JP6778861B2 - refrigerator - Google Patents

Description

The present invention relates to a refrigerator in which a vegetable compartment is provided in a substantially central portion above and below the main body of the refrigerator.

Generally, a household refrigerator is configured by providing a plurality of storage chambers having different temperature bands, for example, a refrigerator compartment, a vegetable compartment, and a freezing chamber in the refrigerator body. Among such refrigerators having a plurality of storage chambers, there are some refrigerators in which the vegetable compartments are arranged in the upper and lower substantially central portions of the refrigerator body, which is most convenient for the user (see, for example, Patent Document 1).

FIG. 23 shows the refrigerator described in Patent Document 1, in which a refrigerator chamber 101 is provided in the upper part of the refrigerator main body 100 and a freezing chamber 102 is provided in the lower portion, and a vegetable compartment 103 is provided in a substantially central portion above and below the refrigerator book 100 between the two chambers. It is arranged. A cooling chamber 104 is provided on the back surface of the freezer compartment 102 and the vegetable compartment 103 of the refrigerator main body 100, and a cooler 105 and a cooling fan 106 are arranged in the cooling chamber 104 to generate cold air generated by the cooler 105. Is supplied to the refrigerator compartment 101, the vegetable compartment 103, and the freezer chamber 102 by the cooling fan 106 and circulated, and the food stored in each of these chambers is cooled and stored. The vegetable chamber 101 is supplied with cold air after cooling the refrigerating chamber 104 to cool and store the vegetables stored in the vegetable chamber.

Japanese Unexamined Patent Publication No. 9-113109

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

However, in such a refrigerator, since the cooling chamber 104 is also located on the back surface of the vegetable compartment 103, dew condensation may occur in the vegetable chamber due to strong cold radiation from the cooling chamber 104. There was a problem that the vegetables stored in the refrigerator were deteriorated.

In particular, the middle vegetable compartment type refrigerator in which the vegetable compartment 103 is provided in the upper and lower substantially central parts of the refrigerator main body 100 receives cold radiation from the freezing chamber 102 in which the bottom surface of the vegetable compartment 103 is located below the freezing chamber 103. Cold radiation from the chamber 102 is also added, and the synergistic action of both of them tends to lower the temperature near the lower back of the vegetable compartment 103, and dew condensation may occur near the lower back of the vegetable storage case in the vegetable chamber, deteriorating the vegetables. It was easy to happen.

It is conceivable that this dew condensation problem can be solved by providing a cooling chamber only on the back surface of the freezing chamber and not locating it on the back surface portion of the vegetable compartment as disclosed in Japanese Patent Application Laid-Open No. 11-118314. .. However, with such a configuration, the size of the cooler provided in the cooling chamber is limited and the cooling capacity is restricted, so that it cannot be applied to a large refrigerator with a large capacity. Therefore, in a large refrigerator, cold radiation from the cooling chamber is emitted. It will not be possible to solve the problem of vegetable deterioration due to dew condensation that occurs in. That is, this dew condensation problem has been an unavoidable problem in a large refrigerator in which the cooling chamber is enlarged and the cooling chamber 104 is located up to the back portion of the vegetable compartment.

The present invention has been made in view of these points, and an object of the present invention is to provide a refrigerator capable of satisfactorily cooling and storing vegetables and the like by eliminating dew condensation in the vegetable chamber even in a large refrigerator having a large freezing capacity. It was.

In order to solve the above-mentioned conventional problems, the present invention arranges a refrigerator compartment at the upper part of the refrigerator body, a freezer compartment at the lower part, and a vegetable compartment separated by a partition plate above the freezer compartment, and behind the freezer compartment. A cooling chamber for generating cold air is provided, and the cooling chamber is provided with a cooler and a cooling fan for supplying the cold air generated by the cooler to each chamber, and the refrigerating chamber is provided behind the vegetable storage case of the vegetable chamber. A return passage through which the circulated cold air returns to the cooler and a vegetable compartment fan which is arranged in communication with the return passage to blow cold air to the vegetable compartment are provided, and the vegetable storage case is divided into left and right by a case partition plate. , The vegetable compartment fan can be placed upright in one of the left and right compartments, and the vegetable compartment fan can be placed behind the compartment in which the pet bottle can be upright and stored.

The refrigerator of the present invention has a configuration in which the inside of the vegetable compartment is divided into left and right, a storage portion for PET bottles and the like is provided on one side thereof, and a vegetable compartment fan is provided in the vegetable compartment. As a result, even in a refrigerator with a large cooling capacity, the cold air in the vegetable compartment is diffused or circulated, suppressing the occurrence of extreme low temperature and temperature difference near the lower part of the back of the vegetable compartment and preventing the occurrence of dew condensation. , Vegetables, PET bottles, etc. can be effectively cooled, and a highly reliable refrigerator can be used.

