WO2018033966A1 - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- WO2018033966A1 WO2018033966A1 PCT/JP2016/073958 JP2016073958W WO2018033966A1 WO 2018033966 A1 WO2018033966 A1 WO 2018033966A1 JP 2016073958 W JP2016073958 W JP 2016073958W WO 2018033966 A1 WO2018033966 A1 WO 2018033966A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refrigerator
- supercooled
- cold
- storage container
- room
- Prior art date
Links
- 235000013311 vegetables Nutrition 0.000 claims abstract description 30
- 238000007710 freezing Methods 0.000 claims abstract description 13
- 230000008014 freezing Effects 0.000 claims abstract description 13
- 238000004781 supercooling Methods 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 235000013305 food Nutrition 0.000 description 18
- 238000005057 refrigeration Methods 0.000 description 10
- 238000001816 cooling Methods 0.000 description 7
- 239000013078 crystal Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005779 cell damage Effects 0.000 description 1
- 208000037887 cell injury Diseases 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013526 supercooled liquid Substances 0.000 description 1
- 235000013618 yogurt Nutrition 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
-
- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/122—Sensors measuring the inside temperature of freezer compartments
Definitions
- the present invention relates to a refrigerator that can be stored under cooling.
- Patent Documents 1 and 2 Conventionally, a refrigerator having a plurality of temperature zone rooms has been proposed due to the growing need to store foods at an optimum temperature (see Patent Documents 1 and 2). According to the refrigerators of Patent Documents 1 and 2, the amount of cold air is set individually for the upper and lower cryogenic containers in the refrigerator compartment, and different temperatures are set for the air in the upper and lower cryogenic containers. Can be set. In addition, a refrigerator in which a heater for controlling temperature is embedded in a boundary wall has been proposed in order to perform supercooled storage (see Patent Document 3).
- JP 2001-330361 A Japanese Patent No. 3571549 Japanese Patent No. 5847235
- the present invention has been made in order to solve the above-described problems, and in realizing supercooled storage of an object to be cooled, the energization rate and size of the heater can be suppressed, and the supercooled storage can be efficiently performed.
- the refrigerator which can perform is provided.
- the refrigerator of the present invention is set in a refrigeration temperature zone, a refrigeration room for storing an object to be cooled, a supercooled cold insulation room provided in the refrigeration room for keeping the object to be cooled at a supercooling temperature below a freezing temperature, A vegetable room adjacent to the supercooled cold room, which has a higher set temperature than the refrigerator room, a boundary wall provided between the vegetable room and the supercooled cold room, and below the supercooled cold room And a heater that heats an object to be cooled in the supercooled cold insulation chamber.
- the supercooled cool room is not cooled by heat transfer from the vegetable room by arranging the vegetable room having a higher set temperature than the cold room adjacent to the supercooled cool room. Therefore, it is not affected by temperature unlike the prior art in which the freezer compartment is adjacent to the supercooled cold room. As a result, the supercooled cold-reserving chamber is not cooled too much, and the energization rate and size of the heater used for the supercooled storage can be suppressed, and the supercooled storage can be performed efficiently.
- FIG. 2 is a cross-sectional view of the refrigerator according to Embodiment 1 of the present invention, taken along line AA in FIG. 2 is a cross-sectional view of the refrigerator according to Embodiment 1 of the present invention, taken along the line BB in FIG. It is the E section enlarged view in FIG. 3 of the refrigerator which concerns on Embodiment 1 of this invention.
- FIG. 5 is a sectional view taken along the line CC in FIG. It is the F section enlarged view in FIG. It is the G section enlarged view in FIG. It is DD sectional drawing in FIG.
- FIG. 1 is a front view of a refrigerator according to Embodiment 1 of the present invention.
- the door of the refrigerator compartment 2 is not shown in order to explain the internal structure of the refrigerator compartment 2.
- 2 is a cross-sectional view of the refrigerator according to the first embodiment of the present invention taken along the line AA in FIG. 3 is a cross-sectional view of the refrigerator according to Embodiment 1 of the present invention, taken along the line BB in FIG.
- a schematic configuration of the refrigerator 1 will be described with reference to FIGS. 1 to 3 indicate the width direction of the refrigerator 1, the Y axis indicates the depth direction of the refrigerator 1, and the Z axis indicates the height direction of the refrigerator 1.
- the refrigerator 1 is described with the X1 side on the left side, the X2 side on the right side, the Y1 side on the front side, the Y2 side on the rear side, the Z2 side on the Z axis, and the Z2 side on the Z axis.
- the positional relationship (for example, vertical relationship etc.) between each structural member in a specification is a thing when installing the refrigerator 1 in the state which can be used in principle.
- the refrigerator 1 has a substantially rectangular parallelepiped casing 50 having a front surface (front) opened and a plurality of storage chambers formed therein.
- the housing 50 includes a steel outer box, a resin inner box, and a heat insulating material filled in a space between the outer box and the inner box.
- the storage space formed inside the housing 50 is partitioned by a plurality of partition members into a plurality of storage chambers in which an object to be cooled such as food is stored.
- the refrigerator 1 is arranged as a plurality of storage rooms in a refrigerator compartment 2 arranged at the top, a vegetable compartment 3 arranged below the refrigerator compartment 2, and a vegetable compartment 3 below.
- the lowermost freezer compartment 4 is partitioned and provided.
- the kind and number of the storage rooms with which the refrigerator 1 is provided are not limited to these in the structure where a vegetable room is installed in the lower area
- the freezer compartment 4 may be provided divided into a plurality of rooms such as up and down or left and right.
- a compressor 30 that compresses and discharges refrigerant
- a cooler 8 that functions as an evaporator
- a blower fan 9 is provided for moving the cool air generated by the vessel 8.
- the refrigerator 1 has a first air passage 10 that is an air passage through which cold air flows and in which a cooler 8 and a blower fan 9 are installed.
- the compressor 30 has a refrigerant discharge side connected to a condenser (not shown) and a refrigerant suction side connected to the cooler 8.
- the cooler 8 functions as an evaporator, and generates cold air by exchanging heat between the refrigerant flowing through the cooler 8 and the air in the first air passage 10.
- the blower fan 9 supplies cold air from the first air passage 10 to the refrigerator compartment 2, the vegetable compartment 3, and the freezer compartment 4.
- the first air passage 10 is provided vertically in the inner wall panel 17 of the housing 50 from the lower side to the upper side in the refrigerator 1. More specifically, the first air passage 10 is provided on the back side of the refrigerator compartment 2, the vegetable compartment 3, and the freezer compartment 4.
- the 1st air path 10 is divided
- the first air passage 10a is provided with a damper 11a
- the first air passage 10b is provided with a damper 11b.
- the damper 11a and the damper 11b adjust the air volume of the cool air supplied to the second storage container 5c, the refrigerator compartment 2, and the first storage container 5b.
- the damper 11a and the damper 11b may be replaced with a twin damper.
- a cold air outlet 17a is formed in the inner wall panel 17 of the refrigerator compartment 2 as shown in FIG.
- the compressor 30 and the cooler 8 constitute a refrigeration cycle together with a condenser and expansion means (not shown).
- the cold air generated by the cooler 8 by the operation of the refrigeration cycle is blown by the blower fan 9 and supplied to the storage rooms such as the refrigerator compartment 2 and the freezer compartment 4 through the first air passage 10 on the back of the refrigerator 1. Is done.
- the cold air supplied to the refrigerator compartment 2 is returned to the cooler 8 through the second air passage 12 shown in FIG.
- the refrigerator 1 has a control device (not shown) that controls various devices.
- the temperature of each chamber is detected by a thermistor (not shown) installed in each chamber, and the dampers 11a installed in the first air passage 10a and the first air passage 10b are set so as to have a preset temperature.
- the controller 11 controls the opening degree of the damper 11b, the output of the compressor 30, the output of the heater 15, the amount of air blown by the blower fan 9, and the like.
- the refrigerating room 2 is a storage room that is set to a refrigerating temperature zone (for example, about 3 to 5 ° C.) and stores an object to be cooled such as food.
- the refrigerator compartment 2 is provided with a shelf 21 for storing food and the like.
- the opening formed in the front surface of the refrigerator compartment 2 is provided with a rotary (for example, open door) door 2c that opens and closes the opening.
- the door 2c of the refrigerator compartment 2 may not be a door-opening door but may be a single rotary door.
- the refrigerator compartment 2 is provided with an inner wall panel 17.
- the inner wall panel 17 is disposed at a position facing the door 2 c of the refrigerator compartment 2 and forms a rear wall in the refrigerator compartment 2.
- the inside of the refrigerator compartment 2 is divided by the top plate 18, and the chilled chamber 5a is provided as one of the storage rooms in the downward direction in the refrigerator compartment 2. As shown in FIG. Details of the chilled chamber 5a will be described with reference to FIG.
- FIG. 4 is an enlarged view of part E in FIG. 3 of the refrigerator according to Embodiment 1 of the present invention.
- a first storage container 5b capable of maintaining a lower temperature than the refrigerator compartment 2 is disposed in the upper space
- a second storage container 5c capable of being supercooled and stored in the lower space.
- a plate 6 is provided to divide the upper space and the lower space.
- the top plate 18 is provided above the second storage container 5c
- the first storage container 5b is provided between the top plate 18 and the second storage container 5c.
- the first storage container 5b and the second storage container 5c are drawer-type containers that can move in the front-rear direction along a rail (not shown) provided inside the side wall of the chilled chamber 5a.
- the rail may be on the bottom wall of the chilled chamber 5a and the partition plate 6, or may not be provided.
- the first storage container 5 b is a substantially box-shaped member having an upper surface having a front wall 5 b 1, a side wall 5 b 2, and a rear wall 5 b 3. Is done.
- the second storage container 5c is also a substantially box-shaped member having an upper surface opened having a front wall 5c1, a side wall 5c2, and a rear wall 5c3, and food is taken in and out through the upper surface opening when pulled out. .
- the first storage container 5b and the second storage container 5c As a material of the first storage container 5b and the second storage container 5c, for example, polystyrene or the like is used as in the case of a general refrigerator storage container, but is not limited thereto.
- the two storage containers, the first storage container 5b and the second storage container 5c are arranged up and down, but may be arranged in the left-right width direction, for example. There may be one storage container.
- the space in the 1st storage container 5b provided in the refrigerator compartment 2 is set to the temperature lower than the refrigerator compartment 2, and is set to the temperature higher than the 2nd storage container 5c, Similar to a chilled room of a general refrigerator, it is a cold room 5a1 set at about 0 ° C. For this reason, the 1st storage container 5b accommodates the thing which can maintain quality, for example, cheese, yoghurt, etc. by the cool preservation at about 0 degreeC.
