JPS6029570A - Refrigerator - Google Patents
RefrigeratorInfo
- Publication number
- JPS6029570A JPS6029570A JP13707883A JP13707883A JPS6029570A JP S6029570 A JPS6029570 A JP S6029570A JP 13707883 A JP13707883 A JP 13707883A JP 13707883 A JP13707883 A JP 13707883A JP S6029570 A JPS6029570 A JP S6029570A
- Authority
- JP
- Japan
- Prior art keywords
- cooler
- refrigerator
- freezer compartment
- compartment
- cooling
- 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
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
- F25D2317/0653—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the mullion
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Defrosting Systems (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (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】
〔発明の技術分野〕
本発明は設定潤度の異なる冷蔵室と冷凍室とを有し且つ
冷凍室内を直接冷却と冷風強制循環による間接冷却とで
冷却する機能を有する冷蔵庫に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention has a refrigerator compartment and a freezer compartment with different humidity settings, and has a function of cooling the freezer compartment by direct cooling and indirect cooling by forced circulation of cold air. Regarding refrigerators.
従来より冷蔵庫においては冷凍室用内箱を冷却器自体に
よって形成する直冷形冷凍苗構造のものと、冷凍室用内
箱を冷凍室と風路室とに区分してその風路室に冷凍室用
冷却器と冷風を冷凍室内に送出するファン装置とを配置
した冷風循環形のものがある。これらの性能を比較する
と直冷形冷凍室では室壁面に載置された食品の冷却速瓜
が速いが冷却壁面から浮かして棚等に置かれた食品の冷
却速度は遅い。これに対して冷風循環形における食品冷
却速度は直冷形に比べると空中に浮がして置かれた食品
については速いが室壁面に載置された食品については遅
い。従って、上記二種の冷蔵庫ではいずれも、冷凍室内
の収納場所によっては冷却度合が不充分になることがあ
った。また、斯様な事情は例えば未凍結食品を冷凍室内
で急速に冷却して凍結させようとする場合に、収納場所
によってはその凍結に長時間を要してしまうことが生ず
ることを意味し、冷凍食品の保存上好ましくないという
のが実情であった。Conventionally, refrigerators have a direct cooling type frozen seedling structure in which the inner box for the freezer compartment is formed by the cooler itself, and the inner box for the freezer compartment is divided into a freezer compartment and an air duct room and the freezer is stored in the air duct compartment. There is a cold air circulation type that includes a room cooler and a fan device that sends cold air into the freezer compartment. Comparing these performances, in a direct cooling type freezer, food placed on the wall of the room is cooled quickly, but food placed on a shelf or the like floating above the cooling wall is cooled slowly. On the other hand, compared to the direct cooling type, the food cooling rate in the cold air circulation type is faster for food placed floating in the air, but slower for food placed on the chamber wall. Therefore, in both of the above two types of refrigerators, the degree of cooling may become insufficient depending on the storage location in the freezer compartment. In addition, such circumstances mean that, for example, when trying to rapidly cool and freeze unfrozen food in a freezer compartment, freezing may take a long time depending on the storage location. The reality is that this is not desirable in terms of preserving frozen foods.
本発明は上記事情に鑑みてなされてたものであって、そ
の目的は、冷凍室内の食品をその収納場所の如何にかか
わらず十分に冷却でき、また、食品を特に急速に冷却し
たい場合にはその急速冷却を可能ならしめ得、しかもそ
のようにしても冷蔵室の温度上昇を極力抑えることがで
きる冷蔵庫を提供するにある。The present invention has been made in view of the above circumstances, and its purpose is to sufficiently cool food in a freezer compartment regardless of where it is stored, and to cool food particularly quickly. To provide a refrigerator which can perform rapid cooling and can suppress temperature rise in a refrigerator compartment as much as possible even when doing so.
本発明は食品を載Ｖてこれを冷却する補助冷却器及びフ
ァンににる循Ｍ用を冷却するための主冷却器からなる冷
凍室用冷却器と、冷蔵室用冷却器とを設け、もって冷凍
室内の食品を主冷却器により生成される冷風及び補助冷
却器自体のいずれか又は双方により冷却し得るよう成す
と共に、急速指令信号に基づぎタイマ装置を作動させて
所定時間前記冷凍室用冷却器のみに冷媒を供給する急速
冷却運転を行わＩる構成とすることにより、食品を急速
に冷却して凍結させたい場合等には冷凍室内の強力な冷
却を可能ならしめ、さらにこの急速冷却運転後前記冷蔵
室用冷却器及び主冷却器に冷媒を供給する冷蔵室温補償
運転を行い、この冷蔵室温補償運転を冷蔵室内に設けた
冷蔵室温検出素子の出力信号に基づき終了させるよう構
成することにより前記急速冷却運転中における冷蔵室内
の温度上昇傾向を確実に是正しようとするところに特徴
を有する。The present invention includes a freezer compartment cooler consisting of an auxiliary cooler for placing food and cooling it, and a main cooler for cooling the circulating medium through a fan, and a refrigerator compartment cooler. The food in the freezer compartment is cooled by either or both of the cold air generated by the main cooler and the auxiliary cooler itself, and a timer device is operated based on the rapid command signal to cool the food in the freezer compartment for a predetermined period of time. By adopting a configuration that performs a rapid cooling operation that supplies refrigerant only to the cooler, it is possible to powerfully cool the inside of the freezer compartment when it is desired to rapidly cool and freeze food, and furthermore, this rapid cooling After the operation, a refrigeration room temperature compensation operation is performed to supply refrigerant to the refrigerator compartment cooler and the main cooler, and the refrigeration room temperature compensation operation is configured to be terminated based on an output signal of a refrigeration room temperature detection element provided in the refrigeration compartment. The present invention is characterized in that it attempts to reliably correct the tendency of temperature increase in the refrigerator compartment during the rapid cooling operation.
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.
冷蔵庫の概要を示した第１図において、断熱箱１は内部
に冷蔵室２とこれとは熱的に独立する冷凍室３とを形成
して成り、その各々の前側開口部には扉２ａ 、３ａを
開閉自在に設けている。そして冷蔵室２内には冷蔵室用
冷却器４を配置し、冷凍室３内には食品を載せてこれを
直接冷却するための補助冷却器５を配ｌしている。また
この冷凍室３の奥及び床下にわたり風路室６を形成しこ
れに補助冷却器５と協動して冷凍室用冷却器を構成する
冷凍室用主冷却器７を配置していてファンモータ８によ
りファン９を駆動することによって冷凍室用主冷却器７
により生成された冷気を冷凍室３内を通して循環させる
ようになっている。この冷蔵庫の冷凍サイクルは第２図
に示す通りの構成になっている。即ち、ロータリ形コン
プレッサ１０の吐出口と吸入口との間にはコンデンサ１
１、第１の制御弁１２、冷蔵室用冷却器４、冷凍室用主
冷却器７、アキコームレータ１３及び逆止弁１４から成
る冷媒流路を形成し且つ第１の制御弁１２及び冷蔵室用
冷却器４からなる流路と並列に第２の制御弁１５及び補
助冷却器５から成る流路を接続している。尚、１６ａ乃
至１６ｅはキャピラリチューブである。第３図にはこの
冷凍サイクルを制御する回路構成が示されている。この
第３図において、１７は制御部であり、温度検知ユニッ
ト１８から温度情報を受けて駆動ユニット１９に制御信
号を与え、以てこの駆動ユニット１９が第１の！ｉｌＪ
ｍ弁１２及び第２の制御弁１５をトランジスタ２０ａ
、２０ｂをして通断υ」御し、また、冷＝５−
原字用主冷却器７に添設された除霜ヒータ２１、ダンパ
ー駆動ヒータ２２、ファンモータ８及び］コンプレッサ
０を駆動するコンプレッサモータ２３を夫々リレー接点
２４乃至２７により通ｌＩｉ電利御するようにしている
。ここでタンパ−駆動ヒータ２２は風路室６の冷凍室３
内への吐出口を開閉するダンパ２８をそのベローズ部２
８ａを含む感熱部２８ｂを加熱することにより開成方向
に動作させるためのものである。尚、この第３図のその
他の部分において、２９は冷凍室、冷蔵室の温度調節並
びに快速冷凍スイッチ等の操作部及び運転表示、温間状
態表示等の表示を行なう表示部を構成する操作及び表示
ユニット、３０は庫内灯、３１はドアスイッチ、３２は
差込端子である。第４図は前記温度検知ユニット１８の
具体的回路を示すものである。この第４図において、３
３は冷蔵室用冷却型温検出素子、３４は冷蔵室温検出素
子、３５は除霜完了検出素子（温度検出）、３６は冷凍
室温検出素子であり、これらのうち前３者の素子３３，
３４．３５の抵抗変化による信号は夫々６−
コンパレータ３７．３８．３９により分圧抵抗回路３３
ａ 、３４ａ 、３５ａにより設定された基準値Ｖａ
、Ｖｂ 、Ｖｃと比較されて冷蔵室冷却型温信号Ｓ１、
冷蔵室空気温信号Ｓ２、除霜完了信号Ｓ４として制御部
１７に与えられ、また冷凍室温検出素子３６の抵抗変化
はコンパレータ４０により分圧抵抗回路３６ａにより設
定された基準（ｌｉ′ｌＶｄと比較されて冷凍室温信号
Ｓ３として制御部１７に与えられるようになっている。In FIG. 1, which shows an outline of a refrigerator, an insulating box 1 has a refrigerator compartment 2 and a freezer compartment 3 that is thermally independent from the refrigerator compartment 2, each of which has a door 2a at the front opening. 3a is provided so that it can be opened and closed freely. A refrigerator compartment cooler 4 is arranged in the refrigerator compartment 2, and an auxiliary cooler 5 is arranged in the freezer compartment 3 to directly cool food. In addition, an air passage chamber 6 is formed across the back of the freezer compartment 3 and under the floor, and a main cooler 7 for the freezer compartment, which cooperates with the auxiliary cooler 5 to constitute a cooler for the freezer compartment, is disposed in this air passage chamber 6. By driving the fan 9 by the main cooler 7 for the freezer compartment.
The cold air generated by this is circulated through the freezer compartment 3. The refrigeration cycle of this refrigerator is constructed as shown in FIG. That is, a condenser 1 is disposed between the discharge port and the suction port of the rotary compressor 10.
1. A refrigerant flow path consisting of a first control valve 12, a cooler 4 for the refrigerator compartment, a main cooler 7 for the freezer compartment, an accumulator combulator 13, and a check valve 14 is formed, and the first control valve 12 and the refrigerator A flow path consisting of a second control valve 15 and an auxiliary cooler 5 is connected in parallel with the flow path consisting of the room cooler 4. Note that 16a to 16e are capillary tubes. FIG. 3 shows the circuit configuration for controlling this refrigeration cycle. In FIG. 3, 17 is a control section which receives temperature information from the temperature detection unit 18 and gives a control signal to the drive unit 19, thereby causing the drive unit 19 to operate as the first! ilJ
The m valve 12 and the second control valve 15 are connected to the transistor 20a.
, 20b to control the opening υ'', and also drive the defrost heater 21, damper drive heater 22, fan motor 8, and compressor 0 attached to the main cooler 7 for cold = 5- original characters. The compressor motor 23 is electrically controlled by relay contacts 24 to 27, respectively. Here, the tamper-driven heater 22 is connected to the freezing chamber 3 of the air passage chamber 6.
The damper 28 that opens and closes the discharge port inward is connected to its bellows portion 2.
This is to move the heat sensitive part 28b including the heat sensitive part 8a in the opening direction by heating it. In other parts of FIG. 3, reference numeral 29 denotes an operation section for adjusting the temperature of the freezer and refrigerator compartments, a quick freezing switch, etc., and a display section for displaying operation display, warm state display, etc. A display unit, 30 is an interior light, 31 is a door switch, and 32 is a plug terminal. FIG. 4 shows a specific circuit of the temperature detection unit 18. In this figure 4, 3
3 is a cooling type temperature detection element for the refrigerator compartment, 34 is a refrigerator room temperature detection element, 35 is a defrosting completion detection element (temperature detection), and 36 is a freezing room temperature detection element, among which the former three elements 33,
The signals due to resistance changes of 34 and 35 are connected to the voltage dividing resistor circuit 33 by comparators 37, 38, and 39, respectively.
Reference value Va set by a, 34a, 35a
, Vb, and Vc to obtain a cold room cooling type temperature signal S1,
The refrigerating room air temperature signal S2 and the defrosting completion signal S4 are given to the control unit 17, and the resistance change of the refrigerating room temperature detection element 36 is compared with the reference (li'lVd) set by the voltage dividing resistor circuit 36a by the comparator 40. and is provided to the control section 17 as a frozen room temperature signal S3.
特にコンパレータ４０はダイオードを含むヒステリシス
ループ４０ａを有し、冷凍室温（空気温）信号Ｓ３の温
度値が庫内温度の上昇過程と下降過程とでは異なるよう
にし、以て−Ｊコンプレッサ０の停止温度と再起動温度
との間に所定の温度差を与えるようにしている。In particular, the comparator 40 has a hysteresis loop 40a including a diode, so that the temperature value of the refrigeration room temperature (air temperature) signal S3 is different between the rising process and the falling process of the internal temperature, so that the -J compressor 0 stop temperature A predetermined temperature difference is provided between the restart temperature and the restart temperature.
次に上記構成の作用（第５図及び第６図のフローチャー
トにも示しである。）につき説明するに、この作用説明
によって冷凍サイクル制御システムの構成が更に明確に
なるはずである。Next, the operation of the above configuration (also shown in the flowcharts of FIGS. 5 and 6) will be explained. This explanation should make the configuration of the refrigeration cycle control system even clearer.
（Ｉ＞ 通 常 運 転
今、冷蔵室２及び冷凍室３が設定温度以上にあるとする
と、このことを制御部１７が温度検知ユニット１８から
常時受けている冷蔵至冷ＩＩ器温信号Ｓ１、冷蔵室空気
温信号Ｓ２及び冷凍室温信号Ｓ３により判断してコンプ
レッサモータ２３によりコンプレッサ１０を駆動し及び
ファンモータ８も通電させ、更に第１の制御弁１２を開
いて第２の制御弁１５を閉じた状態にして冷却運転を続
けている。即ち、この状態において、コンプレッサ１０
から吐出された冷媒ガスはコンデンサ１１により液化さ
れこれが第１の制御弁１２を通り冷蔵室用冷却器４及び
冷ｉＩＩ室用主冷却器７に供給して冷蔵室２及び冷凍室
３内を冷却する。この場合、冷蔵室２内は自然対流によ
り冷却され冷凍室３内は冷凍室用主冷却器７による冷気
がファン９により強、副循環されて冷却される（この間
、ダンパ２８は開いている）。そして冷蔵室２が設定温
度まで低下すると冷蔵室温検出素子３４により得られた
冷蔵室空気温信号Ｓ２に基き第１の制御弁１２を閉じる
と共に第２の制御弁１５を開く切換え動作を行ない、冷
媒を補助冷却器５及び冷凍室用主冷却器７への供給状態
に切換える。この状態で冷凍室３が設定温度まで低下す
ると冷凍室温検出素子３６により得られた冷凍室温信号
Ｓ３に基づきコンプレッサ１０の運転を停止させる。こ
のようなコンプレッサ１０の停止期間は第１の制御弁１
２、第２の制御弁１５の両者共が開成状態に保たれ、こ
れにより］コンプレッサ０の停止直後にコンデンサ１１
に滞留している過熱冷媒ガスが冷却器側に漏れこれを加
熱してしまうことを防止すると共に、コンデンサ１１の
冷媒を高い凝縮圧状態に保持して］ンプレッサ１０の再
起動の効率を向上させる。そしてこのようなコンプレッ
サ１０の停止中に冷凍室３の温度がその設定範囲以上に
上昇した場合はこのときの冷凍室温信号Ｓ３に基づいて
コンプレッサ１０が再起動される。(I> Normal operation) If the temperature of the refrigerator compartment 2 and the freezer compartment 3 are now higher than the set temperature, the controller 17 detects this by sending the refrigerator to cold II temperature signal S1, which is constantly received from the temperature detection unit 18. Judging from the refrigerator room air temperature signal S2 and the freezer room temperature signal S3, the compressor 10 is driven by the compressor motor 23, the fan motor 8 is also energized, and the first control valve 12 is opened and the second control valve 15 is closed. In other words, in this state, the compressor 10
The refrigerant gas discharged from the is liquefied by the condenser 11, which passes through the first control valve 12 and is supplied to the refrigerator compartment cooler 4 and the cold III compartment main cooler 7 to cool the refrigerator compartment 2 and freezer compartment 3. do. In this case, the inside of the refrigerator compartment 2 is cooled by natural convection, and the inside of the freezer compartment 3 is cooled by strong sub-circulation of cold air from the main cooler 7 for the freezer compartment (during this time, the damper 28 is open). . When the temperature of the refrigerator compartment 2 drops to the set temperature, a switching operation is performed to close the first control valve 12 and open the second control valve 15 based on the refrigerator compartment air temperature signal S2 obtained by the refrigerator room temperature detection element 34. is switched to the supply state to the auxiliary cooler 5 and the main cooler 7 for the freezer compartment. When the temperature of the freezer compartment 3 drops to the set temperature in this state, the operation of the compressor 10 is stopped based on the freezer room temperature signal S3 obtained by the freezer room temperature detection element 36. During such a stop period of the compressor 10, the first control valve 1
2. Both of the second control valves 15 are kept open, so that immediately after the compressor 0 stops, the capacitor 11
This prevents the superheated refrigerant gas staying in the compressor from leaking to the cooler side and heating it, and also maintains the refrigerant in the condenser 11 at a high condensing pressure to improve the efficiency of restarting the compressor 10. . If the temperature of the freezing chamber 3 rises above the set range while the compressor 10 is stopped, the compressor 10 is restarted based on the freezing room temperature signal S3 at this time.
（ＩＩ）冷蔵室冷却能力低下の防止
コンプレッサ１０の駆動中に第１の制御弁１２が開いて
冷媒を冷蔵室用冷却器４及び冷凍室用主冷却器７の両者
に供給する状態が連続して長時間９−
例・えば１０時時間いた場合は、このことをタイマーに
より判定して第１の制御弁１２を閉じる一方、第２の制
御弁１５を開放して冷蔵室用冷却器４への冷媒供給を停
止し、以て冷蔵室用冷却器４に付着した霜を自然溶融に
よって除去させる。これにより、冷蔵室用冷却器４への
冷媒供給が連続して長時間性なわれて霜が自然溶解機会
を失ない、そのため霜が冷蔵室用冷却器４へ多く付着し
て庫内の冷却効率を低下させる、と云う事態になること
を防止する。(II) Prevention of reduction in refrigerator compartment cooling capacity The first control valve 12 opens while the compressor 10 is operating, and the state in which refrigerant is supplied to both the refrigerator compartment cooler 4 and the freezer compartment main cooler 7 continues. For example, if it has been there for a long time from 9 to 10 o'clock, this is determined by a timer and the first control valve 12 is closed, while the second control valve 15 is opened and the air is supplied to the cooler 4 for the refrigerator compartment. The refrigerant supply is stopped, and the frost adhering to the refrigerator compartment cooler 4 is removed by natural melting. As a result, the refrigerant supply to the refrigerator compartment cooler 4 is continued for a long period of time, and the frost does not lose the opportunity to dissolve naturally. Therefore, a large amount of frost adheres to the refrigerator compartment cooler 4, which reduces the cooling inside the refrigerator. Prevent situations where efficiency is reduced.
（ＩＩ）冷蔵室の冷却休止防止
コンプレッサ１０の停止中に冷蔵室２内の温度が冷却開
始温度例えば３．５℃に上昇してから３０分を経過した
場合はコンプレッサ１０従ってコンプレッサモータ２３
を冷凍室温検出素子３６による冷凍室温信号８３によら
ずに強制的に駆動する。(II) Prevention of cooling stoppage in the refrigerator compartment If 30 minutes have passed since the temperature in the refrigerator compartment 2 rose to the cooling start temperature, for example, 3.5° C. while the compressor 10 is stopped, the compressor 10 and the compressor motor 23
is forcibly driven without depending on the frozen room temperature signal 83 from the frozen room temperature detection element 36.
このようなコンプレッサ１０の強制再起動は冷蔵室用冷
却型温検出素子３３による冷蔵室冷却器部信号Ｓ１を監
視するタイマーにより行なわれる。Such forced restart of the compressor 10 is performed by a timer that monitors the refrigerator compartment cooler section signal S1 from the refrigerator compartment cooling type temperature detection element 33.
この結果、冷蔵室２内に負荷を多くいれたため庫＝１０
−
内温が高いまま運転休止状態に長時間放置されたままに
なることを防止できる。As a result, a large load was put into the refrigerator compartment 2, so the refrigerator = 10
− It can prevent the product from being left in a non-operational state for a long time with high internal temperature.
（ＩＶ ）急速冷却運転
これは手動操作により急速冷却指令信号を発生させて前
記制御部１７に設けた急速冷却用のタイマ装置を作動さ
せ、これによりコンプレッサ１０を駆動する一方、第１
の制御弁１２を閉じて第２の制御弁１５を開き、以て補
助冷却器５及び冷凍室用主冷却器７への冷媒供給をその
設定時間の間強制的に続けさせて冷凍室３内を迅速に冷
却させる運転である。これにより、例えば未凍結食品を
冷凍室３内に収納した場合でも、その食品を迅速に凍結
させることができる。(IV) Rapid cooling operation In this operation, a rapid cooling command signal is generated by manual operation to operate a rapid cooling timer device provided in the control section 17, thereby driving the compressor 10 while
The second control valve 12 is closed and the second control valve 15 is opened to forcibly continue supplying refrigerant to the auxiliary cooler 5 and the main cooler 7 for the freezer compartment for the set time. This is an operation that cools down quickly. Thereby, for example, even when unfrozen food is stored in the freezer compartment 3, the food can be quickly frozen.
（Ｖ） 冷蔵室温補償運転
そして、急速冷却用のタイマ装置の設定時間が経過する
と第１の制御弁１２が開き第２の制御弁１５が閉じる流
路切換え動作を強制的に行なわせＣ冷蔵室用冷却器４及
び冷凍室用主冷却器７への冷媒供給状態にして冷蔵室温
補償運転が行われる。(V) Refrigeration room temperature compensation operation Then, when the set time of the timer device for rapid cooling has elapsed, the first control valve 12 opens and the second control valve 15 closes to forcibly perform a flow path switching operation. Refrigerating room temperature compensation operation is performed with refrigerant being supplied to the main cooler 4 and the main cooler 7 for the freezer compartment.
この冷蔵室温補償運転は冷蔵室温検出素子３４による冷
蔵室空気温信号Ｓ２により冷却停止指令が与えられるま
で続（プられ、その後通常運転制御に戻る。このように
して冷凍室３の急速冷却運転期間における冷蔵室２内の
温度上昇が補償される。This refrigeration room temperature compensation operation continues until a cooling stop command is given by the refrigeration room air temperature signal S2 from the refrigeration room temperature detection element 34, and then returns to normal operation control. In this way, the rapid cooling operation period of the freezer compartment 3 The temperature rise in the refrigerator compartment 2 at 1 is compensated for.
（Ｖｌ）除霜運転
冷凍室用主冷却器７の除霜運転は次のように行なわれる
。即ち除霜監視タイマーは］ンプレッザ１０の運転時間
を積算しこれが設定時間例えば４８時間に達したときに
除霜開始指令信号を出力する。この指令によって除霜前
強制冷却動作が行なわれる。(Vl) Defrosting operation The defrosting operation of the main cooler 7 for the freezer compartment is performed as follows. That is, the defrosting monitoring timer integrates the operating time of the compressor 10, and outputs a defrosting start command signal when the accumulated operating time reaches a set time, for example, 48 hours. This command causes a pre-defrost forced cooling operation to be performed.
（Ａ） 除霜前強制冷却動作
除霜開始指令に基づきコンプレツリモータ２３及びファ
ンモータ８の駆動並びに第１の制御弁１２の開放動作を
強制的に行なわせて冷蔵室用途Ｎｌ器４及び冷凍室用主
冷却器７への冷媒供給を行なう。この状態は冷蔵室温検
出素子３４による冷蔵室空気温信号Ｓ２によって第１の
制御弁１２が閉じられるまで継続されこれにより冷蔵室
２の強制冷却が行なわれる。そして冷蔵室空気温信号Ｓ
２により第１の制御弁１２が閉じられ第２の制御弁１５
が開放されると冷媒は補助冷却器５及び冷凍室用土冷却
器７へ強制的に供給され、今度はこの状態を専用のタイ
マーによって一定時間例えば１５分間続ける。そしてこ
の時間の経過でコンプレッ４ｊ １０の駆動を停止させ
、第１の制御弁１２゜第２の制御弁１５を閉状態にする
一方、ダンパ２８の閉成動作に移行させる。このダンパ
２８の閉成はダンパー駆動ヒータ２２を通電してベロー
ズ部２８ａを膨張させることにより行なわれる。このよ
うにして除霜運転中の風路室６内に充満する水蒸気が冷
凍室３との温度差による対流作用で冷凍室３内に吐出し
て補助冷却器５の表面で氷結し堆積することを防止する
。こうしてダンパ２８が閉じられると除霜ヒータ２１へ
の通電が行なわれ、冷凍室用主冷却器７に付着した霜の
溶解除去を行なう実際の除霜動作が開始される。除霜が
完了すると冷凍室用主冷却器７の表面温度が急に上昇し
、従って制御部１７はこれを除霜完了検出素子３５によ
り得られた除霜完了信号Ｓ４により判断して１３−
除霜ヒータ２１を断電すると共に除霜完了付帯動作を行
なう。(A) Forced cooling operation before defrosting Based on the defrosting start command, the compressor motor 23 and fan motor 8 are driven, and the first control valve 12 is forcibly opened to cool down the refrigerator compartment Nl unit 4 and refrigeration. Refrigerant is supplied to the indoor main cooler 7. This state continues until the first control valve 12 is closed in response to the refrigerating room air temperature signal S2 from the refrigerating room temperature detection element 34, whereby the refrigerating room 2 is forcedly cooled. and refrigerator room air temperature signal S
2 closes the first control valve 12 and closes the second control valve 15.
When the refrigerant is opened, the refrigerant is forcibly supplied to the auxiliary cooler 5 and the soil cooler 7 for the freezer compartment, and this state is continued for a certain period of time, for example, 15 minutes, using a dedicated timer. After this time has elapsed, the drive of the compressor 4j 10 is stopped, the first control valve 12 and the second control valve 15 are closed, and the damper 28 is caused to close. The damper 28 is closed by energizing the damper drive heater 22 to expand the bellows portion 28a. In this way, the water vapor filling the air passage chamber 6 during the defrosting operation is discharged into the freezing chamber 3 by convection due to the temperature difference with the freezing chamber 3, and freezes and accumulates on the surface of the auxiliary cooler 5. prevent. When the damper 28 is closed in this manner, the defrosting heater 21 is energized, and an actual defrosting operation for melting and removing the frost adhering to the main cooler 7 for the freezer compartment is started. When defrosting is completed, the surface temperature of the main cooler 7 for the freezer compartment rises suddenly, and therefore, the control unit 17 determines this based on the defrosting completion signal S4 obtained by the defrosting completion detection element 35, and performs 13-defrosting. The frost heater 21 is de-energized and defrosting completion incidental operations are performed.
（Ｂ） 除霜完了付帯動作
この除霜完了付帯動作には水滴除去動作と庫内温度強制
回復動作とがある。(B) Defrosting Completion Ancillary Operation This defrosting completion ancillary operation includes a water droplet removal operation and a forced storage temperature recovery operation.
先ず、除霜ヒータ２１の断電後はタイマーにより所定の
短時間、例えば５分間、ダンパ２８を引き続いて閉成状
態に及びコンプレッサ１０を停止状態に維持する。この
期間に冷凍室用主冷却器７の表面に霜の溶解により付着
している水滴を自然流下せしめ、以てこの水滴が冷却運
転の開始により氷結してしまうことを防止する。タイマ
ーによるこのような水滴除去動作の完了後に庫内温度強
制回復動作が次のように行なわれる。即ち上記の水滴除
去用のタイマーの設定時間の経過によって強制的にコン
プレッサ１０を駆動し１つ第２の制御弁１５を開状態に
して冷媒を補助冷却器５及び冷凍室用主冷却器７のみに
供給する除霜余熱吸収動作を所定時間例えば１０分間強
制的に行なう一方、この間も水滴除去動作に引続いてダ
ンパ２８１４−
を開成状態に保−）ど共にファンモータ８も停止状態に
保つ。こうして、もし除霜完了と同時に冷却運転を１ガ
開させ目つタンパ２８を開きファンモータ８を駆動した
とすると冷凍室用主冷却器７自体及び風路室６内にこも
った除霜動作に伴う水蒸気或いは余熱即ち暖気が値ちに
冷凍室３内に吹き出される、と云う不都合を防止する。First, after the power to the defrosting heater 21 is cut off, a timer is used to keep the damper 28 closed and the compressor 10 stopped for a predetermined short period of time, for example, 5 minutes. During this period, water droplets adhering to the surface of the main cooler 7 for the freezer compartment due to melting of frost are allowed to flow down naturally, thereby preventing these water droplets from freezing when the cooling operation is started. After the water droplet removal operation is completed by the timer, the forced storage temperature recovery operation is performed as follows. That is, when the set time of the water droplet removal timer elapses, the compressor 10 is forcibly driven, one second control valve 15 is opened, and the refrigerant is supplied only to the auxiliary cooler 5 and the main cooler 7 for the freezer compartment. While the defrosting residual heat absorption operation is forcibly performed for a predetermined period of time, for example, 10 minutes, during this time the damper 2814 is kept open following the water droplet removal operation, and the fan motor 8 is also kept stopped. In this way, if the cooling operation is opened by one gear and the second tamper 28 is opened to drive the fan motor 8 at the same time as the defrosting is completed, the defrosting operation that is trapped inside the main cooler 7 for the freezer compartment itself and the air passage chamber 6 will occur. This prevents the inconvenience that accompanying water vapor or residual heat, that is, warm air, is immediately blown out into the freezer compartment 3.
次いで、このような除霜余熱吸収動作後、再びタイマー
により今度はダンパ２８を聞きファンモータ８を駆動し
ながら冷媒を補助冷却器５及び冷凍室用主冷却器７のみ
に供給する強制運転を約２０分間行ない、以て冷凍室３
の温度の早期回復を助け、この２０分の時間が経過する
とその後の制御動作は冷凍室温検出素子３６による冷凍
室用却器混信号８３に基づいた通常運転に移行される。Next, after such a defrosting residual heat absorption operation, the timer again starts a forced operation to supply refrigerant only to the auxiliary cooler 5 and the main cooler 7 for the freezer compartment while listening to the damper 28 and driving the fan motor 8. Do this for 20 minutes, then move to freezer compartment 3.
When this 20 minute period has elapsed, the subsequent control operation is shifted to normal operation based on the freezer compartment condenser mix signal 83 from the freezer room temperature detection element 36.
（■）急速冷ｆｊ１及び除霜運転の優先関係実際の使用
状態にあっては除霜サイクル（実際の霜溶解動作の前後
の関連動作を含む意味）中に急速冷却指令が出されたり
、或いはその逆のことが起ることがあり、その場合の優
先関係を次に述べる。(■) Priority relationship between rapid cooling fj1 and defrosting operation In actual use, a rapid cooling command is issued during the defrosting cycle (meaning that includes related operations before and after the actual frost melting operation), or The opposite may occur, and the priority relationship in that case is described below.
急速冷却指令を、除霜指令が既に発生して除霜完了付帯
動作中に、または除霜完了付帯動作中の除霜余熱吸収動
作終了後に受けた場合は、制御部１７は急速冷却動作を
優先して行ない除霜サイクルのその後の動作を中止し再
び除霜指令待ちの状態にさせる。If the rapid cooling command is received during the defrosting completion supplementary operation after a defrosting command has already been generated, or after the defrosting residual heat absorption operation is completed during the defrosting completion supplementary operation, the control unit 17 gives priority to the rapid cooling operation. Then, the subsequent operation of the defrosting cycle is stopped and the defrosting command wait state is resumed.
これに対して急速冷却動作の指令を除霜サイクルの除霜
余熱吸収動作が終了してから除霜余熱吸収動作が終了す
るまでの間に受けた場合は除霜運転を優先ざぜこれをそ
のまま続行させる。On the other hand, if the command for rapid cooling operation is received between the end of the defrost residual heat absorption operation and the end of the defrost residual heat absorption operation in the defrost cycle, the defrost operation will take priority and continue as is. let
尚、−ト記実施例では冷蔵室温を検出するために空気温
度の検出と冷却器自体の温度の検出とを行ないこれら検
出信号をｌ１ｉｌＪ ＩＩＩ目的に応じて選択し使用す
るようにしているが、何れか一方のみを冷蔵室温信号と
して扱うようにしてもＪ、い。In addition, in the embodiment mentioned above, in order to detect the refrigerated room temperature, the air temperature and the temperature of the cooler itself are detected, and these detection signals are selected and used according to the purpose. It is also possible to treat only one of them as a refrigerator room temperature signal.
本発明によれば、冷凍室内に補助冷却器を配置している
のでこれに食品を載せることにより従来の直冷形のもの
と同様な迅速冷却が可能であると共に棚その他冷却器壁
面以外の壁面に置かれた食品については冷凍室冷却専用
の主冷却器により従来の冷風循環形以上に迅速冷却が可
能である。また、冷気を冷凍室及び冷蔵室間にわたりフ
ァンにより強制循環させる従来のものと異なって冷凍室
内のみで冷風を強制循環させる構成であるので、冷蔵室
内の多湿空気による冷凍室用主冷却器への着霜がなく従
ってその除霜回数を大巾に減ら１ことができるため冷凍
室内の除霜による影響をきわめて少ないものとすること
ができ、冷蔵室内の臭いが冷凍室内の貯蔵食品に移るこ
とも防止できるため冷蔵室内における食品の長期保存を
安心して行なえるものである。更に、急速冷却指令信号
に基づきタイマ装置を作動させて所定時間冷凍室用冷却
器のみに冷媒を供給する急速冷却運転を行うよう構成し
たので、この急速冷却運転により二つの専用冷却器によ
って冷凍室内を迅速に冷却できて食品の凍結貯蔵等に便
ならしめ得る。しかも、このような急速冷却運転後にひ
き続き冷蔵室温補償運転を行うようにしたので、急速冷
却運転期間１７−
における冷蔵室内の湿度上昇傾向を確実に是正できて冷
蔵室内の貯蔵物への悪影響を防止することができる。According to the present invention, since the auxiliary cooler is placed in the freezer compartment, by placing food on it, it is possible to quickly cool the food in the same manner as in the conventional direct cooling type. Food stored in the refrigerator can be cooled more quickly than conventional cold air circulation systems using a main cooler dedicated to cooling the freezer compartment. In addition, unlike conventional systems in which cold air is forced to circulate between the freezer and refrigerator compartments using a fan, the structure is such that the cold air is forced to circulate only within the freezer compartment, so humid air in the refrigerator compartment does not affect the main cooler for the freezer compartment. Since there is no frost formation, the number of times of defrosting can be greatly reduced, so the effect of defrosting inside the freezer compartment can be minimized, and odors in the refrigerator compartment will not be transferred to the food stored in the freezer compartment. Since this can be prevented, food can be safely stored for long periods in the refrigerator. Furthermore, the configuration is configured to operate a timer device based on the rapid cooling command signal to perform a rapid cooling operation that supplies refrigerant only to the freezer compartment cooler for a predetermined period of time. can be cooled quickly, making it convenient for frozen storage of foods, etc. Moreover, since the refrigerating room temperature compensation operation is performed continuously after such a rapid cooling operation, it is possible to reliably correct the tendency of the humidity in the refrigerating room to increase during the rapid cooling operation period 17-, and to prevent any adverse effects on the stored items in the refrigerating room. It can be prevented.
図面は本発明の一実施例に関するもので、第１図は冷蔵
庫の概略的縦断側面図、第２図は冷凍サイクルの接続図
、第３図は制御回路の構成説明図、第４図は温度検知コ
ニットの結線図、第５図及び第６図はフローチャートで
ある。
図中、２は冷蔵室、３は冷凍室、４は冷蔵室用冷却器、
５は補助冷却器、６は風路室、７は主冷却器、９はファ
ン、１０は］ンプレツリ、１２は第１の制御弁、１５は
第２の制御弁、１８は温度検知ユニット、３３は冷蔵室
用冷却型温検出素子、３４は冷蔵掌編検出素子、３６は
冷凍室温検出素子である。
１８−
第１ 図
１
第２ 図The drawings relate to an embodiment of the present invention, in which Fig. 1 is a schematic vertical side view of a refrigerator, Fig. 2 is a connection diagram of a refrigeration cycle, Fig. 3 is an explanatory diagram of the configuration of a control circuit, and Fig. 4 is a temperature diagram. The wiring diagram of the detection unit, FIGS. 5 and 6, are flowcharts. In the figure, 2 is a refrigerator compartment, 3 is a freezer compartment, 4 is a cooler for the refrigerator compartment,
5 is an auxiliary cooler, 6 is an air passage chamber, 7 is a main cooler, 9 is a fan, 10 is an air filter, 12 is a first control valve, 15 is a second control valve, 18 is a temperature detection unit, 33 Reference numeral 34 indicates a cooling-type temperature detection element for a refrigerator, 34 a refrigerator palm-knit detection element, and 36 a frozen room temperature detection element. 18- Fig. 1 Fig. 2
Claims (1)
による循環風を冷却するための主冷却器からなる冷凍室
用冷却器と、冷蔵室用冷却器どを設け、急速冷却指令信
号に基づきタイマ装置を作動させて所定時間前記冷凍室
用冷却器のみに冷媒を供給する急速冷却運転を行い、こ
の急速冷却運転後前記冷蔵室用冷却器及び主冷却器に冷
媒を供給する冷蔵室温補償運転を行い、この冷蔵室温補
償運転を冷蔵室内に設けた冷蔵室温検出素子の出力信号
に基づき終了させるよう構成したことを特徴とする冷蔵
庫1. A cooler for the freezer compartment, consisting of an auxiliary cooler for placing food and cooling it, and a main cooler for cooling the circulating air by a fan, and a cooler for the refrigerator compartment, etc. A timer device is activated to perform a rapid cooling operation in which refrigerant is supplied only to the freezer compartment cooler for a predetermined period of time, and after this rapid cooling operation, a refrigeration room temperature compensation operation is performed in which refrigerant is supplied to the refrigerator compartment cooler and the main cooler. A refrigerator characterized in that the refrigerator is configured to perform the following: and to terminate this refrigerating room temperature compensation operation based on an output signal of a refrigerating room temperature detecting element provided in the refrigerator compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13707883A JPS6029570A (en) | 1983-07-26 | 1983-07-26 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13707883A JPS6029570A (en) | 1983-07-26 | 1983-07-26 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6029570A true JPS6029570A (en) | 1985-02-14 |
Family
ID=15190379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13707883A Pending JPS6029570A (en) | 1983-07-26 | 1983-07-26 | Refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6029570A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62254923A (en) * | 1986-04-30 | 1987-11-06 | Amada Co Ltd | Bending machine provided with die changing device |
| JPS62259620A (en) * | 1986-05-01 | 1987-11-12 | Amada Co Ltd | Bender with metal die changer |
| JPH06226352A (en) * | 1992-04-28 | 1994-08-16 | Amada Co Ltd | Press brake |
-
1983
- 1983-07-26 JP JP13707883A patent/JPS6029570A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62254923A (en) * | 1986-04-30 | 1987-11-06 | Amada Co Ltd | Bending machine provided with die changing device |
| JPH0771697B2 (en) * | 1986-04-30 | 1995-08-02 | 株式会社アマダ | Press brake mold changer |
| JPS62259620A (en) * | 1986-05-01 | 1987-11-12 | Amada Co Ltd | Bender with metal die changer |
| JPH06226352A (en) * | 1992-04-28 | 1994-08-16 | Amada Co Ltd | Press brake |
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