KR20110118952A - Suspension damper having magneto rheological fluid type for washing machine - Google Patents
Suspension damper having magneto rheological fluid type for washing machine Download PDFInfo
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- KR20110118952A KR20110118952A KR1020100038374A KR20100038374A KR20110118952A KR 20110118952 A KR20110118952 A KR 20110118952A KR 1020100038374 A KR1020100038374 A KR 1020100038374A KR 20100038374 A KR20100038374 A KR 20100038374A KR 20110118952 A KR20110118952 A KR 20110118952A
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- yokes
- solenoid assembly
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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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
- F16F7/09—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
- D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/24—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a vertical axis
- D06F37/245—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
- D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
- D06F37/269—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary receptacle
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
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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
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
- F16F3/04—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs
- F16F3/06—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs of which some are placed around others in such a way that they damp each other by mutual friction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
Description
본 발명은 세탁기의 세탁 및 탈수 작용시 세탁통에서 발생하는 진동과 소음을 감소시키는 댐퍼에 관한 것으로, 더욱 상세하게는 자기유변유체(Magneto Reologicla fluid)를 댐퍼의 로드에 적용시키어 진동과 소음을 현격하게 저감시킬 수 있는 세탁기용 자기유변유체 현가댐퍼에 관한 것이다.The present invention relates to a damper for reducing vibration and noise generated in a laundry container during washing and dehydration of a washing machine. More particularly, the magneto-reologicla fluid is applied to a rod of a damper to vibrate vibration and noise. A magnetorheological fluid suspension damper for a washing machine can be reduced.
세탁기에는 세탁물을 회전시키어 세탁 및 탈수하는 세탁통이 3점 또는 2점 지지 방식으로 본체에 지지되어 있으면서 이 세탁통의 회전시 발생하는 진동과 충격을 흡수하기 위해 여러 개의 현가댐퍼가 설치되어 있다.The washing machine is supported by the main body in a three- or two-point support system for washing and dewatering laundry by rotating the laundry, and a plurality of suspension dampers are installed to absorb vibrations and shocks generated when the laundry is rotated.
여기서 현가댐퍼는 세탁 및 탈수 작용시 회전하는 세탁통의 진동과 충격 및 소음을 흡수 저감할 뿐만 아니라, 이 댐퍼 자체에서 세탁통에 보유 지지력을 제공하여 별도의 현가(Suspension) 지지품을 필요치 않게 되어 있다.Here, the suspension damper not only absorbs and reduces the vibration, shock and noise of the rotating laundry tub during washing and dehydration, but also provides a holding force to the laundry tub from the damper itself, thereby eliminating the need for a separate suspension support.
종래에도 세탁기 작동시 소음과 진동 저감을 위해 댐퍼를 설치하였으나, 세탁시 세탁통의 세탁물이 한쪽으로 쏠리어 발생하는 진동과 소음발생을 효과적으로 감쇄시키지 못하였으며, 늦은 밤 세탁기 작동으로 인한 아파트 층간 소음문제 야기 및, 큰 이불과 같은 빨랫감을 세탁시 과도한 떨림 현상으로 발생하는 소음과 진동의 불안정성 등이 여전히 남아 있는 문제점이 있었다.Conventionally, dampers have been installed to reduce noise and vibration when the washing machine is operating.However, the washing machine does not effectively attenuate the vibration and noise generated when the laundry in the laundry box is pulled to one side, causing noise between floors of the apartment due to late night washing machine operation. And, there was a problem that the noise and vibration instability caused by excessive shaking when washing the laundry, such as a large blanket still remains.
한편, 종래 이와 같은 세탁기용 댐퍼 중 본 출원인에 의해 등록된 대한민국 실용신안등록 제410,220호와 실용신안등록 제383,889호 및 실용신안등록 제372,686호와 같은 세탁기용 댐퍼들을 일정한 댐퍼력을 유지하고 진동 저감이 이루어지는 댐퍼들이나, 진동과 소음 발생에 대한 저감력을 앞서 설명한 바와 같이 개선 시킬 필요가 있었다.Meanwhile, among such dampers for washing machines, dampers for washing machines, such as Korean Utility Model Registration No. 410,220 and Utility Model Registration No. 383,889 and Utility Model Registration No. 372,686, registered by the present applicant, maintain a constant damper force and reduce vibration. The dampers, or the damping force against vibration and noise generation, need to be improved as described above.
이에 본 발명은 상기와 같은 종래 문제점을 감안하여 발명된 것으로, 종래 세탁기용 댐퍼에 비하여 진동과 소음저감이 현저하게 이루어지면서 세탁 및 탈수시 세탁기의 안정성 확보와 상하충격, 진동을 빠른 응답성으로 신속하게 흡수 저감할 수 있도록 이루어진 세탁기용 자기유변유체형 현가댐퍼를 제공함에 그 목적이 있다.Therefore, the present invention was invented in view of the conventional problems as described above, while the vibration and noise reduction is remarkably made as compared with the conventional damper for washing machine, while ensuring the stability of the washing machine during washing and dehydration, up and down impact, and quick response with rapid response. It is an object of the present invention to provide a magnetorheological fluid suspension damper for a washing machine capable of reducing absorption.
상기와 같은 목적을 달성하기 위한 본 발명은 한쪽 선단에 축이 고정되는 실린더와, 이 실린더의 다른 쪽 선단에는 스프링 시트와 캡 사이에 배치되는 스프링으로 탄지되고 실린더 내부에서 여러 개의 오일씰을 매개로 밀봉되면서 댐퍼부의 상하부 베어링이 접촉되는 로드를 구비하여 이루어진 세탁기용 현가댐퍼에 있어서, 상기 댐퍼부는 상하부 베어링 사이에서 오일씰에 접한 선단 요크들과 중간 요크가 설치되고, 이 선단 요크들과 중간 요크 사이에는 제 1, 2 솔레노이드 조립부가 배치되며, 로드의 외경과 중간 요크의 내경 및 제 1, 2 솔레노이드 조립부의 내경이 접하는 틈새 부분에는 자기유변유체가 내장되어 이루어진 구조로 되어 있다.The present invention for achieving the above object is a cylinder fixed to the shaft on one end, and the other end of the cylinder is supported by a spring disposed between the spring seat and the cap and sealed through a plurality of oil seals inside the cylinder Suspension damper for a washing machine comprising a rod in contact with the upper and lower bearings of the damper portion, wherein the damper portion is provided between the front yoke and the intermediate yoke in contact with the oil seal between the upper and lower bearings, and between the tip yokes and the intermediate yoke. The 1st and 2nd solenoid assembly parts are arrange | positioned, and the clearance part which the outer diameter of a rod, the inner diameter of a middle yoke, and the inner diameter of a 1st, 2nd solenoid assembly part contact | connects has a structure in which a magnetorheological fluid was built-in.
상기와 같은 본 발명에 따른 세탁기용 자기유변유체형 현가댐퍼는 세탁기 작동시 자기유변유체가 적용된 댐퍼부에 의하여 빠른 응답성으로 세탁기의 진동 및 충격 및 소음을 분산 저감시키면서 세탁기의 떨림 발생을 억제하여 안정성 확보도 이루어지는 기능과 효과를 지닌다.The magnetorheological fluid type suspension damper for a washing machine according to the present invention as described above is suppressed by the vibration of the washing machine while reducing the vibration, shock and noise of the washing machine with a quick response by the damper part to which the magnetorheological fluid is applied when the washing machine is operated. It also has the function and effect to ensure stability.
도 1은 본 발명에 따른 세탁기용 자기유변유체형 현가댐퍼의 외관 사시도,
도 2는 도 1의 단면도,
도 3은 본 발명의 요부 확대 단면도,
도 4는 세탁기의 세탁통에 발생하는 전단력에 대해 회전 RPM을 나타낸 그래프로서, 본 발명의 자기유변유체형 댐퍼력과 고저(High and Low) 댐퍼력의 비교 그래프이다.1 is an external perspective view of a magnetorheological fluid suspension damper for a washing machine according to the present invention;
Fig. 2 is a sectional view of Fig. 1,
3 is an enlarged cross-sectional view of the main portion of the present invention;
Figure 4 is a graph showing the rotational RPM against the shear force generated in the washing tub of the washing machine, a graph of comparison of the magnetorheological fluid damper force and the high and low damper force of the present invention.
이하, 본 발명은 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 세탁기용 자기유변유체형 현가댐퍼의 외관 시시도이고, 도 2는 도 1의 단면도이며, 도 3은 본 발명의 요부 확대 단면도이다.1 is an external perspective view of a magnetorheological fluid type suspension damper for a washing machine according to the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is an enlarged cross-sectional view of main parts of the present invention.
본 발명은 세탁기의 세탁통과 본체 사이에 현가 설치되어 세탁통 회전 작동시 진동과 충격 및 소음을 저감시키는 현가댐퍼로서, 도면에 도시된 바와 같이 한쪽 선단에 축(1)이 고정되는 실린더(2)와, 이 실린더(2)의 다른 쪽 선단에는 스프링 시트(3)와 캡(4) 사이에 배치되는 스프링(5)으로 탄지되고 실린더(2) 내부에서 여러 개의 오일씰(6a,6b,6c)로 밀봉되면서 댐퍼부(7)의 상하부 베어링(8a,8b)이 접촉되는 로드(9)를 구비하여 이루어진 세탁기용 현가댐퍼에 있어서, 상기 댐퍼부(7)는 상하부 베어링(8a,8b) 사이에서 오일씰(6a,6b)에 접한 선단 요크(10a,10b)들과 이 선단 요크(10a,10b)들에 이격되어 중간 요크(10c)가 설치되고, 상기 선단 요크(10a,10b)들과 중간 요크(10c) 사이에는 제 1, 2 솔레노이드 조립부(11a,11b)가 배치되며, 상기 로드(9)의 외경과 중간 요크(10c)의 외경 및 제 1, 2 솔레노이드 조립부(11a,11b)의 내경이 접하는 틈새 부분에는 제 1, 2 솔레노이드 조립부(11a,11b)들의 자기장 부여에 따라 작용하는 자기유변유체(12)가 내장되어 이루어진 구조로 되어 있다.The present invention is a suspension damper is installed between the washing tub and the main body of the washing machine to reduce vibration, shock and noise during the rotating operation of the washing tub, the cylinder (2) is fixed to the shaft (1) at one end as shown in the figure; On the other end of the
여기서 상기 댐퍼부(7)의 양쪽 오일씰(6a,6b)들과 요크들(10a,10b,10c) 사이에 설치되는 오일씰(6c)들은 자기유변유체(12)를 밀봉시키는 역할을 가지며, 상기 실린더(2) 내부와 로드(9) 외경 둘레에 설치되는 오일씰(6a,6b,6c)들과 요크(10a,10b,10c), 베어링(8a,8b) 및, 자기유변유체(12)로 이루어진 댐퍼부(7)는 실린더(2)의 외부에서 눌러 고정시키는 파이프 롤링(14)에 의하여 고정되도록 되어 있다.Here, the
그리고 상기 실린더(2)에는 제 1, 2 솔레노이드 조립부(11a,11b)에 전선(13)을 연결하는 전선리드 와이어 구멍(15)이 형성되어 있으며, 상기 상부 베어링(8a)은 베어링 케이스(16)로 부유지지하고 하부 베어링(8b)은 캡(4)으로 각각 보유지지한다.In addition, the
한편, 본 발명에 적용된 자기유변유체(12)는 기히 공지된 바와 같이 광물 오일 또는 실리콘 오일매체로 미크론 크기의 자화입자를 분산시켜 만든 유체인데, 자기장이 가해지면 자화입자들이 수 밀리초 내에 체인을 형성하여 고체상태로 굳어지는 점성변화를 하는 유체이다.Meanwhile, the
이어 본 발명의 작용을 설명한다.Next, the operation of the present invention will be described.
일반적으로 세탁기는 초기 과진동시 도 4의 그래프처럼 A ~ C 구간에서 높은 댐퍼력이 필요하고 정상 RPM 시에 낮은 댐퍼력이 필요하게 된다.In general, the washing machine requires a high damper force in the period A ~ C during the initial over-vibration, and a low damper force at normal RPM.
도 4의 그래프에서와 같이 높은(High) 댐퍼력은 A ~ C 구간에서 낮은 진동이지만 정상 RPM에서는 높은 진동이 발생하고, 낮은(Low) 댐퍼력은 A ~ C 구간에서 높은 진동이지만 정상 RPM에서는 낮은 진동이 발생한다.As shown in the graph of Figure 4, the high damper force is a low vibration in the period A ~ C but high vibration occurs in the normal RPM, the low damper force is a high vibration in the period A ~ C but low in the normal RPM Vibration occurs.
그러나 본 발명에 적용된 자기유변유체(12)를 적용한 댐퍼부(7)는 전선(13)을 통하여 입력전압을 인가 및 차단 조절하면, 댐퍼력 조절이 가능하게 이루어진다.However, the
이에 따라 A ~ C 구간에서는 높은 댐퍼력을 부여하고 정상 RPM에서는 낮은 댐퍼력의 조절이 가능함에 따라 세탁시 세탁기의 진동, 충격 및 소음 발생을 적절하게 조절 저감하여 항상 저진동을 유지할 수 있는 것이다.Accordingly, the high damper force is given in the A ~ C section, and the low damper force can be adjusted at the normal RPM, so that the vibration, shock and noise of the washing machine can be properly controlled and reduced during washing to always maintain low vibration.
즉, 본 발명의 댐퍼부(7)는 세탁기의 구동 초기 과정시 제 1, 2 솔레노이드 조립부(11a,11b)에 전원을 인가하여 자기장이 자기유변유체(12)를 점성을 변화시켜 로드(9)의 외경을 구속하여 댐퍼력을 구속시키고, 정상 RPM에서는 제 1, 2 솔레노이드 조립부(11a,11b)의 전원을 차단하여 자기유변유체(12)를 유체상태로 유지시켜 로드(9)의 댐퍼력을 낮추도록 되어 있다.That is, the
이 같이 본 발명은 자기유변유체(12)를 이용한 댐퍼를 이용하여 솔레노이드의 전원인가에 의해 신속한 응답성으로 댐퍼력을 변화시킴에 따라 축과 로드에서 발생하는 진동과 소음을 빠르게 흡수 및 분산시킬 수 있다.As described above, the present invention can quickly absorb and disperse vibration and noise generated in the shaft and the rod by changing the damper force with quick response by applying the solenoid power by using the damper using the
1 : 축, 2 : 실린더,
3 : 스프링 시트, 4 : 스프링,
5 : 스프링, 6a,6b,6c : 오일씰(Oil Seal),
7 : 댐퍼부, 8a,8b : 베어링,
9 : 로드(Rod), 10a,10b,10c : 요크,
11a,11b : 솔레노이드 조립부,
12 : 자기유변유체(Magneto Rheological Fluid),
13 : 전선, 14 : 파이프 롤링(Pipe Rolling),
15 : 전선리드 와이어 구멍(Lead wire hole),
16 : 베어링 케이스.1 axis, 2 cylinders,
3: spring seat, 4: spring,
5: spring, 6a, 6b, 6c: oil seal,
7: damper portion, 8a, 8b: bearing,
9: rod, 10a, 10b, 10c: yoke,
11a, 11b: solenoid assembly,
12: magneto Rheological Fluid,
13: wire, 14: pipe rolling,
15: lead wire hole,
16: bearing case.
Claims (2)
상기 댐퍼부(7)는 상하부 베어링(8a,8b) 사이에서 오일씰(6a,6b)에 접한 선단 요크(10a,10b)들과 이 선단 요크(10a,10b)들에 이격되어 중간 요크(10c)가 설치되고, 이 선단 요크(10a,10b)들과 중간 요크(10c) 사이에는 제 1, 2 솔레노이드 조립부(11a,11b)가 배치되며, 상기 로드(9)의 외경과 중간 요크(10c)의 외경 및 제 1, 2 솔레노이드 조립부(11a,11b)의 내경이 접하는 틈새 부분에는 제 1, 2 솔레노이드 조립부(11a,11b)들의 자기장 부여에 따라 작용하는 자기유변유체(12)가 내장되어 이루어진 것을 특징으로 하는 세탁기용 자기유변유체형 현가댐퍼.One end of the cylinder 2 is fixed to the cylinder 2, the other end of the cylinder 2 is supported by a spring 5 disposed between the spring seat 3 and the cap 4 and the cylinder 2 In the suspension damper for a washing machine comprising a rod (9) which is sealed by a plurality of oil seals (6a, 6b, 6c) inside the upper and lower bearings (8a, 8b) of the damper portion (7),
The damper portion 7 is spaced apart from the tip yokes 10a and 10b and the tip yokes 10a and 10b in contact with the oil seals 6a and 6b between the upper and lower bearings 8a and 8b. And first and second solenoid assembly portions 11a and 11b are disposed between the tip yokes 10a and 10b and the intermediate yoke 10c, and the outer diameter and the middle yoke 10c of the rod 9 are disposed. In the gap portion where the outer diameter and the inner diameter of the first and second solenoid assembly portions 11a and 11b contact each other, a magnetorheological fluid 12 acting in response to the magnetic field of the first and second solenoid assembly portions 11a and 11b is embedded. Magnetorheological fluid suspension damper for a washing machine, characterized in that made.
상기 실린더(2) 내부와 로드(9) 외경 둘레에 설치되는 오일씰(6a,6b,6c)들과 요크(10a,10b,10c), 베어링(8a,8b) 및, 자기유변유체(12)로 이루어진 댐퍼부(7)는 실린더(2)의 외부에서 눌러 고정시키는 파이프 롤링(14)에 의하여 고정된 것을 특징으로 하는 세탁기용 자기유변유체형 현가댐퍼.The method of claim 1,
With oil seals 6a, 6b, 6c, yokes 10a, 10b, 10c, bearings 8a, 8b, and magnetorheological fluids 12 installed inside the cylinder 2 and around the outer diameter of the rod 9, The damper portion 7 is made of a magnetorheological fluid suspension damper for a washing machine, characterized in that the fixed by the rolling pipe (14) to press and fix the outside of the cylinder (2).
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101130785B1 (en) * | 2011-11-15 | 2012-03-28 | 주식회사 삼코 | A magnet friction damper for a drum type washing machine |
KR200459493Y1 (en) * | 2011-11-15 | 2012-04-02 | 주식회사 삼코 | A MR Friction Damper with a core having a tapered surface for a drum type washing machine |
KR101233651B1 (en) * | 2011-11-04 | 2013-02-15 | 주식회사 썬 프레인 코 | Magnetic damper |
DE102012017423B4 (en) * | 2012-09-04 | 2015-07-09 | Inventus Engineering Gmbh | Magnetorheological transmission device |
Family Cites Families (2)
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JP2001170390A (en) | 1999-12-16 | 2001-06-26 | Hitachi Ltd | Dehydrating washing machine |
JP2002346282A (en) | 2001-05-23 | 2002-12-03 | Toshiba Corp | Drum type washing machine |
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2010
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101233651B1 (en) * | 2011-11-04 | 2013-02-15 | 주식회사 썬 프레인 코 | Magnetic damper |
KR101130785B1 (en) * | 2011-11-15 | 2012-03-28 | 주식회사 삼코 | A magnet friction damper for a drum type washing machine |
KR200459493Y1 (en) * | 2011-11-15 | 2012-04-02 | 주식회사 삼코 | A MR Friction Damper with a core having a tapered surface for a drum type washing machine |
DE102012017423B4 (en) * | 2012-09-04 | 2015-07-09 | Inventus Engineering Gmbh | Magnetorheological transmission device |
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