JP2005030674A - Cold air discharger - Google Patents

Cold air discharger Download PDF

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Publication number
JP2005030674A
JP2005030674A JP2003195914A JP2003195914A JP2005030674A JP 2005030674 A JP2005030674 A JP 2005030674A JP 2003195914 A JP2003195914 A JP 2003195914A JP 2003195914 A JP2003195914 A JP 2003195914A JP 2005030674 A JP2005030674 A JP 2005030674A
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Japan
Prior art keywords
cold
container
temperature
cold air
cool
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Pending
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JP2003195914A
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Japanese (ja)
Inventor
Masanobu Yatsugi
正信 矢継
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Abstract

<P>PROBLEM TO BE SOLVED: To cold-insulate a normal box or container without a cold insulation device to a constant cold temperature. <P>SOLUTION: This cold air discharger discharging cold air obtained from a cold storage material such as dry ice is put in the normal box or container without a cold insulation device, and the temperature inside the normal box or container is kept constant by the cold air. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【産業上の利用分野】本発明はドライアイス等の蓄冷材を冷熱源とする冷気発生容器に関するものであり、本発明を容器に入れて、この容器の内部を一定冷温に保つものである。
【0002】
【従来の技術】ドライアイス等の蓄冷材を冷熱源として使用して断熱容器内を冷温にする従来の断熱容器の保冷方式に於いては、断熱容器内に蓄冷材を入れる空間を設け、この空間から冷機を排出し、温度センサーとファンを使ってこの断熱容器内を一定低温に保つものや、断熱容器内に配管された銅管コイル内に、液化ガス等の冷媒を噴霧して、この断熱容器内を低温に保つもの等があった。
【0003】これら従来の方式では、断熱容器内部に保冷のための装置が固定的に取り付けられていた。
【0004】たとえば、特開平11−344277では、保冷容器内に冷熱源であるドライアイスを入れる収納部と、ファンを内蔵した小部屋とを有し、これれらとセンサーを使って一定冷温を保つのもであるが、保冷容器の中に、冷温の発生源、一定温度維持のための機構が固定的に装置されているのである。
【0005】つまり従来に於いては、一つの保冷容器にはこの保冷容器の体積に応じた、一つの保冷装置や保冷機構が固定的に取り付けらているので、汎用性に欠け製造コストが高いと云う欠点があった。
【0006】例えばマグロ用に作られた大型保冷容器では、大きなドライアイスを入れる蓄冷材室と大型ファンを有する保冷装置を必要とするし、ひらめ用に作られた小型保冷容器では、小さなドライアイスを入れる蓄冷材室と小型ファンを有する保冷装置を必要とする。
【0007】
【本発明が解決する課題】本発明に於いては、冷温維持のための装置を持たない「単なる容器、または単なる断熱された箱」の中に、本発明たる冷気排出器を入れて、この「単なる容器、または単なる断熱された箱」の中を一定冷温を保つ保冷容器として使用する事を可能にする事を目的としたものである。
【0008】
【課題を解決する手段】ドライアイスを出し入れする事が出来る様に、真空容器であるいわゆる魔法瓶、又は発砲スチロール等の断熱容器に開閉蓋を設けると共に、ドライアイスからの冷気を排出すためのファンと、この噴出しを停止するためのシャッターとを介して冷気排出口を設ける。
【0009】この様な構造の冷気排出器を被保冷物を入れた被保冷容器の上部に取り付けて、この中の温度を温度センサーで検出し、本発明容器に内臓した制御回路またはマイコン等で、シャッターとファンを操作して冷気の排出をコントロールし、一定冷温に保つ。
【0010】この様にして、保冷装置を有しない普通の容器であっても、この普通の容器に本発明を取り付けて、冷気を排出する事により、一定冷温を保つ保冷容器が完成するのである。
【0011】
【実施例】以下図を使って、普通の容器であるところの保冷箱300の蓋310に本発明を取り付けて、蓄冷材にドライアイス50を使用して、この保冷箱300内の温度を−5°Cに均一に保つ実施例について説明する。
【0012】本発明の筐体であるところの発泡スチロール製の本体容器100の上部は蝶番105を介して開閉可能にな開閉蓋110となっていて、ドライアイス50の出し入れが容易に行える。
【0013】この本体容器100の底部中央の凹部150にはシロッコファン200およびモーター205が設置されていて、ドライアイス50の昇華ガスであるところの炭酸ガスの冷気は、シャッター211〜214を介し排出路221〜224を経由して各側面の排出口231〜234から本体容器100の外部に、即ち箱保冷用300の内部に排出される。この排出冷気により保冷箱300内部は温度が低下するのである。
【0014】冷気が保冷箱300の隅々まで行き渡る様に、東西南北の四隅に温度センサー241〜244を、排出口231〜234に対応してこれらの直下に設置する。そしてシャッター211〜214の開閉とモーター205の起動、停止を制御する。
【0015】いま、ドライアイス50を入れた本発明を保冷箱300の蓋部310に取り付けて保冷を開始したとする。当初、保冷箱300の内部の温度は外気温度とほぼ同じであり、−5°C度で作動する様セットされた温度センサー241〜244は作動せず、すべてのシャッター211〜214は開き、シロッコファン200は回転し、全ての排出口231〜234から保冷箱300の隅々に冷気を排出し続ける。
【0016】そして、西側部分が−5°C度になると、西側温度センサー241が作動して西側シャッター231を閉鎖し、西側排出口231からの冷気排出を停止させる。
【0017】南側部分が−5°C度になると、南側温度センサー242が作動して南側シャッター232を閉鎖し、南側排出口232からの冷気排出を停止させる。
【0018】東側部分が−5°C度になると、東温度センサー243が作動して東側シャッター233を閉鎖し、東側排出口233からの冷気排出を停止させる。
【0019】北側部分が−5°C度になると、北側温度センサー244が作動して北側シャッター234を閉鎖し、北側排出口234からの冷気排出を停止させる。
【0020】この様にして、東西南北の全ての部分が−5°C度になると、モーター205の電源を切断してシロッコファ200ンの回転を停止させる。
【0021】上記した経緯で本発明から冷気が保冷箱300内の隅々まで行き渡り、−5°Cの冷温になるのである。
【0022】そして、保冷箱300の内部温度は外気温により−5°Cより温度が上昇すると、東西南北いずれかの温度センサーが作動し、モーター205が起動してシロッコファンを回転させると共に、これらの温度センサーに対応した部分のシャッターを開き、冷気の排出を再開し、−5°Cの一定冷温を保つのである。
【0023】もし外気温度が低く、保冷箱300内の温度が上昇せず、閉じたシャッターから漏れ出した冷気により−5°C度の設定温度より更に温度低下が継続する場合は、保冷箱300の外気給排弁350を開閉して外気を取り入れて−5°C度の設定温度を保つ。
【0024】この外気給排弁310は、冷気の源であるところのドライアイス200の昇華ガスたる炭酸ガスが、この保冷箱300の内部に充満して内圧が上昇し破壊する事が無いようにするための安全弁としての役割をも果たす。
【0025】上記の説明に於いては、東西南北の四隅に冷気を噴出して、均一な温度分布にするため、本発明の冷気噴出口は4個あるが、例えばひらめ一匹用の比較的小さな保冷箱では冷気噴出口は1個でもよい。
【0026】また、本体容器は説明では発砲スチロールであるが、現実的には、この発砲スチロールをアルミ板で外張りする等して耐久性を持たせた本体容器にする事が考えられる。 更に、より長時間の保冷期間を求めるならば本体容器を魔法瓶等の真空容器にして、この蓋部分に冷機噴出しのための各装置を取り付けた本発明も考えられる。
【発明の効果】冷温を維持するための装置である本発明と、保冷箱とが別々であるので、従来の様に被保冷物の形状に合わせて、保冷容器の体積と保冷装置の能力を仕様を決定して保冷箱全体を作る必要がなく、保冷箱の容積に応じて、本発明の数量を増減するだけで済むので、非常に経済的である
【図面の簡単な説明】
【図1】斜視図
【図2】断面図
【図3】蓋を開けた上面図
【図4】本発明を保冷箱の蓋部に取り付けた図
【符号の説明】
50 ドライアイス
100 本体容器
101 西側温度センサーコネクタ
102 南側温度センサーコネクタ
103 東側温度センサーコネクタ
110 開閉蓋
130 蝶番
150 凹部
200 シロッコファン
205 モーター
211 西側シャッター
212 南側シャッター
213 東側シャッター
214 北側シャッター
221 西側排出路
222 南側排出路
223 東側排出路
224 北側排出路
231 西側排出口
232 南側排出口
233 東側排出口
234 北側排出口
241 西側温度センサー
242 南側温度センサー
243 東側温度センサー
244 北側温度センサー
300 保冷箱
310 保冷箱蓋部
350 外気給排弁
F 被保冷物
