KR100759878B1 - A housing sealing arrangement of electrical control unit for electronic control brake system - Google Patents

A housing sealing arrangement of electrical control unit for electronic control brake system Download PDF

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Publication number
KR100759878B1
KR100759878B1 KR1020020007652A KR20020007652A KR100759878B1 KR 100759878 B1 KR100759878 B1 KR 100759878B1 KR 1020020007652 A KR1020020007652 A KR 1020020007652A KR 20020007652 A KR20020007652 A KR 20020007652A KR 100759878 B1 KR100759878 B1 KR 100759878B1
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South Korea
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groove
cover
housing
control unit
brake system
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KR1020020007652A
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Korean (ko)
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KR20030067920A (en
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유동현
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주식회사 만도
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00—Optimising design; Manufacturing; Testing
    • B60Y2304/07—Facilitating assembling or mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/81—Braking systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Regulating Braking Force (AREA)

Abstract

본 발명은 전자제어식 브레이크 시스템용 전자제어유닛의 밀봉장치에 관한 것으로, 그 목적은 전자제어유닛 하우징의 커버 밀봉 구조를 개선하여 이의 조립 작업을 보다 용이하게 하고자 하는 것이다.The present invention relates to a sealing device for an electronic control unit for an electronically controlled brake system, the object of which is to improve the cover sealing structure of the electronic control unit housing to facilitate the assembly operation thereof.

이를 위해 본 발명에 따른 전자제어식 브레이크 시스템용 전자제어유닛의 밀봉장치(40)에 의하면; 하우징(32)의 개방단부를 따라 오목하게 형성된 그루브(41)와, 이 그루브(41)를 따라 삽입되도록 커버(33)의 바닥면(33b)에서 돌출되게 형성된 삽입돌기(42)와, 그루브(41)내에 배치되어 삽입돌기(42)의 삽입에 따라 압착되는 시일링부재(43)와, 삽입돌기(42)가 그루브(41)를 따라 삽입된 상태로 유지되도록 커버(33)를 하우징(32)에 탄성적으로 고정시키기 위한 고정수단(44)을 구비하고 있다. 이에 따라 커버(33)가 하우징(32)의 개방단부에 원터치 방식으로 견실하게 고정됨과 동시에 시일링부재(43)에 의해 하우징(32)의 개방단부가 완전하게 밀봉됨으로써, 커버(33)의 조립 작업이 보다 용이하게 이루어지며 이로 인해 전자제어식 브레이크 시스템의 제조비용을 절감시킬 수 있는 작용효과가 있다.According to the sealing device 40 of the electronic control unit for an electronically controlled brake system according to the present invention for this purpose; A groove 41 formed concave along the open end of the housing 32, an insertion protrusion 42 formed to protrude from the bottom surface 33b of the cover 33 to be inserted along the groove 41, and a groove ( The cover 33 is disposed in the housing 41 so that the sealing member 43 is pressed in accordance with the insertion of the insertion protrusion 42 and the insertion protrusion 42 is maintained in the inserted state along the groove 41. Fastening means 44 for elastically fixing to the < RTI ID = 0.0 > Accordingly, the cover 33 is firmly fixed to the open end of the housing 32 in a one-touch manner, and the open end of the housing 32 is completely sealed by the sealing member 43, thereby assembling the cover 33. The operation is made easier and this has the effect of reducing the manufacturing cost of the electronically controlled brake system.

Description

전자제어식 브레이크 시스템용 전자제어유닛의 밀봉장치{A housing sealing arrangement of electrical control unit for electronic control brake system}A housing sealing arrangement of electrical control unit for electronic control brake system

도 1은 종래 전자제어식 브레이크 시스템의 전자제어유닛 구조를 보인 단면도이다.1 is a cross-sectional view showing the structure of an electronic control unit of a conventional electronically controlled brake system.

도 2는 본 발명에 따른 전자제어식 브레이크 시스템용 전자제어유닛 구조를 보인 것이다.Figure 2 shows the structure of the electronic control unit for an electronically controlled brake system according to the present invention.

도 3은 본 발명에 따른 전자제어유닛의 하우징과 커버의 밀봉구조를 발췌하여 보인 분해 단면도이다.3 is an exploded cross-sectional view showing the sealing structure of the housing and the cover of the electronic control unit according to the present invention.

도 4와 도 5는 전자제어유닛의 하우징과 커버의 조립과정을 보인 것이다.4 and 5 show the assembly process of the housing and the cover of the electronic control unit.

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

30..전자제어유닛 32..하우징 30. Electronic control unit 32. Housing

33..커버 40..밀봉장치 33. Cover 40. Sealing device

41..그루브 42..삽입돌기 41..groove 42..insertion protrusion

43..시일링부재 44..고정수단 43. Sealing member 44. Fastening means

44a..걸림턱 44b..걸림홈44a.

본 발명은 전자제어식 브레이크 시스템용 전자제어유닛에 관한 것으로, 더욱 상세하게는 솔레노이드밸브의 코일조립체 및 회로기판 등이 배치된 후 커버를 통해 밀봉되는 전자제어식 브레이크 시스템용 전자제어유닛의 밀봉장치에 관한 것이다.The present invention relates to an electronic control unit for an electronically controlled brake system, and more particularly, to a sealing device for an electronic control unit for an electronically controlled brake system that is sealed through a cover after a coil assembly and a circuit board of the solenoid valve are disposed. will be.

일반적으로 전자제어식 브레이크 시스템은 차량의 슬립현상을 효율적으로 방지하여 강력하고 안정된 제동력을 얻기 위한 것으로, 제동 시 휠의 미끄러짐을 방지하는 안티록 브레이크 시스템(ABS:Anti-Lock Brake System)과, 차량의 급발진 또는 급가속시 구동륜의 슬립을 방지하는 브레이크 트랙션 제어 시스템(BTCS:Brake Traction Control System)과, 안티록 브레이크 시스템과 트랙션 제어를 조합하여 브레이크 액압을 제어함으로써 차량의 주행상태를 안정적으로 유지시키는 차량자세제어 시스템(VDC:Vehicle Dynamic Control System) 등이 개시되어 있다.In general, the electronically controlled brake system effectively prevents the slip of the vehicle and obtains a strong and stable braking force.Anti-lock brake system (ABS) to prevent the wheel from slipping during braking and Brake Traction Control System (BTCS) which prevents slippage of driving wheel during sudden start or acceleration, and anti-lock brake system and traction control are combined to control brake hydraulic pressure to keep the vehicle stable. A posture control system (VDC) and the like are disclosed.

이러한 전자제어식 브레이크 시스템은 차량의 휠에 장착된 유압브레이크 측으로 전달되는 제동유압을 제어하기 위한 다수개의 솔레노이드밸브와, 오일을 일시 저장하는 한 쌍의 저압어큐뮬레이터 및 고압어큐뮬레이터와, 저압어큐뮬레이터에 일시 저장된 오일을 강제 펌핑하기 위한 모터 및 한 쌍의 펌프와, 솔레노이드밸브와 모터의 구동을 제어하기 위한 전자제어유닛(ECU;electrical control unit)을 포함하고 있다. The electronically controlled brake system includes a plurality of solenoid valves for controlling braking hydraulic pressure delivered to a hydraulic brake side mounted on a wheel of a vehicle, a pair of low pressure accumulators and high pressure accumulators for temporarily storing oil, and oil temporarily stored in the low pressure accumulator. It includes a motor and a pair of pumps for forced pumping, and an electronic control unit (ECU) for controlling the driving of the solenoid valve and the motor.

이 때, 솔레노이드밸브의 밸브조립체와 펌프 및 저압 고압어큐뮬레이터 등은 알루미늄으로 제작된 모듈레이터블럭에 콤팩트하게 압입 설치된다. 그리고 전자제어유닛은 솔레노이드밸브의 코일조립체 및 회로기판 등이 하우징에 내장되며, 모듈 레이터블럭과 마운팅볼트를 통해 조립된다.At this time, the valve assembly of the solenoid valve, the pump and the low pressure high pressure accumulator and the like are compactly installed in a modulator block made of aluminum. In addition, the electronic control unit includes a coil assembly and a circuit board of the solenoid valve in a housing, and is assembled through a modulator block and a mounting bolt.

