KR101025457B1 - Electronic Control unit for Vehicle - Google Patents

Electronic Control unit for Vehicle Download PDF

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Publication number
KR101025457B1
KR101025457B1 KR1020050102575A KR20050102575A KR101025457B1 KR 101025457 B1 KR101025457 B1 KR 101025457B1 KR 1020050102575 A KR1020050102575 A KR 1020050102575A KR 20050102575 A KR20050102575 A KR 20050102575A KR 101025457 B1 KR101025457 B1 KR 101025457B1
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South Korea
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cover
control unit
electronic control
vehicle
heat
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KR1020050102575A
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Korean (ko)
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KR20070045841A (en
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유동현
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주식회사 만도
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • 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
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings

Abstract

본 발명은 방열효과를 향상시키고 PCB내의 소자배치를 효율화 할 수 있는 차량용 전자제어유닛을 제공하는 것이다.The present invention is to provide an electronic control unit for a vehicle that can improve the heat dissipation effect and efficiency of device arrangement in the PCB.

본 발명에 따른 차량용 전자제어유닛은 하우징과, 하우징의 일면에 마련된 PCB와, PCB을 덮는 커버를 포함하는 차량용 전자제어유닛에 있어서, 커버는 알루미늄 또는 스틸로 형성되며 내부에 삽입홈을 마련하여 DIP타입의 발열소자를 하나이상 설치하고, 커버와 발열소자와의 접촉부에는 절연접착제를 충진하여 발열소자에서 발생하는 열이 효과적으로 커버를 통해 외부로 방열되도록 한다.An electronic control unit for a vehicle according to the present invention includes a housing, a PCB provided on one side of the housing, and a vehicle electronic control unit including a cover covering the PCB, wherein the cover is made of aluminum or steel and has an insertion groove provided therein. One or more heating elements of the type are installed, and an insulating adhesive is filled in the contact portion between the cover and the heating element so that heat generated from the heating element is effectively radiated to the outside through the cover.

Description

차량용 전자제어유닛{Electronic Control unit for Vehicle}Electronic control unit for vehicle

도 1은 종래의 차량용 전자제어유닛의 개략적인 단면도이다.1 is a schematic cross-sectional view of a conventional electronic control unit for a vehicle.

도 2는 본 발명에 따른 차량용 전자제어유닛의 개략적인 단면도이다. 2 is a schematic cross-sectional view of an electronic control unit for a vehicle according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

11 : 하우징, 12 : PCB,11: housing, 12: PCB,

13 : PCB지지대, 20 : 커버,13: PCB support, 20: cover,

21 : 발열소자, 22 : 리드핀,21: heating element, 22: lead pin,

23 : 삽입홈, 24 : 절연접착제.23: insertion groove, 24: insulating adhesive.

본 발명은 차량용 전자제어유닛에 관한 것으로, 특히 내부에 설치되는 발열소자의 방열구조를 개선한 차량용 전자제어유닛을 제공하는 것이다.The present invention relates to an electronic control unit for a vehicle, and more particularly, to provide an electronic control unit for a vehicle having improved heat dissipation structure of a heating element installed therein.

일반적으로 차량에 사용되는 전자제어유닛(Electronic Control Unit: 이하 ECU라 한다.)은, 각종 센서 예를 들어, 산소센서, 공기흐름센서, 수온센서, 크랭크각 센서, 모터 포지션 센서, 대기압 센서 등으로부터의 신호를 전달받아 차량 각부의 구동을 전자적으로 제어하는 역할을 수행한다. In general, an electronic control unit (hereinafter referred to as an ECU) used in a vehicle includes various sensors such as oxygen sensors, air flow sensors, water temperature sensors, crank angle sensors, motor position sensors, atmospheric pressure sensors, and the like. Electronically controls the driving of each part of the vehicle by receiving the signal of.

