KR100332770B1 - Washing machine - Google Patents
Washing machine Download PDFInfo
- Publication number
- KR100332770B1 KR100332770B1 KR1019990036894A KR19990036894A KR100332770B1 KR 100332770 B1 KR100332770 B1 KR 100332770B1 KR 1019990036894 A KR1019990036894 A KR 1019990036894A KR 19990036894 A KR19990036894 A KR 19990036894A KR 100332770 B1 KR100332770 B1 KR 100332770B1
- Authority
- KR
- South Korea
- Prior art keywords
- tub
- outer casing
- spring member
- vibration
- washing machine
- Prior art date
Links
- 238000005406 washing Methods 0.000 title claims abstract description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000013016 damping Methods 0.000 claims description 18
- 230000007423 decrease Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 3
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 230000002238 attenuated effect Effects 0.000 abstract description 7
- 230000018044 dehydration Effects 0.000 abstract description 5
- 238000006297 dehydration reaction Methods 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 description 8
- 230000002441 reversible effect Effects 0.000 description 5
- 230000003993 interaction Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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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
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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
-
- 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
- D06F37/30—Driving arrangements
-
- 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
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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
- F16F9/003—Dampers characterised by having pressure absorbing means other than gas, e.g. sponge rubber
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
본 발명은, 세탁기에 관한 것으로, 통형상을 갖는 외부케이싱과; 상기 외부케이싱내에 세탁수를 수용가능하도록 설치되는 터브와; 상기 터브의 외표면으로부터 상기 외부케이싱측을 향하여 돌출되는 스프링부재와, 상기 스프링부재의 자유단부에 형성되는 질량추를 가지고 상기 터브의 진동을 감쇠시키는 적어도 하나의 동흡진장치를 포함하는 것을 특징으로 한다. 이에 의하여, 터브의 진동을 감쇠시킴과 동시에 탈수시 과도한 이상진동을 적절히 완화시킬 수 있다.The present invention relates to a washing machine, comprising: an outer casing having a tubular shape; A tub installed to accommodate the wash water in the outer casing; And a spring member protruding from the outer surface of the tub toward the outer casing side, and at least one copper suction device having a mass weight formed at a free end of the spring member to damp vibration of the tub. do. Thereby, the vibration of the tub is attenuated, and at the same time, excessive abnormal vibration during dehydration can be appropriately alleviated.
Description
본 발명은, 세탁기에 관한 것으로서, 보다 상세하게는, 터브의 진동에 기인한 소음을 감쇠시키고 탈수시 과도한 이상진동을 억제시킬 수 있도록 한 세탁기에 관한 것이다.The present invention relates to a washing machine, and more particularly, to a washing machine capable of attenuating noise caused by vibration of a tub and suppressing excessive abnormal vibration during dehydration.
일반적으로 세탁기는 통형상을 갖는 외부케이싱과, 외부케이싱내에 세탁수를 수용가능하도록 설치되는 터브와, 터브내에 회전가능하도록 설치되는 세탁조를 가진다. 세탁조의 저부영역에는 세탁수류를 형성시킬 수 있도록 펄세이터 등이 구비되며, 터브의 하측에는 세탁조 및 펄세이터를 회전구동시키기 위한 샤프트조립체와, 샤프트조립체에 전달되는 구동력을 단속하는 클러치장치와, 샤프트조립체의 일측에 배치되어 벨트 등에 의해 샤프트조립체에 구동력을 제공하는 전동모터가 구비된다. 최근에는, 이러한 클러치장치 및 벨트 등을 제거하여 전동모터의 회전축에 세탁조의 회전축을 연결한 소위 직결구동식(DIRECT DRIVE) 세탁기가 고안되어 있다.In general, a washing machine has a tubular outer casing, a tub installed to accommodate wash water in the outer casing, and a washing tub rotatably installed in the tub. A pulsator or the like is provided in the bottom region of the washing tub, and a shaft assembly for rotating and driving the washing tub and the pulsator at the bottom of the tub, a clutch device for intermittent driving force transmitted to the shaft assembly, and a shaft Is disposed on one side of the assembly is provided with an electric motor for providing a driving force to the shaft assembly by a belt or the like. Recently, a so-called DIRECT DRIVE washing machine has been devised by removing such a clutch device, a belt and the like and connecting a rotary shaft of a washing tub to a rotary shaft of an electric motor.
도 1은 종래의 세탁기의 종단면도이고, 도 2는 도 1의 터브의 개략적인 평면상태도이다. 이들 도면에 도시된 바와 같이, 세탁기는, 외관을 형성하는 통형상의 외부케이싱(101)과, 외부케이싱(101)의 상부영역을 차단하도록 결합되는 톱커버(103)와, 세탁물이 출입할 수 있도록 톱커버(103)의 개구를 개폐하는 도어(105)를 가진다. 외부케이싱(101)의 내부에는 세탁수를 수용할 수 있도록 터브(107)가 설치되어 있으며, 터브(107)는 거의 원통형상을 가지며 내부에는 세탁물을 수용하는 세탁조(109)가 회전가능하도록 설치되어 있다. 세탁조(109)내 저부영역에는 세탁수류를 형성시킬 수 있도록 복수의 회전날개(111)가 마련되어 있다. 터브(107)의 하측에는 세탁조(109) 및 회전날개(111)를 회전구동시킬 수 있도록 정역회전가능한 전동모터(113)가 설치되어 있다.1 is a longitudinal cross-sectional view of a conventional washing machine, and FIG. 2 is a schematic plan view of the tub of FIG. 1. As shown in these figures, the washing machine includes a tubular outer casing 101 forming an outer appearance, a top cover 103 coupled to block an upper region of the outer casing 101, and laundry can enter and exit. It has a door 105 for opening and closing the opening of the top cover 103 to be. A tub 107 is installed inside the outer casing 101 to accommodate the wash water, and the tub 107 has a substantially cylindrical shape, and a washing tank 109 rotatably containing the laundry is rotatably installed therein. have. A plurality of rotary blades 111 are provided in the bottom region of the washing tank 109 to form washing water flow. The lower side of the tub 107 is provided with an electric motor 113 capable of reverse rotation to drive the washing tank 109 and the rotary blade 111 in rotation.
한편, 외부케이싱(101)의 상부 모서리영역에는 서스펜션로드지지부(115)가 마련되어 있으며, 각 서스펜션로드지지부(115)에는 서스펜션로드(117)가 피벗가능하게 지지되어 있다. 서스펜션로드(117)의 타단에는 상호 작용에 의해 터브(107)를 댐핑가능하게 지지할 수 있도록 댐핑스프링(119) 및 댐핑캡(121)이 마련되어 있다.On the other hand, a suspension rod support portion 115 is provided in the upper edge region of the outer casing 101, and the suspension rod 117 is pivotally supported by each suspension rod support portion 115. The other end of the suspension rod 117 is provided with a damping spring 119 and a damping cap 121 so as to dampen the tub 107 by interaction.
이러한 구성에 의하여, 전동모터(113)가 정역회전을 하게 되면, 전동모터(113)의 회전축에 연결된 세탁조(109) 및 회전날개(111)가 정역회전을 반복하면서 세탁조(109)의 내부에 세탁수류를 형성시켜 세탁작용을 수행하게 된다. 이 때, 터브(107)의 하측에 결합된 전동모터(113)가 구동되면, 터브(107)에는 진동이 발생되며 세탁수류 등에 의해 더욱 가진을 받게 된다.By such a configuration, when the electric motor 113 is in the forward and reverse rotation, the washing tank 109 and the rotary blade 111 connected to the rotating shaft of the electric motor 113 is washed in the washing tank 109 while repeating the forward and reverse rotation. The water flow is formed to perform the washing operation. At this time, when the electric motor 113 coupled to the lower side of the tub 107 is driven, the tub 107 is vibrated and receives more excitation by washing water flow.
그런데, 이러한 종래의 세탁기에 있어서는, 서스펜션로드(117)에 결합된 댐핑스프링(119) 및 댐핑캡(121)에 의해 터브(107)의 진동이 억제될 수 있도록 하고 있으나, 터브(107)가 기립된 상태에서 하부영역만이 지지되고 있어 터브(107)의 상부영역은 하부영역에 비해 상대적으로 진폭이 커지게 되는 문제점이 있다. 또한, 세탁시 세탁조(109)내의 세탁물이 편중되어 배치될 경우에는, 세탁조(109)의 진폭이 과도하게 증가하는 이상진동이 발생되며, 특히, 도 2에 도시된 바와 같이, 외부케이싱(101)의 각 변부의 중앙영역으로의 변위가 커지게 되어 터브(107)와외부케이싱(101)이 상호 충돌하여 충격소음을 유발시키게 되는 문제점이 있다.By the way, in such a conventional washing machine, the vibration of the tub 107 is suppressed by the damping spring 119 and the damping cap 121 coupled to the suspension rod 117, but the tub 107 is standing up. Since only the lower region is supported in the above state, the upper region of the tub 107 has a problem that the amplitude becomes relatively larger than that of the lower region. In addition, when the laundry in the washing tank 109 is arranged in a biased manner, abnormal vibrations in which the amplitude of the washing tank 109 is excessively increased are generated. In particular, as shown in FIG. 2, the outer casing 101 There is a problem that the displacement to the central region of each side of the large tub 107 and the outer casing 101 collide with each other to cause impact noise.
따라서, 본 발명의 목적은, 터브의 진동을 감쇠시킴과 동시에 탈수시 과도한 이상진동을 적절히 완화시킬 수 있는 세탁기를 제공하는 것이다.Accordingly, it is an object of the present invention to provide a washing machine capable of attenuating the vibration of the tub and at the same time appropriately alleviating excessive abnormal vibration during dehydration.
도 1은 종래의 세탁기의 종단면도,1 is a longitudinal sectional view of a conventional washing machine,
도 2는 도 1의 터브의 개략적인 평면상태도,Figure 2 is a schematic plan view of the tub of Figure 1,
도 3은 본 발명의 일 실시예에 따른 세탁기의 종단면도,3 is a longitudinal sectional view of a washing machine according to an embodiment of the present invention;
도 4 및 도 5는 각각 도 3의 동흡진장치영역의 확대사시도 및 평면상태도,4 and 5 are an enlarged perspective view and a planar state diagram of the copper suction device region of FIG. 3, respectively;
도 6은 도 4의 Ⅵ-Ⅵ선에 따른 동흡진장치의 부분확대단면도이다.FIG. 6 is a partially enlarged cross-sectional view of the copper suction device according to line VI-VI of FIG. 4.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1 : 외부케이싱 3 : 터브1: outer casing 3: tub
5 : 세탁조 11 : 서스펜션로드5: washing tank 11: suspension rod
21 : 동흡진장치 23 : 스프링부재21: copper suction device 23: spring member
25 : 질량추 27 : 댐핑튜브25 mass mass 27 damping tube
29 : 관통공29: through hole
상기 목적은, 본 발명에 따라, 통형상을 갖는 외부케이싱과; 상기 외부케이싱내에 세탁수를 수용가능하도록 설치되는 터브와; 상기 터브의 외표면으로부터 상기 외부케이싱측을 향하여 돌출되는 스프링부재와, 상기 스프링부재의 자유단부에 형성되는 질량추를 가지고 상기 터브의 진동을 감쇠시키는 적어도 하나의 동흡진장치를 포함하는 것을 특징으로 하는 세탁기에 의해 달성된다.The above object is, according to the present invention, the outer casing having a tubular shape; A tub installed to accommodate the wash water in the outer casing; And a spring member protruding from the outer surface of the tub toward the outer casing side, and at least one copper suction device having a mass weight formed at a free end of the spring member to damp vibration of the tub. Is achieved by a washing machine.
여기서, 상기 스프링부재는 코일형상을 가지며 상기 터브로부터 상기 질량추측으로 향할수록 구경이 감소하는 것이 바람직하다.Here, it is preferable that the spring member has a coil shape and the diameter decreases from the tub toward the mass estimation side.
또한, 상기 질량추는 상기 외부케이싱측을 향하여 중앙영역이 돌출되게 만곡된 것이 효과적이다.In addition, it is effective that the mass weight is curved such that a central region protrudes toward the outer casing side.
상기 동흡진장치는 상기 스프링부재의 돌출방향을 따라 신축가능하게 주름형상을 가지고 상기 스프링부재를 둘러 싸도록 배치되는 중공상의 댐핑튜브를 더 포함하도록 구성하는 것이 바람직하다.The copper suction device may be configured to further include a hollow damping tube that is arranged to surround the spring member and has a pleat shape elastically stretchable along the protruding direction of the spring member.
이하에서는 첨부된 도면을 참조하여 본 발명에 대하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.
도 3은 본 발명의 일 실시예에 따른 세탁기의 종단면도이고, 도 4 및 도 5는 각각 도 3의 동흡진장치영역의 확대사시도 및 평면상태도이며, 도 6은 도 4의 Ⅵ-Ⅵ선에 따른 동흡진장치의 부분확대단면도이다. 이들 도면에 도시된 바와 같이, 본 세탁기도 종래의 세탁기와 마찬가지로, 통형상의 외부케이싱(1)과, 외부케이싱(1)의 내부에 설치되는 터브(3)와, 터브(3)의 내부에 회전가능하도록 설치되는 세탁조(5)를 가진다. 세탁조(5)내 저부영역에는 복수의 회전날개(7)가 형성되어 있으며, 터브(3)의 하측에는 세탁조(5) 및 회전날개(7)를 회전시킬 수 있도록 정역회전가능한 전동모터(9)가 구비되어 있다.3 is a longitudinal cross-sectional view of the washing machine according to an embodiment of the present invention, Figures 4 and 5 are an enlarged perspective view and a plan view of the copper suction device region of Figure 3, respectively, Figure 6 is a line VI-VI of FIG. Partial enlarged cross-sectional view of the copper suction device according to the present invention. As shown in these figures, this washing machine also has a tubular outer casing 1, a tub 3 provided inside the outer casing 1, and a tub 3 inside the tub like the conventional washing machine. It has a washing tub 5 installed to be rotatable. A plurality of rotary blades 7 are formed in the bottom region of the washing tank 5, and an electric motor 9 capable of forward and reverse rotation to rotate the washing tank 5 and the rotating blade 7 below the tub 3 is provided. Is provided.
외부케이싱(1)의 상부 각 모서리영역에는 서스펜션로드(11)의 일단이 피벗가능하도록 지지되어 있으며, 서스펜션로드(11)의 타단에는 댐핑스프링(13) 및 댐핑캡(15)에 의해 터브(3)가 댐핑가능하도록 지지되어 있다.One end of the suspension rod 11 is pivotally supported at each upper corner region of the outer casing 1, and the other end of the suspension rod 11 is connected to the tub 3 by a damping spring 13 and a damping cap 15. ) Is supported to be dampable.
한편, 터브(3)의 상부영역에는 터브(3)의 진동을 억제시킬 수 있도록 복수의 동흡진장치(21)가 설치되며, 이들은 터브(3)의 둘레방향을 따라 외부케이싱(1)의 각 변부 중앙영역에 대응하여 등각도간격으로 상호 이격 배치되어 있다. 여기서, 동흡진장치(21)는 터브(3)의 진동유형별로 터브(3)의 상하방향을 따라 상호 다른 높이차를 가지도록 설치될 수 있으며, 본 실시예에서는, 터브(3)의 높이(H)에 대해 저부면으로부터 3/4H지점에 일률적으로 동흡진장치(21)를 수용지지할 수 있도록 상향개구된 수용그루브가 형성된 포켓부재(33)를 마련하여 동흡진장치(21)를 수용지지하도록 구성하고 있다.On the other hand, in the upper region of the tub 3, a plurality of copper suction device 21 is provided to suppress the vibration of the tub 3, these are each of the outer casing 1 along the circumferential direction of the tub (3) It is arranged to be spaced apart from each other at equiangular intervals corresponding to the central portion of the edge. Here, the copper suction device 21 may be installed to have a different height difference along the vertical direction of the tub 3 for each vibration type of the tub 3, in this embodiment, the height (3) of the tub 3 H) provides the pocket member 33 formed with a receiving groove upwardly opened so as to uniformly support the copper suction device 21 at a point 3 / 4H from the bottom surface to accommodate the copper suction device 21. It is configured to
각 동흡진장치(21)는, 터브(3)의 외표면으로부터 반경방향을 따라 상호 나란하게 돌출되는 한 쌍의 스프링부재(23)와, 터브(3)의 진동유형에 대응하여 소정의 질량을 가지도록 형성되어 스프링부재(23)의 자유단에 고정결합되는 질량추(25)를가진다.Each of the copper suction devices 21 has a predetermined mass corresponding to the vibration type of the tub 3 and the pair of spring members 23 protruding parallel to each other along the radial direction from the outer surface of the tub 3. It is formed to have a mass weight 25 is fixed to the free end of the spring member 23.
스프링부재(23)는 축선방향을 따라 스프링상수가 감소될 수 있도록 구경이 감소되는 코일형상으로 형성되어 있다. 스프링부재(23)의 대구경측단은 터브(3)의 외표면측을 향하도록 설치되어 있으며, 소구경측단에는 질량추(25)가 결합되어 있다.The spring member 23 is formed in a coil shape in which the diameter is reduced so that the spring constant can be reduced along the axial direction. The large diameter side end of the spring member 23 is provided to face the outer surface side of the tub 3, and the mass weight 25 is coupled to the small diameter side end.
질량추(25)는 고무부재 또는 합성고무부재 등의 탄성부재를 이용하여 종단면형상이 거의 타원형상을 이루는 타원기둥형상을 가지도록 형성되며, 외부케이싱(1)측 표면은 외부케이싱(1)과의 접촉시 하중이 특정부위로 치우치지 않도록 중앙영역이 돌출되어 있다.The mass weight 25 is formed using an elastic member such as a rubber member or a synthetic rubber member to have an elliptical column shape in which the longitudinal cross-section is almost elliptical, and the outer casing (1) side surface is formed with the outer casing (1). The central area protrudes so that the load does not deviate to a specific part when contacting.
질량추(25)와 터브(3)의 사이에는 터브(3)의 반경방향을 따라 신축가능한 댐핑튜브(27)가 형성되어 있다. 댐핑튜브(27)는 주름형상을 가지는 중공체로 형성되며, 축선방향을 따라 축소되면서 댐핑기능을 수행할 수 있도록 공기의 출입을 위한 다수의 관통공(29)이 형성되어 있다. 댐핑튜브(27)에는 터브(3)의 외표면에 형성된 포켓부재(33)의 수용그루브(35)내에 수용되어 질량추(25) 및 스프링부재(23)를 고정유지시킬 수 있도록 고정단부(31)가 형성되어 있다.Between the mass weight 25 and the tub 3, a damping tube 27 that is stretchable along the radial direction of the tub 3 is formed. The damping tube 27 is formed of a hollow body having a corrugated shape, and a plurality of through-holes 29 are formed for entering and exiting air so as to perform a damping function while being reduced in the axial direction. The damping tube 27 is accommodated in the receiving groove 35 of the pocket member 33 formed on the outer surface of the tub 3 so as to hold the mass weight 25 and the spring member 23 fixed to the end 31. ) Is formed.
이러한 구성에 의하여, 세탁행정시 전동모터(9)가 정역회전구동함에 따라 전동모터(9)의 회전축에 연결된 세탁조(5) 및 회전날개(7)는 정역회전하게 되고, 이에 의해 세탁조(5)의 내부에는 세탁수류가 형성되어 세탁작용을 수행하게 된다. 이 때, 전동모터(9)의 구동시 발생된 진동에 의해 터브(3)는 공진을 하게 되며, 각 동흡진장치(21)는 스프링부재(23)와 질량추(25)의 상호 작용에 의해 터브(3)의 진동에너지를 감쇠시키게 된다. 즉, 터브(3)의 진동에너지는 스프링부재(23)를 매개로 질량추(25)를 수평운동시키게 됨으로써 일부가 소멸됨으로써 전체적으로 감쇠된다.By this configuration, the washing tank 5 and the rotary blades 7 connected to the rotating shaft of the electric motor 9 are rotated forward and backward as the electric motor 9 is driven forward and reverse during the washing operation, thereby washing the washing tank 5 The washing water is formed inside the to perform the washing operation. At this time, the tub 3 is resonated by the vibration generated when the electric motor 9 is driven, and each of the copper vibration absorbers 21 is caused by the interaction of the spring member 23 and the mass weight 25. The vibration energy of the tub 3 is attenuated. That is, the vibration energy of the tub 3 is attenuated as a part of the mass due to the horizontal movement of the mass weight 25 through the spring member 23 to be extinguished.
한편, 터브(3)는, 세탁수 및 세탁물의 량, 세탁수류의 상태 등에 의해 다양한 주파수대역에서 진동하게 되며, 저주파수대역의 진동은 각 동흡진장치(21)의 스프링부재(23)의 대구경부측의 작용으로 진동에너지가 감쇠되며, 상대적으로 고주파수대역의 진동은 소구경부측의 작용으로 진동에너지가 감쇠됨으로써 억제된다.On the other hand, the tub 3 is vibrated in various frequency bands by the amount of wash water and laundry, the state of the wash water flow, etc., the vibration of the low frequency band is large diameter portion of the spring member 23 of each of the copper suction device 21 The vibration energy is attenuated by the action of the side, and the vibration of the high frequency band is suppressed by the vibration energy is attenuated by the action of the small diameter part.
탈수행정시, 세탁조(5)내에 수용된 세탁물이 편중되어 배치될 경우, 세탁조는 회전초기에 반경방향을 따라 진폭이 과도하게 되는 이상진동을 일으키게 된다. 이 때, 터브(3)의 외측에 각각 배치된 동흡진장치(21)중 터브(3)가 축선에 대해 기울어지는 측에 배치된 동흡진장치(21)의 질량추(25)는 외부케이싱(1)의 해당 내벽과 충격적으로 접촉하게 된다.In the dehydration administration, when the laundry contained in the washing tank 5 is arranged in a biased manner, the washing tank causes abnormal vibrations of excessive amplitude along the radial direction at the beginning of rotation. At this time, the mass weight 25 of the copper suction device 21 disposed on the side where the tub 3 is inclined with respect to the axis among the copper suction devices 21 disposed on the outside of the tub 3 is the outer casing ( It comes in shock contact with the corresponding inner wall of 1).
질량추(25)의 배면에 형성된 댐핑튜브(27)는, 내부의 공기가 관통공(29)을 통하여 외부로 배출되면서 수축되어 충격에너지를 완화시키는 댐핑작용을 수행하게 되며, 수축된 댐핑튜브(27)는 스프링부재(23)의 탄성력에 의해 다시 신장하여 복귀된다. 터브(3)는 이와 같은 각 동흡진장치(21)의 댐핑작용에 의해 회전초기의 과도이상진동이 완화되면서 상대적으로 진폭이 작은 정상적인 진동상태로 수렴하게 된다. 정상진동시에는 전술한 바와 같이, 스프링부재(23) 및 질량추(25)의 상호 작용에 의해 진동에너지가 감쇠되고, 터브(3)의 진동에 기인한 진동소음도 감쇠된다.The damping tube 27 formed on the rear surface of the mass weight 25 is contracted as the air inside is discharged to the outside through the through hole 29 to perform a damping action to alleviate the impact energy, and the contracted damping tube ( 27 is extended again by the elastic force of the spring member 23 and returned. The tub 3 converges to a normal vibration state with a relatively small amplitude while the transient abnormal vibration of the initial rotation is alleviated by the damping action of each of the copper vibration absorbing devices 21. During the normal vibration, as described above, the vibration energy is attenuated by the interaction of the spring member 23 and the mass weight 25, and the vibration noise caused by the vibration of the tub 3 is also attenuated.
전술 및 도시한 실시예에서는, 세탁조의 회전축에 전동모터의 회전축이 연결된 소위 직결구동식 세탁기의 터브에 동흡진장치를 설치한 경우를 예를 들어 설명하고 있지만, 세탁조의 회전축과 평행하게 배치된 회전축을 가지고 벨트 등의 전동수단에 의해 세탁조를 회전구동시키는 일반적인 세탁기의 터브에 전술한 동흡진장치를 설치할 수 있음은 물론이다.In the above-described and illustrated embodiments, the case where the copper suction device is installed in the tub of the so-called direct drive type washing machine in which the rotating shaft of the electric motor is connected to the rotating shaft of the washing tank is described as an example, but the rotating shaft is disposed parallel to the rotating shaft of the washing tank. Of course, the above-described copper suction device can be installed in the tub of the general washing machine for rotating the washing tank by a transmission means such as a belt.
그리고, 전술 및 도시한 실시예에서는, 각 동흡진장치를 축선방향에 상호 대칭되는 복수쌍으로 구성하여 설명하고 있지만, 복수개를 터브의 둘레방향을 따라 상호 등각도 간격을 가지고 배치되도록 구성할 수도 있으며, 각 동흡진장치의 스프링부재를 한 쌍으로 구성하여 설명하고 있지만, 개수는 적절히 선택할 수 있다.In addition, in the above-described and illustrated embodiments, each copper suction device is described by configuring a plurality of pairs symmetrical to each other in the axial direction, but the plurality may be configured to be arranged at equal angle intervals along the circumferential direction of the tub. Although the spring members of each copper suction device are described as a pair, the number can be appropriately selected.
이상 설명한 바와 같이, 본 발명에 따르면, 터브의 진동을 감쇠시킬 수 있는 세탁기가 제공된다. 또한, 본 발명에 따른 세탁기는, 터브의 진동을 감쇠시켜 진동에 기인한 소음을 감쇠시킬 수 있을 뿐만 아니라, 탈수행정시 세탁조의 회전초기에 세탁물의 편재에 기인한 터브의 과도한 이상진동을 적절히 완화시킬 수 있다.As described above, according to the present invention, a washing machine capable of damping vibration of a tub is provided. In addition, the washing machine according to the present invention not only attenuates the vibration of the tub to attenuate the noise caused by the vibration, but also appropriately alleviates excessive abnormal vibration of the tub caused by the ubiquity of the laundry in the initial rotation of the washing tank during the dehydration operation. You can.
Claims (4)
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| KR1019990036894A KR100332770B1 (en) | 1999-09-01 | 1999-09-01 | Washing machine |
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| KR1019990036894A KR100332770B1 (en) | 1999-09-01 | 1999-09-01 | Washing machine |
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| CN104195790B (en) * | 2014-09-02 | 2016-06-29 | 惠而浦（中国）股份有限公司 | A kind of automatic washing machine vibration alarming system |
| WO2019019553A1 (en) * | 2017-07-28 | 2019-01-31 | 青岛海尔洗衣机有限公司 | Washing machine damping structure, design method, transverse shock-absorbing apparatus, and washing machine |
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