KR940008628B1 - Laundry quantity and quality sensing apparatus - Google Patents

Laundry quantity and quality sensing apparatus Download PDF

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Publication number
KR940008628B1
KR940008628B1 KR1019910023676A KR910023676A KR940008628B1 KR 940008628 B1 KR940008628 B1 KR 940008628B1 KR 1019910023676 A KR1019910023676 A KR 1019910023676A KR 910023676 A KR910023676 A KR 910023676A KR 940008628 B1 KR940008628 B1 KR 940008628B1
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KR
South Korea
Prior art keywords
motor
current
laundry
washing machine
amount
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KR1019910023676A
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Korean (ko)
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KR930013324A (en
Inventor
류재철
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주식회사 금성사
이헌조
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Priority to KR1019910023676A priority Critical patent/KR940008628B1/en
Publication of KR930013324A publication Critical patent/KR930013324A/en
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Publication of KR940008628B1 publication Critical patent/KR940008628B1/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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F34/10—Power supply arrangements, e.g. stand-by circuits
    • 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 
    • D06F37/304—Arrangements or adaptations of electric motors
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/06—Type or material
    • 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
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The apparatus for sensing the laundry quantity and quality of a washing machine lessens an outside error cause such as the laundry state, friction, etc. by sensing a current's amount proportionate directly to the laundry quantity in the midst of a motor's driving. The apparatus operating by triac and by a motor includes a current sensor for sensing the current generated while an alternating current applies to the motor, thereby the apparatus sensses the current amount and senses the laundry quantity by its average value and the laundry quality by its variation.

Description

세탁기의 포량/포질 감지장치Quantity / Forming Detector of Washing Machine

제1도는 종래 세탁기의 회로구성도.1 is a circuit diagram of a conventional washing machine.

제2도는 본 발명 세탁기의 회로구성도.2 is a circuit diagram of a washing machine of the present invention.

제3도는 세탁물 양의 변화에 따라 토크 및 전류변화 특성도.3 is a characteristic diagram of torque and current change according to the change of laundry amount.

제4도는 제2도에서 세탁물 양에 따른 출력의 전압변화도.4 is a voltage change diagram of the output according to the amount of laundry in FIG.

제5도는 종래 세탁기의 포량감지 제어 흐름도.5 is a flow rate detection control flowchart of a conventional washing machine.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

Tr1, Tr2: 트라이악 C1: 콘덴서T r1 , T r2 : Triac C 1 : Condenser

M : 모터 10 : 전류감지부M: Motor 10: Current sensing unit

L1: 코일L 1 : coil

본 발명은 세탁기의 포량 및 포질 감지에 관한 것으로, 특히 모터에 공급되는 입력전원의 전류를 감지하여 포량 및 포질을 감지하도록 하는 세탁기의 포량/포질 감지장치에 관한 것이다.The present invention relates to a quantity and quality detection of the washing machine, and more particularly, to a quantity / quality detection device of the washing machine to sense the current and the input power supplied to the motor to detect the quantity and quality.

종래에는 제1도에 도시된 바와같이 전원(AC)인가시 전원전압은 트라이악(Tr1)(Tr2) 및 모터(M)에 인가하고, 모터구동입력단자(P1)를 통해 상기 트라이악(Tr1)(Tr2) 게이트에 인가되는 모터구동신호에 따라 상기 모터(M)가 구동되며, 상기 모터(M)의 구동에 따라 출력단자(P2)를 통해 출력신호의 펄스수 및 시간을 계산하도록 구성된다.Conventionally, as shown in FIG. 1, when a power supply AC is applied, a power supply voltage is applied to a triac T r1 (T r2 ) and a motor M, and is applied to the tri drive through a motor driving input terminal P 1 . The motor M is driven according to the motor driving signal applied to the evil T r1 (T r2 ) gate, and the number of pulses of the output signal through the output terminal P 2 according to the driving of the motor M and Configured to calculate the time.

여기서 미설명 부호 C1은 콘덴서이다.Here, reference numeral C 1 is a capacitor.

이와같이 구성된 종래의 회로는 모터(M)에 인가되는 전원이 오프된 후 관성력에 의한 모터(M)의 로터(Rotor)회전으로 발생하는 유도 기전력을 출력으로 받아 로터가 정지할때까지의 펄스수 또는 시간으로 포량을 감지한다.The conventional circuit configured as described above has the number of pulses until the rotor is stopped by receiving the induced electromotive force generated by the rotor rotation of the motor M by the inertia force after the power applied to the motor M is turned off, or Detect quantity in time.

상기에서와 같은 포량감지를 제5도의 포량감지 흐름도에 의거하여 설명하면 다음과 같다.A description of the above-described quantity detection based on the quantity detection flowchart of FIG. 5 is as follows.

모터구동입력단자(P1)를 통해 모터구동신호를 트라이악(Tr1)(Tr2)의 게이트에 인가하여 도통시킨 후 소정시간 지연 후에 모터구동신호를 인가하지 않아 상기 트라이악(Tr1)(Tr2)을 오프시키면 출력단자(P2)에서 출력신호를 감지하여 상기 출력단자(P2)를 통해 출력되는 펄스수 및 시간을 계산하는 동작을 수회 반복실시한 후 펄스수 및 시간합계 평균을 구하여 포량을 산출한 다음 세탁을 시작한다.The motor driving signal is applied to the gate of the triac T r1 (T r2 ) through the motor driving input terminal P 1 to conduct the motor driving signal after a predetermined time delay, and thus the triac T r1 is not applied. When (T r2 ) is turned off, the output terminal P 2 detects an output signal and calculates the number of pulses and the time output through the output terminal P 2 . Calculate the volume and start washing.

그러나, 이와같은 종래 포량감지방법은 모터에 인가되는 전원이 오프된 후 관성력에 의한 모터의 로터회전으로부터 발생하는 유도 기전력을 세탁물의 양에 따라 큰 차이를 보이지 않을 뿐아니라 관성력만을 이용하기 때문에 세탁물의 상태에 따라 큰 차이를 보인다. 따라서 오차가 커지고 결과적으로 포량감지가 불확실해지는 문제점이 있었다.However, the conventional method of detecting a quantity of laundry does not show a significant difference depending on the amount of laundry, and the induction electromotive force generated from the rotor rotation of the motor by the inertia force after the power applied to the motor is turned off. There is a big difference depending on the condition. Therefore, there is a problem that the error is large, and as a result, the capacity detection is uncertain.

이와같은 종래의 결함을 감안하여 본 발명은 세탁기에 있어서 모터의 COM단자 부분에 전류감지부를 구비하여 세탁시 모터에 인가되는 전원의 전류를 감지하여 포량 및 포질을 산출하므로서 포량 및 포질감지의 오차를 줄이도록 한 세탁기의 포량/포질 감지장치를 창안한 것으로 이를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.In view of such a conventional deficiency, the present invention includes a current sensing unit at a COM terminal of a motor in a washing machine, and detects a current of a power applied to the motor during washing to calculate a quantity and a quality of the washing machine. Invented a washing machine for reducing the quantity / form of the washing machine to be described in detail by the accompanying drawings as follows.

제2도는 본 발명 세탁기의 회로구성도로서 모터구동입력단자(P1)를 통해 인가하는 모터구동신호에 따라 전원(AC)을 온·오프하는 트라이악(Tr1)(Tr2)과, 이 트라이악(Tr1)(Tr2)의 온·오프동작에 따라 구동하는 모터(M)와, 교류전원이 상기 모터(M)에 인가되면서 발생하는 전류를 감지하는 전류감지부(10)로 구성한다.2 is a circuit diagram of a washing machine according to the present invention, and a triac T r1 (T r2 ) for turning on and off a power source AC according to a motor driving signal applied through a motor driving input terminal P 1 . The motor M driven in accordance with the on-off operation of the triac T r1 T r2 , and a current sensing unit 10 for sensing current generated when an AC power is applied to the motor M. do.

여기서 미설명 부호 C1)은 콘덴서이다.Here, reference numeral C 1 ) is a capacitor.

이와같이 구성된 본 발명의 작용, 효과를 상세히 설명하면 다음과 같다.Referring to the operation, effects of the present invention configured as described above in detail.

전원이 인가된 상태에서 모터구동입력단자(P1)를 통해 모터구동신호를 트라이악(Tr1)(Tr2)의 게이트에 인가하면, 상기 트라이악(Tr1)(Tr2)이 턴온되어 모터가 구동된다. 이때 전원의 전류를 전류감지부(10)의 코일(L1)에 유도 기전력을 발생한다.When applying the motor drive signal from the motor driving the input terminal (P 1) when the power is applied to the gate of the triac (T r1) (T r2) , the triac (T r1) (T r2) are turned on The motor is driven. At this time, the induced electromotive force is generated in the coil L 1 of the current sensing unit 10 with the current of the power source.

결과적으로 제3도에서 보는 바와같이 세탁시에 세탁물의 양(포량)에 따라 토크 및 전류의 값으로 증가하는 코일(L1)에 발생하는 유도 기전력을 증가시켜 출력단자(Vout)의 출력은 제3도에서 보는 바와같이 포량에 비례, 즉 포량은 A>B>C, 전류도 A>B>C로 증가하므로 전압(△V)의 평균값으로 산출한다.As a result, as shown in FIG. 3, the induced electromotive force generated in the coil L 1 increases with the value of torque and current according to the amount of laundry (amount of laundry) during washing, and the output of the output terminal Vout is reduced. As shown in Fig. 3, it is proportional to the dose, that is, the dose increases to A>B> C, and the current also increases to A>B> C.

또한, 세탁시에 세탁물이 세탁조에 투입되어 있을 때 모터의 회전으로 펄세이터를 구동시키면 세탁조 내에서는 유동이 생기게 되고 이때 이 유동에 의해 세탁물도 함께 움직이게 된다. 그런데 세탁물이 유동할때 펄세이터와 직접 접촉하게 되는 경우가 발생하게 되어 이때는 펄세이터에 부하토크가 증가되고 모터의 전류도 커진다.In addition, when the laundry is put into the washing tank at the time of washing, when the pulsator is driven by the rotation of the motor, a flow is generated in the washing tank, and the laundry moves together with the flow. However, when the laundry flows, the pulsator is in direct contact with the load. In this case, the load torque of the pulsator is increased and the current of the motor is increased.

