KR19990057494A - Shock absorber - Google Patents

Shock absorber Download PDF

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Publication number
KR19990057494A
KR19990057494A KR1019970077547A KR19970077547A KR19990057494A KR 19990057494 A KR19990057494 A KR 19990057494A KR 1019970077547 A KR1019970077547 A KR 1019970077547A KR 19970077547 A KR19970077547 A KR 19970077547A KR 19990057494 A KR19990057494 A KR 19990057494A
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KR
South Korea
Prior art keywords
cylinder
out cylinder
voltage
duct
vehicle
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KR1019970077547A
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Korean (ko)
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KR100392345B1 (en
Inventor
조길준
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오상수
만도기계 주식회사
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Priority to KR1019970077547A priority Critical patent/KR100392345B1/en
Publication of KR19990057494A publication Critical patent/KR19990057494A/en
Application granted granted Critical
Publication of KR100392345B1 publication Critical patent/KR100392345B1/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
    • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/532—Electrorheological [ER] fluid dampers
    • 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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/062—Bi-tubular units
    • 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
    • F16F9/54—Arrangements for attachment
    • 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
    • F16F2224/00—Materials; Material properties
    • F16F2224/04—Fluids
    • F16F2224/043—Fluids electrorheological

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

본 발명은 차량용 쇽업소버에 관한 것으로, 특히 실차 적용시 예상되는 안정성 및 장착성을 개선하고, 제작비용 절감할 수 있도록 개량한 것이다.The present invention relates to a shock absorber for vehicles, and in particular, to improve the stability and mounting performance expected in the application of the actual vehicle, and improved to reduce the manufacturing cost.

본 발명은 ER덕트(1)의 인너실린더(2)를 2중구조로 되는 제1,2인너실린더(2a,2b)를 형성하고, 상기 인너실린더(2)와 아웃실린더(3) 사이의 공간에는 ER유체와 함께 질소가스(N2gas)가 함께 봉입되며, 아웃실린더(3)의 외주면에는 스프링 시트(30)를 설치하여 상기 스프링시트(30)에 실차 장착시 차량을 지지하도록 된 스프링을 고정하도록 하고, 각각의 제1,2인너실린더(2a,2b)에는 "+"전압을, 아웃실린더(3)에는 "-"전압이 연결되며, 아웃실린더(3)와 피스톤(7)을 통전되게 하여 실질적으로 제1인너실린더(2a)는 아웃실린더(3)에 연결되는 "-"전압이 걸리도록 구성한 것임.The present invention forms the first and second inner cylinders (2a, 2b) having a double structure of the inner cylinder (2) of the ER duct (1), the space between the inner cylinder (2) and the out cylinder (3) Nitrogen gas (N 2 gas) is enclosed together with the ER fluid, and a spring seat 30 is installed on the outer circumferential surface of the out cylinder 3 to fix the spring to support the vehicle when the vehicle is mounted on the spring seat 30. Each of the first and second inner cylinders 2a and 2b is connected with a "+" voltage, and an out cylinder 3 is connected with a "-" voltage, so that the out cylinder 3 and the piston 7 are energized. Therefore, substantially the first inner cylinder (2a) is configured to apply a "-" voltage connected to the out cylinder (3).

Description

쇽업소버Shock absorber

본 발명은 차량용 쇽업소버에 관한 것으로, 더욱 상세하게는 실차 적용시 예상되는 안정성 및 장착성을 개선하고, 제작비용 절감할 수 있도록 개량한 것이다.The present invention relates to a shock absorber for a vehicle, and more particularly, to improve the stability and mounting performance expected when applying a real vehicle, and to improve the manufacturing cost.

도 1에 나타낸 바와 같이 종래에는 ER덕트(1)가 인너실린더(2)(In cylinder)와 아웃실린더(3)(Out cylinder) 사이에 형성되고, ER유체의 유동특성을 개선하기 위하여 아웃실린더(3)의 별도의 액츄에이터(4)가 부설되고, 인너실린더(2)에는 "-" 전압을 아웃실린더(3)에 "-"전압을 연결하여 되는 구성으로 되고 있다.As shown in FIG. 1, an ER duct 1 is conventionally formed between an inner cylinder 2 (In cylinder) and an out cylinder 3 (Out cylinder), and an out cylinder (3) is used to improve the flow characteristics of the ER fluid. An additional actuator 4 of 3) is provided, and the inner cylinder 2 is configured to connect a "-" voltage to the out cylinder 3 to a "-" voltage.

이러한 구성으로 된 종래의 쇽업소버는 리바운드 행정시 ER유체는 인너실린더(2)의 상부측에 형성된 오리피스(21)를 통해 인너실린더(2)와 아웃실린더(3) 사이에 있는 ER덕트(1)로 흐르고, ER덕트(1)를 통과하는 동안에 인가된 전압의 크기에 따라 감쇠력을 발생하게 된다.In the conventional shock absorber having such a configuration, the ER duct (1) is located between the inner cylinder (2) and the out cylinder (3) through an orifice (21) formed at the upper side of the inner cylinder (2) during the rebound stroke. The damping force is generated in accordance with the magnitude of the applied voltage during the passage through the ER duct (1).

이때 ER덕트(1)를 통과한 유체는 인너실린더(2) 하부에 형성되는 오리피스(23)를 통해 콤프레션 챔버(5)로 유입되게 된다.At this time, the fluid passing through the ER duct 1 is introduced into the compression chamber 5 through the orifice 23 formed in the lower inner cylinder (2).

또한, 컴프레션 행정시 ER유체는 인너실린더(2)의 하부측 오리피스(23)를 통해 ER덕트(1)와 인너실린더(2)의 상부 오리피스(21)를 통하여 리바운드 챔버(6)로 유입됨과 동시에 피스톤(7)의 체크밸브를 밀어 올리면서 콤프레션 챔버(5)에서 리바운드 챔버(6)으로 흐르게 된다.In addition, during the compression stroke, the ER fluid flows into the rebound chamber 6 through the lower orifice 23 of the inner cylinder 2 through the ER duct 1 and the upper orifice 21 of the inner cylinder 2. The check valve of the piston 7 is pushed up to flow from the compression chamber 5 to the rebound chamber 6.

이처럼 종래에는 감쇠력이 ER유체가 ER덕트(1)를 통과할 때 발생하게 되는데 ER덕트(1)를 구성하고 있는 아웃실린더(3)에 액츄에이터(4)가 부설되고 있어 실차 장착시 외부조건에 의해서 변형되는 등의 문제점이 있다.As described above, the damping force is generated when the ER fluid passes through the ER duct (1). The actuator (4) is attached to the out cylinder (3) constituting the ER duct (1). There is a problem such as deformation.

또한, 아웃실린더(3)에 부설되는 액츄에이터(4)는 가공비가 많이 소요될 뿐만 아니라, 실차에 장착시 간섭의 문제가 발생할 염려가 있다.In addition, the actuator 4 installed in the out cylinder 3 not only requires a high processing cost, but also may cause interference problems when mounted on an actual vehicle.

따라서 본 발명은 상기한 바와 같은 종래의 문제점을 해소하기 위해, ER덕트의 변형을 최대한 예방하고, 별도의 액츄에이터를 이용하는데 따른 가공비용을 줄임과 아울러, 실차 장착시 실차와의 간섭을 일으키는 것을 방지할 수 있도록 된 쇽업소버를 제공함에 그 목적이 있는 것인바, 이를 첨부된 예시 도면을 참조하여 그 구성 및 작용 효과 등을 보다 구체적으로 설명하면 다음과 같다.Therefore, in order to solve the above-mentioned problems, the present invention prevents deformation of the ER duct as much as possible, reduces processing costs by using a separate actuator, and prevents interference with the actual vehicle when the vehicle is mounted. The purpose is to provide a shock absorber that can be made, with reference to the accompanying drawings illustrating the configuration and operation effects and the like in more detail as follows.

도 1은 종래 쇽업소버의 예시도.1 is an illustration of a conventional shock absorber.

도 2는 본 발명이 적용된 쇽업소버의 예시도,Figure 2 is an illustration of a shock absorber to which the present invention is applied,

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : ER덕트2 : 2a,2b : 인너실린더1: ER duct 2: 2a, 2b: inner cylinder

3 : 아웃실린더4 : 액츄에이터3: Out cylinder 4: Actuator

5 : 콤프레션 챔버6 : 리바운드 챔버5: compression chamber 6: rebound chamber

7 : 피스톤21,23 : 오리피스7: piston 21, 23: orifice

도 2에 나타낸 바와 같이 본 발명은, ER덕트(1)의 인너실린더(2)를 2중구조로 되는 제1,2인너실린더(2a,2b)를 형성하고, 상기 인너실린더(2)와 아웃실린더(3) 사이의 공간에는 ER유체와 함께 질소가스(N2gas)가 함께 봉입되며, 아웃실린더(3)의 외주면에는 스프링시트(30)를 설치하여 상기 스프링시트(30)에 실차 장착시 차량을 지지하도록 된 스프링을 고정하도록 되고, 각각의 제1,2인너실린더(2a,2b)에는 "+" 전압을, 아웃실린더(3)에는 "-" 전압이 연결되며, 아웃실린더(3)와 피스톤(7)을 통전되게 하여 실질적으로 제1인너실린더(2a)는 아웃실린더(3)에 연결되는 "-" 전압이 걸리는 구성으로 되고 있다.As shown in Fig. 2, the present invention forms the first and second inner cylinders 2a and 2b in which the inner cylinder 2 of the ER duct 1 has a double structure, and the inner cylinder 2 and the out cylinder are formed. Nitrogen gas (N 2 gas) is enclosed together with the ER fluid in the space between (3), and a spring seat (30) is installed on the outer circumferential surface of the out cylinder (3) to install the vehicle on the spring seat (30). It is fixed to the spring to support the, the first and second inner cylinders (2a, 2b) is connected to the "+" voltage, the out cylinder (3) is connected to the "-" voltage, and the out cylinder (3) The piston 7 is energized so that the first inner cylinder 2a is substantially configured to receive a "-" voltage connected to the out cylinder 3.

이와 같이 구성된 본 발명의 쇽업소버에 대한 작동 관계를 설명하면 다음과 같다.Referring to the operation relationship for the shock absorber of the present invention configured as described above are as follows.

먼저, 리바운드 행정시 ER유체는 리바운드 챔버(6)에서 제1인너실린더(2a)의 상부에 형성된 오리피스(21)를 통해 ER덕트(1)로 유입된 후, 다시 제1인너실린더(2a)의 하부측에 있는 오리피스(23)를 통해 콤프레션 챔버(5)로 흐르며 감쇠력을 발생시킨다.First, in the rebound stroke, the ER fluid flows into the ER duct 1 through the orifice 21 formed in the upper portion of the first inner cylinder 2a in the rebound chamber 6, and then again of the first inner cylinder 2a. It flows through the orifice 23 on the lower side to the compression chamber 5 and generates a damping force.

반대로 콤프레션 행정시에는 제1인너실린더(2a)의 하부에 있는 오리피스(23)를 통해 ER덕트(1)로 유입된 후, 제1인너실린더(1)의 상부에 있는 오리피스(21)를 통해 리바운드 챔버(6)로 흐른다.On the contrary, in the compression stroke, the ER duct 1 is introduced into the ER duct 1 through the orifice 23 in the lower portion of the first inner cylinder 2a, and then through the orifice 21 in the upper portion of the first inner cylinder 1. Flow into the rebound chamber (6).

이때, ER덕트(1)의 가스실에는 ER유체와 함께 봉입된 질소가스(N2gas)의 압력에 의하여 ER유체를 밀어주기 때문에 ER유체의 작용을 원활하게 이루어질 수 있게 된다.At this time, since the ER fluid is pushed into the gas chamber of the ER duct 1 by the pressure of nitrogen gas (N 2 gas) enclosed with the ER fluid, the ER fluid can be smoothly operated.

이처럼 본 발명은 아웃실린더(3)에 스프링시트(30)를 설치하여 외부로 부터의 충격 및 스프링시트에 걸리는 하중에 의해서 발생하는 아웃실린더(3)가 변형되는 것을 방지하므로써 ER덕트가 안정되게 되고, 종래와 같은 액츄에이터를 이용하지 않음으로써 실차 장착시 예상되는 간섭을 회피할 수 있어 장착성이 크게 개선되어질 수 있게 된다.As described above, the present invention provides the spring seat 30 to the out cylinder 3, thereby preventing the out cylinder 3 from being deformed due to the impact from the outside and the load applied to the spring seat, thereby making the ER duct stable. By not using the conventional actuator, it is possible to avoid the interference expected when the vehicle is mounted, so that the mountability can be greatly improved.

이상에서와 같이 본 발명에 의하면, 외부로부터의 충격 및 스프링시트에 걸리는 하중에 의해서 발생하는 아웃실린더의 변형을 방지할 수 있어 ER덕트의 안정적인 성능 확보가 가능하고, 또한, 액츄에이터를 이용하지 않음으로써 액츄에이터 제거로 인한 제작비용을 줄일 수 있는 것이며, 실차 장착시 예상될 수 있는 간섭을 회피할 수 있어 장착 성능이 크게 개선되어지는 등의 효과가 있다.As described above, according to the present invention, it is possible to prevent the deformation of the out cylinder caused by the impact from the outside and the load applied to the spring seat, to ensure the stable performance of the ER duct, and also by not using the actuator It is possible to reduce the manufacturing cost due to the removal of the actuator, it is possible to avoid the interference that can be expected when mounting the vehicle has the effect of greatly improving the mounting performance.

Claims (1)

ER덕트(1)의 인너실린더(2)를 2중구조로 되는 제1,2인너실린더(2a,2b)를 형성하고, 상기 인너실린더(2)와 아웃실린더(3) 사이의 공간에는 ER유체와 함께 질소가스(N2gas)가 함께 봉입되며, 아웃실린더(3)의 외주면에는 스프링 시트(30)를 설치하여 상기 스프링시트(30)에 실차 장착시 차량을 지지하도록 된 스프링을 고정하도록 되고, 각각의 제1,2인너실린더(2a,2b)에는 "+"전압을, 아웃실린더(3)에는 "-"전압이 연결되며, 아웃실린더(3)와 피스톤(7)을 통전되게 하여 실질적으로 제1인너실린더(2a)는 아웃실린더(3)에 연결되는 "-"전압이 걸리는 구성으로 됨을 특징으로 하는 쇽업소버.The inner cylinder 2 of the ER duct 1 is formed with the first and second inner cylinders 2a and 2b having a double structure, and the ER fluid and the ER fluid are formed in the space between the inner cylinder 2 and the out cylinder 3. Nitrogen gas (N 2 gas) is encapsulated together, and a spring seat 30 is installed on the outer circumferential surface of the out cylinder 3 to fix the spring to support the vehicle when the vehicle is mounted on the spring seat 30. A voltage of "+" is connected to each of the first and second inner cylinders 2a and 2b, and a voltage of "-" is connected to the out cylinder 3, and the out cylinder 3 and the piston 7 are energized. The first inner cylinder (2a) is a shock absorber, characterized in that the configuration is applied to the "-" voltage connected to the out cylinder (3).
KR1019970077547A 1997-12-30 1997-12-30 Shock absorber KR100392345B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970077547A KR100392345B1 (en) 1997-12-30 1997-12-30 Shock absorber

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Application Number Priority Date Filing Date Title
KR1019970077547A KR100392345B1 (en) 1997-12-30 1997-12-30 Shock absorber

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KR19990057494A true KR19990057494A (en) 1999-07-15
KR100392345B1 KR100392345B1 (en) 2003-10-17

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CN111828534B (en) * 2020-07-14 2021-12-03 国网上海市电力公司 Electromechanical equipment damping frame and damping method thereof

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