POWER CONTROL DEVICE, ELECTRIC MOTOR INCLUDING POWER CONTROL DEVICE, AND AIR-CONDITIONING APPARATUS INCLUDING ELECTRIC MOTOR
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United States of America Patent
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Issued Date -
May 4, 2023
app pub date -
Jun 16, 2020
filing date -
Jun 16, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a power control device that drives an electric motor including a rotor into which a rotary shaft is inserted and a stator, the stator being provided on an outer peripheral side of the rotor, the power control device including: a substrate having a through hole and disposed to face the rotor and the stator, the rotary shaft being caused to pass through the through hole; a power semiconductor module mounted on the substrate and including a drive circuit; and a microcomputer mounted on the substrate, and configured to control power supplied to the electric motor, wherein the substrate is integrally formed with the stator by using a molded resin, and a first part having a lower thermal conductivity than the molded resin is disposed on the substrate at a position between the power semiconductor module and the microcomputer.
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