KR102007346B1 - Transverse pressure reducing apparatus of electric controlling damper with solenoid valve assembly - Google Patents

Transverse pressure reducing apparatus of electric controlling damper with solenoid valve assembly Download PDF

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Publication number
KR102007346B1
KR102007346B1 KR1020140193556A KR20140193556A KR102007346B1 KR 102007346 B1 KR102007346 B1 KR 102007346B1 KR 1020140193556 A KR1020140193556 A KR 1020140193556A KR 20140193556 A KR20140193556 A KR 20140193556A KR 102007346 B1 KR102007346 B1 KR 102007346B1
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KR
South Korea
Prior art keywords
tube
solenoid valve
valve assembly
circumferential surface
fastening
Prior art date
Application number
KR1020140193556A
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Korean (ko)
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KR20160080721A (en
Inventor
김은중
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주식회사 만도
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Priority to KR1020140193556A priority Critical patent/KR102007346B1/en
Publication of KR20160080721A publication Critical patent/KR20160080721A/en
Application granted granted Critical
Publication of KR102007346B1 publication Critical patent/KR102007346B1/en

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    • 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
    • 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
    • F16F9/3405—Throttling passages in or on piston body, e.g. slots
    • 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

Abstract

The present invention includes a first tube provided at an end of a piston rod reciprocating according to a compression and tension stroke to accommodate a piston valve for partitioning an internal space into an upper and a lower chamber, and an inner peripheral surface facing an outer peripheral surface of the first tube. A tube assembly including a second tube containing the first tube and an inner circumferential surface facing an outer circumferential surface of the second tube, and a third tube containing the second tube; A solenoid valve assembly having a valve port fixedly connected to the first port hole of the second tube through the third tube and implementing damping performance during a tension stroke; A guide fixed to the second port hole of the third tube to receive the solenoid valve assembly; And a protection unit formed in the guide to offset the lateral pressure applied to the tube assembly through the guide during the compression stroke, to offset the lateral pressure applied to the tension-side solenoid valve during the compression stroke. The present invention relates to a device for reducing the lateral pressure of an electronically controlled damper equipped with a solenoid valve assembly for improving durability and service life.

Description

TRANSVERSE PRESSURE REDUCING APPARATUS OF ELECTRIC CONTROLLING DAMPER WITH SOLENOID VALVE ASSEMBLY}

The present invention relates to a device for reducing the lateral pressure of an electronically controlled damper equipped with a solenoid valve assembly, and more particularly, to offset the lateral pressure applied to the tension-side solenoid valve during a compression stroke so as to improve durability and service life of the entire device. A device for reducing the lateral pressure of an electronically controlled damper having a solenoid valve assembly.

In general, the shock absorber serves to support the weight of the vehicle and at the same time to suppress and attenuate the vibration transmitted from the road surface to the vehicle body, thereby improving ride comfort, protecting cargo and protecting each part of the vehicle.

The shock absorber is a structure in which a piston valve at a piston rod end reciprocating inside a cylinder realizes damping performance during compression and tension stroke, and is equipped with a solenoid valve assembly for more degradive and detailed damping performance. Done.

The solenoid valve assembly 20 is connected to the first port hole 12h of the second tube 12 in a cylinder including the first tube 11, the second tube 12, and the third tube 13 as shown in FIG. 6. The valve port 21 is fixed, and the guide 30 is fixed to the second port hole 13h of the third tube 13 to protect the solenoid valve assembly 20 from external shock.

Here, during the compression stroke, a lateral force (see a pair of transparent arrows) is generated in the first and second tubes 11 and 12, and the working fluid flows in the compression stroke to the inner surface 32 of the guide 30. The lateral load is transmitted to the first and second tubes 11 and 12 as it is, causing various problems such as cracking on the surface or deterioration of the performance of the airtight member such as the O-ring.

Patent Registration No. 10-1239914 European Patent EP000001245854

The present invention has been invented to solve the above problems, and the electronically controlled damper is provided with a solenoid valve assembly to offset the lateral pressure applied to the tension-side solenoid valve during the compression stroke to improve the durability and service life of the whole device It is to provide a device for reducing the lateral pressure.

In order to achieve the above object, the present invention is provided at the end of the piston rod reciprocating in accordance with the compression and tension stroke to accommodate a piston valve for partitioning the inner space into the upper and lower chambers, and the first tube A tube assembly having an inner circumferential surface facing an outer circumferential surface of the tube and having a second tube containing the first tube and an inner circumferential surface facing the outer circumferential surface of the second tube and a third tube containing the second tube. ; A solenoid valve assembly having a valve port fixedly connected to the first port hole of the second tube through the third tube and implementing damping performance during a tension stroke; A guide fixed to the second port hole of the third tube to receive the solenoid valve assembly; And a protection unit formed in the guide to offset the lateral pressure applied to the tube assembly through the guide during the compression stroke. The apparatus for reducing the lateral pressure of the electronically controlled damper having the solenoid valve assembly may be provided. have.

Here, the guide may include a fixed sleeve fixed to the second port hole of the third tube, an inclined enlarged portion extending in diameter gradually from the fixed sleeve, and a solenoid extending from the inclined enlarged portion to a constant diameter. And a receiving part in which a part of the valve assembly is received, wherein the protection unit is formed in the receiving part.

In this case, the protection unit, protruding along the outer circumferential surface of the accommodating portion and orthogonal to the accommodating portion, and the stepped portion on which the protective flange is seated is formed stepped along the inner peripheral surface of one end, the outer peripheral surface of the third tube And a protective housing mounted on an outer cylinder for facing the third tube, wherein the area in which the protective flange and the stepped portion abut cancel the lateral pressure applied through the third tube.

In addition, an area of the protective flange protruding from the outer circumferential surface of the accommodation portion with a constant width may be equal to the area of one surface of the stepped portion.

The protection unit may include a first thread formed along an outer circumferential surface of the accommodating part and a second thread corresponding to the first thread formed along an inner circumferential surface of one end thereof to accommodate the remaining portion of the solenoid valve assembly. Characterized in that it comprises a.

The protection unit may include fastening ribs formed at equal intervals along the outer circumferential surface of the accommodation portion, and fastening portions corresponding to the fastening ribs are formed at equal intervals along the edge of the inner circumferential surface of one end thereof, and the solenoid valve And a casing for receiving the rest of the assembly.

The fastening part may include a plurality of insertion guide grooves recessed in a straight line from the edge of the inner peripheral surface of one end of the casing toward the other end of the casing;

It extends in one direction from each end of the insertion guide groove recessed, and includes a fastening fixing groove disposed to be orthogonal to the insertion guide groove,

The casing is fixed to the receiving portion by rotating the casing in one direction so that the fastening rib is positioned at the end of the fastening fixing groove by aligning the insertion guide groove with the fastening rib to the end of the fastening guide groove. It features.

In addition, the length of the fastening rib is less than or equal to the width of the insertion guide groove, the width of the fastening rib is characterized in that less than or equal to the width of the fastening fixing groove.

According to the present invention having the above configuration, the protection unit formed in the guide fixed to the second port hole of the third tube to receive the solenoid valve assembly cancels the lateral pressure applied to the tube assembly through the guide during the compression stroke, It is possible to improve the durability and the service life.

1 is a cross-sectional conceptual view showing the overall configuration of a device for reducing the lateral pressure of an electronically controlled damper equipped with a solenoid valve assembly according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing the coupling relationship of the protection unit, which is the main part of the lateral pressure reduction device of the electronically controlled damper with a solenoid valve assembly according to an embodiment of the present invention
3 is a cross-sectional conceptual view showing the overall configuration of a device for reducing the lateral pressure of an electronically controlled damper equipped with a solenoid valve assembly according to another embodiment of the present invention.
Figure 4 is a cross-sectional conceptual view showing the overall configuration of the device for reducing the lateral pressure of the electronically controlled damper equipped with a solenoid valve assembly according to another embodiment of the present invention
5 is an exploded perspective view showing a coupling relationship of a protection unit which is a main part of a lateral pressure reducing device of an electronically controlled damper equipped with a solenoid valve assembly according to another embodiment of the present invention.
6 is a cross-sectional conceptual view showing the overall configuration of an electronically controlled damper equipped with a conventional solenoid valve assembly.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms.

