发明名称 |
Electrical vibration type compressor |
摘要 |
An electrical vibration type compressor comprising a drive coil vibratably supported in a mechanical vibration system, a piston driven by the drive coil, at least one main semiconductor element with a control electrode which performs the switching control of a drive current to the drive coil, and a detecting means consisting of at least one detecting semiconductor element with a control electrode detecting the vibration of the drive coil to control the conduction and cutoff of the main semiconductor element with a control electrode and at least one timeconstant circuit; whereby the feedback transformer which has so far been used in a device of this type to supply a feedback current to the main semiconductor element with a control electrode is eliminated, and the switching operation is properly performed at the top and bottom dead centers of the piston.
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申请公布号 |
US4027211(A) |
申请公布日期 |
1977.05.31 |
申请号 |
US19750564135 |
申请日期 |
1975.04.01 |
申请人 |
SAWAFUJI ELECTRIC COMPANY, LTD. |
发明人 |
OMURA, MORIKAZU;OKUDA, YUKIO;KAINUMA, HIROYUKI |
分类号 |
H02K33/18;(IPC1-7):H02K33/18 |
主分类号 |
H02K33/18 |
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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