JP2010162261A - Dishwasher - Google Patents

Dishwasher Download PDF

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JP2010162261A
JP2010162261A JP2009008586A JP2009008586A JP2010162261A JP 2010162261 A JP2010162261 A JP 2010162261A JP 2009008586 A JP2009008586 A JP 2009008586A JP 2009008586 A JP2009008586 A JP 2009008586A JP 2010162261 A JP2010162261 A JP 2010162261A
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cleaning
water
washing
detergent
pump
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Ryusuke Imanishi
龍介 今西
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Panasonic Corp
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Panasonic Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher capable of providing uniform-density washing water with high concentration of a detergent in an early stage at a low water level, providing a jet of washing water from a washing nozzle with a high concentration of a detergent from the beginning, and effectively making the washing water work on dirt to attain higher washing effect. <P>SOLUTION: A control means 17 performs a detergent dissolving step for dissolving a charged detergent at the beginning of a washing step, and in the detergent dissolving step, it controls a water supply valve 12 in association with water level detecting means 14 to supply water to a water level lower than that in the step performed after the detergent dissolving step. The control means further controls a washing pump 9 to rotate forward and reverse directions. Uniform-density washing water with a high concentration of a detergent can be generated in an early stage at a low water level, and washing can be performed using washing water with a high concentration of a detergent from the beginning so that a higher washing effect can be obtained. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、洗浄ポンプから吐出される洗浄水を洗浄ノズルから食器類に向けて噴射して食器類を洗浄する食器洗い機に関するものである。   The present invention relates to a dishwasher for washing dishes by spraying wash water discharged from a washing pump from a washing nozzle toward dishes.

従来、この種の食器洗い機は、調理器具などのように汚れの強い食器類を洗浄するためには、洗浄時間を延長したり、洗浄行程または加熱すすぎ行程の終了温度を高くする念入りコースを標準コースとは別に設け、使用者が念入りコースを選択したり、標準コースより低い水位で高濃度洗浄液を食器類に噴射する高濃度洗浄コースを選択することで対応していた(例えば、特許文献1参照)。   Conventionally, this type of dishwasher has a standardized course that extends the washing time or raises the end temperature of the washing or heating rinsing process in order to wash dirty dishes such as cooking utensils. It is provided separately from the course, and the user can select a careful course or select a high-concentration washing course in which a high-concentration washing liquid is jetted to tableware at a lower water level than the standard course (for example, Patent Document 1). reference).

このような従来の食器洗い機は、図7および図8に示すように構成している。以下その構成について説明する。図7に示すように、洗浄槽1は前方に開口部2を有し、この開口部2を扉3により開閉するとともに、内部に洗浄水を噴射する洗浄ノズル4を回転自在に設けており、洗浄槽1内に食器類5を収納する食器かご6を配置している。洗浄槽1は台枠7にて支持されている。   Such a conventional dishwasher is configured as shown in FIGS. The configuration will be described below. As shown in FIG. 7, the cleaning tank 1 has an opening 2 in the front, and the opening 2 is opened and closed by a door 3, and a cleaning nozzle 4 for injecting cleaning water is rotatably provided therein. A table basket 6 for storing the tableware 5 is disposed in the washing tank 1. The cleaning tank 1 is supported by a frame 7.

洗浄槽1内の洗浄水はヒータ8によって温水化され、洗浄ポンプ9にて残滓フィルタ11を備えた排水口10から吸い込まれ、洗浄ノズル4に圧送されて食器類5に向けて噴出し、循環することにより洗浄するよう構成している。給水弁12は洗浄槽1への洗浄水の供給を制御するものである。排水ポンプ13は洗浄槽1の下部に設け、洗浄槽1内の洗浄水を機外に排出するものである。水位検知手段14は洗浄槽1内の水位を検知するもので、洗浄槽1と連通された補助槽15中の水位を検知することで、洗浄槽1内の水位が所定水位に達しているかを検知する。   The washing water in the washing tank 1 is warmed by the heater 8, sucked from the drain port 10 having the residue filter 11 by the washing pump 9, pumped to the washing nozzle 4, ejected toward the dishes 5, and circulated. It is comprised so that it may wash by doing. The water supply valve 12 controls the supply of cleaning water to the cleaning tank 1. The drainage pump 13 is provided in the lower part of the washing tank 1 and discharges the washing water in the washing tank 1 to the outside of the machine. The water level detection means 14 detects the water level in the cleaning tank 1, and detects whether the water level in the cleaning tank 1 has reached a predetermined water level by detecting the water level in the auxiliary tank 15 communicated with the cleaning tank 1. Detect.

制御装置24は、図8に示すように構成しており、制御手段26は、マイクロコンピュータなどで構成し、運転コースなどを設定する入力手段25より使用者が設定したコースに応じて、負荷制御手段19を介してヒータ8、洗浄ポンプ9、給水弁12、排水ポンプ13、送風ファン20などの動作を制御し、洗浄、すすぎ、乾燥の一連の行程を逐次制御するよう構成している。   The control device 24 is configured as shown in FIG. 8, and the control means 26 is constituted by a microcomputer or the like, and load control is performed according to the course set by the user from the input means 25 for setting the driving course and the like. The operation of the heater 8, the cleaning pump 9, the water supply valve 12, the drainage pump 13, the blower fan 20, etc. is controlled via the means 19, and a series of steps of cleaning, rinsing and drying are sequentially controlled.

ここで、制御手段26は洗浄槽1の下面に密接させたサーミスタ21により、洗浄槽1内の洗浄水温を検知し、洗浄水温が所定温度に達すると洗浄行程を終了する。なお、22は制御手段26に直流電圧を供給する電源回路、23は表示動作をする表示手段である。   Here, the control means 26 detects the temperature of the cleaning water in the cleaning tank 1 by the thermistor 21 in close contact with the lower surface of the cleaning tank 1, and ends the cleaning process when the cleaning water temperature reaches a predetermined temperature. Reference numeral 22 denotes a power supply circuit for supplying a DC voltage to the control means 26, and reference numeral 23 denotes display means for performing a display operation.

上記構成において、汚れの強い食器類を洗浄するために、使用者が念入りコースを選択した場合について、その動作を説明する。運転は洗浄行程、すすぎ行程、加熱すすぎ行程、乾燥行程の順に行われる。洗浄行程は、洗浄行程1と洗浄行程2に分かれている。図9は入力手段25の操作部、図10は洗浄行程1の動作を、図11は洗浄行程2の動作をそれぞれ示している。   In the above-described configuration, the operation will be described for the case where the user selects a careful course in order to wash highly dirty dishes. The operation is performed in the order of a washing process, a rinsing process, a heating rinsing process, and a drying process. The cleaning process is divided into a cleaning process 1 and a cleaning process 2. 9 shows the operation unit of the input means 25, FIG. 10 shows the operation of the cleaning process 1, and FIG. 11 shows the operation of the cleaning process 2.

洗浄行程1では、使用者は、食器かご6に食器類5をセットし、洗剤を所定量入れ、扉3を閉め、入力手段25の電源スイッチ25aをオンし、食器類5の量または汚れに適した運転コースを、コース設定スイッチ25dにより選択して設定し、必要に応じて乾燥時間設定スイッチ25cにより加熱すすぎ行程終了後の乾燥時間を設定し、スタートボタン25bを押すことで運転を開始する。   In the cleaning process 1, the user sets the tableware 5 in the tableware basket 6, puts a predetermined amount of detergent, closes the door 3, turns on the power switch 25a of the input means 25, and makes the amount of the tableware 5 dirty. A suitable driving course is selected and set by the course setting switch 25d, and if necessary, the drying time after the heating rinsing process is set by the drying time setting switch 25c, and the operation is started by pressing the start button 25b. .

入力手段25により念入りコースを設定した場合、洗浄行程1では、図10のステップ80にて運転を開始すると、ステップ81にて給水弁12を開いて所定水位まで給水し、ステップ82にて洗浄ポンプ9を間欠動作させて洗浄ノズル4より食器類5に向けて洗浄水を噴射するとともに、ヒータ8に間欠通電して洗浄水を加熱する。ステップ83にて経過時間が所定時間以上になると、洗浄行程1を終了してステップ84へ進み、洗浄行程2へ進む。   When a careful course is set by the input means 25, in the cleaning process 1, when the operation is started in step 80 of FIG. 10, the water supply valve 12 is opened in step 81 to supply water to a predetermined water level, and in step 82, the cleaning pump 9 is intermittently operated to inject cleaning water from the cleaning nozzle 4 toward the dishes 5, and the heater 8 is intermittently energized to heat the cleaning water. When the elapsed time becomes equal to or longer than the predetermined time in step 83, the cleaning process 1 is finished, the process proceeds to step 84, and the process proceeds to the cleaning process 2.

洗浄行程2では、図11のステップ90にて運転を開始すると、ステップ91にて給水弁12を開いて所定時間追加給水し、標準コースの洗浄行程の水位と同じ水位とし、ステップ92にて洗浄ポンプ9を連続動作させて洗浄ノズル4より食器類5に向けて洗浄水を噴射するとともに、ヒータ8に連続通電して洗浄水を加熱する。   In the cleaning process 2, when the operation is started in Step 90 of FIG. 11, the water supply valve 12 is opened in Step 91 and additional water is supplied for a predetermined time. The water level is the same as the water level in the cleaning process of the standard course. The pump 9 is continuously operated to inject cleaning water from the cleaning nozzle 4 toward the dishes 5, and the heater 8 is energized continuously to heat the cleaning water.

ステップ93にて洗浄水の温度が所定温度以上になると、ステップ94にてヒータ8をオフする。ステップ95にて経過時間が所定時間以上になるとステップ96へ進み、排水ポンプ13をオンして排水し、ステップ97にて次行程に進む。   When the temperature of the washing water becomes equal to or higher than the predetermined temperature in step 93, the heater 8 is turned off in step 94. When the elapsed time exceeds the predetermined time in step 95, the process proceeds to step 96, the drain pump 13 is turned on to drain water, and the process proceeds to the next step in step 97.

その後、すすぎ行程と加熱すすぎ行程を行い、乾燥行程を経て動作を終了する。
特開2003−174994号公報
Thereafter, a rinsing process and a heating rinsing process are performed, and the operation is finished through a drying process.
JP 2003-174994 A

しかしながら、このような従来の食器洗い機では、このような場合は汚れに対してわざわざコースを選択させる必要があるため、利便性にかけていた。また、洗剤濃度を高くすることは可能だが、洗浄ポンプを一定方向のみ回転させるので洗剤を溶解し一定濃度の洗浄水にするのに時間がかかり、噴射当初からすべての食器類に同じ濃度の洗浄水を噴射させる手段がなかった。   However, in such a conventional dishwasher, in such a case, it is necessary to bother the course to be selected against the dirt, so it has been convenient. Although it is possible to increase the detergent concentration, since the washing pump is rotated only in a certain direction, it takes time to dissolve the detergent and create a constant concentration of washing water. There was no means to spray water.

本発明は上記従来の課題を解決するもので、洗浄行程の最初に、後の行程の水位よりも低い水位で洗剤ポンプを正逆回転させる洗剤溶解行程を設けることにより、低い水位にて早期に洗剤濃度の高い一定密度の洗浄水にすることができ、調理器具などの汚れが強いものを洗浄する場合において洗浄ノズルからの噴射洗浄水が当初から洗浄濃度の高い洗浄水とすることができるため、汚れに対して効果的に作用させることが可能となり、より高い洗浄効果を得ることができる食器洗い機を提供することを目的としている。   The present invention solves the above-mentioned conventional problems, and at the beginning of the cleaning process, by providing a detergent dissolving process that rotates the detergent pump forward and backward at a level lower than the level of the subsequent process, an early stage at a low level. Because it can be used as washing water with a high detergent concentration and a constant density, when washing highly-stained items such as cooking utensils, the washing water sprayed from the washing nozzle can be used as washing water with a high washing concentration from the beginning. An object of the present invention is to provide a dishwasher that can effectively act against dirt and can obtain a higher cleaning effect.

