Title:
回転子、かご形誘導電動機及びドライブシステム
Document Type and Number:
Japanese Patent JP7419205
Kind Code:
B2
Abstract:
This rotor has a rotor conductor, wherein the rotor conductor has: a first region in which the width of the rotor conductor in the circumferential direction decreases toward the inner circumferential side of the rotor conductor; and a second region which continues into the inner circumferential side of the first region and in which the width of the rotor conductor in the circumferential direction increases toward the inner circumferential side of the rotor conductor. When the distance from the outer circumferential side edge of the rotor conductor to the inner circumferential side edge of the rotor conductor is denoted by h0, the distance from the outer circumferential side edge of the rotor conductor to the outer circumferential side edge of the first region is denoted by h1, the distance from the outer circumferential side edge of the rotor conductor to the inner circumferential side edge of the second region is denoted by h2, and a constant N is a constant calculated on the basis of the depth of eddy current penetrating into the rotor conductor at a rotational speed at which a torque drop occurs during start-up, the rotor conductor satisfies the relationship of h1/h0 < N < h2/h0.
Inventors:
Kazuo Nishihama
Atsushi Abe
Takahiro Takeda
Keno Mitsuishi
Atsushi Abe
Takahiro Takeda
Keno Mitsuishi
Application Number:
JP2020161508A
Publication Date:
January 22, 2024
Filing Date:
September 25, 2020
Export Citation:
Assignee:
Hitachi Industrial Equipment Systems Co., Ltd.
International Classes:
H02K17/16; H02K1/22
Foreign References:
| WO2019244240A1 | ||||
| WO2019244238A1 | ||||
| WO2015001601A1 |
Attorney, Agent or Firm:
Seiryo Patent Attorneys Corporation