CN101120215A - Cooling shed - Google Patents

Cooling shed Download PDF

Info

Publication number
CN101120215A
CN101120215A CNA2005800481566A CN200580048156A CN101120215A CN 101120215 A CN101120215 A CN 101120215A CN A2005800481566 A CNA2005800481566 A CN A2005800481566A CN 200580048156 A CN200580048156 A CN 200580048156A CN 101120215 A CN101120215 A CN 101120215A
Authority
CN
China
Prior art keywords
mentioned
temperature
stirling refrigeration
cold
refrigeration engine
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
Application number
CNA2005800481566A
Other languages
Chinese (zh)
Inventor
宫本聪
巽洋
陈伟
深谷瑞穗
宫上顺二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2005040640A external-priority patent/JP3935912B2/en
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of CN101120215A publication Critical patent/CN101120215A/en
Pending legal-status Critical Current

Links

Images

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0682—Two or more fans
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
    • F25D2323/00265—Details for cooling refrigerating machinery characterised by the incoming air flow through the front top part
    • 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
    • F25D2700/02—Sensors detecting door opening
    • 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
    • F25D2700/10—Sensors measuring the temperature of the evaporator

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

A refrigerator so designed that its inside is cooled by a Stirling refrigerating engine, comprising a state detection means (S01) detecting the supercooling critical state of the Stirling refrigerating engine and a supercooling prevention means (S02) preventing the Stirling refrigerating engine from being supercooled based on the detection of the supercooling critical state by the state detection means. Thus, the Stirling refrigerating engine can be prevented from being supercooled.

