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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101619916A (en) | Ice refrigerator | |
CN106196818A (en) | Refrigerator compartment and control system thereof | |
KR20010030294A (en) | Refrigerator | |
JPH11173729A (en) | Refrigerator | |
JP3190381B2 (en) | Cool storage type cool box | |
KR100734896B1 (en) | Cold storage system having a fluid film defroster | |
KR200424088Y1 (en) | Cold storage system having a fluid film defroster | |
KR20130028841A (en) | Refrigerator | |
CN101995134A (en) | Refrigerator | |
JPH11148759A (en) | Refrigerator equipped with two sets of evaporators | |
JPH07318214A (en) | Refrigerator | |
JP2003287331A (en) | Refrigerator | |
CN109595875A (en) | Control method, control device and the refrigerator of refrigerator | |
KR100425114B1 (en) | defrosting method in the refrigerator with 2 evaporators | |
KR100379403B1 (en) | defrosting method in the refrigerator with 2 evaporators | |
JPH06257929A (en) | Refrigerator | |
KR0139222Y1 (en) | Defroster device of a refrigerator | |
JP2002340465A (en) | Refrigerator | |
KR0164765B1 (en) | Refrigerator with cold air conversion apparatus for air curtain | |
JPH06174354A (en) | Heat accumulative type refrigerator | |
JPH03158681A (en) | Low temperature chamber | |
JP3098908B2 (en) | refrigerator | |
JPH04117368U (en) | Cold storage type cold storage | |
JPH0452479A (en) | Cold storage type cold insulation chamber | |
JP2000337750A (en) | Refrigerator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |