JP2001190479A - Dishwasher - Google Patents
DishwasherInfo
- Publication number
- JP2001190479A JP2001190479A JP2000004459A JP2000004459A JP2001190479A JP 2001190479 A JP2001190479 A JP 2001190479A JP 2000004459 A JP2000004459 A JP 2000004459A JP 2000004459 A JP2000004459 A JP 2000004459A JP 2001190479 A JP2001190479 A JP 2001190479A
- Authority
- JP
- Japan
- Prior art keywords
- water
- dishwasher
- flow path
- tank
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、給湯器に接続して
使用される食器洗浄機に関し、特に、給湯器の燃焼開始
後、給湯器から食器洗浄機までの配管内から流れる冷た
い滞留水を利用することにより、水道水の有効利用を図
り得る食器洗浄機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher used in connection with a water heater, and more particularly, to a method for removing cold accumulated water flowing from a pipe from the water heater to the dishwasher after the start of combustion of the water heater. The present invention relates to a dishwasher capable of effectively utilizing tap water by using the dishwasher.
【０００２】[0002]
【従来の技術】食器洗浄機は、一般に、給湯器から送ら
れる熱水（湯）を洗浄槽下部の水溜め部に所定量溜め、
その後、溜められた熱水をポンプにより洗浄槽内の食器
に吹き付け、流下した熱水は水溜め部から繰り返し循環
させて吹き付けるというように作動する。2. Description of the Related Art A dishwasher generally stores a predetermined amount of hot water (hot water) sent from a water heater in a water reservoir at a lower portion of a washing tank.
Thereafter, the stored hot water is sprayed on the tableware in the washing tank by the pump, and the hot water flowing down is repeatedly circulated and sprayed from the water reservoir.
【０００３】この種の食器洗浄機は、運転の開始により
給湯器の燃焼が始まった直後は、給湯器から食器洗浄機
までの配管内に溜まっていた冷たい水（以下、初期給水
という）が先ず食器洗浄機に流入する。従来の食器洗浄
機においては、初期給水は食器洗浄機から排出し、送ら
れてくる水の温度が高くなった頃から熱水を水溜め部に
溜めるように制御されていた。これは、初期給水を水溜
め部に溜めると、その後到達する熱水と混ざって、熱水
の温度を下げてしまうからである。[0003] In this type of dishwasher, immediately after combustion of the water heater starts due to the start of operation, cold water (hereinafter, referred to as initial water supply) accumulated in a pipe from the water heater to the dishwasher is first. Enters the dishwasher. In a conventional dishwasher, the initial supply of water is discharged from the dishwasher, and the hot water is controlled so as to be stored in the sump when the temperature of the supplied water increases. This is because if the initial supply water is stored in the water reservoir, it is mixed with the hot water that arrives after that, and the temperature of the hot water is lowered.
【０００４】[0004]
【発明が解決しようとする課題】しかし、水道水の有効
利用の観点からすると、食器洗浄機の運転の都度、初期
給水を排出してしまうことは望ましくない。However, from the viewpoint of effective utilization of tap water, it is not desirable to discharge the initial supply water every time the dishwasher is operated.
【０００５】本発明は、このような従来記述の問題点を
解消し、食器洗浄機への初期給水を有効利用を可能とす
ることを目的とする。[0005] An object of the present invention is to solve such a problem described in the prior art and to make it possible to effectively use initial water supply to a dishwasher.
【０００６】[0006]
【課題を解決するための手段】本発明の前記目的は、給
湯器に接続され洗浄槽下方の水溜め部に溜めた水を循環
させつつ食器に吹き付けて該食器を洗浄する食器洗浄機
において、前記水溜め部とは別に設けられた貯水タンク
と、前記貯水タンクへの水の出入りを制御する制御弁
と、前記貯水タンク内の水を利用するために該タンクに
接続された利用流路と、前記貯水タンク内の水を前記利
用流路に送るための送水ポンプと、洗浄開始の際に前記
給湯器から供給される初期水を前記貯水タンクに導入す
るように前記制御弁を制御する制御部とを備えることを
特徴とする食器洗浄機により達成される。SUMMARY OF THE INVENTION The object of the present invention is to provide a dishwasher for washing tableware by spraying the tableware while circulating water stored in a water reservoir below the washing tank connected to a water heater. A water storage tank provided separately from the water storage section, a control valve for controlling the flow of water into and out of the water storage tank, and a use flow path connected to the tank to use water in the water storage tank. A water supply pump for sending water in the water storage tank to the use flow path, and control for controlling the control valve so as to introduce initial water supplied from the water heater to the water storage tank at the start of washing. And a dishwasher characterized by comprising:
【０００７】本発明の望ましい実施形態においては、前
記利用流路は、該利用流路を経た水が前記水溜め部に溜
まるように配設される。或いは、洗浄槽内に外気を送り
込むためのファン、及び洗浄槽内の空気を排出するため
の換気口がさらに備えられ、該換気口に熱交換器が設け
られており、前記利用流路は、該熱交換器における熱交
換用流路に接続される。或いは、前記利用流路が前記貯
水タンクより前記送水ポンプを介して再び前記貯水タン
クに接続される循環流路であり、循環の際に食器洗浄機
に設けられた少なくとも１つのポンプの冷却に利用され
る。或いは前記利用流路は洗浄槽の排水路に接続され洗
浄槽からの排水の冷却に利用される。[0007] In a preferred embodiment of the present invention, the use flow path is provided so that water passing through the use flow path is stored in the water reservoir. Alternatively, a fan for sending outside air into the cleaning tank, and a ventilation port for discharging air in the cleaning tank are further provided, and a heat exchanger is provided in the ventilation port, and the use flow path includes: The heat exchanger is connected to a heat exchange channel. Alternatively, the use flow path is a circulation flow path connected from the water storage tank to the water storage tank again via the water supply pump, and is used for cooling at least one pump provided in the dishwasher during circulation. Is done. Alternatively, the use flow path is connected to a drainage channel of the cleaning tank and is used for cooling drainage from the cleaning tank.
【０００８】[0008]
【発明の実施の形態】以下、本発明の好ましい実施形態
を添付図面を参照しつつ説明する。図１から図４は本発
明の相互に異なる実施形態に係る食器洗浄機を示す縦断
面図である。以下の実施形態において、同一又は同種の
部分には、同じ番号を付してその説明を省略する。Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4 are longitudinal sectional views showing dishwashers according to different embodiments of the present invention. In the following embodiments, the same or similar parts are denoted by the same reference numerals and description thereof will be omitted.
【０００９】(I) 第１実施形態 図１に示す食器洗浄機は、食器を洗浄するための洗浄槽
２の下方に、初期給水を貯蔵するための貯水タンク１を
備えている。さらに、この食器洗浄機は、通常の食器洗
浄機と同じく、洗浄槽２の下部に噴射パイプ７が備えら
れ、洗浄槽の下端から循環ポンプＰ１を経て噴射パイプ
７に通じる循環路８が設けられている。噴射パイプ７に
は、多数のノズル孔が形成されており、洗浄槽２内に置
かれた食器に、循環ポンプにより圧送された洗浄用又は
すすぎ用の湯水を吹き付けるようになっている。また、
洗浄槽２の下端から食器洗浄機外へ延びる排水路３と、
該排水路の途中に設けられた送水ポンプＰ２を備えてい
る。(I) First Embodiment The dishwasher shown in FIG. 1 has a water storage tank 1 for storing initial water supply below a washing tank 2 for washing dishes. Further, this dishwasher is provided with an injection pipe 7 at the lower portion of the washing tank 2 and a circulation path 8 leading from the lower end of the washing tank to the injection pipe 7 via the circulation pump P1 as in a normal dishwasher. ing. A large number of nozzle holes are formed in the injection pipe 7, and washing or rinsing hot water pumped by a circulation pump is blown onto tableware placed in the washing tank 2. Also,
A drain 3 extending from the lower end of the washing tank 2 to the outside of the dishwasher;
The water supply pump P2 provided in the middle of the drainage channel is provided.
【００１０】この実施形態においては、水溜め部２ａの
下端から貯水タンク１に延びる第１利用流路４ａ、貯水
タンク１から送水ポンプの上流側の排水路３に延びる第
２利用流路４ｂ、送水ポンプの下流側の排水路３から洗
浄槽上部の給湯口２１に延びる第３利用流路４ｃが設け
られている。さらに、第１利用流路４ａの途中には、貯
水タンクへの洗浄水の出入りを制御する貯水弁５が設け
られている。第２利用流路４ｂと排水路３との接続部に
は切替弁９が設けられ、第３利用流路４ｃより下流側の
排水路３には、排水弁１０が設けられている。給湯口２
１に接続された接続部１１は、給湯器から延びる供給管
を接続するためのものであり、第３利用流路４ｃの直ぐ
上流側の接続部１１には、給水弁１２が設けられてい
る。これらの各弁は、電気信号により開閉を制御される
電磁弁等の制御弁とされている。食器洗浄機の内部に
は、所定のプログラムに従って前述の各弁の開閉や洗浄
用及び排水用のポンプの作動等を制御する制御部６が備
えられている。洗浄槽２には、換気用のファン１３が設
けられており、これにより、洗浄後の槽内の蒸気を排出
するようになっている。In this embodiment, a first usage flow path 4a extending from the lower end of the water reservoir 2a to the water storage tank 1, a second usage flow path 4b extending from the water storage tank 1 to the drainage path 3 upstream of the water supply pump, A third use channel 4c is provided extending from the drainage channel 3 downstream of the water pump to the hot water supply port 21 at the top of the washing tank. Further, a water storage valve 5 for controlling the flow of washing water into and out of the water storage tank is provided in the middle of the first usage flow path 4a. A switching valve 9 is provided at a connection between the second usage flow path 4b and the drainage path 3, and a drainage valve 10 is provided in the drainage path 3 downstream of the third usage flow path 4c. Hot water supply 2
The connection portion 11 connected to 1 is for connecting a supply pipe extending from the water heater, and the connection portion 11 immediately upstream of the third usage flow path 4c is provided with a water supply valve 12. . Each of these valves is a control valve such as an electromagnetic valve whose opening and closing are controlled by an electric signal. Inside the dishwasher, there is provided a control unit 6 for controlling the opening and closing of the above-described valves and the operation of the washing and drainage pumps according to a predetermined program. The cleaning tank 2 is provided with a fan 13 for ventilation, so that the steam in the tank after the cleaning is discharged.
【００１１】この食器洗浄機は、次のように作動する。
以下、行程毎に説明する。The dishwasher operates as follows.
Hereinafter, each process will be described.
【００１２】i)初期給水の貯水 食器洗浄機を作動させ、給水弁１２を開くと、給湯口２
１を経て、給湯器からの供給が開始される。最初、貯水
弁５は開かれ、他の切替弁９，排水弁１０は閉じられて
いる。給湯器からの供給の初期は、給湯器と食器洗浄機
との間の接続管に溜まっていた冷たい水が、初期給水と
して供給される。このとき、貯水弁５は開かれているの
で、初期給水は水溜め部２ａに溜まることなく、第１利
用流路４ａを経て貯水タンク１に溜められる。貯水タン
ク１内が適当量の水で満たされると、制御部６へ満水を
知らせる信号が送られ、制御部６の作動により貯水弁５
が閉じられる。この貯水タンク１の満水状態の検知は、
貯水タンク１内に設けられたフロートスイッチ、所定水
位への到達による電流値の変化を測定する電極式水位
計、貯水タンクへの流路を通過した水量を計測する水量
計、満水時の水位位置に設けられたサーミスタ等の温度
センサ、貯水タンクへの給水時間を測定するタイマ等に
より、行なうことができる。I) Storage of initial water supply When the dishwasher is operated and the water supply valve 12 is opened, the hot water supply port 2 is opened.
After 1, the supply from the water heater is started. First, the water storage valve 5 is opened, and the other switching valve 9 and the drain valve 10 are closed. At the beginning of the supply from the water heater, the cold water stored in the connecting pipe between the water heater and the dishwasher is supplied as the initial water supply. At this time, since the water storage valve 5 is open, the initial water supply is stored in the water storage tank 1 via the first use flow path 4a without being stored in the water storage part 2a. When the inside of the water storage tank 1 is filled with an appropriate amount of water, a signal indicating that the water is full is sent to the control unit 6 and the water storage valve 5 is operated by the control unit 6.
Is closed. The detection of the full state of the water storage tank 1
A float switch provided in the water storage tank 1, an electrode type water level meter for measuring a change in current value when a predetermined water level is reached, a water meter for measuring the amount of water passing through a flow path to the water storage tank, a water level position when the water is full The temperature can be measured by a temperature sensor such as a thermistor provided in the apparatus, a timer for measuring a water supply time to the water storage tank, or the like.
【００１３】ii)洗浄 貯水タンク１が満たされる程度に給湯器から水が送られ
た頃には、送られる水の温度は上昇し熱水となってい
る。したがって、貯水弁５が閉じられた後は、洗浄槽の
水溜め部２ａに熱水が溜められる。洗浄槽２には、予め
洗剤が置かれているので、溜められた熱水に溶けて洗浄
水を形成する。水溜め２ａに適量の熱水が溜められた
ら、循環ポンプＰ１が作動し、熱水が噴射パイプ７から
洗浄槽内の食器に噴射されて洗浄が行なわれる。水溜め
部２ａに適量の水が溜められたことの検知は、水溜め部
に設けられた水位計、水溜め部への供給路を通過した水
量を計測する水量計、水溜め部への水供給時間を測定す
るタイマ等により、行なうことができ、適量が溜められ
たことを知らせる信号が、制御部６に送られる。また、
洗浄は、噴射パイプ７から出た水が水溜め部２ａに溜ま
り、循環ポンプＰ１により再び噴射パイプ７に送られる
というように、水を循環させて行われる。この洗浄は、
設定された時間の経過により停止する。Ii) Washing When the water is sent from the water heater to the extent that the water storage tank 1 is filled, the temperature of the sent water rises and becomes hot water. Therefore, after the water storage valve 5 is closed, hot water is stored in the water reservoir 2a of the cleaning tank. Since the detergent is placed in the washing tank 2 in advance, it is dissolved in the stored hot water to form washing water. When an appropriate amount of hot water is stored in the water reservoir 2a, the circulation pump P1 is operated, and the hot water is sprayed from the spray pipe 7 to tableware in the washing tank to perform washing. The detection that an appropriate amount of water has been stored in the water reservoir 2a is performed by a water level meter provided in the water reservoir, a water meter that measures the amount of water that has passed through a supply path to the water reservoir, and a water meter that supplies water to the water reservoir. This can be performed by a timer or the like that measures the supply time, and a signal notifying that an appropriate amount has been stored is sent to the control unit 6. Also,
The washing is performed by circulating the water such that the water discharged from the injection pipe 7 is accumulated in the water reservoir 2a and sent to the injection pipe 7 again by the circulation pump P1. This wash
Stops after the set time elapses.
【００１４】iii)排水 循環ポンプＰ１が停止すると、排水行程に移行する。こ
こでは、切り替え弁９が、排水路３を送水ポンプＰ２に
通じさせ、排水弁１０が開かれ、送水ポンプＰ２が作動
する。これにより、水溜め部２ａ内の水が排水路３を経
て、食器洗浄機外へ排出される。Iii) Drainage When the circulation pump P1 stops, the process shifts to the drainage stroke. Here, the switching valve 9 connects the drain passage 3 to the water pump P2, the drain valve 10 is opened, and the water pump P2 operates. Thereby, the water in the water reservoir 2a is discharged to the outside of the dishwasher through the drainage channel 3.
【００１５】水溜め部２ａ内の水がなくなると送水ポン
プの負荷が低下するので、電流値の変化を測定すること
により、それを検知することができる。その他、水溜め
部２ａ内の水量計による等して、水溜め部２ａ内の水が
なくなったことを検知することができる。水溜め部２ａ
内の水がなくなったことが検知されると、送水ポンプＰ
２が停止させられ、切り替え弁９が閉じられる。 iv)初期給水によるすすぎ 洗浄後の排水が終了すると、初期給水によるすすぎ行程
が開始される。ここでは、制御部６は、切替弁９を第２
利用流路から排水路３に通じるように開き、給水弁１２
を閉じ、送水ポンプＰ２を作動させる。これにより、貯
水タンク１に溜められていた初期給水は、第２利用流路
４ｂ、排水路３及び第３利用流路４ｃを経て、給湯口２
１から洗浄槽２内へと流れる。洗浄槽２に供給された初
期給水は、水溜め部２ａに溜められる。貯水タンク１内
の水がなくなると、送水ポンプの電流値変化の測定、貯
水タンク１内の水量計による等して、これを検知するこ
とができる。その検知により、送水ポンプＰ２が停止さ
せられ、切り替え弁９が閉じられる。そして、循環ポン
プＰ１が作動して、水溜め部２ａ内の水を噴射パイプ７
から噴出させて食器をすすぐ。所定時間が経過すると、
制御部６は、循環ポンプＰ１を停止させる。なお、この
すすぎ行程において、給水弁１２を開いて給湯器から熱
水を供給し、貯水タンク１内から水溜め部２ａに送られ
る水に加えることもできる。When the water in the water reservoir 2a is exhausted, the load on the water supply pump is reduced. Therefore, it is possible to detect the change by measuring the change in the current value. In addition, it is possible to detect that the water in the water reservoir 2a has run out, for example, by using a water meter in the water reservoir 2a. Water reservoir 2a
When it is detected that the water in the pump has run out, the water pump P
2 is stopped, and the switching valve 9 is closed. iv) Rinsing by initial water supply When drainage after washing is completed, the rinsing process by initial water supply is started. Here, the control unit 6 sets the switching valve 9 to the second
It opens so that it may lead to the drainage channel 3 from a use channel, and the water supply valve 12
Is closed, and the water pump P2 is operated. Thereby, the initial supply water stored in the water storage tank 1 passes through the second use flow path 4b, the drainage path 3 and the third use flow path 4c, and is supplied to the hot water supply port 2
1 flows into the washing tank 2. The initial water supply supplied to the cleaning tank 2 is stored in the water storage section 2a. When the water in the water storage tank 1 runs out, this can be detected by measuring a change in the current value of the water supply pump, using a water meter in the water storage tank 1, or the like. The water pump P2 is stopped by the detection, and the switching valve 9 is closed. Then, the circulation pump P1 is operated, and the water in the water reservoir 2a is discharged from the injection pipe 7.
Rinse tableware by squirting from After a predetermined time,
The control unit 6 stops the circulation pump P1. In this rinsing process, it is also possible to open the water supply valve 12 and supply hot water from the water heater to add the hot water from the water storage tank 1 to the water sent to the water reservoir 2a.
【００１６】ｖ）排水 循環ポンプＰ１が停止すると、前述のiii)排水の行程と
同様にして、水溜め部２ａ内の水が排出される。V) Drainage When the circulation pump P1 stops, the water in the water reservoir 2a is drained in the same manner as in the above iii) drainage process.
【００１７】vi)給湯器からの給水によるすすぎ 排水が完了すると、給湯器からの給水によるすすぎ行程
に移行する。ここでは、切り替え弁９及び排水弁１０が
閉じられ、給水弁１２が開かれる。これにより、給湯器
から水（通常は熱水）が送られ、水溜め部２ａに溜めら
れる。所定量の水が溜められると、循環ポンプＰ１が作
動し、水が噴射パイプ７から洗浄槽内の食器に噴射され
てすすぎが行なわれる。設定された時間の経過により、
制御部６は循環ポンプＰ１を停止させる。Vi) Rinse by water supply from water heater When drainage is completed, the process shifts to a rinsing step by water supply from the water heater. Here, the switching valve 9 and the drain valve 10 are closed, and the water supply valve 12 is opened. Thereby, water (normally, hot water) is sent from the water heater, and is stored in the water reservoir 2a. When a predetermined amount of water is stored, the circulation pump P1 is operated, and water is sprayed from the spray pipe 7 to tableware in the washing tank to perform rinsing. After the set time,
The control unit 6 stops the circulation pump P1.
【００１８】vii)すすぎの繰り返し すすぎが十分に行なわれるように、前述のv)排水、vi)
給湯器からの給水によるすすぎの行程が、適宜繰り返さ
れる。最後に、排水行程が行なわれて、食器の洗浄が終
了する。Vii) Repetition of rinsing The above-mentioned v) drainage, vi)
The rinsing process by the water supply from the water heater is repeated as appropriate. Finally, a drainage process is performed, and the washing of the dishes is completed.
【００１９】このように、本実施形態においては、貯水
タンク１に溜められた初期給水が、利用流路４ａ，４
ｂ，４ｃを経て水溜め部２ａに溜められ、食器のすすぎ
に利用されるというようにして、初期給水の有効利用が
図られる。As described above, in the present embodiment, the initial supply water stored in the water storage tank 1 is supplied to the use flow paths 4a, 4a.
Through the b and 4c, the water is stored in the water storage section 2a, and is used for rinsing of tableware, so that the initial water supply can be effectively used.
【００２０】(II) 第２実施形態 図２に示す実施形態は、図１に示した実施形態とほぼ同
様の構造を有するが、図１における第３利用流路４ｃに
代えて、第３利用流路４ｄが設けられている。利用流路
４ｄは、送水ポンプＰ２より下流側の排水路３から分岐
するようにして上方へ延び食器洗浄機上部の熱交換器１
４を経て下方へ延び、再び排水路３に接続されている。
排水路３と利用流路４ｄとの接続箇所には切り替え弁１
０が設けられている。熱交換器１４は、食器洗浄機の扉
１６上部を貫通する換気口１７に設置されており、図５
ａ及び図５ｂに示すように構成されている。すなわち、
利用流路４ｄの一部がつづら折り状に曲折して熱交換路
４ｄ’を形成し、これを横切る複数枚のフィン１５が熱
交換路４ｄ’に接している。フィン１５は、換気口１７
が食器洗浄機の扉１６を貫通する方向に平行に延びてお
り、洗浄槽２から換気口１７を経て排出される蒸気は、
フィン１５の間を通って流れる。(II) Second Embodiment The embodiment shown in FIG. 2 has substantially the same structure as that of the embodiment shown in FIG. 1, except that the third usage channel 4c in FIG. A flow path 4d is provided. The use flow path 4d extends upward so as to branch off from the drainage path 3 downstream of the water supply pump P2, and the heat exchanger 1 at the top of the dishwasher.
It extends downward through 4 and is again connected to the drain 3.
A switching valve 1 is provided at the connection point between the drainage channel 3 and the use flow path 4d.
0 is provided. The heat exchanger 14 is installed in a ventilation port 17 that penetrates the upper portion of the dishwasher door 16 as shown in FIG.
a and FIG. 5b. That is,
A part of the use flow path 4d is bent in a zigzag manner to form a heat exchange path 4d ', and a plurality of fins 15 crossing the heat exchange path 4d' are in contact with the heat exchange path 4d '. Fin 15 is provided with ventilation port 17
Extends parallel to the direction penetrating the dishwasher door 16, and the steam discharged from the washing tank 2 through the ventilation port 17 is
It flows between the fins 15.
【００２１】この実施形態に係る食器洗浄機は、図１の
実施形態における「iv)初期給水によるすすぎ」の行程
がなく、これに代えて、以下の排気冷却行程を行なう。
一連の洗浄及びすすぎが終わった後、洗浄槽２内には、
熱水から出た蒸気が充満しているので、これをファン１
３により排出する。ファン１３は、食器洗浄機外の空気
を洗浄槽内に送り込み、これにより、洗浄槽２内の蒸気
が換気口１７から排出される。このとき、制御部６は、
切り替え弁１０を、排水路３を食器洗浄機外に開く状態
から、第３利用流路４ｄに接続するように切り替え、切
り替え弁９を貯水タンク１から排水路３に通じるように
切り替え、送水ポンプＰ２を作動させる。これにより、
貯水タンク１内の初期給水は、第２利用流路４ｂ、第３
利用流路４ｄを経て熱交換器１４を経て、再び排水路３
へ流れて食器洗浄機外へ排出される。冷たい初期給水が
熱交換器１４の熱交換路４ｄ’を流れることにより、フ
ィン１５が冷却される。その結果、フィン１５の間を流
れる蒸気が冷却されて凝結する。したがって、洗浄槽２
からの排気が含む蒸気は低減し、台所等に多量の蒸気が
広がるのが防止される。The dishwasher according to this embodiment does not have the step of “iv) rinsing by initial water supply” in the embodiment of FIG. 1, and instead performs the following exhaust cooling step.
After a series of washing and rinsing, the washing tank 2 contains
Since the steam from the hot water is full,
Discharge by 3. The fan 13 sends air outside the dishwasher into the washing tank, whereby the steam in the washing tank 2 is exhausted from the ventilation port 17. At this time, the control unit 6
The switching valve 10 is switched from the state in which the drainage channel 3 is opened to the outside of the dishwasher to be connected to the third usage flow path 4d, and the switching valve 9 is switched so as to communicate from the water storage tank 1 to the drainage channel 3. Activate P2. This allows
The initial water supply in the water storage tank 1 is based on the second use flow path 4b,
After passing through the use flow path 4d, passing through the heat exchanger 14, the drainage path 3
And discharged out of the dishwasher. The fins 15 are cooled by the cold initial supply water flowing through the heat exchange path 4d 'of the heat exchanger 14. As a result, the steam flowing between the fins 15 is cooled and condensed. Therefore, cleaning tank 2
The amount of steam contained in the exhaust air is reduced, and a large amount of steam is prevented from spreading to the kitchen or the like.
【００２２】なお、熱交換器１４は、上述のように食器
洗浄機の扉に設ける他、食器洗浄機の本体の壁に設ける
こともできる。The heat exchanger 14 may be provided on the wall of the main body of the dishwasher, in addition to being provided on the door of the dishwasher as described above.
【００２３】また、第３利用流路４ｄと排水路３の接続
部Ｘには、排水路３から第３利用流路４ｄへの排水の逆
流が問題となる場合には、これを防止するため、種々の
手段をとることができる。例えば図２に示されたよう
に、矢印Ｘ１で示された排水方向と、矢印Ｘ２で示され
た第３利用流路４ｄの排水路３への接続方向が鋭角に交
叉するように第３利用流路を設けることも可能である
し、接続部Ｘに方向切替弁（図示せず）を設けることも
可能である。In the connection portion X between the third use flow path 4d and the drainage path 3, if there is a problem of backflow of drainage from the drainage path 3 to the third use flow path 4d, this is to prevent this. Various means can be taken. For example, as shown in FIG. 2, the third drainage direction indicated by arrow X1 and the third usage flow path 4d connected to drainage channel 3 indicated by arrow X2 intersect at an acute angle. A flow path can be provided, and a directional switching valve (not shown) can be provided at the connection portion X.
