WO2015097999A1

WO2015097999A1 - Refrigerator

Info

Publication number: WO2015097999A1
Application number: PCT/JP2014/006066
Authority: WO
Inventors: 淳宏大島; 泰幸岡本; 堀尾　好正; 章彦真鍋; 健一岡部; 愼一堀井; 亜有子宮坂
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2013-12-25
Filing date: 2014-12-04
Publication date: 2015-07-02

Abstract

A refrigerator is provided with a refrigerating compartment, a vegetable compartment, and a freezing compartment. There are also provided: a cooling compartment that is disposed on the back of the freezing compartment and the vegetable compartment and provided with a cooler that produces cold air; and a cooling fan that is disposed in the cooling compartment to supply the cold air produced by the cooler to the refrigerating compartment, the vegetable compartment, and the freezing compartment and circulate the cold air therein. Furthermore, a vegetable compartment fan disposed in the vegetable compartment is provided.

Description

refrigerator

The present invention relates to a refrigerator, particularly a vegetable cold storage configuration in a vegetable room.

Generally, a home refrigerator includes 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. And the layout of a refrigerator compartment, a vegetable compartment, and a freezer compartment is divided roughly into two according to a user's actual condition of use. The first is a layout in which freezing rooms are arranged in the upper and lower central portions of the refrigerator body, and is the layout that is most easily used by the user. The second is a layout in which a vegetable room is placed in the center of the top and bottom of the refrigerator body.

Refrigerators with a freezer in the center of the top and bottom of the refrigerator body are the mainstream today. In particular, it is a refrigerator that is easy to use for users who frequently use frozen foods as lifestyle changes. As this type of refrigerator, for example, a refrigerator described in Patent Document 1 has been proposed.

FIG. 78 shows the refrigerator described in Patent Document 1. The refrigerator main body 500 includes a refrigerator compartment 501 at the top and a vegetable compartment 502 at the bottom. And the freezer compartment 503 is arrange | positioned in the upper-lower center part of the refrigerator main body 500 between the refrigerator compartment 501 and the vegetable compartment 502. FIG. And the cooling room 504 is provided in the back side of the refrigerator across the vegetable compartment 502 and the freezer compartment 503. In the cooling chamber 504, a cooler 505 and a cooling fan 506 are disposed. The cool air generated by the cooler 505 is supplied and circulated by the cooling fan 506 to the refrigerator compartment 501, the vegetable compartment 502, and the freezer compartment 503. And the foodstuff stored in each room mentioned above is cooled and preserved.

A refrigerator of a type in which a vegetable room is arranged at the upper and lower central portions of the refrigerator body is abbreviated as “middle vegetable refrigerator” and has been proposed as a refrigerator that is convenient for users who mainly use vegetables in and out (for example, patent Reference 2).

FIG. 79 shows a refrigerator described in Patent Document 2. The refrigerator main body 600 includes a refrigerator compartment 601 at the top and a freezer compartment 602 at the bottom. A vegetable room 603 is disposed at the upper and lower central portions of the refrigerator body 600 between the refrigerator compartment 601 and the freezer compartment 602. And the cooling room 604 is provided in the back side of the refrigerator main body 200 across the freezer compartment 602 and the vegetable compartment 603. In the cooling chamber 604, a cooler 605 and a cooling fan 606 are disposed. The cold air generated by the cooler 605 is supplied and circulated by the cooling fan 606 to the refrigerator compartment 601, the vegetable compartment 603, and the freezer compartment 602. And the food stored in each room mentioned above is cooled and preserved.

In any type of refrigerator described above, the cold air generated in the cooling room circulates in the vegetable room via the refrigerator room. The vegetables stored in the vegetable compartment are cooled and stored by the cold air circulating in the vegetable compartment.

However, the refrigerators described in Patent Document 1 and Patent Document 2 may cause condensation in the

vegetable compartments

503 and 603 during the cooling and preservation of vegetables, and deteriorate the vegetables stored by the condensation. have.

That is, the

vegetable compartments

503 and 603 receive cold radiation from the

cooling compartments

504 and 604 located on the back thereof, and the temperature near the back of the

vegetable compartments

503 and 603 tends to be lowered. As a result, condensation occurs. In particular, the

vegetable rooms

503 and 603 are supplied with cool air having a relatively high temperature after cooling the

refrigerator compartments

501 and 601 as described above. On the other hand, the

vegetable rooms

503 and 603 continue to receive strong cold radiation from the

cooling rooms

504 and 604. Thereby, the temperature of the vegetable room back surface part which opposes the

cooling rooms

504 and 604 falls, and a big temperature difference arises between the cold air temperature in a vegetable room. As a result, condensation occurs near the back of the vegetable storage case provided in the

vegetable compartments

503 and 603.

In order to prevent dew condensation during normal use, a heat insulating structure that suppresses cooling radiation from the

cooling chambers

504 and 604 is adopted. However, when many vegetables or large vegetables such as cabbage are temporarily stored in the

vegetable rooms

503 and 603, the temperature in the vicinity of the vegetables rises due to the heat of the vegetables. The temperature difference in the vegetable compartment increases due to the cold radiation from the

cooling chambers

504 and 604, and the cold air in the vegetable compartment begins to condense on the wall surface of the vegetable storage case. Particularly in recent refrigerators, large-sized plastic bottles or packs of drinking water, tea, and juices can be stored in vegetable storage cases. PET bottles are often at room temperature and have a larger heat capacity than vegetables. Therefore, when a plastic bottle or the like is stored in the

vegetable compartments

503 and 603, the temperature in the vicinity of the plastic bottle or the like starts to rise immediately after the storage, and the temperature difference due to the cold radiation from the

cooling chambers

504 and 604 tends to increase. As a result, the problem of vegetable deterioration due to condensation of cold air in the vegetable room is likely to become obvious.

Furthermore, such a problem tends to occur particularly in a refrigerator abbreviated as “middle vegetable refrigerator”. The middle vegetable type refrigerator also receives cold radiation from the freezer compartment 602 in which the bottom of the vegetable compartment 603 is located below. This is because the cold radiation from the freezing room 602 is added to the cold radiation from the cooling room 604, and the lower part of the back of the vegetable room 603 is easily lowered due to the synergistic effect of both. In particular, in a large refrigerator in which the cooling room 604 is located up to the rear part of the vegetable room, the problem of vegetable deterioration due to condensation in the vegetable room becomes an unavoidable problem.

In addition, the above-mentioned problems relating to condensation are likely to occur in summer when the temperature of drinking water such as vegetables and plastic bottles, tea, and juice tends to be relatively high. As a result, the temperature of the whole vegetable room tends to be high, the amount of dew condensation water increases, and vegetables and plastic bottles cannot be stored in a sufficiently cooled state, leading to accelerated deterioration of vegetables. And the impression that the refrigerator does not cool may be given to the user, and the reliability of the refrigerator may be reduced.

As a means for solving such a problem, for example, Patent Document 3 proposes a refrigerator in which a cooling chamber is provided only on the back of the freezer compartment and is not positioned on the back of the vegetable compartment. However, in such a configuration, the size of the cooler provided in the cooling chamber is limited, and thus the cooling capacity is limited, and cannot be applied to a large capacity large refrigerator. Therefore, there is a problem that the large refrigerator cannot solve the problem of vegetable deterioration due to condensation caused by cold radiation from the cooling chamber.

JP 2010-60258 A JP-A-9-113109 JP-A-11-118314

The present invention has been made in view of the above-described conventional problems, and provides a refrigerator capable of eliminating the dew condensation in the vegetable room and storing the vegetables and the like in good cooling.

The refrigerator of the present invention includes a vegetable room fan disposed in the vegetable room, in addition to a cooling fan that circulates cold air to the refrigerator room, freezer room, and vegetable room.

This causes the vegetable compartment fan to rotate, causing the cold air in the vegetable compartment to diffuse and circulate, thereby suppressing the occurrence of a large temperature difference in the portion that receives the cold radiation from the cooling chamber. As a result, it is possible to prevent the occurrence of condensation due to the cold radiation from the cooling chamber. Furthermore, even if the cooler for generating cold air is increased in size and the cooling chamber is a large-sized refrigerator having a large capacity spanning the freezing room and the vegetable room, it is possible to suppress the occurrence of dew condensation due to the cold radiation from the cooling room. it can.

