KR101024500B1 - Solenoid valve for electronic brake system - Google Patents

Solenoid valve for electronic brake system Download PDF

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Publication number
KR101024500B1
KR101024500B1 KR1020090012719A KR20090012719A KR101024500B1 KR 101024500 B1 KR101024500 B1 KR 101024500B1 KR 1020090012719 A KR1020090012719 A KR 1020090012719A KR 20090012719 A KR20090012719 A KR 20090012719A KR 101024500 B1 KR101024500 B1 KR 101024500B1
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South Korea
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solenoid valve
flow path
valve
inlet
outlet
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KR1020090012719A
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Korean (ko)
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KR20100093674A (en
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황용석
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주식회사 만도
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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
    • F16K27/003—Housing formed from a plurality of the same valve elements
    • 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
    • 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

모듈레이터블록에 인렛 솔레노이드밸브와 아웃렛 솔레노이드밸브가 설치되되, 아웃렛 솔레노이드밸브는, 밸브하우징과, 밸브하우징의 상부에 위치하며 단부에 구체가 설치된 아마츄어와, 밸브하우징의 중공에 압입 설치되며 구체에 의해 개폐되는 제1오리피스가 형성된 밸브시트와, 밸브하우징의 하부에 압입 설치되며 인렛유로 및 아웃렛유로가 형성된 필터시트를 포함하되, 필터시트의 인렛유로는 이 필터시트의 반경방향으로 형성되고, 인렛유로는 필터시트에는 길이방향으로 관통되게 형성되어 상기 제1오리피스와 연결되는 중심유로와 연결되고, 중심유로는 밸브하우징과 밸브시트의 사이에 형성된 연결유로와 연결되고, 연결유로는 필터시트의 길이방향으로 형성된 아웃렛유로와 연결된다. 본 발명에 의하면 인렛유로, 중심유로, 연결유로, 아웃렛유로의 구성이 단순하게 형성됨에 따라 제품 크기의 소형화 및 가공비용을 절감할 수 있다.The inlet solenoid valve and the outlet solenoid valve are installed in the modulator block.The outlet solenoid valve is installed in the valve housing, the upper part of the valve housing and the sphere with the sphere installed at the end, and is press-fitted into the hollow of the valve housing and opened and closed by the sphere. And a valve seat having a first orifice formed therein, and a filter sheet press-fitted to a lower portion of the valve housing and having an inlet flow path and an outlet flow path, wherein the inlet flow path of the filter sheet is formed in the radial direction of the filter sheet. The filter sheet is formed to penetrate in the longitudinal direction and is connected to the central channel connected to the first orifice, the central channel is connected to the connection channel formed between the valve housing and the valve seat, and the connection channel is in the length direction of the filter sheet. It is connected to the outlet flow path formed. According to the present invention, since the inlet flow path, the central flow path, the connection flow path, and the outlet flow path are simply formed, the product size can be reduced in size and the processing cost can be reduced.

Description

전자제어 브레이크 시스템용 솔레노이드밸브{Solenoid valve for electronic brake system}Solenoid valve for electronic brake system {Solenoid valve for electronic brake system}

본 발명은 전자제어 브레이크 시스템용 솔레노이드밸브에 관한 것으로, 더욱 상세하게는 전자제어 브레이크 시스템에서 구성을 단순화할 수 있는 노말 클로즈형 솔레노이드밸브에 관한 것이다.The present invention relates to a solenoid valve for an electronically controlled brake system, and more particularly to a normal closed solenoid valve that can simplify the configuration in an electronically controlled brake system.

일반적으로 자동차의 브레이크 장치에는 차량의 주행 안전성을 향상시키기 위하여 ABS(Anti-lock Brake System), TCS(Traction Control System), ESP(Electronic Stability Program) 등의 장치가 설치되어 있다. 이때 ABS(전자제어 브레이크)장치는 차량의 슬립량에 따라 휠 실린더의 제동압을 제어하도록 구성된다.In general, in order to improve driving safety of a vehicle, a brake device of a vehicle is provided with devices such as an anti-lock brake system (ABS), a transaction control system (TCS), and an electronic stability program (ESP). At this time, the ABS (electronic control brake) device is configured to control the braking pressure of the wheel cylinder in accordance with the slip amount of the vehicle.

상기의 전자제어 브레이크장치는 도 1에 도시된 바와 같이 마스터실린더(50)에서 발생된 유압이 릴리프 밸브(51)를 통해 인렛(Inlet) 솔레노이드밸브(52)를 통해 각각의 휠 실린더(WC)에 공급되고, 휠 실린더(WC)에 연결된 아웃렛(Outlet) 솔레노이드밸브(53)를 통해 과다한 압력이 저압 어큐물레이터(Low Pressure Accumulator:LPA,54)에 저장되도록 구성되어 있다.As shown in FIG. 1, in the electronically controlled brake device, hydraulic pressure generated in the master cylinder 50 is applied to each wheel cylinder WC through an inlet solenoid valve 52 through a relief valve 51. Excess pressure is supplied to the low pressure accumulator LPA 54 via an outlet solenoid valve 53 connected to the wheel cylinder WC.

또한, 저압 어큐물레이터(54)에 저장된 유압은 휠 실린더(WC)의 유압이 저하될 때 펌프(55)에 의해 다시 사용될 수 있게 된다.In addition, the hydraulic pressure stored in the low pressure accumulator 54 can be used again by the pump 55 when the hydraulic pressure of the wheel cylinder WC is lowered.

여기서. 인렛 솔레노이드밸브(52)는 노말 오픈(Normal Open)형 솔레노이드밸브이고, 아웃렛 솔레노이드밸브(53)은 노말 클로우즈(Mormal Close)형 솔레노이드밸브를 사용하게 되는 바, 인렛, 아웃렛 솔레노이드밸브(52,53)을 통해 휠 실린더(WC)의 유압을 조절하게 된다.here. The inlet solenoid valve 52 is a normal open solenoid valve, and the outlet solenoid valve 53 is a normal closed solenoid valve, inlet and outlet solenoid valves 52 and 53. Through the hydraulic pressure of the wheel cylinder (WC) is adjusted.

인렛, 아웃렛 솔레노이드밸브(52,53)의 설치 상태는 도 2에 도시된 바와 같이 모듈레이터블록(56)에 인렛, 아웃렛 솔레노이드밸브(52,53)가 설치된 상태에서, 마스터실린더에 공급되는 유압이 인렛 솔레노이드밸브의 제1입구(밸브를 개방시키는 방향,57)로 인가되도록 모듈레이터블록(56)에 형성된 제1유로(58)와, 아웃렛 솔레노이드밸브(53)의 제1입구(밸브를 개방시키는 방향,59)에 저압 어큐물레이터(54)에 연결하도록 모듈레이터블록(56)에 형성된 제2유로(60)와, 인렛, 아웃렛 솔레노이드밸브의 제2입구(밸브를 닫는 방향,61,62)에 휠 실린더(WC)의 유압이 인가되도록 모듈레이터블록(56)에 형성된 제3유로(63)로 구성되어 있다.As shown in FIG. 2, the inlet and outlet solenoid valves 52 and 53 are installed in the modulator block 56 with the inlet and outlet solenoid valves 52 and 53 installed, and the hydraulic pressure supplied to the master cylinder is inlet. A first flow path 58 formed in the modulator block 56 to be applied to the first inlet of the solenoid valve (a direction of opening the valve 57), and a first inlet of the outlet solenoid valve 53 (a direction of opening the valve, A second cylinder 60 formed in the modulator block 56 so as to be connected to the low pressure accumulator 54 and a wheel cylinder at the second inlet (the valve closing direction 61 and 62) of the inlet and outlet solenoid valves. It consists of the 3rd flow path 63 formed in the modulator block 56 so that the hydraulic pressure of (WC) may be applied.

여기서, 아웃렛 솔레노이드밸브(53)는 노말 클로우즈 타입으로 휠 실린더(WC)의 높은 유압이 밸브가 닫히는 방향으로 공급되면 밸브가 열리는 방향보다 높은 전류가 필요하기 때문에, 이를 개선한 아웃렛 솔레노이드밸브(53) 및 모듈레이터블록(56)의 유로가 도 3에 개시되어 있다.Here, the outlet solenoid valve 53 is a normal closed type, because when the high hydraulic pressure of the wheel cylinder WC is supplied in the direction in which the valve is closed, a higher current than the opening direction of the valve is required, thereby improving the outlet solenoid valve 53. And a flow path of the modulator block 56 is shown in FIG. 3.

이는 아웃렛 솔레노이드밸브(53)의 제1입구(59)에 휠 실린더(WC)의 유압이 인가되도록 모듈레이터블록(56)에 제4유로(64)를 형성하고, 제2입구(62)에 저압 어 큐물레이터(54)가 연결되도록 제5유로(65)를 형성한 것으로, 아웃렛 솔레노이드밸브(53)의 작동 시 전류 감소 및정밀한 제어를 가능하도록 한 것이다.This forms a fourth flow path 64 in the modulator block 56 so that the hydraulic pressure of the wheel cylinder WC is applied to the first inlet 59 of the outlet solenoid valve 53, and the low pressure is applied to the second inlet 62. The fifth flow path 65 is formed to connect the cumulator 54, so that the current is reduced and precise control is performed when the outlet solenoid valve 53 is operated.

그러나, 상술한 바와 같이 아웃렛 솔레노이드밸브의 제1입구에 휠 실린더의 유압이 인가되도록 함과 아울러 제2입구에 저압 어큐물레이터를 연결하도록 모듈레이터블록에 제4,5유로를 형성하게 되면, 모듈레이터블록의 가공이 복잡하게 되고, 이로 인해 가공정밀도 저하 및 가공 효율의 저하가 발생되는 문제점이 있다.However, as described above, when the hydraulic pressure of the wheel cylinder is applied to the first inlet of the outlet solenoid valve and the fourth and fifth flow paths are formed in the modulator block to connect the low pressure accumulator to the second inlet, the modulator block Processing becomes complicated, and this causes a problem in that processing precision is lowered and processing efficiency is lowered.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 모듈레이터블록의 유로를 단순하게 형성하여 제품 크기의 소형화와, 가공비용 절감을 목적으로 한다.The present invention is to solve the above problems, it is intended to simplify the flow of the modulator block to reduce the size of the product, and to reduce the processing cost.

상기 목적을 달성하기 위한 본 발명에 의한 전자제어 브레이크 시스템용 솔레노이드밸브는 모듈레이터블록에 인렛 솔레노이드밸브와 아웃렛 솔레노이드밸브가 설치되되, 마스터실린더에 공급되는 유압이 상기 인렛 솔레노이드밸로 인가되도록 상기 모듈레이터블록에 형성된 제1유로와, 상기 아웃렛 솔레노이드밸브와 저압 어큐물레이터를 연결하도록 상기 모듈레이터블록에 형성된 제2유로와, 상기 인렛 솔레노이드밸브와 상기 아웃렛 솔레노이드밸브를 연결하는 제3유로를 포함하되,The solenoid valve for an electronic control brake system according to the present invention for achieving the above object is provided with an inlet solenoid valve and an outlet solenoid valve in the modulator block, so that the hydraulic pressure supplied to the master cylinder is applied to the inlet solenoid valve. A first flow path formed therein, a second flow path formed in the modulator block to connect the outlet solenoid valve and the low pressure accumulator, and a third flow path connecting the inlet solenoid valve and the outlet solenoid valve,

상기 아웃렛 솔레노이드밸브는,The outlet solenoid valve,

길이방향으로 중공이 형성된 밸브하우징과, 상기 밸브하우징의 상부에 위치하며 단부에 구체가 설치된 아마츄어와, 상기 밸브하우징의 중공에 압입 설치되며 상기 구체에 의해 개폐되는 제1오리피스가 형성된 밸브시트와, 상기 밸브하우징의 하부에 압입 설치되며 인렛유로 및 아웃렛유로가 형성된 필터시트를 포함하며,A valve housing in which a hollow housing is formed in a longitudinal direction, an armature disposed at an upper end of the valve housing, and a sphere is installed at an end thereof, and a first orifice press-fitted into the hollow of the valve housing and opened and closed by the sphere; The filter seat is press-installed in the lower part of the valve housing and includes a filter sheet having an inlet flow passage and an outlet flow passage,

상기 필터시트의 인렛유로는 상기 제3유로와 연결되도록 상기 필터시트의 반경방향으로 형성되고,The inlet flow path of the filter sheet is formed in the radial direction of the filter sheet so as to be connected to the third flow path,

상기 필터시트에는 길이방향으로 관통되게 형성되어 상기 제1오리피스와 상기 인렛유로를 연결하는 중심유로가 형성되고,The filter sheet is formed to penetrate in the longitudinal direction to form a central channel connecting the first orifice and the inlet channel,

상기 밸브하우징의 중공과 상기 밸브시트의 사이에는 상기 밸브하우징의 길이방향으로 형성된 연결유로가 형성되고,A connection flow path formed in the longitudinal direction of the valve housing is formed between the hollow of the valve housing and the valve seat.

상기 필터시트의 아웃렛유로는 상기 필터시트의 길이방향으로 형성되어 상기 연결유로와 상기 제2유로를 연결하는 것을 특징으로 한다.The outlet passage of the filter sheet is formed in the lengthwise direction of the filter sheet and connects the connection passage and the second passage.

상기 중심유로의 하단에는 상기 중심유로를 통해 유입되는 유체의 흐름 속도를 제한하기 위한 제2오리피스가 형성되는 것을 특징으로 한다.A second orifice is formed at the lower end of the central channel to limit the flow rate of the fluid flowing through the central channel.

이러한 본 발명은 인렛유로, 중심유로, 연결유로, 아웃렛유로를 단슨하게 구성함에 따라 제품 크기의 소형화 및 가공비용을 절감할 수 있다.In the present invention, the inlet flow path, the central flow path, the connection flow path, and the outlet flow path can be configured in a simple manner to reduce the size of the product and reduce the processing cost.

이하, 도면을 참조하여 본 발명에 따른 전자제어 브레이크 시스템용 솔레노이드밸브를 설명한다.Hereinafter, a solenoid valve for an electronic control brake system according to the present invention will be described with reference to the drawings.

도 4는 본 발명에 따른 전자제어 브레이크 시스템용 솔레노이드밸브의 설치 상태를 도시한 단면도이고, 도 5는 도 4에 도시된 아웃렛 솔레노이드밸브의 구성을 보인 단면도이다.4 is a cross-sectional view showing an installation state of a solenoid valve for an electronically controlled brake system according to the present invention, and FIG. 5 is a cross-sectional view showing the configuration of the outlet solenoid valve shown in FIG.

도 4에 도시된 바와 같이 인렛, 아웃렛 솔레노이드밸브(52,100)의 설치 상태는 모듈레이터블록(56)에 인렛, 아웃렛 솔레노이드밸브(52,100)가 설치된 상태에서, 마스터실린더(50)에서 공급되는 유압이 인렛 솔레노이드밸브(52)로 인가되도록 모듈레이터블록(56)에 형성된 제1유로(58)와, 아웃렛 솔레노이드밸브(100)와 저압 어큐물레이터(54)에 연결하도록 모듈레이터블록(56)에 형성된 제2유로(60)와, 인렛, 아웃렛 솔레노이드밸브(52,100)에 휠 실린더(WC)의 유압이 인가되도록 모듈레이터블록(56)에 형성된 "T"자형상의 제3유로(63)로 구성되어 있다.As shown in FIG. 4, the inlet and outlet solenoid valves 52 and 100 are installed in the state where the inlet and outlet solenoid valves 52 and 100 are installed in the modulator block 56, and the hydraulic pressure supplied from the master cylinder 50 is the inlet solenoid. A first flow path 58 formed in the modulator block 56 to be applied to the valve 52, and a second flow path formed in the modulator block 56 to be connected to the outlet solenoid valve 100 and the low pressure accumulator 54 ( 60) and a "T" shaped third flow path 63 formed in the modulator block 56 so that the hydraulic pressure of the wheel cylinder WC is applied to the inlet and outlet solenoid valves 52 and 100. As shown in FIG.

여기서, 전자제어 브레이크 시스템용 솔레노이드밸브에서 인렛 솔레노이드밸브(52)의 구성은 종래와 동일함에 따라 아웃렛 솔레노이드밸브(100)만 도 5를 참조하여 설명한다.Here, since the configuration of the inlet solenoid valve 52 in the solenoid valve for the electronically controlled brake system is the same as in the related art, only the outlet solenoid valve 100 will be described with reference to FIG. 5.

아웃렛 솔레노이드밸브(100)는 도 5에 도시된 바와 같이 모듈레이터블록(56)의 보어(56a)에 압입되어 설치되는 밸브하우징(110)을 구비한다. 이러한 밸브하우징(110)의 일단에는 그 내부에 설치되는 아마츄어(120)가 진퇴할 수 있도록 원통형 슬리브(130)가 결합되며, 슬리브(130)의 개방된 단부에는 슬리브(130)의 개방된 부분을 폐쇄함과 동시에 아마츄어(120)를 진퇴시키기 위한 밸브코어(140)가 결합된다.The outlet solenoid valve 100 has a valve housing 110 press-fitted into the bore 56a of the modulator block 56, as shown in FIG. A cylindrical sleeve 130 is coupled to one end of the valve housing 110 so that the armature 120 installed therein may retreat, and an open portion of the sleeve 130 may be connected to an open end of the sleeve 130. At the same time as closing the valve core 140 for advancing and retracting the amateur 120 is coupled.

슬리브(130)와 밸브코어(140)의 외측에는 슬리브(130) 내의 아마츄어(120)를 진퇴시키기 위한 여자코일(150)이 설치되고, 슬리브(130) 내의 아마츄어(120)의 상부와 밸브코어(140)의 사이에는 여자코일(150)이 전원이 인가되지 않을 때 아마츄 어(120)를 밸브하우징(110) 쪽으로 밀어서 이동시키도록 아마츄어(120)를 탄성 지지하는 복원스프링(141)이 설치된다.An outer side of the sleeve 130 and the valve core 140 is provided with an excitation coil 150 for advancing the amateur 120 in the sleeve 130, the upper portion of the amateur 120 in the sleeve 130 and the valve core ( Between the 140 is provided with a restoring spring 141 for elastically supporting the armature 120 to push the armature 120 toward the valve housing 110 when the excitation coil 150 is not powered. .

또, 밸브하우징(110)에는 내부에 길이방향의 중공(115)이 형성되고, 이러한 중공(115)에는 밸브시트(160)가 설치된다. 밸브시트(160)에는 제1오리피스(165)가 형성되고, 이러한 제1오리피스(165)에는 아마츄어(120)의 하단부에 설치되는 구체(125)에 의해 아마츄어(120)의 진퇴에 따라 개폐된다.In addition, the hollow housing 115 is formed in the valve housing 110 in the longitudinal direction, and the valve seat 160 is installed in the hollow 115. A first orifice 165 is formed in the valve seat 160, and the first orifice 165 is opened and closed in accordance with the advancing of the armature 120 by the sphere 125 installed at the lower end of the armature 120.

밸브하우징(110)의 하부에는 밸브의 입구 및 출구에 해당하는 인렛유로(171) 및 아웃렛유로(175)가 형성된 필터시트(170)가 조립된다. 이러한 필터시트(170)는 밸브하우징(110)의 내주면이 그 외주연에 압입되는 대경부와, 밸브시트(160)의 내주면에 그 외주연이 압입되는 소경부를 포함한다.The filter seat 170 having the inlet flow passage 171 and the outlet flow passage 175 corresponding to the inlet and the outlet of the valve are assembled at the lower portion of the valve housing 110. The filter sheet 170 includes a large diameter portion in which the inner circumferential surface of the valve housing 110 is pressed into the outer circumference thereof, and a small diameter portion in which the outer circumference thereof is pressed into the inner circumferential surface of the valve seat 160.

또, 필터시트(170)에는 상술한 바와 같이 제3유로(63)와 연통되어 필터시트(170)의 내부로 유체가 유입되는 인렛유로(171)가 형성되고, 이러한 인렛유로(171)는 필터시트(170)의 반경방향으로 형성된다. 이때, 인렛유로(171)에는 제3유로(63)를 통해 유입되는 유체를 필터링하기 위한 필터(177)가 설치된다.In addition, the inlet flow passage 171 is formed in the filter sheet 170 in communication with the third flow passage 63 to introduce the fluid into the filter sheet 170 as described above, and the inlet flow passage 171 is a filter. It is formed in the radial direction of the sheet 170. At this time, the inlet flow path 171 is provided with a filter 177 for filtering the fluid flowing through the third flow path (63).

필터시트(170)의 소경부에는 인렛유로(171)와 밸브시트(160)의 제1오리피스(165)를 연결하는 중심유로(173)가 형성된다. 이러한 중심유로(173)는 인렛유로(171)로부터 소경부의 상단까지 길이방향으로 관통하도록 형성된다. 중심유로(173)의 하단에는 이 중심유로(173)를 통해 유입되는 유체의 흐름 속도를 제한하기 위한 제2오리피스(174)가 형성된다. A central channel 173 is formed at the small diameter portion of the filter sheet 170 to connect the inlet channel 171 and the first orifice 165 of the valve seat 160. The central channel 173 is formed to penetrate in the longitudinal direction from the inlet channel 171 to the upper end of the small diameter portion. A second orifice 174 is formed at the lower end of the central channel 173 to limit the flow rate of the fluid flowing through the central channel 173.

밸브시트(160)가 압입된 밸브하우징(110)의 내주면 즉, 밸브하우징(110)과 밸브시트(160)의 사이에는 제1오리피스(165)를 통과한 유체를 아웃렛유로(175)로 유출시키기 위하여 밸브하우징(110)의 길이방향으로 형성된 연결유로(161)가 형성된다.The fluid passing through the first orifice 165 is discharged to the outlet flow path 175 between the inner circumferential surface of the valve housing 110 into which the valve seat 160 is press-fitted, that is, between the valve housing 110 and the valve seat 160. In order to form the connection passage 161 formed in the longitudinal direction of the valve housing 110 is formed.

또한, 필터시트(170)에는 상술한 바와 같이 연결유로(161)와 연결되는 아웃렛유로(175)가 형성되며, 이러한 아웃렛유로(175)는 도시된 바와 같이 필터시트(170)를 수직 관통하도록 형성되어 제2유로(60)와 연결된다.In addition, the filter sheet 170 has an outlet channel 175 connected to the connection channel 161 as described above, and the outlet channel 175 is formed to vertically penetrate the filter sheet 170 as shown. It is connected to the second flow path 60.

즉, 상기와 같은 구성을 가진 아웃렛 솔레노이드밸브(53)는 제3유로(63)를 통해 유입된 유체가 필터시트(170)의 인렛유로(171)를 통해 필터시트(170)의 내부로 유입되고, 필터시트(170)의 유체가 중심유로(173)를 통해 제1오리피스(165)를 통과한 후 다시 연결유로(161)와 아웃렛유로(175)를 통해 제2유로(60) 쪽으로 배출될 수 있도록 한 것이다.That is, in the outlet solenoid valve 53 having the above configuration, the fluid introduced through the third passage 63 is introduced into the filter sheet 170 through the inlet passage 171 of the filter sheet 170. After passing through the first orifice 165 through the central channel 173, the fluid of the filter sheet 170 may be discharged toward the second channel 60 through the connection channel 161 and the outlet channel 175. It would be.

이에 따라 본 발명에서는 제3유로(63)를 통해 유입되는 유체가 제2유로(60)를 통해 저압 어큐물레이터(54)로 유입될 수 있도록, 간단한 구조의 인렛유로(171), 중심유로(173), 연결유로(161), 아웃렛유로(175)를 형성함에 따라 제품 크기의 소형화 및 가공비용을 절감할 수 있다.Accordingly, in the present invention, the inlet flow path 171 of the simple structure, the central flow path (ie, the fluid flowing through the third flow path 63) may flow into the low pressure accumulator 54 through the second flow path 60. 173, the connection passage 161 and the outlet passage 175 may be formed to reduce the size of the product and reduce the processing cost.

도 1은 일반적인 전자제어 브레이크 시스템을 도시한 개략도이다.1 is a schematic diagram illustrating a general electronically controlled brake system.

도 2는 도 1에 도시된 휠 실린더의 유압제어를 위해 적용되는 솔레노이드밸브의 설치상태를 도시한 단면도이다.2 is a cross-sectional view showing an installation state of a solenoid valve applied for the hydraulic control of the wheel cylinder shown in FIG.

도 3은 도 1에 도시된 휠 실린더의 유압제어를 위해 적용되는 또 다른 솔레노이드밸브의 설치상태를 도시한 단면도이다.3 is a cross-sectional view showing an installation state of another solenoid valve applied for the hydraulic control of the wheel cylinder shown in FIG.

도 4는 본 발명에 따른 전자제어 브레이크 시스템용 솔레노이드밸브의 설치상태를 도시한 단면도이다.4 is a cross-sectional view showing an installation state of a solenoid valve for an electronically controlled brake system according to the present invention.

도 5는 도 4에 도시된 아웃렛 솔레노이드밸브를 도시한 단면도이다.FIG. 5 is a cross-sectional view of the outlet solenoid valve illustrated in FIG. 4.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

56 : 모듈레이터블록 100 : 아웃렛 솔레노이드밸브56: Modulator block 100: Outlet solenoid valve

110 : 밸브하우징 115 : 중공110: valve housing 115: hollow

120 : 아마츄어 125 : 구체120: amateur 125: sphere

130 : 슬리브 140 : 밸브코어130: sleeve 140: valve core

150 : 여자코일 160 : 벨브시트150: female coil 160: valve seat

161 : 연결유로 165 ; 제1오리피스161: connecting channel 165; First Orifice

170 : 필터시트 171 : 인렛유로170: filter sheet 171: inlet euro

173 : 중심유로 174 : 제2오리피스173: Central Euro 174: Orifice 2

175 : 아웃렛유로 177 : 필터175: outlet euro 177: filter

Claims (2)

모듈레이터블록(56)에 인렛 솔레노이드밸브(52)와 아웃렛 솔레노이드밸브(100)가 설치되되, 마스터실린더(50)에 공급되는 유압이 상기 인렛 솔레노이드밸브(52)로 인가되도록 상기 모듈레이터블록(56)에 형성된 제1유로(58)와, 상기 아웃렛 솔레노이드밸브(100)와 저압 어큐물레이터(54)를 연결하도록 상기 모듈레이터블록(56)에 형성된 제2유로(60)와, 상기 인렛 솔레노이드밸브(52)와 상기 아웃렛 솔레노이드밸브(100)를 연결하는 제3유로(63)를 포함하는 브레이크시스템용 솔레노이드밸브에 있어서,The inlet solenoid valve 52 and the outlet solenoid valve 100 are installed in the modulator block 56, and the hydraulic pressure supplied to the master cylinder 50 is applied to the inlet solenoid valve 52 to the modulator block 56. A first flow path 58 formed therein, a second flow path 60 formed in the modulator block 56 to connect the outlet solenoid valve 100 and the low pressure accumulator 54, and the inlet solenoid valve 52 In the solenoid valve for a brake system including a third passage (63) for connecting the outlet solenoid valve 100 and, 상기 아웃렛 솔레노이드밸브(100)는,The outlet solenoid valve 100, 길이방향으로 중공(115)이 형성된 밸브하우징(110)과, 상기 밸브하우징(110)의 상부에 위치하며 단부에 구체(125)가 설치된 아마츄어(120)와, 상기 밸브하우징(110)의 중공(115)에 압입 설치되며 상기 구체(125)에 의해 개폐되는 제1오리피스(165)가 형성된 밸브시트(160)와, 상기 밸브하우징(110)의 하부에 압입 설치되며 인렛유로(171) 및 아웃렛유로(175)가 형성된 필터시트(170)를 포함하며,A valve housing 110 in which a hollow 115 is formed in a longitudinal direction, an amateur 120 located at an upper portion of the valve housing 110, and a sphere 125 is installed at an end thereof, and a hollow of the valve housing 110. The valve seat 160 is press-installed in the 115 and the first orifice 165 is opened and closed by the sphere 125, and the press-fit is installed in the lower portion of the valve housing 110, the inlet flow path 171 and the outlet flow path It includes a filter sheet 170 is formed 175, 상기 필터시트(170)의 인렛유로(171)는 상기 제3유로(63)와 연결되도록 상기 필터시트(170)의 반경방향으로 형성되고,The inlet flow passage 171 of the filter sheet 170 is formed in the radial direction of the filter sheet 170 to be connected to the third flow passage 63, 상기 필터시트(170)에는 길이방향으로 관통되게 형성되어 상기 제1오리피스(165)와 상기 인렛유로(171)를 연결하는 중심유로(173)가 형성되고,The filter sheet 170 is formed to penetrate in the longitudinal direction to form a central flow passage 173 connecting the first orifice 165 and the inlet flow passage 171, 상기 밸브하우징(110)의 중공(115)과 상기 밸브시트(160)의 사이에는 상기 밸브하우징(110)의 길이방향으로 형성된 연결유로(161)가 형성되고,A connection flow path 161 formed in the longitudinal direction of the valve housing 110 is formed between the hollow 115 of the valve housing 110 and the valve seat 160. 상기 필터시트(170)의 아웃렛유로(175)는 상기 필터시트(170)의 길이방향으로 형성되어 상기 연결유로(161)와 상기 제2유로(60)를 연결하며,The outlet passage 175 of the filter sheet 170 is formed in the longitudinal direction of the filter sheet 170 to connect the connection passage 161 and the second passage 60, 상기 중심유로(173)의 하단에는 상기 중심유로(173)를 통해 유입되는 유체의 흐름 속도를 제한하기 위한 제2오리피스(174)가 형성된 것을 특징으로 하는 전자제어 브레이크 시스템용 솔레노이드밸브.A solenoid valve for an electronically controlled brake system, characterized in that a second orifice (174) is formed at the lower end of the central channel (173) for limiting the flow rate of the fluid flowing through the central channel (173). 삭제delete
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JP2003112619A (en) * 2001-09-21 2003-04-15 Mando Corp Solenoid valve for brake system
KR100423640B1 (en) * 2000-06-01 2004-03-22 주식회사 만도 Solenoid valve for brake system
KR100771016B1 (en) * 2003-04-21 2007-10-29 주식회사 만도 Solenoid valve for brake system

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KR100423640B1 (en) * 2000-06-01 2004-03-22 주식회사 만도 Solenoid valve for brake system
JP2003112619A (en) * 2001-09-21 2003-04-15 Mando Corp Solenoid valve for brake system
KR100771016B1 (en) * 2003-04-21 2007-10-29 주식회사 만도 Solenoid valve for brake system

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