【００２４】(III) 第３実施形態 図３に示す実施形態は、図１に示した実施形態とほぼ同
様の構造を有するが、図１における第３利用流路４ｃに
代えて、第３利用流路４ｅが設けられている。利用流路
４ｅは、送水ポンプＰ２より下流側の排水路３から分岐
するようにして延び、貯水タンク１に接続されている。
排水路３と利用流路４ｅとの接続箇所には切り替え弁１
８が設けられている。すなわち、利用流路４ｅは、貯水
タンク１から延びる第２利用流路４ｂ、及びこれに接続
した排水路３と共に、初期給水から流れ出た初期給水を
再び貯水タンク１に戻す循環流路を形成している。そし
て、この循環流路の途中に、食器洗浄機の循環ポンプＰ
１が位置しており、該ポンプの冷却を行なうようになっ
ている。すなわち、第２利用経路４ｂは、図６ａ及び図
６ｂに示すように、循環ポンプＰ１を取り囲んで流れる
冷却用流路４ｂ’を途中に備えている。循環ポンプＰ１
は、その胴体部から複数のフィン１９を径方向に延ばし
ている。冷却用流路４ｂ’は、これらのフィン１９を貫
通して延びている。(III) Third Embodiment The embodiment shown in FIG. 3 has substantially the same structure as that of the embodiment shown in FIG. 1, except that the third usage flow path 4c in FIG. A flow path 4e is provided. The use flow path 4e extends so as to branch off from the drainage path 3 downstream of the water supply pump P2, and is connected to the water storage tank 1.
A switching valve 1 is provided at a connection point between the drainage channel 3 and the use channel 4e.
8 are provided. That is, the use flow path 4e, together with the second use flow path 4b extending from the water storage tank 1 and the drainage path 3 connected thereto, forms a circulation flow path for returning the initial water supplied from the initial water supply to the water storage tank 1 again. ing. And, in the middle of this circulation channel, the circulation pump P of the dishwasher is provided.
1 is provided for cooling the pump. That is, as shown in FIGS. 6A and 6B, the second usage path 4b includes a cooling flow path 4b ′ that surrounds the circulation pump P1. Circulation pump P1
Has a plurality of fins 19 extending from its body in the radial direction. The cooling channel 4b 'extends through these fins 19.
【００２５】この実施形態に係る食器洗浄機は、図１の
実施形態における「iv)初期給水によるすすぎ」の行程
がなく、これに代えて、以下のポンプ冷却行程を行な
う。送水ポンプＰ２が、水溜め部２ａの水の排水を行な
うときには、切り替え弁９は排水路３を送水ポンプＰ２
に接続するように、また、切り替え弁１８は、排水路３
を食器洗浄機外へ開くように切り替えられる。一方、排
水を行なわない場合であって、循環ポンプＰ１の動作時
等、循環ポンプＰ１の冷却をするのが望ましいときに
は、切り替え弁９は、第２利用流路４ｂを排水路３に接
続するように切り替えられ、切り替え弁１８は排水路３
を第３利用流路４ｅに接続するように切り替えられる。
この状態で、送水ポンプＰ２を作動させると、貯水タン
ク１内の初期給水は、第２利用流路４ｂ、排水路３、第
３利用流路４ｅの循環流路を流れながら、冷却用流路４
ｂ’で送水ポンプＰ２の冷却を行なう。したがって、こ
のように形成された循環流路により、送水ポンプの作動
時の熱が吸収され、過熱を防いで確実な作動が保証され
る。The dishwasher according to this embodiment does not have the step of "iv) rinsing by initial water supply" in the embodiment of FIG. 1, and instead performs the following pump cooling step. When the water supply pump P2 drains water from the water reservoir 2a, the switching valve 9 connects the drainage passage 3 to the water supply pump P2.
And the switching valve 18 is connected to the drain 3
Can be switched out of the dishwasher. On the other hand, when drainage is not performed and it is desirable to cool the circulation pump P1 such as during operation of the circulation pump P1, the switching valve 9 connects the second use flow path 4b to the drainage path 3. And the switching valve 18 is connected to the drain 3
Is connected to the third usage channel 4e.
In this state, when the water supply pump P2 is operated, the initial supply of water in the water storage tank 1 flows through the second use flow path 4b, the drainage path 3, and the third use flow path 4e while circulating through the cooling flow path. 4
The water pump P2 is cooled at b '. Therefore, the circulation flow path formed in this way absorbs heat during operation of the water supply pump, and prevents overheating to ensure reliable operation.
【００２６】なお、このような循環流路は、前述のよう
に循環ポンプＰ１の他、送水ポンプＰ２、さらには図外
の他のポンプを取り囲むように形成し、それらの冷却に
使用することもできる。It should be noted that such a circulation flow path may be formed so as to surround the water supply pump P2 and further other pumps (not shown) in addition to the circulation pump P1 as described above, and may be used for cooling them. it can.
【００２７】(IV) 第４実施形態 図４に示す実施形態は、図１に示した実施形態とほぼ同
様の構造を有するが、図１における第３利用流路４ｃを
備えておらず、これに代えて、第２利用流路４ｂに冷却
弁２０が設けられている。この冷却弁２０は、制御部６
からの制御信号に応じて開閉する。(IV) Fourth Embodiment The embodiment shown in FIG. 4 has substantially the same structure as the embodiment shown in FIG. 1, but does not include the third use flow path 4c in FIG. Instead, a cooling valve 20 is provided in the second usage flow path 4b. The cooling valve 20 is connected to the control unit 6
It opens and closes in response to a control signal from.
