JPH1133283A - Drum type washing and drying machine - Google Patents
Drum type washing and drying machineInfo
- Publication number
- JPH1133283A JPH1133283A JP9195901A JP19590197A JPH1133283A JP H1133283 A JPH1133283 A JP H1133283A JP 9195901 A JP9195901 A JP 9195901A JP 19590197 A JP19590197 A JP 19590197A JP H1133283 A JPH1133283 A JP H1133283A
- Authority
- JP
- Japan
- Prior art keywords
- drum
- drying
- laundry
- washing
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は洗濯から乾燥までを
1つのドラムで行うドラム式洗濯乾燥機に関するもの
で、特にドラム駆動モータにインバータ制御を行いドラ
ム内布量検知と乾燥終了検知制御を制度良く行い、乾燥
工程中の電力を少なくする制御を可能としたドラム式洗
濯乾燥機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing / drying machine in which washing and drying are performed by a single drum. The present invention relates to a drum-type washing / drying machine that can be controlled well and can reduce power during a drying process.
【0002】[0002]
【従来の技術】従来、ドラム洗濯にかかわる布量検知
(容量検知)としては、回転ドラム内に給水した実際の
給水量と、基準の給水量との間の差に基づいて、ドラム
内の洗濯物の量(容量)を判定しているものや、洗濯時
に撹拌モータへ供給されている大きな電力より小さな供
給電力で撹拌モータを回転させ、そのときの回転数から
中の布量の大,小を検知する方法や、洗濯物を収容した
ドラムを予め設定された第1の速度に達するまで漸増的
速度で回転するように駆動し、駆動されたモータが設定
された速度に到達した時間と、速度が予め設定された時
間維持され、その後モータ電源供給を遮断し、ドラムが
慣性力により回転し停止するまでの時間から、布量を検
知する方法等がある。2. Description of the Related Art Conventionally, as a cloth amount detection (capacity detection) related to drum washing, washing in a drum is performed based on a difference between an actual water supply amount supplied to a rotating drum and a reference water supply amount. The agitation motor is rotated with a smaller amount of power than the large amount of power supplied to the agitation motor at the time of washing, and the amount of medium in the laundry is determined based on the number of rotations at that time. A method for detecting the time, and driving the drum containing the laundry to rotate at an incremental speed until the drum reaches the preset first speed, and the time when the driven motor reaches the set speed, There is a method in which the speed is maintained for a preset time, the motor power supply is cut off thereafter, and the amount of cloth is detected from the time until the drum rotates and stops due to inertial force.
【0003】また、洗濯物を入れたドラムを回転駆動す
るモータ供給電圧を調節して、乾燥工程では洗濯工程の
場合より電圧を低下させる構成にしている。これによ
り、モータの回転トルクは各工程に応じたものになり、
乾燥工程に於いてはモータの無用の電力を削減する方法
等が発明されている。Further, a voltage supplied to a motor for rotating a drum containing laundry is adjusted so that the voltage in the drying process is lower than that in the washing process. As a result, the rotational torque of the motor is adapted to each process,
In the drying process, a method of reducing unnecessary electric power of a motor has been invented.
【0004】[0004]
【発明が解決しようとする課題】上記のような、従来の
技術では、布量検知はドラム内に収容された洗濯物に給
水し、実際の給水量と基準の給水量との差に基づいて布
量を判断している。しかし、この方法では使用者が洗濯
する量を見てあらかじめ、それ相応の洗剤量を事前に入
れなければならず使い勝手に欠ける。In the prior art as described above, the amount of cloth is detected by supplying water to the laundry stored in the drum and based on the difference between the actual amount of water supplied and the reference amount of water supplied. The amount of cloth is judged. However, this method is inconvenient because the user has to check the amount to be washed beforehand and add an appropriate amount of detergent in advance.
【0005】また、撹拌モータに供給する電力により布
量の大小を検知するには、駆動機構の各部の摩擦損失等
の影響は避けきれず精度の高い布量検知は行えない。そ
して、設定されたドラム回転速度までの立ち上がり時間
から、電源供給を遮断されてから慣性回転で停止するま
での時間で布量を判断する方法では、ドラム内の布張り
付き不均衡等で回転時間は大きく変わる可能性があり、
精度の高い布量検知は行えないと同時に検知時間が長い
という問題点もあった。Further, in order to detect the magnitude of the cloth amount by the electric power supplied to the stirring motor, the influence of the friction loss of each part of the drive mechanism cannot be avoided and the cloth amount cannot be detected with high accuracy. In the method of judging the amount of cloth from the rise time to the set drum rotation speed to the time from when the power supply is cut off to when the rotation is stopped by the inertial rotation, the rotation time is determined due to imbalance with cloth in the drum. Can change significantly,
There is also a problem that the cloth amount cannot be detected with high accuracy and the detection time is long.
【0006】そしてまた、乾燥工程中に洗いの供給電圧
の平均値より少なくする方法では、単純に供給電圧の切
換となり乾燥進行状態により徐々に洗濯物の自重が軽く
なることには、考慮されておらず最小の電力では制御さ
れていなかった。Further, in the method of making the supply voltage smaller than the average value of the washing supply voltage during the drying process, it is considered that the supply voltage is simply switched and the weight of the laundry is gradually reduced according to the progress of drying. And was not controlled with minimal power.
【0007】[0007]
【課題を解決するための手段】本発明のドラム式洗濯乾
燥機は上記のような課題を解決したもので、洗濯物をド
ラム内に投入し、ドラムを回転駆動するモータを低周波
低電圧から段階的に高くして行き、ドラムが起動したこ
とをモータ内部の回転速度検知手段で検知し、その時の
周波数と印加電圧値を求め、その後ドラムを臨界回転数
まで上昇させ安定回転に達してから制動を行い停止する
までの時間を求め、これら、両値に基づいて布量(洗濯
物の容量)の判断基準を求める構成にしたものであり、
また、乾燥工程中の回転数を一定に保つように、回転速
度検知手段の信号で絶えずモータ適性電圧に変化させ最
小の電力で駆動する構成にしたものである。SUMMARY OF THE INVENTION A drum-type washing and drying machine according to the present invention has solved the above-mentioned problems, and a motor for charging laundry into a drum and rotating the drum is operated at a low frequency and a low voltage. Go up step by step, detect the start of the drum by the rotation speed detecting means inside the motor, find the frequency and applied voltage value at that time, then raise the drum to the critical rotation speed and reach stable rotation The time until braking and stopping are determined, and a criterion for determining the cloth amount (the capacity of the laundry) is determined based on these two values.
In order to keep the number of rotations constant during the drying step, the motor speed is constantly changed to a motor suitable voltage by a signal of the rotation speed detecting means, and the motor is driven with the minimum power.
【0008】本発明のドラム式洗濯乾燥機は上記構成に
て、ドラムを駆動するモータの起動時の電圧は、布量を
含むドラムの慣性モーメントが大きくベルト等の摩擦損
失が大きいほど電圧は高くなり、また、臨界回転数から
制動を行い停止するまでの時間は、慣性モーメントが大
きくベルト等の摩擦損失が小さいほど長くなり、起動時
の電圧値と臨界回転数から制動を行い停止するまでの時
間とは、慣性モーメントの影響は同じであるが摩擦損失
の影響が相反しているので、両値に基づいて慣性モーメ
ントの影響の変化のみを短時間に検知することができ、
高精度の布量検知(容量検知)が行える。In the drum-type washing / drying machine of the present invention, the voltage at the start of the motor for driving the drum is higher as the moment of inertia of the drum including the cloth amount is larger and the friction loss of the belt or the like is larger. In addition, the time from the critical rotation speed to the braking and stopping is longer as the moment of inertia is larger and the friction loss of the belt or the like is smaller. With time, the effect of the moment of inertia is the same, but the effect of friction loss is contradictory, so based on both values, only the change in the effect of the moment of inertia can be detected in a short time,
High-accuracy cloth amount detection (capacity detection) can be performed.
【0009】上記のように高精度の布量検知を実施する
ことで給水前に使用者への洗剤投入量を知らせることが
可能となる。また、布容量によって洗濯あるいは乾燥工
程でのドラム回転数が設定され効率の良い洗濯、乾燥が
行える。乾燥工程では洗濯工程に比べ洗濯水や布量の含
水量が少なく、モータ供給電圧は少なくて済む。As described above, by performing the cloth amount detection with high accuracy, it becomes possible to inform the user of the amount of detergent to be supplied to the user before water supply. Further, the number of rotations of the drum in the washing or drying step is set according to the capacity of the cloth, so that efficient washing and drying can be performed. In the drying process, the water content of the washing water and the cloth amount is smaller than in the washing process, and the motor supply voltage can be reduced.
【0010】そして、モータ回転速度を絶えず確認しド
ラムが一定回転維持できる最小電圧で駆動することで、
乾燥進行と共に変化する布の自重量にも対応した適切な
電圧で無用の電力を削減できる。By constantly checking the motor rotation speed and driving the drum at the minimum voltage that can maintain a constant rotation,
Unnecessary power can be reduced with an appropriate voltage corresponding to the weight of the cloth that changes as drying proceeds.
【0011】[0011]
【発明の実施の形態】以下、本発明のドラム式洗濯乾燥
機の実施の形態を図面とともに説明する。なお、この種
のドラム式洗濯乾燥機は、洗濯から乾燥までを同一のド
ラムで行えるため洗濯・濯ぎ・脱水・乾燥までの機能を
兼ね備えた洗濯乾燥機の代表的なものとなっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a drum type washing and drying machine according to the present invention will be described below with reference to the drawings. This type of drum type washing and drying machine is a typical washing and drying machine having functions of washing, rinsing, spin-drying and drying since the washing and drying can be performed by the same drum.
【0012】まず、本発明のドラム式洗濯乾燥機の第1
の実施の形態について図1及び図2とともに説明する。
本発明のドラム式洗濯乾燥機は、図1及び図2に示すよ
うに、外箱1の内側に支持ロッド2で吊り下げられた水
槽3と、この水槽3の内側で水平軸を中心に回転するよ
うに配設されたドラム4との二重構造となっている。図
2の5は操作・表示部分であり、この裏側に制御装置6
が取り付けられている。First, the first type of the drum type washer / dryer of the present invention is described.
The embodiment will be described with reference to FIGS.
As shown in FIGS. 1 and 2, a drum-type washing / drying machine of the present invention includes a water tub 3 suspended by a support rod 2 inside an outer box 1, and rotates around a horizontal axis inside the water tub 3. It has a double structure with the drum 4 arranged so as to perform the same. Reference numeral 5 in FIG. 2 denotes an operation / display portion, and a control device 6
Is attached.
【0013】水槽3は運転中の振動を吸収するため支持
ロッド2で吊り下げられており、洗濯液や脱水液を貯え
かつ排出する機能を有している。ドラム4はその周壁全
体に洗濯時の給水、脱水時の排水および乾燥時の温風を
通過させるために多数の小孔7が設けられている。The water tank 3 is suspended by a support rod 2 to absorb vibration during operation, and has a function of storing and discharging a washing liquid and a dehydrating liquid. The drum 4 is provided with a large number of small holes 7 on the entire peripheral wall thereof for supplying water for washing, draining for dehydration, and passing warm air for drying.
【0014】水槽3の上部には乾燥用ユニット8が取り
付けられており、その乾燥用ユニット8は、内部に温風
を循環させるための送風機およびヒーターを備え、循環
用ダクト9に接続されている。本体の正面には洗濯物を
出し入れするための蓋10が設けられており、この蓋1
0は水槽3との間のパッキン11により密閉する構造と
なっている。12はドラム4を回転させるための駆動モ
ータであり、13は洗濯液等を機外に排出するための排
水ポンプである。14は水槽3と排水ポンプ13の間の
配管経路に設けられた糸屑フィルターケースである。A drying unit 8 is mounted on the upper part of the water tank 3. The drying unit 8 has a blower and a heater for circulating warm air therein, and is connected to a circulation duct 9. . A lid 10 for taking in and out laundry is provided on the front of the main body.
