JP2003021448A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator capable of preventing drying of stores and storing various stores simply at the optimum temperature. SOLUTION: The refrigerator is equipped with a vegetable chamber 12 wherein vessels 54a-54d holding the stores are disposed, a cooler 21 producing cold air for cooling the vegetable chamber 12, a cold air passage 59 through which the cold air flows and which is disposed at the back of the vegetable chamber 12 with a back plate 61 of the vegetable chamber 12 interlaid, discharge ports 12a-12d discharging the cold air through the back plate 61, a cover 65 covering the front of the discharge ports and opening downward, and a return port 19a leading the cold air in the vegetable chamber 12 to the cooler 21. The cold air discharged from the discharge ports 12a-12d is made to flow immediately between the holding vessels 54a-54d and the back plate 61 and led to the return port 19a, and thereby each of the holding vessels 54a-54d is put at a different temperature from the others.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly to a refrigerator having a storage container in a storage chamber.

[0002]

2. Description of the Related Art A conventional refrigerator is disclosed, for example, in Japanese Patent No. 269.
As disclosed in Japanese Patent No. 8567, a refrigerator compartment, a vegetable compartment, and a freezer compartment are arranged in this order from the upper part of the refrigerator body. The front of the refrigerating compartment can be opened and closed by a pivoting open / close door, and the vegetable compartment and the freezing compartment can be pulled out together with the storage container by a sliding open / close door.

A cooler for generating cold air is arranged behind the freezer compartment. The cool air generated by the cooler is delivered to the freezing room or the refrigerating room via the distribution chamber. In the freezer compartment, since the stored material is stored frozen, the temperature of the cold air is, for example, -20
Hold at ℃. Since the refrigerating room stores refrigerated items,
It is kept at, for example, 3 ° C. by repeatedly sending and stopping cold air.

The temperature of the cold air rises slightly due to heat exchange with the stored items in the refrigerating compartment, and then the cold air flows into the vegetable compartment. The storage container in the vegetable compartment is provided with a lid, and the cold air flowing from the refrigeration compartment to the front of the vegetable compartment passes through the upper surface of the lid and flows down along the back surface of the storage container to return to the cooler. The stored food in the vegetable compartment is indirectly cooled by the cold heat transmitted through the storage container. As a result, it is possible to prevent the vegetables and the like from drying and to maintain the freshness without directly contacting the stored products with cold cold air.

[0005]

In recent years, stored items stored in refrigerators have been diversified and, for example, not only fruits and vegetables, root vegetables and grains but also cosmetics and medicines have been preserved. Fruits and vegetables can usually retain their freshness for a long period of time if stored at a temperature of 3 ° C to 5 ° C. On the other hand, the temperature suitable for storing chemicals is said to be about 10 ° C.

Therefore, according to the above-mentioned conventional refrigerator,
Even if chemicals are stored in the vegetable compartment, which is kept at the highest temperature in the refrigerator, the temperature is low and the storage condition is not optimal. It is possible to divide the vegetable compartment or the like into a plurality of compartments by a partition wall and maintain different temperatures in each compartment, but there is a problem that the volumetric efficiency of the refrigerator is reduced due to the volume of the partition wall.

[0007] Vertical vegetables such as leeks, burdock root, chive, and celery are stored in a vegetable compartment by laying them down. For this reason, there is also a problem that deterioration of freshness is promoted because it is stored in a direction different from the growth environment.

An object of the present invention is to provide a refrigerator capable of preventing various stored items from drying and easily storing various stored items at an optimum temperature. Another object of the present invention is to provide a refrigerator that can prevent the freshness of vertically long vegetables from being reduced.

[0009]

In order to achieve the above-mentioned object, the present invention provides a first container provided with a storage container for storing stored items.
A storage chamber, a cooler for generating cool air for cooling the first storage chamber, a cool air passage through which the cool air flows and which is arranged behind the first storage chamber through a back wall of the first storage chamber, A discharge port for discharging the cool air from the back wall and a return port for guiding the cool air in the first storage chamber to the cooler are provided, and the cool air discharged from the discharge port is immediately between the storage container and the back wall. And is led to the return port.

According to this structure, the cool air generated by the cooler flows into the cool air passage and is discharged from the discharge port into the first storage chamber. Immediately after being discharged from the discharge port, the cool air flows down between the storage container and the back wall. Then, returning from the return port to the cooler, the cool air circulates to cool the first storage chamber. Thereby, the inflow of cold air into the storage container is suppressed without providing a lid or the like, and the stored air is indirectly cooled by the cool air that is transmitted through the storage container by the cool air in the first storage chamber.

