JP6359297B2

JP6359297B2 - refrigerator

Info

Publication number: JP6359297B2
Application number: JP2014045305A
Authority: JP
Inventors: 揚劉
Original assignee: Toshiba Lifestyle Products and Services Corp
Current assignee: Toshiba Lifestyle Products and Services Corp
Priority date: 2014-03-07
Filing date: 2014-03-07
Publication date: 2018-07-18
Anticipated expiration: 2034-03-07
Also published as: JP2015169392A

Description

本実施形態は、冷蔵庫に関する。 This embodiment relates to a refrigerator.

冷蔵庫では、冷蔵室や野菜室などのように内部温度が冷蔵温度に冷却される冷蔵貯蔵空間と、冷凍室や製氷室などのように内部温度が冷凍温度に冷却される冷凍貯蔵空間とが設けられ、冷凍貯蔵空間の内部には、上下に複数段の収納容器が配置されていることがある。 A refrigerator has a refrigerated storage space in which the internal temperature is cooled to the refrigeration temperature, such as a refrigerated room or a vegetable room, and a refrigerated storage space in which the internal temperature is cooled to the refrigeration temperature, such as a freezer room or an ice making room. In some cases, a plurality of storage containers are arranged in the upper and lower sides inside the frozen storage space.

このような冷蔵庫では、冷却器で冷却された空気が背面に設けられた吹出口から冷凍貯蔵空間へ吹き出して収納容器の内部や外部に導入される。収納容器の内部に導入された冷気は、収納容器内を流れて冷却した後、収納容器に設けられた通気口から収納容器の外部へ流出し、吹出口から収納容器の外部へ導入された冷気と合流し、収納容器と貯蔵空間の隙間を流れて貯蔵空間の背面に設けられた吸込口に吸い込まれて再び冷却器に戻り冷却される（例えば、下記特許文献１参照）。 In such a refrigerator, the air cooled by the cooler is blown out from the outlet provided on the back surface to the refrigerated storage space and introduced into the inside or outside of the storage container. The cool air introduced into the storage container flows through the storage container and cools, then flows out of the storage container from the vent provided in the storage container, and is introduced into the storage container from the outlet. , Flows through the gap between the storage container and the storage space, is sucked into a suction port provided on the back surface of the storage space, and returns to the cooler to be cooled again (for example, see Patent Document 1 below).

しかしながら、上記の冷蔵庫では、冷凍貯蔵空間へ吹き出した冷気が、収納容器内部に比べて庫外からの熱の影響を受けやすい収納容器と貯蔵空間の隙間を通ってから冷却器に戻るため、冷却効率が低下する問題がある。 However, in the refrigerator described above, the cold air blown into the frozen storage space returns to the cooler after passing through the gap between the storage container and the storage space, which is more susceptible to heat from outside the storage container than inside the storage container. There is a problem that efficiency decreases.

特開２００６−２７５２９７号JP 2006-275297 A

本発明は、上記事情を考慮してなされたものであり、貯蔵空間内に上下に複数段の収納容器が配設された冷蔵庫において、効率的な冷却を実現する冷蔵庫を提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a refrigerator that realizes efficient cooling in a refrigerator in which a plurality of storage containers are arranged vertically in a storage space. To do.

本実施形態の冷蔵庫は、貯蔵空間と、前記貯蔵空間内に上下に配設された複数の収納容器と、空気を冷却する冷却器と、前記冷却器が配設された冷却器室と、前記冷却器で冷却された空気が前記冷却器室から前記貯蔵空間へ吹き出される吹出口と、前記貯蔵空間の空気が前記冷却器室へ戻る吸込口と、を備え、前記貯蔵空間に設けられた前記吸込口及び吹出口が、最下段の収納容器の後面に設けられた後方開口部の後方に配置され、前記吸込口が下方に開口し、前記吹出口が前方に開口し、前記吸込口が、前記後方開口部から最下段の収納容器内の空気を吸い込むものである。
The refrigerator according to the present embodiment includes a storage space, a plurality of storage containers disposed vertically in the storage space, a cooler that cools air, a cooler chamber in which the cooler is disposed, An air outlet through which air cooled by a cooler is blown out from the cooler chamber to the storage space; and a suction port from which air in the storage space returns to the cooler chamber; provided in the storage space said inlet and outlet is disposed rearwardly of the rear opening provided on the rear surface of the lowermost container, the suction port is opened downward, the air outlet is opened to the front, the suction port The air in the lowermost storage container is sucked from the rear opening .

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. 図１の冷蔵庫の収納容器の斜視図である。It is a perspective view of the storage container of the refrigerator 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の要部拡大断面図である。It is a principal part expanded sectional view of FIG. 図４のＡ−Ａ断面図である。It is AA sectional drawing of FIG.

以下、図面に基づいて本発明の第１実施形態について説明する。 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

本実施形態に係る冷蔵庫１０は、図１に示すように、鋼板からなる外箱１２と貯蔵空間を形成する内箱１４との間に断熱空間１３を設けたキャビネット１６を備える。 As shown in FIG. 1, the refrigerator 10 according to the present embodiment includes a cabinet 16 provided with a heat insulating space 13 between an outer box 12 made of a steel plate and an inner box 14 forming a storage space.

内箱１４の内方に形成された貯蔵空間は、断熱仕切壁１７によって上方の冷蔵貯蔵空間２０と下方の冷凍貯蔵空間４０とに区画されている。 The storage space formed inside the inner box 14 is partitioned into an upper refrigerated storage space 20 and a lower refrigerated storage space 40 by a heat insulating partition wall 17.

冷蔵貯蔵空間２０は、冷蔵温度（例えば、２〜３℃）に冷却される空間であって、内部がさらに仕切壁２１によって上下に区画され、仕切壁２１の上方に複数段の載置棚を設けた冷蔵室２２が設けられ、仕切壁２１の下方に野菜室２４が設けられている。 The refrigerated storage space 20 is a space that is cooled to a refrigeration temperature (for example, 2 to 3 ° C.), and the interior is further partitioned vertically by a partition wall 21. The provided refrigerator compartment 22 is provided, and the vegetable compartment 24 is provided below the partition wall 21.

冷蔵室２２の開口部は、キャビネット１６の一側部の上下に設けられたヒンジにより回動自在に枢支された冷蔵室扉２３により閉塞されている。野菜室２４の開口部は、引き出し式の扉２５により閉塞されている。扉２５の裏面側に固着した左右一対の支持枠には、収納容器２６が保持され、扉２５の開扉動作とともに庫外に引き出されるように構成されている。 The opening of the refrigerating room 22 is closed by a refrigerating room door 23 pivotally supported by hinges provided on the upper and lower sides of one side of the cabinet 16. The opening of the vegetable compartment 24 is closed by a drawer type door 25. The pair of left and right support frames fixed to the rear surface side of the door 25 holds the storage container 26 and is configured to be pulled out of the cabinet as the door 25 is opened.

断熱仕切壁１７を介して野菜室２４の下方に配置した冷凍貯蔵空間４０は、冷凍温度（例えば、−１８℃以下）に冷却される空間であって、自動製氷機を備えた製氷室４２と小型冷凍室４６とが左右に併設され、その下方に仕切壁４９を介して冷凍室５０が設けられている。製氷室４２、小型冷凍室４６及び冷凍室５０の開口部は、引き出し式の扉４７，５１により閉塞されている。 A frozen storage space 40 disposed below the vegetable compartment 24 via the heat insulating partition wall 17 is a space cooled to a freezing temperature (for example, −18 ° C. or lower), and an ice making room 42 equipped with an automatic ice making machine, Small freezer compartments 46 are provided on the left and right, and a freezer compartment 50 is provided below them via a partition wall 49. Openings of the ice making chamber 42, the small freezer 46 and the freezer 50 are closed by drawer type doors 47 and 51.

なお、本実施形態では、製氷室４２、小型冷凍室４６及び冷凍室５０は、それぞれ異なる扉によって前面開口部が閉塞されているが、内部において断熱材で仕切られることなく繋がった一続きの冷凍貯蔵空間４０を形成している。 In the present embodiment, the ice making chamber 42, the small freezing chamber 46, and the freezing chamber 50 have their front openings closed by different doors, but are connected to each other without being partitioned by a heat insulating material. A storage space 40 is formed.

製氷室４２及び小型冷凍室４６の前面開口部を閉塞する扉４７の裏面側には、収納容器４４，４８を保持する左右一対の支持枠が固定され、開扉動作とともに収納容器４４、４８が庫外へ引き出されるように構成されている。製氷室４２及び小型冷凍室４６に設けられた収納容器４４、４８は、その前側下部、例えば、収納容器４４、４８の前壁下部から底面前部にかけて貫通孔４４ａ、４８ａが複数穿設されている。 A pair of left and right support frames that hold the storage containers 44 and 48 are fixed to the back surface side of the door 47 that closes the front opening portions of the ice making chamber 42 and the small freezer compartment 46. It is configured to be pulled out of the cabinet. The storage containers 44, 48 provided in the ice making chamber 42 and the small freezing chamber 46 have a plurality of through holes 44 a, 48 a extending from the front lower part thereof, for example, from the front wall lower part of the storage containers 44, 48 to the bottom front part. Yes.

冷凍室５０の前面開口部を閉塞する扉５１の裏面側にも、製氷室４２や小型冷凍室４６と同様、収納容器５２を保持する左右一対の支持枠が固定され、開扉動作とともに収納容器５２が庫外へ引き出されるように構成されている。 A pair of left and right support frames for holding the storage container 52 are also fixed to the back side of the door 51 that closes the front opening of the freezer room 50, as with the ice making room 42 and the small freezer room 46. 52 is pulled out of the cabinet.

冷凍室５０の内部に配設される収納容器５２は、図２及び図４に示すように、下側収納容器５３と、下側収納容器５３の上方に設けられた上側収納容器５４とを備え、上下２段に重なり合う構造をなしている。つまり、冷凍貯蔵空間４０内には、左右に並べて配置された製氷室４２の収納容器４４と小型冷凍室４６の収納容器４８の下方に、冷凍室５０に設けられた上下２段の収納容器５３，５４が配置されている。 As shown in FIGS. 2 and 4, the storage container 52 disposed inside the freezer compartment 50 includes a lower storage container 53 and an upper storage container 54 provided above the lower storage container 53. , The upper and lower two stages are overlapped. In other words, in the frozen storage space 40, two upper and lower storage containers 53 provided in the freezer compartment 50 are provided below the storage container 44 of the ice making chamber 42 and the storage container 48 of the small freezer compartment 46 arranged side by side. , 54 are arranged.

下側収納容器５３及び上側収納容器５４は、前方壁、後方壁、左右側壁によって囲まれた上方に開口する有底のボックス状をなしており、上側収納容器５４に比べて下側収納容器５３の収容深さが深く設けられている。 The lower storage container 53 and the upper storage container 54 have a bottomed box shape that opens upward and is surrounded by the front wall, the rear wall, and the left and right side walls, and is lower than the upper storage container 54. The accommodation depth is deep.

上側収納容器５４は、透明樹脂材で成形され上側収納容器５４を通して下側収納容器５３の内部が上方より目視できるように構成されている。上側収納容器５４は、冷凍室５０の左右の側壁面に形成されたレール５０ａ上を前後方向に摺動することで、下側収納容器５３と独立して庫外へ引き出される。上側収納容器５４の前側下部、例えば、上側収納容器５４の前壁下部から底面前部にかけて貫通孔５４ｂが複数穿設されている。 The upper storage container 54 is formed of a transparent resin material so that the inside of the lower storage container 53 can be seen from above through the upper storage container 54. The upper storage container 54 is pulled out of the storage independently of the lower storage container 53 by sliding in the front-rear direction on rails 50 a formed on the left and right side wall surfaces of the freezer compartment 50. A plurality of through holes 54b are formed from the front lower portion of the upper storage container 54, for example, from the front wall lower portion of the upper storage container 54 to the front bottom portion.

下側収納容器５３は、冷凍室扉５１の裏面側に固着された支持枠５５に支持され、該扉５１の開扉動作とともに庫外に引き出される。下側収納容器５３の後面を構成する後方壁５３ａは、幅方向中央部に上端から下方へ凹んだ後方開口部５３ｂが設けられており、上方に配置された上側収納容器５４の底部５４ａが後方開口部５３ｂの上部を閉塞し区画している。 The lower storage container 53 is supported by a support frame 55 fixed to the back surface side of the freezer compartment door 51, and is pulled out of the cabinet together with the door 51 opening operation. The rear wall 53a that constitutes the rear surface of the lower storage container 53 is provided with a rear opening 53b that is recessed downward from the upper end at the center in the width direction, and the bottom 54a of the upper storage container 54 that is disposed above the rear wall 53a. The upper part of the opening 53b is closed and partitioned.

なお、後方開口部５３ｂの形状は上端から下方へ凹んだ形状に限られず、スリット状の開口を横方向に複数並べた形状や、下側収納容器５３の横方向を長手方向とする一つの楕円形状の穴など、冷気が通過できる形状であればよい。 Note that the shape of the rear opening 53b is not limited to a shape recessed downward from the upper end, but a shape in which a plurality of slit-shaped openings are arranged in the horizontal direction, or one ellipse having the horizontal direction of the lower storage container 53 as the longitudinal direction. Any shape that allows cold air to pass through, such as a shape hole, may be used.

また、後方壁５３ａは垂直方向に立ち上がる平板形状としているが、機械室１９の形状に沿って傾斜させる、あるいは後方壁５３ａの下方領域に比べて上方領域を機械室１９に近づく方向に膨出させた形状とするなどして、下側収納容器５３の収納容積を拡大しても良い。 The rear wall 53a has a flat plate shape that rises in the vertical direction. However, the rear wall 53a is inclined along the shape of the machine chamber 19, or the upper region is bulged in a direction closer to the machine chamber 19 than the lower region of the rear wall 53a. For example, the storage volume of the lower storage container 53 may be increased by using a different shape.

冷蔵貯蔵空間２０の後部には、冷蔵用冷却室２８が設けられている。冷蔵用冷却室２８には、冷蔵貯蔵空間２０内の空気を冷却する冷蔵用冷却器６２と冷蔵用冷却器６２で冷却された冷気を冷蔵室２２及び野菜室２４へ送風する冷蔵用送風ファン６３とが収納されている。 A refrigerated cooling chamber 28 is provided at the rear of the refrigerated storage space 20. The refrigerating cooling chamber 28 includes a refrigerating cooler 62 that cools the air in the refrigerating storage space 20, and a refrigerating blower fan 63 that blows the cold air cooled by the refrigerating cooler 62 to the refrigerating chamber 22 and the vegetable compartment 24. And are stored.

また、冷凍貯蔵空間４０の後部には、冷凍用冷却室７１が設けられている。冷凍用冷却室７１には、冷凍貯蔵空間４０内の空気を冷却する冷凍用冷却器６４と冷凍用冷却器６４で冷却された冷気を製氷室４２と小型冷凍室４６と冷凍室５０へ送風する冷凍用送風ファン６５とが収納されている。 Further, a refrigeration cooling chamber 71 is provided at the rear of the frozen storage space 40. In the freezing cooling chamber 71, the freezing cooler 64 that cools the air in the freezing storage space 40, and the cold air cooled by the freezing cooling device 64 is sent to the ice making chamber 42, the small freezing chamber 46, and the freezing chamber 50. A refrigeration blower fan 65 is accommodated.

冷蔵用冷却器６２及び冷凍用冷却器６４は、キャビネット１６の背面下部に設けられた機械室１９内に収納された圧縮機６１や凝縮器６６とともに冷凍サイクル６０を構成する。なお、機械室19内に配した圧縮機６１の運転や凝縮器６６などの放熱作用により、機械室１９内の温度は冷蔵庫１０の貯蔵空間に比べて高温となる。 The refrigeration cooler 62 and the refrigeration cooler 64 constitute a refrigeration cycle 60 together with a compressor 61 and a condenser 66 housed in a machine room 19 provided at the lower back of the cabinet 16. The temperature in the machine room 19 becomes higher than the storage space of the refrigerator 10 due to the operation of the compressor 61 disposed in the machine room 19 and the heat radiation action of the condenser 66 and the like.

冷凍サイクル６０は、図３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６１と、圧縮機６１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６６と、凝縮器６６の出口側に設けられ冷媒流路を切り換える切替弁６７と、冷蔵用冷却器６２及び冷凍用冷却器６４と、これらの冷却器６２，６４のための絞り手段としての冷蔵用減圧装置６８及び冷凍用減圧装置６９と、逆止弁７０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６１から吐出された冷媒を循環させて冷蔵用冷却器６２及び冷凍用冷却器６４を冷却する。 As shown in FIG. 3, the refrigeration cycle 60 includes a compressor 61 that discharges a high-temperature and high-pressure gaseous refrigerant, a condenser 66 that receives the gaseous refrigerant discharged from the compressor 61 and liquefies heat, and a condenser A switching valve 67 provided on the outlet side of the condenser 66 for switching the refrigerant flow path, a refrigeration cooler 62 and a refrigeration cooler 64, and a refrigeration decompression device 68 as a throttling means for the coolers 62 and 64. The refrigerating cooler 62 and the refrigerating cooler 64 are circulated by circulating the refrigerant discharged from the compressor 61 by connecting them with a refrigerant pipe. Cool down.

冷蔵用冷却室２８は、図１に示すように、冷蔵室２２の背面に設けられた背面ダクト２７に接続されており、冷蔵用送風ファン６３の回転により冷蔵用冷却器６２で冷却された空気が、背面ダクト２７の下端から上端へ上方に向けて流れ込み、冷蔵室２２の背面に設けられた吹出口２９から冷蔵室２２内へ吹き出す。冷蔵室２２へ吹き出した空気は、冷蔵室２２内を流れた後、一部が仕切壁２１に設けられた吸込口３０から冷蔵用冷却室２８に戻り、他の一部が仕切壁２１に穿設された不図示の導入口を通って野菜室２４へ流れ込み野菜室２４内を流れた後、野菜室２４の背面に設けられた吸込口３１から冷蔵用冷却室２８に戻る。 As shown in FIG. 1, the refrigeration cooling chamber 28 is connected to a rear duct 27 provided on the rear surface of the refrigeration chamber 22, and the air cooled by the refrigeration cooler 62 by the rotation of the refrigeration blower fan 63. However, it flows upward from the lower end to the upper end of the back duct 27 and blows out into the refrigerating chamber 22 from the air outlet 29 provided on the back surface of the refrigerating chamber 22. After the air blown into the refrigerator compartment 22 flows through the refrigerator compartment 22, part of the air returns to the refrigerator compartment 28 from the suction port 30 provided in the partition wall 21, and the other part penetrates the partition wall 21. After flowing into the vegetable compartment 24 through the provided inlet (not shown) and flowing through the vegetable compartment 24, the suction chamber 31 is provided on the back of the vegetable compartment 24 and returns to the refrigerated cooling compartment 28.

冷凍用冷却室７１は、図１，４，５に示すように、ダクトを介して製氷室４２及び小型冷凍室４６の背面に設けられた吹出口７２、７３に接続されるとともに、第１吹出ダクト７４、第２吹出ダクト７５及び吸込ダクト７６が接続されている。 As shown in FIGS. 1, 4, and 5, the freezing cooling chamber 71 is connected to air outlets 72 and 73 provided on the back surfaces of the ice making chamber 42 and the small freezing chamber 46 through a duct, and the first outlet The duct 74, the 2nd blowing duct 75, and the suction duct 76 are connected.

第１吹出ダクト７４は、冷凍室５０の上面を構成する仕切壁４９の内部に設けられ、仕切壁４９の後部に設けられた吹出口７７と冷凍用冷却室７１とを連結している。 The first blowing duct 74 is provided inside the partition wall 49 that constitutes the upper surface of the freezer compartment 50, and connects the air outlet 77 provided at the rear of the partition wall 49 and the freezing cooling chamber 71.

第２吹出ダクト７５及び吸込ダクト７６は、冷凍室５０の背面に設けられた冷凍用冷却器６４の前面を覆うカバー体７８の内部に設けられ、冷凍室５０の背面に開口する吹出口７９及び冷凍側吸込口８０と冷凍用冷却室７１とを連結している。 The second outlet duct 75 and the suction duct 76 are provided inside a cover body 78 that covers the front surface of the refrigeration cooler 64 provided on the back surface of the freezer compartment 50, and the air outlet 79 that opens to the back surface of the freezer compartment 50 and The freezing side suction port 80 and the freezing cooling chamber 71 are connected.

具体的には、第２吹出ダクト７５及び吸込ダクト７６は、冷凍室５０の背面に設けられた冷凍用冷却器６４の前面を覆うカバー体７８の内部に幅方向にずらして設けられており、この例では、幅方向中央部に設けられた第２吹出ダクト７５の幅方向両側に吸込ダクト７６が設けられている。 Specifically, the second blow-out duct 75 and the suction duct 76 are provided in the cover body 78 that covers the front surface of the refrigeration cooler 64 provided on the back surface of the freezer compartment 50 and is shifted in the width direction. In this example, suction ducts 76 are provided on both sides in the width direction of the second outlet duct 75 provided at the center in the width direction.

第２吹出ダクト７５は、その先端が下側収納容器５３に設けられた後方開口部５３ｂの後方まで延びている。第２吹出ダクト７５の先端に設けられた吹出口７９は、前方あるいは前方より僅かに斜め下方に向かって開口し、下側収納容器５３に設けられた後方開口部５３ｂと対向している。 The tip of the second blowout duct 75 extends to the rear of the rear opening 53 b provided in the lower storage container 53. The outlet 79 provided at the tip of the second outlet duct 75 opens slightly obliquely downward from the front or the front and faces the rear opening 53 b provided in the lower storage container 53.

第２吹出ダクト７５の幅方向両側に設けられた２つの吸込ダクト７６の先端は、下側収納容器５３に設けられた後方開口部５３ｂの後方まで延びており、下方に向かって開口する冷凍側吸込口８０が２つの吸込ダクト７６の先端にそれぞれ設けられている。これらの冷凍側吸込口８０は、下側収納容器５３に設けられた後方開口部５３ｂの下端より上方であって、吹出口７９の下端より下方に位置している（図５参照）。つまり、本実施形態では、冷凍貯蔵空間４０に設けられた全ての冷凍側吸込口８０が、冷凍貯蔵空間４０において最下段に配設された下側収納容器５３の後方開口部５３ｂの後方に配置され、冷凍貯蔵空間４０に設けられた全ての吹出口７２，７３，７７より下方に配置されている。 The front ends of the two suction ducts 76 provided on both sides in the width direction of the second blowing duct 75 extend to the rear of the rear opening 53b provided in the lower storage container 53, and open on the freezing side. A suction port 80 is provided at each end of the two suction ducts 76. These freezing side suction ports 80 are located above the lower end of the rear opening 53b provided in the lower storage container 53 and below the lower end of the outlet 79 (see FIG. 5). That is, in the present embodiment, all the freezing side suction ports 80 provided in the frozen storage space 40 are arranged behind the rear opening 53b of the lower storage container 53 provided in the lowest stage in the frozen storage space 40. And disposed below all the outlets 72, 73, 77 provided in the frozen storage space 40.

そして、冷凍用冷却器６４で冷却された空気は、冷凍用冷却室７１内の冷凍用送風ファン６５の回転により、吹出口７２，７３から製氷室４２及び小型冷凍室４６内へ吹き出すとともに、第１吹出ダクト７４及び第２吹出ダクト７５を通って吹出口７７、７９から冷凍室５０内へ吹き出す。 The air cooled by the refrigeration cooler 64 is blown out from the outlets 72 and 73 into the ice making chamber 42 and the small freezing chamber 46 by the rotation of the refrigeration blower fan 65 in the refrigeration cooling chamber 71. It blows out into the freezer compartment 50 from the blower outlets 77 and 79 through the 1 blowout duct 74 and the 2nd blowout duct 75.

具体的には、吹出口７２，７３から製氷室４２及び小型冷凍室４６内へ吹き出した空気は、製氷室４２及び小型冷凍室４６の内部に設けられた収納容器４４，４８内を冷却しながら流れ、収納容器４４，４８の前側下部に設けられた貫通孔４４ａ，４８ａと冷凍仕切壁４９の前側に穿設された不図示の導入口を通って冷凍室５０へ流れ込む。 Specifically, the air blown out from the outlets 72 and 73 into the ice making chamber 42 and the small freezing chamber 46 cools the storage containers 44 and 48 provided inside the ice making chamber 42 and the small freezing chamber 46. It flows into the freezer compartment 50 through the through holes 44a, 48a provided in the lower front side of the storage containers 44, 48 and the inlet (not shown) formed in the front side of the freezing partition wall 49.

冷凍仕切壁４９に設けられた導入口から冷凍室５０へ流れ込んだ空気は、第１吹出ダクト７４を通って吹出口７７から冷凍室５０へ吹き出した空気とともに、上方から上側収納容器５４へ流れ込み上側収納容器５４の内部を冷却する。上側収納容器５４の内部を冷却した空気は、上側収納容器５４の前側下部に設けられた貫通孔５４ｂを通って下側収納容器５３に流れ込む。 The air flowing into the freezer compartment 50 from the inlet provided in the freezing partition wall 49 flows into the upper storage container 54 from above together with the air blown out from the outlet 77 into the freezer compartment 50 through the first outlet duct 74. The inside of the storage container 54 is cooled. The air that has cooled the inside of the upper storage container 54 flows into the lower storage container 53 through a through hole 54 b provided in the lower front side of the upper storage container 54.

また、第２吹出ダクト７５を通って吹出口７９から冷凍室５０へ吹き出した空気は、吹出口７９が下側収納容器５３の後方開口部５３ｂに対向していることから、下側収納容器５３の後方壁５３ａに当たることなく、スムーズに下側収納容器５３内へ流れ込み、上側収納容器５４に設けられた貫通孔５４ｂから下側収納容器５３に流れ込んだ空気とともに下側収納容器５３内部を流れながら冷却する。 Further, the air blown out from the blowout outlet 79 to the freezer compartment 50 through the second blowout duct 75 is directed to the lower storage container 53 because the blowout opening 79 faces the rear opening 53 b of the lower storage container 53. The air smoothly flows into the lower storage container 53 without hitting the rear wall 53a, and flows through the lower storage container 53 together with the air flowing into the lower storage container 53 from the through hole 54b provided in the upper storage container 54. Cooling.

吹出口７９は上側収納容器５４の底面部よりも下方に位置していることから、上側収納容器５４の後方壁に当たることなく、スムーズに下側収納容器５３内へ流れ込む。さらに、吹出口７９は上側収納容器５４の底面高さに近い高さに設ける。これにより、下側収納容器５３に貯蔵品を収納した場合であっても、貯蔵品が吹出口７９の高さまで収納されない限り冷気を前方にスムーズに流すことができるため、貯蔵品を収納した場合であっても下側収納容器５３内を適切に冷却することができる。 Since the air outlet 79 is located below the bottom surface of the upper storage container 54, it smoothly flows into the lower storage container 53 without hitting the rear wall of the upper storage container 54. Further, the air outlet 79 is provided at a height close to the bottom surface height of the upper storage container 54. Thereby, even when the stored item is stored in the lower storage container 53, the stored item is stored because the cool air can flow smoothly forward unless the stored item is stored up to the height of the outlet 79. Even so, the inside of the lower storage container 53 can be appropriately cooled.

そして、下側収納容器５３内部を流れた空気は、下側収納容器５３の後方開口部５３ｂの後方に設けられた冷凍側吸込口８０から吸込ダクト７６を通って冷凍用冷却室７１に戻る。 The air flowing through the lower storage container 53 returns to the freezing cooling chamber 71 through the suction duct 76 from the freezing side suction port 80 provided at the rear of the rear opening 53 b of the lower storage container 53.

以上のような本実施形態の冷蔵庫１０では、冷凍貯蔵空間４０に設けられた冷凍側吸込口８０が、冷凍貯蔵空間４０に上下に複数段配置された収納容器のうち、最下段に配置された下側収納容器５３の後方壁５３ａに設けられた後方開口部５３ｂの後方に配置されている。これにより、吹出口７２、７３、７７、７９から冷凍貯蔵室４０内に吹き出した空気は、冷凍貯蔵室４０内を冷却しながら循環した後、最下段に位置する下側収納容器５３で合流し、後方開口部５３ｂから冷凍側吸込口８０及び吸込ダクト７６を通って冷凍用冷却室７１に戻る。そのため、冷凍貯蔵空間４０へ吹き出した冷気が、庫外から熱の影響を受けやすい下側収納容器５３と冷凍室５０の隙間を実質的に流れることがなく、冷凍貯蔵空間４０内を効率に冷却することができるとともに、下側収納容器５３と冷凍室５０との間に空間を設ける必要がなくなり、収納容積を拡大することができる。 In the refrigerator 10 of the present embodiment as described above, the refrigeration side suction port 80 provided in the refrigerated storage space 40 is arranged at the lowest stage among the storage containers arranged in a plurality of stages in the refrigerated storage space 40. It is arranged behind the rear opening 53 b provided in the rear wall 53 a of the lower storage container 53. As a result, the air blown into the refrigerated storage chamber 40 from the outlets 72, 73, 77, and 79 circulates while cooling the inside of the refrigerated storage chamber 40, and then joins in the lower storage container 53 located at the lowest stage. From the rear opening 53 b, the refrigerant returns to the freezing cooling chamber 71 through the freezing side suction port 80 and the suction duct 76. Therefore, the cold air blown into the frozen storage space 40 does not substantially flow through the gap between the lower storage container 53 and the freezer compartment 50 that are easily affected by heat from outside the refrigerator, and the inside of the frozen storage space 40 is efficiently cooled. In addition, it is not necessary to provide a space between the lower storage container 53 and the freezer compartment 50, and the storage volume can be increased.

本実施形態の冷蔵庫１０では、冷凍側吸込口８０が、冷凍貯蔵空間４０に設けられた全ての吹出口７２、７３、７７、７９より下方に配置されているため、吹出口７２、７３、７７、７９から吹き出した空気が冷凍貯蔵空間４０内を冷却することなく冷凍側吸込口８０へ吸い込まれるショートサーキットが発生しにくい。 In the refrigerator 10 of this embodiment, since the freezing side suction port 80 is arrange | positioned below all the blower outlets 72, 73, 77, 79 provided in the frozen storage space 40, the blower outlets 72, 73, 77. , 79 is unlikely to generate a short circuit in which the air blown out from 79 is sucked into the freezing side suction port 80 without cooling the inside of the frozen storage space 40.

本実施形態の冷蔵庫１０では、最下段の下側収納容器５３より上方に配置された収納容器４４、４８、５４の前側下部に貫通孔４４ａ、４８ａ、５４ｂが設けられており、吹出口７２、７３、７７から冷凍貯蔵空間４０内を前方へ流れた空気が、貫通孔４４ａ、４８ａ、５４ｂを通って下側収納容器５３の前側に流れ込み、下側収納容器５３内を後方へ流れて後方開口部５３ｂから冷凍用冷却室７１に戻る。そのため、吹出口７２、７３、７７、７９から吹き出した空気は、冷凍貯蔵空間４０に設けられた複数の収納容器４４、４８、５３、５４に内部を淀みなく満遍なく冷却することができ、冷却効率を向上させることができる。 In the refrigerator 10 of the present embodiment, through holes 44 a, 48 a, 54 b are provided in front lower portions of the storage containers 44, 48, 54 arranged above the lowermost lower storage container 53, and the outlet 72, The air that has flowed forward in the frozen storage space 40 from 73 and 77 flows into the front side of the lower storage container 53 through the through holes 44a, 48a, and 54b, flows backward in the lower storage container 53, and opens rearward It returns to the freezing cooling chamber 71 from the part 53b. Therefore, the air blown out from the outlets 72, 73, 77, 79 can be uniformly cooled inside the plurality of storage containers 44, 48, 53, 54 provided in the frozen storage space 40 without any stagnation. Can be improved.

また、本実施形態の冷蔵庫１０では、冷凍側吸込口８０が、下側収納容器５３に設けられた後方開口部５３ｂの後方で下方に向かって開口しており、下側収納容器５３内部の後方開口部５３ｂより下方に滞留する空気を吸い上げるため、吹出口７２、７３、７７、７９から吹き出した空気が冷凍貯蔵空間４０内を冷却することなく冷凍側吸込口８０へ吸い込まれるショートサーキットが発生しにくい。 Further, in the refrigerator 10 of the present embodiment, the freezing side suction port 80 opens downward behind the rear opening 53 b provided in the lower storage container 53, and the rear inside the lower storage container 53. In order to suck up the air staying below the opening 53b, a short circuit is generated in which the air blown from the outlets 72, 73, 77, 79 is sucked into the refrigeration side suction port 80 without cooling the inside of the refrigeration storage space 40. Hateful.

更に、本実施形態の冷蔵庫１０では、下側収納容器５３に設けられた後方開口部５３ｂの後方に配置された吹出口７９が前方に向かって開口しており、吹出口７９から下側収納容器５３内に吹き出した空気が前方へ勢いよく吹き出すため、下側収納容器５３内で空気のショートサーキットが発生しにくい。 Furthermore, in the refrigerator 10 of this embodiment, the blower outlet 79 arrange | positioned in the back of the back opening part 53b provided in the lower storage container 53 is opened toward the front, and a lower storage container is passed from the blower outlet 79 to it. Since the air blown into 53 is blown out vigorously forward, a short circuit of air hardly occurs in the lower storage container 53.

冷気が下側収納容器５３内を循環するため、冷凍貯蔵空間４０内に比べて高温となる機械室１９と冷凍貯蔵空間４０内を循環する冷気との間に下側収納容器５３が介在することとなる。これにより、機械室１９から冷凍貯蔵空間４０内に流入する熱による影響を受けにくくなり、冷却性能を向上させることができる。 Since cold air circulates in the lower storage container 53, the lower storage container 53 is interposed between the machine room 19 that is hotter than the refrigerated storage space 40 and the cold air circulated in the refrigerated storage space 40. It becomes. Thereby, it becomes difficult to receive the influence by the heat | fever which flows in into the frozen storage space 40 from the machine room 19, and can improve cooling performance.

なお、上記した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は意図していない。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、発明の要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。 The above-described embodiments are presented as examples, and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments are included in the scope and gist of the invention, and are also included in the invention described in the scope of claims and the equivalents thereof.

１０…冷蔵庫、１６…キャビネット、２０…冷蔵貯蔵空間、２２…冷蔵室、２４…野菜室、４０…冷凍貯蔵空間、４２…製氷室、４６…小型冷凍室、４９…仕切壁、５０…冷凍室、５１…冷凍室扉、５２…収納容器、５３…下側収納容器、５３ａ…後方壁、５３ｂ…後方開口部、５４…上側収納容器、５４ａ…底部、７１…冷凍用冷却室、７４…第１吹出ダクト、７５…第２吹出ダクト、７６…吸込ダクト、７７…吹出口、７８…カバー体、７９…吹出口、８０…冷凍側吸込口 DESCRIPTION OF SYMBOLS 10 ... Refrigerator, 16 ... Cabinet, 20 ... Cold storage space, 22 ... Cold storage room, 24 ... Vegetable room, 40 ... Refrigeration storage space, 42 ... Ice making room, 46 ... Small freezer room, 49 ... Partition wall, 50 ... Freezer room 51 ... Freezer compartment door, 52 ... Storage container, 53 ... Lower storage container, 53a ... Rear wall, 53b ... Rear opening, 54 ... Upper storage container, 54a ... Bottom, 71 ... Cooling room for freezing, 74 ... No. 1 outlet duct, 75 ... second outlet duct, 76 ... suction duct, 77 ... outlet, 78 ... cover body, 79 ... outlet, 80 ... freezing side inlet

Claims

A storage space, a plurality of storage containers disposed vertically in the storage space, a cooler for cooling air, a cooler chamber in which the cooler is disposed, and air cooled by the cooler Is provided with an air outlet from which the cooler chamber is blown out to the storage space, and a suction port through which air in the storage space is returned to the cooler chamber, and the air inlet and the air outlet provided in the storage space are provided , disposed behind the rear opening provided on the rear surface of the lowermost container,
The suction opening opens downward, the outlet opens forward,
The refrigerator which the said suction inlet sucks in the air in the lowermost storage container from the said back opening part .

The refrigerator according to claim 1, wherein the suction port is disposed below all the outlets provided in the storage space.

The refrigerator according to claim 1 or 2, wherein the storage container disposed above the lowermost storage container is provided with a through hole in a lower part on the front side.