JP4103247B2 - Washing machine - Google Patents

Description

【００４９】
【表２】

【００５０】
このように、検出した電圧と周囲温度に応じて、洗剤投入装置１９の動作時間を補正することで、投入量のばらつきを少なくすることができる。
【００５１】
（実施例４）
図５に示す制御手段２８は、水位検出手段２６により検出した洗濯兼脱水槽１内の使用水量に応じて、上記実施例３により補正した洗剤投入装置１９の動作時間をさらに補正するようにしている。他の構成は上記実施例３と同じである。
【００５２】
上記構成において、洗濯時の使用水量が多いときには、液体洗剤１７の必要量は多くなり、逆に洗濯時の使用水量が少ないときには、液体洗剤１７の必要量は少なくなる。たとえば、使用水量が多いときには、電圧、周囲温度に応じた補正を多くする必要がある。逆に使用水量が少ないときには、電圧、周囲温度に応じた補正を少なくする必要がある。
【００５３】
そこで、制御手段２８は第２の補正として、（表３）に示すように、使用水量が多いときには、洗剤投入装置１９の動作時間を長くし、逆に使用水量が少ないときには、洗剤投入装置１９の動作時間を短く補正することで、使用水量に応じた適正な液体洗剤を投入できる。
【００５４】
【表３】

【００５５】
なお、（表３）における補正係数は、上記（表１）および（表２）の補正時間に対する倍数である。
【００５６】
このように、検出した電圧と周囲温度に応じて、洗剤投入装置１９の動作時間に補正し、さらに使用水量に応じて第２の補正を行うことで、電圧、周囲温度、使用水量による液体洗剤１７の投入量のばらつきを少なくすることができ、洗濯液の洗剤濃度をほぼ一定にすることができ、使用水量に関係なく、ほぼ一定の洗濯性能を得ることができる。
【００５７】
（実施例５）
図５に示す制御手段２８は、入力手段２３の操作により、上記実施例４により補正した洗剤投入装置１９の動作時間をさらに補正するようにしている。すなわち、洗剤投入設定スイッチ２３ｆを押した状態で電源入りスイッチ２３ｉをオンし、そのまま洗剤投入設定スイッチ２３ｆを約３秒間押しつづけることにより、動作時間補正モードに入り、その後、洗剤投入設定スイッチ２３ｆを押すごとに（表４）に示すように、補正内容を順に切り換え、水位表示部２４ａに表示するようにしている。
【００５８】
【表４】

【００５９】
なお、（表４）における補正係数は、使用水量に応じた基準動作時間（たとえば、高水位で２０秒）と、上記（表１）、（表２）および（表３）により補正した時間の和に対する倍数である。他の構成は上記実施例３と同じである。
【００６０】
上記構成において、入力手段２３の操作により、洗剤投入装置１９の動作時間を（表４）に示す補正係数により増減することができる。すなわち、基準動作時間と、検出した電圧、周囲温度、使用水量に応じて補正した時間との和の時間に対して、入力手段２３の操作による洗剤投入装置１９の動作時間の増減分で補正を行うことで、洗濯物の汚れなどに合わせて、使用者の意志により洗剤量を増減でき、使い勝手を向上することができる。
【００６１】
（実施例６）
図２に示す制御手段２０は、給水行程における給水開始後、所定時間（たとえば２０秒）経過した後に洗剤投入装置１９を動作させるようにしている。他の構成は上記実施例１と同じである。
【００６２】
上記構成において、洗剤投入装置１９の動作を給水弁１１がオンした後、所定時間遅らせることで、液体洗剤排出口１８ａや液体洗剤１７が投入される経路を予め給水で濡らした後、液体洗剤１７を投入でき、液体洗剤排出口１８ａや投入経路での液体洗剤１７の溶け残りを防ぐことができる。
【００６３】
また、給水の開始と同時に洗剤投入装置１９を動作させた場合は、給水開始後に一時停止され、再度給水された場合などに洗剤投入装置１９が２回動作することになって液体洗剤１７の無駄が発生するが、給水を開始し所定時間経過した後、洗剤投入装置１９を動作させることによりこのような液体洗剤１７の無駄をなくすることができる。
【００６４】
また、給水経路１２と洗剤タンク１８の液体洗剤排出口１８ａとを互いに近接して配置することにより、液体洗剤１７を投入した後に、給水経路１２からの給水によって、液体洗剤排出口１８ａの液体洗剤１７が洗い流されて、すすぎ時に余分な液体洗剤１７が洗濯兼脱水槽１内に投入されるのを防ぐことができる。
【００６５】
なお、本実施例では、上記実施例１の制御手段２０について説明したが、上記実施例３の制御手段２８も同様にすることができ、同様の作用効果を得ることができる。
【００６６】
（実施例７）
図２に示す制御手段２０は、洗濯開始時に洗濯兼脱水槽１内の水位が所定水位以上である場合は、洗剤投入装置１９を動作させないようにしている。他の構成は上記実施例１と同じである。
【００６７】
上記構成において、洗濯開始時に制御手段２０は水位検出手段２６から水位情報を読みとり、すでに洗濯兼脱水槽１内に所定水位以上の水があることを検出した場合には、洗剤投入装置を動作させないようにする。こうすることで、洗濯水を排水せずに洗濯のみを繰り返したときなどで、洗濯開始時にすでに洗濯水が入っているときには、洗剤投入装置１９を動作させないことにより洗剤の無駄をなくすることができる。
【００６８】
なお、本実施例では、上記実施例１の制御手段２０について説明したが、上記実施例３の制御手段２８も同様にすることができ、同様の作用効果を得ることができる。
【００６９】
（実施例８）
図２に示す制御手段２０は、入力手段２３の水位設定スイッチ２３ａの操作により洗濯兼脱水槽１の設定水位を変更したとき、変更後の水位に応じて、洗剤投入装置１９を動作させるようにしている。他の構成は上記実施例１と同じである。
【００７０】
上記構成において、水位設定スイッチ２３ａを押して、水位設定の変更を行うのが、洗剤投入装置１９の動作前または動作中であれば、制御手段２０は変更後の水位に応じた時間だけ洗剤投入装置１９を動作させる。
【００７１】
たとえば、低水位のときの洗剤投入装置１９の動作時間が１７秒であり、中水位のときの洗剤投入装置１９の動作時間が２０秒であるとし、運転当初は低水位に設定されていたのが、給水行程中に水位設定スイッチ２３ａが押されて中水位に変更されたとする。水位設定の変更が洗剤投入装置１９の動作前または動作中であれば、制御手段２０は洗剤投入装置１９の動作時間を変更後の２０秒とする。
【００７２】
こうして、給水行程に水位設定の変更があっても、設定水位に応じた液体洗剤量を投入できて、洗濯液の洗剤濃度をほぼ一定にすることができ、設定水位の変更に関係なく、ほぼ一定の洗濯性能を得ることができる。
【００７３】
なお、本実施例では、上記実施例１の制御手段２０について説明したが、上記実施例３の制御手段２８も同様にすることができ、同様の作用効果を得ることができる。
【００７４】
（実施例９）
図２に示す制御手段２０は、洗剤投入装置１９の動作終了後に、入力手段２３の水位設定スイッチ２３ａの操作により洗濯兼脱水槽１の設定水位を変更したとき、水位設定変更後に洗剤投入装置１９を動作させないようにしている。他の構成は上記実施例１と同じである。
【００７５】
上記構成において、水位設定の変更後に液体洗剤１７を投入すると、その後の給水量が少ないため、液体洗剤１７が洗剤タンク１８の液体洗剤排出口１８ａ付近に残るおそれがある。このため、水位設定変更後に洗剤投入装置を動作させないことにより、液体洗剤が液体洗剤排出口付近に残るのを防ぐことができる。
【００７６】
なお、本実施例では、上記実施例１の制御手段２０について説明したが、上記実施例３の制御手段２８も同様にすることができ、同様の作用効果を得ることができる。
【００７７】
（実施例１０）
図２に示す制御手段２０は、洗剤投入装置１９の動作前または動作中に、表示手段の液体洗剤投入表示部２４ｆを点滅するようにしている。他の構成は上記実施例１と同じである。
【００７８】
上記構成において、洗剤投入装置１９の動作前または動作中に、表示手段の液体洗剤投入表示部２４ｆを点滅することにより、液体洗剤１７の投入中あるいは水位設定変更後の水位に応じた洗剤投入装置１９の動作時間が変更可能なこと表示の点滅で知らせることができ、使い勝手を向上することができる。
【００７９】
なお、本実施例では、上記実施例１の制御手段２０について説明したが、上記実施例３の制御手段２８も同様にすることができ、同様の作用効果を得ることができる。
【００８０】
（実施例１１）
図２に示す制御手段２０は、入力手段２３の操作により、連続して洗剤投入装置１９を動作させるようにしている。すなわち、洗剤投入設定スイッチ２３ｆを押した状態で電源入りスイッチ２３ｉをオンし、そのまま洗剤投入設定スイッチ２３ｆを約３秒間押しつづけた後、洗剤投入設定スイッチ２３ｆを押すことにより、洗剤投入装置１９を連続して動作させるようにしている。他の構成は上記実施例１と同じである。
【００８１】
上記構成において、洗剤投入設定スイッチ２３ｆを上記のように操作することにより、液体洗剤１７は連続的に洗濯兼脱水槽１内に投入され、洗剤タンク１８内の液体洗剤１７をすべて排出することができる。これにより、洗剤タンク１８を水で清掃したり、修理点検時にあらかじめ液体洗剤１７をすべて排出することで修理時の液体洗剤流出を防ぐことができ、使い勝手を向上することができる。
【００８２】
なお、本実施例では、上記実施例１の制御手段２０について説明したが、上記実施例３の制御手段２８も同様にすることができ、同様の作用効果を得ることができる。
【００８３】
（実施例１２）
図２に示す不揮発性記憶手段２５は、液体洗剤１７の投入回数を記憶している。製造時には投入回数０が記憶されており、使用者が洗濯して液体洗剤１７が１回投入されれば１を記憶し、さらに液体洗剤１７が投入されれば２をというように順次投入回数を記憶させる。制御手段２０は、最初に洗剤投入装置１９を動作させるときの動作時間を、２回目以降の動作時間より長くしている。他の構成は上記実施例１と同じである。
【００８４】
上記構成において、液体洗剤１７を初めて投入するときには、洗剤タンク１８から液体洗剤排出口１８ａに至る経路は液体洗剤１７にまだ触れていないため、液体洗剤１７との馴染みがなく投入量がわずかに減少する傾向にある。しかし、一度液体洗剤１７が投入されれば、洗剤タンク１８から液体洗剤排出口１８ａに至る経路は液体洗剤１７の薄い膜が残り、液体洗剤１７との馴染みができて投入量が安定する。
【００８５】
そこで、制御手段２０は、不揮発性記憶手段２５の記憶内容を読み込んで、投入回数が０のとき（すなわち、初めて液体洗剤１７を投入するとき）は、投入回数１以上のときよりも洗剤投入装置１９への電源供給時間を数秒長くする。こうすることで、液体洗剤１７の１回目の投入量の減少を防ぐことができる。
【００８６】
なお、本実施例では、上記実施例１の制御手段２０について説明したが、上記実施例３の制御手段２８も同様にすることができ、同様の作用効果を得ることができる。
【００８７】
【発明の効果】
以上のように本発明の請求項１に記載の発明によれば、水受け槽内に回転自在に配設した洗濯兼脱水槽と、少なくとも２回の洗濯に使用できる量の液体洗剤を収容可能な洗剤タンクと、前記洗剤タンク内の液体洗剤を液体洗剤排出口を介して前記洗濯兼脱水槽内に投入する洗剤投入装置と、前記洗剤投入装置の動作を制御する制御手段とを備え、前記洗剤投入装置は、空気を排出して前記洗剤タンク内に空気を圧送し、前記洗剤タンク内の空気圧を高めて前記液体洗剤を前記液体洗剤排出口より押し出すプランジャ式の空気ポンプからなり、前記制御手段は、商用電源の半波単位でカットして前記洗剤投入装置である前記空気ポンプを動作させ、商用電源の周波数に応じて、単位時間当りのカット数を変えるよう構成したから、洗剤を自動的に投入することができて、使い勝手を向上することができるとともに、洗剤投入装置を商用電源の半波単位でカットして動作させることにより、洗剤投入装置の動作音を低減できるとともに温度上昇を低減することができ、また、商用電源の周波数に応じて単位時間当りのカット数を変えることにより、商用電源の周波数が変わっても洗剤の投入量を同じにすることができる。
【００８８】
また、請求項２に記載の発明によれば、商用電源の電圧を検出する電圧検出手段と、周囲温度を検出する温度検出手段とを備え、制御手段は、検出した電圧と温度に応じて、洗剤投入装置の動作時間を補正するようにしたから、電源電圧と温度が変動しても洗剤の投入量をほぼ一定にすることができる。
【００８９】
また、請求項３に記載の発明によれば、洗濯兼脱水槽内に水位を検出する水位検出手段を備え、制御手段は、使用水量に応じて洗剤投入装置の動作時間を補正するようにしたから、使用水量が多いときは洗剤投入装置の動作時間を長くなるよう補正することにより、洗濯液の洗剤濃度をほぼ一定にすることができ、使用水量に関係なく、ほぼ一定の洗濯性能を得ることができる。
【００９０】
また、請求項４に記載の発明によれば、入力操作を行う入力手段を備え、制御手段は、前記入力手段の操作により洗剤投入装置の動作時間を補正するようにしたから、洗濯物の汚れなどに合わせて洗剤量を増減することができ、使い勝手を向上することができる。
【００９１】
また、請求項５に記載の発明によれば、洗剤タンクの液体洗剤排出口を給水部の近傍に設け、制御手段は、給水行程における給水開始後に洗剤投入装置を動作させるようにしたから、洗剤投入装置を給水を開始し所定時間（たとえば、２０秒）経過した後、動作させることにより、液体洗剤排出口や液体洗剤の投入経路を予め給水で濡らした状態で洗剤を投入でき、液体洗剤排出口や投入経路での液体洗剤の溶け残りを防ぐことができる。
【００９２】
また、請求項６に記載の発明によれば、洗濯兼脱水槽内に水位を検出する水位検出手段を備え、制御手段は、洗濯開始時に洗濯兼脱水槽内の水位が所定水位以上である場合は、洗剤投入装置を動作させないようにしたから、洗剤の無駄をなくすることができる。
【００９３】
また、請求項７に記載の発明によれば、入力操作を行う入力手段を備え、前記入力手段の操作により洗濯兼脱水槽の設定水位を変更できるようにし、制御手段は、変更後の水位に応じて、洗剤投入装置を動作させるようにしたから、設定水位を変更したときにも、洗濯液の洗剤濃度をほぼ一定にすることができ、設定水位の変更に関係なく、ほぼ一定の洗濯性能を得ることができる。
【００９４】
また、請求項８に記載の発明によれば、制御手段は、洗剤投入装置の動作終了後に水位設定の変更をされたときは、水位設定変更後に洗剤投入装置を動作させないようにしたから、洗剤投入装置の動作終了後に、たとえ設定水位が当初よりも高く変更されても、液体洗剤が液体洗剤排出口付近に残るのを防ぐことができる。
【００９５】
また、請求項９に記載の発明によれば、液体洗剤の投入を表示する表示手段を備え、制御手段は、洗剤投入装置の動作前または動作中に、前記表示手段の表示を点滅するようにしたから、表示手段の表示を見て設定水位を変更することができ、使い勝手を向上することができる。
【００９６】
また、請求項１０に記載の発明によれば、入力操作を行う入力手段を備え、制御手段は、前記入力手段の操作により連続して洗剤投入装置を動作させるようにしたから、洗剤タンクの清掃時や修理点検時などに、簡単な操作で洗剤タンクの液体洗剤をすべて排出することができ、使い勝手を向上することができる。
【００９７】
また、請求項１１に記載の発明によれば、制御手段は、最初に洗剤投入装置を動作させるときの動作時間を、２回目以降の動作時間より長くしたから、初めて使用するときに洗剤投入量が少なくなるのを防ぐことができる。
【図面の簡単な説明】
【図１】 本発明の第１の実施例の洗濯機の断面図
【図２】 同洗濯機のブロック回路図
【図３】 同洗濯機の操作表示部の拡大正面図
【図４】 （ａ）同洗濯機の周波数５０Ｈｚのときの洗剤投入装置に印加する電圧波形図
（ｂ）同洗濯機の周波数６０Ｈｚのときの洗剤投入装置に印加する電圧波形図
【図５】 本発明の第３の実施例の洗濯機のブロック回路図
【図６】 従来の洗濯機の断面図
【符号の説明】
１ 洗濯兼脱水槽
３ 水受け槽
１７ 液体洗剤
１８ 洗剤タンク
１９ 洗剤投入装置
２０ 制御手段[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a washing machine having a detergent loading device for loading a liquid detergent into a washing and dewatering tank.
[0002]
[Prior art]
  Conventionally, the washing machine is configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
  As shown in FIG. 6, the washing and dewatering tank 1 has a stirring blade 2 rotatably disposed on the bottom surface, and a water receiving tank 3 provided outside the washing and dewatering tank 1. A motor 4 for driving the washing / dehydrating tub 1 and the stirring blade 2 is attached to the bottom surface of the water receiving tub 3, and the washing / dehydrating tub 1 or the stirring wing 2 is driven via a clutch device 5 for switching the drive unit. It is configured. Further, the water receiving tank 3 is supported by the outer shell 6 via a suspension 7 for vibration isolation. A fluid balancer 8 enclosing a liquid is fixed to the upper part of the washing and dewatering tank 1, and the upper surface of the water receiving tank 3 is covered with a water receiving tank cover 9.
[0004]
  The upper part of the outer shell 6 that stores the water receiving tank 3 is covered with an outer cover 13 that stores the control device 10, the water supply valve 11, the water supply path 12, and the like. At the approximate center of the outer cover 13, there is a hole portion for taking in and out clothing, and a lid 14 is disposed in the hole portion so as to be freely opened and closed.
[0005]
  In the above configuration, in the washing process, an amount of water suitable for the amount of laundry (clothing, etc.) put into the washing and dewatering tub 1 is supplied from the water supply valve 11 to the water receiving tub 3 through the water supply path 12. Further, the detergent is introduced at the same time as the clothes are put in or when the water is supplied, and after that, stirring is performed by the stirring blade 2 to proceed to the process of removing dirt on the clothes. At this time, there are powder detergents and liquid detergents to be put into the washing and dehydrating tank 1, and usually an appropriate amount is put in by using a measuring instrument according to the amount of clothes to be washed each time or the amount of water to be supplied. To do.
[0006]
[Problems to be solved by the invention]
  In such a conventional configuration, when washing is performed every time according to the amount of clothes or the amount of water supplied, washing is carried out with a commercially available container, whether it is a powder detergent or a liquid detergent. There was a problem in the safety at the time of the loading operation that it would spill on the floor or some place with the control device of the washing machine etc. if it was not in the vicinity of the machine. In addition, the weighing is almost visually observed, and the amount of input varies, so that there is a problem in handling that the cleaning power cannot be obtained or the detergent is wasted.
[0007]
  In recent years, in washing machines, fully automatic washing machines that automatically determine the amount of water and automatically advance the washing process are becoming mainstream, and labor saving is progressing. There was a problem of convenience that the measurement had to be put in.
[0008]
  In addition, storing detergentInThere were concerns about storage such as accidental swallowing of infants, liquid detergent flowing out of the container at the time of charging, and falling down and soiling the floor surface during storage.
[0009]
  Thus, in the operation of washing, there is a problem that only the detergent charging method is not practically automated and labor-saving.
[0010]
  The present invention solves the above-described conventional problems, improves the usability by automatically loading the detergent, reduces the operation noise and temperature rise of the detergent charging apparatus, and even if the frequency of the commercial power supply changes, The purpose is to make the input amount the same.
[0011]
[Means for Solving the Problems]
  In order to achieve the above-mentioned object, the present invention provides a liquid detergent in a detergent tank in which a washing and dewatering tub is rotatably disposed in a water receiving tub and can store an amount of liquid detergent that can be used for at least two washings. By detergent charging deviceThrough the liquid detergent outletIt is configured to be put into the washing and dewatering tub, and the operation of the detergent charging device is controlled by the control means.The detergent charging device consists of a plunger-type air pump that exhausts air and pumps air into the detergent tank, increases the air pressure in the detergent tank, and pushes the liquid detergent out of the liquid detergent outlet.The control means is a detergent charging device that cuts in half-wave units of commercial power.Is an air pumpAnd the number of cuts per unit time is changed in accordance with the frequency of the commercial power supply.
[0012]
  As a result, it is possible to automatically supply the detergent, improving the usability, reducing the operation noise and temperature rise of the detergent injection device, and even if the frequency of the commercial power supply changes, The input amount can be the same.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
  The invention according to claim 1 of the present invention includes a washing and dewatering tub rotatably disposed in a water receiving tub, a detergent tank capable of storing an amount of liquid detergent usable for at least two washings, and the detergent. Liquid detergent in the tankThrough the liquid detergent outletA detergent charging device for charging into the washing and dewatering tub, and a control means for controlling the operation of the detergent charging device,The detergent charging device comprises a plunger-type air pump that discharges air and pumps air into the detergent tank, increases air pressure in the detergent tank and pushes the liquid detergent from the liquid detergent discharge port,The control means cuts the commercial power supply in half wave units, and the detergent charging deviceThe air pump isIs configured to change the number of cuts per unit time according to the frequency of the commercial power supply, so that detergent can be automatically loaded and the container is placed near the washing machine body with the container. It is possible to eliminate the inconvenience at the time of adding detergent and the amount of detergent to be introduced, so that the cleaning power does not come out or the detergent is wasted, and the usability is improved. In addition, by operating the detergent charging device by cutting it in half-wave units of the commercial power supply, the number of operations per unit time can be reduced, so that the operating noise of the detergent charging device can be reduced and the temperature rise can be reduced. In addition, by changing the number of cuts per unit time according to the frequency of the commercial power supply, the number of operations per unit time is the same even if the frequency of the commercial power supply changes It can be the same input amount of detergent can.
[0014]
Claim2The invention described is the above claim.1In the described invention, a voltage detection means for detecting the voltage of the commercial power source and a temperature detection means for detecting the ambient temperature are provided, and the control means corrects the operation time of the detergent charging device according to the detected voltage and temperature. When the power supply voltage becomes high or the ambient temperature rises, the amount of detergent to be added increases, but by correcting the operating time of the detergent introduction device according to the power supply voltage and temperature, Even if the power supply voltage and temperature fluctuate, the amount of detergent can be made almost constant.
[0015]
  Claim3The invention described is the above claim.2In the described invention, a water level detecting means for detecting the water level is provided in the washing and dewatering tub, and the control means is adapted to correct the operation time of the detergent charging device according to the amount of water used, and the amount of water used is large. In some cases, the detergent concentration of the washing liquid can be made substantially constant by correcting the operation time of the detergent charging device to be long, and almost constant washing performance can be obtained regardless of the amount of water used.
[0016]
  Claim4The invention according to claim 1 to claim 1Any one of 3In the described invention, an input means for performing an input operation is provided, and the control means corrects the operating time of the detergent charging device by the operation of the input means. By operating, the amount of detergent can be increased or decreased, and usability can be improved.
[0017]
  Claim5The invention described is the above claim.1In the described invention, the liquid detergent discharge port of the detergent tank is provided in the vicinity of the water supply unit, and the control means operates the detergent charging device after starting the water supply in the water supply stroke, and starts the water supply to the detergent charging device. When a predetermined time (for example, 20 seconds) elapses, the liquid detergent discharge port and the liquid detergent input path are preliminarily operated by operating.MeDetergent can be poured while wet with water supply, and liquid detergent can be prevented from remaining undissolved at the liquid detergent outlet and the feeding path. Further, when the detergent charging device is operated simultaneously with the start of water supply, the detergent charging device is operated twice after the water supply is started temporarily, and when the water is supplied again, the detergent is wasted. Then, after the water supply is started and a predetermined time has elapsed, the detergent charging device is operated to eliminate such detergent waste.
[0018]
  Claim6The invention described is the above claim.1In the described invention, a water level detecting means for detecting the water level in the washing and dewatering tub is provided, and the control means does not operate the detergent charging device when the water level in the washing and dewatering tub is equal to or higher than the predetermined water level at the start of washing. If the water level in the washing / dehydrating tub is above the specified water level at the start of washing, it is determined that there is washing liquid in the washing / dehydrating tub, etc., and the detergent is added. By not operating the apparatus, it is possible to eliminate waste of detergent.
[0019]
  Claim7The invention described is the above claim 1.Or 3In the described invention, an input means for performing an input operation is provided, the set water level of the washing and dewatering tub can be changed by the operation of the input means, and the control means operates the detergent charging device according to the changed water level. When the set water level is changed by operating the input means, additional detergent can be added according to the changed water level, and the detergent concentration of the washing liquid can be made almost constant, Regardless of the change in the set water level, almost constant washing performance can be obtained.
[0020]
  Claim8The invention described is the above claim.7In the described invention, when the water level setting is changed after the operation of the detergent charging device is completed, the control means is configured not to operate the detergent charging device after the water level setting is changed. Even if the set water level is changed higher than the initial level, if a liquid detergent is added when the water level is changed, the amount of water supplied thereafter may be small, so the liquid detergent may remain near the liquid detergent outlet in the detergent tank. By not operating the detergent charging device after the setting is changed, it is possible to prevent the liquid detergent from remaining near the liquid detergent outlet.
[0021]
  Claim9The invention described is the above claim.1In the described invention, it is provided with a display means for displaying the introduction of the liquid detergent, and the control means blinks the display of the display means before or during the operation of the detergent charging device. When the display is blinking, it means that the set water level can be changed, and the set water level can be changed by looking at the display on the display means, so that the usability can be improved.
[0022]
  Claim10The invention described is the above claim.1In the described invention, it is provided with an input means for performing an input operation, and the control means is configured to continuously operate the detergent charging device by the operation of the input means. In addition, all the liquid detergent in the detergent tank can be discharged with a simple operation, and the usability can be improved.
[0023]
  Claim11The invention described is the above claim.1In the described invention, the control means is such that the operation time when operating the detergent charging device for the first time is longer than the operation time after the second time, and when operating the detergent charging device for the first time, Since there is no detergent in the detergent charging path from the washing and dewatering tank to the washing and dehydrating tank, the charging amount is not stable, and the charging amount is stable from the second time onward, so the operating time when operating the detergent charging device for the first time should be lengthened. Therefore, it is possible to prevent the amount of detergent input from decreasing when it is used for the first time.
[0024]
【Example】
  Embodiments of the present invention will be described below with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description.
[0025]
  Example 1
  As shown in FIG. 1, the outer cover 15 covers the upper portion of the outer shell 6 and is provided with a water supply valve 11, a water supply path 12, a control device 16, and the like. A detergent tank 18 containing a liquid detergent 17 in an amount that can be used for at least two washings is provided in the outer cover 15. The detergent charging device 19 charges the liquid detergent 17 in the detergent tank 18 into the washing and dewatering tank 1 through the liquid detergent discharge port 18a. Here, the liquid detergent discharge port 18 a of the detergent tank 18 is provided in the vicinity of the water supply path 12.
[0026]
  This detergent charging device 19 is composed of a plunger-type air pump, and is configured to reciprocate the plunger by a current flowing through the coil, thereby operating a diaphragm (none of which is shown) and discharging air. The operation is controlled by the device 16. The detergent tank 18 is hermetically sealed, and the liquid detergent 17 in the detergent tank 18 is introduced into the washing and dehydrating tank 1 by pumping air from the detergent charging device 19.
[0027]
  The control device 16 is configured as shown in FIG. 2, and the control means 20 is constituted by a microcomputer, and via the power switching means 21, the motor 4, the water supply valve 11, the detergent charging device 19, and the drain valve 22. Etc., and a series of steps of washing, rinsing and dehydration are sequentially controlled. The input means 23 is input by the user, gives instructions to the control means 20, and the display means 24 performs a display operation according to the output of the control means 20. The non-volatile storage unit 25 is a storage unit that does not lose the stored contents even if power is not supplied. The water level detection means 26 detects the water level in the washing and dewatering tub 1 and inputs its output to the control means 20.
[0028]
  As shown in FIG. 3, the input means 23 includes a water level setting switch 23a, a washing time setting switch 23b, a rinse number setting switch 23c, a dehydration time setting switch 23d, a start / pause switch 23e, a detergent charging setting switch 23f, a course setting. The switch 23g, the power-off switch 23h, the power-on switch 23i, and the like are included. The detergent charging setting switch 23f constitutes a switch for selecting whether or not to load the liquid detergent 17.
[0029]
  The display means 24 is composed of a light emitting diode and is a digital display for displaying a water level display section 24a, a washing time display section 24b, a rinse count display section 24c, a dehydration time display section 24d, a remaining time, a reserved time, a powder detergent input amount, and the like. The unit 24e, the liquid detergent input display unit 24f, the course display unit 24g, and the like.
[0030]
  The water level display unit 24a displays the water level after detecting the amount of laundry (cloth amount) in the washing and dewatering tub 1 by the cloth amount detection means (not shown), and also displays the water level by the water level setting switch 23a. Can be changed. The liquid detergent insertion display section 24f is turned on when the power-on switch 23i is turned on, and in this state, the liquid detergent 17 corresponding to the result of the cloth amount detection can be automatically input.
[0031]
  Further, the control means 20 cuts the commercial power supply 27 in half-wave units to operate the detergent charging device 19. When the frequency of the commercial power supply 27 is 50 Hz, as shown in FIG. The part is cut and energized at a rate of 1 wave per 5 waves. When the frequency is 60 Hz, the part indicated by the broken line is cut as shown in FIG. Energize at a rate of.
[0032]
  In the above configuration, the detergent tank 18 contains at least two liquid detergents 17 that can be used for washing, the detergent tank 18 is attached in the outer cover 15, and the laundry is placed in the washing and dewatering tub 1. When the power is turned on and the power-on switch 23i is turned on, the liquid detergent loading display portion 24f is lit. In this state, when the operation is started by turning on the start / pause switch 23e, after detecting the amount of cloth, the water level display unit 24a displays the water level according to the amount of laundry in the washing and dewatering tub 1, The water supply valve 11 is turned on to start water supply.
[0033]
  The control device 16 drives the detergent charging device 19 to increase the air pressure in the sealed detergent tank 18 so that the liquid detergent 17 in the detergent tank 18 is liquidized.detergentOutlet 18aExtrude more and put into the washing and dewatering tank 1. Thereby, according to the laundry put into the washing / dehydrating tank 1, the liquid detergent 17 can be put into the washing / dehydrating tank 1 from the liquid detergent discharge port 18a with high accuracy.
[0034]
  At this time, the control means 20 cuts in half-wave units of the commercial power supply 27. When the frequency of the commercial power supply 27 is 50 Hz, the control means 20 is energized at a rate of 1 wave per 5 waves and operates for 13 seconds when the water level is medium. When the frequency is 60 Hz, energization is performed at a rate of 1 wave per 7 waves, and in the case of a mid-water level, by operating for 14 seconds, even if the frequency of the commercial power supply 27 changes, a predetermined amount of liquid for each water level Detergent 17 can be introduced.
[0035]
  In addition, since the detergent charging device 19 is operated by cutting in half-wave units of the commercial power supply 27, the number of operations per unit time is reduced, so that the operating noise of the detergent charging device 19 can be reduced and the temperature rise can be reduced. Can do.
[0036]
  Thereafter, the control device 16 controls the operation of the motor 4, the water supply valve 11, the drain valve 22 and the like, and sequentially controls a series of steps of washing, rinsing, and dewatering. After washing the laundry, it is rinsed and dehydrated.
[0037]
  After the power-on switch 23i is turned on and the liquid detergent insertion display section 24f is lit, the detergent insertion setting switch 23f is pressed to turn off the liquid detergent insertion display section 24f. In this state, the start / pause switch 23e is turned on. When the operation is started, after the cloth amount is detected, the liquid detergent 17 is not automatically put in, and the user puts in the powder detergent according to the powder detergent amount displayed on the digital display unit 24e.
[0038]
  As described above, according to the present embodiment, the liquid detergent must be brought in the vicinity of the washing machine body together with the container, and the inconvenience when the detergent is added, and the amount of detergent to be introduced varies, resulting in an increase in cleaning power. In the handling of waste or waste of detergent, and also storing the detergentInInfants accidentally swallowed, liquid detergent leaks out of the container when thrown in, and can eliminate problems with detergent storage such as falling over and soiling the floor surface during storage. Can be used to improve usability.
[0039]
  In addition, by operating the detergent charging device 19 by cutting it in half-wave units of the commercial power supply 27, the number of operations per unit time is reduced, so that the operation sound of the detergent charging device 19 can be reduced and the temperature rise is reduced. In addition, by changing the number of cuts per unit time according to the frequency of the commercial power source 23, the number of operations per unit time can be made equal even if the frequency of the commercial power source 23 changes, and the amount of detergent input can be reduced. Can be the same.
[0040]
  (Example 2)
  The control means 20 shown in FIG. 2 is configured to change the time for operating the detergent charging device 19 according to the frequency of the commercial power supply 27. That is, the control means 20 cuts in half wave units of the commercial power supply 27, and energizes the detergent charging device 19 by energizing at a rate of 1 wave per 5 waves. When the frequency of the commercial power supply 27 is 50 Hz, The operating time is 13 seconds, and when the frequency is 60 Hz, the operating time is 7 seconds. Other configurations are the same as those of the first embodiment.
[0041]
  In the above configuration, the detergent tank 18 contains at least two liquid detergents 17 that can be used for washing, the detergent tank 18 is attached in the outer cover 15, and the laundry is placed in the washing and dewatering tub 1. When the power is turned on and the power-on switch 23i is turned on, the liquid detergent loading display portion 24f is lit. In this state, when the operation is started by turning on the start / pause switch 23e, after detecting the amount of cloth, the water level display unit 24a displays the water level according to the amount of laundry in the washing and dewatering tub 1, The water supply valve 11 is turned on to start water supply.
