JPH05240547A - Device for controlling temperature in cold-storage chamber in refrigerator - Google Patents

Device for controlling temperature in cold-storage chamber in refrigerator

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Publication number
JPH05240547A
JPH05240547A JP4318892A JP4318892A JPH05240547A JP H05240547 A JPH05240547 A JP H05240547A JP 4318892 A JP4318892 A JP 4318892A JP 4318892 A JP4318892 A JP 4318892A JP H05240547 A JPH05240547 A JP H05240547A
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JP
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Prior art keywords
temperature
chamber
cold
storage
refrigerator
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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.)
Granted
Application number
JP4318892A
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Japanese (ja)
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JP3354165B2 (en )
Inventor
Toshimichi Hirata
Motoharu Kobayashi
Masashi Toyoshima
素晴 小林
俊通 平田
昌志 豊嶋
Original Assignee
Sanyo Electric Co Ltd
三洋電機株式会社
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2500/00Problems to be solved
    • F25B2500/31Low ambient temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/14Sensors measuring the temperature outside the refrigerator or freezer

Abstract

PURPOSE: To obtain a device for controlling the temperature of the cold-storage chamber for a refrigerator which is designed to adjust the duty rate supplied to a temperature-compensating heater through checking the changing condition of the temperature in the cold-storage chamber every time the compressor starts.
CONSTITUTION: A device 40 for controlling the temperature of the cold-storage chamber for a refrigerator comprises a temperature-compensating heater 36 provided at a lower position in a cold-storage chamber, an outside-temperature sensor 65 for detecting the temperature outside the refrigerator, and a controller 46 for supplying current to the heater which sets the duty rate supplied to the heater every time the compressor motor 51 starts and at a duty rate specified when the temperature outside the refrigerator detected by the outside- temperature sensor 45 is below a reference temperature.
COPYRIGHT: (C)1993,JPO&Japio

Description

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

【0001】 [0001]

【産業上の利用分野】本発明は、冷蔵室の温度が設定温度よりも低下しやすい状況にある場合にこの冷蔵室の過冷却を防止するためのヒータに通電するようにした冷蔵庫の冷蔵室温度制御装置に関する。 The present invention relates to a refrigerator of the refrigerating compartment which is adapted to energize the heater for preventing supercooling of the refrigerating compartment when the temperature of the refrigerating compartment is in the lowered situation susceptible than the set temperature It relates to a temperature control device.

【0002】 [0002]

【従来の技術】本発明に先行する(i)実公平2−307 Prior to the Background of the present invention (i) the actual fair 2-307
06号公報には、庫内温度が高くかつ庫外温度も高い場合に圧縮機を作動させ、庫内温度が低くかつ庫外温度も低い場合にヒータが作動させるようにした保存庫の庫内温度制御装置が開示されている。 The 06 discloses, the inside temperature is high and the outside-compartment temperature to actuate the compressor is higher, lower inside temperature and the outside-compartment temperature is low when in a compartment of the storage box in which the heater is to actuate temperature control apparatus is disclosed. 特に庫外温度が低くかつ庫内温度が高い場合にあっては、ファンモータの発熱による昇温防止のためにファンモータを作動させないようにしたものである。 Particularly in a case outside-compartment temperature and-compartment temperature is low high, is obtained by so as not to operate the fan motor for heating prevention by heat generation of the fan motor.

【0003】また、本発明に先行する(ii)特開昭63− [0003] prior to the present invention (ii) JP 63-
29176号公報には、容量制御可能な圧縮機と、この圧縮機を最高周波数から最低周波数の間の周波数で動作させるコントローラと、圧縮機を最低周波数で動作させているときに庫内温度が設定温度よりも低下する状況において通電されるヒータとを備えた冷凍装置の運転制御装置が開示されている。 The 29176 discloses a capacity controllable compressor, and a controller for operating at frequencies between the lowest frequency the compressor from the maximum frequency,-compartment temperature set when operating the compressor at the lowest frequency operation control device for a refrigeration system and a heater is energized in the context of lower than the temperature is disclosed.

【0004】 [0004]

【発明が解決しようとする課題】前記(i)の公報にあっては、圧縮機の運転中に庫内が設定温度より低下しやすい傾向にある場合に、圧縮機の運転停止が繰り返されることを防止するものではなく、圧縮機の停止中に限ってヒータの通電操作を行うようにしたものである。 In the publication of the [0006] (i), when the refrigerator during the operation of the compressor is in the lowered prone than the set temperature to, shutdown of the compressor is repeated not to prevent, in which to perform the energization operation of the heater only during stop of the compressor. 特に圧縮機の運転・停止が頻繁に行われることがあるので、圧縮機の寿命を縮めてしまう不具合いがあった。 In particular, since the operation and stopping of the compressor may be performed frequently, there is a problem physician would shorten the life of the compressor.

【0005】一方、前記(ii)の公報にあっては、圧縮機の最低容量運転時において庫内温度が設定温度以下に低下しやすい状況となった場合には、ヒータに通電して庫内温度の低下を抑制し圧縮機の運転・停止を繰り返さないようにしたものである。 On the other hand, the In the publications (ii), when the inside temperature at the minimum capacity during the operation of the compressor becomes reduced easily situations below the set temperature, the refrigerator by energizing the heater suppressing a decrease in temperature is obtained by not repeat the operation and stop of the compressor. しかし、ヒータは連続通電であるため、ヒータの容量によっては庫内温度が上昇しやすい。 However, since the heater is continuously energized, the inside temperature tends to increase the capacity of the heater. またヒータの通電・停止が頻繁に繰り返されると、庫内温度の増減が顕著になって保存食品に悪く影響を及ぼす危惧があった。 Also the energization and stop of the heater is frequently repeated, increasing or decreasing the inside temperature had bad influence concern to save food becomes conspicuous.

【0006】家庭用冷蔵庫においては、通常圧縮機及び送風機の動作が冷凍室の温度に基づいて制御され、冷気量制御用のダンパー装置の動作が冷蔵室の温度に基づいて制御されるものである。 [0006] In a household refrigerator, the operation of the normal compressor and blower are controlled based on the temperature of the freezing chamber, in which the operation of the damper device for cool air amount control is controlled based on the temperature of the refrigerating compartment . このため、上述の(ii)の制御装置をそのまま家庭用冷蔵庫に適用しても、冷凍室の温度が設定温度以下にある場合に、冷蔵室に冷気供給が行えず冷蔵室の温度を設定温度に維持することができなかったり、ヒータの通電で冷蔵室の温度が上昇しすぎて冷蔵食品の品温上昇を招く等の不具合いがあった。 Therefore, even if applied directly to a household refrigerator control apparatus of the above-described (ii), when the temperature of the freezer compartment is below the set temperature, can not be carried out cold air supplied to the refrigerating compartment the temperature of the refrigerating compartment temperature or it could not be maintained, the temperature of the refrigerating compartment at the energization of the heater had trouble physician such as causing a product temperature rise in frozen food items too elevated.

【0007】そこで本発明では、圧縮機の起動毎に冷蔵室の温度変化状況をチェックして、冷蔵室の温度補償ヒータの通電率を調整するようにした冷蔵庫の冷蔵室温度制御装置を提供することを目的とする。 [0007] Therefore, in the present invention, by checking the change in temperature conditions of the refrigerating compartment for each activation of the compressor, to provide a refrigerator of the refrigerating compartment temperature control device to adjust the duty ratio of the temperature compensation heater of the refrigerating compartment and an object thereof.

【0008】 [0008]

【課題を解決するための手段】本発明は、冷凍室の温度に基づいて圧縮機及び送風機の動作を制御し、冷蔵室の温度に基づいて冷蔵室への冷気供給量を制御するようにした冷蔵庫において、庫外温度低下時における冷蔵室の過冷却を防止するために、冷蔵室の下部に配置された温度補償ヒータと、庫外の温度を検出する庫外温度センサと、圧縮機の起動毎に前記ヒータの通電率を定め、前記庫外温度センサで検出された庫外温度が基準温度より低いときにこの定められた通電率で前記ヒータに通電する制御装置とを備えた冷蔵庫の冷蔵室温度制御装置を提供するものである。 The present invention SUMMARY OF] controls the operation of the compressor and the blower based on the temperature of the freezer compartment, and to control the cold air supply to the refrigerating compartment on the basis of the temperature of the refrigerating compartment in the refrigerator, in order to prevent the refrigerating compartment of supercooling during cold storage outside temperature decrease, the temperature compensation heater disposed in the lower portion of the refrigerating compartment, a refrigerator outside temperature sensor for detecting the temperature outside the compartment, activation of the compressor determines the duty ratio of the heater for each refrigerator refrigeration comprising a control device for energizing the chamber outside this the heater energization rate defined when the temperature sensor at the detected refrigerator outside temperature is lower than the reference temperature there is provided a room temperature-controlling device.

【0009】また、冷凍室の温度を検出する冷凍室温度センサを備え、この冷凍室温度センサで検出された冷凍室温度に基づいて圧縮機の動作を制御するようにした冷蔵庫において、冷蔵室の温度変動に見合ったヒータの通電率とするために、冷蔵室の下部に配置され冷蔵室内を加熱するヒータと、庫外の温度を検出する庫外温度センサと、この庫外温度センサで検出された庫外温度が基準温度より低いときに最低の通電率で前記ヒータに通電し、前記冷凍室温度が冷凍室の設定温度を上回ったときの冷蔵室の温度に基づいて前記ヒータの通電率を変化させる制御装置とを備えた冷蔵庫の冷蔵室温度制御装置を提供するものである。 Further, with a freezing compartment temperature sensor for detecting the temperature of the freezing compartment, in a refrigerator which is adapted to control the operation of the compressor based on the detected freezer compartment temperature at this freezing compartment temperature sensor, the refrigerating compartment to the duty factor of the heater commensurate with temperature variation, and a heater for heating the refrigeration compartment is disposed under the refrigerator compartment, the refrigerator outside temperature sensor for detecting the temperature outside the refrigerator, is detected by the compartment outside temperature sensor and outside-compartment temperature is energizing the heater at the lowest duty ratio when lower than the reference temperature, the duty ratio of the heater based on the temperature of the refrigerating compartment when the freezing compartment temperature exceeds the set temperature of the freezing compartment it is to provide a refrigerator of the refrigerating compartment temperature control device and a control device for varying.

【0010】 [0010]

【作用】請求項1によれば、温度補償ヒータは庫外温度が基準温度より低くなったときに通電されるため、庫外温度低下時における冷蔵室の過冷却を抑制できることに加え、このヒータの通電率が圧縮機の起動毎に定められるため、圧縮機の起動に合わせてヒータの加熱量を調整することができ、ヒータの無駄な発熱を抑制し消費電力軽減に寄与できる。 SUMMARY OF According to claim 1, the temperature compensation heater to be energized when the outside-compartment temperature is lower than the reference temperature, in addition to being able to suppress the refrigerating compartment of supercooling during cold storage outside temperature decrease, the heater since the duty ratio is determined for each start of the compressor, in accordance with the activation of the compressor can be adjusted the heating amount of the heater, which contributes to suppressing the power consumption reduces the wasteful heat generation of the heater.

【0011】また請求項2によれば、ヒータは最初に最低の通電率で通電され、冷凍室の温度が設定温度を上回ったときに冷蔵室の温度に基づいてこのヒータの通電率が変化するため、冷蔵室の温度変動に見合った通電率とすることができ、冷凍室の温度に従属するかたちとなっていた冷蔵室の温度を適宜冷蔵設定温度に維持することが可能となり、ヒータの消費電力の軽減が図れる。 [0011] According to claim 2, the heater is first energized at the lowest duty ratio, duty ratio of the heater is changed based on the temperature of the refrigerating compartment when the temperature of the freezing compartment is higher than the set temperature Therefore, it is possible to duty ratio commensurate with the temperature variation of the refrigerating compartment, it is possible to maintain the temperature of the refrigerating compartment which has been a form which depends on the temperature of the freezing chamber to the appropriate refrigerating set temperature, the consumption of the heater It attained the power of mitigation.

【0012】 [0012]

【実施例】以下図面に基づいて本発明の実施例を説明する。 EXAMPLES Based on the drawings illustrating an embodiment of the present invention.

【0013】1は家庭用冷蔵庫であり、この冷蔵庫1はその本体を構成する前面開口の断熱箱2と、この開口を閉塞する扉3,4,5,6,7,8とで構成されている。 [0013] 1 is a household refrigerator, the refrigerator 1 includes a heat insulating box 2 of the front opening that make up the body, is composed of a door 3,4, 5,6, 7,8 for closing the opening there.

【0014】11は断熱箱2の内部を上下に仕切る横仕切壁であり、本実施例ではこの横仕切壁11の上方を凍結温度に冷却される冷凍室12、下方を食品が凍結しない温度に冷却される貯蔵室とするものである。 [0014] 11 is a transverse partition wall which partitions the interior of the insulating box 2 vertically, in the present embodiment freezer compartment 12 is cooled to above the horizontal partition wall 11 into the freezing temperature, the temperature of the lower food does not freeze it is an cooled the storage compartment. 尚、貯蔵室は仕切前部材13及び仕切板14により更に上下に仕切られ、仕切板14の上方を3℃程度の温度に冷却される冷蔵室15、下方を1℃〜7℃程度の温度帯で温度設定可能な選択室16としている。 Note that the storage chamber is partitioned into more vertically by the partition front member 13 and the partition plate 14, the refrigerating compartment 15, the temperature zone of about 1 ° C. to 7-° C. downward to be cooled above the partition plate 14 to 3 ° C. temperature of about in which the temperature can be set selectively chamber 16.

【0015】扉3及び4は、冷凍室12に対応する前面開口を閉塞する回動式の左右一対の扉であり、両扉のうちのいずれか一方の扉(本実施例では扉4)の非枢支側には、この前面開口を左右に仕切る仕切部材としての仕切体17が回動自在に設けてある。 The door 3 and 4 are a pair of right and left doors of the revolvable for closing the front opening corresponding to the freezing chamber 12, the either one of the two doors door (door 4 in this embodiment) the unsupported side, the partition member 17 as a partition member for partitioning the front opening to the left and right is provided rotatably. また扉5及び6は、 The door 5 and 6,
冷蔵室15に対応する前面開口を閉塞する回動式の左右一対の扉であり、扉6の非枢支側には開口を左右に仕切る仕切部材としての仕切体18が回動自在に設けてある。 A pair of left and right doors of the revolvable for closing the front opening corresponding to the refrigerating compartment 15, the unsupported side of the door 6 a partition member 18 as a partition member for partitioning the opening to the right and left are rotatably provided is there.

【0016】扉7及び8は、選択室16において、縦仕切壁30によって左右に仕切られるボトル室及び野菜室に対応する引き出し式扉であり、両扉にはそれぞれ主としてボトル及び野菜を収納するための上面開口の容器2 The door 7 and 8, in the selection chamber 16, the vertical partition walls 30 are drawer-type door corresponding to the bottle chamber, and the vegetable compartment that is partitioned into left and right, because the two doors to primarily accommodating bottles and vegetables, respectively container 2 of the upper opening
1,22が着脱自在に設けてある。 1, 22 is provided detachably.

【0017】冷凍室12の背部には冷却器カバー31と断熱箱2とで形成される冷却器室23があり、この冷却器室23には冷却器としてのプレートフィン型蒸発器2 [0017] The back of the freezing chamber 12 there is a cooler compartment 23 formed by the cooler cover 31 and the heat insulating box 2, plate-fin evaporator 2 as a cooler in the cooling device compartment 23
4及びシロッコファン等の送風機25が配置されている。 Blower 25 is arranged such 4 and sirocco fan. 尚、冷却器室は、カバー31に形成した吹出口にて冷凍室12と連通する一方、ダクト(図示せず)により横仕切壁11の後部で冷蔵室15と連通している。 The cooling unit chamber, while communicating with the freezing chamber 12 at outlet port formed in the cover 31, and communicates with the refrigerating compartment 15 at the rear of the transverse partition walls 11 by a duct (not shown). 冷凍室12は2枚の棚26,27で上中下3段に仕切られており、下段は縦仕切板により左右に仕切られている。 Freezing compartment 12 is partitioned into upper, middle bottom three stages by two shelves 26 and 27, and the lower part is divided into right and left by the vertical partition. また、中段左側の後部には自動製氷機が配置されており、 Moreover, an automatic ice maker is disposed in the rear of the middle left,
この後部空間を製氷室という。 The rear space of the ice compartment. 製氷室は製氷機カバーにて覆われるとともに中段左側の前部と仕切られている。 Freezer is partitioned with the front of the middle left with are covered with ice machine cover.
さらに、縦仕切板の左側の空間には自動製氷機で製作した氷を貯める容器が出し入れ自在に配置される。 Furthermore, the left side of the space of the vertical partition is a container to accumulate was fabricated in the automatic ice maker ice is placed freely out.

【0018】縦仕切板の右側空間には、底板、左右側板及び背板からなる容器が冷凍室の底壁となる横仕切壁1 [0018] On the right side space of the vertical partition, the bottom plate, the horizontal partition wall 1 container made side plates and the back plate with the bottom wall of the freezing compartment
1の上面と間隔を存して出し入れ自在に配置され、吹出口から吹き出された冷気で冷却される急速冷凍室が形成されている。 Is out freely disposed presence of 1 of the upper surface and spacing, quick freezing compartment to be cooled by the cold air blown out from the blowout opening is formed. この容器の底板にはアルミニウム等熱伝導性の良好な金属板を採用している。 Employs aluminum or the like having good thermal conductivity metal plate to the bottom plate of the container. 尚、冷凍室12に吹き出された冷気は、容器の底板と横仕切壁11とで作られる冷気帰還路を介して冷却器室の下部へ帰還する。 Incidentally, the cold air blown out to the freezer compartment 12 is fed back through the cold air return path made by the bottom plate and the lateral partition walls 11 of the vessel to the bottom of the cooler compartment. また、以下の説明の便宜上、急速冷凍室以外の冷凍室を第1冷凍室と称する。 For convenience of the following description, the freezer compartment other than quick freezing compartment is referred to as first freezing chamber.

【0019】第1冷凍室内には、その温度を検出するための2つの温度センサが設けてあり、2つのうちの一方は吹出口の近傍に設けられた冷凍室温度センサとしての主温度センサ(図3に42として示す)であり、2つのうちの他方は製氷室の製氷皿近傍に設けられた従温度センサである。 [0019] The first freezing chamber, is provided with two temperature sensors for detecting the temperature, the main temperature sensor of the freezing compartment temperature sensor provided in one of the two in the vicinity of the outlet ( are shown in Figure 3 as 42), the other of the two is 従温 temperature sensor provided in the ice tray near the ice making compartment. また、急速冷凍室には、吹出口近傍に急冷室温度センサが設けられ、容器の底板下面に接触する負荷温度センサが設けてある。 In addition, the quick freezing compartment, is provided quench chamber temperature sensor in the air outlet near are provided load temperature sensor in contact with the bottom plate bottom surface of the container.

【0020】横仕切壁11の直下には、温度制御幅が狭く食品が凍結する直前の温度即ち氷温温度(例えば−1 The next to the right under the partition walls 11, the temperature namely freezing temperature immediately before the temperature control width of the food is frozen narrow (e.g. -1
℃程度の温度)に維持される氷温室が形成されている。 Ice greenhouse is maintained at a temperature) of about ℃ are formed.
前記冷却器室は、ダクト28に形成した開口によってダクトを介してこの氷温室及び冷蔵室15にも連通している。 The cooler compartment is communicated to the ice greenhouses and the refrigerating chamber 15 through the duct by opening formed in the duct 28. 氷温室への冷気供給は、ダクトの途中に設けた氷温用ダンパーを含む氷温室の冷気制御装置により制御される。 Cold air supply to the ice greenhouse is controlled by the cold air control device for ice greenhouse comprising a damper for freezing which is provided in the middle of the duct. また冷蔵室15への冷気供給は、ダクトの途中に設けた冷蔵用ダンパーを含む冷蔵室冷気制御装置(図示せず)により制御されるものである。 The cool air supply to the refrigerating chamber 15, and is controlled by the refrigerating compartment cold air control device including a refrigeration damper provided in the middle of the duct (not shown).

【0021】32は断熱箱2の内箱の冷蔵室下部に対応する部分の断熱材側の面に取り付けられた冷蔵室の温度補償用のヒータであり、33は同様に野菜室の温度補償用のヒータである。 [0021] 32 is a heater for temperature compensation of the refrigerating compartment which is attached to the surface of the heat insulator side of the portion corresponding to the refrigerating compartment lower portion of the inner box of the heat insulating box 2, 33 for temperature compensation similarly crisper which is a heater. これらヒータ32及び33は、直列に接続され後述する冷蔵室温度制御装置40によりその通電・非通電が制御されるので、図3において両ヒータを合わせて温度補償ヒータ34として示すことにする。 These heaters 32 and 33, because the energization and non-energization by the refrigerating compartment temperature control device 40 to be described later are connected in series is controlled, it will be shown as a temperature compensation heater 34 to fit both a heater 3.

【0022】冷蔵室温度制御装置40は、冷凍室12の冷却温度を設定する冷凍室温度設定手段41と、冷凍室温度センサ(即ち上述の主温度センサ)42と、冷蔵室15の温度を検出する冷蔵室温度センサ43と、冷蔵室15の冷却温度を設定する冷蔵室温度設定手段44と、 The refrigerating compartment temperature control device 40 includes a freezing compartment temperature setting means 41 for setting a cooling temperature of the freezing compartment 12, a freezing compartment temperature sensor (or primary temperature sensor described above) 42, detects the temperature of the refrigerating compartment 15 a refrigerating compartment temperature sensor 43 for a refrigerating compartment temperature setting means 44 for setting a cooling temperature of the refrigerating compartment 15,
冷蔵庫1の庫外温度を検出する庫外温度センサ45と、 A compartment outside temperature sensor 45 for detecting the compartment temperature outside the refrigerator 1,
前記温度補償ヒータ34及び圧縮機モータ並びにファンモータの動作を制御する制御装置としての制御手段46 Wherein the temperature compensation heater 34 and the compressor motor and control means as a control device for controlling the operation of the fan motor 46
とからなる。 Consisting of. 尚、圧縮機モータ及びファンモータを同時起動、同時停止させるものとして以下の説明を行うため、図3においては両モータをまとめて圧縮機モータ5 Incidentally, the simultaneous activation of the compressor motor and fan motor, to perform the following description as causing a simultaneous stop, compressor motor 5 together both motors 3
1として示すことにする。 It will be shown as 1.

【0023】制御手段46は、5つの入力情報に基づいて温度補償ヒータ34及び圧縮機モータ51の制御指令を出す判別部47と、この判別部47からの制御指令に基づいて温度補償ヒータ34の通電信号ON、非通電信号OFFと、圧縮機モータ51の起動信号ST、停止信号SPを出力する信号出力部とを有する。 The control unit 46 includes a determination unit 47 issues a control command of the temperature compensation heater 34 and compressor motor 51 on the basis of the five input information, the temperature compensation heater 34 based on a control instruction from the determination unit 47 energizing signal ON, has a non-energization signal OFF, the start signal ST of the compressor motor 51, and a signal output section for outputting a stop signal SP. 尚、判別部4 Incidentally, the determination unit 4
7は5つの入力情報に基づき制御タイマ49及び遅延タイマ50を動作させ、その動作を待って制御指令を出力するものである。 7 operates the control timer 49 and the delay timer 50 based on the five input information, and outputs a control command waiting for the operation.

【0024】ただし、5つの入力情報とは、冷凍室温度設定手段41で設定された冷凍温度FSと、主温度センサ42で検出された冷凍室温度Fと、冷蔵室温度センサ43で検出された冷蔵室温度Rと、冷蔵室温度設定手段で設定された冷蔵温度RSと、庫外温度センサ45で検出された庫外温度ATのことである。 [0024] However, the five input information, the freezing temperature FS set by the freezing compartment temperature setting unit 41, a freezing compartment temperature F detected by the main temperature sensor 42, detected by the refrigerator compartment temperature sensor 43 a refrigerating compartment temperature R, the refrigeration temperature RS set by the refrigerating compartment temperature setting means, is that of the detected refrigerator outside temperature aT at refrigerator outside temperature sensor 45. また制御指令とは、制御タイマ49の動作に基づき出る指令と、遅延タイマ50の動作に基づき出る指令のことであり、前者の指令は温度補償ヒータの制御に関する指令であるためヒータ指令といい、後者指令は圧縮機モータの制御に関する指令であるためモータ指令ということにする。 Also a control command, command and exiting on the basis of the operation of the control timer 49 refers to a command out on the basis of the operation of the delay timer 50, the former instruction is referred to as a heater command for a command related to the control of the temperature compensation heater, the latter directive will be referred to as motor command for a command to the control of the compressor motor.

【0025】以上の構成に基づき図4及び図5のフローチャートを参照しながら冷蔵室温度制御装置40の動作の流れを説明する。 [0025] with reference to the flowcharts of FIGS. 4 and 5 on the basis of the above configuration will be described the flow of operation of the refrigerating compartment temperature control device 40.

【0026】まず電源が投入されると、ステップS1で庫外温度ATがヒータ34の通電を開始させるために予め定めた基準温度(例えば11℃)より低いか否かが判断され、基準温度以上であればステップS2でヒータ3 [0026] First, when power is turned on, the refrigerator outside temperature AT at step S1 is determined whether less than a predetermined reference temperature to initiate the energization of the heater 34 (e.g., 11 ° C.) is the reference temperature or higher heater 3 in step S2 as long as
4の非通電信号OFFを出力し、ステップS3でヒータ34のON時間Aを最低通電率であるレベル1にセットし、ステップS4で制御タイマ49の設定時間TM1 Outputs deenergized signal OFF of 4 was set in the level 1 is the lowest duty ratio of the ON time A of the heater 34 at step S3, the set time of the control timer 49 in step S4 TM1
(以下単にTM1という)としてこのAを入力し(即ち通電率を最低レベルにセットし)、ステップS21へ移行する。 (Hereinafter simply referred to as TM1) (sets the words duty factor to the lowest level) enter the A as, the process proceeds to step S21.

【0027】ステップS1で庫外温度が基準温度より低ければ、ステップS5で冷蔵室温度Rが冷蔵温度RSより低いか否かが判断され、冷蔵温度RS以上であればステップS2へ移行し、冷蔵温度RSより低ければステップS6でヒータ34の通電中か否かが判断され、通電中でなければステップS7でTM1の減算動作(即ちTM [0027] A low-compartment outside temperature is higher than the reference temperature at step S1, whether the refrigerating compartment temperature R is lower than the refrigeration temperature RS is determined in step S5, the process proceeds to step S2 if refrigerated temperature RS or refrigeration whether or not the energization of the heater 34 in step S6 if lower than the temperature RS is determined, if not being energized in step S7 TM1 of a subtraction operation (i.e. TM
1から1を引いた値をTM1とする操作)を行い、ステップS8でTM1の減算動作が終了した(即ちTM1が0となった)か否かが判断され、終了していなければステップS21へ移行し、終了していればステップS9でヒータ34の通電信号ONを出力してヒータに通電し、 The value obtained by subtracting 1 from 1 do) to TM1, whether subtraction operation of TM1 is completed in step S8 (i.e. TM1 is zero) is determined, to step S21 if not terminated migrated, it energizes the heater and outputs an energization signal oN of the heater 34 in step S9 if the ends,
ステップS10でTM1としてAを入力して、ステップS21へ移行する。 Type A as TM1 in step S10, the process proceeds to step S21.

【0028】ステップS6でヒータ34が通電中であれば、ステップS11でTM1の減算動作を行い、ステップS12でTM1の減算動作が終了したか否かが判断され、終了していなければステップS21へ移行し、終了していればステップS13でヒータ34の非通電信号O [0028] If the heater 34 is being energized in the step S6, it performs a subtraction operation of TM1 in step S11, whether the subtraction operation of TM1 is completed in step S12 it is determined, to step S21 if not terminated migrated, non-energization signal O of the heater 34 at step S13 if the ends
FFを出力してヒータを非通電とし、ステップS14でTM1にヒータのオンオフサイクルの1サイクル時間B And de-energized the heater outputs the FF, 1 cycle time of the heater on-off cycle TM1 in step S14 B
からAを引いた値(即ち1サイクル時間中におけるヒータのOFF時間)をセットして、ステップS21へ移行する。 It sets a value obtained by subtracting the (i.e. OFF time of the heater during one cycle time) A from the routine proceeds to step S21.

【0029】ステップS21では、冷凍室温度Fが冷凍温度FSより高いか否かが判断され、冷凍温度FS以下であれば、ステップS22で、圧縮機モータ51が運転中か否かが判断され、運転中でなければステップS24 [0029] In step S21, whether the freezer compartment temperature F is higher than the freezing temperature FS is determined, equal to or less than the freezing temperature FS, in step S22, the compressor motor 51 is whether in operation or not. if it is not in operation step S24
へ移行し、運転中であれば冷凍室温度Fが冷凍温度F以下であることを示すフラグF1(以下単にフラグF1という)をセットし、ステップS24で圧縮機モータ51 It migrated to, and sets the flag F1 (hereinafter referred to simply as flag F1) indicating that the freezing compartment temperature F if in operation is below the freezing temperature F, the compressor motor 51 at step S24
の停止信号STを出力して圧縮機モータを停止させて、 Output to the compressor motor stop signal ST is stopped,
ステップS30へ移行する。 The process proceeds to step S30.

【0030】ステップS21で冷凍室温度Fが冷凍温度FSより高ければ、ステップS25でフラグF1の有無(即ちリセットされているか否か)が判断され、セットされていればステップS30へ移行し、リセットされていればステップS26で圧縮機モータ51の起動信号S [0030] is higher than the freezing room temperature F refrigeration temperatures FS at step S21, whether the flag F1 (i.e. whether it is reset) is determined in step S25, the process proceeds to step S30 if it is set, reset activation signal S of the compressor motor 51 at step S26 if it is
Tを出力して圧縮機モータを運転し、ステップS27で圧縮機起動時の冷蔵室温度Rが冷蔵温度RSより低いか否かが判断され、冷蔵温度RSより低ければステップS And outputs a T driving a compressor motor, whether the refrigerating compartment temperature R of the compressor startup is lower than the refrigeration temperature RS is determined in step S27, step S if lower than refrigeration temperatures RS
28でヒータのオン時間Aを1レベル上げる動作(即ちAに1レベル加えた値をAとする操作)を行い、ステップS30へ移行し、冷蔵温度RS以上であればステップS29でヒータのオン時間Aを1レベル下げる動作(即ちAから1レベル引いた値をAとする操作)を行い、ステップS30へ移行する。 28 performs heater on-time A one level increasing operation (i.e. operation to a level value obtained by adding to the A and A), the process proceeds to step S30, the heater on-time in step S29 if the refrigerating temperature RS or the a for 1 levels lowering operation (i.e. operation to the 1 level minus the a from a), a process proceeds to step S30.

【0031】次にステップS30では、フラグF1がセットされているか否かが判断され、リセットされていればステップS1へ復帰し、セットされていればステップS31で遅延タイマ50の遅延時間TM2(即ち圧縮機モータの停止後一定時間はモータを起動させず圧縮機を保護するためのセーフティー時間)の減算動作を行い、 [0031] At next step S30, whether the flag F1 is set or not is determined, and returns to step S1 if it is reset, the delay time TM2 in step S31 by the delay timer 50 if it is set (i.e. predetermined time after the stop of the compressor motor performs a subtraction operation of the safety time) for protecting the compressor without activating the motor,
ステップS32で減算動作が終了したか否かが判断され、終了していなければステップS1へ復帰し、終了していればステップS33でフラグF1をリセットして、 Step S32 subtraction operation is judged whether or not finished, returns to step S1 If not completed, and resets the flag F1 in step S33 if the ends,
ステップS1へ復帰する。 It returns to step S1.

【0032】以下上述のステップS1〜S14及びS2 The following described steps S1~S14 and S2
1〜S33までの動作を繰り返すことにより、庫外温度ATが基準温度(本例では11℃)よりも低ければヒータ34をオンオフサイクルで動作させ、基準温度以上であればヒータを非通電とし、庫外温度低下時における冷蔵室15の過冷却(即ち冷蔵温度RSを下回る状態が継続すること)を抑制するものである。 By repeating the operation until 1~S33, it is lower than the refrigerator outside temperature AT is the reference temperature (11 ° C. in this embodiment) is operated heater 34 off cycle, a non-energized heater if the reference temperature or higher, it is intended to suppress the supercooling of the refrigerating compartment 15 (i.e. the state continues below the refrigeration temperature RS) during compartment outside temperature drop. 尚、庫外温度が基準温度より低くなったとき、最初は最低の通電率でヒータのオンオフサイクル動作を行い、圧縮機モータが起動される毎に冷蔵室温度Rに基づいてヒータ34の通電率を定め、順次ヒータの通電率(加熱量といってもよい) Incidentally, when the refrigerator outside temperature is lower than the reference temperature, the first performs the on-off cycling of the heater at the lowest duty ratio, the duty factor of the heater 34 compressor motor based on the refrigerating compartment temperature R each time it is activated the set (may be referred to as a heating amount) sequential energization ratio of the heater
を見直すようにしている。 So that review. 特に、冷凍室温度Fが冷凍室の設定温度FSを上回ったときに、冷蔵室温度Rの変化状況(即ち冷蔵温度RSを下回る傾向か上回る傾向か) In particular, when the freezing compartment temperature F exceeds the set temperature FS of the freezing chamber, (or tendency or exceed tendency below the words refrigeration temperature RS) changes the status of the refrigerating compartment temperature R
を確認し、下回る傾向のときはヒータの通電率を1レベル上げ加熱量を高めて冷蔵室温度の低下を抑制し、上回る傾向のときはヒータの通電率を1レベル下げ加熱量を低下させて冷蔵室温度の上昇を抑制するようにしたので、庫外温度低下時にあっても冷蔵室温度を冷蔵温度で安定させることができるものである。 Verify, when the trend below by suppressing the deterioration of the refrigerating compartment temperature increases the 1 level increased heating amount the energization ratio of the heater, to reduce the 1 level lowering amount of heating energization ratio of the heater when the trend over since so as to suppress the increase of the refrigerating compartment temperature, in which even when the refrigerator outside temperature drop can be stabilized refrigerating compartment temperature at refrigeration temperatures.

【0033】このような冷蔵室温度制御装置40により、圧縮機の起動毎若しくは冷凍室温度が冷凍温度を上回るたびに冷蔵室温度に基づいて、補償ヒータの通電率を見直し調整するようにしたので、ヒータの消費電力を抑制しながら低外気温時における冷蔵室の過冷却を防止することができる。 [0033] Such a refrigerating compartment temperature control device 40, starts each or freezer compartment temperature of the compressor based on the refrigerating compartment temperature each time above the freezing temperature. Thus adjusting reviewing duty factor of the compensation heater , it is possible to prevent excessive cooling of the refrigerating compartment at the time of low outside air temperature while suppressing the power consumption of the heater.

【0034】 [0034]

【発明の効果】本発明の請求項1によれば、温度補償ヒータは庫外温度が基準温度より低くなったときに通電されるので、庫外温度低下時における冷蔵室の過冷却を抑制できることに加え、ヒータの通電率を圧縮機の起動毎に定めるようにしたので、圧縮機の起動に合わせてヒータの加熱量を調整することができ、無駄な発熱を抑制して消費電力が軽減できる。 According to claim 1 of the present invention, the temperature compensation heater is energized when the outside-compartment temperature is lower than the reference temperature, it can be suppressed refrigerating compartment of supercooling at refrigerator temperature outside drop in addition, since the to determine the duty factor of the heater for each activation of the compressor, in accordance with the activation of the compressor can be adjusted the heating amount of the heater, the power consumption can be reduced by suppressing the wasteful heat generation .

【0035】一方請求項2によれば、庫外温度低下時にヒータがまず最低の通電率で通電され、冷凍室の温度が設定温度を上回ったときに冷蔵室の温度に基づいてヒータの通電率を変化させるようにしたので、ヒータによる急激な温度上昇を抑制し、かつ、ヒータの発熱量変化で冷蔵室の温度低下を抑え、冷蔵室の温度を徐々に設定温度に近づけてゆくことができ、消費電力を抑えた効率的な温度制御が行える。 On the other hand, according to claim 2, the heater is first energized at the lowest duty ratio at the time of refrigerator outside temperature decrease, duty ratio of the heater based on the temperature of the refrigerating compartment when the temperature of the freezing compartment is higher than the set temperature since so as to vary the suppresses abrupt temperature rise of the heater, and to suppress the temperature drop of the refrigerating compartment in heat value change of the heater, it can be Yuku closer the temperature of the refrigerating compartment gradually set temperature , it enables efficient temperature control with reduced power consumption.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の冷蔵庫の扉を開けた状態の外観斜視図である。 1 is an external perspective view of a state in which opening the refrigerator door of the present invention.

【図2】冷蔵庫の扉を外した状態の縦断面図である。 FIG. 2 is a vertical cross-sectional view of a state in which remove the refrigerator door.

【図3】冷蔵室温度制御装置のブロック回路図である。 3 is a block circuit diagram of the refrigerating compartment temperature control device.

【図4】冷蔵室温度制御装置の動作の流れを示すフローチャート図である。 4 is a flowchart showing the flow of operation of the refrigerating compartment temperature control device.

【図5】冷蔵室温度制御装置の動作の流れを示すフローチャート図である。 5 is a flowchart showing the flow of operation of the refrigerating compartment temperature control device.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 冷蔵庫 15 冷蔵室 34 温度補償ヒータ 40 冷蔵室温度制御装置 41 冷凍室温度設定手段 42 冷凍室温度センサ 43 冷蔵室温度センサ 44 冷蔵室温度設定手段 45 庫外温度センサ 46 制御装置(制御手段) 1 refrigerator 15 refrigerating compartment 34 temperature compensation heater 40 refrigerating compartment temperature control system 41 freezing compartment temperature setting unit 42 freezing compartment temperature sensor 43 refrigerating compartment temperature sensor 44 refrigerating compartment temperature setting means 45 outside-compartment temperature sensor 46 control device (control means)

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 冷凍室の温度に基づいて圧縮機及び送風機の動作を制御し、冷蔵室の温度に基づいて冷蔵室への冷気供給量を制御するようにした冷蔵庫において、冷蔵室の下部に配置された温度補償ヒータと、庫外の温度を検出する庫外温度センサと、圧縮機の起動毎に前記ヒータの通電率を定め、前記庫外温度センサで検出された庫外温度が基準温度より低いときにこの定められた通電率で前記ヒータに通電する制御装置とを備えたことを特徴とする冷蔵庫の冷蔵室温度制御装置。 1. A controls the operation of the compressor and the blower based on the temperature of the freezing compartment, in a refrigerator which is adapted to control the cold air supply to the refrigerating compartment on the basis of the temperature of the refrigerating compartment, at the bottom of the refrigerating compartment and arranged temperature compensation heater, a refrigerator outside temperature sensor for detecting the temperature outside the refrigerator, set the energization ratio of the heater for each activation of the compressor, refrigerator outside temperature detected by the outside-compartment temperature sensor reference temperature refrigerator refrigerating compartment temperature control apparatus characterized by comprising a control device for energizing the heater at this a defined duty factor when lower.
  2. 【請求項2】 冷凍室の温度を検出する冷凍室温度センサを備え、この冷凍室温度センサで検出された冷凍室温度に基づいて圧縮機の動作を制御するようにした冷蔵庫において、冷蔵室の下部に配置され冷蔵室内を加熱するヒータと、庫外の温度を検出する庫外温度センサと、この庫外温度センサで検出された庫外温度が基準温度より低いときに最低の通電率で前記ヒータに通電し、前記冷凍室温度が冷凍室の設定温度を上回ったときの冷蔵室の温度に基づいて前記ヒータの通電率を変化させる制御装置とを備えたことを特徴とする冷蔵庫の冷蔵室温度制御装置。 2. A includes a freezing compartment temperature sensor for detecting the temperature of the freezing compartment, in a refrigerator which is adapted to control the operation of the compressor based on the detected freezer compartment temperature at this freezing compartment temperature sensor, the refrigerating compartment wherein a heater and a refrigerator outside temperature sensor for detecting the temperature outside the compartment, the lowest duty ratio when the refrigerator outside temperature detected by the compartment outside temperature sensor is lower than the reference temperature for heating the refrigeration compartment is disposed in the lower energizing the heater, the freezing chamber refrigerator of the refrigerating compartment the temperature is characterized in that a control device for varying the duty ratio of the heater based on the temperature of the refrigerating compartment when exceeds the set temperature of the freezing compartment temperature control device.
JP4318892A 1992-02-28 1992-02-28 Refrigerator of the refrigerating compartment temperature control device Expired - Fee Related JP3354165B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4318892A JP3354165B2 (en) 1992-02-28 1992-02-28 Refrigerator of the refrigerating compartment temperature control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4318892A JP3354165B2 (en) 1992-02-28 1992-02-28 Refrigerator of the refrigerating compartment temperature control device

Publications (2)

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JPH05240547A true true JPH05240547A (en) 1993-09-17
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Cited By (4)

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Publication number Priority date Publication date Assignee Title
JP2008057919A (en) * 2006-09-01 2008-03-13 Hitachi Appliances Inc Refrigerator
CN102331155A (en) * 2011-10-19 2012-01-25 合肥华凌股份有限公司 Refrigeration device and composite control device for same
JP2013100986A (en) * 2003-03-28 2013-05-23 Lg Electronics Inc Refrigerator
CN105258446A (en) * 2015-11-05 2016-01-20 青岛海尔股份有限公司 Refrigerator control method and system with linear compressor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013100986A (en) * 2003-03-28 2013-05-23 Lg Electronics Inc Refrigerator
US8850841B2 (en) 2003-03-28 2014-10-07 Lg Electronics Inc. Refrigerator
US8850843B2 (en) 2003-03-28 2014-10-07 Lg Electronics Inc. Refrigerator
US8850842B2 (en) 2003-03-28 2014-10-07 Lg Electronics Inc. Refrigerator
JP2008057919A (en) * 2006-09-01 2008-03-13 Hitachi Appliances Inc Refrigerator
CN102331155A (en) * 2011-10-19 2012-01-25 合肥华凌股份有限公司 Refrigeration device and composite control device for same
CN105258446A (en) * 2015-11-05 2016-01-20 青岛海尔股份有限公司 Refrigerator control method and system with linear compressor

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