本発明は上記目的を達成するために、運転コースなどを設定する入力手段の設定に基づいて、制御手段により洗浄、すすぎ、乾燥などの行程を逐次制御するよう構成し、制御手段は、洗浄行程の最初に、投入された洗剤を溶解させる洗剤溶解行程を実行するとともに、その洗剤溶解行程において、水位検知手段と連係して給水手段を制御して洗剤溶解行程より後に実行する行程の水位よりも低い水位に給水を行うとともに、洗浄ポンプを正逆回転させるように制御するように構成したものである。   In order to achieve the above object, the present invention is configured so that the control means sequentially controls processes such as washing, rinsing and drying based on the setting of the input means for setting the operation course and the like. First, a detergent dissolution process for dissolving the introduced detergent is performed, and in the detergent dissolution process, the water supply means is controlled in conjunction with the water level detection means, and the water level of the process executed after the detergent dissolution process is exceeded. While supplying water to a low water level, it controls so that a washing pump may rotate forward and reverse.

これにより、洗浄行程の最初に、後の行程の水位よりも低い水位で洗剤ポンプを正逆回転させる洗剤溶解行程を設けることで、低い水位にて早期に洗剤濃度の高い一定密度の洗浄水にすることができ、調理器具などの汚れが強いものを洗浄する場合において洗浄ノズルからの噴射洗浄水が当初から洗浄濃度の高い洗浄水のため汚れに対して効果的に作用させることが可能となり、より高い洗浄効果を得ることができる。   As a result, at the beginning of the cleaning process, by providing a detergent dissolution process that rotates the detergent pump forward and reverse at a level lower than the level of the subsequent process, the detergent concentration can be rapidly increased to a constant density at a low level. In the case of washing highly-stained items such as cooking utensils, it becomes possible for jet cleaning water from the cleaning nozzle to act effectively against dirt because the cleaning water has a high cleaning concentration from the beginning, A higher cleaning effect can be obtained.

本発明の食器洗い機は、洗浄行程の最初に、後の行程の水位よりも低い水位で洗剤ポン
プを正逆回転させる洗剤溶解行程を設けることにより、低い水位にて早期に洗剤濃度の高い一定密度の洗浄水にすることができ、調理器具などの汚れが強いものを洗浄する場合において洗浄ノズルからの噴射洗浄水が当初から洗浄濃度の高い洗浄水とすることができるため、汚れに対して効果的に作用させることが可能となり、より高い洗浄効果を得ることができる。
The dishwasher of the present invention has a constant density with a high detergent concentration at an early stage at a low water level by providing a detergent dissolving process that rotates the detergent pump forward and reverse at a water level lower than the water level in the subsequent process at the beginning of the washing process. When washing highly-stained items such as cooking utensils, spray water from the cleaning nozzle can be used as cleaning water with a high cleaning concentration from the beginning. Therefore, a higher cleaning effect can be obtained.

第1の発明は、食器類等の被洗浄物を収容する洗浄槽と、被洗浄物に洗浄水を噴射する洗浄ノズルと、前記洗浄ノズルに洗浄水を圧送する洗浄ポンプと、前記洗浄槽内に給水を行う給水手段と、前記洗浄槽内の水位を検知する水位検知手段と、洗浄、すすぎ、および乾燥の各行程を制御する制御手段とを備え、前記制御手段は、洗浄行程の最初に、投入された洗剤を溶解させる洗剤溶解行程を実行するとともに、その洗剤溶解行程において、前記水位検知手段と連係して前記給水手段を制御して洗剤溶解行程より後に実行する行程の水位よりも低い水位に給水を行うとともに、前記洗浄ポンプを正逆回転させるよう制御するよう構成したものであり、低い水位にて早期に洗剤濃度の高い一定密度の洗浄水にすることができ、調理器具などの汚れが強いものを洗浄する場合において洗浄ノズルからの噴射洗浄水が当初から洗浄濃度の高い洗浄水とすることができるため、汚れに対して効果的に作用させることが可能となり、より高い洗浄効果を得ることができる。   The first invention includes a cleaning tank for storing objects to be cleaned such as tableware, a cleaning nozzle for injecting cleaning water to the objects to be cleaned, a cleaning pump for pumping cleaning water to the cleaning nozzle, and the inside of the cleaning tank Water supply means for supplying water, water level detection means for detecting the water level in the cleaning tank, and control means for controlling the cleaning, rinsing, and drying processes, the control means at the beginning of the cleaning process , Executing a detergent dissolution process for dissolving the introduced detergent, and in the detergent dissolution process, controlling the water supply means in conjunction with the water level detection means to lower the water level of the process executed after the detergent dissolution process It is configured to supply water to the water level and to control the washing pump to rotate in the forward and reverse directions. At a low water level, the washing water can be made into a constant density with a high detergent concentration at an early stage. Dirty In the case of washing strong objects, the washing water jetted from the washing nozzle can be washed water having a high washing concentration from the beginning, so that it can act effectively against dirt, and a higher washing effect can be obtained. Obtainable.

第2の発明は、上記第1の発明において、制御手段は、洗剤溶解行程の後に排水および給水を行わずに、洗浄ポンプを一方向に回転させる動作を間欠的に行うことで洗浄ノズルから洗浄水を噴射させて被洗浄物を洗浄する洗浄行程1を実行するよう構成したものであり、洗剤溶解行程の後に排水および給水を行わないことにより、洗浄の初期に高い洗剤濃度で強い汚れを効果的に洗浄することができる。また、洗浄ポンプを一方向に回転させる動作を間欠的に行うことにより、洗浄水の水位が低い状態であってもエア噛みと呼ばれる現象の発生を防止して、洗浄力に低下や異音の発生を防止することができる。   According to a second aspect, in the first aspect, the control means performs cleaning from the cleaning nozzle by intermittently performing an operation of rotating the cleaning pump in one direction without draining and supplying water after the detergent dissolution process. It is configured to execute the cleaning process 1 in which water is sprayed to clean the object to be cleaned. By not draining and supplying water after the detergent dissolution process, strong stains can be obtained at a high detergent concentration at the initial stage of cleaning. Can be cleaned. In addition, by intermittently rotating the cleaning pump in one direction, the phenomenon called air biting can be prevented even when the cleaning water level is low, and the cleaning power is reduced or abnormal noise is detected. Occurrence can be prevented.

第3の発明は、上記第2の発明において、制御手段は、洗浄行程1の後に追加給水を行い、洗浄ポンプを一方向に回転させる動作を連続的に行うことで洗浄ノズルから洗浄水を噴射させて被洗浄物を洗浄する洗浄行程2を実行するよう構成したものであり、豊富な量の洗浄水を強力に被洗浄物に噴射することができるので、機械的に強力な洗浄を行うことができる。また、洗浄水中に存在する汚れ成分による食器類への再付着を効果的に防ぐことができる。さらに、洗浄行程1より低い洗浄濃度で洗浄行程の最終行程を行うことにより、次行程であるすすぎ行程でのすすぎを容易にすることができる。   In a third aspect based on the second aspect, the control means performs additional water supply after the cleaning step 1 and injects cleaning water from the cleaning nozzle by continuously performing an operation of rotating the cleaning pump in one direction. The cleaning process 2 for cleaning the object to be cleaned is performed, and a large amount of cleaning water can be strongly sprayed onto the object to be cleaned, so that mechanically powerful cleaning is performed. Can do. In addition, it is possible to effectively prevent reattachment to tableware due to dirt components present in the wash water. Furthermore, by performing the final step of the cleaning step at a cleaning concentration lower than the cleaning step 1, it is possible to facilitate rinsing in the rinsing step that is the next step.

第4の発明は、上記第1〜第3の発明において、洗浄ポンプの吸い込み口近傍に洗剤投入口を設けたものであり、洗浄ポンプの駆動により機械力を給水された水と洗剤に与えることが可能となりすばやく攪拌することができるため、より早く洗剤が溶け込んだ洗浄水をつくることができるとともに、洗剤溶解行程での洗剤の溶け残りを防ぐことができる。   According to a fourth aspect of the present invention, in the first to third aspects of the present invention, a detergent inlet is provided in the vicinity of the suction port of the cleaning pump, and mechanical power is supplied to the supplied water and detergent by driving the cleaning pump. Therefore, it is possible to make the washing water in which the detergent is dissolved more quickly and to prevent the detergent from being undissolved in the detergent dissolving process.

以下、本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、従来例と同じ構成のものは同一符号を付して説明を省略する。また、本実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described 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. Further, the present invention is not limited by the present embodiment.

(実施の形態1)
図1および図2に示すように、制御装置16は、運転コースなどを設定する入力手段25と、マイクロコンピュータなどで構成し、入力手段25の設定に基づいて洗浄、すすぎ、乾燥などの行程を逐次制御する制御手段17を備えている。ここで、制御手段17は、洗浄行程、すすぎ行程、加熱すすぎ行程、乾燥行程の順に行程を制御する。
(Embodiment 1)
As shown in FIGS. 1 and 2, the control device 16 includes an input unit 25 for setting an operation course and the like, and a microcomputer, and performs a process such as cleaning, rinsing, and drying based on the setting of the input unit 25. Control means 17 for sequentially controlling is provided. Here, the control means 17 controls the process in the order of the cleaning process, the rinsing process, the heating rinsing process, and the drying process.

洗浄行程は、洗剤溶解行程と洗浄行程1、洗浄行程2に分かれ、洗剤溶解行程は洗浄行程2の水位よりも低くしており、洗浄ポンプ9の運転は洗剤溶解行程においては正逆回転させて洗剤を充分に溶解して洗剤濃度の高い一定密度の洗浄水を生成し、その水位のまま洗浄行程1へ移行し、洗浄ポンプ9を間欠運転させ、洗浄行程1の最初から濃度の高い洗浄液を食器類5に噴射する。この洗浄行程1においては、ヒータ8に間欠通電して洗浄水を加熱する。   The cleaning process is divided into a detergent dissolving process, a cleaning process 1, and a cleaning process 2. The detergent dissolving process is lower than the water level in the cleaning process 2, and the operation of the cleaning pump 9 is rotated forward and backward in the detergent dissolving process. The detergent is dissolved sufficiently to produce a constant density washing water having a high detergent concentration, and the water level is shifted to the washing step 1, and the washing pump 9 is operated intermittently. Spray into tableware 5 In this cleaning step 1, the heater 8 is intermittently energized to heat the cleaning water.

続いて行われる洗浄行程2においては、洗浄行程1の洗浄水を排水ポンプ13によって排水することなく、追加給水し、洗浄ポンプ9を連続運転し、引き続き洗剤の溶け込んだ洗浄水で食器類5を洗浄する。この洗浄行程2においては、ヒータ8に連続通電して洗浄水を加熱する。   In the subsequent washing step 2, the washing water of the washing step 1 is not drained by the drain pump 13, but additional water is supplied, the washing pump 9 is continuously operated, and the dishes 5 are continuously washed with the washing water in which the detergent is dissolved. Wash. In the cleaning process 2, the heater 8 is energized continuously to heat the cleaning water.

なお、本実施の形態では、洗浄行程として、洗剤溶解行程、洗浄行程1と洗浄行程2とを有するコースについて説明しているが、洗浄行程2はなくてもよく、この場合を高濃度コースと呼ぶ。   In the present embodiment, the course having the detergent dissolution process, the cleaning process 1 and the cleaning process 2 is described as the cleaning process. However, the cleaning process 2 may not be provided, and this case is referred to as a high concentration course. Call.

食器かご6は、フライパン、ボール、おたまなどの調理器具などをセットすることができる大きさを有するものである。一般的に、これらの調理器具は油汚れ、デンプン汚れなどの汚れ付着量が、皿などの一般食器よりも多く、またこびりつく場合も多く、汚れが強いと言える。   The tableware basket 6 has a size capable of setting cooking utensils such as a frying pan, a ball, and a tama. In general, these cooking utensils have a larger amount of dirt such as oil stains and starch stains than ordinary dishes such as dishes, and are often sticky.

一般的に、洗浄能力は、洗剤の濃度、洗浄水の持つ熱、洗浄水噴射による機械力などに依存する。本発明による食器洗い機のコースは、この内、特に、洗剤の濃度を、洗剤溶解行程にて洗剤を早期に溶解し高い濃度の洗浄液をつくり、洗浄行程1で食器類の汚れを高い濃度で洗浄することにより、従来の標準コースに比べて、洗剤を溶解する時間を短縮でき強い汚れを素早く効果的に除去することができ、大きく洗浄性能を上げることができる。   In general, the cleaning ability depends on the concentration of the detergent, the heat of the cleaning water, the mechanical force by the cleaning water jet, and the like. In the course of the dishwasher according to the present invention, in particular, the concentration of the detergent is dissolved in the detergent dissolution process at an early stage to produce a high concentration cleaning liquid. In the cleaning process 1, the dishes are cleaned with a high concentration. By doing so, compared with the conventional standard course, the time for dissolving the detergent can be shortened, strong dirt can be removed quickly and effectively, and the cleaning performance can be greatly improved.

上記構成において動作、作用を説明する。図3は洗剤溶解行程の動作を、図4は洗浄行程1の動作を、図5は洗浄行程2の動作をそれぞれ示している。使用者は、食器かご6に食器類5をセットし、洗剤を所定量入れ、扉3を閉め、入力手段25の電源スイッチ25aをオンし、スタートボタン25bを押すことで運転を開始すると洗浄行程が行われる。   The operation and action of the above configuration will be described. 3 shows the operation of the detergent dissolution process, FIG. 4 shows the operation of the cleaning process 1, and FIG. 5 shows the operation of the cleaning process 2. The user sets the tableware 5 in the tableware basket 6, puts a predetermined amount of detergent, closes the door 3, turns on the power switch 25a of the input means 25, and starts the operation by pressing the start button 25b. Is done.

洗浄行程の最初に行われる洗剤溶解行程では、図3のステップ30にて運転を開始すると、ステップ31にて給水弁12を開いて最後に行われる洗浄行程2の水位より低く設定した所定水位まで給水し、ステップ32にて洗浄ポンプ9を間欠的に正逆交互に回転させて洗浄水と洗剤を撹拌させ洗剤を溶解させるとともにヒータ8に間欠通電させて洗浄水を加熱する。   In the detergent dissolution process performed at the beginning of the cleaning process, when the operation is started at step 30 in FIG. 3, the water supply valve 12 is opened at step 31 to a predetermined water level set lower than the water level of the cleaning process 2 performed last. Water is supplied, and in step 32, the washing pump 9 is intermittently rotated alternately forward and reverse to stir the washing water and the detergent to dissolve the detergent, and the heater 8 is intermittently energized to heat the washing water.

このとき、洗浄ポンプ9は正逆回転をそれぞれ短時間間欠的に繰り返す動作を行うことにより、正方向に一定して洗浄水が流れる場合よりも短時間で充分に洗剤を溶解させるとともに、均一な一定濃度の洗剤が溶け込んだ洗浄水を生成することができる。具体的には、洗浄ポンプ9は2秒正方向回転−5秒停止−2秒逆方向回転−5秒停止のような間欠運転を行うのがいわゆるエア噛みを発生させずに効率よく洗剤を溶解させるのに好適である。   At this time, the cleaning pump 9 performs the operation of repeating the forward and reverse rotations intermittently for a short time, so that the detergent can be sufficiently dissolved in a shorter time than the case where the cleaning water flows in a constant direction and the uniform. Wash water in which a certain concentration of detergent is dissolved can be generated. Specifically, the cleaning pump 9 performs intermittent operation such as 2 seconds forward rotation-5 seconds stop-2 seconds reverse rotation-5 seconds stop so as to efficiently dissolve the detergent without causing so-called air chewing. It is suitable for making it.

ステップ33にて経過時間が所定の時間以上になると、洗剤溶解行程を終了して洗浄行程1へ進む。   When the elapsed time exceeds the predetermined time in step 33, the detergent dissolution process is terminated and the process proceeds to the cleaning process 1.

洗浄行程1では、図4のステップ40にて運転を開始すると、給水排水せずに、ステッ
プ41にて洗浄ポンプ9を一方向に間欠動作させて洗浄ノズル4より食器類5に向けて洗浄水を噴射するとともに、ヒータ8に間欠通電して洗浄水を加熱する。ステップ42にて経過時間が所定時間以上になると、洗浄行程1を終了してステップ43へ進み、洗浄行程2へ進む。
In the cleaning process 1, when the operation is started in step 40 of FIG. 4, the water is not drained and the cleaning pump 9 is intermittently operated in one direction in step 41, and the cleaning water is directed toward the dishes 5 from the cleaning nozzle 4. And the cleaning water is heated by intermittently energizing the heater 8. When the elapsed time is equal to or longer than the predetermined time in step 42, the cleaning process 1 is finished, the process proceeds to step 43, and the process proceeds to cleaning process 2.

洗浄行程2では、図5のステップ50にて運転を開始すると、ステップ51にて給水弁12を開いて所定時間追加給水し、標準コースの洗浄行程の水位と同じ水位とし、ステップ52にて洗浄ポンプ9を連続動作させて洗浄ノズル4より食器類5に向けて洗浄水を噴射するとともに、ヒータ8に連続通電して洗浄水を加熱する。   In the cleaning process 2, when the operation is started in Step 50 of FIG. 5, the water supply valve 12 is opened in Step 51 and additional water is supplied for a predetermined time, the water level is the same as the water level in the cleaning process of the standard course, and the cleaning is performed in Step 52. The pump 9 is continuously operated to inject cleaning water from the cleaning nozzle 4 toward the dishes 5, and the heater 8 is energized continuously to heat the cleaning water.

ステップ53にて洗浄水の温度が所定温度以上になると、ステップ54にてヒータ8をオフする。ステップ55にて経過時間が所定時間以上になるとステップ56へ進み、排水ポンプ13をオンして排水し、ステップ57にて次行程に進む。   When the temperature of the washing water becomes equal to or higher than the predetermined temperature in step 53, the heater 8 is turned off in step 54. When the elapsed time exceeds the predetermined time in step 55, the process proceeds to step 56, the drain pump 13 is turned on and drained, and the process proceeds to the next process in step 57.

その後、すすぎ行程と加熱すすぎ行程を行い、乾燥行程を経て動作を終了する。   Thereafter, a rinsing process and a heating rinsing process are performed, and the operation is finished through a drying process.

以上のように、本発明にかかる食器洗い機は、水位検知手段14が水位を検知すると給水弁12を閉じて洗浄槽1内への給水を停止し、洗剤溶解行程を行い洗浄ポンプ9の正逆回転交互の間欠運転を開始するため、洗浄行程1における洗浄水の洗剤濃度を高くすることを容易に実現することができ、これにより、洗剤を早期に溶解させることにより従来に比べてより早く強い汚れに対して洗剤の作用力を大きくすることができ、汚れを素早く効果的に除去することができて、洗浄能力を大幅に向上することができる。   As described above, in the dishwasher according to the present invention, when the water level detecting means 14 detects the water level, the water supply valve 12 is closed to stop the water supply into the washing tank 1, the detergent dissolution process is performed, and the washing pump 9 is reversed. Since the intermittent rotation operation is started, it is possible to easily increase the detergent concentration of the washing water in the washing process 1, and thereby, the detergent is dissolved at an early stage and thereby stronger than before. The action force of the detergent on the dirt can be increased, the dirt can be removed quickly and effectively, and the cleaning ability can be greatly improved.

なお、圧力検知手段を用いて水位検知手段14を構成し、水位を多段階に検知すれば、洗浄水中の洗剤濃度を最適なものに精度よく容易に実現することができる。   In addition, if the water level detection means 14 is comprised using a pressure detection means, and a water level is detected in multiple steps, the detergent density | concentration in washing water can be easily implement | achieved accurately and accurately.

また、水位検知手段14が水位を検知する前において、給水弁12の通電を所定時間で切ることによっても、洗剤溶解行程あるいは洗浄行程1において洗浄行程2よりも低い水位を容易に実現できる。   Further, by turning off the water supply valve 12 for a predetermined time before the water level detecting means 14 detects the water level, a water level lower than that in the cleaning step 2 can be easily realized in the detergent dissolving step or the cleaning step 1.

さらに、本発明の洗浄行程1における水位を標準コースの洗浄行程における水位より、より一層低くすれば、さらに高い洗剤濃度で洗浄することができ、きわめて高い洗浄効果を得ることができる。   Furthermore, if the water level in the cleaning step 1 of the present invention is made much lower than the water level in the cleaning step of the standard course, cleaning can be performed with a higher detergent concentration, and an extremely high cleaning effect can be obtained.

このような場合、洗浄行程1において、洗浄ポンプ9は2秒運転−5秒停止のような間欠運転を行う。2秒程度であれば、洗浄水中に含まれる洗剤と汚染から生じる泡を、洗浄ポンプ9が吸い込むことにより、洗浄ポンプ9の吐出圧力が低下することを避けることができ、所定の吐出圧力で食器類5に洗浄水を噴射することができ、高い洗剤濃度の効果を最大限に生かした洗浄を行うことができる。また、洗浄ポンプ9が泡を吸い込むことによって生じる異音の発生も抑えることができる。   In such a case, in the cleaning process 1, the cleaning pump 9 performs an intermittent operation such as a 2-second operation and a 5-second stop. If it is about 2 seconds, it can avoid that the discharge pressure of the washing pump 9 falls because the washing pump 9 inhales the detergent contained in washing water, and the bubble which arises from contamination, and tableware with predetermined | prescribed discharge pressure can be avoided. Washing water can be sprayed onto the class 5, and washing can be performed making the best use of the effect of high detergent concentration. Moreover, generation | occurrence | production of the noise which arises when the washing pump 9 inhales foam can also be suppressed.

また、5秒停止することにしているが、この時間は洗浄ノズル4から噴射された洗浄水や洗浄ポンプ9から洗浄ノズル4に至る経路の途中の洗浄水を洗浄槽1の排水口10付近に戻すために必要な時間で、3秒以下にすると、排水口10付近に溜まる洗浄水が不足し、洗浄ポンプ9が洗浄水を吸い込む際に泡や空気も同時に吸い込み、いわゆるエア噛みという現象が発生し、異音を発生するので、5秒程度に設定するのが好適である。これは、ほぼ同水位で行う洗剤溶解行程における5秒停止についても同じ理由によるものである。   In addition, the cleaning water is stopped for 5 seconds. During this time, the cleaning water sprayed from the cleaning nozzle 4 and the cleaning water in the course of the path from the cleaning pump 9 to the cleaning nozzle 4 are placed near the drain 10 of the cleaning tank 1. If it takes less than 3 seconds for the return time, there is not enough washing water collected near the drain port 10, and when the washing pump 9 sucks the washing water, bubbles and air are sucked at the same time, so-called air biting occurs. However, since abnormal noise is generated, it is preferable to set it to about 5 seconds. This is due to the same reason for stopping for 5 seconds in the detergent dissolution process performed at substantially the same water level.

洗剤溶解行程において、洗浄ポンプ9の正逆回転や間欠運転と連動させて、ヒータ8への通電も間欠としている。これはヒータ8連続通電中に洗浄ポンプ9を間欠運転すると、
洗浄ポンプ9への突入電流により、食器洗い機全体の電流量が一時的に大きくなり、使用家庭のブレーカが落ちる恐れがあるからである。洗浄ポンプ9が突入電流の小さいモータを使用し、ブレーカが落ちる恐れがない場合は、ヒータ8へ連続通電した方が、洗浄水の温度が早く上がり洗浄力が向上するので望ましい。
In the detergent dissolution process, the energization of the heater 8 is also intermittent in conjunction with forward / reverse rotation and intermittent operation of the cleaning pump 9. This is because when the cleaning pump 9 is intermittently operated while the heater 8 is continuously energized,
This is because the current amount of the entire dishwasher temporarily increases due to the inrush current to the washing pump 9, and the breaker in the household used may fall. If the cleaning pump 9 uses a motor with a small inrush current and there is no risk of the breaker dropping, it is desirable to continuously energize the heater 8 because the temperature of the cleaning water rises faster and the cleaning power improves.

このように、高い洗剤濃度で強い汚れを効果的に洗浄する洗浄行程1の後に、洗浄水の量を増加した状態で洗浄する洗浄行程2を設けることにより、洗浄行程1で多量に発生した洗浄水中の汚れ成分濃度をうすめることができ、洗浄水中に存在する汚れ成分による食器類5への再付着を効果的に防ぐことができ、食器類5の洗浄仕上がりをより一層向上することができる。また、洗浄行程1より低い洗浄濃度で洗浄行程の最終行程を行うことにより、次行程であるすすぎ行程でのすすぎを容易にすることができる。   In this way, after the cleaning process 1 for effectively cleaning strong dirt at a high detergent concentration, the cleaning process 2 for cleaning with an increased amount of cleaning water is provided, so that a large amount of cleaning is generated in the cleaning process 1. The dirt component concentration in the water can be reduced, the redeposition to the tableware 5 due to the dirt component present in the washing water can be effectively prevented, and the washing finish of the tableware 5 can be further improved. Further, by performing the final process of the cleaning process at a cleaning concentration lower than the cleaning process 1, it is possible to facilitate rinsing in the rinsing process as the next process.

なお、洗浄行程1にて、洗浄ポンプ9を間欠運転するようにしているが、洗浄ポンプ9が洗浄水中に含まれる泡を吸い込むことがなく、泡を吸い込むことによる洗浄ポンプ9の吐出圧力の低下がなければ、連続運転してもよいことはいうまでもない。   Although the cleaning pump 9 is intermittently operated in the cleaning process 1, the cleaning pump 9 does not suck in bubbles contained in the cleaning water, and the discharge pressure of the cleaning pump 9 is reduced by sucking the bubbles. Needless to say, if there is no, continuous operation may be possible.

また、ヒータ8の表面温度などの安全性対策のため洗剤溶解行程や洗浄行程1にて、ヒータ8を間欠通電するようにしているが、通電しないようにしてもよい。   In addition, although the heater 8 is intermittently energized in the detergent dissolution process and the cleaning process 1 for safety measures such as the surface temperature of the heater 8, it may not be energized.

以上のように、洗浄行程の最初に洗剤溶解行程を設けることにより低い水位にて早期に洗剤濃度の高い一定密度の洗浄水にすることができ、調理器具などの汚れが強いものを洗浄する場合において洗浄ノズル4からの噴射洗浄水が当初から洗浄濃度の高い洗浄水のため汚れに対して効果的に作用させることが可能となり、より高い洗浄効果を得ることができる。   As described above, by providing a detergent dissolution process at the beginning of the cleaning process, it is possible to quickly produce a constant density cleaning water with a high detergent concentration at a low water level, and when washing highly contaminated items such as cooking utensils In this case, since the jet cleaning water from the cleaning nozzle 4 is cleaning water having a high cleaning concentration from the beginning, it is possible to effectively act on dirt, and a higher cleaning effect can be obtained.

また、本発明の食器洗い機は、図6に示すように、洗剤投入口60を洗浄ポンプ9の吸い込み口61近傍に設けてある。以下、この構成について詳しく説明する。   In the dishwasher of the present invention, as shown in FIG. 6, a detergent charging port 60 is provided in the vicinity of the suction port 61 of the cleaning pump 9. Hereinafter, this configuration will be described in detail.

排水口10は洗浄槽1の前方内底部に備えられ、その上面開口部10aには残滓フィルタ11が着脱自在に載置されている。残滓フィルタ11に溜まった残滓を取り除く時には使用者が扉3を開いて残滓フィルタ11を機外に取り出す。また、排水口10の上面開口部10aには、筒状に形成された洗剤を投入する洗剤投入口60が上方に延びるように備えられており、洗剤の投入が容易に行えるようにしてある。使用者が扉3を開いてこの洗剤投入口60に上方から洗剤を投入すると、洗剤は洗剤投入口60内を落下し排水口10内に導かれ貯留される。また、洗浄ポンプ9は吸い込み口61で排水口10の一側面に連通されている。   The drain port 10 is provided in the front inner bottom part of the washing tank 1, and the residue filter 11 is detachably mounted in the upper surface opening part 10a. When removing the residue accumulated in the residue filter 11, the user opens the door 3 and removes the residue filter 11 from the machine. Further, the upper surface opening 10a of the drain port 10 is provided with a detergent inlet 60 for feeding a detergent formed in a cylindrical shape so as to extend upward, so that the detergent can be easily introduced. When the user opens the door 3 and puts detergent into the detergent inlet 60 from above, the detergent falls in the detergent inlet 60 and is guided and stored in the drain outlet 10. Further, the cleaning pump 9 is communicated with one side surface of the drain port 10 through a suction port 61.

このように、洗剤投入口60を洗浄ポンプ9の吸い込み口61の近傍に設けることにより、洗剤を洗浄槽1内に投入して運転を開始し、洗浄水が供給されて洗浄ポンプ9の運転が開始されると、洗浄ポンプ9の回転翼62の回転により洗剤に機械力をよりすばやく与えることができるため、より早く洗剤が溶け込んだ洗浄水をつくることができるとともに、洗剤溶解行程での洗剤の溶け残りを防ぐことができる。   Thus, by providing the detergent inlet 60 in the vicinity of the suction inlet 61 of the cleaning pump 9, the detergent is introduced into the cleaning tank 1 to start the operation, and the cleaning water is supplied and the operation of the cleaning pump 9 is started. When started, since the mechanical force can be given to the detergent more quickly by the rotation of the rotary blade 62 of the washing pump 9, it is possible to create washing water in which the detergent is dissolved earlier, and the detergent in the detergent dissolution process. Undissolved residue can be prevented.

以上のように、本発明の食器洗い機は、低い水位にて早期に洗剤濃度の高い一定密度の洗浄水にすることができ、調理器具などの汚れが強いものを洗浄する場合において洗浄ノズルからの噴射洗浄水が当初から洗浄濃度の高い洗浄水とすることができるため、汚れに対して効果的に作用させることが可能となり、より高い洗浄効果を得ることができるので、洗剤を溶け込ませた洗浄水を噴射して食器類を洗浄する食器洗い機等として有用である。   As described above, the dishwasher of the present invention can be made into a constant density washing water with a high detergent concentration at a low water level at an early stage. Since the spray water can be washed water with a high cleaning concentration from the beginning, it is possible to effectively act on dirt, and a higher cleaning effect can be obtained. It is useful as a dishwasher that jets water to wash dishes.

本発明の実施の形態1における食器洗い機の縦断面図The longitudinal cross-sectional view of the dishwasher in Embodiment 1 of this invention 同食器洗い機のブロック回路図Block diagram of the dishwasher 同食器洗い機の洗剤溶解行程での動作フローチャートFlow chart of the operation of the dishwasher in the detergent dissolution process 同食器洗い機の洗浄行程1の動作フローチャートOperation flowchart of the washing process 1 of the dishwasher 同食器洗い機の洗浄行程2の動作フローチャートOperation flowchart of washing process 2 of the dishwasher 同食器洗い機の要部縦断面図Main section of the dishwasher 従来の食器洗い機の縦断面図Vertical section of a conventional dishwasher 従来の食器洗い機のブロック回路図Block diagram of a conventional dishwasher 従来の食器洗い機の操作部の拡大正面図Enlarged front view of the operation part of a conventional dishwasher 従来の食器洗い機の洗浄行程1の動作フローチャートFlowchart of operation of washing step 1 of a conventional dishwasher 従来の食器洗い機の洗浄行程2の動作フローチャートFlow chart of the operation of the washing process 2 of the conventional dishwasher

1 洗浄槽
4 洗浄ノズル
5 食器類(被洗浄物)
8 ヒータ
9 洗浄ポンプ
12 給水弁(給水手段)
14 水位検知手段
16 制御装置
17 制御手段
25 入力手段
1 Washing tank 4 Washing nozzle 5 Tableware (objects to be washed)
8 Heater 9 Washing pump 12 Water supply valve (water supply means)
14 Water level detection means 16 Control device 17 Control means 25 Input means

Claims (4)

食器類等の被洗浄物を収容する洗浄槽と、被洗浄物に洗浄水を噴射する洗浄ノズルと、前記洗浄ノズルに洗浄水を圧送する洗浄ポンプと、前記洗浄槽内に給水を行う給水手段と、前記洗浄槽内の水位を検知する水位検知手段と、洗浄、すすぎ、および乾燥の各行程を制御する制御手段とを備え、前記制御手段は、洗浄行程の最初に、投入された洗剤を溶解させる洗剤溶解行程を実行するとともに、その洗剤溶解行程において、前記水位検知手段と連係して前記給水手段を制御して洗剤溶解行程より後に実行する行程の水位よりも低い水位に給水を行うとともに、前記洗浄ポンプを正逆回転させるよう制御する食器洗い機。 A cleaning tank for storing objects to be cleaned such as tableware, a cleaning nozzle for injecting cleaning water to the objects to be cleaned, a cleaning pump for pumping cleaning water to the cleaning nozzle, and a water supply means for supplying water into the cleaning tank And a water level detecting means for detecting the water level in the washing tank, and a control means for controlling each of the washing, rinsing and drying processes, wherein the control means removes the introduced detergent at the beginning of the washing process. In addition to performing a detergent dissolution process to be dissolved, in the detergent dissolution process, the water supply means is controlled in conjunction with the water level detection means to supply water at a level lower than the water level of the process executed after the detergent dissolution process. A dishwasher that controls the washing pump to rotate forward and backward. 制御手段は、洗剤溶解行程の後に排水および給水を行わずに、洗浄ポンプを一方向に回転させる動作を間欠的に行うことで洗浄ノズルから洗浄水を噴射させて被洗浄物を洗浄する洗浄行程1を実行する請求項1記載の食器洗い機。 The control means does not perform drainage and water supply after the detergent dissolution process, and intermittently performs an operation of rotating the cleaning pump in one direction so that the cleaning water is jetted from the cleaning nozzle to clean the object to be cleaned. The dishwasher according to claim 1, wherein 1 is executed. 制御手段は、洗浄行程1の後に追加給水を行い、洗浄ポンプを一方向に回転させる動作を連続的に行うことで洗浄ノズルから洗浄水を噴射させて被洗浄物を洗浄する洗浄行程2を実行する請求項2記載の食器洗い機。 The control means performs additional cleaning water after the cleaning process 1, and continuously performs an operation of rotating the cleaning pump in one direction to inject the cleaning water from the cleaning nozzle to execute the cleaning process 2 for cleaning the object to be cleaned. The dishwasher according to claim 2. 洗浄ポンプの吸い込み口近傍に洗剤投入口を設けた請求項1〜3のいずれか1項記載の食器洗い機。 The dishwasher according to any one of claims 1 to 3, wherein a detergent inlet is provided in the vicinity of the suction port of the washing pump.
JP2009008586A 2009-01-19 2009-01-19 Dishwasher Pending JP2010162261A (en)

Priority Applications (1)

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Publications (1)

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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014110886A (en) * 2012-11-01 2014-06-19 Panasonic Corp Dishwasher
JP2014110885A (en) * 2012-11-01 2014-06-19 Panasonic Corp Dishwasher
CN109431423A (en) * 2018-11-05 2019-03-08 珠海格力电器股份有限公司 A kind of dish washer control method, control system, dish-washing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014110886A (en) * 2012-11-01 2014-06-19 Panasonic Corp Dishwasher
JP2014110885A (en) * 2012-11-01 2014-06-19 Panasonic Corp Dishwasher
CN109431423A (en) * 2018-11-05 2019-03-08 珠海格力电器股份有限公司 A kind of dish washer control method, control system, dish-washing machine

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