Title:
モータとその制御装置
Document Type and Number:
Japanese Patent JP7406739
Kind Code:
B2
Abstract:
The torque of a permanent magnet motor is increased. There is provided a permanent magnet type motor with concentrated windings, in which each stator pole has a circumferential pitch of 185° or more in an electric angle. In this motor, the circumferential distribution of the magnetic flux density in an air gap surface of the rotor poles PR of the permanent magnet type has an approximately trapezoidal shape. Moreover, the induced voltages of the concentrated windings of the stator have an approximately trapezoidal waveform. An approximately trapezoidal-shaped waveform current is energized in the concentrated winding of each phase. Even if the magnetic flux density is close to the maximum flux density of the soft magnetic member of the stator, large slot cross-sectional areas of the stator can be secured, thus outputting a large torque.
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Inventors:
Masayuki Nashiki
Hiroyuki Nashiki
Hiroyuki Nashiki
Application Number:
JP2019194138A
Publication Date:
December 28, 2023
Filing Date:
October 25, 2019
Export Citation:
Assignee:
Masayuki Nashiki
International Classes:
H02P25/024; H02K1/14; H02K1/22; H02K21/16; H02P6/10
Domestic Patent References:
| JP2008104290A | ||||
| JP54001810A | ||||
| JP2008172983A | ||||
| JP58143486U | ||||
| JP2017099232A | ||||
| JP2015231253A | ||||
| JP2016119769A | ||||
| JP63133895A | ||||
| JP2019134654A | ||||
| JP2018117398A |
Foreign References:
| WO2008050637A1 | ||||
| US20080315691 | ||||
| CN102832767A | ||||
| WO2017109968A1 | ||||
| WO2019008722A1 | ||||
| WO2019176234A1 |
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