도 1을 참조하면, 종래 전자제어식 브레이크 시스템의 전자제어유닛(1)은 플라스틱으로 사출 성형되며 사각의 벽체를 가지는 함체 상의 하우징(2)과, 이 하우징(2)의 개방 공간에 설치되는 회로기판(3)과, 하우징(2)내에 고정되는 솔레노이드밸브(7)의 코일조립체(7a)와, 하우징(2)의 개방부를 덮는 커버(4)를 구비하고 있으며, 이 하우징(2)의 모서리부분을 마운팅볼트(미도시)가 관통하여 모듈레이터블럭(6)과 결합된다. 이 모듈레이터블럭(6)에는 솔레노이드밸브(7)의 밸브조립체(7b) 및 펌프(미도시) 등이 콤팩트하게 내장되어 있다.Referring to FIG. 1, the electronic control unit 1 of the conventional electronically controlled brake system is injection molded from plastic and has a housing 2 on a housing having a rectangular wall and a circuit board installed in an open space of the housing 2. (3), a coil assembly (7a) of the solenoid valve (7) fixed in the housing (2), and a cover (4) covering the opening of the housing (2). Mounting bolts (not shown) are penetrated and coupled with the modulator block 6. In the modulator block 6, the valve assembly 7b of the solenoid valve 7, the pump (not shown), etc. are compactly incorporated.

그리고 회로기판(3)이 설치된 하우징(2)의 개방부에는 수분과 같은 이물질 침투가 방지되도록 커버(4)가 밀봉 설치된다. 이를 위해 커버(4)는 실리콘(silicon) 또는 폴리우레탄(polyurethan)과 같은 시일링 용액(5)을 통해 밀봉된다. 즉, 하우징(2)의 개방단부를 따라 시일링 용액(5)을 도포한 후 그 위에 커버(4)를 덮어 장시간의 상온경화와 고온 가열경화 공정을 거치면, 하우징(2)의 개방부가 밀봉되며 이것에 의해 이물질 침투가 확실하게 방지된다.In addition, the cover 4 is sealed to the opening of the housing 2 in which the circuit board 3 is installed so that foreign matters such as moisture are prevented. For this purpose, the cover 4 is sealed through a sealing solution 5 such as silicon or polyurethane. That is, after applying the sealing solution 5 along the open end of the housing 2 and covering the cover 4 thereon, the open portion of the housing 2 is sealed after a long time room temperature curing and high temperature heat curing process. This reliably prevents foreign matter from penetrating.

그러나 이러한 종래 전자제어유닛(1)의 밀봉구조에서는 커버(4)가 시일링 용액(5)을 통해 고정 밀봉되기 때문에, 커버(4)의 밀봉작업이 난해하고 작업시간이 길어지는 문제점이 있다. However, since the cover 4 is fixedly sealed through the sealing solution 5 in the sealing structure of the conventional electronic control unit 1, the sealing work of the cover 4 is difficult and the working time is long.

또한, 하우징(2)과 커버(4)의 조립라인에서 시일링 용액(5)을 도포하기 위한 생산설비 투자가 요구되며, 이러한 것이 제조비용의 상승 원인으로 작용하게 된다. In addition, an investment in production equipment for applying the sealing solution 5 in the assembly line of the housing 2 and the cover 4 is required, which acts as a cause of the increase in the manufacturing cost.

본 발명은 이러한 문제점을 해결하기 위한 것으로; 본 발명의 목적은 하우징의 개방부를 덮는 커버 및 이의 밀봉구조를 개선하여 하우징의 조립 작업을 보다 용이하게 함과 동시에 전자제어식 브레이크 시스템의 전반적인 제조비용을 절감시킬 수 있는 전자제어식 브레이크 시스템용 전자제어유닛의 밀봉장치를 제공하는 것이다. The present invention is to solve this problem; An object of the present invention is to improve the cover covering the opening of the housing and its sealing structure to facilitate the assembly work of the housing and at the same time reduce the overall manufacturing cost of the electronically controlled brake system electronic control unit for an electronically controlled brake system It is to provide a sealing device of.

