KR20070052614A - Solenoid valve for electronic control brake system - Google Patents

Solenoid valve for electronic control brake system Download PDF

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Publication number
KR20070052614A
KR20070052614A KR1020050110439A KR20050110439A KR20070052614A KR 20070052614 A KR20070052614 A KR 20070052614A KR 1020050110439 A KR1020050110439 A KR 1020050110439A KR 20050110439 A KR20050110439 A KR 20050110439A KR 20070052614 A KR20070052614 A KR 20070052614A
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South Korea
Prior art keywords
coil
solenoid valve
bobbin
sleeve
brake system
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KR1020050110439A
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Korean (ko)
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KR101015211B1 (en
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윤현섭
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주식회사 만도
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Priority to KR1020050110439A priority Critical patent/KR101015211B1/en
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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
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
    • 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
    • B60T13/10—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 fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • F16K31/0658—Armature and valve member being one single element
    • F16K31/0662—Armature and valve member being one single element with a ball-shaped valve member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Regulating Braking Force (AREA)

Abstract

본발명은 보빈의 형상을 단순화하고 자기력의 편차를 줄일 수 있는 구조를 구비한 전자제어식 브레이크시스템용 솔레노이드 밸브를 제공하는 것이다.The present invention is to provide a solenoid valve for an electronically controlled brake system having a structure that can simplify the shape of the bobbin and reduce the variation of the magnetic force.

이를 위해 본발명에 따른 전자제어식 브레이크시스템용 솔레노이드밸브는 아마추어가 진퇴운동 가능하게 내장된 슬리브를 구비하며, 유압블록에 압입되는 밸브조립체와; 슬리브의 일단에 압입되는 보빈과; 슬리브의 외경에 권선되어 아마추어를 작동시키기 위해 전자기력을 형성하는 코일과; 보빈 및 코일을 감싸는 코일케이스를 포함하는 구성으로 이루어진다.To this end, the solenoid valve for an electronically controlled brake system according to the present invention includes a valve assembly having a sleeve in which an armature can move forward and backward, and press-fitted into a hydraulic block; A bobbin pressed into one end of the sleeve; A coil wound around the outer diameter of the sleeve to form an electromagnetic force for operating the armature; It consists of a configuration including a coil case surrounding the bobbin and the coil.

Description

전자제어식 브레이크시스템용 솔레노이드밸브{solenoid valve for electronic control brake system}Solenoid valve for electronic control brake system

도1은 본 발명에 의한 전자제어식 안티록 브레이크 시스템용 솔레노이드밸브의 장착구조를 보인 단면도이다.1 is a cross-sectional view showing a mounting structure of a solenoid valve for an electronically controlled anti-lock brake system according to the present invention.

도2는 본 발명에 의한 전자제어식 안티록 브레이크 시스템용 솔레노이드밸브의 단면도이다.2 is a cross-sectional view of a solenoid valve for an electronically controlled anti-lock brake system according to the present invention.

도3은 본 발명에 의한 전자제어식 안티록 브레이크 시스템용 솔레노이드밸브의 분해사시도이다.3 is an exploded perspective view of a solenoid valve for an electronically controlled anti-lock brake system according to the present invention.

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

11 : ECU하우징, 20 : 솔레노이드밸브, 11: ECU housing, 20: Solenoid valve,

22 : 아마추어, 23 : 슬리브,22: amateur, 23: sleeve,

24 : 마그네트코어, 25 : 밸브시트,24: magnet core, 25: valve seat,

30 : 밸브조립체, 40 : 코일,30: valve assembly, 40: coil,

41 : 코일케이스, 50 : 보빈,41: coil case, 50: bobbin,

60 : 모듈레이터블럭.60: Modulator block.

본 발명은 전자제어식 브레이크 시스템용 솔레노이드밸브에 관한 것으로, 슬리브의 외경에 코일을 직접 와인딩하는 구조를 구비한 전자제어식 브레이크 시스템용 솔레노이드밸브를 제공하는 것이다.The present invention relates to a solenoid valve for an electronically controlled brake system, and to provide a solenoid valve for an electronically controlled brake system having a structure in which a coil is directly wound on an outer diameter of a sleeve.