- the space in the second storage container 5c provided in the refrigerator compartment 2 is kept at a lower temperature than the space in the first storage container 5b (for example, the supercooling temperature below the freezing point (freezing temperature) of the object to be cooled).
- the second storage container 5c what is desired to be kept in a supercooled state, for example, meat, fish, or a processed product thereof, is stored.
- the temperature adjustment of the cold insulation chamber 5a1 is performed by adjusting the air volume of the damper 11b
- the temperature adjustment of the supercooled cold insulation chamber 5a2 is performed by adjusting the air volume of the damper 11a and adjusting the output of the heater 15.
- a door is provided in the opening formed in the front surface of the upper space of the chilled chamber 5a using a lid 13 that is pivotally fixed to the top plate 18. By pulling out the first storage container 5b, the lid 13 rotates and the door opens.
- a front wall 5c1 of the second storage container 5c provided with a pull handle is configured as a drawer-type door in an opening formed in the front surface of the lower space of the chilled chamber 5a.
- the configuration of the door of the chilled chamber 5a is arbitrary.
- the lid 13 may be provided as a lower door
- the front wall 5b1 of the first storage container 5b may be configured as an upper door.
- an air outlet 17b is formed in the inner wall panel 17 behind the first storage container 5b, and the upper space of the chilled chamber 5a is connected to the first air passage 10b.
- an air outlet 17c is formed in the inner wall panel 17 behind the second storage container 5c, and the lower space of the chilled chamber 5a is connected to the first air passage 10a.
- a mouth 14 is formed.
- the chilled chamber suction port 14 is formed between the rear wall 5b3 of the first storage container 5b and the inner wall panel 17 of the refrigerator compartment 2.
- the chilled chamber suction port 14 is a through hole that communicates the upper space and the lower space in the chilled chamber 5a.
- the vegetable compartment 3 is provided below the refrigerator compartment 2 and is adjacent to the second storage container 5 c in the refrigerator compartment 2 via the boundary wall 7. In other words, the vegetable room 3 is adjacent to the supercooled cold room 5a2.
- the vegetable compartment 3 has a space for storing stored items, and is particularly suitable for refrigerated vegetables.
- the vegetable room 3 is a storage room in a refrigeration temperature zone (for example, about 3 to 7 ° C.) whose set temperature is higher than that of the refrigeration room 2.
- the vegetable compartment 3 is provided with a drawer-type door 3c. Opening / closing between the vegetable compartment 3 and the outside of the refrigerator 1 is performed by opening and closing the door 3c.
- the boundary wall 7 is provided between the vegetable compartment 3 and the second storage container 5c. In the configuration in which the vegetable compartment 3 is under the boundary wall 7, the second storage container 5c is not cooled by heat transfer. Therefore, the boundary wall 7 may not include a heat insulating material. As shown in FIG. 4, the boundary wall 7 is formed with a refrigerator compartment suction port 24 through which the cold air in the refrigerator compartment 2 is sucked. The refrigerator compartment suction port 24 is formed between the rear wall 5c3 of the second storage container 5c and the inner wall panel 17. The refrigerator compartment suction port 24 and the chilled chamber suction port 14 are at least partially overlapped in plan view. Moreover, the refrigerator compartment inlet 24 is connected to the 2nd air path 12, as shown in FIG.
- Heat 15 As shown in FIG. 4, below the second storage container 5c, as a heating mechanism (heating means) that heats an object to be cooled such as food in the second storage container 5c, a heater 15 is a boundary wall. 7 is installed. The heater 15 is used for heating an object to be cooled, and is used for a heating process of supercooled storage. In supercooled storage, it is necessary to prevent the object to be cooled from being overcooled and frozen. Therefore, the heater 15 is used to heat the object to be cooled that has been overcooled. By installing the heater 15 below the second storage container 5c, the object to be cooled in the second storage container 5c can be efficiently heated.
- the freezer compartment 4 is provided under the vegetable compartment 3 and has a space for storing stored items, and in particular, freezes the stored items.
- the freezer compartment 4 is a storage compartment set in a freezing temperature zone below 0 ° C. (for example, ⁇ 18 ° C. or lower).
- This freezer compartment 4 is provided with a drawer-type door 4c. By opening and closing the door 4c, opening / closing between the freezer compartment 4 and the outside of the refrigerator 1 is performed.
- This state is a supercooled state. If any cluster larger than the critical radius occurs, it becomes a nucleus and forms ice crystals, and the supercooled state is eliminated.
- the temperature is lowered, the probability that the supercooled state is eliminated increases, and the disturbance in the liquid also increases due to a disturbance such as a physical impact, resulting in a cluster having a critical half or more, and the supercooled state is eliminated.
- ice crystals are often produced using these as a core.
- the supercooled state may be released due to impact or some factor, and ice crystals may be generated in the food. If the supercooled state is left released, the food freezes, and the quality of the food deteriorates due to cell damage caused by freezing. Therefore, by controlling the low temperature process in which the set temperature in the refrigerator is set lower than the freezing point of the food and the temperature raising process in which the temperature is set higher than the freezing point, the temperature environment of the storage space is adjusted, and suddenly The food can be maintained in a supercooled state by cooling without giving a stimulus such as a temperature drop.
- the “temperature range” of the second storage container 5c that performs supercooled storage is preferably in the range of ⁇ 3 to ⁇ 1 [° C.]. In maintaining the supercooled state, it is preferable to make the “temperature distribution” of the second storage container 5 c uniform.
- the cold air produced by the cooler 8 is divided into cold air that passes through the blower fan 9 and travels toward the refrigerator compartment 2 and the freezer compartment 4.
- the cold air toward the refrigerating chamber 2 passes through the first air passage 10, and is divided into cold air toward the refrigerating chamber 2, the first storage container 5b, and the second storage container 5c by the damper 11a and the damper 11b.
- the cool air which goes to the refrigerator compartment 2 blows off to the refrigerator compartment 2 from the blower outlet 17a shown in FIG.
- the cold air blown out from the blower outlet 17a to the refrigerator compartment 2 passes over the shelf 21, descends from the top to the front in front of the refrigerator compartment 2, and moves toward the space 5d on the near side of the chilled chamber 5a shown in FIG.
- the cold air directed toward the first storage container 5b and the second storage container 5c is blown out from the outlet 17b to the first storage container 5b, and further blown out from the outlet 17c to the second storage container 5c.
- a part of the cold air blown out from the air outlet 17 b is chilled from the gap between the first storage container 5 b and the lid 13 or the gap between the lid 13 and the top plate 18. It escapes to the space 5d on the near side of the chamber 5a.
- a part of the cold air that has exited from the air outlet 17c escapes from the gap between the second storage container 5c and the partition plate 6 into the space 5d on the near side of the chilled chamber 5a.
- the cold air that has escaped from the first storage container 5b and the second storage container 5c into the space 5d on the near side of the chilled chamber 5a merges with the cold air that has flowed downward in the refrigerator compartment 2, and is below the second storage container 5c. And flows out from the refrigerator compartment suction port 24 to the second air passage 12 shown in FIG.
- the cold air blown out from the outlet 17b and the outlet 17c is bounced back to the lid 13 and the front wall 5c1 of the second storage container 5c, respectively, and goes to the rear of the storage container. Therefore, the cold air bounced back in the first storage container 5b passes through the chilled chamber suction port 14, which is a through hole formed in the partition plate 6, and merged with the cold air bounced back in the second storage container 5c. Then, it flows out from the refrigerator compartment inlet 24 to the second air passage 12. As shown in FIG. 3, the cold air flowing through the second air passage 12 passes through the rear of the vegetable compartment 3 and returns to the cooler 8. At this time, cold air does not have to flow into the vegetable compartment 3.
- the supercooled cool room 5a2 can be cooled by heat transfer from the vegetable room 3 by arranging the vegetable room 3 having a higher set temperature than the refrigerating room 2 adjacent to the supercooled cool room 5a2.
- the freezer compartment is adjacent to the supercooled cold storage compartment.
- the supercooled cold-reserving chamber 5a2 is not cooled too much, and the heating capability of the heater 15 used for precooling storage of the object to be cooled in the supercooled cold-reserving chamber 5a2 can be reduced.
- the energization rate of the heater 15 can be reduced, and the size of the heater 15 can be reduced, so that it is possible to efficiently perform overcooling storage.
- the amount of cold air passing through the space 5e between the second storage container 5c and the boundary wall 7 can be reduced.
- the chilled chamber suction port 14 and the refrigeration chamber suction port 24 overlap in plan view, it becomes easier for the cool air to flow into the second air passage 12, and the amount of cool air passing through the space 5e can be reduced. Since the amount of cool air passing through the space 5e is reduced, the heat of the heater 15 is not easily taken away by the cool air passing through the space 5e, so that the temperature raising capability of the heater 15 can be reduced. As a result, the energization rate of the heater 15 can be reduced, and the size of the heater 15 can be reduced, so that it is possible to efficiently perform overcooling storage.
- the boundary wall 7 does not need to include a heat insulating material for preventing heat transfer to the supercooled cold room 5a2, and the cost can be reduced.
- the temperature of the boundary wall 7 does not fall below the temperature of the second storage container 5c, there is no possibility that water freezes. Moreover, it is not necessary to consider the heat insulation performance of the boundary wall 7, and since it is the boundary wall 7 which does not have a heat insulating material, the thickness of the boundary wall 7 can be made thin locally. Due to these structural characteristics, a water supply tank 19 for making ice can be disposed in the boundary wall 7 as shown in FIG. 4, for example. Thus, the water supply tank which has been conventionally arranged beside the chilled chamber 5a can be moved into the boundary wall 7, and the width (X axis) of the first storage container 5b and the second storage container 5c is set to the refrigerator compartment 2. The full width in the cabinet (X axis) can be set. As a result, the storage amount of the first storage container 5b and the second storage container 5c can be increased.
- the blower outlet 17b and the blower outlet 17c are relative.
- the first storage container 5b and the second storage container 5c can be located at the center. Therefore, cold air can be evenly flowed into the first storage container 5b and the second storage container 5c.
- variation in the temperature distribution can be suppressed, so that the supercooled storage can be efficiently performed.
- FIG. FIG. 5 is a cross-sectional view taken along the line CC in FIG.
- the refrigerator which concerns on Embodiment 2 of this invention is demonstrated using FIG. Parts having the same configuration as those of the refrigerators of FIGS. 1 to 4 are denoted by the same reference numerals and description thereof is omitted.
- ribs 16 are provided in the boundary wall 7.
- the rib 16 is a side wall surrounding the heater 15 and is formed higher than the height of the heater 15.
- the rib 16 is similarly provided in a rectangular shape in plan view.
- the rib 16 may have a shape that surrounds the heater 15, and may be provided in various shapes according to the shape of the heater 15.
- the rib 16 surrounding the heater 15 in the boundary wall 7 and higher than the height of the heater 15 is provided. Therefore, even if cold air flows around the heater 15, the cold air does not directly hit the heater 15 because it is blocked by the ribs 16. As a result, the heat loss of the heater 15 can be reduced, and the heat of the heater 15 can be prevented from being used in places other than where it is necessary. Further, since warm air is directed upward from cold air, the presence of the rib 16 lowers the energization rate of the heater 15 by confining the heat of the heater 15 in the rib 16 of the boundary wall 7 and effectively using the heat during heat generation. In addition, the size of the heater 15 can be reduced. Therefore, for example, it is not necessary to provide the heater 15 on the entire boundary wall 7, and the heater 15 may be disposed only immediately below the second storage container 5 c.
- FIG. FIG. 6 is an enlarged view of a portion F in FIG.
- the refrigerator which concerns on Embodiment 3 of this invention is demonstrated using FIG. Parts having the same configuration as those of the refrigerators in FIGS. 1 to 5 are denoted by the same reference numerals and description thereof is omitted.
- the upper edge of the air outlet 17c is in contact with the lower surface of the partition plate 6.
- FIG. 7 is an enlarged view of a portion G in FIG. 8 is a cross-sectional view taken along the line DD in FIG.
- a refrigerator according to Embodiment 4 of the present invention will be described with reference to FIGS. 7 and 8. Parts having the same configuration as those of the refrigerators in FIGS. 1 to 6 are denoted by the same reference numerals and description thereof is omitted.
- the refrigerator 1C according to Embodiment 4 of the present invention further includes a thermistor 20 that detects the temperature of the second storage container 5c, and the thermistor 20 is interposed between the rear wall 5c3 and the inner wall panel 17 of the second storage container 5c. is set up.
- the temperature adjustment in the second storage container 5c is performed by adjusting the output of the heater 15 and the air volume of the cool air of the damper 11a, which are lower than the lower edge of the outlet 17c and equal to or greater than the rear wall 5c3 of the second storage container 5c. It is controlled based on the temperature detected by the thermistor 20 installed at a height of.
- the temperature of food does not fluctuate as rapidly as room temperature, but fluctuates gently with respect to changes in room temperature. For this reason, if the thermistor 20 is placed in a place where it is easily exposed to cold air, the difference between the food temperature and the temperature measured by the thermistor 20 becomes large, which is not suitable for supercooled storage. Therefore, the thermistor 20 is not disposed between the air outlet 17 c and the refrigerator compartment inlet 24 so that the cold air is hard to hit, and the outlet 17 c is formed between the installation position of the thermistor 20 and the refrigerator compartment inlet 24. It was set as the structure which is made. Since the air outlet 17c is arranged between the thermistor 20 and the refrigerator compartment suction port 24, the thermistor 20 is not directly exposed to cold air, and the temperature can be measured appropriately, and supercooled storage is realized. It becomes easy to do.
- the embodiment of the present invention is not limited to the above-described Embodiments 1 to 4.
- a wall may be provided around a portion of the thermistor 20 so that the cold air is difficult to hit.
- the heating means is not limited to the heater 15, and may be a heat exchanger or a Peltier element.
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- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
図1は、本発明の実施の形態1に係る冷蔵庫の正面図である。なお、図1は、冷蔵室2の内部構造を説明するために冷蔵室2の扉の図示を省略している。図2は、本発明の実施の形態1に係る冷蔵庫の図1におけるA-A断面図である。図3は、本発明の実施の形態1に係る冷蔵庫の図1におけるB-B断面図である。図1~図3を参照して、冷蔵庫1の概要構成について説明する。なお、図1~図3において示すX軸は、冷蔵庫1の幅方向を示し、Y軸は冷蔵庫1の奥行き方向を示し、Z軸は冷蔵庫1の高さ方向を示すものである。より詳細には、X軸においてX1側を左側、X2側を右側、Y軸においてY1側を前側、Y2側を後側、Z軸においてZ1側を上側、Z2側を下側として冷蔵庫1を説明する。また、明細書中における各構成部材同士の位置関係(例えば、上下関係等)は、原則として、冷蔵庫1を使用可能な状態に設置したときのものである。
FIG. 1 is a front view of a refrigerator according to
冷蔵庫1は、前面(正面)が開口されて内部に複数の貯蔵室が形成された略直方体状の筐体50を有している。筐体50は、鋼鉄製の外箱と、樹脂製の内箱と、外箱と内箱との間の空間に充填された断熱材と、から構成される。筐体50の内部に形成された貯蔵空間は、複数の仕切り部材によって、食品等の被冷却物が保存される複数の貯蔵室に区画されている。冷蔵庫1は、図1に示すように、複数の貯蔵室として、最上段に配置された冷蔵室2と、冷蔵室2の下方に配置された野菜室3と、野菜室3の下方に配置された最下段の冷凍室4とが、それぞれ区画されて設けられている。なお、冷蔵庫1が備える貯蔵室の種類および数は、冷蔵室の下部領域に野菜室が設置される構造において、これらに限定されるものではない。例えば、冷凍室4は、上下或いは左右など複数の部屋に区画されて設けられてもよい。 [Configuration of refrigerator 1]
The
冷蔵室2は、冷蔵温度帯(例えば、約3~5℃)に設定され、食品などの被冷却物を収納する貯蔵室である。冷蔵室2には、図2に示すように、食品などを収納する棚21などが設けられている。冷蔵室2の前面に形成された開口部には、当該開口部を開閉する回転式(例えば、観音開式)の扉2cが設けられている。もちろん、冷蔵室2の扉2cは、観音開式の扉ではなく、1枚式の回転式扉でもよい。冷蔵室2には、内壁パネル17が設けられている。内壁パネル17は、冷蔵室2の扉2cと対向する位置に配置され、冷蔵室2内の後壁を形成する。なお、冷蔵室2内の下方には、図1及び図2に示すように、天板18で冷蔵室2内が区切られ、貯蔵室の1つとしてチルド室5aが設けられている。チルド室5aの詳細は図4を用いて説明する。 (Refrigerator room 2)
The refrigerating
図2及び図3において、野菜室3は、冷蔵室2の下方に設けられ、境界壁7を介して冷蔵室2内の第2収納容器5cと隣接する。換言すれば、野菜室3は、過冷却保冷室5a2と隣接する。野菜室3は、貯蔵品を収納するための空間を有し、特に、野菜を冷蔵するのに適しているものである。野菜室3は、冷蔵室2よりも設定温度が高い冷蔵温度帯(例えば、約3~7℃)の貯蔵室である。この野菜室3には、引き出し式の扉3cが設けられている。この扉3cの開閉によって、野菜室3と冷蔵庫1外との間の開放/遮断が行われる。 (Vegetable room 3)
2 and 3, the
図2に示すように、境界壁7は、野菜室3と第2収納容器5cとの間に設けられている。野菜室3が境界壁7の下にある構成では、第2収納容器5cが伝熱で冷やされることはない。そのため、境界壁7は断熱材を含まなくてもよい。境界壁7には、図4に示すように、冷蔵室2の冷気が吸い込まれる冷蔵室吸込口24が形成されている。冷蔵室吸込口24は、第2収納容器5cの後壁5c3と、内壁パネル17との間に形成されている。冷蔵室吸込口24と、チルド室吸込口14とは、平面視で少なくとも1部が重なっている。また、冷蔵室吸込口24は、図3に示すように、第2風路12に連通接続されている。 (Boundary wall 7)
As shown in FIG. 2, the
図4に示すように、第2収納容器5cの下方には、第2収納容器5c内の食品などの被冷却物を加熱して昇温させる加熱機構(加熱手段)として、ヒータ15が境界壁7に設置されている。ヒータ15は、被冷却物を加熱するために用いるものであり、過冷却保存の昇温工程に用いられるものである。過冷却保存では、被冷却物を冷却しすぎて凍結させてしまうことを防ぐ必要がある。そのため、冷却しすぎた被冷却物を加熱するためにヒータ15が用いられる。ヒータ15を第2収納容器5cの下方に設置することにより、第2収納容器5c内の被冷却物を効率的に昇温することができる。 (Heater 15)
As shown in FIG. 4, below the
冷凍室4は、図2に示すように、野菜室3の下側に設けられ、貯蔵品を収納するための空間を有し、特に、該貯蔵品を冷凍するものである。冷凍室4は、0℃未満の冷凍温度帯(例えば、-18℃以下)に設定された貯蔵室である。この冷凍室4には、引き出し式の扉4cが設けられている。この扉4cの開閉によって、冷凍室4と冷蔵庫1外との間の開放/遮断が行われる。 (Freezer 4)
As shown in FIG. 2, the
ここで、第2収納容器5c内の食品を過冷却状態に維持する温度環境について説明する。水が氷に変わるためには、氷結晶が成長する場が必要であり、それは小さい分子レベルでの氷核である。過冷却液体中では、揺らぎにより、分子の集合離散が繰り返され、いろいろな大きさの分子集合(クラスター)が生じていると考えられている。クラスターが非常に小さいとき、内部の分子は氷の結合状態にあるが、表面の分子は結合をもつことができず不安定で、クラスターから離脱するものもある。 [Maintaining supercooled state]
Here, the temperature environment in which the food in the
次に、図2及び図3を用いて、冷却器8で作られた冷気の流れについて説明する。なお、図において矢印は冷気の流れを示す。冷却器8で作られた冷気は、送風ファン9を通り冷蔵室2と冷凍室4とへ向かう冷気に分けられる。冷蔵室2へ向かう冷気は、第1風路10を通り、ダンパ11a及びダンパ11bによって、冷蔵室2及び第1収納容器5bと、第2収納容器5cとに向かう冷気に分けられる。そして、冷蔵室2に向かう冷気は、図1に示す吹出口17aから冷蔵室2に吹き出される。吹出口17aから冷蔵室2に吹き出された冷気は、棚21上を通り、冷蔵室2の前方で上方から下方へ下り、図4に示すチルド室5aの手前側の空間5dへと向かう。 [Cooling air flow]
Next, the flow of cold air generated by the
図5は、図4におけるC-C断面図である。図5を用いて、本発明の実施の形態2に係る冷蔵庫を説明する。図1~図4の冷蔵庫と同一の構成を有する部位には同一の符号を付してその説明を省略する。本発明の実施の形態2に係る冷蔵庫1Aでは、境界壁7内にリブ16が設けられている。リブ16は、ヒータ15の周りを囲う側壁であり、ヒータ15の高さよりも高く形成されている。図5において、ヒータ15の形状は平面視で矩形状に形成されているため、リブ16も同様に平面視で矩形状に設けられている。しかし、リブ16はヒータ15を囲うような形状であればよく、ヒータ15の形状に合わせて種々の形状に設けられても良い。
FIG. 5 is a cross-sectional view taken along the line CC in FIG. The refrigerator which concerns on
図6は、図2におけるF部拡大図である。図6を用いて本発明の実施の形態3に係る冷蔵庫を説明する。図1~図5の冷蔵庫と同一の構成を有する部位には同一の符号を付してその説明を省略する。本発明の実施の形態3に係る冷蔵庫1Bでは、吹出口17cの上縁が仕切板6の下面に接している。これにより、吹出口17cからチルド室5aに流入した冷気はコアンダ効果により仕切板6に沿って流れるため、第2収納容器5c内に冷気を行き渡らせることができ、温度分布のばらつきを抑制することができる。その結果、第2収納容器5c内の広範囲で過冷却保存を行うことができる。
