JP3483763B2

JP3483763B2 - Refrigerator control method

Info

Publication number: JP3483763B2
Application number: JP11727898A
Authority: JP
Inventors: 啓明朝倉; 稔天明; 敦楠
Original assignee: Toshiba Corp; Toshiba Digital Media Engineering Corp
Current assignee: Toshiba Corp; Toshiba Development and Engineering Corp
Priority date: 1998-04-27
Filing date: 1998-04-27
Publication date: 2004-01-06
Anticipated expiration: 2018-04-27
Also published as: JPH11304332A

Description

Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、冷気を循環させて
冷蔵室などの冷蔵温度帯や冷凍室などの冷凍温度帯を冷
却する場合における冷蔵庫の制御方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a refrigerator in which cold air is circulated to cool a refrigerating temperature zone such as a refrigerator compartment or a freezing temperature zone such as a freezer compartment.

【０００２】[0002]

【従来の技術】従来の冷気循環式の冷凍冷蔵庫として
は、図１０（ａ）、（ｂ）に示すものがある。図示の冷
蔵庫はミッドフリーザータイプと呼ばれるもので、大き
く分けて４室に仕切られている。上から冷蔵室１２６、
第１冷凍室１２８ａ、第２冷凍室１２８ｂ、野菜室１３
０で構成されている。Ｐ／Ｃはパーシャルチルド室であ
り、冷蔵室１２６の一部を構成している。なお、以下、
第１冷凍室１２８ａ、第２冷凍室１２８ｂを含めて冷凍
室１２８とする。2. Description of the Related Art As a conventional cold air circulation type refrigerator / freezer, there is one shown in FIGS. 10 (a) and 10 (b). The refrigerator shown is called a mid-freezer type, and is divided into four rooms. Refrigerating room 126,
First freezer compartment 128a, second freezer compartment 128b, vegetable compartment 13
It consists of zero. P / C is a partial chilled chamber and constitutes a part of the refrigerating chamber 126. In addition, below,
The first freezing room 128a and the second freezing room 128b are collectively referred to as a freezing room 128.

【０００３】１３２、１３４は冷凍サイクルにおける圧
縮機と蒸発器であり、１３６は蒸発器１３４で冷却され
た冷気を庫内に循環させるファンである。また、１３８
は、冷蔵室１２６、野菜室１３０への冷気の流れを制御
するモータダンパである。Reference numerals 132 and 134 denote a compressor and an evaporator in the refrigeration cycle, and 136 denotes a fan for circulating the cool air cooled by the evaporator 134 in the refrigerator. Also, 138
Is a motor damper that controls the flow of cold air to the refrigerator compartment 126 and the vegetable compartment 130.

【０００４】冷蔵室１２６へはダクトで冷気を分配し、
冷蔵室温度センサ検出値によりダクト中のモータダンパ
１３８の開閉を制御することで、冷気の流れを制御する
ようになっている。The cold air is distributed to the refrigerating compartment 126 by a duct,
The flow of cold air is controlled by controlling the opening and closing of the motor damper 138 in the duct based on the detected value of the refrigerating room temperature sensor.

【０００５】冷凍室１２８の温度センサの検出温度が上
限設定値に到達すると圧縮機１３２が運転を開始して冷
凍サイクルが働き、冷気を庫内に循環させるファン１３
６も連動して回転する。冷蔵室１２６の冷却も必要な場
合はモータダンパ１３８が開き、冷蔵室１２６へも冷気
が分配される。冷凍室１２８の温度センサの検出温度が
下限設定値に到達すると冷凍サイクルとファン１３６も
停止する。When the temperature detected by the temperature sensor of the freezer compartment 128 reaches the upper limit set value, the compressor 132 starts operating and the refrigerating cycle operates to circulate cool air in the fan 13.
6 also rotates in conjunction. When it is necessary to cool the refrigerating compartment 126, the motor damper 138 is opened and cold air is distributed to the refrigerating compartment 126. When the temperature detected by the temperature sensor in the freezer compartment 128 reaches the lower limit set value, the refrigeration cycle and the fan 136 also stop.

【０００６】冷蔵室１２６への冷気の流れを制御するモ
ータダンパ１３８は冷凍サイクルが停止するか、冷蔵室
温度センサの検出温度が下限設定値に到達すると閉じる
ようになっている。この時、冷蔵室温度センサの検出温
度が下限設定値に到達していなくても冷凍サイクルは停
止する。The motor damper 138 for controlling the flow of cold air to the refrigerating compartment 126 is closed when the refrigerating cycle is stopped or the temperature detected by the refrigerating compartment temperature sensor reaches the lower limit set value. At this time, the refrigeration cycle is stopped even if the temperature detected by the refrigerating compartment temperature sensor has not reached the lower limit set value.

【０００７】冷蔵室１２６への冷気の流れは、冷凍室１
２８への冷気の流れに従属するため、冷蔵室１２６の冷
却は冷凍室１２８の冷却よりも短時間で冷却が終了する
ように設定されている。The flow of cold air into the refrigerating compartment 126 is as follows:
Since it depends on the flow of cold air to 28, the cooling of the refrigerating chamber 126 is set so that the cooling is completed in a shorter time than the cooling of the freezing chamber 128.

【０００８】しかし、冷凍室１２８よりも冷蔵室１２６
の負荷が大きい場合、冷凍室１２８の温度設定が高い、
冷蔵室１２６の扉開閉が多い、食品を入れた等の場合、
冷蔵室１２６が冷却しきらない前に冷凍サイクルが停止
する可能性がある。そのため、庫内の温度変動が大き
く、逸早く検出温度を設定温度範囲内にすることができ
なかった。However, the refrigerating chamber 126 is more than the freezing chamber 128.
When the load of is large, the temperature setting of the freezer compartment 128 is high,
If you often open and close the door of the refrigerator compartment 126
The refrigeration cycle may be stopped before the refrigerating compartment 126 is completely cooled. Therefore, the temperature inside the refrigerator fluctuates so much that the detected temperature cannot be quickly set within the set temperature range.

【０００９】また、冷凍室１２８冷却用の冷気を冷蔵室
１２６に分配している関係上、冷蔵室１２６の温度に対
して低い温度の冷気が冷蔵室１２６へ吹き出される。そ
のため、冷蔵室１２６の吹出口付近の食品が凍結するお
それがあり、低温の冷気を少量吹き出すため、冷蔵室１
２６内の温度分布が悪くなる傾向があった。Further, since the cold air for cooling the freezing compartment 128 is distributed to the refrigerating compartment 126, cold air having a temperature lower than the temperature of the refrigerating compartment 126 is blown into the refrigerating compartment 126. Therefore, the food near the outlet of the refrigerating compartment 126 may be frozen, and a small amount of low-temperature cold air is blown out.
The temperature distribution in 26 tended to be worse.

【００１０】また、蒸発器１３４では、冷蔵室１２６の
冷却に必要以上の低温の冷気を作るために、蒸発器１３
４での冷媒蒸発温度、圧力は低くなり、冷凍サイクルの
効率が悪いポイントで運転する必要があった。さらに、
冷蔵室１２６から蒸発器１３４に戻る温度の高い空気を
低い温度に蒸発器１３４で冷却するため、蒸発器１３４
に霜が多量に付着し、除霜を定期的に行なう必要があっ
た。Further, in the evaporator 134, in order to produce cold air having a temperature lower than necessary for cooling the refrigerating chamber 126, the evaporator 13
The refrigerant evaporation temperature and pressure in 4 were low, and it was necessary to operate at a point where the efficiency of the refrigeration cycle was poor. further,
Since the high temperature air returning from the refrigerating chamber 126 to the evaporator 134 is cooled to a low temperature by the evaporator 134, the evaporator 134
A large amount of frost adhered to it, and it was necessary to perform defrosting regularly.

【００１１】[0011]

【発明が解決しようとする課題】かかる従来の冷蔵庫に
あっては、以下に示すような問題点があった。The conventional refrigerator has the following problems.

【００１２】（１）冷蔵室１２６の温度が高くなって
も冷凍室１２８の温度が上昇しないと冷凍サイクルが動
作しないため、温度変動が大きい。 (1) Even if the temperature of the refrigerating compartment 126 rises, if the temperature of the freezing compartment 128 does not rise, the refrigerating cycle does not operate, so that the temperature fluctuation is large.

【００１３】（２）冷蔵室１２６の冷却用として冷凍
室１２８を冷却する低い温度の冷気を分配しているた
め、冷蔵室１２６を冷却するためには冷凍サイクルの運
転効率が悪いポイントで運転を行なっている。 (2) Since low-temperature cold air that cools the freezing compartment 128 is distributed for cooling the refrigerating compartment 126, in order to cool the refrigerating compartment 126, operation is performed at a point where the operation efficiency of the refrigeration cycle is poor. I am doing it.

【００１４】（３）冷蔵室１２６冷却用の冷気の温度
が低いため、吹出口付近の食品が凍結する。 (3) Since the temperature of the cold air for cooling the refrigerating compartment 126 is low, the food near the outlet is frozen.

【００１５】（４）少量の低い温度の冷気で冷蔵室１
２６を冷却するため、冷蔵室１２６の温度分布が悪い。 (4) Refrigerating room 1 with a small amount of cold air at low temperature
Since 26 is cooled, the temperature distribution in the refrigerating compartment 126 is poor.

【００１６】（５）各部屋の上限設定温度で冷凍サイ
クルの運転を制御しているため、負荷変動があり温度が
変動しても、すぐに冷却を行なわないため局部的に温度
変動が大きい。 (5) Since the operation of the refrigerating cycle is controlled at the upper limit set temperature of each room, even if the temperature fluctuates due to load fluctuation, the temperature is not immediately cooled, so the temperature fluctuates locally.

【００１７】そこで、本発明は上記問題点に鑑み、各部
屋が冷却を必要となった時に直ちに冷媒流路を切り替
え、冷却を開始して温度変動を抑制し、また、負荷に応
じた最適な蒸発温度、冷却能力で効率良く冷却して省電
力を図るようにした冷蔵庫の制御方法を提供するもので
ある。Therefore, in view of the above problems, the present invention switches the refrigerant flow path immediately when each room needs cooling, starts cooling and suppresses temperature fluctuations, and is optimal for the load. It is intended to provide a method of controlling a refrigerator that efficiently cools by an evaporation temperature and a cooling capacity to save power.

【００１８】[0018]

【課題を解決するための手段】請求項１の発明は、圧縮
機と、凝縮器と、複数の冷蔵用部屋に対応した冷蔵温度
帯用の冷蔵用蒸発器と、冷凍室に対応した冷凍温度帯用
の冷凍用蒸発器とを環状に接続して冷媒流路を構成し、
冷媒流路を切り替えて冷蔵用蒸発器に冷媒を流したり、
冷凍用蒸発器に冷媒を流す弁体を冷媒流路に介設し、冷
蔵用蒸発器側には冷蔵温度帯に冷気を送る冷蔵用送風機
が設けられ、冷凍用蒸発器側には冷凍温度帯に冷気を送
る冷凍用送風機が設けられ、各部屋には庫内温度を検出
する温度センサが設けられている冷蔵庫において、少な
くとも一部屋の負荷変動によって、温度センサの検出温
度が変動した時に、冷媒流路を切り替え、また、圧縮機
または冷気循環用の送風機の回転数を制御する制御手段
とにより、冷却力の補償を行うものであり、前記制御手
段は、冷蔵温度帯を冷却中に冷凍温度帯の部屋に負荷が
変動して温度上昇を検出した時に、冷媒流路は切り替え
ず圧縮機または冷蔵用送風機の回転数を増加させること
を特徴とする冷蔵庫の制御方法である。請求項２の発明
は、圧縮機と、凝縮器と、複数の冷蔵用部屋に対応した
冷蔵温度帯用の冷蔵用蒸発器と、冷凍室に対応した冷凍
温度帯用の冷凍用蒸発器とを環状に接続して冷媒流路を
構成し、冷媒流路を切り替えて冷蔵用蒸発器に冷媒を流
したり、冷凍用蒸発器に冷媒を流す弁体を冷媒流路に介
設し、冷蔵用蒸発器側には冷蔵温度帯に冷気を送る冷蔵
用送風機が設けられ、冷凍用蒸発器側には冷凍温度帯に
冷気を送る冷凍用送風機が設けられ、各部屋には庫内温
度を検出する温度センサが設けられている冷蔵庫におい
て、少なくとも一部屋の負荷変動によって、温度センサ
の検出温度が変動した時に、冷媒流路を切り替え、ま
た、圧縮機または冷気循環用の送風機の回転数を制御す
る制御手段とにより、冷却力の補償を行うものであり、
前記制御手段は、冷蔵温度帯を冷却中に冷凍温度帯の部
屋に負荷が変動して温度上昇を検出した時に、冷媒流路
を切り替えて、冷凍温度帯の部屋を冷却することを特徴
とする冷蔵庫の制御方法である。請求項３の発明は、圧
縮機と、凝縮器と、複数の冷蔵用部屋に対応した冷蔵温
度帯用の冷蔵用蒸発器と、冷凍室に対応した冷凍温度帯
用の冷凍用蒸発器とを環状に接続して冷媒流路を構成
し、冷媒流路を切り替えて冷蔵用蒸発器に冷媒を流した
り、冷凍用蒸発器に冷媒を流す弁体を冷媒流路に介設
し、冷蔵用蒸発器側には冷蔵温度帯に冷気を送る冷蔵用
送風機が設けられ、冷凍用蒸発器側には冷凍温度帯に冷
気を送る冷凍用送風機が設けられ、各部屋には庫内温度
を検出する温度センサが設けられている冷蔵庫におい
て、少なくとも一部屋の負荷変動によって、温度センサ
の検出温度が変動した時に、冷媒流路を切り替え、ま
た、圧縮機または冷気循環用の送風機の回転数を制御す
る制御手段とにより、冷却力の補償を行うものであり、
前記制御手段は、冷蔵温度帯を冷却中に冷凍温度帯の部
屋に負荷が変動して温度上昇を検出した時に、冷媒流路
を切り替えずに、冷蔵用送風機を停止させ、冷凍用送風
機を運転して冷凍温度帯の部屋のみを冷却することを特
徴とする冷蔵庫の制御方法である。請求項４の発明は、
圧縮機と、凝縮器と、複数の冷蔵用部屋に対応した冷蔵
温度帯用の冷蔵用蒸発器と、冷凍室に対応した冷凍温度
帯用の冷凍用蒸発器とを環状に接続して冷媒流路を構成
し、冷媒流路を切り替えて冷蔵用蒸発器に冷媒を流した
り、冷凍用蒸発器に冷媒を流す弁体を冷媒流路に介設
し、冷蔵用蒸発器側には冷蔵温度帯に冷気を送る冷蔵用
送風機が設けられ、冷凍用蒸発器側には冷凍温度帯に冷
気を送る冷凍用送風機が設けられ、各部屋には庫内温度
を検出する温度センサが設けられている冷蔵庫におい
て、少なくとも一部屋の負荷変動によって、温度センサ
の検出温度が変動した時に、冷媒流路を切り替え、ま
た、圧縮機または冷気循環用の送風機の回転数を制御す
る制御手段とにより、冷却力の補償を行うものであり、
前記制御手段は、冷凍温度帯を冷却中に冷蔵温度帯の部
屋に負荷が変動して温度上昇を検出した時に、冷媒流路
を切り替えずに圧縮機または冷凍用送風機の回転数を増
加させることを特徴とする冷蔵庫の制御方法である。請
求項５の発明は、圧縮機と、凝縮器と、複数の冷蔵用部
屋に対応した冷蔵温度帯用の冷蔵用蒸発器と、冷凍室に
対応した冷凍温度帯用の冷凍用蒸発器とを環状に接続し
て冷媒流路を構成し、冷媒流路を切り替えて冷蔵用蒸発
器に冷媒を流したり、冷凍用蒸発器に冷媒を流す弁体を
冷媒流路に介設し、冷蔵用蒸発器側には冷蔵温度帯に冷
気を送る冷蔵用送風機が設けられ、冷凍用蒸発器側には
冷凍温度帯に冷気を送る冷凍用送風機が設けられ、各部
屋には庫内温度を検出する温度センサが設けられている
冷蔵庫において、少なくとも一部屋の負荷変動によっ
て、温度センサの検出温度が変動した時に、冷媒流路を
切り替え、また、圧縮機または冷気循環用の送風機の回
転数を制御する制御手段とにより、冷却力の補償を行う
ものであり、前記制御手段は、冷凍温度帯を冷却中に冷
蔵温度帯の部屋に負荷が変動して温度上昇を検出した時
に、冷媒流路を切り替えて冷蔵用送風機と冷凍用送風機
を同時に運転し、冷蔵温度帯と冷凍温度帯の部屋を冷却
することを特徴とする冷蔵庫の制御方法である。請求項
６の発明は、圧縮機と、凝縮器と、複数の冷蔵用部屋に
対応した冷蔵温度帯用の冷蔵用蒸発器と、冷凍室に対応
した冷凍温度帯用の冷凍用蒸発器とを環状に接続して冷
媒流路を構成し、冷媒流路を切り替えて冷蔵用蒸発器に
冷媒を流したり、冷凍用蒸発器に冷媒を流す弁体を冷媒
流路に介設し、冷蔵用蒸発器側には冷蔵温度帯に冷気を
送る冷蔵用送風機が設けられ、冷凍用蒸発器側には冷凍
温度帯に冷気を送る冷凍用送風機が設けられ、各部屋に
は庫内温度を検出する温度センサが設けられている冷蔵
庫において、少なくとも一部屋の負荷変動によって、温
度センサの検出温度が変動した時に、冷媒流路を切り替
え、また、圧縮機または冷気循環用の送風機の回転数を
制御する制御手段とにより、冷却力の補償を行うもので
あり、前記制御手段は、冷凍温度帯を冷却中に冷蔵温度
帯の部屋に負荷が変動して温度上昇を検出した時に、冷
媒流路を切り替えて、冷蔵温度帯の部屋を冷却すること
を特徴とする冷蔵庫の制御方法である。請求項７の発明
は、圧縮機と、凝縮器と、複数の冷蔵用部屋に対応した
冷蔵温度帯用の冷蔵用蒸発器と、冷凍室に対応した冷凍
温度帯用の冷凍用蒸発器とを環状に接続して冷媒流路を
構成し、冷媒流路を切り替えて冷蔵用蒸発器に冷媒を流
したり、冷凍用蒸発器に冷媒を流す弁体を冷媒流路に介
設し、冷蔵用蒸発器側には冷蔵温度帯に冷気を送る冷蔵
用送風機が設けられ、冷凍用蒸発器側には冷凍温度帯に
冷気を送る冷凍用送風機が設けられ、各部屋には庫内温
度を検出する温度センサが設けられている冷蔵庫におい
て、少なくとも一部屋の負荷変動によって、温度センサ
の検出温度が変動した時に、冷媒流路を切り替え、ま
た、圧縮機または冷気循環用の送風機の回転数を制御す
る制御手段とにより、冷却力の補償を行うものであり、
前記制御手段は、冷蔵温度帯を冷却中に冷凍温度帯の部
屋の負荷変動があり温度上昇を検出して要冷却と判断し
た場合、冷凍用蒸発器の除霜直後であれば、冷凍用送風
機を遅れて動作させることを特徴とする冷蔵庫の制御方
法である。請求項１の冷蔵庫の制御方法であると、冷凍
能力を上げて冷蔵温度帯の冷却を早く終了させて、冷凍
温度帯の冷却に移り、温度変動を最小限に抑制すること
ができる。According to a first aspect of the present invention, a compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating rooms, and a freezing temperature corresponding to a freezing room. A refrigerant flow path is formed by connecting the belt-use refrigerating evaporator in an annular shape,
Switching the refrigerant flow path to flow the refrigerant to the refrigeration evaporator,
A valve body for flowing the refrigerant to the freezing evaporator is provided in the refrigerant flow path, a refrigerating blower for sending cold air to the refrigerating temperature zone is provided on the refrigerating evaporator side, and a freezing temperature zone on the freezing evaporator side. In a refrigerator provided with a refrigeration blower for sending cold air to each room, and a temperature sensor provided in each room to detect a temperature inside the refrigerator, when the temperature detected by the temperature sensor fluctuates due to load fluctuation of at least one room, the refrigerant The flow rate is switched, and the cooling means is compensated by the control means for controlling the rotation speed of the compressor or the blower for cooling air circulation, and the control means is the freezing temperature during cooling of the refrigerating temperature zone. A method of controlling a refrigerator, characterized in that, when a load changes in a strip room and a temperature rise is detected, the number of rotations of the compressor or the refrigeration blower is increased without switching the refrigerant flow path. The invention of claim 2 includes a compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating rooms, and a freezing evaporator for a freezing temperature zone corresponding to a freezing compartment. Evaporating for refrigeration by connecting a ring to form a refrigerant flow path, switching the refrigerant flow path to flow the refrigerant to the refrigerating evaporator, or installing a valve body for flowing the refrigerant to the freezing evaporator in the refrigerant flow path. A refrigeration blower that sends cold air to the refrigeration temperature zone is installed on the refrigerator side, and a refrigeration blower that sends cold air to the refrigeration temperature zone is provided on the freezing evaporator side. In a refrigerator provided with a sensor, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, control is performed to switch the refrigerant flow path and control the rotation speed of the compressor or the blower for circulating cold air. By means of means, the cooling power is compensated,
The control means switches the refrigerant flow passage to cool the room in the freezing temperature zone when the load in the room in the freezing temperature zone fluctuates and a temperature rise is detected while cooling the refrigeration temperature zone. This is a refrigerator control method. The invention of claim 3 includes a compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating rooms, and a freezing evaporator for a freezing temperature zone corresponding to a freezing compartment. Evaporating for refrigeration by connecting a ring to form a refrigerant flow path, switching the refrigerant flow path to flow the refrigerant to the refrigerating evaporator, or installing a valve body for flowing the refrigerant to the freezing evaporator in the refrigerant flow path. A refrigeration blower that sends cold air to the refrigeration temperature zone is installed on the refrigerator side, and a refrigeration blower that sends cold air to the refrigeration temperature zone is provided on the freezing evaporator side. In a refrigerator provided with a sensor, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, control is performed to switch the refrigerant flow path and control the rotation speed of the compressor or the blower for circulating cold air. By means of means, the cooling power is compensated,
The control means stops the refrigerating blower and switches the refrigerating blower without switching the refrigerant flow path when the load in the freezing temperature zone of the room during cooling of the refrigerating temperature zone is changed and a temperature rise is detected. Then, the method for controlling a refrigerator is characterized in that only the room in the freezing temperature zone is cooled. The invention of claim 4 is
A compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating rooms, and a refrigerating evaporator for a freezing temperature zone corresponding to a freezing room are connected in an annular shape to form a refrigerant flow. A channel is formed to switch the refrigerant flow path to allow the refrigerant to flow to the refrigerating evaporator, and a valve element to flow the refrigerant to the freezing evaporator is provided in the refrigerant flow path, and the refrigerating evaporator side has a refrigerating temperature zone. A refrigerator for sending cold air is provided to the refrigerator, a refrigerator for sending cold air to the freezing temperature zone is provided on the freezing evaporator side, and a refrigerator having a temperature sensor for detecting the temperature inside the refrigerator is provided in each room. In the above, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, the refrigerant flow path is switched, and the control means for controlling the number of revolutions of the compressor or the blower for cooling air is used to control the cooling power. To compensate,
The control means increases the rotation speed of the compressor or the refrigeration blower without switching the refrigerant flow path when the load changes in the room in the refrigerating temperature zone and the temperature rise is detected while cooling the freezing temperature zone. Is a method of controlling a refrigerator. The invention of claim 5 includes a compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating rooms, and a freezing evaporator for a freezing temperature zone corresponding to a freezing compartment. Evaporating for refrigeration by connecting a ring to form a refrigerant flow path, switching the refrigerant flow path to flow the refrigerant to the refrigerating evaporator, or installing a valve body for flowing the refrigerant to the freezing evaporator in the refrigerant flow path. A refrigeration blower that sends cold air to the refrigeration temperature zone is installed on the refrigerator side, and a refrigeration blower that sends cold air to the refrigeration temperature zone is provided on the freezing evaporator side. In a refrigerator provided with a sensor, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, control is performed to switch the refrigerant flow path and control the rotation speed of the compressor or the blower for circulating cold air. Means for compensating the cooling power, When the load changes in the room in the refrigerating temperature zone and the temperature rise is detected during cooling of the refrigerating temperature zone, the refrigerant flow path is switched to operate the refrigerating blower and the freezing blower at the same time to cool the refrigerating temperature zone. And a method of controlling a refrigerator characterized by cooling a room in a freezing temperature zone. Claim
A sixth aspect of the present invention provides a compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating rooms, and a freezing evaporator for a freezing temperature zone corresponding to a freezing compartment in an annular shape. Connected to form a refrigerant flow path, switching the refrigerant flow path to flow the refrigerant to the refrigerating evaporator, or a valve body for flowing the refrigerant to the freezing evaporator is provided in the refrigerant flow path, and the refrigerating evaporator side Is equipped with a refrigeration blower that sends cold air to the refrigeration temperature zone, a freezing blower that sends cold air to the freezing temperature zone is provided on the freezing evaporator side, and a temperature sensor that detects the temperature inside the refrigerator is provided in each room. In the provided refrigerator, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, a refrigerant flow path is switched, and a control means for controlling the number of revolutions of the compressor or the blower for cooling air circulation. The cooling power is compensated by Is a control of a refrigerator characterized in that, when a load changes in a room in the refrigerating temperature zone and a temperature rise is detected while cooling the freezing temperature zone, the refrigerant flow path is switched to cool the room in the refrigerating temperature zone. Is the way. The invention of claim 7 includes a compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating rooms, and a freezing evaporator for a freezing temperature zone corresponding to a freezing compartment. Evaporating for refrigeration by connecting a ring to form a refrigerant flow path, switching the refrigerant flow path to flow the refrigerant to the refrigerating evaporator, or installing a valve body for flowing the refrigerant to the freezing evaporator in the refrigerant flow path. A refrigeration blower that sends cold air to the refrigeration temperature zone is installed on the refrigerator side, and a refrigeration blower that sends cold air to the refrigeration temperature zone is provided on the freezing evaporator side. In a refrigerator provided with a sensor, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, control is performed to switch the refrigerant flow path and control the rotation speed of the compressor or the blower for circulating cold air. By means of means, the cooling power is compensated,
When the control means detects a temperature change due to load fluctuation of the room in the freezing temperature zone during cooling of the refrigerating temperature zone and determines that cooling is required, immediately after defrosting the freezing evaporator, the refrigeration blower. Is a method of controlling a refrigerator, characterized in that the refrigerator is operated with a delay. According to the refrigerator control method of the first aspect, it is possible to raise the refrigerating capacity and quickly terminate the cooling of the refrigerating temperature zone, and shift to the cooling of the freezing temperature zone, thereby suppressing the temperature fluctuation to the minimum.

【００１９】請求項２の冷蔵庫の制御方法であると、冷
凍温度帯に高負荷が投入され、温度変動が大きくなる前
に冷凍温度帯の冷却を行ない、温度変動を最小限に抑制
することができる。According to the second aspect of the control method of the refrigerator, a high load is applied to the freezing temperature zone, the freezing temperature zone is cooled before the temperature variation becomes large, and the temperature variation can be suppressed to the minimum. it can.

【００２０】請求項３の冷蔵庫の制御方法であると、冷
凍温度帯に高負荷が投入され、温度変動が大きくなる前
に冷凍温度帯の冷却を行ない、温度変動を最小限に抑制
することができる。また、弁体の切り替え回数の削減が
できて、省電力を図ることができる。According to the third aspect of the refrigerator control method, a high load is applied to the freezing temperature zone, the freezing temperature zone is cooled before the temperature variation becomes large, and the temperature variation can be minimized. it can. In addition, the number of switching of valve bodies can be reduced, and power can be saved.

【００２１】[0021]

【００２２】請求項４の冷蔵庫の制御方法であると、冷
凍能力を上げて冷凍温度帯の冷却を早く終了させて、冷
蔵温度帯の冷却に移り、温度変動を最小限に抑制するこ
とができる。According to the control method of the refrigerator of claim 4 , it is possible to raise the refrigerating capacity to end the cooling of the freezing temperature zone early and move to the cooling of the refrigerating temperature zone to suppress the temperature fluctuation to the minimum. .

【００２３】請求項５の冷蔵庫の制御方法であると、冷
凍温度帯を冷却し始めた直後に冷蔵温度帯の負荷が変動
したら、両温度帯の部屋を冷却し、両温度帯の温度上昇
を抑制することができる。According to the fifth aspect of the refrigerator control method, if the load in the refrigerating temperature zone fluctuates immediately after cooling the freezing temperature zone, the room in both temperature zones is cooled to raise the temperature in both temperature zones. Can be suppressed.

【００２４】請求項６の冷蔵庫の制御方法であると、冷
却中の冷凍温度帯が下限設定温度に近く、冷蔵温度帯の
負荷が大きい場合は、冷蔵温度帯の部屋の冷却に移行
し、温度上昇を抑制することができる。According to the sixth aspect of the refrigerator control method, when the refrigerating temperature zone during cooling is close to the lower limit set temperature and the load in the refrigerating temperature zone is large, the process shifts to cooling the room in the refrigerating temperature zone, and the temperature is changed. The rise can be suppressed.

【００２５】請求項７の冷蔵庫の制御方法であると、除
霜直後の蒸発器は温度が高いため、冷凍用送風機を遅れ
て動作させることで、蒸発器による庫内温度の上昇を防
止できる。According to the seventh aspect of the refrigerator control method, since the temperature of the evaporator immediately after defrosting is high, it is possible to prevent the temperature inside the refrigerator from rising due to the evaporator being operated with a delay.

【００２６】[0026]

【発明の実施の形態】以下、本発明の一実施例を図１〜
図９に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG.

【００２７】先ず、本発明の冷蔵庫の構成について図４
〜図９を用いて説明する。First, the structure of the refrigerator of the present invention is shown in FIG.
~ It demonstrates using FIG.

【００２８】図４は、本実施例の冷蔵庫１０の正面図で
あり、図５は、冷蔵庫１０の各扉を開けた状態の正面図
である。FIG. 4 is a front view of the refrigerator 10 of this embodiment, and FIG. 5 is a front view of the refrigerator 10 in a state where each door is opened.

【００２９】図４及び図５に示すように、冷蔵庫１０の
本体であるキャビネット１２には、上段から冷蔵室１
４、野菜室１６、温度切替室１８、冷凍室２２が設けら
れている。また、温度切替室１８の左側には製氷室２０
が設けられている。そして、野菜室１６と温度切替室１
８、製氷室２０との間には断熱仕切体２４が配されてい
る。As shown in FIGS. 4 and 5, the cabinet 12 which is the main body of the refrigerator 10 has a refrigerator compartment 1 from the top.
4, a vegetable compartment 16, a temperature switching compartment 18, and a freezing compartment 22 are provided. Further, on the left side of the temperature switching chamber 18, the ice making chamber 20
Is provided. And the vegetable room 16 and the temperature switching room 1
8. A heat insulating partition 24 is arranged between the ice making chamber 20 and the ice making chamber 20.

【００３０】冷蔵室１４には、ヒンジによって開閉する
冷蔵室扉１４ａが設けられている。また、この冷蔵室１
４の下部には、約０℃付近で庫内温度を維持するチルド
室２６が設けられている。The refrigerator compartment 14 is provided with a refrigerator compartment door 14a which is opened and closed by a hinge. Also, this refrigeration room 1
A chilled chamber 26 that maintains the temperature inside the chamber at around 0 ° C. is provided in the lower part of 4.

【００３１】野菜室１６は、引出式の野菜室扉１６ａが
設けられ、この扉と共に野菜容器２８が引き出し可能と
なっている。The vegetable compartment 16 is provided with a pull-out type vegetable compartment door 16a, and a vegetable container 28 can be pulled out together with the door.

【００３２】温度切替室１８には、引出式の温度切替室
扉１８ａが設けられ、この扉と共に温度切替室容器３０
が引き出し可能となっている。The temperature switching chamber 18 is provided with a drawer-type temperature switching chamber door 18a, and together with this door, the temperature switching chamber container 30.
Can be withdrawn.

【００３３】冷凍室２２にも、引出式の冷凍室扉２２ａ
が設けられ、この扉と共に冷凍容器３２が引き出し可能
となっている。The freezer compartment door 22a of the drawer type is also provided in the freezer compartment 22.
Is provided, and the freezing container 32 can be pulled out together with this door.

【００３４】製氷室２０は、図７に示すように、その天
井部付近に製氷装置３４が設けられ、この下方には貯氷
容器３６が設けられている。As shown in FIG. 7, the ice making chamber 20 is provided with an ice making device 34 near the ceiling thereof, and an ice storage container 36 is provided below the ice making device 34.

【００３５】製氷装置３４は、製氷皿３８と、それを回
転させる駆動部４０と、貯氷容器３６の氷の量を検知す
る検氷レバー４２とよりなる。なお、製氷皿３８に水を
供給するタンク４４は、チルド室２６の左側に設けられ
ている。The ice making device 34 comprises an ice making tray 38, a drive unit 40 for rotating the ice making tray 38, and an ice detecting lever 42 for detecting the amount of ice in the ice storage container 36. A tank 44 that supplies water to the ice tray 38 is provided on the left side of the chilled chamber 26.

【００３６】次に、図６〜図９に基づいて、冷蔵庫１０
の冷凍サイクルの構造及びその配置について説明する。Next, the refrigerator 10 will be described with reference to FIGS.
The structure and arrangement of the refrigerating cycle will be described.

【００３７】まず、圧縮機４６は、図７に示すように、
キャビネット１２の底部、すなわち冷凍室２２の後方下
部に設けられている機械室４８に設けられている。First, the compressor 46, as shown in FIG.
It is provided in the machine room 48 provided at the bottom of the cabinet 12, that is, in the lower rear part of the freezer compartment 22.

【００３８】冷蔵庫１０の蒸発器は冷蔵用と冷凍用の２
つ存在し、冷蔵用蒸発器５０は野菜室１６の後方に配さ
れ、冷凍用蒸発器５２は冷凍室２２の後方上部に設けら
れている。また、冷蔵用蒸発器５０の上方には冷蔵用送
風機５４が設けられ、冷凍用蒸発器５２の上方には冷凍
用送風機５６が設けられている。また、冷蔵用蒸発器５
０の下方には除霜ヒータ９６が設けられている。冷凍用
蒸発器５２の下方には除霜ヒータ９８が設けられてい
る。The refrigerator 10 has two evaporators for refrigeration and for freezing.
The refrigerating evaporator 50 is provided behind the vegetable compartment 16 and the freezing evaporator 52 is provided at the upper rear portion of the freezing compartment 22. A refrigeration blower 54 is provided above the refrigeration evaporator 50, and a freezing blower 56 is provided above the freezing evaporator 52. Also, the refrigeration evaporator 5
A defrost heater 96 is provided below 0. A defrost heater 98 is provided below the freezing evaporator 52.

【００３９】ところで、温度切替室１８の左側壁と底板
は断熱構造となっている。これによって、温度切替室１
８の庫内温度を冷蔵室と同じ温度に設定しても、周囲に
存在する冷凍室２２等からの温度影響を受けることがな
い。さらに、温度切替室１８の背面板も断熱構造となっ
ているため、冷凍用蒸発器５２からの温度影響を受ける
こともない。By the way, the left side wall and the bottom plate of the temperature switching chamber 18 have a heat insulating structure. As a result, the temperature switching chamber 1
Even if the internal temperature of 8 is set to the same temperature as the refrigerating room, it is not affected by the temperature of the freezing room 22 and the like existing in the surroundings. Further, since the back plate of the temperature switching chamber 18 also has the heat insulating structure, it is not affected by the temperature from the freezing evaporator 52.

【００４０】この冷凍サイクルの装置の配置を概説した
ものが図８であり、その冷媒流路を示したブロック図が
図９である。以下、この図８及び図９に基づいて、冷媒
の流れについて説明する。FIG. 8 shows an outline of the arrangement of the refrigerating cycle apparatus, and FIG. 9 is a block diagram showing the refrigerant flow path. Hereinafter, the flow of the refrigerant will be described with reference to FIGS. 8 and 9.

【００４１】圧縮機４６から出た冷媒は、マフラー５
８、放熱パイプ６０、凝縮器６２、防露パイプ６４、ド
ライヤー６６を経て三方弁６８に至る。三方弁６８にお
いて冷媒流路は分岐し、一方は冷蔵用キャピラリーチュ
ーブ７０に向かい、他方は冷凍用キャピラリーチューブ
７２に向かう。冷蔵用キャピラリーチューブ７０から前
記した冷蔵用蒸発器５０に至り、冷凍用キャピラリーチ
ューブ７２の出口側と１つになり、前記した冷凍用蒸発
器５２に至る。その後、アキュムレータ７４、サクショ
ンパイプ７６を通って圧縮機４６に戻る。The refrigerant discharged from the compressor 46 is the muffler 5
8, the heat radiating pipe 60, the condenser 62, the dew proof pipe 64, and the dryer 66 to reach the three-way valve 68. In the three-way valve 68, the refrigerant flow path is branched, one heads for the refrigeration capillary tube 70, and the other heads for the freezing capillary tube 72. From the refrigerating capillary tube 70 to the refrigerating evaporator 50 described above, it becomes one with the outlet side of the freezing capillary tube 72, and reaches the refrigerating evaporator 52 described above. Then, it returns to the compressor 46 through the accumulator 74 and the suction pipe 76.

【００４２】ここで、上記で説明していない各装置の冷
蔵庫１０における取付位置を説明する。Here, the mounting positions of the devices not described above in the refrigerator 10 will be described.

【００４３】凝縮器６２は、図８に示すように、複数回
折曲されて板状に構成され、図７に示すように、冷凍室
２２の底部下方に配されている。また、アキュムレータ
７４は、図６に示すように、冷凍用蒸発器５２の右側に
取り付けられている。As shown in FIG. 8, the condenser 62 is bent a plurality of times to form a plate shape, and is arranged below the bottom of the freezer compartment 22 as shown in FIG. Further, the accumulator 74 is attached to the right side of the freezing evaporator 52, as shown in FIG.

【００４４】次に、上記構成の冷凍サイクルにおける冷
気の流れを冷蔵庫１０の図６及び図７を用いて説明す
る。Next, the flow of cold air in the refrigerating cycle having the above structure will be described with reference to FIGS. 6 and 7 of the refrigerator 10.

【００４５】まず、冷蔵用蒸発器５０によって冷却され
た冷気の流れについて説明する。First, the flow of cold air cooled by the refrigerating evaporator 50 will be described.

【００４６】冷蔵用蒸発器５０によって冷却された冷気
は、冷蔵用送風機５４によって、野菜室１６の後方に位
置する冷蔵分岐空間７８に送り込まれる。この冷蔵分岐
空間７８の上部は、冷蔵室１４の背面に設けられている
冷蔵ダクト８０に接続され、この冷蔵ダクト８０に冷気
が送られる。冷蔵ダクト８０は、図６に示すように、冷
蔵室１４の下部で二股に分かれ、ほぼＵ字状の形状をな
している。冷蔵ダクト８０の前面には所定間隔毎に冷気
の吹出口８２が設けられ、これら吹出口８２から冷蔵室
１４に冷気が吹き込まれる。冷蔵室１４を冷却した冷気
はチルド室２６、タンク４４の下方を通って（図７参
照）、冷蔵用送風機５４及び冷蔵用蒸発器５０の左右に
設けられたリターンダクト８４に流れ（図６参照）、冷
蔵用蒸発器５０の下方に吹き出される。そして、この冷
気は再び冷蔵用蒸発器５０で冷却されて、冷蔵用送風機
５４の位置に至る。The cool air cooled by the refrigerating evaporator 50 is sent into the refrigerating branch space 78 located behind the vegetable compartment 16 by the refrigerating blower 54. The upper part of the refrigerating branch space 78 is connected to a refrigerating duct 80 provided on the back surface of the refrigerating chamber 14, and cold air is sent to the refrigerating duct 80. As shown in FIG. 6, the refrigerating duct 80 is bifurcated at the lower part of the refrigerating chamber 14 and has a substantially U-shape. Cooling air outlets 82 are provided on the front surface of the refrigerating duct 80 at predetermined intervals, and cold air is blown into the refrigerating chamber 14 from these air outlets 82. The cold air that has cooled the refrigerating chamber 14 flows under the chilled chamber 26 and the tank 44 (see FIG. 7) and flows into the return ducts 84 provided on the left and right of the refrigerating blower 54 and the refrigerating evaporator 50 (see FIG. 6). ), And is blown out below the refrigerating evaporator 50. Then, the cold air is cooled again by the refrigerating evaporator 50 and reaches the position of the refrigerating blower 54.

【００４７】一方、冷蔵分岐空間７８からは、野菜室１
６の後方下部に向かって冷気が吹き出され、野菜室１６
を冷却する（図７参照）。この冷気は、野菜容器２８の
底部を後ろから前に向かって流れ、冷蔵室１４と野菜室
１６を仕切っている上仕切体８６内部に設けられたリタ
ーンダクト８８に至る（図６参照）。このリターンダク
ト８８は、前記したリターンダクト８４に接続され、こ
の野菜室１６を冷却した冷気も冷蔵用蒸発器５０の下方
に循環する（図６参照）。On the other hand, from the refrigerating branch space 78, the vegetable compartment 1
Cold air is blown toward the lower rear of 6 and the vegetable compartment 16
Is cooled (see FIG. 7). This cold air flows from the back to the front through the bottom of the vegetable container 28 and reaches the return duct 88 provided inside the upper partition body 86 that partitions the refrigerating compartment 14 and the vegetable compartment 16 (see FIG. 6). The return duct 88 is connected to the return duct 84 described above, and the cold air that has cooled the vegetable compartment 16 also circulates below the refrigerating evaporator 50 (see FIG. 6).

【００４８】次に、冷凍用蒸発器５２によって冷却され
た冷気の流れを説明する。Next, the flow of cold air cooled by the freezing evaporator 52 will be described.

【００４９】冷凍用蒸発器５２によって冷却された冷凍
用送風機５６は、冷凍分岐空間９０に至る。この冷凍分
岐空間９０の上部は製氷装置３４に通じており、冷気は
この上部から製氷装置３４に吹き出す。また、冷凍分岐
空間９０の下部は、冷凍室２２の冷凍容器３２の背面板
に開口している孔３３に通じており、冷気は、この下部
から冷凍容器３２内部に向かって吹き出す。The freezing blower 56 cooled by the freezing evaporator 52 reaches the freezing branch space 90. The upper part of the freezing branch space 90 communicates with the ice making device 34, and the cold air is blown from the upper part to the ice making device 34. Further, the lower part of the freezing branch space 90 communicates with a hole 33 that is opened in the back plate of the freezing container 32 of the freezing chamber 22, and the cold air is blown toward the inside of the freezing container 32 from this lower part.

【００５０】製氷室２０を冷却した冷気は冷凍室２２の
前面に流れ、冷凍室２２の冷凍容器３２の内部を冷却し
た冷気は冷凍室２２の前面に流れる。そして、この冷気
は冷凍容器３２の前面に沿って下方に流れ、底部を通っ
てリターンダクト９２に至る。リターンダクト９２に流
れ込んだ冷気は、冷凍用蒸発器５２に循環する。The cold air that has cooled the ice making chamber 20 flows to the front surface of the freezing chamber 22, and the cold air that has cooled the inside of the freezing container 32 of the freezing chamber 22 flows to the front surface of the freezing chamber 22. Then, this cold air flows downward along the front surface of the freezing container 32 and reaches the return duct 92 through the bottom portion. The cold air flowing into the return duct 92 circulates in the freezing evaporator 52.

【００５１】冷凍分岐空間９０の右側には、温度切替室
１８に冷気を送るためのダンパ装置９４が設けられ、こ
のダンパ装置９４のダンパの開閉によって、温度切替室
１８に送る冷気の量が調整され、その庫内温度を調整す
る。温度切替室１８を冷却した冷気は、温度切替室１８
の底部から冷凍用蒸発器５２に通じるリターンダクト９
５に流れ込み冷凍用蒸発器５２に循環する。A damper device 94 for sending cold air to the temperature switching chamber 18 is provided on the right side of the freezing branch space 90, and the amount of cold air sent to the temperature switching chamber 18 is adjusted by opening / closing the damper of the damper device 94. Then, the temperature inside the refrigerator is adjusted. The cold air that has cooled the temperature switching chamber 18 is
Return duct 9 from the bottom of the tank to the freezing evaporator 52
5 and circulates in the freezing evaporator 52.

【００５２】次に、本発明の冷蔵庫の温度の制御方法に
ついて図１〜図３に基づいて説明する。図１は、図９を
簡略化した本発明の冷蔵庫のサイクル構成を示す図であ
る。圧縮機４６を出た高温、高圧の冷媒は凝縮器６２で
冷却され、凝縮器６２を出た冷媒は三方弁６８で冷蔵用
キャピラリーチューブ７０あるいは冷凍用キャピラリー
チューブ７２のどちらかに流れるように制御される。Next, a method of controlling the temperature of the refrigerator according to the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing a cycle configuration of the refrigerator of the present invention, which is a simplified version of FIG. The high-temperature, high-pressure refrigerant discharged from the compressor 46 is cooled by the condenser 62, and the refrigerant discharged from the condenser 62 is controlled by the three-way valve 68 to flow into either the refrigeration capillary tube 70 or the freezing capillary tube 72. To be done.

【００５３】冷蔵用キャピラリーチューブ７０は冷蔵用
蒸発器５０に接続され、連結パイプ７１を通り冷凍用蒸
発器５２に接続されている。また、冷凍用キャピラリー
チューブ７２は冷凍用蒸発器５２に直接接続されてい
る。冷凍用蒸発器５２を出た冷媒はサクションパイプ７
６を通り圧縮機４６に戻る。The refrigerating capillary tube 70 is connected to the refrigerating evaporator 50, and is connected to the freezing evaporator 52 through the connecting pipe 71. The freezing capillary tube 72 is directly connected to the freezing evaporator 52. The refrigerant discharged from the freezing evaporator 52 is the suction pipe 7
Return to compressor 46 via 6.

【００５４】冷媒は冷蔵用キャピラリーチューブ７０に
流れる場合は冷蔵用蒸発器５０及び冷凍用蒸発器５２の
両方に流れ、冷凍用キャピラリーチューブ７２に冷媒が
流れる場合は、冷凍用蒸発器５２のみに流れるようにな
っている。When the refrigerant flows into the refrigerating capillary tube 70, it flows into both the refrigerating evaporator 50 and the freezing evaporator 52, and when the refrigerant flows into the freezing capillary tube 72, it flows only into the freezing evaporator 52. It is like this.

【００５５】図２は本発明の冷蔵庫内の冷気の流れを示
すものであり、冷蔵室１４には庫内温度を検出する冷蔵
室用温度センサ１５が設けられている。また、冷凍室２
２にも庫内温度を検出する冷凍室用温度センサ２３が設
けられている。FIG. 2 shows the flow of cold air in the refrigerator of the present invention. The refrigerating compartment 14 is provided with a refrigerating compartment temperature sensor 15 for detecting the temperature inside the refrigerator. In addition, freezer room 2
2 is also provided with a freezer compartment temperature sensor 23 for detecting the interior temperature.

【００５６】冷蔵用蒸発器５０で冷却された冷気は冷蔵
用送風機５４により冷蔵室１４、野菜室１６へ送り出さ
れる。また、冷凍用蒸発器５２で冷却された冷気は、冷
凍用送風機５６により冷凍室２２へ送り出される。The cold air cooled by the refrigerating evaporator 50 is sent to the refrigerating compartment 14 and the vegetable compartment 16 by the refrigerating blower 54. The cold air cooled by the freezing evaporator 52 is sent to the freezing compartment 22 by the freezing blower 56.

【００５７】また、冷蔵室用温度センサ１５、冷凍室用
温度センサ２３からの検出信号が制御装置５７に入力さ
れており、この検出信号により制御装置５７が圧縮機４
６、冷蔵用送風機５４、冷凍用送風機５６の回転数の制
御やオン、オフの制御をしたり、また、三方弁６８の流
路の切り替え制御を行なうようにしている。Further, the detection signals from the refrigerating compartment temperature sensor 15 and the freezing compartment temperature sensor 23 are input to the control device 57, and the control device 57 causes the control device 57 to output the detection signals.
6. Controlling the number of revolutions of the refrigeration blower 54 and the refrigeration blower 56, turning them on and off, and controlling the switching of the flow path of the three-way valve 68.

【００５８】第１の実施例は、少なくともいずれかの部
屋（冷蔵室１４や野菜室１６、あるいは冷凍室２２）の
負荷変動によって、冷蔵室用温度センサ１５、冷凍室用
温度センサ２３の検出温度が変動した場合、検出温度を
逸早く適正温度範囲内に収めるために、冷媒流路を三方
弁６８によって切り替え、圧縮機４６と冷蔵用送風機５
４、冷凍用送風機５６の回転数を決定して制御するよう
にしたものである。In the first embodiment, the temperature detected by the refrigerating room temperature sensor 15 and the freezing room temperature sensor 23 depends on the load fluctuation of at least one of the rooms (refrigerating room 14, vegetable room 16 or freezing room 22). If the temperature fluctuates, the refrigerant flow path is switched by the three-way valve 68 in order to quickly bring the detected temperature within the proper temperature range, and the compressor 46 and the refrigeration blower 5
4. The number of rotations of the refrigeration blower 56 is determined and controlled.

【００５９】例えば、冷蔵室１４の庫内温度が変動した
時、それに伴い冷蔵室用温度センサ１５の検出温度が変
動し、その温度検出信号を制御装置５７が受け取り、制
御装置５７は冷媒が冷蔵用蒸発器５０に流れるように三
方弁６８を切り替え制御する。そして、制御装置５７は
圧縮機４６の回転数（３０〜８０ｒｐｓ）と冷蔵用送風
機５４の回転数（１０００〜３０００ｒｐｍ）の範囲内
で最適に回転制御するために、最適な蒸発温度（−１８
〜−２５℃）、冷凍能力で必要量の風量（１０〜７０ｍ
^３／ｈ）で効率良く冷却するようにしている。For example, when the temperature inside the refrigerating compartment 14 fluctuates, the temperature detected by the refrigerating compartment temperature sensor 15 also fluctuates, and the controller 57 receives the temperature detection signal, and the controller 57 refrigerates the refrigerant. The three-way valve 68 is switched and controlled so as to flow to the evaporator 50. Then, the control device 57 optimally controls the rotation speed within the range of the rotation speed of the compressor 46 (30 to 80 rps) and the rotation speed of the refrigeration blower 54 (1000 to 3000 rpm), so that the optimum evaporation temperature (-18
~ -25 ℃), the required amount of air in the refrigeration capacity (10-70m
³ / h) is used for efficient cooling.

【００６０】なお、野菜室１６の場合も同様に制御され
る。The same applies to the case of the vegetable compartment 16.

【００６１】また、冷凍室２２の庫内温度を検出する冷
凍室用温度センサ２３の検出温度が変動した場合も三方
弁６８を切り換えて冷凍用蒸発器５２に冷媒が流れるよ
うに制御する。そして、圧縮機４６の回転数（３０〜８
０ｒｐｓ）と冷蔵用送風機５４の回転数（１０００〜３
０００ｒｐｍ）の範囲内で最適に回転制御するために、
最適な蒸発温度（−２３〜−３０℃）、冷凍能力で必要
量の風量（１０〜７０ｍ^３／ｈ）で効率良く冷却する
ようにしている。Further, even when the temperature detected by the freezing chamber temperature sensor 23 for detecting the temperature inside the freezing chamber 22 fluctuates, the three-way valve 68 is switched to control the refrigerant to flow to the freezing evaporator 52. Then, the rotation speed of the compressor 46 (30 to 8
0 rps) and the rotation speed of the refrigeration blower 54 (1000 to 3)
000 rpm) to optimally control the rotation within the range,
The optimum evaporation temperature (-23 to -30 [deg.] C.) and the refrigerating capacity are used to efficiently cool the air with the required amount of air (10 to 70 m < ³ > / h).

【００６２】このように、各部屋（冷蔵室１４、野菜室
１６、冷凍室２２）の負荷変動を逸早く検知し、冷気を
循環させることで、温度変動を最小限に抑えることがで
きる（迅速温度回復）。したがって、冷蔵温度帯の吹出
口付近の食品の凍結防止や、省電力を図ることが可能と
なる。As described above, the load fluctuation in each room (refrigerator compartment 14, vegetable compartment 16, freezer compartment 22) is detected promptly and the cool air is circulated, whereby the temperature fluctuation can be minimized (rapid temperature). recovery). Therefore, it is possible to prevent food from freezing near the outlet in the refrigerating temperature zone and save power.

【００６３】（第２の実施例）第２の実施例は、各々の
部屋の冷却が必要かは予め設定されている上限設定温度
（冷蔵室１４では７℃、冷凍室２２では−１２℃）か、
単位時間（分）当たりの温度変動量で判断して制御する
ようにしたものである。(Second Embodiment) In the second embodiment, whether or not each room needs to be cooled is set in advance to a preset upper limit temperature (7 ° C. in the refrigerating compartment 14, -12 ° C. in the freezing compartment 22). Or
The control is performed by judging the temperature fluctuation amount per unit time (minute).

【００６４】図３は冷蔵室１４、冷凍室２２等の上限設
定温度と下限設定温度の範囲で、圧縮機４６、冷蔵用送
風機５４、冷凍用送風機５６のオン、オフを示してお
り、図中ｘは分単位の単位時間（例えば、１０分）を示
し、ｙは温度変動値を示している。FIG. 3 shows turning on and off of the compressor 46, the refrigerating blower 54, and the freezing blower 56 in the range of the upper limit setting temperature and the lower limit setting temperature of the refrigerating room 14, the freezing room 22 and the like. x indicates a unit time (for example, 10 minutes) in minutes, and y indicates a temperature fluctuation value.

【００６５】冷蔵室１４あるいは冷凍室２２の負荷が変
動し、庫内温度が（１）上限設定温度を越える場合と、
（２）上限設定温度を越えない範囲の上昇の２つが考え
られる。（１）の場合は、直ちに冷蔵室１４または冷凍
室２２、あるいは両方を冷却する。（２）の場合は、温
度変動量の上限設定温度に到達する前に冷却するため、
温度の回復が早い。When the load in the refrigerating room 14 or the freezing room 22 fluctuates and the internal temperature exceeds (1) the upper limit set temperature,
(2) There are two possible increases in the range that does not exceed the upper limit set temperature. In the case of (1), the refrigerating compartment 14 or the freezing compartment 22 or both are immediately cooled. In the case of (2) , since the cooling is performed before the upper limit set temperature of the temperature fluctuation amount is reached,
The temperature recovers quickly.

【００６６】（第３の実施例）第３の実施例は、冷蔵温
度帯を冷却中に冷蔵温度帯の部屋（冷蔵室１４）の負荷
が変動し、温度変動を検出した場合の制御方法である。
この場合、温度変動に応じた圧縮機４６の回転数（８０
ｒｐｓ）と冷蔵用送風機５４の回転数（３０００ｒｐ
ｍ）に変えるように制御するようにしたものである。(Third Embodiment) The third embodiment is a control method in the case where the load of the room in the refrigerating temperature zone (refrigerating compartment 14) fluctuates during cooling of the refrigerating temperature zone and temperature fluctuation is detected. is there.
In this case, the rotation speed of the compressor 46 (80
rps) and the rotational speed of the refrigeration blower 54 (3000 rp
It is controlled so that it is changed to m).

【００６７】これにより冷蔵用蒸発器５０による最適蒸
発温度（−１８〜−２５℃）と、冷蔵用送風機５４によ
る必要風量（１０〜７０ｍ^３／ｈ）で冷蔵室１４等の
冷蔵温度帯の部屋を冷却することができるため、食品の
凍結防止、温度分布の改善、省電力が図れ、さらに温度
変動を最小限に抑制することができる。Accordingly, the optimum evaporation temperature (-18 to -25 ° C) by the refrigerating evaporator 50 and the required air volume (10 to 70 m ³ / h) by the refrigerating blower 54 are used in the refrigerating temperature zone such as the refrigerating room 14. Since it can be cooled, it is possible to prevent food from freezing, improve temperature distribution, save power, and further suppress temperature fluctuations to a minimum.

【００６８】（第４の実施例）第４の実施例は、冷蔵室
１４等の冷蔵温度帯の冷却を始めた直後で、冷凍室２２
等の冷凍温度帯の温度変動が小さい場合の制御方法であ
る。なお、この温度変動は、１０分前のｙ／ｘに対して
５倍未満としている。(Fourth Embodiment) In the fourth embodiment, immediately after the cooling of the refrigerating temperature zone such as the refrigerating compartment 14 is started, the freezing compartment 22
This is a control method in the case where temperature fluctuations in the freezing temperature zone such as are small. Note that this temperature variation is less than 5 times the y / x 10 minutes ago.

【００６９】冷蔵室１４等の冷蔵温度帯を冷却中に冷凍
室２２等の冷凍温度帯の部屋の負荷が変動し、温度変動
を検出した時、冷媒流路はそのままで、圧縮機４６の回
転数（３０〜８０ｒｐｓ）と、冷蔵用送風機５４の回転
数（１０００〜３０００ｒｐｍ）をアップする方向に制
御する。During cooling of the refrigerating temperature zone such as the refrigerating compartment 14, the load in the freezing compartment such as the freezing compartment 22 fluctuates, and when temperature fluctuation is detected, the refrigerant flow path remains and the compressor 46 rotates. The number (30 to 80 rps) and the number of rotations (1000 to 3000 rpm) of the refrigeration blower 54 are controlled in the direction of increasing them.

【００７０】これにより、冷凍能力を上げて冷蔵温度帯
の冷却を早く終了させて、冷凍温度帯の冷却に移り、温
度変動を最小限に抑制することができる。As a result, the refrigerating capacity can be increased, the cooling of the refrigerating temperature zone can be quickly completed, and the cooling of the refrigerating temperature zone can be started, so that the temperature fluctuation can be suppressed to the minimum.

【００７１】（第５の実施例）第５の実施例は、冷蔵温
度帯の温度が下限設定温度に近く、冷凍温度帯の温度変
動が大きい場合の制御方法である。なお、この温度変動
は、１０分前のｙ／ｘに対して５倍以上としている。(Fifth Embodiment) The fifth embodiment is a control method when the temperature in the refrigerating temperature zone is close to the lower limit set temperature and the temperature fluctuation in the freezing temperature zone is large. It should be noted that this temperature change is set to be 5 times or more as much as y / x 10 minutes before.

【００７２】この場合、三方弁６８により冷媒流路を切
り替えて、冷凍用蒸発器５４により冷凍室２２等の冷凍
温度帯の部屋のみを冷却するようにしている。In this case, the refrigerant flow path is switched by the three-way valve 68 and only the freezing temperature zone such as the freezing compartment 22 is cooled by the freezing evaporator 54.

【００７３】これにより、冷凍温度帯に高負荷が投入さ
れ、温度変動が大きくなる前に冷凍温度帯の冷却を行な
うことができ、温度変動を最小限に抑制することができ
る。As a result, a high load is applied to the freezing temperature zone and the freezing temperature zone can be cooled before the temperature variation becomes large, and the temperature variation can be suppressed to the minimum.

【００７４】（第６の実施例）第６の実施例は、冷蔵温
度帯の温度が下限設定温度（０〜３℃）に近く、冷凍温
度帯の温度変動が大きい場合の制御方法である。なお、
この温度変動は、１０分前のｙ／ｘに対して５倍以上と
している。(Sixth Embodiment) A sixth embodiment is a control method when the temperature in the refrigerating temperature zone is close to the lower limit set temperature (0 to 3 ° C.) and the temperature fluctuation in the freezing temperature zone is large. In addition,
This temperature variation is set to 5 times or more of y / x 10 minutes ago.

【００７５】この場合、冷媒流路は切り替えず、冷蔵用
送風機５４を停止し、冷凍用送風機５６を運転して冷凍
温度帯の部屋のみを冷却する。In this case, the refrigerant flow path is not switched, the refrigeration blower 54 is stopped, and the refrigeration blower 56 is operated to cool only the room in the freezing temperature zone.

【００７６】これにより、冷凍室２２等の冷凍温度帯に
高負荷が投入され、温度変動が大きくなる前に冷凍温度
帯の冷却を行ない温度変動を最小限に抑制することがで
きる。また、かかる場合、三方弁６８の切り替え制御を
しないため、三方弁６８の切り替え回数の削減と省電力
を図ることができる。As a result, a high load is applied to the freezing temperature zone of the freezing compartment 22 or the like, and the freezing temperature zone is cooled before the temperature variation becomes large, so that the temperature variation can be suppressed to the minimum. Further, in such a case, since the switching control of the three-way valve 68 is not performed, it is possible to reduce the number of times the three-way valve 68 is switched and save power.

【００７７】（第７の実施例）第７の実施例は、冷蔵温
度帯の冷却を始めた直後（１０分未満）で冷凍温度帯の
温度変動が大きい場合の制御方法である。なお、この温
度変動は、１０分前のｙ／ｘに対して５倍以上としてい
る。(Seventh Embodiment) A seventh embodiment is a control method in the case where the temperature variation in the freezing temperature zone is large immediately after the cooling in the refrigerating temperature zone is started (less than 10 minutes). It should be noted that this temperature change is set to be 5 times or more as much as y / x 10 minutes before.

【００７８】この場合も冷媒流路は切り替えず、２つの
ファン、つまり冷蔵用送風機５４と冷凍用送風機５６を
同時に最小回転数で運転し、両温度帯の部屋を冷却する
ようにしている。Also in this case, the refrigerant flow paths are not switched, and the two fans, that is, the refrigeration blower 54 and the refrigeration blower 56 are simultaneously operated at the minimum rotation speed to cool the room in both temperature zones.

【００７９】これにより、冷蔵温度帯を冷却し始めた直
後に冷凍温度帯の負荷が変動したら、両温度帯の変動を
冷却することで、冷蔵温度帯と冷凍温度帯との温度上昇
を抑制することができる。As a result, if the load of the freezing temperature zone fluctuates immediately after the cooling of the refrigerating temperature zone is started, the temperature rise between the refrigerating temperature zone and the freezing temperature zone is suppressed by cooling the variation of both temperature zones. be able to.

【００８０】（第８の実施例）第８の実施例は、冷凍温
度帯を冷却中に冷凍温度帯の部屋の負荷が変動し、温度
変動を検出した場合の制御方法である。この場合、温度
変動に応じた圧縮機４６と冷凍用送風機５６の回転数
（冷凍能力）に変えて制御するものである。すなわち、
図３に示す１０分前のｙ／ｘに対して５倍以上ならば、
圧縮機４６の回転数を８０ｒｐｓ、冷凍用送風機５６の
回転数を３０００ｒｐｍの最大回転数になるように制御
する。(Eighth Embodiment) An eighth embodiment is a control method in the case where the load of the room in the freezing temperature zone fluctuates during cooling of the freezing temperature zone and the temperature fluctuation is detected. In this case, the number of rotations (refrigerating capacity) of the compressor 46 and the refrigeration blower 56 is controlled according to the temperature fluctuation. That is,
If it is 5 times or more than y / x 10 minutes before shown in FIG. 3,
The rotation speed of the compressor 46 is controlled to 80 rps, and the rotation speed of the refrigeration blower 56 is controlled to the maximum rotation speed of 3000 rpm.

【００８１】これにより温度変動を最小限に抑制するこ
とができる。As a result, the temperature fluctuation can be suppressed to the minimum.

【００８２】（第９の実施例）第９の実施例は、冷凍温
度帯の冷却を始めた直後で、冷蔵温度帯の温度変動が小
さい場合の制御方法である。なお、この温度変動は、１
０分前のｙ／ｘに対して５倍未満としている。(Ninth Embodiment) A ninth embodiment is a control method when the temperature fluctuation in the refrigerating temperature zone is small immediately after the cooling in the freezing temperature zone is started. Note that this temperature fluctuation is 1
It is less than 5 times the y / x of 0 minutes ago.

【００８３】冷凍温度帯を冷却中に冷蔵温度帯の部屋の
負荷が変動し温度変動を検出した時、冷媒流路はそのま
まで圧縮機４６の回転数（３０〜８０ｒｐｓ）と冷凍用
送風機５６の回転数（１０００〜３０００ｒｐｍ）を変
えて冷凍温度帯での冷凍能力を上げる。When the load of the room in the refrigerating temperature zone fluctuates during cooling of the refrigerating temperature zone and temperature variation is detected, the refrigerant flow path is kept as it is and the rotation speed (30 to 80 rps) of the compressor 46 and the refrigerating blower 56. Increase the refrigerating capacity in the freezing temperature range by changing the rotation speed (1000 to 3000 rpm).

【００８４】これにより、冷凍能力を上げて冷凍温度帯
の冷却を早く終了させて、冷蔵温度帯の冷却に移り、温
度変動を最小限に抑制することができる。As a result, the refrigerating capacity can be increased, the cooling of the freezing temperature zone can be quickly completed, and the cooling of the refrigerating temperature zone can be started to minimize the temperature fluctuation.

【００８５】（第１０の実施例）第１０の実施例は、冷
凍温度帯の冷却を始めた直後で、冷蔵温度帯の温度変動
が大きい場合の制御方法である。なお、この温度変動
は、１０分前のｙ／ｘに対して５倍以上としている。(Tenth Embodiment) The tenth embodiment is a control method in the case where the temperature fluctuation in the refrigerating temperature zone is large immediately after the cooling in the freezing temperature zone is started. It should be noted that this temperature change is set to be 5 times or more as much as y / x 10 minutes before.

【００８６】この場合、三方弁６８により冷媒流路を切
り替えて、冷蔵用送風機５４と冷凍用送風機５６を同時
に最小回転数（１０００ｒｐｍ）で運転し、両温度帯の
部屋を冷却するようにしている。In this case, the refrigerant passages are switched by the three-way valve 68, and the refrigerating blower 54 and the refrigerating blower 56 are simultaneously operated at the minimum rotation speed (1000 rpm) to cool the room in both temperature zones. .

【００８７】これにより、冷凍温度帯を冷却し始めた直
後に冷蔵温度帯の負荷が変動したら、両温度帯の部屋を
冷却し、両温度帯の温度上昇を抑制することができる。Thus, if the load in the refrigerating temperature zone fluctuates immediately after cooling the freezing temperature zone, the room in both temperature zones can be cooled and the temperature rise in both temperature zones can be suppressed.

【００８８】（第１１の実施例）第１１の実施例は、冷
凍温度帯の温度が下限設定温度（−２０〜−２２℃）に
近く、冷蔵温度帯の温度変動が大きい場合の制御方法で
ある。なお、この温度変動は、１０分前のｙ／ｘに対し
て５倍以上としている。(Eleventh Embodiment) The eleventh embodiment is a control method when the temperature in the freezing temperature zone is close to the lower limit set temperature (-20 to -22 ° C) and the temperature fluctuation in the refrigerating temperature zone is large. is there. It should be noted that this temperature change is set to be 5 times or more as much as y / x 10 minutes before.

【００８９】この場合、三方弁６８により冷媒流路を切
り替えて、冷蔵温度帯の部屋のみを冷却する。これによ
り、冷却中の冷凍温度帯が下限設定温度に近く、冷蔵温
度帯の負荷が大きい場合は、冷蔵温度帯の部屋の冷却に
移行することで、温度上昇を抑制することができる。In this case, the refrigerant passage is switched by the three-way valve 68 to cool only the room in the refrigerating temperature zone. Accordingly, when the freezing temperature zone during cooling is close to the lower limit set temperature and the load of the refrigeration temperature zone is large, the temperature rise can be suppressed by shifting to cooling the room in the refrigeration temperature zone.

【００９０】（第１２の実施例）第１２の実施例は、冷
蔵温度帯を冷却中に冷凍温度帯の部屋の負荷変動があ
り、温度変動を検出して冷却が必要と判断しても、冷凍
温度帯用の冷凍用蒸発器５２を除霜した直後（１０分未
満）であれば、冷凍用送風機５６を遅れて動作させるよ
うにしたものである。(Twelfth Embodiment) In the twelfth embodiment, the load of the room in the freezing temperature zone fluctuates during cooling of the refrigerating temperature zone, and even if it is determined that cooling is necessary by detecting the temperature variation, Immediately after defrosting the freezing evaporator 52 for the freezing temperature zone (less than 10 minutes), the freezing fan 56 is operated with a delay.

【００９１】これにより、除霜直後の冷凍用蒸発器５２
は温度が高いため、冷凍用送風機５６を運転させると庫
内温度を上昇させてしまうが、冷凍用送風機５６を遅れ
て動作させることで、つまり、冷媒を十分に流し、冷凍
用蒸発器５２が十分に冷えてから冷却を開始すること
で、除霜直後による庫内温度の上昇を防止することがで
きる。As a result, the freezing evaporator 52 immediately after defrosting
Since the temperature is high, operating the refrigeration blower 56 raises the temperature inside the refrigerator. However, by operating the refrigeration blower 56 with a delay, that is, the refrigerant is sufficiently flowed, and the refrigeration evaporator 52 is By starting cooling after cooling sufficiently, it is possible to prevent the temperature inside the refrigerator from rising immediately after defrosting.

【００９２】なお、上記各実施例で用いている冷凍温度
帯とは冷凍室２２であり、また、冷蔵温度帯は冷凍室２
２以外の冷蔵室１４、野菜室１６、温度切替室１８、製
氷室２０、チルド室２６等である。また、各部屋には庫
内温度を検出する温度センサが設けられている。The freezing temperature zone used in each of the above embodiments is the freezing compartment 22, and the refrigerating temperature zone is the freezing compartment 2.
The refrigerating room 14 other than 2, the vegetable room 16, the temperature switching room 18, the ice making room 20, the chilled room 26 and the like. Further, each room is provided with a temperature sensor that detects the temperature inside the refrigerator.

【００９３】[0093]

【発明の効果】以上により本発明の冷蔵庫の制御方法で
あると、少なくとも一部屋の負荷変動によって、温度セ
ンサの検出温度が変動した時、検出温度を逸早く適正温
度範囲内に収めることができ、負荷変動に応じた冷凍能
力を発揮し、庫内の温度変動を最小限に抑制することが
できる。また、冷蔵温度帯の吹出口付近の食品の凍結を
防止でき、さらには最適蒸発温度で運転するため省電力
化を図ることができる。As described above, according to the refrigerator control method of the present invention, when the temperature detected by the temperature sensor changes due to the load change of at least one room, the detected temperature can be swiftly kept within the proper temperature range. The refrigerating capacity according to the load fluctuation can be exerted, and the temperature fluctuation in the refrigerator can be suppressed to the minimum. Further, it is possible to prevent food from freezing in the vicinity of the outlet in the refrigerating temperature zone, and further, it is possible to save power because the operation is performed at the optimum evaporation temperature.

[Brief description of drawings]

【図１】本発明の冷凍サイクルの冷媒流路を示す図であ
る。FIG. 1 is a diagram showing a refrigerant channel of a refrigeration cycle of the present invention.

【図２】本発明の庫内側冷気の流れのダクト構成を示す
図である。FIG. 2 is a diagram showing a duct configuration of a cold air flow inside the refrigerator of the present invention.

【図３】本発明の庫内の温度変動を示す説明図である。FIG. 3 is an explanatory diagram showing temperature fluctuations in the refrigerator according to the present invention.

【図４】本発明の一実施例を示す冷蔵庫の正面図であ
る。FIG. 4 is a front view of a refrigerator showing an embodiment of the present invention.

【図５】同じく扉を開けた状態のキャビネットの正面図
である。FIG. 5 is a front view of the cabinet with the door open.

【図６】冷蔵庫のキャビネットの後方における縦断面図
である。FIG. 6 is a vertical cross-sectional view of the rear of the cabinet of the refrigerator.

【図７】図４におけるＡ−Ａ線断面図である。7 is a cross-sectional view taken along the line AA in FIG.

【図８】冷凍サイクルを構成する各装置の配置図であ
る。FIG. 8 is a layout view of each device that constitutes the refrigeration cycle.

【図９】冷媒流路を示すブロック図である。FIG. 9 is a block diagram showing a coolant channel.

【図１０】（ａ）は従来例の冷蔵庫の断面図である。（ｂ）は従来例の冷気の流れを示す図である。FIG. 10A is a sectional view of a conventional refrigerator. (B) is a figure which shows the flow of the cold air of a prior art example.

[Explanation of symbols]

１０冷蔵庫１４冷蔵室１５冷蔵室用温度センサ２２冷凍室２３冷凍室用温度センサ４６圧縮機５０冷蔵用蒸発器５２冷凍用蒸発器５４冷蔵用送風機５６冷凍用送風機５７制御装置６８三方弁 10 refrigerator 14 Refrigerator 15 Refrigerator temperature sensor 22 Freezer 23 Temperature sensor for freezer 46 compressor 50 Refrigerator evaporator 52 Freezing evaporator 54 Refrigerator blower 56 Refrigeration blower 57 Control device 68 three-way valve

フロントページの続き (72)発明者楠敦大阪府茨木市太田東芝町１番６号株式会社東芝大阪工場内 (56)参考文献特開昭59−221580（ＪＰ，Ａ) 特開平10−47827（ＪＰ，Ａ) 特開平10−19400（ＪＰ，Ａ) (58)調査した分野(Int.Cl.⁷，ＤＢ名) F25D 11/02 Front page continuation (72) Inventor Atsushi Kusunoki 1-6 Ota-Toshiba-cho, Ibaraki-shi, Osaka Inside the Osaka factory of Toshiba Corporation (56) Reference JP-A-59-221580 (JP, A) JP-A-10-47827 (JP, A) JP-A-10-19400 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) F25D 11/02

Claims

(57) [Claims]

1. A compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating chambers, and a freezing evaporator for a refrigerating temperature zone corresponding to a freezing chamber in an annular shape. Connect to form a refrigerant flow path, switch the refrigerant flow path to flow the refrigerant to the refrigeration evaporator,
A valve element for flowing refrigerant to the freezing evaporator is provided in the refrigerant flow path, a refrigerating blower for sending cold air to the refrigerating temperature zone is provided on the refrigerating evaporator side, and a freezing temperature zone on the freezing evaporator side. In a refrigerator equipped with a refrigeration blower that sends cold air to each room and a temperature sensor that detects the temperature inside the refrigerator in each room, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, the refrigerant The control means compensates the cooling power by switching the flow paths and controlling the rotation speed of the compressor or the blower for cooling air circulation, and the control means controls the freezing temperature while cooling the refrigeration temperature zone. A method of controlling a refrigerator, characterized in that, when a load changes in a strip room and a temperature rise is detected, the refrigerant flow path is not switched and the rotation speed of the compressor or the refrigeration blower is increased.

2. A compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating chambers, and a freezing evaporator for a refrigerating temperature zone corresponding to a freezing chamber in a ring shape. Connect to form a refrigerant flow path, switch the refrigerant flow path to flow the refrigerant to the refrigeration evaporator,
A valve element for flowing refrigerant to the freezing evaporator is provided in the refrigerant flow path, a refrigerating blower for sending cold air to the refrigerating temperature zone is provided on the refrigerating evaporator side, and a freezing temperature zone on the freezing evaporator side. In a refrigerator equipped with a refrigeration blower that sends cold air to each room and a temperature sensor that detects the temperature inside the refrigerator in each room, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, the refrigerant The control means compensates the cooling power by switching the flow paths and controlling the rotation speed of the compressor or the blower for cooling air circulation, and the control means controls the freezing temperature while cooling the refrigeration temperature zone. A method of controlling a refrigerator characterized in that, when a load changes in a zone room and a temperature rise is detected, the refrigerant flow path is switched to cool the room in the freezing temperature zone.

3. A compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating rooms, and a freezing evaporator for a refrigerating temperature zone corresponding to a freezing compartment in an annular shape. Connect to form a refrigerant flow path, switch the refrigerant flow path to flow the refrigerant to the refrigeration evaporator,
A valve element for flowing refrigerant to the freezing evaporator is provided in the refrigerant flow path, a refrigerating blower for sending cold air to the refrigerating temperature zone is provided on the refrigerating evaporator side, and a freezing temperature zone on the freezing evaporator side. In a refrigerator equipped with a refrigeration blower that sends cold air to each room and a temperature sensor that detects the temperature inside the refrigerator in each room, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, the refrigerant The control means compensates the cooling power by switching the flow paths and controlling the rotation speed of the compressor or the blower for cooling air circulation, and the control means controls the freezing temperature while cooling the refrigeration temperature zone. When the load changes in the zone room and a temperature rise is detected, without switching the refrigerant flow path,
A method for controlling a refrigerator, characterized in that the refrigeration blower is stopped and the refrigeration blower is operated to cool only the room in the freezing temperature zone.

4. A compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating chambers, and a freezing evaporator for a refrigerating temperature zone corresponding to a freezing chamber in an annular shape. Connect to form a refrigerant flow path, switch the refrigerant flow path to flow the refrigerant to the refrigeration evaporator,
A valve element for flowing refrigerant to the freezing evaporator is provided in the refrigerant flow path, a refrigerating blower for sending cold air to the refrigerating temperature zone is provided on the refrigerating evaporator side, and a freezing temperature zone on the freezing evaporator side. In a refrigerator equipped with a refrigeration blower that sends cold air to each room and a temperature sensor that detects the temperature inside the refrigerator in each room, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, the refrigerant The flow rate is switched, and the cooling means is compensated by the control means for controlling the rotation speed of the compressor or the blower for circulating cold air.The control means is for refrigerating temperature during cooling of the freezing temperature zone. A method for controlling a refrigerator, wherein the number of rotations of the compressor or the refrigeration blower is increased without switching the refrigerant flow path when the load changes in the strip room and a temperature rise is detected.

5. A compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating chambers, and a freezing evaporator for a refrigerating temperature zone corresponding to a freezing chamber in an annular shape. Connect to form a refrigerant flow path, switch the refrigerant flow path to flow the refrigerant to the refrigeration evaporator,
A valve element for flowing refrigerant to the freezing evaporator is provided in the refrigerant flow path, a refrigerating blower for sending cold air to the refrigerating temperature zone is provided on the refrigerating evaporator side, and a freezing temperature zone on the freezing evaporator side. In a refrigerator equipped with a refrigeration blower that sends cold air to each room and a temperature sensor that detects the temperature inside the refrigerator in each room, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, the refrigerant The flow rate is switched, and the cooling means is compensated by the control means for controlling the rotation speed of the compressor or the blower for circulating cold air.The control means is for refrigerating temperature during cooling of the freezing temperature zone. When the load changes in the zone room and a temperature rise is detected, the refrigerant flow path is switched to operate the refrigeration blower and the freezing blower at the same time to cool the refrigeration temperature zone and the freezing temperature zone room. How to control the refrigerator .

6. A compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating chambers, and a freezing evaporator for a refrigerating temperature zone corresponding to a freezing chamber in an annular shape. Connect to form a refrigerant flow path, switch the refrigerant flow path to flow the refrigerant to the refrigeration evaporator,
A valve element for flowing refrigerant to the freezing evaporator is provided in the refrigerant flow path, a refrigerating blower for sending cold air to the refrigerating temperature zone is provided on the refrigerating evaporator side, and a freezing temperature zone on the freezing evaporator side. In a refrigerator equipped with a refrigeration blower that sends cold air to each room and a temperature sensor that detects the temperature inside the refrigerator in each room, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, the refrigerant The flow rate is switched, and the cooling means is compensated by the control means for controlling the rotation speed of the compressor or the blower for circulating cold air.The control means is for refrigerating temperature during cooling of the freezing temperature zone. A method of controlling a refrigerator characterized in that, when a load changes in a zone room and a temperature rise is detected, the refrigerant flow path is switched to cool the room in the refrigeration temperature zone.

7. A compressor, a condenser, a refrigerating evaporator for a refrigerating temperature zone corresponding to a plurality of refrigerating chambers, and a freezing evaporator for a refrigerating temperature zone corresponding to a freezing chamber in an annular shape. Connect to form a refrigerant flow path, switch the refrigerant flow path to flow the refrigerant to the refrigeration evaporator,
A valve element for flowing refrigerant to the freezing evaporator is provided in the refrigerant flow path, a refrigerating blower for sending cold air to the refrigerating temperature zone is provided on the refrigerating evaporator side, and a freezing temperature zone on the freezing evaporator side. In a refrigerator equipped with a refrigeration blower that sends cold air to each room and a temperature sensor that detects the temperature inside the refrigerator in each room, when the temperature detected by the temperature sensor fluctuates due to load fluctuations in at least one room, the refrigerant The control means compensates the cooling power by switching the flow paths and controlling the rotation speed of the compressor or the blower for cooling air circulation, and the control means controls the freezing temperature while cooling the refrigeration temperature zone. If there is a load fluctuation in the room of the belt and it is determined that cooling is required by detecting a temperature rise, immediately after defrosting the refrigerating evaporator, the refrigerating blower is operated with a delay. .