JPH0490470A - Automatic ice making device - Google Patents

Abstract

PURPOSE:To enable ice blocks having a high degree of transparency and a high degree of purity to be dropped into an ice storing box and stored there by a method wherein after a freezing action in one direction from a water surface downwardly with cold air in a cooling chamber under a thermal insulating action of a thermal insulating tank and a heating action by a heater from below, an ice making pan is rotated and reversed to release ice blocks. CONSTITUTION:Cold air cooled by a cooling device 8 under operation of a blower 9 is forcedly aerated over the water surface in an ice making pan 33 through an aeration passage 59. Concurrently, heating action of a heater 32 disposed at a bottom surface in a thermal insulating tank 28 is started and a metallic plate 30 at a bottom surface is heated. An outer circumference of the ice making pan 33 is enclosed by the thermal insulating material 31 in the thermal insulating tank 28, a cooling action from the outer circumference is restricted and then a freezing action is promoted in one direction from above the ice making pan 33 downwardly. When the ice blocks show a proper thickness, a heater 48 of a water discharging pan 46 is electrically energized and a compressor 53 and a blower 9 are stopped for a specified period of time. After this operation, the water discharging pan 46 is sufficiently heated up in its temperature, the driving device 40 is operated and the first and second supporting shafts 38 and 39 start to rotate, a water splashing pan 37 is reversed to rotate and set above the water discharging pan 46 and subsequently the ice making pan 33 is rotated and rotated above the water splashing pan 37.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は冷蔵庫に備えられ、特に透明な氷を自動的に生
成可能とする自動製氷装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic ice-making device that is installed in a refrigerator and is particularly capable of automatically producing transparent ice.

従来の技術 従来より一部家庭用の冷蔵庫で採用されている自動製氷
装置については例えば特開平１−２３４７７１号公報に
示すものがあり、その内容を第７図及び第８図に従い説
明する。2. Description of the Related Art An automatic ice making device that has been conventionally employed in some household refrigerators is disclosed in, for example, Japanese Unexamined Patent Publication No. 1-234771, the contents of which will be explained with reference to FIGS. 7 and 8.

１は冷蔵庫本体で外箱２．内箱３及び前記外箱２、内箱
３間に充填された断熱材４により構成されている。６は
前記冷蔵庫本俸１の内部を上下に区画する区画壁であり
、上部に冷凍室６．下部に冷蔵室７を区画形成している
。1 is the refrigerator itself, and 2 is the outer box. It is composed of an inner box 3 and a heat insulating material 4 filled between the outer box 2 and the inner box 3. Reference numeral 6 denotes a partition wall that divides the inside of the refrigerator 1 into upper and lower sections, and a freezer compartment 6. A refrigerating chamber 7 is defined in the lower part.

８は前記冷凍室６の背面に備えた冷凍サイクルの冷却器
であり、９は前記冷却器８で冷却した冷気を前記冷凍室
ら及び冷蔵室７に強制通風するための送風機である。8 is a refrigeration cycle cooler provided on the back side of the freezer compartment 6, and 9 is a blower for forcing the cold air cooled by the cooler 8 into the freezer compartment and the refrigerator compartment 7.

次に１０は前記冷凍室ｅ内に備えた自動製氷機であり、
モータ、減速ギア群（図示せず）等を内蔵した駆動装置
１１．中央部に支持軸１２を連結固定した製氷皿１３．
前記駆動装置１１に前記製氷皿１２を軸支させるための
フレーム１４等より構成される。尚、１５は前記製氷皿
１３を歪み変形させて離氷を行なわせるために前記駆動
装置１１の外殻の一部に設けたストッパーであり、１６
は前記ストッパー１６に当接する様に前記製氷皿１３上
に取付けた当て板である。又、１７ば＠記自動製氷＄１
１０の下方に備えた貯氷箱である。Next, 10 is an automatic ice maker provided in the freezer compartment e,
A drive device 11 containing a motor, a group of reduction gears (not shown), etc. An ice tray 13 with a support shaft 12 connected and fixed in the center.
It is composed of a frame 14 and the like for pivotally supporting the ice tray 12 on the drive device 11. Note that 15 is a stopper provided on a part of the outer shell of the drive device 11 in order to distort and deform the ice tray 13 to remove ice;
is a backing plate attached to the ice tray 13 so as to come into contact with the stopper 16. Also, 17th grade automatic ice making $1
It is an ice storage box provided below 10.

１８は製氷用の水を貯水するための給水タンクであり、
前記冷蔵室７内の一画に着脱自在に備えられる。又１９
は前記給水タンク１８の給水口であり、弁２０によって
開閉される。２１は前記給水タンク１８の給水口１９の
下方に設けた貯水皿であり、前記給水口１９を下向けに
して前記給水タンク１８をセットすると、前記弁２ｏが
押し上げられて前記給水口１９が開口される様構成され
ている。又、２２は前記貯水皿２１内に受けた水を揚水
するための給水ポンプであり、２３は前記給水ポンプ２
２に連結して、その出口を前記自動製氷＠１０の製氷皿
１３に臨ませるように配設した給水管である。18 is a water tank for storing water for ice making;
It is detachably provided in one section of the refrigerator compartment 7. Also 19
is a water supply port of the water supply tank 18, which is opened and closed by a valve 20. 21 is a water storage tray provided below the water supply port 19 of the water supply tank 18, and when the water supply tank 18 is set with the water supply port 19 facing downward, the valve 2o is pushed up and the water supply port 19 is opened. It is configured so that Further, 22 is a water supply pump for pumping water received in the water storage tray 21, and 23 is a water supply pump 2.
This is a water supply pipe that is connected to 2 and is arranged so that its outlet faces the ice tray 13 of the automatic ice maker @10.

かかる構成において、使用者によって水を満たされた給
水タンク１８が所定の位置にセットされると、弁２ｏが
押し上げられて給水口１９が開口して貯水皿２１内に水
が満たされる。その後、満たされた水は給水ポンプ２２
によって揚水され、給水管２３を介して製氷皿１３内に
注水される。In this configuration, when the water supply tank 18 filled with water is set at a predetermined position by the user, the valve 2o is pushed up, the water supply port 19 is opened, and the water storage tray 21 is filled with water. After that, the filled water is transferred to the water supply pump 22
The water is pumped up and poured into the ice tray 13 via the water supply pipe 23.

こうして製氷皿１３内に所定置部たされた水は冷凍室θ
内での冷却作用によって氷結され、氷が生成される。そ
して、製氷が終了すると駆動装置１１の回転作用によっ
て製氷皿１３が支持軸１２を中心として回動反転し、ス
トッパー１６に当て板１６が当接することによって製氷
皿１３が歪み変形を生じて製氷皿１３内の氷が離氷され
る。又、離氷された氷は貯氷箱１７内に落下して貯氷さ
れ、離氷作用の終了した製氷皿１３は再び駆動装置１１
による逆回転作用によって元の状態に復帰する。The water thus placed in a predetermined position in the ice tray 13 is stored in the freezer compartment θ.
The cooling effect within the container causes it to freeze, producing ice. When ice making is completed, the ice making tray 13 rotates in reverse around the support shaft 12 due to the rotational action of the drive device 11, and as the backing plate 16 comes into contact with the stopper 16, the ice making tray 13 is distorted and deformed. The ice within 13 is released. Further, the ice that has been released falls into the ice storage box 17 and is stored, and the ice tray 13 whose ice removal action has been completed is returned to the drive device 11.
It returns to its original state by the reverse rotation action.

以後この作用を給水タンク１８内の水を使い切るまで繰
υ返して、自動的に製氷、貯水を行なうものである。Thereafter, this action is repeated until the water in the water supply tank 18 is used up, and ice is made and water is stored automatically.

発明が解決しようとする課題 しかしながら、このような製氷方法であると、氷が生成
さｎる際の製氷皿１３内の水の凍結が、製氷皿１３と水
との接触面及び冷禾と水との接触面から中央部に進行し
ていくため、水中に溶解している気体成分や溶解性塩類
や非出解性の不純物が氷の中央部に封じ込められて、結
果的に中央部が白濁した不透明な、また純度が低くて味
も良くない氷となり、例えばウィスキー等の飲料用をは
じめとして官能的に適した氷にならないという問題点が
あった。Problems to be Solved by the Invention However, with such an ice making method, freezing of the water in the ice tray 13 when ice is generated may cause damage to the contact surface between the ice tray 13 and the water and the ice cubes and the water. As the water progresses from the contact surface to the center, gaseous components, soluble salts, and undissolved impurities dissolved in the water are trapped in the center of the ice, resulting in a cloudy center. The problem is that the resulting ice is opaque, has low purity, and does not have a good taste, and is not sensually suitable for use in beverages such as whisky.

本発明は上述した問題点を解消するものであり、透明度
が高く、純度の高い氷を生成出来る自動製氷装置を提供
することを目的としている。The present invention solves the above-mentioned problems, and aims to provide an automatic ice making device that can produce highly transparent and highly pure ice.

課題を解決するための手段 上記課題全解決するために本発明の冷蔵庫等の自動製氷
装置は、冷却室の一画に備えた上面を開口して内面底部
にヒータを配設した断熱槽内に製氷皿を重合させ、この
製氷皿と並設した水切皿とともに夫々の支持軸を軸とし
て回動させる駆動装置を設ける。そして水切皿の下方に
設けた排水口。Means for Solving the Problems In order to solve all of the above problems, an automatic ice making device such as a refrigerator according to the present invention is provided in a heat insulating tank provided in one section of the cooling chamber, the top surface of which is open, and a heater provided at the bottom of the inner surface. A driving device is provided for superimposing the ice making tray and rotating the ice making tray and a draining tray arranged in parallel about their respective support shafts. And a drain hole installed below the draining tray.

前記排水皿の下方にヒータを設け、前記ヒータ通電中は
圧縮機と送風機を強制的に停止させるように制御する。A heater is provided below the drain tray, and the compressor and the blower are controlled to forcibly stop while the heater is energized.

そして水切皿の下方には排水皿とこれに連結した排水管
を、又、冷却室外には給水タンクと、この水を受ける貯
水皿及び給水ポンプを設け、製氷皿上面まで給水管を導
くように構成したものである。A drain tray and a drain pipe connected to it are installed below the drain tray, and a water supply tank, a water storage tray for receiving this water, and a water supply pump are installed outside the cooling chamber, and the water supply pipe is led to the top of the ice tray. It is composed of

作　　　用 本発明は上記した構成によって、給水タンク内の水が貯
水皿を介して給水管を経て製氷皿内に所定量給水される
と、断熱槽による断熱作用と下面からのヒータによる加
熱作用で、冷却室内の冷気によって氷表面から下方に向
けて一方向の凍結作用が行゛なわれ、水中の気体成分や
不純物を下方の水中に排出しながら氷結晶が生成されて
いく。According to the above-described structure, when a predetermined amount of water in the water tank is supplied into the ice tray via the water storage tray and the water supply pipe, the water is heated by the heat insulating effect of the heat insulating tank and the heating effect of the heater from the bottom. The cold air in the cooling chamber causes a unidirectional freezing effect from the ice surface downwards, and ice crystals are formed while gaseous components and impurities in the water are discharged into the water below.

次に水が適当な厚さになる時点で排水皿のヒータに通電
すると同時強制的に圧縮機と送風機を−定時間停止させ
る。この後排水皿を十分温度上昇させてから駆動装置を
作動させ、製氷皿を回動反転して離氷が行なわれ、水切
皿上に氷が落下して気体成分や不純物濃度が高くなった
未凍結水が分離、水切りされて下方の排水皿、排水管を
介して排水される。次に氷を乗せた水切皿が駆動装置に
よジ回動反転されると透明度及び純度の高い氷が貯氷箱
内に落下貯氷される為のである。Next, when the water reaches an appropriate thickness, electricity is applied to the drain tray heater, and at the same time, the compressor and blower are forcibly stopped for a certain period of time. After this, the temperature of the drain tray is raised sufficiently, the drive device is activated, and the ice making tray is rotated and reversed to remove the ice. The frozen water is separated, drained, and drained through the lower drain pan and drain pipe. Next, when the draining tray loaded with ice is rotated and reversed by the driving device, highly transparent and pure ice falls into the ice storage box and is stored.

実施例 以下、本発明の一実施例の冷蔵庫等の自動製氷装置につ
いて第１図から第６図に従い説明する。Embodiment Hereinafter, an automatic ice making apparatus such as a refrigerator according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6.

尚、従来と同一構成については同一符号を付し９、その
詳細な説明を省略する。Incidentally, the same components as those of the prior art are designated by the same reference numerals 9, and detailed explanation thereof will be omitted.

２４は内部に断熱材２５を収めた区画壁であり、上部に
冷凍室２６．下部に冷蔵室２７を区画形成している。２
８は前記区画壁２４上に配置した上面を開口された凹陥
形の断熱槽であり、樹脂製の外枠２９と凹陥部の底面に
配置した金属板３０（例えばアルミ板）及び前記外枠２
９．金属板３ｏに囲まｎた断熱材３１と、前記金属板３
０の裏面に熱伝導的に固定されたヒータ３２より構成さ
れている。３３は前記断熱槽２８の内面に重合するよう
外形を形成した製氷皿であり、小区画３４と、この小区
画３４を仕切る仕切枠３６及びこの仕切枠に形成して前
記小区画３４間を連通させる連通溝３６よＶ構成されて
いる。３７は前記製氷皿３３に並設した格子状の水切皿
であり、前記製氷皿３３の一端には第１の支持軸３８が
、又前記水切皿３７の一端には第２の支持軸３９が連結
固定されている。４０は前記第１の支持軸３８゜第２の
支持軸３９を回転させて前記製氷皿３３及び水切皿３７
を回動させる駆ｗＪ装置であり、内部にモータ、減速ギ
ヤ群等（図示せず）が内蔵されている。４１は前記駆動
装置４ｏに前記製氷皿３３及び水切皿３７を前記第１の
支持軸３８．第２の支持軸３９を介して軸支させるため
のフレームである。４２．４３は前記駆動装置４０の外
殻の一部に設けたストッパーであり、４４．４６は前記
製氷皿３３及び水切皿３７の反転時に、＠記ストッパー
４２．４３に当接するように前記製氷皿３３及び水切皿
３７上に夫々取付けた尚て板である。次に、４６は前記
水切皿３７の下方に設けた排水皿、４７はこの排水皿４
６に連結された排水管であり、夫々ヒータ４８．４９が
熱伝導的に配設されている。又、６ｏは前記水切皿３了
の反転姿勢時の下方で前記排水皿４６に隣接して設けた
貯氷箱である。更に、前記排水管４７は前記区画壁２４
の断熱材２６及び本体１の断熱材４内を貫通して本俸１
の底部に設けた機械室６１内に連通している。そして６
２は蒸発装置であり、冷凍サイクルの圧Ｗ３機６３から
配管された高温高圧の加熱管６４を密着させた加熱板６
６と、前記加熱板６６上に載置した蒸発皿６６より構成
されている。又、６７は前記排水管４７の高目に連結し
て前記蒸発皿６６の内部に水を導くための導水管である
〇 一方、６８は給水タンク１８より貯水皿２１内に一時貯
水された水を給水ポンプ２２で前記製氷皿３３に給水す
るための給水管であり、一端を前記給水ポンプ２２に連
結し他端を前記製氷皿３３の上面に臨むように開口され
ている。また、５９は前記冷凍室２６内にあって前記製
氷皿３３の上面に冷気を導くための通風路であり、６０
は前記冷凍室２６内の温度を検知して前記送風機９．圧
縮機６３の運転、停止を制御する温度制御装置である。24 is a partition wall containing a heat insulating material 25 inside, and a freezer compartment 26. A refrigerating chamber 27 is defined in the lower part. 2
Reference numeral 8 denotes a concave-shaped heat insulating tank with an open top surface, which is placed on the partition wall 24, and includes an outer frame 29 made of resin, a metal plate 30 (for example, an aluminum plate) placed on the bottom of the concave portion, and the outer frame 2.
9. A heat insulating material 31 surrounded by a metal plate 3o, and the metal plate 3
The heater 32 is thermally conductively fixed to the back surface of the 0. Reference numeral 33 denotes an ice tray whose outer shape is formed so as to overlap the inner surface of the heat insulating tank 28, and an ice tray 33 which has a small section 34, a partition frame 36 that partitions this small section 34, and an ice tray formed on this partition frame to communicate between the small sections 34. The communication groove 36 has a V configuration. Reference numeral 37 denotes a grid-like draining tray arranged in parallel with the ice making tray 33. A first support shaft 38 is attached to one end of the ice making tray 33, and a second supporting shaft 39 is attached to one end of the draining tray 37. Connection is fixed. 40 rotates the first support shaft 38 degrees and the second support shaft 39 to remove the ice making tray 33 and the draining tray 37.
This is a driving wj device that rotates the motor, and has a motor, reduction gear group, etc. (not shown) built inside. 41 connects the ice making tray 33 and the draining tray 37 to the first support shaft 38. to the driving device 4o. This is a frame for pivotal support via a second support shaft 39. 42.43 is a stopper provided on a part of the outer shell of the driving device 40, and 44.46 is a stopper provided in the ice making tray 33 and the draining tray 37 so as to come into contact with the stopper 42.43 when the ice making tray 33 and draining tray 37 are reversed. These are plates attached to the dish 33 and the draining dish 37, respectively. Next, 46 is a drain plate provided below the drain plate 37, and 47 is this drain plate 4.
6, and heaters 48 and 49 are respectively disposed for thermal conduction. Further, 6o is an ice storage box provided adjacent to the drain tray 46 below the drain tray 3 when it is in an inverted position. Furthermore, the drain pipe 47 is connected to the partition wall 24.
The main body 1 penetrates through the heat insulating material 26 of the main body 1 and the insulating material 4 of the main body 1.
It communicates with a machine room 61 provided at the bottom of the machine. and 6
2 is an evaporator, which includes a heating plate 6 to which a high-temperature, high-pressure heating tube 64 connected from the pressure W3 machine 63 of the refrigeration cycle is closely attached.
6, and an evaporating dish 66 placed on the heating plate 66. Further, 67 is a water conduit pipe connected to the high end of the drain pipe 47 to guide water into the evaporation tray 66. On the other hand, 68 is water temporarily stored in the water storage tray 21 from the water supply tank 18. This is a water supply pipe for supplying water to the ice tray 33 by the water supply pump 22, and has one end connected to the water supply pump 22 and the other end opened so as to face the top surface of the ice tray 33. Further, 59 is a ventilation passage located in the freezer compartment 26 for guiding cold air to the upper surface of the ice tray 33;
detects the temperature inside the freezer compartment 26 and operates the blower 9. This is a temperature control device that controls operation and stop of the compressor 63.

かかる構成において、使用者によって水を満たされた給
水タンク１８が所定の位置にセットされると、弁２ｏが
押し上げられて給水口１９が開口して貯水皿２１内に水
が満たされる。その後、満たされた水は給水ポンプ２２
によって揚水され、給水管５８を介して製氷皿３３に給
水が始めらｆる。製氷皿３３の小区画３４のうち一箇所
に給水されると連通溝３６を通じて他の小区画３４内に
所定量給水される（所定量の注水は例えば給水ポンプ２
２のモータの作動時間の規定等の手段によって行なわれ
る）。この状態を第３図に示すが、この時水切皿３７は
排水皿４６から離れた反転姿勢にある。In this configuration, when the water supply tank 18 filled with water is set at a predetermined position by the user, the valve 2o is pushed up, the water supply port 19 is opened, and the water storage tray 21 is filled with water. After that, the filled water is transferred to the water supply pump 22
The water is pumped up and water starts being supplied to the ice tray 33 via the water supply pipe 58. When water is supplied to one of the small sections 34 of the ice tray 33, a predetermined amount of water is supplied into the other small sections 34 through the communication groove 36.
2). This state is shown in FIG. 3, where the draining tray 37 is in an inverted position away from the draining tray 46.

この状態において送風＠９によって冷却器８で冷却され
た冷気が通風路６９を介して製氷皿３３の氷衣面上に強
制通風されて冷却作用が開始さｆる。これと同時に断熱
槽２８内の底面に配設されたヒータ３２の加熱作用が開
始され底面の金属板３０が加熱される。又、製氷皿３３
の外周は断熱槽２８内の断熱材３１で囲われているため
外周からの冷却作用も抑えられ、凍結作用は製氷皿３３
の上方から下方へ向けての一方向に進行していく。In this state, the cold air cooled by the cooler 8 is forced through the ventilation path 69 onto the ice coating surface of the ice making tray 33 by the air blower @9, and the cooling action is started. At the same time, the heating action of the heater 32 disposed on the bottom of the heat insulating tank 28 is started, and the metal plate 30 on the bottom is heated. Also, ice tray 33
Since the outer periphery of the ice tray 33 is surrounded by a heat insulating material 31 in the heat insulating tank 28, the cooling effect from the outer periphery is also suppressed, and the freezing effect is suppressed by the ice tray 33.
It progresses in one direction from above to below.

このため凍結速度を適度に遅くしてやれば（例えば６闘
／ｈ程度）氷の生成進行とともに水中に溶解していた気
体成分や、含有される各種不純物を氷結晶外に析出して
下方の未凍結水中に排圧していく。こうして時間経過に
よって順次生成さｎていく氷は透明度が非常に高く、不
純物の少ない純度の高い氷となる。そして、予め定めた
冷却時間の経過によって、必要とする適当な厚み（例え
ば２６ｆｌ）の氷が生成される。即ち状態光で示せば第
４図のように製氷皿３３の各小区画３４内の上部に透明
度及び純度の高い氷が、そして、その下部には純度の低
下した未凍結水が共存した状態となっている。For this reason, if the freezing rate is slowed down to an appropriate level (for example, about 6 fights/h), gas components dissolved in the water and various impurities contained in the water will be precipitated outside the ice crystals as ice forms, and the unfrozen water below will be deposited. Pressure is released into the water. In this way, the ice that is successively produced over time has very high transparency and becomes highly pure ice with few impurities. Then, as a predetermined cooling time elapses, ice of a required appropriate thickness (for example, 26 fl) is generated. In other words, as shown in FIG. 4, the state light shows a state in which highly transparent and pure ice coexists in the upper part of each small section 34 of the ice tray 33, and unfrozen water with reduced purity coexists in the lower part. It has become.

次に氷が適当な厚さになる時ぐ、で排水皿４６のヒータ
４８に通電すると同時に強制的に圧縮機６３と送風機９
を一定時間停止させる。この後排水皿４６を十分温度上
昇させてから駆動装置４０が作動して第１の支持軸３８
、第２の支持軸３９が回転を始めて、先ず水切皿３了が
反転して排水皿４６の上方にセットされ、続いて製氷皿
３３が回動して断熱槽２８から離脱し、先にセットされ
た水切皿３７の上方に重なり合う様に近接した位置まで
反転する。これと同時に断熱槽２８内のヒータ３２の加
熱作用は停止する。そして、製氷皿３３に固定した当て
板４４が駆動装置４ｏに設けたストッパー４２に当接し
、その壕ま更に駆動装置４０が製氷皿３３に回動力を与
えることによって製氷皿３３は歪み変形し、各小区画３
４内の氷は離氷されて下方にセットされた格子状の水切
皿３７上に落下する。これと同時に各小区画３４内に残
されていた気体成分や不純物濃度の高まった未凍結水も
流出落下するが、水切皿３７は格子状に形成されて貫通
孔が大部分を占めているために、水切皿３７上には溜ま
らずにそのまま排水皿４６内に落下し氷と水が分離され
る。即ち水切皿３７上には透明度及び純度の高い氷のみ
が残さｎる。この状態を第６図に示す。Next, when the ice reaches an appropriate thickness, the heater 48 of the drain tray 46 is energized and at the same time the compressor 63 and blower 9 are forcibly turned on.
is stopped for a certain period of time. After this, the temperature of the drain tray 46 is raised sufficiently, and then the drive device 40 is activated to move the first support shaft 38
, the second support shaft 39 starts rotating, and the draining tray 39 is first reversed and set above the draining tray 46, then the ice tray 33 is rotated and removed from the insulation tank 28, and is set first. It is inverted to a position close to the draining plate 37 so as to overlap above it. At the same time, the heating action of the heater 32 in the heat insulating tank 28 stops. Then, the backing plate 44 fixed to the ice tray 33 comes into contact with the stopper 42 provided on the drive device 4o, and the drive device 40 applies rotational force to the ice tray 33 through the trench, thereby distorting and deforming the ice tray 33. Each small plot 3
The ice in the container 4 is released and falls onto a grid-shaped draining tray 37 set below. At the same time, unfrozen water with increased concentration of gaseous components and impurities remaining in each subdivision 34 also flows out and falls, but since the draining tray 37 is formed in a lattice shape and most of the through holes are occupied, Then, the ice does not accumulate on the draining tray 37, but instead falls into the draining tray 46, where the ice and water are separated. That is, only highly transparent and pure ice remains on the draining tray 37. This state is shown in FIG.

このように離氷を行なう前に一定時間排水皿４６のヒー
タ４８に通電すると同時に強制的に圧縮機５３と送風機
９を停止させることにより、排水皿４６の十分な温度上
昇を図り排水皿を凍結防止することができる。In this way, before ice removal, the heater 48 of the drain tray 46 is energized for a certain period of time, and at the same time, the compressor 53 and the blower 9 are forcibly stopped, thereby raising the temperature of the drain tray 46 sufficiently and freezing the drain tray. It can be prevented.

一方、排水皿４６内に落下した未凍結水は排水管４７を
介して導水管６７よυ機械室６１内の蒸発装置６２の蒸
発皿６６内に排水さｆる。その後、蒸発皿６６内に排水
された水は圧縮機６３からの高温の高圧冷媒ガスが流れ
る加熱管６４と密着させた加熱板６６の加熱作用によっ
て蒸発される。On the other hand, the unfrozen water that has fallen into the drain tray 46 is drained through the drain pipe 47 into the water guide pipe 67 and into the evaporator tray 66 of the evaporator 62 in the machine room 61. Thereafter, the water drained into the evaporating dish 66 is evaporated by the heating action of the heating plate 66 that is brought into close contact with the heating tube 64 through which the high-temperature, high-pressure refrigerant gas from the compressor 63 flows.

尚、排水皿４６．排水管４７での流水結氷を防止するた
めにヒータ４８，４９により適宜加熱作用が行なわれる
。In addition, the drain plate 46. In order to prevent the flowing water from freezing in the drain pipe 47, heaters 48 and 49 appropriately heat the drain pipe 47.

一方、こうして残された氷は表面の一部に水分の付着し
た氷であるために適当な時間そのままの状態で冷却乾燥
される。その後、第６図に示す様に駆動装置４０が再び
作動して第１の支持軸３８゜第２の支持軸３９が回転し
、先ず製氷皿３３が回動して断熱槽２８内に眼納セット
され、一方で水切皿３７が排水皿４６の上部から反転し
て貯氷箱５０の上方で水切皿３７に固定された当て板４
６が駆動装置４ｏに設けたストッパー４３に当接する。On the other hand, since the ice thus left has moisture attached to a portion of its surface, it is cooled and dried as it is for a suitable period of time. Thereafter, as shown in FIG. 6, the drive device 40 operates again to rotate the first support shaft 38 degrees and the second support shaft 39, and first the ice tray 33 rotates and is placed in the heat insulating tank 28. On the other hand, the draining tray 37 is turned over from the top of the draining tray 46 and the backing plate 4 is fixed to the draining tray 37 above the ice storage box 50.
6 comes into contact with a stopper 43 provided on the drive device 4o.

そして、そのまま更に駆動装置４０が水切皿３７に回動
力を与えることによって水切皿３７は歪み変形し、水切
皿３７上に載置された氷は離氷されて下方に備えられた
貯氷箱６０内に落下し貯氷される。この状態を第６図に
示す。Then, as the drive device 40 further applies rotational force to the draining tray 37, the draining tray 37 is distorted and deformed, and the ice placed on the draining tray 37 is released and placed in the ice storage box 60 provided below. falls and is stored as ice. This state is shown in FIG.

こうして、給水タンク１８が使用者によってセットされ
た以後は、給水タンク１８内の水を使い切るまでこれら
一連の行程を自動的に繰り返す。In this way, after the water supply tank 18 is set by the user, these series of steps are automatically repeated until the water in the water supply tank 18 is used up.

その結果、貯氷箱６０内には透明度が高く、しかも純度
が高い氷のみが多量に貯氷されることになり、使用者は
ほとんど手金煩わせずに飲食用として極めて官能的に優
れた氷を随時十分に使用することが出来る。As a result, a large amount of highly transparent and highly pure ice is stored in the ice storage box 60, allowing the user to enjoy highly sensually superior ice for eating and drinking without having to spend much money. It can be used at any time.

発明の効果 以上の様に本発明によると、氷の生成進行によって排出
さｆた気体成分や不純物を含んだ未凍結水を分離してし
１うことにより、貯氷箱内には透明度及び純度の高い氷
が自動的に多量に貯氷されていくため使用者は、飲食用
として極めて官能的に優れた氷全随時十分に使用するこ
とが出来る。Effects of the Invention As described above, according to the present invention, by separating unfrozen water containing gaseous components and impurities discharged as ice is formed, the ice storage box maintains transparency and purity. Since a large amount of high-quality ice is automatically stored, the user can use the ice, which is very sensually excellent for eating and drinking, at any time.

また離氷を行なう前に一定時間排水皿４６のヒータ４８
に通電すると同時に強制的に圧縮機と送風機を停止させ
ることにより、排水皿の十分な温度上昇を因り排水皿を
凍結を防止することができる０In addition, the heater 48 of the drain tray 46 is turned on for a certain period of time before the ice is removed.
By forcibly stopping the compressor and blower at the same time as the power is turned on, the temperature of the drain pan can be raised sufficiently to prevent the drain pan from freezing.

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

第１図は本発明の一実施例を示す冷蔵庫等の自動製氷装
置の要部拡大斜視図、第２図は同第１図の自動製氷装置
を備えた冷蔵庫の縦断面図、第３図は同第１図の自動製
氷装置に給水された状態を示す断面−図、第４図は同第
３図の状態より製氷が進行した状態を示す断面図、第５
図は同第４図の状態より離氷、水分離した状態を示す断
面図、第６図は第６図の状態より貯氷箱内に離氷する動
作を示す断面図、第７図は従来例を示す自動製氷装置を
備えた冷蔵庫の縦断面図、第８図は同第７図の自動製氷
装置の要部拡大斜視図である。 １８・・・・・・給水タンク、２１・・・・・・貯水皿
、２２・・・・・・給水ポンプ、２６・・・・・・冷凍
室（冷却室）、２８・・・・・・ｖｆｒ熱槽、３２・・
・・・・ヒータ、３３・・・・・・製氷皿、３７・・・
・・・水切皿、３８・・・・・・第１の支持軸、３９・
・・・・第２の支持軸、４０・・・・・・駆動装置、４
６・・・・・・排水皿、４７・・・・・・排水管、５０
・・・・・・貯氷箱、５８・・・・・・給水管。 代理人の氏名　弁理士　粟　野　重　孝　ほか１名断　
−惟 ヒータ 製氷皿 水切皿 凛１の支持軸 稟２の支持軸 ｈｏｗ 傅＊皿 １１卜木管 貯氷箱 １８−−一　繁ｉ　フＫ　　タ　　ン　　り２！−−−
ｆｆ　水　皿 ２２−　　絽水ごりプ ２Ａ−；ｆ　Ｉ　１１　（；？　ｆｆ１ｐｉ！　）お−
＃＃槽 、？２−−−ヒータ Ω−製京ｍ 舅−マ１のＳ書軸 ４０＃動に置 ４７−８Ｐボ管 閏−籍水曹 め　− 褐 葡が　１ 仁−夕 製氷皿 ボｔ７１Ｉｍ 算１　の支持軸 ’＄２の支持軸 Ｎｌ力　装　置 俳水血 ）静水！ 貯氷箱 験　Ｐ！！Ｉ 仁−夕 へ’ｙ皿 ２Ｋｔ７］皿 ＊＋　の支持軸 箋２の支持軸 励動装置 僻木皿 鈎ト水管 貯プ）（＠ Ｗｈ　　詐 ロ　− 製　水 Ｋｔ７１ 第　１ 第　２ 期動 排水 排水 貯水 絶水FIG. 1 is an enlarged perspective view of essential parts of an automatic ice-making device such as a refrigerator showing an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of a refrigerator equipped with the automatic ice-making device shown in FIG. 1, and FIG. Figure 1 is a cross-sectional view showing a state where water is supplied to the automatic ice making device, Figure 4 is a cross-sectional view showing a state in which ice making has progressed from the state shown in Figure 3, and Figure 5
The figure is a sectional view showing a state in which ice is removed and water is separated from the state shown in Fig. 4, Fig. 6 is a sectional view showing the operation of releasing ice into the ice storage box from the state shown in Fig. 6, and Fig. 7 is a conventional example. FIG. 8 is an enlarged perspective view of a main part of the automatic ice making device shown in FIG. 7. 18... Water supply tank, 21... Water storage tray, 22... Water supply pump, 26... Freezer room (cooling room), 28...・VFR heat tank, 32...
... Heater, 33 ... Ice tray, 37 ...
...Draining plate, 38...First support shaft, 39.
...Second support shaft, 40...Drive device, 4
6... Drain pan, 47... Drain pipe, 50
...Ice storage box, 58...Water pipe. Name of agent: Patent attorney Shigetaka Awano and one other person
-Support shaft of support shaft 2 for ice heater ice tray draining tray Rin 1 how 傅*Plate 11 Wood pipe ice storage box 18--1 2! ---
ff water dish 22- gullet water bowl 2A-;f I 11 (;? ff1pi!)o-
## Tank,? 2---Heater Ω-Seikyo m Mother-in-arms 1's S book shaft 40# placed on the 47-8P pipe jumper-register water holder-brown grapes 1 Jin-Yu ice tray bottle t71Im calculation 1 support Axis ' $ 2 support axis Nl force device Haisui blood) still water! Ice box experience P! ! I Ren-Yu e'y plate 2Kt7] Plate*+ Support shaft excitation device of support shaft plate 2 Wood plate hook water pipe storage) absolute water

Claims (1)

【特許請求の範囲】[Claims] 冷却室の一画に備えた上面を開口された断熱槽と、前記
断熱槽の内面底部を中心に配設したヒータと、前記断熱
槽の開口部より内面に重合する製氷皿と、前記製氷皿の
一端に連結固定した第１の支持軸と、前記製氷皿と並設
した水切皿と、前記水切皿の一端に連結固定した第２の
支持軸と、前記第１の支持軸を軸として前記製氷皿を回
動させる駆動装置と、前記水切皿の下方に設けた排水皿
と、前記排水皿の下方に設けたヒータと、前記ヒータ通
電中は圧縮機と送風機を強制的に停止させる制御装置と
、前記排水皿に連結した排水管と、前記排水皿に隣接し
て設けた貯氷箱と、前記冷却室外に備えた給水タンクと
、前記給水タンクからの水を貯水する貯水皿と、前記貯
水皿内の水を揚水する給水ポンプと、前記製氷皿上面ま
で導いた給水管とより成る自動製氷装置。a heat insulating tank with an open top surface provided in one section of the cooling chamber; a heater disposed around the bottom of the inner surface of the heat insulating tank; an ice tray that overlaps the inner surface from the opening of the heat insulating tank; and the ice tray. a first support shaft connected and fixed to one end; a draining tray installed in parallel with the ice tray; a second support shaft connected and fixed to one end of the draining tray; A drive device that rotates an ice tray, a drain tray provided below the drain tray, a heater provided below the drain tray, and a control device that forcibly stops a compressor and a blower while the heater is energized. a drain pipe connected to the drain tray, an ice storage box provided adjacent to the drain tray, a water tank provided outside the cooling chamber, a water storage tray for storing water from the water tank, and the water storage An automatic ice making device comprising a water supply pump that pumps up water in the tray, and a water supply pipe that leads to the top surface of the ice tray.