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US 2003/0142476 A1Published application
Centrifugal blower unit having swirl chamber, and electronic apparatus equipped with centrifugal blower unit
AssigneeKabushiki Kaisha Toshiba
InventorsKentaro Tomioka, Kenichi Ishikawa, Katsumi Hisano, Kei Matsuoka, Hideyuki Toma
Life of this patent
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Abstract
An electronic apparatus is provided with a housing containing a heat generating component, and a blower unit contained in the housing and used to cool the heat generating component. The blower unit includes an impeller, and a casing containing the impeller. The casing has suction ports, a chamber located around the impeller and a discharge port located at the downstream end of the chamber. The chamber has a depth gradually increased radially away from the impeller.
Claims12
A blower unit comprising:
- an impeller;
- and
- a casing containing the impeller, the casing having suction ports, a chamber located around the impeller and used to flow air, and a discharge port located at a downstream end of the chamber, the chamber having a depth gradually increased radially away from the impeller.
A blower unit comprising:
- a rotary impeller;
- and
- a casing containing the impeller, the casing having suction ports which introduce air into a center of rotation of the impeller, a swirl chamber located around the impeller and used to gather air discharged from an outer periphery of the impeller, and a discharge port located at a downstream end of the swirl chamber, the swirl chamber having an inner periphery defined by an outer periphery of the impeller, and an outer periphery, remote from the outer periphery of the impeller, L2>L1 being satisfied where L2 and L1 represent lengths of the outer and inner peripheries of the swirl chamber, respectively.
An electronic apparatus comprising:
- a housing containing a heat generating component;
- and
- a blower unit contained in the housing and used to cool the heat generating component, the blower unit including:
- an impeller;
- and
- a casing containing the impeller, the casing having suction ports, a chamber located around the impeller and used to flow air, and a discharge port located at a downstream end of the chamber, the chamber having a depth gradually increased radially away from the impeller.
3 more elements
Dependencies are inferred from the claim text.