JPS6262170A - Cooling system of refrigerator - Google Patents

Cooling system of refrigerator

Info

Publication number
JPS6262170A
JPS6262170A JP20308285A JP20308285A JPS6262170A JP S6262170 A JPS6262170 A JP S6262170A JP 20308285 A JP20308285 A JP 20308285A JP 20308285 A JP20308285 A JP 20308285A JP S6262170 A JPS6262170 A JP S6262170A
Authority
JP
Japan
Prior art keywords
cooling
refrigerator
comparator
load
cooled
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.)
Pending
Application number
JP20308285A
Other languages
Japanese (ja)
Inventor
鶴身 学
日野 守雄
盛和 溝田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Iseki and Co Ltd, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP20308285A priority Critical patent/JPS6262170A/en
Publication of JPS6262170A publication Critical patent/JPS6262170A/en
Pending legal-status Critical Current

Links

Landscapes

  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産業−1−の利用分野 この発明は、冷蔵庫の冷却方式に関し、予冷保冷庫、冷
凍庫等に利用できるものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Application of Industry-1- The present invention relates to a cooling system for a refrigerator, and can be used in pre-cooled refrigerators, freezers, and the like.

従来の技術、および発明が解決しようとする問題点 例えば、青果物の予冷保冷庫等において、断熱壁で囲わ
れた一室の冷却室に対して、この冷却室に収容冷却でき
る最大量の被冷却物を冷却できる能力の一台の冷凍機が
冷媒ガスを圧縮液化し、この液化ガスを単数乃至は複数
の冷却器に設ける蒸発器とファンで室内空気を液化ガ、
スの気化潜熱で冷却して室内を循環させて被冷却物を冷
却するこの−台の冷凍機と単数乃至は複数の冷却器を組
合せた一式の冷却装置を一室に一式設けて冷却していた
。しかし、青果物の予冷保冷においては、収容量や品種
作目の変動が大きく、収容量が少なかったり、あるいは
冷却しなければならない温度差が少ない所謂、冷却負荷
が低負荷の場合でも負荷に対して大きな能力の冷凍機を
運転する動力の無駄があった。これに対して冷却器のフ
ァンや、別に設ける室内空気循環用のファンを一時停止
させる技術はあったが、大きな動力低減の効果はなかっ
た・ 問題点を解決するための手段 この発明は、冷蔵室(1)の室内空気を冷却する複数の
夫々冷却能力差を有する冷却装置(2)(3)・・・を
、設定される冷却条件に応じた冷却能力及び冷却時間に
選択して冷却することを特徴とする冷蔵庫の冷却方式の
構成とした。
Conventional technology and problems to be solved by the invention For example, in a pre-cooled refrigerator for fruits and vegetables, etc., in a cooling chamber surrounded by an insulated wall, the maximum amount of cooled material that can be stored and cooled in this cooling chamber is A single refrigerator with the capacity to cool objects compresses and liquefies refrigerant gas, and uses the evaporator and fan installed in one or more coolers to liquefy indoor air.
A set of cooling equipment, which combines two refrigerators and one or more coolers, is installed in one room to cool the object. Ta. However, in the case of pre-cooling and storage of fruits and vegetables, the storage capacity and variety of crops vary widely, and even when the storage capacity is small or the temperature difference that must be cooled is small, so-called low cooling load, it is difficult to keep up with the load. There was a waste of power to operate a large-capacity refrigerator. To solve this problem, there was a technology to temporarily stop the cooler fan or a separate fan for indoor air circulation, but it did not have a large power reduction effect. A plurality of cooling devices (2), (3), etc. each having a different cooling capacity for cooling the indoor air in the room (1) are selected to have cooling capacities and cooling times according to set cooling conditions. The structure of the refrigerator cooling system is characterized by this.

発明の作用、および効果 冷蔵室(1)に被冷却物を収容し、冷却前の被冷却物の
平均品温、種類によって決る最終冷却目標温度、冷却開
始から目標温度に下げるまでの予定時間、冷却空気の温
度等の冷却条件を設定し、この冷却条件に応じた冷却偉
力、即ち、複数の夫々冷却能力差を有する冷却装置(2
)(3)・・・をこれら夫々を単独か複数の組合せでで
きる冷凍能力の大きさ別段階とこれら段階別の冷却時間
を効率のよい動力使用で冷却できるように選択して冷却
するものである。
Functions and Effects of the Invention The objects to be cooled are stored in the refrigerator compartment (1), the average temperature of the objects to be cooled before cooling, the final cooling target temperature determined by the type, the scheduled time from the start of cooling until the temperature is lowered to the target temperature, Cooling conditions such as the temperature of the cooling air are set, and cooling power is determined according to the cooling conditions, that is, a plurality of cooling devices (2
) and (3)... are selected individually or in combination for each stage of refrigerating capacity and the cooling time for each stage so that cooling can be performed with efficient use of power. be.

複数の冷却装置(2)(3)・・・の冷却能力の総和は
、冷蔵室(1)の大きさに対して全負荷の冷却物を一式
の冷却装置で冷却していた場合の冷却能力と同等でよい
ものであるから、この発明の冷却方式によって冷却する
と、冷却経過段階毎の負荷に合った冷却装置(2)(3
)・・・を運転して冷却するので動力低減効果があり、
且、小刻みの温度制御ができて均一な冷却ができるので
よい。
The total cooling capacity of multiple cooling devices (2), (3)... is the cooling capacity when the entire load of refrigerated items is cooled by one set of cooling devices for the size of the refrigerator compartment (1). Therefore, when cooling with the cooling method of this invention, the cooling device (2) (3) suitable for the load at each cooling progress stage can be used.
)... to cool it down, which has the effect of reducing power.
Moreover, it is good because the temperature can be controlled in small steps and uniform cooling can be achieved.

実施例 尚、図例において冷蔵室(1)は、床面(4)、四周壁
面(5)、天井面(6)を夫々断熱材で構成し、−側壁
面(5)には出入口扉(7)を設ける青果物予冷庫を例
示している。
Embodiment In the illustrated example, the refrigerator compartment (1) has a floor (4), peripheral walls (5), and ceiling (6) each made of heat insulating material, and a side wall (5) is provided with an entrance/exit door ( 7) is shown as an example of a fruit and vegetable pre-cooling warehouse.

冷却装置(2)(3)・・・は、冷却装置(2)と(3
)との2式とし、冷却器21 (2)は、冷凍機(8)
に対して2台の冷却器(9)  (10)を組合せ、ま
た冷却装置(3)は冷凍ij&(11)に対して2台の
冷却器(12)  (13)を組合せて構成している。
Cooling devices (2) (3)... are cooling devices (2) and (3).
), and the cooler 21 (2) is the refrigerator (8).
The cooling device (3) is configured by combining two coolers (9) (10) for the refrigerator, and the cooling device (3) is configured by combining two coolers (12) (13) for the refrigerator (11). .

冷凍機(8)  (11)は、冷媒ガスを圧縮して液化
し、このとき発生する熱を外気中に放熱すべく室(1)
外の一側壁面(5)近傍に配設し、原動モータ、コンプ
レッサ、断熱機等で構成してあり、冷却器(9)  (
10)  (12)  (13)は、冷凍機(8)  
(11)から送る冷媒を蒸発せしめるべき蒸発器と、室
(1)内空毎を吸入して蒸発器の冷却部を通過せしめて
のち、室(1)内に還元循環させるファン、ファンモー
タ等で構成し、冷凍機(8)  (11)から冷媒循環
の配管(14)を連結し、室(1)内−側壁面(5)に
沿う天井面(6)近傍に冷却装置(2)の冷却器(9)
  (10)と冷却装置(3)の冷却器(12)  (
13)とを交互に位置せしめて配設している。
The refrigerator (8) (11) compresses and liquefies the refrigerant gas and radiates the heat generated at this time into the outside air.
It is installed near the outside wall (5) and consists of a driving motor, a compressor, a heat insulator, etc., and a cooler (9) (
10) (12) (13) are refrigerators (8)
An evaporator that evaporates the refrigerant sent from (11), and a fan, fan motor, etc. that sucks in the air inside chamber (1), passes it through the cooling section of the evaporator, and then returns and circulates it within chamber (1). The refrigerant circulation pipe (14) is connected from the refrigerator (8) (11), and the cooling device (2) is installed near the ceiling (6) along the inner side wall (5) of the room (1). Cooler (9)
(10) and the cooler (12) of the cooling device (3) (
13) are arranged alternately.

冷却装置(2)と(3)との冷却偉力は、冷蔵室(1)
の最大収容量の被冷却物を収容してこれを所定時間内に
目標温度まで冷却できる能力、即ち全負荷能力を100
%とした場合、冷却装置(2)を35%能力、冷却装置
(3)を65%能力に設けている。全負荷は理論的には
被冷却物からうばラベき総熱量キロカロリーであり、冷
却装置(2)(3)の冷却能カキロカロリー/時×時間
でうばうものである。
The cooling power of the cooling devices (2) and (3) is the cooling power of the refrigerator compartment (1).
The ability to accommodate the maximum capacity of objects to be cooled and cool them to the target temperature within a predetermined time, that is, the full load capacity is 100.
%, the cooling device (2) is provided at 35% capacity and the cooling device (3) is provided at 65% capacity. The total load is theoretically the total amount of heat kcal from the object to be cooled, and is calculated by the cooling capacity kcal/hour x time of the cooling devices (2) and (3).

冷却装置(2)と(3)との運転制御はCPUを含む制
御回路を構成し、運転切換回路は第3図に示すように構
成している。第3図中、(15)  (1B)は−次比
較器、(17)  (18)  (19)  (20)
は二次比較器、(21)はAND回路、(22)は冷却
装置(2)の運転出力端子、(23)は冷却装置(3)
の運転出力端子、(24)は冷却装置(2)と(3)と
の運転出力端子である。
The operation of the cooling devices (2) and (3) is controlled by a control circuit including a CPU, and the operation switching circuit is configured as shown in FIG. In Figure 3, (15) (1B) is a -order comparator, (17) (18) (19) (20)
is the secondary comparator, (21) is the AND circuit, (22) is the operation output terminal of the cooling device (2), and (23) is the cooling device (3).
(24) is the operation output terminal of the cooling devices (2) and (3).

また、(イ)(ロ)(ハ)は入力情報で、(イ)は冷却
負荷である。冷却負荷(イ)は、冷却装置(2)(3)
を有する冷蔵室(1)の冷却能力を100%とし、これ
に対して冷却前の平均品温、冷却目標温度、予定所要時
間等の打込条件をCPUが演算して冷却開始時点におけ
る負荷を、例えば90%という情報を比較回路に送った
のち、周期的に測定する被冷却物の温度測定値によって
演算する残存負荷%を一次比較器(15)  (1B)
のマイナス側へ入力させるべく構成している。(ロ)は
35%負荷値で比較器(15)のプラス側に連結入力し
ている。(ハ)は65%負荷値で比較器(16)のプラ
ス側に連結入力している。
Also, (a), (b), and (c) are input information, and (a) is the cooling load. Cooling load (a) is cooling device (2) (3)
Assuming that the cooling capacity of the refrigerator compartment (1) with For example, after sending information such as 90% to the comparator circuit, the remaining load % calculated based on the temperature measurement value of the object to be cooled that is periodically measured is sent to the primary comparator (15) (1B).
The configuration is such that input is made to the negative side of . (b) is a 35% load value and is connected and input to the positive side of the comparator (15). (c) is a 65% load value and is connected and input to the positive side of the comparator (16).

第4図は残存負荷の変化乃至は冷却時間の経過に対する
冷却装置(2)(3)の運転動作図で、図中の(ニ)は
ON、(ホ)はOFF、(へ)は負荷100%、(ト)
は65%、(チ)は35%、(す)は0%である。
Figure 4 is a diagram of the operation of the cooling devices (2) and (3) with respect to changes in the remaining load or passage of cooling time. %,(to)
is 65%, (ch) is 35%, and (su) is 0%.

図は100%負荷の被冷却物の場合の図であり、例えば
冷却前65%の負荷の被冷却物の場合は(ト)の位置か
ら冷却開始するものである2冷蔵室(1)の出入口扉(
7)を開いて被冷却物を収容したのち閉じ、被冷却物の
平均温度を測定してCPUに打込むと共にその他の冷却
条件を打込み入力すると、CPUはこれを演算して90
%負荷であるとの情報を比較回路に入力した場合、比較
器(15)においてはマイナス側の90%に対してプラ
ス側の35%とを比較してマイナスの結果がでるのでプ
ラスに反転した情報が比較器(17)と(18)とに流
れるが、比較器(17)の入力側はマイナスであるから
入らず、比較器(18)の入力側プラスへ入る。一方、
比較器(1B)に入った90%の情報は、65%負荷情
報のプラスと比較し、マイナスの結果がでるので、プラ
スに反転した情報は比較器(18)の入力側マイナスに
は入らないからAND回路(21)の入力側には一方の
比較器(18)側からだけの入力なのでAND回路(2
1)は出力しない、従って比較器(20)のプラス入力
側へ受入れられ、冷却装置(2)(3)の出力端子(2
4)から出力されて、冷却装置(2)と(3)とが運転
して冷却器(9)  (10)  (12)(13)が
室(1)の空気を冷却し、空気が冷却媒体として被冷却
物を冷却するものである。
The figure shows the case of an object to be cooled with a 100% load. For example, in the case of an object to be cooled with a load of 65% before cooling, cooling starts from position (G). door(
7) Open and store the object to be cooled, then close it, measure the average temperature of the object to be cooled, input it into the CPU, and input other cooling conditions.The CPU calculates this and returns 90.
When information indicating that the load is % load is input to the comparator circuit, the comparator (15) compares 90% on the negative side with 35% on the positive side and returns a negative result, so it is reversed to positive. Information flows to the comparators (17) and (18), but since the input side of the comparator (17) is negative, it does not enter, but enters the positive input side of the comparator (18). on the other hand,
The 90% information input to the comparator (1B) is compared with the positive 65% load information, and a negative result is obtained, so the information that is inverted to positive will not be input to the negative input side of the comparator (18). Since only one comparator (18) is input to the input side of the AND circuit (21),
1) does not output, so it is accepted into the positive input side of the comparator (20), and the output terminal (2) of the cooling device (2) (3)
4), the cooling devices (2) and (3) operate, and the coolers (9), (10), (12), and (13) cool the air in the room (1), and the air becomes a cooling medium. It is used to cool objects to be cooled.

冷却が進んで冷却負荷(イ)の情報が64%になった場
合、比較器(15)においては90%の場合と同様であ
るが、比較!(113)においては、それまでとは逆の
マイナス情報が比較器(18)に入るので、比較器(1
8)に入った情報と共に、これら両方がAND回路(2
1)を出力させ、冷却装置(2)を止めて冷却装置(3
)が65%能力で冷却を続行する0次に冷却負荷(イ)
が34%になるとき、比較器(15)におけるプラスの
結果がマイナス情報として比較器(17)に入り、比較
器(18)には入らなくなるので冷却装置(3)が止り
、冷却装置i!i (2)が運転し冷却する。
When the cooling progresses and the information on the cooling load (a) reaches 64%, the comparator (15) reads the same as when it is 90%, but the comparison! In (113), the negative information opposite to the previous one enters the comparator (18), so the comparator (1
Both of these, together with the information entered in 8), are sent to an AND circuit (2
1), stop the cooling device (2), and turn on the cooling device (3).
) continues cooling at 65% capacity (0-order cooling load (a)
When becomes 34%, the positive result from the comparator (15) enters the comparator (17) as negative information and does not enter the comparator (18), so the cooling device (3) stops and the cooling device i! i (2) operates and cools.

冷却負荷(イ)の情報がOとなったとき、予冷が終了す
るので冷却装置(2)を止めて、保冷輸送車等に積んで
出荷するか、または出荷まで保冷する場合は、こののち
冷却装置(2)が断続運転する保冷回路等に切換て保冷
することができる。
When the cooling load (a) information becomes O, precooling is completed, so stop the cooling device (2), load it onto a refrigerated transport vehicle, etc., and ship it, or if you want to keep it cool until shipping, then cool it down. The device (2) can be switched to a cold storage circuit or the like that operates intermittently to maintain cold storage.

図例のようにCPUを含む制御回路を設けて冷却すると
、自動的に目標温度に達するまで被冷却物を動力低減を
した上で便利に冷却できるのでよい。
If a control circuit including a CPU is provided for cooling as shown in the illustrated example, the object to be cooled can be conveniently cooled while automatically reducing power until the target temperature is reached.

【図面の簡単な説明】[Brief explanation of the drawing]

図は、この発明の一実施例を示すもので、第1図は平断
面図、第2図は側断面図、第3図は運転切換回路図、第
4図は運転動作図である。 図中、符号(1)は冷蔵室、(2)(3)は冷却装置、
(8)  (11)は冷凍機、(9)  (to)  
(+2)  (13)は冷却器を示す。
The drawings show an embodiment of the present invention; FIG. 1 is a plan sectional view, FIG. 2 is a side sectional view, FIG. 3 is an operation switching circuit diagram, and FIG. 4 is an operation diagram. In the figure, code (1) is the refrigerator compartment, (2) and (3) are the cooling devices,
(8) (11) is a refrigerator, (9) (to)
(+2) (13) indicates a cooler.

Claims (1)

【特許請求の範囲】[Claims] 冷蔵室(1)の室内空気を冷却する複数の夫々冷却能力
差を有する冷却装置(2)(3)・・・を、設定される
冷却条件に応じた冷却能力及び冷却時間に選択して冷却
することを特徴とする冷蔵庫の冷却方式。
A plurality of cooling devices (2), (3)... each having a different cooling capacity for cooling the indoor air of the refrigerator compartment (1) are selected to have cooling capacities and cooling times according to the set cooling conditions. A refrigerator cooling method that is characterized by:
JP20308285A 1985-09-12 1985-09-12 Cooling system of refrigerator Pending JPS6262170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20308285A JPS6262170A (en) 1985-09-12 1985-09-12 Cooling system of refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20308285A JPS6262170A (en) 1985-09-12 1985-09-12 Cooling system of refrigerator

Publications (1)

Publication Number Publication Date
JPS6262170A true JPS6262170A (en) 1987-03-18

Family

ID=16468061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20308285A Pending JPS6262170A (en) 1985-09-12 1985-09-12 Cooling system of refrigerator

Country Status (1)

Country Link
JP (1) JPS6262170A (en)

Similar Documents

Publication Publication Date Title
US5029450A (en) Refrigerator commodities transport system
US4244193A (en) Ambient air cooling system
US7178356B1 (en) Freezer arrangement
EP1236960B1 (en) Preservation apparatus particularly for perishable products at a preset temperature
US3237415A (en) Zone controlled refrigeration system
US3073126A (en) Refrigeration apparatus
EP0641978A1 (en) Improvements in and relating to refrigeration method and apparatus
JPS6262170A (en) Cooling system of refrigerator
US2219789A (en) Refrigerator
JPH02143074A (en) Cold heat accumulating type cold reserving case
JPH02282679A (en) Operation control device for freezer
JP3456447B2 (en) Cool box
JP3197593B2 (en) Refrigerator temperature controller
JPH0650617A (en) Freezing unit for container
JPH0375468A (en) Cold storage type cold warehouse
JPH02171574A (en) Heat storage type cold storage bin
JPH06109352A (en) Refrigeration apparatus for container
JPS61205767A (en) Method of controlling temperature of cold-insulating warehouse
JP3103603B2 (en) Cool storage type cool box
JP2947528B2 (en) Cool storage cool box
JPH0752545Y2 (en) Container with cool storage type refrigeration unit
US3138939A (en) Air cooling system for below freezing temperatures
JPH071139B2 (en) Refrigerator
JPH0391676A (en) Low temperature box
JPH10300313A (en) Cold storage type cold insulating apparatus