JPH10122719A - Refrigerator - Google Patents
RefrigeratorInfo
- Publication number
- JPH10122719A JPH10122719A JP27579396A JP27579396A JPH10122719A JP H10122719 A JPH10122719 A JP H10122719A JP 27579396 A JP27579396 A JP 27579396A JP 27579396 A JP27579396 A JP 27579396A JP H10122719 A JPH10122719 A JP H10122719A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerator
- refrigeration
- cooling
- compartment
- temperature
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
-
- 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
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は冷蔵庫に関し、特に
蒸発器と冷気風路を構成する壁面との一体成形による無
効容積の省スペース化、且つファン音の低騒音化に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly, to a space saving of an ineffective volume and a noise reduction of a fan sound by integrally forming an evaporator and a wall constituting a cold air passage.
【０００２】[0002]
【従来の技術】従来、冷蔵庫は特開平７−１５９０１４
号公報に記載されたものが知られている。以下、図１２
を参考に従来の冷蔵庫の構成について説明を行なう。2. Description of the Related Art Conventionally, refrigerators are disclosed in Japanese Unexamined Patent Publication No. 7-159014.
Japanese Unexamined Patent Publication (Kokai) No. H10-264, pp. 157-334 is known. Hereinafter, FIG.
The configuration of a conventional refrigerator will be described with reference to FIG.
【０００３】この冷蔵庫は冷凍室１と冷蔵室２に区切ら
れ、各室１、２には冷凍室温度検知手段３、冷蔵室温度
検知手段４が設置されている。This refrigerator is divided into a freezer compartment 1 and a refrigerator compartment 2, and each compartment 1, 2 is provided with a freezer compartment temperature detecting means 3 and a refrigerator compartment temperature detecting means 4.
【０００４】冷凍室１は手前に冷凍室扉５が取り付けら
れ、その開閉が冷凍室扉開閉検知手段６によって検知さ
れる。また奥部には蒸発器７、及び電動ファン８が設置
される。蒸発器７によって冷媒を蒸発させることで冷凍
室１内を冷却し、電動ファン８で冷気を循環させる。さ
らに蒸発器７の近傍には、付着する霜を除去する除霜ヒ
ーター９、除霜状態を検知する除霜温度検知手段１０が
取り付けられている。[0004] The freezer compartment 1 has a freezer compartment door 5 attached to the near side, and its opening and closing is detected by a freezing compartment door opening / closing detecting means 6. Further, an evaporator 7 and an electric fan 8 are installed at the back. The inside of the freezing room 1 is cooled by evaporating the refrigerant by the evaporator 7, and cool air is circulated by the electric fan 8. Further, near the evaporator 7, a defrost heater 9 for removing adhering frost and a defrost temperature detecting means 10 for detecting a defrost state are attached.
【０００５】冷蔵室２は手前に冷蔵室扉１１が取り付け
られ、その開閉が冷蔵室扉開閉検知手段１２によって検
知される。また、冷凍室１、及び冷蔵室２をつなぐ冷気
通路１３に電動ダンパ１４が設置され、この電動ダンパ
１４の開閉動作によって冷凍室１からの冷気が冷蔵室２
に循環される。また冷蔵室２の後背部には、冷凍サイク
ルを構成する圧縮機１５が設置されている。The refrigerating compartment 2 is provided with a refrigerating compartment door 11 at the front, and its opening and closing is detected by a refrigerating compartment door opening / closing detecting means 12. Further, an electric damper 14 is provided in a cold air passage 13 connecting the freezer compartment 1 and the refrigerator compartment 2, and the open / close operation of the electric damper 14 allows the cool air from the freezer compartment 1 to be cooled.
Circulated to A compressor 15 that constitutes a refrigeration cycle is installed at the rear of the refrigerator compartment 2.
【０００６】冷凍室１の温度制御は奥部上方に設置した
システム制御装置１６により行われる。The temperature control of the freezing room 1 is performed by a system control device 16 installed at the upper part in the back.
【０００７】次に上記従来の構成について説明する。圧
縮機１５の運転により、圧縮機１５より吐出された高温
高圧の冷媒は、図示しない凝縮器により凝縮液化し、さ
らに、図示しない減圧手段にて減圧され、蒸発器７で蒸
発気化し空気を冷却する。電動ファン８が運転すること
で冷凍室１、冷蔵室２へと熱搬送が行われる。蒸発器７
で気化した冷媒は、再び圧縮機１５に吸入される。Next, the above-mentioned conventional configuration will be described. By the operation of the compressor 15, the high-temperature and high-pressure refrigerant discharged from the compressor 15 is condensed and liquefied by a condenser (not shown), further decompressed by a decompression means (not shown), vaporized by an evaporator 7 and cooled. I do. When the electric fan 8 is operated, heat is transferred to the freezer compartment 1 and the refrigerator compartment 2. Evaporator 7
The refrigerant vaporized in is sucked into the compressor 15 again.
【０００８】この様な冷却を行なうことにより、冷凍室
１、冷蔵室２が冷却される。ここで、冷凍室１の温度変
化と、圧縮機１５及び電動ファン８による冷却動作との
関係について説明する。By performing such cooling, the freezing room 1 and the refrigerating room 2 are cooled. Here, the relationship between the temperature change of the freezing room 1 and the cooling operation by the compressor 15 and the electric fan 8 will be described.
【０００９】冷凍室１の温度はあらかじめ設定された所
定の温度範囲内で変動する。冷凍室１の温度が温度範囲
上限以上になると冷却不十分であるので、システム制御
装置１６は圧縮機１５及び電動ファン８をオンして冷却
動作を開始する。冷凍室１の温度が温度範囲下限以下に
なると過冷却であるので制御装置１６は圧縮機１５及び
電動ファン８をオフして冷却動作を停止する。The temperature of the freezing compartment 1 fluctuates within a predetermined temperature range set in advance. If the temperature of the freezer compartment 1 is equal to or higher than the upper limit of the temperature range, the cooling is insufficient, so the system controller 16 turns on the compressor 15 and the electric fan 8 to start the cooling operation. If the temperature of the freezing compartment 1 becomes lower than the lower limit of the temperature range, the cooling is stopped because the control device 16 turns off the compressor 15 and the electric fan 8 because supercooling is performed.
【００１０】これらの動作を繰り返すことにより、冷凍
室１の温度を所定温度範囲内に収めている。[0010] By repeating these operations, the temperature of the freezing compartment 1 is kept within a predetermined temperature range.
【００１１】冷蔵室２もあらかじめ設定された所定の温
度範囲内で変動する。冷蔵室２の温度が温度範囲上限以
上になると冷却不十分であるので、システム制御装置１
６は電動ダンパ１４及び電動ファン８をオンして冷却動
作を開始する。冷却通路１３を介して冷気が冷蔵室２に
流れ込み、冷蔵室２の温度が下がる。冷蔵室２の温度が
温度範囲下限以下になると過冷却であるのでシステム制
御装置１６は電動ダンパ１４及び電動ファン８をオフし
て冷却動作を停止する。The refrigerator 2 also fluctuates within a predetermined temperature range set in advance. When the temperature of the refrigerating compartment 2 becomes higher than the upper limit of the temperature range, the cooling is insufficient, so that
6 turns on the electric damper 14 and the electric fan 8 to start the cooling operation. Cold air flows into the refrigerator compartment 2 through the cooling passage 13, and the temperature of the refrigerator compartment 2 decreases. If the temperature of the refrigerator compartment 2 becomes lower than the lower limit of the temperature range, the system controller 16 turns off the electric damper 14 and the electric fan 8 to stop the cooling operation because the cooling is overcooling.
【００１２】これらの動作を繰り返すことにより、冷蔵
室２の温度を所定温度範囲内に収めている。By repeating these operations, the temperature of the refrigerator compartment 2 is kept within a predetermined temperature range.
【００１３】このように冷却運転を続けると、蒸発器７
を循環する空気に含まれる水分が、熱交換される際に霜
として、蒸発器７の表面に付着する。この着霜が進む
と、通風抵抗の増加による風速の低下や、霜層による蒸
発器７の空気側熱伝達率の減少により蒸発器７の熱交換
性能が低下し、充分な冷却運転が不可能となってくる。When the cooling operation is continued as described above, the evaporator 7
The moisture contained in the air circulating through the heat exchanger adheres to the surface of the evaporator 7 as frost when heat is exchanged. When the frost formation progresses, the heat exchange performance of the evaporator 7 decreases due to a decrease in the wind speed due to an increase in the ventilation resistance and a decrease in the heat transfer coefficient on the air side of the evaporator 7 due to the frost layer. It becomes.
【００１４】この状態を防止するため所定のタイミング
で除霜が行われる。除霜が開始されると、圧縮機１５が
停止し除霜ヒーター９に通電される。除霜ヒーター９の
通電により蒸発器７の表面の霜を発熱により融解する。
蒸発器７の表面の霜が融解すると、除霜温度検知手段１
０は除霜が完了したことを所定温度（一般的には１０か
ら２０℃）以上になることで検知し、除霜ヒーター９を
停止する。その後、上記の通常の冷却運転に復帰する。To prevent this state, defrosting is performed at a predetermined timing. When the defrost is started, the compressor 15 is stopped and the defrost heater 9 is energized. When the defrost heater 9 is energized, frost on the surface of the evaporator 7 is melted by heat generation.
When the frost on the surface of the evaporator 7 is melted, the defrost temperature detecting means 1
0 detects that the defrosting is completed when the temperature becomes equal to or higher than a predetermined temperature (generally 10 to 20 ° C.), and stops the defrosting heater 9. Thereafter, the operation returns to the normal cooling operation.
【００１５】[0015]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、冷蔵室２は冷凍室１に従属的に冷却され、
それ故に電動ファン８の運転によって冷気を冷蔵室２へ
間接的に循環させる必要がある。このような構成は冷気
循環風路の複雑化並びに電動ダンパ１４等の必需性によ
り無効容積の拡大につながるという問題を生じる。However, in the above-mentioned conventional configuration, the refrigerator compartment 2 is subordinately cooled by the freezer compartment 1,
Therefore, it is necessary to indirectly circulate cold air to the refrigerator compartment 2 by operating the electric fan 8. Such a configuration causes a problem that the cooling air circulation path becomes complicated and the necessity of the electric damper 14 or the like leads to an increase in the ineffective volume.
【００１６】同時に、上記従来の構成では、一個の電動
ファン８で冷凍室１と冷蔵室２の広域に冷気を対流させ
る必要が有り、高風量確保に伴う高回転・高静圧による
騒音が大きいという問題がある。At the same time, in the above-described conventional configuration, it is necessary to convect cool air over a wide area between the freezer compartment 1 and the refrigerator compartment 2 with one electric fan 8, and the noise due to high rotation and high static pressure accompanying high air flow is large. There is a problem.
【００１７】本発明はこれらのような従来の問題を解決
するものであり、冷気循環風路の構成を簡素化し冷蔵室
２の無効容積の省スペース化を図り、且つ通常冷却時は
原則的にファンを停止し、ファン音がない低騒音化を図
った冷蔵庫を提供することを目的とする。The present invention solves the conventional problems as described above, and simplifies the configuration of the cool air circulation air passage, saves the space of the ineffective volume of the refrigeration compartment 2, and basically cools the cooling room 2 during normal cooling. An object of the present invention is to provide a refrigerator in which a fan is stopped and noise is reduced without fan noise.
【００１８】[0018]
【課題を解決するための手段】上記の課題を解決するた
めに本発明は、少なくとも一つの冷凍室と少なくとも一
つの冷蔵室から成る冷蔵庫箱体と、圧縮機と凝縮器と冷
凍用減圧手段と冷凍用蒸発器と前記冷凍用減圧手段と前
記冷凍用蒸発器に対して並列に冷蔵用減圧手段と冷蔵用
蒸発器と前記冷蔵用減圧手段の入口部に切替弁と、それ
らを順次接合した冷却システムと、前記冷蔵用蒸発器の
近傍に冷蔵用冷気循環手段と前記冷凍用蒸発器の近傍に
冷凍用冷気循環手段と、前記冷蔵室の室温を検知する少
なくとも一つの冷蔵室温度検知手段と、前記冷凍室の室
温を検知する少なくとも一つの冷凍室温度検知手段と、
前記冷蔵室温度検知手段と前記冷凍室温度検知手段によ
る各室の冷却要求信号を受信し、且つ前記圧縮機と前記
冷蔵用冷気循環手段と前記冷凍用冷気循環手段と前記切
替弁を制御するシステム制御手段を設け、前記切替弁は
前記冷蔵室に対する前記システム制御手段からの冷却命
令信号に同期して開閉動作し、前記冷蔵用蒸発器は前記
冷蔵室内の循環空気の通路を構成する冷気循環風路の任
意の壁面を構成するものである。In order to solve the above-mentioned problems, the present invention provides a refrigerator box comprising at least one freezer compartment and at least one refrigerating compartment, a compressor, a condenser, and a decompression means for freezing. A refrigerating evaporator, the refrigerating depressurizing means, and a switching valve at the inlet of the refrigerating depressurizing means, the refrigerating evaporator, and the refrigerating depressurizing means in parallel with the refrigerating evaporator, and a cooling system in which these are sequentially joined A system, refrigeration cool air circulation means in the vicinity of the refrigeration evaporator and refrigeration cool air circulation means in the vicinity of the refrigeration evaporator, at least one refrigeration room temperature detection means for detecting the room temperature of the refrigeration room, At least one freezer compartment temperature detecting means for detecting the room temperature of the freezer compartment,
A system that receives a request signal for cooling each room by the refrigerator temperature detecting means and the freezing room temperature detecting means, and controls the compressor, the cold air circulating means for cooling, the cold air circulating means for freezing, and the switching valve. Control means, wherein the switching valve opens and closes in synchronism with a cooling command signal from the system control means for the refrigerator compartment, and the evaporator for cooling comprises a cool air circulating air forming a passage of circulating air in the refrigerator compartment. It constitutes an arbitrary wall of the road.
【００１９】この発明によれば、前記各室個別に前記冷
凍用蒸発器と前記冷蔵用蒸発器を設け且つ、前記冷蔵用
蒸発器と前記冷気循環風路を構成する任意の壁面とを一
体成形することにより、電動ダンパの除去、前記冷蔵用
蒸発器の配置スペースの縮小が可能となり、且つ前記冷
気循環風路の構成を簡素化することができる。According to the present invention, the refrigerating evaporator and the refrigerating evaporator are separately provided in each of the chambers, and the refrigerating evaporator and an arbitrary wall surface forming the cool air circulation air passage are integrally formed. By doing so, it is possible to remove the electric damper, reduce the space for disposing the refrigeration evaporator, and simplify the configuration of the cool air circulation air passage.
【００２０】さらに、冷蔵室扉の開閉動作を検知する冷
蔵室扉開閉検知手段を設け、前記システム制御手段は前
記冷蔵室扉開閉検知手段の検知信号を受信し、通常冷却
時は原則として前記冷蔵用蒸発器の熱交換により自然対
流で前記冷蔵室庫内を所定の第一の冷蔵室温度まで冷却
し、前記冷蔵室扉開閉検知手段が前記冷蔵室扉の開動作
後の閉動作を検知したときは前記冷蔵用冷気循環手段を
運転し前記冷蔵室庫内を強制対流で冷却することで、通
常は前記冷蔵用冷気循環手段のファン音がない低騒音化
を図り、且つ前記冷蔵室扉の開閉動作により負荷が増大
したときは強制対流による冷却で冷却速度の向上を図る
ことができる。また、前記各室個別に前記冷凍用冷気循
環手段と前記冷蔵用冷気循環手段を設けることで、前記
各冷気循環手段による冷気対流範囲は狭く、必要風量確
保のための回転数を低くすることができ、騒音を抑制す
ることができる。Further, there is provided a refrigerating compartment door opening / closing detecting means for detecting the opening / closing operation of the refrigerating compartment door, and the system control means receives a detection signal of the refrigerating compartment door opening / closing detecting means. The inside of the refrigerator compartment is cooled to a predetermined first refrigerator compartment temperature by natural convection by heat exchange of the evaporator for use, and the refrigerator compartment door opening / closing detecting means detects the closing operation after the opening operation of the refrigerator compartment door. Sometimes, by operating the refrigeration cool air circulation means and cooling the inside of the refrigerator compartment by forced convection, the noise of the refrigeration cool air circulation means is normally reduced without fan noise, and the refrigeration compartment door is closed. When the load increases due to the opening and closing operation, the cooling rate can be improved by cooling by forced convection. Further, by providing the cooling air circulation means for freezing and the cooling air circulation means for refrigerating separately in each of the chambers, the cool air convection range by each of the cooling air circulation means is narrow, and the number of rotations for securing the required air volume can be reduced. And noise can be suppressed.
【００２１】[0021]
【発明の実施の形態】本発明の請求項１に記載の発明
は、少なくとも一つの冷凍室と少なくとも一つの冷蔵室
から成る冷蔵室箱体と、圧縮機と凝縮器と冷凍用減圧手
段と冷凍用蒸発器と前記冷凍用減圧手段と前記冷凍用蒸
発器に対して並列に冷蔵用減圧手段と冷蔵用蒸発器と前
記冷蔵用減圧手段の入口部に切替弁と、それらを順次接
合した冷却システムと、前記冷蔵用蒸発器の近傍に冷蔵
用冷気循環手段と前記冷凍用蒸発器の近傍に冷凍用冷気
循環手段と、前記冷蔵室の室温を検知する少なくとも一
つの冷蔵室温度検知手段と、前記冷凍室の室温を検知す
る少なくとも一つの冷凍室温度検知手段と、前記冷蔵室
温度検知手段と前記冷凍室温度検知手段による各室の冷
却要求信号を受信し、且つ前記圧縮機と前記冷蔵用冷気
循環手段と前記冷凍用冷気循環手段と前記切替弁を制御
するシステム制御手段を設け、前記切替弁は前記冷蔵室
に対する前記システム制御手段からの冷却命令信号に同
期して開閉動作し、前記冷蔵室用蒸発器は前記冷蔵室内
の循環空気の通路を構成する冷気循環風路の任意の壁面
を構成することを特徴とするものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a refrigerating compartment box comprising at least one freezing compartment and at least one refrigerating compartment, a compressor, a condenser, a decompression means for refrigerating, and a refrigerating machine. Evaporator, refrigeration decompression means, and a refrigeration decompression means in parallel to the refrigeration evaporator, a switching valve at the inlet of the refrigeration evaporator and the refrigeration decompression means, and a cooling system in which they are sequentially joined. And, refrigeration cool air circulation means in the vicinity of the refrigeration evaporator and refrigeration cool air circulation means in the vicinity of the refrigeration evaporator, at least one refrigerating room temperature detecting means for detecting the room temperature of the refrigerating room, At least one freezing room temperature detecting means for detecting the room temperature of the freezing room, receiving a request signal for cooling each room by the refrigerator room temperature detecting means and the freezing room temperature detecting means, and the compressor and the refrigerated cold air; Circulation means and the refrigeration Cooling air circulation means and a system control means for controlling the switching valve are provided, the switching valve is opened and closed in synchronization with a cooling command signal from the system control means for the refrigerator compartment, and the refrigerator evaporator is provided for the refrigerator compartment. The present invention is characterized in that an arbitrary wall surface of a cool air circulating air path that forms a passage of indoor circulating air is formed.
【００２２】前記各室個別に前記冷凍用蒸発器と前記冷
蔵用蒸発器を設け且つ、前記冷蔵用蒸発器と前記冷気循
環風路を構成する任意の壁面とを一体成形することによ
り、電動ダンパの除去、前記冷蔵用蒸発器の配置スペー
スの縮小、且つ前記冷気循環風路の構成を簡素化するこ
とができ、無効容積の省スペース化を図ることができる
という作用を有する。The electric damper is provided by separately providing the refrigerating evaporator and the refrigerating evaporator in each of the chambers and integrally forming the refrigerating evaporator and an arbitrary wall surface constituting the cool air circulation air passage. , The space for disposing the refrigeration evaporator can be reduced, and the configuration of the cool air circulating air passage can be simplified, and the space of the ineffective volume can be reduced.
【００２３】本発明の請求項２に記載の発明は、冷蔵室
扉の開閉動作を検知する冷蔵室扉開閉検知手段を設け、
前記システム制御手段は前記冷蔵室扉開閉検知手段の検
知信号を受信し、原則として通常冷却は前記冷蔵用蒸発
器の熱交換により自然対流で前記冷蔵室庫内を所定の第
一の冷蔵室温度範囲の下限値まで冷却し、前記冷蔵室扉
開閉検知手段が前記冷蔵室扉の開動作後の閉動作を検知
したときは前記冷蔵用冷気循環手段を運転し前記冷蔵室
庫内を強制対流で冷却することを特徴とする請求項１記
載の冷蔵庫。According to a second aspect of the present invention, there is provided a refrigerator door opening / closing detecting means for detecting the opening / closing operation of the refrigerator door.
The system control means receives a detection signal of the refrigerator compartment door open / close detection means, and in principle, normal cooling is performed by natural convection through heat exchange of the refrigerator evaporator and a predetermined first refrigerator compartment temperature in the refrigerator compartment. When cooled to the lower limit of the range, when the refrigerator compartment door opening / closing detection means detects the closing operation after the opening operation of the refrigerator compartment door, the refrigerator cooling air circulation means is operated and forced convection flows inside the refrigerator compartment storage. The refrigerator according to claim 1, wherein the refrigerator is cooled.
【００２４】通常冷却時は自然対流による冷却のため前
記冷蔵用冷気循環手段のファン音がなく低騒音化が図ら
れるという作用を有する。また、前記各室個別に前記冷
凍用冷気循環手段と前記冷蔵用冷気循環手段を設けるこ
とで、前記各冷気循環手段が冷気を対流させる範囲は狭
く、必要風量確保のための回転数を低くすることがで
き、騒音を抑制することができる。At the time of normal cooling, since the cooling is performed by natural convection, there is no fan noise of the cooling air circulation means for refrigeration, so that the noise can be reduced. Further, by providing the cooling air circulation means for freezing and the cooling air circulation means for refrigerating individually in each of the chambers, the range in which the cooling air circulation means convects the cool air is narrow, and the number of revolutions for securing the required air volume is reduced. And noise can be suppressed.
【００２５】加えて、前記冷蔵用冷気循環手段の入力と
モータへ発熱量の削減により低消費電力化を図ることが
できる。さらに、通常冷却時は自然対流で冷却するため
循環空気が貯蔵食品に対して直接的に当たることがなく
貯蔵食品の乾燥抑制の効果を有し、食品鮮度を従来以上
に延長できる。そして、前記冷蔵室扉の開閉動作により
庫内の負荷が増大したときは、前記冷蔵用冷気循環手段
の運転により冷凍能力の向上と強制対流による冷却速度
の促進を図り、前記冷蔵室庫内を速やかに冷却すること
ができるという作用を有する。In addition, low power consumption can be achieved by reducing the amount of heat input to the motor and the input of the cooling air circulation means for refrigeration. Further, during normal cooling, cooling is performed by natural convection, so that circulating air does not directly hit the stored food, which has the effect of suppressing the drying of the stored food, and the freshness of the food can be extended more than before. When the load in the refrigerator increases due to the opening / closing operation of the refrigerator compartment door, the operation of the cold air circulation means for refrigeration improves the refrigerating capacity and promotes the cooling speed by forced convection, and the inside of the refrigerator compartment is improved. It has the effect that it can be cooled quickly.
【００２６】本発明の請求項３に記載の発明は、冷蔵庫
周囲の外気温度を検知する外気温度検知手段を設け、所
定の外気温度以上を前記外気温度検知手段が検知してい
るとき、前記冷蔵用冷気循環手段を運転させることを特
徴とするものである。According to a third aspect of the present invention, there is provided an outside air temperature detecting means for detecting an outside air temperature around the refrigerator, and when the outside air temperature detecting means detects a predetermined outside air temperature or more, the refrigeration is performed. The cooling air circulation means is operated.
【００２７】夏季など冷蔵庫周囲の外気温度が比較的高
くなりキャビネットの吸熱負荷量が増大したとき、前記
冷蔵用冷気循環手段の運転により冷凍能力の向上を図
り、強制対流による冷却速度の促進を図り、前記冷蔵室
庫内を速やかに冷却するという作用を有する。When the outside air temperature around the refrigerator becomes relatively high in summer and the heat absorption load of the cabinet increases, the refrigerating capacity is improved by operating the cooling air circulation means for refrigeration, and the cooling rate is increased by forced convection. This has the effect of rapidly cooling the inside of the refrigerator compartment.
【００２８】本発明の請求項４に記載の発明は、少なく
とも１つの前記冷蔵室温度検知手段が前記第一の冷蔵室
温度範囲の上限値より高く設定した第二の冷蔵室温度範
囲の上限値以上を検知しているとき前記冷蔵用冷気循環
手段を運転させることを特徴とするものである。According to a fourth aspect of the present invention, there is provided a method according to the fourth aspect of the present invention, wherein at least one of the refrigerator temperature detecting means is set higher than an upper limit of the first refrigerator temperature range. When the above is detected, the cooling air circulation means for refrigeration is operated.
【００２９】高温、多量など負荷大の食品等が収納され
たとき並びに冷蔵庫電源プラグ投入時など前記冷蔵室の
庫内温度の上昇幅が大きく、所定の前記第一の冷蔵室温
度範囲の上限値よりも高く設定されている前記第二の冷
蔵室温度の上限値以上になったときは前記冷蔵用冷気循
環手段の運転により冷凍能力の向上と強制対流による冷
却速度の促進を図り、前記冷蔵室庫内を速やかに冷却す
るという作用を有する。The temperature in the refrigerator compartment has a large increase in temperature when the food or the like having a large load such as high temperature and a large load is stored and when the power plug of the refrigerator is turned on, and the upper limit value of the predetermined temperature range of the first refrigerator compartment is large. When the temperature of the second refrigerating compartment is higher than the upper limit of the second refrigerating compartment, the operation of the refrigerating cool air circulation means improves the refrigerating capacity and promotes the cooling speed by forced convection. It has the effect of quickly cooling the inside of the refrigerator.
【００３０】本発明の請求項５に記載の発明は、システ
ム制御手段に内蔵タイマーを設け、冷蔵室の冷却時に前
記冷蔵用冷気循環手段を前記内蔵タイマーの時間制御に
より所定の間隔で前記冷蔵用冷気循環手段を運転させる
ことを特徴とするものである。According to a fifth aspect of the present invention, a built-in timer is provided in the system control means, and when the refrigerator is cooled, the cooling air circulation means is controlled at predetermined intervals by time control of the built-in timer. It is characterized by operating the cool air circulation means.
【００３１】自然対流により前記冷蔵室を冷却している
とき、庫内の温度分布のばらつきが大きくなり、食品の
鮮度は庫内貯蔵場所によって影響されることになる。し
かし、前記冷蔵用冷気循環手段を所定の間隔で定期的に
運転することにより前記冷蔵室の空気を循環させ、庫内
温度のばらつき幅を小さく回復することができ庫内貯蔵
場所の違いによる食品鮮度のムラを小さくできるという
作用を有する。When the refrigerator is cooled by natural convection, the temperature distribution in the refrigerator varies greatly, and the freshness of the food is affected by the storage location in the refrigerator. However, by periodically operating the refrigeration cool air circulation means at predetermined intervals, the air in the refrigeration room can be circulated, and the variation width of the temperature in the refrigerator can be reduced to a small value. This has the effect of reducing unevenness in freshness.
【００３２】本発明の請求項６に記載の発明は、冷蔵室
の冷却に同期して、冷蔵用冷気循環手段の回転数を減少
させ、前記冷蔵室に微風を行き渡らせることを特徴とす
るものである。[0032] The invention according to claim 6 of the present invention is characterized in that, in synchronization with the cooling of the refrigerator compartment, the number of revolutions of the cold air circulation means for cooling is reduced so that the breeze spreads through the refrigerator compartment. It is.
【００３３】自然対流により前記冷蔵室を冷却している
とき、庫内の温度分布のばらつきが大きくなり、食品の
鮮度は庫内貯蔵場所によって影響されることになるが、
前記冷蔵用冷気循環手段を比較的低い回転数で運転する
ことにより前記冷蔵室の空気が緩やかに循環し、庫内温
度のばらつき幅を小さく維持することができ、庫内の食
品鮮度を均一に保持できるという作用を有する。前記冷
蔵用冷気循環手段は比較的低い回転数で運転されている
ため、循環する空気は微風で貯蔵食品に対する乾燥の影
響も少ない。When the refrigerator is cooled by natural convection, the temperature distribution in the refrigerator varies greatly, and the freshness of the food is affected by the storage location in the refrigerator.
By operating the refrigeration cool air circulation means at a relatively low rotation speed, the air in the refrigeration room circulates slowly, and the variation width of the temperature in the refrigerator can be kept small, and the freshness of the food in the refrigerator is made uniform. Has the effect of being able to hold. Since the cold air circulation means for refrigeration is operated at a relatively low rotation speed, the circulating air is a breeze and has little influence on drying the stored food.
【００３４】本発明の請求項７に記載の発明は、冷蔵室
に複数個の冷蔵室温度検知手段を設け、前記冷蔵室庫内
の温度分布幅が所定範囲以上のばらつきを検知している
とき、前記冷蔵用冷気循環手段を運転させることを特徴
とするものである。According to a seventh aspect of the present invention, when a plurality of refrigerator compartment temperature detecting means are provided in the refrigerator compartment, and when the temperature distribution width in the refrigerator compartment is detected to have a variation of a predetermined range or more. And operating the cold air circulation means for refrigeration.
【００３５】自然対流により前記冷蔵室を冷却している
とき、庫内の温度分布のばらつきが大きくなり、食品の
鮮度は庫内貯蔵場所によって影響されることになるが、
温度分布のばらつきが所定の許容範囲内に回復するまで
庫内空気を循環させることにより、常時、より快適にば
らつき幅を許容範囲内に維持することができ、庫内全域
の食品鮮度を常に均一に保持できるという作用を有す
る。庫内温度のばらつきが大きいことを確認したときの
み前記冷蔵用冷気循環手段を運転させるので、貯蔵食品
に対する乾燥の影響もより少なくできる。When the refrigerator is cooled by natural convection, the temperature distribution in the refrigerator greatly varies, and the freshness of the food is affected by the storage location in the refrigerator.
By circulating the air inside the refrigerator until the variation of the temperature distribution recovers within the predetermined tolerance, the variation width can always be maintained more comfortably within the tolerance, and the freshness of food throughout the refrigerator is always uniform. It has the effect that it can be held. Since the cooling air circulation means for refrigeration is operated only when it is confirmed that the temperature in the refrigerator is large, the influence of drying on the stored food can be further reduced.
【００３６】[0036]
【実施例】以下、本発明の実施例について、図１から図
１１を用いて説明する。但し、従来と同一構成について
は、同一の符号を付し、詳細な説明を省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. However, the same components as those of the related art are denoted by the same reference numerals, and detailed description thereof will be omitted.
【００３７】（実施例１）図１は本発明の第１の実施例
を示す冷蔵庫の断面概略図、図２は本発明の第１の実施
例を示す冷蔵庫の冷却システム概略図である。(Embodiment 1) FIG. 1 is a schematic sectional view of a refrigerator showing a first embodiment of the present invention, and FIG. 2 is a schematic diagram of a cooling system of the refrigerator showing a first embodiment of the present invention.
【００３８】圧縮機１５と、凝縮器１７と、冷凍用減圧
手段１８と、冷凍用蒸発器１９と、冷凍用減圧手段１８
と冷凍用蒸発器１９に対して並列に冷蔵用減圧手段２０
と、冷蔵用蒸発器２１と、冷蔵用減圧手段２０の入口部
に切替弁２２とを順次接合してなる冷却システム２３を
設け、断熱された少なくとも一つの冷凍室１と少なくと
も一つの冷蔵室２を有している。The compressor 15, the condenser 17, the freezing pressure reducing means 18, the freezing evaporator 19, and the freezing pressure reducing means 18
Refrigeration decompression means 20 in parallel with
A refrigeration evaporator 21 and a cooling system 23 in which a switching valve 22 is sequentially joined to an inlet of the refrigeration decompression means 20, wherein at least one insulated freezer compartment 1 and at least one refrigeration compartment 2 are provided. have.
【００３９】冷蔵用蒸発器２１はプレート型熱交換器で
あり、冷蔵用蒸発器２１のプレートを構成する部分が冷
蔵室２において空気が循環する風路である冷気循環風路
２４を構成する任意の壁面と一体成形になっている。こ
れにより冷蔵用蒸発器２１は熱交換器として、且つ冷蔵
用冷気循環風路２５の構成要素である壁面としての機能
を備えている。なお、冷気循環風路２４を構成する任意
の壁面とは、冷蔵用蒸発器２１が熱交換としての機能を
十分に活かすことができる場所をいう。The refrigeration evaporator 21 is a plate-type heat exchanger, and a portion constituting the plate of the refrigeration evaporator 21 constitutes a cool air circulation air passage 24 which is an air passage through which air circulates in the refrigeration chamber 2. It is formed integrally with the wall surface of. Thereby, the refrigerating evaporator 21 has a function as a heat exchanger and a wall functioning as a component of the refrigerating cool air circulation air passage 25. The arbitrary wall surface constituting the cool air circulation passage 24 refers to a place where the refrigerating evaporator 21 can fully utilize the function as heat exchange.
【００４０】冷蔵用冷気循環手段２５は冷蔵室２の空気
を冷蔵用蒸発器２１のプレート部に設けられた複数個の
冷気吸入孔２６から吸い込んで冷気循環風路２４を通過
させ、再び冷蔵室２へ空気を吐出するものである。空気
が冷気吸入孔２６を通過するとき空気は冷蔵用蒸発器２
１で熱交換を行い、より低温の空気として冷蔵室２へ吐
出される。なお、冷蔵用冷気循環手段２５は回転数の可
変機能を備えている。The refrigeration cool air circulating means 25 sucks air from the refrigeration chamber 2 through a plurality of cool air suction holes 26 provided in a plate portion of the refrigeration evaporator 21, passes through the cool air circulation air passage 24, and returns to the refrigeration chamber again. 2 to discharge air. When the air passes through the cold air inlet 26, the air is cooled by the refrigeration evaporator 2.
The heat exchange is performed at 1 and the air is discharged to the refrigerator compartment 2 as lower-temperature air. In addition, the cold air circulation means 25 for refrigeration has a variable speed function.
【００４１】冷凍用冷気循環手段２７は冷凍室１から吸
い込んだ空気を冷凍用蒸発器１９に導き空気は熱交換を
行い、再び冷凍室１へより低温の空気として吐出するも
のである。The refrigerating cool air circulating means 27 guides the air sucked from the freezing room 1 to the freezing evaporator 19 to exchange heat and discharge the air to the freezing room 1 again as lower-temperature air.
【００４２】冷蔵室２内に室温を検知する例えばサーミ
スタである少なくとも一つの冷蔵室温度検知手段４と、
冷凍室１内に室温を検知する例えばサーミスタである少
なくとも１つの冷凍室温度検知手段３とを備え、冷蔵室
温度検知手段４と冷凍室温度検知手段３が各室の所定温
度以上を検知したとき、各室の冷却要求信号をシステム
制御手段１６が受信する。At least one refrigerating room temperature detecting means 4 for detecting a room temperature in the refrigerating room 2, for example, a thermistor;
When at least one freezing room temperature detecting means 3 which is, for example, a thermistor for detecting room temperature in the freezing room 1 is provided, and the refrigerator room temperature detecting means 4 and the freezing room temperature detecting means 3 detect a predetermined temperature or more of each room. Then, the system control means 16 receives a cooling request signal for each room.
【００４３】システム制御手段１６は冷蔵室温度検知手
段４と冷凍室温度検知手段３からの各室の冷却要求信号
を受け、圧縮機１５と冷蔵用冷気循環手段２５と冷凍用
冷気循環手段２７と切替弁２２との動作制御を行い、各
室の冷却の制御を行うものである。The system control means 16 receives the cooling request signals of the respective compartments from the refrigerating compartment temperature detecting means 4 and the freezing compartment temperature detecting means 3 and receives the compressor 15, the refrigerating cold air circulating means 25, the refrigerating cold air circulating means 27 and The operation of the switching valve 22 is controlled to control the cooling of each chamber.
【００４４】システム制御手段１６が冷蔵室２の冷却要
求信号を受信したとき切替弁２２は、開動作を行う。シ
ステム制御手段１６が冷凍室１の冷却要求信号を受信し
たとき、並びに圧縮機１５が停止中のとき切替弁２２は
閉動作を行う。When the system control means 16 receives the cooling request signal for the refrigerator compartment 2, the switching valve 22 performs an opening operation. The switching valve 22 performs a closing operation when the system control unit 16 receives the cooling request signal for the freezer compartment 1 and when the compressor 15 is stopped.
【００４５】以上のように構成された本発明の冷蔵庫の
第１の実施例の動作について説明を行う。The operation of the first embodiment of the refrigerator of the present invention configured as described above will be described.
【００４６】冷凍室１を冷却するとき、冷凍用冷気循環
手段２７を作動させ、冷凍用蒸発器１９で熱交換した空
気を冷凍室１に循環し冷却する。When cooling the freezing compartment 1, the cooling air circulation means 27 for freezing is operated, and the air exchanged by the freezing evaporator 19 is circulated to the freezing compartment 1 for cooling.
【００４７】次に冷蔵室２を冷却するとき、冷凍室１を
一定期間冷却した後、次に冷凍用冷気循環手段２７を停
止する。同時に、冷蔵用減圧手段２０の入口部に設けた
切替弁２２を開放状態にする。Next, when cooling the refrigerating compartment 2, the freezing compartment 1 is cooled for a certain period of time, and then the refrigerating cool air circulation means 27 is stopped. At the same time, the switching valve 22 provided at the inlet of the refrigeration decompression means 20 is opened.
【００４８】一般的に冷蔵用減圧手段２０の方が冷凍用
減圧手段１８より減圧量は小さく設定されており、切替
弁２２を開くことで大部分の冷媒は冷蔵用蒸発器２１の
方に流れ、冷蔵用蒸発器２１で熱交換が行われる。In general, the amount of depressurization of the refrigeration depressurizing means 20 is set smaller than that of the refrigeration depressurizing means 18, and most of the refrigerant flows toward the refrigeration evaporator 21 by opening the switching valve 22. Then, heat exchange is performed in the refrigeration evaporator 21.
【００４９】そして冷凍室１の冷却時と同様に、所定期
間冷蔵室２を冷却した後、切替弁２２を閉塞状態にして
冷蔵室２の冷却を停止する。After cooling the refrigerator compartment 2 for a predetermined period, the switching valve 22 is closed to stop the cooling of the refrigerator compartment 2 as in the case of cooling the freezer compartment 1.
【００５０】このように冷凍室１と冷蔵室２の冷却を交
互に繰り返すサイクルを形成して冷凍室１と冷蔵室２を
冷却する。As described above, a cycle in which the cooling of the freezer compartment 1 and the cooling of the refrigerator compartment 2 are repeated alternately is formed to cool the freezer compartment 1 and the refrigerator compartment 2.
【００５１】冷凍室１と冷蔵室２の冷却を終えると圧縮
機１５が停止する。以上の構成により、冷蔵室２用の熱
交換器と冷気循環風路２４を構成する任意の壁面とを一
体成形した冷蔵用蒸発器２１を設けることができ、冷蔵
室２に冷蔵室２独自の熱交換器を設けることによって生
じる配置スペース化の懸念はなく、並びに電動ダンパ１
４の除去により無効容積の省スペースが可能となり、且
つ冷気循環風路２４の構成を簡素化することができる。When the cooling of the freezer compartment 1 and the refrigerator compartment 2 is completed, the compressor 15 stops. With the above configuration, it is possible to provide the refrigeration evaporator 21 in which the heat exchanger for the refrigeration room 2 and an arbitrary wall forming the cold air circulation air passage 24 are integrally formed. There is no concern about the arrangement space caused by providing the heat exchanger, and the electric damper 1
The removal of 4 makes it possible to save the space of the ineffective volume and simplify the configuration of the cool air circulation air passage 24.
【００５２】なお、以上の説明では冷蔵用蒸発器２１は
冷蔵室２用の熱交換器と冷気循環風路２４を構成する任
意の壁面とを兼用しており、冷蔵用蒸発器２１のプレー
トの片面は食品収納側（プレートを中心に冷気循環風路
２４とは反対方向）に対してむきだしの構成であるが、
プレート面に断熱材などを被覆しても問題はない。In the above description, the refrigerating evaporator 21 serves both as a heat exchanger for the refrigerating compartment 2 and an arbitrary wall surface constituting the cold air circulation air passage 24. One side is exposed to the food storage side (the direction opposite to the cold air circulation path 24 around the plate),
There is no problem even if the plate surface is covered with a heat insulating material or the like.
【００５３】また、冷蔵用蒸発器２１はプレート型とし
たが、冷気循環風路２４の任意の壁面と一体成形上、ロ
ールボンド型のものであってもかまわないし、１パスで
あっても多パスであっても同様の効果が得られる。Although the refrigeration evaporator 21 is of a plate type, it may be of a roll-bond type or a single-pass type, as it is integrally formed with an arbitrary wall surface of the cool air circulating air passage 24. The same effect can be obtained with a pass.
【００５４】さらに、冷蔵用冷気循環手段２５はプロペ
ラ型であってもシロッコ型或いはクロスフロー型であっ
ても問題はない。Further, there is no problem if the cooling air circulation means 25 for refrigeration is a propeller type, a sirocco type or a cross flow type.
【００５５】（実施例２）図３は本発明の第２の実施例
を示す冷蔵庫の断面概略図、図４は本発明の第２の実施
例を示すタイムチャートである。(Embodiment 2) FIG. 3 is a schematic sectional view of a refrigerator showing a second embodiment of the present invention, and FIG. 4 is a time chart showing the second embodiment of the present invention.
【００５６】冷蔵室２内に冷蔵室扉１１の開閉動作を検
知する冷蔵室扉開閉検知手段１２を備えている。The refrigerating compartment 2 is provided with a refrigerating compartment door opening / closing detecting means 12 for detecting the opening / closing operation of the refrigerating compartment door 11.
【００５７】システム制御手段１６は冷蔵室扉開閉検知
手段１２からの検知信号を受信し、且つ冷蔵用冷気循環
手段２５の動作を行うものである。The system control means 16 receives the detection signal from the refrigerating compartment door open / close detecting means 12 and operates the cold air circulation means 25 for refrigerating.
【００５８】以上のように構成された本発明の冷蔵庫の
第２の実施例の動作について説明を行う。The operation of the refrigerator according to the second embodiment of the present invention will be described.
【００５９】冷蔵室２の庫内温度が熱負荷等により上昇
すると、冷蔵室温度検知手段４が所定の第一の冷蔵室温
度範囲（例えばｔ１℃±αｄｅｇ）の上限値ｔ１ｕ以上
を検知する。システム制御手段１６はこの検知信号を受
けて圧縮機１５を作動し、且つ切替弁２２を開状態に動
作する。When the internal temperature of the refrigerator compartment 2 rises due to a heat load or the like, the refrigerator compartment temperature detecting means 4 detects an upper limit value t1u or more of a predetermined first refrigerator compartment temperature range (for example, t1 ° C. ± αdeg). The system control means 16 receives the detection signal, operates the compressor 15, and operates the switching valve 22 in the open state.
【００６０】圧縮機１５の作動により吐出された高温高
圧の冷媒は、凝縮器１７により凝縮液化し、そして減圧
量の小さい冷蔵用減圧手段２０に切り替わったことによ
り、大部分の冷媒は冷蔵用減圧手段２０の方へ流入し減
圧され、冷蔵用蒸発器２１で蒸発帰化し冷却を行う。冷
蔵用蒸発器２１で気化した冷媒は、再び圧縮機１５に吸
入される。The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 15 is condensed and liquefied by the condenser 17 and switched to the refrigeration decompression means 20 having a small decompression amount. It flows into the means 20 and is decompressed, and is vaporized and cooled by the refrigeration evaporator 21. The refrigerant vaporized in the refrigeration evaporator 21 is sucked into the compressor 15 again.
【００６１】冷蔵室２の庫内温度が低下し、冷蔵室温度
検知手段４が前記第一の冷蔵室温度範囲の下限値ｔ１ｂ
以下を検知する。システム制御手段１６はこの検知信号
を受けて圧縮機１５を停止し、且つ切替弁２２を閉状態
に動作する。The temperature in the refrigerator compartment 2 drops, and the refrigerator temperature detecting means 4 detects the lower limit value t1b of the first refrigerator compartment temperature range.
Detects the following: The system control means 16 receives the detection signal, stops the compressor 15, and operates the switching valve 22 in the closed state.
【００６２】冷蔵室扉１１に開閉動作を行うと、冷蔵室
扉開閉検知手段１２が開動作後の閉動作の信号を検知す
る。システム制御手段１６はこの開動作後の閉動作の信
号を受けた時間Ｔ１から所定時間Ｔａの間、冷蔵用冷気
循環手段２５を作動し、冷蔵室２を冷蔵用冷気循環手段
２５の運転による強制対流で急速に冷却する。When the refrigerating compartment door 11 is opened and closed, the refrigerating compartment door opening and closing detecting means 12 detects a signal of the closing operation after the opening operation. The system control means 16 operates the refrigeration cool air circulating means 25 for a predetermined time Ta from the time T1 when the signal of the closing operation after the opening operation is received, and forcibly operates the refrigeration chamber 2 by the operation of the refrigeration cool air circulating means 25. Cools rapidly with convection.
【００６３】冷蔵用冷気循環手段２５が運転されると、
冷蔵室２の空気は冷蔵用蒸発器２０のプレート部に設け
られた複数個の冷気吸入孔２６から吸い込まれ、さらに
冷気循環風路２４を通過し、再び冷蔵室２へ吐出され
る。空気が冷気吸入孔２６を通過するとき空気は冷蔵用
蒸発器２１で熱交換を行い、より低温の空気として冷蔵
室２へ吐出される。When the cooling air circulation means 25 is operated,
The air in the refrigerating compartment 2 is sucked from a plurality of cold air suction holes 26 provided in the plate portion of the refrigerating evaporator 20, further passes through the cool air circulation passage 24, and is discharged to the refrigerating compartment 2 again. When the air passes through the cold air suction hole 26, the air exchanges heat with the refrigeration evaporator 21 and is discharged to the refrigeration chamber 2 as lower-temperature air.
【００６４】以上の動作により原則として通常冷却時は
自然対流により冷却のため冷蔵用冷気循環手段２５のフ
ァン音がなく低騒音化が図られる。By the above operation, in principle, during normal cooling, cooling is performed by natural convection, so that there is no fan noise of the cooling air circulation means 25 for refrigeration, and low noise is achieved.
【００６５】加えて、冷蔵用冷気循環手段２５の入力と
モーター発熱量の削減により低消費電力化を図ることが
できる。さらに、原則として自然対流で冷却するため循
環空気が貯蔵食品に対して直接的に当たることがなく貯
蔵食品の乾燥抑制の効果を有し、食品鮮度を従来以上に
延長できる。そして、冷蔵室扉１１の開閉動作により庫
内の負荷が増大したときは、冷蔵用冷気循環手段２５の
運転により冷凍能力の向上と強制対流による冷却速度の
促進を図り、冷蔵室２庫内を速やかに冷却することがで
きる。In addition, it is possible to reduce power consumption by reducing the input of the refrigeration cool air circulation means 25 and the amount of heat generated by the motor. In addition, since cooling is performed by natural convection in principle, the circulating air does not directly hit the stored food, which has the effect of suppressing the drying of the stored food, and the freshness of the food can be extended more than before. When the load in the refrigerator increases due to the opening / closing operation of the refrigerator compartment door 11, the operation of the refrigeration cool air circulation means 25 improves the refrigerating capacity and promotes the cooling speed by forced convection. It can be cooled quickly.
【００６６】（実施例３）図５は本発明の第３の実施例
を示す冷蔵庫の断面概略図、図６は本発明の第３の実施
例を示すタイムチャートである。(Embodiment 3) FIG. 5 is a schematic sectional view of a refrigerator showing a third embodiment of the present invention, and FIG. 6 is a time chart showing a third embodiment of the present invention.
【００６７】冷蔵庫周囲の外気温度を検知できる冷蔵庫
の任意の場所に、例えばサーミスタである外気温度検知
手段２８を備えている。An outside air temperature detecting means 28, for example, a thermistor, is provided at an arbitrary place of the refrigerator which can detect the outside air temperature around the refrigerator.
【００６８】システム制御手段１６は外気温度検知手段
２８からの検知信号を受信し、且つ冷蔵用冷気循環手段
２５の動作を行うものである。The system control means 16 receives the detection signal from the outside air temperature detection means 28 and operates the cooling air circulation means 25 for refrigeration.
【００６９】以上のように構成された本発明の冷蔵庫の
第３の実施例の動作について説明を行う。The operation of the refrigerator according to the third embodiment of the present invention configured as described above will be described.
【００７０】外気温度検知手段２８がある時間Ｔ２にお
いて所定の外気温度（例えばｔａｔｍ℃）以上を検知す
る。システム制御手段１６はこの検知信号を受けて、冷
蔵室２冷却時の圧縮機の１５運転に同期して、冷蔵用冷
気循環手段２５を作動する。The outside air temperature detecting means 28 detects a predetermined outside air temperature (for example, tatm ° C.) or more at a certain time T2. In response to the detection signal, the system control means 16 operates the refrigerating cool air circulation means 25 in synchronization with the operation of the compressor 15 when the refrigerating compartment 2 is cooled.
【００７１】外気温度が低下し、ある時間Ｔ３において
外気温度検知手段２８が所定の外気温度ｔａｔｍ以下の
温度を検知する。システム制御手段１６はこの検知信号
を受けて冷蔵用冷気循環手段２５を停止する。The outside air temperature decreases, and at a certain time T3, the outside air temperature detecting means 28 detects a temperature lower than a predetermined outside air temperature tatm. The system control means 16 receives the detection signal and stops the cooling air circulation means 25 for refrigeration.
【００７２】以上の動作により、原則として自然対流に
より冷蔵室２を冷却するが、例えば夏季など冷蔵庫周囲
の外気温度が比較的高くなりキャビネットの吸熱負荷量
が増大したときは、冷蔵用冷気循環手段２５の運転によ
り冷凍能力の向上を図り、強制対流による冷却速度の促
進を図り、冷蔵室２庫内を速やかに冷却する。With the above operation, the refrigerator compartment 2 is cooled by natural convection in principle. However, when the outside air temperature around the refrigerator becomes relatively high in summer, for example, and the heat absorption load of the cabinet increases, the cool air circulation means for refrigerator is used. 25, the refrigeration capacity is improved, the cooling speed is increased by forced convection, and the inside of the refrigerator compartment 2 is quickly cooled.
【００７３】（実施例４）図７は本発明の第４の実施例
を示すタイムチャートである。(Embodiment 4) FIG. 7 is a time chart showing a fourth embodiment of the present invention.
【００７４】本発明の冷蔵庫の第４の実施例の動作につ
いて説明を行う。少なくとも１つの冷蔵室温度検知手段
４がある時間Ｔ４において所定の第二の冷蔵室温度範囲
（例えばｔ２℃±βｄｅｇ）の上限値ｔ２ｕ以上を検知
する。システム制御手段１６はこの検知信号を受けて冷
蔵用冷気循環手段２５を作動する。なお、前記第二の冷
蔵室温度範囲の上限値ｔ２ｕは前記第一の冷蔵室温度範
囲の上限値ｔ１ｕよりも高い温度設定値とする。また、
前記第二の冷蔵室温度範囲の下限値ｔ２ｂは前記第一の
冷蔵室温度範囲の下限値ｔ１ｂよりも高い設定値とす
る。The operation of the fourth embodiment of the refrigerator according to the present invention will be described. At least one refrigerating room temperature detecting means 4 detects at a time T4 an upper limit value t2u or more of a predetermined second refrigerating room temperature range (for example, t2 ° C. ± βdeg). The system control means 16 operates the refrigeration cool air circulation means 25 in response to the detection signal. The upper limit value t2u of the second refrigerator compartment temperature range is a temperature set value higher than the upper limit value t1u of the first refrigerator compartment temperature range. Also,
The lower limit value t2b of the second refrigerator compartment temperature range is a set value higher than the lower limit value t1b of the first refrigerator compartment temperature range.
【００７５】庫内温度が低下し、ある時間Ｔ５において
冷蔵室温度検知手段４が前記第二の冷蔵室温度範囲の下
限値ｔ２ｂを検知すると、システム制御手段１６はこの
検知信号を受けて冷蔵用冷気循環手段２５を停止する。
なお、図７の説明はｔ２ｂ＝ｔ１と設定したときの例を
示している。When the refrigerator temperature decreases and the refrigerator temperature detecting means 4 detects the lower limit value t2b of the second refrigerator room temperature range at a certain time T5, the system control means 16 receives this detection signal and receives the detection signal. The cool air circulation means 25 is stopped.
Note that the description of FIG. 7 shows an example when t2b = t1 is set.
【００７６】以上の動作により、原則として自然対流に
より冷蔵室２を冷却するが、高温、多量など負荷大の食
品等が収納されたとき並びに冷蔵庫電源プラグ投入時な
ど冷蔵室２の庫内温度の上昇幅が大きく、所定の前記第
一の冷蔵室温度範囲の上限値よりも高く設定されている
前記第二の冷蔵室温度の上限値以上になったときは冷蔵
用冷気循環手段２５の運転により冷凍能力の向上と強制
対流による冷却速度の促進を図り、冷蔵室２庫内を速や
かに冷却する。By the above operation, the refrigerator compartment 2 is cooled by natural convection in principle. However, the temperature of the refrigerator compartment 2 when the food with a large load such as a high temperature and a large amount is stored and when the power plug of the refrigerator is turned on. When the rising width is greater than or equal to the upper limit of the second refrigerator compartment temperature which is set higher than the upper limit of the predetermined first refrigerator compartment temperature range, the operation of the refrigeration cool air circulation unit 25 is performed. Improving the refrigerating capacity and promoting the cooling speed by forced convection, the inside of the refrigerator compartment 2 is quickly cooled.
【００７７】（実施例５）図８は本発明の第５の実施例
を示す冷蔵庫の断面概略図、図９は本発明の第５の実施
例を示すタイムチャートである。(Embodiment 5) FIG. 8 is a schematic sectional view of a refrigerator showing a fifth embodiment of the present invention, and FIG. 9 is a time chart showing a fifth embodiment of the present invention.
【００７８】本発明の冷蔵庫の第７の実施例の動作につ
いて説明を行う。内蔵タイマー２９をシステム制御手段
１６に設ける。内蔵タイマー２９は冷蔵室２冷却時の切
替弁２２の開動作に同期して、以下のように冷蔵用冷気
循環手段２５の動作について制御を行う。The operation of the seventh embodiment of the refrigerator according to the present invention will be described. A built-in timer 29 is provided in the system control means 16. The built-in timer 29 controls the operation of the refrigerating cool air circulation unit 25 as described below in synchronization with the opening operation of the switching valve 22 when the refrigerator compartment 2 is cooled.
【００７９】内蔵タイマー２９の時間制御により冷蔵用
冷気循環手段２５を所定時間Ｔｂの間運転する。Ｔｂ時
間運転した後、内蔵タイマー２９は冷蔵用冷気循環手段
２５を所定時間Ｔｃの間停止する。冷蔵室２冷却時の切
替弁２２の開動作の間に、このような冷蔵用冷気循環手
段２５のＯＮ／ＯＦＦ動作を交互に行う。切替弁２２が
閉状態になったとき、内蔵タイマー２９は冷蔵用冷気循
環手段２５に対する動作制御を停止する。The time control of the built-in timer 29 causes the cooling air circulation means 25 to operate for a predetermined time Tb. After the operation for the time Tb, the built-in timer 29 stops the cooling air circulation means 25 for refrigeration for a predetermined time Tc. During the opening operation of the switching valve 22 at the time of cooling the refrigerating compartment 2, the ON / OFF operation of the refrigerating cool air circulation means 25 is performed alternately. When the switching valve 22 is closed, the built-in timer 29 stops the operation control for the refrigeration cool air circulation unit 25.
【００８０】以上の動作により、自然対流により冷蔵室
２を冷却しているとき、庫内の温度分布幅が大きくな
り、食品の鮮度は庫内貯蔵場所によって影響されること
が考えられるが、冷蔵用冷気循環手段２５を所定の間隔
で定期的に運転することにより、冷蔵室２の空気を循環
させ、庫内温度のばらつき幅を小さく回復することがで
き、庫内貯蔵場所の違いによる食品鮮度（食品の冷え具
合）のムラを小さくできる。特に、冷蔵用蒸発器２１近
辺の食品の冷えすぎ・凍結を抑制することができる。According to the above operation, when the refrigerator compartment 2 is cooled by natural convection, the temperature distribution width in the refrigerator increases, and the freshness of the food may be affected by the storage location in the refrigerator. By regularly operating the cooling air circulation means 25 at predetermined intervals, the air in the refrigerator compartment 2 can be circulated, and the variation width of the internal temperature can be recovered to a small extent. (Unevenness of food cooling) can be reduced. In particular, the food in the vicinity of the refrigeration evaporator 21 can be suppressed from being too cold or frozen.
【００８１】（実施例６）図１０は本発明の第６の実施
例を示すタイムチャートである。(Embodiment 6) FIG. 10 is a time chart showing a sixth embodiment of the present invention.
【００８２】冷蔵室２冷却時の切替弁２２の開動作に同
期して、システム制御手段１６は回転数可変機能を有す
る冷蔵用冷気循環手段２５を運転させる。このときの冷
蔵用冷気循環手段２５の回転数は、冷蔵室２に微風が行
き渡る程度に減少させる。In synchronization with the opening operation of the switching valve 22 at the time of cooling the refrigerating compartment 2, the system control means 16 operates the refrigerating cool air circulating means 25 having the function of varying the number of revolutions. At this time, the number of rotations of the refrigeration cool air circulation means 25 is reduced to such an extent that the breeze reaches the refrigeration compartment 2.
【００８３】以上の動作により、自然対流により冷蔵室
２を冷却しているとき、庫内の温度分布幅が大きくな
り、食品の鮮度は庫内貯蔵場所によって影響されること
になるが、冷蔵用冷気循環手段２５を比較的低い回転数
で運転することで冷蔵室２に微風を行き渡らせ、冷蔵室
２の空気が緩やかに循環し、庫内温度の分布幅を小さく
維持し、冷蔵用蒸発器２１近辺の食品の冷えすぎ・凍結
を抑制することができる。一般に低い回転数ほど庫内温
度の分布幅を小さく維持しにくいが、請求項１記載の冷
蔵庫の構成にあるように冷気循環風路２４の簡素化によ
り循環空気に対する通風抵抗が小さいため、比較的低い
回転数で冷蔵室２に均一に空気循環配分が可能である。
冷蔵室２を循環する空気は微風であるため、貯蔵食品に
対する乾燥の影響も少ない。With the above operation, when the refrigerator compartment 2 is cooled by natural convection, the temperature distribution width in the refrigerator increases, and the freshness of the food is affected by the storage location in the refrigerator. By operating the cool air circulation means 25 at a relatively low rotation speed, the breeze is distributed to the refrigerating room 2, the air in the refrigerating room 2 circulates slowly, the distribution width of the inside temperature is kept small, and the evaporator for refrigerating is used. 21 can be suppressed from being too cold or frozen. Generally, it is difficult to maintain a small distribution width of the internal temperature as the rotation speed becomes lower, but the ventilation resistance to the circulating air is relatively small due to the simplification of the cool air circulation air passage 24 as in the configuration of the refrigerator according to the first aspect. The air circulation can be uniformly distributed to the refrigerator compartment 2 at a low rotation speed.
Since the air circulating in the refrigerator compartment 2 is a breeze, there is little influence of drying on the stored food.
【００８４】（実施例７）図１１は本発明の第７の実施
例を示すタイムチャートである。(Embodiment 7) FIG. 11 is a time chart showing a seventh embodiment of the present invention.
【００８５】本発明の冷蔵庫の第７の実施例の動作につ
いて説明を行う。冷蔵室２の庫内温度の測定が可能な任
意の場所に複数個の冷蔵室温度検知手段４を備えてあ
る。The operation of the seventh embodiment of the refrigerator according to the present invention will be described. A plurality of refrigerating room temperature detecting means 4 are provided at an arbitrary location where the temperature inside the refrigerating room 2 can be measured.
【００８６】複数個の冷蔵室温度検知手段４が冷蔵室２
のそれぞれの個所の庫内温度を検知すると、システム制
御手段１６はそれら複数個の検知信号を受け且つ、それ
ら複数個の検知信号の最高温度ｔｍａｘと最低温度ｔｍ
ｉｎの信号を認識し、さらに最高温度ｔｍａｘと最低温
度ｔｍｉｎの温度差ｔｍが所定温度差ｔａｖｅ以下を維
持しているかを判断する。A plurality of refrigerating compartment temperature detecting means 4
, The system control means 16 receives the plurality of detection signals and detects the maximum temperature tmax and the minimum temperature tm of the plurality of detection signals.
The signal of “in” is recognized, and it is further determined whether or not the temperature difference tm between the maximum temperature tmax and the minimum temperature tmin is equal to or less than a predetermined temperature difference tave.
【００８７】システム制御手段１６がｔｍ≦ｔａｖｅを
判断したとき、冷蔵用冷気循環手段２５を停止状態に保
つ。一方、システム制御手段１６がｔｍ＞ｔａｖｅを判
断したとき、冷蔵用冷気循環手段２５を運転する。冷蔵
用冷気循環手段２５の運転により庫内の空気が循環さ
れ、システム制御手段１６がｔｍ＞ｔａｖｅを判断した
とき冷蔵用冷気循環手段２５を停止する。When the system control means 16 determines that tm ≦ tave, the refrigeration cool air circulation means 25 is kept stopped. On the other hand, when the system control means 16 determines tm> tave, the cooling air circulation means 25 for refrigeration is operated. The air in the refrigerator is circulated by the operation of the refrigeration cool air circulation unit 25, and when the system control unit 16 determines tm> tave, the refrigeration cool air circulation unit 25 is stopped.
【００８８】以上により、自然対流により冷蔵室２を冷
却しているとき、庫内の温度分布のばらつきが大きくな
り、食品の鮮度は庫内場所によって影響されることにな
るが、温度分布のばらつきが所定の許容範囲内に回復す
るまで庫内空気を循環させることにより、常時、より快
適にばらつき幅を許容範囲内に維持することができ、庫
内全域の食品鮮度を常に均一に保持できる。特に、冷蔵
用蒸発器２１近辺の食品の冷えすぎ・凍結を抑制するこ
とができる。As described above, when the refrigerator compartment 2 is cooled by natural convection, the variation in the temperature distribution in the refrigerator increases, and the freshness of the food is affected by the location in the refrigerator. By circulating the air inside the refrigerator until it recovers to within the predetermined allowable range, the variation width can always be maintained more comfortably within the allowable range, and the freshness of the food in the entire warehouse can always be kept uniform. In particular, the food in the vicinity of the refrigeration evaporator 21 can be suppressed from being too cold or frozen.
【００８９】[0089]
【発明の効果】以上の説明から明らかなように本発明の
冷蔵庫は、少なくとも一つの冷凍室と少なくとも一つの
冷蔵室から成る冷蔵庫箱体と、圧縮機と凝縮器と冷凍用
減圧手段と冷凍用蒸発器と前記冷凍用減圧手段と前記冷
凍用蒸発器に対して並列に冷蔵用減圧手段と冷蔵用蒸発
器と前記冷蔵用減圧手段の入口部に切替弁と、それらを
順次接合した冷却システムと、前記冷蔵用蒸発器の近傍
に冷蔵用冷気循環手段と前記冷凍用蒸発器の近傍に冷凍
用冷気循環手段と、前記冷凍室の室温を検知する少なく
とも一つの冷凍室温度検知手段と、前記冷凍室の室温を
検知する少なくとも一つの冷凍室温度検知手段と、前記
冷蔵室温度検知手段と前記冷凍室温度検知手段による各
室の冷却要求信号を受信し、且つ前記圧縮機と前記冷蔵
用冷気循環手段と前記冷凍用冷気循環手段と前記切替弁
を制御するシステム制御手段を設け、前記切替弁は前記
冷蔵室に対する前記システム制御手段からの冷却命令信
号に同期して開閉動作し、前記冷蔵用蒸発器は前記冷蔵
室内の循環空気の通路を構成する冷気循環風路の任意の
壁面を構成することにより、電動ダンパ除去且つ、冷蔵
室冷気循環風路構成の簡素化から無効容積の省スペース
化を図ることができるという効果を奏する。As is apparent from the above description, the refrigerator of the present invention comprises a refrigerator box comprising at least one freezer compartment and at least one refrigerating compartment, a compressor, a condenser, a decompression means for freezing, and a refrigerator. An evaporator, the refrigeration decompression means, and a switching valve at the inlet of the refrigeration decompression means, the refrigeration evaporator and the refrigeration decompression means in parallel to the refrigeration evaporator, and a cooling system in which they are sequentially joined. A refrigeration cool air circulating means near the refrigeration evaporator, a refrigeration cool air circulating means near the refrigeration evaporator, at least one freezing room temperature detecting means for detecting a room temperature of the freezing room, At least one freezing room temperature detecting means for detecting the room temperature of the room, receiving a request signal for cooling each room by the refrigerating room temperature detecting means and the freezing room temperature detecting means, and circulating the compressor and the cold air for refrigeration. Means The cooling air circulation means for refrigeration and system control means for controlling the switching valve are provided, the switching valve opens and closes in synchronization with a cooling command signal from the system control means for the refrigerator compartment, and the evaporator for cooling is By forming an arbitrary wall surface of a cool air circulating air path constituting a passage of the circulating air in the refrigerator compartment, an electric damper is removed, and a space of an ineffective volume is reduced due to a simplification of the cool air circulation air path structure of the refrigerator compartment. This has the effect that it can be performed.
【００９０】また、冷蔵室に独自の熱交換器を設けたこ
とにより懸念される冷蔵用蒸発器の配置スペースの問題
もない。Further, there is no problem in the arrangement space of the refrigeration evaporator, which is a concern due to the provision of a unique heat exchanger in the refrigeration compartment.
【００９１】また、冷蔵室扉の開閉動作を検知する冷蔵
室扉開閉検知手段を設け、前記システム制御手段は前記
冷蔵室扉開閉検知手段の検知信号を受信し、通常冷却時
は原則として前記冷蔵用蒸発器の熱交換により自然対流
で前記冷蔵室庫内を所定の第一の冷蔵室温度範囲の下限
まで冷却し、前記冷蔵室扉開閉検知手段が前記冷蔵室扉
の開動作後の閉動作を検知したときは前記冷蔵用冷気循
環手段を運転し前記冷蔵室庫内を強制対流で冷却するこ
とにより、通常冷却時は自然対流による冷却のため冷蔵
用冷気循環手段のファン音がなく低騒音化が図られると
いう効果を奏する。また、前記各室個別に前記冷凍用冷
気循環手段と前記冷蔵用冷気循環手段を設けることで前
記各冷気循環手段が冷気を対流させる範囲は狭く、必要
風量確保のための回転数を低くすることができ、騒音を
抑制することができる。Further, a refrigerating compartment door opening / closing detecting means for detecting the refrigerating compartment door opening / closing operation is provided, and the system control means receives a detection signal of the refrigerating compartment door opening / closing detecting means. The inside of the refrigerator compartment is cooled to the lower limit of a predetermined first refrigerator compartment temperature range by natural convection due to heat exchange of the evaporator, and the closing operation after the opening operation of the refrigerator compartment door is performed by the refrigerator compartment door opening / closing detecting means. When the cooling air circulation means is detected, the inside of the refrigerator compartment is cooled by forced convection by operating the refrigeration cool air circulation means. This has the effect of realizing the conversion. Further, by providing the cooling air circulation means for refrigeration and the cooling air circulation means for refrigeration individually in each of the chambers, the range in which the cooling air circulation means convects the cool air is narrow, and the number of revolutions for securing the required air volume is reduced. And noise can be suppressed.
【００９２】加えて、冷蔵用冷気循環手段の入力とモー
ター発熱量の削減により低消費電力化が図られる。通常
冷却時は自然対流で冷却するため循環空気が貯蔵食品に
対して直接的に当たることがなく貯蔵食品の乾燥抑制の
効果を有し、食品鮮度を従来以上に延長できる。そし
て、冷蔵室扉の開閉動作により庫内の負荷が増大したと
きは、冷凍能力の向上と強制対流による冷却速度の促進
を図り、冷蔵室庫内を速やかに冷却することができると
いう効果を併せて奏する。In addition, power consumption can be reduced by inputting the cooling air circulation means for refrigeration and reducing the amount of heat generated by the motor. At the time of normal cooling, the circulating air does not directly hit the stored food because it is cooled by natural convection, has the effect of suppressing drying of the stored food, and can extend the freshness of the food more than before. When the load inside the refrigerator increases due to the opening / closing operation of the refrigerator compartment door, the effect of improving the refrigerating capacity and accelerating the cooling rate by forced convection is provided, and the refrigerator compartment can be cooled quickly. Play.
【００９３】また、冷蔵庫周囲の外気温度を検知する外
気温度検知手段を設け、所定の外気温度以上を前記外気
温度検知手段が検知しているとき、前記冷蔵用冷気循環
手段を運転させることにより、夏季など冷蔵庫周囲の外
気温度が比較的高くなりキャビネットの吸熱負荷量が増
大したとき、凍能力の向上を図り、強制対流による冷却
速度の促進を図り、冷蔵室庫内を速やかに冷却するとい
う効果を奏する。Further, an outside air temperature detecting means for detecting an outside air temperature around the refrigerator is provided, and when the outside air temperature detecting means detects a predetermined outside air temperature or more, the cooling air circulation means for refrigeration is operated. When the outside air temperature around the refrigerator becomes relatively high in summer, for example, and the heat absorption load of the cabinet increases, the freezing capacity is improved, the cooling speed is accelerated by forced convection, and the inside of the refrigerator compartment is cooled quickly. To play.
【００９４】また、少なくとも１つの前記冷蔵室温度検
知手段が前記第一の冷蔵室温度範囲の上限値より高く設
定した第二の冷蔵室温度範囲の上限値以上を検知してい
るとき前記冷蔵用冷気循環手段を運転させることによ
り、高温、多量など負荷大の食品等が収納されたとき並
びに冷蔵庫電源プラグ投入時など冷蔵室の庫内温度の上
昇幅が大きくなったとき、強制対流による冷却により冷
凍能力の向上と強制対流による冷却速度の促進を図り、
冷蔵室庫内を速やかに冷却するという効果を奏する。When at least one of the refrigerator compartment temperature detecting means detects a temperature higher than an upper limit value of a second refrigerator compartment temperature range which is set higher than an upper limit value of the first refrigerator compartment temperature range, the temperature of the refrigerator compartment is reduced. By operating the cool air circulation means, when high-temperature, large-volume foods such as large amounts are stored, or when the temperature rise in the refrigerator compartment becomes large, such as when the power plug of the refrigerator is turned on, cooling by forced convection Improving refrigeration capacity and promoting cooling rate by forced convection,
This has the effect of rapidly cooling the inside of the refrigerator compartment.
【００９５】また、前記システム制御手段に内蔵タイマ
ーを設け、前記冷蔵室の冷却時に前記冷蔵室冷気循環手
段を前記内蔵タイマーの時間的制御により所定の間隔で
前記冷気循環手段を運転させることにより、自然対流に
より冷蔵室を冷却して庫内の温度分布のばらつきが大き
くなり、食品の鮮度が庫内貯蔵場所によって影響される
とき、庫内温度のばらつき幅を回復することができ庫内
貯蔵場所の違いによる食品鮮度のムラを小さくできると
いう効果を奏する。Further, the system control means is provided with a built-in timer, and at the time of cooling the refrigerator compartment, the cold room circulating means is operated at predetermined intervals by the temporal control of the built-in timer to operate the cold air circulating means. When the refrigerator compartment is cooled by natural convection and the temperature distribution in the refrigerator increases, and the freshness of the food is affected by the storage location in the refrigerator, the range of the temperature variation in the refrigerator can be recovered and the storage location in the refrigerator can be recovered. This has the effect of reducing unevenness in food freshness due to the difference in
【００９６】さらに、前記冷蔵室の冷却に同期して、前
記冷蔵用冷気循環手段の回転数を減少させて運転し、前
記冷蔵室全域に微風を行き渡らせることにより、冷蔵室
に微風を行き渡らせ、冷蔵室の空気が緩やかに循環し、
庫内温度の分布幅を小さく維持することができるという
効果を奏する。一般に低い回転数ほど庫内温度の分布幅
を小さく維持しにくいが、請求項１記載の冷蔵庫の構成
にあるように冷気循環風路の簡素化により循環空気に対
する通風抵抗が小さいため、比較的低い回転数で冷蔵室
に均一な空気循環配分が可能である。また、冷蔵室２を
循環する空気は微風であるため、貯蔵食品に対する乾燥
の影響も少ない。Further, in synchronism with the cooling of the refrigerator compartment, the cooling air circulation means for the refrigerator is operated at a reduced rotation speed to spread the small breeze throughout the refrigerator compartment so that the small breeze can be distributed to the refrigerator compartment. , The air in the refrigerator compartment circulates slowly,
There is an effect that the distribution width of the internal temperature can be kept small. Generally, it is difficult to maintain a small distribution width of the internal temperature as the rotation speed becomes lower, but as described in the configuration of the refrigerator according to claim 1, the simplification of the cool air circulation air passage reduces the ventilation resistance with respect to the circulating air, so that it is relatively low. Uniform air circulation distribution to the refrigerator compartment is possible at the rotation speed. Further, since the air circulating in the refrigerator compartment 2 is a breeze, the influence of drying on the stored food is small.
【００９７】さらに、前記冷蔵室に複数個の前記冷蔵室
温度検知手段を設け、前記冷蔵室庫内の温度分布幅が所
定範囲以上のばらつきを検知しているとき、前記冷気循
環手段を運転させることにより、温度分布のばらつきが
所定の許容範囲内に回復するまで庫内空気を循環させる
ことにより、常時、より適切にばらつき幅を許容範囲内
に維持することができ、庫内全域の食品鮮度を常に均一
に保持できるという効果を奏する。庫内温度のばらつき
が大きいことを確認したときのみ冷蔵室冷気循環手段を
運転させるので、貯蔵食品に対する乾燥の影響もより少
なくできる。Further, a plurality of the refrigerating compartment temperature detecting means are provided in the refrigerating compartment, and when the temperature distribution width in the refrigerating compartment has detected a variation exceeding a predetermined range, the cool air circulating means is operated. Thus, by circulating the air in the refrigerator until the variation of the temperature distribution recovers within the predetermined allowable range, the variation width can always be maintained more appropriately within the allowable range, and the freshness of the food in the entire warehouse can be maintained. Can be maintained uniformly at all times. The refrigerator air circulation means is operated only when it is confirmed that there is a large variation in the temperature in the refrigerator, so that the influence of drying on the stored food can be further reduced.
【図１】本発明の第１の実施例を示す冷蔵庫の断面概略
図FIG. 1 is a schematic cross-sectional view of a refrigerator showing a first embodiment of the present invention.
【図２】本発明の第１の実施例を示す冷蔵庫の冷却シス
テム概略図FIG. 2 is a schematic diagram of a refrigerator cooling system showing a first embodiment of the present invention.
【図３】本発明の第２の実施例を示す冷蔵庫の断面概略
図FIG. 3 is a schematic sectional view of a refrigerator showing a second embodiment of the present invention.
【図４】本発明の第２の実施例を示すタイムチャートFIG. 4 is a time chart showing a second embodiment of the present invention.
【図５】本発明の第３の実施例を示す冷蔵庫の断面概略
図FIG. 5 is a schematic cross-sectional view of a refrigerator showing a third embodiment of the present invention.
【図６】本発明の第３の実施例を示すタイムチャートFIG. 6 is a time chart showing a third embodiment of the present invention.
【図７】本発明の第４の実施例を示すタイムチャートFIG. 7 is a time chart showing a fourth embodiment of the present invention.
【図８】本発明の第５の実施例を示す冷蔵庫の断面概略
図FIG. 8 is a schematic cross-sectional view of a refrigerator showing a fifth embodiment of the present invention.
【図９】本発明の第５の実施例を示すタイムチャートFIG. 9 is a time chart showing a fifth embodiment of the present invention.
【図１０】本発明の第６の実施例を示すタイムチャートFIG. 10 is a time chart showing a sixth embodiment of the present invention.
【図１１】本発明の第７の実施例を示すタイムチャートFIG. 11 is a time chart showing a seventh embodiment of the present invention.
【図１２】従来の冷蔵庫の断面概略図FIG. 12 is a schematic sectional view of a conventional refrigerator.
１ 冷凍室 ２ 冷蔵室 ３ 冷凍室温度検知手段 ４ 冷蔵室温度検知手段 ５ 冷凍室扉 ６ 冷凍室扉開閉検知手段 ７ 蒸発器 ８ 電動ファン ９ 除霜ヒーター １０ 除霜温度検知手段 １１ 冷蔵室扉 １２ 冷蔵室扉開閉検知手段 １３ 冷気通路 １４ 電動ダンパ １５ 圧縮機 １６ システム制御手段 １７ 凝縮器 １８ 冷凍用減圧手段 １９ 冷凍用蒸発器 ２０ 冷蔵用減圧手段 ２１ 冷蔵用蒸発器 ２２ 切替弁 ２３ 冷却システム ２４ 冷気循環風路 ２５ 冷蔵用冷気循環手段 ２６ 冷気吸入孔 ２７ 冷凍用冷気循環手段 ２８ 外気温度検知手段 ２９ 内蔵タイマー REFERENCE SIGNS LIST 1 freezer compartment 2 refrigerating compartment 3 freezer compartment temperature detecting means 4 refrigerating compartment temperature detecting means 5 freezing compartment door 6 freezing compartment door open / close detecting means 7 evaporator 8 electric fan 9 defrost heater 10 defrost temperature detecting means 11 refrigerating compartment door 12 Refrigerator compartment door open / close detection means 13 Cold air passage 14 Electric damper 15 Compressor 16 System control means 17 Condenser 18 Refrigeration decompression means 19 Refrigeration evaporator 20 Refrigeration decompression means 21 Refrigeration evaporator 22 Switching valve 23 Cooling system 24 Cool air Circulating air passage 25 Cold air circulation means for refrigeration 26 Cold air suction hole 27 Cold air circulation means for freezing 28 Outside air temperature detection means 29 Built-in timer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 兵藤 明 大阪府東大阪市高井田本通４丁目２番５号 松下冷機株式会社内 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Hyodo 4-5-2-5 Takaidahondori, Higashiosaka-shi, Osaka Matsushita Refrigeration Co., Ltd.
Claims (7)
つの冷蔵室から成る冷蔵庫箱体と、圧縮機と凝縮器と冷
凍用減圧手段と冷凍用蒸発器と前記冷凍用減圧手段と前
記冷凍用蒸発器に対して並列に冷蔵用減圧手段と冷蔵用
蒸発器と前記冷蔵用減圧手段の入口部に切替弁と、それ
らを順次接合した冷却システムと、前記冷蔵用蒸発器の
近傍に冷蔵用冷気循環手段と前記冷凍用蒸発器の近傍に
冷凍用冷気循環手段と、前記冷蔵室の室温を検知する少
なくとも一つの冷蔵室温度検知手段と、前記冷凍室の室
温を検知する少なくとも一つの冷凍室温度検知手段と、
前記冷蔵室温度検知手段と前記冷凍室温度検知手段によ
る各室の冷却要求信号を受信し、且つ前記圧縮機と前記
冷蔵用冷気循環手段と前記冷凍用冷気循環手段と前記切
替弁を制御するシステム制御手段を設け、前記切替弁は
前記冷蔵室に対する前記システム制御手段からの冷却命
令信号に同期して開閉動作し、前記冷蔵用蒸発器は前記
冷蔵室内の循環空気の通路を構成する冷気循環風路の任
意の壁面を構成することを特徴とする冷蔵庫。1. A refrigerator box comprising at least one freezer compartment and at least one refrigerating compartment, a compressor, a condenser, a freezing pressure reducing means, a freezing evaporator, the freezing pressure reducing means, and the freezing evaporator. A refrigeration depressurizing means, a refrigeration evaporator, a switching valve at the inlet of the refrigeration depressurizing means, a cooling system in which they are sequentially joined, and a refrigeration cool air circulation means in the vicinity of the refrigeration evaporator. Refrigeration air circulation means in the vicinity of the refrigeration evaporator, at least one refrigeration room temperature detection means for detecting the room temperature of the refrigeration room, and at least one refrigeration room temperature detection means for detecting the room temperature of the refrigeration room When,
A system that receives a request signal for cooling each room by the refrigerator temperature detecting means and the freezing room temperature detecting means, and controls the compressor, the cold air circulating means for cooling, the cold air circulating means for freezing, and the switching valve. Control means, wherein the switching valve opens and closes in synchronism with a cooling command signal from the system control means for the refrigerator compartment, and the evaporator for cooling comprises a cool air circulating air forming a passage of circulating air in the refrigerator compartment. A refrigerator comprising an arbitrary wall of a road.
開閉検知手段を設け、前記システム制御手段は前記冷蔵
室扉開閉検知手段の検知信号を受信し、原則として通常
冷却時は前記冷蔵用蒸発器の熱交換により自然対流で前
記冷蔵室庫内を所定の第一の冷蔵室温度範囲の下限値ま
で冷却し、前記冷蔵室扉開閉検知手段が前記冷蔵室扉の
開動作後の閉動作を検知したときは前記冷蔵用冷気循環
手段を運転し前記冷蔵室庫内を強制対流で冷却すること
を特徴とする請求項１記載の冷蔵庫。2. A refrigerating compartment door opening / closing detecting means for detecting opening / closing operation of a refrigerating compartment door, wherein the system control means receives a detection signal of the refrigerating compartment door opening / closing detecting means. The inside of the refrigerator compartment is cooled to a lower limit value of a predetermined first refrigerator compartment temperature range by natural convection due to heat exchange of the evaporator, and the refrigerator compartment door opening / closing detecting means is closed after the refrigerator compartment door is opened. 2. The refrigerator according to claim 1, wherein when the operation is detected, the cooling air circulation means is operated to cool the inside of the refrigerator compartment by forced convection.
度検知手段を設け、所定の外気温度以上を前記外気温度
検知手段が検知しているとき、前記冷蔵用冷気循環手段
を運転させることを特徴とする請求項１または請求項２
記載の冷蔵庫。3. An outside air temperature detecting means for detecting an outside air temperature around the refrigerator, wherein the cooling air circulation means for refrigeration is operated when the outside air temperature detecting means detects a predetermined outside air temperature or more. Claim 1 or Claim 2
The refrigerator as described.
段が前記第一の冷蔵室温度範囲の上限値より高く設定し
た第二の冷蔵室温度範囲の上限値以上を検知していると
き前記冷蔵用冷気循環手段を運転させることを特徴とす
る請求項１〜３いづれか記載の冷蔵庫。4. When the at least one refrigerator compartment temperature detecting means detects at least an upper limit value of a second refrigerator compartment temperature range set higher than the upper limit value of the first refrigerator compartment temperature range, The refrigerator according to any one of claims 1 to 3, wherein the cool air circulation means is operated.
け、冷蔵室の冷却時に前記冷蔵用冷気循環手段を前記内
蔵タイマーの時間制御により所定の間隔で前記冷蔵用冷
気循環手段を運転させることを特徴とする請求項１〜４
いづれか記載の冷蔵庫。5. A built-in timer is provided in a system control means, and the cooling air circulation means for cooling is operated at predetermined intervals by controlling the time of the built-in timer when cooling the refrigerator compartment. Claims 1-4
Refrigerator described either.
環手段の回転数を減少させ、前記冷蔵室に微風を行き渡
らせることを特徴とする請求項１〜４いづれか記載の冷
蔵庫。6. The refrigerator according to any one of claims 1 to 4, wherein the number of revolutions of the refrigerating cool air circulation means is reduced in synchronism with the cooling of the refrigerating compartment, and the breeze is distributed to the refrigerating compartment.
設け、前記冷蔵室庫内の温度分布幅が所定範囲以上のば
らつきを検知しているとき、前記冷蔵用冷気循環手段を
運転させることを特徴とする請求項１〜４いづれか記載
の冷蔵庫。7. A plurality of refrigerating compartment temperature detecting means are provided in the refrigerating compartment, and when the temperature distribution width in the refrigerating compartment has detected a variation exceeding a predetermined range, the refrigerating cool air circulation means is operated. The refrigerator according to any one of claims 1 to 4, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27579396A JPH10122719A (en) | 1996-10-18 | 1996-10-18 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27579396A JPH10122719A (en) | 1996-10-18 | 1996-10-18 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10122719A true JPH10122719A (en) | 1998-05-15 |
Family
ID=17560500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27579396A Pending JPH10122719A (en) | 1996-10-18 | 1996-10-18 | Refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10122719A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001108350A (en) * | 1999-10-01 | 2001-04-20 | Matsushita Refrig Co Ltd | Compressor and refrigerator with compressor |
| JP2002098461A (en) * | 2000-07-21 | 2002-04-05 | Fujitsu General Ltd | Electric refrigerator |
| JP2005172306A (en) * | 2003-12-09 | 2005-06-30 | Matsushita Electric Ind Co Ltd | Refrigerator |
| CN100400987C (en) * | 1999-09-08 | 2008-07-09 | 东芝株式会社 | Electric refrigerator |
| JP2020180721A (en) * | 2019-04-24 | 2020-11-05 | シャープ株式会社 | refrigerator |
| CN114484989A (en) * | 2021-12-13 | 2022-05-13 | 安徽康佳同创电器有限公司 | Air-cooled refrigerator and temperature control method thereof |
-
1996
- 1996-10-18 JP JP27579396A patent/JPH10122719A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400987C (en) * | 1999-09-08 | 2008-07-09 | 东芝株式会社 | Electric refrigerator |
| JP2001108350A (en) * | 1999-10-01 | 2001-04-20 | Matsushita Refrig Co Ltd | Compressor and refrigerator with compressor |
| JP2002098461A (en) * | 2000-07-21 | 2002-04-05 | Fujitsu General Ltd | Electric refrigerator |
| JP2005172306A (en) * | 2003-12-09 | 2005-06-30 | Matsushita Electric Ind Co Ltd | Refrigerator |
| JP2020180721A (en) * | 2019-04-24 | 2020-11-05 | シャープ株式会社 | refrigerator |
| CN114484989A (en) * | 2021-12-13 | 2022-05-13 | 安徽康佳同创电器有限公司 | Air-cooled refrigerator and temperature control method thereof |
| CN114484989B (en) * | 2021-12-13 | 2023-12-01 | 安徽康佳同创电器有限公司 | Air-cooled refrigerator and temperature control method thereof |
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