JP2018141629A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator enabled to store vegetables or the like by eliminating dew condensation in a vegetable chamber.SOLUTION: A vegetable chamber 8 is equipped with a vegetable chamber fan 53 independently of a cooling fan for circulating a cool air in a refrigerating chamber, a vegetable chamber and so on. The vegetable chamber is equipped, on the vegetable fan suction side and discharge side, with a vegetable cool air entrance 44 and a vegetable cool air return port 46 communicating with a cool air return passage 38. In this refrigerator, therefore, the vegetable chamber fan is rotated to diffuse and/or circulate the cool air in the vegetable chamber so that a large temperature difference can be suppressed from arising at a portion to receive a cold radiation from the cooling chamber. As a result, it is possible to prevent the condensation due to a cold radiation from the cooling chamber. Hence, the vegetable deterioration due to the dew condensation water can be suppressed to provide a highly reliable refrigerator capable of performing a cold storage in a better state.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a refrigerator, and in particular to a cold storage configuration for vegetables in a vegetable room of the refrigerator.

  Generally, a household refrigerator is configured by providing a plurality of storage rooms having different temperature bands, for example, a refrigerator room, a vegetable room, and a freezer room, in the refrigerator body. The layout of the refrigerator compartment, vegetable compartment, and freezer compartment is largely divided into two according to the actual usage of the user, one of which is the type in which the freezer compartment is arranged at the upper and lower center portions of the refrigerator main body that is most easily used by the user. The other is a type where a vegetable room is arranged in the same part.

  Refrigerators of a type in which a freezing room is arranged at a substantially central portion in the upper and lower sides of the refrigerator body have become the mainstream of today's refrigerators, and are easy to use for users who frequently use frozen foods as lifestyle changes. Many have been proposed (see, for example, Patent Document 1).

  FIG. 26 shows a refrigerator described in Patent Document 1. A refrigerator room 101 is provided in the upper part of the refrigerator body 100, a vegetable room 102 is provided in the lower part, and a freezer room 103 is provided at a substantially upper and lower central part of the refrigerator body 100 between these two rooms. It is arranged. This refrigerator is provided with a cooling chamber 104 on the back side across the vegetable compartment 102 and the freezing chamber 103 of the refrigerator main body 100, and a cooler 105 and a cooling fan 106 are arranged in the cooling chamber 104. The generated cold air is supplied to the refrigerating room 101, the vegetable room 103, and the freezing room 102 by the cooling fan 106 and circulated, and the food stored in these rooms is cooled and stored.

  In addition, a refrigerator of a type in which a vegetable room is arranged at a substantially central portion of the top and bottom of the refrigerator body is abbreviated as a middle vegetable refrigerator, and has been proposed as being easy to use for users who mainly use vegetables in and out (for example, patents) Reference 1).

  FIG. 27 shows a refrigerator described in Patent Document 2, in which a refrigerator compartment 201 is provided in the upper part of the refrigerator main body 200 and a freezer compartment 202 is provided in the lower part. A chamber 203 is arranged. In the same manner as described above, this refrigerator is also provided with a cooling chamber 204 across the freezer compartment 202 and the vegetable compartment 203 of the refrigerator main body 200, and a cooler 205 and a cooling fan 206 are disposed in the cooling chamber 204. The cold air generated by the cooler 205 is supplied to the refrigeration room 201, the vegetable room 203, and the freezing room 202 by the cooling fan 206 and circulated, and the food stored in these rooms is cooled and stored.

  In any of the above types of refrigerators, the cold air generated in the cooling room is circulated to the vegetable room via the refrigerating room, and the vegetables stored in the vegetable room are cooled and stored by the circulating cold air.

JP 2010-60258 A JP-A-9-113109

  However, in any of the conventional refrigerators described in Patent Document 1 and Patent Document 2, condensation may occur in the vegetable compartments 103 and 203 during the cold storage of vegetables. In such a case, the vegetables stored in this There has been a problem of degrading.

  That is, the vegetable compartments 103 and 203 receive cold radiation from the cooling compartments 104 and 204 located on the back thereof, and the temperature near the back of the vegetable compartments 103 and 203 is likely to be lowered due to this cold radiation. It occurred. In particular, the vegetable compartments 103 and 203 are supplied with cool air having a relatively high temperature after the refrigerator compartments 101 and 201 are cooled as described above. Under such circumstances, the vegetable compartments 103 and 203 are provided with the vegetable compartment 103. In order to continue receiving strong cold radiation from the cooling chambers 104 and 204 provided on the back of the 203, the temperature of the portion, that is, the back portion facing the cooling chambers 104 and 204 is lowered, and the cold air temperature in the vegetable chamber As a result, a large temperature difference occurs, and condensation occurs in the vicinity of the back of the vegetable storage case provided in the vegetable compartments 103 and 203.

  This dew condensation has a heat insulation structure that suppresses cooling radiation from the cooling chambers 104 and 204 so that it does not occur under normal use, but many vegetables or large vegetables such as cabbage are temporarily in the vegetable chambers 103 and 203. When the vegetables are stored in the cabinet, the temperature in the vicinity of the vegetables rises due to the heat of the vegetables, and the temperature difference inevitably increases due to the cold radiation from the cooling chambers 104 and 204, so that the cold air in the vegetables chamber is condensed on the wall of the vegetable storage case. I started to do. Especially in recent refrigerators, large-sized plastic bottles and packs of drinking water, tea, and juice are now stored in vegetable storage cases, and such plastic bottles are often at room temperature compared to vegetables. In addition, since the heat capacity is large, when stored in the vegetable compartments 103 and 203, the temperature in the vicinity of the vegetables and plastic bottles starts to rise immediately after the storage and the temperature difference due to the cold radiation from the cooling chambers 104 and 204 is large. There is a tendency that the problem of vegetable deterioration due to condensation of cold air in the vegetable room becomes obvious.

  Such a problem tends to occur particularly in a refrigerator abbreviated as a middle vegetable, and is likely to become a problem. This is because the middle vegetable type refrigerator receives cold radiation also from the freezer compartment 202 where the bottom of the vegetable compartment 203 is located below, so the cold radiation from the freezer compartment 202 is also added and the vegetable room is synergistic with both. This is because the vicinity of the rear lower portion of 203 is likely to be lowered in temperature, which is unavoidable in a large refrigerator in which the cooling chamber 204 is located up to the rear portion of the vegetable compartment.

  In addition, the above condensation problem is likely to occur in summer when the temperature of drinking water such as vegetables and plastic bottles purchased, tea, and juice tends to be relatively high. As a result, the temperature of the whole vegetable room is high in this case. It tends to be noticeable, the amount of condensed water increases, the temperature of the vegetable room increases, and vegetables and plastic bottles cannot be stored in a sufficiently cold storage. There was also the fear that it would give the impression that there was no such thing and would reduce the reliability of the refrigerator.

  As one of the techniques for solving such a problem, as disclosed in JP-A-11-118314, a cooling chamber is provided only on the back surface of the freezing room and is not positioned on the back surface portion of the vegetable room. Can be considered. However, with such a configuration, the size of the cooler provided in the cooling chamber is limited and the cooling capacity is limited, so that it cannot be applied to a large-capacity large refrigerator. Therefore, the problem of vegetable deterioration due to dew condensation caused by dehydration cannot be solved.

  The present invention has been made in view of these points, and an object of the present invention is to provide a refrigerator that can cool and store vegetables and the like by eliminating condensation in the vegetable room even in a large refrigerator having a large freezing capacity. It is what.

  In order to solve the above-described conventional problems, the present invention provides a vegetable room fan in the vegetable room, in addition to the cooling fan that circulates cold air in the refrigerator room, the freezer room, and the vegetable room, and the vegetable room A cold air return passage circulated by the cooling fan is provided on the back surface of the vegetable compartment, and the cold air return passage communicates with the vegetable fan suction side and the exhaust side of the vegetable compartment between the cold air return passage and the vegetable compartment. The vegetable cold air inlet and the vegetable cold air return port are provided.

  As a result, in this refrigerator, by rotating the vegetable room fan, cold air is taken into the vegetable room from the cold air return passage and diffused or circulated in the vegetable room, and there is a large temperature difference in the part that receives the cold radiation from the cooling room. It is possible to prevent the occurrence of condensation due to cold radiation from the cooling room, and to increase the size of the cooler for generating cold air so that the cooling room spans the freezing room and the vegetable room. Even if it becomes a refrigerator, the dew condensation generation resulting from the cold radiation from the cooling chamber can be suppressed.

  The refrigerator of the present invention can be a highly reliable refrigerator that suppresses the occurrence of dew condensation in the vegetable compartment even when the refrigerator has a large cooling capacity and can cool and store the vegetables in a good state.

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 a cold air flow at the time of cooling fan rotation in the vegetable compartment of the refrigerator in the first embodiment Schematic sectional view for explaining the cold air flow when the cooling fan is stopped in the vegetable room of the refrigerator in the first embodiment 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 vegetable room 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. 17 is an exploded perspective view of the 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 20 is an exploded perspective view of the partition plate and the cooling fan in FIG. 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 The schematic sectional drawing for demonstrating the cold air flow at the time of the cooling fan rotation of the vegetable compartment of the refrigerator in Embodiment 2 The schematic sectional drawing for demonstrating the cool air flow at the time of the cooling fan stop of the vegetable compartment of the refrigerator in Embodiment 2 Schematic sectional view of a conventional refrigerator Schematic sectional view of another conventional refrigerator

  1st invention is equipped with a refrigerator compartment, a vegetable compartment, and a freezer compartment, The cold air produced | generated by the cooler and cooler for cold air generation | occurrence | production on the back of the said freezer compartment and a vegetable compartment is put into the said refrigerator compartment, a vegetable compartment, and a freezer compartment A refrigerator provided with a cooling chamber having a cooling fan and the like for supply and circulation, wherein a vegetable room fan is further provided in the vegetable compartment in addition to the cooling fan for circulating cold air to the refrigerator compartment, freezer compartment, and vegetable compartment And a cool air return passage that is circulated by the cooling fan is provided on the back of the vegetable compartment, and the cold air is provided between the cold air return passage and the vegetable compartment, on the vegetable fan suction side and the exhaust side of the vegetable compartment. A vegetable cold air inlet and a vegetable cold air return port communicating with the return passage are provided.

  As a result, in this refrigerator, by rotating the vegetable room fan, cold air is taken into the vegetable room from the cold air return passage and diffused or circulated in the vegetable room, and there is a large temperature difference in the part that receives the cold radiation from the cooling room. It is possible to prevent the occurrence of condensation due to cold radiation from the cooling room, and to increase the size of the cooler for generating cold air so that the cooling room spans the freezing room and the vegetable room. Even if it becomes a refrigerator, the dew condensation resulting from the cold radiation from the cooling chamber can be suppressed. Therefore, in the refrigerator in the whole area from the small-capacity small refrigerator to the large-capacity large-sized refrigerator, it is possible to suppress the vegetable deterioration due to the dew condensation water generated by the cold radiation from the cooling chamber and to cool and store the vegetables in a better state. It becomes possible.

  According to a second invention, in the first invention, the vegetable room fan and the vegetable cold air inlet are arranged at the lower back of the vegetable room, and an upper part of the vegetable room is provided with a vegetable cold air intake port communicating with the vegetable cold air return port As a configuration.

  As a result, the vegetable room fan can stably and efficiently take cold air into the vegetable room and diffuse or circulate it in the vegetable room. Is possible.

  According to a third invention, in the first invention, the vegetable room fan and the vegetable cold air inlet are disposed on the ceiling of the vegetable room, the vegetable room fan opens a blow-out opening at the upper part of the vegetable room, and the vegetable cold air returns. The mouth is provided at the bottom of the vegetable compartment.

  Thereby, like the said 2nd invention, since a vegetable room fan can take in cold air stably and efficiently in a vegetable room, and can make it diffuse or circulate in the vegetable room, it can control condensation generation more reliably and is good. It becomes possible to cool and preserve the vegetables in the state.

  In a fourth aspect based on the third aspect, the vegetable compartment is arranged in a lower part of the refrigerator compartment, and the vegetable compartment fan is partitioned between the vegetable compartment and the refrigerator compartment to constitute a ceiling of the vegetable compartment. The configuration is arranged so as to be inclined obliquely.

  Thereby, a vegetable room fan can be provided in a vegetable room in the form which secures the volume of a vegetable room, making cooling of a vegetable room efficient. That is, since the refrigeration room is located in the upper part of the vegetable room, the vegetable room is appropriately cooled by the cold radiation from the refrigeration room, and as a result, the partition plate does not need to incorporate a heat insulating material for reinforcing heat insulation. The space can be used to incorporate the vegetable compartment fan, and the vegetable compartment fan is tilted, so it is necessary to greatly increase the thickness of the partition plate even though the vegetable compartment fan is incorporated. The volume of the vegetable compartment can be secured to that extent.

  5th invention is set as the structure which controls a vegetable room fan based on the detection temperature of the vegetable room temperature detection means provided in the vegetable room in the 1st-4th invention.

  As a result, the vegetable room fan can be driven when the temperature of the vegetable room becomes equal to or higher than the predetermined temperature to diffuse or circulate the cold air in the vegetable room, and the vegetable room fan when the temperature becomes higher than the predetermined temperature. By increasing the number of rotations, the diffusion or circulation of cold air and the amount of circulation can be increased, and in the type that incorporates fresh low-temperature cold air, the amount of contamination can be increased, and the vegetable room can be reliably cooled, It is possible to improve the reliability of the refrigerator by eliminating the lack of cooling in the summer and reliably realizing good cold storage of vegetables and the like.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, although this embodiment demonstrates and demonstrates the refrigerator of the type abbreviated as what is called a middle vegetable, this invention is not limited by this.

(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. Sectional drawing, FIG. 12 is a schematic sectional view for explaining the cooling air flow when the cooling fan rotates in the vegetable compartment of the refrigerator in the first embodiment, and FIG. 13 shows the cooling fan stop in the vegetable compartment of the refrigerator in the first embodiment. FIG. 14 is an enlarged front view showing the vegetable compartment and freezer compartment of the refrigerator in the first embodiment, and FIG. 15 is the vegetable compartment and freezer compartment of the refrigerator shown in FIG. 16 is an enlarged front view showing a cooling fan and a cooler installed on the back surface of FIG. 16, FIG. 16 is an enlarged perspective view showing the vegetable compartment of the refrigerator and the back wall portion of the freezer compartment in Embodiment 1, and FIG. FIG. 18 is an exploded perspective view of the rear partition wall block constituting the rear wall portion of the vegetable room shown in FIG. 17, and FIG. Is the freezing shown in FIG. FIG. 20 is a perspective view of a partition plate and a cooling fan for partitioning the storage room and vegetable compartment of the refrigerator in the first embodiment, and FIG. 21 is a perspective view of the partition plate in FIG. FIG. 22 is an exploded perspective view of the cooling fan, FIG. 22 is a perspective view showing a vegetable storage case of the refrigerator in the first embodiment, and FIG. 23 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 the foam heat insulating material 4 such as hard foam urethane filled between the outer box 2 and the inner box 3 is formed. 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 cooling fan 19 forcibly circulates the cold air cooled by the cooler 18 to the refrigerating room 7, the vegetable room 8, and the freezing room 9 to cool each room. For example, the refrigerator compartment 7 is usually cooled to a temperature of 1 ° C. to 5 ° C. at which food is not frozen, 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 range of −22 ° 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.

  As shown in FIG. 20, the cooling fan 19 is attached to a partition plate 6 that partitions the vegetable compartment 8 and the cooling chamber 16, and the partition plate 6 is attached to the inner box 3 of the refrigerator body 1. In this state, as shown in FIGS. 9 and 10, the cooling fan 19 is located at a portion facing the back of the vegetable compartment 8 and blows cool air toward the rear partition wall body 17 that partitions the vegetable compartment 8. And it brings strong cold radiation to the lower back of the vegetable room.

  The partition plate 6 and the cooling fan 19 are configured as shown in the exploded perspective view of FIG. That is, the partition plate 6 is configured by filling the foam heat insulating material 4 (not shown in FIG. 21) between the upper surface member 6a and the lower surface member 6b, and an 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. 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 projecting downward is formed on the lower surface of the opening rear side edge portion of the lower surface member 6b. An upward projecting piece 22 that projects upward from the opening edge of the upper surface member 6a is formed. 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 24 denotes a heat insulating shielding wall that covers the front portion of the opening edge of the opening 20 and is made of foamed polystyrene or the like, and one side piece thereof has a cold air return passage opening 25 provided in the partition plate 6. Corresponding passage openings 26 are 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.

  In the lower space of the cooler 18, 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 FIGS. 9 and 10, the cooling chamber 16 that generates cool air is connected to the cooling chamber cool air conveyance path 30 formed between the rear partition wall body 17 and the refrigerator main body 1. The downstream opens, and 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. Cold air is supplied through 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 directly 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, 8, and 12, the vegetable room 8 is located on the left or right side of the back wall, in this embodiment, on the lower part of the right side when viewed from the front, and returned from the refrigerated cold air return passage 33. A vegetable cold air inlet 44 opened at the passage 38 portion is provided, and a vegetable cold air return port 46 opened to the return passage 38 and connected to the cooling chamber 16 is provided at a position substantially above the vegetable cold air inlet 44. As shown in FIG. 8, the vegetable cold air inlet 44 is provided so as to be located above the lower end of the bell mouth opening of the cooling fan 19, and the low temperature cold air in the cooling chamber 16 is returned to the return passage 38 when the cooling fan 19 is stopped. In the case of reverse flow, cold air is prevented from flowing into the vegetable compartment 8 from the vegetable cold air inlet 44.

  Furthermore, in this vegetable room 8, as shown in FIG. 12, a vegetable room fan 53 made of a propeller fan or the like is disposed in front of the vegetable cold air inlet 44 provided at the lower back of the vegetable room 8.

