JP4238887B2 - Dishwasher - Google Patents

Dishwasher Download PDF

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Publication number
JP4238887B2
JP4238887B2 JP2006193816A JP2006193816A JP4238887B2 JP 4238887 B2 JP4238887 B2 JP 4238887B2 JP 2006193816 A JP2006193816 A JP 2006193816A JP 2006193816 A JP2006193816 A JP 2006193816A JP 4238887 B2 JP4238887 B2 JP 4238887B2
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Prior art keywords
air
cleaning tank
air passage
air volume
cleaning
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JP2008018129A5 (en
JP2008018129A (en
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茂 岩永
浩章 乾
徹 廣瀬
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2006193816A priority Critical patent/JP4238887B2/en
Priority to TW096123052A priority patent/TW200808250A/en
Priority to KR1020070069966A priority patent/KR100841858B1/en
Priority to CNU2007201526823U priority patent/CN201085610Y/en
Priority to CN200710136063XA priority patent/CN101103896B/en
Publication of JP2008018129A publication Critical patent/JP2008018129A/en
Publication of JP2008018129A5 publication Critical patent/JP2008018129A5/ja
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/48Drying arrangements
    • A47L15/488Connections of the tub with the ambient air, e.g. air intake or venting arrangements

Description

本発明は、キッチン等に設置され被洗浄物の収納及び自動洗浄、乾燥を行う食器洗い乾燥機に関するものである。   The present invention relates to a dishwasher which is installed in a kitchen or the like and performs storing, automatic cleaning, and drying of an object to be cleaned.

従来、この種の食器洗い乾燥機は、洗浄終了後に被洗浄物を乾燥させるため外気を洗浄槽内に送風して洗浄槽内の高温度で多湿な空気を排出する構成としている(例えば、特許文献1参照)。   Conventionally, this type of dishwasher has a configuration in which outside air is blown into a washing tub to dry the object to be washed after the washing is finished, and high temperature and humidity in the washing tub is discharged (for example, Patent Documents). 1).

図7は、特許文献1に記載された従来の食器洗い乾燥機を示すものである。図7に示すように、被洗浄物を収納する洗浄槽1と、洗浄水を噴射する洗浄ノズル2と洗浄水を加圧する洗浄ポンプ3を有する洗浄手段4と、洗浄水を加熱する加熱手段5と、洗浄槽1に外気を送風する送風機6と、洗浄槽1内部の空気を排気する排気口7と、排気口7に設けた外気を混合させる排気補助手段8から構成されている。
特開2000−166847号公報
FIG. 7 shows a conventional dishwasher described in Patent Document 1. In FIG. As shown in FIG. 7, a cleaning tank 1 for storing an object to be cleaned, a cleaning nozzle 4 having a cleaning nozzle 2 for spraying cleaning water and a cleaning pump 3 for pressurizing the cleaning water, and a heating means 5 for heating the cleaning water. And a blower 6 that blows outside air into the cleaning tank 1, an exhaust port 7 that exhausts air inside the cleaning tank 1, and an exhaust assisting means 8 that mixes the outside air provided in the exhaust port 7.
JP 2000-166847 A

しかしながら、前記従来の構成では排気口に流入する高温高湿の主流が持つ流体力で新たな外気を副流として排気に混合させるもので、高温多湿の洗浄槽1内の排気の温度を低減できるものの、排出される風の熱風感を回避できるまで十分冷却するには風量が足りないという課題を有していた。   However, in the conventional configuration, the fresh external air is mixed with the exhaust as a substream by the fluid force of the high-temperature and high-humidity mainstream flowing into the exhaust port, and the temperature of the exhaust in the high-temperature and high-humidity cleaning tank 1 can be reduced. However, there was a problem that there was not enough air volume to cool down enough to avoid the hot air feeling of the discharged wind.

本発明は、前記従来の課題を解決するもので、乾燥運転時において、洗浄槽内排気に十分な量の外気を混合し、排気の温度低減と排気内水分量の削減を促進して排気の快適性を高めた食器洗い乾燥機を提供することを目的とする。   The present invention solves the above-mentioned conventional problems, and mixes a sufficient amount of outside air into the cleaning tank exhaust during the drying operation to promote the reduction of the exhaust temperature and the reduction of the moisture content in the exhaust. The object is to provide a dishwasher with enhanced comfort.

前記従来の課題を解決するために、本発明の食器洗い乾燥機は、乾燥手段は、排気口の上流側に配置した外気と洗浄槽内気を混合する混合部と、外気と洗浄槽内気との混合割合を変化させる風量分配手段を備えたものである。   In order to solve the above-described conventional problems, the dishwasher of the present invention is characterized in that the drying means includes a mixing unit that mixes the outside air and the washing tank inside air arranged on the upstream side of the exhaust port, and the outside air and the washing tank inside air. An air volume distribution means for changing the mixing ratio is provided.

これによって、乾燥運転時において混合部を流れる外気と洗浄槽内気との流量割合を自在に分配設定できるので、温湿度を低減した排気による熱風感の確実な防止と乾燥性能の向上の両立ができる。   As a result, the flow rate ratio between the outside air flowing through the mixing section and the washing tank inside air can be freely distributed and set during the drying operation, so that both the reliable prevention of hot air feeling due to exhaust with reduced temperature and humidity and the improvement of drying performance can be achieved. it can.

本発明の食器洗い乾燥機は、乾燥運転時に排出される温湿度を低減した排気による熱風感の確実な防止と乾燥性能の向上の両立ができる。   The dishwasher / dryer of the present invention can achieve both the reliable prevention of hot air feeling and the improvement of drying performance due to exhaust with reduced temperature and humidity discharged during the drying operation.

第1の発明は、被洗浄物を収納する洗浄槽と、洗浄水を被洗浄物に噴出循環させる洗浄手段と、洗浄水を加熱する加熱手段と、前記洗浄槽内部の湿気を排出する排気口と送風機を有する乾燥手段と、前記乾燥手段を制御する制御手段を備え、前記乾燥手段は、前記排気口の上流側に配置した外気と洗浄槽内気を混合する混合部と、外気と洗浄槽内気との混合割合を変化させる風量分配手段を有し、乾燥運転時は、前記送風機を動作させて前記風量分配手段により外気を混合部へ導入する外気通路と、前記洗浄槽を経て前記混合部に連通する洗浄槽内気通路とに分流し、前記洗浄槽内への風量を変化させるようにした。これにより、乾燥運転時は高温高湿の洗浄槽内の空気(洗浄槽内気)に対し充分量の外気を冷却用として混合部で混合し、排気の冷却と水分削減による排気の熱風感の防止と乾燥性能の向上との両立ができる。また、送風機の風量を変化させて外気と洗浄槽内気との混合割合を変化させるようにしたことにより、洗浄槽内気と外気との風量割合制御幅を拡大して排気温度の制御性を向上でき、さらに洗浄槽内気風量の増大により乾燥時間の短縮あるい
は乾燥性能を向上できる。
According to a first aspect of the present invention, there is provided a cleaning tank for storing an object to be cleaned, a cleaning means for spraying and circulating cleaning water to the object to be cleaned, a heating means for heating the cleaning water, and an exhaust port for discharging moisture inside the cleaning tank. And a drying means having a blower, and a control means for controlling the drying means, wherein the drying means is a mixing section for mixing the outside air and the washing tank inside air arranged on the upstream side of the exhaust port, and the outside air and the washing tank. It has an air volume distribution means for changing the mixing ratio with the inside air, and during the drying operation, the air blower is operated to introduce an outside air into the mixing section by the air volume distribution means, and the mixing is performed through the washing tank. The air was diverted to the air passage in the washing tank communicating with the section, and the air volume into the washing tank was changed. As a result, during the drying operation , a sufficient amount of outside air is mixed in the mixing section for cooling with the air in the high-temperature and high-humidity cleaning tank (air in the cleaning tank), and the hot air feeling of the exhaust is reduced by cooling the exhaust and reducing the moisture. Both prevention and improvement of drying performance can be achieved. In addition, by changing the air flow rate of the blower to change the mixing ratio between the outside air and the cleaning tank air, the control range of the exhaust air temperature can be increased by expanding the control range of the air volume ratio between the cleaning tank air and the outside air. In addition, the drying time can be shortened by increasing the air volume in the washing tank.
Can improve drying performance.

第2の発明は、特に、第1の発明の送風機は、風量分配手段の上流側に配置したことにより、一つの送風機で乾燥および排気冷却の共用化がなされ、小型・低コスト化ができ、また共用化により省電力化できる。   In the second invention, in particular, the blower of the first invention is arranged on the upstream side of the air volume distribution means, so that drying and exhaust cooling can be shared by one blower, and the size and cost can be reduced. In addition, power can be saved by sharing.

第3の発明は、特に、第1または第2のいずれか1つの発明の風量分配手段は、外気を混合部へ導入する外気通路と、送風機から洗浄槽を経て混合部に連通する洗浄槽内気通路と、前記外気通路と前記洗浄槽内気通路の開口面積を変化させる弁体部を備えたことにより、弁体部の開口位置に応じて通路抵抗が定まるとともに弁体部の開口位置の再現性を確保できるので、分配比率の制御性および安定性を向上できる。In the third aspect of the invention, in particular, the air volume distribution means of the first or second aspect of the invention includes an outside air passage for introducing outside air to the mixing unit, and a cleaning tank communicating with the mixing unit from the blower through the washing tank. By providing the air passage, and the valve body portion that changes the opening area of the outside air passage and the cleaning tank air passage, the passage resistance is determined according to the opening position of the valve body portion, and the opening position of the valve body portion Since reproducibility can be ensured, the controllability and stability of the distribution ratio can be improved.

第4の発明は、特に、第3の発明の風量分配手段は、送風機の運転開始時には外気通路側への風量が洗浄槽内気通路側への風量よりも多くなるようにしたことにより、多量の外気に少量の高温高湿の洗浄槽内気を混合させて排気することで乾燥開始時の高温排気を確実に防止でき、快適性を向上できる。  In the fourth aspect of the invention, in particular, the air volume distribution means of the third aspect of the present invention has a large volume because the air volume to the outside air passage side is larger than the air volume to the cleaning tank inside air passage side at the start of operation of the blower. By mixing a small amount of high-temperature and high-humidity cleaning tank air with the outside air, the high-temperature exhaust at the start of drying can be reliably prevented and the comfort can be improved.

第5の発明は、特に、第3の発明の風量分配手段は、洗浄運転中あるいはすすぎ運転中は洗浄槽内気通路閉じるようにしたことにより、自然対流により洗浄槽内気が排気口から流出するのを低減して、湿気の流出低減による室内空間の快適性を向上と放熱の低減による省エネルギー化を向上できる。  In the fifth aspect of the invention, in particular, the air volume distribution means of the third aspect of the invention is configured such that the air passage in the cleaning tank is closed during the cleaning operation or the rinsing operation, so that the air in the cleaning tank flows out from the exhaust port by natural convection. Therefore, the comfort of the indoor space can be improved by reducing the outflow of moisture and the energy saving can be improved by reducing the heat radiation.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(実施の形態1)
図1は本発明の第1の実施の形態の食器洗い乾燥機の構成を示す断面図である。図1において、食器などの被洗浄物を収納する洗浄槽1の下方には、洗浄水を被洗浄物に噴出して循環させる洗浄ノズル2と洗浄水を加圧する洗浄ポンプ3を有する洗浄手段4と、洗浄水を加熱し昇温させる加熱手段5を配置している。また、洗浄槽1内の湿気を排出して洗浄槽1内を乾燥させるため外気を送風する送風機6、洗浄槽1内の湿気を排出する排気口7を乾燥手段9は有し、洗浄槽1にはその下方に外気を流入させる流入口10を設け、その上方には洗浄槽1内の空気(洗浄槽内気)を排出させる流出口11を設けている。
(Embodiment 1)
FIG. 1 is a cross-sectional view showing the configuration of the dishwasher according to the first embodiment of the present invention. In FIG. 1, a cleaning means 4 having a cleaning nozzle 2 for jetting and circulating cleaning water to the object to be cleaned and a cleaning pump 3 for pressurizing the cleaning water below a cleaning tank 1 for storing the object to be cleaned such as tableware. And the heating means 5 which heats washing water and heats up is arrange | positioned. Further, the drying means 9 has a blower 6 for blowing outside air to discharge moisture in the cleaning tank 1 and drying the inside of the cleaning tank 1, and an exhaust port 7 for discharging moisture in the cleaning tank 1. Is provided with an inflow port 10 through which outside air flows in and an outflow port 11 through which air in the cleaning tank 1 (cleaning tank internal air) is discharged.

送風機6の下流側には風量を分配する風量分配手段12を接続し、この風量分配手段12の下流側には、外気を混合部13に導入する外気通路14と、洗浄槽1の流入口10、洗浄槽1、流出口11を経て混合部13に連通する洗浄槽内気通路15を配置している。また混合部13は、その出口側を排気口7に連通させ、混合部13の入口側を外気通路14および洗浄槽内気通路15である流出口11に連通させている。   An air volume distribution means 12 for distributing the air volume is connected to the downstream side of the blower 6, and an external air passage 14 for introducing outside air into the mixing unit 13 and an inlet 10 of the cleaning tank 1 are connected to the downstream side of the air volume distribution means 12. A cleaning tank internal air passage 15 communicating with the mixing unit 13 through the cleaning tank 1 and the outlet 11 is disposed. In addition, the mixing unit 13 communicates the outlet side with the exhaust port 7 and communicates the inlet side of the mixing unit 13 with the outflow port 11 which is the outside air passage 14 and the cleaning tank inside air passage 15.

このように、風量分配手段12の上流側に送風機6を配置し、排気口7の上流側には外気と洗浄槽内気を混合する混合部13を配置している。風量分配手段12は、外気通路14と洗浄槽内気通路15への流動抵抗を変化させて風量を分配するもので、混合部13における外気と洗浄槽内気との混合時の流量割合を変化させる。   In this way, the blower 6 is arranged upstream of the air volume distribution means 12, and the mixing unit 13 that mixes the outside air and the cleaning tank inside air is arranged upstream of the exhaust port 7. The air volume distribution means 12 distributes the air volume by changing the flow resistance to the outside air passage 14 and the washing tank inside air passage 15, and changes the flow rate ratio when the outside air and the washing tank inside air are mixed in the mixing unit 13. Let

制御手段16は乾燥手段9を制御するもので、送風機6の風量を制御する風量制御部17と、混合部13の下流側に設けた温度検知部18の検知温度を基に制御量を設定する温度制御部19を有している。   The control means 16 controls the drying means 9, and sets the control amount based on the air temperature control section 17 that controls the air volume of the blower 6 and the temperature detected by the temperature detection section 18 provided on the downstream side of the mixing section 13. A temperature control unit 19 is provided.

また、風量分配手段12は、外気通路14と洗浄槽内気通路15への開口面積を変化さ
せる弁体部20を設けて風量を分配するもので、制御手段16には温度制御部19の信号に応じて弁体部20の開度を制御する開度制御部21を備えている。
The air volume distributing means 12 distributes the air volume by providing a valve body section 20 that changes the opening area to the outside air passage 14 and the cleaning tank internal air path 15. The opening degree control part 21 which controls the opening degree of the valve body part 20 according to is provided.

このように、乾燥手段9は排気口7および送風機6だけでなく、排気口7の上流側に配置した外気と洗浄槽内気を混合する混合部13と、外気と洗浄槽内気との混合割合を変化させる風量分配手段12を備えている。   Thus, the drying means 9 is not only the exhaust port 7 and the blower 6 but also the mixing unit 13 for mixing the outside air and the cleaning tank inside air arranged on the upstream side of the exhaust port 7 and the mixing of the outside air and the cleaning tank inside air. Air volume distribution means 12 for changing the ratio is provided.

洗浄槽1は、洗浄水を供給する給水弁22を備えた給水管23と、洗浄水を排水する排水弁24を備えた排水管25を設け、筐体26から引き出すことができるスライド体27に収納されている。このスライド体27には外部と連通する通気口28を設けている。   The cleaning tank 1 is provided with a water supply pipe 23 having a water supply valve 22 for supplying cleaning water and a drain pipe 25 having a drain valve 24 for draining the cleaning water, and a slide body 27 that can be drawn out from the housing 26. It is stored. The slide body 27 is provided with a vent 28 communicating with the outside.

図2は、図1に示す風量分配手段12の弁体部20を示したもので、円筒面を持ち回動可能な弁体部20により外気通路14側と洗浄槽内気通路15側への開度を変化させるもので、ここでは洗浄槽内気通路15側は全閉止されるとともに外気通路14側は全開状態として示している。   FIG. 2 shows the valve body portion 20 of the air volume distribution means 12 shown in FIG. 1. The valve body portion 20 has a cylindrical surface and can be turned to the outside air passage 14 side and the cleaning tank inside air passage 15 side. Here, the opening degree is changed. Here, the cleaning tank internal air passage 15 side is fully closed and the external air passage 14 side is shown in a fully open state.

以上のように構成された食器洗い乾燥機について、以下その動作、作用を説明する。まず、筐体26からスライド体27を引き出して被洗浄物である食器を洗浄槽1内に収納し、スライド体27を元に戻して洗浄を開始する。洗浄運転開始とともに給水弁22を開成して給水管23から洗浄槽1に給水し、所定量の給水が行われると給水弁22を閉成して給水停止し、加熱手段5および洗浄手段4である洗浄ポンプ3の運転により、洗浄ノズル2から温水を噴出させて被洗浄物である食器に噴きつけ循環させる。   About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. First, the slide body 27 is pulled out from the housing 26 to store the tableware, which is the object to be cleaned, in the cleaning tank 1, and the slide body 27 is returned to its original state to start cleaning. When the cleaning operation is started, the water supply valve 22 is opened and water is supplied from the water supply pipe 23 to the cleaning tank 1. When a predetermined amount of water is supplied, the water supply valve 22 is closed and the water supply is stopped. By the operation of a certain washing pump 3, hot water is jetted from the washing nozzle 2 and sprayed and circulated on the tableware that is the object to be washed.

洗浄水が噴出する反力で洗浄ノズル2が回転することで被洗浄物に洗浄水を行き渡らせ、洗浄性を高めている。ここでは加熱手段5を運転して温水で洗浄する場合を示したが、被洗浄物の汚れが弱い場合は加熱手段5を運転させずに給水温度で洗浄すれば良く、また、被洗浄物の汚れが強い場合は洗剤を入れて洗浄する。洗浄運転が終了すると排水弁24を開成して洗浄水を排水管25から筐体26の外部に排水し、排水し終わると排水弁24を閉成する。   The cleaning nozzle 2 is rotated by the reaction force of the cleaning water jetting, so that the cleaning water is spread over the object to be cleaned, thereby improving the cleaning performance. Although the case where the heating means 5 is operated and washed with warm water is shown here, if the object to be cleaned is weakly soiled, the heating means 5 may be cleaned without operating the water supply temperature. If the dirt is strong, clean it with detergent. When the cleaning operation is completed, the drain valve 24 is opened, and the cleaning water is drained from the drain pipe 25 to the outside of the housing 26. When draining is completed, the drain valve 24 is closed.

次に行うすすぎ運転では洗剤を投入せずに、洗浄運転と同様に給水し、加熱手段5および洗浄ポンプ3の運転により洗浄ノズル2から温水を噴出させて被洗浄物である食器に噴きつけ循環させる。このすすぎ運転の後に行う被洗浄物を乾かす乾燥運転のため、すすぎ運転では被洗浄物を暖めておくのが好ましく、70℃〜80℃程度の高温水ですすぎ運転を実施すれば殺菌処理ができる。すすぎ運転終了後は洗浄運転終了時と同様に洗浄槽1内のすすぎ水を排水する。   In the next rinsing operation, water is supplied in the same manner as in the cleaning operation without adding detergent, and hot water is ejected from the cleaning nozzle 2 by the operation of the heating means 5 and the cleaning pump 3 and sprayed on the tableware to be cleaned. Let Since the object to be cleaned is dried after the rinsing operation, the object to be cleaned is preferably warmed in the rinsing operation, and sterilization can be performed by rinsing with high-temperature water of about 70 ° C to 80 ° C. . After the rinsing operation is completed, the rinsing water in the cleaning tank 1 is drained in the same manner as at the end of the cleaning operation.

次に行う乾燥運転では、すすぎ運転により高温高湿になっている洗浄槽1内の空気を排出して被洗浄物を乾かすため、送風機6を運転するとともに風量分配手段12で外気通路14と洗浄槽内気通路15に分流させ、外気を混合部13および洗浄槽1に送る。特に、高温水ですすぎ運転を行った場合は排気口7から洗浄槽1内の高温高湿の空気を直接排出しないように、送風機6の運転開始時には制御手段16の開度制御部21により外気通路14側への風量が洗浄槽内気通路15側への風量よりも多くなるように開口面積を制御する。   In the next drying operation, the blower 6 is operated and the outside air passage 14 is cleaned by the air volume distribution means 12 in order to discharge the air in the cleaning tank 1 that has become hot and humid by the rinsing operation and dry the object to be cleaned. The air is diverted to the tank internal air passage 15 and the outside air is sent to the mixing unit 13 and the cleaning tank 1. In particular, when the operation of rinsing with high-temperature water is performed, the outside air is controlled by the opening degree control unit 21 of the control means 16 so that the high-temperature and high-humidity air in the cleaning tank 1 is not directly discharged from the exhaust port 7 at the start of the operation of the blower 6. The opening area is controlled so that the air volume toward the passage 14 is larger than the air volume toward the cleaning tank internal air passage 15.

これにより、多量の外気に少量の高温高湿の洗浄槽内気を混合させた排気がなされるので、外気による洗浄槽内気の冷却性を高めて乾燥運転開始時に高温の排気が排出されるのを防止でき、また外気による洗浄槽内気の冷却時に洗浄槽内気の水分を凝縮させて排水することで排気中の水分を削減できるので、設置した室内などの空間の湿度アップを少なくして快適性を向上できる。   As a result, exhaust gas is produced by mixing a small amount of high-temperature and high-humidity cleaning tank air with a large amount of outside air, so that the cooling performance of the cleaning tank air by the outside air is improved and high-temperature exhaust gas is discharged at the start of the drying operation. In addition, it is possible to reduce the moisture in the exhaust by condensing and draining the moisture in the cleaning tank air when the cleaning tank air is cooled by outside air. Comfort can be improved.

また、図2のように、弁体部20は送風機6の運転開始時には洗浄槽内気通路15側を全閉止状態として閉じるようにするとともに、外気通路14側を全開状態として徐々に洗浄槽内気通路15側を開けて行くことにより、多量の外気に少量の洗浄槽内気を混合させるように制御ができるので、排気口7から高温高湿の排気が排出されるのをいっそう確実に防止できる。さらに、洗浄運転あるいはすすぎ運転において洗浄槽内気通路15側は全閉止状態として閉じるようにすることで、自然対流により洗浄槽内気が排気口7から流出するのを低減して、湿気の流出低減による室内空間の快適性を向上と放熱の低減による省エネルギー化を向上できる。   In addition, as shown in FIG. 2, the valve body 20 closes the cleaning tank internal air passage 15 side in a fully closed state at the start of operation of the blower 6, and gradually closes the outside air passage 14 side in a fully open state to gradually move into the cleaning tank. By opening the air passage 15 side, it is possible to control a large amount of outside air to be mixed with a small amount of air inside the washing tank, so that high-temperature and high-humidity exhaust is more reliably prevented from being discharged from the exhaust port 7. it can. Furthermore, in the cleaning operation or the rinsing operation, the cleaning tank air passage 15 side is closed in a fully closed state, thereby reducing the outflow of the cleaning tank air from the exhaust port 7 due to natural convection and the outflow of moisture. It is possible to improve indoor space comfort by reducing energy savings by reducing heat dissipation.

さらに乾燥運転の進行に伴って、洗浄槽1内への外気の流入により洗浄槽内気の湿度が低下し、洗浄槽内気のエンタルピが下がるため排気口7から流出する排気の温度を所定値以下に冷却するに要する外気風量は少なくて済むようになる。従って、乾燥状態の進行に伴い混合部13への外気風量は少なくすることができ、その分を洗浄槽内気通路15側に振向けて洗浄槽1内への風量を増加させることで被洗浄物の乾燥性能を高めることができる。そこで、温度検知部18の検知温度を基に温度制御部19の信号により開度制御部21で風量分配手段12の弁体部20をステッピングモータ(図示せず)等で駆動して開度を変化させ、洗浄槽内気通路15側への風量割合を増加させて乾燥促進がなされる。   Further, as the drying operation proceeds, the humidity of the cleaning tank air decreases due to the inflow of the outside air into the cleaning tank 1, and the enthalpy of the cleaning tank air decreases, so that the temperature of the exhaust gas flowing out from the exhaust port 7 is a predetermined value. The amount of outside air required for cooling below can be reduced. Accordingly, the amount of the outside air flow to the mixing unit 13 can be reduced as the drying state progresses, and the amount of the air flowing into the washing tank 1 is increased by diverting the amount to the washing tank air passage 15 side. The drying performance of an object can be improved. Therefore, based on the temperature detected by the temperature detector 18, the opening control unit 21 drives the valve body 20 of the air volume distribution means 12 with a stepping motor (not shown) or the like in accordance with a signal from the temperature controller 19. The drying rate is increased by changing the air flow rate to the cleaning tank air passage 15 side.

このため、混合部13での洗浄槽内気への外気混合および風量分配変化による排気温度の安定化と冷却促進で排気温度の熱風感の確実な防止と、洗浄槽内空気の冷却時に発生する結露により洗浄槽内気中にあった水分の削減による排気の湿度低減の促進ができる。さらに、風量分配を可変とすることで高温排気の防止と乾燥性能の確保の両立ができる。   For this reason, the mixing unit 13 generates the hot air feeling of the exhaust temperature by stabilizing the exhaust temperature and promoting the cooling by mixing the outside air into the cleaning tank inside air and changing the air volume distribution, and is generated when the air in the cleaning tank is cooled. The humidity reduction of the exhaust can be promoted by reducing the moisture in the cleaning tank due to condensation. Furthermore, by making the air volume distribution variable, it is possible to both prevent high-temperature exhaust and ensure the drying performance.

また、回動する弁体部20が停止している開口位置により各通路への通路抵抗が一義的に定まるとともに弁体部の開口位置の再現性を確保できるので、分配比率の制御性および安定性を向上できる。   Further, since the passage resistance to each passage is uniquely determined by the opening position where the rotating valve body portion 20 is stopped, and the reproducibility of the opening position of the valve body portion can be ensured, the controllability and stability of the distribution ratio can be ensured. Can be improved.

ここまでは、乾燥運転時に加熱手段5を運転せずにすすぎ運転時の被洗浄物が持つ余熱を利用して乾燥させる場合を説明したが、乾燥運転時に加熱手段5を運転することで、洗浄槽1内に流入口10から流入した外気を加熱昇温させることにより乾燥を促進できるのは言うまでも無く、加熱手段5近傍の風速を高く保つほど加熱手段5の出力を大きくして乾燥性能を高めることが可能となる。   Up to this point, the case where drying is performed by using the residual heat of the object to be cleaned during the rinsing operation without operating the heating unit 5 during the drying operation has been described. However, the cleaning is performed by operating the heating unit 5 during the drying operation. It goes without saying that drying can be promoted by heating and raising the temperature of the outside air flowing into the tank 1 from the inlet 10. The drying performance is increased by increasing the output of the heating means 5 as the wind speed in the vicinity of the heating means 5 is kept high. Can be increased.

特に、乾燥運転時に送風機6の風量を風量制御部17で変化させることで、風量分配手段12の分配状態に関わらず洗浄槽内気通路15側への風量は所定値以上を確保し、流入口10での風速を高めて加熱手段5での熱伝達を促進できる。このため、洗浄槽内気と外気との風量割合制御幅を拡大して排気温度の制御性を向上でき、さらに洗浄槽内気風量の増大により乾燥時間の短縮あるいは乾燥性能を向上できる。   In particular, by changing the air volume of the blower 6 by the air volume control unit 17 during the drying operation, the air volume to the cleaning tank internal air passage 15 side is ensured to be a predetermined value or more regardless of the distribution state of the air volume distribution unit 12. The wind speed at 10 can be increased and heat transfer in the heating means 5 can be promoted. Therefore, the control range of the exhaust temperature can be improved by expanding the air volume ratio control range between the cleaning tank internal air and the outside air, and further, the drying time can be shortened or the drying performance can be improved by increasing the cleaning tank internal air flow.

また、制御手段16の風量制御部17で送風機6の風量を制御する場合、あるいは、制御手段16の開度制御部21で風量分配手段12の弁体部20の開度を制御する場合のいずれの場合でも、一つの送風機6の風を分配して排気冷却および乾燥がなされるので、小型・低コスト化ができ、また共用化により省電力化がなされる。   Further, either when the air volume control unit 17 of the control means 16 controls the air volume of the blower 6 or when the opening degree control part 21 of the control means 16 controls the opening degree of the valve body part 20 of the air volume distribution means 12. Even in this case, since the air from one blower 6 is distributed to cool and dry the exhaust, it is possible to reduce the size and cost, and to save power by sharing.

図3は、風量分配手段12の弁体部20を回動させて開度を変化させた場合を示したもので、洗浄槽内気通路15側の開度を大きくし外気通路14側の開度を小さくして、図中矢印で示すように、洗浄槽内気通路15側の流量は外気通路14側の流量よりも多くしている。このため洗浄槽1内への風量が増加し、被洗浄物の乾燥が促進できて乾燥性能を向上できる。また、このように弁体部20の移動により片側の開度が増加した分、他方の開
度が低下する構成とすることで送風機6への通風抵抗をほぼ一定に保つことで、送風機6の使用動作点を安定化し、風量変化を押えることで排気温度の制御性を高めることができる。
FIG. 3 shows a case where the opening degree is changed by rotating the valve body part 20 of the air volume distribution means 12, and the opening degree on the cleaning tank inner air passage 15 side is increased to open the outer air passage 14 side. The flow rate on the cleaning tank inside air passage 15 side is made larger than the flow rate on the outside air passage 14 side, as shown by arrows in the figure. For this reason, the air volume to the washing tank 1 increases, drying of a to-be-cleaned object can be accelerated | stimulated, and drying performance can be improved. In addition, since the opening of one side is increased by the movement of the valve body portion 20 in this way, the opening of the other side is decreased to keep the ventilation resistance to the blower 6 substantially constant, so that The controllability of the exhaust temperature can be improved by stabilizing the operating point of use and suppressing the change in air volume.

なお、温度検知部18の検知温度を基に制御手段16の風量制御部17で送風機6の風量を制御する場合および風量分配手段12の風量分配を変化させる場合を示したが、乾燥運転経過時間により風量分配を変化させることは可能であり、温度検知部18を省いて低コスト化できるのは言うまでも無い。   In addition, although the case where the air volume control unit 17 of the control means 16 controls the air volume of the blower 6 and the case where the air volume distribution of the air volume distribution means 12 is changed based on the temperature detected by the temperature detection unit 18 is shown, the elapsed time of the drying operation It is possible to change the air volume distribution by the above, and it goes without saying that the temperature detector 18 can be omitted and the cost can be reduced.

以上のように、本実施の形態においては、乾燥手段は、排気口の上流側に配置した外気と洗浄槽内気を混合する混合部と、外気と洗浄槽内気との混合割合を変化させる風量分配手段を備えたことにより、乾燥時は高温高湿の洗浄槽内の空気(洗浄槽内気)に対し充分量の外気を冷却用として混合部で混合し、排気の冷却と水分削減による排気の熱風感の防止と乾燥性能の向上との両立ができる。   As described above, in the present embodiment, the drying means changes the mixing ratio of the outside air and the cleaning tank inside air, which is arranged on the upstream side of the exhaust port, and the mixing ratio of the outside air and the cleaning tank inside air. By providing air volume distribution means, a sufficient amount of outside air is mixed in the mixing section for cooling to the air in the high-temperature, high-humidity cleaning tank (cleaning tank internal air) during drying, and cooling of the exhaust and moisture reduction Both prevention of hot air feeling of exhaust and improvement of drying performance can be achieved.

また、送風機を風量分配手段の上流側に配置したことにより、一つの送風機で乾燥および排気冷却の共用化がなされ、小型・低コスト化ができ、また共用化により省電力化できる。   Further, since the blower is arranged on the upstream side of the air volume distribution means, drying and exhaust cooling can be shared by a single blower, and the size and cost can be reduced, and power saving can be achieved by sharing.

また、制御手段は、送風機の風量を変化させて外気と洗浄槽内気との混合割合を変化させるようにしたことにより、洗浄槽内気と外気との風量割合制御幅を拡大して排気温度の制御性を向上でき、さらに洗浄槽内気風量の増大により乾燥時間の短縮あるいは乾燥性能を向上できる。   In addition, the control means is configured to change the mixing ratio between the outside air and the cleaning tank inside air by changing the air volume of the blower, thereby expanding the control range of the air volume ratio between the cleaning tank inside air and the outside air and increasing the exhaust temperature. Controllability can be improved, and further, the drying time can be shortened or the drying performance can be improved by increasing the amount of air in the washing tank.

また、風量分配手段は、外気を混合部へ導入する外気通路と、送風機から洗浄槽を経て混合部に連通する洗浄槽内気通路と、前記外気通路と前記洗浄槽内気通路の開口面積を変化させる弁体部を備えたことにより、弁体部の開口位置に応じて通路抵抗が定まるとともに弁体部の開口位置の再現性を確保できるので、分配比率の制御性および安定性を向上できる。   The air volume distribution means includes an outside air passage for introducing outside air into the mixing section, a washing tank inside air passage communicating from the blower through the washing tank to the mixing section, and an opening area of the outside air passage and the washing tank inside air passage. By providing the valve body portion to be changed, the passage resistance is determined according to the opening position of the valve body portion and the reproducibility of the opening position of the valve body portion can be ensured, so that the controllability and stability of the distribution ratio can be improved. .

また、風量分配手段は、送風機の運転開始時には外気通路側への風量を洗浄槽内気通路側への風量よりも多くなるようにしたことにより、多量の外気に少量の高温高湿の洗浄槽内気を混合させて排気することで乾燥開始時の高温排気を確実に防止でき、快適性を向上できる。   In addition, the air volume distribution means is configured so that the air volume to the outside air passage side is larger than the air volume to the inside air passage side at the start of the blower operation. By mixing and exhausting the inside air, high-temperature exhaust at the start of drying can be reliably prevented, and comfort can be improved.

また、風量分配手段は、洗浄運転中あるいはすすぎ運転中は洗浄槽内気通路を閉じるようにしたことにより、自然対流により洗浄槽内気が排気口から流出するのを低減して、湿気の流出低減による室内空間の快適性を向上と放熱の低減による省エネルギー化を向上できる。   In addition, the air volume distribution means closes the air passage in the washing tank during the washing operation or the rinsing operation, thereby reducing the outflow of the washing tank air from the exhaust port due to natural convection and the outflow of moisture. It is possible to improve indoor space comfort by reducing energy savings by reducing heat dissipation.

(実施の形態2)
図4は、本発明の第2の実施の形態の風量分配手段の構成図である。図4において、図1〜図3の実施の形態と同一部材、同一機能は同一符号を付し詳細な説明は省略し、異なるところを中心に説明する。
(Embodiment 2)
FIG. 4 is a block diagram of the air volume distribution means of the second embodiment of the present invention. 4, the same members and functions as those of the embodiment of FIGS. 1 to 3 are denoted by the same reference numerals, detailed description thereof is omitted, and different points will be mainly described.

風量分配手段12は、流動する流体(図中矢印で示す)の圧力、即ち送風機6の風圧で開度が変化するダンパー29としたもので、外気通路14と洗浄槽内気通路15の各通路のうち少なくとも洗浄槽内気通路15に設けて洗浄槽内気通路15側の通路抵抗が外気通路14側よりも大きくなるようにし、外気通路14側への風量が洗浄槽内気通路15側より多くなるようにしている。   The air volume distribution means 12 is a damper 29 whose opening degree changes depending on the pressure of the flowing fluid (indicated by an arrow in the figure), that is, the wind pressure of the blower 6, and each passage of the outside air passage 14 and the cleaning tank air passage 15 is provided. Is provided in at least the cleaning tank internal air passage 15 so that the passage resistance on the cleaning tank internal air passage 15 side is larger than that on the external air passage 14 side, and the air volume to the external air passage 14 side is larger than that on the cleaning tank internal air passage 15 side. I try to increase.

ここでは、外気通路14に配置した複数枚のダンパー29a、29aと洗浄槽内気通路15に配置した複数枚のダンパー29b、29bを外気通路14と洗浄槽内気通路15の両通路に設けている。このダンパー29の支点30はその重心より上方に配置して支持し、垂直面より若干傾けた弁座31で受けるようにして自重によりダンパー29は閉成する構成としている。   Here, a plurality of dampers 29a, 29a arranged in the outside air passage 14 and a plurality of dampers 29b, 29b arranged in the cleaning tank inside air passage 15 are provided in both the outside air passage 14 and the washing tank inside air passage 15. Yes. The fulcrum 30 of the damper 29 is arranged and supported above the center of gravity, and the damper 29 is closed by its own weight so as to be received by a valve seat 31 slightly inclined from the vertical plane.

また、ダンパー29の開成を開始する流体圧は洗浄槽内気通路15よりも外気通路14側を低く設定するため、外気通路14のダンパー29aの厚さT1は洗浄槽内気通路15のダンパー29bの厚さT2より薄く(T1<T2)形成し、外気通路14側のダンパー29aは洗浄槽内気通路15側のダンパー29bよりも軽くしている。   Further, since the fluid pressure for starting the opening of the damper 29 is set lower on the outside air passage 14 side than the washing tank inside air passage 15, the thickness T1 of the damper 29a of the outside air passage 14 is set to the damper 29b of the washing tank inside air passage 15. The damper 29a on the outside air passage 14 side is lighter than the damper 29b on the cleaning tank inside air passage 15 side.

また、各通路に複数枚のダンパー29a、29a、29b、29bを設けることで、ダンパー29の支点30からの長さL1、L2を短くでき、ダンパー29の全開時でもより小さいスペースに収納できるので風量分配手段12の小型化ができる。さらに、各通路の断面積を大きくすることが容易になる。   Further, by providing a plurality of dampers 29a, 29a, 29b, 29b in each passage, the lengths L1, L2 from the fulcrum 30 of the damper 29 can be shortened, and even when the damper 29 is fully opened, it can be stored in a smaller space. The air volume distribution means 12 can be downsized. Furthermore, it becomes easy to increase the cross-sectional area of each passage.

図4では、送風機6の運転により高まった風圧により外気通路14のダンパー29aが開成を開始し、洗浄槽内気通路15のダンパー29bはまだ閉止している状態を示しており、送風機6から送られた外気は図中矢印で示すように外気通路14側に流れている。   FIG. 4 shows a state in which the damper 29a of the outside air passage 14 starts to open due to the wind pressure increased by the operation of the blower 6, and the damper 29b of the cleaning tank inside air passage 15 is still closed. The outside air thus flows flows toward the outside air passage 14 as indicated by arrows in the figure.

図5は、制御手段16の風量制御部17で送風機6の風量を図4での風量よりも増加させて風圧を高めることにより、洗浄槽内気通路15のダンパー29bが開成を開始した状態を示しており、送風機6から送られた外気は外気通路14と洗浄槽内気通路15の両方に流れ、外気通路14側の風量は図中矢印の大きさで示すように洗浄槽内気通路15側より多く流れている。   FIG. 5 shows a state where the damper 29b of the cleaning tank internal air passage 15 has started to open by increasing the air pressure by increasing the air volume of the blower 6 from the air volume in FIG. The outside air sent from the blower 6 flows into both the outside air passage 14 and the washing tank inside air passage 15, and the air volume on the outside air passage 14 side is as indicated by the size of the arrow in the drawing. It is flowing more than the side.

図6は、制御手段16の風量制御部17で送風機6の風量を図5での風量よりもさらに増加させて風圧をさらに高めることにより、外気通路14側および洗浄槽内気通路15側のダンパー29a、29bが共に全開になった状態を示しており、外気通路14と洗浄槽内気通路15への流量分配は風量分配手段12では決まらず各通路での排気口7までの全圧損でそれぞれ決まる状態となる。   FIG. 6 shows that the air flow control unit 17 of the control means 16 further increases the air flow of the blower 6 from the air flow in FIG. 29a and 29b are shown in a fully open state, and the flow distribution to the outside air passage 14 and the cleaning tank inside air passage 15 is not determined by the air volume distribution means 12, but by the total pressure loss up to the exhaust port 7 in each passage. It will be decided.

ここでは、洗浄槽内気通路15側の通路圧損を外気通路14側よりも小さくしたもので、洗浄槽内気通路15を形成する洗浄槽1の断面積は充分大きいため、洗浄槽内気通路15の通路抵抗を外気通路14の通路抵抗より小さくする設計は容易であり、外気通路14の長さを長くすることや、所定流量以上では通路抵抗が増大する抵抗部(図示せず)を設けることで、乾燥運転の進行に伴い運転途中で洗浄槽内気通路15側のダンパー29bが全開したときには、洗浄槽内気通路15側の風量が外気通路14側の風量より多くしている。   Here, the passage pressure loss on the cleaning tank internal air passage 15 side is made smaller than that on the outside air passage 14 side, and the cross sectional area of the cleaning tank 1 forming the cleaning tank internal air passage 15 is sufficiently large. It is easy to design the passage resistance of 15 to be smaller than the passage resistance of the outside air passage 14, and the length of the outside air passage 14 is increased, or a resistance portion (not shown) that increases the passage resistance at a predetermined flow rate or more is provided. Thus, when the damper 29b on the cleaning tank internal air passage 15 side is fully opened during the operation as the drying operation proceeds, the air volume on the cleaning tank internal air path 15 side is greater than the air volume on the outside air passage 14 side.

以上のように構成された食器洗い乾燥機において、以下その動作、作用を説明する。洗浄およびすすぎ運転は前述の通りであり、乾燥運転では、乾燥運転開始とともに送風機6を運転して風量分配手段12に外気を送り込む。まず、洗浄槽内気通路15側にだけダンパー29を設けた場合では、外気通路14側の通路抵抗が少ないので外気通路14側への風量が洗浄槽内気通路15側より多くなり、混合部13で多い風量の外気に少ない風量の高温高湿の洗浄槽内気を混合し、冷却と水分削減をした排気を排気口7から流出させる。このように洗浄槽内気通路15側にだけダンパー29を設けることにより、送風機6から排気口7までの通路抵抗を小さくでき、送風機6の小型化、低入力化できる。 次に、外気通路14と洗浄槽内気通路15の両方にダンパー29を設けた場合、送風機6の運転時
に風量を変化させても外気通路14と洗浄槽内気通路15への分配は流体圧に応じてなされ、上記のように冷却と水分削減をした排気を排気口7から流出させるので、構成の簡素化と低コスト化ができる。
In the dishwasher configured as described above, the operation and action will be described below. The washing and rinsing operations are as described above. In the drying operation, the blower 6 is operated and the outside air is sent to the air volume distribution means 12 at the start of the drying operation. First, in the case where the damper 29 is provided only on the cleaning tank internal air passage 15 side, since the passage resistance on the external air passage 14 side is small, the air volume to the external air passage 14 side is larger than that on the cleaning tank internal air passage 15 side, In step 13, the outside air with a large air volume is mixed with the high-temperature, high-humidity cleaning tank air with a small air volume, and the exhaust gas that has been cooled and reduced in water is discharged from the exhaust port 7. Thus, by providing the damper 29 only on the cleaning tank internal air passage 15 side, the passage resistance from the blower 6 to the exhaust port 7 can be reduced, and the blower 6 can be reduced in size and input. Next, when the dampers 29 are provided in both the outside air passage 14 and the washing tank inside air passage 15, the distribution to the outside air passage 14 and the washing tank inside air passage 15 is not limited to the fluid pressure even if the air volume is changed during the operation of the blower 6. Accordingly, the exhaust gas that has been cooled and moisture-reduced as described above is allowed to flow out of the exhaust port 7, so that the configuration can be simplified and the cost can be reduced.

さらに、ダンパー29が開成を開始する流体圧は洗浄槽内気通路15側よりも外気通路14側を低くしているので、外気通路14側の風が洗浄槽内気通路15側よりも先に流れ始めさせ、排気口7から流出する排気の排気温度は外気温度から徐々に上がる状態にでき、排気温度のオーバーシュートによる高温排気が防止される。   Further, since the fluid pressure at which the damper 29 starts to open is lower on the outside air passage 14 side than on the washing tank inside air passage 15 side, the wind on the outside air passage 14 side is earlier than the washing tank inside air passage 15 side. The exhaust temperature of the exhaust gas flowing out from the exhaust port 7 can be gradually increased from the outside air temperature, and high-temperature exhaust due to an exhaust temperature overshoot is prevented.

また、ダンパー29は流体圧に応じて開成し、流体圧が低下した場合はダンパー29の自重により閉成するので、開成を開始する条件の確実な設定と流体圧が下がると確実に閉止ができるので、動作の信頼性を確保でき、構成の簡素化と低コスト化ができる。   The damper 29 opens according to the fluid pressure. When the fluid pressure decreases, the damper 29 closes due to its own weight. Therefore, the damper 29 can be reliably closed when the conditions for starting the opening are surely set and the fluid pressure decreases. Therefore, operational reliability can be ensured, and the configuration can be simplified and the cost can be reduced.

また、制御手段16の風量制御部17で送風機6の風量を制御するに際して、外気通路14側および洗浄槽内気通路15側のダンパー29a、29bが共に全開状態(図6に示す)に至らない状態、即ち洗浄槽内気通路15側のダンパー29bが全開しない風量の場合は、外気通路14側の風量は洗浄槽内気通路15側の風量より多くなり、風量分配部を簡素化した構成において制御手段16の風量制御部17で送風機6の風量制御でより確実な風量分配動作を実現でき、簡素化による低コスト化と動作の信頼性向上を両立できる。   Further, when the air volume control unit 17 of the control means 16 controls the air volume of the blower 6, the dampers 29 a and 29 b on the outside air passage 14 side and the cleaning tank inside air passage 15 side are not fully opened (shown in FIG. 6). In the state, that is, when the amount of air that the damper 29b on the side of the cleaning tank internal air passage 15 is not fully opened, the amount of air on the side of the external air passage 14 is larger than the amount of air on the side of the internal air passage 15 of the cleaning tank. The air volume control unit 17 of the control means 16 can realize a more reliable air volume distribution operation by controlling the air volume of the blower 6, and can achieve both cost reduction by simplification and improved operation reliability.

また、制御手段16の風量制御部17で送風機6の風量を制御するに際して、外気通路14側および洗浄槽内気通路15側のダンパー29a、29bが共に全開状態(図6に示す)に至らない状態、即ち、洗浄槽内気通路15側のダンパー29bが全開しない風量の場合は、外気通路14側の風量は洗浄槽内気通路15側の風量より多くなり、かつ、風量をさらに増大させて運転途中で洗浄槽内気通路15側のダンパー29bが全開したときには、洗浄槽内気通路15側の風量が外気通路14側の風量よりも多くすることで、風量分配部を簡素化した構成において制御手段16の風量制御部17で送風機6の風量制御でより確実な風量分配動作を実現でき、簡素化による低コスト化と動作の信頼性向上を両立でき、さらに両通路のダンパー29a、29bが共に全開状態となる風量以上では洗浄槽内気通路15側の風量を多くなり乾燥性能が高まるので、送風機6の風量が少ない場合から充分大きい領域まで全風量域にわたり送風機の能力を有効に活用でき、風量制御幅の拡大による乾燥性能を向上できる。   Further, when the air volume control unit 17 of the control means 16 controls the air volume of the blower 6, the dampers 29 a and 29 b on the outside air passage 14 side and the cleaning tank inside air passage 15 side are not fully opened (shown in FIG. 6). In the state, that is, when the amount of air that the damper 29b on the cleaning tank internal air passage 15 side is not fully opened, the air amount on the outside air passage 14 side is larger than the air amount on the cleaning tank internal air passage 15 side, and the air amount is further increased. When the damper 29b on the side of the cleaning tank internal air passage 15 is fully opened during operation, the air volume on the side of the cleaning tank internal air passage 15 is made larger than the air volume on the side of the external air passage 14, thereby simplifying the air volume distribution unit. The air volume control unit 17 of the control means 16 can realize a more reliable air volume distribution operation by controlling the air volume of the blower 6, achieve both cost reduction by simplification and improved operation reliability, and further provide dampers 2 for both passages. When the air flow rate a and 29b are both fully open, the air flow rate on the washing tank internal air passage 15 side is increased and the drying performance is improved. Therefore, the air blower 6 has the capacity of the blower over the entire air flow range from a small air flow rate to a sufficiently large region. It can be used effectively and drying performance can be improved by expanding the air flow control range.

なお、ダンパー29はその自重により閉止する構成を示したが、バネなどで付勢することで閉止力を与えても良く、バネの付勢力により取付姿勢の自由度を向上できる。またダンパー29は外気通路14と洗浄槽内気通路15の各通路に複数枚を配置する場合を示したが、各通路に一枚で形成しても良いのは言うまでも無く、より低コスト化できる。   Although the damper 29 is shown to be closed by its own weight, the damper 29 may be provided with a closing force by being biased by a spring or the like, and the degree of freedom of the mounting posture can be improved by the biasing force of the spring. Moreover, although the damper 29 showed the case where several sheets are arrange | positioned in each channel | path of the external air channel | path 14 and the washing tank inside air channel | path 15, it cannot be overemphasized that it is sufficient to form by one sheet | seat in each channel | path. Can be

また、ダンパー29は形状である厚さを変えて自重を変える場合を示したが、重りを付与したり比重の異なる材料に変えても良いのは言うまでも無い。   Moreover, although the damper 29 showed the case where changing the thickness which is a shape and changing own weight, it cannot be overemphasized that a weight may be provided or it may change into the material from which specific gravity differs.

以上のように、本実施の形態においては、風量分配手段を風量分配手段は、送風機の風圧で開度が変化するダンパーを洗浄槽内気通路に備えたことにより、通路抵抗を小さくでき、送風機の小型化・低入力化ができる。   As described above, in the present embodiment, the air volume distribution means is provided with a damper whose opening degree changes depending on the air pressure of the blower in the cleaning tank internal air passage, so that the passage resistance can be reduced. Can be reduced in size and input.

また、本実施の形態の風量分配手段は、送風機の風圧で開度が変化するダンパーを外気通路と洗浄槽内気通路の両方に備えたことにより、流体圧に応じた流量分配がなされるので、構成の簡素化と低コスト化ができる。   In addition, since the air volume distribution means of the present embodiment is provided with dampers whose opening degree changes depending on the wind pressure of the blower in both the outside air passage and the cleaning tank inside air passage, flow distribution according to the fluid pressure is made. Therefore, the structure can be simplified and the cost can be reduced.

また、本実施の形態のダンパーは、開成を開始する風圧を洗浄槽内気通路側よりも外気
通路側を低く設定したことにより、乾燥開始時に外気通路側の風が洗浄槽内気通路側よりも先に流れ始めさせ、排気温度は外気温度から徐々に上がる状態にできるため、排気温度のオーバーシュートによる高温排気を防止する。
In addition, the damper of the present embodiment sets the wind pressure at which opening starts to be lower on the outside air passage side than the washing tank inside air passage side, so that the wind on the outside air passage side from the washing tank inside air passage side at the start of drying Since the exhaust gas temperature can be gradually increased from the outside air temperature, the exhaust gas can be prevented from high temperature exhaust due to exhaust gas overshoot.

また、本実施の形態のダンパーは、支点を重心より上方に配置して自重により閉成する構成とし、外気通路側は洗浄槽内気通路側よりも重量を軽くしたことにより、確実な閉止がなされ、また開成を開始する条件の確実な設定がなされて動作の信頼性を確保できるとともに、構成の簡素化と低コスト化ができる。   In addition, the damper of the present embodiment has a structure in which the fulcrum is disposed above the center of gravity and is closed by its own weight, and the outside air passage side is lighter than the washing tank inside air passage side, so that the reliable closing can be achieved. In addition, a reliable setting of the conditions for starting the opening can be performed to ensure the reliability of the operation, and the configuration can be simplified and the cost can be reduced.

また、本実施の形態の制御手段は、送風機の運転開始時には洗浄槽内気通路側のダンパーが全開しない風量に設定し、外気通路側の風量を洗浄槽内気通路側の風量より多くしたことにより、風量分配手段を簡素化した構成においてより確実な風量分配動作を実現できるので、簡素化による低コスト化と動作の信頼性向上を両立できる。   Further, the control means of the present embodiment is set so that the damper on the air passage side of the cleaning tank is not fully opened at the start of the operation of the blower, and the air volume on the outside air passage side is made larger than the air volume on the cleaning tank internal air passage side As a result, a more reliable air volume distribution operation can be realized in a configuration in which the air volume distribution means is simplified, so that both cost reduction and improved operation reliability can be achieved.

また、本実施の形態の制御手段は、送風機の運転開始時には洗浄槽内気通路側のダンパーが全開しない風量に設定し、外気通路側の風量を洗浄槽内気通路側の風量より多くし、かつ、運転途中で洗浄槽内気通路側のダンパーが全開したときには、洗浄槽内気通路側の風量が外気通路側の風量より多くしたことにより、風量分配手段を簡素化した構成においてより確実な風量分配動作を実現できるので、簡素化による低コスト化と動作の信頼性向上を両立でき、さらに風量制御幅の拡大による乾燥性能の向上ができる。   Further, the control means of the present embodiment is set to an air volume at which the damper on the washing tank internal air passage side is not fully opened at the start of the operation of the blower, and the air quantity on the outside air passage side is made larger than the air quantity on the washing tank internal air passage side, In addition, when the damper on the side of the cleaning tank internal air passage is fully opened during operation, the air volume on the side of the cleaning tank internal air passage is larger than the air volume on the side of the outside air passage. Since air volume distribution operation can be realized, both cost reduction by simplification and improvement of operation reliability can be achieved, and further, drying performance can be improved by expanding the air volume control width.

以上のように、本発明にかかる食器洗い乾燥機は、乾燥時の排気温度の熱風感の確実な防止と発生する高温高湿の空気条件に応じた冷却ができるので、蒸気を発生する炊飯器や電気湯沸し器などの家庭用機器などに適用することができる。   As described above, the dishwasher according to the present invention can surely prevent the hot air feeling of the exhaust temperature during drying and can be cooled according to the generated high-temperature and high-humidity air conditions. It can be applied to household appliances such as electric water heaters.

本発明の実施の形態1における食器洗い乾燥機の構成図The block diagram of the dishwasher in Embodiment 1 of this invention 同食器洗い乾燥機の風量分配手段の断面図Sectional view of air volume distribution means of the dishwasher 同食器洗い乾燥機の風量分配手段の他の状態を示す断面図Sectional drawing which shows the other state of the air volume distribution means of the dishwasher 本発明の実施の形態2における風量分配手段の断面図Sectional drawing of the air volume distribution means in Embodiment 2 of this invention 同食器洗い乾燥機の風量分配手段の他の状態を示す断面図Sectional drawing which shows the other state of the air volume distribution means of the dishwasher 同食器洗い乾燥機の風量分配手段の他の状態を示す断面図Sectional drawing which shows the other state of the air volume distribution means of the dishwasher 従来の食器洗い乾燥機の構成図Configuration of conventional dishwasher

符号の説明Explanation of symbols

1 洗浄槽
4 洗浄手段
5 加熱手段
6 送風機
7 排気口
9 乾燥手段
12 風量分配手段
13 混合部
14 外気通路
15 洗浄槽内気通路
16 制御手段
20 弁体部
29 ダンパー
DESCRIPTION OF SYMBOLS 1 Cleaning tank 4 Cleaning means 5 Heating means 6 Blower 7 Exhaust port 9 Drying means 12 Air volume distribution means 13 Mixing part 14 Outside air path 15 Cleaning tank inside air path 16 Control means 20 Valve body part 29 Damper

Claims (5)

被洗浄物を収納する洗浄槽と、洗浄水を被洗浄物に噴出循環させる洗浄手段と、洗浄水を加熱する加熱手段と、前記洗浄槽内部の湿気を排出する排気口と送風機を有する乾燥手段と、前記乾燥手段を制御する制御手段を備え、前記乾燥手段は、前記排気口の上流側に配置した外気と洗浄槽内気を混合する混合部と、外気と洗浄槽内気との混合割合を変化させる風量分配手段を有し、乾燥運転時は、前記送風機を動作させて前記風量分配手段により外気を混合部へ導入する外気通路と、前記洗浄槽を経て前記混合部に連通する洗浄槽内気通路とに分流し、前記洗浄槽内への風量を変化させるようにした食器洗い乾燥機。 A cleaning tank for storing an object to be cleaned, a cleaning means for spraying and circulating cleaning water to the object to be cleaned, a heating means for heating the cleaning water, an exhaust port for discharging moisture inside the cleaning tank, and a drying means having a blower And a control means for controlling the drying means, the drying means is a mixing unit for mixing the outside air and the cleaning tank inside air arranged upstream of the exhaust port, and the mixing ratio of the outside air and the cleaning tank inside air An air flow distribution means for changing the flow rate, and during the drying operation, an air passage for operating the blower and introducing outside air to the mixing section by the air volume distribution means, and a cleaning tank communicating with the mixing section through the cleaning tank A dishwasher which diverts into an inside air passage and changes the air flow into the washing tank. 送風機は、風量分配手段の上流側に配置した請求項1記載の食器洗い乾燥機。 The dishwasher according to claim 1, wherein the blower is disposed upstream of the air volume distribution means. 風量分配手段は、前記外気通路と前記洗浄槽内気通路の開口面積を変化させる弁体部を備えた請求項1または2に記載の食器洗い乾燥機。 The dishwasher / dryer according to claim 1 or 2, wherein the air volume distribution means includes a valve body section that changes an opening area of the outside air passage and the washing tank inside air passage. 風量分配手段は、乾燥運転開始時には、外気通路へ風量を洗浄槽内気通路より多くなるようにした請求項3記載の食器洗い乾燥機。 4. The dishwasher according to claim 3, wherein the air volume distributing means is configured to increase the air volume to the outside air passage from the washing tank inside air passage when the drying operation is started. 風量分配手段は、洗浄運転中あるいはすすぎ運転中は洗浄槽内気通路を閉じるようにした請求項3記載の食器洗い乾燥機。 4. The dishwasher according to claim 3, wherein the air volume distribution means closes the air passage in the washing tank during the washing operation or the rinsing operation.
JP2006193816A 2006-07-14 2006-07-14 Dishwasher Active JP4238887B2 (en)

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JP2006193816A JP4238887B2 (en) 2006-07-14 2006-07-14 Dishwasher
TW096123052A TW200808250A (en) 2006-07-14 2007-06-26 Dishwasher/dryer
KR1020070069966A KR100841858B1 (en) 2006-07-14 2007-07-12 Dish washing and drying machine
CNU2007201526823U CN201085610Y (en) 2006-07-14 2007-07-13 Cleaning and drying machine for tableware
CN200710136063XA CN101103896B (en) 2006-07-14 2007-07-13 Dishware cleaning and drying machine

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EP3666158A1 (en) * 2018-11-15 2020-06-17 Miele & Cie. KG Drying device for a water-conveying cleaning device

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CN101103896A (en) 2008-01-16
CN101103896B (en) 2010-10-13
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JP2008018129A (en) 2008-01-31
TW200808250A (en) 2008-02-16

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