KR20250056015A - Super heat dissipation carbon fiber heat sink - Google Patents
Super heat dissipation carbon fiber heat sink Download PDFInfo
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- KR20250056015A KR20250056015A KR1020230139865A KR20230139865A KR20250056015A KR 20250056015 A KR20250056015 A KR 20250056015A KR 1020230139865 A KR1020230139865 A KR 1020230139865A KR 20230139865 A KR20230139865 A KR 20230139865A KR 20250056015 A KR20250056015 A KR 20250056015A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/858—Means for heat extraction or cooling
- H10H20/8581—Means for heat extraction or cooling characterised by their material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4242—Carbon fibres
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/18—Physical properties including electronic components
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
본 발명은 기존의 알루미늄 방열판(heat sink)의 비표면적보다 월등히 큰 비표면적을 가지는 탄소 단섬유를 탄소 부직포로 제조하여 초방열이 가능한 초방열 탄소섬유 히트싱크에 관한 것이다.
본 발명은 탄소단섬유로 제조된 탄소 부직포로 이루어지되, 상기 탄소단섬유는, 100㎤ 부피 내에 3.6×
The present invention comprises a carbon non-woven fabric made of carbon fibers, wherein the carbon fibers have a density of 3.6× within a volume of 100㎤.
Description
본 발명은 초방열 탄소섬유 히트싱크에 관한 것으로서, 보다 상세하게는 기존의 알루미늄 방열판(heat sink)의 비표면적보다 월등히 큰 비표면적을 가지는 탄소 단섬유를 탄소 부직포로 제조하여 초방열이 가능한 초방열 탄소섬유 히트싱크에 관한 것이다.The present invention relates to a super-heat dissipative carbon fiber heat sink, and more specifically, to a super-heat dissipative carbon fiber heat sink capable of super-heat dissipation by manufacturing carbon single fibers having a surface area much larger than that of a conventional aluminum heat sink into a carbon non-woven fabric.
일반적으로 전류를 가하면 빛을 발하는 반도체 소자인 발광 다이오드 혹은 빛나는 반도체라 불리는 LED(Light Emitting Diode)의 수명은, 사용 전류와 발광파장 그리고 방열성 등의 요인에 의해 크게 좌우되며, 가장 큰 요인으로는 열화현상이 있다.The lifespan of a light-emitting diode (LED), or luminous semiconductor, which is generally a semiconductor device that emits light when current is applied, is greatly affected by factors such as the current used, emission wavelength, and heat dissipation, and the biggest factor is deterioration.
이렇게 LED의 수명을 좌우하는 열화현상 요인으로는, LED를 구동시킴으로써 발생하는 직접적 요인과, 패키지와 모듈의 환경 요소에 의한 간접적 요인이 작용한다.The deterioration factors that affect the lifespan of LEDs include direct factors caused by driving the LEDs and indirect factors caused by environmental factors of the package and module.
그리고 LED 조명의 경우, 입력전력 대비 광출력은 약 15~20%이며, 나머지 에너지는 열로 변환된다.And for LED lighting, the light output is about 15-20% of the input power, and the remaining energy is converted into heat.
이때, 열에 의한 특성이 매우 빠르게 변화하여 LED 칩(chip) 자체의 발열에 의해서 광출력이 떨어지게 되고, 오랜 시간 LED를 이용하여 조명 및 통신을 사용할 경우, 소자의 온도가 올라가서 효율이 저하되는 문제가 발생한다.At this time, the characteristics due to heat change very quickly, causing the light output to drop due to the heat generation of the LED chip itself, and when using the LED for lighting and communication for a long time, the temperature of the element rises, causing a problem in which the efficiency decreases.
또한, LED 소자는 정션 온도(Junction Temperature) 또는 발열 온도에 따라 LED 소자의 광도(Luminous Intensity)가 달라지며, LED 소자의 사용 시간의 증가로 인해 발열 온도가 증가하고, 이러한 발열 온도의 증가로 인해 LED 소자의 광도는 감소하게 된다.In addition, the luminous intensity of the LED element varies depending on the junction temperature or heating temperature, and as the usage time of the LED element increases, the heating temperature increases, and as this heating temperature increases, the luminous intensity of the LED element decreases.
