JP4762710B2 - Ice making container and ice making device - Google Patents

Ice making container and ice making device Download PDF

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JP4762710B2
JP4762710B2 JP2005375629A JP2005375629A JP4762710B2 JP 4762710 B2 JP4762710 B2 JP 4762710B2 JP 2005375629 A JP2005375629 A JP 2005375629A JP 2005375629 A JP2005375629 A JP 2005375629A JP 4762710 B2 JP4762710 B2 JP 4762710B2
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container
ice making
water
ice
inner container
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JP2007178041A (en
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章司 西垣
正義 吉田
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Sharp Corp
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本発明は、蓄冷剤を備えた製氷用の製氷容器及びそれを用いた製氷装置に関する。 The present invention relates to ice making apparatus using ice tray and that for ice having a 蓄 cooling agent.

従来の製氷容器は特許文献１、２に開示されている。この製氷容器は製氷用の水を 溜める内容器の外側を外容器で覆い、内容器と外容器との間に蓄冷剤が封入されてい る。これらの製氷容器は蓄冷剤によって熱容量が増加し、蓄冷剤に蓄えられた冷熱に より水が冷却されるため製氷時間を短縮することができる。
実開昭６０−２５８７６号公報（第３図） 実開昭６１−７１８７６号公報（第２図） Conventional ice making containers are disclosed in Patent Documents 1 and 2. The ice tray covers the outer of the inner container for storing water for ice making in the outer container, 蓄 cooling agent between the inner and outer containers is that is sealed. These ice tray increases heat capacity by 蓄 cooling agent, it is possible to shorten the ice making time for more water is cooled in the cold stored in 蓄 cold agent.
Japanese Utility Model Publication No. 60-25876 (Fig. 3) Japanese Utility Model Publication No. 61-71876 (FIG. 2)

しかしながら、上記従来の製氷容器によると、内容器に接する水は蓄冷剤の冷熱を 受け取ることができるが、製氷容器内の水の水面は蓄冷剤の冷熱を充分受け取ること ができない。このため、以前として製氷時間がかかる問題があった。 However, according to the conventional ice tray, water in contact with the inner container can receive the cold of the 蓄 cooling agents, water of water ice in the container can not receive sufficient cooling energy of 蓄 cold agent. For this reason, there has been a problem that it takes time to make ice as before.

本発明は、迅速な製氷を行うことのできる製氷容器及び製氷装置を提供することを 目的とする。       An object of the present invention is to provide an ice making container and an ice making device that can perform quick ice making.

上記目的を達成するために本発明の製氷容器は、製氷用の水を溜める内容器と、前 記内容器の外側を覆う外容器と、前記内容器と前記外容器との間に封入される蓄冷剤 とを備え、前記内容器の内面に前記蓄冷剤の高さよりも低い視認可能な水平線を形成 したことを特徴としている。 In order to achieve the above object, an ice making container of the present invention is enclosed between an inner container for storing ice making water, an outer container covering the outside of the inner container, and the inner container and the outer container. a 蓄 cooling agent, it is characterized by the formation of the lower visible horizon than the height of the 蓄 cold agent on the inner surface of the inner container.

この構成によると、使用者は水平線を視認しながら注水し、水平線まで注水すると 注水を停止する。製氷容器は氷点以下に維持される庫内に配され、庫内の冷気及び蓄 冷剤から放出される冷熱による冷却によって製氷が行われる。この時、水平線よりも 上方の蓄冷剤から水面に冷熱が供給される。 According to this configuration, the user pours water while visually recognizing the horizon, and stops pouring when water is poured up to the horizon. The ice making container is placed in a warehouse that is maintained below the freezing point, and ice making is performed by cooling with cold air in the warehouse and cold heat released from the cold storage agent. At this time, cold heat is supplied from above the 蓄 cold agent on the surface of the water than the horizon.

また本発明は、上記構成の製氷容器において、前記内容器の内面に設けた段差によ り前記水平線を形成したことを特徴としている。       According to the present invention, in the ice making container having the above-described configuration, the horizontal line is formed by a step provided on an inner surface of the inner container.

また本発明は、上記構成の製氷容器において、前記蓄冷剤の高さよりも前記水平線 を５ｍｍ以上低くしたことを特徴としている。 According to the present invention, in the ice tray of the above-described configuration, than the height of the 蓄 cold agent is characterized in that lower or higher 5mm the horizon.

また本発明の製氷装置は、水を溜める内容器と前記内容器の外側を覆う外容器との 間に蓄冷剤を封入した製氷容器と、前記製氷容器に給水する給水手段とを備え、前記 蓄冷剤の高さよりも低い水位で給水を停止することを特徴としている。 The ice making apparatus of the present invention comprises a ice tray encapsulating 蓄 cooling agent between the outer container covering the outside of the inner container and the inner container for storing water, and a water supply means for supplying water to the ice tray, wherein It is characterized by stopping the water supply at a lower level than the height of the 蓄 cold agent.

この構成によると、氷点以下に維持される庫内に配された製氷容器に給水手段によ り給水される。蓄冷剤の高さよりも低い所定の水位に到達すると給水が停止される。 製氷容器内の水は庫内の冷気及び蓄冷剤から放出される冷熱により冷却され、製氷が 行われる。この時、水面よりも上方の蓄冷剤から水面に冷熱が供給される。 According to this configuration, water is supplied by the water supply means to the ice making container placed in the warehouse maintained below the freezing point. Water is stopped and reaches a predetermined level lower than the height of the 蓄 cold agent. Water ice in the container is cooled by cold released from the cold air and 蓄 cold agent in the refrigerator, the ice making is performed. At this time, cold heat is supplied from above the 蓄 cold agent on the surface of the water the water surface.

また本発明は、上記構成の製氷装置において、前記蓄冷剤の高さよりも５ｍｍ以上 低い水位で給水を停止することを特徴としている。 According to the present invention, in the ice making device having the above structure is characterized by stopping the water supply at the height 5mm or less water than the 蓄 cold agent.

本発明によると、蓄冷剤の高さよりも低い視認可能な水平線を内容器の内面に設け たので、使用者は水平線まで注水して容易に注水を停止することができる。これによ り、水面よりも上方に蓄冷剤が配され、この部分の蓄冷剤の冷熱によって内容器内の 水の水面が冷却される。従って、製氷時間を短縮することができる。 According to the present invention, since there is provided a low visible horizon than the height of 蓄 cold agent on the inner surface of the inner container, the user can stop the easily water injection by water injection to the horizon. This ensures that the water surface 蓄 cooling agent is arranged above, the water surface of the water in the inner container by the cold of the 蓄 cold agent of this portion is cooled. Therefore, the ice making time can be shortened.

また本発明によると、内容器の内面に設けた段差により水平線を容易に形成するこ とができる。       According to the present invention, the horizontal line can be easily formed by the step provided on the inner surface of the inner container.

また本発明によると、蓄冷剤の高さよりも水平線を５ｍｍ以上低くしたので、蓄冷 剤の冷熱を水面に確実に供給することができる。 Moreover, according to the present invention, since the lower than 5mm horizontal lines than the height of the 蓄 cooling agent, it is possible to reliably supply the cold heat 蓄 cold agent on the surface of the water.

また本発明によると、製氷容器に給水する給水手段による給水を蓄冷剤の高さより も低い水位で停止するので、水面よりも上方に蓄冷剤が配され、この部分の蓄冷剤の 冷熱によって内容器内の水の水面が冷却される。従って、製氷時間を短縮することが できる。 Moreover, according to the present invention, since the water supply by water supply means for supplying water to the ice tray stops at a lower level than the height of the 蓄 cooling agents, water 蓄 cooling agent is disposed above the cold heat of 蓄 cold agent of this part As a result, the water level in the inner container is cooled. Therefore, the ice making time can be shortened.

また本発明によると、蓄冷剤の高さよりも５ｍｍ以上低い水位で給水を停止するの で、蓄冷剤の冷熱を水面に確実に供給することができる。 Moreover, according to the present invention, of stopping the water supply at a lower level than 5mm than the height of 蓄 cooling agent, it is possible to reliably supply the cold heat 蓄 cold agent on the surface of the water.

