JPH0512686Y2 - - Google Patents
Info
- Publication number
- JPH0512686Y2 JPH0512686Y2 JP1985038280U JP3828085U JPH0512686Y2 JP H0512686 Y2 JPH0512686 Y2 JP H0512686Y2 JP 1985038280 U JP1985038280 U JP 1985038280U JP 3828085 U JP3828085 U JP 3828085U JP H0512686 Y2 JPH0512686 Y2 JP H0512686Y2
- Authority
- JP
- Japan
- Prior art keywords
- ice
- water
- making
- circulation pump
- deicing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 218
- 238000000034 method Methods 0.000 claims description 30
- 230000008020 evaporation Effects 0.000 claims description 12
- 238000001704 evaporation Methods 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Description
本考案は製氷機に関し、特に、その除氷工程時
に使用する除氷水の消費量を低減させるための新
規な改良に関するものである。
The present invention relates to an ice maker, and in particular, to a novel improvement for reducing the amount of deicing water used during the ice maker process.
従来、例えば特開昭57−157974号公報及び実公
昭57−172379号公報に開示されているように、
種々の除氷方式が知られている。かかる除氷方式
においては、除氷時に、製氷板の冷却パイプ内に
圧縮機から送られるホツトガスを流すと共に、製
氷機に接続された給水管から取り入れた水道水を
除氷水てとして除氷が完了するまで製氷板の背面
に流し、製氷板の温度を上昇させていた。
Conventionally, as disclosed in, for example, Japanese Patent Application Laid-Open No. 57-157974 and Japanese Utility Model Publication No. 57-172379,
Various deicing methods are known. In this deicing method, hot gas sent from the compressor is passed through the cooling pipe of the ice making plate, and tap water taken in from the water supply pipe connected to the ice making machine is used as the deicing water to complete the deicing process. The temperature of the ice tray was increased by pouring it onto the back of the ice tray until the ice temperature reached 100.
上述のような比較的単純な除氷方式を採用する
と、製氷機全体の制御が簡単であり、また、制御
のための装置も安価ではあるが、除氷が完了し除
氷検知サーモスタツトが作動するまで、除氷水を
流下させるので、その間に、製氷水タンクに流入
した除氷水が溢水し排水されることになり、大量
の水が無駄に消費されていた。例えば、上述の除
氷方式を採用した製氷機では、製氷工程に必要な
水量に対し、10〜15倍の除氷水が必要であり、消
費される水量が極端に多く、有限である水資源の
無駄使いとなつていた。
従つて、本考案の目的は、簡単な制御回路を用
いながら、水の使用量を可及的に少なく抑えるこ
とができる製氷機を提供することである。
If the relatively simple de-icing method described above is adopted, the entire ice maker can be easily controlled, and the control equipment is also inexpensive, but once de-icing is complete, the de-icing detection thermostat is activated. Since the de-icing water is allowed to flow down until the de-icing water is removed, the de-icing water that has flowed into the ice-making water tank overflows and is drained during that time, resulting in a large amount of water being wasted. For example, an ice maker that uses the above-mentioned deicing method requires 10 to 15 times more deicing water than the amount of water required for the ice making process. It had become a waste of money. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an ice maker that uses a simple control circuit and can use as little water as possible.
上述の目的を達成するため、本考案による製氷
機は、製氷板に設けられ、ホツトガス弁を介して
圧縮機に接続された蒸発パイプと、前記製氷板の
上部位置に配設され、同製氷板の表面及び裏面に
それぞれ製氷水及び除氷水を散水する製氷水通路
及び除氷水通路を有する散水器と、前記製氷板の
下部位置に配設されて、同製氷板の表面及び裏面
にそれぞれ散水された製氷水及び除氷水を受ける
と共に、循環ポンプ装置を有する製氷水タンク
と、該製氷水タンクに所要量の製氷水を供給する
ための給水弁を有する給水管と、前記ホツトガス
弁、循環ポンプ装置及び給水弁等の作動を制御す
るため同ホツトガス弁、循環ポンプ装置及び給水
弁に接続された制御回路部とを備え、該制御回路
部により、製氷工程から除氷工程への切り替え時
点に、前記蒸発パイプにホツトガスを流すべく前
記ホツトガス弁を開弁し、前記製氷水タンク内に
次回の製氷工程に必要な量の給水を行うべく前記
給水弁を開弁して、前記切り替え時点から作動し
て次回の製氷工程に必要な量の給水を行うのに十
分な時間に達するとタイムアツプするタイマによ
り制御される所定時間だけ前記給水弁を開弁状態
に保持すると共に、前記切り替え時点の後、前記
循環ポンプ装置により、前記製氷水タンク内の製
氷水を除氷水として前記除氷水通路を介して前記
製氷板の裏面に循環供給するように制御する。
循環ポンプ装置は、製氷水を循環供給するため
の製氷水循環ポンプと、除氷水を循環供給するた
めの除氷水循環ポンプとから構成されていても、
或は１個の循環ポンプから構成されていてもよ
い。
後者の場合、その循環ポンプと散水器との間に
三方弁のような弁装置を制御回路部に接続して設
けると共に、同三方弁に製氷水通路及び除氷水通
路を接続する。この三方弁を制御回路部により制
御して、循環ポンプから送られた製氷水タンク内
の水を、除氷水又は製氷水として除氷水通路又は
製氷水通路に選択的に供給する。
In order to achieve the above object, the ice making machine according to the present invention includes an evaporation pipe installed on an ice making plate and connected to a compressor through a hot gas valve, and an evaporation pipe disposed at an upper position of the ice making plate. a water sprinkler having an ice-making water passage and a de-icing water passage for sprinkling ice-making water and de-icing water on the front and back sides of the ice-making plate, respectively; an ice-making water tank that receives ice-making water and de-icing water and has a circulation pump device; a water supply pipe that has a water supply valve for supplying a required amount of ice-making water to the ice-making water tank; the hot gas valve; and a circulation pump device. and a control circuit unit connected to the hot gas valve, the circulation pump device, and the water supply valve to control the operation of the water supply valve, etc., and the control circuit unit allows The hot gas valve is opened to flow hot gas to the evaporation pipe, and the water supply valve is opened to supply the amount of water necessary for the next ice making process into the ice making water tank, and the operation is started from the switching point. The water supply valve is held open for a predetermined period of time controlled by a timer that times out when sufficient time has been reached to supply the amount of water necessary for the next ice-making process, and after the switching point, the circulation is stopped. A pump device controls the ice-making water in the ice-making water tank to be circulated and supplied as de-icing water to the back surface of the ice-making plate via the de-icing water passage. Even if the circulation pump device is composed of an ice-making water circulation pump for circulating and supplying ice-making water and a de-icing water circulation pump for circulating and supplying de-icing water,
Alternatively, it may be composed of one circulation pump. In the latter case, a valve device such as a three-way valve connected to the control circuit is provided between the circulation pump and the sprinkler, and an ice-making water passage and a deicing water passage are connected to the three-way valve. This three-way valve is controlled by the control circuit to selectively supply the water in the ice-making water tank sent from the circulation pump to the de-icing water passage or the ice-making water passage as de-icing water or ice-making water.
製氷工程から除氷工程への切り替え時点に、ホ
ツトガス弁が開いて蒸発パイプにホツトガスを供
給すると共に、給水弁が開いて製氷水タンクに次
回の製氷工程のための製氷水が供給される。給水
弁はタイマにより所定時間だけ開弁状態に保持さ
れ、所定時間が経過すると、製氷水タンク内に貯
められた所要量の製氷水は、製氷板の裏面に除氷
水として、循環ポンプ装置により循環供給され
る。この除氷水と製氷板の熱交換が完全ではない
ため、製氷板への散水後、製氷水タンクに回収さ
れた水の温度はそれほど下がらず、除氷水として
の必要な熱量を持つているため繰り返し循環して
使用することが可能である。
従つて、除氷水として用いられる量は、除氷工
程時に所定時間だけ製氷水タンク内に供給された
所要量の製氷水であるから、極めて少量の除氷水
によつて除氷工程が完了することになる。
At the time of switching from the ice making process to the deicing process, the hot gas valve opens to supply hot gas to the evaporation pipe, and the water supply valve opens to supply ice making water for the next ice making process to the ice making water tank. The water supply valve is kept open for a predetermined time by a timer, and after the predetermined time has elapsed, the required amount of ice-making water stored in the ice-making water tank is circulated by a circulation pump device as de-icing water on the back of the ice-making plate. Supplied. Because the heat exchange between this deicing water and the ice-making plate is not perfect, the temperature of the water collected in the ice-making water tank does not drop significantly after watering the ice-making plate, and it is repeated repeatedly because it has the necessary calorific value as deicing water. It can be used repeatedly. Therefore, since the amount of de-icing water used is the required amount of ice-making water that is supplied into the ice-making water tank for a predetermined period of time during the de-icing process, the de-icing process can be completed with an extremely small amount of de-icing water. become.
次に、本考案の好適な実施例について添付図面
を参照して詳細に説明するが、図中、同一符号は
同一又は対応部分を示すものとする。
第１図から第３図に示す構成は、本考案による
製氷機の第１実施例を示すものであり、全体がほ
ぼ箱形をなす製氷機本体１の上部における断熱材
２で画成された冷凍機械室３内には、圧縮機４が
設けられていると共に、この冷凍機械室３の下方
位置には、扉体５を有する貯氷庫６が断熱材７に
より画成されている。製氷機本体１内の冷凍機械
室３に隣接する位置には、表面１０ａに複数の縦
リブ８と複数の平面部９とを交互に有する一対の
製氷板１０，１０からなる製氷部１１が配設され
ており、これ等の製氷板１０，１０の対向する裏
面１０ｂ間には、圧縮機４に接続された蒸発パイ
プ１２が間挿されている。
各製氷板１０，１０の上部には、製氷水通路１
３及び除氷水通路１４を有する周知の散水器１５
が設けられており、除氷水通路１４が製氷板１
０，１０の上端部間に位置していることにより、
散水器１５が製氷板１０，１０の上部に固定的に
配設されている。
製氷機には、製氷水通路１３の底部に形成され
た左右の製氷水散水口１３ａから放出された製氷
水は、製氷板１０，１０の各平面部９を流下し、
各平面部９の蒸発パイプ１２と対応した部分で粒
状氷１６となる。また、除氷に際しては、除氷水
通路１４の除氷水放出口１４ａから放出された除
氷水は、各製氷板の裏面１０ｂに供給される。
貯氷庫６を画成する断熱材７の図示の段部に形
成された保持部１７には、製氷水タンク１８が設
けられており、この製氷水タンク１８の底部に一
端で接続された製氷水パイプ１９は、他端で製氷
水循環ポンプ２０に接続されている。また、製氷
水タンク１８の底部に一端で接続された除氷水パ
イプ２１は、他端で除氷水循環ポンプ２２に接続
されている。上述の製氷水循環ポンプ２０及び除
氷水循環ポンプ２２が循環ポンプ装置１８ａを構
成している。
更に、製氷水タンク１８の上部には、多数の案
内孔１８ｂを有する氷案内板２３が傾斜して配設
されている。製氷水タンク１８は、給水弁２４を
有する給水管２４ａの一端２４ｂが案内されてい
ると共に、給水管２４ａの他端は、図示しない外
部水道管に接続されている。
散水器１５の製氷水通路１３内には、同製氷水
通路１３における水位を検出するためにフロート
スイツチ２５が設けられている。また、製氷板１
０，１０間に設けられた蒸発パイプ１２には、圧
縮機４からの冷媒ガスが凝縮器２６及びキヤピラ
リーチユーブ２７を介して給送され、この冷媒ガ
スは、接続管２８を介して圧縮機４に戻る。圧縮
機４からのホツトガスは、ホツトガス弁２９を有
するバイパス管３０を介して蒸発パイプ１２に直
接流れる。
次に、第３図には、本考案による製氷機の制御
回路部３１が示されている。同図において、互い
に直列に接続された常閉接点X2及び第１タイマ
TM1は圧縮機４に対し並列に接続され、この第
１タイマTM1に対して、給水弁２４、除氷水循
環ポンプ２２及びホツトガス弁２９が各々並列に
設けられていると共に、給水弁２４には第１タイ
マTM1の常閉接点TM1bが直列に接続され、除氷
水循環ポンプ２２には第１タイマTM1の常開接
点TM1aが直列に接続されている。
製氷水循環ポンプ２０には常開接点X1が直列
に接続され、この製氷水循環ポンプ２０には、凝
縮器２６のフアンモータ３２と、第２タイマ
TM2及び除氷完了サーモスイツチThの第１直列
体３３と、リレーＸ及びフロートスイツチ２５の
第２直列体３４とが、前記製氷水循環ポンプ２０
に対し並列に接続されている。更に、第２タイマ
TM2の常開接点TM2aは、一端で第１直列体３３
に、他端でフアンモータ３２及び製氷水循環ポン
プ２０に接続されている。
次に、以上のような構成を有する本考案の製氷
機を作動させる場合について説明する。
電源を投入すると、製氷機は作動し、圧縮機４
が駆動され、また、常閉接点X2を介して第１タ
イマTM1に通電され、そのタイムアツプ時まで
常閉接点TM1bを介して給水弁２４が開弁状態に
保持され、製氷水タンク１８に給水が行われる。
同時に、常閉接点X2を介してホツトガス弁２９
（HV）が開弁し製氷板が加温されるためオン状
態にある除氷完了サーモスイツチThを介して第
２タイマTM2に通電され、同第２タイマがタイ
ムアツプすると、その常開接点TM2aと上述の除
氷完了サーモスイツチThを介して、製氷水循環
ポンプ２０及びフアンモータ３２が駆動される。
そのため、製氷水タンク１８内の製氷水が製氷
循環ポンプ２０により製氷水パイプ１９を介して
散水器１５の製氷水通路１３に圧送され、フロー
トスイツチ２５がオン状態となり、リレーＸの励
磁によつてその常開接点X1が閉状態となつて製
氷水循環ポンプ２０が運転継続状態に保持され、
製氷機は製氷準備状態から製氷工程に入る。この
時点では、常閉接点X2が開状態であるため、給
水弁２４、ホツトガス弁２９及び除氷水循環ポン
プ２２は非作動状態に保持される。
製氷水循環ポンプ装置２０から製氷水供給パイ
プ２０ａを経て散水器１５に供給された製氷水
は、製氷水通路１３に設けられた製氷水散水口１
３ａを経て各製氷板１０，１０の平面部９に供給
されて蒸発パイプ１２内の冷媒により徐々に冷却
され、この蒸発パイプ１２に対応した各平面部９
上で凍結して粒状の氷１６に成長するが、凍結し
なかつた製氷水は製氷水タンク１８内に落下して
戻り、再び、製氷水循環ポンプ２０により各製氷
板１０，１０の平面部９上に循環供給される。そ
の後、氷１６が所定の大きさに成長すると、水か
ら氷への変態により、製氷水タンク１８内の製氷
水が減少して製氷水循環ポンプ２０は空気を吸い
込むことにより、製氷水通路１３内における水位
が低下するため、フロートスイツチ２５がオフ状
態となり、リレーＸが解磁され、常開接点X1が
開状態となつて製氷水循環ポンプ２０が停止す
る。同時に、常閉接点X2が閉状態となつて製氷
機は製氷工程から除氷工程に切り替わり、ホツト
ガス弁２９が開弁し、第１タイマTM1が作動状
態となると共に、第１タイマTM1の常閉接点
TM1bを介して給水弁２４が開弁し、次回の製氷
工程に必要な水量を製氷水タンク１８に供給する
のに必要な所定時間が経過すると、第１タイマ
TM1の常閉接点TM1bが開状態となつて給水弁２
４が閉じ、第１タイマTM1の常開接点TM1aが閉
状態となり、除氷水循環ポンプ２２が作動して除
氷が行われる。かくして、蒸発パイプ１２内にホ
ツトガスが供給され、かつ、製氷水タンク１８内
の製氷水が除氷水として除氷水循環ポンプ２２に
より除氷水通路１４内に圧送されて、除氷水放出
口１４ａから各製氷板１０，１０の裏面１０ｂに
放出される。この除氷水は、製氷水タンク１８内
に全て回収され、次の製氷工程で製氷水として用
いられる。
前述の除氷工程が進行し、各製氷板１０，１０
の平面部９の温度が上昇すると、製氷板に対する
各氷１６の付着面が若干融解するため、氷１６は
その自重により落下し、貯氷庫６内に貯水され
る。
前述の除氷工程が完了すると、前記製氷板１０
に設けられた除氷完了検知サーモスイツチThが
閉状態となり、第２タイマTM2が作動し、その
タイムアツプ時に常開接点TM2aが閉状態となつ
て再び製氷水循環ポンプ２０が作動を始め、次回
の製氷工程が開始される。
尚、本考案による製氷機は、以上の第１実施例
において述べた構成のみに限定されるものではな
く、例えば、第４図及び第５図に示す第２実施例
のように構成しても全く同等の効果を奏すること
ができる。即ち、この第２実施例においては、製
氷水タンク１８に設けられた循環ポンプ装置１８
ａを１つの循環ポンプのみで構成し、三方弁４０
を用いて散水器１５の製氷水通路１３又は除氷水
通路１４に選択的に水を供給するようになつてい
る。以下、第１実施例と同一部分についてはその
説明を省略し、第１実施例と異なる部分について
のみ説明する。
即ち、第２実施例においては、除氷水循環ポン
プ２２及び除氷水パイプ２１を廃止し、製氷水循
環ポンプ２０と製氷水通路１３とを接続する製氷
水供給パイプ２０ａの途中位置に三方弁４０を設
け、この三方弁４０の第１出口弁４０ａが製氷水
通路１３に接続され、この三方弁４０の第２出口
弁４０ｂが除氷水通路１４に接続されている。更
に、三方弁４０は、第５図に示すように、第３図
に示す第１実施例の制御回路部３１では除氷水循
環ポンプ２２が接続されていた位置に接続されて
いる。
この第２実施例においては、製氷水循環ポンプ
２０は常時作動するように接続されており、製氷
水タンク１８からの製氷水は、製氷工程において
は三方弁４０の第２出口弁４０ｂが閉弁され、製
氷水通路１３のみに製氷水が供給され、除氷工程
においては、三方弁４０の第１出口弁４０ａが閉
弁され、除氷水通路１４のみに製氷水が除氷水と
して供給される。
尚、第２実施例においては、除氷水循環ポンプ
を除去し、製氷水水循環ポンプで製氷水と除氷水
の供給を選択的に行つているが、逆に除氷水循環
ポンプのみを用いて、製氷水及び除氷水の供給を
行つても、同様の効果を得ることができる。
Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which the same reference numerals indicate the same or corresponding parts. The configuration shown in FIGS. 1 to 3 shows the first embodiment of the ice maker according to the present invention, and is defined by a heat insulating material 2 at the upper part of the ice maker body 1, which has an approximately box shape as a whole. A compressor 4 is provided in the refrigeration machine room 3, and an ice storage 6 having a door body 5 is defined by a heat insulating material 7 below the refrigeration machine room 3. An ice making section 11 consisting of a pair of ice making plates 10, 10 having a plurality of vertical ribs 8 and a plurality of flat parts 9 alternately on a surface 10a is disposed in a position adjacent to the freezing machine room 3 in the ice making machine main body 1. An evaporation pipe 12 connected to the compressor 4 is inserted between the opposing back surfaces 10b of these ice-making plates 10, 10. At the top of each ice making plate 10, 10, an ice making water passage 1 is provided.
3 and a known water sprinkler 15 having a deicing water passage 14
is provided, and the deicing water passage 14 is connected to the ice making plate 1.
By being located between the upper ends of 0 and 10,
A water sprinkler 15 is fixedly disposed above the ice-making plates 10, 10. In the ice making machine, the ice making water discharged from the left and right ice making water sprinkling ports 13a formed at the bottom of the ice making water passage 13 flows down each flat part 9 of the ice making plates 10, 10.
Granular ice 16 forms in a portion of each plane portion 9 that corresponds to the evaporation pipe 12 . Further, during deicing, deicing water discharged from the deicing water outlet 14a of the deicing water passage 14 is supplied to the back surface 10b of each ice making plate. An ice-making water tank 18 is provided in a holding portion 17 formed on the illustrated stepped portion of the heat insulating material 7 that defines the ice storage 6, and an ice-making water tank 18 is connected at one end to the bottom of the ice-making water tank 18. The pipe 19 is connected to an ice-making water circulation pump 20 at the other end. Further, a deicing water pipe 21 connected at one end to the bottom of the ice making water tank 18 is connected to a deicing water circulation pump 22 at the other end. The ice making water circulation pump 20 and the deicing water circulation pump 22 described above constitute the circulation pump device 18a. Further, at the top of the ice-making water tank 18, an ice guide plate 23 having a large number of guide holes 18b is arranged at an angle. The ice-making water tank 18 is guided by one end 24b of a water supply pipe 24a having a water supply valve 24, and the other end of the water supply pipe 24a is connected to an external water pipe (not shown). A float switch 25 is provided in the ice-making water passage 13 of the sprinkler 15 to detect the water level in the ice-making water passage 13. Also, ice making plate 1
Refrigerant gas from the compressor 4 is fed to the evaporator pipe 12 provided between 0 and 10 via a condenser 26 and a capillary reach tube 27, and this refrigerant gas is supplied to the compressor via a connecting pipe 28. Return to 4. Hot gas from the compressor 4 flows directly to the evaporator pipe 12 via a bypass pipe 30 with a hot gas valve 29. Next, FIG. 3 shows a control circuit section 31 of the ice maker according to the present invention. In the same figure, two normally closed contacts and a first timer are connected in series with each other.
TM 1 is connected in parallel to the compressor 4 , and a water supply valve 24 , a deicing water circulation pump 22 and a hot gas valve 29 are each provided in parallel to the first timer TM 1 . The normally closed contact TM 1b of the first timer TM 1 is connected in series, and the normally open contact TM 1a of the first timer TM 1 is connected in series to the deicing water circulation pump 22 . A normally open contact X 1 is connected in series to the ice-making water circulation pump 20, and the ice-making water circulation pump 20 is connected to a fan motor 32 of the condenser 26 and a second timer.
A first series body 33 of the TM 2 and the deicing completion thermo switch Th, and a second series body 34 of the relay X and the float switch 25 are connected to the ice making water circulation pump 20.
connected in parallel to Furthermore, the second timer
The normally open contact TM 2a of TM 2 is connected to the first series body 33 at one end.
The other end is connected to the fan motor 32 and the ice-making water circulation pump 20. Next, a case will be described in which the ice making machine of the present invention having the above configuration is operated. When the power is turned on, the ice maker starts operating and the compressor 4
is driven, and the first timer TM 1 is energized via the normally closed contact Water will be supplied to
At the same time, the hot gas valve 29 is connected via the normally closed contact X 2 .
(HV) is opened and the ice making plate is heated, so the second timer TM 2 is energized via the deicing completion thermoswitch Th which is in the ON state, and when the second timer times up, its normally open contact TM 2a and the above-mentioned deicing completion thermoswitch Th, the ice-making water circulation pump 20 and the fan motor 32 are driven. Therefore, the ice making water in the ice making water tank 18 is pumped by the ice making circulation pump 20 through the ice making water pipe 19 to the ice making water passage 13 of the sprinkler 15, the float switch 25 is turned on, and the relay X is energized. The normally open contact X 1 is closed and the ice-making water circulation pump 20 is maintained in a continuous operation state,
The ice maker enters the ice making process from the ice making preparation state. At this point, the normally closed contact X2 is open, so the water supply valve 24, hot gas valve 29, and deicing water circulation pump 22 are kept inactive. The ice-making water supplied from the ice-making water circulation pump device 20 to the water sprinkler 15 via the ice-making water supply pipe 20a flows through the ice-making water sprinkling port 1 provided in the ice-making water passage 13.
3a, and is gradually cooled by the refrigerant in the evaporation pipe 12.
The ice-making water freezes on the top and grows into granular ice 16, but the ice-making water that does not freeze falls back into the ice-making water tank 18 and is again pumped onto the flat surface 9 of each ice-making plate 10, 10 by the ice-making water circulation pump 20. is supplied in circulation. After that, when the ice 16 grows to a predetermined size, the ice making water in the ice making water tank 18 decreases due to the transformation from water to ice, and the ice making water circulation pump 20 sucks air, thereby increasing the amount of ice making water in the ice making water passage 13. As the water level decreases, the float switch 25 is turned off, the relay X is demagnetized, the normally open contact X1 is opened, and the ice-making water circulation pump 20 is stopped. At the same time, the normally closed contact X 2 is closed, the ice maker switches from the ice making process to the deicing process, the hot gas valve 29 is opened, the first timer TM 1 is activated, and the first timer TM 1 is activated. Normally closed contact
When the water supply valve 24 is opened via TM 1b and the predetermined time required to supply the amount of water necessary for the next ice-making process to the ice-making water tank 18 has elapsed, the first timer starts.
Normally closed contact TM 1b of TM 1 becomes open and water supply valve 2
4 is closed, the normally open contact TM 1a of the first timer TM 1 is closed, and the deicing water circulation pump 22 is activated to perform deicing. In this way, hot gas is supplied into the evaporation pipe 12, and the ice-making water in the ice-making water tank 18 is force-fed as de-icing water into the de-icing water passage 14 by the de-icing water circulation pump 22, and each ice-making water is supplied from the de-icing water outlet 14a. It is released onto the back surface 10b of the plates 10, 10. All of this de-icing water is collected into the ice-making water tank 18 and used as ice-making water in the next ice-making process. As the above-mentioned deicing process progresses, each ice making plate 10, 10
When the temperature of the flat portion 9 rises, the surface of each ice 16 attached to the ice making plate melts a little, so the ice 16 falls due to its own weight and is stored in the ice storage 6. When the above-mentioned deicing process is completed, the ice making plate 10
The de-icing completion detection thermo switch Th provided at The ice making process begins. Note that the ice making machine according to the present invention is not limited to the configuration described in the first embodiment above, but may also be configured as in the second embodiment shown in FIGS. 4 and 5, for example. Exactly the same effect can be achieved. That is, in this second embodiment, the circulation pump device 18 provided in the ice making water tank 18
A consists of only one circulation pump, and a three-way valve 40
Water is selectively supplied to the ice making water passage 13 or the deicing water passage 14 of the water sprinkler 15 using the water sprinkler 15. Hereinafter, descriptions of parts that are the same as those in the first embodiment will be omitted, and only parts that are different from the first example will be described. That is, in the second embodiment, the deicing water circulation pump 22 and the deicing water pipe 21 are abolished, and a three-way valve 40 is provided in the middle of the ice making water supply pipe 20a that connects the ice making water circulation pump 20 and the ice making water passage 13. A first outlet valve 40a of this three-way valve 40 is connected to the ice-making water passage 13, and a second outlet valve 40b of this three-way valve 40 is connected to the deicing water passage 14. Furthermore, as shown in FIG. 5, the three-way valve 40 is connected to the position where the deicing water circulation pump 22 was connected in the control circuit section 31 of the first embodiment shown in FIG. In this second embodiment, the ice-making water circulation pump 20 is connected to operate at all times, and the ice-making water is supplied from the ice-making water tank 18 when the second outlet valve 40b of the three-way valve 40 is closed during the ice-making process. Ice making water is supplied only to the ice making water passage 13, and in the deicing process, the first outlet valve 40a of the three-way valve 40 is closed, and ice making water is supplied only to the deicing water passage 14 as deicing water. In the second embodiment, the de-icing water circulation pump is removed and the ice-making water circulation pump is used to selectively supply ice-making water and de-icing water. Similar effects can be obtained by supplying water and deicing water.
以上のように、本考案による製氷機は、製氷工
程から除氷工程への切り替え時点に、ホツトガス
弁を開いて、蒸発パイプにホツトガスを流すと共
に、給水弁を開いて、製氷水タンク内にタイマに
より制御される所定時間だけ所要量の製氷水を供
給し、切り替え時点の後、循環ポンプ装置により
製氷水タンク内の製氷水を除氷水として製氷板の
裏面に循環供給する製氷回路部を備える構成を有
しているので、製氷水タンク内に貯水した製氷水
のみを除氷水として循環使用することにより除氷
水の節水が可能であるだけでなく、除氷工程の開
始時に、製氷水タンクに所定時間だけ給水し、そ
れを除氷水として使用するので、使用される除氷
水の温度が給水の温度に近いため、除氷速度が促
進され、製氷機の能力を実質的に向上させること
ができる。
As described above, the ice maker according to the present invention opens the hot gas valve to flow hot gas into the evaporation pipe at the time of switching from the ice making process to the deicing process, and at the same time opens the water supply valve and stores the timer in the ice making water tank. A configuration comprising an ice-making circuit section that supplies the required amount of ice-making water for a predetermined time controlled by the system, and after the switching point, circulates the ice-making water in the ice-making water tank to the back side of the ice-making plate as de-icing water using a circulation pump device. Not only is it possible to conserve water by circulating only the ice-making water stored in the ice-making water tank as de-icing water, but also it is possible to save water by circulating only the ice-making water stored in the ice-making water tank as de-icing water. Since the water is supplied for a certain period of time and used as deicing water, the temperature of the deicing water used is close to the temperature of the supplied water, so the deicing speed is accelerated and the capacity of the ice maker can be substantially improved.
第１図は、本考案による製氷機の実施例の全体
構成を示す断面図、第２図は、第１図の製氷機の
水回路及び冷媒回路を示す構成図、第３図は、第
１図の製氷機の制御回路を示す回路図、第４図
は、本考案による製氷機の他の実施例の水回路及
び冷媒回路を示す構成図、第５図は、制御回路部
の他の実施例を示す回路図である。
４……圧縮機、１０……製氷板、１２……蒸発
パイプ、１３……製氷水通路、１４……除氷水通
路、１５……散水器、１８……製氷水タンク、１
８ａ……循環ポンプ装置、２０……製氷水循環ポ
ンプ（循環ポンプ装置）、２２……除氷水循環ポ
ンプ（循環ポンプ装置）、２４……給水弁、２４
ａ……給水管、２９……ホツトガス弁、３１……
制御回路部、TM1……第１タイマ、４０……三
方弁。
FIG. 1 is a sectional view showing the overall configuration of an embodiment of the ice maker according to the present invention, FIG. 2 is a configuration diagram showing the water circuit and refrigerant circuit of the ice maker shown in FIG. 1, and FIG. FIG. 4 is a circuit diagram showing the control circuit of the ice maker shown in FIG. 4. FIG. 4 is a block diagram showing the water circuit and refrigerant circuit of another embodiment of the ice maker according to the present invention. FIG. FIG. 3 is a circuit diagram showing an example. 4... Compressor, 10... Ice making plate, 12... Evaporation pipe, 13... Ice making water passage, 14... Deicing water passage, 15... Water sprinkler, 18... Ice making water tank, 1
8a... Circulation pump device, 20... Ice making water circulation pump (circulation pump device), 22... De-icing water circulation pump (circulation pump device), 24... Water supply valve, 24
a... Water supply pipe, 29... Hot gas valve, 31...
Control circuit section, TM 1 ...first timer, 40...three-way valve.
Claims (1)
して圧縮機４に接続された蒸発パイプ１２と、前
記製氷板１０の上部位置に配設され、同製氷板１
０の表面及び裏面にそれぞれ製氷水及び除氷水を
散水する製氷水通路１３及び除氷水通路１４を有
する散水器１５と、前記製氷板１０の下部位置に
配設されて、同製氷板１０の表面及び裏面にそれ
ぞれ散水された製氷水及び除氷水を受けると共
に、循環ポンプ装置１８ａを有する製氷水タンク
１８と、該製氷水タンク１８に所要量の製氷水を
供給するための給水弁２４を有する給水管２４ａ
と、前記ホツトガス弁２９、循環ポンプ装置１８
ａ及び給水弁２４等の作動を制御するため同ホツ
トガス弁２９、循環ポンプ装置１８ａ及び給水弁
２４に接続された制御回路部３１とを備え、該制
御回路部３１により、製氷工程から除氷工程への
切り替え時点に、前記蒸発パイプ１２にホツトガ
スを流すべく前記ホツトガス弁２９を開弁し、前
記製氷水タンク１８内に次回の製氷工程に必要な
量の給水を行うべく前記給水弁２４を開弁して、
前記切り替え時点から作動して次回の製氷工程に
必要な量の給水を行うのに十分な時間に達すると
タイムアツプするタイマTM1により制御される
所定時間だけ前記給水弁２４を開弁状態に保持す
ると共に、前記切り替え時点の後、前記循環ポン
プ装置１８ａにより、前記製氷水タンク１８内の
製氷水を除氷水として前記除氷水通路１４を介し
て前記製氷板１０の裏面に循環供給するように制
御する、製氷機。 An evaporation pipe 12 provided on the ice making plate 10 and connected to the compressor 4 via a hot gas valve 29;
a water sprinkler 15 having an ice-making water passage 13 and a de-icing water passage 14 for sprinkling ice-making water and de-icing water on the front and back surfaces of the ice-making plate 10, respectively; and an ice-making water tank 18 that receives ice-making water and de-icing water sprinkled on the back surface, respectively, and has a circulation pump device 18a, and a water supply that has a water supply valve 24 for supplying the required amount of ice-making water to the ice-making water tank 18. tube 24a
, the hot gas valve 29 and the circulation pump device 18
The hot gas valve 29, the circulation pump device 18a, and a control circuit section 31 connected to the water supply valve 24 are provided to control the operations of the water supply valve 24, etc., and the control circuit section 31 controls the ice making process to the deicing process. At the time of switching, the hot gas valve 29 is opened to flow hot gas to the evaporation pipe 12, and the water supply valve 24 is opened to supply the amount of water necessary for the next ice making process into the ice making water tank 18. speak,
The water supply valve 24 is kept open for a predetermined period of time controlled by a timer TM 1 which operates from the switching point and times up when sufficient time is reached to supply the amount of water necessary for the next ice-making process. At the same time, after the switching point, the circulation pump device 18a controls the ice making water in the ice making water tank 18 to be circulated and supplied to the back surface of the ice making plate 10 via the deicing water passage 14 as deicing water. , ice machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985038280U JPH0512686Y2 (en) | 1985-03-19 | 1985-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985038280U JPH0512686Y2 (en) | 1985-03-19 | 1985-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61156863U JPS61156863U (en) | 1986-09-29 |
| JPH0512686Y2 true JPH0512686Y2 (en) | 1993-04-02 |
Family
ID=30545134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985038280U Expired - Lifetime JPH0512686Y2 (en) | 1985-03-19 | 1985-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0512686Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749107U (en) * | 1980-09-05 | 1982-03-19 | ||
| JPS5851164B2 (en) * | 1978-12-12 | 1983-11-15 | 東芝テック株式会社 | electric cooker |
| JPS5918256B2 (en) * | 1981-12-18 | 1984-04-26 | 株式会社 藤堂製作所 | Method and device for tying lid cutting threads of packaging containers |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851164U (en) * | 1981-10-02 | 1983-04-06 | 星崎電機株式会社 | Manufacturing equipment |
| JPS5918256U (en) * | 1982-07-27 | 1984-02-03 | 株式会社東芝 | ice making device |
-
1985
- 1985-03-19 JP JP1985038280U patent/JPH0512686Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851164B2 (en) * | 1978-12-12 | 1983-11-15 | 東芝テック株式会社 | electric cooker |
| JPS5749107U (en) * | 1980-09-05 | 1982-03-19 | ||
| JPS5918256B2 (en) * | 1981-12-18 | 1984-04-26 | 株式会社 藤堂製作所 | Method and device for tying lid cutting threads of packaging containers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61156863U (en) | 1986-09-29 |
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