WO2018179468A1

WO2018179468A1 - Refrigerator

Info

Publication number: WO2018179468A1
Application number: PCT/JP2017/024608
Authority: WO
Inventors: 円香宇都宮; 藤岡　弘誉; 圭佑西田; 和明弘松
Original assignee: シャープ株式会社
Priority date: 2017-03-30
Filing date: 2017-07-05
Publication date: 2018-10-04
Also published as: JPWO2018179468A1; CN110462316A; TWI645147B; TW201837404A; CN110462316B; JP6783380B2

Abstract

This refrigerator is provided with: a cold storage compartment 5; a low-temperature compartment 50; a containing case 51; a discharge opening 14 open to the rear wall of the low-temperature compartment 50 and discharging cold air; a return opening 15 which is open to the rear wall of the low-temperature compartment 50 and through which cold air flows out of the low-temperature compartment 50; a duct 16 provided recessed in the bottom wall of the low-temperature compartment 50 and providing communication between the discharge opening 14 and the return opening 15; and a partition wall 52 which extends in a front-rear direction, rises from the bottom surface of the duct 16, and separates the discharge opening 14 and the return opening 15 from each other in a left-right direction.

Description

refrigerator

The present invention relates to a refrigerator provided with a low temperature chamber in a refrigerated chamber.

A conventional refrigerator in which a low temperature room is provided in a refrigerated room is disclosed in Patent Document 1. In this refrigerator, a cold room is arranged through an isolation wall at the bottom of a cold room for storing stored items in a refrigerator. A storage case is arranged in the low-temperature room, and the upper surface of the storage case is covered with an isolation wall. The isolation wall is formed by filling a heat insulating material, and a cold air passage extending forward and backward is provided inside the low temperature chamber.

A discharge port for discharging cool air is provided on the lower surface of the isolation wall. A return port through which cool air in the low temperature room flows out is provided at the back of the low greenhouse.

In the refrigerator configured as described above, the cold air flowing through the cold air passage is discharged into the low temperature chamber through the discharge port. The cool air discharged to the low greenhouse flows out through the return port on the back. Thereby, the low temperature chamber is cooled. At this time, since the cool air passage in the isolation wall extends back and forth and the discharge port is formed on the lower surface of the isolation wall, the low temperature chamber can be uniformly cooled. Moreover, since the isolation wall is formed of a heat insulating material, condensation on the upper surface of the isolation wall can be prevented.

Japanese Patent Laying-Open No. 2015-117922 (pages 5 to 10 and FIG. 7)

However, according to the above conventional refrigerator, there is a problem in that the volumetric efficiency of the refrigerator is reduced and the manufacturing cost is increased because the isolation wall is formed of a heat insulating material in order to prevent condensation due to the cold air passage extending forward and backward.

An object of the present invention is to provide a refrigerator capable of improving volumetric efficiency and reducing manufacturing costs.

To achieve the above object, the present invention provides a refrigerator compartment for storing stored items in a refrigerator, a cryogenic chamber provided at the bottom of the refrigerator compartment via an isolation wall and maintained at a lower temperature than above the isolation wall; A storage case disposed in the low-temperature chamber, a discharge port that opens on the back wall of the low-temperature chamber and discharges cold air, and opens on the back wall of the low-temperature chamber and cool air flows out of the low-temperature chamber. A first return port, a duct portion that is recessed on the bottom wall of the low temperature chamber and communicates the discharge port and the first return port, and extends in the front-rear direction and is erected on the bottom surface of the duct portion And a partition wall that partitions the discharge port and the first return port left and right.

Further, according to the present invention, the partition wall is disposed at a rear portion of the duct portion and is disposed in front of or in contact with the storage case. The partition wall is disposed in front of the first partition portion than the first partition portion. It has a low 2nd partition part, It is characterized by the above-mentioned.

According to the present invention, in the refrigerator having the above-described configuration, the storage unit disposed in front of the low temperature chamber and recessed in the bottom wall of the refrigerating chamber, the upper surface of the storage unit being closed, and sliding backward to store the storage unit. A lid portion that opens a portion, the second partition portion is formed by a step with respect to the first partition portion, and the lid portion that is slid rearward is disposed between the second partition portion and the storage case. It is characterized by being.

Further, the present invention is characterized in that the duct portion is provided over the entire width of the refrigerator compartment.

Further, the present invention provides a freezer compartment for storing stored items in a frozen state and a vegetable room for storing stored items in a refrigerator at a higher temperature than the refrigerator compartment side by side on the left and right of the refrigerator compartment. It is characterized by being arranged above the vegetable room avoiding the upper part of the room.

Further, the present invention is characterized in that a second return port for allowing cold air to flow out is provided on the back wall of the refrigerator compartment above the isolation wall.

Further, according to the present invention, in the refrigerator configured as described above, the partition wall extends on the back wall of the cold room.

Further, according to the present invention, in the refrigerator having the above-described configuration, a shielding rib is provided on the back surface of the storage case to partition the discharge port and the first return port to the left and right.

Further, the present invention is characterized in that in the refrigerator configured as described above, a groove portion into which the partition wall is fitted is provided on the outer surface of the storage case.

According to the present invention, the duct portion is recessed on the bottom wall of the low temperature chamber, and the partition wall extending in the front-rear direction and partitioning the discharge port and the first return port left and right is erected on the bottom surface of the duct portion. . Thereby, the cool air flows in the front-rear direction below the storage case, and the inside of the storage case can be uniformly cooled. Moreover, since it is not necessary to form the isolation wall above a storage case with a heat insulating material, the volume efficiency of a refrigerator can be improved and manufacturing cost can be reduced.

The front view which shows the refrigerator of 1st Embodiment of this invention. Front sectional drawing which shows the chilled chamber of the refrigerator of 1st Embodiment of this invention. Side surface sectional drawing which shows the chilled chamber of the refrigerator of 1st Embodiment of this invention Top sectional drawing which shows the chilled chamber of the refrigerator of 1st Embodiment of this invention. Side surface sectional view which shows the chilled chamber of the refrigerator of 2nd Embodiment of this invention Side surface sectional view which shows the chilled chamber of the refrigerator of 3rd Embodiment of this invention Front sectional drawing which shows the chilled chamber of the refrigerator of 4th Embodiment of this invention. Top sectional drawing which shows the chilled chamber of the refrigerator of 4th Embodiment of this invention.

<First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a front view of the refrigerator 1 of the first embodiment. The refrigerator 1 includes a main body 3 formed by a heat insulating box 2. The heat insulating box 2 is formed by filling a heat insulating material 2c (see FIG. 2) such as polyurethane foam between an inner box 2b (see FIG. 2) and an outer box 2a (see FIG. 2) covering the outside of the inner box 2b. Is done.

The refrigerator compartment 5 is provided in the upper part of the main body 3. Below the refrigerator compartment 5, a freezer compartment 6 and a vegetable compartment 7 are juxtaposed side by side through a heat insulating wall 11. A heat insulating wall (not shown) extending vertically is provided between the freezer compartment 6 and the vegetable compartment 7.

A freezer compartment 8 is provided below the freezer compartment 6 and the vegetable compartment 7 via a heat insulating wall 13 extending left and right. The freezer compartment 6 and the freezer compartment 8 communicate with each other through an opening (not shown) provided in the heat insulating wall 13. A machine room (not shown) is provided behind the freezer compartment 8.

Refrigerated room 5 stores stored items refrigerated, and vegetable room 7 maintains the temperature higher than that of refrigerated room 5 to store stored items such as vegetables refrigerated. The freezer compartment 6 and the freezer compartment 8 perform freezing preservation and ice making of stored goods. A compressor (not shown) for operating the refrigeration cycle is arranged in the machine room.

