JP2014020684A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator in which a storage room is divided into upper and lower stages and the upper stage is divided into right and left parts each provided with a storage container, the refrigerator capable of efficiently cooling the storage containers, and reducing the amount of heat exchange performed between cool air in the storage room and a heat insulating cabinet wall, thereby suppressing the amount of entrance of heat from the exterior into the refrigerator.SOLUTION: A refrigerator includes: a plurality of drawer type doors disposed on the front surface of a storage room 6 and divided into two stages vertically adjacent to each other in which the upper stage is divided into right and left parts as viewed from the front; and a plurality of storage containers 9, 10, 12, and 13 disposed on the rear sides of the respective doors and housed in the storage room. Cold air injection ports 34, 35, 36, and 37 for supplying cold air into the storage containers are disposed corresponding to the plurality of storage containers. Cold air suction ports 38 and 39 for sucking cold air after cooling are located between the storage container of the door of the lower stage and the storage containers of the two doors of the upper stage, and are disposed at right and left positions as viewed from the front.

Description

  Embodiments of the present invention relate to a refrigerator.

  In a domestic refrigerator-freezer, a structure in which a drawer-type door is provided in a freezer compartment as a storage room and a storage container is provided on the back side of the door is generally used. In addition, there is a configuration in which the freezer compartment is divided into two upper and lower stages, and corresponding doors and storage containers are provided in two upper and lower stages. In this case, cold air outlets for blowing out the cold air cooled by the cooler are provided in the upper and lower stages corresponding to each storage container in the back of the freezer compartment, and the cool air for returning the cooled cold air to the cooler side. A suction port is provided in the lower part of the back of the freezer compartment.

  With such a configuration, the cold air blown from the cold air outlet is supplied into the corresponding storage container. After this, after the cold air overflows from the storage container, after passing through the gap between the outer surface of the storage container and the side surface and bottom surface of the heat-insulating cabinet constituting the freezer compartment, from the cold air inlet at the back of the freezer compartment After being sucked in and returned to the cooler side and cooled again by the cooler, it is circulated so as to be supplied to the freezer compartment.

  In this case, when the cold air overflowing from the storage container passes through the gap between the outer surface of the storage container and the side surface or bottom surface of the heat insulation cabinet, the flow rate increases, and the cold air in the storage chamber and the wall of the heat insulation cabinet Heat exchange will take place between the two. This was one of the factors that increased the amount of heat entering from the outside to the inside.

  In order to cope with such a situation, a configuration is considered in which the cold air inlet is disposed between the lower storage container and the upper storage container at the back of the freezer compartment. In this case, after the cold air supplied into the lower storage container exits from the upper surface of the front part of the storage container and flows backward between the storage container and the bottom surface of the upper storage container Then, the air is sucked from the cold air inlet. The cool air supplied to the upper storage container exits from the upper surface of the front part of the storage container and flows downward between the front surface and the door of the storage container, and then the bottom surface and the lower side of the storage container. After flowing backward between the storage containers, the cold air is sucked from the cold air inlet. By adopting such a configuration, it is possible to minimize the amount of cold air that has come out of the storage container and passing through the gap between the storage container and the heat insulation cabinet, thereby reducing the amount of cold air in the storage chamber and the wall of the heat insulation cabinet. It is possible to reduce the amount of heat exchange performed between the two, and to suppress the amount of heat entering from the outside to the inside.

JP-A-10-220950

The above-described configuration is intended for one in which one storage container is provided on each of the lower side and the upper side of the freezer compartment divided into two stages.
Therefore, the storage room is divided into two upper and lower stages, and the upper stage is divided into two on the left and right sides, each of which has a storage container, and each storage container can be cooled efficiently. Provided is a refrigerator that can reduce the amount of heat exchange between the cool air in the storage room and the wall of the heat-insulating cabinet, and can suppress the amount of heat entering from the outside to the inside of the warehouse.

  The refrigerator according to the present embodiment includes a heat-insulating cabinet having a storage chamber in which cool air cooled by a cooler is circulated, and two stages that are provided on the front surface of the storage room and are adjacent to each other up and down, and the upper stage is left and right when viewed from the front. A plurality of drawer-type doors divided into two, and a plurality of storage containers provided on the back side of each door and accommodated in the storage chamber, were accommodated in each storage container by the cold air supplied into the storage chamber It is the structure by which a store thing is cooled. A cool air outlet for supplying cool air into the storage container is provided corresponding to each of the plurality of storage containers, and the cool air suction ports for sucking in the cool air after cooling are the storage container for the lower door and the two upper containers. It is located between each storage container of the door and is provided at two places on the left and right as viewed from the front.

The front view which shows the refrigerator of 1st Embodiment Schematic vertical side view near the freezer Schematic front view of the vicinity of the freezer compartment with the door removed Schematic longitudinal side view showing the front part of the upper storage container Schematic exploded perspective view of a duct unit disposed in the back of the freezer compartment Schematic perspective view of the assembled state of the duct unit of FIG. FIG. 2 equivalent view of the second embodiment Schematic perspective view near the duct unit of the freezer compartment

Hereinafter, the refrigerator by several embodiment is demonstrated based on drawing. In addition, the same code | symbol is attached | subjected to the substantially same component about each embodiment, and description is abbreviate | omitted.
(First embodiment)
A first embodiment will be described with reference to FIGS. First, the figure which looked at the refrigerator for home use from the front is shown by FIG. In FIG. 1, a heat-insulating cabinet 1 for a refrigerator has a rectangular box shape with an open front surface. The heat insulation cabinet 1 is provided with a storage room 2 in a refrigeration temperature zone at the top and a storage room 3 in a refrigeration temperature zone at the bottom. Among these, the storage room 2 in the refrigeration temperature zone is divided into an upper refrigeration room 4 and a lower vegetable room 5. Two doors 4a and 4b of a double door type are provided on the front surface of the refrigerator compartment 4 so as to be rotatable in the left-right direction around a hinge shaft (not shown). A drawer-type door 5a is provided on the front side of the vegetable compartment 5 so as to be movable in the front-rear direction. A storage container for storing vegetables and the like is provided on the back side of the door 5a, although not shown.

  In this case, the storage chamber 3 in the lower freezing temperature zone is divided into a lower main freezing chamber 6, an upper left ice making chamber 7, and an upper right small freezing chamber 8. A drawer-type door 6a is provided on the front surface of the main freezer compartment 6 so as to be movable in the front-rear direction. On the back side of the door 6a, as shown in FIG. 2, two upper and lower storage containers 9, 10 are provided. Is provided. Of the upper and lower two-stage storage containers 9, 10, the upper storage container 9 is shallower than the lower storage container 10 and has a shorter length in the front-rear direction, and is disposed above the lower storage container 10. Has been. A notch 11 is formed in the upper part of the rear wall 10a of the lower storage container 10, and the upper end of the rear wall 10a where the notch 11 is formed is the wall around the storage container 10 It is formed lower than the upper end. The depth of the notch 11 is formed to be lower than the bottom surface of the upper storage container 9, and there is a space between the lower edge of the notch 11 and the bottom surface of the storage container 9. Is formed.

  An ice storage container 12 (see FIG. 3) is provided on the back side of the door 7a of the ice making chamber 7. A storage container 13 (see FIGS. 2 and 3) is also provided on the back side of the door 8a of the small freezer compartment 8. The ice making chamber 7 is provided with an automatic ice making device having a well-known configuration (not shown).

  Here, as shown in FIG. 2, the heat insulation cabinet 1 is basically filled with a heat insulating material 17 such as a foam heat insulating material between an outer box 15 made of steel plate and an inner box 16 made of synthetic resin. It is configured. The heat insulation cabinet 1 includes a vegetable room 5 on the lower side of the storage room 2 in the refrigerated temperature zone and an ice making room 7 and a small freezer room 8 on the upper side of the storage room 3 in the freezing temperature zone. Further, a heat insulating partition wall 18 (see FIGS. 2 and 3) having heat insulating properties is provided, and the heat insulating partition wall 18 partitions the storage room 2 in the refrigeration temperature zone and the storage chamber 3 in the refrigeration temperature zone vertically. ing. A front partition for partitioning between the upper refrigerator compartment 4 and the lower vegetable compartment 5 is provided at the front of the storage compartment 2 in the refrigerated temperature zone, and is not shown on the rear side of the front partition. There is a partition plate. In addition, the doors 4a, 4b, and 5a to 8a of the storage chambers 2 and 3 also have a heat insulating structure.

  At the front of the storage room 3 in the freezing temperature zone, there is provided a horizontal partition 20 (see FIGS. 2 and 3) that partitions the lower main freezing room 6 and the upper ice making room 7 and small freezing room 8. In addition, a vertical partition 21 (see FIG. 3) for partitioning the ice making chamber 7 and the small freezer compartment 8 left and right is provided. The horizontal partition 20 extends in the left-right direction when viewed from the front. The vertical partition 21 extends in the vertical direction. The rear of the horizontal partition 20 is a space, and the lower main freezer compartment 6 and the upper ice making compartment 7 and small freezer compartment 8 are in communication.

  A machine room 22 is provided at the bottom of the rear part of the heat insulation cabinet 1 so as to be located at the lower rear part of the main freezer compartment 6, and a compressor 22 a of a refrigeration cycle and the like are disposed in the machine room 22. . In the present embodiment, the refrigeration cooler for cooling the refrigerator compartment 2 (refrigerator compartment 4, vegetable compartment 5) in the refrigeration temperature zone and the fan for circulating the cold air are not shown, but the refrigeration temperature zone storage A refrigeration cooler 23 for cooling the freezing temperature zone storage room 3 (the main freezing room 6, the ice making room 7, and the small freezing room 8) and a cold air circulation fan 24 are provided on the back side of the room 2. (Refer to FIG. 2) is provided on the back side of the storage chamber 3 in the freezing temperature zone. In this case, the compressor 22a of the refrigeration cycle is common to the refrigeration cooler and the refrigeration cooler 23, and the refrigerant discharged from the compressor 22a is caused to flow to the refrigeration cooler side by a switching valve (not shown). By switching between the flow to the freezing cooler 23 side, the storage room 2 in the refrigeration temperature zone and the storage room 3 in the freezing temperature zone are alternately cooled.

  Next, a structure for cooling the storage chamber 3 in the freezing temperature zone will be described. The bottom wall portion 1 a of the heat insulation cabinet 1 is provided with a stepped bent portion 25 at a portion where the machine room 22 is formed. The refrigeration cooler 23 is disposed in the inner part of the storage room 3 in the freezing temperature zone so as to be positioned above the stepped portion 25 a above the bent portion 25. A cooler cover 26 is provided on the front side of the refrigeration cooler 23, and the refrigeration cooler 23 is covered from the front by the cooler cover 26. As is well known, the refrigeration cooler 23 has a configuration in which a refrigerant pipe through which a refrigerant passes is arranged in a meandering manner and a plurality of fins through which the refrigerant pipe passes are provided.

  As shown in FIG. 5, the fan 24 is disposed on the upper part of the cooler cover 26 so as to be positioned above the center in the left-right direction of the freezing cooler 23 when viewed from the front. A circular air outlet 27 is formed in the cooler cover 26 at a portion corresponding to the fan 24. The cooler cover 26 has a cold air inlet 28 formed at a position corresponding to the central portion in the left-right direction at the lower part of the freezer cooler 23. The cold air inlet 28 has a long hole shape that is long in the left-right direction when viewed from the front.

  A blower duct 30 and a suction duct 31 are provided on the front side of the cooler cover 26. The blowout duct 30 is provided so as to extend downward from a horizontally long air outlet cover portion 32 provided so as to cover the air outlet 27 from the front, and a central portion in the left-right direction below the air outlet cover portion 32. The lower duct portion 33 is integrally provided. The blower port cover 32 is provided with a horizontally long first cold air outlet 34 on the upper left side, and a horizontally long second cold air outlet 35 on the upper right part.

  As shown in FIG. 3, the first cold air outlet 34 faces the rear upper surface of the storage container 12 from above corresponding to the storage container 12 of the ice making chamber 7. The second cold air outlet 35 faces the upper surface of the rear portion of the storage container 13 from above corresponding to the storage container 13 of the small freezer compartment 8. The lower duct portion 33 is provided with a horizontally long third cold air outlet 36 at the top, and a horizontally long fourth cold air outlet 37 at the bottom. The third cold air outlet 36 and the fourth cold air outlet 37 slightly protrude forward. The third cold air outlet 36 faces the upper surface of the rear portion of the storage container 9 from above corresponding to the upper storage container 9 in the main freezer compartment 6. The fourth cold air outlet 37 faces the rear of the storage container 10 corresponding to the lower storage container 10 in the main freezer compartment 6 through the notch 11 from above.

  The suction duct 31 includes two cold air inlets 38 and 39 arranged on the left and right when viewed from the front, a junction 40 arranged at a lower portion between the two cold air inlets 38 and 39, and the junction. Connecting portions 41, 41 that connect the left and right ends of the portion 40 and the cold air inlets 38, 39 are integrally provided. The two cold air inlets 38 and 39 each have a flat rectangular tube shape and extend in the front-rear direction. The junction 40 extends in the left-right direction. The left and right connection portions 41 extend in the vertical direction, and connect the joining portion 40 and the cold air suction ports 38 and 39 in a communicating state. In this case, the front end portions of the cold air inlets 38 and 39 are located in front of the central portions in the front-rear direction of the storage containers 9, 10, 12, and 13. It is located slightly after the front end of the upper storage container 9 (see FIG. 2). The suction duct 31 is disposed at the lower part of the front surface of the cooler cover 26 so as to cover the cool air inlet 28 of the cooler cover 26 from the front at the junction 40. The junction 40 and the cold air inlet 28 are in communication.

  In a state where the suction duct 31 is disposed in the lower front portion of the cooler cover 26, the two left and right cold air inlets 38, 39 are located on the left and right sides of the upper third cold air outlet 36 in the lower duct portion 33 of the outlet duct 30. (Refer to FIG. 3 and FIG. 6). Therefore, the third cold air outlet 36 and the fourth cold air outlet 37 in the lower duct portion 33 are disposed between the two left and right cold air inlets 38 and 39. Further, the junction 40 in the suction duct 31 is arranged so as to be sandwiched from the front and rear by the front surface of the cooler cover 26 and the rear surface of the lower duct portion 33 in the blowout duct 30 (see FIGS. 2 and 6). The central portion of the merging portion 40 in the suction duct 31 is disposed so as to be sandwiched from the front and rear by the lower duct portion 33 that is a part of the blowout duct 30 and the refrigeration cooler 23. Inside the junction 40, a temperature sensor 42 (see FIG. 2) is disposed in the vicinity of the cold air inlet 28.

  Here, as shown in FIG. 3, the left cold air inlet 38 of the left and right cold air inlets 38, 39 is positioned behind the horizontal partition 20, and the storage container 12 of the ice making chamber 7 and the main refrigeration It is disposed between the upper storage container 9 in the chamber 6. The right cold air inlet 39 is also located behind the horizontal partition 20 and is disposed between the storage container 13 in the small freezer compartment 8 and the upper storage container 9 in the main freezer compartment 6. . In this case, the third cold air outlet 36 corresponding to the upper storage container 9 in the main freezer compartment 6 is wrapped in the height direction (vertical direction) with the left and right cold air inlets 38 and 39.

  As shown in FIG. 4, an opening 43 opened in the front-rear direction is provided on the upper portion of the front wall 13 a in the storage container 13 of the small freezer compartment 8. In addition, a falling wall 44 extending downward from the upper part is provided at the front part of the front wall 13a of the storage container 13. The upper end of the falling wall 44 is located above the opening 43, and the falling wall 44 is located in front of the opening 43. Between the inner surface of the falling wall 44 and the front surface of the front wall 13a, a space 45 having an open lower surface is formed. A duct 46 is formed in the front portion of the storage container 13 by the falling wall 44 and the front wall 13a. The space 45 of the duct 46 communicates with the inside of the storage container 13 through the opening 43. Although not shown, an opening 43 and a duct 46 having the same configuration as that of the storage container 13 are also provided at the front portion of the storage container 12 on the ice making chamber 7 side.

  Next, the operation of the above configuration will be described. Here, the case where the storage room 3 of a freezing temperature zone is mainly cooled is demonstrated. When the fan 24 is driven in a state where the refrigerant is supplied to the refrigeration cooler 23, the cold air cooled by the refrigeration cooler 23 is blown out from the blower port 27 to the blower port cover 32 side of the blowout duct 30. The

  A part of the cold air blown out to the blower port cover 32 side is supplied from the third cold air outlet 36 into the upper storage container 9 of the main freezer compartment 6 (see arrow A1 in FIG. 2), and the fourth It is also supplied into the lower storage container 10 from the cold air outlet 37 (see arrow A2 in FIG. 2). Among these, the cool air supplied into the upper storage container 9 cools the stored material while flowing forward in the storage container 9, and then overflows from the upper surface of the front of the storage container 9. 9 enters the suction duct 31 from the left and right cold air suction ports 38, 39 existing above 9, and flows backward (see arrow B). In addition, the cool air supplied into the lower storage container 10 cools the stored material while flowing forward in the storage container 10, and then overflows from the front upper surface of the storage container 10. It flows forward upward, merges with the cold air coming out of the storage container 9, enters the suction duct 31 from the left and right cold air intake ports 38, 39 above the storage container 9, and flows backward (arrow) B).

  In addition, a part of the cold air blown to the air outlet cover 32 side is supplied into the storage container 13 of the small freezer compartment 8 from the second cold air outlet 35 (see arrow A3 in FIGS. 2 and 6). The first cold air outlet 34 is also supplied into the storage container 12 in the ice making chamber 7 (see arrow A4 in FIG. 6). Among these, the cool air supplied into the storage container 13 of the small freezer compartment 8 cools the stored item while flowing forward in the storage container 13, and then passes through the front opening 43 of the storage container 13. (See arrows in FIGS. 2 and 4). The cold air that has entered the duct 46 flows downward along the duct 46, and then merges with the cold air that has exited from the storage containers 9, 10 of the main freezer compartment 6, so that the right side that exists mainly below the storage container 13. Enters the suction duct 31 from the cold air inlet 39 and flows backward (see arrow B). Further, the supplied cold air supplied into the storage container 12 in the ice making chamber 7 cools the stored item while flowing forward in the storage container 12, and then stores the same as in the case of the storage container 13. The container 12 exits from the front opening 43 into the front duct 46. The cold air that has entered the duct 46 flows downward along the duct 46, and then merges with the cold air that has exited from the storage containers 9, 10 of the main freezer compartment 6, and mainly remains on the left side below the storage container 12. The air enters the suction duct 31 from the cold air suction port 38 and flows backward.

  Then, the cold air that has entered the suction duct 31 from the left and right cold air inlets 38 and 39 merges from the left and right at the junction 40 and is returned from the cold air inlet 28 to the refrigeration cooler 23 side (arrow C in FIG. 2). reference). The cold air returned to the refrigeration cooler 23 side is cooled again in the process of passing through the refrigeration cooler 23, then flows to the fan 24 side, and is blown out from the blower port 27 to the blower port cover 32 side. It becomes like this. In this way, cold air circulates, and the cold air cools the storage items 9 and 10 in the main freezer compartment 6, the storage vessel 13 in the small freezer compartment 8, and the storage vessel 12 in the ice making room 7.

  In the embodiment described above, the following operational effects can be obtained. First, in the storage room 3 in the freezing temperature zone, the cold air supplied to the upper storage container 9 and the lower storage container 10 in the lower main freezing room 6 overflows from the upper surfaces of the respective front parts, and is stored in the upper storage. The air is sucked into the suction duct 31 from the cold air suction ports 38 and 39 at two positions on the left and right above the container 9. Further, the cold air supplied to the storage container 13 of the upper right small freezer compartment 8 passes through the duct 46 from the front opening 43 and mainly sucks in from the right cold air inlet 39 located below the storage container 13. The cold air sucked into the duct 31 and supplied to the storage container 12 of the ice making chamber 7 on the upper left is similarly passed from the front opening 43 through the duct 46 and mainly below the storage container 12. The air is sucked into the suction duct 31 from the cold air suction port 38 on the left side.

  For this reason, the cold air overflowing from the storage containers 9, 10, 12, 13, the outer surfaces of the respective storage containers 9, 10, 12, 13, the left and right side walls and bottom walls of the heat insulation cabinet 1, or the doors 6 a, It is possible to reduce the amount passing through the gap between 7a and 8a as much as possible. Thereby, the heat exchange amount performed between the cool air in the storage room 3 in the freezing temperature zone and the wall of the heat insulation cabinet 1 can be reduced as much as possible, and the amount of heat entering from the outside to the inside can be suppressed. I can expect. In this case, the storage room 3 in the freezing temperature zone is divided into two upper and lower stages, and the upper stage is divided into two on the left and right, and the storage chambers 9, 10, 12, and 13 are respectively provided. The storage containers 9, 10, 12, and 13 can be efficiently cooled, and the amount of heat exchange between the cool air in the storage chamber 3 and the wall of the heat insulation cabinet 1 can be reduced, and the outside of the cabinet can be reduced. It can be expected to suppress the amount of heat entering the cabinet.

  At the front part of the storage room 3 in the freezing temperature zone, a horizontal partition 20 extending in the left-right direction is provided between the lower main freezing room 6 and the upper ice making room 7 and small freezing room 8. The left and right cold air inlets 38 and 39 are disposed behind the horizontal partition 20. According to this, the back of the horizontal partition part 20 becomes a so-called dead space where stored items cannot be arranged, and the dead space can be used effectively.

  The lower main freezer compartment 6 has storage containers 9 and 10 arranged in two upper and lower stages, and a third cold air outlet 36 corresponding to the upper storage container 9 of the upper and lower two storage containers 9 and 10. Wraps in the height direction with the cold air inlets 38 and 39. Also by this, the dead space behind the horizontal partition 20 can be used more effectively.

  The refrigeration cooler 23 is disposed at the back of the storage room 3 in the refrigeration temperature zone, and the cooling air circulation fan 24 is disposed at an upper portion near the center of the refrigeration cooler 23 in the left-right direction as viewed from the front. Yes. The suction duct 31 having the two cold air inlets 38 and 39 at the left and right places the cold air sucked from the two cold air inlets 38 and 39 at the left and right at the central portion of the lower part of the refrigeration cooler 23, thereby introducing the cold air inlet. It is configured to flow from 28 to the refrigeration cooler 23 side. In this case, the cold air inlet 28 serving as the cold air inlet to the refrigeration cooler 23 has a structure in which the air flow rate of the cold air is increased at both left and right ends, but the suction fan 24 is connected to the refrigeration cooler 23. Since it is arranged at the upper part near the center in the left-right direction, a large amount of wind is sucked in from the vicinity of the center in the left-right direction of the refrigeration cooler 23. As a result, the entire refrigeration cooler 23 is almost uniformly distributed. As a result, the cooling efficiency of the cold air can be improved.

  The third and fourth cold air outlets 36 and 37 corresponding to the storage containers 9 and 10 of the lower main freezer compartment 6 are arranged between the two cold air inlets 38 and 39 on the left and right sides, and the two cold air inlets The merging portion 40 of the suction duct 31 having 38 and 39 is arranged so as to be sandwiched from the front and rear by the lower duct portion 33 which is a part of the blowout duct 30 and the refrigeration cooler 23. According to this, the cold air inlet 28 serving as the cold air inlet to the freezer cooler 23 is disposed in the central portion of the freezer cooler 23 in the left-right direction, but the storage containers 9 and 10 of the main freezer compartment 6 are arranged. Corresponding third and fourth cold air outlets 36 and 37 can be arranged in the center in the left-right direction, and the temperature distribution in each storage container 9 and 10 is greater than when the cold air outlet is divided into left and right. Can be made as uniform as possible.

  A temperature sensor 42 is provided in the junction 40 in the suction duct 31. According to this, it is possible to secure a long path from the cold air inlets 38 and 39 to the temperature sensor 42, and the temperature sensor 42 can detect the average temperature after joining, and the temperature detected by the temperature sensor 42 is used. By doing so, more appropriate temperature control of the storage room 3 in the freezing temperature zone becomes possible.

  The first and second cold air outlets 34 and 35 corresponding to the upper left and right storage containers 12 and 13 are arranged at the upper part on the back side of the corresponding storage container 12 and 13, and the first and second cold air outlets 34 and 35 are arranged. A structure in which cool air is allowed to flow from the back to the corresponding storage containers 12 and 13 from 35 to overflow from the front of the storage containers 12 and 13 and is sucked from the cold air suction ports 38 and 39 existing below the storage containers 12 and 13; Has been. And the duct 46 which guides the cold air which overflowed from the opening part 43 of the front part of the said storage container 12 and 13 to the said cold air suction inlet 38 and 39 side at the front part of each storage container 12 and 13 of the upper stage is shown. I have. According to this, it becomes possible to flow the cold air coming out from the front part of the storage containers 12 and 13 to the lower cold air inlets 38 and 39 without almost contacting the corresponding doors 7a and 8a. It can be expected to further suppress the amount of heat entering the chamber.

  In this case, the falling wall 44 that forms the duct 46 is not limited to being provided integrally with the storage containers 12 and 13, and may be configured by a member different from the storage containers 12 and 13. Further, the falling wall 44 can be provided on the back side of the corresponding doors 7a and 8a.

(Second Embodiment)
7 and 8 show a second embodiment. The second embodiment is different from the first embodiment described above in the following points. First, in the heat insulation cabinet 1, the refrigerator compartment 4 and the vegetable compartment 5 in the storage compartment 2 of the refrigeration temperature zone are divided into upper and lower parts, and the storage compartment 3 of the refrigeration compartment is arranged between the refrigerator compartment and the vegetable compartment 5. Yes. Therefore, the vegetable compartment 5 is arrange | positioned at the lowest part. The storage room 3 in the freezing temperature zone and the upper refrigeration room 4 are partitioned vertically by a heat insulating partition wall 50a, and the heat insulating partition wall 50b is also provided between the storage room 3 in the freezing temperature zone and the lower vegetable room 5. It is divided up and down by. The machine room 22 is provided in the lower rear part of the vegetable room 5. In this case, the cooler 51 is shared by the storage chamber 2 in the refrigeration temperature zone and the storage chamber 3 in the freezing temperature zone, and only one cooler 51 and one circulation fan 24 are provided.

  As shown in FIG. 7, the cooler 51 and the fan 24 are disposed behind the storage room 3 in the freezing temperature zone. A cooler cover 26 is provided on the front surface of the cooler 51, and the fan 24 is disposed above the central portion in the left-right direction of the cooler 51 in the cooler cover 26. A cooling air supply duct 52 extending upward is integrally provided in the blowout duct 30 provided on the front surface of the cooler cover 26. A part of the cold air blown from the fan 24 toward the blow duct 30 is supplied to the upper refrigerator compartment 4 through the cold air supply duct 52. The cold air supply duct 52 is provided with a damper (not shown), and the damper can switch between the case where the cold air is supplied to the refrigerator compartment 4 side and the case where the cold air is not supplied to the refrigerator compartment 4 side. It has a configuration.

  In the suction duct 31 provided on the front surface of the cooler cover 26, the connection portion 53 that connects the left and right cold air inlets 38, 39 and the merging portion 40 is longer in the vertical direction than the connection portion 41. Is set. Accordingly, in the suction duct 31, the distance in the height direction between the cold air suction ports 38 and 39 and the merging portion 40 is larger than in the case of the first embodiment.

  In the cooler cover 26, the cold air inlet 28 is disposed below the cooler 51 and below the lowermost fourth cold air outlet 37 in the outlet duct 30. And the suction duct 31 is arrange | positioned in the front surface of the cooler cover 26 in the state which covers the cold air inlet 28 from the front in the junction 40. Therefore, in this case, the merging portion 40 of the suction duct 31 is disposed below the lower duct portion 33 of the blowout duct 30. The rear surface of the lower duct portion 33 is open without a wall, and the rear surface of the lower duct portion 33 faces the front surface of the cooler cover 26.

  On the right side of the cooler cover 26, a side duct 54 extending in the vertical direction is provided as shown in FIG. The lower part of the side duct 54 is not shown in detail, but is divided into a flow path through which cold air from the refrigerator compartment 4 flows to the vegetable room 5 side and a flow path to return to the cooler 51 side. (See arrows D1, D2).

  In the above-described embodiment, the lowermost fourth cold air outlet 37 in the outlet duct 30 is located above the lowermost part of the cooler 51, and the merging portion in the suction duct 31 is below the fourth cold air outlet 37. A space for arranging 40 can be secured. In such a case, the junction 40 does not need to overlap with the lower duct 33 of the outlet duct 30 in the front-rear direction, and can be disposed below the lower duct 33. According to this, it becomes possible to suppress the forward protrusion amount of the lower duct portion 33.

(Other embodiments)
The storage container in the main freezer compartment 6 may be only one stage rather than the upper and lower stages.
As the heat insulating material in the heat insulating cabinet 1, a vacuum heat insulating panel may be used.

  As described above, the refrigerator of the present embodiment is intended for a configuration in which the storage chamber is divided into two upper and lower stages, and the upper stage is divided into two on the left and right, and the storage container is provided for each. A cool air outlet for supplying cool air into the storage container is provided corresponding to each of the plurality of storage containers, and the cool air suction port for sucking in the cool air after cooling is a storage container for the lower door and two doors for the upper door. It is located between each storage container and provided at two places on the left and right as viewed from the front. With this configuration, each storage container in the storage chamber can be efficiently cooled, and moreover, the amount of heat exchange between the cool air in the storage chamber and the wall of the heat insulation cabinet can be reduced. It can be expected to suppress the amount of heat penetration.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1 is a heat insulation cabinet, 2 is a storage room in a refrigerated temperature zone, 3 is a storage room in a refrigeration temperature zone, 4 is a refrigeration room, 5 is a vegetable room, 6 is a main freezer room, 7 is an ice making room, and 8 is small. Freezer compartments, 4a, 4b, 5a-8a are doors, 9, 10, 12, and 13 are storage containers, 20 is a horizontal partition, 21 is a vertical partition, 23 is a refrigeration cooler (cooler), and 24 is a fan , 26 is a cooler cover, 27 is an air outlet, 28 is a cold air inlet, 30 is an outlet duct, 31 is a suction duct, 33 is a lower duct portion, 34 is a first cold air outlet, 35 is a second cold air outlet, 36 is a third cold air outlet, 37 is a fourth cold air outlet, 38 and 39 are cold air inlets, 40 is a junction, 41 is a connection, 42 is a temperature sensor, 43 is an opening, 44 is a falling wall, 46 is a duct, 51 is a cooler, and 53 is a connection part.

Claims (7)

A heat-insulating cabinet having a storage chamber in which cool air cooled by a cooler is circulated, and a plurality of stages provided on the front surface of the storage chamber and adjacent to each other in the vertical direction, and the upper stage is divided into left and right when viewed from the front A stored item housed in each storage container by cold air supplied into the storage room, provided with a drawer-type door and a plurality of storage containers provided on the back side of each door and housed in the storage room In a refrigerator configured to be cooled,
Cold air outlets for supplying cold air into the storage container are provided corresponding to the plurality of storage containers, respectively, and the cold air intake ports for sucking in the cold air after cooling are the storage container of the lower door and the upper two storage containers. A refrigerator that is located between each storage container of the door and is provided at two left and right positions when viewed from the front.   The front part of the storage room is provided with a horizontal partition part that is positioned between the upper and lower doors and extends in the left-right direction, and the left and right cold air inlets are arranged behind the horizontal partition part. The refrigerator according to claim 1.   The storage container is arranged in two upper and lower stages on the back side of the lower door, and the cold air outlet corresponding to the upper storage container of the upper and lower two storage containers has the same height as the cold air inlet. The refrigerator according to claim 1 or 2, wherein the refrigerator is wrapped in a direction.   The cooler is disposed at the back of the storage chamber, and a fan for circulating cold air is disposed at an upper portion near the center in the left-right direction of the cooler as viewed from the front, and the two cool air intake ports 4. The suction duct having the structure is configured such that the cold air sucked from the two cold air suction ports merges at the lower central portion of the cooler and flows to the cooler side. The refrigerator as described in any one of.   The cold air outlet corresponding to the storage container of the lower door is disposed between the two cold air inlets on the left and right sides, and the merging portion of the suction duct having the two cold air inlets has the cold air outlet. The refrigerator according to claim 4, wherein the refrigerator is arranged so as to be sandwiched from the front and rear by a part of the blowout duct and the cooler.   The cold air outlet corresponding to the storage container of the lower door is disposed between the two cold air inlets on the left and right sides, and the merging portion of the suction duct having the two cold air inlets has the cold air outlet. The refrigerator according to claim 4, wherein the refrigerator is disposed below the blowout duct.   The cold air outlets corresponding to the respective storage containers of the upper left and right doors are arranged at the upper back side of the corresponding storage containers, and the storage is performed by flowing cold air from the rear toward the corresponding storage containers from the cold air outlets. It overflows from the front of the container and is sucked from the cold air inlet located on the lower side of the storage container. The front part of each storage container of the upper left and right doors overflows from the front part of the storage container. The refrigerator as described in any one of Claims 1-6 provided with the duct which guides the cool air to the said cold-air inlet side.

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