JPH09113089A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the respective cooling performances of a freezing chamber, a refrigerating chamber, a vegetable chamber, etc., and thereby to improve a storage efficiency of a refrigerator. SOLUTION: The central part inside a heat insulating box body 3 is made a freezing chamber 8, the upper part a refrigerating chamber 6 and the lower part a vegetable chamber 9. A cooling chamber 22 is formed by division in a deep part inside the freezing chamber 8 in the central part. A cooler 15 for the freezing chamber is installed inside the cooling chamber 22. A blower 16 for cooling the inside of the freezing chamber 8 is provided above the cooler 15 for the freezing chamber. A cooling pipe 18 for the refrigerating chamber is provided on the heat insulating material 2 side of the inner wall of the refrigerating chamber 6. A cooling pipe 19 for the vegetable chamber is provided on the heat insulating material 2 side of the inner wall of the vegetable chamber 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator comprising a heat-insulating box which is divided into a central freezing room, and a refrigerating room and vegetable rooms above and below the freezing room.

[0002]

2. Description of the Related Art A conventional refrigerator 101 will be described with reference to FIG. This kind of refrigerator 101 has an outer box 103A made of steel plate.
And resin inner box 103B and both inner and outer boxes 103B and 103A
A heat insulating material 102, such as foamed polyurethane, filled in between, and a heat insulating box 103 having a front opening is divided by an upper partition wall 104 and a lower partition wall 105 in which molded heat insulating materials 114, 114 are housed. By doing so, the upper partition wall 104 is defined as a refrigerating chamber 106, the lower partition wall 105 is defined as a vegetable chamber 109, and a space between them is defined as a central freezing chamber 108.

A front opening of the refrigerating compartment 106 is openably and closably closed by a rotary heat insulating door 110, and the freezing compartment 1
08 and the front opening of the vegetable compartment 109 is a container 1 with an upper opening.
Draw-out type heat-insulating doors 111 and 112 provided with 11A, 112A, and 113A (the freezer compartment 108 has two upper and lower stages),
Each of them is closed by 113 so that it can be opened and closed.

A fixed rail 140 (not shown on the rear side) is attached from both sides of the front opening in the freezer compartment 108 to the inner side, and the container 11 held by the heat insulating door 111.
Door side rails (not shown) are attached to both side surfaces of 1A, whereby the container 111A can be freely taken in and out of the freezer compartment 108. Further, the fixed rails 144, 146 below the fixed rails 140 mounted in the freezer compartment 108 and also in the vegetable compartment 109 from the both sides of the front opening to the inner part.
(Rear side not shown) is attached, by which the container 1
12A and 113A are freely installed in and out of the freezer compartment 108 and the vegetable compartment 109.

On the other hand, a partition plate 12 is provided in the deep part of the freezer compartment 108.
1, a cooling chamber 122 is partitioned and formed, and a cooling device 115 is installed in the cooling chamber 122. Cooler 1
A blower 116 is provided above the fifteen, and the freezing chamber discharge port 108A is provided at the upper and central portions of the partition plate 121.
108A, and a freezer inlet 108B is formed in the lower part.

A refrigerating compartment rear duct 120 extending in the vertical direction is formed in the deep part of the refrigerating compartment 106, and a refrigerating compartment outlet 120A is formed on the upper front surface of the duct 120.
And a plurality of shelves 114 on which foods are placed are provided in the refrigerator compartment 106. Further, the lower end of the refrigerating compartment rear duct 120 communicates with the cooling compartment 122, and a damper thermostat 123 positioned on the inner part of the upper partition wall 104 is provided in the middle thereof. Further, a machine room 135 is formed in the lower rear part of the heat insulating box 103, and in the machine room 135, a compressor 136 that constitutes a well-known refrigeration cycle is installed together with the cooler 115.

The compressor 136 and the blower 116 are operated and controlled by a controller (not shown) based on the temperature of the freezer compartment 108, and the cool air cooled by the cooler 115 is discharged by the blower 116 from the freezer compartment outlets 108A, 108A. It is blown into the freezer compartment 108. And the freezer compartment 108
After being circulated inside and cooled, the cool air returns from the lower freezer inlet 108B to the lower portion of the cooler 115 in the cooling chamber 122. Thereby, the freezer compartment 108 is maintained at a predetermined freezing temperature (about -20 ° C).

Further, a part of the cool air blown out from the blower 116 passes through the damper thermostat 123 to rise in the rear duct 120 of the refrigerating compartment, and the refrigerating compartment discharge port 120.
It is blown out from A into the refrigerator compartment 106. Then, the damper thermostat 123 controls the opening and closing of the cold air supply to the duct 120 based on the temperature in the refrigerating compartment 106, and the refrigerating compartment 1
The temperature in 06 is maintained at a predetermined refrigerating temperature (for example, about + 3 ° C.).

An ice temperature corner 107 partitioned from another space is defined in the lower part of the refrigerator compartment 106.
Damper thermostat 1 also on this ice corner 107
The cold air that has passed through 23 is discharged from an ice temperature corner discharge port (not shown). As a result, the inside of the ice temperature corner 107 is cooled to a low temperature of, for example, about -1 ° C.

A refrigerating compartment suction port (not shown) is formed in the lower part of the ice temperature corner 107, and a refrigerating compartment back duct (not shown) provided on the rear surface of the refrigerating compartment 108 from the refrigerating compartment suction port provides a refrigerating compartment 106. Inside (ice temperature corner 107
The inside of the vegetable compartment 109 is in communication with the inside of the vegetable compartment 109. As a result, the cold air circulated in the refrigerating compartment 106 becomes the vegetable compartment 109.
Is discharged. Circulates in the vegetable compartment 109, and the container 113A
After indirectly cooling the inside, the cool air passes from the vegetable compartment suction port 118A provided on the lower surface of the lower partition wall 105 to the inside of the vegetable compartment upper duct 118 formed in the lower partition wall 105, and then the cooling chamber 122.
Return to the inner bottom.

Reference numeral 133 is a defrost heater, 147 is a drain receiving member, and 148 is a drain hole.

[0012]

As described above, in the conventional refrigerator 101, the cool air from the cooler 115, which has a low temperature for cooling the freezer compartment 108, is circulated in the refrigerator 106 and the vegetable compartment 109. The refrigerating compartment 106 and the vegetable compartment 109 are dried, and the moisture in the refrigerating compartment 106 and the vegetable compartment 109 having high humidity adheres to the cooler 115 as frost, so that the cooling capacity of the cooler 115 is lowered. There was a problem that caused.

The cool air from the cooler 115 is supplied to the freezer compartment 1.
08, refrigerator compartment 106, ice temperature corner 107 and vegetable compartment 1
Since it is circulated and cooled in 09, the cooler 115 has to be upsized, and the cooling chamber 122 that accommodates the cooler 115 becomes large and presses the effective volume in the freezing compartment 108. Further, in order to circulate cold air to the refrigerator compartment 106 and the vegetable compartment 109, it is necessary to provide the refrigerator compartment rear duct 120, the freezer compartment rear duct, the vegetable compartment upper duct 118, and the like.
There is also a problem that the effective volumes of the freezer compartment 108, the refrigerator compartment 106 and the vegetable compartment 109 are pressed.

The present invention was made in order to solve the above-mentioned conventional technical problems, and in a refrigerator having a central freezer compartment, upper and lower refrigerating compartments, and a vegetable compartment, its effective volume is expanded. It aims to improve the storage efficiency and the cooling performance of each room.

[0015]

That is, a refrigerator 1 according to the invention of claim 1 is formed by filling a heat insulating material 2 between an outer box 3A and an inner box 3B, and the inside of a heat insulating box 3 having a front opening, A freezing compartment, which is divided by a heat insulating partition wall (upper partition wall 4, lower partition wall 5) to form a freezer compartment 8 in the center, and a refrigerator compartment 6 and a vegetable compartment 9 above and below the compartment. 8, a cooling chamber 22 partitioned and formed in the back, a cooling chamber cooler 15 installed in the cooling chamber 22, and a blower 16 for circulating cold air from the cooling chamber cooler 15 into the cooling chamber 8. And a cooling room cooling pipe 18 (ice temperature corner cooling pipe 20) provided on the heat insulating material 2 side of the inner box 3B (inner wall) corresponding to the refrigerating room 6 and an inner box 3B (inner wall) corresponding to the vegetable room 9 ) And a vegetable compartment cooling pipe 19 provided on the heat insulating material 2 side.

In the refrigerator 1 according to the second aspect of the present invention, the heat insulating material 2 is filled between the outer box 3A and the inner box 3B, and the inside of the heat insulating box 3 opened to the front is provided with a heat insulating partition wall ( Upper partition wall 4,
A cooling chamber which is divided by a lower partition wall 5) to form a central freezing chamber 8 and a refrigerating chamber 6 and a vegetable chamber 9 above and below the freezing chamber 8 and which are partitioned and formed in the inner part of the freezing chamber 8. 22 and
The cooler 15 for the freezer compartment installed in the cooling room 22, the blower 16 for circulating the cool air from the cooler 15 for the freezer compartment into the freezer compartment 8, and the inner box 3B (inner wall) corresponding to the refrigerating room 6 Cooling room cooling pipe 18 provided on the side of the heat insulating material 2
The partition wall (lower partition wall 5) that includes the (ice temperature corner cooling pipe 20) and divides the freezer compartment 8 and the vegetable compartment 9 is thin.

Further, in the refrigerator 1 according to the third aspect of the present invention, the inside of the heat insulating box 3 opening to the front is divided by the heat insulating partition walls (upper partition wall 4, lower partition wall 5) and the freezer compartment 8 in the center is divided. When,
The upper and lower refrigerating compartments 6 and the vegetable compartment 9 are formed, and the cooling compartment 22 is partitioned and formed in the freezing compartment 8 and the refrigerating compartment cooler 15A installed on the upper side of the cooling compartment 22.
And a cooler 15 for the freezer compartment installed on the lower side, and a blower 16 arranged between these coolers (cooler 15A for the refrigerator compartment, cooler 15 for the freezer compartment).
A partition wall that circulates the cool air from the freezer compartment cooler 15 into the freezer compartment 8, circulates the cool air from the refrigerator compartment cooler 15A into the refrigerator compartment 6, and partitions the freezer compartment 8 from the vegetable compartment 9. The (lower partition wall 5) is made thin.

[0018]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a vertical side view of a refrigerator 1 of the present invention. The refrigerator 1 is composed of an outer box 3A, an inner box 3B, and a heat insulating material 2 such as foamed polyurethane filled between the two boxes, and a heat insulating box body 3 that is open to the front.

The inside of the heat insulating box 3 is formed integrally with the inner box 3B and is divided by an upper partition wall 4 and a lower partition wall 5 which are integrally filled with the heat insulating material 2 therein. Four
Is a refrigerating compartment 6, a lower partition wall 5 is a vegetable compartment 9, and a central freezing compartment 8 is between them.

The front opening of the refrigerating compartment 6 is openably and closably closed by a rotary heat insulating door 10, and the freezing compartment 8 is also provided.
And the vegetable compartment 9 is a container 11A, 12A, 13 with an upper opening.
Draw-out type heat-insulating doors 11 and 12 (the freezer compartment 8 has two upper and lower stages) and 13 are openably and closably closed.

On both sides of these containers 11A, 12A and 13A, door side rails (not shown) ...
It is attached so as to extend rearward from the rear surface of the twelve and thirteen. Also, fixed rails 40 (not shown on the back side) are attached from both sides above the front opening in the freezer compartment 8 to the back, and the rails on the door side attached to the container 11A are held by the fixed rails 40, whereby the container 11A can be freely taken in and out of the freezer compartment 8. Further, fixed rails 44 (back side not shown) are attached from both sides below the front opening in the freezer compartment 8 to the inner side, and the door side rails provided on the container 12A are held on the fixed rails 44, whereby the container 12A is held. Can be freely taken in and out of the freezer compartment 8.

Further, fixed rails 46 (back side not shown) are attached from both sides of the front opening in the vegetable compartment 9 to the inner side, and the door side rails provided on the container 13A are held on the fixed rails 46, and Thus, the container 13A can be freely taken in and out of the vegetable compartment 9.

On the other hand, a cooling chamber 22 is sectioned and formed by a partition plate 21 in the deep part of the freezing chamber 8. A cooling unit 15 for the freezing chamber is vertically installed in the lower part of the cooling chamber 22 and the freezing is performed. A blower 16 is provided above the room cooler 15.
Reference numeral 33 is a defrosting heater that heats and melts the frost formed on the freezer cooler 15. Further, 47 is a drain receiving member, 48 is a drain hole, and 17 is a drain drain port of the refrigerating chamber 6, which communicates with the drain hole 48.

Further, freezing compartment discharge ports 8A, 8A are formed in the upper and central portions of the partition plate 21 in the deep part of the freezing compartment 8, and a plurality of freezing compartment suction ports 8B are formed in the lower part. The cooler 15 for the freezer compartment has a rectangular radiating fin (not shown) made of a plurality of aluminum thin plates arranged in parallel at a predetermined interval,
It is composed of a refrigerant pipe (not shown) fitted to them, and the inlet side of this refrigerant pipe is connected to a discharge side pipe of a compressor 36 described later through a pressure reducing device and a condenser (not shown), and an outlet. The side is connected to the suction side of the compressor 36.

Further, a cooling pipe 18 for the refrigerating chamber is arranged in a meandering manner on the side of the heat insulating material 2 on the upper surface of the inner box 3B which is the inner wall of the refrigerating chamber 6 and the upper partition wall 4 (which is a part of the inner box 3B). A plurality of shelves 41 on which food is placed in the refrigerating room 6
・ Is provided. One of the refrigerating compartment cooling pipes 18 is connected to the inlet side of the freezing compartment cooler 15 via an electromagnetic valve (not shown) controlled by the controller.
The other is joined to the outlet side of the freezer compartment cooler 15 and connected by piping.

On the lower surface of the lower partition wall 5 which is the inner wall of the vegetable compartment 9, a vegetable compartment cooling pipe 19 is arranged in a meandering manner on the side of the heat insulating material 2. The cooling pipe 19 for the vegetable compartment is similar to the cooling pipe 18 for the refrigerating compartment, and one of them is connected to the freezing compartment cooler 1 via an electromagnetic valve (not shown) controlled by the controller.
5 is connected to the inlet side pipe, and the other is connected to the freezer cooler 1
5 is connected to the outlet side of the pipe. Further, a machine room 35 is formed in the lower rear portion of the heat insulating box 3, and in the machine room 35, together with the freezer cooler 15 and the cooling pipes 18 and 19, a known refrigeration cycle is formed. A compressor 36 is installed.

Then, the compressor 36 and the blower 16
Is controlled by a controller (not shown) based on the temperature of the freezer compartment 8, and the depressurized refrigerant flows into the freezer compartment cooler 15 and evaporates. The cool air cooled by the freezer cooling device 15 is blown into the freezer 8 from the freezer discharge ports 8A, 8A by the blower 16. Then, after circulating in the freezer compartment 8 to be cooled, the cool air returns from the lower freezer inlet 8B to the lower part of the cooler 15 for the freezer compartment in the cooling compartment 22. Thereby, the freezer compartment 8 is maintained at a predetermined freezing temperature (about -20 ° C).

A part of the decompressed refrigerant also flows into the refrigerating compartment cooling pipe 18 through the solenoid valve and evaporates. As a result, the inner wall surface of the refrigerating compartment 6 is cooled, and the cool air naturally convects to cool the interior of the refrigerating compartment 6. Then, the solenoid valve is controlled by the control device to open and close based on the temperature of the refrigerating chamber 6,
With this, the temperature in the refrigerating chamber 6 is maintained at a predetermined refrigerating temperature (for example, about + 3 ° C.).

In the lower part of the refrigerating compartment 6, an ice temperature corner 7 partitioned from other space is defined. The ice temperature corner cooling provided inside the upper partition wall 4 under the ice temperature corner 7 is divided. The inside of the ice temperature corner 7 is relatively strongly cooled by the pipe 20 (a part of the cooling pipe 18), for example, to a low temperature of about -1 ° C.

A part of the refrigerant is the cooling pipe 1 for the vegetable compartment.
It also flows into the inside of 9 and evaporates to cool the upper wall of the vegetable compartment 9. Thereby, the cool air naturally convects and cools the vegetable compartment 9, and the control device controls the opening and closing of the electromagnetic valve based on the temperature of the vegetable compartment 9 to control the amount of the refrigerant flowing into the vegetable compartment cooling pipe 19. . Thereby, the temperature in the vegetable compartment 9 is maintained at, for example, about + 10 ° C.

In this way, the cooling pipe 18 for the refrigerating compartment is provided on the heat insulating material 2 side of the inner wall of the refrigerating compartment 6, and the lower partition wall 5 is provided.
A vegetable compartment cooling pipe 19 is provided on the lower surface heat insulating material 2 side. As a result, the inside of the refrigerating compartment 6, the inside of the ice temperature corner 7 and the inside of the vegetable compartment 9 are directly cooled, so that they are provided in the duct or the lower partition wall 5 provided in the rear wall of the refrigerating compartment 6 as in the conventional case. No need for ducts.

In particular, since the freezer compartment cooler 15 only needs to cool the freezer compartment 8, the capacity of the freezer compartment cooler 15 can be reduced. Further, since the cold air from the cooler 15 for the freezing room, which becomes a low temperature, is not supplied into the refrigerating compartment 6 or the vegetable compartment 9, the food stored in the refrigerating compartment 6 or the vegetable compartment 9 will not be dried. Furthermore, it is possible to prevent the humidity in the refrigerating compartment 6 and the vegetable compartment 9 from adhering to the freezer compartment cooler 15 as frost and deteriorating the cooling capacity. Therefore, the effective volume (storage space) of the freezing compartment 8, the refrigerating compartment 6 and the vegetable compartment 9 can be extremely widened, and the storage efficiency of the refrigerator 1 can be greatly improved.

Next, FIG. 2 shows another refrigerator 1 according to the present invention.
Is shown. In each drawing, the same reference numerals as those in FIG. 1 indicate the same parts, but in this case, the lower partition wall 5 is not provided with the vegetable compartment cooling pipe 19 and the lower partition plate 5 has a heat insulation thickness smaller than that of the conventional one. To do. As a result, the vegetable compartment 9 is indirectly cooled by the cooling action from the freezing compartment 8 that transmits the lower partition wall 5.

That is, also in this case, the refrigerating compartment cooling pipe 18 is provided on the inner wall of the refrigerating compartment 6, the refrigerating compartment 6 is directly cooled by the cooling pipe 18, and the vegetable compartment 9 covers the lower partition wall 5. Since it is cooled indirectly from the freezer compartment 8 by making it thin, the duct provided in the rear wall of the refrigerating compartment 6 and the duct provided in the lower partition wall 5 as in the prior art are not required.
Further, since it is not necessary for the freezer compartment cooler 15 to cool the refrigerating compartment 6, the capacity of the freezer compartment cooler 15 can be made smaller than before, and the effective volume of each compartment can be generally expanded.

Further, the inside of the refrigerating room 6 and the inside of the vegetable room 9 are set in the freezing room 8
The food stored in the refrigerating compartment 6 and the vegetable compartment 9 does not dry because it is not communicated with. In particular, in this case, since the cooling pipe for the vegetable compartment is not necessary, the cost can be reduced by reducing the number of parts.

Next, FIGS. 3 to 5 show another refrigerator 1 of the present invention. In each figure, the same reference numerals as those in FIGS. 1 and 2 have the same or similar effects. Also in this case, the cooling chamber 22 is defined by the partition plate 21 in the deep part of the freezing chamber 8, and the cooling chamber cooler 15 dedicated to the freezing chamber 8 is provided below the cooling chamber 22. ing. Further, a refrigerating compartment cooler 15A dedicated to the refrigerating compartment 6 is provided on the upper side of the cooling compartment 22.
The blower 16 is provided between 5 and the refrigerator cooler 15A.

The partition plate 21 has a freezing chamber discharge port 8A formed substantially in the center and a plurality of suction ports 8B formed in the lower part. A refrigerating compartment rear duct 4B is formed in the inner part of the refrigerating compartment 6 extending in the vertical direction. The lower portion of the refrigerating compartment rear duct 4B communicates with the front side of the blower 16 of the cooling compartment 22 and a refrigerating compartment discharge port (not shown) is formed on the upper front surface of the refrigerating compartment rear duct 4B. . Further, a refrigerating chamber suction port 4 </ b> A is formed in the front portion of the upper surface of the upper partition wall 4 and communicates with the upper portion of the cooling chamber 22.

The heat insulating thickness of the lower partition wall 5 is also thin.

When the refrigerator 1 is operated, the compressor 36 and the blower 16 are operated and controlled by the control device (not shown) based on the temperature of the freezer compartment 8 as described above. The cool air cooled by the freezer compartment cooler 15 is blown into the freezer compartment 8 from the freezer compartment discharge port 8A by the blower 16. And
After being circulated in the freezer compartment 8 to be cooled, the cool air returns from the lower freezer compartment inlet 8B ... to the lower part of the refrigerator compartment cooler 15 in the cooling compartment 22 and is cooled to the freezer compartment cooler 15. To be done.
As a result, the freezer compartment 8 has a predetermined freezing temperature (-20 ° C).
About).

The cool air cooled by the refrigerator cooling device 15A is blown into the refrigerating chamber 6 from the refrigerating chamber discharge port by the blower 16 through the refrigerating chamber rear duct 4B.
Then, after circulating in the refrigerating compartment 6 to cool, the cool air returns from the lower refrigerating compartment inlet 4A to the upper part of the refrigerating compartment cooler 15A in the cooling compartment 22 and is cooled by the refrigerating compartment cooler 15A. It The supply of the refrigerant to the refrigerating compartment cooler 15A is controlled based on the temperature of the refrigerating compartment 6, whereby the interior of the refrigerating compartment 6 is cooled to, for example, + 3 ° C. as described above.

On the other hand, the vegetable compartment 9 is indirectly cooled by the cooling action from the freezing compartment 8 which transmits the lower partition wall 5. That is, the refrigerating compartment 6 is cooled by the refrigerating compartment cooler 15A, and the vegetable compartment 9 is formed by thinning the lower partition wall 5.
Since it is indirectly cooled from the freezer compartment 8, the duct provided in the lower partition wall 5 as in the conventional case is not necessary. Further, since it is not necessary for the freezer compartment cooler 15 to cool the refrigerating compartment 6, the capacity of the freezer compartment cooler 15 can be made smaller than before, and the effective volume of each compartment can be generally expanded.

Further, the inside of the refrigerating room 6 and the inside of the vegetable room 9 are set in the freezing room 8
The food stored in the refrigerating compartment 6 and the vegetable compartment 9 does not dry because it is not communicated with.

Next, FIGS. 6 to 8 show another embodiment of FIGS. 3 to 5. Also in this case, the cooling chamber 22 is partitioned and formed by the partition plate 21 in the inner part of the freezing chamber 8, and the cooling chamber 22A partitioned by the partition plate 21A is partitioned and formed below the upper partition wall 4. ing. And this cooling chamber 22
A freezer compartment cooler 15 dedicated to the freezer compartment 8 is provided inside, and a refrigerating compartment cooler 15A dedicated to the refrigerating compartment 6 is provided inside the upper cooling compartment 22A, and between the both coolers 15 and 15A. The blower 16 is provided above the cooling chamber 22.

A freezing chamber discharge port 8A is formed in a substantially central portion of the partition plate 21, and a plurality of suction ports 8B are formed in a lower portion thereof. A refrigerating compartment rear duct 4B is formed in the deep part of the refrigerating compartment 6 and extends in the up-down direction, and communicates the lower portion to the front side of the blower 16 in the cooling compartment 22. This refrigerating compartment rear duct 4B is formed. A refrigerating compartment discharge port (not shown) is formed on the upper front surface of the. Further, a refrigerating compartment suction port 4A is formed in the front portion of the upper partition wall 4, and the refrigerating compartment suction port 4A communicates with the front portion of the cooling chamber 22A. With such a configuration, the same effects as those in FIGS. 3 to 5 can be obtained.

In addition, although the home refrigerator is described in the embodiment, the present invention is not limited to this, and the present invention can be applied to various refrigerators in which a cooler for cooling the inside is used and the inside is divided into a plurality of parts and each is controlled at different temperatures. Is valid.

[0046]

As described above in detail, according to the invention of claim 1, the cooler for the freezer compartment is installed in the cooling chamber formed at the inner part of the freezer compartment, and the cool air from the cooler for the freezer compartment is blown by the blower. While circulating in the freezer compartment, the refrigerating compartment cooling pipe is provided on the heat insulating material side of the inner wall of the upper refrigerating compartment, and the vegetable compartment cooling pipe is provided on the heat insulating material side of the inner wall of the lower refrigerating compartment.
It becomes possible to cool the freezer compartment, the refrigerator compartment, and the vegetable compartment, respectively, and the duct for circulating the cold air in the refrigerator compartment or the vegetable compartment and the large-sized refrigerator refrigerator are not required. Therefore, it is possible to expand the effective volume of each room and significantly improve the storage efficiency of the refrigerator.

In particular, it is possible to prevent the refrigerating compartment and the vegetable compartment from being dried due to the circulation of cold air from the freezing compartment, and to suppress the reduction of the cooling capacity due to the frost formation of the refrigerator for the freezing compartment.

According to the second aspect of the invention, the cooler for the freezer compartment is installed in the cooling compartment formed in the inner part of the freezer compartment, and the cool air from the cooler for the freezer compartment is circulated in the freezer compartment by the blower. In addition, a cooling pipe for the refrigerating compartment is provided on the heat insulating material side of the inner wall of the refrigerating compartment, and the partition wall that divides the freezing compartment and the vegetable compartment is thinly configured, so that the freezing compartment and the refrigerating compartment can be cooled respectively, and the vegetables can be cooled. The chamber can be cooled indirectly by the cooling action from the freezing chamber transmitting the partition wall.

Therefore, a duct for circulating cold air in the refrigerating room or the vegetable room is not required, and the refrigerator for the freezing room can be made smaller than before, so that the effective volume of each room can be increased and the refrigerator can be It is possible to greatly improve the storage efficiency.

In particular, it is possible to prevent the refrigerating compartment and the vegetable compartment from being dried due to the circulation of cold air from the freezing compartment, and to suppress the deterioration of the cooling capacity due to the frost formation of the freezer compartment cooler.
Further, since the cooling pipe for the vegetable compartment is not necessary, the cost can be reduced by reducing the number of parts.

Further, according to the third aspect of the present invention, the refrigerating compartment cooler is provided on the upper side of the cooling compartment formed in the inner part of the freezing compartment at the center, and the refrigerating compartment cooler is provided on the lower side of the cooling compartment. Then, a blower is arranged between these coolers to circulate the cool air from the cooler for the freezer compartment into the freezer compartment and the cool air from the cooler for the refrigerator compartment into the refrigerator compartment to partition the freezer compartment from the vegetable compartment. Since the walls are thinned, the freezing compartment and the refrigerating compartment can be cooled respectively, and the vegetable compartment can be indirectly cooled by the cooling action from the freezing compartment transmitting the partition wall.

Therefore, the duct for circulating the cold air in the vegetable compartment is not necessary, and since the refrigerator for the refrigerating compartment is provided above the cooling compartment, the duct to the refrigerating compartment can be downsized.
In addition, the refrigerator for the freezer can be made smaller than before, so that the effective volume of each room can be expanded and the storage efficiency of the refrigerator can be significantly improved.

In particular, it is possible to prevent or suppress the drying of the refrigerating room and the vegetable room due to the circulation of the cool air from the cooler for the freezer compartment having a low temperature, and to suppress the deterioration of the cooling capacity due to the frost formation of the cooler for the freezer compartment. It is possible.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a refrigerator of the present invention.

FIG. 2 is a vertical sectional side view of another refrigerator of the present invention.

FIG. 3 is a vertical sectional front view of a central portion of a refrigerator according to another embodiment of the present invention.

FIG. 4 is a vertical side view of the refrigerator of FIG.

5 is a plan sectional view of the refrigerator of FIG.

FIG. 6 is a vertical sectional front view of a central portion of a refrigerator of another embodiment corresponding to the invention of FIG.

7 is a vertical side view of the refrigerator of FIG.

8 is a plan sectional view of the refrigerator of FIG.

FIG. 9 is a vertical sectional side view of a conventional refrigerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Insulation material 3 Insulation box body 3A Outer box 3B Inner box 4 Upper partition wall 5 Lower partition wall 6 Refrigerating room 8 Freezing room 15 Cooling room cooler 15A Cooling room cooler 16 Blower 18 Cooling room cooling pipe 19 Vegetable room cooling pipe 21 Partition plate 22 Cooling chamber

Claims (3)

[Claims] 1. A heat insulating material is filled between an outer box and an inner box,
In a refrigerator in which a heat-insulating box body opening to the front is divided by a heat-insulating partition wall to form a freezing room in the center, and a refrigerating room and a vegetable room above and below the freezing room, a partition is formed in the back part of the freezing room. The cooling chamber, the refrigerator for the freezer installed in the cooling chamber, the blower for circulating the cool air from the refrigerator for the freezer in the freezing chamber, and the heat insulating material side of the inner wall of the refrigerating chamber. A refrigerator comprising a refrigerating room cooling pipe and a vegetable room cooling pipe provided on the heat insulating material side of the inner wall of the vegetable room. 2. A heat-insulating material is filled between the outer box and the inner box,
In a refrigerator in which a heat-insulating box body opening to the front is divided by a heat-insulating partition wall to form a freezing room in the center, and a refrigerating room and a vegetable room above and below the freezing room, a partition is formed in the back part of the freezing room. The cooling chamber, the refrigerator for the freezer installed in the cooling chamber, the blower for circulating the cool air from the refrigerator for the freezer in the freezing chamber, and the heat insulating material side of the inner wall of the refrigerating chamber. A refrigerator comprising a refrigerating room cooling pipe, wherein a partition wall for partitioning the freezing room and the vegetable room is thin. 3. A refrigerator in which a heat-insulating box body having an opening at the front is partitioned by a heat-insulating partition wall to form a central freezing room and upper and lower refrigerating rooms and a vegetable room, wherein the freezing room is partitioned. The cooling chamber formed, the refrigerator for the refrigerator installed on the upper side of the cooling chamber and the cooler for the freezing room installed on the lower side, and a blower arranged between these coolers, the blower, The cold air from the refrigerator cooler is circulated in the freezer compartment, the cool air from the refrigerator cooler is circulated in the refrigerator compartment, and the partition wall that divides the freezer compartment and the vegetable compartment is made thin. A refrigerator characterized by that.