JPH0739677A - Washing controller for washing machine - Google Patents

Washing controller for washing machine

Info

Publication number
JPH0739677A
JPH0739677A JP5185949A JP18594993A JPH0739677A JP H0739677 A JPH0739677 A JP H0739677A JP 5185949 A JP5185949 A JP 5185949A JP 18594993 A JP18594993 A JP 18594993A JP H0739677 A JPH0739677 A JP H0739677A
Authority
JP
Japan
Prior art keywords
detergent
washing
amount
water
washing machine
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
JP5185949A
Other languages
Japanese (ja)
Other versions
JP3066228B2 (en
Inventor
Takeshi Matsumoto
健 松本
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.)
Sharp Corp
Original Assignee
Sharp Corp
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
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP5185949A priority Critical patent/JP3066228B2/en
Publication of JPH0739677A publication Critical patent/JPH0739677A/en
Application granted granted Critical
Publication of JP3066228B2 publication Critical patent/JP3066228B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE:To supply a detergent at need by detecting the activity of the detergent changing with time by deciding the quantity of the detergent to be supplied corresponding to the change of an output from a detergent activity detecting means during a washing process and automatically supplying the detergent. CONSTITUTION:A motor 6 for washing is driven, the quantity of cloth is detected from a load loaded on a pulsator 5, and water supply is started by opening a water feeding valve after setting the quantity of water to be supplied corresponding to the quantity of cloth. When a conductivity sensor 10 is immensed in water, the initial quantity of a detergent is put in by an automatic detergent put-in means 11. The put-in detergent is mixed/dissolved with supplying water at a detergent/ water mixing part 13 and flows into an inner vessel 3 and at the time of reaching a prescribed water level, the supply of water is stopped by closing the water feeding valve 12. Next, a washing operation is performed by driving the motor 6, the quantity of the detergent to be added is decided by calculating difference between the conductivity, namely, detergent activity after the lapse of a prescribed time and initial activity, and the detergent is supplied. Thus, the lowering of rinse performance due to excess use of the detergent is prevented, the detergent discharged to natural environments can be reduced, and the waste of detergent can be excluded.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は洗濯機における洗濯液の
状態を自動的に検知して最適な洗濯を行うようにする洗
濯機の洗濯制御装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing control device for a washing machine which automatically detects the state of a washing liquid in the washing machine to perform optimum washing.

【0002】[0002]

【従来の技術】従来のこの種の洗濯機の洗濯制御装置に
おいて、電極を直接洗濯液に接触させ、電極間に高周波
電圧を印加して、洗濯液の状態を電極間のインピーダン
スの変化として直接とらえられるようにした電導度セン
サに関する技術は特開平4ー187183に開示されて
いるが、これによると洗濯工程において電導度の変化か
ら洗濯時間を決定するようになっている。
2. Description of the Related Art In a conventional washing control device for a washing machine of this type, electrodes are directly contacted with a washing liquid, and a high frequency voltage is applied between the electrodes to directly change the state of the washing liquid as a change in impedance between the electrodes. A technique relating to an electric conductivity sensor which can be grasped is disclosed in Japanese Patent Laid-Open No. 187183/1992. According to this technique, the washing time is determined from the change in electric conductivity in the washing process.

【0003】すなわち、洗剤活性度を検知することによ
って洗剤量を調整したり、洗剤活性度を一定以上に維持
するような洗濯機の洗濯制御装置にはなっていない。
That is, it is not a washing control device for a washing machine that adjusts the amount of detergent by detecting the detergent activity or maintains the detergent activity above a certain level.

【0004】[0004]

【発明が解決しようとする課題】一般に洗濯において重
要なのは投入した洗剤量ではなく実際に溶け込んで活性
化した洗剤がどれだけあるかである。言い換えると洗剤
活性度がどれだけあるかであるが、上記従来の技術に記
載の洗濯機の洗濯制御装置は布量、水量から決めた洗剤
量を投入し、電導度の変化から洗濯時間を決定するよう
になっているが、活性化した洗剤濃度に変化があっても
洗剤量を補給するようになっていない。
Generally, what is important in washing is not the amount of detergent added, but the amount of detergent actually dissolved and activated. In other words, depending on how much detergent activity there is, the washing control device of the washing machine described in the above conventional technology inputs a detergent amount determined from the amount of cloth and the amount of water, and determines the washing time from the change in conductivity. However, even if the activated detergent concentration changes, the detergent amount is not replenished.

【0005】本発明の目的は、最適な洗剤活性度で洗濯
できるように時々刻々変化する洗剤活性度を検知し、必
要に応じ洗剤を補給する洗濯機の洗濯制御装置を提供す
ることにある。
An object of the present invention is to provide a washing control device for a washing machine which detects a detergent activity which is changing every moment so that the laundry can be washed with an optimum detergent activity and replenishes the detergent as needed.

【0006】[0006]

【課題を解決するための手段】本発明の洗濯機の洗濯制
御装置は上記目的を達成するために、電極を直接洗濯液
に接触させ、電極間に高周波電圧を印加して、洗剤活性
度の変化を電極間のインピーダンス変化すなわち電導度
の変化としてとらえるようにしたものである。そして、
洗濯を開始した所定時間後に洗剤活性度検知手段により
検出した検出結果とそれから所定時間後の検出結果
を比較し、その比較結果に基づいて補給すべき洗剤量を
決定し、洗剤自動投入手段によって洗剤を補給するよう
にしたものである。
In order to achieve the above-mentioned object, the washing control apparatus for a washing machine of the present invention directly contacts the washing liquid with an electrode and applies a high frequency voltage between the electrodes to determine the detergent activity. The change is regarded as a change in impedance between electrodes, that is, a change in conductivity. And
The detection result detected by the detergent activity detection means after a predetermined time from the start of washing is compared with the detection result a predetermined time after that, and the amount of detergent to be replenished is determined based on the comparison result, and the detergent automatic insertion means determines the detergent. It is designed to replenish.

【0007】又、上記洗剤検知手段により供給水の電導
度と洗剤投入後の洗濯液の電導度の比較(上昇)から洗
剤自動投入手段の動作確認をするようにしたものであ
る。
Further, the detergent detecting means confirms the operation of the automatic detergent introducing means by comparing (raising) the conductivity of the supply water with the conductivity of the washing liquid after the detergent is added.

【0008】[0008]

【作用】本発明は上記構成にて、洗剤活性度検知手段に
よって洗濯液の活性度が検出でき、その結果に基づいて
洗剤が補給されるので常に最適な洗剤活性度で洗濯でき
る。
According to the present invention, the detergent activity detecting means can detect the activity of the washing liquid and the detergent is replenished based on the result, so that the laundry can be always washed with the optimum detergent activity.

【0009】従って、洗剤の使い過ぎによるすすぎ性能
の低下、環境への悪影響が防止できる。
Therefore, it is possible to prevent deterioration of the rinsing performance and adverse effects on the environment due to excessive use of the detergent.

【0010】[0010]

【実施例】以下、本発明の洗濯機の洗濯制御装置の一実
施例を図面に基づいて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a washing control device for a washing machine according to the present invention will be described below with reference to the drawings.

【0011】図1は本発明の洗濯機の概略構成を示した
もので、図1において、1は洗濯機全体の外箱で、その
内部に外槽2が配設され、更に外槽2の内部に洗濯槽と
脱水槽を兼ねる内槽3が配設されている。内槽3は周壁
部に脱水孔4がほぼ全域にわたり多数形成されている。
内槽3の内底部には洗濯撹拌用のパルセータ5が配設さ
れている。外槽2の底外面にはモータ6を主とする駆動
機構7が配設されている。
FIG. 1 shows a schematic structure of a washing machine of the present invention. In FIG. 1, reference numeral 1 is an outer box of the entire washing machine, an outer tub 2 is disposed inside the outer box, and an outer tub 2 is further provided. An inner tub 3 serving as both a washing tub and a dehydrating tub is provided inside. A large number of dehydration holes 4 are formed in the inner wall of the inner tank 3 over the entire peripheral wall portion.
A pulsator 5 for washing and stirring is provided at the inner bottom of the inner tub 3. A drive mechanism 7 including a motor 6 is arranged on the outer surface of the bottom of the outer tub 2.

【0012】このほか外槽2の底面には排水弁8及び排
水ホース9も配設されている。更に外槽2の水位を検知
するため、排水弁8の上方から延長した水位ホースの先
端に水位検知手段14が配設されている。外槽2の側壁
下方には洗濯液の高周波電導度を測定する電導度センサ
10が配設されている。
A drain valve 8 and a drain hose 9 are also provided on the bottom surface of the outer tank 2. Further, in order to detect the water level in the outer tub 2, a water level detecting means 14 is provided at the tip of a water level hose extending from above the drain valve 8. Below the side wall of the outer tub 2, a conductivity sensor 10 for measuring the high frequency conductivity of the washing liquid is arranged.

【0013】電導度センサ10は外部接続用端子部10
bを有する一対の不溶性電極例えば白金ーチタン(チタ
ンを基材に白金を被覆例えばメッキしたもの)電極又は
ステンレス電極からなる電極部10aを非導電性の合成
樹脂10cで一体化し、図2のように外槽2に電極面を
垂直にして固着するようになっている。このようにすれ
ば、汚れの付着がない。
The conductivity sensor 10 has a terminal portion 10 for external connection.
A pair of insoluble electrodes having b, for example, platinum-titanium (platinum coated with titanium as a base material) electrodes or electrode portions 10a made of stainless steel electrodes are integrated with a non-conductive synthetic resin 10c, and as shown in FIG. The electrode surface is fixed to the outer tank 2 vertically. In this way, no dirt is attached.

【0014】一方、外箱1の上方には洗剤自動投入手段
11と水道水を外槽2内に供給するための給水弁12と
洗剤を水で流し込む洗剤・水混合部13が設けられてい
る。又、外箱1の上方にはトップカバー(図示せず)が
配設されており、該トップカバー内には制御装置15が
配設されている。
On the other hand, above the outer box 1, there are provided a detergent automatic charging means 11, a water supply valve 12 for supplying tap water into the outer tub 2, and a detergent / water mixing section 13 for pouring the detergent with water. . A top cover (not shown) is provided above the outer box 1, and a control device 15 is provided in the top cover.

【0015】該制御装置15はマイクロコンピュータに
より、比較手段及び洗濯内容変更手段並びに制御手段の
機能を含んで構成されており、図8に示すように、各種
のスイッチから成る入力手段18、布量検知手段16、
水位検知手段14、電導度センサ10や該電導度センサ
10の制御回路やセンサ読み込み回路等で構成される洗
剤活性度検知手段17、洗剤自動投入手段11の駆動源
モータ23を駆動するための駆動回路19、前記給水弁
12を駆動するための駆動回路20、前記洗濯用モータ
6を駆動するための駆動回路21、排水弁8を駆動する
ための駆動回路22、液温を検知するための液温検知手
段23等から構成されている。
The control device 15 is constituted by a microcomputer including the functions of a comparing means, a washing content changing means, and a controlling means. As shown in FIG. 8, the input means 18 including various switches and the cloth amount. Detection means 16,
A drive for driving the detergent level detecting means 17 including the water level detecting means 14, the electric conductivity sensor 10, the control circuit of the electric conductivity sensor 10 and the sensor reading circuit, and the drive source motor 23 of the automatic detergent introducing means 11. Circuit 19, drive circuit 20 for driving the water supply valve 12, drive circuit 21 for driving the washing motor 6, drive circuit 22 for driving the drain valve 8, liquid for detecting liquid temperature It is composed of the temperature detecting means 23 and the like.

