JP2007117554A - Dishwasher - Google Patents

Dishwasher Download PDF

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Publication number
JP2007117554A
JP2007117554A JP2005316116A JP2005316116A JP2007117554A JP 2007117554 A JP2007117554 A JP 2007117554A JP 2005316116 A JP2005316116 A JP 2005316116A JP 2005316116 A JP2005316116 A JP 2005316116A JP 2007117554 A JP2007117554 A JP 2007117554A
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Japan
Prior art keywords
washing
dishwasher
heat
peltier element
drying
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Granted
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JP2005316116A
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Japanese (ja)
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JP4544131B2 (en
Inventor
Masayoshi Kamisaki
昌芳 上▲崎▼
Katsuhiko Sumiya
勝彦 角谷
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2005316116A priority Critical patent/JP4544131B2/en
Priority to TW095137499A priority patent/TW200727848A/en
Priority to KR1020060105588A priority patent/KR100770072B1/en
Priority to CNB2006101429185A priority patent/CN100558284C/en
Priority to CNU2006201369847U priority patent/CN201036546Y/en
Publication of JP2007117554A publication Critical patent/JP2007117554A/en
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Publication of JP4544131B2 publication Critical patent/JP4544131B2/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/483—Drying arrangements by using condensers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Washing And Drying Of Tableware (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher achieving high energy saving performance and usability by effectively using a heat pump unit or a Peltier element. <P>SOLUTION: A heat pump unit is arranged inside a dishwasher body. A heat exchanger incorporating the heat pump unit and exchanging heat with washing water in a washing tub is controlled and switched so as to work as a condenser in at least one of processes of washing, or heating and rinsing, and work as an evaporator in a drying process. Alternatively, the Peltier element can be used instead of the heat pump unit for achieving the dishwasher having the same effect. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、洗浄ノズルより食器類に向けて洗浄水を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 cleaning dishes by spraying washing water from the washing nozzle toward the dishes.

従来、この種の食器洗い機は、図４に示すように構成されていた。以下、その構成について説明する。図４に示すように、食器洗い機本体１は、内部に洗浄槽２が設けられており、この洗浄槽２の底部に排水孔３が設けられ、この排水孔３の側部に連通したポンプ室にモータ４によって駆動される洗浄ポンプ５が配設され、洗浄ポンプ５により洗浄水を洗浄槽２の内部に循環させるように構成されている。この循環は、洗浄水が排水孔３から洗浄ポンプ５に吸い込まれ、洗浄ポンプ５より洗浄槽２の内底部に配設された洗浄ノズル６に供給され、この洗浄ノズル６から食器類７に向けて噴射され、食器類７を洗浄した後、再び排水孔３に戻るという経路で行われる。   Conventionally, this type of dishwasher has been configured as shown in FIG. Hereinafter, the configuration will be described. As shown in FIG. 4, the dishwasher main body 1 is provided with a washing tub 2 inside, a drain hole 3 is provided at the bottom of the washing tub 2, and a pump chamber communicated with the side of the drain hole 3. A cleaning pump 5 driven by the motor 4 is disposed, and the cleaning pump 5 is configured to circulate cleaning water inside the cleaning tank 2. In this circulation, washing water is sucked into the washing pump 5 from the drain hole 3 and is supplied from the washing pump 5 to the washing nozzle 6 disposed in the inner bottom portion of the washing tank 2, from the washing nozzle 6 toward the dishes 7. After the tableware 7 is washed, the process returns to the drain hole 3 again.

洗浄ノズル６と洗浄槽２の底部との間には、洗浄水加熱用のヒータ８が配設されている。また、洗浄ノズル６の上方には、食器類７を整然と配置することで食器類７に対して洗浄水を効果的に噴射し、食器類７の洗浄を効率的に行えるように構成した食器かご９が設置されている。   A cleaning water heater 8 is disposed between the cleaning nozzle 6 and the bottom of the cleaning tank 2. In addition, the tableware basket is configured so that the tableware 7 is arranged in an orderly manner above the cleaning nozzle 6 so that cleaning water can be effectively sprayed onto the tableware 7 and the tableware 7 can be cleaned efficiently. 9 is installed.

また、洗浄槽２は前方に開口しており、その前面部に、前方に開閉自在な蓋１０を取り付けられている。洗浄ポンプ５は、モータ４を逆回転すると、排水孔３から洗浄水を吸い込み、排水ホース１１を通して洗浄水を機外に排出するように構成されている。   Moreover, the washing tank 2 is opened forward, and a lid 10 that can be opened and closed forward is attached to the front surface thereof. When the motor 4 rotates in the reverse direction, the cleaning pump 5 sucks the cleaning water from the drain hole 3 and discharges the cleaning water to the outside through the drain hose 11.

また、ヒータ８に間欠的に通電し、乾燥ファン１２により機外から洗浄槽２内に取り込まれた空気を加熱して食器類７に当てることで、食器類７に付着した水分を蒸発せしめて乾燥させることも可能であるよう構成されている（例えば、特許文献１参照）。
特開平９−１０３４０２号公報 Further, the heater 8 is energized intermittently, and the air taken into the washing tub 2 from outside the apparatus is heated by the drying fan 12 and applied to the tableware 7 to evaporate the water adhering to the tableware 7. It is comprised so that it can also be made to dry (for example, refer patent document 1).
JP-A-9-103402

上記のような構成の従来の食器洗い機では、食器類７を洗うときに洗浄水を加熱するための熱量は全てヒータ８の発熱によるものであり、消費電力分しか熱量として利用されていなかった。また、食器類７を乾燥せしめるときに発生した水蒸気は全て機外に排出していたので、食器洗い機本体１が設置されている台所の室内空気の湿度が上昇し、不快指数の上昇を招くという課題があった。   In the conventional dishwasher configured as described above, the amount of heat for heating the washing water when washing the dishes 7 is entirely due to the heat generated by the heater 8, and only the amount of power consumed is used as the amount of heat. Further, since all the water vapor generated when the dishes 7 are dried is exhausted outside the machine, the humidity of the indoor air in the kitchen where the dishwasher body 1 is installed increases, leading to an increase in discomfort index. There was a problem.

本発明は、上述の課題を解決するため、ヒートポンプユニットあるいはペルチエ素子をより効果的に用いることにより、より省エネルギ性が高く、使い勝手の良い食器洗い機を提供することを目的としている。   In order to solve the above-described problems, an object of the present invention is to provide a dishwasher that is more energy-saving and easy to use by more effectively using a heat pump unit or a Peltier element.

本発明の食器洗い機は、食器洗い機本体内に、ヒートポンプユニットを備え、前記ヒートポンプユニットを構成する、洗浄槽中の洗浄水と熱交換する熱交換器が、洗い、加熱すすぎ行程のうち少なくとも一方の行程においては凝縮器となり、また乾燥行程においては蒸発器となるよう切り替え制御するようにしたものである。   The dishwasher of the present invention includes a heat pump unit in the dishwasher body, and the heat exchanger that constitutes the heat pump unit and exchanges heat with the washing water in the washing tank is at least one of the washing and heating rinsing steps. Switching is controlled so that it becomes a condenser in the stroke and an evaporator in the drying stroke.

また、本発明の食器洗い機は、もう一つの解決手段として、食器洗い機本体内に、洗浄槽と、ペルチエ素子と、洗い、すすぎ、加熱すすぎ、乾燥の一連の行程を逐次制御するとともに前記ペルチエ素子に流す電流を制御する制御手段とを備え、前記ペルチエ素子を前記洗浄槽に接するよう構成するとともに、前記制御手段は、洗浄槽に接したペルチエ素子について、洗い、加熱すすぎ行程のうち少なくとも一方の行程においては発熱側となり、また乾燥行程においては吸熱側となるよう電流を切り替え制御するようにしたものである。   Further, the dishwasher of the present invention, as another solution, sequentially controls a washing tank, a Peltier element, a series of washing, rinsing, heat rinsing, and drying steps in the dishwasher body and the Peltier element. And a control means for controlling a current flowing through the cleaning tank, wherein the control means is configured to contact the cleaning tank, and the control means is configured to wash and heat at least one of the Peltier elements in contact with the cleaning tank. The current is switched and controlled to be on the heat generation side in the stroke and on the heat absorption side in the drying stroke.

これらの構成によると、洗い、加熱すすぎ行程時はヒートポンプユニットあるいはペルチエ素子により周囲の熱を洗浄水に移行することが可能となり、洗浄水の温度上昇に必要な消費電力量を少なく抑えることができる。また乾燥行程中は洗浄槽内の除湿を行うことが可能となり、機外へ排出する水蒸気量を少なく抑えることができるので、室内空気の湿度上昇を低く抑えることができ、使い勝手の良い食器洗い機を提供することができる。   According to these configurations, it becomes possible to transfer the surrounding heat to the washing water by the heat pump unit or the Peltier element during the washing and heating rinsing process, and the power consumption required for the temperature rise of the washing water can be reduced. . In addition, it is possible to dehumidify the washing tank during the drying process, and the amount of water vapor discharged to the outside of the machine can be suppressed to a low level. Can be provided.

本発明の食器洗い機によると、ヒートポンプユニットあるいはペルチエ素子をより効果的に用いることにより、より省エネルギ性が高く、使い勝手の良い食器洗い機を提供することができる。   According to the dishwasher of the present invention, by using the heat pump unit or the Peltier element more effectively, it is possible to provide a dishwasher that is more energy saving and easy to use.

本発明の請求項１に記載の発明は、食器洗い機本体内に、洗浄槽と、ヒートポンプユニットと、洗い、すすぎ、加熱すすぎ、乾燥の一連の行程を逐次制御する制御手段とを備え、前記制御手段は、前記ヒートポンプユニットを構成する、前記洗浄槽中の洗浄水と熱交換する熱交換器が、洗い、加熱すすぎ行程のうち少なくとも一方の行程においては凝縮器となり、また乾燥行程においては蒸発器となるよう切り替え制御することにより、洗い、加熱すすぎ行程時はヒートポンプユニットにより周囲の熱を洗浄水に移行することが可能となり、洗浄水の温度上昇に必要な消費電力量を少なく抑えることができる。また乾燥行程中は洗浄槽内の除湿を行うことが可能となり、機外へ排出する水蒸気量を少なく抑えることができるので、室内空気の湿度上昇を低く抑えることができ、使い勝手の良い食器洗い機を提供できる。   The invention according to claim 1 of the present invention comprises a washing tub, a heat pump unit, and a control means for sequentially controlling a series of steps of washing, rinsing, heating rinsing and drying in the dishwasher body, The heat exchanger that constitutes the heat pump unit and exchanges heat with the washing water in the washing tank is a condenser in at least one of the washing and heating rinsing steps, and an evaporator in the drying step. By controlling the switching so that it becomes, it becomes possible to transfer the ambient heat to the washing water by the heat pump unit during the washing and heating rinsing process, and the power consumption necessary for the temperature rise of the washing water can be reduced. . In addition, it is possible to dehumidify the washing tank during the drying process, and the amount of water vapor discharged to the outside of the machine can be suppressed to a low level. Can be provided.

請求項２に記載の発明は、上記請求項１に記載の発明において、洗浄槽中の洗浄水と熱交換する熱交換器は洗浄槽に接するよう構成したものであり、洗浄槽に穴をあける必要がないので、水漏れの恐れがない。また、食器洗い機内にヒートポンプユニットを１つの部品として組み込めるので、ものづくり作業性やサービスメンテナンス作業性の高い食器洗い機を実現できる。   The invention according to claim 2 is the invention according to claim 1, wherein the heat exchanger for exchanging heat with the washing water in the washing tank is configured to contact the washing tank, and a hole is formed in the washing tank. Since there is no need, there is no risk of water leakage. In addition, since the heat pump unit can be incorporated as a single component in the dishwasher, a dishwasher with high manufacturing workability and service maintenance workability can be realized.

請求項３に記載の発明は、上記請求項１または２に記載の発明において、乾燥用空気取り入れ口をヒートポンプユニット近傍に配したものであり、乾燥行程時においてヒートポンプユニットの凝縮器及び圧縮機から発生した熱を乾燥ファンにより洗浄槽内へ導くことができるので、乾燥用空気を加熱するために必要な消費電力量を低く抑えることができ、より省エネルギ性の高い食器洗い機を提供できる。   The invention according to claim 3 is the invention according to claim 1 or 2, wherein the drying air intake is arranged in the vicinity of the heat pump unit, and from the condenser and the compressor of the heat pump unit during the drying process. Since the generated heat can be guided into the washing tank by the drying fan, the amount of power consumption required to heat the drying air can be kept low, and a dishwasher with higher energy saving can be provided.

請求項４に記載の発明は、食器洗い機本体内に、洗浄槽と、ペルチエ素子と、洗い、すすぎ、加熱すすぎ、乾燥の一連の行程を逐次制御するとともに前記ペルチエ素子に流す電流を制御する制御手段とを備え、前記ペルチエ素子を前記洗浄槽に接するよう構成するとともに、前記制御手段は、洗浄槽に接したペルチエ素子について、洗い、加熱すすぎ行程のうち少なくとも一方の行程においては発熱側となり、また乾燥行程においては吸熱側となるよう電流を切り替え制御するものであり、洗い、加熱すすぎ行程時はペルチエ素子により周囲の熱を洗浄水に移行することが可能となり、洗浄水の温度上昇に必要な消費電力量を少なく抑えることができる。また乾燥行程中は洗浄槽内の除湿を行うことが可能となり、機外へ排出する水蒸気量を少なく抑えることができるので、室内空気の湿度上昇を低く抑えることができ、使い勝手の良い食器洗い機を提供できる。   The invention according to claim 4 is a control for controlling a current flowing through the Peltier element while sequentially controlling a series of steps of washing, rinsing, heating, rinsing and drying in the dishwasher body. The Peltier element is in contact with the cleaning tank, and the control means is for the Peltier element that is in contact with the cleaning tank, and is on the heat generation side in at least one of the washing and heating processes, Also, in the drying process, the current is switched and controlled so that it is on the heat absorption side. During the washing and heating rinse processes, the surrounding heat can be transferred to the washing water by the Peltier element, which is necessary for increasing the temperature of the washing water. Can reduce the amount of power consumption. In addition, it is possible to dehumidify the washing tank during the drying process, and the amount of water vapor discharged to the outside of the machine can be suppressed to a low level. Can be provided.

請求項５に記載の発明は、上記請求項４に記載の発明において、乾燥用空気取り入れ口をペルチエ素子近傍に配したものであり、乾燥行程時においてペルチエ素子の発熱側から発する熱を乾燥ファンにより洗浄槽内へ導くことができるので、乾燥用空気を加熱するために必要な消費電力量を低く抑えることができ、より省エネルギ性の高い食器洗い機を提供できる。   According to a fifth aspect of the present invention, in the invention according to the fourth aspect of the present invention, the drying air intake is arranged in the vicinity of the Peltier element, and the heat generated from the heat generating side of the Peltier element during the drying process is Therefore, the amount of power consumption required to heat the drying air can be kept low, and a dishwasher with higher energy savings can be provided.

