JP6735436B2 - refrigerator - Google Patents

Description

The present invention relates to a refrigerator having a vegetables compartment.

Generally, a household refrigerator is configured by providing a plurality of storage rooms having different temperature zones, for example, a refrigerating room, a vegetable room, a freezing room, etc. in a refrigerator body. Among refrigerators having such a plurality of storage chambers, there is one in which a vegetable compartment is arranged in the upper and lower substantially central portions of the refrigerator main body that is most easily used by the user (see, for example, Patent Document 1).

FIG. 28 shows a refrigerator described in Patent Document 1, a refrigerating room 101 is provided in an upper part of a refrigerator body 100, and a freezing room 102 is provided in a lower part, and a vegetable room 103 is provided in a substantially central portion of the refrigerator book 100 between these two rooms. It is arranged. A cooling chamber 104 is provided on the back of the freezing chamber 102 and the vegetable chamber 103 of the refrigerator main body 100, and a cooler 105 and a cooling fan 106 are arranged in the cooling chamber 104 to cool the cool air generated by the cooler 105. Is supplied to the refrigerator compartment 101, the vegetable compartment 103, and the freezer compartment 102 by the cooling fan 106 and circulated, and the food stored in each of these compartments is cooled and stored. The vegetable compartment 101 is supplied with cold air after cooling the refrigerating compartment 104 to cool and store the vegetables stored in the vegetable compartment.

Japanese Patent Laid-Open No. 9-113109

An object of the present invention is to provide a refrigerator that suppresses an extreme temperature difference in a vegetable compartment .

The refrigerator of the present invention is provided in a refrigerating compartment, a vegetable compartment, a cooling compartment having a cooler for generating cool air, and a rear side of the vegetable compartment, for returning the cool air in the refrigerating compartment to the cooling compartment. Return passage, an outlet provided in the middle of the return passage for supplying cold air to the vegetable compartment, and a vegetable compartment fan provided at the outlet for circulating cold air in the vegetable compartment wherein the Ru with and.

The refrigerator of the present invention can suppress an extreme temperature difference in the vegetable compartment .

Front view of the refrigerator according to the first embodiment of the present invention The front view when the door of the refrigerator in the first embodiment is opened. The AA sectional view of FIG. 2 which shows the refrigerator in the same Embodiment 1. FIG. The BB sectional view of FIG. 2 which shows the refrigerator in the same Embodiment 1. FIG. Half-cut perspective view of the refrigerator in the first embodiment Schematic sectional view for explaining the cold air flow of the refrigerator in the first embodiment The schematic front view explaining the cold air flow of the refrigerator in the same Embodiment 1. The perspective view explaining the cold air flow of the cooling chamber back surface part of the refrigerator in the same Embodiment 1. The principal part expanded sectional view of FIG. 3 which shows the refrigerator in the same Embodiment 1. FIG. 9 is a schematic cross-sectional view for explaining the cold air flow in FIG. The principal part expanded sectional view of FIG. 4 which shows the refrigerator in the same Embodiment 1. FIG. FIG. 11 is a schematic cross-sectional view for explaining the cold air flow in FIG. The enlarged front view which shows the vegetable compartment and the freezer compartment of the refrigerator in the same Embodiment 1. FIG. 13 is an enlarged front view showing a cooling fan and a cooler installed on the back of the vegetable compartment and the freezer compartment of the refrigerator shown in FIG. FIG. 3 is an enlarged perspective view showing the back wall portions of the vegetable compartment and the freezer compartment of the refrigerator according to the first embodiment. FIG. 15 is a perspective view of a back partition wall block forming a rear wall portion of the vegetable compartment of the refrigerator shown in FIG. FIG. 16 is an exploded perspective view of the back partition wall block forming the back wall portion of the vegetable compartment shown in FIG. 16 is an exploded perspective view of a block forming a rear wall portion of the freezer compartment shown in FIG. The perspective view of the partition plate and cooling fan which partition the storage room of a refrigerator and the vegetable compartment in the same Embodiment 1. FIG. 19 is an exploded perspective view of the partition plate and the cooling fan in FIG. Sectional drawing which shows the opening back surface part of the partition plate which partitions the vegetable compartment and freezer compartment of the refrigerator in the same Embodiment 1. FIG. FIG. 21 is a perspective view of the opening rear surface portion of the partition plate shown in FIG. The perspective view of the opening back surface part of the partition plate which divides the vegetable compartment and the freezer compartment of the refrigerator in the same Embodiment 1. Sectional drawing which shows the filling condition of the foaming heat insulating material in the opening back surface part of the partition plate which divides the vegetable compartment and freezer compartment of the refrigerator in the same Embodiment 1. FIG. The perspective view which looked at the partition plate which divides the vegetable compartment and freezer compartment of the refrigerator in the same Embodiment 1 from the opening back side. The perspective view which shows the vegetable storage case of the refrigerator in the same Embodiment 1. Control block diagram of the refrigerator in the first embodiment Schematic sectional view of a conventional refrigerator

A first aspect of the present invention relates to a refrigerator body configured by filling a foam insulation material between an inner and an outer box, a partition plate for partitioning the inside of the refrigerator body into a refrigerator room, a vegetable room, and a freezer room from above, and the vegetable. A partition plate that is formed on the back surface of the refrigerator main body so as to straddle a partition plate that partitions the freezer and freezer compartments, and includes a cooler below the inside of the refrigerator and a cooling chamber that has a cooling fan above the cooler, and partition the vegetable compartment and the freezer compartment Is installed so that it communicates between the inner and outer boxes of the refrigerator body and is filled with the refrigerator body together with the foam insulation to be integrated with the refrigerator body, and an opening is formed in the rear part of the partition plate where the cooling chamber is located. The partition plate has a configuration in which separate upper surface members and lower surface members are combined, and a projecting piece that projects above the upper surface member is provided at the opening rear surface portion of the lower surface member.

As a result, the partition plate that separates the vegetable compartment from the freezer compartment has the same high heat insulation as the refrigerator body, and the heat insulation is much higher than that of partition plates made of Styrofoam, etc. When the main body is molded, the partition plate can be integrated into the refrigerator body to improve productivity, and the cooler to be installed in the lower part of the freezer compartment can be installed from the inside of the freezer compartment even if the accumulator is arranged above the refrigerator. It can be installed in a narrow cooling chamber while being inserted into the opening of the partition plate, which makes it easy to install the cooler. Also, heat conduction is blocked between the upper surface and the lower surface of the partition plate, and the freezer compartment is closed. It is possible to prevent the low temperature of the lower surface member facing to the side and the temperature of the lower surface member from being directly transmitted to the upper surface member and lowering the temperature of the upper surface member, and to more effectively prevent the occurrence of dew condensation due to the lower temperature of the upper surface member. The partition plate can be placed on the upper wall of the refrigerator body by pressing a jig on the upward protrusion of the partition plate and then pressing it against the inner wall of the inner box of the refrigerator body.The partition plate is positioned and fixed and the partition plate is filled with foam insulation material. The partition plate can be accurately integrated with the refrigerator body, and productivity can be improved. Moreover, even when the opening is enlarged, the deformation during foaming can be minimized.

In a second aspect of the invention, in the first aspect of the invention, the opening provided in the rear part of the partition plate is larger than the projected area of the top surface of the cooler.

As a result, even if the cooler main body has a large vertical dimension and its upper end projects directly below the lower surface of the partition plate or over the lower surface of the partition plate, it can be installed in the cooling chamber without any trouble. This makes it possible to increase the size and capacity of the refrigerator.

A third aspect of the invention is the configuration according to the first or second aspect of the invention, in which a projecting piece that projects downward is provided at the opening rear surface portion of the lower surface member that constitutes the partition plate.

With this, the partition plate is also pressed against the inner bottom wall of the refrigerator body from both the upper and lower sides by applying a jig to the protrusions on the lower surface of the partition plate, and the partition plate is positioned and fixed to foam the partition plate from the refrigerator body side. The heat insulating material can be filled and integrated, the partition plate can be accurately integrated with the refrigerator body, and productivity can be improved. Moreover, even when the opening is enlarged, the deformation during foaming can be minimized.

In a fourth aspect based on the first to third aspects, the partition plate is provided with a space portion at a rear surface portion of the opening that communicates between the inner and outer boxes of the refrigerator main body, and the space portion is provided inside and outside the refrigerator main body. It is configured to be filled with foamed heat insulating material from between the boxes.

As a result, the rigidity and dimensional accuracy of the rear portion of the opening rear surface of the partition plate are improved, and even if a vibration source such as a cooling fan is present near the opening, a gap distance between the opening and the piping pipe of the cooler or accumulator is surely provided. Therefore, it is possible to suppress the occurrence of chattering noise and the like, and it is possible to provide a refrigerator that is quiet and highly reliable. Further, since the rigidity of the opening is increased, it is possible to hermetically seal the cooling chamber constituent member in contact with the rear portion of the opening back surface.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the upward projecting piece of the lower surface member forming the opening of the partition plate is provided with a rib protruding toward the space portion side of the rear surface of the opening.

As a result, the strength of the upward protruding piece itself can be improved, and even if the foaming pressure of the foam insulation material filling the space is applied, it is possible to prevent the upward protruding piece from bending due to this foaming pressure and deforming the opening shape. You can

In a sixth aspect based on the fourth or fifth aspect, the space portion filled with the foamed heat insulating material has an upper portion formed by fitting an upper surface member and a lower surface member, and a lower portion is an upward protrusion of the lower surface member. It is configured such that the piece contacts the inner wall of the inner box of the refrigerator body.

As a result, a space for filling the foamed heat insulating material is formed in the opening back surface of the partition plate to improve the rigidity and dimensional accuracy of the opening back surface of the partition plate as described in the sixth aspect of the invention. Good cooling storage and quietness without noise such as chattering can be realized.

In a seventh aspect based on the first to sixth aspects, a back partition wall is attached to the back of the vegetable compartment to partition the vegetable compartment from the cooling chamber, and the rear side of the back partition is cooled. The configuration is such that the connector connection portion of the cooling fan is arranged in the room temperature band.

As a result, the cooling fans existing in the cooling chamber temperature band can be electrically connected within the same cooling chamber temperature band, which occurs when the lead wire of the cooling fan is drawn out to a portion other than the cooling chamber temperature band and connected. It is also possible to prevent dew condensation on the lead wire, which tends to occur.

An eighth invention is the partition plate for partitioning the vegetable compartment and the freezing compartment as well as partitioning the vegetable compartment and the cooling compartment by mounting a back partition wall on the back surface of the vegetable compartment in the first to seventh inventions. A cooling fan is attached to the upper part, and the cooling fan is located at the back of the vegetable compartment.

As a result, the cooling fan can be attached to the partition plate from the inside of the vegetable compartment before the back partition wall body is mounted, and if the back partition wall body is detached, maintenance of the cooling fan can be performed. It can be a refrigerator with good maintenance.

Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to this embodiment.

(Embodiment 1)
1 is a front view of the refrigerator according to the first embodiment of the present invention, FIG. 2 is a front view of the refrigerator according to the first embodiment when a door is opened, and FIG. 3 is a view of the refrigerator according to the first embodiment. 2 is a sectional view taken along line A-A of FIG. 2, FIG. 4 is a sectional view taken along the line BB of FIG. 2 showing the refrigerator in the first embodiment, FIG. 5 is a half perspective view of the refrigerator in the first embodiment, and FIG. 6 is the same embodiment. 1 is a schematic cross-sectional view for explaining the flow of cold air in the refrigerator in FIG. 1, FIG. 7 is a schematic front view illustrating the flow of cold air in the refrigerator in the first embodiment, and FIG. 8 is a rear part of the cooling chamber of the refrigerator in the first embodiment. 9 is a perspective view for explaining the cold air flow of FIG. 9, FIG. 9 is an enlarged sectional view of an essential part of FIG. 3 showing the refrigerator in the first embodiment, and FIG. 10 is a schematic sectional view for explaining the cold air flow in FIG. 4 is an enlarged cross-sectional view of a main part of FIG. 4 showing the refrigerator in the first embodiment, FIG. 12 is a schematic cross-sectional view for explaining the cold air flow in FIG. 11, and FIG. 13 is a vegetable compartment of the refrigerator in the first embodiment. 14 is an enlarged front view showing the freezer compartment, FIG. 14 is an enlarged front view showing the vegetable compartment of the refrigerator shown in FIG. 13 and a cooling fan and a cooler installed on the back of the freezer compartment, and FIG. 15 is the same as the first embodiment. FIG. 16 is an enlarged perspective view showing the rear wall portion of the vegetable compartment and the freezing compartment of the refrigerator, FIG. 16 is a perspective view of the back partition wall block forming the rear wall portion of the vegetable compartment of the refrigerator shown in FIG. 15, and FIG. 17 is the same figure. 16 is an exploded perspective view of a back partition wall block that constitutes the rear wall portion of the vegetable compartment shown in FIG. 16, FIG. 18 is an exploded perspective view of the block that constitutes the rear wall portion of the freezer compartment shown in FIG. 16, and FIG. 20 is a perspective view of a partition plate and a cooling fan that partition the storage room and the vegetable compartment of the refrigerator in the first embodiment, FIG. 20 is an exploded perspective view of the partition plate and the cooling fan in FIG. 19, and FIG. 21 is a view of the refrigerator in the first embodiment. Sectional drawing which shows the opening back surface part of the partition plate which divides a vegetable compartment and freezer room, FIG. 22 is a perspective view of the opening back surface part of the partition plate shown in FIG. 21, FIG. 23 is a vegetable compartment of the refrigerator in the same Embodiment 1. FIG. 24 is a perspective view of an opening rear surface portion of a partition plate that separates the freezer compartment, and FIG. 24 is a cross-sectional view showing the filling state of the foamed heat insulating material in the opening rear surface portion of the partition plate that separates the vegetable compartment and the freezer compartment of the refrigerator in the first embodiment. 25 is a perspective view of a partition plate for partitioning the vegetable compartment and the freezer compartment of the refrigerator according to the first embodiment as seen from the rear side of the opening, and FIG. 26 is a perspective view showing the vegetable storage case of the refrigerator according to the first embodiment. 27 and 27 are control block diagrams of the refrigerator in the first embodiment.

First, the overall configuration of the refrigerator will be described.

<Refrigerator body configuration>
1 to 6, the refrigerator according to the present embodiment includes a refrigerator main body 1 having an open front, and the refrigerator main body 1 includes an outer box 2 mainly using a steel plate as shown in FIG. 3 and the like. It is composed of an inner box 3 molded from a hard resin such as ABS, and a foamed heat insulating material 4 such as hard urethane foam filled between the outer box 2 and the inner box 3. The refrigerator body 1 is divided into a plurality of storage rooms by a partition plate 5.6. The refrigerator body 1 has a refrigerating compartment 7 at the top, a vegetable compartment 8 below the refrigerating compartment 7, and a freezing compartment at the bottom. 9 are arranged, and it is a central vegetable compartment type refrigerator. The front opening of each storage chamber is closed by a door 10, a door 11 and a door 12 so as to be openable and closable.

A machine room 14 is provided in the upper rear area of the refrigerator body 1. The high-pressure side components of the refrigeration cycle, such as a compressor 15 and a dryer (not shown) for removing water, are housed in the machine room 14.

Further, a cooling chamber 16 that generates cold air is provided on the back surface of the refrigerator body 1. The cooling chamber 16 is formed from the rear surface of the freezing chamber 9 to the lower rear surface of the vegetable compartment 8, and a back partition wall body 17 having heat insulation properties such as styrofoam is provided between the cooling compartment 16 and the vegetable compartment 8. Insulation partition.

A cooler 18 is arranged in the cooling chamber 16, and a cooling fan 19 is arranged above the cooler 18. The cooler 18 is designed to have a substantially horizontal width of the cooling chamber 16 and has an accumulator 18a (see FIG. 8, FIG. 20, etc.) disposed above it to increase the size thereof. Further, the cooling fan 19 forcibly circulates the cool air cooled by the cooler 18 to the refrigerating compartment 7, the vegetable compartment 8 and the freezing compartment 9 to cool each compartment. For example, the refrigerating compartment 7 is normally cooled to a temperature at which food does not freeze to 1°C to 5°C, and the vegetable compartment 8 is cooled to a temperature equal to or slightly higher than the refrigerating compartment 7 to 2°C to 7°C. Further, the freezer compartment 9 is normally cooled to a freezing temperature range of -22a°C to -15°C for freezing storage, and in some cases, for improving the frozen storage state, for example, at a low temperature of -30°C or -25°C. It may be cooled to.

