KR101926035B1 - 프랙탈 열전달 장치 - Google Patents
프랙탈 열전달 장치 Download PDFInfo
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- KR101926035B1 KR101926035B1 KR1020127031809A KR20127031809A KR101926035B1 KR 101926035 B1 KR101926035 B1 KR 101926035B1 KR 1020127031809 A KR1020127031809 A KR 1020127031809A KR 20127031809 A KR20127031809 A KR 20127031809A KR 101926035 B1 KR101926035 B1 KR 101926035B1
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
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Abstract
Description
본 발명의 일 실시예에 따르면, 히트 싱크는 냉각될 장치로부터 열확산에 의해 열을 받아들이도록 구성된 열전달 표면을 더 포함할 수 있다. 상기 히트 싱크는 또한 상기 냉각될 장치와 상기 히트 싱크 간에 열을 소통시키도록 구성된 상기 열전달 표면에 더멀 인터페이스 재료(thermal interface material)를 더 포함할 수 있다.
본 발명의 다른 실시예에서, 열전달 유체의 흐름을 유도하도록 구성된 펌프 또는 팬(fan)이 제공된다.
본 발명의 또 다른 실시예에서, 각각의 상기 열교환 요소는 상호 연결된 한 조(組)의 외부 고체-기체 인터페이스 표면들을 포함하며, 상호 연결된 표면의 구성은 순환 수식에 의해 기술된다.
본 발명의 다른 바람직한 실시예는 히트 싱크로서, 열교환 표면에 접촉하는 물체와 열을 전도 방식으로 교환하도록 구성된 열교환 표면을 갖는 열도전성 몸체; 상기 몸체로부터 연장하고, 각각 2개 이상의 레벨의 브랜칭을 갖는 2개 이상의 돌출부를 가지며, 각각의 브랜치의 비율은 상이한 돌출부들 간에는 다른, 돌출부의 세트; 및 열을 전도 방식으로 및 복사 방식으로 전달하도록 구성된, 각각의 돌출부의 적어도 말단 브랜치(terminal branch)의 외부 표면을 포함하며, 각각의 말단 브랜치 간의 복사 방식의 열전달이 비대칭적으로 이루어지며, 상기 외부 표면은 유체 유속의 범위에 걸쳐 상기 외부 표면 위에 비대칭적 패턴의 소용돌이를 발생하도록 적합화된 유체 열역학 특성을 갖는 것을 특징으로 하는 히트 싱크를 제공한다.
도 2는 본 발명의 일례의 실시예인 프랙탈 히트 싱크를 도시하고 있으며, 이 실시예에서 히트 싱크가 냉각될 물체에 인접하여 위치되어 있다.
도 3은 본 발명의 일례의 실시예인 프랙탈 히트 싱크를 도시하고 있으며, 이 실시예에서 히트 싱크가 냉각될 물체에 인접하여 위치되거나 또는 냉각될 물체를 둘러싸도록 위치되어 있다.
Claims (32)
- 히트 싱크에 있어서,
복수의 고체 열교환 요소를 갖는 열교환 장치 ― 각각의 열교환 요소는 열전달 매체로의 열전달에 유효한 외부 표면을 가지며, 적어도 3개 레벨의 비대칭 프랙탈 브랜칭(fractal branching)을 갖고, 3차원 변형(variation)을 가지며, 상기 열전달 매체 안으로 연장되는 비대칭 브랜치 형태로 배열됨 ―; 및
열원과 인터페이스하도록 구성된 평탄한 베이스
를 포함하고,
상기 복수의 고체 열교환 요소는 흐름 유도 소용돌이(flow-induced vortex)가 열교환 요소들의 서로 대응하지 않는 위치들에서 발생되도록 구성된 것을 특징으로 하는 히트 싱크. - 제1항에 있어서,
열전달 유체가 상기 복수의 열교환 요소 중의 하나 이상에 대하여 난류성으로(turbulently) 흐르도록 유도되는, 히트 싱크. - 제1항에 있어서,
상기 히트 싱크는 평면형이며, 상기 복수의 열교환 요소는 2차원으로 브랜치하는, 히트 싱크. - 제1항에 있어서,
상기 복수의 열교환 요소는 3차원으로 브랜치하는, 히트 싱크. - 제1항에 있어서,
상기 복수의 열교환 요소에서의 프랙탈 변형은 어쿠스틱 방출 파워(acoustic emission power)를 광대역에 걸쳐 분배하되, 이는 복수의 브랜치된 열교환 요소 위에서 강제 공기 흐름에 의해 발생하는, 히트 싱크. - 제1항에 있어서,
상기 열교환 장치는 열전도율이 850 W/(mㆍK)를 초과하는 요소를 포함하는, 히트 싱크. - 제1항에 있어서,