The refrigerator compartment 5 is opened and closed by

double doors

5a and 5b pivoted at the left and right ends, respectively. A chilled chamber 50 (low temperature chamber) is provided at the bottom of the refrigerator compartment 5 through a horizontal isolation wall 5c and a vertical side wall 50b. The isolation wall 5c is formed of a resin molded product. The chilled chamber 50 is maintained at a lower temperature (for example, 1 ° C.) than above the isolation wall 5c.

The front of the freezer compartment 6 is opened and closed by a sliding door 6a. The front surface of the freezer compartment 8 is opened and closed by a sliding door 8a. The front of the vegetable compartment 7 is opened and closed by a sliding door 7a.

A cold air passage 22 is provided in the back of the

freezer compartments

6 and 8. The cooler 10 and the blower fan 9 are disposed in the cool air passage 22, and a discharge port (not shown) facing the freezer compartment 6 and the freezer compartment 8 and a return port (not shown) for returning cool air to the cooler 10 are opened. The cooler 10 is connected to a compressor (not shown) and generates cool air.

A cold air passage 23 communicating with the cold air passage 22 through a damper (not shown) is provided on the back of the refrigerator compartment 5. A discharge port 23 a and a discharge port 14 facing the refrigerator compartment 5 are opened in the cold air passage 23. The discharge port 23a is disposed above the isolation wall 5c, and the discharge port 14 is disposed below the isolation wall 5c facing the chilled chamber 50.

Also, a return port 15 opens on the back wall of the chilled chamber 50, and a communication path (not shown) communicating with the vegetable chamber 7 from the return port 15 is led out. A return passage connected to the cold air passage 22 is led out to the vegetable compartment 7.

2, 3, and 4 show a front sectional view, a side sectional view, and a top sectional view of the chilled chamber 50. The chilled chamber 50 is provided with a storage case 51 that can slide in the front-rear direction. The upper surface of the storage case 51 is covered with a lid 51c attached to the lower surface of the isolation wall 5c.

On the back wall of the chilled chamber 50, the discharge port 14 is opened facing the left portion of the chilled chamber 50, and the return port 15 (first return port) is opened facing the right portion of the chilled chamber 50. A return port 17 (second return port) opens on the back wall of the refrigerator compartment 5 above the isolation wall 5c. The return port 17 is arranged substantially vertically above the return port 15, and the return port 17 and the return port 15 are provided on a communication path (not shown) connecting the refrigerator compartment 5 and the vegetable compartment 7 (see FIG. 1). It is done. Thereby, the cold air in the refrigerator compartment 5 flows through the refrigerator compartment 5 and flows out through the return port 17, passes through the chilled chamber 50, and flows out through the return port 15.

The chilled chamber 50 is provided with a duct portion 16 and a partition wall 52. The duct portion 16 is recessed on the heat insulating wall 11 that forms the bottom wall of the chilled chamber 50, and allows the discharge port 14 and the return port 15 to communicate with each other. The storage case 51 slides back and forth on the side wall of the duct portion 16. The duct portion 16 is formed so that the front end of the storage case 51 is in front of the front wall of the duct portion 16 when the storage case 51 is in the storage position. Thereby, the duct part 16 whole can be covered with the bottom wall 51d of the storage case 51, it can suppress that the cold air from the discharge outlet 14 flows out into the refrigerator compartment 5, and can cool the storage case 51 efficiently. it can.

Further, the duct portion 16 is arranged above the vegetable compartment 7 while avoiding the top of the freezer compartment 6. The temperature difference between the chilled room 50 and the vegetable room 7 is smaller than the temperature difference between the chilled room 50 and the freezing room 6. For this reason, even if the heat insulation thickness of the heat insulation wall 11 is made small by the duct part 16 above the vegetable compartment 7, the heat insulation between the refrigerator compartment 5 and the vegetable compartment 7 is securable.

The partition wall 52 extends in the front-rear direction and is erected on the bottom surface of the duct portion 16 to partition the discharge port 14 and the return port 15 to the left and right. In addition, a communication portion 50 a that connects the left and right sides of the duct portion 16 is provided in front of the partition wall 52. As a result, the duct portion 16 is formed in a U-shape that is folded back by the communication portion 50 a in front of the partition wall 52. The upper surface 52 d of the partition wall 52 abuts on the lower surface of the storage case 51, and the storage case 51 slides on the partition wall 52. A gap may be provided between the upper surface 52d of the partition wall 52 and the lower surface of the storage case 51 so as to suppress the flow of cold air.

Further, the partition wall 52 has an extending portion 52 c that extends on the back wall of the chilled chamber 50. The upper end of the extended portion 52 c is disposed above the discharge port 14 and the return port 15.

A groove 51 a into which the partition wall 52 is fitted is provided on the lower surface (outer surface) of the storage case 51. A pair of shielding ribs 51 b are provided on the rear surface of the storage case 51 to partition the discharge port 14 and the return port 15 to the left and right. A groove portion into which the extended portion 52c is fitted is formed between the pair of shielding ribs 51b. The extending portion 52c may be omitted and the shielding rib 51b may be brought into contact with or close to the back wall of the chilled chamber 50.

In the refrigerator 1 having the above-described configuration, the air flowing through the cold air passage 22 and the cooler 10 exchange heat by driving the compressor and the blower fan 9 to generate cold air. The cold air generated by the cooler 10 flows through the cold air passage 22 and is discharged to the freezer compartment 6 and the freezer compartment 8 through a discharge port (not shown). The cool air discharged into the freezer compartment 6 and the freezer compartment 8 returns to the cooler 10 through a return port (not shown).

When a damper (not shown) is opened, cold air flows into the cold air passage 23, and cold air is discharged from the discharge port 14 and the discharge port 23a to the refrigerator compartment 5. Since the discharge port 14 facing the chilled chamber 50 is closer to the cooler 10 (see FIG. 1) than the discharge port 23a above the isolation wall 5c, the inside of the chilled chamber 50 is maintained at a lower temperature than above the isolation wall 5c. .

The cold air discharged from the discharge port 23 a to the refrigerator compartment 5 circulates in the downward direction after flowing to the front of the refrigerator compartment 5. A part of the cool air above the isolation wall 5 c of the refrigerator compartment 5 is guided to the return port 17.

The cold air discharged from the discharge port 14 to the chilled chamber 50 flows forward along the partition wall 52 in the duct portion 16. The cool air flowing forward in the duct portion 16 is folded in front of the partition wall 52 and flows backward, and flows out from the return port 15.

Thereby, the cold air discharged from the discharge port 14 flows forward along the storage case 51 in the duct portion 16 through the partition wall 52 and indirectly cools the storage case 51. For this reason, it can cool reliably to the front part of the storage case 51. Further, the cold air that has circulated forward in the duct portion 16 is folded back in front of the partition wall 52 and circulated rearward to indirectly cool the inside of the storage case 51. For this reason, the whole inside of the storage case 51 can be efficiently cooled.

The cold air that has flowed out of the refrigerator compartment 5 through the return port 15 and the return port 17 flows through the communication path (not shown) and flows into the vegetable room 7 to cool the vegetable room 7. The cold air that has circulated through the vegetable compartment 7 returns to the cooler 10 via a return passage (not shown).

According to the present embodiment, the duct portion 16 is recessed on the bottom wall (heat insulating wall 11) of the chilled chamber 50 (low temperature chamber) and extends in the front-rear direction to partition the discharge port 14 and the return port 15 to the left and right. A partition wall 52 is erected on the bottom surface of the duct portion 16. Thereby, the cool air flows in the front-rear direction below the storage case 51, and the inside of the storage case 51 can be uniformly cooled. Moreover, since it is not necessary to form the isolation wall 5c above the storage case 51 with the heat insulating material 2c, the volumetric efficiency of the refrigerator 1 can be improved and the manufacturing cost can be reduced.

Also, the freezer compartment 6 and the vegetable compartment 7 are arranged side by side below the refrigerator compartment 5, and the duct portion 16 is arranged above the vegetable compartment 7 while avoiding the top of the freezer compartment 6. Thereby, even if it reduces the heat insulation thickness of the heat insulation wall 11 by the duct part 16 above the vegetable compartment 7, the heat insulation between the refrigerator compartment 5 and the vegetable compartment 7 is securable.

In addition, since the partition wall 52 has the extending portion 52c extending on the back wall of the chilled chamber 50, the discharge port 14 and the return port 15 can be more reliably partitioned. For this reason, the short circuit of the cold between the storage case 51 and the back wall of the chilled chamber 50 can be prevented, and the inside of the storage case 51 can be cooled more reliably.

In addition, since a shielding rib 51b is provided on the back surface of the storage case 51 to partition the discharge port 14 and the return port 15 to the left and right, a cold short circuit between the storage case 51 and the back wall of the chilled chamber 50 is provided. It can prevent more reliably.

In addition, since the groove 51a into which the partition wall 52 is fitted is provided on the outer surface of the storage case 51, the discharge port 14 and the return port 15 can be more reliably partitioned.

Second Embodiment
Next, FIG. 5 has shown side surface sectional drawing of the chilled chamber 50 of the refrigerator 1 of 2nd Embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals. This embodiment is different from the first embodiment in that the shape of the partition wall 52 and the return port 17 are omitted. Other parts are the same as those in the first embodiment.

The partition wall 52 erected on the bottom surface of the duct part 16 has a partition part 52a and a partition part 52b. The partition part 52 a (first partition part) is arranged at the rear part of the duct part 16, and the upper surface of the partition part 52 a contacts the lower surface of the storage case 51. The partition part 52 a may be provided close to the lower surface of the storage case 51. The partition part 52b (second partition part) is disposed in front of the partition part 52a, and the upper surface 52d is formed by an inclined surface with the front lowered, and is lower than the partition part 52a. Moreover, the front wall of the duct part 16 is low, so that cold air from the refrigerator compartment 5 can flow into the duct part 16. Instead of lowering the front wall of the duct part 16, the storage case 51 may be moved upward to provide a gap between the front end of the storage case 51 and the front wall of the duct part 16.

As a result, the cold air that has flowed from the refrigerator compartment 5 that has descended from above the isolation wall 5c flows into the duct portion 16 and flows out from the return port 15. Therefore, the return ports of the refrigerator chamber 5 and the chilled chamber 50 are combined into one. Can be summarized. On the other hand, cool air having a relatively high temperature after flowing into the refrigerator compartment 5 flows into the duct portion 16. In particular, since the flow direction of the cold air in the duct portion 16 is likely to flow into the passage on the side that circulates backward than the passage on the side that circulates forward, the passage on the side that circulates rearward may have a higher temperature. . However, in this embodiment, a part of the cool air discharged from the discharge port 14 and flowing forward is folded back in front of the partition part 52b, and the other part is folded back above the partition part 52b. For this reason, the temperature rise of the cold air | gas which distribute | circulates the inside of the duct part 16 back is suppressed by the low temperature cold air which passes the upper part of the partition part 52b. Thereby, the temperature variation of the right and left in the storage case 51 is suppressed, and the inside of the storage case 51 can be cooled more uniformly.

According to this embodiment, the same effects as those of the first embodiment can be obtained. Moreover, the partition part 52a (1st partition part) distribute | arranged to the rear part of the duct part 16, and the partition part 52b (2nd partition part) which is distribute | arranged ahead of the partition part 52a and is lower than the partition part 52a. Therefore, the inside of the storage case 51 can be cooled more uniformly.

<Third Embodiment>
Next, FIG. 6 shows a top view of the vicinity of the storage case 51 of the third embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those of the second embodiment shown in FIG. This embodiment is different from the second embodiment in that the shape of the partition wall 52 and the storage portion 25 are provided in front of the duct portion 16. Other parts are the same as those of the second embodiment.

The partition wall 52 erected on the bottom surface of the duct part 16 is formed by arranging a partition part 52b in front of the partition part 52a. The partition part 52b is formed by the level | step difference with respect to the partition part 52a, and is lower than the partition part 52a.

A storage unit 25 for storing a short stored item is arranged in front of the chilled chamber 50. The storage portion 25 is recessed in the heat insulating wall 11 that forms the bottom wall of the refrigerator compartment 5. On the upper surface of the storage portion 25, a lid portion 26 that can slide back and forth is provided. The lid portion 26 is disposed so as to close the upper surface of the storage portion 25 and slide it backward to open the storage portion 25. At this time, since the partition part 52 b is formed by a step with respect to the partition part 52 a, the lid part 26 slid rearward is disposed between the partition part 52 b and the storage case 51. Thereby, interference with the cover part 26 and the partition wall 52 can be prevented.

According to the present embodiment, similarly to the second embodiment, since the partition portion 52b lower than the partition portion 52a is provided in front of the partition portion 52a, the inside of the storage case 51 can be cooled more uniformly. Further, since the storage portion 25 provided in the heat insulating wall 11 is provided in front of the chilled chamber 50, the convenience of the refrigerator 1 can be improved. At this time, since the partition portion 52b is formed by a step with respect to the partition portion 52a, interference between the lid portion 26 that opens and closes the upper surface of the storage portion 25 and the partition wall 52 can be prevented.

<Fourth embodiment>
Next, FIGS. 7 and 8 show a front sectional view and a top sectional view of the chilled chamber 50 of the fourth embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those of the second embodiment shown in FIG. In the present embodiment, the shapes of the chilled chamber 50 and the duct portion 16 are different from those of the second embodiment. Other parts are the same as those of the second embodiment.

The chilled room 50 is provided in the entire width of the refrigerator room 5. The duct portion 16 is disposed above the vegetable compartment 7 while avoiding the top of the freezer compartment 6. A gap S is formed between the bottom wall 51 d of the storage case 51 and the heat insulating wall 11 provided on the left side of the duct portion 16. The discharge port 14 is formed in the upper part of the duct part 16.

A part of the cool air discharged from the discharge port 14 and flowing forward is folded back at the front of the partition part 52b, and the other part is folded back at the top of the partition part 52b. Further, a part of the cool air that descends from above the isolation wall 5c and is guided to the return port 15 flows into the right portion of the duct portion 16 as in the second embodiment. Furthermore, in this embodiment, a part of the cool air that descends from above the isolation wall 5c and is guided to the return port 15 passes through the gap S, the left part of the duct part 16, and the partition part 52b.

The left side of the storage case 51 is cooled by heat transfer from the freezer compartment 6 and the cold air passage 23. The central part of the storage case 51 is cooled by the cold air discharged from the discharge port 14. On the other hand, since the cold air having a relatively high temperature after circulation in the refrigerator compartment 5 flows into the right side of the storage case 51, the temperature tends to increase. Therefore, in this embodiment, cool air having a relatively high temperature after flowing into the refrigerator compartment 5 is caused to flow also from the gap S between the heat insulating wall 11 provided on the left side of the duct portion 16 and the bottom wall 51d of the storage case 51. As a result, cool air having a relatively high temperature passes through the gap S and the left part of the duct part 16 and is guided from above the partition part 52 b to the return port 15, so that the left side and the center part of the storage case 51 and the storage case 51. The temperature difference from the right side can be reduced, and the inside of the storage case 51 can be cooled more uniformly.

According to this embodiment, the chilled chamber 50 is provided over the entire width of the refrigerator compartment 5. The bottom wall of the chilled chamber 50 has portions adjacent to storage chambers (freezer compartment 6, vegetable compartment 7) having different temperatures, respectively, but a cooling duct is formed on the bottom wall facing the storage compartment (vegetable compartment 7) that becomes hot. The part 16 is recessed, and a gap S through which cold air flows through the refrigerating room 5 flows in the bottom wall facing the storage room (freezing room 6) that is low in temperature. For this reason, the region of the storage case 51 that faces the storage room (vegetable room 7) that becomes high temperature is cooled by the cold air flowing through the duct portion 16, and the storage case 51 that faces the storage room (freezer room 6) that becomes low temperature. An area | region suppresses the heat transfer from the storage room (freezer compartment 6) used as the low temperature by the cold air after distribution | circulation through the refrigerator compartment 5. Thereby, the temperature variation in the right and left in the storage case 51 can be suppressed, and the inside of the storage case 51 in the chilled chamber 50 provided in the whole width of the refrigerator compartment 5 can be cooled more uniformly.

In this embodiment, similarly to the third embodiment, the partition part 52b may be formed by a step with respect to the partition part 52a.

In the first to fourth embodiments, a low temperature chamber is configured by the chilled chamber 50 at the bottom of the refrigerator compartment 5, but the low temperature chamber is formed by an ice greenhouse or the like having a temperature lower than the chilled temperature (for example, -1 ° C to -3 ° C). May be configured. In the first embodiment, the second embodiment may be applied so that the cold air from the refrigerator compartment 5 can flow into the duct portion 16 and the return port 17 may be omitted. In the second to fourth embodiments, the return port 17 may be provided.

According to the present invention, it can be used for a refrigerator having a cold room in a refrigerator.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Heat insulation box 3 Main-body part 5 Refrigeration room 5c Isolation wall 6 Freezing room 7 Vegetable room 8 Freezing room 9 Blower fan 10

Cooler

11, 13

Heat insulation wall

14, 23a Discharge port 15 Return port (1st return port)
16 Duct section 17 Return port (second return port)
22, 23 Cold air passage 25 Storage part 26 Lid part 50 Chilled chamber

50a Communication part

50b Side wall 51 Storage case

51a Groove part

51b Shielding rib 51c Cover

51d Bottom wall 52 Partition wall 52a Partition part (first partition part)
52b Partition (second partition)
52c extension part 52d upper surface S gap

Claims

A refrigerating room for refrigerated storage of stored items, a low temperature room provided at the bottom of the refrigerating room via an isolation wall and maintained at a lower temperature than above the isolation wall, and a storage case disposed in the low temperature room; A discharge port that opens onto the back wall of the cold chamber and discharges cool air; a first return port that opens onto the back wall of the cold chamber and flows out of the cold chamber; and a bottom of the cold chamber A duct portion that is recessed on the wall and allows the discharge port and the first return port to communicate with each other; and that extends in the front-rear direction and stands on the bottom surface of the duct portion; and the discharge port and the first return port, A refrigerator comprising a partition wall for partitioning the left and right sides.
A first partition portion disposed at a rear portion of the duct portion and approaching or contacting the storage case; and a second partition portion disposed in front of the first partition portion and lower than the first partition portion. The refrigerator according to claim 1.
A storage portion disposed in front of the low temperature chamber and recessed in the bottom wall of the refrigerator compartment; and a lid portion that closes an upper surface of the storage portion and slides backward to open the storage portion, The two partition parts are formed by a step with respect to the first partition part, and the lid part slid rearward is disposed between the second partition part and the storage case. The refrigerator described.
The refrigerator according to claim 2 or 3, wherein the duct portion is provided over the entire width of the refrigerator compartment.
A freezing room for storing stored items in a frozen state and a vegetable room for storing stored items at a higher temperature than the refrigerated room are arranged side by side below the refrigerated room, and the duct portion avoids the upper part of the freezing room. The refrigerator according to any one of claims 1 to 3, wherein the refrigerator is arranged above the vegetable compartment.
The refrigerator according to any one of claims 1 to 5, wherein the partition wall extends on a back wall of the cold room.
The refrigerator according to any one of claims 1 to 6, wherein a groove portion into which the partition wall is fitted is provided on an outer surface of the storage case.