As shown in FIG. 19, the cooling fan 19 is attached to the partition plate 6 that partitions the vegetable compartment 8 and the freezer compartment 9. In this state, the cooling fan 19 faces the back surface of the vegetable compartment 8 as shown in FIG. The cool air is blown toward the rear partition wall 17 which is located in the portion and partitions the vegetable compartment 8 from the vegetable compartment 8 to bring strong cold radiation to the lower back surface of the vegetable compartment.

The partition plate 6 and the cooling fan 19 are configured as shown in the exploded perspective view of FIG. That is, the partition plate 6 is configured by filling the foam heat insulating material 4 (not shown in FIG. 20) between the upper surface member 6a and the lower surface member 6b, and the opening 20 is formed on the inner side. .. The above-mentioned cooling fan 19 is attached to the upper part of the opening 20, and the cooler 18 of the cooling chamber 16 is located below the cooling fan 19. In the present embodiment, the opening 20 is formed larger than the upper surface projected area of the cooler 18 located therebelow, and a projecting piece 21 projecting downward is formed on the lower surface of the opening back side edge portion of the lower surface member 6b. Further, upward projecting pieces 22a that project upward from the opening edge of the upper surface member 6a are formed on the upper surface. The partition plate 6 has a first heater 23 formed of a sheathed heater or the like for preventing dew condensation, which is embedded in a portion of the partition plate 6 which is located in front of the cooling fan 19 and serves as the bottom surface of the vegetable compartment.

Reference numeral 20 in the figure is a heat insulating barrier that covers the front side and both sides of the opening edge of the opening 20, and is made of Styrofoam or the like, and one side piece for the cold air return passage provided in the partition plate 6 A passage opening 26 corresponding to the opening 25 is formed. Further, a tank installation portion 27 for supplying water to the ice making device provided in the freezer compartment 9 is formed at a portion of the partition plate 6 opposite to the cold air return passage opening 25.

Here, although not shown, the partition plate 6 is formed into a hollow plate shape by combining an upper surface member 6a and a lower surface member 6b, and is mounted so as to communicate between the inner and outer boxes 2 and 3 of the refrigerator body 1. The foamed heat insulating material 4 is filled together with the refrigerator body 1 to be integrated with the refrigerator body 1. When the partition plate 6 is integrated with the refrigerator body 1, a jig (not shown) is pressed against the projecting piece 21 and the upward projecting piece 22a and pressed against the inner wall 3 of the refrigerator body 1 as it is to form the partition plate. 6 is positioned and held at a predetermined position, and by filling the foam main body 1 with the foam heat insulating material 4, the foam heat insulating material 4 is filled and foamed between the upper and lower surface members 6a and 6b from the refrigerator main body side to be integrated with the refrigerator main body 1. There is. In this state, the partition plate 6 divides the cooling chamber 16 into upper and lower parts. Therefore, the opening 20 is provided at the rear part of the partition plate 6 and the cooling chamber upper part where the cooling fan 19 is located and the cooling chamber lower part where the cooler 18 is located are provided. Are in communication.

In addition, as shown in FIGS. 21 to 25, the partition plate 6 has a space portion 20a formed in the rear side portion of the opening 20 and communicating with the inner box 3 and the outer box 2 of the refrigerator body 1. The space 20a is filled with a part of the foamed heat insulating material 4 from between the inner box 3 and the outer box 2 of the refrigerator body 1 to be integrated. Further, the lower portion of the hanging piece 22b from the upward protruding piece 22a provided so as to close the lower portion of the space portion 20a is fixed to the inner wall 3a of the inner box 3 of the refrigerator body 1 by pressure.

More specifically, first, the lower surface member 6b constituting the partition plate 6 has a concave portion which becomes the space portion 20a for filling the foamed heat insulating material, as shown in FIG. The portion has a hanging piece 22b that hangs along the inner wall 3a of the inner box 3. The downward projecting piece 22c provided outside the opening rear surface of the upper surface member 6a fitted to the lower surface member 6b is positioned so as to cover the concave portion of the upward projecting piece 22a, and the above-described foam insulation is provided therebetween. A space portion 20a for filling the material is formed.

On the other hand, a plurality of holes 20b are provided in a row in the back wall 3a portion of the inner box 3 facing the space 20a, and the space 20a and the inner box 3 of the refrigerator body 1 and the outside are provided through the holes 20b. A part of the foamed heat insulating material 4 between the inner box 3 and the outer box 2 of the refrigerator main body 1 is filled in communication with the box 2.

Further, mounting holes 3b (see FIG. 25) are formed at three positions on the left and right sides of the back and the center of the inner wall 3a of the inner box 3, and the reinforcing plate 3c is applied to these three mounting holes 3b. The reinforcing plate 3c and the hanging piece 22b of the lower surface member 6b are fastened by a fastener 3d, and the hanging piece 22b from the upward projecting piece 22a of the lower surface member 6b is press-contacted and fixed to the back wall 3a of the inner box 3. The space 20a is closed.

In FIG. 22, reference numeral 22d denotes a plurality of ribs of convex stripes integrally formed on the upward projecting piece 22a of the lower surface member 6b toward the foam heat insulating material filled space side. The downward projecting rib 22a of the upper surface member 6a constituting the space portion 20a. A gap T (see FIG. 24) for flowing the foamed heat insulating material is formed between the piece 22c and the piece 22c. Further, 13 is a sealing material for sealing the space portion 20a for filling the foamed heat insulating material, 18b is a refrigerant circulation pipe, 3e is a packing arranged between the downward projecting piece 22c and the back wall 3a (because it is displayed in a non-compressed state, It is up to the outside of the wall 3a).

A defrosting heater 28 that defrosts frost and ice adhering to the cooler 18 and its surroundings is arranged in the lower space of the cooler 18 described above. A drain pan 29 for receiving defrost water generated during defrost is arranged under the defrost heater 28, and the defrost water is discharged from the deepest part of the drain pan 29 to an evaporation tray outside the refrigerator via a drain tube (not shown). It is like this.

Next, the cold air circulation configuration will be described.

<Cold air circulation passage configuration>
As shown in FIG. 9 and the like, the cooling chamber 16 for generating cold air has a downstream side of a cooling fan 19 opened in a cooling chamber cold air transfer passage 30 formed between the back partition wall body 17 and the refrigerator body 1 described above. Then, the cool air is blown into each room through the cool room cold air transfer path 30.

The upper portion of the cooling room cold air conveying path 30 is a cold storage cold air passage 32 formed in a substantially central portion of the rear surface of the cooling room 7 via a cooling room damper 31 as shown in FIGS. Is in communication with. As shown in FIGS. 7 and 8, a refrigerating cold air return passage 33 from the refrigerating chamber 7 is provided adjacent to the side of the refrigerating cold air outgoing passage 32, and a lower portion thereof communicates with the vegetable compartment 8 and the cooling compartment 16. There is.

As shown in FIG. 7, the refrigerating compartment 7 is provided with a refrigerating cool air inlet 35 of a refrigerating cool air passing passage 32 at an appropriate place on the upper back wall thereof, and a refrigerating cool air opening to the refrigerating cool air returning passage 33 at a proper place of the lower wall thereof. A return port 36 is provided, and the cold air from the cooling chamber 16 is supplied to the cold storage cold air passage 32 via the cold storage chamber damper 31 and is supplied to the cold storage chamber 7 from the cold storage cold air inlet 35. On the other hand, the cold air after cooling the refrigerating compartment is supplied from the refrigerating cool air returning port 36 to the vegetable compartment 8 through the refrigerating cool air returning passage 33 and circulates to the cooling compartment 16. Further, a partial chamber is provided in the lower part of the refrigerating chamber 7 as described later, and as shown in FIG. 8, the partial chamber damper 31a, the partial chamber cool air outgoing passage 32a, the partial chamber cold air inlet are provided in the partial chamber. It is designed to be supplied via 35a.

In this embodiment, as is clear from FIG. 8, the cooling chamber cold air conveying passage 30, the cold storage cold air outgoing passage 32, and the partial chamber cold air outgoing passage 32a are provided on the back surface of the inner partition wall 17 and the partition plate 6. And a return passage 38 for connecting the refrigerating/cooling air return passage 33 to the vegetable compartment 8 and the cooling compartment 16 are formed, and the refrigerating compartment damper 31 is provided in the outward passage 37. ..

A communication passage 39 is formed between the refrigerating/cooling air returning passage 32 and the refrigerating/cooling air returning passage 33 so that a part of the low temperature/cooling air flowing in the refrigerating/cooling air returning passage 32 is mixed into the refrigerating/cooling air returning passage 33. It is configured.

Further, as shown in FIG. 8, a cold air return duct 40 is provided on the rear surface of the freezing chamber 9 and extends downwardly beside the cooling fan 19 and the cooler 18 of the cooling chamber 16. The upper portion communicates with the vegetable compartment 8 through the return passage 38, and the lower portion opens near the lower portion of the cooling chamber 16, and the cold air after cooling the vegetable compartment 8 opens through the cold air return duct 40 to the lower portion. From the cooling chamber 16 to the cooling chamber 16.

On the other hand, as shown in FIG. 10, the freezing room 9 has a freezing/cooling air inlet 42 communicating with a lower part of the cooling room cold air conveying path 30 on the rear surface of the inner partition wall 17 at the upper part of the rear wall body 41 and the cooling room at the lower part. A freezing/cooling air return port 43 opening to the bottom of the cooling chamber 16 is formed, and the cooling air from the cooling chamber 16 is supplied from the lower part of the cooling chamber cooling air conveying path 30 via the cooling/cooling air inlet 42, and the cooling air after cooling the cooling chamber is frozen. It circulates to the cooling chamber 16 via the cold air return port 43.

<Vegetable room composition>
As shown in FIGS. 7 and 12, the vegetable compartment 8 is located on the left or right side of the inner wall, which is the lower part of the right side when viewed from the front in this embodiment, and is the return passage 38 portion from the refrigerated cold air return passage 33. A vegetable cold air inlet 44 that is open to the inside is provided, and a vegetable cold air return port 46 that is opened to the return passage 38 and is connected to the cooling chamber 16 is provided at a position substantially above the vegetable cold air inlet 44.

Further, as shown in FIG. 12, a vegetable compartment passage portion 50 is vertically provided in the vegetable compartment 8 at the front position of the cold air return passage 38 by utilizing the back partition wall 17 on the rear surface of the vegetable compartment 8. It is formed vertically. The vegetable chamber passage 50 has an upper portion communicating with the vegetable cold air return port 46 and a lower portion communicating with the vegetable cold air inlet 44, and the portion communicating with the vegetable cold air inlet 44 includes a propeller fan or the like. 53 is arranged.

Furthermore, in the vegetable compartment 8, a first passage 47a is formed on the upper surface of the vegetable compartment toward the front so as to connect to the vegetable compartment passage portion 50 and the vegetable cold air return port 46, and a first passage 47a is formed in the front portion thereof. One vegetable cold air suction port 47 is provided.

In addition, in the vegetable compartment 8 of this embodiment, as shown in FIG. 13 and FIG. 16 and the like, it is at the upper portion of the back partition wall body 17 which is the inner surface thereof and at the diagonal position of the vegetable cold air inlet 44. A second vegetable cold air suction port 51 is provided in the portion, in the present embodiment, on the upper left side on the left side, and a second passage 51a having the second vegetable cold air suction port 51 is also shown in FIG. Further, the upper part of the vegetable compartment passage portion 50 and the vegetable cold air return port 46 communicate with each other.

FIG. 17 is an exploded perspective view of the back partition wall 17 forming the vegetable compartment passage portion 50. The vegetable compartment passage portion 50 has a front partition plate 17a and a rear partition plate 17a which are polymerized via Styrofoam (not shown). It is formed between the partition plate 17b and its upper end portion 50a is opened to the vegetable cold air return port 46 as shown in FIG. Further, as described above, the vegetable compartment fan 53 is incorporated in the lower portion of the vegetable compartment passage portion 50, and the air outlet 54 thereof is opened into the vegetable compartment 8 and the cold air from the vegetable cold air inlet 44 and the Cold air in the vegetable compartment from the first vegetable cold air inlet 47 and the second vegetable cold air inlet 51 is blown into the vegetable compartment 8. The outlet 54 of the vegetable compartment fan 53 is open toward the rear surface of a lower vegetable storage case 49a described later, and the lower rear portion of the lower vegetable storage case 49a facing the vegetable compartment fan 53 is located forward and downward. The cooling air from the vegetable compartment fan 53 is configured to intensively flow into the lower space of the lower vegetable storage case 49a.

Further, as shown in FIG. 10, a second dew condensation preventing heater 56 made of a sheathed heater is embedded in the surface of the inner partition wall 17 facing the cooling chamber 16. The second heater 56 is installed in a low temperature cooling chamber temperature zone, which is a position facing the upper part of the cooling chamber 16 and lower than the cooling chamber damper 31 that opens and closes cold air from the cooling chamber 16 to the cooling chamber 7. Has been done. That is, the second heater 56 is provided in a portion of the inner partition wall 17 that constitutes the entire inner surface of the vegetable compartment 8, particularly in a portion facing the cooling chamber temperature zone between the cooling chamber 16 and the refrigerator compartment damper 31. To reduce the size.

Further, the cooling fan 19, the first heater 23 in the partition plate 6, the second heater 56 in the inner partition wall 17 and the like are provided in the cooling chamber cool air conveying path 30 which is in the low temperature chamber cooling zone. A connector connection portion (box 57 (see FIG. 14)) of an electric member is installed, and electrical connection is made in the cooling chamber cold air conveyance path 30 that is in the cooling chamber temperature zone.

A vegetable storage case 48 is arranged in the vegetable compartment 8 as shown in FIG. 11, and the vegetable storage case 48 includes a lower vegetable storage case 49a mounted on the frame of the door 11 and a lower vegetable. It is composed of an upper vegetable storage case 49b placed on the storage case 49a. The vegetable compartment 8 is provided with a space between the vegetable storage case 48 and the partition plate 6 below and the inner peripheral wall surface of the vegetable compartment 8, and the space is an air passage through which cold air from the vegetable cold air inlet 44 flows. Is composed of.

Further, the upper opening edge of the upper vegetable storage case 49b of the vegetable storage case 48 is located in a portion close to the partition plate 6 in the upper portion of the vegetable compartment 8 and above the vegetable cold air inlet 44, and The cold air from the inlet 44 is configured not to directly enter the upper and lower vegetable storage cases 49b and 49a of the vegetable storage case 48. A lid that closes the upper vegetable storage case 49b may be provided at the upper opening to more reliably prevent cold air from entering the vegetable storage case 48.

Further, as shown in FIG. 26, the lower vegetable storage case 49a is divided into left and right by a case partition plate 58, and the side facing the vegetable cold air inlet 44, in this embodiment, the right side portion is made deeper by one step to make a plastic bottle. It is used as a non-vegetable storage part (hereinafter referred to as a storage part such as a plastic bottle) 59 such as a pack or a pack. The container 59 for storing plastic bottles and the like may partition the inside of the vegetable compartment 8 into front and rear parts, and the front portion thereof may serve as a container for storing plastic bottles and the like.

<Refrigerator configuration>
As shown in FIG. 4 and the like, the refrigerating compartment 7 has a plurality of storage shelves 60 inside and a partial compartment 61 capable of cooling to a sub-freezing temperature zone. A mouth 36 (both see FIG. 7) is provided. An operation section 62 for setting the internal temperature of each room, ice making, quick cooling, and the like is arranged at an appropriate place on the side wall of the refrigerating room 7.

<Freezer compartment configuration>
Also. As already described with reference to FIG. 10, the freezing chamber 9 is formed with a freezing/cooling air inlet 42 communicating with the lower part of the cooling chamber cold air conveying path 30 on the rear surface of the inner partition wall 17 at the upper part of the inner wall, and further at the lower part of the inner wall. A freezing/cooling air return port 43 communicating with the freezing chamber 9 is formed therein. Although not shown in the structural diagram, a freezer compartment damper is also incorporated in an appropriate place in the passage from the cooling room 16 to the freezer compartment 9. The freezing room 9 is also provided with a freezing room case 63 mounted on the frame of the door 12 as shown in FIG. 4 and the like, and an ice making device 64 is provided above the freezing room case 63. It has been incorporated.

Next, the control configuration of this refrigerator will be described.

<Control configuration>
FIG. 27 shows a control block diagram in the refrigerator of the present embodiment, wherein 65 is a refrigerating room temperature detecting means, 66 is a vegetable room temperature detecting means, 67 is a freezing room temperature detecting means, and both are formed by a thermistor, The refrigerator compartment 7, the vegetable compartment 8 and the freezer compartment 9 are installed in appropriate places. Reference numeral 68 denotes a control unit for integrally controlling the entire refrigerator, which is constituted by a microcomputer or the like, and based on the outputs from the refrigerating compartment temperature detecting means 65 and the freezing compartment temperature detecting means 67, according to the control software installed in advance, the refrigerating compartment. The damper 31 and the freezer compartment damper 34 are controlled to be opened and closed, and the compressor 15 and the cooling fan 19 are driven to control each chamber to a preset temperature. Further, the control section 68 controls the operation of the vegetable compartment fan 53 incorporated in the vegetable compartment passage section 50 of the vegetable compartment 8 based on the outputs from the refrigerating compartment temperature detecting means 65 and the vegetable compartment temperature detecting means 66. .. Specifically, the vegetable compartment fan 53 is driven when one of the temperatures detected by the refrigerating compartment temperature detecting means 65 and the vegetable compartment temperature detecting means 66 is higher than the set temperature. Furthermore, the control section 68 drives the first and second heaters 23 and 56 based on the output from the vegetable compartment temperature detecting means 66.

The operation and action of the refrigerator configured as described above will be described below.

First, the operation of the refrigeration cycle will be described.

The refrigerating cycle is operated by the signal from the control unit 68 according to the set temperature in the refrigerator, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 15 is condensed and liquefied to some extent by a condenser (not shown), and further, a refrigerant pipe (not shown) disposed on the side surface or the back surface of the refrigerator or the front opening of the refrigerator. No.) and the like to condense and liquefy while preventing condensation in the refrigerator, and reach a capillary tube (not shown). Thereafter, the capillary tube is decompressed while exchanging heat with a suction pipe (not shown) to the compressor 15 to become a low-temperature low-pressure liquid refrigerant and reaches the cooler 18 in the cooling chamber. Here, the refrigerant in the cooler 18 is evaporated and vaporized, and cold air for cooling each storage chamber is generated in the cooling chamber 16 including the cooler 18.

Next, the cooling operation by the cold air circulation will be described.

The low-temperature cold air generated in the cooling chamber 16 is sent to the refrigerating chamber 7 and the freezing chamber 9 by the cooling fan 19 from the cooling chamber cold air conveying path 30, and the cold air supplied to the refrigerating chamber 7 cools the refrigerating chamber 7. After that, it is supplied to the vegetable compartment 8 and each compartment is cooled to the set temperature. Then, the cool air after cooling each chamber returns to the cooling chamber 16 again, is cooled by the cooler 18, and is circulated to each chamber by the cooling fan 19. Further, in the supply of cold air to each of the above-mentioned chambers, the control unit 68 operates/stops the compressor 15 and the cooling fan 19 based on the temperatures detected by the refrigerating compartment temperature detecting means 65 and the freezing compartment temperature detecting means 67, and the refrigerating compartment damper 31. The open/close control of the freezer compartment damper 34 is performed so that each compartment is maintained in the set temperature range.

Next, the cooling operation of the vegetable compartment 8 will be described.

The vegetable compartment 8 is cooled by the cold air after cooling the refrigerating compartment from the refrigerating cool air returning passage 33 being supplied from the vegetable cold air inlet 44 provided in the cool air returning passage 38 as shown in FIG. This cold air gently flows into the vegetable compartment 8 from the vegetable cold air inlet 44 through the vegetable compartment passage portion 50 by the circulating air pressure of the cooling fan 19, and the lower and upper vegetable storage cases 49a and 49b of the vegetable storage case 48 and the vegetables are stored. The vegetables and PET bottles stored in the vegetable storage case 48 flow indirectly through the space between the inner peripheral wall of the chamber 8 and the vegetable storage case 48, and the vegetable cold air return port 46 allows the cold storage cold air return passage 33. Through the cold air return duct 40 to the cooling chamber 16.

Here, in the refrigerator shown in this embodiment, the vegetable compartment fan 53 is provided in the vegetable compartment passage portion 50 of the vegetable compartment 8 as shown in FIG. 12, and when the vegetable compartment fan 53 rotates, the return passage 38 is opened. Most of the returning cool air flowing is sucked from the vegetable cold air inlet 44 into the vegetable compartment passage 50, and is supplied from the outlet 54 of the vegetable compartment fan 53 toward the rear surface of the lower vegetable storage case 49a in the vegetable compartment 8. become.

The cool air supplied toward the lower vegetable storage case 49a of the vegetable compartment 8 is sent to the cooling fan 19 through the space between the lower vegetable accommodating case 49a and the upper vegetable accommodating case 49b and the bottom and inner peripheral walls of the vegetable compartment 8. It flows faster than the flow when it is circulated by wind pressure, and returns from the vegetable cold air return port 46 to the cooling chamber 16 through the return passage 38 and circulates. At that time, the cold air other than the cold air which returns to the cooling chamber 16 and circulates, the first vegetable cold air suction port 47 and the second vegetable cold air suction port 51 provided at the upper portion of the vegetable chamber 8 are used to supply the first passage 47a and the second cold air. 51a of the vegetable chamber passage 53a, the vegetable chamber fan 53 is sucked through the upper opening of the vegetable chamber passage portion 50 communicating with these passages, and the lower vegetable in the vegetable chamber 8 is again discharged from the air outlet 54 of the vegetable chamber fan 53. It is supplied toward the storage case 49a and diffuses and/or circulates in the vegetable compartment 8.

Next, the prevention of dew condensation in the vegetable compartment 8 will be described.

Although the vegetable compartment 8 is cooled as described above, it receives cold radiation from the cooling compartment 16 located on the back surface thereof and the freezing compartment 9 located below, and the vicinity of the lower part of the rear surface tends to be cooled as in the conventional case. .. In particular, the cold radiation from the cooling chamber 16 is strong, and the cold radiation to the rear surface of the vegetable compartment 8 is not limited to the cooling chamber 16 itself, but the cooling chamber cold air transfer path 30 zone from the cooling chamber 16 to the refrigerator chamber damper 31 is the cooling chamber. The cooling chamber temperature range is in the same cryogenic zone as that of 16, and strong cooling radiation is received at the portion facing the cooling chamber temperature zone up to the refrigerating chamber damper 31, and this portion is easily cooled.

In this refrigerator, first, in the refrigerator, the temperature is dispersed by the cold air that diffuses or circulates in the vegetable compartment 8 by the driving of the vegetable compartment fan 53, so that the temperature is suppressed. To do. That is, the cold air in the vegetable compartment 8 is diffused and/or circulated by the vegetable compartment fan 53, and the diffused and/or circulated cold air is radiated from the cooling compartment temperature zone located on the back surface of the vegetable compartment 8 and located below. The temperature near the lower part of the back of the vegetable compartment, which is likely to be lowered by the cold radiation from the freezing compartment 9, is diffused into the vegetable compartment 8 to lower the temperature in the vegetable compartment 8 to cool the inside of the vegetable compartment 8 and at the same time, near the lower part of the rear portion of the vegetable compartment Suppresses extremely low temperatures and temperature differences and prevents dew condensation.

In this way, the local temperature decrease in the vegetable compartment 8 is suppressed, but if this state continues for a long time, the cooling or diffusion of the cold air by the vegetable compartment fan 53 cannot fully suppress the cooling temperature, and dew condensation occurs. The temperature may drop to an easy temperature.

In such a case, in the refrigerator, the control unit 68 causes the second heater 56 provided in a portion facing the cooling chamber temperature band on the rear surface of the vegetable chamber to generate heat. As a result, the temperature drop near the lower part of the rear surface of the vegetable compartment due to the cold radiation from the cooling compartment temperature band can be reliably suppressed, and the occurrence of dew condensation can be avoided. Particularly, in this embodiment, the partition plate 6 for partitioning the vegetable compartment 8 and the freezing compartment 9 is provided with the first heater 23, and the first heater 23 is also heated together with the second heater 56. It is also possible to reliably suppress the cold radiation, and efficiently prevent the temperature in the vicinity of the lower portion of the lower part of the rear surface of the vegetable compartment from being deteriorated and prevent the deterioration of vegetables due to the occurrence of dew condensation.

In addition, the second heater 56 is provided only in the cooling chamber temperature zone from the cooling chamber 16 to the refrigerating chamber damper 31 in the back partition wall body 17 that serves as the back wall of the vegetable chamber 8. Therefore, it is possible to raise the temperature of a portion that is likely to be lowered in temperature while keeping the cost and power consumption to a minimum and to reliably prevent the portion from being lowered in temperature, and it is possible to efficiently suppress the occurrence of dew condensation.

As described above, this refrigerator prevents the occurrence of dew condensation due to the local lowering of the temperature of the vegetable compartment 8. Therefore, the cooler 18 for generating cold air is enlarged and the cooling compartment 16 extends over the freezing compartment 9 and the vegetable compartment 8. Even a large-capacity large refrigerator can suppress dew condensation due to cold radiation from the cooling chamber 16. Therefore, in refrigerators in all areas from small refrigerators with small capacity to large refrigerators with large capacity, it is possible to suppress vegetable deterioration due to dew condensation water generated by cold radiation from the cooling chamber 16 and to cool and store vegetables in a good state. It will be possible. In addition, this refrigerator is a middle vegetable compartment type refrigerator in which the vegetable compartment 8 is provided between the refrigerating compartment 7 and the freezing compartment 9 in the upper and lower substantially central portions of the refrigerator main body 1. This is effective because it can prevent the vegetables from being cooled and stored in a good state and enhance the usability of the user who mainly uses the vegetables and the like for taking in and out.

Next, the feature of the present invention, that is, the suppression of the lowering of the temperature of the partition plate 6, which is one of the causes of the dew condensation in the vegetable compartment 8, and the related facilitation of mounting the cooler 18 in the cooling compartment will be described.

First, the partition plate 6 for partitioning the vegetable compartment 8 and the freezing compartment 9 is mounted so as to communicate between the inner and outer boxes 2 and 3 of the refrigerator body 1, and is foamed with the refrigerator body 1 when the refrigerator body is molded. The partition plate 6 has a high heat insulating property such as urethane foam as in the refrigerator main body 1 because the partition plate 6 is filled with. Moreover, the partition plate 6 can be integrated with the refrigerator body 1 when the refrigerator body is molded. Therefore, for example, as compared with a case where the partition plate 6 is attached later as a heat insulating partition plate using Styrofoam or the like after molding the refrigerator main body, the heat insulating property becomes significantly excellent, and The amount of cold radiation from the freezer compartment 9, which causes the generation of dew condensation, can be greatly reduced, and it can greatly contribute to the prevention of dew condensation generation. Moreover, the step of retrofitting the partition plate 6 is not necessary, and the productivity is improved. In addition, the partition plate 6 itself can be made thin, and the volume of the vegetable compartment 8 or the freezing compartment 9 can be increased accordingly.

Further, since the partition plate 6 is configured by combining the upper surface member 6a and the lower surface member 6b which are independent of each other, heat conduction between the upper surface member 6a and the lower surface member 6b of the partition plate 6 is required. Can be suppressed. Thus, it is possible to prevent the low temperature of the lower surface member 6b facing the freezing chamber from being directly transmitted to the upper surface member 6a and lowering the temperature of the upper surface member 6a, so that dew condensation occurs due to the lower temperature of the upper surface member 6a. Can be prevented more efficiently.

In addition, in this refrigerator, since the connector connecting portion 57 of the cooling fan 19 is arranged in the cooling chamber temperature band on the back side of the vegetable compartment 8, the lead wires of the cooling fan 19 existing in the cooling chamber temperature band are the same. It is possible to make electrical connection within the temperature zone of the cooling chamber of the temperature zone, and it is apt to occur when the lead wire of the cooling fan 19 is drawn out to a portion other than the temperature zone of the cooling room to connect the lead wire. Occurrence can be prevented.

Further, since the partition plate 6 is integrated with the refrigerator main body 1 during molding of the refrigerator main body, the rear part of the partition plate 6 divides the vegetable compartment 8 and the cooling compartment 16 located on the back surface of the freezing compartment 9 into upper and lower parts. However, since the opening 20 is provided in the rear portion thereof, even if the partition plate 6 is integrated when the refrigerator main body 1 is molded, the cooling chamber 16 is provided with the vegetables from the back of the freezing chamber as in the case where the partition plate 6 is retrofitted. It becomes continuous over the back of the room. Therefore, the cooler 18 can be easily incorporated into the cooling chamber 16.

That is, first, the cooler 18 is built in the cooling chamber 16 from the inside of the freezing chamber 9 by removing the back wall of the freezing chamber 9, and the cooling device 18 is formed so as to have a substantially horizontal width. Even if the accumulator 18a is arranged above and is made larger in size, the accumulator 18a arranged above can be inserted into the opening 20 of the partition plate 6 and incorporated into the narrow cooling chamber 16, and the cooler 18 can be incorporated. It can be done easily.

Next, since the opening 20 is made larger than the projected area of the upper surface of the cooler 18, the vertical dimension length of the main body of the cooler 18 is large, and the upper end thereof is directly below the lower surface of the partition plate 6 or the lower surface of the partition plate 6. Even in the case of overshooting and projecting upward, it is possible to insert the upper part of the cooler 18 into the narrow cooling chamber 16 while inserting the upper part of the cooler 18 into the opening 20 of the partition plate 6, and to easily install the cooler 18. You can do it.

And by these, even when using the large-sized cooler in which the accumulator 18a of the cooler 18 and the main body part upper part are located even to the vegetable chamber back part across the partition plate 6, it can respond to this. The size of the refrigerator can be increased.

Further, by making the opening 20 of the partition plate 6 larger than the projected area of the cooler 18, the cool air generated by the cooler 18 located at the back of the freezer compartment is located at the back of the vegetable compartment. It will flow smoothly to the fan 19. As a result, the flow resistance of cold air can be reduced, and cold air circulation with less loss can be realized.

Incidentally, the opening 20 may be set smaller than the upper surface projected area of the cooler 18 contrary to the above, and in this case, the cool air flowing through the cooling chamber 16 does not pass through the outer periphery of the cooler 18 without fail. It is possible to increase the heat exchange rate by passing through the inside of the cooler 18 to improve the cooling efficiency, and select any one of the relationship between the opening 20 and the top projected area of the cooler 18 according to the characteristics of the refrigerator to be applied. Good.

On the other hand, the partition plate 6 is provided with an upward projecting piece 22a projecting upward from the upper surface member 6a from the rear surface of the opening 20 and a projecting piece 21 projecting downward from the lower surface member 6b. When integrated into 1, the partition plate 6 is divided by pressing a jig (not shown) against the projecting piece 21 and/or the upward projecting piece 22a and pressing the jig as it is against the inner wall of the inner box 3 of the refrigerator body 1 as described above. The plate 6 is positioned and held at a predetermined position, and the foam heat insulating material 4 is filled and foamed from the refrigerator main body 1 side between the upper and lower surface members 6a and 6b so that the refrigerator main body 1 can be molded and integrated at the same time, further improving productivity. To do.

In addition, the back surface partition wall body 17 that constitutes the back surface of the vegetable compartment 8 is attached after the refrigerator body is molded, and the cooling fan 19 is attached to the upper part of the partition plate 6 and is located on the back surface of the vegetable compartment 8. Therefore, the cooling fan 19 can be attached to the partition plate 6 from the inside of the vegetable compartment 8 before mounting the back partition wall body 17, and if the back partition wall body 17 is attached or detached, The refrigerator can be maintained and can be assembled and maintained easily. The accumulator 18a of the cooler 18 welds the refrigerant pipe before mounting the inner partition wall body 17, which is advantageous in that the welding is also facilitated.

