KR20170007044A - Solenoid valve for damper - Google Patents

Solenoid valve for damper Download PDF

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Publication number
KR20170007044A
KR20170007044A KR1020150098669A KR20150098669A KR20170007044A KR 20170007044 A KR20170007044 A KR 20170007044A KR 1020150098669 A KR1020150098669 A KR 1020150098669A KR 20150098669 A KR20150098669 A KR 20150098669A KR 20170007044 A KR20170007044 A KR 20170007044A
Authority
KR
South Korea
Prior art keywords
plunger
solenoid valve
magnetostrictive
damper
magnetic force
Prior art date
Application number
KR1020150098669A
Other languages
Korean (ko)
Inventor
김정훈
Original Assignee
현대자동차주식회사
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 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020150098669A priority Critical patent/KR20170007044A/en
Publication of KR20170007044A publication Critical patent/KR20170007044A/en

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Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/346—Throttling passages in the form of slots arranged in cylinder walls
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/464—Control of valve bias or pre-stress, e.g. electromagnetically
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/466—Throttling control, i.e. regulation of flow passage geometry
    • F16F9/467—Throttling control, i.e. regulation of flow passage geometry using rotary valves
    • F16F9/468—Throttling control, i.e. regulation of flow passage geometry using rotary valves controlling at least one bypass to main flow path
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2238/00—Type of springs or dampers
    • F16F2238/04—Damper

Abstract

A damper solenoid valve is disclosed. A solenoid valve for a damper according to an embodiment of the present invention includes a valve body installed at one side of a fluid conduit and having an orifice corresponding to the fluid conduit formed therein, Wherein the plunger includes: an upper plunger supported by the plunger spring; and an upper plunger supported by the plunger spring. A lower plunger for directly opening and closing the orifice; And a magnetostrictive member interposed between the upper plunger and the lower plunger and mutually bonded to each other and deforming in a variable thickness in response to the magnetic force.

Description

SOLENOID VALVE FOR DAMPER}

The present invention relates to a solenoid valve for a damper, and more particularly, to a damper solenoid valve for increasing a reaction speed of a damper applied to a suspension of a vehicle.

Generally, the suspension of a vehicle relieves vibration and shock transmitted from the road surface, and stably controls the behavior of the vehicle body to provide driving stability and a comfortable ride.

In this suspension, a spring is essentially applied. The spring relaxes the impact in the garage direction by irregular road surface, rapid acceleration or rapid deceleration, and the damper (DAMPER) applied with the spring damps the elastic force of the spring, .

Since the damping force required by a vehicle differs depending on the operating conditions such as the input frequency and the input size, an electronically controlled variable damper capable of electronically controlling the size of the orifice has recently been developed and applied.

1 is a schematic configuration diagram of a general electronically controlled variable damper.

1, an electronically controlled variable damper 10 includes an inner housing 20, an outer housing 30, a piston valve 23, a piston rod 25, a base valve 21, and a solenoid A valve 50 and the like.

The inner housing 20 is generally cylindrical and has an inner chamber filled with a fluid therein. The outer housing 30 surrounds the outer periphery of the inner housing 20 and extends between the inner housing 20 and the inner housing 20. The outer chamber 40 is formed.

The piston valve 23 is integrally connected to the piston rod 25 and is configured in the inner chamber to divide the inner chamber into upper and lower inner chambers 27 and 29.

The base valve 21 is installed at a lower portion of the inner housing 20 to partition the inner chamber and the outer chamber 40.

The solenoid valve 50 is installed on the first bypass conduit 60 and the second bypass conduit 65 for directly connecting the inner housing 20 and the outer housing 30 at different positions .

The first bypass conduit 60 connects the upper inner chamber 27 and the outer chamber 40 and the second bypass conduit 65 connects the lower inner chamber 29 and the outer chamber 40, Lt; / RTI >

2 is a structural cross-sectional view of a conventional solenoid valve for a damper.

2, each of the solenoid valves 50 provided on the first and second bypass conduits 60 and 65 includes a valve body 51 and a valve body 51 And a solenoid 55.

The valve body 51 is installed on each of the bypass conduits 60 and 65 and has an orifice 52 formed on the flow path.

The solenoid 55 operates in the direction of the magnetic field by the electromagnetic force generated in the coil 57 to control the opening and closing of the orifice 52 And a plunger (59) supported by a plunger spring (58).

The solenoid valve 50 is provided on each of the bypass conduits 60 and 65 connecting the inner chamber and the outer chamber 40 to electronically open and close the flow path to change the damping force of the electronically controlled variable damper 10.

That is, the reaction speed of the electronically controlled variable damper 10 is determined by the reaction speed of the solenoid valve 50, and more precisely, the speed at which the plunger 59 moves upward to open the flow path and the current Is determined by the speed at which the plunger 59 moves downward by the plunger spring 58 to block the flow path.

Therefore, the reaction speed of the solenoid valve 50 becomes an important factor for increasing the reaction speed of the electronically controlled variable damper 10, and research on this has been continued.

The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.

An embodiment of the present invention is to provide a damper solenoid valve that increases the reaction speed for opening and closing a flow path by constructing a plunger using a magnetostrictive material.

In one or more embodiments of the present invention, a valve body is provided at one side of a fluid conduit and has an orifice corresponding to the fluid conduit formed therein. The valve body has magnetic force and an elastic force of a plunger spring And a solenoid for opening and closing the orifice by using a plunger operated by the solenoid valve, wherein the plunger includes: an upper plunger supported by the spring; A lower plunger for directly opening and closing the orifice; And a magnetostrictive member sandwiched between the upper plunger and the lower plunger and mutually adhered to each other and deforming in thickness in response to the magnetic force.

The magnetostrictive body is in a solid state, and the upper surface and the lower surface of the magnetostrictive body can be bonded or bonded to the lower surface of the upper plunger and the upper surface of the lower plunger, respectively.

Further, the magnetostrictive body may be deformed along the direction of the magnetic force lines of the coil.

The magnetostrictive body may be arranged to extend in the axial direction of the plunger by a magnetic force of the coil.

The magnetostrictive member may be formed in a circular rod shape having the same diameter as the upper and lower plungers.

In addition, the magnetostrictive material may be formed of a magnetostrictive material including Terfenol-D.

In the embodiment of the present invention, a certain section of the plunger is formed of a magnetostrictive member made of a magnetostrictive material, so that the operating speed of the plunger can be increased during operation of the solenoid, and an electronically controlled variable damper It has an effect of increasing the reaction rate.

In addition, the effects obtainable or predicted by the embodiments of the present invention will be directly or implicitly disclosed in the detailed description of the embodiments of the present invention. That is, various effects to be predicted according to the embodiment of the present invention will be disclosed in the detailed description to be described later.

1 is a schematic configuration diagram of a general electronically controlled variable damper.
2 is a structural cross-sectional view of a conventional solenoid valve for a damper.
3 is a structural cross-sectional view of a damper solenoid valve according to an embodiment of the present invention.
4 is an operational state diagram of a damper 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.

First, an electronically controlled variable damper 10 to which a damper solenoid valve 100 according to an embodiment of the present invention is applied will be briefly described with reference to FIG.

The electronically controlled variable damper 10 includes an internal housing 20, an external housing 30, a piston valve 23, a piston rod 25, a base valve 21, and a solenoid valve 100 .

The inner housing 20 is generally cylindrical and has an inner chamber filled with a fluid therein. The outer housing 30 surrounds the outer side of the inner housing 20, The outer chamber 40 is formed.

The piston valve 23 is integrally connected to the piston rod 25 and is configured in the inner chamber to divide the inner chamber into upper and lower inner chambers 27 and 29.

The base valve 21 is installed at a lower portion of the inner housing 20 to partition the inner chamber and the outer chamber 40.

The solenoid valve 100 is installed on the first bypass conduit 60 and the second bypass conduit 65 for directly connecting the inner housing 20 and the outer housing 40 at different positions.

The first bypass conduit 60 connects the upper inner chamber 27 and the outer chamber 40 and the second bypass conduit 65 connects the lower inner chamber 29 and the outer chamber 40, Lt; / RTI >

3 is a structural cross-sectional view of a damper solenoid valve according to an embodiment of the present invention.

Referring to FIG. 3, a solenoid valve 100 according to an embodiment of the present invention includes a valve body 200 and a solenoid 300.

The valve body 200 is screwed to the first or second bypass conduit 60 or 65 through a coupling hole 215 formed on both sides.

The valve body 200 has an orifice 221 and a discharge hole 222 formed therein and connected to each flow path of the first or second bypass conduit 60 or 65, A plunger hole 230 connected to the discharge hole 221 and the discharge hole 222 is formed.

The solenoid 300 includes a coil 340, a plunger spring 320, and a plunger 310 disposed inside the housing 305 and installed on the valve body 200.

At this time, a plunger operation chamber 330 is formed in the housing 305 at a position corresponding to the plunger hole 230 of the valve body 200.

The coil 340 is installed around the plunger operating chamber 330 inside the housing 305.

At this time, the coil 340 receives a current through the current input terminal 350 to generate a magnetic force.

The plunger spring 320 is supported at the inner surface of the plunger operation chamber 330 at one end and at the other end to the plunger 310 in the plunger operation chamber 330.

That is, the plunger spring 320 is installed inside the plunger operating chamber 330 to elastically support the plunger 310 in the operating direction.

The plunger 310 is installed in the plunger operation chamber 330 and includes an upper plunger 310a, a lower plunger 310b, and a magnetostrictive body 315.

That is, the plunger 310 is formed by forming a magnetostrictive body 315 between the upper plunger 310a and the lower plunger 310b, the magnetostrictive body 315 being formed of a magnetostrictive layer made of a magnetostrictive material.

At this time, the plunger 310 is supported by the plunger spring 320 through the upper plunger 310a and is arranged to open or close the orifice 221 through the lower plunger 310b.

The magnetostrictive body 315 is in a solid state and has the same outer shape as the upper plunger 310a and the lower plunger 310b so as to be adhered or bonded between the upper plunger 310a and the lower plunger 310b .

Here, the bonding may be performed using an adhesive or the like, and the bonding may be performed using welding or the like.

In this case, the method of bonding and bonding is not limited to this, and it is applicable to any method capable of connecting the upper and lower plungers 310a and 310b and the magnetostrictive body 315 in addition to the bonding method using an adhesive and welding. It is possible.

The magnetostrictive material 315 may be formed of a magnetostrictive material including Terfenol-D, but is not limited thereto. If the magnetostrictive material 315 has an effect similar to that of Tephenol-D, It is possible.

The lower end of the plunger 310 corresponds to the orifice 221 in a state in which the upper end of the plunger 310 is supported by the plunger spring 320 in the plunger operating chamber 330 .

Hereinafter, a method of operating the damper solenoid valve 100 configured as described above will be described with reference to FIG.

4 is an operational state diagram of a damper solenoid valve according to an embodiment of the present invention.

4, a damper solenoid valve 100 according to an embodiment of the present invention is configured such that the magnetostrictive body 315 applied to the plunger 310 reacts with the magnetic force generated from the coil 340 to vary its thickness .

The thickness T1 of the magnetostrictive body 315 is deformed along the direction of the magnetic force lines generated in the coil 340. [

4 (A), when a current is applied to the coil 340, the plunger 310 overcomes the elastic force of the plunger spring 320 while the thickness T1 of the magnetostrictive body 315 contracts, And moves into the interior of the chamber 330.

At this time, the plunger 310 opens the orifice 221 blocked by the lower plunger 310b, and the reaction speed is faster than the conventional one due to the moving speed by the magnetic force and the shrinkage deformation of the magnetostrictive body 315 .

4B, when the electric current applied to the coil 340 is cut off, the plunger 310 moves to a position where the plunger spring 320 (see FIG. 4B) To the plunger hole 230 side.

At this time, the plunger 310 closes the orifice 221 by closing the lower plunger 310b. In response to the movement speed of the plunger spring 320 due to the elastic force and the expansion deformation of the magnetostrictive body 315, It works faster and faster.

Therefore, the damper solenoid valve 100 according to the embodiment of the present invention can be constructed of the magnetostrictive body 315 made of a magnetostrictive material in a certain section of the plunger, thereby increasing the opening / closing operation speed of the channel by the plunger 310.

Accordingly, the electronically controlled variable damper 10 to which the solenoid valve 100 according to the embodiment of the present invention is applied can quickly respond to changes in damping force demanded by the vehicle.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

100 ... solenoid valve 200 ... valve body
215 ... fastening hole 221 ... orifice
222 ... discharge hole 230 ... plunger hole
300 ... solenoid 310 ... plunger
310a ... upper plunger 310b ... lower plunger
315 ... magnetostrictive body 320 ... plunger spring
330 ... plunger working chamber 340 ... coil
350 ... Current input terminal

Claims (11)

A valve body provided at one side of the fluid conduit and having an orifice corresponding to the fluid conduit formed therein, and a plunger operated by a magnetic force and an elastic force of the plunger spring in the housing installed in the valve body, A solenoid valve for a vehicle damper including a solenoid for opening and closing the solenoid valve,
The plunger
An upper plunger supported by the plunger spring;
A lower plunger for directly opening and closing the orifice; And
A magnetostrictive member interposed between the upper plunger and the lower plunger and mutually adhered, the magnetostrictive member varying in thickness in response to the magnetic force;
Solenoid valve for damper. The method according to claim 1,
The magnetostrictive body
And the upper surface and the lower surface of the solenoid valve are bonded or bonded to the lower surface of the upper plunger and the upper surface of the lower plunger, respectively. The method according to claim 1,
The magnetostrictive body
A solenoid valve for a damper that deforms along a direction of a magnetic force line of a coil. The method of claim 3,
The magnetostrictive body
And is arranged to extend in the axial direction of the plunger by a magnetic force of the coil. The method according to any one of claims 1 to 4,
The magnetostrictive body
Wherein the upper and lower plungers are formed in a circular rod shape having the same diameter as the upper and lower plungers. The method according to any one of claims 1 to 4,
The magnetostrictive body
A solenoid valve for a damper formed of a magnetostrictive material comprising Terfenol-D. A valve body provided at one side of the fluid conduit and having an orifice corresponding to the fluid conduit formed therein, and a plunger operated by a magnetic force and an elastic force of the plunger spring in the housing installed in the valve body, A solenoid valve including a solenoid for opening and closing a solenoid valve,
The plunger
A damper solenoid which is formed in the shape of a circular rod and whose upper end is supported by the plunger spring and whose lower end is arranged to correspond to the orifice so as to open and close the orifice, valve. 8. The method of claim 7,
The magnetostrictive material
Wherein the upper and lower surfaces of the solenoid valve are bonded or bonded to the lower surface of the upper plunger and the upper surface of the lower plunger, respectively. 8. The method of claim 7,
The magnetostrictive material
Wherein a thickness of the solenoid valve is varied in response to a magnetic force of the coil and is deformed along a direction of a magnetic force line of the coil. 10. The method of claim 9,
The magnetostrictive layer
And is arranged to extend in the axial direction of the plunger by a magnetic force of the coil. 11. The method according to any one of claims 7 to 10,
The magnetostrictive material
A solenoid valve for a damper formed of a magnetostrictive material comprising Terfenol-D.
KR1020150098669A 2015-07-10 2015-07-10 Solenoid valve for damper KR20170007044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150098669A KR20170007044A (en) 2015-07-10 2015-07-10 Solenoid valve for damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150098669A KR20170007044A (en) 2015-07-10 2015-07-10 Solenoid valve for damper

Publications (1)

Publication Number Publication Date
KR20170007044A true KR20170007044A (en) 2017-01-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150098669A KR20170007044A (en) 2015-07-10 2015-07-10 Solenoid valve for damper

Country Status (1)

Country Link
KR (1) KR20170007044A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220163088A1 (en) * 2020-11-26 2022-05-26 Bombardier Recreational Products Inc. Shock absorber for a vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220163088A1 (en) * 2020-11-26 2022-05-26 Bombardier Recreational Products Inc. Shock absorber for a vehicle
US11946526B2 (en) * 2020-11-26 2024-04-02 Bombardier Recreational Products Inc. Shock absorber for a vehicle

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