Front view of the refrigerator according to the first embodiment of the present invention Front view when the refrigerator door is opened in the first embodiment. AA sectional view of FIG. 2 showing a refrigerator according to the first embodiment. BB sectional view of FIG. 2 showing the refrigerator according to the first embodiment. Half-cut perspective view of the refrigerator according to the first embodiment. Schematic cross-sectional view for explaining the cold air flow of the refrigerator according to the first embodiment. Schematic front view illustrating the flow of cold air from the refrigerator according to the first embodiment. A perspective view illustrating the flow of cold air in the back portion of the cooling chamber of the refrigerator according to the first embodiment. Enlarged sectional view of a main part of FIG. 3 showing a refrigerator according to the first embodiment. Schematic cross-sectional view for explaining the cold air flow in FIG. Enlarged sectional view of a main part of FIG. 4 showing a refrigerator according to the first embodiment. Schematic cross-sectional view for explaining the cold air flow in FIG. Enlarged front view showing the vegetable compartment and the freezing compartment of the refrigerator in the first embodiment. 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. Enlarged perspective view showing the back wall portion of the vegetable compartment and the freezing chamber of the refrigerator according to the first embodiment. A perspective view of the back partition wall block constituting the back wall portion of the vegetable compartment of the refrigerator shown in FIG. An exploded perspective view of the back partition wall block constituting the back wall portion of the vegetable compartment shown in FIG. An exploded perspective view of a block constituting the back wall portion of the freezing chamber shown in FIG. Perspective view of the partition plate and the cooling fan that separate the storage room and the vegetable room of the refrigerator in the first embodiment. An exploded perspective view of the partition plate and the cooling fan in FIG. A perspective view showing a vegetable storage case of the refrigerator according to the first embodiment. The control block diagram of the refrigerator in the first embodiment. Schematic cross-sectional view of a conventional refrigerator

In the first invention, a refrigerating chamber is arranged in the upper part of the refrigerator body, a freezing chamber is arranged in the lower part, a vegetable chamber partitioned by a partition plate is arranged above the freezing chamber, and a cooling chamber for generating cold air is provided behind the freezing chamber. The cooling chamber is provided with a cooler and a cooling fan that supplies the cold air generated by the cooler to each chamber, and the cold air circulating in the refrigerator compartment is sent to the cooler behind the vegetable storage case of the vegetable compartment. It is equipped with a return return passage and a vegetable room fan that is arranged in communication with the return passage and blows cold air to the vegetable room. The vegetable storage case is divided into left and right by a case partition plate, and either the left or right section is divided. The vegetable compartment fan is arranged in the rear of the section where the pet bottle can be stood and stored, and the pet bottle can be stood and stored.

The second invention is the first invention, in which the vegetable storage case is divided into left and right by a case partition plate, and the PET bottle can be stored upright by making one step deeper in either of the left and right compartments. The vegetable compartment fan is arranged behind the compartment where the PET bottle can be stood up and stored.

The third invention is the first or second invention, in which the vegetable compartment fan is arranged behind the narrower section of the section divided to the left and right by the case partition plate.

The fourth invention is any one of the first to third inventions, wherein the vegetable compartment fan is arranged so as to face the rear surface of the vegetable storage case.

A fifth invention is any one of the first to fourth inventions, wherein the cooling fan is attached to the upper part of the partition plate and arranged on the back surface of the vegetable compartment.

A sixth invention is any one of the first to fifth inventions, wherein a first heater provided on the bottom surface of the vegetable compartment and a second heater provided on the back surface of the vegetable compartment are provided.

A seventh invention is a sixth invention in which a refrigerating chamber damper is provided on the back surface of the vegetable compartment, and the second heater is provided at a position lower than the refrigerating chamber damper.

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

(Embodiment 1)
FIG. 1 is a front view of the refrigerator according to the first embodiment of the present invention, FIG. 2 is a front view when the door of the refrigerator according to the first embodiment is opened, and FIG. 3 is FIG. 2 showing the refrigerator according to the first embodiment. AA cross-sectional view, FIG. 4 is a BB cross-sectional view of FIG. 2 showing the refrigerator in the first embodiment, FIG. 5 is a half-cut 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 cold air flow of the refrigerator in 1, FIG. 7 is a schematic front view for explaining the cold air flow of the refrigerator in the first embodiment, and FIG. 8 is a rear portion of the cooling chamber of the refrigerator in the first embodiment. FIG. 9 is an enlarged sectional view of a main part of FIG. 3 showing a refrigerator according to the first embodiment, FIG. 10 is a schematic sectional view for explaining the cold air flow in FIG. 9, and FIG. 11 Is an enlarged cross-sectional view of a main part of FIG. 4 showing a refrigerator according to the first embodiment, FIG. 12 is a schematic cross-sectional view for explaining the flow of cold air in FIG. 11, and FIG. 13 is a vegetable compartment of the refrigerator according to the first embodiment. FIG. 14 is an enlarged front view showing the refrigerator and the refrigerator's vegetable compartment shown in FIG. 13 and an enlarged front view showing a cooling fan and a cooler installed on the back surface of the freezer, and FIG. 15 is the first embodiment. An enlarged perspective view showing the back wall portion of the vegetable compartment and the freezer compartment of the refrigerator, FIG. 16 is a perspective view of the back partition wall block constituting the back wall portion of the vegetable compartment of the refrigerator shown in FIG. 15, and FIG. 16 is an exploded perspective view of the back partition wall block constituting the back wall portion of the vegetable compartment, FIG. 18 is an exploded perspective view of the block constituting the back wall portion of the freezer chamber shown in FIG. 16, and FIG. 19 is the same implementation. 20 is an exploded perspective view of the partition plate and the cooling fan in FIG. 19, and FIG. 21 is an exploded perspective view of the partition plate and the cooling fan that separates the storage room and the vegetable compartment of the refrigerator in the first embodiment. A perspective view showing a vegetable storage case, FIG. 22 is a control block diagram of the refrigerator according to the first embodiment.