Reference numeral 0 denotes a structure that is sealed by a packing 11 between the water tank 3. Reference numeral 12 denotes a drive motor for rotating the drum 4, and reference numeral 13 denotes a drainage pump for discharging washing liquid and the like outside the machine. Reference numeral 14 denotes a lint filter case provided in a piping path between the water tank 3 and the drainage pump 13.
【0015】洗い工程はドラム4内に洗濯物を入れ、洗
剤ケース15に洗剤を入れ給水により洗剤を溶かし上方
から流し込んで洗濯物に含ませ、ドラム4を低速で正反
転に回転させることにより行われる。また、洗濯液の水
位は水位センサー16により検知される。The washing process is carried out by putting laundry into the drum 4, putting the detergent in the detergent case 15, dissolving the detergent by supplying water, pouring the detergent from above and including it in the laundry, and rotating the drum 4 forward and reverse at a low speed. Will be The water level of the washing liquid is detected by a water level sensor 16.
【0016】脱水工程はドラム4を高速回転させ、その
遠心力を利用して洗濯物をドラム4の周壁内面に押し付
けることで水はドラム4の小孔7から飛ばされ、水槽3
の内面を伝わってその下部に導かれ、排水ポンプ13に
より機外に排出される。乾燥工程は乾燥ユニット8によ
り加熱され高温となった空気をドラム4内に吹き込みな
がら、ドラム4を低速回転させて実行される。In the dewatering step, the drum 4 is rotated at a high speed, and the laundry is pressed against the inner surface of the peripheral wall of the drum 4 by using the centrifugal force, whereby water is blown out from the small holes 7 of the drum 4 and the water tub 3
Is guided to the lower part along the inner surface of the device, and is discharged out of the machine by the drainage pump 13. The drying process is performed by rotating the drum 4 at a low speed while blowing the air heated by the drying unit 8 and having a high temperature into the drum 4.
【0017】操作スイッチ部18は、洗濯機本体17の
前面中央に設けた蓋装置10の上部に設け、使用者が選
択する複数の運転コーススイッチ183,電源スイッチ
181,スタートスイッチ182,乾燥スイッチ18
4,洗濯スイッチ185,予約スイッチ186、温水ス
イッチ187とを備えている。The operation switch section 18 is provided above the lid device 10 provided at the center of the front of the washing machine main body 17, and includes a plurality of operation course switches 183, a power switch 181, a start switch 182, and a drying switch 18 selected by a user.
4, a washing switch 185, a reservation switch 186, and a hot water switch 187.
【0018】制御装置6は、操作スイッチ部18により
入力設定された内容により駆動モータ12、排水ポンプ
13等の被制御部品を制御し、一連の洗濯から乾燥工程
を制御している。そして、制御装置6は、図8に示すよ
うに構成するものであり、図6において、8は乾燥ユニ
ット、12は駆動モータ、121は回転検知部、13は
排水ポンプ、131は循環ポンプ、132はドアロッ
ク、133は給水弁、18は操作スイッチ部、611は
電源プラグ、612は電源スイッチ、613は電源部、
614は報知部(表示部)、615は入力部、617は
マイコン(マイクロコンピュータ、制御部)、618は
駆動回路(ドライブ回路、出力部)、619はインバー
タ回路である。The control device 6 controls the components to be controlled such as the drive motor 12 and the drain pump 13 according to the contents set by the operation switch section 18, and controls the drying process from a series of washing. The control device 6 is configured as shown in FIG. 8. In FIG. 6, 8 is a drying unit, 12 is a drive motor, 121 is a rotation detection unit, 13 is a drainage pump, 131 is a circulation pump, 132 Is a door lock, 133 is a water supply valve, 18 is an operation switch unit, 611 is a power plug, 612 is a power switch, 613 is a power supply unit,
614 is a notification unit (display unit), 615 is an input unit, 617 is a microcomputer (microcomputer, control unit), 618 is a drive circuit (drive circuit, output unit), and 619 is an inverter circuit.
【0019】蓋装置10は、運転中にロックして開かな
いようになり安全のため洗濯開始から終了までの間は、
蓋装置10が動作し、蓋を開けることはできない。終了
後は把手部(図示せず)を操作することにより、蓋装置
10を開けることができる構造となっている。また、把
手部は蓋本体内に一体構造となっている。そして、蓋ロ
ック装置(図示せず)は、洗濯機本体17内に設けられ
ており蓋本体に設けられた嵌合爪を洗濯機本体17内の
ロック装置で固定される。The lid device 10 is locked during operation and does not open. For safety, from the start to the end of washing,
The lid device 10 operates and the lid cannot be opened. After completion, the cover device 10 can be opened by operating a handle (not shown). In addition, the handle portion has an integral structure in the lid body. The lid lock device (not shown) is provided in the washing machine main body 17, and a fitting claw provided on the lid main body is fixed by the lock device in the washing machine main body 17.
【0020】上記のように構成してなるドラム式洗濯乾
燥機に於いて、本発明ではモータ12に内蔵された回転
速度検知器121を用い、ドラム4内に乾燥状態の洗濯
物を投入しモータ12からベルト20を介してドラム4
を回転させる起動電圧と周波数を検知し、臨界回転数か
らの制動(ブレーキング)で停止する時間を上記速度検
知手段で求め布量検知を行う。In the drum type washing / drying machine constructed as described above, in the present invention, the laundry in the dry state is put into the drum 4 by using the rotation speed detector 121 built in the motor 12 and the motor is used. 12 to the drum 4 via the belt 20
The starting voltage and frequency for rotating the motor are detected, and the time for stopping by the braking (braking) from the critical rotation speed is obtained by the speed detecting means to detect the cloth amount.
【0021】以下、これを用いて動作原理を説明する。
モータ12内に設けられた回転速度検知器121は、一
般的にモータ回転軸に磁石を取り付け、その周りにコイ
ルを巻いた発電タイプのものやホール素子を用いたもの
が多く使用されている。Hereinafter, the operation principle will be described with reference to FIG.
As the rotation speed detector 121 provided in the motor 12, a power generation type in which a magnet is attached to a motor rotation shaft and a coil is wound around the rotation speed detector 121 or a device using a Hall element is generally used in many cases.
【0022】また、発電タイプのものでは、コイルに極
数がありモータが一回転すると極数分の信号が速度検知
器より出力され、その信号を制御装置6でカウントし、
モータ回転速度に変換する。この実施の形態の説明では
発電タイプを例にする。In the case of the power generation type, when the motor has one rotation, a signal corresponding to the number of poles is output from the speed detector, and the signal is counted by the control device 6.
Convert to motor rotation speed. In the description of this embodiment, a power generation type is taken as an example.
【0023】まず、最初にドラム4内に洗濯物を投入
後、モータ12を図3に示すV/fパターン(出力周波
数に対する出力電圧の比率)に従って徐々に電圧,周波
数をモータに供給し、その都度回転速度検知器121に
よりモータ回転の有無を確認する。First, after the laundry is put into the drum 4, the motor 12 gradually supplies the voltage and frequency to the motor in accordance with the V / f pattern (ratio of output voltage to output frequency) shown in FIG. The presence or absence of motor rotation is checked by the rotation speed detector 121 each time.
【0024】このとき未だモータ12が起動しない場
合、上記パターンに従い電圧、周波数を高くし回転速度
検知器121からの信号を検知するまで繰り返す。こう
して回転速度検知器121により検知されると、そのと
きの電圧、周波数が制御装置内のマイコン617内に記
憶される。続いて、ドラム回転を臨界回転数以上で回転
させ一定回転数となった時点で制動を行う。At this time, if the motor 12 has not started yet, the voltage and frequency are increased according to the above-described pattern, and the process is repeated until a signal from the rotation speed detector 121 is detected. When the rotation speed is detected by the rotation speed detector 121, the voltage and frequency at that time are stored in the microcomputer 617 in the control device. Subsequently, the drum is rotated at a rotational speed equal to or higher than the critical rotational speed, and braking is performed when the rotational speed reaches a certain rotational speed.
【0025】インバータの制動方式には、回転エネルギ
ーをモータの発電作用を利用して電気エネルギーに変
え、これを抵抗器等で熱エネルギーとして消費させる抵
抗器制動方式と、モータ巻線に直流電流を流しロータで
電力を消費する直流制動方式と、回転エネルギーをモー
タの発電作用を利用して電気エネルギーに変えこれを電
源回路へ返却する回生制動方式がある。[0025] The braking method of the inverter includes a resistor braking method in which rotational energy is converted into electric energy by using the power generation action of a motor, and this is consumed as heat energy by a resistor or the like. There are a DC braking system in which electric power is consumed by a sink rotor, and a regenerative braking system in which rotational energy is converted into electric energy by using the power generation action of a motor and returned to a power supply circuit.
【0026】上記制動方式のいずれかを利用することで
慣性力で回るドラムを短時間に停止することが可能とな
る。こうして制動開始からモータ12が停止するまでの
時間を回転速度検知器121により確認し制御装置6内
マイコンに記憶する。マイコン内ではあらかじめ実験等
で求めた定数により両値の適合するパターンで認識を行
い布容量を算出する。The use of any of the above-mentioned braking methods makes it possible to stop the drum that rotates by inertia in a short time. Thus, the time from the start of braking to the stop of the motor 12 is confirmed by the rotation speed detector 121 and stored in the microcomputer in the control device 6. In the microcomputer, the cloth capacity is calculated by recognizing in accordance with a pattern matching both values by a constant obtained in advance through experiments or the like.
【0027】上記容量を検知後、制御装置6は図7に示
す表示・操作部18の洗剤量表示部189に示すように
洗剤量を表示し、使用者に洗剤容量を知らせ、それに従
い洗剤を投入し洗濯が開始される。After detecting the capacity, the control device 6 displays the detergent amount as shown in the detergent amount display section 189 of the display / operation section 18 shown in FIG. 7, informs the user of the detergent capacity, and uses the detergent accordingly. Then, washing is started.
【0028】次に、本発明のドラム式洗濯乾燥機の第2
の実施の形態を説明する。布容量検知後、制御装置6で
は容量に合った給水量及び洗濯時間を設定し、あらかじ
め使用者が設定した選択コースを実行する。ドラム式洗
濯乾燥機の洗浄方法は、回転するドラム4内に設けられ
た複数のバッフル19に、洗濯物が持ち上げられ落ちる
動作(以下、タンブリングという)を繰り返す、たたき
洗い方式である。Next, the second type of the drum type washing and drying machine of the present invention will be described.
An embodiment will be described. After detecting the cloth capacity, the control device 6 sets the water supply amount and the washing time according to the capacity, and executes the selected course set in advance by the user. The washing method of the drum-type washing / drying machine is a knock-washing method in which the operation of lifting and lowering laundry (hereinafter, referred to as tumbling) on a plurality of baffles 19 provided in the rotating drum 4 is repeated.
【0029】洗濯物の汚れを取るにはタンブリング回数
が多いほど良くなるが、回数を多くすると逆に洗濯時間
は長くなる。また、逆に洗濯時間を短くすると汚れが落
ちないという問題があるが、布容量の検知を行い容量に
合ったドラム回転数を設定することで上記問題点を軽減
できる。To remove dirt from the laundry, the better the number of times of tumbling, the better. However, if the number of times of tumbling is increased, the washing time becomes longer. Conversely, if the washing time is shortened, there is a problem that dirt does not come off. However, the above problem can be reduced by detecting the capacity of the cloth and setting the number of rotations of the drum according to the capacity.
【0030】すなわち、ドラム回転数と遠心力には図5
に示すような関係があり小容量例えば1kgの時はドラ
ム内に洗濯物が張り付く回転数A点と低く、逆に大容量
例えば5kgと多い場合E点と高くなり、容量と回転数
は比例している。このことから、布容量に適切な回転を
選択することでより多くのタンブリングが得られ洗浄力
と洗濯時間の短縮が行える。FIG. 5 shows the relationship between the number of rotations of the drum and the centrifugal force.
When the capacity is small, for example, 1 kg, the rotation speed A at which the laundry sticks in the drum is low at point A, and when the capacity is large, for example, 5 kg, the rotation speed is high at point E, and the capacity and the rotation speed are proportional. ing. From this, by selecting an appropriate rotation for the cloth volume, more tumbling can be obtained, and the washing power and the washing time can be reduced.
【0031】次に、本発明のドラム式洗濯乾燥機の第3
の実施の形態を説明する。図10は乾燥工程中のモータ
に印加される最小電圧の制御フローチャートであり、図
4はモータに供給される電圧の出力波形を発生する過程
を示す説明図で、三相交流の一相における0°〜180
°の範囲について図示している。Next, the third washing and drying machine of the present invention will be described.
An embodiment will be described. FIG. 10 is a control flowchart of the minimum voltage applied to the motor during the drying process. FIG. 4 is an explanatory diagram showing a process of generating an output waveform of the voltage supplied to the motor. ° ~ 180
The range of ° is illustrated.
【0032】周波数及び振幅は一定の三角波信号Sとそ
れに同期した三相正弦波信号P1またはPnと比較して
短形波パルスVP1またはVPnを発生させ、それをモ
ータに印加する。ここでモータに印加する電圧は三相正
弦波信号の振幅値Aの大きさを変えることで、任意の電
圧設定が行われる。制御装置6は乾燥工程中の電力を低
くするため例えば、電圧VP1がモータに印加されたと
きの回転速度検知器121を確認する。A triangular wave signal S having a constant frequency and amplitude is compared with a three-phase sine wave signal P1 or Pn synchronized with the triangular wave signal S to generate a short-wave pulse VP1 or VPn, which is applied to the motor. Here, the voltage applied to the motor is set to an arbitrary voltage by changing the magnitude of the amplitude value A of the three-phase sine wave signal. The control device 6 checks the rotation speed detector 121 when the voltage VP1 is applied to the motor, for example, to reduce the power during the drying process.
【0033】設定の回転速度と相違が無い場合は印加電
圧を(P1)−1する。すなわちP1より低い三相正弦
波波形でモータに印加される短形波パルスを小さくし、
モータの回転数が設定より低くなるまで(P1)−1を
繰り返し最小電圧値を探していく。また、逆にモータ回
転数が低くなった場合は(P1)+1を行い回転の回復
を行い安定した回転を維持する制御を行うものである。
上記制御を行うことで常に最小の電圧駆動が可能となり
無駄な電力を削減できる。If there is no difference from the set rotation speed, the applied voltage is reduced by (P1) -1. That is, the short-wave pulse applied to the motor with a three-phase sine wave waveform lower than P1 is reduced,
(P1) -1 is repeated until the rotation speed of the motor becomes lower than the set value, and the minimum voltage value is searched. On the other hand, when the motor rotation speed becomes low, (P1) +1 is performed to perform the control to recover the rotation and maintain the stable rotation.
By performing the above control, the minimum voltage drive can be always performed, and wasteful power can be reduced.
【0034】次に、本発明のドラム式洗濯乾燥機の第4
の実施の形態を説明する。乾燥の終了検知は初期に行っ
た布量検知の基準値を基に乾燥終了を行うもので、図9
のフローチャートをもとに説明する。Next, the fourth embodiment of the drum type washing and drying machine of the present invention will be described.
An embodiment will be described. The drying end detection is to end the drying based on the reference value of the cloth amount detection performed at the beginning.
This will be described based on the flowchart of FIG.
【0035】まず、終了検知を行う前に初期の基準値と
別な事前判断値を求める。布量検知段階で起動電圧(V
1)を求めた後に乾燥回転数例えば55rpmで回転が
維持できる最低電圧(V2)を求め、これが事前判断値
(M2)となる。この事前判断値(M2)を基に第3の
実施の形態に記載の制御を行い事前判断値(M2)と現
時点の最低電圧と、比較し両値が等しいかあるいは後者
の値が小さい場合に、最終判断となる布量検知を再び実
行する。これにより初期に得られた値と乾燥後に得られ
た値を比較し最終の乾燥終了の判断を行うものである。First, before end detection is performed, a pre-determined value different from the initial reference value is obtained. The start-up voltage (V
After obtaining 1), the minimum voltage (V2) at which the rotation can be maintained at the drying rotation speed, for example, 55 rpm, is obtained, and this is the pre-determined value (M2). The control described in the third embodiment is performed based on the prior judgment value (M2), and the prior judgment value (M2) is compared with the current minimum voltage, and when both values are equal or the latter value is small. Then, the cloth amount detection which is the final judgment is executed again. Thus, the value obtained at the beginning and the value obtained after the drying are compared to determine the final end of the drying.
【0036】次に、本発明のドラム式洗濯乾燥機の第5
の実施の形態を説明する。布容量検知後、制御装置では
容量に合った給水量及び洗濯時間を設定しあらかじめ使
用者が設定した選択コースを実行する。ドラム洗濯機の
乾燥方法は、図1に示す乾燥ユニット8からの温風を水
槽内に入れドラム4内部の洗濯物へと導かれる。Next, the fifth washing and drying machine of the present invention will be described.
An embodiment will be described. After detecting the cloth capacity, the control device sets the water supply amount and the washing time according to the capacity, and executes the selected course set by the user in advance. In the drying method of the drum washing machine, warm air from the drying unit 8 shown in FIG. 1 is put into a water tank and guided to the laundry inside the drum 4.
【0037】乾燥を促進するには温風と洗濯物との接触
や洗濯物の入れ替わりが多いほど良くなる傾向にある。
このことから回転するドラム内に設けられた複数のバッ
フルによってより多く撹拌されタンブリングされること
が乾燥促進に寄与し、布容量に合ったドラム回転数を設
定することで上記問題点を軽減できる。In order to promote the drying, the better the contact between the warm air and the laundry and the more the laundry is replaced, the better.
For this reason, more stirring and tumbling by the plurality of baffles provided in the rotating drum contribute to the promotion of drying, and the above problem can be reduced by setting the number of rotations of the drum to match the cloth capacity.
【0038】すなわち、ドラム回転数と遠心力には図5
のような関係があり小容量例えば1kgの時はドラム内
に洗濯物が張り付く回転数A点と低く、逆に大容量例え
ば5kgと多い場合E点と高くなり、容量と回転数は比
例関係にあり布容量に適切な回転を選択することで、よ
り多くのタンブリングが得られ乾燥促進と時間の短縮が
行える。That is, the rotational speed of the drum and the centrifugal force are shown in FIG.
When the capacity is small, for example, 1 kg, the number of rotations A at which the laundry is stuck in the drum is low at point A, and when the capacity is large, for example, 5 kg, point E is high, and the capacity and the number of rotations are proportional. By selecting an appropriate rotation for the cloth capacity, more tumbling can be obtained, and drying can be accelerated and time can be reduced.
【0039】次に、本発明のドラム式洗濯乾燥機の第6
の実施の形態を説明する。布容量検知後、制御装置6で
は容量に合った給水量及び洗濯時間を設定しあらかじめ
使用者が設定した選択コースを実行する。ドラム洗濯機
の乾燥方法は、第1図に示す乾燥ユニット8からの温風
を水槽内に入れドラム4内部の洗濯物へと導かれる。Next, the sixth embodiment of the drum type washer / dryer of the present invention will be described.
An embodiment will be described. After detecting the cloth capacity, the control device 6 sets the water supply amount and the washing time according to the capacity, and executes the selected course set by the user in advance. In the drying method of the drum washing machine, warm air from the drying unit 8 shown in FIG. 1 is put into a water tank and guided to the laundry inside the drum 4.
【0040】乾燥を促進するには温風と洗濯物との接触
や洗濯物の入れ替わりが多いほど良い。しかしながら、
乾燥初期の洗濯物には多くの水が含まれておりこの状態
で通常の回転を行うとドラム内壁に洗濯物が落とされ布
痛みの原因になる。上記問題を防止するため乾燥初期に
は乾燥回転数を通常回転数以下から行い、乾燥進行とと
もに回転数を定常回転まで上げていく、このような制御
をすることで痛みを防止し皺の少ない乾燥が行える。In order to promote the drying, it is better that the contact between the warm air and the laundry or the replacement of the laundry is greater. However,
A lot of water is contained in the laundry at the beginning of drying, and when the laundry is rotated normally in this state, the laundry is dropped on the inner wall of the drum and causes a cloth pain. In order to prevent the above-mentioned problems, the drying speed is set to be lower than the normal speed in the initial stage of drying, and the rotating speed is increased to the steady speed as the drying progresses. Can be performed.
【0041】乾燥進行状況判断は、事前に行った布量検
知段階で起動電圧を求めた後に乾燥回転数例えば55r
pmで回転が維持できる最低電圧を求める。この値が洗
濯物の乾燥状態でこの電圧値に近付くにつれて乾燥進行
したと判断され回転数を上げる。The progress of the drying is determined by determining the starting voltage in the cloth amount detection stage performed in advance, and then determining the drying rotation speed, for example, 55 r.
The minimum voltage at which rotation can be maintained at pm is determined. As this value approaches this voltage value in the dry state of the laundry, it is determined that the drying has progressed, and the rotation speed is increased.
【0042】次に図6に従い動作を説明する。洗濯を終
了し、脱水工程で洗濯物に含まれる水分を除去し乾燥工
程に移る。乾燥工程では、スタート地点は定常より低い
回転からスタートする。乾燥が徐々に進行するとモータ
に印加する電圧は乾燥進行に従い低くなる。例えば乾燥
スタートの電圧Vsから現在の電圧Vn間で変化した場
合、回転数はA→B間で上昇する。このように印加電圧
の電圧値によって回転速度を可変し、乾燥進行状態と密
接連携する事で布痛みをなくし、短時間に乾燥を効率よ
く実施できる。Next, the operation will be described with reference to FIG. After the washing is completed, the moisture contained in the laundry is removed in the dehydration step, and the process proceeds to the drying step. In the drying process, the starting point starts from a lower than normal rotation. When the drying progresses gradually, the voltage applied to the motor decreases as the drying progresses. For example, when the voltage changes from the drying start voltage Vs to the current voltage Vn, the rotation speed increases from A to B. As described above, the rotation speed is varied according to the voltage value of the applied voltage, and by closely coordinating with the drying progress state, the cloth is not damaged, and drying can be efficiently performed in a short time.
【0043】[0043]
【発明の効果】本発明のドラム式洗濯乾燥機は上記のよ
うな構成であるから、請求項1記載の発明は、ドラムを
回転駆動するモータの起動時の電圧周波数の値と臨界回
転数以上からの制動(ブレーキ)による停止時間との両
値からドラム内の布量判定を求めるのでベルト等の摩擦
損失の影響を少なくできて布検知精度が上がる。また、
停止時間を少なくするため制動(ブレーキ)制御を使用
することで短時間に布量判定が可能となる。The drum-type washer / dryer of the present invention has the above-described configuration. Therefore, the invention according to claim 1 is characterized in that the voltage of the motor for rotating and driving the drum is higher than the value of the voltage frequency and the critical rotation speed. Since the determination of the amount of cloth in the drum is obtained from both values of the stop time due to the braking (brake) from the motor, the influence of the friction loss of the belt and the like can be reduced, and the cloth detection accuracy increases. Also,
By using the braking (brake) control to reduce the stop time, the cloth amount can be determined in a short time.
【0044】そして、請求項2記載の発明は、洗濯物を
投入し給水前に布量が判断され洗剤投入量が表示され使
用者に知らされるので使い勝手が向上され、しかも洗濯
の失敗等や洗剤の無駄使い等が防止できる。According to the second aspect of the present invention, since the amount of cloth is determined before the water is supplied and the amount of detergent is displayed and the user is notified, the usability is improved. It is possible to prevent the detergent from being wasted.
【0045】そしてまた、請求項3記載の発明は、検知
された布量で洗濯工程中の回転数をかえることで、洗濯
物が少ない場合にはドラムに張り付く回転数は低くなり
逆に多い場合は回転数が高くなる特性があり、この特性
に合わせた回転数で最大限のタンブリング回転数を得る
ことが可能となり洗浄、すすぎ効果が最大限に発揮でき
る。Further, according to the present invention, the number of rotations during the washing process is changed according to the detected amount of cloth, so that when the amount of laundry is small, the number of rotations stuck to the drum is low, and when the amount of laundry is large, the number of rotations is large. Has a characteristic that the number of rotations is increased, and it is possible to obtain the maximum tumbling number of rotations with the number of rotations in accordance with this characteristic, so that the cleaning and rinsing effects can be maximized.
【0046】さらに、請求項4記載の発明は、乾燥工程
中にモータ回転数が一定となる最小制御電圧で乾燥工程
中の回転制御を行うことで乾燥初期の回転トルクは乾燥
進行と共に徐々に少なくなって行くそれと合わして最小
限の電圧でドラムが一定回転となる電圧に絶えず制御し
ているので不必要された電力をヒータに明け渡すことで
乾燥時間が短縮される。Further, according to the present invention, the rotation torque during the drying process is controlled by the minimum control voltage at which the motor rotation speed becomes constant during the drying process, so that the rotation torque in the initial stage of the drying gradually decreases as the drying progresses. The drying time is shortened by transferring unnecessary power to the heater since the drum is constantly controlled to a voltage at which the drum rotates at a constant speed with a minimum voltage.
【0047】さらにまた、請求項5記載の発明は、布量
検知で検知された値によって乾燥工程時の、布量検知で
の基準データ(起動電圧,駆動周波数)を基に乾燥終了
検知を行うことで精度の良い終了検知が行える。Further, in the invention according to claim 5, the end of drying is detected based on the reference data (start-up voltage, drive frequency) in the detection of the amount of the cloth in the drying step based on the value detected in the detection of the amount of the cloth. As a result, accurate end detection can be performed.
【0048】また、請求項6記載の発明は、検知された
布量で乾燥工程中の回転数をかえることで、洗濯物が少
ない場合にはドラムに張り付く回転数は低くなり逆に多
い場合は回転数が高くなる特性があり、この特性に合わ
せた回転数で行うことで最大のタンブリング回数が得ら
れ温風と洗濯物との接触回数が増え乾燥効果が最大限に
発揮できる。Further, according to the present invention, the number of rotations during the drying process is changed by the detected amount of cloth, so that the number of rotations stuck to the drum is reduced when the amount of laundry is small, and conversely when the amount of laundry is large. There is a characteristic that the number of rotations is increased. By performing the rotation at a number of rotations that matches this characteristic, the maximum number of times of tumbling can be obtained, the number of times of contact between the warm air and the laundry increases, and the drying effect can be maximized.
【0049】そして、請求項7記載の発明は、布の乾燥
の進行状態によってドラム回転数を変えることで初期は
回転を低くしタンブリング回数を減らし布痛みを抑え乾
燥が進むと回転を高めにして皺を防止すると同時にむら
なく温風が行き渡り効率の良い乾燥ができる。According to a seventh aspect of the present invention, the number of rotations of the drum is changed in accordance with the progress of the drying of the cloth, thereby lowering the number of rotations at the initial stage, reducing the number of tumbling operations, suppressing the pain of the cloth, and increasing the number of rotations as the drying proceeds. At the same time as preventing wrinkles, the hot air spreads evenly and drying can be performed efficiently.
【図1】本発明のドラム式洗濯乾燥機の実施の形態を示
す要部正面図である。FIG. 1 is a main part front view showing an embodiment of a drum type washing / drying machine of the present invention.
【図2】本発明のドラム式洗濯乾燥機の実施の形態を示
す要部側面図である。FIG. 2 is a main part side view showing the embodiment of the drum type washing / drying machine of the present invention.
【図3】本発明のドラム式洗濯乾燥機の実施の形態を示
すインバータモータのV/fの特性図である。FIG. 3 is a characteristic diagram of V / f of an inverter motor showing an embodiment of a drum type washer / dryer of the present invention.
【図4】本発明のドラム式洗濯乾燥機の実施の形態を示
すインバータモータの印加電圧発生の原理図である。FIG. 4 is a principle diagram of generation of an applied voltage of an inverter motor, showing an embodiment of a drum type washing and drying machine of the present invention.
【図5】本発明のドラム式洗濯乾燥機の実施の形態を示
す洗濯物が張り付く回転数の説明図である。FIG. 5 is an explanatory diagram of the number of revolutions on which laundry sticks, showing the embodiment of the drum type washing and drying machine of the present invention.
【図6】本発明のドラム式洗濯乾燥機の実施の形態を示
す乾燥工程での印加電圧と回転速度の制御状態の説明図
である。FIG. 6 is an explanatory diagram of a control state of an applied voltage and a rotation speed in a drying step showing the embodiment of the drum type washing and drying machine of the present invention.
【図7】本発明のドラム式洗濯乾燥機の実施の形態を示
す洗剤量表示例の説明図である。FIG. 7 is an explanatory diagram of a detergent amount display example showing the embodiment of the drum type washing and drying machine of the present invention.
【図8】本発明のドラム式洗濯乾燥機の実施の形態を示
す制御装置のブロック図である。FIG. 8 is a block diagram of a control device showing an embodiment of a drum type washer / dryer of the present invention.
【図9】本発明のドラム式洗濯乾燥機の実施の形態を示
す乾燥工程での終了検知判定のフローチャートである。FIG. 9 is a flowchart of end detection determination in a drying step showing the embodiment of the drum-type washing / drying machine of the present invention.
【図10】本発明のドラム式洗濯乾燥機の実施の形態を
示す乾燥工程での最小電力制御のフローチャートであ
る。FIG. 10 is a flowchart of a minimum power control in a drying step showing the embodiment of the drum type washing / drying machine of the present invention.
【符号の説明】 1 外箱 3 水槽 4 ドラム 6 制御装置 7 小孔 8 乾燥用ユニット 12 駆動モータ 121 回転速度検知器[Description of Signs] 1 Outer box 3 Water tank 4 Drum 6 Control device 7 Small hole 8 Drying unit 12 Drive motor 121 Rotation speed detector
Claims (7)
平軸を中心に回転可能に支持された多数の小孔を有する
ドラムと、ドラム内の洗濯物を乾燥させるヒータとを備
え、洗濯から乾燥までを同一のドラムで行うドラム式洗
濯乾燥機に於いて、モータを駆動制御する制御手段と、
モータの回転速度を検知する回転速度検知手段と、洗濯
物が投入されているドラムをモータが起動するのに要し
た周波数と電圧を上記回転速度検知手段で検知する第1
検知手段と、ドラム回転数を洗濯物が張り付く臨界回転
数以上まで上昇させ、回転数が安定したのちにモータに
制動を行った時点から、ドラムが停止するまでの時間を
検知する第2検知手段とを具備し、求めた両値を基準に
洗濯物の容量検知を行うことを特徴とするドラム式洗濯
乾燥機。1. A water tank disposed in an outer box, a drum having a number of small holes rotatably supported about a horizontal axis in the water tank, and a heater for drying laundry in the drum. Control means for controlling the drive of a motor in a drum-type washing / drying machine provided with the same drum from washing to drying;
A rotation speed detecting means for detecting a rotation speed of the motor, and a first speed detection means for detecting a frequency and a voltage required for the motor to start the drum in which the laundry is loaded by the motor.
Detection means and second detection means for detecting the time from when the motor is braked after the rotation speed has been stabilized to increase the drum rotation speed to the critical rotation speed at which the laundry is stuck and the drum stops, A drum-type washing and drying machine comprising: detecting a capacity of laundry based on both values obtained;
濯容量に合った洗剤投入量の表示をする表示手段を具備
してなることを特徴とする請求項1記載のドラム式洗濯
乾燥機。2. The drum-type washing / drying machine according to claim 1, further comprising display means for displaying a detergent input amount corresponding to the washing capacity after detecting the capacity of the laundry in the drum.
濯工程時のドラム回転数を決定することを特徴とする請
求項1記載のドラム式洗濯乾燥機。3. The drum type washing and drying machine according to claim 1, wherein the number of rotations of the drum during the washing step is determined according to the detected capacity of the laundry.
する手段を備え、乾燥工程中にモータ回転数が一定とな
る最小電圧で回転制御を行うことを特徴とする請求項1
記載のドラム式洗濯乾燥機。4. A washing machine according to claim 1, further comprising means for recognizing a washing step and a drying step of the laundry, wherein rotation control is performed at a minimum voltage at which a motor rotation speed becomes constant during the drying step.
The drum type washing / drying machine according to the above.
量値と、最初に検知した基準値を基に乾燥終了検知を行
うことを特徴とする請求項1記載のドラム式洗濯乾燥
機。5. The drum-type washing / drying machine according to claim 1, wherein the end of drying is detected based on a capacity value detected in the laundry drying step and a reference value detected first.
燥工程時のドラム回転数を決定することを特徴とする請
求項1記載のドラム式洗濯乾燥機。6. The drum type washing and drying machine according to claim 1, wherein the number of rotations of the drum during the drying step is determined according to the detected capacity of the laundry.
ム回転数を決定することを特徴とする請求項1記載のド
ラム式洗濯乾燥機。7. The drum type washing and drying machine according to claim 1, wherein the number of rotations of the drum is determined according to the progress of drying of the laundry.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9195901A JPH1133283A (en) | 1997-07-22 | 1997-07-22 | Drum type washing and drying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9195901A JPH1133283A (en) | 1997-07-22 | 1997-07-22 | Drum type washing and drying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1133283A true JPH1133283A (en) | 1999-02-09 |
Family
ID=16348880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9195901A Pending JPH1133283A (en) | 1997-07-22 | 1997-07-22 | Drum type washing and drying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1133283A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006223834A (en) * | 2005-02-14 | 2006-08-31 | Lg Electronics Inc | Drum washing machine and its method for detecting amount of cloth |
JP2009011559A (en) * | 2007-07-04 | 2009-01-22 | Sharp Corp | Drum type washing machine |
KR101242798B1 (en) * | 2005-01-26 | 2013-03-12 | 베에스하 보쉬 운트 지멘스 하우스게랫테 게엠베하 | Method for spin-drying textiles after an impregnation process |
JP2013128635A (en) * | 2011-12-21 | 2013-07-04 | Panasonic Corp | Drum-type washing machine |
-
1997
- 1997-07-22 JP JP9195901A patent/JPH1133283A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101242798B1 (en) * | 2005-01-26 | 2013-03-12 | 베에스하 보쉬 운트 지멘스 하우스게랫테 게엠베하 | Method for spin-drying textiles after an impregnation process |
JP2006223834A (en) * | 2005-02-14 | 2006-08-31 | Lg Electronics Inc | Drum washing machine and its method for detecting amount of cloth |
JP2009011559A (en) * | 2007-07-04 | 2009-01-22 | Sharp Corp | Drum type washing machine |
JP2013128635A (en) * | 2011-12-21 | 2013-07-04 | Panasonic Corp | Drum-type washing machine |
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