KR20090037019A - Solenoid valve for brake system - Google Patents

Solenoid valve for brake system Download PDF

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Publication number
KR20090037019A
KR20090037019A KR1020070102374A KR20070102374A KR20090037019A KR 20090037019 A KR20090037019 A KR 20090037019A KR 1020070102374 A KR1020070102374 A KR 1020070102374A KR 20070102374 A KR20070102374 A KR 20070102374A KR 20090037019 A KR20090037019 A KR 20090037019A
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KR
South Korea
Prior art keywords
sleeve
opening
orifice
solenoid valve
brake system
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KR1020070102374A
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Korean (ko)
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KR101187198B1 (en
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이충재
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주식회사 만도
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Priority to KR1020070102374A priority Critical patent/KR101187198B1/en
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Publication of KR101187198B1 publication Critical patent/KR101187198B1/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)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

A solenoid valve for brake system is provided to insert the sleeve into the bore of the modulator block and fasten the flange of the sleeve to the modulator block directly, thereby facilitating the assembly. A solenoid valve for brake system comprises a cylindrical sleeve(10) in which a seat(12) having a first orifice(13) is form in one body, a valve core(40) combined in the sleeve at the opposite side of the seat, an opening and closing member(20) which is installed inside the sleeve, and includes an inner path(21), a second orifice(22), and a first opening and closing part(23), an armature(30) which is installed inside the sleeve and is equipped with a second opening and closing part(31), a return spring(70) forcing the armature toward the second orifice, an opening spring(24) moving the opening and closing member toward the armature, and an oil path which is connected in the radial direction to the sleeve positioned inside the modulator block bore.

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 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 that can be easily manufactured and the manufacturing cost can be reduced.

차량의 안티록 브레이크시스템은 바퀴의 슬립을 감지하여 바퀴 측으로 가해지는 제동압력을 제어함으로써 제동 중 바퀴가 잠기지 않도록 한다. 제동 중 바퀴가 미끄러지지 않고 방향성을 유지하도록 함으로써 안전한 제동이 이루어지도록 하는 것이다.The vehicle's anti-lock brake system senses the wheel's slip and controls the braking pressure on the wheel to prevent the wheel from locking up during braking. Safe braking is achieved by keeping the wheels directional without braking.

이러한 브레이크시스템은 브레이크 유압라인의 유로를 개폐하는 다수의 솔레노이드밸브들을 구비한다. 브레이크시스템에 채용되는 솔레노이드밸브는 평소 개방상태를 유지하는 노말 오픈(Normal Open)형 솔레노이드밸브와, 평소 폐쇄상태를 유지하는 노말 클로즈(Normal Close)형 솔레노이드밸브가 있다.The brake system includes a plurality of solenoid valves for opening and closing the flow path of the brake hydraulic line. The solenoid valves employed in the brake system 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 모듈레이터블록(1)의 보어(2)에 고정되는 밸브하우징(3), 밸브하우징(3)에 결합된 원통형 슬리브(4), 밸브하우징(3) 반대편의 슬리브(4)에 결합된 밸브코어(5), 슬리 브(4) 내에 진퇴 가능하게 설치된 아마츄어(6)를 구비한다. 또 밸브하우징(3) 내에 압입 고정되며 제1오리피스(7a)가 마련된 밸브시트(7), 밸브하우징(3) 내에 진퇴하도록 설치되며 상부에 제1오리피스(7a)보다 작은 제2오리피스(8a)가 형성되고 하부에 제1오리피스(7a)를 개폐하는 개폐부(8b)를 갖춘 개폐부재(8)를 포함한다.Figure 1 shows a conventional normal closed solenoid valve. The valve is coupled to a valve housing (3) fixed to the bore (2) of the modulator block (1), a cylindrical sleeve (4) coupled to the valve housing (3), and a sleeve (4) opposite the valve housing (3). An armature 6 provided in the valve core 5 and the sleeve 4 in such a manner as to be movable forward and backward is provided. In addition, the valve seat 7 is press-fitted and fixed in the valve housing 3, and the valve seat 7 provided with the first orifice 7a, and installed in the valve housing 3, is retracted and has a second orifice 8a smaller than the first orifice 7a. And an opening and closing member 8 having an opening and closing portion 8b for opening and closing the first orifice 7a at a lower portion thereof.

이러한 솔레노이드밸브는 자기력에 의해 아마츄어(6)가 밸브코어(5) 쪽으로 이동하면 상대적으로 작은 제2오리피스(8a)가 먼저 개방되고, 제2오리피스(8a) 개방 후 제2오리피스(8a) 상류와 하류의 압력차가 작아지면 개방스프링(9)이 개폐부재(8)를 밀어올림으로써 상대적으로 큰 제1오리피스(7a)가 개방된다. 따라서 이러한 솔레노이드밸브는 작은 힘으로도 유로를 쉽게 개방할 수 있다.Such a solenoid valve has a relatively small second orifice 8a opening first when the armature 6 moves toward the valve core 5 by a magnetic force, and upstream of the second orifice 8a after opening the second orifice 8a. When the downstream pressure difference becomes small, the relatively large first orifice 7a is opened by the opening spring 9 pushing the opening / closing member 8. Therefore, such a solenoid valve can easily open the flow path even with a small force.

전술한 솔레노이드밸브는 밸브하우징과 밸브시트가 별도로 마련되고, 밸브하우징 내에 밸브시트가 압입 고정되는 형태기 때문에 부품수가 많고 구조가 복잡하여 제조가 어려운 문제가 있었다. 따라서 제조원가도 높았다.The solenoid valve described above has a problem in that the valve housing and the valve seat are separately provided, and the valve seat is press-fitted and fixed in the valve housing so that the number of parts is complicated and the structure is difficult to manufacture. 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 구성이 단순하여 제조가 용이하도록 하고 제조비용도 줄일 수 있도록 하는 브레이크시스템용 솔레노이드밸브를 제공하는 것이다.The present invention is to solve such problems, it is an object of the present invention to provide a solenoid valve for a brake system that is simpler than the conventional configuration to facilitate the manufacture and to reduce the manufacturing cost.

전술한 목적을 달성하기 위한 본 발명에 따른 브레이크시스템용 솔레노이드밸브는 제1오리피스를 형성하는 시트부가 일체로 마련된 원통형 슬리브와; 상기 시트부 반대편의 상기 슬리브에 결합된 밸브코어와; 상기 슬리브 내에 진퇴하도록 설치되고 내부에 내측 유로가 형성되며, 일단에 상기 제1오리피스보다 작은 제2오리피스가 형성되고 타단에 상기 제1오리피스의 개폐를 위한 제1개폐부가 마련된 개폐부재와; 상기 슬리브 내에 진퇴 가능하게 설치되며 상기 제2오리피스를 개폐하는 제2개폐부를 갖춘 아마츄어와; 상기 아마츄어를 상기 제2오리피스 쪽으로 가압하는 복원스프링과; 상기 제1오리피스의 개방을 위해 상기 개폐부재를 상기 아마츄어 쪽으로 이동시키는 개방스프링과; 상기 모듈레이터블록 보어의 내부에 위치하는 상기 슬리브에 반경방향으로 연통하도록 형성된 오일유로를 포함한다.A solenoid valve for a brake system according to the present invention for achieving the above object is a cylindrical sleeve provided with a seat portion integrally formed with the first orifice; A valve core coupled to the sleeve opposite the seat portion; An opening and closing member installed in the sleeve and having an inner flow path formed therein, a second orifice smaller than the first orifice at one end thereof, and an opening and closing member having a first opening and closing portion for opening and closing the first orifice at the other end thereof; An armature removably mounted in the sleeve and having a second opening and closing portion for opening and closing the second orifice; A restoring spring for pressing the armature toward the second orifice; An opening spring for moving the opening and closing member toward the amateur to open the first orifice; And an oil flow path configured to radially communicate with the sleeve located inside the modulator block bore.

상기 시트부는 상기 슬리브의 일단으로 부터 상기 슬리브 내측으로 변형되어서 연장된다.The seat portion extends from one end of the sleeve into the sleeve.

상기 개방스프링은 일단이 상기 시트부의 외측과 상기 슬리브의 내면 사이에 마련된 스프링지지홈에 지지되고, 타단이 상기 개폐부재에 마련된 스프링지지턱에 지지된다.One end of the open spring is supported by a spring support groove provided between the outside of the seat portion and the inner surface of the sleeve, and the other end is supported by a spring support jaw provided in the opening / closing member.

상기 슬리브의 외면에는 상기 슬리브를 모듈레이터블록에 고정하기 위한 플랜지가 결합될 수 있다.A flange for fixing the sleeve to the modulator block may be coupled to an outer surface of the sleeve.

본 발명에 따른 솔레노이드밸브는 제1오리피스가 형성된 시트부가 슬리브와 일체로 마련되기 때문에 부품수가 줄어 종래보다 구성을 단순화할 수 있는 효과가 있다. The solenoid valve according to the present invention has the effect that the number of parts is reduced since the seat portion in which the first orifice is formed is integrated with the sleeve, thereby simplifying the construction.

또 본 발명에 따른 솔레노이드밸브는 슬리브가 모듈레이터블록의 보어 내부로 진입한 상태로 장착되고 슬리브 외측의 플랜지가 모듈레이터블록에 직접 고정되기 때문에 조립을 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 since the sleeve is mounted in the bore of the modulator block and the flange outside the sleeve is directly fixed to the modulator block. 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.

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, 원통형의 슬리브(10), 슬리브(10) 내에 설치된 개폐부재(20)와 아마츄어(30), 슬리브(10) 단부에 결합된 밸브코어(40), 슬리브(10) 외측에 설치된 여자코일조립체(60)를 구비한다.As shown in FIG. 2, the solenoid valve for the brake system according to the present invention is coupled to an end portion of the cylindrical sleeve 10, the opening / closing member 20 installed in the sleeve 10, the amateur 30, and the sleeve 10. The valve core 40 and the excitation coil assembly 60 provided outside the sleeve 10 are provided.

슬리브(10)는 한 쪽이 모듈레이터블록(100)의 보어(101) 내부로 진입하도록 설치된다. 슬리브(10)는 모듈레이터블록(100)의 유입유로(102)와 연통될 수 있도록 보어(101) 내부로 진입한 부분에 반경방향으로 연통하도록 형성된 오일유로(11)를 구비하고, 보어(101) 내부로 진입한 쪽의 단부는 모듈레이터블록(100)의 배출유로(103)와 연통하도록 개방된다.One side of the sleeve 10 is installed to enter the bore 101 of the modulator block 100. The sleeve 10 has an oil passage 11 formed to radially communicate with a portion entering the bore 101 so as to communicate with the inflow passage 102 of the modulator block 100, and the bore 101. An end portion entering the inside is opened to communicate with the discharge passage 103 of the modulator block 100.

보어(101) 내부로 진입한 슬리브(10)에는 그 일단으로부터 그 내측으로 연장 되면서 외경이 축소되는 형태로 변형되며 제1오리피스(13)를 형성하는 시트부(12)가 마련된다. 이러한 시트부(12)는 슬리브(10)를 성형하는 과정에서 드로잉가공 등을 통하여 슬리브(10)와 일체로 마련된다.The sleeve 10 that enters the bore 101 is provided with a seat portion 12 that extends from one end to the inside thereof and is deformed to reduce the outer diameter and forms the first orifice 13. The sheet part 12 is provided integrally with the sleeve 10 through a drawing process or the like in the process of forming the sleeve 10.

개폐부재(20)는 원통형으로 마련되며 슬리브(10) 내에 진퇴 가능하게 설치된다. 개폐부재(20)는 내부에 상하로 관통하는 내측유로(21)를 구비하고, 상부에 제1오리피스(13)보다 직경이 작은 제2오리피스(22)를 구비한다. 또 개폐부재(20)의 하부에는 제1오리피스(13)의 개폐를 위한 제1개폐부(23)가 마련된다. The opening and closing member 20 is provided in a cylindrical shape and is removably installed in the sleeve 10. The opening / closing member 20 has an inner flow passage 21 penetrating up and down therein, and has a second orifice 22 having a diameter smaller than that of the first orifice 13 thereon. In addition, a first opening and closing part 23 for opening and closing the first orifice 13 is provided below the opening and closing member 20.

개폐부재(20)의 외면에는 제1오리피스(13)를 개방하는 방향으로 개폐부재(20)를 이동시키는 개방스프링(24)이 설치된다. 개방스프링(24)은 일단이 시트부(12) 외측과 슬리브(10) 내면 사이에 형성되는 스프링지지홈(15) 내에 지지되고 타단이 개폐부재(20)의 외면에 마련된 플랜지형태의 스프링지지턱(25)에 지지된다. 따라서 개폐부재(20)는 아마츄어(30)가 가압하지 않는 한 제1오리피스(13)를 개방하는 방향으로 이동하여 제1오리피스(13)를 개방할 수 있다.On the outer surface of the opening and closing member 20, an opening spring 24 for moving the opening and closing member 20 in the direction of opening the first orifice 13 is installed. The open spring 24 has a flange-like spring support jaw, one end of which is supported in a spring support groove 15 formed between the outside of the seat 12 and the inner surface of the sleeve 10, and the other end of which is provided on the outer surface of the opening / closing member 20. It is supported by 25. Accordingly, the opening and closing member 20 may move in the direction of opening the first orifice 13 so as to open the first orifice 13 unless the amateur 30 is pressurized.

슬리브(10) 외면에는 슬리브(10)를 모듈레이터블록(100)에 고정함과 동시에 보어(101) 입구를 폐쇄할 수 있는 플랜지(17)가 결합된다. 플랜지(17)는 용접 등에 의하여 슬리브(10) 외면에 고정된다. 또 슬리브(10) 외측에는 원통형의 필터부재(18)가 설치된다. 필터부재(18)는 모듈레이터블록(100)의 유입유로(102)로부터 슬리브(10)의 오일유로(11)로 유입되는 오일의 이물질을 걸러준다. 필터부재(18)는 슬리브(10)의 외면에 장착된 상태에서 슬리브(10)와 함께 모듈레이터블록(100)의 보어(101) 내측으로 진입하도록 결합된다.The outer surface of the sleeve 10 is coupled to the flange 17 that can secure the sleeve 10 to the modulator block 100 and at the same time close the inlet of the bore 101. The flange 17 is fixed to the outer surface of the sleeve 10 by welding or the like. In addition, a cylindrical filter member 18 is installed outside the sleeve 10. The filter member 18 filters foreign matters from the oil flowing into the oil channel 11 of the sleeve 10 from the inflow channel 102 of the modulator block 100. The filter member 18 is coupled to enter the bore 101 of the modulator block 100 together with the sleeve 10 in a state of being mounted on the outer surface of the sleeve 10.

밸브코어(40)는 슬리브(10)의 상측 단부에 압입되는 형태로 결합됨으로써 슬리브(10)의 상단 개구를 폐쇄한다. 도 5에 도시한 바와 같이, 밸브코어(40)와 슬리브(10)의 결합을 위해 밸브코어(40)의 외면에는 둘레를 따라 결합홈(41)이 형성되고, 슬리브(10)에는 변형에 의하여 결합홈(41)으로 진입하여 걸리는 걸림부(16)가 마련된다. 이는 슬리브(10) 내로 밸브코어(40)를 진입시킨 후 변형에 의해 걸림부(16)를 형성함으로써 밸브코어(40)가 슬리브(10)에 고정될 수 있도록 한 것이다. 이러한 결합구조는 종래의 용접방식에 비하여 슬리브(10)와 밸브코어(40)의 결합이 용이하도록 하고 결합공정도 단순화할 수 있도록 한다.The valve core 40 is coupled to the upper end of the sleeve 10 to be press-fitted to close the top opening of the sleeve 10. As shown in FIG. 5, the coupling groove 41 is formed on the outer surface of the valve core 40 along the circumference for coupling the valve core 40 and the sleeve 10, and the sleeve 10 is deformed by deformation. The engaging portion 16 is provided to enter the engaging groove 41 is provided. This allows the valve core 40 to be fixed to the sleeve 10 by entering the valve core 40 into the sleeve 10 and forming the catching portion 16 by deformation. This coupling structure makes the coupling of the sleeve 10 and the valve core 40 easier than the conventional welding method, and also allows the coupling process to be simplified.

아마츄어(30)는 슬리브(10) 내에 상하로 진퇴 가능하게 설치된다. 아마츄어(30)는 외경이 슬리브(10)의 내경에 대응하는 원통형태이며, 외면에 상하방향으로 오일이 유통하는 유로(31)를 구비한다. 아마츄어(30) 하단에는 제2오리피스(22)를 개폐할 수 있는 제2개폐부(32)가 마련된다. 이는 아마츄어(30)의 진퇴동작에 의해 제2오리피스(22)가 개폐될 수 있도록 한 것이다. The amateur 30 is installed in the sleeve 10 so as to be able to move up and down. The amateur 30 has a cylindrical shape whose outer diameter corresponds to the inner diameter of the sleeve 10, and has an oil passage 31 through which oil flows in the vertical direction on the outer surface. A second opening and closing part 32 capable of opening and closing the second orifice 22 is provided at the bottom of the amateur 30. This allows the second orifice 22 to be opened and closed by the advancing and retracting motion of the amateur 30.

아마츄어(30)와 밸브코어(40) 사이에는 아마츄어(30)를 개폐부재(20) 쪽으로 가압하는 복원스프링(70)이 설치된다. 복원스프링(70)은 아마츄어(30) 상부에 형성된 스프링수용홈(33)에 수용된다. 이는 복원스프링(70)이 아마츄어(30)를 개폐부재(20) 쪽으로 가압함으로써 평소 제2오리피스(22)를 폐쇄할 수 있도록 한 것이다. 복원스프링(70)은 개방스프링(24)의 탄성력을 이기고 아마츄어(30) 및 개폐부재(20)를 가압할 수 있도록 개방스프링(24)보다 탄성이 큰 것으로 이루어진다.Between the amateur 30 and the valve core 40 is provided with a restoring spring 70 for pressing the amateur 30 toward the opening and closing member 20. Restoration spring 70 is accommodated in the spring receiving groove 33 formed on the upper portion of the amateur (30). This allows the restoring spring 70 to close the second orifice 22 by pressing the armature 30 toward the opening and closing member 20. Restoring spring 70 is made of a greater elasticity than the open spring 24 to overcome the elastic force of the open spring 24 and to press the amateur 30 and the opening and closing member 20.

여자코일조립체(60)는 원통형으로 마련되며, 밸브코어(40)와 슬리브(10)의 상측 외면에 결합된다. 여자코일조립체(60)는 원통형의 코일케이스(61), 코일케이스(61) 내에 수용된 보빈(62), 보빈(62)의 외면에 권선된 여자코일(63)을 포함한다. 여자코일(63)에 전원을 인가할 때 자기장이 형성되도록 함으로써 아마츄어(30)를 밸브코어(40) 쪽으로 이동시켜 제2오리피스(22)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 40 and the sleeve 10. 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. The magnetic field is formed when the excitation coil 63 is applied with power to move the armature 30 toward the valve core 40 so as to open the second orifice 22.

이러한 솔레노이드밸브를 모듈레이터블록(100)에 장착할 때는 슬리브(10) 외측에 필터부재(18)를 조립한 상태에서 슬리브(10)를 모듈레이터블록(100)의 보어(101)로 진입시킨다. 그리고 이 상태에서 모듈레이터블록(100)의 보어(101) 입구 쪽을 변형시킨다. 이렇게 하면, 모듈레이터블록(100)의 변형부(110)가 플랜지(17)를 덮도록 변형되어 플랜지(17)를 고정함으로써 밸브의 장착이 완료된다.When the solenoid valve is mounted on the modulator block 100, the sleeve 10 enters the bore 101 of the modulator block 100 while the filter member 18 is assembled to the outside of the sleeve 10. In this state, the inlet side of the bore 101 of the modulator block 100 is deformed. In this case, the deformation part 110 of the modulator block 100 is deformed so as to cover the flange 17 so that the mounting of the valve is completed by fixing the flange 17.

이러한 브레이크시스템용 솔레노이드밸브는 제1오리피스(22)를 구성하는 시트부(24)가 슬리브(10)와 일체로 마련되는 형태이기 때문에 부품수가 줄어 종래보다 구성을 단순화할 수 있다. 즉 밸브하우징과 밸브시트가 별도로 마련되고 밸브하우징과 슬리브가 결합되는 형태인 종래의 밸브에 비하여 구성을 단순화할 수 있다. 특히 시트부(12)가 일체로 된 슬리브(10)는 딥드로잉 가공 등을 통하여 쉽게 제조할 수 있다. The solenoid valve for the brake system has a form in which the seat portion 24 constituting the first orifice 22 is integrally provided with the sleeve 10, thereby reducing the number of parts and simplifying the construction. That is, the valve housing and the valve seat may be separately provided, and the configuration may be simplified as compared to the conventional valve in which the valve housing and the sleeve are coupled to each other. In particular, the sleeve 10 in which the seat part 12 is integrated can be easily manufactured through a deep drawing process or the like.

또 본 실시 예는 밸브코어(40)와 슬리브(10)도 결합홈(41)과 슬리브(10)의 변형에 의한 걸림부(16)에 의해 결합되기 때문에 결합이 용이하다. 이처럼 본 실시 예는 종래보다 구성이 단순하고 제조가 용이하기 때문에 제조비용도 줄일 수 있다. In addition, in the present embodiment, the valve core 40 and the sleeve 10 are also coupled by the engaging portion 16 due to the deformation of the coupling groove 41 and the sleeve 10. As such, the present embodiment can reduce the manufacturing cost because the configuration is simple and easy to manufacture.

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(70)이 아마츄어(30)를 제2오리피스(22) 쪽으로 밀어주게 되므로 아마츄어(30)의 제2개폐부(32)가 제2오리피스(22)를 폐쇄한다. 또 아마츄어(30)는 복원스프링(70)의 가압력에 의해 개폐부재(20)를 가압하므로 제1오리피스(13)도 개폐부재(20)에 의해 폐쇄된다. 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 excitation coil assembly 60, the restoring spring 70 pushes the armature 30 toward the second orifice 22, so that the second opening and closing part of the armature 30 is closed. 32 closes the second orifice 22. In addition, since the armature 30 presses the opening / closing member 20 by the pressing force of the restoring spring 70, the first orifice 13 is also closed by the opening / closing member 20. Therefore, in this case, the oil does not flow from the inflow passage 102 of the modulator block 100 toward the discharge passage 103.

여자코일조립체(60)에 전원이 인가되면, 도 3에 도시한 바와 같이, 아마츄어(30)와 밸브코어(40) 사이에 작용하는 자기력에 의해 아마츄어(30)가 복원스프링(70)의 탄성을 이기고 밸브코어(40) 쪽으로 이동한다. 따라서 제2오리피스(22)는 개방된다. 제2오리피스(22)가 개방되면, 유입유로(102)의 오일은 필터부재(18)를 통과한 후 슬리브(10)의 오일유로(11)를 통해 슬리브(10) 내로 유입된다. 그리고 이 오일은 개폐부재(20)의 제2오일피스(22) 통과하여 배출유로(103) 쪽으로 흐른다.When power is applied to the excitation coil assembly 60, as shown in FIG. 3, the armature 30 is resilient to the restoring spring 70 due to the magnetic force acting between the armature 30 and the valve core 40. Win and move toward the valve core 40. Thus, the second orifice 22 is open. When the second orifice 22 is opened, the oil of the inflow passage 102 passes through the filter member 18 and then flows into the sleeve 10 through the oil passage 11 of the sleeve 10. The oil flows through the second oil piece 22 of the opening / closing member 20 toward the discharge passage 103.

제2오리피스(22)가 먼저 개방된 후 제2오리피스(22) 상류와 하류의 압력차가 작아지면, 도 4에 도시한 바와 같이, 개방스프링(24)의 탄성에 의해 개폐부재(20)가 상승하므로 직경이 큰 제1오리피스(13)가 개방된다. 따라서 오일은 제2오리피스(22)를 통하지 않고 직경이 큰 제1오리피스(13)를 통하여 배출유로(103) 쪽으로 흐른다. 이처럼 본 발명의 솔레노이드 밸브는 직경이 작은 제2오리피스(22)가 먼저 개방된 후 직경이 큰 제1오리피스(13)가 개방되는 방식으로 유로가 2단에 걸쳐 순차 개방되므로 작은 힘으로도 밸브를 쉽게 개방할 수 있다.If the pressure difference between the upstream and downstream of the second orifice 22 decreases after the second orifice 22 is first opened, as shown in FIG. 4, the opening and closing member 20 is raised by the elasticity of the opening spring 24. Therefore, the first orifice 13 having a large diameter is opened. Therefore, the oil flows toward the discharge flow path 103 through the first orifice 13 having a large diameter and not through the second orifice 22. As described above, the solenoid valve of the present invention opens the channel sequentially through the second stage in such a manner that the first orifice 13 having a larger diameter is opened after the second orifice 22 having a smaller diameter is opened first. It can be opened easily.

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, 제1 및 제2오리피스가 폐쇄된 상태를 나타낸 것이다.2 is a cross-sectional view of a solenoid valve for a brake system according to the present invention, in which the first and second orifices are closed.

도 3은 본 발명에 따른 브레이크시스템용 솔레노이드밸브의 단면도로, 제2오리피스가 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 second orifice is opened.

도 4는 본 발명에 따른 브레이크시스템용 솔레노이드밸브의 단면도로, 제1오리피스가 개방된 상태를 나타낸 것이다.4 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 5는 도 2의 Ⅴ부 상세도이다.5 is a detailed view of part V of FIG. 2.

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

10: 슬리브 12: 시트부10: sleeve 12: seat portion

13: 제1오리피스 20: 개폐부재13: orifice 20: opening and closing member

22: 제2오리피스 30: 아마츄어22: the second orifice 30: amateur

40: 밸브코어 60: 여자코일조립체40: valve core 60: female coil assembly

Claims (4)

제1오리피스를 형성하는 시트부가 일체로 마련된 원통형 슬리브와; 상기 시트부 반대편의 상기 슬리브에 결합된 밸브코어와; 상기 슬리브 내에 진퇴하도록 설치되고 내부에 내측 유로가 형성되며, 일단에 상기 제1오리피스보다 작은 제2오리피스가 형성되고 타단에 상기 제1오리피스의 개폐를 위한 제1개폐부가 마련된 개폐부재와; 상기 슬리브 내에 진퇴 가능하게 설치되며 상기 제2오리피스를 개폐하는 제2개폐부를 갖춘 아마츄어와; 상기 아마츄어를 상기 제2오리피스 쪽으로 가압하는 복원스프링과; 상기 제1오리피스의 개방을 위해 상기 개폐부재를 상기 아마츄어 쪽으로 이동시키는 개방스프링과; 상기 모듈레이터블록 보어의 내부에 위치하는 상기 슬리브에 반경방향으로 연통하도록 형성된 오일유로를 포함하는 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.A cylindrical sleeve provided integrally with a sheet portion forming a first orifice; A valve core coupled to the sleeve opposite the seat portion; An opening and closing member installed in the sleeve and having an inner flow path formed therein, a second orifice smaller than the first orifice at one end thereof, and an opening and closing member having a first opening and closing portion for opening and closing the first orifice at the other end thereof; An armature removably mounted in the sleeve and having a second opening and closing portion for opening and closing the second orifice; A restoring spring for pressing the armature toward the second orifice; An opening spring for moving the opening and closing member toward the amateur to open the first orifice; A solenoid valve for a brake system, characterized in that it comprises an oil passage formed in radial communication with the sleeve located inside the modulator block bore. 제1항에 있어서,The method of claim 1, 상기 시트부는 상기 슬리브의 일단으로 부터 상기 슬리브 내측으로 변형되어서 연장되는 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The seat portion is a solenoid valve for a brake system, characterized in that extending from one end of the sleeve to the inner side of the sleeve. 제2항에 있어서,The method of claim 2, 상기 개방스프링은 일단이 상기 시트부의 외측과 상기 슬리브의 내면 사이에 마련된 스프링지지홈에 지지되고, 타단이 상기 개폐부재에 마련된 스프링지지턱에 지지된 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The open spring is a solenoid valve for a brake system, characterized in that one end is supported by a spring support groove provided between the outside of the seat portion and the inner surface of the sleeve, the other end is supported by a spring support jaw provided in the opening and closing member. 제1항에 있어서,The method of claim 1, 상기 슬리브 외면에는 상기 슬리브를 모듈레이터블록에 고정하기 위한 플랜지가 결합된 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The outer surface of the sleeve is a solenoid valve for a brake system, characterized in that a flange for fixing the sleeve to the modulator block is coupled.
KR1020070102374A 2007-10-11 2007-10-11 Solenoid valve for brake system KR101187198B1 (en)

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KR20150117845A (en) * 2014-04-11 2015-10-21 주식회사 만도 Solenoid valve for brake system

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JP3580046B2 (en) * 1996-09-09 2004-10-20 アイシン精機株式会社 Plunger storage sleeve fixing device for solenoid valve
DE10038091B4 (en) * 2000-08-04 2009-01-15 Robert Bosch Gmbh Solenoid valve, in particular for a slip-controlled, hydraulic vehicle brake system
DE102005061352A1 (en) * 2005-09-15 2007-03-22 Continental Teves Ag & Co. Ohg Electromagnetic valve, in particular for slip-controlled motor vehicle brake systems
KR101002972B1 (en) 2005-12-12 2010-12-22 주식회사 만도 Solenoid valve for brake system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150117845A (en) * 2014-04-11 2015-10-21 주식회사 만도 Solenoid valve for brake system

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