An air compressor includes: the gas storage tank part, part of the compressed air; compressed air generating part, the compressed air is generated to provide part of the compressed air tank; motor, compressed air generating part driving the motor; and the pressure switch mechanism, the pressure switch mechanism is provided with a pressure sensor in a part of the tank and, in accordance with the pressure sensor output to control the motor to open or closed, which is characterized in that: the time when the tank pressure change rate is greater than a predetermined value, the motor when the pressure drop is not to wait for the pressure drops to a pressure switch off point, but immediately restart.
【技术实现步骤摘要】
【技术保护点】
一种压力开关机构,包括:压力容器;压力传感器,该压力传感器检测压力容器内的压力;负载;开关单元,该开关单元通断负载的供电线;和控制单元,该控制单元依照压力传感器的信号控制开关单元,其中,当压力 容器的压力为第一值时,控制单元控制开关单元开启;当压力容器的压力在大于第一值的第二值时,控制单元控制开关单元关闭;和当压力容器的压力变化率大于或等于预定值时,控制单元控制开关单元在第一值和第二值之间的第三值处开启。
【技术特征摘要】
...
【专利技术属性】
技术研发人员:饭村良雄,折笠博明,砂押光广,瀬川和宏,
申请(专利权)人:日立工机株式会社,
类型:发明
国别省市:JP[日本]
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。