KR20000008337A - Draining device for washing machine - Google Patents

Draining device for washing machine Download PDF

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Publication number
KR20000008337A
KR20000008337A KR1019980028105A KR19980028105A KR20000008337A KR 20000008337 A KR20000008337 A KR 20000008337A KR 1019980028105 A KR1019980028105 A KR 1019980028105A KR 19980028105 A KR19980028105 A KR 19980028105A KR 20000008337 A KR20000008337 A KR 20000008337A
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KR
South Korea
Prior art keywords
cam
actuator
spring
opening
link
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KR1019980028105A
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Korean (ko)
Inventor
방종철
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구자홍
엘지전자 주식회사
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Priority to KR1019980028105A priority Critical patent/KR20000008337A/en
Publication of KR20000008337A publication Critical patent/KR20000008337A/en

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Classifications

    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/202—Externally-operated valves mounted in or on the actuator
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

PURPOSE: An opening and closing device is provided to reduce the number of components spent in the opening and closing of a draining valve, and to simplify the construction of the open and close device thereof. CONSTITUTION: The opening and closing device of a draining valve for a washing machine formed to close or to open a valve entrance by a stroke movement of an open and close end according to an expansion of a bellows contains: an actuator(21); a link(25) to delivery a rotating force to a facing structure; a driving body(27) to extend and to contract a spring(29) according to the rotating direction of the link by combining a variable shaft through the link of a cam and a slide groove(28).

Description

세탁기의 배수장치Drainage of washing machine

본 발명은 세탁기의 배수장치에 관한 것으로 특히, 세탁기 배수밸브를 개폐하는 동기모터를 대체하는 구동원을 제공하여 배수밸브 구조를 단순화 시키는 것이다.The present invention relates to a drainage device of a washing machine, and in particular, to simplify the drain valve structure by providing a drive source to replace the synchronous motor for opening and closing the washing machine drain valve.

세탁기는 급수와 세탁 및 헹굼,배수,탈수행정 등을 설정 조건에 따라 순차적으로 수행한다. 배수 및 탈수행정에서 세탁조안의 물은 배수밸브를 통해 밖으로 배출시키며, 다른 행정에서 물의 배수는 차단 시키는데, 배수제어는 배수밸브 개폐를 단속하여 이루어진다.The washing machine sequentially performs water supply, washing and rinsing, draining, and dehydration stroke according to setting conditions. In the drainage and dehydration stroke, the water in the washing tank is discharged out through the drain valve, and in other strokes, the drainage of the water is blocked, and the drainage control is controlled by opening and closing the drain valve.

종래 배수장치는 도 1과 같이 세탁기본체(1)의 아래쪽 방향에 배수밸브(2)와 그 개폐장치(3)를 조립하여 구성되며, 배수밸브(2)의 입구(4)측을 세탁조(5)에 연결 시키고, 상기 개폐장치를 통해 출구(6)측 유로를 개폐하는 구조로써, 상기 개폐장치는 도 2와 같이 밸브의 입구(4)와 출구(6)가 만나는 공간에 벨로우즈(7)를 설치하고, 벨로우즈(7) 안으로는 다시 압축 스프링(8)을 장착하며, 동기모터(9)의 구동력을 출력축(10)과 캠(11)을 통해 압축 스프링(8) 및 벨로우즈(7)에 전달시키기 위해 동기모터(9)에 출력축(10)을 연결 하였으며, 상기 캠(11)을 통해 출력축(10)의 회전운동을 직선운동으로 변환시켜, 벨로우즈(7) 단부상의 개폐단(12)을 직선 스트로크 운동으로 유도하여 이것에 의해 입구(4)와 출구(6)를 이어주는 공간을 상통 시키거나 차단하도록 되어있다.Conventional drainage device is configured by assembling the drain valve 2 and its opening and closing device (3) in the downward direction of the washing machine body 1 as shown in Figure 1, the inlet (4) side of the drain valve (2) washing tank (5) ) To open and close the outlet 6 side flow path through the opening and closing device, and the opening and closing device has a bellows 7 at a space where the inlet 4 and the outlet 6 of the valve meet as shown in FIG. 2. And a compression spring 8 again into the bellows 7 and transmitting the driving force of the synchronous motor 9 to the compression spring 8 and the bellows 7 via the output shaft 10 and the cam 11. The output shaft 10 is connected to the synchronous motor 9 in order to convert the rotational movement of the output shaft 10 into a linear movement through the cam 11, thereby straightening the opening / closing end 12 on the bellows 7 end. Induced by a stroke movement, this allows the space connecting the inlet 4 and the outlet 6 to pass or block.

배수행정에서 상기 개폐장치의 동작은, 동기모터(9)에 전원(교류)이 인가되면, 동기모터(9)가 회전한다. 이때 출력축(10)에 연결된 캠(11)을 통하여 동기모터(9)의 회전운동이 직선운동으로 바뀌면서 출력축(10)에 연결된 스프링(8)을 당긴다. 스프링(8)은 벨로우즈(7)와 연결되어 있으므로 동기모터(9)의 동작이 벨로우즈(7)로 전달된다. 벨로우즈(7)의 수축방향은 스프링(8)을 당기는 방향이며, 결국 입구(4)를 가리고 있는 개폐단(12)이 입구(4)를 열어 세탁조안의 물을 출구(6)를 통해 배출 시킨다.In the operation of the opening and closing device in the drainage stroke, when a power source (alternating current) is applied to the synchronous motor 9, the synchronous motor 9 rotates. At this time, the rotational motion of the synchronous motor 9 is changed into a linear motion through the cam 11 connected to the output shaft 10 and pulls the spring 8 connected to the output shaft 10. Since the spring 8 is connected to the bellows 7, the operation of the synchronous motor 9 is transmitted to the bellows 7. The contraction direction of the bellows 7 is the direction in which the spring 8 is pulled, and the opening / closing end 12 covering the inlet 4 opens the inlet 4 to discharge the water in the washing tank through the outlet 6.

배수가 끝나면 컨트롤러 제어신호에 의해 동기모터(9)로 인가되던 전원 공급이 끊기고 그러면서 스프링 복원력에 의해 스프링(8)은 수축되고, 벨로우즈(7)는 다시 신장되어 개폐단(12)이 입구를 가린다.When the drainage is completed, the power supply applied to the synchronous motor 9 is cut off by the controller control signal, and the spring 8 is contracted by the spring restoring force, and the bellows 7 is extended again so that the opening and closing end 12 covers the inlet. .

그러나 상기 개폐장치의 구동원인 동기모터(9)는 출력축(10)을 당기기 위해 회전력을 발생 시키는 모터코일과 마그네트, 회전수 조절을 위해 수개의 기어의 조합으로 이루어지는 기어군 등으로 이루어져 세탁기에서 타 부품과 비교하여 차지하는 공간이 크고 동기모터의 단가가 높아 제작비용을 상승 시키는 문제점이 있었다.However, the synchronous motor 9, which is the driving source of the opening and closing device, includes a motor coil and a magnet for generating rotational force to pull the output shaft 10, a gear group including a combination of several gears for rotational speed adjustment, and the like. Compared with the large space occupied and the unit price of the synchronous motor has a problem of increasing the production cost.

동기모터 적용에 따른 문제점을 개선하기 위하여 국내 특허 공고번호97-2319호에 소개된 "세탁기의 배수밸브 개폐장치"는 동기모터를 사용하지 않는 배수밸브 개폐장치로 제시 되었으나, 동기모터 대체에 따른 이득을 제외하면, 기구적으로 지나치게 복잡한 문제점이 있다.In order to improve the problems caused by the application of the synchronous motor, the "Drainage valve opening and closing device of the washing machine" introduced in the domestic patent publication No. 97-2319 has been proposed as a drain valve opening and closing device that does not use the synchronous motor, Except for this, there are mechanically overly complex problems.

본 발명은 세탁기의 배수밸브를 조건에 따라 개폐하는 개폐장치의 구성을 변경하여 배수밸브 개폐에 소요되는 부품수를 줄이고, 그로부터 개폐장치의 구성을 단순화 시키는 것이다.The present invention changes the configuration of the opening and closing device for opening and closing the drain valve of the washing machine according to the conditions to reduce the number of parts required for opening and closing the drain valve, thereby simplifying the configuration of the opening and closing device.

이를위해 본 발명은 배수밸브 입구와 출구를 이어주는 공간에 벨로우즈가 장착되고, 상기 벨로우즈안에 스프링이 탄지되며, 상기 스프링을 캠을 통해 구동원에 연결시켜 캠의 구동력 매개로 스프링의 인장/수축을 유도하여 벨로우즈 신축에 따른 개폐단의 스트로크 운동으로 밸브 입구를 막거나 열어주도록 구성된 세탁기의 배수밸브 개폐장치에 있어서, 구동원인 엑츄에이터와, 상기 엑츄에이터의 로드에 연접하는 면을 가지고, 로드의 선운동에 의해 회전하여 상대 구조물에 회전력을 전달하는 링크를 포함하는 캠과, 상기 캠의 링크와 슬라이드홈을 통해 가변축으로 연결되어 링크 회전 방향에 따라 스프링을 인장/수축 시키고, 그 여유율을 제공하는 가동체를 포함하는 배수밸브 개폐장치를 구성한 것이다.To this end, the present invention is equipped with a bellows in the space connecting the drain valve inlet and outlet, the spring is supported in the bellows, by connecting the spring to the drive source through the cam to induce tension / contraction of the spring by the driving force of the cam In the drain valve opening and closing device of the washing machine configured to block or open the valve inlet by the stroke movement of the opening and closing end according to the bellows expansion and contraction, it has an actuator as a driving source and a surface in contact with the rod of the actuator, and rotates by the linear motion of the rod A cam including a link for transmitting rotational force to a mating structure, and a movable body connected to the variable shaft through the link and the slide groove of the cam to tension / shrink the spring according to the link rotation direction and provide a margin thereof. The drain valve opening and closing device is configured.

도 1은 세탁기 배수장치 개략도.1 is a schematic view of a washing machine drainage system.

도 2는 종래 배수밸브 개폐장치 요부 단면도.Figure 2 is a sectional view of the main drain valve opening and closing device.

도 3은 본 발명에 따른 배수장치 요부 단면도.3 is a cross-sectional view of the drainage main part according to the present invention.

도 4는 본 발명에 따른 배수장치 동작도.Figure 4 is a drainage operation diagram according to the present invention.

도 5는 엑츄에이터 단면도.5 is an actuator cross-sectional view.

도 6은 도 5의 동작도.6 is an operation diagram of FIG.

*** 도면의 주요 부분에 대한 부호의 설명 ****** Explanation of symbols for the main parts of the drawing ***

2:배수밸브 4:밸브입구2: drain valve 4: valve inlet

6:밸브출구 7:벨로우즈6: valve outlet 7: bellows

8:스프링 12:개폐단8: Spring 12: opening and closing

20:로드 21:엑츄에이터20: Rod 21: Actuator

22:접촉면 23:캠22: contact surface 23: cam

24:지지축 25:링크24: support shaft 25: link

26:핀 27:가동체26: Pin 27: movable body

28:슬라이드홈 29:스프링28: slide groove 29: spring

30:왁스(WAX) 31:바디30: Wax 31: Body

32:히터32: heater

도 3은 본 발명의 실시예에 의한 배수장치의 평면 개략도 이다. 배수밸브(2)가 갖는 입구(4)나 출구(6) 그리고 세탁조에 배수밸브를 연결하는 부분, 또는 배수밸브의 입구와 출구 공간에 벨로우즈(7)를 장착하고 스프링(8)의 압축/신장 변화를 유도하여 벨로우즈(7)의 개폐단(12)을 위치 이동 시키는 구성체계는 동기모터를 적용한 도 2의 개폐장치에 관련된다.3 is a schematic plan view of the drainage system according to the embodiment of the present invention. A bellows (7) is installed in the inlet (4) or the outlet (6) of the drain valve (2) and the part connecting the drain valve to the washing tank, or the inlet and outlet spaces of the drain valve and the compression / extension of the spring (8) The arrangement for locating the open / close end 12 of the bellows 7 by inducing a change is related to the open / close device of FIG. 2 to which a synchronous motor is applied.

주요부분은 작동 로드(20)를 진퇴 시키는 엑츄에이터(21), 로드(20)에 접촉면(22)을 통해 연접되어 회전 운동으로 전환되는 캠(23), 이 캠(23)을 회전 가능하게 지지하는 지지축(24), 지지축(24) 또는 캠(23)에 연동시켜 캠(23)과 연동되는 링크(25), 그리고 상기 링크(25)에 핀(26) 결합으로 조인트되어 스프링(8)에 연결시킨 가동체(27), 상기 핀(26)을 중심으로 가동체(27)의 직선 운동을 유도하기 위해 핀(26)을 가변축상으로 안내하는 가동체(27)측 슬라이드홈(28)으로 이루어진다.The main part is an actuator 21 for advancing and retracting the operating rod 20, a cam 23 connected to the rod 20 through a contact surface 22, and converted into a rotational movement, and rotatably supporting the cam 23. A link 25 coupled to the support shaft 24, the support shaft 24, or the cam 23 to be interlocked with the cam 23, and a pin 26 coupled to the link 25 to the spring 8. A movable groove 27 connected to the movable body 27 and a slide groove 28 on the movable body 27 for guiding the pins 26 on a variable shaft so as to induce a linear movement of the movable body 27 about the pins 26. Is done.

상기 엑츄에이터(21)는 도 5와 같이 로드(20),스프링(29),왁스(30) 및 왁스(30)를 충진 시키는 통체로된 바디(31), 전원을 공급받아 열을 발생 시키는 히터(32)로 이루어지는 서모엑츄에이터(Thermoactuator)와 같은 것이다.The actuator 21 is a tubular body 31 filling the rod 20, the spring 29, the wax 30 and the wax 30, as shown in Figure 5, the heater to generate heat by receiving power ( 32) is the same as the thermoactuator (Thermoactuator).

본 발명에 의한 배수밸브 개폐는 도 3의 초기상태, 도 4의 동작상태와 같이 엑츄에이터 및 액션캠의 위치에 따라 나타난다.The opening and closing of the drain valve according to the present invention is shown according to the positions of the actuator and the action cam as in the initial state of FIG. 3 and the operating state of FIG. 4.

배수동작은 세탁조에 물이 급수되어 세탁 또는 헹굼 동작이 완료되면, 세탁기의 컨트롤러 신호에 의해 엑츄에이터(21)에 전원이 인가되어 엑츄에이터(21)의 로드(20)가 밀려 나오면서 캠(23)을 지지축(24)을 중심으로 회전 시킨다.(도 4)In the drainage operation, when water is supplied to the washing tank and the washing or rinsing operation is completed, power is applied to the actuator 21 by a controller signal of the washing machine, and the rod 20 of the actuator 21 is pushed out to support the cam 23. Rotate around the axis 24 (Fig. 4).

캠(23)의 회전은 곧 링크(25)를 매개로 가동체(27)에 전달되어 가동체(27)가 직선운동을 하게되며, 가동체(27)가 스프링(29)에 당김력을 제공하는 조건일 때, 벨로우즈(7)는 수축되면서 개폐단(12)을 입구(4)로 부터 떨어뜨려 배수를 진행 시킨다. 이때, 엑츄에이터(21)는 배수종료 시점까지 로드(20)를 방출 시킨 상태를 유지하여 연속적으로 캠(23)을 밀어준다.The rotation of the cam 23 is soon transmitted to the movable body 27 via the link 25 so that the movable body 27 makes a linear motion, and the movable body 27 provides a pulling force to the spring 29. When the condition is, the bellows 7 is contracted while the opening and closing end 12 is dropped from the inlet (4) to advance the drainage. At this time, the actuator 21 continuously pushes the cam 23 while maintaining the state in which the rod 20 is discharged until the end of drainage.

배수 종료가 감지되면 컨트롤러 신호에 의해 엑츄에이터(21)에 인가되는 전원이 끊어지고, 연속적으로 스프링(29)의 복원력에 따라 가동체(27),링크(25),캠(23)이 초기 위치로 리턴되고, 로드(20)는 초기상태로 복귀된다.(도 3)When the drain end is detected, the power applied to the actuator 21 is cut off by the controller signal, and the movable body 27, the link 25, and the cam 23 move to the initial position continuously according to the restoring force of the spring 29. Is returned, and the rod 20 returns to the initial state (FIG. 3).

캠(23)을 구동 시키는 엑츄에이터(21)는 서모엑츄에이터가 적당하다. 서모엑츄에이터는 히터(32)에 전원이 공급되면 열이 발생하게 되고, 이때 발생된 열로 인해 바디(31)의 내부 왁스(30)가 팽창한다. 이때 왁스(30)의 팽창력에 의해 로드(20)가 밀려 나오며, 복귀는 히터(32) 전원을 차단하면 왁스(30)가 수축되고, 수축되었던 스프링(29) 복원력에 의해 로드(20)가 바디(31)안으로 들어가게 되어있어 다른 엑츄에이터와 비교할 때, 로드 방출력이 크지 않고 안정되며, 방출속도를 저소음 상태로 조절할 수 있어 세탁기 배수밸브 개폐 구동원으로 적합하다.As for the actuator 21 which drives the cam 23, a thermo actuator is suitable. The thermoactuator generates heat when power is supplied to the heater 32, and the internal wax 30 of the body 31 expands due to the generated heat. At this time, the rod 20 is pushed out by the expansion force of the wax 30, and the return is cut off when the heater 32 is cut off, and the rod 30 is contracted by the restoring force of the spring 29 that has been contracted. As it enters into (31), compared with other actuators, the load discharge force is not large and stable, and the discharge speed can be adjusted in a low noise state, making it suitable for driving the drain valve opening and closing of the washing machine.

그러나 엑츄에이터의 형식에 관계없이 밸브 개폐 구동원을 로드 엑츄에이터로 함으로써 캠에 연동되는 다이렉팅 방식의 개폐장치 구성이 가능하다. 또한 이러한 엑츄에이터 구동방식은 동기모터 구동방식에 비해 구동 반경이 작고, 메커니즘이 차지하는 점유공간이 크지않은 특징을 갖게된다.However, regardless of the type of actuator, by using the valve opening and closing drive source as the rod actuator, it is possible to configure a direct-opening switching device that is linked to the cam. In addition, the actuator driving method has a smaller driving radius and less space occupied by the mechanism than the synchronous motor driving method.

본 발명은 세탁기 배수장치에 적용되는 밸브 개폐장치의 단순화를 촉진시켜 전체 공간에서 차지하는 밸브개폐장치의 공간 점유율을 낮춰 세탁기 부품 배치 및 설계 자유도를 크게하고, 간단화된 구성을 통해 점검 및 사후 관리에 기여할 뿐만아니라, 소요 부품수를 줄여 생산원가를 절감시키는 효과가 있다.The present invention promotes the simplification of the valve opening and closing device applied to the drainage of the washing machine to reduce the space occupancy of the valve opening and closing device occupies the entire space to increase the degree of freedom of the washing machine parts arrangement and design, and to simplify the inspection and follow-up management through the simplified configuration. In addition to reducing the number of parts required, production costs can be reduced.

또한 고가의 동기모터를 대체 함으로써 일반적으로 얻을 수 있는 효과가 크다.Also, by replacing expensive synchronous motors, the general effect can be obtained.

Claims (2)

배수밸브 입구와 출구를 이어주는 공간에 벨로우즈가 장착되고, 상기 벨로우즈안에 스프링이 탄지되며, 상기 스프링을 캠을 통해 구동원에 연결시켜 캠의 구동력 매개로 스프링의 인장/수축을 유도하여 벨로우즈 신축에 따른 개폐단의 스트로크 운동으로 밸브 입구를 막거나 열어 주도록 구성된 세탁기의 배수밸브 개폐장치에 있어서,The bellows is mounted in the space connecting the drain valve inlet and the outlet, and the spring is supported in the bellows, and the spring is connected to the driving source through the cam to induce tension / contraction of the spring by the driving force of the cam to expand the bellows. In the drain valve opening and closing device of the washing machine configured to block or open the valve inlet by the stroke movement of the closed end, 구동원을 엑츄에이터로 하고,The drive source as the actuator, 상기 엑츄에이터의 로드에 연접하는 접촉면을 가지고, 로드의 직선운동에 의해 회전하여 상대 구조물에 회전력을 전달하는 링크를 포함하는 캠과,A cam having a contact surface in contact with the rod of the actuator, the cam including a link that rotates by a linear movement of the rod to transmit rotational force to the mating structure; 상기 캠의 링크와 슬라이드홈을 통해 가변축으로 연결되어 링크의 회전 방향에 따라 스프링을 인장/수축 시키는 가동체를 포함하는 세탁기의 배수밸브 개폐장치.And a movable body connected to the variable shaft through the link and the slide groove of the cam to tension / contract the spring according to the rotational direction of the link. 제 1 항에 있어서,The method of claim 1, 상기 엑츄에이터가 히터의 발열을 통해 충진물을 수축 팽창 시켜 발진되는 서모엑츄에이터(Thermoactuator)인 것을 특징으로 하는 세탁기의 배수밸브 개폐장치.The actuator is a drain valve opening and closing device of the washing machine, characterized in that the thermo-actuator (Thermoactuator) is oscillated by shrinking and expanding the filling through the heating of the heater.
KR1019980028105A 1998-07-13 1998-07-13 Draining device for washing machine KR20000008337A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100460589B1 (en) * 2002-05-21 2004-12-09 삼성전자주식회사 Washing Machine Having Drain Valve Operating Apparatus
CN105544151A (en) * 2016-01-28 2016-05-04 高本东 Automatically-controlled water drainage device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100460589B1 (en) * 2002-05-21 2004-12-09 삼성전자주식회사 Washing Machine Having Drain Valve Operating Apparatus
CN105544151A (en) * 2016-01-28 2016-05-04 高本东 Automatically-controlled water drainage device

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