JP2650986B2 - refrigerator - Google Patents
refrigeratorInfo
- Publication number
- JP2650986B2 JP2650986B2 JP28082888A JP28082888A JP2650986B2 JP 2650986 B2 JP2650986 B2 JP 2650986B2 JP 28082888 A JP28082888 A JP 28082888A JP 28082888 A JP28082888 A JP 28082888A JP 2650986 B2 JP2650986 B2 JP 2650986B2
- Authority
- JP
- Japan
- Prior art keywords
- output
- outside air
- temperature
- timer
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/31—Low ambient temperatures
Landscapes
- Defrosting Systems (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、強制予冷却をして除霜運転を行なう除霜機
能を備えた冷蔵庫に関する。Description: TECHNICAL FIELD The present invention relates to a refrigerator having a defrosting function for performing a defrosting operation by forcibly pre-cooling.
従来の技術 近年の冷蔵庫では、除霜運転による庫内の温度上昇を
防止すべく、除霜時期をむかえると予め圧縮機を駆動し
て強制的に冷却運転を一定時間行なって上記温度上昇分
を見越して庫内を冷却しその後除霜運転を行ない、除霜
による庫内の温度上昇を防止することがよく行なわれて
いる。以下、従来例を第３図〜第４図に従い説明する。2. Description of the Related Art In recent refrigerators, in order to prevent the temperature inside the refrigerator from rising due to the defrosting operation, when the defrost timing is reached, the compressor is driven in advance and the cooling operation is forcibly performed for a predetermined time to reduce the temperature increase. It is common practice to cool the interior of the refrigerator in anticipation and then perform a defrosting operation to prevent the temperature inside the refrigerator from rising due to defrosting. Hereinafter, a conventional example will be described with reference to FIGS.
１は冷蔵庫本体、２は外箱、３は内箱、４は断熱材で
ある。５は冷凍室、６は冷蔵室、７は冷却室である。前
記冷却室７内には冷却器８と冷気を冷凍室５と冷蔵室６
に送風するファン９を有する。又前記冷却器８内には、
冷却器８に付いた霜を取り除く除霜ヒータ10が取り付け
られている。冷凍室５及び冷蔵室６の間にはダクト11が
あり、これを通して冷気は両室に流れる。前記冷凍室５
内には、冷凍サイクル（図示せず）の圧縮機12の運転，
停止を制御する為に冷凍室５内の温度を検知するサーミ
スタ13が取り付けてある。1 is a refrigerator main body, 2 is an outer box, 3 is an inner box, and 4 is a heat insulating material. 5 is a freezing room, 6 is a refrigerator room, 7 is a cooling room. In the cooling chamber 7, a cooler 8 and cold air are stored in a freezing chamber 5 and a chilling chamber 6.
Has a fan 9 that blows air. In the cooler 8,
A defrost heater 10 for removing frost from the cooler 8 is attached. There is a duct 11 between the freezer compartment 5 and the refrigeration compartment 6, through which cool air flows to both compartments. The freezer 5
The operation of the compressor 12 of the refrigeration cycle (not shown)
A thermistor 13 for detecting the temperature in the freezer compartment 5 for controlling the stop is attached.
次に電気回路について説明する。前記ファン９及び圧
縮機12は並列に接続されたリレー接点14に接続された
後、電源に接続されている。又前記除霜ヒータ10はリレ
ー接点15に接続された後、電源に接続されている。16は
冷凍室温度制御装置であり、前記冷凍室５内に設けたサ
ーミスタ13及び抵抗R1,R2,R3,コンパレータ17を備えて
いる。18は除霜制御装置であり、積算タイマ19,プリク
ールタイマ20を備えている。前記コンパレータ17の出力
は積算タイマ19のａ入力に接続されている。積算タイマ
19のｂ出力はOR回路21の一方の入力に、ｃ出力はプリク
ールタイマ20のｄ入力に接続されている。プリクールタ
イマ20のｅ出力は前記OR回路21のもう一方の入力に接続
され、ｆ出力はトランジスタ22のベースに接続されてい
る。尚前記トランジスタ22のコレクタにはリレー接点15
を開閉さす吸収用のリレーコイル23が接続されている。
又前記OR回路21の出力はトランジスタ24のベースに接続
され、コレクタにはリレー接点14を開閉さす吸収用のリ
レーコイル25が接続されている。ここで除霜制御装置18
の積算タイマ19及びプリクールタイマ20について説明す
る。積算タイマ19はａ入力とｂ及びｃ入力を持ち、ａ入
力にHigh信号（以下“H"と呼ぶ）が入力されるとｂ出力
より“H"信号を出力し、ａ入力にLow信号（以下“L"と
呼ぶ）が入力されるとｂ出力より“L"信号を出力する。
尚ａ入力の“H"の時間を積算し所定の積算時間（例えば
８時間）になるとｃ出力より“H"信号をワンパルス出力
する。プリクールタイマ20はｄ入力とｅ及びｆ出力を持
ち、ｄ入力に“H"信号がワンパルス入力されると一定時
間（例えば40分間）ｅ出力より“H"信号を出力し、その
後ｆ出力より一定時間（例えば20分間）“H"信号を出力
するように構成されている。Next, an electric circuit will be described. The fan 9 and the compressor 12 are connected to a power source after being connected to a relay contact 14 connected in parallel. The defrost heater 10 is connected to a power source after being connected to a relay contact 15. 16 is a freezing compartment temperature control device, the thermistor 13 and the resistor R 1 provided in the freezing chamber 5, R 2, R 3, and a comparator 17. Reference numeral 18 denotes a defrost control device, which includes an integration timer 19 and a precool timer 20. The output of the comparator 17 is connected to the a input of the integration timer 19. Integration timer
The b output 19 is connected to one input of the OR circuit 21, and the c output is connected to the d input of the precool timer 20. The e output of the precool timer 20 is connected to the other input of the OR circuit 21, and the f output is connected to the base of the transistor 22. The collector of the transistor 22 has a relay contact 15
The relay coil 23 for absorption which opens and closes is connected.
The output of the OR circuit 21 is connected to the base of a transistor 24, and the collector is connected to an absorbing relay coil 25 for opening and closing the relay contact 14. Here the defrost control device 18
Will be described. The integration timer 19 has an a input, a b input, and a c input. When a high signal (hereinafter referred to as "H") is input to the a input, an "H" signal is output from the b output, and a low signal (hereinafter, referred to as "a" input). When "L" is input, an "L" signal is output from the b output.
The "H" time of the "a" input is integrated, and when a predetermined integration time (for example, 8 hours) is reached, the "H" signal is output as one pulse from the "c" output. The precool timer 20 has a d input, an e output and an f output, and outputs a "H" signal from the e output for a certain period of time (for example, 40 minutes) when the "H" signal is input as one pulse to the d input, and then outputs the f output. It is configured to output an “H” signal for a fixed time (for example, 20 minutes).
かかる構成において、通常時、冷凍室５の温度が所定
値より高い場合は、サーミスタ13の抵抗値RTHが小さく
なってコンパレータ17の出力より“H"信号を出力する。
“H"信号が積算タイマ19のａ入力に入力されｂ出力より
“H"信号が出力され、OR回路21の出力も“H"となり、ト
ランジスタ24がONする。よってリレーコイル25が導通す
る。そしてリレー接点14がONして、圧縮機12及びファン
９が通電されて運転を行ない冷却器８が冷却作用を行な
い、ファン９により冷凍室５に強制通風されて冷却作用
を行なう。その後、冷凍室５が所定温度にまで冷却され
ればサーミスタ13の抵抗値RTHが大きくなりコンパレー
タ17の出力には“L"信号が出力され積算タイマ19のｂ出
力も“L"となり、プリクールタイマ20のｅ出力も“L"よ
りOR回路21の出力も“L"となりトランジスタ24がOFFし
てリレーコイル25への導通が遮断され、リレー接点14が
OFFして圧縮機12,ファン９が停止して冷却作用も停止す
る。以後この作用を繰り返して通常の冷却作用が行なわ
れる。In this configuration, during normal, when the temperature of the freezing compartment 5 is higher than the predetermined value, the resistance value R TH of the thermistor 13 becomes smaller and outputs the "H" signal from the output of the comparator 17.
The "H" signal is input to the a input of the integration timer 19, the "H" signal is output from the b output, the output of the OR circuit 21 also becomes "H", and the transistor 24 is turned on. Therefore, the relay coil 25 conducts. Then, the relay contact 14 is turned on, the compressor 12 and the fan 9 are energized to operate, the cooler 8 performs a cooling action, and the fan 9 forcibly ventilates the freezing chamber 5 to perform a cooling action. Thereafter, when the freezer compartment 5 is cooled to a predetermined temperature, the resistance value R TH of the thermistor 13 increases, an “L” signal is output to the output of the comparator 17, and the b output of the integration timer 19 also becomes “L”. When the e output of the cool timer 20 is also “L”, the output of the OR circuit 21 is also “L”, the transistor 24 is turned off, and the conduction to the relay coil 25 is cut off.
It turns off, the compressor 12 and the fan 9 stop, and the cooling action also stops. Thereafter, this operation is repeated to perform a normal cooling operation.
次に、積算タイマ19が所定時間積算されると、ｃ出力
より、ワンパルス“H"信号が出てプリクールタイマ20の
ｄ入力に入力される。よってプリクールタイマ20のｅ出
力より一定時間“H"信号が出力され、コンパレータ17の
出力状態に関係なくOR回路21の出力は“H"となりトラン
ジスタ24がONする。従って圧縮機12,ファン９が強制運
転され、冷凍室５を強制冷却させる。次にプリクールタ
イマ20のｅ出力より一定時間“H"信号が出力された後
は、ｆ出力より“H"信号を出力しトランジスタ22がON
し、リレーコイル23が導通し、リレー接点15がONし除霜
ヒータ10が通電され、冷却器８に付いた霜を取り除く。
すなわち積算タイマ19が所定時間積算すると強制的に圧
縮機12,ファン９を運転させ、一定時間強制冷却後に、
霜取作用を行なう。よって霜取前に強制予冷却させるこ
とにより、冷凍室５内の温度を低くすることにより、霜
取時に冷凍室５内の温度上昇を抑え、冷凍食品の劣化等
を防ぐ様に制御がされている。Next, when the integration timer 19 performs integration for a predetermined time, a one-pulse “H” signal is output from the output c and input to the d input of the precool timer 20. Therefore, an "H" signal is output for a certain period of time from the e output of the precool timer 20, and the output of the OR circuit 21 becomes "H" regardless of the output state of the comparator 17, and the transistor 24 is turned on. Accordingly, the compressor 12 and the fan 9 are forcibly operated to forcibly cool the freezing room 5. Next, after the "H" signal is output from the e output of the pre-cool timer 20 for a certain period of time, the "H" signal is output from the f output and the transistor 22 is turned on.
Then, the relay coil 23 is turned on, the relay contact 15 is turned on, the defrost heater 10 is energized, and the frost on the cooler 8 is removed.
That is, when the integration timer 19 integrates for a predetermined time, the compressor 12 and the fan 9 are forcibly operated, and after forced cooling for a predetermined time,
Performs defrosting action. Therefore, by controlling the temperature in the freezer compartment 5 by forcible pre-cooling before defrosting, the temperature in the freezer compartment 5 is controlled to be suppressed from rising during defrosting and the frozen food is prevented from deteriorating. I have.
発明が解決しようとする課題 しかしながら、この様な構成において外気温度が低い
場合において、プリクールタイマ20のｅ出力より“H"信
号が出て圧縮機12,ファン９の運転がされている強制予
冷却時間が長いと外気温度の影響の少ない低外気温度で
は冷蔵室６の温度が下がり０℃以下になり冷蔵食品を凍
結させ食品劣化を起こす。又逆に強制予冷却時間も短か
くすると外気温度が高い場合において、強制予冷却では
十分に冷却されず、霜取中の温度上昇を抑えきれず、冷
凍食品の劣化を起こすという問題点があった。However, in such a configuration, when the outside air temperature is low, an “H” signal is output from the e output of the pre-cool timer 20 to force the compressor 12 and the fan 9 to operate. If the cooling time is long, the temperature of the refrigerating compartment 6 drops to 0 ° C. or less at a low outside air temperature where the influence of the outside air temperature is small, and the refrigerated food freezes to cause food deterioration. Conversely, if the forcible pre-cooling time is also short, when the outside air temperature is high, the forcible pre-cooling does not provide sufficient cooling, cannot suppress the temperature rise during defrosting, and causes deterioration of frozen foods. Was.
本発明は上述した問題点を解消するものであり、低外
気温時での強制予冷却作用による冷蔵食品の凍結，高外
気温時での霜取中の温度上昇を抑え冷凍食品の劣化を防
ぎ、最適な強制予冷却時間にすることを目的としてい
る。The present invention has been made to solve the above-mentioned problems, and it is possible to prevent the frozen food from deteriorating by suppressing the freezing of the chilled food by the forced pre-cooling action at the low outside temperature and the temperature rise during the defrosting at the high outside temperature. The purpose is to make the optimal forced pre-cooling time.
課題を解決するための手段 上記課題を解決するために本発明の冷蔵庫は、外気温
度に応じて強制予冷却時間を変え、高外気温度の強制予
冷却時間より、低外気温度の強制予冷却時間を短かくす
る様に構成したものである。Means for Solving the Problems In order to solve the above-mentioned problems, the refrigerator of the present invention changes the forced pre-cooling time according to the outside air temperature, and sets the forced pre-cooling time at a low outside air temperature from the forced pre-cooling time at a high outside temperature. Is made shorter.
作用 本発明は上述した構成によって、外気温度が設定より
低い場合は、強制予冷却時間を高外気温度の場合より短
縮させ、冷蔵室の温度が０℃以下になるまでに強制予冷
却作用を終了させ、冷蔵食品の凍結を未然に防止する。According to the present invention, when the outside air temperature is lower than the set value, the present invention shortens the forced pre-cooling time compared to the case of the high outside air temperature, and terminates the forced pre-cooling operation until the temperature of the refrigerator reaches 0 ° C. or less. To prevent the frozen food from freezing.
実 施 例 以下、本発明の冷蔵庫の一実施例について第１図から
第２図に従い説明する。尚、従来と同一構成については
同一符号を付し、その詳細な説明を省略する。26は外気
温度検出装置で、冷蔵庫本体１の外殻の一部に取り付け
た外気温サーミスタ27,抵抗R4,R5,R6,コンパレータ28を
備えている。29は除霜制御装置で積算タイマ19,プリク
ールタイマ20及び30を備えている。プリクールタイマ30
について説明すると、ｇ入力とｈ及びｉ出力を持ち、そ
れぞれの入出力の役目はプリクールタイマ20のｄ入力,e
及びｆ出力と同一であるが、ｈ出力からの“H"信号の時
間がプリクールタイマ20のｅ出力の“H"信号の時間より
短かい（例えばｅ出力は40分間に対しｈ出力は20分
間）。尚、プリクールタイマ30のｉ出力の“H"信号時間
は、プリクールタイマ20のｆ出力の“H"信号時間と同一
である。コンパレータ28の出力は一方はAND回路31の一
方の入力に接続され、コンパレータ28の出力のもう一方
はインバータ回路32を介してAND回路33の一方の入力に
接続されている。又AND回路31及び33のもう一方の入力
には共に積算タイマ19のｃ出力が接続されている。次に
AND回路31の出力はプリクールタイマ20のｄ入力に、AND
回路33の出力はプリクールタイマ30のｇ入力に接続され
ている。プリクールタイマ20及び30のｅ及びｈ出力は共
にOR回路34の３入力の２入力に各々接続され、OR回路34
の残りの入力には積算タイマ19のｂ出力が接続されてい
る。OR回路34の出力はトランジスタ24のベースに接続さ
れている。次に、プリクールタイマ20及び30のｆ入力及
びｉ出力は共にOR回路35に入力され、OR回路35の出力は
トランジスタ22のベースに接続されている。Embodiment Hereinafter, an embodiment of the refrigerator of the present invention will be described with reference to FIGS. Note that the same components as those of the related art are denoted by the same reference numerals, and detailed description thereof will be omitted. 26 at ambient temperature sensing device, and a refrigerator outside air temperature thermistor 27 attached to a portion of the outer shell of the body 1, the resistor R 4, R 5, R 6 , the comparator 28. Reference numeral 29 denotes a defrost control device, which includes an integrating timer 19 and precool timers 20 and 30. Precool timer 30
In the following, the g input and the h and i outputs are provided, and the roles of the respective inputs and outputs are d input and e of the precool timer 20.
And the f output, but the time of the "H" signal from the h output is shorter than the time of the "H" signal of the e output of the precool timer 20 (for example, the e output is 40 minutes and the h output is 20 minutes). Minutes). The "H" signal time of the i output of the precool timer 30 is the same as the "H" signal time of the f output of the precool timer 20. One output of the comparator 28 is connected to one input of the AND circuit 31, and the other output of the comparator 28 is connected to one input of the AND circuit 33 via the inverter circuit 32. The other input of the AND circuits 31 and 33 is connected to the output c of the integrating timer 19. next
The output of the AND circuit 31 is connected to the d input of the pre-cool timer
The output of the circuit 33 is connected to the g input of the precool timer 30. The outputs e and h of the precool timers 20 and 30 are both connected to two inputs of three inputs of an OR circuit 34, respectively.
Is connected to the output b of the integrating timer 19. The output of the OR circuit 34 is connected to the base of the transistor 24. Next, both the f input and the i output of the precool timers 20 and 30 are input to the OR circuit 35, and the output of the OR circuit 35 is connected to the base of the transistor 22.
かかる構成において積算タイマ19が所定時間積算する
とｃ出力よりワンパルス“H"信号を出力する。その時、
外気温度が所定値より高い場合は、外気温サーミスタ27
の抵抗値▲Ｒ′ TH▼が小さくなってコンパレータ28の出
力が“H"となり、AND回路31のコンパレータ28側の入力
は“H"で、AND回路33のコンパレータ側の入力はインバ
ータ回路32を介して“L"となっている。したがって積算
タイマ19のワンパルスの“H"信号に対し、AND回路31の
出力はワンパルス“H"となり、AND回路33の出力は“L"
状態のままである。したがってプリクールタイマ20が選
択されｅ出力より一定時間“H"出力が出てOR回路34の出
力も“H"となりトランジスタ24がONし、圧縮機12,ファ
ン９が運転し強制予冷却作用が行なわれる。プリクール
タイマ20のｅ出力より“H"信号出力後、ｆ出力より“H"
信号が出力し、OR回路35の出力が“H"となりトランジス
タ22がONし除霜ヒータ10が通電し、冷却器８の霜を取り
除く。次に外気温度が所定値より低い場合は、外気温サ
ーミスタ27の抵抗値▲Ｒ′ TH▼が大きくなってコンパレ
ータ28の出力が“L"となり、AND回路31のコンパレータ2
8側の入力も“L"AND回路33のコンパレータ28側の入力は
インバータ回路32を介して“H"となり、プリクールタイ
マ30が選択される。したがってプリクールタイマ30のｈ
出力から、プリクールタイマ20のｅ出力より短かい時間
の“H"信号が出力され、OR回路34の出力も“H"となりト
ランジスタ24がONし、圧縮機12,ファン９が運転し、高
外気温度の時より短かい場合に強制予冷却作用が行なわ
れる。プリクールタイマ30のｈ出力より、“H"信号出力
後、ｉ出力より“H"信号が出力し、OR回路35の出力が
“H"となりトランジスタ22がONし除霜ヒータ10が通電
し、冷却器８の霜を取り除く。In this configuration, when the integration timer 19 integrates for a predetermined time, a one-pulse “H” signal is output from the output c. At that time,
If the outside air temperature is higher than the predetermined value, the outside air thermistor 27
The resistance ▲ R 'TH ▼ becomes smaller output becomes "H" of the comparator 28, the input is "H" of the comparator 28 of the AND circuit 31, the input of the comparator of the AND circuit 33 is an inverter circuit 32 It becomes “L” through Therefore, in response to the one-pulse “H” signal of the integration timer 19, the output of the AND circuit 31 becomes one pulse “H”, and the output of the AND circuit 33 becomes “L”.
It remains in a state. Therefore, the pre-cool timer 20 is selected, the "H" output is output for a certain period of time from the e output, the output of the OR circuit 34 also becomes "H", the transistor 24 is turned on, the compressor 12 and the fan 9 are operated, and the forced pre-cooling action is performed. Done. After "H" signal is output from e output of pre-cool timer 20, "H" is output from f output
A signal is output, the output of the OR circuit 35 becomes "H", the transistor 22 is turned on, the defrost heater 10 is energized, and the frost of the cooler 8 is removed. Then when the outside air temperature is lower than a predetermined value, the output becomes "L" of the resistance value ▲ R 'TH ▼ and increases the comparator 28 of the outside air temperature thermistor 27, the AND circuit 31 Comparator 2
The input on the 8 side also becomes “H” via the inverter circuit 32 on the input of the comparator 28 of the “L” AND circuit 33, and the pre-cool timer 30 is selected. Therefore, the precool timer 30 h
From the output, an "H" signal for a shorter time than the e output of the precool timer 20 is output, the output of the OR circuit 34 also becomes "H", the transistor 24 is turned on, the compressor 12 and the fan 9 are operated, and When the temperature is shorter than the outside air temperature, a forced pre-cooling action is performed. After the "H" signal is output from the h output of the precool timer 30, the "H" signal is output from the i output, the output of the OR circuit 35 becomes "H", the transistor 22 is turned on, and the defrost heater 10 is energized. The frost on the cooler 8 is removed.
したがって、強制予冷却時間が外気温度によって選択
され、低外気温度での時間を高外気温度のそれより短か
くすることにより、冷蔵室の温度が０℃以下になるまで
に霜取作用に入るので、食品凍結を防ぐことが出来る。
又、低外気温度下では冷蔵庫本体１の吸熱負荷量も減少
しているため冷却器８の蒸発温度も十分に低下してお
り、強制予冷却時間が短かくなっても除霜前に冷凍室５
の室内温度を引き下げて除霜時の温度上昇を防止すると
いう所期の目的は十分達成される。Therefore, the forced pre-cooling time is selected according to the outside air temperature, and the time at the low outside air temperature is made shorter than that at the high outside air temperature, so that the defrosting operation is started until the temperature of the refrigerator compartment becomes 0 ° C. or less. In addition, food freezing can be prevented.
Further, at low outside air temperature, the heat absorption load of the refrigerator body 1 is also reduced, so that the evaporating temperature of the cooler 8 is also sufficiently lowered. 5
The intended purpose of lowering the indoor temperature to prevent a rise in temperature during defrost is sufficiently achieved.
発明の効果 以上の様に本発明の冷蔵庫によると、外気温度によ
り、強制予冷却時間を選択し、低外気温度の時は短かい
時間を選択することにより、冷蔵室の食品凍結を未然に
防ぎながら冷凍室の温度上昇を防止する。又高外気温度
の時は長い時間を選択することにより、強制予冷却中に
十分に冷凍室温度を下げ、霜取中での温度上昇を抑制す
ることが出来る。Effects of the Invention As described above, according to the refrigerator of the present invention, by selecting the forced pre-cooling time according to the outside air temperature and selecting a short time at a low outside air temperature, the freezing of food in the refrigerator compartment is prevented beforehand. While preventing freezing room temperature rise. By selecting a long time at a high outside air temperature, the freezing room temperature can be sufficiently lowered during the forced precooling, and the temperature rise during defrosting can be suppressed.
第１図は本発明の一実施例を示す冷蔵庫の電気回路図、
第２図は同冷蔵庫の断面図、第３図は従来の冷蔵庫の電
気回路図、第４図は同冷蔵庫の断面図である。 １……冷蔵庫、５……冷凍室、６……冷蔵室、８……冷
却器、10……除霜ヒータ、12……圧縮機、16……冷凍室
温度制御装置、27……外気温サーミスタ、29……除霜制
御装置。FIG. 1 is an electric circuit diagram of a refrigerator showing one embodiment of the present invention,
2 is a sectional view of the refrigerator, FIG. 3 is an electric circuit diagram of the conventional refrigerator, and FIG. 4 is a sectional view of the refrigerator. 1 ... Refrigerator, 5 ... Freezer, 6 ... Refrigerator, 8 ... Cooler, 10 ... Defrost heater, 12 ... Compressor, 16 ... Freezer compartment temperature controller, 27 ... Outside air temperature Thermistor, 29 ... Defrost control device.
Claims (1)
を検知して冷凍サイクルの圧縮機の運転を制御する冷凍
室温度制御装置と、前記圧縮機の運転時間を積算し、積
算終了後一定時間前記圧縮機を強制予冷却運転させ、そ
の後冷凍サイクルの冷却器の霜を溶かす除霜ヒータを通
電させる除霜制御装置と、外気温を検知する外気温サー
ミスタとよりなり、前記除霜制御装置は、前記外気温サ
ーミスタが低外気温度を検知した場合は、前記除霜前の
圧縮機による強制予冷却運転時間を短縮させる手段を備
えた冷蔵庫。1. A freezer compartment, a refrigerating compartment, a freezer compartment temperature control device for detecting the temperature in the freezer compartment and controlling the operation of a compressor of a refrigerating cycle, and accumulating the operating time of the compressor. A defrost controller for forcibly pre-cooling the compressor for a certain period of time after completion of the operation and thereafter energizing a defrost heater for melting the frost of the cooler of the refrigeration cycle, and an outside air temperature thermistor for detecting the outside air temperature. A refrigerator comprising: means for shortening a forced precooling operation time by the compressor before the defrosting when the outside air temperature thermistor detects a low outside air temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28082888A JP2650986B2 (en) | 1988-11-07 | 1988-11-07 | refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28082888A JP2650986B2 (en) | 1988-11-07 | 1988-11-07 | refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02126083A JPH02126083A (en) | 1990-05-15 |
| JP2650986B2 true JP2650986B2 (en) | 1997-09-10 |
Family
ID=17630552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28082888A Expired - Fee Related JP2650986B2 (en) | 1988-11-07 | 1988-11-07 | refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2650986B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7905100B2 (en) | 2004-12-16 | 2011-03-15 | Danfoss A/S | Method for controlling temperature in a refrigeration system |
| US9250011B2 (en) * | 2011-08-26 | 2016-02-02 | Thetford Corporation | Absorption refrigerator with temperature control |
| CN112378158B (en) * | 2020-11-06 | 2022-06-14 | 卡奥斯工业智能研究院(青岛)有限公司 | Refrigerator control method and device, electronic equipment and storage medium |
| CN112815615A (en) * | 2021-01-08 | 2021-05-18 | 珠海格力电器股份有限公司 | Refrigerator control method and device, storage medium and refrigerator |
| CN113865218B (en) * | 2021-11-02 | 2022-06-10 | 珠海格力电器股份有限公司 | Method for adjusting precooling time before defrosting, refrigeration equipment and storage medium |
-
1988
- 1988-11-07 JP JP28082888A patent/JP2650986B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02126083A (en) | 1990-05-15 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |