JPH0468287A - Refrigerator with thawing compartment - Google Patents
Refrigerator with thawing compartmentInfo
- Publication number
- JPH0468287A JPH0468287A JP18007090A JP18007090A JPH0468287A JP H0468287 A JPH0468287 A JP H0468287A JP 18007090 A JP18007090 A JP 18007090A JP 18007090 A JP18007090 A JP 18007090A JP H0468287 A JPH0468287 A JP H0468287A
- Authority
- JP
- Japan
- Prior art keywords
- thawing
- room
- temperature
- lighting
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010257 thawing Methods 0.000 title claims abstract description 143
- 235000013305 food Nutrition 0.000 claims abstract description 39
- 238000007710 freezing Methods 0.000 claims abstract description 10
- 230000008014 freezing Effects 0.000 claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013611 frozen food Nutrition 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は冷凍食品を解凍する解凍室付き冷蔵庫に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerator with a thawing chamber for thawing frozen foods.
従来の技術
従来より冷凍食品の解凍に対して加熱ヒータを用いる例
が知られている。例えば、特公昭４８−２６４１４号公
報に示される例がそれであシ、以下第７図、第８図に従
い説明する。2. Description of the Related Art Conventionally, examples of using a heater to defrost frozen foods have been known. For example, there is an example shown in Japanese Patent Publication No. 48-26414, which will be explained below with reference to FIGS. 7 and 8.
１は解凍箱であり、金属または合成樹脂等で箱状に形成
した外箱２と、前記外箱２の内側に適当な間隙を配して
設けた熱伝導率の良好なアルミ等の金属製の内箱３で構
成されている。４は線状の加熱ヒータであシ、前記解凍
箱１の底面部は疎、上面部は密となるように、アルミ箔
５によって前記内箱３に熱伝導的に密接されている。６
は前記外箱２．アルミ箔５間に介在させた断熱材である
。Reference numeral 1 denotes a thawing box, which includes an outer box 2 formed into a box shape of metal or synthetic resin, and an outer box 2 made of metal such as aluminum with good thermal conductivity and provided with an appropriate gap inside the outer box 2. It consists of an inner box 3. Reference numeral 4 denotes a linear heater, which is brought into close contact with the inner box 3 by means of aluminum foil 5 so that the bottom surface of the thawing box 1 is sparse and the top surface is dense. 6
is the outer box 2. This is a heat insulating material interposed between aluminum foils 5.
かかる構成において、解凍箱１の底面に被解凍食品７を
載置して解凍作用を開始すると、加熱ヒータ４の加熱に
よって内箱３の全周より熱が加えられ、はぼ均一に被解
凍食品７を加熱し、解凍を行わせることが特徴となって
いる。In this configuration, when the food 7 to be thawed is placed on the bottom of the thawing box 1 and the thawing action is started, heat is applied from the entire circumference of the inner box 3 by the heating of the heater 4, and the food to be thawed is almost uniformly heated. 7 is heated and thawed.
発明が解決しようとする課題
しかし、この様な構成では解凍箱１の底面部からは、熱
伝導により被解凍食品７の底面部に熱が伝わシ底面部の
解凍は可能であるものの、解凍箱１の上面及び側面部か
らの被解凍食品７への放射熱の効果は、加熱ヒータ４か
ら内箱３を介しての熱線波長が５μｍ以下の近赤外線域
であるためはとんどなく、解凍箱１内の暖められた空気
の対流による伝熱によってのみ加熱が行われる。このた
め、被解凍食品７の中心部と表面部との解凍むらが大き
くなシやすく又、解凍時間も長くかかるという問題点や
、解凍終了後そのまま食品を放置して置くと、特に魚肉
等の生ものでは雰囲気温度が高いことによる変質が生じ
るため、解凍終了を使用者が監視して処理したシ、また
解凍の出来具合を目視するには冷蔵庫の扉を開けねばな
らず、使い勝手面が悪いという問題点があった。Problem to be Solved by the Invention However, with such a configuration, heat is transmitted from the bottom of the thawing box 1 to the bottom of the food to be thawed 7 by thermal conduction. The effect of radiant heat on the food to be thawed 7 from the top and side surfaces of the food 1 is almost ineffective because the heat ray wavelength from the heater 4 through the inner box 3 is in the near-infrared region of 5 μm or less. Heating takes place only by convective heat transfer of the warmed air inside the box 1. For this reason, there are problems in that the thawing unevenness between the center and surface of the food to be thawed 7 is large, making it easy to thaw, and it takes a long time to defrost. Perishable foods undergo deterioration due to high ambient temperatures, so the user must monitor the completion of defrosting, and the refrigerator door must be opened to visually check the progress of defrosting, which is inconvenient to use. There was a problem.
本発明は上述した問題点を解消するものであシ、解凍の
出来具合を庫外から目視でき、且つ解凍むらが少なく、
短時間で解凍可能な解凍室を特に冷蔵庫の冷凍温度と冷
蔵温度の間の第３の温度帯を有する低温室内に付与する
ことを目的としている。The present invention solves the above-mentioned problems, and allows the progress of thawing to be visually checked from outside the refrigerator, and has less unevenness in thawing.
The object of the present invention is to provide a thawing chamber capable of thawing in a short time, particularly in a low temperature chamber having a third temperature zone between the freezing temperature and the refrigeration temperature of a refrigerator.
課題を解決するための手段
上記課題を解決するために本発明の解凍室付き冷蔵庫は
、前面開口部に開閉自在の透明扉を設けた解凍室を冷凍
温度と冷蔵温度の間の第３の温度帯を有する低温室内に
設置し、その低温室前面開口部には複数のガラス、熱反
射フィルム及び枠体により構成される窓体を前記解凍室
前方の相対向する部位に設置した低温室扉を有し、さら
に前記解凍室内の上部に遠赤外線ヒータとその上面及び
側面をドーム状に覆う反射板、底面に加熱ヒータを密着
させた底面板を設けて被解凍食品を載置した解凍皿を設
置する構成とする。そして、反射板の裏面空間には通風
路を形成して解凍室入口に設けた冷気流入量調節用のダ
ンパーサーモに連通させ、通風路内の透明扉近傍に照明
装置を設は反射板には照明装置と解凍室内を連通ずる孔
と、照明装置と遠赤外線ヒータ間に有するドーム部を直
線状に切り起こした遮へい板と、多数の通風孔を形成す
ると共に、解凍中は遠赤外線ヒータ、加熱ヒータの通電
、冷却用送風機の連続運転制御を行わせ、非解凍時は解
凍室を前記低温室と同じ温度帯に維持させる解凍制御装
置と照明装置を一定時間点灯後消灯させる照明制御装置
とを設けるものである。Means for Solving the Problems In order to solve the above problems, the refrigerator with a thawing chamber of the present invention has a thawing chamber provided with a transparent door that can be opened and closed at the front opening, and the thawing chamber is set at a third temperature between the freezing temperature and the refrigeration temperature. A cold room door is installed in a low temperature room having a belt, and the front opening of the cold room has a window body composed of a plurality of glasses, a heat reflective film, and a frame body installed at opposing positions in front of the thawing chamber. Further, a far-infrared heater is provided in the upper part of the thawing chamber, a reflector plate that covers the top and side surfaces thereof in a dome shape, and a bottom plate with the heater in close contact with the bottom surface, and a thawing tray on which the food to be thawed is placed is installed. The configuration is as follows. Then, a ventilation passage is formed in the space on the back side of the reflector plate to communicate with the damper thermostat for regulating the amount of cool air inflow installed at the entrance of the thawing chamber, and a lighting device is installed near the transparent door in the ventilation passage. A hole that communicates between the lighting device and the thawing chamber, a shielding plate made by cutting the dome section between the lighting device and the far-infrared heater in a straight line, and a large number of ventilation holes are formed, and the far-infrared heater and heating A thawing control device controls energization of a heater and continuous operation of a cooling blower to maintain the thawing chamber in the same temperature range as the cold room when not thawing, and a lighting control device turns off a lighting device after being turned on for a certain period of time. It shall be established.
作 用
本発明は上記した構成によって、被解凍食品の上面及び
側面より遠赤外線ヒータによる遠赤外線の直接放射及び
反射板を介しての間接放射が行われると共に底面の加熱
ヒータからの伝熱加熱がおこなわれて熱吸収される。又
、同時に解凍中は反射板に形成した上面の多数の通風孔
より被解凍食品に対して均等に冷気が供給され食品表面
の温度上昇を抑制する。更に解凍終了後はダンパ、−サ
ーモの温調作用により自動的に食品温度は、解凍室が設
置されている低温室と同一の温度、即ち冷凍温度と冷蔵
温度の間の第３の温度帯に維持されて保冷されるもので
ある。更に解凍の出来具合は、解凍室前方の相対向する
部位に設置された窓体を通して、照明装置の点灯により
解凍室内前方部を照らして冷蔵庫の庫外より目視できる
ものである。Effect of the present invention With the above-described configuration, the far-infrared rays are directly radiated by the far-infrared heater and indirectly radiated through the reflector from the top and side surfaces of the food to be thawed, and conductive heating is performed from the bottom heater. heat is absorbed. At the same time, during thawing, cold air is uniformly supplied to the food to be thawed through the numerous ventilation holes formed on the top surface of the reflector, thereby suppressing the temperature rise on the surface of the food. Furthermore, after thawing is completed, the temperature control action of the damper and thermostat automatically brings the food temperature to the same temperature as the cold room where the thawing chamber is installed, that is, to the third temperature zone between the freezing temperature and the refrigeration temperature. It is maintained and kept cold. Further, the degree of defrosting can be visually checked from outside the refrigerator by lighting up the front part of the defrosting chamber by lighting up a lighting device through window bodies installed at opposing positions in the front of the defrosting chamber.
実施例
以下本発明の一実施例の解凍室付き冷蔵庫について第１
図から第６図に従い説明する。Embodiment 1 Regarding a refrigerator with a defrosting chamber according to an embodiment of the present invention
The explanation will be made according to FIGS. 6 to 6.
８は冷蔵庫本体で外箱９．内箱１ｏ及びこれら両箱９，
１０間に充填された断熱材１１により構成されている。8 is the refrigerator itself and the outer box 9. Inner box 1o and both boxes 9,
It is composed of a heat insulating material 11 filled between 10 and 10.
１２及び１２′は冷蔵庫本体８を上中下の３室に区画す
る第１区画壁及び第２区画壁であり、前記第１区画壁１
２の上部に冷凍室１３゜下部に約−３°Ｃのパーシャル
フリーランプ温度帯を維持する低温室１４及び前記第２
の区画壁１２′の下部に冷蔵室１４′が区画形成されて
いる。１５は前記低温室１４内の上部の一区画に設けた
解凍室である。１６は前記冷蔵庫本体８の低部後方に設
けた冷凍サイクルの圧縮機、１７は前記冷凍室１３の背
面に収めた冷却器である。１８は前記冷却器１７で冷却
された冷気を前記冷凍室１３．低温室１４．冷蔵室１４
′及び解凍室１５内に強制送風させるための送風機、２
ｏは前記低温室１４゜解凍室１５の入口に設けて電気的
入力で冷気流入量を調節するダンパーサーモであシ、そ
の構成全解凍室１６用のダンパーサーモ２ｏを例にとシ
説明すると、２１は電磁コイル、２２は前記電磁コイル
２１の内心部を電磁作用の有無によって上下するプラン
ジャー、２３は前記プランジャー２２に接合されたロッ
ド、２４は冷気通路を開閉するダンパーであシ、前記電
磁コイ／ｖ２１への通電時に電磁作用で前記ロッド２３
が押し上げられて前記ダンパー２４が開放され、通電が
断たれると前記ロッド２３は下方に降下して前記ダンパ
ー２４が閉成するように構成されている。尚、図示しな
いが後の説明の便宜上、同一構成の低温室１４用のダン
パーサーモ１９の電磁コイルを２１′、ダンパーを２４
′とする。２５，２６．２６’は前記送風機１８からの
冷気を前記低温室１４．解凍室１５．冷蔵室１４′に導
く吐出ダクト、２７゜２８は夫々前記低温室１４．解凍
室１５内を冷却した冷気を前記冷却器１７に戻すための
吸入ダクトである。又、２９，３０．３１は夫々前記冷
凍室１３．低温室１４．解凍室１６内の温度を検知する
温度検知器である。更に前記冷蔵室１４′の入口には機
械式のダンパーサーモ３０’が設置され、その温度検知
器３１′が室温を検知して所定の冷蔵温度となるように
冷気流入量を調節している。又、冷蔵室１４′を冷却し
た冷気は前記吸入ダクト２７より前記低温室１４の戻シ
冷気と一緒に前記冷却器１７へと戻って行く。Reference numerals 12 and 12' denote a first partition wall and a second partition wall that partition the refrigerator main body 8 into three compartments, upper, middle, and lower, and the first partition wall 1
2, a freezing chamber 13° in the upper part, a cold room 14 maintaining a partial free lamp temperature zone of about -3°C in the lower part, and the second
A refrigerating chamber 14' is defined at the lower part of the partition wall 12'. Reference numeral 15 denotes a thawing chamber provided in an upper section of the low temperature chamber 14. 16 is a compressor of a refrigeration cycle provided at the rear of the lower part of the refrigerator main body 8, and 17 is a cooler housed in the back of the freezer compartment 13. 18 transfers the cold air cooled by the cooler 17 to the freezer compartment 13. Cold room 14. Refrigerator room 14
' and a blower for forcing air into the thawing chamber 15, 2
o is a damper thermometer installed at the entrance of the cold room 14° thawing chamber 15 to adjust the amount of cold air inflow by electrical input. Taking the damper thermo 2o for all the thawing chambers 16 as an example, it will be explained as follows. 21 is an electromagnetic coil; 22 is a plunger that moves the inner core of the electromagnetic coil 21 up and down depending on the presence or absence of electromagnetic action; 23 is a rod connected to the plunger 22; 24 is a damper that opens and closes the cold air passage; When the electromagnetic coil/v21 is energized, the rod 23 is
is pushed up to open the damper 24, and when the current is cut off, the rod 23 falls downward and the damper 24 is closed. Although not shown, for convenience of later explanation, the electromagnetic coil of the damper thermostat 19 for the low temperature chamber 14 having the same configuration is 21', and the damper is 24.
'. 25, 26, and 26' supply cold air from the blower 18 to the cold room 14. Thawing chamber 15. Discharge ducts 27 and 28 lead to the cold room 14', respectively. This is a suction duct for returning the cold air that has cooled the inside of the thawing chamber 15 to the cooler 17. Further, 29, 30, and 31 are respectively the freezer compartments 13. Cold room 14. This is a temperature detector that detects the temperature inside the thawing chamber 16. Further, a mechanical damper thermometer 30' is installed at the entrance of the refrigerating chamber 14', and its temperature sensor 31' detects the room temperature and adjusts the amount of cold air flowing in so that a predetermined refrigerating temperature is reached. The cold air that has cooled the refrigerator compartment 14' returns to the cooler 17 through the suction duct 27 together with the cold air returned from the low temperature room 14.
