VACUUM CLEANER WITH AUTOMATIC EMPTYING DUST APPARATUS

摘要

PURPOSE: A vacuum cleaner with an automatic emptying dust apparatus is provided to prevent passage resistance of a filter member and secondary contamination of a dust guide portion by equipping the automatic emptying dust apparatus. CONSTITUTION: A vacuum cleaner(1) comprises a suction force generating portion; a dust collecting portion; a changing passage valve assembly; a foreign material collecting case(30). The suction force generating portion sucks in air having foreign materials through a first suction port(11) into a body of the vacuum cleaner and sucks in reverse circuiting air through a second suction port(7). The dust collecting portion has a filter member(13) and a dust collecting case(14). The filter member filters foreign material of air sucked from the first suction port. The changing passage valve assembly exhausts air filtered on the dust collecting portion through the suction force generating portion and circulates exhausted air to the dust collecting portion as well as changes a passage(17) of air to suck in air again into the second suction port. The foreign material collecting case has a collecting filter member(35) to filter foreign materials of reverse circulated air by combining first and second suction ports. Thereby, fine dust of the filter member and foreign materials of the dust collecting portion are emptied automatically by using suction force of the suction force generating portion.