JPH1082575A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a temperature distribution in food cases provided at upper and lower stages by forming the upper stage side case with a double bottom, providing a ventilation passage for ventilating cold air in a space formed by the bottom, and supplying the cold air into the lower stage side case via the passage. SOLUTION: Cold air sucked from a cold air suction port 63 is sprayed to a partition wall 6 via a cooler 51 by a fan 52 for a blower. The sprayed cold air is diffused to an air duct A formed of an upper part partition wall 71 and a partition plate 8 via an outlet hole 61 formed at a deep freezing chamber side under the guidance of a guide plate 9a additionally provided at a bell mouth 10 and a guide plate 9b additionally provided at the wall 6, and diffused from a outlet 81 toward one lace in a food case 35 of an upper stage side. Meanwhile, the cold air sprayed to the wall 6 is diffused from a gas outlet hole 62, and diffused from an outlet 35c provided in the entire width of a bottom to the entire width in a food case 34 of a lower stage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for cooling food by sending cold air circulating forcibly to at least upper and lower food boxes provided in the refrigerator, and more particularly to improving the temperature distribution. .

[0002]

2. Description of the Related Art FIG. 7 is a front view of a refrigerator having two drawer-type freezer compartments, and FIG. 8 is a longitudinal sectional view thereof.
FIG. 9 is a state diagram in which the drawer-type freezer compartment is enlarged and the flow of cool air in the freezer compartment is indicated by arrows.

In the figure, 1 is a refrigerator main body, 2 is a refrigerator room located at the top of the refrigerator main body 1, 3 is a drawer type freezing room located at the center of the refrigerator main body 1, and 4 is a vegetable room. Reference numeral 5 denotes a cooling chamber provided behind the freezing chamber 3; 51, a cooler disposed in the cooling chamber 5; 52, a fan provided above the cooling chamber 5 for forcibly circulating cool air in the cooling chamber 5; The motor 53 rotates. 6 is a freezing room 3 and a cooling room 5
Blowing holes 61 and 62 for blowing out cold air forcedly circulated by the fan 52, and a suction hole 63 for sucking cool air that has cooled the inside of the freezing room 3 into the cooling room 5 are provided. . Reference numeral 7 denotes a partition wall that separates the refrigerator compartment 2, the freezer compartment 3, and the vegetable compartment 4, and has a partition wall 71 that partitions the refrigerator compartment 2 from the freezer compartment 3, and a partition wall 72 that partitions the freezer compartment 3 from the vegetable compartment 4. doing. 21 is a refrigerator compartment door, 31 is an upper drawer type freezer compartment door, 32 is a lower drawer type freezer compartment door, and 41 is a vegetable compartment door. Reference numeral 33 denotes an upper food box vertically installed so as to be able to be pulled out into the freezing compartment 3, and reference numeral 34 denotes a lower food box.

Next, the flow of cold air in the conventional freezing room 3 will be described. The cool air cooled by the cooler 51 of the cooling chamber 5 is forcibly blown out to the freezing chamber 3 by the fan 52. At this time, the flow of the cool air is blown out by a blow hole 6 provided in a partition wall 6 of the cooling chamber 5 as shown by an arrow in the figure.
The cold air blown out of the food boxes 1 and 62 passes around and partially inside the food boxes 33 and 34 to cool the food boxes 33 and 34, and then passes through the suction holes 63 provided in the partition wall 6 to form a cooling chamber. The circulation returning to 5 is performed.

[0005]

Since the conventional refrigerator is configured as described above, the cool air from the cooling chamber 5 mainly flows around the food boxes 33 and 34 to cool the food boxes 33 and 34. However, some parts of the food box were directly hit by cold air and some were not, and the temperature of the food box was biased.

The present invention has been made to solve such a problem, and has as its object to improve the temperature distribution in food boxes provided in two upper and lower tiers.

[0007]

According to the present invention, there is provided a refrigerator for cooling food stored in upper and lower food boxes by circulating cool air generated by a cooler into a refrigerator. The upper food box is formed in a double bottom, and a ventilation path for passing the cool air is provided in a space formed by the double bottom, and the cool air is sent to the lower food box via the ventilation path. It is like that.

Further, the double bottom of the upper food box is formed by a tray for placing food inside the upper food box and the bottom of the upper food box.

In addition, when the cool air is sent into the lower food box via the ventilation passage, the cool air is blown out from a full width outlet provided on the surface facing the lower food box. is there.

In addition, when the cool air is sent into the lower food box via the ventilation passage, the cool air is blown out from one outlet provided on the surface facing the lower food box. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a longitudinal sectional view of the refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a state diagram in which the drawer-type freezer compartment in the present embodiment is enlarged, and the flow of cool air in the freezer compartment is indicated by arrows. FIG. 3 is a vertical cross-sectional view of the freezer compartment in the present embodiment. FIG.
It is the figure which showed the guide mechanism for leading the cool air blown out from a cooling room to the freezing room of an upper stage.

In the figure, 1 is a refrigerator main body, 2 is a refrigerator room located on the upper part of the refrigerator main body 1, 3 is a drawer type freezing room located in the center of the refrigerator main body 1, and 4 is a vegetable room. Reference numeral 5 denotes a cooling chamber provided behind the freezing chamber 3; 51, a cooler disposed in the cooling chamber 5; 52, a fan provided above the cooling chamber 5 for forcibly circulating cool air in the cooling chamber 5; The motor 53 rotates. 6 is a freezing room 3 and a cooling room 5
Blowing holes 61 and 62 for blowing out cold air forcedly circulated by the fan 52, and a suction hole 63 for sucking cool air that has cooled the inside of the freezing room 3 into the cooling room 5 are provided. . Reference numeral 7 denotes a partition wall that separates the refrigerator compartment 2, the freezer compartment 3, and the vegetable compartment 4, and has a partition wall 71 that partitions the refrigerator compartment 2 from the freezer compartment 3, and a partition wall 72 that partitions the freezer compartment 3 from the vegetable compartment 4. doing.

Reference numeral 8 denotes a partition plate which forms an air passage A between the partition plate 71 and an upper partition wall 71 and which blows cool air from the cooling chamber 5 into an outlet 81.
The air is blown out toward one location in the food box 35 on the upper side. Reference numeral 9 denotes a guide member for guiding the cool air blown out from the cooling chamber 5 through the outlet holes 61 to the partition plate 8, and a bell mouth 10 which is a member for attaching the fan 52 and the blower motor 53 to the partition wall 6. Guide 9 added to
a, a guide 9b added to a partition wall 6 between the freezing room 3 and the cooling room 5;

Reference numeral 21 denotes a refrigerator compartment door, 31 denotes an upper drawer type freezer compartment door, 32 denotes a lower drawer type freezer compartment door, and 41 denotes a vegetable compartment door. Reference numeral 35 denotes an upper food box vertically installed so as to be able to be pulled out into the freezing compartment 3, and reference numeral 34 denotes a lower food box. The upper food box 35 is formed by injection molding in which a resin is poured into a mold, and a metal or plastic tray 35a such as aluminum or the like for placing food is placed inside the food box 35. , The bottom 35B of the food box 35 forms the air path B.

Next, the operation of the first embodiment will be described with the flow of cold air indicated by arrows in the figure. Freezing room 3 and cooling room 5
The cool air sucked from the cool air suction port 63 provided in the partition wall 6 passes through a cooler 51 provided in the cooling chamber 5 between the bell mouth 10 and the inner box, and is used for a blower rotated by a blower motor 53. It is sprayed on the partition wall 6 by the fan 52. The blown cold air is blown out from a guide plate 9a additionally provided on the bell mouth 10 and a guide plate 9b additionally provided on the partition wall 6 to the blowout hole 6 formed on the freezer compartment side.
1, the air is blown out to the air passage A formed by the upper partition wall 71 and the partition plate 8, and is blown out from the outlet 81 toward one location in the upper food box 35. At this time, since the air path configuration by the partition wall 6 and the bellmouth 10 is directed in the flow direction of the cool air, the resistance is lower than that in the case where the duct is formed in the upper partition wall 71 to send the cool air. It is possible to send cold air. Further, the cool air blown out from the blowout hole 61 flows around the food box 35 as well as the conventional one in addition to the air path A.

On the other hand, the cool air blown to the partition wall 6 is blown out from a blow hole 62 provided in the partition wall 6, and cools the tray 35a through the air path B while blowing the cool air 35c provided in the entire width of the bottom. Is blown out to the full width in the lower food box 34. Since the cool air is also in direct contact with the tray 35a, the cooling efficiency of the upper food box 35 is further improved. Airway B
May be forcibly blown out from only one location to the lower food box. The cold air blown out from the blowout hole 62 is supplied to the food box 34 in the same manner as in the related art in addition to the air passage B.
Also flows around.

According to the first embodiment, the cool air generated by the cooler 5 can be directly sent to one location in the upper food box 35, and the cool air can be spread evenly in the food box 35. It is possible to improve the temperature distribution in the food box 35 (improve the cooling characteristics), prolong the storage of the food, and achieve an energy saving effect because the food is uniformly cooled. In addition, the cold air is evenly distributed to the lower food box 34 via the air path B formed by the injection-formed upper food box 35 and the tray 35a, and the same effect as described above is obtained. be able to. Furthermore, even if the bottom part 35b of the food box 35 is formed into a complicated shape by injection molding, the air path B is formed by the arrangement of the tray 35a created in another process, so that the food box 35 having the complicated air path B can be easily formed. Can be manufactured.

Embodiment 2 FIG. In the first embodiment described above, a metal or plastic tray is disposed in the injection-formed food box 35 in order to form the air passage B through which the cool air flows for even cooling.
5, the air passage B is formed with the bottom 35b, but as in the second embodiment, the drawer-type freezer compartment of FIG. 5 is enlarged, and the flow of cool air in the freezer is shown in the state diagram indicated by arrows. As described above, the tray 36a may be integrally formed with the food box 36 by injection.

According to the second embodiment, since the formation of the air passage B through which the cool air flows can be performed simultaneously with the step of molding the food box 35 by injection, the number of working steps can be reduced.

Embodiment 3 Further, in the third embodiment, the bottom portion 37b of the food box 37 is moved to the bottom of the food box 37 as shown in the state diagram of the drawer-type freezer compartment shown in FIG. The air path cover 37d formed so as to be a mounting place and manufactured in a separate process is joined by an adhesive, a screw, a caulking member, or the like as a joining member,
The air path B may be formed by the bottom 37b and the air path cover 37d.

According to the third embodiment, the air path cover 37b having a complicated shape for forming the air path B through which the cool air flows can be easily manufactured in another process. Further, the food box 37 on the upper side may have a simple structure similar to the conventional one, and there is no need to newly manufacture a mold or the like for forming the injection, thereby reducing the manufacturing cost.

[0022]

As described above, the present invention has the following advantages.

In a refrigerator that cools the food stored in the upper and lower food boxes by circulating cool air generated by the cooler in the refrigerator, the upper food box is formed in a double bottom. A ventilation path is provided in the space formed by the double bottom to allow cool air to pass through, and cold air is sent to the lower food box via this ventilation path, so that the cool air spreads evenly inside the food box and the food box The temperature distribution in the inside can be made good, and the preservation of food can be prolonged.

Further, since the double bottom of the upper food box is formed by the tray for placing food inside the upper food box and the bottom of the upper food box, the bottom of the upper food box is Even as a complicated shape by injection molding,
Since the ventilation path is formed by the arrangement of the trays created in a separate process, a double bottom food box having a complicated ventilation path can be easily manufactured.

Further, when the cool air is sent into the lower food box via the ventilation passage, the cool air is blown out from the full width outlet provided on the surface facing the lower food box. Cold air is evenly distributed in the food box, and the temperature distribution in the food box can be further improved.

When the cool air is sent into the lower food box via the ventilation passage, the cool air is blown out from one outlet provided on the surface facing the lower food box. Can be evenly distributed in the food box, and the temperature distribution in the food box can be further improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a refrigerator according to Embodiment 1 of the present invention.

FIG. 2 is a longitudinal sectional side view of the freezer compartment of the refrigerator according to Embodiment 1 of the present invention.

FIG. 3 is a vertical sectional side view of a freezer compartment of the refrigerator in the first embodiment of the present invention.

FIG. 4 is an enlarged longitudinal sectional side view of a main part of a freezer compartment of the refrigerator according to Embodiment 1 of the present invention.

FIG. 5 is a longitudinal sectional side view of a freezer compartment of a refrigerator according to Embodiment 2 of the present invention.

FIG. 6 is a longitudinal sectional side view of a freezer compartment of a refrigerator according to Embodiment 3 of the present invention.

FIG. 7 is a front view of a refrigerator according to the related art and the present invention.

FIG. 8 is a longitudinal sectional view of a conventional refrigerator.

FIG. 9 is a longitudinal sectional side view of a freezer compartment of a conventional refrigerator.

[Explanation of symbols]

1 refrigerator body, 2 refrigerator compartment, 3 freezer compartment, 4 vegetable compartment,
5 cooling room, 6 partition wall, 7 partition wall, 8 partition plate,
9 Guide member, 10 bell mouth, 21 Refrigerator compartment door, 31, 32 Freezer compartment door, 34 Food box on lower side,
35, 36, 37 Upper food box, 35a, 36a tray, 35b, 37b Bottom, 35c blow hole, 37d
Airway cover, 41 Vegetable room door, 51 Cooler, 52
Fan, 53 Blower motor, 61, 62 Blow-out hole, 63 Suction hole, 81 Blow-out hole.

Claims (4)

[Claims] 1. A refrigerator for cooling food stored in upper and lower food boxes by circulating cold air generated by a cooler in a refrigerator, wherein the upper food box is formed in a double bottom. A refrigerator provided with a ventilation path through which the cool air flows in the space formed by the double bottom, and sending the cool air into the lower food box via the ventilation path. 2. The food container according to claim 1, wherein the double bottom of the upper food box is formed by a tray for placing food inside the upper food box and a bottom of the upper food box. The refrigerator as described. 3. When the cool air is fed into the lower food box via the ventilation path, the cool air is blown out from a full width outlet provided on the surface facing the lower food box. The refrigerator according to claim 1 or 2. 4. When the cool air is sent into the lower food box via the ventilation passage, it is provided on the surface facing the lower food box.
The refrigerator according to claim 1 or 2, wherein cool air is blown out from one outlet.