Centrifugal fan and fan frame thereof
AssigneeDelta Electronics, Inc.
InventorsTsung-Yu LEI, Ching-Hua WU
Life of this patent
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Abstract
A fan frame of a centrifugal fan comprises a housing and an inlet structure. The housing includes an opening. The inlet structure is disposed at the opening and includes a top portion and an edge portion. The top portion is disposed around the opening and includes a plurality of first chamfering angles, at least one of the chamfering angles is different from the others. The edge portion extends from the top portion to the inside of the housing through the opening and includes a plurality of second chamfering angles. A centrifugal fan including the fan frame is also disclosed.
Claims19
A fan frame of a centrifugal fan, comprising:
- a housing including an opening;
- and
- an inlet structure disposed at the opening and including:
- a top portion disposed around the opening and including a plurality of first chamfering angles, at least one of the chamfering angles is different from the others;
- and
- an edge portion extending from the top portion to the inside of the housing through the opening and including a plurality of second chamfering angles or a plurality of slopes.
A fan frame of a centrifugal fan, comprising:
- a housing including an opening;
- and
- an inlet structure disposed at the opening and including:
- a top portion disposed around the opening and including a plurality of first chamfering angles, at least one of the chamfering angles is different from the others;
- and
- an edge portion extending from the top portion to the inside of the housing through the opening and including at least a second chamfering angle and at least a slope.
A fan frame of a centrifugal fan, comprising:
- a housing including an opening;
- and
- an inlet structure disposed at the opening and including:
- a top portion disposed around the opening and including a plurality of first chamfering angles, at least one of the chamfering angles is different from the others;
- and
- an edge portion extending from the top portion to the inside of the housing through the opening and including a plurality of extension surfaces.
Dependencies are inferred from the claim text.