次に前記解凍室１６の詳細構成について説明する。３２
は合成樹脂製の外箱、３３は前記外箱３２の内面に設置
して外周を囲む断熱材である。Next, the detailed configuration of the thawing chamber 16 will be explained. 32
33 is a heat insulating material installed on the inner surface of the outer box 32 and surrounding the outer periphery thereof.
３４は前記解凍室１５内の上部に設けた遠赤外線ヒータ
であシ、ヒータ＠ＳｔＳを封入したガラス管３６の表面
に珪素等を主成分とするセラミック塗料層３７を焼き付
は塗装し約６μｍ以上の遠赤外線を有効に放射するよう
に構成されている。該遠赤外線ヒータ３４は耐熱製の高
い合成樹脂製のホルダー３８を介してドーム状に形成し
たアルミニウム等の金属製の反射板３９により垂下支持
されている。34 is a far-infrared heater installed in the upper part of the thawing chamber 15. A ceramic paint layer 37 mainly composed of silicon or the like is baked on the surface of the glass tube 36 in which the heater @StS is sealed, and the thickness is about 6 μm. The device is configured to effectively radiate far-infrared rays as described above. The far-infrared heater 34 is suspended and supported by a dome-shaped reflector plate 39 made of metal such as aluminum through a holder 38 made of a highly heat-resistant synthetic resin.
また前記反射板３９は解凍室１５内の両側壁。The reflecting plates 39 are on both side walls of the thawing chamber 15.
奥壁を構成する内箱部分を一体に形成したものとしてお
シ、更に天面ドーム部両側の平面部には多数の通風孔３
９ａを形成している。４０は照明装置でアシ、ソケット
４０ ａ及びランプ４ｏｂより構成され、前記外箱３２
前方部に設置され、前記反射板３９の裏面前方に位置し
ている。The inner box part that makes up the back wall is integrally formed, and there are many ventilation holes 3 in the flat part on both sides of the top dome part.
9a is formed. Reference numeral 40 denotes a lighting device, which is composed of a reed, a socket 40a, and a lamp 4ob, and is attached to the outer box 32.
It is installed in the front part and located in front of the back surface of the reflecting plate 39.
前記反射板３９には、前記照明装置４ｏと解凍室１５内
を連通ずる前記照明装置４０と同等以上に開孔された孔
３９ｂと、前記照明装置４ｏと前記遠赤外線ヒータ３４
間に有するドーム部を直線状に切！ｌｌ起こして設けら
れた遮へい板３９ｃを形成している。次に４１はアルミ
ニウム等金属製の底面板であり、その裏面に線状の加熱
ヒータ４２がアルミ箔４３等により熱伝導的に密着固定
されている。４４は前記底面板４１上に着脱自在に設置
される解凍皿であシ、被解凍食品４５を載置するアルミ
ニウム等金属製の皿４θと外周を囲む枠体４７により構
成されている。４８は前記反射板３９の下方に一定の間
隔をおいて固定設置した火傷防止用の防護網であシ、４
９は解凍室１５の前面開口部を開閉する透明プラスチッ
ク等で形成した扉である。また、６０は前記反射板３９
の裏面空間に形成した通風路であシ、吐出口５１を介し
て前記ダンパーサーモ２ｏに連通している。５２は解凍
室１６内の実装に形成した吸入口であシ前記吸入ダクト
２８に連通している。５３及び５３′は夫々前記冷蔵庫
本体８の外郭前面に設けた解凍スイッチ及び照明スイッ
チである。前記低温室１４の前面開口部には、外板５４
．内板６５及び両板間に充填された断熱材５６よ多構成
され、前記解凍室１５の前方の相対向する部位に窓体５
７を設置した低温室扉５８が位置している。前記窓体５
７はほぼ透明な複数のガラス６８′、熱反射フィルム５
９及び枠体６０よ多構成され、前記ガラス５８′及び熱
反射フィルム５９により空気層６１が形成されておυ、
この空気層６１により断熱性を確保すると同時に、熱反
射フィルム５９により熱線の低温室１４内への侵入を防
止している。The reflector plate 39 has a hole 39b opened to a size equal to or larger than the illumination device 40, which communicates the illumination device 4o with the inside of the thawing chamber 15, and a hole 39b opened to communicate between the illumination device 4o and the inside of the thawing chamber 15.
Cut the dome part in between into a straight line! It forms a shielding plate 39c which is raised up. Next, reference numeral 41 denotes a bottom plate made of metal such as aluminum, and a linear heater 42 is tightly fixed to the back surface of the bottom plate with aluminum foil 43 or the like for heat conduction. A thawing tray 44 is detachably installed on the bottom plate 41, and is composed of a tray 4θ made of metal such as aluminum on which the food to be thawed 45 is placed, and a frame 47 surrounding the outer periphery. 48 is a protective net for preventing burns which is fixedly installed below the reflecting plate 39 at a certain interval;
Reference numeral 9 denotes a door made of transparent plastic or the like that opens and closes the front opening of the thawing chamber 15. Further, 60 is the reflection plate 39
A ventilation passage formed in the back space of the damper thermostat 2o communicates with the damper thermostat 2o via a discharge port 51. Reference numeral 52 denotes a suction port formed in a mounting inside the thawing chamber 16 and communicates with the suction duct 28 . Reference numerals 53 and 53' denote a defrost switch and a light switch provided on the front surface of the refrigerator body 8, respectively. At the front opening of the cold room 14, an outer panel 54 is provided.
．． The inner plate 65 and the heat insulating material 56 filled between both plates are composed of a plurality of inner plates 65 and a window body 5 at the front facing part of the defrosting chamber 15.
7 is located. The window body 5
7 is a plurality of almost transparent glasses 68', a heat reflective film 5
9 and a frame 60, an air layer 61 is formed by the glass 58' and the heat reflective film 59,
This air layer 61 ensures heat insulation, and at the same time, the heat reflective film 59 prevents heat rays from entering the cold room 14.
次に電気回路及び制御回路について説明する。Next, the electric circuit and control circuit will be explained.
圧縮機１６はリレー接点６２を介して、送風機１８はリ
レー接点、６３を介して電源に接続されている。The compressor 16 is connected to a power source via a relay contact 62, and the blower 18 is connected to a power source via a relay contact 63.
また、解凍室用ダンパーサーモの電磁コイル２１゜低温
室用のダンパーサーモの電磁コイル２１′は夫々リレー
接点６４．６５を介して電源に接続されでいる。また解
凍室１６の遠赤外線ヒータ３４及び加熱ヒータ４２はと
もにリレー接点６６′を介して電源に接続されている。Further, the electromagnetic coil 21 of the damper thermometer for the thawing chamber and the electromagnetic coil 21' of the damper thermometer for the low temperature chamber are connected to the power source through relay contacts 64 and 65, respectively. Further, both the far-infrared heater 34 and the heating heater 42 in the thawing chamber 16 are connected to a power source via a relay contact 66'.