상기 열교환 장치는 그래핀(graphene)을 포함하는, 히트 싱크. - 제1항에 있어서,
상기 열교환 장치는 다이아몬드를 포함하는, 히트 싱크. - 제1항에 있어서,
상기 열교환 장치는 포논 운송(phonon transport)을 지원하는 연장된 규칙적 격자(extended regular lattice)를 갖는 조성물을 포함하는, 히트 싱크. - 제1항에 있어서,
상기 열교환 장치는 탄소 나노튜브를 포함하는, 히트 싱크. - 제10항에 있어서,
상기 탄소 나노튜브가 정렬되어 있는, 히트 싱크. - 제1항에 있어서,
하나 이상의 지점에서 냉각될 고체와 연결하도록 구성된 하나 이상의 컨넥터를 더 포함하는, 히트 싱크. - 제12항에 있어서,
상기 하나 이상의 컨넥터는 포인트 컨넥터(point connector), 버스, 와이어, 평면형 컨넥터, 및 3차원 컨넥터로 이루어진 군에서 선택되는, 히트 싱크. - 제1항에 있어서,
상기 히트 싱크의 중앙에 있는 애퍼처를 더 포함하는, 히트 싱크. - 고체를 냉각하는 방법에 있어서,
적어도 3개 레벨의 브랜칭에 걸쳐 비대칭 프랙탈 브랜칭 패턴을 각각 구비하고, 또한 각각 3차원 변형(variation)을 가지며 열전달 유체를 포함하고 있는 공간 안으로 연장되는 복수의 고체 열교환 요소를 갖는 열교환 장치를 포함하는 히트 싱크와 상기 고체를 연결하는 단계;
상기 고체로부터의 열을 상기 히트 싱크에 전달하는 단계; 및
상기 복수의 열교환 요소 위의 상기 공간에 열전달 유체를 흐르게 함으로써 상기 히트 싱크로부터 열을 소산시키는 단계
를 포함하고,
상기 열전달 유체는, 흐름 유도 소용돌이(flow-induced vortex)가 열교환 요소들의 서로 대응하지 않는 위치들에 발생하도록, 상기 복수의 열교환 요소에 대해 흐르도록 유도되고, 그 결과, 흐름 유도 소용돌이를 열교환 요소들의 서로 대응하는 위치들에서 생성하는 복수의 열교환 요소를 가지는 대응하는 열교환 장치에 비해 공진을 감소시키는 것을 특징으로 하는 고체를 냉각하는 방법. - 제15항에 있어서,
상기 열전달 유체를 흐르게 하는 것은 광대역의 어쿠스틱 방출을 유도하는, 고체를 냉각하는 방법. - 히트 싱크에 있어서,
열전달 유체에 대하여 표면 경계를 각각 갖는 복수의 고체 열교환 요소를 갖는 열교환 장치를 포함하며, 각각의 열교환 요소는 적어도 3개 레벨의 비대칭 프랙탈 브랜칭(fractal branching)을 갖고, 3차원 변형(variation)을 가지며 열교환 유체를 포함하고 있는 공간 안으로 연장되는 비대칭 브랜치 형태로 배열되고,
상기 열전달 유체는, 흐름 유도 소용돌이(flow-induced vortex)가 복수의 열교환 요소의 서로 대응하지 않는 위치에 발생되도록, 상기 공간 내의 복수의 열교환 요소에 대해 흐르도록 유도되며, 그 결과, 복수의 열교환 요소 상의 대응하는 위치에 흐름 유도 소용돌이를 발생하는 복수의 열교환 요소를 갖는 대응하는 열교환 장치에 비하여 공진을 감소시키는 것을 특징으로 하는 히트 싱크. - 제17항에 있어서,
냉각될 장치로부터 열확산에 의해 열을 받아들이도록 구성된 열전달 표면을 더 포함하는, 히트 싱크. - 제18항에 있어서,
상기 냉각될 장치와 상기 열교환 장치 간에 열을 소통시키도록 구성된 상기 열전달 표면에 더멀 인터페이스 재료(thermal interface material)를 더 포함하는, 히트 싱크. - 제17항에 있어서,
상기 열교환 장치의 적어도 일부분이 850 W/(mㆍK)를 초과하는 벌크 열전도율(bulk heat conductivity)을 갖는 재료를 포함하는, 히트 싱크. - 제17항에 있어서,
상기 열교환 장치는 탄소 나노튜브를 포함하는, 히트 싱크. - 제17항에 있어서,
열원에 연관된 고체 상태의 물체에 상기 히트 싱크를 고정하도록 설계된 하나 이상의 컨넥터를 더 포함하는, 히트 싱크. - 제17항에 있어서,
상기 열교환 장치는 상기 열전달 유체의 흐름을 유도하도록 구성된 펌프 또는 팬(fan)을 포함하는, 히트 싱크. - 제17항에 있어서,
상기 열전달 유체는 기체인, 히트 싱크. - 제17항에 있어서,
상기 열교환 요소는 콘딧을 포함하며, 액체 상태의 열전달 유체가 상기 콘딧 내에 담겨지며, 상기 콘딧이 순환 수식(recursive formula)에 의해 기술되는 길이 및 배열을 갖는, 히트 싱크. - 제17항에 있어서,
각각의 상기 열교환 요소는 상호 연결된 한 조(組)의 외부 고체-기체 인터페이스 표면들을 포함하며, 상호 연결된 표면의 구성은 순환 수식에 의해 기술되는, 히트 싱크. - 제17항에 있어서,
