JP2018091509A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress temperature fluctuation while uniformly maintaining an inside of storage chamber at a set temperature zone in a refrigerator in which a temperature of the storage chamber can be set to a plurality of temperature zones.SOLUTION: A refrigerator 1 comprises: a heat insulation box 2 being partitioned by an upper surface wall 6, a lower surface wall 23, a left side wall 22, a right side wall 2 and a back surface wall 51 and having a storage chamber 16 of which a front surface is opened; a door 18 closing the front surface of the storage chamber 16; and a cooler 34 generating cold air supplied to the storage chamber 16. In the refrigerator 1, the storage chamber 16 comprises: heating means 60 provided on at least one wall surface of the upper surface wall 6, the lower surface wall 23, the left side wall 22, the right side wall 2 and the back surface wall 51; and a cold storage member 70 provided on a wall surface other than the wall surface on which the heating means 60 is provided.SELECTED DRAWING: Figure 2

Description

本発明の実施形態は、冷蔵庫に関するものである。   Embodiments of the present invention relate to refrigerators.

従前より、貯蔵温度を複数の温度帯に設定可能な温度切替室を備えた冷蔵庫が知られている（例えば、下記特許文献１参照）。この冷蔵庫では、冷凍サイクルの冷却器で生成した冷気をダンパ装置で調整しながら温度切替室に供給することで温度切替室を設定された温度帯になるように制御する。   Conventionally, a refrigerator including a temperature switching chamber in which a storage temperature can be set in a plurality of temperature zones is known (for example, see Patent Document 1 below). In this refrigerator, the temperature switching chamber is controlled to be in a set temperature range by supplying cold air generated by the cooler of the refrigeration cycle to the temperature switching chamber while adjusting with a damper device.

しかしながら、設定可能な温度切替室の温度範囲が広くなると、低い温度帯に合わせて冷却器で生成する冷気温度を設定する必要があるため、温度切替室を高い温度帯に設定する場合の冷気供給量が少なくなり、温度切替室の温度分布を均一に保ちつつ温度変動を抑えることが難しい。   However, if the temperature range of the temperature switching chamber that can be set becomes wider, it is necessary to set the cold air temperature generated by the cooler in accordance with the low temperature zone, so the cold air supply when the temperature switching chamber is set to the high temperature zone The amount is reduced, and it is difficult to suppress temperature fluctuations while maintaining a uniform temperature distribution in the temperature switching chamber.

特開平１０−１９７１２９号公報Japanese Patent Laid-Open No. 10-197129

そこで、貯蔵室の温度を複数の温度帯に設定可能な冷蔵庫であっても設定した温度帯で貯蔵室内を均一に保ちつつ温度変動を抑えることができる冷蔵庫を提供することを目的とする。   Then, even if it is a refrigerator which can set the temperature of a storage room to a some temperature range, it aims at providing the refrigerator which can suppress a temperature fluctuation, keeping a storage room uniform in the set temperature range.

本実施形態の冷蔵庫は、上面壁、下面壁、左側壁、右側壁、及び背面壁で仕切られ前面が開口する貯蔵室を有する断熱箱体と、前記貯蔵室の前面を閉塞する扉と、前記貯蔵室に供給する冷気を生成する冷却器と、を備えた冷蔵庫において、前記貯蔵室は、前記上面壁、前記下面壁、前記左側壁、前記右側壁、及び前記背面壁のいずれか１つの壁面に設けられた加熱手段と、前記加熱手段が設けられた壁面以外の壁面に設けられた蓄冷部材とを備えるものである。   The refrigerator of the present embodiment includes a heat insulating box body having a storage chamber that is partitioned by an upper surface wall, a lower surface wall, a left side wall, a right side wall, and a back wall and has a front surface opened, a door that closes the front surface of the storage chamber, A refrigerator that generates cool air to be supplied to the storage room, wherein the storage room is any one of the upper wall, the lower wall, the left wall, the right wall, and the rear wall. And a regenerator member provided on a wall surface other than the wall surface provided with the heating means.

本発明の第１実施形態に係る冷蔵庫の断面図である。It is sectional drawing of the refrigerator which concerns on 1st Embodiment of this invention. 図１の要部拡大図である。It is a principal part enlarged view of FIG. 図２のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図１の冷蔵庫の冷凍サイクルを示す図である。It is a figure which shows the refrigerating cycle of the refrigerator of FIG. 図１に示す冷蔵庫の電気構成を示すブロック図である。It is a block diagram which shows the electric constitution of the refrigerator shown in FIG. 本発明の第２実施形態に係る冷蔵庫の要部拡大断面図である。It is a principal part expanded sectional view of the refrigerator which concerns on 2nd Embodiment of this invention. 本発明の第３実施形態に係る冷蔵庫の要部拡大断面図である。It is a principal part expanded sectional view of the refrigerator which concerns on 3rd Embodiment of this invention. 本発明の第４実施形態に係る冷蔵庫の要部拡大断面図である。It is a principal part expanded sectional view of the refrigerator which concerns on 4th Embodiment of this invention. 本発明の第５実施形態に係る冷蔵庫の要部拡大断面図である。It is a principal part expanded sectional view of the refrigerator which concerns on 5th Embodiment of this invention.

（第１実施形態）
以下、図面に基づいて本発明の一実施形態について説明する。 (First embodiment)
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

本実施形態に係る冷蔵庫１は、図１に示すように、前面に開口する断熱箱体２を備える。断熱箱体２は、鋼板製の外箱３と合成樹脂製の内箱４との間に形成された断熱空間５に真空断熱材や発泡断熱材等の断熱材を有して構成されている。断熱箱体２は内箱４の内側に複数の貯蔵空間が設けられており、貯蔵空間が断熱仕切壁６によって上下に区画されている。   The refrigerator 1 which concerns on this embodiment is provided with the heat insulation box 2 opened to the front, as shown in FIG. The heat insulation box 2 is configured by having a heat insulating material such as a vacuum heat insulating material or a foam heat insulating material in a heat insulating space 5 formed between an outer box 3 made of steel plate and an inner box 4 made of synthetic resin. . The heat insulating box 2 is provided with a plurality of storage spaces inside the inner box 4, and the storage spaces are partitioned vertically by a heat insulating partition wall 6.

断熱仕切壁６の上方の空間は、冷蔵温度帯（例えば、１〜４℃）に冷却される貯蔵室であり、内部がさらに仕切壁７によって上下に区画されている。仕切壁７の上方には複数段の載置棚を設けた冷蔵室１０が設けられ、仕切壁７の下方には野菜室１２が設けられている。冷蔵室１０の背面には、冷蔵室１０内の温度を測定する冷蔵温度センサ２５が設けられている。   The space above the heat insulating partition wall 6 is a storage room that is cooled to a refrigeration temperature zone (for example, 1 to 4 ° C.), and the interior is further partitioned vertically by the partition wall 7. A refrigerating room 10 provided with a plurality of stages of mounting shelves is provided above the partition wall 7, and a vegetable room 12 is provided below the partition wall 7. A refrigeration temperature sensor 25 that measures the temperature in the refrigeration chamber 10 is provided on the back surface of the refrigeration chamber 10.

