Title:
電動機組立体
Document Type and Number:
Japanese Patent JP7173856
Kind Code:
B2
Abstract:
To provide an electric motor assembly that can automatically set a frequency jump band.SOLUTION: An electric motor assembly 1 includes an electric motor 2, an inverter 3 that supplies AC power to the electric motor 2, a vibration sensor 60 fixed to the inverter 3, and a frequency jump control unit 63 that determines a frequency jump band on the basis of an output value of the vibration sensor 60. The inverter 3 is fixed to the electric motor 2. The frequency jump band is within a range of a command frequency to the inverter 3 corresponding to the output value of the vibration sensor 60 which is larger than a threshold value. The frequency jump control unit 63 stops the operation of the electric motor 2 when the output value of the sensor 60 exceeds the threshold value in a case in which the command frequency to the inverter 3 is within the frequency jump band and the inverter 3 outputs AC power having a frequency corresponding to a lower limit value or an upper limit value of the frequency jump band.SELECTED DRAWING: Figure 1
Inventors:
Takahide Ozawa
Kazuma Nishimura
Yousuke Harada
Ryoko Ikegami
Naoki Katayama
Kazuma Nishimura
Yousuke Harada
Ryoko Ikegami
Naoki Katayama
Application Number:
JP2018237428A
Publication Date:
November 16, 2022
Filing Date:
December 19, 2018
Export Citation:
Assignee:
Ebara Corporation
International Classes:
H02P23/04; H02K11/20; H02K11/33; H02M7/48
Domestic Patent References:
| JP6113592A | ||||
| JP2014211143A | ||||
| JP2018129905A |
Foreign References:
| WO2010007975A1 |
Attorney, Agent or Firm:
Tetsuya Hirosawa
Yutaro Watanabe
Yutaro Watanabe