상기 열전달 유체는 상기 열교환 장치에 의해 구속되지 않는(unconstrained), 히트 싱크. - 고체를 냉각하는 방법에 있어서,
비대칭 브랜치 형태로 배열된 동일하지 않게 성형된 복수의 고체 열교환 요소를 갖고, 3차원 변형(variation)을 가지며 열전달 유체를 포함하고 있는 공간 안으로 연장되는 열교환 장치를 포함하는 히트 싱크와 상기 고체를 연결하는 단계; 및
상기 열전달 유체를 상기 공간 내의 상기 복수의 열교환 요소에 대하여 흐르도록 유도하는 단계를 포함하며,
상기 유체의 흐름이 상기 열교환 요소의 각각의 물리적 구성에 좌우되어 상기 열교환 요소에 인접하여 각각의 브랜치의 서로 대응하지 않는 위치에서 소용돌이를 유도하는,
것을 특징으로 하는 고체를 냉각하는 방법. - 제28항에 있어서,
상기 소용돌이가 상기 열교환 장치에 대하여 균일하지 않게 분포되는, 고체를 냉각하는 방법. - 제28항에 있어서,
상기 복수의 열교환 요소 사이의 프랙탈 관계는 복수의 열교환 요소들 간에 선형 또는 유클리드의 기하학적 변형을 갖는 대응하는 열교환 장치에 비하여 협대역의 어쿠스틱 공진(narrow band acoustic resonance)을 감소시키는, 고체를 냉각하는 방법. - 제28항에 있어서,
상기 열전달 유체는 상기 열교환 장치에 의해 감싸지지 않는, 고체를 냉각하는 방법. - 히트 싱크에 있어서,
열교환 표면에 접촉하는 물체와 열을 전도 방식으로 교환하도록 구성된 열교환 표면을 갖는 열도전성 몸체;
상기 몸체로부터 연장하고, 2개 이상의 돌출부를 갖고, 각각의 돌출부가 2개 이상의 레벨의 브랜칭을 갖고, 3차원 변형(variation)을 가지며 열교환 유체 매체를 가지는 공간 안으로 연장되고, 각각의 브랜치의 비율이 돌출부들 간에 서로 다른, 돌출부의 세트; 및
열을 전도 방식으로 및 복사 방식으로 상기 공간 내의 열교환 유체 매체 내로 전달하도록 구성된, 각각의 돌출부의 적어도 말단 브랜치(terminal branch)의 외부 표면을 포함하며,
각각의 말단 브랜치 간의 복사 방식의 열전달이 비대칭적으로 이루어지며,
상기 외부 표면은 열전달 유체 매체 유속의 범위에 걸쳐, 각각의 브랜치의 서로 대응하지 않는 위치에서 상기 외부 표면 위로 흐르는 상기 열교환 유체 매체 내에 비대칭적 패턴의 소용돌이를 발생하는 유체 열역학 특성을 갖는 것을 특징으로 하는 히트 싱크.
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- 2011-05-13 KR KR1020197035325A patent/KR102166190B1/ko active Active
- 2011-05-13 KR KR1020127031809A patent/KR101926035B1/ko active Active
- 2011-05-13 WO PCT/IB2011/001026 patent/WO2011138670A2/en not_active Ceased
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2024
- 2024-09-02 US US18/822,342 patent/US20240426563A1/en active Pending
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| US20050116336A1 (en) * | 2003-09-16 | 2005-06-02 | Koila, Inc. | Nano-composite materials for thermal management applications |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20180132941A (ko) | 2018-12-12 |
| EP2567174A4 (en) | 2017-09-27 |
| EP2567174B1 (en) | 2020-02-26 |
| KR20190134856A (ko) | 2019-12-04 |
| EP2567174A2 (en) | 2013-03-13 |
| WO2011138670A3 (en) | 2016-03-24 |
| KR20140019210A (ko) | 2014-02-14 |
| KR102166190B1 (ko) | 2020-10-15 |
| WO2011138670A2 (en) | 2011-11-10 |
| US20240426563A1 (en) | 2024-12-26 |
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