CN101046345A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN101046345A CN101046345A CNA200710091598XA CN200710091598A CN101046345A CN 101046345 A CN101046345 A CN 101046345A CN A200710091598X A CNA200710091598X A CN A200710091598XA CN 200710091598 A CN200710091598 A CN 200710091598A CN 101046345 A CN101046345 A CN 101046345A
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- Prior art keywords
- cold air
- space
- temperature
- supercooling
- container
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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
- 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
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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
- 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
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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
- F25D31/00—Other cooling or freezing apparatus
- F25D31/006—Other cooling or freezing apparatus specially adapted for cooling receptacles, e.g. tanks
- F25D31/007—Bottles or cans
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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
- 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
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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
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/002—Details for cooling refrigerating machinery
- F25D2323/0027—Details for cooling refrigerating machinery characterised by the out-flowing air
- F25D2323/00276—Details for cooling refrigerating machinery characterised by the out-flowing air from the bottom
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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
- F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
- F25D2331/80—Type of cooled receptacles
- F25D2331/803—Bottles
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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
- F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
- F25D2331/80—Type of cooled receptacles
- F25D2331/805—Cans
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/121—Sensors measuring the inside temperature of particular compartments
Abstract
When cooling drink water by using household refrigerator, it is insufficient to average cool gas in the refrigerator, internal temperature distribution of the drink water causes over cool release or the over cool is tend to be released. The invention provides a refrigerator having a storing chamber 10 cooling food stored in the space 65, which comprises a cool gas flow space 66 arranged around the space 65; a heat insulation layer 70 arranged between the space 65 and the cool gas flow space 66; a cool gas output port 57 outputting cool gas cooling temperature to the cool gas flow space 66 such that inside of the space 65 is cooled to cool temperature range lower than 0 DEG C to indirectly cool the food. The refrigerator, by the cooling mode, can restrain the generation of internal temperature distribution of the drink water such that drink water in over cool does not release over cool by chance.
Description
Technical field
The present invention relates to a kind of refrigerator.
Background technology
Even water below the solidification point also with the liquid and state that exists, be that the supercooling phenomenon has been just known since very early.For example, in glass, injecting the container become the supercooling state during drinking water,, and on glass, generate the ice of husky ice (sherbet) shape because the impact that produce this moment causes supercooling to be disengaged in a flash.The drinking water that the ice Buddhist monk of Sha Bingzhuan is not freezed mixes that not only sight is strong, and also obtains people as new mouthfeel drinking water and pay close attention to, and this product is actual in health club, public house, bar etc. have been supplied to the guest., because the supercooling state of drinking water is unusual unsure state on physical property, so be difficult to keep.For example, pass to Temperature Distribution in the vibration, cooling velocity, refrigerator of drinking water, and drinking water in Temperature Distribution etc. be considered to the main cause that the liquid supercooling is removed, but also have a lot of not clear places academicly.
When making the drinking water supercooling by home electric refrigerator, the countermeasure that the vibration when preventing owing to the door switching causes supercooling to be removed also is important, and meanwhile, the cooling means of drinking water becomes big problem.In addition, cooled beverage water has from cold air and the icing situation of the direct position contacting of drinking water container when the solidification point of regulation is following in case.Therefore, in order to make drinking water arrive the supercooling temperature field of regulation and to keep its temperature, need make the interior sammingization of case and make drinking water inside not have the cooling means of Temperature Distribution.
Enumerate patent documentation 1 in order to solve such problem.In patent documentation 1 for the cold air in the case is divided into the temperature distribution state that gas becomes homogeneous, possess cool-air feed pipe and cold air suction pipe, make the temperature distribution state that becomes homogeneous in the storage box when drinking water is cooled to the supercooling state, to prevent arriving set point of temperature (solidification point below) supercooling before releasing.In addition, the circulating cold air amount when the supercooling running is carried out in control in patent documentation 2 reduces the temperature change in the case.
[patent documentation 1] spy opens the 2003-214753 communique
[patent documentation 2] spy opens the 2001-4260 communique
, when utilizing home electric refrigerator to make the drinking water supercooling, it is not enough only making the cold air atmosphere gas homogeneous in the case, and the drinking water temperature inside distributes and causes supercooling to be removed sometimes, or makes that supercooling is easy to remove.
Summary of the invention
The present invention is in view of above-mentioned problem, and its purpose is to provide a kind of refrigerator of keeping the supercooling state of realizing improving.
In refrigerator with storeroom that the food that leaves in the space is cooled off, be used to realize first form of the present invention of above-mentioned purpose, possess:
The cold air free air space, its be arranged on described space around;
Heat insulation layer, it is arranged between described space and the described cold air free air space;
The cold air discharge opening, it is to the described cold air free air space cold air of cryogenic temperature that spues, so that be cooled to the cryogenic temperature band than 0 ℃ low in the described space; With
Cooler, it generates the cold air that spues from described cold air discharge opening,
Make in the described space temperature lower, to carry out the indirect cooling of food than 0 ℃.
In addition, second form of the present invention is to have:
The cold air free air space, its be arranged on described space around;
Spaced walls, it is for the indirect food of cooled and stored in described space, and separates described space and described cold air free air space;
Heat insulation layer, it is arranged between described space and the described cold air free air space;
The cold air discharge opening, it is to the described cold air free air space cold air of cryogenic temperature that spues, so that be cooled to the cryogenic temperature band than 0 ℃ low in the described space; With
Cooler, it generates the cold air that spues from described cold air discharge opening.
In the desirable concrete structure of above-mentioned second form, described spaced walls has peristome up, and described spaced walls does not have the container parts in hole and the cover of the described peristome of covering to constitute by side and bottom surface.
In addition, in having the form of above-mentioned arbitrary structures, better concrete form as shown below.
(1) have the cold air return port, it is used for returning the cold air that spues and circulate from described cold air discharge opening to described cooler in described storeroom, makes described cold air discharge opening be positioned at the top of described cold air return port.
(2) air themperature in the described space, at the upside in described space than downside height, and flow through the cold air temperature of described cold air free air space, to compare upside lower than downside with described space, when the food in described space, deposited more than 5 ℃, described food is cooled to than 0 ℃ of low temperature through 4 ℃～0 ℃ temperature.
In addition, the 3rd form of the present invention is following refrigerator, and it has: cooling unit, and it is to cooling off in the case that is divided into a plurality of temperature fields; And temperature control unit, its temperature that described cooling unit and temperature detecting unit are carried out in the case is in linkage controlled, possess in this refrigerator: cooling unit, it is kept at drinking water or fresh food below the solidification point, makes cold air in the cocycle of wall of a container face peripheral part.
Can provide a kind of refrigerator of keeping the supercooling state of realizing improving according to the present invention.
Description of drawings
Fig. 1 is the front appearance figure of the refrigerator of embodiment of the present invention.
Fig. 2 is the profile of the refrigerator of embodiment of the invention mode.
Fig. 3 is the structural map that overcooled storeroom is carried out in expression.
Fig. 4 is arranged on the stereogram of the inboard container of supercooling internal tank.
Fig. 5 is the figure that expression is arranged on the anti-skidding thing on the rib (rib).
Fig. 6 is the state diagram that supercooling container and inboard container have been made up in expression.
Fig. 7 is the figure when constituting the supercooling container structure different with the example of Fig. 3～Fig. 6.
Fig. 8 be in the direct cooling mode fluid temperature through the time schematic diagram that changes.
Fig. 9 be in the indirect type of cooling fluid temperature through the time schematic diagram that changes.
Figure 10 is that expression is used for according to the theoretical energy variation figure that generates ice-nucleus of homogeneous karyogenesis.
Figure 11 schematically illustrates the tendency chart of keeping probability with respect to the supercooling of liquid water temperature.
Figure 12 is the skeleton diagram of experimental rig.
Figure 13 is the temperature transition diagram that is illustrated in each example shown in Figure 12.
Figure 14 is the skeleton diagram in the storeroom.
Symbol description:
1. compressor; 2. condenser; 3. choke valve; 4. cooler; 5. cooling fan in the case; 6. air door; 7. refrigerating chamber cold air wind path; 8. refrigerator; 9. refrigerating chamber; 10,11. refrigerating chambers; 12. vegetable compartment; 13. refrigerating chamber wind path; 14. refrigerating chamber return port; 15. refrigerating-chamber door; 16,17 refrigerating chamber doors; 18. vegetable compartment door; 26. rib; 27. drinking water container; 29. inboard container; 30. anti-skidding thing; 40,41. refrigerating chamber containers; 42. vegetable compartment container; 43. ice-making compartment door; 45,53. handles; 46. slidingtype lid; 47. slidingtype lid coiling portion; 49. guide rail; 50,55. adiabatic walls; 51,52. cold air flows; 54. housing; 56. container parts; 57. discharge opening; 58. cover; 59. liner; 60. blower fan guard; 61. suction inlet; 62. supercooling container; 65. storage space; 66. cold air free air space; 70. heat insulation layer;
The specific embodiment
As describing as can be known in this part: in order to make the supercooling drinking water in home electric refrigerator, need indirect cooled beverage water, be suppressed at the Temperature Distribution of the inner above-below direction that produces of drinking water, this is crucial.Therefore, the supercooling container adopts the indirect type of cooling that does not flow directly into cold air, and the Temperature Distribution that reduces to produce on the vertical direction in drinking water is to keep the supercooling state.
Adopted following mode in the present embodiment: the container in being arranged at the home electric refrigerator storeroom, be that the peripheral part of tank has heat insulation layer, utilize the cold air that flows through around the tank to come indirect cooling settings in the drinking water and the fresh food of tank inside.The tank temperature inside detects by temperature sensor, and the air door (damper) of the cold air inlet portion by being installed in the storeroom that is provided with tank is controlled.
In addition, plastic bottle (PET bottle) or drinking water containers such as bottle, jar directly contact with the wall of tank, in order not freeze to cause removing supercooling from this part, and on container, be provided with the split inboard container that is provided with rib (rib) shape protuberance, to reduce the part that drinking water container and container inner wall directly contact.In addition, for the drinking water container does not move, the part that contacts with the drinking water container at protuberance is provided with anti-skidding thing (for example, rubber), even the drinking water container also is difficult to move in tank when door opens and closes like this.Adopt accompanying drawing that the embodiment of refrigerator with these structures is described.
Fig. 1 is the front appearance figure of the refrigerator of embodiment of the present invention.Refrigerator shown in Figure 1 constitutes (with reference to Fig. 2) by the body of thermal insulating box that has refrigerating chamber 9, refrigerating chamber 10,11 and vegetable compartment 12 from top to bottom, covers separately storeroom peristome with refrigerating-chamber door 15, ice-making compartment door 43, refrigerating chamber door 16,17 and vegetable compartment door 18.In addition, also the situation of figure is inconsistent therewith about configuration.
