JP2004361082A

JP2004361082A - Refrigerator

Info

Publication number: JP2004361082A
Application number: JP2004274589A
Authority: JP
Inventors: Masao Miyamoto; 政雄宮本; Taiji Oshiro; 泰治大城; Hiroshi Yoshimura; 宏吉村
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2004-09-22
Filing date: 2004-09-22
Publication date: 2004-12-24
Anticipated expiration: 2020-01-13
Also published as: JP4111942B2

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate some disadvantages that a segment near a deep central location in a refrigerator chamber having an air circulation duct installed therein is hardly cooled due to a non-smooth circulation of cold air cooled by the cooler, only a location near a cold air discharging port of the cold air discharging duct has a tendency to be well cooled causing poor uniform cooling capability in the refrigerator. <P>SOLUTION: This refrigerator comprises a storing chamber 11 for storing items to be stored; coolers 21, 25 for generating cold air flowing into the storing chamber 11; cold air passages 23, 27, 28, 30 for guiding the cold air into the storing chamber 11; a member 42 for discharging cold heat generated by the cold air flowing in the cold air passages 23, 27, 28, 30; and a temperature sensing means 75 installed around the member 42. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は冷気を貯蔵室内に送出する冷蔵庫に関する。 The present invention relates to a refrigerator for sending cool air into a storage room.

従来この種の冷蔵庫は、例えば特許文献１に示されるように、冷蔵室内の奥中央部に上下方向に設けた空気循環ダクトと、前記空気循環ダクトの下方に設けられた圧縮機の停止時に運転される空気循環用送風機と、前記空気循環ダクトと所定の間隔をおいて奥両端部に上下方向に設けられ、圧縮機が運転され冷却器で冷却された送風機からの冷気を吐出する吐出口をもつ冷気吐出ダクトと、前記冷気吐出ダクトに前記冷蔵室の温度を検知する温度検知手段を設けたものがある。
特開平１０−５４６３８号公報 Conventionally, as shown in Patent Document 1, for example, this type of refrigerator operates when an air circulation duct provided vertically in a deep center portion inside a refrigerator compartment and a compressor provided below the air circulation duct are stopped. A blower for air circulation, and a discharge port for discharging cool air from the blower, which is provided vertically at both ends at a predetermined distance from the air circulation duct and is operated by a compressor and cooled by a cooler. Some of the cool air discharge ducts have a temperature detection means for detecting the temperature of the refrigerator compartment.
JP-A-10-54638

前記のような冷蔵庫では、圧縮機の運転時、前記空気循環ダクトのある冷蔵室の奥中央付近では、冷却器で冷却された冷気がまわりにくいため冷えにくく、前記冷気吐出ダクトの冷気の吐出口近くのみがよく冷える傾向にあり、庫内の均一な冷却能力に不足があるという課題があり、また、前記温度検知手段の多くの部分が、棚により区画された同一区画内の前記吐出口の下方の位置にあり、圧縮機の運転時、庫内での冷気の流れる道筋に温度検知手段の一部が位置するため、冷気が温度検知手段に触れる恐れがあり、正確な庫内温度の検知ができず、適正な温度に庫内を保てないという課題があり、さらに、空気循環用送風機の運転時、中央にある前記空気循環ダクトの、空気吸入口で左右を挟まれる中央付近の領域は、庫内空気の循環流がまわりにくく、貯蔵物が冷却されにくいという課題があった。 In the refrigerator as described above, during operation of the compressor, in the vicinity of the back center of the refrigerating room where the air circulation duct is located, it is difficult for the cool air cooled by the cooler to rotate, so that it is difficult to cool. There is a problem that the vicinity only tends to cool well, and there is a problem that the uniform cooling capacity in the refrigerator is insufficient.Moreover, many parts of the temperature detecting means are provided with the outlets in the same section defined by shelves. When the compressor is in operation, a part of the temperature detection means is located on the path of cold air inside the refrigerator when the compressor is operating. There is a problem that it is not possible to maintain the inside of the refrigerator at an appropriate temperature, and furthermore, when the air circulation blower is operating, the air circulation duct in the center, the area near the center sandwiched by the air intake ports on the left and right Is the circulating air flow Hardly around reservoir there is a problem that it is difficult to cool.

本発明の冷蔵庫は前記のような課題を解決したもので、本発明の冷蔵庫は、貯蔵物を収納する貯蔵室と、前記貯蔵室に流入する冷気を生成する冷却器と、該冷気を前記貯蔵室に導く冷気通路と、前記冷気通路内を流通する冷気による冷熱を貯蔵室内に放出する部材と、前記部材の周辺に温度検知手段を設けたことを特徴とするものである。 A refrigerator according to the present invention has solved the above-described problems. A refrigerator according to the present invention includes a storage room for storing a storage item, a cooler that generates cool air flowing into the storage room, and a storage device that stores the cool air in the storage room. A cool air passage leading to the chamber, a member for discharging cold heat generated by cool air flowing through the cool air passage into the storage room, and a temperature detecting means provided around the member.

また、本発明の冷蔵庫は、貯蔵物を収納する貯蔵室と、前記貯蔵室に流入する冷気を生成する冷却器と、該冷気を前記貯蔵室に導くとともに前記貯蔵室と隔壁を介して設けられる冷気通路と、前記隔壁の少なくとも一部を形成して前記冷気通路内を流通する冷気による冷熱を貯蔵室内に放出する部材と、前記部材の周辺に冷気の吐出口を設け、前記吐出口の上方に温度検知手段を設けたことを特徴とするものである。 In addition, the refrigerator of the present invention is provided with a storage room for storing a storage item, a cooler for generating cool air flowing into the storage room, and the cool air guided to the storage room and via the storage room and the partition. A cool air passage, a member that forms at least a part of the partition wall and discharges cold heat generated by cool air flowing through the cool air passage into a storage chamber, and a cool air discharge port is provided around the member, and a cool air discharge port is provided above the discharge port. And a temperature detecting means.

そして、本発明の冷蔵庫は、貯蔵物を収納する貯蔵室と、前記貯蔵室に流入する冷気を生成する冷却器と、該冷気を前記貯蔵室に導くとともに前記貯蔵室と隔壁を介して設けられる冷気通路と、前記隔壁の少なくとも一部を形成して前記冷気通路内を流通する冷気による冷熱を貯蔵室内に放出する部材と、前記貯蔵室には棚を設け、前記部材の周辺で前記棚にて区画された区画内に冷気の吐出口を設け、前記吐出口の上下方向で中央寄りの吐出口の上方に温度検知手段を設けたことを特徴とするものである。 Further, the refrigerator of the present invention is provided with a storage room for storing stored items, a cooler for generating cool air flowing into the storage room, and the cool air guided to the storage room via the storage room and the partition wall. A cool air passage, a member that forms at least a part of the partition wall and discharges cold heat due to cool air flowing through the cool air passage into a storage room, a shelf is provided in the storage room, and the shelf is provided around the member. A discharge port for cool air is provided in a section divided by a vertical direction, and a temperature detecting means is provided above a discharge port closer to the center in the vertical direction of the discharge port.

そしてまた、本発明の冷蔵庫は、前記吐出口は前記部材の左右方向の周辺に設け、前記冷気吐出口の上方に温度検知手段を設け、前記温度検知手段は左右方向を長手方向としたことを特徴とするものである。 Further, in the refrigerator of the present invention, the discharge port is provided around the left and right direction of the member, and a temperature detecting means is provided above the cold air discharge port, and the temperature detecting means has a left and right direction as a longitudinal direction. It is a feature.

さらに、本発明の冷蔵庫は、上方に温度検知手段を設けた前記吐出口の通路の上側は、前方に行くほど下方へ傾斜させたことを特徴とするものである。 Further, the refrigerator according to the present invention is characterized in that the upper side of the passage of the discharge port provided with the temperature detecting means on the upper side is inclined downward toward the front.

本発明によると、冷気通路を通る冷気の冷熱の一部は蓄冷部材や熱伝導部材から成る部材に伝えられ、全面から貯蔵室内に放出される。従って、貯蔵室は広い面積から一様に放出される冷熱により均一に冷却される。しかも、前記部材内には温度検知手段がないため、広い領域に部材を設けることができ、さらに冷却効率はあがり、また、温度検知手段が部材の冷熱の影響を受けにくいため、より正確に庫内温度が検知でき、庫内をより適正な温度に保てる。 According to the present invention, a part of the cold heat of the cool air passing through the cool air passage is transmitted to the member including the cold storage member and the heat conduction member, and is discharged into the storage chamber from the entire surface. Therefore, the storage room is uniformly cooled by the cold heat uniformly discharged from a large area. In addition, since there is no temperature detecting means in the member, the member can be provided in a wide area, the cooling efficiency is increased, and the temperature detecting means is hardly affected by the cooling heat of the member, so that the container can be more accurately stored. The inside temperature can be detected, and the inside of the refrigerator can be kept at a more appropriate temperature.

また、本発明によると、冷気通路を通る冷気の冷熱の一部は蓄冷部材や熱伝導部材から成るさらに広い面積の部材に伝えられ、全面から貯蔵室内に放出される。従って、貯蔵室はさらに広い面積から一様に放出される冷熱により均一に冷却される。しかも、部材周辺の冷気吐出口上方に温度検知手段があるため、広い領域に前記部材を設けることができ、さらに冷却効率はあがり、また、温度検知手段が部材の冷熱や吐き出された冷気の影響を受けにくいため、さらに正確な庫内温度が検知でき、庫内をより適正な温度に保てる。 Further, according to the present invention, a part of the cold heat of the cool air passing through the cool air passage is transmitted to the member having a larger area including the cold storage member and the heat conduction member, and is discharged into the storage chamber from the entire surface. Therefore, the storage room is uniformly cooled by the cold heat uniformly discharged from a larger area. Moreover, since the temperature detecting means is provided above the cool air discharge port around the member, the member can be provided in a wide area, the cooling efficiency is improved, and the temperature detecting means is affected by the cold heat of the member and the discharged cool air. Because it is hard to receive, the temperature in the refrigerator can be detected more accurately, and the temperature in the refrigerator can be maintained at a more appropriate temperature.

そしてまた、本発明によると、棚にて適度の空間に分割された区画内に、条件にあわせて吐出口が設けられ、上下方向で中央寄りの吐出口上方に温度検知手段が設けられており、温度検知手段が部材の冷熱や吐き出された冷気の影響を受けにくいため、いっそう正確な平均的庫内温度が検知でき、しかも、部材周辺の冷気吐出口上方に温度検知手段があるため、広い領域に部材を設けることができ、いっそう冷却効率はあがり、貯蔵室内は部材全面から貯蔵室内に放出される冷熱と吐出口からの冷気によりさらに均一に適正な温度に冷却される。 Further, according to the present invention, a discharge port is provided according to conditions in a section divided into appropriate spaces on the shelf, and a temperature detecting means is provided above the discharge port near the center in the vertical direction. Since the temperature detecting means is less susceptible to the cold heat of the member and the discharged cold air, it is possible to detect the average internal chamber temperature more accurately, and since the temperature detecting means is provided above the cool air discharge port around the member, the temperature detecting means is wide. A member can be provided in the region, the cooling efficiency is further increased, and the inside of the storage chamber is more uniformly cooled to an appropriate temperature by cold heat discharged from the entire surface of the member into the storage chamber and cool air from the discharge port.

また、本発明によると、温度検知手段の上下方向の領域が少なくてすみ、吐出口の位置する領域を広くとれ、条件にあわせて吐出口が設けられ、さらに庫内温度の均一化がはかれる。 Further, according to the present invention, the area in the vertical direction of the temperature detecting means can be reduced, the area where the discharge port is located can be widened, the discharge port is provided according to the conditions, and the temperature in the refrigerator can be made uniform.

そしてまた、本発明によると、上方に温度検知手段を設けた吐出口の通路の上側が、前方に行くほど下方へ傾斜しているため、吐出される冷気が下方へ流出するようになり、さらに温度検知手段への冷気の影響はなくなり、さらに適正な温度に庫内を保つことができる。 Further, according to the present invention, since the upper side of the passage of the discharge port provided with the temperature detecting means on the upper side is inclined downward toward the front, the discharged cool air flows out downward, The influence of the cold air on the temperature detecting means is eliminated, and the inside of the refrigerator can be kept at an appropriate temperature.

以下、本発明の冷蔵庫の実施の形態を図面とともに説明する。 Hereinafter, embodiments of the refrigerator of the present invention will be described with reference to the drawings.

図１は本発明の第１実施形態の冷蔵庫を示す側面断面図、図２は図１の冷蔵庫の冷蔵室の正面図、図３は図１の冷蔵庫の要部詳細図、図４は図１の冷蔵庫の上面断面図、図５は部材を示す斜視図、図６は他の部材を示す斜視図、図７は図５の部材付近の要部断面図、図８は図５の部材付近の要部断面図、図９は本発明の第２実施形態の冷蔵庫の側面断面図、図１０は図９の冷蔵庫の冷蔵室の正面図である。 1 is a side sectional view showing a refrigerator according to a first embodiment of the present invention, FIG. 2 is a front view of a refrigerator of FIG. 1, FIG. 3 is a detailed view of a main part of the refrigerator of FIG. 1, and FIG. 5, FIG. 5 is a perspective view showing members, FIG. 6 is a perspective view showing other members, FIG. 7 is a cross-sectional view of main parts near the members of FIG. 5, and FIG. 9 is a side sectional view of a refrigerator according to a second embodiment of the present invention, and FIG. 10 is a front view of a refrigerator of the refrigerator in FIG.

図１において、冷蔵庫１は外部を覆う外箱２ａの内側に内箱２ｂが配され、外箱２ａと内箱２ｂとの隙間には発泡ポリウレタン等の断熱材２ｃが充填されている。そして、１ａは前記冷蔵庫１の運転を制御する制御装置１ｂを含む電装ボックスであり、前記制御装置１ｂは冷蔵庫１の後述する各々の電気部品と電気的に接続されている。また、冷蔵庫１の内部は上から冷蔵室１１、野菜室１２、冷凍室１３の順に区分けされている。 In FIG. 1, a refrigerator 1 has an inner box 2b disposed inside an outer box 2a covering the outside, and a gap between the outer box 2a and the inner box 2b is filled with a heat insulating material 2c such as polyurethane foam. An electrical box 1a includes a control device 1b for controlling the operation of the refrigerator 1, and the control device 1b is electrically connected to respective electric components of the refrigerator 1 described later. The interior of the refrigerator 1 is divided into a refrigerator compartment 11, a vegetable compartment 12, and a freezer compartment 13 in this order from above.

野菜室１２と冷凍室１３は断熱部材から成る仕切枠１７及び断熱部材から成る仕切板１９に仕切られており、冷凍室１３は更に断熱部材から成る仕切枠１８により上部と下部に仕切られている。冷蔵室１１と野菜室１２は断熱部材から成る仕切枠１６及び樹脂成形品から成る仕切板３１、３２によって仕切られている。仕切板３２には貫通口３２ａが設けられている。 The vegetable compartment 12 and the freezing compartment 13 are partitioned by a partition frame 17 made of a heat insulating member and a partition plate 19 made of a thermal insulating member. The freezing compartment 13 is further partitioned into an upper portion and a lower portion by a partition frame 18 made of a heat insulating member. . The refrigerator compartment 11 and the vegetable compartment 12 are partitioned by a partition frame 16 made of a heat insulating member and partition plates 31 and 32 made of a resin molded product. The partition plate 32 is provided with a through hole 32a.

冷蔵室１１の下部には仕切板４６で仕切られる隔離室である氷温室１４が設けられている。冷蔵室１１には複数の棚４５が設けられ、棚４５、仕切板４６で冷蔵室１１は複数個に区画されている。冷蔵室１１の前面は回動式の断熱扉３により開閉可能になっている。野菜室１２、冷凍室１３の上部及び冷凍室１３の下部は前面が各々スライド式の断熱扉４、５、６により開閉可能になっており、収納容器５４、５５、５６を引出せるようになっている。 At the lower part of the refrigerating room 11, an ice temperature room 14, which is an isolation room partitioned by a partition plate 46, is provided. A plurality of shelves 45 are provided in the refrigerator compartment 11, and the refrigerator compartment 11 is divided into a plurality by the shelf 45 and the partition plate 46. The front surface of the refrigerating compartment 11 can be opened and closed by a rotary heat insulating door 3. The vegetable compartment 12, the upper part of the freezer compartment 13, and the lower part of the freezer compartment 13 are openable and closable by sliding-type heat-insulating doors 4, 5, and 6, respectively, so that the storage containers 54, 55, and 56 can be drawn out. ing.

冷凍室１３の後部には圧縮機２０が配されている。圧縮機２０には吐出パイプ２０ａを介して凝縮器（不図示）が連結されており、吸込パイプ２０ｂを介して冷却器２１、２５が直列に連結されている。凝縮器と冷却器２５は第１キャピラリーチューブ（不図示）を介して連結されている。冷却器２１、２５の間には第２キャピラリーチューブ（不図示）が配されている。 A compressor 20 is arranged at the rear of the freezer compartment 13. A condenser (not shown) is connected to the compressor 20 via a discharge pipe 20a, and coolers 21 and 25 are connected in series via a suction pipe 20b. The condenser and the cooler 25 are connected via a first capillary tube (not shown). A second capillary tube (not shown) is arranged between the coolers 21 and 25.

これにより冷凍サイクルが構成され、冷凍サイクル運転が行われると冷却器２１、２５が冷却されるようになっている。冷却器２１、２５の下方には冷却器２１、２５の除霜を行う除霜ヒータ６１、６２が設けられている。６３、６４はドレン受け部材である。 Thus, a refrigeration cycle is configured, and when the refrigeration cycle operation is performed, the coolers 21 and 25 are cooled. Defrosters 61 and 62 for defrosting the coolers 21 and 25 are provided below the coolers 21 and 25. 63 and 64 are drain receiving members.

また、凝縮器と第１キャピラリーチューブとの間には冷媒流の切換手段が設けられ、切換手段と冷却器２１とが第３キャピラリーチューブ（不図示）を介して連結されている。そして、切換手段を切り替えることにより、冷却器２１のみの冷却を可能にしている。 Further, means for switching the refrigerant flow is provided between the condenser and the first capillary tube, and the switching means and the cooler 21 are connected via a third capillary tube (not shown). By switching the switching means, only the cooler 21 can be cooled.

冷却器２１は冷気通路２３内に配されており、冷気通路２３は内箱２ｂと樹脂成形品から成るエバカバー３３とにより形成されている。冷気通路２３内の冷却器２１の上方には送風機２２が配されている。冷気通路２３は背面板３３ａに設けられた冷凍室１３への吐出口１３ａ及び戻り口１３ｂにより冷凍室１３と連通している。 The cooler 21 is disposed in the cool air passage 23, and the cool air passage 23 is formed by the inner box 2b and the evaporative cover 33 made of a resin molded product. A blower 22 is arranged above the cooler 21 in the cool air passage 23. The cool air passage 23 communicates with the freezer compartment 13 through a discharge port 13a and a return port 13b to the freezer compartment 13 provided on the back plate 33a.

冷却器２５は冷気通路２７内に配されている。冷気通路２７の下部は内箱２ｂと野菜室１２の背面板３４とにより形成されている。背面板３４は断熱部材から成り、冷却器２５に近設される野菜室１２の過冷却を防止している。冷気通路２７内の冷却器２５の上方には送風機２６が配されている。冷気通路２７は戻り口１２ｂにより野菜室１２と連通している。 The cooler 25 is arranged in the cool air passage 27. The lower part of the cool air passage 27 is formed by the inner box 2 b and the back plate 34 of the vegetable compartment 12. The back plate 34 is made of a heat insulating member and prevents the vegetable compartment 12 provided near the cooler 25 from being overcooled. A blower 26 is arranged above the cooler 25 in the cool air passage 27. The cool air passage 27 communicates with the vegetable compartment 12 through the return port 12b.

冷気通路２７の上部は氷温室１４の背面板３５に固着される断熱部材３６と内箱２ｂとにより形成されている。断熱部材３６には吐出口３６ａが設けられている。冷蔵室１１の正面図を図２に示すと、背面板３５には吐出口３６ａと同じ位置に吐出口３５ａが設けられている。吐出口３５ａ、３６ａにより冷蔵室１１は冷気通路２７と連通している。 The upper portion of the cold air passage 27 is formed by a heat insulating member 36 fixed to the back plate 35 of the ice temperature chamber 14 and the inner box 2b. The heat insulating member 36 is provided with a discharge port 36a. FIG. 2 shows a front view of the refrigerating compartment 11, and the rear plate 35 is provided with a discharge port 35a at the same position as the discharge port 36a. The refrigerator compartment 11 communicates with the cool air passage 27 through the discharge ports 35a and 36a.

冷気通路２７は冷蔵室１１の背面部分の冷気通路２８と連通している。図２において、冷気通路２８は略中央に配される中央通路２８ａ（第２通路）と、中央通路２８ａの両側部に設けられる側方通路２８ｂ（第１通路）とにリブ２８ｄにより分岐されている。リブ２８ｄは後述する背面板７０と一体に形成されている。また、冷気通路２７も冷気通路２８に対応して分岐通路２７ａ、２７ｂに分岐されている。 The cool air passage 27 communicates with a cool air passage 28 at the back of the refrigerator compartment 11. In FIG. 2, the cool air passage 28 is branched by a rib 28d into a central passage 28a (second passage) disposed substantially at the center and side passages 28b (first passages) provided on both sides of the central passage 28a. I have. The rib 28d is formed integrally with a back plate 70 described later. The cool air passage 27 is also branched into branch passages 27a and 27b corresponding to the cool air passage 28.

中央通路２８ａの下端には送風機２９が配されている。送風機２９の前面には冷蔵室１１に臨む送風機カバー４１が取り付けられている。送風機カバー４１には複数の開口部４１ａが形成されている。 A blower 29 is provided at the lower end of the central passage 28a. A blower cover 41 facing the refrigerator compartment 11 is attached to the front of the blower 29. The blower cover 41 has a plurality of openings 41a.

