Heat dissipation apparatus
First Claim
Patent Images
1. A heat dissipation apparatus comprising:
- a centrifugal blower comprising a housing and a rotor comprising a plurality of blades; and
a fin assembly comprising a plurality of fins which are disposed at an air outlet of the centrifugal blower housing, the fins being stacked along a first direction to form the fin assembly, each of the fins extending along a second direction perpendicular to the first direction;
wherein the centrifugal blower housing comprises a first tongue distant from the fin assembly, and a second tongue located between the first tongue and the air outlet of the blower housing, the second tongue having a bulge disposed between said rotor and said fins and oriented to divide air from said blades into two flow streams that flow either towards said fins or towards said first tongue;
an inner end extending from said bulge towards said first tongue, and a tapered outer end extending from said bulge towards said fins and oriented substantially parallel to said second direction such that said inner and outer ends of said second tongue form an angle therebetween.
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Abstract
A heat dissipation apparatus (10) includes a centrifugal blower (12) and a fin assembly (11) having a plurality of fins (111) disposed at an air outlet (129) of the centrifugal blower. The centrifugal blower includes a first tongue (130) distant from the fin assembly, and a second tongue (131) located between the first tongue and the air outlet of the blower. The second tongue has an end (132) substantially parallel to the fins of the fin assembly to guide an airflow smoothly flowing through the fins.
31 Citations
20 Claims
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1. A heat dissipation apparatus comprising:
- a centrifugal blower comprising a housing and a rotor comprising a plurality of blades; and
a fin assembly comprising a plurality of fins which are disposed at an air outlet of the centrifugal blower housing, the fins being stacked along a first direction to form the fin assembly, each of the fins extending along a second direction perpendicular to the first direction;
wherein the centrifugal blower housing comprises a first tongue distant from the fin assembly, and a second tongue located between the first tongue and the air outlet of the blower housing, the second tongue having a bulge disposed between said rotor and said fins and oriented to divide air from said blades into two flow streams that flow either towards said fins or towards said first tongue;
an inner end extending from said bulge towards said first tongue, and a tapered outer end extending from said bulge towards said fins and oriented substantially parallel to said second direction such that said inner and outer ends of said second tongue form an angle therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a centrifugal blower comprising a housing and a rotor comprising a plurality of blades; and
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10. A heat dissipation apparatus comprising:
- a blower comprising a housing and a rotor comprising a plurality of blades; and
a fin assembly comprising a plurality of fins which are disposed at an air outlet of the blower housing;
wherein the blower housing comprises at least two tongues, at least one of the at least two tongues is disposed adjacent to the fin assembly, the at least one tongue dividing the housing into a main chamber containing the rotor, and a sub channel;
the at least one tongue having a bulge disposed between said rotor and said fins and oriented to divide air from said blades into two flow streams that flow either towards said fins or away from said fins towards an entrance of said sub channel, an inner end extending from said bulge away from said fins towards said entrance of said sub channel, and a tapered outer end extending from said bulge towards said fins and oriented substantially parallel to an extension direction of adjacent fins such that said inner and outer ends of said at least one tongue form an angle therebetween;
wherein an airflow generated by the blower flows from the main chamber and from the sub channel through the fin assembly. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
- a blower comprising a housing and a rotor comprising a plurality of blades; and
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19. A heat dissipation apparatus comprising:
- a blower comprising a housing and a rotor comprising a plurality of blades; and
a fin assembly comprising a plurality of fins which are disposed at an air outlet of the blower housing;
said housing having therein a tongue, the tongue having a bulge disposed between said rotor and said fins and oriented to divide air from said blades into two flow streams that flow either towards said fins or away from said fins, an inner end extending from said bulge away from said fins towards an interior of said housing, and a tapered outer end extending from said bulge towards said fins and oriented substantially parallel to an extension direction of each of said fins such that said inner and outer ends of said tongue form an angle therebetween;
wherein air leaving said rotor blades and impinging said bulge is either guided by said tapered outer end directly towards a first portion fins, or is guided to flow around said inner end of said tongue and potentially towards a second portion of said fins said fins. - View Dependent Claims (20)
- a blower comprising a housing and a rotor comprising a plurality of blades; and
Specification