JP2016022287A

JP2016022287A - Washing machine

Info

Publication number: JP2016022287A
Application number: JP2014150330A
Authority: JP
Inventors: 高田　健太郎; Kentaro Takada; 健太郎高田; 知也吉野; Tomoya Yoshino; 伸一綿引; Shinichi Watabiki; 静夫山岡; Shizuo Yamaoka
Original assignee: Hitachi Appliances Inc
Current assignee: Hitachi Appliances Inc
Priority date: 2014-07-24
Filing date: 2014-07-24
Publication date: 2016-02-08

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine capable of suppressing clogging in a pump for bath water supply, and capable of surely performing bathwater supply.SOLUTION: A washing machine which includes a washing tub, a main water supply valve for supplying tap water, an auxiliary water supply valve for supplying bath water, and a pump for bath water supply for pumping the bath water also includes: a shared water passage in which a water passage from the main water supply valve and a water passage from the auxiliary water supply valve are combined; and a water passage valve provided in the downstream of the shared water passage and for passing water to the washing tub. In a washing step after final supply of bath water, or at the water supply end time of a rinsing step, tap water is passed into the pump for bath water supply from the main water supply valve, in a state where the water passage valve is closed, and then, start-up and stop or normal rotation and reverse rotation of the pump for bath water supply are repeated.SELECTED DRAWING: Figure 3

Description

本発明は洗濯機の制御に関する。 The present invention relates to control of a washing machine.

環境意識への高まりから、風呂水を洗濯に利用することが増加している。風呂水を洗濯機に供給する場合は、通常、ポンプが用いられる。多くの全自動洗濯機は、この風呂水給水用ポンプを内蔵しており、風呂水給水用ポンプの吸入口に接続したホースの先端を風呂水の中に浸漬し、複数の洗濯コースのうちから、風呂水を使用するコースを選択すると、洗剤洗いのための給水時、およびすすぎ洗いのための給水時に風呂水給水用ポンプが給水動作を行って、風呂水を洗濯槽内に供給するようになっている。 Due to the growing awareness of the environment, the use of bath water for washing is increasing. When supplying bath water to a washing machine, a pump is usually used. Many fully automatic washing machines have a built-in pump for bath water supply, so that the tip of the hose connected to the suction port of the bath water supply pump is immersed in the bath water, and it is possible to select from a number of washing courses. When a course that uses bath water is selected, the bath water supply pump performs the water supply operation when supplying water for detergent washing and water for rinsing, so that bath water is supplied into the washing tub. It has become.

特開２００７−２０２７３９号公報JP 2007-202739 A

しかし、風呂水は、水道水などの上水に消毒のために添加されている残留塩素が失われており、人体由来の汗や皮脂などの有機物を含み、また、温度も菌の繁殖に適した３０〜４０℃であるため、風呂水給水用ポンプ内に風呂水を通水したまま放置しておくと、風呂水給水用ポンプ内のヌメリやノロの発生原因となる。このことにより、風呂水給水用ポンプ内の水の流れが悪くなり、最終的に風呂水給水用ポンプ内が詰まって、風呂水吸水性能が低下する。 However, bath water has lost residual chlorine added to tap water such as tap water for disinfection, contains organic matter such as sweat and sebum derived from the human body, and temperature is also suitable for bacterial growth Since the temperature is 30 to 40 ° C., if the bath water is allowed to pass through the bath water supply pump, it may cause slime or slack in the bath water supply pump. As a result, the flow of water in the bath water supply pump is deteriorated, eventually the inside of the bath water supply pump is clogged, and the bath water absorption performance is lowered.

特許文献１では、水道水と風呂水の通水経路を同一にした給水ユニットの構造を開示しているが、水道水を風呂水給水用ポンプ内に通水した後、風呂水給水用ポンプの詰まりを抑制する適切な制御に関しては、開示していない。 Patent Document 1 discloses a structure of a water supply unit in which tap water and bath water flow paths are made the same, but after passing tap water into the bath water supply pump, the bath water supply pump Appropriate control for suppressing clogging is not disclosed.

本発明は、このような事情に鑑みてなされたものであり、風呂水給水用ポンプ内の詰まりを抑制して、風呂水給水を確実に行うことのできる洗濯機を提供することを目的とする。 This invention is made | formed in view of such a situation, and it aims at providing the washing machine which suppresses clogging in the pump for bath water supply, and can perform bath water supply reliably. .

前記目的を達成するため、本発明に係る洗濯機は、洗濯槽と、水道水を給水するための主給水弁と、風呂水を給水するための補助給水弁と、前記洗濯槽に通水するための通水弁と、風呂水を吸い上げるための風呂水給水用ポンプとを備えた洗濯機において、前記主給水弁からの通水経路と前記補助給水弁からの通水経路が結合した構造の通水経路を備え、風呂水最終給水後の洗い行程またはすすぎ行程の給水終了時に、水道水を前記風呂水給水用ポンプ内へ通水した後、前記風呂水給水用ポンプの起動・停止を繰返す、または前記風呂水給水用ポンプの正転・逆転を繰返すことで前記風呂水給水用ポンプを振動運転させる制御を行うことを特徴とする。 In order to achieve the above object, a washing machine according to the present invention passes through a washing tub, a main water supply valve for supplying tap water, an auxiliary water supply valve for supplying bath water, and the washing tub. In a washing machine having a water supply valve for suction and a bath water supply pump for sucking up bath water, the water supply path from the main water supply valve and the water supply path from the auxiliary water supply valve are combined. A water passage is provided, and tap water is passed through the bath water supply pump at the end of water supply in the washing or rinsing process after the final bath water supply, and then the start and stop of the bath water supply pump is repeated. Alternatively, the bath water supply pump is controlled to vibrate by repeating forward and reverse rotations of the bath water supply pump.

本発明によれば、ヌメリやノロの発生原因となる有機物を風呂水給水用ポンプ内から排出することができるため、風呂水給水用ポンプ内の詰まりを抑制し、風呂水吸水性能が低下することなく、洗濯運転時に風呂水を確実に供給可能な洗濯機を提供できる。 According to the present invention, the organic matter that causes the occurrence of slime and noro can be discharged from the bath water supply pump, so clogging in the bath water supply pump is suppressed and the bath water absorption performance is reduced. In addition, it is possible to provide a washing machine that can reliably supply bath water during washing operation.

本発明の一実施例における制御内容を示すフローチャートである。It is a flowchart which shows the control content in one Example of this invention. 本発明の一実施例における洗い行程の内容を示すフローチャートである。It is a flowchart which shows the content of the washing process in one Example of this invention. 本発明の一実施例における風呂水給水用ポンプの振動運転の内容を示すフローチャートである。It is a flowchart which shows the content of the vibration driving | operation of the pump for bath water supply in one Example of this invention. 本発明の一実施例の形態を示す操作パネルの図である。It is a figure of the operation panel which shows the form of one Example of this invention. 本発明の一実施例の形態を示すブロック図である。It is a block diagram which shows the form of one Example of this invention. 本発明の一実施例の形態を示す洗濯機の外観斜視図である。It is an external appearance perspective view of the washing machine which shows the form of one Example of this invention. 本発明の一実施例の形態を示す洗濯機の背面カバーを外して内部構造を示す背面図である。It is a rear view which removes the back cover of the washing machine which shows the form of one Example of this invention, and shows an internal structure. 本発明の一実施例の形態を示す洗濯機の水の流路の模式図である。It is a schematic diagram of the flow path of the water of the washing machine which shows the form of one Example of this invention. 本発明の一実施例の形態を示す風呂水給水用ポンプの外観斜視図である。It is an external appearance perspective view of the pump for bath water supply which shows the form of one Example of this invention.

以下、本発明の一実施例を図面に基づいて説明する。図１は本発明の一実施例における制御内容を示すフローチャート、図２は本発明の一実施例における洗い行程の内容を示すフローチャート、図３は本発明の一実施例における風呂水給水用ポンプの振動運転の内容を示すフローチャート、図４は本発明の一実施例の形態を示す操作パネル図、図５は本発明の一実施例の形態を示すブロック図、図６は本発明の一実施例の形態を示す洗濯機の外観斜視図、図７は本発明の一実施例の形態を示す洗濯機の背面カバーを外して内部構造を示す背面図、図８は本発明の一実施例の形態を示す洗濯機の水の流路の説明模式図、図９は本発明の一実施例の形態を示す風呂水給水用ポンプの外観斜視図である。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a flowchart showing the contents of control in one embodiment of the present invention, FIG. 2 is a flowchart showing contents of a washing process in one embodiment of the present invention, and FIG. 3 is a flow chart of a bath water supply pump in one embodiment of the present invention. FIG. 4 is a control panel diagram showing an embodiment of the present invention, FIG. 5 is a block diagram showing an embodiment of the present invention, and FIG. 6 is an embodiment of the present invention. FIG. 7 is a rear view showing the internal structure of the washing machine according to an embodiment of the present invention with the rear cover removed, and FIG. 8 is an embodiment of the present invention. FIG. 9 is an external perspective view of a bath water supply pump showing an embodiment of the present invention.

図５と図６と図７に示す本実施例の洗濯機は、不揮発性記憶手段１４を備えたマイクロコンピュータ１３と駆動回路１９と通水弁７,風呂水給水用ポンプ９，主給水弁２４，補助給水弁２５などの出力装置６〜１０,２１,２２，２４，２５と入力装置１５〜１８,２０,２３と電源４とリレー５により構成される。操作パネル１の電源「入」スイッチ１２１が押されると、コンセントから供給される電源が整流回路により変圧、整流され、マイクロコンピュータ１３が通電しリレー５が入る。マイクロコンピュータ１３には、蓋ロック検知１５、水位センサ１６、振動センサ１７、回転センサ１８、操作スイッチ２０、モータ電流センサ２３等からの入力信号が与えられ、予め定められたプログラムに従い、モータ６，通水弁７、排水弁８、風呂水給水用ポンプ９、循環ポンプ１０、主給水弁２４、補助給水弁２５等を制御する。駆動回路１９はマイクロコンピュータ１３からの指示に従って導通状態を制御して従属する負荷への給電制御を行い、洗い、すすぎ、脱水の各行程を実行する。洗濯が終了すると、マイクロコンピュータ１３からの信号でリレー５を切り、電源の供給を遮断する。 The washing machine of the present embodiment shown in FIGS. 5, 6 and 7 includes a microcomputer 13 having a nonvolatile memory means 14, a drive circuit 19, a water flow valve 7, a bath water supply pump 9, a main water supply valve 24. , Output devices 6 to 10, 21, 22, 24, 25 such as the auxiliary water supply valve 25, input devices 15 to 18, 20, 23, a power source 4 and a relay 5. When the power “ON” switch 121 of the operation panel 1 is pressed, the power supplied from the outlet is transformed and rectified by the rectifier circuit, the microcomputer 13 is energized, and the relay 5 is turned on. The microcomputer 13 is given input signals from the lid lock detection 15, the water level sensor 16, the vibration sensor 17, the rotation sensor 18, the operation switch 20, the motor current sensor 23, etc., and the motor 6, according to a predetermined program. The water supply valve 7, drain valve 8, bath water supply pump 9, circulation pump 10, main water supply valve 24, auxiliary water supply valve 25, and the like are controlled. The drive circuit 19 controls the conduction state in accordance with an instruction from the microcomputer 13 to perform power supply control to the subordinate load, and executes each step of washing, rinsing, and dewatering. When washing is completed, the relay 5 is turned off by a signal from the microcomputer 13 to cut off the power supply.

図４に示す操作パネルは、洗い時間、すすぎ回数、脱水時間、乾燥時間を設定するキー１０７〜１１０と、洗濯コース、洗乾コース、乾燥コースを設定するキー１０３〜１０５と、スタート・一時停止キー１０６と、洗い時間、すすぎ回数、脱水時間、乾燥時間を表示する７セグメントＬＥＤ１１１〜１１４と、行程の残時間を表示する７セグメントＬＥＤ１１５と、コースを表示するＬＥＤ１１６から構成される。 The operation panel shown in FIG. 4 includes keys 107 to 110 for setting the washing time, the number of times of rinsing, the dehydration time, and the drying time, keys 103 to 105 for setting the washing course, the washing course, and the drying course, and start / pause. It comprises a key 106, 7-segment LEDs 111 to 114 for displaying the washing time, the number of times of rinsing, the dewatering time, and the drying time, a 7-segment LED 115 for displaying the remaining time of the process, and an LED 116 for displaying the course.

実施例の洗濯機において、運転コースは最大１２コース（１１６）、洗い時間は０〜９９分（１１１）、すすぎ回数は０〜９回（１１２）、脱水時間は０〜９分（１１３）、乾燥時間は０〜９９分（１１４）である。 In the washing machine of the example, the driving course is a maximum of 12 courses (116), the washing time is 0 to 99 minutes (111), the number of rinses is 0 to 9 times (112), the dehydration time is 0 to 9 minutes (113), The drying time is 0 to 99 minutes (114).

＜実施例＞
実施例の一連動作を図１のフローチャートに示す。 <Example>
A series of operations of the embodiment is shown in the flowchart of FIG.

まず、電源投入後、洗濯機のイニシャル時の設定コースをＬＥＤと７セグメントＬＥＤで表示(Ｓ１０１)する。洗濯コースと洗い時間、すすぎ回数、脱水時間、乾燥時間、風呂水利用の有無を設定し、スタート・一時停止キーを押下することで、設定されたコースを実行する。 First, after the power is turned on, a setting course at the initial time of the washing machine is displayed with an LED and a 7 segment LED (S101). Set the washing course, washing time, number of rinses, dehydration time, drying time, presence / absence of bath water use, and press the start / pause key to execute the set course.

洗い行程では、図２のフローチャートに示すように、初期水位判定(Ｓ１２０)を行い、洗濯槽内に水が入っていなければ、洗剤量センシング(Ｓ１２１)を行う。その後、センシングした結果を基に、洗濯に必要な水量が決定し、通水弁７を開き、決定した水量の分だけ洗濯槽内に給水(Ｓ１２２)する。このとき、運転前に風呂水での給水が設定されていれば(Ｓ１２３)、風呂水給水用ポンプ９を起動し、補助給水弁２５を開き、風呂水を給水(Ｓ１２４)する。風呂水での給水が設定されていなければ、主給水弁２４を開き、水道水を給水(Ｓ１２５)する。洗濯槽内に必要な分だけ水が溜まったとき、給水時に開いた主給水弁２４または補助給水弁２５を閉じ、風呂水給水用ポンプ９を停止する。風呂水最終給水(すすぎ行程無しで洗い行程で風呂水利用)後であれば(Ｓ１２６)、通水弁７を閉じた後、水道圧により風呂水給水用ポンプ９内部の通水量に差がでないように調整した時間だけ、主給水弁２４を開き、水道水を風呂水給水用ポンプ９内に通水する。風呂水給水用ポンプ９内に水道水が行き渡ると、風呂水給水用ポンプ９を振動運転(Ｓ１２７)（例えば１秒周期で起動・停止を繰返す運転、または１秒周期で正転・逆転を繰返す運転）させる。風呂水給水用ポンプ９の振動運転が終了した後、洗いの攪拌パターンを実行(Ｓ１２８)する。 In the washing process, as shown in the flowchart of FIG. 2, an initial water level determination (S120) is performed, and if there is no water in the washing tub, detergent amount sensing (S121) is performed. Thereafter, the amount of water necessary for washing is determined based on the sensed result, the water passage valve 7 is opened, and water is supplied into the washing tub by the determined amount of water (S122). At this time, if bath water supply is set before operation (S123), the bath water supply pump 9 is activated, the auxiliary water supply valve 25 is opened, and bath water is supplied (S124). If bath water supply is not set, the main water supply valve 24 is opened and tap water is supplied (S125). When the necessary amount of water has accumulated in the washing tub, the main water supply valve 24 or the auxiliary water supply valve 25 opened at the time of water supply is closed, and the bath water supply pump 9 is stopped. If it is after the final bath water supply (use of bath water in the washing process without a rinsing process) (S126), after closing the water valve 7, there is no difference in the water flow inside the bath water supply pump 9 due to the water pressure. The main water supply valve 24 is opened and the tap water is passed through the bath water supply pump 9 for the time adjusted as described above. When tap water reaches the inside of the bath water supply pump 9, the bath water supply pump 9 is oscillated (S127) (for example, an operation that repeatedly starts and stops at a cycle of 1 second, or a forward rotation and a reverse rotation at a cycle of 1 second). Driving). After the vibration operation of the bath water supply pump 9 is completed, a washing stirring pattern is executed (S128).

すすぎ行程でも、洗い行程と同様に、運転前に風呂水での給水が設定されていれば、すすぎ給水終了後の風呂水最終給水後に、水道圧により風呂水給水用ポンプ９内部の通水量に差がでないように調整した時間だけ、主給水弁２４を開き、水道水を風呂水給水用ポンプ９内に通水する。風呂水給水用ポンプ９内に水道水が行き渡ると、風呂水給水用ポンプ９を振動運転（例えば１秒周期で起動・停止を繰返す運転、または１秒周期で正転・逆転を繰返す運転）させる。 In the rinsing process, similarly to the washing process, if water supply with bath water is set before operation, after the final water supply after rinsing water supply, the water flow rate in the bath water supply pump 9 will be adjusted to the water flow rate by the tap water pressure. The main water supply valve 24 is opened for a time adjusted so that there is no difference, and tap water is passed through the bath water supply pump 9. When tap water reaches the inside of the bath water supply pump 9, the bath water supply pump 9 is oscillated (for example, an operation that repeatedly starts and stops at a cycle of 1 second, or an operation that repeats normal rotation and reverse at a cycle of 1 second). .

風呂水給水用ポンプ９の振動運転は、図３のフローチャートに示すように、通水弁７を開いた状態(Ｓ１３０)で給水経路内を排水する（給水時に開いた主給水弁２４または補助給水弁２５は閉じている）。給水経路内の排水が完了すれば(Ｓ１３１)、通水弁７を閉じ(Ｓ１３２)、主給水弁２４を開き(Ｓ１３３)、水道圧により風呂水給水用ポンプ９内部の通水量に差がでないように調整した時間だけ、水道水を給水(Ｓ１３４)する。風呂水給水用ポンプ９内に給水が完了すれば(Ｓ１３５)、主給水弁２４を閉じ(Ｓ１３６)、風呂水給水用ポンプ９を振動運転(Ｓ１３７)させる。風呂水給水用ポンプ９の振動運転を５サイクル実施すれば(Ｓ１３８)、通水弁７を開き(Ｓ１３９)、給水経路内を排水する。給水経路内の排水が完了すれば(Ｓ１４０)、通水弁７を閉じ(Ｓ１４１)、風呂水給水用ポンプ９の振動運転を終了する。 As shown in the flowchart of FIG. 3, the vibration operation of the bath water supply pump 9 drains the water supply path with the water supply valve 7 open (S130) (the main water supply valve 24 or auxiliary water supply opened during water supply). The valve 25 is closed). If drainage in the water supply path is completed (S131), the water supply valve 7 is closed (S132), the main water supply valve 24 is opened (S133), and there is no difference in the water supply amount inside the bath water supply pump 9 due to the water pressure. The tap water is supplied (S134) for the adjusted time. When the water supply into the bath water supply pump 9 is completed (S135), the main water supply valve 24 is closed (S136), and the bath water supply pump 9 is vibrated (S137). If the vibration operation of the bath water supply pump 9 is performed for five cycles (S138), the water valve 7 is opened (S139), and the water supply path is drained. If drainage in the water supply path is completed (S140), the water flow valve 7 is closed (S141), and the vibration operation of the bath water supply pump 9 is ended.

図９の風呂水給水用ポンプ９の構造例に示すように、水の流れが悪い風呂水通水口付近や、洗濯槽への通水口付近まで水道水を通水した後、風呂水給水用ポンプ９を振動運転させることで、通常の風呂水給水用ポンプ９の動作では取りきれないヌメリやノロの発生原因となる有機物を取り、風呂水給水用ポンプ９内の詰まりを抑制する。 As shown in the structural example of the bath water supply pump 9 in FIG. 9, tap water is supplied to the vicinity of the bath water inlet where the water flow is poor or near the outlet to the washing tub, and then the bath water supply pump. By vibrating 9, organic matter that causes generation of slime and slack that cannot be removed by the operation of the normal bath water supply pump 9 is taken, and clogging in the bath water supply pump 9 is suppressed.