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

<Refrigerator body configuration>
In FIGS. 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 made of a steel plate as shown in FIG. It is composed of an inner box 3 molded of 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 chambers by a partition plate 5.6. The refrigerator 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 refrigerator of the middle vegetable room type. 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 region of the refrigerator body 1. The machine room 14 houses high-pressure components of the refrigeration cycle, such as a compressor 15 and a dryer (not shown) for removing water.

Further, a cooling chamber 16 for generating cold 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 compartment 8, and a back surface partition wall body 17 having heat insulating properties by styrofoam or the like is provided between the cooling chamber 16 and the vegetable compartment 8. It has a heat insulating partition.

A cooler 18 is arranged in the cooling chamber 16, and a cooling fan 19 is arranged above the cooler 18. The cooling fan 19 cools each room by forcibly circulating the cold air cooled by the cooler 18 to the refrigerating room 7, the vegetable room 8, and the freezing room 9. For example, the refrigerating room 7 is usually cooled to a temperature of 1 ° C. to 5 ° C. so that the food does not freeze, and the vegetable room 8 is cooled to a temperature of 2 ° C. to 7 ° C. equal to or slightly higher than that of the refrigerating room 7. Further, the freezing chamber 9 is usually cooled to a freezing temperature range of -22 ° C to -15 ° C for freezing storage, and in some cases, for improving the frozen storage state, for example, a low temperature of -30 ° C or -25 ° C. It may be cooled to.

The cooling fan 19 is assembled to a partition plate 6 that separates the vegetable compartment 8 and the freezing chamber 9 as shown in FIG. 19, and in this state, the cooling fan 19 faces the back surface of the vegetable compartment 8 as shown in FIG. Cold air is blown toward the back partition wall 17 which is located in the portion and partitions the vegetable compartment 8, and brings 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 foamed heat insulating material 4 (not shown in FIG. 20) between the upper surface member 6a and the lower surface member 6b, and an opening 20 is formed on the inner side. .. The cooling fan 19 is assembled in the upper part of the opening 20, and the cooler 18 of the cooling chamber 16 is located below. The opening 20 is formed to be larger than the projected area of the upper surface of the cooler 18 located below the opening 20, and a projecting piece 21 projecting downward is provided on the lower surface of the side edge portion of the lower surface member 6b on the back surface of the opening, and on the upper surface. Upward projecting pieces 22 projecting upward from the opening edge of the upper surface member 6a are formed. Further, in the partition plate 6, a first heater 23 for preventing dew condensation, which is composed of a sheathed heater or the like, is embedded in a portion of the bottom surface of the vegetable compartment in front of the cooling fan 19. Although not shown, the partition plate 6 is formed in the shape of a hollow plate 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 main body 1. At the same time, the foam insulating material 4 is filled and integrated with the refrigerator main body 1. Further, when the partition plate 6 is integrated with the refrigerator main body 1, a jig (not shown) is pressed against the projecting piece 21 and the upward projecting piece 22 and directly pressed against the inner box 3 inner surface of the refrigerator body 1 to form the partition plate. 6 is positioned and held at a predetermined position, and the refrigerator body 1 is integrated with the refrigerator body 1 by filling and foaming the foam heat insulating material 4 between the upper and lower surface members 6a and 6b from the refrigerator body side by filling the refrigerator body 1. There is.

In the figure, 24 is a heat insulating barrier covering the front portion of the opening edge of the opening 20, which is made of styrofoam or the like, and one side piece thereof is an opening 25 for a cold air return passage provided in the partition plate 6. A passage opening 26 corresponding to the above is formed. Further, a tank installation portion 27 for supplying water to the ice making device provided in the freezing chamber 9 is formed in a portion of the partition plate 6 opposite to the cold air return passage opening 25.

Further, in the lower space of the cooler 18, as shown in FIG. 9 and the like, a defrost heater 28 for removing frost and ice adhering to the cooler 18 and its surroundings is arranged. A drain pan 29 for receiving the defrost water generated during defrosting is arranged at the lower part of the defrost heater 28, and the defrost water is discharged from the deepest part of the drain pan 29 to an evaporating dish outside the refrigerator via a drain tube (not shown). It has become like.

Next, the cold air circulation configuration will be described.

<Cold air circulation passage configuration>
In the cooling chamber 16 that generates cold air, as shown in FIG. 9 and the like, the downstream of the cooling fan 19 opens in the cooling chamber cold air transport path 30 formed between the back surface partition wall 17 and the refrigerator main body 1. Cold air is blown to each chamber through the cooling chamber cold air transport path 30.

The upper part of the cooling chamber cold air transport passage 30 is formed in the substantially central portion of the back surface of the refrigerating chamber 7 via the refrigerating chamber damper 31 as shown in FIGS. 7, 8, and 10, especially FIG. It communicates with. As shown in FIGS. 7 and 8, a refrigerated cold air return passage 33 from the refrigerated chamber 7 is installed adjacent to the side of the refrigerated cold air flowing passage 32, and the lower part thereof communicates with the vegetable chamber 8 and the cooling chamber 16. There is.

As shown in FIG. 7, the refrigerating chamber 7 is provided with a refrigerating cold air inlet 35 of the refrigerating cold air flow passage 32 at an appropriate position on the upper part of the back wall, and a refrigerating cold air opening to the refrigerating cold air return passage 33 at a suitable place on the lower part of the back wall. The return port 36 is provided, and the cold air from the cooling chamber 16 is supplied to the refrigerating cold air outflow passage 32 via the refrigerating chamber damper 31, and is supplied to the refrigerating chamber 7 from the refrigerating cold air inlet 35. On the other hand, the cold air after cooling the refrigerating chamber is supplied from the refrigerating cold air return port 36 to the vegetable chamber 8 via the refrigerating cold air return passage 33, and circulates to the cooling chamber 16. Further, the refrigerating chamber 7 is provided with a partial chamber at the lower portion thereof as described later, and the partial chamber includes a partial chamber damper 31a, a partial chamber cold air passage 32a, and a partial chamber cold air inlet as shown in FIG. It is designed to be supplied via 35a.

In this embodiment, as is clear from FIG. 8, on the back surface of the back surface partition wall body 17 and the partition plate 6, the cooling chamber cold air transport passage 30, the refrigerating cold air outflow passage 32, and the partial chamber cold air outflow passage 32a A return passage 37 for communicating with the refrigerator, a return passage 38 for connecting the refrigerated cold air return passage 33, the vegetable compartment 8, and the cooling chamber 16 are formed, and the refrigerating chamber damper 31 is provided in the outgoing passage 37. ..

Then, a continuous passage 39 is formed between the cold air return passage 32 and the cold air return passage 33, so that a part of the low temperature cold air flowing through the cold air return passage 32 is mixed in the cold air return passage 33. It is configured.

Further, as shown in FIG. 8, a cold air return duct 40 extending downward on the side of the cooling fan 19 and the cooler 18 of the cooling chamber 16 is provided on the back surface of the freezing chamber 9, and the cold air return duct 40 is provided. The upper part communicates with the vegetable chamber 8 through the return passage 38, and the lower part thereof opens near the lower part of the cooling chamber 16, and the cold air after cooling the vegetable chamber 8 opens to the lower part through the cold air return duct 40. Is configured to circulate from the air to the cooling chamber 16.

On the other hand, as shown in FIG. 10, the freezing chamber 9 has a freezing cold air inlet 42 communicating with the lower part of the cooling chamber cold air transport path 30 on the back surface of the back partition wall 17 at the upper part of the back wall 41, and the cooling chamber at the lower part. A freezing cold air return port 43 that opens at the lower part of 16 is formed, cold air from the cooling chamber 16 is supplied from the lower part of the cooling chamber cold air transport path 30 through the freezing cold air inlet 42, and the cold air after cooling the freezing chamber is frozen. It circulates to the cooling chamber 16 through the cold air return port 43.

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

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

Furthermore, in the vegetable chamber 8, a first passage 47a is formed on the upper surface of the vegetable chamber so as to connect to the vegetable chamber 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, as shown in FIGS. 13 and 16, the vegetable chamber 8 of this embodiment is the upper part of the back surface partition wall 17 which is the inner surface thereof and is diagonally positioned at the vegetable cold air inlet 44. A second vegetable cold air suction port 51 is provided in the upper part on the left back side in this embodiment, and the second passage 51a provided with the second vegetable cold air suction port 51 is also shown in FIG. It communicates with the upper part of the vegetable compartment passage portion 50 and the vegetable cold air return port 46.

FIG. 17 is an exploded perspective view of the back surface partition wall body 17 forming the vegetable compartment passage portion 50, and the vegetable chamber passage portion 50 is a front partition plate 17a and a rear partition plate 17a polymerized via styrofoam (not shown). It is formed between the partition plate 17b and the upper end portion 50a thereof is open to the vegetable cold air return port 46 as shown in FIG. Further, as described above, the vegetable chamber fan 53 is incorporated in the lower part of the vegetable chamber passage portion 50, and the outlet 54 thereof is open in the vegetable chamber 8, and the cold air from the vegetable cold air inlet 44 and the second The vegetable compartment cold air from the first vegetable cold air suction port 47 and the second vegetable cold air suction port 51 is blown into the vegetable compartment 8. The outlet 54 of the vegetable compartment fan 53 opens toward the rear surface of the 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 toward the lower side. The inclined surface 55 is configured so that the cold air from the vegetable compartment fan 53 flows intensively to the lower surface space of the lower vegetable storage case 49a.

Further, as shown in FIG. 10, a second heater 56 for preventing dew condensation, which is composed of a sheathed heater or the like, is embedded in the surface of the back surface partition wall body 17 facing the cooling chamber 16. The second heater 56 is installed in a low temperature cooling chamber temperature zone located at a position facing the upper portion of the cooling chamber 16 and below the cooling chamber damper 31 that opens and closes the cold air from the cooling chamber 16 to the refrigerating chamber 7. Has been done. That is, the second heater 56 is provided in a portion of the back surface partition wall 17 that constitutes the entire back surface of the vegetable compartment 8 and that faces the cooling chamber temperature zone from the cooling chamber 16 to the refrigerating chamber damper 31. We are trying to reduce the size.

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

As shown in FIG. 11 and the like, a vegetable storage case 48 is arranged in the vegetable compartment 8, 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 storage case 49a. 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, the partition plate 6 below the vegetable compartment, 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. Consists 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 at the upper part of the vegetable chamber 8 and above the vegetable cold air inlet 44, so that the vegetable cold air is cold. It is configured so that cold air from the entrance 44 does not directly enter the upper vegetable storage case 49b and the lower vegetable storage case 49a of the vegetable storage case 48. A lid for closing the upper opening of the upper vegetable storage case 49b may be provided to more reliably prevent cold air from entering the vegetable storage case 48.

Further, as shown in FIG. 21, 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 one step deeper to make a PET bottle. It is a non-vegetable storage unit (hereinafter referred to as a PET bottle storage unit) 59 such as a pack or a pack. The PET bottle storage unit 59 may partition the inside of the vegetable compartment 8 back and forth, and the front portion thereof may be used as a PET bottle storage unit.

<Refrigerator room configuration>
As shown in FIG. 4, the refrigerating chamber 7 has a plurality of storage shelves 60 inside, and also has a partial chamber 61 capable of cooling in a semi-freezing temperature zone, and the refrigerating cold air inlet 35 and the refrigerating cold air return already described in each appropriate place. A mouth 36 (both see FIG. 7) is provided. An operation unit 62 for setting the temperature inside the refrigerator, ice making, rapid cooling, and the like is arranged at an appropriate position on the side wall of the refrigerator compartment 7.

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

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

<Control configuration>
FIG. 22 shows a control block diagram in the refrigerator of the present embodiment, 65 is a refrigerating room temperature detecting means, 66 is a vegetable room temperature detecting means, and 67 is a freezing room temperature detecting means, all of which are formed by a thermistor. They are installed in 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 controls the entire refrigerator, which is configured by a compressor or the like, and is a refrigerating room according to the control software incorporated in advance based on the outputs from the refrigerating room temperature detecting means 65 and the freezing room temperature detecting means 67. The damper 31 and the 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 control unit 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 the outputs from the refrigerating chamber temperature detecting means 65 and the vegetable compartment temperature detecting means 66. .. Specifically, when either one detects a temperature in which the temperature detected by the refrigerating room temperature detecting means 65 and the vegetable room temperature detecting means 66 is higher than the respective set temperatures, the vegetable room fan 53 is driven. Furthermore, the control unit 68 drives the first heater 23 and the second heater 56 based on the output from the vegetable room temperature detecting means 66.

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

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

The refrigeration 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 to some extent by a condenser (not shown), and further, the refrigerant pipes (shown) arranged on the side and back of the refrigerator and the front frontage of the refrigerator. It condenses and liquefies while preventing dew condensation in the refrigerator, and reaches a capillary tube (not shown). After that, in the capillary tube, the pressure is reduced while exchanging heat with the suction pipe (not shown) to the compressor 15, and the liquid refrigerant becomes a low-temperature low-pressure liquid refrigerant and reaches the cooler 18 in the cooling chamber. Here, the refrigerant in the cooler 18 evaporates and vaporizes, and cold 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 from the cooling chamber cold air transport path 30 to the refrigerating chamber 7 and the freezing chamber 9 by the cooling fan 19, 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 chamber is cooled to a 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. Further, in order to supply cold air to each of the above chambers, the control unit 68 operates / stops the compressor 15 and the cooling fan 19 based on the detection temperatures of the refrigerating chamber temperature detecting means 65 and the refrigerating chamber temperature detecting means 67, and the refrigerating chamber damper 31. , The freezer compartment damper 34 is controlled to open and close, and each chamber 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 supplying the cold air after cooling the refrigerating chamber from the refrigerating cold air return passage 33 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 through the vegetable compartment passage 50 by the blowing pressure of the cooling fan 19, and the lower vegetable storage case 49a and the upper vegetable storage case 49b and the vegetable compartment of the vegetable storage case 48. It flows through the space between the inner peripheral wall of No. 8 and indirectly cools the vegetables, PET bottles, etc. stored in the vegetable storage case 48 from the outer periphery of the case, and the cold air return passage 33 from the vegetable cold air return port 46. It circulates from the cold air return duct 40 to the cooling chamber 16 via the route.

Here, in the refrigerator shown in this embodiment, as shown in FIG. 12, a 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 flowing return cold air is sucked from the vegetable cold air inlet 44 into the vegetable compartment passage 50.
The vegetables are 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.

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

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

The vegetable compartment 8 is cooled as described above, but receives cold radiation from the cooling chamber 16 located on the back surface of the vegetable compartment 8 and the freezing chamber 9 located below the vegetable compartment 8, and the temperature in the vicinity of the lower portion of the back surface tends to be lowered as in the conventional case. .. In particular, the cold radiation from the cooling chamber 16 is strong, and the cold radiation to the back surface of the vegetable compartment 8 is not only the cooling chamber 16 itself, but also the cooling chamber cold air transport path 30 band from the cooling chamber 16 to the refrigerating chamber damper 31. It is in the same extremely low temperature zone as 16 and is subject to strong cold radiation in the portion facing the cooling chamber temperature zone up to the refrigerating chamber damper 31, and this portion tends to be cooled.

In this refrigerator, the temperature in the vicinity of the lower part of the back surface of the vegetable chamber due to the cold radiation is first dispersed by the cold air that diffuses or circulates in the vegetable chamber 8 by driving the vegetable chamber fan 53, and the temperature is suppressed. To do. That is, the cold air in the vegetable chamber 8 is diffused or circulated by the vegetable chamber fan 53, and the diffused or circulated cold air is located below the cold radiation from the cooling chamber temperature zone located on the back surface of the vegetable chamber 8. The temperature near the lower back of the vegetable compartment, which tends to be lowered by cold radiation from the freezing chamber 9, is diffused into the vegetable compartment 8 to lower the temperature inside the vegetable compartment 8 to cool the inside of the vegetable compartment 8 and at the same time, near the lower back of the vegetable compartment. It suppresses extreme temperature reduction and temperature difference, and prevents the occurrence of dew condensation.

Although the local temperature reduction in the vegetable compartment 8 is suppressed in this way, if this state continues for a long time, the cooling air cannot be suppressed by the diffusion or circulation of the cold air by the vegetable compartment fan 53, and dew condensation occurs. It may drop to a comfortable temperature.

In such a case, the refrigerator heats the second heater 56 provided by the control unit 68 in a portion facing the cooling chamber temperature zone on the back surface of the vegetable compartment. As a result, the temperature drop in the vicinity of the lower part of the back surface of the vegetable chamber due to cold radiation from the cooling chamber temperature zone is surely suppressed, and a situation leading to the occurrence of dew condensation can be avoided. In particular, in this embodiment, the first heater 23 is provided on the partition plate 6 that separates the vegetable compartment 8 and the freezer compartment 9, and the first heater 23 also generates heat together with the second heater 56. Cold radiation can be reliably suppressed, and it is possible to efficiently prevent the temperature near the lower part of the back surface of the vegetable compartment from becoming low and prevent deterioration of vegetables due to the occurrence of dew condensation.

Further, the second heater 56 is small because it is provided only in the cooling chamber temperature zone from the cooling chamber 16 to the refrigerating chamber damper 31 in the back surface partition wall 17 which is the back wall of the vegetable compartment 8. It is possible to increase the temperature of the portion that tends to be cooled while minimizing the cost increase and power consumption to surely prevent the portion from being lowered in temperature, and it is possible to efficiently suppress the occurrence of dew condensation.

As described above, since this refrigerator prevents the occurrence of dew condensation due to the local low temperature of the vegetable compartment 8, the cooler 18 for generating cold air is enlarged and the cooling chamber 16 is large so as to straddle the freezing chamber 9 and the vegetable compartment 8. Even a large-capacity refrigerator can suppress dew condensation caused by cold radiation from the cooling chamber 16. Therefore, in all refrigerators from a small refrigerator with a small capacity to a large refrigerator with a large capacity, it is possible to suppress the deterioration of vegetables due to the condensed water generated by the cold radiation from the cooling chamber 16 and to cool and store the vegetables in a good condition. It will be possible. Moreover, since this refrigerator is a middle vegetable room type refrigerator in which the vegetable room 8 is provided between the refrigerating room 7 and the freezing room 9 in the central portion of the upper and lower parts of the refrigerator body 1, dew condensation occurs as described above. It is effective because it can prevent and cool and store the vegetables in a good state, and improve the usability of the user who mainly uses the vegetables in and out.

On the other hand, in the above-mentioned refrigerator, the partition plate 6 in which the first heater 23 is embedded is attached so as to communicate between the inner and outer boxes 2 and 3 of the refrigerator body, and foam insulation is performed together with the refrigerator body 1 when the refrigerator body is molded. Since the material 4 is filled and integrated with the refrigerator main body 1, and the back surface partition wall body 17 is attached to the refrigerator main body 1 so as to form a cooling chamber 16 on the back surface of the vegetable compartment 8, the partition plate 6 is also a refrigerator. It can be heat-insulated by the foam heat insulating material 4 which has the same high heat insulating property as the main body 1, and the heat insulating property is improved, the amount of cold radiation from the freezing room 9 to the vegetable room 8 can be reduced, and at the same time, the partition plate 6 itself. The thickness of the vegetable compartment 8 can be reduced, and the capacity of the vegetable compartment 8 or the freezer compartment 9 can be increased accordingly.

Further, at that time, that is, when the partition plate 6 is integrated with the refrigerator main body 1, the partition plate 6 presses a jig (not shown) against the projecting piece 21 and the upward projecting piece 22 as it is, as described above. By pressing the partition plate 6 against the inner surface of the inner box 3 of 1, the partition 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 body 1 side to be integrated. , The refrigerator body 1 can be integrated at the same time as the molding, and the productivity is improved.

In addition, the back partition wall 17 constituting the back wall of the vegetable compartment 8 is retrofitted after molding the refrigerator body, 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. The cooling fan 19 can be attached to the partition plate 6 from the inside of the vegetable compartment 8 before the back surface partition wall body 17 is attached, and the cooling fan 19 can be attached to and detached from the back surface partition wall body 17. 19 maintenance can also be performed, and a refrigerator with good assembly and maintainability can be obtained.

As described above, this refrigerator can prevent dew condensation that occurs in the vegetable compartment 8 and can cool and store vegetables and the like in a good state, and also has good productivity and maintainability. Furthermore, this refrigerator is related to cooling the vegetable compartment. Has various effects, and this will be described below.

First, the vegetable compartment fan 53 provided in the vegetable compartment 8 has a configuration in which cold air is diffused or circulated toward the outer periphery of the lower vegetable storage case 49a and the upper vegetable storage case 49b of the vegetable storage case 48. Cold air diffused or circulated by the fan 53 can be prevented from entering the lower vegetable storage case 49a and the upper vegetable storage case 49b and flowing between vegetables, and vegetables that tend to be generated by the cold air flowing between vegetables. It is possible to prevent the drying and deterioration of 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, which also serves as a suction port for cold air that diffuses or circulates in the vegetable chamber, is located above the vegetable storage case 48 composed of the lower vegetable storage case 49a and the upper vegetable storage case 49b. And since the second vegetable cold air suction port 51 is provided, the cold air that diffuses or circulates in the vegetable chamber 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 flows to the first vegetable cold air suction port 47 and the second vegetable cold air suction port 51, and it is possible to more reliably prevent the drying deterioration of the vegetables and cool and store the vegetables in a fresh and good state. This can be further enhanced by bringing the upper surface 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 surface opening. be able to.

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

Further, since the vegetable chamber 8 has a vegetable chamber passage portion 50 communicating with the vegetable cold air inlet 44 and a vegetable chamber fan 53 is provided below the vegetable chamber passage portion 50, the vegetable chamber passage portion 50 is a throat. It is possible to efficiently take cold air into the vegetable compartment 8 and diffuse or circulate it by exerting such a function, whereby the occurrence of dew condensation in the vegetable compartment 8 can be suppressed more efficiently.

In addition, in this embodiment, the vegetable storage case 48 divides the inside of the lower vegetable storage case 49a into left and right, and a storage portion 59 for PET bottles such as PET bottles and packs is provided on one of them to store the PET bottles and the like. Since the vegetable compartment fan 53 is provided on the back portion of the vegetable compartment on the side of the portion 59 so as to diffuse or circulate the cold air in the vegetable chamber toward the PET bottle storage portion 59, the vegetable chamber fan 53 The cold air circulates intensively around the PET bottle storage unit 59, and the PET bottles, packs, etc. stored in the PET bottle storage unit 59 can be efficiently cooled. In particular, drinking water such as PET bottles and packs stored in the storage unit 59 such as PET bottles is effective because it has a larger heat capacity than vegetables and is hard to cool, so that the temperature of the vegetable compartment due to storage of PET bottles and the like can be increased. The rise can be suppressed efficiently.

Further, in this embodiment, 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 PET bottle storage portion 59. It is effective because the cold air from the vegetable compartment fan 53 to the vegetable cold air return port 46 can be circulated more efficiently and intensively to the storage portion such as a PET bottle.

Further, since the second vegetable cold air suction port 51, which is another suction port for circulating the cold air in the vegetable chamber 8, is provided in the upper part of the vegetable chamber at a position substantially diagonal to the vegetable chamber fan 53. The cold air from the vegetable compartment fan 53 diffuses or circulates forward through the bottom surface of the pet bottle storage portion 59 of the vegetable compartment 48 while diagonally traversing the inside of the vegetable compartment 8 and circulates in the second upper part of the vegetable compartment. Since the vegetables flow to the cold air suction port 51, the lower vegetable storage case 49a and the upper vegetable storage case 49a and the upper vegetable storage case 49a prevent the 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 widely diffused or circulated around the outer periphery of the vegetable case made of 49b, and vegetables, PET bottles and the like can be effectively cooled.

Further, in this refrigerator, a continuous passage 39 is formed between the refrigerating cold air going passage 32 and the refrigerating cold air returning passage 33, and when the vegetable compartment fan 53 rotates, the low temperature in the refrigerating cold air going passage 32 due to the suction force thereof. Fresh cold air mixes into the refrigerated cold air return passage 33 and is supplied into the vegetable compartment 8 from the vegetable cold air inlet 44 via the return passage 38. That is, the vegetable compartment 8 is cooled by the return cold air whose temperature is relatively high after cooling from the refrigerator compartment 7, but in this refrigerator, the cold air after cooling the refrigerator compartment is caused by the rotation of the vegetable compartment fan 53. The vegetable compartment 8 is cooled by the cold air that has been cooled by mixing low-temperature fresh cold air into the refrigerator. 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 or PET bottles are temporarily stored. be able to. Further, the amount of low-temperature fresh cold air taken in through the passage 39 can be increased by increasing the rotation speed of the vegetable compartment fan 53, and a large amount of normal temperature PET bottles having a large heat capacity are stored in the summer. Even at times, this can be reliably cooled. Moreover, since the vegetable chamber 8 can be reliably cooled, the generation of dew condensation due to cold radiation from the cooling chamber 16 can be efficiently suppressed, and the vegetables can be cooled and stored in a good state.

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

Further, if the temperature of the vegetable chamber 8 becomes higher than the second set temperature set to a temperature slightly higher than the set temperature despite the rotation of the vegetable chamber fan 53, the vegetable chamber fan The number of rotations of 53 can be increased to enhance the diffusion or circulation of cold air, and the amount of fresh cold air taken in at low temperature can be increased, so that the vegetable compartment 8 can be reliably cooled. Therefore, it is possible to eliminate the lack of cooling in the summer, reliably realize good cooling storage of vegetables and the like, and improve 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 of carrying out the present invention, and can be variously changed as long as the object of the present invention is achieved. Needless to say.

For example, in this embodiment, a heater for preventing dew condensation is provided not only on the back surface of the vegetable compartment 8 but also on the partition plate 6 on the bottom surface, but the first heater 23 on the bottom surface of the vegetable compartment 8 is the degree of cold radiation from the freezing chamber 9. It may be eliminated depending on the situation.

The refrigerator according to the present invention can suppress the occurrence of dew condensation in the vegetable chamber even if it has a large cooling capacity, can cool and store vegetables in a good state, and is widely applied to not only household refrigerators but also commercial refrigerators. be able to.

1 Refrigerator body 2 Outer box 3 Inner box 4 Foam insulation 5, 6 Partition plate 7 Refrigerator room 8 Vegetable room 9 Freezer room 10, 11, 12 Doors 14 Machine room 15 Compressor 16 Cooling room 17 Back partition wall 18 Cooling Instrument 19 Cooling fan 20 Opening 21 Projection piece 22 Upward projecting piece 23 First heater 24 Insulation barrier 25 Opening for cold air return passage 26 Passage opening 27 Tank installation part 28 Defrosting heater 29 Drain pan 30 Cooling room Cold air transport path 31 Refrigerator Room damper 32 Refrigerator cold air return passage 33 Refrigerator cold air return passage 34 Refrigerator room damper 35 Refrigerator cold air inlet 36 Refrigerator cold air return port 37 Outbound passage 38 Return passage 39 Continuous passage 40 Cold air return duct 41 Back wall 42 Refrigerated cold air return Mouth 44 Vegetable cold air inlet 46 Vegetable cold air return port 47 First vegetable cold air suction port 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 suction port 51a Second passage 52 Second cold air circulation path 53 Vegetable room fan 54 Air outlet 55 Inclined surface 56 Second heater 57 Connector 58 Case partition plate 59 Non-vegetable storage (PET bottle storage)
60 Storage shelf 61 Partial room 62 Operation unit 63 Freezing room case 64 Ice making device 65 Refrigerating room temperature detecting means 66 Vegetable room temperature detecting means 67 Freezing room temperature detecting means 68 Control unit

Claims (7)

A refrigerating chamber is arranged in the upper part of the refrigerator body, a freezing chamber is arranged in the lower part, a vegetable chamber partitioned by a partition plate is arranged above the freezing chamber, and a cooling chamber for generating cold air is provided behind the freezing chamber. It is equipped with a container and a cooling fan that supplies the cold air generated by the cooler to each chamber, and a return passage and a return passage through which the cold air circulating in the cold storage chamber returns to the cooler behind the vegetable storage case in the vegetable compartment. It is equipped with a vegetable room fan that is arranged in communication with the aisle and blows cold air to the vegetable room.
The vegetable storage case is divided into left and right by a case partition plate, and a PET bottle can be stored upright in one of the left and right compartments, and the vegetable compartment fan is behind the compartment where the PET bottle can be stored upright. A refrigerator characterized by the placement of. The vegetable storage case is divided into left and right by a case partition plate, and a PET bottle can be stood up and stored by making one step deeper in either of the left and right compartments, and the rear of the compartment where the PET bottle can be stood up and stored. The refrigerator according to claim 1, wherein the vegetable compartment fan is arranged in the refrigerator. The refrigerator according to claim 1 or 2, wherein the vegetable compartment fan is arranged behind the narrower division portion divided into left and right by the case partition plate. The refrigerator according to any one of claims 1 to 3, wherein the vegetable compartment fan is arranged so as to face the rear surface of the vegetable storage case. The refrigerator according to any one of claims 1 to 4, wherein the cooling fan is attached to an upper portion of the partition plate and is located on the back surface of the vegetable compartment. The refrigerator according to any one of claims 1 to 5, wherein a first heater provided on the bottom surface of the vegetable compartment and a second heater provided on the back surface of the vegetable compartment are provided. The refrigerator according to claim 6, wherein a refrigerator compartment damper is provided on the back surface of the vegetable compartment, and the second heater is provided at a position lower than the refrigerator compartment damper.

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