KR100847744B1 - Solenoid valve for brake system - Google Patents

Solenoid valve for brake system Download PDF

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Publication number
KR100847744B1
KR100847744B1 KR1020070102359A KR20070102359A KR100847744B1 KR 100847744 B1 KR100847744 B1 KR 100847744B1 KR 1020070102359 A KR1020070102359 A KR 1020070102359A KR 20070102359 A KR20070102359 A KR 20070102359A KR 100847744 B1 KR100847744 B1 KR 100847744B1
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KR
South Korea
Prior art keywords
sleeve
valve seat
valve
seat member
orifice
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Application number
KR1020070102359A
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Korean (ko)
Inventor
이충재
서동일
이상철
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주식회사 만도
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Application filed by 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020070102359A priority Critical patent/KR100847744B1/en
Priority to DE200810014408 priority patent/DE102008014408A1/en
Priority to US12/051,978 priority patent/US8375985B2/en
Priority to CN2008100874382A priority patent/CN101407213B/en
Application granted granted Critical
Publication of KR100847744B1 publication Critical patent/KR100847744B1/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

Abstract

A solenoid valve for a brake system is provided to secure easy fabrication, and to reduce fabrication costs by simplifying composition. A solenoid valve for a brake system comprises a valve seat member(20), a sleeve(30), a valve core(50), an amateur(40), a recovery spring(45) and a filter member(70). The valve seat member includes an inside flow path(21) penetrated in a lengthwise direction, an outside flow path(22) formed on an outer surface in the lengthwise direction, and a seat part(23) having a first orifice(24) in the inside flow path. The sleeve includes a first end coupled to an outer surface of the valve seat member, and a flange part(31) fixed to a modulator block(100) of the first end. The valve core is coupled to a second end, which is opposite to the first end of the sleeve. The amateur is installed inside the sleeve so as to be moved back and forth, and opens/closes the first orifice. The recovery spring pressurizes the amateur toward the first orifice. The filter member is coupled outside the valve seat member for filtering foreign matters, includes a connecting flow path(73) connected to the inside flow path of the valve seat member, and is provided with a second orifice part(74) inside the connecting flow path.

Description

브레이크시스템용 솔레노이드밸브{SOLENOID VALVE FOR BRAKE SYSTEM}Solenoid Valve for Brake System {SOLENOID VALVE FOR BRAKE SYSTEM}

본 발명은 브레이크시스템용 솔레노이드밸브에 관한 것으로, 더욱 상세하게는 종래보다 용이하게 제조할 수 있고 제조비용도 줄일 수 있는 브레이크시스템용 솔레노이드밸브에 관한 것이다.The present invention relates to a solenoid valve for a brake system, and more particularly, to a solenoid valve for a brake system which can be manufactured more easily than before and can reduce manufacturing costs.

일반적인 차량용 안티록 브레이크시스템은 바퀴의 슬립을 감지하여 바퀴 측으로 가해지는 제동압력을 제어함으로써 제동 중 바퀴가 잠기는 현상을 방지한다. 이를 통해 제동 중 바퀴가 미끄러지지 않고 방향성을 유지하도록 함으로써 안전한 제동이 이루어지도록 한다.A general vehicle anti-lock brake system senses the slip of the wheel and controls the braking pressure applied to the wheel to prevent the wheel from locking up during braking. This ensures safe braking by ensuring that the wheels do not slip during braking.

이러한 브레이크시스템은 제동압력 제어를 위해 브레이크 유압라인의 유로를 개폐하는 다수의 솔레노이드밸브들을 구비한다. 솔레노이드밸브들은 평소 개방상태를 유지하는 노말 오픈(Normal Open)형 솔레노이드밸브와, 평소 폐쇄상태를 유지하는 노말 클로즈(Normal Close)형 솔레노이드밸브를 포함한다.The brake system includes a plurality of solenoid valves for opening and closing the flow path of the brake hydraulic line for controlling the braking pressure. The solenoid valves include a normally open solenoid valve that normally maintains an open state, and a normally closed solenoid valve that normally maintains a closed state.

도 1은 종래의 노말 클로즈형 솔레노이드밸브를 나타낸 것이다. 이 밸브는 브레이크시스템의 유로들이 형성된 모듈레이터블록(13)의 보어(14)에 압입되어 설치되며, 유체의 흐름을 위한 입구(3)와 출구(4)를 갖는 중공의 밸브하우징(1)을 구 비한다. Figure 1 shows a conventional normal closed solenoid valve. The valve is press-fitted into the bore 14 of the modulator block 13 in which the flow paths of the brake system are formed, and a hollow valve housing 1 having an inlet 3 and an outlet 4 for the flow of fluid is formed. Compared.

