发明名称 |
LINEAR MOTOR |
摘要 |
<p>The present invention provides an improved design of linear motor as well as an improved control strategy. The design allows for a shorted stator, where the armature magnets are controlled to reciprocate to a greater maximum displacement than for a equivalent conventional linear motor. The control strategy is such that a minimum of external sensors are required. The linear motor is driven at its resonant frequency ensuring optionally efficient operation. A determination of the maximum current is made based on a relationship with the resonant frequency and the evaporating temperature/pressure of the vapour entering the compressor. The current is then limited to control the maximum displacement to avoid damage.</p> |
申请公布号 |
KR20050089891(A) |
申请公布日期 |
2005.09.08 |
申请号 |
KR20057015203 |
申请日期 |
2005.08.18 |
申请人 |
FISHER & PAYKEL APPLIANCES LIMITED |
发明人 |
DUNCAN GERALD DAVID;BOYD JOHN HENRY |
分类号 |
F04B49/06;F04B35/04;F04B43/04;F25D11/00;H02K33/16;H02K33/18;H02K41/03;H02P6/00;H02P25/02;H02P25/06;(IPC1-7):H02K33/02;H02K33/00 |
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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