이러한 목적을 달성하기 위한 본 발명은; The present invention for achieving this object is;

모듈레이터블럭에 마운팅볼트를 통해 장착되며 내부에 솔레노이드밸브의 코일조립체 및 회로기판이 설치되도록 개방공간이 형성된 하우징과, 상기 회로기판이 설치된 상기 하우징의 개방단을 덮도록 가장자리를 따라 스커트부가 형성된 커버와, 상기 커버를 상기 하우징의 개방단부에 밀봉하기 위한 밀봉장치를 갖춘 전자제어식 브레이크 시스템의 전자제어유닛에 있어서,A cover mounted on the modulator block through a mounting bolt and having an open space formed therein so that the coil assembly and the circuit board of the solenoid valve are installed, and a cover formed with a skirt along an edge to cover the open end of the housing where the circuit board is installed; An electronic control unit of an electronically controlled brake system having a sealing device for sealing the cover to an open end of the housing,

상기 밀봉장치는 하우징의 개방단부를 따라 오목하게 형성된 그루브와, 그루브를 따라 삽입되도록 커버의 바닥면에서 돌출되게 형성된 삽입돌기와, 그루브내에 배치되어 삽입돌기의 삽입에 따라 압착되는 시일링부재와, 삽입돌기가 그루브를 따라 삽입된 상태로 유지되도록 커버를 하우징에 탄성적으로 고정시키기 위한 고정수단을 구비하는 것을 특징으로 한다.The sealing device includes a groove formed concave along the open end of the housing, an insertion protrusion formed to protrude from the bottom surface of the cover to be inserted along the groove, a sealing member disposed in the groove and pressed according to the insertion of the insertion protrusion, and the insertion. And a fixing means for elastically fixing the cover to the housing so that the protrusion is inserted along the groove.

또한, 시일링부재는 그루브내에 배치된 상태에서 삽입돌기가 삽입되도록 길이방향으로 삽입홈이 형성되어, 삽입돌기가 삽입홈내로 삽입되는 과정에서 삽입돌기 및 그루브의 저면에 압착되는 것을 특징으로 한다. In addition, the sealing member is characterized in that the insertion groove is formed in the longitudinal direction so that the insertion projection is inserted in the state disposed in the groove, the insertion projection and the groove in the process of being inserted into the insertion groove is characterized in that the pressing surface.                     

또한, 시일링부재의 삽입홈 양 측벽에는 삽입돌기의 삽입 시 탄성 변형되면서 삽입돌기의 양 측면에 압착되도록 압착부가 돌출되게 형성된 것을 특징으로 한다.In addition, both sides of the insertion groove of the sealing member is characterized in that the pressing portion is formed to protrude so as to be compressed on both sides of the insertion protrusion while elastically deformed when the insertion protrusion is inserted.

또한 고정수단은 하우징의 개방부 외측면을 따라 일정한 간격으로 돌출되게 형성된 다수개의 걸림턱과, 걸림턱들이 결합되도록 커버의 스커트부 내벽을 따라 형성된 걸림홈으로 이루어 진 것을 특징으로 한다.In addition, the fixing means is characterized by consisting of a plurality of engaging jaw formed to protrude at regular intervals along the outer surface of the opening of the housing, and the engaging groove formed along the inner wall of the skirt portion of the cover so that the engaging jaws are coupled.

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 2를 참조하면, 본 발명에 따른 전자제어식 브레이크 시스템은 다수의 노말오픈형 및 노말클로즈형 솔레노이드밸브(20)들의 밸브조립체(21)와 한 쌍의 펌프(미도시) 및 저압 고압어큐뮬레이터(미도시) 등이 콤팩트하게 장착된 모듈레이터블럭(10)과, 이 모듈레이터블럭(10)의 측면에 마운팅볼트(미도시)를 통해 장착되며 내부에 솔레노이드밸브(20)들의 코일조립체(22)와 회로기판(31) 등을 갖춘 전자제어유닛(30)을 포함하고 있다.Referring to FIG. 2, the electronically controlled brake system according to the present invention includes a valve assembly 21 of a plurality of normally open and normally closed solenoid valves 20, a pair of pumps (not shown), and a low pressure high pressure accumulator (not shown). ) Is mounted on the side of the modulator block 10 through a mounting bolt (not shown), the coil assembly 22 of the solenoid valves 20 and the circuit board 31) and an electronic control unit 30 having the back.

