CN208059386U - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
CN208059386U
CN208059386U CN201820343294.1U CN201820343294U CN208059386U CN 208059386 U CN208059386 U CN 208059386U CN 201820343294 U CN201820343294 U CN 201820343294U CN 208059386 U CN208059386 U CN 208059386U
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CN
China
Prior art keywords
supercooling
chamber
temperature
top plate
preserving
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CN201820343294.1U
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Chinese (zh)
Inventor
山村毅
西贝恭辉
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00Charging, supporting, and discharging the articles to be cooled
    • F25D25/02Charging, supporting, and discharging the articles to be cooled by shelves

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  • 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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The refrigerator of the utility model has:Refrigerating chamber is set to refrigerating temperature zone;Supercooling preserving chamber is set to the indoor lower side of refrigeration, and cooled object is cooled to the solidification point lower than refrigerating temperature zone supercooling temperature below;Top plate is consisted of by air seal between the transparent component of the opposed plate of multi-disc, which becomes the upper surface of supercooling preserving chamber, and top plate has top plate heating device.

Description

Refrigerator
Technical field
The utility model is related to refrigerators.More particularly to having the function of the ice for making cooled object be in supercooling state Case.
Background technology
Under normal circumstances, in refrigerator alap temperature is preferably maintained when maintaining quality unchangeably to preserve food It spends and does not freeze.As the method preserved as realization, proposition has the method for preserving food under supercooling state.? This, supercooling state refers to:Even if food reaches chill point hereinafter, also not starting to freeze but in non-frozen state.However, In the case that (such as 0 DEG C or less) preserves food below chill point, it is possible to make supercooling because of impact or certain factors State is released from, to generate ice crystal on food.If moreover, maintain the state that is released from of supercooling state and place, Food freezes to aggravate, to which the cellular damage caused by freezing can cause the quality of food to reduce.
In order to avoid this problem, proposition, which has, is periodically changed temperature to make produced by the releasing because of supercooling state The method melted of ice crystal.Such as disclose refrigerator below, i.e.,:In the supercooling operating for making food be in supercooling state Afterwards, in the case where the operating and stopping of cooling unit caused by being set because of temperature under refrigeration operates are repeated more than once, again Start supercooling operating (referring for example to patent document 1).In refrigerator described in Patent Document 1, operated by supercooling, even if In the case where starting to occur food freezing, by carrying out based on the cold of the high set temperature of the set temperature operated than supercooling Transport contraband turns, and can prevent food fully charge.
In addition, disclosing the refrigerator that following process is repeated, i.e.,:Set temperature in refrigerator is set as by low temperature process The temperature lower than the chill point of food;Set temperature in refrigerator is set as the temperature higher than chill point and (such as joined by heating process According to patent document 2).In the refrigerator of patent document 2, even if releasing the supercooling state of food in low temperature process, thus Ice crystal is generated on food and is started in the case of freezing, by starting to warm up process at the time of presetting, so as to The ice crystal generated when supercooling releases is set to melt.In addition, realizing supercooling shape by executing low temperature process again later State, so as to steadily maintain the supercooling state of food.
On the other hand, it discloses with lower structure, i.e.,:With the storeroom for allowing hand over low temperature chamber and supercooling preserving chamber Refrigerator in, immediately below the top plate of supercooling preserving chamber use heat insulating member (for example, referring to patent document 3).In patent text Offer in 3 refrigerator, the thermal insulation and cooling of supercooling preserving chamber can be improved, and can realize prevent supercooling protect Deposit the moisture condensation of room generation.
In addition, disclosing a kind of refrigerator (example preserving the structure with cold-storage material immediately below indoor top plate in supercooling Such as, with reference to patent document 4).In patent document 4, in the case where storage indoor temperature becomes set temperature or more, by storage Cryogen absorbs heat, in the case that below as set temperature, by cold-storage material heat release.Therefore it can make the indoor Air Temperature of storage It spends thermostatic, the variation for storing indoor air themperature can be inhibited, the quality variation of raw Fresh food can be prevented.
Patent document 1:No. 4647047 bulletins of Japanese Patent No.
Patent document 2:No. 4948562 bulletins of Japanese Patent No.
Patent document 3:Japanese Unexamined Patent Publication 2013-083364 bulletins
Patent document 4:Japanese Unexamined Patent Publication 2015-038391 bulletins
For example, convenience is required to the supercooling preserving chamber for preserving cooled object under supercooling state from now on, but upper In the patent document stated, for example there is following projects.
For example, in the refrigerator of patent document 1, the time for executing refrigeration operating is the cycle weight under common refrigeration operating The multiple primary above time.The relationship of the time and the heat when time for executing supercooling operating and each operating are not considered. Thus, for example in the case where the time for executing refrigeration operating is too short relative to the time for executing supercooling operating, existing can not Fully melt the ice crystal of food and cause food freeze aggravation possibility.In addition, in the time phase for executing refrigeration operating For execute the supercooling duration of runs it is long in the case of, there are the preservation of food during mean temperature increase, cause to eat The possibility that the quality of product reduces.
In addition, in the refrigerator of patent document 2, for the purpose of so that the ice crystal generated in low temperature process melts completely, To set the time etc. of low temperature process.Specifically, in the refrigerator of patent document 2, the time of low temperature process is set as:From Water becomes the latent heat Q1 discharged when ice, freeze the latent heat Q2 that captures from water in carrying out and thaw carry out in assign the hot Q3 of ice Meet the relationship of Q3 >=Q1+Q2.Thereby, it is possible to so that the ice crystal generated in low temperature process is melted completely.However in patent text It offers in 2 refrigerator, fine temperature is needed to control.Therefore it is for example protected in the height of expansion supercooling preserving chamber, expansion supercooling In the case of depositing room volume, temperature difference can be generated in upper area and lower area, expected temperature control can not be carried out, therefore Being likely to result in the quality of food reduces.
In addition, the refrigerator of patent document 3 uses heat insulating member immediately below the top plate on supercooling preserving chamber top.Thus it carries Exceed the thermal insulation and cooling of cooling preservation room, and can realize the volume enlargement of supercooling preserving chamber.However, due to Heat insulating member is used immediately below top plate, so even top plate uses the transparent components such as glass, it also can not be from top plate side visual confirmation The inside of supercooling preserving chamber.Therefore, if not opened cooling preservation room, can not acknowledged cooling preservation room content, Convenience is caused to be deteriorated.
In addition, the refrigerator of patent document 4 by using cold-storage material inside supercooling preserving chamber, is subcooled so as to realize But it preserves.However, cost can be caused to increase using cold-storage material.In addition, even if top plate is using the transparent components such as glass, there is also with It is placed in the problem of cool storage material immediately below top plate makes the visual variation inside supercooling preserving chamber.
Utility model content
The utility model is to solve at least one made, and it is an object of the present invention to provide a kind of of project as described above Refrigerator with the supercooling preserving chamber than having more convenience in the past.
In order to solve existing project as described above, the refrigerator of the utility model has:Refrigerating chamber is set to cold Hide temperature band;Supercooling preserving chamber is set to the indoor lower side of refrigeration, cooled object is cooled to lower than refrigerating temperature zone Solidification point supercooling temperature below;And top plate, it consists of air seal in the transparent of the opposed plate of multi-disc Between component, and the top plate becomes the upper surface of supercooling preserving chamber, and top plate has top plate heating device.
On the basis of refrigerator described in technical solution 1, have:Vegetable compartment is configured at the downside of the refrigerating chamber, and It is set with the temperature higher than the refrigerating chamber;The vegetable compartment is arranged in the indoor lower side of refrigeration for boundary wall The supercooling preserving chamber between be separated;And heating device, it is set to the boundary wall, the supercooling is protected Interior is deposited to be heated.
On the basis of refrigerator described in technical solution 2, there is refrigerating chamber suction inlet, the air of the refrigerating chamber is inhaled Enter, in plan view, the refrigerating chamber suction inlet and Chong Die, the supercooling of supercooling preserving chamber suction inlet at least part Preserving chamber suction inlet sucks the air of the supercooling preserving chamber.
On the basis of refrigerator described in any one of technical solution 1~3, the supercooling preserving chamber can be switched For:The ice of the refrigerating chamber of the negative temperature band lower than the supercooling temperature or the positive temperature band higher than the supercooling temperature Fresh room.
On the basis of refrigerator described in any one of technical solution 1~3, the top plate heating device is line heating Device.
On the basis of refrigerator described in technical solution 2 or 3, the water feeding tank of ice making is accommodated in the boundary wall.
On the basis of refrigerator described in technical solution 6, the top plate heating device is line heater.
On the basis of refrigerator described in technical solution 6, the supercooling preserving chamber can be switched to:Than the supercooling But the chilled room of the refrigerating chamber of the low negative temperature band of temperature or the positive temperature band higher than the supercooling temperature.
On the basis of refrigerator described in technical solution 8, the top plate heating device is line heater.
Refrigerator according to the present utility model, the top plate for becoming the upper surface of supercooling preserving chamber are configured to exist air seal Between multi-disc transparent component, it is thus possible to the state inside visual confirmation supercooling preserving chamber, and there is higher thermal insulation Energy.Therefore it can increase supercooling preserving chamber in the height direction and expand internal volume, so as to improve supercooling preserving chamber Convenience.
Description of the drawings
Fig. 1 is the front view of the appearance of the refrigerator 1 for the embodiment 1 for being schematically indicated the utility model.
Fig. 2 is the knot in the refrigerator 1 including the first wind path 10 for the embodiment 1 for being schematically indicated the utility model The internal structure chart of structure.
Fig. 3 is the knot in the refrigerator 1 including the second wind path 12 for the embodiment 1 for being schematically indicated the utility model The internal structure chart of structure.
Fig. 4 is the component indicated centered on the supercooling preserving chamber 5 in the refrigerator 1 of the embodiment 1 of the utility model Deng position relationship figure.
Fig. 5 is the schematic diagram of the structure of top plate 18 possessed by the refrigerator 1 for the embodiment 1 for indicating the utility model.
Fig. 6, which is the refrigerator 1 of the embodiment 1 of the utility model from the upper surface side of supercooling preserving chamber 5, to be had Top plate 18 schematic diagram.
