JPH0994368A - Dehydration control method for washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce faults due to detergent foaming at the time of a dehydration process after washing, to reduce the generation of the nasty smell and smoke, etc., of a motor and to perform a smooth washing process. SOLUTION: In the dehydration process after washing, the rotation of a spinning tub is made weak before performing continuous dehydration after intermittent dehydration and foam generated during the intermittent dehydration is discharged. Thus, since the foam stored in an outer tank is discharged before starting the continuous dehydration, detergenet foaming faults at the time of the dehydration process are reduced, the generation of the nasty smell and the smoke, etc., from the motor is reduced and the smooth washing process is performed.

Description

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

【０００１】[0001]

【発明の属する技術分野】本発明は、洗濯機の脱水制御
方法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 machine dehydration control method.

【０００２】[0002]

【従来の技術】従来の洗い後の脱水行程は、間欠脱水終
了後連続脱水を行うようにしている。2. Description of the Related Art In the conventional dehydration process after washing, continuous dehydration is performed after the completion of intermittent dehydration.

【０００３】[0003]

【発明が解決しようとする課題】上記従来技術では洗い
後の脱水行程において、間欠脱水途中に洗濯兼脱水槽と
外槽の間に泡が発生した場合でも連続脱水をすぐに行う
ため、洗剤発泡障害が発生しやすい。In the prior art described above, in the dehydration process after washing, even if bubbles are generated between the washing / dehydrating tank and the outer tank during the intermittent dehydration, continuous dehydration is immediately performed. Prone to failure.

【０００４】洗剤発泡障害が発生した場合、モータにか
かる負担が大きくなり、モータに流れる電流の増大か
ら、モータからの異臭，発煙等が発生する。When a detergent foaming fault occurs, the load on the motor increases, and an increase in the current flowing through the motor causes an offensive odor, smoke, etc. from the motor.

【０００５】また、洗濯兼脱水槽が定格回転数まで達し
ないうちにすすぎ行程に進むため、衣類内の水分に含ま
れる洗濯水が十分に脱水できないため、すすぎ性能の低
減という問題も生じる。Further, since the washing / dehydrating tub proceeds to the rinsing process before the rated rotation speed is reached, the washing water contained in the water in the clothes cannot be sufficiently dehydrated, which causes a problem that the rinsing performance is reduced.

【０００６】本発明の目的は、洗い後の脱水行程を円滑
に行い、且つすすぎ性能の向上を図ることにある。An object of the present invention is to smoothly perform the dehydration process after washing and to improve the rinsing performance.

【０００７】[0007]

【課題を解決するための手段】上記目的を達成するた
め、本発明では衣類に含まれる含水量が多い場合、洗い
後の脱水行程中にて、間欠脱水終了後にモータを停止さ
せ、洗濯兼脱水槽と外槽の間に発生した泡を排出し、そ
の後連続脱水を行い、すすぎ行程を行う。In order to achieve the above object, in the present invention, when the water content of clothes is large, the motor is stopped after the completion of intermittent dehydration during the dehydration process after washing to perform washing and removal. The bubbles generated between the water tank and the outer tank are discharged, and then continuous dehydration is performed and a rinsing process is performed.

【０００８】[0008]

【発明の実施の形態】本発明の実施例を図面に基づいて
説明する。Embodiments of the present invention will be described with reference to the drawings.

【０００９】本発明の一実施例を採用した洗濯機は図１
に示すように、鋼板性の外枠１内の吊り棒２およびコイ
ルバネや弾性ゴムからなる防振装置３によって合成樹脂
製の外槽４を吊架する構成となっており、吊り棒２およ
び防振装置３は４個設けている。A washing machine adopting an embodiment of the present invention is shown in FIG.
As shown in FIG. 5, the suspension rod 2 in the steel frame-shaped outer frame 1 and the vibration isolator 3 made of a coil spring or elastic rubber suspend the synthetic resin outer tank 4, and the suspension rod 2 and Four shaking devices 3 are provided.

【００１０】洗濯するための水を溜める外槽４内には、
合成樹脂製の洗濯兼脱水槽５を回転自在に設ける。In the outer tub 4 for storing water for washing,
A washing and dewatering tub 5 made of synthetic resin is rotatably provided.

【００１１】洗濯兼脱水槽５には多数の脱水孔５ａを設
け、中央底部にはパルセータ若しくはアジテータからな
る撹拌翼６を回転可能に設ける。A large number of dehydration holes 5a are provided in the washing / dehydrating tank 5, and a stirring blade 6 made of a pulsator or an agitator is rotatably provided at the central bottom portion.

【００１２】洗い作業、およびすすぎ作業時には洗濯兼
脱水槽５を静止させ撹拌翼６を時計方向および反時計方
向に回転させる。During washing and rinsing operations, the washing / dehydrating tank 5 is stopped and the stirring blades 6 are rotated clockwise and counterclockwise.

【００１３】また、脱水回転時は洗濯兼脱水槽５を一方
向に回転させる。撹拌翼６および、洗濯兼脱水槽５の回
転は、駆動装置７により行われる。During the spin-drying rotation, the washing and spin-drying tub 5 is rotated in one direction. The stirring blade 6 and the washing / dehydrating tub 5 are rotated by a drive device 7.

【００１４】駆動装置７はモータ８と、このモータ８の
回転を撹拌翼６，若しくは洗濯兼脱水槽５に伝達するた
めのプーリ９ａ，９ｂやベルト９ｃからなる伝達手段９
と洗いおよびすすぎ時に撹拌翼６のみを回転させたりあ
るいは、脱水時に洗濯兼脱水槽５を回転させたりするク
ラッチ装置１０とその切換を行うソレノイド１１，排水
を司る排水装置１５からなる。The drive unit 7 includes a motor 8 and transmission means 9 including a belt 9c and pulleys 9a and 9b for transmitting the rotation of the motor 8 to the stirring blades 6 or the washing / dehydrating tank 5.
A clutch device 10 for rotating only the stirring blade 6 at the time of washing and rinsing, or a washing and spinning tub 5 for spin-drying, a solenoid 11 for switching between them, and a drainage device 15 for draining.

【００１５】駆動装置７は外槽４の底面に鋼板製の支持
板１２を用いて固定する。The driving device 7 is fixed to the bottom surface of the outer tank 4 by using a support plate 12 made of a steel plate.

【００１６】外槽４には外槽４内の水の圧力を水位セン
サ１３に伝達するＰＳチューブ１４を接続する導入口４
ａが設けてある。An inlet 4 for connecting a PS tube 14 for transmitting the water pressure in the outer tank 4 to the water level sensor 13 to the outer tank 4.
a is provided.

【００１７】外枠１の上部には洗濯物を投入する投入口
１７ａとコントローラ等の電気部品を収納する操作箱１
７ｂとを形成した合成樹脂製のトップカバー１７が設け
られてある。An operation box 1 for accommodating a loading port 17a for loading laundry and electric parts such as a controller is provided on the outer frame 1.
7b is provided with a top cover 17 made of synthetic resin.

【００１８】投入口１７ａには合成樹脂製のフタ１８を
設ける。A lid 18 made of synthetic resin is provided at the inlet 17a.

【００１９】操作箱１７ｂの上面には操作パネル２１が
取付けてあり、操作箱１７ｂ内には給水電磁弁２４を設
ける。An operation panel 21 is attached to the upper surface of the operation box 17b, and a water supply solenoid valve 24 is provided in the operation box 17b.

【００２０】操作箱１７ｂ内に配置した水位センサ１３
は外槽４内の水の圧力を検出することにより、規定水位
まで水が溜ったかどうか判定する。The water level sensor 13 arranged in the operation box 17b
By detecting the pressure of water in the outer tub 4, it is determined whether or not water has accumulated up to a specified water level.

【００２１】水位センサ１３にはコア，コイル，ばね等
から構成される。The water level sensor 13 comprises a core, a coil, a spring and the like.

【００２２】洗濯，すすぎ，脱水等を制御するコントロ
ーラ部は収納箱３１内に配置する。操作パネル２１に
は、電源スイッチボタン２９および外部操作スイッチ３
０が配置されている。A controller for controlling washing, rinsing, dehydration, etc. is arranged in the storage box 31. The operation panel 21 includes a power switch button 29 and an external operation switch 3.
0 is arranged.

【００２３】図２は操作パネル２１を示したものであ
る。この操作パネル２１には表示部３２，外部操作スイ
ッチ３０，スタートボタン３３が設けられている。FIG. 2 shows the operation panel 21. The operation panel 21 includes a display unit 32, an external operation switch 30, and a start button 33.