In this specification, the embodiments are provided so that the disclosure of the present invention may be completed and the scope of the present invention may be completely provided to those skilled in the art.

And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations and well known techniques are not described in detail in order to avoid obscuring the present invention.

In addition, the same reference numerals throughout the specification refer to the same components, and the terminology (discussed) used herein is for the purpose of describing the embodiments are not intended to limit the invention.

As used herein, the singular forms "a", "an" and "the" include plural unless the context clearly dictates otherwise, and the elements and acts referred to as 'comprises' or 'do' not exclude the presence or addition of one or more other components and acts. .

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art.

In addition, the terms defined in the commonly used dictionary are not ideally or excessively interpreted unless they are defined.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a cross-sectional conceptual view showing the overall configuration of the device for reducing the lateral pressure of the electronically controlled damper with a solenoid valve assembly according to an embodiment of the present invention, Figure 2 is a solenoid valve assembly according to an embodiment of the present invention It is an exploded perspective view which shows the coupling relationship of the protection unit which is a principal part of the horizontal pressure reduction apparatus of an electronically controlled damper.

As shown, it can be seen that the structure includes a tube assembly 100, a solenoid valve assembly 200, a guide 300, and a protection unit 500.

The tube assembly 100 includes a first tube 110 provided at an end of the piston rod 400 reciprocating according to the compression and tension stroke to accommodate the piston valve 410 for partitioning the internal space into the upper and lower chambers, A second tube having an inner circumferential surface facing the outer circumferential surface of the first tube 110 and having a second tube 120 receiving the first tube 110 and an inner circumferential surface facing the outer circumferential surface of the second tube 120 and having a second tube. It includes a third tube 130 is accommodated 120.

The solenoid valve assembly 200 is the valve port 201 is fixedly connected to the first port hole 121 of the second tube 120 through the third tube 130, to implement a damping performance during the tension stroke.

The guide 300 is fixed to the second port hole 132 of the third tube 130 to receive the solenoid valve assembly 200.

The protection unit 500 is formed in the guide 300 to offset the lateral pressure applied to the tube assembly 100 through the guide 300 during the compression stroke.

Accordingly, the present invention allows the protection unit 500 to cancel the lateral pressure applied to the tube assembly 100 through the guide 300 during the compression stroke, thereby improving the durability and the service life of the entire apparatus.

The present invention can be applied to the above embodiments, and of course, the following various embodiments are also applicable.

The guide 300 has a fixed sleeve 310 fixed to the second port hole 132 of the third tube 130 as shown in FIGS. 1 and 2, and an inclined extension extending gradually wider from the fixed sleeve 310. It can be understood that the structure includes a neck portion 320 and a receiving portion 330 extending from the inclined diameter portion 320 to a predetermined diameter to accommodate a portion of the solenoid valve assembly 200.

Here, the protection unit 500 is formed in the receiving portion 330.

At this time, the arc unit 500 is projected along the outer circumferential surface of the receiving portion 330 as shown, the protection flange 510 perpendicular to the receiving portion 330, and the stepped portion (3) on which the protective flange 510 is seated ( 521 is formed to be stepped along an inner circumferential surface of one end, and includes a protective housing 520 facing the outer circumferential surface of the third tube 130 and mounted to an outer cylinder 140 that accommodates the third tube 130. I can see that.

Therefore, the area where the protective flange 510 and the stepped portion 521 contact each other cancels the lateral pressure applied through the third tube 130.

In addition, the area of the protective flange 510 having a constant width and protruding from the outer circumferential surface of the receiving portion 330 is preferably equal to the area of one surface of the stepped portion 521 in order to increase the effect of the lateral pressure cancellation.

Meanwhile, as shown in FIG. 3, the protection unit 500 includes a first screw thread 530 formed along the outer circumferential surface of the accommodating part 330, and a second screw thread 542 corresponding to the first screw thread 530. Embodiments of a structure formed along the side and including a casing 540 for receiving the remaining portion of the solenoid valve assembly 200 may be applied.

4 and 5, the protection unit 500 includes fastening ribs 550 formed at equal intervals along the outer circumferential surface of the accommodating part 330, and fastening portions corresponding to the fastening ribs 550 ( 560 is formed at equal intervals along the edge of one end inner circumferential surface, an embodiment of the structure including a casing 540 for receiving the remaining portion of the solenoid valve assembly 200 may be applied.

Here, the fastening part 560 includes a plurality of insertion guide grooves 561 and an insertion guide groove 561 which are linearly recessed from the edge of the inner peripheral surface of one end of the casing 540 toward the other end side of the casing 540. It can be seen that the structure includes a fastening fixing groove 562 which extends in one direction from each end and is recessed and is arranged to be orthogonal to the insertion guide groove 561.

At this time, the casing 540 aligns the insertion guide groove 561 with the fastening rib 550 to the end of the insertion guide groove 561, and then the fastening rib 550 is positioned at the end of the fastening fixing groove 562. The casing 540 is rotated in one direction so as to be fixed to the accommodation part 330.

In addition, the length of the fastening rib 550 is less than or equal to the width of the insertion guide groove 561 for smooth insertion fastening with the fastening portion 560, the width of the fastening rib 550 is fastening fixing groove 562. Less than or equal to the width of is preferred.

As described above, the present invention basically provides a device for reducing the lateral pressure of an electronically controlled damper equipped with a solenoid valve assembly that can offset the lateral pressure applied to the tension-side solenoid valve during the compression stroke to improve the durability and the service life of the entire device. It can be seen that the technical idea.

In addition, many modifications and applications are possible to those skilled in the art within the scope of the basic technical idea of the present invention.

100 ... tube assembly
110 ... First tube
120 ... second tube
121.1st port hole
130 ... 3rd tube
132 ... 2nd port hole
140.Outer cylinder
200 ... Solenoid Valve Assembly
201 ... Valve port
300 ... Guide
310 ... fixed sleeve
320.Inclined enlarged part
330 ...
400 ... piston rod
410 ... piston valve
500 ... protection unit
510 ... protective flange
520 ... protective housing
521 ... step
530 ... first thread
540 ... casing
542 ... Second Thread
550 ... tightening rib
560 ... fastening
561 ... Inserting guide groove
562 ... Fastening fixing groove

Claims (8)

A first tube provided at an end of the piston rod reciprocating according to the compression and tension stroke to accommodate a piston valve for partitioning an internal space into an upper and a lower chamber, and an inner circumferential surface facing an outer circumferential surface of the first tube. A tube assembly including a second tube containing a first tube and an inner circumferential surface facing an outer circumferential surface of the second tube and a third tube containing the second tube;
An outer cylinder facing the outer circumferential surface of the third tube and containing the third tube;
A solenoid valve assembly having a valve port fixedly connected to the first port hole of the second tube through the third tube and implementing damping performance during a tension stroke;
A guide fixed to the second port hole of the third tube to receive the solenoid valve assembly; And
And a protection unit formed in the guide to offset the lateral pressure applied to the tube assembly through the guide during the compression stroke.
The guide may include a fixed sleeve fixed to the second port hole of the third tube, an inclined enlarged portion extending gradually from the fixed sleeve to a wider diameter, and extending from the inclined enlarged portion to a constant diameter to provide the solenoid valve assembly. It includes a receiving portion that is accommodated,
The protection unit is formed in the receiving portion, the horizontal pressure reduction device of the electronically controlled damper with a solenoid valve assembly, characterized in that supported by the outer cylinder when the transverse pressure action on the tube assembly. delete The method according to claim 1,
The protection unit,
A protruding flange protruding along an outer circumferential surface of the accommodating part to be perpendicular to the accommodating part;
The stepped portion on which the protective flange is seated is formed stepped along an inner circumferential surface of one end, and includes a protective housing facing the outer circumferential surface of the third tube and mounted to the outer cylinder.
And an area where the protective flange and the stepped portion abut the horizontal pressure applied to the third tube cancels the horizontal pressure reducing device of the electronically controlled damper equipped with the solenoid valve assembly.
The method according to claim 3,
The area of the protection flange protruding from the outer peripheral surface of the receiving portion having a predetermined width is equal to the area of one side of the stepped portion, the lateral pressure reduction device of the electronically controlled damper equipped with a solenoid valve assembly.
The method according to claim 1,
The protection unit,
A first screw thread formed along an outer circumferential surface of the accommodation portion;
A second screw thread corresponding to the first screw thread is formed along an inner circumferential surface of one end thereof, and includes a casing for accommodating the remaining portion of the solenoid valve assembly. .
The method according to claim 1,
The protection unit,
Fastening ribs spaced at equal intervals along the outer circumferential surface of the accommodation portion;
Electronic control dampers provided with a solenoid valve assembly, characterized in that the fastening portion corresponding to the fastening ribs are formed at equal intervals along the edge of the inner peripheral surface of the one end portion and includes a casing for accommodating the remaining portion of the solenoid valve assembly. Lateral pressure reduction device.
The method according to claim 6,
The fastening portion,
A plurality of insertion guide grooves recessed linearly from the edge of the inner peripheral surface of one end of the casing toward the other end side of the casing;
It extends in one direction from each end of the insertion guide groove recessed, and includes a fastening fixing groove disposed to be orthogonal to the insertion guide groove,
The casing is fixed to the receiving portion by rotating the casing in one direction so that the fastening rib is positioned at the end of the fastening fixing groove by aligning the insertion guide groove with the fastening rib to the end of the fastening guide groove. A device for reducing the lateral pressure of an electronically controlled damper having a solenoid valve assembly.
The method according to claim 7,
The length of the fastening rib is less than or equal to the width of the insertion guide groove, the width of the fastening rib is less than or equal to the width of the fastening fixing groove, the lateral pressure of the electronically controlled damper with a solenoid valve assembly Abatement device.
KR1020140193556A 2014-12-30 2014-12-30 Transverse pressure reducing apparatus of electric controlling damper with solenoid valve assembly KR102007346B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140193556A KR102007346B1 (en) 2014-12-30 2014-12-30 Transverse pressure reducing apparatus of electric controlling damper with solenoid valve assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140193556A KR102007346B1 (en) 2014-12-30 2014-12-30 Transverse pressure reducing apparatus of electric controlling damper with solenoid valve assembly

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KR20160080721A KR20160080721A (en) 2016-07-08
KR102007346B1 true KR102007346B1 (en) 2019-08-06

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010025186A (en) * 2008-07-17 2010-02-04 Kayaba Ind Co Ltd Damping valve
KR101239912B1 (en) * 2011-01-10 2013-03-06 주식회사 만도 Damping force variable valve for shock absorber

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11230399A (en) * 1998-02-19 1999-08-27 Asmo Co Ltd Actuator and manufacture for it
US6422360B1 (en) 2001-03-28 2002-07-23 Delphi Technologies, Inc. Dual mode suspension damper controlled by magnetostrictive element
JP5308695B2 (en) * 2008-03-17 2013-10-09 カヤバ工業株式会社 Damping valve
KR101239914B1 (en) 2011-01-18 2013-03-06 주식회사 만도 Steering sensitive valve structure of a shock absorber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010025186A (en) * 2008-07-17 2010-02-04 Kayaba Ind Co Ltd Damping valve
KR101239912B1 (en) * 2011-01-10 2013-03-06 주식회사 만도 Damping force variable valve for shock absorber

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