发明名称 |
DRIVER OF COMPRESSOR AND REFRIGERATOR |
摘要 |
An instantaneous current and instantaneous voltage of a three-phase coil (10) of a brushless DC motor (6) are detected, and the internal condition of a compressor (1) is predicted from these detection values. The prediction about the internal condition of the compressor (1) is made in such a way that motor driving torque which is a parameter of a motor model is identified and poor lubrication, liquid compression or the like is predicted from this identified motor driving torque. This enables it to make, in real time, a failure forecast, failure diagnosis etc. on the compressor (1). <IMAGE> |
申请公布号 |
EP1541869(A1) |
申请公布日期 |
2005.06.15 |
申请号 |
EP20030771319 |
申请日期 |
2003.07.24 |
申请人 |
DAIKIN INDUSTRIES, LTD. |
发明人 |
HIKAWA, TAKESHI;MAEDA, TOSHIYUKI;KASAHARA, SHINICHI;YAMAGUCHI, TAKAHIRO;IZUMI, SHIGENOBU;KOIZUMI, KIYOSHI;KITA, MASANOBU |
分类号 |
F04B49/06;F25B49/02;F04B49/02;F04B49/10;F24F11/02;F25B1/04;F25B13/00;F25B49/00;H02P6/12;H02P6/16;H02P21/00;H02P27/04 |
主分类号 |
F04B49/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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