IPC分类号：
F21V29/00 | F21Y101/02
国民经济行业分类号：
C4350 | C3874 | C4090 | C3879
当前申请(专利权)人：
KONINKLIJKE PHILIPS N.V.
原始申请(专利权)人：
KONINKLIJKE PHILIPS N.V.
当前申请(专利权)人地址：
High Tech Campus 5,NL-5656 AE Eindhoven NL
发明人：
DESMET, LIEVEN, RAF, ROGER | KNAAPEN, BRAM
代理人：
VAN EEUWIJK, ALEXANDER, HENRICUS, WALTERUS ET AL.
摘要：
The present invention relates to a heat sink attached to a heat-generation device for dissipating heat therefrom. The heat sink comprises a plurality of air flow channels, wherein at least two air flow channels are mutually connected so that at least portion of the air flow entering a first air flow channel can be directed to a second air flow channel. The main advantage of this invention is that a higher efficiency in heat dissipation can be obtained.
权利要求：
Claims
1. A heat sink attached to a heat-generation device for dissipating heat therefrom, comprising:
a plurality of air flow channels,
wherein at least a first and a second air flow channels are mutually connected via at least one branch channel intersecting the two air flow channels, so that at least portion of the air flow entering the first air flow channel can be directed to the second air flow channel via the at least one branch channel.
2. The heat sink of claim 1 , wherein the least one branch channel comprises at least one hole in a wall between two adjacent air flow channels.
3. The heat sink of claim 1 or 2, wherein the plurality of air flow channels are configured to direct at least a portion of the air flow entering the first air flow channel to a third air flow channel not adjacent to the first air flow channel, at least via the at least one branch channel.
4. The heat sink of claim 1 or 2, wherein a portion of air flow channels close to the heat-generation device has a smaller cross-section than a portion of air flow channels far away from the heat-generation device.
5. The heat sink of claim 1 or 2, wherein the plurality of air flow channels are formed in the shape of a crystal lattice or a sponge.
6. The heat sink of claim 1 or 2, wherein the plurality of air flow channels are formed over at least three spatial directions such that air flow enters from one direction can be directed out from other directions.
7. The heat sink of claim 1 or 2, wherein the plurality of air flow channels have a profile of bio-mimicry shape.
8. The heat sink according to claim 1 or 2, wherein the heat sink is manufactured by 2D-layer stacking and/or 3D printing and/or machine cutting/milling/drilling.
9. The heat sink according to claim 1 or 2, wherein the heat-generation device is an illumination device.
10. A luminaire comprising of the heat sink as claimed in any one of the preceding claims.