FIG. 1 is a front view of the refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a front view when the refrigerator door in the first embodiment is opened. FIG. 3 is a view showing a 3-3 cross section of FIG. 2 showing the refrigerator in the first embodiment. 4 is a diagram showing a cross section 4-4 of FIG. 2 showing the refrigerator according to the first embodiment. FIG. 5 is a perspective view when the refrigerator in the first embodiment is cut in half in the vertical direction when viewed from the front. FIG. 6 is a schematic cross-sectional view for explaining the cold air flow of the refrigerator in the first embodiment. FIG. 7 is a schematic front view illustrating the cold air flow of the refrigerator in the first embodiment. FIG. 8 is a perspective view for explaining a cold air flow in the rear portion of the cooling chamber of the refrigerator in the first embodiment. FIG. 9 is an enlarged cross-sectional view of the main part of FIG. 3 showing the refrigerator according to the first embodiment. FIG. 10 is a schematic cross-sectional view for explaining the cold air flow in FIG. 9. FIG. 11 is a diagram showing an enlarged cross-sectional view of the main part of FIG. 4 showing the refrigerator in the first embodiment. FIG. 12 is a schematic cross-sectional view for explaining the cold air flow in the vegetable compartment in FIG. 11. FIG. 13 is an enlarged front view showing the vegetable compartment and the freezer compartment of the refrigerator in the first embodiment. FIG. 14 is an enlarged front view showing a cooling fan and a cooler installed on the back of the vegetable compartment and freezer compartment of the refrigerator shown in FIG. FIG. 15 is an enlarged perspective view showing the vegetable compartment of the refrigerator and the back wall portion of the freezer compartment in the first embodiment. FIG. 16 is an enlarged perspective view of a rear partition wall block constituting the back wall portion of the vegetable compartment of the refrigerator shown in FIG. FIG. 17 is an exploded perspective view of the rear partition wall block constituting the back wall portion of the vegetable compartment shown in FIG. 16. FIG. 18 is an exploded perspective view of blocks constituting the back wall portion of the freezer compartment shown in FIG. FIG. 19 is a perspective view of a partition plate and a cooling fan that partition the refrigerator storage room and the vegetable compartment in the first embodiment. 20 is an exploded perspective view of the partition plate and the cooling fan in FIG. FIG. 21 is a perspective view showing a vegetable storage case of the refrigerator in the first embodiment. FIG. 22 is a control block diagram of the refrigerator in the first embodiment. FIG. 23 is a perspective view for explaining a cold air flow in the rear portion of the cooling chamber of the refrigerator in the second embodiment of the present invention. FIG. 24 is a schematic cross-sectional view for explaining the cold air flow in the vegetable compartment of the refrigerator in the second embodiment. FIG. 25 is a front view of the refrigerator in the third embodiment of the present invention. FIG. 26 is a front view when the door of the refrigerator in the third embodiment is opened. 27 is a view showing a 27-27 cross section of FIG. 26 showing the refrigerator in the third embodiment. FIG. 28 is a view showing a 28-28 cross section of FIG. 26 showing the refrigerator in the third embodiment. FIG. 29 is a perspective view when the refrigerator according to Embodiment 3 is cut in half in the vertical direction when viewed from the front. FIG. 30 is a schematic cross-sectional view for explaining the cold air flow of the refrigerator in the third embodiment. FIG. 31 is a schematic front view illustrating the cold air flow of the refrigerator in the third embodiment. FIG. 32 is a perspective view for explaining a cold air flow in the rear portion of the cooling chamber of the refrigerator in the third embodiment. FIG. 33 is a diagram showing an enlarged cross-sectional view of the main part of FIG. 27 showing the refrigerator in the third embodiment. FIG. 34 is a schematic cross-sectional view for explaining the cold air flow in FIG. FIG. 35 is a diagram showing an enlarged cross-sectional view of the main part of FIG. 28 showing the refrigerator in the third embodiment. FIG. 36 is a schematic cross-sectional view for explaining the cold air flow when the cooling fan rotates in the vegetable room of the refrigerator in the third embodiment. FIG. 37 is a schematic cross-sectional view for explaining the cold air flow when the cooling fan is stopped in the vegetable room of the refrigerator in the third embodiment. FIG. 38 is an enlarged front view showing the vegetable compartment and the freezer compartment of the refrigerator in the third embodiment. FIG. 39 is an enlarged front view showing a cooling fan and a cooler installed on the back of the vegetable compartment and freezer compartment of the refrigerator shown in FIG. FIG. 40 is an enlarged perspective view showing the vegetable compartment and the back wall portion of the freezer compartment in the third embodiment. FIG. 41 is a perspective view of the rear partition wall block constituting the back wall portion of the vegetable compartment of the refrigerator shown in FIG. FIG. 42 is an exploded perspective view of a rear partition wall block constituting the back wall portion of the vegetable compartment shown in FIG. FIG. 43 is an exploded perspective view of blocks constituting the back wall portion of the freezer compartment shown in FIG. 44 is a perspective view of a partition plate and a cooling fan for partitioning the refrigerator storage room and the vegetable compartment in Embodiment 3. FIG. 45 is an exploded perspective view of the partition plate and the cooling fan in FIG. FIG. 46 is a perspective view showing a vegetable storage case of the refrigerator in the third embodiment. FIG. 47 is a control block diagram of the refrigerator in the third embodiment. FIG. 48 is a schematic cross-sectional view for explaining the cold air flow during rotation of the cooling fan in the vegetable compartment of the refrigerator in the fourth embodiment. FIG. 49 is a schematic cross-sectional view for explaining the cold air flow when the cooling fan is stopped in the vegetable room of the refrigerator in the fourth embodiment. FIG. 50 is a front view of the refrigerator in the fifth embodiment of the present invention. FIG. 51 is a front view when the refrigerator door in the fifth embodiment is opened. FIG. 52 is a view showing a section taken along the line 52-52 in FIG. 51, which shows the refrigerator according to the fifth embodiment. FIG. 53 is a view showing a 53-3 cross section of FIG. 51 showing the refrigerator in the fifth embodiment. FIG. 54 is a perspective view when the refrigerator in the fifth embodiment is cut in half in the vertical direction when viewed from the front. FIG. 55 is a schematic cross-sectional view for explaining the cold air flow of the refrigerator in the fifth embodiment. FIG. 56 is a schematic front view illustrating the cold air flow of the refrigerator in the fifth embodiment. FIG. 57 is a perspective view for explaining a cold air flow in the rear portion of the cooling chamber of the refrigerator in the fifth embodiment. FIG. 58 is an enlarged cross-sectional view of the main part of FIG. 52 showing the refrigerator in the fifth embodiment. FIG. 59 is a schematic cross-sectional view for explaining the cold air flow in FIG. FIG. 60 is an enlarged cross-sectional view of the main part of FIG. 53 showing the refrigerator according to the fifth embodiment. FIG. 61 is a schematic cross-sectional view for explaining the cold air flow in FIG. FIG. 62 is an enlarged front view showing the vegetable compartment and the freezer compartment of the refrigerator in the fifth embodiment. FIG. 63 is an enlarged front view showing a cooling fan and a cooler installed on the back of the vegetable compartment and freezer compartment of the refrigerator shown in FIG. FIG. 64 is an enlarged perspective view showing a back wall portion of the vegetable compartment and the freezer compartment of the refrigerator in the fifth embodiment. FIG. 65 is a perspective view of the rear partition wall block constituting the back wall portion of the vegetable compartment of the refrigerator shown in FIG. 64. 66 is an exploded perspective view of a rear partition wall block constituting the back wall portion of the vegetable compartment shown in FIG. 65. FIG. 67 is an exploded perspective view of a block constituting the back wall portion of the freezer compartment shown in FIG. FIG. 68 is a perspective view of a partition plate and a cooling fan for partitioning a refrigerator storage room and a vegetable room in the fifth embodiment. FIG. 69 is a perspective view showing a vegetable storage case of the refrigerator in the fifth embodiment. FIG. 70 is a control block diagram of the refrigerator in the fifth embodiment. FIG. 71 is a flowchart illustrating the vegetable room cooling operation of the refrigerator in the fifth embodiment. FIG. 72 is a timing chart showing an operation when the vegetable compartment of the refrigerator in the fifth embodiment is temperature-equalized by cold air circulation. FIG. 73 is a timing chart showing a cooling operation when the vegetable compartment of the refrigerator in the fifth embodiment is cooled while being soaked by cold air circulation. FIG. 74 is a timing chart showing temperature equalization and cooling operation by cold air circulation when the temperature of the vegetable compartment of the refrigerator in the fifth embodiment is higher than a predetermined temperature. FIG. 75 is a timing chart showing the cooling state of the vegetable compartment controlled by the refrigerator control in the fifth embodiment. FIG. 76 is a perspective view for explaining a cold air flow in the rear portion of the cooling chamber of the refrigerator in the fifth embodiment. FIG. 77 is a schematic cross-sectional view for explaining the cold air flow in the vegetable compartment of the refrigerator in the fifth embodiment. FIG. 78 is a schematic sectional view of a conventional refrigerator. FIG. 79 is a schematic sectional view of another conventional refrigerator.

The refrigerator according to the first aspect includes a refrigerating room, a vegetable room, a freezing room, and a cooling room that is disposed on the back of the freezing room and the vegetable room and includes a cooler that generates cold air. Moreover, it is arrange | positioned at the cooling chamber, The cooling fan which supplies and circulates the cold air | gas produced | generated with the cooler to a refrigerator compartment, a vegetable compartment, and a freezer compartment, and the vegetable compartment fan arrange | positioned at the vegetable compartment are provided. .

Thus, by rotating the vegetable room fan, it is possible to suppress at least one of diffusion and circulation of the cold air in the vegetable room and to prevent a large temperature difference from being generated in the portion that receives the cold radiation from the cooling room. As a result, it is possible to prevent the occurrence of condensation due to the cold radiation received from the cooling chamber. Further, even in a large-sized refrigerator having a large capacity in which the cooler for generating cold air is enlarged and the cooling room spans the freezing room and the vegetable room, condensation due to cold radiation received from the cooling room can be suppressed. Therefore, it is possible to suppress the deterioration of vegetables due to dew condensation caused by cold radiation received from the cooling room, and cool and store vegetables in good condition in the refrigerators in the whole area ranging from small capacity small refrigerators to large capacity large refrigerators Become.

In the refrigerator of the second aspect, in particular, in the refrigerator of the first aspect, the vegetable room has one vegetable cold air inlet / outlet communicating with the cold air passage through which the cold air generated in the cooling room circulates.

】 Thereby, due to the pressure difference between the vegetable room and the cold air passage, the cold air flowing through the cold air passage flows into the vegetable room through the vegetable cold air inlet / outlet. And the cold air which flowed in cools the vegetable room, and then flows out from the vegetable cold air outlet to the cold air passage. For this reason, the amount of cold air flowing into and out of the vegetable compartment is reduced, and the cold air in the vegetable compartment is maintained in a high humidity state including moisture transpiration from the vegetables. Then, the rotation of the vegetable room fan activates the entry / exit of cold air through the vegetable cold air inlet / outlet, but the cold air does not enter / exit so that the cold air in the vegetable room is replaced. As a result, since the cold air in the vegetable compartment circulates in the vegetable compartment, it is possible to prevent the occurrence of condensation due to the cold radiation received from the cooling compartment. Therefore, it is possible to prevent the vegetables in the vegetable room from deteriorating due to condensation, and at the same time, it is possible to reduce the drying and deterioration of the vegetables in the vegetable room due to the circulation of cold air, and it is possible to cool and store the vegetables in a better state. .

In the refrigerator of the third aspect, in particular, in the refrigerator of the second aspect, the vegetable room fan is disposed in an offset state at the vegetable cold air inlet / outlet.

This allows smooth entry and exit of the cold air through the vegetable room cold air entrance. Therefore, it is possible to prevent a situation in which the cold storage of the vegetables becomes insufficient due to a delay in the entry and exit of the cold air, and the vegetables can be stored in a cold state at all times.

In the refrigerator of the fourth aspect, in particular, in the refrigerator of the first aspect, the vegetable room includes a vegetable cold air inlet and a vegetable cold air return port, and the vegetable cold air inlet and the vegetable cold air return port are generated in the cooling chamber. It communicates with a cool air passage through which cool air circulates.

This allows smooth and more cold air to flow into the vegetable compartment without stagnation of the cold air as compared with the case where cold air enters and exits from one vegetable cold air inlet / outlet. Therefore, cold air can be efficiently taken into the vegetable compartment and the vegetable compartment can be cooled strongly.

In the refrigerator of the fifth aspect, in particular, in the refrigerator of the first aspect, the vegetable compartment is arranged between the refrigeration compartment and the freezing compartment, and the vegetable compartment fan is cooled from the cooling compartment and the freezing compartment. Located near the lower back of the vegetable compartment that receives radiation.

Thereby, even if it is a refrigerator which receives the cold radiation from the cooling room and the cold radiation from the freezer room, and the temperature near the lower part of the back surface is easily lowered, it is possible to prevent the occurrence of condensation due to the cold radiation. . Therefore, it is possible to provide a refrigerator that can improve the usability of a user who frequently takes in and out vegetables and the like and can cool and store the vegetables in a good state.

In the refrigerator of the sixth aspect, in particular, in the refrigerator of the first aspect, the vegetable compartment includes a vegetable storage case, and the vegetable compartment fan causes at least one of diffusion and circulation of cold air to the outer periphery of the vegetable storage case. Is provided.

This makes it possible to prevent the cold air that is at least one of diffusion and circulation by the vegetable room fan from flowing between the vegetables. Therefore, it is possible to prevent the vegetables from drying and deteriorating due to cold air flowing between the vegetables, and to cool and store the vegetables in a fresh and good state.

The refrigerator of the seventh aspect is the refrigerator of the sixth aspect, in particular, the vegetable room fan is disposed below the upper opening edge of the vegetable storage case.

This makes it difficult for cold air, which is diffused and circulated by the vegetable room fan, to enter the vegetable storage case. As a result, it is possible to prevent cold air from circulating in the vegetable storage case and drying and deterioration of the vegetable, and to cool and store the vegetable in a fresh and good state.

The refrigerator according to the eighth aspect is particularly provided in the refrigerator according to the second aspect, further comprising a vegetable room passage part on the rear part of the vegetable room facing the cooling room, and the vegetable room passage part communicates with the upper space of the vegetable room. A vegetable room fan is disposed below the vegetable room passage.

As a result, at least one of the diffusion and circulation in the vegetable room can be efficiently diffused and circulated in the vegetable room through the vegetable room passage by the rotation of the vegetable room fan, and condensation can be generated more effectively in the vegetable room. Can be suppressed.

The refrigerator according to the ninth aspect is the refrigerator according to the sixth aspect, particularly, in the refrigerator according to the sixth aspect, wherein the vegetable storage fan is provided with a non-vegetable storage part in a part of the vegetable storage case, and the vegetable room fan faces the non-vegetable storage part. And at least one of diffusion and circulation.

This allows the cool air received from the vegetable room fan to circulate intensively around the non-vegetable storage section, and can quickly and efficiently cool PET bottles that have a larger heat capacity than vegetables and are difficult to cool. As a result, it is possible to effectively prevent the occurrence of dew condensation by efficiently suppressing an increase in the temperature of the vegetable room due to the storage of a plastic bottle or the like, and at the same time, it is possible to satisfactorily cool and preserve the vegetables.

The refrigerator according to the tenth aspect, in particular, in the refrigerator according to the ninth aspect, the vegetable room is provided with a first vegetable cold air intake port communicating with the suction side of the vegetable room fan at the upper part on the non-vegetable storage part side. Moreover, the 1st vegetable cold air inlet and the vegetable compartment fan are provided in the part by the side of the non-vegetable storage part of a vegetable storage case.

This allows the cold air blown from the vegetable room fan to be diffused and circulated efficiently and intensively in the non-vegetable storage part, and the plastic bottles and the like can be cooled efficiently.

The refrigerator of the eleventh aspect is the refrigerator of the tenth aspect, in particular, in which the inside of the vegetable storage case is partitioned into left and right sides, a non-vegetable storage part is disposed on either side, and the vegetable compartment fan is a non-vegetable storage part A second vegetable cold air inlet that is disposed below the rear part and communicates with the suction side of the vegetable room fan is disposed at the upper part of the vegetable room substantially diagonally to the vegetable fan.

As a result, the cold air blown from the vegetable room fan passes through the bottom part of the non-vegetable storage part of the vegetable storage case and moves forward through the vegetable room diagonally while at least one of diffusion and circulation, It flows to the upper second vegetable cold air return. As a result, cold air can be diffused and / or circulated in a wide range on the outer periphery of the vegetable case while preventing the cold air from entering the vegetable compartment case, and the vegetables and plastic bottles in the vegetable case can be effectively used. Can be cooled to.

The refrigerator of the twelfth aspect is particularly provided in the refrigerator of the eighth aspect, in which the refrigerated cold air passage portion from the cooling room to the refrigerating room is provided at the substantial center part on the rear surface of the refrigerator main body. Further, a refrigerated cold air return passage portion from the refrigeration chamber to the cooling chamber is provided on the side of the refrigerated cold air going-out passage portion on the rear side of the refrigerator main body. Further, the vegetable compartment passage portion is disposed in the vertical direction in front of the return passage portion of the refrigerated cold air.

This allows the vegetable compartment passage to overlap in the front-rear direction with the return passage portion of the refrigerated cold air in which the air passage cross-sectional area can be set small. On the other hand, in the refrigerated cool air going-out passage portion where the air passage cross-sectional area needs to be set large, it does not overlap with the vegetable compartment passage portion in the front-rear direction, so the depth dimension of the vegetable compartment can be expanded. As a result, the amount of vegetables stored can be increased while allowing the vegetables to be stored in a cooled state in a good state, and the refrigerator can be easily used.

In the refrigerator of the thirteenth aspect, in particular, in the refrigerator of the twelfth aspect, the vegetable cold air inlet / outlet is opened to the refrigerated cold air return passage portion, and a part of the cold air circulated from the cooling chamber is bypassed, It is mixed with the returned cold air and supplied to the vegetable room.

This allows the vegetable room to be cooled by the return air from the refrigerating room, and at the same time, fresh low-temperature cold air from the cooling room is directly taken in when the vegetable room fan rotates. As a result, the vegetable room can be effectively cooled, and the intake amount of fresh low-temperature cold air can be increased by increasing the rotation speed of the vegetable room fan. Therefore, the amount of cold air flowing into the vegetable room is small, and even when a large amount of room-temperature PET bottles or the like having a large heat capacity are stored, it can be reliably cooled. Furthermore, the occurrence of dew condensation due to cold radiation from the cooling chamber can be suppressed, and the vegetables can be stored in a cooled state in a good state.

The refrigerator according to the fourteenth aspect is particularly controlled in the refrigerator according to the first aspect based on the temperature detected by the vegetable room temperature detecting means provided in the vegetable room.

Thus, when the temperature of the vegetable room becomes equal to or higher than the predetermined temperature, the vegetable room fan can be driven to cause at least one of diffusion and circulation of the cold air in the vegetable room. Furthermore, if the temperature becomes higher than the predetermined temperature, the rotation speed of the vegetable compartment fan is further increased to increase the amount of cold air diffused and circulated. Thereby, a vegetable room can be cooled reliably and the reliability of a refrigerator can be improved. In addition, in the type of refrigerator that takes in fresh low temperature cold air and mixes it, the amount of the mixture can be increased and the vegetable room can be cooled reliably. Surely.

In the refrigerator of the fifteenth aspect, in particular, in the refrigerator of the first aspect, the back of the vegetable compartment further includes a cold air return passage through which the cold air is circulated by a cooling fan, and is provided between the cold air return passage and the vegetable compartment. A vegetable cold air inlet and a vegetable cold air return port communicating with the cold air return passage are respectively provided on the vegetable fan suction side and the exhaust side of the vegetable room.

¡By rotating the vegetable room fan, cold air is taken into the vegetable room from the cold air return passage, and the cold air is diffused or circulated in the vegetable room. As a result, it is possible to suppress the occurrence of a large temperature difference in the portion that receives the cold radiation from the cooling chamber, and to prevent the occurrence of condensation due to the cold radiation from the cooling chamber. Further, even in a large-sized large-sized refrigerator in which the cooler for generating cold air is increased in size and the cooling room spans the freezing room and the vegetable room, condensation caused by cold radiation from the cooling room can be suppressed. Therefore, it is possible to suppress the deterioration of vegetables due to dew condensation water caused by cold radiation from the cooling room and cool and preserve the vegetables in good condition in the refrigerators in the whole area from the small capacity small refrigerator to the large capacity large refrigerator. Become.

The refrigerator of the sixteenth aspect is the refrigerator of the fifteenth aspect, in particular, the vegetable room fan and the vegetable cold air inlet are arranged at the lower back of the vegetable room, and the vegetable cold air inlet is provided at the upper part of the vegetable room.

As a result, the vegetable room fan can stably and efficiently take cold air into the vegetable room and diffuse or circulate the cold air in the vegetable room, so that the condensation can be more reliably suppressed and the vegetables can be stored in a cool state. can do.

In the refrigerator of the seventeenth aspect, in particular, in the refrigerator of the fifteenth aspect, the vegetable room fan and the vegetable cold air inlet are arranged in the ceiling part of the vegetable room, and the vegetable room fan outlet is opened at the upper part of the vegetable room, A vegetable cold air return opening is provided at the bottom of the vegetable compartment.

Thus, like the refrigerator of the sixteenth aspect, the vegetable room fan can stably and efficiently take cold air into the vegetable room and diffuse or circulate it in the vegetable room. As a result, it is possible to more reliably suppress the occurrence of dew condensation and cool the vegetables in a good state.

In the refrigerator of the eighteenth aspect, in particular, in the refrigerator of the seventeenth aspect, the vegetable room is arranged in the lower part of the refrigeration room, and the vegetable room fan configures the ceiling of the vegetable room by partitioning the vegetable room and the refrigeration room. In the partition plate to be inclined, it is disposed obliquely.

This makes it possible to provide a vegetable room fan in the vegetable room in a form that ensures the volume of the vegetable room while efficiently cooling the vegetable room. That is, since the refrigerator compartment is located in the upper part of the vegetable compartment, the vegetable compartment is appropriately cooled by the cold radiation from the refrigerator compartment. As a result, since the partition plate does not need to incorporate a heat insulating material for heat insulation strengthening, the vegetable room fan can be incorporated using the space. In addition, since the vegetable room fan is inclined, it is not necessary to greatly increase the partition plate thickness even though the vegetable room fan is incorporated. Can be secured greatly.

The refrigerator of the nineteenth aspect is further provided with a control unit that controls the vegetable compartment fan, particularly in the refrigerator of the first aspect, and the control unit has a vegetable compartment when the temperature of the vegetable compartment is within a predetermined temperature range. Timer control operation that drives the fan for a predetermined time, and temperature control operation that drives the vegetable room fan for a set time based on the vegetable room temperature when the temperature of the vegetable room is higher than the predetermined temperature range I do.

This allows the vegetable compartment fan to rotate for a predetermined time when the vegetable compartment is stable within the predetermined temperature range. This forcibly circulates the cold air in the vegetable room to eliminate the temperature difference in the vegetable room caused by the cold radiation from the cooling room and suppress the occurrence of condensation. When the vegetable room is at a temperature higher than the predetermined temperature range, the vegetable room fan is rotated for a time set according to the vegetable room temperature. As a result, the amount of cold air taken into the vegetable room is increased, and the vegetable room is cooled and held at a low temperature by using the increased cold air and the low-temperature cold air near the lower back, which has been lowered by cold radiation from the cooling room, as a cooling source. can do. Moreover, when the temperature in the vegetable room is stable within the predetermined temperature range, the vegetable room fan is controlled to rotate at a predetermined time, so the temperature in the vegetable room is constantly detected and the vegetable room fan is controlled to rotate. It is possible to reduce temperature control variations due to temperature detection delays that tend to occur. Thereby, the temperature of the vegetable compartment can be stabilized and the vegetables can be stored in a cooled state in a good state.

The refrigerator of the twentieth aspect is the refrigerator of the nineteenth aspect, in particular, the controller sets the vegetable room fan driving time during the timer control operation based on the outside air temperature.

This makes it possible to optimize the drive time of the vegetable room fan according to the outside temperature, and the vegetable room fan can be rotated without excess or shortage even if the outside temperature fluctuates. Therefore, reliable and efficient cooling and condensation prevention can be achieved according to the outside air temperature even in the timer control operation.

In the refrigerator of the twenty-first aspect, in particular, in the refrigerator of the nineteenth aspect, the control unit corrects the drive time of the vegetable room fan during the temperature control operation based on the temperature in the vegetable room and is set by the timer control operation. The driving time is longer than that.

This allows the vegetable room fan to rotate for a long time according to the temperature of the vegetable room at the time of transition when the temperature in the vegetable room becomes higher than the predetermined temperature range due to the taking in and out of vegetables and the like. Thereby, the amount of cold air taken into the vegetable compartment is increased by the rotation of the vegetable compartment fan, and the vegetable compartment can be reliably and quickly cooled to the predetermined temperature range.

The refrigerator according to the twenty-second aspect, particularly in the refrigerator according to the nineteenth aspect, causes the control unit to forcibly stop the vegetable room fan when the temperature of the vegetable room is low outside the predetermined temperature range.

Thus, when the vegetable room is lower than the predetermined temperature range and the temperature difference is small and there is little risk of condensation, the vegetable room fan is stopped and wasteful power consumption due to rotation of the vegetable room fan is suppressed.

The refrigerator according to the twenty-third aspect, particularly, in the refrigerator according to the nineteenth aspect, the control unit forcibly causes the vegetable compartment fan to stop when the compressor for generating cold air is stopped.

As a result, it is possible to eliminate the suspicious user's operation sound due to the vegetable room fan rotating during the cooling operation stop when the compressor is stopped, and to prevent the reliability of the refrigerator from being impaired. .

The refrigerator according to the twenty-fourth aspect is the refrigerator according to the nineteenth aspect, in particular, the control unit forcibly stops the vegetable compartment fan when the operation of the compressor for generating cold air is within a predetermined time. If the compressor is stopped for a certain time or longer, the vegetable compartment fan is driven based on the timer control operation.

As a result, when the compressor is stopped, that is, the cooling operation is stopped, the vegetable compartment is lower than the predetermined temperature range, and the temperature difference is small, the vegetable compartment fan is stopped and wasteful power consumption is caused by the rotation of the vegetable compartment fan. Suppress. If the stop time of the vegetable room fan becomes long and a temperature difference occurs in the vegetable room due to the cold radiation from the cooling room, the vegetable room fan can be rotated to eliminate the temperature difference and suppress the occurrence of condensation. As described above, the vegetables can be stored in good cooling while always preventing condensation.

The refrigerator of the twenty-fifth aspect includes a refrigerator compartment, a vegetable compartment, a freezer compartment, and a cooling compartment equipped with a cooler for generating cold air disposed on the back of the freezer compartment and the vegetable compartment. In addition, a cooling fan is provided in the cooling chamber and supplies and circulates the cold air generated by the cooler to the refrigerator compartment, the vegetable compartment, and the freezer compartment. Furthermore, the vegetable room is provided with one vegetable cold air inlet / outlet communicating with a cold air passage through which the cold air generated in the cooling room circulates.

As a result, the cold air flowing through the cold air passage flows into the vegetable compartment through the vegetable cold air inlet / outlet due to the pressure difference between the vegetable compartment and the cold air passage, and after the cooled cold air cools the vegetable compartment, It flows out to the passage. As a result, the amount of cold air entering and exiting the vegetable compartment is reduced, and the cold air in the vegetable compartment is maintained in a high humidity state including moisture transpiration from the vegetables. Therefore, it is possible to greatly reduce the drying and deterioration of the vegetables in the vegetable room due to the circulation of cold air, and the vegetables can be cooled and stored in a considerably better state than before.

In the refrigerator of the 26th aspect, in particular, in the refrigerator of the 25th aspect, the vegetable room is disposed between the refrigerator room and the freezer room.

The vegetable room is cooled by cold radiation from the freezing room in addition to the cold radiation from the cooling room, and is kept at a relatively low temperature. Therefore, even if the cold air flows into and out of the vegetable room by reducing the amount of cold air flowing into the vegetable room by reducing the cooling capacity, the vegetables in the vegetable room can be cooled well. In addition to this, it is possible to maintain the cold air humidity in the vegetable room at a high level, to reduce the drying deterioration of the vegetable, and to improve the usability of the user who mainly uses the vegetables in and out.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, “middle vegetable refrigerator” will be described as an example, but the present invention is not limited to the embodiment.

(Embodiment 1)
FIG. 1 is a front view of the refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a front view when the door of the refrigerator in the first embodiment is opened. 3 is a cross-sectional view taken along the line 3-3 of FIG. 2 showing the refrigerator according to the first embodiment. 4 is a cross-sectional view taken along the line 4-4 of FIG. 2 showing the refrigerator according to the first embodiment. FIG. 5 is a perspective view when the refrigerator in the first embodiment is cut in half in the vertical direction when viewed from the front. FIG. 6 is a schematic cross-sectional view for explaining the cold air flow of the refrigerator in the first embodiment. FIG. 7 is a schematic front view illustrating the cold air flow of the refrigerator in the first embodiment. FIG. 8 is a perspective view for explaining a cold air flow in the rear portion of the cooling chamber of the refrigerator in the first embodiment. FIG. 9 is an enlarged cross-sectional view of the main 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. 11 is an enlarged cross-sectional view of the main part of FIG. 4 showing the refrigerator 90 in the first embodiment. FIG. 12 is a schematic cross-sectional view for explaining the cold air flow in the vegetable compartment in FIG. FIG. 13 is an enlarged front view showing the vegetable compartment and the freezer compartment of the refrigerator in the first embodiment. 14 is an enlarged front view showing a cooling fan and a cooler installed on the back of the vegetable compartment and freezer compartment of the refrigerator shown in FIG. FIG. 15 is an enlarged perspective view showing the vegetable compartment and the back wall portion of the freezer compartment in the first embodiment. FIG. 16 is a perspective view of a rear partition wall block constituting the back wall portion of the vegetable compartment of the refrigerator shown in FIG. FIG. 17 is an exploded perspective view of the rear partition wall block constituting the back wall portion of the vegetable compartment shown in FIG. 18 is an exploded perspective view of a block constituting the back wall portion of the freezer compartment shown in FIG. FIG. 19 is a perspective view of a partition plate and a cooling fan that partition the refrigerator storage room and the vegetable compartment in the first embodiment. 20 is an exploded perspective view of the partition plate and the cooling fan in FIG. FIG. 21 is a perspective view showing the vegetable storage case of the refrigerator in the first embodiment. FIG. 22 is a control block diagram of the refrigerator in the first embodiment.

First, the overall configuration of the refrigerator 90 will be described.

<Fridge body configuration>
A refrigerator 90 according to the present embodiment includes a refrigerator main body 1 whose front can be opened and closed. As shown in FIG. 3 and the like, the refrigerator main body 1 has an outer box 2 mainly using a steel plate, an inner box 3 formed of a hard resin such as ABS, and a foam filling between the outer box 2 and the inner box 3. It is comprised from the foaming heat insulating materials 4, such as the made rigid foaming urethane. The refrigerator body 1 is divided into a plurality of storage rooms by

partition plates

5 and 6. The refrigerator body 1 includes a refrigerator compartment 7 at the top, a vegetable compartment 8 at the bottom of the refrigerator compartment 7, and a freezer compartment 9 at the bottom. 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.

As shown in FIG. 5, a machine room 14 is provided in the upper rear region of the refrigerator main 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.

A cooling chamber 16 for generating cold air is provided on the back surface of the refrigerator body 1. The cooling chamber 16 is formed from the back surface of the freezing chamber 9 to the lower back surface of the vegetable chamber 8. Between the cooling chamber 16 and the vegetable compartment 8, a rear partition wall body 17 is provided that has heat insulation properties using polystyrene foam or the like, and thereby a heat insulation partition is formed.

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. 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. It may be cooled down.

As shown in FIGS. 6 and 19, the cooling fan 19 is assembled to the partition plate 6 that partitions the vegetable compartment 8 and the cooling compartment 16. The cooling fan 19 is attached inside the refrigerator main body 1 by setting the partition plate 6 in the inner box 3 of the refrigerator main body 1. In this state, the cooling fan 19 is located in a portion facing the back of the vegetable compartment 8 as shown in FIGS. The cooling fan 19 blows cool air toward the rear partition wall body 17 that partitions the vegetable compartment 8 and brings strong cold radiation to the lower back of the vegetable compartment.

The exploded perspective view of FIG. 20 shows the structure of the partition plate 6 and the cooling fan 19. That is, the partition plate 6 is filled with the foam heat insulating material 4 (not shown in FIG. 20) between the upper surface member 6a and the lower surface member 6b, and the opening 20 is formed on the back surface side. A cooling fan 19 is assembled in the opening 20. A cooler 18 is located below the opening 20. The opening 20 is formed larger than the upper surface projected area of the cooler 18. A projecting piece 21 that protrudes downward is formed on the lower surface of the opening rear side edge portion of the lower surface member 6b. On the upper surface of the opening rear side edge portion of the lower surface member 6b, an upward protruding piece 22 is formed that protrudes upward from the opening edge of the upper surface member 6a. A first heater 23 for preventing condensation, such as a sheathed heater, is embedded in the partition plate 6 in front of the cooling fan 19 and on the bottom of the vegetable compartment.

The heat insulating barrier 24 covers the front portion of the opening edge of the opening 20 and is made of foamed polystyrene or the like. A passage opening 26 is formed in one side piece of the heat insulating barrier 24. The passage opening 26 corresponds to the cold air return passage opening 25 provided in the partition plate 6. A tank installation portion 27 is formed on a portion of the partition plate 6 opposite to the cold air return passage opening 25. The tank installation unit 27 is provided with a tank for supplying water to an ice making device provided in the freezer compartment 9.

As shown in FIG. 9 and the like, in the lower space of the cooler 18, a defrost heater 28 for defrosting frost and ice adhering to the cooler 18 or the periphery of the cooler 18 is disposed. A drain pan 29 for receiving defrost water generated at the time of defrosting is disposed below the defrost heater 28. 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).

Next, the cold air circulation configuration will be described.

<Cooling air circulation path configuration>
As shown in FIGS. 9, 10, etc., in the cooling chamber 16, the cooling fan 19 has an opening downstream of the cooling chamber cool air conveyance path 30 formed between the rear partition wall body 17 and the refrigerator body 1. ing. Cold air is blown into each chamber via the cooling chamber cold air conveyance path 30.

As shown in FIGS. 7, 8, and 10, the upper portion of the cooling chamber cold air conveyance path 30 communicates with the refrigerated cold air going-out passage 32 via the refrigeration chamber damper 31. The refrigerating / refrigerating air passage 32 is formed at a substantially central portion on the back surface of the refrigerating chamber 7. As shown in FIGS. 7 and 8, a refrigerated cold air return passage 33 from the refrigeration chamber 7 is provided adjacent to the side of the refrigerated cold air passage 32. The lower part of the refrigerated cold air return passage 33 communicates with the vegetable compartment 8 and the cooling compartment 16.

As shown in FIG. 7, a refrigerating / cooling air inlet 35 of the refrigerating / refrigerating air passage 32 is provided at an appropriate position above the rear wall of the refrigerating chamber 7. A refrigerated cold air return port 36 that opens to the refrigerated cold air return passage 33 is provided at an appropriate position below the rear wall. The cold air blown from the cooling chamber 16 is supplied to the refrigerating / refrigerating air passage 32 via the refrigerating chamber damper 31, and further supplied to the refrigerating chamber 7 from the refrigerating / refrigerating air inlet 35. On the other hand, the cold air that has cooled 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 then circulates to the cooling room 16. Moreover, the partial chamber is provided in the lower part of the refrigerator compartment 7 so that it may mention later. As shown in FIG. 8, cold air is supplied to the partial chamber through a partial chamber damper 31a, a partial chamber cold air passage 32a, and a partial chamber cold air inlet 35a.

In this embodiment, as is apparent from FIG. 8, an outward passage 37 and a return passage 38 are formed on the back surface of the rear partition wall body 17 and the partition plate 6. The forward passage 37 connects the cooling chamber cold air conveyance path 30 and the refrigerated cold air forward passage 32. Further, the forward passage 37 connects the cooling chamber cold air conveyance path 30 and the partial chamber cold air forward passage 32a. The return passage 38 communicates the refrigerated cold air return passage 33 with the vegetable compartment 8 and the cooling compartment 16. The refrigerator compartment damper 31 is provided in the outgoing passage 37.

A communication passage 39 is provided between the refrigerated cold air return passage 32 and the refrigerated cold air return passage 33, and 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.

As shown in FIG. 8, a cold air return duct 40 is provided on the back surface of the freezer compartment 9 so as to extend downward on the sides of the cooling fan 19 and the cooler 18. The upper part of the cold air return duct 40 communicates with the vegetable compartment 8 via the return passage 38. The lower part of the cold air return duct 40 is opened near the lower part of the cooling chamber 16, and the cold air that has cooled the vegetable room 8 passes from the lower opening to the cooling chamber 16 via the return passage 38 and the cold air return duct 40. Circulate.

On the other hand, in the freezer compartment 9, as shown in FIG. 10, the freezing cold air inlet 42 is formed in the upper part of the back wall body 41 (refer FIG. 18). The freezing cold air inlet 42 communicates with the lower portion of the cooling chamber cold air conveyance path 30 on the back of the rear partition wall body 17. In addition, a refrigerated cold air return port 43 that opens to the lower part of the cooling chamber 16 is formed in the lower part of the back wall body 41. The cold air circulated from the cooling chamber 16 is supplied to the freezing chamber from the lower portion of the cooling chamber cold air conveyance path 30 via the freezing cold air inlet 42. The cold air after cooling in the freezer compartment circulates to the cooling compartment 16 via the freezer cold air return port 43.

<Vegetable room configuration>
As shown in FIGS. 7, 8, and 12, the vegetable room 8 is provided on either the left or right side of the back wall. In this Embodiment, the vegetable compartment 8 is provided in the lower part of the right side part seeing from the front. The vegetable compartment 8 is provided with one vegetable cold air inlet / outlet 44 that opens to the return passage 38 portion from the refrigerated cold air return passage 33. As shown in FIG. 8, the vegetable cold air inlet / outlet 44 is provided so as to be positioned above the lower end of the bell mouth opening of the cooling fan 19. Thereby, when the low-temperature cold in the cooling chamber 16 flows backward through the cold return duct 40 and the return passage 38 when the cooling fan 19 is stopped, the low-temperature cold is prevented from flowing into the vegetable compartment 8 from the vegetable cold air inlet / outlet 44. .

In the vegetable compartment 8, as shown in FIG. 12, the vegetable compartment passage portion 50 is provided at the front position of the cold return passage 38 using the rear partition wall 17 provided on the back of the vegetable compartment 8. It is formed in the vertical direction. The upper part of the vegetable compartment passage portion 50 communicates with the first vegetable cold air inlet 47 of the first passage 47a provided in the front-rear direction at the upper part of the vegetable compartment 8. Further, the lower part of the vegetable compartment passage portion 50 communicates with the vegetable cold air inlet / outlet 44.

In the vegetable room 8, a vegetable room fan 53 made of a propeller fan or the like is arranged at a portion facing the vegetable cold air inlet / outlet 44. The vegetable compartment fan 53 is arranged so as to be offset so that the horizontal central axis is positioned below the horizontal central axis of the vegetable cold air inlet / outlet 44. The vegetable room fan 53 is positioned in front of the vegetable cold air inlet / outlet 44, and is installed so that the vegetable room fan 53 and the vegetable cold air inlet / outlet 44 overlap each other when viewed from the front. In addition, when the amount of cooling of the vegetable room 8 is required to be large, it is effective to increase the opening area of the vegetable cold air inlet / outlet 44, and when the amount of cooling is small, it is effective to reduce the opening area of the vegetable cold air inlet / outlet 44. is there. In either case, the lower end of the vegetable cold air inlet / outlet 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-rear direction.

Further, as shown in FIGS. 13, 15, 16, and the like, the upper part of the vegetable compartment 8 is an upper part of the rear partition wall body 17, which is the rear face of the vegetable compartment 8. A second vegetable cold air inlet 51 is provided at the corner position. In the present embodiment, a second vegetable cold air inlet 51 is provided at the upper left side of the vegetable compartment 8. The 2nd channel | path 51a provided with the 2nd vegetable cold air inlet 51 is connected to the upper part of the vegetable compartment channel | path part 50, as shown in FIG.

FIG. 17 is an exploded perspective view of the rear partition wall body 17 forming the vegetable compartment passage portion 50, the second vegetable cold air inlet 51, and the second vegetable cold air inlet 51. The vegetable compartment passage portion 50 is formed between a front partition plate 17a and a rear partition plate 17b that are polymerized via a polystyrene foam (not shown). The upper end portion 50a of the vegetable compartment passage portion 50 is open to the first passage 47a and the second passage 51a. As described above, the vegetable compartment fan 53 is incorporated in the lower portion of the vegetable compartment passage portion 50, and the blowout port 54 opens into the vegetable compartment 8. The vegetable room fan 53 blows the cold air flowing from the vegetable cold air inlet / outlet 44 and the vegetable room cold air sucked from the first vegetable cold air inlet 47 and the second vegetable cold air inlet 51 into the vegetable room 8. To do.

The air outlet 54 of the vegetable room fan 53 opens toward the rear surface of the lower vegetable storage case 49a described later. As shown in FIG. 12, the rear lower part of the lower vegetable storage case 49a facing the vegetable compartment fan 53 is an inclined surface 55 positioned forward as it goes downward. With this configuration, the cool air blown from the vegetable compartment fan 53 can be concentrated to the lower surface space of the lower vegetable storage case 49a.

Further, as shown in FIG. 10, a second heater 56 made of a sheathed heater or the like for preventing condensation is embedded in the surface of the back partition wall 17 facing the cooling chamber 16. The second heater 56 is disposed at a position facing the upper part of the cooling chamber 16 and in a low temperature cooling chamber temperature zone below the refrigerator compartment damper 31. The refrigerator compartment damper 31 opens and closes the cold air from the refrigerator compartment 16 to the refrigerator compartment 7.

In the cooling chamber cool air conveyance path 30 which is a low temperature cooling chamber temperature zone, electricity such as the cooling fan 19, the first heater 23 in the partition plate 6, the second heater 56 in the rear partition wall body 17, and the like. A connector connecting portion 57 (box) of the member is installed (see FIG. 14). Electrical connection is made in the cooling chamber cool air conveyance path 30 that is in the cooling chamber temperature zone.

The vegetable compartment 8 is provided with a vegetable storage case 48 as shown in FIG. The vegetable storage case 48 includes a lower vegetable storage case 49a placed on the frame of the door 11 and an upper vegetable storage case 49b placed on the lower vegetable storage case 49a. A space is provided between the vegetable storage case 48 and the partition plate 6 disposed thereunder, and a space is also provided between the vegetable storage case 48 and the inner peripheral wall surface of the vegetable compartment 8. Yes. These spaces constitute an air passage through which cold air flowing from the vegetable cold air inlet / outlet 44 flows.

Further, the upper opening edge of the upper vegetable storage case 49b of the vegetable storage case 48 is located in a portion close to the partition plate 5 in the upper portion of the vegetable compartment 8, and is located in an upper portion from the vegetable cold air inlet / outlet 44. This prevents the cold air flowing from the vegetable cold air inlet / outlet 44 from directly entering the upper 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. 21, the lower vegetable storage case 49a may be divided into left and right by a case partition plate 58. The lower vegetable storage case 49a has a side deeper than the vegetable cold air inlet / outlet 44 (in this embodiment, the right side when viewed from the front) and is deepened to a non-vegetable storage portion 59 such as a PET bottle or a pack (hereinafter referred to as PET bottle). And so on.) In addition, the inside of the vegetable compartment 8 may be divided back and forth, and the front side part may be used as a storage part 59 such as a plastic bottle.

<Refrigerator configuration>
As shown in FIG. 4 and the like, the refrigerating chamber 7 includes a plurality of storage shelves 60 and a partial chamber 61 that can be cooled to a semi-refrigeration temperature zone. And the cold storage cold air inlet 35 and the cold storage cold air return port 36 (all refer FIG. 7) are provided in each suitable place of the refrigerator compartment 7. FIG. And the operation part 62 which performs the setting of the chamber internal temperature setting of each room | chamber, ice making, quick cooling, etc. is arrange | positioned in the side wall of the refrigerator compartment 7.

<Freezer configuration>
As described above with reference to FIG. 10, the freezing cold air inlet 42 communicating with the lower portion of the cooling room cold air conveyance path 30 formed on the back surface of the rear partition wall body 17 is formed at the upper rear wall of the freezing chamber 9. Has been. Further, a freezing cold air return port 43 communicating with the cooling chamber 16 is formed in the lower part of the back wall of the freezing chamber 9. Although not shown, a freezer damper is 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 placed on the frame of the door 12, as shown in FIG. Furthermore, an ice making device 64 is incorporated in the upper part of the freezer compartment 63.

Next, the control configuration of the refrigerator 90 will be described.

<Control configuration>
FIG. 22 shows a control block diagram in refrigerator 90 of the present embodiment. The refrigerator compartment temperature detector 65, the vegetable compartment temperature detector 66, and the freezer compartment temperature detector 67 are all formed of thermistors and are installed at appropriate locations in the refrigerator compartment 7, the vegetable compartment 8, and the freezer compartment 9, respectively. Has been. The control unit 68 that performs overall control of the entire refrigerator 90 is configured by a microcomputer or the like. The controller 68 controls opening / closing of the refrigerator compartment damper 31 and the freezer compartment damper 34 according to control software incorporated in advance based on outputs from the refrigerator compartment temperature detector 65 and the freezer compartment temperature detector 67. Furthermore, the control unit 68 drives the compressor 15, the cooling fan 19, and the first heater 23 and the second heater 56 as necessary to control each chamber to a set temperature. The control unit 68 controls the operation of the vegetable compartment fan 53 incorporated in the vegetable compartment passage portion 50 of the vegetable compartment 8 based on outputs from the refrigerator compartment temperature detection portion 65 and the vegetable compartment temperature detection portion 66. Specifically, when one of the detection units detects that the temperature detected by the refrigerator temperature detection unit 65 and the vegetable room temperature detection unit 66 is higher than the set temperature, the vegetable room fan is detected. 53 is driven. Furthermore, even when the temperature detected by the cold room temperature detection unit 65 and the vegetable room temperature detection unit 66 is always low and the cold room damper 31 does not open continuously for a certain period of time or longer, the control unit 68 does not stop the vegetable room fan 53. Drive.

About the refrigerator 90 comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

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

Depending on the set temperature in the refrigerator 90, the refrigeration cycle is operated by a signal from the control unit 68, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged from the compressor 15 is condensed and liquefied to some extent by a condenser (not shown). Further, the refrigerant condenses and liquefies while preventing condensation of the refrigerator 90 via a refrigerant pipe (not shown) disposed on the side surface and the rear surface of the refrigerator 90 and the front opening of the refrigerator 90, and the capillary tube ( (Not shown). Thereafter, the refrigerant is depressurized in the capillary tube while exchanging heat with a suction pipe (not shown) to the compressor 15 and reaches a cooler 18 as a low-temperature and low-pressure liquid refrigerant. The refrigerant supplied into the cooler 18 evaporates and cool air for cooling each storage chamber is generated in the cooling chamber 16.

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

The low temperature cold air generated in the cooling chamber 16 is sent from the cooling chamber cold air conveyance path 30 to the refrigerator compartment 7 and the freezer compartment 9 by the cooling fan 19. The cool air supplied to the refrigerator compartment 7 cools the refrigerator compartment 7, and then supplies it to the vegetable compartment 8, where each room is cooled to a set temperature. Then, the cold air that has cooled 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.

The controller 68 supplies cold air to each chamber by causing the compressor 15 and the cooling fan 19 to operate and stop based on the detected temperatures of the refrigerator compartment temperature detector 65 and the freezer compartment temperature detector 67. Is done. Moreover, the control part 68 controls opening and closing of the refrigerator compartment damper 31 and the freezer compartment damper 34, and maintains each chamber in a setting temperature range.

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

The cold air after cooling in the refrigerator compartment is supplied from the vegetable cold air inlet / outlet 44 provided in the cold return passage 38 as shown in FIG. 12, and the vegetable compartment 8 is cooled. Since the opening provided in the vegetable compartment 8 is only one vegetable cold air inlet / outlet 44, the cold air supplied to the vegetable compartment 8 circulates as follows. During the operation of the cooling fan 19, that is, during the cooling operation, due to the pressure difference between the vegetable room 8 and the return passage 38 generated by the ventilation of the cooling fan 19, the cold air is replaced with a part of the cold air in the vegetable room. Slowly flow into chamber 8. Furthermore, the cold air flows through the space between the vegetable storage case 48 and the inner peripheral wall of the vegetable compartment 8, and indirectly cools the vegetables, plastic bottles, etc. stored in the vegetable storage case 48 from the outer periphery of the case. It flows out from the cold air inlet / outlet 44 to the return passage 38. Then, the cold air circulates from the cold air return duct 40 to the cooling chamber 16.

Therefore, the cold air entering and exiting the vegetable compartment 8 is gradual and the amount thereof is relatively small compared to the case where the cold air inlet / outlet is provided separately. Therefore, the amount of cold air in the vegetable room 8 is slightly changed, and most of the cold air remains in the vegetable room 8. That is, the cold air in the vegetable compartment 8 is maintained in a high humidity state including moisture transpiration from the vegetables. Therefore, compared with the case where the cold air in the vegetable room 8 is circulated and replaced in large quantities, the drying deterioration of the vegetables can be greatly reduced, and the vegetables can be stored in a cooled state in a considerably better state than before. It becomes.

On the other hand, in the refrigerator 90 shown in the present embodiment, as shown in FIG. 12, a vegetable room fan 53 is provided at a lower portion of the vegetable room passage portion 50 of the vegetable room 8 and facing the vegetable cold air inlet / outlet 44. ing. When the vegetable compartment fan 53 rotates during the cooling operation, most of the return cold air flowing through the return passage 38 is sucked into the vegetable compartment passage portion 50 from the vegetable cold air inlet / outlet 44. Cold air 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.

Here, in the present embodiment, the vegetable room fan 53 is arranged in an offset state from the vegetable cold air inlet / outlet 44. For this reason, the entry and exit of the cold air through the vegetable cold air inlet / outlet 44 is smooth even if the number of the openings is only one of the vegetable cold air inlet / outlet 44, and reliable suction and intake are possible. That is, as shown by X and Y in FIG. 12, in the portion near the lower end of the vegetable cold air inlet / outlet 44 close to the central axis of the vegetable compartment fan 53 (lower part in FIG. 12), cold air enters the vegetable compartment 8 as shown by X. Flows in. On the other hand, at the portion near the upper end of the vegetable cold air inlet / outlet 44 far from the central axis of the vegetable room fan 53 (upper part in FIG. 12), as indicated by Y, the cold air is clearly divided so as to flow out of the vegetable room 8. Become. Therefore, even if it is one vegetable cold air entrance / exit 44, it can be prevented that cold air enters and exits and the cold air stagnates, resulting in insufficient cold air intake. That is, the cool air can be reliably sucked and taken in from the return passage 38, and the cool air can be supplied into the vegetable chamber 8 from the outlet 54 of the vegetable chamber fan 53.

And even in this case, since there is only one cold air inlet / outlet, the amount of cold air in the vegetable room is less than in the case where the cold air inlet / outlet is provided separately, and the inside of the vegetable room 8 is kept in a high humidity state, The effect of preventing drying deterioration is maintained.

The cold air taken into the vegetable compartment 8 and supplied toward the vegetable storage case 48 in the vegetable compartment 8 as described above is the space between the vegetable storage case 48 and the bottom of the vegetable compartment 8, and the vegetable storage case. The space between 48 and the inner peripheral wall flows faster than the flow when circulating only by the air blowing pressure of the cooling fan 19. Then, as described above, the cold air circulates back from the vegetable cold air inlet / outlet 44 to the cooling chamber 16 via the return passage 38. At that time, the cold air other than the cold air returning to the cooling chamber 16 is circulated from the first vegetable cold air suction port 47 and the second vegetable cold air suction port 51 provided in the upper part of the vegetable chamber 8 and the first passage 47a. It is sucked into the second passage 51a and sucked into the vegetable compartment fan 53 through the vegetable compartment passage portion 50 communicating with these passages. The cold air sucked into the vegetable compartment fan 53 through the vegetable compartment passage section 50 is supplied again from the air outlet 54 of the vegetable compartment fan 53 toward the vegetable storage case 48 in the vegetable compartment 8 and diffuses in the vegetable compartment 8. And circulate.

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

The vegetable room 8 receives cold radiation from the cooling room 16 located on the back of the vegetable room 8 and the freezing room 9 located below. As a result, as in the conventional case, the vicinity of the lower back of the vegetable compartment 8 is likely to be lowered in temperature. In particular, the cold radiation from the cooling chamber 16 is strong. The back of the vegetable room 8 receives strong cold radiation at a part facing the cooling room temperature zone from the cooling room 16 to the refrigerating room damper 31, and this part is easily lowered in temperature. This is because the cooling chamber cool air conveyance path 30 zone from the cooling chamber 16 to the refrigerating chamber damper 31 as well as the cooling chamber 16 itself is in the same cryogenic temperature zone as the cooling chamber 16.

