JP6361020B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator in which a vegetable room is provided at a substantially central portion of the refrigerator main body.

  In general, a home refrigerator is configured by providing a plurality of storage rooms having different temperature bands, for example, a refrigerator room, a vegetable room, a freezer room, etc. in the refrigerator body. And in the refrigerator which has such a some storage room, what has arrange | positioned the vegetable room in the upper-lower approximate center part of the refrigerator main body which a user can use most easily is seen (for example, refer patent document 1).

  FIG. 28 shows a refrigerator described in Patent Document 1, in which a refrigerator room 101 is provided at the top of the refrigerator body 100 and a freezer room 102 is provided at the bottom, and a vegetable room 103 is provided at a substantially central portion of the refrigerator book 100 between the two rooms. It is arranged. A cooling chamber 104 is provided on the back of the refrigerator body 100 across the freezer compartment 102 and the vegetable compartment 103. A cooler 105 and a cooling fan 106 are arranged in the cooling chamber 104, and the cool air generated by the cooler 105 is provided. 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 these compartments is cooled and stored. The vegetable compartment 101 is supplied with cold air after cooling the refrigerator compartment 104 and cools and preserves the vegetables stored in the vegetable compartment.

JP-A-9-113109

  The refrigerator described in Patent Document 1, that is, the refrigerator in which the vegetable compartment 103 is arranged in the substantially upper and lower central portions of the refrigerator main body 100 is called a middle vegetable compartment type refrigerator, and it is easy to take in and out vegetables. It is useful for users who use a lot.

  However, in such a refrigerator, since the cooling chamber 104 is also located on the back of the vegetable chamber 103 and receives strong cooling radiation from the cooling chamber 104, the influence of the cooling radiation from the freezing chamber 102 located therebelow is received. Becomes larger. As a result, dew condensation may occur in the vegetable compartment, so that the heat insulation structure needs to be strong. In the middle vegetable room type refrigerator, when it is intended to increase its cooling capacity, the cooler 106 is designed to fill the width of the cooling chamber, and an accumulator (not shown) integrated therewith is disposed above. Since the structure is increased, the partition plate 107 between the vegetable compartment 103 and the freezing compartment 102 is vertically straddled, or the upper end of the cooler main body is located just below the lower surface of the partition plate 107. There were problems such as difficulty in installation.

  The present invention has been made in view of the above points, and provides a refrigerator that has a high heat insulating effect on a partition plate even in a large refrigerator with a large cooler and that can be easily incorporated into a cooler. It is intended.

In order to solve the above-described conventional problems, the present invention provides a refrigerator main body configured by filling a foam heat insulating material between inner and outer boxes, a refrigerator room, a vegetable room, a freezer room, and the refrigerator main body from above. A partition plate that is divided into two parts, and a cooling chamber that is formed on the back of the refrigerator main body so as to straddle the partition plate that partitions the vegetable compartment and the freezer compartment, and has a cooler below the interior and a cooling fan above it. The partition plate that separates the compartment from the freezer compartment is mounted so as to communicate between the inner and outer boxes of the refrigerator body, and is filled with the foam insulation together with the refrigerator body and integrated with the refrigerator body, and at the rear of the partition plate where the cooling chamber is located An opening is formed in the portion, and the partition plate is configured by combining a separate upper surface member and a lower surface member, and includes a projecting piece protruding above the upper surface member on 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 thermal insulation as that of the refrigerator body, and its thermal insulation is significantly higher than that of a partition plate made of polystyrene foam, etc. Even if the accumulator is placed on the upper side and the accumulator is increased in size, the cooler can be incorporated into the narrow cooling chamber while inserting the accumulator through the opening of the partition plate from the inside of the freezer compartment. It becomes easy to embed.

  With the above configuration, the refrigerator according to the present invention can improve the heat insulating property of the partition plate between the vegetable compartment and the freezer compartment, and can suppress the cold radiation from the freezer compartment to the vegetable compartment. The refrigerator can be easily built in, and can prevent the occurrence of condensation in the vegetable room and at the same time provide a highly productive refrigerator.

Front view of the refrigerator in Embodiment 1 of the present invention Front view when opening the refrigerator door in the first embodiment 2 is a cross-sectional view taken along line AA in FIG. 2 showing the refrigerator according to the first embodiment. BB sectional drawing of FIG. 2 which shows the refrigerator in Embodiment 1 Half-cut perspective view of the refrigerator in the first embodiment Schematic cross-sectional view for explaining the cold air flow of the refrigerator in the first embodiment Schematic front view for explaining the cold air flow of the refrigerator in the first embodiment The perspective view explaining the cool air flow of the cooling chamber back surface part of the refrigerator in Embodiment 1 The principal part expanded sectional view of FIG. 3 which shows the refrigerator in Embodiment 1 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 Embodiment 1 Schematic sectional view for explaining the cold air flow in FIG. The enlarged front view which shows the vegetable compartment and freezer compartment of the refrigerator in Embodiment 1 The enlarged front view which shows the cooling fan and cooler which were installed in the back of the vegetable compartment and freezer compartment of the refrigerator shown in FIG. The expanded perspective view which shows the back wall part of the vegetable compartment and freezer compartment of the refrigerator in Embodiment 1 The perspective view of the back surface partition wall block which comprises the back wall part of the vegetable compartment of the refrigerator shown in FIG. 16 is an exploded perspective view of a rear partition wall block that constitutes the rear wall portion of the vegetable compartment shown in FIG. The disassembled perspective view of the block which comprises the back wall part of the freezer compartment shown in FIG. The perspective view of the partition plate and cooling fan which partition the storage room and vegetable room of the refrigerator in Embodiment 1 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 off the vegetable compartment and freezer compartment of the refrigerator in Embodiment 1 The perspective view of the opening back part of the partition plate shown in FIG. The perspective view of the opening back surface part of the partition plate which partitions off the vegetable compartment and freezer compartment of the refrigerator in Embodiment 1 Sectional drawing which shows the filling condition of the foam heat insulating material in the opening back part of the partition plate which partitions off the vegetable compartment and freezer compartment of the refrigerator in Embodiment 1 The perspective view which looked at the partition plate which partitions off the vegetable compartment and freezer compartment of the refrigerator in Embodiment 1 from the opening back side The perspective view which shows the vegetable storage case of the refrigerator in Embodiment 1 Control block diagram of the refrigerator in the first embodiment Schematic sectional view of a conventional refrigerator

1st invention is the refrigerator main body comprised by filling foam insulation between inner and outer boxes, the partition plate which partitions the said refrigerator main body into a refrigerator compartment, a vegetable compartment, and a freezer compartment from upper direction, The said vegetables 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 room and the freezer compartment, and includes a cooler having a cooler below the interior and a cooling fan above the refrigerator, and partitioning the vegetable compartment and the freezer compartment Is installed so as to communicate between the inner and outer boxes of the refrigerator body and is filled with the foam insulation together with the refrigerator body and 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 includes a projecting piece projecting above the upper surface member on an opening back 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 thermal insulation as that of the refrigerator main body, and the thermal insulation is much higher than that of the partition plate made of polystyrene foam. The partition plate can be integrated into the refrigerator body when molding the main body, improving productivity, and the cooler built in the lower part of the freezer compartment can be installed from the inside of the freezer compartment even if the accumulator is placed upward. while inserted into the opening of the partition plate can be incorporated into the narrow cooling chamber, cooler also incorporate Ri as Na can be easily, and the thermal conduction is blocked between the upper and lower surfaces of the partition plate, frozen The low temperature of the lower surface member facing the room side is conducted to the upper surface member as it is, and the upper surface member can be prevented from lowering temperature, and the dew condensation due to the lower temperature of the upper surface member can be more effectively prevented. In addition, the partition plate is pressed against the inner box inner wall of the refrigerator body with a jig on the upward projecting piece of the upper surface, and with the partition plate positioned and fixed, foam insulation is applied to the partition plate from the refrigerator body side. It can be integrated by filling, and the partition plate can be accurately integrated into the refrigerator body, and the productivity can be improved. Further, even when the opening is enlarged, deformation during foaming can be minimized.

  According to a second invention, in the first invention, the opening provided in the rear part of the partition plate is configured to be an opening larger than the projected area of the upper surface of the cooler.

  As a result, even if the upper and lower dimension length of the cooler main body is large and its upper end protrudes directly below the partition plate or beyond the partition plate lower surface, it can be incorporated into the cooling chamber without any trouble. It is possible to further increase the capacity of the refrigerator.

According to a third invention, in the first or second invention, a projecting piece projecting downward is provided on an opening back surface portion of the lower surface member constituting the partition plate.

As a result, the partition plate also applies a jig to the projecting piece on the lower surface and directly presses it against the inner wall of the inner box of the refrigerator body from above and below, and foams from the refrigerator body side to the partition plate with the partition plate positioned and fixed. The heat insulating material can be filled and integrated, the partition plate can be accurately integrated with the refrigerator main body, and productivity can be improved. Further, even when the opening is enlarged, deformation during foaming can be minimized.

According to a fourth aspect of the present invention, in the first to third aspects, the partition plate is provided with a space portion that communicates between the inner and outer boxes of the refrigerator main body on the back of the opening. It is set as the structure filled with the foam heat insulating material from between the boxes.

This increases the rigidity and dimensional accuracy of the rear side of the rear opening of the partition plate, and ensures a gap distance between the opening and the piping pipe of the cooler or accumulator even when a vibration source such as a cooling fan exists nearby. Therefore, it is possible to suppress the occurrence of chattering noise and the like, and it is possible to provide a refrigerator with high quietness and high reliability. In addition, since the rigidity of the opening is increased, it is possible to seal the space between the rear portion of the opening rear surface and the cooling chamber constituent member without any gap.

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

  Thereby, the strength of the upward projecting piece itself can be improved, and even if the foaming pressure of the foam heat insulating material filling the space portion is applied, the upward projecting piece is prevented from being bent by the foaming pressure and the opening shape is deformed. Can do.

According to a sixth invention, in the fourth or fifth invention, the space filled with the foam heat insulating material is formed with an upper portion formed by fitting the upper surface member and the lower surface member, and the lower portion projects upwardly from the lower surface member. It is set as the structure formed by making a piece contact the inner case inner wall of a refrigerator main body.

  As a result, a space for filling the opening back portion of the partition plate with the foam insulation is formed, and as described in the sixth aspect, the rigidity and dimensional accuracy of the opening back portion of the partition plate are improved. Good cooling storage and quietness without noise such as chatter can be realized.

A seventh invention is the first to sixth inventions, wherein a rear partition wall is attached to the back of the vegetable compartment to partition the vegetable compartment and the cooling compartment, and cooling on the rear side of the rear partition wall. The connector connection portion of the cooling fan is arranged in the room temperature band.

  As a result, the cooling fan existing in the cooling chamber temperature zone can be electrically connected within the same cooling chamber temperature zone, and this occurs when the lead wire of the cooling fan is drawn out and connected to a part other than the cooling chamber temperature zone. It is also possible to prevent the occurrence of condensation on the lead wires that tend to occur.

According to an eighth invention, in the first to seventh inventions, the rear partition wall body is attached to the back surface of the vegetable compartment to partition the vegetable compartment and the cooling compartment, and the partition plate that partitions the vegetable compartment and the freezing compartment A cooling fan is attached to the upper part, and the cooling fan is positioned on 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 attaching the rear partition wall body, and can also be maintained if the rear partition wall body is attached or detached. It can be a refrigerator with good maintainability.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiment.

(Embodiment 1)
1 is a front view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a front view when the door of the refrigerator according to Embodiment 1 is opened, and FIG. 3 is a diagram illustrating the refrigerator according to Embodiment 1. FIG. 4 is a sectional view taken along the line BB in 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 first embodiment. 7 is a schematic cross-sectional view for explaining the cold air flow of the refrigerator in FIG. 1, FIG. 7 is a schematic front view for explaining the cold air flow of the refrigerator in the first embodiment, and FIG. FIG. 9 is an enlarged cross-sectional view of the main part of FIG. 3 showing the refrigerator in the first embodiment, and FIG. 10 is a schematic cross-sectional view for explaining the cold air flow in FIG. FIG. 4 shows the main part of FIG. 4 showing the refrigerator in the first embodiment. FIG. 12 is a schematic sectional view for explaining the cold air flow in FIG. 11, FIG. 13 is an enlarged front view showing the vegetable compartment and the freezer compartment of the refrigerator in the first embodiment, and FIG. The enlarged front view which shows the cooling fan and cooler which were installed in the back of the vegetable compartment and freezer compartment of the refrigerator to show, FIG. 15 is an enlarged perspective view which shows the vegetable compartment of the refrigerator in Embodiment 1, and the back wall part of a freezer compartment 16 is a perspective view of a rear partition wall block constituting the rear wall portion of the vegetable compartment of the refrigerator shown in FIG. 15, and FIG. 17 is a rear partition wall constituting the rear wall portion of the vegetable compartment shown in FIG. FIG. 18 is an exploded perspective view of the block constituting the back wall portion of the freezer compartment shown in FIG. 16, and FIG. 19 is a partition plate for partitioning the storage compartment of the refrigerator and the vegetable compartment in the first embodiment. FIG. 20 is a perspective view of a cooling fan, and FIG. 21 is an exploded perspective view of the partition plate and the cooling fan, FIG. 21 is a cross-sectional view showing an opening rear surface portion of the partition plate that partitions the vegetable compartment and the freezer compartment of the refrigerator in the first embodiment, and FIG. 22 is a partition plate shown in FIG. FIG. 23 is a perspective view of the opening back surface portion of the partition plate that partitions the vegetable compartment and the freezer compartment of the refrigerator according to the first embodiment, and FIG. 24 is a vegetable compartment of the refrigerator according to the first embodiment. Sectional drawing which shows the filling condition of the foam heat insulating material in the opening back part of the partition plate which partitions off and a freezer compartment, FIG. 25 is a partition plate which partitions off the vegetable compartment and freezer compartment of the refrigerator in Embodiment 1 from the opening back side. 26 is a perspective view showing a vegetable storage case of the refrigerator in the first embodiment, and FIG. 27 is a control block diagram of the refrigerator in the first embodiment.

  First, the whole structure of a refrigerator is demonstrated.

<Fridge body configuration>
1-6, the refrigerator which concerns on this Embodiment is equipped with the refrigerator main body 1 which opened the front, This refrigerator main body 1 has the outer case 2 mainly using the steel plate as shown in FIG. The inner box 3 is made of a hard resin such as ABS, and a foam heat insulating material 4 such as hard foam urethane filled between the outer box 2 and the inner box 3. The refrigerator main body 1 is divided into a plurality of storage rooms by a partition plate 5.6. The refrigerator main body 1 has a refrigerator compartment 7 at the top, a vegetable compartment 8 at the bottom of the refrigerator compartment 7, and a freezer compartment at the bottom. 9 is arranged, and it is a middle vegetable room 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 opened and closed.

  A machine room 14 is provided in the upper rear region of the refrigerator body 1. The machine room 14 accommodates high-pressure components of the refrigeration cycle such as the compressor 15 and a dryer (not shown) for removing moisture.

  In addition, a cooling chamber 16 that generates cool air is provided on the back surface of the refrigerator body 1. The cooling chamber 16 is formed from the back surface of the freezing chamber 9 to the lower back surface of the vegetable chamber 8, and a back partition wall body 17 is provided between the vegetable chamber 8 and a heat insulating material such as polystyrene foam. Insulated partitions.

A cooler 18 is disposed in the cooling chamber 16, and a cooling fan 19 is disposed above the cooler 18. The cooler 18 is designed so that the width of the cooling chamber 16 is substantially full, and the accumulator 18a (see FIGS. 8 and 20 and the like) is arranged upward to increase the size. The cooling fan 19 forcibly circulates the cool air cooled by the cooler 18 to the refrigerator compartment 7, the vegetable compartment 8, and the freezer compartment 9 to cool each room. For example, the refrigerator compartment 7 is cooled to a temperature that does not freeze the food, usually 1 ° C. to 5 ° C., and the vegetable compartment 8 is cooled to a temperature 2 ° C. to 7 ° C. that is equal to or slightly higher than the refrigerator compartment 7. Further, the freezer compartment 9 is usually cooled to a freezing temperature zone of −22 a ° C. to −15 ° C. for frozen storage, and in some cases, for example, a low temperature of −30 ° C. or −25 ° C. to improve the frozen storage state. Sometimes it cools down.

  The cooling fan 19 is assembled to a partition plate 6 that partitions the vegetable compartment 8 and the freezing compartment 9 as shown in FIG. 19, and in this state, the cooling fan 19 faces the back of the vegetable compartment 8 as shown in FIG. Cold air is blown toward the rear partition wall 17 that is located in the portion and partitions the vegetable compartment 8, thereby bringing strong cold radiation to the lower back of the vegetable compartment.

  The partition plate 6 and the cooling fan 19 are configured as shown in an 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 back side. . The cooling fan 19 is assembled to the upper part of the opening 20, and the cooler 18 of the cooling chamber 16 is located below. In this embodiment, the opening 20 is formed larger than the projected area of the upper surface of the cooler 18 positioned below the opening 20, and a projecting piece 21 protruding downward is formed on the lower surface of the opening rear side edge portion of the lower surface member 6b. Further, upward protrusions 22a are formed on the upper surface so as to protrude above the opening edge of the upper surface member 6a. The partition plate 6 is embedded with a first heater 23 for preventing condensation, such as a sheathed heater, at the bottom of the vegetable compartment in front of the cooling fan 19.

  In the figure, reference numeral 20 denotes a heat insulating shielding wall covering the front and both sides of the opening 20, which is made of foamed polystyrene or the like, and one side piece for a cold air return passage provided in the partition plate 6. A passage opening 26 corresponding to the opening 25 is formed. In addition, a tank installation portion 27 for supplying water to the ice making device provided in the freezer compartment 9 is formed on 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 in a hollow plate shape by combining the upper surface member 6a and the 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. A foam insulation 4 is filled together with the refrigerator body 1 and integrated with the refrigerator body 1. Further, when the partition plate 6 is integrated into the refrigerator main body 1, a jig (not shown) is pressed against the projecting piece 21 and the upward projecting piece 22 a and pressed against the inner wall of the inner box 3 of the refrigerator main body 1 as it is. 6 is positioned and held at a predetermined position, and the refrigerator main body 1 is integrated with the refrigerator main body 1 by filling and foaming the foam heat insulating material 4 between the upper and lower surface members 6a, 6b from the refrigerator main body by filling the refrigerator main body 1 with the foam heat insulating material 4. It is. In this state, since the partition plate 6 divides the cooling chamber 16 in the vertical direction, the opening 20 is provided at the rear thereof, and the upper portion of the cooling chamber where the cooling fan 19 is located and the lower portion of the cooling chamber where the cooler 18 is located. Is in communication.

  Further, as shown in FIGS. 21 to 25, the partition plate 6 forms a space portion 20 a communicating between the inner box 3 and the outer box 2 of the refrigerator main body 1 on the back side portion of the opening 20. A part of the foam heat insulating material 4 is filled and integrated into the space 20 a from between the inner box 3 and the outer box 2 of the refrigerator main body 1. Furthermore, the lower part of the hanging piece 22b from the upward projecting piece 22a provided so as to close the lower part of the space 20a is pressed and fixed to the inner wall 3a of the inner box 3 of the refrigerator body 1.

More specifically, first, the lower surface member 6b constituting the partition plate 6 has a concave portion serving as a space portion 20a for filling foam insulation as shown in FIG. The part has a hanging piece 22 b that hangs down along the inner wall 3 a of the inner box 3. And 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 fire insulation is performed between them. A space 20a for filling the material is formed.

  On the other hand, a plurality of holes 20b are arranged in the back wall 3a portion of the inner box 3 facing the space part 20a, and the space part 20a, the inner box 3 of the refrigerator main body 1 and the outer side through the hole 20b. The box 2 communicates with a part of the foam heat insulating material 4 between the inner box 3 and the outer box 2 of the refrigerator body 1.

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

  In FIG. 22, reference numeral 22d denotes a plurality of protruding ribs formed integrally with the upward projecting piece 22a of the lower surface member 6b toward the foam heat insulating material filling space, and the downward projection of the upper surface member 6a constituting the space portion 20a. A gap T (see FIG. 24) for foaming heat insulating material flow is formed between the piece 22c. 13 is a sealing material for sealing the space portion 20a for filling the foam insulation material, 18b is a refrigerant circulation pipe, 3e is a packing disposed between the downward projecting piece 22c and the back wall 3a (in the non-compressed state, the back for display). Display to the outside of the wall 3a).

  In the lower space of the cooler 18 described above, a defrost heater 28 for defrosting the frost and ice adhering to the cooler 18 and its periphery is disposed as shown in FIG. A drain pan 29 for receiving defrost water generated at the time of defrosting is disposed below 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 chamber through a drain tube (not shown). It is like that.

  Next, the cold air circulation configuration will be described.

<Cooling air circulation path configuration>
As shown in FIG. 9 and the like, the cooling chamber 16 that generates the cold air has an opening downstream of the cooling fan 19 in the cooling chamber cold air conveyance path 30 formed between the rear partition wall body 17 and the refrigerator main body 1. Then, the cool air is blown into each chamber through the cooling chamber cool air conveyance path 30.

  The upper part of the cooling chamber cool air conveyance path 30 is a refrigerated cold air passage 32 formed at a substantially central portion of the back surface of the refrigeration chamber 7 through a refrigeration chamber damper 31 as shown in FIGS. Communicated with. As shown in FIGS. 7 and 8, a refrigerated cold air return passage 33 from the refrigeration chamber 7 is installed adjacent to the side of the refrigerated cold air passage 32, and the lower part thereof communicates with the vegetable compartment 8 and the cooling compartment 16. Yes.

  As shown in FIG. 7, the refrigerating chamber 7 is provided with a refrigerating / cooling air inlet 35 of a refrigerating / refrigerating air passage 32 at an appropriate position above the rear wall, and the refrigerating / refrigerating air that opens to the refrigerating / refrigerating air return passage 33 is provided at a lower position on the inner wall. A return port 36 is provided, and the cold air from the cooling chamber 16 is supplied to the refrigerating / refrigerating air passage 32 via the refrigerating chamber damper 31, and is supplied from the refrigerating / refrigerating air inlet 35 to the refrigerating chamber 7. On the other hand, the cold air after cooling in the refrigerating room is supplied from the refrigerating cold air return port 36 to the vegetable room 8 through the refrigerating cold air return passage 33 and circulates to the cooling room 16. As will be described later, the refrigerating chamber 7 is provided with a partial chamber at the lower portion thereof. As shown in FIG. 8, the partial chamber has a partial chamber damper 31a, a partial chamber cold air passage 32a, and a partial chamber cold air inlet. It is supplied via 35a.

In this embodiment, as is clear from FIG. 8, the cooling chamber cold air conveyance path 30, the refrigerated cold air passage 32, and the partial chamber cold air passage 32 a are provided on the back surface of the rear partition wall body 17 and the partition plate 6. And a return passage 38 for connecting the refrigerated cold air return passage 33 to the vegetable compartment 8 and the cooling chamber 16. The refrigeration chamber damper 31 is provided in the forward passage 37. .

  A communication passage 39 is formed between the refrigerated cold air return passage 32 and the refrigerated cold air return passage 33 so that a part of the low temperature cold air flowing through the refrigerated cold air return passage 32 is mixed into the refrigerated cold air return passage 33. It is configured.

  Further, as shown in FIG. 8, a cold air return duct 40 extending downward from the cooling fan 19 and the cooler 18 of the cooling chamber 16 is provided on the back surface of the freezer compartment 9. The upper portion communicates with the vegetable compartment 8 via 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 is opened below the cold air via the cold return duct 40. To the cooling chamber 16.

  On the other hand, as shown in FIG. 10, the freezer compartment 9 has a freezer cold air inlet 42 communicating with the lower part of the cooling room cold air conveying path 30 on the back of the rear partition wall 17 at the upper part of the rear wall 41 and the cooling room at the lower part. A freezing cold air return port 43 is formed in the lower portion of the cooling chamber 16, and the cold air from the cooling chamber 16 is supplied from the lower portion of the cooling chamber cold air conveyance path 30 through the freezing cold air inlet 42. It circulates to the cooling chamber 16 through the cold air return port 43.

<Vegetable room configuration>
As shown in FIGS. 7 and 12, the vegetable room 8 is a portion closer to the left or right of the back wall, in this embodiment, the lower portion of the right side as viewed from the front, and the return passage 38 portion from the refrigerated cold return passage 33 An open vegetable cold air inlet 44 is provided, and a vegetable cold air return port 46 that opens to the return passage 38 and leads to the cooling chamber 16 is provided at a position substantially above the vegetable cold air inlet 44.

  Furthermore, in this vegetable compartment 8, as shown in FIG. 12, a vegetable compartment passage section 50 is provided in the vertical direction at the front position of the cold air return passage 38 using the rear partition wall 17 on the back of the vegetable compartment 8. It is formed vertically. The vegetable chamber passage portion 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 a vegetable chamber fan comprising a propeller fan or the like at a portion communicating with the vegetable cold air inlet 44. 53 is arranged.

  Furthermore, the vegetable compartment 8 has a first passage 47a formed on the upper surface of the vegetable compartment so as to be connected to the vegetable compartment passage section 50 and the vegetable cold air return port 46. One vegetable cold air inlet 47 is provided.

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

FIG. 17 is an exploded perspective view of the rear partition wall body 17 forming the vegetable compartment passage portion 50. The vegetable compartment passage portion 50 has a front partition plate 17a and a rear portion that are polymerized via a polystyrene foam (not shown). It is formed between the partition plate 17b, and its upper end portion 50a is open to the vegetable cold air return port 46 as shown in FIG. Further, as described above, the vegetable room fan 53 is incorporated in the lower part of the vegetable room passage section 50, and its outlet 54 is opened in the vegetable room 8, so that the cold air from the vegetable cold air inlet 44 and the First vegetable cold air inlet 47 and second vegetable cold air inlet 5
The vegetable room cold air from 1 is blown into the vegetable room 8. The air outlet 54 of the vegetable compartment fan 53 opens toward the rear surface of a lower vegetable storage case 49a, which will be described later, and the lower rear portion of the lower vegetable storage case 49a facing the vegetable compartment fan 53 is located forward in the lower part. It is configured so that the cold air from the vegetable compartment fan 53 intensively flows into the lower space of the lower vegetable storage case 49a.

  Further, as shown in FIG. 10, a second heater 56 for preventing condensation, such as a sheathed heater, is embedded in the surface of the back partition wall 17 facing the cooling chamber 16. This second heater 56 is installed in a low temperature cooling chamber temperature zone that is positioned opposite to the upper portion of the cooling chamber 16 and below the refrigerator compartment damper 31 that opens and closes the cool air from the refrigerator compartment 16 to the refrigerator compartment 7. Has been. That is, the second heater 56 is provided in a portion facing the cooling chamber temperature zone between the cooling chamber 16 and the refrigerating chamber damper 31 in the rear partition wall body 17 constituting the entire rear surface of the vegetable chamber 8. Downsizing.

  Further, the cooling fan 19, the first heater 23 in the partition plate 6, the second heater 56 in the rear partition wall body 17, etc. A connector connecting portion (box 57 (see FIG. 14)) of the electric member is installed, and electrical connection is made in the cooling chamber cold air conveyance path 30 that becomes this cooling chamber temperature zone.

  The vegetable compartment 8 is provided with a vegetable storage case 48 as shown in FIG. 11 and the like. The vegetable storage case 48 includes a lower vegetable storage case 49a placed on the frame of the door 11 and a lower vegetable. The upper vegetable storage case 49b is placed on the storage case 49a. The vegetable compartment 8 is provided with a space between the vegetable storage case 48, 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 the cold air from the vegetable cold air inlet 44 flows. Is configured.

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

  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 opposite to the vegetable cold air inlet 44, in this embodiment, the right side portion is made deeper by one step to make a plastic bottle. And a non-vegetable storage section 59 (hereinafter referred to as a storage section such as a plastic bottle). In addition, this container part 59 for PET bottles etc. is good also as dividing the inside of the vegetable compartment 8 back and forth, and making the front side part a container part etc. for PET bottles.

<Refrigerator configuration>
As shown in FIG. 4 and the like, the refrigerator compartment 7 includes a plurality of storage shelves 60 and a partial chamber 61 that can be cooled to a semi-refrigeration temperature zone. A mouth 36 (both see FIG. 7) is provided. An operation unit 62 for setting the internal temperature of each room, ice making, rapid cooling, and the like is disposed at an appropriate side wall of the refrigerator compartment 7.

<Freezer configuration>
Also. As already described with reference to FIG. 10, the freezer compartment 9 is formed with a freezer cold air inlet 42 communicating with the lower part of the cooler compartment air passage 30 at the back of the rear partition wall body 17 at the upper part of the rear wall, and the lower part of the rear wall. A freezing cold air return port 43 communicating with the freezing chamber 9 is formed. Although not shown in the structural diagram, a freezer damper is also incorporated at an appropriate position in the passage from the cooling chamber 16 to the freezer compartment 9. The freezer compartment 9 is also provided with a freezer compartment 63 placed 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 freezer compartment 63. It has been incorporated.

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

<Control configuration>
FIG. 27 shows a control block diagram in the refrigerator of the present embodiment, 65 is a refrigerator temperature detecting means, 66 is a vegetable room temperature detecting means, 67 is a freezer temperature detecting means, both are formed of a thermistor, They are installed at appropriate places in the refrigerator compartment 7, the vegetable compartment 8, and the freezer compartment 9, respectively. Reference numeral 68 denotes a control unit that performs overall control of the entire refrigerator. The control unit 68 is configured by a microcomputer or the like, and the refrigerator compartment according to control software built in advance based on outputs from the refrigerator compartment temperature detecting means 65 and the freezer compartment temperature detecting means 67. The damper 31 and freezer compartment damper 34 are controlled to open and close, and the compressor 15 and the cooling fan 19 are driven to control each chamber to a set temperature. Further, the controller 68 controls the operation of the vegetable compartment fan 53 incorporated in the vegetable compartment passage portion 50 of the vegetable compartment 8 based on outputs from the refrigerator 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 refrigerator compartment temperature detecting means 65 and the vegetable compartment temperature detecting means 66 detects a temperature higher than the set temperature. Furthermore, the control unit 68 drives the first and second heaters 23 and 56 based on the output from the vegetable room temperature detecting means 66.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

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

  The refrigeration cycle is operated by a signal from the control unit 68 according to the temperature set 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 to some extent by a condenser (not shown), and further, refrigerant piping (not shown) disposed on the side and rear surfaces of the refrigerator and the front opening of the refrigerator. Etc.), while condensing and liquefying while preventing condensation in the refrigerator, it reaches a capillary tube (not shown). Thereafter, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 15 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 18 in the cooling chamber. Here, the refrigerant in the cooler 18 evaporates, and cool air for cooling each storage chamber is generated in the cooling chamber 16 having 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 by the cooling fan 19 from the cooling chamber cold-air conveyance path 30 to the refrigerator compartment 7 and the freezer compartment 9, and the cold air supplied to the refrigerator compartment 7 cools the refrigerator compartment 7. After that, it is supplied to the vegetable room 8 and each room is cooled to the set temperature. Then, the cold 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. In addition, the cold air supply to each of the chambers is performed by the control unit 68 operating / stopping the compressor 15 and the cooling fan 19 based on the temperatures detected by the refrigerator temperature detecting means 65 and the freezer temperature detecting means 67, and the refrigerator temperature damper 31. The freezer damper 34 is controlled to be opened and closed so that each chamber is maintained in a set temperature range.

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

The vegetable room 8 is cooled by the cold air after cooling from the refrigerated cold air return passage 33 being supplied from the vegetable cold air inlet 44 provided in the cold air return passage 38 as shown in FIG. This cold air gently flows into the vegetable compartment 8 from the vegetable cold air inlet 44 via 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 It flows through the space between the inner peripheral wall of the chamber 8, and the vegetables and plastic bottles stored in the vegetable storage case 48 are indirectly cooled from the outer periphery of the case, and the refrigerated cold air return passage 33 is provided from the vegetable cold air return port 46. It circulates from the cool air return duct 40 to the cooling chamber 16 via.

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

  The cold 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 storage case 49a and the upper vegetable storage 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 the wind pressure, and returns from the vegetable cold air return port 46 to the cooling chamber 16 via the return passage 38 and circulates. At that time, cool air other than the cool air returning to the cooling chamber 16 is circulated from the first vegetable cold air inlet 47 and the second vegetable cold air inlet 51 provided in the upper portion of the vegetable chamber 8. The lower vegetables in the vegetable compartment 8 are again sucked into the vegetable compartment fan 53 from the upper opening of the vegetable compartment passage portion 50 communicating with these passages 51a and from the outlet 54 of the vegetable compartment fan 53 again. It is supplied toward the storage case 49a and diffuses or circulates in the vegetable compartment 8.

  Next, prevention of condensation in the vegetable room 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 and the freezer compartment 9 located below, and the vicinity of the lower part of the back surface is likely to be lowered in temperature as in the past. . In particular, the cold radiation from the cooling chamber 16 is strong, and the cooling radiation from the cooling chamber 16 itself to the refrigerator compartment damper 31 as well as the cooling chamber 16 itself is the cooling chamber cold air conveyance path 30 zone from the cooling chamber 16 itself. The cooling chamber temperature region is the same as that in the cryogenic temperature zone 16, and strong cold radiation is received at the portion facing the cooling chamber temperature zone up to the refrigerator compartment damper 31, and this portion is easily lowered in temperature.

  In this refrigerator, the temperature is lowered by the cold air that diffuses or circulates in the vegetable compartment 8 by driving the vegetable compartment fan 53 and suppresses the temperature reduction. To do. That is, the cold air in the vegetable room 8 is diffused and / or circulated by the vegetable room fan 53, and this diffused and / or circulated cold air is located below and below the cold radiation from the cooling room temperature zone located at the back of the vegetable room 8. The temperature in the lower part of the back of the vegetable room, which tends to be lowered by the cold radiation from the freezer room 9, is diffused in the vegetable room 8, the temperature in the vegetable room 8 is lowered to cool the inside of the vegetable room 8, and at the same time, near the lower part of the back of the vegetable room Suppresses extremely low temperatures and temperature differences and prevents condensation.

  In this way, local temperature reduction in the vegetable room 8 is suppressed, but if this state continues for a long time, the diffusion or circulation of the cold air by the vegetable room fan 53 cannot suppress the temperature reduction and condensation occurs. May drop to an easy temperature.

In such a case, in this refrigerator, the control unit 68 causes the second heater 56 provided in a portion facing the cooling room temperature zone on the back of the vegetable room to generate heat. Thereby, the temperature fall of the vegetable room back lower part vicinity by the cold radiation from a cooling room temperature zone is suppressed reliably, and the situation which leads to dew condensation can be avoided. In particular, in this embodiment, the first heater 23 is provided in the partition plate 6 that partitions the vegetable compartment 8 and the freezer compartment 9, and the first heater 23 is also heated together with the second heater 56. Thus, it is possible to reliably suppress the cold radiation of the vegetables, and to efficiently prevent the lowering of the temperature in the vicinity of the lower part of the back of the vegetable room, thereby preventing the deterioration of the vegetables due to the occurrence of condensation.

  In addition, the second heater 56 is limited to the cooling room temperature zone from the cooling chamber 16 to the refrigerator compartment damper 31 in the rear partition wall body 17 serving as the back wall of the vegetable room 8, and thus is small. Therefore, it is possible to reliably prevent the temperature of the portion from being lowered by raising the temperature of the portion that is likely to be lowered while minimizing the cost increase and power consumption, and to efficiently suppress the occurrence of dew condensation.

  As described above, this refrigerator prevents condensation due to local low temperatures in the vegetable compartment 8, so the size of the cooler 18 for generating cold air is increased so that the cooling compartment 16 spans the freezer compartment 9 and the vegetable compartment 8. Even in a large-capacity large-sized refrigerator, condensation due to cold radiation from the cooling chamber 16 can be suppressed. Therefore, in the refrigerator in the whole area from the small capacity small refrigerator to the large capacity large refrigerator, it is possible to suppress the vegetable deterioration due to the dew condensation water generated by the cold radiation from the cooling chamber 16 and cool and store the vegetables in a good state. It becomes possible. In addition, this refrigerator is a middle vegetable room type refrigerator in which the vegetable room 8 is provided in the upper and lower central parts of the refrigerator body 1 between the refrigerator compartment 7 and the freezer compartment 9, so that condensation occurs as described above. This is effective because it is possible to improve the usability of a user who is mainly used for taking in and out vegetables and the like while preventing and storing the vegetables in a good condition.

  Next, the feature of the present invention, that is, the suppression of the low temperature of the partition plate 6 which is one of the causes of the occurrence of condensation in the vegetable room 8 and the easy attachment of the cooler 18 to the cooling room will be described.

  First, the partition plate 6 that divides the vegetable compartment 8 and the freezer compartment 9 is mounted so as to communicate between the inner and outer boxes 2 and 3 of the refrigerator body 1 and the foam insulation 4 together with the refrigerator body 1 when the refrigerator body is molded. Since this is integrated with the refrigerator main body 1, the partition plate 6 has a high heat insulating property such as urethane foam like the refrigerator main body 1. And the partition plate 6 can be integrated with the refrigerator main body 1 at the time of refrigerator main body shaping | molding. Therefore, for example, compared with the case where the partition plate 6 is retrofitted after molding the refrigerator body as a heat insulating partition plate using foamed polystyrene or the like, the heat insulating property is much superior, and the vegetable compartment 8 The amount of cold radiation from the freezer compartment 9 that causes the occurrence of condensation can be greatly reduced, which can greatly contribute to the prevention of condensation. In addition, a process for retrofitting the partition plate 6 is not required, and productivity is improved. In addition, the thickness of the partition plate 6 itself can be reduced, and the capacity of the vegetable compartment 8 or the freezer compartment 9 can be increased accordingly.

  Further, since the partition plate 6 is configured by combining the independent upper surface member 6a and the lower surface member 6b, respectively, heat conduction is performed between the upper surface member 6a and the lower surface member 6b of the partition plate 6. Can be suppressed. Thereby, it is possible to prevent the low temperature of the lower surface member 6b facing the freezer compartment from being transferred to the upper surface member 6a as it is and lowering the temperature of the upper surface member 6a. Condensation occurs due to the lower temperature of the upper surface member 6a. Can be more efficiently prevented.

  In addition, in this refrigerator, since the connector connecting portion 57 of the cooling fan 19 is arranged in the cooling chamber temperature zone on the back side of the vegetable compartment 8, the lead wires of the cooling fan 19 existing in the cooling chamber temperature zone are the same. Electrical connection can be made within the temperature zone of the cooling chamber, and condensation at the lead wire lead-out portion that tends to occur when the lead wire of the cooling fan 19 is drawn out to a portion other than the cooling chamber temperature zone and connected. Occurrence can also be prevented.

Further, the partition plate 6 is integrated with the refrigerator main body 1 when the refrigerator main body is molded, so that the rear portion of the partition plate 6 divides the cooling chamber 16 located on the back of the vegetable compartment 8 and the freezer compartment 9 vertically. However, since the opening 20 is provided in the rear part, even if the partition plate 6 is integrated when the refrigerator main body 1 is molded, the cooling chamber 16 is vegetables from the back of the freezer compartment as in the case where it is retrofitted. It will be 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 removes the back wall of the freezer compartment 9 and is incorporated into the cooler chamber 16 from the inside of the freezer compartment 9 in that state, but the cooler 18 is formed so that the width of the cooler chamber 16 is almost full. At the same time, even if the accumulator 18a is disposed upward, the accumulator 18a disposed above can be incorporated into the narrow cooling chamber 16 while being inserted through the opening 20 of the partition plate 6, and the cooler 18 can be incorporated. It can be made easier.

  Next, since the opening 20 is larger than the projected area of the upper surface of the cooler 18, the vertical dimension of the main body portion 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. Even in the case where the upper part of the cooler 18 protrudes upward, the upper part of the cooler 18 can be inserted into the narrow cooling chamber 16 while being inserted into the opening 20 of the partition plate 6, and the cooler 18 can be easily assembled. It can be done.

  And by these things, even if it is a case where a large-sized cooler in which the accumulator 18a of the cooler 18 or the main body part upper part straddles the partition plate 6 and is located to the vegetable room back is used, it can respond to this. This makes it possible to increase the size of the refrigerator.

  In addition, by making the opening 20 of the partition plate 6 larger than the projected area of the upper surface 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. The fan 19 flows smoothly. Thereby, the flow resistance of the cold air can be reduced, and the cold air circulation with less loss can be realized.

  The opening 20 may be set to be smaller than the projected area of the upper surface of the cooler 18, and in this case, the cool air flowing through the cooling chamber 16 is surely prevented from passing through the outer periphery of the cooler 18. The cooling efficiency can be improved by passing through the cooler 18 to increase the heat exchange rate, and the relationship between the opening 20 and the upper surface projected area of the cooler 18 can be selected according to the characteristics of the refrigerator to be applied. That's fine.

  On the other hand, the partition plate 6 is provided with an upward projecting piece 22a projecting upward from the upper surface member 6a and a projecting piece 21 projecting downward from the lower surface member 6b from the back surface portion of the opening 20. 1, the partition plate 6 partitions the partition plate 6 by pressing a jig (not shown) against the projecting piece 21 and / or the upward projecting piece 22 a and pressing it against the inner wall 3 of the refrigerator main 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 between the upper and lower surface members 6a and 6b from the refrigerator main body 1 side, and can be integrated at the same time as the refrigerator main body 1 is molded. To do.

  In addition, the rear partition wall body 17 constituting the rear surface of the vegetable compartment 8 is retrofitted after molding the refrigerator main body, and the cooling fan 19 is attached to the upper part of the partition plate 6 and positioned on the back 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 attaching the rear partition wall body 17, and if the rear partition wall body 17 is attached or detached, the cooling fan 19 can be attached. Maintenance can also be performed, and the refrigerator can be easily assembled and maintained. The accumulator 18a of the cooler 18 performs the welding of the refrigerant pipe before mounting the rear partition wall body 17, and has an advantage of facilitating the welding.

Further, the opening 20 of the partition plate 6 to be covered together with the cooling fan 19 by the attachment of the rear surface partition wall body 17 includes the upward projecting piece 22a and the upper surface member 6a of the lower surface member 6b constituting the back surface portion of the opening 20. Since the space part 20a is formed between the downward projecting piece 22c and the foamed heat insulating material 4 is filled in the space part 20a, the dimensional accuracy and rigidity of the part can be increased. Therefore, even if the cooling fan 19 and the cooler 18 exist nearby by filling the space 20a behind the opening 20 with the foam heat insulating material 4 to increase the rigidity of the back surface of the opening 20 of the partition plate 6. Since the gap distance between the opening 20 and the piping pipe of the cooler 18 and the accumulator 18a can be provided with certainty, it is possible to suppress the occurrence of chattering noise 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 rear partition wall body 17 attached so as to cover the opening 20 of the partition plate 6 and the rear wall 3a of the inner box 3 and the peripheral portion of the opening 20 of the partition plate 6 is a gap. Without being leaked into the vegetable compartment 8, part of the low-temperature cold air in the cooling compartment 16 flowing through the opening 20 can be prevented. Therefore, the freezing of the vegetables etc. which arise when the low temperature cold air from the cooling chamber 16 flows into the vegetable chamber 8 directly can be prevented, and the good cooling preservation | save of vegetables can be ensured.

  Moreover, since the upward projecting piece 22a of the lower surface member 6b that forms the opening 20 of the partition plate 6 has a configuration 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 can prevent more reliably that a clearance gap etc. arise in the opening 20 periphery part of the partition plate 6, and can prevent the freezing of the vegetable by the low temperature cold air leak more reliably.

  In addition, in this embodiment, the upward projecting piece 22a that forms the space portion 20a for filling the foam heat insulating material is provided with a hanging piece 22b below the space portion 20a, and the hanging piece 22b is provided in the inner box 3 Is fixed to the back wall 3a of the inner box 3 by being fixed to the reinforcing plate 3c applied from the back side of the back wall of the inner wall 3 so that the pressure contact between the hanging piece 22b and the back wall 3a of the inner box 3 is strong. Can be. Thereby, even if the vibration of the cooling fan 19 mounted on the partition plate 6 is transmitted to the partition plate 6, the drooping piece 22 b is surely prevented from slightly vibrating with respect to the inner wall 3 a of the inner box 3. be able to. Therefore, the quietness as a refrigerator can be improved more.

  Further, the press-contact of the upward projecting piece 22a of the lower surface member 6b to the inner wall 3 of the inner wall 3a prevents the foam heat insulating material 4 filled in the space portion 20a together with the sealing material 13 provided above and below the space portion 20a. As a result, deterioration of dimensional accuracy due to the protrusion of the foam heat insulating material 4 and cold air leakage due to this can be surely prevented, which is effective.

  As described above, this refrigerator can suppress the low temperature of the partition plate 6 that becomes the bottom of the vegetable compartment, and at the same time, can improve the incorporation of the cooler 18 into the cooling chamber 16 and increase the productivity. Furthermore, since this refrigerator has various effects also about vegetable room cooling, this is demonstrated below.

  First, since the vegetable room fan 53 provided in the vegetable room 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 room Vegetables that are apt to be generated when cold air diffused or circulated by the fan 53 enters the lower vegetable storage case 49a and the upper vegetable storage case 49b and flows between the vegetables, and the cold air flows between the vegetables. Thus, the vegetables can be stored in a cool and fresh state by preventing the deterioration of drying.

In particular, in this embodiment, the first vegetable cold air suction port 47 that also serves as a cold air suction port that diffuses or circulates in the vegetable compartment 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. It flows to the 1st vegetable cold air suction inlet 47 and the 2nd vegetable cold air suction inlet 51, can prevent the drying deterioration of a vegetable more reliably, and can preserve | save a vegetable in a fresh and favorable state by cooling. This can be further increased by bringing the upper opening edge of the upper vegetable storage case 49 close to the partition plate 5 that also serves as the vegetable room ceiling, and more effectively if a cover that covers the upper surface opening is provided. be able to.

  In addition, since the vegetable compartment fan 53 is located below the upper opening edge of the vegetable storage case 48 constituted by the lower vegetable storage case 49a and the upper vegetable storage case 49b, it is blown from the vegetable chamber fan 53. The cold air diffuses or circulates in the vegetable storage case 48, particularly in the vicinity of the bottom surface and lower outer periphery of the lower vegetable storage case 49a. Therefore, the cold air diffused and / or circulated by the vegetable compartment fan 53 is more difficult to enter the vegetable storage case 48, and the dry deterioration of the vegetables caused by the cold air entering and circulating in the vegetable storage case 48 from this point. Can be reliably prevented, and the vegetables can be stored in a cooler and fresher state.

  The vegetable compartment 8 has a vegetable compartment passage portion 50 communicating with the vegetable cold air inlet 44, and a vegetable compartment fan 53 is provided below the vegetable compartment passage portion 50. By exhibiting such a function, cold air can be efficiently taken into and diffused and / or circulated into the vegetable compartment 8, whereby the occurrence of condensation in the vegetable compartment 8 can be more efficiently suppressed.

  In addition, in this embodiment, the vegetable storage case 48 divides the inside of the lower vegetable storage case 49a left and right, and is provided with a storage portion 59 such as a PET bottle or a pack on one side thereof. Since the vegetable room fan 53 is provided on the back part of the vegetable room on the side of the unit 59 and the cold air in the vegetable room is diffused or circulated toward the storage unit 59 such as the plastic bottle, the vegetable room fan 53 The cold air circulates intensively around the PET bottle storage section 59, so that the PET bottles and packs stored in the PET bottle storage section 59 can be efficiently cooled. In particular, drinking water such as PET bottles and packs stored in the PET bottle storage 59 is effective because it has a larger heat capacity than vegetables and is difficult to cool. The rise can be efficiently suppressed.

  In this embodiment, since the first vegetable cold air inlet 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 storage portion 59 side such as a plastic bottle, The cold air from the vegetable room fan 53 to the vegetable cold air return port 46 can be circulated more efficiently and intensively to the storage part such as a plastic bottle, which is effective.

  In addition, since the second vegetable cold air suction port 51 that is also another suction port for circulating the cold air in the vegetable room 8 is provided in the vegetable room fan 53 and the upper part of the vegetable room at a substantially diagonal position, The cold air from the vegetable compartment fan 53 diffuses and circulates through the bottom portion of the container portion 59 of the vegetable storage case 48 forward through the bottom portion 59 of the vegetable storage case 48 while obliquely passing through the vegetable compartment 8 and circulates. Since it flows to the vegetable cold air inlet 51, the lower vegetable storage case 49a and the upper vegetable storage case are prevented while the cold air is prevented from entering the vegetable room case composed 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 around the outer periphery of the vegetable case 49b, and vegetables, plastic bottles and the like can be cooled effectively.

Further, in this refrigerator, a communication passage 39 is formed between the refrigerated cold air return passage 32 and the refrigerated cold air return passage 33, and when the vegetable compartment fan 53 rotates, the suction force of the vegetable compartment fan 53 causes the low temperature in the refrigerated cold air forward passage 32 to be low. Fresh cold air is mixed into the refrigerated cold air return passage 33 and supplied from the vegetable cold air inlet 44 into the vegetable compartment 8 through the return passage 38. That is, the vegetable room 8 is cooled by the return cold air having a relatively high temperature after cooling from the cold room 7, but in this refrigerator, the cold air after cooling the cold room is rotated by the rotation of the vegetable room fan 53. The vegetable room 8 is cooled with cold air that has been cooled by mixing low temperature fresh cold air. Therefore, the vegetable compartment 8 can be effectively cooled, and the vegetable compartment 8 is reliably cooled even when the cooling load condition is bad, for example, when many vegetables, plastic bottles, etc. are temporarily stored. be able to. In addition, the amount of low-temperature fresh cold air taken in through the communication passage 39 can be increased by increasing the number of rotations of the vegetable compartment fan 53, and a large amount of room temperature PET bottles having a large heat capacity are stored in summer. Even at times, this can be reliably cooled. 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 stored in a cooled state in a good state.

  The vegetable compartment fan 53 operates 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 circulates, in this embodiment, since it controls also based on the detection temperature of the vegetable compartment temperature detection means 66 provided in the vegetable compartment 8, the temperature of the refrigerator compartment 7 is high, and 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 diffuses and / or circulates cold air in the vegetable compartment 8. Therefore, when the temperature of the vegetable room becomes high and a large temperature difference is caused by the cold radiation from the cooling chamber 16 and the condition is likely to cause dew condensation, the vegetable room fan 53 rotates to eliminate this and effectively generate dew condensation. Can be prevented.

  If the temperature of the vegetable room 8 becomes higher than the second set temperature set to a temperature slightly higher than the set temperature in spite of the rotation of the vegetable room fan 53, the vegetable room fan The number of rotations of 53 can be increased to increase the diffusion or circulation of the cold air, and the amount of fresh cold air taken in can be increased and the vegetable room 8 can be reliably cooled. Therefore, the lack of cooling in the summer can be resolved, and good cooling storage of vegetables and the like can be reliably realized to increase the reliability of the refrigerator.

  Although the embodiment of the present invention has been described above, the configuration described in the above embodiment is 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 improves the heat insulation of the partition plate between the vegetable compartment and the freezer compartment, can suppress the cold radiation from the freezer compartment to the vegetable compartment, and incorporate the cooler into the cooling compartment Since it is possible to provide a highly productive refrigerator while preventing the occurrence of condensation in the vegetable room, it can be widely applied to refrigerators for business use as well as home use.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 3a Back wall 3b Mounting hole 3c Reinforcement plate 3d Fastening tool 3e Packing 4 Foam insulation material 5,6 Partition plate 6a Upper surface member 6b Lower surface member 7 Refrigeration room 8 Vegetable room 9 Freezing room 10, 11 , 12 Door 13 Sealing material 14 Machine room 15 Compressor 16 Cooling room 17 Back partition wall 18 Cooler 18a Accumulator 18b Refrigerant pipe 19 Cooling fan 20 Opening 20a Space part 20b Hole 21 Projection piece 22a Upward projection piece 22b Drooping piece 22c Downward projecting piece 22d Rib 23 First heater 24 Insulation barrier 25 Opening for cold air return passage 26 Passage opening 27 Tank installation part 28 Defrost heater 29 Drain pan 30 Cooling room cold air conveyance path 31 Refrigeration room damper 32 Refrigerated cold air forward passage 33 Refrigerated cold air return passage 34 Freezer compartment damper 35 Refrigerated cold air inlet 36 Refrigerated cold air return Mouth 37 Outward passage 38 Return passage 39 Communication passage 40 Cold air return duct 41 Back wall body 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 inlet 47a First passage 48 Vegetable storage case 49a Lower vegetable storage case 49b Upper vegetable storage case 50 Vegetable room passage 51 Second vegetable cold air inlet 51a Second passage 52 Second cold air circulation path 53 Vegetable room fan 54 Air outlet 55 Inclined surface 56 First Second heater 57 Connector connection 58 Case divider 59 Non-vegetable storage (PET bottle storage)
60 Storage Shelf 61 Partial Room 62 Operation Unit 63 Freezer Room Case 64 Ice Making Device 65 Cold Room Temperature Detection Means 66 Vegetable Room Temperature Detection Means 67 Freezer Room Temperature Detection Means 68 Control Unit

Claims (8)

A refrigerator main body configured by filling a foam heat insulating material between inner and outer boxes, a partition plate that partitions the refrigerator main body into a refrigerator compartment, a vegetable compartment, and a freezer compartment from above, and the vegetable compartment and the freezer compartment A partition plate that is formed on the back surface of the refrigerator main body so as to straddle the partition plate and that includes a cooler below the interior and a cooling fan having a cooling fan above the interior, and the partition plate that partitions the vegetable compartment and the freezer compartment・ Attached so as to communicate between the outer boxes and filled with the refrigerator main body together with the foam heat insulating material and integrated with the refrigerator main body, and an opening is formed in the rear part of the partition plate where the cooling chamber is located . A refrigerator comprising a combination of an upper surface member and a lower surface member, and a protruding piece projecting above the upper surface member on an opening back surface portion of the lower surface member . The refrigerator according to claim 1, wherein the opening provided in the rear part of the partition plate is an opening larger than a projected area of the upper surface of the cooler. The refrigerator of Claim 1 or 2 provided with the protrusion piece which protrudes below in the opening back surface part of the lower surface member which comprises a partition plate. Partition plate provided with a space portion communicating between the inner and outer boxes of the refrigerator body in the opening rear portion, one from among the inner and outer boxes of the refrigerator body to the space portion of claim 1 to 3 filled with foam insulation The refrigerator of Claim 1. The refrigerator of Claim 4 which provided the rib which protrudes in the space part side of an opening back surface part in the upward protrusion piece of the lower surface member which comprises the opening of a partition plate. The space portion filled with the foam heat insulating material is formed by fitting the upper portion thereof by fitting the upper surface member and the lower surface member, and the lower portion is formed by bringing the upward protruding piece of the lower surface member into contact with the inner wall of the refrigerator main body. Item 6. A refrigerator according to item 4 or 5 . A rear partition wall is attached to the back of the vegetable compartment to partition the vegetable compartment and the cooling compartment, and a connector connection portion of a cooling fan is disposed in the cooling chamber temperature zone on the back side of the rear compartment wall. The refrigerator of any one of 1-6 . A rear partition wall is attached to the back of the vegetable compartment to partition the vegetable compartment from the cooling compartment, and a cooling fan is attached to the upper part of the partition plate separating the vegetable compartment and the freezing compartment, and the cooling fan is attached to the back of the vegetable compartment. Refrigerator according to any one of claims 1 to 7 which is configured to be located.

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