EP2258995B1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

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Publication number
EP2258995B1
EP2258995B1 EP09720395.4A EP09720395A EP2258995B1 EP 2258995 B1 EP2258995 B1 EP 2258995B1 EP 09720395 A EP09720395 A EP 09720395A EP 2258995 B1 EP2258995 B1 EP 2258995B1
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EP
European Patent Office
Prior art keywords
food
cooling material
cooling
container
temperature
Prior art date
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Active
Application number
EP09720395.4A
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German (de)
English (en)
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EP2258995A1 (fr
EP2258995A4 (fr
Inventor
Masaaki c/o Panasonic Corporation TANAKA
Tadashi c/o Panasonic Corporation ADACHI
Yoshimasa c/o Panasonic Corporation HORIO
Mitoko c/o Panasonic Corporation ISHITA
Yukiko c/o Panasonic Corporation HIROTA
Osao c/o Panasonic Corporation KIDO
Toshiaki c/o Panasonic Corporation MAMEMOTO
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Panasonic Corp
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Panasonic Corp
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Publication date
Priority claimed from JP2008231735A external-priority patent/JP2010025530A/ja
Priority claimed from JP2008233215A external-priority patent/JP2010043825A/ja
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP2258995A1 publication Critical patent/EP2258995A1/fr
Publication of EP2258995A4 publication Critical patent/EP2258995A4/fr
Application granted granted Critical
Publication of EP2258995B1 publication Critical patent/EP2258995B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/006—Self-contained movable devices, e.g. domestic refrigerators with cold storage accumulators
    • 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
    • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
    • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
    • F25D2303/083—Devices using cold storage material, i.e. ice or other freezable liquid using cold storage material disposed in closed wall forming part of a container for products to be cooled
    • F25D2303/0831—Devices using cold storage material, i.e. ice or other freezable liquid using cold storage material disposed in closed wall forming part of a container for products to be cooled the liquid is disposed in the space between the walls of the container
    • 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
    • F25D2331/812—Trays
    • 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
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

Definitions

  • the present invention relates to a refrigerator capable of improving a preservation of a freshness of frozen foods.
  • German Patent Application Publication 199 07 184 which is patent document 1 discloses a refrigerator according to the preamble of claim 1.
  • this document discloses a refrigeration device having a plurality of freezer compartments which are extractable from a body of the refrigeration device.
  • the freezer compartments have at least one container which is used to hold ice packs.
  • the period of the cooling down of the ice packs is used primarily for maintaining the intended freezer temperature during a power failure of the device over a certain period of time and thus to extend the warm up time the freezer compartment as compared to a freezer which is not equipped with ice packs.
  • the cooled down ice packs have a function of serving as cooling elements for being transported in a cool bag for cooling beverages or food in the bag.
  • holding means for holding the ice packs is provided in a receiving space of the container.
  • Fig. 17 is a cross sectional side view of primary parts of a conventional refrigerator in one embodiment as described in Japanese Patent Application Publication No. 2000-304435 , which is the patent document 2.
  • freezing room 8 which is a part of storage rooms of refrigerator main body 2 composed by thermally insulated box body 1, is partitioned from refrigerating room 7 and vegetable room 9 having different temperature ranges by upper thermally insulating partition 5 at an upper part and lower thermally insulating partition 6 at a lower part thereof.
  • partition 11 that partitions the opening to an upper part and lower part thereof is arranged.
  • cooled air generation room 12 arranged behind freezing room 8 includes evaporator 13 for generating a cooled air and fan 14 for providing and circulating the cooled air to refrigerating room 7, freezing room 8, and vegetable room 9, and in a space below evaporator 13, defrosting heater 15 that is turned on upon defrosting is arranged.
  • Door 21 and lower door 22 are both drawer-type doors of freezing room 8, and behind them are container 27 and lower container 28 supported by frame bodies 24, 25 respectively and arranged integrally. Moreover, behind freezing room 8 is cooled air distributing room 30 that distributes the cooled air generated by evaporator 13 to respective rooms, and at a front side thereof, a plurality of cooled air providing opening is formed.
  • trays 31 are arranged respectively, and in each of container 27 and lower container 28, cooled air passage 27a, 28a is formed between the front and rear thereof.
  • cooled air providing openings 30a, 30b opening toward upper opening planes of container 27 and lower container 28 cooled air providing opening 30c corresponding to cooled air passage 27a of container 27 as well as cooled air providing opening 30d corresponding to cooled air passage 28a of lower container 28 are arranged.
  • the cooled air from cooled air distributing room 30 can directly be circulated not only to container 27 but also to cooled air passage 28a of lower container 28, and a cooling speed of foods can thereby be increased.
  • container 27 storing the food is pulled out to an outside in connection with door 21; thus, there are advantages such as obtaining easy view of the stored foods, being able to take out and put in the food very easily, and the like.
  • tray 31 is immediately warmed due to tray 31 not having a cooling function; although the food itself is cooled, other foods are warmed by the temperature transmitted thereto via tray 31, and a possibility of melting of a surface of a freeze-stored food and a procreation of bacteria whose activity had been suppressed is concerned.
  • a degree of the melting of the surface of the stored food is large, degradation in the quality in being frozen again is concerned.
  • the foods and tray 31 itself need to be cooled due to warmed tray 31, and thus the speed of cooling the foods becomes slow, and the quality of freezing is degraded.
  • the frozen foods stored in the upper part of cooled air passage 27a are not cooled, are exposed to an external air, and a temperature thereof is raised; along with this, since air inside freezing room 8 is stirred, and a ventilation of the external air and the cooled air within freezing room 8 becomes active, the cooling after having closed door 21 takes much time, and a time during which the frozen foods experience a temperature exceeding a predetermined temperature of freezing room 8 is elongated. Due to this, there is the possibility of the surfaces of the frozen foods being melted, and the bacteria whose activity had been suppressed being procreated. Especially, as the degree of the melting of the surfaces of the stored foods is larger, parts to be frozen again after having closed door 21 becomes larger, and the degradation in the quality becomes more severe.
  • the temperature inside container 27 raises due to an inflow of the external air accompanied in opening door 21 upon the input, and the cooling after having closed door 21 also takes time to cool to the predetermined temperature, and thereby the freezing time of the put-in food is elongated.
  • the present invention attends to the aforementioned problem of the conventional technique, and aims to provide a refrigerator that realizes to suppress a raise in a temperature caused by putting in a food, maintain a storing quality of stored foods, and maintain an effect of shortening a freezing speed.
  • the inventive refrigerator includes a refrigerator main body having a storage room which is configured such that the storage room is thermally insulated; a door through which food is placed in and removed from the storage room; a container which extends from a refrigerator main body when the door is opened; and a cooling material attached to the container.
  • the container is provided with fixing means configured to fix the cooling material.
  • the container comprises a front side section which is located on a door side of the container and a rear side section which is located on a rear side of the container.
  • the cooling material is provided in the front side section of the container and has a food placing surface on which the food is placed.
  • the container is also provided with food retaining means which are configured to prevent the food from moving to a place other than the food placing surface.
  • the heat load caused by the inflow of the external air and a heat load of the put-in food are absorbed by the cooling material even before closing the door, and as such, the food is cooled and the inside of the container is kept at a low temperature compared to the conventional technique, and the food can be cooled in a short period of time and a preserving capability of freshness can be improved.
  • a refrigerator of the present invention includes a refrigerator main body having a storage room defined such that the room is thermally insulated; a door through which food is placed in and removed from the storage room; a container for holding the food; a cooling promoting member attached to at least one of the containers and having a cooling function; and a plurality of cooling means for cooling the cooling promoting member and the storage room.
  • the refrigerator of the present invention is able to suppress the raise in the temperature upon the input of the food, secure the storing quality of the stored food, and maintain the effect of shortening the freezing speed.
  • the refrigerator of the present invention includes a refrigerator main body having a storage room defined such that the room is thermally insulated; a door through which food is placed in and removed from the storage room; a container extending from an outer body of the storage room at the time of opening the door; and a cooling material attached to the container; thus, in addition to being able to maintain a storage capability of the foods, upon extending out of the container in connection to opening the door, a raise in a temperature of the food stored under a low temperature of the container kept by the cooling material can be suppressed, and along with this, a heat load caused by the put-in food or a flown-in external air is absorbed by the cooling material and be cooled thereby, and the food can be cooled in a short period of time.
  • the refrigerator of the present invention has the cooling material attached to the door side of the container, and thus, in addition to being able to maintain a storage capability of the foods, suppress the warming of the stored food and shorten the cooling time upon the input of a food, the cooling material is exposed to the external air at a timing earlier than any other parts upon opening the door and left exposed to the external air longer than any other parts in closing of the door; due to the cooling material being attached on the door side that is most affected by the external air and has the largest heat load, the suppression of the warming of the stored food and the shortening of the cooling time upon the input of the food are further enabled.
  • the cooling material is positioned on a front side, the food can be stored in a vicinity of the cooling material without extending an entirety of the container out to an outer body and rapidly freeze thereby, the inflow of the external air into the container can be suppressed, and the storing of the food is enabled easily.
  • the refrigerator of the present invention has a detachable structure of the cooling material, thus, in addition to being able to maintain the storage capability of the foods, suppress the warming of the stored food and shorten the cooling time upon the input of the food, cleaning can be performed easily, and a diversion to other use is possible. Moreover, in a case of using the cooling material under a minus temperature, even if a hand makes contact with the cooling material and adheres thereto when storing foods with a wet hand and the like, the cooling material can be taken out, and a process to separate the hand and the cooling material e.g. by heating can easily be performed.
  • the refrigerator of the present invention has at least a part of the container having the cooling material at a height from 600 mm to 1200mm from a mounting surface of the refrigerator main body; due to being the storage room that is at the height from 600 mm to 1200mm from the mounting surface , which is a height at which a user can most conveniently put in and take out a food, in the storage room that possibly is opened and closed at a high frequency, while being able to maintain the storage capability of the foods, suppress the warming of the stored food after having opened and closed the door, and shorten the cooling time upon the input of the food, the preserving capability of freshness of the food can further be improved.
  • the cooling material is positioned at a height to which hands of many can easily reach, a detachment and attachment of the cooling material can be performed easily, and in the case where it adheres to the hand and become inseparable, many people can easily relieve the situation.
  • the cooling material is positioned on an upper surface of a bottom part of the container, and the food can be cooled by a direct contact therewith; thus, it is further possible to maintain the storage capability of the foods, suppress the warming of the stored food and shorten the cooling time upon the input of the food.
  • the refrigerator of the present invention is a refrigerator that includes a fixing module or fixing means, respectively, for fixing the cooling material, and a food retaining module or food retaining means, respectively, for retaining the food such that the food does not move to places other than a food placing surface; it is possible to maintain the conventional storage capability of the foods, suppress the warming of the food, upon the extending out of the container due to the opening of the door, that is stored under the low temperature of the container being kept by the cooling material, and cool the food with a short period of time due to the cooling by absorbing heat of the heat load from the put-in food and the flown-in external air with the cooling material.
  • the fixing module is composed by a part of components of the container; in addition to being able to maintain the conventional storage capability of the foods, suppress the warming of the stored food, and shorten the cooling time upon the input of the food, it is possible to include a fixing module or a food retaining module having a higher hardness compared to ones formed separately by realizing the fixing module and the food retaining module with simple structures.
  • the refrigerator of the present invention is a refrigerator in which a heat accumulating material primarily exists as the cooling material and includes the food placing surface for placing the foods thereon, and an absorption part that absorbs a change in a volume that accompanies a phase transformation of the heat accumulating material; thus, when the door is opened, the heat load due to the external air flowing in is absorbed by the cooling material, thereby, the raise in the temperature of the food stored under the low temperature of the container kept by the cooling material can be suppressed, and the suppression of the quality degradation is possible.
  • the cooling material absorbs the heat load of the flown-in external air and the heat load of the put-in food even before closing the door, the food is cooled and the inside of the storage room is maintained at a low temperature compared to the conventional technique, the food can be cooled in a short period of time, and the improvement in the preservation of freshness becomes possible. Moreover, a space for absorbing the change in the volume that becomes an obstacle for heat transmission does not exist, and thus the heat is transmitted smoothly. Further, since the food placing surface is prone to withstanding an influence of the change in the volume due to the phase transformation of the heat accumulating material, a deformation accompanying the change in the volume is reduced, and the contact with the food is maintained. Due to this, the warming of the food can further be suppressed, and the shortening of the cooling time upon the input of the food is possible.
