JP2003304995A - Dishwasher/dryer - Google Patents

Dishwasher/dryer

Info

Publication number
JP2003304995A
JP2003304995A JP2002111694A JP2002111694A JP2003304995A JP 2003304995 A JP2003304995 A JP 2003304995A JP 2002111694 A JP2002111694 A JP 2002111694A JP 2002111694 A JP2002111694 A JP 2002111694A JP 2003304995 A JP2003304995 A JP 2003304995A
Authority
JP
Japan
Prior art keywords
air
cleaning tank
exhaust port
dishwasher
exhaust
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.)
Granted
Application number
JP2002111694A
Other languages
Japanese (ja)
Other versions
JP2003304995A5 (en
JP4103433B2 (en
Inventor
Fumihiko Sasahara
文彦 笹原
Morinori Fukuda
守記 福田
Yutaka Taniguchi
裕 谷口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2002111694A priority Critical patent/JP4103433B2/en
Publication of JP2003304995A publication Critical patent/JP2003304995A/en
Publication of JP2003304995A5 publication Critical patent/JP2003304995A5/ja
Application granted granted Critical
Publication of JP4103433B2 publication Critical patent/JP4103433B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

<P>PROBLEM TO BE SOLVED: To ensure safety of heated air which is discharged from an air discharging port, and in addition, to increase the drying efficiency without reducing the performance of a heating means, and also, without reducing the air volume of a blowing means for a dishwasher/dryer which performs the drying of tableware after washing them. <P>SOLUTION: The tableware 3 are dried by increasing a temperature in a washing tank 11 which houses the tableware 3 by a heater 6. The air-discharging port 13 which feeds the outside air into the washing tank 11 by the blowing means 7, and discharges the heated air in the washing tank 11 to the outside of the tank, and the inside of the washing tank 11 are connected by an air- discharging passage 14. The air-discharging passage 14 is constituted of an elongated passage while being thermally insulated from the washing tank 11. <P>COPYRIGHT: (C)2004,JPO

Description

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

【0001】[0001]

【発明の属する技術分野】本発明は、洗浄後の食器類の
乾燥を行う食器洗い乾燥機に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher / dryer for drying dishes after washing.

【0002】[0002]

【従来の技術】従来、この種の食器洗い乾燥機は図9に
示すように構成していた。以下、その構成について説明
する。
2. Description of the Related Art Conventionally, this type of dishwasher has been constructed as shown in FIG. The configuration will be described below.

【0003】図9に示すように、洗浄槽1は、食器洗い
機本体A内に設け、この洗浄槽1内の底部の略中央に洗
浄水を噴射するノズル2を回転自在に設けるとともに、
洗浄槽1内に食器類3を配置する食器かご4を設けてい
る。洗浄ポンプ5は洗浄槽1内の洗浄水を循環するもの
であり、ヒータ6は洗浄水を加熱して湯にするときなど
に使用する加熱手段である。このヒータ6は、洗浄行程
終了後の乾燥行程では洗浄水を蒸発させるために、洗浄
槽1内の温度の上昇に、また、直接に食器類3を温める
ことに使用するようにしている。送風手段7は、洗浄槽
1の外部底部に設けている。なお、8は排水ポンプであ
る。
As shown in FIG. 9, a washing tub 1 is provided in a dishwasher main body A, and a nozzle 2 for injecting washing water is rotatably provided at a substantially center of a bottom portion of the washing tub 1.
A tableware basket 4 for disposing tableware 3 is provided in the cleaning tank 1. The cleaning pump 5 circulates the cleaning water in the cleaning tank 1, and the heater 6 is a heating means used when heating the cleaning water to hot water. The heater 6 is used for elevating the temperature in the cleaning tank 1 and for directly warming the dishes 3 in order to evaporate the cleaning water in the drying process after the completion of the cleaning process. The blower 7 is provided on the outer bottom of the cleaning tank 1. In addition, 8 is a drainage pump.

【0004】上記構成において動作を説明する。まず、
食器かご4に食器類3を配置して洗浄槽1内に収容し、
運転を開始すると、給水弁(図示せず)より洗浄槽1内
に所定量の給水した後、洗浄ポンプ5を駆動する。洗浄
槽1内の洗浄水は、洗浄ポンプ5にて排水口9から吸い
込まれてノズル2に圧送され、回転するノズル2により
勢いよく噴射される。
The operation of the above configuration will be described. First,
Place the dishes 3 in the dish basket 4 and store them in the washing tank 1,
When the operation is started, a predetermined amount of water is supplied into the cleaning tank 1 from a water supply valve (not shown), and then the cleaning pump 5 is driven. The cleaning water in the cleaning tank 1 is sucked from the drainage port 9 by the cleaning pump 5, pressure-fed to the nozzle 2, and jetted vigorously by the rotating nozzle 2.

【0005】この洗浄水によって、食器かご4に配置し
た食器類3を洗浄する。その後、再び洗浄水は洗浄ポン
プ5にて排水口9から吸い込まれ、上記の動作を繰り返
す。この洗浄水が循環する過程で、洗浄水が洗浄槽1内
に入ったとき、ヒータ6によって温水化される。洗浄水
の循環の繰り返しによって食器かご4に配置した食器類
3を洗浄する。
The tableware 3 placed in the tableware basket 4 is washed with this wash water. Then, the washing water is again sucked from the drainage port 9 by the washing pump 5, and the above operation is repeated. When the cleaning water enters the cleaning tank 1 in the process of circulating the cleaning water, it is heated by the heater 6. The dishes 3 placed in the dish basket 4 are washed by repeating the circulation of the wash water.

【0006】この洗浄行程終了後に、排水ポンプ8を運
転し、排水口9から洗浄水を槽外に排出し、乾燥行程が
始まる。排出後、再びヒータ6を加熱することにより、
洗浄槽1内の温度を上昇させ、また、直接には食器類3
を温め、食器類3、食器かご4に付着した水滴、洗浄槽
1内に残った水滴を蒸発させる。この蒸発した水分を多
量に含んだ加熱空気は、送風手段7により洗浄槽1内に
外気を供給することにより、洗浄槽1外へ排気口10か
ら押し出される。この加熱、送風の繰り返しにより、食
器類3を徐々に乾燥することができる。
After the completion of the cleaning process, the drainage pump 8 is operated, the cleaning water is discharged from the drainage port 9 to the outside of the tank, and the drying process is started. After discharging, by heating the heater 6 again,
The temperature in the washing tank 1 is raised, and the dishes 3
Is heated to evaporate the water drops attached to the tableware 3 and the tableware basket 4 and the water drops remaining in the cleaning tank 1. The heated air containing a large amount of the evaporated moisture is pushed out of the cleaning tank 1 through the exhaust port 10 by supplying the outside air into the cleaning tank 1 by the blower 7. By repeating this heating and blowing, the tableware 3 can be gradually dried.

【0007】[0007]

【発明が解決しようとする課題】このような従来の食器
洗い乾燥機で、洗浄後の食器類3を効率的に乾燥させる
ためには、ヒータ6などの加熱手段などにより、洗浄槽
1内の温度を上昇させ、また、食器類3を直接温めて、
食器類3、食器かご4に付着した水滴、洗浄槽1内に残
った水滴の蒸発速度を高め、蒸発した水分を多量に含ん
だ加熱空気を送風手段7により洗浄槽1内に外気を供給
し、洗浄槽1外へはやく押し出すことが必要である。
In such a conventional dishwasher / dryer, in order to efficiently dry the dishware 3 after washing, the temperature in the washing tank 1 is changed by a heating means such as a heater 6. And heat the tableware 3 directly,
The rate of evaporation of water drops adhering to the tableware 3 and the tableware basket 4 and the water drops remaining in the cleaning tank 1 is increased, and heated air containing a large amount of the evaporated water is supplied into the cleaning tank 1 by the blowing means 7 to the outside air. It is necessary to push it out of the cleaning tank 1 quickly.

【0008】しかしながら、ヒータ6の能力を高くすれ
ばするほど、また、送風手段7の風量を多くすればする
ほど、高温の蒸気が排気口10から一度に多量に洗浄槽
1外に排出されることになる。この蒸気の温度は、約7
0℃〜80℃と高く、相対湿度も約100%と極めて高
く、直接当たると火傷などの危険性がある。そのため
に、排気口10から出る蒸気を多量に含んだ加熱空気の
温度、湿度を下げることが必要である。
However, the higher the capacity of the heater 6 and the larger the air volume of the blowing means 7, the larger amount of high temperature steam is discharged from the exhaust port 10 to the outside of the cleaning tank 1 at a time. It will be. The temperature of this steam is about 7
The temperature is as high as 0 ° C to 80 ° C and the relative humidity is as high as about 100%. Therefore, it is necessary to lower the temperature and humidity of the heated air containing a large amount of steam discharged from the exhaust port 10.

【0009】しかし、安全を考えて、ヒータ6の能力を
低くすれば、また、送風手段7の風量を少なくすれば、
逆に乾燥の効率が悪くなる。
However, in consideration of safety, if the capacity of the heater 6 is lowered, or if the air volume of the blowing means 7 is reduced,
On the contrary, the drying efficiency becomes poor.

【0010】本発明は上記従来の課題を解決するもの
で、加熱手段の能力を低くしなくとも、送風手段の風量
を少なくしなくとも、排気口から出る加熱空気の安全性
を確保し、しかも、乾燥の効率も上げることを目的とし
ている。
The present invention solves the above-mentioned conventional problems, and secures the safety of the heated air discharged from the exhaust port without lowering the capacity of the heating means or reducing the air volume of the blowing means. The purpose is to improve the drying efficiency.

【0011】[0011]

【課題を解決するための手段】本発明は上記目的を達成
するために、食器類を収容する洗浄槽内の温度を加熱手
段により上昇させて食器類を乾燥させ、送風手段により
外気を洗浄槽内に供給し、洗浄槽内の加熱空気を槽外へ
排出する排気口と洗浄槽内とを排気通路により連結する
よう構成し、排気通路は、細長い通路により洗浄槽と熱
絶縁して構成したものである。
In order to achieve the above-mentioned object, the present invention raises the temperature in a washing tank containing dishes by a heating means to dry the dishes and blows the outside air into the washing tank. The exhaust port is configured to be connected to the inside of the cleaning tank by an exhaust passage, and the exhaust passage is thermally insulated from the cleaning tank by an elongated passage. It is a thing.

【0012】これにより、蒸気を多量に含んだ加熱空気
が細長い排気通路を通過する間に熱交換して加熱空気の
温度が下がり、結露して湿度も下げることができて、排
気口から出る加熱空気の安全性を確保することができ
る。また、細長い排気通路を長くすれば熱交換の能力が
上がり、加熱手段の能力を高くしても、送風手段の風量
を多くしても、排気口から出る加熱空気の温度、湿度を
一層下げることができ、乾燥の効率も上げることができ
る。
[0012] As a result, the heated air containing a large amount of steam exchanges heat while passing through the elongated exhaust passage, the temperature of the heated air is lowered, and dew condensation and humidity can be lowered, and the heating air discharged from the exhaust port is heated. The safety of air can be secured. Also, if the elongated exhaust passage is made longer, the heat exchange capacity will be improved, and even if the capacity of the heating means is increased or the air volume of the blowing means is increased, the temperature and humidity of the heated air discharged from the exhaust port will be further reduced. It is possible to improve the drying efficiency.

【0013】[0013]

【発明の実施の形態】本発明の請求項1に記載の発明
は、食器類を収容する洗浄槽と、前記洗浄槽内の温度を
上昇させ食器類を乾燥させる加熱手段と、外気を前記洗
浄槽内に供給する送風手段と、前記洗浄槽内の加熱空気
を槽外へ排出する排気口と、前記洗浄槽内と前記排気口
とを連結する排気通路とを具備し、前記排気通路は、細
長い通路により前記洗浄槽と熱絶縁して構成したもので
あり、蒸気を多量に含んだ加熱空気が排気通路を通過す
る間に、排気通路壁と熱交換して加熱空気の温度が下が
り、しかも、排気通路は洗浄槽と熱絶縁して細長い通路
にしているので、熱交換するために加熱空気と接する排
気通路の壁面の面積は、通路長×外周で表されるので非
常に大きく確保でき、熱交換の能力を大きくすることが
できる。また、排気通路の材質を熱容量の高いものにす
ればその効果は高くなる。この熱交換は、加熱空気の温
度が70℃〜80℃と高く、排気通路は常温であるため
に、大きな温度差ができて可能となる。したがって、排
気通路は洗浄槽と熱絶縁することが必要である。しか
も、加熱蒸気の温度が下がることにより、飽和水分量が
低くなるので、加熱蒸気の水分の一部が結露して排気通
路に残る。この結露水と加熱蒸気との間でも、新たに熱
交換が生じ、効果は一層高くなる。よって、加熱蒸気の
温度も下がり、絶対湿度も下げ、排気口からでる加熱空
気の安全性を確保することができる。
BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is a washing tank for holding dishes, a heating means for raising the temperature in the washing tank to dry the dishes, and the outside air for the washing. An air supply unit that supplies air into the tank, an exhaust port that discharges the heated air in the cleaning tank to the outside of the tank, and an exhaust passage that connects the inside of the cleaning tank and the exhaust port, the exhaust passage, It is configured to be thermally insulated from the cleaning tank by an elongated passage, and while the heated air containing a large amount of steam passes through the exhaust passage, heat exchanges with the exhaust passage wall to lower the temperature of the heated air. Since the exhaust passage is thermally insulated from the cleaning tank to form a narrow passage, the area of the wall surface of the exhaust passage in contact with the heated air for heat exchange can be ensured to be very large because it is represented by passage length × outer circumference. The heat exchange capacity can be increased. Further, if the material of the exhaust passage has a high heat capacity, the effect is enhanced. This heat exchange is possible because the temperature of the heated air is as high as 70 ° C. to 80 ° C. and the exhaust passage is at room temperature, so a large temperature difference can be made. Therefore, it is necessary that the exhaust passage is thermally insulated from the cleaning tank. Moreover, since the temperature of the heating steam is lowered, the saturated water content is reduced, so that a part of the water content of the heating steam is condensed and remains in the exhaust passage. Even between the condensed water and the heated steam, heat exchange is newly generated, and the effect is further enhanced. Therefore, the temperature of the heated steam is lowered, the absolute humidity is also lowered, and the safety of the heated air discharged from the exhaust port can be ensured.

【0014】また、細長い排気通路をもっと長くすれ
ば、熱交換の能力が上がり、加熱手段の能力を高くして
も、送風手段の風量を多くしても、排気口から出る加熱
空気の温度、湿度を一層下げることができ、しかも、乾
燥の効率を上げることができる。
Further, if the elongate exhaust passage is made longer, the heat exchanging ability is improved, and even if the capacity of the heating means is increased or the air volume of the blowing means is increased, the temperature of the heated air discharged from the exhaust port, Humidity can be further reduced, and the efficiency of drying can be increased.

【0015】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、排気通路は、洗浄槽と分離して外
壁との間に空間を有する構成としたものであり、熱交換
するために、排気通路を洗浄槽と熱絶縁する耐熱シート
などの特別な部材を新たに使用しなくとも、洗浄槽から
分離することにより空気絶縁ができ、熱交換の効果を得
ることができる。
According to a second aspect of the present invention, in the above-mentioned first aspect of the invention, the exhaust passage is separated from the washing tank and has a space between the outer wall and the outer wall for heat exchange. Therefore, even if a special member such as a heat-resistant sheet that thermally insulates the exhaust passage from the cleaning tank is not used, air insulation can be achieved by separating the exhaust passage from the cleaning tank, and a heat exchange effect can be obtained.

【0016】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、排気口を食器洗い乾燥機
本体の前面に設け、加熱空気を排出する排出口を洗浄槽
の後面に設け、前記排気口と排出口とを排気通路で連結
したものであり、熱交換の効率を上げるために、排気通
路を長くする必要があっても、同じ場所で曲げなくても
排気通路の長さを確保できる。しかも、曲げ回数が少な
いので、通路圧損も少ない。また、同じ場所で熱交換が
集中しないので、熱交換の効率が低下しないようにでき
る。
According to a third aspect of the present invention, in the invention according to the first or second aspect, an exhaust port is provided on the front surface of the dishwasher main body, and an exhaust port for discharging heated air is provided on the rear surface of the cleaning tank. , The exhaust port and the exhaust port are connected by an exhaust passage, the length of the exhaust passage does not need to be bent at the same place even if it is necessary to lengthen the exhaust passage in order to improve the efficiency of heat exchange. Can be secured. Moreover, since the number of bends is small, the passage pressure loss is also small. Further, since heat exchange does not concentrate at the same place, heat exchange efficiency can be prevented from decreasing.

【0017】請求項4に記載の発明は、上記請求項1〜
3に記載の発明において、送風手段は、乾燥運転開始か
ら所定時間は少ない風量で運転し、その後は風量が多く
なるように風量を調整するよう構成したものであり、洗
浄運転終了後の洗浄槽内の温度は約70℃〜80℃と高
く、相対湿度も約100%ときわめて高い。この加熱蒸
気が少しずつ徐々に熱交換されるので熱交換の効率もよ
くなる、よって、高温の蒸気が排気口から一度に多量に
洗浄槽外に排出されるという危険性もさらに低くなり、
一層、安全性を向上することができる。
The invention according to claim 4 is the above-mentioned claim 1.
In the invention described in 3, the blower unit is configured to operate with a small air volume for a predetermined time from the start of the drying operation, and thereafter adjust the air volume so that the air volume increases, and the cleaning tank after the cleaning operation is completed. The internal temperature is as high as about 70 ° C to 80 ° C, and the relative humidity is also extremely high at about 100%. Since this heated steam is gradually heat-exchanged little by little, the efficiency of heat exchange is also improved. Therefore, the risk that a large amount of high-temperature steam is exhausted from the exhaust port to the outside of the cleaning tank at once is further reduced,
The safety can be further improved.

【0018】請求項5に記載の発明は、上記請求項1〜
4に記載の発明において、排気口に空気を通し、かつ、
蒸気を吸収する特性を有する吸湿素材のフィルターを設
けたものであり、排気口の出口部のところで湿った加熱
空気の蒸気を吸収するので、上述のように排気通路を設
けた効果に加え、より一層排気口から出る加熱空気の湿
度を下げることができ、安全性を向上することができ
る。
The invention described in claim 5 is the above-mentioned claim 1.
In the invention described in 4, the air is passed through the exhaust port, and
It is provided with a filter of a hygroscopic material having a property of absorbing vapor, and absorbs the vapor of moist heated air at the outlet of the exhaust port, so in addition to the effect of providing the exhaust passage as described above, The humidity of the heated air discharged from the exhaust port can be further reduced, and the safety can be improved.

【0019】請求項6に記載の発明は、上記請求項1〜
5に記載の発明において、送風手段に第2の送風路を設
けて排気通路に連通させ、洗浄槽内から排出された加熱
空気と、送風手段からの外気を混合して、排気口から排
気するよう構成したものであり、排気口の直前の排気通
路のところで、洗浄槽から排出された湿った加熱蒸気
と、第2の送風路より乾いた常温の空気が混合され、排
気口までの通路の中で混合され、上述のように細長い排
気通路を設けた効果に加え、より一層排気口から出る加
熱空気の温度、湿度を下げることができ、安全性を向上
することができる。
The invention according to claim 6 is the above-mentioned claim 1.
In the invention described in 5, the air blower is provided with a second air blow passage to communicate with the exhaust passage, and the heated air discharged from the cleaning tank and the outside air from the air blower are mixed and exhausted from the exhaust port. In the exhaust passage immediately before the exhaust port, the moist heated steam discharged from the cleaning tank is mixed with the air at room temperature that is dry from the second air passage, and the passage to the exhaust port is formed. In addition to the effect of providing the elongated exhaust passage as described above, the temperature and humidity of the heated air discharged from the exhaust port can be further lowered, and safety can be improved.

【0020】請求項7に記載の発明は、上記請求項1〜
6に記載の発明において、排気通路の経路途中に、空気
を通し、かつ、排気温度を下げる冷却手段を設けたもの
であり、湿った加熱蒸気が排気通路内の冷却手段を通過
するときに熱交換を行い、熱交換された加熱空気は排気
口へと排出され、熱交換前の加熱空気が新たに冷却手段
を通過するので、連続的に熱交換され効率がよい。しか
も、吸熱側の能力が高く維持されるので、高い効率を維
持することができる。よって、上述のように排気通路を
設けた効果に加え、より一層排気口から出る加熱空気の
温度、湿度を下げることができ、安全性を向上すること
ができる。
The invention according to claim 7 is the above-mentioned claim 1.
In the invention described in the sixth aspect, cooling means for passing air and lowering the exhaust temperature is provided in the middle of the path of the exhaust passage, and heat is generated when the moist heated steam passes through the cooling means in the exhaust passage. The heated and heat-exchanged heated air is discharged to the exhaust port, and the heated air before the heat exchange newly passes through the cooling means, so that the heat is continuously exchanged and the efficiency is good. Moreover, since the capacity on the heat absorption side is maintained high, high efficiency can be maintained. Therefore, in addition to the effect of providing the exhaust passage as described above, the temperature and humidity of the heated air discharged from the exhaust port can be further lowered, and the safety can be improved.

【0021】請求項8に記載の発明は、上記請求項1〜
7に記載の発明において、洗浄槽内に外気を供給する入
口と、洗浄槽内から加熱空気を排出する排出口を、洗浄
槽の対角に位置するように設け、かつ、前記排出口は、
洗浄槽の上部に設けたものであり、洗浄槽内の加熱空気
がショートパスすることなく、洗浄槽内を流れ、また、
加熱空気の排出する排出口を上部に設けたことにより、
暖かい空気は上部に流れるという対流の効果も得られる
ので、より一層洗浄槽内の加熱空気の排出効率と熱交換
の効率をよくすることができる。よって、より一層排気
口から出る加熱空気の温度、湿度を下げることができ、
安全性を向上することができる。
The invention described in claim 8 is the above-mentioned claim 1.
In the invention described in 7, the inlet for supplying the outside air into the cleaning tank and the outlet for discharging the heated air from the inside of the cleaning tank are provided so as to be positioned diagonally to each other, and the outlet is
It is provided in the upper part of the cleaning tank, and the heated air in the cleaning tank flows in the cleaning tank without short-pass, and
By providing a discharge port for discharging heated air at the top,
Since the convection effect that warm air flows to the upper part is also obtained, it is possible to further improve the discharge efficiency of the heated air in the cleaning tank and the heat exchange efficiency. Therefore, it is possible to further reduce the temperature and humidity of the heated air discharged from the exhaust port,
The safety can be improved.

【0022】請求項9に記載の発明は、上記請求項1〜
8に記載の発明において、洗浄槽内に外気を供給する入
口の風の流れ方向と、洗浄槽内に設けた加熱手段の長手
方向とが一致するよう構成したものであり、送風手段に
より洗浄槽内に供給された常温の外気の加熱効率がよく
なり、したがって、外気の温度が上昇するので、飽和蒸
気水分量が高くなり、洗浄槽内の湿気を吸収する効率が
よくなり、洗浄槽内の熱交換の効率を向上することがで
きる。よって、より一層排気口から出る加熱空気の温
度、湿度を下げることができ、安全性を向上することが
できる。
The invention according to claim 9 is the above-mentioned claim 1.
In the invention described in Item 8, the flow direction of the wind at the inlet for supplying the outside air into the cleaning tank and the longitudinal direction of the heating means provided in the cleaning tank coincide with each other. The heating efficiency of the outside air at room temperature supplied to the inside is improved, and therefore the temperature of the outside air rises, the saturated steam moisture content increases, the efficiency of absorbing moisture in the cleaning tank improves, and the inside of the cleaning tank increases. The efficiency of heat exchange can be improved. Therefore, the temperature and humidity of the heated air discharged from the exhaust port can be further lowered, and the safety can be improved.

【0023】[0023]

【実施例】以下、本発明の実施例について、図面を参照
しながら説明する。なお、従来例と同じ構成のものは同
一符号を付して説明を省略する。
Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

【0024】(実施例1)図1に示すように、洗浄槽1
1は、食器洗い機本体12内に設け、この洗浄槽11内
に食器類3を配置する食器かご4を設けている。ヒータ
6は洗浄水を加熱して湯にするときなどに使用する加熱
手段で、このヒータ6は、洗浄行程終了後の乾燥行程で
は洗浄水を蒸発させるために、洗浄槽11内の温度の上
昇に、また、直接に食器類3を温めることに使用するよ
うにしている。
(Example 1) As shown in FIG.
1 is provided in a dishwasher main body 12, and a dish basket 4 in which dishware 3 is placed is provided in the washing tank 11. The heater 6 is a heating means used when heating the wash water into hot water. The heater 6 elevates the temperature in the wash tank 11 in order to evaporate the wash water in the drying step after the washing step. In addition, it is also used for directly heating the tableware 3.

【0025】送風手段7は、洗浄槽11の外部底部に設
け、第1の送風路7aを通して外気を洗浄槽11内に供
給するようにしている。排気口13は、洗浄槽11内の
加熱空気を槽外へ排出するもので、洗浄槽11内と排気
口13とを細長い排気通路14で連結し、排気通路14
は洗浄槽11と熱絶縁して構成している。
The blower means 7 is provided at the outer bottom of the cleaning tank 11 so that the outside air is supplied into the cleaning tank 11 through the first air passage 7a. The exhaust port 13 discharges the heated air in the cleaning tank 11 to the outside of the tank. The exhaust port 13 connects the inside of the cleaning tank 11 and the exhaust port 13 with an elongated exhaust passage 14, and the exhaust passage 14
Is thermally insulated from the cleaning tank 11.

【0026】上記構成において動作を説明する。まず、
食器かご4に食器類3の配置して洗浄槽11内に収納
し、運転を開始すると、給水弁(図示せず)より洗浄槽
11内に所定量の給水した後、洗浄ポンプ5を駆動す
る。洗浄槽11内の洗浄水は、洗浄ポンプ5にて排水口
9から吸い込まれてノズル2に圧送され、回転するノズ
ル2により勢いよく噴射される。
The operation of the above configuration will be described. First,
When the dishes 3 are placed in the dish basket 4 and stored in the washing tank 11 and the operation is started, the washing pump 5 is driven after supplying a predetermined amount of water from the water supply valve (not shown) into the washing tank 11. . The cleaning water in the cleaning tank 11 is sucked from the drainage port 9 by the cleaning pump 5, pressure-fed to the nozzle 2, and jetted vigorously by the rotating nozzle 2.

【0027】この洗浄水によって、食器かご4に配置し
た食器類3を洗浄する。その後、再び洗浄水は洗浄ポン
プ5にて排水口9から吸い込まれ、上記の動作を繰り返
す。この洗浄水が循環する過程で、洗浄水が洗浄槽11
内に入ったとき、ヒータ6などの加熱手段によって温水
化される。洗浄水の循環の繰り返しによって食器かご4
に配置した食器類3を洗浄する。
The tableware 3 placed in the tableware basket 4 is washed with this wash water. Then, the washing water is again sucked from the drainage port 9 by the washing pump 5, and the above operation is repeated. In the process of circulating this cleaning water, the cleaning water is washed by the cleaning tank 11.
When it enters the inside, it is heated by the heating means such as the heater 6. Tableware basket 4 by repeated circulation of wash water
The tableware 3 placed in is washed.

【0028】この洗浄行程終了後に、排水ポンプ8を運
転し、排水口9から、洗浄水を槽外に排出し、乾燥行程
が始まる。排出した後、再びヒータ6を加熱することに
より、洗浄槽11内の温度を上昇させ、また、直接には
食器類3を温め、食器類3、食器かご4に付着した水
滴、洗浄槽11内に残った水滴を蒸発させる。
After the completion of this cleaning process, the drainage pump 8 is operated, the cleaning water is discharged from the drainage port 9 to the outside of the tank, and the drying process is started. After discharging, the heater 6 is heated again to raise the temperature in the cleaning tank 11 and directly heat the tableware 3 to drop water drops on the tableware 3 and the tableware basket 4, inside the cleaning tank 11. Evaporate the remaining water drops.

【0029】この蒸発した水分を多量に含んだ加熱空気
は、送風手段7により洗浄槽11内に、第1の送風路7
aを通って外気を供給することにより、洗浄槽11外へ
排気口13から押し出される。このとき、外気は洗浄槽
11内へは外気を供給する入口11aから入り、加熱空
気は洗浄槽11内からは加熱空気を排出する排出口11
bより出る。この加熱、送風手段の繰り返しにより、食
器類3を徐々に乾燥することができる。
The heated air containing a large amount of the evaporated water is blown into the cleaning tank 11 by the blowing means 7 and the first blowing passage 7 is formed.
By supplying outside air through a, it is pushed out of the cleaning tank 11 through the exhaust port 13. At this time, the outside air enters the cleaning tank 11 through the inlet 11a for supplying the outside air, and the heating air discharges the heating air from the inside of the cleaning tank 11.
Get out of b. By repeating this heating and blowing means, the tableware 3 can be gradually dried.

【0030】これにより、蒸気を多量に含んだ加熱空気
が、細長い排気通路14を通過する間に、排気通路14
の壁面と熱交換して加熱空気の温度が下がる。しかも、
排気通路14は洗浄槽11と熱絶縁して細長い通路にし
たことにより、熱交換するために、加熱空気と接する排
気通路14の壁面の面積は、通路長×外周で表されるの
で非常に大きく確保できる。よって、熱交換能力を大き
くすることができる。
As a result, the heated air containing a large amount of steam passes through the exhaust passage 14 while passing through the elongated exhaust passage 14.
The temperature of the heated air will drop by exchanging heat with the wall surface. Moreover,
Since the exhaust passage 14 is thermally insulated from the cleaning tank 11 to form a narrow passage, the wall area of the exhaust passage 14 in contact with the heated air for heat exchange is very large because it is represented by passage length × outer circumference. Can be secured. Therefore, the heat exchange capacity can be increased.

【0031】排気通路14の材質を熱容量の高いものに
すれば、沢山の熱量を蓄えることができるので、その効
果は高くなる。この熱交換は、加熱空気の温度が70℃
〜80℃と高く、排気通路14は常温であるために、大
きな温度差ができて可能となる。したがって、排気通路
14は洗浄槽11と熱絶縁することが必要である。
If the exhaust passage 14 is made of a material having a high heat capacity, a large amount of heat can be stored, so that the effect is enhanced. In this heat exchange, the temperature of the heated air is 70 ° C.
Since the temperature is as high as -80 ° C and the exhaust passage 14 is at room temperature, a large temperature difference is possible. Therefore, the exhaust passage 14 needs to be thermally insulated from the cleaning tank 11.

【0032】しかも、加熱蒸気の温度が下がることによ
り、飽和水分量が低くなるので、加熱蒸気の水分の一部
が結露して排気通路に残る。この結露水と加熱蒸気との
間でも新たに熱交換が生じ、効果は一層高くなる。よっ
て、加熱蒸気の温度も下がり、絶対湿度も下げ、排気口
13から出る加熱空気の安全性を確保することができ
る。
Moreover, since the saturated water content decreases due to the decrease in the temperature of the heating steam, a part of the water content of the heating steam is condensed and remains in the exhaust passage. The heat is newly generated between the condensed water and the heated steam, and the effect is further enhanced. Therefore, the temperature of the heated steam is lowered, the absolute humidity is also lowered, and the safety of the heated air discharged from the exhaust port 13 can be ensured.

【0033】また、細長い排気通路14を長くすれば、
熱交換の能力が上がり、ヒータ6などの加熱手段の能力
を高くしても、送風手段7の風量を多くしても、排気口
13から出る加熱空気の温度、湿度を一層下げることが
でき、しかも、乾燥効率も上げることができる。
If the elongated exhaust passage 14 is lengthened,
Even if the capacity of the heat exchange is increased and the capacity of the heating means such as the heater 6 is increased or the air volume of the blower means 7 is increased, the temperature and humidity of the heated air discharged from the exhaust port 13 can be further reduced. Moreover, the drying efficiency can be increased.

【0034】しかも、乾燥時に排気口13より排出され
る蒸気は一回の運転でも約100mlと非常に多いた
め、住まいの湿気の問題も引き起こす。しかし、本実施
例では加熱空気の湿度も下げることができるので、湿気
の問題も改善される。
Moreover, the amount of steam discharged from the exhaust port 13 during drying is as large as about 100 ml even in one operation, which causes a problem of dampness in the house. However, in the present embodiment, the humidity of the heated air can be lowered, so that the problem of humidity is improved.

【0035】また、本実施例のように、細長い排気通路
14を洗浄槽11と分離して設ければ、これにより熱交
換するために、細長い排気通路14を洗浄槽11と熱絶
縁する耐熱シートなどの特別な部材を新たに使用しなく
とも、洗浄槽11から分離することにより、空気絶縁が
でき、熱交換の効果を得ることができる。
If the elongated exhaust passage 14 is provided separately from the cleaning tank 11 as in this embodiment, a heat-resistant sheet for thermally insulating the elongated exhaust passage 14 from the cleaning tank 11 for heat exchange. Even if a special member such as is not newly used, air separation can be performed by separating the cleaning tank 11 from the cleaning tank 11, and the effect of heat exchange can be obtained.

【0036】図2は、排気通路14を用いた本実施例
と、従来例の排気口13の温度変化を示したグラフ(本
実施例は点線で図示し、従来例は実線で図示)である
が、本実施例の最高温度と従来例の最高温度を比較する
と、温度差が約20℃あることがわかる。また、本実施
例の最高温度がお風呂の浴槽温度と同じ約40℃台であ
ることから、従来例の約70℃と比べ、非常に安全にな
っていることがわかる。
FIG. 2 is a graph showing the temperature change of the exhaust port 13 of the present embodiment using the exhaust passage 14 and the conventional example (this embodiment is shown by a dotted line, the conventional example is shown by a solid line). However, comparing the maximum temperature of this example with the maximum temperature of the conventional example, it can be seen that the temperature difference is about 20 ° C. Further, since the maximum temperature of this embodiment is about 40 ° C. which is the same as the bath temperature of the bath, it can be seen that it is much safer than about 70 ° C. of the conventional example.

【0037】(実施例2)図3に示すように、排気口1
3を食器洗い乾燥機本体12の前面に設け、洗浄槽11
から加熱空気を排出する排出口11bを洗浄槽11の後
面に設け、排気通路14で連結している。他の構成は上
記実施例1と同じである。
Example 2 As shown in FIG. 3, the exhaust port 1
3 is provided on the front of the dishwasher main body 12, and the washing tank 11
An exhaust port 11b for exhausting heated air from is provided on the rear surface of the cleaning tank 11 and is connected by an exhaust passage 14. The other structure is the same as that of the first embodiment.

【0038】上記構成において動作を説明する。なお、
食器洗い機の基本的な動作は上記実施例1と同じである
ので説明を省略する。
The operation of the above configuration will be described. In addition,
Since the basic operation of the dishwasher is the same as that of the above-mentioned first embodiment, the explanation is omitted.

【0039】熱交換の効率を上げるために、排気通路1
4の長さを長くする必要があっても、洗浄槽11から加
熱空気を排出する排出口11bを洗浄槽11の後面に設
けたことにより、同じ場所で曲げなくても排気通路14
の長さを確保できる。しかも、曲げ回数が少ないので、
通路圧損も少ない。また、同じ場所で熱交換が集中しな
いので、熱交換の効率も低下しないようにできる。
In order to increase the efficiency of heat exchange, the exhaust passage 1
Even if it is necessary to increase the length of the exhaust tank 4, the exhaust port 11b for exhausting heated air from the cleaning tank 11 is provided on the rear surface of the cleaning tank 11, so that the exhaust passage 14 can be formed without bending at the same place.
The length of can be secured. Moreover, since the number of bends is small,
There is little passage pressure loss. Further, since heat exchange does not concentrate at the same place, heat exchange efficiency can be prevented from lowering.

【0040】排気通路14が食器洗い機本体12内に構
成されているので、仮に、同じ場所で排気通路14を曲
げ構成すると同じ場所で熱交換が集中するので、熱絶縁
しないと熱交換の効率が悪くなる。また、排気通路14
圧損も高くなるので、送風手段7の大型化の必要性、駆
動エネルギーの増大が生じよくない。また、ビルトイン
の食器洗い乾燥機の場合は設置上の問題で、前面以外の
排気は流し台の部材の結露等を引き起こすので、前面に
することが絶対に必要である。
Since the exhaust passage 14 is formed in the dishwasher main body 12, if the exhaust passage 14 is bent at the same location, heat exchange concentrates at the same location. become worse. In addition, the exhaust passage 14
Since the pressure loss is also high, it is not good that the blower 7 needs to be upsized and drive energy increases. Further, in the case of a built-in dishwasher, there is a problem in installation, and exhaust air other than the front surface causes dew condensation on the members of the sink, so it is absolutely necessary to make it the front surface.

【0041】また、本実施例において、送風風量は乾燥
運転開始から所定時間は少ない風量で運転し、その後は
風量が多くなるように、風量を調整すれば、洗浄運転終
了後の洗浄槽11内の、約70℃〜80℃と温度が高
く、相対湿度も約100%ときわめて大きい加熱蒸気が
排気通路14内を流れる流速が遅くなり、少しずつ徐々
に熱交換されるので、熱交換の効率もよくなる。
Further, in this embodiment, if the air flow rate is adjusted so that the air flow rate is small for a predetermined time from the start of the drying operation, and thereafter the air volume is increased, the inside of the cleaning tank 11 after the cleaning operation is finished. However, the temperature of the heated steam is as high as about 70 ° C. to 80 ° C. and the relative humidity is about 100%, which is extremely large. Also gets better.

【0042】よって、高温の蒸気が排気口13から、一
度に、多量に洗浄槽11外に排出されるという危険性も
さらに低くなり、一層、安全性を向上することができ
る。また、排気口13の流速も一時的に遅くなるので、
そのときは、加熱蒸気の風圧も低くなり、さらに、安全
性を向上することができる。
Therefore, the risk that a large amount of high-temperature steam is discharged from the exhaust port 13 to the outside of the cleaning tank 11 at once is further reduced, and the safety can be further improved. Moreover, since the flow velocity of the exhaust port 13 is also temporarily reduced,
At that time, the wind pressure of the heated steam is also lowered, and the safety can be further improved.

【0043】(実施例3)図4に示すように、排気口1
3に空気を通し、かつ、蒸気を吸収する特性を有する吸
湿素材のフィルター15を設けている。他の構成は上記
実施例1と同じである。
(Embodiment 3) As shown in FIG. 4, the exhaust port 1
A filter 15 made of a hygroscopic material that allows air to pass through and absorbs vapor is provided in 3. The other structure is the same as that of the first embodiment.

【0044】上記構成において動作を説明する。なお、
食器洗い機の基本的な動作は上記実施例1と同じである
ので説明を省略する。
The operation of the above configuration will be described. In addition,
Since the basic operation of the dishwasher is the same as that of the above-mentioned first embodiment, the explanation is omitted.

【0045】排気口13の出口部のところで湿った加熱
空気の蒸気を吸収するので、上述のように排気通路14
を設けた効果に加え、より一層排気口13から出る加熱
空気の湿度を下げることができ、安全性を向上すること
ができる。
Since the vapor of the moist heated air is absorbed at the outlet of the exhaust port 13, as described above, the exhaust passage 14
In addition to the effect of providing the above, the humidity of the heated air discharged from the exhaust port 13 can be further lowered, and the safety can be improved.

【0046】本実施例では、細長い排気通路14から湿
った加熱空気が排気口13へと流入するので、通路断面
積が小さく一度に排気口13へ流入する蒸気の量も断面
積が大きい場合に比べ抑制され、少ない量の吸湿素材の
フィルター15でも蒸気の吸湿能力を確保できる。よっ
て、この吸湿素材のフィルター15を用いる場合の蒸気
を吸湿する速度の問題も改善することができる。
In this embodiment, since the moist heated air flows into the exhaust port 13 from the elongated exhaust passage 14, when the cross-sectional area of the passage is small and the amount of steam flowing into the exhaust port 13 at one time is large, the cross-sectional area is large. Compared with this, even a small amount of the filter 15 made of a hygroscopic material can secure the vapor hygroscopic ability. Therefore, the problem of the speed of absorbing vapor when using the filter 15 made of the hygroscopic material can be improved.

【0047】また、この吸湿素材のフィルター15は乾
燥中、徐々に洗浄槽11内の加熱空気の湿度が低くなる
ので、途中から加熱空気で乾燥され、除湿の能力が回復
することができる。
Further, since the humidity of the heated air in the cleaning tank 11 gradually decreases during the drying of the filter 15 made of the hygroscopic material, it can be dried by the heated air midway and the dehumidifying ability can be restored.

【0048】(実施例4)図5に示すように、送風手段
7は、第1の送風路7aを通して外気を洗浄槽11内に
供給するとともに、第1の送風路7aより分岐して第2
の送風路7bを設け、この第2の送風路7bを排気通路
14に連通させ、洗浄槽11内から排出された加熱空気
と送風手段7からの外気を混合して、排気口13から排
気するように構成している。他の構成は上記実施例1と
同じである。
(Embodiment 4) As shown in FIG. 5, the blowing means 7 supplies the outside air into the cleaning tank 11 through the first blowing passage 7a and branches from the first blowing passage 7a to the second blowing passage 7a.
Is provided, the second air passage 7b is communicated with the exhaust passage 14, and the heated air discharged from the cleaning tank 11 and the outside air from the air blowing unit 7 are mixed and exhausted from the exhaust port 13. Is configured as follows. The other structure is the same as that of the first embodiment.

【0049】上記構成において動作を説明する。なお、
食器洗い機の基本的な動作は上記実施例1と同じである
ので説明を省略する。
The operation of the above configuration will be described. In addition,
Since the basic operation of the dishwasher is the same as that of the above-mentioned first embodiment, the explanation is omitted.

【0050】洗浄槽11内から排出された加熱空気と送
風手段7からの外気を混合して、排気口13から排気す
るように構成しているので、排気口13直前の排気通路
14で、洗浄槽11から排出され湿った加熱蒸気と、第
2の送風路7bより乾いた常温の空気とが混合され、排
気口13までの通路の中で上手く混ざる。
Since the heated air discharged from the cleaning tank 11 and the outside air from the blowing means 7 are mixed and exhausted from the exhaust port 13, the cleaning is performed in the exhaust passage 14 immediately before the exhaust port 13. The moist heated steam discharged from the tank 11 and the room temperature air dried from the second air passage 7b are mixed and mixed well in the passage to the exhaust port 13.

【0051】よって、上述のように細長い排気通路14
を設けた効果に加え、より一層、排気口13から出る加
熱空気の温度、湿度を下げることができ、安全性を向上
することができる。
Therefore, as described above, the elongated exhaust passage 14
In addition to the effect of providing the above, the temperature and humidity of the heated air discharged from the exhaust port 13 can be further lowered, and the safety can be improved.

【0052】なお、本実施例では、排気口13の直前の
排気通路14で混合したが、排気口13で混合するに十
分な空間、時間が確保できれば、排気口13で混合して
もよい。
In this embodiment, the mixing is carried out in the exhaust passage 14 immediately before the exhaust port 13, but the mixing may be carried out at the exhaust port 13 if a sufficient space and time for mixing at the exhaust port 13 can be secured.

【0053】(実施例5)図6に示すように、冷却手段
16は、空気を通し、かつ、排気温度を下げる効果のあ
るもので、排気通路14の経路途中に設けている。ここ
で、冷却手段16として、ペルチェ素子16aに冷却フ
ィン16bと放熱フィン16cを設けて構成している。
ペルチェ素子を用いると、コンプレッサー方式のものを
用いるより、音が静かで、騒音の問題もない。他の構成
は上記実施例1と同じである。
(Embodiment 5) As shown in FIG. 6, the cooling means 16 has the effect of passing air and lowering the exhaust temperature, and is provided in the middle of the exhaust passage 14. Here, as the cooling means 16, a Peltier element 16a is provided with a cooling fin 16b and a radiation fin 16c.
When using a Peltier element, the sound is quieter than when using a compressor type, and there is no problem of noise. The other structure is the same as that of the first embodiment.

【0054】上記構成において動作を説明する。なお、
食器洗い機の基本的な動作は上記実施例1と同じである
ので説明を省略する。
The operation of the above configuration will be described. In addition,
Since the basic operation of the dishwasher is the same as that of the above-mentioned first embodiment, the explanation is omitted.

【0055】排気通路14の経路途中に、空気を通し、
かつ、排気温度を下げる冷却手段16を設けているの
で、湿った加熱蒸気が排気通路14内の冷却手段16を
通過するときに熱交換を行う、熱交換された加熱空気は
排気口13へ排出され、熱交換前の加熱空気が新たに冷
却手段16を通過するので、連続的に熱交換され、効率
がよい。しかも、吸熱側の能力が高く維持されるので、
高い効率が維持される。
Air is passed in the middle of the exhaust passage 14,
Moreover, since the cooling means 16 for lowering the exhaust gas temperature is provided, heat exchange is performed when the moist heated steam passes through the cooling means 16 in the exhaust passage 14, and the heat-exchanged heated air is discharged to the exhaust port 13. Since the heated air before heat exchange newly passes through the cooling means 16, heat is continuously exchanged and efficiency is improved. Moreover, since the capacity on the heat absorption side is maintained high,
High efficiency is maintained.

【0056】よって、上述のように排気通路14を設け
た効果に加え、より一層、排気口13から出る加熱空気
の温度、湿度を下げることができ、安全性を向上するこ
とができる。
Therefore, in addition to the effect of providing the exhaust passage 14 as described above, the temperature and humidity of the heated air discharged from the exhaust port 13 can be further lowered, and the safety can be improved.

【0057】ここで、ペルチェ素子を用いた冷却手段1
3の原理を簡単に説明しておく。ペルチェ素子16aに
直流電流を流すことにより、吸熱、放熱の現象が発生す
る。吸熱側を16bの冷却フィンに接し、放熱側を放熱
フィン16cと接することにより熱の移動が可能とな
り、冷却できることになる。
Here, cooling means 1 using a Peltier element
The principle of No. 3 will be briefly described. When a direct current is passed through the Peltier element 16a, heat absorption and heat radiation phenomena occur. By contacting the heat absorbing side with the cooling fins 16b and the heat radiating side with the heat radiating fins 16c, heat can be transferred and can be cooled.

【0058】(実施例6)図7に示すように、洗浄槽1
1は、内部に外気を供給する入口11aと、洗浄槽11
内から加熱空気を排出する排出口11bを、洗浄槽11
の対角に位置するように設け、かつ、排出口11bは、
洗浄槽11の上部に設けている。他の構成は上記実施例
1と同じである。
(Embodiment 6) As shown in FIG.
1 is an inlet 11a for supplying outside air to the inside, and a cleaning tank 11
The discharge port 11b for discharging the heated air from the inside is connected to the cleaning tank 11
Is provided so as to be located on the diagonal of, and the discharge port 11b is
It is provided above the cleaning tank 11. The other structure is the same as that of the first embodiment.

【0059】上記構成において動作を説明する。なお、
食器洗い機の基本的な動作は上記実施例1と同じである
ので説明を省略する。
The operation of the above configuration will be described. In addition,
Since the basic operation of the dishwasher is the same as that of the above-mentioned first embodiment, the explanation is omitted.

【0060】洗浄槽11内に外気を供給する入口11a
と、洗浄槽11内から加熱空気を排出する排出口11b
を対角に位置するように設けているので、洗浄槽11内
の加熱空気がショートパスすることなく、洗浄槽11内
を矢印で示すように流れる。また、加熱空気の排気の排
出口11bを上部に設けたことにより、暖かい空気は上
部に流れるという対流の効果も得られるので、より一
層、洗浄槽11内の加熱空気の排出の効率と熱交換の効
率がよくなる。
Inlet 11a for supplying outside air into the washing tank 11
And a discharge port 11b for discharging heated air from inside the cleaning tank 11.
Are provided so as to be diagonally located, the heated air in the cleaning tank 11 does not short-circuit and flows in the cleaning tank 11 as indicated by an arrow. In addition, since the exhaust port 11b for exhausting the heated air is provided in the upper portion, a convection effect that warm air flows in the upper portion can be obtained. Therefore, the efficiency of discharging the heated air in the cleaning tank 11 and the heat exchange can be further improved. Will be more efficient.

【0061】よって、より一層、排気口13から出る加
熱空気の温度、湿度を下げることができ、安全性を向上
することができる。
Therefore, the temperature and humidity of the heated air discharged from the exhaust port 13 can be further lowered, and the safety can be improved.

【0062】また、本実施例のように、洗浄槽11内に
外気を供給する入口11aの風の流れ方向と、洗浄槽1
1内に設けたヒータ6などの加熱手段の長手方向とが一
致するように設ければ、送風手段7により洗浄槽11内
に供給された常温の外気の加熱効率がよくなる。
Further, as in this embodiment, the flow direction of the wind at the inlet 11a for supplying the outside air into the cleaning tank 11 and the cleaning tank 1
If it is provided so that the longitudinal direction of the heating means such as the heater 6 provided in 1 coincides with the heating direction of the outside air at room temperature supplied into the cleaning tank 11 by the blowing means 7.

【0063】したがって、外気の温度が上昇するので、
飽和蒸気水分量が高くなり、洗浄槽11内の湿気を吸収
する効率がよくなり、洗浄槽11内の熱交換の効率がよ
くなる。よって、より一層、排気口13から出る加熱空
気の温度、湿度を下げることができ、安全性を向上する
ことができる。
Therefore, since the temperature of the outside air rises,
The saturated steam moisture content increases, the efficiency of absorbing moisture in the cleaning tank 11 improves, and the efficiency of heat exchange in the cleaning tank 11 improves. Therefore, the temperature and humidity of the heated air discharged from the exhaust port 13 can be further lowered, and the safety can be improved.

【0064】図8は、排気通路14を用いた本実施例
(点線)と従来例(実線)の洗浄槽11内の絶対湿度変
化を示したグラフであり、本実施例の流量を従来例の約
1/4の約25l/minに減らしたにも関わらず、同
じ様に絶対湿度が減少している。このことより、洗浄槽
11内の熱交換の効率もよくなっていることが解る。
FIG. 8 is a graph showing changes in absolute humidity in the cleaning tank 11 of the present embodiment (dotted line) using the exhaust passage 14 and the conventional example (solid line). Despite reducing it to about 25 l / min, which is about 1/4, the absolute humidity is also decreasing. From this, it is understood that the efficiency of heat exchange in the cleaning tank 11 is improved.

【0065】[0065]

【発明の効果】以上のように本発明の請求項1に記載の
発明によれば、食器類を収容する洗浄槽と、前記洗浄槽
内の温度を上昇させ食器類を乾燥させる加熱手段と、外
気を前記洗浄槽内に供給する送風手段と、前記洗浄槽内
の加熱空気を槽外へ排出する排気口と、前記洗浄槽内と
前記排気口とを連結する排気通路とを具備し、前記排気
通路は、細長い通路により前記洗浄槽と熱絶縁して構成
したから、蒸気を多量に含んだ加熱空気が排気通路を通
過する間に、排気通路壁と熱交換して加熱空気の温度が
下がる。しかも、加熱蒸気の温度が下がることにより、
飽和水分量が低くなるので、加熱蒸気の水分の一部が結
露して排気通路に残る。この結露水と加熱蒸気との間で
も新たに熱交換が生じて効果は一層高くなる。しかも、
排気通路は洗浄槽と熱絶縁し、細長い通路にしたことに
より、熱交換するために加熱空気と接する排気通路の壁
面の面積は、通路長×外周で表されるので非常に大きく
確保できる。よって、熱交換の能力が大きくなり、加熱
蒸気の温度も下がり、絶対湿度も下げ、排気口から出る
加熱空気の安全性を確保することができる。
As described above, according to the invention described in claim 1 of the present invention, the washing tank for storing the dishes, the heating means for raising the temperature in the washing tank to dry the dishes, An air outlet for supplying outside air into the cleaning tank, an exhaust port for discharging the heated air in the cleaning tank to the outside of the tank, and an exhaust passage connecting the inside of the cleaning tank with the exhaust port, Since the exhaust passage is configured to be thermally insulated from the cleaning tank by the elongated passage, the heated air containing a large amount of steam exchanges heat with the exhaust passage wall to lower the temperature of the heated air while passing through the exhaust passage. . Moreover, because the temperature of the heating steam drops,
Since the saturated water content becomes low, a part of the water content of the heated steam is condensed and remains in the exhaust passage. The heat is newly generated between the condensed water and the heated steam, and the effect is further enhanced. Moreover,
Since the exhaust passage is thermally insulated from the cleaning tank and formed into a long and narrow passage, the area of the wall surface of the exhaust passage in contact with the heated air for heat exchange is represented by passage length × outer circumference, so that a very large area can be secured. Therefore, the ability of heat exchange is increased, the temperature of the heated steam is lowered, the absolute humidity is also lowered, and the safety of the heated air discharged from the exhaust port can be secured.

【0066】また、請求項2に記載の発明によれば、排
気通路は、洗浄槽と分離して外壁との間に空間を有する
構成としたから、排気通路を洗浄槽と熱絶縁する耐熱シ
ートなどの特別な部材を新たに使用しなくとも空気絶縁
ができ、熱交換の効果を得ることができる。
According to the second aspect of the present invention, the exhaust passage is configured to have a space between the cleaning tank and the outer wall so that the exhaust passage is thermally insulated from the cleaning tank. Even if a special member such as is not newly used, air insulation can be performed and a heat exchange effect can be obtained.

【0067】また、請求項3に記載の発明によれば、排
気口を食器洗い乾燥機本体の前面に設け、加熱空気を排
出する排出口を洗浄槽の後面に設け、前記排気口と排出
口とを排気通路で連結したから、熱交換の排気通路の場
所が集中しないので、熱交換の効率が低下しないように
できる。
Further, according to the invention described in claim 3, the exhaust port is provided on the front surface of the main body of the dishwasher and the exhaust port for discharging the heated air is provided on the rear surface of the washing tank. Since the exhaust passages are connected to each other, the location of the exhaust passage for heat exchange is not concentrated, so that the efficiency of heat exchange can be prevented from decreasing.

【0068】また、請求項4に記載の発明によれば、送
風手段は、乾燥運転開始から所定時間は少ない風量で運
転し、その後は風量が多くなるように風量を調整するよ
う構成したから、加熱蒸気が少しずつ徐々に熱交換され
るので熱交換の効率をよくすることができ、よって、高
温の蒸気が排気口から一度に多量に洗浄槽外に排出され
るという危険性もさらに低くなり、一層、安全性を向上
することができる。
Further, according to the invention described in claim 4, the blower means is configured to operate with a small air volume for a predetermined time from the start of the drying operation, and thereafter to adjust the air volume so that the air volume increases. Since the heated steam is gradually heat-exchanged little by little, the efficiency of heat exchange can be improved, and the risk that a large amount of high-temperature steam will be discharged from the exhaust port to the outside of the cleaning tank at once is further reduced. The safety can be further improved.

【0069】また、請求項5に記載の発明によれば、排
気口に空気を通し、かつ、蒸気を吸収する特性を有する
吸湿素材のフィルターを設けたから、排気口の出口部の
ところで湿った加熱空気の蒸気を吸収するので、より一
層排気口から出る加熱空気の湿度を下げることができ、
安全性を向上することができる。
Further, according to the invention of claim 5, since a filter of a hygroscopic material having a characteristic of passing air into the exhaust port and absorbing vapor is provided in the exhaust port, heating at the outlet part of the exhaust port becomes wet. Since it absorbs the vapor of air, the humidity of the heated air coming out of the exhaust port can be further reduced,
The safety can be improved.

【0070】また、請求項6に記載の発明によれば、送
風手段に第2の送風路を設けて排気通路に連通させ、洗
浄槽内から排出された加熱空気と、送風手段からの外気
を混合して、排気口から排気するよう構成したから、排
気口の直前の排気通路のところで、洗浄槽から排出され
た湿った加熱蒸気と、第2の送風路より乾いた常温の空
気が混合され、排気口までの通路の中で混合されるの
で、より一層排気口から出る加熱空気の温度、湿度を下
げることができ、安全性を向上することができる。
According to the invention described in claim 6, the blower means is provided with the second blower passage so as to communicate with the exhaust passage, and the heated air discharged from the cleaning tank and the outside air from the blower means are provided. Since the air is mixed and exhausted from the exhaust port, the moist heated steam exhausted from the cleaning tank and the room temperature air dried from the second air passage are mixed in the exhaust passage immediately before the exhaust port. Since the air is mixed in the passage to the exhaust port, the temperature and humidity of the heated air discharged from the exhaust port can be further lowered, and the safety can be improved.

【0071】また、請求項7に記載の発明によれば、排
気通路の経路途中に、空気を通し、かつ、排気温度を下
げる冷却手段を設けたから、吸熱側の能力が高く維持さ
れるので、高い熱交換効率を維持することができる。
Further, according to the invention described in claim 7, since the cooling means for passing the air and lowering the exhaust temperature is provided in the middle of the path of the exhaust passage, the capacity on the heat absorption side is maintained high. High heat exchange efficiency can be maintained.

【0072】また、請求項8に記載の発明によれば、洗
浄槽内に外気を供給する入口と、洗浄槽内から加熱空気
を排出する排出口を、洗浄槽の対角に位置するように設
け、かつ、前記排出口は、洗浄槽の上部に設けたから、
洗浄槽内の加熱空気がショートパスすることなく洗浄槽
内を流れ、より一層洗浄槽内の加熱空気の排出効率と熱
交換の効率をよくすることができる。よって、より一層
排気口から出る加熱空気の温度、湿度を下げることがで
き、安全性を向上することができる。
Further, according to the invention as set forth in claim 8, the inlet for supplying the outside air into the cleaning tank and the outlet for discharging the heated air from the cleaning tank are located diagonally to the cleaning tank. Since the discharge port is provided at the top of the cleaning tank,
The heated air in the cleaning tank flows in the cleaning tank without short-circuiting, and the discharge efficiency of the heated air in the cleaning tank and the heat exchange efficiency can be further improved. Therefore, the temperature and humidity of the heated air discharged from the exhaust port can be further lowered, and the safety can be improved.

【0073】また、請求項9に記載の発明によれば、洗
浄槽内に外気を供給する入口の風の流れ方向と、洗浄槽
内に設けた加熱手段の長手方向とが一致するよう構成し
たから、送風手段により洗浄槽内に供給された常温の外
気の加熱効率がよくなり、飽和蒸気水分量が高くなり、
洗浄槽内の湿気を吸収する効率がよくなり、洗浄槽内の
熱交換の効率を向上することができる。よって、より一
層排気口から出る加熱空気の温度、湿度を下げることが
でき、安全性を向上することができる。
According to the invention described in claim 9, the flow direction of the wind at the inlet for supplying the outside air into the cleaning tank is aligned with the longitudinal direction of the heating means provided in the cleaning tank. From the above, the heating efficiency of the outside air at room temperature supplied to the cleaning tank by the blowing means is improved, and the saturated steam water content is increased,
The efficiency of absorbing moisture in the cleaning tank is improved, and the efficiency of heat exchange in the cleaning tank can be improved. Therefore, the temperature and humidity of the heated air discharged from the exhaust port can be further lowered, and the safety can be improved.

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

【図1】本発明の第1の実施例の食器洗い乾燥機の断面
FIG. 1 is a sectional view of a dishwasher / dryer according to a first embodiment of the present invention.

【図2】同食器洗い乾燥機と従来例の排気口の温度変化
を示すタイムチャート
FIG. 2 is a time chart showing changes in temperature of the same dishwasher and conventional exhaust port.

【図3】本発明の第2の実施例の食器洗い乾燥機の一部
切欠した斜視図
FIG. 3 is a partially cutaway perspective view of a dishwasher / dryer according to a second embodiment of the present invention.

【図4】本発明の第3の実施例の食器洗い乾燥機の要部
断面図
FIG. 4 is a sectional view of a main part of a dishwasher / dryer according to a third embodiment of the present invention.

【図5】本発明の第4の実施例の食器洗い乾燥機の一部
切欠した断面図
FIG. 5 is a partially cutaway sectional view of a dishwasher / dryer according to a fourth embodiment of the present invention.

【図6】本発明の第5の実施例の食器洗い乾燥機の要部
断面図
FIG. 6 is a cross-sectional view of essential parts of a dishwasher / dryer according to a fifth embodiment of the present invention.

【図7】本発明の第6の実施例の食器洗い乾燥機の洗浄
槽を上から見た図
FIG. 7 is a view of the washing tank of the dishwasher of the sixth embodiment of the present invention as seen from above.

【図8】同食器洗い乾燥機と従来例の排気口の絶対湿度
変化を示すタイムチャート
FIG. 8 is a time chart showing changes in absolute humidity of the dishwasher and the conventional exhaust port.

【図9】従来の食器洗い機の断面図FIG. 9 is a cross-sectional view of a conventional dishwasher

【符号の説明】[Explanation of symbols]

3 食器類 6 ヒータ(加熱手段) 7 送風手段 11 洗浄槽 13 排気口 14 排気通路 3 tableware 6 Heater (heating means) 7 Blower means 11 washing tank 13 Exhaust port 14 Exhaust passage

フロントページの続き (72)発明者 谷口 裕 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Fターム(参考) 3B082 BE00 Continued front page    (72) Inventor Yu Taniguchi             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F-term (reference) 3B082 BE00

Claims (9)

【特許請求の範囲】[Claims] 【請求項1】 食器類を収容する洗浄槽と、前記洗浄槽
内の温度を上昇させ食器類を乾燥させる加熱手段と、外
気を前記洗浄槽内に供給する送風手段と、前記洗浄槽内
の加熱空気を槽外へ排出する排気口と、前記洗浄槽内と
前記排気口とを連結する排気通路とを具備し、前記排気
通路は、細長い通路により前記洗浄槽と熱絶縁して構成
した食器洗い乾燥機。
1. A washing tank for holding dishes, a heating means for raising the temperature in the washing tank to dry the dishes, a blowing means for supplying outside air into the washing tank, and An exhaust port for discharging heated air to the outside of the bath, and an exhaust passage connecting the inside of the cleaning bath with the exhaust port, wherein the exhaust passage is thermally insulated from the cleaning bath by an elongated passage. Dryer.
【請求項2】 排気通路は、洗浄槽と分離して外壁との
間に空間を有する構成とした請求項1記載の食器洗い乾
燥機。
2. The dishwasher / dryer according to claim 1, wherein the exhaust passage is separated from the washing tank and has a space between the exhaust passage and the outer wall.
【請求項3】 排気口を食器洗い乾燥機本体の前面に設
け、加熱空気を排出する排出口を洗浄槽の後面に設け、
前記排気口と排出口とを排気通路で連結した請求項1ま
たは2記載の食器洗い乾燥機。
3. An exhaust port is provided on the front surface of the dishwasher main body, and an exhaust port for discharging heated air is provided on the rear surface of the washing tank.
The dishwasher / dryer according to claim 1, wherein the exhaust port and the exhaust port are connected by an exhaust passage.
【請求項4】 送風手段は、乾燥運転開始から所定時間
は少ない風量で運転し、その後は風量が多くなるように
風量を調整するよう構成した請求項1〜3のいずれか1
項に記載の食器洗い乾燥機。
4. The blower means is configured to operate with a small air volume for a predetermined time from the start of the drying operation, and thereafter to adjust the air volume to increase the air volume.
Dishwasher described in paragraph.
【請求項5】 排気口に空気を通し、かつ、蒸気を吸収
する特性を有する吸湿素材のフィルターを設けた請求項
1〜4のいずれか1項に記載の食器洗い乾燥機。
5. The dishwasher according to any one of claims 1 to 4, wherein a filter made of a hygroscopic material having a property of passing air through the exhaust port and absorbing vapor is provided.
【請求項6】 送風手段に第2の送風路を設けて排気通
路に連通させ、洗浄槽内から排出された加熱空気と、送
風手段からの外気を混合して、排気口から排気するよう
構成した請求項1〜5のいずれか1項に記載の食器洗い
乾燥機。
6. A structure in which a second blowing passage is provided in the blowing means and communicates with the exhaust passage, and the heated air discharged from the cleaning tank and the outside air from the blowing means are mixed and discharged from the exhaust port. The dishwasher / dryer according to any one of claims 1 to 5.
【請求項7】 排気通路の経路途中に、空気を通し、か
つ、排気温度を下げる冷却手段を設けた請求項1〜6の
いずれか1項に記載の食器洗い乾燥機。
7. The dishwasher / dryer according to any one of claims 1 to 6, wherein cooling means is provided in the middle of the path of the exhaust passage to lower the exhaust temperature by passing air.
【請求項8】 洗浄槽内に外気を供給する入口と、洗浄
槽内から加熱空気を排出する排出口を、洗浄槽の対角に
位置するように設け、かつ、前記排出口は、洗浄槽の上
部に設けた請求項1〜7のいずれか1項に記載の食器洗
い乾燥機。
8. An inlet for supplying outside air into the cleaning tank and an outlet for discharging heated air from the inside of the cleaning tank are provided so as to be positioned diagonally to each other, and the outlet is the cleaning tank. The dishwasher / dryer according to any one of claims 1 to 7, wherein the dishwasher / dryer is provided on an upper part of the table.
【請求項9】 洗浄槽内に外気を供給する入口の風の流
れ方向と、洗浄槽内に設けた加熱手段の長手方向とが一
致するよう構成した請求項1〜8のいずれか1項に記載
の食器洗い乾燥機。
9. The method according to claim 1, wherein the flow direction of the wind at the inlet for supplying the outside air into the cleaning tank is aligned with the longitudinal direction of the heating means provided in the cleaning tank. Dishwasher as described.
JP2002111694A 2002-04-15 2002-04-15 Dishwasher Expired - Fee Related JP4103433B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002111694A JP4103433B2 (en) 2002-04-15 2002-04-15 Dishwasher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002111694A JP4103433B2 (en) 2002-04-15 2002-04-15 Dishwasher

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2007108914A Division JP2007216045A (en) 2007-04-18 2007-04-18 Dish washer and drier

Publications (3)

Publication Number Publication Date
JP2003304995A true JP2003304995A (en) 2003-10-28
JP2003304995A5 JP2003304995A5 (en) 2007-06-07
JP4103433B2 JP4103433B2 (en) 2008-06-18

Family

ID=29394419

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP4103433B2 (en)

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JP2007054222A (en) * 2005-08-24 2007-03-08 Matsushita Electric Ind Co Ltd Dishwasher
JP2007117556A (en) * 2005-10-31 2007-05-17 Matsushita Electric Ind Co Ltd Dish washer
JP2007209437A (en) * 2006-02-08 2007-08-23 Matsushita Electric Ind Co Ltd Dish washer/dryer
JP2008055076A (en) * 2006-09-04 2008-03-13 Matsushita Electric Ind Co Ltd Dishwasher dryer
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JP2008264018A (en) * 2007-04-16 2008-11-06 Matsushita Electric Ind Co Ltd Dishwasher/dryer
JP2008279308A (en) * 2008-08-29 2008-11-20 Panasonic Corp Dishwasher/drier
JP2009090096A (en) * 2008-08-28 2009-04-30 Panasonic Corp Dishwasher/dryer
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007054222A (en) * 2005-08-24 2007-03-08 Matsushita Electric Ind Co Ltd Dishwasher
JP2007117556A (en) * 2005-10-31 2007-05-17 Matsushita Electric Ind Co Ltd Dish washer
JP2007209437A (en) * 2006-02-08 2007-08-23 Matsushita Electric Ind Co Ltd Dish washer/dryer
JP2008055076A (en) * 2006-09-04 2008-03-13 Matsushita Electric Ind Co Ltd Dishwasher dryer
KR100946856B1 (en) 2007-03-08 2010-03-09 파나소닉 주식회사 Dish washer
JP2008253544A (en) * 2007-04-05 2008-10-23 Matsushita Electric Ind Co Ltd Dish washing and drying machine
JP2008264018A (en) * 2007-04-16 2008-11-06 Matsushita Electric Ind Co Ltd Dishwasher/dryer
JP2008264017A (en) * 2007-04-16 2008-11-06 Matsushita Electric Ind Co Ltd Dishwasher/dryer
KR100966952B1 (en) 2007-10-11 2010-06-30 파나소닉 주식회사 Dish washing/drying machine
US8231737B2 (en) 2007-10-11 2012-07-31 Panasonic Corporation Dish washer/dryer
JP2009090096A (en) * 2008-08-28 2009-04-30 Panasonic Corp Dishwasher/dryer
JP2009090095A (en) * 2008-08-28 2009-04-30 Panasonic Corp Dishwasher/dryer
JP4530085B2 (en) * 2008-08-28 2010-08-25 パナソニック株式会社 Dishwasher
JP2008279308A (en) * 2008-08-29 2008-11-20 Panasonic Corp Dishwasher/drier

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