| 摘要 |
PURPOSE: An air flowing passage of a vacuum cleaner is provided to enhance a performance of the vacuum cleaner by improving an air flowing passage system incorporated to vacuum cleaner and increasing an amount and a speed of an absorbing air, while increasing an absorbing force of the vacuum cleaner. CONSTITUTION: An air flowing passage of a vacuum cleaner comprises an ejector suction passage(62), an ejector(60), an ejector nozzle(61), a second suction passage(65), an ejector chamber(63), a second suction nozzle(64), a first suction nozzle(71) and a first suction passage(72). The ejector suction passage(62) for reusing a part amount of an air exhausted from a motor is connected to an edge end of a motor case. The ejector(60) for collecting the air passed the ejector suction passage is connected to the other end of the ejector suction passage. The ejector nozzle(61) for injecting in the air in a high speed and a low pressure is provided with the one end of the ejector. The second suction passage(65) for absorbing the injected air and the air in the ejector and returning to the motor is provided to have a constant intervals with the ejector nozzle. The other end of the second passage(65) is connected to one end of a waste storage bucket(41). The ejector chamber(63) for maintaining an inside thereof in the low pressure includes the ejector nozzle. The second suction nozzle(64) for absorbing an air of an outside in a high speed is formed at a position of the ejector chamber(63). The first suction nozzle(71) for absorbing the air of the outside in the high speed by using directly a suction force of a motor is formed at a lower portion of the vacuum cleaner. The first suction passage(72) is connected to one end of the first suction passage and the other end thereof is connected to the one of the waste storage bucket.
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