Patent ID: 7690485
Filing Date: 2010-04-06
Classification: A47L

Abstract:
1. A power cord cooling apparatus for a vacuum cleaner that is disposed in a cord reel chamber formed inside a main body of the vacuum cleaner to cool a power cord, the power cord cooling apparatus comprising: at least one first cooling hole in fluid communication with a contaminants collecting chamber, the first cooling hole being disposed in an isolating wall that is configured to partition off the cord reel chamber from the contaminants collecting chamber; a pair of guide grooves formed on a first partition wall, the first partition wall being configured to partition off the cord reel chamber from a suction motor chamber; a cord reel disposed in the cord reel chamber having a hub portion around which the power cord is wound, the hub portion defining a center space and having at least one second cooling hole configured to allow fluid communication between the center space of the cord reel and the cord reel chamber; a cord reel supporting unit disposed in the pair of guide grooves on the first partition wall and extending into the center space of the hub portion of the cord reel to rotatably support the cord reel on the first partition wall; and a duct member disposed adjacent to the cord reel supporting unit in the pair of guide grooves on the first partition wall, the duct member being configured to allow fluid communication between the at least one first cooling hole and the center space of the cord reel; wherein outside air enters the cord reel chamber, contacts the power cord wound around the cord reel as it moves into the center space of the cord reel, and is discharged to the contaminants collecting chamber via the duct member and the at least one first cooling hole.