TEMPERATURE PROTECTION DEVICE AND CONTROL DEVICE
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United States of America Patent
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Issued Date -
Apr 4, 2024
app pub date -
Jan 20, 2022
filing date -
Feb 1, 2021
priority date (Note) -
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Abstract
A temperature protection device includes: a storage unit for storing a temperature protection line defined on the basis of a time during which a current is continuously supplied from an electric motor driver device to an electric motor and the allowable temperatures of the electric motor and electric motor driver device; a temperature computing unit for computing the temperature of the electric motor or electric motor driver device by obtaining the current value of the current supplied from the electric motor driver device to the electric motor; and a determination unit for determining whether the temperature exceeds a temperature protection line.
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