【0016】なお、図4は洗剤の標準使用量を1とした
時の洗剤濃度比と電導度の関係を示したもので、洗剤濃
度比に対して電導度が上昇する関係がある。電導度は温
度によって変動するが、液温を検知し温度補正すること
により正確な制御を行うようになっている。
FIG. 4 shows the relationship between the detergent concentration ratio and the electrical conductivity when the standard amount of detergent used is 1, and the electrical conductivity increases with the detergent concentration ratio. Although the electric conductivity varies depending on the temperature, accurate control is performed by detecting the liquid temperature and correcting the temperature.

【0017】次に、上記構成の洗濯機の動作と電導度検
知による洗濯性制御方法について説明する。洗濯物を投
入し、電源スイッチを「入」にして、「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 having the above-mentioned structure and the method of controlling the washability by detecting the conductivity will be described. Put the laundry in, set the power switch to "ON", and press the "Start" button to execute fully automatic operation.

【0018】まず、始めに洗濯用モータ6を駆動し、パ
ルセータ5にかかる負荷から洗濯物の量(布量)を検知
し、該布量に応じた給水量を設定し、給水弁12が開
き、給水を開始する。約1分後(一例・・・電導度セン
サ10が水に浸されるまで。この状態を電導度センサ1
0で検知する。すなわち、電導度センサ10が水に没す
ると電導度が上昇することで確認できる。この時の電導
度すなわち洗剤活性度をCwとする。)に洗剤自動投入
手段11により初期洗剤量(例えば布量、水量から決め
た標準使用量の60%)を投入する。
First, the washing motor 6 is first driven, the amount of laundry (amount of laundry) is detected from the load applied to the pulsator 5, the amount of water supply is set according to the amount of laundry, and the water supply valve 12 is opened. , Start water supply. About 1 minute later (example: until the conductivity sensor 10 is immersed in water.
Detect with 0. That is, it can be confirmed that the conductivity increases when the conductivity sensor 10 is submerged in water. The electric conductivity at this time, that is, the detergent activity is defined as Cw. ) Is charged with the initial detergent amount (for example, 60% of the standard amount of use determined from the amount of cloth and the amount of water) by the automatic detergent adding means 11.

【0019】投入された洗剤は洗剤・水混合部13で給
水により混合・溶解しながら内槽3(外槽2)中に流し
込まれる。所定水位になれば、給水弁12を閉じ、給水
を止める。
The introduced detergent is poured into the inner tank 3 (outer tank 2) while being mixed and dissolved by the water supply in the detergent / water mixing section 13. When the water level reaches a predetermined level, the water supply valve 12 is closed and the water supply is stopped.

【0020】次にモータ6を駆動させて洗い運転を行
う。1〜4分経過後(この間に洗剤の溶解、水溶性成分
の溶出による電導度の上昇があるが、ほぼ安定化する時
点を捕らえ、この時の電導度すなわち洗剤活性度をCo
として読み込む。図5は洗剤の溶解時間の一例を電導度
の変化でみたものであるが、概ねこの時間内に電導度が
安定する。)の電導度すなわち洗剤活性度を読み込みC
oとする。その後1分又は2分後の電導度すなわち洗剤
活性度Cnを読み込む。そして、X=Co−Cnを算出す
る。この値Xに応じて追加する洗剤量を決定する。
Next, the motor 6 is driven to perform the washing operation. After 1-4 minutes (during which dissolution of the detergent, there is a rise in the conductivity due to dissolution of a water-soluble component, capturing the time of almost stabilized, the electric conductivity i.e. detergent activity at this C o
Read as. FIG. 5 shows an example of the dissolution time of the detergent by changing the electric conductivity, and the electric conductivity is stable within this time. ) Conductivity, that is, detergent activity is read and C
o . After 1 or 2 minutes, the conductivity, that is, the detergent activity C n is read. Then, X = C o −C n is calculated. The amount of detergent to be added is determined according to this value X.

