JP4260690B2 - Electric washing machine - Google Patents

Electric washing machine Download PDF

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JP4260690B2
JP4260690B2 JP2004175085A JP2004175085A JP4260690B2 JP 4260690 B2 JP4260690 B2 JP 4260690B2 JP 2004175085 A JP2004175085 A JP 2004175085A JP 2004175085 A JP2004175085 A JP 2004175085A JP 4260690 B2 JP4260690 B2 JP 4260690B2
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washing
water
laundry
tub
pulsating blade
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誠 元吉
友弘 大川
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Hitachi Appliances Inc
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Description

本発明は、電気洗濯機に関する。   The present invention relates to an electric washing machine.

一般的な撹拌式の電気洗濯機は、外枠と、この外枠内に防振機構を介して吊り下げるように設けた洗濯水を溜める外槽と、この外槽内に回転可能に設けた縦型の洗濯兼脱水槽である内槽と、前記内槽内の底部に位置させて回転可能に設けた回転翼と、前記内槽および／または回転翼を選択的に回転駆動する駆動機構と、仕上げ剤投入機能付の洗剤投入器と、前記外槽または内槽内に洗濯水を給水し、洗剤投入器に洗剤流し込み水を給水する給水機構と、前記外槽内の洗濯水を排水する排水機構と、前記外槽内の洗濯水の水位を検出する洗濯水位検出手段と、前記外槽の底部に溜った洗濯水を内槽の上方から該内槽内に降り掛けるように循環させる洗濯水循環機構と、前記駆動機構と給水機構と排水機構と洗濯水循環機構を制御する制御装置を備える。   A general agitating type electric washing machine is provided with an outer frame, an outer tub for storing washing water provided to be suspended in the outer frame via a vibration isolating mechanism, and a rotatable in the outer tub. An inner tub that is a vertical washing and dewatering tub; a rotary blade that is positioned rotatably at the bottom of the inner tub; and a drive mechanism that selectively rotates the inner tub and / or the rotary wing. , A detergent dispenser with a finishing agent charging function, a water supply mechanism for supplying washing water into the outer tub or the inner tub, and a detergent pouring water into the detergent charging device, and draining the washing water in the outer tub. Washing water level detecting means for detecting the level of washing water in the outer tub, and washing that circulates the washing water accumulated at the bottom of the outer tub so as to descend from the upper side of the inner tub into the inner tub A controller for controlling the water circulation mechanism, the drive mechanism, the water supply mechanism, the drainage mechanism, and the washing water circulation mechanism; Obtain.

そして、乾燥機能付きの電気洗濯機（洗濯乾燥機）は、前述したような電気洗濯機に対して、外槽の底部から該外槽内の湿潤した空気を吸い出して冷却除湿し、除湿した後に加熱して洗濯兼脱水槽に吹き込む乾燥空気循環系を付設した構成である。   The electric washing machine with a drying function (washing / drying machine), after sucking out the moist air in the outer tub from the bottom of the outer tub, cooling and dehumidifying the electric washing machine as described above, It is the structure which attached the dry air circulation system which heats and blows into a washing and dehydration tank.

このような撹拌式の電気洗濯機における好ましい洗濯水の量は、一般的には、洗濯物の布量に応じて自動的に設定される。一般的な撹拌式の電気洗濯機において標準的な布量（６ｋｇ）の洗濯物を洗濯するときの洗濯水量は、６０リットル程度であって洗濯物が洗濯水中を浮遊する形態となり、撹拌翼によって洗濯物および洗濯水を撹拌して洗濯する構成である。   In general, a preferable amount of washing water in such a stirring type electric washing machine is automatically set according to the amount of laundry. When washing laundry of a standard cloth amount (6 kg) in a general electric washing machine of stirring type, the amount of washing water is about 60 liters, and the laundry is in a form of floating in the washing water. The laundry and washing water are agitated and washed.

一方、電気洗濯機（洗濯乾燥機）における洗いは、洗剤の化学的な洗浄力を有効に活用することによって洗濯物に対して作用させる機械力を軽減することができる。洗剤液を洗濯物に浸沈させて洗剤の化学的な洗浄力を有効に活用するときに好ましい洗剤濃度は、洗い水の好ましい洗剤濃度を１とするときに、略５〜３０倍である。このような高濃度の洗剤液を生成して洗濯物に降り掛けるために、粉末洗剤を溶解して降り掛ける高濃度洗剤液生成供給装置が付加されている。   On the other hand, the washing in the electric washing machine (washing / drying machine) can reduce the mechanical force applied to the laundry by effectively utilizing the chemical washing power of the detergent. The preferred detergent concentration when the detergent solution is immersed in the laundry to effectively utilize the chemical cleaning power of the detergent is about 5 to 30 times when the preferred detergent concentration of washing water is 1. In order to generate such a high-concentration detergent liquid and hang it on the laundry, a high-concentration detergent liquid production and supply device that dissolves and hangs the powder detergent is added.

この高濃度洗剤液生成供給装置は、粉末洗剤を粉末洗剤溶解水に溶解して略１００〜２００倍の超高濃度洗剤液を生成し、この超高濃度洗剤液を希釈水して適度の高濃度洗剤液に希釈しながら洗濯物に降り掛けるように構成される。   This high-concentration detergent liquid production supply device dissolves powder detergent in powder detergent-dissolved water to produce an ultra-high-concentration detergent liquid approximately 100 to 200 times, and dilutes the ultra-high-concentration detergent liquid to a moderately high concentration. It is configured to fall on the laundry while being diluted with a concentrated detergent solution.

因に、その後の洗いでは、洗い水を給水することから、洗い水の洗剤濃度は、標準濃度（粉末洗剤量２０グラム／洗い水量３０リットルの割合）となる。   By the way, in the subsequent washing, since the washing water is supplied, the detergent concentration of the washing water becomes a standard concentration (a ratio of 20 grams of powder detergent / 30 liters of washing water).

特開２００２−２８２５７７号公報 高濃度洗剤液降り掛け浸漬JP 2002-282777 A High concentration detergent liquid soaking 特開２００２−３６０９６６号公報 洗濯乾燥機の乾燥制御JP, 2002-360966, A Drying control of a washing dryer 特開２００２−３６０９８１号公報 洗乾機の洗剤溶かし装置JP, 2002-360981, A Detergent dissolving device of a washing machine 特開２００２−３６０９９０号公報 洗濯乾燥機の風路構造JP, 2002-360990, A Air passage structure of a washing dryer

このように撹拌式の電気洗濯機は、洗濯水の消費量が多く、また、洗剤の化学的な洗浄力を有効に活用しようとすると、格別な高濃度洗剤液生成供給装置を付加することが必要になる。このようなことから、少ない洗濯水で高い洗浄力を得ることができる比較的に簡単な構成の電気洗濯機の実現が望まれている。   In this way, the agitating type electric washing machine consumes a large amount of washing water, and a special high-concentration detergent liquid production and supply device can be added to effectively use the chemical cleaning power of the detergent. I need it. For this reason, it is desired to realize an electric washing machine having a relatively simple configuration that can obtain a high detergency with a small amount of washing water.

そして、少ない洗濯水で高い洗浄力を得る洗濯方法は、押し洗い方法であり、ドラム式洗濯機による洗濯方法が該当する。しかしながら、洗濯槽（ドラム＝内槽）を横軸に設置して回転させるドラム式洗濯機は、防振機構や防水機構が複雑になる問題がある。   And the washing method which obtains high detergency with little washing water is a push-washing method, and the washing method by a drum type washing machine corresponds. However, a drum-type washing machine in which a washing tub (drum = inner tub) is installed on the horizontal axis and rotated has a problem that a vibration-proof mechanism and a waterproof mechanism are complicated.

このような問題を解決して押し洗い方法を実行することができる電気洗濯機として、撹拌式の電気洗濯機における回転翼に代えて、回転することによって洗濯物に上方向の分力を繰り返し作用させるなだらかな傾斜面を提供する複数の***部を備えた脈動翼盤を設置し、外槽内に溜める洗濯水を前記脈動翼盤よりも低い水位に保ち、外槽の底部に溜った洗濯水を内槽の上方から該内槽内に降り掛けるように循環させながら脈動翼盤を正逆回転させることによって該脈動翼盤上の洗濯物に上方向の分力を繰り返し作用させて洗濯する構成の改良型の電気洗濯機を提案することができる。   As an electric washing machine capable of solving such problems and executing the push-washing method, instead of rotating blades in an agitating type electric washing machine, an upward component force is repeatedly applied to the laundry by rotating. Install a pulsating blade with a plurality of raised portions to provide a gentle inclined surface, and keep the washing water stored in the outer tub at a lower water level than the pulsating wing blade and collect at the bottom of the outer tub In which the pulsating blade is rotated forward and backward while being circulated so as to descend into the inner tub from above the inner tub, so that the laundry on the pulsating wing plate is repeatedly subjected to an upward component force for washing. An improved electric washing machine can be proposed.

しかしながら、このような改良型の電気洗濯機は、降り掛けられた洗濯水を多量に含んで湿潤した洗濯物を脈動翼盤上に直に乗せた状態で該脈動翼盤を回転させることから、洗濯物は脈動翼盤と共に回転して遠心力が発生して内槽の内周壁面に押し付けられるように移動して該内槽の内周壁面の近くに偏ってしまう。洗濯物が内槽の内周壁面の近くに偏った状態では、回転する脈動翼盤の***部から洗濯物に作用する上向きの分力が減少することから洗浄効率が低下してしまう。また、洗濯物の内側部分に強く作用する脈動翼盤の回転力は、洗濯物を丸める作用となって洗濯物の布絡みが強くなってしまう。   However, such an improved electric washing machine rotates the pulsating blade plate in a state where the wet laundry containing a large amount of the laundered washing water is placed directly on the pulsating blade plate, The laundry rotates with the pulsating blade, generates centrifugal force, moves so as to be pressed against the inner peripheral wall surface of the inner tub, and is biased near the inner peripheral wall surface of the inner tub. In the state where the laundry is biased near the inner peripheral wall surface of the inner tub, the upward component force acting on the laundry from the raised portion of the rotating pulsating blade is reduced, so that the cleaning efficiency is lowered. In addition, the rotational force of the pulsating blade that strongly acts on the inner part of the laundry acts to round the laundry, resulting in a strong fabric entanglement.

また、脈動翼盤は多量の洗濯水を含んで湿潤した洗濯物に直に触れていることから、回転負荷トルクが大きくなる。脈動翼盤は、洗濯水を通過させるために多数の貫通穴を備えており、この貫通穴の縁と洗濯物の摩擦による摩擦抵抗が脈動翼盤の回転負荷トルクを増大させる。特に、脈動翼盤と洗濯物の摩擦抵抗は、脈動翼盤に設けた***部の頂上付近の領域において強く発生する。因に、この改良型の電機洗濯機では、洗濯工程における回転負荷トルクは、従来の攪拌式の電機洗濯機における回転負荷トルクの約２倍程度になる。   Further, since the pulsating blade plate directly touches the wet laundry containing a large amount of washing water, the rotational load torque is increased. The pulsating blade plate includes a plurality of through holes for allowing washing water to pass therethrough, and the frictional resistance caused by friction between the edge of the through hole and the laundry increases the rotational load torque of the pulsating blade plate. In particular, the frictional resistance between the pulsating blade and the laundry is strongly generated in a region near the top of the raised portion provided on the pulsating blade. Incidentally, in this improved electric washing machine, the rotational load torque in the washing process is about twice the rotational load torque in the conventional agitating type electric washing machine.

そして、脈動翼盤の回転負荷トルクが大きいと、この脈動翼盤を回転駆動する駆動電動機の出力トルクを大きくしなければならず、入力する交流電源（一般的には定格電圧が１００Ｖの商用電源）の電圧変動を補正しながら駆動電動機に安定な電源供給（駆動運転）を実現する電動機駆動給電系が必要となって制御系が大型化や複雑化する問題がある。すなわち、具体的には、駆動電動機としてインバータ駆動のブラシレス電動機を使用する駆動機構では、ブラシレス電動機は、使用（入力）する交流電源の定格電圧を整流回路で整流した後に昇圧回路で昇圧した直流電圧をインバータ回路で交流電圧に変換して給電することによって所定の回転出力特性が得られるように構成する。しかしながら、入力する交流電源（商用電源）電圧は、時間帯によって変動することから、前記昇圧回路は、整流回路から入力する整流電圧の変動の影響を補償して一定（所定）の直流電圧を出力するように調整する調節機能が必要となる。   If the rotational load torque of the pulsating blade is large, the output torque of the drive motor that rotationally drives the pulsating blade must be increased, and the input AC power (generally a commercial power supply with a rated voltage of 100 V) ), The motor drive power supply system that realizes stable power supply (drive operation) to the drive motor while correcting the voltage fluctuation is required, and there is a problem that the control system becomes larger and complicated. Specifically, in a drive mechanism that uses an inverter-driven brushless motor as the drive motor, the brushless motor uses the DC voltage that is boosted by the booster circuit after rectifying the rated voltage of the AC power source to be used (input) by the rectifier circuit. Is converted into an AC voltage by an inverter circuit and supplied with power to obtain a predetermined rotational output characteristic. However, since the input AC power supply (commercial power supply) voltage fluctuates depending on the time zone, the booster circuit compensates for the effect of fluctuation of the rectified voltage input from the rectifier circuit and outputs a constant (predetermined) DC voltage. An adjustment function is necessary to adjust so as to.

本発明の１つの目的は、洗濯物に上向きの力を繰り返し作用させる脈動翼盤の回転負荷トルクを担う駆動電動機を小型で簡単な電動機駆動給電系によって運転制御可能にする電気洗濯機を実現することにある。   One object of the present invention is to realize an electric washing machine that makes it possible to control the operation of a drive motor that bears the rotational load torque of a pulsating blade that repeatedly applies an upward force to the laundry by a small and simple motor drive power supply system. There is.

本発明の他の目的は、脈動翼盤の回転によって該脈動翼盤上の洗濯物が内槽の内周壁面近くに偏って絡んでしまうのを軽減すると共に脈動翼盤に作用する回転負荷トルクを担う駆動電動機を比較的に小型で簡単な電動機駆動給電系によって運転制御可能にする電気洗濯機を実現することにある。   Another object of the present invention is to reduce the rotational load torque acting on the pulsating blade plate while reducing the fact that the laundry on the pulsating blade plate is entangled near the inner wall surface of the inner tub due to the rotation of the pulsating blade plate. It is an object to realize an electric washing machine that can control the operation of a drive motor that bears a relatively small and simple motor drive power supply system.

本発明は、洗濯水を溜める外槽内に回転可能に設けた洗濯兼脱水槽である内槽と、前記内槽内の底部に位置させて回転可能に設けた回転翼盤と、前記内槽および／または回転翼盤を選択的に回転駆動する駆動機構と、前記外槽内に洗濯水を給水する給水機構と、前記外槽内の洗濯水を排水する排水機構と、前記外槽内の洗濯水の水位を検出する水位検出手段と、前記外槽内の洗濯水を該内槽の上方から該内槽内に降り掛けるように循環させる洗濯水循環機構と、前記駆動機構と給水機構と排水機構と洗濯水循環機構を制御する制御装置を備えた電気洗濯機において、
前記回転翼盤は、回転することによって回転翼盤上の洗濯物に上方向の分力を繰り返し作用させるなだらかな傾斜面を提供する複数の***部を備えた脈動翼盤として構成し、
前記駆動機構は、電源電圧変動の保障下限値における倍電圧整流電圧において必要な回転出力特性が得られるように構成したインバータ駆動のブラシレス電動機を備え、
前記制御装置は、受電した交流電源電圧を倍電圧整流する整流回路と該整流回路から出力する直流電圧を前記ブラシレス電動機に供給する交流電圧に変換すると共に電圧波形をＰＷＭ制御する機能をもったインバータ回路とブラシレス電動機を所定の回転速度で回転させるように前記インバータ回路を制御する回転速度制御回路を備え、洗い水が前記脈動翼盤を越えない水位を維持して前記外槽の底部に溜まるように給水機構を制御し、
前記外槽の底部に溜った洗い水を前記脈動翼盤上の洗濯物に降り掛けるように洗濯水循環機構を運転しながら前記脈動翼盤を所定の回転速度で正逆回転させるように前記ブラシレス電動機を運転制御することによって該脈動翼盤から前記洗濯物に上向きの力を繰り返し作用させて洗いを実行することを特徴とする。 The present invention includes an inner tub that is a washing and dewatering tub provided rotatably in an outer tub that stores washing water, a rotary vane that is provided rotatably at the bottom of the inner tub, and the inner tub. And / or a drive mechanism for selectively rotating the rotary vane, a water supply mechanism for supplying washing water into the outer tub, a drainage mechanism for draining the washing water in the outer tub, Water level detecting means for detecting the level of the washing water, a washing water circulation mechanism for circulating the washing water in the outer tub so as to descend from the upper side of the inner tub into the inner tub, the drive mechanism, the water supply mechanism, and the drainage In an electric washing machine equipped with a control device for controlling the mechanism and the washing water circulation mechanism,
The rotary blade is configured as a pulsating blade with a plurality of ridges that provide a gentle inclined surface that repeatedly applies an upward component force to the laundry on the rotary blade by rotating,
The drive mechanism includes an inverter-driven brushless motor configured to obtain a required rotational output characteristic at a voltage doubled rectified voltage at a guaranteed lower limit of power supply voltage fluctuation,
The control device is an inverter having a function of performing PWM control on a voltage waveform while converting a DC voltage output from the rectifier circuit into a AC voltage supplied to the brushless motor and a rectifying circuit that doubles the received AC power supply voltage A rotation speed control circuit for controlling the inverter circuit so as to rotate the circuit and the brushless motor at a predetermined rotation speed so that the washing water is maintained at a level not exceeding the pulsation blade and accumulates at the bottom of the outer tank. To control the water supply mechanism,
The brushless electric motor so as to rotate the pulsating blade board forward and backward at a predetermined rotational speed while operating the washing water circulation mechanism so that the washing water collected at the bottom of the outer tub falls on the laundry on the pulsating blade board It is characterized in that the washing is executed by repeatedly applying an upward force to the laundry from the pulsating blade board by controlling the operation of the pulsating blade.

そして、前記制御装置における回転速度制御回路は、ＰＷＭ制御およびベクトル制御によって前記ブラシレス電動機を回転速度制御するように前記インバータ回路を制御することを特徴とする。   The rotation speed control circuit in the control device controls the inverter circuit so as to control the rotation speed of the brushless motor by PWM control and vector control.

また、前記脈動翼盤は、前記***部の頂上部分を除く領域に分散させて設けた多数の貫通穴を備えたことを特徴とする。   Further, the pulsating blade has a plurality of through holes provided in a distributed manner in a region excluding the top portion of the raised portion.

また、前記内槽は、前記脈動翼盤と対向する高さに位置して内周壁面から内側に突出する膨出部の上面によって形成されて該内周壁面に沿って周方向に順次に高くなるように傾斜して伸びる複数の傾斜面と、周方向における前記傾斜面の頂上部分から前記内周壁面の内側に膨出する形態で該内周壁面に沿って縦方向に伸びる突条を備えたことを特徴とする。   Further, the inner tank is formed by an upper surface of a bulging portion that is located at a height facing the pulsating blade and protrudes inward from the inner peripheral wall surface, and sequentially increases in the circumferential direction along the inner peripheral wall surface. A plurality of inclined surfaces extending in an inclined manner, and a ridge extending in the longitudinal direction along the inner peripheral wall surface in a form bulging from the top portion of the inclined surface in the peripheral direction to the inside of the inner peripheral wall surface. It is characterized by that.

また、前記外槽内の空気を吸い出して水冷除湿した後に加熱して内槽に吹き込んで循環させる空気循環系を備え、脈動翼盤を回転させながら空気を循環させることによって洗濯物を乾燥させる乾燥工程を実行するように構成したことを特徴とする。   In addition, it is equipped with an air circulation system that sucks out the air in the outer tub and dehumidifies it with water, then heats it and blows it into the inner tub and circulates it, and dries the laundry by circulating air while rotating the pulsating blade. The present invention is characterized in that the process is executed.

本発明は、洗濯兼脱水槽である内槽内の底部に位置させて回転させる回転翼盤を回転することによって該回転翼盤上の洗濯物に上方向の分力を繰り返し作用させるなだらかな傾斜面を提供する複数の***部を備えた脈動翼盤として構成し、底部に溜った洗い水を前記脈動翼盤上の洗濯物に降り掛けるように循環させながら前記脈動翼盤を所定の回転速度で正逆回転させるようにインバータ駆動のブラシレス電動機で回転駆動して該脈動翼盤から前記洗濯物に上向きの力を繰り返し作用させて洗いを実行するように構成したことによって、前記ブラシレス電動機は、電源電圧変動の保障下限値における倍電圧整流電圧において必要な回転出力特性が得られるように構成することができ、このブラシ例電動機に給電する制御装置は、受電した交流電源電圧を倍電圧整流した直流電圧をインバータ回路によって交流電圧に変換すると共にＰＷＭ制御やベクトル制御によって前記ブラシレス電動機を所定の回転速度で回転させるように回転速度制御することができ、従って、比較的に小型で簡単な電動機駆動給電系による駆動電動機の運転を可能にする電機洗濯機を実現することができる。   The present invention is a gentle slope that repeatedly applies an upward component force to the laundry on the rotating blade by rotating a rotating blade that is positioned at the bottom of the inner tub that is a washing and dewatering tub. The pulsating blade is configured as a pulsating blade including a plurality of raised portions that provide a surface, and the pulsating blade is rotated at a predetermined rotational speed while circulating the washing water accumulated at the bottom so as to fall on the laundry on the pulsating blade. The brushless motor is configured to perform washing by rotating and rotating the inverter with a brushless motor driven by an inverter so as to perform forward and reverse rotation, and repeatedly applying an upward force from the pulsating blade to the laundry. The control device that supplies power to this brush example motor can be configured so as to obtain the required rotational output characteristics at the double voltage rectified voltage at the guaranteed lower limit of the power supply voltage fluctuation. A DC voltage obtained by doubling the source voltage is converted into an AC voltage by an inverter circuit, and the rotational speed can be controlled to rotate the brushless motor at a predetermined rotational speed by PWM control or vector control. In addition, it is possible to realize an electric washing machine that enables operation of a drive motor by a small and simple motor drive feed system.

また、内槽には、前記脈動翼盤と対向する高さに位置して内周壁面から内側に突出する膨出部の上面によって形成されて該内周壁面に沿って周方向に順次に高くなるように傾斜して伸びる複数の傾斜面と、周方向における前記傾斜面の頂上部分から前記内周壁面の内側に膨出する形態で該内周壁面に沿って縦方向に伸びる突条を設けたことによって、脈動翼盤の回転によって該脈動翼盤上の洗濯物が内槽の内周壁面近くに偏って絡んでしまうのを軽減することができる。   The inner tank is formed by an upper surface of a bulging portion located at a height facing the pulsating blade and projecting inward from the inner peripheral wall surface, and sequentially increases in the circumferential direction along the inner peripheral wall surface. A plurality of inclined surfaces extending in an inclined manner, and a ridge extending in the longitudinal direction along the inner peripheral wall surface in a form bulging from the top portion of the inclined surface in the circumferential direction to the inner peripheral wall surface As a result, it is possible to reduce the fact that the laundry on the pulsating blades is entangled near the inner peripheral wall surface of the inner tub due to the rotation of the pulsating blades.

本発明の電気洗濯機は、洗濯水を溜める外槽内に回転可能に設けた洗濯兼脱水槽である内槽と、前記内槽内の底部に位置させて回転可能に設けた回転翼盤と、前記内槽および／または回転翼盤を選択的に回転駆動する駆動機構と、前記外槽内に洗濯水を給水する給水機構と、前記外槽内の洗濯水を排水する排水機構と、前記外槽内の洗濯水の水位を検出する水位検出手段と、前記外槽内の洗濯水を該内槽の上方から該内槽内に降り掛けるように循環させる洗濯水循環機構と、前記駆動機構と給水機構と排水機構と洗濯水循環機構を制御する制御装置を備えた基本構成において、
前記回転翼盤は、回転することによって回転翼盤上の洗濯物に上方向の分力を繰り返し作用させるなだらかな傾斜面を提供する複数の***部と、この***部の頂上部分を除く領域に分散させて設けた多数の貫通穴を備えた脈動翼盤として構成し、
前記駆動機構は、電源電圧変動の保障下限値における倍電圧整流電圧において必要な回転出力特性が得られるように構成したインバータ駆動のブラシレス電動機を備え、
前記制御装置は、受電した交流電源電圧を倍電圧整流する整流回路と該整流回路から出力する直流電圧を前記ブラシレス電動機に供給する交流電圧に変換すると共に電圧波形をＰＷＭ制御する機能をもったインバータ回路とブラシレス電動機を所定の回転速度で回転させるように前記インバータ回路を制御する回転速度制御回路を備え、洗い水が前記脈動翼盤を越えない水位を維持して前記外槽の底部に溜まるように給水機構を制御し、
前記外槽の底部に溜った洗い水を前記脈動翼盤上の洗濯物に降り掛けるように洗濯水循環機構を運転しながら前記脈動翼盤を所定の回転速度で正逆回転させるように前記ブラシレス電動機への給電をＰＷＭ制御およびベクトル制御することによって該脈動翼盤から前記洗濯物に上向きの力を繰り返し作用させて洗いを実行する構成とする。 The electric washing machine of the present invention includes an inner tub that is a washing and dewatering tub provided rotatably in an outer tub that stores washing water, and a rotary vane that is provided rotatably at the bottom of the inner tub. A drive mechanism for selectively rotating the inner tub and / or the rotor blade, a water supply mechanism for supplying washing water into the outer tub, a drainage mechanism for draining the washing water in the outer tub, A water level detecting means for detecting the level of the washing water in the outer tub, a washing water circulation mechanism for circulating the washing water in the outer tub so as to descend from the upper side of the inner tub into the inner tub, and the drive mechanism; In the basic configuration with a control device that controls the water supply mechanism, drainage mechanism and washing water circulation mechanism,
The rotating blades are provided in a region excluding a plurality of raised portions that provide a gentle inclined surface that repeatedly applies an upward component force to the laundry on the rotating blades by rotating, and a top portion of the raised portions. Configured as a pulsating blade with many through-holes distributed,
The drive mechanism includes an inverter-driven brushless motor configured to obtain a required rotational output characteristic at a voltage doubled rectified voltage at a guaranteed lower limit of power supply voltage fluctuation,
The control device is an inverter having a function of performing PWM control on a voltage waveform while converting a DC voltage output from the rectifier circuit into a AC voltage supplied to the brushless motor and a rectifying circuit that doubles the received AC power supply voltage A rotation speed control circuit for controlling the inverter circuit so as to rotate the circuit and the brushless motor at a predetermined rotation speed so that the washing water is maintained at a level not exceeding the pulsation blade and accumulates at the bottom of the outer tank. To control the water supply mechanism,
The brushless electric motor so as to rotate the pulsating blade board forward and backward at a predetermined rotational speed while operating the washing water circulation mechanism so that the washing water collected at the bottom of the outer tub falls on the laundry on the pulsating blade board By performing PWM control and vector control of power supply to the laundry, an upward force is repeatedly applied from the pulsating blade to the laundry to perform washing.

また、前記内槽は、前記脈動翼盤と対向する高さに位置して内周壁面から内側に突出する膨出部の上面によって形成されて該内周壁面に沿って周方向に順次に高くなるように傾斜して伸びる複数の傾斜面と、周方向における前記傾斜面の頂上部分から前記内周壁面の内側に膨出する形態で該内周壁面に沿って縦方向に伸びる突条を備え、
また、前記外槽内の空気を吸い出して水冷除湿した後に加熱して内槽に吹き込んで循環させる空気循環系を備え、脈動翼盤を回転させながら空気を循環させることによって洗濯物を乾燥させる乾燥工程を実行するように構成する。 Further, the inner tank is formed by an upper surface of a bulging portion that is located at a height facing the pulsating blade and protrudes inward from the inner peripheral wall surface, and sequentially increases in the circumferential direction along the inner peripheral wall surface. A plurality of inclined surfaces extending in an inclined manner, and a ridge extending in the longitudinal direction along the inner peripheral wall surface in a form bulging from the top portion of the inclined surface in the peripheral direction to the inside of the inner peripheral wall surface. ,
In addition, it is equipped with an air circulation system that sucks out the air in the outer tub and dehumidifies it with water, then heats it and blows it into the inner tub and circulates it, and dries the laundry by circulating air while rotating the pulsating blade. The process is configured to be executed.

この実施例における電気洗濯機は、洗濯および乾燥を実行する形態であって、基本的には、次のようにして洗濯および乾燥を実行する構成である。   The electric washing machine in this embodiment is configured to execute washing and drying, and basically has a configuration for executing washing and drying as follows.

洗濯水を溜める外槽内に内槽である洗濯兼脱水槽を回転可能に設置し、この洗濯兼脱水槽の底部に位置させて脈動翼盤を回転可能に設置する。この脈動翼盤には、回転することによって脈動翼盤上に投入されている洗濯物に上向きの分力を繰り返し作用させるなだらかな傾斜面を提供する複数の***部と、前記***部の頂上部分を除く領域に分散させて設けた多数の貫通穴を設ける。前記洗濯兼脱水槽と脈動翼盤は、駆動機構によって選択的に回転駆動するように構成する。   A washing / dehydrating tub, which is an inner tub, is rotatably installed in an outer tub for storing washing water, and a pulsating blade is rotatably installed at the bottom of the washing / dehydrating tub. The pulsating blade includes a plurality of ridges that provide a gentle inclined surface that repeatedly causes an upward component force to act on the laundry put on the pulsation blade by rotating, and a top portion of the ridge A large number of through-holes are provided in a distributed manner in the region excluding. The washing / dehydrating tub and the pulsating blade are configured to be selectively rotated by a driving mechanism.

前記洗濯兼脱水槽内には、前記脈動翼盤と対向する高さに位置させて内周壁面から内側に突出する膨出部の上面によって形成されて該内周壁面に沿って周方向に順次に高くなるように傾斜して伸びる山形の複数の傾斜面と、周方向における前記傾斜面の頂上部分から前記内周壁面の内側に膨出する形態で該内周壁面に沿って縦方向に伸びる突条を設ける。   The washing and dewatering tub is formed by an upper surface of a bulging portion that protrudes inward from the inner peripheral wall surface at a height facing the pulsating blade, and sequentially in the circumferential direction along the inner peripheral wall surface. And a plurality of angled slopes extending in an inclined manner so as to increase in height, and extending in the longitudinal direction along the inner peripheral wall surface in a form bulging from the top portion of the inclined surface in the circumferential direction to the inside of the inner peripheral wall surface Provide ridges.

更に、洗剤投入器および該洗剤投入器内の粉末洗剤を外槽の底部に導入する洗剤給水機構と、前記外槽内に洗濯水を給水する給水機構と該外槽内の洗濯水を排水する排水機構と、前記外槽の底部の洗濯水を前記洗濯兼脱水槽の上方から該洗濯兼脱水槽内に降り掛けるように循環させる洗濯水循環機構と、前記外槽内の空気を吸い出して水冷除湿した後に加熱して前記洗濯兼脱水槽内に吹き込むように循環させて洗濯物を乾燥させる空気循環除湿機構と、前記駆動機構と給水機構と排水機構と洗濯水循環機構と空気循環除湿機構を制御する制御装置であるコントローラを設ける。   Further, the detergent dispenser, the detergent water supply mechanism for introducing the powder detergent in the detergent dispenser into the bottom of the outer tub, the water supply mechanism for supplying washing water into the outer tub, and the washing water in the outer tub are drained. A drainage mechanism, a washing water circulation mechanism that circulates washing water at the bottom of the outer tub from above the washing and dehydration tub, and a water-cooled dehumidification by sucking out air in the outer tub The air circulation dehumidifying mechanism that heats and then circulates to blow into the washing and dewatering tub and dries the laundry, and controls the drive mechanism, water supply mechanism, drainage mechanism, washing water circulation mechanism, and air circulation dehumidification mechanism. A controller which is a control device is provided.

前記駆動機構は、入力する交流電源電圧の変動の保障下限値（例えば定格電圧の１０％減）における倍電圧整流電圧において必要な回転出力が得られるように構成したインバータ駆動のブラシレス電動機を備え、
前記制御装置は、受電した交流電源電圧を倍電圧整流する整流回路と該整流回路から出力する直流電圧を前記ブラシレス電動機に供給する交流電圧（ブラシレス電動機駆動電圧）に変換するインバータ回路と該インバータ回路を制御するインバータ駆動回路とブラシレス電動機を所定の回転速度で運転するように前記インバータ駆動回路をＰＷＭ制御およびベクトル制御する回転速度制御回路を備える。 The drive mechanism includes an inverter-driven brushless motor configured to obtain a required rotational output at a voltage doubled rectified voltage at a guaranteed lower limit value (for example, 10% reduction of the rated voltage) of fluctuations in the input AC power supply voltage,
The control device includes a rectifier circuit that doubles the received AC power supply voltage, an inverter circuit that converts a DC voltage output from the rectifier circuit into an AC voltage (brushless motor drive voltage) supplied to the brushless motor, and the inverter circuit And an inverter drive circuit for controlling the motor and a rotational speed control circuit for PWM control and vector control of the inverter drive circuit so that the brushless motor is operated at a predetermined rotational speed.

そして、前記コントローラは、次のように洗濯および乾燥工程を制御する。   The controller controls the washing and drying process as follows.

洗い工程では、その後の洗い工程において前記脈動翼盤の上面を越えない水位または僅かに越える水位を維持して前記外槽の底部に溜まるように給水して粉末洗剤を溶かすことによって該外槽の底部に高洗剤濃度の洗い水を生成し、この洗い水を洗濯物に降り掛けるように循環させながら脈動翼盤を正逆回転させて洗濯物に上向きの力を繰り返し作用させることによって該洗濯物を押し洗いする。ここで、洗濯物の布量が通常の範囲内であるときの洗い水は脈動翼盤の上面を越えない水位とし、洗濯物の布量が通常の範囲を下回るときの洗い水は脈動翼盤の上面を僅かに越える水位とする。   In the washing step, in the subsequent washing step, the water level that does not exceed the top surface of the pulsation blade board or a level that slightly exceeds the upper surface is maintained, and water is supplied so as to accumulate at the bottom of the outer tank, and the powder detergent is dissolved to dissolve the powder detergent. The laundry is produced by generating wash water having a high detergent concentration at the bottom, and rotating the pulsating blades forward and backward while circulating the wash water so as to fall on the laundry and repeatedly applying upward force to the laundry. Press and wash. Here, the washing water when the amount of laundry is within the normal range is the water level that does not exceed the upper surface of the pulsating blade, and the washing water when the amount of laundry is less than the normal range is the pulsating blade. The water level slightly above the upper surface of

濯ぎ工程では、洗い工程と同様に、脈動翼盤の上面を越えない水位または僅かに越える水位を維持して前記外槽の底部に溜まるように給水した濯ぎ水を洗濯物に降り掛けるように循環させながら脈動翼盤を所定の回転速度で正逆回転させて洗濯物に上向きの力を繰り返し作用させることによって該洗濯物に含まれる洗い水（洗剤成分）を押し出す濯ぎを行う。   In the rinsing process, as in the washing process, the water level that does not exceed or slightly exceeds the upper surface of the pulsating blade is maintained, and the rinsing water that is supplied so as to accumulate at the bottom of the outer tub is circulated so as to fall on the laundry. Then, the pulsation blade is rotated forward and backward at a predetermined rotational speed to repeatedly apply an upward force to the laundry, thereby rinsing the washing water (detergent component) contained in the laundry.

そして、乾燥工程では、脈動翼盤を所定の回転速度で正逆回転させながら前記外槽内の空気を吸い出して水冷除湿した後に加熱して前記洗濯兼脱水槽内に吹き込むように循環させて洗濯物を乾燥させる。   In the drying process, the pulsation blades are rotated forward and backward at a predetermined rotational speed to suck out the air in the outer tub, water-cool and dehumidify it, and then heat and circulate so as to blow into the washing and dehydrating tub. Let things dry.

図１は、このような洗濯および乾燥を実行する電気洗濯機を縦断した状態で側面を示す模式図であり、１は、外郭を構成する四角筒状の側枠である。２は、内槽を構成する洗濯兼脱水槽であり、その外周壁に通水および通風のための複数の小さな貫通穴２ａを有し、その底壁に通水および通風のための複数の貫通穴２ｂを有し、その上縁部に流体バランサー３を備え、底部の内側には回転自在に回転翼盤である脈動翼盤４を回転可能に設置する。   FIG. 1 is a schematic view showing a side surface in a state where an electric washing machine that performs such washing and drying is cut vertically, and 1 is a rectangular tubular side frame that constitutes an outer shell. 2 is a washing and dewatering tub constituting an inner tub, and has a plurality of small through holes 2a for water flow and ventilation on the outer peripheral wall thereof, and a plurality of holes for water flow and ventilation on the bottom wall thereof. A hole 2b is provided, a fluid balancer 3 is provided at the upper edge thereof, and a pulsating blade 4 which is a rotating blade is rotatably installed inside the bottom.

前記脈動翼盤４は、図２〜図５に示すように、その上面に、洗濯兼脱水槽２の底部に位置して回転することによって該洗濯兼脱水槽２内に投入されて脈動翼盤４上に乗っている洗濯物に上向きの分力を繰り返し作用させる押し洗い力を発生するように回転方向になだらかに傾斜した複数の傾斜面を形成する***部４ａと、多数の水抜き貫通穴４ｂを備える。***部４ａは、回転方向に山形に傾斜し、且つ外周部位が順次に高くなるように径方向に傾斜し、更に、外周端面４ｃは上部を中心側に倒すように傾斜させた傾斜面とする。この実施例における脈動翼盤４は、約５２０ｍｍの内径寸法の洗濯兼脱水槽２に対して、外径寸法を約４７０ｍｍの大きさに構成した。このような大きさの脈動翼盤４は、***部４ａの最高部の高は６５〜７０ｍｍとすることが望ましく、この***部４ａを形成する回転方向のなだらかな傾斜面の最大傾斜角度θ１は水平面に対して２０〜３０度とすることが望ましく、径方向の傾斜角度θ２は、水平面に対して１０〜２０度とすることが望ましく、前記外周端面４ｃの傾斜角度θ３は、垂直面に対して７〜１５度とすることが望ましい。また、洗濯水を通過させる貫通穴４ｂは、***部４ａにおける頂上部分の領域を除く領域に分散させて設ける。 As shown in FIGS. 2 to 5, the pulsating blade 4 is put into the washing / dehydrating tub 2 by rotating on the upper surface of the pulsating blade 4 at the bottom of the washing / dehydrating tub 2 to be pulsated. 4. Raised portions 4a that form a plurality of inclined surfaces that are gently inclined in the rotational direction so as to generate a washing force that repeatedly exerts an upward force on the laundry that is riding on, and a number of drainage through holes 4b. The raised portion 4a is inclined in a mountain shape in the rotation direction, and is inclined in the radial direction so that the outer peripheral portions are sequentially increased, and the outer peripheral end surface 4c is an inclined surface inclined so that the upper portion is tilted toward the center side. . The pulsating blade 4 in this embodiment has an outer diameter dimension of about 470 mm with respect to the washing / dehydrating tub 2 having an inner diameter dimension of about 520 mm. In the pulsating blade 4 having such a size, the height of the highest portion of the raised portion 4a is preferably 65 to 70 mm, and the maximum inclination angle θ 1 of the gentle inclined surface in the rotation direction forming the raised portion 4a. is is preferably set to be 20 to 30 degrees relative to the horizontal plane, the inclination angle theta 2 in the radial direction, it is desirable that 10 to 20 degrees relative to the horizontal plane, the inclination angle theta 3 of the outer peripheral edge surface 4c is vertical It is desirable that the angle is 7 to 15 degrees with respect to the surface. Further, the through holes 4b through which the washing water is passed are provided in a distributed manner in the region excluding the region of the top portion of the raised portion 4a.

脈動翼盤４が回転すると、この脈動翼盤４上の洗濯物は、脈動翼盤４上を滑りながら該脈動翼盤４の回転方向に回転すると共に***部４ａに押されて上下方向に振動する。この滑りによって洗濯物と脈動翼盤４の間に水膜が形成される。水膜の厚さは、洗濯物から脈動翼盤４に作用する回転負荷トルクに影響し、水膜が薄いほど回転負荷トルクが増加する。水膜の厚さは、貫通穴４ｂの数が多いほど薄くなる。一方、洗濯物を上方向に押し上げる力は、***部４ａの頂上部領域で最大となることから、この部分の水膜の厚さの大小が脈動翼盤４に作用する回転負荷トルクに大きく影響する。すなわち、この実施例のように、***部４ａの頂上部領域に貫通穴４ａがない形態では該頂上部領域に厚い水膜が形成されることから、洗濯物から脈動翼盤４に作用する回転負荷トルクが軽減する。また、脈動翼盤４と洗濯物の直接の摺動が起きにくいことから洗濯物の傷みの発生も軽減する。   When the pulsating blade 4 rotates, the laundry on the pulsating blade 4 rotates in the rotational direction of the pulsating blade 4 while sliding on the pulsating blade 4, and is pushed by the raised portion 4a and vibrates in the vertical direction. To do. This slip forms a water film between the laundry and the pulsating blade 4. The thickness of the water film affects the rotational load torque that acts on the pulsating blade 4 from the laundry. The thinner the water film, the greater the rotational load torque. The thickness of the water film decreases as the number of through holes 4b increases. On the other hand, the force that pushes up the laundry is maximized in the top region of the raised portion 4a, and therefore the thickness of the water film in this portion greatly affects the rotational load torque acting on the pulsating blade 4. To do. That is, as in this embodiment, when there is no through hole 4a in the top region of the raised portion 4a, a thick water film is formed in the top region, so that the rotation that acts on the pulsating blade 4 from the laundry is performed. Load torque is reduced. In addition, since the direct sliding between the pulsating blade 4 and the laundry does not easily occur, the occurrence of damage to the laundry is reduced.

このような形態の脈動翼盤４は、詳しくは後述するが、回転することによって脈動翼盤４上の洗濯物に対して上向きの適度の分力を繰り返し作用させ、また、***部４ａと洗濯兼脱水槽２の内周面の間およびリフター（後述する）との間に洗濯物が噛み込んで脈動翼盤４が回転不能（ロック）になってしまうのを防止するのに好適である。   As will be described in detail later, the pulsating blade 4 having such a configuration causes an appropriate upward force to repeatedly act on the laundry on the pulsating blade 4 by rotating, and the ridge 4a and the washing It is suitable for preventing the pulsating blade 4 from becoming unrotatable (locked) due to the laundry biting between the inner peripheral surface of the cum dewatering tank 2 and between the lifter (described later).

前記洗濯兼脱水槽２は、その内周壁面の底部に該内周壁面の近くに寄ってきた洗濯物に上向きの力を作用させて該洗濯物の偏りと布絡みを防止するためのリフター５を備える。このリフター５は、図６および図７に詳しく示すように、前記脈動翼盤４と対向する高さに位置して内周壁面から内側に円弧状に突出する膨出部５ａの上面によって形成されて該内周壁面に沿って周方向に順次に高くなるように傾斜して伸びる山形の傾斜面５ｂと、周方向における前記傾斜面５ｂの頂上部分から前記内周壁面の内側に膨出する形態で該内周壁面に沿って縦方向（上向き）に伸びる突条５ｃを備える。前記傾斜面５ｂは、前記脈動翼盤４における***部４ａを形成する回転方向になだらかな傾斜面の高さおよび傾斜角度と同様な高さおよび傾きとする。また、前記突条５ｃの膨出高さ（厚み）は、リフター５の膨出部５ａと略同一の高さとし、１０〜１５ｍｍであることが望ましい。この突条５ｃの膨出高さが過大になると、洗濯工程において脈動翼盤４の回転に伴う洗濯物の周方向の動きを抑制する作用が過大になって洗浄に悪影響を及ぼすようになる。このリフター５は、樹脂成型によって一体的に構成して取り付ける。   The washing and dewatering tub 2 is provided with a lifter 5 for preventing upward biasing and tangling of the laundry by applying an upward force to the laundry approaching to the bottom of the inner peripheral wall surface. Is provided. As shown in detail in FIGS. 6 and 7, the lifter 5 is formed by an upper surface of a bulging portion 5 a located at a height facing the pulsating blade 4 and projecting in an arc from the inner peripheral wall surface. A mountain-shaped inclined surface 5b that inclines and extends so as to increase sequentially in the circumferential direction along the inner peripheral wall surface, and a form that bulges from the top of the inclined surface 5b in the circumferential direction to the inside of the inner peripheral wall surface And a protrusion 5c extending in the vertical direction (upward) along the inner peripheral wall surface. The inclined surface 5b has a height and an inclination similar to the height and the inclination angle of the inclined surface that is gentle in the rotational direction in which the raised portion 4a of the pulsating blade 4 is formed. The protruding height (thickness) of the protrusion 5c is substantially the same as the protruding portion 5a of the lifter 5, and is desirably 10 to 15 mm. If the protruding height of the protrusion 5c is excessive, the action of suppressing the movement of the laundry in the circumferential direction accompanying the rotation of the pulsating blade 4 is excessive in the washing process, and the washing is adversely affected. The lifter 5 is integrally formed and attached by resin molding.

また、前記脈動翼盤４の***部４ａの頂上部の外端縁と前記リフター５の傾斜面５ｂの頂上部分が対向したときの両者の対向縁の間には、約２５ｍｍ以上の間隙ｇ１を確保することができる構成であることが望ましい。更に、脈動翼盤４の***部４ａの頂上部の外端縁と洗濯兼脱水槽２の内面の間隙ｇ２は、３０ｍｍ以上を確保することができるように構成することが望ましい。 In addition, a gap g 1 of about 25 mm or more is provided between the outer edge at the top of the raised portion 4a of the pulsating blade 4 and the top edge of the inclined surface 5b of the lifter 5 facing each other. It is desirable for the configuration to be able to ensure. Further, the gap g 2 of the top portion outer edge and washing and dewatering tank 2 of the inner surface of the raised portion 4a of the pulsation wing plate 4 is preferably configured to be able to ensure a higher 30 mm.

これらの値は、洗濯物に対する洗濯や乾燥の効率を高めると共に洗濯物の噛み込み（後述する）を防止するのに好適である。すなわち、脈動翼盤４の***部４ａの頂上部が外側に位置する方が洗濯物の動きを大きくすることができて洗濯や乾燥に有利であるが、脈動翼盤４とリフター５および洗濯兼脱水槽２との隙間が小さくなって洗濯物が噛み込み易くなる。   These values are suitable for improving the efficiency of washing and drying of the laundry and preventing the laundry from being caught (described later). In other words, it is more advantageous for washing and drying that the top of the raised portion 4a of the pulsating blade 4 is positioned outside, which is advantageous for washing and drying. The gap with the dehydration tank 2 becomes small, and the laundry becomes easy to bite.

図８は、洗濯兼脱水槽２内における脈動翼盤４とリフター５の対向関係を洗濯兼脱水槽２を透視して示す斜視図である。この実施例では、脈動翼盤４に１８０度の間隔で２つの***部を設け、洗濯兼脱水槽２の外周壁内面にも１８０度の間隔で２つのリフター５を設置しているが、この図８では、一方のリフターの図示を省略している。   FIG. 8 is a perspective view showing the facing relationship between the pulsating blade 4 and the lifter 5 in the washing / dehydrating tub 2 through the washing / dehydrating tub 2. In this embodiment, the pulsation blade 4 is provided with two raised portions at intervals of 180 degrees, and the two lifters 5 are also installed at intervals of 180 degrees on the inner surface of the outer peripheral wall of the washing and dewatering tub 2. In FIG. 8, the illustration of one lifter is omitted.

このように構成したリフター５は、洗濯工程においては、洗い水または濯ぎ水が降り掛けられて湿潤した洗濯物が脈動翼盤４上に直に乗った状態で該脈動翼盤４と共に回転しながら遠心力によって洗濯兼脱水槽２の内周壁面に押し付けられるように移動すると、リフター５の傾斜面５ｂによって洗濯物に上向きの力が作用し、更に、突条５ｃによって回転が抑制されて脈動翼盤４の中心側方向に移動することから、洗濯物が洗濯兼脱水槽２の内周壁面近くに偏った状態となって脈動翼盤４の***部４ａから該洗濯物に作用する上向きの分力が減少して洗浄効率が低下するような現象が低減し、また、洗濯物の布絡みも軽減する。更には、脈動翼盤４の***部４ａの外周端面４ｃの適度の傾斜角度θ３を設けたこと、前記脈動翼盤４の外周端面４ｃとリフター５の膨出部５ａおよび洗濯兼脱水槽２の内周壁面の間の適度の間隔を確保したこと、また、洗濯物がリフター５の膨出部５ａと脈動翼盤４の***部４ａの外周端面４ｃの間の隙間に入ろうとすると膨出部５ａの傾斜面５ｂが洗濯物を上向きに押し出すように作用することにより、洗濯物が隙間に噛み込んで脈動翼盤４が回転不能になるようなことや、噛み込みによって洗濯物が損傷するようなことも防止できる。また、リフター５の膨出部５ａの内周壁面は円筒状の湾曲面になっており、脈動翼盤４の***部４ａの外周端面４ｃとリフター５の膨出部５ａの間の隙間が円周方向に一定であることから、この隙間に洗濯物が侵入しても、そのまま隙間を通過し、隙間に噛み込むようなことがない。 In the washing process, the lifter 5 configured as described above is rotated with the pulsating blade 4 while the washing wet with the washing water or the rinsing water is directly put on the pulsating blade 4. When it moves so as to be pressed against the inner peripheral wall surface of the washing and dewatering tub 2 by centrifugal force, an upward force is applied to the laundry by the inclined surface 5b of the lifter 5, and further, rotation is suppressed by the protrusion 5c and the pulsating blade Since the laundry moves toward the center side of the board 4, the laundry is biased near the inner peripheral wall surface of the washing and dewatering tub 2, and the upward portion acting on the laundry from the raised portion 4 a of the pulsating blade board 4. The phenomenon that the power is reduced and the washing efficiency is reduced is reduced, and the tangling of the laundry is also reduced. Furthermore, an appropriate inclination angle θ 3 of the outer peripheral end surface 4 c of the raised portion 4 a of the pulsating blade 4 is provided, the outer peripheral end surface 4 c of the pulsating blade 4, the bulging portion 5 a of the lifter 5, and the washing / dehydrating tub 2. A proper space between the inner peripheral wall surfaces of the lifter 5 is secured, and the laundry bulges when entering the gap between the bulged portion 5a of the lifter 5 and the outer peripheral end surface 4c of the raised portion 4a of the pulsating blade 4 The inclined surface 5b of the portion 5a acts to push the laundry upward, so that the laundry is caught in the gap and the pulsating blade 4 cannot be rotated, or the laundry is damaged by the biting. This can also be prevented. Further, the inner peripheral wall surface of the bulging portion 5 a of the lifter 5 is a cylindrical curved surface, and the gap between the outer peripheral end surface 4 c of the raised portion 4 a of the pulsating blade 4 and the bulging portion 5 a of the lifter 5 is circular. Since it is constant in the circumferential direction, even if the laundry enters the gap, it does not pass through the gap and bite into the gap.

また、乾燥工程においては、脈動翼盤４とリフター５は、最終脱水によって洗濯兼脱水槽２の内周壁面に偏った洗濯物を解きほぐし、リフター５の傾斜面５ｂによって洗濯物の上方向の動きを促進すると共に突条５ｃによって洗濯物の回転方向（円周方向）の動きを抑制して洗濯物の入れ替わりを促進し、循環空気と洗濯物の接触を良くして乾燥効率を高めるように作用する。   In the drying process, the pulsating blade 4 and the lifter 5 unravel the laundry that is biased to the inner peripheral wall surface of the washing and dewatering tub 2 by the final dehydration, and the upward movement of the laundry by the inclined surface 5 b of the lifter 5. The protrusion 5c suppresses the movement of the laundry in the rotation direction (circumferential direction), promotes the replacement of the laundry, improves the contact between the circulating air and the laundry, and increases the drying efficiency. To do.

６は、前記洗濯兼脱水槽２を内包する外槽であり、その底部の外側には鋼板製の取り付けベース７を介して洗濯脱水駆動装置８を取り付ける。この外槽６は、図示説明は省略するが、側枠１の上端部の四隅部に設けた隅板に係止して垂下させた４本の支持棒に緩衝装置を介して該外槽６の四方位を係合させて均等に支持することにより該側枠１の中心部に懸垂する。   Reference numeral 6 denotes an outer tub containing the washing and dewatering tub 2, and a washing / dehydrating drive device 8 is attached to the outside of the bottom portion via a steel plate mounting base 7. Although not shown in the drawings, the outer tub 6 has four support rods that are suspended from the corner plates provided at the four corners of the upper end portion of the side frame 1 and are suspended from the outer tub 6 via a shock absorber. These four directions are engaged and supported uniformly to be suspended from the central portion of the side frame 1.

前記洗濯脱水駆動装置８は、インバータ駆動のブラシレス電動機を使用した洗濯脱水駆動電動機と電磁操作クラッチ機構と遊星歯車減速機構を内蔵し、洗濯脱水駆動電動機と電磁操作クラッチ機構を制御することによって、洗濯兼脱水槽２を静止させるように係止または自由に回転できるように解放した状態で脈動翼盤４を繰り返し正逆回転させる洗濯駆動モードと、洗濯兼脱水槽２と脈動翼盤４を一体的に同一方向に回転させる脱水駆動モードを選択的に実行する駆動機能を有する。   The washing / dehydrating drive device 8 incorporates a washing / dehydrating drive motor using an inverter-driven brushless motor, an electromagnetic operation clutch mechanism, and a planetary gear speed reduction mechanism, and controls the washing / dehydration drive motor and the electromagnetic operation clutch mechanism. The washing / driving tub 2 and the pulsating blade 4 are integrated with a washing drive mode in which the pulsating blade 4 is repeatedly rotated in the forward and reverse directions while being locked so as to be stationary or freely rotated. And a drive function for selectively executing a dehydration drive mode of rotating in the same direction.

外側衣類投入口９ａを形成した上カバー９は、側枠１の上部開口を覆うように該上部開口端縁に嵌め込んで取り付けねじによって側枠１に固定するように取り付ける。この上カバー９は、必要に応じて、複数の部材を組み合わせて構成する。上カバー９に形成した前記外側衣類投入口９ａは、基部ヒンジ１０によって上カバー９に取り付けた外蓋１１によって開閉自在に覆う。   The upper cover 9 formed with the outer garment insertion port 9a is attached so as to be fitted to the upper opening edge so as to cover the upper opening of the side frame 1 and fixed to the side frame 1 with an attaching screw. The upper cover 9 is configured by combining a plurality of members as necessary. The outer garment insertion port 9 a formed in the upper cover 9 is covered with an outer lid 11 attached to the upper cover 9 by a base hinge 10 so as to be freely opened and closed.

上カバー９は、図９〜図１１に示すように、外蓋１１が倒れて外側衣類投入口９ａを閉じた状態となったときに該外蓋１１の上面と該外蓋１１によって覆われない上カバー９の左右および後側の縁部の上面に段差が発生しないように、外蓋１１の前後左右縁が当接する外側衣類投入口９ａの外周縁を凹ませて段差面９ｂとして形成し、この段差面９ｂの前側は、閉じた状態の外蓋１１に覆われないように位置させて段差面９ｂと同幅で該段差面９ｂから下方に向けて前記外枠１の前面位置まで傾斜させたスイッチ実装面９ｃを形成している。   As shown in FIGS. 9 to 11, the upper cover 9 is not covered by the upper surface of the outer lid 11 and the outer lid 11 when the outer lid 11 falls and the outer clothing input port 9 a is closed. The outer peripheral edge of the outer garment insertion port 9a with which the front and rear left and right edges of the outer lid 11 abut is formed as a step surface 9b so that no step is generated on the upper surfaces of the left and right and rear edges of the upper cover 9. The front side of the step surface 9b is positioned so as not to be covered by the closed outer lid 11, and has the same width as the step surface 9b and is inclined downward from the step surface 9b to the front position of the outer frame 1. The switch mounting surface 9c is formed.

外蓋１１は、前記基部ヒンジ１０によって上カバー９に起伏自在に取り付ける後半部１１ａと該後半部１１ａの前縁に中間ヒンジ１１ｂによって屈伸可能に結合した前半部１１ｃによって構成する。   The outer lid 11 includes a rear half part 11a attached to the upper cover 9 by the base hinge 10 so as to be raised and lowered, and a front half part 11c connected to the front edge of the rear half part 11a so as to be able to bend and stretch by an intermediate hinge 11b.

この外蓋１１における前半部１１ｃは、図１１に示すように、外蓋１１を手動で開閉操作するために指先を挿し入れるように前半部１１ｃの後端部を凹ませて形成した取っ手部１１ｄと該取っ手部１１ｄの開口を塞ぐように位置すると共に指先で押圧することによって後退転角して該指先を取っ手部１１ｄ内に挿入可能にする取っ手部蓋１１ｅと、この取っ手部１１ｄの前側に連なるように位置させて設けた操作表示パネル部１２を備える。   As shown in FIG. 11, the front half portion 11c of the outer lid 11 has a handle portion 11d formed by recessing the rear end portion of the front half portion 11c so that a fingertip can be inserted to manually open and close the outer lid 11. And a handle lid 11e that is positioned so as to close the opening of the handle portion 11d and is retreated by pressing with the fingertip so that the fingertip can be inserted into the handle portion 11d, and a front side of the handle portion 11d. An operation display panel unit 12 is provided so as to be arranged in a row.

この外蓋１１は、取っ手部１１ｄに指先を挿し入れて前半部１１ｃの後端部分を引き上げ／押し下げるように操作して後半部１１ａを基部ヒンジ１０を支点にして起伏させることによって該後半部１１ａと前半部１１ｃを山折りに起立させて（開）／平坦に平伏させて（閉）とするように開閉操作する。   The outer lid 11 is inserted into the handle portion 11d and operated to raise / lower the rear end portion of the front half portion 11c so that the rear half portion 11a is raised and lowered with the base hinge 10 as a fulcrum. Then, the front half part 11c is stood up in a mountain fold (open) / flattened flatly (closed).

前記操作表示パネル部１２は、外蓋１１の前半部１１ｃの上面に位置させて主として該外蓋１１を閉じた状態で操作される指示入力ボタンスイッチ１２ａと表示パネル１２ｂを実装し、パネル制御回路基板１２ｃを内部に位置させて実装する。また、この操作表示パネル部１２は、表示パネル１２ｂを外蓋１１の前記取っ手部１１ｄの前側に連なるように位置させ、前記指示入力ボタンスイッチ１２ａを前記表示パネル１２ｂの前側に連なるように位置させて該指示入力ボタンスイッチ１２ａが取っ手部１１ｄから遠く離れるように配列するとこによって、取っ手部１１ｄを手で掴んで外蓋１１を開閉駆動操作するときに該手が指示入力ボタンスイッチ１２ａに触れ難くなるように構成する。   The operation display panel unit 12 is mounted with an instruction input button switch 12a and a display panel 12b, which are positioned on the upper surface of the front half 11c of the outer lid 11 and operated mainly with the outer lid 11 closed. The substrate 12c is mounted inside and mounted. Further, the operation display panel unit 12 positions the display panel 12b so as to be continuous with the front side of the handle portion 11d of the outer lid 11, and positions the instruction input button switch 12a so as to be continuous with the front side of the display panel 12b. Thus, when the instruction input button switch 12a is arranged so as to be far away from the handle portion 11d, it is difficult for the hand to touch the instruction input button switch 12a when the handle portion 11d is grasped by the hand and the outer lid 11 is opened and closed. Configure to be

上カバー９における段差面９ｂの左側の前縁部分には、粉末洗剤を投入する洗剤投入器１３を設置し、スイッチ実装面９ｃには、押しボタン式の電源スイッチ１４と洗剤量検出指示スイッチ１５を実装する。   A detergent feeder 13 for pouring powder detergent is installed on the left front edge portion of the step surface 9b of the upper cover 9, and a push button type power switch 14 and a detergent amount detection instruction switch 15 are installed on the switch mounting surface 9c. Is implemented.

前記洗濯兼脱水槽２を内包した外槽６の上側開口端には、内側衣類投入口２１ａを備えた外槽上カバー２１を取り付けることによって外槽６と洗濯兼脱水槽２の間の間隙を覆う。この外槽上カバー２１に形成した前記内側衣類投入口２１ａは、ヒンジ２２によって外槽上カバー２１に取り付けた内蓋２３によって開閉自在に覆うように構成する。   A gap between the outer tub 6 and the washing / dehydrating tub 2 is provided by attaching an outer tub upper cover 21 having an inner clothing inlet 21a to the upper opening end of the outer tub 6 containing the washing / dehydrating tub 2. cover. The inner garment insertion port 21 a formed in the outer tub upper cover 21 is configured to be opened and closed by an inner lid 23 attached to the outer tub upper cover 21 by a hinge 22.

外槽上カバー２１には、洗濯兼脱水槽２内に向けて開口するように噴気口２４を貫通させて取り付け、給水口２５を前記ヒンジ２２の下側に位置させて内側衣類投入口２１ａの中心部に向けて開口するように設け、前記洗剤投入器１３に蛇腹管１６，１８を介して連なる洗剤導入管１７と溢水管１９を洗濯兼脱水槽２と外槽６の間の間隙に向けて開口するように貫通させる。   The outer tub upper cover 21 is attached with a blow port 24 penetrating so as to open into the washing and dewatering tub 2, and the water supply port 25 is positioned below the hinge 22 so that the inner clothing input port 21 a A detergent introduction pipe 17 and an overflow pipe 19 connected to the detergent charging device 13 via bellows pipes 16 and 18 are directed toward the gap between the washing / dehydrating tub 2 and the outer tub 6. And penetrate to open.

内蓋２３は、その内側に散水管２６を備える。この散水管２６は、内蓋２３を閉じた状態で、先端の散水口２６ａを洗濯兼脱水槽２の略中心部の上方に下向きに開口させて洗濯水を洗濯兼脱水槽２内に広く降り掛けるように構成し、基端の受水口２６ｂを前記給水口２５に当接して受水するように構成する。   The inner lid 23 includes a watering pipe 26 inside thereof. The water sprinkling pipe 26 opens the water spout 26 a at the tip downward downward substantially above the center of the washing / dehydrating tub 2 with the inner lid 23 closed, so that the washing water falls widely into the washing / dehydrating tub 2. The water receiving port 26b at the base end is in contact with the water supply port 25 to receive water.

また、外槽６は、その下部の側壁に水位検出のためのエアトラップ６ａを形成し、エアチューブ２７を介して水位検出手段である感圧式の水位検出センサ２８に接続し、底部には排水兼排気口６ｂを設ける。   The outer tub 6 is formed with an air trap 6a for detecting the water level on the lower side wall thereof, connected to a pressure-sensitive water level detection sensor 28 serving as a water level detection means via an air tube 27, and drained at the bottom. A cum exhaust port 6b is provided.

前記排水兼排気口６ｂは、蛇腹管２９と内部配管３０を介して排水電磁弁３１と電動駆動の洗濯水循環ポンプ３２の各入水口に接続する。この排水電磁弁３１と洗濯水循環ポンプ３２は、外枠１に関連した固定部材に設置し、排水電磁弁３１の出水口は、外部排水ホース３３に接続し、洗濯水循環ポンプ３２の出水口は、内部配管３４と蛇腹管３５と内部配管３６を介して前記給水口２５に接続する。前記内部配管３６の途中には、糸屑フィルタ３７を着脱可能に設置する。   The drainage / exhaust port 6 b is connected to each water inlet of the drainage electromagnetic valve 31 and the electrically driven washing water circulation pump 32 via the bellows tube 29 and the internal pipe 30. The drain electromagnetic valve 31 and the washing water circulation pump 32 are installed on a fixing member related to the outer frame 1, the outlet of the drain electromagnetic valve 31 is connected to the external drain hose 33, and the outlet of the washing water circulation pump 32 is The water supply port 25 is connected via an internal pipe 34, a bellows pipe 35 and an internal pipe 36. A lint filter 37 is detachably installed in the middle of the internal pipe 36.

ここで、前記排水兼排気口６ｂと蛇腹管２９と内部配管３０と洗濯水循環ポンプ３２と内部配管３４，３６と蛇腹管３５と糸屑フィルタ３７と給水口２５と散水管２６は、洗濯水循環機構を構成する。   Here, the drainage / exhaust port 6b, the bellows pipe 29, the internal pipe 30, the washing water circulation pump 32, the internal pipes 34, 36, the bellows pipe 35, the lint filter 37, the water supply port 25, and the sprinkling pipe 26 are a washing water circulation mechanism. Configure.

外枠１の後側面の内側には、水冷除湿機構３８を設置する。この水冷除湿機構３８の基本的な構成は、既に知られているように、外槽６内の湿潤した空気を排水兼排気口６ｂから吸い出し、水冷除湿した後に加熱することによって相対湿度を低下させて洗濯兼脱水槽２の上方から該洗濯兼脱水槽２内に吹き込むように構成する乾燥空気循環系の一部を構成する。   A water-cooled dehumidifying mechanism 38 is installed inside the rear side surface of the outer frame 1. As already known, the basic structure of the water-cooled dehumidifying mechanism 38 is to reduce the relative humidity by sucking the humid air in the outer tub 6 from the drain / exhaust port 6b, heating it after water-cooling and dehumidifying. Thus, a part of the dry air circulation system configured to blow into the washing / dehydrating tub 2 from above the washing / dehydrating tub 2 is configured.

水冷除湿機構３８は、蛇腹管３９を介して前記排水兼排気口６ｂに接続された水冷除湿風路４０を備え、この水冷除湿風路４０内には上端部に冷却水流出管４１ａを備えた水冷除湿板４１を設置し、途中に糸屑フィルタ４２と電動送風機４３を設ける。水冷除湿風路４０は、蛇腹管３９から上方に向けて伸びるように設けた上昇風路４０ａ内に前記水冷除湿板４１を設置する。そして、上昇風路４０ａの上端部から折り返して下方に向けて伸びる下降風路（図示省略）を設け、この折り返し部に前記糸屑フィルタ４２を着脱可能に設置する。下降風路内には該下降風路内を流れる空気の湿度に感応する湿度検出センサと温度センサ（後述する）を設置する。この下降風路の下端部に前記電動送風機４３の吸気口を接続し、この電動送風機４３の排気口から上方に向けて伸びる上昇風路（図示省略）を設ける。   The water-cooled dehumidifying mechanism 38 includes a water-cooled dehumidifying air passage 40 connected to the drainage / exhaust port 6b through a bellows tube 39. The water-cooled dehumidifying air passage 40 includes a cooling water outflow pipe 41a at the upper end. A water-cooled dehumidifying plate 41 is installed, and a lint filter 42 and an electric blower 43 are installed on the way. In the water-cooled dehumidifying air passage 40, the water-cooled dehumidifying plate 41 is installed in an ascending air passage 40a provided so as to extend upward from the bellows tube 39. A descending air passage (not shown) that is folded back from the upper end of the ascending air passage 40a and extends downward is provided, and the lint filter 42 is detachably installed in the folded portion. A humidity detection sensor and a temperature sensor (described later) that are sensitive to the humidity of the air flowing in the down air path are installed in the down air path. An intake port of the electric blower 43 is connected to a lower end portion of the descending air passage, and a rising air passage (not shown) extending upward from the exhaust port of the electric blower 43 is provided.

上昇風路の先は、空気加熱管４４と蛇腹管４５を介して前記噴気口２４に接続し、前記空気加熱管４４内には循環空気を加熱する電熱ヒータであるＰＴＣヒータ４６を設置する。   The tip of the ascending air path is connected to the jet port 24 via an air heating pipe 44 and a bellows pipe 45, and a PTC heater 46, which is an electric heater for heating circulating air, is installed in the air heating pipe 44.

上カバー９の後部には、後部収納部９ｅを形成し、この後部収納部９ｅ内に前記水位検出センサ２８を設置し、更に、水道からの受水口４７や前記洗剤投入器１３に設けた洗剤給水口や前記給水口２５（散水管２６）や前記水冷除湿機構３８における水冷除湿板４１の冷却水流出管４１ａへの給水を制御する電磁弁などの給水機構４８を内蔵する。給水機構４８から給水口２５への給水は、内部配管３６を介して行うように構成する。   A rear storage portion 9e is formed at the rear portion of the upper cover 9, and the water level detection sensor 28 is installed in the rear storage portion 9e. Further, the detergent provided in the water inlet 47 from the water supply or the detergent feeder 13 A water supply mechanism 48 such as an electromagnetic valve for controlling water supply to the cooling water outflow pipe 41a of the water cooling / dehumidifying plate 41 in the water cooling / dehumidifying mechanism 38 is incorporated. Water supply from the water supply mechanism 48 to the water supply port 25 is configured to be performed via the internal pipe 36.

この電気洗濯機の制御装置を構成する制御系は、図１２に示すように、操作表示パネル部１２に設けた指示入力ボタンスイッチ１２ａは、各種の洗濯コースを設定するコース設定スイッチやスタートを指示するスタートスイッチなどのスイッチ群を備え、表示パネル１２ｂは、設定された洗濯コースの表示と各工程（処理）の進行状態や検出した洗剤量を表示する。   As shown in FIG. 12, an instruction input button switch 12a provided on the operation display panel unit 12 indicates a course setting switch for setting various washing courses and a start, as shown in FIG. The display panel 12b displays the set washing course, the progress of each process (processing), and the detected amount of detergent.

コントローラ４９は、マイクロコンピュータ４９ａと負荷駆動回路４９ｂと内部電源回路４９ｃと電源自己保持リレー４９ｄを備え、電源スイッチ１４が投入されると、内部電源回路４９ｃが機能し、マイクロコンピュータ４９ａが起動して制御処理プログラムを実行することによって負荷駆動回路４９ｂと電源自己保持リレー４９ｄと表示パネル１２ｂを制御するように構成する。このコントローラ４９は、上カバー９内に設けた空間または外枠１内に設けた空間に実装する。   The controller 49 includes a microcomputer 49a, a load drive circuit 49b, an internal power supply circuit 49c, and a power supply self-holding relay 49d. When the power switch 14 is turned on, the internal power supply circuit 49c functions and the microcomputer 49a is activated. The load driving circuit 49b, the power supply self-holding relay 49d, and the display panel 12b are controlled by executing the control processing program. The controller 49 is mounted in a space provided in the upper cover 9 or a space provided in the outer frame 1.

そして、コントローラ４９におけるマイクロコンピュータ４９ａは、操作表示パネル部１２に実装した指示入力ボタンスイッチ１２ａと洗剤量検出指示スイッチ１５と水位検出センサ２８と湿度検出センサ５０と温度検出センサ５１に接続してこれらからの信号を入力し、操作表示パネル部１２に実装した表示パネル１２ｂと負荷駆動回路４９ｂに接続してこれらを制御し、負荷駆動回路４９ｂは、前記洗濯脱水駆動装置８における洗濯脱水駆動電動機８ａと電磁操作クラッチ機構８ｂと、前記排水電磁弁３１，洗濯水循環ポンプ３２，電動送風機４３，ＰＴＣヒータ４６と、前記給水機構４８における洗剤給水電磁弁４８ａと洗濯給水電磁弁４８ｂと冷却給水電磁弁４８ｃに接続してこれらへの給電を制御する。   The microcomputer 49 a in the controller 49 is connected to the instruction input button switch 12 a, the detergent amount detection instruction switch 15, the water level detection sensor 28, the humidity detection sensor 50, and the temperature detection sensor 51 mounted on the operation display panel unit 12. Are input to the display panel 12b mounted on the operation display panel unit 12 and connected to the load drive circuit 49b to control them, and the load drive circuit 49b controls the washing / dehydrating drive motor 8a in the washing / dehydrating drive device 8. The electromagnetic clutch mechanism 8b, the drainage electromagnetic valve 31, the washing water circulation pump 32, the electric blower 43, the PTC heater 46, the detergent water supply electromagnetic valve 48a, the laundry water supply electromagnetic valve 48b, and the cooling water supply electromagnetic valve 48c in the water supply mechanism 48. To control the power supply to them.

この実施例における洗濯脱水駆動電動機８ａは、インバータ駆動のブラシレス電動機であり、図１３に示すように、３相の電機子巻線である固定子巻線８ａ１と回転子の磁極（図示省略）からの磁束を検出する磁気センサ８ａ２を備える。そして、負荷駆動回路４９ｂは、この洗濯脱水駆動電動機８ａを駆動するための系として、入力した交流電源電圧を整流して約２８０Ｖに昇圧した直流電圧を生成する倍電圧整流回路４９ｂ１と、洗濯脱水駆動電動機８ａの固定子巻線８ａ１に印加する３相交流電圧を発生するインバータ回路４９ｂ２と、インバータ回路４９ｂ２を制御するインバータ駆動回路４９ｂ３と、洗濯脱水駆動電動機８ａにおける回転子の磁極の回転位置を検出する磁極回転位置検出回路４９ｂ４と、倍電圧整流回路４９ｂ１から出力する直流電圧を検出する直流電圧検出回路４９ｂ５と、倍電圧整流回路４９ｂ１から出力する負荷電流を検出する負荷電流検出回路４９ｂ６と、高周波ノイズ遮断回路４９ｂ７を備え、マイクロコンピュータ４９ａは、磁極回転位置検出回路４９ｂ４から出力する回転子の磁極回転位置信号を参照しながら該回転子を所定の回転速度で回転させるように前記インバータ駆動回路４９ｂ３を制御する回転速度制御演算処理を実行する。なお、マイクロコンピュータ４９ａは、回転速度制御演算処理のために、必要に応じて、直流電圧検出回路４９ｂ５および負荷電流検出回路４９ｂ６からの検出信号を入力して参照する。 Washing dewatering drive motor 8a in this embodiment is a brushless motor inverter drive, as shown in FIG. 13, the stator windings 8a 1 and the magnetic pole of the rotor (not shown) which is an armature winding of a three-phase equipped with a magnetic sensor 8a 2 for detecting the magnetic flux from. The load drive circuit 49b as a system for driving the washing dewatering drive motor 8a, a voltage doubler rectifier circuit 49b 1 which generates a DC voltage obtained by boosting the AC power supply voltage input to the rectifier to about 280 V, washing An inverter circuit 49b 2 that generates a three-phase AC voltage to be applied to the stator winding 8a 1 of the dehydration drive motor 8a, an inverter drive circuit 49b 3 that controls the inverter circuit 49b 2 , and a rotor in the washing / dehydration drive motor 8a. the magnetic pole rotational position detection circuit 49b 4 for detecting the rotational position of the magnetic poles, a DC voltage detection circuit 49b 5 for detecting the DC voltage output from the voltage doubler rectifier circuit 49b 1, the load current to be output from the voltage doubler rectifier circuit 49b 1 a load current detecting circuit 49b 6 to be detected, with a high frequency noise cutoff circuit 49b 7, the microcomputer 49a is magnetized It controls the rotary speed arithmetic processing for controlling the inverter driving circuit 49b 3 to rotate the rotor at a predetermined rotational speed with reference to the magnetic pole rotational position signal of the rotor to be output from the rotational position detection circuit 49b 4 . Incidentally, the microcomputer 49a, for the rotational speed control calculation process, if necessary, to refer to input detection signals from the DC voltage detection circuit 49b 5 and the load current detecting circuit 49b 6.

洗濯脱水駆動電動機８ａであるインバータ駆動のブラシレス電動機は、入力する交流電源電圧の変動保障下限値、例えば１００Ｖ定格の商用交流電源における−１０％の低い電圧（交流電源電圧９０Ｖ、倍電圧整流回路４９ｂ１の直流出力電圧で約２８０Ｖ−２８Ｖ＝約２５２Ｖ）において洗濯および脱水工程に必要な回転出力特性が得られるように構成する。このような特性のブラシレス電動機は、電機子巻線の線径を太くし、巻き数を少なくすることによって実現することができる。 The inverter-driven brushless motor, which is the washing / dehydrating drive motor 8a, has an input AC power supply voltage fluctuation guarantee lower limit value, for example, a low voltage of −10% in a commercial AC power supply rated at 100V (AC power supply voltage 90V, voltage doubler rectifier circuit 49b). The rotation output characteristic necessary for the washing and dehydration process is obtained at about 280V-28V = about 252V at a DC output voltage of 1 . A brushless motor having such characteristics can be realized by increasing the diameter of the armature winding and reducing the number of turns.

また、インバータ回路４９ｂ２は、出力する交流電圧波形内をパルス状に細断してパルス幅変調（ＰＷＭ）制御することによって洗濯脱水駆動電動機８ａに印加する交流電圧の実効値を制御する実効値制御機能を備え、電源電圧の変動保障下限値において所望の回転出力特性が得られるように構成した洗濯脱水駆動電動機（ブラシレス電動機）８ａに対して電源電圧が変動保障下限値を越えた状態にあるときに過剰な電圧を印加しないように制御する。更に、インバータ回路４９ｂ２は、マイクロコンピュータ４９ａとインバータ駆動回路４９ｂ３に制御されて、前記ブラシレス電動機８ａへの給電を前記ＰＷＭ制御のほかにベクトル制御してブラシレス電動機８ａの運転効率を高めることによって、ブラシレス電動機５ａの負荷電流を軽減すると共にブラシレス電動機５ａと給電系の形態の大型化を抑制する。 Further, the inverter circuit 49b 2 chops the AC voltage waveform to be output into a pulse shape and performs pulse width modulation (PWM) control, thereby controlling the effective value of the AC voltage applied to the washing / dehydrating drive motor 8a. The power supply voltage is in a state in which the power supply voltage exceeds the fluctuation guarantee lower limit for the washing / dehydrating drive motor (brushless motor) 8a having a control function and configured to obtain a desired rotation output characteristic at the fluctuation guarantee lower limit of the power supply voltage. Control is performed so that an excessive voltage is not sometimes applied. Further, the inverter circuit 49b 2 is controlled by the microcomputer 49a and the inverter drive circuit 49b 3 to increase the operation efficiency of the brushless motor 8a by vector-controlling the power supply to the brushless motor 8a in addition to the PWM control. The load current of the brushless motor 5a is reduced, and the brushless motor 5a and the power supply system are prevented from being enlarged.

前記マイクロコンピュータ４９ａは、電源スイッチ１４が押されて電源が投入されると起動し、図１４および図１５に示すような洗濯および乾燥の基本的な制御処理プログラムを実行するように構成する。   The microcomputer 49a is activated when the power switch 14 is pressed and the power is turned on, and is configured to execute a basic control processing program for washing and drying as shown in FIGS.

この実施例における電気洗濯機では、洗濯工程において外槽６の底部に溜める洗い水および濯ぎ水の水位は、基本的には、脈動翼盤４を所定の回転速度で正逆回転させながら洗濯水を循環させている洗濯状態において、外槽６の底部に溜っている洗濯水が脈動翼盤４の上面を大幅に越えて該脈動翼盤４上の洗濯物を浮遊させるように浸すような水位まで大幅に上昇するのを避けなければならない。但し、脈動翼盤４上の洗濯物に多量の洗濯水を含ませた後に脈動翼盤４の回転と洗濯水の循環を停止した状態を長時間継続すると、洗濯物に含まれる洗濯水と洗濯水循環系内の洗濯水は、重力で流下して外槽６の底部に溜ることから、このような状態での洗濯水位が脈動翼盤４の上面を越えることは許容される。そこで、この実施例では、洗濯水給水制御のための設定水位として、通常の布量の洗濯物の洗濯では、洗濯兼脱水槽２内の脈動翼盤４の下面の高さより僅かに低い水位ｈ１を設定し、通常の布量を下回る極少布量の洗濯物の洗濯では、前記水位ｈ１よりも僅か（約１０ｃｍ程度）に高い水位（洗濯兼脱水槽２内の脈動翼盤４の***部４ｃの頂上部の最高部位に略等しい水位）ｈ２を設定した。そして、給水工程においては、所定量の水を給水して洗濯物の量に応じて投入された粉末洗剤を溶かして高洗剤濃度の洗い水を生成する。洗い工程では、洗濯兼脱水槽２を静止させた状態で脈動翼盤４を正逆回転させながら外槽６の底部に溜った高洗剤濃度の洗い水を洗濯物に降り掛けるように循環させることによって、脈動翼盤４上で高洗剤濃度の洗い水を含んだ洗濯物に該脈動翼盤４の***部４ａの傾斜面から該洗濯物に上向きの分力を繰り返し作用させる押し洗いを行う。濯ぎ工程では、洗い工程と同様な水位の濯ぎ水により、洗濯兼脱水槽２を静止させた状態で脈動翼盤４を所定の回転速度で正逆回転させながら外槽６の底部に溜った濯ぎ水を洗濯物に降り掛けるように循環させることによって、脈動翼盤４上で洗い水を含んだ洗濯物に該脈動翼盤４の***部４ａの傾斜面から該洗濯物に上向きの分力を繰り返し作用させて洗い水を押し出す濯ぎを行う。乾燥工程では、遠心脱水された洗濯兼脱水槽２内の洗濯物を脈動翼盤４の所定の回転速度の正逆回転によって撹拌しながら外槽６内の湿潤した空気を吸い出して水冷除湿した後に加熱して洗濯兼脱水槽２内に吹き込むように循環させる。 In the electric washing machine according to this embodiment, the water level of the washing water and the rinsing water accumulated at the bottom of the outer tub 6 in the washing process is basically determined by rotating the pulsating blade 4 forward and backward at a predetermined rotational speed. In the washing state in which the washing circulates, the washing water accumulated at the bottom of the outer tub 6 greatly exceeds the upper surface of the pulsating blade 4 and immerses the laundry on the pulsating blade 4 so as to float. It must be avoided to rise significantly. However, if the laundry on the pulsating blade board 4 contains a large amount of washing water and the rotation of the pulsating blade board 4 and the circulation of the washing water are stopped for a long time, the washing water contained in the laundry and the washing are washed. Since the wash water in the water circulation system flows down by gravity and accumulates at the bottom of the outer tub 6, the wash water level in such a state is allowed to exceed the upper surface of the pulsating blade board 4. Therefore, in this embodiment, as the set water level for the washing water supply control, in the case of washing a normal amount of laundry, the water level h slightly lower than the height of the lower surface of the pulsating blade 4 in the washing / dehydrating tub 2 In the case of washing laundry with an extremely small amount of cloth that is less than the normal amount of cloth, the level of the pulsating blade 4 in the washing / dehydrating tub 2 is slightly higher than the water level h 1 (about 10 cm). It was set approximately equal level) h 2 in the highest part of the top of the part 4c. In the water supply step, a predetermined amount of water is supplied to dissolve the powder detergent added according to the amount of laundry to generate wash water having a high detergent concentration. In the washing step, the washing water having a high concentration of detergent accumulated at the bottom of the outer tub 6 is circulated so as to fall on the laundry while rotating the pulsating blade 4 forward and backward while the washing / dehydrating tub 2 is stationary. Thus, on the pulsating blade 4, the washing containing the washing water having a high detergent concentration is pushed and washed by repeatedly applying an upward component force to the laundry from the inclined surface of the raised portion 4 a of the pulsating blade 4. In the rinsing step, the rinsing water collected at the bottom of the outer tub 6 while rotating the pulsating blade 4 forward and backward at a predetermined rotational speed with the washing / dehydrating tub 2 being kept stationary by rinsing water at the same level as the washing step. By circulating water so as to fall on the laundry, an upward component force is applied to the laundry from the inclined surface of the raised portion 4a of the pulsating blade 4 to the laundry containing the washing water on the pulsating blade 4. Rinse is performed by repeatedly applying the washing water. In the drying process, after the centrifugally dewatered laundry in the washing and dewatering tub 2 is agitated by forward and reverse rotation at a predetermined rotational speed of the pulsating blade 4, the moist air in the outer tub 6 is sucked out and water-cooled and dehumidified. It is circulated so as to be heated and blown into the washing and dewatering tank 2.

この実施例の脈動翼盤４は、***部４ａが回動することによってその表面が上下動して洗濯物を繰り返し押し上げて振動させることにより洗浄力を発生する。具体的には、洗濯物は、脈動翼盤４上を滑りつつ上下方向と円周方向に振動するように動いて洗浄される。   The pulsating blade 4 of this embodiment generates a cleaning force by rotating the raised portion 4a and moving the surface up and down repeatedly to vibrate the laundry. Specifically, the laundry is washed by moving so as to vibrate in the vertical direction and the circumferential direction while sliding on the pulsating blade 4.

洗い工程における洗濯物の動きおよび洗浄作用について、図１６および図１７の模式図を参照して説明する。図１６は、脈動翼盤４を円周方向に展開して該脈動翼盤４上の円周方向の各位置における洗濯物６０の上下方向の動きを示すものであり、図１７は、脈動翼盤４を上方から見て該脈動翼盤４上の洗濯物６０の円周方向の動きを示すものである。各位置における洗濯物６０の動きと洗浄力発生の原理は、次の通りである。   The movement and washing action of the laundry in the washing process will be described with reference to the schematic diagrams of FIGS. FIG. 16 shows the vertical movement of the laundry 60 at each position in the circumferential direction on the pulsating blade board 4 when the pulsating blade board 4 is developed in the circumferential direction. This shows the circumferential movement of the laundry 60 on the pulsating blade 4 when the board 4 is viewed from above. The principle of the movement of the laundry 60 and the generation of cleaning power at each position is as follows.

（１）***部４ａの周方向の傾斜面を上る部分（図１６における（ａ）の位置）
***部４ａの上り勾配によって洗濯物６０ａを下から繰り返し押し上げることにより、洗濯物６０ａを繰り返し圧縮して押し洗い作用の洗浄力を発生する。 (1) The part which goes up the inclined surface of the circumferential direction of the protruding part 4a (position of (a) in FIG. 16)
By repeatedly pushing up the laundry 60a from the bottom by the upward slope of the raised portion 4a, the laundry 60a is repeatedly compressed to generate a washing force of a push-washing action.

（２）***部４ａの頂点を越える部分（図１６における（ｂ）の位置）
***部４ａの上り勾配によって上方に押し上げられる洗濯物６０ｂは、***部４ａを越えた位置で跳ね上がって該***部４ａとの間に隙間が発生する。また、このとき、円周方向の速度が増加し、円周方向に隣接する洗濯物間（洗濯物６０ａと洗濯物６０ｂの間および洗濯物６０ｄと洗濯物６０ｅの間）に隙間が発生する。上方から降り掛けられる高洗剤濃度の洗い水は、これらの隙間に侵入して洗濯物６０の内部に効果的に浸透する。そのために、脈動翼盤４の上面を越えない水位を維持した状態であっても洗濯物６０の全体に洗い水が行き渡る。 (2) A portion beyond the apex of the raised portion 4a (position (b) in FIG. 16)
The laundry 60b pushed upward by the upward slope of the raised portion 4a jumps up at a position beyond the raised portion 4a, and a gap is generated between the raised portion 4a. At this time, the speed in the circumferential direction increases, and a gap is generated between the laundry adjacent in the circumferential direction (between the laundry 60a and the laundry 60b and between the laundry 60d and the laundry 60e). Wash water having a high detergent concentration that descends from above penetrates into the gaps and effectively penetrates into the laundry 60. Therefore, even if the water level that does not exceed the upper surface of the pulsating blade 4 is maintained, the washing water reaches the entire laundry 60.

（３）***部４ａの傾斜面を下る部分から谷部４ｄまでの部分（図１６における（ｃ）の位置）
***部４ａにおいて跳ね上げられた洗濯物６０ｃは、***部４ａの下り勾配から谷部４ｄの位置に落下することによって押し洗いと叩き洗い作用の洗浄力を発生する。このとき、円周方向の速度が遅い隣の洗濯物６０ｄとの衝突も発生し、円周方向前後の洗濯物６０同士の間でも押し洗いと叩き洗い作用の洗浄力が発生する。更に、洗濯物６０内に滲み込んでいた洗い水が汚れと共に押し出される。 (3) The part from the part which goes down the inclined surface of the protruding part 4a to the trough part 4d (position (c) in FIG. 16)
The laundry 60c bounced up in the raised portion 4a falls to the position of the valley portion 4d from the descending slope of the raised portion 4a, thereby generating a washing force for pushing and tapping. At this time, a collision with the adjacent laundry 60d having a slow circumferential speed also occurs, and a washing force for pushing and tapping is also generated between the laundry 60 before and after the circumferential direction. Furthermore, the washing water that has permeated into the laundry 60 is pushed out together with the dirt.

（４）洗濯物６０の上下方向の運動の向きが逆の部分（図１６における（ｂ）と（ｃ）の間および（ｃ）と（ａ）の間）
***部４ａによって跳ね上げられる洗濯物６０ｂと落下する洗濯物６０ｃおよび落下する洗濯物６０ｃと押し上げられる洗濯物６０ａは、運動方向が逆方向であり、洗濯物を両手で互いに逆方向に運動させて洗う手揉み洗いと同様に運動する揉み洗い作用で洗浄力が発生する。 (4) The part where the direction of the vertical movement of the laundry 60 is reversed (between (b) and (c) and (c) and (a) in FIG. 16)
The laundry 60b jumped up by the ridge 4a and the falling laundry 60c and the falling laundry 60c and the laundry 60a pushed up are opposite in direction of movement, and the laundry is moved in opposite directions with both hands. Detergency is generated by the scouring action that moves in the same way as hand-washing.

なお、上記（１）〜（４）の洗浄作用を最大限に発揮するためには、前記脈動翼盤４の望ましい寸法においては、脈動翼盤４の回転速度を１３０〜１４０ｒｐｍとすることが望ましい。回転速度がこれよりも遅い場合には、洗濯物６０の動きが小さくなって洗浄作用が低下する。そして、回転速度がこれよりも早い場合には、脈動翼盤４表面の上下動に洗濯物６０が追従できずに該洗濯物６０の動きが小さくなって洗浄作用が低下する。   In order to maximize the cleaning action (1) to (4), it is desirable that the rotational speed of the pulsating blade 4 is 130 to 140 rpm in the desirable dimensions of the pulsating blade 4. . When the rotational speed is slower than this, the movement of the laundry 60 becomes small and the cleaning action is reduced. If the rotational speed is faster than this, the laundry 60 cannot follow the vertical movement of the surface of the pulsating blade 4 and the movement of the laundry 60 becomes small, and the cleaning action is reduced.

このように、脈動翼盤４を回転させながら高洗剤濃度の洗い水を循環させて行なう洗浄は、非常に少ない洗い水で、押し洗い、叩き洗い、揉み洗いの三つの作用を同時に複合的に発揮して高い洗浄力が得られる。   In this way, the washing performed by circulating the washing water having a high detergent concentration while rotating the pulsating blade 4 is combined with three actions of pressing washing, tapping washing and scouring washing at the same time with very little washing water. Demonstrates high detergency.

このような脈動翼盤４による洗濯物６０の運動は、濯ぎ工程においても好適である。洗濯物が跳ね上げられて発生した洗濯物間の隙間は濯ぎ水の侵入を容易にして該洗濯物６０内に浸透させることから、洗濯物６０内に滲み込んでいた洗い水と洗剤成分を同様な作用で押し出して濯ぎ効率を高める。   Such a movement of the laundry 60 by the pulsating blade 4 is also suitable in the rinsing process. The gap between the laundry generated when the laundry is splashed up easily allows the rinsing water to infiltrate and permeate into the laundry 60. Therefore, the washing water and the detergent component that have soaked into the laundry 60 are the same. The rinsing efficiency is increased by extruding with a gentle action.

また、乾燥工程においても好適である。洗濯物が跳ね上げられて発生した洗濯物間の隙間は温風が進入することから、洗濯物の外周表面だけでなく該洗濯物の内部にも温風が行き渡って水分蒸発を促進して乾燥効率を高める。更に、布絡みが少ない洗濯物の運動は皺の少ない乾燥を実現する。   Moreover, it is suitable also in a drying process. Since warm air enters the gap between the laundry that is generated when the laundry is splashed up, the hot air spreads not only on the outer peripheral surface of the laundry but also inside the laundry to promote moisture evaporation and dry. Increase efficiency. Furthermore, the movement of laundry with less fabric entanglement achieves drying with less wrinkles.

このような洗濯および乾燥を実現するために前記マイクロコンピュータ４９ａが実行する制御処理を図１４および図１５を参照して説明する。   A control process executed by the microcomputer 49a in order to realize such washing and drying will be described with reference to FIGS.

ステップＳ１０１
電源自己保持リレー４９ｄを閉じて電源を確保すると共に状態確認および初期設定を行う。 Step S101
The power supply self-holding relay 49d is closed to secure the power supply, and the state confirmation and initial setting are performed.

ステップＳ１０２
操作表示パネル部１２の表示パネル１２ｂを点灯表示し、指示入力ボタンスイッチ１２ａからの指示入力に従って洗濯コースを設定する。所定時間経過後に洗濯する予約コースもこの洗濯コース設定において設定する。指示入力がない状態では、標準の洗濯コースまたは前回実施の洗濯コースを自動的に設定する。 Step S102
The display panel 12b of the operation display panel unit 12 is turned on and a washing course is set according to an instruction input from the instruction input button switch 12a. A reservation course for washing after a predetermined time elapses is also set in this washing course setting. When no instruction is input, the standard washing course or the previous washing course is automatically set.

ステップＳ１０３
洗剤量検出指示スイッチ１５からの指示入力信号を監視し、その指示入力に応じて処理を分岐する。使用者は、外蓋１１と内蓋２３を開けて洗濯兼脱水槽２内に洗濯物を投入し、または洗濯物を投入すると共に洗剤投入器１３の粉末洗剤投入空間部１３２ｂに粉末洗剤を投入し、仕上げ剤投入空間部１３２ｃを投入して内蓋２３および外蓋１１を閉じ、そして、洗濯物のみを投入したときには投入する洗剤の適量を知るために洗剤量検出指示スイッチ１５を操作する。 Step S103
The instruction input signal from the detergent amount detection instruction switch 15 is monitored, and the process branches according to the instruction input. The user opens the outer lid 11 and the inner lid 23 and puts the laundry into the washing and dewatering tub 2, or throws the laundry and throws the powder detergent into the powder detergent throwing space 132 b of the detergent thrower 13. Then, the finishing agent charging space 132c is inserted to close the inner lid 23 and the outer lid 11, and when only the laundry is loaded, the detergent amount detection instruction switch 15 is operated to know an appropriate amount of the detergent to be loaded.

ステップＳ１０４
洗剤量検出指示スイッチ１５から指示入力があると、布量を検出して洗剤量を求め、更に洗濯水量（水位）を設定する処理を実行する。この布量の検出は、洗い水を給水する前の乾布状態において、洗濯兼脱水槽２を静止させた状態で脈動翼盤４を一方向に回転させたときに該脈動翼盤４に作用する回転負荷量に基づいて洗濯物の布量を検出するように洗濯脱水駆動装置８における洗濯脱水駆動電動機８ａと電磁操作クラッチ機構８ｂを制御して行。洗剤量の算出は、検出した布量に基づいて洗剤の適量（洗剤量）を求めることによって行う。好ましい洗剤量は、予め設定した布量と洗剤量の対照テーブルを参照することによって求める。具体的には、布量の検出は、洗濯脱水駆動電動機８ａを所定の回転速度で回転させるようにインバータ回路４９ｂ2を制御し、所定時間経過後の負荷電流（実測値または演算値）に基づいて行う。因に、負荷電流は、洗濯物の布量に比例することから、この負荷電流に基づいて求めることができる。 Step S104
When an instruction is input from the detergent amount detection instruction switch 15, the amount of detergent is obtained by detecting the amount of cloth, and further, a process for setting the amount of washing water (water level) is executed. This detection of the amount of cloth acts on the pulsating blade plate 4 when the pulsating blade plate 4 is rotated in one direction with the washing and dewatering tub 2 stationary in the dry cloth state before supplying the washing water. The laundry dewatering drive motor 8a and the electromagnetically operated clutch mechanism 8b in the laundry dewatering drive device 8 are controlled so as to detect the amount of laundry based on the rotational load. The amount of detergent is calculated by obtaining an appropriate amount of detergent (detergent amount) based on the detected cloth amount. The preferred detergent amount is determined by referring to a preset table of cloth amount and detergent amount. Specifically, the amount of cloth is detected by controlling the inverter circuit 49b2 to rotate the washing / dehydrating drive motor 8a at a predetermined rotational speed, and based on the load current (actually measured value or calculated value) after a predetermined time has elapsed. Do. Incidentally, since the load current is proportional to the amount of laundry cloth, it can be obtained based on this load current.

洗濯水量は、布量が所定の布量の範囲（適量）内のときには脈動翼盤４を越えない水位を維持して外槽６の底部に溜まるように洗濯水量（水位ｈ１）を設定し、所定の布量の範囲を下回る過少のときには脈動翼盤４を僅かに越える水位を維持して外槽６の底部に溜まるように洗濯水量（水位ｈ２）を設定する。 The washing water amount (water level h 1 ) is set so that the water level does not exceed the pulsating blades 4 and accumulates at the bottom of the outer tub 6 when the cloth amount is within the predetermined range (appropriate amount) of the cloth amount. When the amount is less than the predetermined cloth amount range, the washing water amount (water level h 2 ) is set so that the water level slightly exceeding the pulsating blade board 4 is maintained and accumulated at the bottom of the outer tub 6.

また、この検出結果（布量）に基づいて洗濯時間を求めて設定する。   Further, the washing time is obtained and set based on the detection result (cloth amount).

