Impeller and centrifugal fan with same
AssigneeDelta Electronics, Inc.
InventorsWei-I Ling, Chih-Chung Chen, Meng-Yu Chen
Life of this patent
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Abstract
A centrifugal fan includes a frame and an impeller. The impeller is disposed within the frame. The impeller includes a hub, a first blade group and a second blade group. The hub includes a center part, an inclined part and a connection part. The first blade group is connected with the connection part of the hub. The second blade group is disposed on the inclined part of the hub. There is a first distance between the second blade group and the first blade group. There is a second distance between the second blade group and the center part of the hub.
Claims16
An impeller, comprising:
- a hub comprising a center part, an inclined part and a connection part;
- a first blade group connected with the connection part of the hub;
- and
- a second blade group disposed on the inclined part of the hub, wherein the second blade group is integrally formed with the hub, the second blade group is protruded upwardly from the inclined part of the hub, there is a first distance between the second blade group and the first blade group, and there is a second distance between the second blade group and the center part of the hub.
An impeller, comprising:
- a hub comprising a center part, an inclined part and a connection part;
- a first blade group connected with the connection part of the hub, wherein the first blade group comprises plural forwardly-inclined blades, and
- a second blade group disposed on the inclined part of the hub, wherein the second blade group comprises plural backwardly-inclined blades, there is a first distance between the second blade group and the first blade group, and there is a second distance between the second blade group and the center part of the hub.
A centrifugal fan, comprising:
- a frame;
- and
- an impeller disposed within the frame, wherein the impeller comprises:
- a hub comprising a center part, an inclined part and a connection part;
- a first blade group connected with the connection part of the hub;
- and
- a second blade group disposed on the inclined part of the hub, wherein the second blade group is integrally formed with the hub, and the second blade group is protruded upwardly from the inclined part of the hub, there is a first distance between the second blade group and the first blade group, and there is a second distance between the second blade group and the center part of the hub.
A centrifugal fan, comprising:
- a frame, and
- an impeller disposed within the frame, wherein the impeller comprises:
- a hub comprising a center part, an inclined part and a connection part,
- a first blade group connected with the connection part of the hub, wherein the first blade group comprises plural forwardly-inclined blades;
- and
- a second blade group disposed on the inclined part of the hub, wherein there is a first distance between the second blade group and the first blade group, there is a second distance between the second blade group and the center part of the hub, the second blade group comprises plural backwardly-inclined blades, wherein a blade density of the plural forwardly-inclined blades of the first blade group is larger than a blade density of the plural backwardly-inclined blade of the second blade group.
Dependencies are inferred from the claim text.