KR940008600B1 - Dehydration time control method of washer - Google Patents
Dehydration time control method of washer Download PDFInfo
- Publication number
- KR940008600B1 KR940008600B1 KR1019910025033A KR910025033A KR940008600B1 KR 940008600 B1 KR940008600 B1 KR 940008600B1 KR 1019910025033 A KR1019910025033 A KR 1019910025033A KR 910025033 A KR910025033 A KR 910025033A KR 940008600 B1 KR940008600 B1 KR 940008600B1
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- South Korea
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- dehydration
- time
- light transmittance
- detection unit
- dehydration time
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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
- 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
- D06F33/44—Control of the operating time, e.g. reduction of overall operating time
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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
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
- D06F35/007—Methods for washing, rinsing or spin-drying for spin-drying only
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
제1도는 본 발명의 세탁기의 탈수시간 제어시스템 구성도.1 is a block diagram of the dehydration time control system of the washing machine of the present invention.
제2도는 제1도를 적용한 세탁기의 개략 구성도.2 is a schematic configuration diagram of a washing machine to which the first diagram is applied.
제3도는 제2도 빛투과량 검출부의 상세 구성도.3 is a detailed configuration diagram of the second light transmittance detection unit.
제4도는 본 발명에 따른 탈수시간과 탈수율과의 관계 그래프도.4 is a graph of the relationship between dehydration time and dehydration rate according to the present invention.
제5도는 제1도의 수광부와 배수시간과의 관계 그래프도.5 is a graph showing the relationship between the light receiving portion and drainage time of FIG.
제6도는 제1도의 수광부와 탈수시간과의 관계 그래프도.6 is a graph showing the relationship between the light receiving portion and dehydration time of FIG.
제7도는 제1도의 동작설명에 대한 신호흐름.7 is a signal flow for the description of the operation of FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 마이콤 2 : 펄스폭변조부1: microcomputer 2: pulse width modulator
3 : 디지탈/아날로그변환부 4 : 빛투과율 검출부3: digital / analog converter 4: light transmittance detector
본 발명은 세탁기의 탈수시간 제어에 관한 것으로, 특히 헹굼 및 탈수를 위한 배수행정에서 배수시간을 이용 탈수시간을 가설정하고 탈수진행 상태에서 세탁물의 양과 질에 따른 탈수상태를 재확인하여 불필요한 전력낭비와 세탁물의 손상을 방지함과 아울러 부족한 탈수시간 발생시 이를 보상하여 세탁물의 탈수시간을 정확히 제어하도록 하는 세탁기의 탈수시간 제어방법에 관한 것이다.The present invention relates to the control of the dehydration time of the washing machine, in particular, to set the dehydration time using the drainage time in the drainage administration for rinsing and dehydration, and to determine the dehydration state according to the quantity and quality of the laundry in the dehydration progress, unnecessary power wastage and laundry The present invention relates to a method of controlling a dehydration time of a washing machine, which prevents damage and compensates for insufficient dehydration time by precisely controlling the dehydration time of laundry.
종래 세탁기의 탈수시간 제어장치는 세탁조내에 빛투과율을 검출하는 빛투과율 검출부와, 그 빛투과율 검출부를 구동시키는 구동부와, 상기 빛투과율 검출부로 검출한 신호에 따라 세탁기의 동작상태를 제어하는 마이콤으로 구성되어 있다.Conventional dehydration time control device of the washing machine comprises a light transmittance detection unit for detecting the light transmittance in the washing tank, a drive unit for driving the light transmittance detection unit, and a microcomputer for controlling the operation state of the washing machine in accordance with the signal detected by the light transmittance detection unit It is.
이와 같은 종래 세탁기의 탈수시간 제어시스템은 세탁조내의 세탁수가 배수호스로 배수될시에 빛투과율 검출부가 배수되는 세탁수에 빛을 투과시키고, 그 투과한 빛의 량을 다시 빛투과율 검출부에서 받아 마이콤에 입력하게 되므로써 마이콤은 가설정된 빛투과율 검출부의 기준값과 현재 검출되는 빛투과율 검출부의 빛의 투과량을 비교하여 탈수행정에서 탈수정도가 상기한 기준치에 도달하였을 때 탈수행정을 제어하여 탈수시간을 조절하게 되어 있다.Such a dehydration time control system of the conventional washing machine transmits light to the wash water drained by the light transmittance detection unit when the wash water in the washing tank is drained into the drainage hose, and receives the amount of the transmitted light from the light transmittance detection unit again. By inputting, the microcomputer compares the reference value of the preset light transmittance detection unit with the light transmission rate of the currently detected light transmittance detection unit and controls the dehydration time by controlling the dehydration stroke when the degree of dehydration in the dehydration stroke reaches the reference value. It is.