送風機２９部分の詳細図を図３に示すと、中央通路２８ａは、送風機２９により開口部４１ａを介して冷蔵室１１から取入れられる空気と、送風機２６（図１参照）により冷気通路２７を流通する冷気とが混流するようになっている。冷気通路２７を流通する冷気は送風機カバー４１の壁面４１ｂに衝突し、案内部４１ｃにより送風機２９の方向に導かれる。案内部４１ｃは、送風機カバー４１が金属の場合には切り起して一体に形成してもよい。 FIG. 3 shows a detailed view of the blower 29. The central passage 28a circulates the air taken in from the refrigerator compartment 11 through the opening 41a by the blower 29 and the cool air passage 27 by the blower 26 (see FIG. 1). Cold air is mixed. The cool air flowing through the cool air passage 27 collides with the wall surface 41b of the blower cover 41, and is guided toward the blower 29 by the guide portion 41c. When the blower cover 41 is made of metal, the guide portion 41c may be cut and raised to be integrally formed.

この時、送風機カバー４１の内面には相応の断熱部材を冷気通路２７からの冷気の流域に設け、結露対策としてもよい。また、送風機カバー４１を金属等により形成すると、中央通路２８ａを通る冷気の冷熱が送風機カバー４１から冷蔵室１１内に放出されることになる。 At this time, a suitable heat insulating member may be provided on the inner surface of the blower cover 41 in the flow area of the cool air from the cool air passage 27 to take measures against dew condensation. Further, when the blower cover 41 is formed of metal or the like, the cool heat of the cool air passing through the central passage 28 a is released from the blower cover 41 into the refrigerator compartment 11.

開口部４１ａは案内部４１ｃよりも上方に形成され、冷気通路２７を流通する冷気の進路外に配されている。これにより、冷気通路２７を流通する冷気が開口部４１ａから冷蔵室１１内へ侵入することを防止している。その結果、冷気漏れによる冷蔵室１１の局部の過冷却を防止できるようになっている。 The opening 41a is formed above the guide portion 41c, and is arranged outside the path of the cool air flowing through the cool air passage 27. This prevents the cool air flowing through the cool air passage 27 from entering the refrigerator compartment 11 through the opening 41a. As a result, it is possible to prevent overcooling of the local area of the refrigerator compartment 11 due to cold air leakage.

冷気通路２８は冷蔵室１１の内壁を形成する部材４２と内箱２ｂ上に設けられた背面板７０とにより形成されている。背面板７０は前記の背面板３５と一体に形成されている。部材４２は図５に示すような形状の熱伝導性を有する熱伝導部材（例えば、加工性が良く防錆効果の高いアルミニウムやその合金やステンレス等）から形成されている。 The cool air passage 28 is formed by a member 42 forming an inner wall of the refrigerator compartment 11 and a back plate 70 provided on the inner box 2b. The back plate 70 is formed integrally with the back plate 35. The member 42 is formed of a heat conductive member having a heat conductivity having a shape as shown in FIG. 5 (for example, aluminum, its alloy, stainless steel, etc., which have good workability and high rust prevention effect).

これにより蓄冷及び冷熱の放出を可能にしている。なお、前記熱伝導部材の厚みが厚い場合は蓄冷能力が上がり、強度も増加する。厚みが薄い場合は冷熱の放出効率が上がり、軽量化にも有利である。そのため、目的に応じて薄板材や厚板材を適時適所に選び設ければよい。 This enables cold storage and release of cold heat. When the thickness of the heat conducting member is large, the cold storage capacity increases and the strength also increases. When the thickness is small, the efficiency of discharging cold heat increases, which is advantageous for weight reduction. Therefore, a thin plate or a thick plate may be selected and provided in a timely and appropriate manner according to the purpose.

部材４２の表面に凹凸形状をプレス加工等により設けると、表面積を増加させることができる。これにより蓄冷や冷熱の放出量が増加して冷却効率の向上を図ることができる。更に、線状に連続する凹部または凸部を設けることにより、部材４２の強度を補強することができる。 When the uneven shape is provided on the surface of the member 42 by press working or the like, the surface area can be increased. As a result, the amount of cold storage or the release of cold heat increases, and cooling efficiency can be improved. Further, by providing the concave or convex portions that are linearly continuous, the strength of the member 42 can be reinforced.

また、部材４２の上端と下端部分の断面詳細図を図７、図８に示す。これらの図によると、部材４２は背面板７０に設けられた上取付部７１及び背面板３５に設けられた下取付部７２により係止される。上取付部７１のレバー部７１ａを手指で押上げると爪部７１ｂの係合が解除される。 7 and 8 show detailed cross-sectional views of the upper end and the lower end of the member 42. FIG. According to these figures, the member 42 is locked by the upper mounting portion 71 provided on the back plate 70 and the lower mounting portion 72 provided on the back plate 35. When the lever portion 71a of the upper mounting portion 71 is pushed up by a finger, the engagement of the claw portion 71b is released.

この状態で部材４２の上部を手前に倒して、上方に引上げることにより部材４２は下取付部７２からはずすことができ、部材４２は着脱自在になっている。これにより冷気通路２８や部材４２の冷気通路２８側の清掃等を容易に行うことができるようになっている。なお、部材４２の下部は断熱部材３６に固着されるシール材７３により密閉されている。 In this state, the member 42 can be detached from the lower mounting portion 72 by pulling the upper part of the member 42 forward and pulling it upward, and the member 42 is detachable. Thus, cleaning of the cold air passage 28 and the member 42 on the side of the cold air passage 28 can be easily performed. The lower part of the member 42 is sealed by a seal member 73 fixed to the heat insulating member 36.

また、前記制御装置１ｂと電気的に接続されている後述する温度検知手段７５は、前記部材４２上にはなく、その周辺に設けられているため、さらに、前記部材４２は着脱しやすくなっている。 Further, since a temperature detecting means 75 described later, which is electrically connected to the control device 1b, is not provided on the member 42 but provided around the member 42, the member 42 is further easily attached and detached. I have.

冷蔵室１１の上面断面図を図４に示すと、側方通路２８ｂを覆う部材４２の側方通路２８ｂ側の面には、側方通路２８ｂを通る冷気の冷熱の多くを部材４２に伝達させないように断熱部材２８ｃが配されている。側方通路２８ｂの側壁は背面板７０により形成されており、側壁には複数の開口部７０ａが設けられている。 FIG. 4 is a top cross-sectional view of the refrigerating compartment 11, and the surface of the member 42 that covers the side passage 28b on the side of the side passage 28b does not transmit much of the cold heat of the cool air passing through the side passage 28b to the member 42. The heat insulating member 28c is arranged as described above. The side wall of the side passage 28b is formed by the back plate 70, and the side wall is provided with a plurality of openings 70a.

背面板７０には部材４２の外側周辺を覆う壁面部７０ｃが形成されている。壁面部７０ｃには開口部７０ａと連通する複数の吐出部７０ｂが凹設されている。従って、吐出部７０ｂ及び開口部７０ａを介して、側方通路２８ｂは冷蔵室１１と連通し、冷気を冷蔵室１１に吐出できるようになっている。 On the back plate 70, a wall surface portion 70c that covers the outer periphery of the member 42 is formed. A plurality of discharge portions 70b communicating with the opening 70a are recessed in the wall surface portion 70c. Therefore, the side passage 28b communicates with the refrigerating room 11 through the discharging part 70b and the opening 70a, so that cold air can be discharged to the refrigerating room 11.

図２において、壁面部７０ｃは載置部７４に載置される棚４５と同じ高さ付近に形成され、棚４５上に載置される食品等が吐出部７０ｂに落下しないようになっている。そして、開口部７０ａは貯蔵物が側方通路２８ｂに落込まないようにスリット状になっている。また、背面板７０には冷気を吐出部７０ｂに導くリブ７０ｄが形成されている。なお、本図においては棚４５と仕切板４６は、それらの後方をわかりやすくするため、２点鎖線で描いている。 In FIG. 2, the wall portion 70c is formed in the vicinity of the same height as the shelf 45 placed on the placing portion 74 so that food or the like placed on the shelf 45 does not drop to the discharge portion 70b. . The opening 70a is formed in a slit shape so that the stored material does not fall into the side passage 28b. Further, a rib 70d for guiding cool air to the discharge portion 70b is formed on the back plate 70. Note that, in this drawing, the shelf 45 and the partition plate 46 are drawn by two-dot chain lines in order to make the rear of them easy to understand.

そして、冷蔵室１１は棚４５にて複数に区画され、そのうちの上下方向で中央よりの区画内の吐出部７０ｂ上方に温度検知手段７５は設けられている。なお、前記温度検知手段７５は例えばサーミスターからなり、背面板７０の壁面部７０ｃやその付近の一部を冷蔵室１１側に突出させ、その部をスリット状に開口させた開口部７０ｅの裏側（内箱２ｂ側）付近に温度検知手段７５は取り付けられている。 The refrigerator compartment 11 is divided into a plurality of sections by the shelf 45, and the temperature detecting means 75 is provided above the discharge section 70b in the section from the center in the vertical direction. The temperature detecting means 75 is made of, for example, a thermistor, and the wall surface 70c of the back plate 70 and a part of the vicinity thereof protrude toward the refrigerator compartment 11 side, and the back side of the opening 70e in which the portion is opened in a slit shape. The temperature detecting means 75 is mounted near (the inner box 2b side).

そのため、開口部７０ａを通り吐出部７０ｂから吐出された冷気は、温度検知手段７５には直接当たることなく、前記棚４５、４５で区画された空間の庫内空気と混ざりながら、前記棚４５に収められた貯蔵物を冷却した後、冷蔵室１１の下方にある貫通口３２ａに導かれ、前記棚４５の前方から下方へ流れる。 Therefore, the cool air discharged from the discharge portion 70b through the opening 70a does not directly hit the temperature detecting means 75, but mixes with the air in the compartment in the space defined by the shelves 45, 45, and After cooling the stored items, the stored items are guided to the through-hole 32a below the refrigerator compartment 11 and flow downward from the front of the shelf 45.

このとき、棚４５、４５で区画された空間の吐出部７０ｂから吐出された冷気と混ざった庫内空気が、前記温度検知手段７５周辺にも充満し、前記部材４２の冷熱の直接の影響もなく冷蔵室１１の庫内温度として検出される。なお、前記開口部７０ｅの冷蔵室１１側周辺には、吐出部７０ｂから吐出された冷気が温度検知手段７５に直接当たらないように、必要に応じて遮蔽リブ７０ｆが設けられている。 At this time, the air inside the refrigerator mixed with the cool air discharged from the discharge portion 70b of the space defined by the shelves 45, 45 also fills the vicinity of the temperature detecting means 75, and the direct influence of the cold heat of the member 42 is also reduced. And is detected as the temperature inside the refrigerator compartment 11. A shielding rib 70f is provided around the opening 70e as needed so that the cool air discharged from the discharge part 70b does not directly hit the temperature detecting means 75.

また、前記温度検知手段７５はその中心部が前記吐出部７０ｂの上方約５０ｍｍの位置にあり、棚４５の水平面裏面の下方約４０ｍｍの位置にあり、冷蔵室１１のほぼ平均室温に相当する庫内温度を検出する。 Further, the temperature detecting means 75 has a center located at a position of about 50 mm above the discharge section 70 b and at a position of about 40 mm below the back surface of the shelf 45 on a horizontal plane. Detect internal temperature.

なお、前記温度検知手段７５は、棚４５、４５で区画された同一区画内の吐出部７０ｂの上方１０ｍｍ以上、前記棚４５で上側にある棚４５の水平面裏面の下方２０ｍｍ以上離れていれば、前記吐出部７０ｂからの冷気流や上側の前記棚４５の裏面に漂う比較的暖かい冷気等の影響もなく、冷蔵室１１のほぼ平均室温に相当する庫内温度を検出する。 In addition, the temperature detecting means 75 is located 10 mm or more above the discharge unit 70 b in the same section defined by the shelves 45, 45, and 20 mm or more below the horizontal back surface of the shelf 45 above the shelf 45. The inside temperature of the refrigerator compartment 11 is detected, which is substantially equal to the average room temperature, without being affected by the cool airflow from the discharge section 70b or the relatively cool cool air floating on the back surface of the upper shelf 45.

そして、部材４２の冷熱で冷却された庫内の冷気は、前記部材４２の冷蔵室１１側付近を下方へおりるとともに、吐出部７０ｂから吐出された冷気と混ざりあいながら庫内の空間を流れるため、前記冷熱による冷気が直接前記温度検知手段７５に当たることもなく、さらに適正な温度に庫内を保つことができる。 Then, the cool air in the refrigerator cooled by the cold heat of the member 42 flows downward near the refrigerator compartment 11 side of the member 42 and flows through the space in the refrigerator while being mixed with the cool air discharged from the discharge unit 70b. Therefore, the cool air due to the cold does not directly hit the temperature detecting means 75, and the inside of the refrigerator can be kept at a more appropriate temperature.

なお、開口部７０ａと連通する前記吐出部７０ｂは、場合によっては、棚４５にて複数に区画された全ての空間に各々設ける必要はなく、前記冷蔵室１１の下方の空間には前記吐出部７０ｂを設けずにしておき、上方の棚４５、４５の２段のみに左右に開口部７０ａと連通する前記吐出部７０ｂを設け、前記棚４５の後端と冷蔵室１１の背面（部材４２の面も含む）部とに隙間を設けておくと、冷蔵室１１の前後の上方から冷気が下がり、下方の空間をも冷却し、送風機２９による庫内空気の撹拌効果と同時に、部材４２の冷熱効果も働き、前記冷蔵室１１は均一に冷却されることになる。 In some cases, it is not necessary to provide the discharge section 70b communicating with the opening 70a in each of the plurality of spaces partitioned by the shelf 45, and the discharge section 70b is provided in the space below the refrigerator compartment 11. The discharge section 70b communicating with the opening 70a is provided on the left and right only in the upper two stages of the shelves 45, 45, and the rear end of the shelf 45 and the back surface of the refrigerator compartment 11 (of the member 42) are not provided. If a gap is provided between the cooling unit 11 and the cooling unit 11, the cool air drops from above and below the refrigerating compartment 11, and also cools the space below the refrigerating compartment 11. The effect also works, and the refrigerating room 11 is uniformly cooled.

また、前記温度検知手段７５は左右方向を長手方向としたため、温度検知手段７５の上下方向の領域が少なくてすみ、吐出口の位置する領域を広くとれ、条件にあわせて開口部７０ａや吐出部７０ｂが設けられ、さらに庫内温度の均一化がはかれる。 Further, since the temperature detecting means 75 has a longitudinal direction in the left-right direction, the area in the vertical direction of the temperature detecting means 75 can be small, and the area where the discharge port is located can be widened. 70b is provided, and the temperature inside the refrigerator is made uniform.

また、前記吐出部７０ｂの前記開口部７０ａに通じる上側壁面部を、吐出部７０ｂ側へ行くほど下方になるように若干傾斜させて形成しておくと、吐出される冷気が下方へ流出するようになり、さらに、上方に設けられた温度検知手段７５への前記冷気の影響はなくなり、さらに適正な温度に庫内を保つことができる。なお、前記吐出部７０ｂの上部に前記遮蔽板７０ｆに相当する突出部を前方に行くほど下方に傾斜するように設けても前記同様の効果が得られる。 Further, if the upper wall surface of the discharge portion 70b communicating with the opening 70a is slightly inclined so as to be lower toward the discharge portion 70b side, the discharged cool air may flow downward. In addition, the influence of the cold air on the temperature detecting means 75 provided above is eliminated, and the inside of the refrigerator can be maintained at an appropriate temperature. The same effect as described above can be obtained by providing a protrusion corresponding to the shielding plate 70f on the upper part of the discharge part 70b so as to be inclined downward toward the front.

冷蔵室１１の天井部分には樹脂成形品から成る上面板４３と内箱２ｂにより天井ダクト５４が形成されている。天井ダクト５４は左右に並設されており、中央通路２８ａと連通している。中央通路２８ａを通る冷気は背面板７０に形成されるリブ７０ｇにより左右に拡散されて天井ダクト５４に導かれる。 A ceiling duct 54 is formed on the ceiling of the refrigerator compartment 11 by the upper plate 43 made of a resin molded product and the inner box 2b. The ceiling ducts 54 are arranged side by side on the left and right, and communicate with the central passage 28a. The cool air passing through the central passage 28a is diffused left and right by a rib 70g formed on the back plate 70 and guided to the ceiling duct 54.

そして、上面板４３の前後方向に複数設けられた天井吐出口４３ａにより左右に分散して冷気を吐出できるようになっている。中央通路２８ａを通る冷気は天井ダクト５４に流入する前に左右に拡散されているため、冷蔵室１１の背面板７０に近い位置に設けられた天井吐出口４３ａからも充分冷気が吐出される。 The plurality of ceiling outlets 43a provided in the front-rear direction of the upper surface plate 43 can distribute cold air in a dispersed manner to the left and right. Since the cool air passing through the central passage 28a is diffused right and left before flowing into the ceiling duct 54, the cool air is sufficiently discharged from the ceiling discharge port 43a provided at a position close to the back plate 70 of the refrigerator compartment 11.

そのため、冷蔵室１１の天井部の全域から冷気が降りることになり庫内温度の均一化に役立つ。なお、左右の天井ダクト５４の間には透明な照明カバー５３で覆われる照明灯５１が設けられている。 Therefore, cool air falls from the whole area of the ceiling of the refrigerator compartment 11, which helps to make the temperature in the refrigerator uniform. An illuminating lamp 51 is provided between the left and right ceiling ducts 54 and covered with a transparent illuminating cover 53.

また、前記部材４２は冷蔵室１１の背面の多くの領域をしめており、前記照明灯５１の反射板の役目をもはたしており、前記部材４２による照明灯５１の反射光は冷蔵室１１の多くの領域を照らす。そして、前記温度検知手段７５は前記部材４２以外の所に位置するため、部材４２は欠ける所なく充分広くとれ、前記反射板としての効果は充分得られる。 Further, the member 42 covers a large area on the back surface of the refrigerator compartment 11 and serves as a reflector of the illumination lamp 51. Illuminate the area. Further, since the temperature detecting means 75 is located at a place other than the member 42, the member 42 can be sufficiently wide without any missing part, and the effect as the reflector can be sufficiently obtained.

そして、前記天井ダクト５４を部材４２と同様のもの（例えば、熱伝導部材）にて形成されていると、天井ダクト５４の冷蔵室１１側全域からも冷熱効果による庫内への冷却が行われ、より庫内温度の均一化に役立ち、また、光の反射板としての効果も得られることは明白である。 If the ceiling duct 54 is formed of the same material as the member 42 (for example, a heat conducting member), cooling from the entire area of the ceiling duct 54 on the refrigerator room 11 side to the inside of the refrigerator by the cooling effect is performed. It is clear that the temperature in the refrigerator can be more uniform and the effect as a light reflecting plate can be obtained.

前記構成の冷蔵庫１において、冷凍室１３の庫内温度が上昇し、前記冷凍室１３に設けられた温度検知手段（不図示）で検出された温度が所定の温度（例えば−１８℃）を越えたとき、圧縮機２０および送風機２２が制御装置１ｂにて駆動されると、冷凍室１３内の空気は戻り口１３ｂから冷気通路２３に導かれる。該空気は冷却器２１と熱交換して冷却され、吐出口１３ａから冷凍室１３に流入する。これにより冷凍室１３内が所定の温度に冷却される。 In the refrigerator 1 having the above-described configuration, the temperature in the freezer compartment 13 rises, and the temperature detected by the temperature detecting means (not shown) provided in the freezer compartment 13 exceeds a predetermined temperature (for example, −18 ° C.). At this time, when the compressor 20 and the blower 22 are driven by the control device 1b, the air in the freezing room 13 is guided from the return port 13b to the cool air passage 23. The air is cooled by exchanging heat with the cooler 21 and flows into the freezing compartment 13 through the discharge port 13a. Thereby, the inside of the freezer compartment 13 is cooled to a predetermined temperature.

また、冷蔵室１１の庫内温度が上昇し、冷蔵室１１の背面に設けられた前記温度検知手段７５で検出された温度が所定の温度（例えば５℃）を越えたとき、圧縮機２０および送風機２６、２９が制御装置１ｂにて駆動されると、野菜室１２内の空気は戻り口１２ｂから冷気通路２７に導かれる。 Further, when the temperature inside the refrigerator compartment 11 rises and the temperature detected by the temperature detecting means 75 provided on the back of the refrigerator compartment 11 exceeds a predetermined temperature (for example, 5 ° C.), When the blowers 26 and 29 are driven by the control device 1b, the air in the vegetable compartment 12 is guided to the cool air passage 27 from the return port 12b.

該空気は冷却器２５と熱交換して冷却され冷気が生成される。該冷気の一部は開口部３５ａ、３６ａから氷温室１４に流入する。これにより氷温室１４内が例えば−１℃に冷却される。 The air exchanges heat with the cooler 25 and is cooled to generate cool air. Part of the cool air flows into the ice warming chamber 14 through the openings 35a and 36a. Thereby, the inside of the ice greenhouse 14 is cooled to, for example, -1 ° C.

他の冷気は中央通路２８ａ及び側方通路２８ｂに分岐して進行する。側方通路２８ｂを通る冷気はリブ７０ｄに案内されて吐出部７０ｂから冷蔵室１１内に吐出される。中央通路２８ａを通る冷気は、開口部４１ａから中央通路２８ａに導かれる冷蔵室１１内の空気と混流される。そして、天井ダクト５４を通り、天井吐出口４３ａから吐出される。 The other cool air branches off into the central passage 28a and the side passage 28b and proceeds. The cool air passing through the side passage 28b is guided by the rib 70d and is discharged from the discharge portion 70b into the refrigerator compartment 11. The cool air passing through the central passage 28a is mixed with the air in the refrigerating room 11 guided from the opening 41a to the central passage 28a. Then, the air passes through the ceiling duct 54 and is discharged from the ceiling outlet 43a.

また、中央通路２８ａ内を流通する冷気による冷熱の一部は部材４２に伝えられ、側方通路２８ｂの前面を含む全面から冷蔵室１１に冷熱として放出される。従って、部材４２からの冷熱と、吐出部７０ｂ及び天井吐出口４３ａから分散して吐出される冷気とにより、冷蔵室１１内が効率良く均一に冷却される。 In addition, a part of the cool heat generated by the cool air flowing through the central passage 28a is transmitted to the member 42, and is discharged as cool heat from the entire surface including the front surface of the side passage 28b to the refrigerator compartment 11. Therefore, the inside of the refrigerator compartment 11 is efficiently and uniformly cooled by the cool heat from the member 42 and the cool air dispersed and discharged from the discharge part 70b and the ceiling discharge port 43a.

冷蔵室１１内の空気は棚４５の間や棚４５の前面を通り氷温室１４の下方から開口部３２ａを介して冷気通路３０を流通し、野菜室１２内の前方に流入する。更に収納容器５４の前面から下方を通り、野菜室１２内が冷却される。そして、戻り口１２ｂから冷却器２５の下部に導かれて冷気が循環する。 The air in the refrigerator compartment 11 passes between the shelves 45 and the front of the shelf 45, flows through the cool air passage 30 from below the ice temperature chamber 14 through the opening 32a, and flows into the front of the vegetable compartment 12. Further, the inside of the vegetable compartment 12 is cooled down from the front of the storage container 54. Then, the cool air circulates from the return port 12b to the lower part of the cooler 25.

そして、前記温度検知手段７５の検出結果に基づいて圧縮機２０及び送風機２６が運転及び停止するよう制御装置１ｂで制御され、冷蔵室１１及び野菜室１２の温度は例えば３℃前後の温度に維持されるようになっている。 Then, the control device 1b controls the compressor 20 and the blower 26 to start and stop based on the detection result of the temperature detecting means 75, and keeps the temperature of the refrigerator compartment 11 and the vegetable compartment 12 at a temperature of about 3 ° C., for example. It is supposed to be.

また、前記温度検知手段７５で検出された温度が所定の温度（例えば５℃）を越えたとき、前記圧縮機２０及び送風機２６、２９が運転され、冷却器２５にて冷却された冷気により、冷蔵室１１及び野菜室１２が冷却され、温度検知手段７５で所定の検出温度（例えば１℃）になったとき、前記圧縮機２０及び送風機２６、２９が停止される。 Further, when the temperature detected by the temperature detecting means 75 exceeds a predetermined temperature (for example, 5 ° C.), the compressor 20 and the blowers 26 and 29 are operated, and the cool air cooled by the cooler 25 When the refrigerator compartment 11 and the vegetable compartment 12 are cooled and reach a predetermined detection temperature (for example, 1 ° C.) by the temperature detection means 75, the compressor 20 and the blowers 26 and 29 are stopped.

その後、温度検知手段７５で所定の検出温度（例えば３℃）になったとき、冷却器２５による冷却を停止したままで送風機２６、２９の一方または両方を運転するように制御装置１ｂで制御すると、部材４２に蓄積された冷熱により中央通路２８ａを通る冷気が冷却され、該冷気によって冷蔵室１１内の冷却が行われるため、長時間冷蔵室１１を低温に保て、圧縮機２０のＯＮ−ＯＦＦのサイクル数が削減され、圧縮機２０の起動時の多量な消費電力が削減でき、エネルギーの省力化につながる。 After that, when the temperature detection means 75 reaches a predetermined detection temperature (for example, 3 ° C.), the control device 1b controls one or both of the blowers 26 and 29 to operate while the cooling by the cooler 25 is stopped. The cool air accumulated in the member 42 cools the cool air passing through the central passage 28a, and the cool air cools the refrigerating room 11, so that the refrigerating room 11 can be kept at a low temperature for a long time and the ON- The number of OFF cycles is reduced, and a large amount of power consumption at the time of starting the compressor 20 can be reduced, leading to energy saving.

さらには、前記送風機２９の運転により、冷蔵室１１内の空気は撹拌され、貯蔵物への冷気送風が増し冷却効率も良好になり、また、庫内の冷気温度はさらに均一になる。なお、圧縮機２０を停止して送風機２６を運転する場合は、さらに冷却器２５の除霜をして冷蔵室１１内の加湿を行うこともできる。 Further, by the operation of the blower 29, the air in the refrigerator compartment 11 is agitated, the cooling air blowing to the storage increases, the cooling efficiency is improved, and the temperature of the cooling air in the refrigerator becomes more uniform. When the blower 26 is operated with the compressor 20 stopped, the cooler 25 can be further defrosted to humidify the inside of the refrigerator compartment 11.

なお、本実施形態によると、前記冷媒流の切換手段（不図示）により冷却器２１のみの冷却にて前記冷凍室１３のみを冷却することが可能であり、冷蔵室１１を冷却する場合は、前記切換手段にて冷却器２５、２１の冷却にて、冷蔵室１１、野菜室１２、冷凍室１３を冷却するようになっている。 According to the present embodiment, it is possible to cool only the freezer compartment 13 by cooling only the cooler 21 by the coolant flow switching means (not shown). By the cooling of the coolers 25 and 21 by the switching means, the refrigerator compartment 11, the vegetable compartment 12, and the freezing compartment 13 are cooled.

また、本実施形態によると、中央通路２８ａを通る冷気の冷熱の一部は熱伝導板として機能する部材４２を熱伝導し、全面から冷蔵室１１内に放出される。従って、冷蔵室１１は中央通路２８ａと側方通路２８ｂを覆う広い面積から一様に放出される冷熱により均一に冷却される。そして、前記部材４２内に前記温度検知手段７５が位置しないため、温度検知手段７５は前記冷熱による影響をうけにくく、より正確な冷蔵室１１の庫内温度を検出する。 Further, according to the present embodiment, a part of the cold heat of the cool air passing through the central passage 28a conducts heat through the member 42 functioning as a heat conducting plate, and is discharged into the refrigerator compartment 11 from the entire surface. Therefore, the refrigerating room 11 is uniformly cooled by cold heat uniformly discharged from a wide area covering the central passage 28a and the side passages 28b. Since the temperature detecting means 75 is not located in the member 42, the temperature detecting means 75 is hardly affected by the cold heat, and detects the temperature of the refrigerator compartment 11 more accurately.

この時、断熱部材２８ｃにより、側方通路２８ｂを通る冷気から部材４２に多くの冷熱は伝達されない。このため、冷気通路２７に多くの冷気を流した際に部材４２や吐出部７０ｂの結露を防止し、冷蔵室１１内の乾燥を防止することができる。そして、断熱部材２８ｃを設置する面積を可変することにより、所望の温度や流量の冷気を流通させることができる。 At this time, much heat is not transmitted to the member 42 from the cool air passing through the side passage 28b by the heat insulating member 28c. For this reason, when a lot of cool air flows into the cool air passage 27, dew condensation of the member 42 and the discharge portion 70b can be prevented, and drying in the refrigerator compartment 11 can be prevented. Then, by changing the area in which the heat insulating member 28c is provided, it is possible to flow cold air at a desired temperature and flow rate.

また、冷気通路２８を通る冷気の温度を低くするか冷気の流量を増やして冷却能力を上げることにより、中央通路２８ａ付近の部材４２の冷蔵室１１側に結露が生じる恐れのある場合や、部材４２の冷気による冷却を和らげるために、薄い断熱部材を中央通路２８ａの部材４２側に設けてもよい。 When the temperature of the cool air passing through the cool air passage 28 is lowered or the flow rate of the cool air is increased to increase the cooling capacity, there is a possibility that dew condensation may occur on the refrigerator chamber 11 side of the member 42 near the central passage 28a. A thin heat insulating member may be provided on the member 42 side of the central passage 28a in order to reduce the cooling by the cool air of the member 42.

また、吐出部７０ｂ及び天井吐出口４３ａは冷蔵室１１の背面及び上面に複数設けられるため、冷気が分散して冷蔵室１１に流入する。このため、冷蔵室１１は均一且つ迅速に冷却される。 Further, since a plurality of discharge units 70b and ceiling discharge ports 43a are provided on the back and upper surfaces of the refrigerator compartment 11, cold air is dispersed and flows into the refrigerator compartment 11. For this reason, the refrigerator compartment 11 is uniformly and rapidly cooled.

吐出部７０ｂは、部材４２を開口して形成してもよいが、本実施形態のように部材４２の外側周辺に設ける方が望ましい。即ち、正面側に開口しないため、第１に、冷気通路２８が覆われて美観が向上する。第２に、前面へ直接冷気が吐出されないので、側方通路２８ｂ内の騒音や開口部７０ａでの吐出風の音が正面へ直接出ず、それらの騒音の低減がなされる。 The discharge portion 70b may be formed by opening the member 42, but is preferably provided around the outside of the member 42 as in the present embodiment. That is, since it does not open to the front side, firstly, the cool air passage 28 is covered and the aesthetic appearance is improved. Secondly, since the cool air is not directly discharged to the front surface, the noise in the side passage 28b and the sound of the discharge wind at the opening 70a are not directly emitted to the front, and the noise is reduced.

第３に、部材４２に冷気吐出や温度検出等のための開口部がないため部材４２の全面が均一な冷熱の放出に寄与して更に庫内温度が均一となるとともに、照明灯５１等の光反射面としてもムラなく広範囲に利用できる。等の効果を得ることができる。 Thirdly, since the member 42 has no opening for discharging cold air or detecting temperature, the entire surface of the member 42 contributes to uniform discharge of cold heat, and the temperature inside the refrigerator becomes more uniform. It can be widely used evenly as a light reflecting surface. And the like.

また、中央通路２８ａに面した部材４２は冷気による冷熱が直接伝えられるが、側方通路２８ｂに面した部材４２は中央通路２８ａ部分から冷熱が伝えられる。このため、放出される冷熱は側方通路２８ｂ部分で若干減少し、冷蔵室１１内の温度ばらつきが生じる。 Further, the member 42 facing the central passage 28a is directly transmitted with cold heat by cold air, while the member 42 facing the side passage 28b is transmitted with cold heat from the central passage 28a. For this reason, the released cold heat slightly decreases in the side passage 28b, and the temperature inside the refrigerator compartment 11 varies.

そして、吐出部７０ｂを例えば中央通路２８ａ上に配するとこの温度ばらつきがより大きくなるが、本実施形態では吐出部７０ｂを中央通路２８ａの側壁を成すリブ２８ｄと冷蔵室１１の側壁との間の略中央に配している。これにより、側方通路２８ｂ部分の前方や冷蔵室１１の側壁付近を含めた領域を前記吐出部７０ｂからの冷気で冷却するので、前記温度ばらつきが低減されてより均一な冷熱放出による冷却を行うことができる。さらに、部材４２も吐出部７０ｂの配置を考慮した上で最大限の広さが採れ、双方の吐出部７０ｂの冷気吐出しと部材４２の冷熱放出とで冷蔵室１１内をより均一に冷却できる。 When the discharge section 70b is disposed on the central passage 28a, for example, the temperature variation becomes larger. In the present embodiment, the discharge section 70b is disposed between the rib 28d forming the side wall of the central passage 28a and the side wall of the refrigerator compartment 11. Almost in the center. Accordingly, the area including the front of the side passage 28b and the vicinity of the side wall of the refrigerator compartment 11 is cooled by the cool air from the discharge portion 70b, so that the temperature variation is reduced and the cooling is performed by more uniform cooling heat release. be able to. Further, the member 42 has a maximum size in consideration of the arrangement of the discharge portions 70b, and the inside of the refrigerator compartment 11 can be cooled more uniformly by discharging the cool air from both the discharge portions 70b and discharging the cold heat from the member 42. .

また、部材４２は図６に示すようなゼリー状や液状の保冷材４２ａを包装材４２ｂ、４２ｃにより封入した蓄冷部材にしてもよい。このようにすると、部材４２は冷気通路２８内を流通する冷気の冷熱でより蓄冷され、冷蔵室１１内の温度分布に応じて冷熱として放出する。従って、冷蔵室１１が均一に冷却される。 Alternatively, the member 42 may be a cold storage member in which a jelly-like or liquid cold insulator 42a as shown in FIG. 6 is enclosed by packaging materials 42b and 42c. By doing so, the member 42 is stored more cold by the cool heat of the cool air flowing through the cool air passage 28, and is discharged as cool heat according to the temperature distribution in the refrigerator compartment 11. Therefore, the refrigerator compartment 11 is cooled uniformly.

さらに、蓄冷部材により圧縮機２０の停止中や冷気通路２８内の冷気温度の変動に対して吸熱や放熱を行い、冷気通路２８内の冷気温度を維持することができるようになる。この時、蓄冷部材が冷蔵室１１の内壁を形成しているので冷蔵室１１のスペースを広くすることができ、冷蔵庫１の省スペース化を図ることができる。包装材４２ｂ、４２ｃを熱伝導性を有するアルミニウム合金やステンレスにするとより望ましい。 Further, the cool storage member absorbs heat and dissipates heat when the compressor 20 is stopped or when the temperature of the cool air in the cool air passage 28 fluctuates, so that the cool air temperature in the cool air passage 28 can be maintained. At this time, since the cold storage member forms the inner wall of the refrigerator compartment 11, the space of the refrigerator compartment 11 can be enlarged, and the space of the refrigerator 1 can be saved. It is more desirable that the packaging materials 42b and 42c be made of a thermally conductive aluminum alloy or stainless steel.

また、冷却器２５により低温に生成された冷気は、冷蔵室１１内の空気と混合することにより若干昇温される。これにより、部材４２や天井吐出口４３ａ付近に生じる結露や氷結をより防止することができ、冷蔵室１１及び野菜室１２の乾燥を防止することができる。 The cool air generated at a low temperature by the cooler 25 is slightly heated by mixing with the air in the refrigerator compartment 11. Thereby, dew condensation and icing generated near the member 42 and the ceiling discharge port 43a can be further prevented, and drying of the refrigerator compartment 11 and the vegetable compartment 12 can be prevented.

さらに、冷蔵室１１及び野菜室１２を冷却する冷却器２５と冷凍室１３を冷却する冷却器２１を設けることにより、冷気通路２７、２８を流通する冷気の温度を冷気通路２３内の冷気の温度より高く設定することができる。これにより、部材４２に生じる結露や氷結をより防止することができる。 Further, by providing a cooler 25 for cooling the refrigerator compartment 11 and the vegetable compartment 12 and a cooler 21 for cooling the freezer compartment 13, the temperature of the cool air flowing through the cool air passages 27 and 28 is reduced by the temperature of the cool air in the cool air passage 23. Can be set higher. Thereby, dew condensation and icing generated on the member 42 can be further prevented.

また、部材４２は冷蔵室１１の背面に立設されて上下方向に延在している。このため、断熱扉３の開閉回数が多く冷蔵室１１内の温度や湿度が非常に上昇した際に、部材４２に結露して水滴が生じても貯蔵物上に直接滴下することがない。従って、貯蔵物を傷めず、良好な保存状態を維持できる。 The member 42 is erected on the back of the refrigerator compartment 11 and extends vertically. For this reason, when the temperature and humidity in the refrigerator compartment 11 are extremely increased when the number of times of opening and closing of the heat insulating door 3 is large, even if dew is formed on the member 42 and water droplets are generated, they do not drop directly on the storage. Therefore, it is possible to maintain a good storage state without damaging the stored material.

この時、冷却器２５で冷却された冷気通路２８内の冷気の送風を停止すると、部材４２が冷蔵室１１内の温度に近づくとともに温度上昇により冷蔵室１１内が乾燥する。これにより、該水滴は部材４２や背面板３５を流下する間に一部が蒸発する。従って、再び冷蔵室１１内の湿度を上昇させることができる。さらに、部材４２の前方に空気流通可能な多孔性（例えば、小判穴、丸穴等）のフェンス状の防護壁を設けると、部材４２をさらに薄くできるので、冷熱の放出効果が向上し、キズ付防止や破損防止にもなる。 At this time, when the blowing of the cool air in the cool air passage 28 cooled by the cooler 25 is stopped, the temperature of the member 42 approaches the inside of the refrigerator compartment 11 and the inside of the refrigerator compartment 11 is dried due to the temperature rise. As a result, some of the water droplets evaporate while flowing down the member 42 and the back plate 35. Therefore, the humidity in the refrigerator compartment 11 can be increased again. Further, if a porous (for example, an oval hole, a round hole, etc.) fence-shaped protective wall is provided in front of the member 42, the member 42 can be made thinner, so that the effect of releasing cold heat is improved, and It also helps to prevent sticking and breakage.

次に、図９は第２実施形態の冷蔵庫を示す側面断面図である。説明の便宜上図１〜図４の第１実施形態と同一の部分には同一の符号を付している。冷蔵庫１は外部を覆う外箱２ａの内側に内箱２ｂが配され、外箱２ａと内箱２ｂとの隙間には発泡ウレタン等の断熱材２ｃが充填されている。 Next, FIG. 9 is a side sectional view showing a refrigerator of a second embodiment. For convenience of description, the same parts as those in the first embodiment of FIGS. 1 to 4 are denoted by the same reference numerals. The refrigerator 1 is provided with an inner box 2b inside an outer box 2a covering the outside, and a gap between the outer box 2a and the inner box 2b is filled with a heat insulating material 2c such as urethane foam.

そして、１ａは前記冷蔵庫１の運転を制御する制御装置１ｂを含む電装ボックスであり、前記制御装置１ｂは冷蔵庫１の後述する各々の電気部品と電気的に接続されている。また、冷蔵庫１の内部は上から冷蔵室１１、野菜室１２、冷凍室１３の順に区分けされている。 An electrical box 1a includes a control device 1b for controlling the operation of the refrigerator 1, and the control device 1b is electrically connected to respective electric components of the refrigerator 1 described later. The interior of the refrigerator 1 is divided into a refrigerator compartment 11, a vegetable compartment 12, and a freezer compartment 13 in this order from above.

野菜室１２と冷凍室１３は断熱部材から成る仕切枠１７及び断熱部材から成る仕切板１９に仕切られており、冷凍室１３はさらに断熱部材から成る仕切枠１８により上部と下部に仕切られている。冷蔵室１１と野菜室１２は断熱部材から成る仕切枠１６及び樹脂成形品から成る仕切板３１、３２によって仕切られている。仕切板３２には貫通口３２ａが設けられている。 The vegetable compartment 12 and the freezing compartment 13 are partitioned by a partition frame 17 made of a heat insulating member and a partition plate 19 made of a thermal insulating member. The freezing compartment 13 is further partitioned into an upper portion and a lower portion by a partition frame 18 made of a heat insulating member. . The refrigerator compartment 11 and the vegetable compartment 12 are partitioned by a partition frame 16 made of a heat insulating member and partition plates 31 and 32 made of a resin molded product. The partition plate 32 is provided with a through hole 32a.

冷蔵室１１の下部には仕切板４６で仕切られる隔離室である氷温室１４が設けられている。冷蔵室１１には複数の棚４５が設けられている。冷蔵室１１の前面は回動式の断熱扉３により開閉可能になっている。野菜室１２、冷凍室１３の上部及び冷凍室１３の下部は前面が夫々スライド式の断熱扉４、５、６により開閉可能になっており、収納容器５４、５５、５６を引出せるようになっている。 At the lower part of the refrigerating room 11, an ice temperature room 14, which is an isolation room partitioned by a partition plate 46, is provided. The refrigerator compartment 11 is provided with a plurality of shelves 45. The front surface of the refrigerating compartment 11 can be opened and closed by a rotary heat insulating door 3. The vegetable compartment 12, the upper part of the freezer compartment 13, and the lower part of the freezer compartment 13 can be opened and closed by sliding heat insulating doors 4, 5, and 6, respectively, so that the storage containers 54, 55, and 56 can be drawn out. ing.

冷凍室１３の後部には圧縮機２０が配されている。圧縮機２０には吐出パイプ２０ａを介して凝縮器（不図示）が連結されており、吸込パイプ２０ｂを介して冷却器２１が連結されている。凝縮器と冷却器２１はキャピラリーチューブ（不図示）を介して連結されている。 A compressor 20 is arranged at the rear of the freezer compartment 13. A condenser (not shown) is connected to the compressor 20 via a discharge pipe 20a, and a cooler 21 is connected via a suction pipe 20b. The condenser and the cooler 21 are connected via a capillary tube (not shown).

これにより冷凍サイクルが構成され、冷凍サイクル運転が行われると冷却器２１が冷却されるようになっている。冷却器２１の下方には冷却器２１の除霜を行う除霜ヒータ６２が設けられている。６４はドレン受け部材である。 Thus, a refrigeration cycle is configured, and when the refrigeration cycle operation is performed, the cooler 21 is cooled. A defrost heater 62 for defrosting the cooler 21 is provided below the cooler 21. 64 is a drain receiving member.

冷却器２１は冷気通路２３内に配されており、冷気通路２３の下部は内箱２ｂと樹脂成形品から成るエバカバー３３とにより形成されている。冷気通路２３内の冷却器２１の上方には送風機２２が配されている。冷気通路２３は背面板３３ａに設けられた吐出口１３ａ、１３ｃおよび戻り口カバー３３ｂに設けられた戻り口１３ｂにより冷凍室１３と連通している。 The cooler 21 is disposed in the cool air passage 23, and a lower portion of the cool air passage 23 is formed by the inner box 2b and the evaporative cover 33 made of a resin molded product. A blower 22 is arranged above the cooler 21 in the cool air passage 23. The cool air passage 23 communicates with the freezing compartment 13 through discharge ports 13a and 13c provided in the back plate 33a and a return port 13b provided in the return port cover 33b.

野菜室１２の背面は前述の仕切板１９に覆われており、冷気通路２３の上部の圧力室２３ａはエバカバー３３と仕切板１９とにより形成されている。断熱部材から成る仕切板１９により、冷却器２１に近設される野菜室１２の過冷却を防止している。 The back of the vegetable compartment 12 is covered by the above-mentioned partition plate 19, and the pressure chamber 23 a above the cold air passage 23 is formed by the evaporator cover 33 and the partition plate 19. The partitioning plate 19 made of a heat insulating member prevents the vegetable compartment 12 provided near the cooler 21 from being overcooled.

冷気通路２３は送風機２２の上方に配される冷気通路２８とダンパー６５を介して連通している。冷気通路２８の下部は氷温室１４の背面板３５に固着される断熱部材３６と内箱２ｂとにより形成されている。図１０に示すように、背面板３５と断熱部材３６には同じ位置に開口部３５ａ、３６ａが設けられている。開口部３５ａ、３６ａにより氷温室１４は冷気通路２８と連通している。 The cool air passage 23 communicates with the cool air passage 28 disposed above the blower 22 via a damper 65. The lower part of the cool air passage 28 is formed by the heat insulating member 36 fixed to the back plate 35 of the ice temperature chamber 14 and the inner box 2b. As shown in FIG. 10, openings 35a and 36a are provided at the same position in the back plate 35 and the heat insulating member 36. The ice temperature chamber 14 communicates with the cool air passage 28 by the openings 35a and 36a.

冷気通路２８は略中央に配される中央通路２８ａと、中央通路２８ａの両側部に設けられる側方通路２８ｂとにリブ２８ｄにより分岐されている。リブ２８ｄは後述する背面板７０と一体に形成されている。 The cool air passage 28 is branched by a rib 28d into a central passage 28a disposed substantially at the center and side passages 28b provided on both sides of the central passage 28a. The rib 28d is formed integrally with a back plate 70 described later.

冷気通路２８の上部は冷蔵室１１の内壁を形成する部材４２と内箱２ｂ上に設けられた背面板７０とにより形成されている。部材４２は第１実施形態と同様に、アルミニウム合金やステンレス等の熱伝導性を有する熱伝導部材から形成されている。 The upper portion of the cold air passage 28 is formed by a member 42 forming the inner wall of the refrigerator compartment 11 and a back plate 70 provided on the inner box 2b. The member 42 is formed of a heat conductive member having heat conductivity, such as an aluminum alloy or stainless steel, as in the first embodiment.

冷蔵室１１は前述の図４と同様に、側方通路２８ｂを覆う部材４２の内面には、側方通路２８ｂを通る冷気の冷熱の多くを部材４２に伝達させないように断熱部材２８ｃが配されている。側方通路２８ｂの側壁は背面板７０により形成されており、側壁には複数の開口部７０ａが設けられている。 In the refrigerating room 11, similarly to FIG. 4 described above, a heat insulating member 28c is arranged on the inner surface of the member 42 that covers the side passage 28b so as to prevent much of the cold heat of the cool air passing through the side passage 28b from being transmitted to the member 42. ing. The side wall of the side passage 28b is formed by the back plate 70, and the side wall is provided with a plurality of openings 70a.

背面板７０には部材４２の外側周辺を覆う壁面部７０ｃが形成されている。壁面部７０ｃには開口部７０ａと連通する複数の吐出部７０ｂが凹設されている。従って、吐出部７０ｂ及び開口部７０ａにより、側方通路２８ｂは冷蔵室１１と連通し、冷気を冷蔵室１１に吐出できるようになっている。 On the back plate 70, a wall surface portion 70c that covers the outer periphery of the member 42 is formed. A plurality of discharge portions 70b communicating with the opening 70a are recessed in the wall surface portion 70c. Therefore, the side passage 28b communicates with the refrigerating room 11 by the discharging part 70b and the opening 70a, so that the cool air can be discharged to the refrigerating room 11.

壁面部７０ｃは載置部７４に載置される棚４５と同じ高さ付近に形成され、棚４５に載置される食品等が吐出部７０ｂに落下しないようになっている。また、背面板７０には冷気を吐出部７０ｂに導くリブ７０ｄが形成されている。そして、開口部７０ａは貯蔵物が側方通路２８ｂに落込まないようにスリット状になっている。なお、図１０においては棚４５と仕切板４６は、それらの後方をわかりやすくするため、２点鎖線で描いている。 The wall surface portion 70c is formed near the same height as the shelf 45 placed on the placing portion 74, so that food or the like placed on the shelf 45 does not drop to the discharge portion 70b. Further, a rib 70d for guiding cool air to the discharge portion 70b is formed on the back plate 70. The opening 70a is formed in a slit shape so that the stored material does not fall into the side passage 28b. Note that, in FIG. 10, the shelf 45 and the partition plate 46 are drawn by two-dot chain lines in order to make them easy to see behind.

そして、冷蔵室１１は棚４５にて複数に区画され、そのうちの上下方向で中央よりの区画内の吐出部７０ｂ上方に温度検知手段７５は設けられている。なお、前記温度検知手段７５は例えばサーミスターからなり、背面板７０の壁面部７０ｃやその付近の一部を冷蔵室１１側に突出させ、その部をスリット状に開口させた開口部７０ｅの裏側（内箱２ｂ側）付近に温度検知手段７５は取り付けられている。 The refrigerator compartment 11 is divided into a plurality of sections by the shelf 45, and the temperature detecting means 75 is provided above the discharge section 70b in the section from the center in the vertical direction. The temperature detecting means 75 is made of, for example, a thermistor. The temperature detecting means 75 is mounted near (the inner box 2b side).

そして、上面板４３に設けられた天井吐出口４３ａにより左右に分散して冷気を吐出できるようになっている。左右の天井ダクト５４の間には透明な照明カバー５３で覆われる照明灯５１が設けられている。 Then, the cool air can be discharged in a dispersed manner to the left and right by a ceiling discharge port 43a provided in the upper surface plate 43. An illumination lamp 51 covered with a transparent illumination cover 53 is provided between the left and right ceiling ducts 54.

前記構成の冷蔵庫１において、冷凍室１３の庫内温度が上昇し、前記冷凍室１３に設けられた温度検知手段（不図示）で検出された温度が所定の温度（例えば−１８℃）を越えたとき、圧縮機２０および送風機２２が制御装置１ｂにて駆動されると、冷凍室１３内の空気は戻り口１３ｂから冷気通路２３に導かれる。該空気は冷却器２１と熱交換して冷却され、吐出口１３ａ、１３ｃから冷凍室１３に流入する。これにより冷凍室１３内が所定の温度に冷却される。 In the refrigerator 1 having the above-described configuration, the temperature in the freezer compartment 13 rises, and the temperature detected by the temperature detecting means (not shown) provided in the freezer compartment 13 exceeds a predetermined temperature (for example, −18 ° C.). Then, when the compressor 20 and the blower 22 are driven by the control device 1b, the air in the freezing room 13 is guided to the cool air passage 23 from the return port 13b. The air is cooled by exchanging heat with the cooler 21 and flows into the freezing compartment 13 through the discharge ports 13a and 13c. Thereby, the inside of the freezer compartment 13 is cooled to a predetermined temperature.

また、冷蔵室１１の庫内温度が上昇し、冷蔵室１１の背面に設けられた前記温度検知手段７５で検出された温度が所定の温度（例えば５℃）を越えたとき、制御装置１ｂにて圧縮機２０および送風機２２が駆動されダンパー６５を開くことにより、冷却器２１と熱交換した冷気はダンパー６５を介して冷却通路２８内を流通するようになり、該冷気の一部は開口部３５ａ、３６ａから氷温室１４に流入する。これにより氷温室１４内が例えば−１℃に冷却される。 When the temperature inside the refrigerator compartment 11 rises and the temperature detected by the temperature detecting means 75 provided on the back of the refrigerator compartment 11 exceeds a predetermined temperature (for example, 5 ° C.), the controller 1b When the compressor 20 and the blower 22 are driven to open the damper 65, the cool air that has exchanged heat with the cooler 21 flows through the cooling passage 28 through the damper 65, and a part of the cool air is It flows into the ice greenhouse 14 from 35a, 36a. Thereby, the inside of the ice greenhouse 14 is cooled to, for example, -1 ° C.

他の冷気は中央通路２８ａ及び側方通路２８ｂに分岐して進行する。側方通路２８ｂを通る冷気はリブ７０ｄに案内されて吐出部７０ｂから冷蔵室内に吐出される。中央通路２８ａを通る冷気は、天井ダクト５４を通り、天井吐出口４３ａから吐出される。 The other cool air branches off into the central passage 28a and the side passage 28b and proceeds. The cool air passing through the side passage 28b is guided by the rib 70d and is discharged from the discharge portion 70b into the refrigerator compartment. The cool air passing through the central passage 28a passes through the ceiling duct 54 and is discharged from the ceiling discharge port 43a.

また、中央通路２８ａ内を流通する冷気による冷熱の一部は部材４２に伝えられ、側方通路２８ｂの前面を含む全面から冷蔵室１１に冷熱として放出される。従って、部材４２からの冷熱と、吐出部７０ｂ及び天井吐出口４３ａから分散して吐出される冷気とにより冷蔵室１１内が効率良く均一に冷却される。 In addition, a part of the cool heat generated by the cool air flowing through the central passage 28a is transmitted to the member 42, and is discharged as cool heat from the entire surface including the front surface of the side passage 28b to the refrigerator compartment 11. Therefore, the inside of the refrigerator compartment 11 is efficiently and uniformly cooled by the cool heat from the member 42 and the cool air dispersed and discharged from the discharge part 70b and the ceiling discharge port 43a.

冷蔵室１１内の空気は棚４５の間や棚４５の前面を通り氷温室１４の下方から開口部３２ａを介して冷気通路３０を流通し、野菜室１２内の前方に流入する。更に収納容器５４の前面から下方を通り、野菜室１２内が冷却される。そして、流出口（不図示）からダクト（不図示）を通り冷却器２１の下部に導かれて冷気が循環する。図２と同様の温度検知手段７５で検出された（冷蔵室１１の）温度に応じてダンパー６５が開閉し、冷蔵室１１及び野菜室１２の温度を例えば３℃に維持するようになっている。 The air in the refrigerator compartment 11 passes between the shelves 45 and the front of the shelf 45, flows through the cool air passage 30 from below the ice temperature chamber 14 through the opening 32a, and flows into the front of the vegetable compartment 12. Further, the inside of the vegetable compartment 12 is cooled down from the front of the storage container 54. Then, cool air is circulated from an outlet (not shown) through a duct (not shown) to the lower part of the cooler 21. The damper 65 opens and closes in accordance with the temperature (of the refrigerator compartment 11) detected by the temperature detecting means 75 similar to that in FIG. 2, so that the temperatures of the refrigerator compartment 11 and the vegetable compartment 12 are maintained at, for example, 3 ° C. .

本実施形態によると、第１実施形態と同様に、部材４２は中央通路２８ａを通る冷気の冷熱の一部を熱伝導させて冷蔵室１１内に放出する熱伝導板として機能している。従って、冷蔵室１１は広い面積から一様に放出される冷熱により均一に冷却される。 According to the present embodiment, similarly to the first embodiment, the member 42 functions as a heat conductive plate that conducts a part of the cold heat of the cool air passing through the central passage 28a and discharges the cooled heat into the refrigerator compartment 11. Therefore, the refrigerator compartment 11 is uniformly cooled by the cool heat uniformly discharged from a wide area.

この時、断熱部材２８ｃにより側方通路２８ｂを通る冷気から部材４２に冷熱の多くは伝達されない。このため、冷気通路２７に多くの冷気を流しても部材４２や吐出部７０ｂに結露が生じることがない。断熱部材２８ｃを設置する面積を可変することにより、所望の温度や流量の冷気を流通させることができる。 At this time, much of the cold heat is not transmitted to the member 42 from the cool air passing through the side passage 28b by the heat insulating member 28c. For this reason, even if a large amount of cool air flows through the cool air passage 27, dew condensation does not occur on the member 42 and the discharge portion 70b. By varying the area in which the heat insulating member 28c is installed, it is possible to flow cold air at a desired temperature and flow rate.

また、吐出部７０ｂを部材４２の外側周辺に設けることにより、美観の向上、騒音を防止、全面から均一な冷熱の放出、及び光反射面として広範囲の利用を図ることができる。そして、吐出部７０ｂを中央通路２８ａの側壁を成すリブ２８ｄと冷蔵室１１の側壁との間の略中央に配しているので、温度ばらつきが低減され、より均一な冷却を行うことができる。部材４２は前記と同様に図６に示すような蓄冷部材にしてもよい。 Further, by providing the discharge portion 70b around the outside of the member 42, it is possible to improve aesthetic appearance, prevent noise, uniformly discharge cold heat from the entire surface, and use the light reflection surface in a wide range. And since the discharge part 70b is arrange | positioned in the substantially center between the rib 28d which comprises the side wall of the central passage 28a, and the side wall of the refrigerator compartment 11, temperature variation is reduced and more uniform cooling can be performed. The member 42 may be a cold storage member as shown in FIG.

本実施形態の中央通路２８ａに前述の図３に示す送風機２９を設けると、冷蔵室１１内の冷気と中央通路２８ａを通る冷気とが混合され、第１実施形態と同様の効果を得ることができる。 When the blower 29 shown in FIG. 3 described above is provided in the central passage 28a of the present embodiment, the cool air in the refrigerator compartment 11 and the cool air passing through the central passage 28a are mixed, and the same effect as in the first embodiment can be obtained. it can.

そして、温度検知手段７５および遮蔽リブ７０ｆを部材４２周辺の吐出部７０ｂ上方に設けてあるため、冷気吐出や温度検出等のための開口部もなく、広い領域に前記部材４２を設けることができ部材４２全面が均一な冷熱の放出に役立ち、庫内温度が均一となるとともに、光反射面としてもむらなく広範囲に利用でき、さらに、温度検知手段７５に関しては、前記部材４２の冷熱や庫内に吐出された冷気の影響もうけにくく、正確な庫内温度の検出ができ、庫内をより適正な温度に保てる冷蔵庫が得られる。 Since the temperature detecting means 75 and the shielding rib 70f are provided above the discharge portion 70b around the member 42, the member 42 can be provided in a wide area without an opening for discharging cold air or detecting temperature. The entire surface of the member 42 serves to uniformly emit cold, the temperature inside the refrigerator becomes uniform, and the light can be used evenly and widely as a light reflecting surface. It is difficult to produce the effect of the cool air discharged into the refrigerator, the temperature in the refrigerator can be accurately detected, and a refrigerator capable of keeping the refrigerator at a more appropriate temperature can be obtained.

また、前記温度検知手段７５は左右方向を長手方向としたため、温度検知手段７５の上下方向の領域が少なくてすみ、吐出口の位置する領域を広くとれ、条件にあわせて開口部７０ａや吐出部７０ｂが設けられ、さらに庫内温度の均一化がはかれ、前記吐出部７０ｂの前記開口部７０ａに通じる上側壁面部を、吐出部７０ｂ側へ行くほど下方になるように若干傾斜させて形成しておくと、吐出される冷気が下方へ流出するようになり、さらに、上方に設けられた温度検知手段７５への前記冷気の影響はなくなり、さらに適正な温度に庫内を保つことができる。 Further, since the temperature detecting means 75 has a longitudinal direction in the left-right direction, the area in the vertical direction of the temperature detecting means 75 can be small, and the area where the discharge port is located can be widened. 70b is provided, furthermore, the inside temperature is made uniform, and the upper wall surface part of the discharge part 70b which communicates with the opening part 70a is formed so as to be slightly inclined so as to be lower toward the discharge part 70b side. If this is done, the discharged cool air will flow downward, and further, the cool air will have no effect on the temperature detecting means 75 provided above, and the inside of the refrigerator can be kept at a more appropriate temperature.

また、第１、第２実施形態は、冷気通路２８を中央通路２８ａと２つの側方通路２８ｂとの３分割に分岐した実施例であるが、冷気通路２８を４個以上の分岐通路に分岐して冷気供給量に合わせて適所に断熱材を設けた場合であっても同様の効果を得ることができる。例えば、冷気通路２８を５分割とし、中央部以外に断熱部材を上記と同様に設ける。そして、左右の各２通路の内、中央側の通路を通って上昇する冷気を外側の通路を通って下降させて冷蔵室１１内に吐出するようにしてもよい。 Further, the first and second embodiments are examples in which the cool air passage 28 is branched into three parts of a central passage 28a and two side passages 28b, but the cool air passage 28 is branched into four or more branch passages. The same effect can be obtained even when a heat insulating material is provided at an appropriate position according to the supply amount of cold air. For example, the cold air passage 28 is divided into five sections, and a heat insulating member is provided in the same manner as described above except for the central portion. Then, of the two passages on the left and right sides, the cool air that rises through the central passage may be lowered through the outer passage and discharged into the refrigerator compartment 11.

また、前記氷温室１４は冷気量の調整にて他の温度帯の隔離室（例えば：パーシャル室＝−３℃、野菜室＝３℃）となるようにしてもよい。 Further, the ice temperature chamber 14 may be an isolation chamber of another temperature zone (for example: partial room = -3 ° C., vegetable room = 3 ° C.) by adjusting the amount of cold air.

なお、本発明において、冷気通路を通る冷気による冷熱の一部が部材を介して貯蔵室内に放出されるとは、冷気通路を通る冷気の一部が部材から吸熱して該部材を冷却し、部材が貯蔵室内から吸熱して貯蔵室内を冷却することを意味する。 In the present invention, when a part of the cold heat due to the cool air passing through the cool air passage is released into the storage chamber via the member, a part of the cool air passing through the cool air passage absorbs heat from the member to cool the member, This means that the member absorbs heat from the storage chamber and cools the storage chamber.

また、前記で左右方向とは、冷蔵庫を正面から見て左右の方向を意味し、前後方向とは、冷蔵庫を正面から見て前後の方向を意味する。 In addition, the left-right direction means the left-right direction when the refrigerator is viewed from the front, and the front-rear direction means the front-back direction when the refrigerator is viewed from the front.

本発明の第１実施形態の冷蔵庫の側面断面図である。It is a side sectional view of the refrigerator of a 1st embodiment of the present invention. 本発明の第１実施形態の冷蔵庫の冷蔵室の正面図である。It is a front view of the refrigerator compartment of the refrigerator of a 1st embodiment of the present invention. 本発明の第１実施形態の冷蔵庫の要部詳細図である。It is a principal part detailed view of the refrigerator of 1st Embodiment of this invention. 本発明の第１実施形態の冷蔵庫の上面断面図である。It is an upper surface sectional view of the refrigerator of a 1st embodiment of the present invention. 本発明の第１実施形態の冷蔵庫の部材を示す斜視図である。It is a perspective view showing the member of the refrigerator of a 1st embodiment of the present invention. 本発明の第１実施形態の冷蔵庫の他の部材を示す斜視図である。It is a perspective view showing other members of a refrigerator of a 1st embodiment of the present invention. 本発明の第１実施形態の冷蔵庫の部材の要部断面図である。It is principal part sectional drawing of the member of the refrigerator of 1st Embodiment of this invention. 本発明の第１実施形態の冷蔵庫の部材の要部断面図である。It is principal part sectional drawing of the member of the refrigerator of 1st Embodiment of this invention. 本発明の第２実施形態の冷蔵庫の側面断面図である。It is a side sectional view of a refrigerator of a 2nd embodiment of the present invention. 本発明の第２実施形態の冷蔵庫の冷蔵室の正面図である。It is a front view of the refrigerator of the refrigerator of 2nd Embodiment of this invention.

符号の説明Explanation of reference numerals

１１冷蔵室（貯蔵室）
２１、２５冷却器
２３、２７、２８、３０冷気通路
４２部材
４５棚
７０ｂ吐出部（吐出口）
７５温度検知手段 11 refrigerator room (storage room)
21, 25 cooler 23, 27, 28, 30 cool air passage 42 member 45 shelf 70b discharge unit (discharge port)
75 Temperature detection means

Claims

貯蔵物を収納する貯蔵室と、前記貯蔵室に流入する冷気を生成する冷却器と、該冷気を前記貯蔵室に導く冷気通路と、前記冷気通路内を流通する冷気による冷熱を貯蔵室内に放出する部材と、前記部材の周辺に温度検知手段を設けたことを特徴とする冷蔵庫。 A storage room for storing the stored items, a cooler for generating cool air flowing into the storage room, a cool air passage for guiding the cool air to the storage room, and discharging cold heat generated by the cool air flowing in the cool air passage into the storage room. And a temperature detecting means provided around the member.

貯蔵物を収納する貯蔵室と、前記貯蔵室に流入する冷気を生成する冷却器と、該冷気を前記貯蔵室に導くとともに前記貯蔵室と隔壁を介して設けられる冷気通路と、前記隔壁の少なくとも一部を形成して前記冷気通路内を流通する冷気による冷熱を貯蔵室内に放出する部材と、前記部材の周辺に冷気の吐出口を設け、前記吐出口の上方に温度検知手段を設けたことを特徴とする冷蔵庫。 A storage room for storing a storage object, a cooler that generates cool air flowing into the storage room, a cool air passage provided through the storage room and the partition wall while guiding the cool air to the storage room, and at least one of the partition walls. A member that forms a part and discharges the cold generated by the cool air flowing through the cool air passage into the storage chamber; a discharge port for the cool air provided around the member; and a temperature detection unit provided above the discharge port. A refrigerator characterized by the following.

貯蔵物を収納する貯蔵室と、前記貯蔵室に流入する冷気を生成する冷却器と、該冷気を前記貯蔵室に導くとともに前記貯蔵室と隔壁を介して設けられる冷気通路と、前記隔壁の少なくとも一部を形成して前記冷気通路内を流通する冷気による冷熱を貯蔵室内に放出する部材と、前記貯蔵室には棚を設け、前記部材の周辺で前記棚にて区画された区画内に冷気の吐出口を設け、前記吐出口の上下方向で中央寄りの吐出口の上方に温度検知手段を設けたことを特徴とする冷蔵庫。 A storage room for storing a storage object, a cooler that generates cold air flowing into the storage room, a cool air passage provided through the storage room and the partition wall while guiding the cool air to the storage room, and at least one of the partition walls. A member that forms a part and discharges the cold generated by the cool air flowing through the cool air passage into the storage room; and a shelf provided in the storage room, and the cool air flows into a section defined by the shelf around the member. A refrigerator, wherein a temperature detecting means is provided above the discharge port near the center in the vertical direction of the discharge port.

前記吐出口は前記部材の左右方向の周辺に設け、前記冷気吐出口の上方に温度検知手段を設け、前記温度検知手段は左右方向を長手方向としたことを特徴とする請求項２または請求項３に記載の冷蔵庫。 The said discharge port was provided in the periphery of the left-right direction of the said member, The temperature detection means was provided above the said cool air discharge port, and the said temperature detection means made the left-right direction the longitudinal direction, The Claims 2 or 3 characterized by the above-mentioned. 3. The refrigerator according to 3.

上方に温度検知手段を設けた前記吐出口の通路の上側は、前方に行くほど下方へ傾斜させたことを特徴とする請求項２若しくは請求項３または請求項４に記載の冷蔵庫。 5. The refrigerator according to claim 2, wherein an upper side of the passage of the discharge port provided with a temperature detecting means at an upper side is inclined downward as going forward.