６６は冷凍室温度制御装置で、サーミスタ等の温度検知
器２９．抵抗Ｒ１＝Ｒ２，Ｒ３’コンパレータ６７を備
えた比較回路、トランジスタ６８゜リレーコイル６９を
備えており、前記コンパレータ６７の出力は前記トラン
ジスタ６８のベースに接続されている。また、トランジ
スタ６８のコレクタには前記リレー接点６２を開閉させ
る吸引用の前記リレーコイル６９が接続されている。７
゜は低温室温度制御装置で、サーミスタ等の温度検知器
３０．抵抗Ｒ４，Ｒ６，Ｒ６、コンパレータ７１を備え
た比較回路、トランジスタ７２．リレーコイル７３を備
えておシ、前記コンパレータ７１の出力は前記トランジ
スタ７２０ペースに接続されている。また、トランジス
タ７２のコレクタには前記リレー接点６５を開閉させる
吸引用の前記リレーコイル７３が接続されている。７４
は解凍室温度制御装置で、サーミスタ等の温度検知器３
１゜抵抗Ｒ７，Ｒ８，Ｒ９、コンパレータ７５を備えた
比較回路、トランジスタ７６、リレーコイル７７を備え
ておシ、通常は前記解凍室１５の室温が約３°Ｃのパー
シャルフリーラング温度に温調されるよう抵抗構成され
、前記コンパレータ７５の出カバ前記トランジヌタ７６
０ベースに接続されている。また、前記トランジスタ７
６のコレクタには前記リレー接点６４を開閉させる吸引
用の前記リレーコイル７７が接続されている。更に、７
８は解凍制御装置で、前記解凍スイッチ５３．タイマー
７９．ＯＲ回路８０．トランジスタ８１，８３゜リレー
コイル８２．８４を備えておシ、前記解凍スイッチ５３
の出力は前記タイマー７９の入力に接続されておシ、前
記タイマー７９の出力は前記トランジスタ８１のベース
及び前記ＯＲ回路８゜の一方の入力に接続されている。66 is a freezing room temperature control device, which includes a temperature sensor 29 such as a thermistor. The comparator circuit includes a resistor R1=R2, R3' comparator 67, a transistor 68° relay coil 69, and the output of the comparator 67 is connected to the base of the transistor 68. Further, the collector of the transistor 68 is connected to the relay coil 69 for attraction, which opens and closes the relay contact 62 . 7
゜ is a cold room temperature control device, which includes a temperature sensor such as a thermistor 30. A comparison circuit including resistors R4, R6, R6, a comparator 71, and a transistor 72. A relay coil 73 is provided, and the output of the comparator 71 is connected to the transistor 720. Further, the collector of the transistor 72 is connected to the relay coil 73 for attraction, which opens and closes the relay contact 65 . 74
is a thawing chamber temperature control device, and a temperature sensor such as a thermistor 3
It is equipped with a comparator circuit including 1° resistors R7, R8, and R9, a comparator 75, a transistor 76, and a relay coil 77, and normally controls the room temperature of the thawing chamber 15 to a partial free run temperature of about 3°C. A resistor is configured so that the output of the comparator 75 is connected to the transistor 76.
Connected to 0 base. Further, the transistor 7
The relay coil 77 for suction, which opens and closes the relay contact 64, is connected to the collector 6. Furthermore, 7
8 is a defrosting control device, which controls the defrosting switch 53. Timer 79. OR circuit 80. The defrost switch 53 is equipped with transistors 81, 83 and relay coils 82 and 84.
The output of the timer 79 is connected to the input of the timer 79, and the output of the timer 79 is connected to the base of the transistor 81 and one input of the OR circuit 8.
また、前記トランジスタ８１のコレクタにはリレー接点
６５′を開閉させる吸引用の前記リレーコイル８２が接
続されている。一方、前記ＯＲ回路８ｏのもう一方の入
力には前記冷凍室温度制御装置６６のコンパレータ６７
の出力が接続され、前記ＯＲ回路８０の出力は前記トラ
ンジスタ８３０ベースに接続されている。また、前記ト
ランジスタ８３のコレクタには前記リレー接点６３を開
閉させる吸引用のリレーコイル８４が接続されている。Further, the collector of the transistor 81 is connected to the relay coil 82 for attraction, which opens and closes the relay contact 65'. On the other hand, the other input of the OR circuit 8o is connected to a comparator 67 of the freezer compartment temperature control device 66.
The output of the OR circuit 80 is connected to the base of the transistor 830. Further, an attraction relay coil 84 for opening and closing the relay contact 63 is connected to the collector of the transistor 83.
尚ここで、前記タイマー７９は入力に一旦「ＨＩＧＨＪ
（以後単にｒＨＪと呼ぶ）の信号が入ると、所定時間ｒ
ＨＪ信号を出力し続け、その後、［ｔｏｗＪ（以後単に
ｒＬＪと呼ぶ）の信号に切替わるよう構成されている。At this point, the timer 79 temporarily sets the input to "HIGHJ".
(hereinafter simply referred to as rHJ), a predetermined period of time r
It is configured to continue outputting the HJ signal and then switch to the [towJ (hereinafter simply referred to as rLJ) signal.
８６は照明制御装置であシ、照明スイッチ６３′及び照
明装置４０ａと直列に接続されておシ、照明スイッチ５
３′がＯＮすると一定時間（例えば３０秒間）、照明装
置４０ａに通電した後、ＯＦＦするように構成されてい
る。Reference numeral 86 denotes a lighting control device, which is connected in series with the lighting switch 63' and the lighting device 40a.
When 3' is turned on, the lighting device 40a is energized for a certain period of time (for example, 30 seconds) and then turned off.
かかる構成において、冷凍室１３の温度が所定値より高
い場合は、温度検知器２９の抵抗値が小さくなっておシ
コンパレータ６７の出力が「Ｈ」となるためトランジス
タ６８がＯＮＬ、てリレーコイル６９が導通する。In this configuration, when the temperature of the freezer compartment 13 is higher than a predetermined value, the resistance value of the temperature detector 29 becomes small and the output of the comparator 67 becomes "H", so the transistor 68 turns ONL, and the relay coil 69 conducts.
このためリレー接点６２が閉成して圧縮機１６が運転さ
れる。また、これと同時にＯＲ回路８゜の出力もｒＨＪ
となっているためトランジスタ８３がＯＮしてリレーコ
イル８４が導通する。このため、リレー接点６３が閉成
して送風機１８も運転され冷凍室１３．低温室１４．冷
蔵室１４′及び解凍室１５へ冷気を強制通風して冷却を
行う。Therefore, the relay contact 62 is closed and the compressor 16 is operated. At the same time, the output of the OR circuit 8° is also rHJ.
Therefore, the transistor 83 is turned on and the relay coil 84 becomes conductive. Therefore, the relay contact 63 is closed and the blower 18 is also operated, causing the freezer compartment 13. Cold room 14. Cooling is performed by forcing cold air into the refrigerator compartment 14' and the thawing compartment 15.
その後、冷凍室１３が所定温度にまで冷却されれば温度
検知器２９の抵抗値が大きくなシコンパレータ６７の出
力がｒＬＪとなる。このため、トランジスタ６８はＯＦ
Ｆ Ｌ、また、ＯＲ回路８ｏの出力もｒＬＪとなるため
トランジスタ８３もＯＦＦしてリレーコイル６９．８４
への通電が断たれる。Thereafter, when the freezer compartment 13 is cooled to a predetermined temperature, the output of the comparator 67 of the temperature detector 29, which has a large resistance value, becomes rLJ. Therefore, the transistor 68 is OF
F L, and since the output of the OR circuit 8o also becomes rLJ, the transistor 83 is also turned off and the relay coil 69.84
Power is cut off.
このため、リレー接点６２．６３はいずれも開放し圧縮
機１６．送風機１８が停止する。以後この作用を繰シ返
して冷凍室１３内は所定温度（例えば−２０°Ｃ）Ｋ温
調維持される。Therefore, both relay contacts 62 and 63 are opened and the compressor 16. The blower 18 stops. Thereafter, this action is repeated to maintain the temperature inside the freezer compartment 13 at a predetermined temperature (for example, -20°C).
