JP2008304076A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of preventing drying of stored objects and easily storing various stored objects at optimum temperatures. <P>SOLUTION: This refrigerator 1 provided with a plurality of storage containers 54a-54d receiving the stored objects and arranged in parallel with each other in the longitudinal direction of a storage compartment 12, comprises a discharge port 16a for discharging the cold air from a back upper part of the storage compartment 12, a return port 19a for allowing the cold air to flow out from a back lower part of the storage compartment 12, a rail portion 82 disposed on one of side walls of the storage container 54a in a projecting state and extending back and forth, a guide groove 81 formed on a side wall 93 of the storage compartment 12 and fitted to the rail portion 82 to slide and guide the storage container 54a back and forth, and a guide portion 80 disposed at a lower part of the discharge port 16a for guiding the cold air from the discharge port 16a onto the rail portion 82. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a refrigerator, and more particularly, to a refrigerator having a storage container in a storage chamber.

  A conventional refrigerator is disclosed in Patent Document 1. In this refrigerator, a refrigerator compartment, a vegetable compartment, and a freezer compartment are arranged in order from the top of the refrigerator body. The front of the refrigerator compartment can be opened and closed by a pivoting door, and the vegetable compartment and the freezer compartment can be pulled out together with the storage container by a sliding door.

  A cooler that generates cool air is disposed behind the freezer compartment. The cold air generated by the cooler is sent to the freezer compartment or the refrigerator compartment through the distribution chamber. In the freezer compartment, the temperature of the cold air is maintained at, for example, −20 ° C. in order to store the stored product in a frozen state. The refrigerator compartment is kept at 3 ° C., for example, by repeatedly sending and stopping cold air in order to store stored items in a refrigerator.

  The temperature of the cold air rises due to heat exchange with the stored items in the refrigerator compartment, and then the cold air flows into the vegetable compartment. The storage container in the vegetable compartment is provided with a lid. The cold air flowing from the refrigerator compartment to the front of the vegetable compartment passes through the upper surface of the lid, flows down along the back surface of the storage container, and returns to the cooler. The stored items in the vegetable compartment are indirectly cooled by the cold heat transmitted through the storage container and the lid. As a result, it is possible to maintain the freshness by preventing drying of vegetables and the like without bringing cold cold air into direct contact with the stored items.

Japanese Patent No. 2698567 (page 3 to page 13, FIG. 4)

  However, according to the conventional refrigerator, since the inside of the storage container is indirectly cooled by the cold air flowing through the upper and rear surfaces of the storage container, there is a problem that the temperature distribution inside the storage container becomes non-uniform. In addition, since a lid is provided to prevent drying in the storage container, there is a problem that the number of parts increases.

  An object of this invention is to provide the refrigerator which can reduce the number of parts and can make uniform temperature distribution inside a storage container.

  In order to achieve the above object, the present invention provides a refrigerator in which a plurality of storage containers for storing stored items are juxtaposed in a vertical direction of a storage room, a discharge port for discharging cold air from the rear upper part of the storage room, and the storage A return port through which cool air flows out from the rear lower part of the chamber, a rail portion extending in the front and rear direction projecting on one of the side wall of the storage chamber and the side wall of the storage container, and provided on the other side and fitted to the rail portion A guide groove that slides the storage container back and forth and a guide portion that is disposed below the discharge port and guides cool air from the discharge port onto the rail portion are provided.

  According to this configuration, the cold air flowing into the storage chamber is discharged into the storage chamber from the upper discharge outlet, and flows down between the back wall of the storage chamber and the back surface of the storage container. For example, a rail portion extending in the front-rear direction is provided on the side wall of the storage container, and a guide groove is provided on the side wall of the storage chamber. The storage container slides back and forth by sliding between the rail portion and the guide groove. A part of the cold air flowing behind the storage container is guided above the rail portion by the guide portion. The cold air guided above the rail part flows forward along the rail part exposed between the side wall of the storage container and the tip of the guide part, flows down the front part of the storage chamber, and then flows out from the return port. . Thereby, the inside of the storage container is indirectly cooled by the cold heat of the cold air passing through the back surface, the side surface, and the front surface.

  Further, the present invention is characterized in that in the refrigerator configured as described above, the guide part has a receiving part that protrudes at a corner of the back wall and the side wall of the storage chamber at substantially the same height as the rail part. According to this configuration, a part of the cold air flowing behind the storage container flows along, for example, a receiving portion projecting in an L shape at the corner and is guided above the rail portion.

  Further, the present invention is the refrigerator having the above-described configuration, wherein the guide portion protrudes from the rear surface of the storage chamber so as to face the discharge port and is inclined in a mountain shape toward the left and right rail portions. It has the part. According to this configuration, the cold air flowing behind the storage container circulates left and right along the first and second inclined surfaces formed in a mountain shape, and a part of the cold air is guided above the rail portion.

  Further, the present invention provides the refrigerator having the above-described configuration, wherein another storage chamber is provided on the side of the storage chamber via a side partition wall, and the apex of the first and second inclined portions is located on the side of the discharge port from the center. It is characterized by being arranged biased toward the partition wall side. According to this structure, there is little cool air guided to the side storage chamber side, and more cool air is guided to the outer wall side.

