JP5502548B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator, and more particularly, to a refrigerator including a freezing room in which a resin-made drawer container is disposed.

  In recent years, as a usage form of a refrigerator, home freezing is often performed in which foods purchased in bulk are stored frozen or foods cooked in advance are frozen.

  When performing such home freezing, a storage room that can be cooled to a freezing temperature range is used in recent refrigerators in order to prevent deterioration of stored products that have already been frozen and stored due to the heat of stored products that are to be stored frozen. A proposal has been proposed in which the (second freezer compartment) is provided independently of the freezer compartment.

  The second freezer compartment of the refrigerator is closed by a drawer-type door with a support frame for supporting the storage container fixed on the back side, and the drawer provided in the second freezer compartment as the door opens. It is comprised so that a container may be pulled out outside a warehouse. The drawer container disposed in the second freezer compartment is composed of a box-shaped resin molded body having an open top surface, and absorbs heat more efficiently than stored items stored in the second freezer compartment. In some cases, a heat insulating material, a cold storage agent, and an aluminum plate are sequentially laminated (see, for example, Patent Document 1).

JP 2005-308294 A

  However, in the refrigerator of Patent Document 1, since a plate formed of a good heat conductive material is arranged on the inner bottom surface of the drawer container, the heat of a new stored item is made in the second freezer compartment. It is easy to be conducted to other stored items that are frozen and stored in the second freezer compartment through the plate, and there is a possibility that the stored items that are already frozen and stored are deteriorated.

  The present invention has been made in consideration of the above problems, and can absorb heat more efficiently than a stored item stored in a freezer, and heat is not easily conducted to other stored items. It is characterized by providing a refrigerator that does not deteriorate stored goods.

The refrigerator according to the present invention is a refrigerator having a freezing room in which a drawer container is disposed, and a refrigerator or ceramics tray placed on the inner bottom surface of the drawer container , wherein the tray is provided with a through hole. And an air flow path is formed between the tray and the drawer container .

  In the present invention, the above configuration can absorb heat more efficiently than a stored product stored in a freezer compartment without deteriorating a stored product that has already been frozen and stored.

It is a perspective view which shows the state which opened the refrigerator compartment door and the 2nd freezer compartment door in the refrigerator which concerns on the 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the refrigerator of FIG. It is a disassembled perspective view of the drawer container of the refrigerator of FIG. It is a disassembled perspective view of the drawer container of the refrigerator which concerns on the 2nd Embodiment of this invention. It is sectional drawing which expands and shows the principal part of the refrigerator which concerns on the 2nd Embodiment of this invention.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 and 2, the refrigerator 1 of the present embodiment is filled with a foam heat insulating material 4 between an outer box 2 and an inner box 3 to form a heat insulating box, and the inside of the storage room is insulated. The wall 5 partitions the upper refrigerator compartment 6 and the lower frozen space 7.

  The front opening of the refrigerator compartment 6 is closed by a double door left and right door 8, and the upper part inside the refrigerator compartment 6 is a refrigerator compartment 10 provided with a plurality of mounting shelves 9. Below the refrigerated storage room 10 is partitioned by a ceiling partition plate 12 that also serves as a mounting shelf made of transparent resin, an independent space is formed, and a drawer-type vegetable container 13 is arranged inside the vegetable room 11. . Furthermore, a cold room 15 for cooling the room to about 0 to −3 ° C. is disposed at the lowermost part in the refrigerator compartment 6 via a partition bottom plate 14 that forms the bottom surface of the vegetable room 11.

  In the freezing space 7, a vertical partition plate 20 that divides the front surface to the left and right is disposed immediately below the heat insulating partition wall 5, and an ice making chamber 18 that includes an automatic ice making device is disposed on one side (left side) of the vertical partition plate 20. The second freezer compartment 19 that can be cooled to the freezing temperature, for example, is disposed on the other side (right side) of the vertical partition plate 20. In the lower part of the ice making room 18 and the second freezing room 19, a freezing room 22 is arranged via a horizontal partition plate 21 that divides the front face up and down.

  And in the back surface part of the refrigerator compartment 6 and the refrigerating space 7, the refrigeration cooler 28, the refrigerating cooler 29, and the fans 30, 31 corresponding to each cooler are respectively arranged, and each cooler 28, The cool air generated at 29 is introduced into the respective storage chambers via the ducts by the fans 30 and 31, and is cooled.

  The refrigeration cooler 28 and the refrigeration cooler 29 are cooled by alternately guiding the refrigerant discharged from the compressor 32 provided in the lower portion of the refrigerator 1 by a refrigeration cycle (not shown). The cold air whose temperature has been lowered by heat exchange with the refrigeration cooler 28 is blown into the refrigeration room 6 by the fan 30, thereby cooling the refrigeration storage room 10 and the vegetable room 11 to an appropriate temperature. A part of the cool air from the refrigeration cooler 28 is directly introduced into the low temperature chamber 15, and cools the inside of the low temperature chamber 15 to a temperature lower than that in the refrigeration chamber 6.

  In the refrigeration operation, the refrigerant is directly introduced into the refrigeration cooler 29, evaporates at a low evaporation temperature, and the cold air having a low temperature of −20 ° C. or less due to heat exchange is refrigerated in the refrigeration space 7 by the fan 31. Each chamber is cooled to a predetermined temperature by being blown into the chamber 22 or the ice making chamber 18.

  The control device compares the temperature in the refrigerator compartment 6 and mainly the temperature in the freezer compartment 22 and operates the compressor 32 and the fans 30 and 31. Further, switching between the refrigeration operation and the refrigeration operation is performed when each indoor temperature during cooling reaches a predetermined temperature, for example, the detection temperature of the refrigeration room temperature sensor reaches 0 ° C., the detection temperature of the freezer temperature sensor reaches −20 ° C., Alternatively, when the cooling operation time is a predetermined time, for example, 15 to 20 minutes for the refrigeration operation and 30 to 40 minutes for the refrigeration operation, the three-way valve is operated to switch to the other cooling operation and controlled to operate alternately. doing.

  In the refrigerator 1 having such a configuration, the amount of cold air introduced is adjusted by controlling the operation of the refrigeration cycle and the opening and closing of a cold air damper (not shown) disposed on the back surface of the second freezer compartment 19, and the second freezer compartment 19. The inside temperature is controlled to be an arbitrary freezing temperature such as a freezing temperature of −17 ° C. or lower or a weak freezing temperature of about −9 ° C. In addition, the refrigerator 1 has a quick cooling function for controlling the refrigeration cycle and the fan 31 to be continuously operated according to the user's arbitrary designation and rapidly cooling the second freezer compartment 19 to a desired cooling temperature. ing.

  The second freezer compartment 19 contains a drawer container 24 therein, and the drawer container 24 is attached to a support frame (not shown) fixed to the indoor side of a drawer-type door 19 a that closes the front opening of the second freezer compartment 19. Is supported. Thereby, the drawer container 24 is pulled out with the opening operation of the drawer-type door 19a, and the stored item is stored and taken out from the upper surface opening. As shown in FIG. 3, a plate-shaped receiving tray 40 having a thickness of about 10 to 20 mm is disposed on the inner bottom surface of the drawer container 24 as shown in FIG. In this embodiment, the tray 40 is disposed on the entire inner bottom surface of the drawer container 24. However, the tray 40 may be disposed on a part of the inner bottom surface such as the front half of the inner bottom surface of the drawer container 24.

  As described above, in the refrigerator 1 of the present embodiment, the pottery or ceramic tray 40 is disposed on the inner bottom surface of the drawer container 24 disposed in the second freezer compartment 19. The pot 40 made of earthenware or ceramics has a lower thermal conductivity and a larger heat capacity than that of a metal material such as aluminum, so that the heat of the stored item placed on the tray 40 causes the tray 40 to be heated. Therefore, it is difficult to conduct to other stored items, and the newly placed stored items can be quickly cooled by the large heat capacity.

  Further, every time warm food or the like is stored in the second freezer compartment 19, when heat from the food is repeatedly applied to the drawer container 24, the drawer container 24 is deformed, discolored, or cracked if it is a resin molded body. However, in the refrigerator 1 of the present embodiment, since the ceramic or ceramic tray 40 having a large heat capacity is disposed on the inner bottom surface of the drawer container 24, the storage placed on the tray 40 is stored. Heat from the product is less likely to be transferred to the drawer container 24, and the drawer container 24 is less likely to be deformed, discolored, cracked, or the like.

  Furthermore, in the refrigerator 1 of this embodiment, since it is not necessary to laminate | stack multiple materials, such as laminating | stacking a metal material and a cool storage agent, it can manufacture at low cost.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to the drawings.

  The difference between the present embodiment and the first embodiment described above is that a through hole 42 is provided in the tray 40.

  That is, as shown in FIGS. 4 and 5, the through-hole 42 has, for example, an oval shape, and the flow of cold air blown forward from the back of the second freezer compartment 19 corresponding to the front-rear direction of the refrigerator 1. They are provided side by side in the direction (the direction indicated by the arrow X in the figure).

  Further, a concave portion 44 that sinks upward is provided on the lower surface of the tray 40 that faces the inner bottom surface 24 a of the drawer container 24. The concave portion 44 is fitted with the upper end portion of the convex portion 25 protruding upward from the inner bottom surface 24 a of the drawer container 24. As a result, the tray 40 forms an air flow path F between the inner bottom surface 24a of the drawer container 24 and is positioned at a predetermined position of the drawer container 24 as shown in FIG.

  In the state where the tray 40 is positioned and arranged with respect to the drawer container 24 as described above, the rear end portion 40a of the tray 40 is separated from the inner bottom surface 24a and the back surface 24b of the drawer container 24. And the inlet 46 which introduces the cold air blown from the back surface of the 2nd freezer compartment 19 into the air flow path F formed under the saucer 40 includes the rear end 40a of the saucer 40 and the inner bottom surface 24a of the drawer container 24. Is formed between.

  Further, the inner bottom surface 24a of the drawer container 24 is inclined so as to become lower toward the front of the refrigerator 1, and a liquid reservoir portion 26 that is depressed downward is formed at the front end portion of the inner bottom surface 24a.

  In the refrigerator 1 of the present embodiment, the saucer 40 is made of ceramics or ceramics, and is thicker and heavier than a metal saucer such as aluminum, but the saucer 40 is provided with a through hole 42. Therefore, the weight can be reduced, and the material usage of the tray 40 can be reduced to reduce the manufacturing cost.

  Moreover, in the refrigerator 1 of this embodiment, the saucer 40 provided with the through hole 42 is disposed at a predetermined interval from the inner bottom surface 24 a of the drawer container 24, and an air flow path F is formed below the saucer 40. . Therefore, a part of the cold air blown out from the outlet 34 provided on the back surface of the second freezer compartment 19 into the second freezer compartment 19 flows into the drawer container 24 and flows not only through the tray 40 but also introduced. Since it also distribute | circulates also in the air flow path F from the opening | mouth 46, the receiving tray 40 can be cooled efficiently and by extension, the stored goods mounted in the receiving tray 40 can also be cooled efficiently.

  And since the through-hole 42 provided in the saucer 40 is provided along with the flow direction X of the blown-out cold air, the cold air blown forward from the blower outlet 34 is above the saucer 40 and You can go back and forth freely. Therefore, the flow of the cold air blown out from the outlet 34 is not easily blocked by the stored item placed on the tray 40, and the air in the vicinity of the stored item is less likely to stay, and the stored item can be efficiently cooled. .

  Further, in the refrigerator 1 of the present embodiment, since the through hole 42 is provided in the tray 40, when liquid spills on the tray 40, the spilled liquid passes through the through hole 42 and reaches the inner bottom surface 24 of the drawer container 24. Until. However, since the inner bottom surface 24a of the drawer container 24 is inclined so as to become lower toward the front of the refrigerator 1 and the liquid reservoir portion 26 is formed at the front end portion of the inner bottom surface 24a, the liquid spilled on the tray 40 is Then, it flows out toward the front and collects in the liquid reservoir 26, so that the drawer container 24 can be easily cleaned.

  In addition, except the above-mentioned structure and effect, it is the same as that of 1st Embodiment, and detailed description is abbreviate | omitted.

DESCRIPTION OF SYMBOLS 1 ... Refrigerator 2 ... Outer box 3 ... Inner box 4 ... Foam insulation material 5 ... Heat insulation partition wall 6 ... Refrigeration room 7 ... Frozen space 8 ... Door 9 ... Mounting shelf 10 ... Refrigerated storage room 11 ... Vegetable room 12 ... Ceiling partition Plate 13 ... Vegetable container 14 ... Partition bottom plate 15 ... Low temperature chamber 18 ... Ice making chamber 19 ... Second freezing chamber 24 ... Drawer container 26 ... Liquid reservoir 40 ... Sauce pan 42 ... Through hole

Claims (4)

In a refrigerator including a freezing chamber in which a drawer container is disposed, in a refrigerator in which a ceramic or ceramic tray is placed on the inner bottom surface of the drawer container ,
The refrigerator is characterized in that a through hole is provided in the tray, and an air flow path is formed between the tray and the drawer container . The refrigerator according to claim 1 , wherein the plurality of through holes are provided in the tray side by side in the cold air flow direction. The receiving tray has a rear end portion disposed away from the bottom surface and the back surface of the drawer container, and an introduction port for introducing air into the air flow path is formed between the rear end portion of the tray and the bottom surface of the drawer container. the refrigerator according to claim 1 or 2, characterized in that it is. The refrigerator according to any one of claims 1 to 3 , wherein the bottom of the drawer container is inclined so as to be lowered forward, and a liquid reservoir is provided at a bottom front end of the drawer container. .

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