以下、図面を参照しながら本開示を実施するための形態（実施形態と称する）を説明する。ただし、本開示は以下の実施形態に限られず、例えば異なる実施形態同士を組み合わせたり、本開示の効果を著しく損なわない範囲で任意に変形したりできる。また、同じ部材については同じ符号を付すものとし、重複する説明は省略する。更に、同じ機能を有するものは同じ名称を付すものとする。図示の内容は、あくまで模式的なものであり、図示の都合上、本開示の効果を著しく損なわない範囲で実際の構成から変更することがある。
Hereinafter, embodiments (referred to as embodiments) for carrying out the present disclosure will be described with reference to the drawings. However, the present disclosure is not limited to the following embodiments, and for example, different embodiments can be combined or arbitrarily modified as long as the effects of the present disclosure are not significantly impaired. Further, the same members shall be designated by the same reference numerals, and duplicate description will be omitted. Furthermore, those having the same function shall be given the same name. The contents of the illustration are merely schematic, and for the convenience of illustration, the actual configuration may be changed to the extent that the effects of the present disclosure are not significantly impaired.
図１は、本実施形態の冷蔵庫１の正面図である。Ａ－Ａ線及びＢ－Ｂ線については図３及び図８を参照しながら後記する。冷蔵庫１の外形寸法として、例えば、左右方向の長さである幅は６８０ｍｍ、正面－背面方向（以下、前後方向という）の長さである奥行きは７２０ｍｍ、上下方向の長さである高さは１７７０ｍｍであるが、これに限定されない。
FIG. 1 is a front view of the refrigerator 1 of the present embodiment. Lines AA and BB will be described later with reference to FIGS. 3 and 8. As the external dimensions of the refrigerator 1, for example, the width which is the length in the left-right direction is 680 mm, the depth which is the length in the front-back direction (hereinafter referred to as the front-rear direction) is 720 mm, and the height which is the length in the up-down direction is. It is 1770 mm, but is not limited to this.
冷蔵庫１は、扉２１により正面側を開口可能に閉塞され、断熱箱体１０の内部の上段に区画（形成）された冷凍室２（第２貯蔵室。図２）と、扉３１（貯蔵室扉）により正面側を開口可能に閉塞され、下段に区画（形成）された冷蔵室３（第１貯蔵室、貯蔵室。図２）を備える。扉２１の左側には、切替室４（図３）の温度帯（第１温度帯又は第２温度帯）を設定する操作パネル２１２（温度切替機構）が備えられる。従って、切替室４は、冷蔵室３とは異なる温度帯に設定され得る。操作パネル２１２は、例えば、いずれも図示しない操作ボタン、液晶表示、タッチパネル等を備え、使用者が操作ボタンを操作することで、切替室４の温度帯が切り替えられる。温度切替機構としては、その他にも、冷蔵庫１とは別機器であるスマートフォン等から発せられる使用者の指令を受けることで、切替室４の温度帯が切り替えられるものでもよい。操作パネル２１２を冷凍室２又は冷蔵室３の内面に設けることで扉の意匠性及び清掃性を高めるようにしてもよい。
The refrigerator 1 is closed by a door 21 so that the front side can be opened, and the freezing chamber 2 (second storage chamber; FIG. 2) and the door 31 (storage chamber) are partitioned (formed) in the upper stage inside the heat insulating box 10. A refrigerating chamber 3 (first storage chamber, storage chamber; FIG. 2) is provided in which the front side is closed so as to be openable by a door) and is partitioned (formed) in the lower stage. On the left side of the door 21, an operation panel 212 (temperature switching mechanism) for setting the temperature zone (first temperature zone or second temperature zone) of the switching chamber 4 (FIG. 3) is provided. Therefore, the switching chamber 4 may be set in a temperature zone different from that of the refrigerating chamber 3. The operation panel 212 is provided with, for example, an operation button (not shown), a liquid crystal display, a touch panel, or the like, and the temperature zone of the switching chamber 4 can be switched by the user operating the operation button. As the temperature switching mechanism, the temperature zone of the switching chamber 4 may be switched by receiving a user's command issued from a smartphone or the like which is a device different from the refrigerator 1. The operation panel 212 may be provided on the inner surface of the freezing chamber 2 or the refrigerating chamber 3 to enhance the design and cleanability of the door.
図２は、冷蔵庫１の扉２１，３１を開いた状態を表す正面図である。冷凍室２は、後記する冷凍温度帯を含む第２温度帯に設定されるとともに、冷蔵室３よりも内容積が小さなものである。内容積をこのような関係にすることで、必要に応じて、切替室４（図３）の温度帯を冷凍室２の温度帯と同じに設定することで、冷凍室２と同じ温度帯の室の大きさを拡張でき、使い勝手を向上できる。
FIG. 2 is a front view showing a state in which the doors 21 and 31 of the refrigerator 1 are opened. The freezing chamber 2 is set to a second temperature zone including the freezing temperature zone described later, and has a smaller internal volume than the refrigerating chamber 3. By setting the internal volume in such a relationship and setting the temperature zone of the switching chamber 4 (FIG. 3) to be the same as the temperature zone of the freezing chamber 2 as necessary, the temperature zone of the same temperature zone as that of the freezing chamber 2 can be set. The size of the room can be expanded and usability can be improved.
冷蔵室３は、後記する冷蔵温度帯である第１温度帯に設定される。冷凍室２及び冷蔵室３は、それぞれ、断熱箱体１０の正面側に冷凍室２及び冷蔵室３の開閉手段である扉２１及び扉３１（貯蔵室扉）を備える。扉２１，３１は、冷蔵庫１の右端側に回動可能に固定され、正面側に開くことができる回転式扉である。
The refrigerating chamber 3 is set to a first temperature zone, which is a refrigerating temperature zone described later. The freezing room 2 and the refrigerating room 3 are provided with a door 21 and a door 31 (storage room door) which are means for opening and closing the freezing room 2 and the refrigerating room 3, respectively, on the front side of the heat insulating box body 10. The doors 21 and 31 are rotary doors that are rotatably fixed to the right end side of the refrigerator 1 and can be opened to the front side.
冷蔵庫１は、冷凍室２の内部に棚３３を備えており、冷凍室２内における食品を設置可能な面積を増やすことで、収納性を高めている。
The refrigerator 1 is provided with a shelf 33 inside the freezing chamber 2, and the storage capacity is improved by increasing the area in which the food can be installed in the freezing chamber 2.
冷蔵庫１は、冷蔵室３の内部に、切替室４（図３）の正面側に形成された開口を閉塞する切替室扉４６を備え、切替室扉４６は扉３１とは独立して開閉可能である。切替室４に収容される切替室容器４４（図３）は、冷蔵室３の内部に露出した（後記する外郭４５から露出した）取っ手４４３（張り出し部）を備える。使用者が取っ手４４３を正面側（手前側）に引くことで内部の切替室容器４４が正面側に引き出されるとともに、切替室扉４６が開く。なお、取っ手４４３を備えない場合には、切替室容器４４のうち最も正面側に張り出し、かつ、冷蔵室３の内部に露出した部分が張り出し部に相当する。
The refrigerator 1 is provided with a switching chamber door 46 that closes an opening formed on the front side of the switching chamber 4 (FIG. 3) inside the refrigerating chamber 3, and the switching chamber door 46 can be opened and closed independently of the door 31. Is. The switching chamber container 44 (FIG. 3) housed in the switching chamber 4 includes a handle 443 (overhanging portion) exposed inside the refrigerating chamber 3 (exposed from the outer shell 45 described later). When the user pulls the handle 443 to the front side (front side), the internal switching chamber container 44 is pulled out to the front side, and the switching chamber door 46 is opened. When the handle 443 is not provided, the portion of the switching chamber container 44 that overhangs the most front side and is exposed inside the refrigerating chamber 3 corresponds to the overhanging portion.
冷蔵庫１は、冷蔵室３の内部で上から順に棚３５１，３５２，３５３を備え、冷蔵室３内における食品の設置可能な面積を増やすことで、収納性を高めている。冷蔵庫１は、冷蔵室３の最下部に、野菜等の食品を収納する引き出し式の冷蔵室容器４３を備える。
The refrigerator 1 is provided with shelves 351 and 352, 353 in the refrigerating chamber 3 in order from the top, and the storage area is improved by increasing the area in which the food can be installed in the refrigerating chamber 3. The refrigerator 1 is provided with a drawer-type refrigerating room container 43 for storing foods such as vegetables at the lowermost part of the refrigerating room 3.
冷蔵庫１は、冷蔵室３内の棚３５２と棚３５３との間の左端に、製氷用の水を貯める製氷水タンク６１を備える。冷蔵庫１は、冷凍室２の左下部に、自動製氷装置６２及び貯氷容器６３を備える。自動製氷装置６２は、いずれも図示しないが、給水ポンプ、製氷皿、離氷機構、製氷センサ（温度センサ）を備える。給水ポンプの入口と、製氷水タンク６１とは給水管（不図示）により接続される。給水ポンプの作動によって製氷水タンク６１から製氷皿に水が供給されて製氷が行われる。製氷センサが検知する温度が所定温度（一例として－８℃）に到達した場合に、製氷完了と判定され、離氷機構が作動することで氷が貯氷容器６３に自動的に供給される。
The refrigerator 1 is provided with an ice making water tank 61 for storing ice making water at the left end between the shelves 352 and the shelves 353 in the refrigerating chamber 3. The refrigerator 1 is provided with an automatic ice making device 62 and an ice storage container 63 at the lower left of the freezing chamber 2. Although not shown, the automatic ice making device 62 includes a water supply pump, an ice tray, an ice removal mechanism, and an ice making sensor (temperature sensor). The inlet of the water supply pump and the ice making water tank 61 are connected by a water supply pipe (not shown). By operating the water supply pump, water is supplied from the ice making water tank 61 to the ice making tray to make ice. When the temperature detected by the ice making sensor reaches a predetermined temperature (for example, −8 ° C.), it is determined that the ice making is completed, and the ice making mechanism is activated to automatically supply ice to the ice storage container 63.
冷蔵庫１は、扉２１の内側で上から順にドアポケット３２１，３２２を備え、収納性を高めている。同様に、冷蔵庫１は、扉３１の内側で上から順にドアポケット３４１，３４２，３４３，３４４を備え、収納性を高めている。扉３１は、内側に、凸部３１３を備えるドアライナ３１２を備える。凸部３１３の機能は、図２１を参照しながら後記する。
The refrigerator 1 is provided with door pockets 321 and 322 in order from the top inside the door 21 to improve the storability. Similarly, the refrigerator 1 is provided with door pockets 341, 342, 343, 344 in order from the top inside the door 31, to improve the storability. The door 31 includes a door liner 312 having a convex portion 313 inside. The function of the convex portion 313 will be described later with reference to FIG. 21.
図３は、図１のＡ－Ａ縦断面図である。また、図４は、風路配置を示す正面図である。図３及び図４では外郭４５（図８）の図示を省略する。図示の簡略化のために、切替室４の構造を簡略化して示す。図４中の破線は、冷凍室２、冷蔵室３及び切替室４の背面側に形成される風路と部材（例えば冷却器室８に収容されるファン９１等）を示す。図４は、図２の扉２１，３１、棚３３、棚３５１，３５２，３５３、冷蔵室容器４３、切替室扉４６、切替室容器４４、製氷水タンク６１、自動製氷装置６２、貯氷容器６３を外した状態である。図４において、実線矢印は冷凍室２、冷蔵室３及び切替室４のそれぞれの内部での空気の流れを示し、破線矢印は冷凍室２、冷蔵室３及び切替室４の背面側での空気の流れを示す。
FIG. 3 is a vertical sectional view taken along the line AA of FIG. Further, FIG. 4 is a front view showing the air passage arrangement. In FIGS. 3 and 4, the outer shell 45 (FIG. 8) is not shown. For the sake of simplification of the illustration, the structure of the switching chamber 4 is shown in a simplified manner. The broken line in FIG. 4 indicates an air passage and a member (for example, a fan 91 housed in the cooler chamber 8) formed on the back side of the freezing chamber 2, the refrigerating chamber 3, and the switching chamber 4. FIG. 4 shows doors 21, 31, shelves 33, shelves 351 and 352, 353, refrigerating room containers 43, switching room doors 46, switching room containers 44, ice making water tank 61, automatic ice making device 62, and ice storage container 63 of FIG. Is in the removed state. In FIG. 4, the solid line arrow indicates the air flow inside each of the freezing chamber 2, the refrigerating chamber 3, and the switching chamber 4, and the broken line arrow indicates the air on the back side of the freezing chamber 2, the refrigerating chamber 3, and the switching chamber 4. Shows the flow of.
冷蔵庫１のＩＥＣ６２５５２－３：２０１５に基づいて測定した内容積としては、これらの数値に限定されないが、例えば冷凍室２が１０３Ｌ、冷蔵室３が２６２Ｌ、切替室４が２５Ｌにすることができる。冷蔵室３の内容積は、扉３１を開けて食材等を出し入れ可能な空間のうち、切替室４が占める体積を除いた空間の体積である。
The internal volume measured based on IEC62552-3: 2015 of the refrigerator 1 is not limited to these values, but can be, for example, 103 L for the freezing chamber 2, 262 L for the refrigerating chamber 3, and 25 L for the switching chamber 4. The internal volume of the refrigerating chamber 3 is the volume of the space excluding the volume occupied by the switching chamber 4 in the space where the door 31 can be opened to put in and take out foodstuffs and the like.
冷蔵庫１は切替室４（内室）を備え、切替室４は、冷蔵室３の内部の最上部（冷凍室２の側）に配置され、正面側に開口が形成される。冷蔵庫１は、切替室４を、冷蔵温度帯である第１温度帯、又は、冷凍温度帯を含む－５℃未満（－５℃よりも低温）の第２温度帯の何れかの温度帯に切替可能な切替室ダンパ１０６（温度切替機構）を備える。第１温度帯は、例えば－５℃以上５℃以下のうちの任意の設定温度であり、例えば約３℃である。
The refrigerator 1 includes a switching chamber 4 (inner chamber), and the switching chamber 4 is arranged at the uppermost part (side of the freezing chamber 2) inside the refrigerating chamber 3, and an opening is formed on the front side. The refrigerator 1 sets the switching chamber 4 in either the first temperature zone, which is the refrigerating temperature zone, or the second temperature zone, which is less than -5 ° C (lower than -5 ° C) including the freezing temperature zone. It is equipped with a switchable switching chamber damper 106 (temperature switching mechanism). The first temperature zone is, for example, an arbitrary set temperature of −5 ° C. or higher and 5 ° C. or lower, for example, about 3 ° C.
第２温度帯は、－５℃未満の任意の設定温度であればよいが、－５℃未満にすることで、切替室４に収容した食品等の収容物を十分に凍結させて冷凍できる。これにより、冷蔵庫１の使い勝手を向上できる。第２温度帯は例えば－１２℃である。第２温度帯の下限は特に制限されないが、例えば－２０℃以上である。ただし、第２温度帯としては、好ましくは－６℃以下、より好ましくは－１２℃以下、よりさらに好ましくは－１８℃以下である。切替室４を第１温度帯に設定する場合、切替室４の温度帯と冷蔵室３の設定温度は同じでもよく、異なっていてもよい。切替室４を第２温度帯に設定する場合、切替室４の温度帯と冷凍室２の設定温度は同じでもよく、異なっていてもよい。
The second temperature zone may be any set temperature of less than −5 ° C., but by setting the temperature to less than −5 ° C., the contents such as food contained in the switching chamber 4 can be sufficiently frozen and frozen. As a result, the usability of the refrigerator 1 can be improved. The second temperature zone is, for example, −12 ° C. The lower limit of the second temperature zone is not particularly limited, but is, for example, −20 ° C. or higher. However, the second temperature zone is preferably −6 ° C. or lower, more preferably −12 ° C. or lower, and even more preferably −18 ° C. or lower. When the switching chamber 4 is set to the first temperature zone, the temperature zone of the switching chamber 4 and the set temperature of the refrigerating chamber 3 may be the same or different. When the switching chamber 4 is set to the second temperature zone, the temperature zone of the switching chamber 4 and the set temperature of the freezing chamber 2 may be the same or different.
図示の例では、切替室４は、冷蔵室３の内部に配置される。このようにすることで、冷蔵庫１の正面側に切替室４用の独立した扉を設ける必要が無いため、庫外に露出する扉の数を削減できる。また、切替室４内と冷蔵室３内との温度差は、切替室４内と冷蔵庫１外（庫外）との温度差よりも小さい。このため、切替室４への食品の出し入れを行う際に、庫外との温度勾配に起因して切替室４から逃げる冷熱を少なくできる。これにより、切替室４の温度変動を小さくでき、切替室４に貯蔵される食品の保存性に優れた冷蔵庫１を提供できる。
In the illustrated example, the switching chamber 4 is arranged inside the refrigerating chamber 3. By doing so, it is not necessary to provide an independent door for the switching chamber 4 on the front side of the refrigerator 1, so that the number of doors exposed to the outside of the refrigerator can be reduced. Further, the temperature difference between the inside of the switching chamber 4 and the inside of the refrigerating chamber 3 is smaller than the temperature difference between the inside of the switching chamber 4 and the outside of the refrigerator 1 (outside the refrigerator). Therefore, when food is taken in and out of the switching chamber 4, the amount of cold heat escaping from the switching chamber 4 due to the temperature gradient with the outside of the refrigerator can be reduced. As a result, the temperature fluctuation of the switching chamber 4 can be reduced, and the refrigerator 1 having excellent storage stability of the food stored in the switching chamber 4 can be provided.
図示はしないが、別の実施形態では、切替室４は、冷凍室２（冷凍温度帯を含む－５℃未満の第２温度帯に設定された貯蔵室）の内部に配置される。このようにしても、本開示による効果が奏される。
Although not shown, in another embodiment, the switching chamber 4 is arranged inside a freezing chamber 2 (a storage chamber set to a second temperature zone of less than −5 ° C. including a freezing temperature zone). Even in this way, the effect of the present disclosure is achieved.
冷蔵庫１は、鋼板製の外箱１０１と合成樹脂製（本実施形態ではＡＢＳ樹脂）の内箱１０２との間に発泡断熱材９３を充填して形成される断熱箱体１０により、庫外と庫内が隔てられて構成される。扉２１，３１の内部には発泡断熱材９４が充填される。本実施形態の冷蔵庫１では、発泡断熱材９３及び発泡断熱材９４はポリウレタンフォームである。
The refrigerator 1 is provided outside the refrigerator by a heat insulating box 10 formed by filling a foamed heat insulating material 93 between an outer box 101 made of a steel plate and an inner box 102 made of synthetic resin (ABS resin in the present embodiment). The interior of the refrigerator is separated. The inside of the doors 21 and 31 is filled with the foamed heat insulating material 94. In the refrigerator 1 of the present embodiment, the foam heat insulating material 93 and the foam heat insulating material 94 are polyurethane foams.
冷蔵庫１は、冷凍室２の背面に冷却器７が収納された冷却器室８を備え、冷却器７は、冷凍室２の背面側に配置される。冷却器７は、空気の冷却により、冷凍室２、冷蔵室３及び切替室４に供給される冷気を生成する。冷凍室２と冷蔵室３との間には断熱仕切壁２８が配置される。このように冷却器７及び断熱仕切壁２８が配置されることで、冷却器７によって冷凍室２を効率的に低温にできる。また、冷蔵室３及び第１温度帯に設置された切替室４は、正面視で冷却器７とは異なる位置に配置されるため、冷蔵室３及び切替室４の背面側に断熱壁を不設置又はその厚さを薄くしても、冷却器７による冷蔵室３及び切替室４の過度の冷却を抑制できる。これにより、スペース効率を向上できる。
The refrigerator 1 includes a cooler chamber 8 in which a cooler 7 is housed on the back surface of the freezer chamber 2, and the cooler 7 is arranged on the back side of the freezer chamber 2. The cooler 7 generates cold air supplied to the freezing chamber 2, the refrigerating chamber 3, and the switching chamber 4 by cooling the air. A heat insulating partition wall 28 is arranged between the freezing room 2 and the refrigerating room 3. By arranging the cooler 7 and the heat insulating partition wall 28 in this way, the freezing chamber 2 can be efficiently cooled to a low temperature by the cooler 7. Further, since the refrigerating chamber 3 and the switching chamber 4 installed in the first temperature zone are arranged at different positions from the cooler 7 in the front view, there is no heat insulating wall on the back side of the refrigerating chamber 3 and the switching chamber 4. Excessive cooling of the refrigerating chamber 3 and the switching chamber 4 by the cooler 7 can be suppressed even if the installation or the thickness thereof is reduced. This can improve space efficiency.
冷蔵庫１は、冷却器室８の上部正面側にファン９１を備え、冷却器室８と冷凍室２との間には、冷凍室２に冷気を供給する冷凍室送風路１１を備える。ファン９１は、例えば軸流ファンであるプロペラファンである。冷凍室送風路１１は、左右方向に長い冷凍室吐出口１１１，１１２及び自動製氷装置６２の製氷皿に向けた冷凍室吐出口１１３を備える。冷凍室送風路１１及び冷凍室吐出口１１１，１１２，１１３は、冷凍室２の背面の仕切部材である冷凍室風路形成部材２００によって形成される。
The refrigerator 1 is provided with a fan 91 on the upper front side of the cooler chamber 8, and a freezing chamber air passage 11 for supplying cold air to the freezing chamber 2 is provided between the cooler chamber 8 and the freezing chamber 2. The fan 91 is, for example, a propeller fan which is an axial fan. The freezing chamber air passage 11 includes a freezing chamber discharging port 111, 112 that is long in the left-right direction and a freezing chamber discharging port 113 that faces the ice tray of the automatic ice making device 62. The freezing chamber air passage 11 and the freezing chamber discharge ports 111, 112, 113 are formed by a freezing chamber air passage forming member 200 which is a partition member on the back surface of the freezing chamber 2.
図５は、冷凍室風路形成部材２００の分解斜視図である。冷凍室風路形成部材２００は、前パネル２１０及び後パネル２２０を備える。前パネル２１０は冷凍室吐出口１１１，１１２，１１３を備える。後パネル２２０は、ファン９１を設置する開口部２２５を備える。後パネル２２０は、外周に板状の突出部２２６を備え、正面側を前パネル２１０で覆うことで、冷凍室送風路１１及び冷蔵室切替室送風路１２が形成される。前パネル２１０と後パネル２２０とを組み合わせ、ファン９１を実装することで、冷凍室風路形成部材２００が形成される。なお、冷凍室風路形成部材２００を構成する前パネル２１０と後パネル２２０は何れも合成樹脂製（例えばポリプロピレン）であり、発泡断熱材は備えていない。
FIG. 5 is an exploded perspective view of the freezing chamber air passage forming member 200. The freezing chamber air passage forming member 200 includes a front panel 210 and a rear panel 220. The front panel 210 includes freezing chamber discharge ports 111, 112, 113. The rear panel 220 includes an opening 225 in which the fan 91 is installed. The rear panel 220 is provided with a plate-shaped protrusion 226 on the outer periphery thereof, and the front side is covered with the front panel 210 to form a freezing chamber air passage 11 and a refrigerating chamber switching chamber air passage 12. By combining the front panel 210 and the rear panel 220 and mounting the fan 91, the freezing chamber air passage forming member 200 is formed. The front panel 210 and the rear panel 220 constituting the freezing chamber air passage forming member 200 are both made of synthetic resin (for example, polypropylene) and are not provided with a foamed heat insulating material.
図３及び図４に戻って、冷蔵庫１は、切替室４の温度を検知する切替室温度センサ４３１（温度検知装置）を備え、切替室温度センサ４３１により、検出値に基づき切替室４の温度を制御でき、冷蔵庫１の信頼性を向上できる。冷蔵庫１は、冷凍室２の温度を検知する冷凍室温度センサ５１、冷蔵室３の温度を検知する冷蔵室温度センサ５２、冷却器室８の温度を検知する冷却器温度センサ（不図示）、庫外の温度を検知する庫外温度センサ（不図示）を備える。これらのセンサにより、冷凍室２、冷蔵室３、冷却器室８、庫外の温度を検知できる。冷蔵庫１は、扉２１,３１の開閉を検知する開閉検知センサ（不図示）を備える。
Returning to FIGS. 3 and 4, the refrigerator 1 is provided with a switching chamber temperature sensor 431 (temperature detection device) that detects the temperature of the switching chamber 4, and the temperature of the switching chamber 4 is determined by the switching chamber temperature sensor 431 based on the detected value. Can be controlled, and the reliability of the refrigerator 1 can be improved. The refrigerator 1 includes a freezer room temperature sensor 51 that detects the temperature of the freezer room 2, a refrigerating room temperature sensor 52 that detects the temperature of the refrigerating room 3, and a cooler temperature sensor (not shown) that detects the temperature of the cooler room 8. It is equipped with an outside temperature sensor (not shown) that detects the temperature outside the refrigerator. With these sensors, it is possible to detect the temperatures of the freezing chamber 2, the refrigerating chamber 3, the cooler chamber 8, and the outside of the refrigerator. The refrigerator 1 includes an open / close detection sensor (not shown) that detects the open / close of the doors 21 and 31.
冷蔵庫１は、冷凍室送風路１１の下部に、冷凍室送風路１１を流れた空気を冷蔵室３及び切替室４に送る冷蔵室切替室送風路１２を備える。冷蔵庫１は、冷蔵室切替室送風路１２の下部であって切替室４の背部に、冷蔵室ダンパ１０５（ダンパ１１０の一例。冷蔵室３への送風制御機構）と、切替室ダンパ１０６（ダンパ１１０の一例。切替室４への送風制御機構）を備える。冷蔵室ダンパ１０５及び切替室ダンパ１０６のそれぞれの開口（不図示）は、開口の一端に回動可能に軸支された例えば板状の開閉体（不図示）をモータ（不図示）により駆動させることで、開閉制御される。
The refrigerator 1 is provided with a refrigerating room switching room air passage 12 below the freezing room air passage 11 to send the air flowing through the freezing room air passage 11 to the refrigerating room 3 and the switching room 4. The refrigerator 1 is located at the lower part of the air passage 12 of the refrigerating room switching room and at the back of the switching room 4, the refrigerating room damper 105 (an example of the damper 110; the air blowing control mechanism to the refrigerating room 3) and the switching room damper 106 (damper). An example of 110. A blower control mechanism to the switching chamber 4) is provided. Each opening (not shown) of the refrigerator compartment damper 105 and the switching chamber damper 106 is driven by a motor (not shown), for example, a plate-shaped opening / closing body (not shown) rotatably supported at one end of the opening. By doing so, opening and closing is controlled.
冷蔵庫１は、冷蔵室ダンパ１０５の下方に冷蔵室送風路１３を、切替室ダンパ１０６の下方から正面側にかけて切替室送風路１４（内室吐送風路）を備える。冷蔵室送風路１３は、冷却器７で生成した冷気を冷蔵室３に送風するものであり、切替室送風路１４は、冷却器７で生成した冷気した冷気を切替室４に送風するものである。
The refrigerator 1 is provided with a refrigerating room air passage 13 below the refrigerating room damper 105, and a switching room air passage 14 (inner room discharge air passage) from below the switching room damper 106 to the front side. The refrigerating chamber air passage 13 blows the cold air generated by the cooler 7 to the refrigerating chamber 3, and the switching chamber air passage 14 blows the cold air generated by the cooler 7 to the switching chamber 4. be.
冷蔵室送風路１３は、冷蔵室３の左右方向の略中央に位置し、冷蔵室吐出口１３１，１３２，１３３を備える。切替室送風路１４は、切替室４の背面投影領域に位置し、切替室４の左右方向の略中心に位置する切替室吐出口１４１を備える。切替室吐出口１４１は、冷蔵室３及び切替室４の背面を構成する冷蔵室風路形成部材３００に形成される。冷蔵室送風路１３、切替室送風路１４、冷蔵室吐出口１３１，１３２，１３３、切替室吐出口１４１、切替室戻り風路１７（図４）、切替室戻り口１７１は、冷蔵室３の背面の仕切部材である冷蔵室風路形成部材３００によって形成される。
The refrigerating chamber air passage 13 is located substantially in the center of the refrigerating chamber 3 in the left-right direction, and includes refrigerating chamber discharge ports 131, 132, 133. The switching chamber air passage 14 is located in the rear projection region of the switching chamber 4, and includes a switching chamber discharge port 141 located substantially at the center of the switching chamber 4 in the left-right direction. The switching chamber discharge port 141 is formed in the refrigerating chamber air passage forming member 300 constituting the back surfaces of the refrigerating chamber 3 and the switching chamber 4. The refrigerating room air passage 13, the switching room air passage 14, the refrigerating room discharge port 131, 132, 133, the switching room discharge port 141, the switching room return air passage 17 (FIG. 4), and the switching room return port 171 are of the refrigerating room 3. It is formed by a refrigerating chamber air passage forming member 300, which is a partition member on the back surface.
図６は、冷蔵室風路形成部材３００の分解斜視図である。冷蔵室風路形成部材３００は、前パネル３１０、前断熱材３２０及び後断熱材３３０を備える。前パネル３１０は冷蔵室吐出口１３１，１３２，１３３と、切替室吐出口１４１及び切替室戻り口１７１を備える。前断熱材３２０は、冷蔵室吐出口１３１，１３２，１３３と冷蔵室送風路１３とを連通させる開口３１５，３１６，３１７と、切替室吐出口１４１と切替室送風路１４とを連通させる開口３１８を備える。前断熱材３２０は、切替室戻り風路１７を形成する切り欠き部３１９を備える。開口３１８は、切替室送風路１４に繋がる。後断熱材３３０は、冷蔵室送風路１３、切替室送風路１４、ダンパ１１０（冷蔵室ダンパ１０５及び切替室ダンパ１０６の一体物）及びファン９２を収納するための凹部３３１を備える。ダンパ１１０は、ダンパ１１０を駆動させるモータ（不図示）を収納するモータ収納部１１４を備える。ファン９２は例えば軸流ファンであるプロペラファンである。ファン９２の駆動により、冷蔵室３に供給される空気の量を調整できる。
FIG. 6 is an exploded perspective view of the refrigerating chamber air passage forming member 300. The refrigerating chamber air passage forming member 300 includes a front panel 310, a front heat insulating material 320, and a rear heat insulating material 330. The front panel 310 includes refrigerating chamber discharge ports 131, 132, 133, a switching chamber discharge port 141, and a switching chamber return port 171. The front heat insulating material 320 has openings 315,316,317 for communicating the refrigerating chamber discharge ports 131, 132, 133 and the refrigerating chamber air passage 13, and openings 318 for communicating the switching chamber discharge port 141 and the switching chamber air passage 14. To prepare for. The front heat insulating material 320 includes a notch portion 319 that forms the return air passage 17 of the switching chamber. The opening 318 is connected to the air passage 14 of the switching chamber. The rear heat insulating material 330 includes a refrigerating chamber air passage 13, a switching chamber air passage 14, a damper 110 (an integral part of the refrigerating chamber damper 105 and the switching chamber damper 106), and a recess 331 for accommodating the fan 92. The damper 110 includes a motor accommodating portion 114 for accommodating a motor (not shown) for driving the damper 110. The fan 92 is, for example, a propeller fan which is an axial fan. By driving the fan 92, the amount of air supplied to the refrigerating chamber 3 can be adjusted.
前パネル３１０と前断熱材３２０と後断熱材３３０とを組み合わせ、ダンパ１１０及びファン９２を実装することで、冷蔵室風路形成部材３００が形成される。なお、冷蔵室送風路１３と切替室送風路１４とは、ダンパ１１０の下流側（下側）においてモータ収納部１１４によって分離され、空気の流通が抑制される。前パネル３１０は合成樹脂製（例えばポリプロピレン）であり、前断熱材３２０及び後断熱材３３０は発泡断熱材（例えばポリスチレンフォーム）である。
By combining the front panel 310, the front heat insulating material 320, and the rear heat insulating material 330 and mounting the damper 110 and the fan 92, the refrigerating chamber air passage forming member 300 is formed. The refrigerating chamber air passage 13 and the switching chamber air passage 14 are separated by the motor accommodating portion 114 on the downstream side (lower side) of the damper 110, and the air flow is suppressed. The front panel 310 is made of synthetic resin (for example, polypropylene), and the front heat insulating material 320 and the rear heat insulating material 330 are foamed heat insulating materials (for example, polystyrene foam).
図３及び図４に戻って、冷蔵庫１は、冷凍室２と冷蔵室３及び切替室４との間を隔てる断熱仕切壁２８を備え、断熱仕切壁２８の内部には、発泡断熱材９５（例えばポリスチレンフォーム）が配置されている。冷蔵庫１は、断熱仕切壁２８の内部に、冷凍室戻り風路１５と、冷蔵室戻り風路１６（貯蔵室戻り風路）を備える。冷凍室戻り風路１５は、冷凍室２から冷却器７に空気を戻すものであり、冷蔵室戻り風路１６は、冷蔵室３から冷却器７に空気を戻すものであり、断熱仕切壁２８に備えられる。冷凍室戻り風路１５は、冷凍室２の下面（断熱仕切壁２８の上面）の正面側に冷凍室戻り口１５１を備え、冷却器室８の下部正面側に冷却器室戻り口１５２を備える。冷蔵室戻り風路１６は、冷蔵室３の上面（断熱仕切壁２８の下面）の切替室４の正面側に冷蔵室戻り口１６１を備え、冷却器室８の下部正面左側に、冷却器室戻り口１６２を備える。
Returning to FIGS. 3 and 4, the refrigerator 1 includes a heat insulating partition wall 28 that separates the freezing room 2 from the refrigerating room 3 and the switching room 4, and the inside of the heat insulating partition wall 28 is a foamed heat insulating material 95 ( For example, polystyrene foam) is arranged. The refrigerator 1 includes a freezing room return air passage 15 and a refrigerating room return air passage 16 (storage room return air passage) inside the heat insulating partition wall 28. The freezing chamber return air passage 15 returns air from the freezing chamber 2 to the cooler 7, and the refrigerating chamber return air passage 16 returns air from the refrigerating chamber 3 to the cooler 7. Be prepared for. The freezing chamber return air passage 15 is provided with a freezing chamber return port 151 on the front side of the lower surface of the freezing chamber 2 (upper surface of the heat insulating partition wall 28), and is provided with a cooler chamber return port 152 on the lower front side of the cooler chamber 8. .. The refrigerating chamber return air passage 16 is provided with a refrigerating chamber return port 161 on the front side of the switching chamber 4 on the upper surface of the refrigerating chamber 3 (lower surface of the heat insulating partition wall 28), and the cooler chamber is on the lower front left side of the cooler chamber 8. A return port 162 is provided.
図３に示すように、冷蔵庫１に備えられる冷蔵室戻り口１６１は、扉２１と切替室扉４６との間に配置される。このようにすることで、切替室扉４６への食品等の収容物の挟み込みによって切替室扉４６が完全に閉じない場合であっても、切替室４から漏出した冷気を、扉２１と切替室扉４６との間に配置された冷蔵室戻り口１６１から冷蔵室戻り風路１６に流入させて、冷却器７を収容した冷却器室８に戻すことができる。これにより、切替室４から冷蔵室３への、特に冷蔵室３で食材を載置しやすい棚３５１，３５２，３５３側への漏出空気量を減らすことができ、冷蔵室３の冷え過ぎを抑制できる。
As shown in FIG. 3, the refrigerating room return port 161 provided in the refrigerator 1 is arranged between the door 21 and the switching room door 46. By doing so, even if the switching room door 46 is not completely closed due to the inclusion of food or the like in the switching room door 46, the cold air leaked from the switching room 4 can be removed from the door 21 and the switching room. It can flow into the refrigerating room return air passage 16 from the refrigerating room return port 161 arranged between the door 46 and returned to the cooler room 8 accommodating the cooler 7. As a result, it is possible to reduce the amount of air leaking from the switching room 4 to the refrigerating room 3, especially to the shelves 351, 352, 353 side where foodstuffs are easily placed in the refrigerating room 3, and it is possible to suppress overcooling of the refrigerating room 3. can.
また、切替室扉４６は、図３において二点鎖線で示す切替室扉４６のように、正面側に開けたときに冷蔵室戻り口１６１（貯蔵室戻り風路の吸込口）を覆うように回動可能に配置される。従って、開けた切替室扉４６は、冷蔵室３の開口と切替室４の開口との間であって冷蔵室３の内部に配置される。太実線矢印で示すように切替室扉４６を開けると、破線矢印で示すように開かれた切替室扉４６は、上面に備えられた冷蔵室戻り口１６１を塞ぐように位置する。このようにすることで、ファン９１の駆動停止により、重力によって比重の大きな冷気が冷蔵室戻り風路１６を逆流することを抑制できる。また、扉３１を開いたことで外気が冷蔵室３に流入しても、更に切替室扉４６が開かれることで外気の冷蔵室戻り風路１６への流入を抑制でき、冷蔵室戻り風路１６の内部での結露を抑制できる。
Further, the switching room door 46 covers the refrigerating room return port 161 (suction port of the storage room return air passage) when opened to the front side like the switching room door 46 shown by the alternate long and short dash line in FIG. Arranged rotatably. Therefore, the opened switching chamber door 46 is arranged inside the refrigerating chamber 3 between the opening of the refrigerating chamber 3 and the opening of the switching chamber 4. When the switching chamber door 46 is opened as shown by the thick solid line arrow, the switching chamber door 46 opened as shown by the broken line arrow is located so as to close the refrigerating chamber return port 161 provided on the upper surface. By doing so, it is possible to prevent the cold air having a large specific density from flowing back through the refrigerating chamber return air passage 16 due to gravity due to the drive stop of the fan 91. Further, even if the outside air flows into the refrigerating room 3 by opening the door 31, the inflow of the outside air into the refrigerating room return air passage 16 can be suppressed by further opening the switching room door 46, and the refrigerating room return air passage can be suppressed. It is possible to suppress dew condensation inside the 16.
冷蔵庫１は、切替室４の左側背面から冷凍室２の左側背面下部に延在し、切替室４から冷却器７に空気を戻す切替室戻り風路１７（内室戻り風路）を備える。切替室戻り風路１７、切替室送風路１４及び冷却器７を備えることで、切替室送風路１４によって切替室４に直接冷気を送風でき、切替室４の温度を素早く所望の温度に冷却できる。また、切替室戻り風路１７により、切替室４を冷却した空気が冷蔵室３に漏れることを抑制できるので、冷蔵室３を設定温度帯に維持でき、機能的で信頼性が高い冷蔵庫１を提供できる。
The refrigerator 1 extends from the left rear surface of the switching chamber 4 to the lower left rear surface of the freezing chamber 2, and includes a switching chamber return air passage 17 (inner chamber return air passage) for returning air from the switching chamber 4 to the cooler 7. By providing the switching chamber return air passage 17, the switching chamber air passage 14, and the cooler 7, cold air can be directly blown to the switching chamber 4 by the switching chamber air passage 14, and the temperature of the switching chamber 4 can be quickly cooled to a desired temperature. .. Further, since the air cooling the switching chamber 4 can be suppressed from leaking to the refrigerating chamber 3 by the switching chamber return air passage 17, the refrigerating chamber 3 can be maintained in the set temperature range, and the refrigerator 1 having high functionality and reliability can be maintained. Can be provided.
切替室戻り風路１７は、切替室４の背面壁である冷蔵室風路形成部材３００の内部に配置される。従って、切替室戻り風路１７と、上記冷蔵室戻り風路１６とは、異なる壁部材に配置される。このようにすることで、例えば切替室４が第２温度帯に設定される等、冷蔵室３の戻り空気の温度と切替室４の戻り空気の温度差が大きく異なっても、戻り空気同士の熱的な影響を相互に抑制できる。これにより、一方の戻り空気による他方の戻り空気の冷却に起因する霜の成長、結露発生等を抑制でき、冷蔵庫１の信頼性を向上できる。
The switching chamber return air passage 17 is arranged inside the refrigerating chamber air passage forming member 300, which is the back wall of the switching chamber 4. Therefore, the switching chamber return air passage 17 and the refrigerating chamber return air passage 16 are arranged on different wall members. By doing so, even if the temperature difference between the return air of the refrigerating chamber 3 and the return air of the switching chamber 4 is significantly different, for example, the switching chamber 4 is set to the second temperature zone, the return airs of each other The thermal effects can be mutually suppressed. As a result, it is possible to suppress the growth of frost, the generation of dew condensation, etc. caused by the cooling of the other return air by the return air of one, and the reliability of the refrigerator 1 can be improved.
特に、図示の例では、切替室戻り風路１７は、上下方向に延在する冷蔵室風路形成部材３００の内部に配置され、冷蔵室戻り風路１６は、前後方向に延在する断熱仕切壁２８の内部に配置される。このように配置することで、風路同士の間隔を長くでき、一方の戻り空気による他方の戻り空気の冷却に起因する霜の成長、結露発生等を抑制でき、冷蔵庫１の信頼性を向上できる。切替室戻り風路１７が断熱仕切壁２８の内部に配置され、冷蔵室戻り風路１６が冷蔵室風路形成部材３００の内部に配置されてもよい。
In particular, in the illustrated example, the switching chamber return air passage 17 is arranged inside the refrigerating chamber air passage forming member 300 extending in the vertical direction, and the refrigerating chamber return air passage 16 is a heat insulating partition extending in the front-rear direction. It is placed inside the wall 28. By arranging in this way, the distance between the air passages can be lengthened, frost growth, dew condensation, etc. caused by cooling of the other return air by one return air can be suppressed, and the reliability of the refrigerator 1 can be improved. .. The switching chamber return air passage 17 may be arranged inside the heat insulating partition wall 28, and the refrigerating chamber return air passage 16 may be arranged inside the refrigerating chamber air passage forming member 300.
本実施形態では、冷却器室８が断熱箱体１０の上側かつ背面側に位置しており、切替室４が冷蔵室３最上部で背面壁及び上面壁（断熱仕切壁２８側）に固定されて位置している。また、切替室４の正面側には、切替室扉４６の開閉のために或る程度、扉３１との間に寸法が確保される。このような事情があるため、冷蔵室戻り口１６１を切替室４の側方でなく正面側に設けることで、切替室４の側方寸法を大きくでき、内容積を確保しやすい。
In the present embodiment, the cooler chamber 8 is located on the upper side and the back side of the heat insulating box body 10, and the switching chamber 4 is fixed to the back wall and the upper surface wall (heat insulating partition wall 28 side) at the uppermost part of the refrigerating room 3. Is located. Further, on the front side of the switching chamber 4, a certain dimension is secured between the switching chamber 4 and the door 31 for opening and closing the switching chamber door 46. Due to such circumstances, by providing the refrigerating chamber return port 161 not on the side of the switching chamber 4 but on the front side, the lateral dimension of the switching chamber 4 can be increased, and it is easy to secure the internal volume.
切替室戻り風路１７は、何れも図４に示すように、切替室４の背面左側に切替室戻り口１７１を備える。また、冷却器室８の下部左側には、切替室戻り口１７１から冷却器室８に向かうと、冷却器室戻り口１７２、下方から上方に向かって戻り空気が流れる上昇部１７３、上方から下方に向かって戻り空気が流れる下降部１７４、が順に配置されている。これにより、ファン９１が停止した状態において、上方の冷却器室８内の密度が大きい低温空気が自然対流によって切替室戻り風路１７を介して下方の切替室４に流下し難くなり、切替室４の冷え過ぎを抑制できる。
As shown in FIG. 4, each of the switching chamber return air passages 17 is provided with a switching chamber return port 171 on the left side of the back surface of the switching chamber 4. Further, on the lower left side of the cooler chamber 8, when the switching chamber return port 171 is directed toward the cooler chamber 8, the cooler chamber return port 172, the rising portion 173 where the return air flows from the lower side to the upper side, and the upper side to the lower side. The descending portions 174, through which the return air flows toward, are arranged in order. As a result, when the fan 91 is stopped, it becomes difficult for the high-density low-temperature air in the upper cooler chamber 8 to flow down to the lower switching chamber 4 through the switching chamber return air passage 17 due to natural convection, and the switching chamber becomes difficult. It is possible to suppress the overcooling of 4.
冷蔵庫１は、冷却器７の下方の冷却器室８内に、冷却器７に成長した霜を解かす除霜ヒータ１８を備える。霜が解けて生成した水は、樋（不図示）に流下し、排水口（不図示）から排水管（不図示）を介して断熱箱体１０の背面側下部に形成される機械室５に至る。冷蔵庫１は、機械室５内に、圧縮機２４と、排水管からの水を貯める蒸発皿（不図示）とを備える。除霜によって排水管から排水されて蒸発皿に貯まった水は、圧縮機２４の発熱等により蒸発する。
The refrigerator 1 includes a defrosting heater 18 for defrosting the frost grown in the cooler 7 in the cooler chamber 8 below the cooler 7. The water generated by melting the frost flows down to a gutter (not shown), and flows from the drain port (not shown) to the machine room 5 formed in the lower part on the back side of the heat insulating box 10 via the drain pipe (not shown). To reach. The refrigerator 1 includes a compressor 24 and an evaporating dish (not shown) for storing water from a drain pipe in the machine room 5. The water drained from the drain pipe by defrosting and stored in the evaporating dish evaporates due to heat generation of the compressor 24 or the like.
冷蔵庫１は、切替室４の下部右側に、外郭４５（図９）から延びる電力コネクタ４５８（図９）に接続されるコネクタ収納部４２４を備える。
The refrigerator 1 is provided with a connector storage unit 424 connected to a power connector 458 (FIG. 9) extending from the outer shell 45 (FIG. 9) on the lower right side of the switching chamber 4.
冷蔵庫１は、切替室４の設定、及び、上記センサによる検出値に基づいて、圧縮機２４の運転状態、何れも後記する冷蔵室ダンパ１０５及び切替室ダンパ１０６の開閉状態、ファン９１，９２の駆動状態、ヒータ８２，４６２（図１９）の通電状態、除霜ヒータ１８の通電状態を制御する運転制御装置（不図示）を備える。
The refrigerator 1 is based on the setting of the switching chamber 4 and the operating state of the compressor 24, both of which are the open / closed states of the refrigerating chamber damper 105 and the switching chamber damper 106 described later, and the fans 91 and 92. An operation control device (not shown) for controlling the drive state, the energized state of the heaters 82 and 462 (FIG. 19), and the energized state of the defrost heater 18 is provided.
運転制御装置は、いずれも図示はしないが、例えばＣＰＵ（Central Processing Unit）、ＲＡＭ（Random Access Memory）、ＲＯＭ（Read Only Memory）、Ｉ／Ｆ（インターフェイス）等を備えて構成される。運転制御装置は、ＲＯＭに格納されている所定の制御プログラムがＲＡＭに展開され、ＣＰＵによって実行されることで、具現化される。
Although not shown, the operation control device includes, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), an I / F (interface), and the like. The operation control device is embodied when a predetermined control program stored in the ROM is expanded in the RAM and executed by the CPU.
運転制御装置は、冷蔵庫１の運転モードである冷凍室運転、冷凍冷蔵室運転、冷凍冷蔵切替室運転、又は冷凍切替室運転の何れかの運転に対応した制御を行う。例えば運転制御装置は、冷凍室２の時間平均温度が例えば－１８℃程度、冷蔵室３の時間平均温度が例えば３℃程度に制御されるとともに切替室４が設定状態（第１温度帯又は第２温度帯）に基づく所定の温度帯に制御される。
The operation control device controls the operation corresponding to any of the freezing room operation, the freezing / refrigerating room operation, the freezing / refrigerating switching room operation, and the freezing / refrigerating switching room operation, which are the operation modes of the refrigerator 1. For example, in the operation control device, the time average temperature of the freezing chamber 2 is controlled to, for example, about -18 ° C, the time average temperature of the refrigerating chamber 3 is controlled to, for example, about 3 ° C, and the switching chamber 4 is in a set state (first temperature zone or first temperature zone or first). It is controlled to a predetermined temperature zone based on 2 temperature zones).
具体的には、運転制御装置は、切替室４の設定温度帯、及び切替室温度センサ４３１の検出値に基づいて、切替室ダンパ１０６の開度を調整する。切替室４が例えば第１温度帯に設定された場合、運転制御装置は、切替室温度センサ４３１の検出値に基づき、例えば切替室ダンパ１０６の開時間を短くして切替室４内への送風量を減少させ、温度調整を行う。切替室４が例えば第１温度帯に設定された場合、運転制御装置は、切替室温度センサ４３１の検出値に基づき、例えば切替室ダンパ１０６の開時間を長くして切替室４内への送風量を増加させ温度調整を行う。温度調整は、切替室ダンパ１０６の開時間調整ではなく、開度調整（開閉板の開角度の増減）によって送風量を調整してもよい。他にも、第２温度帯設定時の送風量よりも第１温度帯設定時の送風量を少なくできれば、他の方法でもよい。
Specifically, the operation control device adjusts the opening degree of the switching chamber damper 106 based on the set temperature zone of the switching chamber 4 and the detection value of the switching chamber temperature sensor 431. When the switching chamber 4 is set to, for example, the first temperature zone, the operation control device shortens the opening time of the switching chamber damper 106, for example, based on the detection value of the switching chamber temperature sensor 431, and sends the switching chamber 4 into the switching chamber 4. Reduce the air volume and adjust the temperature. When the switching chamber 4 is set to, for example, the first temperature zone, the operation control device increases the opening time of the switching chamber damper 106, for example, based on the detection value of the switching chamber temperature sensor 431 and sends the switching chamber 4 into the switching chamber 4. Increase the air volume and adjust the temperature. The temperature may be adjusted by adjusting the opening degree (increasing or decreasing the opening angle of the opening / closing plate) instead of adjusting the opening time of the switching chamber damper 106. In addition, other methods may be used as long as the amount of air blown when the first temperature zone is set can be made smaller than the amount of air blown when the second temperature zone is set.
切替室４の第１温度帯設定時には、例えば庫外温度が所定温度より低い場合（例えば１０℃以下）、運転制御装置は、切替室４の底面のヒータ８２（図１９）に通電することで、切替室４の温度が低下しすぎないように制御する。さらに、切替室４の第２温度帯設定時には、運転制御装置は、切替室扉４６の正面側の温度を上げるヒータ４６２（図１９）に通電することで、切替室扉４６の冷蔵室３側の表面を加温して結露を抑制するように制御する。
When the first temperature zone of the switching chamber 4 is set, for example, when the outside temperature is lower than the predetermined temperature (for example, 10 ° C. or lower), the operation control device energizes the heater 82 (FIG. 19) on the bottom surface of the switching chamber 4. , The temperature of the switching chamber 4 is controlled so as not to drop too much. Further, when the second temperature zone of the switching chamber 4 is set, the operation control device energizes the heater 462 (FIG. 19) that raises the temperature on the front side of the switching chamber door 46, so that the refrigerating chamber 3 side of the switching chamber door 46 is energized. The surface of the door is heated and controlled to suppress dew condensation.
図７は、風路構成及び冷凍サイクル構成の説明図である。冷蔵庫１は冷凍サイクル１００を備える。冷凍サイクル１００は、圧縮機２４と、断熱箱体１０の外表面を形成する外箱１０１（図３）の内面に接するように配置された放熱機構である放熱配管２５と、減圧機構であるキャピラリチューブ２６と、冷却器７とを冷媒配管（不図示）で接続することで構成される。冷凍サイクル１００は、キャピラリチューブ２６と冷却器７から圧縮機２４に至る冷媒配管とが熱交換可能に接触した内部熱交換部８０を備える。
FIG. 7 is an explanatory diagram of an air passage configuration and a refrigeration cycle configuration. Refrigerator 1 includes a refrigeration cycle 100. The refrigerating cycle 100 includes a compressor 24, a heat dissipation pipe 25 which is a heat dissipation mechanism arranged so as to be in contact with the inner surface of an outer box 101 (FIG. 3) forming an outer surface of the heat insulating box 10, and a capillary which is a decompression mechanism. The tube 26 and the cooler 7 are connected by a refrigerant pipe (not shown). The refrigeration cycle 100 includes an internal heat exchange unit 80 in which the capillary tube 26 and the refrigerant pipe from the cooler 7 to the compressor 24 are in heat exchangeable contact with each other.
圧縮機２４が駆動することで圧縮されて高温高圧となった冷媒は、放熱配管２５を流れることで放熱して、キャピラリチューブ２６を流れることで圧力が下がり低温低圧の冷媒となり、冷却器７に至って空気を冷却し、冷気を生成する。冷却器７を出た冷媒は、内部熱交換部８０でキャピラリチューブ２６と熱交換して温度が上昇して、圧縮機２４に戻る。
The refrigerant compressed by the compressor 24 to become high temperature and high pressure dissipates heat by flowing through the heat dissipation pipe 25, and the pressure drops by flowing through the capillary tube 26 to become a low temperature and low pressure refrigerant, and becomes a cooler 7. It cools the air and produces cold air. The refrigerant leaving the cooler 7 exchanges heat with the capillary tube 26 in the internal heat exchange unit 80, the temperature rises, and the refrigerant returns to the compressor 24.
冷蔵庫１は、圧縮機２４が駆動状態、ファン９１が駆動状態、ファン９２が停止状態、冷蔵室ダンパ１０５が閉鎖状態、切替室ダンパ１０６が閉鎖状態の冷凍室運転を実行する。冷凍室運転では、冷却器室８での冷却器７との熱交換により生成した冷気は、ファン９１の駆動によって冷凍室送風路１１及び冷凍室吐出口１１１，１１２，１１３を流れて冷凍室２が冷却される。冷凍室２を冷却した空気は、冷凍室戻り口１５１から冷凍室戻り風路１５に入り、冷却器室戻り口１５２から冷却器室８に戻る。
The refrigerator 1 executes a freezing room operation in which the compressor 24 is in the driving state, the fan 91 is in the driving state, the fan 92 is in the stopped state, the refrigerating room damper 105 is in the closed state, and the switching room damper 106 is in the closed state. In the freezer chamber operation, the cold air generated by the heat exchange with the cooler 7 in the cooler chamber 8 flows through the freezer chamber air passage 11 and the freezer chamber discharge ports 111, 112, 113 by the drive of the fan 91, and the freezer chamber 2 Is cooled. The air that has cooled the freezing chamber 2 enters the freezing chamber return air passage 15 from the freezing chamber return port 151, and returns to the cooler chamber 8 from the cooler chamber return port 152.
冷蔵庫１は、圧縮機２４が駆動状態、ファン９１，９２が駆動状態、冷蔵室ダンパ１０５が開放状態、切替室ダンパ１０６が閉鎖状態の冷凍冷蔵室運転を実行する。冷凍冷蔵室運転は、例えば切替室４を冷却し過ぎた場合に行われ、冷凍室２及び冷蔵室３には送風し、切替室４には送風しない運転である。
The refrigerator 1 executes the freezing / refrigerating room operation in which the compressor 24 is in the driving state, the fans 91 and 92 are in the driving state, the refrigerating room damper 105 is in the open state, and the switching room damper 106 is in the closed state. The freezing / refrigerating room operation is performed, for example, when the switching room 4 is cooled too much, and is an operation in which air is blown to the freezing room 2 and the refrigerating room 3 but not to the switching room 4.
冷凍冷蔵室運転では、冷却器室８での冷却器７との熱交換により生成した冷気は、ファン９１の駆動によって冷凍室送風路１１及び冷凍室吐出口１１１，１１２，１１３を流れて冷凍室２が冷却される。冷凍室２を冷却した空気は、冷凍室戻り口１５１から冷凍室戻り風路１５に入り、冷却器室戻り口１５２から冷却器室８に戻る。
In the freezing / refrigerating room operation, the cold air generated by the heat exchange with the cooler 7 in the cooler room 8 flows through the freezing room air passage 11 and the freezing room discharge ports 111, 112, 113 by the drive of the fan 91 to the freezing room. 2 is cooled. The air that has cooled the freezing chamber 2 enters the freezing chamber return air passage 15 from the freezing chamber return port 151, and returns to the cooler chamber 8 from the cooler chamber return port 152.
また、冷却器７により生成した冷気は、ファン９２の駆動により、冷蔵室切替室送風路１２、開放された冷蔵室ダンパ１０５、冷蔵室送風路１３及び冷蔵室吐出口１３１，１３２，１３３を介して冷蔵室３に流れて、冷蔵室３が冷却される。冷蔵室３を冷却した空気は、冷蔵室戻り口１６１から冷蔵室戻り風路１６に入り、冷却器室戻り口１６２から冷却器室８に戻る。
Further, the cold air generated by the cooler 7 is driven by the fan 92 through the refrigerating room switching chamber air passage 12, the open refrigerating room damper 105, the refrigerating room air passage 13, and the refrigerating room discharge ports 131, 132, 133. It flows into the refrigerating chamber 3 and the refrigerating chamber 3 is cooled. The air that has cooled the refrigerating chamber 3 enters the refrigerating chamber return air passage 16 from the refrigerating chamber return port 161 and returns to the cooler chamber 8 from the cooler chamber return port 162.
冷蔵庫１は、圧縮機２４が駆動状態、ファン９１，９２が駆動状態、冷蔵室ダンパ１０５が開放状態、切替室ダンパ１０６が開放状態の冷凍冷蔵切替室運転を実行する。冷凍冷蔵切替室運転は、例えば少ない送風量による切替室４の第１温度帯（例えば冷蔵）での運転、及び、多い送風量による切替室４の第２温度帯（例えば冷凍）での運転を含む。送風量の制御は、切替室ダンパ１０６の開度調整により実行できる。
The refrigerator 1 executes the freezing / refrigerating switching chamber operation in which the compressor 24 is in the driving state, the fans 91 and 92 are in the driving state, the refrigerating chamber damper 105 is in the open state, and the switching chamber damper 106 is in the open state. The freezing / refrigerating switching room operation is, for example, an operation in the first temperature zone (for example, refrigeration) of the switching chamber 4 with a small amount of air blow, and an operation in the second temperature zone (for example, freezing) of the switching room 4 with a large amount of air blown. include. The amount of air blown can be controlled by adjusting the opening degree of the switching chamber damper 106.
冷凍冷蔵切替室運転では、冷却器室８での冷却器７との熱交換により生成した冷気は、ファン９１の駆動によって冷凍室送風路１１及び冷凍室吐出口１１１，１１２，１１３を流れて冷凍室２が冷却される。冷凍室２を冷却した空気は、冷凍室戻り口１５１から冷凍室戻り風路１５に入り、冷却器室戻り口１５２から冷却器室８に戻る。
In the freezing / refrigerating switching chamber operation, the cold air generated by the heat exchange with the cooler 7 in the cooler chamber 8 flows through the freezing chamber air passage 11 and the freezing chamber discharge ports 111, 112, 113 by the drive of the fan 91 to freeze. Room 2 is cooled. The air that has cooled the freezing chamber 2 enters the freezing chamber return air passage 15 from the freezing chamber return port 151, and returns to the cooler chamber 8 from the cooler chamber return port 152.
また、冷却器７により生成した冷気はファン９１，９２の駆動により、冷蔵室切替室送風路１２、開放された冷蔵室ダンパ１０５、冷蔵室送風路１３及び冷蔵室吐出口１３１，１３２，１３３を介して冷蔵室３に流れて、冷蔵室３が冷却される。冷蔵室３を冷却した空気は、冷蔵室戻り口１６１から冷蔵室戻り風路１６に入り、冷却器室戻り口１６２から冷却器室８に戻る。
Further, the cold air generated by the cooler 7 is driven by the fans 91 and 92 to provide the refrigerating chamber switching chamber air passage 12, the open refrigerating chamber damper 105, the refrigerating chamber air passage 13, and the refrigerating chamber discharge ports 131, 132, 133. It flows to the refrigerating chamber 3 through the refrigerator chamber 3 and is cooled. The air that has cooled the refrigerating chamber 3 enters the refrigerating chamber return air passage 16 from the refrigerating chamber return port 161 and returns to the cooler chamber 8 from the cooler chamber return port 162.
さらに、冷却器７により生成した冷気は、ファン９１，９２の駆動により、開放された切替室ダンパ１０６、切替室送風路１４及び切替室吐出口１４１を介して切替室４に流れて、切替室４が冷却される。切替室４を冷却した空気は、切替室戻り口１７１から切替室戻り風路１７に入り、冷却器室戻り口１７２から冷却器室８に戻る。
Further, the cold air generated by the cooler 7 flows to the switching chamber 4 through the opening switching chamber damper 106, the switching chamber air passage 14 and the switching chamber discharge port 141 by driving the fans 91 and 92, and flows into the switching chamber 4. 4 is cooled. The air that has cooled the switching chamber 4 enters the switching chamber return air passage 17 from the switching chamber return port 171 and returns to the cooler chamber 8 from the cooler chamber return port 172.
冷蔵庫１は、圧縮機２４が駆動状態、ファン９１が駆動状態、ファン９２が停止状態、冷蔵室ダンパ１０５が閉鎖状態、切替室ダンパ１０６が開放状態の冷凍切替室運転を実行する。冷凍切替室運転は、例えば冷蔵室３を冷却し過ぎた場合に行われ冷凍室２及び切替室４には送風し、冷蔵室３には送風しない運転である。
The refrigerator 1 executes the refrigerating switching room operation in which the compressor 24 is in the driving state, the fan 91 is in the driving state, the fan 92 is in the stopped state, the refrigerating room damper 105 is in the closed state, and the switching room damper 106 is in the open state. The freezing switching room operation is performed, for example, when the refrigerating room 3 is cooled too much, and is an operation in which air is blown to the freezing room 2 and the switching room 4 but not to the refrigerating room 3.
冷凍切替室運転では、冷却器室８での冷却器７との熱交換により生成した冷気は、ファン９１の駆動によって冷凍室送風路１１及び冷凍室吐出口１１１，１１２，１１３を流れて冷凍室２が冷却される。冷凍室２を冷却した空気は、冷凍室戻り口１５１から冷凍室戻り風路１５に入り、冷却器室戻り口１５２から冷却器室８に戻る。
In the refrigerating switching chamber operation, the cold air generated by the heat exchange with the cooler 7 in the cooling chamber 8 flows through the refrigerating chamber air passage 11 and the refrigerating chamber discharge ports 111, 112, 113 by the drive of the fan 91 to the refrigerating chamber. 2 is cooled. The air that has cooled the freezing chamber 2 enters the freezing chamber return air passage 15 from the freezing chamber return port 151, and returns to the cooler chamber 8 from the cooler chamber return port 152.
また、冷却器７により生成した冷気は、ファン９１の駆動により、冷蔵室切替室送風路１２、開放された切替室ダンパ１０６、切替室送風路１４及び切替室吐出口１４１を介して切替室４に流れて、切替室４が冷却される。切替室４を冷却した空気は、切替室戻り口１７１から切替室戻り風路１７に入り、冷却器室戻り口１７２から冷却器室８に戻る。
Further, the cold air generated by the cooler 7 is driven by the fan 91 through the refrigerating chamber switching chamber air passage 12, the open switching chamber damper 106, the switching chamber air passage 14, and the switching chamber discharge port 141. The switching chamber 4 is cooled. The air that has cooled the switching chamber 4 enters the switching chamber return air passage 17 from the switching chamber return port 171 and returns to the cooler chamber 8 from the cooler chamber return port 172.
図８は、図１のＢ－Ｂ線断面における切替室４の構成を表す部分断面分解斜視図である。切替室４は、切替室４の内部に、上面、両側面、背面及び底面を箱状に形成した外郭４５を備え、外郭４５の正面側は開口する。当該開口は、外郭４５に回動可能に固定され、開閉可能な切替室扉４６により閉塞される。外郭４５の内部には、背面側の切替室吐出口１４１及び開口４８１（吐出口）を通じて冷気が吐出される。野菜等の収容物を当該開口を通じて外郭４５に収容することで、切替室４に収容物が収容される。切替室扉４６を備える外郭４５を備えることで、冷蔵室３と切替室４とが大きく異なる温度帯であっても、切替室４の冷気が冷蔵室３に漏出することを抑制できる。これにより、冷気の漏出に起因した冷蔵室３の冷え過ぎを抑制でき、冷蔵庫１の信頼性を向上できる。
FIG. 8 is a partially cross-sectional exploded perspective view showing the configuration of the switching chamber 4 in the BB line cross section of FIG. 1. The switching chamber 4 is provided with an outer shell 45 having a box-shaped upper surface, both side surfaces, a back surface, and a bottom surface inside the switching chamber 4, and the front side of the outer shell 45 is open. The opening is rotatably fixed to the outer shell 45 and closed by an openable / closable switching chamber door 46. Cold air is discharged to the inside of the outer shell 45 through the switching chamber discharge port 141 and the opening 481 (discharge port) on the back side. By accommodating the contained items such as vegetables in the outer shell 45 through the opening, the contained items are accommodated in the switching chamber 4. By providing the outer shell 45 provided with the switching chamber door 46, it is possible to prevent the cold air of the switching chamber 4 from leaking to the refrigerating chamber 3 even in a temperature zone in which the refrigerating chamber 3 and the switching chamber 4 are significantly different from each other. As a result, it is possible to suppress overcooling of the refrigerating chamber 3 due to leakage of cold air, and it is possible to improve the reliability of the refrigerator 1.
切替室扉４６は、外郭４５の正面側の開口を閉塞するように、外郭４５の上面の前縁部の左右端の２か所において、回動軸４５０（図１２Ｃ）を軸中心に回動可能に配置される。
The switching chamber door 46 rotates about the rotation shaft 450 (FIG. 12C) at two positions on the left and right ends of the leading edge of the upper surface of the outer shell 45 so as to close the opening on the front side of the outer shell 45. Arranged as possible.
切替室４は、更に、外郭４５に収容される切替室容器４４（容器）を備え、切替室容器４４は、外郭４５の正面側の開口を通じて出し入れ可能な例えば引き出し式である。切替室容器４４は、切替室扉４６を閉じたときに外郭４５の外部（例えば正面側の下方）に露出するとともに例えば正面側に張り出した取っ手４４３を備える。切替室容器４４は、取っ手４４３が正面側に引っ張られることで切替室扉４６が開いて切替室容器４４が引き出されるように構成される。このようにすることで、取っ手４４３を掴んだ引き出し及び押し込みにより切替室容器４４を出し入れ及び切替室扉４６を開閉できる。
The switching chamber 4 further includes a switching chamber container 44 (container) housed in the outer shell 45, and the switching chamber container 44 is, for example, a drawer type that can be taken in and out through the opening on the front side of the outer shell 45. The switching chamber container 44 includes a handle 443 that is exposed to the outside of the outer shell 45 (for example, below the front side) when the switching chamber door 46 is closed, and for example, a handle 443 that projects to the front side. The switching chamber container 44 is configured so that the switching chamber door 46 opens and the switching chamber container 44 is pulled out when the handle 443 is pulled toward the front side. By doing so, the switching chamber container 44 can be taken in and out and the switching chamber door 46 can be opened and closed by pulling out and pushing the handle 443.
主に図９～図１４を参照しながら外郭４５の構造を説明し、主に図１５及び図１６を参照しながら切替室容器４４の構造を説明する。
The structure of the outer shell 45 will be described mainly with reference to FIGS. 9 to 14, and the structure of the switching chamber container 44 will be described mainly with reference to FIGS. 15 and 16.
図９は、外郭４５の外観斜視図である。外郭４５は、内部側面に、切替室容器４４（図８）の挿入時にガイドする上ガイドレール４９２及び下ガイドレール４９３を備える。詳細は後記するが、切替室容器４４の外側側面に備えられたガイドレール４４９（図１５）が上ガイドレール４９２と下ガイドレール４９３との間に挿入されることで、切替室容器４４を外郭４５の内部に収容できる。
FIG. 9 is an external perspective view of the outer shell 45. The outer shell 45 is provided with an upper guide rail 492 and a lower guide rail 493 for guiding when the switching chamber container 44 (FIG. 8) is inserted on the inner side surface. Details will be described later, but the guide rail 449 (FIG. 15) provided on the outer side surface of the switching chamber container 44 is inserted between the upper guide rail 492 and the lower guide rail 493 to outer the switching chamber container 44. It can be accommodated inside 45.
下ガイドレール４９３は、正面側端部に、凸部４６０を備える。凸部４６０を備えることで、切替室容器４４を引き出したときに、ガイドレール４４９の下方に向かうストッパとしての凸部４４４（図１５）が突き当たり、切替室容器４４の正面方向への移動が規制される。使用者は、切替室容器４４を持ち上げたり取っ手４４３を把持して斜め上前に向けて力を与えることで切替室容器４４を傾ければ、凸部４４４での規制を回避して切替室容器４４を外郭４５から取り出すこともできる。こうすると、切替室容器４４に収納された食材をすべて同時に取り出すことができるから、特に、切替室４の設定温度帯を変える場合の食材の配置し直しを効果的に行うことができる。また、上方向に持ち上げたり（斜め）上前に傾けなければ切替室容器４４を外郭４５から取り出せないため、下方が空間である切替室容器４４が意図せず脱落して落下することを抑制できる。
The lower guide rail 493 is provided with a convex portion 460 at the front side end portion. By providing the convex portion 460, when the switching chamber container 44 is pulled out, the convex portion 444 (FIG. 15) as a downward stopper of the guide rail 449 abuts, and the movement of the switching chamber container 44 in the front direction is restricted. Will be done. If the user tilts the switching chamber container 44 by lifting the switching chamber container 44 or grasping the handle 443 and applying a force diagonally upward and forward, the user can avoid the restriction on the convex portion 444 and apply the switching chamber container. The 44 can also be taken out from the outer shell 45. By doing so, all the foodstuffs stored in the switching chamber container 44 can be taken out at the same time, so that the foodstuffs can be effectively rearranged especially when the set temperature zone of the switching chamber 4 is changed. Further, since the switching chamber container 44 cannot be taken out from the outer shell 45 unless it is lifted upward (diagonally) or tilted upward (diagonally), it is possible to prevent the switching chamber container 44, which has a space below, from unintentionally falling off and falling. ..
外郭４５は、外郭４５の外側上面から立設する補強部材４５５を備える。補強部材４５５は、図示の例では上面視で格子状に立設した壁、リブ等であるが、これに限られない。補強部材４５５により、外郭４５の剛性を向上できる。外郭４５は、左右外側面に、前後方向に延在するガイドレール４５２を備える。ガイドレール４５２を、切替室４の内側左右側面に前後方向に延在して備えられた段部４５７（図２０）に載置して挿入することで、切替室４の内部に外郭４５を配置できる。
The outer shell 45 includes a reinforcing member 455 erected from the outer upper surface of the outer shell 45. In the illustrated example, the reinforcing member 455 is a wall, a rib, or the like erected in a grid pattern in a top view, but the reinforcing member 455 is not limited to this. The reinforcing member 455 can improve the rigidity of the outer shell 45. The outer shell 45 is provided with a guide rail 452 extending in the front-rear direction on the left and right outer surfaces. The outer shell 45 is arranged inside the switching chamber 4 by mounting the guide rail 452 on the stepped portion 457 (FIG. 20) provided so as to extend in the front-rear direction on the left and right side surfaces inside the switching chamber 4. can.
外郭４５の上面には電源ケーブル４６８が配置され、電源ケーブル４６８は、切替室扉４６を加熱するヒータ４６２（図１０）に接続される。ヒータ４６２について、切替室扉４６の構造を説明しながら説明する。
A power cable 468 is arranged on the upper surface of the outer shell 45, and the power cable 468 is connected to a heater 462 (FIG. 10) for heating the switching chamber door 46. The heater 462 will be described while explaining the structure of the switching chamber door 46.
図１０は、切替室扉４６の分解斜視図である。切替室扉４６は、正面側から背面側に向かって、樹脂製の外面部材４６１と、ヒータ４６２と、発泡ポリウレタン又はポリスチレンフォーム等の断熱材４６３と、樹脂製の内面部材４６４と、ガスケット（パッキン）４６５とを備える。外面部材４６１と内面部材４６４とは嵌合可能に構成され、これらの間にヒータ４６２及び断熱材４６３が挟持される。内面部材４６４の左右両端には、正面側から背面側に向かって窄まる凸部４８３を備える。凸部４８３の機能は図１７及び図１８を参照して後記する。ガスケット４６５は枠状に構成され、内面部材４６４の外縁に沿って配置される。ガスケット４６５により、切替室扉４６を閉じた時に外郭４５（図９）の内部の気密性を向上できる。
FIG. 10 is an exploded perspective view of the switching chamber door 46. The switching chamber door 46 has a resin outer surface member 461, a heater 462, a heat insulating material 463 such as foamed polyurethane or polystyrene foam, a resin inner surface member 464, and a gasket (packing) from the front side to the back side. ) 465. The outer surface member 461 and the inner surface member 464 are configured to be matable, and the heater 462 and the heat insulating material 463 are sandwiched between them. The left and right ends of the inner surface member 464 are provided with convex portions 483 that narrow from the front side to the back side. The function of the convex portion 483 will be described later with reference to FIGS. 17 and 18. The gasket 465 is configured in a frame shape and is arranged along the outer edge of the inner surface member 464. The gasket 465 can improve the airtightness inside the outer shell 45 (FIG. 9) when the switching chamber door 46 is closed.
ヒータ４６２は、断熱材４６３よりも冷蔵室３（図３）側及び冷蔵室戻り口１６１（図３）側に設けられ、外面部材４６１と断熱材４６３との間に配置される。これにより、外面部材４６１の正面側の面（冷蔵室３を臨む面）を加熱でき、切替室４が内部に配置された冷蔵室３と、切替室４との温度差が大きくなっても切替室扉４６への結露を抑制できる。上述した別実施形態のように切替室４を冷凍室２内に配置する場合には、ヒータ４６２は、これに代えて、断熱材４６３と内面部材４６４との間、即ち、断熱材４６３よりも切替室４側に設けられることが好ましい。
The heater 462 is provided on the refrigerating chamber 3 (FIG. 3) side and the refrigerating chamber return port 161 (FIG. 3) side with respect to the heat insulating material 463, and is arranged between the outer surface member 461 and the heat insulating material 463. As a result, the surface on the front side of the outer surface member 461 (the surface facing the refrigerating chamber 3) can be heated, and switching is performed even if the temperature difference between the refrigerating chamber 3 in which the switching chamber 4 is arranged and the switching chamber 4 becomes large. Condensation on the room door 46 can be suppressed. When the switching chamber 4 is arranged in the freezing chamber 2 as in the other embodiment described above, the heater 462 is instead used between the heat insulating material 463 and the inner surface member 464, that is, rather than the heat insulating material 463. It is preferably provided on the switching chamber 4 side.
ヒータ４６２は、例えば電気ヒータであり、切替室扉４６の表面に沿って配置された電熱線４７３（例えばシリコンコードヒータ）を備える。ヒータ４６２は、電熱線４７３とヒータ４６２の電源とを接続する電源ケーブル４６８（図９）に接続され、電源からの電力供給により発熱し、切替室扉４６を加熱できる。電源は、例えば冷蔵庫１を駆動させる電源と共用の電源である。ヒータ４６２は、例えば、電熱線４７３とアルミニウム箔（不図示）とを両面粘着テープの一面で固定し、両面粘着テープの他面を加熱面（図示の例では正面側）に貼付可能としたアルミニウム箔ヒータである。
The heater 462 is, for example, an electric heater and includes a heating wire 473 (for example, a silicon cord heater) arranged along the surface of the switching chamber door 46. The heater 462 is connected to a power cable 468 (FIG. 9) connecting the heating wire 473 and the power supply of the heater 462, generates heat by supplying power from the power supply, and can heat the switching chamber door 46. The power source is, for example, a power source shared with a power source for driving the refrigerator 1. In the heater 462, for example, the heating wire 473 and the aluminum foil (not shown) are fixed on one side of the double-sided adhesive tape, and the other side of the double-sided adhesive tape can be attached to the heating surface (front side in the illustrated example). It is a foil heater.
電熱線４７３は、一方の端部に正極端子４７１を備え、他方の端部に負極端子４７２を備える。図示の例では、正極端子４７１は右側端部に備えられ、負極端子４７２は左側端部に備えられる。図示の例では、正極端子４７１及び負極端子４７２が電源ケーブル４６８（図９）に接続される。電熱線４７３は、図示の例では、同一面内において、矩形状の外面部材４６１の各四辺に沿って左右方向又は上下方向に連続的に蛇行して配置され、これにより、切替室扉４６の全面を満遍なく加熱できる。
The heating wire 473 includes a positive electrode terminal 471 at one end and a negative electrode terminal 472 at the other end. In the illustrated example, the positive electrode terminal 471 is provided at the right end and the negative electrode terminal 472 is provided at the left end. In the illustrated example, the positive electrode terminal 471 and the negative electrode terminal 472 are connected to the power cable 468 (FIG. 9). In the illustrated example, the heating wire 473 is arranged to meander continuously in the left-right direction or the up-down direction along each four side of the rectangular outer surface member 461 in the same plane, whereby the switching chamber door 46 is arranged. The entire surface can be heated evenly.
図１１は、外郭４５に切替室扉４６を取り付けた状態を示す正面側からの外観斜視図である。電源ケーブル４６８は、正極ケーブル４６６及び負極ケーブル４６７を含む。正極ケーブル４６６は、切替室扉４６の内部に配置された正極端子４７１（図１０）に接続され、負極ケーブル４６７は、切替室扉４６の内部に配置された負極端子４７２（図１０）に接続される。正極ケーブル４６６及び負極ケーブル４６７は、外郭４５の上面において背面側で一本に束ねられ、外郭４５の外側背面壁を下降し、電力コネクタ４５８（図８）に接続される。
FIG. 11 is an external perspective view showing a state in which the switching chamber door 46 is attached to the outer shell 45 from the front side. The power cable 468 includes a positive electrode cable 466 and a negative electrode cable 467. The positive electrode cable 466 is connected to the positive electrode terminal 471 (FIG. 10) arranged inside the switching chamber door 46, and the negative electrode cable 467 is connected to the negative electrode terminal 472 (FIG. 10) arranged inside the switching chamber door 46. Will be done. The positive electrode cable 466 and the negative electrode cable 467 are bundled together on the back surface side on the upper surface of the outer shell 45, descend the outer back wall of the outer shell 45, and are connected to the power connector 458 (FIG. 8).
電源ケーブル４６８（図示の例では正極ケーブル４６６及び負極ケーブル４６７）は、補強部材４５５の上端４５６よりも低い位置を這うようにして外郭４５の上面に配置されており、補強部材４５５は電源ケーブル４６８が這わされる空間を確保するように部分的に途切れている又は高さが低くされている。例えば冷蔵庫１の正面視で電源ケーブル４６８の高さは、例えば正面視で補強部材４５５の高さよりも低い。従って、電源ケーブル４６８は、補強部材４５５における上端４５６（外郭４５から離れた側の端部）よりも外郭４５側を這うようにして外郭４５の外面側に配置される。電源ケーブル４６８を外郭４５の上面に配置することで、外郭４５の左右側方での電源ケーブル４６８の占有体積を考慮しなくてよく、外郭４５の内部の左右の内寸を広く確保できる。また、電源ケーブル４６８を補強部材４５５の上端４５６よりも低い位置に配置することで、電源ケーブル４６８が潰れることを抑制できる。
The power cable 468 (positive electrode cable 466 and negative electrode cable 467 in the illustrated example) is arranged on the upper surface of the outer shell 45 so as to crawl below the upper end 456 of the reinforcing member 455, and the reinforcing member 455 is arranged on the upper surface of the outer shell 45. Partially interrupted or lowered to ensure space for crawling. For example, the height of the power cable 468 in the front view of the refrigerator 1 is lower than the height of the reinforcing member 455 in the front view, for example. Therefore, the power cable 468 is arranged on the outer surface side of the outer shell 45 so as to crawl on the outer shell 45 side from the upper end 456 (the end on the side away from the outer shell 45) of the reinforcing member 455. By arranging the power cable 468 on the upper surface of the outer shell 45, it is not necessary to consider the occupied volume of the power cable 468 on the left and right sides of the outer shell 45, and the left and right inner dimensions of the inside of the outer shell 45 can be widely secured. Further, by arranging the power cable 468 at a position lower than the upper end 456 of the reinforcing member 455, it is possible to prevent the power cable 468 from being crushed.
図１２Ａは、外郭４５及び切替室扉４６の側面図である。外郭４５の上面を這う電源ケーブル４６８は、外郭４５の正面側で外郭４５の側方に降り、カバー部材４７０の内部を通り、切替室扉４６の内部に向かう。図示の例では、正極ケーブル４６６は、外郭４５の正面側で右側方に配置され、切替室扉４６の右側から切替室扉４６の内部（図１２Ａの紙面奥方向）に向かう。
FIG. 12A is a side view of the outer shell 45 and the switching chamber door 46. The power cable 468 that crawls on the upper surface of the outer shell 45 descends to the side of the outer shell 45 on the front side of the outer shell 45, passes through the inside of the cover member 470, and heads toward the inside of the switching chamber door 46. In the illustrated example, the positive electrode cable 466 is arranged on the right side on the front side of the outer shell 45, and faces the inside of the switching chamber door 46 (toward the back of the paper in FIG. 12A) from the right side of the switching chamber door 46.
図１２Ｂは、図１２ＡのＣ－Ｃ線断面図であり、図１２Ｃは、図１２ＢのＤ部拡大図である。図１２Ｂ、図１２Ｃ及び図１３（後記）を参照する以下の説明では、電源ケーブル４６８の一例として正極ケーブル４６６（電源ケーブル４６８）を主に例示するが、負極ケーブル４６７に対しても以下の説明が同様に適用される。
12B is a sectional view taken along line CC of FIG. 12A, and FIG. 12C is an enlarged view of a portion D of FIG. 12B. In the following description with reference to FIGS. 12B, 12C and 13 (described later), the positive electrode cable 466 (power cable 468) is mainly exemplified as an example of the power cable 468, but the following description also applies to the negative electrode cable 467. Is applied in the same way.
切替室扉４６は、正面視で切替室扉４６の左右方向に延在する回動軸４５０を中心に回動可能に配置される。回動軸４５０は、外郭４５に固定され左右方向に延在する中空状の管４５９のうち、切替室扉４６に固定され左右方向に延在する中空状の管４９１に接触する部分に形成される。管４９１の内部で、管４９１（円管）の内径と一致（対応）する外径を有する管４５９（円管）が摺動することで、切替室扉４６が回動する。切替室扉４６は、例えば、外郭４５に対してヒンジ（蝶番）によって回動可能に構成される。
The switching chamber door 46 is rotatably arranged around a rotation shaft 450 extending in the left-right direction of the switching chamber door 46 in a front view. The rotation shaft 450 is formed in a portion of the hollow pipe 459 fixed to the outer shell 45 and extending in the left-right direction, which is fixed to the switching chamber door 46 and in contact with the hollow pipe 491 extending in the left-right direction. The door. Inside the pipe 491, a pipe 459 (circular pipe) having an outer diameter that matches (corresponds to) the inner diameter of the pipe 491 (circular pipe) slides, so that the switching chamber door 46 rotates. The switching chamber door 46 is configured to be rotatable with respect to the outer shell 45, for example, by a hinge.
回動軸４５０は、管４５９の内部に形成される中空部分である中空部４５１を備える。正極端子４７１（図１０）に接続される正極ケーブル４６６は、中空部４５１の左側から入り、中空部４５１を通ることで左右方向に配置される。正極ケーブル４６６が中空部４５１を通るように配置されることで、正極ケーブル４６６の撓み、折れ等の変形を抑制でき、断線を抑制できる。また、例えば回動軸４５０の外側に正極ケーブル４６６を設置する場合と比べ、無駄スペースを削減してスペース効率を向上できる。
The rotation shaft 450 includes a hollow portion 451 which is a hollow portion formed inside the pipe 459. The positive electrode cable 466 connected to the positive electrode terminal 471 (FIG. 10) enters from the left side of the hollow portion 451 and is arranged in the left-right direction by passing through the hollow portion 451. By arranging the positive electrode cable 466 so as to pass through the hollow portion 451 it is possible to suppress deformation such as bending and bending of the positive electrode cable 466, and it is possible to suppress disconnection. Further, as compared with the case where the positive electrode cable 466 is installed on the outside of the rotating shaft 450, for example, the wasted space can be reduced and the space efficiency can be improved.
即ち、正極ケーブル４６６は、正極端子４７１（図１０。電熱線４７３の一方端）から切替室扉４６の左右方向における右端（一方端）に向かうように、中空部４５１を通って配置される。切替室扉４６の右側から突出した正極ケーブル４６６は、上記の図１２Ａに示すように右側方を後方に向かって延在し、更に、上記の図１１に示すように外郭４５の上面を後方に向かって這うように延在する。
That is, the positive electrode cable 466 is arranged through the hollow portion 451 so as to go from the positive electrode terminal 471 (FIG. 10, one end of the heating wire 473) to the right end (one end) of the switching chamber door 46 in the left-right direction. The positive electrode cable 466 protruding from the right side of the switching chamber door 46 extends rearward on the right side as shown in FIG. 12A above, and further, the upper surface of the outer shell 45 extends rearward as shown in FIG. 11 above. It extends like crawling toward.
また、負極ケーブル４６７は、負極端子４７２（図１０。電熱線４７３の他方端）から切替室扉４６の左右方向における左端（他方端）に向かうように、中空部４５１を通って配置される。切替室扉４６の左側から突出した負極ケーブル４６７は、図示はしないが、左側方を後方に向かって延在し、更に、上記の図１１に示すように外郭４５の上面を後方に向かって這うように延在する。
Further, the negative electrode cable 467 is arranged through the hollow portion 451 so as to go from the negative electrode terminal 472 (FIG. 10, the other end of the heating wire 473) to the left end (the other end) of the switching chamber door 46 in the left-right direction. Although not shown, the negative electrode cable 467 protruding from the left side of the switching chamber door 46 extends rearward on the left side, and further crawls rearward on the upper surface of the outer shell 45 as shown in FIG. 11 above. It is extended like this.
このように、正極ケーブル４６６を負極ケーブル４６７とは別体にしてそれぞれ中空部４５１を通すことで、正極ケーブル４６６及び負極ケーブル４６７を束ねた場合と比べて、電源ケーブル４６８を細くできる。これにより、中空部４５１に通し易くできるとともに、通した後に、回動軸４５０の回動への電源ケーブル４６８による影響を抑制できる。
In this way, by separating the positive electrode cable 466 from the negative electrode cable 467 and passing the hollow portion 451 through each of them, the power cable 468 can be made thinner than in the case where the positive electrode cable 466 and the negative electrode cable 467 are bundled. As a result, it is possible to easily pass through the hollow portion 451 and, after passing through, it is possible to suppress the influence of the power cable 468 on the rotation of the rotating shaft 450.
図１３は、外郭４５に切替室扉４６を取り付けた状態を示す背面側からの外観斜視図である。図１３では、図１１とは異なり、カバー部材４７０の図示を省略する。外郭４５に切替室容器４４が収容されているが、切替室容器４４については後記する。
FIG. 13 is an external perspective view from the rear side showing a state in which the switching chamber door 46 is attached to the outer shell 45. In FIG. 13, unlike FIG. 11, the cover member 470 is not shown. The switching chamber container 44 is housed in the outer shell 45, and the switching chamber container 44 will be described later.
上記の図１２Ｃを参照して説明したように、正極ケーブル４６６は、回動軸４５０の左側において電熱線４７３（図１０）に接続され、その反対側である右側の端部から突出する。突出した正極ケーブル４６６は、図１３に示すように、正面視で背面方向に向かって延在するとともに、背面方向に向かっていったん降りて再度昇る屈曲部４６９を備えて配置される。即ち、正極ケーブル４６６は、回動軸４５０（図１２Ｃ）よりも低い位置を通る。屈曲部４６９を備えることで、正極ケーブル４６６に結露水が生じた場合であっても、屈曲部４６９に結露水を捕捉でき、正極ケーブル４６６を伝った電源への結露水の到達を抑制できる。図示の例では、屈曲部４６９より背面側で、外郭４５の側方に配置された正極ケーブル４６６が外郭４５の上面に至る。
As described with reference to FIG. 12C above, the positive electrode cable 466 is connected to the heating wire 473 (FIG. 10) on the left side of the rotating shaft 450 and projects from the right end on the opposite side. As shown in FIG. 13, the protruding positive electrode cable 466 extends toward the rear surface in a front view, and is arranged with a bent portion 469 that descends and rises again toward the rear surface. That is, the positive electrode cable 466 passes through a position lower than the rotation shaft 450 (FIG. 12C). By providing the bent portion 469, even when dew condensation water is generated on the positive electrode cable 466, the dew condensation water can be captured by the bent portion 469, and the arrival of the dew condensation water to the power source transmitted through the positive electrode cable 466 can be suppressed. In the illustrated example, the positive electrode cable 466 arranged on the back side of the bent portion 469 and on the side of the outer shell 45 reaches the upper surface of the outer shell 45.
外郭４５は、背面壁（内壁）に、外郭４５を切替室４に挿入した状態で切替室吐出口１４１（図４）及び切替室戻り口１７１（図４）と外郭４５の内部とを連通させるように、開口４８１（吐出口）及び開口４８２（戻り口）を備える。開口４８１は、冷却器７で生成した冷気を外郭４５の内部に吐出するものであり、開口４８２は、外郭４５の内部の空気を冷却器７に戻すものである。図示の例では、冷蔵庫１の正面視で、開口４８１，４８２は、切替室吐出口１４１及び切替室戻り口１７１の位置と一致する。
The outer shell 45 communicates the inside of the outer shell 45 with the switching chamber discharge port 141 (FIG. 4) and the switching chamber return port 171 (FIG. 4) in a state where the outer shell 45 is inserted into the switching chamber 4 on the back wall (inner wall). As described above, an opening 481 (discharge port) and an opening 482 (return port) are provided. The opening 481 discharges the cold air generated by the cooler 7 into the outer shell 45, and the opening 482 returns the air inside the outer shell 45 to the cooler 7. In the illustrated example, in the front view of the refrigerator 1, the openings 481, 482 coincide with the positions of the switching chamber discharge port 141 and the switching chamber return port 171.
開口４８１，４８２をこのように配置することで、開口４８１から外郭４５に吹き出す冷気と、外郭４５の内部から開口４８２を通じて冷却器７に戻る空気との流動抵抗を抑制でき、切替室４の冷却効率を向上できる。また、開口４８１，４８２がいずれも外郭４５の背面壁に備えられることで、切替室４の背面側に形成された冷却器７に空気を戻し易くでき、流動抵抗を抑制できる。尤も、開口４８１，４８２並びに切替室吐出口１４１及び切替室戻り口１７１はそれぞれ、左右側面に設けられていてもよい。
By arranging the openings 481 and 482 in this way, it is possible to suppress the flow resistance between the cold air blown from the opening 481 to the outer shell 45 and the air returning from the inside of the outer shell 45 to the cooler 7 through the opening 482, and the cooling of the switching chamber 4 can be suppressed. Efficiency can be improved. Further, since the openings 481 and 482 are both provided on the back wall of the outer shell 45, air can be easily returned to the cooler 7 formed on the back side of the switching chamber 4, and the flow resistance can be suppressed. However, the openings 481, 482, the switching chamber discharge port 141, and the switching chamber return port 171 may be provided on the left and right side surfaces, respectively.
外郭４５は、背面側の外壁に、開口４８１，４８２を囲うようにシール材４７５，４７６を備える。シール材４７５,４７６は例えば軟質ウレタンフォームである。外郭４５を切替室４に挿入すると、切替室吐出口１４１及び切替室戻り口１７１と開口４８１，４８２とが対向し、冷気又は空気が流れる。そこで、シール材４７５，４７６を備えることで、切替室吐出口１４１と開口４８１との間、及び、切替室戻り口１７１と開口４８２との間からの冷気又は空気の漏れを抑制できる。
The outer shell 45 is provided with a sealing material 475,476 on the outer wall on the back side so as to surround the openings 481,482. The sealing materials 475 and 476 are, for example, soft urethane foam. When the outer shell 45 is inserted into the switching chamber 4, the switching chamber discharge port 141, the switching chamber return port 171 and the openings 481, 482 face each other, and cold air or air flows. Therefore, by providing the sealing materials 475 and 476, it is possible to suppress leakage of cold air or air between the switching chamber discharge port 141 and the opening 481 and between the switching chamber return port 171 and the opening 482.
図１４は、外郭４５の一部を切断して示す内部構造図である。外郭４５の底面４５３は、内部にポリスチレンフォーム等の断熱材９６３を実装した断熱壁により構成される。外郭４５は、内部底面に、切替室容器４４（図１５）を収容したときに内部で固定するロック機構４５４を備える。ロック機構４５４は、爪４７７と、正面側が開いたガイド部４７８とを備える。ロック機構４５４の機能については、切替室容器４４（図１６）のロック機構４４８（図１６）とともに、図１６を参照しながら後記する。
FIG. 14 is an internal structural diagram showing a part of the outer shell 45 cut out. The bottom surface 453 of the outer shell 45 is composed of a heat insulating wall on which a heat insulating material 963 such as polystyrene foam is mounted inside. The outer shell 45 is provided with a lock mechanism 454 on the inner bottom surface for internally fixing the switching chamber container 44 (FIG. 15) when it is accommodated. The lock mechanism 454 includes a claw 477 and a guide portion 478 with the front side open. The function of the lock mechanism 454 will be described later with reference to FIG. 16 together with the lock mechanism 448 (FIG. 16) of the switching chamber container 44 (FIG. 16).
図１５は、切替室容器４４の上方からの外観斜視図である。取っ手４４３の内部には、断熱材９６２（図１８）が収容される。ただし、断熱材９６２の配置とともに、又は断熱材９６２の配置に代えて、取っ手４４３に例えばスリットを形成することで伝熱経路を少なくして断熱したり、切替室扉４６に内蔵されたヒータ４６２（図１０）の熱を伝熱させたりして、切替室４及び切替室４を収容する室（本実施形態では冷蔵室３）の一方が第１温度帯、他方が第２温度帯に設定された場合の、取っ手４４３への結露を抑制してもよい。ヒータ４６２の熱を効果的に伝達させるべく、ヒータ４６２側に取っ手４４３から延在する金属部材を設けてもよい。
FIG. 15 is an external perspective view of the switching chamber container 44 from above. A heat insulating material 962 (FIG. 18) is housed inside the handle 443. However, with the arrangement of the heat insulating material 962 or instead of the arrangement of the heat insulating material 962, for example, a slit is formed in the handle 443 to reduce the heat transfer path and insulate, or the heater 462 built in the switching chamber door 46. By transferring the heat of (FIG. 10), one of the switching chamber 4 and the chamber accommodating the switching chamber 4 (refrigerating chamber 3 in this embodiment) is set to the first temperature zone and the other is set to the second temperature zone. If this is the case, dew condensation on the handle 443 may be suppressed. In order to effectively transfer the heat of the heater 462, a metal member extending from the handle 443 may be provided on the heater 462 side.
切替室容器４４は、外郭４５の開口４８１（図１３）の高さ位置よりも高い背面壁４４５（内壁）と、正面視で開口４８１と重なる背面壁４４５の部位に形成された開口４４１（内壁開口）とを備える。従って、切替室吐出口１４１（図４）から開口４８１（図１４）を通じ外郭４５に吐出された冷気は、更に、開口４４１を通じて切替室容器４４に吐出される。切替室容器４４は、更に、開口４４１を覆うように配置された透過部材４３８を備え、透過部材４３８は冷気を透過可能なものである。透過部材４３８は、図示の例ではスリットであるが、例えばメッシュ等でもよい。
The switching chamber container 44 has an opening 441 (inner wall) formed at a portion of the back wall 445 (inner wall) higher than the height position of the opening 481 (FIG. 13) of the outer shell 45 and the back wall 445 overlapping the opening 481 in the front view. With an opening). Therefore, the cold air discharged from the switching chamber discharge port 141 (FIG. 4) to the outer shell 45 through the opening 481 (FIG. 14) is further discharged to the switching chamber container 44 through the opening 441. The switching chamber container 44 further includes a transmission member 438 arranged so as to cover the opening 441, and the transmission member 438 is capable of transmitting cold air. The transmission member 438 is a slit in the illustrated example, but may be, for example, a mesh or the like.
背面壁４４５、開口４４１及び透過部材４３８を備えることで、切替室容器４４の背面壁４４５を高くしたまま切替室吐出口１４１から吐出した冷気を切替室容器４４に吐出でき、切替室容器４４の収納容量を大きくできる。また、透過部材４３８によって冷気の流動抵抗を抑制し、切替室容器４４の冷却効率を向上できる。さらに、切替室容器４４に収納された食品等の収容物が、開口４４１を介して切替室容器４４と外郭４５との間に落下することを抑制でき、使い勝手を向上できる。
By providing the back wall 445, the opening 441, and the transmission member 438, the cold air discharged from the switching chamber discharge port 141 can be discharged to the switching chamber container 44 while the back wall 445 of the switching chamber container 44 is raised, and the switching chamber container 44 can be discharged. The storage capacity can be increased. Further, the permeation member 438 can suppress the flow resistance of cold air and improve the cooling efficiency of the switching chamber container 44. Further, it is possible to prevent the food or the like contained in the switching chamber container 44 from falling between the switching chamber container 44 and the outer shell 45 through the opening 441, and the usability can be improved.
切替室容器４４は、側壁４４６に、開口４４２と、開口４４２を覆うように配置された透過部材４３９を備え、透過部材４３９は空気を透過可能なものである。透過部材４３９は、図示の例ではスリットであるが、例えばメッシュ等でもよい。
The switching chamber container 44 includes an opening 442 and a transmission member 439 arranged so as to cover the opening 442 on the side wall 446, and the transmission member 439 is capable of transmitting air. The transmission member 439 is a slit in the illustrated example, but may be, for example, a mesh or the like.
開口４４２を備えることで、食品等を冷却した空気を切替室容器４４の外部であって外郭４５の内部に排気できる。詳細は後記するが、外郭４５に排気された空気は、切替室戻り口１７１（図４）を通じて排気される。そこで、開口４４２は、切替室容器４４の前後方向長さの中心よりも後方に配置され、これにより、開口４８２（図１４）及び切替室戻り口１７１を通じて排気され易くできる。また、透過部材４３９によって空気の流動抵抗を抑制し、切替室容器４４の外部に排気し易くできる。さらに、切替室容器４４に収納された食品等の収容物が、開口４４２を介して切替室容器４４と外郭４５との間に落下することを抑制でき、使い勝手を向上できる。
By providing the opening 442, the air that has cooled the food or the like can be exhausted to the outside of the switching chamber container 44 and the inside of the outer shell 45. The details will be described later, but the air exhausted to the outer shell 45 is exhausted through the switching chamber return port 171 (FIG. 4). Therefore, the opening 442 is arranged behind the center of the length in the front-rear direction of the switching chamber container 44, whereby the air can be easily exhausted through the opening 482 (FIG. 14) and the switching chamber return port 171. Further, the permeation member 439 suppresses the flow resistance of the air, so that the air can be easily exhausted to the outside of the switching chamber container 44. Further, it is possible to prevent the food or the like contained in the switching chamber container 44 from falling between the switching chamber container 44 and the outer shell 45 through the opening 442, and the usability can be improved.
図１６は、切替室容器４４の下方からの外観斜視図である。切替室容器４４は、外側底面にロック機構４４８を備え、ロック機構４４８は、ロック機構４５４（図１４）と協働し、切替室容器４４を外郭４５に収容したときに内部で固定する。ロック機構４４８は、挿入部４４０及び凹部４４７を備える。
FIG. 16 is an external perspective view of the switching chamber container 44 from below. The switching chamber container 44 is provided with a lock mechanism 448 on the outer bottom surface, and the lock mechanism 448 cooperates with the lock mechanism 454 (FIG. 14) to internally fix the switching chamber container 44 when it is housed in the outer shell 45. The lock mechanism 448 includes an insertion portion 440 and a recess 447.
切替室容器４４を外郭４５に挿入すると、挿入部４４０は、正面側からガイド部４７８（図１４）に挿入される。挿入部４４０の左右方向外寸（爪４７７の部分を除く）は、ガイド部４７８の左右方向内寸（挿入部４４０が通る部分の寸法）とほぼ同じである。このとき、挿入部４４０は、ガイド部４７８の左右方向内寸よりもわずかに短い左右方向内寸（挿入部４４０が通る部分の寸法）の爪４７７（図１４）を広げるようにして、挿入される。切替室容器４４を最も奥まで背面方向に押し込むと、爪４７７が元の位置に元って、爪４７７が凹部４４７に嵌る。これにより、外郭４５の内部で切替室容器４４が固定される。
When the switching chamber container 44 is inserted into the outer shell 45, the insertion portion 440 is inserted into the guide portion 478 (FIG. 14) from the front side. The left-right outer dimension of the insertion portion 440 (excluding the portion of the claw 477) is substantially the same as the left-right inner dimension of the guide portion 478 (the dimension of the portion through which the insertion portion 440 passes). At this time, the insertion portion 440 is inserted so as to widen the claw 477 (FIG. 14) having the inner dimension in the left-right direction (the dimension of the portion through which the insertion portion 440 passes), which is slightly shorter than the inner dimension in the left-right direction of the guide portion 478. To. When the switching chamber container 44 is pushed all the way toward the back, the claw 477 is brought back to its original position and the claw 477 fits into the recess 447. As a result, the switching chamber container 44 is fixed inside the outer shell 45.
図１７は、切替室容器４４を収容した外郭４５において、取っ手４４３を正面側に引いて切替室容器４４を引き出した状態を示す外観斜視図である。切替室容器４４は、正面側左右両端に、正面方向に向かって下る曲線、例えば円弧により構成された摺動部４３４を備える。摺動部４３４は、回動可能な切替室扉４６を支持する。切替室扉４６は、閉じたときに前後方向に延在する凸部４８３を備え、凸部４８３は摺動部４３４上に摺動可能に載置される。摺動部４３４は、上端に、切替室容器４４を最も正面側に引き出したとき、即ち、外郭４５の凸部４６０（図１４）が切替室容器４４の凸部４４４（図１５）に突き当たったときに凸部４８３を載置する、平坦部４３５を備える。従って、平坦部４３５は、切替室扉４６が開放した状態で切替室扉４６を載置する。
FIG. 17 is an external perspective view showing a state in which the handle 443 is pulled toward the front side and the switching chamber container 44 is pulled out in the outer shell 45 accommodating the switching chamber container 44. The switching chamber container 44 is provided with a sliding portion 434 formed by a curved line descending toward the front surface, for example, an arc, at both left and right ends on the front surface side. The sliding portion 434 supports a rotatable switching chamber door 46. The switching chamber door 46 includes a convex portion 483 extending in the front-rear direction when closed, and the convex portion 483 is slidably mounted on the sliding portion 434. At the upper end of the sliding portion 434, when the switching chamber container 44 was pulled out to the frontmost side, that is, the convex portion 460 (FIG. 14) of the outer shell 45 abutted against the convex portion 444 (FIG. 15) of the switching chamber container 44. A flat portion 435 is provided on which the convex portion 483 is sometimes placed. Therefore, the flat portion 435 mounts the switching chamber door 46 in a state where the switching chamber door 46 is open.
図１８は、切替室容器４４の移動時における切替室扉４６の動きを説明する図である。図１８は、切替室容器４４を最も正面側に引き出すことで、平坦部４３５に凸部４８３が載置されている状態を示す。切替室扉４６は９０°回動可能に構成され、全開時には、外郭４５の上面（補強部材４５５の上端４５６のうちの最も高い部分）と同じ高さになるように配置される。
FIG. 18 is a diagram illustrating the movement of the switching chamber door 46 when the switching chamber container 44 is moved. FIG. 18 shows a state in which the convex portion 483 is placed on the flat portion 435 by pulling out the switching chamber container 44 to the frontmost side. The switching chamber door 46 is configured to be rotatable by 90 °, and is arranged so as to be at the same height as the upper surface of the outer shell 45 (the highest portion of the upper end 456 of the reinforcing member 455) when fully opened.
図１８に示す状態で取っ手４４３を押し込むと、回動軸４５０（図１２Ｃ）の位置が維持された状態で切替室容器４４が背面側に移動する。これにより、切替室扉４６に備えられる凸部４８３は、正面側に向かって下る円弧の摺動部４３４の上を正面方向に滑り、摺動部４３４の最下端４３６に至ると、切替室扉４６は閉まる。切替室扉４６が閉まるとともに、ロック機構４４８，４５４（図１４、図１６）によって外郭４５の内部で切替室容器４４が固定され、内部でのがたつきが抑制される。
When the handle 443 is pushed in in the state shown in FIG. 18, the switching chamber container 44 moves to the back side while the position of the rotation shaft 450 (FIG. 12C) is maintained. As a result, the convex portion 483 provided on the switching chamber door 46 slides in the front direction on the sliding portion 434 of the arc that descends toward the front side, and when it reaches the lowermost end 436 of the sliding portion 434, the switching chamber door 46 closes. As the switching chamber door 46 closes, the switching chamber container 44 is fixed inside the outer shell 45 by the lock mechanisms 448 and 454 (FIGS. 14 and 16), and rattling inside is suppressed.
図示はしないが、取っ手４４３を正面側に引くことで、切替室容器４４が引き出されるとともに切替室扉４６が開く。即ち、最下端４３６に接触している凸部４８３は、取っ手４４３の引っ張りに伴う切替室容器４４の正面側への移動により、背面側に向かって昇る円弧の摺動部４３４の上を滑り、これにより、凸部４３７を備える切替室扉４６が開く。そして、凸部４８３は、最終的に図１８に示すように平坦部４３５に載置され、これにより、切替室扉４６が全閉になる。
Although not shown, by pulling the handle 443 toward the front side, the switching chamber container 44 is pulled out and the switching chamber door 46 is opened. That is, the convex portion 483 in contact with the lowermost end 436 slides on the sliding portion 434 of the arc rising toward the back surface side due to the movement toward the front side of the switching chamber container 44 due to the pulling of the handle 443. As a result, the switching chamber door 46 provided with the convex portion 437 opens. Finally, the convex portion 483 is placed on the flat portion 435 as shown in FIG. 18, whereby the switching chamber door 46 is fully closed.
図１９は、切替室４近傍の構造及び冷気及び空気の流れを説明する図であり、側方からの断面図である。切替室容器４４の背面壁４４５は、外側背面に、開口４４１を囲うように外郭４５側に向けて前後方向に立設した枠状のリブ４７４を備える。リブ４７４は、切替室容器４４を外郭４５に収容した状態で、更に、外郭４５の開口４８１を囲うように配置される。これにより、切替室吐出口１４１及び開口４８１を通じて吐出された冷気を、切替室容器４４の外部に漏出し難くできる。
FIG. 19 is a diagram illustrating a structure in the vicinity of the switching chamber 4 and the flow of cold air and air, and is a cross-sectional view from the side. The back wall 445 of the switching chamber container 44 is provided with a frame-shaped rib 474 erected in the front-rear direction toward the outer shell 45 side so as to surround the opening 441 on the outer back surface. The rib 474 is arranged so as to surround the opening 481 of the outer shell 45 in a state where the switching chamber container 44 is housed in the outer shell 45. As a result, the cold air discharged through the switching chamber discharge port 141 and the opening 481 can be prevented from leaking to the outside of the switching chamber container 44.
冷蔵庫１は、切替室容器４４の背面と外郭４５の背面との間に空間４２９を備える。切替室容器４４の戻り空気は、開口４４２（図１５）及び空間４２６（図２０）を通って空間４２９に流れ、開口４８２（図１４）及び切替室戻り口１７１（図４）を通じて、冷却器７に戻る。この切替室４の戻り冷気流れは、切替室４への送風停止時、すなわち冷凍室運転時、冷凍冷蔵室運転時、及び冷却停止時（ファン停止時）の場合には生じないため、冷気が滞留する。このため、これら運転の実行中及び冷却停止時には、空間４２９により、外郭４５の背面側の外部に、断熱層として機能する空気層を形成できる。これにより、切替室４周囲から切替室４への熱伝達を抑制できる。尤も、切替室４の戻り冷気流れが生じる、上記運転以外の運転の実行中であっても、空間４２９が断熱箱体１０と切替室容器４４との間に設けられることになるので、庫外から断熱箱体１０への固体熱伝導の影響を戻り冷気に与えることになるから、切替室容器４４内の温度安定性に寄与できる。
The refrigerator 1 includes a space 429 between the back surface of the switching chamber container 44 and the back surface of the outer shell 45. The return air of the switching chamber container 44 flows through the opening 442 (FIG. 15) and the space 426 (FIG. 20) to the space 429, and through the opening 482 (FIG. 14) and the switching chamber return port 171 (FIG. 4), the cooler. Return to 7. Since the return cold air flow of the switching chamber 4 does not occur when the air flow to the switching chamber 4 is stopped, that is, when the freezing chamber is operated, the freezing / refrigerating chamber is operated, and the cooling is stopped (when the fan is stopped), the cold air is generated. Stay. Therefore, during the execution of these operations and when the cooling is stopped, the space 429 can form an air layer that functions as a heat insulating layer on the outside of the back surface side of the outer shell 45. As a result, heat transfer from the periphery of the switching chamber 4 to the switching chamber 4 can be suppressed. However, even during an operation other than the above-mentioned operation in which the return cold air flow of the switching chamber 4 is generated, the space 429 is provided between the heat insulating box body 10 and the switching chamber container 44, so that it is outside the refrigerator. Since the influence of solid heat conduction on the heat insulating box 10 is returned to the cold air, it can contribute to the temperature stability in the switching chamber container 44.
図２０は、図１９のＥ－Ｅ線断面図である。冷蔵庫１は、切替室容器４４の外側の左右外側面と外郭４５の左右内側面との間に空間４２６を備える。空間４２６は空間４２９（図１９）と一体に形成されて連通し、上記のように、切替室容器４４の戻り空気は、開口４４２を通じて空間４２６に流れる。空間４２６を備えることで、外郭４５の左右両側の外部に、断熱層として機能する空気層を形成できる。これにより、切替室４の内壁及び冷蔵室３の内壁面を戻り空気により冷却され難くでき、結露及び霜の発生を抑制できる。また、当該内壁を伝った熱伝達を抑制できるため、第２温度帯に設定した切替室４の冷熱による冷蔵室３の冷え過ぎを抑制できる。
FIG. 20 is a cross-sectional view taken along the line EE of FIG. The refrigerator 1 includes a space 426 between the left and right outer surfaces on the outer side of the switching chamber container 44 and the left and right inner side surfaces of the outer shell 45. The space 426 is integrally formed with the space 429 (FIG. 19) and communicates with the space 426, and as described above, the return air of the switching chamber container 44 flows into the space 426 through the opening 442. By providing the space 426, an air layer that functions as a heat insulating layer can be formed on the left and right sides of the outer shell 45. As a result, the inner wall surface of the switching chamber 4 and the inner wall surface of the refrigerating chamber 3 can be made difficult to be cooled by the return air, and the generation of dew condensation and frost can be suppressed. Further, since the heat transfer transmitted through the inner wall can be suppressed, it is possible to suppress the overcooling of the refrigerating chamber 3 due to the cold heat of the switching chamber 4 set in the second temperature zone.
冷蔵庫１は、外郭４５の上面と断熱箱体１０との間に空間４２７を備える。空間４２７は、外郭４５の上面と断熱箱体１０との間に配置された、隣接する補強部材４５５の間に形成される。これにより、細かく区切られた空間４２７が形成され、対流抑制によって断熱性能を向上した空気層を形成できる。
The refrigerator 1 is provided with a space 427 between the upper surface of the outer shell 45 and the heat insulating box body 10. The space 427 is formed between the adjacent reinforcing members 455 arranged between the upper surface of the outer shell 45 and the heat insulating box body 10. As a result, a finely divided space 427 is formed, and an air layer having improved heat insulation performance can be formed by suppressing convection.
これらのように、外郭４５の外部において、左右両側、背面側及び上側には、断熱性能を有する空気層が形成される。切替室４は、左右側及び背面側については断熱箱体１０を主に、さらに空間４２６，４２９（空気層）で断熱される。上側は、切替室４の上側に設けられた断熱仕切壁２８を主に、さらに空間４２７（空気層）で断熱される。下側は、切替室４の下側（より具体的には外郭４５の下側）に設けられた断熱材９６３を主に、さらに空間４２８（空気層）で断熱される。正面側は、断熱材４６３で断熱される。これらのうち、空間４２６，４２７，４２８，４２９は、外郭４５と切替室容器４４との間に設けられ、少なくとも空気流れが滞留するものである。
As described above, on the outside of the outer shell 45, an air layer having heat insulating performance is formed on both the left and right sides, the back side, and the upper side. The switching chamber 4 is mainly insulated from the heat insulating box 10 on the left and right sides and the back side, and further insulated by spaces 426, 429 (air layer). The upper side is mainly insulated by the heat insulating partition wall 28 provided on the upper side of the switching chamber 4, and further by the space 427 (air layer). The lower side is mainly heat-insulated by the heat insulating material 963 provided on the lower side of the switching chamber 4 (more specifically, the lower side of the outer shell 45), and further by the space 428 (air layer). The front side is insulated with a heat insulating material 463. Of these, the spaces 426, 427, 428, and 429 are provided between the outer shell 45 and the switching chamber container 44, and at least the air flow is retained.
これらのように、切替室４は、左側及び右側それぞれが少なくとも断熱箱体１０で断熱され、上側及び下側それぞれが少なくとも断熱仕切壁２８又は断熱材９６３で断熱されている。これにより、特に左右側及び背面側では断熱箱体１０を効果的に用いることができ、切替室４に別途の断熱部材を備える必要が小さい又は無いため、外郭４５の内部空間を大きくでき、収容スペースを大きくできる。
As described above, in the switching chamber 4, the left side and the right side are each insulated by at least the heat insulating box 10, and the upper side and the lower side are each insulated by at least the heat insulating partition wall 28 or the heat insulating material 963. As a result, the heat insulating box 10 can be effectively used especially on the left and right sides and the back side, and since it is small or not necessary to provide a separate heat insulating member in the switching chamber 4, the internal space of the outer shell 45 can be increased and accommodated. You can increase the space.
冷蔵庫１は、切替室容器４４を外郭４５に収容した状態で、切替室容器４４の外側底面と外郭４５の外側底面の間に空間４２８を備える。空間４２８は、空間４２９（図１９）とは連通し、空間４２６とは連通しない。空間４２８の高さは例えば５ｍｍである。空間４２８を備えることで、空間４２６とは連通しないことによって空気の対流が生じ難い空気層を形成できる。空気層によって断熱でき、第２温度帯に設定された切替室４に起因する冷蔵室３の上面への結露及び霜の発生を抑制できる。また、第２温度帯に設定した切替室４の冷熱による冷蔵室３の冷え過ぎを抑制できる。
The refrigerator 1 is provided with a space 428 between the outer bottom surface of the switching chamber container 44 and the outer bottom surface of the outer shell 45 in a state where the switching chamber container 44 is housed in the outer shell 45. Space 428 communicates with space 429 (FIG. 19) and does not communicate with space 426. The height of the space 428 is, for example, 5 mm. By providing the space 428, it is possible to form an air layer in which air convection is unlikely to occur by not communicating with the space 426. It can be insulated by the air layer, and it is possible to suppress the generation of dew condensation and frost on the upper surface of the refrigerating chamber 3 due to the switching chamber 4 set in the second temperature zone. Further, it is possible to suppress overcooling of the refrigerating chamber 3 due to the cooling heat of the switching chamber 4 set in the second temperature zone.
冷蔵庫１は、底面４５３を樹脂により構成し、底面４５３と断熱材９６３との間にヒータ８２を備える。ヒータ８２により切替室４の温度を上昇させて調整し易くでき、例えば冷蔵食品の凍結を回避できる。ヒータ８２は、ヒータ４６２（図１０）と同様の構成を採用できる。
The refrigerator 1 has a bottom surface 453 made of resin, and is provided with a heater 82 between the bottom surface 453 and the heat insulating material 963. The heater 82 raises the temperature of the switching chamber 4 to facilitate adjustment, and for example, freezing of refrigerated food can be avoided. The heater 82 can adopt the same configuration as the heater 462 (FIG. 10).
図１９及び図２０を参照して、冷気及び空気の流れを説明する。図１９に示すように、切替室吐出口１４１は、外郭４５の開口４８１と略一致し、実線矢印で示すように、正面側に空気を吹き出す。切替室容器４４の、切替室吐出口１４１の前方投影領域には開口４４１が設けられ、切替室送風路１４からの冷気が、実線矢印で示すように切替室容器４４内に吹き出される。吹出された冷気は実線矢印で示すように循環して切替室容器４４内を冷却し、その後、実線矢印で示すように切替室容器４４の両側面の開口４４２から流出する。
The flow of cold air and air will be described with reference to FIGS. 19 and 20. As shown in FIG. 19, the switching chamber discharge port 141 substantially coincides with the opening 481 of the outer shell 45, and as shown by the solid line arrow, air is blown to the front side. An opening 441 is provided in the front projection region of the switching chamber discharge port 141 of the switching chamber container 44, and cold air from the switching chamber air passage 14 is blown into the switching chamber container 44 as shown by a solid arrow. The blown cold air circulates as shown by the solid line arrow to cool the inside of the switching chamber container 44, and then flows out from the openings 442 on both side surfaces of the switching chamber container 44 as shown by the solid line arrow.
図２０において、実線矢印で示すように開口４４２から流出した空気は、空間４２６に排気される。外郭４５の正面側の開口は切替室扉４６（図１９）により閉塞されているため、空間４２６に排気された空気は背面方向に流れる。そして、空気は背面側の空間４２９（図１９）に入り、破線矢印で示すように、開口４８２及び切替室戻り口１７１を通じて切替室戻り風路１７に流れる。
In FIG. 20, as shown by the solid arrow, the air flowing out from the opening 442 is exhausted to the space 426. Since the opening on the front side of the outer shell 45 is closed by the switching chamber door 46 (FIG. 19), the air exhausted to the space 426 flows in the rear direction. Then, the air enters the space 429 (FIG. 19) on the back side and flows into the switching chamber return air passage 17 through the opening 482 and the switching chamber return port 171 as shown by the broken line arrow.
図２１は、冷蔵室３の扉３１を開いたときの冷蔵庫１の外観斜視図である。図２１及び後記する図２２は、切替室容器４４を最も正面側に引き出し、扉３１を最も開いた（閉塞時の扉３１に対する角度として例えば９０°）ときの状態を示す。扉３１（貯蔵室扉）は、外壁３１１と、外壁３１１の内側に配置されたドアライナ３１２とを備える。ドアライナ３１２は、冷蔵室３の庫内壁を形成するもので、ドアポケット３４１，３４２，３４３，３４４を支持する。
FIG. 21 is an external perspective view of the refrigerator 1 when the door 31 of the refrigerator compartment 3 is opened. 21 and 22 shown later show a state when the switching chamber container 44 is pulled out to the frontmost side and the door 31 is opened most (for example, 90 ° as an angle with respect to the door 31 when closed). The door 31 (storage room door) includes an outer wall 311 and a door liner 312 arranged inside the outer wall 311. The door liner 312 forms the inner wall of the refrigerator compartment 3 and supports the door pockets 341, 342, 343, 344.
ドアライナ３１２は、取っ手４４３（張り出し部）と同じ高さ位置に、他の部位よりも盛り上がって形成された凸部３１３（例えば部分的なリブ）を備える。図示の例では、扉３１を閉じた状態の正面視で矩形状のドアライナ３１２において、扉３１を回動させる回動軸（不図示）に近い側の辺の一部に凸部３１３が形成される。凸部３１３の高さは、閉塞時の扉３１に対する所定角度（例えば９０℃）で扉３１を開いたときに、切替室容器４４を最も正面側に引き出しても切替室容器４４の取っ手４４３が凸部３１３（ドアライナ３１２又はドアポケット３４１の一例）に接触しない程度の高さである。
The door liner 312 is provided with a convex portion 313 (for example, a partial rib) formed at the same height as the handle 443 (overhanging portion) so as to be raised above the other portions. In the illustrated example, in the rectangular door liner 312 in the front view with the door 31 closed, a convex portion 313 is formed on a part of the side close to the rotation axis (not shown) for rotating the door 31. The door. The height of the convex portion 313 is such that when the door 31 is opened at a predetermined angle (for example, 90 ° C.) with respect to the door 31 at the time of closure, the handle 443 of the switching chamber container 44 can be pulled out to the frontmost side even if the switching chamber container 44 is pulled out to the frontmost side. The height is such that it does not come into contact with the convex portion 313 (an example of the door liner 312 or the door pocket 341).
図２２は、冷蔵室３の扉３１を開いたときの凸部３１３及び切替室容器４４の近傍を拡大して示す断面図である。切替室容器４４を最も正面側に引き出した状態（一部のみ引き出した状態でもよい）で扉３１を閉めると、ドアライナ３１２のうち扉３１に最も近い凸部３１３が取っ手４４３に接触する。接触した状態で扉３１を更に閉めると、扉３１の回動に伴って凸部３１３も、扉３１の回動方向と同一方向に移動する。扉３１の移動方向は、ベクトルで考えると背面方向を含むため、扉３１の回動に伴い、凸部３１３が取っ手４４３に背面方向への力を作用させる。これにより、取っ手４４３に接続された切替室容器４４が背面側に移動して外郭４５に収容され、切替室扉４６が閉じる。
FIG. 22 is an enlarged cross-sectional view showing the vicinity of the convex portion 313 and the switching chamber container 44 when the door 31 of the refrigerating chamber 3 is opened. When the door 31 is closed with the switching chamber container 44 pulled out to the frontmost side (may be only partially pulled out), the convex portion 313 of the door liner 312 closest to the door 31 comes into contact with the handle 443. When the door 31 is further closed in the contacted state, the convex portion 313 also moves in the same direction as the rotation direction of the door 31 as the door 31 rotates. Since the moving direction of the door 31 includes the back direction in terms of a vector, the convex portion 313 exerts a force on the handle 443 in the back direction as the door 31 rotates. As a result, the switching chamber container 44 connected to the handle 443 moves to the rear side and is housed in the outer shell 45, and the switching chamber door 46 closes.
このように、切替室容器４４は、切替室扉４６が開いた状態で扉３１を閉めるときに、凸部３１３によって取っ手４４３が背面方向に押されることで、切替室容器４４を背面方向に移動可能に構成される。切替室容器４４がこのように構成されることで、切替室扉４６が開いた状態で扉３１を閉めても、凸部３１３によって取っ手４４３が押されることで切替室容器４４を背面方向に移動できる。これにより、切替室容器４４の破損を速成し、扉３１を閉塞とともに切替室扉４６を閉塞できる。
In this way, the switching chamber container 44 moves the switching chamber container 44 in the rear direction by pushing the handle 443 in the rear direction by the convex portion 313 when the door 31 is closed with the switching chamber door 46 open. Possible to be configured. By configuring the switching chamber container 44 in this way, even if the door 31 is closed with the switching chamber door 46 open, the handle 443 is pushed by the convex portion 313 to move the switching chamber container 44 toward the rear surface. can. As a result, the switching chamber container 44 can be quickly damaged, and the door 31 can be closed and the switching chamber door 46 can be closed.
取っ手４４３又は切替室容器４４を押すことができれば、ドアライナ３１２に限らず、切替室扉４６と同じ高さに設けられているドアポケット３４１に凸部を設けてもよい。ドアライナ３１２の内部には断熱材が配されているためドアポケット３４１よりも高強度のため、ドアライナ３１２で押す態様が好ましい。また、凸部のような部分的なリブでなく全体的に背面側に届く構造にすることで、凸部がない態様で押すことができるように構成してもよい。従って、ドアライナ３１２又はドアポケット３４１の少なくとも一方を備える（図示の実施形態では双方備える）冷蔵庫１において、ドアライナ３１２又はドアポケット３４１によって切替室容器４４が背面方向に押されればよい。
If the handle 443 or the switching chamber container 44 can be pushed, the convex portion may be provided not only in the door liner 312 but also in the door pocket 341 provided at the same height as the switching chamber door 46. Since the heat insulating material is arranged inside the door liner 312, the strength is higher than that of the door pocket 341, so that the mode of pushing with the door liner 312 is preferable. Further, by adopting a structure that reaches the back surface side as a whole instead of a partial rib such as a convex portion, it may be configured so that it can be pushed in a manner without a convex portion. Therefore, in the refrigerator 1 provided with at least one of the door liner 312 or the door pocket 341 (both are provided in the illustrated embodiment), the switching chamber container 44 may be pushed toward the back by the door liner 312 or the door pocket 341.
切替室容器４４は、切替室容器４４を最も正面側に引き出したとき、切替室容器４４の正面側端部である取っ手４４３の正面側端部位置（破線Ｌ１で示す位置）が、冷蔵室３の開口（破線Ｌ２で示す位置）よりも正面側に配置可能に構成される。冷蔵室３の開口とは、冷蔵庫１における断熱箱体１０（即ち、扉３１を含まない）が形成する開口である。このようにすることで、切替室容器４４を冷蔵室３の開口よりも正面側に引き出せるため、使用者が切替室容器４４に野菜等の収容物を収容し易くでき、切替室４の使い勝手を向上できる。
When the switching chamber container 44 is pulled out to the frontmost side, the front end position (position indicated by the broken line L1) of the handle 443, which is the front end of the switching chamber container 44, is the refrigerating chamber 3. It is configured so that it can be arranged on the front side of the opening (position indicated by the broken line L2). The opening of the refrigerating chamber 3 is an opening formed by the heat insulating box 10 (that is, the door 31 is not included) in the refrigerator 1. By doing so, the switching chamber container 44 can be pulled out to the front side from the opening of the refrigerating chamber 3, so that the user can easily store the stored items such as vegetables in the switching chamber container 44, and the usability of the switching chamber 4 is easy. Can be improved.
図２３は、第二実施形態の冷蔵庫５０の正面図である。冷蔵庫５０は、冷凍室２が下段に区画され冷蔵室３が上段に区画されたこと、並びに、外形寸法及び内容積が異なること以外は、上記の冷蔵庫１（図１）と同様である。冷蔵庫５０の外形寸法としては、例えば、幅６８０ｍｍ、奥行き７２０ｍｍ、高さ１６７０ｍｍであるが、これに限定されない。
FIG. 23 is a front view of the refrigerator 50 of the second embodiment. The refrigerator 50 is the same as the above-mentioned refrigerator 1 (FIG. 1) except that the freezing chamber 2 is partitioned in the lower stage and the refrigerating chamber 3 is partitioned in the upper stage, and the external dimensions and the internal volume are different. The external dimensions of the refrigerator 50 are, for example, 680 mm in width, 720 mm in depth, and 1670 mm in height, but are not limited thereto.
図２４は、図２３のＦ－Ｆ断面図である。冷蔵庫５０は、冷凍室２内に冷凍室容器４２１，４２２，４２３を備える。冷蔵庫５０は、冷蔵室３の最下部に切替室４を備える。冷蔵庫５０は、扉２１の内側にドアポケット３２３を備え、これにより、収納性を向上できる。ファン９１は、冷却器室８の上部正面側に備えられる。冷蔵室切替室送風路１２及び切替室送風路１４は、何れも、冷凍室送風路１１の上部に備えられる。冷蔵室戻り口１６１は、冷蔵室３の下面（断熱仕切壁２８の上面）の正面側に備えられる。冷蔵室戻り口１６１に接続された冷蔵室戻り風路１６は、冷却器室８の左側下部に設けられた冷却器室戻り口１６２に至る。
FIG. 24 is a cross-sectional view taken along the line FF of FIG. 23. The refrigerator 50 includes a freezing room container 421, 422, 423 in the freezing room 2. The refrigerator 50 includes a switching chamber 4 at the bottom of the refrigerating chamber 3. The refrigerator 50 is provided with a door pocket 323 inside the door 21, whereby the storability can be improved. The fan 91 is provided on the upper front side of the cooler chamber 8. Both the refrigerating room switching chamber air passage 12 and the switching room air passage 14 are provided in the upper part of the freezing room switching chamber air passage 11. The refrigerating chamber return port 161 is provided on the front side of the lower surface of the refrigerating chamber 3 (the upper surface of the heat insulating partition wall 28). The refrigerating room return air passage 16 connected to the refrigerating room return port 161 reaches the cooler room return port 162 provided at the lower left side of the cooler room 8.
冷蔵庫５０では、切替室４は、以下のように構成される。切替室４を第１温度帯に設定した場合に、冷蔵室３及び切替室４（冷蔵室３、冷凍室２及び切替室４を含む室のうちの第１温度帯の室）の内容積が、冷凍室２（第２温度帯の室）の内容積よりも大きくなるように、切替室４が構成される。また、切替室４を第２温度帯に設定した場合に、冷蔵室３（冷蔵室３、冷凍室２及び切替室４を含む室のうちの第１温度帯の室）の内容積が、冷凍室２及び切替室４（第２温度帯の室）の内容積よりも小さくなるように、切替室４が構成される。
In the refrigerator 50, the switching chamber 4 is configured as follows. When the switching chamber 4 is set to the first temperature zone, the internal volume of the refrigerating chamber 3 and the switching chamber 4 (the chamber in the first temperature zone among the chambers including the refrigerating chamber 3, the freezing chamber 2 and the switching chamber 4) becomes The switching chamber 4 is configured so as to be larger than the internal volume of the freezing chamber 2 (chamber in the second temperature zone). Further, when the switching chamber 4 is set to the second temperature zone, the internal volume of the refrigerating chamber 3 (the chamber in the first temperature zone among the chambers including the refrigerating chamber 3, the freezing chamber 2 and the switching chamber 4) is frozen. The switching chamber 4 is configured so as to be smaller than the internal volumes of the chamber 2 and the switching chamber 4 (the chamber in the second temperature zone).
具体的には、冷蔵庫５０のＩＥＣ６２５５２－３：２０１５に基づいて測定した内容積としては、これらの数値に限定されないが、例えば、冷凍室２が１０３Ｌ、冷蔵室３が１１２Ｌ、切替室４が２５Ｌである。従って、切替室４を第１温度帯に設定した場合、冷蔵室３及び切替室４の内容積は１３７Ｌであり、冷凍室２の内容積である１０３Ｌよりも大きい。一方で、切替室４を第２温度帯に設定した場合、冷蔵室３の内容積である１１２Ｌは、冷凍室２及び切替室４の内容積である１２８Ｌよりも小さい。
Specifically, the internal volume measured based on IEC62552-3: 2015 of the refrigerator 50 is not limited to these values, but for example, the freezing room 2 is 103L, the refrigerating room 3 is 112L, and the switching room 4 is 25L. Is. Therefore, when the switching chamber 4 is set to the first temperature zone, the internal volume of the refrigerating chamber 3 and the switching chamber 4 is 137 L, which is larger than the internal volume of the freezing chamber 2 of 103 L. On the other hand, when the switching chamber 4 is set in the second temperature zone, 112L, which is the internal volume of the refrigerating chamber 3, is smaller than 128L, which is the internal volume of the freezing chamber 2 and the switching chamber 4.
このように切替室４を構成することで、必要に応じて使用者が切替室４の設定を選択することで、第１温度帯の室を大きくしたり、第２温度帯の室を大きくしたりできるので、冷蔵庫５０の使い勝手を向上できる。
By configuring the switching chamber 4 in this way, the user can select the setting of the switching chamber 4 as necessary to enlarge the chamber in the first temperature zone or enlarge the chamber in the second temperature zone. Therefore, the usability of the refrigerator 50 can be improved.
冷蔵庫５０では、冷蔵室戻り風路１６（貯蔵室戻り風路）は断熱仕切壁２８の内部に備えられ、切替室戻り風路１７（内室戻り風路）は切替室４から冷却器室８にかけて背面壁の内部に備えられ、冷凍室戻り風路１５は冷凍室２の背面壁の内部であって冷却器室８の正面に備えられる。このように、３つの戻り風路を夫々異なる壁面に配置することで、風路同士の間隔を広くして、一つの戻り風路を流れる空気の冷熱による他の戻り風路への作用を抑制できる。これにより、他の戻り風路内での霜の成長及び結露の発生を抑制でき、冷蔵庫５０の信頼性を向上できる。
In the refrigerator 50, the refrigerating room return air passage 16 (storage room return air passage) is provided inside the heat insulating partition wall 28, and the switching room return air passage 17 (inner chamber return air passage) is provided from the switching room 4 to the cooler room 8. The freezer compartment return air passage 15 is provided inside the back wall of the freezer compartment 2 and in front of the cooler chamber 8. In this way, by arranging the three return air passages on different wall surfaces, the distance between the air passages is widened, and the action of the air flowing through one return air passage on the other return air passages is suppressed. can. As a result, the growth of frost and the generation of dew condensation in other return air passages can be suppressed, and the reliability of the refrigerator 50 can be improved.
図２５は、風路配置を示す正面図である。冷蔵庫５０の風路配置は、概ね、冷蔵庫１（図４）の風路配置において上下反転した構成を採る。図２５は、扉２１，２２、冷凍室容器４２１，４２２，４２３、棚３５１，３５２，３５３、切替室扉４６、切替室容器４４を外した状態を示す。
FIG. 25 is a front view showing the air passage arrangement. The air passage arrangement of the refrigerator 50 generally adopts a configuration in which the air passage arrangement of the refrigerator 1 (FIG. 4) is turned upside down. FIG. 25 shows a state in which the doors 21 and 22, the freezing room container 421, 422, 423, the shelves 351 and 352, 353, the switching room door 46, and the switching room container 44 are removed.
ファン９２は、切替室４の背面側に備えられ、冷蔵室送風路１３を空気が上昇するように駆動する。冷蔵室切替室送風路１２は、冷凍室２の背面上部に備えられる。冷却器室戻り口１６２は、冷却器室８の左下の側面に備えられる。冷却器室戻り口１７２は、冷却器室８の右下の背面側に備えられる。
The fan 92 is provided on the back side of the switching chamber 4 and drives the refrigerating chamber air passage 13 so that the air rises. The refrigerating room switching room air passage 12 is provided in the upper part of the back surface of the freezing room 2. The cooler chamber return port 162 is provided on the lower left side surface of the cooler chamber 8. The cooler chamber return port 172 is provided on the lower right rear side of the cooler chamber 8.
図２６は、風路構成と冷凍サイクル構成の説明図である。冷蔵庫５０でも、冷蔵庫１（図５）と概ね同様にして冷気及び空気が流れる。ただし、冷蔵庫１とは異なり、冷凍室２からの空気は、冷凍室２の背面側に備えられた冷凍室戻り口１５１を通じて冷却器７に戻される。冷蔵室３では、冷気が上方から下方に向かうように流れ、冷蔵室３の下面である断熱仕切壁２８に備えられた冷蔵室戻り口１６１を通じて、冷却器７に戻される。
FIG. 26 is an explanatory diagram of an air passage configuration and a refrigeration cycle configuration. Even in the refrigerator 50, cold air and air flow in substantially the same manner as in the refrigerator 1 (FIG. 5). However, unlike the refrigerator 1, the air from the freezing chamber 2 is returned to the cooler 7 through the freezing chamber return port 151 provided on the back side of the freezing chamber 2. In the refrigerating chamber 3, cold air flows from the upper side to the lower side, and is returned to the cooler 7 through the refrigerating chamber return port 161 provided in the heat insulating partition wall 28 which is the lower surface of the refrigerating chamber 3.
以上で、実施形態を説明したが、本開示は前述した実施形態に限定されるものではなく、様々な変形例が含まれる。すなわち、前述した実施形態は本開示を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、実施形態の構成の一部について、他の構成の追加・削除・置換をすることが可能である。
Although the embodiments have been described above, the present disclosure is not limited to the above-described embodiments, and includes various modifications. That is, the above-described embodiment has been described in detail in order to explain the present disclosure in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to add / delete / replace a part of the configuration of the embodiment with another configuration.
本願は、以下の技術的思想を包含する。
［付記１－１］
冷蔵温度帯である第１温度帯、又は、冷凍温度帯を含む－５℃未満の第２温度帯の何れかの温度帯に設定された貯蔵室と、
前記貯蔵室の内部に配置され、正面側に開口が形成された内室と、
前記内室の正面側に形成された開口を閉塞する内室扉と、
前記内室扉を加熱するヒータと、
前記内室を前記第１温度帯又は前記第２温度帯の何れかの前記温度帯に切替可能な温度切替機構とを備える
ことを特徴とする冷蔵庫。
［付記１－２］
前記内室扉は、中空部を備える回動軸を軸中心に回動可能に配置され、
前記ヒータは、電熱線を備えるとともに、前記電熱線と電源とを接続する電源ケーブルに接続され、
前記電源ケーブルは、前記回動軸の前記中空部を通るように配置される
ことを特徴とする付記１－１に記載の冷蔵庫。
［付記１－３］
前記貯蔵室は、前記第１温度帯に設定されており、
前記内室扉は、
断熱材と、
該断熱材よりも前記貯蔵室側に設けられた前記ヒータと、を備える
ことを特徴とする付記１－２に記載の冷蔵庫。
［付記１－４］
前記貯蔵室は、前記第２温度帯に設定されており、
前記内室扉は、
断熱材と、
該断熱材よりも前記内室側に設けられた前記ヒータと、を備える
ことを特徴とする付記１－２に記載の冷蔵庫。
［付記１－５］
前記回動軸は、正面視で前記内室扉の左右方向に延在するように配置され、
前記電源ケーブルは、正極ケーブル及び負極ケーブルを含み、
前記正極ケーブルは、前記電熱線の一方端から前記内室扉の左右方向における一方端に向かうように前記中空部を通って配置され、
前記負極ケーブルは、前記電熱線の他方端から前記内室扉の左右方向における他方端に向かうように前記中空部を通って配置される
ことを特徴とする付記１－２～１－４何れか一項に記載の冷蔵庫。
［付記１－６］
前記電熱線に接続される側とは反対側の、前記回動軸の端部から突出した前記電源ケーブルは、正面視で背面方向に向かって延在するとともに、背面方向に向かっていったん降りて再度昇る屈曲部を備える
ことを特徴とする付記１－２～１－５何れか１項に記載の冷蔵庫。
［付記１－７］
前記内室は、
正面側が開口した外郭と、
前記外郭に収容され、前記外郭の開口を通じて出し入れ可能な容器と、
を備え、
前記内室扉は、前記外郭の開口を閉塞するように配置され、
前記容器は、前記内室扉を閉じたときに前記外郭の外部に露出するとともに張り出した張り出し部を備え、
前記容器は、前記張り出し部が正面側に引っ張られることで前記内室扉が開いて前記容器が引き出されるように構成される
ことを特徴とする付記１－２～１－６の何れか１項に記載の冷蔵庫。
［付記１－８］
前記張り出し部は、断熱材を備える、スリットが形成されている、又は前記ヒータ側に延在する金属部材を備える
ことを特徴とする付記１－７に記載の冷蔵庫。
［付記１－９］
前記外郭は、前記外郭の外面から立設する補強部材を備え、
前記電熱線に接続される側とは反対側の前記回動軸の端部から突出した前記電源ケーブルは、前記補強部材における該外郭から離れた側の端部よりも外郭側を這うようにして前記外郭の外面側に配置される
ことを特徴とする付記１－７又は１－８に記載の冷蔵庫。
［付記１－１０］
前記外郭は、前記外郭の内壁に、前記外郭の内部に供給する冷気を生成する冷却器で生成した冷気を前記外郭の内部に吐出する吐出口を備え、
前記容器は、
前記吐出口の高さ位置よりも高い内壁と、
前記吐出口の正面視で該吐出口と重なる前記容器の前記内壁の部位に形成された内壁開口と、
前記内壁開口を覆うように配置された、冷気を透過可能な透過部材と、
を備える
ことを特徴とする付記１－７～１－９の何れか１項に記載の冷蔵庫。
［付記１－１１］
前記外郭は、前記外郭の内壁に、
前記外郭の内部に供給する冷気を生成する冷却器で生成した冷気を前記外郭の内部に吐出する吐出口と、
前記外郭の内部の空気を前記冷却器に戻す戻り口とを備える
ことを特徴とする付記１－７～１－１０何れか１項に記載の冷蔵庫。
［付記１－１２］
前記内室は、
正面側が開口した外郭と、
前記外郭に収容され、前記外郭の開口を通じて出し入れ可能な容器と、
を備え、
前記内室扉は、前記外郭の開口を閉塞するように配置され、
前記貯蔵室の正面側に形成された開口を閉塞するとともに、外壁と、前記外壁の内側に配置されたドアライナ又はドアポケットの少なくとも一方とを備える貯蔵室扉を備え、
前記容器は、前記内室扉が開いた状態で前記貯蔵室扉を閉めるときに、前記ドアライナ又は前記ドアポケットによって前記容器が背面方向に押されることで、前記容器を背面方向に移動可能に構成される
ことを特徴とする付記１－２～１－１１の何れか１項に記載の冷蔵庫。
［付記１－１３］
前記貯蔵室の正面側に形成された開口を閉塞する貯蔵室扉を備え、
前記容器は、前記容器を最も正面側に引き出したとき、前記容器の正面側端部が前記貯蔵室の開口よりも正面側に配置可能に構成される
ことを特徴とする付記１－１２に記載の冷蔵庫。
［付記１－１４］
前記貯蔵室を内部に形成する断熱箱体と、
前記内室の上側及び下側それぞれに設けられた断熱仕切壁又は断熱材と、を備え、
前記内室は、
左側及び右側それぞれが少なくとも前記断熱箱体で断熱され、
上側及び下側それぞれが少なくとも前記断熱仕切壁又は前記断熱材で断熱されている
ことを特徴とする付記１－１～１－１３何れか１項に記載の冷蔵庫。
［付記１－１５］
前記内室は、
正面側が開口した外郭と、
前記外郭に収容され、前記外郭の開口を通じて出し入れ可能な容器と、
前記外郭と前記容器との間に設けられ、少なくとも空気流れが滞留し得る空気層と、を備える
ことを特徴とする付記１－１～１－１４の何れか１項に記載の冷蔵庫。
［付記１－１６］
前記内室は、
正面側が開口した外郭と、
前記外郭に収容され、前記外郭の開口を通じて出し入れ可能な容器と、
を備え、
前記容器は、
回動可能な前記内室扉を支持する曲線状の摺動部と、
前記内室扉が開放した状態で該内室扉を載置する平坦部と、を備える
ことを特徴とする付記１－１～１－１５の何れか１項に記載の冷蔵庫。
［付記２－１］
第１貯蔵室と、
前記第１貯蔵室の内部に配置され、正面側に開口が形成された内室と、
前記内室の正面側に形成された開口を閉塞する内室扉と、
前記内室を、冷蔵温度帯である第１温度帯、又は、冷凍温度帯を含む－５℃未満の第２温度帯の何れかの温度帯に切替可能な温度切替機構とを備える
ことを特徴とする冷蔵庫。
［付記２－２］
前記第１貯蔵室及び前記内室に供給される冷気を生成する冷却器と、
生成した冷気を前記内室に送風する内室送風路と、
前記内室から前記冷却器に空気を戻す内室戻り風路と、を備える
ことを特徴とする付記２－１に記載の冷蔵庫。
［付記２－３］
前記第１貯蔵室との間に断熱仕切壁を配置した冷凍室を備え、
前記冷却器は、前記冷凍室の背面側に配置される
ことを特徴とする付記２－２に記載の冷蔵庫。
［付記２－４］
前記第１貯蔵室から前記冷却器に空気を戻す貯蔵室戻り風路を備え、
前記内室戻り風路及び前記貯蔵室戻り風路は、異なる壁部材に配置される
ことを特徴とする付記２－３に記載の冷蔵庫。
［付記２－５］
前記内室戻り風路又は前記貯蔵室戻り風路のうちの一方の風路は、前記内室の背面壁の内部に配置され、
前記内室戻り風路又は前記貯蔵室戻り風路のうちの他方の風路は、前記断熱仕切壁の内部に配置される
ことを特徴とする付記２－４に記載の冷蔵庫。
［付記２－６］
前記第１貯蔵室から前記冷却器に空気を戻す貯蔵室戻り風路を前記断熱仕切壁に備え、
前記貯蔵室戻り風路の吸込口は、前記第１貯蔵室の正面側に形成された開口を閉塞する第１貯蔵室扉と、前記内室扉との間に配置される
ことを特徴とする付記２－３～２－５何れか１項に記載の冷蔵庫。
［付記２－７］
前記内室扉は、正面側に開いたときに前記吸込口を覆うように回動可能に配置される
ことを特徴とする付記２－６に記載の冷蔵庫。
［付記２－８］
前記内室扉は、断熱材と、該断熱材よりも前記貯蔵室戻り風路の吸込口側に配置されたヒータと、を備える
ことを特徴とする付記２－６又は２－７に記載の冷蔵庫。
［付記２－９］
前記第１貯蔵室は、前記第１温度帯に設定された冷蔵室である
ことを特徴とする付記２－１～２－８の何れか１項に記載の冷蔵庫。
［付記２－１０］
前記第１温度帯又は前記第２温度帯の何れかに設定されるとともに、前記第１貯蔵室よりも内容積が小さな第２貯蔵室を備える
ことを特徴とする付記２－１～２－９の何れか１項に記載の冷蔵庫。
［付記２－１１］
前記内室は、
前記内室を前記第１温度帯に設定した場合に、前記第１貯蔵室、前記第２貯蔵室及び前記内室を含む室のうちの前記第１温度帯の前記室の内容積が、前記第２温度帯の前記室の内容積よりも大きく、
前記内室を前記第２温度帯に設定した場合に、前記第１貯蔵室、前記第２貯蔵室及び前記内室を含む室のうちの前記第１温度帯の前記室の内容積が、前記第２温度帯の前記室の内容積よりも小さくなる、
ように構成される
ことを特徴とする付記２－１０に記載の冷蔵庫。
［付記３－１］
貯蔵室と、
該貯蔵室の正面側の開口を閉塞可能な回動式の貯蔵室扉と、
前記貯蔵室の内部に配置され、正面側に開口が形成された内室と、
前記内室の正面側に形成された開口を閉塞する内室扉と、を備え、
前記内室は、
正面側が開口した外郭と、
前記外郭に収容され、前記外郭の開口を通じて出し入れ可能な容器と、
を備え、
前記容器を最も正面側に引き出したとき、前記容器の正面側端部が前記貯蔵室の開口よりも正面側に配置可能に構成された冷蔵庫。
［付記３－２］
前記貯蔵室扉は、外壁と、前記外壁の内側に配置されたドアライナ又はドアポケットとを備え、
前記容器は、前記内室扉を閉じたときに前記外郭の外部に露出するとともに張り出した張り出し部を備え、
前記容器は、前記張り出し部が正面側に引っ張られることで前記内室扉が開いて前記容器が引き出されるように構成され、
前記貯蔵室扉を所定角度開いた場合、前記容器を最も正面側に引き出しても、前記張り出し部が前記ドアライナ又はドアポケットに接触しない付記３－１に記載の冷蔵庫。
［付記３－３］
前記内室扉が開いた状態で前記貯蔵室扉を閉めた場合、前記ドアライナ又はドアポケットによって前記容器が背面方向に押され、前記容器を背面方向に移動可能に構成されている付記３－１又は３－２に記載の冷蔵庫。
［付記３－４］
前記貯蔵室及び前記内室は、互いに異なる温度帯に設定され得て、
前記内室扉が開いた状態で前記貯蔵室扉を閉めた場合、前記ドアライナ又はドアポケットによって前記容器が背面方向に押され、前記容器が背面方向に移動し、さらに前記内室扉が閉じる付記３－３に記載の冷蔵庫。
［付記３－５］
前記外郭の上方に配されて、該外郭が取り付けられた壁と、
前記容器を正面側に引き出したときに前記容器が接触するストッパと、を備え、
前記容器を上方向に持ち上げながら前方に移動させることで前記外郭から該容器を取り出すことができる付記３－１乃至３－４何れか一項に記載の冷蔵庫。
［付記４－１］
第１貯蔵室と、
前記第１貯蔵室の内部に配置され、正面側に開口が形成され、前記第１貯蔵室とは異なる温度帯に設定され得る内室と、
前記内室の正面側に形成された開口を閉塞する内室扉と、
前記第１貯蔵室及び前記内室に供給される冷気を生成する冷却器と、
該冷却器で生成した冷気を、前記内室の背面投影領域に位置する内室吐出口から前記内室に送風する内室送風路と、を備え、
前記内室は、
正面側が開口した外郭と、
前記外郭に収容され、前記外郭の開口を通じて出し入れ可能な容器と、を備え、
前記外郭は、前記内室吐出口と前記外郭の内部とを連通させる開口を備える冷蔵庫。
［付記４－２］
前記容器は、
前記外郭の開口よりも上側に達する壁と、
該壁に設けられ、前記外郭の開口の正面視で該開口と重なる領域に配された開口と、を備える付記４－１に記載の冷蔵庫。
［付記４－３］
前記容器の壁に、前記容器の開口を囲い、前記外郭の開口側に向けて立設したリブを備える付記４－２に記載の冷蔵庫。
［付記４－４］
前記外郭及び前記容器の間に設けられ、少なくとも空気流れが滞留し得る空気層を備える付記４－１～４－３何れか１項に記載の冷蔵庫。
The present application includes the following technical ideas.
[Appendix 1-1]
A storage room set in either a first temperature zone, which is a refrigerating temperature zone, or a second temperature zone, which includes a freezing temperature zone and is lower than -5 ° C.
An inner chamber arranged inside the storage chamber and having an opening on the front side,
An inner chamber door that closes the opening formed on the front side of the inner chamber, and an inner chamber door.
A heater that heats the inner door and
A refrigerator comprising the temperature switching mechanism capable of switching the inner chamber to the temperature zone of either the first temperature zone or the second temperature zone.
[Appendix 1-2]
The inner chamber door is rotatably arranged around a rotation shaft having a hollow portion.
The heater includes a heating wire and is connected to a power cable connecting the heating wire and a power source.
The refrigerator according to Appendix 1-1, wherein the power cable is arranged so as to pass through the hollow portion of the rotating shaft.
[Appendix 1-3]
The storage chamber is set in the first temperature zone, and the storage chamber is set to the first temperature zone.
The inner door is
Insulation and
The refrigerator according to Appendix 1-2, comprising the heater provided on the storage chamber side of the heat insulating material.
[Appendix 1-4]
The storage chamber is set in the second temperature zone, and the storage chamber is set to the second temperature zone.
The inner door is
Insulation and
The refrigerator according to Appendix 1-2, comprising the heater provided on the inner chamber side of the heat insulating material.
[Appendix 1-5]
The rotating shaft is arranged so as to extend in the left-right direction of the inner chamber door in a front view.
The power cable includes a positive electrode cable and a negative electrode cable.
The positive electrode cable is arranged through the hollow portion so as to go from one end of the heating wire to one end in the left-right direction of the inner chamber door.
The negative electrode cable is arranged through the hollow portion so as to be directed from the other end of the heating wire to the other end in the left-right direction of the inner chamber door. The refrigerator described in item 1.
[Appendix 1-6]
The power cable protruding from the end of the rotating shaft, which is opposite to the side connected to the heating wire, extends toward the rear in front view and once descends toward the back. The refrigerator according to any one of Supplementary Provisions 1-2 to 1-5, which comprises a bent portion that rises again.
[Appendix 1-7]
The inner room is
The outer shell with the front side open and
A container that is housed in the outer shell and can be taken in and out through the opening of the outer shell.
Equipped with
The inner chamber door is arranged so as to close the opening of the outer shell.
The container is provided with an overhanging portion that is exposed to the outside of the outer shell and overhangs when the inner chamber door is closed.
The container is configured to open the inner chamber door by pulling the overhanging portion toward the front side so that the container can be pulled out. The refrigerator described in.
[Appendix 1-8]
The refrigerator according to Appendix 1-7, wherein the overhanging portion includes a heat insulating material, a slit is formed, or a metal member extending to the heater side.
[Appendix 1-9]
The outer shell includes a reinforcing member erected from the outer surface of the outer shell.
The power cable protruding from the end of the rotating shaft on the side opposite to the side connected to the heating wire crawls on the outer shell side of the end of the reinforcing member on the side away from the outer shell. The refrigerator according to Appendix 1-7 or 1-8, which is arranged on the outer surface side of the outer shell.
[Appendix 1-10]
The outer shell is provided with a discharge port on the inner wall of the outer shell for discharging the cold air generated by the cooler that generates the cold air supplied to the inside of the outer shell to the inside of the outer shell.
The container is
An inner wall higher than the height position of the discharge port and
An inner wall opening formed in a portion of the inner wall of the container that overlaps the discharge port when viewed from the front of the discharge port.
A permeable member that is arranged so as to cover the inner wall opening and is capable of allowing cold air to pass through.
The refrigerator according to any one of Supplementary Provisions 1-7 to 1-9.
[Appendix 1-11]
The outer shell is formed on the inner wall of the outer shell.
A discharge port that discharges the cold air generated by the cooler that generates the cold air supplied to the inside of the outer shell to the inside of the outer shell, and
The refrigerator according to any one of Supplementary Provisions 1-7 to 1-10, comprising a return port for returning the air inside the outer shell to the cooler.
[Appendix 1-12]
The inner room is
The outer shell with the front side open and
A container that is housed in the outer shell and can be taken in and out through the opening of the outer shell.
Equipped with
The inner chamber door is arranged so as to close the opening of the outer shell.
A storage room door comprising an outer wall and at least one of a door liner or a door pocket disposed inside the outer wall, as well as closing an opening formed on the front side of the storage room.
The container is configured to be movable in the rear direction by pushing the container in the rear direction by the door liner or the door pocket when the storage chamber door is closed with the inner chamber door open. The refrigerator according to any one of Supplementary Provisions 1-2 to 1-11.
[Appendix 1-13]
A storage room door that closes the opening formed on the front side of the storage room is provided.
The present invention is described in Appendix 1-12, wherein the container is configured so that when the container is pulled out to the frontmost side, the front end portion of the container can be arranged on the front side of the opening of the storage chamber. Refrigerator.
[Appendix 1-14]
The heat-insulating box that forms the storage chamber inside,
A heat insulating partition wall or a heat insulating material provided on each of the upper side and the lower side of the inner chamber is provided.
The inner room is
The left side and the right side are each insulated by at least the heat insulating box.
The refrigerator according to any one of Supplementary note 1-1 to 1-13, wherein each of the upper side and the lower side is insulated by at least the heat insulating partition wall or the heat insulating material.
[Appendix 1-15]
The inner room is
The outer shell with the front side open and
A container that is housed in the outer shell and can be taken in and out through the opening of the outer shell.
The refrigerator according to any one of Supplementary note 1-1 to 1-14, which is provided between the outer shell and the container and includes at least an air layer in which an air flow can stay.
[Appendix 1-16]
The inner room is
The outer shell with the front side open and
A container that is housed in the outer shell and can be taken in and out through the opening of the outer shell.
Equipped with
The container is
A curved sliding portion that supports the rotatable inner chamber door, and
The refrigerator according to any one of Supplementary note 1-1 to 1-15, comprising a flat portion on which the inner chamber door is placed in a state where the inner chamber door is open.
[Appendix 2-1]
The first storage room and
An inner chamber arranged inside the first storage chamber and having an opening on the front side,
An inner chamber door that closes the opening formed on the front side of the inner chamber, and an inner chamber door.
The inner chamber is provided with a temperature switching mechanism capable of switching to either a first temperature zone which is a refrigerating temperature zone or a second temperature zone of less than -5 ° C including a freezing temperature zone. Refrigerator.
[Appendix 2-2]
A cooler that generates cold air supplied to the first storage chamber and the inner chamber,
An inner chamber air passage that blows the generated cold air to the inner chamber,
The refrigerator according to Appendix 2-1 comprising an inner chamber return air passage for returning air from the inner chamber to the cooler.
[Appendix 2-3]
A freezing room in which a heat insulating partition wall is arranged between the first storage room and the storage room is provided.
The refrigerator according to Appendix 2-2, wherein the cooler is arranged on the back side of the freezing chamber.
[Appendix 2-4]
A storage chamber return air passage for returning air from the first storage chamber to the cooler is provided.
The refrigerator according to Appendix 2-3, wherein the inner chamber return air passage and the storage chamber return air passage are arranged on different wall members.
[Appendix 2-5]
One of the inner chamber return air passages and the storage chamber return air passages is arranged inside the back wall of the inner chamber.
The refrigerator according to Appendix 2-4, wherein the other air passage of the inner chamber return air passage or the storage chamber return air passage is arranged inside the heat insulating partition wall.
[Appendix 2-6]
The heat insulating partition wall is provided with a storage chamber return air passage for returning air from the first storage chamber to the cooler.
The suction port of the return air passage of the storage chamber is characterized to be arranged between the first storage chamber door that closes the opening formed on the front side of the first storage chamber and the inner chamber door. The refrigerator according to any one of Supplementary note 2-3 to 2-5.
[Appendix 2-7]
The refrigerator according to Appendix 2-6, wherein the inner chamber door is rotatably arranged so as to cover the suction port when opened to the front side.
[Appendix 2-8]
The description in Appendix 2-6 or 2-7, wherein the inner chamber door includes a heat insulating material and a heater arranged on the suction port side of the storage chamber return air passage with respect to the heat insulating material. refrigerator.
[Appendix 2-9]
The refrigerator according to any one of Supplementary Provisions 2-1 to 2-8, wherein the first storage chamber is a refrigerating chamber set in the first temperature zone.
[Appendix 2-10]
Addendum 2-1 to 2-9, which is set to either the first temperature zone or the second temperature zone, and includes a second storage chamber having a smaller internal volume than the first storage chamber. The refrigerator according to any one of the above items.
[Appendix 2-11]
The inner room is
When the inner chamber is set to the first temperature zone, the internal volume of the chamber in the first temperature zone among the first storage chamber, the second storage chamber, and the chamber including the inner chamber is the said. Larger than the internal volume of the chamber in the second temperature zone,
When the inner chamber is set to the second temperature zone, the internal volume of the chamber in the first temperature zone among the first storage chamber, the second storage chamber, and the chamber including the inner chamber is the said. It is smaller than the internal volume of the chamber in the second temperature zone.
The refrigerator according to Appendix 2-10, which is characterized in that.
[Appendix 3-1]
Storage room and
A rotary storage room door that can close the opening on the front side of the storage room, and
An inner chamber arranged inside the storage chamber and having an opening on the front side,
An inner chamber door that closes the opening formed on the front side of the inner chamber is provided.
The inner room is
The outer shell with the front side open and
A container that is housed in the outer shell and can be taken in and out through the opening of the outer shell.
Equipped with
A refrigerator configured so that when the container is pulled out to the frontmost side, the front end of the container can be arranged on the front side of the opening of the storage chamber.
[Appendix 3-2]
The storage room door comprises an outer wall and a door liner or door pocket located inside the outer wall.
The container is provided with an overhanging portion that is exposed to the outside of the outer shell and overhangs when the inner chamber door is closed.
The container is configured so that the inner chamber door is opened and the container is pulled out by pulling the overhanging portion toward the front side.
The refrigerator according to Appendix 3-1 in which the overhanging portion does not come into contact with the door liner or the door pocket even if the container is pulled out to the frontmost side when the storage chamber door is opened at a predetermined angle.
[Appendix 3-3]
When the storage room door is closed with the inner room door open, the container is pushed toward the back by the door liner or the door pocket, and the container is configured to be movable toward the back. Or the refrigerator according to 3-2.
[Appendix 3-4]
The storage chamber and the inner chamber can be set in different temperature zones.
When the storage room door is closed with the inner room door open, the container is pushed toward the back by the door liner or the door pocket, the container moves toward the back, and the inner room door is closed. The refrigerator according to 3-3.
[Appendix 3-5]
A wall arranged above the outer shell and to which the outer shell is attached,
A stopper, which the container comes into contact with when the container is pulled out to the front side, is provided.
The refrigerator according to any one of Supplementary Provisions 3-1 to 3-4, wherein the container can be taken out from the outer shell by moving the container forward while lifting it upward.
[Appendix 4-1]
The first storage room and
An inner chamber that is arranged inside the first storage chamber, has an opening on the front side, and can be set to a temperature zone different from that of the first storage chamber.
An inner chamber door that closes the opening formed on the front side of the inner chamber, and an inner chamber door.
A cooler that generates cold air supplied to the first storage chamber and the inner chamber,
It is provided with an inner chamber air passage for blowing cold air generated by the cooler from the inner chamber discharge port located in the rear projection region of the inner chamber to the inner chamber.
The inner room is
The outer shell with the front side open and
A container that is housed in the outer shell and can be taken in and out through the opening of the outer shell.
The outer shell is a refrigerator having an opening for communicating the inner chamber discharge port and the inside of the outer shell.
[Appendix 4-2]
The container is
A wall that reaches above the opening of the outer shell,
The refrigerator according to Appendix 4-1 provided with an opening provided on the wall and arranged in an area overlapping the opening in a front view of the opening of the outer shell.
[Appendix 4-3]
The refrigerator according to Appendix 4-2, wherein the wall of the container is provided with a rib that surrounds the opening of the container and is erected toward the opening side of the outer shell.
[Appendix 4-4]
The refrigerator according to any one of Supplementary note 4-1 to 4-3, which is provided between the outer shell and the container and has an air layer at least in which an air flow can stay.
