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US 8,297,914 B2Granted
Fan with impellers coupled in series and fan frame thereof
AssigneeDelta Electronics, Inc.
InventorsShun-Chen Chang, Yi-Ching Chiu
Life of this patent
Estimating the term…
Abstract
A fan includes a fan frame, a front impeller and a rear impeller. The fan frame has a frame body and a plurality of connecting elements. The front impeller has a first bushing disposed at the central portion of the frame body. Two ends of each connecting element are respectively connected with the frame body and the first bushing. The rear impeller has a second bushing partially telescoped into the first bushing.
Claims20
A fan frame comprising:
- a first bushing;
- a second bushing partially telescoped into and directly in contact with an extending part of the first bushing;
- a frame body for accommodating the first bushing therein;
- a connecting element connected with the frame body and the first bushing, wherein the extending part passes beyond both ends of the connecting element;
- and
- a glue disposed at the junction of the extending part and the second bushing to strengthen the bonding of the first and second bushing, wherein the glue is applied to corresponding recesses of the inner surface of the extending part and the outer surface of the second bushing.
3 more elements
A fan comprising:
- a fan frame having a connecting element;
- a first bushing disposed in the fan frame, wherein the frame body and the first bushing are connected via the connecting element;
- a second bushing partially telescoped into and directly in contact with an extending part of the first bushing;
- a first impeller coupled to the first bushing;
- a second impeller coupled to the second bushing, wherein the extending part passes beyond both ends of the connecting element;
- and
- a glue disposed at the junction of the extending part and the second bushing to strengthen the bonding of the first and second bushing, wherein the glue is applied to corresponding recesses of the inner surface of the extending part and the outer surface of the second bushing.
4 more elements
Dependencies are inferred from the claim text.