【００２４】表示部３２には、水位，洗い，すすぎ，脱
水，予約時間，コース設定の情報が表示される。The display unit 32 displays information on water level, washing, rinsing, dehydration, reserved time, and course setting.

【００２５】外部操作スイッチ３０には水位切替え，洗
い，すすぎ，脱水，予約時間，各洗濯コースを選択設定
するセレクトスイッチのボタンが設けられている。The external operation switch 30 is provided with buttons of a select switch for selectively setting water level switching, washing, rinsing, dehydration, reserved time, and each washing course.

【００２６】図３は洗濯機全体の回路を簡略して示して
おり、中央処理回路３４，駆動回路３５は、コントロー
ラ部としてまとめられて洗濯機本体の収納箱３１に配置
されている。FIG. 3 schematically shows the entire circuit of the washing machine. The central processing circuit 34 and the drive circuit 35 are arranged as a controller unit in a storage box 31 of the washing machine body.

【００２７】モータ８，給水電磁弁２４としての給水
弁，排水装置１５としての排水弁，洗濯，すすぎ，脱水
等のセレクトスイッチ３６，水位センサ１３，布量・布
質判定のための布量・布質センサ３７，脱水中の異常振
動防止等を図る安全スイッチ５０をもっている。The motor 8, the water supply valve as the water supply solenoid valve 24, the drainage valve as the drainage device 15, the selection switch 36 for washing, rinsing, dehydration, etc., the water level sensor 13, the cloth quantity and the cloth quantity for judging the cloth quality, It has a cloth quality sensor 37 and a safety switch 50 for preventing abnormal vibration during dehydration.

【００２８】図４は布量・布質検知を行う布量・布質セ
ンサ３７の回路を示している。FIG. 4 shows a circuit of the cloth amount / cloth quality sensor 37 for detecting the cloth amount / cloth quality.

【００２９】布量検知制御とは、まず洗濯兼脱水槽５内
に適当な衣類を投入し、電源スイッチボタン２９を押
し、スタートボタン３３を押すことによりモータ８が運
転する。In the cloth amount detection control, first, an appropriate garment is put into the washing / dehydrating tub 5, the power switch button 29 is pressed, and the start button 33 is pressed to operate the motor 8.

【００３０】モータ８の運転は中央処理回路３４の指令
によりトライアック３７ａと37ｂのゲートに必要に応
じ、交互に信号を送ることによりモータ８が正逆回転を
行う。モータ８の正逆回転から、図１に示す回転伝達方
式で撹拌翼６を正逆回転させ衣類を動かす。In order to operate the motor 8, the signals are alternately sent to the gates of the triacs 37a and 37b in response to a command from the central processing circuit 34, so that the motor 8 rotates forward and backward. From the forward / reverse rotation of the motor 8, the clothes are moved by rotating the stirring blade 6 forward / reverse by the rotation transmission method shown in FIG.

【００３１】この時、モータ８のＯＦＦ時に発生する逆
起電力の駆動用コンデンサ８ａの端子間電圧をホト・ト
ライアックカプラ３８より直流矩形波パルスに変換し、
インバータ３９で直流矩形波を反転させ、その信号を中
央処理回路３４に送る。At this time, the terminal voltage of the driving capacitor 8a of the counter electromotive force generated when the motor 8 is turned off is converted by the photo-triac coupler 38 into a DC rectangular wave pulse,
The inverter 39 inverts the DC rectangular wave and sends the signal to the central processing circuit 34.

【００３２】これらの制御により、衣類の大小から撹拌
翼６に加わる抵抗が変化し、この変化の度合いを検知し
布量判定を行うものである。布量判定後、布質検知制御
を行う。By these controls, the resistance applied to the stirring blade 6 changes depending on the size of the clothes, and the degree of this change is detected to determine the cloth amount. After the cloth amount is determined, the cloth quality detection control is performed.

【００３３】布質検知制御とは、布量検知制御を行った
後、コントローラ部からの信号で給水電磁弁２４に通電
され、洗濯兼脱水槽５内に給水される。In the cloth quality detection control, after the cloth amount detection control is performed, the water supply solenoid valve 24 is energized by a signal from the controller section to supply water to the washing / dehydrating tub 5.

