JP2000130910A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize delicate preservation of an article while preventing odor from spreading to other article preserved in other than an isolation chamber by arranging a vertical two stage case movably back and forth in the isolation chamber provided at the lower section of a refrigeration chamber and setting both cases in different time bands. SOLUTION: Chill is fed from a chiller 25 to a pressure chamber 28 by means of a fan 27 of a blower 26 and then fed to a lower case 10 through a lower case chill inlet 14 located closely to the chill distribution chamber 15 of a refrigerator chill distribution passage 16a. It is also delivered to a refrigeration chamber 2 from a plurality of refrigeration chamber chill inlets 17 and the remaining chill is fed to an upper case 7 from an upper case chill inlet 13. Furthermore, a part of chill fed to the upper and lower cases 7, 10 passed between the outside of case side face and the side wall 9 of an isolation chamber 4 along with odor in the case. Since the temperature of chill is lower in the lower case 10 than in the upper case 7, the chill does not flow back upward thus preventing upward transfer of odor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having an isolation room below a refrigerator.

[0002]

2. Description of the Related Art A conventional refrigerator of this kind is disclosed in Japanese Patent No. 269
As disclosed in Japanese Patent No. 8566, a case (storage container) constituting an isolation room (storage room) is provided at the lower part of the refrigerator compartment, and also disclosed in Japanese Patent Application Laid-Open No. 2-242062. In some cases, a plurality of cases (chilled cases) are vertically arranged in one independent room (chilled room).

[0003]

In the conventional refrigerator as described above, in the refrigerator disclosed in Japanese Patent No. 2698566, the case in the isolated room provided at the lower part of the refrigerator is a single case. The internal temperature is also limited to a set value, and in the apparatus disclosed in Japanese Patent Application Laid-Open No. H2-242062, each cool air sent into a plurality of cases (chilled cases) is supplied to a temperature controller. Cold air at the same temperature to store chilled foods
There is a problem that it is not always possible to store at a proper temperature various kinds of stored materials stored in the case. In addition, when fresh foods with a strong smell, such as fish, are stored at the same time, there is also a problem that, when the case in the isolation room is a single case, the smell is transferred to another storage in the same case. Furthermore, even when a plurality of cases are provided, when fresh foods with a strong odor are stored in the upper case, the cool air passes through the outside of the case side wall and goes down to the lower case. There is also the problem of moving.

[0004]

The refrigerator according to the present invention has solved the above-mentioned problems.
An isolation chamber is provided at a lower portion of the refrigerator compartment, and the isolation chamber is provided with upper and lower movable two-stage cases, and the temperatures in the respective cases are set to different temperature zones. With this configuration, the temperature in the upper and lower cases in the upper and lower stages in the isolation room is kept at different temperature zones, and a case for storing storage items stored at a predetermined temperature and a storage item for storing items stored at a lower temperature are stored. And a case to be obtained in the isolation room, the odor of the stored material is not easily transferred to other storages other than the isolated room with a simple structure, it is difficult to dry, the freshness of fresh fish and meat is hardly reduced, and Thus, a refrigerator having a temperature zone more suitable for each storage product and capable of storing fine storage products can be obtained.

Further, the invention according to claim 2 is characterized in that, in the above case, the temperature in the lower case is lower than the temperature in the upper case. Even if the part flows from the upper side to the lower side between the outer side of the case and the side wall of the isolation chamber with the smell in the case,
When fresh food with a strong odor, such as a fish, is stored in the lower case with a low temperature, the strong odor of the fish, etc., hardly flows upward, and the strong odor of the storage in the lower case to the storage in the upper case. A refrigerator with an isolated room that is difficult to transfer is obtained.

According to a third aspect of the present invention, the isolation chamber is provided with an upper case outlet and a lower case outlet near each of the upper case and the lower case for discharging cool air into each case. The cold air immediately after leaving the cold air distribution chamber is discharged from the lower case discharge port, and the cold air flowing out of the cold air distribution chamber from the upper case discharge port passes through the cold air distribution passage provided in the refrigerator compartment. This configuration is characterized by being discharged, and by this configuration, low-temperature cold air immediately after leaving the cold air distribution chamber is discharged from the lower case discharge port into the lower case to keep the temperature in the lower case low, After exiting the cold air distribution chamber from the upper case outlet, it passed through the cold air distribution passage provided in the cold storage chamber, absorbing the heat inside the cold storage chamber and allowing the cold air, whose temperature rose slightly, to the upper case. Because the moderately discharged to the inner, lower case the temperature in the refrigerator with the isolation chamber can be kept even lower than the upper case in temperature efficiently in a simple structure is obtained.

According to a fourth aspect of the present invention, in the isolation chamber, an upper case discharge port and a lower case discharge port for discharging cool air into each case are provided near each of the upper case and the lower case. Wherein the outer bottom surface of the upper case is above the front partition, the lower case outlet is near the cold air distribution chamber, and the upper case outlet is behind the lower case outlet. With this configuration, the outside of the bottom of the upper case is above the front partition, and the upper case discharge port is behind the lower case discharge port. The rear wall of the lower case is provided behind the rear wall of the lower case, the case can be taken out of the isolation room, and the upper case with increased storage capacity of the case is in the isolation room Built warehouse can be obtained.

Further, according to a fifth aspect of the present invention, in the isolation chamber, a lower case discharge port is provided near the lower case, and the lower case discharge port is located near the cold air distribution chamber and the left and right cold air is discharged. It is characterized by having a cool air guide for diffusing the cold air, and with this configuration, the cool air is diffused in the left and right direction from the lower case cold air discharge port located near the center provided near the cold air distribution chamber. As a result, the refrigerator having an isolated room capable of efficiently and uniformly cooling the stored items in the wide lower case at a low temperature can be obtained.

Furthermore, the invention described in claim 6 is characterized in that the cold air guide is provided in a duct portion of a lower case discharge port for heat insulation of the passage, and by this configuration, the cold air guide is protruded into the isolated chamber. An isolation chamber that can uniformly send cold air into the lower case without having to provide an extra space for cooling air, and that can take up a large volume of the lower case and uniformly cool the storage material in the lower case with high volumetric efficiency. Is obtained.

[0010] In the invention described in claim 7, the outer bottom surface of the lower case is lower than the upper surface of the front partition,
A recess having a surface lower than the front upper end of the lower case is provided in a part of the upper end of the side surface of the lower case. The gap between them can be reduced and the volumetric efficiency can be improved, a large amount of storage can be stored, and cold air can easily flow out from the recess to the outside of the lower case side. As a result, a refrigerator having an isolated room capable of efficiently and efficiently cooling a stored product at a lower temperature can be obtained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a refrigerator according to the present invention will be described with reference to the drawings.

FIG. 1 is a cross-sectional view of a main part of a refrigerator body according to the present invention, as viewed from the side. FIG. 2 is a refrigerator room passage having a refrigerator air distribution passage for guiding cool air from a cool air distributor to an isolation room and a refrigerator room. FIG. 3 is a cross-sectional view of a main part taken along the line AA near the lower case discharge port shown in FIG. 2, FIG. 4 is a cross-sectional view of a main part when the upper case is drawn forward, and FIG. It is principal part sectional drawing at the time of pulling out a lower case forward.

In FIG. 1, 1 is a refrigerator main body, 2 is a refrigerator room, 3 is a vegetable room, 4 is an isolation room provided below the refrigerator room 2, and 5 is a space between the refrigerator room 2 and the vegetable room 3. It is a partition provided in. Reference numeral 6 denotes a front partition, and reference numeral 7 denotes an upper case that fits in the upper part of the isolation chamber 4. Reference numeral 8 denotes an upper case guide provided outside the side surface of the upper case 7 and is drawn by a dotted line. 9
Reference numerals a and 9b denote side wall guides provided on the isolation chamber side wall 9, respectively, sandwiching the upper case guide 8 from above and below.
9a is an upper side wall guideway, and 9b is an upper side wall guide spacer, each of which is drawn by a two-dot chain line.

The upper case guide 8, the upper side wall guideway 9a, and the upper side wall guide shifter 9b enable the upper case 7 to move in the front-rear direction and guide its movement. An upper case guide inclined surface 8a is provided in front of the lower surface of the upper case guide 8 so that when the upper case 7 is stored in the isolation chamber 4, the upper case 7 can be automatically stored by its own weight immediately before storage is completed. I have.

Reference numeral 10 denotes a lower case which is accommodated in a lower portion of the isolation chamber 4. Reference numeral 11 denotes a lower case guide provided outside the side surface of the lower case 10 and is drawn by a dotted line. Reference numerals 9c and 9d denote side wall guides provided on the isolation chamber side wall 9, respectively, which sandwich the lower case guide 11 from above and below.
c is a lower side wall guideway, and 9d is a lower side wall guide spacer, each drawn by a two-dot chain line.

The lower case guide 11, the lower side wall guideway 9c, and the lower side wall guide shifter 9d make the lower case 10 movable in the front-rear direction and guide the movement. In addition, a lower case guide inclined surface 11a is provided in front of the lower surface of the lower case guide 11 so that when the lower case 10 is stored in the isolation chamber 4, the lower case 10 can be automatically stored by its own weight immediately before the storage is completed. I have.

Reference numeral 12 denotes a case shelf serving as a ceiling of the isolation room 4, 13 denotes an upper case cold air outlet for discharging cold air into the upper case 7, and 14 denotes a lower case outlet for discharging cool air into the lower case 10. It is a cold air outlet. In this drawing, the upper case cold air outlet 13 and the lower case cold air outlet 14 are shown in the same sectional view of the upper case cold air outlet 13 and the lower case cold air outlet 14.
It is cut and drawn where it passes.

Reference numeral 15 denotes a cold air distribution chamber provided with a damper 15a. In this drawing, the damper 15a shows a state in which the entrance 15b of the distribution chamber is closed. In addition, the dotted line part of the damper 15a represents the state when the damper 15a is opened.
The reference numeral 16 designates the cool air discharged from the cool air distribution chamber 15 as the cold storage chamber 2.
And cold room distribution passage 16a for sending to cold room 4
A refrigerating room passage assembly having a heat insulating passage 16b for heat insulation and a passage cover 16c as a protective cover, and has an upper case cold air outlet 13, a lower case cold air outlet 14, and a cold room cold air outlet 17.

Reference numeral 18 denotes a refrigerator door, and the refrigerator door 1
8 has door pockets 19 and 20 at the rear of the door.
Reference numeral 21 denotes a vegetable room door, and reference numeral 22 denotes a vegetable case, which is attached to the vegetable room door 21 by a door angle (not shown). 23
Is a small case attached to the upper part of the vegetable case 22.

Reference numeral 24 denotes a vegetable compartment cover, which is located above the vegetable case 22 and the accessory case 23, and is designed to keep the vegetable case 22 and the accessory case 23 at a predetermined humidity. In addition, 25 is a cooler, 26 is a blower assembly having a fan 27, and 28 is a pressure chamber communicating with the cool air distribution chamber 15.

The cool air cooled by the cooler 25 is
The air is sent to the pressure chamber 28 by the fan 27 of the blower 26. Thereafter, cool air is sent from the pressure chamber 28 to a freezing chamber (not shown). Further, the room temperature of the refrigerator compartment 2 is sensed by a temperature sensor (not shown) provided in the refrigerator compartment 2, and when the room temperature becomes higher than a predetermined temperature, the damper 15a of the cold air distribution chamber 15 opens, and the pressure chamber is opened. The cold air that has entered the cold air distribution chamber 15 from 28 through the distribution chamber entrance 15b is sent to the refrigerator compartment cold air distribution passage 16a.

Thereafter, the cold air is supplied to the cold room distribution passage 16a.
Is sent to the lower case 10 through a lower case cold air discharge port 14 provided at a position close to the cold air distribution chamber 15, and passes through a plurality of cold room cold air discharge ports 17 while passing through a cold room cold air distribution passage 16a. The remaining cool air is discharged from the upper case cool air outlet 13 to the upper case 7.
Sent to.

The cool air sent into the upper case 7 cools the stored material in the upper case 7 and the upper front end 7a thereof and the case shelf 1
2 flows out to the refrigerator compartment 2 through a gap 7b between the refrigerator compartment 2 and the refrigerator compartment 2. afterwards,
The cool air flowing out of the gap 7b mixes with the relatively warm cool air descending from above the refrigerator compartment 2 and descends downward.

At this time, the cool air (for example, cool air temperature = 1 ° C.) sent into the upper case 7 is supplied to the cold room cold air distribution passage 16.
Since the air is discharged from the upper case cold air discharge port 13 after passing through the cooling chamber a, a part of the heat in the refrigerator chamber 2 is absorbed by the cold air while passing through the cooling chamber cold air distribution passage 16a. (Eg, 3 ° C.), but lower case 10
It is higher than the cool air immediately after being sent from the cool air distribution chamber 15, which is the cool air (for example, cool air temperature = −1 ° C.), into the refrigerator compartment cool air distribution passage 16 a.

The opening area of each of the outlets of the upper case 7 is controlled such that the amount of the cool air sent from the upper case cool air outlet 13 to the upper case 7 is kept lower than that of the refrigerator compartment 2. For example, the cool air discharge amount is adjusted.

The cool air sent into the lower case 10 cools the stored matter in the lower case 10 and flows out to the refrigerator compartment 2 through a gap 10b between the front upper end 10a and the outer bottom surface of the upper case 7. Thereafter, it mixes with relatively cool air coming down from the front of the upper case 7, passes through the space between the bottom surface of the lower case 10 and the partition 5, and is provided with a partition opening 5 a provided in a part of the partition 5. And flows into the vegetable room 3.

Since a small amount of cold air with little heat absorption from the outside immediately after flowing out of the cold air distribution chamber 15 flows into the lower case 10 through the lower case cold air discharge port 14, an appropriate amount of the cool air flows into the lower case 10.
The temperature inside the upper case 7 and the temperature inside the lower case 10 are maintained at different temperatures (for example, the temperature inside the upper case 7 = 2 ± 1 ° C. and the temperature inside the lower case 10 = 0 ± 1).
° C). Some of the cool air sent to the upper case 7 and the lower case 10 leaks from the upper end of the side of the case,
The gas flows between the outer side surface of each case and the side wall 9 of the isolation chamber from above to below together with the odor in the cases. At this time, since the temperature of the cool air of the lower case 10 is lower than that of the upper case 7, the cool air flow between the outside of the side surface of each case and the side wall 9 of the isolation chamber does not reverse to the upper side and is separated from the outside of the bottom surface of the lower case 10. It flows between the unit 5. Therefore, when fresh food such as a fish with a strong odor is stored in the lower case 10 having a lower temperature than the upper case 7, the strong odor of the fish or the like is unlikely to move backward, and the lower case 10 The smell will be difficult to transfer.

The cool air flowing into the vegetable compartment 3 passes through a cool air passage formed by the partition portion 5 and the vegetable compartment cover 24, passes between the vegetable case 22 and the back of the vegetable compartment door 21, and then enters the vegetable case 22. To the outside of the bottom. Thereafter, the cool air passes through the outside of the bottom surface of the vegetable case 22 and returns from the vegetable compartment 3 to a position below the cooler 25 by a duct (not shown). In addition, the arrow in a figure represents the flow of cool air.

Since the refrigerator compartment 2 and the vegetable compartment 3 which have little difference in the room temperature are provided vertically adjacent to each other,
The thickness of the heat-insulating layer may be thin, and the partition 5 is formed in a concave shape so that the lower case 10 enters into the concave for effective use of the room volume. Is located below the upper surface of. Further, the outer side of the bottom surface of the upper case 7 is a front partitioning portion 6 for securing the height of the lower case 10.
It is provided so as to be higher.

Due to the size of the damper 15a, the width of the cool air distribution chamber 15 cannot be so large in the left-right direction, but is large in the front-rear direction to secure a ventilation area.
Therefore, the cold air distribution passage 15 is connected to the cold air distribution passage 16
In order not to lower the ventilation efficiency, the cool air passage leading to a needs to have the same width in the front-rear direction. Further, the lower case cold air outlet 14 near the cool air distribution chamber 15 also has the same cool air passage. , You will be located where you have come forward.

The upper case cold air discharge port 13 is located in a cold room cold air distribution passage 16a remote from the cold air distribution chamber 15,
The refrigerating compartment cold air distribution passage 16a in the vicinity may have a large width in the left-right direction and may have a small width in the front-rear direction. Therefore, the position of the upper case cold air outlet 13 in the front-rear direction can be provided behind the position of the lower case cold air outlet 14.

Since the outside of the bottom surface of the upper case 7 is located above the front partition 6, the rear wall 7b of the upper case 7 is connected to the lower case 1 regardless of the removal of the upper case 7 from the isolation chamber 4.
0 rear wall 10b. For these reasons, the upper case 7 can be taken out of the isolation chamber 4 and the upper case 7 with an increased storage capacity of the case can be obtained.

The left-right direction means the left-right direction when the refrigerator is viewed from the front, and the front-rear direction means the front-back direction when the refrigerator is viewed from the front.

In FIG. 2, the cool air sent from the cool air distribution chamber 15 to below the cool room cool air distribution passage 16a (indicated by a dotted line) is divided into two right and left passages by the pressure generated by the fan 27 of the blower 26. Room cold air distribution passage 16a
It is pushed up inside. Thereafter, the cold air pushed up the two right and left passages to near the upper end of the refrigerator compartment 2 is guided to a passage which is reversed left and right, passes through the refrigerator compartment cold air distribution passage 16a, falls below the refrigerator compartment 2 and falls below the refrigerator compartment 2 and the refrigerator compartment cold air distribution passage 16a. The cold air comes down to the upper case cold air outlet 13 at the end of the above.

During this time, a part of the cool air is sent out from the lower case cool air outlet 14 to the lower case 10 and is sent out from each cool room cool air outlet 17 to the refrigerating room 2, and the remaining cool air is removed from the upper case cool air. It is sent out from the outlet 13 to the upper case 7. In addition, the arrow in a figure represents the flow of cool air.

The opening of the passage cover 16c, which corresponds to the cold-air outlet 17 of the refrigerator compartment, is formed in a slit shape so as to prevent a stored article or the like from entering the inside. Further, a temperature sensor 29 for sensing the room temperature in the refrigerator compartment 2 is provided at 16c, and a rib-like shape is provided so that cold air from the refrigerator compartment air outlet 17 above the refrigerator does not directly hit the temperature sensor 29. An eave 30 is provided. 31 is a lamp cover,
On the back side, a lamp (not shown) for illuminating the inside of the refrigerator compartment 2 is provided.

In FIG. 3, since the cool air immediately after flowing out of the cool air distribution chamber 15 flows into the lower case 10 from the lower case cool air discharge port 14, an appropriate amount of the cool air flows in the left and right widths of the cold room cool air distribution passage 16a. Cannot be so wide due to the size of the damper 15a of the cold air distribution chamber 15,
Further, the lower case cold air discharge port 14 is provided at a limited position substantially at the center in the left-right direction.

For this reason, the lower case cold air outlets 14 are provided at the left and right sides of the heat insulating passage 16b so that the cool air flows through the lower case cold air outlets 14 at the left and right sides so as to uniformly feed the cool air into the wide lower case 10. The duct 14a of the lower case cold air discharge port 14 is inclined obliquely in the left-right direction as a cold air guide so as to spread right and left during the passage.
By doing so, it is possible to send cool air uniformly into the lower case 10 with a simple structure without providing an inclined grill which projects toward the isolation chamber 4 and inclines left and right in front of the passage cover 16c and takes extra space. And the stored matter in the lower case 10 can be efficiently cooled. In addition, the arrow in a figure represents the flow of cool air.

It should be noted that if the opening of the passage of the duct portion 14a can have a sufficient opening area, it is obvious that a cool air can be guided more efficiently by providing a wind direction plate for guiding the cool air inside the duct.

In FIG. 4, a finger is placed on the upper case handle 7c located in front of the upper case 7 from below, and the upper guide lower protrusion 8b of the upper case guide 8 is moved to the upper guide lower protrusion of the upper side wall guide shutter 9b. Until 9c
Pulled forward. Usually, in this state, the storage in the upper case 7 is taken in and out.

Since the outside of the bottom surface of the upper case 7 is above the front partition 6, the upper case 7 can be taken out of the isolation chamber 4 by putting a finger on the upper case handle 7 c from below regardless of the front partition 6. This can be achieved by pulling out the upper guide lower projection 8b while pulling it upward so as to get over the upper guide shutter upper projection 9c. At this time, the upper side 7 d of the upper case 7 is partially lowered so as not to hit the case shelf 12.

In FIG. 5, a finger is placed on the lower case handle 10c located in front of the lower case 10 from above, and the lower guide lower projection 11b of the lower case guide 11 is moved downward by the lower side guide guide 9d. It is pulled forward until it hits 9e. Usually, in this state, the storage in the lower case 10 is taken in and out.

Since the bottom outer side of the lower case 10 is lower than the upper surface of the front partition 6, the lower case 10 can be taken out of the isolation chamber 4 by putting a finger on the lower case handle 10c from below and projecting the lower guide lower projection. 11b can be achieved by pulling it upward while pulling it upward so as to get over the lower guide-sita upper protrusion 9e.

At this time, the front end outside the bottom surface of the lower case 10 does not come into contact with the upper surface of the partition 5, and a part of the upper end 10 d of the side surface of the lower case 10
Is provided with a partially low concave portion 10e so as not to hit. In addition, the figure when the lower case handle portion 10c is pulled up is drawn by a dotted line.

Since the recess 10e is provided in the lower case 10, the clearance between the upper case 7 and the lower case 10 can be reduced, the storage capacity can be improved, and a large amount of storage can be stored. Therefore, the cool air can easily flow to the outside of the side surface of the lower case 10, so that the flow resistance in the vicinity thereof decreases and the cool air flow increases, so that the lower case 10 can efficiently cool the stored material to a lower temperature.

When the clearance between the upper case 7 and the lower case 10 is small, the width of the lower case 10 is so large that the stored material does not protrude to the front upper end 10a or the side upper end 10d near the poor cooling state. It is clear that the provision of the concave portion can improve the cooling condition by increasing the amount of cold airflow in the vicinity thereof, and clearly reduce the flow resistance and increase the air blowing efficiency.

[0047]

Since the refrigerator of the present invention has the above-described structure, the invention according to claim 1 has a simple structure and the odor of the stored material is not easily transferred to other stored materials other than the isolation room, and the drying is performed. It is difficult to reduce the freshness of fresh fish and meat,
A refrigerator having a temperature zone more suitable for each storage and capable of storing fine storage can be obtained.

The invention according to claim 2 is characterized in that, when fresh food having a strong odor, such as fish, is stored in the lower case having a low temperature, the storage in the upper case is strongly odorized by the storage in the lower case. A refrigerator with an isolated room that is difficult to transfer is obtained.

According to the third aspect of the present invention, there is provided a refrigerator having an isolated room in which the temperature in the lower case can be efficiently kept lower than the temperature in the upper case with a simple structure.

Further, in the invention according to claim 4, the back wall of the upper case is provided behind the back wall of the lower case irrespective of the removal of the case from the isolation chamber, and the case can be removed from the isolation chamber. Thus, a refrigerator having an upper case in an isolated room with an increased storage capacity of the case is obtained.

Further, according to the fifth aspect of the present invention, the cool air is diffused in the left-right direction and sent into the lower case from the cool air outlet of the lower case which is provided near the cool air distribution chamber and located substantially at the center. Thus, it is possible to obtain a refrigerator having an isolated room that can efficiently and efficiently cool the stored items in the wide lower case at a low temperature.

Further, according to the present invention, the cool air can be uniformly fed into the lower case without providing a cool air guide which takes extra space and protrudes into the isolated room, and the volume of the lower case is reduced. It is possible to obtain a refrigerator having an isolated room capable of uniformly cooling the storage material in the lower case which is large and has a good volumetric efficiency.

Further, according to the present invention, the clearance between the outer side of the bottom surface of the upper case and the upper end of the lower case can be reduced, the volumetric efficiency can be improved, a large amount of stored items can be stored, and the recessed portion can be removed. Refrigerator with an isolation room that can cool the stored product more efficiently and at a lower temperature because the cold air becomes easier to flow to the outside of the side of the lower case. Is obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part of a refrigerator according to an embodiment of the present invention as viewed from a side surface of a main body.

FIG. 2 is a front view of the vicinity of a refrigerating room passage assembly having a refrigerating room cold air distribution passage for guiding cold air from a cold air distributor to an isolating room and a refrigerating room, showing an embodiment of the refrigerator of the present invention.

FIG. 3 is a cross-sectional view of an essential part taken along line AA near the lower case discharge port shown in FIG. 2;

FIG. 4 is a cross-sectional view of a main part of the refrigerator according to the embodiment of the present invention when the upper case is drawn forward.

FIG. 5 is a cross-sectional view of a main part when the lower case showing the embodiment of the refrigerator of the present invention is drawn forward.

[Explanation of symbols]

 2 Refrigeration room 4 Isolation room 6 Front partition 7 Upper case 10 Lower case 10e Recess 13 Upper case outlet 14 Lower case outlet 14a Duct 15 Cold air distribution room 16a Cold room distribution passage 16b

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Taiji Oshiro 22-22, Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Inventor Zenichi Inoue 22-22, Nagaikecho, Abeno-ku, Osaka-shi, Osaka (72) Inventor Satoru Satoru Hasegawa 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka F-term (reference) 3L045 AA01 AA04 BA01 CA02 DA02 EA01 KA07 PA04

Claims (7)

[Claims] 1. An isolation chamber is provided at a lower portion of a refrigerator compartment, and two stages of upper and lower cases are provided in the isolation chamber which are movable back and forth, and the temperatures in the respective cases are different from each other. And refrigerator. 2. In the above case, the temperature in the lower case is lower than the temperature in the upper case.
The refrigerator as described. 3. The isolation chamber is provided with an upper case discharge port and a lower case discharge port for discharging cool air into each case near each of the upper case and the lower case, and a cool air distribution chamber is provided from the lower case discharge port. The cold air immediately after exiting from the outlet is discharged, and after exiting from the cold air distribution chamber through the upper case discharge port, the cool air is discharged through a cold air distribution passage provided in the refrigerator compartment. The refrigerator as described. 4. An isolation chamber is provided with an upper case discharge port and a lower case discharge port for discharging cool air into each case near each of the upper case and the lower case. 2. The refrigerator according to claim 1, wherein the lower case outlet is located near the cold air distribution chamber, and the upper case outlet is located rearward of the lower case outlet. 5. The isolation chamber is provided with a lower case discharge port near a lower case, and the lower case discharge port is near a cool air distribution chamber and has a cool air guide for diffusing cold air to the left and right. The refrigerator according to claim 1, wherein: 6. The refrigerator according to claim 5, wherein the cool air guide is provided in a duct portion of a lower case discharge port for heat insulation of the passage. 7. A lower surface of the lower case is lower than an upper surface of the front partition, and a recess having a lower surface than a front upper end of the lower case is provided at a part of an upper end of a side surface of the lower case. The refrigerator according to claim 1.