일반적으로 전자제어식 브레이크 시스템은 차량의 슬립현상을 효율적으로 방지하여 강력하고 안정된 제동력을 얻기 위한 것으로, 제동시 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, 차량의 주행속도 및 조향 휠의 회전각도에 따라 제동유압을 제어하여 차량의 주행 안정성을 확보하기 위한 액티브 브레이크 콘트롤 시스템(Active Brake Control System: ABCS)의 기능을 갖춘 브레이크 시스템이 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) which prevents the sliding of the wheel during braking and Brake Traction Control System (BTCS) which prevents slippage of driving wheel during sudden start or acceleration and braking hydraulic pressure is controlled according to the traveling speed of the vehicle and the rotation angle of steering wheel to secure driving stability of the vehicle. A brake system having a function of an active brake control system (ABCS) is disclosed.

이러한 전자제어식 브레이크 시스템은 차량의 휠브레이크 측으로 전달되는 제동오일을 제어하기 위한 다수개의 솔레노이드밸브와, 제동오일을 일시 저장하는 저압어큐뮬레이터와, 저압어큐뮬레이터에 일시 저장된 제동오일을 강제 펌핑하기 위한 펌프와, 펌프에서 펌핑되는 제동오일의 압력맥동을 저감시키기 위한 고압어큐뮬레이터와, 솔레노이드밸브 및 펌프 구동을 전기적으로 제어하기 위한 전기제어장치(이하에서는 ECU라 칭함)를 포함하고 있다.The electronically controlled brake system includes a plurality of solenoid valves for controlling braking oil delivered to the wheel brake side of the vehicle, a low pressure accumulator for temporarily storing the braking oil, a pump for forcibly pumping the braking oil temporarily stored in the low pressure accumulator, A high pressure accumulator for reducing the pressure pulsation of the braking oil pumped by the pump, and an electric control device (hereinafter referred to as ECU) for electrically controlling the solenoid valve and the pump drive are included.

이러한 솔레노이드밸브의 밸브조립체와 어큐뮬레이터 및 펌프 등은 알루미늄재의 모듈레이터블럭에 콤팩트하게 설치되며, ECU는 내부에 솔레노이드밸브의 코일 조립체와 회로기판이 내장된 하우징을 구비하여 유압블럭과 볼트결합된다.The valve assembly, the accumulator and the pump of the solenoid valve are compactly installed in the modulator block made of aluminum, and the ECU is bolted to the hydraulic block having a housing in which the solenoid valve coil assembly and the circuit board are built.

이와 같은 종래의 전자제어식 브레이크시스템용 솔레노이드밸브는 코일이 권선되어 전원이 인가되면 전기장을 형성시키는 코일조립체와 코일조립체에 형성된 전기장에 의해 유로를 개폐하는 밸브조립체로 구비되어 있는데, 밸브조립체를 알루미늄 재질의 모듈레이터블럭에 압입 설치시킨 후 ECU에 부착된 코일조립체가 밸브조립체에 삽입설치된다.Such a solenoid valve for an electronically controlled brake system is provided with a coil assembly for winding an coil and forming an electric field when power is applied, and a valve assembly for opening and closing a flow path by an electric field formed in the coil assembly. The valve assembly is made of aluminum. The coil assembly attached to the ECU is inserted into and installed in the valve assembly after press-fitting to the modulator block.

상기한 종래의 전자제어식 브레이크시스템용 솔레노이드밸브는 한국공개특허(공개번호10-2003-20108)에 개시되어 있으며 그 기술내용은 본원의 종래기술에 포함되는 것으로 한다. The conventional solenoid valve for an electronically controlled brake system is disclosed in Korean Patent Laid-Open Publication No. 10-2003-20108, the description of which is to be included in the prior art of the present application.

이러한 종래의 전자제어식 브레이크시스템의 솔레노이드밸브의 조립에 있어서 코일조립체는 코일이 권선된 원통형상의 보빈과 보빈을 수용하는 상부 및 하부 코일케이스를 포함하여 구성되는데, 이때 보빈은 코일을 감을 수 있도록 복잡한 구조로 형성되고, 보빈을 수용하는 상부 및 하부 코일케이스가 마련되어야 하므로 제조원가가 상승하는 문제점이 있다. In assembling the solenoid valve of the conventional electronically controlled brake system, the coil assembly includes a cylindrical bobbin wound with coils and upper and lower coil cases accommodating bobbins, wherein the bobbin has a complicated structure to wind the coil. Since the upper and lower coil cases to be formed to accommodate the bobbin should be provided, there is a problem that the manufacturing cost rises.

또한 밸브조립체와 코일조립체와의 조립시 밸브조립체에 대한 코일조립체의 위치가 밸브마다 다르게 형성될 수 있고, 또한 코일조립체 제작시의 조립공차에 의하여도 보빈 및 코일케이스의 위치가 솔레노이드밸브 내에서 가변될 수 있다. 이러한 경우 솔레노이드밸브에 전압을 인가시 형성되는 자기력에 편차가 발생하는 문제점이 있다. 또한 차량의 운동으로 인해 진동이 발생하는 경우 코일조립체가 미세하게 움직이게 되고 그에 따라 솔레노이드밸브의 작동이 불안정하게 되는 문제점이 다. In addition, when assembling the valve assembly and the coil assembly, the position of the coil assembly with respect to the valve assembly may be different for each valve, and the position of the bobbin and the coil case may be variable within the solenoid valve due to assembly tolerances in the manufacture of the coil assembly. Can be. In this case, there is a problem that a deviation occurs in the magnetic force formed when a voltage is applied to the solenoid valve. In addition, when the vibration occurs due to the movement of the vehicle, the coil assembly is finely moved and thus the operation of the solenoid valve is unstable.

또한 슬리브와 코일사이에 마련되는 보빈으로 인해 자기력이 감소되므로 종래의 솔레노이드밸브는 필요한 소정의 자기력을 발생시키기 위해 권선되는 코일의 턴수를 줄이는 데 한계가 있는 구조로써 솔레노이드밸브를 보다 컴팩트하게 구성하기가 곤란한 문제점이 있다. In addition, since the magnetic force is reduced due to the bobbin provided between the sleeve and the coil, the conventional solenoid valve has a limit in reducing the number of turns of the coil wound in order to generate the required magnetic force. There is a difficult problem.

본 발명은 이러한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 보빈의 형상을 단순화하고 자기력의 편차를 줄일 수 있는 구조를 구비한 전자제어식 브레이크시스템용 솔레노이드 밸브를 제공하는 것이다.The present invention is to solve this problem, an object of the present invention to provide a solenoid valve for an electronically controlled brake system having a structure that can simplify the shape of the bobbin and reduce the deviation of the magnetic force.

이러한 목적을 달성하기 위한 본 발명에 따른 전자제어식 브레이크시스템용 솔레노이드밸브는 유로를 개폐할 수 있도록 아마추어가 진퇴운동 가능하게 내장된 슬리브를 구비하며, 유압블록에 압입되는 밸브조립체와; 상기 슬리브의 일단에 압입되는 보빈과; 상기 슬리브의 외경에 권선되어 상기 아마추어를 작동시키기 위해 전자기력을 형성하는 코일과; 상기 보빈 및 상기 코일을 감싸는 코일케이스를 포함하는 것을 특징으로 한다.Solenoid valve for electronically controlled brake system according to the present invention for achieving the above object has a sleeve that is equipped with an armature to enable the opening and closing movement of the arm to open and close the flow path, the valve assembly is pressed into the hydraulic block; A bobbin pressed into one end of the sleeve; A coil wound around an outer diameter of the sleeve to form an electromagnetic force to operate the armature; It characterized in that it comprises a coil case surrounding the bobbin and the coil.

또한, 상기 슬리브의 타단은 외측으로 절곡부가 형성되어 상기 코일은 상기 절곡부와 상기 보빈사이에서 소정두께로 권선되는 것을 특징으로 한다.In addition, the other end of the sleeve is bent to the outside is formed, the coil is characterized in that the winding to a predetermined thickness between the bent portion and the bobbin.

또한, 상기 보빈의 상부에는 상기 보빈의 견고한 고정을 위하여 고정보스가 마련된 것을 특징으로 한다. In addition, the upper portion of the bobbin is characterized in that the high information is provided for firm fixing of the bobbin.

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 1을 참조하면, 본 발명에 따른 전자제어식 브레이크 시스템은 수평면(11a)과 수직한 벽면(11b)이 마련되며 상하부가 개방된 ECU 하우징(11)과, 이 ECU 하우징(11)의 상측공간에 장착되는 회로기판(12)과, 이 회로기판(12)과 ECU 하우징(11)의 개방부를 덮는 커버(13)를 구비하여, ECU하우징(11) 내의 전기 전자 부품들이 안티록 브레이크 시스템을 전체적으로 제어하게 된다. Referring to FIG. 1, the electronically controlled brake system according to the present invention includes an ECU housing 11 having a vertical wall surface 11b perpendicular to a horizontal surface 11a and an upper and lower portions thereof, and an upper space of the ECU housing 11. With a circuit board 12 to be mounted and a cover 13 covering the circuit board 12 and the opening of the ECU housing 11, the electrical and electronic components in the ECU housing 11 control the antilock brake system as a whole. Done.

그리고 ECU 하우징(11)의 하부에는 다수의 노말오픈형 및 노말클로즈형 솔레노이드밸브(20)와, 한 쌍의 펌프(미도시)와, 저압 및 고압어큐뮬레이터(미도시) 등이 콤팩트하게 내장된 모듈레이터블럭(60)이 마운팅 볼트(미도시)를 통해 결합된다. In the lower part of the ECU housing 11, a plurality of normally open and normally closed solenoid valves 20, a pair of pumps (not shown), low pressure and high pressure accumulators (not shown), etc. are compactly mounted modulator blocks. 60 is coupled via a mounting bolt (not shown).

또한 솔레노이드밸브(20)는 오리피스(21)를 개폐하도록 아마추어(22)가 진퇴운동 가능하게 내장된 슬리브(23)를 갖춘 밸브조립체(30)와, 슬리브(23)의 일단에 압입고정되는 보빈(50)과, ECU로부터 전원인가 시 형성되는 전자기력으로 아마추어(22)를 작동시키기 위해 슬리브(23)의 외경에 권선되는 코일(40)과, 코일을 감싸는 코일케이스(41)를 포함한다. The solenoid valve 20 also includes a valve assembly 30 having a sleeve 23 in which an armature 22 is removably mounted to open and close the orifice 21, and a bobbin press-fitted to one end of the sleeve 23. 50 and a coil 40 wound around the outer diameter of the sleeve 23 to operate the armature 22 by the electromagnetic force generated when the power is applied from the ECU, and a coil case 41 surrounding the coil.

도2는 본 발명에 의한 전자제어식 브레이크 시스템용 솔레노이드밸브(20)의 단면도이다. 도 2, 3을 참조하여 본 발명에 의한 솔레노이드밸브(20)의 상세한 구조에 대하여 설명한다.2 is a cross-sectional view of a solenoid valve 20 for an electronically controlled brake system according to the present invention. 2 and 3, the detailed structure of the solenoid valve 20 according to the present invention will be described.

먼저 밸브조립체(30)는 원통형상의 슬리브(23)와, 슬리브(23)의 내부에서 코 일(40)에 의해 형성된 전자장에 의해 상하로 이동하는 아마추어(22)와, 아마추어(22)의 일단에 설치되며 슬리브(23)의 내주면에 고정되고 중공부(24a)가 마련된 마그네트코어(24)와, 마그네트코어(24)의 중공부(24a) 하측에 마련되어 제동오일의 유입과 유출을 위한 오리피스(21)가 구비된 밸브시트(25)를 포함하여 이루어진다.First, the valve assembly 30 has a cylindrical sleeve 23, an armature 22 which moves up and down by an electromagnetic field formed by the coil 40 inside the sleeve 23, and one end of the armature 22. The magnet core 24 is installed and fixed to the inner circumferential surface of the sleeve 23 and provided with a hollow portion 24a, and an orifice 21 provided under the hollow portion 24a of the magnet core 24 for inflow and outflow of the braking oil. ) Is provided with a valve seat 25 is provided.

여기서 슬리브(23)는 내부가 중공되고 일단이 개방된 원통형상으로, 개방된 일단은 반경방향 외측으로 절곡부(23a)를 형성하여 슬리브(23)의 절곡부(23a)가 마그네트코어(24)의 단차부(24b)에 결합되도록 한다.Here, the sleeve 23 has a cylindrical shape in which the inside is hollow and one end is opened, and the open end is formed with a bent portion 23a radially outward so that the bent portion 23a of the sleeve 23 is the magnet core 24. To be coupled to the stepped portion 24b.

또한 본발명에 의한 전자제어식 브레이크시스템용 솔레노이드밸브(20)의 보빈(50)은 플라스틱재로 사출 성형공정을 통해 제조되는데. 제조과정에서 상부에 리드선(51)이 길이방향으로 인서트 고정된다. 또한 보빈(50)은 내부에 중공부(52)가 형성된 원형의 고리형상으로 상부에는 대칭되게 제1고정보스(53)와 제2고정보스(54)가 마련되는데, 이들은 ECU하우징(11)의 수평면(11a)에 끼워져 보빈(50)이 견실하게 고정되고 ECU 하우징(11)에 솔레노이드밸브(20)의 상부가 안착된다. 이러한 보빈(50)은 슬리브(23)의 타단의 외경에 압입 결합되어 슬리브(23)의 절곡부(23a)와 보빈(50)사이에 코일(40)이 권선되도록 한다.In addition, the bobbin 50 of the solenoid valve 20 for the electronically controlled brake system according to the present invention is manufactured through a plastic injection molding process. In the manufacturing process, the lead wire 51 is inserted and fixed in the longitudinal direction. In addition, the bobbin 50 has a circular annular shape in which a hollow part 52 is formed therein, and is provided with a first high information 53 and a second high information 54 symmetrically at an upper part thereof. The bobbin 50 is firmly fixed to the horizontal plane 11a, and the upper portion of the solenoid valve 20 is seated in the ECU housing 11. The bobbin 50 is press-fitted to the outer diameter of the other end of the sleeve 23 so that the coil 40 is wound between the bent portion 23a of the sleeve 23 and the bobbin 50.

또한 코일케이스(41)는 코일(40) 및 보빈(50)을 감싸도록 결합되며 하부가 개방된 원통 형상으로 마련되어 있다. 이 때, 코일케이스(41)의 상면 중심부에는 밸브조립체(30)의 슬리브(23)가 관통하여 삽입되도록 삽입공(42)이 형성되어 있다. 또한, 코일케이스(41)의 상면 양측에는 제1, 2고정보스(53,54)가 여유있게 관통할 수 있도록 관통홀(43)이 대칭되게 형성되어 있다. In addition, the coil case 41 is coupled to surround the coil 40 and the bobbin 50 and is provided in a cylindrical shape with an open lower portion. At this time, the insertion hole 42 is formed in the center of the upper surface of the coil case 41 so that the sleeve 23 of the valve assembly 30 penetrates. In addition, the through holes 43 are symmetrically formed on both sides of the upper surface of the coil case 41 so that the first and second high information sources 53 and 54 can be penetrated with ease.

다음에는 이와 같이 구성된 본 발명에 따른 전자제어식 브레이크시스템용 솔레노이드밸브(20)의 조립과정 및 이에 따른 효과를 도 2과 도3를 참조하여 설명한다. Next, the assembling process and effects thereof of the solenoid valve 20 for an electronically controlled brake system according to the present invention configured as described above will be described with reference to FIGS. 2 and 3.

먼저 밸브조립체(30)의 슬리브(23)의 개방된 일단은 반경방향 외측으로 절곡부(23a)를 형성하여 슬리브(23)의 절곡부(23a)가 마그네트코어(24)의 단차부(24b)에 결합되도록 하고, 보빈(50)은 슬리브(23)의 타단에 압입설치한다.First, the open end of the sleeve 23 of the valve assembly 30 forms a bent portion 23a radially outward so that the bent portion 23a of the sleeve 23 is a stepped portion 24b of the magnet core 24. To be coupled to, the bobbin 50 is press-installed on the other end of the sleeve (23).

이때 코일(40)은 슬리브(23)의 절곡부(23a)와 보빈(50)사이에서 슬리브(23)의 외경에 직접 권선되도록 한다. In this case, the coil 40 is wound directly on the outer diameter of the sleeve 23 between the bent portion 23a and the bobbin 50 of the sleeve 23.

또한 코일케이스(41)는 코일(40)이 권선된 슬리브(23)와 보빈(50)을 감싸도록 밸브조립체(30)의 마그네트코어(24)의 외경부(24c)에 압입고정된다. In addition, the coil case 41 is press-fitted to the outer diameter portion 24c of the magnet core 24 of the valve assembly 30 so as to surround the sleeve 23 and the bobbin 50 on which the coil 40 is wound.

이 때, 코일(40)은 슬리브(23)의 외경에 직접 권선되기 때문에 보빈에 코일이 권선된 종래 솔레노이드밸브보다 자기력의 증가를 가져오게 되어, 솔레노이드밸브(20)의 컴팩트화가 가능하게 되고, 보빈의 형상이 단순하게 되어 제조원가를 절감할 수 있다.At this time, since the coil 40 is directly wound to the outer diameter of the sleeve 23, the magnetic force is increased compared to the conventional solenoid valve in which the coil is wound on the bobbin, so that the solenoid valve 20 can be made compact. It is possible to reduce the manufacturing cost by simplifying the shape of.

또한 본발명에 의한 솔레노이드 밸브(20)는 밸브조립체와 코일조립체를 별도의 서브조립체로 형성하여 이를 결합하는 종래의 솔레노이드밸브에 비해 밸브조립체(30)에 코일(40)을 일체로 형성시킴으로써 서브조립체의 결합시 발생할 수 있는 위치편차로 인한 자기력의 편차를 감소시킬 수 있어 솔레노이드밸브가 항상 일정한 성능을 유지하게 할 수 있다.In addition, the solenoid valve 20 according to the present invention forms the valve assembly and the coil assembly as a separate sub-assembly by forming the coil 40 in the valve assembly 30 as compared to the conventional solenoid valve that combines the sub-assembly integrally It is possible to reduce the deviation of the magnetic force due to the positional deviation that can occur at the combination of the two can ensure that the solenoid valve always maintains a constant performance.

또한 차량에 진동이 가해지는 경우에도 밸브조립체(30)에 대한 코일(40)의 상대위치가 일정하게 유지되므로 본발명의 솔레노이드밸브는 보다 안정된 성능을 발휘할 수 있다.In addition, even when vibration is applied to the vehicle, the relative position of the coil 40 with respect to the valve assembly 30 is kept constant, so that the solenoid valve of the present invention can exhibit more stable performance.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 전자제어식 브레이크시스템용 솔레노이드밸브는 슬리브의 외경에 코일이 직접 권선되도록 함으로써, 보빈의 형상을 단순화하여 제조비용을 절감할 수 있는 효과가 있으며, 자기력이 향상되어 솔레노이드밸브를 보다 컴팩트하게 구성하는 것이 가능한 효과가 있다.As described in detail above, the solenoid valve for the electronically controlled brake system according to the present invention has the effect of reducing the manufacturing cost by simplifying the shape of the bobbin by winding the coil directly on the outer diameter of the sleeve, and improves the magnetic force Therefore, it is possible to configure the solenoid valve more compactly.

또한 코일이 밸브조립체에 일체로 형성되어 제조공정시 자기력의 편차를 감소시킬 수 있고, 차량의 진동이 발생하는 경우에도 보다 안정된 성능을 발휘할 수 있는 효과가 있다.In addition, the coil is integrally formed in the valve assembly to reduce the variation of the magnetic force during the manufacturing process, there is an effect that can exhibit a more stable performance even when the vibration of the vehicle occurs.

Claims (3)

유로를 개폐할 수 있도록 아마추어가 진퇴운동 가능하게 내장된 슬리브를 구비하며, 유압블록에 압입되는 밸브조립체와;A valve assembly having a sleeve in which the armature can move back and forth to open and close the flow path, the valve assembly being pushed into the hydraulic block; 상기 슬리브의 일단에 압입되는 보빈과;A bobbin pressed into one end of the sleeve; 상기 슬리브의 외경에 권선되어 상기 아마추어를 작동시키기 위해 전자기력을 형성하는 코일과;A coil wound around an outer diameter of the sleeve to form an electromagnetic force to operate the armature; 상기 보빈 및 상기 코일을 감싸는 코일케이스를 포함하는 전자제어식 브레이크 시스템용 솔레노이드 밸브. Solenoid valve for an electronically controlled brake system comprising the coil case surrounding the bobbin and the coil. 제1항에 있어서, 상기 슬리브의 타단은 외측으로 절곡부가 형성되어 상기 코일은 상기 절곡부와 상기 보빈사이에서 소정두께로 권선되는 것을 특징으로 하는 전자제어식 브레이크 시스템용 솔레노이드 밸브. The solenoid valve of claim 1, wherein the other end of the sleeve is bent to the outside so that the coil is wound to a predetermined thickness between the bent portion and the bobbin. 제2항에 있어서, 상기 보빈의 상부에는 상기 보빈의 견고한 고정을 위하여 고정보스가 마련된 것을 특징으로 하는 전자제어식 브레이크 시스템용 솔레노이드 밸브. The solenoid valve for an electronically controlled brake system according to claim 2, wherein a high information is provided on the upper part of the bobbin to secure the bobbin.
KR1020050110439A 2005-11-17 2005-11-17 solenoid valve for electronic control brake system KR101015211B1 (en)

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US6498558B1 (en) 2001-05-08 2002-12-24 Kelsey-Hayes Company Solenoid valve coil having an integrated bobbin and flux ring assembly
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