【0021】例えば、図7の(2)の場合ならば、標準
使用量の20%を補給する。その結果、電導度は破線の
(2′)のようにはならずに、(2)のようになる。電
導度すなわち洗剤活性度C。のレベルは洗剤の表面張力
やpH等の活性度からみて限界ミセル濃度を越えている
ことはもちろん所定の洗浄度を得るために必要なものに
なっている。洗剤が汚れの乳化、溶解で消耗すると、図
6のように洗剤活性度すなわち電導度が低下する。
For example, in the case of (2) in FIG. 7, 20% of the standard amount used is replenished. As a result, the electric conductivity does not become like the broken line (2 ') but becomes as shown in (2). Conductivity or detergent activity C. The above level exceeds the limit micelle concentration in view of the surface tension of the detergent and the activity such as pH, and it is of course necessary to obtain a predetermined degree of washing. When the detergent is consumed by emulsifying and dissolving the dirt, the detergent activity, that is, the electric conductivity is lowered as shown in FIG.

【0022】従って、このC。を下限としてこれ以下の
電導度すなわち洗剤活性度にならないように電導度セン
サ10で見張るようになっている。一般に洗剤の補給は
第1次だけで完了するはずであるが、もし、所定の洗濯
時間内に電導度すなわち洗剤活性度がCoより低下する
ことになれば、再び洗剤を前記と同量の標準使用量の2
0%を補給する。この場合、所定の洗濯時間の終了間際
(例えば2分以内)であれば、洗濯時間の2乃至5分の
延長を行うようになっている。
Therefore, this C. Is set as the lower limit, and the electric conductivity sensor 10 keeps watch so that the electric conductivity, that is, the detergent activity below the lower limit is not reached. Generally although supplementation of the detergent should be completed by only the first-order, if the electric conductivity i.e. detergent activity within a predetermined washing time if that drops from C o, detergent of the same amount again Standard usage 2
Supply 0%. In this case, if the predetermined washing time is about to end (for example, within 2 minutes), the washing time is extended by 2 to 5 minutes.

【0023】なお、図7において、例えば(1)の場合
は標準使用量の10%を補給し、同様に、(3)の場合
には標準使用量の40%を補給し、更に、(4)の場合
には標準使用量の80%を補給するようになっている。
また、(0)の場合にはそのままとする。
In FIG. 7, for example, in the case of (1), 10% of the standard usage amount is replenished, and similarly, in the case of (3), 40% of the standard usage amount is replenished, and further, (4 In the case of), 80% of the standard amount used is replenished.
Further, in the case of (0), it is left as it is.

【0024】別の実施例として洗剤投入までの説明をす
ると、まず上記の一実施例と同様に洗濯物を投入し、電
源スイッチを「入」にして、「スタート」ボタンを押す
と、全自動運転を実行する。まず始めに布量検知水位を
設定し、給水弁12が開き、給水を開始する。規定水位
に達すると、一旦給水を停止し、この時の電導度を電導
度センサ10で検知する。すなわち、電導度センサ10
が水に没したときの電導度を検知し、この時の電導度す
なわち洗剤活性度をCWとする。(この時点では洗剤は
なし。)そして洗濯用モータ6を駆動し、パルセータ5
にかかる負荷から洗濯物の量(布量)を検知し、該布量
に応じた給水量を設定し、再び給水弁12が開き、給水
を開始する。そして洗剤自動投入手段11により初期洗
剤量(例えば布量、水量から決めた標準使用量の60
%)を投入する。以下、上記実施例と同様に動作するよ
うになっている。
As another example, a description will be given up to the introduction of a detergent. First, as in the case of the above-described one embodiment, the laundry is put in, the power switch is turned "on", and the "start" button is pushed. Carry out driving. First, the cloth amount detection water level is set, the water supply valve 12 is opened, and water supply is started. When the prescribed water level is reached, the water supply is temporarily stopped and the electric conductivity at this time is detected by the electric conductivity sensor 10. That is, the conductivity sensor 10
The electric conductivity when is immersed in water is detected, and the electric conductivity at this time, that is, the detergent activity is defined as C W. (At this point, there is no detergent.) Then, the washing motor 6 is driven to drive the pulsator 5
The amount of laundry (amount of cloth) is detected from the load applied to, the amount of water supply is set according to the amount of cloth, the water supply valve 12 is opened again, and water supply is started. Then, the automatic detergent supply means 11 is used to set an initial detergent amount (for example, a standard use amount of 60 determined from the amount of cloth and the amount of water).
%). Hereafter, the same operation as in the above embodiment is performed.

【0025】[0025]

【発明の効果】本発明の洗濯機の洗濯制御装置は上記の
ような構成であるから、請求項1記載の発明は洗剤の活
性度を測定しているので、この測定値から洗濯液が洗浄
力をもっているかどうか知ることができ、その結果、洗
剤の活性度が低下すれば、洗剤の補給で対応できるの
で、予め多めに洗剤を投入することもなくなり、従っ
て、洗剤の使い過ぎによるすすぎ性能の低下防止、自然
環境への放出洗剤の軽減、ムダの排除等が図られ、有意
義なものとなる。
Since the laundry control device for a washing machine of the present invention has the above-mentioned construction, the invention according to claim 1 measures the activity of the detergent, and the washing liquid is washed from this measured value. You can know whether you have the power, and if the activity of the detergent decreases as a result, you can deal with it by replenishing the detergent, so you do not have to add too much detergent in advance, so you can improve the rinsing performance by overusing the detergent. Preventing deterioration, reducing the amount of detergent released to the natural environment, eliminating waste, etc. will be significant.

【0026】また、請求項2記載の発明は電導度センサ
によって洗剤活性度が検知できる。電導度の低下から洗
剤活性度の低下がわかる。そして、請求項3記載の発明
は洗剤の溶解状態が電導度の上昇で分かる。そしてまた
請求項4記載の発明は初期洗剤量は布量、水量から決定
し、標準使用量の100%未満とするため洗剤を使い過
ぎることはない。さらに請求項5記載の発明は電導度の
比較により判定するので、供給水の違いによる電導度の
変動は修正することができる。その上請求項6記載の発
明は洗濯中は常に洗剤下限濃度を維持できるように洗剤
量を決定、補給するため、洗濯期間中に洗剤の力が遺憾
なく発揮できる。
In the invention according to claim 2, the detergent activity can be detected by the conductivity sensor. A decrease in detergent activity can be seen from a decrease in conductivity. Further, in the invention according to claim 3, the dissolved state of the detergent can be seen from the increase in the electric conductivity. In the invention according to claim 4, the initial detergent amount is determined from the amount of cloth and the amount of water, and is less than 100% of the standard amount of use, so that the detergent is not overused. Further, according to the invention of claim 5, since the judgment is made by comparing the electric conductivities, the fluctuation of the electric conductance due to the difference of the supply water can be corrected. Moreover, in the invention of claim 6, the detergent amount is determined and supplied so that the lower limit concentration of the detergent can be maintained during washing, so that the detergent can exert its power fully during the washing period.

【0027】また、請求項7に記載の発明は万一、洗剤
下限濃度を下回っても洗剤の再補給システム(制御)に
より洗剤下限濃度を維持できる。そして請求項8記載の
発明は、所定の洗濯時間終了間際に洗剤を再補給したと
きには、洗濯時間の延長で対応しているので、ムダなく
十分な洗濯ができる。そしてまた請求項9記載の発明は
電導度センサの電極面が垂直となるように取り付けてあ
るので、汚れの堆積によるセンサ性能の低下が防止でき
る。さらに請求項10記載の発明は洗剤の投入検知が電
導度の上昇でわかる。
Further, in the invention described in claim 7, even if the detergent lower limit concentration is exceeded, the detergent lower limit concentration can be maintained by the detergent replenishment system (control). According to the eighth aspect of the invention, when the detergent is replenished just before the end of the predetermined washing time, the washing time can be extended, so that sufficient washing can be performed without waste. Further, according to the invention described in claim 9, since the electrode surface of the conductivity sensor is mounted so as to be vertical, deterioration of the sensor performance due to accumulation of dirt can be prevented. Further, in the invention according to the tenth aspect, the detection of the introduction of the detergent can be recognized by the increase in the electric conductivity.

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

【図1】本発明の洗濯機の概略構成を示す要部断面図で
ある。
FIG. 1 is a cross-sectional view of essential parts showing a schematic configuration of a washing machine of the present invention.

【図2】図1の電導度センサを上方からみた取り付け要
部断面図である。
FIG. 2 is a cross-sectional view of a main part of the mounting, where the conductivity sensor of FIG. 1 is viewed from above.

【図3】図1の電導度センサの電極面及び接続用端子部
の要部平面図である。
3 is a plan view of an essential part of an electrode surface and a connecting terminal portion of the conductivity sensor of FIG.

【図4】洗剤濃度比と電導度の関係の一例の説明図であ
る。
FIG. 4 is an explanatory diagram of an example of a relationship between a detergent concentration ratio and an electric conductivity.

【図5】洗剤の溶解時間と電導度の関係の一例の説明図
である。
FIG. 5 is an explanatory diagram showing an example of the relationship between the dissolution time of a detergent and the electric conductivity.

【図6】油汚れ比(泥汚れ比)と電導度の一例の説明図
である。
FIG. 6 is an explanatory diagram of an example of an oil dirt ratio (mud dirt ratio) and an electric conductivity.

【図7】本発明の洗濯中の電導度の変化及び洗剤補給に
よる電導度変化を説明するために示した模式図である。
FIG. 7 is a schematic diagram for explaining a change in electric conductivity during washing and a change in electric conductivity due to detergent replenishment according to the present invention.

【図8】本発明の洗濯機の洗濯制御装置の一実施例を示
す電子制御手段の概略構成図である。
FIG. 8 is a schematic configuration diagram of electronic control means showing an embodiment of a washing control device for a washing machine of the present invention.

【図9】本発明の洗濯機の洗濯制御装置の洗いの運転動
作についての制御内容を示すフローチャートである。
FIG. 9 is a flowchart showing the control contents of the washing operation of the washing control device for the washing machine of the present invention.

【符号の説明】[Explanation of symbols]

2 外槽 8 排水弁 10 電導度センサ 11 洗剤自動投入手段 12 給水弁 2 Outer tank 8 Drain valve 10 Conductivity sensor 11 Detergent automatic charging means 12 Water supply valve

Claims (10)

【特許請求の範囲】[Claims] 【請求項1】 洗剤を自動投入する洗剤自動投入手段と
洗濯液の洗剤活性度を検出する洗剤活性度検知手段を備
え、その洗剤自動投入手段にて初期洗剤量を投入した
後、洗濯工程中に上記洗剤活性度検知手段からの出力変
化に対応して補給すべき洗剤量を決定し、洗剤を自動的
に補給する洗剤自動補給手段を備えたことを特徴とする
洗濯機の洗濯制御装置。
1. A washing machine is provided with an automatic detergent feeding means for automatically feeding a detergent and a detergent activity detecting means for detecting a detergent activity of a washing liquid, and after the initial detergent amount is fed by the detergent automatic feeding means. 1. A washing control apparatus for a washing machine, further comprising: a detergent automatic replenishing means for automatically replenishing the detergent by determining the amount of detergent to be replenished in accordance with a change in the output from the detergent activity detecting means.
【請求項2】 上記洗剤活性度検知手段として洗濯液の
電気伝導度を検出する電導度センサを具備し、検出した
電導度の変化において電導度の低下から洗剤活性度の低
下状態を検知することを特徴とする請求項1記載の洗濯
機の洗濯制御装置。
2. A detergent activity detecting means is provided with an electrical conductivity sensor for detecting electrical conductivity of a washing liquid, and a state of detergent activity is detected from a decrease in electrical conductivity when the detected electrical conductivity changes. The washing control device for the washing machine according to claim 1.
【請求項3】 上記初期洗剤量による洗濯開始から例え
ば1分乃至4分経過後の電導度の最大値と供給水の電導
度との比較から洗剤の溶解状態及び水溶性の汚れ成分の
溶解状態を検知することを特徴とする洗濯機の洗濯制御
装置。
3. The dissolved state of the detergent and the dissolved state of the water-soluble soil component are determined by comparing the maximum value of the electric conductivity and the electric conductivity of the feed water, for example, 1 minute to 4 minutes after the start of washing with the initial detergent amount. Is a washing control device for a washing machine.
【請求項4】 上記初期洗剤量は布量、水量から決定
し、標準使用量の100%未満としたことを特徴とする
請求項1記載の洗濯機の洗濯制御装置。
4. The washing control apparatus for a washing machine according to claim 1, wherein the initial detergent amount is determined from the amount of cloth and the amount of water and is less than 100% of the standard amount of use.
【請求項5】 上記初期洗剤量による洗濯開始から例え
ば1分乃至4分の所定時間経過後の電導度とその後例え
ば1又は2分の所定時間経過後の電導度の比較から補給
すべき洗剤量決定することを特徴とする請求項1記載の
洗濯機の洗濯制御装置。
5. The amount of detergent to be replenished by comparing the electric conductivity after a predetermined time has passed, for example, 1 minute to 4 minutes from the start of washing with the initial detergent amount, and the electric conductivity after a predetermined time has passed, for example, 1 or 2 minutes. The washing control device for a washing machine according to claim 1, wherein the washing control device is determined.
【請求項6】 上記洗濯工程中は常に洗剤下限濃度を維
持できるように洗剤量を決定し、洗剤を補給することを
特徴とする請求項1記載の洗濯機の洗濯制御装置。
6. The washing control apparatus for a washing machine according to claim 1, wherein the amount of detergent is determined and the detergent is replenished so that the lower limit concentration of the detergent can be constantly maintained during the washing process.
【請求項7】 上記洗剤下限濃度が所定洗濯時間内にお
いて万一下回った時には洗剤を再補給することを特徴と
する請求項6記載の洗濯機の洗濯制御装置。
7. The washing control apparatus for a washing machine according to claim 6, wherein the detergent is replenished when the lower limit concentration of the detergent falls below a predetermined washing time.
【請求項8】 上記洗剤を再補給した時には例えば2乃
至5分の所定の洗濯時間を追加することを特徴とする請
求項7記載の洗濯機の洗濯制御装置。
8. The washing control apparatus for a washing machine according to claim 7, wherein a predetermined washing time of, for example, 2 to 5 minutes is added when the detergent is replenished.
【請求項9】 外部接続用端子部を有する不溶性電極か
らなる一対の電極部を非導電性の合成樹脂で一体化し、
該電極面が垂直になるように水槽の壁面もしくは排水経
路に取り付けてなる電導度センサを備えたことを特徴と
する洗濯機の洗濯制御装置。
9. A pair of electrode parts made of an insoluble electrode having a terminal part for external connection is integrated with a non-conductive synthetic resin,
A washing control apparatus for a washing machine, comprising a conductivity sensor mounted on a wall surface of a water tank or a drainage path so that the electrode surface is vertical.
【請求項10】 上記洗剤自動投入手段の動作の確認を
洗剤活性度検知手段によって電導度の変化(主として上
昇)として検知することを特徴とする請求項1記載の洗
濯機の洗濯制御装置。
10. The washing control apparatus for a washing machine according to claim 1, wherein the confirmation of the operation of the automatic detergent introducing means is detected by the detergent activity detecting means as a change (mainly an increase) in electric conductivity.
JP5185949A 1993-07-28 1993-07-28 Washing machine washing control device Expired - Fee Related JP3066228B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5185949A JP3066228B2 (en) 1993-07-28 1993-07-28 Washing machine washing control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5185949A JP3066228B2 (en) 1993-07-28 1993-07-28 Washing machine washing control device

Publications (2)

Publication Number Publication Date
JPH0739677A true JPH0739677A (en) 1995-02-10
JP3066228B2 JP3066228B2 (en) 2000-07-17

Family

ID=16179703

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3066228B2 (en)

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