The present invention is also characterized in that, in the refrigerator having the above structure, a cover is provided which covers the front of the discharge port and opens downward. With this configuration, the cool air discharged from the discharge port is guided by the cover and travels downward, so that the cool air can be easily distributed between the storage container and the back wall of the first storage chamber.

The present invention is also characterized in that, in the refrigerator having the above-mentioned structure, a plurality of the storage containers are provided, and the temperatures of the storage containers arranged in parallel in the vertical direction are set to different temperatures. With this configuration, it is possible to store the stored items at different temperatures without providing a partition wall.

According to the present invention, in the refrigerator having the above structure, the first storage chamber is a vegetable chamber maintained at an indoor temperature suitable for vegetables, and the first storage chamber and the second storage chamber having different indoor temperatures are separated from each other by a partition wall. It is characterized in that it is provided on the side of the first storage chamber via. According to this structure, the vegetable compartments having a predetermined volume are vertically arranged, and it is possible to easily maintain the plurality of storage containers arranged in parallel vertically at different temperatures.

Further, the present invention is characterized in that, in the refrigerator having the above-mentioned structure, a storage portion for standing and storing a stored product is provided on a rear surface of an opening / closing door for rotating and opening a front surface of the first storage chamber. According to this configuration, the vertically long vegetables such as leeks and burdock are stored in the vertically long vegetable compartment by the storage unit.

According to the present invention, in the refrigerator having the above-mentioned structure, the second storage chamber comprises a freezing chamber for freezing and storing stored items, and a heater wire for preventing dew condensation by the freezing chamber is built in the isolation wall, It is characterized in that the heater wires have different densities in the vertical direction. With this configuration, dew formation due to the cold heat released from the freezer compartment to the first storage compartment through the isolation wall is prevented by energizing the heater wire. This time,
Since the heater wires have different densities in the upper portion and the lower portion of the first storage chamber, for example, the temperature is kept low in the lower portion of the first storage chamber and high in the upper portion.

The present invention is also characterized in that the refrigerator having the above-mentioned structure is provided with a temperature detecting means for detecting the temperature in the first storage chamber and controlling the energization of the heater wire.

The present invention is also characterized in that, in the refrigerator having the above structure, the cool air flowing into the cool air passage is guided to the side away from the isolation wall. According to this configuration,
The cool air generated by the cooler flows into the cool air passage behind the first storage chamber in a direction away from the isolation wall. Therefore, cold air having a low temperature is discharged to the side away from the freezer compartment, and cold heat is released to the side close to the freezer compartment through the isolation wall. As a result, the temperature in the first storage chamber is kept uniform in the left-right direction.

Further, the present invention is characterized in that, in the refrigerator having the above-mentioned structure, a plurality of the discharge ports having different opening areas are arranged side by side in the vertical direction. According to this configuration, for example, by reducing the opening area of the discharge port arranged above and increasing the opening area of the discharge port arranged below, the first storage chamber can be easily brought to different temperatures in the vertical direction. Maintained.

The present invention is also characterized in that, in the refrigerator having the above structure, the heat insulating layer integrated with the back wall has different thicknesses in the vertical direction. According to this configuration, for example, the heat insulating layer arranged above is thickened and the heat insulating layer arranged below is thinned. As a result, the cold heat discharged from the cold air passage is different between the upper and lower portions, so that the first storage chamber is easily maintained at a different temperature in the vertical direction.

The present invention is also characterized in that, in the refrigerator having the above structure, the temperature inside the storage container arranged below is lower than the temperature inside the storage container arranged above.

Further, the present invention provides a refrigerator having the above-mentioned structure, in which a low temperature storage chamber having a room temperature lower than that of the first storage chamber is provided.
It is characterized by being placed above the storage room. According to this structure, the upper part of the first storage chamber is cooled by the cold heat released from the low temperature storage chamber whose room temperature is lower than that of the first storage chamber. To keep the temperature of the upper part of the first storage room high,
Even if the cool air is not discharged to the upper portion, it is possible to maintain the predetermined temperature by cooling with the cold heat.

According to the present invention, in the refrigerator having the above-mentioned structure, the back wall first receives cold heat from cold air in the cold air passage.
It is characterized by having a cooling plate that discharges into the storage chamber. According to this structure, the cooling heat can be easily released by the cooling plate due to the cold air passing through the cold air passage, and the cooling efficiency can be improved.

Further, according to the present invention, a vegetable compartment maintained at an indoor temperature suitable for vegetables, an opening / closing door for opening and closing a front surface of the vegetable compartment by rotating, and a backside of the opening / closing door and a storage stand. It is characterized by having a storage part for storing as. With this configuration, the storage unit stores the vertically elongated vegetables such as leeks and burdock in the vegetable chamber in a posture in which the vegetables are naturally grown.

Further, the present invention is characterized in that, in the refrigerator having the above-mentioned structure, the storage section has a support section for supporting the stored article from the rear and for moving the storage section up and down.
With this configuration, it is possible to easily support the stored items having different lengths and store them.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a refrigerator according to an embodiment. In the refrigerator 1, an inner box 2b is arranged inside an outer box 2a that covers the outer surface, and a gap between the outer box 2a and the inner box 2b is filled with a heat insulating material 2c such as urethane foam. The outer box 2a is composed of a cabinet portion 2d in which a side surface portion and an upper surface portion are integrated, and a back plate 2e on the rear side (see FIG. 2).

Inside the refrigerator 1, a refrigerating compartment 11 is arranged at the top. A vegetable compartment 12 and a freezer compartment 13 are provided in a lower part separated from the refrigerating compartment 11 by a partition wall 16 made of a heat insulating material.
Are arranged side by side. Vegetable room 12 and freezer room 1
3 is separated by a partition wall 19 made of a heat insulating material. The freezer compartment 13 is further divided into an upper part and a lower part by a partition frame 18 made of a heat insulating material.

A heater wire (not shown) is built in the partition wall 19. Further, a temperature sensor (not shown) for detecting the room temperature is provided in the vegetable room 12. Since cold heat is released from the freezing compartment 13 to the vegetable compartment 12 adjacent to the freezing compartment 13, the inside of the vegetable compartment 12 is exposed when the temperature inside the vegetable compartment 12 is locally lowered. Therefore, when the temperature sensor detects that the surrounding temperature of the partition wall 19 where the temperature tends to be the lowest becomes a predetermined temperature, the heater wire is energized to prevent the dew condensation in the vegetable compartment 12.

At the lower part of the refrigerating compartment 11, there is provided an ice greenhouse 14 which is an isolation compartment partitioned by a partition plate 46. The ice greenhouse 14 is provided on the right side in the refrigerating compartment 11 and is arranged directly above the freezing compartment 13. An ice making section 67 for making ice is provided in the upper portion of the freezer compartment 13. A tank 63 for storing water to be supplied to the ice making unit 67 is detachably arranged beside the ice greenhouse 14. Behind the tank 63 is the tank 63
A pump (not shown) for supplying the water therein to the ice making unit 67 is installed.

FIG. 2 shows a top sectional view of the refrigerator 1. The front surface of the refrigerating chamber 11 can be opened and closed by double-sided heat insulating doors 3 and 4 which rotate by gripping the handles 3a and 4a. Packings 3b and 4b are provided on the end surfaces of the heat insulating doors 3 and 4, so that the refrigerating chamber 11 can be sealed by closing the gap.

FIG. 3 shows a right side sectional view of the refrigerator 1. A plurality of storage shelves 4 on which stored items are stored in the refrigerator compartment 1.
5 are provided. Insulation door 3 has a plurality of door pockets 44
Is provided. A similar door pocket 44 is also provided in the heat insulating door 4 (see FIG. 4).

The upper part of the freezer compartment 13 can be opened and closed by a slide type heat insulating door 5. A grip portion (not shown) provided on the upper end of the heat insulating door 5 can be gripped so that the storage container 55 integrated with the heat insulating door 5 can be pulled out. The lower part of the freezer compartment 13 can be opened and closed at the front by a rotary heat insulating door 6. The handle portion (not shown) provided at the upper end of the heat insulating door 6 is gripped to open the heat insulating door 6, and the storage containers 56a, 56
b and 56c can be pulled out.

The storage containers 55, 56a, 56b, 56c have different depths, and by accommodating them according to the size of the stored items, stacking of the stored items can be avoided. As a result, a large stored item can be stored, and it is not necessary to take out the stacked lower stored item, and good usability can be obtained.

Behind the freezer compartment 13 is a back plate 2
The compressor 20 is disposed via a heat insulating wall 20a that is integrated with e. The compressor 20 is connected to a cooler 21 arranged in a cold air passage 23 to form a refrigeration cycle.

When the circuit diagram of the refrigeration cycle is shown in FIG. 5, a condenser 71 is connected to one end of the compressor 20, and a cooler 21 is connected to the other end. The condenser 71 and the cooler 21 are connected via a capillary tube 72.

When the compressor 20 is driven, the refrigerant flows in the direction of arrow A1. The compressed refrigerant releases heat in the condenser 71 to be condensed. The condensed and liquefied refrigerant is decompressed by the capillary tube 72, then takes heat in the cooler 21 when vaporized, and returns to the compressor 20. As a result, the cooler 21 cools the air and the blower 22 sends the cool air. Reference numeral 73 denotes a condenser blower that cools the condenser 71.

In FIG. 3, a glass tube type defrost heater 62 is provided below the cooler 21 as defrosting means for defrosting. A drain receiving member 64 that receives defrost water is provided below the defrost heater 62. An evaporation tray (not shown) is arranged below the drain receiving member 64, and drain water is guided to the evaporation tray by a drain hose (not shown) connected to the outflow hole 64a of the drain receiving member 64. .

The cooler 21 is arranged in a cold air passage 23 provided in the rear of the freezer compartment 13. The cold air passage 23 has a back surface formed by the inner box 2b and a front surface formed by an EVA cover 33 made of a resin molded product. Ever cover 3
3 is provided with a space 33e through which cold air passes. The front surface side of the space 33e is covered with a back plate 33a forming the back surface of the freezer compartment 13. Cooler 21 in the cold air passage 23
A blower 22 is arranged above. The cold air passage 23 communicates with the freezer compartment 13 through the discharge ports 13a to 13d and the return port 33b provided on the back plate 33a.

The space 33e between the evaporation cover 33 and the back plate 33a has a protruding wall 3 protruding from the evaporation cover 33.
It is separated by 3d. Thereby, the discharge ports 13a to 13a
The 3d side and the return port 33b side are separated, and the cool air in the freezing compartment 13 returns to the cold air passage 23 through the opening 33c communicating with the return port 33b. Also, the partition wall 19
Through holes 19a are provided in (see FIG. 1), and as described later, the cold air circulating in the vegetable compartment 12 returns to the cold air passage 23 through the through holes 19a.

A blower chamber 24 communicating with the cool air passage 23 is provided above the partition wall 16. The blower chamber 24 has a communication opening with the damper 25 opened and closed by a damper 25, and a blower 26 is provided in the blower chamber 24. A cool air passage 29 is provided above the blower chamber 24 so as to communicate therewith. When the damper 25 is opened and the blower 26 is driven, the cool air flows through the cool air passage 29, and the cool air is sent to the refrigerating compartment 11 and the vegetable compartment 12.

The back surface of the cool air passage 29 is formed by the inner box 2b, and the front surface is formed by the cooling plate 42. The cooling plate 42 is formed by processing a metal plate of aluminum, stainless steel, or the like into a metal plate, and a heat insulating material 42b is attached to the back surface side. As shown in FIGS. 1 and 2, the cold air passage 29 has an ascending passage 29a arranged at the center and a descending passage 29b arranged at both sides. A plurality of discharge ports 42a are provided in the peripheral portion of the descending passage 29b so that cool air is discharged into the refrigerating chamber 11.

Further, cold heat generated by the cool air passing through the cool air passage 29 is released into the refrigerating compartment 11 through the cooling plate 42, so that the refrigerating compartment 11 is uniformly cooled. Cooling plate 42 and heat insulating material 42b
It is also possible to partially adjust the release of cold heat to the refrigerating compartment 11 by providing a gap between the gap and a small amount of cold air, adjusting the thickness of the heat insulating material 42b, or the like.

A ceiling cold air passage 57, which communicates with the cold air passage 29 through a communication port 29c, is provided in the ceiling portion of the refrigerating compartment 11. The ceiling cold air passage 57 is formed by the upper plate 43 made of a resin molded product and the inner box 2b. Top plate 43
Is provided with a discharge port 43a, and the heat insulating material 43b is provided on the upper surface side.
(See FIG. 3) is attached. An illumination lamp (not shown) covered with a transparent illumination cover 52 is provided at the center of the ceiling of the refrigerating compartment 11 to illuminate the interior of the refrigerating compartment 11.

Further, branch passages 60 and 68, which branch from the cold air passage 29 and are connected to the ice greenhouse 14 and the vegetable compartment 12, are formed. The branch passage 60 discharges cool air from the discharge port 60a to the ice greenhouse 14. The cool air passing through the branch passage 68 merges with the cool air circulating in the refrigerating compartment 11 and is delivered to the cool air passage 59 (see FIG. 4) behind the vegetable compartment 12.

In the lower part of the refrigerating compartment 11, there is provided a communication passage 49 which communicates with a cold air passage 59 described later through the opening 49a. When the left side cross section of the refrigerator 1 is shown in FIG. 4, the communication passage 49 is formed by attaching a cover 50 made of a resin molded product to the inner box 2b. The cold air that has circulated in the refrigerating chamber 11 passes through the communication passage 49, and the through hole 16 a provided in the partition wall 16
Is sent to the cold air passage 59 via.

The front of the vegetable compartment 12 can be opened and closed by a rotary heat insulating door 7. The holding portion (not shown) provided at the upper end of the heat insulating door 7 is gripped to open the heat insulating door 7 and the storage containers 54a, 54b, 54c, 54d can be drawn out. The storage containers 54a, 54b, 54c, and 54d have different depths, and by accommodating them according to the size of the stored items, stacking of the stored items can be avoided.

As a result, large vegetables such as watermelons and heavy vegetables can be easily stored in the lower portion, and it is possible to obtain good usability because it is not necessary to take out the stacked lower stored items. In addition, it is possible to prevent damage to vegetables and the like due to stacking.

Furthermore, since the vegetable compartment 12 is vertically long, vertically long vegetables (for example, long onions,
A storage part 58 for storing burdock, chive, celery, etc. in an upright position is provided. By the storage part 58, vertically long vegetables can be stored in a posture in which they grow naturally. Also, as will be described later, because cold air does not flow to the front side,
Cold air does not come into direct contact with vegetables.

Therefore, the vertically long vegetables can be stored in a fresh state for a long period of time. The storage portion 58 is provided with a support portion 58a that moves up and down to support the back side of the stored items. As a result, it is possible to support the optimum positions of stored items having different lengths and prevent the stored items from falling over.

Behind the vegetable compartment 12, a cold air passage 59 partitioned by a back plate 61 is provided. Back plate 61
Is provided with a plurality of ejection openings 12a, 12b, 12c, 12d arranged vertically. As shown in FIG. 1, the opening area of the ejection port 12d is larger than the opening area of the ejection ports 12a to 12c.

Further, the discharge ports 12a, 12b, 12c, 1
A cover 65 that closes the front and opens downward is provided on each 2d. The cover 65 is formed by integrally processing the back plate 61. In the cold air passage 59,
A guide plate 66 is provided for guiding the cool air that has flowed into the cool air passage 59 via the communication passage 49 and the branch passage 68 to the side away from the freezer compartment 13.

In the refrigerator 1 having the above structure, the compressor 20
Is driven by the cooler 21 to cool the blower 2
2 is driven, the air in the freezer compartment 13 returns to the return port 33b.
Is sucked into the cool air passage 23 through the opening 33c. The air is cooled by exchanging heat with the cooler 21, and the discharge port 13
It is discharged from the a, 13b, 13c and 13d into the freezer compartment 13. Thereby, the inside of the freezer compartment 13 is cooled to, for example, -20 ° C.

When the damper 25 is opened and the blower 26 is driven, a part of the cool air in the cool air passage 23 is sent to the cool air passage 29 and the ceiling cool air passage 57. Then, the discharge port 42a,
Cold air is discharged into the refrigerating chamber 11 from 43a. Further, since the cooling plate 42 is made of metal, a part of the cold heat of the cold air flowing through the cold air passage 29 is released as cold heat into the refrigerating chamber 11 via the cooling plate 42.

Therefore, the inside of the refrigerating chamber 11 is efficiently and uniformly cooled to, for example, 3 ° C. by the cold heat discharged from the cooling plate 42 and the cool air discharged from the discharge ports 42a and 43a.
The cooling plate 42 may be made of a material having high thermal conductivity, and a ceramic material, a resin material impregnated with a metal filler, or the like may be used.

Further, a part of the low temperature cold air having passed through the cold air passage 23 is immediately discharged through the branch passage 60 to the ice greenhouse 14 through the discharge port 60a. Thereby, the temperature in the ice greenhouse 14 can be maintained at, for example, -1 ° C.

The cold air discharged into the refrigerating compartment 11 is placed on the mounting shelf 45.
Together with the cold air in the ice greenhouse 14 through the communication passage 49 into the cold air passage 59 behind the vegetable compartment 12. In addition, a part of the low temperature cold air passing through the cold air passage 23 immediately flows into the cold air passage 59 through the branch passage 68 and joins with the cold air passing through the refrigerating chamber 11. The combined cold air is discharged from the outlet 12a.
It is discharged into the vegetable compartment 12 from 12d.

The cold air discharged from the discharge ports 42a and 43a into the refrigerating compartment 11 is deprived of cold heat by food or the like before flowing into the vegetable compartment 12. As a result, the temperature of the cold air that circulates in the refrigerating chamber 11 rises, and the heated cold air is heated in the vegetable chamber 12
Flow into. At this time, the low temperature cold air passing through the branch passage 68 joins with the cold air passing through the refrigerating chamber 11. Therefore, vegetable room 1
The flow rate of the branch passage 68 is set so that the temperature inside 2 is maintained at a predetermined temperature (for example, 5 ° C to 10 ° C).

A back plate 61 arranged in front of the cool air passage 59
May be formed by a cooling plate similar to the cooling plate 42 provided in the cold air passage 29. In this way, cold heat is released from the back plate 61, and the cooling efficiency can be improved. Further, by providing the heat insulating material, it is possible to prevent damage to the vegetables and the like in the vegetable compartment 12 due to supercooling.

In the cool air passage 59, the cool air is guided by the guide plate 66 to the side away from the partition wall 19. For this reason,
A large amount of cold air having a low temperature is discharged to the side away from the freezing compartment 13, and cold heat is released to the side near the freezing compartment 13 via the partition wall 19. As a result, the temperature inside the vegetable compartment 12 is kept uniform in the left-right direction.

As shown in FIG. 4, the discharge ports 12a-12d.
The cool air discharged from the inside is restricted by the cover 65 in the traveling direction downward. Therefore, the storage container 54a is immediately discharged.
It flows down between 54d and the back plate 61. This allows
The stored items in the storage containers 54a to 54d are stored in the storage containers 54a to 54d without direct entry of cold air into the storage containers 54a to 54d.
Indirectly cooled via ~ 54d. Therefore, unlike the conventional example, it is not necessary to provide a lid or the like on the storage containers 54a to 54d, and the number of parts can be reduced and the volumetric efficiency can be improved.

Immediately after the cool air is discharged, the storage container 54
a-54d for flowing down between the back plate 61 and the vegetable compartment 1
Cooling of the upper part of 2 is suppressed. Also, the discharge ports 12a to 1
Since the opening area of the discharge port 12d is larger than the opening area of 2c, the amount of cool air discharged below the vegetable compartment 12 increases. Further, the low temperature cold air descends due to its own weight.

Therefore, a temperature difference is easily formed between the upper part and the lower part of the vegetable compartment 12, and each of the storage containers 54a to 54d.
The stores can be stored at different temperatures within. For example, the temperature in the upper storage container 54a can be maintained at about 10 ° C to store chemicals and cosmetics, and the temperature in the storage container 54d can be maintained at about 5 ° C to store fruits and vegetables. At this time, since the partition wall is not provided between the storage containers 54a to 54d, it is possible to prevent the volumetric efficiency from lowering.

The cool air flowing down along the back plate 61 is passed through the through hole 19 provided at the lower rear portion of the partition wall 19 (see FIG. 1).
Returning from a to the cool air passage 23 (see FIG. 3). This allows
The cool air generated by the cooler 21 circulates to cool the freezer compartment 13, the refrigerator compartment 11, and the vegetable compartment 12.

According to this embodiment, since the freezer compartment 13 is arranged on the side of the vegetable compartment 12, the vegetable compartment 12 is formed vertically without making the volume larger than necessary. Therefore, the plurality of storage containers 54a to 54d can be arranged vertically. In addition, the cool air discharged from the discharge ports 12a to 12d is immediately flowed down, the discharge ports 12a to 12d are made to have different opening areas, and the cool air is lowered by its own weight, thereby providing a temperature difference in the vertical direction of the vegetable compartment 12. You can Therefore, it is possible to easily maintain different temperatures inside the storage containers 54a to 54d.

Further, the density of the heater wires built in the partition wall 19 (see FIG. 1) may be decreased downward. Even in this case, the lower side of the vegetable compartment 12 is further cooled, and the temperature difference can be easily provided in the vegetable compartment 12. Further, when the back plate 61 is formed of a cooling plate made of metal,
The thickness of the heat insulating material provided on the back surface of the cooling plate may be made thinner toward the lower side. Even in this case, the lower portion of the vegetable compartment 12 is further cooled by releasing the cold heat, and the temperature difference can be easily provided in the vegetable compartment 12.

A refrigerating room (low temperature storage room) 11 having a room temperature lower than that of the vegetable room is arranged above the vegetable room 12. Therefore, cold heat is released from the refrigerator compartment 11 to the vegetable compartment 12 through the isolation wall 16. If the temperature inside the storage container 54a above the vegetable compartment 12 is maintained at about 10 ° C,
Even if the cool air is not discharged from the discharge port 12a, it can be maintained by the cold heat released from the refrigerating chamber 11. Therefore, it is possible to reduce the amount of cold air flowing through the cold air passage 59 and improve the cooling efficiency.

[0066]

According to the present invention, the cold air discharged from the discharge port immediately flows between the storage container and the back wall of the first storage chamber, so that the cold air is suppressed from entering the storage container and stored. The item is indirectly cooled via the storage container. Therefore, unlike the conventional example, it is not necessary to provide a lid or the like on the storage container, and the number of parts can be reduced and the volumetric efficiency can be improved.

Further, according to the present invention, since the cover that covers the front of the discharge port and opens downward is provided, the cool air discharged from the discharge port is guided by the cover and travels downward.
It is possible to easily circulate between the storage container and the back wall of the first storage chamber.

Further, according to the present invention, since the cool air discharged from the discharge port immediately flows down, it is possible to easily bring different temperatures in the plurality of storage containers arranged in the vertical direction, and to provide various temperatures without providing a partition wall. Can be stored at different temperatures.

Also according to the present invention, the first of the vegetable compartments
Since the second storage chamber is provided on the side of the storage chamber, the vegetable compartment having a predetermined volume is vertically arranged. Therefore, it is possible to easily maintain the plurality of storage containers arranged side by side at different temperatures.

Further, according to the present invention, since the storage portion for standing and storing the stored goods is provided on the back surface of the opening / closing door of the first storage chamber, the vertically long vegetables can be stored in a posture in which they are naturally grown. . Moreover, since the cold air does not flow to the front side, the cold air does not directly contact the vegetables. Therefore, the vertically long vegetables can be stored in a fresh state for a long period of time.

Also according to the present invention, a first room consisting of a vegetable room
Since the heater wires for preventing dew condensation built in the partition wall between the storage room and the second storage room consisting of the freezing room have different densities in the vertical direction, the first storage room can be easily moved up and down by energizing the heater wires. Different temperatures can be maintained in different directions.

Further, according to the present invention, since the cool air flowing into the cool air passage is guided to the side away from the isolation wall, the cool air having a low temperature is discharged to the side away from the freezing chamber and the isolation wall is provided to the side close to the freezing chamber. Cold heat is released through. As a result, the temperature in the vegetable compartment can be kept uniform in the left-right direction.

Further, according to the present invention, since the opening areas of the upper and lower discharge ports are different, it is possible to easily maintain the different temperatures in the first storage chamber in the vertical direction.

Further, according to the present invention, since the heat insulating layer integrated with the back wall of the vegetable compartment has different thicknesses in the vertical direction,
It is possible to easily maintain different temperatures in the first storage chamber in the vertical direction.

Further, according to the present invention, the temperature inside the storage container arranged below is set to be lower than the temperature inside the storage container arranged above, so that the low-temperature cold air descends due to its own weight, so that a predetermined temperature is reached. Can be easily maintained.

Further, according to the present invention, since the low temperature storage chamber having a temperature lower than that of the first storage chamber is arranged above the first storage chamber,
The upper part of the first storage compartment is cooled by the cold heat released from the low temperature storage compartment. Accordingly, when the temperature of the upper portion of the first storage chamber is maintained higher than that of the lower portion, it is possible to maintain the predetermined temperature by cooling with the cold heat without discharging the cool air to the upper portion. Therefore, it is possible to reduce the amount of cold air flowing through the cold air passage and improve the cooling efficiency.

Further, according to the present invention, the cooling heat provided in the cold air passage is released into the first storage chamber by the cooling plate provided on the back wall, so that the cooling efficiency can be improved.

Further, according to the present invention, since the storage portion for standing and storing the stored goods is provided on the back surface of the opening / closing door of the vegetable compartment, it is possible to store the vertically long vegetables in a posture in which they grow naturally. Therefore, the vertically long vegetables can be stored in a fresh state for a long period of time.

