The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2002
Filed:
Jan. 18, 2002
Katsuhiko Yamamoto, Kamo, JP;
Abstract
A fan motor with an improved inhaling structure so as to enhance ventilation efficiency and performance, as well as cooling performance. An outer housing member has a respective face opposite to a drive unit An intake hole of an arbitrary diameter is provided in a first face of the outer housing member , while another intake hole of an arbitrary diameter is provided in a second face thereof. Both intake holes and however, are formed to have a larger diameter than the diameter of a rotor defined by the peripheral side face thereof, thus enabling air to be drawn in directly to the respective faces of the fan blades , without being hindered by the rotor Moreover, the intake holes and are formed to define a certain portion in which the air is drawn in from one side of a fan only. Due to the presence of such portion which is free from a counter flow of air, the airflow toward an exhaust hole is first facilitated, and then accompanied by subsequent flows of air such that a sufficient amount of air is drawn in from the respective surfaces of the remaining surface.