JP2002295947A - Freezer/refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a freezer/refrigerator in which articles stored in a container within a freezing chamber can be cooled sufficiently. SOLUTION: The freezer/refrigerator comprises upper and lower containers each having an upper surface opening disposed in the freezing chamber wherein an opening for leading out chill is made at a lower part of the front face of the upper container. Chill introduced from the upper surface opening of the upper container passes through the upper container and enters the freezing chamber from the opening at a lower part of the front face and then flows through the freezing chamber while cooling articles stored in the upper container sufficiently. Since chill flow to the upper opening part on the inside of a door is retarded, inflow of heat from that part is prevented and energy efficiency can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a plurality of containers in a freezer compartment.

[0002]

2. Description of the Related Art A conventional refrigerator of this type is disclosed in
000-88432. The refrigerator described in this publication includes a refrigerator compartment, a vegetable compartment, and a freezer compartment. In this freezer compartment, two containers are arranged above and below, and each of these containers can store frozen foods and the like. there were.

A refrigerator of the same type as this refrigerator will be described with reference to FIG.

[0004] In Fig. 4, reference numeral 51 denotes a refrigerator-freezer, 52 denotes a refrigerator room, 53 denotes a vegetable room, 54 denotes a switching room, 55 denotes a freezing room, and 5 denotes a freezing room.
6, 57, 58 and 59 are doors for a refrigerator room, a vegetable room, a switching room, and a freezing room, respectively. Reference numeral 60 denotes a refrigeration fan, 61 denotes a refrigeration evaporator, 62 denotes a refrigeration fan, 63 denotes a refrigeration evaporator, and 64 denotes a refrigerant compressor. 65 and 66 are an upper container and a lower container, and these containers are arranged up and down. 67 is an upper air duct for introducing cool air into the upper container, 68 is a lower air duct for introducing cool air to the lower container, and 69 is a return duct.

[0005] In the freezer refrigerator 51 thus configured, cool air is introduced into the freezer compartment 55 from the upper air duct 67 and the lower air duct 68. In the upper container 65, cool air is introduced from an opening on the upper surface thereof, and after cooling the internal storage, cool air flows into the freezing compartment 55 from the opening on the front side.

Further, in the lower container 66, cool air is introduced from the lower air duct 68 to cool the internal storage, and then cool air flows into the freezing compartment 55 from the opening at the front.

Then, the freezing room 55 is removed from the two containers 65 and 66.
The cool air flowing inside descends on the front side of the freezing room, and
6 and return duct 69 from refrigeration evaporator 6
3 is introduced.

[0008]

SUMMARY OF THE INVENTION The aforementioned refrigerator-freezer 5
In the first freezer compartment 55, since the cold air flowing in the containers 65 and 66 does not flow so as to penetrate the containers, the storage near the bottom in the containers 65 and 66 is sufficiently cooled by the cold air. However, there was a drawback that it was not possible or that it took time to cool. Further, at the inside opening portion of the door 59, particularly at the upper end portion X and the lower end portion Y, although a door packing or the like is attached and insulated, heat is relatively large from this portion, and this portion is cooled. Flowing was a major factor in the flow of heat.

[0009] The present invention provides a refrigerator-freezer that can sufficiently cool the storage in a container in a freezer compartment.

[0010]

According to the present invention, a refrigerator compartment and a freezer compartment are formed by partitioning the inside of a heat insulating box, and an upper container and a lower container having an upper surface opening are arranged vertically in the freezer compartment. A refrigerator configured to introduce cool air from the upper opening of the lower container and configured to draw cool air from the outside of the rear surface of the lower container, wherein the cool air is discharged to the lower part on the front side of the upper container outside the upper container. An opening to be led out is formed.

[0011] Further, a refrigerator compartment and a freezer compartment are formed by partitioning the heat insulating box body, and an upper container and a lower container having an upper opening are arranged vertically in the freezer compartment, and cool air is introduced from the upper opening of the upper container. In the refrigerator-freezer configured to draw cold air from outside the back of the lower container, a plurality of openings for drawing cool air are formed on the bottom surface of the upper container. An opening is formed in the lower rear portion for drawing cool air out of the lower container.

