JP2876772B2 - Washing machine - Google Patents

Washing machine

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Publication number
JP2876772B2
JP2876772B2 JP2278371A JP27837190A JP2876772B2 JP 2876772 B2 JP2876772 B2 JP 2876772B2 JP 2278371 A JP2278371 A JP 2278371A JP 27837190 A JP27837190 A JP 27837190A JP 2876772 B2 JP2876772 B2 JP 2876772B2
Authority
JP
Japan
Prior art keywords
motor
cloth
water level
water
control means
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.)
Expired - Lifetime
Application number
JP2278371A
Other languages
Japanese (ja)
Other versions
JPH04152980A (en
Inventor
悟 岡西
真一 熊谷
兼一 赤坂
正訓 竹川
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2278371A priority Critical patent/JP2876772B2/en
Publication of JPH04152980A publication Critical patent/JPH04152980A/en
Application granted granted Critical
Publication of JP2876772B2 publication Critical patent/JP2876772B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 産業上の利用分野 本発明は洗い,すすぎ,脱水の一連の洗濯行程を自動
的に行う洗濯機の制御装置に関するものである。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a washing machine that automatically performs a series of washing steps of washing, rinsing, and dehydrating.

従来の技術 従来の洗濯機の制御装置は、第6図に示すような構成
になっていた。以下、その動作について説明する。
2. Description of the Related Art A conventional washing machine control device has a configuration as shown in FIG. Hereinafter, the operation will be described.

まず、設定手段12により工程内容を設定した後に運転
を開始すると、工程制御手段8は給水弁7を動作し設定
水位まで給水した後、モータ制御手段9を動作させてモ
ータ5を第7図に示すような設定水位に応じた一定の反
転周期で所定時間駆動し撹拌翼3により洗濯物の洗いを
行うようになっていた。
First, when the operation is started after the process contents are set by the setting means 12, the process control means 8 operates the water supply valve 7 to supply water to the set water level, and then operates the motor control means 9 to turn the motor 5 in FIG. The apparatus is driven for a predetermined time at a constant reversal cycle corresponding to the set water level as shown, and the washing is performed by the stirring blade 3.

発明が解決しようとする課題 しかしながら、このような方法では洗濯の撹拌時の撹
拌翼の反転周期が設定水位に対応して一定の時間に固定
されており、この時間は、撹拌時の布の動きや洗浄性能
を満たすように各設定水位の定格布量に応じて設定され
ている。そのため水位が高水位で布負荷量が少なめの場
合などには撹拌水流が強過ぎる状態となり洗濯槽内から
周囲に洗濯水が飛び散り、洗濯機周辺を濡らしてしまう
という課題があった。
However, in such a method, the reversal cycle of the stirring blade at the time of stirring of washing is fixed to a fixed time corresponding to the set water level, and this time is the movement of the cloth at the time of stirring. It is set according to the rated cloth amount of each set water level so as to satisfy the cleaning performance. For this reason, when the water level is high and the cloth load is small, the stirring water flow is too strong, and the washing water scatters from the inside of the washing tub to the surroundings, causing a problem that the periphery of the washing machine gets wet.

本発明は上記課題に鑑み、布量に対して撹拌水流が強
過ぎる状態を防止して極性な水流で洗濯を行い、洗濯槽
内から周囲に洗濯水が飛び散るのを防止することを目的
とする。
In view of the above problems, an object of the present invention is to prevent a state in which a stirring water flow is too strong with respect to a cloth amount, perform washing with a polar water flow, and to prevent washing water from splashing from the inside of a washing tub to the surroundings. .

課題を解決するための手段 上記目的を達成するために本発明は、槽内に配した撹
拌翼を駆動するモータと、このモータへの通電制御を行
うモータ制御手段と、前記槽内への給水を制御する給水
制御手段と、前記槽内の水位を検知する水位検知手段
と、洗濯機の工程を制御する工程制御手段と、前記モー
タの回転数に相関した物理量を検知するモータ状態検知
手段と、このモータ状態検知手段からの信号と布負荷料
判定基準値を比較し、布負荷量を判定する布負荷量判定
手段を備えた洗濯機において、前記工程制御手段は、前
記布負荷量判定手段で判定した布量に対応する水位が高
水位の場合、前記布量に対応した水位まで給水した後、
数回のモータのオンオフ動作を1サイクルとして、複数
サイクルの動作を繰り返し、初回のサイクルを無効と
し、残りのサイクルにおける前記モータ状態検知手段か
らの減衰状態を積算して布の状態を判定し、その後の撹
拌周期を制御するものである。
Means for Solving the Problems In order to achieve the above object, the present invention provides a motor for driving a stirring blade disposed in a tank, a motor control means for controlling power supply to the motor, and a water supply to the tank. Water supply control means for controlling the water level in the tub, a water level detection means, a process control means for controlling the process of the washing machine, and a motor state detection means for detecting a physical quantity correlated to the rotation speed of the motor, A washing machine provided with a cloth load amount determining means for comparing a signal from the motor state detecting means with a cloth load charge determination reference value to determine a cloth load amount; If the water level corresponding to the cloth amount determined in the high water level, after supplying water to the water level corresponding to the cloth amount,
The on / off operation of the motor several times as one cycle, the operation of a plurality of cycles is repeated, the first cycle is invalidated, the attenuation state from the motor state detection means in the remaining cycles is integrated to determine the state of the cloth, The subsequent stirring cycle is controlled.

作 用 この構成により、水が周囲に飛び散りやすい高い水位
の時に撹拌中のオフ時間の前記モータ状態検知手段から
の減衰状態を検知して布の動きの状態を判定することが
でき、この入力に応じて反転時間を制御し洗濯槽内から
周囲に洗濯水が飛び散るのを防止することができる。
Operation With this configuration, it is possible to determine the state of movement of the cloth by detecting the attenuation state from the motor state detection unit during the off time during stirring when the water is at a high water level where water easily scatters around. The reversal time is controlled accordingly to prevent the washing water from scattering from the inside of the washing tub to the surroundings.

実施例 以下、本発明の一実施例を第1図から第5図によって
説明する。本実施例における洗濯機の制御装置の構成は
第1図に示すように、洗濯兼脱水槽(以下洗濯槽と称
す)1を内装する槽2を備え、洗濯槽1の内底部には撹
拌翼3が回転自在に配されている。この撹拌翼3は減速
機構4を介してモータ5により駆動される。また、槽2
の底部には排水弁6が配設され、槽2上方には給水弁7
が配設されている。前記モータ5、排水弁6および給水
弁7は、工程制御手段8により制御されるモータ制御手
段9、排水弁制御手段10、および給水弁制御手段11を介
して各々駆動される。工程制御手段8は設定手段12から
の設定に基づき、工程記憶手段13からの必要なデータを
読みだし、設定内容に基づいた洗濯、すすぎ、脱水行程
を、各種制御手段9〜11の制御により実行する。また、
モータ5の回転数に相関した物理量の一つであるモータ
電圧を検知するために電圧検知手段14をモータ5に接続
している。この電圧検知手段14の電圧波形数を計数する
計数手段15の出力と基準値記憶手段16の出力とは布負荷
量判定手段17に入力されている。布負荷量判定手段17は
槽2内の水位を検知する水位検知手段18の出力とモータ
制御手段9に出力される制御信号も入力している。
Embodiment An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the configuration of the control device of the washing machine according to the present embodiment includes a tub 2 in which a washing and spin-drying tub (hereinafter referred to as a washing tub) 1 is provided. 3 is rotatably arranged. The stirring blade 3 is driven by a motor 5 via a speed reduction mechanism 4. In addition, tank 2
A drain valve 6 is provided at the bottom of the tank, and a water supply valve 7 is provided above the tank 2.
Are arranged. The motor 5, the drain valve 6, and the water supply valve 7 are driven via a motor control means 9, a drain valve control means 10, and a water supply valve control means 11 controlled by a process control means 8, respectively. The process control means 8 reads necessary data from the process storage means 13 based on the setting from the setting means 12, and executes the washing, rinsing and dehydrating steps based on the set contents under the control of various control means 9 to 11. I do. Also,
The voltage detecting means 14 is connected to the motor 5 in order to detect a motor voltage which is one of the physical quantities correlated with the rotation speed of the motor 5. The output of the counting means 15 for counting the number of voltage waveforms of the voltage detecting means 14 and the output of the reference value storage means 16 are input to the cloth load amount determining means 17. The cloth load amount determination means 17 also receives the output of the water level detection means 18 for detecting the water level in the tank 2 and the control signal output to the motor control means 9.

