| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust circulating vacuum cleaner in which circulating air can be cooled compactly at low cost. <P>SOLUTION: The vacuum cleaner includes a suction air channel 14 that communicates to a negative pressure side of an electric blower 9, an exhaust air channel 13 that communicates a positive pressure side of the electric blower 9 to a suction port body 6, a heat conductor 16 that allows the passage of exhaust from the exhaust air channel 13 internally, and a jetting means 19 that jets a part of the exhaust from the exhaust air channel 13 to the outside. The vacuum cleaner jets the exhaust from the jetting means 19 as inducing outside air in a heat conductor 16 direction, so that the need of a cooling fan is eliminated and air of exhaust circulation can be cooled compactly at low cost. <P>COPYRIGHT: (C)2013,JPO&INPIT |
