JPH05154084A - Dish washer - Google Patents

Abstract

PURPOSE:To provide a dish washer with higher safety by arranging a heater not to be exposed into a washing tank. CONSTITUTION:A heater 11 is arranged outside the bottom of a washing tank 1 and at a position lower than a water lever detected by a water level detection means 13 being covered with a casing 12. During a washing, washing water is supplied at a supply port 14 provided at the easing 12 and delivered at a delivery port 16 provided at the easing 12 being heated with the heater 11 to be circulated within the washing tank. During a drying, outside air is sent into the casing 12 at an intake port 19 provided on the casing 12 and hot air is circulated to a delivery port 18 in the washing tank from the delivery port 18 to dry dishes. Thus, as the heater is not exposed into the washing tank, a dish washer is obtained with higher safety eliminating danger of melting which may be caused when a dish drops or touching with hands.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明はヒータに安全装置を施し
た食器洗い機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher having a heater provided with a safety device.

【０００２】[0002]

【従来の技術】近年、食器洗い機のヒータに危険防止策
を施すよう要望が高まってきている。2. Description of the Related Art In recent years, there has been an increasing demand for implementing a danger prevention measure for a heater of a dishwasher.

【０００３】以下に従来の食器洗い機について説明す
る。図３は従来の食器洗い機の構成を示すものである。
図３において、１は食器類２を内部に収納し底部に洗浄
水をためる洗浄槽、３は洗浄槽１の内底部に配置され、
回転自在に支持されて食器類２に向け洗浄水を噴出する
洗浄ノズル、４は洗浄水を洗浄ノズル３に送り込む洗浄
ポンプであり、洗浄ポンプ４はモータ５によって駆動さ
れるようになっている。６は洗浄槽１の底部に配設され
洗浄水を加熱するヒータである。７は洗浄槽１内に外気
を送り込む送風ファンであり、ケーシング８を通して外
気が洗浄槽１内に送り込まれ、排気口９より機外へ排出
されるようになっている。A conventional dishwasher will be described below. FIG. 3 shows the structure of a conventional dishwasher.
In FIG. 3, 1 is a cleaning tank for accommodating dishes 2 inside and storing cleaning water at the bottom, 3 is arranged at the inner bottom of the cleaning tank 1,
Washing nozzles 4 rotatably supported and ejecting washing water toward the dishes 2 are washing pumps for sending the washing water to the washing nozzle 3, and the washing pump 4 is driven by a motor 5. A heater 6 is provided at the bottom of the cleaning tank 1 to heat the cleaning water. Reference numeral 7 denotes a blower fan that sends the outside air into the cleaning tank 1, and the outside air is sent into the cleaning tank 1 through the casing 8 and discharged from the exhaust port 9 to the outside of the machine.

【０００４】以上の各構成要素よりなる食器洗い機につ
いて、以下その各構成要素の関係と動作について説明す
る。利用者が食器類２をかご１０に配置し、これを洗浄
槽１に収納して洗剤を入れた後運転を開始すると、ま
ず、洗浄槽１の底部に所定量の水道水が給水される。そ
して、モータ５およびヒータ６に通電され、洗浄水は加
熱されながら洗浄ポンプ４により食器類２に向けて洗浄
ノズル３から噴出される。洗浄水の温度が所定温度に到
達し、かつ、洗浄開始から所定時間経過すると洗浄行程
が終了し一旦洗浄水を排水する。つぎに、新たに水道水
が給水され前述の洗浄行程と同様の動作を数分間行い排
水する。このすすぎ行程を数回繰り返した後、加熱すす
ぎ行程と称する洗浄行程と同様の動作を行い所定温度に
到達した時点でこれを終了して排水する。最後に乾燥行
程では、送風ファン７を運転して洗浄槽１内の蒸気を機
外へ排出すると同時にヒータ６に間欠に通電を行い、食
器類２を加熱して付着している水滴を乾燥させるもので
ある。With respect to the dishwasher including the above components, the relationship and operation of the components will be described below. When the user places the tableware 2 in the basket 10, stores the dish 2 in the cleaning tank 1 and puts the detergent therein and then starts the operation, first, a predetermined amount of tap water is supplied to the bottom of the cleaning tank 1. Then, the motor 5 and the heater 6 are energized, and the washing water is jetted from the washing nozzle 3 toward the dishes 2 by the washing pump 4 while being heated. When the temperature of the cleaning water reaches a predetermined temperature and a predetermined time elapses from the start of cleaning, the cleaning process ends and the cleaning water is once drained. Next, tap water is newly supplied, and the same operation as the above-described washing process is performed for several minutes to drain the water. After repeating this rinsing step several times, the same operation as the washing step called a heat rinsing step is performed, and when the predetermined temperature is reached, the operation is finished and drained. Finally, in the drying process, the blower fan 7 is operated to discharge the steam in the cleaning tank 1 to the outside of the machine, and at the same time, the heater 6 is intermittently energized to heat the tableware 2 and dry the attached water droplets. It is a thing.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら上記の従
来の構成では、ヒータ６が洗浄槽１の底部に露出してい
るため、乾燥行程において高温となったヒータ６上に小
物プラスチック食器類が落下した場合、食器の溶解，発
臭の問題点があった。さらに、運転終了後、直ちにヒー
タ６に手を触れるとやけどをする、洗浄槽１内を掃除を
するとき邪魔になるなどの問題点があった。However, in the above-mentioned conventional configuration, since the heater 6 is exposed at the bottom of the cleaning tank 1, small plastic tableware drops on the heater 6 that has become hot during the drying process. In this case, there was a problem of dissolution of tableware and odor. Further, there are problems that the heater 6 will be burned immediately after touching the hand after the operation is completed, and it will be an obstacle when cleaning the inside of the cleaning tank 1.

【０００６】本発明は上記従来の問題点を解決するもの
で、ヒータに対する安全性の高い食器洗い機を提供する
ことを目的とする。The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a dishwasher with high safety for the heater.

【０００７】[0007]

【課題を解決するための手段】この目的を達成するため
に本発明の食器洗い機は、ヒータを洗浄槽の底外部で、
かつ水位検知手段によって検知された水位よりも低い位
置にケーシングで覆って設け、前記ケーシングは洗浄水
の循環経路および送風ファンの吸気経路の一部として兼
用したものである。To achieve this object, in the dishwasher of the present invention, a heater is provided outside the bottom of the washing tank.
In addition, the casing is provided at a position lower than the water level detected by the water level detecting means by being covered with a casing, and the casing is also used as a part of the circulation path of the wash water and the intake path of the blower fan.

【０００８】[0008]

【作用】この構成によって、洗浄行程中には洗浄ポンプ
より噴出された洗浄水がケーシング内を循環し、ヒータ
によって加熱され湯水となる。乾燥行程では、送風ファ
ンにより外気が前記ケーシング内に送り込まれ、前記ヒ
ータによって加熱され温風となり、洗浄槽内に配置され
た食器を乾燥し、発生した蒸気を機外に排出する。ま
た、前記ヒータは前記ケーシングに覆われて露出してい
ないため、乾燥行程中に小物プラスチック食器類が食器
かごから落下しても、食器の溶解，発臭等の危険性がな
い。さらに、運転終了後、直ちにヒータに手を触れると
やけどをするという危険性がなく、前記洗浄槽内がすっ
きりし、掃除をするとき邪魔にならない。With this configuration, during the cleaning process, the cleaning water ejected from the cleaning pump circulates in the casing and is heated by the heater to become hot water. In the drying process, outside air is blown into the casing by a blower fan, heated by the heater to become warm air, the dishes placed in the washing tank are dried, and the generated steam is discharged to the outside of the machine. Further, since the heater is covered with the casing and is not exposed, even if small plastic tableware falls out of the tableware basket during the drying process, there is no risk of the tableware melting, odor, etc. Furthermore, there is no risk of burns if the heater is touched immediately after the operation is completed, and the inside of the cleaning tank is neat and does not interfere with cleaning.

【０００９】また、前記ヒータが洗浄水の水位よりも低
い位置で前記洗浄槽の底外部に配置されているために、
洗浄行程中に何等かの原因で洗浄ポンプがロックし、前
記ケーシング内に水が供給されないという事態が起きて
も、前記ヒータが空焼きになる危険性は生じず、安全性
が確保される。Further, since the heater is arranged outside the bottom of the cleaning tank at a position lower than the water level of the cleaning water,
Even if the cleaning pump is locked for some reason during the cleaning process and water is not supplied into the casing, there is no danger of the heater being burnt out, and safety is ensured.

【００１０】[0010]

【実施例】以下本発明の一実施例について、図面を参照
しながら説明する。なお、従来例と同一構成部品には同
じ符号で示し説明は省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The same components as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.

【００１１】図１，図２に示すように、洗浄槽１の底外
部に配設した洗浄水を加熱するヒータ１１はケーシング
１２によって覆われている。洗浄ポンプ４の一部には洗
浄槽１内の洗浄水を所定の水位に制御するための水位検
知手段１３が設けられ、ヒータ１１はこの水位よりも下
部に位置している。ケーシング１２の端部には供給口１
４が設けられ、洗浄ポンプ４の分岐口１５と連結されて
いる。また、ケーシング１２の他端部には吐出口１６が
設けられ、連結管１７によって、洗浄槽１の吐き出し口
１８と連結されている。さらに、ケーシング１２の端部
には吸気口１９が設けられ、洗浄槽１内に外気を送り込
む送風ファン７と連結されている。As shown in FIGS. 1 and 2, a heater 12 arranged outside the bottom of the cleaning tank 1 for heating cleaning water is covered with a casing 12. A part of the cleaning pump 4 is provided with a water level detection means 13 for controlling the cleaning water in the cleaning tank 1 to a predetermined water level, and the heater 11 is located below this water level. At the end of the casing 12, the supply port 1
4 is provided and is connected to the branch port 15 of the cleaning pump 4. A discharge port 16 is provided at the other end of the casing 12 and is connected to a discharge port 18 of the cleaning tank 1 by a connecting pipe 17. Further, an intake port 19 is provided at the end of the casing 12 and is connected to a blower fan 7 that sends outside air into the cleaning tank 1.

【００１２】以上のように構成された食器洗い機につい
て、図１を用いてその動作を説明する。まず、利用者が
食器類２を食器かご１０に配置し洗浄槽１に収納して洗
剤を入れた後運転を開始すると、水位検知手段１３が所
定の水位を検知するまで洗浄槽１内に水道水が供給され
る。所定の水位に達した後洗浄行程に移るが、洗浄行程
中には洗浄ポンプ４より噴出された洗浄水が洗浄ノズル
３より噴出され食器かご１０上におかれた食器類２を洗
浄するとともに、分岐口１５よりケーシング１２内にも
導かれ、ヒータ１２によって加熱されながら吐出口１６
より送り出され、洗浄槽１の吐き出し口１８から洗浄槽
１へと循環する。洗浄ポンプ４より噴出された洗浄水
は、食器類２に直接当たり汚れを落とす水流と、ケーシ
ング１２内を加熱されながら循環する水流との２系統に
分かれて洗浄行程が行われる。このとき、ヒータ１１が
水位検知手段１３によって検知される洗浄水の水位より
も低い位置で洗浄槽１の底外部に配置されているため
に、洗浄行程中に何等かの原因で洗浄ポンプ４がロック
し、ケーシング１２内に水が供給されないという事態が
起きても、ヒータ１１が空焼きになる危険性が無いとい
う利点がある。つぎに、洗浄行程の後に続くすすぎ行
程、加熱すすぎ行程は従来例と変わらないので説明を省
略し、乾燥行程での動作を説明する。乾燥行程では、洗
浄槽１内の洗浄水が機外に排出され、洗浄ポンプ４も止
まるため、ケーシング１２内の洗浄水は、供給口１４よ
り洗浄ポンプ４内に流れ出た状態となる。この状態で送
風ファン７により外気が吸気口１９からケーシング１２
内に送り込まれ、ヒータ１１によって加熱され温風とな
り、吐出口１６から連結管１７を通って洗浄槽内吐き出
し口１８へと送り込まれる。この温風が、洗浄槽１内に
配置された食器２を乾燥し、発生した蒸気を排気口９よ
り機外に排出する。The operation of the dishwasher having the above structure will be described with reference to FIG. First, when the user places the tableware 2 in the dish basket 10 and stores it in the washing tank 1 and puts the detergent into it and starts the operation, the water level detecting means 13 supplies water to the washing tank 1 until a predetermined water level is detected. Water is supplied. After reaching the predetermined water level, the process moves to the cleaning step. During the cleaning step, the cleaning water ejected from the cleaning pump 4 is ejected from the cleaning nozzle 3 to wash the tableware 2 placed on the tableware basket 10, and The discharge port 16 is introduced into the casing 12 through the branch port 15 and heated by the heater 12.
And is circulated from the outlet 18 of the cleaning tank 1 to the cleaning tank 1. The washing water ejected from the washing pump 4 is divided into two systems, that is, a water flow that directly contacts the dishes 2 to remove dirt and a water flow that circulates while the casing 12 is being heated and is circulated. At this time, since the heater 11 is arranged outside the bottom of the cleaning tank 1 at a position lower than the water level of the cleaning water detected by the water level detection means 13, the cleaning pump 4 is not operated for some reason during the cleaning process. Even if a situation occurs in which water is not supplied into the casing 12 due to locking, there is an advantage in that the heater 11 does not have a risk of being burnt. Next, since the rinsing process and the heating rinsing process following the cleaning process are the same as those in the conventional example, the description thereof will be omitted and the operation in the drying process will be described. In the drying process, the cleaning water in the cleaning tank 1 is discharged to the outside of the machine, and the cleaning pump 4 also stops, so that the cleaning water in the casing 12 flows into the cleaning pump 4 through the supply port 14. In this state, the blower fan 7 allows outside air to flow from the intake port 19 to the casing 12
It is sent into the inside, is heated by the heater 11 and becomes warm air, and is sent from the discharge port 16 through the connecting pipe 17 to the discharge port 18 in the cleaning tank. The warm air dries the tableware 2 arranged in the cleaning tank 1, and the generated steam is discharged from the exhaust port 9 to the outside of the machine.

【００１３】以上のように本実施例によれば、洗浄行程
時はケーシング１２内に洗浄水を循環させ、乾燥行程時
はケーシング１２内を送風ファン７の風を送ることによ
り、ヒータ１１をケーシング１２で覆っても洗浄，乾燥
の機能を果たすことができる。特にヒータ１１はケーシ
ング１２に覆われて洗浄槽１内に露出していないため、
乾燥行程中に小物プラスチック食器２が食器かご１０か
ら落下しても、食器２の溶解，発臭等の危険性がない。
さらに、運転終了後、直ちにヒータ１１に手を触れると
やけどをするという危険性がなく、洗浄槽１内がすっき
りし、掃除をするとき邪魔にならない。As described above, according to the present embodiment, the washing water is circulated in the casing 12 during the washing process, and the wind of the blower fan 7 is sent through the casing 12 during the drying process, so that the heater 11 is casing. Even if covered with 12, the cleaning and drying functions can be achieved. In particular, since the heater 11 is covered with the casing 12 and is not exposed in the cleaning tank 1,
Even if the small plastic tableware 2 falls from the tableware basket 10 during the drying process, there is no risk of the tableware 2 dissolving, odor, etc.
Furthermore, there is no risk of burns if the heater 11 is touched immediately after the operation is completed, and the inside of the cleaning tank 1 is neat and does not interfere with cleaning.

【００１４】[0014]

【発明の効果】以上の実施例の説明より明らかなように
本発明は、ヒータを洗浄槽の底外部で、かつ水位検知手
段によって検知された水位よりも低い位置にケーシング
で覆って設けたことにより、すなわち前記ヒータは前記
ケーシングに覆われて露出していないため、乾燥行程中
に小物プラスチック食器が食器かごから落下しても、食
器の溶解，発臭等の危険性がない。また、運転終了後、
直ちにヒータに手を触れるとやけどをするという危険性
がなく、前記洗浄槽内がすっきりし、掃除をするとき邪
魔にならない。As is apparent from the above description of the embodiments, in the present invention, the heater is provided outside the bottom of the cleaning tank and covered with the casing at a position lower than the water level detected by the water level detection means. In other words, since the heater is covered with the casing and is not exposed, even if small plastic tableware drops from the tableware basket during the drying process, there is no risk of the tableware melting, smelling, or the like. Also, after the end of operation,
There is no risk of burns if the heater is touched immediately, and the inside of the cleaning tank is neat and does not interfere with cleaning.

【００１５】また、前記ヒータが洗浄水の水位よりも低
い位置で前記洗浄槽の底外部に配置されているために、
洗浄行程中に何等かの原因で洗浄ポンプがロックし、前
記ケーシング内に水が供給されないという事態が起きて
も、前記ヒータが空焼きになる危険性は生じず、安全性
が確保されるものである。Further, since the heater is arranged outside the bottom of the cleaning tank at a position lower than the water level of the cleaning water,
Even if the cleaning pump is locked for some reason during the cleaning process and water is not supplied into the casing, there is no danger of the heater being burned out, and safety is ensured. Is.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の第１の実施例における食器洗い機の縦
断面図FIG. 1 is a vertical sectional view of a dishwasher according to a first embodiment of the present invention.

【図２】同食器洗い機のケーシング部の詳細断面図FIG. 2 is a detailed sectional view of a casing portion of the dishwasher.

【図３】従来の食器洗い機の縦断面図FIG. 3 is a vertical cross-sectional view of a conventional dishwasher

【符号の説明】[Explanation of symbols]

１ 洗浄槽 ４ 洗浄ポンプ ７ 送風ファン １１ ヒータ １２ ケーシング １３ 水位検知手段 1 Cleaning Tank 4 Cleaning Pump 7 Blower Fan 11 Heater 12 Casing 13 Water Level Detection Means

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 食器類を収める洗浄槽と、洗浄水を噴出
する洗浄ポンプと、外気を前記洗浄槽内に送り込む送風
ファンと、前記洗浄槽内の洗浄水の水位を検知する水位
検知手段と、洗浄水を加熱するヒータとを有し、前記ヒ
ータを前記洗浄槽の底外部で、かつ前記水位検知手段に
よって検知された水位よりも低い位置に、ケーシングに
覆われて設けた食器洗い機。1. A cleaning tank for storing dishes, a cleaning pump for ejecting cleaning water, a blower fan for sending outside air into the cleaning tank, and a water level detecting means for detecting the water level of the cleaning water in the cleaning tank. A dishwasher provided with a heater for heating the wash water, the heater being provided outside the bottom of the wash tank and at a position lower than the water level detected by the water level detection means and covered with the casing. 【請求項２】 ケーシングは洗浄水の循環経路および送
風ファンの吸気経路の一部として兼用した請求項１記載
の食器洗い機。2. The dishwasher according to claim 1, wherein the casing is used as both a circulation path of the wash water and a part of an intake path of the blower fan.