| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum cleaner which prevents the degradation of efficiency and the occurrence of noise caused by the turbulence of exhaust air into a cover part from a motor-driven blower. SOLUTION: The motor-driven blower 11 having a plurality of exhaust ports 35 is disposed inside a main body case, and a cover part 12 covering the motor-driven blower 11 is disposed inside the main body case. By the cover part 12, the plurality of exhaust ports 35 of the motor-driven blower 11 are gathered to circulating air paths 71 of exhaust ducts fewer than the exhaust ports 35 and exhaust is made possible. The decline of the efficiency and the generation of the noise due to the turbulence of the exhaust air into the cover part 12 from the motor-driven blower 11 are prevented. COPYRIGHT: (C)2008,JPO&INPIT
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