Title:
ELECTRIC MOTOR AND AIR CONDITIONER EQUIPPED WITH ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/166122
Kind Code:
A1
Abstract:
Provided is an electric motor equipped with a mechanism for detecting overcurrent of an inverter circuit. The electric motor is provided with a rotor, a stator, and a substrate. The substrate is provided with: power transistors constituting an inverter circuit for switching the direction of current flowing through a winding of the stator; a first resistor provided between the power transistors and a ground terminal and used for detecting overcurrent of the inverter circuit; a second resistor provided between the power transistors and the first resistor and used for detecting the current flowing through the winding of the stator; and a constant voltage diode connected in parallel with the first resistor.
Inventors:
OYA JUNICHIRO (JP)
YAMAMOTO MINEO (JP)
ISHII HIROYUKI (JP)
URABE YUTO (JP)
YAMAMOTO MINEO (JP)
ISHII HIROYUKI (JP)
URABE YUTO (JP)
Application Number:
PCT/JP2020/006531
Publication Date:
August 26, 2021
Filing Date:
February 19, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/06; H02P29/024
Foreign References:
| JP2006271048A | 2006-10-05 | |||
| JP2008122226A | 2008-05-29 | |||
| JP2018201311A | 2018-12-20 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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