JPS62119384A - Refrigerator - Google Patents

Abstract

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

Description

【発明の詳細な説明】 産業上の利用分野 本発明は強制通風方式のもので、冷凍室と冷蔵室と冷凍
と冷蔵若しくは第３の温度帯の温度切替が可能な切替室
を備えた冷蔵庫に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerator that is of a forced draft type and is equipped with a freezing chamber, a refrigerating chamber, and a switching chamber capable of switching between freezing and refrigeration or a third temperature range. .

従来の技術 従来例を第４図から第５図に従い説明する。図において
１は冷蔵庫本体で、外箱２、内箱３、及びこれら両箱２
，３間に充填さｎた断熱材４により構成さｎている。５
は第１の区画壁で、内部に冷却器６、強制通風用の送風
機子を収めており、上部に冷凍室８、下部に冷凍と冷蔵
若しくは第３の温度帯の温度切替可能な切替室９金区画
形成する。１０は第２の区画壁で、前記第１の区画壁の
下方に位置し、上部に前記切替室９了部に冷蔵室１１を
区画形成している。１２は冷却器θで冷却された冷気を
送風機７で前記冷凍室８、切替室９、冷蔵室１１に送風
するためのダクトであり、切替室９、冷蔵室１１の吐出
口１３．１４には夫々の冷気量を制御するダンパーサー
モスタット１５゜１６が設けらｎている。このうち前記
切替室９に設けたダンパーサーモスタット１５は温度調
節用のレバー１７の操作により冷気量調節用のフラップ
１５ａの開度金調節し、前記切替室の庫内温度を冷凍温
度帯（例えば−１２”Ｑ’Ｃ以下）と冷蔵温度帯（例え
ば０〜１０°Ｃ）若しくは第３の温度帯（例えば−３〜
ｏ’Ｃ）に制御可能としている。１８は冷凍室８内に設
けられたサーモスタットであり、冷凍室８の庫内温度を
検知して、圧縮機１９及び送風機７の運転を制御する。BACKGROUND ART A conventional example will be explained with reference to FIGS. 4 and 5. In the figure, 1 is the refrigerator main body, an outer box 2, an inner box 3, and both boxes 2.
, 3 is made up of a heat insulating material 4 filled between them. 5
is the first partition wall, which houses a cooler 6 and a blower for forced ventilation, a freezing compartment 8 in the upper part, and a switching compartment 9 in which the temperature can be switched between freezing and refrigeration or a third temperature range in the lower part. Gold compartments are formed. Reference numeral 10 denotes a second partition wall, which is located below the first partition wall, and defines a refrigerating chamber 11 at the end of the switching chamber 9 on its upper part. 12 is a duct for blowing cold air cooled by the cooler θ to the freezing compartment 8, switching compartment 9, and refrigerator compartment 11 using the blower 7; Damper thermostats 15 and 16 are provided to control the respective amounts of cold air. Among these, the damper thermostat 15 installed in the switching chamber 9 adjusts the opening degree of the flap 15a for adjusting the amount of cold air by operating the lever 17 for temperature adjustment, and adjusts the internal temperature of the switching chamber to the freezing temperature range (for example - 12"
o'C). 18 is a thermostat provided in the freezer compartment 8, which detects the internal temperature of the freezer compartment 8 and controls the operation of the compressor 19 and the blower 7.

２０及び２１は冷凍室８内に設けられた冷凍室吐出口、
及び冷凍室吸込口である。２２．２３は夫々、前記ダン
パーサーモスタット１５．１６’ｉ収めるコントロール
パネルであり、２４はコントロールパネル２２に設けら
れた切替室吐出口、２５はコントロールパネル２３に設
けられた冷蔵室吐出口である。２６は前記切換室９の天
面に設けた切替室吸込口、２アは前記冷蔵室１１用の冷
蔵室吸込口、であり冷蔵本体１側面の断熱材４内に設け
ら几たリターンダクト２８によって前記第１の区画壁５
の内部と連通している。20 and 21 are freezer compartment discharge ports provided in the freezer compartment 8;
and the freezer compartment suction port. Reference numerals 22 and 23 are control panels in which the damper thermostats 15 and 16'i are housed, 24 is a switching chamber outlet provided in the control panel 22, and 25 is a refrigerating chamber outlet provided in the control panel 23. 26 is a switching chamber suction port provided on the top surface of the switching chamber 9; 2A is a refrigerator compartment suction port for the refrigerator compartment 11; and a return duct 28 provided within the heat insulating material 4 on the side surface of the refrigerator main body 1. said first partition wall 5 by
communicates with the inside of.