  • the absorption part projects upward than the food placing surface; in addition to being able to suppress the warming of the stored food and shorten the cooling time upon the input of the food, the stored food is prevented from slipping off of the food placing surface by a repulse of the opening and closing operation of the door.
  • the warming of the stored food can further be suppressed, and the cooling time upon the input of the food can further be shortened.
  • Fig. 1 and Fig. 2 are cross sectional side views of primary parts of a refrigerator for better understanding of the present invention.
  • freezing room 108 that is a part of a storage room of refrigerator main body 102 that is composed by thermally insulated box body 101 is partitioned by upper and lower thermally insulating partitions 105 from refrigerating room 107 and vegetable room 109 having different temperature ranges.
  • partition 111 that partitions the opening into the top and the bottom is arranged.
  • Cooled air generation room 112 arranged on a rear side of freezing room 108 is disposed with evaporator 113 that generates the cooled air, and fan 114 that supplies and circulates the cooled air to refrigerating room 107, freezing room 108, and vegetable room 109.
  • defrosting heater 115 that is turned on upon defrosting is arranged.
  • containers 127 and 128 which are drawer type storage rooms are configured in two room levels being above and below one another, and at front sides thereof, doors 121 and 122 for taking out and putting in foods from and into the storage room are fixed respectively.
  • Cooling material 150 which is the cooling member having the cooling function is disposed on recess 160 that is arranged at an inner bottom part of container 127 located on the upper side on door 121 side. This recess functions as the fixing module for fixing the cooling material.
  • Container 127 extends out from the outer body when door 121 on the upper side is opened so as to take out and put in food from and into the storage room.
  • cooling material 150 does not easily move to the rear side of container 127 due to an inertia generated by container 127 moving at a relatively high speed in the front and rear direction upon opening and closing door 121. That is, in the container of freezing room 108 that is the storage room including cooling material 150, a front side section located on door 121 side is used as a storage region having cooling material 150, and a section located on the rear side can be distinctly used as a storing part that is a general freezing region that does not include cooling material 150.
  • an upper surface of cooling material 150 provided in freezing room 108 is arranged above caster 151 provided on a lower surface of thermally insulated box body 101 so that refrigerator main body 102 can easily be moved and vegetable room 109 that is the storage room arranged below freezing room 108, and is at a position having a height of 800 mm from ground surface 152.
  • a latent heat of cooling material 150 is lower than a freezing temperature of a general food to be frozen, and lower than a temperature in a maximum ice crystal generating range; by setting a freezing point temperature of cooling material 150 as above, the cooling speed when a food is placed in cooling material 150 can be improved to its maximum.
  • cooling material 150 cannot be sufficiently frozen, and if the coolant provided in cooling material 150 transforms from solid to liquid, its cooling ability significantly decreases.
  • it is made of a material having the latent heat of -15°C, which is a temperature higher than a temperature of freezing room 108 in a general household refrigerator, such that the cooling material can be sufficiently frozen in freezing room 108.
  • this cooling material 150 is configured to have a width of 300 mm, a depth of 300 mm, and a thickness which becomes a height of 20 mm.
  • an optimized amount is set with considerations to a quantity of heat held by a presumed food.
  • the filling within cooling material 150 preferably has a quantity of heat having a quantity of heat corresponding to a quantity of an external temperature corresponding to a mass of the foods to be placed on the upper surface, e.g., a sum of the quantity of latent heat and a quantity of detectable heat from 30°C to -10°C.
  • cooling material 150 when cooling material 150 is frozen, a complete melting does not occur upon the input of a food in general, i.e., even in a case where a high-temperature food from outside is disposed in contact on cooling material 150, a rapid cooling is carried out by cooling material 150 being frozen without melting.
  • Freezing room discharge opening 153 is a discharge opening for the cooled air for cooling freezing room 108 to be discharged
  • freezing room exhaust port 154 is an exhaust port for the cooled air having cooled freezing room 108 to be returned to evaporator 113 from freezing room 108.
  • Supply duct 155 is a duct through which the cooled air for cooling refrigerating room 107 circulates.
  • the foods stored in container 127 provided with cooling material 150 include frozen food 157 that is already stored and put-in food 158 that is newly put in onto cooling material 150.
  • cooled air supplies and circulations for cooling refrigerating room 107 and vegetable room 109 are not depicted.
  • Cooling material 150 and frozen food 157 are cooled to a predetermined temperature of freezing room 108, which is -20°C and frozen. As shown in Fig. 1 , when door 121 is opened and put-in food 158 is placed on the upper surface of cooling material 150, the cooling of put-in food 158 is started immediately from after the input by a heat thereof being taken away by cooling material 150 frozen at -20°C. Further, the external air that had flown into container 127 along with the opening and closing of the door for putting the food in is also cooled by cooling material 150; an air inside container 127 is maintained at a low temperature compared to the conventional technique, and by this low temperature air also, put-in food 158 is cooled.
  • the front side section located on door 121 side can be used as the storage region having cooling material 150, and the section located on the rear side can be distinctly used as the storing part that is a general freezing region that does not include cooling material 150.
  • a detecting module not depicted determines that door 121 has been closed, and an operation of a freezing cycle (not shown in the figures) is started.
  • fan 114 is driven, and the cooling is started by circulation of the cooled air.
  • the cooled air is supplied to freezing room 108 from freezing room discharge opening 153, and cools frozen food 157 and put-in food 158.
  • frozen food 157 is cooled by both of an indirect cooling by the cooled air flowing in the periphery thereof and a direct cooling by cooling material 150 from its lower surface.
  • cooling put-in food 158 a part of the cooled air is also used to cool cooling material 150.
  • the cooling of freezing room 108 is performed when it is higher than the predetermined temperature of -20°C, thus, a temperature difference with the latent heat temperature of -15°C of cooling material 150 being small, the cooled air is used mainly for cooling the foods.
  • the cooled air having been supplied from freezing room discharge opening 153 to freezing room 108 flows through the inside of container 127.
  • frozen food 157 that is positioned to a upper stream side of an air passage for the low-temperature cooled air having been discharged from freezing room discharge opening 153 and put-in food 158 placed on the upper surface of cooling material 150 that is positioned to a lower stream side of the air passage are cooled.
  • frozen food 157 and put-in food 158 get closer to the latent heat temperature of -15°C of cooling material 150, a temperature difference between frozen food 157 as well as put-in food 158 and the cooled air becomes similar to the temperature difference between the cooled air and cooling material 150; and a weight of the cooled air being used to cool cooling material 150 is increased.
  • frozen food 157 and put-in food 158 are e.g.
  • cooling material 150 at a position that is exposed to the external air at the timing earlier than any other parts upon opening the door and left exposed to the external air longer than any other parts in closing of the door, the warming of frozen food 157 can further be suppressed, and the cooling time for put-in food 158 can further be shortened. Further, due to the cooling material being attached on the front side, the foods can be stored in a vicinity of the cooling material without extending an entirety of the container out to the outer body, the inflow of the external air into the container can be suppressed, and the storing of the food is enabled easily.
  • cooling material 150 has a structure that can easily be detached from or attached to container 127, and thus cleaning is easy, and can be divertedly used for other purposes. Moreover, when put-in food 158 is to be stored using a wet hand, if the hand makes contact with the cooling material and adheres thereto, cooling material 150 as a whole can be taken out, and the process to separate the hand and cooling material 150 e.g. by heating can easily be performed.
  • cooling material 150 due to configuring at least a part of the container including cooling material 150 comes to be at a height to which a woman can reach by her hand without having have to bend over, the height from the set surface is around 800 mm to which it is assumed that hands of many can easily reach,. At the same time, cooling material 150 is similarly positioned at the height of 800 mm from the set surface, thus attachment and detachment of cooling material 150 becomes possible, and thus can easily be processed when cooling material 150 adheres to the hand and becomes impossible to separate.
  • At least a part of the container including cooling material 150 comes to be at the height of 800 mm, however, generally, since a range from 600 mm to 1200 mm is believed to be the most convenient position, it is preferable to make adjustment within this range.
  • cooling material 150 has the width and depth of 300 mm, the height dimension of 20 mm is small; even with identical amount of the coolant inside the cooling material, a set surface area of the foods increases; even with identical amount of the coolant inside the cooling material, a contacting area of the foods increases; while being able to maintain a storage capability of the foods, the warming of the stored foods can be suppressed, and the cooling time upon the input of the food can be shortened.
  • a large quantity of frozen food 157 and put-in food 158 can be stored, and a large-sized frozen food 157 and put-in food 158 can be stored.
  • the contacting area between frozen food 157 and put-in food 158 and cooling material 150 becomes large, further suppression of the warming and shortening of the cooling time becomes possible.
  • the cooling material is used as the cooling member having the cooling function, however, a cooling plate having a thickness of more than or equal to 5 mm and being made of metal can be applied so long as it includes the cooling function.
  • door 121 is of the drawer type, compared to a rotating door, the low-temperature cooled air cannot easily be released from the upper plane of the container. The suppression of the warming of frozen food 157 and the shortening of the cooling time for put-in food 158 are possible.
  • Fig. 3A shows a cross sectional view of primary parts of a refrigerator of a first embodiment of the present invention
  • Fig. 3B is a perspective view of a container having a cooling material of the first embodiment of the present invention
  • Fig. 3C is a perspective view of the cooling material of the first embodiment of the present invention
  • Fig. 3D is a cross sectional view along a 3D-3D direction of the cooling material of the first embodiment of the present invention
  • Fig. 4 is a cross sectional side view of the refrigerator of the first embodiment of the present invention.
  • cooling material 150 which is the cooling member having the cooling function is disposed on the inner bottom part, i.e. on an upper surface of the bottom surface, on door 121 side of container 127 located on the upper side of the two room level structure in freezing room 108 which is the storage room.
  • the fixing module for restricting the movement of cooling material 150 is recess 160, and this recess 160 is formed integral with container 127 as being a part of a resin material that is a constituent of container 127.
  • recess 160 is arranged such that cooling material 150 that is arranged on door 121 side that is on the front side of container 127 is not moved toward the rear side by the inertia generated by the opening and closing operations of door 121.
  • Food retaining module 161 is arranged on food placing surface 162 for placing the foods on the upper surface of cooling material 150, and has a shape that is protruding at least to the rear side of cooling material 150, i.e. to an opposite side of door 121 side, toward the upper direction than food placing surface 162. Due to this, put-in food 158 placed on food placing surface 162 of cooling material 150 is restricted from moving toward the rear side storing unit or storing part 163 over beyond cooling material 150 by the inertia generated by the opening and closing operations of door 121.
  • food retaining module 161 may not only be arranged at the rear side of cooling material 150, but may alternatively be arranged at each of four sides so as to surround food placing surface 162, and in the first embodiment, food retaining module 161 is consecutively arranged along an outer periphery of food placing surface 162.
  • the front side section positioned toward door 121 side is distinctively used as the storage region having cooling material 150
  • the section positioned toward the rear side (back side) beyond the storage region is distinctively used as storing part 163 that is the general region that is not provided with cooling material 150.
  • border 127a between food retaining module 161 provided in the storage region with the cooling material and storing part 163 that is the general freezing region without the cooling material is formed smoothly via inclined part 127b.
  • Border section 127a and inclined part 127b are both parts of constituents of the container, and are formed integrally so as to strengthen the hardness, and this border 127a is also the fixing module that prevents the movement of cooling material 150 in cooperation with recess 160.
  • Cooling material 150 is capable of being attached and detached, and at the front side of recess 160 of container 127, includes attachment and detachment auxiliary part 170 that is formed with a recessed part to which the user's finger can be inserted upon attaching or detaching cooling material 150, and attachment and detachment holder 171 formed with a recessed part at the back side of the container opposite to this attachment and detachment auxiliary part 170. These are provided respectively for cooling material 150, and engage with cooling material attachment and detachment auxiliary part 172 formed with a recessed part and cooling material attachment and detachment holder 173 formed with a protruding part.
  • this cooling material attachment and detachment auxiliary part 172 is composed by an injecting section through which a cooling liquid is injected into an outer body container of the cooling material.
  • a line 3D-3D that connects this cooling material attachment and detachment auxiliary part 172 and cooling material attachment and detachment holder 173 extends through a center line of a cooling material with respect to its left and right direction.
  • cooling material 150 constituted by freezing room 108 is provided at the lower surface of thermally insulated box body 101, and is positioned at the height of 800 mm from ground surface 152 by caster 151 for enabling refrigerator main body 102 to move easily and vegetable room 109 that is the storage room arranged below freezing room 108.
  • cooling material 150 is composed of a material having the latent heat of -15°C, which is a temperature that is lower than the freezing temperature of a general food to be frozen, lower than a temperature in the maximum ice crystal generating range, and higher than the temperature of freezing room 108, and has a width of 300 mm, a depth of 300 mm, and a thickness which becomes a height of 20 mm.
  • the filling within cooling material 150 preferably has the quantity of heat having a quantity of heat corresponding to a quantity of an external temperature corresponding to a mass of the foods to be placed on the upper surface, e.g., a sum of the quantity of latent heat and a quantity of detectable heat from 30°C to -10°C. That is, when cooling material 150 is frozen, a complete melting in a normal use does not occur upon the input of the food in general.
  • Freezing room discharge opening 153 is a discharge opening for the cooled air for cooling freezing room 108 to be discharged
  • freezing room exhaust port 154 is an exhaust port through which the cooled air having cooled freezing room 108 is returned to evaporator 113 from freezing room 108.
  • Supply duct 155 is a duct for the cooled air for cooling refrigerating room 107 to flow through.
  • horizontal height 163a of storing part 163 of the freezing region in which frozen food 157 is stored in container 127 horizontal height 162a of food placement part 162 of the freezing region in which put-in food 158 is stored is arranged at a higher position.
  • the cooled air supplies and circulations for the cooling of refrigerating room 107 and vegetable room 109 are not depicted, however, the cooled air supplies and circulations are performed by a cooled air passage that is different from the cooled air passage for cooling the freezing room.
  • Cooling material 150 and frozen food 157 are cooled to the predetermined temperature of freezing room 108, which is -20°C and frozen. As shown in the figures, when door 121 is opened and put-in food 158 is placed on food placing surface 162 of cooling material 150, the cooling of put-in food 158 is started immediately from after the input by the heat thereof being taken away by cooling material 150 frozen at -20°C. Further, the external air that had flown into container 127 is also cooled by cooling material 150; the air inside container 127 is maintained at a low temperature compared to the conventional technique, and by this low temperature air also, put-in food 158 is cooled.
  • cooling material 150 cools frozen food 157, and cooling material 150 cools the external air flowing into container 127, and the periphery of frozen food 157 is maintained at a low temperature compared to the conventional technique. Moreover, the warming due to the thermal interference from put-in food 158 can be suppressed compared to the conventional technique.
  • the detecting module not depicted determines that door 121 has been closed, and the operation of the freezing cycle not shown in the figures is started; at a same time as the refrigerant flows in evaporator 113 and the cooled air is generated, fan 114 is driven, and the cooling is started by the circulation of the cooled air.
  • the cooled air is supplied to freezing room 108 from freezing room discharge opening 153, and cools frozen food 157 and put-in food 158.
  • frozen food 157 and put-in food 158 are cooled by both of the cooled air flowing in the periphery thereof and cooling material 150 from their lower surface. A part of the cooled air is also used to cool cooling material 150.
  • the cooling of freezing room 108 is performed when it is higher than the predetermined temperature of -20°C, thus, the temperature difference with the latent heat temperature of -15°C of cooling material 150 being small, the cooled air is used mainly for cooling the foods. Moreover, the cooled air flows through the inside of container 127 by an air-flow structure not shown in the figures. At this occasion, frozen food 157 and put-in food 158 are placed on food placing surface 162 of cooling material 150 and cover thereof, thus, frozen food 157 and put-in food 158 are primarily cooled. Here, as frozen food 157 and put-in food 158 get closer to the latent heat temperature of -15°C of cooling material 150, the weight of the cooled air being used to cool cooling material 150 is increased.
  • frozen food 157 and put-in food 158 are e.g. fish or meat
  • their freezing temperature is around 0°C
  • their maximum ice crystal generating range is in most cases in between 0°C to -10°C, and in this temperature range, the majority of the cooled air cools frozen food 157 and put-in food 158.
  • the maximum ice crystal generating range is quickly passed over.
  • cooling material 150 has a large heat capacity, a part of moisture in the external air accompanied by the inflow of the external air by the opening and closing of door 121 condenses or forms frost on cooling material 150.
  • a dehumidified low-temperature air is again circulated in the periphery of cooling material 150 and thereby removes moisture from cooling material 150; by such circulation of the cooled air during the cooling operation, the moisture and frosts that had adhered to the surface of cooling material 150 are removed.
  • cooling material 150 makes contact with border 127a that is the fixing module, and frozen food 157 and put-in food 158 makes contact with food retaining module 161.
  • cooling material 150 is prevented from moving toward rear storing part 163 by border 127a that is the fixing module, and frozen food 157 and put-in food 158 are prevented by food retaining module 161 of cooling material 150 moving from food placing surface 162 to storing part 163, and it stops at a position above food placing surface 162. Moreover, the movements of cooling material 150, frozen food 157 and put-in food 158 toward the front side are all prevented by a front side wall of container 127.
  • food retaining module 161 is arranged on food placing surface 162 for placing the food on the upper surface of cooling material 150, and has a shape that projects upward than food placing surface 162 at the opposite side of door 121 side, which is on the rear side of cooling material 150. Due to this, put-in food 158 placed on food placing surface 162 of cooling material 150 is prevented from moving to storing part 163 that is the storing part located in the rear side of cooling material 150 by the opening and closing operation of door 121.
  • food retaining module 161 is arranged at each of four sides so as to surround food placing surface 162, and in the first embodiment, food retaining module 161 is consecutively arranged along the outer periphery of food placing surface 162; and by having the outer body formed with resin as in the first embodiment, in a case where the food placing surface has a small coefficient of friction and have a structure in which the food is easily slipped and the food is slipped to multi-direction with the opening and closing of the drawer, by having food retaining module 161 formed at all of the four sides of the food placement part, the movement of put-in food 158 by its slippage can be suppressed, and even if there is the repulse of the opening and closing of door 121, the heat of put-in food 158 can be absorbed by cooling material 150 efficiently, and the suppression of the warming and the shortening of cooling time upon the input of the food are possible.
  • cooling material 150 arranged in container 127 is easily exposed to the external air, the condensation and frost-forming on cooling material 150 becomes significant, and the possibility of the food slippage is increased; thus, the effect of preventing the slippage of foods by border 127a, recess 160, and food retaining module 161 which are fixing modules of the first embodiment are especially effective.
  • border 127a between food retaining module 161 provided in the storage region with the cooling material and storing part 163 that is the general freezing region without the cooling material is formed smoothly via inclined part 127b; in other words, it does not form a right-angle step in the general freezing region section, and thus, a drag in the air passage in the flowing direction of the cooled air from the rear surface side can be decreased, and the cooled air can be flown smoothly to the storage region having cooling material 150 on the lower stream thereof.
  • horizontal height 162a of food placement part 162 of the storing region in which put-in food 158 is stored is arranged at the higher position. Due to this, even when put-in food 158 to be inputted onto the food placing surface is a food having a relatively high temperature, a warm air does not flow downward but flows upward, thus, in a case where the warm air is generated above the food placing surface, the warm air can be prevented from flowing at least to horizontal height 163a of the storage surface of storing part 163, and the thermal influence to frozen food 157 stored in storing part 163 of the freezing region from put-in food 158 can further be decreased.
  • cooling material 150 is capable of being attached and detached, and at recess 160, includes attachment and detachment auxiliary part 170 that is formed with the recessed part to which the user's finger can be inserted upon attaching or detaching cooling material 150, and attachment and detachment holder 171 formed with the recessed part at the container on the opposite side of this attachment and detachment auxiliary part 170.
  • attachment and detachment auxiliary part 172 formed with the recessed part formed in cooling material 150 and cooling material attachment and detachment holder 173 formed with the protruding part respectively, and can be used satisfactorily upon the attachment and detachment, and a positioning in the attachment can surely be performed.
  • cooling material 150 in a state where cooling material 150 is attached to recess 160, by attachment and detachment auxiliary part 170 and cooling material attachment and detachment auxiliary part 172 on a container 127 side being communicated by their recessed shapes, the user can insert his or her finger therein, and the convenience in the usage is thereby improved.
  • cooling material attachment and detachment holder 173 being inserted within attachment and detachment holder 171 arranged on container 127 side, the positioning in attaching the cooling material can surely be made, and in the case of detaching the cooling material also, these attachment and detachment holder s become a fulcrum points so that the cooling material can be detached easily; the convenience in the usage is thereby improved.
  • this cooling material attachment and detachment auxiliary part 172 is composed by the injecting section through which the cooling liquid is injected into the outer body container of the cooling material, thus, cooling material attachment and detachment auxiliary part 172 is formed by even more reasonable configuration.
  • the line 3D-3D that connects this cooling material attachment and detachment auxiliary part 172 and cooling material attachment and detachment holder 173 extends through the center line of the cooling material with respect to its left and right direction, the cooling material can be attached and detached without having its weight biased toward either the left or the right, thus, a smoother feeling in the attachment and detachment can be provided to the user.
  • the arranged height of cooling material 150 arranged in container 127 of door 121 is 800 mm, and thus, the position of door 121 is also located around 800 mm; due to door 121 being located within 500 mm to 1200 mm which is a height at which a person in general can relatively operate easily, a man-oriented force can easily be applied, and the repulse accompanied in opening and closing door 121 may become large, thus, the effect of preventing a food slippage by border 127a, recess 160, and food retaining module 161, which are fixing modules of the first embodiment, is especially effective.
  • cooling material attachment and detachment holder 173 is provided in attachment and detachment holder 171, however, both of these may not necessarily be provided; in accordance with the needs of the user and structures of the storage rooms and cooling material 150, e.g., an application of attachment and detachment auxiliary part 170 that is the supplemental structure for inserting a finger and cooling material attachment and detachment auxiliary part 172 being limitedly formed may limitedly be made, and as the retaining structure for ensuring smoother attachment and detachment, an application of arranging only cooling material attachment/detachment holder 173 in attachment and detachment holder 171 may limitedly be made.
  • attachment and detachment auxiliary part 170 on container 127 side and cooling material attachment and detachment auxiliary part 172 on cooling material 150 side had been used, however, e.g., an attachment and detachment assisting structure in which the finger can easily be caught only by cooling material 150 may be provided, and the attachment and detachment thereof may be smoothed.
  • cooling material attachment and detachment holder 173 having the protruding part structure on the cooling material side is arranged in attachment and detachment holder 171 having the recessed part structure on container 127 side, however, so long as these members are engaged by the protrusion and the recess, it is not limited to the aforementioned combination.
  • Fig. 5 shows a cross sectional side view of primary parts of a refrigerator of the embodiment for a better understanding of the present invention.
  • the height of projection 156 on the freezing region side to which cooling material 150 is not provided i.e. the rear surface side of cooling material 150 of recess 160, is configured higher than food placing surface 162 of cooling material 150, and in addition to the function as the fixing module, it also has the function as food retaining module 161 for suppressing the movement of the foods placed on cooling material 150.
  • frozen food 157 and put-in food 158 run into projection 156 that projects more toward the upper side than food placing surface 162, and remain placed on food placing surface 162 without having to move to storing part 163.
  • projection 156 that is the fixing module is a part of the bottom surface of the resin of container 127 being protruded upward, it may e.g. be integrally molded in the resin molding of container 127, thus, it is possible to include the fixing module and the food retaining module having a high hardness by the simple structure and the integral molding.
  • Fig. 6A is a cross sectional side view of primary parts of a refrigerator of an embodiment for a better understanding of the present invention
  • Fig. 6B is a perspective view of a container including a cooling material of the embodiment for a better understanding of the present invention
  • Fig. 6C is a perspective view of the cooling material of the embodiment for a better understanding of the present invention
  • Fig. 6D is a cross sectional view along a 6D-6D direction of the cooling material of the embodiment for a better understanding of the present invention
  • Fig. 7 is a cross sectional side view of the primary parts of the refrigerator in the embodiment for a better understanding of the present invention
  • Fig. 8 is a cross sectional side view of the primary parts of the embodiment for a better understanding of the present invention.
  • cooling material 150 which is the cooling member having the cooling function is disposed on door 121 side of the inner bottom part of container 127 located on the upper side of freezing room 108 that is composed by two room levels.
  • projection 156 which is a fixing module for preventing cooling material 150 to move in connection with the opening and closing of the door is provided.
  • Protruding section 156 aims to prevent the movement in the front and rear direction, which is the opening and closing direction of door 121, and as such, it is formed such that its longitudinal direction becomes the left and right direction, which is perpendicular to the opening and closing direction of door 121.
  • the resin casing of cooling material 150 includes a relatively flat food placing surface 259 for placing foods on the upper surface thereof, and absorption part 260 that projects upward in the periphery of food placing surface 259 while surrounding food placing surface 259.
  • This absorption part 260 has the function as the food retaining module that suppresses the movement of the foods placed on cooling material 150.
  • the food placing surface includes marker 259a that is a center of a placement part for placing food, and in marker 259a, at a rear side than a center line 6D-6D in the front and rear direction that is the opening and closing direction of the drawer of the food placing surface, marker center 259b that is a center part of marker 259a is positioned.
  • noncontact detecting module 280 such as an infrared sensor is provided, and this noncontact detecting module is provided at a position facing the food placing surface. That is, marker 259a is provided at the rear side on the center line 6D-6D in the front and rear direction that is the opening and closing direction of the drawer of the food placing surface, and noncontact detecting module 280 is positioned on a projected plane in the up and down direction of this center line 6D-6D. That is, marker center 259b that is the center part of marker 259a and noncontact detecting module 280 coincide with each other along a projected line in the up and down direction.
  • An inner space of absorption part 260 which is the food retaining module contains gas 258 at an upper side, and has a capacity that can store a majority of gas 258 within the inside of absorption part 260 even in a case where cooling material 150 is tilted for 5°. Due to this, in a case where cooling material 150 is horizontally arranged with an inclination within 5° with respect to the horizontal direction, gas 258 does not exist below food placing surface 259, and a majority thereof is filled with the cooling material (may also be referred to as heat accumulating material, "coolant" hereinbelow) 257.
  • a part of gas 258 that is generated inside cooling material 150 in forming the food retaining module is proficiently used, and a reasonable structure of forming the food retaining module is realized.
  • cooling material 150 is capable of being attached and detached, and includes attachment/detachment auxiliary part 170 that is formed with the recessed part to which the user's finger can be inserted upon attaching or detaching cooling material 150, and attachment and detachment holder 171 formed with the recessed part at the container on the opposite side of this attachment and detachment auxiliary part 170.
  • attachment and detachment auxiliary part 172 formed with the recessed part formed in cooling material 150 and cooling material attachment and detachment holder 173 formed with the protruding part respectively, and can be used satisfactorily upon the attachment and detachment, and the positioning in the attachment can surely be performed.
  • cooling material 150 in the state where cooling material 150 is attached to recess 160, by attachment and detachment auxiliary part 170 and cooling material attachment and detachment auxiliary part 172 on container 127 side being communicated by their recessed shapes, the user can insert his or her finger therein, and the convenience in the usage is thereby improved.
  • cooling material attachment and detachment holder 173 being inserted within attachment and detachment holder 171 arranged on container 127 side, the positioning in attaching the cooling material can surely be made, and in the case of detaching the cooling material also, these attachment and detachment holder s become the fulcrum points so that the cooling material can be detached easily; and the convenience in the usage is thereby improved.
  • attachment and detachment auxiliary part 170 and cooling material attachment and detachment auxiliary part 172 having this part to which the user's finger can be inserted are arranged such that they are arranged on the right side when the user opens the storage room provided with cooling material 150. That is, due to attachment and detachment auxiliary part 170 and cooling material attachment and detachment auxiliary part 172 being arranged on the right side, a structure in which an operation by a general right-handed user in attaching or detaching cooling material 150 can be further smoothed and the taking out is made easier is realized.
  • the finger of the user does not adhere to the cooling member upon the attachment and detachment, and a structure in which the operation in attaching or detaching cooling material 150 is made safer and smoother, and the taking out is made easier is realized.
  • this cooling material attachment and detachment auxiliary part 172 is composed by the injecting section used when the cooling liquid is injected into the outer body container of the cooling material, thus, cooling material attachment and detachment auxiliary part 172 is formed by even more reasonable configuration.
  • the line 6C-6C that connects this cooling material attachment and detachment auxiliary part 172 and cooling material attachment and detachment holder 173 extends through the center line of the cooling material with respect to its front and rear direction, the cooling material can be attached and detached without having its weight biased toward either the front or the rear, thus, a smoother feeling in the attachment and detachment can be provided to the user.
  • the height dimension to the top surface of cooling material 150 constituted by freezing room 108 is set to be 800 mm above from ground surface 152 by caster 151 for enabling refrigerator main body 102 arranged at the lower surface of thermally insulated box body 101 to move easily and vegetable room 109 arranged below freezing room 108.
  • Freezing room discharge opening 153 is the discharge opening from which the cooled air for cooling freezing room 108 is discharged
  • freezing room exhaust port 154 is the exhaust port for the cooled air having cooled freezing room 108 returns from freezing room 108 to evaporator 113.
  • Supply duct 155 is the duct for the cooled air for cooling refrigerating room 107 is to pass through.
  • Cooling material 150 is arranged at the bottom of container 127, the front surface of cooling material 150 is arranged to make contact with a front inner surface of container 127 on door 121 side, the rear surface of cooling material 150 is arranged to make contact with a front surface of projection 156 that is the fixing module protruding from the bottom part of container 127, and thereby is fixed so as not to move in the front and rear direction.
  • coolant 257 and gas 258 exist within the air-tight resin casing.
  • Gas 258 is air.
  • the resin casing is a blow molded product made of polyethylene having an outer dimension of a width of 300 mm, a depth of 300 mm, a height of 20 mm, and a thickness of 1.5 mm.
  • Coolant 257 is a material that has the latent heat of -15°C, which is lower than the freezing temperature of the general food to be frozen, lower than the temperature in the maximum ice crystal generating range, and higher than the temperature of freezing room 108.
  • Its quantity of filling is the amount corresponding to the mass of the foods to be placed on the upper surface, e.g., having the quantity of heat having the quantity of latent heat corresponding to the sum of the quantity of the latent heat and the quantity of detectable heat from 30°C to -10°C. Therefore, when cooling material 150 is frozen, the complete melting does not occur upon the input of the food in general.
  • Container 127 includes storing part 263 that is the general storage space, i.e. the freezing region at behind projection 156.
  • container 127 frozen food 157 that already had been stored and put-in food 158 that has newly been input are placed.
  • the cooled air supplies and circulations for the cooling of refrigerating room 107 and vegetable room 109 are not depicted, they are constituted by a cooled air passage that is different from the cooled air supply passage that cools the storage room having the cooling material and being capable of being set in the freezing temperature range.
  • Cooling material 150 and frozen food 157 are cooled to and frozen at -20°C, which is the predetermined temperature for freezing room 108.
  • -20°C which is the predetermined temperature for freezing room 108.
  • FIG. 6A when door 121 is opened and put-in food 158 of 5°C corresponding to the refrigerating temperature is placed on food placing surface 259 of cooling material 150, from immediately after the input, the heat of put-in food 158 is taken away by cooling material 150 of -20°C, and the cooling thereof is started.
  • cooling material 150 is warmed to -15°C from -20°C that is a detectable heat range due to the heat absorption, and a part thereof is melted while having a temperature difference with put-in food 158 at -15°C that is a latent heat range.
  • cooling material 150 the external air that had flown into container 127 is also cooled by cooling material 150, and the air inside container 127 is maintained at a lower temperature than in the conventional technique, and even by this low-temperature air, put-in food 158 is cooled.
  • coolant 257 of cooling material 150 is warmed to -15°C from -20°C that is the detectable heat range due to the heat absorption, and a part thereof is melted while having an appropriate temperature difference in -15°C that is the latent heat range so as to perform heat exchange with put-in food 158 and the flown-in external air.
  • the temperature difference is curtailed as the heat exchange is progressed by the lowering of the temperature of put-in food 158 due to its cooling and the warming of the cooling material, and takes time until put-in food 158 is cooled to the predetermined temperature, however, in the embodiment for a better understanding of the present invention, by using cooling material 150 having the latent heat temperature of -15°C, a large temperature difference can be secured during the heat exchange to about -10°C, which becomes the maximum ice crystal generating range that relates to the freezing quality of put-in food 158, and the maximum ice crystal generating range can be quickly passed over. Moreover, since the latent heat temperature is higher than the freezing room temperature of -20°C, a heat exchange temperature difference that is required for freezing cooling material 150 can be secured.
  • cooling material 150 cools the external air that flows into container 127, and the periphery of frozen food 157 is maintained at a lower temperature compared to the conventional technique. Moreover, the thermal interference from put-in food 158 can be suppressed compared to the conventional technique.
  • the temperature of put-in food 158 is detected by noncontact detecting module 280 such as the infrared sensor, etc., and if it is over a certain temperature, it is determined that a rapid freezing should be performed, and the operation of the freezing cycle (not depicted) is started; at the same time as the refrigerant flows in evaporator 113 and the cooled air is generated, fan 114 is driven, and the cooling is started by the circulation of the cooled air.
  • the temperature of put-in food 158 is detected by noncontact detecting module 280, and when it is over the certain temperature, the operation of the rapid freezing is automatically started.
  • the cooled air is supplied from freezing room discharge opening 153 to freezing room 108, and rapidly cools frozen food 157 and put-in food 158.
  • put-in food 158 is cooled by both the flowing cooled air and the cooling from food placing surface 259 of cooling material 150. Due to this, even when put-in food 158 with a relatively high temperature is put in, by performing the rapid freezing automatically and quickly, the thermal influence to frozen food 157 that already had been stored can be prevented; and as a result, the temperature of entire container 127 of the freezing room is prevented from affecting other parts.
  • a freezing load on the refrigerator as a whole is rapidly decreased, it becomes possible to realize an energy-saving and high-quality freezing preservation.
  • a part of the cooled air is used to cool cooling material 150.
  • the cooling of freezing room 108 is performed in the case of being higher than -20°C, which is the predetermined temperature, the temperature difference with the latent heat temperature of -15°C of cooling material 150 is small; thus, the cooled air is mainly used for the cooling of the foods.
  • the flow of the cooled air is circulated in container 127 via the air-flow structure not shown in the figures. At this occasion, frozen food 157 and put-in food 158 are placed on food placing surface 259 of cooling material 150 and cover thereof, thus, frozen food 157 and put-in food 158 are primarily cooled.
  • frozen food 157 and put-in food 158 get closer to the latent heat temperature of -15°C of cooling material 150, the weight of the cooled air being used to cool cooling material 150 is increased.
  • frozen food 157 and put-in food 158 are e.g. fish or meat
  • their freezing temperature is around 0°C
  • their maximum ice crystal generating range is in most cases in between 0°C to -10°C, and in this temperature range, the majority of the cooled air cools frozen food 157 and put-in food 158.
  • the maximum ice crystal generating range is quickly passed over.
  • a part of the moisture in the external air accompanied by the inflow of the external air by the opening and closing of door 121 condenses or forms frost on cooling material 150.
  • the dehumidified low-temperature air is again circulated in the periphery of cooling material 150 and thereby removes the moisture from cooling material 150; by such circulation of the cooled air during the cooling operation, the moisture and frosts that had adhered to the surface of cooling material 150 are removed.
  • cooling material 150 is not moved for being fixed by projection 156 of container 127, which is the fixing module.
  • projection 156 that is the fixing module for preventing cooling material 150 to move in connection with the opening and closing of the door aims to prevent the movement in the front and rear direction, which is the opening and closing direction of door 121, and as such, it is formed such that its longitudinal direction becomes the left and right direction, which is perpendicular to the opening and closing direction of door 121. Hence, the movement of cooling material 150 in connection with the opening and closing of door 121 can surely be suppressed.
  • frozen food 157 and put-in food 158 run into protruding absorption part 260 of cooling material 150, the movement from food placing surface 259 to storing part 263 on the rear side can be prevented thereby, and can be efficiently cooled on food placing surface 259.
  • the food placing surface includes marker 259a that is the center of the placement part for placing food, and in marker 259a, at a rear side than the center line 6C-6C in the front and rear direction that is the opening and closing direction of the drawer of the food placing surface, marker center 259b that is the center part of marker 259a is positioned. Even if put-in food 158 is moved by the inertia accompanying a stuck of the drawer, when put-in food 158 that was in the vicinity of marker center 259b is moved, it encourages put-in food 158 to be positioned within the food placing surface.
  • cooling material 150 frozen food 157, and put-in food 158 toward the front is prevented by the front side wall of container 127.
  • the movement of frozen food 157 and put-in food 158 due to slipping can be suppressed, and even if there is repulse due to the opening and closing of door 121, the heat of frozen food 157 and put-in food 158 is efficiently absorbed by cooling material 150, and the suppression of the warming of frozen food 157 and the shortening of the cooling time for put-in food 158 are possible.
  • attachment and detachment auxiliary part 170 and cooling material attachment and detachment auxiliary part 172 which are the part to which the finger of the user is to be inserted are arranged on the right side when the user opens the storage room provided with cooling material 150. That is, due to attachment and detachment auxiliary part 170 and cooling material attachment and detachment auxiliary part 172 being arranged on the right side, it is in the structure that the operation by the general right-handed user in attaching or detaching cooling material 150 can be further smoothed and the taking out is made easier. Attachable and detachable cooling material 150 realizing a universal design that further takes into consideration the convenience of the user can be provided.
  • coolant 257 of cooling material 150 in a state where coolant 257 of cooling material 150 is completely melted, e.g., just after purchase or by a long-term stoppage of power supply, a liquid surface thereof is positioned at absorption part 260 that is positioned above food placing surface 259. Thereafter, by cooling, coolant 257 freezes with expansion in its volume. This expansion in the volume is absorbed by gas 258 inside absorption part 260 and coolant 257 freezes with its liquid surface raising, it becomes difficult for gas 258 for absorbing the expansion that becomes a hindrance to heat conduction to exist in food placing surface 259. Furthermore, since a deformation of food placing surface 259 due to the freezing expansion is decreased, and the contact with frozen food 157 and put-in food 158 can be maintained satisfactorily.
  • absorption part 260 is for absorbing a volume change that accompanies a phase transformation of the heat accumulating material. Due to this, frozen food 157 and put-in food 158 are cooled efficiently, and the suppression of the warming of frozen food 157 and the shortening of the cooling time upon the input of a food are possible.
  • cooling material 150 arranged in container 127 is easily exposed to the external air, and the condensation and frost-forming on cooling material 150 becomes significant, and the possibility of the food slippage is increased.
  • absorption part 260 of the embodiment for a better understanding of the present invention is especially effective therefor.
  • the arranged height of cooling material 150 arranged in container 127 of door 121 is 800 mm, and thus, the position of door 121 is also located around 800 mm; due to door 121 being located within 500 mm to 1200 mm which is the height at which a person in general can relatively operate easily, the man-oriented force can easily be applied, and the repulse accompanied in opening and closing door 121 may become large, thus, the effect of preventing the food slippage by absorption part 260 of the embodiment for a better understanding of the present invention is especially effective.
  • noncontact detecting module 280 is positioned at the position facing marker 259a, however, even if they do not coincide with each other, so long as noncontact detecting module 280 is positioned on one of projected planes in the up and down direction of the center line 6D-6D, detecting by noncontact detecting module 280 can surely be performed even if the food is moved upon opening and closing the door.
  • the noncontact detecting module is provided at the center part of the food placing surface, and marker 259a is provided at the rear side of the food placement part; such configuration is preferable, because in the state where the door is closed, noncontact detecting module 280 is positioned to the front side in the front and rear direction than the center part 259b of marker 259a, hence, even if put-in food 158 is moved by the inertia accompanying the stuck of the drawer, due to the forward movement of put-in food 158 which was placed near marker center 259b already having been assumed, put-in food 158 will be positioned within an accurate detecting scope of noncontact detecting module 280, and the temperature detecting of put-in food 158 can be performed with even higher accuracy.
  • FIG. 9A is a side sectional view of a main part of a refrigerator in an embodiment for a better understanding of the present invention.
  • FIG. 9B is a perspective view of a cooling material in the embodiment for a better understanding of the present invention.
  • FIG. 9C is a side view taken along 9C-9C of the cooling material in the embodiment for a better understanding of the present invention.
  • FIG. 10 is a diagram of comparison between freezing time in quick freezing and freezing time in freezing in other ways in the embodiment for a better understanding of the present invention.
  • freezing room 303 as a part of a storage room of refrigerator main body 302 constructed by thermally insulated box body 301 is defined from a refrigerating room 306 and vegetable room 307 having different temperature zones by an upper insulating partition 304 on the upper side and a lower insulating partition 305 on the lower side.
  • An opening in the front face of freezing room 303 is provided with a partition 308 connecting the right and left ends of the opening.
  • a cold air generating room 309 provided at the rear face of freezing room 303, an evaporator 310 for generating cold air and a fan 311 for supplying and circulating the cold air to refrigerating room 306, freezing room 303, and vegetable room 307 are placed.
  • a heater 312 for defrosting which is energized at the time of defrosting is disposed.
  • a cold air distributing room 319 is provided on the rear side of freezing room 303, and cold air discharge ports 321 and 322 are provided so as to be continued from cold air distributing room 319.
  • Cold air discharge port 321 or 322 serves as a discharge port of the cold air supplied from evaporator 310 via the shortest path.
  • An opening in the front face of freezing room 303 is provided with doors 323 and 324 by which freezing room 303 is closed so that the cold air does not flow from freezing room 303.
  • Each of doors 323 and 324 is a drawer-type door. In the case of taking food in and out, doors 323 and 324 are used to be pulled to the front side of the refrigerator, that is, to the left direction in FIG. 9A .
  • frame members 325 and 326 are provided, respectively.
  • upper container 327 and lower container 328 are put, respectively.
  • Cooling promoting member 329 is placed on the bottom of upper container 327.
  • Cooling promoting member 329 is a cooling material 329a, and its melting temperature is generally set to -15 °C which is rather lower than the freezing temperature of food to be frozen, lower than the temperature of the zone of maximum ice crystal formation, and higher than the temperature of freezing room 303.
  • the filling amount of cooling material 329a is set to an amount at which cooling material 329a does not completely melt even in the case where food is input and placed on cooling material 329a.
  • Outer skin of the cooling material 329a is formed of a metal having high thermal conductivity and high corrosion resistance, such as aluminum.
  • a bubble pool 329c for removing air included in an outline container of cooling material 329a from food placement part 329b as a face on which food and cooling material 329a are in contact is provided.
  • bubble pool 329c is positioned on the upper side of food placement part 329b in the vertical direction (gravity direction)
  • a coolant 329d in cooling material 329a moves downward due to the gravity force
  • air included in the outline container of cooling material 329a moves to bubble pool 329c positioned on the upper side. Consequently, the coolant is reliably in contact with the inner face of food placement part 329b, so that the thermal conduction efficiency of food placement part 329b can be further enhanced.
  • uppermost part 329da of coolant 329d in the case where cooling material 329a is mounted horizontally and frozen is positioned above at least inner face side 329ba of the outer container of the cooling material of food placement part 329b.
  • cooling material 329a is detachable, and has a cooling material attachment and detachment auxiliary part 372 formed as a recess in cooling material 329a in which a finger of the user can be inserted at the time of attaching and detaching cooling material 329a to and from the container and a cooling material attachment and detachment holder 373 formed as a projection. Attachment and detachment holder 373 engages with the recess formed in the container side, thereby enabling attachment and detachment and positioning of the cooling material to be performed with reliability. For example, when the user attaches/detaches cooling material 329a, bubble pool 329 can be always positioned on the upper side by the positioning of cooling material 329a. Therefore, coolant 329d is reliably in contact with almost the entire inner face of food placement part 329b, so that the thermal conductivity of food placement part 329b can be further enhanced.
  • cooling material attachment/detachment auxiliary part 372 is formed as an injection part used at the time of injecting coolant 329d as a cooling solution into the outline container of the cooling material.
  • the line 9C-9C connecting cooling material attachment and detachment auxiliary part 372 and cooling material attachment and detachment holder 373 extends on a center line in the horizontal direction of the cooling material.
  • Bubble pool 329c has the function of food holding means for holding food so that the food does not go out from food placement part 329b.
  • the food holding means is provided continuously along the four sides so as to surround the outer periphery of food placement part 329b.
  • cooling material 329a is made of resin and forms the outline as in the embodiment for a better understanding of the present invention, even if the food slides in multiple directions as the drawer door is opened or closed, since the food holding means is formed in all of the four sides of the food placement part, movement due to sliding of the food itself is suppressed. Even when there is a repulse of opening or closing of the door or the like, heat of the put-in food is efficiently absorbed by the cooling material, and suppression of temperature rise and shortening of cooling time when food is put is possible.
  • a cold air suction port 330 for sucking cold air and guiding it to evaporator 310 is provided.
  • Food items 331 are put on cooling material 329a and stored by a hand of the user.
  • Freezing room 303 is cooled to predetermined temperature by the cold air discharged into freezing room 303 and, simultaneously, cooling material 329a is also cooled. At this time, the temperature of freezing room 303 is adjusted to a temperature at which food can be frozen and stored for a certain period, for example, -20 °C. Cooling material 329a whose melting temperature is set to -15 °C which is higher than the setting temperature of the storage room by about 5 °C is used. Consequently, freezing room 303 is sufficiently cooled and, after lapse of predetermined time, cooling material 329a is completely frozen.
  • Cold air which cooled the inside of the freezing room 303 enters cold air generating room 309 from cold air suction port 330 and is cooled again by evaporator 310.
  • the user performs operation of pulling door 323 to the front side of the refrigerator, that is, to the left side in FIG. 9A . Since frame member 325 is fixed to door 323, accompanying the operation of pulling door 323, frame member 325, upper container 327 mounted on frame member 325, and cooling material 329a mounted on the bottom of upper container 327 are simultaneously pulled. The user performs an operation of placing food 331 on cooling material 329a and closing door 323.
  • Cold air discharge port 321 is disposed above upper container 327, and cold air is discharged from cold air discharge port 321 toward the opening in the top face of upper container 327.
  • Food 331 stored on cooling material 329a is cooled by heat transfer of the cold air discharged from cold air discharge port 321 and, simultaneously, the heat is also directly taken from cooling material 329a itself. That is, by performing the cooling by combination of heat conduction and heat transfer, as compared with the case where only upper container 327 is provided without cooling material 329a, food 331 can be frozen at higher speed in energy-saving manner.
  • cooling material 329a which directly cooled food 331 can be cooled from downward by cold air discharge port 322, cold air as cooling means is cooled by low-temperature cold air discharged from the plurality of discharge ports; cold air discharge port 321 positioned above food placement part 329b, and cold air discharge port 322 positioned below cooling material 329a. Conselquently, even in the case where the temperature of cooling material 329a rises or cooling material 329a melts when food having relatively high temperature is put on cooling material 329a, the capability of quickly cooling the food can be recovered and the cooling capacity can be maintained.
  • the cold air cooled to low temperature by evaporator 310 is directly supplied to cold air discharge ports 321 and 322.
  • Cold air discharge port 322 serves as a discharge port of cold air supplied via the shortest path from evaporator 310
  • cold air discharge port 321 serves as a discharge port of the second-shortest path from evaporator 310.
  • cooling is performed by the plurality of cooling means of the low-temperature cold air from cold air discharge port 321 as cooling means and the low-temperature cold air from cold air discharge port 322. Moreover, the cooling is performed more quickly by cooling material 329a as a cooling promoting member.
  • the storage rooms are positioned on the upper and lower sides of freezing room 303 in which quick cooling is performed in the zone of maximum ice crystal formation.
  • the configuration as compared with a refrigerator having a storage configuration such that freezing room 303 whose upper or lower part is in contact to the outside via a thermal insulator is positioned in the uppermost or lowermost part, also in the case where the cold air of quick cooling is leaked by thermal conduction via a thermally insulated wall, the cold air of the quick cooling is used to cool the storage rooms such as refrigerating room 306 or vegetable room 307. Therefore, energy saving can be realized in the entire refrigerator.
  • cooling material 329a as cooling promoting member 329, the temperature of the face which is in contact with food can be arbitrarily set by selecting a cooling material, and the cooling maintenance temperature can be arbitrarily selected in accordance with storage environment temperature.
  • the melting temperature of cooling material 329a is generally set to -15 °C as a temperature which is lower than the freezing temperature of food 331 to be frozen, lower than the temperature of the zone of maximum ice crystal formation, and higher than the temperature of freezing room 303 by about 5°C, so that cooling material 329a can be frozen with reliability.
  • the latent heat of the highest cooling maintenance capability of cooling material 329a can be used to cool food and, generally, the temperature difference from put-in food of around room temperature can be increased. Therefore, the heat conductivity between cooling material 329a and food can be improved, and the speed of freezing food 331 can be improved.
  • the food cooling speed is improved by cooling material 329a as the cooling promoting member and, further, cooling material 329a is cooled by the low-temperature cold air directly supplied from evaporator 310 from above and below.
  • cooling speed comparable to that of an industrial refrigerator whose freezing temperature is -60 °C which cannot be conventionally realized by a general household refrigerator can be obtained.
  • FIG. 10 is a diagram showing comparison of freezing time between the quick cooling in the embodiment for a better understanding of the present invention and the freezing of other methods.
  • a test object is lean tuna fish of 200g, having a thickness of 2 cm and wrapped.
  • the object on a cooling material (-15 °C freezing, 810g, and outer skin thickness of 1.3 mm) is quickly frozen by cold air always supplied from above and below by the novel refrigeration as the method of the embodiment for a better understanding of the present invention.
  • the object on an aluminum plate is quickly frozen by cold air always supplied from above.
  • the object on the aluminum plate is quickly frozen (1TFC upper quick-freezing space at 25 °C) by the cold air always supplied from above, frozen at -60 °C, and put in a chest freezer of Yasuda Denki Co., Ltd. as an industrial refrigerator.
  • the cooling speed of the "novel refrigeration" in which the cooling material as the configuration of the embodiment for a better understanding of the present invention is used and the cold air as the cooling means is supplied from both above and below the time from the time point when the temperature of food reaches 0 °C to the time point when the temperature reaches -5 °C as a temperature in the zone of maximum ice crystal formation was 60 minutes. It is the half of 120 minutes of the normal freezing, and 3/5 of 100 minutes of the conventional quick freezing. The speed is largely improved, and the cooling speed is comparable to or slightly higher than that of an industrial refrigerator having a freezing temperature of -60 °C which is the same as that of a general industrial freezer.
  • a household refrigerator can realize cooling speed comparable to that of an industrial refrigerator whose freezing temperature is -60 °C, and can perform quick cooling with saved energy.
  • conspicuous effects are obtained in a practical configuration and an energy consumption amount.
  • FIGS. 11A to 11C The qualities of food as a result of realizing the cooling speed comparable to that of an industrial refrigerator as the freezing temperature of -60 °C by a household refrigerator as described above are compared by FIGS. 11A to 11C .
  • FIGS. 11A, 11B, and 11C are SEM pictures of cells of the tuna used in the above-described experiment.
  • FIG. 11A shows the cells frozen at -60 °C by a Yasuda chest freezer as an industrial refrigerator.
  • FIG. 11B shows the cells frozen by cold air always supplied from above and below on the cooling material (frozen at -15 °C, 810g, and outer skin thickness of 1.3 mm).
  • FIG. 11C is the cells frozen by cold air always supplied from above on the plate so as to adjust to the freezing temperature setting from normal freezing.
  • the invention produces a wonderful practical effect that freezing quality can be improved to a degree almost comparable to that of an industrial refrigerator of -60 °C as described above, by a simpler refrigerator configuration with reduced energy consumption.
  • FIGS. 12A, 12B, and 12C show experimental results in the case of cooling just-cooked rice by the quick cooling with the configuration of the embodiment for a better understanding of the present invention.
  • FIG. 12A shows time required for the quick freezing.
  • FIG. 12B shows a result of sensory evaluation by comparison of taste between just-cooked rice and rice frozen by the quick freezing.
  • FIG. 12C shows a result of comparison of water content between just-cooked rice and rice frozen by the quick freezing.
  • test object is rice of 170g (volume:70 mm x 80 mm x 35 mm), wrapped, and stored for seven days.
  • the object is cooled from both upper and lower faces on a cooling material like in the embodiment for a better understanding of the present invention.
  • the object is put in at 40 °C, wrapped, naturally cooled until the core temperature becomes 40 °C (outside temperature 25 °C) and, after that, quickly frozen on the cooling material.
  • wrapped just-cooked rice of 70 °C is put in and after that, quickly frozen on a cooling material.
  • the rice frozen by the above-described method is stored for seven days and, after that, thawed by being warmed in a microwave at 600W for three minutes.
  • heat-transfer speed q h (coefficient of heat transfer), A (contact area), ⁇ t (temperature difference).
  • h and A coefficient of heat transfer
  • ⁇ t temperature difference
  • the temperature difference between food 331 and cooling material 329a is the cause of changing the heat transfer speed.
  • a cooling material having a latent heat of melting higher than the temperature of freezing room 303 by five degrees is selected.
  • the cooling material of the cooling material In the case of selecting a cooling material of the cooling material, if the cooling material melts due to input of food having high temperature, the cooling efficiency largely deteriorates. Consequently, in a household refrigerator used in a standard home, it is conventionally difficult to select a cooling material having latent heat of melting higher than the temperature of freezing room 303 by five degrees due to deterioration in quality in the case where the cooling material melts.
  • the cooling material having a melting temperature closer to the refrigeration room temperature can be provided.
  • cooling material 329a For the minimum cooling function of cooling material 329a, at the time of freezing 200g of wrapped tuna as food 331, for example, within 60 minutes, 460 kcal/mm2 or higher is necessary. For thickness, 0.63 kcal/mm or higher is necessary. Desirably, by using cooling material 329a having a cooling function of 1,040 kcal/mm2 or higher, even food 331 is five pieces of rice of 170g of 80 °C, it can be quickly frozen without increasing the temperature of freezing room 303.
  • a bubble pool for removing air included in a container of cooling material 329a from a contact face between food and cooling material 329a is provided on the outline of the top face of cooling material 329a, so that the efficiency of thermal conduction between food and cooling material 329a can be improved, so that the food freezing speed can be improved.
  • a projection and a recess are provided for the outer skin of cooling material 329a, the surface area of the cooling material can be increased, and heat-exchange capability between the cooling material and the cooling means can be improved. Consequently, even when cooling material 329 melts due to input of food or opening/closing of the door, time to re-freeze the cooling material can be shortened.
  • cooling material 329a is made of aluminum having excellent thermal conductivity, it may be made by resin molding.
  • the resin molding is less expensive and easy and cooling material 329a can be easily handled at the time of transportation and manufacture.
  • the heat-transfer rate between the cooling material and food is made higher, and food freezing speed can be improved.
  • cooling material 329a is mounted on the bottom of upper container 327
  • the hole formed in upper container 327 may be formed in a part of the bottom face of upper container 327 or in a rear face of upper container 327 near cold air discharge port 322.
  • a refrigerator body having a storage room defined to be thermally insulated, a door from or to which food is put in or taken out from the storage room, a container for housing food, a cooling promoting member attached to at least one of the containers, and a plurality of cooling means for cooling the cooling promoting member and the inside of the storage room are provided.
  • rise in temperature in the container can be minimized by relatively large heat capacity of the cooling promoting member.
  • temperature rise in a direct contact part is small, so that the speed improvement effect of directly cooling housed food by the cooling promoting member can be maintained. Even in the case where the temperature of the cooling promoting member rises due to input of food, by having a plurality of cooling means, re-refrigeration time can be shortened.
  • a plurality of cold air discharge ports for transmitting cold air into the storage room are provided.
  • the cooling promoting member can be cooled efficiently from both above and below.
  • the cold air discharge ports are provided in upper and lower part in the container to which the cooling material is attached, so that the cooling promoting member can be cooled more efficiently.
  • FIG. 13 is a side sectional view of a main part of a refrigerator in a further embodiment for a better understanding of the present invention.
  • door 324 provided for an opening in the front face of freezing room 303 is a drawer-type door.
  • door 324 is used to be pulled to the front side of the refrigerator, that is, to the left direction in FIG. 13 .
  • frame member 326 is provided, on which lower container 328 is put.
  • middle container 332 is put in an upper part of lower container 328.
  • middle container 332 is put in an upper part of lower container 328.
  • middle container 332 is pulled interlockingly with lower container 328.
  • middle container 332 can be slid in the upper part of lower container 328 in a predetermined range in the front and rear direction of the refrigerator and a lateral direction illustrated in FIG. 13 .
  • cold air discharge port 333 is provided in addition to cold air discharge ports 321 and 322.
  • Cold air discharge port 321 is disposed above upper container 327
  • cold air discharge port 322 is disposed below upper container 327 and above middle container 332
  • cold air discharge port 333 is disposed below middle container 332 and positioned above the upper end of the rear side face of lower container 328.
  • Cooling material 329a as cooling promoting member 329 is placed on the bottom of middle container 332.
  • Cold air discharge port 321 is disposed above upper container 327. First, Cold air is discharged from cold air discharge port 321 toward an opening in the top face of upper container 327 to cool the inside of upper container 327.
  • Cold air discharge port 322 is positioned below upper container 327 and between upper and middle containers 327 and 332. Cold air is discharged from cold air discharge port 322 toward an opening in the top face of middle container 332.
  • Food 331 housed on cooling material 329a is cooled by the cold air discharged from cold air discharge port 322 and heat of food 331 is taken directly from the cooling material itself. In this case, as compared with the case where only middle container 332 is provided without cooling material 329a, food 331 can be frozen more quickly.
  • Cold air discharge port 333 can directly cool cooling material 329a from below, which melts after directly cooling food 331. Therefore, the capability of quickly cooling food is reset promptly, and capability can be continued.
  • the refrigerator of this embodiment having a configuration that cooling material 329a is put on the bottom of middle container 332 has been described.
  • cooling material 329a By opening a hole in a part of middle container 332 so that cold air from cold air discharge port 333 comes into direct contact with cooling material 329a, cooling material 329a can be cooled more quickly.
  • the hole formed in middle container 332 may be formed in a part of the bottom face of middle container 332 or in a rear face of middle container 332 near cold air discharge port 333.
  • the position in the vertical direction of cold air discharge port 333 may be any position as long as cold air flows to the bottom of middle container 332 and does not always have to be below upper container 327.
  • the positions in the vertical direction of cold air discharge ports 333 and lower container 328 may be any positions as long as cold air flows to the bottom of middle container 332 and do not always have to be above middle container 332.
  • the user performs operation of pulling door 324 to the front side of the refrigerator, that is, to the left side in the drawing. Since frame member 326 is fixed to door 324, accompanying the operation of pulling door 324, frame member 326, lower container 328 mounted on frame member 326, and middle container 332 mounted on lower container 328 are simultaneously pulled. After storing food in lower container 328 or middle container 332, the user performs an operation of closing door 324.
  • the operation of fan 311 is stopped during the defrosting period, and control of preventing inflow of high-temperature air to freezing room 303 is performed.
  • the temperature in lower container 328 and middle container 332 further increases due to inflow of room air by opening of the door in addition to the fact the temperature in freezing room 303 is higher than that in normal operation by the defrosting control.
  • the temperature in middle container 332 which is more easily exposed to room air rises more than that in lower container 328 which is in a state where most part of the opening of the top face is closed with middle container 332.
  • cooling material 329a is mounted in middle container 332
  • temperature rise in middle container 332 can be suppressed without positive circulation of cold air by relatively large heat capacity of cooling material 329a. Since cooling material 329 is positioned above lower container 328, when temperature of lower container 328 rises due to opening of the door, without positive circulation of cold air, the inside of lower container 328 can be cooled.
  • a refrigerator body having a storage room defined to be thermally insulated, a door from or to which food is put in or taken out from the storage room, a plurality of containers for housing food, and a cooling material attached to at least one of the containers.
  • cooling material 329a Since a projection and a recess are provided for the outer skin of cooling material 329a, the surface area of the cooling material can be increased, and heat-exchange capability between the cooling material and the cooling means can be improved. Consequently, even when cooling material 329a melts due to input of food or opening and closing of the door, time to re-freeze cooling material 329a can be shortened.
  • a plurality of cold air discharge ports for transmitting cold air to the inside of the storage room are provided.
  • the cooling material can be efficiently cooled from upper and lower faces.
  • the cold air discharge ports are provided above and below the container to which the cooling material is attached, and the cooling material can be cooled more efficiently.
  • each of the rooms in the refrigerator is cooled by the cooling cycle of the refrigerator and reaches predetermined temperature.
  • heat is accumulated.
  • the food can be cooled not only by cooling in the maximum operation capability in the conventional cooling cycle but also the cooling capability of cooling material 329a as an example of the plurality of cooling means in which heat is already stored. Consequently, the food cooling speed can be drastically increased even in the cooling system of the same capability as that in the conventional technique.
  • Cooling with the maximum operating ability in the conventional cooling cycle denotes, for example, cooling operation of a not-shown compressor or fan 311 with the maximum rotation number.
  • FIG. 14A is a side sectional view of a main part when a door of a refrigerator is open in a second embodiment of the present invention.
  • FIG. 14B is a perspective view of a container in the second embodiment.
  • FIG. 14C is a perspective view of a cooling material in the second embodiment.
  • FIG. 14D is a side sectional view taken along 14D-14D of the cooling material in the second embodiment.
  • FIG. 15 is a side sectional view of a main part when the door of the refrigerator is closed in the second embodiment operation.
  • FIG. 16 is a side sectional view of a main part of a refrigerator in the embodiment for a better understanding of the invention.
  • cooling material 150 as the cooling promoting member having the cooling function is provided on the side of door 121 on the inner bottom of container 127 positioned in the upper one of two stages in freezing room 108.
  • Container 127 is provided with border 127a or projection 156 as fixing means that prevents cooling material 150 from being moved as the door is opened or closed. Since the purpose of border 127a or projection 156 is to check movement in the front or rear direction as the open or close direction of door 121, border 127a or projection 156 is formed so that the lateral direction which is in the direction orthogonal to the open/close direction of door 121 becomes a longitudinal direction. Since cooling material 150 is held by recess 160, recess 160 is also similarly fixing means.
  • a resin case as an outer container of cooling material 150 has relatively-flat food disposing surface 259 on which food is disposed and absorption part 260 projected upward so as to surround food disposing surface 259 around food disposing surface 259 and having the bubble pool.
  • Absorption part 260 has the function of food holding means of suppressing movement of food mounted on cooling material 150.
  • the food disposing surface has mark 259a as the center of the disposing part at the time of food disposing.
  • Mark center 259b as the center part of mark 259a is positioned on the rear side of center line 14D-14D in the front-rear direction as the drawer opening or closing direction of the food disposing surface.
  • noncontact detecting means 280 such as an infrared light sensor is provided.
  • the noncontact detecting means is provided in a center portion of the food disposing surface. That is, mark 259a is provided on the rear side of center line 14D-14D in the front-rear direction as the drawer opening or closing direction of the food disposing surface.
  • noncontact detecting means 280 is positioned either one of projection faces in the vertical direction of center line 14D-14D. That is, noncontact detecting means 280 is not mounted so as to coincide with mark center 259b as the center part of mark 259a on a projection line in the vertical direction. In a state where the door is closed, noncontact detecting means 280 is positioned on the front side in the front or rear direction more than center part 259b of mark 259a.
  • the food disposing means is formed rationally.
  • the bubble pool has the function of food retaining means of holding food so that food does not move from food disposing surface 259.
  • the air bubbles are disposed in all of four sides so as to surround food disposing surface 259.
  • the food retaining means is continuously provided along the entire outer periphery of food disposing surface 259.
  • cooling material 150 is detachable and has attachment and detachment auxiliary part 170 formed as a recess in which a finger of the user can be inserted at the time of attaching and detaching cooling material 150 to or from container 127 and attachment and detachment holder 171 formed as a recess in a container on the opposite side via attachment and detachment auxiliary part 170 and cooling material 150.
  • attachment and detachment auxiliary part 172 formed in a recess shape and cooling material attachment and detachment holder 173 formed in a projection shape are engaged with each other, the usability at the time of attachment and detaching is high, and positioning at the time of attachment can be performed reliably.
  • attachment and detachment auxiliary part 170 on the side of container 127 and cooling material attachment and detachment auxiliary part 172 are communicated with each other via the recesses in a state where cooling material 150 is attached in recess 160, a finger of the user can be inserted, and the usability at the time of attachment and detachment is improved. Further, since cooling material attachment and detaching holder 173 is inserted in attachment and detaching holder 171 formed on the side of container 127, reliable positioning can be performed in the case of attaching the cooling material. Also in the case of detaching the cooling material, the attachment and detaching holders serve as supporting points, and the cooling material can be easily detached. Therefore, usability of the users can be further improved.
  • attachment and detachment auxiliary part 170 and cooling material attachment and detaching auxiliary part 172 as a part in which a finger of the user is inserted are mounted so as to be positioned on the right side in the case where the user opens the storage room having cooling material 150. That is, since the attachment and detachment auxiliary part and cooling material attachment and detachment auxiliary part 172 are formed on the right side of the storage room, the operation of a general right-handed user who attaches and detaches cooling material 150 becomes smoother and cooling material 150 is easily taken.
  • cooling material 150 As the cooling member having the cooling function, a finger of the user is not adhered to the cooling material at the time of attachment and detachment. Therefore, the operation of attaching and detaching cooling material 150 becomes safer and smoother, and cooling material 150 is easily taken out.
  • cooling material attachment and detachment auxiliary part 172 is formed by an injection part used to inject the cooling material as a cooling solution into the outer container of the cooling material, so that cooling material attachment/detachment auxiliary part 172 is formed by a more rational configuration.
  • the line 14D-14D connecting cooling material attachment and detachment auxiliary part 172 and cooling material attachment and detachment holder 173 extends a center line in the front or rear direction of the cooling material. Consequently, the cooling material can be attached and detached without deviation in the front or rear direction of weight of the cooling material. Thus, smoother attachment and detachment can be given to the user.
  • the height to the upper end face of cooling material 150 provided in freezing room 108 from ground surface 152 is set to 800 mm by caster 151 provided on the under face of thermally insulated box body 101 and making refrigerator body 102 easily movable and vegetable room 109 mounted below freezing room 108.
  • Freezer room discharge ports 153a and 153b are discharge ports for discharging cold air for cooling freezing room 108 and disposed in the longitudinal direction while sandwiching the cooling material.
  • Freezer room exhaust port 154 is an exhaust port from which the cold air which cooled freezing room 108 returns from freezing room 108 to evaporator 113.
  • Supply duct 155 is a duct in which the cold air for cooling refrigerating room 107 passes.
  • Cooling material 150 is mounted at the bottom of container 127, and the front face of cooling material 150 is disposed so as to be in contact with the inner face on the front side as the side of door 121 of container 127.
  • the rear face of cooling material 150 is projected from the bottom of container 127 and is disposed in contact with the front face of border 127a or projection 156 as fixing means for preventing the cooling material from moving in the front/rear direction, thereby being fixed so as not to be moved in the front or rear direction.
  • coolant 257 and gas 258 exist in a sealed resin case.
  • Gas 258 is air.
  • the resin case has, as outside dimensions, a width of 300 mm, a depth of 300 mm, and a height of 20 mm and is a blow-molding product made of polyethylene resin having a thickness of 1.5 mm.
  • Coolant 257 is a material having a latent heat at -15 °C as a temperature lower than freezing temperature of general food to be frozen, lower than temperature in the zone of maximum ice crystal formation, and higher than temperature of freezing room 108.
  • the fill amount is an amount corresponding to the volume of food disposed on the top face and has, for example, a heat amount having a latent heat amount corresponding to the sum of a latent heat amount and a detectable heat amount from about 30 °C to -10 °C. That is, in the case where cooling material 150 is frozen, it does not completely melt at the time of inputting general food in normal use.
  • Container 127 has storing part 263 as a normal storage space, that is, a freezing region on the rear side of border 127a or projection 156.
  • container 127 frozen food 157 already stored and put-in food 158 newly input are placed.
  • a freezing region for storing frozen food 157 already stored is formed on the rear side in the refrigerator as the upstream side in the path of cold air flowed from freezing room discharge ports 153a and 153b.
  • a food disposing part in which put-in food 158 which is newly input is mounted is positioned on the front side of the refrigerator as the downstream side.
  • the food disposing part is made of cooling material 150.
  • Border 127a between food retaining means provided for the housing region having the cooling material and a general freezing region having no cooling material is formed smoothly via inclined part 127b.
  • a step having a right angle is not formed in the general freezing region. Consequently, the air path resistance is further decreased in the cold air flow direction from the rear side and the cold air can be smoothly passed to the housing region provided with the cooling material on the downstream side.
  • the flow of cold air from the rear side of the step or the like to the front side is not changed. Therefore, for example, flow of the cold air from the housing region that houses warm air backward to storing part 263 as a freezing region due to an eddy or the like which occurs in the flow of the cold air is suppressed, and cooling efficiency can be further increased.
  • supply and circulation of cold air for cooling refrigerating room 107 and vegetable room 109 are not shown, they form as another air path independent of the cold air supply path for cooling the storage room which has a cooling material and can be set in the freezing temperature band. For example, a large amount of cold air performed by quick freezing does not directly flow to another storage room.
  • Cooling material 150 as a cooling promoting member and frozen food 157 are cooled to -20 °C as predetermined temperature of freezing room 108 and frozen by cold air flowed from freezing room discharge ports 153a and 153b as cooling means.
  • door 121 is opened to put put-in food 158 of 5 °C corresponding to refrigeration temperature
  • heat is taken from put-in food 158 immediately after input by cooling material 150 frozen at -20 °C, and cooling is started.
  • cooling material 150 rises from -20 °C in the detectable heat range by absorption of heat to -15 °C. While maintaining temperature difference from put-in food 158 at -15 °C in the latent heat range, a part starts melting.
  • cooling material 150 is also cooled by cooling material 150 and held to be lower temperature as compared with that of the conventional technique.
  • Input food 158 is cooled also by the low-temperature air.
  • coolant 257 of cooling material 150 rises from -20 °C in the detectable heat range by absorption of heat to -15 °C. While maintaining a moderate temperature difference for performing heat exchange with put-in food 158 at -15 °C in the latent heat range or outside air which flows in, a part starts melting.
  • cooling material 150 having a latent heat temperature of -15 °C is used, at the time of performing heat exchange to about -10 °C in the zone of maximum ice crystal formation related to the freezing quality of put-in food 158, a large temperature difference is assured, and the zone of maximum ice crystal formation can be promptly passed. Further, since the latent temperature is higher than the freezing room temperature by about 5 °C, a heat exchange temperature difference necessary to freeze cooling material 150 can be assured.
  • cooling material 150 positioned forward cools outside air which flows in container 127, and the periphery of frozen food 157 is kept at lower temperature as compared with the conventional technique. Further, temperature rise caused by thermal interference is suppressed more largely as compared with the case where there is no cooling material.
  • thermoelectric detecting means 280 such as an infrared sensor.
  • determination is made to perform quick freezing, and the operation of the refrigeration cycle (not shown) starts.
  • a refrigerant is distributed to evaporator 113, cold air is generated, simultaneously, fan 114 operates, and the cold air is circulated, quick freezing starts automatically.
  • the temperature of put-in food 158 is detected by noncontact detecting means 280 and, then, quick freezing operation is started automatically.
  • the cold air cooled by evaporator 113 is supplied from freezing room discharge ports 153a and 153b into freezing room 108 to quickly cool frozen food 157 and put-in food 158 from both above and below.
  • put-in food 158 is cooled by both means of direct cooling by thermal conduction from cooling material 150 on food disposing surface 259 and indirect cooling by thermal conduction from cold air passed.
  • the low-temperature cold air is always discharged in the storage room in the freezing temperature zone. Even when the freezing room is sufficiently cooled, there is a case that the low-temperature cold air flows. Also in this case, the load amount of excessive cooling can be stored as it is in the cooling material, the energy-saving freezing room can be realized.
  • a part of the cold air is used also to cool cooling material 150.
  • freezing room 108 is cooled in the case where temperature is higher than -20 °C as predetermined temperature.
  • the temperature difference from the latent heat temperature -15 °C of cooling material 150 is small.
  • the cold air is mainly used to cool food.
  • the cold air is passed into container 127 by a not-shown air passage configuration.
  • put-in food 158 is put on food disposing surface 259 of cooling material 150 as a put-in food disposing part, so that put-in food 158 is mainly cooled.
  • put-in food 158 becomes close to -15 °C as the latent heat temperature of cooling material 150, the more the cold air is used for cooling of cooling material 150.
  • the freezing temperature is around 0 °C, and zone of maximum ice crystal formation is often up to -10 °C.
  • put-in food 158 is focusingly cooled by a major part of the cold air.
  • the zone of maximum ice crystal formation is passed promptly.
  • cooling material 150 When container 127 is taken to the outside of refrigerator body 102 and cooling material 150 is exposed to the outside air like in the case where door 121 is open, temperature rise in frozen food 157 stored in cooled container 127 by cooling material 150 is suppressed. The put-in food 158 and the outside air which is flowed in are cooled by cooling material 150 and frozen in short time.
  • a part of moisture in outside air accompanying inflow of outside air when door 121 is opened forms dew or frost on cooling material 150.
  • the dew or frost is removed from the surface of cooling material 150 by being sublimated or evaporated by cold air circulating in the cooling operation.
  • High-moisture air forms dew by evaporator 113, dehumidified low-temperature air is re-circulated and distributed around cooling material 150, and moisture and frost adhered to the surface of cooling material 150 is removed by circulation of cold air during cooling operation of removing moisture from cooling material 150.
  • next opening of door 121 is performed in short time, that is, when the user opens door 121 and puts food in a state where moisture or frost which is adhered by opening of last time of door 121 remains on cooling material 150, particularly, if the temperature of the put-in food is relatively low, at the time of putting put-in food 158 and closing door 121, put-in food 158 easily slips on food disposing surface 259 by repulse of the closing. After that, cooling air is not easily distributed through moisture existing between the food and cooling material 150, that is, frost and ice, so that sublimation or evaporation does not easily occur, and the frost and ice tend to remain.
  • cooling material 150 is fixed by border 127a or projection 156 in container 127 so that it does not move.
  • border 127a or projection 156 as fixing means to prevent cooling material 150 from moving accompanying opening or closing of the door is to check movement in the front or rear direction as the open or close direction of door 121.
  • border 127a or projection 156 is formed so that the lateral direction which is in the direction orthogonal to the open/close direction of door 121 becomes a longitudinal direction, movement of cooling material 150 accompanying opening or closing of door 121 can be reliably suppressed.
  • the food disposing surface has mark 259a as the center of the mounting part at the time of food disposing.
  • Mark center 259b as the center part of mark 259a is positioned on the rear side of center line 14D-14D in the front-rear direction as the drawer opening or closing direction of the food disposing surface. Consequently, even if put-in food 158 moves due to the inertia force accompanying closing the drawer, put-in food 158 existing around mark center 259b is prevented from moving forward and colliding door 121, and put-in food 158 is promoted to be positioned in the food disposing surface.
  • noncontact detecting means 280 such as an infrared light sensor is provided.
  • the noncontact detecting means is provided in a center portion of the food disposing surface. That is, mark 259a is provided on the rear side of center line 14D-14D in the front-rear direction as the drawer opening or closing direction of the food disposing surface.
  • noncontact detecting means 280 is positioned either one of projection faces in the vertical direction of center line 14D-14D. That is, noncontact detecting means 280 is not mounted so as to coincide with mark center 259b as the center part of mark 259a on a projection line in the vertical direction.
  • noncontact detecting means 280 In a state where the door is closed, noncontact detecting means 280 is positioned on the front side in the front or rear direction more than center part 259b of mark 259a. Consequently, even when put-in food 158 moves due to the inertia force accompanying closing the drawer, since it is assumed that put-in food 158 existing around mark center 259b moves forward, put-in food 158 is positioned in an accurate detection range of noncontact detecting means 280, temperature of put-in food 158 can be detected more precisely and, further, precision of prompt quick cooling can be enhanced.
  • cooling material 150 As described above, forward movement of cooling material 150, frozen food 157, and put-in food 158 is prevented by the front wall of container 127. Consequently, movement due to sliding of frozen food 157 and put-in food 158 is suppressed. Even there is a repulse of opening or closing of door 121, heat of frozen food 157 and put-in food 158 is absorbed by cooling material 50. Suppression of temperature rise and shortening of cooling time at the time of inputting food can be realized.
  • the attachment and detachment auxiliary part and cooling material attachment and detaching auxiliary part 172 as a part in which a finger of the user is inserted are mounted so as to be positioned on the right side in the case where the user opens the storage room having cooling material 150. That is, since the attachment and detachment auxiliary part and cooling material attachment and detachment auxiliary part 172 are formed on the right side of the storage room, the operation of a general right-handed user who attaches and detaches cooling material 150 becomes smoother and cooling material 150 is easily taken. Detachable cooling material 150 realizing universal design in which usability of the user is considered more can be provided.
  • the speed of cooling the put-in food can be improved more reliably, and the temperature influence on pre-stored frozen food 157 in the periphery can be prevented.
  • the influence of the temperature of entire container 27 of the freezing room is prevented from being exerted on the other part.
  • -10 °C is higher than -20 °C as the center temperature of the normal freezing temperature zone by about 10 °C.
  • the quick freezing function is already employed in the conventional refrigerator, the use frequency is low. The reasons are that the starting operation by the user is necessary on start of quick freezing and the existence itself of the quick freezing function is not known. According to the present invention, the quick freezing function can be operated automatically without starting operation by the user, so that cooling with saved energy can be performed more promptly.
  • the conventional quick freezing time is almost constant or until the set temperature of the storage room, excessive cooling operation is performed even after food is frozen, and it causes increase in power consumption.
  • the automatic quick freezing is employed in which the center temperature is presumed from the surface temperature of food which is input, the quick freezing control is started automatically and, further, after passing the zone of maximum ice crystal formation, the quick freezing control is automatically finished.
  • high-quality freezing can be realized with further saved energy.
  • the freezing function having cooling speed equivalent to that of an industrial freezer of freezing to -60 °C is realized in an energy-saving manner by a household refrigerator using -40 °C for the lowest cold air, and freezing quality of food can be improved dramatically.
  • coolant 257 of cooling material 150 is positioned in absorption part 260 as bubble pool in the vertical direction (upper side in the gravity direction) than food disposing surface 259 as the food disposing part. Consequently, in the case of mounting the cooling material, coolant 257 in the cooling material moves downward by the gravity force, and air included in the outer container of cooling material 150 moves to cooling material 257 as a bubble pool positioned above. Therefore, the cooling material is reliably in contact with the inner side of the outer container facing food disposing surface 259, and the thermal conductivity of food disposing surface 259 can be further increased.
  • cooling material 150 mounted in container 127 is easily exposed to outside air, formation of dew and frost on cooling material 150 increases, and the possibility that food slides increases. Therefore, the food sliding suppression effect in absorption part 260 in the second embodiment is particularly high.
  • the position of door 121 is also about 800 mm, and door 121 is positioned in the range from 500 mm to 1,200 mm which is a height general persons can easily operate. Since the storage room in which quick freezing is performed automatically is positioned in a most usable position, the usability of users can be further improved.
  • the door positioned in the range from 500 mm to 1,200 mm as a height at which human being relatively easily operates is susceptible to human power and the possibility that a repulse accompanying opening or closing door 121 is large is high.
  • absorption part 260 as food retaining means of suppressing movement of food due to sliding of food at the time of closing the drawer door is particularly effective.
  • the refrigerator of the present invention can minimize temperature rise in a container, and storage quality by directly cooling housed food can be assured. Therefore, the refrigerator can be also applied not only to a household refrigerator, but also to an industrial refrigerator and the like.

Landscapes

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

Claims (7)

  1. Réfrigérateur comprenant :
    un corps principal de réfrigérateur (102) possédant une chambre de stockage qui est conçue de telle sorte que la chambre de stockage est isolée thermiquement ;
    une porte (121) à travers laquelle des aliments (158) sont placés dans la chambre de stockage et retiré de celle-ci ;
    un récipient (127) qui s'étend à partir du corps principal de réfrigérateur (102) lorsque la porte (121) est ouverte ; et
    un matériau de refroidissement (150) qui est fixé au récipient (127) ;
    le récipient (127) étant pourvu de moyens de fixation (160, 127a) qui sont conçus pour fixer le matériau de refroidissement (150),
    le récipient (127) comprenant une section côté avant qui est située sur un côté de porte du récipient (127) et une section côté arrière qui est située sur un côté arrière du récipient (127) ;
    le matériau de refroidissement (150) étant disposé dans la section côté avant du récipient (127) et possédant une surface de placement d'aliment (162, 259) sur laquelle est placé l'aliment ;
    caractérisé en ce que
    le matériau de refroidissement (150) comprend en outre des moyens de retenue d'aliment (161, 260) qui sont conçus pour empêcher le déplacement des aliments vers un emplacement autre que la surface de placement d'aliment (162, 259);
    les moyens de fixation possèdent un évidement (160) qui est formé intégralement avec le récipient (127) en tant qu'une partie d'un matériau de résine qui est un constituant du récipient (127) ;
    les moyens de retenue d'aliment (161, 260) sont disposés sur la surface de placement d'aliment (162) pour placer les aliments sur une surface supérieure du matériau de refroidissement (150) et possèdent une forme qui dépasse au moins un côté arrière du matériau de refroidissement (150) ; et
    les moyens de fixation (160,127a) présentent en outre une bordure (127a) qui est située entre les moyens de retenue d'aliment (161, 260), qui sont disposés dans la section côté avant, qui est utilisée comme zone de stockage avec le matériau de refroidissement (150), et la section côté arrière, qui est utilisée en tant que partie de stockage (163, 263), qui est une région de congélation générale sans le matériau de refroidissement (150), la bordure (127a) étant formée sans à-coups par l'intermédiaire d'une partie inclinée (127b).
  2. Réfrigérateur selon la revendication 1, dans lequel le matériau de refroidissement (150) présente une structure détachable.
  3. Réfrigérateur selon la revendication 2, dans lequel le récipient (127) possédant le matériau de refroidissement (150) est positionné à un niveau de 600 mm à 1200 mm à partir d'une surface de sol sur laquelle le corps de réfrigérateur (102) est placé.
  4. Réfrigérateur selon l'une quelconque des revendications 1 à 3, dans lequel le matériau de refroidissement (150) est positionné au niveau d'une surface supérieure d'un fond du récipient (127).
  5. Réfrigérateur selon l'une quelconque des revendications 1 à 4, dans lequel le moyen de fixation (160, 127a) est formé intégralement avec le récipient (127).
  6. Réfrigérateur selon l'une quelconque des revendications 1 à 5, dans lequel le matériau de refroidissement (150) possède un fluide de refroidissement (257) et une partie d'absorption (260) pour absorber un changement de volume lors d'un changement de phase du fluide de refroidissement (257).
  7. Réfrigérateur selon la revendication 6, dans lequel la partie d'absorption (260) possède une forme dépassant vers le haut dans une périphérie externe de la surface de placement d'aliment (259).
EP09720395.4A 2008-03-14 2009-03-12 Réfrigérateur Active EP2258995B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2008065414 2008-03-14
JP2008065410 2008-03-14
JP2008157754 2008-06-17
JP2008184439 2008-07-16
JP2008231735A JP2010025530A (ja) 2008-06-17 2008-09-10 冷蔵庫
JP2008233215A JP2010043825A (ja) 2008-03-14 2008-09-11 冷蔵庫
PCT/JP2009/001109 WO2009113309A1 (fr) 2008-03-14 2009-03-12 Réfrigérateur

Publications (3)

Publication Number Publication Date
EP2258995A1 EP2258995A1 (fr) 2010-12-08
EP2258995A4 EP2258995A4 (fr) 2015-04-29
EP2258995B1 true EP2258995B1 (fr) 2019-10-02

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EP (1) EP2258995B1 (fr)
CN (1) CN101970960B (fr)
WO (1) WO2009113309A1 (fr)

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JP5617305B2 (ja) * 2009-12-21 2014-11-05 パナソニック株式会社 冷蔵庫
WO2014119121A1 (fr) 2013-02-01 2014-08-07 シャープ株式会社 Réceptacle de stockage
JP6386275B2 (ja) * 2014-07-08 2018-09-05 シャープ株式会社 保冷庫
EP3037763A1 (fr) * 2014-12-23 2016-06-29 Indesit Company S.p.A. Appareil de réfrigération
CN106322885B (zh) * 2015-05-29 2018-10-12 广州博澳斯电器有限公司 一种快速制冷保鲜冰箱及检测方法
WO2017134219A1 (fr) 2016-02-05 2017-08-10 Arcelik Anonim Sirketi Tiroir comprenant un matériau à changement de phase et réfrigérateur utilisant ledit tiroir
IT201700022326A1 (it) * 2017-02-28 2018-08-28 Lenari Italia S R L Vetrina gelato e cassetto gelato
JP6967725B2 (ja) * 2017-10-06 2021-11-17 パナソニックＩｐマネジメント株式会社 冷蔵庫、及び冷蔵庫の制御方法
CN107940851A (zh) * 2017-11-06 2018-04-20 合肥华凌股份有限公司 速冷装置以及具有其的风冷冰箱
KR102474192B1 (ko) * 2017-11-22 2022-12-06 엘지전자 주식회사 냉장고
CN112923652A (zh) * 2021-03-01 2021-06-08 合肥美菱物联科技有限公司 一种保鲜冰箱的控制方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58188588U (ja) * 1982-06-10 1983-12-14 シャープ株式会社 冷凍庫の急冷トレイ
DE19907184A1 (de) * 1999-02-19 2000-08-24 Bsh Bosch Siemens Hausgeraete Gefrierschrank
JP2000304435A (ja) 1999-04-20 2000-11-02 Fujitsu General Ltd 冷蔵庫
JP3800900B2 (ja) * 1999-09-09 2006-07-26 三菱電機株式会社 冷凍冷蔵庫、冷凍冷蔵庫の運転方法
CN2814277Y (zh) * 2005-05-24 2006-09-06 广东科龙电器股份有限公司 一种冰箱的蓄冷装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2258995A1 (fr) 2010-12-08
CN101970960A (zh) 2011-02-09
CN101970960B (zh) 2013-08-28
WO2009113309A1 (fr) 2009-09-17
EP2258995A4 (fr) 2015-04-29

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