Description

Cooler bin
Technical field
The present invention relates to cooler bin, particularly by the cooler bin in the stirling refrigeration engine cool case.
Background technology
In recent years, point out the harmful effect of fluorine Lyons gas to earth environment, as the cooler bin that does not use fluorine Lyons gas, the cooler bin that is equipped with the stirling refrigeration engine is subjected to people and pays close attention to.In this cooler bin, the low-temperature heat quantity of the cold head of stirling refrigeration engine is delivered to the low temperature side evaporimeter via secondary refrigerant, to in cooler bin, (for example, open 2002-221384 communique (patent documentation 1)) at the cool-air feed that the low temperature side evaporimeter generates with reference to the spy.
Patent documentation 1: the spy opens the 2002-221384 communique
But, in existing refrigeration machine, when the cooling capacity of stirling refrigeration engine is big, exist secondary refrigerant to freeze, the low-temperature heat quantity of the cold head of stirling refrigeration engine can not be delivered in the low temperature side evaporimeter, can't cool off the problem in the cooler bin.
In addition, the stirling refrigeration engine has cold head can't improve output when high temperature characteristic.Therefore, cold head is under the situation of high temperature when being desirably in the power connection of cooler bin for example, when switching freezing operation mode apace etc., apace in the cooler bin.
Summary of the invention
The present invention puts in view of the above problems and proposes, and one of purpose of the present invention is to provide a kind of cooler bin, can prevent the supercooling of stirling refrigeration engine before the supercooling of stirling refrigeration engine.
Other purposes of the present invention are to provide a kind of cooler bin that improves the efficient in the cooler bin.
To achieve these goals, according to a scheme of the present invention, cooler bin is by the cooler bin in the stirling refrigeration engine cool case, has the state-detection portion of the supercooling precarious position that detects the stirling refrigeration engine and prevents that according to the detection of the supercooling precarious position of being undertaken by state-detection portion the overcooled supercooling of stirling refrigeration engine from preventing portion.
According to this invention, provide a kind of and can before the supercooling of stirling refrigeration engine, avoid the overcooled cooler bin of stirling refrigeration engine.
Preferably, also have the open and-shut mode that detects the door on the cooling chamber be arranged on cooler bin door state-detection portion, will be by cooling fan in the case of the cool-air feed of stirling refrigeration engine cool, the cooling fan control part that during being open mode, makes cooling fan stop by door state-detection portion detecting gate, state-detection portion detect by door state-detection portion detect the state of opening passed through given time.
According to the present invention, but the state of opening of detecting gate has passed through given time.Cooling fan since door be open mode during stop, so during this period the air of low temperature side cooler periphery is stagnated.Therefore, if continue to drive the then temperature reduction of secondary refrigerant of stirling refrigeration engine.Therefore, can detect secondary refrigerant chill point state before according to the time that cooling fan stops.
Preferably, cooler bin comprises the 1st cooling chamber and the 2nd cooling chamber of being separated and having respectively shutter door by insulation, cooling fan will be by 1 cooling chamber of the cool-air feed to the after the stirling refrigeration engine cool, also has the air-supply path that is used for the cold air by the stirling refrigeration engine cool is imported the 2nd cooling chamber, be arranged on the air-supply path and cut off obstruct section by the cold air of stirling refrigeration engine cool, with will deliver to the Air Blast fan of air-supply in the path by the cold air of stirling refrigeration engine cool, supercooling prevent portion detect by door state-detection portion the 1st cooling chamber the door the state that closes and the 2nd cooling chamber the door open state the time, make obstruct section partition air-supply path and stopping of cooling fan of releasing and make its driving, the door of the state of opening of the door that detects the 1st cooling chamber by door state-detection portion and the 2nd cooling chamber close state the time, remove obstruct section to the partition of air-supply path and drive Air Blast fan.
According to the present invention, detect the 1st cooling chamber the door the state that closes and the 2nd cooling chamber the door open state the time, cut off the air-supply path and drive cooling fan, the door of the state of opening of the door that detects the 1st cooling chamber and the 2nd cooling chamber close state the time remove the partition of air-supply path and drive Air Blast fan.Therefore, when the door of the 2nd cooling chamber is opened under the door closing state of the 1st cooling chamber, air by the stirling refrigeration engine cool supplies in the 1st cooling chamber, when the door of the 1st cooling chamber is opened under the door closing state of the 2nd cooling chamber, will supply to the 2nd cooling chamber by the air of stirling refrigeration engine cool.Under any one situation about opening of the 1st and the 2nd, all can make cross-ventilation, so can prevent the supercooling of stirling refrigeration engine by the stirling refrigeration engine cool.In addition, be sent to the interior cold air of cooling chamber that door is opened, so can prevent that the interior cold air of case is to external leaks owing to can reduce.
Preferably, cooler bin also has from being formed on low-temp. portion on the stirling refrigeration engine and accepts the low temperature side evaporimeter of low-temperature heat quantity via secondary refrigerant.State-detection portion comprise detect low-temp. portion, low temperature side evaporimeter or and the temperature detecting part of the temperature of the paired low temperature side condenser (the secondary refrigerant closed circuit that makes secondary refrigerant between low temperature side evaporimeter and low temperature side condenser, circulate) of low temperature side evaporimeter, detect the temperature that detects by temperature detecting part and be lower than both fixed temperatures.
According to the present invention, the temperature that detects low-temp. portion, secondary refrigerant closed circuit (being low temperature side evaporimeter or low temperature side condenser typically) is lower than both fixed temperatures.Therefore, can detect the stirling refrigeration engine is supercooling.
Preferably, freeze the portion that prevents and make stopping before the control that it stops controlling the stirling refrigeration engine, carry out as preventing control with the overcooled supercooling of stirling refrigeration engine that prevents that stops to control different control.
According to the present invention, carry out before stopping of making that the stirling refrigeration engine stops controlled in order to prevent the supercooling of stirling refrigeration engine and stop to control different supercooling and prevent control, prevent the supercooling of stirling refrigeration engine thus.Therefore, can prevent that control from preventing under the overcooled situation of stirling refrigeration engine, there is no need to carry out the control that stops of stirling refrigeration engine by supercooling.Its result can make the stirling refrigeration engine not stop as far as possible.Thus, can improve the reliability of cooler bin.
Preferably, both fixed temperature comprise the Bystryn freeze high the 1st temperature of the overcooled temperature of engine and Bystryn freeze the overcooled temperature of engine high and than the 1st temperature low the 2nd temperature, supercooling prevents portion, carry out supercooling when being lower than the 1st temperature and prevent control detecting by state-detection portion, and then, stop control when being lower than the 2nd temperature detecting by state-detection portion.
According to the present invention, at first, carry out supercooling when the Bystryn is freezed high the 1st temperature of the overcooled temperature of engine and prevent control being lower than, and then, be lower than higher and stop to control during low the 2nd temperature than the 1st temperature than overcooled temperature at the stirling refrigeration engine.Therefore, prevent the supercooling of stirling refrigeration engine and can not be lower than under the situation of the 2nd temperature can preventing to control, there is no need to carry out the control that stops of stirling refrigeration engine by supercooling.Its result, can try one's best does not stop the stirling refrigeration engine.
Preferably, also have the temperature abnormality detection test section, by the temperature detecting part detected temperatures time, detect unusual based on the detection of the temperature of temperature detecting part.
According to the present invention since when temperature detection the detection of detected temperatures unusual, survey so can prevent the flase drop of temperature.Therefore, can avoid that fixed temperature makes the stirling refrigeration engine stop in order both to be lower than owing to flase drop is surveyed.
Preferably, also have by the cool-air feed of the low temperature side evaporator cools cooling fan in the case, supercooling prevents portion, drives cooling fan or increases the air quantity of cooling fan.
According to the present invention, drive the air quantity of cooling fan or increase cooling fan, so the cross-ventilation of low temperature side evaporimeter periphery.Therefore, the air of sending into again in the low temperature side evaporimeter provides heat to secondary refrigerant, so the temperature of secondary refrigerant rises.Its result can prevent the supercooling of stirling refrigeration engine.In addition, since in the case air by cooling fan and convection current, so can be by the stirling refrigeration engine air in the cooler bin effectively.Its result can improve the COP (Coefficient Of Performance, achievement coefficient) of stirling refrigeration engine.
Preferably, supercooling prevents that portion from detecting the air quantity that drives cooling fan when being lower than the 1st temperature or increase cooling fan by state-detection portion, and then, after after the air quantity that drives cooling fan or increase cooling fan, passing through given time, detecting when being lower than the 1st temperature control stirling refrigeration engine and make cooling capacity reduce by state-detection portion.
According to the present invention, although providing heat to secondary refrigerant, the temperature of secondary refrigerant does not rise, and is lower than under the situation of the 1st temperature, is controlled to be the cooling capacity that makes the stirling refrigeration engine and reduces.Therefore, owing to suppress the cooling of secondary refrigerant, the temperature of secondary refrigerant rises.Its result can prevent the supercooling of stirling refrigeration engine.
Preferably, the supercooling portion of preventing has the rotating speed control part of control speed of cooling fan, supercooling prevents portion, detecting by state-detection portion when being lower than the 1st temperature, make that speed of cooling fan is that the maximum limit of rotatory power drives cooling fan, and then, make speed of cooling fan be after the maximum limit of the rotatory power of cooling fan drives through detecting when being lower than the 1st temperature by state-detection portion behind the given time, control stirling refrigeration engine and make cooling capacity reduce.
According to the present invention, speed of cooling fan is that the maximum limit of rotatory power drives owing to making, and is not that the situation of maximum limit is compared with rotating speed, more can prevent the supercooling of stirling refrigeration engine.In addition, because rotating speed is a maximum limit and make the further convection current of air in the case by cooling fan by making, so can improve the COP of stirling refrigeration engine more.
In addition, although providing heat to secondary refrigerant, the temperature of secondary refrigerant does not rise and is lower than under the situation of the 1st temperature, is controlled to be the cooling capacity that makes the stirling refrigeration engine and reduces.Therefore, owing to suppress the cooling of secondary refrigerant, the temperature of secondary refrigerant rises.Its result can prevent the supercooling of stirling refrigeration engine.This freezes to prevent to control preferably to carry out under the state that closes of door.Driving cooling fan under the state of opening of door or making under the situation that the air quantity of cooling fan increases, air in the case is to external leaks, afterwards, and after door becomes closed condition, for the air in the case is cooled off once more, so need to improve the cooling capacity of stirling refrigeration engine.
Description of drawings
Fig. 1 is the summary cutaway view of an embodiment of expression cooler bin of the present invention.
Fig. 2 is the figure that flows of cold air that schematically represents the cooler bin of present embodiment.
Fig. 3 is the functional block diagram that freezes to prevent function of the cooler bin of expression the 1st embodiment.
Fig. 4 is illustrated in the flow chart that freezing of carrying out in the cooler bin of the 1st embodiment prevents the flow process handled.
Fig. 5 be illustrated in the distortion carried out in the cooler bin of the 1st embodiment the flow chart that freezes to prevent the flow process handled.
Fig. 6 is the functional block diagram that freezes to prevent function of the cooler bin of expression the 2nd embodiment.
Fig. 7 is illustrated in the flow chart that freezing of carrying out in the cooler bin of the 2nd embodiment prevents the flow process handled.
Fig. 8 be illustrated in the distortion carried out in the cooler bin of the 2nd embodiment the flow chart that freezes to prevent the flow process handled.
Fig. 9 is the functional block diagram that freezes to prevent function of the cooler bin of expression the 3rd embodiment.
Figure 10 is illustrated in the flow chart that freezing of carrying out in the cooler bin of the 3rd embodiment prevents the flow process handled.
Description of reference numerals
1 cooler bin
2 cooling fans
10 housings
11 the 2nd cooling chambers
12 the 1st cooling chambers
14 upper portion door
15 lower gate
17 seals
18 shelves
19 Machine Rooms
20,21 passages
20A, 20B cold air blow-off outlet
22 cooling fans
30 stirling refrigeration engines
40 low temperature side closed circuits
41 low temperature side condensers
42 low temperature side evaporimeters
50 high temperature side natural convection loops
51 high temperature side evaporimeters
52 high temperature side condensers
61 baffle plates
62 Air Blast fans
81 temperature sensors
82 upper portion door open and close sense switch
83 lower gate open and close sense switch
84 switching sense switches
90 control parts
91 display parts
The specific embodiment
Below, with reference to the description of drawings embodiments of the present invention.In the following description, for the identical identical Reference numeral of parts mark.Their title and function are also identical.Therefore, they are not repeated detailed explanation.
(the 1st embodiment)
Fig. 1 is the summary cutaway view of an embodiment of expression cooler bin of the present invention.Fig. 2 is the figure that flows of cold air that schematically represents the cooler bin of present embodiment.With reference to Fig. 1 and Fig. 2, cooler bin 1 is used to preserve food, has the housing 10 of adiabatic structure.In the inside of housing 10, setting is divided into two- layer cooling chamber 11,12 up and down.Cooling chamber 11,12 has peristome in the face side (left side among Fig. 1) of housing 10 respectively, and this peristome is closed by the upper portion door 14 and the lower gate 15 that open and close freely.Upper portion door 14 and lower gate 15 comprise insulation, and the seal 17 of the shape of the peristome that surrounds cooling chamber 11,12 respectively is installed at its back side.In the inside of cooling chamber 11,12, the shelf 18 of the kind of the food that is fit to take in is set aptly.
, be configured to stirling refrigeration engine 30 and be the cooling system and the cooling system of center key element to the back side and then to lower surface from the upper surface of housing 10.In addition, one of the back side jiao of place is provided with Machine Room 19 on housing 10, and stirling refrigeration engine 30 is arranged in this Machine Room 19.
The part of stirling refrigeration engine 30 forms low-temp. portion (hereinafter referred to as cold head) when driving.On this cold head, low temperature side condenser 41 is installed.In addition, in the inside of cooling chamber 12, configuration low temperature side evaporimeter 42.Low temperature side condenser 41 and low temperature side evaporimeter 42 are connected via refrigerant piping, constitute low temperature side closed circuit (secondary refrigerant closed circuit) 40 by the two.In low temperature side closed circuit 40, enclosing has CO 2Deng the nature cold-producing medium, between low temperature side evaporimeter 42 and low temperature side condenser 41, carry out the acceptance that provides of heat.
In the inside of housing 10, the cold air that is provided for being obtained by low temperature side evaporimeter 42 is assigned to the passage 20,21 in the cooling chamber 11,12.Passage 20 has the cold air blow-off outlet 20A that is communicated with cooling chamber (the 1st cooling chamber) 12 in position.In passage 20, cooling fan 22 is set in position.Cooling fan 22 passes out to cooling chamber 12 forcibly with the cold air in the passage 20.In addition, if drive cooling fan 22, then make the cross-ventilation of low temperature side evaporimeter 42 peripheries.Thus, in low temperature side evaporimeter 42, supplying temperature is than the air of higher other.
Passage 21 has the cold air blow-off outlet 21A that is communicated with cooling chamber (the 2nd cooling chamber) 11 in position.In passage 21, Air Blast fan 62 is set in position.Air Blast fan 62 is blown to passage 21, and the cold air in the passage 21 is passed out in the cooling chamber 11 forcibly.In addition, on an end of low temperature side evaporimeter 42 sides of passage 21, switching baffle plate 61 freely is set.When baffle plate 61 was closed condition, passage 21 separated with passage 20.Therefore, the Quilt with air conditioning baffle plate 61 in the passage 20 cuts off, and hinders it to move in passage 21.For under the state of opening, passage 21 and passage 20 are communicated with at baffle plate 61.Therefore, if drive Air Blast fan 62 under the state that baffle plate 61 is opened, then in the cold air flow channel 21 in the passage 20, this Quilt with air conditioning is sent in the cooling chamber 11 forcibly.
In addition, under the state that baffle plate 61 is opened, can drive Air Blast fan 62 and do not drive cooling fan 22.Under this state, the cold air in the passage 20 also in the flow channel 21, is sent into this cold air in the cooling chamber 11 forcibly.In addition, if drive Air Blast fan 62, then make the cross-ventilation of low temperature side evaporimeter 42 peripheries.Thus, in low temperature side evaporimeter 42, supplying temperature is than the air of higher other.
And then, under the state that baffle plate 61 is opened, can drive cooling fan 22 and Air Blast fan 62.Under this state, the cold air in the passage 20 has the part of sending into cooling chamber 12 by cooling fan 22, and the part of sending into cooling chamber 11 by Air Blast fan 62 via passage 21 is also arranged.Under this situation, also make the cross-ventilation of low temperature side evaporimeter 42 peripheries, in low temperature side evaporimeter 42, supplying temperature is than the air of higher other.
In addition, this figure is diagram not, but in the inside of housing 10 passage that reclaims air from cooling chamber 11,12 is set also.This passage has blow-off outlet below low temperature side evaporimeter 42, the air that should cool off supplies to low temperature side evaporimeter 42 like that shown in the dotted arrow of Fig. 1.
The part of other of stirling refrigeration engine 30 forms heat head (high-temperature portion) when driving.On this heat head, high temperature side evaporimeter 51 is installed.In addition, on the upper surface of housing 10, the high temperature side condenser 52 and the Air Blast fan 53 that dispel the heat to the case external environment are set.High temperature side evaporimeter 51 and high temperature side condenser 52 are connected via refrigerant piping, constitute high temperature side natural convection loop 50 by the two.In high temperature side natural convection loop 50, the natural cold-producing medium of sealing entry (comprising the aqueous solution) or hydro carbons, this cold-producing medium is Natural Circulation in high temperature side natural convection loop 50.
Then, the action to the cooler bin 1 that is made of said structure describes.In the cooler bin 1 of above-mentioned formation, if drive stirling refrigeration engine 30, then the temperature of cold head reduces.Therefore, low temperature side condenser 41 is cooled, inner secondary refrigerant (following omission and be called cold-producing medium) condensation.
Condensed refrigerant flows into low temperature side evaporimeter 42 by low temperature side closed circuit 40 in low temperature side condenser 41.The cold-producing medium that flows into low temperature side evaporimeter 42 evaporates by 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 descends.Therefore, the air that passes low temperature side evaporimeter 42 becomes cold air, is blown out to the cooling chamber 11 from the cold air blow-off outlet 20A of passage 20, in addition, is blown out to the cold air blow-off outlet 21A of passage 21.Thus, the temperature of cooling chamber 11,12 descends.Afterwards, the air in the cooling chamber 11,12 is back in the low temperature side evaporimeter 42 by not shown passage.
In addition, the cold-producing medium of evaporation is got back to low temperature side condenser 41 by low temperature side closed circuit 40 in low temperature side evaporimeter 42, is pulled away and condensation once more at this place's heat.Then, carry out above-mentioned heat exchange action repeatedly.
On the other hand, heat that generates heat by the driving of stirling refrigeration engine 30 and the heat that reclaims in the case by cold head are as heat extraction and from the heat radiation of heat head.Therefore, high temperature side evaporimeter 51 is heated, inner cold-producing medium evaporation.
The cold-producing medium of the gas phase state of heating flows into high temperature side condenser 52 above being arranged on by high temperature side natural convection loop 50 in high temperature side evaporimeter 51.The cold-producing medium that flows into high temperature side condenser 52 is taken away heat and condensation by the air-flow that is imported in the high temperature side condenser 52 by Air Blast fan 53 outside case.In addition, condensed refrigerant is got back to high temperature side evaporimeter 51 by high temperature side natural convection loop 50 in high temperature side condenser 52, is heated at this place and evaporation once more.Then, carry out above-mentioned heat exchange action repeatedly.
Fig. 3 is the functional block diagram that freezes to prevent function of the cooler bin of expression the 1st embodiment.With reference to Fig. 3, cooler bin 1 has the control part 90 and the temperature sensor 81 that is connected thereon of the integral body that is used to control cooler bin.Control part 90 is connected with stirling refrigeration engine 30, cooling fan 22, baffle plate 61, Air Blast fan 62.
Temperature sensor 81, the temperature of detection low temperature side evaporimeter 42 or low temperature side closed circuit (being the cold head of low temperature side condenser 41 or stirling refrigeration engine 30) with representing.In the present embodiment, though also can directly detect the temperature of the cold-producing medium in the low temperature side closed circuit 40, replace and directly detect and the temperature of the cold head of detection low temperature side evaporimeter 42, low temperature side condenser 41 or stirling refrigeration engine 30.Therefore, temperature sensor 81 can detect any one temperature of the cold head of low temperature side evaporimeter 42, low temperature side condenser 41 and stirling refrigeration engine 30, but is preferably the temperature of low temperature side condenser 41, and then the temperature of preferred cold head.
Control part 90 drives control stirling refrigeration engine 30.The stirling refrigeration engine can change its load and drives.The stirling refrigeration engine is the cooling capacity height under the big driving of load, and cooling capacity is low under the little driving of load.Control part 90, the air quantity of control cooling fan 22 and Air Blast fan 62.In addition, the driving of also changeable control cooling fan 22 of control part 90 and Air Blast fan 62 or stop.And then control part 90 carries out the switching of the open mode and the closed condition of baffle plate 61.
Fig. 4 represents to carry out in the cooler bin of the 1st embodiment freezes to prevent the flow chart of the flow process handled.With reference to Fig. 4, the control part 90 of cooler bin 1, input has the temperature from the cold head of the stirling refrigeration engine 30 of temperature sensor 81.Control part 90 judges whether the temperature of cold head is lower than set temperature T (step S01).Entering step S02 under the genuine situation, end process under the situation that is vacation.Set value T is according to the freezing point predetermined value of the cold-producing medium in the low temperature side closed circuit 40, is set at the temperature higher about 3 ℃ than the setting temperature of cold-producing medium.The temperature of cold-producing medium, not necessarily the temperature with cold head is consistent, but can not be lower than the temperature of cold head.Under the situation of the temperature difference D of the temperature of the temperature of knowing cold-producing medium and cold head, both fixed temperature was above the getting final product of value that the freezing point of cold-producing medium deducts temperature difference D.
In addition, temperature sensor 81, under the situation of the temperature that detects low temperature side evaporimeter 42 or low temperature side condenser 41, the temperature of low temperature side evaporimeter 42 or the low temperature side condenser 41 not necessarily temperature with cold-producing medium is consistent, but the temperature of cold-producing medium can not be higher than the temperature of low temperature side evaporimeter 42 or low temperature side condenser 41.Under the situation of the temperature difference D1 of the temperature of the temperature of the temperature of the temperature of knowing cold-producing medium and low temperature side evaporimeter 42 or cold-producing medium and low temperature side condenser 41, both fixed temperature was above the getting final product of value that adds temperature difference D on the freezing point of cold-producing medium.
In step S02, make the stirling refrigeration engine stop.Thus, cold-producing medium is not cooled, and can not freeze.
In addition, in step S02, make the stirling refrigeration engine stop, but also can make the stirling refrigeration engine drive with less load.Under this situation, cold-producing medium is cooled, but if drive with the load of temperature maintenance about this temperature with cold-producing medium, can prevent freezing of cold-producing medium.
(freeze prevent handle variation)
Fig. 5 be in the cooler bin of expression the 1st embodiment the distortion carried out the flow chart that freezes to prevent the flow process handled.With reference to Fig. 5, the control part 90 of cooler bin 1, input has the temperature from the cold head of the stirling refrigeration engine 30 of temperature sensor 81.Control part 90 judges whether the temperature of cold head is lower than set temperature T (step S11).Enter step S12 under the genuine situation, under for false situation, entering step S20.
In step S12, judge whether cooling fan 22 stops.Under the situation that cooling fan 22 stops, entering step S13, under situation about not stopping, entering step S14.In step S13, drive cooling fan 22.If drive cooling fan 22, the cross-ventilation of the periphery of low temperature side evaporimeter 42 then, to low temperature side evaporimeter 42 supplying temperatures than higher air.So, hinder the temperature of cold-producing medium to reduce.On the other hand, under the situation that enters step S14,, drive so increase the air quantity of cooling fan owing to driven cooling fan 22.Thus, the air convection current more intensely of low temperature side evaporimeter 42 peripheries hinders the reduction of the temperature of cold-producing medium.
In step S15, judged whether to pass through the set time.Enter step S16 under the genuine situation, under for false situation, getting back to step S11.In step S16, judge whether Air Blast fan 62 stops.Under the situation that Air Blast fan 62 stops, entering step S17, under situation about not stopping, entering step S19.In step S17, under opening the state of baffle plate, drive Air Blast fan 62 among below the step S18.If drive Air Blast fan 62, the cross-ventilation of low temperature side evaporimeter 42 peripheries then, supplying temperature is than higher air in low temperature side evaporimeter 42.Therefore, further hinder the temperature of cold-producing medium to reduce.On the other hand, when entering step S19,, drive so increase the air quantity of Air Blast fan owing to driven Air Blast fan 62.Thus, the air convection current more intensely of low temperature side evaporimeter 42 peripheries hinders the temperature of cold-producing medium to reduce.
After step S18 or step S19, handle and get back to step S11.In step S11, judge once more whether the temperature of cold head is lower than set temperature T.Enter step S20 under the situation of set temperature T being not less than, enter step S12 under the situation of set temperature T being lower than.That is, before the temperature of cold head equates with set temperature T or surpasses set temperature T, carry out the processing of above-mentioned steps S12 to step S19.In step S20, cooling fan 22, baffle plate 61 and Air Blast fan 62 drive under normal operation mode.
Like this, in the variation of the 1st embodiment, drive cooling fan or cooling fan and Air Blast fan the two.Therefore, make the cross-ventilation of low temperature side evaporimeter 42 peripheries, can hinder the temperature of cold-producing medium to reduce.And, can prevent that cold-producing medium from freezing.
In addition, also can carry out following two kinds of controls together, that is: make above-mentioned stirling refrigeration engine 30 stop or making cooling capacity reduce and the control that drives; With the control that makes cooling fan or cooling fan and the two driving of Air Blast fan.Thus, can prevent that more cold-producing medium from freezing.
More than the cooler bin 1 of Shuo Ming the 1st embodiment if the temperature of the cold head of low temperature side evaporimeter 42, low temperature side condenser 41 or stirling refrigeration engine 30 is lower than set temperature T, then reduces the cooling capacity of stirling refrigeration engine, or makes it stop.Therefore, suppress the cooling of cold-producing medium, can prevent freezing of cold-producing medium.
In addition, if the temperature of the cold head of low temperature side evaporimeter 42, low temperature side condenser 41 or stirling refrigeration engine 30 is lower than set temperature T, then drive cooling fan 22, perhaps increase air quantity, so make the cross-ventilation of the periphery of low temperature side evaporimeter 42, can prevent that cold-producing medium from freezing.
In addition, in the 1st embodiment, for example, set temperature T is the temperature higher about 3 ℃ than the freezing point of cold-producing medium.But, as long as set temperature T is the temperature that the temperature higher than the freezing point of cold-producing medium also can be other certainly.
Under this situation, temperature by a low side in the temperature range that makes the cold-producing medium of obtaining under rated condition when stirling refrigeration engine 30 turns round is set temperature T, can prevent that the temperature of cold-producing medium from becoming below the temperature range of the cold-producing medium of obtaining under the specified running of stirling refrigeration engine 30.
Thus, can the cold-producing medium supercooling can not prevent the cold head supercooling owing to the running of stirling refrigeration engine 30, become overload state so can prevent stirling refrigeration engine 30 from surpassing rated condition.Its result can prevent the deterioration of stirling refrigeration engine 30.
(the 2nd embodiment)
Then, the cooler bin to the 2nd embodiment describes.The cooler bin of the 2nd embodiment except compare with the cooler bin of the 1st embodiment freeze to prevent that function is different, structure is identical.Below, to the 2nd embodiment freeze prevent that function from describing.
Fig. 6 is the functional block diagram that freezes to prevent function of the cooler bin of expression the 2nd embodiment.With reference to Fig. 6, cooler bin 1 have the integral body that is used to control cooler bin control part 90, connect that thereon upper portion door opens and closes sense switch 82 and lower gate opens and closes sense switch 83.Control part 90 is connected with stirling refrigeration engine 30, cooling fan 22, baffle plate 61, Air Blast fan 62.
State of opening that upper portion door switching sense switch 82 detection upper portion door 14 are opened or the state that closes of closing.State of opening that lower gate switching sense switch 83 detection lower gate 15 are opened or the state that closes of closing.
Fig. 7 is the flow chart that freezes to prevent the flow process handled that carries out in the cooler bin of expression the 2nd embodiment.With reference to Fig. 7, the control part 90 of cooler bin 1 opens and closes sense switch 83 and the open and-shut mode of input upper portion door 14 and lower gate 15 by upper portion door switching sense switch 82 or lower gate.Control part 90 is judged some open modes (step S22) that whether becomes of upper portion door 14 and lower gate 15.Some in upper portion door 14 and lower gate 15 for entering step S22 under the situation of open mode, not then end process.
In step S22, make cooling fan 22 stop.Thus, can prevent that door from flowing out to the outside forcibly for the cold air in the cooling chamber 11,12 of open mode.Then, in step S23, judge whether through given time.This elapsed time can be from the some time that picks up counting during for open mode of detecting upper portion door 14 or lower gate 15 among step S21, or from any one of time of picking up counting after cooling fan stops.Under the situation of having passed through given time, enter step S24, do not getting back to step S21 through under the situation of given time.By making cooling fan stop, the not convection current of air of low temperature side evaporimeter 42 peripheries.Thus, the temperature of cold-producing medium reduces.Given time is to begin to reduce up to the short time of the time that arrives freezing point than the temperature from cold-producing medium.Given time can be the predetermined single time, also can be at the load of stirling refrigeration engine and the predetermined time.And then, also can be at the load of the temperature inside the box and stirling refrigeration engine and the predetermined time.
In following step S24, make the stirling refrigeration engine stop.Thus, cold-producing medium can not be cooled, and can prevent freezing of cold-producing medium.
In addition, in step S24, make the stirling refrigeration engine stop, but also can make the stirling refrigeration engine drive with less load.Under this situation, cold-producing medium is cooled, but if drive with the load of the degree of its temperature of temperature maintenance of cold-producing medium, can prevent that then cold-producing medium from freezing.
(freeze prevent handle the 1st variation)
Fig. 8 be in the cooler bin of expression the 2nd embodiment the distortion carried out the flow chart that freezes to prevent the flow process handled.With reference to Fig. 8, control part 90 judges whether upper portion door 14 is open mode (step S31).Do not enter step S32 during for open mode in upper portion door 14, not then enter step S38.
In step S32, make Air Blast fan 62 stop, in step S33, make cooling fan 22 stop.Thus, even if upper portion door 14 flows out to the outside forcibly for open mode also can prevent the cold air in the cooling chamber 11.Then, judge whether to have passed through given time (step S34).Do not entering step S35 when the given time, not then get back to step S31.That is, if upper portion door 14 then enters step S35 for open mode and through given time, if, then enter step S38 becoming closed condition through upper portion door 14 before the given time.In step S33 by making cooling fan 22 stop, the not convection current of air of low temperature side evaporimeter 42 peripheries.Thus, the temperature of cold-producing medium reduces.Keep this state if stop cooling fan 22, then the temperature of cold-producing medium reduces and the arrival freezing point.Therefore, given time is the short time of time that arrives freezing point than the temperature of cold-producing medium.Given time can be the predetermined single time, also can be at the load of stirling refrigeration engine and the predetermined time.And then, also can be at the load of the temperature inside the box and stirling refrigeration engine and the predetermined time.
In step S35, make baffle plate 61 be closed condition, in step S36, drive cooling fan 22.Thus, the cold air of low temperature side evaporimeter 42 peripheries is sent in the cooling chamber 12, so but since baffle plate 61 be not sent in the cooling chamber 11 for closed condition.Therefore, the cross-ventilation of low temperature side evaporimeter 42 peripheries is to the higher air of low temperature side evaporimeter 42 supplying temperatures.And, hinder the reduction of the temperature of cold-producing medium.Its result can prevent that cold-producing medium from freezing.In addition, because the cold air of low temperature side evaporimeter 42 peripheries is not sent in the cooling chamber 11, flow out from the upper portion door of opening forcibly so can prevent the cold air in the cooling chamber 11.
In step S37, judge whether upper portion door 14 is closed condition.Do not enter step S38 in upper portion door 14 under the situation of closed condition, not then get back to step S35.Before upper portion door 14 becomes closed condition, the cold air of low temperature side evaporimeter 42 peripheries is sent into cooling chamber 12, prevent that thus cold-producing medium from freezing.
In step S38, under normal operation mode, drive cooling fan 22, baffle plate 61 and Air Blast fan 62.
In following step S39, control part 90 judges whether lower gate 15 is open mode.Do not enter step S40 in lower gate 15 under the situation of open mode, not then end process.
In step S40, make Air Blast fan 62 stop, in step S41, making cooling fan 22 stop.Thus, even if lower gate 15 flows out to the outside forcibly for open mode also can prevent the cold air in the cooling chamber 12.In addition, the not convection current of air of low temperature side evaporimeter 42 peripheries.Then, judge whether to have passed through given time (step S42).Do not entering step S43 when the given time, not then get back to step S39.That is,, becoming closed condition as if lower gate 15 before the process given time, then end process if lower gate 15 then enters step S43 for open mode and with this state through given time.Given time is the identical time with the given time of step S34.
In step S43, make baffle plate 61 be open mode, in step S44, drive cooling fan 22.Thus, the cold air of low temperature side evaporimeter 42 peripheries is sent in the cooling chamber 11, but is not sent in the cooling chamber 12.Therefore, the cross-ventilation of low temperature side evaporimeter 42 peripheries is to the higher air of low temperature side evaporimeter 42 supplying temperatures.Therefore, hinder the reduction of the temperature of cold-producing medium.Its result can prevent that cold-producing medium from freezing.In addition, because the amount that the cold air of low temperature side evaporimeter 42 peripheries is sent in the cooling chamber 12 is few, so the cold air that can reduce in the cooling chamber 12 flows out from the lower gate of opening forcibly.
In step S45, judge whether lower gate 15 is closed condition.Do not enter step S46 in lower gate 15 under the situation of closed condition, not then get back to step S43.Therefore, before lower gate 15 becomes closed condition, the cold air of low temperature side evaporimeter 42 peripheries is sent into cooling chamber 11, prevent that thus cold-producing medium from freezing.
In step S46, under normal operation mode, drive cooling fan 22, baffle plate 61 and Air Blast fan 62.
The cooler bin 1 of the 2nd embodiment if some state continuance given times of opening of upper portion door 14 or lower gate 15 then make the cooling capacity of stirling refrigeration engine reduce, perhaps makes it stop.Therefore, can suppress the cooling of cold-producing medium, prevent that cold-producing medium from freezing.
In addition, if some state continuance given times of opening of upper portion door 14 or lower gate 15 then drive cooling fan 22 or make air quantity increase,, can prevent that cold-producing medium from freezing so make the cross-ventilation of low temperature side evaporimeter 42 peripheries.
And then, if lower gate 15 open the state continuance given time, then make baffle plate 61 for closed condition and drive cooling fan 22, if the opening the state continuance given time and can make baffle plate 61 for open mode and drive Air Blast fan 62 of upper portion door.So, under some situations about opening of upper portion door 14 and lower gate 15, can prevent that all cold-producing medium from freezing, and can prevent that the interior cold air of case is to external leaks.
The present application, since when frozen food rapidly by maximum ice crystallization generating zone (3 ℃～-7 ℃), so the snap frozen that makes the cold air of low temperature side evaporimeter 42 peripheries drive cooling fan 22 after being ultralow temperature making cooling fan 22 stop also to have use value in turning round.
In addition, in the 2nd embodiment, be under the situation of open mode in upper portion door 14 or lower gate 15, in order to prevent the outflow of cold air, make cooling fan 22 stop, and making stirling refrigeration engine 30 stop through behind the given time.
But, be not limited to this, when upper portion door 14 or lower gate 15 are open mode, also can make cooling fan 22 stop and making stirling refrigeration engine 30 stop.During the control that sharply descends in the temperature that makes the cold head of stirling refrigeration engine 30 in order to prevent temperature in cooler bin 1 from rising, the freezing accident of cold-producing medium takes place owing to the control lag of the control that makes stirling refrigeration engine 30 stop sometimes.
Therefore, even if when the door of cooler bin 1 is open mode, be not used to prevent the control that the temperature of the cold head that makes stirling refrigeration engine 30 that the temperature of cooler bin 1 rises reduces yet and make stirling refrigeration engine 30 stop, so can prevent freezing of cold-producing medium.
In addition, in the 2nd embodiment, when upper portion door 14 or lower gate 15 are open mode, make cooling fan 22 stop, and making stirling refrigeration engine 30 stop through after the given time.
But, be not limited to this, can be under the situation of open mode also in upper portion door 14 or lower gate 15, make cooling fan 22 stop, when the temperature of the cold head of stirling refrigeration engine 30 both drops to fixed temperature, make stirling refrigeration engine 30 stop.
Thus, can prevent that temperature owing to the cold head of stirling refrigeration engine 30 from reducing causes freezing of cold-producing medium.In addition, becoming open mode from door in the time that makes stirling refrigeration engine 30 stop, also can making input electric power reduce interimly to stirling refrigeration engine 30.Thus, promptly side door is under the situation of open mode, also can suppress can prevent freezing of cold-producing medium simultaneously because the temperature in the cooler bin 1 that the outflow of cold air causes rises.
In addition, when upper portion door 14 or lower gate 15 are open mode, after making stirling refrigeration engine 30 stop, be under the situation of closed condition in upper portion door 14 and lower gate 15, (for example, after 5 seconds) make 30 runnings of stirling refrigeration engine behind preferred horse back or the process given time.Thus, can cool off temperature in the cooler bin 1 that rises owing to the cold air that flows out fast.
In addition, when upper portion door 14 or lower gate 15 are open mode, after stopping stirling refrigeration engine 30, when the temperature of the cold head of stirling refrigeration engine 30 both rises to fixed temperature, preferably make 30 runnings of stirling refrigeration engine.Thus, can prevent that the temperature in the cooler bin 1 from crossing rising.
In addition, in the 2nd embodiment, when upper portion door 14 or lower gate 15 are open mode, make cooling fan 22 stop.But, be not limited to this, also can make cooling fan 22 rotate with the slow-speed of revolution.Thus, from transmitting heat to cold-producing medium,, can prevent freezing of cold-producing medium so the temperature of cold-producing medium slowly rises than the air in the high cooler bin 1 of the temperature of cold-producing medium.
In addition, in the 2nd embodiment, when upper portion door 14 or lower gate 15 are open mode, make stirling refrigeration engine 30 stop.But, be not limited to this, also can reduce input electric power to stirling refrigeration engine 30.Thus, because the heat of taking away from cold-producing medium reduces,, can prevent freezing of cold-producing medium so the temperature of cold-producing medium rises.
In addition, in the 2nd embodiment, given time is than from making cooling fan 22 stop to arrive short time of time of freezing point to the temperature of cold-producing medium.But, being not limited to this, given time also can be to stop to arrive the both time of fixed temperature to the temperature of cold-producing medium from cooling fan 22.Both fixed temperature so long as the temperature higher than the freezing point of cold-producing medium get final product.
Thus, the temperature that can prevent cold-producing medium arrives both fixed temperatures.Therefore, temperature by the low side in the temperature range of the cold-producing medium obtained under the specified running of stirling refrigeration engine 30 of order is both fixed temperatures, can prevent that the temperature of cold-producing medium from becoming below the temperature range of the cold-producing medium of obtaining under the specified running of stirling refrigeration engine 30.
Thus, can the cold-producing medium supercooling can not prevent the cold head supercooling owing to the running of stirling refrigeration engine 30, become overload state so can prevent stirling refrigeration engine 30 from surpassing rated condition.Its result can prevent the deterioration of stirling refrigeration engine 30.
(the 3rd embodiment)
Then, the cooler bin to the 3rd embodiment describes.The cooler bin of the 3rd embodiment except compare with the cooler bin of the 1st embodiment freeze to prevent that function is different, structure is identical.Below, to the 3rd embodiment freeze prevent that function from describing.
Fig. 9 is the functional block diagram that freezes to prevent function of the cooler bin of expression the 3rd embodiment.With reference to Fig. 9, cooler bin 1 has the control part 90 of the integral body that is used to control cooler bin 1 and is connected that thereon temperature sensor 81, upper portion door opens and closes sense switch 82 and lower gate opens and closes sense switch 83.Control part 90 is connected with stirling refrigeration engine 30, cooling fan 22, baffle plate 61, Air Blast fan 62, display part 91.
Display part 91 shows the information relevant with the operational situation of cooler bin.For example, display part 91 shows that there is unusual indication in stirling refrigeration engines 30, exists unusual indication, upper portion door 14 or lower gate 15 to be the indication of open mode, indication in normal operation in temperature sensor 81.In addition, also can be corresponding with the demonstration in the display part 91 and by sound send report unusual.
Figure 10 is the flow chart that freezes to prevent the flow process handled that carries out in the cooler bin of expression the 3rd embodiment.With reference to Figure 10, whether the control part 90 of cooler bin 1 exists unusual in the detected temperatures sensor 81.Control part 90 judges whether the thermistor of temperature sensor 81 exists (step S71) unusually.Exist at thermistor to enter step S72 under the unusual situation, do not have to enter under the unusual situation step S74 at thermistor.In step S72, show that in display part 91 there is unusual indication in thermistor.Then, make stirling refrigeration engine 30 stop (step S73).Afterwards, end process.
Like this, exist under the unusual situation,, all make stirling refrigeration engine 30 stop regardless of the temperature of cold-producing medium at thermistor.Thus, because not by the 30 cooling refrigeration agent of stirling refrigeration engine, so can prevent that cold-producing medium from freezing.In addition, can prevent because the misoperation of thermistor and in S83 described later, detect than the low temperature of actual temperature and in S86, make stirling refrigeration device 30 unexpectedly stop.In addition, can though prevent because the misoperation of thermistor and in S83 described later, detect than the high temperature of actual temperature and arrive the temperature that cold-producing medium freezes and cold-producing medium freezes, but stirling refrigeration engine 30 non-stop situations.
In addition, in the control part 90 of cooler bin 1, input is from the temperature of the cold head of the stirling refrigeration engine 30 of temperature sensor 81.Control part 90 judges whether the temperature of cold head is lower than temperature T 1(step S74).Be lower than temperature T 1The time enter step S75, be not less than temperature T 1The time get back to step S71.Temperature T 1It is for example high about 3 ℃ temperature than the setting temperature of cold-producing medium.
On the control part 90 of cooler bin 1, open and close the open and-shut mode of sense switch 82 or lower gate switching sense switch 83 input upper portion door 14 and lower gate 15 from upper portion door.Control part 90 judge upper portion door 14 and lower gate 15 any one whether be open mode (step S75).Do not enter step S76 during for open mode at upper portion door 14 and lower gate 15 some, not then enter step S77.
In step S76, control part 90 reports upper portion door 14 by display part 91 or lower gate 15 is the warning of the indication of open mode.Afterwards, get back to step S71.
In step S77, judge whether the rotating speed of cooling fan 22 is the maximum permissible speed of cooling fan 22.Under the situation that is not maximum permissible speed, enter step S78, under the situation of maximum permissible speed, enter step S81.
In step S78, the rotating speed that makes cooling fan 22 is the maximum permissible speed of cooling fan 22.Thus, be discontented with the situation of maximum permissible speed with the rotating speed of cooling fan 22 and compare, the air convection current more intensely of low temperature side evaporimeter 42 peripheries can suppress the reduction of the temperature of cold-producing medium.Then, the rotating speed of judging cooling fan 22 begins whether to pass through given time (step S79) from becoming maximum permissible speed.Not carrying out step S79 repeatedly, under the situation of having passed through given time, enter step S82 through under the situation of given time.
This given time, when the rotating speed of the seasonal cooling fan 22 that runs well was maximum permissible speed, the temperature that is preferably cold-producing medium ascending temperature sensor 81 at least can detect temperature that temperature rises more than the needed time.For example, when the temperature detection error of temperature sensor 81 was ± 0.5 ℃, the time of rising at least more than 1 ℃ of needed time with the temperature at cold-producing medium was that given time gets final product.
In addition, this given time, when the rotating speed of cooling fan 22 was maximum permissible speed when unusual running, the temperature that is preferably discontented cold head was from temperature T 1Drop to temperature T described later 2Time.
In step S81, both quantitative to the input electric power minimizing of stirling refrigeration engine 30.Thus, the cooling capacity of stirling refrigeration engine 30 reduces.Therefore, can reduce the heat of taking away from cold-producing medium, the temperature that can suppress cold-producing medium reduces.
In step S82, control part 90 judges once more whether the temperature of cold head is lower than temperature T 1Be not less than temperature T 1The time enter step S83, be lower than temperature T 1The time enter step S84.
That is, when entering step S83, be maximum permissible speed, or in step S81, reduce input electric power that the temperature that can make cold head is from than temperature T to stirling refrigeration engine 30 by the rotating speed that in step S78, makes cooling fan 22 1Low exceptional value is got back to and is not less than temperature T 1Normal value.When entering step S84, the temperature of cold head is an exceptional value.
In step S83, the operation mode of stirling refrigeration engine 30, cooling fan 22, baffle plate 61 and Air Blast fan 62 is switched to the normal operation pattern.Afterwards, get back to step S71.
In step S84, control part 90 judges whether the temperature of cold head is lower than temperature T 2Be not less than temperature T 2The time, get back to step S81, be lower than temperature T 2The time, enter step S85.Temperature T 2For example be the temperature higher about 1 ℃ than the setting temperature of cold-producing medium.
In step S85, control part 90 shows the unusual of stirling refrigeration engine 30 by display part 91.And in step S86, control part 90 makes stirling refrigeration engine 30 stop.Afterwards, end process.
In addition, in the present embodiment, the rotating speed of cooling fan 22 is a maximum permissible speed in step S78, but also can make the rotating speed of cooling fan 22 increase interimly.And the temperature of cold head becomes temperature T through given time the time 1Under the above situation, get back to normal running.
Thus, before the rotating speed of cooling fan 22 arrives maximum permissible speed, become temperature T in the temperature of cold head 1When above, need not unnecessarily to increase the rotating speed of cooling fan 22, can suppress the consumption of electric power.In addition, because the variations in temperature of cold-producing medium is mild, so compare the temperature that to control cold-producing medium more accurately with the violent situation of the variations in temperature of cold-producing medium.
In the mode in the case that uses refrigerant cools cooler bin 1, cold-producing medium has the possibility of freezing.If continue the running of stirling refrigeration engine 30 under the state that cold-producing medium freezes, the temperature that then produces cold head sharply descends and the possibility of stirling refrigeration engine 30 faults.
Therefore, need stop near the seasonal stirling refrigeration engine 30 of the solidification point of cold-producing medium in the temperature of the low temperature side closed circuit 40 that detects stirling refrigeration engine 30 and the temperature of low temperature side closed circuit 40.But, under the situation that makes stirling refrigeration engine 30 stop suddenly, damage greatly as the reliability of the commodity in the cooler bin 1 and not preferred.
As mentioned above, the cooler bin 1 of the 3rd embodiment, carried out before stopping of making that stirling refrigeration engine 30 stops controlled in order to prevent cold-producing medium from freezing and stop to control that different being used to prevent that cold-producing medium from freezing freezes to prevent control, for example the rotating speed of cooling fan 22 is made as the control of maximum permissible speed or reduces control, prevent that thus cold-producing medium from freezing the input electric power of stirling refrigeration engine 30.
Therefore, can prevent to control under the situation about freezing that prevents cold-producing medium by freezing, there is no need to carry out the control that stops of stirling refrigeration engine 30.Its result, can try one's best does not make stirling refrigeration engine 30 stop.Thus, can improve the reliability of the commodity of cooler bin.
In addition, by temperature sensor 81 detected temperatures the time, the detection of the unusual equitemperature of the thermistor of test example such as temperature sensor 81 unusual can prevent that the flase drop of the temperature of temperature sensor 81 from surveying.Therefore, can prevent to be lower than temperature T owing to measuring at step 884 flase drop 2And in step S86, make stirling refrigeration engine 30 stop.
In addition, be lower than the high temperature T of freezing than cold-producing medium of temperature 1The time, freeze to prevent control, and then, be lower than than the temperature T that is higher than the temperature that cold-producing medium freezes 1Also low temperature T 2The time, carry out the control that stops of stirling refrigeration engine 30.Therefore, can be not less than temperature T by freezing to prevent control 2When preventing the freezing of cold-producing medium, there is no need to carry out the control that stops of stirling refrigeration engine 30.Its result, can try one's best does not make stirling refrigeration engine 30 stop.
In addition, because the increase of the air quantity of cooling fan 22, so the cross-ventilation of low temperature side evaporimeter 42 peripheries.Therefore, the air of newly sending into to low temperature side evaporimeter 42 conducts heat to cold-producing medium, so the temperature of cold-producing medium rises.Its result can prevent that cold-producing medium from freezing.
In addition, because by cooling fan 22 and the cross-ventilation in the case, so can be by low temperature side evaporimeter 42 air in the cooler bin efficiently.Its result can improve the COP (Coefficient Of Performance, achievement coefficient) of stirling refrigeration engine 30.
At this, COP represents the heating or the cooling capacity of heater or cooling device unit power consumption separately, the calculating recently of heat by offering non-heating thing or the heat taken away from non-heating thing and the heat scaled value that is used for the input energy that this heating or cooling consume.In the present embodiment, cooling device is a cooler bin 1, and non-cooling thing is by the air in the cooler bin 1 that is cooled by the cold-producing medium of the cold head of stirling refrigeration engine 30 cooling.In addition, be Q with the heat that seizes from non-cooling thing OUT, be Q with the heat scaled value that drops into energy INThe time, COP passes through COP=Q OUT/ Q INThe formula value of trying to achieve.
That is, because by by the cold-producing medium of stirling refrigeration engine 30 cooling and from by cooling fan 22 and the air of convection current is taken away heat efficiently, so, with respect to the heat scaled value Q of the electric power that drops into INThe heat Q that takes away from air OUTIncrease, COP increases.
In addition, even if providing heat by take away heat from air to cold-producing medium, the temperature of cold-producing medium does not rise yet and is lower than temperature T 1Situation under, be controlled to be the cooling capacity that makes stirling refrigeration engine 30 and reduce, promptly reduce the input electric power that drops into to stirling refrigeration engine 30.
Therefore, owing to the cooling that has suppressed based on the cold-producing medium of stirling refrigeration engine 30, so the temperature of cold-producing medium rises.Its result can prevent freezing of cold-producing medium.
In addition, owing to the rotating speed of cooling fan 22 is that the maximum permissible speed of cooling fan 22 drives,, can prevent that more cold-producing medium from freezing so compare with the situation that is not maximum permissible speed.In addition, by being maximum permissible speed, the air in the case is by cooling fan 22 and further convection current, so can improve the COP of stirling refrigeration engine 30 more.
In addition, even if provide heat at the air quantity that increases cooling fan 22 and to cold-producing medium, the temperature of cold-producing medium does not rise yet and is lower than temperature T 1The time, be controlled to be the input electric power that reduces stirling refrigeration engine 30.Therefore, can suppress the cooling of cold-producing medium, so the temperature of cold-producing medium rises.Its result can prevent that cold-producing medium from freezing.
In addition, owing to before cold-producing medium freezes, exist unusually in the stirling refrigeration engine 30, so report the indication that cold-producing medium freezes, so can urge a switching to wait the emergency processing of freezing corresponding to cold-producing medium.
In addition, in the 3rd embodiment, temperature T 1Be for example high about 3 ℃ temperature than the freezing point of cold-producing medium, temperature T 2Be the temperature higher about 1 ℃ than the freezing point of cold-producing medium.But, as long as T 1, T 2Be the temperature higher than the freezing point of cold-producing medium, and T 1＞T 2, certain temperature that also can be other.
At this moment, the temperature of hanging down a side in the temperature range of the cold-producing medium obtained when stirling refrigeration engine 30 turn round under rated condition of order is set temperature T 2, be the low temperature of temperature, with than temperature T than a side high in the said temperature scope 2The temperature in high several years is T 1, thus, can prevent that the temperature of cold-producing medium from becoming below the temperature range of the cold-producing medium of obtaining under the specified running of stirling refrigeration engine 30.
Thus, cold-producing medium can supercooling can not prevent the cold head supercooling owing to the running of stirling refrigeration engine 30, becomes overload state so can prevent stirling refrigeration engine 30 from surpassing rated condition.Its result can prevent stirling refrigeration engine 30 deteriorations.
In the 1st embodiment to the 3 embodiments, cooler bin 1 is illustrated, but as the control program of the control method of the cooler bin 1 of carrying out Fig. 4, Fig. 5, Fig. 7, Fig. 8 and processing shown in Figure 10 or stirling refrigeration engine 30, the cooler bin 1 of carrying out Fig. 4, Fig. 5, Fig. 7, Fig. 8 and processing shown in Figure 10 or stirling refrigeration engine 30 and be arranged on stirling refrigeration engine 30 in the cooler bin 1, can use the present invention.
The present invention is had been described in detail, but this only is an illustration, does not limit that the spirit and scope of invention it should be clearly understood that to only being defined by the claims.

Claims (10)

1. a cooler bin is by the cooler bin (1) in stirling refrigeration engine (30) cooler bin, it is characterized in that,
Have: detect the supercooling precarious position of above-mentioned stirling refrigeration engine state detection mechanism (81, S01, S11, S21, S31, S37, S39, S45, S74, S75, S82, S84),
With based on the detection of the above-mentioned supercooling precarious position of being undertaken and prevent that the overcooled supercooling of above-mentioned stirling refrigeration engine from preventing locking mechanism (S02) by above-mentioned state detection mechanism.
2. cooler bin as claimed in claim 1 is characterized in that,
Also have: detect the open and-shut mode of the door (14,15) on the cooling chamber (11,12) be arranged on above-mentioned cooler bin a state detection mechanism (82,83),
Will by cooling fan (22) in the case of the cool-air feed of above-mentioned stirling refrigeration engine cool,
Detecting the cooling fan controlling organization (S22) that door makes above-mentioned cooling fan stop during for open mode by above-mentioned door state detection mechanism,
The state of opening that above-mentioned state detection mechanism detects the door that is detected by above-mentioned door state detection mechanism has passed through given time (S23).
3. cooler bin as claimed in claim 2 is characterized in that,
Above-mentioned cooler bin comprises the 1st cooling chamber (12) and the 2nd cooling chamber (11) of being separated and having respectively shutter door by insulation,
Above-mentioned cooling fan will be by the cool-air feed after the above-mentioned stirling refrigeration engine cool to above-mentioned the 1st cooling chamber,
Also have be used for the cold air by above-mentioned stirling refrigeration engine cool import to above-mentioned the 2nd cooling chamber air-supply path (20,21,21A),
Be arranged on the above-mentioned air-supply path and be used to cut off by the separating mechanism (61) of the cold air of above-mentioned stirling refrigeration engine cool,
With will deliver to Air Blast fan (62) in the above-mentioned air-supply path by the cold air of above-mentioned stirling refrigeration engine cool,
The anti-locking mechanism of above-mentioned supercooling the door of the state that closes of the door that detects above-mentioned the 1st cooling chamber by above-mentioned door state detection mechanism and above-mentioned the 2nd cooling chamber open state the time (S31), make above-mentioned separating mechanism cut off air-supply path (S35) and remove stopping of above-mentioned cooling fan and make its driving (S36), the door of the state of opening of the door that detects above-mentioned the 1st cooling chamber by above-mentioned door state detection mechanism and above-mentioned the 2nd cooling chamber close state the time (S39), remove above-mentioned separating mechanism to the partition (S43) of above-mentioned air-supply path and drive above-mentioned Air Blast fan (S44).
4. cooler bin as claimed in claim 1 is characterized in that,
Also have from being formed on low-temp. portion on the above-mentioned stirling refrigeration engine and accept the low temperature side evaporimeter (42) of low-temperature heat quantity via secondary refrigerant,
Above-mentioned state detection mechanism comprise detect above-mentioned low-temp. portion, above-mentioned low temperature side evaporimeter or with the temperature testing organization (81) of the temperature of the paired low temperature side condenser (41) of above-mentioned low temperature side evaporimeter, detect the temperature that detects by said temperature testing agency and be lower than both situations of fixed temperature (S01, S11, S74, S82, S84).
5. cooler bin as claimed in claim 4 is characterized in that,
What the anti-locking mechanism of above-mentioned supercooling made controlling above-mentioned stirling refrigeration engine that it stops stopping control (S24, S86) before, carries out as preventing control (S22, S78, S81) with the above-mentioned overcooled supercooling of above-mentioned stirling refrigeration engine that prevents that stops to control different control.
6. cooler bin as claimed in claim 5 is characterized in that,
Above-mentioned both fixed temperatures comprise the 1st temperature (T higher than the overcooled temperature of above-mentioned stirling refrigeration engine 1) and than overcooled temperature height of above-mentioned stirling refrigeration engine and the 2nd temperature (T lower than above-mentioned the 1st temperature 2),
Locking mechanism is prevented in above-mentioned supercooling, carry out above-mentioned supercooling when being lower than above-mentioned the 1st temperature and prevent control detecting by above-mentioned state detection mechanism, and then, carry out the above-mentioned control that stops when being lower than above-mentioned the 2nd temperature detecting by above-mentioned refrigerant condition testing agency.
7. cooler bin as claimed in claim 4 is characterized in that,
Also have temperature abnormality detection testing agency (81), by said temperature testing agency detected temperatures the time, detect unusual based on the detection of the temperature of said temperature testing agency.
8. cooler bin as claimed in claim 4 is characterized in that,
Also have by the cool-air feed of the above-mentioned low temperature side evaporator cools cooling fan (22) in the case,
Locking mechanism is prevented in above-mentioned supercooling, drives above-mentioned cooling fan (S13, S36), perhaps increases the air quantity (S14, S78) of above-mentioned cooling fan.
9. cooler bin as claimed in claim 8 is characterized in that,
The anti-locking mechanism of above-mentioned supercooling is detecting the air quantity (S78) that (S74) when being lower than above-mentioned the 1st temperature drives above-mentioned cooling fan or increase above-mentioned cooling fan by above-mentioned state detection mechanism, and then, after after driving above-mentioned cooling fan or increasing the air quantity of above-mentioned cooling fan, passing through given time (S79), detecting (S82) when being lower than above-mentioned the 1st temperature by above-mentioned state detection mechanism, controlling above-mentioned stirling refrigeration engine and make cooling capacity reduce (S81).
10. cooler bin as claimed in claim 8 is characterized in that,
The rotating speed controlling organization (90) that the anti-locking mechanism of above-mentioned supercooling has the above-mentioned speed of cooling fan of control,
Locking mechanism is prevented in above-mentioned supercooling, detecting by above-mentioned state detection mechanism when being lower than above-mentioned the 1st temperature, make that above-mentioned speed of cooling fan is that the maximum limit of rotatory power drives above-mentioned cooling fan (S78), and then, above-mentioned speed of cooling fan is to detect (S82) when being lower than above-mentioned the 1st temperature through (S79) behind the given time by above-mentioned state detection mechanism after maximum limit drives making, and controls above-mentioned stirling refrigeration engine and makes cooling capacity reduce (S81).
CNA2005800481566A 2005-02-17 2005-09-14 Cooling shed Pending CN101120215A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005040640A JP3935912B2 (en) 2004-03-31 2005-02-17 Refrigerator
JP040640/2005 2005-02-17

Publications (1)

Publication Number Publication Date
CN101120215A true CN101120215A (en) 2008-02-06

Family

ID=36916254

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2005800481566A Pending CN101120215A (en) 2005-02-17 2005-09-14 Cooling shed

Country Status (5)

Country Link
US (1) US20080155994A1 (en)
EP (1) EP1852665A1 (en)
KR (1) KR20070103504A (en)
CN (1) CN101120215A (en)
WO (1) WO2006087840A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106839578A (en) * 2017-03-07 2017-06-13 宁波华斯特林电机制造有限公司 A kind of family expenses fast freezing case
CN108800713A (en) * 2018-05-09 2018-11-13 上海理工大学 Using the multi-temperature zone wind cooling refrigerator and temperature control method of sterlin refrigerator

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0620977D0 (en) * 2006-10-21 2006-11-29 Acton Elizabeth Controlled rate freezing equipment
US9010145B2 (en) * 2009-06-01 2015-04-21 Samsung Electronics Co., Ltd. Refrigerator
CN102997546A (en) * 2011-09-19 2013-03-27 博西华电器（江苏）有限公司 Household refrigerator
US9434474B2 (en) * 2012-11-16 2016-09-06 B/E Aerospace, Inc. Aircraft galley cart door interlock
EP2762796A1 (en) * 2013-02-04 2014-08-06 ABB Oy Cooling assembly
US9733008B2 (en) * 2013-03-13 2017-08-15 Whirlpool Corporation Air flow design for controlling temperature in a refrigerator compartment
KR101977204B1 (en) * 2013-06-10 2019-05-10 주식회사 대유위니아 Method for refrigerant control of refrigerator
ITTO20131095A1 (en) * 2013-12-31 2015-07-01 Indesit Co Spa METHOD AND DEVICE FOR CHECKING A DEEP FREEZING PHASE IN A REFRIGERATOR OF THE COMBINED SINGLE-ADJUSTMENT TYPE, AND ITS REFRIGERATOR APPARATUS
ITTO20131094A1 (en) * 2013-12-31 2015-07-01 Indesit Co Spa METHOD AND DEVICE FOR CHECKING A DEEP FREEZING PHASE IN A REFRIGERATOR OF THE COMBINED SINGLE-ADJUSTMENT TYPE, AND ITS REFRIGERATOR APPARATUS
ITTO20131093A1 (en) * 2013-12-31 2015-07-01 Indesit Co Spa METHOD AND DEVICE FOR CHECKING A DEEP FREEZING PHASE IN A REFRIGERATOR OF THE COMBINED SINGLE-ADJUSTMENT TYPE, AND ITS REFRIGERATOR APPARATUS
US10126024B1 (en) * 2014-09-26 2018-11-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Cryogenic heat transfer system
DE102015007359A1 (en) * 2014-10-29 2016-05-04 Liebherr-Hausgeräte Ochsenhausen GmbH Fridge and / or freezer
KR20170128958A (en) * 2016-05-16 2017-11-24 엘지전자 주식회사 Laundry Treating Apparatus
EP3450888B1 (en) * 2017-08-28 2020-10-07 Liebherr-Hausgeräte Lienz GmbH Cabinet for storing wine with two compartments
CN115218602B (en) * 2022-06-27 2023-08-11 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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292813A (en) * 1979-03-08 1981-10-06 Whirlpool Corporation Adaptive temperature control system
US4481787A (en) * 1982-07-16 1984-11-13 Whirlpool Corporation Sequentially controlled single evaporator refrigerator
US5355686A (en) * 1993-08-11 1994-10-18 Micro Weiss Electronics, Inc. Dual temperature control of refrigerator-freezer
JPH09236369A (en) * 1996-02-26 1997-09-09 Matsushita Refrig Co Ltd Refrigerator
JP3369967B2 (en) * 1998-07-03 2003-01-20 三洋電機株式会社 Stirling cooling device
US6272867B1 (en) * 1999-09-22 2001-08-14 The Coca-Cola Company Apparatus using stirling cooler system and methods of use
CN1232791C (en) * 2000-08-22 2005-12-21 夏普公司 Stirling refrigerator
JP4070499B2 (en) * 2002-04-19 2008-04-02 シャープ株式会社 Operation method of Stirling cooling device and Stirling refrigerator using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106839578A (en) * 2017-03-07 2017-06-13 宁波华斯特林电机制造有限公司 A kind of family expenses fast freezing case
CN108800713A (en) * 2018-05-09 2018-11-13 上海理工大学 Using the multi-temperature zone wind cooling refrigerator and temperature control method of sterlin refrigerator
CN108800713B (en) * 2018-05-09 2021-07-20 上海理工大学 Multi-temperature-zone air-cooled refrigerator adopting Stirling refrigerator and temperature control method

Also Published As

Publication number Publication date
EP1852665A1 (en) 2007-11-07
WO2006087840A1 (en) 2006-08-24
KR20070103504A (en) 2007-10-23
US20080155994A1 (en) 2008-07-03

Similar Documents

Publication Publication Date Title
CN101120215A (en) Cooling shed
US6370908B1 (en) Dual evaporator refrigeration unit and thermal energy storage unit therefore
JP4365378B2 (en) Defrosting operation control device and defrosting operation control method
US8365543B2 (en) Cooling storage
CN100578123C (en) Refrigerator
JP2007225158A (en) Defrosting operation control device and method
US4932221A (en) Air-cooled cooling apparatus
EP2124000A1 (en) Cooling storage building and method of operating the same
CN101566418B (en) Refrigerator
JP2005172298A (en) Control method of refrigerator
CN103629877A (en) Refrigerator
EP0123638B1 (en) A system for draining liquid refrigerant from a subcooler in a vapor compression refrigeration system
JPH11148759A (en) Refrigerator equipped with two sets of evaporators
JP3935912B2 (en) Refrigerator
JP2004092939A (en) Refrigerator-freezer
JP3819815B2 (en) Refrigerant leak detection method for refrigerator
JP3504188B2 (en) refrigerator
JP4497369B2 (en) Cooling storage
KR100772233B1 (en) How to control refrigerators and freezers
JP4121197B2 (en) freezer
CN219063871U (en) Refrigerator with a refrigerator body
JP2010112632A (en) Refrigerator
JP3851246B2 (en) Control method of flammable refrigerant refrigerator
JP4121208B2 (en) Food refrigerator
US20070245747A1 (en) Cooling Box

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication