Heat sink as well as associated devices and methods

公开(公告)号:
WO2022148899A1
公开(公告)日:
2022-07-14
申请号:
PCT/FI2021/050829
申请日:
2021-11-30
授权日:
-
受理局:
世界知识产权组织
专利类型:
发明申请
简单法律状态:
PCT指定期满
法律状态/事件:
PCT进入指定国(指定期满)
IPC分类号:
F21V29/71 | F21V29/77 | F21V29/83 | F28D1/047 | F28D15/02 | F28F1/16 | F21V29/89 | F28D7/10 | H01L23/367 | H01L23/427
战略新兴产业分类:
-
国民经济行业分类号:
C4350 | C3874 | C4090 | C3879
当前申请(专利权)人:
THERMAL CHANNEL TECHNOLOGIES OY
原始申请(专利权)人:
THERMAL CHANNEL TECHNOLOGIES OY
当前申请(专利权)人地址:
Palolantie 3 E,90620 Oulu 02150 FI
工商统一社会信用代码:
-
工商登记状态:
-
工商注册地址:
-
工商成立日期:
-
工商企业类型:
-
发明人:
PENTIKÄINEN, VESA | JOKELAINEN, KIMMO
代理机构:
-
代理人:
LAINE IP OY
摘要:
According to an example aspect of the present invention, there is provided a heat sink (100) with an elongated inner core (110) and an elongated outer profile (120). The profile (120) forms a cross-sectional periphery and is provided around and at a distance from the core (110) such that an intermediate volume (160) is formed between the core (110) and the profile (120). The heat sink (100) also has a bridge (130) connecting the profile (120) to the core (110). The profile (120) has at least one opening (140) exposing the intermediate volume (160) to the ambient. The at least one opening (140) extends in a direction which is non-parallel to the dimension of elongation of the inner core (110).
技术问题语段:
The technical problem addressed in this patent is the need for a cooling solution that is effective and can be produced using conventional manufacturing methods and tools. The current methods for producing heat sinks have limitations such as limited freedom in design and limited effectiveness in non-vertical orientations. The invention provides a new heat sink design with an elongated inner core and an elongated outer profile, which allows for effective cooling and can be produced using conventional methods. The heat sink has at least one opening exposing the intermediate volume to the ambient, which increases the surface area for heat dissipation. The invention also provides a system with a plurality of heat sinks and a coupler for connecting a heat source, as well as an illuminator and an illuminating system. The heat sink can be installed in a non-horizontal tilted angle in relation to the vertical.
技术功效语段:
The present invention provides a heat sink with an elongated inner core and an elongated outer profile, which forms a cross-sectional periphery and is provided around and at a distance from the core. The profile has at least one opening exposing the intermediate volume to the ambient. The heat sink also has a bridge connecting the profile to the core. The invention also provides a heat dissipating system with a plurality of such heat sinks and a coupler with a plurality of channels for receiving the cores of the heat sinks. The invention also provides an illuminator with a heat sink and an artificial light source mounted on a shared coupler. The invention also provides a method for producing a heat sink with an additive manufacturing technique. The invention also provides a heat exchanger with a plurality of heat sinks connected in a flowing connection with one another. The technical effects of the invention include improved cooling efficiency, effective mass production with conventional manufacturing tools, and improved design flexibility.
权利要求:
CLAIMS: 1. A heat sink (100) comprising: - an inner core (110) elongated along a dimension of elongation; - an outer profile (120), which: o is provided along, around, and distanced from the core (110) such that an intermediate volume (160) is formed between the core (110) and the profile (120), and o comprises at least one opening (140) exposing the intermediate volume (160) to the ambient, and - a bridge (130) connecting the profile (120) to the core (110), characterized in that the at least one opening (140) extends in a direction which is non-parallel to the dimension of elongation of the inner core (110). 2. The heat sink (100) according to claim 1, wherein the at least one opening (140) extends in a direction which has a component along the cross-sectional periphery of the profile (120). 3. The heat sink (100) according to claim 1 or 2, wherein the at least one opening (140) extends along the periphery of the profile (120). 4. The heat sink (100) according to any one of the preceding claims, wherein the at least one opening (140) extends around the entire periphery of the profile (120) splitting the profile into several profile sections (121, 122). 5. The heat sink (100) according to any one of the preceding claims, wherein the profile (120) is elongated in a dimension of elongation and comprises a plurality of said openings (140) spaced apart from each other along the profile (120) in the dimension of elongation of the profile (120). 6. The heat sink (100) according to any one of the preceding claims, wherein the openings (140) are provided radially in respect to and rotationally about the dimension of elongation of the core (110). 7. The heat sink (100) according to any one of the preceding claims, wherein the at least one opening (140) extends through the bridge (130) exposing the core (110) to the ambient. 8. The heat sink (100) according to any one of the preceding claims, wherein the core (110) is hollow. 9. The heat sink (100) according to any one of the preceding claims, wherein the core (110) comprises a heat pipe (111) 10. The heat sink (100) according to claim 9, wherein the heat pipe (111) is integrated into the core (110). 11. The heat sink (100) according to claim 9 or 10, wherein the heat pipe (111) is closed and comprises a phase transition fluid for performing a thermosiphon cycle. 12. The heat sink (100) according to any one of the preceding claims, wherein the bridge (130) comprises a plurality of spokes (131) extending between the core (110) and the profile (120) through the intermediate volume (160). 13. The heat sink (100) according to claim 12, wherein at least one spoke (131) comprises a plurality fins (132) extending from the at least one spoke (131). 14. The heat sink (100) according to claim 13, wherein: - an initial extending angle (Q) of more than 90 degrees is formed between the spoke (131) and the fin (132) on the profile side of the fin (132), - the tangent of the fin (132) changes as a function of distance from the spoke (131) increasing the angle formed between the spoke (131) and the tangent of the fin (132) on the profile side of the fin (132) or wherein - an initial extending angle (Q) of more than 90 degrees is formed between the spoke (131) and the fin (132) on the profile side of the fin (132) and the tangent of the fin (132) changes as a function of distance from the spoke (131) increasing the angle formed between the spoke (131) and the tangent of the fin (132) on the profile side of the fin (132). 15. The heat sink (100) according to any one of the preceding claims 12 to 14, wherein at least one spoke (131) comprises a socket (133) for acting as a mounting point. 16. The heat sink (100) according to any one of the preceding claims, wherein the heat sink (100) comprises a coupler (150) for receiving a heat source (200). 17. The heat sink (100) according to claim 16, wherein the coupler (150) comprises a channel (151) for receiving the core (110) and a vapour chamber (152) in fluid communication with the channel (151). 18. The heat sink (100) according to claim 17, wherein the cross-section of the vapour chamber (152) is larger than that of the channel (151). 19. The heat sink (100) according to any one of the preceding claims, wherein the parts (110, 120, 130) making up the heat sink (100) are integral to one another. 20. A heat dissipating system, characterized by: - a plurality of heat sinks (100) in accordance with any one of the preceding claims 13 to 19and by - the coupler (150) comprising a plurality of said channels (151) for receiving the cores (110) of the plurality of heat sinks (110). 21. An illuminator, characterized by: - a heat sink (100) in accordance with any one of the preceding claims 15 to 19, and by - an artificial light source (210) mounted on the coupler (150). 22. An illuminating system (1000), characterized by: - a plurality of illuminators each comprising artificial light source (210) and by - a plurality of heat sinks (100) in accordance with any one of the preceding claims 15 to 19, wherein: - the coupler (150) comprises a plurality of said channels (151) for receiving the cores (110) of the plurality of heat sinks (110) - the plurality of artificial light sources (210) are mounted on the shared coupler (150). 23. A method for producing a heat sink (100) comprising providing a pre-form with an additive manufacturing technique to include: - an inner core (110); - an outer profile (120), which forms a periphery and is provided around and at a distance from the core (110) such that an intermediate volume (160) is formed between the core (110) and the profile (120), and - a bridge (130) connecting the profile (120) to the core (110) characterized in providing at least one opening (140) to the profile (120) with a material removing manufacturing technique such that the at least one opening (140) extends in a direction which has a component along the periphery of the profile (120) and exposes the intermediate volume (160) to the ambient. 24. The method according to claim 23, wherein the heat sink (100) is in accordance with any one of the preceding claims 1 to 19. 25. The method according to claim 23 or 24, wherein the additive manufacturing technique is extrusion. 26. The method according to any one of the preceding claims 23 to 25, wherein the material removing manufacturing technique is a chip removing manufacturing technique, such as lathing. 27. A method of installing a heat source (200) to a receptive structure, characterized in the heat source (200) being mounted on a heat sink (100) according to any one of the preceding claims 1 to 19 and in installing elongated heat sink (100) in a non- horizontal tilted angle in respect to the vertical with the heat source (200) facing down. 28. A heat exchanger (2000, 3000) comprising: - a first heat sink (100a) according to any one of the preceding claims 8 to 19, - a second heat sink (100b) according to any one of the preceding claims 8 to 19, and - a coupler (150) connecting the hollow cores (110) of the first and second heat sink (100a, 100b) into a flowing connection with one another. 29. The heat exchanger (2000) according to claim 28, wherein the heat sinks (100a, 100b) and the coupler (150) form a closed heat transferring channel. 30. The heat exchanger (2000) according to claim 28 or 29, wherein the heat exchanger (2000) comprises more than one such pair of heat sinks (100a, 100b). 31. The heat exchanger (3000) according to claim 28, wherein the heat exchanger (2000) is a flow through heat exchanger, wherein a coolant may flow through the heat sinks (100a, 100b) and coupler (150). 32. The heat exchanger (3000) according to claim 31, wherein the heat exchanger (3000) comprises more than one such coupler (150) connecting more than two such heat sinks (100a, 100b, 100c, lOOd) in succession.
技术领域:
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背景技术:
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发明内容:
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具体实施方式:
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