KR20220003724A - Water-cooled, fast-charging cables using heat pipes - Google Patents

Water-cooled, fast-charging cables using heat pipes Download PDF

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KR20220003724A
KR20220003724A KR1020200081294A KR20200081294A KR20220003724A KR 20220003724 A KR20220003724 A KR 20220003724A KR 1020200081294 A KR1020200081294 A KR 1020200081294A KR 20200081294 A KR20200081294 A KR 20200081294A KR 20220003724 A KR20220003724 A KR 20220003724A
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South Korea
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pipe
cooling fluid
heat
water
heat pipe
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KR1020200081294A
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Korean (ko)
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KR102418692B1 (en
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정민교
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대영채비(주)
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Priority to KR1020200081294A priority Critical patent/KR102418692B1/en
Priority to PCT/KR2020/011476 priority patent/WO2022004942A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • H01B7/426—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using cooling fins, ribs

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Insulated Conductors (AREA)

Abstract

A water cooling type fast charging cable using heat pipes according to the present invention comprises: a conductive wire (140) provided with a plurality of wires in a dense form; an outer shell (130) provided in a form of covering the conductive wire (140), and made of a material having insulation and flexibility; a protection pipe (120) made of a material that can be bent and provided at a predetermined interval from the outer shell (130) so as to form a flow path (P) through which a cooling fluid flows; and a cooling fluid inlet pipe (110a) and a cooling fluid outlet pipe (110b) provided on one side and the other side of the protection pipe (120) so as to introduce and discharge the cooling fluid into and from the flow path (P), wherein the flow path (P) is provided with a vortex forming plate (111) on which a plurality of through holes (112) are formed, and an inclined plate (112a) inclined toward the center is provided on an inner wall surface of each through hole (112) formed on the vortex forming plate (111), and a water cooling type heat exchanger (200) connected to the cooling fluid inlet pipe (110a) and the cooling fluid outlet pipe (110b) is provided. The present invention can efficiently cool the heat generated from a large capacity cable.

Description

히트파이프를 이용한 수냉식 급속 충전용 케이블 {Water-cooled, fast-charging cables using heat pipes}Water-cooled, fast-charging cables using heat pipes}

본 발명은 전기자동차 충전용 케이블에 관한 것으로서, 구체적으로는 전기자동차의 급속 충전시 충전용 케이블에서 발생되는 열을 효율적으로 냉각시킴으로서, 열에 의한 내부 구성의 손상을 방지하는 히트파이프를 이용한 수냉식 급속 충전용 케이블에 관한 것이다.The present invention relates to a charging cable for an electric vehicle, and more specifically, water-cooled rapid charging using a heat pipe that effectively cools the heat generated from the charging cable during rapid charging of an electric vehicle, thereby preventing damage to the internal configuration due to heat. It's about cables.

글로벌 선진국을 필두로 배출가스, 연비, 이산화탄소 등의 자동차 규제가 강화되고 있는데, 미국은, 2017년부터 생산되는 승용차와 경트럭에 매년 약 5%의 연비 개선을 요구하고 있으며, 유럽은, 2020년까지 온실가스 배출을 규제하고, 초과 g당 5 ~ 95 유로의 누적된 벌금을 부과할 예정이며, 중국 또한 미국보다 엄격한 규제를 할 예정으로서, 이산화탄소 규제를 3단계로 정하여 단계적으로 강화하고 미달성시 자동차의 생산 및 판매를 금지할 계획을 가지고 있는 등 자동차의 배기가스에 대한 규제가 강화되고 있다.Car regulations such as emissions, fuel efficiency, and carbon dioxide are being strengthened in advanced countries in the world, and the United States is requesting a fuel efficiency improvement of about 5% every year for passenger cars and light trucks produced from 2017, and Europe, by 2020, GHG emissions will be regulated, and accumulated fines of 5 to 95 euros per gram in excess will be imposed. China also plans to impose stricter regulations than the United States. Regulations on automobile exhaust gas are being strengthened, with plans to ban production and sales.

이에 따라 전기차의 개발이 활성화 되고 있는데, 전기차의 1회 충전으로 300Km 이상의 주행거리를 확보하려면 배터리의 용량이 증가하게 되고, 400Kw급 급속충전케이블이 필요하며, 이와 같은 급속 충전기는 출력 전류가 300A 이상이어서, 이를 전기차로 전달하는 충전용 케이블의 발열이 문제가 된다. Accordingly, the development of electric vehicles is being promoted. To secure a driving distance of 300Km or more with a single charge of an electric vehicle, the capacity of the battery increases, and a 400Kw class fast charging cable is required. Subsequently, heat generation of the charging cable that transmits it to the electric vehicle becomes a problem.