FIG. 6 is an enlarged view of a portion F in FIG. The refrigerator which concerns on
図7は、図1におけるG部拡大図である。図8は、図7におけるD-D断面図である。図7及び図8を用いて本発明の実施の形態4に係る冷蔵庫を説明する。図1~図6の冷蔵庫と同一の構成を有する部位には同一の符号を付してその説明を省略する。本発明の実施の形態4に係る冷蔵庫1Cでは、第2収納容器5cの温度を検出するサーミスタ20を更に備え、サーミスタ20が、第2収納容器5cの後壁5c3と内壁パネル17との間に設置されている。第2収納容器5c内の温度調節は、ヒータ15出力とダンパ11aの冷気の風量調節で行っており、それらは吹出口17cの下縁より低く、第2収納容器5cの後壁5c3と同等以上の高さに設置されたサーミスタ20による検出温度に基づいて制御されている。
FIG. 7 is an enlarged view of a portion G in FIG. 8 is a cross-sectional view taken along the line DD in FIG. A refrigerator according to
Claims (9)
- 冷蔵温度帯に設定され、被冷却物を収納する冷蔵室と、
前記冷蔵室内に設けられ、被冷却物を凍結温度以下の過冷却温度に保冷する過冷却保冷室と、
前記冷蔵室の下方に設けられ、前記過冷却保冷室と隣接し、前記冷蔵室よりも設定温度が高い野菜室と、
前記野菜室と前記過冷却保冷室との間に設けられる境界壁と、
前記過冷却保冷室の下方の前記境界壁に設置され、前記過冷却保冷室内の被冷却物を加熱するヒータと、
を備えた冷蔵庫。 A refrigerated room that is set in a refrigerated temperature zone and stores an object to be cooled;
A supercooled cold-reserving chamber that is provided in the refrigerator compartment and keeps the object to be cooled at a supercooling temperature below the freezing temperature;
A vegetable room provided below the refrigerator compartment, adjacent to the supercooled cold room, and having a higher set temperature than the refrigerator compartment;
A boundary wall provided between the vegetable room and the supercooled cold room;
A heater that is installed on the boundary wall below the supercooled cold chamber and heats an object to be cooled in the supercooled cold chamber;
Refrigerator equipped with. - 前記冷蔵室は、
前記過冷却保冷室の上方に設けられた天板と、
前記天板と前記過冷却保冷室との間に設けられ、前記冷蔵室よりも設定温度が低く、かつ、前記過冷却保冷室より設定温度が高い保冷室と、
を有し、
前記過冷却保冷室と前記保冷室との間に仕切板が設けられており、
前記仕切板には、前記保冷室の冷気が前記過冷却保冷室側に通り抜けるチルド室吸込口が形成されている請求項1に記載の冷蔵庫。 The refrigerator compartment is
A top plate provided above the supercooled cold room;
A cold storage chamber provided between the top plate and the supercooled cold storage chamber, having a lower set temperature than the cold storage chamber and having a higher set temperature than the supercooled cold storage chamber;
Have
A partition plate is provided between the supercooled cold room and the cold room,
The refrigerator according to claim 1, wherein the partition plate is formed with a chilled chamber suction port through which cool air in the cool chamber passes through the supercooled cool chamber. - 前記境界壁には、前記冷蔵室の冷気が吸い込まれる冷蔵室吸込口が形成されており、前記チルド室吸込口と、前記冷蔵室吸込口とは、平面視で少なくとも1部が重なる請求項2に記載の冷蔵庫。 The refrigerator wall suction port into which the cold air of the refrigerating room is sucked is formed in the boundary wall, and at least a part of the chilled room suction port and the refrigerating room suction port overlap in a plan view. Refrigerator.
- 前記保冷室は、前壁と側壁と後壁とを有する上面が開口された箱状の第1収納容器から構成されており、また、
前記過冷却保冷室は、前壁と側壁と後壁とを有する上面が開口された箱状の第2収納容器から構成されており、
前記チルド室吸込口が前記第1収納容器の後壁と、前記冷蔵室の扉と対向する位置に配置される前記冷蔵室の内壁パネルとの間に形成されており、
前記冷蔵室吸込口が前記第2収納容器の後壁と、前記内壁パネルとの間に形成されている請求項3に記載の冷蔵庫。 The cold storage chamber is composed of a box-shaped first storage container having an open top surface having a front wall, a side wall, and a rear wall, and
The supercooled cold room is composed of a box-shaped second storage container having an open top surface having a front wall, a side wall, and a rear wall,
The chilled chamber suction port is formed between a rear wall of the first storage container and an inner wall panel of the refrigerator compartment disposed at a position facing the door of the refrigerator compartment;
The refrigerator according to claim 3, wherein the refrigerator compartment suction port is formed between a rear wall of the second storage container and the inner wall panel. - 前記境界壁は、製氷用の給水タンクを更に収容する請求項1~4のいずれか1項に記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 4, wherein the boundary wall further accommodates a water supply tank for ice making.
- 前記境界壁には、前記ヒータの周りを囲い、前記ヒータの高さより高い側壁が設けられている請求項1~5のいずれか1項に記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 5, wherein the boundary wall is provided with a side wall surrounding the heater and higher than the height of the heater.
- 前記冷蔵室の扉と対向する位置に配置される前記内壁パネル内に縦方向に設けられた冷気の風路を有し、
前記内壁パネルには、前記風路から前記過冷却保冷室に通じる冷気の吹出口が形成されており、
前記仕切板の下面と、前記吹出口の上縁とが接している請求項2~6のいずれか1項に記載の冷蔵庫。 A cold air path provided in a vertical direction in the inner wall panel disposed at a position facing the door of the refrigerator compartment;
The inner wall panel is formed with a cold air outlet that leads from the air passage to the supercooled cold room,
The refrigerator according to any one of claims 2 to 6, wherein a lower surface of the partition plate is in contact with an upper edge of the air outlet. - 前記過冷却保冷室の温度を検出するサーミスタを更に備え、
前記サーミスタが、前記第2収納容器の後壁と前記内壁パネルとの間に設置されており、前記吹出口の下縁より低く、かつ、前記第2収納容器の後壁と同等以上の高さに設置されている請求項7に記載の冷蔵庫。 It further comprises a thermistor for detecting the temperature of the supercooled cold room,
The thermistor is installed between the rear wall of the second storage container and the inner wall panel, is lower than the lower edge of the air outlet, and is equal to or higher than the rear wall of the second storage container The refrigerator of Claim 7 installed in. - 前記サーミスタの設置位置と前記冷蔵室吸込口との間に、前記吹出口が形成されている請求項8に記載の冷蔵庫。 The refrigerator according to claim 8, wherein the outlet is formed between an installation position of the thermistor and the refrigerator compartment inlet.
Priority Applications (9)
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JP2018534227A JP6628886B2 (en) | 2016-08-17 | 2016-08-17 | refrigerator |
MYPI2019000670A MY193283A (en) | 2016-08-17 | 2016-08-17 | Refrigerator |
SG11201810498TA SG11201810498TA (en) | 2016-08-17 | 2016-08-17 | Refrigerator |
AU2016419453A AU2016419453B2 (en) | 2016-08-17 | 2016-08-17 | Refrigerator |
PCT/JP2016/073958 WO2018033966A1 (en) | 2016-08-17 | 2016-08-17 | Refrigerator |
TW106123183A TWI650521B (en) | 2016-08-17 | 2017-07-11 | refrigerator |
CN201721008644.0U CN207487218U (en) | 2016-08-17 | 2017-08-11 | Refrigerator |
CN201710685134.5A CN107763932B (en) | 2016-08-17 | 2017-08-11 | Refrigerator with a door |
HK18109907.3A HK1250529A1 (en) | 2016-08-17 | 2018-08-01 | Refrigerator |
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TWI664384B (en) * | 2018-10-16 | 2019-07-01 | 台灣松下電器股份有限公司 | Refrigerator |
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- 2016-08-17 SG SG11201810498TA patent/SG11201810498TA/en unknown
- 2016-08-17 MY MYPI2019000670A patent/MY193283A/en unknown
- 2016-08-17 JP JP2018534227A patent/JP6628886B2/en active Active
- 2016-08-17 WO PCT/JP2016/073958 patent/WO2018033966A1/en active Application Filing
- 2016-08-17 AU AU2016419453A patent/AU2016419453B2/en active Active
-
2017
- 2017-07-11 TW TW106123183A patent/TWI650521B/en active
- 2017-08-11 CN CN201721008644.0U patent/CN207487218U/en not_active Withdrawn - After Issue
- 2017-08-11 CN CN201710685134.5A patent/CN107763932B/en active Active
-
2018
- 2018-08-01 HK HK18109907.3A patent/HK1250529A1/en unknown
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JP2008267789A (en) * | 2008-03-10 | 2008-11-06 | Mitsubishi Electric Corp | Refrigerator |
JP2013178041A (en) * | 2012-02-28 | 2013-09-09 | Sharp Corp | Refrigerator and cooling method of the same |
JP2014156947A (en) * | 2013-02-15 | 2014-08-28 | Hitachi Appliances Inc | Refrigerator |
JP5847235B2 (en) * | 2014-05-20 | 2016-01-20 | 三菱電機株式会社 | refrigerator |
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JPWO2018033968A1 (en) * | 2016-08-17 | 2019-04-11 | 三菱電機株式会社 | refrigerator |
Also Published As
Publication number | Publication date |
---|---|
CN107763932B (en) | 2020-08-28 |
JP6628886B2 (en) | 2020-01-15 |
AU2016419453A1 (en) | 2019-01-24 |
MY193283A (en) | 2022-09-30 |
JPWO2018033966A1 (en) | 2019-03-28 |
TWI650521B (en) | 2019-02-11 |
AU2016419453B2 (en) | 2019-11-07 |
HK1250529A1 (en) | 2018-12-21 |
TW201812234A (en) | 2018-04-01 |
SG11201810498TA (en) | 2019-03-28 |
CN207487218U (en) | 2018-06-12 |
CN107763932A (en) | 2018-03-06 |
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