In addition, making icehouse door 43, refrigerating chamber door 16,17 and vegetable compartment door 18 is doors of drawer type, and it is drawn out of such structure for the casing in each refrigerating chamber.
Fig. 2 is the profile of the refrigerator of embodiment of the invention mode.Refrigerator 8 is configured with the order of refrigerating chamber 9, refrigerating chamber 10,11 and vegetable compartment 12 from top to bottom.Possess the casing 40,41,42 that food storage is used in the inside of refrigerating chamber, vegetable compartment, the casing 40,41,42 that this food storage is used respectively with the switching of refrigerating chamber door 16,17 and vegetable compartment door 18 interlock.In cooler bin, the freeze cycle of packing in refrigerator 8 is made of compressor 1, condenser 2, choke valve 3, cooler 4, and these connect in turn by freezing pipe arrangement.It is indoor that cooler 4 is configured in the cooler that is positioned at refrigerating chamber 10,11 backs, and the cooler chamber separates by spaced walls and refrigerating chamber.Circulate cold air with in the cooler bin by cooling fan 5 in the case that is arranged on cooler 4 downstream sides, by being arranged on the switching of the air door 6 of cooling fan 5 downstream sides in the case, import cold air to refrigerating chamber wind path 7 or refrigerating chamber wind path 13, provide cold air refrigerating chamber 9 or refrigerating chamber 10,11.A part that offers the cold air of refrigerating chamber 9 by importing is cooled off vegetable compartment 12 (not shown).
When air door 6 is opened,, provide cold air, simultaneously refrigerated compartment 9, vegetable compartment 12 and refrigerating chamber 10,11 from being made as a plurality of refrigerating chamber discharge openings or refrigerating chamber discharge opening by refrigerating chamber wind path 7, refrigerating chamber wind path 13.The cold air that has cooled off refrigerating chamber 9 turns back to cooler 4 via the refrigerating chamber recurrent canal, and in addition, the air that has cooled off refrigerating chamber 10,11 turns back to cooler 4 via refrigerating chamber return port (refrigerating chamber returns air inflow portion) 14.In addition,, air door 6 can be changed to and close, import cold air to cool off to refrigerating chamber wind path 13 cooling off refrigerating chamber at 10,11 o'clock separately.At this moment, turn back to the cold air of cooler 4 only from refrigerating chamber return port 14.
That is, the refrigerator of present embodiment has: refrigerating chamber 10,11, and it is with the indoor cryogenic temperature band that remains on; Cooler 4, it is configured in back, the cooler bin inner circulating air of this refrigerating chamber 10,11; The cooler chamber, it is provided with this cooler 4 and is arranged on the back of the spaced walls that separates cooler chamber and refrigerating chamber 10,11; And cooling fan 5 in the case, the circulating cold air that it generates cooler 4.In addition, on the spaced walls that separates cooler chamber and refrigerating chamber 10,11, the cold air return port 14 that is communicated with cooler chamber and refrigerating chamber 10,11 is set.
Fig. 3 is the structural map that overcooled storeroom is carried out in expression.Below, will be used for overcooled tank and be called the supercooling container and describe.In this example, supercooling container 62 is arranged on the refrigerating chamber 10.Therefore, be recited as in the following description and make the overcooled storeroom of refrigerating chamber 10 representative carrying out.Refrigerating chamber 10 is for fear of invading from the heat of other storeroom, and the refrigerating chamber 11 by adiabatic wall 50,55 and refrigerating chamber 9, hypomere separates.In addition, though not expression in the drawings also separates by the ice-making compartment of adiabatic wall with horizontal adjacency.
Cold air to refrigerating chamber 10 flows into flows into refrigerating chamber from the discharge opening 57 that is arranged on the blower fan guard (fanguard) 60 that constitutes refrigerating chamber 10 rear walls, derives outside refrigerating chamber 10 through the suction inlet 62 that is positioned at discharge opening 57 belows.Upstream side at discharge opening 57 is provided with air door (not shown), can control the temperature in the supercooling container 62.In addition, can also have the electric heater of controlling temperature as required.
In addition, also mounting temperature sensor (not shown) on supercooling container 62 is controlled the switching of air door according to the output of this temperature sensor.Like this, can control supercooling container 62 temperature inside by controlling the cold air that flow into refrigerating chamber 10 from discharge opening 57.
Have the top opening of the container parts 56 of heat insulation layer 70, cover, at the supercooling container 62 inner storage spaces 65 that form by cover 58.Because cover 58 also has heat insulation layer, so the external insulation of storage space 65 and supercooling container 62.This heat insulation layer can dispose heat-insulating materials such as foam polyurethane (urethane), foam styrene or vacuum heat insulation materials and form, and as described later, because utilize the low temperature in supercooling container 62 outsides to come in the cold storage space 65, can form by the air adiabatic layer.
Especially, because on the characteristic of supercooling container 62, considered situation, so air adiabatic is easy at adhesive waters such as dewfall taking place or unload when cleaning.The back that is configured in about the heat insulation layer that forms air adiabatic is narrated.
Supercooling container 62 is connected with housing 54, makes cooled containers 62 and refrigerating chamber door 16 interlocks, has liner 59 between the open circles perimembranous of refrigerating chamber door 16 and refrigerating chamber 10, to suppress the external leaks cold air to refrigerator 8.In addition, cover 58 is owing to not needing and refrigerating chamber door 16 interlock extractions, so even be fixed on also not influence in the refrigerating chamber 10.When cover 58 being constituted, handle 53 can be set on cover 58 with refrigerating chamber door 16 interlock extractions.
Then, the method for the food (comprise drinking water) of cooled and stored in storage space 65 is carried out simple declaration.To the cold air that refrigerating chamber 10 spues, flow through supercooling container 62 cold air free air space 66 on every side from discharge opening 57, outside refrigerating chamber 10, derive from the suction inlet 61 that is positioned at discharge opening 57 belows.Chamber wall or cover 58 by supercooling container 62 separate storage space 65 and cold air free air space 66.And this chamber wall or cover 58 become spaced walls, can make the cold air that flows through cold air free air space 66 not flow directly into internally cooling off indirectly of storage space 65 like this.
In addition, for the upside of the cover in cold air free air space 66 58 flows through the cold air that spues, and discharge opening 57 is configured in the top of cover 58.Therefore, (illustrate with arrow: most of top by cover 58 symbol 51), the peripheral part along supercooling container 62 flows the cold air that flows into from discharge opening 57 afterwards, (illustrates with arrow: symbol 52) outside suction inlet 61 flow to refrigerating chamber 10.In addition, cooling refrigerating chamber 10 interior, the cold air outside suction inlet 61 exports to refrigerating chamber 10 afterwards, turn back to the cooler chamber after having cooled off hypomere side refrigerating chamber 11, cool off once more by cooler 4.
In addition, refrigerating chamber 10 switches to the temperature (aftermentioned) of generation supercooling state and common cryogenic temperature (below 18 ℃).That is,, can carry out common freezing preservation, but in the following description, omit explanation, describe for the temperature of preserving food with the supercooling state for common freezing preservation by the conducting/disconnection of change-over switch (not shown).
Be suitable for preserving with the supercooling state temperature of food, according to result of the test as can be known, the drinking water of for example putting into plastic bottle is-5 ℃ approximately, and fishes such as tuna are-3 ℃～-4 ℃ approximately.Like this, cause best temperature difference, set so can carry out temperature by not shown input block because put into the object difference of supercooling container 62.Specifically, to comparing by the detected temperature of the temperature sensor that is arranged on supercooling container 62 with by the temperature that input block is set, the switching of control air door, this air door control is from discharge opening 57 cold air that spues.
Then, when the drinking water that becomes the supercooling state was impacted, the gas-liquid interface in the drinking water container was removed the supercooling state in a flash, generated the ice of husky ice shape.In addition, when preserving fishes such as tuna with the supercooling state, can prolong fresh keeping time, help the preservation of general food like this.
Supercooling container 62 more detailed structures are described.The supercooling container 62 of present embodiment has demountable inboard container 29 in the inside of the outside container that forms shell.Therefore, can the heat insulation layer based on air adiabatic be set by the gap is set between internal container.
Fig. 4 is the stereogram of inboard container 29.Inwall side at inboard container 29 is arranged on a plurality of positions with rib 26, is constructed as follows structure: drinking water container, for example plastic bottle of depositing in container 29 inboards with rib 26 supportings.The part that this external rib 26 contacts with the drinking water container is provided with anti-skidding thing 30 (for example, rubber) as shown in Figure 5.
The action effect of the structure of these inboard containers 29 as described below.When directly contacting drinking water containers such as plastic bottle or bottle, jar or food when the internal face at supercooling container 62, its part is cooled off by the part easily.In the present embodiment, by the such protuberance of rib 26 is set, reduce the part that drinking water container and supercooling container 62 internal faces directly contact on the internal face of supercooling container 62.Therefore, can keep the supercooling state easily.
In addition, in part that drinking water container or food contact with protuberance, be on the top of protuberance anti-skidding things 30 such as rubber to be set, food etc. is difficult to move in supercooling container 62 when door opens and closes thus.Therefore, can reduce the probability of the supercooling state releasing of the meaning of violating the refrigerator user.
Fig. 6 is the state diagram that supercooling container 62 and container 29 have been made up in expression.Reduce the part that drinking water container 27 and supercooling container 62 walls directly contacts, so that partial freezing not to take place, even the effect drinking water that supercooling container 62 is slided owing to anti-skidding thing 30 also is difficult to move, so reduce the probability of supercooling releasing.
Fig. 7 is formed for the storage space 65 of supercooling state preservation and the figure different with the example of Fig. 3～Fig. 6.As other structure of the cover with heat insulation layer, represented to make and covered 46 such examples that slide along guide rail 49.At this moment, possessed the lid 46 of sliding function because have winding mechanism 47, so need not with lid 46 from supercooling container 62 just separate can the access drinking water etc. food.Thus, even be taken out to the outside, when putting into other drinking water again,,, thereby cause shorten cool time so it is less all to change the such situation of cold air in the storage space 65 because lid is a slidingtype at the drinking water that will become the supercooling state.
Then, in order to investigate the advantage of above-mentioned concrete structure, the result who has measured the drinking water variations in temperature is described.
Fig. 8 be the drinking water of the storage space of expression in the supercooling container when directly having sent into cold air, in the direct cooling mode (after, in the explanation of Fig. 8～Figure 11, be called " liquid ".) temperature through the time change schematic diagram.This temperature through the time change be fixed in the space of cooling air temperature platform is set, the temperature of the top of drinking water when having cooled off the drinking water of putting into container and bottom through the time change.By heat conduction from the platform that is provided with container, the cooling velocity of lower liquid in the container is accelerated, so produce Temperature Distribution at above-below direction, in the cooling initial stage, it is lower than upper temp that temperature of lower becomes.
, because the maximal density of water is 4 ℃ approximately, so when upper temp arrived 4 ℃, the liquid that is present in top moved to the bottom.Liquid in the bottom cooling moves to top thus, becomes minimum Temperature Distribution so form the upper side temperature.
Fig. 9 be when representing that directly the storage space in the supercooling container has not been sent into cold air, in the indirect type of cooling fluid temperature through the time change schematic diagram.(Fig. 8) is different with direct cooling mode, and cooling velocity is slow, and liquid in container is a metastable state.Therefore, even the Temperature Distribution that the density counter-rotating also is difficult to produce above-below direction in the container takes place, so the convection current that in solution, takes place also a little less than.
When investigate these as a result the time as can be known, it is little that the type of cooling is compared the fluctuation of fluid temperature with direct cooling mode indirectly.
Figure 10 is that expression is used for according to the theoretical energy variation figure that generates ice-nucleus of homogeneous karyogenesis.Even liquid does not begin to freeze below solidification point yet, after the process that generates through ice-nucleus, freeze for the first time, therefore generate and can come systematization by homogeneous karyogenesis theory about ice-nucleus.Liquid as the supercooling state is labile state on physical property, but under the situation that surpasses the free energy (negative free energy) when being phase-changed into ice based on capillary interfacial free energy (positive free energy), keeps supercooling.
The free energy that is present in the liquid of supercooling state becomes the value that satisfies these, so when radius surmounted critical value, it became ice-nucleus when water bunch (a water cluster), supercooling is removed.Because the fluid temperature of supercooling state is low more, the free energy when becoming ice mutually is big more, so the free energy quantitative change in critical radius is little in addition.That is the low more easy more releasing supercooling state of temperature., at the supercooled water of reality, especially under the situation of mixture, contain the impurity of a large amount of formation ice-nucleus, than the probability height that in the homogeneous karyogenesis, generates ice-nucleus, so remove supercooling state (heterogeneity karyogenesis) easily as the drinking water.
As the main cause of removing the supercooling state, delivered following achievement in research, except the impurity that is similar to the ice crystal structure, the character state of the solid wall surface that the interaction of impulsive force, gas-liquid interface and wall (distortion of liquid level), cavitation (cavitation), liquid contact, effect of electric field etc. become removes overcooled main cause, by reducing the size of free energy in bunch critical radius shown in Figure 10, remove supercooling easily.
In addition, as as shown in Fig. 8, Fig. 9, (for example put into the drinking water container in the reality cooling, during plastic bottle) liquid under the situation of directly cooling liquid upper relatively constitute low temperature, can be speculated as thus because interaction liquid upper, solid liquid interface causes removing easily supercooling, perhaps since in the liquid influence of convection current cause removing easily supercooling, so in refrigerator, during the actual fabrication supercooled water, be fit to cooling indirectly.
In addition, in this manual, the mode that the so-called expression of cooling is indirectly cooled off by the low temperature atmosphere gas around the place of placing the cooling object, rather than to the mode of the cooling direct blast-cold gas of object to cool off.Therefore, even be communicated with cooling space and cold air free air space a little,, just be called indirect cooling so long as not direct blast-cold gas.
Figure 11 represents to change the result that fluid temperature is investigated probability according to calculating the number of times that can keep overcooled number of times and releasing, and the schematic diagram of probability with respect to the trend of liquid water temperature kept in supercooling.It is when having cooled off liquid with set point of temperature that probability is kept in so-called supercooling, and liquid arrives this temperature and can keep overcooled probability, and probability is to mean in all cases in 1 o'clock to keep supercooling.By this result as can be known, if fluid temperature step-down then supercooling remove easily, if opposite fluid temperature uprises then keeps supercooling easily.
In addition, when relatively directly cooling is kept probability with the supercooling of cooling indirectly, can obtain selecting the supercooling of cooling indirectly to keep the trend that probability uprises.By test, in fact overcooled holding temperature is fit to about-5 ℃, supercooling keeps that probability improves but the growing amount and the supercooling temperature of Sha Bingzhuan ice after removing are proportional when higher than this temperature, so the ice of husky ice shape tails off when the supercooling holding temperature improves, sight reduces thus, has not also had novel taste when tasting.
Owing to known that to keep probability with near the supercooling of cooling these-5 ℃ indirectly high, so although in order to realize that in the present embodiment supercooling is that the storeroom of temperature band (cryogenic temperature band) than 0 ℃ low also adopts the indirect type of cooling.
Investigate the Temperature Distribution and the water-cooled relation of beverage of supercooling internal tank in more detail for the conclusion that obtains according to Fig. 8～Figure 11, also carried out further test.As shown in figure 12, putting into the drinking water container of water,, the Temperature Distribution of inside is being carried out instrumentation at epimere, stage casing, hypomere difference mounting temperature sensor.On temperature sensor, adopt thermocouple.In addition, the state that closes drinking water container 27 upper surfaces with cap seal has carried out instrumentation.And, during for the epimere side that covers drinking water container 27 with heat-insulating material, carry out instrumentation when covering the hypomere side respectively, compare research with the situation that does not have heat-insulating material with heat-insulating material.
Figure 12 (a) expression does not cover the example that cools off with heat-insulating material, and Figure 12 (b) expression is with the example of heat-insulating material covering epimere side, and Figure 12 (c) expression has covered the example of hypomere side with heat-insulating material.And, these drinking water containers 27 are placed in-4.8 ℃ the atmosphere gas to cool off.
Figure 13 is the temperature transition diagram of having represented in each example shown in Figure 12 (a)～Figure 12 (c).By these figure as can be known, when water temperature was passed through about 4 ℃, trend changed greatly.This phenomenon is because the density of water counter-rotating in the time of about 4 ℃ as mentioned above.
The temperature of the epimere when Figure 13 (a) expression has not been carried out cooling with heat-insulating material covering drinking water container, stage casing, hypomere is passed.In this embodiment because the drinking water container does not have thermal insulation, so cooling velocity is also the fastest., become in about zone below 4 ℃, exist the temperature difference of epimere side and hypomere side to become big trend in water temperature.Figure 13 (b) is the example that covers drinking water container epimere side with heat-insulating material, becomes in about zone more than 4 ℃ in water temperature, and the temperature of epimere side and hypomere side is big, but in about zone below 4 ℃, suppress for temperature difference less.Figure 13 (c) is the example that covers drinking water container hypomere side with heat-insulating material.Can think in this embodiment has following trend: suppress less with the temperature difference of hypomere side for the epimere side in the about zone more than 4 ℃ of water temperature, but temperature difference becomes greatly in the about zone below 4 ℃ of water temperature.
In addition, carried out 48 tests respectively in each example of Figure 12 (a)～Figure 12 (c), the probability that can keep the supercooling state thus is respectively 28.6%, 66.7%, 45.8%.
Investigate these results, draw to draw a conclusion.
(1) the so-called cryogenic temperature band than 0 ℃ low be divided under the gas drinking water of cooling more than 5 ℃ the time, when the drinking water temperature reduced by 4 ℃, Temperature Distribution was reversed up and down.
(2) in the so-called supercooling zone below freezing point, when the Temperature Distribution school in the drinking water container was big, the probability that can keep the supercooling state reduced.
(3) carry out thermal insulation by epimere side, can be suppressed to 4 ℃ of fluctuations less with temperature in the container in the lower area (also comprise below 0 ℃ supercooling zone) to the drinking water container.
From as can be known based on the research of these conclusions, in order in home electric refrigerator, to realize the supercooling state, need below 4 ℃ the temperature fluctuation in the drinking water container be suppressed to lessly, as its method, cooling is more effective from hypomere side cooling raio from the epimere side.
, owing to consider when forcing to cover the epimere side of drinking water container (plastic bottle, bottle, jar etc.) with heat-insulating material and can give numerous and diverse sense to the user of home electric refrigerator, so carried out following research.
Figure 14 is the skeleton diagram in the storeroom (refrigerating chamber 10) that is used to realize the supercooling state, and contrast expression is placed on the relation of the interior temperature of beverage temperature and supercooling container 62 in the drinking water container 27 in the supercooling container 62.When being cooled to below 4 ℃ state, the drinking water temperature is distributed as upside temperature (t easily near the liquid level side
3) the downside temperature (t of low, drinking water container 27 bottom surface sides (downside)
4) high state.On the other hand, the air themperature in the supercooling container 62 is distributed as the temperature (T of upper layer side easily
1) temperature (T of high, lower layer side
2) low.
The refrigerator of being put down in writing is a purpose to come cooled beverage water by the low temperature in space in the supercooling container 62 in the present embodiment.That is, its prerequisite is that the temperature of the storage space 65 in the supercooling container 62 is lower than the temperature of drinking water.Therefore, T
1, T
2Be to compare t
3, t
4Low temperature can make the temperature (t of drinking water container 27 upsides
3) with supercooling container 62 in the upper layer side temperature (T of storage space 65
1) temperature difference Δ T
13, than the temperature (t of drinking water container 27 downsides
4) with supercooling container 62 in the lower layer side temperature (T of storage space 65
2) temperature difference Δ T
24Little (Δ T
13＜Δ T
24).
According to this structure,, can make upside than downside " thermal insulation " owing to can reduce the inside and outside temperature difference of container of drinking water container 27 upsides.
In order to realize these structures, it is effective becoming cold air free air space 66 such structures that cold air 51 flows through storage space 65 upper face sides.In addition, cover the top, make and do not flow directly into cold air in the supercooling container 62 with cover.At this moment, between storage space 65 and the cold air free air space 66, the chamber wall that contains the supercooling container 62 of cover becomes spaced walls, can constitute indirect cooling.
At this moment, the cold air temperature that flows through cold air free air space 66 forms, and the cold air temperature Ta that flows through supercooling container 62 upper face sides is lower than the cold air temperature Tb that flows through following side, sets in advance heat insulation layer 70 in supercooling container 62.Like this, in order to make the cold air temperature Ta that flows through supercooling container 62 upsides lower, for example the cold air discharge opening 57 of the cold air that spues to cold air free air space 66 can be configured in the upside of cold air sucting inlet and cover than the cold air temperature Tb that flows through downside.
Action effect with these structures is as described below.Flow through the cold air (for example, the cold air below-18 ℃) of supercooling container 62 upper face sides, in by supercooling container 62 upper face sides, a part falls from the side, and another part falls (with reference to the arrow of Figure 14) after arriving the refrigerator front side.In addition, in Figure 14 the with dashed lines arrow represent the cold airflow that falls by supercooling container 62 sides to.These cold air are owing to flowing while cooling off supercooling container 62, so temperature slowly rises.Therefore, the cold air temperature Tb (for example ,-15 ℃) that has been sides below the cooled containers 62 is than the cold air temperature Ta height that flows through supercooling container 62 upsides (Ta＜Tb).
Cooled off the supercooling container 62 of outer surface by the cold air that flows through cold air free air space 66, low temperature was communicated to the inboard, but because supercooling container 62 has heat insulation layer 70, so cold storage space 65 slowly.Therefore, form following Temperature Distribution in the inside of storage space 65: the air of low temperature is to lower floor's side shifting, and the temperature T 1 of upper layer side (for example ,-4 ℃) is than the temperature T 2 of lower layer side (for example ,-6 ℃) height.
Be placed on the drinking water in the storage space 65 that becomes such Temperature Distribution, its temperature slowly descends, and is reaching when being lower than 4 ℃ temperature, and the upside temperature t 3 of liquid level side (for example, 1 ℃) is lower than the downside temperature t 4 (for example, 3 ℃) of bottom surface side.At this moment, compare with the temperature difference that storage space 65 interior upper layer side are divided into gas with the drinking water of drinking water container 27 upsides, it is big that the temperature difference of downside becomes.Therefore, in drinking water container 27, can reduce the fluctuation of drinking water temperature, improve the probability that supercooling realizes.
In addition, so long as cold air directly is not blown into just not influence of structures such in the storage space 65, do not entirely shut thereby do not need to seal between the storage space 65 of supercooling container 62 inside and the cold air free air space 66.Therefore, even and have some gaps also not have special problem between the cover of supercooling container 62.Wherein, when porose when waiting peristome in the bottom surface of supercooling container 62, the cold gas of storage space 65 downsides flows to cold air free air space 66, therefore not in the bottom surface of supercooling container 62 or that peristome is set is better in the side.
Present embodiment just can adopt various concrete structures so long as satisfy to adopt the structure of each illustrated condition of Figure 14 under same inventive concept, and need not stick to Fig. 3～shown in Figure 7, construct more specifically.
Claims (6)
1. a refrigerator has the storeroom that the food that leaves in the space is cooled off, and it is characterized in that possessing:
The cold air free air space, its be arranged on described space around;
Heat insulation layer, it is arranged between described space and the described cold air free air space;
The cold air discharge opening, it is to the described cold air free air space cold air of cryogenic temperature that spues, so that be cooled to the cryogenic temperature band than 0 ℃ low in the described space; With
Cooler, it generates the cold air that spues from described cold air discharge opening,
Make in the described space temperature lower, to carry out the indirect cooling of food than 0 ℃.
2. a refrigerator has the storeroom that the food that leaves in the space is cooled off, and it is characterized in that having:
The cold air free air space, its be arranged on described space around;
Spaced walls, it is for the indirect food of cooled and stored in described space, and separates described space and described cold air free air space;
Heat insulation layer, it is arranged between described space and the described cold air free air space;
The cold air discharge opening, it is to the described cold air free air space cold air of cryogenic temperature that spues, so that be cooled to the cryogenic temperature band than 0 ℃ low in the described space; With
Cooler, it generates the cold air that spues from described cold air discharge opening.
3. refrigerator according to claim 2 is characterized in that,
Described spaced walls has peristome up, and described spaced walls does not have the container parts in hole and the cover of the described peristome of covering to constitute by side and bottom surface.
4. according to any described refrigerator in the claim 1～3, it is characterized in that,
Have the cold air return port, it is used for returning the cold air that spues and circulate from described cold air discharge opening to described cooler in described storeroom,
Described cold air discharge opening is positioned at the top of described cold air return port.
5. according to any described refrigerator in the claim 1～3, it is characterized in that,
Air themperature in the described space than downside height, and flows through the cold air temperature of described cold air free air space at the upside in described space, and to compare upside lower than downside with described space,
When the food deposited in described space more than 5 ℃, described food is cooled to than 0 ℃ of low temperature through 4 ℃～0 ℃ temperature.
6. refrigerator has: cooling unit, and it is to cooling off in the case that is divided into a plurality of temperature fields; And temperature control unit, its temperature that described cooling unit and temperature detecting unit are carried out in the case is in linkage controlled, it is characterized in that,
Possess: cooling unit, it is kept at drinking water or fresh food below the solidification point, makes cold air in the cocycle of wall of a container face peripheral part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006096807 | 2006-03-31 | ||
| JP2006096807A JP3903065B1 (en) | 2006-03-31 | 2006-03-31 | refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101046345A true CN101046345A (en) | 2007-10-03 |
| CN100572995C CN100572995C (en) | 2009-12-23 |
Family
ID=37982403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710091598XA Expired - Fee Related CN100572995C (en) | 2006-03-31 | 2007-03-29 | Refrigerator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3903065B1 (en) |
| KR (1) | KR100850062B1 (en) |
| CN (1) | CN100572995C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102519197A (en) * | 2011-12-08 | 2012-06-27 | 南通大学 | Refrigerator for manufacturing overcooled liquid |
| CN102937355A (en) * | 2011-08-15 | 2013-02-20 | 苏州三星电子有限公司 | Fruit and vegetable chamber of refrigerator |
| CN110686461A (en) * | 2019-10-11 | 2020-01-14 | 合肥晶弘电器有限公司 | Refrigerator food preservation control method and device and refrigerator |
| CN110906673A (en) * | 2019-10-30 | 2020-03-24 | 合肥晶弘电器有限公司 | Control method for instant freezing storage of refrigerator and refrigerator |
| CN111141086A (en) * | 2019-10-30 | 2020-05-12 | 合肥晶弘电器有限公司 | Instant freezing chamber control method and refrigerator |
| CN111189295A (en) * | 2019-10-30 | 2020-05-22 | 合肥晶弘电器有限公司 | Instant freezing storage control method and refrigerator |
| CN112460897A (en) * | 2020-12-04 | 2021-03-09 | 珠海格力电器股份有限公司 | Refrigerator and control method of instant freezing chamber thereof |
| CN113028707A (en) * | 2019-12-24 | 2021-06-25 | 日立环球生活方案株式会社 | Refrigerator with a door |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4827788B2 (en) * | 2007-04-17 | 2011-11-30 | 三菱電機株式会社 | refrigerator |
| JP4775340B2 (en) * | 2007-07-20 | 2011-09-21 | 三菱電機株式会社 | refrigerator |
| JP4595972B2 (en) * | 2007-07-30 | 2010-12-08 | 三菱電機株式会社 | refrigerator |
| KR100892453B1 (en) * | 2007-09-21 | 2009-04-10 | 엘지전자 주식회사 | Apparatus for supercooling |
| KR100911268B1 (en) * | 2007-09-21 | 2009-08-11 | 엘지전자 주식회사 | Apparatus for supercooling |
| KR101508774B1 (en) | 2007-09-21 | 2015-04-03 | 엘지전자 주식회사 | Supercooling apparatus |
| KR101330335B1 (en) | 2007-09-21 | 2013-11-15 | 엘지전자 주식회사 | Supercooling apparatus |
| KR101143975B1 (en) | 2008-12-16 | 2012-05-09 | 엘지전자 주식회사 | Refrigerator |
| KR101143973B1 (en) * | 2009-01-08 | 2012-05-09 | 엘지전자 주식회사 | A refrigerating apparatus |
| JP2011017472A (en) * | 2009-07-08 | 2011-01-27 | Hitachi Appliances Inc | Refrigerator |
| JP6035115B2 (en) * | 2012-11-07 | 2016-11-30 | 株式会社ヤクルト本社 | Cooling container lid |
| JP2017009284A (en) * | 2016-10-20 | 2017-01-12 | 三菱電機株式会社 | refrigerator |
| JP7017384B2 (en) * | 2017-12-05 | 2022-02-08 | 東芝ライフスタイル株式会社 | refrigerator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04365468A (en) * | 1991-06-10 | 1992-12-17 | Dainippon Printing Co Ltd | Supercooled liquid drink and its preparation |
| JP4647047B2 (en) | 1999-06-25 | 2011-03-09 | パナソニック株式会社 | Supercooling control refrigerator |
| JP2003214753A (en) | 2002-01-21 | 2003-07-30 | Hoshizaki Electric Co Ltd | Cooling device for supercooling drinking water |
| KR101176455B1 (en) * | 2006-01-14 | 2012-08-30 | 삼성전자주식회사 | An apparatus for super-cooling and a refrigerator and it's control method |
-
2006
- 2006-03-31 JP JP2006096807A patent/JP3903065B1/en not_active Expired - Fee Related
-
2007
- 2007-03-29 CN CNB200710091598XA patent/CN100572995C/en not_active Expired - Fee Related
- 2007-03-29 KR KR1020070030747A patent/KR100850062B1/en not_active IP Right Cessation
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102937355A (en) * | 2011-08-15 | 2013-02-20 | 苏州三星电子有限公司 | Fruit and vegetable chamber of refrigerator |
| CN102937355B (en) * | 2011-08-15 | 2015-08-19 | 苏州三星电子有限公司 | A kind of refrigerator fruits and vegetables room |
| CN102519197A (en) * | 2011-12-08 | 2012-06-27 | 南通大学 | Refrigerator for manufacturing overcooled liquid |
| CN102519197B (en) * | 2011-12-08 | 2014-02-19 | 南通大学 | Refrigerator for manufacturing overcooled liquid |
| CN110686461A (en) * | 2019-10-11 | 2020-01-14 | 合肥晶弘电器有限公司 | Refrigerator food preservation control method and device and refrigerator |
| CN110906673A (en) * | 2019-10-30 | 2020-03-24 | 合肥晶弘电器有限公司 | Control method for instant freezing storage of refrigerator and refrigerator |
| CN111141086A (en) * | 2019-10-30 | 2020-05-12 | 合肥晶弘电器有限公司 | Instant freezing chamber control method and refrigerator |
| CN111189295A (en) * | 2019-10-30 | 2020-05-22 | 合肥晶弘电器有限公司 | Instant freezing storage control method and refrigerator |
| CN113028707A (en) * | 2019-12-24 | 2021-06-25 | 日立环球生活方案株式会社 | Refrigerator with a door |
| CN112460897A (en) * | 2020-12-04 | 2021-03-09 | 珠海格力电器股份有限公司 | Refrigerator and control method of instant freezing chamber thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100572995C (en) | 2009-12-23 |
| KR20070098641A (en) | 2007-10-05 |
| JP3903065B1 (en) | 2007-04-11 |
| KR100850062B1 (en) | 2008-08-04 |
| JP2007271150A (en) | 2007-10-18 |
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