KR20070062265A - Solenoid valve for brake system - Google Patents

Solenoid valve for brake system Download PDF

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Publication number
KR20070062265A
KR20070062265A KR1020050122073A KR20050122073A KR20070062265A KR 20070062265 A KR20070062265 A KR 20070062265A KR 1020050122073 A KR1020050122073 A KR 1020050122073A KR 20050122073 A KR20050122073 A KR 20050122073A KR 20070062265 A KR20070062265 A KR 20070062265A
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KR
South Korea
Prior art keywords
valve
valve housing
coil assembly
brake system
solenoid valve
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KR1020050122073A
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Korean (ko)
Inventor
윤현섭
최성호
이상철
Original Assignee
주식회사 만도
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Application filed by 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020050122073A priority Critical patent/KR20070062265A/en
Publication of KR20070062265A publication Critical patent/KR20070062265A/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
    • 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
    • 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
    • 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
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

A solenoid valve for a brake system, which is easily installed because the necessity of a sleeve is eliminated and an exciting coil assembly is installed in a coil case, is provided. A solenoid valve for a brake system includes a valve housing(20), a valve seat member(30) coupled with the lower side of the valve housing, an exciting coil assembly(50) coupled with the upper side of the valve housing, a coil case(60) fixed to the valve housing to surround the exciting coil assembly, a valve core(70) installed at an inner upper side of the coil case, an amateur(80) moving forward and backward within the exciting coil assembly and the valve housing, and a restoring spring(84) installed between the amateur and the valve core. The valve housing has a through hole(21) formed at the center portion and a flange(22) to be fixed to a modulator block(100), and is easily manufactured by forging. The valve seat member has one end with an orifice and a large diameter part(31) and a small diameter part(32).

Description

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

도 1은 종래 솔레노이드밸브의 구성을 보인 단면도이다.1 is a cross-sectional view showing the configuration of a conventional solenoid valve.

도 2는 본 발명에 따른 솔레노이드밸브의 구성을 보인 단면도이다.2 is a cross-sectional view showing the configuration of a solenoid valve according to the present invention.

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

20: 밸브하우징, 21: 관통공,20: valve housing, 21: through hole,

22: 플랜지, 30: 밸브시트부재,22: flange, 30: valve seat member,

31: 대경부, 32: 소경부,31: large neck, 32: small neck,

33: 오리피스, 34: 입구,33: orifice, 34: inlet,

50: 여자코일조립체, 60: 코일케이스,50: female coil assembly, 60: coil case,

70: 밸브코어, 80: 아마츄어.70: valve core, 80: amateur.

본 발명은 브레이크시스템용 솔레노이드밸브에 관한 것으로, 더욱 상세하게는 종래보다 용이하게 제조할 수 있도록 함으로써 제조비용을 줄일 수 있도록 한 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 to reduce the manufacturing cost by making it easier to manufacture than conventional.

일반적인 차량용 안티록 브레이크시스템은 바퀴의 슬립을 감지하여 바퀴 측 으로 가해지는 제동압력을 조절함으로써 바퀴가 잠기는 현상을 막아준다. 따라서 이러한 브레이크시스템을 갖춘 차량은 제동을 수행할 때 미끄러지거나 측방으로 밀리지 않고 방향성을 유지할 수 있어 안전한 제동이 가능하다.A general vehicle anti-lock brake system detects the wheel slip and adjusts the braking pressure applied to the wheel to prevent the wheel from locking up. Therefore, a vehicle equipped with such a brake system can maintain a direction without slipping or pushing sideways when performing braking, thereby enabling safe braking.

이러한 브레이크시스템은 제동압력의 제어를 위해 브레이크유압라인에 설치되는 다수의 솔레노이드밸브들을 구비한다. 솔레노이드밸브들은 평소 개방된 상태를 유지하는 노말 오픈(Normal Open)형 솔레노이드밸브와, 평소 폐쇄된 상태를 유지하는 노말 클로즈(Normal Close)형 솔레노이드밸브들을 포함한다.This brake system includes a plurality of solenoid valves installed in the brake hydraulic line for controlling the braking pressure. The solenoid valves include a normally open solenoid valve that is normally open and a normally closed solenoid valve that is normally closed.

도 1은 종래 브레이크시스템용 솔레노이드밸브의 일 예로, 통상적인 노말 클로즈형 솔레노이드밸브를 나타낸 것이다. 이 밸브는 안티록 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 구비한다. 1 is a view illustrating a conventional normal closed solenoid valve as an example of a solenoid valve for a conventional brake system. The valve is press-fitted into the bore 14 of the modulator block 13 in which the flow paths of the anti-lock brake system are formed, and the hollow valve housing 1 having the inlet 3 and the outlet 4 for the flow of the fluid. It is provided.

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 폐쇄하도록 장착되며 아마츄어(5)의 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 is engaged. 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 여자코일(10)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), the excitation coil 10 for advancing and retracting the amateur 5 is provided.

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 때에는 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. Since no magnetic force acts when no power is applied to the excitation coil 10, the armature 5 operates to close the orifice 8a by the elasticity of the restoring spring 9.

그런데 이러한 솔레노이드밸브는 밸브하우징(1)의 형상이 복잡한 관계로 제조가 어려운 결점이 있었다. 즉 밸브하우징(1)을 제조할 때 밸브하우징(1)의 외면에 존재하는 다수의 계단형 단차를 절삭가공하고 내부의 관통공(2) 및 출구(3) 등도 절삭가공을 통해 형성해야 했기 때문에 제조가 어려울 뿐 아니라 제조비용이 높은 문제가 있었다.However, such a solenoid valve has a defect that is difficult to manufacture due to the complicated shape of the valve housing (1). That is, when manufacturing the valve housing (1) it was necessary to cut a number of stepped steps present on the outer surface of the valve housing (1) and also to form through-holes (2) and outlets (3) inside the cutting through Not only manufacturing is difficult but also high manufacturing costs.

또 이러한 솔레노이드밸브는 모듈레이터블록(13)에 설치할 때 먼저 밸브하우징(1)을 결합시킨 후 추후 여자코일(10)을 슬리브(6) 외면에 끼우는 방식으로 장착해야 하기 때문에 설치공정이 복잡하였다. 또한 여자코일(10)이 슬리브(6)의 외측에 별도로 설치되는 구조이기 때문에 부품수가 많았다. In addition, since the solenoid valve is installed in the modulator block 13, the valve housing 1 must be coupled first, and then the excitation coil 10 must be mounted in a manner that is inserted into the sleeve 6, so that the installation process is complicated. In addition, the number of parts was large because the excitation coil 10 is a structure that is separately provided on the outer side of the sleeve 6.

본 발명은 이와 같은 문제점들을 해결하기 위한 것으로, 본 발명의 목적은 종래보다 용이하게 제조할 수 있게 함으로써 제조비용을 줄이고 생산성을 향상시킬 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 that can be manufactured more easily than the conventional to reduce the manufacturing cost and improve productivity.

이러한 목적을 달성하기 위한 본 발명에 따른 브레이크시스템용 솔레노이드 밸브는 중앙에 관통공이 형성되고 외면 둘레에 모듈레이터블록에 고정하기 위한 플랜지가 마련된 밸브하우징과, 상기 모듈레이터블록 내측의 상기 밸브하우징에 결합되며 그 둘레에 입구가 형성되고 일단에 오리피스가 형성된 컵 형태의 밸브시트부재와, 상기 모듈레이터블록 외측의 상기 밸브하우징에 결합된 코일케이스와, 상기 코일케이스 내에 설치된 원통형 여자코일조립체와, 상기 여자코일조립체의 내부에 진입하도록 설치되며 상단이 코일케이스 상부에 고정된 밸브코어와, 상기 밸브하우징과 상기 여자코일조립체에 의해 진퇴가 안내되도록 상기 밸브하우징 및 상기 여자코일조립체 내에 설치되며 상기 오리피스의 개폐를 위한 개폐부를 구비한 아마츄어와, 상기 아마츄어를 상기 오리피스 쪽으로 가압하도록 상기 밸브코어와 상기 아마츄어 사이에 설치된 복원스프링을 포함하는 것을 특징으로 한다.The solenoid valve for the brake system according to the present invention for achieving this object is coupled to the valve housing is formed with a through hole is formed in the center and a flange for fixing to the modulator block around the outer surface, and the valve housing inside the modulator block A cup-shaped valve seat member having an inlet formed at its periphery and having an orifice at one end thereof, a coil case coupled to the valve housing outside the modulator block, a cylindrical excitation coil assembly installed in the coil case, and the excitation coil assembly The valve core is installed to enter the inside and the upper end is fixed to the upper coil case, the valve housing and the excitation coil assembly to be guided by the valve housing and the excitation coil assembly to be installed in the opening and closing portion for opening and closing the orifice Amateur with, and the And a restoring spring installed between the valve core and the armature to urge the armature toward the orifice.

또한 상기 코일케이스는 딥드로잉(Deep Drawing)가공을 통해 형성되며 상단이 폐쇄된 것을 특징으로 한다.In addition, the coil case is formed through a deep drawing (Deep Drawing) processing is characterized in that the top is closed.

또한 상기 밸브시트부재는 딥드로잉가공을 통해 컵 형태로 성형된 것을 특징으로 한다.In addition, the valve seat member is characterized in that it is molded in the form of a cup through deep drawing processing.

또한 상기 여자코일조립체는 원통형의 보빈과, 상기 보빈에 권선되는 코일과, 상기 코일케이스를 관통하여 상부로 연장되는 전원접속부를 포함하는 것을 특징으로 한다.In addition, the excitation coil assembly is characterized in that it comprises a cylindrical bobbin, a coil wound on the bobbin, and a power connecting portion extending upward through the coil case.

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in detail.

본 발명에 따른 브레이크시스템용 솔레노이드밸브는 도 2에 도시한 바와 같 이, 밸브하우징(20), 밸브하우징(20)의 하부에 결합된 밸브시트부재(30), 밸브하우징(20) 상부에 결합되는 여자코일조립체(50), 여자코일조립체(50)를 감싸는 형태로 설치되며 밸브하우징(20)에 고정된 코일케이스(60), 여자코일조립체(50) 내부로 진입하도록 코일케이스(60)의 내측 상부에 설치된 밸브코어(70), 여자코일조립체(50)와 밸브하우징(20) 내에 진퇴 가능하게 설치된 아마츄어(80), 아마츄어(80)와 밸브코어(70) 사이에 설치된 복원스프링(84)을 포함한다.The solenoid valve for the brake system according to the present invention, as shown in Figure 2, the valve housing 20, the valve seat member 30 coupled to the lower portion of the valve housing 20, coupled to the valve housing 20 upper It is installed in a form surrounding the excitation coil assembly 50, the excitation coil assembly 50, the coil case 60 fixed to the valve housing 20, the coil case 60 to enter into the excitation coil assembly 50 of the Valve core 70 installed in the upper upper portion, the amateur coil assembly 50 and the armature 80 is installed removably in the valve housing 20, the restoring spring 84 provided between the armature 80 and the valve core 70 It includes.

밸브하우징(20)은 중앙에 길이방향으로 관통공(21)이 형성된 원통형상으로 마련되며, 모듈레이터블록(100)에 고정할 수 있도록 둘레에 형성된 플랜지(22)를 구비한다. 이러한 밸브하우징(20)은 종래 밸브하우징보다 형상이 단순화된 형태이기 때문에 통상적인 단조가공을 통해 용이하게 성형할 수 있다.The valve housing 20 is provided in a cylindrical shape in which a through hole 21 is formed in a longitudinal direction at the center thereof, and has a flange 22 formed at a circumference thereof so as to be fixed to the modulator block 100. Since the valve housing 20 has a simplified shape than a conventional valve housing, the valve housing 20 can be easily formed through a conventional forging process.

밸브시트부재(30) 직경이 큰 상측의 대경부(31)와 직경이 작은 하측의 소경부(32)를 구비하는 컵 형태로 마련된다. 또 소경부(32)의 하단 중심부에는 오리피스(33)가 형성되어 있다. 이러한 밸브시트부재(30)는 통상의 딥드로잉(Deep Drawing)가공을 통해 용이하게 성형할 수 있는 형태이다. 밸브시트부재(30)는 상측의 대경부(31)가 밸브하우징(20)의 외면에 압입이나 용접을 통해 결합된다. 또 소경부(32)의 둘레에는 오일의 유입을 위한 입구(34)가 형성된다. The valve seat member 30 is provided in the form of a cup having a large diameter portion 31 on the large side and a small diameter portion 32 on the lower side. In addition, an orifice 33 is formed at the lower center of the small diameter portion 32. The valve seat member 30 is a form that can be easily molded through a conventional deep drawing (Deep Drawing) processing. The valve seat member 30 is coupled to the large diameter portion 31 of the upper side by pressing or welding the outer surface of the valve housing 20. In addition, the inlet 34 for the inflow of oil is formed around the small diameter portion (32).

코일케이스(60)는 모듈레이터블록(100) 외측의 밸브하우징(20) 상부에 고정된다. 코일케이스(60)는 상부가 폐쇄된 원통형으로 마련되며 통상의 딥드로잉가공을 통해 성형된다. 이러한 코일케이스(60)는 하단이 밸브하우징(20)의 상측 외면에 스폿용접을 통해 고정된다.The coil case 60 is fixed to the upper part of the valve housing 20 outside the modulator block 100. The coil case 60 is provided in a cylindrical shape in which the upper part is closed, and is molded through a conventional deep drawing process. The coil case 60 is fixed to the lower end by spot welding on the upper outer surface of the valve housing 20.

여자코일조립체(50)는 코일케이스(60)의 내면에 밀착된 형태로 코일케이스(60) 내부에 설치된다. 여자코일조립체(50)는 내부에 밸브코어(70)와 아마츄어(80)가 수용될 수 있는 중공부를 구비한 원통형의 보빈(51), 보빈(51)의 외면에 권선되는 코일(52), 코일(52)에 전원을 인가할 수 있도록 코일케이스(60)의 상부를 관통하여 외부로 연장되는 전원접속부(53)를 포함한다. 이때 코일(52)은 내부의 오일에 의한 손상을 방지할 수 있도록 내유성이 큰 것을 채택하거나 보빈(51)을 사출을 통해 제조하는 가운데 보빈(51)에 매입되도록 함이 바람직하다.The exciting coil assembly 50 is installed in the coil case 60 in a form in close contact with the inner surface of the coil case 60. The excitation coil assembly 50 has a cylindrical bobbin 51 having a hollow portion in which a valve core 70 and an amateur 80 can be accommodated, a coil 52 wound on an outer surface of the bobbin 51, and a coil. And a power connection part 53 extending through the upper portion of the coil case 60 to the outside so as to apply power to the 52. At this time, the coil 52 is preferably adopted to adopt a large oil resistance to prevent damage by the oil inside or to be embedded in the bobbin 51 while manufacturing the bobbin 51 by injection.

밸브코어(70)는 여자코일조립체(50)의 보빈(51) 상측 내부에 진입하여 설치될 수 있도록 보빈(51)의 내경과 대응하는 외경을 구비하며, 상단이 코일케이스(60)의 상부에 고정된다.The valve core 70 has an outer diameter corresponding to the inner diameter of the bobbin 51 so that the valve core 70 can be installed to enter the upper side of the bobbin 51 of the excitation coil assembly 50, and the upper end of the valve core 70 is disposed on the upper portion of the coil case 60. It is fixed.

아마츄어(80)는 밸브하우징(20)의 내부와 여자코일조립체(50)의 보빈(51) 내부에 진퇴 가능하게 설치되며, 진퇴동작을 통해 밸브시트부재(30)의 오리피스(33)를 개폐할 수 있도록 직경이 축소된 형태로 오리피스(33) 쪽으로 연장된 개폐부(81)를 구비한다. 이러한 아마츄어(80)는 밸브하우징(20)의 내면 및 여자코일조립체(50)의 보빈(51) 내면에 의해 진퇴가 안내된다. The armature 80 is installed in the valve housing 20 and the bobbin 51 of the excitation coil assembly 50 in a retractable manner, and opens and closes the orifice 33 of the valve seat member 30 through the retraction operation. It has an opening and closing portion 81 extending toward the orifice 33 in the form of a reduced diameter so that. The armature 80 is guided forward and backward by the inner surface of the valve housing 20 and the inner surface of the bobbin 51 of the excitation coil assembly 50.

복원스프링(84)은 통상의 압축코일스프링으로 이루어지며, 아마츄어(80) 상부에 형성된 코일수용홈(83)에 수용된다. 이러한 복원스프링(84)은 여자코일조립체(50)에 전원이 인가되지 않을 때 아마츄어(80)를 오리피스(33) 쪽으로 가압함으로써 아마츄어(80)의 개폐부(81)가 오리피스(33)를 폐쇄할 수 있도록 한다.Restoring spring 84 is made of a conventional compression coil spring, it is accommodated in the coil receiving groove 83 formed on the armature (80). The restoring spring 84 presses the armature 80 toward the orifice 33 when no power is applied to the female coil assembly 50 so that the opening and closing portion 81 of the armature 80 can close the orifice 33. Make sure

또한 본 발명의 솔레노이드밸브는 솔레노이드밸브가 모듈레이터블록(100)의 보어(110)에 장착될 때 보어(110)의 내면과 밸브시트부재(30) 사이를 밀폐시키는 실링부재(90)를 포함한다.In addition, the solenoid valve of the present invention includes a sealing member 90 to seal between the inner surface of the bore 110 and the valve seat member 30 when the solenoid valve is mounted to the bore 110 of the modulator block 100.

이러한 솔레노이드밸브를 조립할 때는 밸브하우징(20)의 하부에 밸브시트부재(30)를 결합시키고, 코일케이스(60) 내에 여자코일조립체(50), 밸브코어(70), 아마츄어(80), 복원스프링(84)을 조립한 후, 코일케이스(60)의 하단을 밸브하우징(20)의 상부에 결합시키면 된다. When assembling such a solenoid valve, the valve seat member 30 is coupled to the lower part of the valve housing 20, and the excitation coil assembly 50, the valve core 70, the armature 80, and the restoring spring are installed in the coil case 60. After the 84 is assembled, the lower end of the coil case 60 may be coupled to the upper part of the valve housing 20.

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

여자코일조립체(50)에 전원이 인가되지 않을 때에는 복원스프링(84)이 아마츄어(80)를 오리피스(33) 쪽으로 밀어주게 되므로 아마츄어(80)의 개폐부(81)가 오리피스(33)를 폐쇄한다. 따라서 이때는 입구(34)로부터 오리피스(33) 쪽으로 오일이 흐르지 않는다.When power is not applied to the excitation coil assembly 50, the restoring spring 84 pushes the armature 80 toward the orifice 33, so that the opening and closing portion 81 of the armature 80 closes the orifice 33. Therefore, no oil flows from the inlet 34 toward the orifice 33.

이러한 상태에서 여자코일조립체(50)에 전원이 인가되면, 아마츄어(80)와 밸브코어(70) 사이에 발생하는 자기력에 의해 아마츄어(80)가 복원스프링(84)의 탄성을 이기고 밸브코어(70) 쪽으로 이동한다. 따라서 오리피스(33)는 개방된다.When power is applied to the excitation coil assembly 50 in this state, the armature 80 overcomes the elasticity of the restoring spring 84 by the magnetic force generated between the armature 80 and the valve core 70 and the valve core 70. Move to). Thus the orifice 33 is open.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 브레이크시스템용 솔레노이드밸브는 밸브하우징의 형상이 단순하기 때문에 밸브하우징을 통상의 단조가공을 통해 제조할 수 있고, 코일케이스와 밸브시트부재도 각각 딥드로잉 가공을 통해 용이하게 제조할 수 있기 때문에 종래의 솔레노이드밸브에 비하여 손쉽게 제조할 수 있는 효과가 있다. 따라서 제조비용도 줄일 수 있다.As described in detail above, the solenoid valve for the brake system according to the present invention can be manufactured through the conventional forging process, since the shape of the valve housing is simple, the coil case and the valve seat member also deep drawing processing Since it can be easily produced through the conventional solenoid valve has an effect that can be easily prepared compared to. Therefore, manufacturing cost can also be reduced.

또한 본 발명은 여자코일조립체가 코일케이스에 내장되고, 코일케이스가 밸브하우징에 고정되는 형태이기 때문에 종래의 슬리브와 같은 부품을 배제할 수 있어 구성을 단순화할 수 있을 뿐 아니라, 종래의 경우처럼 여자코일조립체를 별도로 설치할 필요가 없어 솔레노이드밸브를 모듈레이터블록에 장착하는 작업만으로 설치를 완료할 수 있는 효과가 있다. 즉 종래보다 설치공정을 단순화할 수 있다.In addition, according to the present invention, since the excitation coil assembly is built in the coil case and the coil case is fixed to the valve housing, a component such as a conventional sleeve can be eliminated, thereby simplifying the construction, and excitation as in the conventional case. There is no need to install the coil assembly separately, it is effective to complete the installation only by mounting the solenoid valve on the modulator block. In other words, the installation process can be simplified than before.

Claims (4)

중앙에 관통공이 형성되고 외면 둘레에 모듈레이터블록에 고정하기 위한 플랜지가 마련된 밸브하우징과, 상기 모듈레이터블록 내측의 상기 밸브하우징에 결합되며 그 둘레에 입구가 형성되고 일단에 오리피스가 형성된 컵 형태의 밸브시트부재와, 상기 모듈레이터블록 외측의 상기 밸브하우징에 결합된 코일케이스와, 상기 코일케이스 내에 설치된 원통형 여자코일조립체와, 상기 여자코일조립체의 내부에 진입하도록 설치되며 상단이 코일케이스 상부에 고정된 밸브코어와, 상기 밸브하우징과 상기 여자코일조립체에 의해 진퇴가 안내되도록 상기 밸브하우징 및 상기 여자코일조립체 내에 설치되며 상기 오리피스의 개폐를 위한 개폐부를 구비한 아마츄어와, 상기 아마츄어를 상기 오리피스 쪽으로 가압하도록 상기 밸브코어와 상기 아마츄어 사이에 설치된 복원스프링을 포함하는 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.A valve housing having a through hole formed in the center and having a flange for fixing to a modulator block around the outer surface thereof, and a cup-shaped valve seat coupled to the valve housing inside the modulator block and having an inlet formed therein and having an orifice at one end thereof. A member, a coil case coupled to the valve housing outside the modulator block, a cylindrical excitation coil assembly installed in the coil case, and a valve core fixed to an upper portion of the coil case and installed to enter the excitation coil assembly. And an amateur installed in the valve housing and the excitation coil assembly to guide the retreat by the valve housing and the excitation coil assembly, and having an opening and closing portion for opening and closing the orifice, and the valve to press the amateur side toward the orifice. Between the core and the amateur A solenoid valve for the brake system comprises a return spring installed. 제1항에 있어서,The method of claim 1, 상기 코일케이스는 딥드로잉(Deep Drawing)가공을 통해 형성되며 상단이 폐쇄된 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The coil case is formed through a deep drawing (Deep Drawing) processing, the solenoid valve for the brake system, characterized in that the top is closed. 제1항에 있어서, The method of claim 1, 상기 밸브시트부재는 딥드로잉가공을 통해 컵 형태로 마련된 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브.The valve seat member is a solenoid valve for a brake system, characterized in that provided in the form of a cup through a deep drawing process. 제1항에 있어서,The method of claim 1, 상기 여자코일조립체는 원통형의 보빈과, 상기 보빈에 권선되는 코일과, 상기 코일케이스를 관통하여 상부로 연장되는 전원접속부를 포함하는 것을 특징으로 하는 브레이크시스템용 솔레노이드밸브. The excitation coil assembly is a solenoid valve for a brake system, characterized in that it comprises a cylindrical bobbin, a coil wound on the bobbin, and a power connection portion extending upward through the coil case.
KR1020050122073A 2005-12-12 2005-12-12 Solenoid valve for brake system KR20070062265A (en)

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