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Title:
ELECTRIC MOTOR AND AIR CONDITIONER PROVIDED WITH ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/049361
Kind Code:
A1
Abstract:
This electric motor is provided with a stator, a rotor, and a magnetic sensor. The stator has an iron core and a magnetic flux coil. The rotor has a rotating shaft and a cylindrical rotor magnet. The magnetic sensor has a sensor section that outputs an electric signal on the basis of a magnetic flux applied thereto. The rotor magnet is disposed facing the iron core of the stator. The rotor magnet has a main magnet section, and a sensor magnet section, which is integrally formed with the main magnet section, and which has an outer diameter that is smaller than that of the main magnet section. The magnetic sensor is disposed on the side of the sensor magnet section. The outer peripheral end of the sensor magnet section is positioned at a position further than the center of the magnetic sensor from the rotating shaft. In the magnetic sensor, the center of the sensor section and the center of the magnetic sensor do not match, and the center of the sensor section is positioned at a position closer to the sensor magnet section than the center of the magnetic sensor.

Inventors:
OYA, Junichiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
YAMAMOTO, Mineo (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
ISHII, Hiroyuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
URABE, Yuto (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
SHIMOKAWA, Takaya (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/032657
Publication Date:
March 14, 2019
Filing Date:
September 11, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02K29/08; H02K1/27; H02K11/215
Foreign References:
JPH11299207A1999-10-29
JP2014103721A2014-06-05
JPS55181492U1980-12-26
JP2002078309A2002-03-15
JPS60257754A1985-12-19
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (East 8F, TORANOMON TWIN BLDG. 10-1 Toranomon 2-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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