그러나 이와 같은 종래 세탁기의 탈수시간 제어시스템은 탈수행정중에서 세탁물의 양과 질을 고려하지 않고 어느 일정기준치에 도달하였을 때 빛투과율 검출부가 탈수정도를 확인하여 탈수시간을 제어하기 때문에 세탁물의 양이 많을때에는 적절한 탈수시간을 벗어나 무리한 탈수시간을 행함으로써 전력낭비 및 세탁물의 손상을 가져올 수 있고 세탁물의 양이 적을때에는 빛투과율 검출부의 기준치까지 도달하는데 너무 빠르기 때문에 적절한 탈수시간 보상이 이루어지지 않는다. 또한 세탁물의 질에 따라 물이 스며드는 정도와 빠지는 정도가 다르기 때문에 가장 적합한 탈수행정 제어를 기대하기 어려운 문제점이 있었다.However, such a dehydration time control system of the conventional washing machine does not consider the quantity and quality of laundry in the dehydration operation, when the light transmittance detector detects the degree of dehydration and controls the dehydration time when a certain reference value is reached. Excessive dehydration time out of proper dehydration time may lead to waste of power and damage to laundry, and when the amount of laundry is small, it is too fast to reach the reference value of the light transmittance detection unit is not properly compensated for the dehydration time. In addition, the degree of water soaking and the degree of the drain is different depending on the quality of the laundry, there was a problem difficult to expect the most suitable dehydration administration control.
본 발명은 이와 같은 종래의 문제점을 감안하여 배수행정에서 빛투과율 검출부로 일정 배수시간을 체크하여 그 배수시간에 따라 탈수시간을 가설정한 다음 탈수진행 상태에서 다시 빛투과율 검출부로 탈수정도 상태를 체크하여서 정확한 탈수시간으로 제어하여 불필요한 전력낭비 및 세탁물의 손상을 방지하고 세탁물의 미탈수상태 발생시 탈수시간을 보상하여 최적의 탈수행정을 수행하도록 세탁기의 탈수시간 제어방법을 창안한 것으로, 이하 본 발명을 첨부한 도면에 의거 상세히 설명하면 다음과 같다.The present invention in view of the above conventional problems in the drainage stroke check the constant drainage time with the light transmittance detection unit to set the dehydration time according to the drainage time, and then check the dehydration degree state with the light transmittance detection unit again in the dehydration progress state The invention is to control the dehydration time of the washing machine to prevent unnecessary power waste and damage to the laundry by compensating the dehydration time and to compensate for the dehydration time in the case of the undehydration state of the laundry to perform the optimal dehydration administration, attached the present invention below When described in detail based on one drawing as follows.
제1도는 본 발명 세탁기의 탈수시간 제어시스템 구성도이고, 제2도는 제1도를 적용한 세탁기의 개략구성도로서, 이에 도시한 바와 같이, 세탁기의 전체 시스템 동작을 제어하는 마이콤(1)과, 상기 마이콤(1)의 제어신호에 의해 구동하여 펄스폭변조신호를 발생하는 펄스폭변조부(2)와, 상기 펄스폭변조부(2)로부터 발생되는 펄스폭변조신호를 아날로그신호로 변환하는 디지탈/아날로그변환부(3)와, 상기 마이콤(1)의 제어신호에 따라 트랜지스터(TR1)를 온-오프 제어함과 아울러 그 트랜지스터(TR1)의 스위칭에 따라 디지탈/아날로그변환부(3)의 출력신호로 발광부(4a) 및 수광부(4b)를 제어하여 배수행정 및 탈수행정시 세탁기의 배수호스(5)로 배수되는 세탁수를 검출하여 마이콤(1)에 입력하는 빛투과율 검출부(4)로 구성한다.1 is a configuration diagram of the dehydration time control system of the washing machine according to the present invention, and FIG. 2 is a schematic configuration diagram of the washing machine to which the first diagram is applied. As shown in FIG. 1, the microcomputer 1 for controlling the overall system operation of the washing machine; A pulse width modulator 2 for driving a pulse width modulated signal driven by a control signal of the microcomputer 1, and a digital signal for converting a pulse width modulated signal generated from the pulse width modulator 2 into an analog signal; On-off control of transistor TR1 according to the control signal of the analog converter 3 and the microcomputer 1, and the output of the digital / analog converter 3 according to the switching of the transistor TR1. By controlling the light emitting unit 4a and the light receiving unit 4b with a signal, the light transmittance detection unit 4 detects the wash water drained to the drain hose 5 of the washing machine and inputs it to the microcomputer 1 during the draining stroke and the dehydrating stroke. Configure.
상기에서 빛투과율 검출부(4)는 제3도와 같이, 수조(6)내의 세탁수를 배수시키는 배수호스(5)에 차단막(4c)을 설치하고 그 차단막(4c)에 발광부(4a)와 수광부(4b)를 고정시켜 배수호스(5)로 배수되는 세탁수를 검출하도록 구성한 것으로, 도면중 미설명 부호 7은 변속기이고, 8은 회전날개이다.In the light transmittance detection unit 4, as shown in FIG. 3, the blocking film 4c is provided in the drain hose 5 for draining the wash water in the water tank 6, and the light emitting part 4a and the light receiving part are provided in the blocking film 4c. (4b) is fixed to detect the wash water drained to the drain hose (5), reference numeral 7 in the figure is a transmission, 8 is a rotary blade.
이와 같이 구성된 본 발명의 작용, 효과를 상세히 설명하면 다음과 같다.Referring to the operation, effects of the present invention configured as described above in detail.
먼저 세탁기의 탈수시간을 설정하기 위해 초기에 마이콤(1)은 펄스폭변조부(2)를 제어하여 펄스폭변조신호를 디지탈/아날로그변환부(3)에 입력하게 된다. 상기한 디지탈/아날로그변환부(3)는 입력된 디지탈신호를 아날로그신호를 변환하여 빛투과율 검출부(4)의 발광부(4a)에 입력하게 되는데, 이때 마이콤(1)은 빛투과율 검출부(4)에 구성된 트랜지스터(TR1)의 베이스에 하이신호를 인가하여 그를 턴-온시키게 된다. 이에 따라 빛투과율 검출부(4)의 발광부(4a)가 턴-온되어 수광부(4b)에 광신호를 조사하여 그 수광부(4b)를 턴-온시키게 된다.First, in order to set the dehydration time of the washing machine, the microcomputer 1 initially controls the pulse width modulator 2 to input the pulse width modulated signal to the digital / analog converter 3. The digital / analog converter 3 converts the input digital signal into an analog signal and inputs it to the light emitting unit 4a of the light transmittance detection unit 4, wherein the microcomputer 1 transmits the light transmittance detection unit 4. A high signal is applied to the base of the transistor TR1 configured to turn it on. Accordingly, the light emitting unit 4a of the light transmittance detecting unit 4 is turned on to irradiate an optical signal to the light receiving unit 4b to turn on the light receiving unit 4b.
이와 같은 상태에서 세탁기의 수조(6)내에 물이 없으면 배수행정시 배수호스(5)로 물이 배수되지 않으므로써 상기한 수광부(4b)의 출력단자(Vo)에서는 제5도와 같이 최대의 전압(V2)이 출력되어 마이콤(1)에 입력되므로 마이콤(1)은 이때의 전압값(V2)을 디지탈로 변환시켜 저장하게 된다. 이후 상기한 수조(6)내에 물이 있는 상태에서 세탁이 완료되어 헹굼 및 탈수를 위한 배수행정에서는 수조(6)내의 물이 배수호스(5)를 통해 배수됨으로써 빛투과율 검출부(4)의 발광부(4a)로부터 조사되는 광신호는 배수되는 물에 의해 일부가 차단되어 수광부(4b)에 입력되어 턴-온량을 결정하게 됨으로써, 상기한 수광부(4b)의 출력단자(Vo)에서는 제5도와 같이 일정한 전압(V1)을 출력하여 마이콤(1)에 입력하게 되고, 마이콤(1)은 이때의 전압(V1)을 기준전압으로하여 저장하게 된다. 이후 배수행정이 완료되어 즉, 배수호스(5)로 배수되는 물이 감소되어 수광부(4b)의 출력단자(Vo)의 전압(V1)값이 제5도와 같이 변환하게 되면 마이콤(1)은 그 수광부(4b)로부터 출력되는 기준전압(V1)의 변화시점을 체크하여 그 변화시점까지를 배수시간(T1)으로 설정하게 된다. 상기 배수시간(T1)은 세탁수위 및 세탁물의 양과 질에 따라 달라지게 된다. 즉, 세탁수위와 세탁물의 양 및 질에 따라 배수호스(5)로 배수되는 물이 장시간 또는 단시간에 배수됨으로써 검출한 배수시간(T1)도 변화하게 된다. 이와 같이 배수시간(T1)이 결정되면 상기한 마이콤(1)은 그 배수시간(T1)을 토대로 동일수위에서 배수시간(T1)이 길면 탈수시간을 짧게 설정하고, 배수시간(T1)이 짧게 나오면 탈수시간을 길게 설정하게 되는데 이 가설정한 탈수시간을 빛투과율 검출부(4)의 기준전압으로 변환하게 된다. 즉, 배수행정이 완료되고 탈수행정모드가 되면 마이콤(1)은 배수행정시 저장한 배수시간(T1)을 체크하여 길게 설정되어 있으면 빛투과율 검출부(4)의 출력이 기준전압(V3)에 도달할 때 까지 제6도와 같이 탈수시간(T2)을 짧게하여 그 탈수시간(T2)동안 탈수모터를 턴-온시켜 변속기(7)를 통해 탈수를 수행하고, 상기에서 배수시간(T1)이 짧게 설정되어 있으면 빛투과율 검출부(4)의 출력이 기준전압(V4)에 도달할때까지 탈수시간(T3)을 길게하여 그 탈수시간(T3)동안 탈수모터를 턴온시켜 탈수를 수행한 후 빛투과율 검출부(4)로부터 검출한 전압이 기준전압(V3) 또는 기준전압(V4)에 도달하면 탈수모터를 오프시켜 탈수행정을 완료하게 된다.In such a state, if there is no water in the water tank 6 of the washing machine, the water is not drained to the drain hose 5 at the time of drainage, so that at the output terminal Vo of the light receiving unit 4b, the maximum voltage ( Since V2) is output and input to the microcomputer 1, the microcomputer 1 converts the voltage value V2 at this time into digital and stores it. Then, the washing is completed in the state in which the water tank 6 is present, and in the drainage stroke for rinsing and dehydration, the water in the water tank 6 is drained through the drain hose 5 so that the light emitting unit of the light transmittance detection unit 4 A part of the optical signal irradiated from 4a is blocked by the drained water and input to the light receiving unit 4b to determine the turn-on amount, so that the output terminal Vo of the light receiving unit 4b is as shown in FIG. 5. The constant voltage V1 is output and input to the microcomputer 1, and the microcomputer 1 stores the voltage V1 as a reference voltage at this time. Thereafter, when the drain stroke is completed, that is, the water drained to the drain hose 5 is reduced and the voltage V1 value of the output terminal Vo of the light receiving unit 4b is converted as shown in FIG. The point of change of the reference voltage V1 output from the light receiving unit 4b is checked and the time until the point of change is set as the drainage time T1. The drainage time T1 will vary depending on the wash level and the quantity and quality of the laundry. That is, according to the washing water level and the quantity and quality of the laundry, the drainage time T1 detected by draining the water drained to the drain hose 5 for a long time or a short time is also changed. When the drainage time T1 is determined as described above, the microcomputer 1 sets the dehydration time shortly if the drainage time T1 is long at the same water level based on the drainage time T1, and if the drainage time T1 is short. The dehydration time is set long, and the provisional dehydration time is converted into the reference voltage of the light transmittance detection unit 4. That is, when the drainage stroke is completed and the dehydration stroke mode is completed, the microcomputer 1 checks the drainage time T1 stored in the drainage stroke and is set long so that the output of the light transmittance detector 4 reaches the reference voltage V3. By shortening the dehydration time (T2) as shown in Figure 6 until the dehydration motor during the dehydration time (T2) to perform the dehydration through the transmission (7), the drainage time (T1) is set to short If it is, the dehydration time T3 is extended until the output of the light transmittance detection unit 4 reaches the reference voltage V4, and the dehydration motor is turned on during the dehydration time T3 to perform dehydration. When the voltage detected from 4) reaches the reference voltage V3 or the reference voltage V4, the dehydration motor is turned off to complete the dehydration operation.
이상에서 상세히 설명한 바와 같이, 본 발명은 빛투과율 검출부를 이용하여 일정시간 동안 배수시간을 체크하여 이를 토대로 탈수시간을 가설정한 다음 탈수진행 상태에서 빛투과율 검출부로 다시 탈수시간을 검출하여 탈수진행 상태를 제어함으로써 불필요한 탈수시간으로 인한 세탁물의 손상 및 전력낭비를 줄일 수 있고 부족한 탈수시간이 발생하였을때는 그 탈수시간을 보사하여 줌으로써 최적의 탈수행정을 행할 수 있고, 또한 탈수행정에서 빛투과율 검출부의 기준값을 배수시간의 차이에 따라 각각 다르게 설정해 놓으므로써 세탁물의 양과 질에 맞는 탈수를 제어할 수 있는 효과가 있다.As described in detail above, the present invention checks the drainage time for a predetermined time by using the light transmittance detection unit, and temporarily set the dehydration time based on this, and then detects the dehydration time again by the light transmittance detection unit in the dehydration progress state to determine the dehydration progress state. By controlling it, it is possible to reduce laundry damage and power waste due to unnecessary dehydration time. When insufficient dehydration time occurs, the dehydration time can be compensated for optimal dehydration operation. By setting differently according to the difference of drainage time, it is possible to control the dehydration according to the quantity and quality of the laundry.
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KR1019910025033A KR940008600B1 (en) | 1991-12-30 | 1991-12-30 | Dehydration time control method of washer |
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KR1019910025033A KR940008600B1 (en) | 1991-12-30 | 1991-12-30 | Dehydration time control method of washer |
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