Wireless power transmitter with removable magnetic connector panel for vehicular use
AssigneeNuCurrent, Inc.
InventorsJason Luzinski, Rob Diebold, Md. Nazmul Alam
Life of this patent
Estimating the term…
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 power transmitter for wireless power transfer at an operating frequency selected from a range of about 87 kilohertz (kHz) to about 360 kHz, the power transmitter comprising:
- a control and communications unit;
- a vehicular power input regulator configured for receiving input power and filtering the input power to a filtered input power, the vehicular power input regulator including:
- an input protection circuit, and
- a DC/DC voltage converter;
- an inverter circuit receiving the filtered input power and converting the filtered input power to a power signal;
- at least one coil configured to transmit the power signal to a power receiver, the at least one coil formed of wound Litz wire and including at least one layer, the at least one coil having at least a top face;
- a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the at least one coil;
- a housing 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;
- and
- a removable front plate 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 the power receiver is proximate to the removable front plate.
A base station for a wireless power transfer system at an operating frequency selected from a range of about 87 kilohertz (kHz) to about 360 kHz, the base station comprising:
- an interface surface;
- a control and communications unit;
- a vehicular power input regulator configured for receiving input power and filtering the input power to a filtered input power, the vehicular power input regulator including
- an input protection circuit, and
- a DC/DC voltage converter;
- an inverter circuit receiving the filtered input power and converting the filtered input power to a power signal;
- at least one coil configured to transmit the power signal to a power receiver, the at least one coil formed of wound Litz wire and including at least one layer, the at least one coil having at least a top face;
- a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the at least one coil;
- a housing 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;
- a removable front plate 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 the power receiver is proximate to the removable front plate.
Dependencies are inferred from the claim text.