이에 따라 LED 소자가 부착된 모듈에서 열을 빠르게 확산(또는 방출)시킬 수 있는 방열시스템은 중요하다.Accordingly, a heat dissipation system that can quickly dissipate (or release) heat from a module with LED elements attached is important.
한편, 일반적으로 비표면적이 높을수록 열 확산에 유리하며, 높은 열전도도를 얻을 수 있다.Meanwhile, in general, the higher the specific surface area, the more advantageous it is for heat diffusion, and higher thermal conductivity can be obtained.
따라서 후술하는 본 발명은, 종래의 범용 방열판(heat sink)의 비표면적보다 높은 비표면적을 가지는 탄소 단섬유를 부직포로 제작하여 초방열이 가능한 히트싱크에 관한 것이다.Therefore, the present invention, which will be described later, relates to a heat sink capable of super heat dissipation by manufacturing carbon fibers having a higher specific surface area than that of conventional general-purpose heat sinks as a non-woven fabric.
이와 같이, 부직포 방열판은, 종래의 범용 방열판에 비해 두께가 얇기 때문에 적용되는 제품의 경량화와 슬림화의 장점도 가지게 된다.In this way, since the non-woven heat sink is thinner than conventional general-purpose heat sinks, it also has the advantage of making the product to which it is applied lighter and slimmer.
본 발명은 상기와 같은 문제점을 해결하기 위하여 창출된 것으로서, 범용 방열판의 비표면적보다 높은 비표면적을 가지는 탄소 단섬유를 부직포로 제작하여 초방열이 가능하도록 한 초방열 탄소섬유 히트싱크를 제공하는데 그 목적이 있다.The present invention was created to solve the above problems, and its purpose is to provide a super heat-dissipating carbon fiber heat sink that enables super heat dissipation by manufacturing carbon single fibers having a higher specific surface area than that of a general-purpose heat sink into a non-woven fabric.
상기와 같은 목적을 달성하기 위한 본 발명의 초방열 탄소섬유 히트싱크는, In order to achieve the above purpose, the super heat-dissipating carbon fiber heat sink of the present invention is
탄소단섬유가 제조된 부직포로 이루어지되,It is made of non-woven fabric manufactured from carbon fibers,
상기 탄소단섬유는, 100㎤ 부피 내에 3.6×
본 발명에 있어서, 상기 탄소단섬유의 직경은 10um이고, 길이는 l~2.5cm이다.In the present invention, the diameter of the carbon fiber is 10 um and the length is 1 to 2.5 cm.
본 발명에 있어서, 상기 부직포로 이루어진 초방열 히트싱크는, 알루미늄 히트싱크에 비해 비표면적이 3,100배 크다.In the present invention, the ultra-heat-dissipating heat sink made of the non-woven fabric has a specific surface area that is 3,100 times larger than that of an aluminum heat sink.
본 발명에 있어서, 상기 부직포의 적어도 일면에는 소정의 점접착제가 구비되고, 상기 점접착제는 코팅에 의해 구비되며, 상기 접접착제는 아크릴계 및 우레탄계 접착제 중 어느 하나로 이루어진다.In the present invention, at least one side of the nonwoven fabric is provided with a predetermined adhesive, the adhesive is provided by coating, and the adhesive is made of either an acrylic or urethane adhesive.
본 발명에 있어서, 상기 아크릴계 점접착제 또는 우레탄계 점접착제에는 소정의 금속 페이스트가 포함되고, 상기 금속 페이스트는, 금, 은, 구리 니켈, 탄소나노튜브(CNT) 및 PEDOT:PSS 중 어느 하나로 이루어진다.In the present invention, the acrylic adhesive or urethane adhesive contains a predetermined metal paste, and the metal paste is made of one of gold, silver, copper nickel, carbon nanotubes (CNT), and PEDOT:PSS.
본 발명의 실시예에 따르면, 탄소 단섬유를 이용하여 탄소 부직포로 제조하여 범용 방열판의 비표면적보다 3,100배나 높은 비표면적이 구비되므로, 기존 범용 방열판(heat sink)에 비해 두께가 얇게 제조할 수 있다.According to an embodiment of the present invention, since a carbon non-woven fabric is manufactured using carbon single fibers and has a specific surface area 3,100 times higher than that of a general-purpose heat sink, the heat sink can be manufactured with a thinner thickness than an existing general-purpose heat sink.