すすぎ行程終了後、運転前に設定されたコースに従って、脱水行程及び乾燥行程を実行し、運転終了後に電源を自動で切る。 After the rinsing process, the dehydration process and the drying process are executed according to the course set before the operation, and the power is automatically turned off after the operation.

上記実施例は、ドラム式洗濯機を例に説明したが、縦型式洗濯機に関しても同様に適用できる。 In the above embodiment, the drum type washing machine has been described as an example, but the present invention can be similarly applied to a vertical type washing machine.

１操作パネル
４電源
５リレー
６モータ
７通水弁
８排水弁
９風呂水給水用ポンプ
１０循環ポンプ
１３マイクロコンピュータ
１４不揮発性記憶手段
１５蓋ロック検知
１６水位センサ
１７振動センサ
１８回転センサ
２０操作スイッチ
２１ＬＥＤ表示回路
２２ブザー回路
２３モータ電流センサ
２４主給水弁
２５補助給水弁 1 Operation Panel 4 Power Supply 5 Relay 6 Motor 7 Water Flow Valve 8 Drain Valve 9 Bath Water Supply Pump
DESCRIPTION OF SYMBOLS 10 Circulation pump 13 Microcomputer 14 Non-volatile memory means
15 Lid Lock Detection 16 Water Level Sensor 17 Vibration Sensor 18 Rotation Sensor 20 Operation Switch 21 LED Display Circuit 22 Buzzer Circuit 23 Motor Current Sensor 24 Main Water Supply Valve 25 Auxiliary Water Supply Valve

Claims

洗濯槽と、水道水を給水するための主給水弁と、風呂水を給水するための補助給水弁と、風呂水を吸い上げるための風呂水給水用ポンプとを備えた洗濯機において、前記主給水弁からの通水経路と前記補助給水弁からの通水経路が結合した構造の共用通水経路と、前記共用通水経路の下流に設けられて前記洗濯槽に通水する通水弁と、を備え、風呂水最終給水後の洗い行程またはすすぎ行程の給水終了時に、前記通水弁を閉じた状態で前記主給水弁から水道水を前記風呂水給水用ポンプ内へ通水した後、前記風呂水給水用ポンプの起動と停止を繰り返すことを特徴とする洗濯機。 In the washing machine comprising a washing tub, a main water supply valve for supplying tap water, an auxiliary water supply valve for supplying bath water, and a bath water supply pump for sucking up bath water, the main water supply A common water flow path having a structure in which a water flow path from a valve and a water flow path from the auxiliary water supply valve are combined; a water flow valve provided downstream of the common water flow path and passing through the washing tub; The tap water is passed from the main water supply valve into the bath water supply pump with the water supply valve closed at the end of the water supply in the washing process or the rinsing process after the final water supply of the bath water, A washing machine characterized by repeatedly starting and stopping a bath water supply pump.

洗濯槽と、水道水を給水するための主給水弁と、風呂水を給水するための補助給水弁と、風呂水を吸い上げるための風呂水給水用ポンプとを備えた洗濯機において、前記主給水弁からの通水経路と前記補助給水弁からの通水経路が結合した構造の共用通水経路と、前記共用通水経路の下流に設けられて前記洗濯槽に通水する通水弁と、を備え、風呂水最終給水後の洗い行程またはすすぎ行程の給水終了時に、前記通水弁を閉じた状態で前記主給水弁から水道水を前記風呂水給水用ポンプ内へ通水した後、前記風呂水給水用ポンプの正転と逆転を繰り返すことを特徴とする洗濯機。 In the washing machine comprising a washing tub, a main water supply valve for supplying tap water, an auxiliary water supply valve for supplying bath water, and a bath water supply pump for sucking up bath water, the main water supply A common water flow path having a structure in which a water flow path from a valve and a water flow path from the auxiliary water supply valve are combined; a water flow valve provided downstream of the common water flow path and passing through the washing tub; The tap water is passed from the main water supply valve into the bath water supply pump with the water supply valve closed at the end of the water supply in the washing process or the rinsing process after the final water supply of the bath water, A washing machine characterized by repeating forward and reverse rotations of a bath water supply pump.