JPH05223427A - Temperature control device of refrigerator - Google Patents
Temperature control device of refrigeratorInfo
- Publication number
- JPH05223427A JPH05223427A JP2673692A JP2673692A JPH05223427A JP H05223427 A JPH05223427 A JP H05223427A JP 2673692 A JP2673692 A JP 2673692A JP 2673692 A JP2673692 A JP 2673692A JP H05223427 A JPH05223427 A JP H05223427A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- refrigerating
- control device
- refrigerator
- freezing
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Control Of Temperature (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、冷蔵室専用のダクト及
び冷気制御装置を有した冷蔵庫の温度制御装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature control device for a refrigerator having a duct for a refrigerating room and a cool air control device.
【0002】[0002]
【従来の技術】本発明に先行する特開昭62−2408
4号公報には、冷気供給用ダクト内に設けられた冷気制
御装置のバッフル駆動用モータの運転時間を、被冷却空
間の温度に基づいて自動設定する温度制御装置を備えた
冷却貯蔵庫が開示されており、特に運転時間を変化させ
ることによりバッフルの開度を変化させて被冷却空間へ
の冷気供給量を制御するようにしたものである。尚、最
近の冷蔵庫にあっては、冷蔵室の一部あるいは冷蔵室と
は別個に、制御温度幅が狭く食品が凍結する直前の温度
帯即ち氷温温度帯に維持される氷温室を設けたものが増
加しているが、この公報の冷却貯蔵庫には、冷蔵室専用
のダクトだけでなくこの氷温室に冷気を導くダクト内に
も冷気の流れを制御するモーターダンパー等の冷気制御
装置が配置してある。2. Description of the Related Art Japanese Unexamined Patent Publication No. 62-2408 prior to the present invention.
Japanese Patent Publication No. 4 discloses a cooling storage provided with a temperature control device that automatically sets an operating time of a baffle drive motor of a cold air control device provided in a cold air supply duct based on a temperature of a space to be cooled. In particular, the opening of the baffle is changed by changing the operating time to control the amount of cold air supplied to the cooled space. In recent refrigerators, an ice greenhouse, which has a narrow control temperature range and is maintained in the temperature range immediately before freezing of food, that is, the ice temperature range, is provided separately from a part of the refrigerating room or separately from the refrigerating room. Although the number of items is increasing, the cooling storage of this publication has a cool air control device such as a motor damper that controls the flow of cold air not only in the duct dedicated to the refrigerating room but also in the duct that guides cool air to this ice greenhouse. I am doing it.
【0003】[0003]
【発明が解決しようとする課題】前記公報の温度制御装
置は、冷蔵室(又は氷温室)の温度だけに基づいてモー
タの運転時間を設定するものであるため、冷蔵室への食
品投入量や冷蔵室あるいは冷蔵庫の周囲温度変化に対応
した温度制御を行うことができず、冷蔵庫を設置する環
境や使用者の使い方等に合わせて自動的に冷蔵室への冷
気供給量を制御できるものではなかった。Since the temperature control device of the above publication sets the operating time of the motor based only on the temperature of the refrigerating room (or ice greenhouse), the amount of food input to the refrigerating room and It is not possible to control the temperature corresponding to changes in the ambient temperature of the refrigerator or refrigerator, and it is not possible to automatically control the amount of cold air supplied to the refrigerator according to the environment in which the refrigerator is installed and the usage of the user. It was
【0004】特に最近の冷蔵庫は大容量化し冷蔵室の容
積も大きくなっているため、従来に比べて冷蔵室内に温
度分布が生じやすく食品投入による温度上昇も顕著にな
り、より精密な冷蔵室の温度制御が要求されている。ま
た冷蔵庫の温度制御装置においては、冷却器に冷媒を供
給させる圧縮機及び冷却器で冷却された冷気を各貯蔵室
に循環させる送風機の動作制御を、冷凍室の温度に基づ
いて行うものが主流である。このため、冷蔵室の温度が
冷蔵用ダンパーの開放温度以上になりダンパーを開放さ
せても、冷凍室の温度が圧縮機及び送風機の動作設定温
度以上でないかぎり圧縮機及び送風機は動作しないの
で、冷蔵室に所望の冷気供給が行えず冷蔵室の温度上昇
を招いて食品の品質劣化が起こりやすい不具合があっ
た。In particular, since recent refrigerators have a large capacity and a large volume in the refrigerating compartment, a temperature distribution is more likely to occur in the refrigerating compartment than in the conventional case, and the temperature rise due to the addition of food becomes remarkable, so that a more precise refrigerating compartment Temperature control is required. Further, in the temperature control device of the refrigerator, the one that mainly controls the operation of the compressor that supplies the refrigerant to the cooler and the blower that circulates the cool air cooled by the cooler to each storage room based on the temperature of the freezing room is the mainstream. Is. For this reason, even if the temperature of the refrigerating room becomes equal to or higher than the opening temperature of the refrigerating damper and the damper is opened, the compressor and blower do not operate unless the temperature of the freezing compartment is higher than the operation set temperature of the compressor and blower. There was a problem that the desired cold air could not be supplied to the chamber and the temperature of the refrigerating chamber was increased, so that the quality of the food product was likely to deteriorate.
【0005】そこで本発明では、冷気循環を制御する送
風機及び圧縮機の動作設定温度を、冷蔵室の温度変化と
外気温度とに基づいて自動修正して冷蔵室の温度上昇を
抑制するようにした冷蔵庫の温度制御装置を提供するこ
とを目的とする。Therefore, in the present invention, the operation set temperatures of the blower and the compressor for controlling the cold air circulation are automatically corrected on the basis of the temperature change of the refrigerating compartment and the outside air temperature to suppress the temperature rise of the refrigerating compartment. An object is to provide a temperature control device for a refrigerator.
【0006】[0006]
【課題を解決するための手段】本発明は、冷蔵庫内に区
画された冷蔵室及び冷凍室と、冷却器に冷媒を供給する
圧縮機と、冷却器で冷却された冷気を冷蔵室及び冷凍室
へ循環させる送風機と、前記冷気を冷蔵室へ導くダクト
と、このダクトに配置され冷気量を制御する冷気制御装
置と、この冷気制御装置と前記圧縮機及び送風機の動作
を制御する温度制御装置とを備えた冷蔵庫において、前
記温度制御装置は、冷蔵室の温度を設定する冷蔵温度設
定手段と、冷凍室の温度を設定する冷凍温度設定手段
と、冷蔵室の温度を検出する冷蔵室温度センサと、外気
の温度を検出する外気温度センサと、前記冷気制御装置
と圧縮機及び送風機の動作を制御する信号を出力する制
御手段とを有し、この制御手段は、前記冷蔵温度設定手
段で設定された冷蔵設定温度と前記冷蔵室温度センサで
検出された冷蔵室温度との差及び外気温度センサで検出
された外気温度に基づいて前記冷凍温度設定手段で設定
された冷凍設定温度を修正する設定温度修正部と、この
設定温度修正部で修正された修正温度に基づいて前記冷
気制御装置と圧縮機及び送風機を起動する起動信号を出
力する信号出力部とを備えた冷蔵庫の温度制御装置を提
供するものである。The present invention is directed to a refrigerating compartment and a freezing compartment defined in a refrigerator, a compressor for supplying a refrigerant to a cooler, and cold air cooled by the cooler to the refrigerating compartment and the freezing compartment. And a duct for guiding the cool air to the refrigerating chamber, a cool air control device arranged in the duct for controlling the amount of cold air, and a temperature control device for controlling the operation of the cool air control device and the compressor and the blower. In the refrigerator provided with, the temperature control device, a refrigerating temperature setting means for setting the temperature of the refrigerating compartment, a freezing temperature setting means for setting the temperature of the freezing compartment, a refrigerating compartment temperature sensor for detecting the temperature of the refrigerating compartment, An external air temperature sensor for detecting the temperature of the external air, and a control means for outputting signals for controlling the operations of the cold air control device and the compressor and the blower, the control means being set by the refrigeration temperature setting means. Cold storage A set temperature correction unit that corrects the freezing set temperature set by the freezing temperature setting means based on the difference between the constant temperature and the refrigerating room temperature detected by the refrigerating room temperature sensor and the outside air temperature detected by the outside air temperature sensor. And a temperature control device for a refrigerator provided with the cold air control device and a signal output part for outputting a start signal for starting the compressor and the blower based on the corrected temperature corrected by the set temperature correction part. is there.
【0007】[0007]
【作用】冷蔵設定温度と冷蔵室温度との差及び外気温度
センサで検出された外気温度に基づいて、設定温度修正
部は、冷凍温度設定手段で設定された冷凍設定温度(詳
しくは圧縮機及び送風機を起動させるための起動温度)
を自動的に低下させるように修正するので、冷蔵室の温
度上昇に基づいた冷気供給開始手段及び冷蔵室の温度上
昇を抑制する温度上昇抑制手段として作用する。According to the difference between the refrigerating set temperature and the refrigerating room temperature and the outside air temperature detected by the outside air temperature sensor, the set temperature correction unit sets the freezing set temperature set by the freezing temperature setting means (specifically, compressor and (Starting temperature for starting the blower)
Is corrected so as to be automatically lowered, so that it functions as a cold air supply starting means based on a temperature rise in the refrigerating compartment and a temperature rise suppressing means for suppressing a temperature rise in the refrigerating compartment.
【0008】[0008]
【実施例】以下図面に基づいて本発明の実施例を説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【0009】1は家庭用冷蔵庫であり、この冷蔵庫1は
その本体を構成する前面開口の断熱箱2と、この開口を
閉塞する扉3,4,5,6,7,8とで構成されてい
る。Reference numeral 1 denotes a household refrigerator, which is composed of a heat insulating box 2 having a front opening which constitutes the main body thereof, and doors 3, 4, 5, 6, 7, 8 which close the opening. There is.
【0010】11は断熱箱2の内部を上下に仕切る横仕
切壁であり、本実施例ではこの横仕切壁11の上方を凍
結温度に冷却される冷凍室12、下方を食品が凍結しな
い温度に冷却される貯蔵室とするものである。尚、貯蔵
室は仕切前部材13及び仕切板14により更に上下に仕
切られ、仕切板14の上方を3℃程度の温度に冷却され
る冷蔵室15、下方を1℃〜7℃程度の温度帯で温度設
定可能な選択室16としている。Reference numeral 11 denotes a horizontal partition wall which divides the inside of the heat insulating box 2 into upper and lower parts. In this embodiment, the upper part of the horizontal partition wall 11 is a freezing chamber 12 which is cooled to a freezing temperature, and the lower part is a temperature at which food is not frozen. The storage room is to be cooled. The storage chamber is further divided into upper and lower parts by a pre-partition member 13 and a partition plate 14, a refrigerating chamber 15 in which the upper part of the partition plate 14 is cooled to a temperature of about 3 ° C., and the lower part is a temperature zone of about 1 ° C. to 7 ° C. The temperature is set in the selection chamber 16.
【0011】扉3及び4は、冷凍室12に対応する回動
式の扉であり、扉4には冷凍室の開口を左右に仕切る仕
切体17を設けている。扉5及び6は冷蔵室15に対応
する回動式の扉であり、扉6には冷蔵室の開口を左右に
仕切る仕切体18を設けている。The doors 3 and 4 are rotatable doors corresponding to the freezing compartment 12, and the door 4 is provided with a partition body 17 for partitioning the opening of the freezing compartment into left and right. The doors 5 and 6 are pivotable doors corresponding to the refrigerating compartment 15, and the door 6 is provided with a partition 18 for partitioning the opening of the refrigerating compartment into left and right.
【0012】扉7及び8は、選択室16において、縦仕
切壁30によって左右に仕切られるボトル室及び野菜室
に対応する引き出し式扉であり、両扉にはそれぞれ主と
してボトル及び野菜を収納するための上面開口の容器2
1,22が着脱自在に設けてある。The doors 7 and 8 are drawer-type doors corresponding to the bottle room and the vegetable room, which are partitioned by the vertical partition wall 30 into the left and right sides in the selection room 16, and both doors mainly store the bottle and the vegetable, respectively. Container 2 with a top opening
1, 22 are detachably provided.
【0013】冷凍室12の背部には冷却器カバー31と
断熱箱2とで形成される冷却器室があり、この冷却器室
には冷却器としてのプレートフィン型蒸発器(図示せ
ず)及びシロッコファン等の送風機(図示せず)が配置
されている。尚、冷却器室は、カバー31に形成した吹
出口32,33,34にて冷凍室12と連通する一方、
ダクト(図示せず)により横仕切壁11の後部で冷蔵室
15と連通している。At the back of the freezer compartment 12 is a cooler compartment formed by a cooler cover 31 and a heat insulating box 2. In this cooler compartment, a plate fin type evaporator (not shown) as a cooler and A blower (not shown) such as a sirocco fan is arranged. The cooler chamber communicates with the freezing chamber 12 at the outlets 32, 33, 34 formed in the cover 31, while
A duct (not shown) communicates with the refrigerator compartment 15 at the rear of the horizontal partition wall 11.
【0014】冷凍室12は2枚の棚35,36で上中下
3段に仕切られており、下段は縦仕切板37により左右
に仕切られている。また、中段左側の後部には自動製氷
機38が配置されており、この後部空間を製氷室39と
いう。製氷室は製氷機カバー40にて覆われるとともに
中段左側の前部と仕切られている。さらに、縦仕切板3
7の左側の空間には自動製氷機で製作した氷を貯める容
器が出し入れ自在に配置される。The freezer compartment 12 is divided into upper, middle and lower three stages by two shelves 35 and 36, and the lower stage is divided into right and left by a vertical partition plate 37. An automatic ice making machine 38 is arranged at the rear part on the left side of the middle stage, and this rear space is called an ice making chamber 39. The ice making chamber is covered with the ice making machine cover 40 and is partitioned from the front part on the left side of the middle stage. Furthermore, vertical partition plate 3
In the space on the left side of 7, a container for storing ice made by an automatic ice making machine is arranged so that it can be freely taken in and out.
【0015】縦仕切板37の右側空間には、底板、左右
側板及び背板からなる容器が冷凍室の底壁となる横仕切
壁11の上面と間隔を存して出し入れ自在に配置され、
吹出口34から吹き出された冷気で冷却される急速冷凍
室44が形成されている。この容器の底板にはアルミニ
ウム等熱伝導性の良好な金属板を採用している。尚、冷
凍室12に吹き出された冷気は、容器の底板と横仕切壁
11とで作られる冷気帰還路42を介して冷却器室の下
部へ帰還する。また、以下の説明の便宜上、急速冷凍室
44以外の冷凍室を第1冷凍室43と称する。In the space on the right side of the vertical partition plate 37, a container composed of a bottom plate, left and right side plates and a back plate is arranged so as to be able to be taken in and out with a space from the upper surface of the horizontal partition wall 11 serving as the bottom wall of the freezer compartment.
A quick freezing chamber 44 is formed that is cooled by the cold air blown out from the air outlet 34. The bottom plate of this container is made of a metal plate having good thermal conductivity such as aluminum. The cool air blown into the freezer compartment 12 returns to the lower part of the cooler compartment through the cool air return path 42 formed by the bottom plate of the container and the horizontal partition wall 11. Further, for convenience of the following description, the freezing chambers other than the quick freezing chamber 44 are referred to as the first freezing chamber 43.
【0016】第1冷凍室43内には、その温度を検出す
るための2つの温度センサが設けてあり、2つのうちの
一方は吹出口33の近傍に設けられた冷凍室温度センサ
としての主温度センサ45(以下Fセンサという)であ
り、2つのうちの他方は製氷室39の製氷皿近傍に設け
られた従温度センサ46である。また、急速冷凍室44
には、吹出口34近傍に急冷室温度センサ47が設けら
れ、容器の底板下面に接触する負荷温度センサ48が設
けてある。In the first freezer compartment 43, two temperature sensors for detecting the temperature are provided, and one of the two is provided as a main freezer compartment temperature sensor provided in the vicinity of the air outlet 33. A temperature sensor 45 (hereinafter referred to as an F sensor), and the other of the two is a sub-temperature sensor 46 provided near the ice tray in the ice making chamber 39. In addition, the quick freezing chamber 44
Is provided with a quenching chamber temperature sensor 47 near the outlet 34, and a load temperature sensor 48 that comes into contact with the bottom surface of the bottom plate of the container.
【0017】横仕切壁11の直下には、温度制御幅が狭
く食品が凍結する直前の温度即ち氷温温度(例えば−1
℃程度の温度)に維持される氷温室49が形成されてい
る。前記冷却器室は、ダクト(図示せず)に形成した開
口によってダクトを介してこの氷温室49にも連通して
いる。氷温室49への冷気量は、ダクトの途中に設けた
氷温用ダンパーを含む氷温室冷気制御装置(図示せず)
により制御される。また冷蔵室15への冷気量は、ダク
トの途中に設けた冷蔵用ダンパーを含む冷蔵室冷気制御
装置(以下単にRダンパーという)52により制御され
るものである。Directly below the horizontal partition wall 11, the temperature control width is narrow and the temperature immediately before the food is frozen, that is, the ice temperature (eg -1).
An ice greenhouse 49 is formed which is maintained at a temperature of about ° C. The cooler chamber is also in communication with the ice greenhouse 49 via a duct by an opening formed in a duct (not shown). The amount of cold air to the ice greenhouse 49 is an ice greenhouse cold air control device (not shown) including an ice temperature damper provided in the middle of the duct.
Controlled by. The amount of cold air to the refrigerating compartment 15 is controlled by a refrigerating compartment cold air control device (hereinafter, simply referred to as R damper) 52 including a damper for refrigerating provided in the middle of the duct.
【0018】Rダンパー52の構成を説明すると、ダク
トに形成された開口を開閉するバッフル52Bと、この
バッフル52Bの駆動源としてのモータ52Cと、この
モータ52Cの回転をバッフル52Bの閉→開→閉とい
う1サイクルの開閉動作に変換する動力変換手段(図示
せず)と、この動力変換手段の1サイクル動作の中でバ
ッフル52Bが全閉位置に対応する部分において信号
(以下この信号を位置検出信号という)を出力する位置
検出手段(図示せず)とを備えており、図1のブロック
回路図ではまとめて52で示してある。このRダンパー
52は、冷蔵室温度制御装置53からの制御信号に基づ
いてその動作が制御されるものである。Explaining the structure of the R damper 52, the baffle 52B for opening and closing the opening formed in the duct, the motor 52C as a drive source for the baffle 52B, and the rotation of the motor 52C are closed → open →. A power conversion means (not shown) for converting into a one-cycle opening / closing operation of closing, and a signal (hereinafter, this signal is used to detect a position in a portion corresponding to the fully closed position of the baffle 52B in the one-cycle operation of the power conversion means). Position detection means (not shown) for outputting a signal), which is collectively indicated by 52 in the block circuit diagram of FIG. The operation of the R damper 52 is controlled based on a control signal from the refrigerating compartment temperature control device 53.
【0019】次に冷蔵室温度制御装置53を図1のブロ
ック回路図に基づき説明する。Next, the refrigerating compartment temperature control device 53 will be described with reference to the block circuit diagram of FIG.
【0020】冷蔵室温度制御装置53は、冷蔵室の温度
を検出する冷蔵室温度センサとしての主温度センサ54
及び従温度センサ55,56と、冷蔵室の温度を設定す
る冷蔵温度設定手段(以下R温度設定手段という)57
と、冷凍室の温度を設定する冷凍温度設定手段(以下F
温度設定手段という)58と、外気温度を検出する外気
温度センサ59と、Rダンパー52と圧縮機駆動用の圧
縮機モータ66及びファン駆動用のファンモータ67の
動作を制御する信号を出力する制御手段60としてのマ
イクロコンピュータとを有する。The refrigerating compartment temperature control device 53 is a main temperature sensor 54 as a refrigerating compartment temperature sensor for detecting the temperature of the refrigerating compartment.
And sub-temperature sensors 55 and 56, and a refrigerating temperature setting means (hereinafter referred to as R temperature setting means) 57 for setting the temperature of the refrigerating compartment.
And a freezing temperature setting means (hereinafter referred to as F
58), an outside air temperature sensor 59 for detecting the outside air temperature, an R damper 52, a compressor motor 66 for driving the compressor, and a fan motor 67 for driving the fan. And a microcomputer as the means 60.
【0021】ここでいう信号は、バッフル52Bを開放
させるための開放信号(開信号)OPと、バッフル52
Bを閉塞させるための閉塞信号(閉信号)SHと、ダン
パーモータ52Cを停止させるための停止信号SPと、
圧縮機モータ66及びファンモータ67を動作させる動
作信号ST及び動作を終了させる終了信号ENとを総称
したものであるが、以下において開信号OP,閉信号S
H及び動作信号STを合わせて起動信号ONで表し、停
止信号SP及び終了信号ENを合わせて停止信号OFF
で表すことにする。ただし、本発明ではファンモータ6
7として回転数を変化させられるものを使用しているた
め、定常回転数で作動させるときの信号を起動信号ON
とし、高回転数で作動させるときの信号を高速信号UP
として区別しておく。The signal referred to here is an opening signal (open signal) OP for opening the baffle 52B and the baffle 52.
A closing signal (closing signal) SH for closing B, and a stop signal SP for stopping the damper motor 52C,
The operation signal ST for operating the compressor motor 66 and the fan motor 67 and the end signal EN for ending the operation are collectively referred to as an open signal OP and a closed signal S below.
H and the operation signal ST are combined and represented by the start signal ON, and the stop signal SP and the end signal EN are combined and the stop signal OFF
Will be represented by. However, in the present invention, the fan motor 6
Since the one that can change the rotation speed is used as 7, the start signal is the signal when operating at the steady rotation speed.
And the signal when operating at high speed is the high-speed signal UP.
To distinguish.
【0022】前記制御手段55は、R温度設定手段57
で設定された冷蔵設定温度RSと主温度センサ54で検
出された冷蔵室温度Aに基づいて、Rダンパー52の起
動信号ONを出力するとともに冷蔵室温度Aと冷蔵設定
温度RSとの差(AからRSを引いた値のことで以下単
に温度差という)Bを判別する判別部61と、この温度
差B及び外気温度センサ59で検出された外気温度Gに
基づきファジィ推論を行いF温度設定手段58で設定さ
れた冷凍設定温度FS(詳しくは圧縮機モータ66及び
ファンモータ67を起動させるための起動温度FON)
を低下させるように修正する設定温度修正部62と、こ
の設定温度修正部62で修正された修正温度NFに基づ
いてRダンパー52と圧縮機モータ66及びファンモー
タ67を起動させる起動信号ONを出力する信号出力部
63とを備えている。The control means 55 has an R temperature setting means 57.
On the basis of the refrigerating set temperature RS set in step A and the refrigerating room temperature A detected by the main temperature sensor 54, an activation signal ON of the R damper 52 is output and the difference (A) between the refrigerating room temperature A and the refrigerating set temperature RS. The difference between the temperature difference B and the outside air temperature G detected by the outside air temperature sensor 59, and fuzzy inference is performed based on a value obtained by subtracting RS from RS. Refrigeration set temperature FS set at 58 (specifically, starting temperature FON for starting the compressor motor 66 and the fan motor 67)
And outputs a start signal ON for starting the R damper 52, the compressor motor 66, and the fan motor 67 based on the corrected temperature NF corrected by the set temperature correction unit 62. And a signal output section 63 that operates.
【0023】以上の構成に基づき図4のフローチャート
を参照しながら冷蔵室温度制御装置53の動作の流れを
説明する。Based on the above configuration, the flow of operation of the refrigerating compartment temperature control device 53 will be described with reference to the flowchart of FIG.
【0024】まず電源が投入されると、ステップS1で
冷凍設定温度FSを入力するとともに、冷凍設定温度F
Sに2.5℃を加えた値を圧縮機モータ66及びファン
モータ67を起動させるための起動温度FONとし、冷
凍設定温度FSから2.5℃を引いた値を圧縮機モータ
66及びファンモータ67を停止させるための停止温度
FOFFとして取り込む。このため、冷凍室の温度制御
を行うときの温度デファレンシャルFDFは最初は5℃
に設定される。そして、ステップS2で冷蔵設定温度R
Sを入力する。First, when the power is turned on, the freezing set temperature FS is input in step S1 and the freezing set temperature F is set.
A value obtained by adding 2.5 ° C. to S is taken as a starting temperature FON for starting the compressor motor 66 and the fan motor 67, and a value obtained by subtracting 2.5 ° C. from the refrigeration set temperature FS is used as the compressor motor 66 and the fan motor. It is taken as the stop temperature FOFF for stopping 67. Therefore, the temperature differential FDF when controlling the temperature of the freezer is initially 5 ° C.
Is set to. Then, in step S2, the set refrigeration temperature R
Enter S.
【0025】次に、ステップS3で主温度センサ54の
検出温度(即ち冷蔵室温度)Aが冷蔵設定温度RSより
高いか否かを判断し、高ければステップS4へ移行しR
ダンパー52の閉信号SHを出力してステップS3へ復
帰し、高くなければステップS5でRダンパー52の開
信号OPを出力してステップS6へ移行する。Next, at step S3, it is judged whether the temperature A detected by the main temperature sensor 54 (that is, the refrigerating compartment temperature) A is higher than the refrigerating set temperature RS.
The closing signal SH of the damper 52 is output and the process returns to step S3. If not high, the opening signal OP of the R damper 52 is output in step S5 and the process proceeds to step S6.
【0026】このステップS6では、温度デファレンシ
ャルFDFが3℃より高いか否かが判断され、高くなけ
ればステップS3へ復帰し、高ければステップS7で圧
縮機モータ66を起動する起動信号ONを出力し、ステ
ップS8でファンモータ67を起動する起動信号ONを
出力してステップS9へ移行する。In this step S6, it is judged whether or not the temperature differential FDF is higher than 3 ° C. If it is not higher, the process returns to step S3, and if it is higher, the start signal ON for starting the compressor motor 66 is output in step S7. In step S8, a start signal ON for starting the fan motor 67 is output and the process proceeds to step S9.
【0027】ステップS6で温度デファレンシャルFD
Fが3℃より高いか否かを判断するのは、数度にわたる
自動修正によって起動温度FONが冷凍設定温度FS以
下に低下するのを防止するためであり、温度デファレン
シャルが3℃以下になっていれば起動温度FONの修正
を禁止するのである。In step S6, the temperature differential FD is
Whether or not F is higher than 3 ° C is determined in order to prevent the startup temperature FON from lowering to the freezing set temperature FS or lower due to automatic correction over several degrees, and the temperature differential is 3 ° C or lower. Then, the correction of the starting temperature FON is prohibited.
【0028】ステップS9では外気温度Gをサンプリン
グし、ステップS10で冷蔵室温度Aをサンプリングし
てこのAから冷蔵設定温度RSを引いた値を温度差Bと
して取り込んで、ステップS11でこの温度差Bと外気
温度Gとに基づいてファジィ推論を行って起動温度FO
Nの下げ幅Cを決定し、ステップS12で起動温度FO
Nからこの下げ幅Cを引いた値を新しい起動温度FON
(これを修正温度という)として取り込んで、ステップ
S3へ復帰する。In step S9, the outside air temperature G is sampled, in step S10 the refrigerating chamber temperature A is sampled, the value obtained by subtracting the refrigerating set temperature RS from this A is taken in as the temperature difference B, and in step S11 this temperature difference B Fuzzy inference based on the ambient temperature G and the starting temperature FO
The lowering width C of N is determined, and in step S12 the starting temperature FO
The value obtained by subtracting this reduction width C from N is the new starting temperature FON.
(This is referred to as a correction temperature) and it returns to step S3.
【0029】次に、設定温度修正部62におけるファジ
イ推論について説明する。Next, fuzzy inference in the set temperature correction unit 62 will be described.
【0030】まず、温度差Bに対するメンバーシップ関
数を変数〔0.0,3.0〕の区間で(同じ・やや高い
・高い・非常に高い・最も高い)の5通りに正規化し、
外気温度Gに対するメンバーシップ関数を変数〔0.
0,32.5〕の区間で(低い・中・高い)の3通りに
正規化する。また、これらの入力に基づく出力としての
起動温度の下げ幅Cに対するメンバーシップ関数を変数
〔0.0,1.0〕の区間で(非常に小さい・小さい・
やや小さい・普通・やや大きい・大きい・非常に大き
い)の7通りに正規化する。以上のファジイ変数の定義
を示したものが図5である。First, the membership function with respect to the temperature difference B is normalized into five ways (same / slightly high / high / very high / highest) in the interval of the variable [0.0, 3.0],
The membership function for the outside air temperature G is set to the variable [0.
0,32.5] is normalized into three ways (low / medium / high). In addition, the membership function for the decrease C of the starting temperature as an output based on these inputs is (very small / small.
Normalize in 7 ways: small, medium, large, large, and very large. FIG. 5 shows the definition of the above fuzzy variables.
【0031】この起動温度の下げ幅Cを決定するための
制御ルール(1〜15までの15通りのルール)を表1
に示すように定めた。Table 1 shows the control rules (15 rules from 1 to 15) for determining the reduction width C of the starting temperature.
As shown in.
【0032】[0032]
【表1】 [Table 1]
【0033】例えば、温度差Bが「非常に高い」で外気
温度Gが「中」の場合には、ルール9に基づいて下げ幅
Cは「やや大きい」と判定される。また、温度差Bが
「やや高い」で外気温度Gが「高い」の場合には、ルー
ル2に基づいて下げ幅Cは「普通」と判定される。For example, when the temperature difference B is "extremely high" and the outside air temperature G is "medium", the reduction width C is determined to be "slightly large" based on the rule 9. When the temperature difference B is “moderately high” and the outside air temperature G is “high”, the reduction width C is determined to be “normal” based on the rule 2.
【0034】ここで、ファジイ推論の過程を図6及び図
7に従い説明する。ただし、ルールに対してMIN−M
AX法と重心法により結論(すなわち下げ幅C)を求め
るのである。The process of fuzzy inference will be described below with reference to FIGS. 6 and 7. However, MIN-M
The conclusion (that is, the reduction width C) is obtained by the AX method and the center of gravity method.
【0035】例えば、温度差Bが2.4℃で外気温度G
が5.0℃であったときには、図6(a)(b)に示すよう
に、Bとして「非常に高い,0.875」と「最も高
い,0.12」との2通り、Gとして「低い,0.68
75」と「中,0.3125」の2通りの結果がえら
れ、各結果を組み合わせてルール番号9,10,14,
15の計4通りのルールができる。この4つのルールに
対してMIN−MAX法及び重心法によって、図6(c)
に示すように下げ幅C「0.6℃」が推論された。この
とき、冷凍設定温度FSが−18℃であったと仮定すれ
ば、起動温度FONは−15.5℃に初期設定されてい
る。そこで、この起動温度−15.5℃からここで決定
された下げ幅0.6℃を引いた値「−16.1℃」を新
しい起動温度(即ち修正温度)FONとして圧縮機モー
タ66及びファンモータ67の起動を制御するのであ
る。For example, the temperature difference B is 2.4 ° C. and the outside air temperature G is
When the temperature is 5.0 ° C., as shown in FIGS. 6 (a) and 6 (b), two types of B, “very high, 0.875” and “highest, 0.12”, and G, are set. "Low, 0.68
75 "and" medium, 0.3125 "are obtained, and the results are combined and rule numbers 9, 10, 14,
There are 15 different rules in total. By using the MIN-MAX method and the center of gravity method for these four rules, FIG.
As shown in FIG. 3, the decrease width C “0.6 ° C.” was inferred. At this time, assuming that the freezing set temperature FS is -18 ° C, the starting temperature FON is initially set to -15.5 ° C. Therefore, the value "-16.1 ° C" obtained by subtracting the reduction width 0.6 ° C determined here from the starting temperature -15.5 ° C is set as the new starting temperature (that is, the correction temperature) FON, and the compressor motor 66 and the fan. It controls the activation of the motor 67.
【0036】他の例として、温度差Bが0.4℃、外気
温度Gが30.0℃の場合には、図7(a)(b)に示すよ
うに、Bとして「同じ,0.375と「やや高い,0.
625」との2通り、Gとして「高い,0.6875」
と「中,0.3125」との2通りの結果が得られ、各
結果を組み合わせると、ルール番号1,2,6,7の計
4通りのルールができる。この4つのルールに対してM
IN−MAX法及び重心法によって図7(c)に示すよう
に下げ幅C「0.4℃」が推論された。このとき、冷凍
設定温度FSが−21℃であったと仮定すれば、起動温
度FONは−18.5℃に初期設定されている。そこ
で、この起動温度−18.5℃からここで決定された下
げ幅0.4℃を引いた値「−18.9℃」を新しい起動
温度(即ち修正温度)FONとして圧縮機モータ66及
びファンモータ67の起動を制御するのである。As another example, when the temperature difference B is 0.4 ° C. and the outside air temperature G is 30.0 ° C., as shown in FIGS. 7A and 7B, B is "same, 0. 375 and "somewhat high, 0.
625 ”and two as G,“ high, 0.6875 ”
And "middle, 0.3125" are obtained, and when the results are combined, a total of four rules with rule numbers 1, 2, 6, and 7 are created. M for these four rules
By the IN-MAX method and the center of gravity method, the lowering width C “0.4 ° C.” was inferred as shown in FIG. 7 (c). At this time, assuming that the freezing set temperature FS was -21 ° C, the starting temperature FON is initially set to -18.5 ° C. Therefore, the value "-18.9 ° C" obtained by subtracting the reduction width 0.4 ° C determined here from the starting temperature -18.5 ° C is set as the new starting temperature (that is, the correction temperature) FON, and the compressor motor 66 and the fan. It controls the activation of the motor 67.
【0037】尚、このような推論の実行は、汎用のマイ
クロコンピュータやディジタルシグナルプロセッサを利
用することにより実現できる。The execution of such inference can be realized by using a general-purpose microcomputer or digital signal processor.
【0038】[0038]
【発明の効果】本発明によれば、設定温度修正部によ
り、冷蔵室の検出温度(即ち冷蔵室温度)と冷蔵室の設
定温度(即ち冷蔵設定温度)との差及び外気温度に基づ
いて圧縮機及び送風機を起動させるための起動温度を自
動的に低下させるように修正するので、圧縮機及び送風
機が従来よりも早目に起動する関係上、冷蔵室の温度変
化や負荷変動及び冷蔵庫の周囲状況を加味した冷蔵室の
冷気量制御が可能となる。このため、扉開閉操作や食品
投入による冷蔵室の温度上昇を抑制し、食品の品温が上
昇することを防止して食品の品質維持を図り、冷蔵室の
安定した温度制御が行え、かつ、無駄な電力消費がなく
なる。According to the present invention, the set temperature correction unit compresses the temperature on the basis of the difference between the detected temperature of the refrigerating room (ie, the refrigerating room temperature) and the set temperature of the refrigerating room (ie, the refrigerating set temperature) and the outside air temperature. Since the start-up temperature for starting the fan and blower will be automatically lowered, the compressor and blower will start earlier than before. It is possible to control the amount of cold air in the refrigerating room in consideration of the situation. Therefore, the temperature rise in the refrigerating compartment due to door opening / closing operation or food feeding is suppressed, the product temperature is prevented from rising and the quality of the food is maintained, and stable temperature control of the refrigerating compartment can be performed, and Useless power consumption is eliminated.
【図1】本発明の冷蔵室温度制御装置を示すブロック回
路図である。FIG. 1 is a block circuit diagram showing a refrigerating compartment temperature control device of the present invention.
【図2】冷蔵庫の扉を開いた状態の外観斜視図である。FIG. 2 is an external perspective view of the refrigerator with the door open.
【図3】冷蔵庫の扉を外した状態を示す斜視図である。FIG. 3 is a perspective view showing a state in which a door of the refrigerator is removed.
【図4】冷蔵室温度制御装置の制御動作を示すフローチ
ャート図である。FIG. 4 is a flowchart showing a control operation of the refrigerating compartment temperature control device.
【図5】ファジイ変数の定義を示す線図である。FIG. 5 is a diagram showing the definition of fuzzy variables.
【図6】ファジイ推論の過程の一例を示す線図である。FIG. 6 is a diagram showing an example of a process of fuzzy inference.
【図7】図6とは異なる例を示す線図である。FIG. 7 is a diagram showing an example different from FIG.
1 冷蔵庫 15 冷蔵室 52 冷気制御装置(Rダンパー) 53 冷蔵室温度制御装置 54 冷蔵室温度センサ(主温度センサ) 57 冷蔵室温度設定手段 58 冷凍室温度設定手段 59 外気温度センサ 60 制御手段 61 判別部 62 設定温度修正部 63 信号出力部 1 Refrigerator 15 Refrigerating Room 52 Cold Air Control Device (R Damper) 53 Refrigerating Room Temperature Controller 54 Refrigerating Room Temperature Sensor (Main Temperature Sensor) 57 Refrigerating Room Temperature Setting Means 58 Freezing Room Temperature Setting Means 59 Outside Air Temperature Sensor 60 Control Means 61 Discrimination Part 62 set temperature correction part 63 signal output part
Claims (1)
と、冷却器に冷媒を供給する圧縮機と、冷却器で冷却さ
れた冷気を冷蔵室及び冷凍室へ循環させる送風機と、前
記冷気を冷蔵室へ導くダクトと、このダクトに配置され
冷気量を制御する冷気制御装置と、この冷気制御装置と
前記圧縮機及び送風機の動作を制御する温度制御装置と
を備えた冷蔵庫において、前記温度制御装置は、冷蔵室
の温度を設定する冷蔵温度設定手段と、冷凍室の温度を
設定する冷凍温度設定手段と、冷蔵室の温度を検出する
冷蔵室温度センサと、外気の温度を検出する外気温度セ
ンサと、前記冷気制御装置と圧縮機及び送風機の動作を
制御する信号を出力する制御手段とを有し、この制御手
段は、前記冷蔵温度設定手段で設定された冷蔵設定温度
と前記冷蔵室温度センサで検出された冷蔵室温度との差
及び外気温度センサで検出された外気温度に基づいて前
記冷凍温度設定手段で設定された冷凍設定温度を修正す
る設定温度修正部と、この設定温度修正部で修正された
修正温度に基づいて前記冷気制御装置と圧縮機及び送風
機を起動する起動信号を出力する信号出力部とを備えた
ことを特徴とする冷蔵庫の温度制御装置。1. A refrigerating chamber and a freezing chamber defined in a refrigerator, a compressor that supplies a refrigerant to a cooler, a blower that circulates the cool air cooled by the cooler to the refrigerating chamber and the freezing chamber, and the cool air. In a refrigerator equipped with a duct for guiding the cold air to the refrigerating chamber, a cold air control device arranged in the duct for controlling the amount of cold air, and a temperature control device for controlling the operation of the cold air control device and the compressor and the blower, The control device includes a refrigerating temperature setting means for setting the temperature of the refrigerating compartment, a freezing temperature setting means for setting the temperature of the freezing compartment, a refrigerating compartment temperature sensor for detecting the temperature of the refrigerating compartment, and an outside air for detecting the temperature of the outside air. It has a temperature sensor and a control means for outputting a signal for controlling the operation of the cold air control device and the compressor and the blower, and the control means includes the refrigerating set temperature set by the refrigerating temperature setting means and the refrigerating chamber. Temperature And a set temperature correction unit for correcting the refrigerating set temperature set by the freezing temperature setting means based on the difference between the temperature of the refrigerating room detected by the sensor and the outside air temperature detected by the outside air temperature sensor, and this set temperature correction unit. A temperature control device for a refrigerator, comprising: the cold air control device, and a signal output unit that outputs a start signal for starting the compressor and the blower based on the corrected temperature corrected by the above.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2673692A JP3197593B2 (en) | 1992-02-13 | 1992-02-13 | Refrigerator temperature controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2673692A JP3197593B2 (en) | 1992-02-13 | 1992-02-13 | Refrigerator temperature controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05223427A true JPH05223427A (en) | 1993-08-31 |
JP3197593B2 JP3197593B2 (en) | 2001-08-13 |
Family
ID=12201594
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2673692A Expired - Fee Related JP3197593B2 (en) | 1992-02-13 | 1992-02-13 | Refrigerator temperature controller |
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JP (1) | JP3197593B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007278659A (en) * | 2006-04-11 | 2007-10-25 | Matsushita Electric Ind Co Ltd | Refrigerator |
JP2009115337A (en) * | 2007-11-02 | 2009-05-28 | Mitsubishi Electric Corp | Refrigerator-freezer |
CN113418351A (en) * | 2021-07-27 | 2021-09-21 | 河南新飞制冷器具有限公司 | Control method for judging food quantity for refrigerator |
CN116105423A (en) * | 2023-03-02 | 2023-05-12 | 湖南绿零智能科技股份有限公司 | Intelligent detection device and control system for refrigerator |
-
1992
- 1992-02-13 JP JP2673692A patent/JP3197593B2/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007278659A (en) * | 2006-04-11 | 2007-10-25 | Matsushita Electric Ind Co Ltd | Refrigerator |
JP2009115337A (en) * | 2007-11-02 | 2009-05-28 | Mitsubishi Electric Corp | Refrigerator-freezer |
JP4684279B2 (en) * | 2007-11-02 | 2011-05-18 | 三菱電機株式会社 | Freezer refrigerator |
CN113418351A (en) * | 2021-07-27 | 2021-09-21 | 河南新飞制冷器具有限公司 | Control method for judging food quantity for refrigerator |
CN116105423A (en) * | 2023-03-02 | 2023-05-12 | 湖南绿零智能科技股份有限公司 | Intelligent detection device and control system for refrigerator |
CN116105423B (en) * | 2023-03-02 | 2023-11-03 | 湖南绿零智能科技股份有限公司 | Intelligent detection device and control system for refrigerator |
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