Further, the opening 20 of the partition plate 6 which is to be covered together with the cooling fan 19 by the attachment of the back surface partition wall body 17 has the upward projecting piece 22a and the upper surface member 6a of the lower surface member 6b constituting the rear surface of the opening 20. Since the space 20a is formed between the space and the downward protruding piece 22c, and the space 20a is filled with the foamed heat insulating material 4, the dimensional accuracy and rigidity of the part can be improved. Therefore, even if the cooling fan 19 and the cooler 18 are present in the vicinity by filling the space 20a behind the opening 20 with the foamed heat insulating material 4 to increase the rigidity of the rear surface of the opening 20 of the partition plate 6. Since the gap distance between the opening 20 and the piping of the cooler 18 or the accumulator 18a can be surely provided, it is possible to suppress the generation of chattering noise or the like using this as a vibration source, and it is quiet and highly reliable. It can be a refrigerator.

Further, the cooling chamber 16 formed between the lower surface of the back surface partition wall body 17 mounted so as to cover the opening 20 of the partition plate 6 and the back wall 3a of the inner box 3 and the peripheral portion of the opening 20 of the partition plate 6 is provided. Therefore, it is possible to securely seal the air, and it is possible to prevent a part of the low temperature cold air of the cooling chamber 16 flowing through the opening 20 from leaking to the vegetable chamber 8. Therefore, it is possible to prevent freezing and the like of vegetables caused by the low-temperature cold air from the cooling chamber 16 directly flowing into the vegetable chamber 8, and it is possible to ensure good cold storage of the vegetables.

Moreover, since the upward projecting piece 22a of the lower surface member 6b forming the opening 20 of the partition plate 6 has a structure in which a plurality of ribs 22d are provided toward the space portion 20a for filling the foamed heat insulating material, the upward projecting piece 22a itself. The strength is also improved, and even if the foaming pressure of the foam heat insulating material 4 is applied, it is possible to prevent the upward projecting piece 22a from being bent by the foaming pressure and deforming the opening shape. Therefore, it is possible to more reliably prevent a gap or the like from being formed around the opening 20 of the partition plate 6, and it is possible to more reliably prevent freezing of vegetables or the like due to low temperature cold air leakage.

In addition, in this embodiment, the upward projecting piece 22a forming the space portion 20a for filling the foamed heat insulating material is provided with the hanging piece 22b at the lower portion of the space portion 20a, and the hanging piece 22b is attached to the inner box 3. Since it is fixed to the inner wall 3a of the inner box 3 by pressing it to the reinforcing plate 3c applied from the rear side of the inner wall of the inner wall, the hanging piece 22b and the inner wall 3a of the inner box 3 are strongly pressed. It can be anything. As a result, even if the vibration of the cooling fan 19 mounted on the partition plate 6 is transmitted to the partition plate 6, the hanging piece 22b is surely prevented from slightly vibrating with respect to the inner wall 3a of the inner box 3. be able to. Therefore, the quietness of the refrigerator can be further improved.

In addition, the pressure contact of the upward projecting piece 22a of the lower surface member 6b to the inner wall 3a of the inner box 3 prevents the foamed heat insulating material 4 filled in the space 20a together with the sealing material 13 provided above and below the space 20a. As a result, it is possible to reliably prevent deterioration of the dimensional accuracy due to the protrusion of the foam heat insulating material 4 and leakage of cold air, which is effective.

As described above, this refrigerator can suppress lowering of the temperature of the partition plate 6 serving as the bottom of the vegetable compartment and at the same time improve the assemblability of the cooler 18 into the cooling chamber 16 to enhance the productivity. Further, since this refrigerator has various effects in cooling the vegetable compartment, this will be described below.

First, since the vegetable compartment fan 53 provided in the vegetable compartment 8 is configured to diffuse or circulate cold air toward the outer periphery of the lower vegetable storage case 49a and the upper vegetable storage case 49b of the vegetable storage case 48, the vegetable compartment It is possible to prevent cold air diffused and/or circulated by the fan 53 from entering the lower vegetable storage case 49a and the upper vegetable storage case 49b and flowing between the vegetables, and the vegetables tend to be generated by the cold air flowing between the vegetables. It is possible to prevent the deterioration due to dryness of the vegetables, and to cool and store the vegetables in a fresh and good condition.

In particular, in this embodiment, the first vegetable cold air suction port 47 also serves as a cold air suction port that diffuses or circulates in the vegetable chamber above the vegetable storage case 48 constituted by the lower vegetable storage case 49a and the upper vegetable storage case 49b. Since the second vegetable cold air suction port 51 is provided, the cold air that diffuses or circulates in the vegetable compartment 8 does not enter the vegetable storage case 48 including the lower vegetable storage case 49a and the upper vegetable storage case 49b as it is. It becomes possible to flow to the first vegetable cold air suction port 47 and the second vegetable cold air suction port 51, so that it is possible to more reliably prevent the vegetables from drying and deteriorating, and to cool and store the vegetables in a fresh and good state. This can be further improved by bringing the upper opening edge of the upper vegetable storage case 49 close to the partition plate 5 that also serves as the ceiling surface of the vegetable compartment, and further effectively by providing a lid that covers the upper surface opening. be able to.

In addition, since the vegetable compartment fan 53 is located below the upper opening edge of the vegetable compartment 48 composed of the lower vegetable compartment 49a and the upper vegetable compartment 49b, the vegetable compartment fan 53 blows air from the vegetable compartment fan 53. The cold air diffuses or circulates around the bottom surface and the outer periphery of the lower part of the lower vegetable storage case 49a of the vegetable storage case 48. Therefore, the cold air diffused and/or circulated by the vegetable compartment fan 53 becomes more difficult to enter the vegetable storage case 48, and the dry deterioration of the vegetables caused by the cold air entering the vegetable storage case 48 and circulating from this point. Can be reliably prevented, and the vegetables can be cooled and stored in a fresher and better condition.

Further, the vegetable compartment 8 has a vegetable compartment passage 50 communicating with the vegetable cold air inlet 44, and a vegetable compartment fan 53 is provided below the vegetable compartment passage 50. Therefore, the vegetable compartment passage 50 has a throat. Such a function can be exerted and the cool air can be efficiently taken into the vegetable compartment 8 to be diffused and/or circulated, whereby dew condensation in the vegetable compartment 8 can be suppressed more efficiently.

In addition, in this embodiment, the vegetable storage case 48 partitions the inside of the lower vegetable storage case 49a into right and left parts, and a storage part 59 for storing plastic bottles such as plastic bottles and packs is provided on one side thereof to store the plastic bottles. Since the vegetable compartment fan 53 is provided on the rear portion of the vegetable compartment on the side of the portion 59 to diffuse or circulate the cold air in the vegetable compartment toward the storage portion 59 such as the PET bottle, the vegetable compartment fan 53 The cold air is intensively circulated around the storage part 59 for storing PET bottles, and the PET bottles and packs stored in the storing part 59 for storing PET bottles can be efficiently cooled. In particular, drinking water such as PET bottles and packs stored in the storage portion 59 for PET bottles is effective because it has a larger heat capacity than vegetables and is hard to cool. The rise can be efficiently suppressed.

In addition, in this embodiment, since the first vegetable cold air suction port 47 provided in the vegetable compartment 8 together with the vegetable compartment fan 53 is also provided in the portion of the vegetable storage case 48 on the side of the storage portion 59 such as the PET bottle, It is effective because the cool air from the vegetable compartment fan 53 to the vegetable cold air return port 46 can be more efficiently and intensively circulated in the storage portion such as the PET bottle.

In addition, since the second vegetable cold air suction port 51, which also serves as another suction port for circulating the cold air in the vegetable chamber 8, is provided in the upper portion of the vegetable chamber substantially diagonally to the vegetable chamber fan 53, The cool air from the vegetable compartment fan 53 diffuses or circulates through the bottom surface of the storage part 59 such as the plastic bottle of the vegetable storage case 48 while obliquely traversing the inside of the vegetable compartment 8 and then circulates. Of the lower vegetable storage case 49a and the upper vegetable storage case 49b while preventing cold air from entering the vegetable compartment case consisting of the lower vegetable storage case 49a and the upper vegetable storage case 49b. Cold air can be diffused or circulated in a wide range on the outer circumference of the vegetable case made of 49b, and the vegetables and the PET bottles can be effectively cooled.

In addition, in this refrigerator, a communication passage 39 is formed between the cold storage cold air passage 32 and the cold storage cold air return passage 33, and when the vegetable compartment fan 53 rotates, the suction force thereof causes a low temperature in the cold storage cold air passage 32. Fresh cold air is mixed into the refrigerated cold air return passage 33, and is supplied from the vegetable cold air inlet 44 into the vegetable compartment 8 through the return passage 38. That is, the vegetable compartment 8 is cooled by the return cool air having a relatively high temperature after cooling the refrigerating compartment from the refrigerating compartment 7, but in this refrigerator, the cold air after the refrigerating compartment is cooled by the rotation of the vegetable compartment fan 53. Fresh cold air having a low temperature is mixed in with the cold air to cool the vegetable compartment 8. Therefore, the vegetable compartment 8 can be effectively cooled, and the vegetable compartment 8 can be reliably cooled even when the cooling load condition is bad, such as when a large amount of vegetables and PET bottles are temporarily stored. be able to. Further, the amount of low-temperature fresh cold air taken in through the communication passage 39 can be increased by increasing the rotation speed of the vegetable compartment fan 53, and a large amount of ordinary temperature PET bottles having a large heat capacity in the summer were stored. Even at times, it can be cooled reliably. Moreover, since the vegetable compartment 8 can be reliably cooled, the occurrence of dew condensation due to cold radiation from the cooling compartment 16 can be efficiently suppressed, and the vegetables can be cooled and stored in a good state.

The vegetable compartment fan 53 is operated when the refrigerator compartment damper 31 is opened by the output from the refrigerator compartment temperature detecting means 65 to cool the refrigerator compartment 7 and the vegetable compartment 8, and diffuses the cold air in the vegetable compartment 8 or Although it is circulated, in the present embodiment, the temperature is controlled in the refrigerator compartment 7 based on the temperature detected by the vegetable compartment temperature detecting means 66 provided in the vegetable compartment 8. Therefore, the temperature of the refrigerator compartment 7 is high and the cooling operation is not performed. Even when the temperature of the vegetable compartment 8 becomes equal to or higher than the set temperature, the vegetable compartment 8 starts to rotate, and cold air is diffused or circulated in the vegetable compartment 8. Therefore, when the temperature of the vegetable compartment becomes high and a large temperature difference occurs due to the cold radiation from the cooling compartment 16 and the dew condensation is likely to occur, the vegetable compartment fan 53 rotates to eliminate the dew condensation and effectively generate the dew condensation. Can be prevented.

Further, if the temperature of the vegetable compartment 8 becomes higher than the second preset temperature which is set to a temperature slightly higher than the preset temperature despite the rotation of the vegetable compartment fan 53, the vegetable compartment fan may be heated. It is possible to increase the number of revolutions of 53 to enhance the diffusion or circulation amount of cold air, and further increase the intake and mixing amount of low-temperature fresh cold air, so that the vegetable compartment 8 can be reliably cooled. Therefore, it is possible to solve the shortage of cooling in the summer and surely realize good cooling storage of vegetables and the like, and enhance the reliability of the refrigerator.

Although the embodiments of the present invention have been described above, the configurations described in the above embodiments are shown as an example for carrying out the present invention, and various modifications can be made within the scope of achieving the object of the present invention. Needless to say.

The refrigerator according to the present invention can improve the heat insulating property of the partition plate between the vegetable compartment and the freezing compartment to suppress cold radiation from the freezing compartment to the vegetable compartment, and also to incorporate the cooler into the cooling compartment. Since it is possible to provide a refrigerator with high productivity while preventing the occurrence of dew condensation in the vegetable compartment, it can be widely applied to not only household refrigerators but also commercial refrigerators.

1 Refrigerator main body 2 Outer box 3 Inner box 3a Back wall 3b Mounting hole 3c Reinforcing plate 3d Fastener 3e Packing 4 Foam insulation 5,6 Partition plate 6a Upper surface member 6b Lower surface member 7 Refrigerator room 8 Vegetable room 9 Freezing room 10, 11 , 12 door 13 sealing material 14 machine room 15 compressor 16 cooling chamber 17 back partition wall body 18 cooler 18a accumulator 18b refrigerant pipe 19 cooling fan 20 opening 20a space part 20b hole 21 projecting piece 22a upward projecting piece 22b hanging piece 22c Downward projecting piece 22d Rib 23 First heater 24 Insulating barrier 25 Cooling air return passage opening 26 Passage opening 27 Tank installation portion 28 Defrost heater 29 Drain pan 30 Cooling room cold air conveying path 31 Refrigerating room damper 32 Refrigerating cold air passing path 33 Cold storage cold air return passage 34 Freezer compartment damper 35 Cold storage cold air inlet 36 Cold storage cold air return port 37 Forward passage 38 Return passage 39 Communication passage 40 Cold air return duct 41 Rear wall 42 Freezing cold air inlet 43 Freezing cold air return port 44 Vegetable cold air inlet 46 Vegetable cold air Return port 47 First vegetable cold air intake port 47a First passage 48 Vegetable storage case 49a Lower vegetable storage case 49b Upper vegetable storage case 50 Vegetable chamber aisle 51 Second vegetable cold air inlet 51a Second passage 52 Second Cold air circulation path 53 Vegetable room fan 54 Air outlet 55 Slope 56 Second heater 57 Connector connection 58 Case partition 59 Non-vegetable storage (storage for PET bottles, etc.)
60 Storage Shelf 61 Partial Room 62 Operation Section 63 Freezing Room Case 64 Ice Making Device 65 Refrigerating Room Temperature Detection Means 66 Vegetable Room Temperature Detection Means 67 Freezing Room Temperature Detection Means 68 Control Section

Claims (11)

A cold room,
A vegetable room,
A cooling chamber having a cooler for generating cold air;
A return passage for returning the cold air in the refrigerating compartment to the cooling compartment, which is provided on the back side of the vegetable compartment,
An outlet provided in the middle of the return passage to supply cold air to the vegetable compartment,
A refrigerator comprising a vegetable compartment fan provided at the outlet for circulating cold air in the vegetable compartment. The vegetable compartment is provided with a storage case in which the storage space is divided into right and left,
The refrigerator according to claim 1, wherein the air outlet and the vegetable compartment fan are provided behind one of the left and right storage spaces. The refrigerator according to claim 1 or 2, wherein the refrigerating room is provided above the vegetable room, and a freezing room is provided below the vegetable room. The refrigerator according to claim 3, further comprising a heater provided between the vegetable compartment and the freezer compartment. The refrigerator according to claim 4, wherein the heater is driven based on the temperature of the vegetable compartment. The cooling chamber is provided on the back side of the refrigerator with respect to the vegetable chamber,
First heater is provided between the freezing chamber and the bottom surface of the vegetable compartment, to claim 3, wherein the second heater is provided between the cooling chamber and the back of the vegetable compartment Refrigerator described. The refrigerator according to claim 6, wherein the first heater and the second heater are driven based on the temperature of the vegetable compartment. The refrigerator according to any one of claims 1 to 7, wherein the vegetable compartment fan is driven based on the temperature of the vegetable compartment. The refrigerator according to any one of claims 1 to 8, wherein the air outlet and the vegetable compartment fan are provided in a lower portion of a back surface of the vegetable compartment. The refrigerator according to any one of claims 1 to 9, further comprising a return port communicating with the return passage and returning the cold air in the vegetable compartment to the cooling chamber. In communication with the return passage, further comprising a return port for returning the cold air of the vegetable compartment to the cooling chamber,
9. The air outlet and the vegetable compartment fan are provided in a lower portion of the back surface of the vegetable compartment, and the return opening is provided in an upper portion of the vegetable compartment, according to any one of claims 1 to 8. Refrigerator described.

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