上記構成の洗濯機の制御装置の動作を説明する。ま
ず、設定手段12により工程内容を設定した後に運転を開
始すると、工程制御手段8は水位検知手段18から水位情
報を入力し、最低水位まで給水弁制御手段11を制御して
給水弁7を動作させて槽2内に給水する。次に、工程制
御手段8はモータ制御手段9を制御して、所定時間モー
タ5を駆動して撹拌翼3を回転させる。所定時間経過し
てモータ5の通電停止を布負荷量判定手段17が検知すれ
ば、電圧検知手段14からの波形数を計数手段15により計
数する。そして、布負荷量判定手段17はこの計数手段15
の計数した値と基準値記憶手段16の布負荷量判定基準値
と比較し、槽2内の布負荷量を判定する。このとき、こ
の負荷量判定手段17により判定した布負荷量の情報は工
程制御手段8に送られ、工程制御手段8は布負荷量に基
づいてそれ以降の洗濯,すすぎ,脱水の各行程を制御す
る。布負荷量を判定した後は布負荷量に応じた水位まで
給水弁7を動作させて槽2内に給水しモータ5を駆動し
撹拌翼3を第5図に示すように水位に応じた周期で反転
動作させて洗濯物を所定時間撹拌し洗濯を行う。このと
き、水位が高の場合には次のような水の飛び散り防止動
作を行う。
The operation of the control device for a washing machine having the above configuration will be described. First, when the operation is started after setting the process contents by the setting means 12, the process control means 8 inputs water level information from the water level detecting means 18 and controls the water supply valve control means 11 to the lowest water level to operate the water supply valve 7. Then, water is supplied into the tank 2. Next, the process control means 8 controls the motor control means 9 to drive the motor 5 for a predetermined time to rotate the stirring blade 3. If the cloth load amount determining means 17 detects that the power supply to the motor 5 has stopped after a predetermined time, the number of waveforms from the voltage detecting means 14 is counted by the counting means 15. Then, the cloth load amount determining means 17
Is compared with the cloth load amount determination reference value in the reference value storage means 16 to determine the cloth load amount in the tank 2. At this time, information on the cloth load amount determined by the load amount determining means 17 is sent to the process control means 8, and the process control means 8 controls the subsequent steps of washing, rinsing, and dewatering based on the cloth load amount. I do. After determining the cloth load amount, the water supply valve 7 is operated to the water level corresponding to the cloth load amount to supply water into the tank 2, the motor 5 is driven, and the stirring blade 3 is cycled according to the water level as shown in FIG. And the laundry is agitated for a predetermined time to perform washing. At this time, if the water level is high, the following splash prevention operation is performed.

この動作を第2図〜第4図で具体的に説明する。すな
わち、19はマイクロコンピュータで、第1図で示した工
程制御手段8,工程記憶手段13,計数手段15,基準値記憶手
段16および布負荷量判定手段17を構成している。このマ
イクロコンピュータ19の入力部には、設定手段としての
設定スイッチ12および水位検知手段18が接続されてい
る。また、モータ5は双方向性サイリスタ20a,20b、排
水マグネット6は双方向性サイリスタ20c、給水弁7は
双方向性サイリスタ20dがそれぞれ接続されており、こ
れら双方向性サイリスタ20a〜20dを介して交流電源21が
供給されている。また、双方向性サイリスタ20a〜20dの
ゲートG1,G2,G3,G4とマイクロコンピュータ19の出力部
とが接続され、マイクロコンピュータ19の出力部からの
信号により双方向性サイリスタ20a〜20dのスイッチング
動作を制御する。モータ5の巻線間に接続したコンデン
サ22の両端電圧を検知する電圧検知手段14は、その出力
V0をマイクロコンピュータ19の入力部に出力している。
上記電圧検知手段14は、モータ5に所定時間通電(双方
向性サイリスタ20aまたは20bをON)した後の通電停止期
間に、モータ5のコンデンサ22の両端に発生する電圧を
検知するものである。この検知電圧VCは第3図に示す波
形となる。すなわち、水量に対して布負荷量が少なくて
布の動きが良い場合には、第3図aのT1a期間内で減衰
し、水量に対して布負荷量が多くて布の動きが悪い場合
には、第3図bのT1b期間内で減衰する。この減衰期間
を波計数として計数することにより、布の動きの状態と
相関した情報を得ることができる。
This operation will be specifically described with reference to FIGS. That is, reference numeral 19 denotes a microcomputer, which constitutes the process control means 8, the process storage means 13, the counting means 15, the reference value storage means 16, and the cloth load amount determination means 17 shown in FIG. The input section of the microcomputer 19 is connected to a setting switch 12 and a water level detecting means 18 as setting means. The motor 5 is connected to the bidirectional thyristors 20a and 20b, the drainage magnet 6 is connected to the bidirectional thyristor 20c, and the water supply valve 7 is connected to the bidirectional thyristor 20d. An AC power supply 21 is supplied. Further, the gates G1, G2, G3, G4 of the bidirectional thyristors 20a to 20d are connected to the output of the microcomputer 19, and the switching operation of the bidirectional thyristors 20a to 20d is performed by a signal from the output of the microcomputer 19. Control. The voltage detecting means 14 for detecting the voltage between both ends of the capacitor 22 connected between the windings of the motor 5 has its output
V0 is output to the input unit of the microcomputer 19.
The voltage detecting means 14 detects a voltage generated at both ends of the capacitor 22 of the motor 5 during a power-supply stop period after the motor 5 is energized for a predetermined time (the bidirectional thyristor 20a or 20b is turned on). This detection voltage VC has the waveform shown in FIG. That is, when the cloth load is small with respect to the water amount and the cloth moves well, the cloth attenuates within the period T1a in FIG. 3A, and when the cloth load is large with respect to the water amount and the cloth moves poorly. Attenuates within the period T1b in FIG. 3b. By counting this decay period as a wave count, information correlated with the state of movement of the cloth can be obtained.

