventorsJason Luzinski, Rob Diebold, Md Nazmul Alam
Life of this patent
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Abstract
A power transmitter for wireless power transfer includes a control and communications unit, a vehicular power input regulator, an inverter circuit, at least one coil, a shielding, a housing, and a removable front plate. The housing is configured to house, at least in part, one or more of the control and communications unit, the invertor circuit, the at least one coil, the shielding, or combinations thereof. The removable front plate is configured to mechanically connect to the housing, the removable front plate including at least one magnet, the at least one magnet configured to attract a receiver magnet when a power receiver is proximate to the removable front plate.
Claims20
A vehicular wireless power transmission system configured to transmit a wireless power signal within a vehicle, the vehicular wireless power transmission system comprising:
- a power input for receiving input power from a vehicular input power source operable to provide the input power;
- a wireless power transmitter configured to transfer wireless power at an operating frequency selected from a range of about 87 kilohertz (kHz) to about 360 kHz, the wireless power transmitter comprising:
- an interface surface;
- a vehicular power input regulator operable to:
- (i) receive the input power from the vehicular input power source and (ii) filter the input power to a filtered input power, the vehicular power input regulator comprising:
- an input protection circuit;
- and
- a direct current (DC)/DC voltage converter;
- a control and communications unit;
- an inverter circuit operable to (i) receive the filtered input power and (ii) convert the filtered input power to an alternating current (AC) signal;
- a coil operable to (i) receive the AC signal and (ii) based on the received AC signal, generate and transmit the wireless power signal to a wireless power receiver, wherein:
- the coil comprises at least one layer formed of wound Litz wire, and
- the coil comprises at least a coil top face;
- a ferrite shielding comprising a magnetic core and a magnetic backing, wherein:
- the magnetic core is centrally positioned on the magnetic backing, and
- the coil is positioned above the magnetic backing and substantially surrounds the magnetic core;
- a transmitter magnetic connector operable to form a magnetic connection with a receiver magnetic connector of the wireless power receiver when the wireless power receiver is proximate to the interface surface, wherein the magnetic connection is operable to align the wireless power receiver with the wireless power transmitter for wireless power transfer;
- and
- a housing configured to house one or more of the control and communications unit, the inverter circuit, the coil, the ferrite shielding, the transmitter magnetic connector, or combinations thereof.
A wireless power transmitter configured to transfer wireless power at an operating frequency selected from a range of about 87 kilohertz (kHz) to about 360 kHz, the wireless power transmitter comprising:
- an interface surface;
- a vehicular power input regulator operable to:
- (i) receive input power from a power source of a vehicle and (ii) filter the input power to a filtered input power, the vehicular power input regulator comprising:
- an input protection circuit;
- and
- a direct current (DC)/DC voltage converter;
- a control and communications unit;
- an inverter circuit operable to (i) receive the filtered input power and (ii) convert the filtered input power to an alternating current (AC) signal;
- a coil operable to (i) receive the AC signal and (ii) based on the received AC signal, generate and transmit a wireless power signal to a wireless power receiver, wherein:
- the coil comprises at least one layer formed of wound Litz wire, and
- the coil comprises at least a coil top face;
- a ferrite shielding comprising a magnetic core and a magnetic backing, wherein:
- the magnetic core is centrally positioned on the magnetic backing, and
- the coil is positioned above the magnetic backing and substantially surrounds the magnetic core;
- a transmitter magnetic connector operable to form a magnetic connection with a receiver magnetic connector of the wireless power receiver when the wireless power receiver is proximate to the interface surface, wherein the magnetic connection is operable to align the wireless power receiver with the wireless power transmitter for wireless power transfer;
- and
- a housing configured to house one or more of the control and communications unit, the inverter circuit, the coil, the ferrite shielding, the transmitter magnetic connector, or combinations thereof.
Dependencies are inferred from the claim text.