Radial fin heat sink for remote radio heads and the like
First Claim
1. An apparatus comprising a heat sink for an electronics module, wherein:
- the heat sink comprises a base, a plurality of forward-facing fins, and a plurality of backward-facing fins;
a first side of the base is substantially planar and adapted for mounting to the electronics module;
each forward-facing fin comprises (i) a proximal end attached to a second side of the base and (ii) an opposite distal end;
each backward-facing fin comprises (i) a proximal end attached to the second side of base and (ii) an opposite distal end;
the proximal ends of the plurality of forward-facing fins are collinear; and
the distal ends of the plurality of forward-facing fins define an arc of an ellipse;
the distal ends of the plurality of backward-facing fins define extensions of the arc of the ellipse defined by the plurality of forward-facing fins;
wherein the second side of the base is substantially planar and parallel to the first side;
wherein each of the forward-facing fins is not parallel with at least one immediately adjacent forward-facing fin;
wherein a first forward-facing fin of the plurality of forward-facing fins is located farther from a center line of the first side of the base than a second forward-facing fin of the plurality of forward-facing fins,wherein the first forward-facing fin has a greater angle measurement between the first forward-facing fin and a line perpendicular to the first side of the base than the second forward-facing fin and the line perpendicular to the first side of the base; and
wherein the first forward-facing fin of the plurality of forward-facing fins has a shorter length, measured from the proximal end of the first forward-facing fin to the distal end of the first forward-facing fin, than a length of the second forward-facing fin, measured from the proximal end of the second forward-facing fin to the distal end of the second forward-facing fin.
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Accused Products
Abstract
In one embodiment, an apparatus includes three remote radio heads (RRHs) mounted on a pole using one or more triangular brackets, each RRH connected to a corresponding antenna. Each RRH includes an electronics module, a heat sink mounted on the electronics module, and a cover attached to the heat sink. The heat sink comprises a base, a plurality of attached forward-facing fins, and a pair of backward-facing fins. Each forward-facing fin and backward-facing fin comprises a proximal end attached to the base and an opposite distal end. The proximal ends of the plurality of forward-facing fins are collinear. The distal ends of the plurality of forward-facing fins and the backward-facing fins define an arc of an ellipse.
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Citations
10 Claims
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1. An apparatus comprising a heat sink for an electronics module, wherein:
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the heat sink comprises a base, a plurality of forward-facing fins, and a plurality of backward-facing fins; a first side of the base is substantially planar and adapted for mounting to the electronics module; each forward-facing fin comprises (i) a proximal end attached to a second side of the base and (ii) an opposite distal end; each backward-facing fin comprises (i) a proximal end attached to the second side of base and (ii) an opposite distal end; the proximal ends of the plurality of forward-facing fins are collinear; and the distal ends of the plurality of forward-facing fins define an arc of an ellipse; the distal ends of the plurality of backward-facing fins define extensions of the arc of the ellipse defined by the plurality of forward-facing fins; wherein the second side of the base is substantially planar and parallel to the first side; wherein each of the forward-facing fins is not parallel with at least one immediately adjacent forward-facing fin; wherein a first forward-facing fin of the plurality of forward-facing fins is located farther from a center line of the first side of the base than a second forward-facing fin of the plurality of forward-facing fins, wherein the first forward-facing fin has a greater angle measurement between the first forward-facing fin and a line perpendicular to the first side of the base than the second forward-facing fin and the line perpendicular to the first side of the base; and wherein the first forward-facing fin of the plurality of forward-facing fins has a shorter length, measured from the proximal end of the first forward-facing fin to the distal end of the first forward-facing fin, than a length of the second forward-facing fin, measured from the proximal end of the second forward-facing fin to the distal end of the second forward-facing fin. - View Dependent Claims (2, 3, 6, 7, 8)
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4. An apparatus comprising a heat sink for an electronics module, wherein:
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the heat sink comprises a base and a plurality of forward-facing fins and a plurality of backward-facing fins; a first side of the base is substantially planar and adapted for mounting to the electronics module; each forward-facing fin comprises (i) a proximal end attached to a substantially planar second side of the base and (ii) an opposite distal end; each backward-facing fin comprises (i) a proximal end attached to the second side of base and (ii) an opposite distal end; the proximal ends of the plurality of forward-facing fins are collinear, the distal ends of the plurality of forward-facing fins define an arc of an ellipse; and the first side of the base and the second side of the base are parallel; the apparatus further comprising a cover, wherein; the cover comprises a plate having a curvature and adapted to fit over the heat sink, the cover further comprising at least one of a plurality of hooks and/or a plurality of a plurality of bayonets; the curvature of the cover corresponds to the are defined by the distal ends of the plurality of forward-facing fins; the backward-facing fins comprise a plurality of apertures corresponding to the plurality of hooks and/or the plurality of bayonets and adapted to receive the plurality of hooks and/or the plurality of bayonets; and the cover is removably attached over the heat sink. - View Dependent Claims (5)
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9. A remote radio head subassembly, comprising:
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an electronics module comprising one or more input/output ports for connecting the remote radio head subassembly to a base band unit and/or an antenna; a heat sink comprising a base, a plurality of forward-facing fins, and a plurality of backward-facing fins; a first substantially planar-side of the base mounted to the electronics module;
each forward-facing fin comprising (i) a proximal end attached to a second substantially planar side of the base and (ii) an opposite distal end;each backward-facing fin comprising (i) a proximal end attached to the second side of base and (ii) an opposite distal end; the proximal ends of the plurality of forward-facing fins being collinear; each of the forward-facing fins is not parallel with at least one immediately adjacent forward-facing fin; the distal ends of the plurality of forward-facing fins defining an arc of an ellipse; and the distal ends of the plurality of backward-facing fins defining extensions of the are of the ellipse. - View Dependent Claims (10)
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Specification