以下に本発明の実施形態を図面を参照して説明する。図１は第１実施形態の製氷容 器を示す斜視図である。製氷容器１は冷蔵庫の冷凍室や製氷室等の庫内に配され、氷 点以下に維持される。製氷容器１は製氷用の水が供給される内容器２の外側が外容器 ３で覆われている。内容器２には仕切り部２ａが格子状に設けられ、仕切り部２ａに より仕切られた凹部２ｂにブロック状の氷が形成される。       Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the ice making container of the first embodiment. The ice making container 1 is placed in a refrigerator such as a refrigerator freezer or an ice making room and is maintained below the freezing point. The ice making container 1 is covered with an outer container 3 on the outside of an inner container 2 to which ice making water is supplied. The inner container 2 is provided with partition portions 2a in a lattice shape, and block-shaped ice is formed in the concave portions 2b partitioned by the partition portions 2a.

図２は図１のＡ−Ａ断面図を示している。内容器２と外容器３との間には蓄冷剤４ が封入されている。蓄冷剤４は吸水性の高分子ポリマー等から成り、融点が−２０℃ 以上になっている。製氷容器１が配される冷凍庫や製氷室は一般に約−２０℃に維持 されるため、蓄冷剤４は製氷時に凍結する。 FIG. 2 shows a cross-sectional view taken along the line AA of FIG. 蓄 cooling agent 4 is sealed between the inner container 2 and outer container 3. 蓄 cooling agent 4 consists absorbent polymeric polymers such as melting point is greater than or equal to -20 ° C.. Since the ice tray 1 is generally maintained at about -20 ° C. freezers and ice compartment which is arranged, 蓄 cold agent 4 is frozen during the ice making.

内容器２は金属のプレス成形品や樹脂成形品から成り、内容器２の内面には水平な 段差２ｃが設けられる。段差２ｃの稜線によって視認可能な水平線５（図１参照）が 形成される。水平線５は蓄冷剤４の高さよりも低い位置に設けられ、使用者に対して 注水する水位を知らせる。 The inner container 2 is made of a metal press-molded product or a resin molded product, and a horizontal step 2 c is provided on the inner surface of the inner container 2. A visible horizontal line 5 (see FIG. 1) is formed by the ridge line of the step 2c. Horizontal line 5 is provided at a position lower than the height of the 蓄 cooling agent 4, notify the water level of water injection to the user.

外容器３は内容器２よりも厚みの薄い金属のプレス成形品、樹脂成形品あるいは樹 脂フィルムにより形成されている。これにより、外容器３の剛性よりも内容器２の剛 性が大きくなっている。また、外容器の底面の周部には突起部３ａが設けられる。       The outer container 3 is formed of a metal press-molded product, a resin molded product, or a resin film that is thinner than the inner container 2. As a result, the rigidity of the inner container 2 is greater than the rigidity of the outer container 3. Further, a protrusion 3a is provided on the peripheral portion of the bottom surface of the outer container.

製氷容器１内には使用者によって水平線５まで注水される。氷点以下に維持される 庫内に配された製氷容器１は、庫内の冷気及び蓄冷剤４から放出される冷熱による冷 却によって製氷が行われる。内容器２に接する水は水平線５よりも下方の蓄冷剤４か ら冷熱を受け取り、内容器２の水面は水平線５よりも上方の蓄冷剤４から冷熱を受け 取る。これにより、水の全体に蓄冷剤４の冷熱が行き渡り、迅速に製氷することがで きる。 Water is poured into the ice making container 1 up to the horizontal line 5 by the user. Ice tray 1 disposed within compartment maintained below the freezing point, ice is carried out by cooling by cold released from the cold air and 蓄 cold agent 4 in the refrigerator. Water in contact with the container 2 receives 蓄 cooling agent 4 or al cold below the horizontal line 5, water of the inner container 2 takes receives cold heat from above the 蓄 cold agent 4 the horizontal line 5. Thus, the overall water cold heat 蓄 cold agent 4 spreads, as possible out to rapidly ice.

また、蓄冷剤４は製氷後離氷した際に凍結した状態を維持し、次に内容器２に給水 した際に融解する。これにより、内容器２に接する水は水面よりも下方の蓄冷剤４に 融解熱を奪われて冷熱を受け取り、内容器２の水面は水面よりも上方の蓄冷剤４に融 解熱を奪われて冷熱を受け取る。従って、より迅速に製氷することができる。 Further, 蓄 cold agent 4 will remain frozen upon ice removing after ice, then melted upon water into container 2. Thus, the water in contact with the container 2 receives cold by heat of melting to 蓄 cold agent 4 below the water surface, the water surface of the inner container 2 a fusion antipyretic above the 蓄 cold agent 4 the water surface deprives I receive cold energy. Therefore, ice can be made more quickly.

尚、蓄冷剤４が凍結すると一点鎖線Ｄ（図２参照）に示すように剛性の低い外容器 ３が外側に向けて膨張し、剛性の高い内容器２の変形が防止される。これにより、氷 の割れや内容器２の仕切り部２ａの破損を防止することができる。また、蓄冷剤４の 凍結により外容器３が膨張しても突起部３ａにより製氷容器１を安定して設置するこ とができる。 Note that lower outer container 3 rigid as 蓄 cooling agent 4 shown in a chain line D and freeze (see FIG. 2) expands outwardly, the deformation of the higher container 2 having rigidity is prevented. Thereby, it is possible to prevent cracking of ice and damage to the partition part 2a of the inner container 2. In addition, it is a child stably installed ice tray 1 by the projection portion 3a even when the outer container 3 expands due to frozen 蓄 cold agent 4.

本実施形態によると、蓄冷剤４の高さよりも低い視認可能な水平線５を内容器２の 内面に設けたので、使用者は水平線５まで注水して容易に注水を停止することができ る。このため、水面よりも上方に蓄冷剤４が配され、この部分の蓄冷剤４の冷熱によ って内容器２内の水の水面が冷却される。従って、製氷時間を短縮することができる 。 According to this embodiment, since there is provided a horizontal line 5 visible lower than the height of the 蓄 cold agent 4 on the inner surface of the inner container 2, the user Ru can stop easily water injection by water injection to the horizon 5 . Therefore, the water surface 蓄 cooling agent 4 is arranged above, the water surface of the water in the container 2 I by the cold heat of the 蓄 cold agent 4 of this portion is cooled. Therefore, the ice making time can be shortened.

尚、蓄冷剤４の高さよりも水平線５を５ｍｍ以上低くすると、上部の蓄冷剤４の冷 熱を確実に水面に供給することができる。水平線５を突起や凹部により形成してもよ く、印刷してもよい。また、水平線５を点線に視認されるように形成してもよい。 Incidentally, lowering 5mm or more horizontal line 5 than the height of 蓄 cooling agent 4 can be supplied to the water surface to ensure the cold heat of the upper part of 蓄 cold agent 4. The horizontal line 5 may be formed by protrusions or recesses, or may be printed. Moreover, you may form so that the horizontal line 5 may be visually recognized by a dotted line.

次に、図３は第２実施形態の製氷装置を備えた冷蔵庫を示す側面図である。本実施 形態の製氷装置１０は第１実施形態と同様の製氷容器１を備えている。冷蔵庫は上方 から順に冷蔵室３２、野菜室３３、冷凍室３４が設けられている。冷蔵室３２には製 氷用の水を溜める給水タンク１５が配置され、冷凍室３４には製氷容器１を有して氷 を製氷する製氷部２０が配置されている。       Next, FIG. 3 is a side view showing a refrigerator provided with the ice making device of the second embodiment. The ice making device 10 of the present embodiment includes an ice making container 1 similar to that of the first embodiment. The refrigerator is provided with a refrigerator compartment 32, a vegetable compartment 33, and a freezer compartment 34 in order from the top. A water supply tank 15 for storing ice making water is disposed in the refrigerator compartment 32, and an ice making section 20 that has the ice making container 1 and makes ice is disposed in the freezer compartment 34.

給水タンク１５の上方には給水ポンプ１１が配される。給水ポンプ１１には導水管 １２、１３が導出されている。一方の導水管１２は給水タンク１５内に延出され、他 方の導水管１３の端部は製氷容器１の上方に配置される。給水タンク１５、給水ポン プ１１及び導水管１２、１３によって製氷容器１に給水する給水手段が構成されてい る。導水管１３にはヒータ１６が取り付けられている。これにより、導水管１３を流 通する水の凍結が防止される。       A water supply pump 11 is disposed above the water supply tank 15. Water guide pipes 12 and 13 are led out to the water supply pump 11. One water conduit 12 is extended into the water supply tank 15, and the end of the other water conduit 13 is disposed above the ice making container 1. The water supply tank 15, the water supply pump 11, and the water guide pipes 12 and 13 constitute water supply means for supplying water to the ice making container 1. A heater 16 is attached to the water conduit 13. Thereby, freezing of the water flowing through the water conduit 13 is prevented.

製氷部２０には製氷容器１に連結される製氷モータ２２が設けられる。製氷モータ ２２により製氷容器１が矢印Ａに示すように回転駆動される。製氷容器１の下方には 製氷容器１に近接する離氷部材２３が設けられている。離氷部材２３の下方には氷を 貯蔵する貯氷容器２４が設けられている。       The ice making unit 20 is provided with an ice making motor 22 connected to the ice making container 1. The ice making container 1 is driven to rotate as indicated by an arrow A by the ice making motor 22. Below the ice making container 1, an ice removing member 23 close to the ice making container 1 is provided. An ice storage container 24 for storing ice is provided below the icing member 23.

給水ポンプ１１を駆動すると製氷容器１には給水タンク１５から給水される。この 時、蓄冷剤４の高さよりも低い所定の水位まで給水されると給水ポンプ１１が停止し 、給水が停止される。製氷容器１の水位を検知する水位センサを設けて給水停止して もよく、給水ポンプ１１の汲み出し量や汲み出し時間を検知して給水停止してもよい 。尚、製氷容器１に水平線５（図１参照）を設けていなくてもよい。 When the water supply pump 11 is driven, the ice making container 1 is supplied with water from the water supply tank 15. At this time, up to a predetermined level lower than the height of the 蓄 cold agent 4 water supply pump 11 is stopped and water is supplied, the water supply is stopped. The water supply may be stopped by providing a water level sensor that detects the water level of the ice making container 1, or the water supply may be stopped by detecting the pumping amount and pumping time of the water pump 11. The ice making container 1 may not be provided with the horizontal line 5 (see FIG. 1).

製氷容器１内の水は冷凍室３４内の冷気及び蓄冷剤４（図２参照）から放出される 冷熱により冷却され、製氷が行われる。内容器２に接する水は水面よりも下方の蓄冷 剤４から冷熱を受け取り、内容器２の水面は水面よりも上方の蓄冷剤４から冷熱を受 け取る。これにより、水の全体に蓄冷剤４の冷熱が行き渡り、迅速に製氷することが できる。 Water ice container 1 is cooled by cold released from the cold air and 蓄 cold agents of the freezing chamber 34 4 (see FIG. 2), ice is made. Water in contact with the container 2 receives cold heat from 蓄 cooling agent 4 below the water surface, water surface of the inner container 2 takes accept cold heat from above the 蓄 cold agent 4 the water surface. Thereby, the cold energy of the cool storage agent 4 spreads over the whole water, and ice can be made quickly.

所定時間が経過すると製氷モータ２２の駆動により製氷容器１は矢印Ａに示すように 回転して離氷部材２３に当接する。この時の衝撃により、製氷容器１内の氷が離氷し て貯氷容器２４内に溜められる。     When a predetermined time elapses, the ice making container 1 rotates as indicated by an arrow A by the ice making motor 22 and comes into contact with the ice removing member 23. Due to the impact at this time, the ice in the ice making container 1 is deiced and stored in the ice storage container 24.

製氷容器１内が空になると再度給水ポンプ１１の駆動により給水タンク１５から製 氷容器１に給水される。この時、蓄冷剤４は凍結した状態から給水によって融解する 。これにより、内容器２に接する水は水面よりも下方の蓄冷剤４に融解熱を奪われて 冷熱を受け取り、内容器２の水面は水面よりも上方の蓄冷剤４に融解熱を奪われて冷 熱を受け取る。従って、より迅速に製氷を行うことができる。 When the inside of the ice making container 1 is emptied, water is supplied from the water supply tank 15 to the ice making container 1 by driving the water supply pump 11 again. At this time, 蓄 cold agent 4 is melted by water from the frozen state. Thus, the water in contact with the container 2 receives cold by heat of melting to 蓄 cold agent 4 below the water surface, the water surface of the inner container 2 a heat of fusion above the 蓄 cold agent 4 the water surface deprives Receive cold. Therefore, ice making can be performed more rapidly.

本実施形態によると、製氷容器１に給水する給水手段による給水を蓄冷剤４の高さ よりも低い水位で停止するので、水面よりも上方に蓄冷剤４が配され、この部分の蓄 冷剤４の冷熱によって内容器２内の水面が冷却される。従って、製氷時間を短縮する ことができる。尚、蓄冷剤４の高さよりも５ｍｍ以上低い水位で給水を停止すると、 蓄冷剤４の冷熱を水面に確実に供給することができる。 According to this embodiment, since the water supply by water supply means for supplying water to the ice tray 1 is stopped at a lower level than the height of the 蓄 cooling agent 4, 蓄 cooling agent 4 is disposed above the water surface, 蓄 of this part The water surface in the inner container 2 is cooled by the cold heat of the coolant 4. Therefore, the ice making time can be shortened. Incidentally, when stopping the feed water at a low level over 5mm than the height of 蓄 cooling agent 4, it is possible to reliably supply the cold heat 蓄 cold agent 4 on the surface of the water.

本発明は、蓄冷剤を備えた製氷用の製氷容器及びそれを用いた製氷装置に利用する ことができる。 The present invention can be utilized to the ice apparatus using ice tray and that for ice having a 蓄 cooling agent.

本発明の第１実施形態の製氷容器を示す斜視図The perspective view which shows the ice making container of 1st Embodiment of this invention. 図１のＡ−Ａ断面図AA sectional view of FIG. 本発明の第２実施形態の製氷装置を示す側面図Side view showing an ice making device according to a second embodiment of the present invention.

１ 製氷容器
２ 内容器
２ａ 仕切り部
３ 外容器
３ａ 突起部
４ 蓄冷剤
５ 水平線
１０ 製氷装置
１１ 給水ポンプ
１２、１３ 導水管
１５ 給水タンク
２０ 製氷部
２２ 離氷モータ
２３ 離氷部材
２４ 貯氷容器 1 ice tray 2 inner vessel 2a partition portion 3 the outer container 3a protruding portions 4 蓄 cooling agent 5 horizon 10 icemaker 11 water supply pump 12 water conduit 15 water supply tank 20 the ice making unit 22 ice removal motor 23 ice removal member 24 ice container

Claims (5)

製氷用の水を溜める内容器と、前記内容器の外側を覆うとともに外側表面が製氷容器の外部となる外容器と、前記内容器と前記外容器との間に封入されて融点が−２０℃以上の蓄冷剤とを備え、
前記内容器の内面側に前記蓄冷剤の高さよりも所定の値だけ低い視認可能な水平線を形成し、
略水平方向外方に突出するフランジ部を前記内容器の上部及び前記外容器の上部に設け、
前記内容器と前記外容器とをそれぞれの前記フランジ部の周端付近で互いに接合し、
前記外容器の底面の中央部に凹部を設けるとともに前記外容器の底面の周部を前記凹部よりも下方に突出させることにより底部表面が曲面状の突起部を形成し、
前記外容器の剛性よりも前記内容器の剛性を大きくするとともに、前記蓄冷剤が凍結すると前記外容器が外側に向けて膨張し、
前記蓄冷剤は製氷時には予め凍結しており、前記蓄冷剤は製氷後離氷した際に凍結した状態を維持し、前記内容器に給水した際には前記蓄冷剤の少なくとも一部が融解することを特徴とする製氷容器。 An inner container for storing water for ice making, an outer container that covers the outside of the inner container and whose outer surface is outside the ice making container, and is sealed between the inner container and the outer container, and has a melting point of −20 ° C. With the above cold storage agent,
Forming a visible horizontal line that is lower than the height of the cold storage agent by a predetermined value on the inner surface side of the inner container;
A flange portion protruding outward in a substantially horizontal direction is provided on the upper part of the inner container and the upper part of the outer container,
The inner container and the outer container are joined to each other in the vicinity of the peripheral edge of each flange portion,
Providing a concave portion at the center of the bottom surface of the outer container and forming a protrusion having a curved bottom surface by causing the peripheral portion of the bottom surface of the outer container to protrude downward from the concave portion,
While increasing the rigidity of the inner container than the rigidity of the outer container, the outer container expands outward when the cold storage agent freezes,
The cold storage agent is frozen in advance at the time of ice making, the cold storage agent maintains a frozen state when the ice is removed after ice making, and at least a part of the cold storage agent is melted when water is supplied to the inner container. An ice-making container. 前記内容器の内面に設けた段差により前記水平線を形成したことを特徴とする請求項１に記載の製氷容器。   The ice making container according to claim 1, wherein the horizontal line is formed by a step provided on an inner surface of the inner container. 前記所定の値は５ｍｍ以上であることを特徴とする請求項１または請求項２に記載の製氷容器。   The ice making container according to claim 1 or 2, wherein the predetermined value is 5 mm or more. 水を溜める内容器と前記内容器の外側を覆うとともに外側表面が製氷容器の外部となる外容器との間に融点が−２０℃以上の蓄冷剤を封入した製氷容器と、前記製氷容器に給水する給水手段とを備え、
略水平方向外方に突出するフランジ部を前記内容器の上部及び前記外容器の上部に設け、
前記内容器と前記外容器とをそれぞれの前記フランジ部の周端付近で互いに接合し、
前記外容器の底面の中央部に凹部を設けるとともに前記外容器の底面の周部を前記凹部よりも下方に突出させることにより底部表面が曲面状の突起部を形成し、
前記外容器の剛性よりも前記内容器の剛性を大きくするとともに、前記蓄冷剤が凍結すると前記外容器が外側に向けて膨張し、
前記蓄冷剤の高さよりも所定の値だけ低い水位で給水を停止し、
前記蓄冷剤は製氷時には予め凍結しており、前記蓄冷剤は製氷後離氷した際に凍結した状態を維持し、前記内容器に給水した際には前記蓄冷剤の少なくとも一部が融解することを特徴とする製氷装置。 An ice making container in which a cold storage agent having a melting point of −20 ° C. or more is enclosed between an inner container for storing water and an outer container that covers the outside of the inner container and whose outer surface is outside the ice making container, and supplies water to the ice making container Water supply means to
A flange portion protruding outward in a substantially horizontal direction is provided on the upper part of the inner container and the upper part of the outer container,
The inner container and the outer container are joined to each other in the vicinity of the peripheral edge of each flange portion,
Providing a concave portion at the center of the bottom surface of the outer container and forming a protrusion having a curved bottom surface by causing the peripheral portion of the bottom surface of the outer container to protrude downward from the concave portion,
While increasing the rigidity of the inner container than the rigidity of the outer container, the outer container expands outward when the cold storage agent freezes,
Stop water supply at a water level that is lower than the height of the cold storage agent by a predetermined value,
The cold storage agent is frozen in advance at the time of ice making, the cold storage agent maintains a frozen state when the ice is removed after ice making, and at least a part of the cold storage agent is melted when water is supplied to the inner container. An ice making device. 前記所定の値は５ｍｍ以上であることを特徴とする請求項４に記載の製氷装置。   The ice making apparatus according to claim 4, wherein the predetermined value is 5 mm or more.
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