JP2017215117A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator capable of performing cooling of a freezing chamber efficiently by saving a space.SOLUTION: A refrigerator includes: a cooling chamber 23 which is arranged behind a freezing chamber, and in which a cooler 24 and a cooling fan for supplying cold air to a refrigeration chamber and the freezing chamber are stored; a refrigeration chamber damper for controlling the cold air supplied from the cooling chamber 23 to the refrigeration chamber; and a freezing chamber damper 68 provided in a freezing chamber cold air return passage in which the cold air supplied to the freezing chamber is returned to the cooling chamber 23. A damper is not provided in a cold air exhaust passage in which the cold air is supplied to the freezing chamber from the cooling chamber 23, and the cooling chamber 23 and the freezing chamber are kept in a communicating state. Thereby, in the refrigerator including the damper for freezing chamber, a space around a cooler storage chamber can be suppressed without increasing the space of the cool air discharge air passage, and volume efficiency in the refrigerator can be enhanced.SELECTED DRAWING: Figure 29

Description

本発明は冷凍室用ダンパを備えた冷蔵庫に関するものである。   The present invention relates to a refrigerator provided with a freezer damper.

一般に冷蔵庫は、冷蔵庫本体背面の冷却室で冷気を生成し、その冷気を冷却ファンによって冷蔵室、冷凍室、野菜室等に循環させて各室内の食品を冷却するが、その際、冷蔵室への冷気循環量を調整する冷蔵室ダンパを備えるとともに、さらに冷凍室への冷気循環量を制御する冷凍室ダンパを設けて、冷蔵室と冷凍室を効率よく冷却できるようにしたものがある（例えば、特許文献１参照）。   Generally, a refrigerator generates cold air in a cooling room on the back of the refrigerator body, and circulates the cold air to a refrigerator room, a freezer room, a vegetable room, etc. by a cooling fan to cool food in each room. There is a refrigerator that adjusts the amount of refrigerated air and a refrigeration chamber damper that controls the amount of chilled air circulation to the freezer to efficiently cool the refrigerator and freezer (for example, , See Patent Document 1).

特開２０１１−７４５２号公報JP 2011-7451 A

しかしながら、上記従来の冷蔵庫では、冷凍室ダンパが、冷却器収納室から冷却ファンで冷凍室に送風される吐出風路内（冷却ファンカバー開口部）に配置されているので、冷気吐出風路のスペースが増大し、庫内容積が減少してしまうという課題を有している。   However, in the conventional refrigerator, the freezer damper is disposed in the discharge air passage (cooling fan cover opening) that is blown from the cooler housing chamber to the freezer compartment by the cooling fan. There is a problem that the space increases and the internal volume decreases.

本発明は上記従来の課題を解決するものであり、冷却器収納室周辺のスペースを抑制し庫内容積効率を高めることができる冷蔵庫を提供することを目的とする。   This invention solves the said conventional subject, and it aims at providing the refrigerator which can suppress the space around a cooler storage chamber and can raise the volumetric efficiency in a store | warehouse | chamber.

上記従来の課題を解決するために、本発明の冷蔵庫は、冷蔵室と冷凍室と、前記冷凍室の後方に配置され、前記冷蔵室と前記冷凍室とに冷気を供給する冷却器と冷却ファンとが収納された冷却室と、前記冷却室から前記冷蔵室に供給される冷気を制御する冷蔵室ダンパと、前記冷凍室に供給された冷気が前記冷却室に戻される冷凍室冷気戻り通路に設けられた冷凍室ダンパと、を備え、前記冷却室から前記冷凍室に供給される冷気吐出通路にはダンパを備えず、前記冷却室と前記冷凍室とは連通状態に保たれたものである。   In order to solve the above-described conventional problems, a refrigerator according to the present invention includes a refrigerator, a freezer, a cooler and a cooling fan that are arranged behind the refrigerator and supplies cold air to the refrigerator and the refrigerator. And a cooling chamber damper for controlling the cool air supplied from the cooling chamber to the refrigerating chamber, and a freezing chamber cool air return passage for returning the cool air supplied to the freezing chamber to the cooling chamber. A freezer compartment damper provided, a cool air discharge passage supplied from the cooling chamber to the freezer compartment is not provided with a damper, and the cooling chamber and the freezer compartment are kept in communication with each other. .

これにより、冷凍室用ダンパを備える冷蔵庫において、冷気吐出風路のスペースを増大することなく、冷却器収納室周辺のスペースを抑制することができる。   Thereby, in a refrigerator provided with a freezer damper, the space around the cooler storage chamber can be suppressed without increasing the space of the cool air discharge air passage.

本発明は、上記構成により、冷凍室用ダンパを備える冷蔵庫において、冷却器収納室周辺のスペースを抑制し、庫内容積効率を高めることができる。   According to the present invention, in the refrigerator including the freezer damper, the space around the cooler storage chamber can be suppressed and the internal volumetric efficiency can be increased.

本発明の実施の形態１における冷蔵庫の正面図Front view of the refrigerator in Embodiment 1 of the present invention 同冷蔵庫の内部を示す正面図Front view showing the inside of the refrigerator 同冷蔵庫の断面図Cross section of the refrigerator 同冷蔵庫の冷気流れを説明する説明図Explanatory drawing explaining the cold air flow of the refrigerator 同冷蔵庫の冷凍室を示す正面図Front view showing the freezer of the refrigerator 同冷蔵庫の冷却室を示す断面図Sectional drawing which shows the cooling chamber of the refrigerator 同冷蔵庫の野菜室ダクトと冷蔵室戻りダクトを示す断面図Sectional view showing vegetable compartment duct and refrigerator compartment return duct of the refrigerator 同冷蔵庫の冷却室部分を示す分解斜視図An exploded perspective view showing a cooling chamber portion of the refrigerator 同冷蔵庫の冷却室部分を冷却室側から見た分解斜視図The exploded perspective view which looked at the cooling room part of the refrigerator from the cooling room side 同冷蔵庫の冷却室形成板を一部残して冷却室を冷却室側から見た斜視図The perspective view which looked at the cooling chamber from the cooling chamber side, leaving a part of the cooling chamber forming plate of the refrigerator 同冷蔵庫の冷却室形成板と野菜室ダクトとの関係を冷凍室側から見て示す正面図Front view showing the relationship between the cooling chamber forming plate and the vegetable compartment duct of the refrigerator as viewed from the freezer compartment side 同冷蔵庫の冷却室形成板と野菜室ダクトとの関係を冷凍室側から見て示す斜視図The perspective view which shows the relationship between the cooling chamber formation board and vegetable compartment duct of the refrigerator seeing from the freezer compartment side 同冷蔵庫の冷蔵室を示す斜視図Perspective view showing the refrigerator compartment of the refrigerator 同冷蔵庫の冷蔵室を示す断面図Sectional drawing which shows the refrigerator compartment of the refrigerator 図１４ａのＡ部と、Ｂ部と、Ｃ部の水平断面を模式的に示した図The figure which showed the horizontal section of A part of Drawing 14a, B part, and C part typically 同冷蔵庫の冷蔵室ダクトの水平断面図Horizontal sectional view of the refrigerator compartment duct of the refrigerator 同冷蔵庫の冷蔵室ダクトの吐出口を示す説明図Explanatory drawing which shows the discharge port of the refrigerator compartment duct of the refrigerator 同冷蔵庫の冷蔵室を示す要部拡大断面図The principal part expanded sectional view which shows the refrigerator compartment of the refrigerator 同冷蔵庫の冷蔵室内部を示す正面図Front view showing the inside of the refrigerator in the refrigerator 同冷蔵庫の冷蔵室内部の要部を示す拡大正面図The enlarged front view which shows the principal part of the refrigerator compartment inside the refrigerator 同冷蔵庫の貯蔵室を示す分解斜視図An exploded perspective view showing a storage room of the refrigerator 同冷蔵庫の貯蔵室内におけるパーシャル室の後方部を背部から見た斜視図The perspective view which looked at the rear part of the partial room in the storage room of the refrigerator from the back 同冷蔵庫の貯蔵室内におけるパーシャル室の後方部を背部から見た拡大斜視図The enlarged perspective view which looked at the rear part of the partial room in the storage room of the refrigerator from the back 同冷蔵庫の貯蔵室内におけるパーシャル室の後方部を正面寄り背部から見た拡大斜視図The enlarged perspective view which looked at the rear part of the partial room in the storage room of the refrigerator from the front side back part 同冷蔵庫の貯蔵室内におけるパーシャル室の後方部の脱臭ユニット装着部を示す拡大側面図The expanded side view which shows the deodorizing unit mounting part of the rear part of the partial chamber in the storage room of the refrigerator 同冷蔵庫の貯蔵室内におけるパーシャル室の後方部の脱臭ユニット装着部を示す拡大斜視図The expansion perspective view which shows the deodorizing unit mounting part of the rear part of the partial chamber in the storage room of the refrigerator 同冷蔵庫の冷却器を取り外して冷却室を背部から見た斜視図The perspective view which removed the cooler of the refrigerator and looked at the cooling room from the back 同冷蔵庫の冷却器を取り外して冷却室を背部から見た正面図Front view of the refrigerator seen from the back with the refrigerator cooler removed 同冷蔵庫の冷凍室の背面板を示す正面図Front view showing the back plate of the freezer compartment of the refrigerator 同冷蔵庫の冷却室構成部品の分解斜視図Disassembled perspective view of cooling chamber components of the refrigerator 同冷蔵庫の冷却室を前方ななめ情報から見た斜視図The perspective view which looked at the cooling room of the refrigerator from the front lick information 同冷蔵庫の冷却室の要部を示す拡大断面図The expanded sectional view which shows the principal part of the cooling chamber of the refrigerator 同冷蔵庫の冷却室の要部を示す他の例の拡大断面図The expanded sectional view of the other example which shows the principal part of the cooling chamber of the refrigerator （ａ）同冷蔵庫の冷凍室ダンパを示す斜視図、（ｂ）同冷凍室ダンパの断面図(A) The perspective view which shows the freezer compartment damper of the refrigerator, (b) Sectional drawing of the freezer compartment damper

請求項１に記載の発明は、冷蔵室と冷凍室と、前記冷凍室の後方に配置され、前記冷蔵室と前記冷凍室とに冷気を供給する冷却器と冷却ファンとが収納された冷却室と、前記冷却室から前記冷蔵室に供給される冷気を制御する冷蔵室ダンパと、前記冷凍室に供給された冷気が前記冷却室に戻される冷凍室冷気戻り通路に設けられた冷凍室ダンパと、を備え、前記冷却室から前記冷凍室に供給される冷気吐出通路にはダンパを備えず、前記冷却室と前記冷凍室とは連通状態に保たれたことにより、冷凍室用ダンパを備える冷蔵庫において、冷気吐出風路のスペースを増大することなく、冷却器収納室周辺のスペースを抑制することができ、庫内容積効率を高めることができる。   According to the first aspect of the present invention, there is provided a refrigerating room, a freezing room, a cooling room disposed behind the freezing room, and a cooler for supplying cold air to the refrigerating room and the freezing room, and a cooling fan. A refrigerating room damper for controlling the cold air supplied from the cooling room to the refrigerating room, and a freezing room damper provided in a freezing room cold air return passage through which the cold air supplied to the freezing room is returned to the cooling room; , A cool air discharge passage supplied from the cooling chamber to the freezing chamber is not provided with a damper, and the cooling chamber and the freezing chamber are kept in communication with each other, so that the refrigerator includes a freezer damper. In this case, the space around the cooler storage chamber can be suppressed without increasing the space for the cool air discharge air passage, and the volumetric efficiency of the interior can be increased.

請求項２に記載の発明は、請求項１に記載の発明において、前記冷凍室と前記冷却室とを仕切る仕切板に前記冷凍室ダンパが配置されたことにより、さらに冷却器収納室周辺のスペースを抑制することができ、庫内容積効率を高めることができる。   According to a second aspect of the present invention, in the first aspect of the present invention, the freezer compartment damper is disposed on a partition plate that partitions the freezer compartment and the cooling compartment, thereby further providing a space around the cooler housing compartment. Can be suppressed, and the volumetric efficiency of the interior can be increased.

請求項３に記載の発明は、請求項１または２に記載の発明において、前記冷凍室ダンパは、枠体と駆動装置とフラップとを有し、前記フラップは駆動装置により前記冷却室側に
回動されることにより、さらに冷却器収納室周辺のスペースを抑制することができ、庫内容積効率を高めることができる。 The invention according to claim 3 is the invention according to claim 1 or 2, wherein the freezer compartment damper has a frame, a drive device, and a flap, and the flap is rotated toward the cooling chamber by the drive device. By being moved, the space around the cooler storage chamber can be further suppressed, and the internal volume efficiency can be increased.

請求項４に記載の発明は、請求項１または２に記載の発明において、前記冷凍室ダンパは、枠体と駆動装置とフラップとを有し、前記フラップは複数のルーバーを備え、前記駆動装置により開閉されることにより、フラップの動作に係るスペースを抑制することができ、庫内容積効率を高めることができる。   According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the freezer compartment damper includes a frame, a driving device, and a flap, and the flap includes a plurality of louvers, and the driving device By opening and closing, the space related to the operation of the flap can be suppressed, and the internal volumetric efficiency can be increased.

請求項５に記載の発明は、請求項１から４のいずれか一項に記載の発明において、前記冷凍室ダンパは、枠体と駆動装置とフラップとを有し、前記枠体およびフラップは垂直面に対して傾斜して配置されたことにより、冷凍室ダンパに付着する除霜水等の水切性が向上し、冷凍室ダンパの信頼性を高めることができる。   According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the freezer compartment damper includes a frame body, a driving device, and a flap, and the frame body and the flap are vertical. By disposing it with respect to the surface, drainage performance of defrost water and the like adhering to the freezer damper can be improved, and the reliability of the freezer damper can be improved.

請求項６に記載の発明は、請求項１から５のいずれか一項に記載の発明において、前記冷蔵室に供給された冷気が前記冷却室に戻される冷蔵室冷気戻り通路を前記冷却器の側部に備え、前記冷凍室ダンパは、枠体と駆動装置とフラップとを有し、前記駆動装置と前記フラップは併設され、正面視で前記駆動装置は前記冷蔵室冷気戻り通路側に配置されたことにより、冷却器に対する冷凍室ダンパの左右偏りを改善でき、冷却効率を高めることができる。   The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the cooler chamber cool air return passage through which the cool air supplied to the refrigerator room is returned to the cooler chamber is provided in the cooler. The freezing compartment damper is provided in a side part, and has a frame, a driving device, and a flap. The driving device and the flap are provided side by side, and the driving device is disposed on the cold room return passage side in a front view. As a result, the left-right bias of the freezer damper with respect to the cooler can be improved, and the cooling efficiency can be increased.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１〜図４は冷蔵庫の全体構成を説明する図、図５〜図１２は冷却室から野菜室への冷気供給構成を説明する図、図１３〜図２３は冷蔵室構成を説明する図、図２４〜図３１は冷凍室から冷却室に跨る部分の構成を説明する図である。 (Embodiment 1)
1-4 is a figure explaining the whole refrigerator structure, FIGS. 5-12 is a figure explaining the cold air supply structure from a cooling room to a vegetable room, FIGS. 13-23 is a figure explaining a refrigerator compartment structure, 24-31 is a figure explaining the structure of the part ranging from a freezing room to a cooling room.

＜１−１．冷蔵庫の全体構成＞
まず図１〜図４を用いて冷蔵庫の全体構成を説明する。 <1-1. Overall configuration of refrigerator>
First, the whole structure of a refrigerator is demonstrated using FIGS.

図１〜図４において、本実施の形態に係る冷蔵庫は、前方を開口した冷蔵庫本体１を備え、この冷蔵庫本体１は金属製の外箱２と、硬質樹脂製の内箱３と、前記外箱２および内箱３の間に発泡充填された発泡断熱材４とで構成してあり、仕切板５、６等によって複数の貯蔵室が仕切形成してある。また、前記冷蔵庫本体１の各貯蔵室は冷蔵庫本体１と同様の断熱構成を採用した回動式の扉７或いは引出し式の扉８、９、１０、１１で開閉自在としてある。   1 to 4, the refrigerator according to the present embodiment includes a refrigerator body 1 having an opening at the front. The refrigerator body 1 includes a metal outer box 2, a hard resin inner box 3, and the outside. It is comprised with the foam heat insulating material 4 filled with foam between the box 2 and the inner box 3, and the several storage chamber is partition-formed by the partition plates 5, 6 grade | etc.,. Each storage chamber of the refrigerator main body 1 is openable and closable by a rotary door 7 or drawer type doors 8, 9, 10, 11 adopting the same heat insulation structure as the refrigerator main body 1.

冷蔵庫本体１内に形成した貯蔵室は、最上部の冷蔵室１４と、冷蔵室１４の下に設けた温度帯切り替え可能な切替室１５と、切替室１５の横に設けた製氷室１６と、切替室１５および製氷室１６と最下部の野菜室１７との間に設けた冷凍室１８で構成している。そして、前記冷蔵室１４には複数の棚板２０が設けてあり、その下部には冷却温度帯の異なるパーシャル室２１とチルド室２２が上下二段に重ねて設けてある。   The storage room formed in the refrigerator main body 1 includes an uppermost refrigeration room 14, a switching room 15 provided under the refrigeration room 14 and capable of switching a temperature zone, an ice making room 16 provided beside the switching room 15, The freezing room 18 provided between the switching room 15 and the ice making room 16 and the lowermost vegetable room 17 is comprised. The refrigerating chamber 14 is provided with a plurality of shelf plates 20, and a lower portion thereof is provided with a partial chamber 21 and a chilled chamber 22 having different cooling temperature zones, which are stacked in two upper and lower stages.

上記冷蔵室１４は、冷蔵保存するための貯蔵室で、凍らない程度の低い温度、具体的には、通常１〜５℃に設定され冷却される。また、冷蔵室内に設けたパーシャル室２１は微凍結保存に適した−２〜−３℃に設定され、チルド室２２は冷蔵室１４よりも低くパーシャル室２１よりは高めの１℃前後の温度に設定され冷却される。   The refrigerator compartment 14 is a storage compartment for refrigerated storage, and is cooled at a low temperature that does not freeze, specifically, usually set to 1 to 5 ° C. Further, the partial chamber 21 provided in the refrigerator compartment is set to −2 to −3 ° C. suitable for micro-freezing preservation, and the chilled chamber 22 is set to a temperature around 1 ° C. lower than the refrigerator compartment 14 and higher than the partial chamber 21. Set and cooled.

野菜室１７は、冷蔵室１４と同等もしくは若干高く温度設定される貯蔵室で、具体的に
は、２〜７℃に設定され冷却される。この野菜室１７は野菜等の収納食品から発せられる水分により高湿度となるため、局所的に冷えすぎると結露することがある。そのため、比較的高い温度に設定することで冷却量を少なくし、局所的な冷えすぎによる結露発生を抑制している。 The vegetable room 17 is a storage room whose temperature is set equal to or slightly higher than that of the refrigerated room 14, and is specifically set to 2 to 7 ° C. and cooled. Since the vegetable compartment 17 becomes high humidity due to moisture generated from stored food such as vegetables, condensation may occur if it is too cold locally. For this reason, the amount of cooling is reduced by setting the temperature relatively high, and the occurrence of condensation due to local overcooling is suppressed.

冷凍室１８は、冷凍温度帯に設定される貯蔵室で、具体的には、通常−２２〜−１８℃に設定され冷却されるが、冷凍保存状態向上のため、例えば−３０℃や−２５℃などの低温に設定され冷却されることもある。   The freezing room 18 is a storage room set in a freezing temperature zone, specifically, normally set at −22 to −18 ° C. and cooled, but for example, −30 ° C. and −25 for improving the frozen storage state. It may be cooled at a low temperature such as ° C.

切替室１５は、庫内の温度が変更可能な貯蔵室であり、用途に応じて冷蔵温度帯から冷凍温度帯まで切り換えることができるようになっている。   The switching chamber 15 is a storage chamber in which the temperature in the warehouse can be changed, and can be switched from a refrigeration temperature zone to a freezing temperature zone according to the application.

一方、前記冷凍室１８の背面には冷却室２３が設けてあり、この冷却室２３には冷気を生成する冷却器２４と、冷気を前記各室に供給する冷却ファン２５とが設置してある。そして更に冷却器２４の下方にはガラス管ヒータ等で構成した除霜手段２６（以下、ガラス管ヒータと称す）が設けてある。   On the other hand, a cooling chamber 23 is provided on the back surface of the freezing chamber 18, and a cooling device 24 that generates cold air and a cooling fan 25 that supplies the cold air to the chambers are installed in the cooling chamber 23. . Further, a defrosting means 26 (hereinafter referred to as a glass tube heater) constituted by a glass tube heater or the like is provided below the cooler 24.

冷却器２４は、圧縮機２７と、コンデンサ（図示せず）と、放熱用の放熱パイプ（図示せず）と、キャピラリーチューブ（図示せず）とを環状に接続して冷凍サイクルを構成しており、圧縮機２７によって圧縮された冷媒の循環によって冷却を行う。   The cooler 24 includes a compressor 27, a condenser (not shown), a heat radiating pipe (not shown), and a capillary tube (not shown) connected in a ring shape to form a refrigeration cycle. Then, cooling is performed by circulation of the refrigerant compressed by the compressor 27.

また、冷却ファン２５は冷却器２４の上方に設けてあり、その下流側に連なる冷蔵室ダクト２８、冷凍室ダクト２９、野菜室ダクト３０を介して冷蔵室１４、冷凍室１８、野菜室１７等に冷気を供給し、これら各室を冷却するようになっている。   Moreover, the cooling fan 25 is provided above the cooler 24, and the refrigerator compartment 14, the freezer compartment 29, the vegetable compartment duct 30, and the refrigerator compartment 14, the freezer compartment 18, the vegetable compartment 17, etc. which are connected to the downstream side thereof. Cooling air is supplied to each of these chambers to cool them.

以下、上記冷却室２３、冷蔵室１４、冷凍室１８、野菜室１７の各室及びその冷却の構成について説明していく。   Hereinafter, the cooling chamber 23, the refrigerator compartment 14, the freezing compartment 18, the vegetable compartment 17, and the cooling configuration thereof will be described.

＜１−２．冷却室と冷気供給構成＞
図３と図５〜図１２を用いて冷却室と冷気供給構成について説明する。 <1-2. Cooling chamber and cool air supply configuration>
The cooling chamber and the cold air supply configuration will be described with reference to FIGS. 3 and 5 to 12.

冷却室２３は冷凍室１８の背面にあって図６に示すよう冷却室形成板３１と内箱３とによって形成してあり、冷却室形成板３１の上部に冷却ファン２５を装着することにより冷却器２４上方に冷却ファン２５を位置させてある。また、冷却室形成板３１の前面側には冷凍室背面板３２を装着して冷却ファン２５の下流側を覆い冷却室２３との間に冷却ファン下流側と連通する冷凍室ダクト２９を形成している。   The cooling chamber 23 is on the back of the freezing chamber 18 and is formed by the cooling chamber forming plate 31 and the inner box 3 as shown in FIG. 6, and cooling is performed by mounting the cooling fan 25 on the cooling chamber forming plate 31. A cooling fan 25 is positioned above the vessel 24. A freezer compartment back plate 32 is mounted on the front side of the cooling chamber forming plate 31 to cover the downstream side of the cooling fan 25 and to form a freezer compartment duct 29 communicating with the cooling fan downstream side between the cooling chamber 23. ing.

そして、上記冷却ファン２５の下流側には冷蔵室１４の冷蔵室ダクト２８と、野菜室１７の野菜室ダクト３０が、それぞれ異なる位置で別個に独立した形で接続してある。詳述すると、前記冷却ファン下流側の上部の上面は図４等に示すように冷蔵室１４と冷凍室１８を仕切る仕切板５に設けた第１冷気供給口３３を介して冷蔵室ダクト２８につながっており、冷却ファン下流側の上部の側方には図１０、図１１、図１２にも示すように第２冷気供給口３４を設けて野菜室ダクト３０が接続してある。すなわち、上記冷蔵室ダクト２８と野菜室ダクト３０は冷却室２３に対し、それぞれ異なる位置で別個に独立した形で接続してある。そして、冷却器２４で生成した冷気を冷却ファン２５によって前記第１冷気供給口３３と第２冷気供給口３４に別個に独立した形で供給し、冷蔵室ダクト２８と野菜室ダクト３０へと供給する。   And the refrigerator compartment duct 28 of the refrigerator compartment 14 and the vegetable compartment duct 30 of the vegetable compartment 17 are connected to the downstream side of the cooling fan 25 separately at different positions. More specifically, the upper surface of the upper part on the downstream side of the cooling fan is connected to the refrigerator compartment duct 28 via the first cold air supply port 33 provided in the partition plate 5 that partitions the refrigerator compartment 14 and the freezer compartment 18 as shown in FIG. As shown in FIGS. 10, 11 and 12, the second cold air supply port 34 is provided on the side of the upper part downstream of the cooling fan, and the vegetable compartment duct 30 is connected thereto. That is, the refrigerator compartment duct 28 and the vegetable compartment duct 30 are individually connected to the cooling compartment 23 at different positions. Then, the cold air generated by the cooler 24 is supplied to the first cold air supply port 33 and the second cold air supply port 34 separately by the cooling fan 25 and supplied to the refrigerator compartment duct 28 and the vegetable compartment duct 30. To do.

なお、上記冷却器２４の下方には図６に示すように冷却器２４ガラス管ヒータ２６を覆う傘状断面のヒータカバー３５が設置してあり、冷却室２３の底面には除霜水を外部に排
出する排水口３６が設けてある。 A heater cover 35 having an umbrella-like cross section covering the cooler 24 glass tube heater 26 is installed below the cooler 24 as shown in FIG. A drain outlet 36 for discharging is provided.

＜１−３．冷蔵室とその冷却構成＞
次に図３と図１３〜図２３を用いて冷蔵室とその冷却構成を説明する。 <1-3. Cold room and its cooling configuration>
Next, the refrigerator compartment and its cooling configuration will be described with reference to FIGS. 3 and 13 to 23.

冷蔵室１４は、冷蔵庫本体１の最上部に位置していて図３、図１４に示すように複数の棚板２０を有しており、背面に前記した冷蔵室ダクト２８が設けてある。   The refrigerator compartment 14 is located in the uppermost part of the refrigerator main body 1 and has a plurality of shelf boards 20 as shown in FIGS. 3 and 14, and the refrigerator compartment duct 28 described above is provided on the back surface.

冷蔵室ダクト２８は図１８に示すように発泡スチロールからなるダクト部材２８ａの冷蔵室側表面を樹脂製のダクトカバー２８ｂで覆って構成してあり、冷蔵室１４と冷凍室１８との間を仕切る仕切板５の第１冷気供給口３３を覆う如く冷蔵室背面に装着して冷却室２３と連通させてある。そして、上記第１冷気供給口３３には冷蔵室ダンパ３７を組み込み、この冷蔵室ダンパ３７の開閉によって冷却室２３から冷蔵室１４への冷気供給量を制御するようになっている。なお、この冷蔵室ダンパ３７はダンパ固定枠３８によって第１冷気供給口３３に固定してある。   As shown in FIG. 18, the refrigerator compartment duct 28 is configured by covering the refrigerator compartment side surface of a duct member 28 a made of expanded polystyrene with a resin duct cover 28 b, and partitioning the refrigerator compartment 14 and the freezer compartment 18. The first cold air supply port 33 of the plate 5 is attached to the back of the refrigerator compartment so as to cover the first cold air supply port 33 and communicated with the cooling chamber 23. A refrigeration room damper 37 is incorporated in the first cold air supply port 33, and the amount of cold air supplied from the cooling chamber 23 to the refrigeration room 14 is controlled by opening and closing the refrigeration room damper 37. The refrigerator compartment damper 37 is fixed to the first cold air supply port 33 by a damper fixing frame 38.

上記冷蔵室ダンパ３７は冷蔵室１４への冷気供給量を制御する冷蔵室用ダンパ部３９とパーシャル室２１への冷気供給量を制御するパーシャル室用ダンパ部４０とを有する二連式ダンパで構成してあり、冷蔵ダンパ駆動用モータユニット４１内の冷蔵及びパーシャル用の１つのモータ（図示せず）によって駆動する構成となっている。   The refrigerating room damper 37 is a double damper having a refrigerating room damper part 39 for controlling the amount of cold air supplied to the refrigerating room 14 and a partial room damper part 40 for controlling the amount of cold air supplied to the partial room 21. It is configured to be driven by one refrigeration and partial motor (not shown) in the refrigeration damper drive motor unit 41.

一方、上記冷蔵室１４の下部に設けたパーシャル室２１とチルド室２２のうち、上方に位置するチルド室２２は、図１４、図１５に示すように最下段の棚板となる天井板４３とその下方に位置するパーシャル室２１との間の冷蔵室横幅一杯に形成してあり、チルド室容器４４が出し入れ自在に設けてある。そして、上記チルド室２２の後方には冷蔵室ダクト２８の冷蔵室用ダンパ部３９下流側に連通する冷気入口２２ａが設けてあり、この冷気入口２２ａから冷気を取り込んで冷却するようになっている。   On the other hand, among the partial chamber 21 and the chilled chamber 22 provided in the lower part of the refrigerated chamber 14, the chilled chamber 22 located on the upper side has a ceiling plate 43 as a bottom shelf as shown in FIGS. The chilled room container 44 is formed so as to be fully inserted into and out of the refrigerating room between the partial room 21 located below the chilled room. A chilled air inlet 22a is provided behind the chilled chamber 22 so as to communicate with the downstream side of the refrigerated room damper portion 39 of the refrigerated chamber duct 28. The chilled air inlet 22a is used to cool the chilled air inlet 22a. .