Further, a refrigerator compartment and a freezer compartment are formed by partitioning the inside of the heat-insulating box, and an upper container and a lower container having an upper opening are arranged vertically in the freezer compartment, and cool air is introduced from the upper opening of the upper container. In the refrigerator-freezer configured to draw cold air from outside the rear surface of the lower container, a plurality of openings for drawing cool air are formed on the bottom surface of the upper container, and a lower rear portion of the lower container is formed. Close to the back of the freezer compartment, the upper back of the lower container is positioned more front than the lower back, and between the lower end of the upper back and the upper end of the lower back, cold air is discharged outside the lower container during operation. And an opening for introducing cool air when the operation is stopped.

[0013]

Embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a refrigerator-freezer according to an embodiment of the present invention.

FIG. 1 is a schematic view showing a cross section of a main part of a refrigerator-freezer according to a first embodiment.

Reference numeral 1 denotes a refrigerator-freezer, which partitions the inside of the heat-insulating box 2 to form a refrigerator room (for example, a storage room controlled at about 3 ° C.) 3, a vegetable room 4, a switching room 5, and a freezing room ( For example, a storage room 6 controlled at about −20 ° C. is formed. 7 is a refrigerator room door, 8 is a vegetable room door, 9 is a switching room door,
Reference numeral 10 denotes a freezer door.

Reference numeral 11 denotes a refrigeration fan, 12 denotes a refrigeration evaporator, 13 denotes a refrigeration fan, 14 denotes a refrigeration evaporator, and 15 denotes a refrigerant compressor. This refrigerant compressor is annularly connected to a condenser (not shown), a decompression device (not shown), and evaporators 12 and 14 by refrigerant pipes, and forms a refrigeration circuit.

16 is an upper container disposed in the freezing room 6,
Reference numeral 17 denotes a lower container disposed below the upper container.
The upper container 16 and the lower container 17 are box-shaped containers whose upper parts are opened. Both of these containers are slidably attached to, for example, rails inside the freezer 6. Reference numeral 18 denotes an opening formed at the lower part of the front surface of the upper container. The shape of the opening is not limited as long as it is an opening through which cool air passes, such as a round hole, a long hole, or a slit. In addition, the opening 18 is provided with a cage or the like in the upper container 16 so as not to be blocked by frozen food or the like, or a projection around the opening 18 so as not to block the opening. Etc. are provided (neither is shown).

Reference numeral 19 denotes an opening of the lower container facing the opening 18 and is formed on the front upper portion of the lower container. 20 is an upper air duct for supplying cool air from the upper part of the upper container 16, 21 is a lower air duct for supplying cool air from the upper back of the lower container to the opening of the lower container 17, and 22 is the bottom surface of the lower duct. Is a return duct formed along. X is the upper end of the inner opening of the door, Y is the lower end,
These upper and lower end portions X and Y are portions into which heat flows relatively large even when the door 10 is closed.

Next, the flow of cold air in the freezer compartment 6 of the refrigerator 1 having the above-described structure will be described.

The cool air cooled by the refrigerating evaporator 14 is introduced into the upper container 16 and the lower container 17 from the upper air duct 20 and the lower air duct 21.

From the upper ventilation duct 20, cold air is introduced into the upper container 16 downward from a plurality of openings like a shower. The cool air introduced into the upper container 16 passes through the upper container 16, passes through the opening 18, and
It flows downward through the freezer 6 inside the door 10 through the opening 19 of the lower container 17. At this time, since the cool air does not flow much to the upper end portion X, this portion is hardly cooled, and the heat flowing from the upper end portion X can be suppressed.

The cool air flowing downward through the opening 19 of the lower container 17 passes under the lower container 17, further passes between the rear surface of the lower container 17 and the rear surface of the freezer, and is sucked from the suction duct 22. . Then, the cool air sucked from the suction duct 22 is cooled again by the refrigerating evaporator 14.

The cool air introduced through the lower air duct 21 passes through the lower container 17 and is introduced through the opening 19. The cool air that has passed through the lower container 17 and is drawn out of the opening 19 merges with the cool air that has passed through the upper container 16 and flows together.

Since the openings 18 and 19 are formed, cool air flows so as to penetrate into the upper container 16, and the stored matter disposed at the bottom of the upper container 16 can be sufficiently filled similarly to the one arranged at the upper part of the container. Can be cooled.

Further, since the opening 18 of the upper container 16 can be used as a drainage port for cleaning the upper container 16, drainage can be performed without turning over the upper container 16, which is very convenient.

FIG. 2 is a schematic view showing a cross section of a main part of a refrigerator-freezer according to a second embodiment. The same or almost the same configuration as the refrigerator-freezer of the first embodiment is denoted by the same reference numeral, the description thereof will be omitted, and a different configuration will be described.

An upper container 25 has an opening 26 at the bottom thereof.
Are formed. Reference numeral 27 denotes a lower container, and an opening 28 is formed in the lower part of the back surface.

In the refrigerator having the above configuration, the cool air introduced from the upper air duct 20 is supplied to the upper container 25.
Through the lower container 2 through the opening 26 formed in the bottom surface.
7 is introduced. The cool air introduced from the opening 26 and the cool air introduced from the lower ventilation duct 21
Through the opening 28 formed in the lower part of the back surface, through the return duct 22, and flows into the refrigeration evaporator 14.

As described above, the upper container 25 and the lower container 2
Therefore, the stored contents in these containers are sufficiently cooled because cold air flows through the containers 7 and 7. In addition, since the cool air hardly flows to the upper end portion X and the lower end portion Y, the heat flowing from these portions can be suppressed.

As described above, since the stored matter in the container can be sufficiently cooled and the inflow of heat from the upper end portion X and the lower end portion Y can be suppressed, this refrigerator can prevent energy loss and Efficiency can be increased.

FIG. 3 is a schematic view showing a cross section of a main part of a refrigerator-freezer according to a third embodiment. The same or almost the same components as those of the refrigerators of the first and second embodiments are denoted by the same reference numerals, the description thereof will be omitted, and different components will be described.

Numeral 30 denotes a lower container, in which a lower rear portion 32 of the lower container is brought close to the rear surface of the freezing compartment, and an upper rear portion 31 of the lower container is located on the front side of the lower rear portion 32. An opening 33 is formed between the lower end and the upper end of the lower rear portion 32 for drawing cool air out of the lower container 30 during operation and for introducing cool air when operation is stopped. For this reason, the cold air passage 3 is formed between the upper part 31 and the rear side of the freezer compartment.
4 are formed. The cool air passage 34 communicates with the return duct 22 and further communicates with the opening 33.

In the refrigerator having the above configuration, the cool air introduced into the upper container 25 from the upper air duct 20 passes through the upper container 25 and passes through the opening 2 formed in the bottom surface.
6 flows into the lower container 30. The cool air introduced from the opening 26 and the cool air introduced from the lower air duct 21 are drawn out of the opening 33 formed on the rear surface through the lower container 30, passed through the return duct 22 through the cool air passage 34, It flows into the freezing evaporator 14.

As described above, the upper container 25 and the lower container 3
0, so that cold air flows through the container 2
The stock in 5, 30 is sufficiently cooled. Moreover, since the cool air hardly flows to the upper end portion X and the lower end portion Y, the heat flowing from these portions can be suppressed.

Further, in this refrigerator, when the refrigerator is stopped (operation of the compressor is stopped), the cooled cool air passes through the return duct 22 and the cool air passage 34 to open the lower container 30. 3 flows into the lower container 30 (see the practical arrow in FIG. 3), and the cold air
0 can be cooled, and the cold air can be effectively used when the operation is stopped.

[0036]

As described above, according to the first aspect of the present invention, since the opening for drawing out the cool air is formed in the lower portion of the upper container, the cool air introduced from the upper opening of the upper container can be cooled. The air flows into the freezer compartment from the lower opening on the front side through the inside, so that the cool air flows into the freezer compartment while sufficiently cooling the storage in the upper container. In addition, since it is difficult for the cool air to flow into the upper opening portion inside the door, the inflow of heat from this portion can be prevented, and the energy efficiency can be improved.

