WASHING MACHINE AND VIBRATION CONTROL DEVICE

• Main Authors: FU YING SHEN, LIN BING, MAKAINO YUKI, YOSHINO TOMOYA, NAGAYAMA TOMOYA, KUROSAWA MARI
• Format: Patent
• Language: English; Japanese
• Published: 16.02.2023
• Subjects: BLASTING; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; HEATING; LAUNDERING; LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILEARTICLES; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; TEXTILES; THERMAL INSULATION IN GENERAL; TREATMENT OF TEXTILES OR THE LIKE; WEAPONS

To provide a washing machine that can increase vibration control performance even in a state where the magnitude of current is restricted.SOLUTION: A washing machine comprises: an outer tub; a washing tub provided within the outer tub; a vibration-control support mechanism including a linear actuator that supports the outer tub in a vibration control manner; a control device that controls the linear actuator; a current limiter that restricts an amplitude value of a current command computed within the control device; and current detection means for detecting current flowing in the linear actuator. In a case where the amplitude value of the current command exceeds a predetermined value set in advance, the current limiter restricts the amplitude value of the current command to be less than or equal to the predetermined value, and maintains or changes a phase angle of the current command with respect to a displacement or speed of the linear actuator.SELECTED DRAWING: Figure 8 【課題】電流の大きさが制限された状態においても、制振性能を高めることができる洗濯機を提供する。【解決手段】外槽と、外槽内に設けられた洗濯槽、外槽を防振支持するリニアアクチュエータを備えた防振支持機構と、リニアアクチュエータを制御する制御装置と、前記制御装置内部で演算した電流指令の振幅値を制限する電流リミッタと、前記リニアアクチュエータに流れる電流を検知する電流検出手段と、を備えた洗濯機において、電流リミッタは、電流指令の振幅値があらかじめ設定した所定値を超える場合には、電流指令の振幅値を所定値以下に制限するとともに、電流指令のリニアアクチュエータの変位又は速度に対する位相角を維持または変更する。【選択図】図８