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Patent Searching and Data


Title:
ELECTRIC MOTOR
Document Type and Number:
Japanese Patent JP2017041970
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce an area to arrange three magnetic sensors in an on-vehicle electric motor.SOLUTION: A control circuit 63 starts a rotor 50 by controlling an inverter circuit 62 on the basis of the detection values of Hall sensors 61a, 61b, 61c. After the start of the rotor 50, the control circuit 63 controls the revolution speed of the rotor 50 on the basis of the detection value of the Hall sensor 61a. A sensor pin 81 is arranged inside a slot 48u between a normal winding part 46 and a reverse winding part 47 of a U-phase winding 49a. A sensor pin 82 is arranged inside a slot 48v between a normal winding part 46 and a reverse winding part 47 of a V-phase winding 49b. A sensor pin 83 is positioned on one side in an axial direction with respect to a normal winding part 46 of a W-phase winding 49c. Each one of the sensor pins 81, 82 is positioned at the first position.SELECTED DRAWING: Figure 1

Inventors:
IWANAGA FUTOSHI
Application Number:
JP2015162119A
Publication Date:
February 23, 2017
Filing Date:
August 19, 2015
Export Citation:
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Assignee:
DENSO CORP
ASMO CO LTD
International Classes:
H02K29/08; H02K11/21; H02K11/30
Domestic Patent References:
JP2013158069A2013-08-15
JP2012189376A2012-10-04
JP2005312216A2005-11-04
JP2014014243A2014-01-23
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office