초록 ▼

A vacuum cleaner with an indicator for indicating when the dust bag for the vacuum cleaner is full. The indicator includes a turbine provided in a suction pipe, so that the turbine causes an amount of electric power to be generated that corresponds to the amount of negative pressure within the sucti

A vacuum cleaner with an indicator for indicating when the dust bag for the vacuum cleaner is full. The indicator includes a turbine provided in a suction pipe, so that the turbine causes an amount of electric power to be generated that corresponds to the amount of negative pressure within the suction pipe. As the dust bag begins to fill, the negative pressure in the suction pipe decreases, and the amount of electric power caused by the turbine also decreases. When the amount of electric power caused by the turbine falls below a predetermined value, the indicator display indicates that the bag is full. If the indicator is employed with a dust sensor, the indicator display can be used to show the amount of detected dust until the bag is full and the operation of the sensor is stopped to allow the display to indicate that the bag is full.

대표청구항 ▼

[ What is claimed is:] [1.] A vacuum cleaner comprising;a vacuum cleaner body,a suction pipe connected to the vacuum cleaner body, for guiding dust and air to the vacuum cleaner body,a fan motor provided within the vacuum cleaner body for generating a suction force,a dust bag for collecting dust suc

[ What is claimed is:] [1.] A vacuum cleaner comprising;a vacuum cleaner body,a suction pipe connected to the vacuum cleaner body, for guiding dust and air to the vacuum cleaner body,a fan motor provided within the vacuum cleaner body for generating a suction force,a dust bag for collecting dust suctioned by the suction force,a generator, the generator being positioned along the suction pipe such that the generator is driven by air suctioned through the suction pipe to generate an amount of electric power corresponding to an amount of negative pressure within the suction pipe,a dust sensor for detecting dust suctioned by the suction force, andcollected dust quantity indirect detection and display means for producing a comparison result signal in response to the amount of electric power generated by the generator being less than a predetermined amount of electric power that stops operation of dust sensor, and for indicating that the dust bag is full in response to the comparison result signal and displaying detection results from the dust sensor when the comparison result signal is not produced.