JPH0679086A - Control method for washing machine - Google Patents

Control method for washing machine

Info

Publication number
JPH0679086A
JPH0679086A JP4233327A JP23332792A JPH0679086A JP H0679086 A JPH0679086 A JP H0679086A JP 4233327 A JP4233327 A JP 4233327A JP 23332792 A JP23332792 A JP 23332792A JP H0679086 A JPH0679086 A JP H0679086A
Authority
JP
Japan
Prior art keywords
washing machine
clothes
detergent
amount
detected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4233327A
Other languages
Japanese (ja)
Other versions
JP3212155B2 (en
Inventor
Shigeharu Nakano
重治 中野
Yasushi Shinko
靖 信耕
Isao Hiyama
功 桧山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP23332792A priority Critical patent/JP3212155B2/en
Publication of JPH0679086A publication Critical patent/JPH0679086A/en
Application granted granted Critical
Publication of JP3212155B2 publication Critical patent/JP3212155B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

PURPOSE:To improve the accuracy of displaying the standard amount of detergent in a low-cost constitution by a method wherein a revolution resistance of an agitating blade without a load of washing is previously detected and stored, and with it as reference, calculates a resistance of a load of washing when it is actually put into. CONSTITUTION:At first, a dry cloth sensing is performed. An agitating blade 6 rotates counterclockwise for about 0.5sec. and stops for about 1.0sec., which is repeated three times, for example. A resistance of a load of washing offers to an agitating blade 6 when it stops is detected by a terminal voltage of a motor driving capacitor as a counterelectromotive force for a motor 8, and converted to dc square wave pulse to measure the time between the pulses. On the other hand, a fixed memory 20 previously had a standard pulse interval on rotation of the agitating wing without a load inputted before leaving a plant, and according to the value, the amount of detergent and that of water are displayed on a setting panel. Setting of a reference is easily performed by pushing buttons of the amount of detergent, that of water, and the manual course simultaneously, which causes the agitating blade to rotate.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、液体,粉末などの洗剤
により、衣類を洗浄する洗濯機における洗剤量を精度良
く検出するための制御方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method for accurately detecting the amount of detergent in a washing machine for washing clothes with detergent such as liquid or powder.

【0002】[0002]

【従来の技術】従来の洗剤量目安を表示する方法として
は、槽全体を吊り下げている、吊り棒に重量検知装置を
取り付けて衣類の重量から洗剤量を表示する方法。
2. Description of the Related Art As a conventional method of displaying a detergent amount standard, a method of displaying a detergent amount from the weight of clothes by attaching a weight detection device to a hanging rod that suspends the whole tank is shown.

【0003】衣類を入れ、水なしの状態で撹拌翼を回転
させ、停止させた時に撹拌翼に加わる布抵抗から洗剤量
を表示する方法がある。
There is a method of displaying the amount of detergent from the cloth resistance applied to the stirring blade when clothes are put in and the stirring blade is rotated without water.

【0004】いずれの方法も、検出装置の誤差の範囲を
見込んだ、しきい値により、洗剤量を表示している。
In any of the methods, the amount of detergent is displayed by a threshold value that allows for the error range of the detection device.

【0005】[0005]

【発明が解決しようとする課題】従来技術において、撹
拌翼を回転させ、停止させた時に撹拌翼に加わる抵抗を
検知する場合、検出誤差として、 (1) モータ出力トルクのバラツキ (1)′コンデンサ容量バラツキによる出力トルク変動 (2) モータ軸受ロストルク (3) クラッチ軸受部のロストルク (4) クラッチ減速ギヤのロストルク (5) 電源電圧による出力トルクのバラツキ などが考えられる。
In the prior art, when detecting the resistance applied to the agitating blade when the agitating blade is rotated and stopped, as the detection error, (1) variation in motor output torque (1) 'condenser Output torque fluctuation due to capacity variation (2) Motor bearing loss torque (3) Clutch bearing loss torque (4) Clutch deceleration gear loss torque (5) Output torque variation due to power supply voltage is considered.

【0006】(1)〜(4)については、製品個々の持つバラ
ツキであり、製品個々のバラツキを最小限に抑えること
によって洗剤量目安表示の精度を大幅に向上できる。
The items (1) to (4) are variations of each product, and the precision of the detergent amount standard display can be greatly improved by minimizing the variation of each product.

【0007】[0007]

【課題を解決するための手段】前述の(1)〜(4)を解決す
るためには、 (1) モータの巻線の線径,巻回数,コア材のバラツキ
低減 (1)′コンデンサ容量のバラツキ小化 (2)〜(4):各部品の製作精度の向上によるロストルクの
低減が必要である。しかしながら現実的には、製作工場
における、工程能力から精度向上には限界がある。そこ
で、衣類なしの状態で撹拌翼を回転させた時のバラツキ
がすなわち(1)〜(4)の誤差の合計であるから、各製品
個々の衣類なし状態での撹拌翼の回転抵抗を検出記憶
し、その検出データに基づいて、実際の衣類を入れたと
きの布抵抗値を補正することにより精度の高い、洗剤量
の目安を表示することができる。
[Means for Solving the Problems] In order to solve the above-mentioned (1) to (4), (1) reduction in variation in wire diameter, number of turns, and core material of motor winding (1) 'capacitor capacity (2) to (4): It is necessary to reduce the loss torque by improving the manufacturing accuracy of each part. However, in reality, there is a limit to the accuracy improvement in the manufacturing factory due to the process capability. Therefore, the variation when the stirring blade is rotated without clothes is the sum of the errors of (1) to (4) .Therefore, the rotation resistance of the stirring blade without clothes of each product is detected and stored. Then, by correcting the cloth resistance value when the actual clothes are put in based on the detected data, it is possible to display a highly accurate standard of the detergent amount.

【0008】しかも、工場出荷時のデータをマイコンに
記憶させ、マイコンの電源をバックアップすることによ
って、一定条件下での基準値を得ることができる。また
そのデータを不揮発性メモリーに記憶させ、読み出し
て、補正することにより安価の構成により目的を達成す
ることができる。
Moreover, by storing the factory-shipped data in the microcomputer and backing up the power supply of the microcomputer, the reference value under a certain condition can be obtained. Further, by storing the data in a non-volatile memory, reading the data, and correcting the data, the object can be achieved with an inexpensive configuration.

【0009】[0009]

【作用】衣類なしの状態での撹拌翼の回転抵抗を検知
し、これをマイコンあるいは、不揮発性メモリーに記憶
し、これを基準データとして、実衣類の検知データとし
て使用することによって、精度の良い、洗剤量の目安表
示とすることができる。
[Function] The rotation resistance of the stirring blade without clothes is detected, stored in a microcomputer or a non-volatile memory, and is used as reference data to detect actual clothes, resulting in high accuracy. , It can be used as a rough indication of the amount of detergent.

【0010】[0010]

【実施例】本発明の実施例を各図面に基づいて説明す
る。
Embodiments of the present invention will be described with reference to the drawings.

【0011】本発明を採用した洗濯機は図1に示すよう
に鋼板製の外枠1内に吊り棒2および防振装置3,4本
によって外槽4を吊架する構成になっている。
As shown in FIG. 1, the washing machine adopting the present invention has a structure in which an outer tub 4 is suspended in a steel frame outer frame 1 by suspension rods 2 and 3 and 4 vibration damping devices.

【0012】洗濯時の水を溜める外槽4内には洗濯兼脱
水槽5を回転自在に設ける。洗濯兼脱水槽には、多数の
脱水孔5aを設ける。洗濯兼脱水槽中央には洗濯撹拌用
の撹拌翼6が配設されている。外槽4底面には駆動用モ
ータ7,脱水,洗濯切換用クラッチ8,クラッチ作動お
よび排水弁開閉用の排水バルブモータ9を設置するとと
もに、底面側壁には洗濯液の電導度を測定する高周波電
導度センサー10(以下電導センサーという)の電極部
が外槽4底面を貫通して水中に浸漬するよう設置されて
いる。
A washing / dehydrating tub 5 is rotatably provided in the outer tub 4 for storing water during washing. A large number of dehydration holes 5a are provided in the washing and dehydrating tub. At the center of the washing / dehydrating tank, a stirring blade 6 for stirring the washing is arranged. A drive motor 7, a dehydration / washing switching clutch 8, a drain valve motor 9 for opening / closing the clutch and opening / closing the drain valve are installed on the bottom surface of the outer tub 4, and a high-frequency electrical conductor for measuring the electrical conductivity of the washing liquid is provided on the side wall of the bottom surface. The electrode portion of the temperature sensor 10 (hereinafter referred to as the conductivity sensor) is installed so as to penetrate the bottom surface of the outer tank 4 and be immersed in water.

【0013】トップカバー12後部には操作パネル部1
3が設けられており、操作パネル部13内には水道水栓
からの水を槽内に給水する給水電磁弁14を設ける。給
水電磁弁14の出口は直接洗濯兼脱水槽5に給水する。
槽内給水口15aに接続されている。(給水電磁弁14
とセンサー給水口15aはフレキシブルなホースで接続
されている。)操作パネル13内には更に外槽4の水位
を検知する水位センサー(図示せず)、洗濯機を制御す
るための制御基板17が配置されている。制御基板は図
3に示す如く電源スイッチ18を介し、制御を司どるマ
イコン,電源回路,LED表示回路,外部操作スイッチ
回路,ソレノイド出力回路,出力回路、および電導セン
サー10制御用の高周波発振回路,センサー読込回路デ
ータ記憶用不揮発性メモリー20などから構成されてい
る。
An operation panel section 1 is provided at the rear of the top cover 12.
3 is provided, and a water supply solenoid valve 14 for supplying water from the tap water into the tank is provided in the operation panel unit 13. The outlet of the water supply solenoid valve 14 directly supplies water to the washing and dehydrating tub 5.
It is connected to the in-tank water supply port 15a. (Water supply solenoid valve 14
The sensor water supply port 15a and the sensor water supply port 15a are connected by a flexible hose. ) Inside the operation panel 13, a water level sensor (not shown) for detecting the water level of the outer tub 4 and a control board 17 for controlling the washing machine are arranged. As shown in FIG. 3, the control board is provided with a power control switch 18, which controls a microcomputer, a power supply circuit, an LED display circuit, an external operation switch circuit, a solenoid output circuit, an output circuit, and a high-frequency oscillation circuit for controlling the conduction sensor 10. The sensor reading circuit includes a non-volatile memory 20 for storing data.

【0014】次に洗濯機の動作を説明する。洗濯物を投
入し電源スイッチを「入」にして、操作スイッチにより
「標準」全自動コースを設定し「スタート」ボタンを押
すと、全自動運転を実行する。
Next, the operation of the washing machine will be described. Put the laundry in, set the power switch to "ON", set the "standard" fully automatic course with the operation switch, and press the "start" button to execute the fully automatic operation.

【0015】まず始めに乾布センシングを実行する。こ
れは撹拌翼が反時計方向に0.5 秒回転−1.0 秒停止
を3回繰り返し、停止時に撹拌翼に加わる布抵抗を図2
の回路でモータ8の逆起電力としてモータ駆動用コンデ
ンサー8aの端子電圧にて検知し、これを直流矩形波パ
ルスに変換して、このパルス間((イ)パルスと(ロ)パル
ス)の時間t1 を測定する。パルス波形を図3に示す。
一方不揮発性メモリー20には、工場出荷時に、衣類な
しの状態で撹拌翼を回転させた時の基準パルス間時間t
1′が予め入力されており、t1′の値に応じて、洗剤
量,水量を下記の如く設定パネル面に図5の如く表示す
る。
First, dry cloth sensing is executed. This is because the stirring blade rotates counterclockwise for 0.5 seconds-stops for 1.0 seconds three times, and the cloth resistance applied to the stirring blade when stopped is shown in Fig. 2.
Circuit detects the back electromotive force of the motor 8 at the terminal voltage of the motor driving capacitor 8a, converts this to a DC rectangular wave pulse, and the time between these pulses ((a) pulse and (b) pulse) Measure t 1 . The pulse waveform is shown in FIG.
On the other hand, in the nonvolatile memory 20, the time t between the reference pulses when the stirring blade is rotated without clothes is set in the nonvolatile memory 20.
1 'has been input in advance, t 1' according to the value of the detergent amount, and displays as shown in FIG. 5 the amount of water to set the panel surface as described below.