【００２８】この実施形態に係る食器洗浄機は、図１の
実施形態における「iv)初期給水によるすすぎ」の行程
がなく、これに代えて、以下の排水冷却行程を行なう。
送水ポンプＰ２が作動し、水溜め部２ａから排水路３を
経て熱水が排出されるときに、冷却弁２０は制御部６の
指令により開かれる。これにより、貯水タンク１内の初
期給水は、排出される熱水に混合されて排出される。し
たがって、食器洗浄機外へ流出する排水の温度が低下す
る。熱水が水溜め部２ａからそのまま排出されると、高
い温度のため水蒸気を多量に発生し、台所等に広がるこ
ととなる。これに対し、このように、貯水タンク１内の
冷たい初期給水を、排水時の熱水に混合させることによ
り、流出する排水の温度を低下させれば、食器洗浄機外
で発生する水蒸気の量を減らすことができる。The dishwasher according to this embodiment does not have the step of "iv) rinsing by initial water supply" in the embodiment of FIG. 1, and instead performs the following drainage cooling step.
When the water pump P2 is operated and hot water is discharged from the water reservoir 2a via the drain passage 3, the cooling valve 20 is opened by a command from the controller 6. Thereby, the initial supply water in the water storage tank 1 is mixed with the discharged hot water and discharged. Therefore, the temperature of the wastewater flowing out of the dishwasher decreases. If the hot water is discharged from the water reservoir 2a as it is, a large amount of water vapor is generated due to the high temperature, and the hot water is spread to the kitchen and the like. On the other hand, if the temperature of the discharged wastewater is reduced by mixing the cold initial supply water in the water storage tank 1 with the hot water at the time of drainage, the amount of steam generated outside the dishwasher is reduced. Can be reduced.
【００２９】冷却弁２０は、排出される熱水の量や温度
に応じて、初期給水を流す量を適切な量とするように開
度が調節される。The opening of the cooling valve 20 is adjusted in accordance with the amount and temperature of the hot water to be discharged so that the amount of the initial supply of water is adjusted to an appropriate amount.
【００３０】[0030]
【発明の効果】以上のように、本願発明によれば、以下
の効果を奏する食器洗浄機を提供することができる。す
なわち、食器洗浄機の水溜め部とは別の貯水タンク、該
貯水タンクへの水の出入りを制御する制御弁、貯水タン
ク内の水を利用するための利用流路、貯水タンク内の水
を利用流路に送る送水ポンプ、及び初期給水を貯水タン
クに導入するように制御弁を制御する制御部を備えるこ
とにより、貯水タンクに初期給水を溜めてこれを必要に
応じて利用流路に流すことにより、初期給水を有効利用
することができる。As described above, according to the present invention, a dishwasher having the following effects can be provided. That is, a water storage tank different from the water storage section of the dishwasher, a control valve for controlling the flow of water into and out of the water storage tank, a use flow path for using water in the water storage tank, and water in the water storage tank. By providing a water supply pump for sending to the use flow path and a control unit that controls the control valve so as to introduce the initial supply water to the water storage tank, the initial supply water is stored in the water storage tank and is flowed to the use flow path as necessary. Thereby, the initial water supply can be effectively used.
【００３１】特に、利用流路は、該利用流路を経た水が
水溜め部に溜まるように配設された場合は、貯水タンク
に溜められた初期給水が利用流路を経て水溜め部に溜め
られ、食器のすすぎに利用される。In particular, when the use flow path is arranged so that water passing through the use flow path is stored in the water storage section, the initial supply water stored in the water storage tank passes through the use flow path to the water storage section. Stored and used for rinsing tableware.
【００３２】また、洗浄槽に外気取り入れ用ファン及び
熱交換器付きの換気口が備えられている場合に、利用流
路は熱交換器における熱交換用流路に接続されたものと
することができ、これにより、貯水タンク内の冷たい初
期給水が熱交換用流路を流れ、換気口から排出される洗
浄槽内の蒸気が冷却されて凝結する。したがって、洗浄
槽からの排気が含む蒸気は低減し、台所等に多量の蒸気
が広がるのが防止される。When the washing tank is provided with a fan for taking in outside air and a ventilation port with a heat exchanger, the use channel may be connected to the heat exchange channel in the heat exchanger. As a result, the cold initial supply water in the water storage tank flows through the heat exchange flow path, and the steam in the washing tank discharged from the ventilation port is cooled and condensed. Therefore, the steam contained in the exhaust gas from the washing tank is reduced, and a large amount of steam is prevented from spreading to the kitchen or the like.
【００３３】さらに、利用流路は、貯水タンクより送水
ポンプを介して再び貯水タンクに接続される循環流路と
され、循環の際に食器洗浄機に設けられた少なくとも１
つのポンプの冷却に利用されることができ、これによ
り、冷たい初期給水で送水ポンプの作動時の熱が吸収さ
れ、過熱を防いで確実な作動が保証される。Further, the use flow path is a circulation flow path which is connected to the water storage tank again from the water storage tank via the water supply pump, and at least one of the at least one flow path provided in the dishwasher at the time of circulation.
It can be used for cooling of two pumps, so that the cold initial water supply absorbs the heat during the operation of the water pump and prevents overheating and ensures reliable operation.
