JP3110471B2 - Refrigeration quenching control device - Google Patents

Refrigeration quenching control device

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Publication number
JP3110471B2
JP3110471B2 JP1435291A JP1435291A JP3110471B2 JP 3110471 B2 JP3110471 B2 JP 3110471B2 JP 1435291 A JP1435291 A JP 1435291A JP 1435291 A JP1435291 A JP 1435291A JP 3110471 B2 JP3110471 B2 JP 3110471B2
Authority
JP
Japan
Prior art keywords
quenching
temperature
food
damper
air
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.)
Expired - Fee Related
Application number
JP1435291A
Other languages
Japanese (ja)
Other versions
JPH04254180A (en
Inventor
卓郎 倉掛
Original Assignee
松下冷機株式会社
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Filing date
Publication date
Application filed by 松下冷機株式会社 filed Critical 松下冷機株式会社
Priority to JP1435291A priority Critical patent/JP3110471B2/en
Publication of JPH04254180A publication Critical patent/JPH04254180A/en
Application granted granted Critical
Publication of JP3110471B2 publication Critical patent/JP3110471B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0665—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the top
    • 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
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/803—Bottles
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/28—Quick cooling
    • 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
    • F25D2500/00—Problems to be solved
    • F25D2500/04—Calculation of parameters
    • 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
    • F25D2700/121—Sensors measuring the inside temperature of particular compartments
    • 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
    • F25D2700/16—Sensors measuring the temperature of products

Landscapes

  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Feedback Control In General (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は食品などを短時間で適温
まで冷やすために経験則を基にした急冷制御装置の制御
ルールと、それを構成するファジィ変数のメンバーシッ
プ関数とによって最適な急冷ファンとダンパーとの操作
量を推論して、その結果を出力するようにした冷蔵庫の
急冷制御装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quenching control system based on empirical rules for cooling food and the like to an appropriate temperature in a short time, and an optimal quenching function based on membership functions of fuzzy variables constituting the quenching control device. The present invention relates to a refrigerator quenching control device that infers an operation amount of a fan and a damper and outputs the result.

【０００２】[0002]

【従来の技術】冷蔵庫（冷凍冷蔵庫も含む）は食品など
の貯蔵を基本機能とするものであるが、近年では更に付
加機能を持たせたものが現われ始めた。その付加機能の
一つが急速冷蔵（以下急冷と省略する）である。この急
冷は必要に応じて食品を適温になるまで冷やすもので例
えば「急なお客さんでビールを大至急冷やしたい」や
「サラダを早く冷やして食事したい」などの時に利用で
き、また生鮮食料品などの新鮮さをそのままスピード保
存ができるなどの利点が有る。2. Description of the Related Art Refrigerators (including refrigerators) have a basic function of storing foods and the like, but in recent years, refrigerators having additional functions have begun to appear. One of the additional functions is rapid refrigeration (hereinafter abbreviated as rapid cooling). This quenching cools the food to the appropriate temperature as needed, and can be used when, for example, "I want to cool beer very quickly with a sudden customer" or "I want to cool the salad quickly and eat". There is an advantage that freshness such as can be saved as it is at a speed.

【０００３】従来の冷蔵庫の急冷制御装置では、例えば
特開昭６３−１１８５８４号公報に示されるような方法
がある。ここでは急冷指令（たとえばスイッチオンな
ど）によって急冷を開始すると、あらかじめ設定された
時間の間、常にダンパーを開放にし、ファンで急冷室に
冷気を送り続けるものであった。しかしこのように急冷
動作を時間にのみ依存して制御する方法では、過冷却が
生じるために例えばビール瓶が破裂したり、他の食品で
は凍結して品質が劣化するなどの問題が有った。A conventional quenching control device for a refrigerator includes a method disclosed in, for example, JP-A-63-118584. Here, when quenching is started by a quenching command (for example, switch-on), the damper is always opened for a preset time, and the fan continues to send cool air to the quenching chamber. However, such a method of controlling the quenching operation depending only on time has a problem that, for example, a beer bottle is ruptured due to overcooling, and other foods are frozen to deteriorate the quality.

【０００４】この過冷却を解決するためには、例えば特
開昭６３−１８９７６０号公報に示されるような方法が
ある。即ち急冷状態においてはダンパーを用いて急冷室
を通常より低い温度に設定し、なおかつファンを用いて
内部の冷気を強制循環させ食品を冷却すると共に、その
食品の表面温度を非接触（例えば赤外線センサー）で測
定し、その表面温度がある一定温度に冷えると、急冷動
作を停止させるものであった。[0004] In order to solve this supercooling, there is a method disclosed in, for example, JP-A-63-189760. That is, in the quenching state, the quenching chamber is set at a lower temperature than usual by using a damper, and the inside of the chilled air is forcibly circulated using a fan to cool the food, and the surface temperature of the food is not contacted (for example, infrared sensor) ), And when the surface temperature is cooled to a certain temperature, the rapid cooling operation is stopped.

【０００５】[0005]

【発明が解決しようとする課題】しかしこのような構成
では、急冷中は常に一定の冷却能力で冷却しているた
め、例えば目標とする表面温度で急冷動作を中止したと
してもその余韻で更に冷却が進み目標とする温度より低
い温度となってしまう（一般に言うオーバーシュートの
状態となる）。しかも急冷終了後は一般の温度制御しか
しないために、一度低下した温度はなかなかもとの温度
には戻らない。However, in such a configuration, cooling is always performed at a constant cooling capacity during rapid cooling. Therefore, even if the rapid cooling operation is stopped at a target surface temperature, for example, further cooling is performed after the cooling. And the temperature becomes lower than the target temperature (overshoot state generally called). In addition, after quenching is completed, since only ordinary temperature control is performed, the once lowered temperature does not return to the original temperature.

【０００６】この場合、ビール瓶が破裂するなどの最悪
状態は避けられるが、やはり過冷却を生じ、なおかつそ
の低温状態がしばらく続くために、食品が凍結するなど
して品質が劣化する恐れは十分にある。また食品として
は最適な温度より低くなっているためにその食品の持つ
風味や味を損ねることとなる。またこれを防止するには
例えば、目標とする表面温度を高めに設定するなどが考
えられるが、この場合は逆に冷却不足が生じ、表面のみ
冷えて中身が冷えていないために同じくその食品の持つ
風味や味を損ねることとなるという課題を有していた。[0006] In this case, the worst condition such as bursting of the beer bottle can be avoided. However, since the supercooling still occurs and the low temperature condition continues for a while, there is a sufficient risk that the quality of the food will be degraded due to freezing. is there. Further, since the temperature of the food is lower than the optimum temperature, the flavor and taste of the food are impaired. In order to prevent this, for example, it is conceivable to set a higher target surface temperature, but in this case, conversely, insufficient cooling occurs, and only the surface is cooled and the contents are not cooled. There was a problem that the flavor and taste of the food would be impaired.

【０００７】本発明は上記課題に鑑み、食品が凍結する
などして品質が劣化したり、食品の持つ風味や味を損ね
ることが無く、しかも短時間で目標温度に到達できる冷
蔵庫の急冷制御装置を提供することを目的とする。SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a rapid cooling control device for a refrigerator that can reach a target temperature in a short time without deteriorating quality due to freezing of the food or deteriorating the flavor or taste of the food. The purpose is to provide.

【０００８】[0008]

【課題を解決するための手段】上記目的を達成するため
に本発明の冷蔵庫の急冷制御装置は、急冷室に入れられ
た食品などの温度を検出する食品温度検出手段と、前期
急冷室の空気の温度を検出する第１の空気温度検出手段
と第２の空気温度検出手段と前期第１の空気温度検出手
段と第２の空気温度検出手段の出力の差の変化量を出力
する微分手段と、前記食品温度検出手段の出力と前記微
分手段の出力の情報に対し、急冷ファンとダンパーとの
操作量を求めるための経験則に基づく制御ルールを記憶
するメモリ装置と、前記食品温度検出手段の出力と前記
微分手段の出力の情報と前記メモリ装置から取り出され
た制御ルールに基づいて、ファジィ論理演算を行ない前
記急冷ファンと前記ダンパーとの操作量を演算するファ
ジィ推論手段とを備えることを特徴としている。In order to achieve the above object, a quenching control device for a refrigerator according to the present invention comprises a food temperature detecting means for detecting a temperature of food or the like put in a quenching room, and an air in the quenching room. A first air temperature detecting means for detecting the temperature of the first air temperature, a second air temperature detecting means, and a differentiating means for outputting a change amount of a difference between outputs of the first air temperature detecting means and the second air temperature detecting means. A memory device that stores a control rule based on an empirical rule for obtaining an operation amount of the quenching fan and the damper with respect to information on the output of the food temperature detecting means and the output of the differentiating means; Fuzzy inference means for performing a fuzzy logic operation and calculating an operation amount of the quenching fan and the damper based on an output, information on an output of the differentiating means, and a control rule extracted from the memory device. It is characterized in that to obtain.

【０００９】[0009]

【作用】本発明は上記構成により、食品温度検出手段に
よって検知された食品温度と急冷室の空気温度の変化量
に対する急冷ファンとダンパーとの操作量を、経験則か
ら求めた制御ルールに基づいて演算しているので、急冷
している食品の状態、例えば急冷し始めた頃や急冷終了
直前の場合などでその時に応じた最適な冷却を急冷ファ
ンとダンパーで行なうので常に最適な冷却能力で食品を
冷却することができるので、過冷却や冷却不足を防ぐこ
とができる。According to the present invention, the amount of operation of the quenching fan and the damper with respect to the amount of change between the food temperature detected by the food temperature detecting means and the air temperature in the quenching chamber is based on a control rule obtained from an empirical rule. Since the calculation is performed, the quenching fan and damper perform optimal cooling according to the state of the rapidly cooled food, for example, when quenching starts or immediately before the end of quenching, so that the food always has the optimal cooling capacity. Can be cooled, so that overcooling or insufficient cooling can be prevented.

【００１０】[0010]

【実施例】以下本発明の一実施例の冷蔵庫の急冷制御装
置について図面を参照しながら説明する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a quenching control device for a refrigerator according to an embodiment of the present invention.

【００１１】まず本発明の概略構成について図２を用い
て説明する。図２は本発明の冷蔵庫の断面図である。図
２において、１は冷蔵庫本体で、外箱２と内箱３と両者
の空隙に形成されたウレタン発泡断熱材４により構成さ
れ、前面開口部に３つのドア５、６、７が配設されてい
る。ドア５、６、７はそれぞれ冷蔵庫本体１の冷凍室
８、冷蔵室９、野菜室１０の開口部に対応して配設され
ている。First, a schematic configuration of the present invention will be described with reference to FIG. FIG. 2 is a sectional view of the refrigerator of the present invention. In FIG. 2, reference numeral 1 denotes a refrigerator main body, which is composed of an outer box 2, an inner box 3, and a urethane foam insulating material 4 formed in a gap between the two, and three doors 5, 6, 7 are disposed in a front opening. ing. The doors 5, 6, 7 are provided corresponding to the openings of the freezer compartment 8, the refrigerator compartment 9, and the vegetable compartment 10 of the refrigerator body 1, respectively.

【００１２】冷凍室８の底板１１と冷蔵室９の天板１２
に囲まれた区画壁内には蒸発器１３とその背後に庫内フ
ァン１４を有している。また、冷凍室８、冷蔵室９の背
部には、蒸発器１３からの冷却空気を各室に導入するた
めの通風路１５、１６が形成されている。１７は圧縮機
である。１８は冷蔵室９の下部に設けた急冷室である。
急冷室１８は壁１９で冷蔵室９と仕切られており、そ
の開口部にはドア２０が配設されている。また急冷室１
８の背面には蒸発器１３からの冷気を急冷室１８に導入
するための通風路２１が形成されている。The bottom plate 11 of the freezer compartment 8 and the top plate 12 of the refrigerator compartment 9
The evaporator 13 and a fan 14 in the refrigerator are provided behind the evaporator 13 in the partition wall surrounded by. Further, ventilation paths 15 and 16 for introducing cooling air from the evaporator 13 into each chamber are formed at the back of the freezing chamber 8 and the refrigerator compartment 9. 17 is a compressor. Reference numeral 18 denotes a quenching room provided below the refrigeration room 9.
The quenching chamber 18 is separated from the refrigerating chamber 9 by a wall 19, and a door 20 is provided at an opening thereof. In addition, quenching room 1
A ventilation path 21 for introducing cool air from the evaporator 13 into the quenching chamber 18 is formed on the back surface of 8.

【００１３】このように構成された冷蔵庫において、そ
の急冷装置の構成について図１を用いて更に詳しく説明
する。図１は本発明の冷蔵庫の急冷制御装置のブロック
図である。図１において、２２は通風路２１からの冷気
を導入または遮断するためのダンパーである。２３は急
冷室１８内に冷気を導入するための急冷ファンである。
ここで言う冷気には、通風路２１とダンパー２２とを
介して供給される第１の冷気と、壁１９の天面後部に設
けた通風孔２４を介して供給される第２の冷気とがあ
り、第１の冷気は−１８℃程度の冷気であり、第２の冷
気は５℃程度の冷気である。２５は食品２６の表面温度
を検出するための食品温度センサーである。 ２７は食
品温度センサー２５の出力から食品２６の表面温度Ｔを
検出する食品温度検出手段である。３５は急冷室１８の
上部に取り付けた空気温度センサー３４の出力から空気
温度を検出する第１の空気温度検出手段、３７は急冷室
１８の下部に取り付けた空気温度センサー３５の出力か
ら空気温度を検出する第２の空気温度検る出手段であ
る。２８は第１の空気温度検出手段３５の出力と第２の
空気温度検出手段３７の出力の差を微分し急冷室１８の
空気の温度の変化量ΔＡを演算する微分手段である。The structure of the quenching device in the refrigerator having the above-described structure will be described in more detail with reference to FIG. FIG. 1 is a block diagram of a rapid cooling control device for a refrigerator according to the present invention. In FIG. 1, reference numeral 22 denotes a damper for introducing or blocking cold air from the ventilation passage 21. Reference numeral 23 denotes a quenching fan for introducing cool air into the quenching chamber 18.
The cool air referred to here includes the first cool air supplied through the ventilation passage 21 and the damper 22 and the second cool air supplied through the ventilation hole 24 provided at the rear of the top surface of the wall 19. The first cool air is cool air of about -18 ° C, and the second cool air is cool air of about 5 ° C. 25 is a food temperature sensor for detecting the surface temperature of the food 26. 27 is a food temperature detecting means for detecting the surface temperature T of the food 26 from the output of the food temperature sensor 25. 35 is first air temperature detecting means for detecting the air temperature from the output of an air temperature sensor 34 attached to the upper part of the quenching chamber 18, and 37 is the air temperature from the output of the air temperature sensor 35 attached to the lower part of the quenching chamber 18. It is a second air temperature detecting means for detecting. Numeral 28 is a differentiating means for differentiating the difference between the output of the first air temperature detecting means 35 and the output of the second air temperature detecting means 37 to calculate a change ΔA in the temperature of the air in the quenching chamber 18.

【００１４】また２９はマイクロプロセッサで、ファジ
ィ推論手段３０と制御ルールを記憶するメモリ装置３１
とから構成されてる。３２は、ファジィ推論手段３０で
得た操作量の指示に従って、急冷ファン２３の能力（即
ち回転数）を制御する急冷ファン制御手段である。３３
は、ファジィ推論手段３０で得た操作量の指示に従っ
て、ダンパー２２の開閉制御をするダンパー制御手段で
ある。Reference numeral 29 denotes a microprocessor, a fuzzy inference means 30 and a memory device 31 for storing control rules.
It is composed of Reference numeral 32 denotes a quench fan control unit that controls the capacity (that is, the number of revolutions) of the quench fan 23 in accordance with the instruction of the operation amount obtained by the fuzzy inference unit 30. 33
Is damper control means for controlling the opening and closing of the damper 22 in accordance with the instruction of the operation amount obtained by the fuzzy inference means 30.

【００１５】以上のように構成された冷蔵庫の急冷制御
装置について以下図１〜図５を用いてその動作を説明す
る。The operation of the quenching control device for a refrigerator configured as described above will be described below with reference to FIGS.

【００１６】食品温度検出手段２７では食品温度センサ
ー２５の出力から食品２６の表面温度Ｔを検出し、さら
に第１の空気温度検出手段３５では空気温度センサー３
４の出力から急冷室１８の上部の空気温度Ｔ１を検出
し、第２の空気温度検出手段３７では空気温度センサー
３６の出力から急冷室１８の下部の空気温度Ｔ２を検出
して、微分手段２８で空気温度の出力の差Ａ（即ち（数
１））を微分し、The food temperature detecting means 27 detects the surface temperature T of the food 26 from the output of the food temperature sensor 25, and the first air temperature detecting means 35 detects the air temperature sensor 3
4 detects the air temperature T1 in the upper part of the quenching chamber 18 from the output of the quenching chamber 18, and the second air temperature detecting means 37 detects the air temperature T2 in the lower part of the quenching chamber 18 from the output of the air temperature sensor 36. Is used to differentiate the difference A in the output of the air temperature (that is, (Equation 1)),

【００１７】[0017]

【数１】 (Equation 1)

【００１８】急冷室１８の空気温度の変化量ΔＡ（即ち
（数２）ここでｔは時間を、Δｔは時間変化をわす）を
演算する。The amount of change ΔA in the air temperature in the quenching chamber 18 (ie, (Equation 2), where t represents time and Δt represents time change) is calculated.

【００１９】[0019]

【数２】 (Equation 2)

【００２０】以上のように演算された表面温度Ｔ及び空
気温度の変化量ΔＡはファジィ推論手段３０に入力され
る。メモリ装置３１はファジィ推論手段３０で実行され
るファジィ推論に必要な制御ルールを格納している。急
冷ファン２３の操作量である能力（即ち回転数）と、ダ
ンパー２２の操作量である開閉度合いを求めるファジィ
推論は、下記のような制御ルールを基にして実行され
る。The changes in the surface temperature T and the air temperature ΔA calculated as described above are input to the fuzzy inference means 30. The memory device 31 stores control rules required for fuzzy inference executed by the fuzzy inference means 30. The fuzzy inference for obtaining the capacity (ie, the number of revolutions) as the operation amount of the quenching fan 23 and the opening / closing degree as the operation amount of the damper 22 is executed based on the following control rules.

【００２１】本実施例で採用した制御ルールは次のよう
な９ルールである。例えば ルールＲ１：もし食品温度が高く、空気温度の変化量が
正大であれば、急冷ファンを非常に強めかつダンパーを
開けよ ルールＲ２：もし食品温度が低く、空気温度の変化量が
正大であれば、急冷ファンを弱めかつダンパーを閉じよ ・・・等である。The control rules employed in this embodiment are the following nine rules. For example, Rule R1: If the food temperature is high and the change in the air temperature is positive, the quenching fan should be greatly strengthened and the damper opened. Rule R2: If the food temperature is low and the change in the air temperature is positive. Weaken the quenching fan and close the damper.

【００２２】前記言語ルールは、発明者が数多くの実験
データから得た経験則から求めた、急速に冷却したい食
品に最適な急冷ファン及びダンパーの制御に対する制御
ルールであり、これを温度と温度変化量の関係で表に示
すと（表１）、（表２）の通りになる。（表１）、（表
２）はおのおの実施例に使用する急冷ファン、ダンパー
に対する制御ルールの関係を示している。The language rule is a control rule for the control of a quenching fan and a damper, which is optimal for a food to be rapidly cooled, obtained from empirical rules obtained from numerous experimental data. The relationship between the quantities is shown in the table (Table 1) and (Table 2). (Table 1) and (Table 2) show the relationship between the control rules for the quenching fan and the damper used in each embodiment.

【００２３】[0023]

【表１】 [Table 1]

【００２４】[0024]

【表２】 [Table 2]

【００２５】（表１）、（表２）は横方向に食品温度Ｔ
を強度によって３段階（ＬＴ＝低温、ＭＴ＝適温、ＨＴ
＝高温）に分け、縦方向に空気温度の変化量△Ａの強度
によって３段階（ＮＢ＝負大、ＺＯ＝ゼロ、ＰＢ＝正
大）に分けて配置し、上記区分された温度Ｔ、温度変化
量△Ａとのおのおの交わった位置にはその食品温度Ｔ、
空気温度の変化量△Ａの強度に対する最適な急冷ファン
の能力を（表１）に設定し、ダンパーの開度を（表２）
に設定している。ここで（表１）においては急冷ファン
の能力を強度に応じて５段階（ＶＳ＝非常に強、Ｓ＝
強、Ｍ＝中、Ｗ＝弱、ＶＷ＝非常に弱）に分けており、
かつ（表２）においてはダンパーの開度を強度に応じて
３段階（Ｃ＝閉、Ｈ＝半開、Ｏ＝開）に分けている。即
ち前記制御ルールＲｉは（表１）、（表２）における升
目（Ｒｉ）で示されている。Tables 1 and 2 show the food temperature T in the horizontal direction.
In three stages (LT = low temperature, MT = appropriate temperature, HT
= High temperature), the amount of change in the air temperature in the vertical direction △ is arranged in three stages (NB = negative, ZO = zero, PB = positive) according to the intensity of A, and the temperature T and the temperature change The food temperature T, at the intersection of the quantity △ A,
The optimal quench fan capacity for the intensity of the air temperature change ΔA is set in (Table 1) and the damper opening is set in (Table 2).
Is set to Here, in (Table 1), the ability of the quenching fan is classified into five levels (VS = very strong, S =
Strong, M = medium, W = weak, VW = very weak)
In Table 2, the opening degree of the damper is divided into three stages (C = closed, H = half-opened, O = opened) according to the strength. That is, the control rule Ri is indicated by a square (Ri) in (Table 1) and (Table 2).

【００２６】本発明の発明者は（表１）、（表２）にし
たがって急冷ファンの能力、ダンパーの開度を制御した
時、最適な急冷制御が実現できることを実験的に確認し
ている。The inventor of the present invention has experimentally confirmed that optimum quenching control can be realized when the quenching fan capacity and the damper opening are controlled according to (Table 1) and (Table 2).

【００２７】また前記言語ルールは図１のメモリ装置３
１の内に記憶する場合に下記のようなルール則で記憶さ
れている。本発明で使用した制御ルール数は９個であ
る。 ルールＲ１：ＩＦ Ｔ ｉｓ ＨＴ ａｎｄ △Ａ ｉｓ ＰＢ ＴＨＥＮ Ｆ＝ＶＳ ａｎｄ Ｄ＝Ｏ ルールＲ２：ＩＦ Ｔ ｉｓ ＬＴ ａｎｄ △Ａ ｉｓ ＰＢ ＴＨＥＮ Ｆ＝Ｗ ａｎｄ Ｄ＝Ｃ ・・・つぎにファジィ推論手段３０では予めメモリ装置
３１に記憶されている前記制御ルールを取り出してファ
ジィ推論によって急冷ファン２３の操作量である能力及
びダンパー２２の操作量である開度を算出し、急冷ファ
ン制御手段３２及びダンパー制御手段３３に出力する。
急冷ファン制御手段３２は決められた操作量に応じて急
冷ファン２３の能力を制御し、ダンパー制御手段３３は
決められた操作量に応じてダンパー２２の開度を制御す
る。Further, the language rules are stored in the memory device 3 shown in FIG.
When it is stored in one, it is stored according to the following rule. The number of control rules used in the present invention is nine. Rule R1: IF This HT and ΔA is PB THEN F = VS and D = O Rule R2: IF This LT LT and ΔA is PB THEN F = W and D = C... Next, in the fuzzy inference means 30, The control rule previously stored in the memory device 31 is taken out, and the capability as the operation amount of the quenching fan 23 and the opening as the operation amount of the damper 22 are calculated by fuzzy inference, and the quenching fan control means 32 and the damper control means are calculated. 33.
The quenching fan control unit 32 controls the capacity of the quenching fan 23 according to the determined operation amount, and the damper control unit 33 controls the opening of the damper 22 according to the determined operation amount.

【００２８】前記制御ルールＲ１、ルールＲ２・・・ル
ールＲ９のルールは食品温度Ｔ、空気温度の変化量△Ａ
に対する急冷ファン２３の能力及びダンパー２２の開度
を段階的に決めているので、きめ細かな制御を行なう場
合には、前記制御ルールの前件部（ＩＦ部）をどの程度
満たしているかの度合いを算出して、その度合いに応じ
た急冷ファン２３の能力及びダンパー２２の開度を推定
する必要がある。そのため、本実施例では前記度合いを
算出するのにファジィ変数のメンバーシップ関数を利用
している。The rules of the control rules R1, R2,..., R9 are food temperature T, air temperature variation ΔA.
In this case, the ability of the quenching fan 23 and the opening degree of the damper 22 are determined in a stepwise manner, so that in the case of fine control, the degree to which the antecedent part (IF part) of the control rule is satisfied is determined. It is necessary to calculate and estimate the capability of the quenching fan 23 and the opening degree of the damper 22 according to the degree. Therefore, in this embodiment, a membership function of a fuzzy variable is used to calculate the degree.

【００２９】図３（ａ）は食品温度Ｔに対するファジィ
変数ＬＴ、ＭＴ、ＨＴのメンバーシップ関数μＬＴ
（Ｔ）、μＭＴ（Ｔ）、μＨＴ（Ｔ）を示したものであ
り、図３（ｂ）は空気温度の変化量△Ａに対するファジ
ィ変数ＰＢ、ＺＯ、ＮＢのメンバーシップ関数μＰＢ
（△Ａ）、μＺＯ（△Ａ）、μＮＢ（△Ａ）を示したも
のである。FIG. 3A shows the membership function μLT of the fuzzy variables LT, MT and HT with respect to the food temperature T.
(T), μMT (T), and μHT (T). FIG. 3B shows the membership function μPB of the fuzzy variables PB, ZO, and NB with respect to the air temperature variation ΔA.
(△ A), μZO (△ A), and μNB (△ A).

【００３０】ファジィ推論手段３０で実行するファジィ
推論は前記制御ルールＲ１、ルールＲ２・・・ルールＲ
９と図３（ａ）、（ｂ）のメンバーシップ関数とを用い
てファジィ論理演算を行なって操作量の演算を行なう。
推論形式としては合成法にｍａｘ−ｍｉｎ法、−点化法
に高さ法を用いた。以下図４をもとに推論の手順を説明
する。The fuzzy inference executed by the fuzzy inference means 30 is based on the control rules R1, R2,.
9 and the membership functions shown in FIGS. 3A and 3B, a fuzzy logic operation is performed to calculate the manipulated variable.
As the inference format, the max-min method was used for the synthesis method, and the height method was used for the -pointing method. The inference procedure will be described below with reference to FIG.

【００３１】図４は推論手順を示す流れ図である。ＳＴ
ＥＰ１では食品温度検出手段２７で食品温度Ｔｏ、微分
手段２８で空気温度の変化量△Ａｏを算出する。ＳＴＥ
Ｐ２でファジィ推論手段３０によって食品温度Ｔｏと空
気温度の変化量△Ａｏに対するファジィ変数のメンバー
シップ関数を用いて、前記食品温度Ｔｏと空気温度の変
化量△Ａｏにおけるメンバーシップ値の算出を行なう。
ＳＴＥＰ３で、得られたメンバーシップ値が前記９個の
各ルールの前件部をどの程度の度合いかを合成法で算出
する。図４においては食品温度に対するファジィ変数を
Ｘ、空気温度の変化量に対するファジィ変数をＹで示し
ている。 ルールＲ１：（数３）FIG. 4 is a flowchart showing the inference procedure. ST
In EP1, the food temperature detecting means 27 calculates the food temperature To, and the differentiating means 28 calculates the variation ΔAo of the air temperature. STE
In P2, the fuzzy inference means 30 calculates the membership value in the food temperature To and the change amount 空 気 Ao of the air temperature using the fuzzy variable membership function for the change amount △ Ao of the food temperature To and the air temperature.
In STEP 3, the degree of the obtained membership value in the antecedent part of each of the nine rules is calculated by a synthesis method. In FIG. 4, a fuzzy variable for the food temperature is indicated by X, and a fuzzy variable for the change amount of the air temperature is indicated by Y. Rule R1: (Equation 3)

【００３２】[0032]

【数３】 (Equation 3)

【００３３】ルールＲ２：（数４）Rule R2: (Equation 4)

【００３４】[0034]

【数４】 (Equation 4)

【００３５】ルールＲ１（数３）は前記Ｔｏが前記食品
温度Ｔに対する領域ＨＴに入り、かつ前記△Ａｏが前記
空気温度の変化量△Ａに対する領域ＰＢに入るという命
題は、ＴｏがＨＴに入る割合と△ＡｏがＰＢに入る割合
のうち小さい値としての割合で成立すること、故にルー
ルＲ１（数３）の場合の前件部はｈ１の割合で成立する
ことを表わしている。同様にルールＲ２（数４）の場
合、前件部はｈ２の割合で成立することを表わしてい
る。Rule R1 (Equation 3) states that To enters the region HT for the food temperature T and that the △ Ao enters the region PB for the air temperature variation △ A, that To enters the HT. This indicates that the ratio and △ Ao are satisfied at a ratio as a small value among the ratios included in the PB. Therefore, the antecedent in the case of rule R1 (Equation 3) is satisfied at the ratio of h1. Similarly, in the case of rule R2 (Equation 4), it indicates that the antecedent is established at the rate of h2.

【００３６】ＳＴＥＰ４で制御ルールの実行部のメンバ
ーシップ関数によって、食品温度Ｔｏと空気温度の変化
量△Ａにおける急冷ファン及びダンパーの操作量を下記
のようにして求める。急冷ファンの操作量Ｆｏ及びダン
パーの操作量Ｄｏを求めるためには、結論部での定数は
ｈ１、ｈ２・・・ｈ９による加重平均として与えられる
から（数５）の−点化法の１つである高さ法により急冷
ファンの操作量Ｆｏ及びダンパーの操作量Ｄｏがもとま
り急冷ファン制御手段３２及びダンパー制御手段３３に
出力される。In STEP 4, the operation amounts of the quenching fan and the damper at the variation ΔA of the food temperature To and the air temperature are obtained as follows by the membership function of the execution part of the control rule. In order to obtain the operation amount Fo of the quenching fan and the operation amount Do of the damper, the constant in the conclusion part is given as a weighted average by h1, h2... H9. The operation amount Fo of the quenching fan and the operation amount Do of the damper are obtained by the height method, and are output to the quenching fan control means 32 and the damper control means 33.

【００３７】[0037]

【数５】 (Equation 5)

【００３８】次に本実施例を適用した時の急冷動作の一
例について図５を用いて説明する。図５は本実施例の急
冷動作の一例を示すタイミング図である。図５において
（ａ）は急冷ファン２３、（ｂ）はダンパー２２、
（ｃ）は急冷室１８の２点の空気温度の差のおのおのの
時間に対する変化、（ｄ）は食品２６の表面温度のおの
おのの時間に対する変化を示しており、実線は本実施例
の場合であり、破線は従来例の場合を示している。Next, an example of a rapid cooling operation when this embodiment is applied will be described with reference to FIG. FIG. 5 is a timing chart showing an example of the rapid cooling operation of this embodiment. In FIG. 5, (a) is a quenching fan 23, (b) is a damper 22,
(C) shows a change in the air temperature difference between the two points in the quenching chamber 18 with respect to each time, (d) shows a change in the surface temperature of the food 26 with respect to each time, and the solid line shows the case of this embodiment. Yes, the broken line shows the case of the conventional example.

【００３９】従来の急冷制御においては食品表面温度が
目標温度（この場合は５℃）に達するまで（イ点）急冷
ファン２３をオン、ダンパーを開けているので、急冷停
止後も表面温度はその余韻で下がり続け目標温度以下に
オーバーシュートする（ロ点）。しかもその後温度は徐
々に回復し、しばらく時間がかかった後、目標温度に達
する（ハ点）。本実施例の急冷制御の場合、初期の表面
温度が高い場合（ニ点）、空気温度差が大きい場合（チ
点）は急冷ファン２３を非常に強くし、かつダンパー２
２を開放にする事により従来と比べて急速に食品を冷や
すことができる。 あとは食品の表面温度と急冷室の
空気温度の変化量で最適な急冷ファン２３、ダンパー２
２の制御を行なうことにより（ホ点）、（リ点）、従来
より早く目標温度に到達すると共に（ヘ点）、温度のオ
ーバーシュートも少なく抑えられることとなる（ト
点）、（ヌ点）。In the conventional quenching control, the quenching fan 23 is turned on and the damper is opened until the food surface temperature reaches the target temperature (5 ° C. in this case) (point A). It continues to fall with lingering sounds and overshoots below the target temperature (point B). Moreover, the temperature gradually recovers thereafter, and after a while, reaches the target temperature (point C). In the case of the rapid cooling control according to the present embodiment, when the initial surface temperature is high (point D) and when the air temperature difference is large (point D), the quenching fan 23 is made very strong and the damper 2 is used.
By opening 2, food can be cooled more rapidly than before. After that, the optimum quenching fan 23 and damper 2 are selected based on the change in the surface temperature of the food and the air temperature in the quenching chamber.
By performing the control (2) (point E) and (point RE), the target temperature is reached earlier than before (point F), and the overshoot of the temperature can be suppressed to a small extent (point G) and (nu point). ).

【００４０】また万が一食品表面温度が冷え過ぎた場合
においても（表１）、（表２）に示すようにダンパー２
２を閉めたまま、急冷ファン２３を制御するので、通風
孔２４より冷蔵室の冷気（５℃程度）を取り込むことが
できるので過冷却が生じてもいち早く目標温度に到達さ
せることができることとなる。In the event that the food surface temperature is too cold, as shown in (Table 1) and (Table 2),
Since the quenching fan 23 is controlled with the valve 2 closed, the cool air (about 5 ° C.) in the refrigerator compartment can be taken in from the ventilation holes 24, so that the target temperature can be quickly reached even if supercooling occurs. .

【００４１】従って、この実施例では制御パラメータと
して食品２６の表面温度、及び急冷室１８の空気温度差
の変化量を使用しているため急速に冷却したい食品に対
してきめ細かい制御が可能である。Therefore, in this embodiment, since the surface temperature of the food 26 and the amount of change in the air temperature difference of the quenching chamber 18 are used as the control parameters, fine control can be performed on the food to be cooled rapidly.

【００４２】また、制御ルールが人間の経験則から成り
立っているため、急冷制御装置に対して最適な急冷ファ
ン２３の能力、ダンパー２２の開度で制御がでる。その
ために常に最適な冷却能力で食品を冷却できるので、い
ち早く目標とする温度に到達できると共に、過冷却や冷
却不足を防ぐことができ、食品の品質の劣化を防ぐこと
ができる。また通風孔２４を設けることにより、万が一
過冷却をしてしまった場合や、温度の低い食品が入れら
れた場合においても冷蔵室の冷気を循環させることがで
きるため、過冷却に対してもいち早く目標温度に達する
ことができる。Further, since the control rules are based on human empirical rules, control can be performed with the optimal capacity of the quenching fan 23 and the opening degree of the damper 22 for the quenching control device. As a result, the food can always be cooled with the optimal cooling capacity, so that the target temperature can be quickly reached, the overcooling and the insufficient cooling can be prevented, and the deterioration of the quality of the food can be prevented. In addition, by providing the ventilation holes 24, even in the event of supercooling, or in the case where low-temperature food is put in, the cool air in the refrigerator compartment can be circulated, so that it is quicker to supercool. The target temperature can be reached.

【００４３】また食品２６の表面温度を検出して自動的
に制御を行なうので、急冷のスイッチ等を設ける必要が
なく自動的に急冷運転を行なうので、人為的なミスによ
る急冷不足（スイッチの入れ忘れ、重量設定ミスなど）
などが発生することはなく、なおかつコストダウンにも
つながることとなる。Further, since the surface temperature of the food 26 is detected and automatically controlled, the rapid cooling operation is automatically performed without providing a rapid cooling switch or the like. , Weight setting mistake, etc.)
This does not occur, and also leads to cost reduction.

【００４４】[0044]

【発明の効果】以上のように本発明の冷蔵庫の急冷制御
装置は、急冷室に入れられた食品などの温度を検出する
食品温度検出手段と、前期急冷室の空気の温度を検出す
る第１の空気温度検出手段と第２の空気温度検出手段と
前期第１の空気温度検出手段と第２の空気温度検出手段
の出力の差の変化量を出力する微分手段と、前記食品温
度検出手段の出力と前記微分手段の出力の情報に対し、
急冷ファンとダンパーとの操作量を求めるための経験則
に基づく制御ルールを記憶するメモリ装置と前期食品温
度検出手段の出力と前記微分手段の出力の情報と前記メ
モリ装置から取り出された制御ルールに基づいて、ファ
ジィ論理演算を行ない前記急冷ファンと前記ダンパーと
の操作量を演算するファジィ推論手段とを備えることに
より、食品温度検出手段によって検知された急冷室の空
気温度の変化量に対する急冷ファンとダンパーとの操作
量を、経験則から求めた制御ルールに基づいて演算して
いるので、急冷している食品の状態、例えば急冷し始め
た頃や急冷終了直前の場合などでその時に応じた最適な
冷却を急冷ファンとダンパーで行なうので常に最適な冷
却能力で食品を冷却することができるので、過冷却や冷
却不足を防ぐことができると共に短時間で食品の冷却が
可能である。As described above, the quenching control device for a refrigerator according to the present invention comprises a food temperature detecting means for detecting the temperature of food or the like placed in a quenching chamber and a first means for detecting the temperature of air in the quenching chamber. An air temperature detecting means, a second air temperature detecting means, a differentiating means for outputting a change amount of a difference between outputs of the first air temperature detecting means and the second air temperature detecting means, and a food temperature detecting means. For the output and the output information of the differentiating means,
A memory device that stores a control rule based on an empirical rule for obtaining an operation amount of the quenching fan and the damper, an output of the food temperature detecting unit, information of an output of the differentiating unit, and a control rule extracted from the memory device. A quenching fan for performing a fuzzy logic operation and calculating fuzzy inference means for calculating an operation amount of the damper; and a quenching fan for a change amount of the air temperature of the quenching chamber detected by the food temperature detecting means. Since the amount of operation with the damper is calculated based on the control rules obtained from empirical rules, it is optimal according to the state of the rapidly cooled food, for example, when quenching started or immediately before the end of quenching Prevents overcooling and undercooling because the food can always be cooled with the optimum cooling capacity by performing rapid cooling with a quenching fan and damper It is possible for food cooling in a short time it is possible.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の一実施例の冷蔵庫の急冷制御装置のブ
ロック図FIG. 1 is a block diagram of a quenching control device for a refrigerator according to an embodiment of the present invention.

【図２】本発明の一実施例の冷蔵庫の断面図FIG. 2 is a sectional view of a refrigerator according to one embodiment of the present invention.

【図３】（ａ）は食品温度Ｔに対するファジィ変数Ｌ
Ｔ、ＭＴ、ＨＴのメンバーシップ関数を示した特性図 （ｂ）は空気温度の変化量△Ａに対するファジィ変数Ｐ
Ｂ、ＺＯ、ＮＢのメンバーシップ関数を示した特性図FIG. 3A shows a fuzzy variable L with respect to a food temperature T;
A characteristic diagram showing membership functions of T, MT, and HT (b) is a fuzzy variable P with respect to an air temperature variation ΔA.
Characteristic diagram showing membership functions of B, ZO, and NB

【図４】推論手順を示す流れ図FIG. 4 is a flowchart showing an inference procedure.

【図５】 （ａ）は急冷ファンのタイミングチャート （ｂ）はダンパーのタイミングチャート （ｃ）は２点の空気温度差のタイミングチャート （ｄ）は食品表面温度のタイミングチャート5A is a timing chart of a quenching fan, FIG. 5B is a timing chart of a damper, FIG. 5C is a timing chart of an air temperature difference between two points, and FIG. 5D is a timing chart of a food surface temperature.

【符号の説明】[Explanation of symbols]

１８ 急冷室 ２２ ダンパー ２３ 急冷ファン ２７ 食品温度検出手段 ２８ 微分手段 ３０ ファジィ推論手段 ３１ メモリ装置 ３２ 急冷ファン制御手段 ３３ ダンパー制御手段 ３５ 第１の空気温度検出手段 ３７ 第２の空気温度検出手段 REFERENCE SIGNS LIST 18 quenching chamber 22 damper 23 quenching fan 27 food temperature detecting means 28 differentiating means 30 fuzzy inference means 31 memory device 32 quenching fan controlling means 33 damper controlling means 35 first air temperature detecting means 37 second air temperature detecting means

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 冷蔵庫の一部に設けられた急冷室と、前
記急冷室に風を送るための急冷ファンと、前記急冷室に
低温の空気を送るためのダンパーと、前記急冷室に入れ
られた食品などの温度を検出する食品温度検出手段と、
前期急冷室の空気の温度を検出する第１の空気温度検出
手段と第２の空気温度検出手段と前期第１の空気温度検
出手段と第２の空気温度検出手段の出力の差の変化量を
出力する微分手段と、前記食品温度検出手段の出力と前
記微分手段の出力の情報に対し、前記急冷ファンと前記
ダンパーとの操作量を求めるための経験則に基づく制御
ルールを記憶するメモリ装置と、前記食品温度検出手段
の出力と前記微分手段の出力の情報と前記メモリ装置か
ら取り出された制御ルールに基づいて、ファジィ論理演
算を行ない前記急冷ファンと前記ダンパーとの操作量を
演算するファジィ推論手段とを備えることを特徴とする
冷蔵庫の急冷制御装置。1. A quenching chamber provided in a part of a refrigerator, a quenching fan for sending air to the quenching chamber, a damper for sending low-temperature air to the quenching chamber, Food temperature detecting means for detecting the temperature of the food or the like,
The amount of change in the difference between the outputs of the first air temperature detecting means, the second air temperature detecting means, and the first air temperature detecting means and the second air temperature detecting means for detecting the temperature of the air in the quenching chamber is determined. A differentiating means for outputting, and a memory device for storing a control rule based on an empirical rule for obtaining an operation amount of the quenching fan and the damper with respect to information on the output of the food temperature detecting means and the output of the differentiating means. A fuzzy inference for performing a fuzzy logic operation to calculate an operation amount of the quenching fan and the damper based on information of an output of the food temperature detecting means, information of an output of the differentiating means, and a control rule retrieved from the memory device. Means for controlling quenching of a refrigerator.
JP1435291A 1991-02-05 1991-02-05 Refrigeration quenching control device Expired - Fee Related JP3110471B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1435291A JP3110471B2 (en) 1991-02-05 1991-02-05 Refrigeration quenching control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1435291A JP3110471B2 (en) 1991-02-05 1991-02-05 Refrigeration quenching control device

Publications (2)

Publication Number Publication Date
JPH04254180A JPH04254180A (en) 1992-09-09
JP3110471B2 true JP3110471B2 (en) 2000-11-20

Family

ID=11858678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1435291A Expired - Fee Related JP3110471B2 (en) 1991-02-05 1991-02-05 Refrigeration quenching control device

Country Status (1)

Country Link
JP (1) JP3110471B2 (en)

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CN101093125B (en) * 2006-06-23 2011-06-08 海尔集团公司 Icebox with temperature tunable clapboard, snapchill cabinet and switchable air , and control method
CN101093126B (en) * 2006-06-23 2011-11-02 海尔集团公司 Icebox with temperature tunable clapboard, and having snapchill cabinet, and control method
CN101093124B (en) * 2006-06-23 2011-11-02 海尔集团公司 Icebox without temperature tunable clapboard, and having snapchill cabinet and air return port turnable to open /close positiones, and control method
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