| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust collector capable of accurately detecting clogging of a filter regardless of an operation mode of the dust collector in the dust collector for detecting clogging of the filter of the dust collector to automatically perform dust removal. SOLUTION: In the dust collector, a threshold value of a clogging pressure determined from an operation mode of the dust collector, an internal pressure of a filter device, an action of a suction device, a power source frequency of the suction device and a power source voltage of the suction device; and an internal pressure of the filter device immediately before the suction device is stopped. Clogging of the filter is detected and when the filter is in the clogging state, the dust-removal means is operated. COPYRIGHT: (C)2007,JPO&INPIT
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