【００３４】さらに、利用流路は、洗浄槽の排水路に接
続され洗浄槽からの排水の冷却に利用されることがで
き、これにより、貯水タンク内の冷たい初期給水を、排
水時の熱水に混合させ、流出する排水の温度を低下させ
ることができる。その結果、食器洗浄機外で発生する水
蒸気の量を減らすことができる。Further, the utilization flow path is connected to a drainage channel of the washing tank and can be used for cooling the wastewater from the washing tank. And the temperature of the discharged wastewater can be lowered. As a result, the amount of steam generated outside the dishwasher can be reduced.
【図１】本発明の相互に異なる実施形態に係る食器洗浄
機を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a dishwasher according to different embodiments of the present invention.
【図２】本発明の相互に異なる実施形態に係る食器洗浄
機を示す縦断面図である。FIG. 2 is a longitudinal sectional view showing a dishwasher according to another embodiment of the present invention.
【図３】本発明の相互に異なる実施形態に係る食器洗浄
機を示す縦断面図である。FIG. 3 is a longitudinal sectional view showing a dishwasher according to another embodiment of the present invention.
【図４】本発明の相互に異なる実施形態に係る食器洗浄
機を示す縦断面図である。FIG. 4 is a longitudinal sectional view showing a dishwasher according to another embodiment of the present invention.
【図５】図５ａは図２における熱交換器の縦断面図であ
り、図５ｂは図２における熱交換器の横断面図である。5A is a longitudinal sectional view of the heat exchanger in FIG. 2, and FIG. 5B is a transverse sectional view of the heat exchanger in FIG.
【図６】図６ａは図３における冷却用流路の縦断面図で
あり、図６ｂは図３における冷却用流路の横断面図であ
る。6A is a longitudinal sectional view of the cooling flow channel in FIG. 3, and FIG. 6B is a transverse sectional view of the cooling flow channel in FIG.
１ 貯水タンク ２ 洗浄槽 ３ 排水路 ４ 利用流路 ５ 貯水弁 ６ 制御部 ７ 噴射パイプ ８ 循環路 ９，１０ 切替弁 １１ 接続部 １２ 給水弁 １３ ファン DESCRIPTION OF SYMBOLS 1 Water storage tank 2 Washing tank 3 Drainage channel 4 Usage flow path 5 Water storage valve 6 Control part 7 Injection pipe 8 Circulation path 9,10 Switching valve 11 Connection part 12 Water supply valve 13 Fan
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長澤 陽祐 大阪府大阪市中央区平野町四丁目１番２号 大阪瓦斯株式会社内 Ｆターム(参考） 3B082 BD01 BD05 DC02 DC03 DC04 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yosuke Nagasawa 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi, Osaka F-term in Osaka Gas Co., Ltd. (reference) 3B082 BD01 BD05 DC02 DC03 DC04
Claims (5)
溜めた水を循環させつつ食器に吹き付けて該食器を洗浄
する食器洗浄機において、 前記水溜め部とは別に設けられた貯水タンクと、 前記貯水タンクへの水の出入りを制御する制御弁と、 前記貯水タンク内の水を利用するために該タンクに接続
された利用流路と、 前記貯水タンク内の水を前記利用流路に送るための送水
ポンプと、 洗浄開始の際に前記給湯器から供給される初期水を前記
貯水タンクに導入するように前記制御弁を制御する制御
部とを備えることを特徴とする食器洗浄機。1. A dishwasher for washing tableware by circulating water stored in a water reservoir below a washing tank and connected to a water heater to wash the tableware, wherein a water reservoir provided separately from the water reservoir. A tank; a control valve for controlling the flow of water into and out of the water storage tank; a use flow path connected to the tank to use water in the water storage tank; and a use flow of water in the water storage tank. A dishwasher comprising: a water pump for sending water to a road; and a control unit that controls the control valve so that initial water supplied from the water heater is introduced into the water storage tank when washing is started. Machine.
記水溜め部に溜まるように配設されていることを特徴と
する請求項１に記載の食器洗浄機。2. The dishwasher according to claim 1, wherein the use flow path is disposed so that water passing through the use flow path is stored in the water storage section.
及び洗浄槽内の空気を排出するための換気口がさらに備
えられ、該換気口に熱交換器が設けられており、前記利
用流路は、該熱交換器における熱交換用流路に接続され
ていることを特徴とする請求項１に記載の食器洗浄機。3. A fan for sending outside air into the washing tank,
Further, a ventilation port for discharging air in the cleaning tank is further provided, and a heat exchanger is provided in the ventilation port, and the use flow path is connected to a heat exchange flow path in the heat exchanger. The dishwasher according to claim 1, wherein:
水ポンプを介して再び前記貯水タンクに接続される循環
流路であり、循環の際に食器洗浄機に設けられた少なく
とも１つのポンプの冷却に利用されることを特徴とする
請求項１に記載の食器洗浄機。4. The circulation path, wherein the utilization flow path is connected to the water storage tank again from the water storage tank via the water supply pump, and the at least one pump provided in the dishwasher at the time of circulation. The dishwasher according to claim 1, wherein the dishwasher is used for cooling.
洗浄槽からの排水の冷却に利用されることを特徴とする
請求項１に記載の食器洗浄機。5. The dishwasher according to claim 1, wherein the use channel is connected to a drain of a washing tank and is used for cooling wastewater from the washing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000004459A JP2001190479A (en) | 2000-01-13 | 2000-01-13 | Dishwasher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000004459A JP2001190479A (en) | 2000-01-13 | 2000-01-13 | Dishwasher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001190479A true JP2001190479A (en) | 2001-07-17 |
Family
ID=18533248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000004459A Pending JP2001190479A (en) | 2000-01-13 | 2000-01-13 | Dishwasher |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001190479A (en) |
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