次に低温室１４の温度が所定値より高い場合は、温度検
知器３ｏの抵抗値が小さくなっており、コンパレータ７
１の出力がｒＨＪとなるためトランジスタ７２がＯＮ’
ｌ、てリレーコイル７３が導通する。このため、リレー
接点６６が閉成して電磁コイル２１′に通電されてダン
パーサーモ１９のダンパー２４′が開放されて低温室１
４内へ冷気が導入されて冷却作用を行う。その後、低温
室１４が所定温度にまで冷却されれば温度検知器３ｏの
抵抗値が大きくなってコンパレータ７１の出力がｒＬＪ
となる。このため、トランジスタ７２はＯＦＦしてリレ
ーコイル７３への通電が断たれてリレー接点６５が開放
し、電磁コイル２１′への通電も断たれる。そしてダン
パーサーモ１９のダンパー２４′が閉成されて低温室１
４内への冷気の流入が阻止される。以後、この作用を繰
シ返して低温室１４内は冷凍温度と冷蔵温度の間の第３
の温度帯、即ち約−３°Ｃのパーシャルフリーラング温
度帯に温調維持される。Next, when the temperature of the cold room 14 is higher than a predetermined value, the resistance value of the temperature detector 3o is small, and the comparator 7
Since the output of 1 becomes rHJ, the transistor 72 is turned on'
1, the relay coil 73 becomes conductive. Therefore, the relay contact 66 is closed, the electromagnetic coil 21' is energized, the damper 24' of the damper thermostat 19 is opened, and the cold room 1
Cold air is introduced into 4 to perform a cooling effect. Thereafter, when the cold room 14 is cooled down to a predetermined temperature, the resistance value of the temperature sensor 3o increases and the output of the comparator 71 becomes rLJ.
becomes. Therefore, the transistor 72 is turned off, the power supply to the relay coil 73 is cut off, the relay contact 65 is opened, and the power supply to the electromagnetic coil 21' is also cut off. Then, the damper 24' of the damper thermo 19 is closed and the cold room 1
The inflow of cold air into the interior of 4 is prevented. Thereafter, this action is repeated until the inside of the cold room 14 reaches the third temperature between the freezing temperature and the refrigeration temperature.
temperature range, that is, a partial free range temperature range of approximately -3°C.
また、非解凍時において解凍室１５の温度が所定値より
高い場合は、温度検知器３１の抵抗値が小すくなってお
シ、コンパレータ７５の出力がｒＨＪとなるためトラン
ジスタ７６がＯＮしてリレーコイル７７が導通する。こ
のため、リレー接点６４が閉成して電磁コイ１ｖ２１に
通電されてダンパーサーモ２ｏのダンパー２４が開放さ
れて解凍室１５内へ冷気が導入されて冷却作用を行なう
。In addition, when the temperature of the thawing chamber 15 is higher than a predetermined value when not defrosting, the resistance value of the temperature detector 31 becomes small and the output of the comparator 75 becomes rHJ, so the transistor 76 turns on and the relay Coil 77 becomes conductive. Therefore, the relay contact 64 is closed, the electromagnetic coil 1v21 is energized, the damper 24 of the damper thermostat 2o is opened, and cold air is introduced into the thawing chamber 15 to perform a cooling action.
その後、解凍室１５内が所定温度にまで冷却されれば温
度検知器３ｏの抵抗値が大きくなってコンパレータ７６
の出力がｒＬＪとなる。このため、トランジスタ７６は
ＯＦＦしてリレーコイル７７への通電が断たれてリレー
接点６４が開放し、電磁コイＩｖ２１への通電も断たれ
る。そしてダンパーサーモ２ｏのダンパー２４が閉成さ
れて解凍室１５内への冷気の流入が阻止される。以後、
この作用を繰シ返して解凍室１５内は前記低温室１４と
同じ約−３℃のパーシャルフリーラング温度帯に温調維
持される。Thereafter, when the inside of the thawing chamber 15 is cooled to a predetermined temperature, the resistance value of the temperature detector 3o becomes large and the comparator 76
The output of is rLJ. Therefore, the transistor 76 is turned off, the power supply to the relay coil 77 is cut off, the relay contact 64 is opened, and the power supply to the electromagnetic coil Iv21 is also cut off. The damper 24 of the damper thermostat 2o is then closed to prevent cold air from flowing into the thawing chamber 15. From then on,
By repeating this action, the temperature inside the thawing chamber 15 is maintained in the same partial free range temperature range of approximately -3° C. as the low temperature chamber 14.
次に解凍時の作用について述べる。先ず、解凍しようと
する被解凍食品４６を解凍皿４４上に載置して解凍室１
６内の底面板４１上に設置したうえで解凍スイッチ６３
を投入する。投入と同時にタイマー７９がｒＨＪ信号の
出力を開始しトランジスタ８１がＯＮしてリレーコイ）
ｖ８２が導通しリレー接点６６′が閉成する。そして遠
赤外線ヒタ３４．底面の加熱ヒータ４２に通電が開始さ
れ、被解凍食品４６に対して上面からは遠赤外線ヒータ
３４からの放射熱が反射板３９の反射作用とも相まって
均等に行われ、底面からは加熱ヒータ４２による熱伝導
加熱が同時に行われる。ここで、遠赤外線ヒータ３４の
加熱においては、６μｍ以上の長波長の遠赤外線が被解
凍食品４６に対して放射されるため、遠赤外線波長域に
吸収域を持つ一般的な食品類では効率よく遠赤外線が吸
収され、被解凍食品４６の比較的内部にまで浸透して表
面部と中心部との温度むらが大きくならない状態で解凍
が進行する。また、加熱ヒータ４２による加熱において
は、遠赤外線ヒータ３４で十分に加熱しきれない被解凍
食品４６の底面部を解凍皿４４を介しての熱伝導加熱で
解凍することができる。Next, we will discuss the action during thawing. First, the food to be thawed 46 to be thawed is placed on the thawing tray 44 and placed in the thawing chamber 1.
The defrost switch 63 is installed on the bottom plate 41 inside the 6
Insert. At the same time as the power is turned on, the timer 79 starts outputting the rHJ signal, turning on the transistor 81 and relay coil)
v82 becomes conductive and relay contact 66' closes. And far infrared heat 34. Electricity is started to be applied to the heater 42 on the bottom, and radiant heat from the far infrared heater 34 is applied evenly to the food to be thawed 46 from the top, coupled with the reflection action of the reflector 39, and from the bottom, the food is radiated evenly by the heater 42. Conduction heating takes place at the same time. Here, in heating by the far infrared heater 34, far infrared rays with a long wavelength of 6 μm or more are radiated to the food to be thawed 46, so that it is effective for general foods that have an absorption range in the far infrared wavelength range. The far infrared rays are absorbed and penetrate relatively deep into the food to be thawed 46, so that thawing proceeds without increasing temperature unevenness between the surface and the center. Furthermore, in heating by the heater 42, the bottom surface of the food 46 to be thawed, which cannot be sufficiently heated by the far-infrared heater 34, can be thawed by thermal conduction heating via the thawing plate 44.
一方、これら遠赤外線ヒータ３４．加熱ヒータ４２によ
る加熱作用と同時に解凍中、即ちタイマ−７９の出力が
ｒＨＪを発生し続ける間はＯＲ回路８ｏの出力もｒＨＪ
となるためトランジスタ８３がＯＮし、リレーコイル８
４が導通してリレー接点６３が閉成する。このため冷凍
室温度制御装置６６の出力如何に係わらず、送風機１８
が強制的に運転される。ここで、解凍中は解凍室１６内
の温度が遠赤外線ヒータ３４．加熱ヒータ４２の加熱作
用によって徐々に上昇していくため解凍室１６内に設け
た温度検知器３１の検知温度も上昇して解凍室温度制御
装置７４のコンパレータ７５の出力がｒＨＪどなる。On the other hand, these far infrared heaters 34. Simultaneously with the heating effect of the heater 42, during defrosting, that is, while the output of the timer 79 continues to generate rHJ, the output of the OR circuit 8o also reaches rHJ.
Therefore, the transistor 83 turns on, and the relay coil 8
4 becomes conductive and the relay contact 63 is closed. Therefore, regardless of the output of the freezer compartment temperature control device 66, the blower 18
is forced to operate. During thawing, the temperature inside the thawing chamber 16 is controlled by the far infrared heater 34. Since the temperature gradually rises due to the heating action of the heater 42, the temperature detected by the temperature detector 31 provided in the thawing chamber 16 also rises, and the output of the comparator 75 of the thawing chamber temperature control device 74 becomes rHJ.
このためトランジスタ７６がＯＮしてリレーコイＡ／７
７に通電され、リレー接点６４が閉成しダンパーサーモ
２ｏの電磁コイ／ｌ／ ２１に通電される。Therefore, transistor 76 turns on and relay coil A/7
7 is energized, the relay contact 64 is closed, and the electromagnetic coil /l/ 21 of the damper thermostat 2o is energized.
そしてダンパー２４が開放されて送風機１８で強制送風
された冷気が吐出ダクト２６を介して吐出口５１より解
凍室１６内上部の通風路６０内に流入する。通風路６ｏ
内に流入した冷気は反射板３９に形成した多数の通風孔
３９ａ及び照明装置４ｏと同等以上に開孔された孔３ｓ
ｂより下方へ吐出され、被解凍食品４５の表面を均等に
冷却する。この作用によって、被解凍食品４６は主とし
て遠赤外線ヒータ３４の遠赤外線放射効果で比較的内部
加熱に近い形で進行しながら、表面部の温度上昇が抑制
されることになシ結果として、中心部との温度差の小さ
い解凍むらの少ない解凍が実現できる。また、解凍時間
についても遠赤外線の内部浸透効果により従来の加熱ヒ
ータ類に比べ短時間の解凍が可能になるほか、反射板３
９が通風路５ｏ内に露出しているため本来相当な高温と
なる反射板３９自体及び照明装置４０等の周辺部材の温
度が冷却されて低下し安全上も好都合となる。Then, the damper 24 is opened, and the cold air forcedly blown by the blower 18 flows through the discharge duct 26 from the discharge port 51 into the ventilation passage 60 in the upper part of the thawing chamber 16. ventilation duct 6o
The cold air flowing into the interior is passed through a large number of ventilation holes 39a formed in the reflection plate 39 and holes 3s that are opened to a size equal to or larger than that of the lighting device 4o.
It is discharged downward from b and uniformly cools the surface of the food 45 to be thawed. As a result of this action, the food to be thawed 46 progresses in a manner relatively close to internal heating mainly due to the far-infrared radiation effect of the far-infrared heater 34, while the temperature rise at the surface is suppressed. It is possible to achieve thawing with a small temperature difference and less uneven thawing. In addition, due to the internal penetration effect of far infrared rays, it is possible to defrost in a shorter time than with conventional heaters.
9 is exposed in the ventilation path 5o, the temperature of the reflecting plate 39 itself and surrounding members such as the lighting device 40, which are originally quite high temperature, is cooled and lowered, which is convenient from a safety standpoint.
また、照明装置４０と遠赤外線ヒータ３４間に有するド
ーム部を直線状に切り起こして遮へい板３９ｃを設けて
いるため照明装置４ｏの熱変形がない。尚、解凍室１６
内に流入した冷気は冷却作用後、奥面に開口した吸入口
６２より吸入ダクト２８を介して冷却器１７の方に回収
される。Further, since the dome portion between the lighting device 40 and the far-infrared heater 34 is cut and raised in a straight line to provide the shielding plate 39c, there is no thermal deformation of the lighting device 4o. In addition, thawing chamber 16
After cooling, the cold air that has flowed into the cooler is collected into the cooler 17 through the suction duct 28 from the suction port 62 opened at the rear surface.
このような解凍作用が進行してタイマー７９が所定時間
をカウントするとタイマー７９の出力がｒＬＪとなりト
ランジスタ８１がＯＦＦしてリレーコイ／Ｉ／８２への
通電が断たれる。そしてリレー接点８６が開放して遠赤
外線ヒータ３４．加熱ヒー′ｐ４２への通電が断たれて
解凍作用が終了する。When such a defrosting action progresses and the timer 79 counts a predetermined time, the output of the timer 79 becomes rLJ, the transistor 81 is turned off, and the power to the relay coil/I/82 is cut off. Then, the relay contact 86 opens and the far infrared heater 34. The power supply to the heating heater 'p42 is cut off, and the defrosting action is completed.
これと同時にＯＲ回路８０の一方の入力がｒＬＪとなる
ため送風機１８の強制送風状態は解除される。そして解
凍終了後は通常冷却時と同様に温度検知器３１の検知温
度に基づき、解凍室１５内は温度制御される。このため
、解凍後の被解凍食品４５は約−３℃のパーシャルフリ
ーラング温度帯に安定するよう直ちに冷却されることに
なシ、余熱で更に温度上昇することがない。そして、解
凍終了後そのまま放置しておいても魚、肉類等束もの保
存に適した約−３℃のパーシャルフリーラング温度帯で
保冷されているため従来のように使用者が解凍の終了を
監視して即座に処理する間もなく安心して解凍が行なえ
、また解凍終了後、任意の時間に被解凍食品４６を利用
出来ることになり極めて使い勝手が良い。また、解凍室
１６は低温室１４内に設置されておシ、通常時は画室と
もに約−３１Ｓのバーシャルフリーラング温度帯に維持
されるので、解凍室１６内の温調は低温室１４から熱影
響を受けることも無く、正確である。さらに解凍室１５
内は照明スイッチ５３′をＯＮすることにより一定時間
照明装置が点灯するので低温室扉６ｏの窓体５７を通し
て庫外より目視できる。At the same time, one input of the OR circuit 80 becomes rLJ, so the forced air blowing state of the blower 18 is released. After thawing is completed, the temperature inside the thawing chamber 15 is controlled based on the temperature detected by the temperature sensor 31, as in the case of normal cooling. Therefore, the food to be thawed 45 after thawing is immediately cooled to stabilize in the partial free range temperature range of about -3° C., and the temperature does not rise further due to residual heat. Even if you leave it as it is after thawing, it is kept cool in the partial free range temperature range of approximately -3℃, which is suitable for preserving bundles of fish, meat, etc., so the user can monitor the completion of thawing as usual. The food 46 can be safely thawed without having to be immediately processed, and the food 46 to be thawed can be used at any time after thawing, making it extremely convenient to use. In addition, the thawing chamber 16 is installed in the cold room 14, and both compartments are normally maintained in the virtual free range temperature range of about -31S, so the temperature inside the thawing chamber 16 is controlled from the cold room 14. It is not affected by heat and is accurate. In addition, thawing chamber 15
Inside, the lighting device is turned on for a certain period of time by turning on the lighting switch 53', so that the inside can be viewed from outside the refrigerator through the window 57 of the cold room door 6o.
また、照明装置４ｏは、外箱３２前方部に設置され照明
装置４０と同等以上に開孔された孔３ｓｂを有するため
解凍室１６内前方部が明るく照明され解凍室１５内にあ
る被解凍食品４５の解凍状況が明確に目視できる。Further, since the lighting device 4o is installed in the front part of the outer box 32 and has a hole 3sb opened to the same size or larger than that of the lighting device 40, the inside front part of the thawing chamber 16 is brightly illuminated, and the food to be thawed in the thawing chamber 15 is brightly illuminated. The thawing status of 45 can be clearly seen.
発明の効果
以上のように本発明の解凍室付き冷蔵庫によると次のよ
うな効果が得られる。Effects of the Invention As described above, the refrigerator with a defrosting chamber of the present invention provides the following effects.
（１）上面より還赤外線ヒータによる遠赤外線放射加熱
、底面よりの加熱ヒータによる熱伝導加熱の両面より効
率的に加熱でき、遠赤外線の被解凍食品内部への浸透効
果とも合わせて中心部と表面部の温度むらのない解凍が
短時間で出来る。(1) Efficient heating is possible from both sides: far-infrared radiant heating by a return infrared heater from the top, and conductive heating by a heating heater from the bottom. Thawing can be done in a short time without uneven temperature.
僻）解凍中は強制通風用の送風機を連続運転させて、反
射板の裏面空間に形成した通風路より被解凍食品に対し
て冷気を降下流入させるため被解凍食品の表面部が均等
に冷却され更に温度上昇が抑制されて解凍むらの少ない
解凍が実現できる。During thawing, a forced air blower is operated continuously to allow cold air to descend and flow into the food to be thawed through the ventilation path formed in the space on the back of the reflector, so that the surface of the food to be thawed is evenly cooled. Furthermore, temperature rise is suppressed and thawing with less unevenness can be achieved.
（３）解凍中、本来なら高温になる反射板と照明装置等
その他局辺部材も反射板が通風路に露出して冷却される
ため温度が低下し安全上も好都合である。また、照明装
置と遠赤外線ヒータ間に有するドーム部を直線状に切り
起こして遮へい板を設けているため照明装置の熱変形が
ない。(3) During thawing, the reflector and other peripheral components, such as the lighting device, which would otherwise be at a high temperature, are exposed to the ventilation path and cooled, so the temperature decreases, which is advantageous for safety. Further, since the dome portion between the lighting device and the far-infrared heater is cut and raised in a straight line to provide a shielding plate, there is no thermal deformation of the lighting device.
（４）解凍終了後は解凍室内が冷凍室温度と冷蔵室温度
の間の第３の温度帯（例えば約−３℃のパーシャルフリ
ージングφ中呼゛温度帯）に保冷されるため、解凍終了
直後の余熱で被解凍食品の温度がさらに上昇することが
無く、そのまま放置しておいても魚肉等の生ものに適し
た温度で鮮度が保持され任意の時間にその食品を利用す
ることができる。(4) After thawing, the inside of the thawing chamber is kept cool in the third temperature range between the freezing room temperature and the refrigerator room temperature (e.g., the nominal temperature range during partial freezing of approximately -3°C), so immediately after thawing is completed, The temperature of the food to be thawed does not further rise due to the residual heat of the food, and even if it is left as is, its freshness is maintained at a temperature suitable for raw food such as fish meat, and the food can be used at any time.
（５）解凍室は低温室に設置され、しかも通常時は両室
共に約−３℃のパーシャルフリーラング温度帯に維持さ
れているため、解凍室は低温室から熱影響を受けること
も無く前記のパーシャルフリーラング温度の温調が正確
に行なえる。(5) The thawing chamber is installed in a cold room, and since both chambers are normally maintained in the partial free range temperature range of approximately -3°C, the thawing chamber is not affected by heat from the cold room, as described above. Partial free run temperature can be controlled accurately.
（６）解凍室内前方に照明装置が設置され且つ解凍室前
方に窓体があるため、解凍の出来具合を確認する際、低
温室扉を開けずに庫外より目視確認できる。また、照明
装置は、解凍室内前方透明扉近傍に設け、照明装置と解
凍室内を連通ずる照明装置と同等以上に開孔された孔を
反射板に設けているため、解凍室内前方部が明るく照明
され解凍室内に収納された被解凍食品の解凍状況が明確
に目視できる。照明装置は一定時間点灯後、消灯するの
で照明装置の消し忘れにより解凍への影響も防止でき、
窓体には空気層が形成され、さらに熱反射フィルムによ
り熱線の侵入を防止しているので断熱性も十分確保され
ている。(6) Since a lighting device is installed in front of the thawing chamber and there is a window in front of the thawing chamber, the progress of thawing can be visually checked from outside the cold room without opening the door. In addition, the lighting device is installed near the front transparent door of the thawing chamber, and the reflecting plate has a hole that is equal to or larger than the lighting device that communicates the lighting device with the inside of the thawing chamber, so the front part of the thawing chamber is brightly illuminated. The thawing status of the food to be thawed and stored in the thawing chamber can be clearly seen. The lighting device turns off after being turned on for a certain period of time, so you can prevent the impact on thawing caused by forgetting to turn off the lighting device.
An air layer is formed in the window body, and a heat-reflecting film prevents heat rays from entering, ensuring sufficient insulation.
第１図は本発明の一実施例を示す冷蔵庫の解凍室の斜視
図、第２図は第１図の解凍室Ａ−Ａ’線における断面図
、第３図は同第１図の解凍室を備えた解凍室付き冷蔵庫
の縦断面図、第４図は同第１図の解凍室の入口に設けた
ダンパーサーモの拡大断面図、第６図は同第３図の窓体
部の縦断面図、第６図は第３図の解凍室付き冷蔵庫の電
気回路及び制御回路図、第７図は従来例を示す解凍箱の
斜視図、第８図は同第７図の解凍箱のＢ−Ｂ／線におけ
る断面図である。
１３・・・・・・冷凍室、１４・・・・・・低温室、１
４′・・・・・・冷蔵室、１６・・・・・・圧縮機、１
７・・・・・・冷却器、１８・・・・・・送風機、２ｏ
・・・・・・ダンパーサーモ、３４・・・・・・遠赤外
線ヒータ、３９・・・・・・反射板、３９ａ・・・・・
・通風孔、４ｏ・・・・・・照明装置、３ｓｂ・・・・
・・孔、３９ｃ・・・・・・遮へい板、４１・・・・・
・底面板、４２・・・・・・加熱ヒータ、４４・・・・
・・解凍皿、４６・・・・・・被解凍食品、４９・・・
・・・扉、６０・・・・・・通風路、６７・・・・・・
窓体、６８・・・・・・低温室扉、６８パ・・・・・・
ガラス、６９・・・・・・熱反射フィルム、６０・・・
・・・枠体、７８・・・・・・解凍制御装置、８５・・
・・・・照明制御装置。
代理人の氏名 弁理士 粟 野 重 孝 ほか１名３９
α
３ｋ 歴ＬＩＬ
第
蘭
−゛タンハ９−プー
モＯ
５７・−底、
６ρ−枠体
、９／Fig. 1 is a perspective view of a thawing chamber of a refrigerator showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A' of the thawing chamber in Fig. 1, and Fig. 3 is a sectional view of the thawing chamber in Fig. 1. Fig. 4 is an enlarged sectional view of the damper thermometer installed at the entrance of the defrosting chamber shown in Fig. 1, and Fig. 6 is a longitudinal sectional view of the window body section shown in Fig. 3. 6 is an electric circuit and control circuit diagram of the refrigerator with a defrosting chamber shown in FIG. 3, FIG. 7 is a perspective view of a conventional thawing box, and FIG. 8 is a B-B diagram of the thawing box shown in FIG. It is a sectional view taken along the line B/. 13... Freezer room, 14... Low temperature room, 1
4'...Refrigerating room, 16...Compressor, 1
7...Cooler, 18...Blower, 2o
......Damper thermo, 34...Far infrared heater, 39...Reflector, 39a...
・Ventilation hole, 4o...Lighting device, 3sb...
...hole, 39c...shielding plate, 41...
・Bottom plate, 42... Heater, 44...
... Thawing dish, 46... Food to be thawed, 49...
...door, 60...ventilation passage, 67...
Window body, 68... Cold room door, 68 pa...
Glass, 69... Heat reflective film, 60...
...Frame body, 78... Thawing control device, 85...
...Lighting control device. Name of agent: Patent attorney Shigetaka Awano and 1 other person39
α 3k history LIL dairan-゛tanha 9-pumo O 57・-bottom, 6ρ-frame body, 9/
Claims (1)
帯を有する低温室と、該低温室内に設置され、外周を断
熱材で囲み、前面開口部に開閉自在の透明扉を設けた解
凍室と、前記解凍室前方の相対向する位置に複数のガラ
ス、熱反射フィルム及び枠体より形成される窓体を設置
した低温室扉と、冷凍サイクルの圧縮機、冷却器と、前
記冷却器により冷却された空気を前記冷凍室、冷蔵室、
低温室及び解凍室に強制通風させる送風機と前記解凍室
の上部に設けた遠赤外線ヒータと、金属製の底面板の裏
面に熱伝導的に密着させた加熱ヒータと、前記遠赤外線
ヒータの上面及び側面をドーム状に覆う金属製の反射板
と、被解凍食品を載置して前記底面板上に熱伝導的且つ
着脱自在に設置される解凍皿と、前記解凍室の入口に設
けて冷気流入量を調節するダンパーサーモと、前記ダン
パーサーモより連通し、前記反射板の裏面上部空間に形
成した通風路と、前記通風路内の前記透明扉近傍に設け
られた照明装置と、前記反射板に設けて前記照明装置と
解凍室内とを連通する孔と、前記照明装置と前記遠赤外
線ヒータ間に有する前記反射板のドーム部を直線状に切
り起こして設けられた遮へい板と、前記反射板に設けて
前記通風路と解凍室内を連通する多数の通風孔と、解凍
中は前記送風機の連続運転制御を行うと共に、非解凍時
は前記解凍室を前記低温室と同一の温度帯に維持させる
解凍制御装置と、前記照明装置を一定時間点灯後、消灯
させる照明制御装置とより成る解凍室付き冷蔵庫。a freezing room, a refrigerator room, a low temperature room having a third temperature zone between the room temperatures of the two rooms, and a transparent door that is installed in the low temperature room, has an outer periphery surrounded by a heat insulating material, and can be opened and closed at the front opening. a thawing chamber provided with a thawing chamber; a cold room door having a window body formed of a plurality of glasses, a heat reflective film, and a frame body installed at opposing positions in front of the thawing chamber; a refrigeration cycle compressor, a cooler; , the air cooled by the cooler is transferred to the freezer compartment, the refrigerator compartment,
A blower for forcing air into the cold room and the thawing room; a far-infrared heater provided at the top of the thawing room; a heater that is thermally conductively in close contact with the back surface of the metal bottom plate; A metal reflector plate covering the side surface in a dome shape, a thawing plate that is heat-conductive and removably installed on the bottom plate on which the food to be thawed is placed, and a thawing plate provided at the entrance of the thawing chamber to allow cold air to flow in. a damper thermo that adjusts the amount, a ventilation passage that is communicated with the damper thermo and is formed in a space above the back surface of the reflection plate, a lighting device provided near the transparent door in the ventilation passage, and a lighting device that is provided in the vicinity of the transparent door in the ventilation passage; a hole provided to communicate between the lighting device and the inside of the thawing chamber; a shielding plate provided by cutting and raising a dome portion of the reflecting plate in a straight line between the lighting device and the far-infrared heater; A number of ventilation holes are provided to communicate the ventilation passage with the thawing chamber, and a thawing system that continuously controls the operation of the blower during thawing and maintains the thawing chamber in the same temperature range as the cold room when not thawing. A refrigerator with a thawing chamber comprising a control device and a lighting control device that turns on the lighting device for a certain period of time and then turns it off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18007090A JP2851688B2 (en) | 1990-07-06 | 1990-07-06 | Refrigerator with thawing room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18007090A JP2851688B2 (en) | 1990-07-06 | 1990-07-06 | Refrigerator with thawing room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0468287A true JPH0468287A (en) | 1992-03-04 |
| JP2851688B2 JP2851688B2 (en) | 1999-01-27 |
Family
ID=16076940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18007090A Expired - Fee Related JP2851688B2 (en) | 1990-07-06 | 1990-07-06 | Refrigerator with thawing room |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2851688B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5930454A (en) * | 1996-12-30 | 1999-07-27 | Daewoo Electronics., Ltd. | Refrigerator having an apparatus for thawing frozen food |
| JP2010048550A (en) * | 2009-12-03 | 2010-03-04 | Panasonic Corp | Refrigerator |
| JP2012220047A (en) * | 2011-04-05 | 2012-11-12 | Panasonic Corp | Refrigerator |
| US8840204B2 (en) * | 2003-01-24 | 2014-09-23 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Refrigerating appliance and door for one such appliance |
-
1990
- 1990-07-06 JP JP18007090A patent/JP2851688B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5930454A (en) * | 1996-12-30 | 1999-07-27 | Daewoo Electronics., Ltd. | Refrigerator having an apparatus for thawing frozen food |
| US8840204B2 (en) * | 2003-01-24 | 2014-09-23 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Refrigerating appliance and door for one such appliance |
| JP2010048550A (en) * | 2009-12-03 | 2010-03-04 | Panasonic Corp | Refrigerator |
| JP2012220047A (en) * | 2011-04-05 | 2012-11-12 | Panasonic Corp | Refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2851688B2 (en) | 1999-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0755319A (en) | Refrigerator | |
| JPH0468287A (en) | Refrigerator with thawing compartment | |
| JP2809830B2 (en) | Refrigerator with thawing room | |
| JP2815459B2 (en) | Refrigerator with thawing room | |
| JP2763623B2 (en) | Refrigerator with thawing room | |
| JP2763622B2 (en) | Refrigerator with thawing room | |
| JP2851683B2 (en) | Refrigerator with thawing room | |
| JPH05141858A (en) | Refrigerator with thawing chamber | |
| JPH0452475A (en) | Refrigerator with thawing chamber | |
| JPH03175252A (en) | Refrigerator with thawing compartment | |
| JP2892710B2 (en) | Refrigerator with thawing room | |
| JPH0428990A (en) | Electric refrigerator | |
| JP2528951B2 (en) | Refrigerator / refrigerator with defroster | |
| JPH0498072A (en) | Refrigerator equipped with defrosting chamber | |
| JP2809813B2 (en) | Refrigerator with thawing room | |
| JP2962367B2 (en) | Refrigerator with thawing room | |
| JPH03129281A (en) | Refrigerator with defreezing chamber | |
| JPH03134476A (en) | Refrigerator having thawing chamber | |
| JPH051880A (en) | Refrigerator equipped with defrosting chamber | |
| JPH03129283A (en) | Refrigerator with defreezing chamber | |
| JPH0445380A (en) | Refrigerator with defreezing chamber | |
| JP2863302B2 (en) | Refrigerator with thawing room | |
| JPH0445379A (en) | Refrigerator with defreezing chamber | |
| JPH0593569A (en) | Refrigerator with defreezing chamber | |
| JPH03129282A (en) | Refrigerator with deferring chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |