Electric motor braking using thermoelectric cooling
First Claim
Patent Images
1. An electric motor controller comprising:
- controller electronics configured to control an electric motor;
a braking circuit configured to receive an input braking current from the controller electronics, the input braking current generated during braking of the electric motor; and
a thermoelectric cooler in thermal communication with the controller electronics and configured to receive a braking current from the braking circuit based on the input braking current, and the thermoelectric cooler operable to provide cooling to the controller electronics in response to receiving the braking current.
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Abstract
An electric motor controller includes controller electronics configured to control an electric motor. The electric motor controller also includes a thermoelectric cooler in thermal communication with the controller electronics. The thermoelectric cooler is configured to receive a braking current associated with braking of the electric motor and provide cooling to the controller electronics.
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Citations
18 Claims
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1. An electric motor controller comprising:
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controller electronics configured to control an electric motor; a braking circuit configured to receive an input braking current from the controller electronics, the input braking current generated during braking of the electric motor; and a thermoelectric cooler in thermal communication with the controller electronics and configured to receive a braking current from the braking circuit based on the input braking current, and the thermoelectric cooler operable to provide cooling to the controller electronics in response to receiving the braking current. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An electric motor control system comprising:
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an electric motor; and an electric motor controller electrically coupled to the electric motor, the electric motor controller comprising; controller electronics configured to control the electric motor; a thermoelectric cooler in thermal communication with the controller electronics; and a braking circuit configured to receive an input braking current from the controller electronics, the input braking current generated during braking of the electric motor, and the braking circuit provides a braking current to the thermoelectric cooler based on the input braking current. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of thermoelectric cooling in an electric motor controller, the method comprising:
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receiving an input braking current at a braking circuit from controller electronics responsive to braking of an electric motor, the electric motor controlled by the controller electronics; providing a braking current from the braking circuit to a thermoelectric cooler based on the input braking current; and applying the braking current to the thermoelectric cooler in thermal communication with the controller electronics, thereby cooling the controller electronics. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification