KR20120029671A - Solenoid valve for brake systerm - Google Patents

Solenoid valve for brake systerm Download PDF

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Publication number
KR20120029671A
KR20120029671A KR1020100091610A KR20100091610A KR20120029671A KR 20120029671 A KR20120029671 A KR 20120029671A KR 1020100091610 A KR1020100091610 A KR 1020100091610A KR 20100091610 A KR20100091610 A KR 20100091610A KR 20120029671 A KR20120029671 A KR 20120029671A
Authority
KR
South Korea
Prior art keywords
sleeve
armature
solenoid valve
coil
brake system
Prior art date
Application number
KR1020100091610A
Other languages
Korean (ko)
Inventor
전재영
Original Assignee
주식회사 만도
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020100091610A priority Critical patent/KR20120029671A/en
Publication of KR20120029671A publication Critical patent/KR20120029671A/en

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Classifications

    • 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
    • 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

PURPOSE: A solenoid valve for a brake system is provided to facilitate process and assembly and simplify a structure by forming a coil installation part in both ends of a sleeve in one body. CONSTITUTION: A solenoid valve(1) for a brake system comprises a modulator block, a sleeve(20), an armature(13), a magnet core(10), a seat housing(19), and a valve seat(17). The sleeve includes coil installation parts which install coils in both ends of the sleeve to form electromagnetic field. The sleeve has a cylindrical shape with opened both ends. Both ends of the sleeve includes bent parts(21) which is bent outward. The coil installation part forms with the sleeve in one body, and locates in both ends of the sleeve. The coil installation part is wound with the coil to generate electromagnetic force to the armature.

Description

Solenoid Valve for Brake System {Solenoid Valve For Brake Systerm}

The present invention relates to a solenoid valve of a brake system, and more particularly, to a solenoid valve for a brake system that can simplify the structure, facilitate processing and assembly, and reduce the cost.

BACKGROUND In general, a vehicle is equipped with a brake system for braking. Recently, various types of systems for obtaining a more powerful and stable braking force have been proposed.

An example of a brake system is an anti-rock brake system (ABS) that prevents slippage of the wheel during braking and a brake traction control system (BTBS, Brake) that prevents slippage of the drive wheels during rapid start or acceleration of the vehicle. Traction Control System), Vehicle Lock Control System (VDC, Vehicle Dynamic Control Systerm) that keeps the vehicle running stably by controlling brake hydraulic pressure by combining anti-lock brake system and traction control.

The vehicle ABS has a plurality of solenoid valves installed in the middle of the hydraulic line connected from the master cylinder to the wheel cylinder or the hydraulic line returning from the wheel side to control the braking hydraulic pressure by opening and closing the flow path.

Such a solenoid valve includes a modulator block 100, a sleeve 104, an armature 102, a magnet core 101, a valve seat 105, and an excitation coil assembly 102, as shown in FIG. 1. .

The excitation coil assembly 120 is wound around the bobbin 122 and a coil 121 forming an electromagnetic field when a current is applied, and a coil case 123 formed of a hollow cylindrical shape surrounding one side of the coil 121 and opened. And a disk shaped flux ring 124 covering the opening face of the coil case 123.

In the center of the coil case 124, a cylindrical sleeve 104 having both sides opened therethrough, a magnet core 101 is inserted into and fixed to an upper opening of the sleeve 104, and an armature having a predetermined diameter in the lower opening. 102 is inserted into the magnet core 101 spaced apart from the predetermined interval so as to be movable up and down.

The armature 102 interacts with the electromagnetic field formed in the coil 121 and moves up and down.

The lower end of the armature 102 is formed integrally with a rod-shaped plunger 102a having a smaller diameter than the armature 102, interlocks with the armature 102, and the sphere 107 is provided at the lower end of the plunger 102a. do.

The outer circumferential surface of the plunger 102a is provided with a seat housing 110 into which the plunger 102a is movable. An oil inflow path 111 is formed at a side of the seat housing 110, and a valve seat 105 having an oil outflow path 112, which is opened and closed by a sphere 107 of the plunger 102a, is provided at the bottom of the seat housing 110.

Accordingly, when a current is applied to the coil 121 to generate an electromagnetic field, the magnetic flux flows along the excitation coil assembly 120, the armature 102, and the marknet core 101, whereby the armature 102 and the plunger ( The oil outflow path 112 is opened by moving 102a in the opposite direction to the valve seat 105 against the elastic force of the return spring 103.

When the current applied to the coil 121 is cut off, the armature 102 and the plunger 102a move to the valve seat 105 side by the elastic force of the return spring 103 to close the oil outflow path 112.

At this time, in order to quickly return the armature 102 and the plunger 102a, a separate sealing member 113 is used or the valve housing 110 is processed to fix and seal the block.

However, the bobbin 122 and the sleeve 104 of the excitation coil assembly 120 of the conventional solenoid valve described above have a problem of lowering efficiency when electromagnetic force is generated in the solenoid valve with a nonmagnetic material.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described prior art, and an object of the present invention is to provide a solenoid valve for a brake system that can simplify processing and assembly and reduce cost by simplifying a structure.

A solenoid valve for a brake system according to the present invention for achieving the above object is a modulator block, a sleeve inserted into the modulator block, an armature moving forward and backward in the sleeve, and the armature is inserted into one side of the sleeve A magnet core generating electromagnetic force to move forward and backward, a seat housing inserted into the other side of the sleeve to form an inlet flow path and an outlet flow path, and an orifice provided inside the seat housing and opened and closed by moving the armature forward and backward; In a solenoid valve for a brake system including a valve seat, the sleeve is characterized in that it comprises a coil mounting portion capable of forming an electromagnetic field by installing a coil at both ends.

In addition, the sleeve has a cylindrical shape in which both ends are open, and both ends include a bent portion formed by bending outward.

In addition, the coil installation portion is characterized in that it is formed integrally with the sleeve.

Further, in a solenoid valve for a brake system including a cylindrical sleeve having both ends open according to the present invention, and an armature advancing by an electromagnetic force inside the sleeve, both ends of the sleeve may generate electromagnetic force at the armature. It is characterized in that the coil installation portion is formed integrally so that the coil is wound.

The solenoid valve for the brake system according to the present invention has the effect of simplifying the valve structure to facilitate processing and assembly, and to reduce the cost.

1 is a view showing a solenoid valve of a conventional brake system.
2 is a view showing a solenoid valve according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

2 is a view showing a solenoid valve of a brake system according to an embodiment of the present invention,

The solenoid valve 1 includes a valve housing 15 inserted into a modulator block, a sleeve 20 coupled to the valve housing 15, and a magnet core 10 coupled to a sleeve 20 opposite the valve housing 15. ) And an armature 13 moving forward and backward in the sleeve 20.

At the lower end of the armature 13, a sphere 14 is provided.

A seat housing 19 press-fitted to the lower end of the sleeve 20 is provided inside the valve housing 15, and inside the seat housing 19, a valve seat for forming a flow path by advancing and moving the armature 13 ( 17) is provided.

One side of the valve housing 15 and the seat housing 19 is formed with a hole communicating with the inlet flow path 18a of the modulator block (not shown), and the orifice 16 of the valve seat 17 is formed in the seat housing 19. The outlet flow path 18b is formed in communication with the oil is discharged.

The valve seat 17 has a cylindrical shape with an orifice 16 formed at the center thereof, and the orifice 16 is opened and closed by the sphere 14 of the valve seat 17.

In addition, a return spring 12 for pressing the armature 13 toward the valve seat 17 is provided between the armature 13 and the magnet core 10.

The return spring 12 presses the armature 13 toward the valve seat 17 so that the armature 13 can open and close the orifice 16 of the valve seat 17.

The solenoid valve 1 moves the armature 13 toward the magnet core 10 by the magnetic force, and the coil 11 is coupled to the outside of the magnet core 10 and the sleeve 20 so that such a magnetic field is formed.

The sleeve 20 includes a bent portion 21 formed to be bent in an outward direction so that the coil 11 can be installed at both ends.

The bent portion 21 of the sleeve 20 is integrally formed at the upper and lower ends of the sleeve 20, and a coil 11 is wound around the bent portion 21 to form a magnetic field when power is applied.

When a current is applied to the coil 11 to generate an electromagnetic field, magnetic flux flows along the armature 13 and the magnet core 10, whereby the armature 13 moves toward the magnet core 10 and the orifice 16 is moved. Open.

Therefore, the oil introduced through the inlet flow passage 18a is discharged to the outlet flow passage 18b through the open orifice 16.

When the current applied to the coil 11 is cut off, the armature 13 moves toward the valve seat 17 by the elastic force of the return spring 12 to close the outlet flow path 18b.

Description of the Related Art [0002]
1: solenoid valve 10: magnet core
11: coil 12: return spring
13: armature 14: valve housing
19: seat housing 20: coil installation
21: bend

Claims (4)

A modulator block, a sleeve inserted into the modulator block, an armature moving forward and backward in the sleeve, a magnet core inserted into one side of the sleeve and generating an electromagnetic force to move the armature forward and backward, and the other side of the sleeve A solenoid valve for a brake system, comprising: a seat housing inserted to form an inlet flow passage and an outlet flow passage, and a valve seat provided on an inner side of the seat housing and having an orifice opened and closed by moving the armature.
The sleeve is a solenoid valve for a brake system, characterized in that it comprises a coil installation portion that can form an electromagnetic field by installing a coil at both ends. The method of claim 1,
The sleeve has a cylindrical shape in which both ends are open, and both ends include a bent portion formed by bending outward. The method of claim 1,
The coil installation portion is a solenoid valve for a brake system, characterized in that formed integrally with the sleeve. A solenoid valve comprising a cylindrical sleeve having open ends and an armature retreating by electromagnetic force inside the sleeve.
A solenoid valve for a brake system, characterized in that both ends of the sleeve are integrally formed with a coil installation unit in which a coil is wound so as to generate an electromagnetic force in the armature.
KR1020100091610A 2010-09-17 2010-09-17 Solenoid valve for brake systerm KR20120029671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100091610A KR20120029671A (en) 2010-09-17 2010-09-17 Solenoid valve for brake systerm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100091610A KR20120029671A (en) 2010-09-17 2010-09-17 Solenoid valve for brake systerm

Publications (1)

Publication Number Publication Date
KR20120029671A true KR20120029671A (en) 2012-03-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100091610A KR20120029671A (en) 2010-09-17 2010-09-17 Solenoid valve for brake systerm

Country Status (1)

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KR (1) KR20120029671A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160070269A (en) 2014-12-09 2016-06-20 (주)영완 Method of manfacturing armature of abs break system for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160070269A (en) 2014-12-09 2016-06-20 (주)영완 Method of manfacturing armature of abs break system for vehicle

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