따라서 방열판의 경량화와 슬림화가 가능하다.Therefore, it is possible to make the heat sink lighter and slimmer.
그리고 방열판이 탄소부직포로 이루어지므로, 단독으로도 사용이 가능하고, 기존 금속(알루미늄) 방열판에 붙여서 사용할 수도 있으며, 원하는 모양이나 크기로 잘라서(cutting) 사용할 수도 있다.And since the heat sink is made of carbon non-woven fabric, it can be used alone, attached to an existing metal (aluminum) heat sink, or cut to a desired shape or size.
또한, 탄소 부직포의 일면에 점접착제가 구비되되, 이 점접착제를 점접착 베이스 소재에 금속 페이스트로 조성함으로써, 기존 탄소섬유 습식부직포 대비 전도성이 매우 우수하다.In addition, since a pressure-sensitive adhesive is provided on one side of the carbon nonwoven fabric, and this pressure-sensitive adhesive is formed as a metal paste on a pressure-sensitive adhesive base material, the conductivity is very excellent compared to existing carbon fiber wet nonwoven fabrics.
도 1은 본 발명에 따른 초방열 탄소섬유 히트싱크의 구성을 종래의 히트싱크와 비교하여 나타낸 사시도.
도 2의 (a) 및 (b)는 탄소방열판의 일부에 탄소부직포를 부착하여 플루크 열화상 카메라를 이용하여 온도를 측정한 사진.
도 3의 (a), (b) 및 (c)는 휴대형 면저항 측정기를 이용하여 본 발명에 따른 초방열 탄소섬유 히트싱크의 면저항을 측정한 사진.Figure 1 is a perspective view showing the configuration of a super heat-dissipating carbon fiber heat sink according to the present invention compared to a conventional heat sink.
Figures 2 (a) and (b) are photographs showing the temperature measured using a Fluke thermal imaging camera by attaching a carbon non-woven fabric to a part of a carbon heat sink.
Figures 3 (a), (b), and (c) are photographs showing the surface resistance of a super heat-dissipating carbon fiber heat sink according to the present invention measured using a portable surface resistance meter.
이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.
도 1에는 본 발명에 따른 초방열 탄소섬유 히트싱크의 구성을 종래의 히트싱크와 비교하여 나타낸 사시도가 도시되어 있다.FIG. 1 is a perspective view showing the configuration of a super heat-dissipating carbon fiber heat sink according to the present invention compared to a conventional heat sink.
도 1을 참조하면, 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는, 탄소단섬유(11)를 제조한 탄소 부직포(10a)로 이루어진다.Referring to Fig. 1, the ultra-heat-dissipating carbon fiber heat sink (10) according to the present invention is made of a carbon non-woven fabric (10a) manufactured from carbon short fibers (11).
그리고 상기 탄소단섬유(11)는, 100㎤ 부피 내에 3.6×
이러한 탄소단섬유(11)의 직경은 10um이고, 그 길이는 l~2.5cm이다.The diameter of these carbon fibers (11) is 10 um and their length is 1 to 2.5 cm.
이에 따라 도 1의 (b)와 같이, 탄소 부직포(10a)로 이루어진 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는, 도 1의 (a)와 같은 일반적인 알루미늄 히트싱크(1)에 비해, 비표면적이 3,100배 크다.Accordingly, as shown in (b) of Fig. 1, the ultra-heat-dissipating carbon fiber heat sink (10) according to the present invention made of carbon non-woven fabric (10a) has a specific surface area that is 3,100 times larger than that of a general aluminum heat sink (1) as shown in (a) of Fig. 1.
또한, 도 1의 (b)에 도시된 바와 같이, 상기 탄소 부직포(10a)의 적어도 일면에는 소정의 점접착제(13)가 구비된다.In addition, as shown in (b) of Fig. 1, a predetermined adhesive (13) is provided on at least one side of the carbon nonwoven fabric (10a).
이러한 점접착제(13)는, 코팅(예컨대, 나이프 또는 딥코팅 또는 콤마코팅 등)에 의해 구비될 수 있으며, 아크릴계 및 우레탄계 접착제 중 어느 하나로 이루어진다.This adhesive (13) can be provided by coating (e.g., knife or dip coating or comma coating, etc.) and is made of either an acrylic or urethane adhesive.
그리고 상기 아크릴계 점접착제 또는 우레탄계 점접착제에는 소정의 금속 페이스트가 포함된다.And the acrylic adhesive or urethane adhesive contains a predetermined metal paste.
또한, 상기 금속 페이스트는, 금, 은, 구리 니켈, 탄소나노튜브(CNT) 및 PEDOT : PSS 중 어느 하나로 이루어진다.Additionally, the metal paste is made of one of gold, silver, copper nickel, carbon nanotubes (CNT), and PEDOT:PSS.
특히, 상기 탄소나노튜브(CNT, Carbon Nanotube)는, 전기와 열의 전도율이 구리 및 다이아몬드와 동일하고, 강도는 철강의 100배에 달하는 차세대 신소재로, 탄소섬유는 1％만 변형시켜도 끊어지는 반면, 탄소나노튜브는 15％가 변형되어도 견딜 수 있다. In particular, the carbon nanotube (CNT) is a next-generation new material with the same electrical and thermal conductivity as copper and diamond, and a strength 100 times that of steel. While carbon fibers break even when deformed by only 1%, carbon nanotubes can withstand even 15% deformation.
이러한 특성 때문에 탄소나노튜브는 전기차 배터리, 반도체, 자동차 부품, 항공기 동체 등에 쓰이고 있다.Because of these properties, carbon nanotubes are used in electric vehicle batteries, semiconductors, automobile parts, and aircraft fuselages.
그리고 상기 PEDOT:PSS에 대해 설명하면, PEDOT : PSS (poly(3,4-ethylene-dioxythiophene) : polystyrene sulfonate)는 우수한 내열성, 높은 전기 전도도와 투명도 및 용액공정 가능성이라는 장점들이 있다.And regarding the above PEDOT:PSS, PEDOT:PSS (poly(3,4-ethylene-dioxythiophene) : polystyrene sulfonate) has the advantages of excellent heat resistance, high electrical conductivity and transparency, and solution processability.
이러한 PEDOT : PSS는 양전하(+)를 띄는 PEDOT과 음전하(-)를 띄는 PSS가 전하로 구성된 복합체로, PSS 사슬에 PEDOT 사슬이 결합되어 서로 얽힌 겔 형태로 수용액상에 분산된다. These PEDOT: PSS are complexes composed of positively charged (+) PEDOT and negatively charged (-) PSS, and are dispersed in an aqueous solution in the form of a gel in which PEDOT chains are bonded to PSS chains and entangled with each other.
또한, PEDOT : PSS는 높은 화학 안정성을 가지며 롤투롤(roll-to-roll)과 같은 습식 코팅 공정이 적용 가능하기 때문에, 균일한 박막을 경제적으로 대량생산할 수 있다. In addition, PEDOT:PSS has high chemical stability and can be applied to wet coating processes such as roll-to-roll, so uniform thin films can be mass-produced economically.
그리고 PEDOT : PSS의 전기적 특성은 박막의 모폴로지(morphology) 또는 화학적 물리적 처리에 따라 조절 가능하고, 최근 들어 PEDOT : PSS의 전기 전도도를 다양한 방법으로 높이고 있다.And the electrical properties of PEDOT:PSS can be controlled by the morphology or chemical and physical treatment of the thin film, and recently, the electrical conductivity of PEDOT:PSS has been increased by various methods.
상기한 바와 같은 구성을 갖는 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는, 도 1에 도시된 바와 같이, 직경이 10um이고, 그 길이가 l~2.5cm의 탄소단섬유를 이용하여 탄소부직포(10a)로 제조한 것으로, 이 탄소부직포(10a)는 100㎤ 내에 3.6×
또한, 탄소 부직포(10a)로 제작 시 기존의 범용 방열판(heat sink)에 비해 두께가 얇기 때문에 최종 제품의 경량화와 슬림화의 장점을 가지게 된다.In addition, since it is thinner than the existing general-purpose heat sink when manufactured with carbon non-woven fabric (10a), it has the advantage of making the final product lighter and slimmer.
그리고 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는, 탄소 부직포(10a)로 이루어져 있어, 단독으로 사용이 가능하고, 기존 금속(알루미늄) 방열판에 붙여서 사용도 가능하고, 원하는 모양으로 잘라서(cutting)하여 사용할 수 있다.And the super heat-radiating carbon fiber heat sink (10) according to the present invention is made of carbon non-woven fabric (10a), so it can be used alone, can be used by attaching it to an existing metal (aluminum) heat sink, and can be used by cutting it into a desired shape.
그리고 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는, 일면에 점접착제(13)가 구비됨으로써, 사용 디바이스의 형태 또는 모양에 따라 재단(cutting)이 가능하여, 상기 사용 디바이스에 접착이 용이하고, 사용 또한 편리하다.And, since the ultra-heat-dissipating carbon fiber heat sink (10) according to the present invention is provided with a point-of-contact adhesive (13) on one side, it can be cut according to the shape or form of the device to be used, so that it is easy to adhere to the device to be used and is also convenient to use.
또한, 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는, 섬유장 길이 및 평량 조절을 통해 열발산이 가능하고, 비표면적 설계도 가능하다.In addition, the ultra-heat-dissipating carbon fiber heat sink (10) according to the present invention can dissipate heat by controlling the fiber length and basis weight, and can also design the specific surface area.
그리고 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는, 탄소섬유 방열판의 전기저항 성능 유지 및 향상이 가능함과 동시에 점접착 성능이 이루어질 수 있도록 상기 점접착제(13)는, 아크릴계 또는 우레탄계 점접착 베이스 소재에 금, 은, 구리, 니켈, CNT 등의 금속 페이스트를 사용하였다.And, in order to enable the super heat-dissipating carbon fiber heat sink (10) according to the present invention to maintain and improve the electrical resistance performance of the carbon fiber heat sink and at the same time achieve adhesive performance, the adhesive (13) uses a metal paste such as gold, silver, copper, nickel, or CNT on an acrylic or urethane adhesive base material.
이와 같이, 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는, 금속 페이스트의 사용으로 기존 탄소섬유 습식부직포 대비 전도성이 매우 우수하다.In this way, the ultra-heat-dissipating carbon fiber heat sink (10) according to the present invention has excellent conductivity compared to existing carbon fiber wet nonwoven fabrics due to the use of metal paste.
한편, 도 2의 (a) 및 (b)는 탄소방열판(20)의 일부에 상기 탄소부직포(10a)를 부착하여 플루크(Fluke) 열화상 카메라를 이용하여 온도를 측정한 사진으로, 측정 결과, 상기 탄소부직포(10a)의 부착 부위와 부착하지 않은 부위의 온도차(77.3℃와 78.5℃→ 57.5℃와 57.2℃)가 발생하였다.Meanwhile, (a) and (b) of FIG. 2 are photographs showing the temperature measured using a Fluke thermal imaging camera by attaching the carbon nonwoven fabric (10a) to a part of a carbon heat sink (20). As a result of the measurement, a temperature difference (77.3°C and 78.5°C → 57.5°C and 57.2°C) occurred between the attached and unattached portions of the carbon nonwoven fabric (10a).
따라서 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는, 방열 효과가 매우 우수함을 확인할 수 있었다.Therefore, it was confirmed that the ultra-heat-dissipating carbon fiber heat sink (10) according to the present invention has an excellent heat dissipation effect.
그리고 도 3의 (a), (b) 및 (c)는 휴대형 면저항 측정기(Sheet Resistance Meter)를 이용하여, 본 발명에 따른 초방열 탄소섬유 히트싱크(10)의 면저항을 측정한 사진으로, 상기 초방열 탄소섬유 히트싱크(10)는 면저항(Ω/□)의 편차가 매우 작음을 확인할 수 있었다.And Figures 3 (a), (b) and (c) are photographs showing the measurement of the sheet resistance of the super heat-radiating carbon fiber heat sink (10) according to the present invention using a portable sheet resistance meter, and it was confirmed that the deviation of the sheet resistance (Ω/□) of the super heat-radiating carbon fiber heat sink (10) is very small.
따라서 본 발명에 따른 초방열 탄소섬유 히트싱크(10)는 균일하게 탄소부직포(10a)와 점접착제(13)가 구성되게 제조가 가능하며, 제품 신뢰성이 있음을 알 수 있다.Therefore, it can be seen that the super heat-radiating carbon fiber heat sink (10) according to the present invention can be manufactured by uniformly configuring the carbon non-woven fabric (10a) and the adhesive (13), and that the product is reliable.
상술한 바와 같이 본 발명은 도면에 도시된 일 실시예를 참고로 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 실시예가 가능하다는 점을 이해할 것이다.As described above, the present invention has been described with reference to one embodiment shown in the drawings, but this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent embodiments are possible therefrom.
따라서 본 발명의 진정한 보호 범위는 첨부된 청구범위에 의해서만 정해져야 할 것이다.Therefore, the true scope of protection of the present invention should be defined solely by the appended claims.
1. 알루미늄 히트싱크
10. 초방열 탄소섬유 히트싱크
10a. 탄소 부직포
11. 탄소단섬유
13. 점접착제1. Aluminum heatsink
10. Ultra-heat-resistant carbon fiber heatsink
10a. Carbon non-woven fabric
11. Carbon fiber
13. Adhesive
Claims (8)
상기 탄소단섬유는, 100㎤ 부피 내에 3.6×
The above carbon fibers have a volume of 3.6× 100㎤
상기 탄소단섬유의 직경은 10um이고, 길이는 l~2.5cm인 것을 특징으로 하는 초방열 탄소섬유 히트싱크.In the first paragraph,
A super heat-dissipating carbon fiber heat sink characterized in that the diameter of the carbon fiber is 10 um and the length is 1 to 2.5 cm.
상기 탄소 부직포로 이루어진 초방열 히트싱크는, 알루미늄 히트싱크에 비해 비표면적이 3,100배 큰 것을 특징으로 하는 초방열 탄소섬유 히트싱크.In the first paragraph,
The super heat-dissipating heat sink made of the above carbon non-woven fabric is a super heat-dissipating carbon fiber heat sink characterized by a specific surface area that is 3,100 times larger than that of an aluminum heat sink.
상기 탄소 부직포의 적어도 일면에는 소정의 점접착제가 구비된 것을 특징으로 하는 초방열 탄소섬유 히트싱크.In the first paragraph,
A super heat-dissipating carbon fiber heat sink characterized in that at least one side of the carbon non-woven fabric is provided with a predetermined adhesive.
상기 점접착제는 코팅에 의해 구비된 것을 특징으로 하는 초방열 탄소섬유 히트싱크.In paragraph 4,
A super heat-dissipating carbon fiber heat sink characterized in that the above-mentioned adhesive is provided by coating.
상기 접접착제는, 아크릴계 및 우레탄계 접착제 중 어느 하나로 이루어진 것을 특징으로 하는 초방열 탄소섬유 히트싱크.In paragraph 4,
A super heat-dissipating carbon fiber heat sink characterized in that the above adhesive is made of either an acrylic or urethane adhesive.
상기 아크릴계 점접착제 또는 우레탄계 점접착제에는 소정의 금속 페이스트가 포함된 것을 특징으로 하는 초방열 탄소섬유 히트싱크.In Article 6,
A super heat-dissipating carbon fiber heat sink characterized in that the acrylic adhesive or urethane adhesive contains a predetermined metal paste.
상기 금속 페이스트는, 금, 은, 구리 니켈, 탄소나노튜브(CNT) 및 PEDOT:PSS 중 어느 하나로 이루어진 것을 특징으로 하는 초방열 탄소섬유 히트싱크.In Article 7,
A super heat-dissipating carbon fiber heat sink characterized in that the metal paste is made of any one of gold, silver, copper nickel, carbon nanotubes (CNT), and PEDOT:PSS.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050093959A (en) | 2004-03-17 | 2005-09-26 | 티티엠주식회사 | Heat pipe using carbon nano particles |
| KR100607049B1 (en) | 1998-06-08 | 2006-08-01 | 유티-배틀레, 엘엘씨 | Pitch-Based Carbon Foam Heat Sink with Phase Change Material |
| KR20100056893A (en) | 2008-11-20 | 2010-05-28 | 최종성 | Heat exchanger using carbon fiber heating element and hot blast heater using thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100607049B1 (en) | 1998-06-08 | 2006-08-01 | 유티-배틀레, 엘엘씨 | Pitch-Based Carbon Foam Heat Sink with Phase Change Material |
| KR20050093959A (en) | 2004-03-17 | 2005-09-26 | 티티엠주식회사 | Heat pipe using carbon nano particles |
| KR20100056893A (en) | 2008-11-20 | 2010-05-28 | 최종성 | Heat exchanger using carbon fiber heating element and hot blast heater using thereof |
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