以下、本発明の食器洗い機の実施の形態について、図１〜図３を参照して説明する。なお、図４を参照して説明した従来の食器洗い機と同じ構成要素は同一符号を付して説明を省略する。また、本発明は本実施の形態によって限定されるものではない。   Hereinafter, embodiments of the dishwasher of the present invention will be described with reference to FIGS. The same components as those of the conventional dishwasher described with reference to FIG. The present invention is not limited to the present embodiment.

（実施の形態１）
図１、図２に示すように、食器洗い機本体１内に設けられた洗浄槽１３の下方に、洗浄槽１３の後部側面下方に接する第１の熱交換器１４、洗浄槽１３に接しないように配置した第２の熱交換器１５、圧縮機１６、膨張弁１７、切換弁１８からなるヒートポンプユニット３０を配している。制御装置３１（制御手段）は、洗浄ポンプ５、ヒータ８、乾燥ファン１２、ヒートポンプユニット３０等を制御して、洗い、すすぎ、加熱すすぎ、乾燥の一連の行程を逐次制御する。 (Embodiment 1)
As shown in FIG. 1 and FIG. 2, the first heat exchanger 14 that is in contact with the lower side of the rear side of the washing tank 13 and the washing tank 13 are not contacted below the washing tank 13 provided in the dishwasher body 1. The heat pump unit 30 including the second heat exchanger 15, the compressor 16, the expansion valve 17, and the switching valve 18 arranged in the above is arranged. The control device 31 (control means) controls the washing pump 5, the heater 8, the drying fan 12, the heat pump unit 30, and the like, and sequentially controls a series of steps of washing, rinsing, heating rinsing, and drying.

次に、以上の構成の食器洗い機の動作、作用を説明する。食器かご９に食器類７を配置して洗浄槽１３内に収容し、運転を開始すると、洗浄ポンプ５が駆動され、加圧された洗浄水が洗浄ノズル６から食器類７へ噴射される。洗浄行程、加熱すすぎ行程においては、ヒータ８に通電がなされ、所定温度（洗浄行程：５５°Ｃ、加熱すすぎ行程：６７°Ｃ）まで洗浄水を加熱しながら、洗浄ノズル６からの噴射がなされる。   Next, the operation and action of the dishwasher having the above configuration will be described. When the tableware 7 is arranged in the tableware basket 9 and accommodated in the washing tank 13 and the operation is started, the washing pump 5 is driven, and pressurized washing water is jetted from the washing nozzle 6 to the tableware 7. In the cleaning process and the heating rinsing process, the heater 8 is energized and sprayed from the cleaning nozzle 6 while heating the cleaning water to a predetermined temperature (cleaning process: 55 ° C., heating rinsing process: 67 ° C.). The

この洗浄行程、加熱すすぎ行程においては、図１に示すように、ヒートポンプユニット３０のうち洗浄槽１３に接する第１の熱交換器１４が凝縮器となるよう切換弁１８が制御されている。これにより、圧縮機１６を駆動し、洗浄槽１３の下方の周囲空気に含まれる熱を、蒸発器となった第２の熱交換器１５で吸収し、第１の熱交換器１４より、洗浄槽１３内の洗浄水に伝熱して洗浄水を加熱することが可能となり、洗浄水の温度上昇に必要な消費電力量を少なく抑えることができる。   In this cleaning process and heating rinsing process, as shown in FIG. 1, the switching valve 18 is controlled so that the first heat exchanger 14 in contact with the cleaning tank 13 in the heat pump unit 30 becomes a condenser. Thereby, the compressor 16 is driven, and the heat contained in the ambient air below the washing tank 13 is absorbed by the second heat exchanger 15 serving as an evaporator, and is washed from the first heat exchanger 14. Heat can be transferred to the cleaning water in the tank 13 to heat the cleaning water, and the amount of power consumption required for increasing the temperature of the cleaning water can be reduced.

また、乾燥行程においては、図２に示すように、ヒートポンプユニット３０のうち洗浄槽１３に接する第１の熱交換器１４が蒸発器となるよう切換弁１８が制御されている。これにより、圧縮機１６を駆動し、第１の熱交換器１４が接している洗浄槽１３内面近傍において、洗浄槽１３内の空気が含む水蒸気を結露せしめ、除湿することが可能である。   In the drying process, as shown in FIG. 2, the switching valve 18 is controlled so that the first heat exchanger 14 in contact with the cleaning tank 13 in the heat pump unit 30 serves as an evaporator. As a result, the compressor 16 is driven, and water vapor contained in the air in the cleaning tank 13 can be condensed and dehumidified in the vicinity of the inner surface of the cleaning tank 13 with which the first heat exchanger 14 is in contact.

なお、第１の熱交換器１４が洗浄槽１３に接する場所は、図１、２のように洗浄槽１３の後部側面下方が熱効率の点から好ましいが、これに限られるものではなく、例えば底面であっても良い。洗浄槽１３の肉厚について、第１の熱交換器１４が接する部分を他の部分より薄く設定すると、熱伝達速度が増え効果的である。   The place where the first heat exchanger 14 is in contact with the cleaning tank 13 is preferably the lower side of the rear side surface of the cleaning tank 13 as shown in FIGS. 1 and 2 from the viewpoint of thermal efficiency. It may be. About the thickness of the washing tank 13, if the part which the 1st heat exchanger 14 contacts is set thinner than another part, a heat transfer rate will increase and it will be effective.

乾燥用空気を洗浄槽１３内に送る乾燥用ファン１２は、吸い込み口がヒートポンプユニット３０の近傍になるようダクト１９を備えている。これにより、乾燥行程中にヒートポンプユニットの第２の熱交換器１５及び圧縮機１６から発生する熱を乾燥用空気に取り込めるので、乾燥用空気を加熱するために必要な消費電力量を低く抑えることが可能となり、省エネルギ性に優れた食器洗い機とすることができる。   The drying fan 12 that sends the drying air into the cleaning tank 13 includes a duct 19 so that the suction port is in the vicinity of the heat pump unit 30. As a result, the heat generated from the second heat exchanger 15 and the compressor 16 of the heat pump unit during the drying process can be taken into the drying air, so that the power consumption required to heat the drying air is kept low. This makes it possible to provide a dishwasher with excellent energy savings.

（実施の形態２）
図３に示すように、本実施の形態では、実施の形態１のヒートポンプユニット３０の代わりに、洗浄槽２０の後背面の外側に接して、ペルチエ素子２１を配している。なお、食器洗い機としてのその他の構成は実施の形態１と同じであるので説明は省略する。 (Embodiment 2)
As shown in FIG. 3, in the present embodiment, a Peltier element 21 is arranged in contact with the outside of the rear back surface of the cleaning tank 20 instead of the heat pump unit 30 of the first embodiment. Since the other configuration as the dishwasher is the same as that of the first embodiment, the description thereof is omitted.

次に、以上の構成の食器洗い機の動作、作用を説明する。食器かご９に食器類７を配置して洗浄槽２０内に収容し、運転を開始すると、洗浄ポンプ５が駆動され、加圧された洗浄水が洗浄ノズル６から食器類７へ噴射される。   Next, the operation and action of the dishwasher having the above configuration will be described. When the tableware 7 is placed in the tableware basket 9 and accommodated in the washing tub 20 and the operation is started, the washing pump 5 is driven and pressurized washing water is jetted from the washing nozzle 6 to the tableware 7.

洗浄行程、加熱すすぎ行程においては、ヒータ８に通電がなされ、所定温度（洗浄行程：５５°Ｃ、加熱すすぎ行程：６７°Ｃ）まで洗浄水を加熱しながら、洗浄ノズル６からの噴射がなされる。   In the cleaning process and the heating rinsing process, the heater 8 is energized and sprayed from the cleaning nozzle 6 while heating the cleaning water to a predetermined temperature (cleaning process: 55 ° C., heating rinsing process: 67 ° C.). The

また、洗浄行程、加熱すすぎ行程においては、ペルチエ素子２１の洗浄槽２０に接する面を発熱側となるよう電流が制御される。これにより、洗浄槽２０の周囲空気に含まれる熱を、洗浄槽２０内の洗浄水に伝熱することが可能となり、洗浄水の温度上昇に必要な消費電力量を少なく抑えることができる。   In the cleaning process and the heating rinsing process, the current is controlled so that the surface of the Peltier element 21 in contact with the cleaning tank 20 is on the heat generation side. Thereby, the heat contained in the ambient air of the cleaning tank 20 can be transferred to the cleaning water in the cleaning tank 20, and the amount of power consumption required for increasing the temperature of the cleaning water can be reduced.

また、乾燥行程においては、ペルチエ素子２１の洗浄槽２０に接する面を吸熱側となるよう電流が制御される。これにより、ペルチエ素子２１が接している洗浄槽２０内面近傍において、洗浄槽２０内の空気が含む水蒸気を結露せしめ、除湿することが可能である。   In the drying process, the current is controlled so that the surface of the Peltier element 21 in contact with the cleaning tank 20 is on the heat absorption side. Thereby, in the vicinity of the inner surface of the cleaning tank 20 with which the Peltier element 21 is in contact, water vapor contained in the air in the cleaning tank 20 can be condensed and dehumidified.

ペルチエ素子２１が接する場所は、図３のように洗浄槽２０の側面に限られるものではなく、底面であっても良い。洗浄槽２０の肉厚について、ペルチエ素子２１が接する部分を他の部分より薄く設定すると、熱伝達速度が増え効果的である。   The place where the Peltier element 21 contacts is not limited to the side surface of the cleaning tank 20 as shown in FIG. About the thickness of the washing tank 20, if the part which the Peltier element 21 contacts is set thinner than the other part, the heat transfer speed is increased and it is effective.

乾燥用空気を洗浄槽２０内に送る乾燥用ファン１２は、吸い込み口がペルチエ素子２１の近傍になるようダクト２２を備えている。これにより、乾燥行程中にペルチエ素子２１の洗浄槽２０とは反対側の面から発生する熱を乾燥用空気に取り込めるので、乾燥用空気を加熱するために必要な消費電力量を低く抑えることが可能となり、省エネルギ性に優れた食器洗い機とすることができる。   The drying fan 12 that sends the drying air into the cleaning tank 20 includes a duct 22 so that the suction port is in the vicinity of the Peltier element 21. As a result, heat generated from the surface of the Peltier element 21 opposite to the cleaning tank 20 during the drying process can be taken into the drying air, so that the amount of power consumption required to heat the drying air can be kept low. It becomes possible and it can be set as the dishwasher excellent in energy saving.

本発明の食器洗い機は、ヒートポンプユニットあるいはペルチエ素子をより効果的に用いたことで、従来の技術によるものより省エネルギ性が高く、使い勝手の良い食器洗い機に利用できる。   The dishwasher of the present invention can be used in a dishwasher that has higher energy saving and is easier to use than the conventional technology by using the heat pump unit or the Peltier element more effectively.

本発明の第１の実施の形態の食器洗い機の洗浄行程における側断面図Side sectional view in the washing process of the dishwasher of the first embodiment of the present invention 同食器洗い機の乾燥行程における側断面図Side cross-sectional view in the drying process of the dishwasher 本発明の第２の実施の形態の食器洗い機の側断面図Side sectional view of the dishwasher of the second embodiment of the present invention 従来の食器洗い機の側断面図Side view of a conventional dishwasher

符号の説明Explanation of symbols

１ 食器洗い機本体
１３、２０ 洗浄槽
１４ 第１の熱交換器
１５ 第２の熱交換器
１６ 圧縮機
１７ 膨張弁
１８ 切換弁
１９、２２ ダクト
２１ ペルチエ素子
３０ ヒートポンプユニット
３１ 制御装置（制御手段） DESCRIPTION OF SYMBOLS 1 Dishwasher main body 13,20 Washing tank 14 1st heat exchanger 15 2nd heat exchanger 16 Compressor 17 Expansion valve 18 Switching valve 19, 22 Duct 21 Peltier element 30 Heat pump unit 31 Control apparatus (control means)

Claims (5)

食器洗い機本体内に、洗浄槽と、ヒートポンプユニットと、洗い、すすぎ、加熱すすぎ、乾燥の一連の行程を逐次制御する制御手段とを備え、前記制御手段は、前記ヒートポンプユニットを構成する、前記洗浄槽中の洗浄水と熱交換する熱交換器が、洗い、加熱すすぎ行程のうち少なくとも一方の行程においては凝縮器となり、また乾燥行程においては蒸発器となるよう切り替え制御する食器洗い機。 In the dishwasher body, the washing tank, the heat pump unit, and a control means for sequentially controlling a series of steps of washing, rinsing, heating rinsing and drying, the control means constituting the heat pump unit, the washing A dishwasher that performs switching control so that a heat exchanger that exchanges heat with washing water in a tank is a condenser in at least one of the washing and heating rinsing steps and an evaporator in the drying step. 洗浄槽中の洗浄水と熱交換する熱交換器は洗浄槽に接する構成とした請求項１に記載の食器洗い機。 The dishwasher according to claim 1, wherein the heat exchanger for exchanging heat with the washing water in the washing tank is in contact with the washing tank. 乾燥用空気取り入れ口をヒートポンプユニット近傍に配した請求項１または２に記載の食器洗い機。 The dishwasher according to claim 1 or 2, wherein an air intake for drying is arranged in the vicinity of the heat pump unit. 食器洗い機本体内に、洗浄槽と、ペルチエ素子と、洗い、すすぎ、加熱すすぎ、乾燥の一連の行程を逐次制御するとともに前記ペルチエ素子に流す電流を制御する制御手段とを備え、前記ペルチエ素子を前記洗浄槽に接するよう構成するとともに、前記制御手段は、洗浄槽に接したペルチエ素子について、洗い、加熱すすぎ行程のうち少なくとも一方の行程においては発熱側となり、また乾燥行程においては吸熱側となるよう電流を切り替え制御する食器洗い機。 In the dishwasher body, a washing tub, a Peltier element, and a control means for sequentially controlling a series of steps of washing, rinsing, heating, rinsing and drying and controlling a current flowing through the Peltier element, the Peltier element is provided. The control means is configured to be in contact with the cleaning tank, and the control means is a heat generation side in at least one of the washing and heating rinsing processes and a heat absorption side in the drying process for the Peltier element in contact with the cleaning tank. Dishwasher that controls switching current. 乾燥用空気取り入れ口をペルチエ素子近傍に配した請求項４に記載の食器洗い機。 The dishwasher according to claim 4, wherein a drying air intake port is arranged in the vicinity of the Peltier element.
JP2005316116A 2005-10-31 2005-10-31 dishwasher Expired - Fee Related JP4544131B2 (en)

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JP2005316116A JP4544131B2 (en) 2005-10-31 2005-10-31 dishwasher
TW095137499A TW200727848A (en) 2005-10-31 2006-10-12 Dishwasher
KR1020060105588A KR100770072B1 (en) 2005-10-31 2006-10-30 Dish washer
CNB2006101429185A CN100558284C (en) 2005-10-31 2006-10-31 Dish cleaning machine
CNU2006201369847U CN201036546Y (en) 2005-10-31 2006-10-31 Tableware cleaning machine

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KR20070046740A (en) 2007-05-03
CN201036546Y (en) 2008-03-19

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