Heat sink for led lighting

Abstract

A heat sink for LED lighting formed of an aluminum material includes: a mounting face part having an LED element mounted on a surface thereof; a first fin part extending in a direction perpendicular to the mounting face part; and a second fin part extending in a direction perpendicular to the mounting face part and extending in a direction intersecting the first fin part.

1 - 16 . (canceled) 
     
     
         17 . A heat sink for LED lighting, comprising:
 a base plate;   a first heat-dissipating fin; and   a second heat-dissipating fin;   wherein:   the base plate, the first fin, and the second fin are formed integrally from aluminum or an aluminum alloy;   the base plate comprises a first surface suitable for mounting an LED element and a second surface opposite from the first surface;   the first fin extends from the first surface or the second surface of the base plate;   the second fin extends from the first surface or the second surface of the base plate;   no more than one additional heat-dissipating fin extends from the surface of the base plate from which the first fin extends and is parallel or substantially parallel to the first fin; and   no more than one additional heat-dissipating fin extends from the surface of the base plate from which the second fin extends and is parallel or substantially parallel to the second fin.   
     
     
         18 . The heat sink of  claim 17 , comprising:
 a third heat-dissipating fin; and   a fourth heat-dissipating fin;   wherein:   the first fin is not parallel or substantially parallel to the second fin;   the third fin is parallel or substantially parallel to the first fin; and   the fourth fin is parallel or substantially parallel to the second fin.   
     
     
         19 . The heat sink of  claim 18 , wherein each of the first fin, the second fin, the third fin, and the fourth fin extends from the first surface of the base plate. 
     
     
         20 . The heat sink of  claim 19 , wherein:
 the heat sink is formed by bending a blank of the aluminum or aluminum alloy; and   each of the first fin, the second fin, the third fin, and the fourth fin is formed by bending the blank such that the base plate joins each of the first fin, the second fin, the third fin, and the fourth fin at a location of a respective bend.   
     
     
         21 . The heat sink of  claim 19 , comprising:
 a fifth heat-dissipating fin;   a sixth heat-dissipating fin;   a seventh heat-dissipating fin; and   an eighth heat-dissipating fin;   wherein:   each of the fifth fin, the sixth fin, the seventh fin, and the eighth fin extends from the second surface of the base plate;   the fifth fin is not parallel or substantially parallel to the sixth fin;   the seventh fin is parallel or substantially parallel to the fifth fin; and   the eighth fin is parallel or substantially parallel to the sixth fin.   
     
     
         22 . The heat sink of  claim 18 , wherein each of the first fin, the second fin, the third fin, and the fourth fin extends from the second surface of the base plate. 
     
     
         23 . The heat sink of  claim 17 , comprising:
 a third heat-dissipating fin;   a fourth heat-dissipating fin; and   a fifth heat-dissipating fin;   wherein:   each of the first fin, the third fin, and the fourth fin extends from the first surface of the base plate;   each of the second fin and the fifth fin extends from the second surface of the base plate; the first fin is not parallel or substantially parallel to the second fin;   the third fin is parallel or substantially parallel to the first fin;   the fourth fin is not parallel or substantially parallel to the first fin; and   the fifth fin is parallel or substantially parallel to the second fin.   
     
     
         24 . The heat sink of  claim 17 , comprising:
 a third heat-dissipating fin; and   a fourth heat-dissipating fin;   wherein:   each of the first fin and the third fin extends from the first surface of the base plate;   each of the second fin and the fourth fin extends from the second surface of the base plate;   the first fin is parallel or substantially parallel to the second fin   the third fin is parallel or substantially parallel to the first fin; and   the fourth fin is parallel or substantially parallel to the second fin.   
     
     
         25 . The heat sink of  claim 18 , wherein:
 each of the first fin and the third fin extends from the first surface of the base plate; and   each of the second fin and the fourth fin extends from the second surface of the base plate.   
     
     
         26 . The heat sink of  claim 25 , wherein:
 the heat sink is formed by bending a blank of the aluminum or aluminum alloy; and   each of the first fin, the second fin, the third fin, and the fourth fin is formed by bending the blank such that the base plate joins each of the first fin, the second fin, the third fin, and the fourth fin at a location of a respective bend.   
     
     
         27 . A heat sink for LED lighting, comprising:
 a base plate;   a first heat-dissipating fin; and   a second heat-dissipating fin;   wherein:   the base plate, the first fin, and the second fin are formed integrally from aluminum or an aluminum alloy;   the base plate comprises a first surface suitable for mounting an LED element and a second surface opposite from the first surface;   the first fin comprises a first surface and a second surface opposite from the first surface;   the first fin extends from the first surface or the second surface of the base plate; and   the second fin extends from the first surface or the second surface of the first fin.   
     
     
         28 . The heat sink of  claim 27 , comprising:
 a third heat-dissipating fin;   a fourth heat-dissipating fin;   a fifth heat-dissipating fin;   a sixth heat-dissipating fin;   a seventh heat-dissipating fin; and   an eighth heat-dissipating fin;   wherein:   the first fin extends from the first surface of the base plate;   the second fin extends from the second surface of the first fin;   the third fin extends from the second surface of the first fin;   the fourth fin extends from the second surface of the base plate;   the fifth fin extends from the second surface of the base plate;   the sixth fin comprises a first surface and a second surface opposite from the first surface;   the sixth fin extends from the second surface of the base plate;   the seventh fin extends from the first surface of the sixth fin; and   the eighth fin extends from the first surface of the sixth fin.   
     
     
         29 . The heat sink of  claim 28 , wherein:
 the heat sink is formed by bending a blank of the aluminum or aluminum alloy;   each of the first fin, the fourth fin, the fifth fin, and the sixth fin is formed by bending the blank such that the base plate joins each of the first fin, the fourth fin, the fifth fin, and the sixth fin at a location of a respective bend;   each of the second fin and the third fin is formed by bending the blank such that the first fin joins each of the second fin and the third at a location of a respective bend; and   each of the seventh fin and the eighth fin is formed by bending the blank such that the sixth fin joins each of the seventh fin and the eighth fin at a location of a respective bend.   
     
     
         30 . The heat sink of  claim 29 , wherein the blank comprises a thick portion corresponding to the base plate, the first fin, and the sixth fin and a thin portion corresponding to corresponding to the second fin, the third fin, the fourth fin, the fifth fin, the seventh fin, and the eighth fin. 
     
     
         31 . The heat sink of  claim 30 , wherein the blank is prepared by welding sheets of the aluminum or aluminum alloy. 
     
     
         32 . The heat sink of  claim 30 , wherein the blank is prepared by coining. 
     
     
         33 . The heat sink of  claim 27 , comprising:
 a third heat-dissipating fin;   a fourth heat-dissipating fin;   a fifth heat-dissipating fin;   a sixth heat-dissipating fin;   a seventh heat-dissipating fin;   an eighth heat-dissipating fin;   a ninth heat-dissipating fin;   a tenth heat-dissipating fin; and   an eleventh heat-dissipating fin;   wherein:   the first fin extends from the first surface of the base plate;   the second fin comprises a first surface and a second surface opposite from the first surface;   the second fin extends from the second surface of the first fin;   the third fin extends from the first surface of the first fin;   the fourth fin extends from the first surface of the first fin;   the fifth fin extends from the second surface of the surface of the second fin;   the sixth fin extends from the second surface of the surface of the second fin;   the seventh fin extends from the second surface of the base plate;   the eighth fin extends from the second surface of the base plate;   the ninth fin comprises a first surface and a second surface opposite from the first surface;   the ninth fin extends from the second surface of the first fin;   the tenth fin extends from the first surface of the ninth fin; and   the eleventh fin extends from the first surface of the ninth fin.   
     
     
         34 . The heat sink of  claim 33 , wherein:
 a portion of the fifth fin overlaps and contacts a portion of the fourth fin;   a portion of the fifth fin overlaps and contacts a portion of the seventh fin;   a portion of the sixth fin overlaps and contacts a portion of the third fin;   a portion of the sixth fin overlaps and contacts a portion of the eighth fin;   a portion of the seventh fin overlaps and contacts a portion of the eleventh fin; and   a portion of the eighth fin overlaps and contacts a portion of the tenth fin.   
     
     
         35 . The heat sink of  claim 33 , wherein:
 the heat sink is formed by bending a blank of the aluminum or aluminum alloy;   each of the first fin, the seventh fin, the eighth fin, and the ninth fin is formed by bending the blank such that the base plate joins each of the first fin, the seventh fin, the eighth fin, and the ninth fin at a location of a respective bend;   each of the second fin, the third fin, and the fourth fin is formed by bending the blank such that the first fin joins each of the second fin, the third fin, and the fourth fin at a location of a respective bend;   each of the fifth fin and the sixth fin is formed by bending the blank such that the second fin joins each of the fifth fin and the sixth fin at a location of a respective bend; and   each of the tenth fin and the eleventh fin is formed by bending the blank such that the ninth fin joins each of the tenth fin and the eleventh fin at a location of a respective bend.   
     
     
         36 . The heat sink of  claim 27 , comprising:
 a third heat-dissipating fin;   a fourth heat-dissipating fin; and   a fifth heat-dissipating fin;   wherein:   the first fin extends from the first surface of the base plate;   the second fin extends from the second surface of the first fin;   the third fin extends from the first surface of the base plate;   the fourth fin extends from the first surface of the base plate; and   the fifth fin extends from the second surface of the base plate.   
     
     
         37 . The heat sink of  claim 28 , wherein:
 the heat sink is formed by bending a blank of the aluminum or aluminum alloy;   each of the first fin, the fourth fin, the fifth fin, and the sixth fin is formed by bending the blank such that the base plate joins each of the first fin, the fourth fin, the fifth fin, and the sixth fin at a location of a respective bend;   each of the second fin and the third fin is formed by bending the blank such that the first fin joins each of the second fin and the third at a location of a respective bend; and   each of the seventh fin and the eighth fin is formed by bending the blank such that the sixth fin joins each of the seventh fin and the eighth fin at a location of a respective bend.   
     
     
         38 . A heat sink for LED lighting, comprising:
 a base plate;   a first heat-dissipating fin;   a second heat-dissipating fin; and   a third heat-dissipating fin;   wherein:   the base plate, the first fin, the second fin, and the third fin are formed integrally from aluminum or an aluminum alloy;   the base plate comprises a first surface suitable for mounting an LED element and a second surface opposite from the first surface;   the first fin extends from the second surface of the base plate;   the second fin comprises a first surface and a second surface opposite from the first surface;   the second fin extends from the second surface of the base plate; and   the third fin extends from the first surface or the second surface of the second fin.   
     
     
         39 . The heat sink of  claim 38 , comprising:
 a fourth heat-dissipating fin;   a fifth heat-dissipating fin;   a sixth heat-dissipating fin;   a seventh heat-dissipating fin; and   an eighth heat-dissipating fin;   wherein:   the third fin extends from the first surface of the second fin;   the fourth fin extends from the first surface of the second fin;   the fifth fin extends from the second surface of the base plate;   the sixth fin comprises a first surface and a second surface opposite from the first surface;   the sixth fin extends from the second surface of the base plate;   the seventh fin extends from the first surface of the sixth fin; and   the eighth fin extends from the first surface of the sixth fin.   
     
     
         40 . The heat sink of  claim 38 , comprising:
 a fourth heat-dissipating fin;   a fifth heat-dissipating fin; and   a sixth heat-dissipating fin;   wherein:   the fourth fin extends from the second surface of the base plate;   the fifth fin comprises a first surface and a second surface opposite from the first surface; and   the sixth fin extends from the first surface or the second surface of the fifth fin.   
     
     
         41 . The heat sink of  claim 38 , comprising:
 a fourth heat-dissipating fin;   a fifth heat-dissipating fin;   a sixth heat-dissipating fin;   a seventh heat-dissipating fin; and   an eighth heat-dissipating fin;   wherein:   the third fin extends from the first surface of the second fin;   the fourth fin extends from the second surface of the second fin;   the fifth fin extends from the second surface of the base plate;   the sixth fin comprises a first surface and a second surface opposite from the first surface;   the sixth fin extends from the second surface of the base plate;   the seventh fin extends from the first surface of the sixth fin; and   the eighth fin extends from the second surface of the sixth fin.   
     
     
         42 . The heat sink of  claim 38 , comprising:
 a fourth heat-dissipating fin; and   a fifth heat-dissipating fin;   wherein:   the third fin extends from the first surface of the second fin;   the fourth fin extends from the second surface of the second fin; and   the fifth fin extends from the second surface of the base plate.   
     
     
         43 . A heat sink for LED lighting, comprising:
 a bent planar base plate;   a first heat-dissipating fin; and   a second heat-dissipating fin;   wherein:   the base plate, the first fin, and the second fin are formed integrally from aluminum or an aluminum alloy;   the base plate comprises an inner surface and an outer surface opposite from the inner surface;   the first fin extends from the inner surface or the outer surface of the base plate; and   the second fin extends from the same surface of the base plate as the first fin.   
     
     
         44 . The heat sink of  claim 43 , wherein:
 the inner surface of the base plate is suitable for mounting an LED element;   the first fin and the second fin extend from the outer surface;   the base plate comprises a first planar region and a second planar region that are joined by a bent region;   the first fin extends from the outer surface of the base plate in the first planar region, the second planar region, and the bent region; and   the second fin extends from the outer surface of the base plate in the first planar region, the second planar region, and the bent region.   
     
     
         45 . The heat sink of  claim 43 , wherein:
 the outer surface of the base plate is suitable for mounting an LED element;   the first fin and the second fin extend from the inner surface;   the base plate comprises a first planar region and a second planar region that are joined by a bent region;   the first fin extends from the inner surface of the base plate in the first planar region, the second planar region, and the bent region; and   the second fin extends from the inner surface of the base plate in the first planar region, the second planar region, and the bent region.   
     
     
         46 . The heat sink of  claim 43 , comprising:
 a third heat-dissipating fin; and   a fourth heat-dissipating fin;   wherein:   the inner surface of the base plate is suitable for mounting an LED element;   the first fin, the second fin, the third fin, and the fourth fin extend from the outer surface;   the base plate comprises a first planar region and a second planar region that are joined by a bent region;   the first fin and the second fin extend from the outer surface of the base plate in the first planar region; and   the second fin and the fourth fin extend from the outer surface of the base plate in the second planar region.   
     
     
         47 . The heat sink of  claim 43 , comprising:
 a third heat-dissipating fin; and   a fourth heat-dissipating fin;   wherein:   the outer surface of the base plate is suitable for mounting an LED element;   the first fin, the second fin, the third fin, and the fourth fin extend from the inner surface;   the base plate comprises a first planar region and a second planar region that are joined by a bent region;   the first fin and the second fin extend from the inner surface of the base plate in the first planar region; and   the second fin and the fourth fin extend from the inner surface of the base plate in the second planar region.   
     
     
         48 . A heat sink for LED lighting, comprising a corrugated sheet of aluminum or an aluminum alloy, wherein at least one ridge of the corrugated sheet comprises a depression comprising a surface suitable for mounting an LED element. 
     
     
         49 . The heat sink of  claim 48 , wherein:
 the corrugated sheet comprises a lower step portion and a higher step portion; and   the lower step portion and the higher step portion are not coplanar.   
     
     
         50 . The heat sink of  claim 48 , wherein:
 the corrugated sheet comprises a narrow pitch portion and a wide pitch portion; and   a pitch of ridges of the corrugated sheet in the narrow pitch portion is less than a pitch of ridges of the corrugated sheet in the wide pitch portion.   
     
     
         51 . The heat sink of  claim 48 , wherein the corrugated sheet comprises a raised portion extending transverse to ridges of corrugated sheet. 
     
     
         52 . The heat sink of  claim 48 , wherein the corrugated sheet comprises a depressed portion extending transverse to ridges of corrugated sheet. 
     
     
         53 . The heat sink of  claim 48 , wherein at least one portion of the corrugated sheet is not corrugated.