  According to the present invention, in the refrigerator having the above configuration, another storage chamber is provided above the storage chamber via an upper partition wall, and the discharge port is formed through the upper partition wall. It is characterized by spreading left and right as you go to. According to this configuration, the cool air spreads left and right from the upper storage chamber through the discharge port, and flows into the lower storage chamber.

  Further, the present invention is characterized in that, in the refrigerator configured as described above, the front end of the rail portion is provided behind the front end of the guide groove. According to this configuration, a part of the cool air flowing along the rail part falls from the front end of the rail part.

  In the refrigerator configured as described above, the upper wall and the lower wall of the guide groove protrude from either the side wall of the storage chamber or the side wall of the storage container and extend forward and backward. According to this configuration, for example, the upper wall and the lower wall of the guide groove are formed in a rib shape protruding from the side wall of the storage chamber, and a wide gap is ensured between the side wall of the storage chamber and the side wall of the storage container. The cool air guided above the rail portion flows forward along the upper surface of the rib-shaped portion that forms the upper wall of the guide groove and the upper surface of the rail portion.

  In the refrigerator configured as described above, the rail portion may include a plurality of protrusions arranged in front and back via a gap, and the upper wall of the guide groove may have a notch penetrating vertically. Yes. According to this configuration, a part of the cool air flowing on the rail part falls through the gap. Further, a part of the cold air flowing along the upper surface of the rib-like portion forming the upper wall of the guide groove falls through the notch and the gap of the rail portion.

  In the refrigerator having the above-described configuration, the front end of the upper wall is provided behind the front end of the lower wall. According to this configuration, a part of the cold air flowing along the upper surface of the rib-shaped portion that forms the upper wall of the guide groove falls on the rail portion from the front end of the upper wall, and the gap of the rail portion, the front end of the rail portion, etc. It is led downward through.

  Further, the present invention is characterized in that in the refrigerator configured as described above, the rail portion is composed of a plurality of projections arranged side by side through a gap. According to this configuration, a part of the cool air flowing on the rail part falls through the gap.

  Moreover, the present invention is characterized in that, in the refrigerator configured as described above, the storage room is a vegetable room.

  According to the present invention, since the cool air discharge port is provided in the upper rear portion of the storage chamber in which the plurality of storage containers are arranged in the vertical direction and the return port is provided in the lower rear portion, the cold air flows through the back surface of the storage container. The inside of the storage container can be indirectly cooled. Moreover, since the guide part which guides the cold air from a discharge outlet on a rail part was provided, cold air can distribute | circulate ahead on a rail part and can cool a storage container indirectly from both sides and a front.

  Therefore, it is possible to prevent the stored product from drying without providing a lid on the storage container as in the conventional example, and the number of parts can be reduced. In addition, the temperature distribution inside the storage container can be made uniform, and the cooling efficiency can be improved. By improving the cooling efficiency, the temperature difference between the inside and the outside of the storage container is reduced, so that condensation can be prevented and the drying of food can be further suppressed. In addition, since a cold air duct is not required behind the storage room, a large volume of the storage room can be secured and the volume efficiency of the refrigerator can be improved.

  Further, according to the present invention, the guide portion has a receiving portion protruding at the same height as the rail portion at the corner between the back wall and the side wall of the storage chamber, so that it can be easily circulated along the receiving portion of the cold air. Can be guided on rails.

  Further, according to the present invention, since the guide portion has the first and second inclined portions that are angled to face the discharge port, the cold air can be easily circulated along the first and second inclined surfaces and easily guided onto the rail. it can.

  Further, according to the present invention, since the apexes of the first and second inclined portions are arranged to be deviated toward the side partition wall that separates the side storage chamber from the center of the discharge port, a lot of cold air is introduced to the outer wall side. The storage chamber can be uniformly cooled in the left-right direction.

  Further, according to the present invention, the discharge port is formed through the upper partition wall that partitions the upper storage chamber, and spreads to the left and right as it goes downward, so that cold air flowing from the discharge port to the storage chamber diffuses to the left and right. Therefore, the cool air can be easily guided onto the left and right rail portions.

  Further, according to the present invention, since the front end of the rail portion is provided behind the front end of the guide groove, a part of the cool air flowing forward on the rail portion along the side surface of the storage container is lowered at the front end of the rail portion. The amount of cold air reaching the door of the storage room is reduced. Therefore, it is possible to prevent dew condensation occurring on the outer surface of the door or the outer surface of the packing provided on the peripheral portion of the door.

  According to the present invention, the upper wall and the lower wall of the guide groove protrude from either the side wall of the storage chamber or the side wall of the storage container and extend in the front-rear direction, so that there is a gap between the side wall of the storage chamber and the side wall of the storage container. Widely secured. Accordingly, it is possible to reduce the flow resistance between the side wall of the storage chamber and the side wall of the storage container, and to easily distribute the cold air along the side surface of the storage container.

  Further, according to the present invention, the rail portion is composed of a plurality of protrusions arranged in parallel at the front and back via the gap, so that a part of the cool air flowing on the rail portion falls through the gap. Therefore, the cool air can be easily guided downward. Thereby, the amount of cool air reaching the door of the storage chamber is reduced, and dew condensation occurring on the outer surface of the door or the outer surface of the packing provided on the peripheral portion of the door can be prevented. In addition, since the rib-like upper wall of the guide groove has a notch penetrating vertically, the cool air can be easily lowered through the notch and the gap in the rail portion. Therefore, the amount of cold air reaching the door of the storage room can be reliably reduced.

  Further, according to the present invention, since the front end of the upper wall is provided behind the front end of the lower wall, a part of the cold air flowing forward on the upper surface of the upper wall along the side surface of the storage container falls at the front end and is stored. The amount of cold air reaching the door of the room is reduced. Therefore, it is possible to prevent dew condensation occurring on the outer surface of the door or the outer surface of the packing provided on the peripheral portion of the door.

  Further, according to the present invention, since the storage room is composed of the vegetable room, drying can be suppressed and stored in the storage container at a temperature suitable for each vegetable.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing the refrigerator of the first embodiment. In the refrigerator 1, an inner box 2b is arranged inside an outer box 2a that covers the outer surface, and a heat insulating material 2c such as foamed urethane is filled between the outer box 2a and the inner box 2b. The outer box 2a includes a cabinet portion 2d in which a side surface portion and an upper surface portion are integrated, and a back plate 2e on the back side (see FIG. 2).

  A refrigerator compartment 11 is arranged in the upper part of the refrigerator 1. A vegetable compartment 12 and a freezer compartment 13 are arranged side by side in the lower part separated from the refrigerator compartment 11 by a partition wall 16 (upper partition wall) made of a heat insulating material. The vegetable compartment 12 and the freezer compartment 13 are separated by a partition wall 19 (side partition wall) made of a heat insulating material. The freezer compartment 13 is further divided into an upper part and a lower part by a partition frame 18 made of a heat insulating material.

  A heater wire (not shown) is built in the partition wall 19. In the vegetable room 12, a temperature sensor (not shown) for detecting the room temperature is provided. Since cold heat is released from the freezer compartment 13 to the vegetable compartment 12 adjacent to the freezer compartment 13, the inside of the vegetable compartment 12 is exposed when the temperature in the vegetable compartment 12 is locally lowered.

  For this reason, if the temperature sensor detects that the surroundings of the partition wall 19 where the temperature is likely to be the lowest becomes a predetermined temperature, the heater wire is energized to prevent dew condensation in the vegetable compartment 12. The density of the heater wires in the partition wall 19 may be varied in the vertical direction. Thereby, the temperature difference provided in the up-down direction in the vegetable compartment 12 can be formed more easily as will be described later.

  An ice greenhouse 14, which is an isolation chamber partitioned by a partition plate 46, is provided in the lower part of the refrigerator compartment 11. The ice greenhouse 14 is provided on the right side in the refrigerator compartment 11 and is disposed immediately above the freezer compartment 13. An ice making unit 67 for making ice is provided in the upper part of the freezer compartment 13. A tank 63 for storing water to be supplied to the ice making unit 67 is detachably disposed on the side of the ice greenhouse 14. A pump (not shown) for supplying water in the tank 63 to the ice making unit 67 is installed behind the tank 63.

  The partition wall 16 has a discharge port 16a formed of a through hole. Cold air in the refrigerator compartment 11 is discharged into the vegetable compartment 12 through the discharge port 16a. The discharge port 16a is formed so that the lower part extends left and right rather than the upper part. First and second inclined portions 91, 92 formed in a mountain shape so as to face the discharge port 16 a are projected from the back wall 93 (see FIG. 5) at the top of the vegetable compartment 12.

  The first and second inclined portions 91 and 92 are arranged such that the apexes are biased toward the freezer compartment 13 with respect to the center of the discharge port 16 a, and the first inclined portion 91 is longer than the second inclined portion 92. Thereby, much cool air can be guide | induced to the outer wall side of the refrigerator 1, and the inside of the vegetable compartment 12 can be cooled uniformly in the left-right direction.

  FIG. 2 shows a cross-sectional view taken along the line AA of FIG. The front surfaces of the vegetable compartment 12 and the freezer compartment 13 can be opened and closed by heat-insulating doors 6 and 7 that grip and rotate the grips 6a and 7a. Packing 6b, 7b is provided in the end surface of the heat insulation doors 6, 7, and the vegetable compartment 12 and the freezer compartment 13 can be sealed by closing the gap. Similarly, the front surface of the refrigerator compartment 11 can be opened and closed by a double door heat insulating doors 3 and 4 (see FIGS. 3 and 5).

  FIG. 3 shows a right side cross-sectional view of the refrigerator 1. A plurality of placement shelves 45 on which stored items are placed are provided in the refrigerator compartment 1. The heat insulating door 6 is provided with a plurality of door pockets 44. Moreover, the same door pocket 44 is provided also in the heat insulation door 7 (refer FIG. 5).