전자제어유닛(30)은 바닥면(32a)과 벽면(32b)을 가지며 상부가 개방된 함체 상의 하우징(32)과, 이 하우징(32)의 바닥면(32a) 상측 공간에 장착되는 회로기판(31)과, 이 회로기판(31)과 코일조립체(22)의 리드선(22a)을 전기적으로 접속시킨 후 하우징(32)의 개방부를 덮도록 가장자리를 따라 스커트부(33a)가 형성된 커버(33)를 구비하여, 전자제어식 브레이크 시스템의 각 모드를 전체적으로 제어하게 된다. The electronic control unit 30 has a bottom surface 32a and a wall surface 32b, a housing 32 on an open top of the housing, and a circuit board mounted in a space above the bottom surface 32a of the housing 32. 31 and a cover 33 having a skirt portion 33a formed along an edge thereof to electrically connect the circuit board 31 and the lead wire 22a of the coil assembly 22 to cover the opening of the housing 32. It is provided with, to control the respective modes of the electronically controlled brake system as a whole.                     

이러한 전자제어유닛(30)의 커버(33)는 하우징(32) 내부로 수분과 같은 이물질이 침투되지 않도록 밀봉장치(40)를 통해 밀봉 결합되는데, 밀봉장치(40)의 상세한 구조를 도 3을 참조하여 설명하면 다음과 같다.The cover 33 of the electronic control unit 30 is sealingly coupled through the sealing device 40 so that foreign substances such as moisture do not penetrate into the housing 32, the detailed structure of the sealing device 40 is shown in FIG. 3. If described with reference to:

먼저, 밀봉장치(40)는 하우징(32)의 개방부를 따라 형성된 그루브(41)와, 이 그루브(41)를 따라 삽입되도록 커버(33)의 스커트부(33a) 내측을 따라 형성된 삽입돌기(42)와, 이 삽입돌기(42)의 삽입 시 압착되도록 그루브(41)내에 배치된 시일링부재(43)와, 삽입돌기(42)가 그루브(41)를 따라 삽입된 상태로 유지되도록 커버(33)를 하우징(32)에 탄성적으로 고정시키는 고정수단(44)을 갖추고 있다.First, the sealing device 40 includes a groove 41 formed along the opening of the housing 32 and an insertion protrusion 42 formed along the inside of the skirt portion 33a of the cover 33 so as to be inserted along the groove 41. ), The sealing member 43 disposed in the groove 41 so as to be compressed when the insertion protrusion 42 is inserted, and the cover 33 so that the insertion protrusion 42 is inserted along the groove 41. ) Is provided with a fixing means 44 for elastically fixing the housing 32 to the housing 32.

그루브(41)는 하우징(32)의 개방단부를 따라 오목하게 형성된 것으로, 합성수지로 사출 성형되는 하우징(32)의 제작 시 소정의 깊이와 폭(W1)을 갖도록 일체로 구성하는 것이 바람직하다. 이 때, 그루브(41)의 폭(W1)은 삽입돌기(42)가 시일링부재(43)를 탄성 변형시키면서 억지로 결합될 수 있을 정도로 구성하는 것이 바람직하다.The groove 41 is formed to be concave along the open end of the housing 32, and is preferably integrally formed to have a predetermined depth and width W1 when the housing 32 is injection molded from synthetic resin. At this time, the width W1 of the groove 41 is preferably configured such that the insertion protrusion 42 can be forcibly coupled while elastically deforming the sealing member 43.

삽입돌기(42)는 하우징(32)의 그루브(41)와 대향되는 커버(33)의 바닥면(33b)에서 스커트부(33a) 내측을 따라 돌출되게 형성된 것으로, 커버(33)를 하우징(32) 개방부에 덮으면 이것은 그루브(41)내로 삽입되게 된다. The insertion protrusion 42 is formed to protrude along the inside of the skirt portion 33a at the bottom surface 33b of the cover 33 facing the groove 41 of the housing 32, and the cover 33 is disposed on the housing 32. The cover is then inserted into the groove 41.

그리고 시일링부재(43)는 자체 탄성력을 갖는 러버(RUBBER)로 제작되며 그루브(41)를 따라 배치된다. 이러한 시일링부재(43)에는 그루브(41)내에 배치된 상태에서 삽입돌기(42)가 삽입되도록 길이방향으로 삽입홈(43a)이 형성되어 있다. 따라서 삽입돌기(42)를 삽입홈(43a)내로 삽입하게 되면, 시일링부재(43)는 삽입돌기(42) 및 그루브(41)의 저면과 접하면서 압착되게 된다. 이러한 시일링부재(43)의 밀봉력을 높이기 위해, 시일링부재(43)의 삽입홈(43a) 양 측벽에는 탄성 변형되면서 삽입돌기(42)의 양 측면에 압착되도록 압착부(43b)가 대응하게 형성된다. 결국, 압착부(43b)에 의해 삽입홈(43a)의 입구측 폭(W2)은 삽입돌기(42)의 두께(T)보다도 좁게 이루어지며, 이로 인해 삽입돌기(42)의 삽입 시 시일링부재(43)가 탄성 변형되면서 압착되게 된다. And the sealing member 43 is made of a rubber (RUBBER) having its own elastic force and is disposed along the groove (41). The sealing member 43 is provided with an insertion groove 43a in the longitudinal direction so that the insertion protrusion 42 is inserted in the state in which the groove 41 is disposed. Therefore, when the insertion protrusion 42 is inserted into the insertion groove 43a, the sealing member 43 is pressed while contacting the bottom surface of the insertion protrusion 42 and the groove 41. In order to increase the sealing force of the sealing member 43, the pressing portion 43b is pressed against both sides of the insertion protrusion 42 while elastically deformed to both side walls of the insertion groove (43a) of the sealing member 43. Is formed. As a result, the inlet side width W2 of the insertion groove 43a is made narrower than the thickness T of the insertion protrusion 42 by the crimping portion 43b, which causes the sealing member to be inserted when the insertion protrusion 42 is inserted. 43 is compressed while elastically deformed.

또한, 고정수단(44)은 별도의 부재없이 커버(33)를 하우징(32)에 고정시키기 위한 것으로, 하우징(32)의 개방부 외측면을 따라 일정한 간격으로 형성된 걸림턱(44a)과, 이 걸림턱(44a)들이 탄성적으로 결합되도록 커버(33)의 스커트부(33a) 내벽에 형성된 걸림홈(44b)으로 이루어져 있다. 걸림턱(44a)은 플라스틱으로 사출 성형되는 하우징(32)의 제작 시 개방부 측면을 따라 일체로 구성하는 것이 바람직하다. 그리고 걸림홈(44b) 역시 플라스틱으로 사출 성형되어 소정의 탄성력을 갖는 커버(33)의 스커트부(33a)에 일체로 형성되어 있다. 또한, 커버(33)의 스커트부(33a) 선단은 걸림턱(44a)의 삽입이 용이하게 이루어지도록 테이퍼면(44c)으로 이루어져 있다. In addition, the fixing means 44 is for fixing the cover 33 to the housing 32 without a separate member, the locking step 44a formed at regular intervals along the outer surface of the opening of the housing 32, and The locking jaw 44a is composed of a locking groove 44b formed in the inner wall of the skirt portion 33a of the cover 33 so that the locking jaws 44a are elastically coupled to each other. The catching jaw 44a is preferably configured integrally along the opening side when the housing 32 is injection molded from plastic. In addition, the locking groove 44b is also integrally formed in the skirt portion 33a of the cover 33 by injection molding of plastic. In addition, the tip of the skirt portion 33a of the cover 33 has a tapered surface 44c to facilitate insertion of the locking jaw 44a.

다음에는 도 4와 도 5를 참조하여 이와 같이 구성된 본 발명에 따른 전자제어유닛의 커버 조립과정 및 이에 따른 효과를 설명한다.Next, with reference to Figures 4 and 5 will be described the cover assembly process and the effects of the electronic control unit according to the present invention configured as described above.

먼저, 하우징(32)의 개방단부에 형성된 그루브(41)를 따라 시일링부재(43)를 설치하되, 시일링부재(43)의 삽입홈(43a)이 개방되는 방향으로 설치한다. First, the sealing member 43 is installed along the groove 41 formed at the open end of the housing 32, but in the direction in which the insertion groove 43a of the sealing member 43 is opened.

그리고 하우징(32)의 개방단부에 커버(33)를 덮으면, 커버(33)의 바닥면(33b)에 형성된 삽입돌기(42)는 시일링부재(43)의 삽입홈(43a)내로 삽입됨과 동시에 걸림턱(44a)이 걸림홈(44b)내에 걸림으로써, 커버(33)는 하우징(32)을 밀봉하면서 견실하게 조립된다. When the cover 33 is covered at the open end of the housing 32, the insertion protrusion 42 formed on the bottom surface 33b of the cover 33 is inserted into the insertion groove 43a of the sealing member 43 and at the same time. When the locking jaw 44a is locked in the locking groove 44b, the cover 33 is firmly assembled while sealing the housing 32.

이 때, 삽입돌기(42)는 시일링부재(43)의 압착부(43b)를 탄성 변형시키면서 삽입홈(43a)내로 억지로 삽입된다. 즉, 삽입돌기(42)가 삽입홈(43a)내로 삽입됨에 따라, 시일링부재(43)는 탄성 변형되면서 삽입돌기(42)의 양측면 및 그루브(41)의 저면에 압착된다. 또한, 삽입돌기(42)가 삽입홈(43a)내로 삽입되는 과정에서 커버(33)의 스커트부(33a)는 탄성 변형되어, 걸림턱(44a)의 삽입을 허용한다(도 4참조). At this time, the insertion protrusion 42 is forcibly inserted into the insertion groove 43a while elastically deforming the pressing portion 43b of the sealing member 43. That is, as the insertion protrusion 42 is inserted into the insertion groove 43a, the sealing member 43 is pressed against both sides of the insertion protrusion 42 and the bottom surface of the groove 41 while being elastically deformed. In addition, in the process of inserting the insertion protrusion 42 into the insertion groove 43a, the skirt portion 33a of the cover 33 is elastically deformed to allow insertion of the locking jaw 44a (see FIG. 4).

계속하여 삽입돌기(41)가 완전하게 삽입되면, 걸림턱(44a)이 걸림홈(44b)내에 결합됨과 동시에 커버(33)의 스커트부(33a)가 복원된다(도 5참조).Subsequently, when the insertion protrusion 41 is completely inserted, the engaging jaw 44a is engaged in the engaging groove 44b and the skirt portion 33a of the cover 33 is restored (see FIG. 5).

이에 따라 걸림턱(44a)과 걸림홈(44b)을 통해 커버(33)가 하우징(32)의 개방부를 덮도록 고정되며, 아울러 그루브(41)를 따라 배치된 시일링부재(43)가 압착되면서 하우징(32)의 개방단부가 완전하게 밀봉되어 이물질 침투가 방지된다. Accordingly, the cover 33 is fixed to cover the opening of the housing 32 through the locking jaw 44a and the locking groove 44b, and the sealing member 43 disposed along the groove 41 is compressed. The open end of the housing 32 is completely sealed to prevent foreign matter from penetrating.

이상에서 상세히 설명한 바와 같이; 본 발명에 따른 전자제어식 브레이크 시스템용 전자제어유닛의 밀봉장치에 의하면, 하우징의 개방단부를 따라 오목하게 형성된 그루브와, 이 그루브를 따라 삽입되도록 커버의 바닥면에서 돌출되게 형성된 삽입돌기와, 그루브내에 배치되어 삽입돌기의 삽입에 따라 압착되는 시일링부재와, 삽입돌기가 그루브를 따라 삽입된 상태로 유지되도록 커버를 하우징에 탄성적으로 고정시키기 위한 고정수단을 구비하고 있다. 이에 따라 커버가 하우징의 개방단부에 원터치 방식으로 견실하게 고정됨과 동시에 시일링부재에 의해 하우징의 개방단부가 완전하게 밀봉됨으로써, 커버의 조립 작업이 보다 용이하게 이루어지며 이로 인해 전자제어식 브레이크 시스템의 제조비용을 절감시킬 수 있는 작용효과가 있다.As described in detail above; According to the sealing device of the electronic control unit for an electronically controlled brake system according to the present invention, a groove is formed concave along the open end of the housing, an insertion protrusion formed to protrude from the bottom surface of the cover to be inserted along the groove, and disposed in the groove. And a sealing member that is compressed according to the insertion of the insertion protrusion, and a fixing means for elastically fixing the cover to the housing so that the insertion protrusion is maintained in the inserted state along the groove. Accordingly, the cover is firmly fixed to the open end of the housing in a one-touch manner, and the open end of the housing is completely sealed by the sealing member, thereby making the assembly of the cover easier, thereby manufacturing the electronically controlled brake system. There is an effect that can reduce the cost.

Claims (4)

모듈레이터블럭에 마운팅볼트를 통해 장착되며 내부에 솔레노이드밸브의 코일조립체 및 회로기판이 설치되도록 개방공간이 형성된 하우징과, 상기 회로기판이 설치된 상기 하우징의 개방단을 덮도록 가장자리를 따라 스커트부가 형성된 커버와, 상기 커버를 상기 하우징의 개방단부에 밀봉하기 위한 밀봉장치를 갖춘 전자제어식 브레이크 시스템의 전자제어유닛에 있어서,A cover mounted on the modulator block through a mounting bolt and having an open space formed therein so that the coil assembly and the circuit board of the solenoid valve are installed, and a cover formed with a skirt along an edge to cover the open end of the housing where the circuit board is installed; An electronic control unit of an electronically controlled brake system having a sealing device for sealing the cover to an open end of the housing, 상기 밀봉장치는, The sealing device, 상기 하우징의 개방단부를 따라 오목하게 형성된 그루브와,A groove formed concave along the open end of the housing, 상기 그루브를 따라 삽입되도록 상기 커버의 바닥면에서 돌출되게 형성된 삽입돌기와, An insertion protrusion formed to protrude from the bottom surface of the cover to be inserted along the groove; 상기 그루브내에 배치되어 상기 삽입돌기의 삽입에 따라 압착되는 시일링부재와, A sealing member disposed in the groove and compressed according to the insertion of the insertion protrusion; 상기 삽입돌기가 상기 그루브를 따라 삽입된 상태로 유지되도록 상기 커버를 상기 하우징에 탄성적으로 고정시키기 위한 고정수단을 구비하며,A fixing means for elastically fixing the cover to the housing such that the insertion protrusion is maintained in an inserted state along the groove, 상기 시일링부재는 상기 그루브내에 배치된 상태에서 상기 삽입돌기가 삽입되도록 길이방향으로 삽입홈이 형성되어,The sealing member has an insertion groove formed in the longitudinal direction so that the insertion projection is inserted in the state arranged in the groove, 상기 삽입돌기가 상기 삽입홈내로 삽입되는 과정에서 상기 삽입돌기 및 그루브의 저면에 압착되는 것을 특징으로 하는 전자제어식 브레이크 시스템용 전자제어유닛의 밀봉장치.Sealing device of the electronic control unit for an electronically controlled brake system, characterized in that the insertion projection is pressed into the bottom surface of the insertion projection and the groove in the process of being inserted into the insertion groove. 삭제delete 제 1항에 있어서,The method of claim 1, 상기 시일링부재의 삽입홈 양 측벽에는 상기 삽입돌기의 삽입 시 탄성 변형되면서 상기 삽입돌기의 양 측면에 압착되도록 압착부가 돌출되게 형성된 것을 특징으로 하는 전자제어식 브레이크 시스템용 전자제어유닛의 밀봉장치.Both sides of the insertion groove of the sealing member sealing device of the electronic control unit for an electronically controlled brake system, characterized in that the pressing portion is formed so as to protrude on both sides of the insertion protrusion while elastically deformed when the insertion protrusion is inserted. 제 1항에 있어서,The method of claim 1, 상기 고정수단은,The fixing means, 상기 하우징의 개방부 외측면을 따라 일정한 간격으로 돌출되게 형성된 다수개의 걸림턱과,A plurality of locking jaws formed to protrude at regular intervals along the outer surface of the opening of the housing; 상기 걸림턱들이 결합되도록 상기 커버의 스커트부 내벽을 따라 형성된 걸림홈으로 이루어 진 것을 특징으로 하는 전자제어식 브레이크 시스템용 전자제어유닛의 밀봉장치.Sealing device of the electronic control unit for an electronically controlled brake system, characterized in that the locking groove is formed along the inner wall of the skirt portion of the cover so that the engaging jaw is coupled.
KR1020020007652A 2002-02-09 2002-02-09 A housing sealing arrangement of electrical control unit for electronic control brake system KR100759878B1 (en)

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