かかる構成において冷却器６で冷却さｎた冷気は送風機
７によってダクト１２全介して冷凍室吐出口より冷凍室
に送ら几ると同時に同じくダクト１２金介して吐出口１
３．１４に設けたダンパーサーモスタット１５．１６に
より適Ｖ制御さｎた後、夫々切替室吐出口２４、冷蔵室
吐出口２６よυ切替室９、冷蔵室１１に供給さ九庫内を
冷却する。冷凍室８内を循環した冷気は冷凍室吸込口２
１より再び冷却器６にもどさｎる。切替室９内全循環し
た冷気は切替室吸込口２６より冷却器６にもどさｎ、る
。In this configuration, the cold air cooled by the cooler 6 is sent to the freezer compartment from the freezer compartment discharge port through the entire duct 12 by the blower 7, and at the same time is sent to the freezer compartment through the duct 12 through the discharge port 1.
After being appropriately controlled by the damper thermostats 15 and 16 installed in 3.14, the air is supplied to the switching chamber 9 and the refrigerator compartment 11 through the switching chamber outlet 24 and the refrigerator compartment outlet 26, respectively, to cool the inside of the refrigerator. . The cold air that circulated in the freezer compartment 8 is passed through the freezer compartment suction port 2.
It is returned to the cooler 6 from step 1. The cold air completely circulated within the switching chamber 9 is returned to the cooler 6 through the switching chamber suction port 26.

冷蔵室１１内を循環した冷気は冷蔵室吸込口２７より、
リターンダクト２日を介して冷却器６にもどさｎる。The cold air that circulated inside the refrigerator compartment 11 is passed through the refrigerator compartment suction port 27.
It is returned to the cooler 6 via the return duct for 2 days.

冷凍室８の庫内温度制御はサーモスタットによって行な
わ扛庫内温度が要冷却温度以上になると送１虱機ア及び
圧縮機全運転し不要冷却温度以下に低下すると運転を停
止するようになっている。The internal temperature of the freezer compartment 8 is controlled by a thermostat, and when the internal temperature exceeds the required cooling temperature, the feeder and compressor are fully operated, and when the temperature drops below the unnecessary cooling temperature, the operation is stopped. .

切替室９の温度調節については、レバー１了の操作によ
りダンパーサーモスタット１５のフラップ１５ａの開度
を調節して、冷蔵若しくは第３の温度帯を所望する場合
には開度を比較的小さくして送風し、冷凍温度帯全所望
する場合にはフラップ１５ａの開度を十分に犬きく制御
して、多量の冷気を送風するようにしている。Regarding the temperature adjustment of the switching chamber 9, the opening degree of the flap 15a of the damper thermostat 15 is adjusted by operating the lever 1, and when refrigeration or the third temperature range is desired, the opening degree is made relatively small. When it is desired to blow air through the entire freezing temperature range, the opening degree of the flap 15a is sufficiently controlled to blow a large amount of cold air.

発明が解決しようとする問題点 しかしながら上記のような構成においては、切替室９を
冷凍温度帯に設定している時において、切替室９の庫内
温度が要冷却温度以上に上昇した場合、圧縮機１９及び
送風機７の運転制御は冷凍室８の庫内温度に応じて行な
わ１−る。したがって、冷凍室８の庫内温度が要冷却温
度以上に上昇するまでは切替室９も冷却さ几ず、又、切
替室９が不要冷却温度であっても冷凍室８が要冷却温度
であ：ｌ′１−　！−ｆ、切替室切替冷却さ−１てしま
うという欠点を有していた。Problems to be Solved by the Invention However, in the above configuration, when the switching chamber 9 is set to the freezing temperature range, if the internal temperature of the switching chamber 9 rises above the required cooling temperature, the compression The operation of the refrigerator 19 and the blower 7 is controlled according to the internal temperature of the freezer compartment 8. Therefore, the switching compartment 9 will not be cooled until the internal temperature of the freezing compartment 8 rises above the required cooling temperature, and even if the switching compartment 9 is at the unnecessary cooling temperature, the freezing compartment 8 is at the required cooling temperature. :l'1-! -f, the switching chamber had the disadvantage of being switched and cooled.

本発明は上記問題点を解消するものであり、冷凍室が不
要冷却湿度であっても切替室が要冷却温度になれば切替
室の冷却を行ない、冷凍室が要冷却温度であっても切替
室が不要冷却温度であｎば切替室の冷却を行なわないよ
うにしたものである。The present invention solves the above-mentioned problems, and even if the freezing chamber has unnecessary cooling humidity, the switching chamber will be cooled if the switching chamber reaches the temperature that requires cooling, and even if the freezing chamber is at the temperature that requires cooling, the switching chamber will be cooled. The switching chamber is not cooled if the chamber is at an unnecessary cooling temperature.

問題点を解決するための手段 上記問題点を解決するため本発明の冷蔵庫は冷凍室への
冷気量を制御する冷凍室電動ダンパーを設け、切替室を
冷凍温度帯に設定時は冷凍室及び切替室の庫内温度のど
ちらか一方でも要冷却温度にある時は圧縮機及び送風機
の運転を行なうとともに、冷凍室及び切替室が要冷却温
度の時は夫々冷凍室電動ダンパー及び切替室温度調節用
の切替室電動ダンパーのフラップを開き、不要冷却温度
の時は夫々のフラップを閉じるようにしたものである０ 作　　　用 上記手段により切替室を冷凍温度帯に設定した時、冷凍
室が不要冷却温度であっても切替室が要冷却温度になれ
ば切替室の冷却を行なう事が出来、又、冷凍室が要冷却
温度であって圧縮機、及び送風機が運転されている場合
であっても切替室が不要冷却温度であれば切替室への冷
気の循環を停止させ不要な冷却をしないようにする事が
出来る。Means for Solving the Problems In order to solve the above problems, the refrigerator of the present invention is provided with a freezer compartment electric damper that controls the amount of cold air flowing into the freezer compartment, and when the switching compartment is set to the freezing temperature range, the freezing compartment and switching When either of the internal temperatures in the room is at the required cooling temperature, the compressor and blower are operated, and when the freezer compartment and switching compartment are at the required cooling temperature, the freezer compartment electric damper and switching compartment temperature adjustment are operated, respectively. The flaps of the electric damper in the switching chamber are opened, and when the temperature is at an unnecessary cooling temperature, each flap is closed. Even if the switching room reaches the required cooling temperature, the switching room can be cooled, and even if the freezer compartment is at the required cooling temperature and the compressor and blower are operating, switching can be performed. If the room is at an unnecessary cooling temperature, the circulation of cold air to the switching room can be stopped to prevent unnecessary cooling.

実施例 以下、本発明の一実施例を第１図から第３図に従い説明
する。尚、従来例と同一構成部においては同一符号を付
は説明を省略する。図において、２９はコントロールパ
ネル２２の内部に収められた切替室電動ダンパーであり
、フラップ２９ａの開閉動作により切替室９へ循環する
冷気量を制御する。３０は冷凍室８内に設けら几た冷凍
室温度検知器、３１は切替室９内に設けられた切替室温
度検知器である。３２は切替スイッチであり切替室９の
庫内温度を冷凍温度帯と冷蔵温度帯若しくは第３の温度
帯の切替を行なう。３３はダクト１２内の冷凍室側に設
けた冷凍室電動ダンパーでありそのフラップ３３ａの開
閉動作により冷凍室８への冷気量を制御する。EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3. Incidentally, the same reference numerals are given to the same components as those in the conventional example, and the explanation thereof will be omitted. In the figure, 29 is a switching chamber electric damper housed inside the control panel 22, and controls the amount of cold air circulating to the switching chamber 9 by opening and closing a flap 29a. Reference numeral 30 indicates a freezer temperature sensor provided in the freezer compartment 8, and reference numeral 31 indicates a switching room temperature detector provided in the switching compartment 9. Reference numeral 32 denotes a changeover switch that switches the internal temperature of the changeover chamber 9 between a freezing temperature zone and a refrigerating temperature zone or a third temperature zone. Reference numeral 33 denotes a freezer compartment electric damper provided on the freezer compartment side in the duct 12, and controls the amount of cold air to the freezer compartment 8 by opening and closing its flap 33a.

３４は制御回路でマイクロコンピュータ（ＣＰＵ）３６
、ＲＡＭ３６　、ＲＯＭ３７等より形成さｎており、Ｒ
ＯＭ３７には動作の確認順位および、その時の状態によ
り次の動作を決めるプログラムが格納さｎている。34 is a control circuit and a microcomputer (CPU) 36
, RAM36, ROM37, etc., and R
The OM 37 stores a program that determines the order of operation confirmation and the next operation based on the state at that time.

３８．３９．４０はそｆぞれ運転用リレー、冷凍室ダン
パー用リレー、切替室ダンパー用リレーであり、それぞ
扛内部にリレー接点３８ａ、３９ａ。38, 39, and 40 are respectively a driving relay, a freezer compartment damper relay, and a switching compartment damper relay, and each has relay contacts 38a and 39a inside the relay.

４０ａ’ｉ持っており制御回路３４からの信号によりそ
れぞれ、圧縮機１９と送風機７、冷凍室電動ダンパー３
３、切替室電動ダンパー２９への通電を制御する。40a'i, and the compressor 19, the blower 7, and the freezer compartment electric damper 3 are activated by signals from the control circuit 34, respectively.
3. Control the energization to the switching chamber electric damper 29.

以上の構成における動作について第３図を参考に説明を
行なう。電源を投入すると冷凍室温度検知器３ｏ、切替
室温度検知器３１、切替スイッチ３２の各状態をステッ
プ１として入力とり込みをしＲＡＭ３６に記憶する。次
にＲＡＭ３６より切替スイッチ３２の状態を読み出し、
切替スイッチ３２がＯＮ（冷凍温度帯）か０ＦＦ（冷蔵
温度帯あるいは第３の温度帯）全ステップ２として判断
する。ステップ２で切替スイッチ３２がＯＦＦと判断さ
れると、ステップ３として冷凍室ダンパー用リレー３９
のリレー接点３９　ａ　ｆ　ＯＮ　Ｌ冷凍室電動ダンパ
ー３３のフラップ３３ａｆ：開らく。次にステップ４と
してＲＡＭ３６より切替室温度検知器３１の状態を読み
出し切替室９温度が設定温度以下であるかを判断する。The operation of the above configuration will be explained with reference to FIG. 3. When the power is turned on, the states of the freezer compartment temperature detector 3o, switching compartment temperature detector 31, and changeover switch 32 are inputted as step 1 and stored in the RAM 36. Next, the state of the selector switch 32 is read from the RAM 36,
It is determined that the changeover switch 32 is ON (freezing temperature zone) or OFF (refrigerating temperature zone or third temperature zone) in all steps 2. If it is determined in step 2 that the changeover switch 32 is OFF, then in step 3 the freezer compartment damper relay 39
Relay contact 39 a f ON L flap 33 af of freezer compartment electric damper 33: Open. Next, in step 4, the state of the switching chamber temperature detector 31 is read out from the RAM 36 and it is determined whether the temperature of the switching chamber 9 is below the set temperature.

切替室９温度が設定温度以下であればステップ５として
切替室ダンパー用リレー４０のリレー接点４０ａを０Ｆ
ＦＬ切替室電動ダンパー２９のフラップ２９ａ’ｉ閉じ
て切替室９内への冷気の循環全停止する０ステツプ４に
て切替室９温度が設定温度以下でないと判断さｎるとス
テップ６として切替室ダンパー用リレー４０のリレー接
点４０　ａ全ＯＮし切替室電動ダンパー２９のフラップ
２９ａを開らき、切替室９内に冷気を循環させる。ステ
ップ５及びステップ６の次はステップ７としてＲＡＭ３
６より冷凍室温度検知５３１の状態を読み出し、冷凍室
８温度が設定温度以下であるかを判断する。冷凍室８温
度が設定温度以下であ′ｎばステップ８として運転用リ
レー３８のリレー接点３８ａをＯＦＦし圧縮機１９及び
送風機７（５ＯＦＦするステップ７にて冷凍室８温度が
設定温度以下でないと判断さｎると、ステップ９として
運転用リレー３８のリレー接点３８ａをＯＮし圧縮機１
９及び送風機ＴをＯＮし冷却全行なう。ステップ８、ス
テップ９の動作の次は再びステップ１へもどり、以上一
連の動作が繰り返えされる。ステップ２にて切替室スイ
ッチ３２がＯＮと判断されると次にステップ１０として
ＲＡＭ３６より切替室温度検知器３１の状態が読み出さ
れ切替室９温度が冷凍時設定温度以下であるかどうかを
判断する。ステップ１ｏにて切替室９湛度が冷凍時設定
温度以下であると判断されるとステップ１１として切替
室ダンパー用リレー４０のリレー接点４０　ａ　ｆ○Ｆ
ＦＬ切替室電切替ンパー２９のフラップ２９ａｉ閉じて
切替室９への冷気の循環を停止する。ステップ１１０次
はステップ１２としてＲＡＭ３６より冷凍室温度検知機
３０の状態を読み出し冷凍室８温度が設定塩度以下であ
るかを判断する。ステップ１２にて冷原案８昌度が設定
温度以下であると判断さ九るとステップ１３として運転
用リレー３８のリレー接点３８ａをＯＦＦし、圧縮機１
９及び送風接子をＯＦＦして冷却を停止する。ステップ
１２にて冷凍室８温度が設定温度以下ではないと判断さ
ｎるとステップ１４として運転用リレー３８のリレー接
点３８ａをＯＮ（、、圧縮機１９及び送風機７をＯＮし
て冷却を行なう。ステップ１０にて切替室９温度が冷凍
時設定温度以下でないと判断されると、ステップ１６と
して切替室ダンパー用リレー４ｏのリレー接点４０ａを
ＯＮＩ、切替室電動ダンパー２９のフラップ２９ａｉ開
らく、ステップ１５の次はステップ１６として運転用リ
レー３８のリレー接点３８ａをＯＮＬ、圧縮機１９及び
送風機７ｆｆ：ＯＮｌ、冷却を行なう。ステップ１６の
次はステップ１了としＲＡＭ３６より冷凍室温度検知器
３゜の状態を読み出し冷凍室８混度が設定温度以下であ
るかを判断する。ステップ１７で冷凍室８温度が設定温
度以下であると判断さｎるとステップ１日として冷凍室
ダンパー用リレー３９のリレー接点３９ａをＯＦＦし冷
凍室電動ダンパー３３のフラップ３３ａ金閉じて冷凍室
８の冷却を停止する。ステップ１７にて冷凍室８温度が
設定温度以下でないと判断さｎると、ステップ１９とし
て冷凍室ダンパー用リレー３９のリレー接点３９ａをＯ
ＮＩ、、冷凍室電動ダンパー３３のフラップ３３ａを開
らいて冷凍室８の冷却を行なう。If the temperature of the switching chamber 9 is below the set temperature, as step 5, the relay contact 40a of the switching chamber damper relay 40 is set to 0F.
The flap 29a'i of the FL switching chamber electric damper 29 is closed to completely stop the circulation of cold air into the switching chamber 9. If it is determined in step 4 that the temperature of the switching chamber 9 is not below the set temperature, the switching chamber is closed in step 6. The relay contacts 40a of the damper relay 40 are fully turned ON, the flap 29a of the switching chamber electric damper 29 is opened, and cold air is circulated within the switching chamber 9. After step 5 and step 6, step 7 is RAM3.
6, the state of the freezer compartment temperature detection 531 is read out, and it is determined whether the freezer compartment 8 temperature is below the set temperature. If the freezing compartment 8 temperature is below the set temperature, the relay contact 38a of the operating relay 38 is turned off in step 8, and the compressor 19 and the blower 7 (5) are turned off.If the freezing compartment 8 temperature is not below the set temperature in step 7, If it is determined that the
Turn on 9 and blower T to complete cooling. After the operations in steps 8 and 9, the process returns to step 1, and the above series of operations is repeated. When it is determined that the switching chamber switch 32 is ON in step 2, the state of the switching chamber temperature detector 31 is read out from the RAM 36 in step 10, and it is determined whether the switching chamber 9 temperature is below the set temperature for freezing. do. When it is determined in step 1o that the switching chamber 9 filling degree is below the set temperature during freezing, the relay contact 40 a f○F of the switching chamber damper relay 40 is activated in step 11.
The flap 29ai of the FL switching room electric switch damper 29 is closed to stop the circulation of cold air to the switching room 9. Step 110 Next, as step 12, the state of the freezer compartment temperature detector 30 is read out from the RAM 36 and it is determined whether the freezer compartment 8 temperature is below the set salinity. If it is determined in step 12 that the cold draft 8 degrees is below the set temperature, in step 13 the relay contact 38a of the operating relay 38 is turned OFF, and the compressor 1
9 and turn off the ventilation connector to stop cooling. If it is determined in step 12 that the temperature of the freezer compartment 8 is not lower than the set temperature, in step 14 the relay contact 38a of the operating relay 38 is turned on (and the compressor 19 and blower 7 are turned on to perform cooling. If it is determined in step 10 that the temperature of the switching chamber 9 is not lower than the set temperature during freezing, in step 16 the relay contact 40a of the switching chamber damper relay 4o is turned on, and the flap 29ai of the switching chamber electric damper 29 is opened, and in step 15 Next, in step 16, the relay contact 38a of the operation relay 38 is turned ONL, the compressor 19 and the blower 7ff:ONl, and cooling is performed.The next step is to complete step 1 and read the state of the freezer compartment temperature sensor 3° from the RAM 36. It is determined whether the temperature in the freezer compartment 8 is below the set temperature.If it is determined in step 17 that the temperature in the freezer compartment 8 is below the set temperature, the relay contact of the freezer compartment damper relay 39 is determined as step 1. 39a and closes the flap 33a of the freezer compartment electric damper 33 to stop cooling the freezer compartment 8.If it is determined in step 17 that the temperature in the freezer compartment 8 is not below the set temperature, in step 19 the freezer compartment damper is turned OFF. The relay contact 39a of the relay 39 for
NI. Open the flap 33a of the freezer compartment electric damper 33 to cool the freezer compartment 8.

ステップ１３、ステップ１４、ステップ１８、ステップ
１９の動作の次は再びステップ１にもどり以上一連の動
作を繰り返し行なうようになっている０ 以上の動作により、切替室９を冷凍温度帯に設定した時
、冷凍室８と切替室９の温度制御が独立して行なえるた
め、冷凍室８が不要冷却温度であっても切替室９が要冷
却温度にすｎ２ば切替室９の冷却を行なう事ができ、ま
た冷凍室８が要冷却温度であって圧縮機１９及び送風機
７が運転さｎている場合であっても切替室９が不要冷却
温度であｎば切替室９への冷気の循環を低化させ不要な
冷却しないように出来る。After the operations in steps 13, 14, 18, and 19, the process returns to step 1 and repeats the above series of operations. 0 When the switching chamber 9 is set to the freezing temperature range by the above operations Since the temperatures of the freezing compartment 8 and the switching compartment 9 can be controlled independently, even if the freezing compartment 8 is at an unnecessary cooling temperature, the switching compartment 9 can be cooled as long as the switching compartment 9 reaches the required cooling temperature. Even if the freezer compartment 8 is at a required cooling temperature and the compressor 19 and blower 7 are operating, if the switching compartment 9 is at an unnecessary cooling temperature, the cold air will not be circulated to the switching compartment 9. It is possible to reduce the temperature and avoid unnecessary cooling.

発明の効果 以上の説明からも明らかなように、本発明の冷、ｉ、庫
は冷凍室への冷気量を制御する冷凍室電動ダンパーを設
け、切替室を冷凍温度帯に設定時は冷凍室及び切替室の
庫内温度のどちらか一方でも要冷却温度にある時は圧縮
機及び送風機の運転を行なうとともに、冷凍室及び切替
室が要冷却温度の時は、そ扛ぞれ冷凍室電動ダンパー及
び切替室温度調節用の切替室電動ダンパーのフラップを
開き、不要冷却温度の時は、そｎぞ扛のフラップ全閉じ
るようにしたものであるから、切替室を冷凍温度帯に設
定した時において、冷凍室と切替室の温度制御全独立し
て行なえ冷凍室が不要冷却温度であっても、切替室温度
がドア開閉や熱負荷の投入等により温度上昇した場合、
その温度上昇を検知して、即座に切替室を冷却する事が
出来、又冷凍室及び切替室の一方が不要冷却温度であり
、他の一方が要冷却湿度であって圧縮機及び送風機が運
転されている場合においても不要冷却温度の室には冷気
が循環さ几る事なく、むだな冷却を行わないように出来
る。Effects of the Invention As is clear from the above explanation, the refrigerator of the present invention is equipped with a freezer compartment electric damper that controls the amount of cold air flowing into the freezer compartment, and when the switching compartment is set to the freezing temperature range, the freezing compartment When the internal temperature of either the switching compartment or the switching compartment is at the required cooling temperature, the compressor and blower are operated, and when the freezing compartment and switching compartment are at the required cooling temperature, the freezer compartment electric damper is activated. The flap of the switching room electric damper for adjusting the temperature of the switching room is opened, and when the temperature is at an unnecessary cooling temperature, the flap of the damper is completely closed, so when the switching room is set to the freezing temperature range, , the temperature of the freezing compartment and switching compartment can be controlled completely independently. Even if the freezing compartment is at an unnecessary cooling temperature, if the switching compartment temperature rises due to opening/closing the door or applying a heat load,
The temperature rise can be detected and the switching room can be immediately cooled, and the compressor and blower can be operated when one of the freezing and switching rooms is at an unnecessary cooling temperature and the other is at a humidity that requires cooling. Even in the case where the cooling temperature is lowered, the cold air is not circulated in the room at an unnecessary cooling temperature, and unnecessary cooling can be prevented.

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

第１図は本発明の一実施例の冷蔵庫の側断面図、第２図
は同冷蔵庫の制御回路図、第３図は同制御回路の動作状
態を示すフローチャート、第４図は従来の冷蔵庫の側断
面図、第５図は同冷俵庫の制御回路図でおる。 ７・・・・送風機、８・・・・・冷凍室、９・・・・・
・切替室、１１・・・・・・冷蔵室、１２・・・・・・
ダクト、１９・・・・・・圧縮機、２９・・・・・・切
替室電動ダンパー、３０・・・・・冷凍室温度検知器、
３１・・・・・・切替室温度検知器、３２・・・・・・
切替スイッチ、３３・・・・・・冷凍室電動ダンパー。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名７−
−−道虱批 δ−冷凍！ ９−一一切賛宣 ！／−−−　μンＡ　室 第　ｌ　図　　　　　　　　　　　１２−　　ダクトノ
ｑ−−−ｂ已　Ｉ＠　ポ曵 ２ｑ　−−−ｓηＶｔ室電ら動り゛ンノ（−，３０−−
−々；東室渇」１東沖番 第３図 第４図Fig. 1 is a side sectional view of a refrigerator according to an embodiment of the present invention, Fig. 2 is a control circuit diagram of the same refrigerator, Fig. 3 is a flowchart showing the operating state of the control circuit, and Fig. 4 is a diagram of a conventional refrigerator. The side sectional view and FIG. 5 are control circuit diagrams of the cold bale storage. 7...Blower, 8...Freezer compartment, 9...
・Switching room, 11... Refrigerator room, 12...
Duct, 19...Compressor, 29...Switching chamber electric damper, 30...Freezing room temperature detector,
31...Switching room temperature detector, 32...
Changeover switch, 33... Freezer compartment electric damper. Name of agent: Patent attorney Toshio Nakao and 1 other person7-
−−Douyaku δ−Frozen! 9-I approve of everything! /--- μn A Room No. 1 Figure 12- Duct no.
- -; Tomuro Chiu'' 1 Higashi-Okiban Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] 冷凍室と冷蔵室と、冷凍と冷蔵若しくは第３の温度帯の
温度切替が可能な切替室と、冷却器により冷却された冷
気を前記冷凍室、冷蔵室及び切替室に強制通風させる送
風機及びダクトと、前記ダクトの前記切替室入口に設け
られ、そのフラップの開閉動作により前記切替室の温度
を冷凍から冷蔵までの温度調節可能な切替室電動ダンパ
ーと、前記冷凍室への令気量を調節する冷凍室電動ダン
パーと、前記冷凍室内に設けられた冷凍室温度検知器と
、前記切替室内に設けられた切替室温度検知器と、前記
切替室の温度帯を冷凍と冷蔵若しくは第３の温度帯を切
替える切替スイッチと、冷凍サイクルの圧縮機から成り
、前記切替スイッチが冷凍温度帯に設定時は、前記冷凍
室温度検知器及び切替室温度検知器によって検知される
冷凍室温度及び切替室温度がどちらか一方でも要冷却温
度になれば前記圧縮機及び送風機を運転するとともに、
冷凍室温度が不要冷却温度になると前記冷凍室電動ダン
パーのフラップを閉じ、要冷却温度になるとフラップを
開き、かつ切替室温度が不要冷却温度になると前記切替
室電動ダンパーのフラップを閉じ、要冷却温度になると
フラップを開くよう構成した冷蔵庫。A freezer compartment, a refrigerator compartment, a switching compartment capable of switching between freezing and refrigeration or a third temperature range, and a blower and duct for forcing cold air cooled by the cooler into the freezing compartment, refrigerator compartment, and switching compartment. a switching chamber electric damper provided at the entrance of the switching chamber of the duct and capable of adjusting the temperature of the switching chamber from freezing to refrigeration by opening and closing a flap thereof; a freezer compartment electric damper, a freezer compartment temperature detector provided in the freezing compartment, a switching compartment temperature detector provided in the switching compartment, and a temperature range of the switching compartment between freezing and refrigeration or a third temperature. It consists of a changeover switch that changes the zone and a compressor of the refrigeration cycle, and when the changeover switch is set to the freezing temperature zone, the freezing room temperature and the switching room temperature detected by the freezing room temperature detector and the switching room temperature sensor If either one reaches the required cooling temperature, the compressor and blower are operated, and
When the freezer compartment temperature reaches an unnecessary cooling temperature, the flap of the freezer compartment electric damper is closed, and when the temperature reaches the required cooling temperature, the flap is opened, and when the temperature of the switching compartment reaches an unnecessary cooling temperature, the flap of the switching compartment electric damper is closed, and the flap is closed when the switching compartment temperature reaches an unnecessary cooling temperature. A refrigerator configured to open a flap when the temperature is reached.