  The upper part of the freezer compartment 13 can be opened and closed by a sliding heat insulating door 5. A handle (not shown) provided at the upper end of the heat insulating door 5 is gripped so that the storage container 55 integrated with the heat insulating door 5 can be pulled out. The lower part of the freezer compartment 13 can be opened and closed by a rotating heat insulating door 6. The handle (not shown) provided at the upper end of the heat insulation door 6 is grasped to open the heat insulation door 6 so that the storage containers 56a, 56b, 56c can be pulled out.

  The storage containers 56a, 56b, and 56c have different depths, and stacking of stored items is avoided by storing them according to the size of the stored items. As a result, it is possible to store a large stored item, and it is possible to obtain a good usability by eliminating the trouble of taking out the stacked lower stored item.

  Behind the lower part of the freezer compartment 13, the compressor 20 is arranged via the heat insulation wall 20a integrated with the back plate 2e. The compressor 20 is connected to a cooler 21 disposed in the cold air passage 23 and operates a refrigeration cycle.

  FIG. 4 shows a circuit diagram of the refrigeration cycle. A condenser 71 is connected to one end of the compressor 20, and a cooler 21 is connected to the other end. The condenser 71 and the cooler 21 are connected via a capillary tube 72.

  When the compressor 20 is driven, the refrigerant flows in the direction of the arrow A1. The compressed refrigerant is condensed by releasing heat in the condenser 71. The condensed and liquefied refrigerant is depressurized by the capillary tube 72 and then deprived of heat by the cooler 21 when vaporized and returned to the compressor 20. Thereby, air is cooled by the cooler 21 and cool air is sent out by the blower 22. Reference numeral 73 denotes a condenser blower that cools the condenser 71.

  In FIG. 3, a glass tube type defrost heater 62 for performing defrosting is provided below the cooler 21. A drain receiving member 64 for receiving defrost water is provided below the defrost heater 62. An evaporating dish (not shown) is disposed below the drain receiving member 64, and drain water is guided to the evaporating dish by a drain hose (not shown) connected to the outflow hole 64a of the drain receiving member 64. .

  The cooler 21 is disposed in a cold air passage 23 provided behind the freezer compartment 13. The cold air passage 23 is formed by an inner cover 2b on the back side and an evaporation cover 33 made of a resin molded product on the front side. The EVA cover 33 is provided with a space 33e through which cool air passes. The front side of the space 33e is covered with a back plate 33a that forms the back of the freezer compartment 13. A blower 22 is disposed above the cooler 21 in the cool air passage 23. The cold air passage 23 communicates with the freezer compartment 13 through discharge ports 13a to 13d and a return port 33b provided in the back plate 33a.

  In addition, the space 33e between the evaporation cover 33 and the back plate 33a is partitioned by a protruding wall 33d protruding from the evaporation cover 33. As a result, the discharge ports 13a to 13d and the return port 33b are separated, and the cool air in the freezer compartment 13 returns to the cool air passage 23 via the opening 33c communicating with the return port 33b. Moreover, the partition wall 19 (refer FIG. 1) is provided with the return port 19a, and the cold air circulated through the vegetable compartment 12 returns to the cool air passage 23 through the return port 19a, as will be described later.

  A blower chamber 24 that communicates with the cool air passage 23 is provided above the partition wall 16. The blower chamber 24 is opened and closed with a damper 25 to communicate with the cold air passage 23, and a blower 26 is provided in the blower chamber 24. A cold air passage 29 is provided above the blower chamber 24 and communicates therewith. When the damper 25 is opened and the blower 26 is driven, the cold air is circulated through the cold air passage 29, and the cold air is sent to the refrigerator compartment 11 and the vegetable compartment 12.

  The back surface of the cool air passage 29 is formed by the inner box 2 b, and the front surface is formed by the cooling plate 42. The cooling plate 42 is formed by subjecting a metal plate such as aluminum or stainless steel to sheet metal processing, and a heat insulating material 42b is attached to the back side.

  As shown in FIG. 1, the cool air passage 29 has an ascending passage 29a disposed in the center and a descending passage 29b disposed on both sides. A plurality of discharge ports 42 a are provided in the peripheral portion of the descending passage 29 b so that cold air is discharged into the refrigerator compartment 11.

  Moreover, the cold heat by the cold air passing through the cold air passage 29 is released into the refrigerator compartment 11 through the cooling plate 42, and the inside of the refrigerator compartment 11 is uniformly cooled. The release of cold heat to the refrigerator compartment 11 by the cooling plate 42 may be partially adjusted. For example, a gap can be provided between the cooling plate 42 and the heat insulating material 42b, and a small amount of cool air can be flown through the gap to adjust the amount of cool air released. Further, the amount of cool air discharged can be adjusted by changing the thickness of the heat insulating material 42b.

  A ceiling cold air passage 57 that communicates with the cold air passage 29 via the communication port 29 c is provided in the ceiling portion of the refrigerator compartment 11. The ceiling cool air passage 57 is formed by an upper plate 43 made of a resin molded product and the inner box 2b. The upper surface plate 43 is provided with a discharge port 43a, and a heat insulating material 43b (see FIG. 3) is attached to the upper surface side. An illuminating lamp (not shown) covered with a transparent illumination cover 52 is provided in the center of the ceiling of the refrigerator compartment 11 so as to illuminate the interior of the refrigerator compartment 11.

  Further, a branch passage 60 branched from the cold air passage 29 and connected to the ice greenhouse 14 is formed. The branch passage 60 discharges cold air from the discharge port 60 a to the ice greenhouse 14. A communication passage 49 having an opening 49a is provided in the lower part of the refrigerator compartment 11. The communication path 49 is connected to the discharge port 16 a penetrating the partition wall 16 and communicates with the vegetable compartment 12.

  FIG. 5 shows a left side sectional view of the refrigerator 1. The communication path 49 is formed by attaching a cover 50 made of a resin molded product to the inner box 2b. The cold air circulated in the refrigerator compartment 11 passes through the communication passage 49 and is discharged into the vegetable compartment 12 through the discharge port 16 a provided in the partition wall 16.

  The front of the vegetable compartment 12 can be opened and closed by a rotating heat insulating door 7. The heat insulation door 7 is opened by grasping a grip portion (not shown) provided at the upper end of the heat insulation door 7, and the storage containers 54a, 54b, 54c, 54d can be drawn out. The storage containers 54a, 54b, 54c, and 54d have different depths, and stacking of stored items is avoided by storing them according to the size of the stored items.

  As a result, large vegetables such as watermelon, heavy vegetables, and the like can be easily stored downward, and there is no need to take out the stacked items stored below, which is convenient. Moreover, damage to vegetables etc. by stacking can be prevented.

  Furthermore, since the vegetable compartment 12 is vertically long, a storage portion 58 that can store vertically long vegetables (for example, long leek, burdock, leek, celery, etc.) is provided on the back of the heat insulating door 7. The storage unit 58 can store vertically long vegetables in a posture that grows naturally. Moreover, as will be described later, only a part of the cold air flowing into the vegetable compartment 12 circulates on the front side. For this reason, there is little amount of cold air which contacts vegetables directly, and drying of vegetables can be controlled. Accordingly, it is possible to store the vertically long vegetables in a fresh state for a long period of time.

  The storage portion 58 is provided with a support portion 58a that moves up and down and supports the back side of the stored item. Thereby, the optimal position of the stored goods from which length differs can be supported and a fall can be prevented now.

  FIG. 6 is a perspective view showing the storage container 54 a of the vegetable compartment 12. The storage container 54a is made of a resin molded product, and rail parts 82 extending in the front-rear direction are provided on both side walls. The rail portion 82 is formed by a plurality of protrusions 82a that are arranged side by side through a gap 82b. The storage containers 54b to 54d are formed in the same manner as the storage container 54a.

  FIG. 7 is a perspective view showing a main part in the vegetable compartment 12. Guide grooves 81 that fit into the rail portions 82 are formed on both side walls 94 of the vegetable compartment 12 so as to extend back and forth. The upper and lower walls of the guide groove 81 are formed by rib-like members 81a and 81b that protrude from the side wall 94 of the vegetable compartment 12 and extend forward and backward. The guide groove 81 is provided corresponding to each of the storage containers 54a to 54d.

  In addition, an L-shaped receiving portion 80 projects from the upper rib-shaped member 81 a along the corners of the side wall 94 and the back wall 93 of the vegetable compartment 12.

  FIG. 8 is a front sectional view showing a fitting state between the rail portion 82 and the guide groove 81. The rail portion 82 is fitted in the guide groove 81, and the storage containers 54 a to 54 d can be slid back and forth by the sliding guide of the guide groove 81. A predetermined amount of gap 82c is formed between the rib-like members 81a and 81b and the side surface of the storage container 54a.

  In the refrigerator 1 having the above configuration, the cooler 21 is cooled by driving the compressor 20. When the blower 22 is driven, the air in the freezer compartment 13 flows into the cold air passage 23 from the return port 33b through the opening 33c. The air flowing through the cold air passage 23 is cooled by exchanging heat with the cooler 21 and discharged into the freezer compartment 13 through the discharge ports 16a, 13b, 13c, and 13d. Thereby, the inside of the freezer compartment 13 is cooled, for example to -20 degreeC.

  When the damper 25 is opened and the blower 26 is driven, a part of the cool air in the cool air passage 23 is sent to the cool air passage 29 and the ceiling cool air passage 57. And cold air is discharged in the refrigerator compartment 11 from the discharge ports 42a and 43a. Further, since the cooling plate 42 is made of metal, part of the cold heat of the cold air flowing through the cold air passage 29 is released as cold heat into the refrigerator compartment 11 through the cooling plate 42.

  Therefore, the inside of the refrigerator compartment 11 is efficiently and uniformly cooled to, for example, 3 ° C. by the cold heat discharged from the cooling plate 42 and the cold air discharged from the discharge ports 42a and 43a. The cooling plate 42 may be any material having a high thermal conductivity, and a ceramic material, a resin material impregnated with a metal filler, or the like may be used.

  Further, a part of the low temperature cold air that has passed through the cold air passage 23 is immediately discharged through the branch passage 60 to the ice greenhouse 14 from the discharge port 60a. Thereby, the temperature in the ice greenhouse 14 can be maintained at, for example, -1 ° C.

  The cold air discharged into the refrigerator compartment 11 passes through the front surface of the mounting shelf 45 and is discharged into the vegetable compartment 12 from the discharge port 16a through the communication passage 49 together with the cold air in the ice greenhouse 14. The cold air discharged from the discharge ports 42a and 43a into the refrigerator compartment 11 is deprived of cold by the food or the like until it flows into the vegetable compartment 12. Thereby, the temperature of the cold air circulating in the refrigerator compartment 11 rises, and the heated cold air flows into the vegetable compartment 12.

  The cold air passing through the discharge port 16a spreads to the left and right and is discharged into the vegetable compartment 12. The cold air discharged into the vegetable compartment 12 flows downward between the back wall 93 and the back surface of the storage container 54a while being further diffused in the left-right direction by the first and second inclined portions 91, 92 facing the discharge port 16a. . A part of the cool air flowing downward is guided forward by the receiving portion 80 and guided to the upper side of the rib-like member 81 a that forms the upper wall of the rail portion 82 and the guide groove 81. That is, the 1st, 2nd inclination parts 91 and 92 and the receiving part 80 comprise the guide part which guides cool air on the rail part 82 and the rib-shaped member 81a. Thereby, the cold air is guided forward along the side surface of the storage container 54a by the guide of the rail portion 82 and the rib-like member 81a.

  The cold air flowing along the side surface of the storage container 54a flows down the front part of the vegetable compartment 12. Thereby, the inside of the storage container 54a is indirectly cooled through the back surface, both side surfaces, and the front lower portion of the storage container 54a. At this time, since the cold air flows downward from the discharge port 16a, the cold air hardly circulates on the upper surface of the storage container 54a. For this reason, cold air does not directly contact the stored item in the storage container 54a, and drying of the stored item can be suppressed.

  Further, a part of the cool air flowing forward through the gap 82 c above the rail portion 82 falls through the gap 82 b of the rail portion 82. As a result, the lower portion of the storage container 54a is cooled from the side surface, and the cool air is lowered along the side surface of the lower storage container 54b.

  Similarly, the cold air flowing below the receiving portion 80 behind the storage container 54a flows between the back wall 93 and the back surface of the storage container 54b. Part of the cool air is guided forward by the receiving portion 80 at the rear of the storage container 54b, and merges with the cool air descending through the gap 82b of the rail portion 82 of the storage container 54a.

  Then, the cool air flows forward along the side surface of the storage container 54b and flows down the front portion of the storage container 54b. Further, a part of the cold air descends through the gap 82b of the rail portion 82. As a result, the lower portion of the storage container 54b is cooled from the side surface, and the cool air is lowered along the side surface of the lower storage container 54c. Therefore, the storage container 54b is indirectly cooled from the back surface, the side surface, and the front surface.

  Similarly, the cold air flowing below the receiving portion 80 behind the storage container 54b flows down between the back wall 93 and the back surface of the storage container 54c. A part of the cold air is guided forward by the receiving portion 80 at the rear of the storage container 54c, and merges with the cool air descending through the gap 82b of the rail portion 82 of the storage container 54b.

  Then, the cool air flows forward along the side surface of the storage container 54c and flows down the front portion of the storage container 54c. Further, a part of the cold air descends through the gap 82b of the rail portion 82. As a result, the lower portion of the storage container 54c is cooled from the side surface, and the cool air is lowered along the side surface of the lower storage container 54d. Accordingly, the storage container 54c is indirectly cooled from the back surface, the side surface, and the front surface.

  The cold air flowing downward from the receiving portion 80 behind the storage container 54c flows out from the return port 19a. The cool air flowing down the front portions of the storage containers 54a to 54d flows rearward along the rail portion 82 and the bottom surface of the storage container 54d and flows out from the return port 19a. Thereby, the storage container 54d is indirectly cooled from the side surface, the front surface, and the bottom surface.

  According to the present embodiment, since the cool air discharge port 16a is provided in the upper rear portion of the vegetable compartment 12 in which the plurality of storage containers 54a to 54d are arranged in the vertical direction and the return port 19a is provided in the lower rear portion, the cold air is stored. The insides of the storage containers 54a to 54c can be indirectly cooled through the back surfaces of the containers 54a to 54c. Moreover, since the guide part (the 1st, 2nd inclination parts 91 and 92 and the receiving part 80) which guides the cold air from the discharge outlet 16a on the rail part 82 was provided, cold air distribute | circulates on the rail part 82 ahead. The storage containers 54a to 54c can be indirectly cooled from the side surfaces and the front surface.

  Therefore, it is possible to prevent the stored product from drying without providing a lid on the storage container as in the conventional example, and the number of parts can be reduced. Further, the temperature distribution inside the storage containers 54a to 54c can be made uniform, and the cooling efficiency can be improved. By improving the cooling efficiency, the temperature difference between the inside and the outside of the storage containers 54a to 54c is reduced, so that condensation can be prevented and the drying of food can be further suppressed. In addition, since a cold air duct is not required behind the vegetable compartment 12, a large volume of the vegetable compartment 12 can be secured and the volume efficiency of the refrigerator 1 can be improved.

  The receiving portion 80 is formed continuously with the rib-shaped member 81a that forms the upper wall of the guide groove 81, but may be formed separately from the rib-shaped member 81a. In other words, the receiving portion 80 may be protruded at the corner between the back wall 93 and the side wall 94 of the vegetable chamber 2 at substantially the same height as the rail portion 82. Thereby, the cool air can be easily guided onto the rail portion 82 by the receiving portion 80.

  Further, since the upper wall and the lower wall of the guide groove 81 project from the side walls of the storage containers 54a to 54d, a wide gap is ensured between the side wall 94 of the vegetable compartment 12 and the side walls of the storage containers 54a to 54d. Therefore, it is possible to reduce the flow resistance between the side wall 94 of the vegetable compartment 12 and the side walls of the storage containers 54a to 54d, and to easily distribute the cold air along the side surfaces of the storage containers 54a to 54d.

  In addition, you may form the rail part 82 continuously from the front part of the vegetable compartment 12 to the rear part, without providing the space | gap 82b. However, as in the present embodiment, it is more desirable that the rail portion 82 is formed by a plurality of protrusions 82a that are arranged side by side through the gap 82b. That is, a part of the cold air flowing on the rail portion 82 can be lowered via the gap 82b, and the cold air can be reliably circulated along the side surface of the lower storage container. Therefore, the amount of cold air reaching the heat insulating door 7 of the vegetable compartment 12 is reduced, and condensation occurring on the outer surface of the heat insulating door 7 or the outer surface of a packing (not shown) provided on the peripheral portion of the heat insulating door 7 can be prevented. .

  Next, a second embodiment will be described. The present embodiment differs from the first embodiment shown in FIGS. 1 to 8 in the configuration of the guide groove 81. Other parts are the same as those in the first embodiment.

  FIG. 9 is a perspective view showing the guide groove 81 of the present embodiment, and shows the B portion of FIG. In the present embodiment, the front end 81c of the rib-like member 81a that forms the upper wall of the guide groove 81 is provided behind the front end 81d of the rib-like member 81b that forms the lower wall. That is, the front end 81c of the rib-like member 81a is disposed behind the front end 81d of the rib-like member 81b by about 1/3 of the length of the rib-like member 81b.

  Since the front end 81d of the lower wall of the guide groove 81 is disposed to the front of the front end 81c of the upper wall, the rails 82 can be reliably supported and the storage containers 54a to 54d can be slid. Further, a part of the cool air flowing forward through the upper surface of the rib-shaped member 81a descends from the front end 81c and flows down along the lower portions of the storage containers 54a to 54c through the gap 82b of the rail portion 82. Thereby, the amount of cool air reaching the heat insulating door 7 of the vegetable compartment 12 is reduced. Therefore, dew condensation occurring on the outer surface of the heat insulating door 7 or the outer surface of a packing (not shown) provided on the peripheral portion of the heat insulating door 7 can be prevented.

  The same effect can be obtained even if the front end of the rail portion 82 is provided behind the front end of the guide groove 81. That is, a part of the cool air flowing forward through the gap 82c (see FIG. 8) above the rail portion 82 descends from the front end of the rail portion 82 and flows down along the lower portions of the storage containers 54a to 54c.

  Thereby, the amount of cool air reaching the heat insulating door 7 of the vegetable compartment 12 is reduced as described above. Therefore, dew condensation occurring on the outer surface of the heat insulating door 7 or the outer surface of a packing (not shown) provided on the peripheral portion of the heat insulating door 7 can be prevented. At this time, the front end 81c of the upper wall of the guide groove 81 may be arranged behind the front end 81d of the lower wall.

  Next, a third embodiment will be described. The present embodiment differs from the first embodiment shown in FIGS. 1 to 8 in the configuration of the guide groove 81. Other parts are the same as those in the first embodiment.

  FIG. 10 is a perspective view showing the guide groove 81 of the present embodiment, and shows the B portion of FIG. In the present embodiment, the rib-like member 81a that forms the upper wall of the guide groove 81 has a notch 81e penetrating vertically. A part of the cold air flowing along the upper surface of the rib-like member 81a flows down along the lower portions of the storage containers 54a to 54c through the notch 81e and the gap 82b of the rail portion 82. Therefore, the amount of cold air reaching the heat insulating door 7 of the vegetable compartment 12 is reduced, and condensation occurring on the outer surface of the heat insulating door 7 or the outer surface of a packing (not shown) provided on the peripheral portion of the heat insulating door 7 can be prevented. . In addition, it is possible to increase the amount of the storage containers 54a to 54d with respect to the second embodiment.

  Next, a fourth embodiment will be described. The present embodiment differs from the first embodiment shown in FIGS. 1 to 8 in the configuration of the guide groove 81. Other parts are the same as those in the first embodiment.

  FIG. 11 is a perspective view showing the guide groove 81 of the present embodiment, and shows the B portion of FIG. In this embodiment, a guide groove 81 extending in the front-rear direction is recessed in the side wall 94 of the vegetable compartment 12. The receiving portion 80 (see FIG. 7) protrudes at the corner between the side wall 94 and the back wall 93 of the vegetable compartment 12 at substantially the same height as the guide groove 81. According to this structure, since the clearance gap between the storage containers 54a-54c and the side wall 94 of the vegetable compartment 12 becomes small compared with 1st Embodiment, distribution resistance becomes large, but it guides cold air forward by the rail part 82. be able to. Therefore, the same effect as the first embodiment can be obtained.

  In 1st-4th embodiment, although the guide groove 81 is provided in the side wall 94 of the vegetable compartment 12, and the rail part 82 protrudes from the side wall of the storage containers 54a-54d, the guide groove 81 is stored in the storage containers 54a-54d. The rail portion 82 may be provided on the side wall 94 of the vegetable compartment 12 by being provided on the side wall. Further, a rotatable roller may be disposed in the guide groove 81 or the rail portion 82.

  According to this invention, it can utilize for the refrigerator which has a some storage container in a storage chamber.

The front view which shows the refrigerator of 1st Embodiment of this invention. Top surface sectional drawing which shows the refrigerator of 1st Embodiment of this invention. Sectional drawing on the right side showing the refrigerator according to the first embodiment of the present invention. The circuit diagram which shows the refrigerating cycle of the refrigerator of 1st Embodiment of this invention. Left side sectional view showing the refrigerator according to the first embodiment of the present invention. The perspective view which shows the storage container of the vegetable compartment of the refrigerator of 1st Embodiment of this invention. The perspective view which shows the principal part of the vegetable compartment of the refrigerator of 1st Embodiment of this invention. Front sectional drawing which shows the fitting state of the guide groove and rail part of the vegetable compartment of the refrigerator of 1st Embodiment of this invention. The perspective view which shows the guide groove of the vegetable compartment of the refrigerator of 2nd Embodiment of this invention. The perspective view which shows the guide groove of the vegetable compartment of the refrigerator of 3rd Embodiment of this invention. The perspective view which shows the guide groove of the vegetable compartment of the refrigerator of 4th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 2a Outer box 2b Inner box 2c Heat insulating material 3, 4, 5, 6, 7 Heat insulation door 11 Refrigeration room 12 Vegetable room 13 Freezing room 14 Ice greenhouse 16, 19 Partition wall 16a Discharge port 19a Return port 20 Compressor 21 Cooling Ventilator 22, 26 Blower 23, 29 Cooling air passage 25 Damper 33 Eva cover 33a Back plate 42 Cooling plate 49 Communication passage 54a-54d, 55, 56a-56c Storage container 57 Ceiling cold air passage 58 Storage part 62 Defrost heater 63 Tank 64 Drain receptacle Member 67 Ice making part 80 Receiving part 81 Guide groove 81a, 81b Rib-shaped member 81e Notch 82 Rail part 82a Protruding part 82b Air gap 91 First inclined part 92 Second inclined part 93 Back wall 94 Side wall

Claims (11)

  In a refrigerator in which a plurality of storage containers for storing stored items are juxtaposed in the vertical direction of the storage chamber, a discharge port for discharging cool air from the upper rear portion of the storage chamber, and a return port from which cool air flows out from the lower rear portion of the storage chamber And a rail portion extending in the front-rear direction protruding from one of the side wall of the storage chamber and the side wall of the storage container, and a guide groove provided on the other side and fitted to the rail portion to slide the storage container back and forth And a guide part that is arranged below the discharge port and guides the cold air from the discharge port onto the rail part.   2. The refrigerator according to claim 1, wherein the guide part has a receiving part that protrudes at a corner of the back wall and the side wall of the storage room at substantially the same height as the rail part.   The said guide part has the 1st, 2nd inclination part which protruded in the back surface of the said storage chamber, and opposed to the said discharge outlet, and inclined in the mountain shape toward the said rail part on either side, It is characterized by the above-mentioned. The refrigerator according to claim 1 or claim 2.   Another storage chamber is provided on the side of the storage chamber via a side partition wall, and the apexes of the first and second inclined portions are arranged so as to be biased toward the side partition wall from the center of the discharge port. The refrigerator according to claim 3.   Another storage chamber is provided above the storage chamber via an upper partition wall, and the discharge port is formed through the upper partition wall, and the discharge port spreads left and right as it goes downward. The refrigerator according to any one of claims 1 to 4.   The refrigerator according to any one of claims 1 to 5, wherein a front end of the rail portion is provided behind a front end of the guide groove.   The refrigerator according to any one of claims 1 to 6, wherein the upper wall and the lower wall of the guide groove project from either the side wall of the storage chamber or the side wall of the storage container and extend in the front-rear direction.   The refrigerator according to claim 7, wherein the rail portion includes a plurality of protrusions arranged front and rear through a gap, and the upper wall of the guide groove has a notch penetrating vertically.   The refrigerator according to claim 7 or 8, wherein a front end of the upper wall is provided behind a front end of the lower wall.   The refrigerator according to any one of claims 1 to 7, wherein the rail portion includes a plurality of protrusions arranged front and rear through a gap.   The refrigerator according to claim 1, wherein the storage room is a vegetable room.

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