Heat dissipation device
A heat discharge device having a bottom plate having a bottom and an upper surface. Heat discharge blades extend between two front faces of the bottom plate and inclinations of the heat discharge blades are configured in a way such that neighbouring heat discharge blades alternatingly approach one another and move away from each other. Neighbouring heat discharge blades are connected to one another at the end regions facing away from the upper surface of the bottom plate directly and delimit a first air flow channel. Neighbouring heat discharge blades delimit a second air flow channel, which is open at the side facing away from the upper surface of the bottom plate. The heat discharge blades have a group of air vents, wherein the first air flow channels are open at the opposite distal ends thereof and the second air flow channels are closed at the opposite distal ends thereof.
1 . A heat discharge device configured for arrangement on an electronic component, comprising a heat conductive bottom plate having a bottom and an upper surface facing away from the bottom,
wherein each heat discharge blade of a group of heat discharge blades extends continuously between two opposite front faces of the bottom plate from the upper surface of the bottom plate transversely across the bottom plate and inclined in respect to the upper surface of the bottom plate,
wherein each of the heat discharge blades delimits a first air flow channel within an interior of the heat discharge blade,
wherein neighbouring heat discharge blades cooperate with each other to delimit a second air flow channel between the neighbouring heat discharge blades that is open at a side thereof facing away from the upper surface of the bottom plate,
wherein the heat discharge blades each define a plurality of air holes extending through a portion of the heat discharge blade, and
wherein the first air flow channel is configured to be open at opposite distal ends thereof and the second air flow channel is configured to be closed at opposite distal ends thereof.
2 . The heat discharge device according to claim 1 , wherein the first air flow channel has a trapezoid cross-sectional shape.
3 . The heat discharge device according to claim 1 , wherein the distal end of the second air flow channel is configured to be closed by crimping the ends.
4 . The heat discharge device according to claim 1 , wherein a cross-section area of the first air flow channel is smaller than a sum of areas defined by the air holes in the heat discharge blades delimiting the first air flow channel.
5 . The heat discharge device according to claim 1 , wherein the upper surface of the bottom plate has ribs, on which there are arranged the heat discharge blades.
6 . The heat discharge device according to claim 1 , wherein the upper surface of the bottom plate has slits, into which the heat discharge blades are inserted.
7 . The heat discharge device according to claim 5 , wherein the heat discharge blades are connected to the ribs or slits by a heat conductive adhesive bond.
8 . The heat discharge device according to claim 1 , wherein the heat discharge blades are composed of copper or aluminium.
9 . The heat discharge device according to claim 1 , wherein the bottom plate is composed of copper, a copper-aluminium-composite, or an alloy.
10 . The heat discharge device according to claim 9 , wherein surfaces of the bottom plate have at least in those portions, which are provided for abutment to an electronic component, an electrically insulating layer, in particular an anodized layer.
11 . The heat discharge device according to claim 1 , wherein the bottom of the bottom plate is configured to be arranged at the at least one electronic component by being provided with recesses each comprising a relief configuration, the shape and dimension of which correspond to a contour of the electronic component.
12 . The heat discharge device according to claim 1 , wherein the air holes of the heat discharge blades are configured as round holes and/or elongate holes.
13 . The heat discharge device according to claim 1 , wherein the heat discharge blades include air vents that are configured in parallel to one another and orthogonal to the upper surface of the bottom plate upright within the heat discharge blades.
14 . The heat discharge device according to claim 1 , wherein the heat discharge blades are configured as extruded sections.
15 . The heat discharge device according to claim 1 , wherein the heat discharge device has at least one electric ventilator arranged above the heat discharge blades.
16 . The heat discharge device according to claim 15 , wherein the ventilator, in operation, blows an air flow into the second air flow channel.
17 . The heat discharge device according to claim 15 , wherein the at least one ventilator is mounted at the front faces of the bottom plate or at side walls extending upwards at or near the front faces of the bottom plate.
18 . The heat discharge device according to claim 17 , wherein the at least one ventilator is mounted at the front faces of the bottom plate or at side walls extending upwards at or near the front faces of the bottom plate by a mounting element connected to all heat discharge blades at the distal ends of the second air flow channels.
19 . The heat discharge device according to claim 1 , wherein the heat discharge blades are configured as trapezoid coil springs.