Further, according to the present invention, since the storage section is provided with the support section which is movable up and down to support the back side of the stored article, the optimal position of the stored article having a different length is supported to prevent the stored article from falling. Can be prevented.

[Brief description of drawings]

FIG. 1 is a front view showing a refrigerator according to an embodiment of the present invention.

FIG. 2 is a top sectional view showing the refrigerator according to the embodiment of the present invention.

FIG. 3 is a right side sectional view showing the refrigerator according to the embodiment of the present invention.

FIG. 4 is a left side sectional view showing the refrigerator according to the embodiment of the present invention.

FIG. 5 is a circuit diagram showing a refrigeration cycle of the refrigerator according to the embodiment of the present invention.

[Explanation of symbols]

1 refrigerator 2a outer box 2b inner box 2c insulation 2d cabinet part 2e Back plate 3, 4, 5, 6, 7 Insulation door 11 Refrigerator 12 vegetable room 12a to 12d discharge port 13 Freezer 14 Ice greenhouse 16 and 19 partition walls 19a Return port 20 compressor 20a insulation wall 21 Cooler 22,26 blower 23, 29, 59 Cold air passage 25 damper 33 Evercover 42 Cooling plate 49 communication passage 54a to 54d, 55, 56a to 56c storage container 57 Ceiling cold air passage 58 Storage 61 back plate 62 Defrost heater 63 tanks 64 Drain receiving member 65 cover 66 Information board 67 Ice Making Department

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kaoru Terada             22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka             Inside the company F term (reference) 3L045 AA01 BA01 CA02 DA02 EA01                       HA01 MA02 NA21 PA04 PA05                 3L046 AA01 BA09 KA02 LA33 MA04                       MA05

Claims (15)

[Claims] 1. A first storage chamber in which a storage container for storing stored items is arranged, a cooler for generating cold air for cooling the first storage chamber, and a back wall of the first storage chamber through which the cool air flows. A cool air passage disposed behind the first storage chamber via a discharge port for discharging the cool air from the back wall, and a return port for guiding the cool air in the first storage chamber to the cooler. Refrigerator characterized in that cold air discharged from an outlet immediately flows between the storage container and the back wall and is guided to the return port. 2. The refrigerator according to claim 1, further comprising a cover that covers the front of the discharge port and opens downward. 3. The refrigerator according to claim 1, wherein a plurality of the storage containers are provided, and the temperatures of the storage containers arranged in parallel in the vertical direction are set to different temperatures. 4. The first storage compartment comprises a vegetable compartment maintained at an indoor temperature suitable for vegetables, and a second storage compartment having a different room temperature from the first storage compartment is separated from the first storage compartment by an isolation wall. The refrigerator according to claim 3, wherein the refrigerator is provided on one side. 5. The refrigerator according to claim 4, further comprising: a storage unit for standing and storing a storage item provided on a rear surface of an opening / closing door that opens and closes a front surface of the first storage chamber by rotating. 6. The second storage chamber comprises a freezing chamber for freezing and storing stored items, and a heater wire for preventing dew condensation by the freezing chamber is built in the partition wall so that the heater wires have different densities in the vertical direction. The refrigerator according to claim 4 or 5, wherein the refrigerator is used. 7. The refrigerator according to claim 6, further comprising temperature detecting means for detecting a temperature in the first storage chamber and controlling energization of the heater wire. 8. The refrigerator according to claim 6, wherein the cool air flowing into the cool air passage is guided to a side away from the isolation wall. 9. The refrigerator according to claim 3, wherein a plurality of the discharge ports having different opening areas are arranged in parallel in the vertical direction. 10. The heat insulating layer integrated with the back wall has different thicknesses in the vertical direction.
The refrigerator according to claim 5. 11. The temperature inside the storage container arranged below is set to be lower than the temperature inside the storage container arranged above. Refrigerator. 12. The refrigerator according to claim 11, wherein a low temperature storage room having a room temperature lower than that of the first storage room is arranged above the first storage room. 13. The refrigerator according to claim 1, wherein the back wall has a cooling plate for releasing cold heat due to cold air in the cold air passage into the first storage chamber. 14. A vegetable compartment maintained at an indoor temperature suitable for vegetables, an opening / closing door that opens and closes by rotating the front surface of the vegetable compartment, and a backside of the opening / closing door and a storage for standing upright. A refrigerator provided with a storage part. 15. The refrigerator according to claim 14, wherein the storage portion has a support portion that supports a stored item from the rear and is vertically movable.