CN1993590A - Cooling box - Google Patents

Cooling box Download PDF

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Publication number
CN1993590A
CN1993590A CNA2005800256229A CN200580025622A CN1993590A CN 1993590 A CN1993590 A CN 1993590A CN A2005800256229 A CNA2005800256229 A CN A2005800256229A CN 200580025622 A CN200580025622 A CN 200580025622A CN 1993590 A CN1993590 A CN 1993590A
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CN
China
Prior art keywords
temperature
mentioned
stirling cooler
warm
situation
Prior art date
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Pending
Application number
CNA2005800256229A
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Chinese (zh)
Inventor
深谷瑞穗
陈炜
巽洋
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Sharp Corp
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Sharp Corp
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Publication of CN1993590A publication Critical patent/CN1993590A/en
Pending legal-status Critical Current

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    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
    • 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
    • F25D29/00—Arrangement or mounting of control or safety 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The controller (86) of a cooling box is arranged so that when the temperature (Th) of the warm head of a Stirling freezer (30) exceeds a reference temperature (Th1), it maximizes the speed of a heat radiation fan (53) and the output of a circulation pump (61) and minimizes the output of the Stirling freezer (30). If the temperature (Th) of the warm head exceeds a threshold temperature (Th2) even after this control, the Stirling freezer (30) is stopped. Therefore, as compared with the case of stopping the Stirling freezer (30) immediately after the temperature (Th) of the warm head has exceeded the threshold temperature (Th2), the reliabilityof the cooling box can be improved.

Description

Refrigerator
Technical field
The present invention relates to refrigerator, particularly possess the refrigerator of stirling cooler.
Background technology
In recent years, fluorine Lyons gas is pointed out that to the harmful effect of earth environment as the refrigerator that does not use fluorine Lyons gas, the refrigerator that is equipped with stirling cooler receives publicity.In this refrigerator, the cold head by stirling cooler cold and hot with space cooling in the case, and with the warm head of stirling cooler warm by radiator to case external environment heat radiation (for example opening the 2002-221384 communique) with reference to the spy.
Patent documentation 1: the spy opens the 2002-221384 communique
In such refrigerator, former thereby rise, reached under the situation of critical-temperature in the temperature of the warm head of stirling cooler because of certain, also consider to stop stirling cooler at once.But, in this control method, can stop the running of refrigerator suddenly, the reliability of infringement refrigerator.
Summary of the invention
Therefore, main purpose of the present invention provides the higher refrigerator of reliability.
Relevant refrigerator of the present invention is the refrigerator that possesses stirling cooler, possesses: temperature testing organization, the temperature of the warm head of detection stirling cooler; And controlling organization, the situation that has surpassed predefined fiducial temperature according to the detected temperatures of temperature testing organization is controlled, so that before stirling cooler is stopped, the temperature that suppresses warm head rises.
Preferably, also be provided with: radiator, be subjected to warmly via refrigerant from the warm head of stirling cooler, dispel the heat to the case external environment; And radiator fan, promote the heat radiation of radiator; Controlling organization makes the air quantity of radiator fan for maximum according to the situation that the detected temperatures of temperature testing organization has surpassed fiducial temperature, then, do not reduce the output of stirling cooler under the low situation than fiducial temperature even do not become in the detected temperatures of having passed through predefined time-temperature testing agency yet.
In addition, preferably, also possess the warm of warm head given the box outer wall face, prevented the refrigerant circulation circuit of dewfall via coolant transmission; Controlling organization makes the refrigerant circulation of refrigerant circulation circuit for maximum according to the situation that the detected temperatures of temperature testing organization has surpassed fiducial temperature, then, do not reduce the output of stirling cooler under the low situation than fiducial temperature even do not become in the detected temperatures of having passed through predefined time-temperature testing agency yet.
In addition, preferably, also possess: radiator, be subjected to warmly via refrigerant from the warm head of stirling cooler, dispel the heat to the case external environment; Radiator fan promotes the heat radiation of radiator; And refrigerant circulation circuit, give the box outer wall face with the warm of warm head via coolant transmission, prevent dewfall; Controlling organization makes the air quantity of radiator fan for maximum according to the situation that the detected temperatures of temperature testing organization has surpassed fiducial temperature, then, even the detected temperatures of having passed through predefined the 1st time-temperature testing agency do not become yet make refrigerant circulation circuit under the low situation than fiducial temperature refrigerant circulation for maximum, and then, do not reduce the output of stirling cooler under the low situation than fiducial temperature even do not become in the detected temperatures of having passed through predefined the 2nd time-temperature testing agency yet.
In addition, preferably, also possess: radiator, be subjected to warmly via refrigerant from the warm head of stirling cooler, dispel the heat to the case external environment; Radiator fan promotes the heat radiation of radiator; And refrigerant circulation circuit, give the box outer wall face with the warm of warm head via coolant transmission, prevent dewfall; Controlling organization makes the refrigerant circulation of refrigerant circulation circuit for maximum according to the situation that the detected temperatures of temperature testing organization has surpassed fiducial temperature, then, even the detected temperatures of having passed through predefined the 1st time-temperature testing agency do not become yet make radiator fan under the low situation than fiducial temperature air quantity for maximum, and then, do not reduce the output of stirling cooler under the low situation than fiducial temperature even do not become in the detected temperatures of having passed through predefined the 2nd time-temperature testing agency yet.
In addition, preferably, controlling organization reduces the output stage ground of stirling cooler according to the situation that the detected temperatures of temperature testing organization has surpassed fiducial temperature.
In addition, preferably, controlling organization stops the output of stirling cooler according to the situation that the detected temperatures of temperature testing organization has surpassed the predefined critical-temperature higher than fiducial temperature.
In addition, preferably, also be provided with situation that detected temperatures according to temperature testing organization surpassed fiducial temperature and check whether normal inspection body of temperature testing organization.
In relevant refrigerator of the present invention, the situation that has surpassed fiducial temperature according to the temperature of the warm head of stirling cooler is controlled, so that before stirling cooler is stopped, the temperature that suppresses warm head rises.Thereby, can prevent that refrigerator from stopping suddenly, can improve the reliability of refrigerator.
Preferably, the situation that has surpassed fiducial temperature according to warm temperature makes the air quantity of radiator fan for maximum, then, do not reduce the output of stirling cooler under the low situation than fiducial temperature even do not become in the temperature of having passed through warm head of predefined time yet.In the case, owing to can at first not improving the temperature that the temperature inside the box reduces warm head, so can improve the reliability of refrigerator.
In addition, preferably, surpassed refrigerant circulation that the situation of fiducial temperature makes refrigerant circulation circuit for maximum according to the temperature of warm head, then, do not reduced the output of stirling cooler under the low situation than fiducial temperature even also do not become in the temperature of having passed through warm head of predefined time.In the case, also owing to can at first not improving the temperature that the temperature inside the box reduces warm head, so can improve the reliability of refrigerator.
In addition, preferably, the situation that has surpassed fiducial temperature according to warm temperature makes the air quantity of radiator fan for maximum, then, do not make the refrigerant circulation of refrigerant circulation circuit for maximum than fiducial temperature under the low situation even do not become in the temperature of having passed through warm head of predefined the 1st time yet, and then, do not reduce the output of stirling cooler under the low situation than fiducial temperature even do not become in the temperature of having passed through warm head of predefined the 2nd time yet.In the case, also owing to can at first not improving the temperature that the temperature inside the box reduces warm head, so can improve the reliability of refrigerator.
In addition, preferably, the situation that has surpassed fiducial temperature according to warm temperature makes the refrigerant circulation of refrigerant circulation circuit for maximum, then, do not make the air quantity of radiator fan for maximum than fiducial temperature under the low situation even do not become in the temperature of having passed through warm head of predefined the 1st time yet, and then, do not reduce the output of stirling cooler under the low situation than fiducial temperature even do not become in the temperature of having passed through warm head of predefined the 2nd time yet.In the case, also owing to can at first not improving the temperature that the temperature inside the box reduces warm head, so can improve the reliability of refrigerator.
In addition, preferably, the output stage ground of stirling cooler is reduced.In the case, can suppress the rising of the temperature inside the box.
In addition, preferably, the situation that has surpassed the critical-temperature higher than fiducial temperature according to warm temperature stops the output of stirling cooler.In the case, can prevent the fault of stirling cooler.
In addition, preferably, also be provided with situation that detected temperatures according to temperature testing organization surpassed fiducial temperature and check whether normal inspection body of temperature testing organization.In the case, can prevent the misoperation of the refrigerator that the fault of temperature testing organization is brought.
Description of drawings
Fig. 1 is the cutaway view of structure of the refrigerator of expression one embodiment of the present invention.
Fig. 2 is the matched tube structure figure of refrigerator shown in Figure 1.
Fig. 3 is a block diagram of representing to control with the running of refrigerator shown in Figure 1 the structure of the part that is associated.
Fig. 4 is the part of flow chart of the action of expression control part shown in Figure 3.
