JP2000111231A - Freezer-refrigerator - Google Patents

Freezer-refrigerator

Info

Publication number
JP2000111231A
JP2000111231A JP10281559A JP28155998A JP2000111231A JP 2000111231 A JP2000111231 A JP 2000111231A JP 10281559 A JP10281559 A JP 10281559A JP 28155998 A JP28155998 A JP 28155998A JP 2000111231 A JP2000111231 A JP 2000111231A
Authority
JP
Japan
Prior art keywords
refrigerator
cooling
compartment
compressor
control
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.)
Granted
Application number
JP10281559A
Other languages
Japanese (ja)
Other versions
JP3530043B2 (en
Inventor
Shigeru Niki
茂 仁木
Atsushi Kusunoki
敦 楠
Takuya Kishimoto
卓也 岸本
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.)
Toshiba Corp
Toshiba AVE Co Ltd
Original Assignee
Toshiba Corp
Toshiba AVE 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 Toshiba Corp, Toshiba AVE Co Ltd filed Critical Toshiba Corp
Priority to JP28155998A priority Critical patent/JP3530043B2/en
Publication of JP2000111231A publication Critical patent/JP2000111231A/en
Application granted granted Critical
Publication of JP3530043B2 publication Critical patent/JP3530043B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • F25D2317/068—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 fans
    • F25D2317/0682—Two or more fans
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/28—Quick cooling
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/30—Quick freezing

Landscapes

  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

PROBLEM TO BE SOLVED: To realize a miniaturization of a compressor and a reduction in the mean power consumption and surely execute a selective quick freezing operation inside a freezer compartment or a selective quick refrigerating operation inside a refrigerator compartment. SOLUTION: A three way solenoid valve 20 is switched between a refrigerator compartment cooling mode in which a refrigerant supplied through a condenser 18 after being discharged from a compressor 17 is supplied to a refrigerator compartment cooling device 10 and a freezer compartment cooling device 14 in this order and a freezer compartment cooling mode in which the refrigerant is supplied only to the freezer compartment cooling device 14. A control circuit refrigerates so that the inside of the refrigerator compartment and the inside of the freezer compartment are made at a set temperature, respectively, by executing controls such as an alternate switching of the three way solenoid valve 20 between the refrigerator compartment cooling mode and the freezer compartment cooling mode in a usual state. The control circuit executes controls such as forcibly switching the three way solenoid valve 20 to the freezer compartment cooling mode for a predetermined period of time and increasing the rotating speed of an electric motor for the compressor 17 so as to improve the discharge capability when a quick freezing switch is operated.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、冷凍室及び冷蔵室
を個別に冷却するための冷凍室用冷却器及び冷蔵室用冷
却器を設けると共に、各冷却器により生成される冷気を
冷凍室及び冷蔵室内にそれぞれ送るための冷蔵室用ファ
ン及び冷凍室用ファンを設けて成る冷凍冷蔵庫に関す
る。BACKGROUND OF THE INVENTION The present invention provides a freezer compartment cooler and a refrigerator compartment cooler for individually cooling a freezer compartment and a refrigerator compartment, and cools the cold air generated by each cooler into a freezer compartment. The present invention relates to a refrigerator having a fan for a refrigerator and a fan for a refrigerator for sending the refrigerator into the refrigerator.

【０００２】[0002]

【従来の技術】従来の一般的な冷凍冷蔵庫は、圧縮機か
ら吐出した冷媒を凝縮器を経て液化した後に冷却器に供
給して蒸発させ、その冷却器からの冷気を送風ファンに
より冷凍室内に供給すると共にダンパを介して冷蔵室内
にも供給する構成となっている。この場合、冷蔵室内の
温度が下限設定温度（例えば１℃）以下になったときに
前記ダンパを閉じて冷蔵室内への冷気供給を停止させ、
冷蔵室内の温度が上限設定温度（例えば５℃）以上とな
ったときにダンパを開いて冷蔵室内への冷気供給を行う
ようにしており、これにより冷蔵室内を設定温度（例え
ば３℃）に制御する構成としている。また、冷凍室内の
温度が下限設定温度（例えば−２２℃）以下になったと
きに圧縮機の運転を停止させ、その後、冷凍室内の温度
が上限設定温度（例えば−１８℃）以上になったときに
圧縮機の運転を開始させるようにしており、これにより
冷凍室内の温度を設定温度（例えば−２０℃）に制御す
る構成としている。2. Description of the Related Art In a conventional general refrigerator-freezer, a refrigerant discharged from a compressor is liquefied through a condenser and then supplied to a cooler to evaporate, and cool air from the cooler is introduced into a freezer compartment by a blower fan. It is configured to be supplied and also supplied to the refrigerator compartment via the damper. In this case, when the temperature in the refrigerator becomes lower than the lower limit set temperature (for example, 1 ° C.), the damper is closed to stop the supply of cool air to the refrigerator.
The damper is opened to supply cold air to the refrigerator compartment when the temperature in the refrigerator compartment exceeds the upper limit set temperature (for example, 5 ° C.), thereby controlling the refrigerator compartment to the set temperature (for example, 3 ° C.). Configuration. The operation of the compressor is stopped when the temperature in the freezing room falls below the lower limit set temperature (for example, −22 ° C.), and thereafter, the temperature in the freezer compartment becomes higher than the upper limit set temperature (for example, −18 ° C.). At times, the operation of the compressor is started, whereby the temperature in the freezer compartment is controlled to a set temperature (for example, −20 ° C.).

【０００３】[0003]

【発明が解決しようとする課題】上記従来の冷凍冷蔵庫
では、冷却器により生成される冷気によって冷蔵室及び
冷凍室の双方を同時に冷却する期間が存在する関係上、
単位時間当たりの冷却能力を大きめに設定する必要があ
る。このため、圧縮機として大きな能力を有した大型の
ものが必要になるという問題点があった。また、従来の
冷凍冷蔵庫では、圧縮機の起動及び停止が頻繁に行われ
るため、圧縮機の起動ロスが大きくなって平均消費電力
が増加するという事情があった。In the above-mentioned conventional refrigerator, there is a period in which both the refrigerator compartment and the freezer compartment are simultaneously cooled by the cool air generated by the cooler.
It is necessary to set a large cooling capacity per unit time. For this reason, there is a problem that a large compressor having a large capacity is required as a compressor. Further, in the conventional refrigerator-freezer, since the compressor is frequently started and stopped, the startup loss of the compressor is increased and the average power consumption is increased.

【０００４】そこで、本発明の目的は、圧縮機の小形化
並びに平均消費電力の低減を実現できる冷凍冷蔵庫を提
供することにあり、また、このような冷凍冷蔵庫におい
て、冷凍室内の選択的な急速冷凍運転或いは冷蔵室内の
選択的な急速冷却運転を確実に実行できるようにするこ
とにある。It is an object of the present invention to provide a refrigerator which can reduce the size of the compressor and reduce the average power consumption. An object of the present invention is to ensure that a freezing operation or a selective rapid cooling operation in a refrigerator compartment can be performed.

【０００５】[0005]

【課題を解決するための手段】請求項１記載の発明は、
冷媒を圧縮するための圧縮機と、冷蔵室を冷却するため
の冷蔵室用冷却器と、冷凍室を冷却するための冷凍室用
冷却器と、前記圧縮機から吐出された後に凝縮器を経て
供給される冷媒を少なくとも前記冷蔵室用冷却器に供給
する冷蔵室冷却モードと前記冷凍室用冷却器のみに供給
する冷凍室冷却モードとに切り替えられる弁装置と、こ
の弁装置が冷蔵室冷却モードにあるときに運転されて前
記冷蔵室用冷却器による冷気を前記冷蔵室内に送る冷蔵
室用ファンと、前記弁装置が冷凍室冷却モードにあると
きに運転されて前記冷凍室用冷却器による冷気を前記冷
凍室内に送る冷凍室用ファンと、前記圧縮機、弁装置、
冷蔵室用ファン及び冷凍室用ファンの動作を制御するよ
うに設けられ、圧縮機を動作させた状態では上記弁装置
を前記冷蔵室冷却モード及び冷凍室冷却モードに交互に
切り替える制御を行う制御手段と、使用者が操作可能な
位置に設置された急速冷凍スイッチとを備えた上で、前
記制御手段を、前記急速冷凍スイッチが操作されたとき
に冷凍室側の冷却能力を向上させた状態を所定時間だけ
保持するという急速冷凍制御を行う構成としたものであ
る。According to the first aspect of the present invention,
A compressor for compressing the refrigerant, a refrigerator cooler for cooling the refrigerator, a refrigerator cooler for cooling the refrigerator, and a condenser after being discharged from the compressor. A valve device that switches between a refrigerator compartment cooling mode for supplying at least the supplied refrigerant to the refrigerator compartment cooler and a freezer compartment cooling mode for supplying only the refrigerator compartment cooler; And a refrigeration room fan that is operated when the chiller is in the refrigeration compartment cooler and that sends cold air from the refrigeration compartment cooler into the refrigeration compartment. A fan for a freezing room that sends the refrigerant into the freezing room, the compressor, a valve device,
Control means provided to control the operation of the refrigerator-room fan and the freezer-room fan, and performing control to alternately switch the valve device between the refrigerator-room cooling mode and the freezer-room cooling mode when the compressor is operated. And a quick refrigeration switch installed at a position operable by a user, and further comprising: changing the control means to a state in which the cooling capacity on the freezer compartment side is improved when the quick refrigeration switch is operated. It is configured to perform quick refrigeration control of holding for a predetermined time.

【０００６】この構成によれば、制御手段は、圧縮機を
動作させた状態では弁装置を冷蔵室冷却モード及び冷凍
室冷却モードに交互に切り替える制御を行う。弁装置が
冷蔵室冷却モードに切り替えられた状態では、圧縮機か
ら吐出された後に凝縮器を経て液化された冷媒が少なく
とも冷蔵室用冷却器に供給されると共に、冷蔵室用ファ
ンが運転されるようになり、これに応じて冷蔵室内の冷
却運転が行われる。また、弁装置が冷凍室冷却モードに
切り替えられた状態では、液化された冷媒が冷凍室用冷
却器のみに供給されると共に、冷凍室用ファンが運転さ
れるようになり、これに応じて冷凍室内の冷却運転が行
われる。さらに、制御手段は、急速冷凍スイッチが操作
されたときには、冷凍室側の冷却能力を向上させた状態
を所定時間だけ保持するという急速冷凍制御を行うよう
になる。[0006] According to this configuration, the control means performs control for alternately switching the valve device between the refrigerator compartment cooling mode and the freezer compartment cooling mode when the compressor is operated. When the valve device is switched to the refrigerator compartment cooling mode, the refrigerant liquefied through the condenser after being discharged from the compressor is supplied to at least the refrigerator compartment cooler, and the refrigerator compartment fan is operated. As a result, the cooling operation in the refrigerator compartment is performed accordingly. In the state where the valve device is switched to the freezer compartment cooling mode, the liquefied refrigerant is supplied only to the freezer compartment cooler, and the freezer compartment fan is operated. An indoor cooling operation is performed. Further, when the quick refrigeration switch is operated, the control means performs the quick refrigeration control of maintaining the state in which the cooling capacity on the freezer compartment side is improved for a predetermined time.

【０００７】上述のように冷蔵室内の冷却運転と冷凍室
内の冷却運転を交互に行う制御方式の場合、単位時間当
たりの冷却能力を従来構成のように大きくする必要がな
くなるから、圧縮機として能力が小さめの小形のもの
（つまり出力が小さいもの）を使用できるようになる。
また、上記のような制御が行われる場合には、圧縮機の
運転率が高くなるが、圧縮機自体の出力が小さくて済む
と共に、従来のように圧縮機の起動及び停止が頻繁に行
われることがなくなって起動ロスが小さくなるから、総
じて平均消費電力の低減を実現できるようになる。さら
に、急速冷凍スイッチを操作することにより、冷凍室内
の選択的な急速冷凍運転を確実に実行できるから、冷凍
室内に収納した食品を急速に冷凍する場合に便利にな
る。In the case of the control system in which the cooling operation in the refrigerator compartment and the cooling operation in the freezer compartment are alternately performed as described above, it is not necessary to increase the cooling capacity per unit time as in the conventional configuration. Can be used smaller (that is, output smaller).
When the above-described control is performed, the operation rate of the compressor is increased, but the output of the compressor itself is small, and the compressor is frequently started and stopped as in the related art. As a result, the startup loss is reduced, so that the average power consumption can be reduced as a whole. Further, by operating the quick freezing switch, the selective quick freezing operation in the freezing room can be reliably performed, which is convenient when the food stored in the freezing room is rapidly frozen.

【０００８】この場合、請求項２記載の発明のように、
圧縮機を、インバータ電源により駆動される電動機を内
蔵した能力可変型に構成した上で、制御手段を、急速冷
凍制御の実行時には、前記電動機の回転数を上昇させて
前記圧縮機の能力を高める制御を同時に行う構成とする
こともできる。このような構成によれば、冷凍室内の選
択的な急速冷凍運転の実行時において、冷凍室内の冷却
能力が向上するようになるから、内部に収納した食品を
さらに急速に冷凍できるようになる。In this case, as in the invention described in claim 2,
After the compressor is configured as a variable capacity type having a built-in electric motor driven by an inverter power supply, the control unit increases the rotation speed of the electric motor to increase the capacity of the compressor when performing the rapid refrigeration control. It is also possible to adopt a configuration in which control is performed simultaneously. According to such a configuration, when the selective quick freezing operation in the freezer compartment is executed, the cooling capacity in the freezer compartment is improved, so that the food stored therein can be frozen more rapidly.

【０００９】請求項３記載の発明のように、制御手段
を、急速冷凍制御時には、弁装置を予め決められた急速
冷凍時間だけ冷凍室冷却モードに切り替えた状態を保持
することにより冷凍室側の冷却能力を向上させる構成と
することもできる。このような構成によれば、冷凍室内
の選択的な急速冷凍運転を冷蔵室内の冷却運転に優先し
て所定時間だけ連続的に実行できるようになる。According to the third aspect of the present invention, the control means controls the freezing room side by maintaining the state in which the valve device is switched to the freezing room cooling mode for a predetermined quick freezing time during the quick freezing control. A configuration for improving the cooling capacity may be adopted. According to such a configuration, the selective rapid freezing operation in the freezer compartment can be performed continuously for a predetermined time prior to the cooling operation in the refrigerator compartment.

【００１０】請求項４記載の発明のように、制御手段
を、急速冷凍制御時には、弁装置を冷蔵室冷却モード及
び冷凍室冷却モードに交互に切り替える際に、冷凍室冷
却モードに切り替えた状態を通常時より長く保持するこ
とによって冷凍室側の冷却能力を向上させる構成とする
こともできる。このような構成によれば、冷凍室内の選
択的な急速冷凍運転の実行時においても、弁装置が冷蔵
室冷却モードに切り替えられる時間帯が必ず存在するか
ら、冷蔵室内温度が不用意に上昇する事態の発生を効果
的に防止できるようになる。According to a fourth aspect of the present invention, the control means controls the state in which the valve device is switched to the freezer compartment cooling mode when the valve device is alternately switched between the refrigerator compartment cooling mode and the freezer compartment cooling mode during the rapid freezing control. It is also possible to adopt a configuration in which the cooling capacity on the freezer compartment side is improved by holding the cooling chamber longer than usual. According to such a configuration, even during the execution of the selective quick refrigeration operation in the freezer compartment, there is always a time zone in which the valve device is switched to the refrigerator compartment cooling mode, so the refrigerator compartment temperature rises carelessly. The situation can be effectively prevented.

【００１１】請求項５記載の発明のように、制御手段
を、弁装置を冷凍室冷却モードに切り替えた状態で冷蔵
室内の温度が上限温度以上となったときには、当該弁装
置を冷蔵室冷却モードに切り替えると共に、その後に所
定時間が経過したとき若しくは冷蔵室内の温度が所定温
度以下に下がったときに弁装置を元の状態に復帰させる
制御を行う構成とすることもできる。この構成によれ
ば、冷凍室内の選択的な急速冷凍運転の実行時において
冷蔵室内の温度が上限温度以上に上昇する事態を確実に
防止できるようになる。According to a fifth aspect of the present invention, when the control means switches the valve device to the freezer compartment cooling mode and the temperature in the refrigerator compartment exceeds the upper limit temperature, the valve device is set to the refrigerator compartment cooling mode. And a control may be performed to return the valve device to its original state when a predetermined time has elapsed thereafter or when the temperature in the refrigerator compartment has dropped below the predetermined temperature. According to this configuration, it is possible to reliably prevent a situation in which the temperature in the refrigerator compartment rises above the upper limit temperature during the execution of the selective quick freezing operation in the refrigerator compartment.

【００１２】上記のように、弁装置を冷凍室冷却モード
に切り替えた状態で冷蔵室内の温度が上限温度以上とな
ったときには当該弁装置を冷蔵室冷却モードに切り替え
るなどの制御を行う場合には、請求項６記載の発明のよ
うに、冷凍室用ファンを可変速運転可能に構成すると共
に、制御手段を、弁装置を冷蔵室冷却モードに切り替え
た状態では前記冷凍室用ファンを高速回転させる制御を
行う構成とすることもできる。このような構成によれ
ば、冷凍室内の選択的な急速冷凍運転の実行途中で弁装
置が冷蔵室冷却モードに切り替えられた期間において、
冷凍室用冷却器からの冷気が冷凍室内で十分に循環する
ようになるから、その冷凍室内の温度が上昇する事態を
極力防止できるようになる。As described above, when the temperature of the refrigerating compartment becomes equal to or higher than the upper limit temperature while the valve device is switched to the freezer compartment cooling mode, control such as switching the valve device to the refrigerator compartment cooling mode is performed. According to the sixth aspect of the present invention, the freezing room fan is configured to be able to operate at a variable speed, and the control means controls the high speed rotation of the freezing room fan when the valve device is switched to the refrigerating room cooling mode. A configuration for performing control may be adopted. According to such a configuration, during the period in which the valve device is switched to the refrigerator compartment cooling mode during the execution of the selective quick freezing operation in the freezer compartment,
Since the cool air from the freezer compartment cooler is sufficiently circulated in the freezer compartment, a situation in which the temperature in the freezer compartment rises can be prevented as much as possible.

【００１３】上記のように、急速冷凍スイッチの操作に
応じて弁装置が冷凍室冷却モードに切り替えられた状態
においても、必要に応じて弁装置を冷蔵室冷却モードに
切り替える制御を行う場合には、請求項７記載の発明の
ように、弁装置が冷蔵室冷却モードに切り替えられた状
態では冷蔵室冷却器及び冷凍室用冷却器にこの順に液冷
媒が供給されるように構成すると共に、冷蔵室用ファン
を可変速運転可能に構成した上で、制御手段を、弁装置
を冷蔵室冷却モードに切り替えた状態では前記冷蔵室用
ファンを低速回転させる制御を行う構成とすることもで
きる。このような構成によれば、冷凍室内の選択的な急
速冷凍運転の実行時において、弁装置が冷蔵室冷却モー
ドに切り替えられた期間においても、冷凍室用冷却器に
流入する液冷媒の量が比較的多くなるように制御される
から、冷凍室内の急速冷凍冷却運転が円滑に行われるよ
うになる。As described above, even when the valve device is switched to the freezer compartment cooling mode in response to the operation of the quick refrigeration switch, if the control for switching the valve device to the refrigerator compartment cooling mode is performed as necessary, When the valve device is switched to the refrigerator compartment cooling mode, the liquid refrigerant is supplied to the refrigerator compartment cooler and the refrigerator compartment cooler in this order, and the refrigerator is cooled. After the room fan is configured to be able to operate at a variable speed, the control means may be configured to perform control to rotate the refrigerator room fan at a low speed when the valve device is switched to the refrigerator room cooling mode. According to such a configuration, during the execution of the selective quick refrigeration operation in the freezer compartment, even when the valve device is switched to the refrigerator compartment cooling mode, the amount of the liquid refrigerant flowing into the freezer compartment cooler is reduced. Since the control is performed so as to be relatively large, the rapid freezing and cooling operation in the freezing room is smoothly performed.

【００１４】請求項８記載の発明のように、圧縮機を冷
却する可変速型の圧縮機用冷却ファンを備えた上で、制
御手段を、急速冷凍制御の実行時には前記圧縮機用冷却
ファンを高速回転させる構成とすることもできる。この
ような構成によれば、冷凍室内の急速冷凍運転の実行期
間中において圧縮機の能力が高められる場合であって
も、その圧縮機の温度上昇を効果的に抑制できるように
なる。According to an eighth aspect of the present invention, a variable speed compressor cooling fan for cooling the compressor is provided, and the control means is controlled by the compressor cooling fan when the rapid refrigeration control is executed. It is also possible to adopt a configuration of rotating at high speed. According to such a configuration, even when the capacity of the compressor is increased during the execution period of the rapid refrigeration operation in the freezing chamber, the temperature rise of the compressor can be effectively suppressed.

【００１５】請求項９記載の発明は、冷媒を圧縮するた
めの圧縮機と、冷蔵室を冷却するための冷蔵室用冷却器
と、冷凍室を冷却するための冷凍室用冷却器と、前記圧
縮機から吐出された後に凝縮器を経て供給される冷媒を
少なくとも前記冷蔵室用冷却器に供給する冷蔵室冷却モ
ードと前記冷凍室用冷却器のみに供給する冷凍室冷却モ
ードとに切り替えられる弁装置と、この弁装置が冷蔵室
冷却モードにあるときに運転されて前記冷蔵室用冷却器
による冷気を前記冷蔵室内に送る冷蔵室用ファンと、前
記弁装置が冷凍室冷却モードにあるときに運転されて前
記冷凍室用冷却器による冷気を前記冷凍室内に送る冷凍
室用ファンと、前記圧縮機、弁装置、冷蔵室用ファン及
び冷凍室用ファンの動作を制御するように設けられ、圧
縮機を動作させた状態では上記弁装置を前記冷蔵室冷却
モード及び冷凍室冷却モードに交互に切り替える制御を
行う制御手段と、使用者が操作可能な位置に設置された
急速冷却スイッチとを備えた上で、前記制御手段を、前
記急速冷却スイッチが操作されたときに所定時間だけ冷
却室側の冷却能力を向上させた状態を保持するという急
速冷却制御を行う構成としたものである。According to a ninth aspect of the present invention, there is provided a compressor for compressing a refrigerant, a refrigerator cooler for cooling a refrigerator, a refrigerator cooler for cooling a freezer, A valve that switches between a refrigerator compartment cooling mode in which refrigerant supplied through a condenser after being discharged from the compressor is supplied to at least the refrigerator compartment cooler and a freezer compartment cooling mode in which only the freezer compartment cooler is supplied. A cooling unit fan that is operated when the valve device is in a refrigerator compartment cooling mode and sends cool air from the refrigerator compartment cooler into the refrigerator compartment; and a valve that is in the freezer compartment cooling mode when the valve device is in the freezer compartment cooling mode. A freezer compartment fan that is operated to send cool air from the freezer compartment cooler into the freezer compartment; and a compressor, a valve device, a refrigerating compartment fan, and a freezer compartment fan are provided to control the operation of the fan. Activated the machine In the state, the control device is provided with control means for performing control for alternately switching the valve device between the refrigerator compartment cooling mode and the freezer compartment cooling mode, and a quick cooling switch installed at a position operable by a user. The means is configured to perform quick cooling control of maintaining a state in which the cooling capacity of the cooling chamber is improved for a predetermined time when the quick cooling switch is operated.

【００１６】この構成によれば、制御手段は、圧縮機を
動作させた状態では弁装置を冷蔵室冷却モード及び冷凍
室冷却モードに交互に切り替える制御を行う。弁装置が
冷蔵室冷却モードに切り替えられた状態では、圧縮機か
ら吐出された後に凝縮器を経て液化された冷媒が少なく
とも冷蔵室用冷却器に供給されると共に、冷蔵室用ファ
ンが運転されるようになり、これに応じて冷蔵室内の冷
却運転が行われる。また、弁装置が冷凍室冷却モードに
切り替えられた状態では、液化された冷媒が冷凍室用冷
却器のみに供給されると共に、冷凍室用ファンが運転さ
れるようになり、これに応じて冷凍室内の冷却運転が行
われる。さらに、制御手段は、急速冷却スイッチが操作
されたときには、冷蔵室側の冷却能力を向上させた状態
を所定時間だけ保持するという急速冷却制御を行うよう
になる。According to this configuration, the control means performs control for alternately switching the valve device between the refrigerator compartment cooling mode and the freezer compartment cooling mode when the compressor is operated. When the valve device is switched to the refrigerator compartment cooling mode, the refrigerant liquefied through the condenser after being discharged from the compressor is supplied to at least the refrigerator compartment cooler, and the refrigerator compartment fan is operated. As a result, the cooling operation in the refrigerator compartment is performed accordingly. In the state where the valve device is switched to the freezer compartment cooling mode, the liquefied refrigerant is supplied only to the freezer compartment cooler, and the freezer compartment fan is operated. An indoor cooling operation is performed. Further, when the quick cooling switch is operated, the control means performs the quick cooling control of maintaining the state in which the cooling capacity on the refrigerator compartment side is improved for a predetermined time.

【００１７】上述のように冷蔵室内の冷却運転と冷凍室
内の冷却運転を交互に行う制御方式の場合、単位時間当
たりの冷却能力を従来構成のように大きくする必要がな
くなるから、圧縮機として能力が小さめの小形のもの
（つまり出力が小さいもの）を使用できるようになる。
また、上記のような制御が行われる場合には、圧縮機の
運転率が高くなるが、圧縮機自体の出力が小さくて済む
と共に、従来のように圧縮機の起動及び停止が頻繁に行
われることがなくなって起動ロスが小さくなるから、総
じて平均消費電力の低減を実現できるようになる。さら
に、急速冷却スイッチを操作することにより、冷蔵室内
の選択的な急速冷却運転を確実に実行できるから、冷蔵
室内を急速に冷却する場合に便利になる。In the case of the control system in which the cooling operation in the refrigerator compartment and the cooling operation in the freezer compartment are alternately performed as described above, it is not necessary to increase the cooling capacity per unit time as in the conventional configuration. Can be used smaller (that is, output smaller).
When the above-described control is performed, the operation rate of the compressor is increased, but the output of the compressor itself is small, and the compressor is frequently started and stopped as in the related art. As a result, the startup loss is reduced, so that the average power consumption can be reduced as a whole. Further, by operating the rapid cooling switch, the selective rapid cooling operation in the refrigerator compartment can be reliably performed, which is convenient when the refrigerator compartment is rapidly cooled.

【００１８】この場合、請求項１０に記載した発明のよ
うに、圧縮機を、インバータ電源により駆動される電動
機を内蔵した能力可変型に構成した上で、制御手段を、
急速冷却制御の実行時には、前記電動機の回転数を上昇
させて前記圧縮機の能力を高める制御を同時に行う構成
とすることもできる。このような構成によれば、冷蔵室
内の選択的な急速冷却運転の実行時において、冷蔵室内
の冷却能力が向上するようになるから、その内部をさら
に急速に冷却できるようになる。In this case, the compressor is configured as a variable capacity type having a built-in electric motor driven by an inverter power supply, and the control means is configured as follows.
At the time of executing the rapid cooling control, it is possible to adopt a configuration in which the control to increase the rotation speed of the electric motor to increase the capacity of the compressor is performed at the same time. According to such a configuration, the cooling capacity of the refrigerator compartment is improved during the execution of the selective rapid cooling operation in the refrigerator compartment, so that the inside of the refrigerator compartment can be cooled more rapidly.

【００１９】請求項１１記載の発明のように、制御手段
を、急速冷却制御時には、弁装置を予め決められた急速
冷却時間だけ冷蔵室冷却モードに切り替えた状態を保持
することにより冷蔵室側の冷却能力を向上させる構成と
することもできる。このような構成によれば、冷蔵室内
の選択的な急速冷却運転を冷凍室内の冷却運転に優先し
て所定時間だけ連続的に実行できるようになる。According to an eleventh aspect of the present invention, the control means controls the valve unit in the refrigerating compartment cooling mode during the rapid cooling control by maintaining the valve device in the refrigerating compartment cooling mode for a predetermined rapid cooling time. A configuration for improving the cooling capacity may be adopted. According to such a configuration, the selective rapid cooling operation in the refrigerator compartment can be executed continuously for a predetermined time prior to the cooling operation in the freezer compartment.

【００２０】請求項１２記載の発明のように、制御手段
を、急速冷却制御時には、弁装置を冷蔵室冷却モード及
び冷凍室冷却モードに交互に切り替える際に、冷蔵室冷
却モードに切り替えた状態を通常時より長く保持するこ
とによって冷蔵室側の冷却能力を向上させる構成とする
こともできる。このような構成によれば、冷蔵室内の選
択的な急速冷却運転の実行時においても、冷凍室冷却モ
ードに切り替えられる時間帯が存在するから、冷凍室内
温度が不用意に上昇する恐れがなくなる。According to the twelfth aspect of the present invention, the control means switches the state of switching to the refrigerator compartment cooling mode when the valve device is alternately switched to the refrigerator compartment cooling mode and the freezer compartment cooling mode during the rapid cooling control. It is also possible to adopt a configuration in which the cooling capacity on the refrigerator compartment side is improved by holding the cooling chamber longer than usual. According to such a configuration, even during the execution of the selective rapid cooling operation in the refrigerator compartment, there is a time period in which the refrigerator compartment mode is switched to the freezer compartment cooling mode.

【００２１】請求項１３記載の発明のように、制御手段
を、弁装置を冷蔵室冷却モードに切り替えた状態で冷凍
室内の温度が上限温度以上となったときには、当該弁装
置を冷凍室冷却モードに切り替えると共に、その後に所
定時間が経過したとき若しくは冷凍室内の温度が所定温
度以下に下がったときに弁装置を元の状態に復帰させる
制御を行う構成とすることもできる。この構成によれ
ば、冷蔵室内の選択的な急速冷却運転の実行時において
冷凍室内の温度が上限温度以上に上昇する事態を確実に
防止できるようになる。According to a thirteenth aspect of the present invention, when the temperature of the freezer compartment becomes equal to or higher than the upper limit temperature while the valve device is switched to the refrigerator compartment cooling mode, the control device controls the valve device to the freezer compartment cooling mode. And a control may be performed to return the valve device to its original state when a predetermined time has elapsed thereafter or when the temperature in the freezer compartment has dropped below the predetermined temperature. According to this configuration, it is possible to reliably prevent a situation in which the temperature in the freezer compartment rises above the upper limit temperature during the execution of the selective rapid cooling operation in the refrigerator compartment.

【００２２】上記のように、弁装置を冷蔵室冷却モード
に切り替えた状態で冷凍室内の温度が上限温度以上とな
ったときには当該弁装置を冷凍室冷却モードに切り替え
るなどの制御を行う場合には、請求項１４記載の発明の
ように、冷蔵室用ファンを可変速運転可能に構成すると
共に、制御手段を、弁装置を冷蔵室冷却モードに切り替
えた状態では前記冷蔵室用ファンを高速回転させる制御
を行う構成とすることもできる。このような構成によれ
ば、冷蔵室内の選択的な急速冷却運転の実行途中で弁装
置が冷凍室冷却モードに切り替えられた期間において、
冷蔵室用冷却器からの冷気が冷蔵室内に大量に送られる
ようになるから、その冷蔵室内の温度が上昇する事態を
極力防止できるようになる。As described above, when the temperature of the freezer compartment becomes equal to or higher than the upper limit temperature while the valve device is switched to the refrigerator compartment cooling mode, the valve device is switched to the freezer compartment cooling mode. According to a fourteenth aspect of the present invention, the refrigerating compartment fan is configured to be capable of operating at a variable speed, and the control means rotates the refrigerating compartment fan at a high speed when the valve device is switched to the refrigerating compartment cooling mode. A configuration for performing control may be adopted. According to such a configuration, during the period in which the valve device is switched to the freezer compartment cooling mode during the execution of the selective quick cooling operation in the refrigerator compartment,
Since a large amount of cold air from the refrigerator compartment cooler is sent into the refrigerator compartment, a situation in which the temperature in the refrigerator compartment rises can be prevented as much as possible.

【００２３】請求項１５記載の発明のように、圧縮機を
冷却する可変速型の圧縮機用冷却ファンを備えた上で、
制御手段を、急速冷却制御の実行時には前記圧縮機用冷
却ファンを高速回転させる構成とすることもできる。こ
のような構成によれば、冷蔵室内の急速冷却運転の実行
期間中において圧縮機の能力が高められる場合であって
も、その圧縮機の温度上昇を効果的に抑制できるように
なる。According to a fifteenth aspect of the present invention, a variable speed compressor cooling fan for cooling the compressor is provided.
The control means may be configured to rotate the compressor cooling fan at a high speed during the execution of the rapid cooling control. According to such a configuration, even when the capacity of the compressor is increased during the execution period of the rapid cooling operation in the refrigerator compartment, the rise in the temperature of the compressor can be effectively suppressed.

【００２４】[0024]

【発明の実施の形態】（第１の実施の形態）以下、本発
明の第１実施例について図１ないし図３を参照しながら
説明する。図１には冷蔵庫本体１及び冷凍サイクル２の
概略的構成が実体的に示されている。この図１におい
て、冷蔵庫本体１は、断熱箱体により構成され、その内
部は、断熱仕切壁３により上部の冷蔵室４と下部の冷凍
室５とに仕切られている。冷蔵室４内において、その奥
部には、仕切壁６により第１の冷却器室７が形成され、
下部には、仕切板８により野菜室９が形成されている。
第１の冷却器室７内の下部には、冷凍サイクル２の冷蔵
室用冷却器１０が配設されており、仕切壁６の上部に
は、吹き出し口６ａが形成されていて、この吹き出し口
６ａ部分に冷蔵室用ファン１１が配設されている。そし
て、仕切壁６の下部には、第１の冷却器室７と野菜室９
とを連通する吸い込み口６ｂが形成され、仕切板８に
は、冷蔵室４と野菜室９とを連通する連通口８ａが形成
されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 schematically shows a schematic configuration of the refrigerator main body 1 and the refrigeration cycle 2. In FIG. 1, the refrigerator main body 1 is constituted by a heat-insulating box body, and the inside thereof is partitioned by a heat-insulating partition wall 3 into an upper refrigerator compartment 4 and a lower freezer compartment 5. In the refrigeration room 4, a first cooler room 7 is formed by a partition wall 6 at the back thereof.
At the lower part, a vegetable compartment 9 is formed by a partition plate 8.
A refrigerator 10 for the refrigerator compartment of the refrigeration cycle 2 is provided in a lower part of the first cooler room 7, and a blowout port 6 a is formed in an upper part of the partition wall 6. The refrigerator compartment fan 11 is provided in the portion 6a. The first cooler room 7 and the vegetable room 9 are located below the partition wall 6.
The partition plate 8 is formed with a communication port 8a for communicating the refrigerator compartment 4 and the vegetable compartment 9 with each other.

【００２５】一方、冷凍室５内において、その奥部に
は、仕切壁１２により第２の冷却器室１３が形成されて
いて、その冷却器室１３内の下部には、冷凍サイクル２
の冷凍室用冷却器１４が配設されている。仕切壁１２の
上部には、吹き出し口１２ａが形成されていて、この吹
き出し口１２ａ部分に冷凍室用ファン１５が配設されて
いる。そして、仕切壁１２の下部には、第２の冷却器室
１３と冷凍室５とを連通する吸い込み口１２ｂが形成さ
れている。尚、冷蔵庫本体１の下部には、機械室１６が
形成されていて、この機械室１６の奥部には、冷凍サイ
クル２の圧縮機１７及びこの圧縮機１７を冷却するため
の圧縮機用冷却ファン１８が配設されている。On the other hand, in the freezer compartment 5, a second cooler compartment 13 is formed by a partition wall 12 at the back, and a lower portion of the cooler compartment 13 is provided with a refrigerating cycle 2.
Of the freezer compartment is disposed. An outlet 12a is formed in the upper part of the partition wall 12, and a freezer compartment fan 15 is disposed at the outlet 12a. In addition, a suction port 12 b that connects the second cooler room 13 and the freezing room 5 is formed in a lower portion of the partition wall 12. A machine room 16 is formed at the lower part of the refrigerator main body 1, and a compressor 17 of the refrigeration cycle 2 and a compressor cooling unit for cooling the compressor 17 are provided at the back of the machine room 16. A fan 18 is provided.

【００２６】冷凍サイクル２は、冷蔵室用冷却器１０、
冷凍室用冷却器１４及び圧縮機１７の他に、凝縮器１
９、弁装置たる三方電磁弁２０、キャピラリチューブ２
１ａ及び２１ｂを備えている。この場合、圧縮機１７の
吐出口は、凝縮器１９を介して三方電磁弁２０の入口に
連通され、三方電磁弁２０の一方の出口は、キャピラリ
チューブ２１ａ、冷蔵室用冷却器１０、連結パイプ２２
及び冷凍室用冷却器１４を介して圧縮機１７の吸入口に
連通されている。そして、三方電磁弁２０の他方の出口
は、キャピラリチューブ２１ｂを介して連結パイプ２２
の途中部位に連通されている。The refrigeration cycle 2 includes a refrigerator 10
In addition to the refrigerator cooler 14 and the compressor 17, the condenser 1
9. Three-way solenoid valve 20 as a valve device, capillary tube 2
1a and 21b. In this case, the outlet of the compressor 17 communicates with the inlet of the three-way solenoid valve 20 via the condenser 19, and one outlet of the three-way solenoid valve 20 is connected to the capillary tube 21a, the refrigerator cooler 10, the connecting pipe. 22
And, it is communicated with the suction port of the compressor 17 via the refrigerator 14 for the freezer compartment. The other outlet of the three-way solenoid valve 20 is connected to a connecting pipe 22 via a capillary tube 21b.
Is communicated with the middle part of.

【００２７】上記のような冷凍サイクル２において、三
方電磁弁２０は、圧縮機１７から吐出された後に凝縮器
１８を経て供給される冷媒を冷蔵室用冷却器１０及び冷
凍室用冷却器１４にこの順に供給する冷蔵室冷却モード
と冷凍室用冷却器１４のみに供給する冷凍室冷却モード
とに切り替えられるものである。In the refrigeration cycle 2 as described above, the three-way solenoid valve 20 transmits the refrigerant supplied from the compressor 17 through the condenser 18 to the refrigerator cooler 10 and the refrigerator cooler 14. The mode can be switched between a refrigerator compartment cooling mode for supplying the refrigerator in this order and a refrigerator compartment cooling mode for supplying only to the refrigerator cooler 14.

【００２８】尚、上述した冷蔵室用ファン１１、冷凍室
用ファン１５及び圧縮機用冷却ファン１８は、例えばタ
ップ切替によって可変速運転可能に構成されている。具
体的には、冷蔵室用ファン１１は、定常回転状態と低速
回転状態とに切り替え可能な構成になっており、また、
冷凍室用ファン１５、圧縮機用冷却ファン１８は、定常
回転状態と高速回転状態とに切り替え可能な構成になっ
ている。The above-described refrigerating compartment fan 11, freezing compartment fan 15, and compressor cooling fan 18 can be operated at a variable speed by, for example, tap switching. Specifically, the refrigerator compartment fan 11 is configured to be switchable between a steady rotation state and a low speed rotation state.
The freezer compartment fan 15 and the compressor cooling fan 18 are configured to be switchable between a steady rotation state and a high speed rotation state.

【００２９】上記のような構成によれば、圧縮機１７の
動作状態においては、当該圧縮機１７で圧縮された冷媒
が凝縮器１９で凝縮液化された後に三方電磁弁２０に与
えられる。このとき、三方電磁弁２０が冷凍室冷却モー
ドに切り替えられていた場合には、上記冷媒がキャピラ
リチューブ２１ｂを介して冷凍室用冷却器１４のみに供
給されるようになり、その冷凍室用冷却器１４で蒸発し
た後に圧縮機１７に戻るようになる。このような状態で
は、後述の説明から明らかとなるように冷凍室用ファン
１５が動作されるようになっており、この冷凍室用ファ
ン１５の送風作用により、冷凍室用冷却器１４による冷
気は、図１中に矢印Ｆで示すように、第２の冷却器室１
３から吹き出し口１２ａを通じて冷凍室５内に供給され
た後に、吸い込み口１２ｂを通じて当該冷却器室１２へ
戻るようになり、これにより冷凍室５内の冷却運転が行
われる。According to the above configuration, in the operating state of the compressor 17, the refrigerant compressed by the compressor 17 is condensed and liquefied by the condenser 19 and then supplied to the three-way solenoid valve 20. At this time, if the three-way solenoid valve 20 has been switched to the freezer compartment cooling mode, the refrigerant is supplied only to the freezer compartment cooler 14 via the capillary tube 21b, and the freezer compartment cooling is performed. After the evaporator 14 evaporates, it returns to the compressor 17. In such a state, as will be clear from the description below, the freezing room fan 15 is operated. By the blowing action of the freezing room fan 15, the cool air by the freezing room cooler 14 is cooled. , As indicated by arrow F in FIG.
After being supplied into the freezer compartment 5 from the outlet 3 through the outlet 12a, the air returns to the cooler room 12 through the inlet 12b, whereby the cooling operation in the freezer compartment 5 is performed.

【００３０】また、圧縮機１７の動作状態において、三
方電磁弁２０が冷蔵室冷却モードに切り替えられていた
場合には、後述するように圧縮機１７の吐出能力が冷凍
室冷却モード時より高められると共に、その圧縮機１７
から吐出された後に凝縮器１９を経て液化された冷媒
が、キャピラリチューブ２１ａを介して冷蔵室用冷却器
１０及び冷凍室用冷却器１４にこの順に供給されるよう
になる。このとき、上記液冷媒の量は、主に冷蔵室用冷
却器１０で蒸発した後にここで蒸発しきれなかった比較
的少ない液冷媒が冷凍室用冷却器１４で蒸発するように
なっており、この蒸発後に圧縮機１７に戻るようにな
る。このような状態では、後述の説明から明らかとなる
ように冷蔵室用ファン１１が動作されるようになってお
り、この冷蔵室用ファン１１の送風作用により、冷蔵室
用冷却器１０による冷気は、図１中に矢印Ｒで示すよう
に、第１の冷却器室７から吹き出し口６ａを通じて冷凍
室５内に供給された後に、連通口８ａを通じて野菜室９
内に流入し、さらにこの後に吸い込み口６ｂを通じて当
該冷却器室７へ戻るようになり、これにより冷蔵室４及
び野菜室９内の冷却運転が行われる。When the three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode in the operation state of the compressor 17, the discharge capacity of the compressor 17 is increased from that in the freezer compartment cooling mode as described later. With the compressor 17
The refrigerant liquefied after passing through the condenser 19 through the condenser 19 is supplied to the refrigerator cooler 10 and the refrigerator cooler 14 in this order via the capillary tube 21a. At this time, the amount of the liquid refrigerant is such that a relatively small amount of the liquid refrigerant, which has not been completely evaporated after evaporating mainly in the refrigerator compartment cooler 10, evaporates in the refrigerator compartment cooler 14, After this evaporation, it returns to the compressor 17. In such a state, as will be apparent from the following description, the refrigerator compartment fan 11 is operated. By the blowing action of the refrigerator compartment fan 11, the cool air from the refrigerator compartment cooler 10 is cooled. As shown by an arrow R in FIG. 1, after being supplied from the first cooler chamber 7 into the freezing compartment 5 through the outlet 6a, the vegetable compartment 9 is communicated through the communication port 8a.
And then returns to the cooler room 7 through the suction port 6b, whereby the cooling operation in the refrigerator room 4 and the vegetable room 9 is performed.

【００３１】図２には、概略的な電気的構成が機能ブロ
ックの組み合わせによって示されている。即ち、図２に
おいて、冷蔵室温度センサ２３は、冷蔵室４内の温度を
検出する例えばサーミスタから成り、冷凍室温度センサ
２４は、冷凍室５内の温度を検出する例えばサーミスタ
から成るものであり、その温度検出信号をマイクロコン
ピュータを主体として構成された制御回路２５（本発明
でいう制御手段に相当）の入力ポートに与えるように接
続されている。また、急速冷凍スイッチ２６は、使用者
が操作可能な位置（例えば図示しない冷蔵室用ドアの前
面側の位置）に設けられたモーメンタリ形のもので、そ
のオン信号を制御回路２５の入力ポートに与えるように
接続されている。FIG. 2 shows a schematic electrical configuration by a combination of functional blocks. That is, in FIG. 2, the refrigerating compartment temperature sensor 23 comprises, for example, a thermistor for detecting the temperature in the refrigerating compartment 4, and the freezing compartment temperature sensor 24 comprises, for example, a thermistor for detecting the temperature in the freezing compartment 5. Are connected so as to supply the temperature detection signal to an input port of a control circuit 25 (corresponding to control means in the present invention) mainly constituted by a microcomputer. The quick refrigeration switch 26 is a momentary type provided at a position operable by a user (for example, a position on the front side of a refrigerator door (not shown)), and outputs an ON signal to an input port of the control circuit 25. Connected to give.

【００３２】制御回路２５の出力ポートには、可変電圧
・可変周波数のインバータ回路２７（本発明でいうイン
バータ電源に相当）と、前記三方電磁弁２０、冷蔵室用
ファン１１、冷凍室用ファン１５及び圧縮機用冷却ファ
ン１８をそれぞれ駆動するための駆動回路２８とが接続
されている。この場合、圧縮機１７は、インバータ回路
２７により可変速駆動される電動機１７Ｍを内蔵した能
力可変型に構成されている。The output port of the control circuit 25 has a variable voltage / variable frequency inverter circuit 27 (corresponding to an inverter power supply in the present invention), the three-way solenoid valve 20, the refrigerator compartment fan 11, and the freezer compartment fan 15. And a drive circuit 28 for driving the compressor cooling fan 18, respectively. In this case, the compressor 17 is configured as a variable capacity type having a built-in electric motor 17M driven at a variable speed by the inverter circuit 27.

【００３３】図３のフローチャートには、前記制御回路
２５による制御内容が本発明の要旨に関係した部分を中
心に示されており、以下これについて関連した作用と共
に説明する。The flowchart of FIG. 3 shows the contents of the control by the control circuit 25, focusing on the parts related to the gist of the present invention.

【００３４】制御回路２５は、急速冷凍スイッチ２６の
オン操作が行われていない常時においては、通常運転ル
ーチンＡ１を実行する。このルーチンＡ１では、例え
ば、以下〜に述べるような制御を実行することによ
り、冷蔵室４（及び野菜室９）並びに冷凍室５をそれぞ
れに設定された温度となるように冷却する。The control circuit 25 executes the normal operation routine A1 at all times when the quick refrigeration switch 26 is not turned on. In this routine A1, for example, by executing the following control, the refrigerator compartment 4 (and the vegetable compartment 9) and the freezer compartment 5 are cooled to the respective set temperatures.

【００３５】 冷蔵室４内及び冷凍室５内の各温度の
少なくとも一方が設定上限温度（冷蔵室上限温度は例え
ば５℃、冷凍室上限温度は例えば−１８℃）を越えたと
きには、圧縮機１７及び圧縮機用冷却ファン１８を動作
開始させる。この場合に、冷蔵室４内及び冷凍室５内の
各温度が双方とも設定上限温度を越えている状態では、
三方電磁弁２０を冷蔵室冷却モード及び冷凍室冷却モー
ドの何れかに所定時間毎（例えば冷蔵室冷却モードが１
０分、冷凍室冷却モードが１５分）に交互に切り替える
と共に、これに連動して冷蔵室用ファン１１及び冷凍室
用ファン１５を交互に動作させ、以て冷蔵室４内及び冷
凍室５内の冷却運転を交互に行う。また、冷蔵室４のみ
が設定上限温度を越えている状態では、三方電磁弁２０
を冷蔵室冷却モードに切り替えて冷蔵室４内の冷却運転
を行い、冷凍室５のみが設定上限温度を越えている状態
では、三方電磁弁２０を冷凍室冷却モードに切り替えて
冷凍室５内の冷却運転を行う。When at least one of the temperatures in the refrigerator compartment 4 and the freezer compartment 5 exceeds a set upper limit temperature (the refrigerator compartment upper limit temperature is, for example, 5 ° C., and the freezer compartment upper limit temperature is, for example, −18 ° C.), the compressor 17 Then, the operation of the compressor cooling fan 18 is started. In this case, in a state where the respective temperatures in the refrigerator compartment 4 and the freezer compartment 5 both exceed the set upper limit temperature,
The three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode or the freezer compartment cooling mode at predetermined time intervals (for example, when the refrigerator compartment cooling mode is set to 1).
0 minutes, and the freezer compartment cooling mode is alternately switched to 15 minutes), and the refrigerator compartment fan 11 and the freezer compartment fan 15 are alternately operated in conjunction with this, whereby the inside of the refrigerator compartment 4 and the inside of the freezer compartment 5 are operated. Are alternately performed. When only the refrigerator compartment 4 exceeds the set upper limit temperature, the three-way solenoid valve 20
Is switched to the refrigerator compartment cooling mode to perform a cooling operation in the refrigerator compartment 4, and in a state where only the freezer compartment 5 exceeds the set upper limit temperature, the three-way solenoid valve 20 is switched to the freezer compartment cooling mode to switch the inside of the refrigerator compartment 5 to the freezing compartment cooling mode. Perform cooling operation.

【００３６】 この場合、冷蔵室４の冷却運転時に
は、圧縮機１７の吐出能力をインバータ回路２７を通じ
て相対的に高くなるように制御し、冷凍室５の冷却運転
時には、圧縮機１７の吐出能力をインバータ回路２７を
通じて相対的に低くなるように制御する。また、圧縮機
１７の吐出能力を、負荷が小さくなるのに応じて複数段
階に低くする制御も同時に行う。尚、負荷の大小は、例
えば庫内温度の変化率に基づいて判断できる。In this case, the discharge capacity of the compressor 17 is controlled to be relatively high through the inverter circuit 27 during the cooling operation of the refrigerator compartment 4, and the discharge capacity of the compressor 17 is controlled during the cooling operation of the freezer compartment 5. Control is performed through the inverter circuit 27 so as to be relatively low. Further, control is also performed to reduce the discharge capacity of the compressor 17 in a plurality of stages as the load decreases. The magnitude of the load can be determined based on, for example, the rate of change of the internal temperature.

【００３７】 上記のような交互冷却運転に応じて、
冷蔵室４内の温度が設定下限温度（例えば１℃）以下に
下がったときには、三方電磁弁２０を冷凍室冷却モード
に保持すると共に、冷凍室用ファン１５の運転を継続す
ることにより、冷凍室５の冷却運転を続行し、冷凍室５
内の温度が設定下限温度（例えば−２２℃）以下に下が
ったときには、三方電磁弁２０を冷蔵室冷却モードに保
持すると共に、冷蔵室用ファン１１の運転を継続するこ
とにより、冷蔵室４の冷却運転を実行する。この後に、
冷蔵室４及び冷凍室５内の各温度が双方とも設定下限温
度以下に下がったときには、圧縮機１７及び圧縮機用冷
却ファン１８を動作停止させる（冷蔵室用ファン１１及
び冷凍室用ファン１５も停止）。According to the alternate cooling operation as described above,
When the temperature in the refrigerator compartment 4 drops below the set lower limit temperature (for example, 1 ° C.), the three-way solenoid valve 20 is kept in the refrigerator compartment cooling mode and the operation of the refrigerator compartment fan 15 is continued, so that the refrigerator compartment is operated. 5 cooling operation is continued,
When the internal temperature falls below the set lower limit temperature (for example, −22 ° C.), the three-way solenoid valve 20 is maintained in the refrigerator compartment cooling mode, and the operation of the refrigerator compartment fan 11 is continued, so that the refrigerator compartment 4 is cooled. Execute the cooling operation. After this,
When both the temperatures in the refrigerator compartment 4 and the freezer compartment 5 have fallen below the set lower limit temperature, the operation of the compressor 17 and the compressor cooling fan 18 is stopped (the refrigerator compartment fan 11 and the freezer compartment fan 15 also operate). Stop).

【００３８】以上のような通常運転ルーチンＡ１の実行
状態では急速冷凍スイッチ２６がオンされたか否かを判
断しており（ステップＡ２）、ここで「ＹＥＳ」と判断
した場合には、通常運転ルーチンＡ１から抜け出して三
方電磁弁２０を強制的に冷凍室冷却モードに切り替える
ステップＡ３を実行する。尚、このステップＡ３におい
ては、冷蔵室用ファン１１が動作されていた場合にこれ
を動作停止させる制御も行う。In the execution state of the normal operation routine A1 as described above, it is determined whether or not the quick refrigerating switch 26 is turned on (step A2). If "YES" is determined here, the normal operation routine is executed. Step A3 is executed to exit from A1 and forcibly switch the three-way solenoid valve 20 to the freezer compartment cooling mode. In this step A3, control is also performed to stop the operation of the refrigerator compartment fan 11 if it has been operating.

【００３９】次いで、圧縮機１７の運転時間ΣＴの積算
を開始するステップＡ４、インバータ回路２７を通じて
電動機１７Ｍの高速回転を開始させて圧縮機１７の吐出
能力を高めるステップＡ５、駆動回路２８を通じて冷凍
室用ファン１５及び圧縮機用冷却ファン１８の高速回転
を開始させるステップＡ６を順次実行した後に、冷蔵室
用温度センサ２３からの温度検出信号により示される冷
蔵室４内の温度を読み込むステップＡ７を実行する。Next, a step A4 for starting the accumulation of the operation time ΔT of the compressor 17, a step A5 for starting the high-speed rotation of the motor 17M through the inverter circuit 27 to increase the discharge capacity of the compressor 17, and a freezing room through the drive circuit 28. A7 for reading the temperature in the refrigerator compartment 4 indicated by the temperature detection signal from the refrigerator compartment temperature sensor 23 after executing Step A6 for starting the high-speed rotation of the cooling fan 15 and the compressor cooling fan 18 sequentially. I do.

【００４０】この後には、上記ステップＡ７において読
み込んだ温度が冷蔵室４の設定上限温度以上であるか否
かを判断する（ステップＡ８）。このステップＡ８で
「ＮＯ」と判断した場合には、前記積算運転時間ΣＴが
予め設定された急速冷凍時間Ｔ（例えば１５０分）に達
したか否かを判断し（ステップＡ９）、ここで「ＮＯ」
と判断した場合にはステップＡ７へ戻るが、「ＹＥＳ」
と判断した場合には通常運転ルーチンＡ１へ戻る。Thereafter, it is determined whether or not the temperature read in step A7 is equal to or higher than the set upper limit temperature of the refrigerator compartment 4 (step A8). If "NO" is determined in this step A8, it is determined whether or not the integrated operation time ΔT has reached a preset quick refrigeration time T (for example, 150 minutes) (step A9). NO "
If it is determined, the process returns to step A7, but "YES".
When the determination is made, the process returns to the normal operation routine A1.

【００４１】以上のような制御（ステップＡ２〜Ａ９）
が行われる結果、急速冷凍スイッチ２６がオン操作され
たときには、冷凍室５内の急速冷凍運転が開始されると
共に、その急速冷凍運転期間中において冷蔵室４内の温
度が設定上限温度以下に継続的に保たれていた場合に
は、当該急速冷凍運転が予め設定された急速冷凍運転時
間だけ継続されたときに通常の運転状態に戻るものであ
る。Control as described above (steps A2 to A9)
As a result, when the quick refrigeration switch 26 is turned on, the quick refrigeration operation in the freezing room 5 is started, and the temperature in the refrigeration room 4 is kept below the set upper limit temperature during the quick refrigeration operation period. If the quick refrigeration operation is continued for a predetermined quick refrigeration operation time, the operation returns to the normal operation state.

【００４２】一方、前記ステップＡ８で「ＹＥＳ」と判
断した場合、つまり、冷凍室５内の急速冷凍運転期間中
において冷蔵室４内の温度が設定上限温度を越えて上昇
したときには、圧縮機１７の運転時間ΣＴの積算を一時
停止するステップＡ１０、三方電磁弁２０を冷蔵室冷却
モードに切り替えるステップＡ１１、冷蔵室用ファン１
１の低速回転を開始させるステップＡ１２を順次実行し
た後に、冷蔵室用温度センサ２３からの温度検出信号に
より示される冷蔵室４内の温度を読み込むステップＡ１
３を実行する。尚、この場合において、圧縮機１７用の
電動機１７Ｍ、冷凍室用ファン１５及び圧縮機用冷却フ
ァン１８は、その高速回転が継続されたままとなる。On the other hand, if "YES" is determined in step A8, that is, if the temperature in the refrigerator compartment 4 exceeds the set upper limit temperature during the rapid freezing operation in the refrigerator compartment 5, the compressor 17 A10 to temporarily stop the accumulation of the operation time ΔT of step A10, step A11 to switch the three-way solenoid valve 20 to the refrigerator compartment cooling mode, fan 1 for the refrigerator compartment
Step A1 for sequentially starting Step A12 for starting the low-speed rotation of Step 1 and reading the temperature in the refrigerator compartment 4 indicated by the temperature detection signal from the refrigerator compartment temperature sensor 23.
Execute 3. In this case, the high-speed rotation of the electric motor 17M for the compressor 17, the fan 15 for the freezer compartment, and the cooling fan 18 for the compressor is continued.

【００４３】この後には、上記ステップＡ７において読
み込んだ温度が所定温度Ｄｎ以下に下がったか否かを判
断する（ステップＡ１４）。尚、上記温度Ｄｎは、冷蔵
室４の設定上限温度（５℃）よりある程度低く且つ設定
下限温度（１℃）以上の適宜な値に設定されるものであ
る。上記ステップＡ１４で「ＮＯ」と判断した場合には
ステップＡ１３へ戻るが、「ＹＥＳ」と判断した場合に
は、三方電磁弁２０を冷凍室冷却モードに復帰させるス
テップＡ１５、冷蔵室用ファン１１を回転停止させるス
テップＡ１６、圧縮機１７の運転時間ΣＴの積算を再開
するステップＡ１７を順次実行した後に前記ステップＡ
９へ戻る。Thereafter, it is determined whether or not the temperature read in step A7 has dropped below the predetermined temperature Dn (step A14). The temperature Dn is set to an appropriate value that is somewhat lower than the set upper limit temperature (5 ° C.) of the refrigerator compartment 4 and equal to or higher than the set lower limit temperature (1 ° C.). If “NO” is determined in step A14, the process returns to step A13. If “YES” is determined, step A15 of returning the three-way solenoid valve 20 to the freezer compartment cooling mode is performed. After the step A16 of stopping the rotation and the step A17 of restarting the integration of the operation time ΔT of the compressor 17 are sequentially executed, the step A16 is performed.
Return to 9.

【００４４】以上述べた制御（ステップＡ８〜Ａ１７）
が行われる結果、冷凍室５内の急速冷凍運転中において
冷蔵室４内の温度が設定上限温度を越えて上昇したとき
には、当該急速冷凍運転が一時的に中断されて冷蔵室４
内の冷却運転が行われるものであり、この冷却運転によ
り冷蔵室４内の温度が所定の設定温度Ｄｎまで下がった
ときに、冷凍室５内の急速冷凍運転が再開されることに
なる。The control described above (steps A8 to A17)
As a result, when the temperature in the refrigeration compartment 4 rises above the set upper limit temperature during the rapid refrigeration operation in the freezer compartment 5, the rapid refrigeration operation is temporarily interrupted and the refrigeration compartment 4 is stopped.
When the temperature in the refrigerating compartment 4 decreases to a predetermined set temperature Dn by the cooling operation, the rapid refrigerating operation in the freezing compartment 5 is restarted.

【００４５】上記のような構成した本実施例によれば、
制御回路２５によって、冷蔵室４内の冷却運転と冷凍室
５内の冷却運転が交互に行われるように制御されるもの
であるが、このような制御方式の場合、単位時間当たり
の冷却能力を従来構成のように大きくする必要がなくな
るから、圧縮機１７として能力が小さめの小形のもの
（つまり出力が小さいもの）を使用できるようになる。
また、上記のような制御が行われる場合には、圧縮機１
７の運転率が高くなるが、圧縮機１７自体の出力が小さ
くて済むと共に、従来のように圧縮機１７の起動及び停
止が頻繁に行われることがなくなって起動ロスが小さく
なるから、総じて平均消費電力の低減を実現できるよう
になる。According to the present embodiment configured as described above,
The control circuit 25 controls the cooling operation in the refrigerator compartment 4 and the cooling operation in the freezer compartment 5 alternately. In such a control method, the cooling capacity per unit time is reduced. Since the compressor 17 does not need to be increased as in the conventional configuration, a small compressor having a small capacity (that is, a compressor having a small output) can be used as the compressor 17.
When the above control is performed, the compressor 1
7, the output of the compressor 17 itself can be reduced, and the start-up and stop of the compressor 17 are not frequently performed as in the related art, so that the start-up loss is reduced. Power consumption can be reduced.

【００４６】そして、急速冷凍スイッチ２６が操作され
たときには、制御回路２５が、圧縮機１７から吐出され
た後に凝縮器１９などを経て液化された冷媒を冷凍室用
冷却器１４のみに供給すると共に、冷凍室用ファン１５
を高速回転させるという急速冷凍制御が実行する構成と
なっているから、冷凍室５内の選択的な急速冷凍運転を
確実に実行できるようになって、冷凍室５内に収納した
食品を急速に冷凍する場合に便利になる。この場合、上
記のような急速冷凍制御の実行時には、電動機１７Ｍの
回転数を上昇させて圧縮機１７の吐出能力を高める制御
が同時に行われるから、冷凍室５内の選択的な急速冷凍
運転の実行時において、その冷凍室５内の冷却能力が向
上するようになって、内部に収納した食品をさらに急速
に冷凍できるようになる。しかも、急速冷凍制御の実行
時には圧縮機用冷却ファン１８が高速回転される構成と
なっているから、上記のように圧縮機１７の吐出能力を
高める制御が行われる場合であっても、その圧縮機１７
の温度上昇を効果的に抑制できるようになる。When the quick refrigerating switch 26 is operated, the control circuit 25 supplies the liquefied refrigerant discharged from the compressor 17 through the condenser 19 and the like to only the freezer compartment cooler 14 and , Freezer fan 15
Is configured to execute the rapid refrigeration control of rotating the refrigeration compartment at a high speed, so that the selective rapid refrigeration operation in the freezing compartment 5 can be reliably executed, and the food stored in the freezing compartment 5 can be quickly removed. It becomes convenient when frozen. In this case, when the above-described quick refrigeration control is executed, the control for increasing the rotation speed of the electric motor 17M and increasing the discharge capacity of the compressor 17 is simultaneously performed. At the time of execution, the cooling capacity in the freezing compartment 5 is improved, and the food stored therein can be frozen more rapidly. In addition, since the compressor cooling fan 18 is rotated at a high speed during the rapid refrigeration control, even if the control for increasing the discharge capacity of the compressor 17 is performed as described above, the compression is Machine 17
Temperature rise can be effectively suppressed.

【００４７】また、制御回路２５による急速冷凍制御時
には、三方電磁弁２０を予め決められた急速冷凍時間Ｔ
だけ冷凍室冷却モードに切り替えた状態を保持すること
により冷凍室５側の冷却能力を向上させる構成となって
いるから、冷凍室５内の選択的な急速冷凍運転を冷蔵室
４内の冷却運転に優先して所定時間だけ連続的に実行で
きるようになり、結果的に、急速冷凍効果を高める上で
有益となる。During the quick refrigeration control by the control circuit 25, the three-way solenoid valve 20 is set to a predetermined quick refrigeration time T.
Only by maintaining the state switched to the freezer compartment cooling mode, the cooling capacity of the freezer compartment 5 is improved, so that the selective rapid freezing operation in the freezer compartment 5 is changed to the cooling operation in the refrigerator compartment 4. , And can be continuously executed for a predetermined time, and as a result, it is useful in enhancing the quick freezing effect.

【００４８】さらに、制御回路２５は、三方電磁弁２０
を冷凍室冷却モードに切り替えた状態（急速冷凍運転の
実行状態）で冷蔵室４内の温度が設定上限温度以上とな
ったときには、当該三方電磁弁２０を冷蔵室冷却モード
に切り替えると共に、その後に冷蔵室４内の温度が所定
温度Ｄｎ以下に下がったときに三方電磁弁２０を元の状
態に復帰させる制御を行う構成となっているから、冷凍
室５内の選択的な急速冷凍運転の実行時において冷蔵室
４内の温度が設定上限温度以上に上昇する事態を確実に
防止できるようになる。Further, the control circuit 25 controls the three-way solenoid valve 20
When the temperature in the refrigerator compartment 4 becomes equal to or higher than the set upper limit temperature in a state in which the three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode (in the state of executing the rapid freezing operation), the three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode, When the temperature in the refrigerator compartment 4 falls below the predetermined temperature Dn, the three-way solenoid valve 20 is controlled to return to the original state, so that the selective quick refrigeration operation in the refrigerator compartment 5 is executed. At this time, it is possible to reliably prevent a situation where the temperature in the refrigerator compartment 4 rises above the set upper limit temperature.

【００４９】しかも、このように急速冷凍運転の実行時
において、冷蔵室４内の温度上昇に応じて三方電磁弁２
０が冷蔵室冷却モードに切り替えられた場合、つまり冷
凍室５の冷却運転が停止された場合には、冷凍室用ファ
ン１５が高速回転される構成となっているから、冷凍室
用冷却器１４からの冷気が冷凍室５内で十分に循環する
ようになって、その冷凍室５内の温度が上昇する事態を
極力防止できるようになる。In addition, during the execution of the rapid freezing operation as described above, the three-way solenoid valve 2
0 is switched to the refrigerator compartment cooling mode, that is, when the cooling operation of the freezer compartment 5 is stopped, the freezer compartment fan 15 is configured to rotate at a high speed. Is sufficiently circulated in the freezing room 5 to prevent the temperature in the freezing room 5 from rising as much as possible.

【００５０】また、上記のように三方電磁弁２０が冷蔵
室冷却モードに切り替えられた状態では冷蔵室冷却器１
０及び冷凍室用冷却器１４にこの順に液冷媒が供給され
ると共に、冷蔵室用ファン１１が低速回転される構成と
なっているから、冷凍室５内の選択的な急速冷凍運転の
実行時において、三方電磁弁２０が冷蔵室冷却モードに
切り替えられた期間においても、冷凍室用冷却器１４に
流入する液冷媒の量が比較的多くなるように制御される
ようになって、冷凍室５内の急速冷凍冷却運転が円滑に
行われるようになる。When the three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode as described above, the refrigerator compartment cooler 1
0 and the freezer compartment cooler 14 are supplied with liquid refrigerant in this order, and the refrigerating compartment fan 11 is rotated at a low speed. In the above, even during the period in which the three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode, the amount of liquid refrigerant flowing into the refrigerator compartment cooler 14 is controlled to be relatively large, and The quick refrigeration / cooling operation inside is smoothly performed.

【００５１】尚、図３に示した制御例では、ステップＡ
１４において冷蔵室４内が設定温度Ｄｎまで下がったと
判断したときに冷凍室５内の急速冷凍運転を再開させる
構成としたが、冷凍室５内の急速冷凍運転を中断して冷
蔵室４の冷却運転を開始させた後に予め設定された所定
時間が経過したときに、当該急速冷凍運転を再開させる
構成としても良い。In the control example shown in FIG.
When it is determined at 14 that the inside of the refrigerator compartment 4 has dropped to the set temperature Dn, the quick freezing operation in the freezer compartment 5 is restarted. However, the quick freezing operation in the freezer compartment 5 is interrupted to cool the refrigerator compartment 4. The configuration may be such that the quick refrigeration operation is restarted when a predetermined period of time elapses after the operation is started.

【００５２】（第２の実施の形態）図４には本発明の第
２実施例が示されており、以下これについて前記第１実
施例と異なる部分のみ説明する。即ち、本実施例は、制
御回路２５による制御内容に変更を加えたことに特徴を
有するものであり、図４には、その制御内容がフローチ
ャートにより示されている。尚、図４においては、前記
図３のフローチャートと同一のルーチン及びステップに
は同一記号を付した状態としている。(Second Embodiment) FIG. 4 shows a second embodiment of the present invention. Hereinafter, only portions different from the first embodiment will be described. That is, the present embodiment is characterized in that the control content of the control circuit 25 is changed, and FIG. 4 shows the control content in a flowchart. In FIG. 4, the same routines and steps as those in the flowchart of FIG. 3 are denoted by the same reference numerals.

【００５３】図４において、制御回路２５は、急速冷凍
スイッチ２６のオン操作が行われていない常時において
は、第１実施例で述べた内容の通常運転ルーチンＡ１を
実行する。この通常運転ルーチンＡ１の実行状態では急
速冷凍スイッチ２６がオンされたか否かを判断しており
（ステップＡ２）、ここで「ＹＥＳ」と判断した場合に
は、通常運転ルーチンＡ１から抜け出して三方電磁弁２
０を強制的に冷凍室冷却モードに切り替えるステップＡ
３、圧縮機１７の運転時間ΣＴの積算を開始するステッ
プＡ４、冷凍室冷却時間ΣＴＦの積算を開始するステッ
プＢ１、インバータ回路２７を通じて電動機１７Ｍの高
速回転を開始させて圧縮機１７の吐出能力を高めるステ
ップＡ５、駆動回路２８を通じて冷凍室用ファン１５及
び圧縮機用冷却ファン１８の高速回転を開始させるステ
ップＡ６を順次実行した後に、冷蔵室用温度センサ２３
からの温度検出信号により示される冷蔵室４内の温度を
読み込むステップＡ７を実行する。In FIG. 4, the control circuit 25 executes the normal operation routine A1 described in the first embodiment at all times when the quick refrigeration switch 26 is not turned on. In the execution state of the normal operation routine A1, it is determined whether or not the quick refrigeration switch 26 is turned on (step A2). If "YES" is determined here, the process exits from the normal operation routine A1 to perform three-way electromagnetic control. Valve 2
Step A for forcibly switching 0 to the freezer compartment cooling mode
3. Step A4 of starting the accumulation of the operation time ΔT of the compressor 17; Step B1 of starting the accumulation of the freezing room cooling time ΔTF; and starting the high-speed rotation of the motor 17M through the inverter circuit 27 to reduce the discharge capacity of the compressor 17. After the step A5 for increasing the rotation speed of the freezer compartment fan 15 and the high-speed rotation of the compressor cooling fan 18 through the drive circuit 28, the temperature sensor 23 for the refrigerator compartment,
The step A7 of reading the temperature in the refrigerator compartment 4 indicated by the temperature detection signal from the CPU is executed.

【００５４】この後には、上記ステップＡ７において読
み込んだ温度が冷蔵室４の設定上限温度以上であるか否
かを判断する（ステップＡ８）。このステップＡ８で
「ＮＯ」と判断した場合には、積算動作中の前記冷凍室
冷却時間ΣＴＦが予め設定された分割運転時間ΔＴ１
（例えば３０分〜６０分程度）に達したか否かを判断す
る（ステップＢ２）、ここで「ＮＯ」と判断した場合に
はステップＡ７へ戻るが、「ＹＥＳ」と判断した場合に
は上記冷凍室冷却時間ΣＴＦを初期化し（ステップＢ
３）、この後に前記積算運転時間ΣＴが予め設定された
急速冷凍時間Ｔ（１５０分）に達したか否かを判断する
ステップＡ９を実行する。このステップＡ９で「ＹＥ
Ｓ」と判断した場合には通常運転ルーチンＡ１へ戻る
が、「ＮＯ」と判断した場合には、後述するステップＢ
５へ移行する。Thereafter, it is determined whether or not the temperature read in step A7 is equal to or higher than the set upper limit temperature of the refrigerator compartment 4 (step A8). If “NO” is determined in this step A8, the freezing room cooling time ΔTF during the integration operation is set to the preset divided operation time ΔT1.
(E.g., about 30 to 60 minutes) is determined (step B2). If "NO" is determined here, the process returns to step A7. Initialize the freezing room cooling time ΔTF (step B
3) Thereafter, step A9 is executed for determining whether or not the accumulated operation time ΔT has reached a preset rapid freezing time T (150 minutes). In this step A9, "YE
If the determination is "S", the process returns to the normal operation routine A1.
Go to 5.

【００５５】また、前記ステップＡ８で「ＹＥＳ」と判
断した場合、つまり、冷凍室５内の急速冷凍運転期間中
において冷蔵室４内の温度が設定上限温度を越えて上昇
したときには、冷凍室温度保証制御ルーチンＢ４を実行
した後に前記ステップＢ２へ移行する。この冷凍室温度
保証制御ルーチンＢ４は、第１実施例の図３中における
ステップＡ１０〜Ａ１７を含むものであり、これによ
り、冷凍室５内の急速冷凍運転の実行実行時において冷
蔵室４内の温度が設定上限温度以上に上昇する事態を防
止するようにしている。When the determination in step A8 is "YES", that is, when the temperature in the refrigerator compartment 4 exceeds the set upper limit temperature during the rapid freezing operation in the refrigerator compartment 5, the freezer compartment temperature increases. After executing the guarantee control routine B4, the process proceeds to step B2. The freezing room temperature assurance control routine B4 includes steps A10 to A17 in FIG. 3 of the first embodiment, whereby the execution of the rapid freezing operation in the freezing room 5 causes The temperature is prevented from rising above the set upper limit temperature.

【００５６】前記ステップＢ５では、三方電磁弁２０を
冷蔵室冷却モードに切り替える制御を行うものであり、
この後には、冷蔵室用ファン１１の低速回転を開始させ
るステップＢ６、冷蔵室冷却時間ΣＴＲの積算を開始す
るステップＢ７を順次実行した後に、冷蔵室用温度セン
サ２３からの温度検出信号により示される冷蔵室４内の
温度を読み込むステップＢ８を実行する。In the step B5, control is performed to switch the three-way solenoid valve 20 to the refrigerator compartment cooling mode.
Thereafter, after the step B6 for starting the low speed rotation of the refrigerator compartment fan 11 and the step B7 for starting the accumulation of the refrigerator compartment cooling time ΔTR are sequentially executed, the temperature is indicated by the temperature detection signal from the refrigerator compartment temperature sensor 23. Step B8 of reading the temperature in the refrigerator compartment 4 is executed.

【００５７】この後には、上記ステップＢ８において読
み込んだ温度が冷蔵室４の設定下限温度以下であるか否
かを判断する（ステップＢ９）。このステップＢ９で
「ＹＥＳ」と判断した場合には前記ステップＡ３へ移行
するが、「ＮＯ」と判断した場合には、積算動作中の前
記冷蔵室冷却時間ΣＴＲが予め設定された分割運転時間
ΔＴ２（例えば１０分）に達したか否かを判断する（ス
テップＢ１０）。ここで「ＮＯ」と判断した場合にはス
テップＢ８へ戻るが、「ＹＥＳ」と判断した場合には上
記冷蔵室冷却時間ΣＴＲを初期化するステップＢ１１、
冷蔵室用ファン１１の回転を停止させるステップＢ１２
を順次実行した後にステップＢ３へ移行する。Thereafter, it is determined whether or not the temperature read in step B8 is equal to or lower than the set lower limit temperature of the refrigerator compartment 4 (step B9). If "YES" is determined in step B9, the process proceeds to step A3. If "NO" is determined, the refrigerator compartment cooling time ΣTR during the integration operation is set to a predetermined divided operation time ΔT2. (For example, 10 minutes) is determined (step B10). If “NO” is determined here, the process returns to step B8. If “YES” is determined, step B11 of initializing the refrigerator compartment cooling time ΔTR,
Step B12 of stopping the rotation of the refrigerator compartment fan 11
Are sequentially executed, and the process proceeds to step B3.

【００５８】要するに本実施例の構成では、急速冷凍ス
イッチ２６がオン操作されたときにおいても、三方電磁
弁２０が冷蔵室冷却モード及び冷凍室冷却モードに交互
に切り替えられる制御が行われるが、この切り替え時に
は冷凍室冷却モードに切り替えた状態を通常時（冷蔵室
冷却モードが１０分に対して冷凍室冷却モードが１５
分）より長く保持する制御（冷蔵室冷却モードが１０分
に対して冷凍室冷却モードが３０分〜６０分）を行うに
よって冷凍室５側の冷却能力を向上させる制御が行われ
るものである。In short, in the configuration of the present embodiment, even when the quick refrigerating switch 26 is turned on, control is performed such that the three-way solenoid valve 20 is alternately switched between the refrigerator compartment cooling mode and the freezer compartment cooling mode. At the time of switching, the state of switching to the freezer compartment cooling mode is normally set (the freezer compartment cooling mode is set to 15 minutes for the refrigerator compartment cooling mode of 10 minutes.
The control for improving the cooling capacity of the freezer compartment 5 is performed by performing control for keeping the freezer compartment longer (for the refrigerator compartment cooling mode for 10 minutes and for the freezer compartment cooling mode for 30 to 60 minutes).

【００５９】上記のような構成とした本実施例において
も前記第１実施例と同様の効果を奏するものであり、特
に本実施例においては、冷凍室５内の選択的な急速冷凍
運転の実行時においても、三方電磁弁２０が冷蔵室冷却
モードに切り替えられる時間帯が必ず存在するから、冷
蔵室４内の温度が不用意に上昇する事態の発生を効果的
に防止できるという利点がある。The present embodiment having the above-described structure has the same effects as the first embodiment. In particular, in the present embodiment, the execution of the selective quick refrigeration operation in the freezing compartment 5 is performed. Even at the time, since there is always a time zone in which the three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode, there is an advantage that occurrence of a situation where the temperature in the refrigerator compartment 4 rises carelessly can be effectively prevented.

【００６０】（その他の実施の形態）急速冷凍スイッチ
２６に代えて、冷蔵室４内の急速冷却運転を行うための
急速冷却スイッチを設ける構成、或いは急速冷凍スイッ
チ２６と上記急速冷却スイッチを双方とも設ける構成と
することもできる。このような急速冷凍スイッチを設け
る場合には、制御回路２５は、当該急速冷却スイッチが
操作されたときに所定時間だけ冷却室４側の冷却能力を
向上させた状態を保持するという急速冷却制御を行うよ
うに構成される。このような構成によれば、急速冷却ス
イッチを操作することにより、冷蔵室４内の選択的な急
速冷却運転を確実に実行できるから、冷蔵室４内を急速
に冷却する場合に便利になる。(Other Embodiments) A structure in which a quick cooling switch for performing a quick cooling operation in the refrigerator compartment 4 is provided in place of the quick freezing switch 26, or both the quick freezing switch 26 and the above quick cooling switch are used. It is also possible to adopt a configuration provided. When such a quick refrigeration switch is provided, the control circuit 25 performs the quick refrigeration control of maintaining the state where the cooling capacity of the cooling chamber 4 is improved for a predetermined time when the quick refrigeration switch is operated. Configured to do. According to such a configuration, by operating the rapid cooling switch, the selective rapid cooling operation in the refrigerator compartment 4 can be reliably performed, which is convenient when the refrigerator compartment 4 is rapidly cooled.

【００６１】制御回路２５は、上記のような急速冷凍制
御の実行時において、電動機１７Ｍの回転数を上昇させ
て圧縮機１７の吐出能力を高める制御を同時に行う構成
とすることができる。また、制御回路２５は、急速冷却
制御の実行時において、三方電磁弁２０を予め決められ
た急速冷却時間だけ冷蔵室冷却モードに切り替えた状態
を保持することにより冷蔵室４側の冷却能力を向上させ
る制御を行う構成であっても良い。The control circuit 25 can be configured to simultaneously increase the rotation speed of the electric motor 17M and increase the discharge capacity of the compressor 17 at the time of performing the above-described rapid refrigeration control. Further, the control circuit 25 improves the cooling capacity of the refrigerator compartment 4 by maintaining the state in which the three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode for a predetermined rapid cooling time during the execution of the rapid cooling control. It may be configured to perform the control to make it.

【００６２】制御回路２５は、急速冷却制御の実行時に
おいて、三方電磁弁２０を冷蔵室冷却モード及び冷凍室
冷却モードに交互に切り替えると共に、その交互切り替
えの際に、冷蔵室冷却モードに切り替えた状態を通常時
より長く保持することによって冷蔵室側の冷却能力を向
上させる構成であっても良い。この場合、制御回路２５
は、上記のように三方電磁弁２０を冷蔵室冷却モードに
切り替えた状態において、冷凍室５内の温度が設定上限
温度以上となったときには、当該三方電磁弁２０を冷凍
室冷却モードに切り替えると共に、その後に所定時間が
経過したとき若しくは冷凍室５内の温度が所定温度以下
に下がったときに三方電磁弁２０を元の状態に復帰させ
る制御を行う構成であっても良い。また、制御回路２５
は、三方電磁弁２０を冷蔵室冷却モードに切り替えた状
態では冷蔵室用ファン１１を高速回転させる制御を行う
構成であっても良い。さらに、制御回路２５は、前記急
速冷却制御の実行時には圧縮機用冷却ファン１８を高速
回転させる構成であっても良い。The control circuit 25 alternately switches the three-way solenoid valve 20 between the refrigerator compartment cooling mode and the freezer compartment cooling mode during the execution of the rapid cooling control, and switches to the refrigerator compartment cooling mode during the alternate switching. The configuration may be such that the cooling capacity of the refrigerator compartment side is improved by maintaining the state longer than usual. In this case, the control circuit 25
In the state where the three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode as described above, when the temperature in the freezer compartment 5 becomes equal to or higher than the set upper limit temperature, the three-way solenoid valve 20 is switched to the freezer compartment cooling mode and Alternatively, control may be performed to return the three-way solenoid valve 20 to the original state when a predetermined time has elapsed thereafter or when the temperature in the freezer 5 has dropped below the predetermined temperature. Also, the control circuit 25
May be configured to perform control to rotate the refrigerator compartment fan 11 at high speed in a state where the three-way solenoid valve 20 is switched to the refrigerator compartment cooling mode. Further, the control circuit 25 may be configured to rotate the compressor cooling fan 18 at high speed during the execution of the rapid cooling control.

【００６３】[0063]

【発明の効果】本発明によれば以上の説明によって明ら
かなように、冷蔵室用冷却器及び冷凍室用冷却器、並び
にそれら各冷却器による冷気を冷蔵室内及び冷凍室内に
それぞれ送るための冷蔵室用ファン及び冷凍室用ファン
を個別に設けると共に、圧縮機から吐出された後に凝縮
器を経て液化された冷媒を少なくとも前記冷蔵室用冷却
器に供給する冷蔵室冷却モードと前記冷凍室用冷却器の
みに供給する冷凍室冷却モードとに切り替えられる弁装
置を設けた上で、圧縮機を動作させた状態では上記弁装
置を前記冷蔵室冷却モード及び冷凍室冷却モードに交互
に切り替える制御を行うと共に、使用者が操作可能な位
置に設置された急速冷凍スイッチが操作されたときに冷
凍室側の冷却能力を向上させた状態を所定時間だけ保持
する急速冷凍制御を行う制御手段を設ける構成、或い
は、圧縮機を動作させた状態では前記弁装置を前記冷蔵
室冷却モード及び冷凍室冷却モードに交互に切り替える
制御を行うと共に、使用者が操作可能な位置に設置され
た急速冷却スイッチが操作されたときに冷蔵室側の冷却
能力を向上させた状態を所定時間だけ保持する急速冷却
制御を行う制御手段を設けるなどの構成としたので、圧
縮機の小形化並びに平均消費電力の低減を実現できると
共に、冷凍室内の選択的な急速冷凍運転或いは冷蔵室内
の選択的な急速冷却運転を確実に実行できるなどの有益
な効果を奏するものである。According to the present invention, as is apparent from the above description, the refrigerator cooler and the freezer cooler, and the refrigeration for sending the cool air from each cooler into the refrigerator compartment and the freezer compartment, respectively. A refrigerator fan and a freezer compartment fan are separately provided, and a refrigeration compartment cooling mode for supplying a refrigerant liquefied through a condenser after being discharged from a compressor to at least the refrigerator compartment cooler, and the freezer compartment cooling mode. After providing a valve device that can be switched to a freezing room cooling mode for supplying only to the refrigerator, control is performed to alternately switch the valve device between the refrigerator room cooling mode and the freezing room cooling mode when the compressor is operated. A quick refrigeration control for maintaining a state in which the cooling capacity on the freezer compartment side is improved for a predetermined time when a quick refrigeration switch installed at a position operable by a user is operated. A configuration in which a control means is provided, or in a state where the compressor is operated, performs control to alternately switch the valve device between the refrigerator compartment cooling mode and the freezer compartment cooling mode, and is installed at a position operable by a user. When the rapid cooling switch is operated, a control means for performing a rapid cooling control for maintaining a state in which the cooling capacity of the refrigerating compartment is improved for a predetermined period of time is provided. The power consumption can be reduced, and the beneficial effects such as the selective quick freezing operation in the freezer compartment or the selective quick cooling operation in the refrigerator compartment can be surely executed.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の第１実施例における冷蔵庫本体及び冷
凍サイクルの概略的構成を実体的に示す図FIG. 1 is a diagram schematically illustrating a schematic configuration of a refrigerator body and a refrigeration cycle according to a first embodiment of the present invention.

【図２】電気的構成を示す機能ブロック図FIG. 2 is a functional block diagram showing an electrical configuration.

【図３】制御回路の制御内容を示すフローチャートFIG. 3 is a flowchart showing control contents of a control circuit.

【図４】本発明の第２実施例を示す図３相当図FIG. 4 is a view corresponding to FIG. 3, showing a second embodiment of the present invention;

【符号の説明】[Explanation of symbols]

１は冷蔵庫本体、２は冷凍サイクル、４は冷蔵室、５は
冷凍室、９は野菜室、１０は冷蔵室用冷却器、１１は冷
蔵室用ファン、１４は冷凍室用冷却器、１５は冷凍室用
ファン、１７は圧縮機、１７Ｍは電動機、１８は圧縮機
用冷却ファン、１９は凝縮器、２０は三方電磁弁（弁装
置）、２５は制御回路（制御手段）、２６は急速冷凍ス
イッチ、２７はインバータ回路（インバータ電源）を示
す。1 is a refrigerator body, 2 is a refrigeration cycle, 4 is a refrigerator room, 5 is a refrigerator room, 9 is a vegetable room, 10 is a refrigerator cooler, 11 is a refrigerator fan, 14 is a refrigerator cooler, and 15 is a refrigerator cooler. 17 is a compressor, 17M is an electric motor, 18 is a compressor cooling fan, 19 is a condenser, 20 is a three-way solenoid valve (valve device), 25 is a control circuit (control means), and 26 is quick freezing. A switch 27 indicates an inverter circuit (inverter power supply).

───────────────────────────────────────────────────── フロントページの続き (72)発明者 楠 敦 大阪府茨木市太田東芝町１番６号 株式会 社東芝大阪工場内 (72)発明者 岸本 卓也 大阪府茨木市太田東芝町１番６号 東芝エ ー・ブイ・イー株式会社大阪事業所内 Ｆターム(参考） 3L045 AA02 BA01 CA02 DA02 EA01 HA02 HA08 JA01 JA15 LA06 LA10 MA02 MA12 NA01 NA03 NA05 NA16 PA02 PA03 PA05 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Atsushi Kusunoki 1-6 Ota Toshiba-cho, Ibaraki-shi, Osaka Inside the Toshiba Osaka Plant Co., Ltd. (72) Takuya Kishimoto 1-6 Ota Toshiba-cho, Ibaraki-shi, Osaka Toshiba Abu E Co., Ltd. Osaka Office F term (reference) 3L045 AA02 BA01 CA02 DA02 EA01 HA02 HA08 JA01 JA15 LA06 LA10 MA02 MA12 NA01 NA03 NA05 NA16 PA02 PA03 PA05

Claims (15)

【特許請求の範囲】[Claims] 【請求項１】 冷媒を圧縮するための圧縮機と、 冷蔵室を冷却するための冷蔵室用冷却器と、 冷凍室を冷却するための冷凍室用冷却器と、 前記圧縮機から吐出された後に凝縮器を経て供給される
冷媒を少なくとも前記冷蔵室用冷却器に供給する冷蔵室
冷却モードと前記冷凍室用冷却器のみに供給する冷凍室
冷却モードとに切り替えられる弁装置と、 この弁装置が冷蔵室冷却モードにあるときに運転されて
前記冷蔵室用冷却器による冷気を前記冷蔵室内に送る冷
蔵室用ファンと、 前記弁装置が冷凍室冷却モードにあるときに運転されて
前記冷凍室用冷却器による冷気を前記冷凍室内に送る冷
凍室用ファンと、 前記圧縮機、弁装置、冷蔵室用ファン及び冷凍室用ファ
ンの動作を制御するように設けられ、圧縮機を動作させ
た状態では上記弁装置を前記冷蔵室冷却モード及び冷凍
室冷却モードに交互に切り替える制御を行う制御手段
と、 使用者が操作可能な位置に設置された急速冷凍スイッチ
とを備え、 前記制御手段は、前記急速冷凍スイッチが操作されたと
きに冷凍室側の冷却能力を向上させた状態を所定時間だ
け保持するという急速冷凍制御を行うように構成されて
いることを特徴とする冷凍冷蔵庫。1. A compressor for compressing a refrigerant, a refrigerator cooler for cooling a refrigerator, a refrigerator cooler for cooling a refrigerator, and a compressor discharged from the compressor. A valve device for switching between a refrigerator compartment cooling mode for supplying at least the refrigerator compartment cooler and a refrigerator compartment cooling mode for supplying only the refrigerator compartment cooler, and a refrigerant compartment supply mode for supplying only the freezer compartment cooler. Is operated when the refrigerator is in the refrigerator compartment cooling mode and sends the cool air from the refrigerator compartment cooler into the refrigerator compartment; and the freezer compartment is operated when the valve device is in the freezer compartment cooling mode. A cooling-room fan that sends cool air from the cooling unit into the freezing chamber; and a compressor, a valve device, a refrigerator-room fan, and a freezing-room fan that are provided to control the operation of the compressor, and a state in which the compressor is operated. Then the above valve device And a quick-refrigeration switch installed at a position operable by a user. A refrigerating refrigerator configured to perform a rapid refrigerating control of maintaining a state in which a cooling capacity of a freezer compartment is improved for a predetermined time when operated. 【請求項２】 圧縮機は、インバータ電源により駆動さ
れる電動機を内蔵した能力可変型に構成され、 制御手段は、急速冷凍制御の実行時には、前記電動機の
回転数を上昇させて前記圧縮機の能力を高める制御を同
時に行うことを特徴とする請求項１記載の冷凍冷蔵庫。2. The compressor is of a variable capacity type having a built-in electric motor driven by an inverter power supply, and the control means increases the number of revolutions of the electric motor during execution of the quick refrigeration control to increase the speed of the compressor. 2. The refrigerator according to claim 1, wherein the control for increasing the capacity is performed simultaneously. 【請求項３】 制御手段は、急速冷凍制御時には、弁装
置を予め決められた急速冷凍時間だけ冷凍室冷却モード
に切り替えた状態を保持することにより冷凍室側の冷却
能力を向上させることを特徴とする請求項１または２記
載の冷凍冷蔵庫。3. The control unit improves the cooling capacity of the freezing room by maintaining the state in which the valve device is switched to the freezing room cooling mode for a predetermined quick freezing time during the quick freezing control. The refrigerator-freezer according to claim 1 or 2, wherein 【請求項４】 制御手段は、急速冷凍制御時には、弁装
置を冷蔵室冷却モード及び冷凍室冷却モードに交互に切
り替える際に、冷凍室冷却モードに切り替えた状態を通
常時より長く保持することによって冷凍室側の冷却能力
を向上させることを特徴とする請求項１または２記載の
冷凍冷蔵庫。4. The control device according to claim 1, wherein, during the rapid refrigeration control, when the valve device is alternately switched to the refrigerator compartment cooling mode and the refrigerator compartment cooling mode, the state switched to the refrigerator compartment cooling mode is maintained longer than usual. 3. The refrigerator according to claim 1, wherein the cooling capacity of the freezer compartment is improved. 【請求項５】 請求項３または４記載の冷凍冷蔵庫にお
いて、 制御手段は、弁装置を冷凍室冷却モードに切り替えた状
態で冷蔵室内の温度が上限温度以上となったときには、
当該弁装置を冷蔵室冷却モードに切り替えると共に、そ
の後に所定時間が経過したとき若しくは冷蔵室内の温度
が所定温度以下に下がったときに弁装置を元の状態に復
帰させる制御を行うことを特徴とする冷凍冷蔵庫。5. The refrigerator-freezer according to claim 3, wherein the control means, when the temperature in the refrigerator compartment becomes equal to or higher than the upper limit temperature while the valve device is switched to the refrigerator compartment cooling mode.
Switching the valve device to the refrigerator compartment cooling mode, and performing control to return the valve device to the original state when a predetermined time has elapsed thereafter or when the temperature in the refrigerator compartment has dropped below the predetermined temperature. Freezer refrigerator. 【請求項６】 請求項５記載の冷蔵庫において、 冷凍室用ファンは可変速運転可能に構成され、 制御手段は、弁装置を冷蔵室冷却モードに切り替えた状
態では前記冷凍室用ファンを高速回転させる制御を行う
ことを特徴とする冷蔵庫。6. The refrigerator according to claim 5, wherein the freezing room fan is configured to be able to operate at a variable speed, and the control means rotates the freezing room fan at a high speed when the valve device is switched to the cooling room cooling mode. A refrigerator characterized by performing control for causing the refrigerator to perform the control. 【請求項７】 請求項５または６記載の冷蔵庫におい
て、 弁装置が冷蔵室冷却モードに切り替えられた状態では冷
蔵室冷却器及び冷凍室用冷却器にこの順に液冷媒が供給
されるように構成されると共に、冷蔵室用ファンは可変
速運転可能に構成され、 制御手段は、弁装置を冷蔵室冷却モードに切り替えた状
態では前記冷蔵室用ファンを低速回転させる制御を行う
ことを特徴とする冷蔵庫。7. The refrigerator according to claim 5, wherein the liquid refrigerant is supplied to the refrigerator compartment cooler and the refrigerator compartment cooler in this order when the valve device is switched to the refrigerator compartment cooling mode. In addition, the refrigerating compartment fan is configured to be able to operate at a variable speed, and the control means performs control for rotating the refrigerating compartment fan at low speed in a state where the valve device is switched to the refrigerating compartment cooling mode. refrigerator. 【請求項８】 圧縮機を冷却する可変速型の圧縮機用冷
却ファンを備え、 制御手段は、急速冷凍制御の実行時には前記圧縮機用冷
却ファンを高速回転させることを特徴とする請求項１な
いし７の何れかに記載の冷凍冷蔵庫。8. The compressor according to claim 1, further comprising a variable-speed compressor cooling fan for cooling the compressor, wherein the control means rotates the compressor cooling fan at a high speed when the rapid refrigeration control is executed. The refrigerator-freezer according to any one of claims 1 to 7. 【請求項９】 冷媒を圧縮するための圧縮機と、 冷蔵室を冷却するための冷蔵室用冷却器と、 冷凍室を冷却するための冷凍室用冷却器と、 前記圧縮機から吐出された後に凝縮器を経て供給される
冷媒を少なくとも前記冷蔵室用冷却器に供給する冷蔵室
冷却モードと前記冷凍室用冷却器のみに供給する冷凍室
冷却モードとに切り替えられる弁装置と、 この弁装置が冷蔵室冷却モードにあるときに運転されて
前記冷蔵室用冷却器による冷気を前記冷蔵室内に送る冷
蔵室用ファンと、 前記弁装置が冷凍室冷却モードにあるときに運転されて
前記冷凍室用冷却器による冷気を前記冷凍室内に送る冷
凍室用ファンと、 前記圧縮機、弁装置、冷蔵室用ファン及び冷凍室用ファ
ンの動作を制御するように設けられ、圧縮機を動作させ
た状態では上記弁装置を前記冷蔵室冷却モード及び冷凍
室冷却モードに交互に切り替える制御を行う制御手段
と、 使用者が操作可能な位置に設置された急速冷却スイッチ
とを備え、 前記制御手段は、前記急速冷却スイッチが操作されたと
きに所定時間だけ冷却室側の冷却能力を向上させた状態
を保持するという急速冷却制御を行うように構成されて
いることを特徴とする冷凍冷蔵庫。9. A compressor for compressing a refrigerant, a refrigerator cooler for cooling a refrigerator, a refrigerator cooler for cooling a refrigerator, and a refrigerant discharged from the compressor. A valve device for switching between a refrigerator compartment cooling mode for supplying at least the refrigerator compartment cooler and a refrigerator compartment cooling mode for supplying only the refrigerator compartment cooler, and a refrigerant compartment supply mode for supplying only the freezer compartment cooler. Is operated when the refrigerator is in the refrigerator compartment cooling mode and sends the cool air from the refrigerator compartment cooler into the refrigerator compartment; and the freezer compartment is operated when the valve device is in the freezer compartment cooling mode. A cooling-room fan that sends cool air from the cooling unit into the freezing chamber; and a compressor, a valve device, a refrigerator-room fan, and a freezing-room fan that are provided to control the operation of the compressor, and a state in which the compressor is operated. Then the above valve device Control means for alternately switching between the refrigerator compartment cooling mode and the freezer compartment cooling mode, and a quick cooling switch installed at a position operable by a user. A refrigerating refrigerator configured to perform rapid cooling control of maintaining a state in which the cooling capacity of a cooling chamber is improved for a predetermined time when operated. 【請求項１０】 圧縮機は、インバータ電源により駆動
される電動機を内蔵した能力可変型に構成され、 制御手段は、急速冷却制御の実行時には、前記電動機の
回転数を上昇させて前記圧縮機の能力を高める制御を同
時に行うことを特徴とする請求項９記載の冷凍冷蔵庫。10. The compressor is of a variable capacity type having a built-in electric motor driven by an inverter power supply, and the control means increases the number of revolutions of the electric motor to increase the rotation speed of the compressor when performing rapid cooling control. 10. The refrigerator according to claim 9, wherein the control for increasing the capacity is performed simultaneously. 【請求項１１】 制御手段は、急速冷却制御時には、弁
装置を予め決められた急速冷却時間だけ冷蔵室冷却モー
ドに切り替えた状態を保持することにより冷蔵室側の冷
却能力を向上させることを特徴とする請求項９または１
０記載の冷凍冷蔵庫。11. The cooling means improves the cooling capacity of the refrigerator compartment by maintaining the state in which the valve device is switched to the refrigerator compartment cooling mode for a predetermined rapid cooling time during the rapid cooling control. Claim 9 or 1
0 The refrigerator-freezer according to 0. 【請求項１２】 制御手段は、急速冷却制御時には、弁
装置を冷蔵室冷却モード及び冷凍室冷却モードに交互に
切り替える際に、冷蔵室冷却モードに切り替えた状態を
通常時より長く保持することによって冷蔵室側の冷却能
力を向上させることを特徴とする請求項９または１０記
載の冷凍冷蔵庫。12. The control means according to claim 1, wherein, during the rapid cooling control, when the valve device is alternately switched between the refrigerator compartment cooling mode and the freezer compartment cooling mode, the state switched to the refrigerator compartment cooling mode is maintained longer than usual. 11. The refrigerator according to claim 9, wherein the cooling capacity of the refrigerator compartment is improved. 【請求項１３】 請求項１１または１２記載の冷凍冷蔵
庫において、 制御手段は、弁装置を冷蔵室冷却モードに切り替えた状
態で冷凍室内の温度が上限温度以上となったときには、
当該弁装置を冷凍室冷却モードに切り替えると共に、そ
の後に所定時間が経過したとき若しくは冷凍室内の温度
が所定温度以下に下がったときに弁装置を元の状態に復
帰させる制御を行うことを特徴とする冷凍冷蔵庫。13. The refrigerator according to claim 11, wherein the control unit is configured to switch the valve device to the refrigerator compartment cooling mode when the temperature in the refrigerator compartment exceeds the upper limit temperature.
Switching the valve device to the freezer compartment cooling mode, and performing control to return the valve device to its original state when a predetermined time has elapsed thereafter or when the temperature in the freezer compartment has dropped below the predetermined temperature. Freezer refrigerator. 【請求項１４】 請求項１３記載の冷蔵庫において、 冷蔵室用ファンは可変速運転可能に構成され、 制御手段は、弁装置を冷蔵室冷却モードに切り替えた状
態では前記冷蔵室用ファンを高速回転させる制御を行う
ことを特徴とする冷蔵庫。14. The refrigerator according to claim 13, wherein the refrigerating compartment fan is configured to be able to operate at a variable speed, and the control means rotates the refrigerating compartment fan at a high speed when the valve device is switched to the refrigerating compartment cooling mode. A refrigerator characterized by performing control for causing the refrigerator to perform the control. 【請求項１５】 圧縮機を冷却する可変速型の圧縮機用
冷却ファンを備え、 制御手段は、急速冷却制御の実行時には前記圧縮機用冷
却ファンを高速回転させることを特徴とする請求項９な
いし１４の何れかに記載の冷凍冷蔵庫。15. The compressor according to claim 9, further comprising a variable-speed compressor cooling fan for cooling the compressor, wherein the control means rotates the compressor cooling fan at a high speed when the rapid cooling control is executed. 15. The refrigerator according to any one of claims 14 to 14.
JP28155998A 1998-10-02 1998-10-02 Freezer refrigerator Expired - Lifetime JP3530043B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28155998A JP3530043B2 (en) 1998-10-02 1998-10-02 Freezer refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28155998A JP3530043B2 (en) 1998-10-02 1998-10-02 Freezer refrigerator

Publications (2)

Publication Number Publication Date
JP2000111231A true JP2000111231A (en) 2000-04-18
JP3530043B2 JP3530043B2 (en) 2004-05-24

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020057092A (en) * 2000-12-30 2002-07-11 구자홍 Control Method for Refrigerator used 3WayStepMotor
KR100408239B1 (en) * 2001-09-08 2003-12-01 주식회사 엘지이아이 Apparatus for rapid freezing in side-by-side type refrigerator and controlling method thereof
JP2006090664A (en) * 2004-09-24 2006-04-06 Toshiba Corp Refrigerator
JP2006105407A (en) * 2004-09-30 2006-04-20 Toshiba Corp Refrigerator
WO2020007479A1 (en) * 2018-07-05 2020-01-09 Electrolux Appliances Aktiebolag Refrigerator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020057092A (en) * 2000-12-30 2002-07-11 구자홍 Control Method for Refrigerator used 3WayStepMotor
KR100408239B1 (en) * 2001-09-08 2003-12-01 주식회사 엘지이아이 Apparatus for rapid freezing in side-by-side type refrigerator and controlling method thereof
JP2006090664A (en) * 2004-09-24 2006-04-06 Toshiba Corp Refrigerator
JP4568062B2 (en) * 2004-09-24 2010-10-27 株式会社東芝 refrigerator
JP2006105407A (en) * 2004-09-30 2006-04-20 Toshiba Corp Refrigerator
WO2020007479A1 (en) * 2018-07-05 2020-01-09 Electrolux Appliances Aktiebolag Refrigerator

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