JP3410350B2 - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve an increase in the housing capacity of a refrigerator as a whole, a conservation of power and easiness in handling of each chamber by cooling a vegetable chamber the highest in the temperature by conduction and radiation heat from the surrounding areas to simplify the structure of a cool air path. SOLUTION: There are arranged independently a cold storage compartment 3 at an upper part of the body 1 of a refrigerator, a low temperature chamber 6 at a lower part of the compartment, a freezer compartment 12 at a lower part of the body 1 of the refrigerator and a vegetable chamber 9 between the low temperature chamber 6 and the freezer compartment 12. The cold storage compartment 3 has a slide door 2, the low temperature chamber 6, the vegetable chamber 9 and the freezer compartment 12 have drawer doors 5, 8 and 11 respectively. A compressor 18 is installed at the rear lowest part of the body 1 of the refrigerator and a cooler 16 behind the vegetable chamber 9. The vegetable chamber 9 is surrounded by the low temperature chamber 6, the freezer compartment 12 and the cooler 16 to be cooled by conduction heat and radiation heat from them. This eliminates a path for sending cool air for forced cooling to 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 having a plurality of storage chambers with different temperature settings, which are used according to the food to be stored.

[0002]

2. Description of the Related Art Generally, a refrigerator has a refrigerating room at a temperature of about 4 ° C., a low temperature room at about -1 ° C., a vegetable room at about 6 ° C., and -18 ° C.
It is equipped with four storage compartments, which are freezer compartments. In addition, the refrigerator has various arrangements of the refrigerator compartment, the low temperature compartment, the vegetable compartment, and the freezer compartment in the vertical direction of the refrigerator body so that the refrigerator can be selected according to the changes in eating habits of each household.

For example, in the refrigerator disclosed in Japanese Patent Laid-Open No. 6-273031, a refrigerating room and a low temperature room are provided in the upper part of the refrigerator body, a vegetable room is provided in the lower part, and a freezing room is provided in the middle. ing. Further, a cooler and an electric fan provided at the rear of the freezing room and one compressor are provided, and the cool air is sent to each room by the electric fan through the cool air passages provided to cool the set temperature. There is.

In the refrigerator disclosed in Japanese Patent Laid-Open No. 9-113108, a refrigerating room and a low temperature room are provided in the upper part of the refrigerator body, a freezing room is provided in the lower part, and a vegetable room is provided in the middle. . Further, a cooler and an electric fan provided at the rear of the freezing room and one compressor are provided, and the cool air is sent to each room by the electric fan through the cool air passages provided to cool the set temperature. There is.

[0005]

In both of the above-mentioned prior arts, cold air that has undergone heat exchange in the cooler is sent to all the rooms by an electric fan to cool them. The load is high and the amount of power consumed by operation is large. In addition, when a large amount of food is suddenly replenished or when there is a high load such as high outside air temperature, one compressor will be burdened and the life will be affected. This is not preferable because it takes time, and further, a large amount of electric power is required to operate the compressor, which is not preferable in terms of power saving and the environment.

Further, in both the above-mentioned prior arts, it is necessary to provide a cold air passage for guiding cold air to each room in a limited space of the refrigerator main body, and therefore the storage capacity of the entire refrigerator is adversely affected, and This is not preferable because it makes the structure of the cold air passage complicated and causes a cold air leak due to it.

Furthermore, in both of the above-mentioned conventional techniques, since the low temperature chamber is located inside the refrigerating chamber, it does not have an independent door and the storage volume cannot be increased, resulting in poor usability.

In the former case of the prior art, since the vegetable compartment is located at the bottom of the refrigerator body, it is inconvenient to bend and put heavy vegetables in and out.

The present invention solves the above-mentioned problems.
By cooling the room with the highest temperature by conduction and radiant heat from the surroundings, the structure of the cold air passage was simplified and the storage capacity of the refrigerator as a whole was increased, as well as saving electricity and improving the usability of each room. Provide a refrigerator.

[0010]

According to the present invention, there is provided a refrigerator main body which is arranged in order from the top and has an opening / closing door.
Chamber, second chamber, third chamber, fourth chamber, and the first chamber, second chamber,
Cooler and electric fan for sending cool air to the 4th chamber, 4th
The second chamber has a lower temperature than the first chamber, the third chamber has a higher temperature than the first chamber, and the fourth chamber has a lower temperature than the second chamber. , The cooler is provided behind the third chamber, and the third chamber is provided with a cooler, a second
The chamber and the fourth chamber are cooled by conduction and radiant heat.

Thus, since it is the third chamber having the highest temperature as compared with the other chambers, it is possible to cool by conduction and radiant heat from the cooler, the fourth chamber having the lowest temperature, and the second chamber having the next lowest temperature. Becomes

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The invention described in claim 1 of the present invention includes a first chamber, a second chamber, a third chamber, and a fourth chamber, which are arranged in order from the top in a refrigerator main body and have opening and closing doors, respectively. , First
A cooler for sending cold air to the chambers, the second chamber and the fourth chamber, an electric fan, and a compressor provided at the rear of the fourth chamber. The second chamber has a lower temperature than the first chamber, and the third chamber has the third temperature. higher temperature than room, together with the fourth chamber is respectively set lower temperature than the second chamber, the cooler is provided in the rear of the third chamber, most than other chambers
The third chamber, which has a high temperature, is connected to the rear cooler and the lowermost cooler.
The fourth chamber having the lower temperature and the second chamber having the next lower temperature above
It is surrounded by a chamber and is cooled by conduction and radiant heat from these coolers, the second chamber and the fourth chamber.

Thus, since the temperature of the third chamber is higher than that of the other chambers, it is possible to cool by conduction and radiant heat from the cooler, the fourth chamber having the lowest temperature, and the second chamber having the next lowest temperature. Therefore, it is not necessary to specially provide a passage for guiding the cool air to the third chamber, and the load of the compressor and the electric fan is reduced to save electricity, simplify the cool air passage, and increase the storage capacity of the entire refrigerator.

According to a second aspect of the present invention, a refrigerating room is provided at the upper part of the refrigerator body, a low temperature room is provided at the lower part thereof, a freezing room is provided at the lower part of the refrigerator body, and a vegetable room is provided between the low temperature room and the freezing room. The refrigerating room has a side opening door, a low temperature room,
The vegetable compartment and the freezer compartment have a drawer door, a compressor is provided at the lower rear of the refrigerator body, and a cooler is provided at the rear of the vegetable compartment. The vegetable compartment is at the rear cooler and the lower freezer compartment and the upper compartment.
Surrounded by the low temperature chamber, the cooler, the freezer and the
It is designed to be cooled by conduction and radiant heat from a low greenhouse .

Since this is the highest temperature vegetable compartment and the low temperature compartment is independent from the other compartments, conduction and conduction from the cooler, the lowest temperature independent freezing compartment, and then the lowest temperature low temperature compartment. It is possible to cool with radiant heat, so there is no need to provide a passage for introducing cold air to the vegetable compartment, and the load of the compressor and electric fan is reduced to save electricity and simplify the cold air passage and the storage capacity of the entire refrigerator. Leads to an increase in In addition, the refrigerator compartment, which is frequently used, is located in the upper part, the low temperature compartment and the vegetable compartment are located in the middle, and the drawer door is provided. You can put food in and out of it with a comfortable posture.

According to the present invention described in claim 3, in addition to the invention described in claim 2, the low temperature compartment and the vegetable compartment are separated from the cooler by a partition member.

As a result, the low temperature chamber and the vegetable compartment can be separated from the cooler behind the vegetable compartment by one partition member.
The number of parts is smaller than in the case of partitioning individually, sealing and assembly are easy, and the structure of the cold air passage can be simplified.

The present invention described in claim 4 is, in addition to the invention described in claim 2, further characterized in that the low temperature chamber is partitioned from the vegetable chamber by a partition wall.

Thus, when the partition wall is installed, the low temperature room and the vegetable room are integrated into a large room by one partition member that partitions the rear cooler, and the partition wall is partitioned from the wide opening. Since it suffices to push it toward the member and apply it, the workability of sealing and assembling is improved.

In addition to the invention described in claim 2, the invention described in claim 5 is one in which the temperature of the refrigerating room and the vegetable room is controlled by one temperature control means.

As a result, the vegetable compartment is cooled by being surrounded by the independent low temperature compartment, freezer compartment and cooler, and the required temperature can be secured without forcibly introducing the cooling air. Therefore, it is not necessary to control the temperature independently, and only the passage for adjusting the humidity and the like is required. Therefore, the structure of the cold air passage can be simplified, the assembly is easy, and the storage case can be large.

In addition to the structure described in claim 2, the invention described in structure 6 is such that the temperature of the low temperature chamber is controlled by one temperature control means.

As a result, the low temperature chamber can independently perform fine temperature control with little load fluctuation, and it is possible to store fresh food for a long period of time.

In addition to the invention described in claim 6, the invention described in claim 7 is such that the temperature control means can switch the room temperature.

As a result, it is possible to switch the low temperature room to a freezing room, a refrigerating room, a vegetable room, etc., and it is possible to cope with a change in the required storage amount of each food.

According to the present invention described in claim 8, in addition to the structure described in claim 2, the low temperature chamber has a low temperature chamber passage for guiding cool air from the ceiling surface to the low temperature chamber.

As a result, cold air can be evenly introduced into the low temperature chamber, and the temperature can be quickly stabilized.

According to the present invention described in claim 9, in addition to the structure described in claim 2, the freezer compartment is provided with a plurality of storage cases.

As a result, the food can be organized in a plurality of storage cases, and the storage amount can be increased and the storage can be easily performed.

According to a tenth aspect of the present invention, in addition to the ninth aspect, an ice storage case is provided separately from the storage cases.

As a result, the ice storage case can be left in the freezer compartment even when the other storage case is pulled out from the freezer compartment, so that the ice is unlikely to melt and odors and dust from food in the other storage case adhere and dust. Adhesion of can be avoided.

According to the present invention of claim 11, in addition to the invention of claim 9, the freezer compartment has a cold air passage for independently discharging cold air to the storage case.

As a result, it is possible to efficiently cool each of the storage cases and make the temperature uniform.

According to the twelfth aspect of the present invention, in addition to the one according to the second aspect, there is provided a freezing compartment passage for guiding the cold air sent from the cooler by the electric fan to the freezing compartment, and the freezing compartment passage is frozen. It is gradually inclined toward the freezing room toward the room.

As a result, the cool air to the freezer can be naturally smoothly lowered even under its own weight, and the load on the electric fan can be reduced.
It is possible to guide cold air efficiently.

According to a thirteenth aspect of the present invention, in addition to the one according to the second aspect, the freezer compartment is provided with a freezer compartment return passage to the cooler behind the freezer compartment passage for introducing cold air to the freezer compartment. It is a thing.

As a result, the freezer compartment passage and the freezer compartment return passage can be manufactured compactly.

According to a fourteenth aspect of the present invention, in addition to the one according to the second aspect, a partition is provided between a freezing compartment passage for introducing cold air to the freezing compartment and a freezing compartment return passage to the cooler. It is a thing.

As a result, the short circuit of the cool air between the freezer compartment passage and the freezer compartment return passage cannot occur even if both the passages are manufactured compactly, and the cold air can surely flow in and out.

[0040]

EXAMPLES Examples of a refrigerator according to the present invention will be described below with reference to FIGS.
Description will be given with reference to FIG. 7. 1 is a vertical cross-sectional view mainly showing each room of the refrigerator main body, FIG. 2 is a block diagram showing a flow of cold air from the cooler to each room, and FIG. 3 is a refrigerator main body schematically shown in FIG. 4 is a perspective view of the second chamber and the third chamber portion which are the low temperature chamber and the like, and FIG. 5 is FIG.
6 is a partially exploded perspective view of FIG. 6, FIG. 6 is an enlarged cross-sectional view of a fourth chamber portion that becomes the same freezing room, and FIG.
It is a front view of a chamber part.

Reference numeral 1 denotes a vertically long refrigerator main body. The refrigerator body 1 has a refrigerating room 3 having a side opening / closing door 2 as a first room which is used at a temperature of about 4 ° C.
A low temperature chamber 6 having a drawer door 5 as a second chamber which is used below the refrigerating chamber 3 with a temperature of about 0 to 3 ° C. via a heat insulating partition wall 4, and below the low temperature chamber 6. Partition wall 7
A vegetable compartment 9 having a drawer door 8 as a third compartment, which is used by setting the temperature to about 6 ° C., and a temperature set at about −18 ° C. via an insulating partition wall 10 below the vegetable compartment 9. And a freezer compartment 12 having a drawer door 11 as a fourth compartment. Further, the refrigerator body 1 is composed of a housing formed of a metal outer box 13, a resin inner box 14 and a heat insulating material 15 filled between them. The opening / closing door 2, the drawer door 5, the drawer door 8, and the drawer door 11 also have the same structure as the case. Reference numeral 16 denotes a cooler as an evaporator provided in the rear of the vegetable compartment 9, which is separated from the front vegetable compartment 9 and the low temperature compartment 6 by a partition member 17 formed of a heat insulating material or the like. Reference numeral 18 denotes one compressor provided at the rear of the lowermost portion of the refrigerator main body 1, which is connected to a cooler 16, a condenser, a throttle means, a dryer (not shown), etc. by a refrigerant pipe to form a known refrigeration circuit. is doing. Reference numeral 19 denotes an electric fan provided in the rear of the vegetable compartment 9, which sends cold air that has caused an air flow to exchange heat with the cooler 16 to the refrigerating compartment 3, the low temperature compartment 6 and the freezing compartment 12, respectively, for cooling. On the other hand, since the temperature of the vegetable compartment 9 is the highest among the compartments, the vegetable compartment 9 is surrounded by the independent low temperature compartment 6 at the top, the cooler 16 at the rear, and the freezer compartment 12 at the bottom, and cooled by conduction heat and radiant heat from these compartments. It is designed to be possible. Here, a path for sending the cool air to each room by the electric fan 19 will be described with reference to FIG. The cold air that has undergone heat exchange in the cooler 16 is branched from the cold air passage 20 and guided to the freezing compartment passage 21, and a plurality of ice storage cases 22, an upper case 23, and a lower case 24, which are also provided in the freezing compartment 12, also serve as the cold air M, respectively. N,
Independent cold air passages 22a, 23a, 24 as indicated by O
It is released from a and spreads evenly. Further, the cold air is diverted from the cold air passage 20 and guided to the refrigerating compartment passage 25, where the cold air A
Then, it enters the temperature control means 26 such as a damper, and is discharged from the back walls on both sides in the upper part of the refrigerating chamber 3 as shown by the cool air B. Similarly, the cold air D enters the temperature control means 27 such as a damper and is discharged to the low temperature chamber 28 of the refrigerating chamber provided in the lower part of the refrigerating chamber 3 as indicated by the cool air E. Similarly, the cold air J is guided to the low temperature chamber passage 29 and is made up of a damper or the like.
It enters the temperature control means 30 capable of switching the room temperature, passes through the low temperature chamber passage 4a in the heat insulating partition wall 4, and is discharged from the front side of the low temperature chamber 6 as indicated by cold air K.

Further, the cold air P that has exchanged heat in the freezer compartment 12 returns to the cooler 16 through the freezer compartment return passage 31. Further, the cold air C and F, which have increased in temperature by exchanging heat in the refrigerating compartment 3 and the low temperature compartment 28 in the refrigerating compartment, join to become the room temperature adjusted air G from the front side of the vegetable compartment 9 through the passage 7a of the partition wall 7. Room temperature adjustment H
It is released as shown in (4) and used for adjusting the temperature of the vegetable compartment 9 when it is too cold. Furthermore, part of the room temperature adjusted air G merges with the cool air L from the low temperature chamber 6 and the room temperature adjusted air I from the vegetable room 9 and returns to the cooler 16. In the embodiment, the flow of cold air is the refrigerating compartment 3, the vegetable compartment 9, and the cooler 16.
You may make it flow through the low greenhouse 6, the vegetable compartment 9, and the cooler 16. Further, the flow of cold air from the vegetable compartment 9 to the cooler 16 may pass through a passage from the low temperature compartment 6 to the cooler 16 other than the embodiment.

As shown in FIG. 5, the partition member 17 is a heat insulating material 17a having a size that covers the entire inner walls of the low temperature chamber 6 and the vegetable chamber 9, and is fitted to the heat insulating member 17a of the low temperature chamber 6 and the vegetable chamber 9. It is made of a resin plate 17b which becomes the inner wall. The plate 17b is integrally provided with a recess 32 into which the partition wall 7 fits. On the other hand, heat insulating material 1
7a is provided with a recess 32a so as to receive the back surface of the recess 32. Reference numeral 33 is a passage for each cold air, and 34 is a cover of the passage 33. Reference numeral 35 denotes an elastic partition provided at the lowermost outlet of the freezer compartment passage 21, and when the drawer door 11 is closed, the rear part of the lower case 24 hits and the airtightly connects the freezer compartment passage 21 and the freezer compartment return passage 31. Partition so that a cold short circuit does not occur between them. Numeral 36 is a drawer means for independently supporting the ice storage case 22 and the upper case 23 so as to be drawn out, and is provided in the freezer compartment 12.

In the above-described embodiment, when the compressor 18 is operated, the cooler 16 and the electric fan 19 are operated. Then, as described above with reference to FIG. 2, cold air is circulated to cool the refrigerating chamber 3, the refrigerating chamber low temperature chamber 28, the low temperature chamber 6, and the freezing chamber 12.

The vegetable compartment 9 is surrounded by a low temperature compartment 6, a freezer compartment 12 and a cooler 16 which are independent of the refrigerating compartment 3 and cooled by conduction and radiant heat from these compartments. Therefore, the cooler 1
The required temperature can be secured without forcing the cold air that has undergone heat exchange in 6 to the vegetable compartment, and it is not necessary to control the temperature independently, and the temperature control means 26 of the refrigerating compartment 3 may be used. Also,
A passage for guiding cold air to the vegetable compartment 9 does not need to be specially provided, so that the load of the compressor 18 and the electric fan 19 can be reduced to save power, simplify the cold air passage, and increase the storage capacity of the entire refrigerator. In addition, the refrigerator compartment 3 which is frequently used is arranged in the upper part, the low temperature compartment 6 and the vegetable compartment 9 are arranged in the middle, and the drawer door is provided. The food can be taken in and out of the vegetable room 9 with a comfortable posture.

Since the vegetable compartment 9 and the low temperature compartment 6 are separated from the rear cooler 16 by one partition member 17,
The work is easier than the case of partitioning individually, the sealing and assembly are easy, and the structure of the cold air passage can be simplified. That is, the partition member 17 is pushed into the interior of the refrigerator body 1 and fixed at a predetermined position. Then, when the partition wall 7 is horizontally pushed into a large room in which the vegetable compartment 9 and the low temperature compartment 6 are integrated and the rear end is fitted into the recess 32 of the partition member 17, the vegetable compartment 9 and the low temperature compartment 6 can be partitioned at the same time. And the work of sealing and assembling can be done easily.

Further, since the low temperature chamber 6 is controlled by the temperature control means 30 such as a single damper, it is possible to perform fine cooling control with less load fluctuation and to shorten the cold air passage to the low temperature chamber 6. Further, since the room temperature can be switched by the temperature control means 30, when the frozen food, the chilled food, and the vegetables, etc. are temporarily increased for some reason, any of the freezing room, the refrigerating room, and the vegetable room. It can be used by switching to crab. In such a low temperature chamber 6, cold air is radiated from the front side of the low temperature chamber 6 through the low temperature chamber passage 4a in the heat insulating partition wall 4 and is poured down from the ceiling.

When the drawer door 11 of the freezer compartment 12 is pulled out, only the lower case 24 is pulled out, and the ice storage case 2
2. The upper case 23 remains in the freezer compartment 12, and the heat insulation partition wall 10 is located at the upper part. If necessary, the ice storage section 22 and the upper case 23 can be independently pulled out and carried through the pulling-out means 36 for use. Further, cold air is discharged to the ice storage case 22, the upper case 23, and the lower case 24 from independent cold air passages 22a, 23a, and 24a, respectively, and the cold air is evenly distributed in each of the cases.

Further, since the freezer compartment passage 21 for guiding the cool air to the freezer compartment 12 is gradually inclined toward the freezer compartment toward the freezer compartment, the electric fan naturally descends smoothly even with its own weight of the cool air. The discharge force of 19 can be reduced, the load can be reduced, and cool air can be efficiently guided.

Further, behind the freezing chamber passage 21, there is provided a freezing chamber return passage 31 for cold air that has exchanged heat in the freezing chamber 12, and particularly a part of the inner box 14 is used. Therefore,
The entire cold air passage can be made compact, and the storage case can be made large.

Further, even though the freezer compartment passage 21 and the freezer compartment return passage 31 described above are designed compactly, the partition portion 35 separates them from each other, so that cold air does not short-circuit and is drawn out. When the door 11 is closed as usual, the lower case 24 hits the partition 35 to partition the door, so that the partition can be easily confirmed.

[0052]

As described above, the present invention according to claim 1 has a first chamber, a second chamber, a third chamber, and a fourth chamber, which are sequentially arranged in the refrigerator body from the top and have opening and closing doors, respectively. First
A cooler for sending cold air to the chambers, the second chamber and the fourth chamber, an electric fan, and a compressor provided at the rear of the fourth chamber. The second chamber has a lower temperature than the first chamber, and the third chamber has the third temperature. higher temperature than room, together with the fourth chamber is respectively set lower temperature than the second chamber, the cooler is provided in the rear of the third chamber, most than other chambers
The third chamber, which has a high temperature, is connected to the rear cooler and the lowermost cooler.
The fourth chamber having the lower temperature and the second chamber having the next lower temperature above
It is surrounded by a room and is cooled by conduction and radiant heat from these coolers, the second room, and the fourth room. It is the third room, which has the highest temperature than the other room, and the second room is more than the other room. Being independent, it is possible to cool with conduction and radiant heat from the cooler, the coldest 4th chamber, and then the cooler independent 2nd chamber, and thus specifically for cooling to the 3rd chamber. Since it is not necessary to provide a passage for guiding the cold air, the load of the compressor and the electric fan can be reduced to save power, the cold air passage can be simplified, and the storage capacity of the entire refrigerator can be increased.

According to a second aspect of the present invention, a refrigerator compartment is provided at an upper portion of the refrigerator body, a low temperature compartment is provided at a lower portion thereof, a freezer compartment is provided at a lower portion of the refrigerator body, and a vegetable compartment is provided between the low temperature compartment and the freezer compartment. The refrigerating room has a side opening door, a low temperature room,
The vegetable compartment and the freezer compartment have a drawer door, a compressor is provided at the lower rear of the refrigerator body, and a cooler is provided at the rear of the vegetable compartment. The vegetable compartment is at the rear cooler and the lower freezer compartment and the upper compartment.
Surrounded by the low temperature chamber, the cooler, the freezer and the
It is designed to be cooled by conduction and radiant heat from a low greenhouse. <br /> Since the vegetable room with the highest temperature and the low temperature room are independent from other rooms, the cooler and the freezer room with the lowest temperature are available. Then, it becomes possible to cool by conduction and radiant heat from an independent low temperature chamber of the next lower temperature, so that it is not necessary to provide a passage for guiding the cold air for forced cooling to the vegetable compartment, and the compressor and the electric motor It is possible to save electricity by reducing the load on the fan, simplify the cold air passage, and increase the storage capacity of the entire refrigerator. In addition, the refrigerator compartment, which is frequently used, is located in the upper part, the low temperature compartment, and the vegetable compartment are located in the center, and the drawer door is provided.
You can easily move food in and out of the vegetable room.

In addition to the structure described in claim 2, the invention described in claim 3 is such that the low temperature chamber and the vegetable chamber are separated from the cooler by a partition member, and one partition member serves as the low temperature chamber. Since the vegetable compartment is separated from the cooler at the rear of the vegetable compartment, the number of parts can be reduced as compared with the case where the compartments are individually separated, the sealing and assembling are easy, and the structure of the cold air passage can be simplified.

In addition to the structure described in claim 2, the invention described in claim 4 is such that the low temperature chamber is separated from the vegetable room by a partition wall, and the partition wall is installed between the low temperature room and the vegetable room.
With a partitioning member that separates the cooler from the rear, the low temperature room and the vegetable compartment become one large room. You can improve your sex.

In addition to the invention described in claim 2, the invention described in claim 5 is one in which the temperature of the refrigerating room and the vegetable room is controlled by one temperature control means. It is cooled by being surrounded by a room and a cooler, and the necessary temperature can be secured without forcibly introducing cooling air. Therefore, it is not necessary to control the temperature independently, and only the passage for adjusting the humidity and the like is required. Therefore, the structure of the cold air passage can be simplified, the assembly is easy, and the storage case can be large.

The present invention described in claim 6 is, in addition to the invention described in claim 2, that the temperature of the low temperature chamber is controlled by one temperature control means. It can be done easily and can preserve fresh food for a long time.

In addition to the structure described in claim 6, the invention described in claim 7 is such that the temperature control means is capable of switching the room temperature, and the low temperature room is switched to freezing, refrigerating, vegetable room or the like. Therefore, it is possible to cope with changes in the storage requirements of individual food items and improve usability.

According to the present invention described in claim 8, in addition to the invention described in claim 2, the low temperature chamber has a low temperature chamber passage for guiding cool air from the ceiling surface to the low temperature chamber. It is possible to guide the temperature evenly and quickly stabilize the temperature.

Further, according to the present invention described in claim 9, in addition to the invention described in claim 2, since the freezing room is provided with a plurality of storage cases, the food can be sorted into a plurality of storage cases. It can be tidyed up, and the amount of storage can be increased and it can be easily moved in and out.

The present invention described in claim 10 is the one according to claim 9 in which an ice storage case is provided separately, so that when the other storage case is pulled out from the freezer compartment. However, since it remains in the freezer, it is difficult to melt the ice carelessly, and it can be stored hygienically while avoiding the odor and dust of other foods.

According to the present invention described in claim 11, in addition to the invention described in claim 9, since the freezing room is provided with a cold air passage for discharging cold air for each case, each storage case can be cooled efficiently. It becomes possible and the temperature can be made uniform.

In addition to the structure described in claim 2, the invention described in claim 12 is provided with a freezer compartment passage for guiding the cold air sent from the cooler by the electric fan to the freezer compartment, and the freezer compartment passage is frozen. Since it gradually inclines toward the freezer compartment toward the room, the cool air in the freezer compartment can smoothly descend even under its own weight, and it is possible to efficiently guide the cool air and reduce the load on the electric fan. You can save electricity.

According to a thirteenth aspect of the present invention, in addition to the one according to the second aspect, the freezer compartment is provided with a freezer compartment return passage to the cooler behind the freezer compartment passage for introducing cold air to the freezer compartment. Therefore, the freezer compartment passage and the freezer compartment return passage can be manufactured compactly.

According to a fourteenth aspect of the present invention, in addition to the one according to the second aspect, a partition is provided between the freezing compartment passage for introducing cold air to the freezing compartment and the freezing compartment return passage to the cooler. Therefore, a short circuit of cold air between the freezer compartment passage and the freezer compartment return passage can be prevented even if the both passages are designed to be compact, and the inflow and outflow of the cool air can be ensured.

[Brief description of drawings]

FIG. 1 is a vertical sectional view mainly showing each room of a refrigerator main body

FIG. 2 is a block diagram showing a flow of cold air from the cooler to each room.

FIG. 3 is a perspective view of the refrigerator main body schematically shown in FIG.

[Fig. 4] The second room that becomes the same low temperature room and the third room that becomes the vegetable room etc.
Perspective view of chamber

5 is a partial exploded perspective view of FIG.

FIG. 6 is an enlarged cross-sectional view of a fourth chamber portion that becomes the same freezing chamber and the like.

FIG. 7 is a front view of a fourth chamber portion that becomes the same freezing chamber and the like.

[Explanation of symbols]

1 Refrigerator body 2 open / close door 3 refrigerating room 4 Insulation partition walls 5,8,11 Drawer door 6 low greenhouse 9 vegetable room 12 Freezer 16 Cooler 17 Partition member 18 compressor 19 electric fan 21 Freezing room passage 22 Ice storage case 23 Upper case 24 Lower case 22a, 23a, 24a Cold air passage 26,27 temperature control means 31 Freezer return passage 35 partition 36 Withdrawal means

Front Page Continuation (72) Inventor Taro Yamaguchi 4-2-5 Takada Hondori, Higashi-Osaka City, Osaka Prefecture Matsushita Refrigerator Co., Ltd. (72) Inventor Takashi Aoki 4-5-2 Takaida Hondori, Higashi-Osaka City, Osaka Prefecture No. Matsushita Refrigerator Co., Ltd. (56) Reference JP-A-9-113108 (JP, A) JP-A-8-14734 (JP, A) JP-A-9-61050 (JP, A) JP-A-5-288463 (JP, A) JP-A-9-89439 (JP, A) JP-A-9-159341 (JP, A) Actual opening Sho 62-184388 (JP, U) Actual opening Sho 60-14480 (JP, U) (JP 58) Fields investigated (Int.Cl. ⁷ , DB name) F25D 17/08 304

Claims (14)

(57) [Claims] 1. A first chamber, a second chamber, a third chamber, and a fourth chamber, which are sequentially arranged in the refrigerator body from the top and each have an opening / closing door.
A chamber, a cooler for sending cool air to the first chamber, the second chamber, and the fourth chamber to cool the chamber, an electric fan, and a compressor provided behind the fourth chamber, and the second chamber has a lower temperature than the first chamber, third chamber is higher temperatures than the first chamber, the fourth chamber is respectively set lower temperature than the second chamber, the cooler is provided in the rear of the third chamber, the other
The third chamber, which has the highest temperature than the chamber, is connected to the cooler at the rear.
The fourth chamber with the lowest temperature below and the next lowest temperature above
A refrigerator which is surrounded by the second chamber and is cooled by conduction and radiant heat from the cooler, the second chamber, and the fourth chamber. 2. A refrigerator compartment is provided at the upper part of the refrigerator body, a low temperature room is provided at the lower part thereof, a freezing room is provided at the lower part of the refrigerator body, and a vegetable room is independently provided between the low temperature room and the freezer room. Open door, low temperature room, vegetable room, freezer room have drawer doors,
A compressor is provided at the lower rear of the refrigerator body, and a cooler is provided at the rear of the vegetable compartment, and the vegetable compartment is located at the rear of the cooler and at the lower side.
Surrounding the freezing room and the low temperature room above, the cooling
By conduction and radiant heat from the container, the freezer and the cold room
Refrigerator designed to cool . 3. The refrigerator according to claim 2, wherein the low greenhouse and the vegetable compartment are separated from the cooler by a partition member. 4. The refrigerator according to claim 3, wherein the low greenhouse is partitioned from the vegetable compartment by a partition wall. 5. The refrigerator according to claim 2, wherein the refrigerating compartment and the vegetable compartment are temperature-controlled by one temperature control means. 6. The refrigerator according to claim 2, wherein the temperature of the low greenhouse is controlled by one temperature control means. 7. The refrigerator according to claim 6, wherein the temperature control means can be switched to room temperature. 8. The refrigerator according to claim 2, wherein the low greenhouse has a low temperature chamber passage that guides cool air from the ceiling surface to the low temperature chamber. 9. The refrigerator according to claim 2, wherein the freezer compartment is provided with a plurality of storage cases. 10. The refrigerator according to claim 9, wherein an ice storage case is provided separately from the storage cases. 11. The refrigerator according to claim 9, wherein the freezer compartment has a cold air passage for independently discharging cold air to each of the storage cases. 12. The freezing compartment passage for guiding the cool air sent from the cooler by the electric fan to the freezing compartment, and the freezing compartment passage is gradually inclined toward the freezing compartment toward the freezing compartment. Fridge. 13. The refrigerator according to claim 2, wherein the freezer compartment is provided with a freezer compartment return passage to the cooler behind the freezer compartment passage for introducing cold air to the freezer compartment. 14. The refrigerator according to claim 2, wherein a partition is provided between a freezer compartment passage for introducing cold air to the freezer compartment and a freezer compartment return passage to the cooler.