JPS63172873A - Refrigerator - Google Patents

Refrigerator

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Publication number
JPS63172873A
JPS63172873A JP318087A JP318087A JPS63172873A JP S63172873 A JPS63172873 A JP S63172873A JP 318087 A JP318087 A JP 318087A JP 318087 A JP318087 A JP 318087A JP S63172873 A JPS63172873 A JP S63172873A
Authority
JP
Japan
Prior art keywords
refrigerator
compartment
temperature
cold air
refrigerator compartment
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.)
Pending
Application number
JP318087A
Other languages
Japanese (ja)
Inventor
博 小林
永村 清治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP318087A priority Critical patent/JPS63172873A/en
Publication of JPS63172873A publication Critical patent/JPS63172873A/en
Pending legal-status Critical Current

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  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は冷蔵庫に係り、特に冷蔵室に収納した食品の氷
結を防止するに好適な冷蔵庫に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a refrigerator, and particularly to a refrigerator suitable for preventing freezing of food stored in a refrigerator compartment.

〔従来の技術〕[Conventional technology]

従来の冷蔵庫は実開昭60−167984号に記載のよ
うに、冷凍室の急速冷凍運転は冷凍室内の食品の温度が
所定温度以下になると急速冷凍運転を終了するようにな
っている。
As described in Japanese Utility Model Application No. 60-167984, in a conventional refrigerator, the quick freezing operation of the freezer compartment is terminated when the temperature of the food in the freezer compartment falls below a predetermined temperature.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上記従来技術の急速冷凍運転は冷蔵室の温度に関係なく
長時間連続運転される。その結果冷蔵室が冷えすぎてし
まい、冷蔵室内に貯蔵された食品が氷結してしまう可能
性があった。
The rapid freezing operation of the above-mentioned prior art is continuously operated for a long time regardless of the temperature of the refrigerator compartment. As a result, the refrigerator compartment became too cold, and there was a possibility that food stored in the refrigerator compartment would freeze.

本発明の目的は、急速冷凍運転により冷蔵室内の食品が
氷結することを防止した冷蔵庫を提供することにある。
An object of the present invention is to provide a refrigerator that prevents food in the refrigerator compartment from freezing during quick freezing operation.

〔問題点を解決するための手段〕[Means for solving problems]

上記目的は、冷凍室と冷蔵室とからなる冷気循環形冷蔵
庫において、上記冷蔵室の所定の位置に温度センサーを
設け、上記温度センサーによって上記冷蔵室内に設けら
れた送風機を制御することにより達成される。
The above object is achieved by providing a temperature sensor at a predetermined position in the refrigerator compartment in a cold air circulation refrigerator consisting of a freezer compartment and a refrigerator compartment, and controlling a blower provided in the refrigerator compartment by the temperature sensor. Ru.

〔作用〕[Effect]

冷蔵室内の温度を冷蔵室に設けられた温度センサーによ
って検出すると、温度センサーは冷蔵室に設けた送風機
の回転を0N−OFFさせる。それによって、冷蔵室内
の冷気は撹拌され冷蔵室内の温度は均一になる。
When the temperature inside the refrigerator compartment is detected by a temperature sensor provided in the refrigerator compartment, the temperature sensor turns off the rotation of the blower provided in the refrigerator compartment. As a result, the cold air in the refrigerator compartment is stirred and the temperature in the refrigerator compartment is made uniform.

〔実施例〕〔Example〕

以下、本発明の一実施例を第1図により説明する0図に
おいて、1は冷蔵庫箱体で、中仕切2により内部を冷凍
室3と冷蔵室4に分割している。
Hereinafter, one embodiment of the present invention will be described with reference to FIG. 1. In FIG. 1, reference numeral 1 denotes a refrigerator box, the interior of which is divided into a freezing compartment 3 and a refrigerating compartment 4 by a partition 2.

5は圧縮機、6は蒸発器、7は冷凍室送風機である。8
は冷凍室送風機7の近くから冷蔵室4に連通ずる冷気通
路、9は冷蔵室4の一部に存在する冷気通路8の開口部
に設けられたサーマルダンパーである。9aは冷蔵室4
内の温度を感知する感熱管である。この感熱管9aによ
って上記サーマルダンパー9が開口部を開閉回動するよ
うに指令する。10は冷凍室温度調節器で、その感熱部
の近くには小容量の加熱装置11が配設されている。1
5は冷蔵室撹拌送風機である。
5 is a compressor, 6 is an evaporator, and 7 is a freezer compartment blower. 8
9 is a cold air passage communicating with the refrigerator compartment 4 from near the freezer compartment blower 7, and 9 is a thermal damper provided at the opening of the cold air passage 8 existing in a part of the refrigerator compartment 4. 9a is refrigerator compartment 4
It is a heat-sensitive tube that senses the temperature inside. This heat-sensitive tube 9a commands the thermal damper 9 to rotate to open and close the opening. Reference numeral 10 denotes a freezer temperature regulator, and a small-capacity heating device 11 is disposed near its heat-sensitive section. 1
5 is a refrigerator room stirring blower.

かかる構成において、蒸発器6で冷却された空気は第1
図の矢印で示すように、冷凍室送風機7により、一部は
冷凍室3に、残りの冷気は冷気通路8.サーマルダンパ
ー9を経て冷蔵室4に導かれる。冷凍室3に導かれた冷
気の一部は冷凍室3の一部を仕切って形成した急速冷凍
室3aにも供給され、この急速冷凍室3a内を冷凍室3
より低温に冷却する。更に冷凍室3に供給された冷気は
中仕切2の冷気通路2aを経て、蒸発器6に戻る経路を
循環する。一方冷蔵室4に供給された冷気は冷蔵室4を
冷却し、中仕切2の冷気通路2bを経て、蒸発器6に戻
る経路を循環する。
In such a configuration, the air cooled by the evaporator 6 is
As shown by the arrow in the figure, a part of the cold air is sent to the freezer compartment 3 by the freezer compartment blower 7, and the remaining cold air is sent to the cold air passage 8. It is led to the refrigerator compartment 4 via a thermal damper 9. A part of the cold air guided to the freezing compartment 3 is also supplied to a quick freezing compartment 3a formed by partitioning a part of the freezing compartment 3, and the inside of this quick freezing compartment 3a is connected to the freezing compartment 3.
Cool to a lower temperature. Furthermore, the cold air supplied to the freezer compartment 3 passes through the cold air passage 2a of the partition 2 and circulates through a path returning to the evaporator 6. On the other hand, the cold air supplied to the refrigerator compartment 4 cools the refrigerator compartment 4, passes through the cold air passage 2b of the partition 2, and circulates through a path returning to the evaporator 6.

冷凍室温度調節器10は感熱部の配設周囲温度が所定値
になると開閉器が動作し圧縮機5の運転を停動させて冷
凍室3の温度を一定に保持する。
When the ambient temperature of the heat-sensitive section of the freezer compartment temperature controller 10 reaches a predetermined value, a switch is operated to stop the operation of the compressor 5 and maintain the temperature of the freezer compartment 3 at a constant level.

またサーマルダンパー9は感熱管9aが配設された位置
の温度を感知して、冷気流路に設けられたダンパーが開
閉する。この開閉によって、冷気循環量がコントロール
され、冷蔵室4の温度を一定に保持する。
Further, the thermal damper 9 senses the temperature at the position where the heat-sensitive tube 9a is disposed, and the damper provided in the cold air flow path opens and closes. By opening and closing, the amount of cold air circulated is controlled and the temperature of the refrigerator compartment 4 is maintained constant.

上記冷蔵庫の電気回路を第2図により説明する12は霜
取タイマで、定速モータ12aの回転により定時間に接
点部12bが動作する。13は霜取ヒータ、14は霜取
サーモである。上記冷凍室温度調節器10により圧縮機
5と冷凍室送風機7は運転を停動する。霜取タイマ12
は接点部12bの動作により、蒸発器6に付着した霜、
氷を霜取ヒータ13に通電し、融解、除霜する。霜取サ
ーモ14は霜取終了を検出し開路し、該霜取ヒータ13
への通電を終了させる。16はヒータ制御リレーで、開
閉器部が加熱装置11と後述の庫内加熱装置32への通
電を入・切する。17はモータ制御リレーで、その開閉
器17a、17bは連動する。18は急速冷凍ボタンで
、冷凍室3の急速冷凍室3aを、短時間に、しかも極低
温(例えば−25℃以下)に冷却する急速冷凍運転を選
択するときに使用する。19.20.21は抵抗体、2
2.23.24は温度検出器(例えばサーミスタ)で、
これらは冷蔵室4の任意の位置、例えばA、B、C点に
それぞれ配設される。25は基準電圧発生器(例えば0
℃の設定)、26.27.28は電圧比較器、29は制
御回路で、急速冷凍ボタン18による急速冷凍運転の入
力処理及び温度検出器22.23.24の抵抗値変化を
電圧比較器26.27.28で基準電圧発生器25との
電圧の差として検出し、これを入力信号として取入れ、
冷蔵室4の温度変化として処理し、バッファ30.31
を介してヒータ制御リレー16、モータ制御リレー17
を駆動する。32は庫内加熱装置で冷蔵室4の背面に配
設され、寒冷地などで冷蔵室4が特に冷えすぎるときに
使用する。
The electric circuit of the refrigerator will be explained with reference to FIG. 2. Reference numeral 12 is a defrost timer, and a contact portion 12b is operated at a fixed time by rotation of a constant speed motor 12a. 13 is a defroster heater, and 14 is a defrost thermostat. The operation of the compressor 5 and the freezer compartment blower 7 is stopped by the freezer compartment temperature regulator 10. Defrost timer 12
By the operation of the contact part 12b, frost adhering to the evaporator 6,
The ice is energized to the defrosting heater 13 to melt and defrost the ice. The defrost thermometer 14 detects the end of defrosting and opens, and the defrost heater 13
Terminates energization to. Reference numeral 16 denotes a heater control relay, and a switch section turns on/off energization to the heating device 11 and an internal heating device 32, which will be described later. 17 is a motor control relay, and its switches 17a and 17b are interlocked. Reference numeral 18 denotes a quick-freeze button, which is used to select a quick-freeze operation that cools the quick-freeze chamber 3a of the freezer compartment 3 to an extremely low temperature (for example, −25° C. or lower) in a short period of time. 19.20.21 is a resistor, 2
2.23.24 is a temperature detector (e.g. thermistor),
These are arranged at arbitrary positions in the refrigerator compartment 4, for example, at points A, B, and C, respectively. 25 is a reference voltage generator (for example, 0
℃ setting), 26, 27, and 28 are voltage comparators, and 29 is a control circuit. .27.Detected as a voltage difference with the reference voltage generator 25 at 28, and incorporating this as an input signal,
Processed as temperature change in refrigerator compartment 4, buffer 30.31
Heater control relay 16, motor control relay 17 via
to drive. Reference numeral 32 denotes an internal heating device, which is disposed at the back of the refrigerator compartment 4 and is used when the refrigerator compartment 4 is particularly cold, such as in a cold region.

さらに本電気回路の動作を説明する。急速冷凍ボタン1
8を押圧すると、制御回路29は動作状態となり、まず
ヒータ制御リレー16が動作して加熱装置llが発熱し
、冷凍室温度調節器10の感熱部を加熱するので、該冷
凍室温度調節器1oの見かけの設定温度より低温にセッ
トしたことになり圧縮機5が連続運転する。それによっ
て、冷凍室3はより低温に、かつ急速に冷却される。こ
のとき、冷蔵室4には極低温の冷気が冷気通路8.サー
マルダンパー9を経て降下するので、冷気吐出口の直下
及び冷気のよどむ底部は局部的に食品の氷結温度以下に
低下してしまうが温度検出器が冷蔵庫内の温度が0℃で
あることを検出すると、モータ制御用リレー16を駆動
し冷蔵室撹拌送風機15を運転して、冷蔵室4全体の温
度を均一にする。
Furthermore, the operation of this electric circuit will be explained. Quick freezing button 1
When 8 is pressed, the control circuit 29 enters the operating state, and the heater control relay 16 is activated to generate heat in the heating device 11, which heats the heat-sensitive part of the freezer compartment temperature regulator 10. The compressor 5 is set to a lower temperature than the apparent set temperature, and the compressor 5 operates continuously. Thereby, the freezer compartment 3 is cooled to a lower temperature and rapidly. At this time, extremely low-temperature cold air flows into the cold air passage 8. As the cold air descends through the thermal damper 9, the temperature directly below the cold air outlet and the bottom where the cold air stagnates locally drops below the freezing temperature of the food, but the temperature sensor detects that the temperature inside the refrigerator is 0°C. Then, the motor control relay 16 is driven to operate the refrigerating room stirring blower 15 to make the temperature of the entire refrigerating room 4 uniform.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、冷蔵室の局部的な冷えすぎを防止でき
るので、冷蔵室内の食品を氷結させない効果がある。
According to the present invention, it is possible to prevent the refrigerator compartment from becoming too cold locally, so there is an effect of preventing food in the refrigerator compartment from freezing.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す冷蔵庫の縦断面図、第
2図は本発明の冷蔵庫の電気回路を示す図である。 1・・・冷蔵庫箱体、2・・・中仕切、3・・・冷凍室
、4・・・冷蔵室、5・・・圧縮機、6・・蒸発器、7
・・・冷凍室送風機、8・・・冷気通路、9・サーマル
ダンパー、10・・・冷凍室温度調節器、11・・・加
熱装置、12・・・霜取タイマー、13・・・霜取ヒー
タ、14・・・霜取サーモ、15・・・冷蔵室撹拌送風
機、16・・・ヒータ制御リレー、17・・・モータ制
御リレー、18・・・急速冷凍ボタン、19.20、2
1・・・抵抗体、22.23.24・・・温度検出器、
25・・・基準電圧発生器、26.27.28・・・電
圧比較器、29・・・制御回路、30.31・・・バッ
ファ、32・・庫内加熱装置5、圧縮機・ 8・滲入ム烙 9・ 寸−フルア°ン、り−
FIG. 1 is a longitudinal sectional view of a refrigerator showing an embodiment of the present invention, and FIG. 2 is a diagram showing an electric circuit of the refrigerator of the present invention. 1... Refrigerator box, 2... Inner partition, 3... Freezer compartment, 4... Refrigerator compartment, 5... Compressor, 6... Evaporator, 7
... Freezer compartment blower, 8... Cold air passage, 9 - Thermal damper, 10... Freezer room temperature regulator, 11... Heating device, 12... Defrost timer, 13... Defrost Heater, 14... Defrost thermostat, 15... Refrigerator room stirring blower, 16... Heater control relay, 17... Motor control relay, 18... Rapid freezing button, 19.20, 2
1...Resistor, 22.23.24...Temperature detector,
25... Reference voltage generator, 26.27.28... Voltage comparator, 29... Control circuit, 30.31... Buffer, 32... Internal heating device 5, compressor 8. Infiltration of heat 9.

Claims (1)

【特許請求の範囲】[Claims] 1、冷凍室と冷蔵室とからなる冷気循環形冷蔵庫におい
て、上記冷蔵室の所定の位置に温度センサーを設け、上
記温度センサーによって上記冷蔵室内に設けられた送風
機の回転を制御することを特徴とする冷蔵庫。
1. A cold air circulation refrigerator consisting of a freezer compartment and a refrigerator compartment, characterized in that a temperature sensor is provided at a predetermined position in the refrigerator compartment, and the rotation of a blower provided in the refrigerator compartment is controlled by the temperature sensor. Refrigerator.
JP318087A 1987-01-12 1987-01-12 Refrigerator Pending JPS63172873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP318087A JPS63172873A (en) 1987-01-12 1987-01-12 Refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP318087A JPS63172873A (en) 1987-01-12 1987-01-12 Refrigerator

Publications (1)

Publication Number Publication Date
JPS63172873A true JPS63172873A (en) 1988-07-16

Family

ID=11550189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP318087A Pending JPS63172873A (en) 1987-01-12 1987-01-12 Refrigerator

Country Status (1)

Country Link
JP (1) JPS63172873A (en)

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