[0042]
  The control device 16 drives the detergent charging device 19 to increase the air pressure in the sealed detergent tank 18 so that the liquid detergent 17 in the detergent tank 18 is liquidized.detergentOutlet 18aExtrude more and put into the washing and dewatering tank 1. Thereby, according to the laundry put into the washing / dehydrating tank 1, the liquid detergent 17 can be put into the washing / dehydrating tank 1 from the liquid detergent discharge port 18a with high accuracy.
[0043]
  At this time, since the control means 20 is configured to change the time for which the detergent charging device 19 is operated according to the frequency of the commercial power supply 27, the amount of liquid detergent 17 to be charged is changed even if the frequency of the commercial power supply 27 changes. Can be the same.
[0044]
  (Example 3)
  As shown in FIG. 5, the control device 16a has a control means 28 composed of a microcomputer, a voltage detection means 29 detects the voltage of the commercial power supply 27, and the temperature detection means 30 is an ambient temperature. , And the output of each is input to the control means 28. The control means 28 corrects the operating time of the detergent charging device 19 according to the detected voltage and temperature. Other configurations are the same as those of the first embodiment.
[0045]
  In the above configuration, when the operation is started, the control unit 28 reads the voltage and temperature from the voltage detection unit 29 and the temperature detection unit 30, respectively. In general, when the voltage of the commercial power supply 27 is low, the performance of the pump of the detergent charging device 19 is reduced, so that the amount of liquid detergent 17 is reduced. Conversely, when the voltage is high, the performance is high. The input amount increases.
[0046]
  Further, when the ambient temperature is low, the viscosity of the liquid detergent 17 is high. Conversely, when the ambient temperature is high, the viscosity of the liquid detergent 17 is low. For this reason, when the detergent charging device 19 is operated for a certain period of time, when the temperature is low, the charging amount of the liquid detergent 17 is small, and conversely when the temperature is high, the charging amount of the liquid detergent 17 is large.
[0047]
  Therefore, the control means 28, as shown in (Table 1) and (Table 2), according to the read voltage and temperature with respect to a reference operation time (for example, 20 seconds at a high water level) according to the amount of water used. By correcting the operating time of the detergent charging device 19 to be longer or shorter, it is possible to reduce variations in the amount of the liquid detergent 17 charged due to voltage and ambient temperature.
[0048]
[Table 1]

[0049]
[Table 2]

[0050]
  As described above, by correcting the operation time of the detergent charging device 19 according to the detected voltage and the ambient temperature, it is possible to reduce the variation in the charging amount.
[0051]
  Example 4
  The control means 28 shown in FIG. 5 further corrects the operation time of the detergent charging device 19 corrected according to the third embodiment according to the amount of water used in the washing / dehydrating tub 1 detected by the water level detection means 26. Yes. Other configurations are the same as those of the third embodiment.
[0052]
  In the above configuration, when the amount of water used during washing is large, the required amount of the liquid detergent 17 increases. Conversely, when the amount of water used during washing is small, the required amount of the liquid detergent 17 decreases. For example, when the amount of water used is large, it is necessary to increase the correction according to the voltage and the ambient temperature. Conversely, when the amount of water used is small, it is necessary to reduce the correction according to the voltage and the ambient temperature.
[0053]
  Therefore, as shown in (Table 3), the control means 28 increases the operation time of the detergent charging device 19 when the amount of water used is large, and conversely when the amount of water used is small, as shown in (Table 3). By correcting the operation time to be short, an appropriate liquid detergent corresponding to the amount of water used can be introduced.
[0054]
[Table 3]

[0055]
The correction coefficient in (Table 3) is a multiple of the correction time in (Table 1) and (Table 2).
[0056]
  As described above, the liquid detergent according to the voltage, the ambient temperature, and the amount of water used is corrected according to the detected voltage and the ambient temperature, and the second correction is performed according to the amount of water used. 17 can be reduced in variation, the detergent concentration of the washing liquid can be made substantially constant, and almost constant washing performance can be obtained regardless of the amount of water used.
[0057]
  (Example 5)
  The control means 28 shown in FIG. 5 further corrects the operating time of the detergent charging device 19 corrected according to the fourth embodiment by operating the input means 23. That is, the power-on switch 23i is turned on while the detergent insertion setting switch 23f is pressed, and the operation time correction mode is entered by continuing to press the detergent insertion setting switch 23f for about 3 seconds. Thereafter, the detergent insertion setting switch 23f is turned on. Each time the button is pressed, the correction contents are sequentially switched and displayed on the water level display unit 24a as shown in Table 4.
[0058]
[Table 4]

[0059]
The correction coefficient in (Table 4) is the reference operating time according to the amount of water used (for example, 20 seconds at the high water level) and the time corrected by the above (Table 1), (Table 2) and (Table 3). It is a multiple of the sum. Other configurations are the same as those of the third embodiment.
[0060]
  In the above configuration, the operation time of the detergent charging device 19 can be increased or decreased by the correction coefficient shown in (Table 4) by operating the input means 23. That is, with respect to the sum of the reference operation time and the time corrected according to the detected voltage, ambient temperature, and amount of water used, the correction is made by the increase / decrease of the operation time of the detergent charging device 19 by the operation of the input means 23 By doing so, the amount of detergent can be increased or decreased according to the user's will in accordance with the dirt of the laundry, etc., and the usability can be improved.
[0061]
  (Example 6)
  The control means 20 shown in FIG. 2 operates the detergent charging device 19 after a predetermined time (for example, 20 seconds) has elapsed after the start of water supply in the water supply stroke. Other configurations are the same as those of the first embodiment.
[0062]
  In the above configuration, the operation of the detergent charging device 19 is delayed for a predetermined time after the water supply valve 11 is turned on, so that the liquid detergent discharge port 18a and the path through which the liquid detergent 17 is charged are previously wetted with water supply, and then the liquid detergent 17 And the undissolved residue of the liquid detergent 17 in the liquid detergent discharge port 18a and the charging path can be prevented.
[0063]
  Further, when the detergent charging device 19 is operated simultaneously with the start of water supply, the detergent charging device 19 is operated twice when the water supply is temporarily stopped after the water supply is started and water is supplied again. However, waste of the liquid detergent 17 can be eliminated by operating the detergent charging device 19 after the water supply is started and a predetermined time has elapsed.
[0064]
  Further, by disposing the water supply path 12 and the liquid detergent discharge port 18a of the detergent tank 18 in close proximity to each other, the liquid detergent at the liquid detergent discharge port 18a is supplied by supplying water from the water supply path 12 after the liquid detergent 17 is introduced. It is possible to prevent the excess liquid detergent 17 from being thrown into the washing / dehydrating tank 1 at the time of rinsing.
[0065]
  In addition, although the control means 20 of the said Example 1 was demonstrated in the present Example, the control means 28 of the said Example 3 can also be made the same, and the same effect can be obtained.
[0066]
  (Example 7)
  The control means 20 shown in FIG. 2 prevents the detergent charging device 19 from operating when the water level in the washing and dewatering tub 1 is equal to or higher than the predetermined water level at the start of washing. Other configurations are the same as those of the first embodiment.
[0067]
  In the above configuration, at the start of washing, the control means 20 reads the water level information from the water level detection means 26, and if it is detected that there is already water above the predetermined water level in the washing and dewatering tub 1, the detergent charging device is not operated. Like that. In this way, when only washing is repeated without draining the washing water, and when the washing water is already contained at the start of washing, it is possible to eliminate the waste of the detergent by not operating the detergent charging device 19. it can.
[0068]
  In addition, although the control means 20 of the said Example 1 was demonstrated in the present Example, the control means 28 of the said Example 3 can also be made the same, and the same effect can be obtained.
[0069]
  (Example 8)
  The control means 20 shown in FIG. 2 operates the detergent charging device 19 according to the changed water level when the set water level of the washing and dewatering tub 1 is changed by operating the water level setting switch 23a of the input means 23. ing. Other configurations are the same as those of the first embodiment.
[0070]
  In the above configuration, if the water level setting switch 23a is pressed to change the water level setting before or during the operation of the detergent charging device 19, the control means 20 performs the detergent charging device for the time corresponding to the changed water level. 19 is operated.
[0071]
  For example, the operation time of the detergent charging device 19 at a low water level is 17 seconds, and the operation time of the detergent charging device 19 at a medium water level is 20 seconds. However, suppose that the water level setting switch 23a is pushed during the water supply stroke to change to the middle water level. If the change of the water level setting is before or during the operation of the detergent charging device 19, the control means 20 sets the operating time of the detergent charging device 19 to 20 seconds after the change.
[0072]
  In this way, even if there is a change in the water level setting in the water supply stroke, the amount of liquid detergent corresponding to the set water level can be introduced, and the detergent concentration of the washing liquid can be made substantially constant, regardless of the change in the set water level. A certain washing performance can be obtained.
[0073]
  In addition, although the control means 20 of the said Example 1 was demonstrated in the present Example, the control means 28 of the said Example 3 can also be made the same, and the same effect can be obtained.
[0074]
  Example 9
  The control means 20 shown in FIG. 2 is configured such that when the set water level of the washing and dewatering tub 1 is changed by operating the water level setting switch 23a of the input means 23 after the operation of the detergent charging apparatus 19 is completed, the detergent charging apparatus 19 is changed after the water level setting is changed. Is not allowed to work. Other configurations are the same as those of the first embodiment.
[0075]
  In the above configuration, when the liquid detergent 17 is introduced after the water level setting is changed, the amount of water supplied thereafter is small, and thus the liquid detergent 17 may remain in the vicinity of the liquid detergent discharge port 18 a of the detergent tank 18. For this reason, it is possible to prevent the liquid detergent from remaining in the vicinity of the liquid detergent discharge port by not operating the detergent charging device after the water level setting is changed.
[0076]
  In addition, although the control means 20 of the said Example 1 was demonstrated in the present Example, the control means 28 of the said Example 3 can also be made the same, and the same effect can be obtained.
[0077]
  (Example 10)
  The control means 20 shown in FIG. 2 blinks the liquid detergent input display section 24f of the display means before or during the operation of the detergent input device 19. Other configurations are the same as those of the first embodiment.
[0078]
  In the above-described configuration, the detergent supply device corresponding to the water level during the introduction of the liquid detergent 17 or after the water level setting is changed by blinking the liquid detergent introduction display portion 24f of the display means before or during the operation of the detergent introduction device 19. The fact that the operation time of 19 can be changed can be notified by flashing the display, and the usability can be improved.
[0079]
  In addition, although the control means 20 of the said Example 1 was demonstrated in the present Example, the control means 28 of the said Example 3 can also be made the same, and the same effect can be obtained.
[0080]
  (Example 11)
  The control means 20 shown in FIG. 2 continuously operates the detergent charging device 19 by operating the input means 23. That is, the power-on switch 23i is turned on while the detergent charging setting switch 23f is pressed, and the detergent charging setting switch 23f is continuously pressed for about 3 seconds. It is made to operate continuously. Other configurations are the same as those of the first embodiment.
[0081]
  In the above configuration, by operating the detergent charging setting switch 23f as described above, the liquid detergent 17 is continuously charged into the washing / dehydrating tank 1, and all the liquid detergent 17 in the detergent tank 18 is discharged. it can. Thereby, the detergent tank 18 can be cleaned with water, or the liquid detergent 17 can be prevented from flowing out at the time of repair by discharging all of the liquid detergent 17 in advance at the time of repair and inspection, thereby improving usability.
[0082]
  In addition, although the control means 20 of the said Example 1 was demonstrated in the present Example, the control means 28 of the said Example 3 can also be made the same, and the same effect can be obtained.
[0083]
  (Example 12)
  The non-volatile storage means 25 shown in FIG. At the time of manufacture, the number of times of insertion is stored, and when the user performs washing and the liquid detergent 17 is input once, 1 is stored, and when the liquid detergent 17 is further input, the number of times of input is sequentially increased. Remember. The control means 20 makes the operation time when operating the detergent charging device 19 for the first time longer than the operation time after the second time. Other configurations are the same as those of the first embodiment.
[0084]
  In the above configuration, when the liquid detergent 17 is introduced for the first time, the path from the detergent tank 18 to the liquid detergent discharge port 18a has not yet touched the liquid detergent 17, so that the introduction amount is slightly reduced because the liquid detergent 17 is not familiar. Tend to. However, once the liquid detergent 17 is introduced, a thin film of the liquid detergent 17 remains in the path from the detergent tank 18 to the liquid detergent discharge port 18a, so that the liquid detergent 17 can become familiar and the input amount is stabilized.
[0085]
  Therefore, the control means 20 reads the stored contents of the nonvolatile storage means 25, and when the number of times of charging is 0 (that is, when the liquid detergent 17 is charged for the first time), the detergent charging device is more than when the number of times of charging is 1 or more. The power supply time to 19 is increased by several seconds. By doing so, it is possible to prevent a decrease in the first input amount of the liquid detergent 17.
[0086]
  In addition, although the control means 20 of the said Example 1 was demonstrated in the present Example, the control means 28 of the said Example 3 can also be made the same, and the same effect can be obtained.
[0087]
【The invention's effect】
  As described above, according to the first aspect of the present invention, the washing and dewatering tub disposed rotatably in the water receiving tub and the amount of liquid detergent usable for at least two washings can be accommodated. Clean detergent tank and liquid detergent in the detergent tankThrough the liquid detergent outletA detergent charging device for charging into the washing and dewatering tub, and a control means for controlling the operation of the detergent charging device,The detergent charging device comprises a plunger-type air pump that discharges air and pumps air into the detergent tank, increases air pressure in the detergent tank and pushes the liquid detergent from the liquid detergent discharge port,The control means cuts the commercial power supply in half wave units, and the detergent charging deviceThe air pump isThe system is configured to change the number of cuts per unit time according to the frequency of the commercial power supply, so that detergent can be automatically loaded, improving usability, and the detergent loading device By cutting and operating in units of half a commercial power supply, it is possible to reduce the operating noise of the detergent charging device and reduce the temperature rise, and the number of cuts per unit time can be reduced according to the frequency of the commercial power supply. By changing the amount of detergent can be the same even if the frequency of the commercial power supply changes.
[0088]
Claims2According to the invention described in (4), the voltage detection means for detecting the voltage of the commercial power supply and the temperature detection means for detecting the ambient temperature are provided, and the control means operates the detergent charging device according to the detected voltage and temperature. Since the time is corrected, the amount of detergent to be introduced can be made substantially constant even when the power supply voltage and temperature fluctuate.
[0089]
  Claims3According to the invention described in the above, the water level detecting means for detecting the water level in the washing and dewatering tub is provided, and the control means corrects the operation time of the detergent charging device according to the amount of water used. When the amount is large, the detergent concentration of the washing liquid can be made substantially constant by correcting the operation time of the detergent charging device to be long, and almost constant washing performance can be obtained regardless of the amount of water used.
[0090]
  Claims4According to the invention described in the above, the input means for performing the input operation is provided, and the control means corrects the operation time of the detergent charging device by operating the input means. The amount can be increased or decreased, and the usability can be improved.
[0091]
  Claims5According to the invention described in the above, the liquid detergent discharge port of the detergent tank is provided in the vicinity of the water supply unit, and the control means operates the detergent injection device after the start of water supply in the water supply stroke. After a predetermined time (for example, 20 seconds) has elapsed after starting, the detergent can be put in a state where the liquid detergent outlet and the liquid detergent inlet path are pre-wet with water supply, and the liquid detergent outlet and inlet path Can prevent undissolved residue of liquid detergent.
[0092]
  Claims6According to the invention described in the above, the water level detecting means for detecting the water level in the washing and dewatering tub is provided, and the control means is a detergent charging device when the water level in the washing and dewatering tub is equal to or higher than the predetermined water level at the start of washing. Since it is made not to operate, the waste of the detergent can be eliminated.
[0093]
  Claims7According to the invention described in the above, the input means for performing the input operation is provided, the set water level of the washing and dewatering tub can be changed by the operation of the input means, and the control means supplies the detergent according to the changed water level. Since the apparatus is operated, even when the set water level is changed, the detergent concentration of the washing liquid can be made substantially constant, and almost constant washing performance can be obtained regardless of the change in the set water level. .
[0094]
  Claims8According to the invention described in the above, when the water level setting is changed after the operation of the detergent charging device is finished, the control unit is configured not to operate the detergent charging device after the water level setting is changed. Later, even if the set water level is changed to be higher than the initial level, the liquid detergent can be prevented from remaining near the liquid detergent outlet.
[0095]
  Claims9According to the invention described in the above, the display means for displaying the introduction of the liquid detergent is provided, and the control means blinks the display of the display means before or during the operation of the detergent charging device. The set water level can be changed by looking at the display of, and the usability can be improved.
[0096]
  Claims10According to the invention described in the above, since the input means for performing the input operation is provided, and the control means operates the detergent charging device continuously by the operation of the input means, the detergent tank is cleaned or repaired. For example, all the liquid detergent in the detergent tank can be discharged with a simple operation, and the usability can be improved.
[0097]
  Claims11According to the invention described in the above, since the operation time when operating the detergent charging device for the first time is longer than the operation time for the second and subsequent times, the amount of detergent input is reduced when the controller is used for the first time. Can be prevented.
[Brief description of the drawings]
FIG. 1 is a sectional view of a washing machine according to a first embodiment of the present invention.
FIG. 2 is a block circuit diagram of the washing machine.
FIG. 3 is an enlarged front view of the operation display unit of the washing machine.
FIG. 4 (a) Voltage waveform diagram applied to the detergent charging device when the frequency of the washing machine is 50 Hz.
  (B) Voltage waveform diagram applied to the detergent charging device when the frequency of the washing machine is 60 Hz
FIG. 5 is a block circuit diagram of a washing machine according to a third embodiment of the present invention.
FIG. 6 is a sectional view of a conventional washing machine
[Explanation of symbols]
  1 Washing and dewatering tank
  3 Water receiving tank
  17 Liquid detergent
  18 Detergent tank
  19 Detergent input device
  20 Control means

Claims (11)

A washing and dewatering tub that is rotatably disposed in the water receiving tub, a detergent tank that can store a quantity of liquid detergent that can be used for at least two washings, and a liquid detergent discharge port for the liquid detergent in the detergent tank. And a control means for controlling the operation of the detergent charging device. The detergent charging device discharges air and pumps the air into the detergent tank. And a plunger-type air pump that raises the air pressure in the detergent tank and pushes the liquid detergent out of the liquid detergent discharge port, and the control means cuts in half-wave units of a commercial power source and uses the detergent charging device . A washing machine configured to operate a certain air pump and change the number of cuts per unit time according to a frequency of a commercial power source. A voltage detection means for detecting the voltage of the commercial power supply and a temperature detection means for detecting the ambient temperature are provided, and the control means corrects the operation time of the detergent charging device according to the detected voltage and temperature. Item 1. A washing machine according to Item 1 . The washing machine according to claim 2, further comprising a water level detecting means for detecting a water level in the washing and dewatering tub, wherein the control means corrects the operating time of the detergent charging device in accordance with the amount of water used. The washing machine according to any one of claims 1 to 3 , further comprising an input unit that performs an input operation, wherein the control unit corrects an operation time of the detergent charging device by operating the input unit. Provided liquid detergent outlet of the detergent tank in the vicinity of the water supply, the control means, the washing machine according to claim 1, wherein which is adapted to operate the detergent dosing device after the start of the water supply in the water supply process. A water level detecting means for detecting the water level in the washing and dewatering tub is provided, and the control means is configured not to operate the detergent charging device when the water level in the washing and dewatering tub is equal to or higher than a predetermined water level at the start of washing. 1. The washing machine according to 1 . An input means for performing an input operation, the set water level of the washing and dewatering tub can be changed by operating the input means, and the control means operates the detergent charging device in accordance with the changed water level. Item 4. The washing machine according to Item 1 or 3 . 8. The washing machine according to claim 7 , wherein when the water level setting is changed after the operation of the detergent charging device is finished, the control means does not operate the detergent charging device after the water level setting is changed. Comprising display means for displaying the introduction of liquid detergent, the control means operates before or during operation of the detergent supply device, the washing machine according to claim 1, wherein was set to blink the display of the display means. An input means for performing an input operation, the control means, the washing machine according to claim 1, wherein which is adapted to operate the detergent system continuously by the operation of said input means. Control means, the washing machine of the initially the operating time when operating the detergent dosing device, according to claim 1, wherein the longer than the operating time of the second and subsequent.

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