밸브하우징(1)의 일단에는 그 내부에 설치되는 아마츄어(5)가 진퇴할 수 있도록 원통형 슬리브(6)가 결합되고, 슬리브(6)의 개방된 단부에는 슬리브(6)의 개방된 부분을 폐쇄하며 아마츄어(5)를 진퇴시키기 위한 밸브코어(7)가 결합된다. 아마츄어(5)는 진퇴운동을 통해 밸브시트(8)의 오리피스(8a)를 개폐한다. 이를 위해 아마츄어(5)는 밸브하우징(1)의 중공부(2)를 통하여 밸브시트(8) 쪽으로 연장된 개폐부(5a)를 구비한다. At one end of the valve housing 1 a cylindrical sleeve 6 is engaged so that the armature 5 installed therein can retract, and the open end of the sleeve 6 is closed at the open end of the sleeve 6. And a valve core 7 for advancing and retracting the armature 5. The amateur 5 opens and closes the orifice 8a of the valve seat 8 through the forward and backward movement. For this purpose, the armature 5 has an opening and closing portion 5a extending toward the valve seat 8 through the hollow portion 2 of the valve housing 1.

아마츄어(5)와 밸브코어(7) 사이에는 아마츄어(5)가 평소 오리피스(8a)를 폐쇄할 수 있도록 아마츄어(5)를 가압하는 복원스프링(9)이 설치되고, 슬리브(6)와 밸브코어(7)의 외측에는 아마츄어(5)를 진퇴시키는 여자코일조립체(10)가 설치된다. 또 밸브하우징(1) 내측에는 오리피스부재(11)가 설치되고, 밸브하우징(1) 외측에는 밸브하우징(1)과 보어(14) 내면 사이를 밀폐하는 오링(12, O-RING)이 설치된다.Between the armature 5 and the valve core 7 is provided a restoring spring 9 for pressurizing the armature 5 so that the armature 5 can normally close the orifice 8a. The sleeve 6 and the valve core are provided. On the outside of (7), a female coil assembly 10 for advancing and retracting the amateur 5 is provided. In addition, an orifice member 11 is installed inside the valve housing 1, and an O-ring 12 is installed outside the valve housing 1 to seal between the valve housing 1 and the inner surface of the bore 14. .

이러한 솔레노이드밸브는 여자코일(10)에 전원이 인가될 때 생기는 자기력에 의해 아마츄어(5)가 밸브코어(7) 쪽으로 이동하면서 밸브시트(8)의 오리피스(8a)를 열어준다. 여자코일(10)에 전원이 인가되지 않을 때는 자기력이 작용하지 않으므로 복원스프링(9)의 탄성에 의해 아마츄어(5)가 오리피스(8a)을 폐쇄하도록 동작한다.The solenoid valve opens the orifice 8a of the valve seat 8 while the armature 5 moves toward the valve core 7 by the magnetic force generated when power is applied to the excitation coil 10. When no power is applied to the excitation coil 10, the magnetic force does not act so that the armature 5 closes the orifice 8a by the elasticity of the restoring spring 9.

전술한 솔레노이드 밸브는 밸브하우징과 밸브시트가 별도로 마련되고, 밸브 하우징 내에 밸브시트가 압입 고정되는 형태이며, 아마츄어의 개폐부가 밸브하우징의 중공부를 통하여 밸브시트 쪽으로 길게 연장된 형태이기 때문에 그 길이가 길 뿐 아니라 부품수가 많고 구조가 복잡하여 제조가 어려운 문제가 있었다. 따라서 제조원가도 높았다.The above-described solenoid valve is provided with a valve housing and a valve seat separately, and the valve seat is press-fitted and fixed in the valve housing. The length of the solenoid valve is long because the opening and closing portion of the armature extends toward the valve seat through the hollow part of the valve housing. In addition, the number of parts and the structure is complicated, there was a difficult manufacturing problem. Therefore, the manufacturing cost was also high.

또 전술한 솔레노이드밸브는 슬리브와 밸브코어를 용접으로 결합시키고, 슬리브와 밸브하우징도 용접으로 결합시키기 때문에 이들의 결합을 위한 작업공수가 많아 조립생산성이 떨어지는 결점도 있었다.In addition, the above-described solenoid valve is coupled to the sleeve and the valve core by welding, and the sleeve and the valve housing are also joined by welding, so there is a drawback in that assembly productivity is low because there is a lot of labor for these couplings.

본 발명은 이와 같은 문제점들을 해결하기 위한 것으로, 본 발명의 목적은 종래보다 구성을 단순화하여 제조가 용이하도록 하고 제조비용도 줄일 수 있도록 하는 브레이크시스템용 솔레노이드밸브를 제공하는 것이다.The present invention is to solve such problems, an object of the present invention is to provide a solenoid valve for a brake system to simplify the configuration than the conventional to facilitate the manufacture and to reduce the manufacturing cost.

전술한 목적을 달성하기 위한 본 발명에 따른 브레이크시스템용 솔레노이드밸브는 내부에 길이방향으로 관통하는 내측유로가 형성되고 외면에 길이방향으로 외측유로가 형성되며, 상기 내측유로에 제1오리피스를 갖춘 시트부가 일체로 마련된 밸브시트부재와; 상기 밸브시트부재의 외면에 결합되는 제1단부를 구비하고, 상기 제1단부 쪽에 모듈레이터블록에 고정되는 플랜지부가 마련된 슬리브와; 상기 슬리브의 상기 제1단부 반대편인 제2단부에 결합되는 밸브코어와; 상기 슬리브 내에 진퇴 가능하게 설치되며 상기 제1오리피스를 개폐하는 개폐부를 갖춘 아마츄어와; 상기 아마츄어를 상기 제1오리피스 쪽으로 가압하는 복원스프링과; 이물질 여과를 위해 상기 밸브시트부재 외측에 결합되고, 상기 밸브시트부재의 내측유로와 연계되 는 연계유로를 구비하며, 상기 연계유로 내에 제2오리피스부가 마련된 필터부재를 포함한다.The solenoid valve for a brake system according to the present invention for achieving the above object is formed with an inner flow passage extending in the longitudinal direction therein, the outer flow passage is formed in the longitudinal direction on the outer surface, the seat having a first orifice in the inner flow passage A valve seat member additionally provided; A sleeve having a first end coupled to an outer surface of the valve seat member and having a flange portion fixed to the modulator block toward the first end; A valve core coupled to a second end opposite the first end of the sleeve; An armature removably installed in the sleeve and having an opening and closing portion for opening and closing the first orifice; A restoring spring for pressing the armature toward the first orifice; It includes a filter member coupled to the outside of the valve seat member for filtration of foreign matter, having a linkage passage associated with the inner passage of the valve seat member, the second orifice portion is provided in the linkage passage.

상기 시트부는 상기 개폐부와 근접하도록 상기 슬리브의 내측으로 진입하는 상기 밸브시트부재의 일단에 마련된다.The seat portion is provided at one end of the valve seat member that enters the inside of the sleeve to approach the opening and closing portion.

상기 외측유로는 상기 슬리브가 결합되는 부분에 유로를 형성하도록 상기 밸브시트부재의 외면에 홈형태로 형성된다.The outer flow path is formed in a groove shape on the outer surface of the valve seat member so as to form a flow path in a portion to which the sleeve is coupled.

상기 밸브시트부재는 상기 슬리브의 플랜지부가 걸리도록 외면에 형성된 계단형 단차부를 포함한다.The valve seat member includes a stepped stepped portion formed on an outer surface of the sleeve to engage the flange portion of the sleeve.

상기 밸브코어는 상기 슬리브의 결합을 위해 외면에 결합홈을 구비하고, 상기 슬리브는 변형에 의하여 상기 결합홈으로 진입하여 걸리는 걸림부를 포함한다.The valve core has a coupling groove on the outer surface for coupling the sleeve, the sleeve includes a engaging portion to enter and engage the coupling groove by deformation.

본 발명에 따른 솔레노이드밸브는 제1오리피스가 형성된 시트부가 밸브시트부재에 일체로 마련되고, 슬리브가 밸브시트부재와 결합되는 형태이기 때문에 부품수가 줄어 종래보다 구성을 단순화할 수 있는 효과가 있다. The solenoid valve according to the present invention has the effect that the seat portion formed with the first orifice is integrally provided in the valve seat member, and the sleeve is coupled to the valve seat member, thereby reducing the number of parts and simplifying the construction.

또 본 발명에 따른 솔레노이드밸브는 슬리브의 플랜지가 모듈레이터블록에 직접 고정되기 때문에 조립을 용이하게 수행할 수 있고, 밸브시트부재와 슬리브의 결합을 위해 별도의 용접 등을 할 필요가 없으므로 이들의 결합을 용이하게 수행할 수 있다. 또 밸브코어와 슬리브도 결합홈과 슬리브의 변형에 의한 걸림부에 의해 결합되기 때문에 결합이 용이하다. 따라서 종래보다 제조가 용이하고 제조비용을 줄일 수 있는 효과가 있다.In addition, the solenoid valve according to the present invention can be easily assembled because the flange of the sleeve is fixed directly to the modulator block, and there is no need for a separate welding for the coupling of the valve seat member and the sleeve, so the combination thereof It can be done easily. In addition, since the valve core and the sleeve are engaged by the engaging portion due to the deformation of the coupling groove and the sleeve, the coupling is easy. Therefore, it is easier to manufacture than the conventional and there is an effect that can reduce the manufacturing cost.