上記チルド室２２は図１５に示すように天井板４３の後部にスリット状の冷気戻り口（チルド側）４５を設けるとともに、チルド室容器４４の後方部に前記冷気戻り口（チルド側）４５を介して冷蔵室１４とつながる冷気戻し通路部（チルド側）４６が設けてある。更に、前記チルド室容器４４の前端部には図１４に示すようにチルド室扉兼把手部４７の下方との間に冷蔵室１４内とつながる開口部４８を設けて、冷蔵室１４内の冷気がチルド室容器４４から溢れ出るチルド室冷却後の冷気とともにチルド室容器４４外周の間隙（図示せず）を通って、前記冷気戻し通路部（チルド側）４６へと流れるように構成してある。   As shown in FIG. 15, the chilled chamber 22 is provided with a slit-like cold air return port (chilled side) 45 at the rear part of the ceiling plate 43, and the cold air return port (chilled side) 45 is provided at the rear part of the chilled chamber container 44. A cold air return passage portion (chilled side) 46 connected to the refrigerator compartment 14 is provided. Further, an opening 48 connected to the inside of the refrigerator compartment 14 is provided at the front end of the chilled compartment container 44 between the lower portion of the chilled compartment door / handle portion 47 as shown in FIG. Flows through the gap (not shown) on the outer periphery of the chilled chamber container 44 and flows into the cold return passage section (chilled side) 46 together with the cold air after cooling the chilled chamber overflowing from the chilled chamber container 44. .

また、チルド室２２はそのチルド室容器４４の下方であるパーシャル室２１の天井板部材５０に温度調節用ヒータ４９を敷設し、下方に位置するパーシャル室２１からの冷輻射によりチルド室温度が設定温度より低くなると温度調節用ヒータ４９に通電して設定温度に維持するように構成してある。なお、上記温度調節用ヒータ４９はチルド室２２内の適所に設けたチルド室温度センサ（図示せず）によって制御する構成としてある。   In the chilled chamber 22, a temperature adjusting heater 49 is laid on the ceiling plate member 50 of the partial chamber 21 below the chilled chamber container 44, and the chilled chamber temperature is set by cold radiation from the partial chamber 21 located below. When the temperature is lower than the temperature, the temperature adjusting heater 49 is energized and maintained at the set temperature. The temperature adjusting heater 49 is controlled by a chilled chamber temperature sensor (not shown) provided at an appropriate position in the chilled chamber 22.

一方、チルド室２２の下方に位置するパーシャル室２１は、冷蔵庫本体１の内箱内壁面と貯水タンク室形成板（図示せず）と前記チルド室２２の底面ともなる天井板部材５０とで貯水タンク室横に区画形成してあり、前面開口部分はパーシャル室扉５１で開閉自在としてある。そして、パーシャル室２１の内部にパーシャル室容器５２が出し入れ自在に設けてある。   On the other hand, the partial chamber 21 located below the chilled chamber 22 stores water by an inner wall surface of the inner box of the refrigerator body 1, a water tank chamber forming plate (not shown), and a ceiling plate member 50 that also serves as a bottom surface of the chilled chamber 22. A compartment is formed on the side of the tank chamber, and the front opening is openable and closable by a partial chamber door 51. A partial chamber container 52 is provided inside the partial chamber 21 so as to be freely inserted and removed.

上記パーシャル室２１を構成する天井板部材５０には発泡スチロール等からなる断熱材
５３が組み込んであり、この断熱材５３に前記した冷蔵室ダクト２８のパーシャル室用ダンパ部４０下流側に連通するパーシャル冷気通路５４を形成してパーシャル室２１内に冷気を供給し冷却する構成としてある。 A heat insulating material 53 made of foamed polystyrene or the like is incorporated in the ceiling plate member 50 constituting the partial chamber 21, and the partial cold air communicating with the heat insulating material 53 on the downstream side of the partial chamber damper portion 40 of the refrigerator compartment duct 28 described above. A passage 54 is formed to supply cold air into the partial chamber 21 for cooling.

また、上記パーシャル室２１は、図１５及び図１９〜図２１に示すように前記チルド室２２と同様、その天井板部材５０の後部にスリット状の冷気戻り口（パーシャル側）５５を設けるとともに、パーシャル室容器５２の後方に空間部を設けて冷気戻り通路部（パーシャル側）５６が形成してあり、前記チルド室２２後方の冷気戻り通路部（チルド側）４６内の冷蔵室冷気とチルド室冷気が冷気戻り通路部（パーシャル側）５６へと流れるようにしてある。   Further, as shown in FIGS. 15 and 19 to 21, the partial chamber 21 is provided with a slit-like cold air return port (partial side) 55 at the rear portion of the ceiling plate member 50, as in the chilled chamber 22. A cold air return passage portion (partial side) 56 is formed by providing a space behind the partial chamber container 52, and the refrigeration chamber cold air and the chilled chamber in the cold air return passage portion (chilled side) 46 behind the chilled chamber 22. The cool air flows to the cool air return passage portion (partial side) 56.

そして更に、上記パーシャル室２１はその底面ともなる仕切板５の後部に冷気戻り通路部（パーシャル側）５６と連通する冷気合流戻り口５７を設け、この冷気合流戻り口５７に冷蔵室戻りダクト５８を接続して、前記冷蔵室１４、チルド室２２を冷却した冷気がパーシャル室容器５２から溢れ出るパーシャル室冷却冷気と合流して冷却室２３に戻るように構成してある。   Further, the partial chamber 21 is provided with a cold air confluence return port 57 communicating with the cold air return passage portion (partial side) 56 at the rear portion of the partition plate 5 serving as a bottom surface thereof, and the cold air confluence return port 57 is provided with a cold room return duct 58. Are connected so that the cold air that has cooled the refrigerator compartment 14 and the chilled chamber 22 merges with the partial chamber cooling cold air that overflows from the partial chamber container 52 and returns to the cooling chamber 23.

すなわち、冷蔵室１４、チルド室２２、パーシャル室２１の冷気を冷却室２３に戻すためのダクト部を、前記チルド室２２とパーシャル室２１の後方空間を利用して形成した形としてある。   That is, the duct part for returning the cold air in the refrigerator compartment 14, the chilled compartment 22, and the partial compartment 21 to the cooling compartment 23 is formed using the rear space of the chilled compartment 22 and the partial compartment 21.

なお、上記冷気戻り口（チルド側）４５と冷気戻り口（パーシャル側）５５とは上下に対向する位置に設け、冷気戻り口（パーシャル側）５５と冷気合流戻り口５７は位置ずれした位置に設けてある。   The cold air return port (chilled side) 45 and the cold air return port (partial side) 55 are provided at positions vertically opposite to each other, and the cold air return port (partial side) 55 and the cold air merging return port 57 are shifted from each other. It is provided.

また、上記冷気を冷却室２３へと戻す冷蔵室戻りダクト５８は図４や図２４、図２５等に示すように冷却室２３の側部（横）に設置し、その下端側部を冷却室２３の下部側面に開口させることにより冷却室２３に戻すように構成してある。この冷蔵室戻りダクト５８はその後面に設けた凹状溝５８ｂを内箱３の背面内壁面に圧接させて当該背面壁内面との間でダクト通路部を形成している。   Further, the refrigeration chamber return duct 58 for returning the cold air to the cooling chamber 23 is installed on the side (side) of the cooling chamber 23 as shown in FIGS. 4, 24, 25, etc. It is configured to return to the cooling chamber 23 by opening it in the lower side surface of 23. The refrigerating chamber return duct 58 forms a duct passage portion with the inner surface of the rear wall by pressing a concave groove 58b provided on the rear surface thereof against the inner wall surface of the rear surface of the inner box 3.

更にまた、前記パーシャル室２１には上記冷気戻り通路部（パーシャル側）５６の冷気戻り口（パーシャル側）５５と冷気合流戻り口５７との間の部分に、図１６、図１７に示すように冷蔵室１４の温度を検出して冷蔵室用ダンパ部３９を制御する冷蔵室温度センサ５９が設けてある。そして、上記冷蔵室温度センサ５９と冷蔵室ダクト２８を挟んで反対側の対角部分にパーシャル室２１の温度を検知してパーシャル室用ダンパ部４０を制御するパーシャル室温度センサ６０が設けてある。   Furthermore, in the partial chamber 21, the portion between the cold air return port (partial side) 55 and the cold air merging return port 57 of the cold air return passage portion (partial side) 56, as shown in FIGS. A refrigerator temperature sensor 59 for detecting the temperature of the refrigerator compartment 14 to control the refrigerator compartment 39 is provided. A partial chamber temperature sensor 60 for detecting the temperature of the partial chamber 21 and controlling the partial chamber damper section 40 is provided at the opposite diagonal portion across the refrigerator compartment temperature sensor 59 and the refrigerator compartment duct 28. .

更に、前記冷気戻り通路部（パーシャル側）５６の冷気戻り口（パーシャル側）５５と冷気合流戻り口５７との間には図２２、図２３に示すように冷気の流れに沿う如く脱臭ユニット６１が着脱自在に設けてある。   Further, a deodorizing unit 61 is provided between the cold air return port (partial side) 55 of the cold air return passage portion (partial side) 56 and the cold air merging return port 57 so as to follow the flow of the cold air as shown in FIGS. Is detachably provided.

なお、上記脱臭ユニット６１および冷蔵室温度センサ５９およびパーシャル室温度センサ６０は、何れも冷蔵室戻りダクト５８を構成するダクトカバー２８ｂの一部に設けた装着部２８ｂｂ（冷蔵室温度センサ５９およびパーシャル室温度センサ６０用の装着部は図示せず）に取付けて一体化してある。   The deodorizing unit 61, the refrigerating room temperature sensor 59, and the partial room temperature sensor 60 are all equipped with a mounting portion 28bb (a refrigerating room temperature sensor 59 and a partial room temperature sensor 59) provided in a part of the duct cover 28b constituting the refrigerating room return duct 58. A mounting portion for the room temperature sensor 60 is attached to and integrated with a chamber temperature sensor 60 (not shown).

また、図１４ｂは、図１４ａの冷蔵室ダクト２８における、Ａ部（冷蔵室ダンパ部）水平断面図と、Ｂ部（パーシャル室背面部）水平断面図と、Ｃ部（冷蔵室ダクト部）水平断面図とを模式的に示したものである。   14b is a horizontal cross-sectional view of part A (refrigerating room damper part), B part (partial rear part of the rear part), and horizontal part C (refrigerating room duct part) of the refrigerating room duct 28 of FIG. 14a. A cross-sectional view is schematically shown.

図１４ｂにおいて、冷蔵室ダクト２８におけるダクト部材２８ａの長辺Ｗと短辺Ｄの比で表されるＷ／Ｄ（以下、アスペクト比と言う）は、Ａ部アスペクト比（＝Ｗ１／Ｄ１）、Ｂ部アスペクト比（＝Ｗ２／Ｄ２）、Ｃ部アスペクト比（＝Ｗ３／Ｄ３）とすると、Ａ部アスペクト比＜Ｂ部アスペクト比＜Ｃ部アスペクト比の関係を有している。   In FIG. 14b, W / D (hereinafter referred to as the aspect ratio) represented by the ratio of the long side W and the short side D of the duct member 28a in the refrigerator compartment duct 28 is the A part aspect ratio (= W1 / D1), Assuming that the B part aspect ratio (= W2 / D2) and the C part aspect ratio (= W3 / D3), there is a relationship of A part aspect ratio <B part aspect ratio <C part aspect ratio.

また、図１４ｃは、冷蔵室ダクト２８の水平断面図、図１４ｄは、冷蔵室ダクト２８の吐出口を示す説明図である。   14C is a horizontal sectional view of the refrigerator compartment duct 28, and FIG. 14D is an explanatory view showing the discharge port of the refrigerator compartment duct 28. FIG.

図１４ｃ、図１４ｄにおいて、ダクト部材２８ａの冷蔵室側表面を覆うダクトカバー２８ｂの左右両側部には左右に延出して一体形成された延出リブ２８ｃを備えている。   14c and 14d, the right and left side portions of the duct cover 28b that covers the refrigerator compartment side surface of the duct member 28a are provided with extending ribs 28c that are integrally formed extending left and right.

延出リブ２８ｃは奥面側に傾斜した傾斜面を備え、端部はさらに角度を大きくして奥側に延出している。延出リブ２８ｃはユーザーが冷蔵室を前方から見た時に側面吐出口２８ｄが直接見えない程度に延出している。   The extending rib 28c has an inclined surface inclined to the back surface side, and the end portion extends further to the back side with a larger angle. The extending rib 28c extends to such an extent that the side discharge port 28d is not directly visible when the user views the refrigerator compartment from the front.

また、側面吐出口２８ｄの下面は冷気の流れに対して上方となる傾斜面を有している。   Further, the lower surface of the side discharge port 28d has an inclined surface that is upward with respect to the flow of cold air.

＜１−４．冷凍室とその冷却構成＞
次に図２、図３と図２４〜図３１を用いて冷凍室とその冷却構成を説明する。 <1-4. Freezer room and its cooling configuration>
Next, the freezer compartment and its cooling configuration will be described with reference to FIGS. 2 and 3 and FIGS.

冷凍室１８は冷蔵室１４の下方で、かつ冷却室２３の前方にあって、内部に下段容器６２ａとその上方に載置した上段容器６２ｂとからなる冷凍室容器６２が扉１１の引出し開閉によって出し入れ自在なるように設けてある。そして、既に述べた通り冷却室２３との間に冷凍室背面板３２を配置し、この冷凍室背面板３２と冷却室形成板３１との間に冷却室２３の冷却ファン下流側と連通する冷凍室ダクト２９を形成している。   The freezer compartment 18 is below the refrigerator compartment 14 and in front of the cooler compartment 23, and the freezer compartment container 62, which is composed of a lower container 62a and an upper container 62b placed thereabove, is opened and closed by the drawer 11 being opened and closed. It is provided so that it can be inserted and removed freely. Then, as described above, the freezer compartment back plate 32 is disposed between the freezer compartment plate 23 and the freezer compartment back plate 32 and the cooler chamber forming plate 31 so as to communicate with the cooling fan downstream side of the cooler chamber 23. A chamber duct 29 is formed.

冷凍室背面板３２には図２４等に示すように上下複数段に亘って冷気吹出し口６３が設けてあり、最上部の冷気吹出し口６３は製氷室１６および切替室１５に冷気を供給し、中段の冷気吹出し口６３は上記冷凍室容器６２の上段容器６２ｂに冷気を供給し、最下段の冷気吹出し口６３は下段容器６２ａに冷気を供給するようになっている。   As shown in FIG. 24 and the like, the freezer compartment back plate 32 is provided with cold air outlets 63 in a plurality of upper and lower stages, and the uppermost cold air outlet 63 supplies cold air to the ice making chamber 16 and the switching chamber 15. The cold air outlet 63 in the middle stage supplies cold air to the upper container 62b of the freezer compartment 62, and the cold air outlet 63 in the lowermost stage supplies cold air to the lower container 62a.

