VENTILATION REFLUX TYPE VACUUM CLEANER

摘要

PURPOSE: A ventilation reflux type vacuum cleaner is provided to lengthen the life of a motor and to prevent the motor from being deteriorated by more efficiently radiating heat from the motor. CONSTITUTION: A body(310) of a ventilation reflux type vacuum cleaner contains a motor(312) in which a fan(311) is combined with a shaft(312a), a dust collecting bag(313) and a dividing part(314) between the fan and motor to prevent the flow of air. The motor is a biaxial motor and the other shaft(312b) of the motor is combined with a belt(315) to rotate a rotating brush(323) of a suction body(320). A first space(316) divided by the dividing part has a reflux passage(340) to guide air to the suction body without passing through the motor and a second space(317) has a cooling passage(350) to be communicated with indoor air. The cooling passage contains a passage guide(353) to form a suction cooling passage(351) and a discharge cooling passage(352). A blower fan(360) of the vacuum cleaner body is combined with a shaft(312b). An injection port(324) is connected to the reflux passage at the bottom of the suction body. A suction port(321) is connected to one end of a suction passage(322) and the dust collecting bag is connected to the other end of the suction passage.