Electronic lockset with multi-source energy harvesting circuit
First Claim
1. An electronic lockset for use with a radio frequency (“
- RF”
) transmitter configured to transmit at one or more predetermined frequencies, the electronic locket comprising;
a locking device moveable between a locked position and an unlocked position;
one or more energy consumption devices configured to actuate the locking device between the locked position and the unlocked position;
at least one rechargeable battery configured to provide power to the one or more energy consumption devices;
a RF energy harvesting circuit configured to be electrically coupled with the rechargeable battery, wherein the RF energy harvesting circuit is configured to convert RF energy to a direct current (“
DC”
) power source for recharging the rechargeable battery;
wherein the RF energy harvesting circuit is operably associated with a selector configured to tune a RF receiver to a selected frequency from a plurality of predetermined frequencies, wherein the selector is configured to change the selected frequency by cycling through the plurality of predetermined frequencies; and
wherein the selector comprises a manually-actuated switch configured to change the selected frequency by user actuation of the switch.
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Accused Products
Abstract
An electronic lockset with a radio frequency harvesting circuit. In one embodiment, the electronic lockset includes a mechanical locking portion movable between a locked position and an unlocked position. One or more energy consumption devices are provided that actuate the mechanical locking portion between the locked position and the unlocked position. A rechargeable battery provides electrical power to the energy consumption devices. A radio frequency (“RF”) transmitter and RF energy harvesting circuit are used to wirelessly recharge the battery. Typically, the RF transmitter is configured to transmit at a predetermined frequency. The RF energy harvesting circuit is tuned to the predetermined frequency and is electrically coupled with the rechargeable battery to recharge the battery.
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Citations
19 Claims
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1. An electronic lockset for use with a radio frequency (“
- RF”
) transmitter configured to transmit at one or more predetermined frequencies, the electronic locket comprising;a locking device moveable between a locked position and an unlocked position; one or more energy consumption devices configured to actuate the locking device between the locked position and the unlocked position; at least one rechargeable battery configured to provide power to the one or more energy consumption devices; a RF energy harvesting circuit configured to be electrically coupled with the rechargeable battery, wherein the RF energy harvesting circuit is configured to convert RF energy to a direct current (“
DC”
) power source for recharging the rechargeable battery;wherein the RF energy harvesting circuit is operably associated with a selector configured to tune a RF receiver to a selected frequency from a plurality of predetermined frequencies, wherein the selector is configured to change the selected frequency by cycling through the plurality of predetermined frequencies; and wherein the selector comprises a manually-actuated switch configured to change the selected frequency by user actuation of the switch. - View Dependent Claims (2, 3, 4, 19)
- RF”
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5. An electronic lockset comprising:
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a mechanical locking portion moveable between a locked position and an unlocked position; one or more energy consumption devices configured to actuate the mechanical locking portion between the locked position and the unlocked position; at least one rechargeable battery configured to provide electrical power to the energy consumption devices; a radio frequency (“
RF”
) transmitter configured to plug into an AC power outlet, wherein the RF transmitter is configured to transmit at a user-selectable predetermined frequency;an RF energy harvesting circuit configured to be electrically coupled with the rechargeable battery, wherein the RF energy harvesting circuit is configured to convert RF energy received from the RF transmitter to a direct current (“
DC”
) power source for recharging the rechargeable battery; andwherein the energy harvesting circuit includes an RF receiver tunable to the predetermined frequency of the RF transmitter by a user-selectable switch. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A battery holder for use with an electronic lockset, the battery holder comprising:
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a body including a cavity for receiving one or more batteries, wherein the body is dimensioned to be detachably received by an electronic lockset to supply electrical power thereto; and a radio frequency (“
RF”
) energy harvesting circuit including a RF receiver carried by the body, wherein the RF energy harvesting circuit is configured to recharge one or more batteries received in the body, wherein the RF energy harvesting circuit is operably associated with a selector configured to tune the RF receiver to a selected frequency and the selector comprises a manually-actuated switch configured to change the selected frequency by user actuation of the switch. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification