KR20120059803A - Suspension damper having magnet for drum washing machine - Google Patents

Suspension damper having magnet for drum washing machine Download PDF

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Publication number
KR20120059803A
KR20120059803A KR1020100121252A KR20100121252A KR20120059803A KR 20120059803 A KR20120059803 A KR 20120059803A KR 1020100121252 A KR1020100121252 A KR 1020100121252A KR 20100121252 A KR20100121252 A KR 20100121252A KR 20120059803 A KR20120059803 A KR 20120059803A
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South Korea
Prior art keywords
washing machine
felt
cylinder
fixed
drum washing
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KR1020100121252A
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Korean (ko)
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KR101178579B1 (en
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박찬익
박남훈
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주식회사 삼코
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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
    • 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • 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
    • 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
    • D06F49/00—Domestic spin-dryers or similar spin-dryers not suitable for industrial use
    • D06F49/06—Mountings, e.g. resilient mountings, for the bowl or casings; Preventing or damping vibrations
    • 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
    • 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)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

PURPOSE: A suspension damper having electromagnet for drum washing machine is provided to quickly reduce the vibration by a damper portion with a magnet during the operation of a washing machine. CONSTITUTION: A suspension damper having magnet for drum washing machine comprises a first head(2a) combined with an electromagnet case(4) in which an electromagnet is mounted, fixed to one front end of a cylinder(5). An outer diameter of a fixed pipe(6), in which a second head(2b) is fixed, is inserted into the inner diameter of the cylinder. By a first friction effect, the cylinder is combined to the outer diameter of the pipe by an outer felt(7a). A felt case(11) with an inner felt(7b) is fixed to a rod(90) by a washer(10).

Description

드럼세탁기용 전자석 현가댐퍼{Suspension damper having magnet for drum washing machine}Electromagnetic suspension damper for drum washing machine {Suspension damper having magnet for drum washing machine}

본 발명은 드럼세탁기의 세탁 및 탈수 작용시 세탁통에서 발생하는 진동과 소음을 감소시키는 댐퍼에 관한 것으로, 특히 전자석(Magnet)을 댐퍼에 적용하여 진동과 소음을 현격히 저감시킬 수 있는 드럼세탁기용 전자석 현가댐퍼에 관한 것이다.The present invention relates to a damper for reducing vibrations and noise generated in a laundry container during washing and dehydration of a drum washing machine. In particular, an electromagnet suspension for a drum washing machine that can significantly reduce vibration and noise by applying an electromagnet to a damper. It is about a damper.

세탁기에는 세탁물을 회전시키어 세탁 및 탈수하는 세탁통이 3점 또는 2점 지지방식으로 본체에 지지되어 있으면서 이 세탁통의 회전시 발생하는 진동과 충격을 흡수하기 위해 여러 개의 현가댐퍼가 설치되어 있는데, 여기서 세탁통의 보유 지지하는 현가댐퍼는 세탁 및 탈수 작용시 회전하는 세탁통의 진동과 충격 및 소음을 흡수 저감하도록 되어 있다.The washing machine is supported by the main body with a 3-point or 2-point support system for washing and dehydrating the laundry by rotating the laundry, and is equipped with several suspension dampers to absorb the vibration and shock generated when the washing machine rotates. Suspension damper to hold the absorber is designed to absorb and reduce vibration, shock and noise of the rotating laundry tub during washing and dehydration action.

종래에도 드럼세탁기에는 세탁기 작용시 소음과 진동저감을 위해 댐퍼를 설치하였으나, 세탁기의 세탁물이 한쪽으로 쏠리어 발생하는 진동과 소음발생을 효과적으로 감쇄시키지 못하였으며, 늦은 밤 세탁기 작동으로 인한 아파트 층간 소음문제 야기 및 이불과 같은 큰 빨랫감을 세탁할 때 과도한 떨림 현상으로 발생하는 소음과 진동의 불안정 등이 여전히 남아 있는 문제점이 있다.Conventionally, in the drum washing machine, a damper is installed to reduce noise and vibration when the washing machine operates, but the laundry of the washing machine does not effectively attenuate the vibration and noise generated by one side of the washing machine. There is a problem that noise and vibration instability caused by excessive shaking phenomenon still remain when washing large clothes such as yagi and duvet.

특히 종래 댐퍼는 회전하는 세탁통의 고저 회전시에 상관없이 댐퍼력이 동일하게 충격과 소음을 저감시키기 때문에 댐퍼의 댐핑력 조절능력을 갖추지 못한 기능력 약점도 지니고 있었다.In particular, the conventional damper had a weakness in the functional force does not have the damping force control ability of the damper because the damper force to reduce the impact and noise equally regardless of the high and low rotation of the rotating laundry tub.

이에 본 발명은 상기와 같은 종래 문제점을 감안하여 발명된 것으로, 회전하는 드럼 세탁통의 진동과 소음을 효과적으로 흡수 저감하면서 세탁통의 고저 회전에 대응하여 댐핑력이 각각 다르게 작용하여 조절됨에 따라 드럼세탁기 작용시 진동을 신속한 응답성으로 저감하여 정숙함의 향상으로 제품의 고급화를 추구할 수 있는 드럼세탁기용 전자석 현가댐퍼를 제공함에 그 목적이 있다.Accordingly, the present invention has been invented in view of the conventional problems as described above, and when the drum washing machine functions as the damping force acts differently in response to the high and low rotation of the washing machine while effectively absorbing and reducing the vibration and noise of the rotating drum washing machine. It is an object of the present invention to provide an electromagnet suspension damper for a drum washing machine, which can reduce vibrations to a quick response and pursue a high quality product by improving quietness.

상기와 같은 목적을 달성하기 위한 본 발명은 양쪽 선단이 세탁기 본체에 각각 결합되는 제 1, 2 헤드를 구비하여 이루어진 드럼세탁기용 현가댐퍼에 있어서, 상기 제 1 헤드는 전자석과 결합된 상태로 실린더의 한쪽 선단에 고정되며, 이 실린더의 다른 쪽 선단에는 제 2 헤드가 고정된 파이프의 외경이 실린더의 내경에 삽입되어 결합되되, 상기 실린더의 내경에 윤활제가 도포된 상태로 고정된 바깥 펠트에 의해서 파이프의 외경과 1차적 마찰작용이 이루어지게 결합되고, 상기 파이프의 내부에는 실린더 내부로 연장된 헤드를 갖는 로드에 내부 펠트를 갖춘 펠트 케이스가 와셔로 고정되어 이 파이프 내경에 접하면서 2차적 마찰작용이 이루어지게 결합되어 있다.The present invention for achieving the above object is a suspension damper for drum washing machine comprising a first and a second head both ends are respectively coupled to the washing machine body, the first head is coupled to the electromagnet of the cylinder It is fixed to one end, and the other end of the cylinder is coupled to the outer diameter of the pipe in which the second head is fixed is inserted into the inner diameter of the cylinder, and coupled to the inner diameter of the cylinder by the outer felt fixed with the lubricant applied Primary friction action is combined with the outer diameter of the pipe, and the inside of the pipe has a felt case having an inner felt on a rod having a head extending into the cylinder, and is fixed with a washer, so that the secondary friction action comes into contact with the inner diameter of the pipe. Are united together.

이와 같은 본 발명에 따른 드럼세탁기용 전자석 현가댐퍼는 세탁기 작동시 전자석이 적용된 댐퍼부에 의하여 진동을 신속하게 저감시키어 정숙성이 향상되어 제품 고급화를 도모할 수 있는 드럼세탁기를 제공할 수 있다.The electromagnet suspension damper for a drum washing machine according to the present invention can provide a drum washing machine that can quickly reduce vibration by the damper part to which the electromagnet is applied when the washing machine is operated, thereby improving the quietness and improving the product quality.

도 1은 본 발명에 따른 드럼세탁기용 전자석 현가댐퍼의 외관 사시도,
도 2는 도 1의 단면도,
도 3은 본 발명의 부분확대 단면도,
도 4는 드럼세탁기의 세탁통에 발생하는 전달력(Trans mitted force)에 대한 회전 RPM을 나타낸 그래프로서, 본 발명의 전자석 댐퍼력과 고저(High and Low) 댐퍼력을 비교한 그래프이다.1 is an external perspective view of an electromagnet suspension damper for a drum washing machine according to the present invention;
Fig. 2 is a sectional view of Fig. 1,
3 is a partially enlarged cross-sectional view of the present invention;
Figure 4 is a graph showing the rotational RPM for the transmitted force (Transmitted force) generated in the washing machine of the drum washing machine, a graph comparing the electromagnet damper force and the high and low damper force of the present invention.

이하, 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 양쪽 선단이 세탁기 본체에 각각 결합되는 관통구멍(1)이 형성된 제 1, 2 헤드(2a,2b)를 구비하여 이루어진 드럼세탁기용 현가댐퍼에 있어서, 상기 제 1 헤드(2a)는 전자석(3)을 내장한 전자석 케이스(4)와 결합된 상태로 실린더(5)의 한쪽 선단에 고정되며, 이 실린더(5)의 다른 쪽 선단에는 제 2 헤드(2b)가 고정된 파이프(6)의 외경이 실린더(5)의 내경에 삽입되어 결합되되, 상기 실린더(5)의 내경에 윤활제 도포된 상태로 고정된 바깥 펠트(7a)에 의해서 파이프(6)의 외경과 1차적 마찰작용이 이루어지게 결합되고, 상기 파이프(6)의 내부에는 실린더(5) 내부로 연장된 헤드(8)를 갖춘 로드(9)에 내부 펠트(7b)를 구비한 펠트 케이스(11)가 와셔(10)로 고정되어 상기 파이프(6) 내경에 접하면서 2차적 마찰작용이 이루어지게 결합되어 있다.In the present invention, the suspension damper for a drum washing machine comprising first and second heads (2a, 2b) formed with through holes (1), each end of which is coupled to a washing machine body, wherein the first head (2a) is an electromagnet. A pipe 6 having a second head 2b fixed to one end of the cylinder 5 in a state of being coupled to an electromagnet case 4 having a built-in (3), and having a second head 2b fixed to the other end of the cylinder 5. The outer diameter of is inserted into the inner diameter of the cylinder (5) is coupled, the primary friction action is made with the outer diameter of the pipe (6) by the outer felt (7a) fixed in a state in which the lubricant is applied to the inner diameter of the cylinder (5) A felt case 11 having an internal felt 7b on a rod 9 having a head 8 extending inside the pipe 6 and extending into the cylinder 5 is provided with a washer 10. It is fixed and coupled to the secondary friction action while contacting the inner diameter of the pipe (6).

이러한 구조를 갖는 본 발명은 세탁기 탈수시 세탁통의 진동이 낮을 때(정상 RPM으로 구동될 때)에는 제 2 헤드(2b)가 결합된 파이프(6) 만이 실린더(5)의 내경에서 왕복동 이동하게 됨으로써 상기 실린더(5) 내경에 장착되어 있는 바깥 펠트(7b)에 의해 파이프(6) 외벽과의 마찰력으로 진동과 충격의 흡수가 이루어진다.In the present invention having such a structure, when the washing machine is dehydrated when the vibration of the washing machine is low (when driven at a normal RPM), only the pipe 6 to which the second head 2b is coupled is reciprocated in the inner diameter of the cylinder 5. The outer felt 7b mounted on the inner diameter of the cylinder 5 absorbs vibrations and shocks by friction with the outer wall of the pipe 6.

한편, 세탁통의 진동이 높을 때(과진동으로 구동될 때)에는 실린더(5) 내경에서 제 1 헤드(2a)가 결합된 상태로 고정되어 있는 전자석(3)에 전류를 인가시키게 되는데, 이때 상기 전자석(3)에는 자기장이 형성하게 되고, 이 자기장은 파이프(6) 내경에서 펠트 케이스(11)와 내부 펠트(7b)가 일체형으로 고정되어 있는 로드(9)의 헤드(8)를 끌어당겨서 전자석(3)에 구속시킨다.On the other hand, when the vibration of the washing container is high (overdriven when driven), the electric current is applied to the electromagnet 3 which is fixed in the state in which the first head 2a is coupled at the inner diameter of the cylinder 5. A magnetic field is formed in the electromagnet 3, and the magnetic field attracts the head 8 of the rod 9 on which the felt case 11 and the inner felt 7b are integrally fixed at the inner diameter of the pipe 6. To (3).

이에 따라 파이프(6)가 왕복동을 하게 되면, 이 파이프(6) 외경과 바깥 펠트(7a)의 마찰력뿐만 아니라, 파이프(6)의 내경과 내부 펠트(7b)의 마찰력도 같이 작용하게 되므로 마찰력 증대로 인한 진동과 충격을 보다 효과적으로 흡수할 수가 있도록 되어 있다.Accordingly, when the pipe 6 reciprocates, not only the friction force between the outer diameter and the outer felt 7a of the pipe 6 but also the friction force between the inner diameter of the pipe 6 and the inner felt 7b acts together, thereby increasing the frictional force. It is designed to absorb the vibration and shock caused by more effectively.

여기서, 상기 바깥 펠트(7a)와 내부 펠트(7b)의 두께는 세탁기의 중량에 따라 조절하여 적절한 댐퍼력을 가질 수 있음은 물론이며, 상기 내부 펠트(7b)가 설치되는 펠트 케이스(11)의 중간에는 윤활제 도포공간(12)이 형성되어 있다.Here, the thickness of the outer felt (7a) and the inner felt (7b) can be adjusted according to the weight of the washing machine can have an appropriate damper force, of course, of the felt case (11) in which the inner felt (7b) is installed In the middle, a lubricant applying space 12 is formed.

한편, 일반적인 세탁기는 초기 과진동시 도 4의 그래프처럼 A ~ C 구간에서 높은 진동이지만 정상 RPM에서는 낮은 진동이 발생한다.On the other hand, the general washing machine is a high vibration in the A ~ C section as shown in the graph of the initial over-vibration but low vibration occurs in the normal RPM.

그러나 본 발명에 따른 댐퍼는 공지의 전선을 통하여 전자석(3)에 입력전압을 인가 및 차단 조절하면 댐퍼력의 조절이 가능하도록 되어 있기 때문에 도 4의 그래프에서 A ~ C 구간에서는 높은 댐퍼력을 부여하고 정상 RPM에서는 낮은 댐퍼력을 부여하도록 조절이 가능함에 따라 세탁시 세탁기의 진동과 충격을 효과적으로 흡수하도록 되어 있다.However, since the damper according to the present invention is capable of adjusting the damper force by applying and blocking the input voltage to the electromagnet 3 through a known electric wire, high damper force is given in the A to C section in the graph of FIG. 4. And at the normal RPM can be adjusted to give a low damper force to effectively absorb the vibration and shock of the washing machine when washing.

즉, 본 발명은 세탁 초기시 상기 전자석(3)에 전원을 인가시켜 자기장을 형성하여 로드(9)를 구속하여 댐퍼력을 강하게 유지시키고, 정상 RPM에서는 이 전자석(3)의 전원을 차단하여 로드(9)의 구속을 해제시킴으로써 댐퍼력을 낮추도록 되어 있다.That is, the present invention is applied to the electromagnet (3) at the initial washing to form a magnetic field to restrain the rod (9) to maintain a strong damper force, at a normal RPM to cut off the power of the electromagnet (3) The damper force is lowered by releasing the restraint of (9).

1 : 관통구멍, 2a : 제 1 헤드,
2b : 제 2 헤드, 3 : 전자석,
4 : 전자석 케이스, 5 : 실린더,
6 : 파이프, 7a,7b : 펠트(Felt),
8 : 헤드, 9 : 로드,
10 : 와셔, 11 : 펠트 케이스,
12 : 윤활제 도포공간.1: through hole, 2a: 1st head,
2b: second head, 3: electromagnet,
4: electromagnet case, 5: cylinder,
6: pipe, 7a, 7b: felt,
8: head, 9: rod,
10: washer, 11: felt case,
12: lubricant application space.

Claims (3)

양쪽 선단이 세탁기 본체에 각각 결합되는 관통구멍(1)이 형성된 제 1, 2 헤드(2a,2b)를 구비하여 이루어진 드럼세탁기용 현가댐퍼에 있어서,
상기 제 1 헤드(2a)는 전자석(3)을 내장한 전자석 케이스(4)와 결합된 상태로 실린더(5)의 한쪽 선단에 고정되며, 이 실린더(5)의 다른 쪽 선단에는 제 2 헤드(2b)가 고정된 파이프(6)의 외경이 실린더(5)의 내경에 삽입되어 결합되되, 상기 실린더(5)의 내경에 윤활제 도포된 상태로 고정된 바깥 펠트(7a)에 의해서 파이프(6)의 외경과 1차적 마찰작용이 이루어지게 결합되고, 상기 파이프(6)의 내부에는 실린더(5) 내부로 연장된 헤드(8)를 갖춘 로드(9)에 내부 펠트(7b)를 구비한 펠트 케이스(11)가 와셔(10)로 고정되어 상기 파이프(6) 내경에 접하면서 2차적 마찰작용이 이루어지게 결합된 것을 특징으로 하는 드럼세탁기용 전자석 현가댐퍼.A suspension damper for a drum washing machine, wherein both ends are provided with first and second heads (2a, 2b), each having a through hole (1) coupled to a washing machine body.
The first head 2a is fixed to one end of the cylinder 5 in a state of being engaged with the electromagnet case 4 containing the electromagnet 3 therein, and the second head (2) is connected to the other end of the cylinder 5. The outer diameter of the pipe 6 to which 2b) is fixed is inserted into and coupled to the inner diameter of the cylinder 5, and the pipe 6 is fixed by an outer felt 7a fixed in a state in which lubricant is applied to the inner diameter of the cylinder 5. Felt case having an inner felt (7b) in the rod (9) having a head (8) extending into the cylinder (5) inside the pipe (6) is coupled to achieve a primary friction action with the outer diameter of Electromagnetic suspension damper for a drum washing machine, characterized in that the secondary friction action is coupled to the pipe (6) is fixed to the washer (10) in contact with the inner diameter. 제 1항에 있어서,
상기 내부 펠트(7b)가 설치되는 펠트 케이스(11)의 중간에는 윤활제 도포공간(12)이 형성되어 이루어진 것을 특징으로 하는 드럼세탁기용 전자석 현가댐퍼.The method of claim 1,
Electrostatic suspension damper for a drum washing machine, characterized in that the lubricant application space 12 is formed in the middle of the felt case (11) in which the inner felt (7b) is installed. 제 1항에 있어서,
상기 바깥 펠트(7a)와 내부 펠트(7b)의 두께는 세탁기의 중량에 따라 조절되어 설치되는 것을 특징으로 하는 드럼세탁기용 전자석 현가댐퍼.
The method of claim 1,
Electrostatic suspension damper for drum washing machine, characterized in that the thickness of the outer felt (7a) and the inner felt (7b) is installed to be adjusted according to the weight of the washing machine.
KR1020100121252A 2010-12-01 2010-12-01 Suspension damper having magnet for drum washing machine KR101178579B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110965267A (en) * 2018-09-29 2020-04-07 青岛海尔洗衣机有限公司 Washing machine shock absorber and washing machine

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KR102247214B1 (en) * 2020-08-25 2021-05-04 주식회사 삼코 Damper device for washing machines

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US20040231374A1 (en) 2003-05-20 2004-11-25 Chang Jae Won Damper for washing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110965267A (en) * 2018-09-29 2020-04-07 青岛海尔洗衣机有限公司 Washing machine shock absorber and washing machine
CN110965267B (en) * 2018-09-29 2022-05-24 青岛海尔洗衣机有限公司 Washing machine shock absorber and washing machine

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