JP2021108840A - washing machine - Google Patents

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JP2021108840A
JP2021108840A JP2020001787A JP2020001787A JP2021108840A JP 2021108840 A JP2021108840 A JP 2021108840A JP 2020001787 A JP2020001787 A JP 2020001787A JP 2020001787 A JP2020001787 A JP 2020001787A JP 2021108840 A JP2021108840 A JP 2021108840A
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water level
water
time
detected
tank
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JP7232993B2 (en
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悠一 辻
Yuichi Tsuji
悠一 辻
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Panasonic Intellectual Property Management Co Ltd
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Abstract

To prevent damage by water supply valve failure from spreading, and to achieve reduction in standby power.SOLUTION: A control device 3 has a switch 6 for water level detection which is always in an electricity conductive state and performs control of power supply to water level detection means 5. Control means 4 performs a water supply abnormality detection operation after a predetermined time from the operation stop, and by this water supply abnormality detection operation, detects the water level by the water level detection means 5, and in the case where the water level is zero, the switch 6 for water level detection is turned off. With this constitution, electricity conduction to the water level detection means 5 is controlled while the machine body is always in the electricity conductive state, and the abnormality of a water supply valve 19 is quickly detected after the operation stop, and the corresponding action is performed. Thus, the reduction in standby electricity is achieved, waste of water resource is eliminated, and the damage of breaking the floor of a house can be prevented from spreading.SELECTED DRAWING: Figure 1

Description

本開示は、洗濯機に関する。 The present disclosure relates to a washing machine.

特許文献１は、負荷用電源開閉手段が開状態でも、水位検知手段により洗濯槽の水位を検知するようにし、水位が上昇したときに、洗濯槽の溢水異常、すなわち、給水弁の故障により、給水弁から水が漏れていると判断する洗濯機を開示する。 According to Patent Document 1, even when the load power supply opening / closing means is open, the water level of the washing tub is detected by the water level detecting means, and when the water level rises, the washing tub overflows abnormally, that is, the water supply valve fails. Disclose a washing machine that determines that water is leaking from the water supply valve.

特開平１０−２９５９８１号公報Japanese Unexamined Patent Publication No. 10-295981

しかしながら、前記従来の構成では、水位検知手段を常に動作させておく手段では、洗濯運転終了後の待機時電力の増加を招くという課題があった。 However, in the conventional configuration, the means for constantly operating the water level detecting means has a problem that the standby power after the washing operation is completed is increased.

本開示は、前記従来の課題を解決するもので、機体を常時通電状態にしつつ水位検知手段への通電を制御して運転停止後の給水弁の異常を速やかに検知し、その対応を行い、使用者へ異常を通知することで、待機電力の低減を図ると共に、水資源の無駄を省き、家宅の床を破損させるといった拡大被害を防止する洗濯機を提供する。 The present disclosure solves the above-mentioned conventional problems, and controls the energization of the water level detecting means while keeping the machine in the energized state at all times to promptly detect an abnormality of the water supply valve after the operation is stopped and take a countermeasure. By notifying the user of an abnormality, we will provide a washing machine that reduces standby power consumption, eliminates waste of water resources, and prevents extended damage such as damage to the floor of a house.

上記従来の課題を解決するために、本開示の洗濯機は、外枠と、前記外枠内に揺動自在に弾性支持された水槽と、前記水槽に回転自在に内包された洗濯兼脱水槽と、前記洗濯兼脱水槽を回転駆動するモータと、前記水槽に給水する給水弁と、前記水槽内の水位を検知する水位検知手段と、前記外枠内に配設された制御装置と、前記制御装置に設けられ運転コース等のモードや各種機能の選択を行う操作表示手段と、前記制御装置に設けられ各種情報を記憶する記憶手段と、前記制御装置に設けられ各種時間を計測する計時手段と、交流電源を直流に変換し前記制御装置に供給する直流電源装置と、前記制御装置に設けられ前記水位検知手段、前記記憶手段、前記計時手段などの情報を基に、前記モータ、前記給水弁などを制御し、洗い、すすぎ、脱水などの各行程を逐次制御する制御手段と、を備え、前記制御装置は、常時通電状態にあり、前記水位検知手段へ電力供給の制御を行う水位検知用スイッチを有し、前記制御手段は、運転終了して所定時間後に給水異常検知動作を行い、この給水異常検知動作にて、前記水位検知手段により水位を検知し、水位がゼロの場合に、前記水位検知用スイッチをオフにするものである。 In order to solve the above-mentioned conventional problems, the washing machine of the present disclosure includes an outer frame, a water tank rotatably and elastically supported in the outer frame, and a washing / dehydrating tank rotatably contained in the water tank. A motor for rotationally driving the washing / dehydrating tank, a water supply valve for supplying water to the water tank, a water level detecting means for detecting the water level in the water tank, a control device arranged in the outer frame, and the above. An operation display means provided in the control device for selecting a mode such as an operation course and various functions, a storage means provided in the control device for storing various information, and a time measuring means provided in the control device for measuring various times. Based on the information of the DC power supply device that converts the AC power supply into DC and supplies it to the control device, and the information of the water level detecting means, the storage means, the timing means, etc. provided in the control device, the motor and the water supply The control device is provided with a control means for controlling a valve or the like and sequentially controlling each process such as washing, rinsing, and dehydration. The control device is always energized, and water level detection controls power supply to the water level detecting means. The control means has a switch for water supply, and the control means performs a water supply abnormality detection operation after a predetermined time from the end of the operation. In this water supply abnormality detection operation, the water level is detected by the water level detection means, and when the water level is zero, The switch for detecting the water level is turned off.

これによって、機体を常時通電状態にしつつ水位検知手段への通電を制御して運転停止後の給水弁の異常を速やかに検知し、その対応を行い、使用者へ異常を通知することで、待機電力の低減を図ると共に、水資源の無駄を省き、家宅の床を破損させるといった拡大被害を防止することができる。 As a result, while the aircraft is constantly energized, the energization of the water level detection means is controlled to promptly detect an abnormality in the water supply valve after the operation is stopped, take action, and notify the user of the abnormality to stand by. It is possible to reduce power consumption, eliminate waste of water resources, and prevent extended damage such as damage to the floor of a house.

本開示の洗濯機は、機体を常時通電状態にしつつ水位検知手段への通電を制御して運転停止後の給水弁の異常を速やかに検知し、その対応を行い、使用者へ異常を通知することで、待機電力の低減を図ると共に、水資源の無駄を省き、家宅の床を破損させるといった拡大被害を防止することができる。 The washing machine of the present disclosure controls the energization of the water level detecting means while keeping the machine always energized, promptly detects an abnormality of the water supply valve after the operation is stopped, responds to the abnormality, and notifies the user of the abnormality. As a result, standby power can be reduced, waste of water resources can be eliminated, and extended damage such as damage to the floor of the house can be prevented.

実施の形態１における洗濯機の縦断面図Longitudinal sectional view of the washing machine according to the first embodiment 同洗濯機の水位検知手段への電力供給を制御するためのブロック回路図Block circuit diagram for controlling the power supply to the water level detecting means of the washing machine 同洗濯機の給水異常検知制御の動作フローチャートOperation flowchart of water supply abnormality detection control of the washing machine 実施の形態２における洗濯機の縦断面図Longitudinal sectional view of the washing machine according to the second embodiment 同洗濯機の給水異常検知制御の動作フローチャートOperation flowchart of water supply abnormality detection control of the washing machine

以下、発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本開示が限定されるものではない。 Hereinafter, embodiments of the invention will be described with reference to the drawings. The present disclosure is not limited to this embodiment.

（実施の形態１）
図１は、実施の形態１における洗濯機の縦断面図、図２は、同洗濯機の水位検知手段への電力供給を制御するためのブロック回路図、図３は、同洗濯機の給水異常検知制御の動作フローチャートである。 (Embodiment 1)
FIG. 1 is a vertical sectional view of the washing machine according to the first embodiment, FIG. 2 is a block circuit diagram for controlling power supply to the water level detecting means of the washing machine, and FIG. 3 is a water supply abnormality of the washing machine. It is an operation flowchart of detection control.

（１−１．構成）
図１において、洗濯兼脱水槽２２には、中央底部にパルセータ３０が回転自在に配されており、この洗濯兼脱水槽２２は水槽２１に回転自在に内包されている。そして、この水槽２１は、外枠１８の上部角隅より防振装置３３（上部のみ図示、下部は図示せず）を介して垂下防振支持されている。 (1-1. Configuration)
In FIG. 1, a pulsator 30 is rotatably arranged at the center bottom of the washing / dehydrating tub 22, and the washing / dehydrating tub 22 is rotatably included in the water tub 21. The water tank 21 is supported by hanging vibration isolation from the upper corner of the outer frame 18 via a vibration isolation device 33 (only the upper portion is shown and the lower portion is not shown).

水槽２１の外底部に設けられたモータ２８は、その回転力をベルト２９および機構駆動部３４を介してパルセータ３０あるいは洗濯兼脱水槽２２を回転駆動するようになっている。 The motor 28 provided on the outer bottom of the water tank 21 rotationally drives the pulsator 30 or the washing / dehydrating tank 22 via the belt 29 and the mechanism driving unit 34.

また、水槽２１の底部には排水弁２５が設けられ、水槽２１内の水は、排水弁２５の開閉により排水ホース２６を通って外部へ排水される。 A drain valve 25 is provided at the bottom of the water tank 21, and the water in the water tank 21 is drained to the outside through the drain hose 26 by opening and closing the drain valve 25.

また、水槽２１の外周壁下部には、エアートラップ２３を構成し、エアーホース２４にて圧力センサなどで構成された水位検知手段５に連接し、水槽２１内部に給水された洗濯水の水圧により水位を検知することが出来る。 Further, an air trap 23 is formed in the lower part of the outer peripheral wall of the water tank 21, and the air hose 24 is connected to the water level detecting means 5 composed of a pressure sensor or the like, and the water pressure of the washing water supplied to the inside of the water tank 21 is used. The water level can be detected.

外枠１８の上部に配設された上部枠体３１の後部内方には給水弁１９が設けられており、給水弁１９に通電されると、給水された水道水は給水口２０から洗濯兼脱水槽２２内に給水される。 A water supply valve 19 is provided inside the rear portion of the upper frame body 31 arranged above the outer frame 18, and when the water supply valve 19 is energized, the supplied tap water can be washed from the water supply port 20. Water is supplied to the dehydration tank 22.

外枠１８の上部に設けられた上部枠体３１の略中央部には、洗濯物の投入、取り出しを行うための上部枠体開口部３１ａが設けられ、その上部枠体開口部３１ａを開閉自在に覆う蓋体３２が設けられている。 An upper frame opening 31a for loading and unloading laundry is provided at a substantially central portion of the upper frame 31 provided above the outer frame 18, and the upper frame opening 31a can be opened and closed freely. A lid 32 is provided to cover the surface.

上部枠体３１の前方部には、運転コースの設定などを行う入力設定手段（図示せず）と、その入力設定情報などを表示する表示手段（図示せず）を有する操作表示手段７が設けられており、操作表示手段７の内方には制御手段４を有する制御装置３が設けられている。 At the front portion of the upper frame 31, an operation display means 7 having an input setting means (not shown) for setting a driving course and a display means (not shown) for displaying the input setting information and the like is provided. A control device 3 having a control means 4 is provided inside the operation display means 7.

また、水槽２１の上部には、開放端より所定寸法だけ低く、高水位より高い位置に溢水口２７が設けられており、溢水ホース３５を介して排水ホース２６と連通している。溢水口２７は、すすぎ行程における溢水すすぎ時に利用されるとともに、何らかの異常により
水位が上昇している時に、水槽２１から洗濯水が床面へ溢れるのを防ぐために設けられている。 Further, an overflow port 27 is provided in the upper part of the water tank 21 at a position higher than the high water level by a predetermined dimension lower than the open end, and communicates with the drain hose 26 via the overflow hose 35. The overflow port 27 is used at the time of overflow rinsing in the rinsing process, and is provided to prevent the washing water from overflowing from the water tank 21 to the floor surface when the water level is rising due to some abnormality.

つまり、所定の給水流量以下であれば、何らかの原因により上昇してきた水は、この溢水口２７から溢水ホース３５、排水ホース２６を介して機外へ排水され、水槽２１の開放端より床面へ溢れることは無いように構成している。 That is, if the flow rate is equal to or less than the predetermined water supply flow rate, the water that has risen for some reason is drained from the overflow port 27 to the outside of the machine via the overflow hose 35 and the drain hose 26, and is discharged from the open end of the water tank 21 to the floor surface. It is configured so that it will not overflow.

図２において、交流電源１の両端は商用電源を整流し直流を得る直流電源装置２に接続されており、直流電源装置２より制御装置３および洗濯兼脱水槽２２の水位を検知する水位検知手段５へ電力を供給している。なお、制御装置３には、常時通電されている。 In FIG. 2, both ends of the AC power supply 1 are connected to a DC power supply device 2 that rectifies a commercial power source to obtain DC, and a water level detecting means for detecting the water levels of the control device 3 and the washing / dehydrating tank 22 from the DC power supply device 2. Power is being supplied to 5. The control device 3 is always energized.

制御装置３の中には、水位検知手段５から送られてくる信号を元に現在の水位を判定し、かつ、水位検知手段５への電力供給を行う水位検知用スイッチ６へ開閉指示を出す制御手段４と、使用者が洗濯機の操作を行う操作表示手段７を備える。 The control device 3 determines the current water level based on the signal sent from the water level detecting means 5, and issues an open / close instruction to the water level detecting switch 6 that supplies power to the water level detecting means 5. The control means 4 and the operation display means 7 for the user to operate the washing machine are provided.

制御手段４内部には、前回の水位などの各種情報を記憶しておく記憶手段９、水位検知用スイッチ６の開閉動作を時間制御するための計時手段１０、給水弁１９、排水弁２５、モータ２８等の駆動を制御する駆動回路１１、各種計算を行うＣＰＵ（Ｃｅｎｔｒａｌ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ）１２などを内蔵している。 Inside the control means 4, a storage means 9 for storing various information such as the previous water level, a time measuring means 10 for time-controlling the opening / closing operation of the water level detection switch 6, a water supply valve 19, a drain valve 25, and a motor. It has a built-in drive circuit 11 that controls the drive of the 28 and the like, a CPU (Central Processing Unit) 12 that performs various calculations, and the like.

また、溢水の恐れがあると制御手段４が判定した場合、使用者へ異常を通知するための報知手段８が備えられている。報知手段８は、運転終了時の報知なども行う。 Further, when the control means 4 determines that there is a risk of flooding, the notification means 8 for notifying the user of the abnormality is provided. The notification means 8 also performs notification at the end of operation.

給水弁１９が開き、最大水圧で給水できた場合に、溢水口２７まで到達する時間をあらかじめ実験的に測定しておき、その時間を元に、溢水しない時間として最大待機時間を規定すると共に、水位を確認する最低測定回数（例えば、４回）をあらかじめ設定し、最大水圧および最大待機時間、最低測定回数を制御手段４に記憶しておく。さらに、これ以上給水が続く場合、溢水の発生が生じると判定する溢水判定水位２１ｂ、例えば、図１に示す高水位２２ａと溢水口２７の高さである溢水口水位２１ａとの間に溢水判定水位２１ｂを設定し、記憶手段９に記憶しておく。 When the water supply valve 19 opens and water can be supplied at the maximum water pressure, the time to reach the overflow port 27 is experimentally measured in advance, and based on that time, the maximum standby time is defined as the time during which the water does not overflow, and the maximum standby time is defined. The minimum number of measurements for confirming the water level (for example, 4 times) is set in advance, and the maximum water pressure, the maximum standby time, and the minimum number of measurements are stored in the control means 4. Further, if the water supply continues further, the overflow determination water level 21b for determining that the occurrence of overflow occurs, for example, the overflow determination between the high water level 22a shown in FIG. 1 and the overflow port water level 21a which is the height of the overflow port 27. The water level 21b is set and stored in the storage means 9.

（１−２．動作、作用）
以上のように構成された洗濯機について、以下、その動作、作用を説明する。 (1-2. Operation, action)
The operation and operation of the washing machine configured as described above will be described below.

図３において、洗濯運転終了後、例えば、終了１分後に給水異常検知動作の制御が開始される（ステップＳ１００）。例えば、給水弁１９が故障していれば、運転終了にもかかわらず洗濯兼脱水槽２２（水槽２１）内に水が入ってくるので、これを検知するために、ステップＳ１０１にて、水位検知手段５により水位を検知し、検知結果の値を記憶手段９に記憶する。 In FIG. 3, after the washing operation is completed, for example, one minute after the end, the control of the water supply abnormality detection operation is started (step S100). For example, if the water supply valve 19 is out of order, water will enter the washing / dehydrating tank 22 (water tank 21) even after the operation is completed. In order to detect this, the water level is detected in step S101. The water level is detected by the means 5, and the value of the detection result is stored in the storage means 9.

ステップＳ１０２にて水位の検知結果、測定値がゼロの場合（ステップＳ１０２のＹｅｓ）、ステップＳ１０５にて待機時間を最大待機時間に設定し、給水弁１９の故障などは無く洗濯兼脱水槽２２（水槽２１）内に水が入ってくる恐れは無いので、ステップＳ１０６にて、水位検知用スイッチ６により水位検知手段５の電力供給を遮断する。これにより、水位検知手段５による電力消費をゼロにすることができる。 If the water level detection result in step S102 is zero (Yes in step S102), the standby time is set to the maximum standby time in step S105, and there is no failure of the water supply valve 19 and the washing / dehydrating tank 22 (Yes). Since there is no risk of water entering the water tank 21), the power supply of the water level detecting means 5 is cut off by the water level detecting switch 6 in step S106. As a result, the power consumption by the water level detecting means 5 can be reduced to zero.

ステップＳ１０７にて、所定時間経過後に水位検知用スイッチ６を再びオンさせ、水位検知手段５に電力供給を行うと共に、ステップＳ１０８にて水位を検知する。そして、ステップＳ１０９にて、ステップＳ１０８の検知した水位が前回測定時の水位と同一であれば（ステップＳ１０９のＮｏ）、次の洗濯のために別の場所で予洗いした洗濯物が吸い込
んだ水とともに洗濯兼脱水槽２２内に投入されているなどの理由により、洗濯兼脱水槽２２内の水位がこれ以上上昇することは無いので、ステップＳ１１０にて、直ちに水位検知用スイッチ６をオフさせ、ステップＳ１１１にて前回設定した待機時間まで水位検知用スイッチ６のオフを継続して、遮断し続ける。 In step S107, the water level detection switch 6 is turned on again after the elapse of a predetermined time to supply power to the water level detecting means 5, and the water level is detected in step S108. Then, in step S109, if the water level detected in step S108 is the same as the water level at the time of the previous measurement (No in step S109), the water sucked in by the laundry pre-washed in another place for the next washing. Since the water level in the washing / dehydrating tub 22 does not rise any more due to the fact that the water level is charged into the washing / dehydrating tub 22 at the same time, the water level detection switch 6 is immediately turned off in step S110. The water level detection switch 6 is continuously turned off until the standby time set last time in step S111, and the water level detection switch 6 is continuously shut off.

ステップＳ１０９にて、前回測定した水位と異なる場合（ステップＳ１０９のＹｅｓ）は、ステップＳ１１２にて、別途設定している溢水判定水位２１ｂに到達しているか判定し、溢水判定水位２１ｂに到達していないので、溢水の発生がないと判定された場合（ステップＳ１１２のＮｏ）は、ステップＳ１１３にて、前回ステップＳ１０２で検知した水位とステップＳ１０８にて測定した水位との変化量から溢水までの時間ｔｏｆを算出し、ステップＳ１１４にて、この溢水までの時間を最低測定回数（例えば、４回）で除した値を待機時間として再設定すると共に、ステップＳ１１５にて、検知した水位およびステップＳ１１４の待機時間ｔｗを記憶手段９に記憶した後、ステップＳ１１６にて、水位検知用スイッチ６をオフさせ、水位検知手段５への電力供給を遮断する。 If the water level is different from the previously measured water level in step S109 (Yes in step S109), it is determined in step S112 whether or not the separately set overflow determination water level 21b has been reached, and the overflow determination water level 21b has been reached. Therefore, when it is determined that no overflow has occurred (No in step S112), the time from the amount of change between the water level detected in the previous step S102 and the water level measured in step S108 to the overflow in step S113. The tof is calculated, and in step S114, the value obtained by dividing the time until the overflow by the minimum number of measurements (for example, 4 times) is reset as the standby time, and the water level detected in step S115 and the water level in step S114 are reset. After storing the standby time tw in the storage means 9, in step S116, the water level detection switch 6 is turned off to cut off the power supply to the water level detection means 5.

そして、ステップＳ１１７にて、ステップＳ１１４で再設定された待機時間まで水位検知手段５への電力供給を遮断し続け(ステップＳ１１８のＮｏ)、待機時間ｔｗ経過後(ステップＳ１１８のＹｅｓ)に、ステップＳ１０７に戻り、水位検知用スイッチ６を再度オンさせ、水位を再度検知する。以降は、水位変動判定を行う動作を繰り返す。 Then, in step S117, the power supply to the water level detecting means 5 is continuously cut off until the standby time reset in step S114 (No in step S118), and after the standby time tw elapses (Yes in step S118), the step Returning to S107, the water level detection switch 6 is turned on again to detect the water level again. After that, the operation of determining the water level fluctuation is repeated.

なお、ステップＳ１０２にて運転終了直後の水位がゼロでない場合は、ステップＳ１０３にて、検知した水位から最大水圧で給水した場合に溢水口２７まで到達する時間を計算し、ステップＳ１０４にてステップＳ１０３で計算した溢水口２７までの到達時間を最低測定回数で除した値を待機時間に設定した後、ステップＳ１０６にて水位検知用スイッチ６をオフさせ、その後は上記で説明したフローに従う。 If the water level immediately after the end of operation is not zero in step S102, the time to reach the overflow port 27 when water is supplied from the detected water level at the maximum water pressure is calculated in step S103, and step S103 is performed in step S104. After setting the value obtained by dividing the arrival time to the overflow port 27 calculated in step 2 by the minimum number of measurements as the standby time, the water level detection switch 6 is turned off in step S106, and then the flow described above is followed.

そして、ステップＳ１１２にて、溢水判定水位４１ｂに到達しているので、溢水している判定された場合（ステップＳ１１２のＹｅｓ）は、報知手段８にて使用者に給水異常を通知する（ステップＳ１１９）。 Then, since the overflow determination water level 41b has been reached in step S112, when it is determined that the water is overflowing (Yes in step S112), the notification means 8 notifies the user of the water supply abnormality (step S119). ).

（１−３．効果等）
本実施の形態１の洗濯機においては、外枠１８と、外枠１８内に揺動自在に弾性支持された水槽２１と、水槽２１に回転自在に内包された洗濯兼脱水槽２２と、洗濯兼脱水槽２２を回転駆動するモータ２８と、水槽２１に給水する給水弁１９と、水槽２１内の水位を検知する水位検知手段５と、外枠１８内に配設された制御装置３と、制御装置３に設けられ運転コース等のモードや各種機能の選択を行う操作表示手段７と、制御装置３に設けられ各種情報を記憶する記憶手段９と、制御装置３に設けられ各種時間を計測する計時手段１０と、交流電源１を直流に変換し制御装置３に供給する直流電源装置２と、制御装置３に設けられ水位検知手段５、記憶手段９、計時手段１０などの情報を基に、モータ２８、給水弁１９などを制御し、洗い、すすぎ、脱水などの各行程を逐次制御する制御手段４と、を備え、制御装置３は、常時通電状態にあり、水位検知手段５へ電力供給の制御を行う水位検知用スイッチ６を有し、制御手段４は、運転終了して所定時間後に給水異常検知動作を行い、この給水異常検知動作にて、水位検知手段５により水位を検知し、水位がゼロの場合に、水位検知用スイッチ６をオフにするものである。 (1-3. Effects, etc.)
In the washing machine of the first embodiment, the outer frame 18, the water tank 21 oscillatingly and elastically supported in the outer frame 18, the washing / dehydrating tub 22 rotatably contained in the water tub 21, and washing. A motor 28 for rotating and driving the dehydration tank 22, a water supply valve 19 for supplying water to the water tank 21, a water level detecting means 5 for detecting the water level in the water tank 21, a control device 3 arranged in the outer frame 18 and the like. An operation display means 7 provided in the control device 3 for selecting a mode such as an operation course and various functions, a storage means 9 provided in the control device 3 for storing various information, and a storage means 9 provided in the control device 3 for measuring various times. Based on information such as the time measuring means 10 to be used, the DC power supply device 2 that converts the AC power source 1 into direct current and supplies it to the control device 3, the water level detecting means 5, the storage means 9, and the time measuring means 10 provided in the control device 3. , The motor 28, the water supply valve 19, and the like, and the control means 4 for sequentially controlling each process such as washing, rinsing, and dehydration. It has a water level detection switch 6 that controls the supply, and the control means 4 performs a water supply abnormality detection operation after a predetermined time from the end of the operation, and in this water supply abnormality detection operation, the water level is detected by the water level detection means 5. When the water level is zero, the water level detection switch 6 is turned off.

これにより、待機電力の低減を図ることができる。 As a result, the standby power can be reduced.

また、本実施の形態１の洗濯機においては、水槽２１の上部に高水位より高い位置に設けられ、水槽２１内の水を機外へ排水する排水ホース２６と連通する溢水口２７を備え、制御手段４は、水が水槽２１から溢水口２７を介して外部に溢水する溢水口水位２１ａを
設定し、給水異常検知動作にて、検知した水位がゼロで水位検知用スイッチ６をオフにした後、所定時間後に再度、水位検知用スイッチ６をオンにして水位検知手段５にて水位検知を行い、その検知した水位が、記憶手段９に記憶する前回検知水位より高い場合に、その水位の変化量と経過時間により溢水口水位２１ａに至るまでの時間を推定し、その推定時間を基に、次回に、水位検知用スイッチ６をオンにして水位検知手段５にて水位検知を行う時間を決定するものである。 Further, the washing machine of the first embodiment is provided with an overflow port 27 provided above the water tank 21 at a position higher than the high water level and communicating with a drain hose 26 for draining the water in the water tank 21 to the outside of the machine. The control means 4 sets the overflow port water level 21a at which water overflows from the water tank 21 to the outside through the overflow port 27, and in the water supply abnormality detection operation, the detected water level is zero and the water level detection switch 6 is turned off. After that, after a predetermined time, the water level detection switch 6 is turned on again to detect the water level by the water level detecting means 5, and when the detected water level is higher than the previously detected water level stored in the storage means 9, the water level is changed. The time to reach the overflow port water level 21a is estimated from the amount of change and the elapsed time, and based on the estimated time, the time for the water level detection means 5 to detect the water level by turning on the water level detection switch 6 is set next time. It is the one to decide.

これにより、機体を常時通電状態にしつつ水位検知手段５への通電を制御して運転停止後の給水弁１９の異常を速やかに検知し、その対応を行うことで、待機電力の低減を図ると共に、水資源の無駄を省くことができる。 As a result, while keeping the machine in a constantly energized state, the energization of the water level detecting means 5 is controlled to promptly detect an abnormality in the water supply valve 19 after the operation is stopped, and the response is taken to reduce the standby power. , Waste of water resources can be eliminated.

また、本実施の形態１の洗濯機においては、運転終了時や異常発生時の報知を行う報知手段８を備え、制御手段４は、給水異常検知動作にて、水位検知手段５にて検知した水位が、溢水判定水位２１ｂに到達すると判定した場合に、報知手段８により異常報知をするものである。 Further, the washing machine of the first embodiment includes a notification means 8 for notifying when the operation is completed or when an abnormality occurs, and the control means 4 detects the water level by the water level detecting means 5 in the water supply abnormality detecting operation. When it is determined that the water level reaches the overflow determination water level 21b, the notification means 8 notifies the abnormality.

これにより、機体を常時通電状態にしつつ水位検知手段５への通電を制御して運転停止後の給水弁１９の異常を速やかに検知し、使用者に報知することで、待機電力の低減を図ると共に、水資源の無駄を省くことができる。 As a result, the standby power is reduced by controlling the energization of the water level detecting means 5 while keeping the airframe constantly energized, promptly detecting the abnormality of the water supply valve 19 after the operation is stopped, and notifying the user. At the same time, waste of water resources can be eliminated.

（実施の形態２）
図４は、実施の形態２における洗濯機の縦断面図、図５は、同洗濯機の給水異常検知制御の動作フローチャートである。 (Embodiment 2)
FIG. 4 is a vertical cross-sectional view of the washing machine according to the second embodiment, and FIG. 5 is an operation flowchart of water supply abnormality detection control of the washing machine.

なお、水槽及び排水構成以外の構成については、実施の形態１と同じであり、同一符号を付して、説明を省略する。 The configurations other than the water tank and the drainage configuration are the same as those in the first embodiment, and the same reference numerals are given and the description thereof will be omitted.

（２−１．構成）
図４において、水槽４１の底面には、機内排水ホース４２が接続されており、機内排水ホース４２の先端部には、排水ポンプ４３が接続されている。 (2-1. Configuration)
In FIG. 4, an in-flight drain hose 42 is connected to the bottom surface of the water tank 41, and a drainage pump 43 is connected to the tip of the in-flight drain hose 42.

排水ポンプ４３は、機外排水ホース４４を介して、水槽４１内の洗濯液を水槽４１の上端部よりも高いところまで揚水し、排水を行う。そのため、実施の形態１に示した溢水口２７を設けることは出来ない構成となっている。その他構成については、実施の形態１の洗濯機と同じ構成となっている。 The drainage pump 43 pumps the washing liquid in the water tank 41 to a place higher than the upper end of the water tank 41 via the external drain hose 44 to drain the water. Therefore, the overflow port 27 shown in the first embodiment cannot be provided. Other configurations are the same as those of the washing machine of the first embodiment.

また、この構成の場合、溢水水位４１ａは、水槽４１の上端面となっており、仮に、給水弁１９の故障などが発生し、給水が止まらなくなってしまった場合、水が溢水水位４１ａを乗り越えて、床に落下し、水浸しになってしまうといった虞がある。 Further, in the case of this configuration, the overflow water level 41a is the upper end surface of the water tank 41, and if the water supply valve 19 fails and the water supply does not stop, the water exceeds the overflow water level 41a. Therefore, there is a risk that it will fall to the floor and be flooded.

そこで、溢水水位４１ａと高水位２２ａとの間に、溢水判定水位４１ｂを設定する。 Therefore, the overflow determination water level 41b is set between the overflow water level 41a and the high water level 22a.

（２−２．動作、作用）
図５において、ステップＳ２１２、ステップＳ２１９およびステップＳ２２０以外は、実施の形態１と同じ動作であるので、同一ステップ番号を付与し、説明を省略する。 (2-2. Operation, action)
In FIG. 5, the operation is the same as that of the first embodiment except for step S212, step S219, and step S220. Therefore, the same step numbers are assigned and the description thereof will be omitted.

ステップＳ２１２にて、水位を測定し、溢水判定水位４１ｂに達しているか否かを判定する。溢水判定水位４１ｂ以上の水位と判定された場合、ステップＳ２１９にて、排水ポンプ４３を駆動させ、強制的に排水処理を行い、溢水による家屋への拡大被害を抑える。その後、報知手段８にて使用者に給水異常を通知する（ステップＳ２２０）。使用者に異
常を通知することで、拡大被害の抑制を図ることが出来る。 In step S212, the water level is measured to determine whether or not the overflow determination water level 41b has been reached. When it is determined that the water level is equal to or higher than the overflow determination water level 41b, the drainage pump 43 is driven in step S219 to forcibly perform the drainage treatment to suppress the expansion damage to the house due to the overflow. After that, the notification means 8 notifies the user of the water supply abnormality (step S220). By notifying the user of the abnormality, it is possible to suppress the spread damage.

（２−３．効果等）
本実施の形態１の洗濯機においては、水槽２１内の水を機外の水槽２１の上端部よりも高いところまで排水する排水ポンプ４３を備え、制御手段４は、水が水槽２１から外部に溢水する溢水水位４１ａより低く高水位２２ａより高い溢水判定水位４１ｂを設定し、給水異常検知動作にて、検知した水位がゼロで水位検知用スイッチ６をオフにした後、所定時間後に再度、水位検知用スイッチ６をオンにして水位検知手段５にて水位検知を行い、その検知した水位が、記憶手段９に記憶する前回検知水位より高い場合に、その水位の変化量と経過時間により溢水判定水位４１ｂに至るまでの時間を推定し、その推定時間を基に、次回に、水位検知用スイッチ６をオンにして水位検知手段５にて水位検知を行う時間を決定するものである。 (2-3. Effects, etc.)
The washing machine of the first embodiment includes a drainage pump 43 for draining the water in the water tank 21 to a place higher than the upper end of the water tank 21 outside the machine, and the control means 4 provides water from the water tank 21 to the outside. The overflow judgment water level 41b, which is lower than the overflow water level 41a and higher than the high water level 22a, is set, and in the water supply abnormality detection operation, the detected water level is zero and the water level detection switch 6 is turned off. The detection switch 6 is turned on, the water level detecting means 5 detects the water level, and when the detected water level is higher than the previously detected water level stored in the storage means 9, the overflow determination is made based on the amount of change in the water level and the elapsed time. The time until the water level 41b is estimated, and based on the estimated time, the time for the water level detecting means 5 to detect the water level by turning on the water level detecting switch 6 is determined next time.

これにより、機体を常時通電状態にしつつ水位検知手段５への通電を制御して運転停止後の給水弁１９の異常を速やかに検知することで、待機電力の低減を図ると共に、水資源の無駄を省き、家宅の床を破損させるといった拡大被害を防止することができる。 As a result, while keeping the airframe constantly energized, the energization of the water level detecting means 5 is controlled to promptly detect an abnormality in the water supply valve 19 after the operation is stopped, thereby reducing standby power and wasting water resources. It is possible to prevent the spread damage such as damage to the floor of the house.

本実施の形態１の洗濯機においては、運転終了時や異常発生時の報知を行う報知手段８を備え、制御手段４は、給水異常検知動作にて、水位検知手段５にて検知した水位が、溢水判定水位４１ｂに到達すると判定した場合に、排水ポンプ４３を駆動させて排水動作を行い、報知手段８により異常報知をする。 The washing machine of the first embodiment includes a notification means 8 for notifying when the operation is completed or when an abnormality occurs, and the control means 4 measures the water level detected by the water level detecting means 5 in the water supply abnormality detecting operation. When it is determined that the overflow determination water level 41b is reached, the drainage pump 43 is driven to perform the drainage operation, and the notification means 8 notifies the abnormality.

これにより、機体を常時通電状態にしつつ水位検知手段５への通電を制御して運転停止後の給水弁１９の異常を速やかに検知し、排水ポンプ４３にて排水するとともに、使用者へ異常を通知することで、待機電力の低減を図ると共に、水資源の無駄を省き、家宅の床を破損させるといった拡大被害を防止することができる。 As a result, while keeping the machine in a constantly energized state, the energization of the water level detecting means 5 is controlled to promptly detect an abnormality in the water supply valve 19 after the operation is stopped, drainage is performed by the drainage pump 43, and an abnormality is sent to the user. By notifying, it is possible to reduce standby power consumption, eliminate waste of water resources, and prevent extended damage such as damage to the floor of a house.

以上のように、本開示に掛かる洗濯機は、給水弁故障による溢水での拡大被害を防止すると共に、機体を常時通電状態にしつつ、待機電力を低減させることが可能となるので、ドラム式など他の洗濯機の用途に適用できる。 As described above, the washing machine according to the present disclosure can prevent spread damage due to overflow due to a water supply valve failure, and can reduce standby power while keeping the machine in a constantly energized state. Applicable to other washing machine applications.

１ 交流電源
２ 直流電源装置
３ 制御装置
４ 制御手段
５ 水位検知手段
６ 水位検知用スイッチ
７ 操作表示手段
８ 報知手段
９ 記憶手段
１０ 計時手段
１８ 外枠
１９ 給水弁
２１ 水槽
２１ａ 溢水口水位
２１ｂ 溢水判定水位
２２ 洗濯兼脱水槽
２２ａ 高水位
２３ エアートラップ
２４ エアーホース
２５ 排水弁
２６ 排水ホース
２７ 溢水口
２８ モータ
３０ パルセータ
３１ 上部枠体
３１ａ 上部枠体開口部
３２ 蓋体
３５ 溢水ホース
４１ 水槽
４１ａ 溢水水位
４１ｂ 溢水判定水位
４２ 機内排水ホース
４３ 排水ポンプ
４４ 機外排水ホース 1 AC power supply 2 DC power supply device 3 Control device 4 Control means 5 Water level detection means 6 Water level detection switch 7 Operation display means 8 Notification means 9 Storage means 10 Time measuring means 18 Outer frame 19 Water supply valve 21 Water tank 21a Overflow port Water level 21b Overflow judgment Water level 22 Washing and dehydration tank 22a High water level 23 Air trap 24 Air hose 25 Drain valve 26 Drain hose 27 Overflow port 28 Motor 30 Pulsator 31 Upper frame 31a Upper frame opening 32 Lid 35 Overflow hose 41 Water tank 41a Overflow water level 41b Overflow judgment water level 42 In-flight drain hose 43 Drain pump 44 External drain hose

Claims (5)

外枠と、前記外枠内に揺動自在に弾性支持された水槽と、前記水槽に回転自在に内包された洗濯兼脱水槽と、前記洗濯兼脱水槽を回転駆動するモータと、前記水槽に給水する給水弁と、前記水槽内の水位を検知する水位検知手段と、前記外枠内に配設された制御装置と、前記制御装置に設けられ運転コース等のモードや各種機能の選択を行う操作表示手段と、前記制御装置に設けられ各種情報を記憶する記憶手段と、前記制御装置に設けられ各種時間を計測する計時手段と、交流電源を直流に変換し前記制御装置に供給する直流電源装置と、前記制御装置に設けられ前記水位検知手段、前記記憶手段、前記計時手段などの情報を基に、前記モータ、前記給水弁などを制御し、洗い、すすぎ、脱水などの各行程を逐次制御する制御手段と、を備え、前記制御装置は、常時通電状態にあり、前記水位検知手段へ電力供給の制御を行う水位検知用スイッチを有し、前記制御手段は、運転終了して所定時間後に給水異常検知動作を行い、この給水異常検知動作にて、前記水位検知手段により水位を検知し、水位がゼロの場合に、前記水位検知用スイッチをオフにする洗濯機。 The outer frame, the water tank oscillatingly and elastically supported in the outer frame, the washing / dehydrating tank rotatably contained in the water tank, the motor for rotationally driving the washing / dehydrating tank, and the water tank. A water supply valve for supplying water, a water level detecting means for detecting the water level in the water tank, a control device arranged in the outer frame, and a mode and various functions such as an operation course provided in the control device are selected. An operation display means, a storage means provided in the control device for storing various information, a time measuring means provided in the control device for measuring various times, and a DC power supply for converting AC power to DC and supplying the control device. Based on the device and the information of the water level detecting means, the storage means, the timing means, etc. provided in the control device, the motor, the water supply valve, etc. are controlled, and each process such as washing, rinsing, and dehydration is sequentially performed. The control device includes a control means for controlling, the control device is always energized, and has a water level detection switch for controlling power supply to the water level detection means, and the control means has been in operation for a predetermined time. A washing machine that later performs a water supply abnormality detection operation, detects the water level by the water level detecting means in this water supply abnormality detection operation, and turns off the water level detection switch when the water level is zero. 前記水槽の上部に高水位より高い位置に設けられ、前記水槽内の水を機外へ排水する排水ホースと連通する溢水口を備え、前記制御手段は、水が前記水槽から前記溢水口を介して外部に溢水する溢水口水位を設定し、前記給水異常検知動作にて、検知した水位がゼロで前記水位検知用スイッチをオフにした後、所定時間後に再度、前記水位検知用スイッチをオンにして前記水位検知手段にて水位検知を行い、その検知した水位が、前記記憶手段に記憶する前回検知水位より高い場合に、その水位の変化量と経過時間により前記溢水口水位に至るまでの時間を推定し、その推定時間を基に、次回に、前記水位検知用スイッチをオンにして前記水位検知手段にて水位検知を行う時間を決定する請求項１に記載の洗濯機。 The control means is provided with an overflow port which is provided at a position higher than a high water level in the upper part of the water tank and communicates with a drain hose for draining water in the water tank to the outside of the machine. Set the water level at the overflow port that overflows to the outside, turn off the water level detection switch when the detected water level is zero in the water supply abnormality detection operation, and then turn on the water level detection switch again after a predetermined time. When the water level is detected by the water level detecting means and the detected water level is higher than the previously detected water level stored in the storage means, the time required to reach the overflow port water level depending on the amount of change in the water level and the elapsed time. The washing machine according to claim 1, wherein the time for detecting the water level by the water level detecting means is determined next time by turning on the water level detecting switch based on the estimated time. 運転終了時や異常発生時の報知を行う報知手段を備え、前記制御手段は、前記給水異常検知動作にて、前記水位検知手段にて検知した水位が、前記溢水口水位に到達すると判定した場合に、前記報知手段により異常報知をする請求項２に記載の洗濯機。 When the control means determines that the water level detected by the water level detection means reaches the overflow port water level in the water supply abnormality detection operation, which is provided with a notification means for notifying the end of operation or the occurrence of an abnormality. The washing machine according to claim 2, wherein an abnormality is notified by the notification means. 前記水槽内の水を機外の前記水槽の上端部よりも高いところまで排水する排水ポンプを備え、前記制御手段は、水が前記水槽から外部に溢水する溢水水位より低く高水位より高い溢水判定水位を設定し、前記給水異常検知動作にて、検知した水位がゼロで前記水位検知用スイッチをオフにした後、所定時間後に再度、前記水位検知用スイッチをオンにして前記水位検知手段にて水位検知を行い、その検知した水位が、前記記憶手段に記憶する前回検知水位より高い場合に、その水位の変化量と経過時間により前記溢水判定水位に至るまでの時間を推定し、その推定時間を基に、次回に、前記水位検知用スイッチをオンにして前記水位検知手段にて水位検知を行う時間を決定する請求項１に記載の洗濯機。 A drainage pump for draining the water in the water tank to a place higher than the upper end of the water tank outside the machine is provided, and the control means determines the overflow water level lower than the overflow water level at which the water overflows from the water tank to the outside and higher than the high water level. After setting the water level and turning off the water level detection switch when the detected water level is zero in the water supply abnormality detection operation, the water level detection switch is turned on again after a predetermined time and the water level detection means is used. When the water level is detected and the detected water level is higher than the previously detected water level stored in the storage means, the time required to reach the overflow determination water level is estimated from the amount of change in the water level and the elapsed time, and the estimated time is estimated. The washing machine according to claim 1, wherein the time for determining the time for detecting the water level by the water level detecting means is determined next time by turning on the water level detecting switch. 運転終了時や異常発生時の報知を行う報知手段を備え、前記制御手段は、前記給水異常検知動作にて、前記水位検知手段にて検知した水位が、前記溢水判定水位に到達すると判定した場合に、前記排水ポンプを駆動させて排水動作を行い、前記報知手段により異常報知をする請求項４に記載の洗濯機。 When the control means determines that the water level detected by the water level detection means reaches the overflow determination water level in the water supply abnormality detection operation, which is provided with a notification means for notifying the end of operation or the occurrence of an abnormality. The washing machine according to claim 4, wherein the drainage pump is driven to perform a drainage operation, and an abnormality is notified by the notification means.
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Citations (1)

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JP2004321262A (en) * 2003-04-22 2004-11-18 Sharp Corp Washing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004321262A (en) * 2003-04-22 2004-11-18 Sharp Corp Washing machine

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