Temperature management in a wireless energy transfer system
First Claim
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1. A method for operating an inductive energy transfer system that includes a transmitter device and a receiver device, the method comprising:
- during energy transfer;
determining, by the receiver device, whether a temperature of the transmitter device is equal to or greater than a first temperature threshold;
if the temperature is equal to or greater than the first temperature threshold, sending a first signal from the receiver device to the transmitter device to disable a transmitter coil of the transmitter device;
triggering, by the transmitter device, a turn-on timer after receiving the first signal;
turning on the transmitter coil after the turn-on timer elapses;
determining, by the receiver device, whether the temperature of the transmitter device is equal to or greater than a second temperature threshold; and
if the temperature is equal to or greater than the second temperature threshold, sending a second signal to the transmitter device to disable the transmitter coil of the transmitter device.
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Abstract
Various techniques for temperature management during inductive energy transfer are disclosed. A transmitter device and/or a receiver device can be turned off during energy transfer based on the temperature of the transmitter device and/or of the receiver device.
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Citations
20 Claims
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1. A method for operating an inductive energy transfer system that includes a transmitter device and a receiver device, the method comprising:
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during energy transfer; determining, by the receiver device, whether a temperature of the transmitter device is equal to or greater than a first temperature threshold; if the temperature is equal to or greater than the first temperature threshold, sending a first signal from the receiver device to the transmitter device to disable a transmitter coil of the transmitter device; triggering, by the transmitter device, a turn-on timer after receiving the first signal; turning on the transmitter coil after the turn-on timer elapses; determining, by the receiver device, whether the temperature of the transmitter device is equal to or greater than a second temperature threshold; and if the temperature is equal to or greater than the second temperature threshold, sending a second signal to the transmitter device to disable the transmitter coil of the transmitter device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for operating an inductive energy transfer system that includes a transmitter device and a receiver device, the method comprising:
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disabling a the transmitter device based on a communication signal received from the receiver device in response to the receiver device determining that a temperature of the transmitter device is equal to or greater than a temperature threshold; transmitting, by the transmitter device, a ping to the receiver device; and turning on the transmitter device based on receiving a response from the receiver device. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. An inductive energy transfer system comprising:
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a transmitter device comprising; a first temperature sensor configured to determine a temperature of the transmitter; and a first network communication interface; and a receiver device comprising; a second network communication interface configured to communicate with the first network communication interface of the transmitter device; and a first processing device, wherein; during energy transfer, the first network communication interface is configured to transmit first temperature data obtained from the first temperature sensor to the second network communication interface; the first processing device is configured to; determine whether the transmitter device should be disabled based on the first temperature data; and cause the transmitter device to be disabled in response to determining that the temperature of the transmitter device is equal to or greater than a temperature threshold. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification