JP2018013279A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator capable of suppressing deterioration of heat insulation performance of a heat insulation partitioning wall between a refrigeration chamber and a freezing chamber, and also quickly detecting, with a thermistor, that foods are stored, to enable quick freezing automatically.SOLUTION: A refrigerator includes: a heat insulation box configured to form a freezing chamber; a freezing cycle configured to generate cold air; a cold air supply passage configured to supply cold air from the freezing cycle to the freezing chamber by a blower fan; and a heat insulation partitioning wall configured to partition between a refrigeration chamber and the freezing chamber. The freezing chamber includes: a left upper freezing chamber 3; a right upper freezing chamber 4 provided on a lateral side of the left upper freezing chamber; a vertical partitioning part 53 configured to partition between the left upper freezing chamber and the right upper freezing chamber; and a lower freezing chamber 5 provided below the vertical partitioning part. The refrigerator is characterized in that at a position of being recessed above a lower surface of the vertical partitioning part by a predetermined distance, provided is a thermistor 50 configured to measure a temperature in the freezing chamber.SELECTED DRAWING: Figure 5

Description

本発明は食品や飲料水等を冷蔵或いは冷凍して貯留する冷蔵庫に関するものである。   The present invention relates to a refrigerator for storing food, drinking water or the like by refrigeration or freezing.

最近では核家族化や共働き夫婦の増加等の家庭環境の変化により、冷凍室での冷凍保存法が多様化する傾向にある。家庭での冷凍室の使い方には、冷凍温度帯で販売されていた食品を購入して貯蔵するこれまでの使い方の他に、買い溜めした食品、例えば肉類の急速冷凍保存、或いは調理した料理の急速冷凍保存といった急速冷凍モードを主体とする使い方が提案されている。   Recently, due to changes in the home environment such as the nuclear family and the increase in couples working together, freezing storage methods in freezer rooms tend to diversify. In addition to the conventional usage of purchasing and storing food sold in the freezing temperature range, the use of the freezer in the home includes the quick freezing preservation of meat such as meat or cooking A method of using the quick freezing mode such as quick freezing has been proposed.

このような冷凍室の使い方として、例えば、特許文献１においては、調理した温度の高い食品が、冷凍室に収納されたのを温度検知手段で検出すると、圧縮機を駆動して急速に冷却し、食品が所定温度まで冷却されたのを温度検知手段で検出すると、圧縮機による急速冷凍運転を停止する冷凍方法が示されている。   As a method of using such a freezer, for example, in Patent Document 1, when the temperature detection means detects that a cooked food with a high temperature is stored in the freezer, the compressor is driven to cool rapidly. A freezing method is shown in which when the temperature detecting means detects that the food has been cooled to a predetermined temperature, the quick freezing operation by the compressor is stopped.

ここで、特許文献１の段落００３１には「赤外線センサ１２６は、冷凍室１０３の天井面の上部断熱仕切板１０４に埋設され、食品１２５や蓄冷材１２４などから放射される赤外線の放射量により、被測定物の温度を測定するものである。」との記載があり、温度検知手段が赤外線センサであると説明されている。   Here, paragraph 0031 of Patent Document 1 states that “the infrared sensor 126 is embedded in the upper heat insulating partition plate 104 on the ceiling surface of the freezer compartment 103, and the amount of infrared radiation emitted from the food 125, the cold storage material 124, and the like, The temperature detecting means is an infrared sensor. "

特開２０１０−２５５３２号公報JP 2010-25532 A

上記特許文献１に記載の冷蔵庫は、下部冷凍室の上側に隣設される上部冷凍室に、温度の高い食品を収納して急速冷凍するものである。ここで、上部冷凍室の冷却能力を高めると、その上方に位置する冷蔵室が冷え過ぎる可能性があるので、上部冷凍室と冷蔵室との間に、断熱性能を強化した断熱仕切壁が必要となる。しかし上記特許文献１では、この断熱仕切壁に温度検知手段を設けているので、その部分の断熱性能が低下してしまう。   The refrigerator described in Patent Document 1 stores food at a high temperature in an upper freezer adjacent to the upper side of the lower freezer and rapidly freezes it. Here, if the cooling capacity of the upper freezer compartment is increased, the refrigerator compartment located above it may be too cold, so a heat insulating partition wall with enhanced heat insulation performance is required between the upper freezer compartment and the refrigerator compartment. It becomes. However, in the said patent document 1, since the temperature detection means is provided in this heat insulation partition wall, the heat insulation performance of the part will fall.

また、上記特許文献１では温度検知手段として赤外線センサを用いることを前提とした構成が開示されているが、赤外線センサに代えサーミスタを用いた場合に適した構成は開示されていない。   Moreover, although the said patent document 1 is disclosing the structure predicated on using an infrared sensor as a temperature detection means, the structure suitable when using a thermistor instead of an infrared sensor is not disclosed.

本発明は、上述の課題に鑑みてなされたものであり、その目的は、冷蔵室と冷凍室の間の断熱仕切壁の断熱性能の低下を抑制しつつ、サーミスタを用いて食品が収納されたことを素早く検出し自動的に急速冷凍できる冷蔵庫を提供することにある。   The present invention has been made in view of the above-described problems, and the object thereof is to store food using a thermistor while suppressing a decrease in the heat insulation performance of the heat insulating partition wall between the refrigerator compartment and the freezer compartment. An object of the present invention is to provide a refrigerator that can quickly detect such a situation and automatically quick-frozen.

上記目的を達成するために、本発明の冷蔵庫は、冷蔵室及び冷凍室を形成する断熱箱体と、冷気を生成する冷凍サイクルと、前記冷凍サイクルからの冷気を送風ファンによって前記冷蔵室及び前記冷凍室に供給する冷気供給路と、前記冷蔵室と前記冷凍室を区画する断熱仕切壁とを備え、前記冷凍室は、左上部冷凍室と、該左上部冷凍室の側方に設けられた右上部冷凍室と、前記左上部冷凍室と前記右上部冷凍室を仕切る縦仕切部と、該縦仕切部の下方に設けられた下部冷凍室と、を備え、前記縦仕切部の下面よりも所定距離だけ上方に凹んだ位置に、前記冷凍室の温度を測定するサーミスタが設けられるものとした。   In order to achieve the above object, a refrigerator according to the present invention includes a heat insulating box that forms a refrigerator compartment and a freezer compartment, a refrigeration cycle that generates cold air, and cool air from the refrigeration cycle by a blower fan. A cold air supply path that supplies the freezer compartment, and a heat insulating partition wall that divides the refrigerator compartment and the freezer compartment, the freezer compartment is provided on the left upper freezer compartment and on the side of the upper left freezer compartment. An upper right freezer; a vertical partition that partitions the upper left freezer and the upper right freezer; and a lower freezer provided below the vertical partition; A thermistor for measuring the temperature of the freezer compartment is provided at a position recessed upward by a predetermined distance.

本発明によれば、上部冷凍室と冷蔵室又は野菜室との間の断熱性能の低下を抑制しつつ、食品が収納されたら自動的に急速冷凍できる冷蔵庫を提供することが可能となる。   ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the refrigerator which can be quick-frozen automatically, if food is accommodated, suppressing the fall of the heat insulation performance between an upper freezer compartment, a refrigerator compartment, or a vegetable compartment.

本発明が適用される冷蔵庫の正面外観図である。It is a front external view of the refrigerator to which the present invention is applied. 図１に示す冷蔵庫の縦断面を示す縦断面図である。It is a longitudinal cross-sectional view which shows the longitudinal cross-section of the refrigerator shown in FIG. 図１に示す冷蔵庫の庫内の背面内部の構成を示す正面図である。It is a front view which shows the structure inside the back surface in the store | warehouse | chamber of the refrigerator shown in FIG. 一実施例の冷凍室の要部拡大断面図である。It is a principal part expanded sectional view of the freezer compartment of one Example. 一実施例の冷凍室に取り付けた縦仕切部の拡大図である。It is an enlarged view of the vertical partition attached to the freezer compartment of one Example. 一実施例の縦仕切部の斜視図である。It is a perspective view of the vertical partition part of one Example. 一実施例の縦仕切部の底面部材の上面図、側面図、下面図である。It is the upper side figure, side view, and bottom view of the bottom face member of the vertical partition part of one Example. 一実施例の縦仕切部の底面部材の上面斜視図、下面斜視図である。It is the upper surface perspective view and lower surface perspective view of the bottom face member of the vertical partition part of one Example. 食品の収納の有無を判断して急速冷却運転を行うタイムチャートである。It is a time chart which performs rapid cooling operation by judging the presence or absence of food storage. 図９に示すタイムチャートを実行するフローチャートである。It is a flowchart which performs the time chart shown in FIG. 他のフローに基づく急速冷却運転を行うタイムチャートである。It is a time chart which performs rapid cooling operation based on other flows. 図１１に示すタイムチャートを実行するフローチャートである。It is a flowchart which performs the time chart shown in FIG.

以下、本発明の実施形態について図面を用いて詳細に説明するが、本発明は以下の実施形態に限定されることなく、本発明の技術的な概念の中で種々の変形例や応用例をもその範囲に含むものである。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments, and various modifications and application examples are included in the technical concept of the present invention. Is also included in the range.

本発明の具体的な実施例を説明する前に、本発明が適用される冷蔵庫の構成を図１乃至図３に基づいて説明する。図１は冷蔵庫の正面外観図であり、図２は図１の縦断面を示す断面図であり、図３は図１に示す冷蔵庫の庫内の背面内部の構成を示す正面図である。尚、図２においては製氷室の断面は示されていない。   Before describing specific embodiments of the present invention, the configuration of a refrigerator to which the present invention is applied will be described with reference to FIGS. FIG. 1 is a front external view of the refrigerator, FIG. 2 is a cross-sectional view showing a longitudinal section of FIG. 1, and FIG. 3 is a front view showing a configuration inside the back of the refrigerator shown in FIG. In FIG. 2, the cross section of the ice making chamber is not shown.

図１、及び図２において、冷蔵庫１は、上方から冷蔵室２、製氷室（冷凍室の一部である）３及び上部冷凍室４、下部冷凍室５、野菜室６を有する。ここで、製氷室３と上部冷凍室４は、冷蔵室２と下部冷凍室５との間に左右に並べて設けている。一例として、冷蔵室２はおよそ＋３℃、野菜室６はおよそ＋３℃〜＋７℃の冷蔵温度帯の貯蔵室である。また、製氷室３、上部冷凍室４及び下部冷凍室５は、およそ−１８℃の冷凍温度帯の貯蔵室である。尚、製氷室３と上部冷凍室４と間には縦方向に配置された、後述する縦仕切部５３が設けられており、この縦仕切部５３を境に製氷室３と上部冷凍室４とが左右方向に並設されている。また、上部冷凍室４は、その下方に隣設される下部冷凍室５より幅寸法が小さく、下部冷凍室５より容積が小さく、少量の食品が冷凍、貯蔵されるものである。   1 and 2, the refrigerator 1 includes a refrigerator room 2, an ice making room (a part of the freezer room) 3, an upper freezer room 4, a lower freezer room 5, and a vegetable room 6 from above. Here, the ice making chamber 3 and the upper freezer compartment 4 are provided side by side between the refrigerator compartment 2 and the lower freezer compartment 5. As an example, the refrigerating room 2 is a storage room having a refrigeration temperature range of about + 3 ° C. and the vegetable room 6 is a refrigerating temperature zone of about + 3 ° C. to + 7 ° C. Further, the ice making room 3, the upper freezing room 4, and the lower freezing room 5 are storage rooms in a freezing temperature zone of approximately −18 ° C. A vertical partition 53, which will be described later, is provided between the ice making chamber 3 and the upper freezing chamber 4, and the ice making chamber 3 and the upper freezing chamber 4 are separated by the vertical partition 53. Are juxtaposed in the left-right direction. The upper freezer compartment 4 is smaller in width than the lower freezer compartment 5 adjacent to the lower part thereof, has a smaller volume than the lower freezer compartment 5, and a small amount of food is frozen and stored.

冷蔵室２は前方側に、左右に分割された観音開き（いわゆるフレンチ型）の冷蔵室扉２ａ、２ｂを備えている。製氷室３、上部冷凍室４、下部冷凍室５、野菜室６は夫々引き出し式の製氷室扉３ａ、上部冷凍室扉４ａ、下部冷凍室扉５ａ、野菜室扉６ａを備えている。   The refrigerating room 2 includes, on the front side, refrigerating room doors 2a and 2b with double doors (so-called French type) divided into left and right. The ice making room 3, the upper freezing room 4, the lower freezing room 5, and the vegetable room 6 are each provided with a drawer type ice making room door 3a, an upper freezing room door 4a, a lower freezing room door 5a, and a vegetable room door 6a.

また、各扉の貯蔵室側の面には、各扉の外縁に沿うように磁石が内蔵されたパッキン（図示せず）を設けており、各扉の閉鎖時、鉄板で形成された冷蔵庫外箱のフランジや各仕切り鉄板に密着し貯蔵室内への外気の侵入、及び貯蔵室からの冷気の漏れを抑制する構成とされている。   In addition, a packing (not shown) with magnets built in along the outer edge of each door is provided on the surface of each door on the storage room side. When each door is closed, the outside of the refrigerator formed of an iron plate is provided. It is set as the structure which closely_contact | adheres to the flange of a box and each partition iron plate, and suppresses the penetration | invasion of the external air into a storage chamber, and the leakage of the cold air from a storage chamber.

ここで、図２に示すように冷蔵庫本体１０の下部には機械室１１が形成され、この中に圧縮機１２が内蔵されている。この圧縮機１２は、後述する冷却器１９とともに冷蔵庫１の冷凍サイクルを構成する。また、冷却器収納室１３と機械室１１には水抜き通路１４によって連通され、凝縮水が排出できるようになっている。   Here, as shown in FIG. 2, the machine room 11 is formed in the lower part of the refrigerator main body 10, and the compressor 12 is incorporated in this. This compressor 12 comprises the refrigerating cycle of the refrigerator 1 with the cooler 19 mentioned later. The cooler storage chamber 13 and the machine chamber 11 are communicated with each other by a drain passage 14 so that condensed water can be discharged.

図２に示すように、冷蔵庫本体１０の庫外と庫内は、内箱と外箱との間に発泡断熱材（発泡ポリウレタン）を充填することにより形成される断熱箱体１５により隔てられている。また冷蔵庫本体１０の断熱箱体１５は複数の真空断熱材１６を実装している。冷蔵庫本体１０は、上側断熱仕切壁１７ａにより冷蔵室２と上部冷凍室４及び製氷室３（図１参照、図２中で製氷室３は図示されていない）とが区画され、下側断熱仕切壁１７ｂにより下部冷凍室５と野菜室６とが区画されている。   As shown in FIG. 2, the outside of the refrigerator body 10 and the inside of the refrigerator are separated by a heat insulating box 15 formed by filling a foam heat insulating material (foamed polyurethane) between the inner box and the outer box. Yes. Further, the heat insulating box 15 of the refrigerator body 10 has a plurality of vacuum heat insulating materials 16 mounted thereon. The refrigerator main body 10 is divided into a refrigerator compartment 2, an upper freezer compartment 4 and an ice making chamber 3 (see FIG. 1, the ice making chamber 3 is not shown in FIG. 2) by an upper heat insulating partition wall 17a. The lower freezer compartment 5 and the vegetable compartment 6 are partitioned by the wall 17b.

また、下部冷凍室５の上部には横仕切部１８を設けている。横仕切部１８は、製氷室３及び上部冷凍室４と下部冷凍室５とを上下方向に仕切っている。ただ、製氷室３、上部冷凍室４及び下部冷凍室５は流体的につながれているので、同じ冷気が供給されている。また、横仕切部１８の上部には、製氷室３と上部冷凍室４との間を左右方向に仕切る縦仕切部５３を設けている。   In addition, a horizontal partition 18 is provided in the upper part of the lower freezer compartment 5. The horizontal partition 18 partitions the ice making chamber 3 and the upper freezing chamber 4 and the lower freezing chamber 5 in the vertical direction. However, since the ice making chamber 3, the upper freezing chamber 4, and the lower freezing chamber 5 are fluidly connected, the same cold air is supplied. In addition, a vertical partition 53 that partitions the ice making chamber 3 and the upper freezing chamber 4 in the left-right direction is provided above the horizontal partition 18.

横仕切部１８は、下側断熱仕切壁１７ｂの前面及び左右側壁前面と共に、下部冷凍室扉５ａの貯蔵室側の面に設けたパッキン（図示せず）と接触する。製氷室扉３ａと上部冷凍室扉４ａの貯蔵室側の面に設けたパッキン（図示せず）は、横仕切部１８、縦仕切部５３（図４）、上側断熱仕切壁１７ａ及び冷蔵庫本体１０の左右側壁前面と接することで、各貯蔵室と各扉との間での冷気の移動をそれぞれ抑制している。なお、製氷室３、上部冷凍室４及び下部冷凍室５は、同じ冷凍温度帯で保たれているので、横仕切部１８及び縦仕切部５３の断熱性能は、上側断熱仕切壁１７ａや下側断熱仕切壁１７ｂほどは要求されない。   The horizontal partition 18 is in contact with packing (not shown) provided on the storage room side surface of the lower freezer compartment door 5a together with the front surface of the lower heat insulating partition wall 17b and the front surfaces of the left and right side walls. Packings (not shown) provided on the storage room side surfaces of the ice making room door 3a and the upper freezing room door 4a are the horizontal partition 18, the vertical partition 53 (FIG. 4), the upper heat insulating partition wall 17a and the refrigerator body 10. By contacting the front surfaces of the left and right side walls, the movement of cold air between each storage chamber and each door is suppressed. In addition, since the ice making chamber 3, the upper freezer compartment 4, and the lower freezer compartment 5 are maintained in the same freezing temperature zone, the heat insulating performance of the horizontal partition 18 and the vertical partition 53 is the upper heat insulating partition wall 17a and the lower side. It is not required as much as the heat insulating partition wall 17b.

図２に示すように、上部冷凍室４、下部冷凍室５及び野菜室６は、それぞれの貯蔵室の前方に備えられた扉４ａ、５ａ、６ａが取り付けられている。また、上部冷凍室４には上部冷凍貯蔵容器４１が配置され、下部冷凍室５には複数段の冷凍貯蔵容器、すなわち最上段冷凍貯蔵容器６３、上段冷凍貯蔵容器６１及び下段冷凍貯蔵容器６２が配置されている。更に、野菜室６には上段野菜貯蔵容器７１、下段野菜貯蔵容器７２が配置されている。   As shown in FIG. 2, the upper freezer compartment 4, the lower freezer compartment 5, and the vegetable compartment 6 are attached with doors 4a, 5a, 6a provided in front of the respective storage compartments. The upper freezer compartment 4 is provided with an upper freezer storage container 41, and the lower freezer compartment 5 has a plurality of stages of freezer storage containers, that is, an uppermost freezer storage container 63, an upper freezer storage container 61, and a lower freezer storage container 62. Has been placed. Furthermore, an upper vegetable storage container 71 and a lower vegetable storage container 72 are arranged in the vegetable room 6.

そして、製氷室扉３ａ、上部冷凍室扉４ａ、下部冷凍室扉５ａ及び野菜室扉６ａは、それぞれ図示しない取手部に手を掛けて手前側に引き出すことにより、製氷貯蔵容器３ｂ（図示せず）、上部冷凍貯蔵容器４１、下段冷凍貯蔵容器６２、上段野菜貯蔵容器７１、下段野菜貯蔵容器７２が引き出せるようになっている。   Then, the ice making room door 3a, the upper freezing room door 4a, the lower freezing room door 5a, and the vegetable room door 6a are each put on a handle portion (not shown) and pulled out to the front side, thereby making an ice making storage container 3b (not shown). ), An upper frozen storage container 41, a lower frozen storage container 62, an upper vegetable storage container 71, and a lower vegetable storage container 72 can be pulled out.

詳しくは、下段冷凍貯蔵容器６２は冷凍室扉内箱に取り付けられた支持アーム５ｄに下段冷凍貯蔵容器６２の側面上部のフランジ部が懸架されており、上段冷凍貯蔵容器６１は下段冷凍貯蔵容器６２の側面上部フランジ部の上に載置されており、冷凍室扉５aを引き出すと同時に下段冷凍貯蔵容器６２及び上段冷凍貯蔵容器６１が引き出される。最上段冷凍貯蔵容器６３は、下部冷凍室５の側面壁に形成された凹凸部（図示しない）に載置されており前後方向にスライド可能になっている。   More specifically, the lower refrigerated storage container 62 has a flange portion at the upper side of the lower refrigerated storage container 62 suspended from a support arm 5d attached to the inner box of the freezer compartment, and the upper refrigerated storage container 61 is a lower refrigerated storage container 62. The lower-stage refrigerated storage container 62 and the upper-stage refrigerated storage container 61 are pulled out at the same time as the freezer compartment door 5a is pulled out. The uppermost frozen storage container 63 is placed on an uneven portion (not shown) formed on the side wall of the lower freezer compartment 5 and is slidable in the front-rear direction.

下段野菜貯蔵容器７２も同様にフランジ部が野菜室扉６ａの内箱に取り付けられた支持アーム６ｄに懸架され、上段野菜貯蔵容器７１は下段野菜貯蔵容器７２のフランジ部の上に載置されている。また、この野菜室６には断熱箱体１５に固定された電熱ヒーター６Ｃが設けられており、この電熱ヒーター６Ｃによって野菜室６の温度が冷やし過ぎにならないように、野菜の貯蔵に適した温度になるようにしている。尚、この電熱ヒーター６Ｃは必要に応じて設けられれば良いものであるが、本実施例では野菜の貯蔵がより上手く行えるように電熱ヒーター６Ｃを設けるようにしている。   Similarly, the lower vegetable storage container 72 is suspended by a support arm 6d attached to the inner box of the vegetable compartment door 6a, and the upper vegetable storage container 71 is placed on the flange portion of the lower vegetable storage container 72. Yes. In addition, the vegetable room 6 is provided with an electric heater 6C fixed to the heat insulating box 15, and a temperature suitable for storing vegetables so that the temperature of the vegetable room 6 is not overcooled by the electric heater 6C. It is trying to become. The electric heater 6C may be provided if necessary, but in the present embodiment, the electric heater 6C is provided so that vegetables can be stored better.

次に冷蔵庫の冷却方法について説明する。冷蔵庫本体１０には冷却器収納室１３が形成され、この中に冷却手段として冷却器１９を備えている。冷却器１９（一例として、フィンチューブ熱交換器）は、下部冷凍室５の背部に備えられた冷却器収納室１３内に設けられている。また、冷却器収納室１３内であって冷却器１９の上方には送風手段として送風ファン２０（一例として、プロペラファン）が設けられている。   Next, a method for cooling the refrigerator will be described. A refrigerator housing chamber 13 is formed in the refrigerator body 10, and a cooler 19 is provided therein as a cooling means. The cooler 19 (for example, a fin tube heat exchanger) is provided in a cooler storage chamber 13 provided at the back of the lower freezer compartment 5. A blower fan 20 (a propeller fan as an example) is provided as a blower in the cooler storage chamber 13 and above the cooler 19.

冷却器１９で熱交換して冷やされた空気（以下、冷却器１９で熱交換した低温の空気を「冷気」と称する）は、送風ファン２０によって冷蔵室送風ダクト２１、冷凍室送風ダクト２２、及び図示しない製氷室送風ダクトを介して、冷蔵室２、製氷室３、上部冷凍室４、下部冷凍室５、野菜室６の各貯蔵室へそれぞれ送られる。   Air cooled by heat exchange in the cooler 19 (hereinafter, low-temperature air heat-exchanged by the cooler 19 is referred to as “cold air”) is supplied by a blower fan 20 to a refrigerator compartment air duct 21, a freezer compartment air duct 22, And it sends to each storage room of the refrigerating room 2, the ice making room 3, the upper freezing room 4, the lower freezing room 5, and the vegetable room 6 via the ice making room air duct which is not illustrated.

各貯蔵室への送風は、冷蔵温度帯の冷蔵室２への送風量を制御する第一の送風制御手段（以下、冷蔵室ダンパ２３という）と、冷凍温度帯の冷凍室４、５への送風量を制御する第二の送風量制御手段（以下、冷凍室ダンパ２４という）とにより制御される。ちなみに、冷蔵室２、製氷室３、上部冷凍室４、下部冷凍室５、及び野菜室６への各送風ダクトは、図３に破線で示すように冷蔵庫本体１０の各貯蔵室の背面側に設けられている。具体的には、冷蔵室ダンパ２３が開状態、冷凍室ダンパ２４が閉状態のときには、冷気は、冷蔵室送風ダクト２１を経て多段に設けられた吹き出し口２５から冷蔵室２に送られる。   The blast to each storage room is sent to the first blast control means (hereinafter referred to as the refrigeration room damper 23) for controlling the amount of air sent to the refrigeration room 2 in the refrigeration temperature zone, and to the freezer compartments 4 and 5 in the refrigeration temperature zone. It is controlled by second air flow control means (hereinafter referred to as freezer compartment damper 24) that controls the air flow. Incidentally, the air ducts to the refrigerator compartment 2, the ice making compartment 3, the upper freezer compartment 4, the lower freezer compartment 5, and the vegetable compartment 6 are provided on the back side of each storage compartment of the refrigerator main body 10 as shown by broken lines in FIG. Is provided. Specifically, when the refrigerator compartment damper 23 is in the open state and the freezer compartment damper 24 is in the closed state, the cold air is sent to the refrigerator compartment 2 from the outlets 25 provided in multiple stages via the refrigerator compartment air duct 21.

また、冷蔵室２を冷却した冷気は、冷蔵室２の下部に設けられた冷蔵室戻り口２６から冷蔵室−野菜室連通ダクト２７を経て、下側断熱仕切壁１７ｂの下部右奥側に設けた野菜室吹き出し口２８から野菜室６へ送風される。野菜室６からの戻り冷気は、下側断熱仕切壁１７ｂの下部前方に設けられた野菜室戻りダクト入口２９から野菜室戻りダクト３０を経て、野菜室戻りダクト出口から冷却器収納室１３の下部に戻る。尚、別の構成として冷蔵室−野菜室連通ダクト２７を野菜室６へ連通せずに、図３において冷却器収納室１３の上面から見て、右側下部に戻す構成としてもよい。この場合の一例として、冷蔵室−野菜室連通ダクト２７の前方投影位置に野菜室送風ダクトを配置して、冷却器１９で熱交換した冷気を、野菜室吹き出し口２８から野菜室６へ直接送風するようになる。   Moreover, the cold air which cooled the refrigerator compartment 2 is provided in the lower right back side of the lower heat insulation partition wall 17b from the refrigerator compartment return port 26 provided in the lower part of the refrigerator compartment 2 through the refrigerator compartment-vegetable compartment communication duct 27. The air is blown from the vegetable room outlet 28 to the vegetable room 6. The return cold air from the vegetable compartment 6 passes through the vegetable compartment return duct 30 from the vegetable compartment return duct inlet 29 provided in front of the lower part of the lower heat insulating partition wall 17b, and from the vegetable compartment return duct outlet to the lower part of the cooler storage compartment 13. Return to. In addition, it is good also as a structure which returns to the lower right side seeing from the upper surface of the cooler storage chamber 13 in FIG. As an example in this case, a vegetable room air duct is arranged at the front projection position of the refrigerator compartment-vegetable room communication duct 27, and the cold air heat-exchanged by the cooler 19 is directly blown from the vegetable room outlet 28 to the vegetable room 6. Will come to do.

図２、図３に示すように、冷却器収納室１３の前方には、各貯蔵室と冷却器収納室１３との間を仕切る仕切部材３１が設けられている。仕切部材３１には、図３にあるように上下に一対の吹き出し口３２ａ、３２ｂ、３３ａ、３３ｂが形成されており、冷凍室ダンパ２４が開状態のとき、冷却器１９で熱交換された冷気が送風ファン２０により図示を省略した製氷室送風ダクトや上段冷凍室送風ダクト３４を経て吹き出し口３２ａ、３２ｂからそれぞれ製氷室３、上部冷凍室４へ送風される。また、下段冷凍室送風ダクト３５を経て吹き出し口、３３ａ、３３ｂから下部冷凍室５へ送風される。尚、下部冷凍室５には必要に応じて吹き出し口を増設しても良いものである。   As shown in FIGS. 2 and 3, a partition member 31 is provided in front of the cooler storage chamber 13 to partition each storage chamber from the cooler storage chamber 13. As shown in FIG. 3, the partition member 31 has a pair of upper and lower outlets 32 a, 32 b, 33 a, and 33 b formed therein. When the freezer damper 24 is in an open state, Are blown by the blower fan 20 to the ice making chamber 3 and the upper freezing chamber 4 from the blowout ports 32a and 32b through the ice making chamber blowing duct and the upper freezing chamber blowing duct 34 (not shown). Further, the air is blown from the outlets 33 a and 33 b to the lower freezer compartment 5 through the lower freezer compartment air duct 35. It should be noted that the lower freezer compartment 5 may be provided with additional outlets as necessary.

また、冷蔵庫本体１０の天井壁上面側にＣＰＵ、ＲＯＭやＲＡＭ等のメモリ、インターフェース回路等を搭載した制御装置が設けられており、外気温度センサ（図示せず）、冷却器温度センサ（図示せず）、冷蔵室温度センサ（図示せず）、野菜室温度センサ（図示せず）、後述する冷凍室温度センサ（第１の温度検知手段５０、第２の温度検知手段５２）、扉２ａ、２ｂ、３ａ、４ａ、５ａ、６ａの各扉の開閉状態をそれぞれ検知する扉センサ（図示せず）、冷蔵室２内壁に設けられた図示しない温度設定器等と接続し、ＲＯＭに予め搭載されたプログラムにより、圧縮機１２のＯＮ、ＯＦＦ等の制御、冷蔵室ダンパ２３及び冷凍室ダンパ２４を個別に駆動するそれぞれのアクチュエータの制御、送風ファン２０のＯＮ／ＯＦＦ制御や回転速度制御、扉開放状態を報知するアラームのＯＮ／ＯＦＦ等の制御を行うようになっている。   In addition, a control device including a CPU, a memory such as a ROM and a RAM, an interface circuit, and the like is provided on the upper surface of the ceiling wall of the refrigerator body 10, and an outside air temperature sensor (not shown) and a cooler temperature sensor (not shown). Cold room temperature sensor (not shown), vegetable room temperature sensor (not shown), freezing room temperature sensors (first temperature detection means 50, second temperature detection means 52), door 2a, 2b, 3a, 4a, 5a, 6a door sensors (not shown) for detecting the open / closed state of each door, connected to a temperature setter (not shown) provided on the inner wall of the refrigerator compartment 2, etc. Control of compressor 12 on and off, control of each actuator that individually drives refrigerator compartment damper 23 and freezer compartment damper 24, ON / OFF control and rotation of blower fan 20 Degree control, so as to control the ON / OFF or the like of the alarm that notifies the door open state.

図１に戻って、冷蔵室扉２ａには入力制御部４０が設けられており、この入力制御部４０は上述した制御装置に接続されている。したがって、入力制御部４０からの入力によって冷蔵庫１の各貯蔵室の温度を設定できるようになっている。例えば圧縮機１２の回転数、送風ファン２０の回転数、冷蔵室ダンパ２３及び冷凍室ダンパ２４の開閉や開閉量等を制御することで各貯蔵室の温度を制御するものである。   Returning to FIG. 1, the refrigerator compartment door 2a is provided with an input control unit 40, and this input control unit 40 is connected to the control device described above. Therefore, the temperature of each storage room of the refrigerator 1 can be set by an input from the input control unit 40. For example, the temperature of each storage chamber is controlled by controlling the rotational speed of the compressor 12, the rotational speed of the blower fan 20, the opening / closing amount of the refrigerator compartment damper 23 and the freezer compartment damper 24, and the like.

以上のような構成の冷蔵庫において、食品の収納の有無を正確に検出できる適切な位置に温度検知手段を配置して食品の収納状態を検出することが要請されている。次に本発明の実施形態について図４乃至図１２を用いて説明する。   In the refrigerator configured as described above, it is required to detect the storage state of the food by arranging the temperature detection means at an appropriate position where the presence or absence of the storage of the food can be accurately detected. Next, an embodiment of the present invention will be described with reference to FIGS.

図４は冷凍室の要部拡大断面図を示している。図４において、製氷室３（左上部冷凍室）と上部冷凍室４（右上部冷凍室）を仕切る縦仕切部（真空断熱材を備えていない仕切構成材である）５３の奥行側端面にはサーミスタを用いた第１の温度検知手段５０が取り付けられている。また、下部冷凍室５の上側付近の背面壁５１には、これもサーミスタを用いた第２の温度検知手段５２が配置されている。   FIG. 4 shows an enlarged cross-sectional view of the main part of the freezer compartment. In FIG. 4, the depth side end face of the vertical partition 53 (which is a partition component that does not include a vacuum heat insulating material) 53 that partitions the ice making chamber 3 (upper left freezer) and the upper freezer 4 (upper right freezer). First temperature detection means 50 using a thermistor is attached. A second temperature detecting means 52 using a thermistor is also disposed on the back wall 51 near the upper side of the lower freezer compartment 5.

本実施例では、第１の温度検知手段５０は冷凍室内の食品温度に左右される空間の温度を測定し、第２の温度検知手段５２は食品温度に左右されない空間の温度を測定するものである。したがって、この２個の温度検知手段の出力信号の変動状態から、上部冷凍室４や下部冷凍室５に冷凍室温度より高い温度の食品が収納されたかどうかを判断するものである。第１の温度検知手段５０にサーミスタを採用することで、視野範囲内しか検知できない赤外線センサを採用した場合に比べ広範囲の食品温度を検知することができ、冷凍室への食品の収納をより素早く、正確に検出することができる。なお、第２の温度検知手段５２は、既に従来から設けられている温度検知手段であるので、詳細な構成についての説明は省略する。   In the present embodiment, the first temperature detection means 50 measures the temperature of the space that depends on the food temperature in the freezer compartment, and the second temperature detection means 52 measures the temperature of the space that is not affected by the food temperature. is there. Therefore, it is determined from the fluctuation state of the output signals of the two temperature detecting means whether food having a temperature higher than the freezer temperature is stored in the upper freezer compartment 4 or the lower freezer compartment 5. By adopting a thermistor for the first temperature detection means 50, it is possible to detect a wide range of food temperatures compared to the case where an infrared sensor that can detect only within the visual field range is adopted, and food can be stored in the freezer compartment more quickly. Can be detected accurately. Note that the second temperature detection means 52 is a temperature detection means that has already been conventionally provided, and thus a detailed description of the configuration is omitted.

さて、本実施例の特徴となっている第１の温度検知手段５０は、図４に示している通り、横仕切部１８に直交するように設けた縦仕切部５３の奥行方向下部、すなわち、冷気を吹き出す吹き出し口３２ａ、３３ａの近傍に設けられている。これらの構成の詳細を図５を用いて説明する。   Now, as shown in FIG. 4, the first temperature detection means 50, which is a feature of the present embodiment, is a lower part in the depth direction of the vertical partition 53 provided so as to be orthogonal to the horizontal partition 18, that is, It is provided in the vicinity of the air outlets 32a and 33a for blowing out cool air. Details of these configurations will be described with reference to FIG.

図５は、冷蔵庫１に取り付けられた縦仕切部５３近傍の拡大図である。ここに示すように、縦仕切部５３は、垂直部材５３ａと底面部材５３ｂを一体化した組立体に第１の温度検知手段５０を内蔵したものであり、上側断熱仕切壁１７ａに固定されるものである。   FIG. 5 is an enlarged view of the vicinity of the vertical partition 53 attached to the refrigerator 1. As shown here, the vertical partition 53 has a structure in which the first temperature detecting means 50 is built in an assembly in which the vertical member 53a and the bottom member 53b are integrated, and is fixed to the upper heat insulating partition wall 17a. It is.

第１の温度検知手段５０は、サーミスタ５０ａ、コネクタ５０ｃ、および、両者を繋ぐ信号線５０ｂからなり、信号線５０ｂは、縦仕切部５３の内部を通って外部まで伸びている。また、第１の温度検知手段５０のコネクタ５０ｃは、制御装置コネクタ５０ｄを介して制御装置に接続されるため、制御装置はサーミスタ５０ａからの信号に基づき、圧縮機１２、送風ファン２０、冷凍室ダンパ２４などを制御することができる。   The first temperature detection means 50 includes a thermistor 50 a, a connector 50 c, and a signal line 50 b that connects both, and the signal line 50 b extends through the inside of the vertical partition 53 to the outside. Further, since the connector 50c of the first temperature detecting means 50 is connected to the control device via the control device connector 50d, the control device is based on the signal from the thermistor 50a, and the compressor 12, the blower fan 20, the freezer compartment. The damper 24 and the like can be controlled.

図６は、上側断熱仕切壁１７ａから分離した状態の縦仕切部５３を示す斜視図である。ここに示すように、垂直部材５３ａの上面には、断面Ｌ字状の取付部５３ａ１を対向配置した対を複数設けている。各々の取付部５３ａ１は、奥側に壁が設けられている一方、手前側は開放されている。上側断熱仕切壁１７ａには、取付部５３ａ１の対と符合する位置に断面Ｔ字状のガイド部１７ａ１を設けている。このような構成により、コネクタ５０ｃと制御装置コネクタ５０ｄを接続した後、取付部５３ａ１の対の間に断面Ｔ字状のガイド部１７ａ１を嵌め、ガイド部１７ａ１が取付部５３ａ１の奥壁に接触するまで縦仕切部５３を手前方向にスライドさせることで、縦仕切部５３を所定位置に取り付けることができる。   FIG. 6 is a perspective view showing the vertical partition 53 in a state separated from the upper heat insulating partition wall 17a. As shown here, on the upper surface of the vertical member 53a, a plurality of pairs in which L-shaped attachment portions 53a1 are arranged to face each other are provided. Each mounting portion 53a1 is provided with a wall on the back side, while the front side is open. The upper heat insulating partition wall 17a is provided with a guide portion 17a1 having a T-shaped cross section at a position coinciding with the pair of attachment portions 53a1. With such a configuration, after connecting the connector 50c and the control device connector 50d, the guide portion 17a1 having a T-shaped cross section is fitted between the pair of the attachment portions 53a1, and the guide portion 17a1 contacts the back wall of the attachment portion 53a1. The vertical partition 53 can be attached to a predetermined position by sliding the vertical partition 53 in the forward direction.

また、垂直部材５３ａの手前側には、断面略円弧状の切欠部５３ａ２が形成されている。これにより、縦仕切部５３をスライドさせて所定位置に取り付けても、信号線５０ｂは切欠部５３ａ２に収納されるので、信号線５０ｂが縦仕切部５３に押しつぶされるのを防ぐことができる。   Further, a notch 53a2 having a substantially arc-shaped cross section is formed on the front side of the vertical member 53a. Thereby, even if the vertical partition 53 is slid and attached at a predetermined position, the signal line 50 b is accommodated in the notch 53 a 2, so that the signal line 50 b can be prevented from being crushed by the vertical partition 53.

さらに、図５および図６のように、垂直部材５３ａの手前側には、信号線５０ｂだけでなくコネクタ５０ｃも収納する収納部が形成されている。このため、コネクタ５０ｃの箇所を縦仕切部５３の正面側から容易にメンテナンスできる。   Further, as shown in FIGS. 5 and 6, a housing portion that houses not only the signal line 50 b but also the connector 50 c is formed on the front side of the vertical member 53 a. For this reason, the location of the connector 50c can be easily maintained from the front side of the vertical partition 53.

次に、図７を用いて、第１の温度検知手段５０を取り付けた底面部材５３ｂの詳細を説明する。図７（ａ）（ｂ）（ｃ）はそれぞれ、底面部材５３ｂの上面図、側面図、下面図であり、７０１はねじボス、７０２は水抜き穴、７０２ａはリブ、７０３は格子である。   Next, details of the bottom surface member 53b to which the first temperature detecting means 50 is attached will be described with reference to FIG. FIGS. 7A, 7B, and 7C are a top view, a side view, and a bottom view, respectively, of the bottom surface member 53b, wherein 701 is a screw boss, 702 is a drain hole, 702a is a rib, and 703 is a lattice.

図７（ａ）に示すように、サーミスタ５０ａは底面部材５３ｂ（ケース）の上面奥側に設置されている。サーミスタ５０ａとコネクタ５０ｃを繋ぐ信号線５０ｂは、ねじボス７０１に巻き付けられており、製造時などに信号線５０ｂが引っ張られることがあっても、その力はねじボス７０１で負担されるため、サーミスタ５０ａと信号線５０ｂの接続部での断線などの不良の発生を防止できる。また、底面部材５３ｂには上下に貫通する水抜き穴７０２が設けられており、縦仕切部５３内の水蒸気や垂直部材５３ａから落下した水を下方に逃がすことで、縦仕切部５３内に氷や水が溜まるのを防止する。   As shown in FIG. 7A, the thermistor 50a is installed on the back side of the upper surface of the bottom surface member 53b (case). The signal line 50b connecting the thermistor 50a and the connector 50c is wound around the screw boss 701, and even if the signal line 50b is pulled during manufacturing or the like, the force is borne by the screw boss 701. It is possible to prevent the occurrence of defects such as disconnection at the connecting portion between 50a and the signal line 50b. Further, the bottom member 53b is provided with a drain hole 702 penetrating vertically, so that water in the vertical partition 53 and water dropped from the vertical member 53a are allowed to escape downward so that ice in the vertical partition 53 can be obtained. And prevent water from accumulating.

ここで、信号線５０ｂは、複数のねじボス７０１に巻き付けることにより、断線などの不良が更に確実に防止できる。なお、信号線５０ｂを巻き付ける対象は、ねじボス７０１に限らず、縦仕切部５３内の他の突出部であっても良い。また、複数の突出部に信号線５０ｂを巻き付ける代わりに、１つの突出部に信号線５０ｂを複数回巻き付けても構わない。   Here, by winding the signal line 50b around the plurality of screw bosses 701, defects such as disconnection can be more reliably prevented. The target to which the signal line 50 b is wound is not limited to the screw boss 701, but may be another protrusion in the vertical partition 53. Further, instead of winding the signal line 50b around the plurality of protruding portions, the signal line 50b may be wound around the one protruding portion a plurality of times.

また、図７（ｂ）（ｃ）に示すように、底面部材５３ｂの上面に設けたねじボス７０１は、上方に大きく突出しており、内部に挿入したねじで垂直部材５３ａと底面部材５３ｂを一体化して組立体を構成する。また、底面部材５３ｂの下面には水抜き穴７０２を囲みつつ下方へ突出するリブ７０２ａが設けられている。   Further, as shown in FIGS. 7B and 7C, the screw boss 701 provided on the upper surface of the bottom surface member 53b protrudes greatly upward, and the vertical member 53a and the bottom surface member 53b are integrated with the screw inserted inside. To construct an assembly. A rib 702a is provided on the lower surface of the bottom member 53b so as to protrude downward while surrounding the drain hole 702.

ここで、電気用品安全法は、安全性を高めるため、信号線５０ｂなどの充電部と冷蔵庫１の使用者が触れうる部分との間に所定の絶縁距離を設けることを求めている。本実施例の縦仕切部５３では、水抜き穴７０２の周囲に所定の高さのリブ７０２ａを設けることで、信号線５０ｂとリブ７０２ａの下端を離した構成としており、充電部である信号線５０ｂと使用者が触れうるリブ７０２ａ下端の沿面距離を、電気用品安全法が定める絶縁距離以上に大きくした。なお、底面部材５３ｂの厚さとリブ７０２ａの厚さとの合計は、１ｍｍ以上としている。   Here, the Electrical Appliance and Material Safety Law requires that a predetermined insulation distance be provided between a charging unit such as the signal line 50b and a portion that can be touched by the user of the refrigerator 1 in order to improve safety. In the vertical partition 53 of the present embodiment, the signal line 50b and the lower end of the rib 702a are separated from each other by providing a rib 702a having a predetermined height around the drain hole 702, and the signal line which is a charging unit The creepage distance at the lower end of the rib 702a that can be touched by the user 50b is made larger than the insulation distance defined by the Electrical Appliance and Material Safety Law. The total of the thickness of the bottom member 53b and the thickness of the rib 702a is 1 mm or more.

さらに、図７（ａ）（ｂ）（ｃ）に示すように、底面部材５３ｂのうち、少なくともサーミスタ５０ａの鉛直投影下には、格子７０３が形成されており、また、図８（ｂ）に示すように、格子７０３は、底面部材５３ｂの下面よりも凹んだ位置に設けられているため、格子７０３の上面に設けたサーミスタ５０ａは、底面部材５３ｂの下面より大きく上方に凹んだ位置に設けられていることになる。   Further, as shown in FIGS. 7A, 7B, and 7C, a lattice 703 is formed at least under the vertical projection of the thermistor 50a in the bottom surface member 53b, and in FIG. 8B. As shown, the grid 703 is provided at a position recessed from the bottom surface of the bottom surface member 53b, and therefore the thermistor 50a provided at the top surface of the grid 703 is provided at a position recessed above the bottom surface of the bottom surface member 53b. Will be.

一般的に、サーミスタには直接吹き付けられた冷気の影響を大きく受けるという特性があり、吹き出し口近傍にサーミスタを露出配置すると、冷気の影響により冷凍庫内を正確に測定できないという問題が発生する。これに対し、本実施例では、サーミスタ５０ａを、縦仕切部５３の内部であり、底面部材５３ｂの下面よりも上方の凹んだ領域に設けたているので、サーミスタ５０ａには冷気が直接吹き付けられることはなく、冷凍庫内の温度を正確に測定することができる。   Generally, the thermistor has a characteristic that it is greatly affected by the cold air blown directly. If the thermistor is exposed in the vicinity of the outlet, there is a problem that the inside of the freezer cannot be measured accurately due to the cold air. On the other hand, in the present embodiment, the thermistor 50a is provided in the recessed area above the lower surface of the bottom surface member 53b inside the vertical partition 53, so that cold air is directly blown onto the thermistor 50a. There is nothing, and the temperature in the freezer can be measured accurately.

また、サーミスタ５０ａは、格子７０３を介して冷凍室の温度を測定している。サーミスタ５０ａが格子７０３を介して冷凍室の温度を測定する構成としたのは、リブ７２ａを設けた理由と同じく、電気用品安全法の要請に応え、サーミスタ５０ａと使用者が触れうる部分との間に十分な沿面距離を確保するためである。   Further, the thermistor 50 a measures the temperature of the freezer compartment via the grid 703. The thermistor 50a is configured to measure the temperature of the freezer compartment via the grid 703. The reason is that the thermistor 50a and the portion that can be touched by the user in response to the request of the Electrical Appliance and Material Safety Law, for the same reason as the rib 72a. This is to ensure a sufficient creepage distance between them.

次に、図４に戻り、縦仕切部５３近傍の構成をさらに説明する。下部冷凍室５には、下方から下段冷凍貯蔵容器６２、上段冷凍貯蔵容器６１、最上段冷凍貯蔵容器６３が配置されている。このような構成において、下部冷凍室５の最上段冷凍貯蔵容器６３に生肉や調理済みの食品が収納されたとする。   Next, returning to FIG. 4, the configuration near the vertical partition 53 will be further described. In the lower freezer compartment 5, a lower frozen storage container 62, an upper frozen storage container 61, and an uppermost frozen storage container 63 are arranged from below. In such a configuration, it is assumed that raw meat or cooked food is stored in the uppermost frozen storage container 63 of the lower freezer compartment 5.

この時、第１の温度検知手段５０は、下部冷凍室５の最上段冷凍貯蔵容器６３の鉛直投影内であって、最上段冷凍貯蔵容器６３の上端部より高く、上側断熱仕切壁１７ａの下端部や上部冷凍室４の上部冷凍貯蔵容器４１の上端部よりも低い位置にある。このように、第１の温度検知手段５０は、最上段冷凍貯蔵容器６３の上方に近接して配置されているので、最上段冷凍貯蔵容器６３に収納された食品の温度の影響を受け易くなっている。つまり、第１の温度検知手段５０は最上段冷凍貯蔵容器６３に収納された食品温度に左右される空間の温度を測定しているものである。   At this time, the first temperature detection means 50 is within the vertical projection of the uppermost frozen storage container 63 of the lower freezer compartment 5 and is higher than the upper end portion of the uppermost frozen storage container 63 and the lower end of the upper heat insulating partition wall 17a. Or the upper freezing container 41 of the upper freezer compartment 4 is located at a position lower than the upper end portion. Thus, since the first temperature detection means 50 is disposed close to the uppermost frozen storage container 63, the first temperature detection means 50 is easily affected by the temperature of the food stored in the uppermost frozen storage container 63. ing. In other words, the first temperature detecting means 50 measures the temperature of the space that depends on the food temperature stored in the uppermost frozen storage container 63.

一方、第２の温度検知手段５２は、下部冷凍室５の最上段冷凍貯蔵容器６３の鉛直投影外、具体的には下部冷凍室５の背面側にあって、最上段冷凍貯蔵容器６３から離れて配置されているので、最上段冷凍貯蔵容器６３に収納された食品温度に限らず、扉開閉による外気の流入や上段冷凍貯蔵容器６３以外に収納された食品温度の影響を同様に受ける。つまり、第２の温度検知手段５２は最上段冷凍貯蔵容器６３に収納された食品温度だけでなく、冷凍室全体の空間の温度を測定するものである。したがって、第１の温度検知手段５０の出力と第２の温度検知手段５２の時系列的な出力信号の変動状態を比較することで、最上段冷凍貯蔵容器６３に食品が収納されたかどうかが判断できるようになる。   On the other hand, the second temperature detection means 52 is outside the vertical projection of the uppermost frozen storage container 63 of the lower freezer compartment 5, specifically on the back side of the lower freezer compartment 5, and away from the uppermost frozen storage container 63. Therefore, the temperature is not limited to the temperature of the food stored in the uppermost frozen storage container 63, but is similarly affected by the inflow of outside air by opening and closing the door and the temperature of the food stored outside the upper frozen storage container 63. That is, the second temperature detecting means 52 measures not only the temperature of the food stored in the uppermost frozen storage container 63 but also the temperature of the entire freezer compartment. Therefore, by comparing the output state of the first temperature detection means 50 and the time series output signal of the second temperature detection means 52, it is determined whether or not the food is stored in the uppermost frozen storage container 63. become able to.

また、本実施例では、上側断熱仕切壁１７ａに第１の温度検知手段５０を設けないので、上側断熱仕切壁１７ａに真空断熱材を広く貼り付けられ、上側断熱仕切壁１７ａからの冷熱の漏洩を抑制することができる。すなわち、冷凍室と冷蔵室との間の熱の移動が抑制されるので、冷凍室を冷やすための電力消費を抑制でき、また冷蔵室の冷やし過ぎも抑制できる。   In the present embodiment, since the first temperature detecting means 50 is not provided on the upper heat insulating partition wall 17a, a vacuum heat insulating material is widely attached to the upper heat insulating partition wall 17a, and leakage of cold heat from the upper heat insulating partition wall 17a. Can be suppressed. That is, since the movement of heat between the freezer compartment and the refrigerator compartment is suppressed, power consumption for cooling the freezer compartment can be suppressed, and excessive cooling of the refrigerator compartment can also be suppressed.

また、本実施例においては、縦仕切部５３に、第１の温度検知手段５０を事前に組み込んでいるので、冷蔵庫への組み付けが容易となり、作業効率を向上することができる。   Further, in the present embodiment, since the first temperature detection means 50 is incorporated in the vertical partition 53 in advance, the assembly to the refrigerator is facilitated, and the working efficiency can be improved.

次に、食品の収納の有無を判別する判別方法について説明する。図９は判別を実行した時の各温度検知手段の挙動と圧縮機の動作状態を示し、図１０はその制御フローを示している。   Next, a determination method for determining whether or not food is stored will be described. FIG. 9 shows the behavior of each temperature detection means and the operating state of the compressor when the discrimination is executed, and FIG. 10 shows the control flow.

図９において、或る時刻で対象となる下部冷凍室５の扉が時刻ｔ０で開かれて、生肉等の食品が最上段貯蔵容器６３に収納され、時刻ｔ１で閉じられたとする。この状態で圧縮機は、通常冷却モードとして低回転で運転され、同様に送風ファンも低回転で運転されている。   In FIG. 9, it is assumed that the door of the target lower freezer compartment 5 is opened at time t0, food such as raw meat is stored in the uppermost storage container 63, and is closed at time t1. In this state, the compressor is operated at a low rotation as a normal cooling mode, and the blower fan is also operated at a low rotation.

食品が収納された場合は、この食品付近の冷気の温度は、食品の温度の影響を受けて低下し難いので、第１の温度検知手段５０の検出温度は上昇し、扉を閉じた後も高温状態がしばらく継続する。   When food is stored, the temperature of the cold air around the food is unlikely to decrease due to the temperature of the food, so that the temperature detected by the first temperature detecting means 50 rises and even after the door is closed. High temperature continues for a while.

一方で、扉の開閉はあっても食品が投入されていない時は、第１の温度検知手段５０の検出温度の温度上昇は一時的であり、扉を閉じた後には温度が低下しやすい。したがって、第１の温度検知手段５０の検知温度が、食品検知閾値以上の状態を一定時間Ｔ１以上継続した場合に、食品が収納されたと判断できる。   On the other hand, when the door is opened and closed, but no food is put in, the temperature rise of the temperature detected by the first temperature detecting means 50 is temporary, and the temperature is likely to drop after the door is closed. Therefore, when the temperature detected by the first temperature detecting means 50 continues for a certain time T1 or more in a state where the detected temperature is equal to or higher than the food detection threshold, it can be determined that the food is stored.

上述した第１の温度検知手段５０の検出温度による食品検知判定は、下部冷凍室扉５ａを開けた時刻ｔ０の第１の温度検知手段５０の検知温度が、食品検知閾値未満の場合にのみ実施する。また、上述した食品検知判定は、下部冷凍室扉５ａを閉じた時刻ｔ１より一定時間を検知監視基準時間Ｔ０として設け、検知監視基準時間Ｔ０内にのみ実施する。これは、上部冷凍室や冷蔵室など、下部冷凍室以外の貯蔵室に高温の食品が収納された場合にも、第１の温度センサ５０の検知温度が上昇する可能性があるためである。したがって、下部冷凍室扉５ａを開けたときには既に高温状態である場合や、下部冷凍室扉５ａの開閉と連動せずに第１の温度検知手段５０の検知温度が上昇した場合は、下部冷凍室５の最上段冷凍貯蔵容器６３へ食品が投入されていないとみなす。これにより、食品を実際に投入していない場合に、食品が投入されたと判定してしまう誤検知とその後の誤作動を防止できる。   The food detection determination based on the detection temperature of the first temperature detection means 50 described above is performed only when the detection temperature of the first temperature detection means 50 at the time t0 when the lower freezer compartment door 5a is opened is less than the food detection threshold. To do. In addition, the food detection determination described above is performed as a detection monitoring reference time T0 from a time t1 when the lower freezer compartment door 5a is closed, and is performed only within the detection monitoring reference time T0. This is because the temperature detected by the first temperature sensor 50 may rise even when high-temperature food is stored in a storage room other than the lower freezer room, such as an upper freezer room or a refrigerator room. Therefore, if the lower freezer compartment door 5a is already in a high temperature state when the lower freezer compartment door 5a is opened, or if the detected temperature of the first temperature detecting means 50 rises without interlocking with the opening and closing of the lower freezer compartment door 5a, the lower freezer compartment 5, it is assumed that no food is put in the uppermost frozen storage container 63. As a result, it is possible to prevent erroneous detection and subsequent malfunction that determine that food has been input when food is not actually input.

次に、冷却運転の制御について説明する。   Next, control of the cooling operation will be described.

まず、上述した食品検知判定で、食品が投入されていないと判定された場合には、通常冷却モードでの運転を行う。この通常冷却モードでは、第２の温度検知手段５２の検知温度が圧縮機オン閾値（第１の閾値）に達すれば、圧縮機の運転を開始して冷凍室内を冷却する。冷凍室内が十分に冷却されて第２の温度検知手段の検知温度が圧縮機オフ閾値（第２の閾値）に達すれば、圧縮機の運転を停止して冷凍室内の冷却を一時中断する。ここで、省エネ性や騒音面を配慮すれば、圧縮機の回転数はできるだけ低回転で運転するのが望ましい。このため、圧縮機が運転を開始した段階では低回転（第１の回転数）で運転し、扉開閉があった場合や第２の温度検知手段５２の検知温度が高温になった場合には、必要に応じて回転数を高回転（第１の回転数より高い第２の回転数）に上げて、冷凍室内の冷却を加速させる。この動作を繰り返すことにより、冷凍室内の温度を所定の範囲内に保つように調節する。   First, when it is determined by the above-described food detection determination that no food has been added, the operation in the normal cooling mode is performed. In this normal cooling mode, when the temperature detected by the second temperature detecting means 52 reaches the compressor on threshold (first threshold), the compressor is started to cool the freezer compartment. When the inside of the freezer compartment is sufficiently cooled and the temperature detected by the second temperature detecting means reaches the compressor off threshold (second threshold), the operation of the compressor is stopped and the inside of the freezer compartment is temporarily suspended. Here, in consideration of energy saving and noise, it is desirable to operate the compressor at the lowest possible speed. For this reason, when the compressor starts operation, the compressor is operated at a low rotation speed (first rotation speed), and when the door is opened or closed or when the temperature detected by the second temperature detecting means 52 becomes high. If necessary, the rotational speed is increased to a high rotational speed (second rotational speed higher than the first rotational speed) to accelerate cooling in the freezer compartment. By repeating this operation, the temperature in the freezer compartment is adjusted to be kept within a predetermined range.

一方、上述した食品検知判定で、食品が投入されたと判定された場合には、急速冷却運転に移行する。この急速冷却運転では、第２の温度検知手段５２の検知温度が圧縮機オフ閾値に達するまでは通常冷却モードと同じ運転を行うが、圧縮機オフ閾値に達すると、圧縮機の運転を停止させずに回転数を高回転から低回転に下げて運転を継続する。ここで、圧縮機を高回転で長時間運転し続けると、冷凍室の温度が大幅に低下し、隣接する冷蔵室や野菜室での結露や霜付き、食品凍結といった不具合が生じる可能性もある。しかし、圧縮機を低回転とすることで運転時間を長くし、中断することなく冷気を供給し続けることで、上述の不具合の発生を抑制しつつ食品をすばやく凍結させることが可能である。例えばサイズの大きな食品や高温の食品のような凍結に時間を要する食品に対しても、高回転での場合よりも長時間冷気の供給を継続できるため、凍結までの時間を短くできる。なお、圧縮機オフ閾値に達した後の低回転の圧縮機運転は、第１の温度検知手段５０の検知温度が運転終了閾値に達するまで継続する。   On the other hand, if it is determined in the food detection determination described above that food has been input, the process proceeds to a rapid cooling operation. In this rapid cooling operation, the same operation as in the normal cooling mode is performed until the temperature detected by the second temperature detecting means 52 reaches the compressor off threshold, but when the compressor off threshold is reached, the operation of the compressor is stopped. Without lowering the rotation speed from high to low, continue operation. Here, if the compressor is operated at a high rotation for a long time, the temperature of the freezer compartment is greatly reduced, and there is a possibility that problems such as condensation, frost formation and food freezing in the adjacent refrigerator compartment or vegetable compartment may occur. . However, it is possible to freeze the food quickly while suppressing the occurrence of the above-mentioned problems by extending the operation time by reducing the rotation of the compressor and continuing to supply cold air without interruption. For example, even for foods that require time for freezing, such as large-size foods and high-temperature foods, the supply of cold air can be continued for a longer time than in the case of high rotation, so the time until freezing can be shortened. Note that the low-rotation compressor operation after reaching the compressor-off threshold continues until the temperature detected by the first temperature detection means 50 reaches the operation end threshold.

ただし、図１１のように、食品が投入されたと判定したときに、圧縮機が停止状態の場合もある。このときは、通常冷却モードでの制御に従って、圧縮機オン閾値に達した後に圧縮機の運転を開始し、圧縮機オフ閾値に達した後に、上述のように、第１の温度検知手段５０の検知温度が運転終了閾値に達するまで低回転の圧縮機運転を継続する。この場合、食品投入後の早い段階で圧縮機が停止し、冷気の供給が中断することになるが、この段階では食品がまだ氷結晶生成帯である−１℃から−５℃の範囲に達していないことが多いと考えられる。したがって、圧縮機が再度運転を開始した後に冷気を連続的に供給すれば、上述の氷結晶生成帯の温度帯をすばやく通過させることが可能となり、鮮度の維持に有効となる。   However, as shown in FIG. 11, when it is determined that food has been introduced, the compressor may be stopped. At this time, according to the control in the normal cooling mode, the operation of the compressor is started after reaching the compressor-on threshold value, and after reaching the compressor-off threshold value, as described above, the first temperature detecting means 50 The low-rotation compressor operation is continued until the detected temperature reaches the operation end threshold. In this case, the compressor stops at an early stage after the food is added, and the supply of cold air is interrupted. At this stage, the food still reaches the range of −1 ° C. to −5 ° C., which is the ice crystal formation zone. It is thought that there are not many. Therefore, if the cool air is continuously supplied after the compressor starts operation again, it is possible to quickly pass through the temperature range of the ice crystal generation zone, which is effective in maintaining freshness.

次に、上述したタイムチャートを実現する制御フローの考え方について図１２を用いて簡単に説明する。   Next, the concept of the control flow for realizing the above-described time chart will be briefly described with reference to FIG.

先ず、ステップＳ１０で通常冷却モードを実行しているが、ここで、使用者によって下部冷凍室５の扉が開けられたことをステップＳ１１で検出する。ステップＳ１１で下部冷凍室５の扉５が開けられると、ステップＳ１２で第１の温度検知手段５０の検知温度と食品検知閾値とを比較し、既に検知温度が食品検知閾値以上であれば、ステップＳ２４に進んで、食品は投入されていないと判定し、ステップＳ２５で通常冷却モードへ進む。   First, the normal cooling mode is executed in step S10. Here, it is detected in step S11 that the user has opened the lower freezer compartment 5 door. When the door 5 of the lower freezer compartment 5 is opened in step S11, the detected temperature of the first temperature detecting means 50 and the food detection threshold are compared in step S12. If the detected temperature is already equal to or higher than the food detection threshold, step Proceeding to S24, it is determined that no food has been added, and the process proceeds to the normal cooling mode in step S25.

ステップＳ１２で第１の温度検知手段５０の検知温度が食品検知閾値より低い場合は、使用者によって下部冷凍室５の扉が閉じられたことをステップＳ１３で検出すると、ステップＳ１４に進み、検知監視時間のタイマカウントをスタートさせる。次にステップＳ１５に進んで、第１の温度検知手段５０の検知温度と食品検知閾値とを比較する。検知温度が食品検知閾値以上の場合は、ステップＳ１６で食品検知時間のタイマカウントをスタートさせる。 次に、ステップＳ１７に進んで、高温状態が所定時間継続しているかどうかを、食品検知タイマと食品検知基準時間Ｔ１とを比較して判定する。食品検知タイマが食品検知基準時間Ｔ１未満であるときは、ステップＳ２３で検知監視タイマと検知監視基準時間Ｔ０とを比較し、検知監視タイマが検知監視基準時間Ｔ０に達していない場合は、ステップＳ１４に戻って同様に繰り返す。一方、ステップＳ１５で第１の温度検知手段５０の検知温度が食品検知閾値より低い場合は、ステップＳ２３へ進む。このステップＳ２３で、検知監視タイマと検知監視基準時間Ｔ０とを比較し、検知監視タイマが検知監視基準時間Ｔ０に達していない場合は、ステップＳ１４へ戻って同様に繰り返す。ステップＳ２３で検知監視タイマが検知監視基準時間Ｔ０に達した場合は、ステップＳ２４に進んで、食品は投入されていないと判定し、ステップＳ２５で通常冷却モードへ至る。   If the detected temperature of the first temperature detecting means 50 is lower than the food detection threshold value in step S12, if it is detected in step S13 that the user has closed the door of the lower freezer compartment 5, the process proceeds to step S14, and detection monitoring is performed. Start timer count of time. Next, it progresses to step S15 and the detection temperature of the 1st temperature detection means 50 and a food detection threshold value are compared. If the detected temperature is equal to or higher than the food detection threshold, the timer count of the food detection time is started in step S16. Next, the process proceeds to step S17, and it is determined by comparing the food detection timer and the food detection reference time T1 whether the high temperature state continues for a predetermined time. If the food detection timer is less than the food detection reference time T1, the detection monitoring timer and the detection monitoring reference time T0 are compared in step S23. If the detection monitoring timer has not reached the detection monitoring reference time T0, step S14 is performed. Return to and repeat in the same way. On the other hand, if the detected temperature of the first temperature detecting means 50 is lower than the food detection threshold value in step S15, the process proceeds to step S23. In step S23, the detection monitoring timer is compared with the detection monitoring reference time T0. If the detection monitoring timer has not reached the detection monitoring reference time T0, the process returns to step S14 and is repeated in the same manner. When the detection monitoring timer reaches the detection monitoring reference time T0 in step S23, the process proceeds to step S24, where it is determined that no food is put in, and the normal cooling mode is reached in step S25.

一方、Ｓ１７で食品検知タイマが食品検知基準時間Ｔ１に達した場合、ステップＳ１８で食品が投入されたと判定し、急速冷却運転へ移行する。まず、ステップＳ１９で通常冷却モードによる運転を続けた後、ステップＳ２０で第２の温度検知手段５２による検知温度が圧縮機オフ閾値に達したかどうかを判定する。検知温度が圧縮機オフ閾値より高い場合は、ステップＳ１９へ戻って同様に繰り返す。ステップＳ２０で圧縮機オフ閾値に達した場合、ステップＳ２１へ進んで圧縮機を低回転で連続運転させる。そして、ステップＳ２２で第１の温度検知手段５０の検知温度と運転終了閾値とを比較し、検知温度が運転終了閾値より高ければ、ステップＳ２１へ戻り、同様に繰り返す。ステップＳ２２で運転終了閾値に達した場合、ステップＳ２５に進んで通常冷却モードに進む。   On the other hand, when the food detection timer reaches the food detection reference time T1 in S17, it is determined in step S18 that the food has been input, and the process proceeds to the rapid cooling operation. First, after the operation in the normal cooling mode is continued in step S19, it is determined in step S20 whether or not the temperature detected by the second temperature detecting means 52 has reached the compressor off threshold. If the detected temperature is higher than the compressor off threshold, the process returns to step S19 and repeats in the same manner. When the compressor off threshold is reached in step S20, the process proceeds to step S21, and the compressor is continuously operated at a low speed. Then, in step S22, the detected temperature of the first temperature detecting means 50 is compared with the operation end threshold value. If the detected temperature is higher than the operation end threshold value, the process returns to step S21 and the same is repeated. When the operation end threshold value is reached in step S22, the process proceeds to step S25 to proceed to the normal cooling mode.

また、図１１のタイムチャートの場合では、ステップＳ１９の次に、圧縮機がオン状態かどうかを判定するステップＳ２６を設けている。このステップＳ２６で圧縮機がオフ状態の場合は、ステップＳ１９へ戻って同様に繰り返す。一方、ステップＳ２６で圧縮機がオン状態の場合は、ステップＳ２０へ進み、上述と同様のフローとなる。   In the case of the time chart of FIG. 11, step S26 for determining whether or not the compressor is on is provided after step S19. If the compressor is off in step S26, the process returns to step S19 and repeats in the same manner. On the other hand, if the compressor is in the on state in step S26, the process proceeds to step S20, and the flow is the same as described above.

このようにして、２個の温度センサを用い、最上段冷凍貯蔵容器６３に食品が有るか否かを判断して、急速冷却モードの実行を制御することができるようになる。すなわち、上部冷凍室と冷蔵室との間の断熱性能の低下を抑制しつつ、温度の高い食品や多量の食品が収納されたら自動的に急速冷凍できる冷蔵庫が提供できる。なお、最上段冷凍貯蔵容器６３以外の上部冷凍室４、下部冷凍室５の上段冷凍貯蔵容器６１ならびに下段冷凍貯蔵容器６２については、温度検知手段を用いずに、使用者が急速冷凍の要否を設定できるようにしている。また、上部冷凍室４は、冷凍温度帯だけでなく冷蔵温度帯にも切替できるような部屋であっても構わない。   In this way, it is possible to control whether or not the quick cooling mode is executed by determining whether or not there is food in the uppermost frozen storage container 63 using two temperature sensors. That is, it is possible to provide a refrigerator that can automatically freeze quickly when a food with a high temperature or a large amount of food is stored while suppressing a decrease in heat insulation performance between the upper freezer compartment and the refrigerator compartment. In addition, regarding the upper freezing storage container 61 and the lower freezing storage container 62 other than the uppermost freezing storage container 63, the upper freezing storage container 61, and the lower freezing storage container 62, it is necessary for a user to perform quick freezing without using a temperature detection means. Can be set. Further, the upper freezer compartment 4 may be a room that can be switched not only to the freezing temperature zone but also to the refrigeration temperature zone.

さらに、本実施例では、冷凍室に食品が投入されたと判定すると、まず高回転で圧縮機を運転し、そのまま圧縮機を停止させずに或いは圧縮機を一時的に停止させた後、高回転のときよりも長い時間、低回転で継続的に運転する。このため、第２の温度検知手段５２による検知温度が低下して冷凍室内が目標温度まで冷却された場合でも、冷え切っていない食品の冷却を継続することが可能である。その結果、圧縮機を停止させたり運転再開したりする頻度を少なくでき、圧縮機の寿命を長く維持できる。また、圧縮機を高回転で運転させる時間を短くできるので、従来の急速冷却運転の場合と比べて全体の消費電力量を抑制できるだけでなく、圧縮機の高回転に起因する騒音や振動の発生時間も短くできる。   Further, in this embodiment, when it is determined that the food has been put into the freezer compartment, the compressor is first operated at a high rotation, and the compressor is not stopped as it is or after the compressor is temporarily stopped, and then the high rotation is performed. Continue to run at low speed for a longer time than at. For this reason, even when the temperature detected by the second temperature detecting means 52 is lowered and the inside of the freezer compartment is cooled to the target temperature, it is possible to continue cooling the uncooled food. As a result, the frequency at which the compressor is stopped or restarted can be reduced, and the life of the compressor can be maintained longer. In addition, since the time for operating the compressor at a high speed can be shortened, not only can the overall power consumption be reduced compared to the conventional rapid cooling operation, but also the generation of noise and vibration due to the high speed of the compressor. Time can be shortened.

また、本実施例では、上部冷凍室４内の貯蔵容器や下部冷凍室５内の他の貯蔵容器と比べて、高さ寸法が最も小さく、薄い空間である最上段冷凍貯蔵容器６３を、急速冷凍の対象としているので、食品を置くときに積み重なり難く、収納や取り出しの操作がし易いという利点がある。さらに、この最上段冷凍貯蔵容器６３は、上部冷凍室４の貯蔵容器と比べて幅寸法が大きいので、より多くの食品を左右方向に並べて配置できる。   Further, in the present embodiment, the uppermost refrigerated storage container 63 having a smallest height dimension and a thin space compared to the storage container in the upper freezer compartment 4 and the other storage containers in the lower freezer compartment 5 is rapidly Since it is a target for freezing, there is an advantage that it is difficult to stack foods and is easy to store and take out. Further, since the uppermost frozen storage container 63 has a larger width than the storage container of the upper freezer compartment 4, more food can be arranged in the left-right direction.

ここで、最上段冷凍貯蔵容器６３の略全面には金属製の熱伝導板としてアルミトレイが敷設されており、このアルミトレイの上表面には凸部または凹部が奥行方向および左右方向に複数形成されている。アルミ自体が熱伝導性の高い材料であり、さらに複数の凹凸により表面積を増加させているので、上段冷凍貯蔵容器６１や下段冷凍貯蔵容器６２と比べて、最上段冷凍貯蔵容器６３の冷却性能は高くなっている。そして、最上段冷凍貯蔵容器６３の鉛直投影外、具体的には、下部冷凍室５の背面側の最上段冷凍貯蔵容器６３と略同じ高さにある吹出口から、冷気が供給される。このため、最上段冷凍貯蔵容器６３内の食品は急速に冷却されていくことになる。また、本実施例では、下部冷凍室５の最上段貯蔵容器６３にアルミトレイを配置した例について示したが、冷蔵室２内に複数段の貯蔵容器が存在し、このうち最上段の貯蔵容器をチルド冷却用にアルミトレイを配置し、この貯蔵容器を急速冷却の対象としても良い。   Here, an aluminum tray is laid as a metal heat conduction plate on substantially the entire surface of the uppermost frozen storage container 63, and a plurality of convex portions or concave portions are formed in the depth direction and the left-right direction on the upper surface of the aluminum tray. Has been. Aluminum itself is a material having high thermal conductivity, and the surface area is increased by a plurality of irregularities, so that the cooling performance of the uppermost frozen storage container 63 is higher than that of the upper frozen storage container 61 and the lower frozen storage container 62. It is high. Then, the cold air is supplied from the vertical outlet of the uppermost frozen storage container 63, specifically, from the outlet at the substantially same height as the uppermost frozen storage container 63 on the back side of the lower freezer compartment 5. For this reason, the food in the uppermost frozen storage container 63 is rapidly cooled. In the present embodiment, an example in which an aluminum tray is disposed in the uppermost storage container 63 of the lower freezer compartment 5 is shown. However, there are a plurality of storage containers in the refrigerator compartment 2, and among these, the uppermost storage container An aluminum tray may be arranged for chilled cooling, and this storage container may be a target for rapid cooling.

１…冷蔵庫、１０…冷蔵庫本体、２…冷蔵室、３…製氷室、４…上部冷凍室、５…下部冷凍室、６…野菜室、１２…圧縮機、１３…冷却器収納室、１７ａ…上側断熱仕切壁、１７ａ１…ガイド部、１８…横仕切壁、１９…冷却器、２０…送風ファン、５０…第１の温度検知手段、５０ａ…サーミスタ、５０ｂ…信号線、５０ｃ…コネクタ、５０ｄ…制御装置コネクタ、５１…背面壁、５２…第２の温度検知手段、５３…縦仕切部、５３ａ…垂直部材、５３ａ１…取付部、５３ａ２…切欠部、５３ｂ…底面部材、５４…奥行方向下端部分、７０１…ねじボス、７０２…水抜き穴、７０２ａ…リブ、７０３…格子   DESCRIPTION OF SYMBOLS 1 ... Refrigerator 10 ... Refrigerator main body, 2 ... Refrigeration room, 3 ... Ice making room, 4 ... Upper freezing room, 5 ... Lower freezing room, 6 ... Vegetable room, 12 ... Compressor, 13 ... Cooler storage room, 17a ... Upper heat insulating partition wall, 17a1 ... guide portion, 18 ... horizontal partition wall, 19 ... cooler, 20 ... fan, 50 ... first temperature detecting means, 50a ... thermistor, 50b ... signal wire, 50c ... connector, 50d ... Control device connector 51 ... Back wall 52 ... Second temperature detection means 53 ... Vertical partitioning part 53a ... Vertical member 53a1 ... Mounting part 53a2 ... Notch part 53b ... Bottom member 54 ... Lower end in the depth direction , 701 ... Screw boss, 702 ... Drain hole, 702a ... Rib, 703 ... Lattice

Claims (6)

冷蔵室及び冷凍室を形成する断熱箱体と、冷気を生成する冷凍サイクルと、前記冷凍サイクルからの冷気を送風ファンによって前記冷蔵室及び前記冷凍室に供給する冷気供給路と、前記冷蔵室と前記冷凍室を区画する断熱仕切壁とを備えた冷蔵庫において、
前記冷凍室は、
左上部冷凍室と、
該左上部冷凍室の側方に設けられた右上部冷凍室と、
前記左上部冷凍室と前記右上部冷凍室を仕切る縦仕切部と、
該縦仕切部の下方に設けられた下部冷凍室と、
を備え、
前記縦仕切部の下面よりも所定距離だけ上方に凹んだ位置に、前記冷凍室の温度を測定するサーミスタが設けられることを特徴とする冷蔵庫。 A heat insulating box that forms a refrigerator compartment and a freezer compartment, a refrigeration cycle that generates cold air, a cold air supply passage that supplies the cold air from the refrigeration cycle to the refrigerator compartment and the freezer compartment by a blower fan, and the refrigerator compartment In a refrigerator comprising a heat insulating partition wall that partitions the freezer compartment,
The freezer compartment
The upper left freezer,
An upper right freezer provided on the side of the upper left freezer;
A vertical partition that partitions the upper left freezer compartment and the upper right freezer compartment;
A lower freezer compartment provided below the vertical partition;
With
A refrigerator, wherein a thermistor for measuring the temperature of the freezer compartment is provided at a position recessed upward by a predetermined distance from the lower surface of the vertical partition. 請求項１に記載の冷蔵庫において、
前記サーミスタは、前記縦仕切部の下面に形成された格子の上面に設けられることを特徴とする冷蔵庫。 The refrigerator according to claim 1,
The refrigerator is characterized in that the thermistor is provided on an upper surface of a lattice formed on a lower surface of the vertical partition. 請求項１または請求項２に記載の冷蔵庫において、
前記縦仕切部は、垂直部材と、該垂直部材の下部に取り付けられた底面部材からなり、
該底面部材の下面には、上下に貫通する水抜き穴と、該水抜き穴を囲むリブが設けられていることを特徴とする冷蔵庫。 In the refrigerator according to claim 1 or 2,
The vertical partition is composed of a vertical member and a bottom member attached to the lower part of the vertical member,
A refrigerator, wherein a bottom surface of the bottom member is provided with a drain hole penetrating vertically and a rib surrounding the drain hole. 請求項１または請求項２に記載の冷蔵庫において、
前記縦仕切部は、垂直部材と、該垂直部材の下部にねじ止めされた底面部材からなり、
該底面部材は上面には、前記サーミスタと、ねじボスが設けられており、
前記サーミスタの信号線は前記ねじボスに巻き付けられていることを特徴とする冷蔵庫。 In the refrigerator according to claim 1 or 2,
The vertical partition is composed of a vertical member and a bottom member screwed to the lower part of the vertical member,
The bottom member is provided on the top with the thermistor and a screw boss,
The refrigerator, wherein the signal line of the thermistor is wound around the screw boss. 請求項１または請求項２に記載の冷蔵庫において、
前記縦仕切部は前記断熱箱体の上内面をスライドさせて取り付けるものであり、
前記縦仕切部の前記スライド方向の端面には、前記サーミスタの信号線が収納される切欠部が設けられていることを特徴とする冷蔵庫。 In the refrigerator according to claim 1 or 2,
The vertical partition is attached by sliding the upper inner surface of the heat insulation box,
The refrigerator characterized by the above-mentioned. The refrigerator has the notch part in which the signal line of the thermistor is accommodated in the end surface of the said sliding direction of the said vertical partition part. 請求項１または請求項２に記載の冷蔵庫において、
前記サーミスタは、前記下部冷凍室に配置される複数段の貯蔵容器のうち最上段貯蔵容器の鉛直投影内に設けられ、
該サーミスタの測定結果に基づいて、食品が収納された前記最上段貯蔵容器を急速冷却することを特徴とする冷蔵庫。 In the refrigerator according to claim 1 or 2,
The thermistor is provided in a vertical projection of the uppermost storage container among a plurality of storage containers arranged in the lower freezer compartment,
A refrigerator characterized in that the uppermost storage container in which food is stored is rapidly cooled based on a measurement result of the thermistor.

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