TURBO BLOWER DEVICE, CAPABLE OF MAXIMIZING COOLING EFFICIENCY AND REDUCING FLOW LOSS

摘要

PURPOSE: A turbo blower device is provided to cool a driving unit and a control unit which are connected to each other with external air flowing in through one air passage, thereby simplifying a structure with an inflow of external air for cooling.;CONSTITUTION: A turbo blower device comprises a driving unit(200) and a control unit. The driving unit comprises an outer housing, an inner housing, a main impeller, a second cooling air passage, and a cooling impeller. An inlet and an outlet are formed in the outer circumference of the outer housing. The inner housing is formed in the inside of the outer housing and comprises a stator, a rotor, and a rotary shaft. The main impeller is comprised in one end portion of the rotary shaft, thereby pressing and blowing air flowing into the inlet. The second cooling air passage is formed in the outer housing to induce external air to the inside of the rotary shaft. The cooling impeller makes the external air flowing through second cooling air passage forcibly flow in the inside of the rotary shaft. The cooling impeller is arranged in a side opposite to the inlet around the main impeller.;COPYRIGHT KIPO 2013