また、上記冷凍室１８は図２４等に示すようにその冷凍室背面板３２の下部に前記冷却室２３の下部に連通する冷凍冷気戻り口６４が設けてある。この冷凍冷気戻り口６４は図２９に示すように冷凍室側口枠部６５と冷却室側口枠部６６とからなっていて、これらの枠は垂線に対し上部にいくほど後方、すなわち冷却室２３側に位置するように傾斜させてある。そして、上記冷凍冷気戻り口６４にはその冷凍室側口枠部６５にグリル６７を装着し、冷却室側口枠部６６には冷凍室ダンパ６８が設けてある。   Further, as shown in FIG. 24 and the like, the freezing chamber 18 is provided with a freezing cold air return port 64 communicating with the lower portion of the cooling chamber 23 at the lower portion of the freezer rear plate 32. As shown in FIG. 29, the freezing / cooling air return port 64 is composed of a freezing chamber side opening frame portion 65 and a cooling chamber side opening frame portion 66. It is inclined so as to be located on the 23 side. The freezing / cooling air return port 64 is provided with a grill 67 on the freezer side opening frame portion 65, and a freezing chamber damper 68 is provided on the cooling chamber side opening frame portion 66.

冷凍室側口枠部６５に設けたグリル６７は、冷凍室１８から冷却室２３へと流れる冷気を整流するもので、その各グリル片６９は冷却室側端部が上方に位置するように傾斜させ、かつ、下方のグリル片６９になるほど前後長が長くなるようにして冷凍室１８内の冷凍室容器６２後面に沿う形としてある。   The grill 67 provided in the freezer compartment side frame 65 rectifies the cold air flowing from the freezer compartment 18 to the cooling compartment 23, and each grille piece 69 is inclined so that the end portion of the cooling compartment is located above. In addition, the length of the front and rear is increased as the lower grill piece 69 is formed, and the shape is along the rear face of the freezer compartment 62 in the freezer compartment 18.

一方、冷却室側口枠部６６に設けた冷凍室ダンパ６８は、冷凍室１８に供給される冷気を開閉制御するもので、図３１に示すように耐熱性樹脂、例えばポリフェニレンサルファイド樹脂（ＰＰＳ樹脂）で形成したダンパ枠体７０に同様の耐熱性樹脂で形成した複数のフラップ７１、この例では三つのフラップ７１を設けて構成してある。そして、上記冷凍室ダンパ６８は各複数のフラップ７１の冷却室側端部を軸支して図２９に示すように冷凍室１８とは反対の冷却室２３側に開くように構成してあり、ダンパ枠体７０の一端部に固
定した冷凍ダンパ駆動用モータユニット７２によって駆動する構成としてある。なお、図３１において複数のフラップ７１は実線の図番付与線のものが閉じたとき、破線図番付与線のものが開いた時を示している。 On the other hand, the freezer compartment damper 68 provided in the cooling chamber side opening frame portion 66 controls the opening and closing of the cool air supplied to the freezer compartment 18, and as shown in FIG. 31, a heat resistant resin such as polyphenylene sulfide resin (PPS resin). A plurality of flaps 71 formed of the same heat-resistant resin, in this example, three flaps 71 are provided on the damper frame 70 formed in (1). The freezer damper 68 is configured to pivot on the cooling chamber side end of each of the plurality of flaps 71 and open to the cooling chamber 23 side opposite to the freezer chamber 18 as shown in FIG. The structure is driven by a refrigeration damper driving motor unit 72 fixed to one end of the damper frame 70. In FIG. 31, a plurality of flaps 71 are shown when the solid line number assignment line is closed and when the broken line number assignment line is opened.

また、上記冷凍室ダンパ６８は図２５に示すように冷却室側口枠部６６に設けた爪片７３に冷凍ダンパ駆動用モータユニット７２を固定した状態のダンパ枠体７０を弾着係合させることにより冷却室形成板３１に装着しユニット化してあり、冷却室側口枠部６６の傾斜に沿って冷蔵室ダンパ３７の冷却室側が冷凍室側より下方に位置するように傾斜させて設けてある。   Further, the freezer compartment damper 68 is elastically engaged with a damper frame 70 in a state where the freezer damper driving motor unit 72 is fixed to a claw piece 73 provided in the cooling chamber side opening frame 66 as shown in FIG. Accordingly, the cooling chamber forming plate 31 is attached to the cooling chamber forming plate 31 as a unit, and the cooling chamber damper 37 has a cooling chamber side inclined along the inclination of the cooling chamber side opening frame portion 66 so as to be positioned below the freezing chamber side. is there.

さらに、冷凍室ダンパ６８は図２９から理解できるように各複数のフラップ７１に沿って冷却室２３へと流れる冷気が冷却器２４の下端縁に流れるように設けてある。この例では冷凍室ダンパ６８はその上部（ダンパ枠体７０の上片部分）が冷却器２４の下端縁より上方に位置し、かつ、その下部（ダンパ枠体７０の下辺部分）が冷却器２４の下端より下方に位置する如く設けることによって冷気を冷却器２４の下端縁より下方部分に流れるようにしてある。   Furthermore, as can be understood from FIG. 29, the freezer compartment damper 68 is provided so that the cool air flowing to the cooling chamber 23 along each of the plurality of flaps 71 flows to the lower end edge of the cooler 24. In this example, the upper part of the freezer damper 68 (the upper piece of the damper frame 70) is located above the lower edge of the cooler 24, and the lower part (the lower part of the damper frame 70) is the cooler 24. By providing it so as to be located below the lower end of the cooler, the cool air flows from the lower end edge of the cooler 24 to the lower part.

さらに加えて、上記冷凍室ダンパ６８はその下部（ダンパ枠体７０の下辺部分）がガラス管ヒータ２６より上方に位置するように設け、除霜時にガラス管ヒータ２６で熱せられた暖冷気が確実に触れるように設定してある。   In addition, the freezer compartment damper 68 is provided such that its lower part (the lower part of the damper frame 70) is located above the glass tube heater 26, so that the warm and cool air heated by the glass tube heater 26 during defrosting is ensured. It is set to touch.

その一方で、冷凍室ダンパ６８を支持している冷却室側口枠部６６の下辺６６ａは二重壁とし、その下面を円弧状にして冷却室２３に突き出す形（冷却室２３の底面２３ａよりガラス管ヒータ２６側に突き出す形）としてガラス管ヒータ２６からの輻射熱が直接照射するのを防止する構成とし、かつ、更に二重壁部分の間隙部分６６ｂは冷凍室１８に面して開放させて冷凍室冷気で冷却し過度に昇温するのを抑制する構成としてある。   On the other hand, the lower side 66a of the cooling chamber side opening frame portion 66 supporting the freezing chamber damper 68 is a double wall, and its lower surface is arcuate and protrudes into the cooling chamber 23 (from the bottom surface 23a of the cooling chamber 23). As a form protruding to the glass tube heater 26 side), the radiation heat from the glass tube heater 26 is prevented from being directly irradiated, and the gap portion 66b of the double wall portion faces the freezer compartment 18 and is opened. It is set as the structure which suppresses cooling with freezer compartment cold air and heating up excessively.

更にまた、前記冷凍室ダンパ６８は図２５に示すようにその冷凍ダンパ駆動用モータユニット７２がガラス管ヒータ２６の長手方向において、ガラス管ヒータ２６のヒータ部２６ａと対向しないようヒータ部２６ａから外方にずれた場所に位置するように配置してある。そしてこの例では上記冷凍ダンパ駆動用モータユニット７２を冷却室２３横の冷蔵室戻りダクト５８側に位置させることによって、冷凍ダンパ駆動用モータユニット７２がヒータ部２６ａの外方に位置する形をとりつつ、冷凍室ダンパ６８の複数のフラップ７１部分が冷却器２４の中心線寄り部分に位置するようにしてある。   Further, as shown in FIG. 25, the freezing chamber damper 68 is arranged so that the freezing damper driving motor unit 72 is removed from the heater portion 26a so as not to face the heater portion 26a of the glass tube heater 26 in the longitudinal direction of the glass tube heater 26. It is arranged so as to be located in a place shifted toward the direction. In this example, the refrigeration damper driving motor unit 72 is positioned on the side of the refrigeration chamber return duct 58 beside the cooling chamber 23 so that the refrigeration damper driving motor unit 72 is positioned outside the heater portion 26a. However, the plurality of flaps 71 of the freezer damper 68 are positioned closer to the center line of the cooler 24.

なお、冷凍室ダンパ６８は冷凍冷気戻り口６４のみに設けられており、冷却室２３から冷気吹出し口６３に至る冷気吐出通路にはダンパを備えず、冷却室２３と冷凍室１８とは連通状態に保たれている。   In addition, the freezer compartment damper 68 is provided only in the freezer cold air return port 64, and no cooler discharge passage is provided from the cooler chamber 23 to the cool air outlet 63, and the cooler chamber 23 and the freezer compartment 18 are in communication with each other. It is kept in.

＜１−５．野菜室とその冷却構成＞
次に図３、図４と図８〜図１２を用いて野菜室とその冷却構成について説明する。 <1-5. Vegetable room and its cooling configuration>
Next, the vegetable room and its cooling configuration will be described with reference to FIGS. 3, 4 and 8 to 12.

野菜室１７は、図３に示すように冷凍室１８下方の冷蔵庫本体１最下部に位置していて、冷凍室１８と同様野菜室容器１７ａが扉１０の引出し開閉によって出し入れ自在なるように設けてある。この野菜室１７に冷気を供給する野菜室ダクト３０は、図８、図９に示すように冷却室２３横の冷蔵室戻りダクト５８前面に重合させて配置してあり、その上部は図４及び図１０に示すように前記冷却室２３に設けた第２冷気供給口３４に接続してある。   As shown in FIG. 3, the vegetable compartment 17 is located at the lowermost part of the refrigerator body 1 below the freezer compartment 18, and is provided so that the vegetable compartment container 17 a can be freely inserted and removed by opening and closing the door 10 as with the freezer compartment 18. is there. The vegetable compartment duct 30 for supplying cold air to the vegetable compartment 17 is arranged by being superposed on the front surface of the refrigeration compartment return duct 58 beside the cooling compartment 23 as shown in FIGS. As shown in FIG. 10, it is connected to a second cold air supply port 34 provided in the cooling chamber 23.

この第２冷気供給口３４は既述した通り冷蔵室１４への冷気供給口となる第１冷気供給
口３３とは別個に独立した形で形成してある。すなわち、第２冷気供給口３４は冷却室２３の上方に位置する冷蔵室１４と冷凍室１８とを仕切る仕切板５より下方、即ち冷凍室１８の背面投影面積内であって、前記冷却ファン２５と略同じ高さ位置の冷却ファン下流側部分に設けてある。そして、この第２冷気供給口３４に接続した野菜室ダクト３０の下端は野菜室１７の上部に開口していて、野菜室１７に冷気を供給するようになっている。 As described above, the second cold air supply port 34 is formed separately and independently from the first cold air supply port 33 serving as the cold air supply port to the refrigerator compartment 14. That is, the second cold air supply port 34 is below the partition plate 5 that partitions the refrigerator compartment 14 and the freezer compartment 18 located above the cooler compartment 23, that is, within the rear projection area of the freezer compartment 18, and the cooling fan 25. Is provided in the downstream portion of the cooling fan at substantially the same height. And the lower end of the vegetable compartment duct 30 connected to this 2nd cold air supply port 34 is opened to the upper part of the vegetable compartment 17, and cold air is supplied to the vegetable compartment 17.

上記野菜室ダクト３０はその上端部の側部を開口７４させて第２冷気供給口３４に突き合わせ接続してあり、この接続部近傍、具体的には冷却ファン２５と略同じ高さ位置範囲に野菜室ダンパ７５を組み込んである。   The vegetable compartment duct 30 has an opening 74 at its upper end and an abutment connection to the second cold air supply port 34. In the vicinity of this connection portion, specifically, in the height position range substantially the same as that of the cooling fan 25. A vegetable room damper 75 is incorporated.

またこの野菜室ダンパ７５は図８に示すように冷蔵室戻りダクト５８の前面に形成した野菜室ダクト通路部となる凹状溝５８ｂに嵌め込み、この状態の冷蔵室戻りダクト５８の凹状溝５８ｂ前面に野菜室ダクト３０を嵌め込み装着することにより冷蔵室戻りダクト５８と野菜室ダクト３０との間で挟持固定してある。そして、上記野菜室ダクト３０および冷蔵室戻りダクト５８は発泡スチロール等の弾性力を有する材料で形成してあり、その弾性力によって両者間の気密性を確保すると同時に野菜室ダンパ７５の気密性も確保する構成としてある。   Further, as shown in FIG. 8, the vegetable compartment damper 75 is fitted into a concave groove 58b which is a vegetable compartment duct passage portion formed on the front surface of the refrigerating room return duct 58, and is formed on the front surface of the concave groove 58b of the refrigerating room return duct 58 in this state. The vegetable compartment duct 30 is fitted and mounted so as to be sandwiched and fixed between the refrigerator compartment return duct 58 and the vegetable compartment duct 30. The vegetable compartment duct 30 and the refrigerating compartment return duct 58 are formed of a material having elastic force such as foamed polystyrene, and the airtightness of the vegetable compartment damper 75 is secured at the same time by the elastic force. It is as composition to do.

なお、野菜室ダンパ７５は野菜ダンパ駆動用モータユニット７６によって駆動されるダンパ片７５ａが野菜室ダクト３０を流れる冷気と逆の方向、この例では上向きに開くように構成してある。これは前記した冷蔵室ダクト２８のダンパ開き方向とは反対の方向である。   The vegetable compartment damper 75 is configured such that a damper piece 75a driven by the vegetable damper drive motor unit 76 opens in the opposite direction to the cold air flowing through the vegetable compartment duct 30, in this example, upward. This is the direction opposite to the damper opening direction of the refrigerator compartment duct 28 described above.

また、野菜室１７を冷却した後の冷気はその天井面に設けた野菜室戻りダクト（図示せず）を介して冷却室２３に戻すようになっている。   The cold air after cooling the vegetable compartment 17 is returned to the cooling chamber 23 through a vegetable compartment return duct (not shown) provided on the ceiling surface.

以上のように構成した冷蔵庫について、以下、冷気の流れを中心にその動作と作用効果を説明する。   About the refrigerator comprised as mentioned above, the operation | movement and effect are demonstrated hereafter centering on the flow of cold air.

まず、本発明の特徴部分である冷蔵室と野菜室の冷却について説明する。   First, cooling of the refrigerator compartment and the vegetable compartment, which is a characteristic part of the present invention, will be described.

冷蔵庫は、冷蔵室１４の温度が設定温度より高くなると、圧縮機２７と冷却ファン２５を駆動し、冷却器２４で生成された冷気を、冷却ファン２５の下流側に供給する。   When the temperature of the refrigerator compartment 14 becomes higher than the set temperature, the refrigerator drives the compressor 27 and the cooling fan 25 and supplies the cold air generated by the cooler 24 to the downstream side of the cooling fan 25.

冷却ファン２５の下流側に供給された冷気は、冷却ファン下流側の上部上面に開口する第１冷気供給口３３より冷蔵室ダンパ３７を介して冷蔵室ダクト２８に供給され、冷蔵室ダクト２８の左右両側面部に開口させた冷気吹出し口（図示せず）から冷蔵室１４に吹き出し冷蔵室１４内を冷却する。   The cold air supplied to the downstream side of the cooling fan 25 is supplied to the cold room duct 28 from the first cold air supply port 33 opened on the upper upper surface on the downstream side of the cooling fan via the cold room damper 37. The inside of the refrigerating chamber 14 is cooled by blowing into the refrigerating chamber 14 from a cold air outlet (not shown) opened on the left and right side surfaces.

また、上記冷却ファン２５の下流側に供給された冷気は、冷却ファン下流側の上部側面に開口する第２冷気供給口３４より野菜室ダンパ７５を介して冷蔵室ダクト２８にも供給され、冷蔵室ダクト２８の下端開口から野菜室１７に供給され野菜室１７内を冷却する。   The cold air supplied to the downstream side of the cooling fan 25 is also supplied to the refrigerator compartment duct 28 via the vegetable compartment damper 75 from the second cold air supply port 34 opened on the upper side surface on the downstream side of the cooling fan. The vegetable chamber 17 is supplied from the lower end opening of the chamber duct 28 to cool the inside of the vegetable chamber 17.

そして、冷蔵室より冷却温度が高く設定されている野菜室１７の温度が設定温度になると野菜室ダンパ７５が閉じ、野菜室１７への冷気供給を停止し野菜室を設定温度に保つ。   And when the temperature of the vegetable compartment 17 set higher than the refrigerator compartment reaches the preset temperature, the vegetable compartment damper 75 is closed, the cold air supply to the vegetable compartment 17 is stopped, and the vegetable compartment is kept at the preset temperature.

この時、この冷蔵庫では、上記野菜室１７に冷気を供給する第２冷気供給口３４と冷蔵室１４に冷気を供給する第１冷気供給口３３とを、冷却室２３に対し別個に独立して設けて、冷却室２３から直接各ダクトへと冷気が独立して供給されるようにしてあるから、野菜室ダンパ７５が閉じても冷蔵室ダクト２８へと供給される冷気量は変化せず、野菜室ダ
ンパ７５が開いているときと同じ量が供給されることになる。 At this time, in this refrigerator, the second cold air supply port 34 for supplying cold air to the vegetable compartment 17 and the first cold air supply port 33 for supplying cold air to the refrigerator compartment 14 are separately and independently provided for the cooling chamber 23. Since cold air is supplied independently from the cooling chamber 23 directly to each duct, the amount of cold air supplied to the refrigerator compartment duct 28 does not change even when the vegetable room damper 75 is closed, The same amount as when the vegetable compartment damper 75 is open is supplied.

したがって、冷蔵室１４の冷却は野菜室１７に冷気を供給しているときと同じレベルで行うことができ、野菜室ダンパ７５の開閉に影響されることなく安定的に行うことができる。   Therefore, the refrigerator compartment 14 can be cooled at the same level as when the cold air is supplied to the vegetable compartment 17, and can be stably performed without being affected by the opening and closing of the vegetable compartment damper 75.

なお、この実施の形態では、上記第１冷気供給口３３は冷却ファン下流側の上部上面、第２冷気供給口３４は冷却ファン下流側の上部側面、というように、異なる面に開口させることによって、それぞれ別個に独立して冷却室２３に開口するように構成したが、同じ面、例えば冷却ファン下流側の上部上面に第１冷気供給口３３と第２冷気供給口３４を独立させて設けてもよく、この場合は互いの空気供給口に供給される冷気が他方のダンパの開閉によって影響されない程度に離しておけばよい。   In this embodiment, the first cold air supply port 33 is opened on different surfaces such as the upper upper surface on the downstream side of the cooling fan, and the second cold air supply port 34 is on the upper side surface on the downstream side of the cooling fan. The first cold air supply port 33 and the second cold air supply port 34 are provided independently on the same surface, for example, the upper upper surface on the downstream side of the cooling fan. In this case, it is sufficient to keep the cool air supplied to the air supply ports so that they are not affected by the opening and closing of the other damper.

また、上記野菜室ダクト３０は冷却室２３の冷却ファン下流側に直接接続して冷却室２３の前方に位置する冷凍室１８の背面投影面積範囲内で冷却室に接続した形としてあるから、野菜室ダクト３０は冷却室２３上方の冷蔵室１４と冷凍室１８との間を仕切る仕切板５部分を貫通経由することがなくなってその分だけダクト長さを短く、かつ、通路抵抗を少なくすることができる。   The vegetable compartment duct 30 is directly connected to the cooling fan downstream side of the cooling chamber 23 and is connected to the cooling chamber within the rear projection area range of the freezing chamber 18 located in front of the cooling chamber 23. The chamber duct 30 does not pass through the part of the partition plate 5 that partitions the refrigerator compartment 14 and the freezer compartment 18 above the cooling chamber 23, so that the duct length is shortened and the passage resistance is reduced accordingly. Can do.

その結果、野菜室ダクト３０や冷蔵室ダクト２８等を介して循環させる冷蔵庫全体の冷気循環量を増加、すなわち、冷却ファン２５によって循環させる冷蔵庫全体の冷気循環量を増加することができる。したがって冷気循環量が増加した分だけ冷却性能を向上させることができる。   As a result, it is possible to increase the amount of cold air circulating in the entire refrigerator circulated through the vegetable compartment duct 30 and the refrigerator compartment duct 28, that is, increase the amount of cold air circulating in the entire refrigerator circulated by the cooling fan 25. Therefore, the cooling performance can be improved by an amount corresponding to the increase in the amount of cool air circulation.

また、上記野菜室ダンパ７５は冷却室２３の冷却ファン２５とオーバ―ラップする高さ位置に設けてあるから、前記した冷却性能向上効果を生かしつつ動作不良を防止して冷蔵庫の信頼性を確保することができる。   Further, since the vegetable room damper 75 is provided at a height that overlaps the cooling fan 25 of the cooling chamber 23, the reliability of the refrigerator is ensured by preventing malfunctions while taking advantage of the above-mentioned cooling performance improvement effect. can do.

すなわち、野菜室１７は比較的高い温度に設定され湿度も高い状態となっているため、野菜室ダンパ７５が閉じて冷気循環が停止している時、この湿度の高い暖冷気が野菜室１７内から野菜室ダクト３０内へと逆流する場合がある。この湿度の高い暖冷気が野菜室ダンパ７５に触れると湿気が結露し、この結露した結露水が野菜室１７の冷却再開時、野菜室１７へと供給される冷気によって氷結し野菜室ダンパ７５が開閉不良となる場合がある。   That is, since the vegetable room 17 is set to a relatively high temperature and has a high humidity, when the vegetable room damper 75 is closed and the cold air circulation is stopped, this high temperature hot and cold air is generated in the vegetable room 17. May flow back into the vegetable compartment duct 30. When this hot and cold air with high humidity touches the vegetable compartment damper 75, moisture is condensed, and when the condensed water is cooled, the vegetable compartment damper 75 is frozen by the cold air supplied to the vegetable compartment 17. Opening / closing failure may occur.

しかしながら、この冷蔵庫では野菜室ダンパ７５を冷却ファン２５とオーバ―ラップする高さ位置に設けてあるあるから、その分野菜室１７から野菜室ダンパ７５までの距離を取って冷却器２４の高さ寸法分だけ上方へと離すことができ、冷気循環停止時に野菜室１７内の湿度の高い暖冷気が野菜室ダクト３０内に上昇して野菜室ダンパ７５に達しこれが結露するのを抑制することができる。   However, in this refrigerator, the vegetable compartment damper 75 is provided at a height that overlaps with the cooling fan 25, so that the distance from the vegetable compartment 17 to the vegetable compartment damper 75 is increased accordingly and the height of the cooler 24 is increased. It can be separated upward by the size, and when the cold air circulation is stopped, the hot and cold air with high humidity in the vegetable compartment 17 rises into the vegetable compartment duct 30 and reaches the vegetable compartment damper 75 to suppress condensation. it can.

したがって、野菜室１７への冷気循環再開時に野菜室ダンパ７５が氷結して動作不良を起こすのを防止でき、信頼性を確保することができる。   Therefore, it is possible to prevent the vegetable compartment damper 75 from icing and causing a malfunction when the cold air circulation to the vegetable compartment 17 is resumed, and to ensure reliability.

つまり、この実施の形態のように、野菜室ダクト３０は冷却室２３前方に位置する冷凍室１８の背面投影面積範囲内で冷却室２３に接続し、かつ、野菜室ダンパ７５は冷却ファン２５とオーバ―ラップする高さ位置に組み込むことによって、冷却性能を向上させつつ野菜室ダンパ７５の動作不良を抑制して信頼性を確保することができる。   That is, as in this embodiment, the vegetable compartment duct 30 is connected to the cooling compartment 23 within the rear projection area range of the freezing compartment 18 located in front of the cooling compartment 23, and the vegetable compartment damper 75 is connected to the cooling fan 25. By incorporating it in the overlapping height position, it is possible to improve the cooling performance and suppress the malfunction of the vegetable compartment damper 75 to ensure reliability.

また、前記野菜室ダンパ７５は上記野菜室ダクト３０に設けてあるから、野菜室ダクト
３０とは別の場所、例えば従来のように冷蔵室１４と冷凍室１８との間を仕切る仕切板５に別途野菜室ダンパを組み込むような場合に比べ野菜室ダンパ７５の組み込みが容易になり、生産性が大幅に向上する。 Further, since the vegetable compartment damper 75 is provided in the vegetable compartment duct 30, it is provided in a place different from the vegetable compartment duct 30, for example, a partition plate 5 that partitions the refrigerator compartment 14 and the freezer compartment 18 as in the past. Compared to the case of separately installing a vegetable room damper, the vegetable room damper 75 can be easily incorporated, and the productivity is greatly improved.

すなわち、この野菜室ダンパ７５は冷蔵庫本体１外で別途野菜室ダクト３０に組み込んでおいてこの野菜室ダクト３０を冷却室２３の横に組み込むだけで冷蔵庫本体１への組み込みができ、容易に冷蔵庫本体１へ組み込むことができる。しかも、冷却室２３前面の冷凍室背面板３２を着脱するだけで野菜室ダクト３０ごと着脱することができるので、メンテナンスも容易になり、利便性も向上する。   That is, the vegetable compartment damper 75 is separately incorporated outside the refrigerator body 1 into the vegetable compartment duct 30 and the vegetable compartment duct 30 can be incorporated into the refrigerator body 1 simply by incorporating it next to the cooling chamber 23. It can be incorporated into the main body 1. Moreover, since the vegetable compartment duct 30 can be attached and detached simply by attaching and detaching the freezer compartment back plate 32 in front of the cooling compartment 23, the maintenance becomes easy and the convenience is improved.

更にこの実施の形態では、上記野菜室ダクト３０は冷蔵室１４から冷却室２３への冷蔵室戻りダクト５８に重合配置し、上記野菜室ダクト３０と冷蔵室戻りダクト５８は発泡スチロール等の弾性を有する材料で形成して、当該野菜室ダクト３０と冷蔵室戻りダクト５８とで野菜室ダンパ７５を挟持した構成としてあるから、生産性が更に向上する利点がある。   Furthermore, in this embodiment, the vegetable compartment duct 30 is superposed on the refrigerator compartment return duct 58 from the refrigerator compartment 14 to the refrigerator compartment 23, and the vegetable compartment duct 30 and the refrigerator compartment return duct 58 have elasticity such as polystyrene foam. Since the vegetable compartment damper 75 is sandwiched between the vegetable compartment duct 30 and the refrigerating compartment return duct 58, the productivity is further improved.

詳述すると、野菜室ダンパ７５は野菜室ダクト３０と冷蔵室戻りダクト５８とで挟持しているから、まず冷蔵庫本体１外で野菜室ダクト３０と冷蔵室戻りダクト５８とを組み付けて野菜室ダンパ７５を組み込んでおき、この野菜室ダンパ７５を組み込んだ野菜室ダクト３０と冷蔵室戻りダクト５８とのセット物を冷却室２３の横に組み込むだけで野菜室ダクト３０の冷蔵庫本体１への組み込みができ、生産性が向上するのである。   More specifically, since the vegetable room damper 75 is sandwiched between the vegetable room duct 30 and the refrigeration room return duct 58, the vegetable room damper 30 and the refrigeration room return duct 58 are first assembled outside the refrigerator main body 1. 75, and a set of the vegetable compartment duct 30 incorporating the vegetable compartment damper 75 and the refrigeration compartment return duct 58 is incorporated into the refrigerator body 1 just by incorporating the set of the vegetable compartment duct 30 beside the cooling chamber 23. And productivity is improved.

しかも、上記野菜室ダクト３０および冷蔵室戻りダクト５８は何れも発泡スチロールで形成していてこれが弾性力を有するので、この野菜室ダクト３０及び冷蔵室戻りダクト５８が持つ弾性力によってシール部材等を用いることなく野菜室ダンパ７５を気密状態で組み込むことができる。したがって、従来のように野菜室ダンパを仕切板に組み込む場合のように別途気密性確保のためのシール部材等を用いる必要がなくなり、構成の簡素化と工程の短縮が可能となり、更なる生産性の向上を実現することができる。   Moreover, since the vegetable compartment duct 30 and the refrigerator compartment return duct 58 are both made of foamed polystyrene and have elastic force, a sealing member or the like is used by the elastic force of the vegetable compartment duct 30 and refrigerator compartment return duct 58. The vegetable compartment damper 75 can be incorporated in an airtight state without any problems. Therefore, there is no need to use a separate sealing member for securing airtightness as in the case where the vegetable compartment damper is incorporated into the partition plate as in the conventional case, the configuration can be simplified and the process can be shortened, and further productivity can be achieved. Improvement can be realized.

加えて上記野菜室ダンパ７５は野菜室ダクト３０と冷蔵室戻りダクト５８とによって弾性支持されることになるので、開閉動作時等に生じがちな微振動による騒音発生を抑制することができ、静穏性の高い冷蔵庫とすることができる。   In addition, since the vegetable compartment damper 75 is elastically supported by the vegetable compartment duct 30 and the refrigerator compartment return duct 58, it is possible to suppress the generation of noise due to micro-vibration that tends to occur during opening and closing operations. It can be set as a highly efficient refrigerator.

次に冷蔵室の冷却及び冷気戻り動作について説明する。   Next, cooling in the refrigerator compartment and cold air returning operation will be described.

冷蔵室１４は既述した通り冷蔵室ダクト２８を介して冷気が供給され冷却される。この時、前記冷蔵室ダクト２８に供給された冷気の一部が冷蔵室１４下部に設けたパーシャル室２１とチルド室２２にも供給され各室が冷却される。   The refrigerator compartment 14 is cooled by supplying cold air through the refrigerator compartment duct 28 as described above. At this time, a part of the cool air supplied to the refrigerator compartment duct 28 is also supplied to the partial chamber 21 and the chilled chamber 22 provided in the lower part of the refrigerator compartment 14 to cool each chamber.

上記各室の冷却において、前記冷蔵室１４は冷蔵室温度センサ５９からの出力に基づき動作する冷蔵室用ダンパ部３９の開閉によって制御され、設定温度に維持される。   In the cooling of each chamber, the refrigerator compartment 14 is controlled by opening and closing the refrigerator compartment damper 39 that operates based on the output from the refrigerator compartment temperature sensor 59, and is maintained at a set temperature.

また、チルド室２２は冷蔵室１４とともに前記冷蔵室用ダンパ部３９の開閉によって冷却が制御され、下方に位置するパーシャル室２１からの冷輻射によって冷蔵室１４よりは低めの温度に維持される。   The chilled chamber 22 is controlled to cool together with the refrigerator compartment 14 by opening and closing the refrigerator compartment damper 39 and is kept at a lower temperature than the refrigerator compartment 14 by the cold radiation from the partial chamber 21 located below.

この時、チルド室２２はパーシャル室２１からの冷輻射が強くて設定温度を下回る、すなわち冷えすぎ状態となることがあるが、このような場合にはチルド室温度センサ（図示せず）からの出力に基づきチルド室底面に敷設した温度調節用ヒータ４９が発熱しチルド室２２を設定温度に維持する。   At this time, the chilled chamber 22 has a strong cold radiation from the partial chamber 21 and may fall below the set temperature, that is, it may be too cold. In such a case, a chilled chamber temperature sensor (not shown) Based on the output, the temperature adjusting heater 49 installed on the bottom of the chilled chamber generates heat and maintains the chilled chamber 22 at a set temperature.

更に、パーシャル室２１はパーシャル室温度センサ６０からの出力に基づき動作するパーシャル室用ダンパ部４０の開閉によって冷却が制御され、設定温度に維持される。   Further, the cooling of the partial chamber 21 is controlled by opening and closing the partial chamber damper 40 that operates based on the output from the partial chamber temperature sensor 60, and is maintained at the set temperature.

このようにこの冷蔵庫は冷蔵室１４の下部に設けたチルド室２２とパーシャル室２１をそれぞれ異なる温度帯で冷却制御することができ、使い勝手が向上する。   As described above, this refrigerator can control the cooling of the chilled chamber 22 and the partial chamber 21 provided in the lower part of the refrigerator compartment 14 in different temperature zones, thereby improving usability.

しかも、この冷蔵庫では前記したように野菜室１７の冷却を制御すべくその野菜室ダンパ７５を開閉しても冷蔵室１４に供給される冷気量が変化せず一定の安定したものとなるので、高い制御精度を必要とするチルド室２２やパーシャル室２１の温度精度を要望通り高いものとすることができ、これによって各室での食材の保存品質を高めることができる。   Moreover, in this refrigerator, since the amount of cold air supplied to the refrigerator compartment 14 does not change even if the vegetable compartment damper 75 is opened and closed to control the cooling of the vegetable compartment 17 as described above, the refrigerator becomes constant and stable. The temperature accuracy of the chilled chamber 22 and the partial chamber 21 that require high control accuracy can be increased as desired, thereby improving the storage quality of food in each chamber.

なお、この実施の形態ではチルド室２２とパーシャル室２１の二室を設けたものを例示したが、これはいずれか一室のみであってもよいものである。   In this embodiment, the two chambers of the chilled chamber 22 and the partial chamber 21 are illustrated, but this may be only one of them.

また、冷蔵室ダクト２８におけるダクト部材２８ａの長辺Ｗと短辺Ｄの比で表されるＷ／Ｄ（以下、アスペクト比と言う）は、Ａ部アスペクト比（＝Ｗ１／Ｄ１）、Ｂ部アスペクト比（＝Ｗ２／Ｄ２）、Ｃ部アスペクト比（＝Ｗ３／Ｄ３）とすると、Ａ部アスペクト比＜Ｂ部アスペクト比＜Ｃ部アスペクト比の関係を有しているので、冷蔵室ダクトのアスペクト比を適切に設定できるため、実効内容積を大きくでき、冷蔵室ダクトの意匠性を損なうことなく冷却性能を確保することができる。   Further, W / D (hereinafter referred to as aspect ratio) represented by the ratio of the long side W to the short side D of the duct member 28a in the refrigerator compartment duct 28 is an A portion aspect ratio (= W1 / D1), a B portion. Assuming that the aspect ratio (= W2 / D2) and the C part aspect ratio (= W3 / D3), there is a relationship of A part aspect ratio <B part aspect ratio <C part aspect ratio. Since the ratio can be set appropriately, the effective internal volume can be increased, and the cooling performance can be ensured without impairing the design of the refrigerator compartment duct.

また、ダクト部材２８ａの冷蔵室側表面を覆うダクトカバー２８ｂの左右両側部には左右に延出して一体形成された延出リブ２８ｃを備えているので、前方から直接、冷蔵室ダクトの前面側部の側面吐出口２８ｄが見えず、冷蔵室内の意匠性を高めることができる。   Further, since the left and right sides of the duct cover 28b covering the refrigerator compartment side surface of the duct member 28a are provided with extending ribs 28c that are integrally formed extending left and right, the front side of the refrigerator compartment duct directly from the front side. The side discharge port 28d is not visible, and the design of the refrigerator compartment can be improved.

また、側面吐出口２８ｄの下面は冷気の流れに対して上方となる傾斜面を有しているので、下方から上方へ流れる冷気の風路抵抗を低減することができ、さらに冷蔵室の冷却性能を高めることができる。   Further, since the lower surface of the side discharge port 28d has an inclined surface that is upward with respect to the flow of cold air, the air path resistance of the cold air flowing from below to above can be reduced, and further the cooling performance of the refrigerator compartment Can be increased.

次に上記冷蔵室１４、チルド室２２、パーシャル室２１を冷却した後の冷気の冷却室２３への戻り動作について説明する。   Next, the return operation of the cool air after cooling the refrigerator compartment 14, the chilled chamber 22, and the partial chamber 21 to the cooling chamber 23 will be described.

冷蔵室１４を冷却した冷気は、まずチルド室２２天井面後方の冷気戻り口（チルド側）４５およびチルド室扉兼把手部４７下方の開口部４８とチルド室容器４４外周部の間隙を介してチルド室２２後方の冷気戻り通路部（チルド側）４６へと流れる。   The cold air that has cooled the refrigerator compartment 14 is first passed through the gap between the cold air return port (chilled side) 45 behind the chilled chamber 22 ceiling and the opening 48 below the chilled chamber door / handle portion 47 and the outer periphery of the chilled chamber container 44. It flows to the cold air return passage part (chilled side) 46 behind the chilled chamber 22.

チルド室２２後方の冷気戻り通路部（チルド側）４６へと流れた冷気は、パーシャル室２１の天井板部材５０に設けた冷気戻り口（パーシャル側）５５よりパーシャル室２１後方の冷気戻り通路部（パーシャル側）５６へと流れる。   The cold air flowing to the cold air return passage portion (chilled side) 46 behind the chilled chamber 22 flows from the cold air return port (partial side) 55 provided in the ceiling plate member 50 of the partial chamber 21 to the cold air return passage portion behind the partial chamber 21. It flows to (partial side) 56.

そして、パーシャル室２１後方の冷気戻り通路部（パーシャル側）５６へと流れた冷気は、パーシャル室２１の底面となる仕切板５に設けた冷気合流戻り口５７より冷蔵室戻りダクト５８を介して冷却室２３へと戻る。   Then, the cold air flowing to the cold air return passage portion (partial side) 56 behind the partial chamber 21 passes through the cold chamber return duct 57 from the cold air confluence return port 57 provided in the partition plate 5 serving as the bottom surface of the partial chamber 21. Return to the cooling chamber 23.

この時、チルド室２２を冷却した冷気はチルド室容器４４から溢れ出てチルド室２２内の冷気戻り通路部（チルド側）４６で前記冷蔵室１４からの冷気と合流し、パーシャル室２１の天井板部材５０に設けた冷蔵冷気戻り口（パーシャル側）５５よりパーシャル室２１後方の冷気戻り通路部（パーシャル側）５６を通り、冷気合流戻り口５７より冷蔵室戻
りダクト５８を介して冷却室２３へと戻る。 At this time, the cold air that has cooled the chilled chamber 22 overflows from the chilled chamber container 44 and merges with the cold air from the refrigerated chamber 14 at the cold air return passage portion (chilled side) 46 in the chilled chamber 22, and the ceiling of the partial chamber 21. From the refrigerated cold air return port (partial side) 55 provided in the plate member 50, it passes through the cold air return passage portion (partial side) 56 behind the partial chamber 21, and passes through the cold air merging return port 57 through the cold room return duct 58. Return to.

また、パーシャル室２１の冷気はパーシャル室容器５２から溢れ出てパーシャル室２１後方の冷気戻り通路部（パーシャル側）５６へと流れ、前記冷蔵室１４およびチルド室２２からの冷気と合流して冷気合流戻り口５７より冷蔵室戻りダクト５８を介して冷却室２３へと戻る。   The cold air in the partial chamber 21 overflows from the partial chamber container 52 and flows to the cold air return passage portion (partial side) 56 behind the partial chamber 21, and merges with the cold air from the refrigeration chamber 14 and the chilled chamber 22. It returns to the cooling chamber 23 through the refrigeration chamber return duct 58 from the junction return port 57.

このようにこの冷蔵庫は、冷蔵室１４内のチルド室２２およびパーシャル室２１の後方に設けた冷気戻り通路部（チルド側）４６及び冷気戻り通路部（パーシャル側）５６と冷気戻り口（チルド側）４５および冷気戻り口（パーシャル側）５５を介して冷蔵室１４の冷気及びチルド室２２とパーシャル室２１の各冷気を冷却室２３に戻すことができる。したがって、これら各室の冷気を冷却室２３へと戻すダクト部を冷蔵室ダクト２８に沿って冷蔵室１４内に別途設ける必要がなくなる。よってその分冷蔵室１４の内容積を増加させることができ、より多くの食材を冷却保存できるようになる。   As described above, the refrigerator includes a cold air return passage portion (chilled side) 46 and a cold air return passage portion (partial side) 56 and a cold air return port (chilled side) provided at the rear of the chilled chamber 22 and the partial chamber 21 in the refrigerator compartment 14. ) 45 and the cold air in the chilled chamber 14 and the cold air in the chilled chamber 22 and the partial chamber 21 can be returned to the cooling chamber 23 through the cold air return port (partial side) 55. Accordingly, it is not necessary to separately provide a duct portion for returning the cold air of each chamber to the cooling chamber 23 along the refrigeration chamber duct 28 in the refrigeration chamber 14. Therefore, the internal volume of the refrigerator compartment 14 can be increased correspondingly, and more food can be stored in a cold state.

また、上記冷蔵室１４からチルド室２２を経由して冷気合流戻り口５７へと流れる冷気戻り通路部（パーシャル側）５６内の冷気の主流は、冷気戻り口（パーシャル側）５５と冷気合流戻り口５７とを結ぶ線上となる。この冷気はチルド室冷気及びパーシャル室冷気を含むがその大部分は冷蔵室冷気であり、この冷蔵庫では上記主流冷気が流れる前記冷気戻り口（パーシャル側）５５と冷気合流戻り口５７との間に冷蔵室温度センサ５９を設けているので、冷蔵室１４の温度を正確に検出することができる。したがって、冷蔵室１４の温度を精度良く設定温度に制御することができる。   The main flow of the cold air in the cold air return passage portion (partial side) 56 flowing from the refrigerator compartment 14 to the cold air merge return port 57 via the chilled chamber 22 is the cold air return port (partial side) 55 and the cold air merge return. It is on the line connecting the mouth 57. This cold air includes chilled room cold air and partial room cold air, most of which is cold room cold air. In this refrigerator, between the cold air return port (partial side) 55 through which the mainstream cold air flows and the cold air merging return port 57 are provided. Since the refrigerator temperature sensor 59 is provided, the temperature of the refrigerator 14 can be accurately detected. Therefore, the temperature of the refrigerator compartment 14 can be accurately controlled to the set temperature.

また、パーシャル室温度センサ６０は前記パーシャル室２１内の冷気戻り通路部（パーシャル側）５６の冷気流れが主流となる冷気戻り口（パーシャル側）５５と冷気合流戻り口５７との線上以外の部分、この例では冷蔵室温度センサ５９とは冷蔵室ダクト２８を挟んで反対側の対角部分に設けてあるので、パーシャル室２１の温度も正確に検出し、精度よく制御することができる。すなわち、上記冷蔵室温度センサ５９と冷蔵室ダクト２８を挟んで反対側の対角部分は冷蔵室冷気が少なくその大部分はパーシャル室２１内の冷気であってこれが漂っている形となっているので、パーシャル室２１内の温度も正確に検出でき、精度の高い温度制御ができるのである。   Further, the partial chamber temperature sensor 60 is a portion other than the line between the cold air return port (partial side) 55 and the cold air merging return port 57 in which the cold air flow in the cold air return passage portion (partial side) 56 in the partial chamber 21 becomes the main flow. In this example, the refrigerating room temperature sensor 59 is provided in the opposite diagonal portion across the refrigerating room duct 28, so that the temperature of the partial chamber 21 can also be accurately detected and accurately controlled. That is, the opposite side of the cold room temperature sensor 59 and the cold room duct 28 has a small amount of cold air in the cold room, and most of the cold air in the partial room 21 drifts. Therefore, the temperature in the partial chamber 21 can also be accurately detected, and highly accurate temperature control can be performed.

一方、チルド室２２は既述した通りパーシャル室２１からの冷輻射を受けて冷蔵室温度よりも低めの温度に冷却されているが、パーシャル室２１の冷却温度を変更するとその影響を受けてチルド室２２の温度が変化しがちである。   On the other hand, as described above, the chilled chamber 22 is cooled to a temperature lower than the refrigeration chamber temperature by receiving the cold radiation from the partial chamber 21. However, if the cooling temperature of the partial chamber 21 is changed, the chilled chamber 22 is affected by the influence. The temperature of the chamber 22 tends to change.

しかしながらこの冷蔵庫では、チルド室温度センサからの出力に基づきチルド室２２底面の温度調節用ヒータ４９をオン／オフさせて設定温度に制御することができ、このチルド室２２の温度制御も精度よく行うことができる。   However, in this refrigerator, the temperature adjusting heater 49 on the bottom surface of the chilled chamber 22 can be turned on / off based on the output from the chilled chamber temperature sensor to control the set temperature, and the temperature control of the chilled chamber 22 is also performed with high accuracy. be able to.

このチルド室２２の温度制御は前記冷蔵室１４やパーシャル室２１と同様にダンパを設けて冷気供給を開閉することによって行うようにすることもできるが、この場合はダンパ設置スペースを必要として大型化し冷蔵室容積を減じてしまう。しかしながらこの実施の形態のようにヒータ方式とすればダンパを設けるためのスペースや通路構成を必要とせず簡単かつ冷蔵室容積を減じることなくチルド室温度の制御が可能となり、効果的である。   The temperature control of the chilled chamber 22 can be performed by providing a damper and opening and closing the cold air supply in the same manner as the refrigerated chamber 14 and the partial chamber 21, but in this case, the damper installation space is required and the size is increased. Reduces refrigerator compartment volume. However, if the heater system is used as in this embodiment, it is possible to easily control the temperature of the chilled chamber without requiring a space or a passage structure for providing a damper, and without reducing the volume of the refrigerator compartment, which is effective.

また、上記冷蔵室温度センサ５９やパーシャル室温度センサ６０は冷蔵室ダクト２８のダクトカバー２８ｂに取付けてあるから、ダクトカバー２８ｂの冷蔵室内への装着によって所定位置に組み込むことができる。したがって、ダクトカバー２８ｂと各センサとを別々に組み込む場合に比べその作業性は大幅に向上し、生産性を高めることができる。   Further, since the refrigeration room temperature sensor 59 and the partial room temperature sensor 60 are attached to the duct cover 28b of the refrigeration room duct 28, the duct cover 28b can be incorporated into a predetermined position by being mounted in the refrigeration room. Therefore, compared with the case where the duct cover 28b and each sensor are incorporated separately, the workability is greatly improved, and the productivity can be increased.

また、上記ダクトカバー２８ｂには脱臭ユニット６１も装着してあるから、この脱臭ユニット６１の組み込みも容易になり、生産性をさらに向上させることができる。そして、上記脱臭ユニット６１を設けていることにより冷蔵室内の食材から移った冷気中の臭気を除去することができ、衛生的な冷蔵庫とすることができる。   Further, since the deodorizing unit 61 is also mounted on the duct cover 28b, the deodorizing unit 61 can be easily assembled, and productivity can be further improved. And by providing the said deodorizing unit 61, the odor in the cold which moved from the foodstuff in a refrigerator compartment can be removed, and it can be set as a sanitary refrigerator.

さらに、前記冷蔵室１４内での冷気戻り通路を構成する冷気戻り口（チルド側）４５、冷気戻り口（パーシャル側）５５と冷気合流戻り口５７とは位置ずれさせて設けているので、冷気戻り口（チルド側）４５或いは冷気戻り口（パーシャル側）５５から冷気戻り口（チルド側）４５を介して食材等の屑が落下するようなことがあっても、これが冷気合流戻り口５７上に落ちてこれを詰まらせたり開口面積を減じたりするのを防止でき、長期間に亘って良好な冷気戻り性能を維持することができる。   Further, the cold air return port (chilled side) 45, the cold air return port (partial side) 55 and the cold air merging return port 57 constituting the cold air return passage in the refrigerator compartment 14 are provided so as to be displaced from each other. Even if debris such as food is dropped from the return port (chilled side) 45 or the cold air return port (partial side) 55 through the cold air return port (chilled side) 45, this is on the cold air merge return port 57. It is possible to prevent the clogging and reduction of the opening area, and to maintain good cold return performance over a long period of time.

最後に冷凍室の冷却及び冷気戻り動作について説明する。   Finally, cooling of the freezing room and cold air returning operation will be described.

冷凍室１８は冷却ファン下流側からの冷気が冷凍室背面板３２の冷気吹出し口６３から供給され冷却される。冷気吹出し口６３のうち最上段左側の冷気吹出し口６３からの冷気は製氷室１６に供給され、最上段右側の冷気吹出し口６３からの冷気は切替室１５に供給され、各室を冷却する。そして、上記冷凍室１８および製氷室１６および切替室１５を冷却した冷気は冷凍室１８の下部に設けた冷凍冷気戻り口６４から冷却室２３へと戻る。   In the freezer compartment 18, cold air from the downstream side of the cooling fan is supplied from the cold air outlet 63 of the freezer compartment back plate 32 and cooled. Of the cool air outlet 63, the cool air from the upper left cool air outlet 63 is supplied to the ice making chamber 16, and the cool air from the upper right cool air outlet 63 is supplied to the switching chamber 15 to cool each chamber. Then, the cold air that has cooled the freezing chamber 18, the ice making chamber 16, and the switching chamber 15 returns to the cooling chamber 23 from a freezing cold air return port 64 provided in the lower portion of the freezing chamber 18.

ここで、この冷蔵庫は、上記冷凍室１８の冷凍冷気戻り口６４に冷凍室ダンパ６８を設けているので、冷凍室１８へ供給される冷気を開閉制御することができ、冷凍室１８が設定温度になっているのにもかかわらず冷蔵室１４温度が高くて圧縮機２７および冷却ファン２５が駆動し冷気が冷凍室１８へ供給されて過度に冷却されるのを防止することができ、良好な冷凍保存を実現することができる。   Here, since this refrigerator is provided with the freezer compartment damper 68 at the freezer cold air return port 64 of the freezer compartment 18, the cold air supplied to the freezer compartment 18 can be controlled to open and close. Although the temperature of the refrigerator compartment 14 is high, the compressor 27 and the cooling fan 25 are driven, and it is possible to prevent the cool air from being supplied to the freezer compartment 18 and being excessively cooled. Frozen storage can be realized.

そしてこの冷蔵庫では、特に上記冷凍室ダンパ６８は冷凍室１８の冷気吹出し口６３側ではなく冷凍室下部の冷凍冷気戻り口６４側に設けてあるので、構成の簡素化を図りつつ安定したダンパ動作を得ることができ、冷凍室１８の温度制御精度を向上させ信頼性を高めることができる。   In this refrigerator, particularly, the freezer compartment damper 68 is provided not on the cold air outlet 63 side of the freezer compartment 18 but on the freezer cold air return port 64 side on the lower part of the freezer compartment, so that a stable damper operation can be achieved while simplifying the configuration. Thus, the temperature control accuracy of the freezer compartment 18 can be improved and the reliability can be improved.

すなわち、冷凍室１８は冷却室２３の前面に隣り合わせに設けられていて、その上部に設けた冷気吹出し口６３が冷却室２３の冷却ファン下流側と連通している。そのため、冷却器２４の除霜運転時、除霜した後の高湿の暖冷気がそのドラフトで冷却室２３を上昇して冷気吹出し口６３まで達する。したがって、この冷気吹出し口６３側に冷凍室ダンパ６８を設けていると、前記高温高湿の暖冷気が冷凍室ダンパ６８に触れて結露し、除霜運転終了後の冷却運転再開時に結氷して動作不良を起こす恐れがある。そのため、この結氷を防止するために冷凍室ダンパ６８に結氷防止専用のヒータを設けなくてはならなく構成が複雑化する。   That is, the freezer compartment 18 is provided adjacent to the front surface of the cooling chamber 23, and the cold air outlet 63 provided in the upper portion thereof communicates with the cooling fan downstream side of the cooling chamber 23. Therefore, during the defrosting operation of the cooler 24, the high-humidity warm air after the defrosting moves up the cooling chamber 23 with the draft and reaches the cold air outlet 63. Therefore, if the freezer compartment damper 68 is provided on the cold air outlet 63 side, the high-temperature and high-humidity warm air is condensed by touching the freezer compartment damper 68, and is frozen when the cooling operation is resumed after the defrosting operation is completed. There is a risk of malfunction. Therefore, in order to prevent this icing, it is necessary to provide the freezer compartment damper 68 with a dedicated heater for preventing icing, which complicates the configuration.

しかしながら、この実施の形態のように、冷凍室ダンパ６８を冷却室下部の冷凍冷気戻り口６４に設けておけば、除霜時に発生する高湿の暖冷気はその大部分がドラフトで冷凍冷気戻り口６４より上方で発生する形となってそのまま上昇するので、冷凍室ダンパ６８に触れる暖冷気はごく少量かつ湿度も少ないものとなってそれが結露して生じる結氷も軽微なものとなる。しかもこの結氷は除霜のためのガラス管ヒータ２６による余熱で防止することができる。したがって、冷凍室ダンパ６８の動作は安定したものとすることができ、しかも除霜用のガラス管ヒータ２６を利用しているので除霜専用のヒータ等を必要とせず構成も簡素なものとすることができる。つまり、温度制御精度を向上させると同時に信頼性を向上させることができるのである。   However, if the freezing compartment damper 68 is provided in the freezing cold air return port 64 at the lower part of the cooling room as in this embodiment, the high-humidity warm air generated during defrosting is mostly drafted and the freezing cold air returns. Since it rises as it is generated above the mouth 64, the warm and cool air that touches the freezer compartment damper 68 is very small and has a low humidity, and the resulting icing is also minimal. Moreover, this icing can be prevented by residual heat from the glass tube heater 26 for defrosting. Accordingly, the operation of the freezer damper 68 can be made stable, and since the glass tube heater 26 for defrosting is used, a heater for exclusive use of defrosting is not required and the configuration is simple. be able to. That is, it is possible to improve temperature control accuracy and at the same time improve reliability.

また、上記冷凍室ダンパ６８は複数のフラップ７１の組み合わせで構成しているので、各複数のフラップ７１が開いたときの前後幅寸法は一枚ダンパで構成した場合に比べ大幅に小さくすることができる。したがって、冷凍室ダンパ６８自体をコンパクト化できると同時に、これを設けるスペースも大幅に縮小して、その分冷凍室１８内の容積を増加させることができる。   Further, since the freezer damper 68 is composed of a combination of a plurality of flaps 71, the front-rear width dimension when each of the plurality of flaps 71 is opened can be made significantly smaller than that of a single damper. it can. Therefore, the freezer damper 68 itself can be made compact, and at the same time, the space in which the freezer damper 68 is provided can be greatly reduced, and the volume in the freezer compartment 18 can be increased accordingly.

加えて、上記冷凍室ダンパ６８の各複数のフラップ７１は冷却室２３側に向かって開くように設けてあるから、この点からも冷凍室１８内の容積を増加させることができる。すなわち、前記各複数のフラップ７１を冷凍室１８側に向かって開くようにすると、前記各複数のフラップ７１が冷凍室１８側に突出する形となってその分冷凍室容器６２を前方に位置させなければならなくなり、冷凍室容器６２の容積、つまり冷凍室１８の容積が少なくせざるを得なくなるが、この実施の形態のようにすればこのようなことは解消でき、冷凍室容積を増加させることができるのである。   In addition, since the plurality of flaps 71 of the freezer compartment damper 68 are provided so as to open toward the cooling chamber 23, the volume in the freezer compartment 18 can be increased from this point. That is, when each of the plurality of flaps 71 is opened toward the freezer compartment 18 side, each of the plurality of flaps 71 protrudes toward the freezer compartment 18 side, and the freezer compartment container 62 is positioned forward accordingly. The volume of the freezer compartment 62, that is, the volume of the freezer compartment 18 must be reduced. However, this embodiment can eliminate this problem and increase the freezer compartment volume. It can be done.

また、冷凍室ダンパ６８を装着した冷凍冷気戻り口６４の冷却室側口枠部６６を垂線に対し上部にいくほど後方、すなわち冷却室２３側に位置するように傾斜させて、当該冷却室側口枠部６６に装着した冷蔵室ダンパ３７の冷却室側が冷凍室側に対し下方に位置する如く傾斜させてあるから、冷却器２４の除霜運転時に冷却室２３内に生じた暖冷気が触れてこれが結露するようなことがあっても、この結露水は冷却室２３側に流下し、排水口３６より外部へ排水される。したがって、上記結露水が冷凍室１８側に流下し、冷凍室１８内で氷結し氷塊となって障害を引き起こすようなことを防止できる。   Further, the cooling chamber side frame 66 of the freezing cold air return port 64 equipped with the freezing chamber damper 68 is inclined so as to be located at the rear side, that is, the cooling chamber 23 side as it goes upward with respect to the vertical line. Since the cooling chamber side of the refrigerator compartment damper 37 attached to the mouth frame portion 66 is inclined so as to be positioned below the freezing chamber side, the warm air generated in the cooling chamber 23 during the defrosting operation of the cooler 24 is touched. Even if this may cause condensation, the condensed water flows down to the cooling chamber 23 side and is drained to the outside through the drain port 36. Therefore, it can be prevented that the condensed water flows down to the freezer compartment 18 side, freezes in the freezer compartment 18 and becomes an ice block and causes a failure.

なお、通常この除霜運転時には冷凍室ダンパ６８を閉じており、冷却室２３内の暖冷気が冷凍室１８内に入り込まないようにしてある。   Normally, during this defrosting operation, the freezer damper 68 is closed so that the warm and cool air in the cooling chamber 23 does not enter the freezing chamber 18.

また、上記冷凍室ダンパ６８は冷却室２３下部のガラス管ヒータ２６と近接しているため除霜運転時に温度上昇することになるが、この冷凍室ダンパ６８を構成するダンパ枠体７０ならびに複数のフラップ７１等は耐熱性の材料で形成してあるから、熱変形等を防止でき、長期間に亘って良好なダンパ作用を確保することができる。   Further, since the freezer compartment damper 68 is close to the glass tube heater 26 below the cooling compartment 23, the temperature rises during the defrosting operation. The damper frame 70 and the plurality of damper frames 70 constituting the freezer compartment damper 68 are also described. Since the flap 71 and the like are formed of a heat resistant material, thermal deformation and the like can be prevented, and a good damper action can be secured over a long period of time.

特にこの実施の形態では、冷凍室ダンパ６８はその下部（ダンパ枠体７０の下辺部分）をガラス管ヒータ２６の真横ではなくそれよりも上方に位置するように設けてあるから、その分ガラス管ヒータ２６から離れる形となって輻射熱線による直接的な熱影響を低減することができ、温度上昇を抑制することができる。その一方でガラス管ヒータ２６により熱せられた湿気の少ない暖冷気は確実に冷凍室ダンパ６８に触れ、冷凍室ダンパ６８に着霜があったとしてもこれを確実に除霜し、ダンパ動作を良好なものとすることができる。   In particular, in this embodiment, the freezer damper 68 is provided such that its lower portion (the lower side portion of the damper frame 70) is positioned not above the glass tube heater 26 but above it. The direct thermal influence by the radiant heat rays can be reduced by separating from the heater 26, and the temperature rise can be suppressed. On the other hand, the warm and cool air with low humidity heated by the glass tube heater 26 reliably touches the freezer compartment damper 68, and even if the freezer compartment damper 68 is frosted, it is reliably defrosted and the damper operation is good. Can be.

加えて更に、上記ガラス管ヒータ２６との距離が短くなる冷凍室ダンパ６８の下部を支持する冷却室側口枠部６６の下辺６６ａは、冷却室２３に突き出す形（冷却室２３の底面２３ａよりガラス管ヒータ２６側に突き出す形）としてあるから、ガラス管ヒータ２６からの輻射熱線が直接冷凍室ダンパ６８のダンパ枠下辺に照射するのを防止でき、極端な温度上昇を防止することができる。しかも、上記冷却室側口枠部６６の下辺６６ａは二重壁としてその間隙部分６６ｂは冷凍室１８に面して開放した形としてあるから、冷凍室１８内の冷気による冷却作用が加わって極端な昇温を防止でき、良好な動作を保証することができる。   In addition, the lower side 66a of the cooling chamber side frame portion 66 that supports the lower portion of the freezer compartment damper 68, which has a shorter distance from the glass tube heater 26, protrudes into the cooling chamber 23 (from the bottom surface 23a of the cooling chamber 23). Therefore, it is possible to prevent radiant heat rays from the glass tube heater 26 from directly irradiating the lower side of the damper frame of the freezer compartment damper 68, thereby preventing an extreme temperature rise. Moreover, since the lower side 66a of the cooling chamber side frame portion 66 is a double wall and the gap portion 66b is open to the freezer compartment 18, the cooling action by the cold air in the freezer compartment 18 is added to the extreme. Temperature rise can be prevented and good operation can be guaranteed.

なお、上記ガラス管ヒータ２６からの輻射熱線の照射による直接的な熱影響は、図３０に示すようにガラス管ヒータ２６上方のヒータカバー３５に遮熱板７７を設ける、或いはヒータカバー３５の冷凍室ダンパ６８側を延長させて遮熱板部とすることによって遮断す
ることができ、更に確実に冷凍室ダンパ６８の温度上昇を抑制することができる。 In addition, the direct thermal influence by irradiation of the radiant heat ray from the glass tube heater 26 is provided with a heat shield plate 77 on the heater cover 35 above the glass tube heater 26 as shown in FIG. It can block | interrupt by extending the chamber damper 68 side and making it a heat-shielding board part, and can suppress the temperature rise of the freezer compartment damper 68 more reliably.

また前記冷凍室ダンパ６８は、図２５に示すように冷凍ダンパ駆動用モータユニット７２がガラス管ヒータ２６のヒータ部２６ａと対向しない位置、この例では冷却室２３横の冷蔵室戻りダクト５８及び野菜室ダクト３０側に設けてあるから、冷凍ダンパ駆動用モータユニット７２に対するガラス管ヒータ２６からの輻射熱線の照射による直接的な熱影響を和らげることができる。これにより、複数の歯車等を内蔵していて精密部品となっている冷凍ダンパ駆動用モータユニット７２も極端な温度上昇を防止でき、安定した動作を保証することができる。   25, the freezer compartment damper 68 is located at a position where the motor unit 72 for driving the freezer damper does not face the heater portion 26a of the glass tube heater 26 as shown in FIG. Since it is provided on the chamber duct 30 side, it is possible to relieve the direct thermal effect of the radiant heat rays from the glass tube heater 26 on the motor unit 72 for driving the refrigeration damper. As a result, the refrigeration damper driving motor unit 72, which includes a plurality of gears and the like and is a precision component, can also prevent an extreme temperature rise and guarantee a stable operation.

そしてこのように冷凍ダンパ駆動用モータユニット７２がヒータ部２６ａの外方に位置する形を維持しつつ、冷凍室ダンパ６８はその冷凍ダンパ駆動用モータユニット７２が冷却室２３横に位置する冷蔵室戻りダクト５８側に位置するようにして設けてあるから、冷気を開閉する複数のフラップ７１部分が冷却器２４の中心線寄り部分に位置するようになり、冷却室２３へ戻る冷気を効率よく冷却器２４に触れさせることができるようになる。これにより、冷却器２４は冷却器自体が持つ本来の冷却性能を十二分に発揮可能となり、冷却性能を大きく向上させることができる。   Thus, while maintaining the shape in which the refrigeration damper driving motor unit 72 is positioned outside the heater portion 26a, the freezing chamber damper 68 is a refrigeration chamber in which the refrigeration damper driving motor unit 72 is positioned beside the cooling chamber 23. Since it is provided so as to be located on the return duct 58 side, the plurality of flaps 71 for opening and closing the cool air are located near the center line of the cooler 24, and cool the cool air returning to the cooling chamber 23 efficiently. The container 24 can be touched. Thereby, the cooler 24 can fully exhibit the original cooling performance of the cooler itself, and can greatly improve the cooling performance.

しかも上記冷凍室ダンパ６８はその上部（ダンパ枠体７０の上片部分）を冷却器２４の下端縁より上方に位置させ、かつ、その下部（ダンパ枠体７０の下辺６６ａ部分）が冷却器２４の下端より下方に位置する如く設けてあるから、冷却室２３へと戻る冷気は確実に冷却器２４の下端面より下方部分に流れるようにすることができる。したがって、冷気はその大部分が冷却器２４の下端面から上方へと流れるようになり、冷却器全体を有効に活用した冷却が可能となって、更にその冷却性能を向上させることができる。   Moreover, the freezer compartment damper 68 has its upper portion (the upper piece portion of the damper frame 70) positioned above the lower end edge of the cooler 24, and its lower portion (the lower side 66a portion of the damper frame 70) is the cooler 24. Therefore, the cool air returning to the cooling chamber 23 can surely flow to a portion below the lower end surface of the cooler 24. Therefore, most of the cold air flows upward from the lower end surface of the cooler 24, and cooling using the entire cooler can be effectively performed, and the cooling performance can be further improved.

また、上記冷凍室ダンパ６８は冷凍室背面板３２に設けた冷却室側口枠部６６に弾着係合させてユニット化してあるから、冷凍室１８への組み込みも冷凍室背面板３２を装着することによって容易に行うことができ、生産性を向上させることができる。   Further, the freezer damper 68 is unitized by elastically engaging with the cooling chamber side frame portion 66 provided on the freezer back plate 32, so that the freezer back plate 32 is also mounted in the freezer compartment 18. By doing so, it can be performed easily and productivity can be improved.

一方、前記冷凍冷気戻り口６４にはその冷凍室ダンパ６８の冷凍室１８側にグリル６７を装着して、その各グリル片６９を冷却室側端部が上方に位置するように傾斜させて設けてあるから、冷凍室容器６２を引き出した時、各グリル片６９の間からその奥に位置するガラス管ヒータ２６等が見えるのを防止でき、使用者に違和感等を与えることをなくすことができる。   On the other hand, a grill 67 is attached to the freezing / cooling air return port 64 on the freezing chamber 18 side of the freezing chamber damper 68, and each grilling piece 69 is inclined so that the end portion on the cooling chamber side is positioned upward. Therefore, when the freezer compartment 62 is pulled out, it is possible to prevent the glass tube heater 26 and the like located behind the grill pieces 69 from being seen, and it is possible to prevent the user from feeling uncomfortable. .

また、上記グリル６７のグリル片６９は下方のグリル片６９ほど前後長が長くなるようにして冷凍室１８内の冷凍室容器６２後面に沿う形としてあるから、冷凍室１８内での冷気の流れをスムーズなものとすることができ、冷却性能を向上させることができる。   Further, the grill piece 69 of the grill 67 has a shape extending along the rear surface of the freezer compartment 62 in the freezer compartment 18 so that the lower grill piece 69 becomes longer in the front-rear direction. Can be made smooth and the cooling performance can be improved.

以上、本発明に係る冷蔵庫について、上記実施の形態を用いて説明したが、本発明は、これに限定されるものではない。すなわち、今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。つまり、本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。   As mentioned above, although the refrigerator concerning this invention was demonstrated using the said embodiment, this invention is not limited to this. That is, the embodiment disclosed this time should be considered as illustrative in all points and not restrictive. That is, the scope of the present invention is shown not by the above description but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

本発明は、冷凍室用ダンパを備える冷蔵庫において、冷却器収納室周辺のスペースを抑制し、庫内容積効率を高めることができるので、家庭用および業務用など様々な種類および大きさの間冷式の冷蔵庫に適用することができる。   The present invention, in a refrigerator including a freezer damper, can suppress the space around the cooler storage chamber and increase the volumetric efficiency of the refrigerator, so that it can be cooled between various types and sizes for home use and business use. It can be applied to a type refrigerator.

１ 冷蔵庫本体
２ 外箱
３ 内箱
４ 発泡断熱材
５、６ 仕切板
７、８、９、１０、１１ 扉
１４ 冷蔵室
１５ 切替室
１６ 製氷室
１７ 野菜室
１７ａ 野菜室容器
１８ 冷凍室
２０ 棚板
２１ パーシャル室（低温室）０
２２ チルド室（低温室）
２２ａ 冷気入口
２３ 冷却室
２３ａ 底面
２４ 冷却器
２５ 冷却ファン
２６ 除霜手段（ガラス管ヒータ）
２６ａ ヒータ部
２７ 圧縮機
２８ 冷蔵室ダクト
２８ａ ダクト部材
２８ｂ ダクトカバー
２８ｂｂ 装着部
２８ｃ 延出リブ
２８ｄ 側面吐出口
２９ 冷凍室ダクト
３０ 野菜室ダクト
３１ 冷却室形成板
３２ 冷凍室背面板
３３ 第１冷気供給口
３４ 第２冷気供給口
３５ ヒータカバー
３６ 排水口
３７ 冷蔵室ダンパ
３８ ダンパ固定枠
３９ 冷蔵室用ダンパ部
４０ パーシャル室用ダンパ部
４１ 冷蔵ダンパ駆動用モータユニット
４３ 天井板
４４ チルド室容器
４５ 冷気戻り口（チルド側）
４６ 冷気戻り通路部（チルド側）
４７ チルド室扉兼把手部
４８ 開口部
４９ 温度調節用ヒータ
５０ 天井板部材
５１ パーシャル室扉
５２ パーシャル室容器
５３ 断熱材
５４ パーシャル冷気通路
５５ 冷気戻り口（パーシャル側）
５６ 冷気戻り通路部（パーシャル側）
５７ 冷気合流戻り口
５８ 冷蔵室戻りダクト
５８ａ、５８ｂ 凹状溝
５９ 冷蔵室温度センサ
６０ パーシャル室温度センサ
６１ 脱臭ユニット
６２ 冷凍室容器
６２ａ 下段容器
６２ｂ 上段容器
６３ 冷気吹出し口
６４ 冷凍冷気戻り口
６５ 冷凍室側口枠部
６６ 冷却室側口枠部
６６ａ 下辺
６６ｂ 間隙部分
６７ グリル
６８ 冷凍室ダンパ
６９ グリル片
７０ ダンパ枠体
７１ フラップ
７２ 冷凍ダンパ駆動用モータユニット
７３ 爪片
７４ 開口
７５ 野菜室ダンパ
７５ａ ダンパ片
７６ 野菜ダンパ駆動用モータユニット
７７ 遮熱板 DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 4 Foam insulation material 5, 6 Partition plate 7, 8, 9, 10, 11 Door 14 Refrigeration room 15 Switching room 16 Ice making room 17 Vegetable room 17a Vegetable room container 18 Freezing room 20 Shelf board 21 Partial room (low temperature room) 0
22 Chilled room (low temperature room)
22a Cold air inlet 23 Cooling chamber 23a Bottom surface 24 Cooler 25 Cooling fan 26 Defrosting means (glass tube heater)
26a heater section 27 compressor 28 refrigerator compartment duct 28a duct member 28b duct cover 28bb mounting section 28c extension rib 28d side outlet 29 freezer compartment duct 30 vegetable compartment duct 31 cooling compartment forming plate 32 freezer compartment rear plate 33 first cold air supply Port 34 Second cold air supply port 35 Heater cover 36 Drain port 37 Refrigeration room damper 38 Damper fixing frame 39 Refrigeration room damper part 40 Partial room damper part 41 Refrigeration damper drive motor unit 43 Ceiling plate 44 Chilled room container 45 Cold air return Mouth (chilled side)
46 Cool air return passage (chilled side)
47 Chilled chamber door / grip 48 Opening 49 Temperature control heater 50 Ceiling plate member 51 Partial chamber door 52 Partial chamber container 53 Thermal insulation material 54 Partial cold air passage 55 Cold air return port (partial side)
56 Cold air return passage (partial side)
57 Cold air confluence return port 58 Refrigerating chamber return ducts 58a, 58b Recessed groove 59 Refrigerating chamber temperature sensor 60 Partial chamber temperature sensor 61 Deodorizing unit 62 Freezer chamber vessel 62a Lower vessel 62b Upper vessel 63 Cold air outlet 64 Freezing cold air return port 65 Freezer chamber Side opening frame portion 66 Cooling chamber side opening frame portion 66a Lower side 66b Gap portion 67 Grill 68 Freezer compartment damper 69 Grill piece 70 Damper frame body 71 Flap 72 Freezing damper drive motor unit 73 Claw piece 74 Opening 75 Vegetable room damper 75a Damper piece 76 Motor unit for driving vegetable damper 77 Heat shield

Claims (6)

冷蔵室と冷凍室と、前記冷凍室の後方に配置され、前記冷蔵室と前記冷凍室とに冷気を供給する冷却器と冷却ファンとが収納された冷却室と、前記冷却室から前記冷蔵室に供給される冷気を制御する冷蔵室ダンパと、前記冷凍室に供給された冷気が前記冷却室に戻される冷凍室冷気戻り通路に設けられた冷凍室ダンパと、を備え、前記冷却室から前記冷凍室に供給される冷気吐出通路にはダンパを備えず、前記冷却室と前記冷凍室とは連通状態に保たれた冷蔵庫。 A refrigerating room, a freezing room, a cooling room disposed behind the freezing room, for supplying a cooler for supplying cold air to the refrigerating room and the freezing room, and a cooling fan; and from the cooling room to the refrigerating room A refrigeration room damper for controlling the cold air supplied to the freezer, and a freezer compartment damper provided in a freezer cold air return passage through which the cold air supplied to the freezer room is returned to the cooling room. A refrigerator in which a cool air discharge passage supplied to the freezer compartment is not provided with a damper, and the cooling chamber and the freezer compartment are kept in communication with each other. 前記冷凍室と前記冷却室とを仕切る仕切板に前記冷凍室ダンパが配置された請求項１に記載の冷蔵庫。 The refrigerator according to claim 1, wherein the freezer damper is arranged on a partition plate that partitions the freezer and the cooling chamber. 前記冷凍室ダンパは、枠体と駆動装置とフラップとを有し、前記フラップは駆動装置により前記冷却室側に回動される請求項１または２に記載の冷蔵庫。 The refrigerator according to claim 1 or 2, wherein the freezer damper includes a frame, a drive device, and a flap, and the flap is rotated toward the cooling chamber by the drive device. 前記冷凍室ダンパは、枠体と駆動装置とフラップとを有し、前記フラップは複数のルーバーを備え、前記駆動装置により開閉される請求項１または２に記載の冷蔵庫。 The refrigerator according to claim 1 or 2, wherein the freezer damper includes a frame, a driving device, and a flap, and the flap includes a plurality of louvers and is opened and closed by the driving device. 前記冷凍室ダンパは、枠体と駆動装置とフラップとを有し、前記枠体およびフラップは垂直面に対して傾斜して配置された請求項１から４のいずれか一項に記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 4, wherein the freezer damper includes a frame, a driving device, and a flap, and the frame and the flap are inclined with respect to a vertical plane. 前記冷蔵室に供給された冷気が前記冷却室に戻される冷蔵室冷気戻り通路を前記冷却器の側部に備え、前記冷凍室ダンパは、枠体と駆動装置とフラップとを有し、前記駆動装置と前記フラップは併設され、正面視で前記駆動装置は前記冷蔵室冷気戻り通路側に配置された請求項１から５のいずれか一項に記載の冷蔵庫。 The refrigerator is provided with a refrigeration chamber cold air return passage through which the cold air supplied to the refrigeration chamber is returned to the cooling chamber, the freezer damper includes a frame, a driving device, and a flap, and the drive The refrigerator according to any one of claims 1 to 5, wherein the apparatus and the flap are provided side by side, and the driving device is disposed on the cold air return passage side in a front view.

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