According to the second aspect of the present invention, a plurality of openings for drawing cool air are formed in the bottom surface of the upper container,
Since the opening of the lower container for drawing cool air out of the lower container is formed at the lower rear part of the lower container, the cool air introduced from the opening of the upper container passes through the upper container from the opening formed on the bottom surface. The cold air flows into the lower container, and further flows through the lower container to the outside of the lower container from the opening of the lower container.
As described above, the cold air flows so as to pass through the upper and lower containers, so that the stored items in both containers can be sufficiently cooled. In addition, since it is difficult for cool air to flow into the front opening portion of the upper container and the lower portion of the front surface of the lower container, it is possible to prevent heat from flowing in from this portion and improve energy efficiency.

According to the third aspect of the present invention, a plurality of openings are formed in the bottom surface of the upper container, and the upper rear portion of the lower container is located on the front side of the lower rear portion. An opening is formed between the upper container and the upper container to draw cold air out of the lower container during operation and to introduce cool air when the operation is stopped. The cold air flows from the opening formed in the lower container to the lower container, and further flows through the lower container to the outside of the lower container from the opening of the lower container. As described above, the cold air flows so as to pass through the upper and lower containers, so that the stored items in both containers can be sufficiently cooled. In addition, since it is difficult for cool air to flow into the front opening portion of the upper container and the lower portion of the front surface of the lower container, it is possible to prevent heat from flowing in from this portion and improve energy efficiency. Further, when the refrigerator-freezer is stopped, the cooled cold air flows into the lower container from the opening of the lower container through the gap between the upper rear portion of the lower container and the rear surface of the freezing chamber. It can be used effectively.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a cross section of a main part of a refrigerator of the present invention.

FIG. 2 is a schematic view showing a cross section of a main part of a refrigerator-freezer according to a second embodiment.

FIG. 3 is a schematic view showing a cross section of a main part of a refrigerator-freezer according to a third embodiment.

FIG. 4 is a schematic view showing a cross section of a main part of a conventional refrigerator-freezer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator-freezer 2 Insulated box 3 Refrigerating room 6 Freezer room 16 Upper container 17 Lower container 18 Opening 19 Opening 25 Upper container 26 Opening 27 Lower container 28 Opening 30 Lower container 31 Lower back 32 Upper back 33 Opening 33 Opening

Claims (3)

[Claims] 1. An insulated box body is partitioned to form a refrigerator compartment and a freezer compartment. In the freezer compartment, an upper container and a lower container having an upper opening are arranged vertically, and cool air is introduced from an upper opening of the upper container. With such a configuration, in a refrigerator having a configuration in which cold air is drawn out from the outside of the rear surface of the lower container, an opening for drawing cold air out of the upper container is formed in a lower front part of the upper container. Freezer refrigerator. 2. An insulated box body is partitioned to form a refrigerator compartment and a freezer compartment, and an upper container and a lower container having an upper opening are arranged vertically in the freezer compartment, and cool air is introduced from the upper opening of the upper container. In the refrigerator-freezer configured to draw cold air from outside the back of the lower container, a plurality of openings for drawing cool air are formed on the bottom surface of the upper container. A refrigerator having an opening formed at a lower rear portion thereof for leading cool air out of the lower container. 3. An insulated box body is partitioned to form a refrigerator compartment and a freezer compartment, and an upper container and a lower container having an upper opening are arranged vertically in the freezer compartment, and cool air is introduced from an upper opening of the upper container. In the refrigerator-freezer configured to draw cold air from the outside of the rear surface of the lower container, a plurality of openings for drawing cool air are formed on the bottom surface of the upper container, and the rear surface of the lower container is formed. The lower part is made to approach the back of the freezer compartment, and the upper part of the lower container is positioned more front than the lower part of the lower part. A refrigerator having an opening for introducing cool air to the cool air when the operation is stopped.