JP3190381B2 - Cool storage type cool box - Google Patents
Cool storage type cool boxInfo
- Publication number
- JP3190381B2 JP3190381B2 JP25506991A JP25506991A JP3190381B2 JP 3190381 B2 JP3190381 B2 JP 3190381B2 JP 25506991 A JP25506991 A JP 25506991A JP 25506991 A JP25506991 A JP 25506991A JP 3190381 B2 JP3190381 B2 JP 3190381B2
- Authority
- JP
- Japan
- Prior art keywords
- cold storage
- cooling
- storage plate
- air passage
- refrigerant
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2511—Evaporator distribution valves
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は蓄冷剤を用いて庫内を保
冷する蓄冷型保冷庫に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerative cold storage box that uses a regenerator to keep the inside of the refrigerator cool.
【０００２】[0002]
【従来の技術】近年、生鮮食品の流通におけるトラック
等の配送に小型の蓄冷型保冷庫が使用されてきている。2. Description of the Related Art In recent years, small cold storage refrigerators have been used for delivery of trucks and the like in distribution of fresh foods.
【０００３】以下図３を参照しながら従来の蓄冷型保冷
庫の一例について説明する。例えば、実開平２−２００
８３号公報に於いて知られているような冷却コンテナが
ある。[0003] An example of a less conventional regenerative refrigerator with reference to FIG. 3 will be described. For example, Japanese Utility Model 2-200
There is a cooling container as known in US Pat.
【０００４】その構成としては、保冷庫本体１を冷気吸
込口２と冷気吐出口３を有する断熱区画壁４にて保冷室
５と蓄冷室６に区画し、蓄冷室６内に内部に蓄冷剤が収
容された複数の蓄冷板７が配置され、蓄冷板７と熱交換
的に配設された冷却パイプ８と前記冷却パイプ８と接続
して冷凍サイクルを形成する冷凍機ユニット９と、蓄冷
板７と冷気吐出口３間の風路内に設けた送風機１０と蓄
冷室６外壁部に蓄冷室６内の蓄冷板７に散水する散水口
１１を配置しているものである。The cold storage main body 1 is divided into a cold storage room 5 and a cold storage room 6 by a heat insulating partition wall 4 having a cool air suction port 2 and a cool air discharge port 3. A plurality of regenerator plates 7 accommodating the regenerative plate, a cooling pipe 8 disposed in heat exchange with the regenerator plate 7, a refrigerator unit 9 connected to the cooling pipe 8 to form a refrigerating cycle, and a regenerator plate An air blower 10 provided in an air passage between the cooling air outlet 7 and the cold air outlet 3, and a water spouting port 11 for watering the cold storage plate 7 in the cold storage chamber 6 are arranged on the outer wall of the cold storage chamber 6.
【０００５】輸送中の保冷室５の冷却は、予め冷凍機ユ
ニット９を運転し冷却パイプ８により凍結させた蓄冷板
７の冷熱源を利用し蓄冷板７で熱交換された冷気を送風
機１０にて保冷室５に送風し冷却するものである。Cooling of the cool storage room 5 during transportation is performed by operating the refrigerator unit 9 in advance and utilizing the cold heat source of the cold storage plate 7 frozen by the cooling pipe 8 to transfer the cool air exchanged by the cold storage plate 7 to the blower 10. The air is sent to the cold storage room 5 for cooling.
【０００６】そして連続して使用していると蓄冷板７の
外周に付く霜が増加してくるので、定期的に散水口１１
にホースなどの注水手段を連結し、蓄冷板７に散水して
蓄冷板７に付着した霜を除霜するものである。散水され
た水は下面に設けられた排水口１２より排出される。[0006] Since the frost on the outer periphery of the cold storage plate 7 increases when the water storage port 7 is used continuously, the water spout 11
Is connected to a water injection means such as a hose, and water is sprayed on the cold storage plate 7 to remove frost adhering to the cold storage plate 7. The sprinkled water is discharged from a drain port 12 provided on the lower surface.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、蓄冷板の冷熱源を通常の冷却時にも使用す
るので夏場などの湿度の高い環境条件では蓄冷板の凍結
率が低下し、かつ凍結時間が長くなるという欠点があっ
た。また蓄冷板の外周に多くの霜がつき、冷却性能が低
下するので頻繁に水洗い除霜する必要があった。However, in the above-mentioned conventional construction, the cooling source of the cold storage plate is used even during normal cooling, so that the freezing rate of the cold storage plate is reduced and the freezing rate of the cold storage plate is reduced in a high humidity environment such as in summer. There was a disadvantage that the time was long. Further, since much frost is formed on the outer periphery of the cold storage plate and the cooling performance is reduced, it is necessary to wash and defrost frequently with water.
【０００８】また、水洗い除霜は蓄冷板に蓄えられた冷
熱源を保冷に使用することなく保冷室５外に捨てること
になると共に、必要以上に蓄冷板の温度を上昇させるの
で再凍結するのに余分な冷凍能力を必要とするので消費
電力の増加につながる原因となっていた。[0008] In addition, in the washing and defrosting, the cold heat source stored in the cold storage plate is discarded out of the cold storage room 5 without being used for cooling, and the temperature of the cold storage plate is raised more than necessary, so that the freezing is performed again. Requires extra refrigeration capacity, leading to an increase in power consumption.
【０００９】本発明は上記課題を解決するもので夏場で
も蓄冷板を短時間で確実に凍結できるようにすると共
に、蓄冷板への着霜量を減少させ、かつ蓄冷板の冷熱源
を有効に冷却に利用できる水洗い除霜の不要な蓄冷型保
冷庫を提供するものである。The present invention has been made to solve the above-mentioned problems, so that the cold storage plate can be reliably frozen in a short time even in summer, the amount of frost on the cold storage plate is reduced, and the cold heat source of the cold storage plate is effectively used. An object of the present invention is to provide a regenerative cold storage that does not require water washing and defrosting that can be used for cooling.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するため
本発明の蓄冷型保冷庫は、保冷庫を冷凍室と冷蔵室に断
熱区画壁で区画し、冷凍室内に設けた冷却室内に冷却器
と送風ファンを内装し、断熱区画壁内に区画壁をかえし
て冷凍室と冷却室と連通する送風通路Ａと、冷蔵室と冷
却室を連通する送風通路Ｂを設け、送風通路Ｂ内に冷却
パイプを有する蓄冷板を内装し、蓄冷板を凍結させると
きに送風通路Ｂを閉路する風路切り替え手段を備えてな
るものである。In order to solve the above-mentioned problems, a regenerative cold storage according to the present invention is provided. And a ventilation fan, and a ventilation passage A communicating between the freezing room and the cooling room and a ventilation passage B communicating between the refrigerating room and the cooling room are provided in the heat insulation division wall by changing the partition wall. A cold storage plate having a pipe is provided therein, and air passage switching means for closing the air passage B when the cold storage plate is frozen is provided.
【００１１】また蓄冷板の除霜時は蓄冷板の冷却パイプ
への冷媒の流れを停止すると共に風路切り替え手段で送
風通路Ａと送風通路Ｂを区画し、送風通路Ａに冷凍室の
冷気を送風通路Ｂに冷蔵室の冷気を流すようにしたもの
である。When the cold storage plate is defrosted, the flow of the refrigerant to the cooling pipe of the cold storage plate is stopped, and the air passage switching means separates the air passage A and the air passage B. The cool air in the refrigerating compartment flows through the air passage B.
【００１２】[0012]
【作用】本発明は上述したような構成によって、通常冷
却は冷却器を使用し、蓄冷板の凍結は区画された送風通
路Ｂ内で行うため、夏場などの温度の高いときでも蓄冷
板への着霜が防止でき、短時間で確実に凍結することが
できる。According to the present invention, since the cooling is normally performed using the cooler and the freezing of the cold storage plate is performed in the divided ventilation passage B, the cooling to the cold storage plate is performed even when the temperature is high such as in summer. Frost formation can be prevented and freezing can be ensured in a short time.
【００１３】また、除霜時は冷蔵室の吸い込み冷気で蓄
冷板の除霜を行うので蓄冷板の冷熱源を有効に冷却に利
用できるとともに水洗い除霜を不要とすることができ
る。Further, at the time of defrosting, since the cold storage plate is defrosted by the cold air sucked into the refrigerator compartment, the cold heat source of the cold storage plate can be effectively used for cooling, and the washing and defrosting is not required.
【００１４】[0014]
【実施例】以下本発明の一実施例について図面を参照し
ながら説明する。An embodiment of the present invention will be described below with reference to the drawings.
【００１５】図１は、本発明の一実施例における蓄冷型
保冷庫の縦断面図を示す。図１において、１３は保冷庫
本体で、断熱区画壁１４により冷凍室１５と冷蔵室１６
とに区画している。１７は冷凍室のドア、１８は冷蔵室
のドアである。FIG. 1 is a longitudinal sectional view of a cool storage type cold storage according to one embodiment of the present invention. In FIG. 1, reference numeral 13 denotes a cool box main body.
And divided into Reference numeral 17 denotes a door of a freezer compartment, and reference numeral 18 denotes a door of a refrigerator compartment.
【００１６】１９は冷凍室１５内に設けた冷却室で冷却
室１９内には冷却器と送風ファン２１を内装している。Reference numeral 19 denotes a cooling room provided in the freezing room 15, in which a cooling device and a blower fan 21 are provided.
【００１７】断熱区画壁１４内には区画壁２２をかえし
て、冷凍室吸い込み口２３と冷却室１９を連通する送風
通路Ａ２１と、冷蔵室吸い込み口２４と冷却室１９を連
通する送風通路Ｂ２５を形成している。２６は送風通路
Ｂ２５内に内装した蓄冷板で、蓄冷板２６には冷却パイ
プ２７を熱交換的に配設している。In the heat insulating partition wall 14, a partition wall 22 is changed to form a ventilation passage A 21 connecting the freezing room suction port 23 and the cooling chamber 19, and a ventilation path B 25 connecting the refrigerating room suction port 24 and the cooling chamber 19. Has formed. Reference numeral 26 denotes a cold storage plate provided inside the ventilation passage B25, and a cooling pipe 27 is disposed on the cold storage plate 26 in a heat exchange manner.
【００１８】２８は風路切り替え手段で冷凍室吸込口２
３と冷蔵室吸込口２４側の区画壁２２部に設けている。
風路切り替え手段２８は送風通路Ａ２１を閉路する２８
ａと、送風通路Ｂ２５を閉路する２８ｂと、送風風路Ａ
２１と送風通路Ｂ２２を区画する２８Ｃの３段階に切り
替えるものである。また電源が切れているときに２８ａ
の状態になり、電源が入ったとき２８ｂおよび２８ｃに
切り替えるようにしている。Numeral 28 denotes an air path switching means for the freezer compartment suction port 2.
3 and the compartment wall 22 on the side of the refrigerator compartment suction port 24.
The air passage switching means 28 closes the air passage A21.
a, the air passage B25 is closed, and the air passage A
21 and 28C which divides the air passage B22. 28a when the power is off
And switches to 28b and 28c when the power is turned on.
【００１９】２９はダンパーサーモで、送風ファン２１
により冷蔵室用吐出送風通路３０に送風された冷気の冷
蔵室１６への吐出送風量を調整し、冷蔵室１６を所定の
温度に制御するものである。Reference numeral 29 denotes a damper thermometer,
Thus, the amount of cool air blown into the refrigerator compartment discharge air passage 30 to the refrigerator compartment 16 is adjusted to control the refrigerator compartment 16 to a predetermined temperature.
【００２０】３０は機械室で、機械室内には圧縮機３１
と凝縮器３２と凝縮器用送風機３３と輸送時など電源が
きれたときに送風ファンの電源として使用するバッテリ
ー３４を内装している。Reference numeral 30 denotes a machine room, and a compressor 31 is provided in the machine room.
, A condenser 32, a condenser blower 33, and a battery 34 used as a power supply of a blower fan when the power supply is turned off such as during transportation.
【００２１】図２は本発明の一実施例における蓄冷型保
冷庫の冷凍システム図を示す。圧縮機３１と凝縮器３２
と第一の減圧器３５と冷却器２０を順次接続して通常冷
却時の冷凍サイクルを形成している。３６は第二の減圧
器で蓄冷板２６と熱交換的に配設された冷却パイプ２７
で、第一の減圧器３５と冷却器２０を接続した直列回路
と並列になるように接続している。３７は冷媒回路切り
替え手段で、冷却器２０と冷却パイプ２６への冷媒の流
れを切り替えるものである。FIG. 2 is a refrigeration system diagram of a cold storage type cold storage according to one embodiment of the present invention. Compressor 31 and condenser 32
And the first decompressor 35 and the cooler 20 are sequentially connected to form a refrigeration cycle during normal cooling. Numeral 36 denotes a second decompressor, a cooling pipe 27 provided in heat exchange with the cold storage plate 26.
Thus, the first pressure reducer 35 and the cooler 20 are connected in parallel with a series circuit connecting the first pressure reducer 35 and the cooler 20. 37 is a refrigerant circuit switching means for switching the flow of the refrigerant to the cooler 20 and the cooling pipe 26.
【００２２】以上の様に構成された蓄冷型保冷庫におい
て、以下その動作について説明する。The operation of the regenerative cold storage constructed as described above will be described below.
【００２３】まず基地などで運転する場合について説明
する。商用電源に接続して圧縮機３１を運転し、圧縮機
３１、凝縮器３２、第一の減圧器３５、冷却器２０、か
らなる冷凍サイクルを形成し、冷却器２０で冷却された
冷気を送風ファン２１で冷凍室１５および冷蔵室１６に
送風し、冷凍室１５と冷蔵室１６を所定の温度に冷却す
る。First, the case of driving at a base or the like will be described. The compressor 31 is operated by being connected to a commercial power supply, and a refrigeration cycle including the compressor 31, the condenser 32, the first decompressor 35, and the cooler 20 is formed, and the cool air cooled by the cooler 20 is blown. The fan 21 blows air to the freezer compartment 15 and the refrigerator compartment 16 to cool the freezer compartment 15 and the refrigerator compartment 16 to a predetermined temperature.
【００２４】このとき風路切り替え手段は２８ｂに切り
替えており、送風通路Ｂが閉路されているので冷凍室吸
込口２３および冷蔵室吸い込み口２４より流入する冷気
は送風通路Ａを通り、冷却室１９に入り冷却器２０で冷
却される。At this time, the air passage switching means is switched to 28b, and since the air passage B is closed, the cool air flowing in from the freezing room suction port 23 and the refrigerating room suction port 24 passes through the air passage A and the cooling chamber 19. And cooled by the cooler 20.
【００２５】次に冷凍室１５および冷蔵室１６が所定の
温度まで冷却されると冷媒切り替え手段３７で冷却器２
０への冷媒流入を停止し、冷却パイプ２６側に冷媒を流
し蓄冷板２６を凍結する。そして冷凍室１５および冷蔵
室１６の温度が所定温度より上昇すると冷媒回路切り替
え手段３７で冷媒回路を切り替え冷却パイプ２７への冷
媒流入を停止し、冷却器２０に冷媒をながす。Next, when the freezing room 15 and the refrigerating room 16 are cooled to a predetermined temperature, the cooling device 2
The flow of the refrigerant into the cooling pipe 26 is stopped, and the refrigerant is caused to flow toward the cooling pipe 26 to freeze the cold storage plate 26. When the temperatures of the freezing compartment 15 and the refrigerating compartment 16 rise above a predetermined temperature, the refrigerant circuit is switched by the refrigerant circuit switching means 37 to stop the refrigerant from flowing into the cooling pipe 27 and the refrigerant flows into the cooler 20.
【００２６】以上の動作を繰り返し冷凍室１５と冷蔵室
１６の冷却と蓄冷板２６の凍結を行う。蓄冷板２６を凍
結するときは送風ファンを停止させ圧縮機３１の冷凍能
力を蓄冷板２６の凍結のみに使用できるので蒸発温度を
低下させることができ、蓄冷板の凍結時間を短くするこ
とができる。また凍結運転中は蓄冷板２６と冷凍室１５
および冷蔵室１６の吸い込み冷気が蓄冷板２６を通過し
ないので、凍結した蓄冷板２６が解けて凍結率が低下し
たり、蓄冷板２６に着霜するのを防止できる。The above operation is repeated to cool the freezer compartment 15 and the refrigerator compartment 16 and freeze the cold storage plate 26. When freezing the cold storage plate 26, the blower fan is stopped and the refrigerating capacity of the compressor 31 can be used only for freezing the cold storage plate 26, so that the evaporation temperature can be lowered and the freezing time of the cold storage plate can be shortened. . During the freezing operation, the cold storage plate 26 and the freezer compartment 15
In addition, since the cold air sucked into the refrigerator compartment 16 does not pass through the cold storage plate 26, it is possible to prevent the frozen cold storage plate 26 from melting and lowering the freezing rate and preventing the cold storage plate 26 from being frosted.
【００２７】次に輸送時の保冷運転について説明する。
まず商用電源をはずし保冷庫本体１３を移動させトラッ
クなどにのせて目的地まで輸送する。Next, the cooling operation during transportation will be described.
First, the commercial power supply is removed, and the cool box main body 13 is moved to be mounted on a truck or the like and transported to the destination.
【００２８】輸送中は風路切り替え手段２８が２８ａに
切り替わっており送風通路Ａは閉路されている。また送
風ファンはバッテリー３４の電源により運転できるよう
に構成されている。従って輸送中は冷凍室１５と冷蔵室
１６の冷気は送風通路Ｂを通り蓄冷板２６で冷却されて
送風ファン２１により冷凍室１５および冷蔵室１６に送
風され、冷凍室１５および冷蔵室１６を所定の温度に冷
却保冷する。During transportation, the air passage switching means 28 is switched to 28a, and the air passage A is closed. Further, the blower fan is configured to be operated by the power supply of the battery 34. Therefore, during transportation, the cool air in the freezer compartment 15 and the refrigerator compartment 16 passes through the air passage B and is cooled by the cold storage plate 26 and is blown to the freezer compartment 15 and the refrigerator compartment 16 by the blower fan 21, and the freezer compartment 15 and the refrigerator compartment 16 are cooled to a predetermined temperature. Keep cool to the temperature.
【００２９】次に蓄冷板２６の除霜について説明する。
輸送が終了したあと基地などで凍結運転を行うため商用
電源に接続し圧縮機３１を運転し、圧縮機３１、凝縮器
３２、第一の減圧器３５、冷却器２０、からなる冷凍サ
イクルを形成し、冷却器２０で冷却された冷気を送風フ
ァン２１で冷凍室１５および冷蔵室１６に送風し、冷凍
室１５と冷蔵室１６を所定の温度に冷却する。Next, defrosting of the cold storage plate 26 will be described.
After the transportation is completed, the compressor 31 is operated by connecting to a commercial power supply to perform a freezing operation at a base or the like, and a refrigeration cycle including the compressor 31, the condenser 32, the first decompressor 35, and the cooler 20 is formed. Then, the cool air cooled by the cooler 20 is blown to the freezing room 15 and the refrigerating room 16 by the blower fan 21 to cool the freezing room 15 and the refrigerating room 16 to a predetermined temperature.
【００３０】このとき風路切り替え手段２８は２８ｃに
切り替わって送風通路Ａと送風通路Ｂを区画している。
従って冷凍室１５吸い込み冷気は送風通路Ａを通って冷
却室１９に入り、冷却器２０で冷却される。そして冷蔵
室１６の冷気は送風通路Ｂを通って蓄熱板２６と熱交換
し冷却除湿されて冷却室１９に入る。At this time, the air passage switching means 28 is switched to 28c to partition the air passage A and the air passage B.
Therefore, the cold air sucked into the freezing room 15 enters the cooling room 19 through the air passage A and is cooled by the cooler 20. Then, the cool air in the refrigerator 16 passes through the air passage B and exchanges heat with the heat storage plate 26, is cooled and dehumidified, and enters the cooling chamber 19.
【００３１】そして蓄冷板２６が完全に融解したあと風
路切り替え手段を２８ｂに切り替え冷媒切り替え手段３
７にて冷却器２０と冷却パイプ２６の切り替えを制御
し、冷凍室１５と冷蔵室１６の冷却と蓄冷板２６の凍結
を行うものである。After the cold storage plate 26 is completely melted, the air passage switching means is switched to 28b and the refrigerant switching means 3
The switching of the cooler 20 and the cooling pipe 26 is controlled by 7 to cool the freezing room 15 and the refrigerating room 16 and freeze the cold storage plate 26.
【００３２】従って蓄冷板２６に着霜した霜や凍結して
いる冷熱源を有効に保冷庫本体１３の冷却に利用できる
ので消費電力の低減が図れるとともに水洗い除霜を不要
とすることができる。Accordingly, since the frost formed on the cold storage plate 26 or the frozen cold heat source can be effectively used for cooling the cool box body 13, power consumption can be reduced and washing and defrosting can be made unnecessary.
【００３３】以上の様に本実施例によれば保冷庫本体１
３を冷凍室１５と冷蔵室１６に断熱区画壁１４で区画
し、冷凍室１５内に設けた冷却室１９内に冷却器２０と
送風ファン２１を内装し、断熱区画壁１４内に区画壁２
２をかえして冷凍室１５と冷却室１９を連通する送風通
路Ａ２１と、冷蔵室１６と冷却室１９を連通する送風通
路Ｂ２５を設け、送風通路Ｂ２５内に冷却パイプ２７を
有する蓄冷板２６を内装し、蓄冷板２６を凍結させると
きに送風通路Ｂ２５を閉路する風路切り替え手段２８
と、通常冷却時は冷却器２０のみに冷媒を流し、凍結運
転時は冷却パイプ２７のみに冷媒を流す冷媒切り替え手
段を備えたものである。As described above, according to the present embodiment, the refrigerator main body 1
3 is divided into a freezer compartment 15 and a refrigerator compartment 16 by a heat insulating partition wall 14, a cooler 20 and a blower fan 21 are installed in a cooling room 19 provided in the freezer compartment 15, and the partition wall 2 is placed in the heat insulating partition wall 14.
2, a ventilation passage A21 communicating the freezing room 15 and the cooling room 19 and a ventilation passage B25 communicating the refrigeration room 16 and the cooling room 19 are provided, and a regenerator plate 26 having a cooling pipe 27 in the ventilation passage B25 is provided. Air passage switching means 28 which closes the air passage B25 when the cold storage plate 26 is frozen.
And a refrigerant switching means for flowing refrigerant only to the cooler 20 during normal cooling and flowing refrigerant only to the cooling pipe 27 during freezing operation.
【００３４】このことにより、蓄冷板２６を凍結すると
きは送風ファンを停止させ圧縮機３１の冷凍能力を蓄冷
板２６の凍結のみに使用できるので蒸発温度を低下させ
ることができ、蓄冷板の凍結時間を短くすることができ
る。また凍結運転中は蓄冷板２６と冷凍室１５および冷
蔵室１６の吸い込み冷気が蓄冷板２６を通過しないの
で、凍結した蓄冷板２６が解けて凍結率が低下したり、
蓄冷板２６に着霜するのを防止できる。With this arrangement, when freezing the cold storage plate 26, the blower fan is stopped and the refrigerating capacity of the compressor 31 can be used only for freezing the cold storage plate 26, so that the evaporation temperature can be reduced, and the freezing of the cold storage plate can be prevented. Time can be shortened. Further, during the freezing operation, since the cold air sucked from the cold storage plate 26 and the freezer compartment 15 and the refrigerator compartment 16 does not pass through the cold storage plate 26, the frozen cold storage plate 26 is thawed and the freezing rate decreases,
It is possible to prevent frost on the cold storage plate 26.
【００３５】また蓄冷板２６の除霜時に蓄冷板２６の冷
却パイプ２７への冷媒の流れを停止する冷媒制御手段２
７と、送風通路Ａ２１と送風通路Ｂ２５を区画し、送風
通路Ａ２１に冷凍室１５の冷気を、送風通路Ｂ２５に冷
蔵室１６の冷気を流すようにした風路切り替え手段２８
を備えたものである。A refrigerant control means 2 for stopping the flow of the refrigerant to the cooling pipe 27 of the cold storage plate 26 when the cold storage plate 26 is defrosted.
7 and an air passage switching means 28 which divides the air passage A21 and the air passage B25 so that the cool air of the freezing room 15 flows through the air passage A21 and the cool air of the refrigerator compartment 16 flows through the air passage B25.
It is provided with.
【００３６】このことにより蓄冷板２６に着霜した霜や
凍結している冷熱源を有効に保冷庫本体１３の冷却に利
用できるので消費電力の低減が図れるとともに水洗い除
霜を不要とすることができる。As a result, the frost formed on the cold storage plate 26 or the frozen heat source can be effectively used for cooling the cool box body 13, so that the power consumption can be reduced and the need for washing and defrosting with water is eliminated. it can.
【００３７】[0037]
【考案の効果】以上の様に本発明は保冷庫を冷凍室と冷
蔵室に断熱区画壁で区画し、冷凍室内に設けた冷却室内
に冷却器と送風ファンを備え、前記断熱区画壁内に区画
壁をかえして冷凍室と冷却室を連通する送風通路Ａと、
冷蔵室と冷却室を連通する送風通路Ｂを設け、前記送風
通路Ｂに冷却パイプを有する蓄冷板を内装し、送風通路
Ａと送風通路Ｂとを切り替える風路切り替え手段と、冷
却器と蓄冷板の冷却パイプへの冷媒の流れを切り替える
冷媒回路切り替え手段を備え、凍結運転時は送風通路Ｂ
を閉路し、保冷庫が所定の温度以下の時のみ冷却パイプ
に冷媒を流すことものであるから蓄冷板を凍結するとき
は送風ファンを停止させ圧縮機の冷凍能力を蓄冷板の凍
結のみに使用できるので蒸発温度を低下させることがで
き、蓄冷板の凍結時間を短くすることができる。As described above, according to the present invention, the cool box is divided into a freezer compartment and a refrigerator compartment by a heat insulating partition wall, and a cooler and a blower fan are provided in the cooling compartment provided in the freezer compartment. A ventilation passage A for communicating the freezing room and the cooling room by changing the partition wall;
An air passage B communicating the refrigerating chamber with the cooling chamber, a cold storage plate having a cooling pipe in the air passage B, a wind path switching means for switching between the air passage A and the air passage B, a cooler and a cold storage plate Circuit switching means for switching the flow of the refrigerant to the cooling pipe of
When the freezer is frozen, stop the blower fan and use the compressor's refrigerating capacity only to freeze the cooler when the cooler is frozen. Therefore, the evaporation temperature can be reduced, and the freezing time of the cold storage plate can be shortened.
【００３８】また凍結運転中は蓄冷板と冷凍室および冷
蔵室の吸い込み冷気が蓄冷板を通過しないので、凍結し
た蓄冷板が解けて凍結率が低下したり、蓄冷板に着霜す
るのを防止できる。Further, during the freezing operation, since the cold air sucked from the cold storage plate and the freezing compartment and the cold storage room does not pass through the cold storage plate, it is possible to prevent the frozen cold storage plate from being thawed to lower the freezing rate and to prevent the cold storage plate from being frosted. it can.
【００３９】また蓄冷板の除霜時に蓄冷板の冷却パイプ
への冷媒の流れを停止する冷媒制御手段と、送風通路Ａ
と送風通路Ｂを区画し送風通路Ａに冷凍室の冷気を送風
通路Ｂに冷蔵室の冷気を流す風路切り替え手段を備え、
冷蔵室の吸い込み冷気で蓄冷板に着霜した霜や凍結して
いる冷熱源を融解させて有効に保冷庫本体の冷却に利用
できるので消費電力の低減が図れるとともに水洗い除霜
を不要とすることができる。A refrigerant control means for stopping the flow of the refrigerant to the cooling pipe of the cold storage plate during the defrosting of the cold storage plate;
Air passage switching means for dividing the cooling air in the freezer compartment into the ventilation passage A and dividing the cooling air into the cooling passage through the ventilation passage B,
The frost formed on the cold storage plate or the frozen cold heat source is melted by the cold air sucked into the refrigerator compartment, which can be used effectively for cooling the cold storage box.This reduces power consumption and eliminates the need for washing and defrosting. Can be.
【図１】本発明の一実施例の蓄冷型保冷庫本体の縦断面
図FIG. 1 is a longitudinal sectional view of a cold storage type cool box main body according to one embodiment of the present invention.
【図２】図１の蓄冷型保冷庫の冷凍システム図FIG. 2 is a refrigeration system diagram of the cold storage type cold storage of FIG. 1;
【図３】従来の蓄冷型保冷庫の要部縦断面図FIG. 3 is a longitudinal sectional view of a main part of a conventional cool storage type cold storage box.
１４ 断熱区画壁 ２２ 区画壁 ２１ 送風通路Ａ ２５ 送風通路Ｂ ２６ 蓄冷板 ２８ 風路切り替え手段 ３７ 冷媒回路切り替え手段 Reference Signs List 14 heat insulation partition wall 22 partition wall 21 ventilation passage A 25 ventilation passage B 26 cold storage plate 28 air passage switching means 37 refrigerant circuit switching means
Claims (2)
区画し、冷凍室内に設けた冷却室内に冷却器と送風ファ
ンを備え、前記断熱区画壁内に区画壁をかえして冷凍室
と冷却室を連通する送風通路Ａと、冷蔵室と冷却室を連
通する送風通路Ｂを設け、前記送風通路Ｂに冷却パイプ
を有する蓄冷板を内装し、送風通路Ａと送風通路Ｂとを
切り替える風路切り替え手段と、冷却器と蓄冷板の冷却
パイプへの冷媒の流れを切り替える冷媒回路切り替え手
段を備え、凍結運転時は送風通路Ｂを閉路し、保冷庫が
所定の温度以下の時のみ冷却パイプに冷媒を流すことを
特徴とする蓄冷型保冷庫。An insulated partition is defined by a heat insulation compartment in a freezer compartment and a refrigerator compartment, and a cooler and a blower fan are provided in the cooling compartment provided in the freezer compartment. A cooling air passage B communicating the cooling chamber with the cooling chamber is provided. A cooling storage plate having a cooling pipe is provided in the cooling air passage B, and the cooling passage A and the cooling air passage B are switched. Air passage switching means, and a refrigerant circuit switching means for switching the flow of the refrigerant to the cooling pipe of the cooler and the cold storage plate, closing the ventilation passage B during freezing operation, cooling only when the cool box is below a predetermined temperature A regenerative cold storage characterized by flowing a refrigerant through a pipe.
の冷媒の流れを停止する冷媒制御手段と送風通路Ａと送
風通路Ｂを区画し、送風通路Ａに冷凍室の冷気を送風通
路Ｂに冷蔵室の冷気を流す風路切り替え手段を備えたこ
とを特徴とする請求項１記載の蓄冷型保冷庫。2. A refrigerant control means for stopping the flow of the refrigerant to the cooling pipe of the cold storage plate when the cold storage plate is defrosted, a ventilation passage A and a ventilation passage B, and the cooling air in the freezer compartment is supplied to the ventilation passage A. 2. The cold storage type cold storage according to claim 1, further comprising an air passage switching means for flowing cold air from the refrigerator compartment in B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25506991A JP3190381B2 (en) | 1991-10-02 | 1991-10-02 | Cool storage type cool box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25506991A JP3190381B2 (en) | 1991-10-02 | 1991-10-02 | Cool storage type cool box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05215452A JPH05215452A (en) | 1993-08-24 |
| JP3190381B2 true JP3190381B2 (en) | 2001-07-23 |
Family
ID=17273707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25506991A Expired - Fee Related JP3190381B2 (en) | 1991-10-02 | 1991-10-02 | Cool storage type cool box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3190381B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848633A (en) * | 2015-04-17 | 2015-08-19 | 南京祥源动力供应有限公司 | Energy-saving chilled water supply device |
-
1991
- 1991-10-02 JP JP25506991A patent/JP3190381B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05215452A (en) | 1993-08-24 |
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