【００３４】規定水位まで給水したことを水位センサ１
３が検知すると、布量検知制御と同様、モータ８が正逆
回転を行い、発生する逆起電力の駆動用コンデンサ８ａ
の端子間電圧の信号（Ｔ₁ ）を中央処理回路３４に送
る。The water level sensor 1 indicates that the water has been supplied up to the specified water level.
3 detects, the motor 8 rotates in the normal and reverse directions as in the cloth amount detection control, and the driving capacitor 8a for the counter electromotive force generated.
The signal (T ₁ ) of the voltage between the terminals is sent to the central processing circuit 34.

【００３５】次に布量検知制御により判定した水位ま
で、洗濯兼脱水槽５内に給水を行い、布量判定水位まで
給水したことを水位センサ１３が検知すると、布量検知
制御と同様、モータ８が正逆回転を行い、発生する逆起
電力の駆動用コンデンサ８ａの端子間電圧の信号
（Ｔ₂ ）を中央処理回路３４に送る。Next, water is supplied into the washing / dehydrating tub 5 up to the water level determined by the cloth amount detection control, and when the water level sensor 13 detects that the water level has been reached to the cloth amount determination water level, the motor is activated as in the case of the cloth amount detection control. 8 performs forward / reverse rotation, and sends a signal (T ₂ ) of the voltage across the terminals of the driving capacitor 8a of the generated back electromotive force to the central processing circuit 34.

【００３６】これらＴ₁ およびＴ₂ の信号の変化から布
質の判定を行う。The cloth quality is determined from the changes in the signals of T ₁ and T ₂ .

【００３７】布質検知制御終了後、洗い行程を行う。洗
い行程終了後中央処理回路３４からの信号により排水弁
１５に通電し、排水行程を行う。After the cloth quality detection control is completed, the washing process is performed. After the washing process is completed, the drain valve 15 is energized by a signal from the central processing circuit 34 to perform the drain process.

【００３８】排水行程を終了すると、次にモータ８に通
電を行い洗濯兼脱水槽５を回転させ、その遠心力により
洗濯兼脱水槽５内の衣類内に含まれている洗濯液を取り
出す。When the drainage process is completed, the motor 8 is energized to rotate the washing / dehydrating tub 5, and the centrifugal force extracts the washing liquid contained in the clothes in the washing / dehydrating tub 5.

【００３９】この時洗濯兼脱水槽５を連続で回転させる
と、排水口１６から排水される水の量よりも洗濯兼脱水
槽５からでる水の量が多くなり、外槽４に洗濯液が溜
る。At this time, when the washing / dehydrating tub 5 is continuously rotated, the amount of water discharged from the washing / dehydrating tub 5 becomes larger than the amount of water drained from the drainage port 16, and the washing liquid is stored in the outer tub 4. Collect.

【００４０】この外槽４に溜った洗濯液が回転している
洗濯兼脱水槽５にかきまわされることから泡が増大し、
この泡の表面張力により洗濯兼脱水槽５の回転を妨げる
ため、モータ８に流れる電流の増大からモータの異臭，
発煙の発生等の問題が生じる。（いわゆる洗剤発泡障害
である。） 従来はこの問題を低減するため、図５に示すようにモー
タ８の通電を間欠的に行い、洗濯兼脱水槽５をゆっくり
回転させ、外槽４に洗濯液が溜ることを防ぐ間欠脱水を
行い、その後連続脱水を行っている。Since the washing liquid accumulated in the outer tub 4 is swirled by the rotating washing / dehydrating tub 5, bubbles increase,
The surface tension of the foam hinders the rotation of the washing / dehydrating tub 5, so that an increase in the current flowing through the motor 8 causes a strange odor of the motor.
Problems such as smoke generation occur. (This is a so-called detergent foaming disorder.) In order to reduce this problem, conventionally, as shown in FIG. 5, the motor 8 is intermittently energized, the washing / dehydrating tub 5 is slowly rotated, and the washing liquor is added to the outer tub 4. Intermittent dehydration is performed to prevent the accumulation of water, and then continuous dehydration is performed.

【００４１】しかし、間欠脱水途中にて洗濯兼脱水槽５
と外槽４の間に泡が発生した場合、泡が残ったまま連続
脱水を行うため、前記洗剤発泡障害が発生しやすくな
る。However, during the intermittent dehydration, the washing and dehydrating tank 5
When bubbles are generated between the outer tub 4 and the outer tub 4, continuous dewatering is performed with the bubbles remaining, so that the detergent foaming problem is likely to occur.