그리고 이때의 세탁물과 펄세이터가 접촉할때 면과 같이 부드러운 세탁물은 진과 같이 딱딱한 세탁물보다 부하토크의 증가가 작게 나타난다. 결국 세탁물의 종류에 따라 접촉할때와 접촉하지 않을때의 부하토크 차이(편차) 혹은 전류의 차이가 다르게 나타난다.At this time, when the laundry and the pulsator is in contact with the soft laundry, such as cotton, the increase in load torque is smaller than the hard laundry, such as jeans. As a result, the load torque difference (deviation) or the current difference between the contact and the non-contact appears differently depending on the type of laundry.

세탁물의 양이 많아지면 접촉횟수와 유동저항이 커져 부하토크 또는 전류의 평균값이 상승하게 된다.As the amount of laundry increases, the number of contacts and flow resistance increase, resulting in an increase in the average value of load torque or current.

따라서 세탁시 전류의 평균값으로 세탁물의 양을 감지하고 이때의 전류편차로 포질(세탁물의 종류)을 감지할 수 있다. 즉, 세탁물이 면과 같이 부드러운 것이면 전압(△V)의 편차가 작게 나타나고, 청바지등과 같이 비교적 두껍고 부드럽지 못하면 전압(△V)의 편차가 크게 나타나므로 전압(△V)의 편차로 세탁물의 포질을 감지한다.Therefore, it is possible to detect the amount of laundry by the average value of the current at the time of washing and to detect the form (type of laundry) by the current deviation at this time. That is, if the laundry is soft like cotton, the variation of voltage (ΔV) appears small. If the thickness is relatively thick and not soft, such as jeans, the variation of voltage (ΔV) appears large. Detect the quality.

이상에서 상세히 설명한 바와같이 본 발명은 세탁물의 양에 직접 비례하는 전류의 양을 감지하여 포량 및 포질의 감지오차가 작고, 모터가 구동중인 상태에서 감지하므로 세탁물의 상태, 마찰력등의 외적 오차요인을 작게 받는 효과가 있다.As described in detail above, the present invention detects an amount of current directly proportional to the amount of laundry, so that the detection error of the quantity and the quality is small and the motor is driven, thereby detecting external error factors such as the state of the laundry and frictional force. It has a small effect.

Claims (2)

모터구동입력단자(P1)를 통해 인가하는 모터구동신호에 따라 전원(AC)을 온·오프하는 트라이악(Tr1)(Tr2)과, 이 트라이악(Tr1)(Tr2)의 온·오프 동작에 따라 구동하는 모터(M)에 의해 동작하는 장치에 있어서, 교류전원이 상기 모터(M)에 인가되면서 발생하는 전류를 감지하는 전류감지부(10)를 구비하여 전류의 양을 감지한 후 그 평균치로 포량을, 감지하고 편차로는 포질을 감지함을 특징으로 하는 세탁기의 포량/포질 감지장치.The triac T r1 (T r2 ) for turning on and off the power source AC according to the motor drive signal applied through the motor drive input terminal P 1 , and the triac T r1 (T r2 ). In the apparatus operated by the motor (M) to drive in accordance with the on / off operation, the current sensing unit 10 for sensing the current generated when the AC power is applied to the motor (M) to provide an amount of current A quantity / foam detection device of a washing machine, characterized in that after detecting the amount of detection by the average value, and detects the quality of the deviation. 제1항에 있어서, 상기 전류감지부(10)는 모터(M)의 COM단자선에 코일(L1)을 감아 모타구동시 발생하는 유도기전력을 감지하도록 된 것을 특징으로 하는 세탁기의 포량/포질 감지장치.The washing machine according to claim 1, wherein the current sensing unit 10 is configured to sense the induced electromotive force generated when the motor is driven by winding the coil L 1 around the COM terminal line of the motor M. Sensing device.
KR1019910023676A 1991-12-20 1991-12-20 Laundry quantity and quality sensing apparatus KR940008628B1 (en)

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KR940008628B1 true KR940008628B1 (en) 1994-09-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110023314A (en) * 2009-08-31 2011-03-08 엘지전자 주식회사 Controlling method of washing machine
US10370787B2 (en) 2009-08-31 2019-08-06 Lg Electronics Inc. Control method of washing machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100473319B1 (en) * 2002-07-09 2005-03-10 삼성전자주식회사 Washing machine and control method thereof
CN114134677A (en) * 2021-11-23 2022-03-04 无锡飞翎电子有限公司 Control method, control device, clothes treatment equipment and computer readable storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110023314A (en) * 2009-08-31 2011-03-08 엘지전자 주식회사 Controlling method of washing machine
US10370787B2 (en) 2009-08-31 2019-08-06 Lg Electronics Inc. Control method of washing machine

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