  The vegetable room fan 53 is located in front of the vegetable cold air inlet 44 and is installed so that the vegetable room fan 53 and the vegetable cold air inlet 44 overlap each other when viewed from the front. In addition, when the amount of cooling of the vegetable compartment 8 is required to be large, it is effective to increase the opening area of the vegetable cold air inlet 44, and when the amount of cooling may be small, it is effective to reduce the opening area of the vegetable cold air inlet 44. In this case, the lower end of the vegetable cold air inlet 44 is provided at a position lower than the upper end of the vegetable compartment fan 53, and is installed so as to overlap in the front and rear.

  Further, the vegetable compartment 8 has a first passage 47a provided with a first vegetable cold air inlet 47 which is open at the upper portion thereof to the vegetable cold air return port 46 and whose front portion is opened into the vegetable compartment 8 at the upper portion thereof. Is formed.

  In addition, in the vegetable compartment 8 of this embodiment, as shown in FIG. 14, FIG. 17, etc., it is an upper part of the rear partition wall body 17 which is the rear face thereof, 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. Further, the vegetable cold air return port 46 communicates with the vegetable cold air return port 46.

  FIG. 18 is an exploded perspective view of the rear partition wall body 17 provided with the second vegetable cold air inlet 51. The front partition plate 17a and the rear partition plate 17b are polymerized through a polystyrene foam (not shown). The vegetable compartment fan 53 is built in the lower part as already stated. The air outlet 54 of the vegetable room fan 53 opens into the vegetable room 8, and cool air from the vegetable cold air inlet 44 and the vegetable room cold air from the first vegetable cold air inlet 47 and the second vegetable cold air inlet 51. Is blown into the vegetable compartment 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 a surface of the back partition wall 17 facing the cooling chamber 16. The second heater 56 is installed in a low-temperature cooling chamber temperature zone that is opposed to the upper portion of the cooling chamber 16 and that is lower than the refrigerator compartment damper 31 that opens and closes the cool air from the cooling chamber 16 to the refrigerator compartment 7. ing.

  Further, in the cooling chamber cool air conveyance path 30 which is in 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 rear partition wall body 17, etc. The connector connection part (box 57 (refer FIG. 15)) of a member is installed, and the electrical connection is made within the cooling chamber cold air | gas conveyance path 30 used as 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.

  Further, the upper opening edge of the upper vegetable storage case 49b of the vegetable storage case 48 is located in the vicinity of the partition plate 5 above the vegetable chamber 8, and the cold air from the vegetable cold air inlet 44 is the upper stage of the vegetable storage case 48. It is configured not to enter directly into the vegetable storage case 49b and the lower vegetable storage case 49a. 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. 22, 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. 23 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 the freezer compartment damper 34 are controlled to open and close, and the compressor 15, the cooling fan 19, and the first and second heaters 23 and 56 as needed 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 temperature detected by the refrigerator compartment temperature detecting means 65 and the vegetable compartment temperature detecting means 66 is always low, and the vegetable compartment fan 53 is driven even when the refrigerator compartment damper 31 is not opened continuously for a certain time or longer. ing.

  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 open and close so that each chamber is maintained in a set temperature range.

  Next, the cooling operation of the vegetable compartment 8 which is a feature of the present invention will be described in detail.

  The vegetable room 8 is cooled by the cold air after cooling from the refrigerated cold air return passage 33 flowing from the vegetable cold air inlet 44 provided in the cold air return passage 38 as shown in FIG.

  Here, in this refrigerator, as shown in FIG. 12, the vegetable room fan 53 is provided in the vegetable room 8, so that a lot of cold air enters the vegetable room 8 from the vegetable cold air inlet 44 by the rotation of the vegetable room fan 53. Is fed 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 flows through the space between the vegetable storage case 48 and the bottom and inner peripheral walls of the vegetable compartment 8 as shown by the solid line arrows in FIG. The cold air flows from the first vegetable cold air inlet 47 and the second vegetable cold air inlet 51 through the first passage 47a and the second passage 51a to the return passage 38 from the vegetable cold air return port 46, Another part of the cold air diffuses and / or circulates in the vegetable compartment 8 as indicated by broken-line arrows.

  On the other hand, when the vegetable compartment fan 53 rotates in a state where all the storage rooms are below the set temperature and the compressor 15 and the cooling fan 19 are stopped, all the cold air stops flowing, and the cold air in the cold return passage 38 is cooled. The flow disappears. In this case, since the ventilation resistance of the first vegetable cold air inlet 47, the second vegetable cold air inlet 51, the first passage 47a, and the second passage 51a is larger than the ventilation resistance in the vegetable chamber 8, the vegetable The room fan 53 diffuses and / or circulates all of the cold air in the vegetable room 8 as indicated by the solid arrows in FIG.

  The cold air diffused and / or circulated by the vegetable room fan 53 is near the lower part of the back of the vegetable room where the temperature is easily lowered by the cold radiation from the cooling room 16 located at the back of the vegetable room 8 and the cold radiation from the freezer room 9 located below. The temperature in the vegetable room 8 is diffused, the temperature in the vegetable room 8 is lowered to cool the vegetable room 8 more effectively, and at the same time, an extremely low temperature and a temperature difference occur near the lower back of the vegetable room. To prevent the occurrence of condensation caused by the cold radiation from the cooling chamber 16 and the freezing chamber 9.

  As described above, this refrigerator prevents the occurrence of dew condensation due to the local low temperature of the vegetable room 8 during both the cooling operation and the cooling stop, so the cooler 18 for generating cold air is increased in size to the cooling room. Even if 16 is a large large-capacity refrigerator that spans the freezer compartment 9 and the vegetable compartment 8, dew condensation due to cold radiation from the cooling compartment 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.

  Moreover, the refrigerator in the present embodiment 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 main body 1 between the refrigerator compartment 7 and the freezer compartment 9. Thus, it is possible to prevent the occurrence of dew condensation and cool and store the vegetables in a good state, and it is possible to improve the usability of the user who is mainly used for taking in and out vegetables and the like.

  In addition, since the vegetable compartment fan 53 is provided in front of the vegetable cold air inlet 44 and at an overlapping position when viewed from the front, the air passage area on the suction side of the vegetable compartment fan 53 can be increased. The wind path resistance can be reduced. Thereby, since more cold air in the vegetable compartment 8 can be diffused and circulated, the effect of suppressing the occurrence of condensation can be further enhanced.

  Further, since the vegetable room fan 53 diffuses or circulates 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 cold air diffused or circulated by the vegetable room fan 53 is generated. It is possible to suppress the flow between the vegetables by entering the lower vegetable storage case 49a and the upper vegetable storage case 49b, and preventing the drying deterioration of the vegetables that are likely to occur due to the cold air flowing between the vegetables. Vegetables can be stored in a cool state.

  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. The effect of preventing the drying deterioration of the vegetables can be further enhanced by bringing the upper opening edge of the upper vegetable storage case 49b closer to the partition plate 5 that also serves as the vegetable room ceiling surface, and if a cover that covers the upper surface opening is provided. Furthermore, it can raise effectively.

  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.

  In addition, in this embodiment, the vegetable storage case 48 divides the inside of the lower vegetable storage case 49a into left and right parts, and a non-vegetable storage part 59 such as a plastic bottle or a pack (hereinafter referred to as a PET bottle storage part 59). The vegetable room fan 53 is provided on the back side of the vegetable room on the side of the PET bottle storage unit 59 so that the cold air in the vegetable room is diffused or circulated toward the PET bottle storage unit 59. Since it is configured, the cool air from the vegetable room fan 53 circulates intensively around the PET bottle storage 59, which efficiently uses the PET bottles and packs stored in the PET bottle storage 59. Can cool well. 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. It is possible to efficiently suppress the rise, effectively prevent the occurrence of condensation, and at the same time, preserve the vegetables well.

  Particularly in this embodiment, 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 compartment fan 53 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. M flows to the vegetable cold air intake 51 of the lower vegetable storage case 49a and the upper vegetable storage while preventing cold air from entering the vegetable compartment case comprising the lower vegetable storage case 49a and the upper vegetable storage case 49b. Cold air can be diffused or circulated in a wide range on the outer periphery of the vegetable case made of the case 49b, and vegetables, plastic bottles, and the like can be effectively cooled.

  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 directly mixed into the refrigerated cold air return passage 33 and supplied into the vegetable compartment 8 from the vegetable cold air inlet 44 via 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 is activated when the refrigerator compartment damper 31 is opened by the output from the refrigerator compartment temperature detecting means 65 to cool the refrigerator compartment 7 and the vegetable compartment 8 and diffuses the cold air in the vegetable compartment 8. Or, although it is circulated, in this embodiment, the temperature is controlled based on the temperature detected by the vegetable room temperature detecting means 66 provided in the vegetable room 8. Even when the vegetable compartment 8 is not heated, it begins to rotate when the temperature of the vegetable compartment 8 becomes equal to or higher than the set temperature, and cold air is diffused or circulated 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.

(Embodiment 2)
FIG. 24 is a schematic cross-sectional view for explaining the cooling air flow when the cooling fan rotates in the vegetable room of the refrigerator according to the second embodiment, and FIG. 25 shows the cooling air flow when the cooling fan stops in the vegetable room of the refrigerator according to the second embodiment. It is a schematic sectional drawing for demonstrating.

  In this embodiment, the vegetable room fan 53 is arranged on the ceiling of the vegetable room 8 together with the vegetable cold air inlet 44, the vegetable room fan 53 opens the outlet 54 in the upper part of the vegetable room, and the vegetable cold air return port 46. Is provided in the lower part of the vegetable compartment 8. The vegetable room fan 53 is disposed in a slanting manner in the partition plate 5 that partitions the vegetable room 8 and the refrigerator room 7 and constitutes the ceiling of the vegetable room 8.

  Thereby, in the refrigerator of this embodiment, when the vegetable compartment fan 53 rotates, the vegetable compartment fan 53 sucks the cold air in the return passage 38 from the vegetable cold air inlet 44 as shown by the solid line arrow in FIG. And the most of the cool air is returned from the vegetable cool air return port 46 to the return passage 38, and the other cool air is diffused and circulated in the vegetable compartment 8 as indicated by the dashed arrows. That is, as in the first embodiment, cold air is taken in stably and efficiently and circulated in the vegetable compartment 8. Further, when the vegetable compartment fan 53 is stopped, as shown by the solid line arrows in FIG. 25, most of the coolers diffuse through the return passage 38 and a part of the cold air diffuses in the vegetable compartment 8 as shown by the broken line arrows. Or and circulate. Therefore, it becomes possible to suppress the occurrence of dew condensation in the vegetable room 8 and cool and store the vegetables in a good state.

  Further, since the vegetable compartment fan 53 is disposed in the partition plate 5 that partitions the vegetable compartment 8 and the refrigeration compartment 7, the vegetable compartment 8 can be efficiently cooled while the volume of the vegetable compartment 8 is secured. Thus, the vegetable room fan 53 can be provided in the vegetable room 8. That is, since the refrigerator compartment 7 is located in the upper part of the vegetable compartment 8, the vegetable compartment 8 is cooled moderately by the cold radiation from this refrigerator compartment 7, As a result, the partition plate 5 is a heat insulating material for heat insulation reinforcement | strengthening. Therefore, the vegetable room fan 53 can be incorporated by utilizing the space, and the vegetable room fan 53 is inclined, so that the vegetable room fan 53 is incorporated. Therefore, it is not necessary to greatly increase the thickness of the partition plate 5, and accordingly the volume of the vegetable compartment 8 can be secured large.

  In this embodiment, not only the cooling chamber 16 but also the cooling chamber cool air conveyance path 30 zone to the cold room damper 31 on the downstream side of the cooling fan in the cooling chamber 16 is the cooling radiation to the back of the vegetable chamber 8. In the present invention, strong cooling radiation is received at a portion facing the cooling chamber temperature zone up to the refrigerating chamber damper 31, and in the present invention, the cooling chamber cooling air conveyance path 30. The temperature range of the cooling chamber including the above is collectively referred to as the cooling chamber 16.

  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.

<Other embodiments>
For example, in the present embodiment, the vegetable room 8 is provided with the vegetable cold air inlet 44 and the vegetable cold air return port 46 provided separately, but these are combined into a cold air outlet, and the front of the cold air outlet is provided. Alternatively, the vegetable room fan 53 may be provided in an offset state. In this case, the cold air in the cool air return passage 38 is sucked and supplied into the vegetable chamber 8 from the opening portion of the vegetable air inlet / outlet which is biased toward the vegetable chamber fan 53 side, and the opening portion biased to the opposite side of the vegetable chamber fan 53 The cold air in the vegetable compartment 8 flows out to the cold air return passage 38. Therefore, although the amount of cold air flowing into and out of the vegetable compartment 8 is reduced, this conversely prevents the entire cold air in the vegetable compartment from being replaced one after another. Therefore, the cold air in the vegetable room 8 is effective because it can retain a large amount of high-humidity cold air containing moisture transpiration from the vegetables, and can prevent the vegetables from drying and deteriorating. In the vegetable compartment 8, as in the above embodiments, the cold air is diffused or circulated in the vegetable compartment by the rotation of the vegetable compartment fan 53, so that the occurrence of condensation can be prevented.

  In the present embodiment, the vegetable room 8 is described as an example of a middle vegetable type refrigerator in which the vegetable room 8 is provided between the refrigerator room 7 and the freezer room 9, but this is a refrigerator of the type in which the vegetable room 8 is at the bottom. Even so, it is sufficient if the cooling room 16 is installed across the back of the vegetable room 8 and the freezing room 9.

  The supply / stop of the cold air to the vegetable room 8 is also performed by using the cold room damper 31. However, the supply / stop may be performed by providing a damper dedicated to the vegetable room. Similarly to the vegetable room fan 53, the supply / stop operation or the supply / stop operation may be performed in conjunction with the vegetable room fan 53 by the outputs of the refrigerator temperature detecting means 65 and the vegetable room temperature detecting means 66.

  Furthermore, although the vegetable room fan 53 illustrated what was controlled by the output from the vegetable room temperature detection means 66 provided in the vegetable room 8, this was controlled in conjunction with the output of the refrigerator compartment temperature detection means 65. Alternatively, the rotation may be intermittently repeated for a predetermined time, and may be appropriately selected according to the characteristics of the refrigerator.

  Furthermore, although the compressor 15 was also installed in the upper rear region of the refrigerator main body 1, this is not limited to that described in the embodiment. For example, the compressor 15 is provided in the lower rear of the refrigerator main body 1. It may be.

  The refrigerator according to the present invention suppresses the occurrence of condensation in the vegetable room even in a refrigerator with a large cooling capacity, can cool and store vegetables in a good state, and is widely applied to refrigerators for business use as well as home use. be able to.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 4 Foam insulation material 5,6 Partition plate 7 Refrigeration room 8 Vegetable room 9 Freezing room 10, 11, 12 Door 14 Machine room 15 Compressor 16 Cooling room 17 Back surface partition wall body 18 Cooling Unit 19 Cooling fan 20 Opening 21 Projection piece 22 Upward projecting piece 23 First heater 24 Heat 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 return passage 33 Refrigerated cold air return passage 34 Freezer compartment damper 35 Refrigerated cold air inlet 36 Refrigerated cold air return port 37 Outward passage 38 Return passage 39 Communication passage 40 Cold air return duct 41 Back wall body 42 Refrigerated cold air inlet 43 Refrigerated cold air return Mouth 44 Vegetable cold air inlet 46 Vegetable cold air return port 47 First vegetable cold air inlet 47a First passage 48 Vegetable harvest 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 passage 53 Vegetable room fan 54 Air outlet 55 Inclined surface 56 Second heater 57 Connector connection part 58 Case divider 59 Non-vegetable storage part (PET bottle storage part)
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

The present invention is intended to provide a refrigerator capable of satisfactorily cooling store vegetables and the like with vegetables compartment.

The refrigerator of the present invention includes a vegetable room, a refrigerator room provided above the vegetable room, a freezer room provided below the vegetable room, a top surface of the vegetable room, and the vegetable room. It is provided with the blower outlet which is provided in the front side and supplies cold air | gas to the said vegetable compartment .

Refrigerator of the present invention, cut with cooled well save the vegetables of vegetables compartment.

Claims (5)

A refrigeration room, a vegetable room, a freezer room, a cooling fan for supplying and circulating cool air generated by the cooler and the cooler in the back of the freezer room and the vegetable room, and the cold air generated by the cooler, etc. A refrigerator equipped with a cooling chamber, wherein the vegetable compartment fan is further provided in the vegetable compartment separately from the cooling fan for circulating cold air to the refrigerator compartment, freezer compartment, vegetable compartment, and the vegetable compartment A cool air return passage that is circulated by the cooling fan is provided on the back surface, and the vegetables communicated with the cold air return passage between the cold air return passage and the vegetable compartment, on the vegetable fan suction side and the exhaust side of the vegetable compartment. A refrigerator with a cold air inlet and a vegetable cold air return port. The refrigerator according to claim 1, wherein the vegetable room fan and the vegetable cold air inlet are arranged at the lower back of the vegetable room, and a vegetable cold air suction port communicating with the vegetable cold air return port is provided at the upper part of the vegetable room. The vegetable room fan and the vegetable cold air inlet are arranged on the ceiling of the vegetable room, the vegetable room fan has a blower opening at the upper part of the vegetable room, and a vegetable cold air return port is provided at the lower part of the vegetable room. The refrigerator described. The vegetable room is arranged at a lower part of the refrigerator compartment, and the vegetable compartment fan is arranged obliquely in a partition plate constituting a ceiling of the vegetable compartment by partitioning between the vegetable compartment and the refrigerator compartment. refrigerator. The refrigerator according to any one of claims 1 to 4, wherein the vegetable room fan is configured to be controlled based on a detected temperature of a vegetable room temperature detecting means provided in the vegetable room.

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