【００４２】そこで、これらの状態での洗剤発泡障害を
低減するため、図６により説明すると、間欠脱水終了後
モータ８の通電を所定時間（ここでは一定時間）停止
(５１)し、洗濯兼脱水槽５の回転を上げないよう制御す
る。Therefore, in order to reduce the detergent foaming trouble in these states, referring to FIG. 6, the energization of the motor 8 is stopped for a predetermined time (here, a fixed time) after the completion of the intermittent dehydration.
(51) Then, the rotation of the washing / dehydrating tub 5 is controlled not to be increased.

【００４３】この制御により間欠脱水時に発生した泡が
連続脱水開始までに排水口１６から出され、洗剤発泡障
害の発生を低減できる。By this control, the foam generated during the intermittent dehydration is discharged from the drainage port 16 by the start of the continuous dehydration, and the occurrence of the detergent foaming trouble can be reduced.

【００４４】また、この制御を洗剤発泡障害が発生しや
すい含水量が多い衣類のみとすることから、少量負荷で
の洗濯時では、従来と同等の洗濯時間にて洗濯ができ
る。Further, since this control is applied only to clothes having a large water content, which is likely to cause detergent foaming trouble, when washing with a small load, washing can be performed in the same washing time as the conventional one.

【００４５】[0045]

【発明の効果】以上のように本発明によれば、特に含水
量が多い衣類の場合は連続脱水を行う前に休止を行い、
間欠脱水中に発生した泡を無くすことができるため、洗
剤発泡障害の低減を図り、モータの異臭，発煙等の発生
の問題を低減することができる。As described above, according to the present invention, especially in the case of clothes having a large water content, a pause is performed before continuous dehydration,
Since it is possible to eliminate bubbles generated during intermittent dehydration, it is possible to reduce problems of detergent foaming and reduce problems such as generation of abnormal odor and smoke of the motor.

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

【図１】本発明の一実施例を示す全自動洗濯機の断面
図。FIG. 1 is a sectional view of a fully automatic washing machine showing one embodiment of the present invention.

【図２】本発明の一実施例を示す操作パネルの詳細図。FIG. 2 is a detailed view of an operation panel showing one embodiment of the present invention.

【図３】洗濯機全体の概略回路図。FIG. 3 is a schematic circuit diagram of the entire washing machine.

【図４】布量・布質検知の一実施例の回路図。FIG. 4 is a circuit diagram of an embodiment of cloth amount / cloth quality detection.

【図５】従来の脱水行程を示す時間と回転数を表す図。FIG. 5 is a view showing a time and a rotation speed showing a conventional dehydration process.

【図６】本発明の一実施例を示す時間と回転数を表す
図。FIG. 6 is a diagram showing a time and a rotation speed showing an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

５…洗濯兼脱水槽、６…撹拌翼、８…モータ、１１…ソ
レノイド、１３…水位センサ、２１…操作パネル、２４
…給水電磁弁、３７…布量・布質センサ、５０…安全ス
イッチ。5 ... Washing / dehydrating tank, 6 ... Stirring blade, 8 ... Motor, 11 ... Solenoid, 13 ... Water level sensor, 21 ... Operation panel, 24
… Water supply solenoid valve, 37… Cloth amount / cloth quality sensor, 50… Safety switch.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】洗濯兼脱水槽及び撹拌翼を駆動するモータ
と、洗い，すすぎ，脱水行程を自動で行う制御装置と、
前記制御装置を操作する操作部と、前記制御装置にて設
定水位まで自動で給水する給水装置と、前記制御装置に
て自動で排水を行う排水装置を備えた洗濯機において、 洗い行程後の間欠脱水終了後に前記モータを所定時間休
止し、その後連続脱水を行うことを特徴とする洗濯機の
脱水制御方法。1. A motor for driving a washing / dehydrating tub and a stirring blade, and a controller for automatically performing washing, rinsing, and dehydrating processes.
In a washing machine equipped with an operating section for operating the control device, a water supply device for automatically supplying water to a set water level by the control device, and a drainage device for automatically draining water by the control device, an intermittent operation after a washing process is performed. A method of controlling dehydration of a washing machine, comprising: stopping the motor for a predetermined time after completion of dehydration and then performing continuous dehydration. 【請求項２】請求項１において、布の含水量が少ない場
合には間欠脱水終了後に連続脱水を行うことを特徴とす
る洗濯機の脱水制御方法。2. A method of controlling dehydration of a washing machine according to claim 1, wherein when the water content of the cloth is low, continuous dehydration is carried out after completion of the intermittent dehydration.