이러한 ECU는 구동시 내부에 다수 장착된 발열부품, 예컨대 모터나 솔레노이드를 구동하는 소자로부터 고열이 발생하게 되므로, 통상 원활한 방열효과를 얻기 위하여 발열소자가 장착된 인쇄회로기판(이하 PCB라 한다.)에 방열판을 솔더링하는 등의 방식으로 설치하여 발열소자로부터 발생된 열을 방열판을 통해 외부로 방출시키게 된다.Since such an ECU generates high heat from a plurality of heat generating parts mounted therein, for example, a device for driving a motor or a solenoid, a printed circuit board equipped with a heat generating element (hereinafter referred to as a PCB) is generally used to obtain a smooth heat dissipation effect. The heat sink is installed in a method such as soldering to heat the heat generated from the heating element to the outside through the heat sink.

도1은 종래의 차량용 전자제어유닛을 개략적으로 도시한 단면도이다. 종래의 차량용 전자제어유닛은 하우징(1)과, 하우징(1)일면에 설치되는 PCB(2)와, PCB(2)와 전기적으로 접속하는 FET(Field Effect Transistor) 등과 같은 발열소자(3)와, 발열소자(3)의 방열을 위해 마련되는 방열판(heat sink)(4)과, 이들을 덮는 커버(5)를 구비하고 있다.1 is a cross-sectional view schematically showing a conventional electronic control unit for a vehicle. The conventional electronic control unit for a vehicle includes a housing (1), a PCB (2) installed on one surface of the housing (1), and a heating element (3) such as a field effect transistor (FET) electrically connected to the PCB (2). And a heat sink 4 provided for heat dissipation of the heat generating element 3, and a cover 5 covering them.

이와 같이 구성된 종래의 차량용 전자제어유닛은 발열소자(3)로부터 발생된 열을 방열판(4)으로 흡수하고, 흡수한 열을 다시 하우징(1) 및 커버(5)의 외부로 방열시켜 발열소자(3)가 과열되는 것을 방지한다. 그러나 이러한 종래의 차량용 전자제어유닛은 하우징(1)과 커버(5)가 PCB(2)와 방열판(4) 전체를 감싸고 있으므로, 방열판(4)의 열이 하우징(1)과 커버(5)에 의해 외부로 배출되는 것이 차단되어 방열효율이 저하되는 문제점이 있다. 즉, 방열판(4)으로부터 방열된 열이 하우징(1) 및 커버(5)에 의해 차단되어 외부로 원활하게 방열되지 못하고 그 내부에 열공기층을 형성하게 되므로 장시간 사용시 내부 온도가 상승하여 발열소자(3)가 과열로 인해 파손되는 문제점이 있다. 더욱이 하우징(1) 및 커버(5)는 플라스틱 재질로 이루어져 방열 효율이 더욱 저하되었다.The conventional electronic control unit for a vehicle configured as described above absorbs heat generated from the heat generating element 3 to the heat dissipation plate 4, and heats the absorbed heat back to the outside of the housing 1 and the cover 5 to generate the heat generating element ( 3) prevent overheating. However, in the conventional electronic control unit for a vehicle, since the housing 1 and the cover 5 surround the entire PCB 2 and the heat sink 4, the heat of the heat sink 4 is applied to the housing 1 and the cover 5. There is a problem in that the discharge to the outside is blocked to reduce the heat radiation efficiency. That is, the heat radiated from the heat sink 4 is blocked by the housing 1 and the cover 5, so that the heat is not radiated to the outside smoothly, and a heat air layer is formed therein. There is a problem that 3) is damaged due to overheating. In addition, the housing 1 and the cover 5 are made of a plastic material, further reducing the heat dissipation efficiency.

또한 발열소자(3)는 SMD(Surface Mounted Device)타입 (PCB면에 직접 부착하는 타입)이고, 또한 방열판(4) 역시 직접 PCB(2)표면에 솔더링함으로써 발열소자(3) 와 방열판(4)이 PCB(2)의 일정부분을 차지하게 되어 효율적이고 집약적인 소자배치가 어려운 문제점이 있다.In addition, the heat generating element 3 is a SMD (Surface Mounted Device) type (type directly attached to the PCB surface), and the heat sink 4 is also directly soldered to the surface of the PCB (2), the heat generating element (3) and the heat sink (4) Since the PCB 2 occupies a certain portion, there is a problem in that efficient and intensive device arrangement is difficult.

이러한 문제점은 특히 그 기능을 수행함으로써 상당한 고열을 발생하는 차량 안정성 제어시스템(ESP) 등의 전자제어유닛에서는 더욱 문제된다. This problem is particularly problematic in electronic control units such as vehicle stability control systems (ESPs), which generate significant high heat by performing their functions.

본발명은 이러한 문제점을 해결하기 위한 것으로, 본발명의 목적은 발열소자로부터 발생된 열을 원활하게 외부로 배출하고, PCB에 효율적인 소자배치가 가능한 차량용 전자제어유닛을 제공하는 것이다.The present invention is to solve this problem, it is an object of the present invention to provide a vehicle electronic control unit capable of discharging the heat generated from the heating element to the outside smoothly, and the efficient arrangement of the element on the PCB.

이러한 목적을 달성하기 위한 본 발명에 따른 차량용 전자제어유닛은 하우징과, 상기 하우징의 일면에 마련된 인쇄회로기판과, 상기 인쇄회로기판을 덮는 커버를 포함하는 차량용 전자제어유닛에 있어서, 상기 커버는 알루미늄 또는 스틸로 형성되며 내부에는 DIP타입의 발열소자가 하나이상 설치되고, 상기 발열소자에는 리드핀이 구비되어 상기 인쇄회로기판에 전기적으로 연결되고, 상기 발열소자에서 발생하는 열은 상기 커버를 통해 외부로 방열되는 것을 특징으로 한다.In order to achieve the above object, an electronic control unit for a vehicle according to the present invention includes a housing, a printed circuit board provided on one surface of the housing, and a cover covering the printed circuit board, wherein the cover is made of aluminum. Or formed of steel and having at least one DIP type heating element installed therein, the heating element having a lead pin electrically connected to the printed circuit board, and heat generated from the heating element is externally provided through the cover. It characterized in that the heat dissipation.

또한, 상기 커버의 내부는 방열기능을 향상시키기 위해 상기 발열소자가 삽입되어 견고하게 밀착될 수 있도록 삽입홈이 마련된 것을 특징으로 한다.In addition, the inside of the cover is characterized in that the insertion groove is provided so that the heating element is inserted and firmly adhered to improve the heat dissipation function.

또한, 상기 커버와 상기 발열소자와의 접촉부에는 전기가 통하는 것을 방지하고 열전달을 원활하게 하기 위해 절연 접착제가 충진된 것을 특징으로 한다.In addition, the contact portion between the cover and the heat generating element is characterized in that the insulating adhesive is filled in order to prevent electricity from passing through and to facilitate heat transfer.

이하, 본 발명에 따른 하나의 바람직한 실시 예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 차량용 전자제어유닛의 개략적인 단면도이다.2 is a schematic cross-sectional view of an electronic control unit for a vehicle according to the present invention.

본 발명에 따른 차량용 전자제어유닛은 하우징(11)과, 하우징(11)의 상면에 설치되는 PCB(12)와, PCB(12)를 덮기위해 하우징(11)과 결합하는 커버(20)를 구비한다.An electronic control unit for a vehicle according to the present invention includes a housing 11, a PCB 12 installed on an upper surface of the housing 11, and a cover 20 coupled to the housing 11 to cover the PCB 12. do.

이때 하우징(11)의 상면에는 PCB(12)가 하우징(11)의 상면과 이격되어 고정설치될 수 있도록 양단부가 돌출되어 PCB지지대(13)를 형성한다. 또한 하우징(11)의 내부에는 솔레노이드밸브(미도시)가 설치되어, 솔레노이드밸브의 보빈(미도시)으로부터 연장된 리드선(미도시)이 PCB(12)에 연결된다.In this case, both ends of the PCB 12 are protruded to form the PCB support 13 so that the PCB 12 may be fixedly spaced apart from the upper surface of the housing 11. In addition, a solenoid valve (not shown) is installed inside the housing 11, and a lead wire (not shown) extending from a bobbin (not shown) of the solenoid valve is connected to the PCB 12.

또한 PCB(12)는 양면에 각종 소자들이 마련되어 하우징의 PCB지지대(13)에 고정설치된다.In addition, the PCB 12 is provided with a variety of elements on both sides is fixed to the PCB support 13 of the housing.

또한 커버(20)는 내면에 DIP타입(PCB면에 핀으로 부착되는 타입)의 발열소자(21)가 하나이상 설치되고, 발열소자(21)에는 리드핀(22)이 마련되어 PCB(12)에 전기적으로 접촉한다. 이때 커버(20)는 열전도도가 큰 알루미늄 또는 스틸로 형성되어 별도의 방열판을 구비함이 없이 커버(20)가 방열판의 기능을 수행하도록 한다.In addition, the cover 20 is provided with one or more heating elements 21 of the DIP type (type attached to the PCB surface with a pin) on the inner surface, the lead pin 22 is provided on the heating element 21 to the PCB 12 Electrical contact. At this time, the cover 20 is formed of aluminum or steel with high thermal conductivity so that the cover 20 performs the function of the heat sink without having a separate heat sink.

또한 바람직하게는 커버(20)의 내면에는 발열소자(21)가 밀착되어 삽입될 수 있도록 삽입홈(23)을 형성하여 발열소자(21)를 삽입홈(23)에 밀착삽입시킨다. 이는 발열소자(21)의 외면을 통해 확산되는 열의 대부분을 커버(20)로 전도시킬 수 있는 구조로써, 발열소자의 일면을 통해 방열판으로 열이 전도되는 구조의 종래의 전자제어유닛에 비해 더욱 향상된 방열효과를 발휘할 수 있다.Also preferably, the inner surface of the cover 20 forms an insertion groove 23 so that the heat generating element 21 may be in close contact with the heat generating element 21, thereby closely inserting the heat generating element 21 into the insertion groove 23. This is a structure capable of conducting most of the heat diffused through the outer surface of the heat generating element 21 to the cover 20, which is more improved than the conventional electronic control unit of the heat conduction to the heat sink through one surface of the heat generating element The heat dissipation effect can be exhibited.

또한 발열소자(21)는 다양한 형상으로 제작될 수 있고 이에 따라 커버(20)의 삽 입홈(23) 역시 발열소자(21)가 수용될 수 있도록 다양하게 형성될 수 있다.In addition, the heating element 21 may be manufactured in various shapes, and thus, the insertion groove 23 of the cover 20 may also be variously formed to accommodate the heating element 21.

또한 커버(20)와 발열소자(21)가 접촉하는 부분에는 절연 접착제(24)를 충진시킨다. 이러한 절연 접착제(24)는 발열소자(21)로부터 커버(20)로 전기가 통하는 것을 방지하고 발열소자(21)와 커버(20)사이의 열전달율을 더욱 높여 방열효과를 향상시킬 수 있다. In addition, the insulating adhesive 24 is filled in a portion where the cover 20 and the heating element 21 contact each other. The insulating adhesive 24 may prevent electricity from flowing from the heat generating element 21 to the cover 20 and further increase the heat transfer rate between the heat generating element 21 and the cover 20 to improve the heat dissipation effect.

이와 같은 본 발명에 따른 차량용 전자제어유닛은 커버(20)가 방열판의 역할을 수행함으로써 종래의 제한된 크기의 방열판에 비해 현저하게 큰 열체적을 가지고, 또한 외기와 커버가 직접적으로 접촉하고 있기 때문에 종래의 전자제어유닛에 비해 우수한 방열효과를 얻을 수 있어 전자제어유닛의 열적 안정성이 향상된다.Such an electronic control unit for a vehicle according to the present invention has a significantly larger thermal volume than the conventional limited size heat sink by performing the role of the heat sink, and also because the outside and the cover directly contact the air. Compared with the electronic control unit of the excellent heat dissipation effect can be obtained, the thermal stability of the electronic control unit is improved.