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold air generating container using a cold storage material such as dry ice as a cold heat source. The present invention is placed in a container and the inside of the container is kept at a constant cold temperature.
[0002]
2. Description of the Related Art In the conventional heat insulation container cooling system that uses a cold storage material such as dry ice as a cold heat source to cool the inside of the heat insulation container, a space for storing the cold storage material is provided in the heat insulation container. The cooler is discharged from the space, and a refrigerant such as liquefied gas is sprayed into the one that keeps the inside of the heat insulation container at a constant low temperature using a temperature sensor and a fan, or the copper pipe coil that is piped in the heat insulation container. There were things which kept the inside of an insulated container low.
In these conventional systems, a device for keeping cold is fixedly installed inside the heat insulating container.
For example, in Japanese Patent Laid-Open No. 11-344277, there is a storage section for storing dry ice as a cold heat source in a cold storage container, and a small room containing a fan, and these and a sensor are used to maintain a constant cold temperature. Although it is kept, a cold temperature source and a mechanism for maintaining a constant temperature are fixedly installed in the cold container.
That is, in the prior art, since one cold storage device and cold storage mechanism corresponding to the volume of the cold storage container are fixedly attached to one cold storage container, it is not versatile and the manufacturing cost is high. There was a drawback.
For example, a large cold storage container made for tuna requires a cold storage device having a large storage ice and a large fan for storing large dry ice, and a small dry ice container for a small cold storage container made for inspiration. Requires a cold storage device with a cool storage room and a small fan.
[0007]
In the present invention, the cold air discharger according to the present invention is placed in a "simple container or simply insulated box" that does not have a device for maintaining cold temperature. The purpose is to make it possible to use the inside of a “simple container or simply insulated box” as a cold storage container that maintains a constant cold temperature.
[0008]
Means for Solving the Problem A fan for discharging cold air from dry ice as well as a so-called thermos, which is a vacuum container, or a heat insulating container such as a polystyrene foam so that dry ice can be taken in and out. And a cool air outlet through a shutter for stopping the ejection.
The cold air discharger having such a structure is attached to the upper part of the cold container containing the cold object, and the temperature in the container is detected by a temperature sensor, and the control circuit or microcomputer incorporated in the container of the present invention is used. , Operate the shutter and fan to control the discharge of cold air and keep it at a constant cold temperature.
In this way, even if an ordinary container that does not have a cold insulation device is attached to the ordinary container and the cold air is discharged, a cold insulation container that maintains a constant cold temperature is completed. .
[0011]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, the present invention is attached to a lid 310 of a cold box 300, which is an ordinary container, and dry ice 50 is used as a cold storage material. An example of maintaining the temperature uniformly at 5 ° C. will be described.
The upper part of the main body container 100 made of styrene foam, which is the casing of the present invention, is an open / close lid 110 that can be opened and closed via a hinge 105, so that the dry ice 50 can be easily taken in and out.
A sirocco fan 200 and a motor 205 are installed in the recess 150 at the center of the bottom of the main body container 100, and the cool air of carbon dioxide gas, which is a sublimation gas of the dry ice 50, is discharged through the shutters 211 to 214. It is discharged from the outlets 231 to 234 on each side via the paths 221 to 224 to the outside of the main body container 100, that is, to the inside of the box cooler 300. The temperature of the inside of the cool box 300 is lowered by the discharged cool air.
The temperature sensors 241 to 244 are installed in the four corners of the east, west, south, and north so as to correspond to the discharge ports 231 to 234 so that the cold air reaches all the corners of the cool box 300. Then, opening / closing of the shutters 211 to 214 and activation / deactivation of the motor 205 are controlled.
Now, it is assumed that the present invention with the dry ice 50 is attached to the lid 310 of the cold box 300 and cold cooling is started. Initially, the temperature inside the cold box 300 is almost the same as the outside air temperature, the temperature sensors 241 to 244 set to operate at -5 ° C. do not operate, all the shutters 211 to 214 open, and the sirocco The fan 200 rotates and continues to discharge cool air from all the discharge ports 231 to 234 to every corner of the cold box 300.
When the west portion reaches −5 ° C., the west temperature sensor 241 operates to close the west shutter 231 and stop the cool air discharge from the west discharge port 231.
When the south portion reaches -5 ° C., the south temperature sensor 242 is activated to close the south shutter 232 and stop the discharge of cold air from the south discharge port 232.
When the east portion reaches −5 ° C., the east temperature sensor 243 is activated to close the east shutter 233 and stop the cool air discharge from the east discharge port 233.
When the north portion reaches −5 ° C., the north temperature sensor 244 is activated to close the north shutter 234 and stop the cool air discharge from the north discharge port 234.
In this way, when all the parts of east, west, south, and north reach −5 ° C., the power of the motor 205 is cut off and the rotation of the sirocco fan 200 is stopped.
With the above-described circumstances, the cold air spreads from the present invention to every corner of the cool box 300 and reaches a cold temperature of -5 ° C.
When the internal temperature of the cool box 300 rises from -5 ° C due to the outside air temperature, either the east, west, south, or north temperature sensor is activated, and the motor 205 is activated to rotate the sirocco fan. The shutter corresponding to the temperature sensor is opened, the discharge of cold air is resumed, and a constant cold temperature of −5 ° C. is maintained.
If the outside air temperature is low, the temperature inside the cool box 300 does not rise, and the temperature continues to drop further than the set temperature of −5 ° C. due to the cool air leaking from the closed shutter, the cool box 300 The outside air supply / discharge valve 350 is opened and closed, and outside air is taken in to maintain a set temperature of −5 ° C.
The outside air supply / discharge valve 310 prevents the carbon dioxide gas, which is the sublimation gas of the dry ice 200, which is the source of cold air, from filling the inside of the cool box 300 to increase the internal pressure and destroy it. It also plays a role as a safety valve.
In the above description, there are four cold air outlets according to the present invention in order to produce a uniform temperature distribution by injecting cold air to the four corners of east, west, south, and north. In a small cool box, one cold air outlet may be used.
Although the main body container is a foamed polystyrene in the description, in reality, it is conceivable to make the main body container durable by, for example, lining the foamed polystyrene with an aluminum plate. Furthermore, if a longer cooling period is required, the present invention may be conceived in which the main body container is a vacuum container such as a thermos bottle and each device for ejecting a cooler is attached to the lid portion.
Since the present invention, which is an apparatus for maintaining cold temperature, and the cold box are separate, the volume of the cold container and the capacity of the cold apparatus are adjusted according to the shape of the object to be cooled as in the past. It is not necessary to decide the specifications and make the whole cold box, and it is very economical because it is only necessary to increase or decrease the quantity of the present invention according to the volume of the cold box [Brief description of the drawings]
FIG. 1 is a perspective view. FIG. 2 is a cross-sectional view. FIG. 3 is a top view with a lid opened.
50 Dry ice 100 Main body container 101 West side temperature sensor connector 102 South side temperature sensor connector 103 East side temperature sensor connector 110 Opening / closing lid 130 Hinge 150 Recess 200 Sirocco fan 205 Motor 211 West side shutter 212 South side shutter 213 East side shutter 214 North side shutter 221 West side discharge path 222 South side outlet 223 East side outlet 224 North side outlet 231 West side outlet 232 South side outlet 233 East side outlet 234 North side outlet 241 West side temperature sensor 242 South side temperature sensor 243 East side temperature sensor 244 North side temperature sensor 300 Cold box 310 Cold box lid 350 External air supply / discharge valve F

Claims (1)

蓄冷材を出し入れするための蓋を有する断熱容器にシャッターとファンとを有する冷気排出口を設けて、蓄冷材から得られた冷気を排出して雰囲気音度を冷温に保つ冷気排出器であって、雰囲気温度を検出する手段と、一定温度に達した際にシャッター及びファンを操作してこの断熱容器内からの冷気の排出と停止を制御する手段とを有してなる冷気排出器A cool air discharger that provides a cool air discharge port having a shutter and a fan to a heat insulating container having a lid for taking in and out a cool storage material, and discharges the cool air obtained from the cool storage material to keep the ambient sound level at a low temperature. A cold air discharger comprising means for detecting the ambient temperature and means for operating the shutter and fan to control the discharge and stop of the cold air from the inside of the heat insulating container when the temperature reaches a certain temperature
JP2003195914A 2003-07-11 2003-07-11 Cold air discharger Pending JP2005030674A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009128386A1 (en) 2008-04-18 2009-10-22 株式会社東芝 Anti-wear member, anti-wear instrument and method of producing anti-wear member
CN102419043A (en) * 2011-12-05 2012-04-18 合肥美的荣事达电冰箱有限公司 Cold accumulation component, drawer component and refrigerator
CN106642875A (en) * 2017-02-15 2017-05-10 广州鲜之源生态冷链技术有限公司 Freshness protection bag with dry ice as cold source

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009128386A1 (en) 2008-04-18 2009-10-22 株式会社東芝 Anti-wear member, anti-wear instrument and method of producing anti-wear member
US20110039068A1 (en) * 2008-04-18 2011-02-17 Kabushiki Kaisha Toshiba Wear resistant member, wear resistant device and method for manufacturing the wear resistant member
CN102419043A (en) * 2011-12-05 2012-04-18 合肥美的荣事达电冰箱有限公司 Cold accumulation component, drawer component and refrigerator
CN106642875A (en) * 2017-02-15 2017-05-10 广州鲜之源生态冷链技术有限公司 Freshness protection bag with dry ice as cold source
CN106642875B (en) * 2017-02-15 2022-07-22 广州鲜之源生态冷链技术有限公司 Fresh-keeping bag using dry ice as cold source

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