次にモータ5の反転動作と計数したデータの処理につ
いて説明する。第4図は水の飛び散り防止を行っている
時のモータ5の反転動作を示すものであり、最初は布の
動きが良くても水が飛び散らない程度の弱い水流(第5
図に示す高水位の反転周期1.0秒ON−0.6秒OFF)で合計3
2回のON−OFFを行う。マイクロコンピュータ19はモータ
5のOFFの期間の波計数を計数しているが、撹拌を開始
した初期は衣類に水が余りしみこんでいなかったりして
状態が不安定であるので第4図のTS1の期間のデータは
無視してTS2〜TS4の期間の波計数の積算値と水飛び防止
のための波計数の基準値を比較し、波計数が基準値以上
であれば衣類が十分撹拌されており布が少量と判断し、
現在の弱い水流のままで同じようにTS1〜TS4の撹拌を続
ける。また波計数が基準値以下であれば布の動きが悪く
なり布が多量と判断し、以後はさらに強い水流(第7図
高水位の反転周期2.0秒ON−1.0秒OFF)で撹拌を続け
る。
Next, the inversion operation of the motor 5 and the processing of the counted data will be described. FIG. 4 shows the reversing operation of the motor 5 when the splashing of water is being performed. At first, a weak water flow such that the water does not splatter even if the cloth moves well (No. 5).
Total of 3 with the high water level reversal cycle shown in the figure 1.0 seconds ON-0.6 seconds OFF)
Perform ON-OFF twice. The microcomputer 19 counts the wave count during the OFF period of the motor 5, but at the beginning of the stirring, the water is not soaked in the clothes and the state is unstable. Ignore the data of the period of the period, compare the integrated value of the wave count in the period of TS2 to TS4 and the reference value of the wave count for preventing water splash, and if the wave count is equal to or more than the reference value, the clothing is sufficiently stirred Judge that the cloth is small,
Continue stirring TS1 to TS4 in the same way with the current weak water flow. If the wave count is less than the reference value, the movement of the cloth deteriorates and it is determined that the cloth is large. Thereafter, the stirring is continued with a stronger water flow (2.0 seconds ON-1.0 seconds OFF of the high water level inversion cycle of FIG. 7).

なお、本実施例では水の飛び散りを未然に防止するた
め、弱い水流で開始して衣類の動きが悪い場合に強い水
流に切り換えたが、逆に強い水流で開始して衣類の動き
が良過ぎる場合に弱い水流に切り換えて洗濯槽からの水
の飛び散りを防止する方法もある。
In the present embodiment, in order to prevent the water from splashing, the operation is started with a weak water flow and switched to a strong water flow when the movement of the clothes is poor. However, the movement of the clothing is started with a strong water flow and the movement of the clothes is too good. In such a case, there is also a method of switching to a weak water flow to prevent splashing of water from the washing tub.

発明の効果 以上のように本実施例によれば、布負荷量判定を行っ
て高水位と判定された場合のみ衣類の撹拌中の動きを検
知しているため洗濯槽からの水の飛び散りを防止するこ
とができると共に、水流が多少強すぎても洗濯槽から水
が飛び散ることのない低い水位では不必要なこのような
動作を行うこともなく基準値を記憶する必要もないとい
う効果がある。また、布の状態検知における初回の1サ
イクルを無視して布状態を判定しているので、布の不安
定状態を無視した精度の高い布状態検知を行うことがで
きる。
Effect of the Invention As described above, according to the present embodiment, the cloth load amount is determined, and only when it is determined that the water level is high, the movement during the stirring of the clothes is detected, so that the splash of water from the washing tub is prevented. In addition to this, there is an effect that there is no need to perform such an unnecessary operation and to store the reference value at a low water level at which water does not scatter from the washing tub even if the water flow is somewhat too strong. Further, since the cloth state is determined ignoring the first cycle of the cloth state detection, the cloth state can be detected with high accuracy ignoring the unstable state of the cloth.

