JP2003166776A - Control device for refrigerator - Google Patents
Control device for refrigeratorInfo
- Publication number
- JP2003166776A JP2003166776A JP2001366262A JP2001366262A JP2003166776A JP 2003166776 A JP2003166776 A JP 2003166776A JP 2001366262 A JP2001366262 A JP 2001366262A JP 2001366262 A JP2001366262 A JP 2001366262A JP 2003166776 A JP2003166776 A JP 2003166776A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- compressor
- heater
- refrigerator
- temperature sensor
- 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.)
- Pending
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/34—Temperature balancing devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/122—Sensors measuring the inside temperature of freezer compartments
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、冷蔵庫に係り、
特に冷蔵庫の温度制御装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator,
In particular, it relates to a temperature control device for a refrigerator.
【０００２】[0002]
【従来の技術】従来の冷蔵庫の温度制御装置の一例につ
いて説明する。図１０おいて、１は冷蔵庫本体で、上部
に冷凍室２と、下部に冷蔵室３とを区画壁４によって区
画している。５は前記冷蔵室３に設けた野菜ケース、６
は冷凍室２内に配置したこの冷蔵庫の冷却器、７は送風
機、８は圧縮機、９は前記冷蔵室３内に設けた温度制御
装置で、温度センサ１０とこの温度センサ１０近傍に配
置したサーモヒータ１１とを接続配置している。2. Description of the Related Art An example of a conventional temperature control device for a refrigerator will be described. In FIG. 10, reference numeral 1 denotes a refrigerator main body, which has a freezing compartment 2 at the upper part and a refrigerating compartment 3 at the bottom parted by partition walls 4. 5 is a vegetable case provided in the refrigerating compartment 3, 6
Is a cooler of the refrigerator arranged in the freezer compartment 2, 7 is a blower, 8 is a compressor, and 9 is a temperature control device provided in the refrigerating compartment 3, which is arranged in the vicinity of the temperature sensor 10 and the temperature sensor 10. The thermo-heater 11 is connected and arranged.
【０００３】前記、温度制御装置９は、温度センサ１０
の検知温度が冷却停止温度である一定温度以下になった
場合に圧縮機８を停止させる。一方、圧縮機８を停止さ
せた後、温度センサ１０の検知温度が冷却開始温度とな
る一定温度上になった場合に圧縮機８を運転させる。こ
れにより、冷蔵室３と冷凍室２の温度を常に一定の温度
範囲に制御している。The temperature control device 9 includes a temperature sensor 10
The compressor 8 is stopped when the detected temperature of 1 becomes lower than a certain temperature which is the cooling stop temperature. On the other hand, after the compressor 8 is stopped, the compressor 8 is operated when the temperature detected by the temperature sensor 10 reaches a certain temperature which is the cooling start temperature. As a result, the temperatures of the refrigerating compartment 3 and the freezing compartment 2 are always controlled within a constant temperature range.
【０００４】次に、従来の電気回路について図１１を参
照しながら説明する。１２は電源で、圧縮機８と送風機
７を温調用リレー１３を介してに接続しいる。この温調
用リレー１３は、サーモヒータ１１に並列に前記電源１
２に接続され、励磁コイルに通電時に接点を閉成する様
に構成されている。Next, a conventional electric circuit will be described with reference to FIG. A power source 12 connects the compressor 8 and the blower 7 via a temperature control relay 13. This temperature control relay 13 is arranged in parallel with the thermo-heater 11 in the power source 1
2 and is configured to close the contact when the exciting coil is energized.
【０００５】次に前記温調用リレー１３を駆動させる温
度制御装置７について述べると、１４は温度制御回路
で、前記冷蔵室３内に設けた温度センサ１０、第１抵抗
Ｒ１、第２抵抗Ｒ２、第３抵抗Ｒ３、及びコンパレータ
１５で構成されている。前記コンパレータ１５出力は制
御部１６に出力判定を入力する。この制御部１６の一方
出力の圧縮機運転停止手段１７は、第１ドライバ回路１
８を介して前記温調用リレー１３にＯＮ／ＯＦＦ信号を
送る。ところが、前記温度制御装置９では、冷蔵室３の
温度を中心に制御しているため、圧縮機８の停止時間が
長くなると、冷凍室２の温度が許容温度範囲を越える場
合がある。Next, the temperature control device 7 for driving the temperature control relay 13 will be described. Reference numeral 14 is a temperature control circuit, which is a temperature sensor 10 provided in the refrigerating chamber 3, a first resistor R1, and a second resistor R2. It is composed of a third resistor R3 and a comparator 15. The output of the comparator 15 is input to the control unit 16 as an output judgment. The compressor operation stopping means 17 for one output of the control unit 16 is the first driver circuit 1
An ON / OFF signal is sent to the temperature control relay 13 via 8. However, since the temperature control device 9 controls the temperature of the refrigerating room 3 as a center, the temperature of the freezing room 2 may exceed the allowable temperature range when the compressor 8 is stopped for a long time.
【０００６】そのため、冷蔵室３の温度センサ１０の付
近にサーモヒータ１１を設置している。すなわち、この
サーモヒータ１１は、圧縮機８の停止時間が所定時間以
上にならないようにするものであり、圧縮機８が停止し
たと同時にサーモヒータ１１を動作させて冷蔵室３の温
度センサ１０の温度を強制的に上昇させ、温度センサ１
０の検知温度が、冷却開始温度になるべく早くなるよう
にしている。Therefore, a thermo-heater 11 is installed near the temperature sensor 10 in the refrigerator compartment 3. That is, the thermo-heater 11 prevents the stop time of the compressor 8 from exceeding a predetermined time, and at the same time when the compressor 8 stops, the thermo-heater 11 is operated to change the temperature of the temperature sensor 10 in the refrigerating compartment 3. Forcibly raise the temperature sensor 1
The detected temperature of 0 is set as high as possible to reach the cooling start temperature.
【０００７】また、冷蔵庫内のサーモスタットの検知温
度が冷却停止温度になった場合にオフ状態となり、圧縮
機を停止すると共に、庫内ヒータ、サーモヒータを動作
させ、さらに圧縮機の停止時間が、停止限度時間以内に
なった場合、タイマー動作で、ヒータ容量を増加させ
て、外気温が低い場合でも冷凍室の冷却不良を起こさな
いよう制御する技術が、特開平０８−２１０７５０号公
報に開示されている。Further, when the temperature detected by the thermostat in the refrigerator reaches the cooling stop temperature, the thermostat is turned off, the compressor is stopped, the internal heater and the thermoheater are operated, and the stop time of the compressor is stopped. Japanese Patent Laid-Open No. 08-210750 discloses a technique of increasing the heater capacity by a timer operation when the time is within a limit time so as to prevent defective cooling of the freezer even when the outside air temperature is low. There is.
【０００８】[0008]
【発明が解決しようとしている課題】従来の冷蔵庫の温
度制御装置においては、寒冷地等での冷蔵庫の外気温度
が低い場合には、サーモヒータを設けていても、冷蔵室
の温度センサが上昇しにくくなり、圧縮機の停止時間が
長くなることがあった。この場合は、冷蔵室の温度に至
っては問題ないが、冷凍室の温度が上昇し許容温度範囲
を超えてしまうという課題があった。In the conventional refrigerator temperature control device, when the outside air temperature of the refrigerator is low in a cold region or the like, the temperature sensor in the refrigerating room is unlikely to rise even if a thermo-heater is provided. As a result, the downtime of the compressor may increase. In this case, although there is no problem in reaching the temperature of the refrigerating room, there is a problem that the temperature of the freezing room rises and exceeds the allowable temperature range.
【０００９】このため、図６に示すように、外気温度が
５℃の場合の冷凍室の温度及び冷却器の温度変化は、外
気温度が低いため、点線で表すと冷却器の温度上昇が遅
く冷却開始温度まで上昇するのに５０〜６０分かかる。
即ち、図６における時間Ｔ１となる。そのため、時間Ｔ
１間は圧縮機が動作していないため、冷凍室の温度は、
平均―１５℃となる。通常、冷凍室の温度は、平均―１
７℃は必要であるため、平均―１５℃であると、冷凍室
の温度は高すぎることになる。Therefore, as shown in FIG. 6, when the outside air temperature is 5 ° C., the temperature changes in the freezer compartment and the cooler are low because the outside air temperature is low. It takes 50 to 60 minutes to rise to the cooling start temperature.
That is, the time T1 in FIG. 6 is reached. Therefore, time T
Since the compressor is not operating during the period 1, the temperature in the freezer is
The average is -15 ° C. Usually, the temperature in the freezer is -1 on average.
Since 7 ° C is required, if the average temperature is -15 ° C, the temperature in the freezer will be too high.
【００１０】この発明は、このような課題点に鑑み、冷
蔵室に温度センサを有する冷蔵庫において冷凍室の温度
が常に一定の温度範囲に制御することができる冷蔵庫を
提供することを目的とする。In view of the above problems, it is an object of the present invention to provide a refrigerator having a temperature sensor in the refrigerating chamber, in which the temperature of the freezing chamber can always be controlled within a constant temperature range.
【００１１】[0011]
【課題を解決するための手段】この発明の冷蔵庫の制御
装置は、冷蔵庫を冷蔵室と冷凍室とから構成し、かつ前
記冷蔵室内に野菜ケースを配置するとともに、前記冷蔵
室に温度センサ及び保温ヒータを設け、かつ冷蔵庫底部
に圧縮機とを備え、前記温度センサの検知温度が冷却停
止温度になった場合、前記圧縮機を停止すると圧縮機運
転停止手段と、前記圧縮機の停止時間がある一定時間を
越えた場合に、保温ヒータを通電させるヒータ通電手段
とからなるものである。According to another aspect of the present invention, there is provided a control device for a refrigerator comprising a refrigerator having a refrigerating compartment and a freezing compartment, a vegetable case arranged in the refrigerating compartment, and a temperature sensor and heat retention in the refrigerating compartment. If a heater is provided and a compressor is provided at the bottom of the refrigerator, and the temperature detected by the temperature sensor reaches the cooling stop temperature, there is a compressor operation stop means when the compressor is stopped, and a stop time of the compressor. The heater energizing means energizes the heat retention heater when a predetermined time is exceeded.
【００１２】また、この発明の冷蔵庫の制御装置は、保
温ヒータを、前記冷蔵室内の前記野菜ケース後壁内に埋
設したものである。Further, in the control device of the refrigerator of the present invention, the heat retaining heater is embedded in the rear wall of the vegetable case in the refrigerating compartment.
【００１３】また、この発明の冷蔵庫の制御装置は、保
温ヒータを、前記冷蔵室内の前記野菜ケース左右壁およ
び後壁内に埋設したものである。Further, in the control device of the refrigerator of the present invention, the heat insulation heaters are embedded in the left and right walls of the vegetable case and the rear wall in the refrigerating compartment.
【００１４】また、この発明の冷蔵庫の制御装置は、冷
蔵庫を冷蔵室と冷凍室とから構成し、かつ前記冷蔵室内
に野菜ケースを配置するとともに、前記冷蔵室に温度セ
ンサ及び保温ヒータ設け、かつ冷蔵庫底部に圧縮機とを
備え、前記温度センサの検知温度が冷却停止温度になっ
た場合、前記圧縮機を停止すると圧縮機運転停止手段
と、前記圧縮機の停止時間がある一定時間を越えた場合
に、保温ヒータを通電させるヒータ通電手段と、前記保
温ヒータの通電時間が通電限度時間以上になった場合
に、前記保温ヒータの通電を強制終了させるヒータ停止
手段とを設けたものである。In the refrigerator control device of the present invention, the refrigerator comprises a refrigerating compartment and a freezing compartment, a vegetable case is arranged in the refrigerating compartment, and a temperature sensor and a warming heater are provided in the refrigerating compartment. A compressor is provided at the bottom of the refrigerator, and when the temperature detected by the temperature sensor reaches the cooling stop temperature, when the compressor is stopped, the compressor operation stopping means and the stop time of the compressor exceed a certain fixed time. In this case, there are provided heater energizing means for energizing the heat retaining heater and heater stopping means for forcibly ending energization of the heat retaining heater when the energizing time of the heat retaining heater exceeds an energization limit time.
【００１５】[0015]
【発明の実施の形態】実施の形態１．以下、この発明の
実施の形態１による冷蔵庫の制御装置を図面に従い説明
する。図について、１は冷蔵庫本体で、上部に冷凍室２
と、下部に冷蔵室３とを区画壁４によって区画してい
る。５は前記冷蔵室３に設けた野菜ケース、６は冷凍室
２内に配置したこの冷蔵庫の冷却器、７は送風機、８は
圧縮機、９は前記冷蔵室３内に設けた温度制御装置で、
温度センサ１０とこの温度センサ１０近傍に配置したサ
ーモヒータ１１とを接続配置している。BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Hereinafter, a refrigerator control device according to Embodiment 1 of the present invention will be described with reference to the drawings. In the figure, 1 is a refrigerator main body, and a freezer compartment 2 at the top.
And the refrigerating chamber 3 is partitioned by a partition wall 4 at the bottom. 5 is a vegetable case provided in the refrigerating compartment 3, 6 is a refrigerator of this refrigerator arranged in the freezing compartment 2, 7 is a blower, 8 is a compressor, 9 is a temperature control device provided in the refrigerating compartment 3. ,
The temperature sensor 10 and the thermo-heater 11 arranged near the temperature sensor 10 are connected and arranged.
【００１６】次に、図２に示す実施の形態１の電気回路
について説明する。１２は電源で、圧縮機８と送風機７
を温調用リレー１３を介して接続している。この温調リ
レー１３は、サーモヒータ１１に並列に前記電源１２に
接続され、励磁コイルに通電時に接点を閉成する様に構
成されている。Next, the electric circuit of the first embodiment shown in FIG. 2 will be described. Reference numeral 12 is a power source, which is a compressor 8 and a blower 7.
Are connected via a temperature control relay 13. The temperature control relay 13 is connected to the power source 12 in parallel with the thermo-heater 11, and is configured to close the contact when the exciting coil is energized.
【００１７】次に、この実施の形態１による温度制御装
置９について述べると、１４は温度制御回路で、前記冷
蔵室３内に設けた温度センサ１０、第１抵抗Ｒ１、第２
抵抗Ｒ２、第３抵抗Ｒ３、及びコンパレータ１５で構成
されている。前記コンパレータ１５出力は制御部１６に
出力判定を入力し、この制御部１６の一方出力の圧縮機
運転停止手段１７は、第１ドライバ回路１８を介して前
記温調用リレー１３にＯＮ／ＯＦＦ信号を送る。１９
は、冷蔵室３の前記野菜ケース５後方の内箱後壁３ａの
断熱壁内に埋設された保温ヒータ、２０は前記保温ヒー
タ１９を駆動するための保温ヒータ用リレー、２１はこ
の保温ヒータ用リレー２０を駆動するための第２ドライ
バ回路である。２２は前記制御部１６のもう一方の出力
であるヒータ通電信号を出力するヒータ通電手段で、前
記保温ヒータ用リレー２０および第２ドライバ回路２１
を介して駆動信号により保温ヒータ１９を動作する構成
になっている。Next, the temperature control device 9 according to the first embodiment will be described. Reference numeral 14 is a temperature control circuit, which is a temperature sensor 10 provided in the refrigerating chamber 3, a first resistor R1, and a second resistor R1.
It is composed of a resistor R2, a third resistor R3, and a comparator 15. The output of the comparator 15 inputs the output judgment to the control unit 16, and the compressor operation stopping means 17 of one output of the control unit 16 sends an ON / OFF signal to the temperature adjustment relay 13 via the first driver circuit 18. send. 19
Is a heat retention heater embedded in the heat insulation wall of the inner box rear wall 3a behind the vegetable case 5 in the refrigerator compartment 3, 20 is a heat retention heater relay for driving the heat retention heater 19, and 21 is this heat retention heater It is a second driver circuit for driving the relay 20. Reference numeral 22 is a heater energizing means for outputting a heater energizing signal which is the other output of the control section 16, and is the heat retaining heater relay 20 and the second driver circuit 21.
The warming heater 19 is operated by a drive signal via the.
【００１８】次にかかる構成における動作を図２、図３
又は図４に示して説明する。冷蔵室温度判定フローにお
いて、冷蔵室温度が所定値より高い場合は温度センサ１
０の抵抗値ＲＴＨが小さくなっており、ステップＳ１に
おいて、温度制御回路１４の抵抗値ＲＴＨと第１抵抗Ｒ
１とで決定されるＡ点の電位が第２抵抗Ｒ２と第３抵抗
Ｒ３で決定されるＢ点の電位より高くなり、コンパレー
タ１５の出力が“Ｈ”となり制御部１６に入力される。
ステップＳ２において、これを受けて圧縮機運転停止手
段１８が圧縮機運転指令“Ｈ”を出力し、制御部１６で
温調用リレー１３を駆動させるための信号を送り温調用
リレー１３の接点がＯＮし、圧縮機８が運転する。Next, the operation of the above configuration will be described with reference to FIGS.
Alternatively, it will be described with reference to FIG. In the refrigerating compartment temperature determination flow, if the refrigerating compartment temperature is higher than a predetermined value, the temperature sensor 1
The resistance value RTH of 0 is small, and in step S1, the resistance value RTH of the temperature control circuit 14 and the first resistance R
The potential at the point A determined by 1 becomes higher than the potential at the point B determined by the second resistor R2 and the third resistor R3, and the output of the comparator 15 becomes “H” and is input to the control unit 16.
In step S2, in response to this, the compressor operation stopping means 18 outputs the compressor operation command "H", and the controller 16 sends a signal for driving the temperature adjustment relay 13 to turn on the contact of the temperature adjustment relay 13. Then, the compressor 8 operates.
【００１９】また、ステップＳ１で、冷蔵室温度が所定
値より低い場合は温度センサ１０の抵抗値ＲＴＨが大き
くなり、Ａ電位がＢ電位よりも低くなり、コンパレータ
１５の出力が“Ｌ”となり制御部１６に入力される。ス
テップＳ３において、これを受けて圧縮機運転停止手段
１７で圧縮機停止指令“Ｌ”を出力し、制御部１６で温
調用リレー１３をＯＦＦさせる信号を送り圧縮機８が停
止し、サーモヒータ１１が加熱を開始する。In step S1, when the temperature of the refrigerating compartment is lower than the predetermined value, the resistance value RTH of the temperature sensor 10 becomes large, the A potential becomes lower than the B potential, and the output of the comparator 15 becomes "L". It is input to the section 16. In step S3, in response to this, the compressor operation stop means 17 outputs a compressor stop command "L", the control unit 16 sends a signal for turning off the temperature adjustment relay 13, the compressor 8 is stopped, and the thermoheater 11 is turned on. Start heating.
【００２０】次に図４に示す保温ヒータ通電判定におい
て、ステップＳ１１において、圧縮機運転中かを判定
し、圧縮機８が停止していれば、ステップＳ１２に進
み、圧縮機８が停止した時点から制御部１６内のタイマ
ー１６ａでその停止時間の計測を開始する。また、ステ
ップＳ１１において、圧縮機運転中かを判定し、前記タ
イマー１６ａが圧縮機停止限度時間以内において、冷蔵
室３の温度が上昇し、冷却開始温度に至ると圧縮機８の
運転が再開し、ステップＳ１５に進み、ヒータ通電停止
手段２３により保温ヒータ停止指令“Ｌ”を出力し、保
温ヒータ１９の動作が停止する。ところが、外気温度が
低く冷蔵室３の温度が上昇しない場合には、ステップＳ
１３において、圧縮機停止１５分以上かを判定し、タイ
マー１６ａの計測している時間が、圧縮機停止限度を超
える場合、ステップＳ１４に進み、ヒータ通電手段２２
で保温ヒータ通電指令“Ｈ”を出力する。Next, in the heat retention heater energization determination shown in FIG. 4, it is determined in step S11 whether or not the compressor is operating. If the compressor 8 is stopped, the process proceeds to step S12, at which the compressor 8 is stopped. The timer 16a in the control unit 16 starts measuring the stop time. In step S11, it is determined whether the compressor is in operation. When the timer 16a is within the compressor stop limit time, the temperature of the refrigerating chamber 3 rises, and when the cooling start temperature is reached, the operation of the compressor 8 is restarted. In step S15, the heater energization stopping means 23 outputs the warming heater stop command "L" to stop the operation of the warming heater 19. However, if the outside air temperature is low and the temperature of the refrigerator compartment 3 does not rise, step S
13, it is determined whether the compressor is stopped for 15 minutes or more, and if the time measured by the timer 16a exceeds the compressor stop limit, the process proceeds to step S14, and the heater energizing unit 22 is operated.
Outputs the heat retention heater energization command "H".
【００２１】この場合には、制御部１６から第２ドライ
バ２１を介して保温ヒータ用リレー２０をＯＮする信号
を送り、保温ヒータ１９の通電を始める。これにより、
冷蔵室３内の温度が上昇し、冷却開始温度に至る時間が
早くなる。In this case, the control unit 16 sends a signal for turning on the heat retention heater relay 20 via the second driver 21 to start energizing the heat retention heater 19. This allows
The temperature in the refrigerator compartment 3 rises and the time to reach the cooling start temperature is shortened.
【００２２】図５は、例えば外気温度が５℃の場合にお
ける圧縮機８、サーモヒータ１１、及び保温ヒータ１９
の動作状態を表すタイムチャートである。図５に示すよ
うに、圧縮機８が停止した後、圧縮機停止限度時間であ
る１５分間はタイマー１６ａが計測するとともに、サー
モヒータ１１が動作して、冷蔵室３の温度を上昇させて
いる。しかしながら、外気温度が５℃と低く、圧縮機停
止限度時間である１５分を超えた場合には、保温ヒータ
１９が作動し、２５分後冷却開始温度に至り、サーモヒ
ータ１１と保温ヒータ１９が停止すると共に、圧縮機８
が運転を開始する。FIG. 5 shows, for example, the compressor 8, the thermo heater 11, and the heat retaining heater 19 when the outside air temperature is 5 ° C.
3 is a time chart showing the operating state of the. As shown in FIG. 5, after the compressor 8 is stopped, the timer 16a measures for 15 minutes, which is the compressor stop limit time, and the thermoheater 11 operates to raise the temperature of the refrigerating chamber 3. However, when the outside air temperature is as low as 5 ° C. and exceeds the compressor stop limit time of 15 minutes, the heat retention heater 19 operates and reaches the cooling start temperature after 25 minutes, and the thermo heater 11 and the heat retention heater 19 stop. Compressor 8
Starts driving.
【００２３】図６に示す実線は、この実施の形態１に関
し、図５に示すタイムチャートにおける冷凍室の温度及
び冷却器の温度を表したものであり、冷却開始温度まで
上昇するのに時間Ｔ２での２５分ですむことになり、冷
凍室の温度の平均を−１８℃に維持することができる。
すなわち、従来では、平均―１５℃であったが、−３℃
下げることができる。The solid line shown in FIG. 6 represents the temperature of the freezer compartment and the temperature of the cooler in the time chart shown in FIG. 5 according to the first embodiment, and it takes time T2 to rise to the cooling start temperature. It takes only 25 minutes, and the average temperature of the freezer can be maintained at -18 ° C.
That is, in the past, the average was −15 ° C., but −3 ° C.
Can be lowered.
【００２４】実施の形態２．この実施の形態２について
説明する。図７は冷蔵庫の制御装置の要部拡大図であ
り、図において、３ａは断熱材で成形された冷蔵室３の
野菜ケース５後方の内箱後壁、３ｂおよび３ｃは同じく
断熱材で成形された冷蔵室３の野菜ケース５側方の前記
後壁３ａにつながる左右側壁である。１９ｂは、前記内
箱後壁３ａおよび左右側壁３ｂ、３ｃ内に埋設されたコ
字形保温ヒータで、内箱側に貼付けられている。Embodiment 2. The second embodiment will be described. FIG. 7 is an enlarged view of a main part of the control device of the refrigerator. In the figure, 3a is a heat-insulating material, and the rear wall of the inner box behind the vegetable case 5 of the refrigerating compartment 3 is 3b and 3c are also made of a heat-insulating material. And left and right side walls connected to the rear wall 3a on the side of the vegetable case 5 of the refrigerating room 3. Reference numeral 19b denotes a U-shaped heat retaining heater embedded in the inner box rear wall 3a and the left and right side walls 3b, 3c, which is attached to the inner box side.
【００２５】従って、コ字形保温ヒータ１９ｂの通電時
は、野菜ケース５を介して熱を冷蔵室３に放出している
ので庫内の食品には直接熱が伝わらず庫内の食品の劣化
を防ぐことができる。Therefore, when the U-shaped heat-retaining heater 19b is energized, heat is radiated to the refrigerating chamber 3 through the vegetable case 5, so that heat is not directly transmitted to the food in the refrigerator and the food in the refrigerator is deteriorated. Can be prevented.
【００２６】実施の形態３．次に、この発明の実施の形
態３について説明する。図９はこの発明の実施の形態３
による冷蔵項の制御フローチャート、図８は実施の形態
３のタイムチャートである。図において、保温ヒータ通
電判定において、ステップＳ２１において、圧縮機運転
中かを判定し、圧縮機８が停止していれば、ステップＳ
２２に進み、圧縮機８が停止した時点から制御部１６内
のタイマー１６ａでその停止時間の計測を開始する。ま
た、ステップＳ２１において、圧縮機運転中かを判定
し、前記タイマー１６ａが圧縮機停止限度時間以内にお
いて、冷蔵室３の温度が上昇し、冷却開始温度に至ると
圧縮機８の運転が再開し、ステップＳ２７に進み、ヒー
タ停止手段２３で保温ヒータ停止指令“Ｌ”を出力し、
保温ヒータ１９の動作が停止する。Embodiment 3. Next, a third embodiment of the invention will be described. FIG. 9 shows a third embodiment of the present invention.
FIG. 8 is a time chart of the third embodiment, and FIG. In the figure, in the heat retention heater energization determination, it is determined in step S21 whether the compressor is in operation. If the compressor 8 is stopped, step S21 is performed.
In step 22, the timer 16a in the controller 16 starts measuring the stop time from the time when the compressor 8 stops. In step S21, it is determined whether the compressor is in operation. When the timer 16a is within the compressor stop limit time, the temperature of the refrigerating chamber 3 rises, and when the cooling start temperature is reached, the operation of the compressor 8 is restarted. , The process proceeds to step S27, the heater stop means 23 outputs the heat retention heater stop command “L”,
The operation of the heat retention heater 19 is stopped.
【００２７】ところが、外気温度が低く冷蔵室３の温度
が上昇しない場合には、ステップＳ２３において、圧縮
機停止１５分以上かを判定し、タイマー１６ａが計測し
ている時間が、圧縮機停止限度を超える場合、ステップ
Ｓ２４に進み、ヒータ通電手段２２で保温ヒータ通電指
令“Ｈ”を出力する。そして、温度センサ１０が接触不
良等で開放状態にある時、すなわち、Ａ点の電位がＢ点
の電位よりも低いため、圧縮機ＯＦＦ状態となると、ス
テップＳ２３において、圧縮機停止限度時間が１５分を
越えると、ステップＳ２４において、ヒータ通電手段２
２で保温ヒータの通電指令“Ｈ”出力し、制御を開始す
る。However, when the outside air temperature is low and the temperature of the refrigerating chamber 3 does not rise, it is determined in step S23 whether the compressor is stopped for 15 minutes or longer, and the time measured by the timer 16a is the compressor stop limit. If it exceeds, the process proceeds to step S24, and the heater energizing means 22 outputs the warming heater energizing command "H". When the temperature sensor 10 is in the open state due to poor contact, that is, when the compressor is in the OFF state because the potential at the point A is lower than the potential at the point B, the compressor stop limit time is 15 in step S23. When the time is exceeded, in step S24, the heater energizing means 2
At 2, the energization command "H" is output to the heat retention heater and control is started.
【００２８】しかしながら、温度センサ１０が異常なた
め冷却開始温度になっても圧縮機は運転せず、保温ヒー
タ１９は空焼き状態になる。図９のタイムチャートに示
すように、保温ヒータ通電限度タイマーを備え、ステッ
プＳ２５において、温度ヒータ通電時間が例えば４時間
以上経過したかを判定し、４時間以上経過していれば、
ステップＳ２６で何らかの異常があったと判定し、ステ
ップＳ２７に進み、ヒータ停止手段２３で保温ヒータ停
止指令“Ｌ”を出力し、保温ヒータ１９の通電を強制的
に終了する。また、異常判定があった場合はＬＥＤ等発
光ダイオードを表示させ、使用者に告知させても実施の
形態３と同等の効果を有することは勿論である。However, since the temperature sensor 10 is abnormal, the compressor does not operate even when the cooling start temperature is reached, and the heat retaining heater 19 is put into the idle state. As shown in the time chart of FIG. 9, a heat retention heater energization limit timer is provided, and in step S25, it is determined whether the temperature heater energization time has passed, for example, 4 hours or more, and if 4 hours or more has passed,
In step S26, it is determined that there is some abnormality, the process proceeds to step S27, in which the heater stopping means 23 outputs the warming heater stop command "L", and the energization of the warming heater 19 is forcibly terminated. Further, it is needless to say that the same effect as that of the third embodiment can be obtained by displaying a light emitting diode such as an LED to notify the user when an abnormality is determined.
【００２９】[0029]
【発明の効果】以上、この発明の冷蔵庫の制御装置は、
冷蔵庫を冷蔵室と冷凍室とから構成し、かつ前記冷蔵室
内に野菜ケースを配置するとともに、前記冷蔵室に温度
センサ及び保温ヒータを設け、かつ冷蔵庫底部に圧縮機
とを備え、前記温度センサの検知温度が冷却停止温度に
なった場合、前記圧縮機を停止すると圧縮機運転停止手
段と、前記圧縮機の停止時間がある一定時間を越えた場
合に、保温ヒータを通電させるヒータ通電手段とから構
成したので、冷蔵室全体を温める保温ヒータを通電させ
るため、冷蔵室の温度が上昇し、冷却装置が運転を開始
する。そのため冷凍室の温度が必要以上に上昇すること
がない。冷蔵室全体を温める保温ヒータを通電させるた
め、冷蔵室の温度が上昇し、冷却装置が運転を開始す
る。そのため冷凍室の温度が必要以上に上昇することが
ない。As described above, the control device for the refrigerator according to the present invention is
The refrigerator is composed of a refrigerating room and a freezing room, and a vegetable case is arranged in the refrigerating room, a temperature sensor and a heat retaining heater are provided in the refrigerating room, and a compressor is provided at the bottom of the refrigerator, and the temperature sensor When the detected temperature reaches the cooling stop temperature, the compressor operation stopping means is provided when the compressor is stopped, and the heater energizing means that energizes the heat retention heater when the compressor stop time exceeds a certain time. Since it is configured, the temperature of the refrigerating room rises and the cooling device starts to operate because the warming heater that heats the entire refrigerating room is energized. Therefore, the temperature of the freezer does not rise more than necessary. Since the heat-retaining heater that heats the entire refrigerating compartment is energized, the temperature of the refrigerating compartment rises and the cooling device starts operation. Therefore, the temperature of the freezer does not rise more than necessary.
【００３０】また、この発明の冷蔵庫の制御装置は、保
温ヒータを、前記冷蔵室内の前記野菜ケース後壁内に埋
設した構成としたので、また野菜ケースを介して熱を冷
蔵室に放出しているので庫内の食品には直接熱が伝わら
ず庫内の食品を劣化させない。In the refrigerator control device of the present invention, the heat retaining heater is embedded in the rear wall of the vegetable case in the refrigerating compartment, so that heat is released to the refrigerating compartment through the vegetable case. Since heat is not directly transmitted to the food in the refrigerator, it does not deteriorate the food in the refrigerator.
【００３１】また、この発明の冷蔵庫の制御装置は、保
温ヒータを、前記冷蔵室内の前記野菜ケース左右壁およ
び後壁内に埋設した構成としたので、また野菜ケースを
介して熱を冷蔵室に放出しているので庫内の食品には直
接熱が伝わらず庫内の食品を劣化させない。Further, in the control device of the refrigerator of the present invention, since the heat retention heater is embedded in the left and right walls of the vegetable case and the rear wall in the refrigerating compartment, heat can be transferred to the refrigerating compartment through the vegetable case. Since it is released, heat is not directly transmitted to the food in the refrigerator and the food in the refrigerator is not deteriorated.
【００３２】また、この発明の冷蔵庫の制御装置は、冷
蔵庫を冷蔵室と冷凍室とから構成し、かつ前記冷蔵室内
に野菜ケースを配置するとともに、前記冷蔵室に温度セ
ンサ及び保温ヒータ設け、かつ冷蔵庫底部に圧縮機とを
備え、前記温度センサの検知温度が冷却停止温度になっ
た場合、前記圧縮機を停止すると圧縮機運転停止手段
と、前記圧縮機の停止時間がある一定時間を越えた場合
に、保温ヒータを通電させるヒータ通電手段と、前記保
温ヒータの通電時間が通電限度時間以上になった場合
に、前記保温ヒータの通電を強制終了させるヒータ停止
手段とを設けた構成としたので、空焼き状態になること
もなく、安全な保温ヒータの通電制御を行なうことがで
きる。Further, in the control device for a refrigerator according to the present invention, the refrigerator comprises a refrigerating compartment and a freezing compartment, a vegetable case is arranged in the refrigerating compartment, and a temperature sensor and a heat-retaining heater are provided in the refrigerating compartment. A compressor is provided at the bottom of the refrigerator, and when the temperature detected by the temperature sensor reaches the cooling stop temperature, when the compressor is stopped, the compressor operation stopping means and the stop time of the compressor exceed a certain fixed time. In this case, since the heater energizing means for energizing the heat retaining heater and the heater stopping means for forcibly ending the energization of the heat retaining heater when the energizing time of the heat retaining heater exceeds the energization limit time are provided. It is possible to safely control the energization of the heat retention heater without being in the air-baked state.
【図１】 この発明の実施の形態１による冷蔵庫の制御
装置を示す概略断面図である。FIG. 1 is a schematic sectional view showing a control device for a refrigerator according to a first embodiment of the present invention.
【図２】 この発明の実施の形態１による冷蔵庫の制御
回路図である。FIG. 2 is a control circuit diagram of the refrigerator according to the first embodiment of the present invention.
【図３】 この発明の実施の形態１による冷蔵室温度判
定のフローチャートである。FIG. 3 is a flowchart of refrigerating compartment temperature determination according to the first embodiment of the present invention.
【図４】 この発明の実施の形態１による保温ヒータ
通電判定のフローチャートである。FIG. 4 is a flowchart of heat retention heater energization determination according to the first embodiment of the present invention.
【図５】 この発明の実施の形態１による動作タイミン
グチャートである。FIG. 5 is an operation timing chart according to the first embodiment of the present invention.
【図６】 この発明の実施の形態１による冷凍室及び冷
却器の温度状態を示す特性図である。FIG. 6 is a characteristic diagram showing temperature states of the freezer compartment and the cooler according to the first embodiment of the present invention.
【図７】 この発明の実施の形態２による冷蔵庫の制御
装置の要部拡大斜視図である。FIG. 7 is an enlarged perspective view of a main part of a control device for a refrigerator according to a second embodiment of the present invention.
【図８】 この発明の実施の形態３による動作タイミン
グチャートである。FIG. 8 is an operation timing chart according to the third embodiment of the present invention.
【図９】 この発明の実施の形態３による冷蔵庫の制御
装置のフローチャートである。FIG. 9 is a flowchart of the control device for the refrigerator according to the third embodiment of the present invention.
【図１０】 従来の冷蔵庫の制御装置を示す概略断面図
である。FIG. 10 is a schematic cross-sectional view showing a conventional refrigerator control device.
【図１１】 従来の冷蔵庫の制御装置回路図である。FIG. 11 is a circuit diagram of a control device of a conventional refrigerator.
１ 冷蔵庫本体、２ 冷凍室、３ 冷蔵室、５ 野菜ケ
ース、８ 圧縮機、９温度制御装置、１０ 温度セン
サ、１１ サーモヒータ、１３ 温調用リレー、１５
コンパレータ、１６ 制御部、１６ａ タイマ、１７
圧縮機運転停止手段、１８ 第１ドライバ回路、１９
保温ヒータ、２０ 保温ヒータ用リレー、２１ 第２ド
ライバ回路、２２ ヒータ通電手段、２３ ヒータ停止
手段。1 Refrigerator main body, 2 Freezer compartment, 3 Refrigerator compartment, 5 Vegetable case, 8 Compressor, 9 Temperature control device, 10 Temperature sensor, 11 Thermo heater, 13 Temperature control relay, 15
Comparator, 16 control unit, 16a timer, 17
Compressor operation stopping means, 18 First driver circuit, 19
Insulating heater, 20 Insulating heater relay, 21 Second driver circuit, 22 Heater energizing means, 23 Heater stopping means.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 橋元 浩一 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 Ｆターム(参考） 3L045 AA02 AA07 BA01 CA02 DA02 EA01 HA01 KA07 LA01 LA05 LA12 LA13 MA02 MA12 MA13 NA16 NA21 NA23 PA01 PA03 PA04 PA06 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Koichi Hashimoto 2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo Inside Ryo Electric Co., Ltd. F term (reference) 3L045 AA02 AA07 BA01 CA02 DA02 EA01 HA01 KA07 LA01 LA05 LA12 LA13 MA02 MA12 MA13 NA16 NA21 NA23 PA01 PA03 PA04 PA06
Claims (4)
かつ前記冷蔵室内に野菜ケースを配置するとともに、前
記冷蔵室に温度センサ及び保温ヒータを設け、かつ冷蔵
庫底部に圧縮機とを備え、前記温度センサの検知温度が
冷却停止温度になった場合、前記圧縮機を停止する圧縮
機運転停止手段と、前記圧縮機の停止時間がある一定時
間を越えた場合に、保温ヒータを通電させるヒータ通電
手段とを設けたことを特徴とする冷蔵庫の制御装置。1. A refrigerator comprises a refrigerator compartment and a freezer compartment,
And a vegetable case is placed in the refrigerating compartment, a temperature sensor and a heat retaining heater are provided in the refrigerating compartment, and a compressor is provided at the bottom of the refrigerator, and when the temperature detected by the temperature sensor reaches a cooling stop temperature, A control device for a refrigerator comprising: a compressor operation stopping means for stopping the compressor; and a heater energizing means for energizing the heat retention heater when the compressor stop time exceeds a certain time.
ケース後壁内に埋設したことを特徴とする請求項１記載
の冷蔵庫の制御装置。2. The refrigerator control device according to claim 1, wherein the heat retention heater is embedded in a rear wall of the vegetable case in the refrigerating compartment.
ケース左右壁および後壁内に埋設したことを特徴とする
請求項１記載の冷蔵庫の制御装置。3. The refrigerator control device according to claim 1, wherein the heat retaining heater is embedded in the left and right walls and the rear wall of the vegetable case in the refrigerating compartment.
かつ前記冷蔵室内に野菜ケースを配置するとともに、前
記冷蔵室に温度センサ及び保温ヒータを設け、かつ冷蔵
庫底部に圧縮機とを備え、前記温度センサの検知温度が
冷却停止温度になった場合、前記圧縮機を停止すると圧
縮機運転停止手段と、前記圧縮機の停止時間がある一定
時間を越えた場合に、保温ヒータを通電させるヒータ通
電手段と、前記保温ヒータの通電時間が通電限度時間以
上になった場合に、前記保温ヒータの通電を強制終了さ
せるヒータ停止手段とを設けたことを特徴とする冷蔵庫
の制御装置。4. The refrigerator comprises a refrigerating room and a freezing room,
And a vegetable case is placed in the refrigerating compartment, a temperature sensor and a heat retaining heater are provided in the refrigerating compartment, and a compressor is provided at the bottom of the refrigerator, and when the temperature detected by the temperature sensor reaches a cooling stop temperature, When the compressor is stopped, the compressor operation stopping means, the heater energizing means for energizing the heat retaining heater when the compressor stop time exceeds a certain time, and the energizing time of the heat retaining heater is equal to or longer than the energization limit time. And a heater stopping means for forcibly ending the energization of the heat retaining heater when the temperature of the refrigerator is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001366262A JP2003166776A (en) | 2001-11-30 | 2001-11-30 | Control device for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001366262A JP2003166776A (en) | 2001-11-30 | 2001-11-30 | Control device for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003166776A true JP2003166776A (en) | 2003-06-13 |
Family
ID=19176186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001366262A Pending JP2003166776A (en) | 2001-11-30 | 2001-11-30 | Control device for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003166776A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009019808A (en) * | 2007-07-11 | 2009-01-29 | Daiwa Industries Ltd | Refrigerator and method for preventing dew condensation in refrigerator |
| US20130000336A1 (en) * | 2009-12-28 | 2013-01-03 | Panasonic Healthcare Co., Ltd. | Cooling box |
| EP2386809A3 (en) * | 2010-05-14 | 2013-10-30 | Vestel Beyaz Esya Sanayi Ve Ticaret A.S. | A cooler device |
| WO2014079716A1 (en) * | 2012-11-21 | 2014-05-30 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerator having a refrigeration compartment |
| JP2014219115A (en) * | 2013-05-01 | 2014-11-20 | 菱熱工業株式会社 | Cold water manufacturing device |
-
2001
- 2001-11-30 JP JP2001366262A patent/JP2003166776A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009019808A (en) * | 2007-07-11 | 2009-01-29 | Daiwa Industries Ltd | Refrigerator and method for preventing dew condensation in refrigerator |
| US20130000336A1 (en) * | 2009-12-28 | 2013-01-03 | Panasonic Healthcare Co., Ltd. | Cooling box |
| US9772138B2 (en) * | 2009-12-28 | 2017-09-26 | Panasonic Healthcare Holdings Co., Ltd. | Cooling box |
| EP2386809A3 (en) * | 2010-05-14 | 2013-10-30 | Vestel Beyaz Esya Sanayi Ve Ticaret A.S. | A cooler device |
| WO2014079716A1 (en) * | 2012-11-21 | 2014-05-30 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerator having a refrigeration compartment |
| GB2523686A (en) * | 2012-11-21 | 2015-09-02 | Bsh Hausgeraete Gmbh | Refrigerator having a refrigeration compartment |
| RU2605753C1 (en) * | 2012-11-21 | 2016-12-27 | Бсх Хаусгерете Гмбх | Refrigerating device with refrigeration chamber |
| JP2014219115A (en) * | 2013-05-01 | 2014-11-20 | 菱熱工業株式会社 | Cold water manufacturing device |
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