KR100881593B1 - Valve for anti-lock brake system - Google Patents

Valve for anti-lock brake system Download PDF

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Publication number
KR100881593B1
KR100881593B1 KR1020070116369A KR20070116369A KR100881593B1 KR 100881593 B1 KR100881593 B1 KR 100881593B1 KR 1020070116369 A KR1020070116369 A KR 1020070116369A KR 20070116369 A KR20070116369 A KR 20070116369A KR 100881593 B1 KR100881593 B1 KR 100881593B1
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KR
South Korea
Prior art keywords
valve
sleeve
valve housing
brake system
valve core
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Application number
KR1020070116369A
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Korean (ko)
Inventor
이충재
최욱진
김용갑
Original Assignee
주식회사 만도
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Application filed by 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020070116369A priority Critical patent/KR100881593B1/en
Priority to US12/110,713 priority patent/US7866625B2/en
Priority to DE102008023112A priority patent/DE102008023112A1/en
Priority to CN2008100970905A priority patent/CN101407217B/en
Application granted granted Critical
Publication of KR100881593B1 publication Critical patent/KR100881593B1/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
    • 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
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • 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)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Regulating Braking Force (AREA)

Abstract

A valve for the antilock brake system is provided that the sleeve can be assembled through the plastic process since the combining groove is formed in the outer circumference of the valve housing and valve core, and the combining projection is formed in the inner circumference of sleeve. A valve for the antilock brake system comprises an armature(23) positioned in the lower part of the valve core(25), a cylindrical sleeve(24) which guides armature, a valve housing(22) in which inlet(30a) and outlet(30b) having a filter(22d) are formed, a first elastic member(26) installed between the valve core and amateur, a sheet plunger(27) in which a first orifice (27a) opened and closed by opening and closing part is formed, a second elastic member(28) installed between the sheet plunger and valve housing. Combining grooves(22b,25a) are formed in the outer circumference of the valve housing and valve core. Combining projections(24a,24b) are formed at the inner circumference of sleeve in order to correspond to the combining groove.

Description

안티록 브레이크 시스템용 밸브{valve for Anti-lock brake system}Valve for Anti-lock brake system

도 1은 종래 안티록 브레이크 시스템용 밸브의 구성을 보인 단면도이다.1 is a cross-sectional view showing the configuration of a valve for a conventional anti-lock brake system.

도 2는 본 발명에 따른 안티록 브레이크 시스템용 밸브의 구성을 보인 단면도이다.2 is a cross-sectional view showing the configuration of a valve for an antilock brake system according to the present invention.

도 3은 도 2의 A부분에 대한 확대도이다. 3 is an enlarged view of a portion A of FIG. 2.

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

20 : 밸브 21 : 모듈레이터블럭20: valve 21: modulator block

22 : 밸브하우징 23 : 아마츄어22: valve housing 23: amateur

24 : 슬리브 25 : 밸브코어24: sleeve 25: valve core

27 : 시트 플런저 27: seat plunger

본 발명은 안티록 브레이크 시스템용 밸브에 관한 것으로, 더욱 상세하게는 밸브하우징의 구조 개선을 통해 생산원가가 절감되도록 하는 안티록 브레이크 시스템용 밸브에 관한 것이다. The present invention relates to a valve for an antilock brake system, and more particularly, to an antilock brake system valve for reducing the production cost by improving the structure of the valve housing.

일반적인 차량의 유압브레이크는 브레이크 페달의 작동에 의해 마스터 실린 더에 유압이 인가되어 제동이 이루어지는데, 이때 타이어에 노면과 타이어사이의 정지마찰력보다 큰 제동력이 가해질 경우 타이어가 노면에서 미끄러지는 슬립현상이 발생된다.  In general, the hydraulic brake of a vehicle is braked by applying hydraulic pressure to the master cylinder by the operation of the brake pedal. When the tire is applied with a braking force greater than the static friction force between the road surface and the tire, slippage of the tire slips on the road surface. Is generated.

그러나, 운동마찰계수는 정지마찰계수보다 작으므로 최상의 제동이 이루어지기 위해서는 이러한 슬립현상이 방지되어야 되고, 또한 브레이크 작동시 핸들제어가 불가능하게 되는 핸들잠김현상은 방지되어야 한다.However, since the motion friction coefficient is smaller than the static friction coefficient, such slip phenomenon must be prevented in order to achieve the best braking, and the handle locking phenomenon that the handle control becomes impossible during brake operation must be prevented.

따라서, 마스터 실린더에 가해지는 유압을 제어하여 이러한 현상을 방지하는 것이 ABS(Anti-lock Brake System)로, 기본적으로 다수개의 솔레노이드 밸브와 이를 제어하기위한 ECU, 어큐뮬레이터, 유압펌프로 구성된다.Therefore, to prevent such a phenomenon by controlling the hydraulic pressure applied to the master cylinder is ABS (Anti-lock Brake System) is basically composed of a plurality of solenoid valves and ECU, accumulator, hydraulic pump for controlling them.

도 1을 참조하여 설명하면, 종래 솔레노이드밸브는 직접도를 높이기 위해 모듈레이터 블록(1)에 설치되며, 모듈레이터 블록(1)에는 밸브가 설치될 수 있도록 밸브 보어(2)가 절삭 가공된다.Referring to Figure 1, the conventional solenoid valve is installed in the modulator block (1) to increase the direct degree, the valve bore (2) is cut processing so that the valve can be installed in the modulator block (1).

이 밸브 보어(2)에는 모듈레이터 블록(1)에 형성된 내부 유로와 연결되는 입구와 출구가 형성된 중공의 밸브 하우징(3)이 설치된다.The valve bore 2 is provided with a hollow valve housing 3 having an inlet and an outlet connected to an internal flow path formed in the modulator block 1.

밸브하우징(3)의 일단에는 그 내부에 설치되는 아마츄어(4)가 진퇴할 수 있도록 원통형 슬리브(5)가 결합되며, 슬리브(5)의 개방된 단부에는 슬리브(5)의 개방된 부분을 폐쇄함과 동시에 아마츄어(4)를 진퇴시키기 위한 밸브코어(6)가 결합된다.A cylindrical sleeve 5 is coupled to one end of the valve housing 3 so that the armature 4 installed therein can be retracted, and the open end of the sleeve 5 is closed at the open end of the sleeve 5. At the same time, the valve core 6 for advancing and retracting the armature 4 is engaged.

또한, 아마츄어(4)는 진퇴운동을 통해 밸브시트(7)의 오리피스(7a)를 개폐하도록 중공부 내에 설치된 밸브시트(7) 쪽으로 연장되며, 이때 아마츄어(4)와 밸브 코어(6) 사이에는 아마츄어(4)에 탄성력을 부여하는 탄성부재(8)가 설치된다.In addition, the armature 4 extends toward the valve seat 7 provided in the hollow portion to open and close the orifice 7a of the valve seat 7 through a forward and backward movement, and between the armature 4 and the valve core 6 An elastic member 8 for providing an elastic force to the armature 4 is provided.

이러한 종래의 솔레노이드 밸브는 밸브하우징(3)에 각각 밸브의 입구와 출구를 형성하는 인렛(3a)과 아웃렛(3b)이 형성되고, 내부에 밸브시트(7)가 압입되는 구조이다.The conventional solenoid valve has a structure in which the inlet 3a and the outlet 3b are formed in the valve housing 3 to form the inlet and the outlet of the valve, respectively, and the valve seat 7 is press-fitted therein.

그러나, 이러한 구조는 밸브하우징(3)내에 밸브시트(7)가 탄성지지되도록 설치해야 하고 이러한 구조를 형성하기 위하여 밸브하우징(3)의 크기가 증가되며 밸브하우징(3)을 제작함에 있어 복잡한 형상의 절삭가공이 불가피하게 된다. However, this structure must be installed so that the valve seat 7 is elastically supported in the valve housing 3, and the size of the valve housing 3 is increased to form such a structure, and a complicated shape in manufacturing the valve housing 3 is required. Cutting is inevitable.

또한, 아마츄어(4)와 밸브코어(6)를 슬리브(5)와 결합함에 있어 각각의 접합부위를 전기용접을 통해 고정하는데, 이는 작업이 난해하여 제품의 생산원가를 증가시키게 되는 문제점이 있었다. In addition, in joining the armature (4) and the valve core (6) with the sleeve (5) to fix each of the joints by electrical welding, which is difficult to work, there is a problem that increases the production cost of the product.

본 발명은 이와 같은 문제점들을 해결하기 위한 것으로, 본 발명의 목적은 컴팩트한 구조로 이루어지고 절삭가공이 최소화되도록 하여 생산원가가 절감되도록 하는 안티록 브레이크 시스템용 솔레노이드밸브를 제공하는 것이다. The present invention is to solve the above problems, an object of the present invention is to provide a solenoid valve for an anti-lock brake system made of a compact structure and to minimize the cutting process to reduce the production cost.

이러한 목적을 달성하기 위한 본 발명은; 밸브코어; 상기 밸브코어의 하부에 위치하며 단부에 반구형의 개폐부가 형성된 아마츄어; 상기 밸브코어와 상기 아마츄어의 외주연에 결합되어 상기 아마츄어를 진퇴가능하게 안내하는 원통형 슬리브와, 상기 슬리브의 일단에 결합되고 내부에 길이방향의 중공이 형성되며 외주연과 하부에 각각 인렛과 아웃렛이 형성되고 상기 인렛에 필터가 마련되는 밸브하우징 과, 상기 밸브코어와 아마츄어사이에 설치되는 제1탄성부재와, 상기 중공에 진퇴가능하게 설치되며 상기 개폐부에 의해 개폐되는 제1오리피스가 형성된 시트 플런저와, 상기 시트 플런저의 상단과 상기 밸브하우징의 하단사이에 설치되는 제2탄성부재를 포함하는 것을 특징으로 한다.The present invention for achieving this object is; Valve core; An amateur positioned below the valve core and having a hemispherical opening and closing portion formed at an end thereof; A cylindrical sleeve coupled to the outer periphery of the valve core and the amateur to guide the armature forward and backward, coupled to one end of the sleeve and having a longitudinal hollow formed therein, and an inlet and an outlet at the outer periphery and the lower part, respectively A seat plunger formed with a valve housing formed with a filter in the inlet, a first elastic member installed between the valve core and the amateur, and a first orifice installed in the hollow so as to be retractable and opened and closed by the opening and closing portion; And a second elastic member installed between an upper end of the seat plunger and a lower end of the valve housing.

상기 밸브 코어와 밸브 하우징의 외주연에는 결합홈이 형성되고, 상기 슬리브의 내주연에는 상기 결합홈에 대응되도록 결합돌기가 형성되는 것을 특징으로 한다.A coupling groove is formed at an outer circumference of the valve core and the valve housing, and a coupling protrusion is formed at an inner circumference of the sleeve to correspond to the coupling groove.

상기 아웃렛에는 상기 시트 플런저의 진퇴에 따라 개폐되는 제2오리피스가 형성된 것을 특징으로 한다.The outlet may be formed with a second orifice that opens and closes as the seat plunger moves forward and backward.

상기 슬리브의 하부에는 수평방향으로 절곡형성된 플랜지부가 마련되는 것을 특징으로 한다.The lower portion of the sleeve is characterized in that the flange portion bent in the horizontal direction is provided.

상기 밸브하우징의 내주연에는 상기 제1탄성부재의 하단부를 지지하기 위하여 하단에 플랜지부가 형성된 슬리브 시트가 설치되는 것을 특징으로 한다.The inner periphery of the valve housing is characterized in that the sleeve seat is formed with a flange portion at the lower end to support the lower end of the first elastic member.

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.

본 발명에 따른 브레이크 시스템용 솔레노이드 밸브(20)는 도 2에 도시된 바와 같이 모듈레이터 블록(21)의 보어(21a)에 압입되어 설치되는 밸브 하우징(22)을 구비한다.The solenoid valve 20 for a brake system according to the present invention has a valve housing 22 which is press-fitted into the bore 21a of the modulator block 21 as shown in FIG. 2.

밸브하우징(22)의 일단에는 그 내부에 설치되는 아마츄어(23)가 진퇴할 수 있도록 원통형 슬리브(24)가 결합되며, 슬리브(24)의 개방된 단부에는 슬리브(24) 의 개방된 부분을 폐쇄함과 동시에 아마츄어(23)를 진퇴시키기 위한 밸브코어(25)가 결합된다.A cylindrical sleeve 24 is coupled to one end of the valve housing 22 so that the armature 23 installed therein can be retracted, and the open end of the sleeve 24 is closed at the open end of the sleeve 24. At the same time, the valve core 25 for advancing and retracting the armature 23 is engaged.

슬리브(24)에서 밸브하우징(22)과 밸브코어(25)와 결합을 형성하는 부위에는 내주연에 중심방향으로 돌출형성된 결합돌기(24a)(24b)가 마련되어 있고, 이에 대응하여 밸브하우징(22)과 밸브코어(25)의 외주연에는 결합홈(22b)(25a)이 형성되어 있어, 슬리브(24)내에 밸브하우징(22)와 밸브코어(25)를 설치할 때 걸림결합에 의해 결합되도록 한다.Coupling protrusions 24a and 24b protruding from the inner circumference of the sleeve 24 to the valve housing 22 and the valve core 25 are formed on the inner circumference thereof, and correspondingly, the valve housing 22 is provided. Coupling grooves 22b and 25a are formed at the outer circumference of the valve core 25 and the valve core 25 so that the valve housing 22 and the valve core 25 may be engaged by the engagement when the valve housing 22 and the valve core 25 are installed in the sleeve 24. .

이와 같이 걸림결합을 형성하는 결합돌기(24a)(24b)와 결합홈(22b)(25a)은 조립전 단계에서 슬리브(24), 밸브하우징(22) 및 밸브코어(25) 각각에 홈 또는 돌기 형상을 가공한 후 조립하는 구조로 이루어질 수 있으나, 조립과 가공과정을 간소화하기 위하여 슬리브(24)내에 밸브하우징(22) 및 밸브코어(25)를 조립한 상태에서 슬리브(24)의 외주연에 압력을 작용시켜 소성변형이 일어나도록 하여 형성하는 것이 바람직하다.The engaging projections 24a and 24b and the engaging grooves 22b and 25a forming the engaging engagement are grooves or protrusions in the sleeve 24, the valve housing 22 and the valve core 25, respectively, in the pre-assembly stage. It may be made of a structure that is assembled after processing the shape, but in order to simplify the assembly and processing process in the outer housing of the sleeve 24 in the state of assembling the valve housing 22 and the valve core 25 in the sleeve 24 It is preferable to form it by applying a pressure to cause plastic deformation.

이때 결합홈(22b)(25a) 및 결합돌기(24a)(24b)는 슬리브(24)의 외주연을 따라 전체적으로 형성되도록 하거나, 일정한 간격으로 배열되는 코킹과 같이 일정하게 배열되는 점형태로 형성될 수 도 있다. In this case, the coupling grooves 22b and 25a and the coupling protrusions 24a and 24b may be formed as a whole along the outer circumference of the sleeve 24 or may be formed in a dot shape that is uniformly arranged such as caulking arranged at regular intervals. Can also be.

또한, 슬리브(24)의 하부에는 수평방향으로 절곡형성된 플랜지부(24c)가 마련된다. 이 플랜지부(24c)는 밸브하우징(22)이 보어(21a)에 압입된 상태에서 밸브하우징(22)의 고정을 위하여 모듈레이터 블록(21)에서 보어(21a)의 상부를 내측으로 소성변형시킬 때 밸브하우징(22)과 함께 고정된다.In addition, the lower portion of the sleeve 24 is provided with a flange portion 24c bent in the horizontal direction. The flange portion 24c plastically deforms the upper portion of the bore 21a in the modulator block 21 to fix the valve housing 22 in a state where the valve housing 22 is press-fitted into the bore 21a. It is fixed together with the valve housing 22.

밸브코어(25)와 아마츄어(23)사이에는 아마츄어(23)에 하방으로 탄성력을 부여하는 제1탄성부재(26)가 설치되며, 아마츄어(23)의 하단에는 반구형상이 가공되어 있다.A first elastic member 26 is provided between the valve core 25 and the amateur 23 to impart an elastic force downward to the amateur 23, and a hemispherical shape is processed at the lower end of the amateur 23.

밸브 하우징(22)에는 길이방향의 중공(22a)이 형성되어 상기 아마츄어(23)가 진퇴운동할 수 있도록 안내함과 더불어 아마츄어(23)의 하방에는 아마츄어(23)의 진퇴에 따라 구체(23a)에 의해 개폐되는 제1오리피스(27a)가 형성된 시트 플런저(27)가 설치된다.The hollow housing 22a is formed in the valve housing 22 to guide the armature 23 to move forward and backward, and the lower portion of the armature 23a as the armature 23 moves downward under the armature 23. The seat plunger 27 in which the 1st orifice 27a which is opened and closed by this is formed is provided.

상기 시트 플런저(27)는 상기 아마츄어(23)와 마찬가지로 상기 중공(22a)에 의해 진퇴운동가능하게 지지되며 특히 밸브하우징(22)과 시트 플런저(27) 사이에는 시트 플런저(27)에 상방으로 탄성력을 부여하기 위한 제2탄성부재(28)가 설치된다.The seat plunger 27, like the armature 23, is supported by the hollow 22a so as to be movable forward and backward, and in particular, an elastic force upward from the seat plunger 27 between the valve housing 22 and the seat plunger 27. The second elastic member 28 is provided to give a.

제2탄성부재(28)의 설치를 위하여 제2탄성부재의 상단을 지지하고 상기 중공(22a)의 밀폐를 위하여 시트 플런저(27)의 상단에는 반경방향으로 연장형성되는 플랜지부(27b)이 형성되고, 밸브하우징(22)의 중공(22a)에는 슬리브시트(29)가 설치되며 이 슬리브시트(29)의 하단부에는 플랜지부(29a)가 형성되어 있다. 상기 제2탄성부재(28)은 두 플랜지부(29a)(27b)사이에 설치되며 제2탄성부재(28)의 탄성계수는 제1탄성부재(26)의 그것보다 작게 형성된다.A flange portion 27b is formed to support the upper end of the second elastic member 28 to install the second elastic member 28 and to extend radially at the upper end of the seat plunger 27 to seal the hollow 22a. The sleeve 22 is installed in the hollow 22a of the valve housing 22, and the flange 29a is formed at the lower end of the sleeve seat 29. As shown in FIG. The second elastic member 28 is installed between two flange portions 29a and 27b and the elastic modulus of the second elastic member 28 is smaller than that of the first elastic member 26.

이러한 슬리브 시트(29)를 통해 제2탄성부재(28)를 설치하기 위한 플랜지부(29a)를 형성하게 되면 제2탄성부재(28)를 설치하기 위하여 밸브하우징(22)을 가공하는 과정에서 중공을 형성하는 과정이외에 플랜지구조를 형성하기 위한 절삭과정은 생략할 수 있어 그 만큼 생산원가가 절감될 수 있다.When the flange portion 29a for forming the second elastic member 28 is formed through the sleeve sheet 29, the hollow portion in the process of processing the valve housing 22 to install the second elastic member 28 is formed. In addition to the process of forming a cutting process for forming a flange structure can be omitted, so that the production cost can be reduced.

또한, 상기 밸브하우징(22)의 하부에는 반경방향으로 인렛(30a)이, 길이방향 하방으로 아웃렛(30b)이 형성되고, 인렛(30a)에는 유체의 필터링을 위한 필터체(22d)가 설치된다.In addition, an inlet 30a is formed in the lower portion of the valve housing 22 in the radial direction, and an outlet 30b is formed downward in the longitudinal direction, and a filter body 22d for filtering the fluid is provided in the inlet 30a. .

이러한 밸브하우징(22)의 하부 외주연은 보어(21a)에 압입되어 밀폐상태가 유지되도록 조립된다.The lower outer periphery of the valve housing 22 is assembled into the bore 21a and assembled to maintain a closed state.

밸브하우징(22)의 하부에 형성되는 아웃렛(30b)은 그 상단이 시트 플런저(27)의 진퇴에 따라 개폐되는 제2오리피스(29e)로 형성된다.The outlet 30b formed at the lower portion of the valve housing 22 is formed of a second orifice 29e whose upper end is opened and closed as the seat plunger 27 moves forward and backward.

제2오리피스(29e)는 제1오리피스(27a)와 연통되며 시트플런저(27)의 하단부 직경보다 약간 크게 형성되어 시트플런저(27)의 하단부가 제2오리피스(29e)내로 삽입되면서 인렛(30a)과 아웃렛(30b)사이의 유로를 폐쇄하도록 하고, 시트 플런저(27)가 상승한 상태에서는 인렛(30a)과 아웃렛(30b)을 직접연결하도록 형성된다.The second orifice 29e communicates with the first orifice 27a and is formed slightly larger than the diameter of the lower end of the seat plunger 27 so that the lower end of the seat plunger 27 is inserted into the second orifice 29e and the inlet 30a. The flow path between the outlet 30b and the outlet 30b is closed, and the inlet 30a and the outlet 30b are directly connected when the seat plunger 27 is raised.

다음은 이러한 구성의 본 발명에 따른 브레이크 시스템용 밸브의 개폐동작을 설명한다.The following describes the opening and closing operation of the valve for a brake system according to the present invention of such a configuration.

평상시 밸브(20)는 제1탄성부재(26)의 탄성계수가 제2탄성부재(28)보다 큰 상태이므로 아마츄어(23)가 시트 플런저(27)쪽으로 전진한 상태에서 아마츄어(23)의 하단부에 의해 제1오리피스(27a)가 폐쇄된 상태이다.Since the elastic modulus of the first elastic member 26 is larger than that of the second elastic member 28, the valve 20 is normally provided at the lower end of the armature 23 while the armature 23 is advanced toward the seat plunger 27. As a result, the first orifice 27a is closed.

밸브(20)가 작동되면, 아마츄어(23)가 밸브코어(25)측으로 후퇴하면서 제1오리피스(27a)가 개방된다. 이때 인렛(30a)측에는 높은 제동압이 걸린 상태이므로 인렛(30a)과 아웃렛(30b)사이의 압력차이에 의해 시트 플런저(27)보다 아마츄어(23) 의 후퇴가 먼저 이루어지면서 제1오리피스(27a)가 개방된다.When the valve 20 is actuated, the first orifice 27a is opened while the armature 23 is retracted toward the valve core 25 side. At this time, since a high braking pressure is applied to the inlet 30a, the first orifice 27a is made to retreat the arm 23 before the seat plunger 27 due to the pressure difference between the inlet 30a and the outlet 30b. Is opened.

이후 제1오리피스(27a)를 통해 유체가 흘러 인렛(30a)과 아웃렛(30b)측의 압력차이가 일정수준 이하가 되면 제2탄성부재(28)에 의해 시트 플런저(27)가 상승하면서 제2오리피스(29e)가 개방되고 이에 따라 인렛(30a)과 아웃렛(30b)측이 직접 연결되면서 많은 양의 유체가 아웃렛(30b)측으로 흘러 유압라인쪽의 신속한 압력상승이 가능해진다. Then, when the fluid flows through the first orifice 27a and the pressure difference between the inlet 30a and the outlet 30b is less than a predetermined level, the seat plunger 27 is raised by the second elastic member 28 and the second is increased. As the orifice 29e is opened and the inlet 30a and the outlet 30b are directly connected to each other, a large amount of fluid flows to the outlet 30b to enable a rapid pressure rise toward the hydraulic line.

이상에서 살펴본 바와 같이, 본 발명에 따른 안티록 브레이크 시스템용 밸브는 밸브 코어와 밸브 하우징의 외주연에는 결합홈이 형성되고, 슬리브의 내주연에는 결합홈에 대응되도록 결합돌기가 형성되어 용접이 아닌 소성가공에 의해 슬리브의 조립이 가능하여 생산공정이 단순화된다.As described above, the antilock brake system valve according to the present invention has a coupling groove formed on the outer circumference of the valve core and the valve housing, and a coupling protrusion is formed on the inner circumference of the sleeve so as to correspond to the coupling groove. Plastic processing allows assembly of the sleeve, simplifying the production process.

또한, 밸브를 구성하는 구성요소의 형상을 단순화함으로써 각 구성요소간의 조립이 용이하고 그 형상도 단순화되어 복잡한 형상을 절삭가공하는 공정을 생략함에 의해 전체적으로 생산원가가 절감되는 효과가 있다.      In addition, by simplifying the shape of the components constituting the valve, the assembly between each component is easy and the shape is also simplified, thereby reducing the overall production cost by eliminating the process of cutting a complex shape.

Claims (5)

밸브코어(25); 상기 밸브코어의 하부에 위치하며 단부에 반구형의 개폐부가 형성된 아마츄어(23); 상기 아마츄어의 외주연에 결합되어 상기 아마츄어를 진퇴가능하게 안내하는 원통형 슬리브(24)와, 내부에 길이방향의 중공이 형성되며 외주연과 하부에 각각 인렛(30a)과 아웃렛(30b)이 형성되고 상기 인렛(30a)에 필터(22d)가 마련되는 밸브하우징(22)과, 상기 밸브코어(25)와 아마츄어(23)사이에 설치되는 제1탄성부재(26)와, 상기 중공에 진퇴가능하게 설치되며 상기 개폐부에 의해 개폐되는 제1오리피스(27a)가 형성된 시트 플런저(27)와, 상기 시트 플런저(27)의 상단과 상기 밸브하우징의 하단사이에 설치되는 제2탄성부재(28)를 포함하는 안티록 브레이크 시스템용 밸브에 있어서,Valve core 25; An amateur 23 positioned below the valve core and having a hemispherical opening and closing portion formed at an end thereof; A cylindrical sleeve 24 coupled to the outer periphery of the amateur to guide the armature forward and backward, and a hollow in the longitudinal direction is formed therein and the inlet 30a and the outlet 30b are formed on the outer periphery and the lower, respectively. A valve housing 22 provided with a filter 22d in the inlet 30a, a first elastic member 26 provided between the valve core 25 and the armature 23, and a retractable hollow in the hollow And a seat plunger 27 having a first orifice 27a which is opened and closed by the opening and closing portion, and a second elastic member 28 installed between an upper end of the seat plunger 27 and a lower end of the valve housing. In the anti-lock brake system valve, 상기 원통형 슬리브(24)의 일측은 상기 밸브코어(25)의 외주연에 소성가공에 의해 결합되고, 상기 원통형 슬리브(24)의 타측은 상기 밸브하우징(22)의 외주연에 소성가공에 의해 결합되는 것을 특징으로 하는 안티록 브레이크 시스템용 밸브. One side of the cylindrical sleeve 24 is coupled to the outer periphery of the valve core 25 by plastic working, the other side of the cylindrical sleeve 24 is coupled to the outer periphery of the valve housing 22 by plastic working Valve for anti-lock brake system, characterized in that the. 제1항에 있어서, 상기 밸브 코어와 밸브 하우징의 외주연에는 결합홈이 형성되고, 상기 슬리브의 내주연에는 상기 결합홈에 대응되도록 결합돌기가 형성되는 것을 특징으로 하는 안티록 브레이크 시스템용 밸브.The valve of claim 1, wherein a coupling groove is formed at an outer circumference of the valve core and the valve housing, and a coupling protrusion is formed at an inner circumference of the sleeve to correspond to the coupling groove. 제1항에 있어서, 상기 아웃렛에는 상기 시트 플런저의 진퇴에 따라 개폐되는 제2오리피스가 형성된 것을 특징으로 하는 안티록 브레이크 시스템용 밸브.The valve of claim 1, wherein the outlet is formed with a second orifice that opens and closes as the seat plunger moves forward and backward. 제1항에 있어서, 상기 슬리브의 하부에는 수평방향으로 절곡형성된 플랜지부 가 마련되는 것을 특징으로 하는 안티록 브레이크 시스템용 밸브.The anti-lock brake system valve of claim 1, wherein a lower portion of the sleeve is provided with a flange portion bent in a horizontal direction. 제1항에 있어서, 상기 밸브하우징의 내주연에는 상기 제1탄성부재의 하단부를 지지하기 위하여 하단에 플랜지부가 형성된 슬리브 시트가 설치되는 것을 특징으로 하는 안티록 브레이크 시스템용 밸브.The valve for an anti-lock brake system according to claim 1, wherein a sleeve seat having a flange portion at a lower end thereof is installed at an inner circumference of the valve housing to support a lower end of the first elastic member.
KR1020070116369A 2007-10-11 2007-11-15 Valve for anti-lock brake system KR100881593B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020070116369A KR100881593B1 (en) 2007-11-15 2007-11-15 Valve for anti-lock brake system
US12/110,713 US7866625B2 (en) 2007-10-11 2008-04-28 Solenoid valve for brake system
DE102008023112A DE102008023112A1 (en) 2007-10-11 2008-05-09 Valve for an anti-lock brake system
CN2008100970905A CN101407217B (en) 2007-10-11 2008-05-14 Solenoid valve for brake system

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Publication number Priority date Publication date Assignee Title
KR20010108902A (en) * 2000-06-01 2001-12-08 밍 루 Solenoid valve for brake system
KR20030031612A (en) * 2001-10-15 2003-04-23 주식회사 만도 Solenoid Valve of Anti-Lock Brake system
KR20040091435A (en) * 2003-04-21 2004-10-28 주식회사 만도 Solenoid valve for brake system
KR100677857B1 (en) 2005-11-09 2007-02-02 주식회사 만도 Solenoid valve for brake control system

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