또 본 발명에 따른 솔레노이드밸브는 밸브시트부재의 시트부가 슬리브 내에 수용되기 때문에 아마츄어의 길이를 종래보다 짧게 할 수 있다. 따라서 그 전체길이도 종래보다 줄일 수 있는 효과가 있다.In addition, since the seat portion of the valve seat member is accommodated in the sleeve, the solenoid valve according to the present invention can make the length of the armature shorter than before. Therefore, the overall length is also reduced than the conventional effect.

또 본 발명에 따른 솔레노이드밸브는 제2오리피스가 필터부재에 형성되기 때문에 제2오리피스를 형성을 위해 종래처럼 별도의 오리피스부재를 설치할 필요가 없다. 따라서 구성을 더욱 단순화할 수 있는 효과가 있다.In addition, since the second orifice is formed in the filter member, the solenoid valve according to the present invention does not need to install a separate orifice member as in the prior art to form the second orifice. Therefore, the effect can be further simplified.

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 브레이크시스템용 솔레노이드밸브는 도 2에 도시한 바와 같이, 밸브시트부재(20), 슬리브(30), 아마츄어(40), 밸브코어(50), 여자코일조립체(60), 그리고 필터부재(70)를 구비한다.As shown in FIG. 2, the solenoid valve for the brake system according to the present invention includes a valve seat member 20, a sleeve 30, an amateur 40, a valve core 50, an excitation coil assembly 60, and a filter. The member 70 is provided.

밸브시트부재(20)는 내부에 상하 길이방향으로 관통하는 내측유로(21)와, 외면에 상하 길이방향으로 형성된 외측유로(22)를 구비한다. 밸브시트부재(20)의 내측유로(21) 상부에는 제1오리피스(24)가 형성된 시트부(23)가 마련된다. 이 시트부(23)는 밸브시트부재(20)와 일체로 형성된다. 밸브시트부재(20)의 외면에는 슬리브(30)와의 결합을 위해 외면으로 돌출하는 계단형 단차부(25)가 형성된다. 그리고 외측유로(22)는 단차부(25)로부터 밸브시트부재(20) 상단까지 길게 형성된 홈형태이다.The valve seat member 20 includes an inner flow passage 21 penetrating therein in the vertical direction and an outer flow passage 22 formed in the vertical direction in the outer surface of the valve seat member 20. The seat part 23 on which the first orifice 24 is formed is provided on the inner passage 21 of the valve seat member 20. This seat portion 23 is formed integrally with the valve seat member 20. On the outer surface of the valve seat member 20, a stepped stepped portion 25 protruding to the outer surface for engagement with the sleeve 30 is formed. In addition, the outer passage 22 has a groove shape extending from the step portion 25 to the upper end of the valve seat member 20.

필터부재(70)는 원통형으로 마련되며 밸브시트부재(20)의 외측에 설치된다. 필터부재(70)는 밸브시트부재(20)의 둘레부분과 하단을 수용하는 수용하는 수용공간(71)을 구비한다. 수용공간(71)의 둘레 쪽에는 모듈레이터블록(100)의 유입유로(102)를 통하여 유입되는 오일의 이물질을 여과하는 여과부(72)가 마련된다. 또 필터부재(70)는 밸브시트부재(20)의 내측유로(21)와 연계되는 연계유로(73)를 구비하며, 연계유로(73) 내에는 유체흐름을 안정화 하기 위한 제2오리피스(74)가 형성된다. 이러한 필터부재(70)는 밸브시트부재(20)의 외면에 장착된 상태에서 밸브시트부재(20)와 함께 모듈레이터블록(100)의 보어(101) 내측으로 진입하도록 결합된다.The filter member 70 is provided in a cylindrical shape and is installed outside the valve seat member 20. The filter member 70 has a receiving space 71 for receiving the circumferential portion and the lower end of the valve seat member 20. The circumferential side of the accommodation space 71 is provided with a filtration unit 72 for filtering foreign substances of the oil flowing through the inflow passage 102 of the modulator block 100. In addition, the filter member 70 has a linkage passage 73 associated with the inner passage 21 of the valve seat member 20, and the second orifice 74 for stabilizing the fluid flow in the linkage passage 73. Is formed. The filter member 70 is coupled to enter the bore 101 of the modulator block 100 together with the valve seat member 20 in a state of being mounted on the outer surface of the valve seat member 20.

슬리브(30)는 내경이 밸브시트부재(20)의 상측 외경과 대응하는 원통형태이다. 슬리브(30)는 하측의 제1단부가 밸브시트부재(20) 외면에 압입되는 형태로 결합된다. 또 제1단부에는 솔레노이드밸브를 모듈레이터블록(100)에 장착할 때 모듈레이터블록(100)의 변형에 의해 고정되는 플랜지부(31)가 마련된다. 밸브시트부재(20)의 단차부(25)는 플랜지(31)가 결합될 때 플랜지(31)의 결합위치를 결정함과 동시에 플랜지(31)를 지지함으로써 상호 견고한 결합이 이루어지도록 한다. 이처럼 슬리브(30)와 밸브시트부재(20)가 결합되면, 밸브시트부재(20)의 시트부(23)는 슬리브(30)의 하측 내부에 수용된 상태가 된다. 밸브시트부재(20)의 외측유로(22)는 슬리브(30)와 결합되는 부분에 홈형태로 형성됨으로써 필터부재(70)의 수용공간(71)을 거친 오일이 외측유로(22)를 통하여 슬리브(30)의 내로 유입될 수 있도록 한다.The sleeve 30 has a cylindrical shape whose inner diameter corresponds to the upper outer diameter of the valve seat member 20. The sleeve 30 is coupled in a form in which the lower first end is pressed into the outer surface of the valve seat member 20. In addition, the first end is provided with a flange portion 31 which is fixed by the deformation of the modulator block 100 when the solenoid valve is mounted on the modulator block 100. The stepped portion 25 of the valve seat member 20 determines the engagement position of the flange 31 when the flange 31 is coupled, and at the same time supports the flange 31 so that a firm coupling is achieved. When the sleeve 30 and the valve seat member 20 are coupled as described above, the seat portion 23 of the valve seat member 20 is in a state accommodated inside the lower side of the sleeve 30. The outer flow passage 22 of the valve seat member 20 is formed in a groove shape at a portion engaged with the sleeve 30 so that the oil passing through the receiving space 71 of the filter member 70 passes through the outer flow passage 22. Allow 30 to flow into the interior.

밸브코어(50)는 슬리브(30)의 상측 제2단부에 압입되는 형태로 결합됨으로써 슬리브(30)의 상단 개구를 폐쇄한다. 도 4에 도시한 바와 같이, 밸브코어(50)와 슬리브(30)의 결합을 위해 밸브코어(50)의 외면에는 둘레를 따라 결합홈(51)이 형성되고, 슬리브(30)에는 변형에 의하여 결합홈(51)으로 진입하여 걸리는 걸림부(32)가 마련된다. 즉 슬리브(30) 내로 밸브코어(50)를 진입시킨 후 변형에 의해 걸림부(32)를 형성함으로써 밸브코어(50)가 슬리브(30)에 고정될 수 있도록 한 것이다. 이러한 결합구조는 종래의 용접방식에 비하여 슬리브(30)와 밸브코어(50)의 결합을 용이하게 하고 결합공정을 간소화할 수 있도록 한다.The valve core 50 is coupled to the upper second end of the sleeve 30 to be press-fitted to close the top opening of the sleeve 30. As shown in FIG. 4, the coupling groove 51 is formed on the outer surface of the valve core 50 along the circumference for coupling the valve core 50 and the sleeve 30, and the sleeve 30 is deformed by deformation. The engaging portion 32 is provided to enter the engaging groove 51 is provided. That is, the valve core 50 may be fixed to the sleeve 30 by entering the valve core 50 into the sleeve 30 and forming the catching part 32 by deformation. This coupling structure facilitates the coupling of the sleeve 30 and the valve core 50 as compared to the conventional welding method and can simplify the coupling process.

아마츄어(40)는 슬리브(30) 내에 상하로 진퇴 가능하게 설치된다. 아마츄어(40)는 외경이 슬리브(30)의 내경에 대응하는 원통형으로 마련되며, 외면에는 상하방향으로 오일이 유통하는 오일유로(41)가 형성된다. 아마츄어(40) 하단에는 시트부(23)의 제1오리피스(24)를 폐쇄할 수 있는 반구형의 개폐부(42)가 마련된다. 아마츄어(40)의 진퇴에 따라 제1오리피스(24)가 개폐될 수 있도록 한 것이다. The amateur 40 is installed in the sleeve 30 so as to be able to move up and down. The amateur 40 is provided with a cylindrical shape whose outer diameter corresponds to the inner diameter of the sleeve 30, and an oil passage 41 through which oil flows in the up and down direction is formed on the outer surface. The hemispherical opening part 42 which can close the 1st orifice 24 of the seat part 23 is provided in the lower part of the armature 40. As shown in FIG. The first orifice 24 is to be opened and closed as the amateur 40 advances.

아마츄어(40)와 밸브코어(50) 사이에는 평소 아마츄어(40)를 시트부(23) 쪽으로 가압하는 복원스프링(45)이 설치된다. 복원스프링(45)은 아마츄어(40) 상부에 형성된 스프링수용홈(46)에 수용된다. 이는 복원스프링(45)이 아마츄어(40)를 시트부(23) 쪽으로 가압함으로써 평소 개폐부(42)가 제1오리피스(24)를 폐쇄할 수 있도록 한 것이다.Between the armature 40 and the valve core 50, a restoring spring 45 for pressing the armature 40 toward the seat 23 is usually provided. Restoration spring 45 is accommodated in the spring receiving groove 46 formed in the upper portion of the armature (40). This is because the restoring spring 45 presses the armature 40 toward the seat portion 23 so that the opening and closing portion 42 can normally close the first orifice 24.

여자코일조립체(60)는 원통형으로 마련되며, 밸브코어(50)와 슬리브(30)의 상측 외면에 결합된다. 이러한 여자코일조립체(60)는 원통형의 코일케이스(61), 코일케이스(61) 내에 수용된 보빈(62), 보빈(62)의 외면에 권선된 여자코일(63)을 포 함한다. 여자코일(63)에 전원을 인가할 때 자기장이 형성되도록 함으로써 아마츄어(40)를 밸브코어(50) 쪽으로 동작시켜 제1오리피스(24)를 개방할 수 있도록 한 것이다. The excitation coil assembly 60 is provided in a cylindrical shape and is coupled to the upper outer surface of the valve core 50 and the sleeve 30. The excitation coil assembly 60 includes a cylindrical coil case 61, a bobbin 62 accommodated in the coil case 61, and an excitation coil 63 wound on an outer surface of the bobbin 62. By applying a power to the excitation coil 63, the magnetic field is formed to operate the armature 40 toward the valve core 50 to open the first orifice 24.

이러한 솔레노이드밸브를 모듈레이터블록(100)에 장착할 때는 먼저 밸브시트부재(20), 슬리브(30), 아마츄어(40), 복원스프링(45), 밸브코어(50), 필터부재(70)를 모듈레이터블록(100) 외부에서 조립한 상태에서 필터부재(70)와 밸브시트부재(20)를 모듈레이터블록(100)의 보어(101)로 진입시킨다. 그리고 이 상태에서 모듈레이터블록(100)의 보어(101) 입구 측을 변형시킨다. 이렇게 하면, 모듈레이터블록(100)의 변형부(110)가 슬리브(30)의 플랜지(31)를 덮도록 변형되어 슬리브(30)를 고정함으로써 밸브의 장착이 완료된다.When the solenoid valve is mounted on the modulator block 100, the valve seat member 20, the sleeve 30, the armature 40, the restoring spring 45, the valve core 50, and the filter member 70 are first modulated. The filter member 70 and the valve seat member 20 enter the bore 101 of the modulator block 100 in an assembled state outside the block 100. In this state, the inlet side of the bore 101 of the modulator block 100 is deformed. In this case, the deformable portion 110 of the modulator block 100 is deformed to cover the flange 31 of the sleeve 30 so that the mounting of the valve is completed by fixing the sleeve 30.

이러한 브레이크시스템용 솔레노이드밸브는 시트부(23)가 밸브시트부재(20)에 일체로 마련되고, 슬리브(30)가 밸브시트부재(20)와 결합되는 형태이기 때문에 부품수가 줄어 종래보다 구성을 단순화할 수 있다. 즉 밸브하우징과 밸브시트가 별도인 종래의 예에 비하여 구성을 단순화할 수 있다. 또 본 실시 예는 슬리브(30)가 밸브시트부재(20) 외면에 결합된 상태에서 슬리브(30)의 플랜지(31)가 모듈레이터블록(100)에 직접 고정되기 때문에 조립을 용이하게 수행할 수 있다. 밸브시트부재(20)와 슬리브(30)의 결합을 위해 별도의 용접 등을 할 필요가 없으므로 제조공정을 간소화할 수 있다. 밸브코어(50)와 슬리브(30)도 결합홈(51)과 슬리브(30)의 변형에 의한 걸림부(32)에 의해 결합되기 때문에 결합이 용이하다. 또한 제2오리피스(74)가 필터부재(70)에 형성되기 때문에 제2오리피스(74)를 형성을 위해 종래처 럼 별도의 오리피스부재를 설치할 필요가 없다. 이처럼 본 실시 예의 솔레노이드밸브는 종래보다 구성이 단순하고 제조가 용이하다. 따라서 제조비용도 줄일 수 있다. The solenoid valve for the brake system is provided with the seat portion 23 integrally with the valve seat member 20, and the sleeve 30 is coupled to the valve seat member 20, thereby reducing the number of parts, thereby simplifying the construction. can do. That is, the configuration can be simplified as compared with the conventional example in which the valve housing and the valve seat are separate. In addition, in the present embodiment, since the flange 31 of the sleeve 30 is directly fixed to the modulator block 100 in a state in which the sleeve 30 is coupled to the outer surface of the valve seat member 20, the assembly can be easily performed. . Since the welding of the valve seat member 20 and the sleeve 30 need not be performed separately, the manufacturing process can be simplified. Since the valve core 50 and the sleeve 30 are also coupled by the engaging portion 32 by the deformation of the coupling groove 51 and the sleeve 30, the coupling is easy. In addition, since the second orifice 74 is formed in the filter member 70, it is not necessary to install a separate orifice member as in the prior art for forming the second orifice 74. As such, the solenoid valve of the present embodiment is simpler in construction and easier to manufacture than the prior art. Therefore, manufacturing cost can also be reduced.

또 본 실시 예의 솔레노이드밸브는 시트부(23)가 밸브시트부재(20)의 상단에 마련되어 슬리브(30) 내에 수용되기 때문에 아마츄어(40)의 길이를 종래보다 짧게 할 수 있다. 따라서 그 전체길이도 종래보다 줄일 수 있다. In addition, in the solenoid valve of the present embodiment, since the seat portion 23 is provided at the upper end of the valve seat member 20 and accommodated in the sleeve 30, the length of the armature 40 can be made shorter than before. Therefore, the overall length can be reduced as compared with the conventional one.

다음은 이러한 솔레노이브밸브의 개폐동작에 관하여 설명한다.The following describes the opening and closing operation of such a solenoid valve.

도 2에 도시한 바와 같이, 여자코일조립체(60)에 전원이 인가되지 않을 때는 복원스프링(45)이 아마츄어(40)를 제1오리피스(24) 쪽으로 밀어주게 되므로 아마츄어(40)의 개폐부(42)가 제1오리피스(24)를 폐쇄한다. 따라서 이때는 모듈레이터블록(100)의 유입유로(102)로부터 배출유로(103) 쪽으로 오일이 흐르지 않는다.As shown in FIG. 2, when power is not applied to the female coil assembly 60, the restoring spring 45 pushes the armature 40 toward the first orifice 24, so that the opening and closing portion 42 of the armature 40 is closed. ) Closes the first orifice 24. Therefore, in this case, the oil does not flow from the inflow passage 102 of the modulator block 100 toward the discharge passage 103.

도 3에 도시한 바와 같이, 여자코일조립체(60)에 전원이 인가되면, 아마츄어(40)와 밸브코어(50) 사이에 작용하는 자기력에 의해 아마츄어(40)가 복원스프링(45)의 탄성을 이기고 밸브코어(50) 쪽으로 이동한다. 따라서 제1오리피스(24)는 개방된다. 이처럼 제1오리피스(24)가 개방되면, 유입유로(102)의 오일은 필터부재(70)의 여과부(72)를 통과한 후 필터부재(70)의 수용공간(72)과 외측유로(22)를 통해 슬리브(30) 내로 유입된다. 그리고 계속해서 이 오일은 제1오일피스(24) 및 제2오리피스(74)를 통과하여 배출유로(103) 쪽으로 흐른다.As shown in FIG. 3, when power is applied to the excitation coil assembly 60, the armature 40 causes elasticity of the restoring spring 45 by a magnetic force acting between the armature 40 and the valve core 50. Win and move toward the valve core 50. Thus, the first orifice 24 is open. When the first orifice 24 is opened in this way, the oil in the inflow passage 102 passes through the filtration unit 72 of the filter member 70, and then the receiving space 72 and the outer passage 22 of the filter member 70. Through) into the sleeve (30). Then, the oil flows through the first oil piece 24 and the second orifice 74 toward the discharge flow path 103.

도 1은 종래 브레이크시스템용 솔레노이드밸브의 단면도이다.1 is a cross-sectional view of a conventional solenoid valve for a brake system.

도 2는 본 발명에 따른 브레이크시스템용 솔레노이드밸브의 단면도로, 제1오리피스가 폐쇄된 상태를 나타낸 것이다.2 is a cross-sectional view of a solenoid valve for a brake system according to the present invention, showing a state in which the first orifice is closed.

도 3은 본 발명에 따른 브레이크시스템용 솔레노이드밸브의 단면도로, 제1오리피스가 개방된 상태를 나타낸 것이다.3 is a cross-sectional view of a solenoid valve for a brake system according to the present invention, showing a state in which the first orifice is opened.

도 4는 도 2의 Ⅳ부 상세도이다.4 is a detailed view of part IV of FIG. 2.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

20: 밸브시트부재 21: 내측유로20: valve seat member 21: inner passage

22: 외측유로 23: 시트부22: outer flow passage 23: sheet portion

24: 제1오리피스 30: 슬리브24: first orifice 30: sleeve

31: 플랜지 32: 걸림부31: flange 32: engaging portion

40: 아마츄어 42: 개폐부40: amateur 42: opening and closing part

45: 복원스프링 50: 밸브코어45: restoring spring 50: valve core

51: 결합홈 60: 여자코일조립체51: coupling groove 60: female coil assembly

70: 필터부재 71: 수용공간70: filter member 71: receiving space

72: 여과부 73: 연계유로72: filtration unit 73: linkage flow

74: 제2오리피스74: second orifice

Claims (5)

내부에 길이방향으로 관통하는 내측유로가 형성되고 외면에 길이방향으로 외측유로가 형성되며, 상기 내측유로에 제1오리피스를 갖춘 시트부가 일체로 마련된 밸브시트부재와;A valve seat member having an inner flow passage formed therein in the longitudinal direction and an outer flow passage formed in the outer surface in the longitudinal direction, and having a seat portion integrally formed with the first orifice in the inner flow passage; 상기 밸브시트부재의 외면에 결합되는 제1단부를 구비하고, 상기 제1단부 쪽에 모듈레이터블록에 고정되는 플랜지부가 마련된 슬리브와;A sleeve having a first end coupled to an outer surface of the valve seat member and having a flange portion fixed to the modulator block toward the first end; 상기 슬리브의 상기 제1단부 반대편인 제2단부에 결합되는 밸브코어와;A valve core coupled to a second end opposite the first end of the sleeve; 상기 슬리브 내에 진퇴 가능하게 설치되며 상기 제1오리피스를 개폐하는 개폐부를 갖춘 아마츄어와;An armature removably installed in the sleeve and having an opening and closing portion for opening and closing the first orifice; 상기 아마츄어를 상기 제1오리피스 쪽으로 가압하는 복원스프링과;A restoring spring for pressing the armature toward the first orifice; 이물질 여과를 위해 상기 밸브시트부재 외측에 결합되고, 상기 밸브시트부재의 내측유로와 연계되는 연계유로를 구비하며, 상기 연계유로 내에 제2오리피스부가 마련된 필터부재를 포함하는 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The brake system is coupled to the outside of the valve seat member for filtration of foreign matter, having a linkage passage associated with the inner flow path of the valve seat member, the brake system comprising a filter member provided with a second orifice portion in the linkage passage Solenoid valve. 제1항에 있어서,The method of claim 1, 상기 시트부는 상기 개폐부와 근접하도록 상기 슬리브의 내측으로 진입하는 상기 밸브시트부재의 일단에 마련된 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The seat portion is provided with a solenoid valve for a brake system, characterized in that provided at one end of the valve seat member to enter the inside of the sleeve so as to approach the opening and closing portion. 제1항에 있어서,The method of claim 1, 상기 외측유로는 상기 슬리브가 결합되는 부분에 유로를 형성하도록 상기 밸브시트부재의 외면에 홈형태로 형성된 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The outer flow passage is a solenoid valve for a brake system, characterized in that formed in the groove shape on the outer surface of the valve seat member to form a flow path in the portion to which the sleeve is coupled. 제1항에 있어서,The method of claim 1, 상기 밸브시트부재는 상기 슬리브의 플랜지부가 걸리도록 외면에 형성된 계단형 단차부를 포함하는 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The valve seat member is a solenoid valve for a brake system, characterized in that it comprises a stepped stepped portion formed on the outer surface to catch the flange portion of the sleeve. 제1항에 있어서,The method of claim 1, 상기 밸브코어는 상기 슬리브의 결합을 위해 외면에 결합홈을 구비하고, The valve core has a coupling groove on the outer surface for coupling of the sleeve, 상기 슬리브는 변형에 의하여 상기 결합홈으로 진입하여 걸리는 걸림부를 포함하는 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The sleeve is a solenoid valve for a brake system, characterized in that it comprises a engaging portion to enter the engaging groove by deformation.
KR1020070102359A 2007-10-11 2007-10-11 Solenoid valve for brake system KR100847744B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020070102359A KR100847744B1 (en) 2007-10-11 2007-10-11 Solenoid valve for brake system
DE200810014408 DE102008014408A1 (en) 2007-10-11 2008-03-14 Valve for an anti-lock brake system
US12/051,978 US8375985B2 (en) 2007-10-11 2008-03-20 Solenoid valve for brake system
CN2008100874382A CN101407213B (en) 2007-10-11 2008-03-27 Solenoid valve for brake system

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