布量検出が行われないときには、それぞれ、標準の値を設定する。   When the cloth amount is not detected, a standard value is set.

ステップＳ１０５
求めた洗剤量を操作表示パネル部１２の表示パネル１２ｂに表示する。使用者は、表示された量の粉末洗剤を洗剤投入器１３に投入した後に外蓋１１を閉じるように操作する。粉末洗剤投入器１３に投入された粉末洗剤の一部は、洗剤導入管１７を通して外槽６の底部に落下する。 Step S105
The determined amount of detergent is displayed on the display panel 12b of the operation display panel unit 12. The user operates to close the outer lid 11 after putting the indicated amount of the powder detergent into the detergent thrower 13. Part of the powder detergent put into the powder detergent feeder 13 falls to the bottom of the outer tub 6 through the detergent introduction tube 17.

ステップＳ１０６
操作表示パネル部１２の指示入力ボタンスイッチ１２ａにおけるスタートスイッチからの指示入力を監視して処理を分岐する。 Step S106
The process branches after monitoring the instruction input from the start switch in the instruction input button switch 12a of the operation display panel unit 12.

ステップＳ１０７
指示入力ボタンスイッチ１２ａにおけるスタートスイッチからの指示入力があると、水位検出センサ２８から出力する水位検出信号を参照して外槽６内の水位を確認して処理を分岐する。外槽６内の水位が設定水位ｈ１，ｈ２から粉末洗剤を流し込むための洗剤給水量による水位上昇分を差し引いた水位を越える水位が検出されていたときには異常水位とし、それ以下の水位が検出されたときには正常水位とする。 Step S107
When there is an instruction input from the start switch in the instruction input button switch 12a, the water level in the outer tub 6 is confirmed with reference to the water level detection signal output from the water level detection sensor 28, and the process branches. When the water level in the outer tub 6 exceeds the set water level h 1 , h 2 exceeding the level obtained by subtracting the water level increase due to the amount of detergent supplied to pour the detergent powder, the water level is regarded as an abnormal water level. When detected, the water level is normal.

ステップＳ１０８
外槽６内の水位を正常水位まで下げるように排水電磁弁３１を開放して外槽６内の水を排水する。 Step S108
The drain electromagnetic valve 31 is opened so that the water level in the outer tub 6 is lowered to the normal water level, and the water in the outer tub 6 is drained.

ステップＳ１０９
外槽６内の水位が設定水位ｈ１，ｈ２から粉末洗剤を流し込むための洗剤給水量による水位上昇分を差し引いた水位以下の水位が検出されると、正常水位として、排水電磁弁３１を閉じる。 Step S109
When the water level in the outer tub 6 is detected to be equal to or lower than the water level obtained by subtracting the water level increase due to the amount of detergent supplied for pouring the powder detergent from the set water levels h 1 and h 2 , the drain electromagnetic valve 31 is set as a normal water level. close.

ステップＳ１１０
外蓋１１が閉じているときには、洗剤給水電磁弁４８ａを開放して洗剤投入器１３に所定量の洗剤給水を実行する。この洗剤給水電磁弁４８ａの開放は、先ず、他の給水電磁弁（例えば、洗濯給水電磁弁４８ｂや冷却給水電磁弁４８ｃ）を開いて洗剤給水電磁弁４８ａの入り口の水道水圧を低下させた状態で行って洗剤給水の流入速度を抑制することにより、洗剤給水管（図示省略）内の空気が洗剤給水によって強い勢い押し出されて洗剤投入器１３内の粉末洗剤を飛散させるのを防止する。この実施例では、洗剤給水量を洗剤量に関わらずに約１０リットルに設定した。この水量は、この後の洗剤溶かし工程において、洗濯兼脱水槽２を回転させることによって該洗濯兼脱水槽２の底（外壁）で外槽６の底部の水と粉末洗剤を撹拌して高洗剤濃度の洗い水を生成するのに十分な水量から決定したものである。 Step S110
When the outer lid 11 is closed, the detergent water supply solenoid valve 48a is opened and a predetermined amount of detergent water is supplied to the detergent feeder 13. In opening the detergent water supply solenoid valve 48a, first, the other water supply solenoid valves (for example, the washing water supply solenoid valve 48b and the cooling water supply solenoid valve 48c) are opened to reduce the tap water pressure at the entrance of the detergent feed solenoid valve 48a. By suppressing the inflow speed of the detergent feed water, the air in the detergent feed pipe (not shown) is prevented from being pushed out by the detergent feed water and scattering the powder detergent in the detergent thrower 13. In this example, the detergent water supply amount was set to about 10 liters regardless of the detergent amount. This amount of water is obtained by stirring the water and powder detergent at the bottom of the outer tub 6 at the bottom (outer wall) of the washing and dewatering tub 2 by rotating the washing and dewatering tub 2 in the subsequent detergent dissolving step. It is determined from the amount of water sufficient to produce a concentration of wash water.

ステップＳ１１１
洗濯兼脱水槽２と脈動翼盤４を一体的に一方向に緩速回転（約７０ｒｐｍ）させることによって該洗濯兼脱水槽２で洗剤溶かし水と粉末洗剤を撹拌して高洗剤濃度の洗い水を生成する洗剤溶かしを実行する。このときの洗い水の洗剤濃度は、約７倍である。ここで、標準濃度は、粉末洗剤量２０グラム／洗い水量３０リットルの割合である。この洗剤溶かし工程では、洗濯物は乾いている状態であることから、洗濯物の偏りによるアンバランスは少なく、洗濯兼脱水槽２は安定して回転する。なお、洗剤溶かしのための洗濯兼脱水槽２の緩速回転は、ステップＳ１１０における洗剤給水の途中から始めても良い。洗剤給水の途中から洗濯兼脱水槽２の回転を始めると、洗剤投入から洗剤溶かし撹拌までの時間が短縮され、水に触れると固まって溶けにくくなるような粉末洗剤でも溶け残りを防ぐことができる。 Step S111
The washing / dehydration tank 2 and the pulsation blade 4 are integrally rotated slowly in one direction (about 70 rpm) to agitate the detergent-dissolved water and the powder detergent in the washing / dehydration tank 2 to wash water with high detergent concentration. Run a detergent melt to produce. The detergent concentration of the washing water at this time is about 7 times. Here, the standard concentration is a ratio of 20 grams of powder detergent / 30 liters of washing water. In this detergent dissolving step, the laundry is in a dry state, so there is little unbalance due to the bias of the laundry, and the washing and dewatering tub 2 rotates stably. The slow rotation of the washing and dewatering tank 2 for dissolving the detergent may be started in the middle of the detergent water supply in step S110. When the washing / dehydrating tub 2 starts rotating in the middle of the detergent water supply, the time from the addition of the detergent to the dissolution and stirring of the detergent is shortened, and it is possible to prevent undissolved residue even with powder detergent that becomes hard to dissolve when touched with water. .

ステップＳ１１２
予約コースが設定されているかどうかを確認して処理を分岐する。 Step S112
Check if the reserved course is set and branch the process.

ステップＳ１１３
予約コースが設定されているときには、予約時刻（時間経過）まで待機する。この待機中には、所定時間毎に洗濯兼脱水槽２と脈動翼盤４を一体的に一方向に所定時間緩速回転（約７０ｒｐｍ）させることによって該洗濯兼脱水槽２で洗い水を撹拌（洗剤溶かし）を実行して洗剤成分の沈殿固化を防止する。 Step S113
When the reserved course is set, the system waits until the reserved time (time elapses). During this standby, the washing and dewatering tub 2 and the pulsation blade 4 are integrally rotated in one direction at a slow speed (about 70 rpm) for a predetermined time to agitate the washing water in the washing and dewatering tub 2. (Detergent dissolution) is performed to prevent precipitation and solidification of the detergent components.

ステップＳ１１４
予約コースが設定されていないとき、または予約時刻に達すると、水位検出センサ２８から出力する水位検出信号を参照して外槽６内の水位を確認して処理を分岐する。外槽６内の水位が洗濯物の布量に応じて設定された設定水位ｈ１，ｈ２を越えているときには異常水位とし、それ以下であれば正常水位とする。 Step S114
When the reserved course is not set or when the reserved time is reached, the water level in the outer tub 6 is confirmed with reference to the water level detection signal output from the water level detection sensor 28, and the process is branched. Is an abnormal water level when the water level in the outer tub 6 exceeds the set water level h1, h 2 set according to the laundry amount of the laundry, and a normal water level if below.

ステップＳ１１５
外槽６内の水位が設定水位ｈ１，ｈ２以下となるように排水電磁弁３１を開放して外槽６内の水を排水する。 Step S115
The drain electromagnetic valve 31 is opened to drain the water in the outer tub 6 so that the water level in the outer tub 6 is lower than the set water levels h 1 and h 2 .

ステップＳ１１６
外槽６内の水位が設定水位ｈ１，ｈ２以下になったのを検出すると、正常水位として排水電磁弁３１を閉じる。 Step S116
When it is detected that the water level in the outer tub 6 has become the set water levels h 1 and h 2 or less, the drain electromagnetic valve 31 is closed as a normal water level.

ステップＳ１１７
洗濯兼脱水槽２と脈動翼盤４を一体的に一方向に緩速回転（３５〜４０ｒｐｍ）させながら洗濯給水電磁弁４８ｂを開いて洗い水を洗濯物に降り掛けるように散布して該洗濯物を濡らすプレ給水を行う。このプレ給水量は、ステップＳ１０４で洗濯物の布量に応じて設定した水位になるまで行う。すなわち、洗濯物の布量が通常の範囲であるときには低水位ｈ１であり、極少量であるときには高水位ｈ２である。予め設定水位ｈ１，ｈ２になっているときには実質的なプレ給水がなくなる。 Step S117
The washing and dewatering tub 2 and the pulsating blade 4 are integrally rotated slowly in one direction (35 to 40 rpm), and the washing water supply electromagnetic valve 48b is opened to spray the washing water onto the laundry. Do pre-watering to wet things. This pre-water supply amount is performed until the water level set according to the amount of laundry in step S104. That is, the low water level h 1 when the amount of laundry is in the normal range, and the high water level h 2 when it is extremely small. When the preset water levels h 1 and h 2 are set in advance, there is no substantial pre-water supply.

生成りや淡色の天然素材でできた衣料品の色むらの原因となる粉末合成洗剤に含まれる蛍光増白剤は、染料の一種であり、洗濯物に触れると直ぐに吸着する。このために、高洗剤濃度の洗い水が直接かかる洗濯物の最上位部が最も蛍光増白剤を吸着し易い。従って、乾いた洗濯物に高洗剤濃度の洗い水を降り掛けると、高洗剤濃度洗い水の浸透過程で該高洗剤濃度洗い水が多く流れた部分とそうでない部分で蛍光増白剤の吸着量に差が生じ、色むらが発生する。一方、洗濯物の最上位部からある程度離れると、浸透してくる高洗剤濃度の洗い水に含まれる蛍光増白剤は、殆どなくなっており、蛍光増白剤の影響を受け難くなる。プレ給水を行って洗濯物を濡らしておくと、高洗剤濃度洗い水がより浸透し易くなって洗濯物内に均一に拡散することから、蛍光増白剤が洗濯物内に均一に吸着して色むらの発生を防止することができる。   A fluorescent whitening agent contained in a powdered synthetic detergent that causes uneven coloring of clothing or light clothing made of natural materials is a kind of dye that is immediately adsorbed when touching laundry. For this reason, the uppermost part of the laundry to which the washing water having a high detergent concentration is directly applied is most likely to adsorb the fluorescent whitening agent. Therefore, when washing water with high detergent concentration is applied to dry laundry, the amount of fluorescent whitening agent adsorbed in the part where the high detergent concentration washing water has flowed in the process of penetration of the high detergent concentration washing water and in the other part Differences occur and color unevenness occurs. On the other hand, if it is separated from the uppermost part of the laundry to some extent, the fluorescent whitening agent contained in the washing water having a high detergent concentration that permeates is almost lost, and it is difficult to be affected by the fluorescent whitening agent. If the laundry is wetted by pre-watering, the high concentration detergent water will more easily penetrate and diffuse uniformly in the laundry, so the fluorescent brightener will be adsorbed uniformly in the laundry. Generation of color unevenness can be prevented.

ステップＳ１１８
前洗いを実行する。この前洗いは、洗濯兼脱水槽２を静止させた状態で脈動翼盤４を所定の回転速度で正逆回転させる撹拌を間欠的に行ない、脈動翼盤４の正逆回転中に洗濯水循環ポンプ３２を運転することによって外槽６の底部の洗い水を散水口２６に送って洗濯物上に降り掛けるように間欠的に循環させ、脈動翼盤４と洗濯水循環ポンプ３２の停止期間中に水位検出センサ２８の検出信号を参照しながら洗剤給水電磁弁４８ａおよび洗濯給水電磁弁４８ｂを開いて水位が設定水位ｈ１，ｈ２を越えないように補給水する運転を３回繰り返すことによって洗濯物を洗い水に馴染ませて脈動翼盤４上に分散させるように行なう。 Step S118
Perform pre-washing. This pre-washing is performed by intermittently stirring the pulsating blade plate 4 forward and backward at a predetermined rotational speed while the washing / dehydrating tub 2 is stationary, and the washing water circulation pump during the forward and reverse rotation of the pulsating blade plate 4 By operating 32, the wash water at the bottom of the outer tub 6 is sent to the sprinkler 26 and circulated intermittently so as to fall on the laundry, and the water level during the stop period of the pulsating blade 4 and the wash water circulation pump 32 Laundry is performed by repeating the operation of opening the detergent water supply solenoid valve 48a and the washing water supply solenoid valve 48b and replenishing water so that the water level does not exceed the set water levels h 1 and h 2 while referring to the detection signal of the detection sensor 28. This is performed so as to disperse the water on the pulsating blade 4 with the washing water.

この前洗いにおける脈動翼盤４の回転速度は、中速回転（約１００ｒｐｍ）とし、第１回目の正逆回転は、回転時限（正回転時間／停止時間／逆回転時間）を約０．６秒間回転，約０．８秒間停止として約３０秒間繰り返し、第２回目の正逆回転は、回転時限（正回転時間／停止時間／逆回転時間）を約０．６秒間回転，約０．８秒間停止として約１分３０秒間繰り返し、第３回目の正逆回転は、回転時限（正回転時間／停止時間／逆回転時間）を約２秒間回転，約１秒間停止として約３分間繰り返すように行なう。   The rotational speed of the pulsating blade 4 in this pre-washing is medium speed rotation (about 100 rpm), and the first forward / reverse rotation has a rotation time limit (forward rotation time / stop time / reverse rotation time) of about 0.6. Rotate for 2 seconds, stop for about 0.8 seconds and repeat for about 30 seconds. The second forward / reverse rotation is the rotation time limit (forward / stop time / reverse rotation time) for about 0.6 seconds, about 0.8 Stop for 1 second and repeat for about 1 minute and 30 seconds. The 3rd forward and reverse rotation is repeated for about 3 seconds with rotation time (forward rotation time / stop time / reverse rotation time) rotating for about 2 seconds and stopping for about 1 second. Do.

第１回目の正逆回転時には、洗剤濃度が約７倍の洗い水が洗濯物に降り掛かって該洗濯物内に浸透していく。この高洗剤濃度の洗い水の作用で洗濯物から汚れが浮き上がるために高い洗浄力が得られ。補給水を繰り返すことによって洗濯物に降り掛かる洗い水の洗剤濃度が低下して行き、前洗い終了段階では、標準濃度の２倍程度となる。   During the first forward / reverse rotation, washing water having a detergent concentration of about 7 times falls on the laundry and penetrates into the laundry. High cleaning power is obtained because dirt is lifted from the laundry by the action of washing water of this high detergent concentration. By repeating the replenishing water, the detergent concentration of the washing water falling on the laundry decreases, and at the end of the pre-washing, it becomes about twice the standard concentration.

また、前洗いにおいて、第１回目の正逆回転の時間を最も短く設定しているのは、最初、洗濯物はプレ給水の水を含んでいるだけで乾いた部分も多く、洗い水を循環させて降り掛けると直ぐに洗濯物に吸収されて外槽６内の底部の洗い水が短時間に大幅に減少して該洗い水の循環ができなくなってしまうのを防止するためである。また、正逆回転の回転時限が前洗いの前半で短いのは、降り掛けた洗い水が洗濯物に効率良く浸透させることができるからであり、このようにすることによって、早い時期に洗濯物の全体に洗い水を含ませることができる。そして、洗い水が洗濯物の略全体に行き渡った第３回目の正逆回転は、長い回転時限で長い時間行うことにより、効率良く洗浄力を高めることができる。   Also, in the pre-washing, the first forward / reverse rotation time is set to be the shortest at first because the laundry contains only pre-water supply water and many dry parts, and the wash water is circulated. This is to prevent the washing water from being immediately absorbed by the laundry and drastically reducing the amount of washing water at the bottom of the outer tub 6 in a short time and making it impossible to circulate the washing water. In addition, the reason why the rotation period of forward and reverse rotation is short in the first half of the pre-washing is that the wash water that has fallen down can penetrate into the laundry efficiently. Washing water can be included in the whole. Then, the third forward / reverse rotation in which the washing water has spread over substantially the entire laundry can be performed efficiently for a long time with a long rotation time limit, thereby increasing the cleaning power efficiently.

ステップＳ１１９
本洗いを実行する。この本洗いでは、先ず、前述したと同様な方法で布量検出を行なって設定されている洗濯時間を補正して設定する。その後に、洗濯兼脱水槽２を静止させた状態で脈動翼盤４を所定の回転速度で正逆回転させながら洗濯水循環ポンプ３２を運転して外槽６の底部に溜った洗い水を散水管２６の散水口２６ａから洗濯物に降り掛ける洗い水循環を行なう約２分間の押し洗い撹拌と、洗濯水循環ポンプ３２の運転を停止して洗い水の循環を止めた状態で脈動翼盤４を正逆回転させる約１分間の布解し撹拌を繰り返し、最後に、洗濯水循環ポンプ３２の運転を停止して洗い水の循環を止めた状態で脈動翼盤４を正逆回転させる約１分間の均一化撹拌を実行して本洗い時間を終了させるようにする。この本洗い中における脈動翼盤４の正逆回転の回転速度は、押し洗い撹拌を高速回転（約１３０ｒｐｍ）、布解し撹拌を中速回転（約１００ｒｐｍ）とし、正逆回転時限（正回転時間／停止時間／逆回転時間）は、布解し撹拌における回転時限を押し洗い撹拌における回転時限よりも長くし、例えば、押し洗い撹拌における回転時限を約２．５秒、布解し撹拌における回転時限を約３．０秒、何れも停止時限を約１秒とする。 Step S119
Perform the main wash. In the main washing, first, the set washing time is corrected and set by detecting the cloth amount in the same manner as described above. Thereafter, the washing water circulation pump 32 is operated while the washing and dewatering tub 2 is stationary and the pulsation blade 4 is rotated forward and backward at a predetermined rotational speed, and the washing water accumulated at the bottom of the outer tub 6 is sprinkled with water. The washing pulsating blade 4 is moved forward and backward in a state where the washing water circulation is stopped by stopping the operation of the washing water circulation pump 32 and the washing water circulation pump 32 is stopped. Rotating and stirring for about 1 minute is repeated. Finally, the operation of the washing water circulation pump 32 is stopped and the circulation of the washing water is stopped. Agitation is performed to end the main wash time. The rotational speed of the forward / reverse rotation of the pulsating blade 4 during the main washing is such that the press-washing stirring is high-speed rotation (about 130 rpm), the disassembling stirring is medium-speed rotation (about 100 rpm), and the forward-reverse rotation time limit (forward rotation). (Time / stop time / reverse rotation time) is set to be longer than the rotation time in the press-washing and stirring, for example, the rotation time in the washing and stirring is about 2.5 seconds. The rotation time is about 3.0 seconds, and the stop time is about 1 second.

ステップＳ１２０
シャワー濯ぎを実行する。このシャワー濯ぎでは、先ず、洗い水の排水と洗濯物に含まれる洗い水の遠心脱水を実行する。洗い水の排水は、排水電磁弁３１を開放して外槽６内の洗い水を排水兼排気口６ｂから蛇腹管２９，内部配管３０，排水電磁弁３１を通して外部排水ホース３３に流し出すように行う。そして、遠心脱水は、洗濯兼脱水槽２と脈動翼盤４を一体的に一方向に高速回転させるように洗濯脱水駆動装置８を制御することによって行う。この洗い水脱水時の洗濯兼脱水槽２と脈動翼盤４の回転速度は、後述する最終脱水における回転速度（約１０００ｒｐｍ）と同様に設定し、高い脱水率（約６０％）を実現するように約２分３０秒間脱水運転する。次に、槽回転シャワー濯ぎを実行する。この槽回転シャワー濯ぎは、排水電磁弁３１を閉じた状態で、洗濯兼脱水槽２と脈動翼盤４を一体的に一方向に緩速回転（３５〜４０ｒｐｍ）させながら洗濯給水電磁弁４８ｂを開放して水道水を散水口２６ａから脈動翼盤４上の洗濯物に降り掛けるように吐出させることによって行う。このときの濯ぎ水量は、約９リットルとする。また、この槽回転シャワー濯ぎ中には、必要に応じて、洗濯水循環ポンプ３２を運転して外槽６の底部に溜った濯ぎ水を散水管２６に供給して散水口２６ａから噴出させて循環させる。 Step S120
Perform a shower rinse. In this shower rinsing, first, drainage of washing water and centrifugal dehydration of washing water contained in the laundry are executed. The drainage of the washing water is such that the drainage electromagnetic valve 31 is opened and the washing water in the outer tub 6 flows out from the drainage / exhaust port 6 b to the external drainage hose 33 through the bellows pipe 29, the internal pipe 30 and the drainage solenoid valve 31. Do. Centrifugal dehydration is performed by controlling the washing / dehydrating drive device 8 so that the washing / dehydrating tub 2 and the pulsating blade 4 are integrally rotated at a high speed in one direction. The rotational speed of the washing / dehydrating tub 2 and the pulsating blade 4 at the time of dehydrating the washing water is set in the same manner as the rotational speed (about 1000 rpm) in the final dehydration described later so as to achieve a high dehydration rate (about 60%). For about 2 minutes and 30 seconds. Next, a bath rotary shower rinsing is performed. In this rotatory shower rinsing, the washing / water supply electromagnetic valve 48b is rotated while slowly rotating (35-40 rpm) in one direction integrally with the washing / dehydrating tub 2 and the pulsating blade 4 with the drain electromagnetic valve 31 closed. The tap water is opened and discharged so as to fall on the laundry on the pulsating blade 4 from the water spout 26a. The amount of rinsing water at this time is about 9 liters. Further, during the rotatory shower rinsing, if necessary, the washing water circulation pump 32 is operated to supply the rinsing water accumulated at the bottom of the outer tub 6 to the sprinkling pipe 26 and squirt from the sprinkling port 26a. Let

ステップＳ１２１
第１回目の溜め濯ぎを実行する。この溜め濯ぎでは、先ず、排水電磁弁３１を開いて外槽６の底部に溜っている槽回転シャワー濯ぎの濯ぎ水を排水した後に洗濯兼脱水槽２と脈動翼盤４を一体的に一方向に回転させて洗濯物に含まれている濯ぎ水を遠心脱水する。この濯ぎ水脱水時の洗濯兼脱水槽２と脈動翼盤４の回転速度は、後述する最終脱水における回転速度（約１０００ｒｐｍ）と同様に設定し、高い脱水率（約６０％）を実現するように約２分３０秒間の脱水運転を行なう。 Step S121
The first reservoir rinse is performed. In this rinsing, first, the draining electromagnetic valve 31 is opened to drain the rinsing water of the rotatory shower rinsing stored in the bottom of the outer tub 6, and then the washing and dewatering tub 2 and the pulsating blade 4 are integrated in one direction. The rinse water contained in the laundry is centrifuged and dehydrated. The rotational speeds of the washing / dehydrating tub 2 and the pulsating blade 4 at the time of dewatering of the rinsing water are set in the same manner as the rotational speed (about 1000 rpm) in the final dewatering described later so as to realize a high dewatering rate (about 60%). For about 2 minutes and 30 seconds.

その後、排水電磁弁３１を閉じて洗濯兼脱水槽２と脈動翼盤４を一体的に一方向に緩速回転（３５〜４０ｒｐｍ）させながら洗濯給水電磁弁４８ｂを開放して水道水を散水口２６ａから脈動翼盤４上の洗濯物に降り掛けるように給水する。このときの濯ぎ水給時間は約３０秒間で、約８リットルの給水量である。   Thereafter, the drain electromagnetic valve 31 is closed and the washing / dehydrating tub 2 and the pulsating blade 4 are integrally rotated slowly in one direction (35 to 40 rpm) while the washing water supply electromagnetic valve 48b is opened and tap water is sprinkled. Water is supplied from 26a to the laundry on the pulsating blade 4. The rinsing water supply time at this time is about 30 seconds, and the water supply amount is about 8 liters.

次に、洗濯兼脱水槽２と脈動翼盤４の回転を停止した状態で外槽６の底部の水位が設定水位ｈ１，ｈ２を越えないように約３０秒間の濯ぎ水給水を行なう。このときの給水量は、約８リットルである。 Next, rinsing water is supplied for about 30 seconds so that the water level at the bottom of the outer tub 6 does not exceed the set water levels h 1 and h 2 while the rotation of the washing / dehydrating tub 2 and the pulsating blade 4 is stopped. The amount of water supply at this time is about 8 liters.

次に、本洗いにおける押し洗い撹拌と同様に、洗濯兼脱水槽２を静止させた状態で脈動翼盤４を所定の回転速度で正逆回転させながら洗濯水循環ポンプ３２を運転して外槽６の底部に溜った濯ぎ水を散水口２６ａから脈動翼盤４上の洗濯物に降り掛けるように循環させる濯ぎ水循環撹拌濯ぎを実行する。この濯ぎ水循環撹拌濯ぎは、約３０秒間行なう。   Next, in the same manner as the push-washing agitation in the main washing, the washing water circulation pump 32 is operated by rotating the pulsating blade 4 forward and backward at a predetermined rotational speed while the washing and dewatering tank 2 is stationary, and the outer tub 6 is operated. The rinsing water circulating and agitating and rinsing is performed in which the rinsing water accumulated in the bottom of the circulator is circulated so as to fall on the laundry on the pulsation blade 4 through the water spout 26a. This rinsing water circulation stirring rinsing is performed for about 30 seconds.

次に、脈動翼盤４の回転と洗濯水循環ポンプ３２の運転を停止した状態で外槽６の底部に溜る濯ぎ水の水位を検出しながら水位が設定水位ｈ１，ｈ２を越えないように約１５秒間の補給水を行なう。この補給水量は、約４リットルである。 Next, the water level does not exceed the set water levels h 1 and h 2 while detecting the water level of the rinsing water accumulated at the bottom of the outer tub 6 in a state where the rotation of the pulsating blade 4 and the operation of the washing water circulation pump 32 are stopped. Supply water for about 15 seconds. The amount of makeup water is about 4 liters.

次に洗濯兼脱水槽２を静止させた状態で脈動翼盤４を所定の回転速度で正逆回転させながら洗濯水循環ポンプ３２を運転して外槽６の底部に溜った濯ぎ水を散水口２６ａから脈動翼盤４上の洗濯物に降り掛けるように循環させる濯ぎ水循環撹拌濯ぎを実行する。この濯ぎ水循環撹拌濯ぎは、約１分３０秒間行なう。   Next, the washing water circulation pump 32 is operated while rotating the pulsating blade 4 forward and backward at a predetermined rotational speed while the washing / dehydrating tub 2 is stationary, and the rinsing water accumulated at the bottom of the outer tub 6 is sprinkled through the spout 26a. Rinsing water circulation stirring and rinsing to circulate the laundry on the pulsating blade 4 so as to fall on the laundry. This rinsing water circulation stirring rinsing is performed for about 1 minute and 30 seconds.

その後、電動循環ポンプ３２を停止して濯ぎ水の循環を止めた状態で脈動翼盤４の正逆回転を継続する均一化撹拌を行なう。この均一化撹拌は、約１分間行なう。   Thereafter, the electric circulation pump 32 is stopped to stop the circulation of the rinsing water, and uniform agitation for continuing forward and reverse rotation of the pulsating blade 4 is performed. This homogenization stirring is performed for about 1 minute.

ステップＳ１２２
第２回目の溜め濯ぎを実行する。この第２回目の溜め濯ぎは、第１回目の溜め濯ぎと同様に行うが、洗剤投入器１３に仕上げ剤投入機能を備えている機器では、給水時に仕上げ剤を外槽６の底部に導入する制御を付加する。 Step S122
A second reservoir rinse is performed. This second rinsing is performed in the same manner as the first rinsing, but in the case where the detergent charging device 13 has a finishing agent charging function, the finishing agent is introduced into the bottom of the outer tub 6 when water is supplied. Add control.

ステップＳ１２３
最終脱水処理を実行する。最終脱水は、排水電磁弁３１を開放としたままの状態で洗濯兼脱水槽２と脈動翼盤４を一体的にして一方向に約１０００ｒｐｍの高速回転させるように洗濯脱水駆動装置８を運転して洗濯兼脱水槽２内の洗濯物を遠心脱水するように行う。この最終脱水の運転時間は、所望の脱水率が得られる時間に設定する。 Step S123
Perform final dehydration. In the final dehydration, the washing / dehydrating drive device 8 is operated so that the washing / dehydrating tub 2 and the pulsation blade 4 are integrated and rotated at a high speed of about 1000 rpm in one direction with the drain electromagnetic valve 31 left open. Then, the laundry in the washing and dewatering tub 2 is centrifugally dehydrated. The operation time for the final dehydration is set to a time for obtaining a desired dehydration rate.

ステップＳ１２４
乾燥を実行する。この乾燥は、排水電磁弁３１を開放したままの状態として、洗濯工程と同様に、洗濯兼脱水槽２を静止させた状態で脈動翼盤４を所定の回転速度で正逆回転させながら、水冷除湿風路４０の途中に設けた電動送風機４３を運転することによって外槽６内の空気を排水兼排気口６ｂから蛇腹管３９を通して水冷除湿風路４０内に吸い出し、この水冷除湿風路４０における上昇風路４０ａ内を通過するときに該上昇風路４０ａ内に設置した水冷除湿板４１および該水冷除湿板４１の表面を流れ落ちる冷却水に触れさせて冷却除湿した後に糸屑フィルタ４２を通して糸屑を捕集し、空気加熱管４４内に設けたＰＴＣヒータ４６によって加熱した後に蛇腹管４５を介して噴気口２４に送り込んで該噴気口２４から洗濯兼脱水槽２内に吹き込むことにより行う。 Step S124
Perform drying. In this drying process, the drain electromagnetic valve 31 is left open, and the pulsation blade 4 is rotated forward and backward at a predetermined rotational speed while the washing and dewatering tub 2 is stationary, as in the washing process. By operating the electric blower 43 provided in the middle of the dehumidifying air passage 40, the air in the outer tub 6 is sucked into the water-cooled dehumidifying air passage 40 through the bellows tube 39 from the drainage / exhaust port 6b. When passing through the ascending air passage 40a, the water-cooled dehumidifying plate 41 installed in the ascending air passage 40a and the cooling water flowing down the surface of the water-cooling dehumidifying plate 41 are brought into contact with the cooling water and then dehumidified through the lint filter 42. Is collected and heated by a PTC heater 46 provided in the air heating pipe 44, then sent to the air outlet 24 through the bellows pipe 45, and blown into the washing and dewatering tub 2 from the air outlet 24. Do.

冷却水は、冷却給水電磁弁４８ｃを開放することによって水道水を冷却水流出管４１ａに供給して水冷除湿板４１の表面に流出させて該水冷除湿板４１の表面に沿って流下させ、水冷除湿板４１を流れ落ちた冷却水は、蛇腹管３９，排水兼排気口６ｂ，蛇腹管２９，内部配管３０，排水電磁弁３１を介して外部排水ホース３３に流し出して排水する。   The cooling water supplies the tap water to the cooling water outflow pipe 41a by opening the cooling water supply electromagnetic valve 48c, flows out to the surface of the water cooling / dehumidifying plate 41, and flows down along the surface of the water cooling / dehumidifying plate 41. The cooling water that has flowed down the dehumidifying plate 41 flows out to the external drainage hose 33 through the bellows tube 39, the drainage / exhaust port 6b, the bellows tube 29, the internal pipe 30, and the drainage electromagnetic valve 31, and drains it.

この乾燥制御は、水冷除湿した後の空気の湿度に感応する湿度検出センサ５０，温度検出センサ５１から出力する検出信号を監視しながら実行し、所定の湿度まで低下したときに終了する。   This drying control is executed while monitoring the detection signals output from the humidity detection sensor 50 and the temperature detection sensor 51 that are sensitive to the humidity of the air after water-cooled dehumidification, and ends when the humidity decreases to a predetermined humidity.

このように構成した電気洗濯機は、基本的には、洗い工程では、前記脈動翼盤の上面を越えない水位または僅かに越える水位を維持して前記外槽の底部に溜まるように給水して粉末洗剤を溶かすことによって高洗剤濃度の洗い水を生成し、この高洗剤濃度の洗い水を洗濯物に降り掛けるように循環させながら脈動翼盤を所定の回転速度で正逆回転させて洗濯物に上向きの力を繰り返し作用させて押し洗いし、濯ぎ工程では、洗い工程と同様に、脈動翼盤の上面を越えない水位または僅かに越える水位を維持して前記外槽の底部に溜まるように給水した濯ぎ水を洗濯物に降り掛けるように循環させながら脈動翼盤を所定の回転速度で正逆回転させて洗濯物に上向きの力を繰り返し作用させて該洗濯物に含まれる洗い水（洗剤成分）を押し出す濯ぎを行い、そして、乾燥工程では、脈動翼盤を所定の回転速度で正逆回転させて洗濯工程と同様に洗濯物を撹拌しながら前記外槽内の空気を吸い出して水冷除湿した後に加熱して前記洗濯兼脱水槽内に吹き込むように循環させて洗濯物を乾燥させるので、少ない洗濯水と駆動力で高い洗浄効率を得ることができ、また、効率良く乾燥することができる。   The electric washing machine configured as described above basically supplies water so that the water level does not exceed or slightly exceeds the upper surface of the pulsating blade plate and accumulates at the bottom of the outer tub in the washing process. Laundry detergent is used to produce washing water with a high detergent concentration, and the pulsating blade is rotated forward and backward at a predetermined rotational speed while circulating the washing water with a high detergent concentration so as to fall on the laundry. In the rinsing process, the water level that does not exceed or slightly exceeds the upper surface of the pulsating blade is maintained and accumulated at the bottom of the outer tank. Washing water (detergent) contained in the laundry by causing the pulsating blades to rotate forward and reverse at a predetermined rotational speed and repeatedly applying an upward force to the laundry while circulating the supplied rinse water so as to fall on the laundry. Rinsing out the ingredients) In the drying process, the pulsation blade is rotated forward and backward at a predetermined rotation speed, and the air in the outer tub is sucked out while stirring the laundry in the same manner as in the washing process. Since the laundry is dried by being circulated so as to be blown into the washing / dehydrating tub, high washing efficiency can be obtained with a small amount of washing water and driving force, and drying can be performed efficiently.

そして、具体的には、次のような作用効果が得られる。   Specifically, the following effects can be obtained.

洗濯および乾燥工程において脈動翼盤４を所定の回転速度で正逆回転させることによって該脈動翼盤４上の洗濯物が脈動翼盤４と共に回転しながら遠心力によって洗濯兼脱水槽２の内周壁面に押し付けられるように移動するが、洗濯兼脱水槽２の内周壁面に沿うように移動した洗濯物には該洗濯兼脱水槽２の内周壁面に位置するリフター５が作用するので、洗濯物が洗濯兼脱水槽２の内周壁面近くに偏って堅く布絡みしてしまうのを防止することができる。   By rotating the pulsating blade board 4 forward and backward at a predetermined rotational speed in the washing and drying process, the laundry on the pulsating blade board 4 rotates together with the pulsating blade board 4 by centrifugal force and the inner periphery of the washing and dewatering tub 2. Since the lifter 5 located on the inner peripheral wall surface of the washing / dehydrating tub 2 acts on the laundry moved along the inner peripheral wall surface of the washing / dehydrating tub 2, it moves so as to be pressed against the wall surface. It is possible to prevent an object from being biased and tightly entangled near the inner peripheral wall surface of the washing / dehydrating tub 2.

また、特に、洗濯工程において、洗濯物との摩擦によって脈動翼盤４の回転負荷トルクを増大させるように作用する該脈動翼盤４の貫通穴４ｂは、脈動翼盤４の***部４ａの頂上部分を除く領域に分布させるように設けているので、脈動翼盤４に作用する回転負荷トルクの増加を軽減して比較的に小型の洗濯脱水駆動電動機８ａによって回転駆動することが可能となる。従って、洗濯脱水駆動電動機８ａは、入力する交流電源電圧の変動の保障下限値（１００Ｖ−１０％＝９０Ｖ）の倍電圧整流電圧において必要な回転出力特性が得られるように構成したインバータ駆動のブラシレス電動機８ａを使用し、このブラシレス電動機を運転制御する制御装置であるコントローラ４９は、受電した交流電源電圧を倍電圧整流する倍電圧整流回路４９ｂ１と該倍電圧整流回路４９ｂ１から出力する直流電圧を前記ブラシレス電動機に供給する交流電圧に変換するインバータ回路４９ｂ２とブラシレス電動機８ａをＰＷＭ制御およびベクトル制御によって所定の回転速度で効率良く回転させるように前記インバータ回路４９ｂ２を制御する回転速度制御回路（制御処理機能）を備えた比較的に小型で簡易な負荷駆動回路４９ｂとマイクロコンピュータ４９ａによって構成することができ、ブラシレス電動機８ａの大型化も抑制することができる。 In particular, in the washing process, the through hole 4 b of the pulsating blade 4 that acts to increase the rotational load torque of the pulsating blade 4 by friction with the laundry is the top of the raised portion 4 a of the pulsating blade 4. Since it is provided so as to be distributed in the region excluding the portion, it is possible to reduce the increase of the rotational load torque acting on the pulsating blade 4 and to drive the rotation by the relatively small washing / dehydrating drive motor 8a. Accordingly, the washing / dehydrating drive motor 8a is an inverter-driven brushless device that is configured to obtain a required rotational output characteristic at a double voltage rectified voltage that is a guaranteed lower limit value (100V-10% = 90V) of fluctuation of the input AC power supply voltage. using an electric motor 8a, the controller 49 is a controlling apparatus for controlling the brushless motor, outputs the receiving the AC power supply voltage from the voltage doubler rectifier circuit 49b 1 and該倍voltage rectifier circuit 49b 1 to the voltage doubler rectified dc voltage rotational speed control circuit for controlling the inverter circuit 49b 2 so as to efficiently rotate at a predetermined rotational speed by the PWM control and vector control inverter circuit 49b 2 and brushless motors 8a to convert the alternating voltage supplied to the brushless electric motor A relatively small and simple load drive circuit with (control processing function) 49b and a microcomputer 49a, and an increase in size of the brushless electric motor 8a can be suppressed.

しかも、脈動翼盤４の***部４ａの好ましい値に設定した各種の傾斜角度およびリフターとの間の間隙や洗濯兼脱水槽２の内面との間の間隙は、洗濯物が脈動翼盤４の***部４ａと洗濯兼脱水槽２の内周壁面の間やリフター５との間に噛み込んでしまうのを防止する。   In addition, various inclination angles set to preferable values of the raised portion 4a of the pulsating blade 4 and gaps between the lifter and the inner surface of the washing and dewatering tub 2 are such that the laundry is the pulsating blade 4. Biting between the raised portion 4a and the inner peripheral wall surface of the washing and dewatering tub 2 or between the lifter 5 is prevented.

また、洗い工程の初期段階である前洗いにおいて、脈動翼盤４の正逆回転および洗い水の循環と脈動翼盤４の正逆回転休止および洗い水の循環休止を繰り返し、脈動翼盤４の正逆回転休止および洗い水の循環休止期間中に水位を監視しながら補給水するようにしているので、多量の洗い水を含んで十分に湿潤した洗濯物を脈動翼盤４上に万遍なく分散させることができ、また、洗い水が洗濯物に含まれて外槽６内の底部に溜る洗い水が不足して洗い中に脈動翼盤４上の洗濯物に降り掛ける洗い水が減少することがないように十分な洗い水量とすることができる。   Further, in the pre-washing which is the initial stage of the washing process, the forward / reverse rotation of the pulsating blade board 4 and the circulation of the washing water, the forward / reverse rotation suspension of the pulsation blade board 4 and the circulation suspension of the washing water are repeated, and the pulsation blade board 4 Since the replenishing water is monitored while monitoring the water level during the forward / reverse rotation stop and the wash water circulation stop period, the fully wet laundry containing a large amount of the wash water is uniformly distributed on the pulsation blade 4. Further, the washing water is contained in the laundry, and the washing water that accumulates at the bottom of the outer tub 6 is insufficient, so that the washing water falling on the laundry on the pulsating blade 4 during washing is reduced. A sufficient amount of washing water can be used so as not to occur.

また、洗濯兼脱水槽２を静止させた状態で脈動翼盤４を所定の回転速度で正逆回転させながら外槽６の底部に溜った洗い水を洗濯物に降り掛けるように循環させる洗いを実行しているときに、前記脈動翼盤４の正逆回転中に洗濯物に対する洗い水の降り掛けと降り掛け休止を繰り返すようにしているので、洗い水の降り掛け休止中に脈動翼盤４上の洗濯物の含水量を減少させて解きほぐすことによって該脈動翼盤４上に分散させることができ、洗浄効率を高めることができる。   In addition, the washing / dehydrating tub 2 is kept stationary and the pulsating blade 4 is rotated forward and reverse at a predetermined rotational speed while the washing water collected at the bottom of the outer tub 6 is circulated so as to fall on the laundry. When the pulsating blade 4 is running, the pulsating blade 4 is repeatedly put in and out of the washing while the pulsating blade 4 is rotating forward and reverse. It is possible to disperse it on the pulsating blade 4 by reducing the water content of the above laundry and unraveling it, thereby improving the cleaning efficiency.

しかも、洗濯物の布量が所定の範囲（適量）を下回って極端に少ないときには、脈動翼盤４を僅かに越える水位を維持して外槽６の底部に溜まるように洗濯水量（水位ｈ２）を設定しているので、湿潤した洗濯物が脈動翼盤４上に付着した状態で該脈動翼盤４と共に回転してしまうようなことがなくなり、回転する脈動翼盤４の***部４ａから洗濯物に上向きの分力を作用させることができなくなって洗浄効率や濯ぎ効率が低下してしまうようなことがなくなる。 In addition, when the amount of laundry cloth is extremely small below a predetermined range (appropriate amount), the amount of washing water (water level h 2) is maintained so that the water level slightly exceeding the pulsating blade 4 is maintained and accumulated at the bottom of the outer tub 6. ) Is set, the wet laundry does not rotate with the pulsating blade 4 in a state where it adheres to the pulsating blade 4, and the pulsating blade 4 is rotated from the raised portion 4a. An upward component force cannot be applied to the laundry, so that the washing efficiency and the rinsing efficiency are not reduced.

また、外槽６の底部に対する粉末洗剤の投入は、外枠１の上カバー９の手前側に位置する段差面９ｂに洗剤投入器１３を設置し、洗剤投入容器１３に投入された粉末洗剤を洗剤給水によって外槽６の底部に流し込むようにしているので、洗剤の投入操作を容易にすると共に外槽６の底部に円滑に導入することができる。   In addition, the powder detergent is poured into the bottom of the outer tub 6 by installing a detergent dispenser 13 on the step surface 9b located on the front side of the upper cover 9 of the outer frame 1 and removing the powder detergent charged in the detergent container 13. Since the detergent is fed into the bottom of the outer tub 6, the detergent can be easily introduced and smoothly introduced into the bottom of the outer tub 6.

また、洗剤給水電磁弁４８ａによる洗剤給水は、先ず、他の給水電磁弁（例えば、洗濯給水電磁弁４８ｂや冷却給水電磁弁４８ｃ）を開いて洗剤給水電磁弁４８ａの入り口の水道水圧を低下させた状態で行うことによって洗剤給水管系内への洗剤給水の流入速度を抑制するようにしているので、洗剤給水管系内の空気が洗剤給水によって強く押し出されて洗剤投入器１３内の粉末洗剤を吹き飛ばして飛散させるのを防止することができる。   In addition, the detergent water supply by the detergent water supply solenoid valve 48a first opens other water supply solenoid valves (for example, the washing water supply solenoid valve 48b and the cooling water supply solenoid valve 48c) to lower the tap water pressure at the entrance of the detergent water supply solenoid valve 48a. Since the flow rate of the detergent supply water into the detergent water supply pipe system is suppressed by performing the operation in the wet state, the air in the detergent water supply pipe system is strongly pushed out by the detergent water supply, and the powder detergent in the detergent dispenser 13 Can be prevented from being blown away and scattered.

また、洗剤給水および洗い開始に先立って外槽６内の水位を検出し、外槽６内の水位が過剰であるときには、所定の水位になるまで排水するようにしているので、過剰な水量によって各種の不都合が発生するのを防止することができる。   In addition, the water level in the outer tub 6 is detected prior to the supply of detergent and the start of washing, and when the water level in the outer tub 6 is excessive, the water is drained until a predetermined water level is reached. Various inconveniences can be prevented from occurring.

また、コントローラ４９は、予約コースを設定したときには、洗剤投入器１３に投入された粉末洗剤を外槽６の底部に導入して洗剤溶かし水で溶かした状態で所定時間の経過待ちを行う制御を行うので、待ち時間中に粉末洗剤が洗剤投入器１３に付着して固化してしまうようなことがない。また、外槽６の底部に導入して溶かした粉末洗剤が待ち時間中に所定時間毎に洗濯兼脱水槽を回転させて撹拌（洗剤溶かし）を実行するので洗剤成分の沈殿固化を防止することができる。   In addition, when the reservation course is set, the controller 49 performs control to wait for a predetermined time in a state where the powder detergent put into the detergent feeder 13 is introduced into the bottom of the outer tub 6 and dissolved in the detergent melted water. Therefore, the powder detergent does not adhere to the detergent feeder 13 and solidify during the waiting time. In addition, the powder detergent introduced and dissolved in the bottom of the outer tub 6 rotates the washing and dewatering tub every predetermined time during the waiting time to perform stirring (detergent dissolution), thus preventing precipitation and solidification of the detergent components. Can do.

本発明における洗濯機能は、乾燥機能をもたない洗濯および脱水専用の電気洗濯機についても同様に適用して実施することができる。   The washing function in the present invention can be similarly applied to a washing and dehydrating electric washing machine having no drying function.

本発明の実施例１の電気洗濯機を縦断した状態で示す側面の模式図である。It is a schematic diagram of the side surface shown in the state which cut through the electric washing machine of Example 1 of this invention vertically. 実施例１の電気洗濯機における脈動翼盤の斜視図である。It is a perspective view of the pulsation blade board in the electric washing machine of Example 1. FIG. 実施例１の電気洗濯機における脈動翼盤の平面図である。2 is a plan view of a pulsating blade in the electric washing machine of Embodiment 1. FIG. 図３に示した脈動翼盤のIV−IV断面図である。It is IV-IV sectional drawing of the pulsation blade board shown in FIG. 図３におけるＶ−Ｖ断面図である。It is VV sectional drawing in FIG. 実施例１の電気洗濯機におけるリフターの斜視図である。It is a perspective view of the lifter in the electric washing machine of Example 1. 図６に示したリフターの正面図である。It is a front view of the lifter shown in FIG. 実施例１の電気洗濯機における洗濯兼脱水槽内に組み込んだ脈動翼盤とリフターの対向関係を洗濯兼脱水槽を透視して示す斜視図である。It is a perspective view which sees through a washing and dehydrating tank, and shows the opposing relationship of the pulsation blade board incorporated in the washing and dehydrating tank in the electric washing machine of Example 1 and a lifter. 実施例１の電気洗濯機の上部を外蓋を閉じた状態で示す外観斜視図である。It is an external appearance perspective view which shows the upper part of the electric washing machine of Example 1 in the state which closed the outer cover. 図９に示した電気洗濯機の上部を外蓋を開いた状態で示す外観斜視図である。It is an external appearance perspective view which shows the upper part of the electric washing machine shown in FIG. 9 in the state which opened the outer cover. 図９に示した電気洗濯機における外蓋部分の縦断側面図である。It is a vertical side view of the outer lid part in the electric washing machine shown in FIG. 図１に示した電気洗濯機の制御系のブロック図である。It is a block diagram of the control system of the electric washing machine shown in FIG. 図１２に示した電気洗濯機の制御系のコントローラにおける洗濯脱水駆動電動機駆動系のブロック図である。FIG. 13 is a block diagram of a washing / dehydrating drive motor drive system in the controller of the control system of the electric washing machine shown in FIG. 12. 図１２に示した制御系のコントローラにおけるマイクロコンピュータが実行する制御処理の一部を示すフローチャートである。It is a flowchart which shows a part of control process which the microcomputer in the controller of the control system shown in FIG. 12 performs. 図１２に示した制御系のコントローラにおけるマイクロコンピュータが実行する制御処理の他の一部を示すフローチャートである。13 is a flowchart showing another part of the control process executed by the microcomputer in the controller of the control system shown in FIG. 実施例１における脈動翼盤を円周方向に展開して該脈動翼盤上の円周方向の各位置における洗濯物の上下方向の動きを示す模式図である。It is a schematic diagram which shows the up-down direction movement of the laundry in each position of the circumferential direction on the pulsation blade board by unfolding the pulsation blade board in Example 1. 実施例１における脈動翼盤を上方から見て該脈動翼盤上の洗濯物の円周方向の動きを示す模式図である。It is a schematic diagram which shows the movement of the circumferential direction of the laundry on this pulsation blade board seeing the pulsation blade board in Example 1 from upper direction.

符号の説明Explanation of symbols

１…側枠、２…洗濯兼脱水槽、４…脈動翼盤、４ａ…***部、４ｂ…貫通穴、４ｃ…外周端面、５…リフター、５ａ…膨出部、５ｂ…傾斜面、５ｃ…突条、６…外槽、８…洗濯脱水駆動装置、８ａ…洗濯脱水駆動電動機（ブラシレス電動機）、９…上カバー、９ａ…外側衣類投入口、９ｅ…後部収納部、１１…外蓋、１２…操作表示パネル部、１２ａ…指示入力ボタンスイッチ、１２ｂ…表示パネル、１３…洗剤投入器、２８…水位検出センサ、３１…排水電磁弁、３２…洗濯水循環ポンプ、３７…糸屑フィルタ、３８…水冷除湿機構、４２…糸屑フィルタ、４３…電動送風機、４６…ＰＴＣヒータ、４８…給水機構、４８ａ…洗剤給水電磁弁、４８ｂ…洗濯給水電磁弁、４８ｃ…冷却給水電磁弁、４９…コントローラ、４９ａ…マイクロコンピュータ、４９ｂ…負荷駆動回路、４９ｂ１…倍電圧整流回路、４９ｂ２…インバータ回路、５０…湿度検出センサ、５１…温度検出センサ、６０…洗濯物。 DESCRIPTION OF SYMBOLS 1 ... Side frame, 2 ... Washing and dewatering tank, 4 ... Pulsating blade 4a ... Raised part, 4b ... Through-hole, 4c ... Outer end face, 5 ... Lifter, 5a ... Swelling part, 5b ... Inclined surface, 5c ... Ridges, 6 ... outer tub, 8 ... laundry dewatering drive device, 8a ... laundry dewatering drive motor (brushless motor), 9 ... upper cover, 9a ... outer garment input port, 9e ... rear housing section, 11 ... outer lid, 12 ... Operation display panel section, 12a ... Instruction input button switch, 12b ... Display panel, 13 ... Detergent feeder, 28 ... Water level detection sensor, 31 ... Drainage solenoid valve, 32 ... Washing water circulation pump, 37 ... Thread waste filter, 38 ... Water-cooled dehumidifying mechanism, 42 ... lint filter, 43 ... electric blower, 46 ... PTC heater, 48 ... water supply mechanism, 48a ... detergent water supply solenoid valve, 48b ... washing water supply solenoid valve, 48c ... cooling water supply solenoid valve, 49 ... controller, 49a ... Microco Computer, 49b ... load driving circuit, 49b 1 ... voltage doubler rectifier circuit, 49b 2 ... inverter circuit, 50 ... humidity detection sensor, 51 ... temperature sensor, 60 ... laundry.

Claims (5)

洗濯水を溜める外槽内に回転可能に設けた洗濯兼脱水槽である内槽と、前記内槽内の底部に位置させて回転可能に設けた回転翼盤と、前記内槽および／または回転翼盤を選択的に回転駆動する駆動機構と、前記外槽内に洗濯水を給水する給水機構と、前記外槽内の洗濯水を排水する排水機構と、前記外槽内の洗濯水の水位を検出する水位検出手段と、前記外槽内の洗濯水を該内槽の上方から該内槽内に降り掛けるように循環させる洗濯水循環機構と、前記駆動機構と給水機構と排水機構と洗濯水循環機構を制御する制御装置を備えた電気洗濯機において、
前記回転翼盤は、回転することによって回転翼盤上の洗濯物に上方向の分力を繰り返し作用させるなだらかな傾斜面を提供する複数の***部を備えた脈動翼盤として構成し、
前記駆動機構は、電源電圧変動の保障下限値における倍電圧整流電圧において必要な回転出力特性が得られるように構成したインバータ駆動のブラシレス電動機を備え、
前記制御装置は、受電した交流電源電圧を倍電圧整流する整流回路と該整流回路から出力する直流電圧を前記ブラシレス電動機に供給する交流電圧に変換すると共に電圧波形をＰＷＭ制御する機能をもったインバータ回路とブラシレス電動機を所定の回転速度で回転させるように前記インバータ回路を制御する回転速度制御回路を備え、洗い水が前記脈動翼盤を越えない水位を維持して前記外槽の底部に溜まるように給水機構を制御し、
前記外槽の底部に溜った洗い水を前記脈動翼盤上の洗濯物に降り掛けるように洗濯水循環機構を運転しながら前記脈動翼盤を所定の回転速度で正逆回転させるように前記ブラシレス電動機を運転制御することによって該脈動翼盤から前記洗濯物に上向きの力を繰り返し作用させて洗いを実行することを特徴とする電気洗濯機。 An inner tub which is a washing and dewatering tub provided rotatably in an outer tub for storing washing water, a rotary vane provided rotatably at the bottom of the inner tub, the inner tub and / or the rotation A drive mechanism for selectively rotating the blades, a water supply mechanism for supplying wash water into the outer tub, a drainage mechanism for draining wash water in the outer tub, and a water level of the wash water in the outer tub A water level detecting means for detecting water, a washing water circulation mechanism for circulating the washing water in the outer tub so as to fall into the inner tub from above the inner tub, the drive mechanism, the water supply mechanism, the drainage mechanism, and the washing water circulation In an electric washing machine equipped with a control device for controlling the mechanism,
The rotary blade is configured as a pulsating blade with a plurality of ridges that provide a gentle inclined surface that repeatedly applies an upward component force to the laundry on the rotary blade by rotating,
The drive mechanism includes an inverter-driven brushless motor configured to obtain a required rotational output characteristic at a voltage doubled rectified voltage at a guaranteed lower limit of power supply voltage fluctuation,
The control device is an inverter having a function of performing PWM control on a voltage waveform while converting a DC voltage output from the rectifier circuit into a AC voltage supplied to the brushless motor and a rectifying circuit that doubles the received AC power supply voltage A rotation speed control circuit for controlling the inverter circuit so as to rotate the circuit and the brushless motor at a predetermined rotation speed so that the washing water is maintained at a level not exceeding the pulsation blade and accumulates at the bottom of the outer tank. To control the water supply mechanism,
The brushless electric motor so as to rotate the pulsating blade board forward and backward at a predetermined rotational speed while operating the washing water circulation mechanism so that the washing water collected at the bottom of the outer tub falls on the laundry on the pulsating blade board The electric washing machine is characterized in that washing is executed by repeatedly controlling an upward force from the pulsating blade board to the laundry by controlling the operation of the washing machine. 請求項１において、前記制御装置における回転速度制御回路は、ＰＷＭ制御およびベクトル制御によって前記ブラシレス電動機を回転速度制御するように前記インバータ回路を制御することを特徴とする電気洗濯機。   2. The electric washing machine according to claim 1, wherein the rotation speed control circuit in the control device controls the inverter circuit so as to control the rotation speed of the brushless motor by PWM control and vector control. 請求項１または２において、前記脈動翼盤は、前記***部の頂上部分を除く領域に分散させて設けた多数の貫通穴を備えたことを特徴とする電気洗濯機。   3. The electric washing machine according to claim 1, wherein the pulsating blade includes a plurality of through holes provided in a distributed manner in a region excluding a top portion of the raised portion. 請求項１〜３の１項において、前記内槽は、前記脈動翼盤と対向する高さに位置して内周壁面から内側に突出する膨出部の上面によって形成されて該内周壁面に沿って周方向に順次に高くなるように傾斜して伸びる複数の傾斜面と、周方向における前記傾斜面の頂上部分から前記内周壁面の内側に膨出する形態で該内周壁面に沿って縦方向に伸びる突条を備えたことを特徴とする電気洗濯機。   The inner tank is formed by an upper surface of a bulging portion that is located at a height facing the pulsating blade and protrudes inward from the inner peripheral wall surface to the inner peripheral wall surface. Along the inner peripheral wall surface in a form that swells inwardly from the top portion of the inclined surface in the circumferential direction, and a plurality of inclined surfaces that incline and extend so as to increase sequentially in the circumferential direction along the circumferential direction. An electric washing machine comprising a ridge extending in the vertical direction. 請求項１〜４の１項において、前記外槽内の空気を吸い出して水冷除湿した後に加熱して内槽に吹き込んで循環させる空気循環系を備え、脈動翼盤を回転させながら空気を循環させることによって洗濯物を乾燥させる乾燥工程を実行するように構成したことを特徴とする電気洗濯機。   5. The air circulation system according to claim 1, further comprising an air circulation system that sucks out the air in the outer tank and dehumidifies it by water cooling and blows it into the inner tank to circulate, and circulates the air while rotating the pulsating blade. An electric washing machine configured to execute a drying step of drying laundry by the above-described method.
JP2004175085A 2004-06-14 2004-06-14 Electric washing machine Expired - Fee Related JP4260690B2 (en)

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