또한 발열소자(21)가 커버(20)의 내부의 삽입홈(23)에 삽입됨으로써 여러 외면을 통해 열전달이 이루어져 방열효과가 향상된다.In addition, the heat generating element 21 is inserted into the insertion groove 23 of the inside of the cover 20, the heat transfer through the various outer surface is improved heat radiation effect.

또한 발열소자와 방열판이 PCB의 외면에 직접 면접촉을 하는 구조가 아니므로 PCB상의 소자배치에 있어서 공간활용도를 향상시킬 수 있고, 보다 많은 소자를 PCB상에 실장할 수 있다. In addition, since the heating element and the heat sink are not in direct surface contact with the outer surface of the PCB, the space utilization can be improved in the arrangement of the elements on the PCB, and more elements can be mounted on the PCB.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 차량용 전자제어유닛은 발열소자를 커버의 내면에 설치하고 커버가 방열판의 기능을 수행토록 함으로써 발열소자에서 발생된 열이 원활하게 외부로 배출되어 발열소자의 과열을 방지할 수 있다.As described in detail above, the vehicle electronic control unit according to the present invention is installed on the inner surface of the cover and the cover to perform the function of the heat sink by the heat generated from the heating element is smoothly discharged to the outside of the heating element Overheating can be prevented.

또한 PCB에 효율적인 소자배치가 가능하여 공간활용도를 향상시킬 수 있는 효과가 있다.In addition, there is an effect that can be efficiently placed on the PCB to improve the space utilization.

Claims (3)

하우징과, 상기 하우징의 일면에 마련된 인쇄회로기판과, 상기 인쇄회로기판을 덮는 커버를 포함하는 차량용 전자제어유닛에 있어서,In a vehicle electronic control unit comprising a housing, a printed circuit board provided on one surface of the housing, and a cover covering the printed circuit board, 상기 커버는 알루미늄 또는 스틸로 형성되며 내부에는 DIP타입의 발열소자가 하나이상 설치되고, 상기 발열소자에는 리드핀이 구비되어 상기 인쇄회로기판에 전기적으로 연결되고, 상기 발열소자에서 발생하는 열은 상기 커버를 통해 외부로 방열되는 것을 특징으로 하는 차량용 전자제어유닛.The cover is made of aluminum or steel, and at least one DIP type heating element is installed therein, the heating element is provided with a lead pin and is electrically connected to the printed circuit board, and the heat generated from the heating element is Electronic control unit for a vehicle, characterized in that the heat radiation to the outside through the cover. 제1항에 있어서, 상기 커버의 내부는 방열기능을 향상시키기 위해 상기 발열소자가 삽입되어 견고하게 밀착될 수 있도록 삽입홈이 마련된 것을 특징으로 하는 차량용 전자제어유닛.The vehicle electronic control unit according to claim 1, wherein the inside of the cover is provided with an insertion groove such that the heating element is inserted and tightly adhered to improve the heat dissipation function. 제1항 또는 제2항에 있어서, 상기 커버와 상기 발열소자와의 접촉부에는 전기가 통하는 것을 방지하고 열전달을 원활하게 하기 위해 절연 접착제가 충진된 것을 특징으로 하는 차량용 전자제어유닛.The electronic control unit for a vehicle according to claim 1 or 2, wherein the contact portion between the cover and the heat generating element is filled with an insulating adhesive to prevent electricity from flowing and to facilitate heat transfer.
KR1020050102575A 2005-10-28 2005-10-28 Electronic Control unit for Vehicle KR101025457B1 (en)

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KR101283615B1 (en) * 2011-12-12 2013-07-08 주식회사 유라코퍼레이션 Junction box heat dissipating device
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JP2002299867A (en) 2001-04-04 2002-10-11 Denso Corp Electronic control apparatus
KR200330413Y1 (en) 2003-07-18 2003-10-17 윤장영 Power supply structure for protection gainst heat

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002299867A (en) 2001-04-04 2002-10-11 Denso Corp Electronic control apparatus
KR200330413Y1 (en) 2003-07-18 2003-10-17 윤장영 Power supply structure for protection gainst heat

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