JP2017106670A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator including a supply air duct which secures large storage volume of a storage room and efficiently flows air cooled by a cooler.SOLUTION: A refrigerator includes: a storage room divided into at least a freezing room 3 at an upper tier and a refrigeration room 4 at a lower tier; a cooling room 30 formed behind the freezing room 3; and a supply air duct connecting the cooling room 30 with the storage room. The supply air duct has: a freezing room supply air duct 11 formed behind the freezing room 3 and in front of the cooling room 30 connected with the cooling room 30; a refrigeration room supply air duct 13 formed behind the refrigeration room 4; and a connection air duct 12 formed behind a partition wall 8 for partitioning the freezing room 3 from the refrigeration room 4 and connecting the freezing room supply air duct 11 with the refrigeration room supply air duct 13. A bending part 15 is formed at the connection air duct 12 so that a lower part of the connection air duct 12 is located at a rear side of an upper part. The structure secures large storage volume of the refrigeration room 4 and efficiently flows cooled air.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a refrigerator that cools and stores food or the like in a storage chamber, and more particularly to a refrigerator that has a supply air passage for supplying air cooled by a cooler to a storage chamber that is partitioned vertically.

  2. Description of the Related Art Conventionally, there is a so-called top freezer type refrigerator in which a freezer compartment is partitioned in an upper stage of a storage room and a refrigerator compartment is partitioned in a lower stage. In this type of refrigerator, a cooler is disposed in a cooling chamber formed behind the freezer compartment, and the air cooled by the cooler passes through a refrigerator compartment supply air passage formed behind the refrigerator compartment. The structure supplied to a refrigerator compartment is known.

  For example, the refrigerator disclosed in Patent Document 1 has a freezer compartment at the top of the refrigerator body and a refrigerator compartment at the bottom. In the refrigerator of the same document, there is a cooling chamber on the back of the freezer compartment of the refrigerator body, and a cooler that generates cold air is provided in the cooling chamber.

  And the cold air duct which supplies the cold air produced | generated with the cooler to a refrigerator compartment is provided in the back center part of the refrigerator compartment. The cold air duct extends in the vertical direction, and the upper part of the cold air duct is connected to the central portion of the cooling chamber by a connecting duct. Specifically, the connecting duct is formed substantially vertically downward from the front surface of the cooler on the back surface portion of the freezer compartment, and is connected to the upper portion of the cold air duct provided on the back surface portion of the refrigerator compartment.

  Similarly, for example, the refrigerator disclosed in Patent Document 2 also includes a storage room divided into two upper and lower parts. The upper storage room is a freezing room, and the lower storage room is a refrigerator room and a vegetable room. The cooler is provided in a cooling chamber formed at the back of the freezer compartment, and a cold air supply port connected to the refrigerator compartment and the vegetable compartment is provided in the lower part of the central portion of the cooling chamber from the front side of the cooler downward. It is formed linearly.

JP 2014-137185 A (page 6-7, FIG. 3) Japanese Patent Laying-Open No. 2013-245895 (page 5-6, FIG. 2)

  However, in the above-described conventional refrigerator, there is room for improvement in the configuration of the supply air path in order to ensure a large storage capacity of the storage chamber.

  Specifically, as in the refrigerator disclosed in Patent Document 1, in the configuration in which the connection duct is formed substantially vertically from the vicinity of the bottom surface of the freezer compartment to the lower side, the cold air duct connected to the lower part of the connection duct The upper part projects forward at the upper part of the refrigerator compartment. For this reason, there is a problem that the storage capacity of the refrigerator compartment is reduced.

  The cold air supply port disclosed in Patent Document 2 is also formed substantially linearly in the vertical direction between the freezer compartment and the refrigerator compartment. Therefore, similarly to the refrigerator of Patent Document 1 described above, the storage volume is reduced in the upper part of the refrigerator compartment.

  In general, from the viewpoint of energy saving by increasing the cooling efficiency of the refrigerator, the supply air passage through which the air supplied to the storage chamber flows is required to have a small flow loss and to allow air to flow efficiently.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to ensure a large storage capacity of the storage chamber and to efficiently flow the air cooled by the cooler. It is providing the refrigerator provided with the supply air path which can be performed.

  The refrigerator of the present invention includes a storage room partitioned into at least an upper freezing room and a lower refrigerating room, a cooling room formed behind the freezing room, and a storage room disposed in the cooling room. A cooler that cools the air supplied to the chamber, and a supply air passage that connects the cooling chamber and the storage chamber, and the supply air passage is formed behind the freezer compartment and in front of the cooling compartment. A freezer compartment supply air passage connected to the cooling compartment, a refrigerating compartment supply air passage formed behind the refrigerating compartment, and a partition wall separating the freezer compartment and the refrigerating compartment, and A freezer compartment supply air passage and a connecting air passage connecting the refrigerating room supply air passage, and the connection air passage is formed with a bent portion so that a lower portion is rearward of an upper portion of the connection air passage. It is characterized by that.

  The refrigerator of the present invention is characterized in that the bent portion is formed from the front surface to the bottom surface of the partition that defines the vicinity of the lower portion of the cooling chamber.

  In the refrigerator of the present invention, the partition that defines the vicinity of the lower portion of the cooling chamber is formed with an inclined surface that connects the front surface and the bottom surface of the partition body and is inclined downward from the front to the rear. Features.

  The refrigerator of the present invention is characterized in that the bent portion is formed along the inclined surface.

  The refrigerator according to the present invention is characterized in that the connection air passage is formed integrally with the partition.

  According to the refrigerator of the present invention, the supply air passage is formed in the rear of the freezer compartment and in front of the cooling compartment and connected to the cooling compartment, and the refrigerator compartment supply formed in the rear of the refrigerator compartment. An air passage, and a connecting air passage that is formed behind a partition wall that partitions the freezer compartment and the refrigerator compartment and that connects the freezer compartment supply air passage and the refrigerator compartment supply air passage. A bent portion is formed in the air passage so that the lower portion is behind the upper portion of the connection air passage. Thereby, the upper part of the refrigerator compartment supply air passage connected to the lower part of the connection air passage is formed behind the lower portion of the freezer compartment supply air passage, and is formed rearward, that is, closer to the rear surface of the refrigerator than the conventional refrigerator. Is done. Therefore, the upper part of the refrigerating room supply air path is suppressed from protruding into the refrigerating room, and a large storage capacity of the refrigerating room can be secured.

  Further, according to the present invention, the bent portion is formed along the bottom surface from the front surface of the partition that defines the vicinity of the lower portion of the cooling chamber. Thereby, the lower part of a connection air path can be formed more back, the upper part of a refrigerator compartment supply air path can be closely approached to the back surface of a refrigerator, and the upper part of a refrigerator compartment can be formed widely.

  According to the invention, the partition defining the vicinity of the lower portion of the cooling chamber is formed with an inclined surface that connects the front surface and the bottom surface of the partition and descends downward from the front to the rear. Thereby, the angle of the bent portion can be formed gently, and as a result, the flow loss of the air flowing through the connection air passage is suppressed, and the air can be efficiently flowed.

  Moreover, according to this invention, the said bending part is formed along the said inclined surface. Thereby, the lower part of a connection air path can be formed more back, suppressing the flow loss of the air which flows through a bending part by making the bending part of a connection air path approach a cooling room.

  Moreover, according to this invention, the said connection air path is shape | molded integrally with the said partition. Thereby, since a connection air path can be brought close to a cooling room, the lower part of a connection air path is formed in the back, and the upper part of a refrigerator compartment can be formed widely. Moreover, by integrally forming the connection air passage and the partition, the number of parts is reduced, and the refrigerator can be easily assembled.

It is side surface sectional drawing which shows schematic structure of the refrigerator which concerns on embodiment of this invention. It is a front view which shows the outline of the supply air path of the refrigerator which concerns on embodiment of this invention. It is an expanded sectional view showing the connection air passage neighborhood of the refrigerator concerning the embodiment of the present invention.

  Hereinafter, the refrigerator which concerns on embodiment of this invention is demonstrated in detail based on drawing.

  FIG. 1 is a side sectional view showing a schematic configuration of a refrigerator 1 according to an embodiment of the present invention. In addition, in FIG. 1 thru | or FIG. 3, the flow of the air in the refrigerator 1 is shown by the arrow. As shown in FIG. 1, the refrigerator 1 includes a heat insulating box 2, and a storage room for storing food and the like is formed inside the heat insulating box 2. The interior of the storage room is partitioned into an upper freezer room 3 and a lower refrigerator room 4 having different storage temperatures by a partition wall 8. In addition, the inside of the freezer compartment 3 and the refrigerator compartment 4 may be provided with storage shelves, storage containers, and the like for storing food and the like.

  The front surface of the heat insulation box 2 is opened, and the heat insulation door 5 and the heat insulation door 6 are respectively provided in the opening corresponding to each storage room so that opening and closing is possible. The heat insulating door 5 closes the opening of the freezer compartment 3 from the front, and, for example, the upper and lower ends of the right end are rotatably supported by the heat insulating box 2. Similarly, the heat insulating door 6 closes the opening of the refrigerator compartment 4 from the front, and, for example, the upper and lower ends of the right end are rotatably supported by the heat insulating box 2.

  The heat insulation box 2 which is the main body of the refrigerator 1 includes a steel plate outer box 2a whose front surface is opened, and a synthetic resin inner box 2b which is disposed with a gap in the outer box 2a and whose front surface is opened. And having. In the gap between the outer box 2a and the inner box 2b, a heat insulating material 2c made of polyurethane foam is filled and foamed. The heat insulating door 5 and the heat insulating door 6 also adopt the same heat insulating structure as the heat insulating box 2.

  The partition wall 8 that divides the freezer compartment 3 and the refrigerator compartment 4 is a molded product of synthetic resin, and the inside thereof is filled with a heat insulating material such as foamed polyurethane, or a heat insulating material made of foamed polystyrene or the like is disposed. ing. The inner box 2b may be divided into an upper freezer compartment 3 and a lower refrigerator compartment 4, and in this case, the upper and lower inner boxes 2b may form the partition wall 8.

  A freezer compartment supply air passage 11 through which air supplied to the freezer compartment 3 and the refrigerator compartment 4 flows is formed behind the freezer compartment 3, that is, on the back side. A synthetic resin partition 22 is provided between the freezer compartment supply air passage 11 and the freezer compartment 3, and the freezer compartment supply air passage 11 is partitioned by the partition 22. The partition 22 is formed with an outlet for supplying cooled air to the freezer compartment 3. In the lower part of the freezer compartment 3, there is formed a return air passage (not shown) for connecting the freezer compartment 3 and a cooling chamber 30 to be described later and returning air from the freezer compartment 3 to the cooling chamber 30.

  In addition, a cooling chamber 30 is formed behind the freezing chamber supply air passage 11, that is, further behind by a synthetic resin partition 21. An opening that connects the cooling chamber 30 and the freezer compartment supply air passage 11 is formed in the upper part of the partition 21, and for supplying the cooled air to the freezer compartment 3 and the refrigerator compartment 4. A blower 36 is provided.

  The lower portion of the cooling chamber 30 is defined by a synthetic resin dew receiving portion 23. That is, the dew receiving part 23 is a partition that forms a front surface and a bottom surface in the vicinity of the lower part of the cooling chamber 30, and the upper part of the front surface is continuous with the partition body 21. The dew receiving part 23 is connected to a drain pipe (not shown) or the like for discharging moisture generated by defrosting.

  And inside the cooling chamber 30, the cooler 31 which is an evaporator for cooling the air which circulates the inside of the refrigerator 1 is arrange | positioned. The cooler 31 is connected to a compressor 37, a radiator (not shown), an expansion valve (not shown), or a capillary tube (not shown) via a refrigerant pipe, thereby forming a vapor compression refrigeration cycle circuit. In the refrigerator 1 according to the present embodiment, R600a, that is, isobutane is used as the refrigerant of the refrigeration cycle circuit.

  A refrigeration chamber supply air passage 13 for supplying the air cooled by the cooler 31 to the refrigeration chamber 4 is formed behind the refrigeration chamber 4. The refrigerator compartment supply air passage 13 is formed by, for example, a duct member 26 made of a synthetic resin such as expanded polystyrene and the inner box 2b, and a duct cover 27 made of a synthetic resin is disposed on the front surface of the duct member 26. . The duct member 26 and the duct cover 27 are formed with air outlets for supplying the air in the refrigerator compartment supply air passage 13 to the refrigerator compartment 4.

  Behind the partition wall 8, a connection air passage 12 that connects the lower portion of the freezer compartment supply air passage 11 and the upper portion of the refrigerator compartment supply air passage 13 is formed. Details of the connection air passage 12 will be described later.

  Note that the refrigerator 1 operates the blower 36 and the compressor 37 based on a temperature sensor that detects the temperature of the freezer compartment 3 and the refrigerator compartment 4, and the temperature of the freezer compartment 3 and refrigerator compartment 4 that is detected by the temperature sensor. You may provide the control apparatus etc. which control a stop, an operation frequency, etc.

  FIG. 2 is a front view showing an outline of the supply air path of the refrigerator 1 and shows a state in which the heat insulating door 5 and the heat insulating door 6 (see FIG. 1) are removed. In addition, in FIG. 2, illustration is abbreviate | omitted about a storage shelf, a storage container, etc. FIG. As shown in FIG. 2, the freezer compartment supply air passage 11, the connection air passage 12, and the refrigerating compartment supply air passage 13 are formed at the approximate center in the left-right direction of the refrigerator 1 and extend in the up-down direction.

  A return air passage 16 connected to the cooling chamber 30 is formed outside the connection air passage 12 in the left-right direction. A return port (not shown) connected to the return air passage 16 is formed in the upper part of the refrigerator compartment 4, specifically, on the side surface of the upper part of the duct cover 27.

  Thus, the return air passage 16 is formed on the left and right of the connection air passage 12, and the connection air passage 12 and the return air passage 16 are formed so as not to overlap in the front-rear direction of the refrigerator 1. The room supply air passage 13 can be brought close to the back surface of the refrigerator 1. As a result, the refrigerator compartment 4 can be formed widely.

  Next, air circulation in the refrigerator 1 will be described in detail with reference to FIGS. 1 and 2. The air cooled by the cooler 31 inside the cooling chamber 30 is sent out to the freezer compartment supply air passage 11 by the blower 36. A part of the air sent to the freezer compartment supply air passage 11 is supplied to the freezer compartment 3 via the air outlet formed in the partition 22.

  On the other hand, a part of the air supplied to the freezer compartment supply air passage 11 flows into the refrigerating compartment supply air passage 13 via the connection air passage 12. Then, the air in the refrigerator compartment supply air path 13 is supplied to the refrigerator compartment 4 through the blower outlet formed in the duct member 26 and the duct cover 27.

  The air supplied to the freezer compartment 3 is returned to the cooling chamber 30 via a return air passage (not shown) connecting the freezer compartment 3 and the cooling chamber 30. On the other hand, the cold air supplied to the refrigerating chamber 4 is returned to the cooling chamber 30 through the return air passage 16 from a return port formed in the duct cover 27 at the top of the refrigerating chamber 4. The air returned to the cooling chamber 30 is cooled again by the cooler 31 and then sent out to each storage chamber by the blower 36. As described above, the air cooled by the cooler 31 is supplied to the freezer compartment 3 and the refrigerator compartment 4, and the food stored therein is cooled.

  Next, with reference to FIG. 3, the structure of the above-described connection air passage 12 will be described in detail. FIG. 3 is an enlarged cross-sectional view showing the vicinity of the connection air passage 12 of the refrigerator 1. As shown in FIG. 3, the upper portion of the connection air passage 12 is formed in front of the cooling chamber 30 and is connected to the lower portion of the freezer compartment supply air passage 11. The lower part of the connection air passage 12 is formed below the cooling chamber 30 and is connected to the refrigerating chamber supply air passage 13.

  Specifically, the connecting air passage 12 has a bent portion 15 that bends from the front to the rear of the refrigerator 1 from the upper part to the lower part, that is, in the air flow direction, at the back of the partition wall 8, that is, rearward. The bent portion 15 is formed below the bottom surface of the freezer compartment 3 and above the top surface of the refrigerator compartment 4. By forming the bent portion 15, the connecting air passage 12 is formed such that the lower portion is behind the upper portion.

  Thereby, the upper part of the refrigerator compartment supply air path 13 connected with the lower part of the connection air path 12 is formed in the back rather than the lower part of the freezer compartment supply air path 11, and compared with the refrigerator of a prior art, ie, the refrigerator 1. Formed close to the back. Therefore, the upper part of the refrigerator compartment supply air path 13 is suppressed from protruding into the refrigerator compartment 4, and a large storage capacity of the refrigerator compartment 4 can be secured.

  Further, the bent portion 15 is formed from the front surface to the bottom surface of the dew receiving portion 23 as a partition that defines the vicinity of the lower portion of the cooling chamber 30. In other words, the connection air path 12 and the cooling chamber 30 are defined by the dew receiving part 23 as a partition.

  Thus, the connection air path 12 and the cooling chamber 30 are defined by the dew receiving part 23 as a partition body, whereby the connection air path 12 can be brought close to the cooling chamber 30. As a result, the lower part of the connection air path 12 and the upper part of the refrigerating room supply air path 13 connected thereto can be brought close to the back surface of the refrigerator 1 so that the upper part of the refrigerating room 4 can be formed wider.

  The dew receiving part 23 as a partition is formed with an inclined surface 24 that connects the front surface and the bottom surface of the cooling chamber 30 and inclines downward from the front to the rear. By forming the inclined surface 24 in this way, the bending angle of the bending portion 15 formed along the dew receiving portion 23 becomes small. That is, the change in the air flow path in the connection air path 12 becomes gradual. Thereby, the flow loss of the air which flows through the connection wind path 12 is suppressed, and air can be flowed efficiently.

  Further, the connecting air passage 12 may be formed integrally with the dew receiving portion 23 that defines the lower portion of the cooling chamber 30. In detail, the connection air path 12, the return air path 16 (refer FIG. 2), and the dew receiving part 23 may be integrally molded. Thereby, the number of parts is reduced and the assembly of the refrigerator 1 becomes easy.

  In addition, this invention is not limited to the said embodiment, In addition, a various change implementation is possible in the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Heat insulation box 2a Outer box 2b Inner box 2c Heat insulation material 3 Freezer room 4 Refrigeration room 5, 6 Heat insulation door 8 Partition wall 11 Freezer room supply air path 12 Connection air path 13 Refrigeration room supply air path 15 Curved part 16 Return Air path 21, 22 Partition 23 Dew receiving part 24 Inclined surface 26 Duct member 27 Duct cover 30 Cooling chamber 31 Cooler 36 Blower 37 Compressor

Claims (5)

A storage compartment partitioned into at least an upper freezer compartment and a lower refrigerator compartment;
A cooling chamber formed behind the freezing chamber;
A cooler that is disposed inside the cooling chamber and cools the air supplied to the storage chamber;
A supply air path connecting the cooling chamber and the storage chamber,
The supply air passage is a freezer compartment supply air passage formed behind the freezer compartment and in front of the cooling compartment and connected to the cooling compartment, a refrigerating compartment supply air passage formed behind the refrigerating compartment, A connection air passage formed behind the partition wall that partitions the freezer compartment and the refrigerating compartment and connecting the freezer compartment air passage and the refrigerating compartment supply air passage;
The refrigerator is characterized in that a bent portion is formed in the connection air passage so that a lower portion is rearward of an upper portion of the connection air passage.   The refrigerator according to claim 1, wherein the bent portion is formed along a bottom surface from a front surface of a partition that defines a vicinity of a lower portion of the cooling chamber.   The partition body that defines the vicinity of the lower portion of the cooling chamber has an inclined surface that connects the front surface and the bottom surface of the partition body and is inclined downward from the front to the rear. Item 3. The refrigerator according to Item 2.   The refrigerator according to claim 3, wherein the bent portion is formed along the inclined surface.   The refrigerator according to any one of claims 2 to 4, wherein the connection air passage is formed integrally with the partition body.

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