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1. 发明授权

US5931008A Protecting device for car air conditioner 失效
标题翻译：汽车空调保护装置
公开(公告)号：US5931008A
公开(公告)日：1999-08-03
申请号：US050002
申请日：1998-03-30
申请人： Yasukazu Mizutani , Mitsuhiro Urano , Hideki Koseki , Sun Biao
发明人： Yasukazu Mizutani , Mitsuhiro Urano , Hideki Koseki , Sun Biao
IPC分类号： B60H1/32 , F04B49/10 , F04C28/06 , F04C28/08 , F04C29/00
CPC分类号： F04C28/08 , B60H1/3225 , F04B49/103 , F04C28/06 , F04C29/005
摘要： A protecting device for a car air conditioner includes a timer for timing a period of the rise in the level of a rotation signal delivered from a rotation sensor for detecting a rotational speed of a compressor with the signal being distinguished from noise. On the basis of the obtained period, a judgment is made as to whether rotation of the compressor is in an abnormal state. An electromagnetic clutch between the compressor and a car engine is controlled on the basis of the judgment. The protecting device is mounted on a housing of the compressor with the rotation sensor so that wiring is executed only in an engine room. The protecting device includes a state holding device for memorizing the abnormal state of the rotation of the compressor. The air conditioner can restart on condition that a conscious operation is performed to reset the state holding device.
摘要翻译：一种用于汽车空调的保护装置，包括一个定时器，用于定时从用于检测压缩机的旋转速度的旋转传感器传送的旋转信号的上升期间，该信号与噪声区分开来。基于所获得的周期，判断压缩机的旋转是否处于异常状态。基于判断来控制压缩机和汽车发动机之间的电磁离合器。保护装置安装在具有旋转传感器的压缩机的壳体上，使得仅在发动机室中进行接线。保护装置包括用于存储压缩机的旋转异常状态的状态保持装置。在执行有意识的操作以重置状态保持装置的情况下，空调可以重新启动。

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