【0016】[0016]

【表1】 [Table 1]

【0017】すなわち、t1′≧xの時はロストルクな
どが大きい製品であり、t1′<xに比べ同じ実測値b
という値を検出しても、実際に投入された衣類の量は少
なく(S)に示すように洗剤量,水量を少なく表示する
必要がある。
That is, when t 1 ′ ≧ x, the product has a large loss torque and the like, and the measured value b is the same as that of t 1 ′ <x.
Even if this value is detected, the amount of clothes actually put in is small and it is necessary to display the amount of detergent and the amount of water as shown in (S).

【0018】また、この基準値t1′ 設定は、工場出荷
時の設定や、サービスパーツ交換時に容易に行うことが
できるように、洗剤量・水量ボタン21と手動コースボ
タン22を同時押しすることにより撹拌翼が回転し、基
準値t1 を簡単に設定できるようにしてある。
Further, the reference value t 1 'is set by pressing the detergent amount / water amount button 21 and the manual course button 22 at the same time so that it can be easily set at the time of factory shipment or when service parts are replaced. By this, the stirring blade rotates and the reference value t 1 can be easily set.

【0019】[0019]

【発明の効果】本発明によれば、 (1)予め設定された、衣類なし状態で検知された基準デ
ータt1′ に応じて、洗剤量,水量の目安を表示でき
る、また、この時の基準データは工場出荷時に記憶して
いるため、定電圧下において精度良いデータとすること
ができ、製品個々の機械的電気的バラツキによって生じ
る誤差を吸収し、精度の良い目安表示とでき、洗剤の使
いすぎを防止できる省資源対応洗濯機となる。
EFFECTS OF THE INVENTION According to the present invention, (1) it is possible to display the standard of the detergent amount and the water amount according to the preset reference data t 1 ′ detected without clothes, and at this time, Since the reference data is stored at the time of shipment from the factory, it can be set as accurate data under constant voltage, and it absorbs the error caused by mechanical and electrical variations among products, and can be used as a highly accurate guideline display for detergents. A resource-saving washing machine that can prevent overuse.

【0020】(2)洗濯機操作用スイッチにより基準値t
1′ が設定できるようにしたので、部品交換時にも簡単
に新しい基準値を設定することができる。
(2) The reference value t by the washing machine operating switch
Since 1'can be set, a new reference value can be set easily even when replacing parts.

【図面の簡単な説明】[Brief description of drawings]

【図1】洗濯機の断面図である。FIG. 1 is a cross-sectional view of a washing machine.

【図2】洗剤量検知センサーの回路図である。FIG. 2 is a circuit diagram of a detergent amount detection sensor.

【図3】図2で検知した発生パルス図である。3 is a generated pulse diagram detected in FIG. 2. FIG.

【図4】本実施例の全体制御のブロック図である。FIG. 4 is a block diagram of the overall control of this embodiment.

【図5】本実施例のパネル表示図である。FIG. 5 is a panel display diagram of the present embodiment.