도 1은 종래 전기자동차와 충전기의 상태도이다.1 is a state diagram of a conventional electric vehicle and a charger.

도시된 바와 같이, 전기자동차 충전기(300)는 전기자동차로의 전력 공급을 위하여 충전기 커넥터(200)와 전기자동차 충전용 케이블(100)로 연결되며, 전기자동차 충전용 케이블(100)의 단부에는 충전기 커넥터(200)가 구비된다.As shown, the electric vehicle charger 300 is connected to the charger connector 200 and the electric vehicle charging cable 100 in order to supply power to the electric vehicle, and at the end of the electric vehicle charging cable 100, the charger A connector 200 is provided.

충전기 커넥터(200)는 전기자동차(ev)에 구비된 전기차 커넥터(400)에 장착되어 전력을 공급할 수 있고, 급속 충전기의 경우 20분 내지 30분 만에 전기차의 충전을 완료할 수 있다. The charger connector 200 may be mounted on the electric vehicle connector 400 provided in the electric vehicle ev to supply power, and in the case of a quick charger, the electric vehicle may be charged in 20 to 30 minutes.

이와 같은 종래의 전기차 충전기(300)와 전기자동차(ev)를 전기적으로 연결하는 전기차 충전용 케이블(100)은 충전용량의 증가하여 케이블에서 발열량이 증가하는 문제점이 있었다.The conventional electric vehicle charging cable 100 for electrically connecting the electric vehicle charger 300 and the electric vehicle ev has a problem in that the amount of heat generated in the cable increases due to an increase in charging capacity.

등록특허공보 제10-1644791호(2016.08.10.공고)Registered Patent Publication No. 10-1644791 (2016.08.10. Announcement)

본 발명은 상기의 문제점을 해결하고자 하는 것으로서, 대용량의 케이블에서 발생하는 열을 효율적으로 냉각시킬 수 있는 히트파이프를 이용한 수냉식 급속 충전용 케이블을 제공하고자 함이다.An object of the present invention is to solve the above problems, and to provide a water-cooled quick-charging cable using a heat pipe that can efficiently cool heat generated from a large-capacity cable.

본 발명 히트파이프를 이용한 수냉식 급속 충전용 케이블은, 다수의 와이어가 밀집된 형상으로 구비된 도선, 도선을 피복하는 형태로 구비되며, 절연 및 유연성을 가지는 재질로 형성된 외피, 절곡이 가능한 재질로 이루어지며, 외피와 일정한 간격을 가지고 구비되어, 냉각유체가 흐르는 유로를 형성하는 보호관, 보호관의 일측과 타측에 구비되며, 냉각유체를 유로에 유입시키고 배출시키는 냉각유체유입관 및 냉각유체배출관을 포함하되; 유로에는 다수의 통공이 형성된 와류형성판이 구비되고, 와류형성판에 형성된 통공의 내벽면에는 중심부를 향하여 경사진 경사판이 구비되고, 냉각유체유입관 및 냉각유체배출관과 연결된 수냉식 열교환기가 구비된 것을 특징으로 한다.The water-cooled quick-charging cable using the heat pipe of the present invention is provided in the form of covering the conducting wire and the conducting wire provided in a dense shape with a plurality of wires. , a protective tube provided at a predetermined distance from the outer shell to form a flow path through which the cooling fluid flows, provided on one side and the other side of the protection pipe, and a cooling fluid inlet pipe and a cooling fluid outlet pipe for introducing and discharging the cooling fluid into the flow path; The flow path is provided with a vortex forming plate having a plurality of through holes, the inner wall surface of the through holes formed in the vortex forming plate is provided with an inclined plate inclined toward the center, and a water-cooled heat exchanger connected to a cooling fluid inlet pipe and a cooling fluid outlet pipe is provided. do it with

또한, 수냉식 열교환기는, 중공의 원통형 구조를 가지며, 일측에는 냉각유체 배출관이 연결되고, 타측에는 냉각유체 유입관이 연결되며, 내부에는 격벽이 형성되고, 격벽에는 관통공이 구비된 하우징과, 하우징의 내부에 구비된 격벽의 관통공에 끼움, 결합된 히트파이프를 포함하는 것을 특징으로 한다.In addition, the water-cooled heat exchanger has a hollow cylindrical structure, a cooling fluid discharge pipe is connected to one side, and a cooling fluid inflow pipe is connected to the other side, a partition is formed inside, and a housing having a through hole in the partition wall; It is characterized in that it includes a heat pipe fitted and coupled to the through hole of the partition wall provided therein.

또한, 히트파이프의 외면에 돌출된 중공관의 구조를 가지며, 내부에는 상변화물질이 내장된 방열세관이 더 구비된 것을 특징으로 한다.In addition, it has a structure of a hollow tube protruding from the outer surface of the heat pipe, and is characterized in that the heat dissipation tube having a phase change material embedded therein is further provided.