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

第1図は本発明の一実施例における洗濯機の制御装置を
示すブロック図、第2図は同具体的な回路図、第3図は
同電圧検知手段の入力波形図、第4図は同撹拌動作を示
す図、第5図は同水位と水流反転周期の関係を示す図、
第6図は従来例の洗濯機の装置を示す構成図、第7図は
従来例の水位と水流反転周期の関係図である。 1……洗濯槽、3……撹拌翼、3……モータ、7……給
水弁、8……工程制御手段、14……電圧検知手段、15…
…計数手段、16……基準値記憶手段、17……布負荷量判
定手段、18……水位検知手段。
FIG. 1 is a block diagram showing a control device of a washing machine in one embodiment of the present invention, FIG. 2 is a specific circuit diagram, FIG. 3 is an input waveform diagram of the voltage detecting means, and FIG. FIG. 5 is a diagram showing a stirring operation, FIG. 5 is a diagram showing a relationship between the same water level and a water flow inversion cycle,
FIG. 6 is a block diagram showing a conventional washing machine device, and FIG. 7 is a diagram showing the relationship between the water level and the water flow reversal cycle of the conventional example. DESCRIPTION OF SYMBOLS 1 ... Washing tub, 3 ... Agitating blade, 3 ... Motor, 7 ... Water supply valve, 8 ... Process control means, 14 ... Voltage detection means, 15 ...
... Counting means, 16... Reference value storage means, 17... Cloth load amount determining means, 18.

フロントページの続き (72)発明者 竹川 正訓 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 平2−274293(JP,A) 特開 平2−19196(JP,A) 特開 昭62−117590(JP,A) (58)調査した分野(Int.Cl.6,DB名) D06F 33/02 Continuation of front page (72) Inventor Masanori Takekawa 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-2-274293 (JP, A) JP-A-2-19196 (JP) , A) JP-A-62-117590 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) D06F 33/02

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】槽内に配した撹拌翼を駆動するモータと、
このモータへの通電制御を行うモータ制御手段と、前記
槽内への給水を制御する給水制御手段と、前記槽内の水
位を検知する水位検知手段と、洗濯機の工程を制御する
工程制御手段と、前記モータの回転数に相関した物理量
を検知するモータ状態検知手段と、このモータ状態検知
手段からの信号と布負荷料判定基準値を比較し、布負荷
量を判定する布負荷量判定手段を備えた洗濯機におい
て、前記工程制御手段は、前記布負荷量判定手段で判定
した布量に対応する水位が高水位の場合、前記布量に対
応した水位まで給水した後、数回のモータのオンオフ動
作を1サイクルとして、複数サイクルの動作を繰り返
し、初回のサイクルを無効とし、残りのサイクルにおけ
る前記モータ状態検知手段からの減衰状態を積算して布
の状態を判定し、その後の撹拌周期を制御する洗濯機。
A motor for driving a stirring blade disposed in the tank;
Motor control means for controlling power supply to the motor, water supply control means for controlling water supply to the tub, water level detection means for detecting a water level in the tub, and process control means for controlling a process of the washing machine A motor state detecting means for detecting a physical quantity correlated with the number of rotations of the motor; and a cloth load amount determining means for comparing a signal from the motor state detecting means with a cloth load charge determination reference value to determine a cloth load amount. When the water level corresponding to the cloth amount determined by the cloth load amount determining means is a high water level, the process control means supplies water to the water level corresponding to the cloth amount, and then performs several motors. The on / off operation as one cycle, the operation of a plurality of cycles is repeated, the first cycle is invalidated, the attenuation state from the motor state detection means in the remaining cycles is integrated to determine the state of the cloth, Washing machine to control the agitation period of.
JP2278371A 1990-10-16 1990-10-16 Washing machine Expired - Lifetime JP2876772B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2278371A JP2876772B2 (en) 1990-10-16 1990-10-16 Washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2278371A JP2876772B2 (en) 1990-10-16 1990-10-16 Washing machine

Publications (2)

Publication Number Publication Date
JPH04152980A JPH04152980A (en) 1992-05-26
JP2876772B2 true JP2876772B2 (en) 1999-03-31

Family

ID=17596406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2278371A Expired - Lifetime JP2876772B2 (en) 1990-10-16 1990-10-16 Washing machine

Country Status (1)

Country Link
JP (1) JP2876772B2 (en)

Also Published As

Publication number Publication date
JPH04152980A (en) 1992-05-26

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