【符号の説明】[Explanation of symbols]

1…外枠、2…吊り棒、3…防振装置、4…外槽、5…
洗濯兼脱水槽、5a…脱水孔、6…撹拌翼、7…モー
タ、8…クラッチ、9…排水バルブモータ、10…セン
サー、12…カバー、13…操作パネル部、14…給水
電磁弁、15a…給水口、17…制御基板、18…電源
スイッチ。
DESCRIPTION OF SYMBOLS 1 ... Outer frame, 2 ... Suspension rod, 3 ... Antivibration device, 4 ... Outer tank, 5 ...
Washing / dehydrating tank 5a ... Dehydration hole, 6 ... Stirring blade, 7 ... Motor, 8 ... Clutch, 9 ... Drain valve motor, 10 ... Sensor, 12 ... Cover, 13 ... Operation panel section, 14 ... Water supply solenoid valve, 15a ... water inlet, 17 ... control board, 18 ... power switch.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】洗濯機に衣類を投入し、スタートボタンを
押して運転が開始した後、給水を開始する前に槽内に設
置された撹拌翼を回転させ、停止させた時の撹拌翼に加
わる布抵抗を検知することにより、衣類の量を感知し、
必要な洗剤量、或いは水量を表示するようにした洗濯機
において、予め衣類なし時の撹拌翼の回転抵抗を検知
し、記憶しておき、これを基準値として、実際に布を入
れた時の布抵抗を算出するようにしたことを特徴とする
洗濯機の制御方法。
1. After putting clothes in a washing machine and pushing a start button to start operation, the stirring blade installed in the tub is rotated before starting water supply, and is added to the stirring blade when stopped. By detecting the cloth resistance, you can sense the amount of clothing,
In a washing machine that displays the required amount of detergent or water, the rotation resistance of the stirring blade when there is no clothes is detected and stored in advance, and this value is used as a reference value when the cloth is actually inserted. A method for controlling a washing machine, wherein the cloth resistance is calculated.
【請求項2】請求項1において、衣類なし時の撹拌翼の
基準抵抗値を工場出荷時に検知しマイコンに記憶させ、
マイコン電源を、バッテリなどの電源でバックアップす
るようにしたことを特徴とする洗濯機の制御方法。
2. The method according to claim 1, wherein the standard resistance value of the stirring blade without clothes is detected at the time of factory shipment and stored in a microcomputer.
A method of controlling a washing machine, characterized in that the microcomputer power supply is backed up by a power supply such as a battery.
【請求項3】請求項1において、衣類なし時の撹拌翼の
基準抵抗値を工場出荷時に検知し、検知値を基準データ
として不揮発性メモリーに記憶させ、実衣類検出時に不
揮発性メモリーから読み出した基準値に応じて洗剤量を
表示するようにしたことを特徴とする洗濯機の制御方
法。
3. The method according to claim 1, wherein the reference resistance value of the stirring blade without clothes is detected at the time of factory shipment, the detected value is stored in the nonvolatile memory as reference data, and read out from the nonvolatile memory when the actual clothes are detected. A method for controlling a washing machine, wherein the amount of detergent is displayed according to a reference value.
【請求項4】請求項1において、衣類なし時の撹拌翼の
基準抵抗値の記憶を洗濯機操作用の外部入力スイッチに
より、行うようにしたことを特徴とする洗濯機の制御方
法。
4. The method for controlling a washing machine according to claim 1, wherein the reference resistance value of the stirring blade when there is no clothes is stored by an external input switch for operating the washing machine.
JP23332792A 1992-09-01 1992-09-01 Washing machine Expired - Lifetime JP3212155B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23332792A JP3212155B2 (en) 1992-09-01 1992-09-01 Washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23332792A JP3212155B2 (en) 1992-09-01 1992-09-01 Washing machine

Publications (2)

Publication Number Publication Date
JPH0679086A true JPH0679086A (en) 1994-03-22
JP3212155B2 JP3212155B2 (en) 2001-09-25

Family

ID=16953409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23332792A Expired - Lifetime JP3212155B2 (en) 1992-09-01 1992-09-01 Washing machine

Country Status (1)

Country Link
JP (1) JP3212155B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004106615A1 (en) * 2003-05-28 2004-12-09 Lg Electronics Inc. Washing machine and the control method of the same
US7971301B2 (en) 2003-05-28 2011-07-05 Lg Electronics Inc. Washing machine and the control method of the same
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