또한, 방열세관은, 히트파이프의 외경보다 큰 원 또는 타원을 이루며 히트파이프의 외주연을 감싸게 되는 나선형상이나, 히트파이프의 길이방향으로 진행하게 되는 지그재그형상으로 구비된 것을 특징으로 한다.In addition, the heat dissipation tube is characterized in that it is provided in a spiral shape that forms a circle or an ellipse larger than the outer diameter of the heat pipe and surrounds the outer periphery of the heat pipe, or is provided in a zigzag shape that proceeds in the longitudinal direction of the heat pipe.

또한, 히트파이프는, 제1나선부, 제2나선부를 포함하되; 제1나선부는, 외경을 제2나선부의 직경보다 크게 형성되고, 제1나선부와 제2나선부는 히프파이프의 길이 방향을 따라 일정 간격 상호 교차 배열된 것을 특징으로 한다.In addition, the heat pipe includes a first spiral portion and a second spiral portion; The first spiral portion is formed to have an outer diameter larger than the diameter of the second spiral portion, and the first spiral portion and the second spiral portion are arranged to cross each other at regular intervals along the length direction of the bottom pipe.

본 발명은 대용량의 케이블에서 발생하는 열을 효율적으로 냉각시키는 효과가 있다.The present invention has an effect of efficiently cooling heat generated from a large-capacity cable.

또한, 케이블의 외곽에 방열을 위한 수냉식 열교환기가 존재하므로, 강제냉각으로 케이블의 사이즈를 줄일 수 있는 효과가 있다.In addition, since there is a water-cooled heat exchanger for heat dissipation on the outside of the cable, there is an effect that the size of the cable can be reduced by forced cooling.

또한, 히트파이프의 외주면 면적이 넓어짐으로써, 하우징에 흐르는 공기와의 열교환되는 면적이 증가되어 열교환 효율을 높이는 효과가 있다.In addition, since the area of the outer peripheral surface of the heat pipe is increased, an area exchanged with air flowing through the housing is increased, thereby increasing heat exchange efficiency.

도 1은 종래 전기자동차와 충전기의 상태도.
도 2는 본 발명 수냉식 급속 충전용케이블의 종단면도.
도 3은 수냉식 급속 충전용케이블의 횡단면도 및 부분확대사시도.
도 4는 수냉식 열교환기의 단면도.
도 5는 히트파이프 실시 예의 확대정면도.
도 6은 방열세관의 확대단면도.
도 7은 히프파이프의 다른 실시 예의 사시도.1 is a state diagram of a conventional electric vehicle and a charger.
Figure 2 is a longitudinal cross-sectional view of the present invention water-cooled fast charging cable.
3 is a cross-sectional view and a partially enlarged perspective view of a water-cooled fast charging cable.
4 is a cross-sectional view of a water-cooled heat exchanger;
5 is an enlarged front view of an embodiment of a heat pipe;
6 is an enlarged cross-sectional view of the heat dissipation tube.
7 is a perspective view of another embodiment of the bottom pipe.

본 발명의 바람직한 실시 예를 첨부된 도면을 참조하여 상세히 설명한다. 참고로, 본 발명을 설명하는데 참조하는 도면에 도시된 구성요소의 크기, 선의 두께 등은 이해의 편의상 다소 과장되게 표현되어 있을 수 있다. A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. For reference, sizes of components, thicknesses of lines, etc. shown in the drawings referenced to describe the present invention may be expressed somewhat exaggeratedly for convenience of understanding.

또, 본 발명의 설명에 사용되는 용어들은 본 발명에서의 기능을 고려하여 정의한 것이므로 사용자, 운용자 의도, 관례 등에 따라 달라질 수 있다. 따라서, 이 용어에 대한 정의는 본 명세서의 전반에 걸친 내용을 토대로 내리는 것이 마땅하다.In addition, the terms used in the description of the present invention are defined in consideration of the functions in the present invention, and thus may vary according to user, operator intention, custom, and the like. Therefore, the definition of this term should be made based on the content throughout the present specification.

그리고 본 출원에서, '포함하다', '가지다' 등의 용어는 명세서 상에 기재된 특정의 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것이 존재함을 지칭하는 것이지, 하나 또는 그 이상의 다른 특징이나 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 한다.And in the present application, terms such as 'comprise' and 'have' refer to the existence of specific numbers, steps, operations, components, parts, or combinations thereof described in the specification, but one or more other It is to be understood that this does not preclude the possibility of the presence or addition of features or numbers, steps, operations, components, parts, or combinations thereof.

또한, 본 발명은 이하에서 개시되는 실시 예에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시 예는 본 발명의 개시가 완전하도록 하며, 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이다.In addition, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only this embodiment allows the disclosure of the present invention to be complete, and the scope of the invention to those of ordinary skill in the art It is provided for complete information.

그러므로, 본 발명은 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있는바, 구현 예(態樣, aspect)(또는 실시 예)들을 명세서에 상세하게 설명하고자 한다. 그러나 이는 본 발명을 특정한 개시 형태에 대해 한정하려는 것이 아니며, 본 발명의 기술적 사상에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 하고, 본 명세서에서 사용한 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. Therefore, the present invention is to be described in detail in the specification, implementation examples (態樣, aspect) (or embodiments) can be applied to various changes and can have various forms. However, this is not intended to limit the present invention to a specific disclosed form, and it should be understood to include all changes, equivalents or substitutes included in the technical spirit of the present invention, and the expression in the singular used herein is clearly different from the context. Unless otherwise indicated, plural expressions are included.

다만, 본 발명을 설명함에 있어서, 주지 또는 공지된 기능 혹은 구성에 대한 구체적인 설명은 본 발명의 요지를 명료하게 하기 위하여 생략하기로 한다However, in describing the present invention, detailed descriptions of well-known or well-known functions or configurations will be omitted in order to clarify the gist of the present invention.

이하에서 본 발명의 구체적인 실시 예를 도면을 참고하여 설명한다.Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

도 2는 본 발명 급속 충전용케이블의 종단면도, 도 3은 본 발명 급속 충전용케이블의 횡단면도 및 부분확대사시도이다.Figure 2 is a longitudinal cross-sectional view of the present invention for fast charging cable, Figure 3 is a cross-sectional view and a partially enlarged perspective view of the present invention for fast charging cable.

도시된 바와 같이 본 발명 급속 충전용케이블(100)은 냉각유체유입관(110a), 냉각유체배출관(110b), 보호관(120), 외피(130), 도선(140)을 포함한다.As shown, the present invention fast charging cable 100 includes a cooling fluid inlet pipe 110a, a cooling fluid outlet pipe 110b, a protective pipe 120, an outer shell 130, and a conducting wire 140.

도선(140)은, 전기가 유통할 수 있는 재질로 이루어져 있으며, 다수의 와이어가 밀집된 형상으로 구비된다.The conducting wire 140 is made of a material through which electricity can flow, and is provided in a form in which a plurality of wires are densely formed.

외피(130)는, 도선(140)을 외부와 차단하여 전기가 누설되지 않게 하는 구성으로서, 도선을 피복하는 형태로 구비되며, 절연 및 유연성을 가지는 재질로 형성되어 있다.The outer shell 130 is configured to prevent electricity from leaking by blocking the conductive wire 140 from the outside, is provided in the form of covering the conductive wire, and is made of a material having insulation and flexibility.

보호관(120)은, 외피(130)와 일정한 간격을 가지고 구비되며, 외피(130)와 보호관(120) 사이의 공간은 냉각유체가 흐르는 유로(P)를 형성한다. 보호관의 재질은 절곡이 가능한 재질로 이루어져 있다.The protective tube 120 is provided with a predetermined interval from the outer shell 130, and the space between the outer shell 130 and the protective tube 120 forms a flow path P through which the cooling fluid flows. The material of the protective tube is made of a material that can be bent.

상기 보호관은 벨로우즈관의 형상, 즉 주름관의 형상으로 구비될 수 있음은 물론이다.Of course, the protective tube may be provided in the shape of a bellows tube, that is, a corrugated tube.

또한 냉각유체는 냉각수가 될 수도 있고, 부동액이 될 수도 있음은 물론이다.Also, of course, the cooling fluid may be cooling water or antifreeze.

상기 유로(P)에는 와류를 형성할 수 있도록, 다수의 통공(112)이 형성된 격판의 구조를 가지고 있는 와류형성판(111)이 구비되어 있다.A vortex forming plate 111 having a diaphragm structure in which a plurality of through holes 112 is formed is provided in the flow path P to form a vortex.

상기 와류형성판(111)은 외피(130)와 보호관(120) 사이에 간격을 유지시켜 유로(P)를 형성하는 기능을 가진다.The vortex forming plate 111 has a function of forming a flow path P by maintaining a gap between the outer shell 130 and the protective tube 120 .

또한, 와류형성판(111)에 형성된 통공(112)의 내벽면에는 중심부를 향하여 경사진 경사판(112a)이 다수개 형성되어 있으며, 경사판(112a)의 표면에는 안내홈이 균등한 간격으로 형성되어 있어, 통공(112)을 통과하는 냉각유체에 균일한 와류를 형성시킨다.In addition, a plurality of inclined plates 112a inclined toward the center are formed on the inner wall surface of the through holes 112 formed in the vortex forming plate 111, and guide grooves are formed at equal intervals on the surface of the inclined plate 112a. There, a uniform vortex is formed in the cooling fluid passing through the through hole 112 .

이와 같이 유로(P)의 내부로 흐르는 냉각유체는 통공(112)의 경사판(112a)에 가이드 되어, 냉각유체가 선회하는 와류패턴의 냉각유체 흐름을 발생시킨다. As such, the cooling fluid flowing into the flow path P is guided to the swash plate 112a of the through hole 112 to generate a cooling fluid flow in a vortex pattern in which the cooling fluid turns.

즉 냉각유체는 유로(P)의 내부에서 회전되는 것이므로, 도선(140)에서 발생되어 외피(130)로 전도된 열과 냉각유체가 접촉되어 온도가 높아진 냉각유체를 새로운 냉각유체로 신속하게 교체시킴으로써, 도선에서 발생하는 열을 신속하고, 효율적으로 냉각시키는 기능 및 효과를 가진다.That is, since the cooling fluid is rotated inside the flow path (P), the heat generated from the conductor (140) and conducted to the shell (130) and the cooling fluid come into contact with the cooling fluid, which has increased in temperature, by quickly replacing the cooling fluid with a new cooling fluid, It has the function and effect of rapidly and efficiently cooling the heat generated from the conducting wire.

냉각유체유입관(110a) 및 냉각유체배출관(110b)은, 보호관(120)의 일측과 타측에 구비되어 있으며, 도시하지 않은 펌프 등에 의하여 냉각유체를 유로(P)에 유입시키고 배출시키는 기능을 한다.The cooling fluid inlet pipe 110a and the cooling fluid outlet pipe 110b are provided on one side and the other side of the protection pipe 120, and serve to introduce and discharge the cooling fluid into the flow path P by a pump (not shown). .

위와 같은 구조를 갖는 급속 충전용케이블은 급속충전과 충전용량의 증가한 대용량 케이블에서 발생하는 열을 효율적으로 냉각시키는 기능 및 효과가 있다.The fast charging cable having the above structure has the function and effect of efficiently cooling the heat generated by the fast charging and high-capacity cable with increased charging capacity.

이하에서는 케이블 내부를 통과하면서 가온된 냉각유체를 케이블의 외부에서 열교환시켜 냉각시키는 수냉식 열교환기에 관하여 설명한다.Hereinafter, a water-cooled heat exchanger in which a cooling fluid heated while passing through the cable is heat-exchanged from the outside of the cable to be cooled will be described.

도 4는 수냉식 열교환기의 단면도, 도 5는 히트파이프 실시 예의 확대정면도, 도 6은 방열세관의 확대단면도이다.4 is a cross-sectional view of a water-cooled heat exchanger, FIG. 5 is an enlarged front view of an embodiment of a heat pipe, and FIG. 6 is an enlarged cross-sectional view of a heat dissipation tube.

도시된 바와 같이 냉각유체유입관(110a) 및 냉각유체배출관(110b)과 연결된 수냉식 열교환기(200)는, 하우징(210), 히트파이프(220), 방열세관(230)을 포함하고 있다.As shown, the water-cooled heat exchanger 200 connected to the cooling fluid inlet pipe 110a and the cooling fluid outlet pipe 110b includes a housing 210 , a heat pipe 220 , and a heat dissipation tube 230 .

하우징(210)은, 중공의 원통형 구조를 가지고 있으며, 하우징의 일측에는 케이블과 연결된 냉각유체 배출관(110b)이 연결되어 있고, 타측에는 냉각유체 유입관(110a)이 연결되어 있어, 케이블에서 열교환되어 가온된 냉각유체를 하우징에 유입 및 배출시킨다.The housing 210 has a hollow cylindrical structure, and a cooling fluid discharge pipe 110b connected to a cable is connected to one side of the housing, and a cooling fluid inlet pipe 110a is connected to the other side, so that heat exchange is performed in the cable. The heated cooling fluid flows into and out of the housing.

상기 하우징(210)의 내부에는 격벽(213)이 형성되어 있고, 격벽에는 관통공이 구비되어 있어, 후술하는 히트파이프(220)가 끼움, 결합되거나, 용접되어 있다.A partition wall 213 is formed inside the housing 210, and a through hole is provided in the partition wall, so that a heat pipe 220 to be described later is fitted, coupled, or welded thereto.

또한, 하우징(210)의 하부에는 유입구(211)가 형성되어 있고, 상부에는 배출구(212)가 구비되어 있어, 외부에 설치된 송풍기에서 송풍되는 공기를 유입 및 배출하는 기능을 한다.In addition, the inlet 211 is formed in the lower part of the housing 210, and the outlet 212 is provided in the upper part, and serves to introduce and discharge the air blown by the blower installed outside.

히트파이프(220)는, 하우징(210)의 내부에 구비된 격벽(213)의 관통공에 끼움, 결합되거나, 용접되어 있어, 냉각유체가 통과하면서, 열교환되어 냉각유체를 냉각시키는 기능을 한다.The heat pipe 220 is fitted, coupled, or welded to the through-hole of the partition wall 213 provided in the housing 210, and functions to cool the cooling fluid by heat exchange while the cooling fluid passes.

상기의 히프파이프의 재질은 열전도율이 높은 동관 또는 강관으로 이루어져 있음은 물론이다.Of course, the material of the bottom pipe is made of a copper pipe or a steel pipe having high thermal conductivity.

방열세관(230)은, 히트파이프(220)의 외면에 돌출된 중공관의 구조를 가지고 있으며, 방열세관의 내부에는 상변화물질이 내장되어 있어, 히트파이프(220)로부터 전달된 열을 열교환시켜 냉각효율을 향상시키는 기능을 한다.The heat dissipation tube 230 has a structure of a hollow tube protruding from the outer surface of the heat pipe 220 , and a phase change material is embedded in the heat dissipation tube 220 to exchange heat transferred from the heat pipe 220 . It improves cooling efficiency.

상기 방열세관(230)은, 히트파이프(220)의 외경보다 큰 원 또는 타원을 이루며 히트파이프(220)의 외주연을 감싸게 되는 나선형상이나, 히트파이프(220)의 길이방향으로 진행하게 되는 지그재그형상으로 구비될 수 있음은 물론이다.The heat dissipation tube 230 forms a circle or ellipse larger than the outer diameter of the heat pipe 220 and has a spiral shape surrounding the outer periphery of the heat pipe 220 or a zigzag shape that proceeds in the longitudinal direction of the heat pipe 220 . Of course, it can be provided as

즉, 방열세관(230)이 부착된 히트파이프(220)에 의한 열교환 중에서 히트파이프(220)에 의한 열교환은 히트파이프(220)의 내부를 통과하게 되는 냉각유체와 히트파이프(220)의 외부를 통과하게 되는 공기 사이에 히트파이프(220)의 관벽을 매개로 하여 일어나는 열전도작용에 의해 이루어지게 되는 것이며, 히트파이프(220)의 외측에 설치된 방열세관(230)에 의한 열교환은 방열세관(230)의 내부에 내장된 상변화물질의 상변화 현상에 의하여 열교환되는 것이다.That is, in the heat exchange by the heat pipe 220 among the heat exchange by the heat pipe 220 to which the heat dissipation tube 230 is attached, the cooling fluid passing through the inside of the heat pipe 220 and the outside of the heat pipe 220 . It is made by a heat conduction action that occurs through the tube wall of the heat pipe 220 between the air passing through, and the heat exchange by the heat radiation tube 230 installed on the outside of the heat pipe 220 is the heat radiation tube 230 It is heat exchanged by the phase change phenomenon of the phase change material built into the

상변화물질은, 제올라이트(Zeolite) 또는 퍼라이트(Perlite)로 구성되는 군에서 선택되는 하나 이상의 물질이 캡슐에 충진되고, 상변화물질이 충진된 캡슐의 외부 표면이 실리카 고화재로 코팅된 것을 특징으로 하고 있다.The phase change material is characterized in that one or more materials selected from the group consisting of zeolite or perlite are filled in the capsule, and the outer surface of the capsule filled with the phase change material is coated with a silica solidifying material. are doing

상기의 상변화물질은, 내열성을 향상시키면서, 열전도성이 우수하므로, 열교환효율을 극대화할 수 있는 효과가 있다.Since the phase change material has excellent thermal conductivity while improving heat resistance, there is an effect of maximizing heat exchange efficiency.

이하에서는 히트파이프의 다른 실시 예에 관하여 설명한다.Hereinafter, another embodiment of the heat pipe will be described.

도 7은 히트파이프의 다른 실시 예의 사시도이다.7 is a perspective view of another embodiment of a heat pipe.

도시된 바와 같이 본 실시 예의 히트파이프(220)는 제1나선부(221), 제2나선부(222)를 포함하고 있다.As shown, the heat pipe 220 of this embodiment includes a first spiral portion 221 and a second spiral portion 222 .

제1나선부(221)는, 외경을 제2나선부(222)의 직경보다 크게 형성되어 있으며, 제1나선부(221)와 제2나선부(222)를 히프파이프(220)의 길이 방향을 따라 일정 간격 상호 교차 배열된다.The first spiral portion 221 has an outer diameter larger than the diameter of the second spiral portion 222 , and the first spiral portion 221 and the second spiral portion 222 are formed in the longitudinal direction of the bottom pipe 220 . They are arranged intersecting each other at regular intervals along the

이와 같이 히트파이프(220)에 제1나선부(221)와 제2나선부(222)가 교차 배열 형성됨으로써, 제1나선부(221)와 제2나선부(222) 사이에서 송풍기로부터 유입된 공기가 통과하면서 와류가 형성되고, 공기가 히트파이프(220) 외주면에 머물게 되는 시간이 늘어나게 되므로, 이로 인해 공기가 히트파이프(220)의 내부로 흐르는 냉각유체의 열을 충분히 흡수하여 냉각효율이 증가되는 효과가 발생되는 것이다.As described above, the first spiral portion 221 and the second spiral portion 222 are formed in a cross arrangement on the heat pipe 220 , so that the inflow from the blower is between the first spiral portion 221 and the second spiral portion 222 . As the air passes, a vortex is formed, and the time the air stays on the outer circumferential surface of the heat pipe 220 is increased, so that the air sufficiently absorbs the heat of the cooling fluid flowing into the heat pipe 220 to increase the cooling efficiency. effect will occur.

즉, 히트파이프(220)의 외주면에 외경이 다른 제1나선부(221)와 제2나선부(222)가 스크류 형태로 형성되어있고, 제1나선부(221)와 제2나선부(222)의 외경과 하우징(210)의 내측 사이에는 공간이 형성되기 때문에, 하우징(210)의 내부를 흐르는 공기는 히프파이프(220)의 제1나선부(221)와 제2나선부(222)를 따라 스크류 형태로 흐르기도 하지만, 공간을 따라 직선으로 흐르기도 한다.That is, the first spiral portion 221 and the second spiral portion 222 having different outer diameters are formed on the outer circumferential surface of the heat pipe 220 in the form of screws, and the first spiral portion 221 and the second spiral portion 222 are formed. Since a space is formed between the outer diameter of ) and the inner side of the housing 210 , the air flowing inside the housing 210 passes through the first spiral portion 221 and the second spiral portion 222 of the bottom pipe 220 . In some cases, it flows in the form of a screw, but it also flows in a straight line along the space.

이와 같이 직선으로 흐르는 공기는 제1나선부(221)와 제2나선부(222) 사이를 통과하면서 와류를 형성하게 되고, 이 와류에 의해 스크류 형태로 흐르는 공기의 흐름을 방해하게 되어, 결국 히트파이프(220) 외부를 흐르는 공기를 하우징의 내부에 오래 머무르게 하면서 흐르게 하여 냉각유체의 열을 더 많이 흡수할 수 있게 되는 것이다.As such, the air flowing in a straight line forms a vortex while passing between the first spiral part 221 and the second spiral part 222, and by this vortex, the flow of air flowing in a screw shape is obstructed, and eventually heat By allowing the air flowing outside the pipe 220 to flow while staying inside the housing for a long time, more heat of the cooling fluid can be absorbed.

또한, 제1나선부(221)와 제2나선부(222)에 의해 히트파이프(220)의 외주면 면적이 넓어짐으로써, 하우징(210)에 흐르는 공기와의 열교환되는 면적이 증가되어 열교환 효율을 높이는 효과를 가지게 된다.In addition, since the outer peripheral surface area of the heat pipe 220 is enlarged by the first spiral portion 221 and the second spiral portion 222 , the area exchanged with the air flowing through the housing 210 is increased to increase the heat exchange efficiency. will have an effect.

100:케이블 110a:냉각유체 유입관
110b:냉각유체 배출관 111:와류형성판
112:통공 112a:경사판
120:보호관 130:외피
140:도선 200:수냉식 열교환기
210:하우징 211:유입구
212:배출구 212:격벽
220:히트파이프 221:제1나선부
222:제2나선부 230:방열세관
P:유로100: cable 110a: cooling fluid inlet pipe
110b: cooling fluid discharge pipe 111: vortex forming plate
112: through hole 112a: inclined plate
120: protection tube 130: outer shell
140: conductor 200: water-cooled heat exchanger
210: housing 211: inlet
212: outlet 212: bulkhead
220: heat pipe 221: first spiral part
222: second helix 230: heat dissipation tube
P: Euro

Claims (5)

다수의 와이어가 밀집된 형상으로 구비된 도선(140),
도선(140)을 피복하는 형태로 구비되며, 절연 및 유연성을 가지는 재질로 형성된 외피(130),
절곡이 가능한 재질로 이루어지며, 외피(130)와 일정한 간격을 가지고 구비되어, 냉각유체가 흐르는 유로(P)를 형성하는 보호관(120),
보호관(120)의 일측과 타측에 구비되며, 냉각유체를 유로(P)에 유입시키고 배출시키는 냉각유체유입관(110a) 및 냉각유체배출관(110b)을 포함하되;
유로(P)에는 다수의 통공(112)이 형성된 와류형성판(111)이 구비되고,
와류형성판(111)에 형성된 통공(112)의 내벽면에는 중심부를 향하여 경사진 경사판(112a)이 구비되고,
냉각유체유입관(110a) 및 냉각유체배출관(110b)과 연결된 수냉식 열교환기(200)가 구비된 것을 특징으로 하는 히트파이프를 이용한 수냉식 급속 충전용 케이블.Conductive wire 140 provided with a plurality of wires in a dense shape,
The outer shell 130 is provided in the form of covering the conductive wire 140, and is formed of a material having insulation and flexibility;
Protective pipe 120 made of a material that can be bent and provided with a predetermined interval from the outer shell 130 to form a flow path P through which the cooling fluid flows;
It is provided on one side and the other side of the protection pipe 120, and includes a cooling fluid inlet pipe 110a and a cooling fluid outlet pipe 110b for introducing and discharging the cooling fluid into the flow path P;
The flow path P is provided with a vortex forming plate 111 having a plurality of through holes 112 formed therein,
An inclined plate 112a inclined toward the center is provided on the inner wall surface of the through hole 112 formed in the vortex forming plate 111,
A water-cooled quick-charging cable using a heat pipe, characterized in that it is provided with a water-cooled heat exchanger 200 connected to the cooling fluid inlet pipe (110a) and the cooling fluid outlet pipe (110b). 청구항 제1항에 있어서,
수냉식 열교환기(200)는,
중공의 원통형 구조를 가지며, 일측에는 냉각유체 배출관(110b)이 연결되고, 타측에는 냉각유체 유입관(110a)이 연결되며, 내부에는 격벽(213)이 형성되고, 격벽(213)에는 관통공이 구비된 하우징(210)과,
하우징(210)의 내부에 구비된 격벽(213)의 관통공에 끼움, 결합된 히트파이프(220)를 포함하는 것을 특징으로 하는 히트파이프를 이용한 수냉식 급속 충전용 케이블.2. The method of claim 1,
The water-cooled heat exchanger 200 is
It has a hollow cylindrical structure, a cooling fluid discharge pipe 110b is connected to one side, and a cooling fluid inlet pipe 110a is connected to the other side, a partition wall 213 is formed inside, and a through hole is provided in the partition wall 213 a housing 210 and
A water-cooled fast charging cable using a heat pipe, characterized in that it includes a heat pipe 220 that is fitted and coupled to the through hole of the partition wall 213 provided in the housing 210. 청구항 제2항에 있어서,
히트파이프(220)의 외면에 돌출된 중공관의 구조를 가지며, 내부에는 상변화물질이 내장된 방열세관(230)이 더 구비된 것을 특징으로 하는 히트파이프를 이용한 수냉식 급속 충전용 케이블.3. The method of claim 2,
A water-cooled quick-charging cable using a heat pipe, characterized in that it has a hollow tube structure protruding from the outer surface of the heat pipe 220, and further includes a heat dissipation tube 230 having a phase change material embedded therein. 청구항 제3항에 있어서,
방열세관(230)은,
히트파이프(220)의 외경보다 큰 원 또는 타원을 이루며 히트파이프(220)의 외주연을 감싸게 되는 나선형상이나, 히트파이프(220)의 길이방향으로 진행하게 되는 지그재그형상으로 구비된 것을 특징으로 하는 히트파이프를 이용한 수냉식 급속 충전용 케이블.4. The method of claim 3,
The heat dissipation tube 230,
Heat characterized in that it is provided in a spiral shape that forms a circle or an ellipse larger than the outer diameter of the heat pipe 220 and surrounds the outer periphery of the heat pipe 220, or a zigzag shape that proceeds in the longitudinal direction of the heat pipe 220 Cable for water-cooled quick-charging by means of a pipe. 청구항 제2항에 있어서,
히트파이프(220)는,
제1나선부(221), 제2나선부(222)를 포함하되;
제1나선부(221)는, 외경을 제2나선부(222)의 직경보다 크게 형성되고, 제1나선부(221)와 제2나선부(222)는 히프파이프(220)의 길이 방향을 따라 일정 간격 상호 교차 배열된 것을 특징으로 하는 히트파이프를 이용한 수냉식 급속 충전용 케이블.3. The method of claim 2,
The heat pipe 220 is
a first helix portion 221 and a second helix portion 222;
The first spiral portion 221 is formed to have an outer diameter larger than that of the second spiral portion 222 , and the first spiral portion 221 and the second spiral portion 222 extend in the longitudinal direction of the bottom pipe 220 . A water-cooled quick-charging cable using a heat pipe, characterized in that it is cross-arranged at regular intervals along the line.
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