KR20070115301A - Clothes washing machine having balancer - Google Patents

Clothes washing machine having balancer Download PDF

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Publication number
KR20070115301A
KR20070115301A KR1020060049504A KR20060049504A KR20070115301A KR 20070115301 A KR20070115301 A KR 20070115301A KR 1020060049504 A KR1020060049504 A KR 1020060049504A KR 20060049504 A KR20060049504 A KR 20060049504A KR 20070115301 A KR20070115301 A KR 20070115301A
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KR
South Korea
Prior art keywords
balancer
housing
washing machine
reinforcing member
rotating tub
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KR1020060049504A
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Korean (ko)
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KR101362369B1 (en
Inventor
김자영
류두영
미치아카이 이토
강명순
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삼성전자주식회사
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Priority to KR1020060049504A priority Critical patent/KR101362369B1/en
Publication of KR20070115301A publication Critical patent/KR20070115301A/en
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Publication of KR101362369B1 publication Critical patent/KR101362369B1/en

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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
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/16—Imbalance
    • 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
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • 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
    • D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • 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
    • D06F37/265—Counterweights mounted to the tub; Mountings therefor
    • 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
    • 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
    • F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
    • F16F15/36—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved
    • F16F15/363—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved using rolling bodies, e.g. balls free to move in a circumferential direction
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/26—Imbalance; Noise level
    • 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)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

A washing machine with a balancer is provided to improve strength of the balancer and to prevent the balancer from being deformed and damaged. A washing machine with a balancer includes a rotating tub and the balancer(20). The balancer is formed with a reinforcing member(50). The reinforcing member is positioned at an outside of the balancer to reinforce strength of the balancer. The balancer includes a mass body(21) and a housing. The mass body performs a balancing role. The housing guides the mass body. The reinforcing member covers an outer circumferential surface of the housing. The reinforcing member is formed by a metallic material. The housing includes a first housing(30) and a second housing(40). The first housing forms an inner space. The second housing is combined with the first housing.

Description

밸런서를 구비한 세탁기{Clothes Washing Machine Having Balancer}Washing Machine Having Balancer

도 1은 본 발명의 일실시예에 따른 세탁기의 대략적인 구조를 보인 단면도이다.1 is a cross-sectional view showing a schematic structure of a washing machine according to an embodiment of the present invention.

도 2는 본 발명의 일실시예에 포함되는 회전조의 분해 사시도이다.2 is an exploded perspective view of a rotating tub included in an embodiment of the present invention.

도 3는 도2의 A-A'의 단면도이다.3 is a cross-sectional view taken along line AA ′ of FIG. 2.

도 4는 본 발명의 변형실시예에 따른 세탁기에 포함되는 밸런서의 사시도이다.4 is a perspective view of a balancer included in a washing machine according to a modified embodiment of the present invention.

도 5은 도4의 B-B'방향의 단면도이다.5 is a cross-sectional view taken along the line BB ′ of FIG. 4.

*도면의 주요부분에 대한 부호 설명** Description of symbols on the main parts of the drawings *

1: 하우징 2: 수조1: housing 2: countertop

10: 회전조 11: 몸체10: rotating tank 11: body

12: 전면부재 13: 후면부재12: front member 13: rear member

21: 질량체 22 : 점성유체21: mass 22: viscous fluid

30 : 제1하우징 31,32 : 제1,2벽면30: 1st housing 31, 32: 1st, 2nd wall surface

40: 제2하우징 50 : 보강부재.40: second housing 50: reinforcing member.

본 발명은 밸런서를 구비한 세탁기에 관한 것으로, 더욱 상세하게는 탈수시 진동 및 소음을 저감하기 위해 마련되는 밸런서를 구비한 세탁기에 관한 것이다.The present invention relates to a washing machine having a balancer, and more particularly, to a washing machine having a balancer provided to reduce vibration and noise during dehydration.

일반적으로 세탁기는 세탁물이 담겨진 회전조를 구동모터로 회전시켜서 세탁물을 세탁하게 되는데, 세탁과정에서는 회전조가 정방향과 역방향으로 저속 회전하게 되고, 탈수과정에서는 회전조가 정방향으로 고속 회전하게 된다.In general, a washing machine rotates a rotating tub containing laundry with a driving motor to wash the laundry. In the washing process, the rotating tub rotates at a low speed in the forward and reverse directions, and in the dehydration process, the rotating tub rotates at a high speed in the forward direction.

탈수과정 시 세탁물이 회전조의 전 지역에 골고루 놓여지지 않고 특정 부분에만 몰려서 놓여진 상태에서 회전조가 고속 회전하게 되면 회전조의 무게중심과 회전중심이 서로 일치하지 않게 되면서 진동과 소음을 유발시키게 되며, 이러한 현상이 반복되면 회전조와 회전축, 그리고 구동모터 등을 포함하는 부품들이 고장나거나 수명이 단축되게 된다.During the dehydration process, if the laundry is rotated at a high speed while the laundry is not evenly distributed over the entire area of the rotating tub and is concentrated only on a specific part, the center of gravity and the center of rotation of the rotating tub do not coincide with each other, causing vibration and noise. If repeated, components including the rotating tank, the rotating shaft, and the driving motor may fail or shorten their lifespan.

특히, 세탁기는 세탁물이 담겨지는 회전조가 수평으로 배치되는 구조를 가져서 탈수행정 시 세탁물이 중력에 의해 회전조의 바닥으로 모아진 상태에서 고속 회전하게 되기 때문에 무게중심과 회전중심이 서로 일치하지 않게 되어 진동과 소음이 유발될 가능성이 매우 높게 된다.In particular, the washing machine has a structure in which the rotating tub in which the laundry is placed is arranged horizontally so that the laundry rotates at a high speed in the state where the laundry is collected at the bottom of the rotating tub by gravity during dehydration, so that the center of gravity and the center of rotation do not coincide with each other. It is very likely that noise will be caused.

따라서 드럼타입의 세탁기를 포함하여 회전조가 수직으로 설치된 수직축 타입의 세탁기에는 통상적으로 회전조의 동적인 밸런스를 유지시켜 주기 위한 밸런서가 설치되게 된다.Therefore, a vertical shaft type washing machine including a drum type washing machine installed vertically is generally provided with a balancer for maintaining a dynamic balance of the rotating tank.

이러한 밸런서를 구비한 세탁기의 일례로는 대한민국 공개특허공보 특1999-0038279호가 있다. 상기 종래 세탁기의 밸런서는 밸런싱 질량 역할을 하는 강철구 와, 상기 강철구 움직임의 안내면 역할을 하는 레이서와, 레이서의 내부에 충진되어 강철구의 운동량을 조절하는 점성유를 구비하여 구성된다.An example of a washing machine having such a balancer is Korean Laid-Open Patent Publication No. 1999-0038279. The balancer of the conventional washing machine is configured with a steel ball serving as a balancing mass, a racer serving as a guide surface of the steel ball movement, and a viscous oil filling the inside of the racer to adjust the momentum of the steel ball.

따라서 회전조가 회전하게 되면 회전조 자체의 불균형적인 편심 구조와 회전조 내에서의 세탁물의 편중된 분포에 의해 회전조가 동적인 밸런스를 유지하지 못한 채로 회전하게 될 때 강철구가 이를 보상하게 되어 회전조가 동적인 밸런스를 유지할 수 있게 된다.Therefore, when the rotating tub rotates, the steel balls compensate for this when the rotating tub rotates without maintaining a dynamic balance due to the unbalanced eccentric structure of the rotating tub itself and the uneven distribution of the laundry in the rotating tub. In balance can be maintained.

그러나 상기의 공개특허공보에는 강철구의 안내면 역할을 하는 레이서는 플라스틱 재질로 사출성형된 상판과 하판을 융착시켜 결합하여 구성하는데 이와 같은 밸런서는 융착부의 결합력이 약하고 플라스틱의 재질특성상 강도가 약하여 강철구의 회전원심력에 의해 밸런서가 파손될 수 있는 문제점 있다.However, in the above publication, the racer serving as the guide surface of the steel sphere is formed by fusion bonding the upper plate and the lower plate which are injection-molded with plastic material. Such a balancer has a weak bonding strength and weak strength due to the material properties of the plastic. There is a problem that the balancer can be broken by centrifugal force.

본 발명은 상술한 종래기술의 문제점들을 해결하기 위한 것으로, 본 발명의 목적은 밸런서의 강도를 향상시킬 수 있는 구조를 구비한 세탁기의 밸런서를 제공하는 것이다.The present invention is to solve the above problems of the prior art, an object of the present invention to provide a balancer of a washing machine having a structure that can improve the strength of the balancer.

이러한 목적을 달성하기 위한 본 발명은 회전조와 밸런서를 포함하는 세탁기에 있어서, 상기 밸런서는 강도를 보강하기 위해 상기 밸런서의 외측에 마련되는 보강부재를 포함하는 것을 특징으로 한다.The present invention for achieving this object is characterized in that in the washing machine comprising a rotating tub and the balancer, the balancer includes a reinforcing member provided on the outside of the balancer to reinforce the strength.

또한, 상기 밸런서는 밸런싱역할을 하는 질량체와, 상기 질량체를 안내하는 하우징을 구비하는 것을 특징으로 한다.In addition, the balancer is characterized in that it comprises a mass for playing a balancing role, and a housing for guiding the mass.

또한, 상기 보강부재는 상기 하우징의 외면 또는 외측 원주면을 감싸도록 마련된 것을 특징으로 한다.In addition, the reinforcing member is characterized in that it is provided to surround the outer surface or the outer circumferential surface of the housing.

또한, 상기 보강부재는 금속재질로 마련된 것을 특징으로 한다.In addition, the reinforcing member is characterized in that the metal material.

또한, 상기 하우징은 내부에 공간이 형성되도록 제 1 하우징과, 상기 제 1 하우징에 융착되어 결합되는 제 2 하우징을 포함하는 것을 특징으로 한다.The housing may include a first housing and a second housing fused and coupled to the first housing to form a space therein.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 대하여 상세하게 설명하고자 한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

도 1은 본 발명의 일실시예에 따른 세탁기의 대략적인 구조를 보인 단면도이며, 도 2는 본 발명의 일실시예에 포함되는 회전조의 분해 사시도를 보인 것이다.1 is a cross-sectional view showing a schematic structure of a washing machine according to an embodiment of the present invention, Figure 2 is an exploded perspective view of a rotating tub included in an embodiment of the present invention.

본 발명의 일실시예에 따른 세탁기는 도1에 도시한 바와 같이, 외관을 형성하는 본체(1)와, 본체(1)의 내부에 설치되며 세탁수가 담겨지는 수조(2)와, 수조(2)의 내부에 회전 가능하게 배치되며 세탁물이 투입되어 세탁이 이루어지게 하는 회전조(10)와, 회전조(10)를 회전시켜서 세탁행정과 헹굼행정, 그리고 탈수행정이 이루어지도록 하는 구동모터(3)와, 수조(2)내부로 세제 및 물을 공급하는 급수장치(4)와, 수조(2)내의 세탁수를 외부로 배수하는 배수장치(5)와, 회전조(10)에 마련되어 탈수행정시 언밸런스에 의한 회전조(10)의 진동을 방지하기 위한 밸런서(20)를 포함하여 이루어진다.Washing machine according to an embodiment of the present invention, as shown in Figure 1, the main body 1 to form the appearance, the water tank 2 is installed inside the main body 1, the wash water is contained, and the water tank (2) Rotation tank 10 is rotatably disposed inside the laundry to put the laundry is made, and the driving motor (3) to rotate the washing tank 10 to wash and rinse stroke, and dehydration stroke And a water supply device (4) for supplying detergent and water into the water tank (2), a drainage device (5) for draining the washing water in the water tank (2) to the outside, and a rotary tank (10) It comprises a balancer 20 for preventing the vibration of the rotating tub 10 due to unbalance.

수조(2)와 회전조(10)의 전면은 회전조(10)의 내부로 세탁할 세탁물을 넣거나 회전조(10)에서 세탁이 완료된 세탁물을 꺼낼 수 있도록 개방되어 있으며, 본체(1)의 전면에는 수조(2)와 회전조(10)의 개방된 전면을 개폐하기 위한 도어(6)가 힌지 결합되어 있다.The front of the water tank (2) and the rotating tank (10) is open to put the laundry to be washed into the inside of the rotating tank (10) or to take out the laundry is completed from the rotating tank (10), the front of the main body (1) There is hinged door 6 for opening and closing the open front of the water tank (2) and the rotating tank (10).

급수장치(4)는 본체(1)의 내측 상부에 마련되어 외부 급수원으로부터 세탁수를 공급받기 위한 제1급수호스(4a)와, 세탁수에 세제가 혼합되어 수조(2)로 보내지도록 하기 위한 세제용기(4b), 세제가 혼합된 세탁수를 수조(2)로 안내하는 제2급수호스(4c)를 포함한다.The water supply device 4 is provided on the inner upper portion of the main body 1 so that the first water supply hose 4a for receiving the wash water from the external water source and the detergent are mixed with the wash water and sent to the water tank 2. The detergent container 4b and the second water supply hose 4c for guiding the washing water mixed with the detergent to the water tank 2 are included.

배수장치(5)는 본체(1)의 내측 하부에 마련되어 수조(2)에 담겨진 세탁수를 배수시키기 위한 배수펌프(5a)와, 배수펌프(5a)에 연결되어 세탁수를 본체(1)의 외부로 안내하기 위한 배수호스(5b,5c)를 포함한다.The drainage device 5 is provided at the inner lower portion of the main body 1 and is connected to the drainage pump 5a for draining the wash water contained in the water tank 2, and connected to the drainage pump 5a to supply the wash water to the main body 1. Drain hoses 5b and 5c for guiding to the outside.

본 발명의 일실시예에 따른 세탁기에 포함되는 회전조(10)는 도 2에 도시된 바와 같이, 회전조(10)는 전부와 후부가 개방되고 탈수홀(11a)과 리프터(11b)가 마련되어 있는 원통형상의 몸체(11)와, 몸체(11)의 개방된 전부에 결합되고 세탁물이 몸체(11)로 투입되거나 몸체(11)로부터 꺼낼 수 있게 하는 개구(14)가 마련된 전면부재(12)와, 몸체(11)의 개방된 후부에 결합되고 회전조(10)를 회전시키기 위한 회전축(7)(도 1 참조)이 결합되어 있는 후면부재(13)를 포함하여 이루어진다.As shown in FIG. 2, the rotating tub 10 included in the washing machine according to the exemplary embodiment of the present invention has the rotating tub 10 having a whole and a rear portion thereof and a dehydration hole 11a and a lifter 11b are provided. And a front member 12 provided with a cylindrical body 11 and an opening 14 coupled to all of the opened portions of the body 11 and allowing laundry to be introduced into or taken out of the body 11. , A rear member 13 coupled to the open rear portion of the body 11 and coupled with a rotating shaft 7 (see FIG. 1) for rotating the rotating tub 10.

몸체(11)의 원주면에는 다수의 탈수홀(11a)이 형성되어 세탁행정 시에는 수조(2)에 담겨진 물이 회전조(10)의 내부로 유입되어 세제가 용해되어 있는 물에 의해 세탁이 이루어질 수 있게 하고, 탈수행정 시에는 물이 배수호스(5b,5c)을 통해 본체(1)의 외측으로 배수될 수 있도록 한다. 또한 몸체(11)의 내주면에는 복수의 리프터(11b)가 일정한 간격으로 배치되어 세탁행정 시 회전조(10)가 저속 회전하게 됨에 따라 물이 적셔진 세탁물을 회전조(10)의 바닥에서 상향으로 끌어 올린 후 다 시 회전조(10)의 바닥으로 떨어뜨려서 세탁물이 효과적으로 세탁될 수 있게 한다.A plurality of dehydration holes (11a) is formed on the circumferential surface of the body (11), during the washing stroke water contained in the water tank (2) flows into the inside of the rotary tank (10) to wash by water in which detergent is dissolved In this case, the water can be drained out of the main body 1 through the drain hoses 5b and 5c. In addition, a plurality of lifters (11b) are arranged on the inner circumferential surface of the body (11) at regular intervals, so that the rotary bath (10) rotates at a low speed during the washing stroke, so that the water soaked is washed upward from the bottom of the rotary tank (10). Pulled up and dropped back to the bottom of the rotating tub 10 to allow the laundry to be washed effectively.

전면부재(12)는 밸런서(20)가 수용되도록 하기 위해 단면이 대략 'ㄷ' 형상으로 형성되어 전방을 향해 개방된 원환 형상의 리세스(15)가 테두리측에 마련된다. 후면부재(13)도 마찬가지로 밸런서(20)를 수용하기 위해 후방을 향해 개방된 원환 형상의 리세스(미도시)가 테두리측에 마련된다.In order to accommodate the balancer 20, the front member 12 is formed in an approximately 'c' cross section, and an annular recess 15 having an annular shape opened toward the front is provided at the edge side. Similarly, the rear member 13 is provided with an annular recess (not shown) open to the rear side to accommodate the balancer 20 on the edge side.

이러한 전면부재(12)와 후면부재(13)는 각각 몸체(11)의 선단 테두리와 후단 테두리에 끼워져서 나사 결합이나 다른 방식으로 결합되게 된다.The front member 12 and the rear member 13 are fitted to the front and rear edges of the body 11, respectively, so that they are coupled by screwing or otherwise.

회전조(10)의 후면에는 회전축(7)이 수조(2)의 후면을 통해 연장하도록 배치되며, 수조(2)의 후면 외측에는 회전축(7)이 결합되는 구동모터(3)가 설치된다. 따라서 회전조(10)는 구동모터(3)가 작동하게 되면 회전축(7)과 함께 회전하게 된다.(도 1 참조)The rear side of the rotating tub 10 is disposed so that the rotating shaft 7 extends through the rear side of the tank 2, and a driving motor 3 to which the rotating shaft 7 is coupled to the outer side of the rear tank 2 is installed. Therefore, the rotating tub 10 rotates together with the rotating shaft 7 when the driving motor 3 operates (see FIG. 1).

따라서 도어(6)를 열고 세탁물을 회전조(10)에 투입한 후에 세탁기를 작동시키게 되면 급수장치(4)를 통해 수조(2)에 세제가 혼합된 세탁수가 공급되고, 회전조(10)의 회전에 의해 세탁물이 리프터(11b)를 따라 상향으로 들어 올려져서 하향으로 낙하하게 됨으로써 세탁물이 세탁되게 되는 세탁행정이 수행된다. 또한 세탁행정이 종료되고 탈수행정이 시작되면 회전조(10)가 고속회전을 하여 원심력에 의해 탈수행정을 수행하게 된다.Therefore, when the washing machine is operated after the door 6 is opened and the laundry is put into the rotating tank 10, the washing water mixed with detergent is supplied to the water tank 2 through the water supply device 4, and the rotating tank 10 The laundry is lifted upward along the lifter 11b by the rotation and falls downward so that the laundry is washed. In addition, when the washing stroke is finished and the dehydration stroke is started, the rotating tub 10 rotates at a high speed to perform the dehydration stroke by centrifugal force.

즉, 세탁행정 시에는 구동모터(3)에 의해 회전축(7)이 정방향과 역방향으로 교대로 회전하면서 회전조(10)를 저속 회전시킴으로써 세탁물을 세탁하게 되며, 탈수행정 시에는 회전축(7)이 일 방향으로 회전하면서 회전조(10)를 고속 회전시킴으 로써 세탁물을 탈수시키게 된다.That is, in the washing stroke, the rotating shaft 7 rotates in a reverse direction from the forward direction by the driving motor 3 to wash the laundry by rotating the rotating tub 10 at low speed. In the dehydrating stroke, the rotating shaft 7 is washed. Rotating the rotating tub 10 while rotating in one direction to dehydrate the laundry.

이때, 탈수과정에서 회전조(10)가 고속회전 할 때 회전조(10) 자체가 무게중심과 회전중심이 일치하지 않거나 회전조(10) 내부의 세탁물이 일부지역에 몰려서 놓여지게 되는 경우 회전조(10)의 언밸런스가 발생하여 진동 및 소음을 야기하기 되는데, 이러한 언밸런스를 방지하기 위해 본발명에 따른 세탁기는 회전조(10)의 전면부재(12) 및 후면부재(13)에 밸런서(20)를 구비하게 된다. 이러한 밸런서(20)는 회전조(10)의 전단 또는 후단의 어느 일단에 설치되거나, 본 발명의 일실시예와 같이 양단에 모두 설치될 수 있다.At this time, when the rotating tub 10 rotates at a high speed in the dehydration process, the rotating tub 10 itself does not match the center of gravity and the center of rotation, or when the laundry inside the rotating tub 10 is placed in a part of the rotating tub, Unbalance of the (10) occurs to cause vibration and noise, the washing machine according to the present invention in order to prevent such an unbalance balancer 20 to the front member 12 and the rear member 13 of the rotating tub 10 It will be provided. The balancer 20 may be installed at either end of the front end or the rear end of the rotating tub 10, or may be installed at both ends as in the embodiment of the present invention.

도 3은 도2의 A-A'의 단면도이다.3 is a cross-sectional view taken along line AA ′ of FIG. 2.

본 발명의 일실시예에 포함되는 밸런서(20)는 전면부재(12)와 후면부재(13)의 리세스(15)에 설치되는데, 도 2,3에 도시된 바와 같이 원환 형상으로 형성되고, 밸런싱 기능을 하는 다수의 질량체(21)와, 질량체(21)의 회동을 안내하는 원환형상의 하우징(30,40)과, 질량체(21)의 이동속도를 조절하기 위해 하우징(30,40)의 내부공간(22)에 주입되는 점성유체(23)와, 밸런서(20)의 강도를 보강하기 위해 하우징(30,40)의 외측에 마련되는 보강부재(50)를 포함하여 이루어진다.The balancer 20 included in one embodiment of the present invention is installed in the recess 15 of the front member 12 and the rear member 13, and is formed in an annular shape as shown in Figs. A plurality of mass bodies 21 serving as a balancing function, annular housings 30 and 40 for guiding rotation of the mass bodies 21, and the housings 30 and 40 to adjust the moving speed of the mass bodies 21. It includes a viscous fluid 23 injected into the inner space 22, and a reinforcing member 50 provided on the outside of the housing (30, 40) to reinforce the strength of the balancer (20).

하우징(30,40)은 원환 형상을 가지며 서로 융착되어 밀폐된 내부공간(22)을 형성하게 되는 제 1 하우징(30)과 제 2 하우징(40)을 구비한다.The housings 30 and 40 have an annular shape and have a first housing 30 and a second housing 40 which are fused to each other to form an enclosed inner space 22.

제 1 하우징(30)은 서로 마주하는 제 1 벽면(31)과 제 2 벽면(32), 그리고 제 1 및 제 2 벽면(31)(32)의 단부를 연결하는 제 3 벽면(33)으로 이루어져서 내부에 질량체(21)와 점성유체(23)가 구비될 수 있도록 단면이 대략 'ㄷ' 형상으로 형 성된다.The first housing 30 consists of a first wall surface 31 and a second wall surface 32 facing each other, and a third wall surface 33 which connects end portions of the first and second wall surfaces 31 and 32. The cross section is formed in a substantially 'c' shape so that the mass 21 and the viscous fluid 23 are provided therein.

제 2 하우징(40)은 양단이 제 1 하우징(30)을 향해 절곡된 절곡부(41)가 형성되고 제2하우징(40)의 하면과 절곡부(41)의 내측이 각각 제 1하우징(30)의 제1,2벽면(31,32)의 선단부와 단부 측면을 덮게 되는 형태로 열 융착 또는 스핀 융착 방식에 의해 제1하우징(30)에 결합되게 된다.The second housing 40 has a bent portion 41 having both ends bent toward the first housing 30, and a lower surface of the second housing 40 and an inner side of the bent portion 41 are respectively formed in the first housing 30. It is coupled to the first housing 30 by a heat fusion or spin fusion method in such a way to cover the front end and the end side surface of the first and second wall surfaces (31, 32).

이러한 밸런서(20)는 탈수행정시에 하우징(30,40)의 내부공간(22)에서 밸런싱 작용을 위해 이동하게 되는 다수의 질량체(21)가 회전하게 되면서 제1, 2 벽면(31)(32)에 원심력이 작용하게 되어 밸런서(20)의 변형 또는 파손의 우려가 있는데, 이를 방지하기 위해 본 발명에 따른 세탁기에 포함되는 밸런서(20)는 강도를 보강하기 위해 하우징(30,40)의 외측에 보강부재(50)를 구비한다.The balancer 20 has a plurality of masses 21 which are moved for balancing action in the inner space 22 of the housings 30 and 40 during the dehydration stroke, so that the first and second wall surfaces 31 and 32 are rotated. Centrifugal force acts on the balancer 20, which may deform or damage the balancer 20. To prevent this, the balancer 20 included in the washing machine according to the present invention has an outer side of the housings 30 and 40 to reinforce strength. The reinforcing member 50 is provided.

보강부재(50)는 길이가 긴 직사각형 형상의 금속판을 원형으로 벤딩한 후 양단을 용접 등을 통하여 소정폭의 원통형상으로 형성하고, 프레스가공을 통하여 제1측면판(51)의 양단에서 내측으로 절곡하여 상면판(52)과 하면판(53)을 형성하고, 상면판(52)과 하면판(53)의 단부에서 다시 절곡하여 제2측면판(54)을 형성한다. 따라서 보강부재(50)는 4면의 폐쇄된 단면형상으로 내부에 하우징(30,40)이 설치되게 된다.The reinforcing member 50 is formed by bending a long rectangular metal plate in a circular shape, and then forming both ends into a cylindrical shape having a predetermined width by welding or the like, and from both ends of the first side plate 51 through the press working. The upper surface plate 52 and the lower surface plate 53 are bent to be bent, and bent again at the ends of the upper surface plate 52 and the lower surface plate 53 to form the second side plate 54. Therefore, the reinforcing member 50 has the housings 30 and 40 installed therein in a closed cross-sectional shape of four surfaces.

이때 제1하우징(30)의 제1,2벽면(31,32) 외측에는 보강부재(50)의 제1,2측면판(51,54)의 내측에 접하도록 소정길이 돌출된 지지리브(34)가 마련되는 것이 바람직하다. 지지리브(34)는 제 1하우징(30)의 서로 마주하는 제 1,2벽면(31)(32)에서 외측으로 돌출하여 보강부재(50)의 제1,2측면판(51,54)에 접하도록 하여, 다수의 질량체(21)가 하우징(30,40)의 내부공간(22)내에서 원운동하는 경우 반경외측으로 발생하는 원심력에 의해 플라스틱 사출물로 마련된 제1하우징(30)의 제1,2벽면(31,32)이 변형 또는 파손되지 아니하도록 보강부재(50)와 제1하우징(30)사이를 지지하게 된다.At this time, the support ribs 34 protruding a predetermined length to contact the inner side of the first and second side plates 51 and 54 of the reinforcing member 50 outside the first and second wall surfaces 31 and 32 of the first housing 30. Is preferably provided. The support ribs 34 protrude outward from the first and second wall surfaces 31 and 32 facing each other of the first housing 30 to the first and second side plates 51 and 54 of the reinforcing member 50. First mass of the first housing 30 provided with the plastic injection-molded material by centrifugal force generated radially outward when a plurality of masses 21 are circularly moved within the inner space 22 of the housings 30 and 40. The second wall surfaces 31 and 32 support the reinforcing member 50 and the first housing 30 so as not to be deformed or damaged.

상기와 같이 제작된 원환 형상의 밸런서(20)는 각각 회전조(10)의 전면부재(12)와 후면부재(13)에 마련된 원환 형상의 리세스(15)에 배치되고 여러 지점에서 리세스(15)에 용접 또는 볼트체결 등의 방법으로 간편하고 신속하게 조립되게 된다.The annular balancer 20 manufactured as described above is disposed in the annular recess 15 provided in the front member 12 and the rear member 13 of the rotating tub 10, respectively. 15) can be assembled quickly and easily by welding or bolting.

따라서 본 발명의 일실시예에 포함되는 밸런서(20)는 하우징(30,40)의 외부에 금속재질의 보강부재(50)를 마련하여 내부공간(22)의 질량체(21)가 원심력에 의해 외측으로 강한 힘을 가하는 경우에도 밸런서(20)의 파손을 방지할 수 있다. Therefore, the balancer 20 included in one embodiment of the present invention is provided with a metal reinforcing member 50 on the outside of the housing (30, 40) so that the mass body 21 of the inner space 22 by the centrifugal force Even if a strong force is applied, the balancer 20 can be prevented from being damaged.

도 4는 본 발명의 변형실시예에 따른 세탁기에 포함되는 밸런서의 사시도이며, 도 5는 도4의 B-B'방향의 단면도이다.4 is a perspective view of a balancer included in a washing machine according to a modified embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along the line BB ′ of FIG. 4.

다음은 본 발명의 변형실시예에 포함되는 밸런서에 대해 설명하도록 한다.Next will be described for the balancer included in the modified embodiment of the present invention.

본 발명의 일실시예와 동일한 구성은 동일한 도면부호를 부여하고, 그에 대한 설명은 생략하기로 한다.The same configuration as the embodiment of the present invention is given the same reference numerals, and description thereof will be omitted.

본 발명의 변형실시예에서는 보강부재(60)가 하우징(30,40)의 외측 원주면을 감싸는 형태로 마련된다. In a modified embodiment of the present invention, the reinforcing member 60 is provided to surround the outer circumferential surfaces of the housings 30 and 40.

즉, 질량체(21)에 의한 원심력은 밸런서(20)의 반경외측방향으로 발생하기 때문에 제1벽면(31)에 원심력이 강하게 작용하게 된다. 따라서 보강부재(50)는 긴 직사각형 형상의 금속판을 원형으로 벤딩한 후 양단을 용접 등을 통하여 소정폭의 원통형상으로 형성하여 하우징(30,40)의 외측 원주면을 감싸도록 한다. 이와 같이 밸런서(20)의 강도를 보강하여 원심력에 의해 반경외측으로 작용하는 힘에 의한 밸런서(20)의 변형 또는 파손을 방지할 수 있다. 또한 이러한 경우 지지리브(34)는 제1벽면(31)에만 구성될 수 있다.That is, since the centrifugal force by the mass body 21 is generated in the radially outward direction of the balancer 20, the centrifugal force acts strongly on the first wall surface 31. Therefore, the reinforcing member 50 is bent in a long rectangular metal plate in a circular shape to form both ends of the cylindrical shape of the predetermined width through welding or the like to surround the outer peripheral surface of the housing (30, 40). In this way, the strength of the balancer 20 can be reinforced to prevent deformation or breakage of the balancer 20 due to the force acting radially outward by the centrifugal force. In this case, the support rib 34 may be configured only on the first wall surface 31.

미설명부호 61은 보강부재(60)의 용접부를 나타낸다.Reference numeral 61 denotes a welded portion of the reinforcing member 60.

본 발명의 실시예에서는 밸런서가 드럼타입의 세탁기에 설치되는 것으로 하여 설명하였지만, 회전조가 수직으로 배치된 구조를 가진 수직축 세탁기에도 적용될 수 있다는 것은 명백하다.In the embodiment of the present invention has been described as the balancer is installed in the washing machine of the drum type, it is obvious that the rotating tub can also be applied to a vertical washing machine having a vertically arranged structure.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 세탁기는 밸런서의 외측에 보강부재를 마련하여 밸런서의 강도를 보강하여 밸런서의 변형 및 파손을 방지할 수 있는 효과가 있다.As described in detail above, the washing machine according to the present invention has an effect of preventing deformation and breakage of the balancer by providing a reinforcing member on the outside of the balancer to reinforce the strength of the balancer.

Claims (6)

회전조와 밸런서를 포함하는 세탁기에 있어서,In the washing machine including a rotating tub and a balancer, 상기 밸런서는 강도를 보강하기 위해 상기 밸런서의 외측에 마련되는 보강부재를 포함하는 것을 특징으로 하는 세탁기.The balancer washer, characterized in that it comprises a reinforcing member provided on the outside of the balancer to reinforce strength. 제 1항에 있어서, 상기 밸런서는 밸런싱역할을 하는 질량체와, 상기 질량체를 안내하는 하우징을 구비하는 것을 특징으로 하는 세탁기.The washing machine according to claim 1, wherein the balancer includes a mass that serves as a balancing role, and a housing that guides the mass. 제 2항에 있어서, 상기 보강부재는 상기 하우징의 외면을 감싸도록 마련된 것을 특징으로 하는 세탁기.The washing machine according to claim 2, wherein the reinforcing member is provided to surround an outer surface of the housing. 제 2항에 있어서, 상기 보강부재는 상기 하우징의 외측 원주면을 감싸도록 마련된 것을 특징으로 하는 세탁기.The washing machine according to claim 2, wherein the reinforcing member is provided to surround the outer circumferential surface of the housing. 제 3항 또는 제 4항에 있어서, 상기 보강부재는 금속재질로 마련된 것을 특징으로 하는 세탁기.The washing machine according to claim 3 or 4, wherein the reinforcing member is made of a metal material. 제 5항에 있어서, 상기 하우징은 내부에 공간이 형성되도록 제 1 하우징과, 상기 제 1 하우징에 융착되어 결합되는 제 2 하우징을 포함하는 것을 특징으로 하 는 세탁기.The washing machine according to claim 5, wherein the housing includes a first housing and a second housing fusion-bonded to the first housing so as to form a space therein.
KR1020060049504A 2006-06-01 2006-06-01 Clothes Washing Machine Having Balancer KR101362369B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9534335B2 (en) 2014-05-09 2017-01-03 Whirlpool Corporation Laundry treating appliance with integrated dynamic balancer
US9540754B2 (en) 2014-05-09 2017-01-10 Whirlpool Corporation Laundry treating appliance with integrated dynamic balancer

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JP2957144B2 (en) * 1996-05-23 1999-10-04 三星電子株式会社 Ball balancer for washing machine
KR19980061421U (en) * 1997-03-25 1998-11-05 윤종용 washer
KR19980061420U (en) * 1997-03-25 1998-11-05 윤종용 washer
KR100774162B1 (en) * 2001-11-07 2007-11-07 엘지전자 주식회사 fluid balancer in washing machine and method for fabricating the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9534335B2 (en) 2014-05-09 2017-01-03 Whirlpool Corporation Laundry treating appliance with integrated dynamic balancer
US9540754B2 (en) 2014-05-09 2017-01-10 Whirlpool Corporation Laundry treating appliance with integrated dynamic balancer

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