JP6646818B2 - refrigerator - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a refrigerator, and more particularly to a configuration for cooling and storing vegetables in a vegetable room of the refrigerator.

  In general, a home refrigerator is configured such that a plurality of storage rooms having different temperature bands, for example, a refrigerator room, a vegetable room, and a freezer room are provided in a refrigerator main body. The layout of the refrigerator compartment, the vegetable compartment, and the freezer compartment is largely divided into two sections according to the actual use of the user. The other is a type where a vegetable room is arranged in the same part.

  Refrigerators of the type in which a freezing room is arranged in the upper and lower substantially central portions of the refrigerator main body have become the mainstream of today's refrigerators, and have become convenient for users who frequently use frozen foods with changes in lifestyle. There are many proposals (for example, see Patent Document 1).

  FIG. 26 shows a refrigerator described in Patent Document 1, in which a refrigerator compartment 101 is provided at an upper portion of a refrigerator main body 100 and a vegetable compartment 102 is provided at a lower portion, and a freezing compartment 103 is provided at a substantially central portion between the upper and lower sides of the refrigerator main body 100. It is arranged. In this refrigerator, a cooling room 104 is provided on the back of the refrigerator body 100 over a vegetable room 102 and a freezing room 103, and a cooler 105 and a cooling fan 106 are arranged in the cooling room 104. The generated cool air is supplied and circulated by the cooling fan 106 to the refrigerating room 101, the vegetable room 103, and the freezing room 102, and the food stored in each of these rooms is cooled and stored.

  Further, a refrigerator of a type in which a vegetable compartment is arranged at substantially the upper and lower central portions of the refrigerator body is abbreviated as a middle vegetable refrigerator, and has been proposed as being convenient for a user mainly used for putting in and out vegetables and the like (for example, see Patent Reference 1).

  FIG. 27 shows a refrigerator described in Patent Literature 2, in which a refrigerator compartment 201 is provided at an upper portion of a refrigerator main body 200 and a freezing compartment 202 is provided at a lower portion. A chamber 203 is arranged. In the same manner as described above, this refrigerator is also provided with a cooling chamber 204 on the back thereof over the freezing chamber 202 and the vegetable chamber 203 of the refrigerator main body 200, and a cooler 205 and a cooling fan 206 are arranged in the cooling chamber 204. The cool air generated by the cooler 205 is supplied and circulated by the cooling fan 206 to the refrigerating room 201, the vegetable room 203, and the freezing room 202, and the food stored in each of these rooms is cooled and stored.

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

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

  However, the refrigerators described in the above-mentioned conventional patent documents 1 and 2 may cause dew condensation in the vegetable compartments 103 and 203 during the cooling and preservation of the vegetables. There was a problem that it deteriorated.

  That is, the vegetable compartments 103, 203 receive cold radiation from the cooling compartments 104, 204 located on the back side thereof, and the temperature near the rear faces of the vegetable compartments 103, 203 tends to be lowered due to the cold radiation, so that dew condensation occurs in this portion. It happened. Particularly, the vegetable compartments 103 and 203 are supplied with cold air having a relatively high temperature after cooling the refrigerator compartments 101 and 201 as described above. , 203 continue to receive strong cold radiation from the cooling chambers 104, 204 provided at the back, the temperature of the corresponding portion, that is, the temperature of the rear portion facing the cooling chambers 104, 204 decreases, and the temperature decreases between the cold room temperature in the vegetable room. Causes a large temperature difference, and dew condensation occurs near 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 the cold radiation from the cooling chambers 104 and 204 so as not to occur in normal use. However, many vegetables or large vegetables such as cabbage are temporarily stored in the vegetable chambers 103 and 203. When stored in the vegetable compartment, the temperature near the vegetable rises due to the heat of the vegetable, and the temperature difference inevitably increases due to the cold radiation from the cooling chambers 104 and 204, and the cool air in the vegetable compartment is condensed on the wall surface of the vegetable storage case and the like. I started to do it. Especially in recent refrigerators, large-sized plastic bottles and packs of drinking water, tea, and juice have been stored in vegetable storage cases, and the 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 near the vegetables and plastic bottles and the like starts to rise immediately after the storage, and the temperature difference accompanying the cold radiation from the cooling chambers 104 and 204 is large. This tends to cause the vegetable deterioration problem due to condensation of cold air inside the vegetable room.

  Such a problem tends to occur particularly in refrigerators, which are abbreviated as middle vegetables. This is because the refrigerator of the middle vegetable type receives cold radiation from the freezing compartment 202 in which the bottom of the vegetable compartment 203 is located below, so that the cold radiation from the freezing compartment 202 is added and the vegetable compartment is synergized by these two. This is because the temperature in the vicinity of the lower rear portion of the 203 is easily lowered, and it is inevitable in a large refrigerator in which the cooling chamber 204 is located at the rear portion of the vegetable compartment.

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

  As one method for solving such a problem, as disclosed in Japanese Patent Application Laid-Open No. H11-118314, a cooling room is provided only on the back of the freezing room and is not located on the back 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 the cooling capacity cannot be applied to a large-capacity large refrigerator. The problem of vegetable deterioration due to condensation caused by the condensation cannot be solved.

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

Refrigerator of the present invention, a vegetable compartment, a refrigerated chamber, a cooling chamber having a cooler for generating cold air is provided behind the vegetable compartment, the cool air of the cooling chamber for returning the cooling chamber A return passage, and a cool air passage provided on the top surface of the vegetable compartment, wherein the blower communicates with the return passage at the back of the vegetable compartment and supplies cool air to the interior of the vegetable compartment. An outlet is provided in the cold air passage provided on the front side of the vegetable compartment, a return port provided on the back of the vegetable compartment, returning the cool air of the vegetable compartment to the return passage, and the cold air passage. A vegetable compartment fan that sucks cool air from the return passage and sends the sucked cool air to the outlet .

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

Front view of refrigerator according to Embodiment 1 of the present invention Front view when door of refrigerator in Embodiment 1 is opened AA sectional view of FIG. 2 showing the refrigerator in the first embodiment. BB sectional view of FIG. 2 showing the refrigerator in the first embodiment. Half perspective view of a refrigerator in Embodiment 1 Schematic sectional view for describing the flow of cool air in the refrigerator in the first embodiment. Schematic front view for explaining the cool air flow of the refrigerator in the first embodiment. Perspective view illustrating the flow of cold air in the rear part of the cooling chamber of the refrigerator according to the first embodiment. FIG. 3 is an enlarged sectional view of a main part of FIG. 3 showing the refrigerator according to the first embodiment. FIG. 9 is a schematic sectional view for explaining the flow of cold air in FIG. FIG. 4 is an enlarged sectional view of a main part of FIG. 4 showing the refrigerator according to the first embodiment. FIG. 3 is a schematic cross-sectional view for explaining the flow of cool air when the cooling fan rotates in the vegetable compartment of the refrigerator in the first embodiment. FIG. 3 is a schematic cross-sectional view for explaining the flow of cold air when the cooling fan is stopped in the vegetable compartment of the refrigerator in the first embodiment. Enlarged front view showing a vegetable compartment and a freezer compartment of the refrigerator in the first embodiment. Enlarged front view showing a cooling fan and a cooler installed on the back of the vegetable compartment and the freezer compartment of the refrigerator shown in FIG. FIG. 3 is an enlarged perspective view showing a vegetable compartment and a rear wall portion of a freezer compartment of the refrigerator in the first embodiment. FIG. 16 is a perspective view of a back wall block constituting the back wall of the vegetable compartment of the refrigerator shown in FIG. 17 is an exploded perspective view of a back partition wall block constituting the back wall portion of the vegetable compartment shown in FIG. Exploded perspective view of a block constituting a rear wall portion of the freezing compartment shown in FIG. Perspective view of a partition plate and a cooling fan for partitioning a storage room and a vegetable room of a refrigerator in Embodiment 1 Exploded perspective view of the partition plate and the cooling fan in FIG. Perspective view showing a vegetable storage case of a refrigerator according to the first embodiment. Control block diagram of refrigerator in Embodiment 1 Schematic sectional view for explaining the flow of cold air when the cooling fan rotates in the vegetable compartment of the refrigerator in the second embodiment. Schematic sectional view for describing the flow of cold air when the cooling fan of the vegetable compartment of the refrigerator in Embodiment 2 is stopped. Schematic sectional view of a conventional refrigerator Schematic sectional view of another conventional refrigerator

  The first invention includes a refrigerator room, a vegetable room, and a freezer room, and a cooler for generating cool air and a cool air generated by the cooler are provided on the back of the refrigerator room and the vegetable room to the refrigerator room, the vegetable room, and the freezer room. A refrigerator provided with a cooling room having a cooling fan and the like for supplying and circulating, wherein the refrigerator room, the freezing room, and a vegetable room fan are further provided in the vegetable room separately from the cooling fan for circulating cool air in the vegetable room. And a cool air return passage circulated by the cooling fan at the back of the vegetable compartment, and the cool air return passage between the cool 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.

  Thus, in this refrigerator, by rotating the vegetable room fan, the cool air is taken into the vegetable room from the cool air return passage and diffused or circulated in the vegetable room, so that a large temperature difference occurs in the portion receiving the cold radiation from the cooling room. This can prevent the occurrence of dew condensation due to cold radiation from the cooling room, and also increase the size of the cooler for generating cold air, and the large capacity of the cooling room spans the freezing room and the vegetable room. Even if it becomes a refrigerator, it is possible to suppress dew condensation caused by cold radiation from the cooling chamber. Therefore, in refrigerators ranging from small-sized small refrigerators to large-sized large refrigerators, it is possible to suppress vegetable deterioration due to dew condensation water generated by cold radiation from the cooling room and cool and preserve vegetables in a better condition. It becomes possible.

  According to a second aspect of the present invention, in the first aspect, the vegetable room fan and the vegetable cold air inlet are disposed at a lower rear portion of the vegetable room, and a vegetable cold air inlet is provided at the upper portion of the vegetable room to communicate with the vegetable cold air return port. There is a configuration.

  This allows the vegetable room fan to stably and efficiently take in cool air into the vegetable room and diffuse or circulate it in the vegetable room, so that dew condensation is more reliably suppressed and vegetables are cooled and stored in good condition. Becomes possible.

  According to a third invention, in the first invention, the vegetable room fan and the vegetable cold air inlet are arranged on the ceiling of the vegetable room, and the vegetable room fan has an outlet opened at the upper part of the vegetable room, and the vegetable cold air returns. The mouth is located below the vegetable compartment.

  Thereby, similarly to the second aspect, the vegetable room fan can stably and efficiently take in the cool air into the vegetable room and diffuse or circulate the cool air in the vegetable room. The vegetables can be cooled and stored in the state.

  In a fourth aspect based on the third aspect, the vegetable compartment is arranged at a lower portion of the refrigerator compartment, and the vegetable compartment fan separates the vegetable compartment and the refrigerator compartment from each other into a partition plate constituting a ceiling of the vegetable compartment. It is configured to be arranged obliquely.

  Thereby, the vegetable room fan can be provided in the vegetable room in such a manner that the cooling of the vegetable room is made efficient and the volume of the vegetable room is secured. That is, since the refrigerator compartment is located at the top of the vegetable compartment, the vegetable compartment is appropriately cooled by the cold radiation from the refrigerator compartment, and as a result, the partition plate does not need to incorporate heat insulating material for heat insulation enhancement. The vegetable room fan can be installed using the space, and the vegetable room fan is arranged at an angle. Therefore, it is necessary to greatly increase the thickness of the partition plate despite incorporating the vegetable room fan. And the volume of the vegetable room can be increased accordingly.

  In a fifth aspect based on the first to fourth aspects, the vegetable room fan is controlled based on a temperature detected by a vegetable room temperature detecting means provided in the vegetable room.

  Thereby, the vegetable room fan can be driven to diffuse or circulate the cool air in the vegetable room when the temperature of the vegetable room becomes equal to or higher than the predetermined temperature, and the vegetable room fan can be circulated when the temperature becomes higher than the predetermined temperature. By increasing the number of rotations to increase the amount of diffusion or circulation of cold air, furthermore, in the type that takes in and mixes fresh low-temperature cold air, the mixing amount can also be increased and the vegetable room can be cooled reliably, Insufficiency of cooling in summer can be eliminated, and good cooling and preservation of vegetables and the like can be reliably realized, and the reliability of the refrigerator can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in this embodiment, a refrigerator of a type abbreviated as a so-called middle vegetable will be described as an example, but the present invention is not limited thereto.

(Embodiment 1)
FIG. 1 is a front view of a refrigerator according to the first embodiment of the present invention, FIG. 2 is a front view when the door of the refrigerator in the first embodiment is opened, and FIG. 4 is a cross-sectional view taken along the line BB of FIG. 2 showing the refrigerator according to the first embodiment, FIG. 5 is a half perspective view of the refrigerator according to the first embodiment, and FIG. 1 is a schematic cross-sectional view for explaining the flow of cool air of the refrigerator in FIG. 1, FIG. 7 is a schematic front view for explaining the flow of cool air in the refrigerator in Embodiment 1, and FIG. FIG. 9 is an enlarged cross-sectional view of the essential part of FIG. 3 showing the refrigerator in the first embodiment, FIG. 10 is a schematic cross-sectional view for explaining the cold air flow in FIG. 9, and FIG. FIG. Sectional view, FIG. 12 is a schematic cross-sectional view for explaining the flow of cold air when the cooling fan rotates in the vegetable compartment of the refrigerator in the first embodiment, and FIG. 13 stops the cooling fan in the vegetable compartment of the refrigerator in the first embodiment. FIG. 14 is an enlarged front view showing a vegetable compartment and a freezer compartment of the refrigerator according to the first embodiment, and FIG. 15 is a vegetable compartment and a 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 of the refrigerator, FIG. 16 is an enlarged perspective view showing a rear wall portion of a vegetable compartment and a freezing compartment of the refrigerator in the first embodiment, and FIG. FIG. 18 is a perspective view of a rear partition wall block constituting the rear wall portion of the vegetable compartment of the refrigerator shown in FIG. 18. FIG. 18 is an exploded perspective view of a rear partition wall block constituting the rear wall portion of the vegetable compartment shown in FIG. Is the refrigeration shown in FIG. FIG. 20 is an exploded perspective view of a block constituting a rear wall portion of FIG. 20, FIG. 20 is a perspective view of a partition plate and a cooling fan for partitioning a storage room and a vegetable room of a refrigerator in Embodiment 1, and 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 overall configuration of the refrigerator will be described.

<Refrigerator body configuration>
1 to 6, the refrigerator according to the present embodiment includes a refrigerator body 1 having an open front, and the refrigerator body 1 includes an outer box 2 mainly using a steel plate as shown in FIG. It comprises an inner box 3 molded of a hard resin such as ABS, and a foam insulating material 4 such as hard urethane foam filled between the outer box 2 and the inner box 3. The refrigerator body 1 is divided into a plurality of storage rooms by a partition plate 5.6, a refrigerator room 7 at the top of the refrigerator body 1, a vegetable room 8 below the refrigerator room 7, and a freezer room at the bottom. 9 are arranged, and it is a refrigerator of the middle vegetable room type. A front opening of each of the storage rooms 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 an upper rear area of the refrigerator body 1. The machine room 14 houses high-pressure side components of the refrigeration cycle such as a compressor 15 and a dryer (not shown) for removing moisture.

  Further, a cooling chamber 16 for generating cool air is provided on the back of the refrigerator body 1. The cooling room 16 is formed from the back of the freezing room 9 to the lower back of the vegetable room 8. Between the vegetable room 8 and the vegetable room 8, there is provided a rear partition wall 17 having thermal insulation with styrene foam or the like. Insulated partition.

  A cooler 18 is provided in the cooling chamber 16, and a cooling fan 19 is provided above the cooler 18. The cooling fan 19 cools each room by forcibly circulating the cool air cooled by the cooler 18 to the refrigerator compartment 7, the vegetable compartment 8, and the freezing compartment 9. For example, the refrigerator compartment 7 is usually cooled to a temperature of 1 ° C. to 5 ° C. at which the food does not freeze, and the vegetable compartment 8 is cooled to a temperature of 2 ° C. to 7 ° C. which is equal to or slightly higher than that of the refrigerator compartment 7. Further, the freezing compartment 9 is usually cooled to a freezing temperature range of −22 ° C. to −15 ° C. for freezing storage, and in some cases, for example, a low temperature of −30 ° C. or −25 ° C. May be cooled.

  As shown in FIG. 20, the cooling fan 19 is mounted on a partition plate 6 for partitioning the vegetable room 8 and the cooling room 16, and the partition plate 6 is mounted on the inner box 3 of the refrigerator body 1 by setting. In this state, the cooling fan 19 is located at a portion facing the back surface of the vegetable compartment 8 as shown in FIGS. 9 and 10, and blows cool air toward the inner partition wall 17 that partitions between the vegetable compartment 8 and the cooling fan. Then, strong cold radiation is brought to the lower back of the vegetable compartment.

  The partition plate 6 and the cooling fan 19 are configured as shown in an exploded perspective view of FIG. That is, the partition plate 6 is formed by filling the foamed heat insulating material 4 (not shown in FIG. 21) between the upper surface member 6a and the lower surface member 6b, and has an opening 20 on the back side. . The cooling fan 19 described above is assembled above the opening 20, and the cooler 18 of the cooling chamber 16 is located below the opening. The opening 20 is formed to be larger than the projected area of the upper surface of the cooler 18 located therebelow, 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. Upward projecting pieces 22 projecting above the opening edge of the upper surface member 6a are formed respectively. Further, a first heater 23 for preventing dew condensation, such as a sheathed heater, is buried in the partition plate 6 in a portion which is a bottom surface of the vegetable compartment ahead of the cooling fan 19.

  In the figure, reference numeral 24 denotes a heat insulating barrier covering the front part of the opening edge of the opening 20 and is made of styrene foam or the like. One side piece of the opening 25 for the cool air return passage provided in the partition plate 6 is provided. And a passage opening 26 corresponding to. Further, a tank installation portion 27 for supplying water to the ice making device provided in the freezing compartment 9 is formed in 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 removing frost and ice adhering to the cooler 18 and its surroundings is arranged as shown in FIG. A drain pan 29 for receiving defrost water generated during defrost is disposed below 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.

  Next, the cool air circulation configuration will be described.

<Cool air circulation passage configuration>
As shown in FIGS. 9 and 10, the cooling chamber 16 for generating cool air is provided with a cooling fan 19 in a cooling chamber cool air transport path 30 formed between the above-described rear wall 17 and the refrigerator body 1. The downstream side is open, and cool air is blown to each room via the cool air transfer path 30.

  The upper part of the cooling room cold air transfer path 30 is provided with a refrigerated cool air passage 32 formed substantially at the center of the rear surface of the refrigeration room 7 via a refrigeration room damper 31 as shown in FIGS. Is in communication with As shown in FIGS. 7 and 8, a refrigerated cool air return passage 33 from the refrigerated room 7 is provided adjacent to the refrigerated cool air outgoing passage 32, and a lower portion thereof communicates with the vegetable room 8 and the cooling room 16. I have.

  As shown in FIG. 7, the refrigeration compartment 7 is provided with a refrigerated cold air inlet 35 for a refrigerated cold air passage 32 at an appropriate location on the back wall, and a refrigerated cold air opening to the refrigerated cold air return passage 33 at a suitable location on the bottom wall. A return port 36 is provided, and cool air from the cooling chamber 16 is supplied to the refrigerated cold air passage 32 through the refrigerated chamber damper 31, and is supplied to the refrigerated chamber 7 from the refrigerated cold air inlet 35. On the other hand, the cold air after the cooling in the refrigerator compartment is supplied to the vegetable compartment 8 from the refrigerator cold air return port 36 through the refrigerator cold air return passage 33 and circulates to the cooling compartment 16. The refrigerating chamber 7 is provided with a partial chamber at a lower portion thereof as described later. The partial chamber has a partial chamber damper 31a, a partial chamber cold air passage 32a, a partial chamber cold air inlet as shown in FIG. Cool air is supplied through 35a.

  In this embodiment, as is clear from FIG. 8, the cooling room cold air transport path 30, the refrigerated cool air passage 32, and the partial room cold air passage 32a are provided on the back surface of the back partition wall 17 and the partition plate 6. And a return passage 38 connecting the refrigerated cool air return passage 33, the vegetable compartment 8 and the cooling room 16 are formed. The refrigerating room damper 31 is provided in the outgoing passage 37. .

  A communication path 39 is formed between the refrigerated cool air return passage 32 and the refrigerated cool air return passage 33 so that a part of the low-temperature cold air flowing through the refrigerated cool air return passage 32 directly enters the refrigerated cool air return passage 33. Is configured.

  As shown in FIG. 8, a cool 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 freezing chamber 9. The upper part communicates with the vegetable compartment 8 via the return passage 38, and the lower part is opened near the lower part of the cooling chamber 16, and the cool air after cooling the vegetable chamber 8 is opened at the lower part through the cool air return duct 40. To the cooling chamber 16.

  On the other hand, as shown in FIG. 10, the freezing room 9 has a freezing / cooling air inlet 42 communicating with a lower part of the cooling room cool air conveyance path 30 at the upper part of the back wall 41 and the lower part of the cooling room. A freezing / cooling air return port 43 is formed at the lower part of the cooling room 16. Cooling air from the cooling room 16 is supplied from a lower portion of the cooling room cool air transfer path 30 via a freezing / cooling air inlet 42. Circulating to the cooling chamber 16 through the cool air return port 43.

<Vegetable room configuration>
As shown in FIGS. 7, 8, and 12, the vegetable compartment 8 is located on one of the right and left sides of the back wall, in this embodiment, the lower portion on the right side when viewed from the front, and returns from the refrigerated cold air return passage 33. A vegetable cool air inlet 44 is provided in the passage 38, and a vegetable cool air return port 46 which opens to the return passage 38 and is connected to the cooling chamber 16 is provided substantially above the vegetable cool air inlet 44. As shown in FIG. 8, the vegetable cool 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 when the cooling fan 19 stops, low-temperature cool air in the cooling chamber 16 returns to the return passage 38. When the air flows backward, cool air is prevented from flowing into the vegetable room 8 from the vegetable cool air inlet 44.

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

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

  Furthermore, the vegetable compartment 8 has a first passage 47a provided with a first vegetable cool air inlet 47 having a rear portion opening at the upper portion thereof and opening into the vegetable cold air return port 46 and a front portion opening into the vegetable compartment 8. Is formed.

  In addition, in the vegetable compartment 8 of this embodiment, as shown in FIG. 14, FIG. 17, etc., it is the upper part of the inner partition wall 17 which is the inner surface and is at the diagonal position of the vegetable cool air inlet 44. A second vegetable cool air suction port 51 is provided in the upper part on the left rear side in this embodiment, and a second passage 51a provided with the second vegetable cool air suction port 51 is also shown in FIG. And communicates with the vegetable cool air return port 46.

  FIG. 18 is an exploded perspective view of the rear partition wall 17 provided with the second vegetable cool air suction port 51. The front partition plate 17a and the rear partition plate 17b are polymerized via styrene foam (not shown). A vegetable compartment fan 53 is incorporated in the lower part thereof as described above. The outlet 54 of the vegetable room fan 53 is open in the vegetable room 8, and the cool air from the vegetable cool air inlet 44 and the cool air from the first vegetable cool air inlet 47 and the second vegetable cool air inlet 51. Is blown into the vegetable room 8. The outlet 54 of the vegetable compartment fan 53 is open toward the rear surface of a lower vegetable storage case 49a described later, and the lower rear portion of the lower vegetable storage case 49a facing the vegetable compartment fan 53 is positioned forward as it goes downward. It is configured such that the cool air from the vegetable room fan 53 flows intensively into the lower surface space of the lower vegetable storage case 49a.

  As shown in FIG. 10, a second heater 56 for preventing dew condensation, such as a sheathed heater, is embedded in the surface of the inner wall 17 facing the cooling chamber 16. The second heater 56 is installed in a low-temperature cooling chamber temperature band at a position facing the upper portion of the cooling chamber 16 and below the refrigerator compartment damper 31 that opens and closes cool air from the cooling chamber 16 to the refrigerator compartment 7. ing.

  Further, the cooling fan 19, the first heater 23 in the partition plate 6, the second heater 56 in the rear partition wall 17, and the like are provided in the cooling room cold air conveyance path 30 which is the low temperature cooling chamber temperature band. A connector connection portion (box 57 (see FIG. 15)) of the member is provided, and an electrical connection is made in the cooling room cold air conveyance path 30 which is the cooling room temperature band.

  A vegetable storage case 48 is disposed in the vegetable room 8 as shown in FIG. 11 and the like. 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. And an upper vegetable storage case 49b placed on the storage case 49a. The vegetable room 8 is provided with a space between the vegetable storage case 48 and the partition plate 6 therebelow and the inner peripheral wall surface of the vegetable room 8, and the space is an air passage through which the cool air from the vegetable cool air inlet 44 flows. Is composed.

  Further, the upper opening edge of the upper vegetable storage case 49b of the vegetable storage case 48 is located in a portion adjacent to the partition plate 5 at the upper part of the vegetable compartment 8, and the cool air from the vegetable cool air inlet 44 is supplied to the upper stage of the vegetable storage case 48. It is configured not to directly enter the vegetable storage case 49b and the lower vegetable storage case 49a. A lid for closing the upper vegetable storage case 49b may be provided at the upper opening of the upper vegetable storage case 49b to more reliably prevent cold air from entering the vegetable storage case 48.

  The lower vegetable storage case 49a is divided into left and right parts by a case partitioning plate 58 as shown in FIG. 22. And a non-vegetable storage unit 59 (hereinafter, referred to as a storage unit such as a PET bottle) for packing. The plastic bottle storage section 59 may partition the inside of the vegetable compartment 8 back and forth, and the front portion thereof may be used as a plastic bottle storage section.

<Refrigerator configuration>
The refrigerating room 7 has a plurality of storage shelves 60 therein as shown in FIG. 4 and the like, and has a partial room 61 which can be cooled to a quasi-refrigerated temperature zone. An opening 36 (all shown in FIG. 7) is provided. An operation section 62 is provided at an appropriate position on the side wall of the refrigerating room 7 for setting the internal temperature of each room, ice making, rapid cooling, and the like.

<Freezer configuration>
Also. As described above with reference to FIG. 10, the freezing compartment 9 is formed with a freezing / cooling air inlet 42 communicating with the lower portion of the cooling room cool air conveyance path 30 at the back of the back wall 17 at the upper portion of the back wall. A freezing / cooling air return port 43 communicating with the freezing chamber 9 is formed in the cooling chamber 9. Although not shown in the structural drawing, a freezer compartment 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 case 63 mounted on the frame of the door 12 as shown in FIG. 4 and the like. It has been incorporated.

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

<Control configuration>
FIG. 23 shows a control block diagram of the refrigerator of the present embodiment, wherein 65 is a refrigerator room temperature detecting means, 66 is a vegetable room temperature detecting means, 67 is a freezing room temperature detecting means, and both are formed by thermistors. The refrigerator room 7, the vegetable room 8, and the freezer room 9 are installed at appropriate places, respectively. Reference numeral 68 denotes a control unit for integrally controlling the whole refrigerator, which is constituted by a microcomputer or the like. The control unit 68 is based on the output from the refrigerator temperature detecting means 65 and the freezing room temperature detecting means 67, and according to control software pre-installed therein. Opening / closing control of the damper 31 and the freezing room damper 34 is performed, and the compressor 15, the cooling fan 19 and, if necessary, the first and second heaters 23 and 56 are driven to control each chamber to a set temperature. Further, the controller 68 controls the operation of the vegetable room fan 53 incorporated in the vegetable room passage section 50 of the vegetable room 8 based on the outputs from the refrigerator room temperature detecting means 65 and the vegetable room temperature detecting means 66. . Specifically, the vegetable room fan 53 is driven when one of the temperatures detected by the refrigerator room temperature detecting means 65 and the vegetable room temperature detecting means 66 is higher than the set temperature.

  Furthermore, the temperature of the refrigerator compartment temperature detecting means 65 and the temperature detected by the vegetable compartment temperature detecting means 66 are always low, and the vegetable compartment fan 53 is driven even when the refrigerator compartment damper 31 is not opened for a certain period of time or more. ing.

  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 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 and liquefied to some extent in a condenser (not shown), and furthermore, refrigerant pipes (not shown) disposed on the side and rear surfaces of the refrigerator and on the front opening of the refrigerator. And condensed and liquefied while preventing dew condensation in the refrigerator, and reaches a capillary tube (not shown). Thereafter, in the capillary tube, the pressure is reduced while exchanging heat with a suction pipe (not shown) to the compressor 15 to become a low-temperature low-pressure liquid refrigerant, which reaches the cooler 18 in the cooling chamber.

  Here, the refrigerant in the cooler 18 evaporates and evaporates, and cool air for cooling each storage room is generated in the cooling chamber 16 having the cooler 18.

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

  The low-temperature cold air generated in the cooling room 16 is sent from the cooling room cool air conveyance path 30 to the refrigerator room 7 and the freezing room 9 by the cooling fan 19, and the cool air supplied to the refrigerator room 7 cools the refrigerator room 7. After that, it is supplied to the vegetable room 8 and each room is cooled to the set temperature. Then, the cool air after cooling each chamber returns to the cooling chamber 16 again, is cooled by the cooler 18, and is circulated to each chamber by the cooling fan 19. In addition, the controller 68 controls the operation of the compressor 15 and the cooling fan 19 based on the temperatures detected by the refrigerator temperature detecting means 65 and the freezing room temperature detecting means 67, and supplies the cold air to each chamber. The freezer compartment damper 34 is controlled to open and close so that each compartment is maintained at a set temperature zone.

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

  As shown in FIG. 12, the vegetable room 8 is cooled by flowing cool air from the cool room return passage 33 through the cool vegetable inlet 44 provided in the cool air return passage 38 as shown in FIG.

  Here, in this refrigerator, as shown in FIG. 12, a vegetable compartment fan 53 is provided in the vegetable compartment 8, so that the rotation of the vegetable compartment fan 53 causes a large amount of cold air to enter the vegetable compartment 8 from the vegetable cold air inlet 44. Is supplied from the outlet 54 of the vegetable compartment fan 53 toward the rear surface of the lower vegetable storage case 49a in the vegetable compartment 8.

  The cold air supplied toward the lower vegetable storage case 49a of the vegetable room 8 flows through the space between the vegetable storage case 48 and the bottom surface and the inner peripheral wall of the vegetable room 8 as indicated by solid arrows in FIG. The cold air flows out of 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, The other part of the cool air diffuses or circulates in the vegetable compartment 8 as shown by the dashed arrow.

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

  The cool air diffused or circulated by the vegetable room fan 53 is in the vicinity of the lower portion of the rear of the vegetable room which is likely to be cooled by the cold radiation from the cooling room 16 located on the back of the vegetable room 8 and the cold radiation from the freezing room 9 located below. Is diffused into the vegetable compartment 8, and the temperature in the vegetable compartment 8 is lowered to cool the vegetable compartment 8 more effectively. This prevents the occurrence of dew 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 lowering of the temperature of the vegetable room 8 in both the cooling operation and the cooling stop. Even if 16 is a large-sized refrigerator having a large capacity that spans the freezing room 9 and the vegetable room 8, it is possible to suppress dew condensation caused by cold radiation from the cooling room 16. Therefore, in refrigerators ranging from small-sized small refrigerators to large-sized large refrigerators, it is possible to suppress vegetable deterioration due to dew condensation water generated by cooling radiation from the cooling chamber 16 and cool and preserve vegetables in a good state. It becomes possible.

  In addition, the refrigerator in the present embodiment is a middle vegetable room type refrigerator in which the vegetable compartment 8 is provided at approximately the upper and lower central portions of the refrigerator main body 1 between the refrigerator compartment 7 and the freezer compartment 9. As described above, it is possible to prevent the occurrence of dew condensation and cool and preserve the vegetables in a good state, and to enhance the usability of a user mainly used for taking in and out vegetables and the like, which is effective.

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

  Further, 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. It is possible to prevent the vegetables from entering the lower vegetable storage case 49a and the upper vegetable storage case 49b and flowing between the vegetables, and to prevent the drying and deterioration of the vegetables, which are likely to be caused by the cool air flowing between the vegetables, to be fresh and good. The vegetables can be stored in a cool condition.

  In particular, in this embodiment, the first vegetable cold air suction port 47 which also serves as a cold air suction port for diffusing or circulating in the vegetable compartment above the vegetable storage case 48 composed of the lower vegetable storage case 49a and the upper vegetable storage case 49b. And the second vegetable cool air suction port 51 is provided, so that the cool air diffusing or circulating in the vegetable compartment 8 does not enter into the vegetable storage case 48 composed of the lower vegetable storage case 49a and the upper vegetable storage case 49b. It flows to the first vegetable cold air suction port 47 and the second vegetable cold air suction port 51, so that drying and deterioration of vegetables can be prevented more reliably, and vegetables can be cooled and stored in a fresh and good state. The effect of preventing the drying and 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, which also serves as the ceiling of the vegetable compartment, and if a lid that covers the upper opening is provided. It can be more effectively increased.

  In addition, since the vegetable room fan 53 is located below the upper opening edge of the vegetable storage case 48 composed of the lower vegetable storage case 49a and the upper vegetable storage case 49b, it is blown from the vegetable room fan 53. The cool air diffuses or circulates in the vicinity of the bottom surface and the lower periphery of the lower vegetable storage case 49a in the vegetable storage case 48. Therefore, the cool air diffused or circulated by the vegetable room fan 53 is further difficult to enter the vegetable storage case 48, and the drying and deterioration of the vegetables caused by the cool air entering and circulating in the vegetable storage case 48 is reduced from this point. Can be reliably prevented, and the vegetables can be cooled and stored in a fresher and better condition.

  In addition, in this embodiment, the vegetable storage case 48 partitions the inside of the lower vegetable storage case 49a left and right, and one of the non-vegetable storage portions 59 such as a plastic bottle or a pack (hereinafter referred to as a plastic bottle storage portion 59). A vegetable room fan 53 is provided on the back of the vegetable room on the side of the plastic bottle storage section 59 to diffuse or circulate cold air in the vegetable room toward the plastic bottle storage section 59. Since it is configured, the cool air from the vegetable room fan 53 intensively circulates around the storage section 59 such as a plastic bottle, so that the plastic bottles and packs stored in the storage section 59 such as the plastic bottle can be efficiently used. Can be cooled well. In particular, drinking water, such as a plastic bottle or a pack, stored in the plastic bottle storage section 59 is effective because it has a larger heat capacity and is harder to cool than vegetables. The rise can be suppressed efficiently, and the occurrence of dew condensation can be effectively prevented, and at the same time, the vegetables can be stored well.

  In particular, in this embodiment, the first vegetable cold air inlet 47 provided in the vegetable room 8 together with the vegetable room fan 53 is also provided in the portion of the vegetable storage case 48 on the side of the storage portion 59 such as a plastic bottle. The cool air from the vegetable room fan 53 can be efficiently and intensively circulated to the storage part such as a plastic bottle, which is effective.

  Also, since the second vegetable cold air suction port 51, which is another suction port for circulating the cool air in the vegetable compartment 8, is provided at the upper portion of the vegetable compartment substantially diagonally to the vegetable compartment fan 53, The cool air from the vegetable compartment fan 53 diffuses or circulates while diagonally traversing the inside of the vegetable compartment 8 to the front through the bottom portion of the plastic bottle or the like storage portion 59 of the vegetable storage case 48, and circulates through the second portion at the top of the vegetable compartment Flows into the vegetable cold air suction port 51 of the lower vegetable storage case 49a and the upper vegetable storage case 49b while preventing cold air from entering the vegetable room case composed of the lower vegetable storage case 49a and the upper vegetable storage case 49b. Cold air can be diffused or circulated widely over the outer periphery of the vegetable case composed of the case 49b, and the vegetables and plastic bottles can be effectively cooled.

  Further, in this refrigerator, a communication path 39 is formed between the refrigerated cool air passage 32 and the refrigerated cool air return passage 33, and when the vegetable room fan 53 rotates, the low temperature inside the refrigerated cool air passage 32 by the suction force. Fresh cool air is directly mixed into the refrigerated cool air return passage 33 and supplied to the vegetable compartment 8 from the vegetable cool air inlet 44 via the return passage 38. In other words, the vegetable compartment 8 is cooled by the return cold air having a relatively high temperature after the refrigerator compartment is cooled from the refrigerator compartment 7, and in this refrigerator, the rotation of the vegetable compartment fan 53 causes the cool air after the refrigerator compartment to cool. The vegetable room 8 is cooled by the low-temperature cold air mixed with the low-temperature fresh cold air.

  Therefore, the vegetable room 8 can be effectively cooled, and the vegetable room 8 can be reliably cooled even when the cooling load condition is poor, for example, when many vegetables and plastic bottles are temporarily stored. be able to. Further, the amount of low-temperature fresh cool air taken in through the communication passage 39 can be increased by increasing the rotation speed of the vegetable room fan 53, and a large amount of room-temperature PET bottles and the like having a large heat capacity in summer are stored. Even at times, this can be reliably cooled. In addition, 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 suppressed efficiently, and the vegetables can be cooled and stored in a favorable state.

  The vegetable compartment fan 53 operates when the refrigerator compartment damper 31 is opened and the refrigerator compartment 7 and the vegetable compartment 8 are cooled by the output from the refrigerator compartment temperature detecting means 65 to diffuse cold air in the vegetable compartment 8. In this embodiment, since the temperature is controlled based on the temperature detected by the vegetable room temperature detecting means 66 provided in the vegetable room 8, the cooling operation is performed when the temperature of the refrigerator room 7 is high. When the temperature of the vegetable compartment 8 becomes equal to or higher than the set temperature even when the temperature is not higher, rotation starts, and cool air is diffused or circulated in the vegetable compartment 8. Therefore, when the temperature of the vegetable compartment increases and a large temperature difference is generated due to the cold radiation from the cooling compartment 16 and the condition where dew condensation is likely to occur, the vegetable compartment fan 53 rotates to eliminate this, and the dew condensation is effectively generated. Can be prevented.

  If the temperature of the vegetable compartment 8 becomes higher than the second set temperature which is set slightly higher than the set temperature despite the rotation of the vegetable compartment fan 53, the vegetable compartment fan By increasing the number of revolutions of 53, the amount of diffusion or circulation of cool air can be enhanced, and the amount of cold fresh air taken in and mixed can be increased, so that the vegetable compartment 8 can be reliably cooled. Therefore, the cooling shortage in summer can be resolved, and good cooling and preservation of vegetables and the like can be reliably realized, and the reliability of the refrigerator can be improved.

(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. FIG. 25 is the cold air flow when the cooling fan stops in the vegetable room of the refrigerator according to the second embodiment. FIG. 3 is a schematic cross-sectional view for explaining the method.

  In this embodiment, the vegetable room fan 53 is arranged on the ceiling of the vegetable room 8 together with the vegetable cool air inlet 44, and the vegetable room fan 53 opens the outlet 54 at the upper part of the vegetable room and has a vegetable cool air return port 46. Is provided below the vegetable compartment 8. The vegetable room fan 53 partitions the space between the vegetable room 8 and the refrigeration room 7 and is disposed obliquely in the partition plate 5 constituting the ceiling of the vegetable room 8.

  Thereby, in the refrigerator of this embodiment, when the vegetable room fan 53 rotates, the vegetable room fan 53 sucks the cool air in the return passage 38 from the vegetable cool air inlet 44 as shown by the solid arrow in FIG. And the majority of the cool air is returned from the vegetable cool air return port 46 to the return passage 38, while the other cool air is diffused and circulated into the vegetable compartment 8 as shown by the dashed arrow. That is, similarly to the first embodiment, cool air is stably and efficiently taken in and circulated in the vegetable room 8. Also, when the vegetable room fan 53 is stopped, most of the coolers are diffused through the return passage 38 as shown by the solid line arrows in FIG. Or and circulate. Therefore, it is possible to suppress the occurrence of dew condensation in the vegetable compartment 8 and cool and preserve the vegetables in a good condition.

  In addition, since the vegetable room fan 53 is disposed in the partition plate 5 that separates the vegetable room 8 and the refrigerator compartment 7, the cooling of the vegetable room 8 is ensured and the volume of the vegetable room 8 is secured. The vegetable room fan 53 can be provided in the vegetable room 8 in such a manner. That is, since the refrigerator compartment 7 is located above the vegetable compartment 8, the vegetable compartment 8 is appropriately cooled by the cold radiation from the refrigerator compartment 7, and as a result, the partition plate 5 is made of a heat insulating material for enhancing heat insulation. It is not necessary to incorporate the vegetable room fan 53, so that the vegetable room fan 53 can be incorporated by utilizing the space, and since the vegetable room fan 53 is arranged at an angle, the vegetable room fan 53 is installed. Therefore, it is not necessary to increase the thickness of the partition plate 5 greatly, and the volume of the vegetable room 8 can be ensured accordingly.

  In addition, in this embodiment, the cold radiation to the back of the vegetable room 8 is not limited to the cooling room 16, but in this embodiment, the cooling room cold air transport path 30 band to the refrigerator room damper 31 on the downstream side of the cooling fan of the cooling room 16 is formed by the cooling room 16. The cold room temperature range is the same as that of the cold room, and the portion facing the cool room temperature band up to the cold room damper 31 receives strong cold radiation. Is generally referred to as a cooling chamber 16.

  As described above, the embodiments of the present invention have been described. However, the configuration described in the above embodiments is shown as an example for carrying out the present invention, and various changes can be made within a range that achieves the object of the present invention. Needless to say.

<Other embodiments>
For example, in the present embodiment, an example is described in which the vegetable cold air inlet 44 and the vegetable cold air return port 46 are separately provided in the vegetable room 8. The vegetable room fan 53 may be provided in an offset state. In this case, the cool air in the cool air return passage 38 is sucked and supplied into the vegetable room 8 from the opening portion of the vegetable air inlet / outlet that is biased toward the vegetable room fan 53 side, and the opening portion biased to the opposite side to the vegetable room fan 53. Then, the cool air in the vegetable room 8 flows out to the cool air return passage 38. Therefore, although the amount of cold air flowing into and out of the vegetable compartment 8 is reduced, this suppresses the reverse replacement of all the cool air in the vegetable compartment one after another. Therefore, as the cool air in the vegetable room 8, a large amount of high-humidity cool air including moisture evaporating from the vegetables is held, and drying and deterioration of the vegetables can be prevented, which is effective. Then, in the vegetable compartment 8, as in the above-described embodiments, the cool air is diffused or circulated in the vegetable compartment by the rotation of the vegetable compartment fan 53, so that the occurrence of dew condensation can be prevented.

  Also, in the present embodiment, a description has been given by taking as an example a middle vegetable type refrigerator in which the vegetable compartment 8 is provided between the refrigerator compartment 7 and the freezing compartment 9, but this is a refrigerator in which the vegetable compartment 8 is at the bottom. Even if it is, what is necessary is just a thing provided with the cooling room 16 over the back of the vegetable room 8 and the freezing room 9.

  In addition, the supply / stop of the cool air to the vegetable compartment 8 is performed using the refrigerator compartment damper 31 as well. However, the supply / stop may be performed by providing a damper dedicated to the vegetable compartment. As in the case of 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 compartment temperature detecting means 65 and the vegetable room temperature detecting means 66 in the same manner as the vegetable room fan 53.

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

  Furthermore, although the compressor 15 has been described as being installed in the upper rear area of the refrigerator main body 1, this is not limited to the one described in the embodiment, and for example, the compressor 15 is provided in the lower rear of the refrigerator main body 1. It may be.

  INDUSTRIAL APPLICABILITY The refrigerator according to the present invention can suppress the occurrence of dew condensation in the vegetable compartment even if the refrigerator 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.

DESCRIPTION OF SYMBOLS 1 Refrigerator main 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 Door 14 Machine room 15 Compressor 16 Cooling room 17 Back partition wall 18 Cooling Device 19 Cooling fan 20 Opening 21 Projecting piece 22 Upward projecting piece 23 First heater 24 Heat insulating barrier 25 Opening for cool air return passage 26 Passage opening 27 Tank installation section 28 Defrost heater 29 Drain pan 30 Cooling room cold air transfer path 31 Refrigeration Room damper 32 Refrigerated cold air passage passage 33 Refrigerated cold air return passage 34 Freezer compartment damper 35 Refrigerated cold air inlet 36 Refrigerated cold air return port 37 Outgoing passage 38 Return passage 39 Continuous passage 40 Cold air return duct 41 Back wall 42 Refrigerated cold air inlet 43 Refrigerated cold air return Mouth 44 Vegetable cool air inlet 46 Vegetable cool air return port 47 First vegetable cool 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 Channel 53 Vegetable Room Fan 54 Blow Out 55 Slope 56 Second Heater 57 Connector connection part 58 Case partition plate 59 Non-vegetable storage part (PET bottle storage part)
Reference Signs List 60 Storage shelf 61 Partial room 62 Operation unit 63 Freezer room case 64 Ice making device 65 Refrigerator room temperature detecting unit 66 Vegetable room temperature detecting unit 67 Freezing room temperature detecting unit 68 Control unit

Claims (3)

And vegetables chamber,
And a refrigerated chamber,
A cooling chamber having a cooler for generating cool air;
A return passage provided behind the vegetable compartment, for returning cold air of the refrigerator compartment to the cooling compartment,
A cold air passage provided on the top surface of the vegetable compartment, wherein the air outlet for communicating cool air to the inside of the vegetable compartment with the back of the vegetable compartment communicating with the return passage is provided in the vegetable compartment; A cold air passage provided on the front side of the
A return port that is provided on the back of the vegetable compartment and returns the cool air of the vegetable compartment to the return passage.
A refrigerator provided in the cool air passage, comprising: a vegetable compartment fan that sucks cool air from the return passage and sends the sucked cool air to the outlet . The refrigerator according to claim 1, wherein the return port is provided at a lower portion of a back surface of the vegetable compartment. The refrigerator according to claim 1, wherein the vegetable compartment fan is disposed in the cool air passage in an inclined state.

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