KR20090037015A - Solenoid valve for brake system - Google Patents

Solenoid valve for brake system Download PDF

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Publication number
KR20090037015A
KR20090037015A KR1020070102370A KR20070102370A KR20090037015A KR 20090037015 A KR20090037015 A KR 20090037015A KR 1020070102370 A KR1020070102370 A KR 1020070102370A KR 20070102370 A KR20070102370 A KR 20070102370A KR 20090037015 A KR20090037015 A KR 20090037015A
Authority
KR
South Korea
Prior art keywords
sleeve
support member
valve
orifice
solenoid valve
Prior art date
Application number
KR1020070102370A
Other languages
Korean (ko)
Inventor
이충재
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 KR1020070102370A priority Critical patent/KR20090037015A/en
Publication of KR20090037015A publication Critical patent/KR20090037015A/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
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

A solenoid valve for brake system is provided to facilitate the joint between the seat support member and the sleeve and between the valve core and the sleeve, thereby reducing the manufacturing cost. A solenoid valve for brake system comprises a seat support member(20) in which an inner path(21), an outer path(22), and a filter(23) are integrated into one body, a valve seat(25) which is combined to the inside path of the seat support member and equipped with an orifice(26), a sleeve(30) which is combined in the exterior of the seat support member at one side, a valve core combined in the flange part opposite side of the sleeve, an armature(40) equipped with an opening and closing part(42) for opening and closing the orifice inside the sleeve, and a return spring(45) forcing the armature toward the orifice. The sleeve includes a flange(31) fixed to a modulator block(100) on the side end combined with the seat support member.

Description

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

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.

The vehicle anti-lock brake system senses the slip of the wheel and controls the braking pressure applied to the wheel to prevent the wheel from locking up during braking. This ensures safe braking by ensuring that the wheels do not slip during braking.

The brake system includes a plurality of solenoid valves for opening and closing the flow path of the brake hydraulic line for controlling the braking pressure. The solenoid valves include a normally open solenoid valve that normally maintains an open state, and a normally closed solenoid valve that normally maintains a closed state.

Figure 1 shows a conventional normal closed solenoid valve. The valve is press-fitted into the bore 14 of the modulator block 13 in which the flow paths of the brake system are formed, and a hollow valve housing 1 having an inlet 3 and an outlet 4 for the flow of fluid is formed. Compared.

At one end of the valve housing 1 a cylindrical sleeve 6 is engaged so that the armature 5 installed therein can retract, and the open end of the sleeve 6 is closed at the open end of the sleeve 6. And a valve core 7 for advancing and retracting the armature 5. The amateur 5 opens and closes the orifice 8a of the valve seat 8 through the forward and backward movement. For this purpose, the armature 5 has an opening and closing portion 5a extending toward the valve seat 8 through the hollow portion 2 of the valve housing 1.

Between the armature 5 and the valve core 7 is provided a restoring spring 9 for pressurizing the armature 5 so that the armature 5 can normally close the orifice 8a. The sleeve 6 and the valve core are provided. On the outside of (7), a female coil assembly 10 for advancing and retracting the amateur 5 is provided. An orifice member 11 is provided inside the valve housing 1, and a sealing member 12 is installed outside the valve housing 1 to seal between the valve housing 1 and the inner surface of the bore 14.

The solenoid valve opens the orifice 8a of the valve seat 8 while the armature 5 moves toward the valve core 7 by the magnetic force generated when power is applied to the excitation coil 10. When no power is applied to the excitation coil 10, the magnetic force does not act so that the armature 5 closes the orifice 8a by the elasticity of the restoring spring 9.

The solenoid valve described above is provided with a valve housing and a valve seat separately, and the valve seat is press-fitted and fixed in the valve housing, and the length of the solenoid valve is long because the opening and closing portion of the armature extends toward the valve seat through the hollow part of the valve housing. In addition, the number of parts and the structure is complicated, there was a difficult manufacturing problem. Therefore, the manufacturing cost was also high.

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.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems, and an object of the present invention is to provide a solenoid valve for a brake system that is easy to manufacture and can also reduce manufacturing costs.

The solenoid valve for the brake system according to the present invention for achieving the above object is formed in the inner passage penetrating in the longitudinal direction therein, the outer passage in a separate longitudinal direction is formed on the outside of the inner passage and the filter unit for filtering the oil An integrated sheet support member; A valve seat coupled to the inner oil of the seat support member and having an orifice; A sleeve having one side coupled to an outer surface of the sheet supporting member and having a flange portion fixed to a modulator block at an end thereof coupled with the sheet supporting member; A valve core coupled to the flange opposite the sleeve; An armature removably installed in the sleeve and having an opening and closing portion for opening and closing the orifice; And a restoring spring for pressing the armature toward the orifice.

The valve seat is characterized in that it is installed at one end of the inner passage in close proximity to the amateur.

The seat support member includes a stepped stepped portion formed on an outer surface of the sleeve to catch the flange portion of the sleeve.

The valve core has a coupling groove on the outer surface for coupling the sleeve, the sleeve includes a engaging portion to enter and engage the coupling groove by deformation.

The solenoid valve according to the present invention can be manufactured through the injection molding, the valve seat and the filter portion of the seat support member can be combined with the seat support member in an integrated form has an easy effect.

In addition, since the flange of the sleeve is directly fixed to the modulator block in a state in which the sleeve is coupled to the outer surface of the sheet support member, the present invention can be easily assembled and a separate welding or the like for coupling the sheet support member and the sleeve is performed. There is no need to do so has the effect of simplifying the manufacturing process.

In addition, the present invention has the effect of easy coupling because the valve core and the sleeve are also coupled by the engaging portion by the deformation of the coupling groove and the sleeve. Therefore, manufacturing cost can also be reduced.

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

As shown in FIG. 2, the solenoid valve for the brake system according to the present invention includes a seat support member 20 for supporting the valve seat 25, a sleeve 30, an amateur 40, a valve core 50, The excitation coil assembly 60 is provided.

The sheet support member 20 is installed to enter the bore 101 of the modulator block 100. The sheet support member 20 has an inner flow passage 21 penetrating therein in the vertical direction, and an outer flow passage 22 formed in the outer side of the inner flow passage 21 separately from the inner flow passage 21 and formed long in the vertical direction. It is provided. The upper portion of the inner passage 21 is provided with a cup-shaped valve seat 25 having an orifice 26. The valve seat 25 is formed by a deep drawing process.

The lower portion of the inner passage 21 of the sheet support member 20 communicates with the discharge passage 103 of the modulator block 100, and the lower portion of the outer passage 22 communicates with the inflow passage 102 of the modulator block 100. Communicating. In addition, the circumference of the sheet support member 20 is provided with a filter unit 23 for filtering foreign matter from the oil flowing into the outer passage 22 from the inflow passage 102. The sheet support member 20 has a stepped portion 24 having an outer diameter extending in the upper and lower middle portions so as to be stably supported in the bore 101 of the modulator block 100. The sheet support member 20 may be manufactured by resin injection molding, and by inserting the valve seat 25 and the filter portion 23 in the molding process, the sheet support member 20 may be integrated with the sheet support member 20.

The sleeve 30 has a cylindrical shape whose inner diameter corresponds to the upper outer diameter of the sheet support member 20. The sleeve 30 is coupled in a form in which the lower end is pressed into the outer surface of the sheet support member 20. In addition, the lower end is provided with a flange portion 31 which is fixed by the deformation of the modulator block 100 when the solenoid valve is mounted on the modulator block 100. The stepped portion 24 of the sheet support member 20 determines the engagement position of the flange portion 31 when the flange portion 31 is coupled, and at the same time supports the flange portion 31 so as to achieve a firm coupling with each other. .

The valve core 50 is coupled to the upper end of the sleeve 30 to be press-fitted to close the top opening of the sleeve 30. As shown in FIG. 3, the coupling groove 51 is formed on the outer surface of the valve core 50 along the circumference for coupling the valve core 50 to the sleeve 30, and the sleeve 30 is deformed by deformation. The engaging portion 32 is provided to enter the engaging groove 51 is provided. That is, the valve core 50 may be fixed to the sleeve 30 by entering the valve core 50 into the sleeve 30 and forming the catching part 32 by deformation. This coupling structure facilitates the coupling of the sleeve 30 and the valve core 50 as compared to the conventional welding method and can simplify the coupling process.

The amateur 40 is installed in the sleeve 30 so as to be able to move up and down. The amateur 40 is provided with a cylindrical shape whose outer diameter corresponds to the inner diameter of the sleeve 30, and an oil passage 41 through which oil flows in the up and down direction is formed on the outer surface. The lower end of the armature 40 is provided with an opening and closing portion 42 for closing the orifice 26 of the valve seat 25. The orifice 24 is to be opened and closed as the armature 40 advances.

Between the armature 40 and the valve core 50, a restoring spring 45 for pressing the armature 40 toward the valve seat 25 is installed. Restoration spring 45 is accommodated in the spring receiving groove 46 formed in the upper portion of the armature (40). This is because the restoring spring 45 presses the armature 40 toward the valve seat 25 so that the normally open or closed portion 42 can close the orifice 26.

The excitation coil assembly 60 is provided in a cylindrical shape and is coupled to the upper outer surface of the valve core 50 and the sleeve 30. The excitation coil assembly 60 includes a cylindrical coil case 61, a bobbin 62 accommodated in the coil case 61, and an excitation coil 63 wound on an outer surface of the bobbin 62. By applying a power to the excitation coil 63, the magnetic field is formed to operate the armature 40 toward the valve core 50 to open the orifice 26.

When the solenoid valve is mounted on the modulator block 100, the seat support member 20 is assembled in a state in which the seat support member 20, the sleeve 30, the armature 40, the restoration spring 45, and the valve core 50 are assembled. 20 enters the bore 101 of the modulator block 100. In this state, the inlet side of the bore 101 of the modulator block 100 is deformed. In this case, the deformable portion 110 of the modulator block 100 is deformed to cover the flange 31 of the sleeve 30 to fix the sleeve 30.

The solenoid valve for the brake system may be manufactured by injection molding the seat support member 20, and the valve seat 25 and the filter part 23 may be formed by the seat support member 20 in the process of forming the seat support member 20. It can be easily manufactured because it can be combined in an integrated form). In addition, since the flange 30 of the sleeve 30 is directly fixed to the modulator block 100 in the state in which the sleeve 30 is coupled to the outer surface of the seat support member 20, the assembly can be easily performed. And it is possible to simplify the manufacturing process because there is no need for a separate welding, etc. for coupling the sheet support member 20 and the sleeve 30. In addition, since the valve core 50 and the sleeve 30 are also coupled by the engaging portion 32 by the deformation of the coupling groove 51 and the sleeve 30, the coupling is easy. As such, the solenoid valve of the present embodiment is easy to manufacture and easy to assemble, thereby reducing the manufacturing cost.

The following describes the opening and closing operation of such a solenoid valve.

When power is not applied to the excitation coil assembly 60, the restoring spring 45 pushes the armature 40 toward the orifice 26, so that the opening and closing portion 42 of the armature 40 closes the orifice 26. Therefore, in this case, the oil does not flow from the inflow passage 102 of the modulator block 100 toward the discharge passage 103.

When power is applied to the excitation coil assembly 60, the armature 40 overcomes the elasticity of the restoring spring 45 by the magnetic force acting between the armature 40 and the valve core 50 and moves toward the valve core 50. do. Thus the orifice 26 is open. When the orifice 26 is opened in this way, the oil in the inflow passage 102 passes through the filter unit 23 and then flows into the sleeve 30 through the outer passage 22. The oil then flows through the oil piece 26 toward the discharge flow path 103.

1 is a cross-sectional view of a conventional solenoid valve for a brake system.

2 is a cross-sectional view of a solenoid valve for a brake system according to the present invention.

FIG. 3 is a detailed view of part III of FIG. 2.

Explanation of symbols on the main parts of the drawings

20: sheet support member 21: inner channel

22: outer passage 23: filter portion

25: valve seat 26: orifice

30: sleeve 31: flange

40: amateur 42: opening and closing part

45: restoring spring 50: valve core

60: female coil assembly

Claims (4)

A sheet support member having an inner flow passage formed therein in the longitudinal direction, an outer flow passage formed in a separate longitudinal direction on the outside of the inner flow passage, and a filter unit for filtering oil; A valve seat coupled to the inner oil of the seat support member and having an orifice; A sleeve having one side coupled to an outer surface of the sheet supporting member and having a flange portion fixed to a modulator block at an end thereof coupled with the sheet supporting member; A valve core coupled to the flange opposite the sleeve; An armature removably installed in the sleeve and having an opening and closing portion for opening and closing the orifice; And a restoring spring for pressing the armature toward the orifice. The method of claim 1, The valve seat is a solenoid valve for a brake system, characterized in that installed on one end of the inner flow passage in close proximity to the amateur. The method of claim 1, The seat support member is a solenoid valve for a brake system, characterized in that it comprises a stepped stepped portion formed on the outer surface so that the flange portion of the sleeve. The method of claim 1, The valve core has a coupling groove on the outer surface for coupling of the sleeve, The sleeve is a solenoid valve for a brake system, characterized in that it comprises a engaging portion to enter the engaging groove by deformation.
KR1020070102370A 2007-10-11 2007-10-11 Solenoid valve for brake system KR20090037015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070102370A KR20090037015A (en) 2007-10-11 2007-10-11 Solenoid valve for brake system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070102370A KR20090037015A (en) 2007-10-11 2007-10-11 Solenoid valve for brake system

Publications (1)

Publication Number Publication Date
KR20090037015A true KR20090037015A (en) 2009-04-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070102370A KR20090037015A (en) 2007-10-11 2007-10-11 Solenoid valve for brake system

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KR (1) KR20090037015A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101279423B1 (en) * 2011-07-12 2013-06-27 주식회사 만도 Solenoid valve for brake system
KR101418327B1 (en) * 2012-12-27 2014-07-10 주식회사 만도 Solenoid valve for brake system
KR20190028923A (en) * 2017-09-11 2019-03-20 주식회사 만도 Solenoid valve for brake control system
KR20190028916A (en) * 2017-09-11 2019-03-20 주식회사 만도 Solenoid valve for brake control system
US11313488B2 (en) 2017-08-08 2022-04-26 Mando Corporation Solenoid valve for brake system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101279423B1 (en) * 2011-07-12 2013-06-27 주식회사 만도 Solenoid valve for brake system
KR101418327B1 (en) * 2012-12-27 2014-07-10 주식회사 만도 Solenoid valve for brake system
US11313488B2 (en) 2017-08-08 2022-04-26 Mando Corporation Solenoid valve for brake system
KR20190028923A (en) * 2017-09-11 2019-03-20 주식회사 만도 Solenoid valve for brake control system
KR20190028916A (en) * 2017-09-11 2019-03-20 주식회사 만도 Solenoid valve for brake control system

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A201 Request for examination
E601 Decision to refuse application