冷蔵室１０の前面開口部には、ヒンジで枢支された回動式の冷蔵室扉１１が設けられている。冷蔵室扉１１の前面にはこの冷蔵庫１を操作するための操作パネル８が配されている。操作パネル８は、不図示の操作スイッチを操作することで、各貯蔵空間の冷却強度を切り替えて設定したり、後述する温度切替室１６の温度帯を設定する。   At the front opening of the refrigerating room 10, a rotating refrigerating room door 11 pivotally supported by a hinge is provided. An operation panel 8 for operating the refrigerator 1 is disposed on the front surface of the refrigerator compartment door 11. The operation panel 8 switches and sets the cooling intensity of each storage space by operating an operation switch (not shown), or sets a temperature zone of the temperature switching chamber 16 described later.

野菜室１２の前面開口部は、引出し式の野菜室扉１３により閉塞されている。野菜室扉１３の庫内側には、貯蔵容器１４を保持する左右一対の支持枠が固着されており、開扉動作とともに貯蔵容器１４が庫外に引き出されるように構成されている。   The front opening of the vegetable compartment 12 is closed by a drawer-type vegetable compartment door 13. A pair of left and right support frames for holding the storage container 14 is fixed to the inside of the vegetable compartment door 13 so that the storage container 14 is pulled out of the storage as the door is opened.

断熱仕切壁６の下方の空間には、図２及び図３に示すように、自動製氷機を備えた製氷室１５と温度切替室１６とが断熱仕切壁２２を介して左右に併設され、その下方に断熱仕切壁２３を介して冷凍室１７が設けられている。   As shown in FIG. 2 and FIG. 3, an ice making chamber 15 equipped with an automatic ice maker and a temperature switching chamber 16 are provided in the space below the heat insulating partition wall 6 on the left and right sides through the heat insulating partition wall 22. A freezer compartment 17 is provided below through a heat insulating partition wall 23.

製氷室１５及び冷凍室１７は、いずれも冷凍温度帯（例えば、−１７℃以下）に冷却される。冷凍室１７の背面には、冷凍室１７内の温度を測定するための冷凍温度センサ２６が設けられている。   Both the ice making room 15 and the freezing room 17 are cooled to a freezing temperature zone (for example, −17 ° C. or lower). A freezing temperature sensor 26 for measuring the temperature in the freezer compartment 17 is provided on the back surface of the freezer compartment 17.

温度切替室１６は、断熱仕切壁６、２２、２３によって、冷蔵温度帯に冷却される野菜室１２と、冷凍温度帯に冷却される製氷室１５及び冷凍室１７と、断熱区画されている。温度切替室１６の背面は後述するエバカバー５１によって断熱区画されている。
また、温度切替室１６の背面には、温度切替室１６内の温度を測定するための切替室温度センサ２７が設けられている。 The temperature switching chamber 16 is partitioned by a heat insulating partition walls 6, 22, and 23 into a vegetable compartment 12 that is cooled to a refrigeration temperature zone, an ice making chamber 15 and a freezer compartment 17 that are cooled to a freezing temperature zone. The back surface of the temperature switching chamber 16 is insulated by an evaporation cover 51 described later.
A switching chamber temperature sensor 27 for measuring the temperature in the temperature switching chamber 16 is provided on the back surface of the temperature switching chamber 16.

製氷室１５、温度切替室１６、及び冷凍室１７の開口部は、野菜室１２と同様、引き出し式の扉１８，１９により閉塞され、各扉１８，１９の裏面側に固着した左右一対の支持枠に貯蔵容器２０、２１、２９が保持されており、開扉動作とともに該貯蔵容器２０，２１、２９が庫外に引き出されるように構成されている。   The ice making chamber 15, the temperature switching chamber 16, and the freezing chamber 17 have openings that are closed by drawer-type doors 18 and 19 and fixed to the back side of each door 18 and 19, as in the vegetable compartment 12. The storage containers 20, 21, and 29 are held on the frame, and the storage containers 20, 21, and 29 are configured to be pulled out of the cabinet as the door is opened.

冷蔵室１０及び野菜室１２の後部には、エバカバー５０で前後に仕切られた冷蔵冷却器室３２と、冷蔵室１０と冷蔵冷却器室３２とを連結するダクト３３が形成されている。冷蔵冷却器室３２には、冷蔵冷却器３０及び冷蔵ファン３１が収納されており、冷蔵冷却器３０で冷却した冷蔵冷却器室３２の空気が冷蔵ファン３１によってダクト３３を介して冷蔵室１０へ供給される。   At the rear of the refrigerator compartment 10 and the vegetable compartment 12, a refrigerator refrigerator 32 that is divided forward and backward by an evaporative cover 50 and a duct 33 that connects the refrigerator compartment 10 and the refrigerator refrigerator chamber 32 are formed. The refrigeration cooler chamber 32 stores a refrigeration cooler 30 and a refrigeration fan 31, and the air in the refrigeration cooler chamber 32 cooled by the refrigeration cooler 30 is sent to the refrigeration chamber 10 through the duct 33 by the refrigeration fan 31. Supplied.

また、製氷室１５、温度切替室１６、及び冷凍室１７の後部には、エバカバー５１で前後に仕切られた冷凍冷却器室３６と、製氷室１５、温度切替室１６、及び冷凍室１７と冷凍冷却器室３６とを連結するダクト３７とが形成されている。冷凍冷却器室３６には、冷凍冷却器３４及び冷凍ファン３５が収納されおり、冷凍冷却器３４で冷却した冷凍冷却器室３６の空気が冷凍ファン３５によってダクト３７を介して製氷室１５、温度切替室１６、及び冷凍室１７へ供給される。   Further, at the rear of the ice making chamber 15, the temperature switching chamber 16, and the freezing chamber 17, a freezing cooler chamber 36 that is divided forward and backward by an evaporative cover 51, the ice making chamber 15, the temperature switching chamber 16, the freezing chamber 17 and the freezing A duct 37 connecting the cooler chamber 36 is formed. The refrigeration cooler chamber 36 houses a refrigeration cooler 34 and a refrigeration fan 35, and the air in the refrigeration cooler chamber 36 cooled by the refrigeration cooler 34 is cooled by the refrigeration fan 35 through the duct 37 and the temperature of the ice making chamber 15. It is supplied to the switching chamber 16 and the freezing chamber 17.

冷蔵冷却器３０及び冷凍冷却器３４は、断熱箱体２の背面下部に設けられた機械室３８内に収納された圧縮機３９や凝縮器４０とともに冷凍サイクル４１を構成する。冷凍サイクル４１は、図４に示すように、高温高圧のガス状の冷媒を吐出する圧縮機３９と、圧縮機３９から吐出されるガス状の冷媒を受けて放熱液化する凝縮器４０と、凝縮器４０の出口側に設けられ冷媒流路を切り換える切替弁４２と、冷蔵冷却器３０及び冷凍冷却器３４と、これらの冷却器３０，３４のための絞り手段としての冷蔵減圧装置４３及び冷凍減圧装置４４と、逆止弁４５とを備え、これらを冷媒パイプによって配管接続することで、圧縮機３９から吐出された冷媒を循環させて冷蔵冷却器３０及び冷凍冷却器３４を冷却する。   The refrigeration cooler 30 and the refrigeration cooler 34 constitute a refrigeration cycle 41 together with a compressor 39 and a condenser 40 housed in a machine room 38 provided at the lower back of the heat insulating box 2. As shown in FIG. 4, the refrigeration cycle 41 includes a compressor 39 that discharges a high-temperature and high-pressure gaseous refrigerant, a condenser 40 that receives the gaseous refrigerant discharged from the compressor 39 and liquefies heat, and a condenser A switching valve 42 that is provided on the outlet side of the cooler 40 and switches the refrigerant flow path, a refrigeration cooler 30 and a refrigeration cooler 34, a refrigeration decompression device 43 and a refrigeration decompression as throttling means for these coolers 30 and 34 The apparatus 44 and the check valve 45 are provided, and these are connected by piping with a refrigerant pipe, whereby the refrigerant discharged from the compressor 39 is circulated to cool the refrigeration cooler 30 and the refrigeration cooler 34.

冷蔵冷却器３０は冷蔵冷却器室３２内の空気と熱交換して冷気を生成する。生成された冷気は、冷蔵ファン３１の送風作用によってダクト３３を介して冷蔵室１０及び野菜室１２に導入され、これらの貯蔵室１０，１２を冷却する。冷蔵室１０及び野菜室１２を冷却し終えた冷気は、吸込口から再び冷蔵冷却器室３２に戻され冷蔵冷却器３０と熱交換して再び冷却される。   The refrigeration cooler 30 exchanges heat with the air in the refrigeration cooler chamber 32 to generate cold air. The generated cold air is introduced into the refrigerator compartment 10 and the vegetable compartment 12 through the duct 33 by the blowing action of the refrigerator fan 31, and cools the storage compartments 10 and 12. The cold air that has finished cooling the refrigerator compartment 10 and the vegetable compartment 12 is returned to the refrigerator refrigerator chamber 32 from the suction port again, and is cooled again by exchanging heat with the refrigerator refrigerator 30.

冷凍冷却器３４は冷凍冷却器室３６内の空気と熱交換して冷気を生成する。生成された冷気は、冷凍ファン３５の送風作用によってダクト３７を介して製氷室１５、温度切替室１６及び冷凍室１７に導入され、これらの貯蔵室１０，１２を冷却する。製氷室１５、温度切替室１６及び冷凍室１７を冷却し終えた冷気は、吸込口から再び冷凍冷却器室３６に戻され冷凍冷却器３４と熱交換して冷却される。   The refrigeration cooler 34 exchanges heat with the air in the refrigeration cooler chamber 36 to generate cold air. The generated cold air is introduced into the ice making chamber 15, the temperature switching chamber 16 and the freezing chamber 17 through the duct 37 by the blowing action of the freezing fan 35, and cools the storage chambers 10 and 12. The cold air that has finished cooling the ice making chamber 15, the temperature switching chamber 16, and the freezer compartment 17 is returned to the freezer cooler chamber 36 through the suction port and is cooled by exchanging heat with the freezer cooler 34.

このような冷蔵庫１において、温度切替室１６は、冷凍冷却器室３６で生成された冷気が吹き出す吹出口４７の開度を変更するダンパ４６と、温度切替室１６内の空気を加熱する加熱手段６０が設けられている。温度切替室１６は、冷凍サイクル４１とともにダンパ４６と加熱手段６０を制御することで、貯蔵温度（内部温度）を複数の温度帯、例えば、−９℃〜−８℃以下の弱冷凍温度帯、−４℃〜−３℃のパーシャル温度帯、０℃〜１℃のチルド温度帯に変更可能になっている。   In such a refrigerator 1, the temperature switching chamber 16 includes a damper 46 that changes the opening degree of the air outlet 47 through which the cold air generated in the refrigeration cooler chamber 36 blows, and heating means that heats the air in the temperature switching chamber 16. 60 is provided. The temperature switching chamber 16 controls the damper 46 and the heating means 60 together with the refrigeration cycle 41, so that the storage temperature (internal temperature) is a plurality of temperature zones, for example, a weak refrigeration temperature zone of −9 ° C. to −8 ° C. or lower, It can be changed to a partial temperature range of -4 ° C to -3 ° C and a chilled temperature range of 0 ° C to 1 ° C.

具体的には、温度切替室１６は、上面壁を構成する断熱仕切壁６と、下面壁を構成する断熱仕切壁２３と、左側壁を構成する断熱仕切壁２２と、右側壁を構成する断熱箱体２の右側壁２ａと、背面壁を構成するエバカバー５１で仕切られた空間である。温度切替室１６は、断熱仕切壁６、２２、２３、断熱箱体２の右側壁２ａ、及びエバカバー５１のいずれか１つの壁面（この例では、下面壁を構成する断熱仕切壁２３）に加熱手段６０が設けられ、その他の壁面（この例では、上面壁、左右側壁及び背面壁を構成する断熱仕切壁６、２２，断熱箱体２の右側壁２ａ及びエバカバー５１）の全てに蓄冷部材７０が設けられている。また、温度切替室１６の背面壁を構成するエバカバー５１には、吹出口４７とダンパ４６が設けられている。   Specifically, the temperature switching chamber 16 includes the heat insulating partition wall 6 that forms the upper surface wall, the heat insulating partition wall 23 that forms the lower surface wall, the heat insulating partition wall 22 that forms the left side wall, and the heat insulation that forms the right side wall. This is a space partitioned by the right side wall 2a of the box body 2 and an evaporative cover 51 constituting the back wall. The temperature switching chamber 16 heats any one wall surface of the heat insulating partition walls 6, 22, 23, the right side wall 2 a of the heat insulating box 2, and the evaporative cover 51 (in this example, the heat insulating partition wall 23 constituting the lower surface wall). Means 60 is provided, and all the other wall surfaces (in this example, the heat insulating partition walls 6 and 22, the right side wall 2a of the heat insulating box 2 and the evaporative cover 51 constituting the top wall, the left and right side walls, and the back wall 51) Is provided. Further, an air outlet 47 and a damper 46 are provided in the evaporation cover 51 that constitutes the back wall of the temperature switching chamber 16.

加熱手段６０は、温度切替室１６の下面壁を構成する断熱仕切壁２３の上側面に沿わせて設けられたアルミ箔ヒータ等のシート状のヒータからなり、温度切替室１６内の空気を下方から加熱する。   The heating means 60 is composed of a sheet-like heater such as an aluminum foil heater provided along the upper surface of the heat insulating partition wall 23 constituting the lower surface wall of the temperature switching chamber 16, and the air in the temperature switching chamber 16 is moved downward. Heat from.

蓄冷部材７０は、温度切替室１６の冷熱を蓄積するものであって、温度切替室１６の上面壁、左右側壁及び背面壁を構成する断熱仕切壁６、２２，断熱箱体２の右側壁２ａ及びエバカバー５１に沿わせて温度切替室１６へ向けて設けられている。各壁面に設けられた蓄冷部材７０は、形状や大きさが異なっているが基本的な構成が共通しており、融解潜熱の大きな混合物からなる蓄冷剤７２と、樹脂フォルムなどフィルム材で形成された袋状の容器７４とを備える。   The cold storage member 70 accumulates cold heat of the temperature switching chamber 16, and includes the heat insulating partition walls 6 and 22 that constitute the upper surface wall, the left and right side walls, and the rear wall of the temperature switching chamber 16, and the right side wall 2 a of the heat insulating box 2. And it is provided toward the temperature switching chamber 16 along the evaporation cover 51. The cold storage members 70 provided on the respective wall surfaces are different in shape and size, but have the same basic configuration, and are formed of a cold storage agent 72 made of a mixture having a large melting latent heat and a film material such as a resin form. And a bag-like container 74.

蓄冷剤７２は、水や無機塩や食品添加物等を混合した混合物からなり、これらの混合比率を調整して融点が、温度切替室１６において設定可能な温度帯のいずれか１つの温度帯より所定温度（例えば、１〜２℃）だけ低い温度に設定されている。この例では、温度切替室１６において設定可能な温度帯のうち最も高い温度帯であるチルド温度帯より所定温度だけ低い温度（例えば、−１℃）に蓄冷剤７２の融点が設定されている。   The regenerator 72 is composed of a mixture of water, inorganic salt, food additives, etc., and the melting point is adjusted from any one of the temperature zones settable in the temperature switching chamber 16 by adjusting the mixing ratio thereof. The temperature is set lower by a predetermined temperature (for example, 1 to 2 ° C.). In this example, the melting point of the regenerator 72 is set to a temperature (for example, −1 ° C.) lower by a predetermined temperature than the chilled temperature zone that is the highest temperature zone among the temperature zones that can be set in the temperature switching chamber 16.

袋状の容器７４は、内部に蓄冷剤７２を収容して温度切替室１６の各壁面に沿う略平板状に成形する。   The bag-like container 74 accommodates the cold storage agent 72 therein and is formed into a substantially flat plate shape along each wall surface of the temperature switching chamber 16.

断熱箱体２の背面上部には、冷蔵庫１の動作全般を制御する制御部２４が設けられている。制御部２４は、図５に示すように、操作パネル８、冷蔵温度センサ２５、冷凍温度センサ２６、切替室温度センサ２７などの各種センサ等から入力される信号や、ＥＥＰＲＯＭ等の不揮発性記録媒体からなるメモリ２８に記憶された制御プログラムに基づいて、冷蔵ファン３１、冷凍ファン３５、圧縮機３９、ダンパ４６、加熱手段６０などの各種電気部品を制御することで、各室を所定温度に冷却する。   A control unit 24 that controls the overall operation of the refrigerator 1 is provided at the upper back of the heat insulating box 2. As shown in FIG. 5, the control unit 24 is a non-volatile recording medium such as a signal input from various sensors such as the operation panel 8, the refrigeration temperature sensor 25, the refrigeration temperature sensor 26, the switching room temperature sensor 27, or the like. Each chamber is cooled to a predetermined temperature by controlling various electrical components such as the refrigeration fan 31, the refrigeration fan 35, the compressor 39, the damper 46, and the heating means 60 based on a control program stored in the memory 28. To do.

具体的には、冷蔵温度帯の冷蔵室１０及び野菜室１２を冷却する場合には、制御部２４が、冷凍サイクル４１に設けられた切替弁４２を切り替えて冷蔵冷却器３０に冷媒が流れるようにするとともに、冷蔵ファン３１を運転させる冷蔵モードを実行する。これにより、冷蔵冷却器３０で冷却された冷蔵冷却器室３２の空気が、ダクト３３を介して冷蔵室１０及び野菜室１２に送風され、冷蔵室１０の背面に設けられた冷蔵温度センサ２５の検出温度が所定温度範囲に収まるように冷蔵室１０及び野菜室１２を冷却する。   Specifically, when the refrigerator compartment 10 and the vegetable compartment 12 in the refrigerator temperature zone are cooled, the control unit 24 switches the switching valve 42 provided in the refrigeration cycle 41 so that the refrigerant flows into the refrigerator refrigerator 30. And the refrigeration mode for operating the refrigeration fan 31 is executed. Thereby, the air in the refrigeration cooler chamber 32 cooled by the refrigeration cooler 30 is blown to the refrigeration chamber 10 and the vegetable compartment 12 through the duct 33, and the refrigeration temperature sensor 25 provided on the back surface of the refrigeration chamber 10. The refrigerator compartment 10 and the vegetable compartment 12 are cooled so that the detected temperature falls within a predetermined temperature range.

製氷室１５及び冷凍室１７を冷却する場合には、制御部２４が、冷凍サイクル４１に設けられた切替弁４２を切り替えて冷媒が冷凍冷却器３４に流れるようにするとともに、冷凍ファン３５を運転させる冷凍モードを実行する。これにより、冷凍冷却器３４で冷却された空気は製氷室１５及び冷凍室１７に送風され、冷凍室１７の背面に設けられた冷凍温度センサ２６の検出温度が所定温度範囲に収まるように製氷室１５及び冷凍室１７を冷却する。   When cooling the ice making chamber 15 and the freezing chamber 17, the control unit 24 switches the switching valve 42 provided in the refrigeration cycle 41 so that the refrigerant flows to the refrigeration cooler 34 and operates the refrigeration fan 35. The refrigeration mode is executed. Thereby, the air cooled by the freezer cooler 34 is blown to the ice making chamber 15 and the freezing chamber 17 so that the temperature detected by the freezing temperature sensor 26 provided on the back surface of the freezing chamber 17 falls within a predetermined temperature range. 15 and the freezer compartment 17 are cooled.

温度切替室１６を冷却する場合には、上記の冷凍モードの実行中にダンパ４６の開度を制御して温度切替室１６へ供給する冷気量を調整しつつ、加熱手段６０の発熱量を制御することで、温度切替室１６の背面に設けられた切替室温度センサ２７の検出温度が設定された温度帯に収まるように温度切替室１６を冷却する。   When the temperature switching chamber 16 is cooled, the amount of cool air supplied to the temperature switching chamber 16 is adjusted by controlling the opening degree of the damper 46 during execution of the above-described refrigeration mode, and the amount of heat generated by the heating means 60 is controlled. As a result, the temperature switching chamber 16 is cooled so that the temperature detected by the switching chamber temperature sensor 27 provided on the back surface of the temperature switching chamber 16 falls within the set temperature range.

吹出口４７より温度切替室１６に導入された冷気は、温度切替室１６内部を冷却するとともに、温度切替室１６に設けられた蓄冷部材７０の蓄冷剤７２も冷却する。冷凍冷却器３４で生成される冷気は、蓄冷剤７２の融点よりも低い温度に冷却されているため、吹出口４７より冷気が導入されると蓄冷剤７２が凝固して冷熱を蓄熱する。一方、温度切替室１６の貯蔵温度が高くなると、蓄冷剤７２が蓄熱する冷熱を温度切替室１６に放出し冷却する。
なお、温度切替室１６を冷却する場合において、制御部２４は、冷凍モードの実行中以外にも必要に応じて加熱手段６０の発熱量を制御して温度切替室１６を加熱してもよい。 The cool air introduced into the temperature switching chamber 16 from the outlet 47 cools the inside of the temperature switching chamber 16 and also cools the cool storage agent 72 of the cool storage member 70 provided in the temperature switching chamber 16. Since the cold air generated by the refrigeration cooler 34 is cooled to a temperature lower than the melting point of the cold storage agent 72, when the cold air is introduced from the blowout port 47, the cold storage agent 72 is solidified to store cold heat. On the other hand, when the storage temperature of the temperature switching chamber 16 increases, the cold energy stored in the cold storage agent 72 is discharged into the temperature switching chamber 16 and cooled.
In the case of cooling the temperature switching chamber 16, the control unit 24 may heat the temperature switching chamber 16 by controlling the heat generation amount of the heating means 60 as necessary other than during the execution of the freezing mode.

このような本実施形態の冷蔵庫１では、温度切替室１６の空気を加熱する加熱手段６０と温度切替室１６の冷熱を蓄積する蓄冷部材７０とが温度切替室１６を構成する壁面に設けられているため、切り替え可能な温度帯を広い温度範囲にわたって設定することができるとともに、温度切替室１６の温度分布を均一に保ちつつ温度変動を抑えることができる。   In the refrigerator 1 of this embodiment, the heating means 60 that heats the air in the temperature switching chamber 16 and the cold storage member 70 that accumulates the cold energy in the temperature switching chamber 16 are provided on the wall surface that constitutes the temperature switching chamber 16. Therefore, the switchable temperature zone can be set over a wide temperature range, and temperature fluctuations can be suppressed while keeping the temperature distribution in the temperature switching chamber 16 uniform.

また、蓄冷部材７０は、温度切替室１６において加熱手段６０が設けられた壁面以外の壁面に設けられているため、加熱手段６０から発生した熱の影響を受けにくく、蓄冷部材７０と加熱手段６０との間で無駄な熱交換を防いで効率良く温度切替室１６を所定の温度帯に制御することができる。   In addition, since the cold storage member 70 is provided on the wall surface other than the wall surface on which the heating unit 60 is provided in the temperature switching chamber 16, the cold storage member 70 is hardly affected by the heat generated from the heating unit 60, and the cold storage member 70 and the heating unit 60. Therefore, it is possible to efficiently control the temperature switching chamber 16 to a predetermined temperature range while preventing wasteful heat exchange between the two.

しかも、本実施形態では、加熱手段６０が設けられた壁面以外の全ての壁面に蓄冷部材７０が設けられているため、温度切替室１６内部に多くの冷熱を蓄積することができ、より一層、温度切替室１６の温度分布を均一に保ちつつ温度変動を抑えることができる。   Moreover, in this embodiment, since the cold storage member 70 is provided on all the wall surfaces other than the wall surface provided with the heating means 60, a large amount of cold heat can be accumulated inside the temperature switching chamber 16, and more Temperature variation can be suppressed while keeping the temperature distribution in the temperature switching chamber 16 uniform.

また、本実施形態では、加熱手段６０が温度切替室１６の下面壁を構成する断熱仕切壁２３に温度切替室１６へ向けて設けられているため、加熱手段６０によって暖められた温度切替室１６内の空気が温度切替室１６内を自然対流しやすくなり、温度切替室１６の温度分布が均一化されやすくなる。   In the present embodiment, since the heating means 60 is provided on the heat insulating partition wall 23 constituting the lower surface wall of the temperature switching chamber 16 toward the temperature switching chamber 16, the temperature switching chamber 16 heated by the heating means 60. It becomes easy for natural air to convect the inside of the temperature switching chamber 16 inside, and the temperature distribution of the temperature switching chamber 16 becomes easy to become uniform.

また、本実施形態では、蓄冷部材７０に設けられた蓄冷剤７２の融点が、温度切替室１６において設定可能な温度帯のうち最も高い温度帯より所定温度だけ低い温度に設定されているため、複数の温度帯を切り替えて設定する場合に温度制御が困難となる高い温度帯の温度変動を抑えることができる。   In the present embodiment, the melting point of the cool storage agent 72 provided in the cool storage member 70 is set to a temperature that is lower by a predetermined temperature than the highest temperature zone among the temperature zones that can be set in the temperature switching chamber 16. When a plurality of temperature zones are switched and set, temperature fluctuations in a high temperature zone where temperature control becomes difficult can be suppressed.

なお、本実施形態では、温度切替室１６の下面壁を構成する断熱仕切壁２３に加熱手段６０を設ける場合について説明したが、上面壁を構成する断熱仕切壁６等、温度切替室１６を構成するいずれの壁面に加熱手段６０を設けてもよい。   In addition, although this embodiment demonstrated the case where the heating means 60 was provided in the heat insulation partition wall 23 which comprises the lower surface wall of the temperature switching chamber 16, the temperature switching chamber 16 is comprised including the heat insulation partition wall 6 etc. which comprise an upper surface wall. The heating means 60 may be provided on any wall surface.

また、本実施形態では、加熱手段６０を設けた壁面以外の全ての壁面に蓄冷部材７０を設けたが、加熱手段６０を設けた壁面以外の少なくとも１つの壁面に蓄冷部材７０を設ければよい。   Moreover, in this embodiment, although the cool storage member 70 was provided in all the wall surfaces other than the wall surface in which the heating means 60 was provided, the cool storage member 70 should just be provided in at least one wall surface other than the wall surface in which the heating means 60 was provided. .

また、温度切替室１６の壁面に設けた蓄冷部材７０は、全て同じ厚さであってもよいが、例えば、温度切替室１６の側方に設けられた貯蔵室（この例では製氷室１５）との間に仕切る断熱仕切壁２２に設ける蓄冷部材７０の厚みを他の蓄冷部材より厚く設けてもよい。   Further, the cold storage members 70 provided on the wall surface of the temperature switching chamber 16 may all have the same thickness. For example, a storage chamber provided in the side of the temperature switching chamber 16 (in this example, the ice making chamber 15). You may provide the thickness of the cool storage member 70 provided in the heat insulation partition wall 22 partitioned between between and thicker than other cool storage members.

（第２実施形形態）
第２実施形態について、主に図６を参照しながら、第１実施形態と異なる部分を中心に説明する。なお、第１実施形態と同一の構成のものについては同一の符号を付し、その構成の説明を省略する。 (Second embodiment)
The second embodiment will be described mainly with reference to FIG. 6 with a focus on differences from the first embodiment. In addition, the same code | symbol is attached | subjected about the thing of the same structure as 1st Embodiment, and description of the structure is abbreviate | omitted.

本実施形態では、上記した第１実施形態のように温度切替室１６を構成する壁面に蓄冷部材７０を設けるとともに、温度切替室１６の前面開口部を閉塞する扉１８の庫内側の壁面１８ａにも、蓄冷剤を袋状の容器に収納してなる蓄冷部材７０と同様構成の蓄冷部材１７０が設けられている。   In the present embodiment, the cold storage member 70 is provided on the wall surface constituting the temperature switching chamber 16 as in the first embodiment, and the inner wall surface 18a of the door 18 that closes the front opening of the temperature switching chamber 16 is provided. Also, a cold storage member 170 having the same configuration as the cold storage member 70 formed by storing the cold storage agent in a bag-like container is provided.

本実施形態では、温度切替室１６を構成する壁面に加え、扉１８にも蓄冷剤１７２を袋状の容器１７４に収納した蓄冷部材１７０を設けることで、温度切替室１６内部に多くの冷熱を蓄積することができ、温度切替室１６の温度分布を均一に保ちつつ温度変動を抑えることができる。   In the present embodiment, in addition to the wall surface constituting the temperature switching chamber 16, the door 18 is also provided with the cold storage member 170 in which the cold storage agent 172 is stored in the bag-like container 174, so that a large amount of cold heat is generated inside the temperature switching chamber 16. Accumulation can be performed, and temperature fluctuations can be suppressed while keeping the temperature distribution in the temperature switching chamber 16 uniform.

なお、その他の構成及び作用効果は上記した第１実施形態と同様であり、詳細な説明は省略する。   Other configurations and operational effects are the same as those of the first embodiment described above, and detailed description thereof is omitted.

（第３実施形形態）
第３実施形態について、主に図７を参照しながら、第１実施形態と異なる部分を中心に説明する。なお、第１実施形態と同一の構成のものについては同一の符号を付し、その構成の説明を省略する。 (Third embodiment)
The third embodiment will be described mainly with reference to FIG. 7 with a focus on differences from the first embodiment. In addition, the same code | symbol is attached | subjected about the thing of the same structure as 1st Embodiment, and description of the structure is abbreviate | omitted.

上記した第１及び第２実施形態では、温度切替室１６内に収納された貯蔵容器２０が、扉１８を閉扉した状態で温度切替室１６に設けられた蓄冷部材７０と離れていたが、本実施形態では、図７に示すような扉１８を閉扉した状態で、エバカバー５１に設けられた蓄冷部材２７０が貯蔵容器２０の後面に接触するようになっている。   In the first and second embodiments described above, the storage container 20 housed in the temperature switching chamber 16 is separated from the cold storage member 70 provided in the temperature switching chamber 16 with the door 18 closed. In the embodiment, the cold storage member 270 provided on the evaporation cover 51 is in contact with the rear surface of the storage container 20 with the door 18 as shown in FIG. 7 closed.

このような本実施形態では、蓄冷部材７０に蓄積された冷熱を効率的に貯蔵容器２０へ伝達することができ、貯蔵容器２０内を素早く設定された温度帯に冷却することができる。   In such this embodiment, the cold heat accumulated in the cold storage member 70 can be efficiently transmitted to the storage container 20, and the inside of the storage container 20 can be quickly cooled to a set temperature zone.

上記した実施形態では、エバカバー５１に設けられた蓄冷部材２７０が貯蔵容器２０の後面に接触する場合について説明したが、本発明はこれに限定されず、エバカバー５１以外の壁面に設けられた蓄冷部材が貯蔵容器２０に接触してもよい。   In the above-described embodiment, the case where the cold storage member 270 provided on the evaporation cover 51 is in contact with the rear surface of the storage container 20 has been described, but the present invention is not limited to this, and the cold storage member provided on the wall surface other than the evaporation cover 51. May contact the storage container 20.

なお、その他の構成及び作用効果は上記した第１実施形態と同様であり、詳細な説明は省略する。   Other configurations and operational effects are the same as those of the first embodiment described above, and detailed description thereof is omitted.

（第４実施形形態）
第４実施形態について、主に図８を参照しながら、第１実施形態と異なる部分を中心に説明する。なお、第１実施形態と同一の構成のものについては同一の符号を付し、その構成の説明を省略する。 (Fourth embodiment)
The fourth embodiment will be described mainly with reference to FIG. 8 with a focus on differences from the first embodiment. In addition, the same code | symbol is attached | subjected about the thing of the same structure as 1st Embodiment, and description of the structure is abbreviate | omitted.

上記した第１〜第３実施形態では、温度切替室１６の壁面に設けられた蓄冷部材７０が、１種類の蓄冷剤７２から構成されている場合について説明したが、本実施形態では、図８に示すように、蓄冷部材３７０が融点の異なる複数種類の蓄冷剤３７２ａ、３７２ｂ、３７２ｃを有している。   In the first to third embodiments described above, the case where the cold storage member 70 provided on the wall surface of the temperature switching chamber 16 is composed of one type of cold storage agent 72 has been described. In the present embodiment, FIG. As shown in FIG. 4, the regenerator member 370 has a plurality of types of regenerators 372a, 372b, and 372c having different melting points.

具体的には、蓄冷部材３７０は、温度切替室１６が設定可能な温度帯毎に、それぞれの温度帯に対応する融点を有する蓄冷剤３７２ａ、３７２ｂ、３７２ｃが設けられている。   Specifically, the cold storage member 370 is provided with cold storage agents 372a, 372b, and 372c having melting points corresponding to the respective temperature zones for each temperature zone in which the temperature switching chamber 16 can be set.

蓄冷剤３７２ａの融点は、温度切替室１６において設定可能な温度帯のうち最も高い温度帯であるチルド温度帯より所定温度だけ低い温度（例えば、−１℃）に設定され、蓄冷剤３７２ｂの融点は、２番目に高い温度帯であるパーシャル温度帯より所定温度だけ低い温度（例えば、−５℃）に設定され、蓄冷剤３７２ｃの融点は、最も低い温度帯である弱冷凍温度帯より所定温度だけ低い温度（例えば、−１０℃）に設定されている。   The melting point of the cool storage agent 372a is set to a temperature (for example, −1 ° C.) lower than the chilled temperature zone that is the highest temperature zone among the temperature zones that can be set in the temperature switching chamber 16, and the melting point of the cold storage agent 372b. Is set to a temperature (for example, −5 ° C.) lower than the partial temperature range, which is the second highest temperature range, by a predetermined temperature, and the melting point of the regenerator 372c is a predetermined temperature than the weak freezing temperature range, which is the lowest temperature range. Is set to a low temperature (for example, −10 ° C.).

本実施形態の好ましい態様として、３種類の蓄冷剤３７２ａ、３７２ｂ、３７２ｃは、樹脂フォルムなどフィルム材で形成された袋状の内容器３７６ａ、３７６ｂ、３７６ｃに別個に収納され略平板状に成形されている。略平板状に成形された３種類の蓄冷剤３７２ａ、３７２ｂ、３７２ｃは、温度切替室１６を構成する壁面から温度切替室１６の内方に行くにしたがって融点が漸次高くなるように、つまり、壁面側から順に、蓄冷剤３７２ｃ、蓄冷剤３７２ｂ、蓄冷剤３７２ａの順序で厚み方向に重ねられ、この状態で樹脂フォルムなどのフィルム材で形成された袋状の容器３７４に収納されている。   As a preferred aspect of the present embodiment, the three types of cold storage agents 372a, 372b, and 372c are separately stored in bag-like inner containers 376a, 376b, and 376c formed of a film material such as a resin form and are formed into a substantially flat plate shape. ing. The three types of cold storage agents 372a, 372b, and 372c formed in a substantially flat plate shape have melting points that gradually increase from the wall surface constituting the temperature switching chamber 16 toward the inside of the temperature switching chamber 16, that is, the wall surface From the side, the cold storage agent 372c, the cold storage agent 372b, and the cold storage agent 372a are stacked in the thickness direction in this order, and in this state, are stored in a bag-like container 374 formed of a film material such as a resin form.

本実施形態では、蓄冷部材２７０が融点の異なる複数種類の蓄冷剤３７２ａ、３７２ｂ、３７２ｃを有しているため、温度切替室１６が設定可能な温度帯に対応する融点を有する蓄冷剤３７２ａ、３７２ｂ、３７２ｃを設けることができる。そのため、温度切替室１６をいずれの温度帯に設定しても、温度切替室１６の内部温度が設定した温度帯より高くなると、その温度帯に対応する融点を有する蓄冷剤が融解し、そのときに生じる潜熱によって温度切替室１６を冷却することができるとともに、温度切替室１６の内部温度が設定した温度帯より低くなると、その温度帯に対応する融点を有する蓄冷剤が温度切替室１６から吸熱し、温度切替室１６の過冷却を抑えることができる。   In the present embodiment, since the cold storage member 270 includes a plurality of types of cold storage agents 372a, 372b, and 372c having different melting points, the cold storage agents 372a and 372b having melting points corresponding to the temperature zones in which the temperature switching chamber 16 can be set. 372c can be provided. Therefore, even if the temperature switching chamber 16 is set to any temperature zone, when the internal temperature of the temperature switching chamber 16 becomes higher than the set temperature zone, the regenerator having the melting point corresponding to the temperature zone melts, The temperature switching chamber 16 can be cooled by the latent heat generated at the time, and when the internal temperature of the temperature switching chamber 16 becomes lower than the set temperature zone, the regenerator having a melting point corresponding to the temperature zone absorbs heat from the temperature switching chamber 16. In addition, overcooling of the temperature switching chamber 16 can be suppressed.

また、本実施形態では、複数種類の蓄冷剤３７２ａ、３７２ｂ、３７２ｃが厚み方向に重ねて設けられているため、温度切替室１６の壁面上で位置をずらして複数種類の蓄冷剤３７２ａ、３７２ｂ、３７２ｃを配置する場合に比べて、温度切替室１６の温度分布を均一化することができる。   In the present embodiment, since a plurality of types of cool storage agents 372a, 372b, and 372c are provided in the thickness direction, the plurality of types of cool storage agents 372a, 372b, Compared with the case where 372c is arranged, the temperature distribution of the temperature switching chamber 16 can be made uniform.

また、本実施形態では、温度切替室１６の壁面から温度切替室１６の内方に行くにしたがって融点が漸次高くなるように複数種類の蓄冷剤３７２ａ、３７２ｂ、３７２ｃを配置しており、温度切替室１６側に位置する蓄冷剤が先に融解することがないため、壁面側に位置する蓄冷剤の冷熱が温度切替室１６へ伝達するのを、既に融解した蓄冷剤よって妨げられることがない。そのため、温度切替室１６をいずれの温度帯に設定しても対応する蓄冷剤３７２ａ、３７２ｂ、３７２ｃの潜熱を効率的に利用して設定した温度帯に冷却することができる。   In the present embodiment, a plurality of types of cold storage agents 372a, 372b, and 372c are arranged so that the melting point gradually increases from the wall surface of the temperature switching chamber 16 to the inside of the temperature switching chamber 16, and the temperature switching Since the cool storage agent located on the chamber 16 side does not melt first, the cool heat of the cool storage agent located on the wall surface side is not prevented from being transmitted to the temperature switching chamber 16 by the already melted cool storage agent. Therefore, even if the temperature switching chamber 16 is set to any temperature zone, it can be cooled to the temperature zone set by efficiently using the latent heat of the corresponding cold storage agents 372a, 372b, 372c.

しかも、本実施形態では、複数の温度帯を切り替えて設定する場合に温度制御が困難となる高い温度帯に対応する蓄冷剤３７２ａを貯蔵容器２０に近接させて配置しているため、高い温度帯の温度変動を効果的に抑えることができる。   In addition, in the present embodiment, the cold storage agent 372a corresponding to the high temperature range in which the temperature control becomes difficult when the plurality of temperature zones are switched and set is arranged close to the storage container 20, and thus the high temperature range Can be effectively suppressed.

なお、本実施形態では、蓄冷部材７０を構成する複数種類の蓄冷剤３７２ａ、３７２ｂ、３７２ｃをいずれも同じ体積に設けもよいが、好ましい態様として、最も高い温度帯に対応する蓄冷剤２７２ａの体積を他の蓄冷剤より大きく設定することができる。このように、最も高い温度帯に対応する蓄冷剤３７２ａの体積を大きくすることで、温度制御が困難となる高い温度帯の温度変動をより一層抑えやすくなる。   In the present embodiment, the plurality of types of cool storage agents 372a, 372b, and 372c constituting the cool storage member 70 may all be provided in the same volume, but as a preferred mode, the volume of the cool storage agent 272a corresponding to the highest temperature zone. Can be set larger than other cold storage agents. Thus, by increasing the volume of the regenerator 372a corresponding to the highest temperature range, it becomes easier to suppress temperature fluctuations in the high temperature range where temperature control becomes difficult.

なお、その他の構成及び作用効果は上記した第１実施形態と同様であり、詳細な説明は省略する。
（第５実施形形態）
第５実施形態について、主に図９を参照しながら、第１実施形態と異なる部分を中心に説明する。なお、第１実施形態と同一の構成のものについては同一の符号を付し、その構成の説明を省略する。 Other configurations and operational effects are the same as those of the first embodiment described above, and detailed description thereof is omitted.
(Fifth embodiment)
The fifth embodiment will be described mainly with reference to FIG. 9 with a focus on differences from the first embodiment. In addition, the same code | symbol is attached | subjected about the thing of the same structure as 1st Embodiment, and description of the structure is abbreviate | omitted.

図９に示すように、本実施形態では、蓄冷部材４７０が蓄冷剤４７２を収納する容器７４に接触させ熱交換可能に設けられた伝熱部４７６を備える。   As shown in FIG. 9, in this embodiment, the cool storage member 470 is provided with the heat transfer part 476 provided in contact with the container 74 which stores the cool storage agent 472 so that heat exchange is possible.

伝熱部４７６は、容器４７４より熱伝導率の高い材料（例えば、アルミニウム板等の金属板）で形成されたフィン状の部材であり、蓄冷剤７２を収容して略平板状に成形された容器７４から温度切替室１６の内方へ向けて突出するように設けられている。   The heat transfer part 476 is a fin-like member formed of a material having a higher thermal conductivity than the container 474 (for example, a metal plate such as an aluminum plate), and accommodates the cold storage agent 72 and is formed into a substantially flat plate shape. It is provided so as to protrude from the container 74 toward the inside of the temperature switching chamber 16.

温度切替室１６の上面壁及び左右側壁を構成する断熱仕切壁６，２２及び断熱箱体２の右側壁２ａに設けられた蓄冷部材４７０の伝熱部４７６は、冷蔵庫１の前後方向に沿って延びる複数の金属板が間隔を開けて設けられている。   The heat transfer partitions 476 of the cold storage member 470 provided on the heat insulating partition walls 6, 22 constituting the upper surface wall and the left and right side walls of the temperature switching chamber 16 and the right side wall 2 a of the heat insulating box 2 extend along the front-rear direction of the refrigerator 1. A plurality of extending metal plates are provided at intervals.

このような本実施形態では、熱伝導率の高い材料で形成され伝熱部４７６が容器４７４と熱交換可能に設けられているため、吹出口４７から温度切替室１６に導入された冷気が、伝熱部４７６と接触して効率的に蓄冷部材４７０を冷却することとができる。   In this embodiment, since the heat transfer part 476 is formed of a material having high thermal conductivity so as to be able to exchange heat with the container 474, the cold air introduced from the outlet 47 into the temperature switching chamber 16 is The cold storage member 470 can be efficiently cooled in contact with the heat transfer unit 476.

本実施形態の好ましい態様として、伝熱部４７６が、温度切替室１６に収納された貯蔵容器２０の左右側面２０ａ，２０ｂに接触したり、容器の２０の後面に接触してもよい。このような場合、蓄冷部材７０に蓄積された冷熱を効率的に貯蔵容器２０へ伝達することができ、貯蔵容器２０内を素早く設定された温度帯に冷却することができる。   As a preferable aspect of the present embodiment, the heat transfer unit 476 may contact the left and right side surfaces 20a and 20b of the storage container 20 housed in the temperature switching chamber 16, or may contact the rear surface of the container 20. In such a case, the cold heat accumulated in the cold storage member 70 can be efficiently transmitted to the storage container 20, and the inside of the storage container 20 can be quickly cooled to a set temperature zone.

なお、その他の構成及び作用効果は上記した第１実施形態と同様であり、詳細な説明は省略する。   Other configurations and operational effects are the same as those of the first embodiment described above, and detailed description thereof is omitted.

（他の実施形態）
以上、本発明の実施形態を説明したが、これらの実施形態は例として提示したものであり、発明の範囲を限定することを意図していない。これらの実施形態は、その他の様々な形態で実施されることが可能であり、発明の趣旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これらの実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 (Other embodiments)
As mentioned above, although embodiment of this invention was described, these embodiment was shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

１…冷蔵庫、２…断熱箱体、３…外箱、４…内箱、５…断熱空間、６…断熱仕切壁（上面壁）、７…仕切壁、８…操作パネル、１０…冷蔵室、１１…冷蔵室扉、１２…野菜室、１３…野菜室扉、１４…貯蔵容器、１５…製氷室、１６…温度切替室、１７…冷凍室、１８…扉、２０…貯蔵容器、２０ａ…左右側面、２２…断熱仕切壁（左側壁）、２３…断熱仕切壁（下面壁）、３０…冷蔵冷却器、３２…冷蔵冷却器室、３４…冷凍冷却器、３５…冷凍ファン、３６…冷凍冷却器室、４６…ダンパ、４７…吹出口、５１…エバカバー（背面壁）、６０…加熱手段、７０…蓄冷部材、７２…蓄冷剤、７４…容器 DESCRIPTION OF SYMBOLS 1 ... Refrigerator, 2 ... Thermal insulation box body, 3 ... Outer box, 4 ... Inner box, 5 ... Thermal insulation space, 6 ... Thermal insulation partition wall (upper surface wall), 7 ... Partition wall, 8 ... Operation panel, 10 ... Cold room, DESCRIPTION OF SYMBOLS 11 ... Cold room door, 12 ... Vegetable room, 13 ... Vegetable room door, 14 ... Storage container, 15 ... Ice making room, 16 ... Temperature switching room, 17 ... Freezer room, 18 ... Door, 20 ... Storage container, 20a ... Left and right Side surface, 22 ... heat insulation partition wall (left side wall), 23 ... heat insulation partition wall (bottom wall), 30 ... refrigeration cooler, 32 ... refrigeration cooler room, 34 ... refrigeration cooler, 35 ... refrigeration fan, 36 ... refrigeration cooling The chamber, 46 ... damper, 47 ... outlet, 51 ... Eve cover (back wall), 60 ... heating means, 70 ... cool storage member, 72 ... cool storage agent, 74 ... container

Claims (9)

上面壁、下面壁、左側壁、右側壁、及び背面壁で仕切られ前面が開口する貯蔵室を有する断熱箱体と、前記貯蔵室の前面を閉塞する扉と、前記貯蔵室に供給する冷気を生成する冷却器と、を備えた冷蔵庫において、
前記貯蔵室は、前記上面壁、前記下面壁、前記左側壁、前記右側壁、及び前記背面壁のいずれか１つの壁面に設けられた加熱手段と、前記加熱手段が設けられた壁面以外の壁面に設けられた蓄冷部材とを備える冷蔵庫。 A heat insulating box having a storage chamber partitioned by an upper surface wall, a lower wall, a left side wall, a right side wall, and a rear wall and having a front surface open; a door that closes the front surface of the storage chamber; and cold air supplied to the storage chamber A refrigerator comprising:
The storage chamber includes heating means provided on any one of the upper wall, the lower wall, the left side wall, the right side wall, and the back wall, and wall surfaces other than the wall surface provided with the heating unit. A refrigerator provided with a cold storage member provided in the interior. 前記蓄冷部材は、前記貯蔵室において前記加熱手段が設けられた壁面以外の全ての壁面に設けられている請求項１に記載の冷蔵庫。   The refrigerator according to claim 1, wherein the cold storage member is provided on all wall surfaces other than the wall surface provided with the heating means in the storage chamber. 前記扉の庫内側の壁面に蓄冷部材が設けられている請求項１又は２に記載の冷蔵庫。   The refrigerator of Claim 1 or 2 with which the cool storage member is provided in the wall surface inside the store | warehouse | chamber of the said door. 前記貯蔵室内に収納され、前記蓄冷部材と接触する貯蔵容器を備える請求項１〜３のいずれか１項に記載の冷蔵庫。   The refrigerator of any one of Claims 1-3 provided with the storage container accommodated in the said storage chamber and contacting the said cool storage member. 前記蓄冷部材は、融点の異なる複数種類の蓄冷剤を備える請求項１〜４のいずれか１項に記載の冷蔵庫   The refrigerator according to any one of claims 1 to 4, wherein the cold storage member includes a plurality of types of cold storage agents having different melting points. 前記蓄冷部材は、融点の異なる複数種類の前記蓄冷剤が厚み方向に重ねて設けられている請求項５に記載の冷蔵庫。   The refrigerator according to claim 5, wherein the cold storage member is provided with a plurality of types of cold storage agents having different melting points being stacked in the thickness direction. 前記蓄冷部材は、壁面から前記貯蔵室内方に行くにしたがって前記蓄冷剤の融点が漸次高くなるように複数種類の前記蓄冷剤が厚み方向に重ねて設けられている請求項６に記載の冷蔵庫。   The refrigerator according to claim 6, wherein the cold storage member is provided with a plurality of types of cold storage agents stacked in a thickness direction so that a melting point of the cold storage agent gradually increases from a wall surface toward the storage chamber. 複数種類の前記蓄冷剤のうち最も融点の高い蓄冷剤の体積が、他の蓄冷材より大きい請求項５〜７のいずれか１項に記載の冷蔵庫。   The refrigerator according to any one of claims 5 to 7, wherein a volume of the cool storage agent having the highest melting point among the plurality of types of cool storage agents is larger than that of other cool storage materials. 前記蓄冷部材は、蓄冷剤と、前記蓄冷剤を収容する容器と、前記容器より熱伝導率の高い材料からなり前記容器に接触させて設けられた伝熱部とを備える請求項１〜８のいずれか１項に記載の冷蔵庫。   The said cool storage member is provided with the cool storage agent, the container which accommodates the said cool storage agent, and the heat-transfer part which consists of a material with higher heat conductivity than the said container, and was provided in contact with the said container. The refrigerator of any one.

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