JPH0428988A - Evaporator for meltwater due to defrosting - Google Patents

Abstract

PURPOSE:To facilitate efficient evaporation of meltwater due to defrosting and power saving by arranging a heat conduction pipe in which refrigerant circulating heater is held and a high temperature and -pressure pipe in closely contact with each other in a recessed part of an evaporation pan, causing the pan to conduct heat. CONSTITUTION:A cooling pipe 29 is provided at the back upper part of an inner box 23 in contact with a heat conduction plate 30 and a thermostat and pushswitch 32 are provided for automatic defrosting. A drain hose 28 is led to an evaporation pan 33 having a recessed part C, in which a heat conduction pipe 35 holding a refrigerant circulating heater 34 in it and a high temperature and -pressure pipe 36 are arranged in closely contact with each other, allowing good heat conduction. Thus, water which has been got by defrosting the cooling pipe 29 and heat conduction plate 30 at the upper part of the inner box 23 can be evaporated easily by heat exchange of the heat conduction pipe 35 and high temperature and -pressure pipe 36 arranged in the recessed part C of the evaporation pan 33.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、冷蔵庫において霜とりして出る水分を蒸発、
乾燥させる霜とり水の蒸発装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention is a method for evaporating moisture produced by defrosting in a refrigerator.
This invention relates to an evaporation device for defrosting water to be dried.

（従来の技術） 従来の冷蔵庫は、たとえばエレクトロラックス社の製品
番号ＲＥ−８００（１９８９年４月発売）の冷蔵庫に見
られるように、いわゆる霜とりをして出る水分（以下、
霜とり水という）を蒸発させるには、水の蒸発皿を冷蔵
庫の下部に設けた高温高圧パイプに密着させて取付け、
冷蔵庫の内箱と一体に成形した露受は皿の排水孔に、冷
蔵庫壁を貫通して冷蔵庫外に霜とり水を導くドレンガイ
ドを密着させ、それにドレンホースを接続して霜とり水
を蒸発皿に導いて蒸発させる構造である。(Prior Art) Conventional refrigerators, such as those seen in Electrolux's product number RE-800 (released in April 1989), use moisture (hereinafter referred to as
To evaporate the water (also known as defrosting water), attach the water evaporation pan tightly to the high-temperature, high-pressure pipe installed at the bottom of the refrigerator.
The drain tray, which is molded integrally with the inner box of the refrigerator, has a drain guide that penetrates the refrigerator wall and guides defrost water out of the refrigerator, and is in close contact with the drain hole of the tray, and a drain hose is connected to it to allow the defrost water to evaporate. It has a structure that leads it to a dish and evaporates it.

第６図は上記のような従来の霜とり水の蒸発装置を示す
冷蔵庫の背面図、第７図はその側面要部の縦断面図、第
８図は第７図の側面要部の部分縦断面図である。これら
の図において１は冷蔵庫本体、２は外箱、３は内箱であ
り、それらの各箱の間は断熱材４が充填されている。内
箱３で構成された庫内の奥上部には露受は皿５が内箱３
と一体成形され、その排水孔６には冷蔵庫壁を貫通して
庫外に霜とり水を導出するドレンガイド７が密着されて
おり、その端部にドレンホース８が接続されで冷蔵庫の
下部に設けた高温高圧パイプ９に密着させた蒸発皿１０
に霜とり水を導いている。１１は冷却パイプで熱伝導板
１２と密着して設けである。Fig. 6 is a rear view of a refrigerator showing the conventional defrosting water evaporation device as described above, Fig. 7 is a vertical sectional view of the main part of the side, and Fig. 8 is a partial longitudinal sectional view of the main part of the side of Fig. 7. It is a front view. In these figures, 1 is a refrigerator main body, 2 is an outer box, and 3 is an inner box, and a heat insulating material 4 is filled between the boxes. In the upper part of the back of the refrigerator which is made up of the inner box 3, there is a tray 5 that is placed inside the inner box 3.
A drain guide 7 that penetrates the refrigerator wall and directs defrosting water to the outside of the refrigerator is closely attached to the drain hole 6, and a drain hose 8 is connected to the end of the drain guide 7, which is connected to the bottom of the refrigerator. An evaporating dish 10 that is brought into close contact with a high-temperature, high-pressure pipe 9 provided
The defrost water is guided to the A cooling pipe 11 is provided in close contact with the heat conduction plate 12.

一方、冷却パイプ１１と熱伝導板１２に付着する霜を自
然に融解するために、サーモスタット１３と、ブツシュ
スイッチ１４により駆動される冷媒循環用のヒータ１５
が、熱伝導管１６内に高温高圧パイプ９に密着して収め
られ、断熱材１８、さらに熱伝導板１９によって覆われ
ている。On the other hand, in order to naturally melt the frost adhering to the cooling pipe 11 and the heat conduction plate 12, a heater 15 for circulating the refrigerant is driven by a thermostat 13 and a bushing switch 14.
is housed in the heat conduction tube 16 in close contact with the high temperature and high pressure pipe 9, and is covered with a heat insulating material 18 and a heat conduction plate 19.

従来の霜とりの蒸発装置は上記のように構成され次のよ
うに動作する。A conventional defrosting evaporator is constructed as described above and operates as follows.

冷蔵庫内の奏上部に設けである冷却パイプ１１と熱伝導
板１２とにより霜を融解した霜とり水は、外箱２の下部
に設けた蒸発皿１０に密着する高温高圧パイプ９によっ
て自然に蒸発させることができる。The defrosting water that melts the frost by the cooling pipe 11 and heat conduction plate 12 provided in the storage section of the refrigerator is naturally evaporated by the high-temperature and high-pressure pipe 9 that is in close contact with the evaporation tray 10 provided at the bottom of the outer box 2. can be done.

すなわち、冷却パイプ１１と熱伝導板１２に冷却時に付
着した霜は、サーモスタット１３のブツシュスイッチ１
４をオフにすることにより、同時に冷媒循環用のヒータ
１５への通電がオフにされて、冷却が停止され霜とりが
開始され、冷却パイプ１１と熱伝導板１２に付着した霜
は自然に融解され水となり、内箱３の奏上部の霜受は皿
５に落下し、その水は露受は皿５の排水孔６から、ドレ
ンガイド７を経てドレンホース８により蒸発皿ＩＯに導
かれる。その蒸発皿１０に溜まった霜とり水は、高温高
圧パイプ９の熱により自然蒸発されることになる。That is, the frost that adheres to the cooling pipe 11 and the heat conductive plate 12 during cooling is removed from the bushing switch 1 of the thermostat 13.
4, the power supply to the heater 15 for refrigerant circulation is turned off at the same time, cooling is stopped and defrosting is started, and the frost attached to the cooling pipe 11 and the heat conduction plate 12 is naturally melted. The frost tray on the top of the inner box 3 falls into the tray 5, and the water is led from the drain hole 6 of the tray 5, through the drain guide 7, to the evaporation tray IO by the drain hose 8. The defrosting water accumulated in the evaporating dish 10 is naturally evaporated by the heat of the high temperature and high pressure pipe 9.

一方、上記サーモスタット１３は、ある一定温度でオン
となって、ブツシュスイッチ１４を自動的にオンとして
冷媒循環用のヒータ１５に通電され、再び冷却運転され
る。On the other hand, the thermostat 13 is turned on at a certain constant temperature, and the bushing switch 14 is automatically turned on to energize the heater 15 for refrigerant circulation, and the cooling operation is resumed.

（発明が解決しようとする課題） 以上のような従来の冷蔵庫の霜とり水の蒸発装置は、蒸
発皿ｌＯが高温高圧パイプ９との熱伝導効率が悪いため
水の蒸発能力が小さく、したがって常時、蒸発皿ＩＯに
霜とり水が残ることになり、冷蔵庫のドアの開閉を頻繁
に行なうと、冷却パイプ１１と熱伝導板１２に多量の霜
が付着し、その霜とりをして融解した水は露受は皿５の
排水孔６から、ドレンホース８を経て直接蒸発皿１０に
流れ溢れ出る問題があった。(Problems to be Solved by the Invention) In the conventional refrigerator defrost water evaporation device as described above, the evaporating dish 1O has poor heat conduction efficiency with the high temperature and high pressure pipe 9, so the water evaporation capacity is small, and therefore If you open and close the door of the refrigerator frequently, a large amount of frost will adhere to the cooling pipe 11 and the heat conduction plate 12. There was a problem in that the condensate drained from the drain hole 6 of the dish 5, passed through the drain hose 8, and directly overflowed into the evaporation dish 10.

本発明は上記従来の冷蔵庫の問題点に鑑み、霜とり水が
溢れない蒸発装置の提供を目的とする。In view of the above problems of conventional refrigerators, the present invention aims to provide an evaporator that does not overflow with defrosting water.

（課題を解決するための手段） 本発明は上記の目的を、冷蔵庫内の奏上部に設けた冷却
パイプと、それに隣接して熱伝導する熱伝導板と、前記
冷却パイプの下方に形成され冷蔵庫の内箱と一体成形さ
れた、冷蔵座壁を貫通するドレンガイドを排水孔に密着
させた露受は皿と、上記ドレンガイドに接続されたドレ
ンホースと。(Means for Solving the Problems) The present invention aims to achieve the above-mentioned object by providing a cooling pipe provided in a refrigerating section in a refrigerator, a heat conductive plate adjacent to the cooling pipe that conducts heat, and a cooling pipe provided below the cooling pipe in the refrigerator. The drain tray is made up of a drain guide that is integrally molded with the inner box and that passes through the refrigerator seat wall and is in close contact with the drain hole, and a drain hose that is connected to the drain guide.

及び凹溝部を形成した蒸発皿とからなり、上記凹溝部に
冷媒循環用ヒータを収容した熱伝導管と、高温高圧パイ
プを接触収容させて上記凹溝部を介して霜とり水と熱交
換を行なう構成としたことを特徴とする霜とり水の蒸発
装置によって達成する。and an evaporating dish with a groove formed therein, and a heat conduction tube housing a heater for refrigerant circulation in the groove and a high-temperature, high-pressure pipe are accommodated in contact with each other to exchange heat with the defrosting water through the groove. This is achieved by a defrost water evaporation device characterized by the following structure.

（作　用） 上記構成の本発明によれば、蒸発皿の凹溝部を介して霜
とり水が、冷媒循環ヒータを収納した熱伝導管と、これ
に密着した高温高圧パイプと熱交換するから、ドレンホ
ースからの霜とり水が容易に高温になり、したがって霜
とり水の蒸発が活発に行なわれて水の溢れる問題が解決
される。(Function) According to the present invention having the above configuration, the defrosting water exchanges heat with the heat conduction tube housing the refrigerant circulation heater and the high temperature and high pressure pipe in close contact with the heat conduction tube through the concave groove of the evaporating dish. The defrosting water from the drain hose easily reaches a high temperature, so that the defrosting water actively evaporates, and the problem of overflowing water is solved.

（実施例） 以下、図面を用いて実施例により本発明の説明する。(Example) Hereinafter, the present invention will be explained by examples using the drawings.

第１図は本発明の一実施例の霜とり水の蒸発装置を説明
する冷蔵庫の背面図、第２図は第１図の側面要部の縦断
面図、第３図は第２図の側面要部の縦断面図、第４図は
第３図の要部横断面図、第５図は蒸発皿の一例を示す斜
視図である。Fig. 1 is a rear view of a refrigerator illustrating a defrost water evaporation device according to an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of the main part of the side of Fig. 1, and Fig. 3 is a side view of Fig. 2. FIG. 4 is a cross-sectional view of the main part of FIG. 3, and FIG. 5 is a perspective view of an example of the evaporating dish.

これらの図において、２１は冷蔵庫本体、２２は外箱、
２３は内箱でそれらの間には断熱材２４が充填されてい
る。内箱２３で構成された冷蔵庫内部の奏上部には、露
受は皿２５が内箱２３と一体に成形されており、その排
水孔２６にはドレンガイド２７が密着して取付けられて
冷蔵庫壁を貫通し、ドレンホース２８と接続されている
。In these figures, 21 is the refrigerator body, 22 is the outer box,
23 is an inner box, and a heat insulating material 24 is filled between them. A drain tray 25 is molded integrally with the inner box 23 in the opening part of the inside of the refrigerator consisting of an inner box 23, and a drain guide 27 is attached to the drain hole 26 in close contact with the refrigerator wall. It penetrates through and is connected to the drain hose 28.

上記内箱２３の奏上部には冷却パイプ２９が熱伝導板３
０と接触して設けてあり、これらに付着する霜を自然融
解させるために、サーモスタット３１とブツシュスイッ
チ３２が設けである。上記ドレンホース２８は、凹溝部
Ｃを有する蒸発皿３３に導かれると共に、その凹溝部Ｃ
に冷媒循環用ヒータ３４を収納した熱伝導管３５と、高
温高圧パイプ３６とが接触配置されて熱伝導良好に収容
されている。A cooling pipe 29 is connected to the heat conduction plate 3 at the top of the inner box 23.
A thermostat 31 and a bushing switch 32 are provided in order to naturally melt the frost that adheres to these. The drain hose 28 is guided to an evaporating dish 33 having a groove C, and
A heat conduction tube 35 housing a refrigerant circulation heater 34 and a high temperature/high pressure pipe 36 are disposed in contact with each other and are housed to ensure good heat conduction.

以上のように構成する本発明は、まず、蒸発皿３３の凹
溝部Ｃに、冷媒循環用ヒータ３４を収納した熱伝導管３
５と高温高圧パイプ３６とが密着して配置されているか
ら良好な熱伝導が行なわれることになり、そのため、ド
レンホース２８から蒸発皿３３に流れる、上記内箱２３
の上部に設けた冷却パイプ２９及び熱伝導板３０に付着
した霜をとった霜とり水は、蒸発皿３３に形成した凹溝
部Ｃに配置された上記熱伝導管３５と高温高圧パイプ３
６との熱交換により、蒸発皿３３の霜とり水を容易に蒸
発させることになる。すなわち、蒸発皿３３における霜
とり水は、良好な蒸発するから溢れが解消される。The present invention configured as described above first includes a heat transfer tube 3 in which a refrigerant circulation heater 34 is housed in a concave groove C of an evaporation plate 33.
5 and the high-temperature and high-pressure pipe 36 are arranged in close contact with each other, good heat conduction is achieved.
The defrosting water that removes the frost adhering to the cooling pipe 29 and the heat conduction plate 30 provided on the upper part of the heat conduction pipe 35 and the high temperature and high pressure pipe 3 arranged in the groove C formed in the evaporation plate 33
6, the defrost water in the evaporating dish 33 can be easily evaporated. That is, the defrosting water in the evaporating dish 33 evaporates well, so overflow is eliminated.

（発明の効果） 以上説明して明らかなように本発明は、蒸発皿に形成し
た凹溝部に、冷媒循環用ヒータ髪収納した熱伝導管及び
高温高圧パイプとを密着させて。(Effects of the Invention) As is clear from the above description, in the present invention, a heat conduction tube and a high-temperature/high-pressure pipe containing a heater for refrigerant circulation are brought into close contact with a concave groove formed in an evaporating dish.

蒸発皿に熱伝導を行なわせるから、霜とり水は高能率で
蒸発して溢れる問題が解消されると同時に、熱伝導管と
高温高圧パイプが霜とり水によって低温にされるから熱
の吸収作用が促進され、電力消費が低減される効果があ
る。Because the evaporation plate conducts heat, the defrosting water evaporates with high efficiency, eliminating the problem of overflow.At the same time, the heat conduction tube and high-temperature high-pressure pipe are cooled by the defrosting water, which absorbs heat. This has the effect of promoting energy consumption and reducing power consumption.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の霜とり水の蒸発装置の一実施例を説明
する冷蔵庫の背面図、第２図は第１図の側面要部の縦断
面図、第３図は第２図の側面要部の縦断面図、第４図は
第３図の要部横断面図、第５図は蒸発皿の一例を示す斜
視図、第６図は従来例を示す冷蔵庫の背面図、第７図は
その側面要部の縦断面図、第８図は第７図の側面要部の
部分縦断面図である。 ２１・・・冷蔵庫本体、２２・・・外箱、２３・・・内
箱、２４・・・断熱材、２５・・・露受は皿、２６・・
・排水孔、２７・・・　ドレンガイド。 ２８・・・　ドレンホース、２９・・・冷却パイプ、３
０・・・熱伝導板、３１・・・サーモスタット、３２・
・・ブツシュスイッチ、３３・・・蒸発皿、３４・・・
冷媒循環用ヒータ、３５・・管、３６・・・高温高圧パ
イプ。 熱伝導Fig. 1 is a rear view of a refrigerator illustrating an embodiment of the defrosting water evaporation device of the present invention, Fig. 2 is a vertical sectional view of the main part of the side of Fig. 1, and Fig. 3 is a side view of Fig. 2. 4 is a cross-sectional view of the main part of FIG. 3, FIG. 5 is a perspective view showing an example of an evaporating dish, FIG. 6 is a back view of a conventional refrigerator, and FIG. 7 is a longitudinal sectional view of the main part. 8 is a longitudinal cross-sectional view of the main part of the side surface of FIG. 7, and FIG. 8 is a partial vertical cross-sectional view of the main part of the side surface of FIG. 21...Refrigerator body, 22...Outer box, 23...Inner box, 24...Insulating material, 25...Drain tray, 26...
・Drain hole, 27... Drain guide. 28... Drain hose, 29... Cooling pipe, 3
0... Heat conduction plate, 31... Thermostat, 32...
...button switch, 33...evaporation dish, 34...
Refrigerant circulation heater, 35...pipe, 36...high temperature and high pressure pipe. heat conduction

Claims (1)

【特許請求の範囲】[Claims] 冷蔵庫内の奥上部に設けた冷却パイプと、それに隣接し
て熱伝導する熱伝導板と、前記冷却パイプの下方に形成
され冷蔵庫の内箱と一体成形された、冷蔵庫壁を貫通す
るドレンガイドを排水孔に密着させた露受け皿と、上記
ドレンガイドに接続されたドレンホースと、及び凹溝部
を形成した蒸発皿とからなり、上記凹溝部に冷媒循環用
ヒータを収容した熱伝導管と、高温高圧パイプを接触収
容させて上記凹溝部を介して霜とり水と熱交換を行なう
構成としたことを特徴とする霜とり水の蒸発装置。A cooling pipe installed at the upper part of the inside of the refrigerator, a heat conductive plate adjacent to the cooling pipe that conducts heat, and a drain guide formed below the cooling pipe and integrally molded with the inner box of the refrigerator and penetrating the refrigerator wall. It consists of a dew pan that is in close contact with the drain hole, a drain hose that is connected to the drain guide, and an evaporation tray that has a recessed groove. A defrost water evaporation device characterized in that a high-pressure pipe is accommodated in contact with the defrost water to exchange heat with the defrost water through the groove.