Fig. 7 is supercooling in the case of top plate 18 possessed by the refrigerator 1 that indicates using the embodiment 1 of the utility model The figure of the cooling result of preserving chamber 5.
Fig. 8 is the schematic diagram of the structure of top plate 18 possessed by the refrigerator 1 for the embodiment 2 for indicating the utility model.
Fig. 9, which is the refrigerator 1 of the embodiment 2 of the utility model from the upper surface side of supercooling preserving chamber 5, to be had Top plate 18 schematic diagram.
Reference sign:1 ... refrigerator;2 ... refrigerating chambers;3 ... vegetable compartments;4 ... freezing chambers;5 ... supercooling preserving chambers; 6 ... compressors;7 ... boundary walls;8 ... coolers;9 ... Air Blast fans;10, the first wind path of 10a, 10b ...;11,11a, 11b ... wind Gear;12 ... second wind paths;13 ... front surface walls;14 ... accommodating containers;15 ... supercooling preserving chamber suction inlets;16 ... heaters; 17 ... blowout wind paths;18 ... top plates;19 ... water feeding tanks;21 ... shelves;22 ... refrigerating chamber suction inlets;23 ... still air layers; 24 ... transparent components;25 ... line heaters;26 ... vibrating parts;27 ... resinous frameworks;50 ... shells;100 ... control devices
Specific implementation mode
The utility model can be such that the heat-proof quality at the top plate of supercooling preserving chamber improves, and expand short transverse and expand Volume, the supercooling preserving chamber are set to cooling compartment, and cooled object is subcooled in the interior than refrigerating chamber low temperature But.At this point, can see via top plate inside supercooling preserving chamber.
Therefore, the transparent component of the multi-disc plate of top plate is vacated interval in a manner of with gap and is configured.Due to having Gap, to realize the raising of heat-proof quality.
In addition, top plate has flange, for keeping the interval between transparent component.Moreover, becoming the line of heating device Heater is in flange internal stretch.By being formed as line heater, so as to be set in top plate with not breaking ring visuality significantly Set heating device.Moreover, realize prevent top plate moisture condensation, prevent freezing for the cooled object being stored near top plate.
Hereinafter, the figure with reference to described in attached drawing illustrates the embodiment of the utility model.In the various figures, to identical Or comparable part marks same reference numerals, and its explanation is suitably omitted or simplified.In addition, the knot described in for each figure For structure, shape, size and configuration etc. can suitably be changed in the scope of the utility model.In addition, explanation When the position relationship (such as upper and lower relation etc.) of each component parts in book is essentially that refrigerator 1 is configured to the state used Position relationship.Here, in the figure below including Fig. 1~Fig. 3, there are the size relationship of each component parts and shapes The situation different from physical unit such as shape.
Embodiment 1.
Fig. 1 is the front view of the appearance of the refrigerator 1 for the embodiment 1 for being schematically indicated the utility model.In addition, Fig. 2 is It is schematically indicated the internal structure of the structure in the refrigerator 1 including the first wind path 10 of the embodiment 1 of the utility model Figure.In addition, Fig. 3 is the knot in the refrigerator 1 including the second wind path 12 for the embodiment 1 for being schematically indicated the utility model The internal structure chart of structure.
[structure of refrigerator 1]
As shown in Figure 1, the refrigerator 1 of embodiment 1 has heat insulating box, front surface (front) opening of the heat insulating box is simultaneously It is formed with storage space in inside.Though heat insulating box omission illustrate in detail, be configured to include:Steely outer container, resin The interior case of system and the thermal insulation barriers in the space being filled between outer container and interior case.Wherein, as described later, in refrigerating chamber 2 and vegetable Thermal insulation barriers are not present between dish room 3.The storage space for being formed in the inside of heat insulating box is divided into preservation by multiple divided parts Multiple storerooms of cooled object.For example, as shown in Figure 1, for the refrigerator 1 of embodiment 1, as multiple storerooms, Have:It is configured at the refrigerating chamber 2 of top layer, the vegetable compartment 3 for the lower section for being configured at refrigerating chamber 2 and undermost freezing chamber 4. Here, the lower area in refrigerating chamber 2 is provided in the structure of vegetable compartment 3, the type and number of the storeroom that refrigerator 1 has Amount is not limited to above-mentioned.In addition, being illustrated below using cooled object as food.
As shown in Fig. 2, in the back side of refrigerator 1, as the example to carrying out cooling cooling device in each storeroom, if It is equipped with:Compressor 6 compresses simultaneously discharging refrigerant;Cooler 8, functions as evaporator, and is carried out to air cold But;And Air Blast fan 9, make the cold air movement generated in cooler 8.In addition, refrigerator 1 has the first wind path 10, this first Wind path 10 is the wind path for cold air flow, is provided with cooler 8 and Air Blast fan 9 etc..The refrigerant discharge side of compressor 6 with Condenser connection (not shown), refrigerant suction side is connect with cooler 8.Cooler 8 is functioned as evaporator, make by The air of the refrigerant of itself and the first wind path 10 carries out heat exchange to generate cold air.Compressor 6 and cooler 8 and condenser (not shown) and expansion cell (not shown) constitute refrigeration cycle together.Air Blast fan 9 via the first wind path 10 and to 4 cool-air feed of refrigerating chamber 2, vegetable compartment 3 and freezing chamber.
Downside to upside of first wind path 10 out of refrigerator 1 is longitudinally disposed in being formed in the inner wall panel of shell 50. In more detail, the first wind path 10 be set to refrigerating chamber 2, vegetable compartment 3 and freezing chamber 4 back side.First wind path 10 has: First wind path 10a, to 5 transporting cold-air of supercooling preserving chamber;With the first wind path 10b, to supercooling preserving chamber 5 other than it is cold Hide the space transporting cold-air in room 2.Moreover, being provided with windscreen 11a in the first wind path 10a.And it is provided in the first wind path 10b Windscreen 11b.Windscreen 11a adjusts the air quantity of the cold air by the first wind path 10a by changing aperture.In addition, windscreen 11b passes through Change aperture to adjust the air quantity of the cold air by the first wind path 10b.
By the action of refrigeration cycle, carries out the heat exchange with refrigerant and cooled cold air in cooler 8, borrow Air Blast fan 9 is helped to be supplied to storerooms such as refrigerating chamber 2, freezing chambers 4 by first wind path 10 at the back side of refrigerator 1.Such as Fig. 3 institutes Show, cooler 8 is back to by the second wind path 12 by the cold air of refrigerating chamber 2 etc., be cooled again and be transported to each storage Room.
In addition, refrigerator 1 has control device 100.Moreover, the temperature of each storeroom is passed by the temperature for being set to each storeroom Sensor (not shown) is detected.Control device 100 controls the various equipment in refrigerator 1, so that temperature sensor is examined The temperature of survey becomes the temperature set in each storeroom.For example, control device 100 is to being set to the windscreen of the first wind path 10a 11a and it is set to the aperture of windscreen 11b of the first wind path 10b, the output of compressor 6, the output of heater 16, Air Blast fan 9 air output etc. is controlled.
2 > of < refrigerating chambers
Refrigerating chamber 2 is set at refrigerating temperature zone (e.g., about 3~5 DEG C), stores the storeroom of food.Such as Fig. 2 institutes Show, refrigerating chamber 2 is provided with the shelf 21 etc. of mounting food etc..It is provided in the opening portion for the front surface for being formed in refrigerating chamber 2 It is opened and closed the door of rotary (such as the opposite opened) of the opening portion.Here, the door of refrigerating chamber 2 can not be opposite opened door, but it is single The rotary door of fan formula.In addition, inner wall panel becomes the rear wall in refrigerating chamber 2.Moreover, as shown in FIG. 2 and 3, implementing In the refrigerator 1 of mode 1, the lowest part of refrigerating chamber 2 is provided with supercooling preserving chamber 5.In space in refrigerating chamber 2, supercooling But preserving chamber 5 is demarcated by top plate 18 with other spaces.
Supercooling preserving chamber 5 be with than 2 low temperature of refrigerating chamber (for example, as food chill point (solidification point) it is below About 0~-3 DEG C of supercooling temperature) state that is, supercooling state, to preserve the storeroom of food.Therefore supercooling is protected Room 5 is deposited to be adapted for preserving the storeroom of the food such as meat, fish or their processed goods.Supercooling preserving chamber 5 is provided with receipts Receive container 14 and front surface wall 13.In addition, there is supercooling preserving chamber suction inlet 15, the mistake in the inboard of supercooling preserving chamber 5 Cooling preservation room suction inlet 15 guides the air in supercooling preserving chamber 5 to the second wind path 12.Here, under overlook observation, Supercooling preserving chamber suction inlet 15 and aftermentioned refrigerating chamber suction inlet 22 are overlapped at least partially.Therefore pass through supercooling preserving chamber The air of suction inlet 15 collaborates in the second wind path 12 with the air by refrigerating chamber suction inlet 22 and is back to cooler 8.Respectively From air be not back to cooler 8 respectively.In addition, having top plate 18 in supercooling preserving chamber 5, which can protect Hold the temperature lower than refrigerating chamber 2.
Accommodating container 14 is the container stored to the food for being stored in supercooling preserving chamber 5.Accommodating container 14 is for example It is the drawer that can be in the longitudinal direction moved along the guide rail (not shown) for the inside sidewalls for being set to supercooling preserving chamber 5 Formula container.Here, guide rail can also be located at the bottom wall of supercooling preserving chamber 5.In addition, guide rail can not also must be arranged.User Accommodating container 14 can be extracted out from supercooling preserving chamber 5, carry out being accommodated in storage appearance via the upper surface opening of accommodating container 14 The food of device 14 picks and places.As the material of accommodating container 14, such as can be same as the accommodating container of general refrigerator, it uses Polystyrene etc..But not limited to this.
The opening portion in the space on the front-surface side upper layer of supercooling preserving chamber 5 is provided with front surface wall 13, the front surface Wall 13 can pivotally be fixed on top plate 18.By extracting accommodating container 14 out, to the rotation of front surface wall 13 by door It opens.
Here, the temperature adjustment of refrigerating chamber 2, the aperture of windscreen 11b is controlled to being supplied in refrigerating chamber by control device 100 2 air quantity could be adjusted to carry out.In addition, the temperature adjustment of supercooling preserving chamber 5, by control device 100 by windscreen 11a Aperture control the output adjustment of aftermentioned heater 16 is adjusted and carried out to the air quantity for being supplied in supercooling preserving chamber 5 Come carry out.
3 > of < vegetable compartments
Vegetable compartment 3 is the storage of the set temperature refrigerating temperature zone higher than the temperature of refrigerating chamber 2 (for example, about 3~7 DEG C) Hide room.Vegetable compartment 3 is the space with for storing stock, and suitable for especially vegetables are refrigerated in food storage Room.As shown in FIG. 2 and 3, vegetable compartment 3 is set to the lower side of refrigerating chamber 2.Therefore vegetable compartment 3 is via aftermentioned boundary wall 7 And it is adjacent with supercooling preserving chamber 5.Vegetable compartment 3 is provided with drawer type door.Vegetable compartment 3 and ice are carried out by the opening and closing of this Opening between case 1 is outer and partition.
7 > of < boundary walls
As shown in Fig. 2, boundary wall 7 is disposed on the wall between vegetable compartment 3 and supercooling preserving chamber 5.Boundary wall 7 is to vegetables Room 3 is separated with supercooling preserving chamber 5.It is located in vegetable compartment 3 in the structure of the downside of boundary wall 7, there is no because coming from The heat transfer of cooling preservation room 5 and cooled situation.Therefore can not include thermal insulation barriers in boundary wall 7.In addition as shown in figure 3, There is boundary wall 7 refrigerating chamber suction inlet 22, the refrigerating chamber suction inlet 22 and the second wind path 12 directly to link, and will come from refrigerating chamber 2 Interior cold air is sucked into 12 side of the second wind path.Refrigerating chamber suction inlet 22 is formed in the inboard part as refrigerating chamber 2.
16 > of < heaters
As shown in FIG. 2 and 3, it is arranged in the boundary wall 7 of the lower section of supercooling preserving chamber 5 bearing supercooling preserving chamber 5 Having heaters 16.Heater 16 is that the heating mechanism (heating so that its heating is heated to the food in supercooling preserving chamber 5 Unit).Heater 16 uses to heat food, is used in the heating process that supercooling preserves processing.It is being subcooled But it in preservation processing, needs to prevent sub-cooled food and cause to freeze.Therefore in order to add to the food after sub-cooled Heat and heated using heater 16.Heater 16 is set to the lower section of supercooling preserving chamber 5, so as to efficiently heat Food in supercooling preserving chamber 5.
4 > of < freezing chambers
Freezing chamber 4 is set at the storeroom of the cryogenic temperature band (being, for example, -18 DEG C or less) less than 0 DEG C.Such as Fig. 2 And shown in Fig. 3, freezing chamber 4 is set to the downside of vegetable compartment 3, the food for storing freezing.Freezing chamber 4 is provided with drawer The door of formula.Opening between being carried out outside freezing chamber 4 and refrigerator 1 by the opening and closing of this and partition.
[maintenance about supercooling state]
Here, being illustrated to the temperature environment that the food in supercooling preserving chamber 5 is maintained to supercooling state.In order to Water is become into ice, the place for needing ice crystal to grow, is the ice-nucleus under small molecule rank.In cooled liquid, consider logical It crosses shaking and makes that the set of molecule is discrete to be repeated, and generate the elements collection (cluster) of all size.It is very small in cluster When, internal molecule is in the bonding state of ice, but the molecule on surface can not in conjunction with and it is unstable, therefore be detached from from cluster.
As long as cluster is no more than certain critical radius, then can not steadily exist, not become ice crystal.So even reaching solidifying Solid point is not hereinafter, cluster also starts to freeze.The state is supercooling state.If even if cluster more than critical radius generates one A, then it generates ice crystal as core, to which supercooling state is eliminated.If temperature reduces, supercooling state is eliminated general Rate increases.In addition, due to interference such as the impacts of physics, the shaking in liquid is also caused to become larger and generate the group of critical radius or more Cluster, to which supercooling state is eliminated.
Here, food is the mixture of substance, thus using them as karyogenesis ice crystal the case where is more.It is protected by food In the case of there are (such as 0 DEG C or less) below chill point, exist causes supercooling state to be eliminated because of certain factors such as impacts, To generate the possibility of ice crystal in food.If moreover, maintain supercooling state eliminate state unchangeably placed, The freeze lasts of food carry out, to caused by freezing cellular damage due to cause the quality of food to reduce.
Therefore, it in the refrigerator 1 of embodiment 1, controls low temperature process and heating process, the low temperature process will be in refrigerator Set temperature is set as the temperature lower than the chill point of food, and set temperature in refrigerator is set as than freezing by the heating process The high temperature of point.Moreover, adjusting the shelf space of food that is, the temperature environment in supercooling preserving chamber 5, do not give drastically Temperature reduction etc. is irritatingly cooled down, to which food is maintained supercooling state.Specifically, maintaining supercooling shape When state, " temperature range " of supercooling preserving chamber 5 is preferably the range of -4~0 [DEG C].In addition, when maintaining supercooling state, It is preferred that " Temperature Distribution " in supercooling preserving chamber 5 is homogenized.
[flowing about cold air]
Next, the flowing of the cold air using Fig. 2 and Fig. 3 to being manufactured by cooler 8 illustrates.Here, Fig. 2 and The arrow of Fig. 3 indicates the flowing of cold air.The cold air manufactured by cooler 8 is divided by Air Blast fan 9 is delivered to refrigerating chamber 2 The cold air of side and the cold air for being delivered to 4 side of freezing chamber.Towards refrigerating chamber 2 cold air by the first wind path 10 by by windscreen 11a with And 11b points of windscreen is:Cold air towards supercooling preserving chamber 5 and the cold air towards refrigerating chamber 2.Moreover, towards the cold of refrigerating chamber 2 Gas passes through on shelf 21, and declines from the top to the bottom and the second wind path 12 of direction in the front of refrigerating chamber 2.
Fig. 4 is the component centered on supercooling preserving chamber 5 in the refrigerator 1 for the embodiment 1 for indicating the utility model Deng position relationship figure.During Fig. 4 is with the section of the refrigerator 1 in the plane including Fig. 2 and Y-Z lines shown in Fig. 3 The heart and show.As shown in Fig. 2 and Fig. 4, towards the cold air of supercooling preserving chamber 5 from the blowout wind directly linked with windscreen 11a Road 17 is blown out.Gap of the part for the cold air of blowout between front surface wall 13 and top plate 18 is to the close of supercooling preserving chamber 5 The space of front side is discharged.The nearby cold air in the space of side is discharged to the cold air to come towards the lower section of refrigerating chamber 2 herein to collaborate, And pass through the gap of supercooling preserving chamber 5 and the downside of 2 bottom surface of refrigerating chamber.Then as shown in figure 3, from refrigerating chamber suction inlet 22 to Second wind path 12 flows out.The air of outflow is back to the first wind path 10.
As described above, the vegetable compartment 3 that and set temperature adjacent with supercooling preserving chamber 5 is higher than refrigerating chamber 2 is configured, to There is no situations cooled because of the heat transfer from vegetable compartment 3 in supercooling preserving chamber 5.Therefore for example will not as it is previous that Sample makes supercooling preserving chamber 5 be influenced by the temperature being cooled because of the heat transfer from adjacent freezing chamber 4 etc..As a result, mistake Cooling preservation room 5 will not be subcooled, and can reduce the heater 16 that the uses when supercooling of the food in supercooling preserving chamber 5 preserves Heating ability.Its result can reduce the electrified rate of heater 16, and in a manner of it can reduce the size of heater 16 It constitutes, it is thus possible to efficiently carry out supercooling preservation.
In addition, as Embodiment 1, adjacent with supercooling preserving chamber 5, but temperature is higher than supercooling preserving chamber 5 In the structure of vegetable compartment 3, there is no 5 situations cooled because of heat transfer of supercooling preserving chamber.Therefore boundary wall 7 can not include Thermal insulation barriers for preventing from conducting heat to supercooling preserving chamber 5, so as to cut down cost.
In addition, the temperature of boundary wall 7 declines unlike the temperature of supercooling preserving chamber 5, because the worry of water freezing may be not present. Furthermore it is possible to not consider the heat-proof quality of boundary wall 7, thus it is the boundary wall 7 without thermal insulation barriers, therefore can be by boundary wall 7 thickness local reduction.According to the feature of above structure, such as shown in FIG. 2 and 3, storage can be made in boundary wall 7 The water feeding tank 19 of ice.As a result, in the refrigerator 1 of embodiment 1, the previous indoor water feeding tank of refrigeration that is configured at is configured at side In boundary's wall 7, so as to increase the internal volume of the refrigerating chambers such as supercooling preserving chamber 52, the raising of convenience can be realized.
[about top plate 18]
Fig. 5 is the schematic diagram of the structure of top plate 18 possessed by the refrigerator 1 for the embodiment 1 for indicating the utility model.Separately Outside, Fig. 6 is top plate possessed by the refrigerator 1 of the embodiment 1 of the utility model from the upper surface side of supercooling preserving chamber 5 18 schematic diagram.Next, being illustrated to the structure of top plate 18 using Fig. 5 and Fig. 6.
As shown in figure 5, the multi-disc plate transparent component 24 of top plate 18 by it is opposed and vacate it is spaced in a manner of constituted.Thoroughly Bright component 24 such as with glass, resin for material.Become gap between transparent component 24.Even if the air of gap section is pushing up In the variation of heat at plate 18, it can also inhibit convection current etc. and maintain stationary state.Therefore there is higher heat-proof quality.? This, can not be gap on the whole between transparent component 24.Such as it can be provided with spacer (not shown), which is used for The interval between transparent component 24 is kept, durability is maintained.The gap section for being sealed with air is set as still air layer below 23.Here, being illustrated air as enclosed gas but it is also possible to be other transparent gases.
In addition, being equipped with resinous framework 27 around top plate 18.In order to top plate 18 is assembled into refrigerator 1, need by Around resinous framework 27 is installed on.At this point, top plate 18 is configured to:After vacating and being alternatively arranged by multiple transparent components 24, use It is sealed around rubber or silicon parts covering, and ensures leakproofness, so as to not flow into still air from external air Layer 23.Here, when being sealed, it can dehumidify etc., the air few to moisture is sealed.As long as in addition, tool There is extraneous air not flow into the closure of still air layer 23, then can be to be mounted directly resinous framework in stepped construction Structure.
The thickness T2 of still air layer 23 is preferably 3mm or less.If this is because the thickness of still air layer 23 be 3mm with On, then air is easy flowing, to which heat-proof quality caused by non-moving air reduces.Spy is not made to the thickness T1 of transparent component 24 It does not limit.But in the case where considering to actually use, if transparent component 24 is blocked up, the weight of top plate 18 is caused to increase.Cause The thickness T1 of this transparent component 24 is for example preferably 3mm or less.
Here, it is two layers of structure to be shown in FIG. 5 using three pieces transparent component 24, still air layer 23, but and it is unlimited Due to this.Such as still air layer 23 can be one layer, or three layers or more.
Top plate 18 is constituted as described above, even if can be from top plate 18 if thus the quantity of still air layer 23 increases The inside of upper side visual confirmation supercooling preserving chamber 5, to confirm the food for being accommodated in accommodating container 14.Top plate 18 as a result, Heat-proof quality can be than previous high heat-proof quality, it is thus possible to by increasing supercooling preserving chamber 5 in the height direction To expand internal volume.
[effect for the cooling that top plate 18 is brought]
Fig. 7 is supercooling in the case of top plate 18 possessed by the refrigerator 1 that indicates using the embodiment 1 of the utility model The figure of the cooling result of preserving chamber 5.As shown in fig. 7, the height of the existing structure without using the top plate 18 indicated in embodiment 1 Air themperature near the height 70mm of the top plate 18 of air themperature and use embodiment 1 near 20mm, becomes substantially phase Same cooling.It may thus be appreciated that using the superiority in the case of top plate 18 in short transverse.In addition, in the feelings using top plate 18 Under condition, the difference in air temperature at height 20mm and height 70mm is about within 1~1.5 DEG C, it is known that the temperature in short transverse Distribution situation is not also poor.
Temperature Distribution substantially in supercooling preserving chamber 5 needs to ensure consistency with short transverse in the horizontal direction.Water Square to temperature distributing characteristic mainly to 5 cool-air feed of supercooling preserving chamber blowout wind path 17 flow determine.It is another Aspect, the temperature distributing characteristic of short transverse by supercooling preserving chamber 5 heat-proof quality especially upper side heat-insulated determining.This Be because:Under normal circumstances, cold air is easy to rest on lower section, thus top is easy the shadow of the heat outside by cooling preservation room 5 It rings.
For example, there is such as lower structure in existing refrigerator:The indoor chilled room of refrigeration will be located at and be divided into the chilled room in upper layer With the chilled room of lower layer, and using the chilled room of lower layer as supercooling preserving chamber.This is supercooling preserving chamber and temperature ratio in order to prevent The structure of the high refrigerating chamber direct neighbor of supercooling preserving chamber.
Heat substantially transmits from high to lower, to ensure the equilibrium of heat (heat stream is concentrated to lower).Therefore The propagation of heat, which becomes temperature, will become uniform flowing.If refrigerating chamber and supercooling preserving chamber are neighbouring, refrigerating chamber side Heat is propagated to supercooling preserving chamber side, becomes the trend of the temperature rise of the upper area of supercooling preserving chamber.Therefore in mistake Temperature difference is generated between the lower area and upper area of cooling preservation room, it is difficult to ensure the consistent of the Temperature Distribution of short transverse Property.
Therefore, in the refrigerator 1 of embodiment 1, the heat-proof quality of the top plate 18 by strengthening supercooling preserving chamber 5 is come The intrusion for hindering the heat stream from 2 side of refrigerating chamber, in the temperature so as to inhibit the upper area of supercooling preserving chamber 5 It rises.It therefore, there is no need to as existing refrigerator, intermediate temperature region be set between refrigerating chamber and supercooling preserving chamber The chilled room in top.Thus, for example by using by as the spatial volume of a part for the chilled room in top be assigned as refrigerating chamber or The mode of the internal volume of supercooling preserving chamber etc. is allocated, and the internal volume for thus allowing for supercooling preserving chamber 5 expands.
Embodiment 2.
Fig. 8 is the schematic diagram of the structure of top plate 18 possessed by the refrigerator 1 for the embodiment 2 for indicating the utility model.Separately Outside, Fig. 9 is top plate possessed by the refrigerator 1 of the embodiment 2 of the utility model from the upper surface side of supercooling preserving chamber 5 18 schematic diagram.Next, being illustrated to the structure of the top plate 18 of embodiment 2 using Fig. 8 and Fig. 9.
As shown in figure 8, the top plate 18 of embodiment 2 is in still air layer 23 and as the static sky between transparent component 24 The part of gas-bearing formation 23 has vibrating part 26, becomes clathrate when the vibrating part 26 is from upper surface side.Though not limiting especially It is fixed, but in order to ensure visual and stability, the section of the vibrating part 26 of embodiment 2 is the shape of U-shaped.Moreover, Wired heater 25 is stored among vibrating part 26.Line heater 25 is same as heater 16, becomes to supercooling preserving chamber 5 Interior food is heated and makes the top plate heating device of temperature rise.Pass through the receipt of wire heater among vibrating part 26 25, visual constitute so as to will not significantly destroy from 18 top of top plate configures the top plate of wired heater 25 18。
The diameter phi of line heater 25 is 2~3mm or so.Moreover, the thickness of 26 entirety of vibrating part is preferably 5~7mm Left and right.In addition, being the layout line heater 25 at the vibrating part 26 of each still air layer 23 in fig. 8, but configure wired add The still air layer 23 of hot device 25 can be only one layer.
By the way that in 18 hookup wire heater 25 of top plate, thus the supporting capacity as heater 16, makes to preserve supercooling The food of room 5 carries out the heat supply in heating process and is possibly realized.Therefore, it is possible to reliably carry out preventing supercooling preserving chamber Food in 5 short transverse freezes, and can prevent from condensing in 18 private side transparent component 24 of top plate.
Here, in embodiment 2, the control of windscreen 11 and heater 16, line heater are passed through to control device 100 The case where 25 temperature controlled to control supercooling preserving chamber 5, is illustrated, and but not limited to this.For example, control dress Windscreen 11 can not also be controlled by only control line heater 25 by setting 100, be heated to supercooling preserving chamber 5.
In addition, the example that the heating equipment in supercooling preserving chamber 5 is line heater 25 is illustrated, but and it is unlimited Due to this.As long as can ensure visuality, such as can be heated with heat exchanger, Paar element etc..
Embodiment 3.
In addition, supercooling preserving chamber 5 can also be the negative temperature that can be switched to indoor temperature and be set as -3 DEG C or so The switching chamber of the refrigerating chamber of band, the chilled room of positive temperature band that indoor temperature is 1 DEG C or so etc..In this case, Neng Gouxuan The temperature band for selecting the food for being adapted for preserving, can realize the raising of the convenience of user.
In addition, in the supercooling preserving chamber 5 of the refrigerator 1 of above-mentioned embodiment 1 and embodiment 2, in supercooling But the cooled object of state is not to be only limited to food.Such as can also be raw meat of unedible toy etc. like that from nature The object of acquisition.Alternatively, it is also possible to as cloned animal etc., being the raw meat etc. of animal for research.Including can be with supercooling Whole cooled objects that state preserves.

Claims (9)

1. a kind of refrigerator, which is characterized in that have:
Refrigerating chamber is set to refrigerating temperature zone;
Supercooling preserving chamber is set to the indoor lower side of refrigeration, cooled object is cooled to lower than refrigerating temperature zone Solidification point supercooling temperature below;And
Top plate is consisted of by air seal between the transparent component of the opposed plate of multi-disc, and the top plate becomes described The upper surface of supercooling preserving chamber,
The top plate has top plate heating device.
2. refrigerator according to claim 1, which is characterized in that have:
Vegetable compartment, is configured at the downside of the refrigerating chamber, and is set with the temperature higher than the refrigerating chamber;
Boundary wall, to the vegetable compartment and between the supercooling preserving chamber of the refrigeration indoor lower side setting into Row separates;And
Heating device is set to the boundary wall, to being heated in the supercooling preserving chamber.
3. refrigerator according to claim 2, which is characterized in that
With refrigerating chamber suction inlet, the air of the refrigerating chamber is sucked,
In plan view, the refrigerating chamber suction inlet and Chong Die, the supercooling of supercooling preserving chamber suction inlet at least part But preserving chamber suction inlet sucks the air of the supercooling preserving chamber.
4. the refrigerator according to any one of claims 1 to 3, which is characterized in that
The supercooling preserving chamber can be switched to:The refrigerating chamber of the negative temperature band lower than the supercooling temperature or ratio The chilled room of the high positive temperature band of the supercooling temperature.
5. the refrigerator according to any one of claims 1 to 3, which is characterized in that
The top plate heating device is line heater.
6. refrigerator according to claim 2 or 3, which is characterized in that
It is accommodated with the water feeding tank of ice making in the boundary wall.
7. refrigerator according to claim 6, which is characterized in that
The top plate heating device is line heater.
8. refrigerator according to claim 6, which is characterized in that
The supercooling preserving chamber can be switched to:The refrigerating chamber of the negative temperature band lower than the supercooling temperature or ratio The chilled room of the high positive temperature band of the supercooling temperature.
9. refrigerator according to claim 8, which is characterized in that
The top plate heating device is line heater.
CN201820343294.1U 2017-04-10 2018-03-13 Refrigerator Active CN208059386U (en)

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SG11201906625TA (en) 2019-10-30
AU2017409203B2 (en) 2020-01-30
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JPWO2018189777A1 (en) 2019-11-07

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