Fig. 5 is another part of flow chart shown in Figure 4.
Description of reference numerals
1 refrigerator, 10 housings, 11,12,13 cooling chambers, 14,15,16 insulated doors, 17 liners, 18 shelves, 19 Machine Rooms, 20 pipelines, 21 cold air blow-off outlets, 22 cooling fans, 30 stirling coolers, 40 low temperature side refrigerant circulation circuit, 41 low temperature side condensers, 42 low temperature side evaporimeters, 50,60 high temperature side refrigerant circulation circuit, 51 high temperature side evaporimeters, 52 high temperature side condensers, 53 radiator fans, 61 circulating pumps, 62 anti-condensation portions, 70 electrothermal heaters, 80 the temperature inside the box sensors, 81 cold head temperature sensors, 82 a warm temperature sensor, 83 inspection portions, 84 a reference value storage parts, 85 warning lights, 86 control parts, 87 timers.
The specific embodiment
Fig. 1 is the cutaway view of structure of the refrigerator 1 of expression one embodiment of the present invention, and Fig. 2 is the matched tube structure figure of refrigerator 1.With reference to Fig. 1 and Fig. 2, refrigerator 1 is a food preservation usefulness, possesses the housing 10 of thermal insulation construction.In the inside of housing 10, be provided with three grades of cooling chambers 11,12,13 that ground is separated up and down.Cooling chamber 11,12,13 has peristome in the face side (being the left side in Fig. 1) of housing 10 respectively, and this peristome is by insulated door 14,15,16 sealings that open and close freely.At the back side of insulated door 14,15,16, the liner 17 of the shape of the peristome that surrounds cooling chamber 11,12,13 respectively is installed.In the inside of cooling chamber 11,12,13, suitably be provided with the shelf 18 of the kind that is suitable for the food taken in.
Above housing 10 to the back side, again to following, disposing with stirling cooler 30 is the cooling system and the cooling system of center key element.In addition, one of the back side jiao is provided with Machine Room 19 on housing 10, and stirling cooler 30 is arranged in this Machine Room 19.
The part of stirling cooler 30 forms cold head when driving.Low temperature side condenser 41 is installed on this cold head.In addition, in the depths of cooling chamber 13, be provided with low temperature side evaporimeter 42.Low temperature side condenser 41 and low temperature side evaporimeter 42 are connected via coolant piping, constitute low temperature side refrigerant circulation circuit 40 by both.In low temperature side refrigerant circulation circuit 40, enclose the natural refrigerant that CO2 is arranged, in low temperature side evaporimeter 42 and low temperature side condenser 41, carry out the exchange of heat.
In the inside of housing 10, be provided with and be used for the pipeline 20 that the cold air that will obtain by low temperature side evaporimeter 42 distributes to cooling chamber 11,12,13.Pipeline 20 has the cold air blow-off outlet 21 that is communicated with cooling chamber 11,12,13 at suitable position.In the inside of pipeline 20, be provided with at suitable position and be used for cooling fan 22 that cold air is sent forcibly.
In addition, though in this figure, do not illustrate, in housing 10 inside, also be provided with the pipeline that reclaims air from cooling chamber 11,12,13.This pipeline has blow-off outlet below low temperature side evaporimeter 42, the air that will cool off supplies in the low temperature side evaporimeter 42 shown in the dotted arrow of Fig. 1.
Another part of stirling cooler 30 forms warm head when driving.On this warm head, high temperature side evaporimeter 51 is installed.In addition, at the upper surface of housing 10, be provided with high temperature side condenser (radiator) 52 and the radiator fan 53 that dispel the heat to the case external environment.High temperature side evaporimeter 51 and high temperature side condenser 52 are connected via coolant piping, constitute high temperature side refrigerant circulation circuit 50 by both.Be sealed with the natural refrigerant of water (comprising the aqueous solution) or hydro carbons in high temperature side refrigerant circulation circuit 50, this refrigerant is Natural Circulation in high temperature side refrigerant circulation circuit 50.
On the other hand, high temperature side evaporimeter 51 also is connected with high temperature side refrigerant circulation circuit 60.High temperature side refrigerant circulation circuit 60 has the circulating pump 61 of refrigerant forced circulation and anti-condensation portion 62.Circulating pump 61 for example is a piezoelectric pump.Anti-condensation portion 62 is that the peristome that the part with coolant piping is withdrawn into cooling chamber 11,12,13 forms, be have by refrigerant warm will take place easily near the peristome of dewfall (the contact site periphery of liner 17 and housing 10, be in the case with the outer borderline region of case) heating prevents the parts of dewfall.In addition,, can not dispose on the anticipation dewfall happening part of high temperature side refrigerant circulation circuit 60, the electrothermal heater 70 that generates heat by energising is being installed for convenience on making etc.
Then, the action to the refrigerator 1 that is made of said structure describes.In the refrigerator 1 that is made of said structure, if drive stirling cooler 30, then the temperature of cold head reduces.Thereby low temperature side condenser 41 is cooled, and inner refrigerant is condensed.
The refrigerant of condensation flow in the low temperature side evaporimeter 42 by low temperature side refrigerant circulation circuit 40 in low temperature side condenser 41.The refrigerant that flow in the low temperature side evaporimeter 42 evaporates under the effect of the heat of the air-flow in the outside by low temperature side evaporimeter 42, and the surface temperature of low temperature side evaporimeter 42 is reduced.Thereby the air that passes low temperature side evaporimeter 42 becomes cold air, blows out to cooling chamber 11,12,13 from the cold air blow-off outlet 21 of pipeline 20, and the temperature of cooling chamber 11,12,13 is descended.Then, the air in the cooling chamber 11,12,13 is back in the low temperature side evaporimeter 42 by not shown pipeline.
In addition, the refrigerant of evaporation is got back in the low temperature side condenser 41 by low temperature side refrigerant circulation circuit 40 in low temperature side evaporimeter 42, hot there removed and condensation once more.Then repeat above-mentioned heat exchange action.
On the other hand, the heat of sending by the driving of stirling cooler 30 and be heat extraction and from warm head heat radiation by the hotwork that cold head reclaims in the case.Thereby high temperature side evaporimeter 51 is heated, inner refrigerant evaporation.
The refrigerant of the gas phase state of heating passes through high temperature side refrigerant circulation circuit 50 in high temperature side evaporimeter 51, and flow in the high temperature side condenser 52 that is located at the top.The refrigerant that flow in the high temperature side condenser 52 is taken away heat and condensation by the air-flow that imports to outside case by radiator fan 53 in the high temperature side condenser 52.In addition, the refrigerant of condensation is got back in the high temperature side evaporimeter 51 by high temperature side refrigerant circulation circuit 50 in high temperature side condenser 52, obtains heat there and evaporation once more.Then, repeat above-mentioned heat exchange action.
In addition, refrigerant in the saturated refrigerant, liquid phase state is recycled pump 61 forced circulation in high temperature side refrigerant circulation circuit 60 in the inside of high temperature side evaporimeter 51, imports to anti-condensation portion 62.Thereby, near the warm heating that refrigerant had that is imported into the peristome of cooling chamber 11,12,13.By making such structure, can not consume unwanted electric power and near the temperature that will take place easily the peristome of dewfall remains more than the dew-point temperature, prevent dewfall.In addition, the anticipation dewfall happening part for not disposing high temperature side refrigerant circulation circuit 60 by carrying out the energising to electrothermal heater 70, remains its temperature more than the dew-point temperature, can prevent dewfall.
Fig. 3 is the block diagram of the part that is associated with running control in the expression refrigerator 1.In Fig. 3, this refrigerator 1 possesses the temperature inside the box sensor 80, cold head temperature sensor 81, a warm temperature sensor 82, inspection portion 83, a reference value storage part 84, warning light 85 and control part 86, and control part 86 has timer 87.
The temperature inside the box sensor 80 for example is located on both allocations on case internal space side surface of pipeline 20, and the temperature in space in the detection case passes to control part 86 with the signal of expression detected value.Cold head temperature sensor 81 is located on the cold head of stirling cooler 30, detects the temperature of cold head, and the signal of representing detected value is passed to control part 86.Warm up a temperature sensor 82 and be located on the warm head of stirling cooler 30, detect the temperature T h of warm head, the signal of representing detected value is passed to control part 86.
Inspection portion 83 checks whether a warm temperature sensor 82 is normal, and the signal of representing check result is passed to control part 86.A reference value storage part 84 is made of read-only storages such as ROM, the critical-temperature Th2 of the fiducial temperature Th1 of the fiducial temperature of the fiducial temperature in space, cold head, warm head and warm head in the storage box.
Warning light 85 for example is located on the outer surface of insulated door 14, lights when refrigerator 1 fault, gives the user with the Trouble Report of refrigerator 1.Control part 86 is controlled stirling cooler 30, radiator fan 53, circulating pump 61 and warning light 85 according to the various information from temperature sensor 80～82, inspection portion 83 and a reference value storage part 84.
Fig. 4 and Fig. 5 are the flow charts of the action of expression control part 86.The output of control part 86 control stirling coolers 30 is so that the detected value of temperature sensor 80～82 becomes a reference value that is stored in a reference value storage part 84, and the rotating speed of control radiator fan 53 is an air quantity.In addition, the output of control part 86 control circulating pumps 61 is the internal circulating load of the refrigerant of high temperature side refrigerant circulation circuit 60.
In addition, whether control part 86 judges the temperature T h of warm head than the fiducial temperature Th1 height that is stored in a reference value storage part 84 in step S1, and execution in step S1 once more under the situation that is not Th＞Th1 advances to step S2 under the situation of Th＞Th1.In step S2, control part 86 makes inspection portion 83 check whether a warm temperature sensor 82 is normal.Inspection portion 83 checks whether a warm temperature sensor 82 is normal, and the signal of representing check result is passed to control part 86.
In step S3, whether not unusually control part 86 is judged a warm temperature sensor 82 according to the signal that comes self-check portion 83, handle for the equitemperature sensor abnormality report of lighting of in step S4, carrying out warning light 85 under the unusual situation at a warm temperature sensor 82, do not having to advance to step S5 under the unusual situation.
In step S5, control part 86 judges whether the rotating speed of radiator fan 53 is maximum, under the situation that is not maximum, in step S6, make the rotating speed of radiator fan 53 become maximum, in step S7, wait for through given time, advance to step S12, under the situation of rotating speed for maximum of radiator fan 53, advance to step S8.In the metering of given time, use timer 87.
In step S8, control part 86 judges whether the output of circulating pump 61 is maximum, under the situation that is not maximum, in step S9, make the output of circulating pump 61 become maximum, in step S10, wait for and advance to step S12 through given time, under the output of circulating pump 61 is maximum situation, in step S11, reduce the output of stirling cooler 30, advance to step S12.In step S11, control part 86 reduces the output of stirling cooler 30 several times interimly from the currency to the minimum of a value.
In step S12, whether the temperature T h that control part 86 is judged warm head under the situation that be not Th＞Th1 gets back to step S1 than the fiducial temperature Th1 height that is stored in a reference value storage part 84, advances to step S13 under the situation of Th＞Th1.In step S13, control part 86 judges whether the output of stirling cooler 30 is minimum, gets back to step S8 under the situation that is not minimum, advances to step S14 under the situation that is minimum.
In step S14, whether the temperature T h that control part 86 is judged warm head under the situation that be not Th＞Th2 gets back to step S8 than the critical-temperature Th2 height that is stored in a reference value storage part 84, advances to step S15 under the situation of Th＞Th2.
Control part 86 carries out a warm abnormal show such as lighting of warning light 85 and handles in step S15, stirling cooler 30 is stopped and getting back to step S1.
In this embodiment, surpassed at the temperature T h of warm head the rotating speed that makes radiator fan 53 under the situation of fiducial temperature Th1 for maximum, make circulating pump 61 be output as minimum, make stirling cooler 30 be output as minimum, if the temperature T h at warm like this head has still surpassed under the situation of critical-temperature Th2, stirling cooler 30 is stopped.Thereby, compare with the situation that stirling cooler 30 is stopped under the situation that has surpassed critical-temperature Th2 at the temperature T h that warms up head at once, can realize the raising of the reliability of refrigerator 1.
In addition, in this embodiment, after being maximum, the rotating speed that makes radiator fan 53 make circulating pump 61 be output as maximum, otherwise but, make radiator fan 53 be output as maximum after also can making circulating pump 61 be output as maximum.
All all are illustrations and should not regard restriction as in the embodiment disclosed herein.Scope of the present invention is not by above-mentioned explanation but represented by claims, means to comprise the meaning that is equal to claims and all changes in the scope.

Claims (6)

1. a refrigerator is the refrigerator that possesses stirling cooler (30), possesses:
Temperature testing organization (82) detects the temperature of the warm head of above-mentioned stirling cooler (30); And
Controlling organization (86), the situation that has surpassed predefined fiducial temperature (Th1) according to the detected temperatures (Th) of said temperature testing agency (82) is controlled, so that before above-mentioned stirling cooler (30) is stopped, the temperature that suppresses above-mentioned warm head rises.
2. refrigerator as claimed in claim 1 is characterized in that also possessing:
Radiator (42) is subjected to warmly via refrigerant from the warm head of above-mentioned stirling cooler (30), dispel the heat to the case external environment; And
Radiator fan (53) promotes the heat radiation of above-mentioned radiator (42);
Above-mentioned controlling organization (86) makes the air quantity of above-mentioned radiator fan (53) be maximum (S6) according to the situation that the detected temperatures (Th) of said temperature testing agency (82) has surpassed said reference temperature (Th1),
Then, even under the detected temperatures (Th) of having passed through predefined time said temperature testing agency (82) does not become than the low situation of said reference temperature (Th1) yet, reduce the output (S11) of above-mentioned stirling cooler (30).
3. refrigerator as claimed in claim 1 is characterized in that,
Also possess the warm of above-mentioned warm head given the box outer wall face, prevented the refrigerant circulation circuit (60) of dewfall via coolant transmission;
Above-mentioned controlling organization (86) makes the refrigerant circulation of above-mentioned refrigerant circulation circuit (60) be maximum (S9) according to the situation that the detected temperatures (Th) of said temperature testing agency (82) has surpassed said reference temperature (Th1),
Then, even under the detected temperatures (Th) of having passed through predefined time said temperature testing agency (82) does not become than the low situation of said reference temperature (Th1) yet, reduce the output (S11) of above-mentioned stirling cooler (30).
4. refrigerator as claimed in claim 1 is characterized in that also possessing:
Radiator (42) is subjected to warmly via refrigerant from the warm head of above-mentioned stirling cooler (30), dispel the heat to the case external environment;
Radiator fan (53) promotes the heat radiation of above-mentioned radiator (42); And
Refrigerant circulation circuit (60) is given the box outer wall face with the warm of above-mentioned warm head via coolant transmission, prevents dewfall;
Above-mentioned controlling organization (86) makes the air quantity of above-mentioned radiator fan (53) be maximum (S6) according to the situation that the detected temperatures (Th) of said temperature testing agency (82) has surpassed said reference temperature (Th1),
Then, even under the detected temperatures (Th) of having passed through predefined the 1st time said temperature testing agency (82) does not become than the low situation of said reference temperature (Th1) yet, make the refrigerant circulation of above-mentioned refrigerant circulation circuit (60) be maximum (S9),
And then, even under the detected temperatures (Th) of having passed through predefined the 2nd time said temperature testing agency (82) does not become than the low situation of said reference temperature (Th1) yet, reduce the output (S11) of above-mentioned stirling cooler (30).
5. refrigerator as claimed in claim 1 is characterized in that also possessing:
Radiator (42) is subjected to warmly via refrigerant from the warm head of above-mentioned stirling cooler (30), dispel the heat to the case external environment;
Radiator fan (53) promotes the heat radiation of above-mentioned radiator (42); And
Refrigerant circulation circuit (60) is given the box outer wall face with the warm of above-mentioned warm head via coolant transmission, prevents dewfall;
Above-mentioned controlling organization (86) makes the refrigerant circulation of above-mentioned refrigerant circulation circuit (60) be maximum (S9) according to the situation that the detected temperatures (Th) of said temperature testing agency (82) has surpassed said reference temperature (Th1),
Then, even under the detected temperatures (Th) of having passed through predefined the 1st time said temperature testing agency (82) does not become than the low situation of said reference temperature (Th1) yet, make the air quantity of above-mentioned radiator fan (53) be maximum (S6),
And then, even under the detected temperatures (Th) of having passed through predefined the 2nd time said temperature testing agency (82) does not become than the low situation of said reference temperature (Th1) yet, reduce the output (S11) of above-mentioned stirling cooler (30).
6. refrigerator as claimed in claim 1 is characterized in that, above-mentioned controlling organization (86) makes the output stage ground of above-mentioned stirling cooler (30) reduce (S11).
CNA2005800256229A 2004-07-29 2005-07-07 Cooling box Pending CN1993590A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP221611/2004 2004-07-29
JP2004221611A JP3796505B2 (en) 2004-07-29 2004-07-29 Refrigerator

Publications (1)

Publication Number Publication Date
CN1993590A true CN1993590A (en) 2007-07-04

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Application Number Title Priority Date Filing Date
CNA2005800256229A Pending CN1993590A (en) 2004-07-29 2005-07-07 Cooling box

Country Status (6)

Country Link
US (1) US20070245747A1 (en)
EP (1) EP1780483A1 (en)
JP (1) JP3796505B2 (en)
KR (1) KR20070042561A (en)
CN (1) CN1993590A (en)
WO (1) WO2006011344A1 (en)

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CN115218602A (en) * 2022-06-27 2022-10-21 青岛海尔生物医疗股份有限公司 Method and device for controlling temperature of refrigerator, refrigerator and storage medium

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US20070245747A1 (en) 2007-10-25

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