Heat-dissipating device
AssigneeDelta Electronics, Inc.
InventorsWen-Shi Huang, Kuo-Cheng Lin, Chen-Chang Lin
Life of this patent
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Abstract
A heat-dissipating device is provided for generating primary airflow to dissipate heat generated by external heat sources as well as secondary airflow to dissipate heat generated from the interior of the heat-dissipating device. The heat-dissipating device includes a primary fan and a secondary fan coupled with a shaft of the primary fan. The secondary fan is rotated along the shaft to generate the secondary airflow and dissipate heat generated by the heat-dissipating device per se. Thus, the operation temperature of the heat-dissipating device can be lowered to increase its life span.
Claims14
A heat-dissipating device adapted to be used with a heat source, comprising:
- a frame including a bearing tube for mounting a bearing therein, wherein the bearing tube has a slot formed on a periphery thereof,
- a first fan including a hub, a plurality of blades mounted around the hub, and a shaft coupled to the hub and supported by the bearing for generating a main airflow to dissipate heat generated by the heat source;
- and
- a second fan disposed in the bearing tube and secured on the shaft of the first fan to rotate along with the shaft for dissipating heat generated from the heat-dissipating device.
A heat-dissipating device comprising:
- a frame including a bearing tube for receiving at least one bearing therein, wherein the bearing tube has a plurality of slots formed on a periphery thereof;
- a primary fan including a hub, a plurality of blades arranged around the hub, and a shaft coupled to the hub and supported by the bearing;
- and
- a secondary fan disposed in the bearing tube and secure on the shaft to rotate along the shaft;
- wherein the primary and secondary fans generate airflow to respectively dissipate heat generated from exterior and interior of the heat-dissipating device.
Dependencies are inferred from the claim text.