The low temperature in the vicinity of the lower back of the vegetable room due to this cold radiation is eliminated by diffusing and circulating the cold air in the vegetable room 8 by driving the vegetable room fan 53 in both cases of cooling operation and cooling stop. . That is, when the vegetable room fan 53 is driven, the cold air in the vegetable room 8 diffuses and circulates, and the temperature is dispersed by the diffused and circulated cold air, and the temperature reduction is suppressed. More specifically, the cold air diffused and circulated in the vegetable compartment 8 by the vegetable compartment fan 53 is cooled from the cooling room temperature zone located on the back of the vegetable compartment 8 and the freezer compartment 9 located below the vegetable compartment 8. The temperature in the vicinity of the lower part of the back of the vegetable room, which is easy to lower the temperature, is diffused into the vegetable room 8 due to the cold radiation from. That is, the cold air diffused and circulated in the vegetable compartment 8 by the vegetable compartment fan 53 cools the vegetable compartment 8 by lowering the temperature in the vegetable compartment 8, and at the same time, extremely low temperature or temperature near the lower back of the vegetable compartment. Suppresses the occurrence of differences and prevents condensation.

When all the chambers are below the set temperature and the operations of the compressor 15 and the cooling fan 19 are stopped, the pressure difference generated by the operation of the cooling fan 19 is eliminated, and all the cold air is generated due to the temperature difference. It begins to flow to an equilibrium state based on the density difference. In this case, since the pressure in the freezer compartment 9 is the second highest after the cooling chamber cold air conveyance path 30, the cold air in the cooling chamber cold air conveyance path 30, the cooling chamber 16, and the freezer compartment 9 continues to spread until the pressure difference is eliminated. At this time, since the cold air in the freezer compartment 9 and the cooling chamber 16 is relatively low temperature and high in density, and is accumulated in these chambers, at least the cold air in the cooling chamber cold air conveyance path 30 flows down, The cold air reaches the height of the coldest cooling chamber 16. Here, since the cooling chamber 16 and the freezing chamber 9 are filled with cold cold air, the cold cooling air flowing down is connected to the cooling air return passage 38 connected to the cooling chamber 16 via the freezing chamber 9. It spreads out. The cool air that has spread to the return passage 38 flows back through the return passage 38 and reaches the upper end of the cool air that accumulates in the cooling chamber 16, that is, the lower end height of the cooling fan 19 that opens above the cooling chamber 16.

In the present embodiment, since the lower end of the vegetable cold air inlet / outlet 44 is installed higher than the height of the bell mouth lower end of the cooling fan 19, it is possible to suppress backflow of cold air from flowing into the vegetable room 8 from the vegetable cold air inlet / outlet 44. Thereby, it can suppress that the vegetable compartment 8 is locally cooled by backflow cold air, and can prevent dew condensation in the vegetable compartment 8, freezing, and overcooling, and can prevent deterioration of preserved vegetables.

As described above, the occurrence of dew condensation due to the local low temperature of the vegetable compartment 8 is prevented both in the cooling operation and when the cooling is stopped. Therefore, the cooler 18 for generating cold air is increased in size and the cooling compartment. Even if 16 is a large-capacity large-sized refrigerator that spans the freezer compartment 9 and the vegetable compartment 8, condensation due to cold radiation from the cooling compartment 16 can be suppressed. Therefore, it is possible to suppress the deterioration of vegetables due to dew condensation water caused by cold radiation from the cooling chamber 16 in the entire refrigerator ranging from a small refrigerator with a small capacity to a large refrigerator with a large capacity, and cool and store the vegetables in a good state. It becomes. Moreover, since this refrigerator is a “middle vegetable room type” in which the vegetable room 8 is provided between the refrigerator room 7 and the freezer room 9, it is possible to prevent the occurrence of condensation and cool and store the vegetables in a good state. In addition, it is possible to improve the usability of the user who mainly uses the vegetables in and out.

As described above, the refrigerator 90 according to the present embodiment can suppress the occurrence of condensation due to the temperature difference in the vegetable room, and can cool and hold the vegetable room at a low temperature. can do. Furthermore, it has the effect shown below further about vegetable room cooling.

First, in the present embodiment, the vegetable compartment fan 53 cools air toward the outer periphery of the lower vegetable storage case 49a disposed at the lower stage of the vegetable storage case 48 and the upper vegetable storage case 49b disposed at the upper stage. Let at least one of diffusion and circulation. Therefore, it is possible to suppress the cool air diffused and circulated by the vegetable compartment fan 53 from entering the lower vegetable storage case 49a and the upper vegetable storage case 49b and flowing between the vegetables. As a result, it is possible to prevent the vegetables from drying and deterioration which tends to occur when cold air flows between the vegetables, and to cool and store the vegetables in a fresh and good state.

In particular, in the present embodiment, the first vegetable cold air inlet 47 and the second vegetable cold air inlet 51 are provided in the upper part of the vegetable storage case 48 constituted by the lower vegetable storage case 49a and the upper vegetable storage case 49b. ing. The first vegetable cold air inlet 47 and the second vegetable cold air inlet 51 are cold air inlets that diffuse or circulate in the vegetable compartment. Cold air that diffuses and 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, and the first vegetable cold air inlet 47 and It flows to the second vegetable cold air inlet 51. As a result, it is possible to reliably prevent the vegetables from drying and to cool and store the vegetables in a fresh and good state. 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. If the cover which covers the said upper surface opening edge is provided, the drying deterioration prevention effect of vegetables can be heightened more effectively.

In addition, the vegetable compartment fan 53 is located below the upper opening edge of the vegetable storage case 48. Therefore, the cool air blown from the vegetable compartment fan 53 spreads and circulates in the vegetable storage case 48, particularly in the vicinity of the bottom surface and the lower outer periphery of the lower vegetable storage case 49a. Accordingly, the cold air that is diffused and circulated by the vegetable compartment fan 53 is less likely to enter the vegetable storage case 48. As a result, it is possible to reliably prevent the deterioration of the vegetables caused by the cold air entering and circulating in the vegetable storage case 48, and to cool and store the vegetables in a fresher and better state.

In this embodiment, the vegetable storage case 48 partitions the inside of the lower vegetable storage case 49a to the left and right, and a non-vegetable storage portion 59 such as a plastic bottle or a pack is provided on one side. A vegetable room fan 53 is provided on the back side of the vegetable room on the side of the container 59 such as a plastic bottle so that the cold air in the vegetable room is diffused or circulated toward the container 59 of the plastic bottle. Accordingly, the cool air blown from the vegetable room fan 53 circulates intensively around the PET bottle storage 59, and the PET bottles and packs stored in the PET bottle storage 59 can be efficiently used. Can be cooled. In particular, drinking water such as PET bottles and packs stored in the storage unit 59 such as PET bottles has a larger heat capacity than vegetables and is not easily cooled, and cooling is effective. As a result, it is possible to efficiently suppress an increase in the temperature of the vegetable room due to storage of a plastic bottle or the like, effectively prevent the occurrence of condensation, and at the same time, preserve the vegetables well.

Particularly in this embodiment, together with the vegetable compartment fan 53, the first vegetable cold air suction port 47 is provided in the portion of the vegetable storage case 48 on the side of the storage portion 59 such as a plastic bottle. Thereby, 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.

Also, a second vegetable cold air suction port 51, which is another suction port for circulating the cold air in the vegetable room 8, is provided at the upper part of the vegetable room substantially diagonally with the vegetable room fan 53. Thereby, a part of the cool air blown from the vegetable compartment fan 53 is diffused and circulated while passing through the bottom portion of the storage portion 59 of the plastic bottle etc. of the vegetable storage case 48 forward and obliquely longitudinally in the vegetable compartment 8. At least one of them flows to the second vegetable cold air inlet 51 at the top of the vegetable compartment. Accordingly, at least one of diffusion and circulation of cold air over a wide area on the outer periphery of the vegetable compartment case while preventing cold air from entering the vegetable compartment case including the lower vegetable storage case 49a and the upper vegetable storage case 49b. Can do. Therefore, vegetables, plastic bottles, etc. can be cooled effectively.

On the other hand, in the present embodiment, the refrigerated cold air passage 37 that connects the cooling chamber 16 and the refrigeration chamber 7 is disposed at a substantially central portion on the rear surface of the refrigerator 90 main body. A return passage 38 portion of the refrigerated cold air that communicates the refrigeration chamber 7 and the cooling chamber 16 is disposed on the side of the outward passage 37. Further, a vegetable room passage section 50 is provided vertically in front of the refrigerated cold air return passage 38 portion. The vegetable compartment passage section 50 is vertically provided in front of the return passage 38 portion of the refrigerated cold air in which the air passage cross-sectional area can be set small. On the other hand, the vegetable room passage portion 50 is located on the side of the refrigerated cold air passage portion 37 where the air passage cross-sectional area needs to be set large, and these do not overlap in the front-rear direction. The depth dimension of the chamber 8 can be enlarged. Therefore, in addition to being able to cool and store vegetables in a good state, the amount of vegetables stored can be increased, and a convenient refrigerator can be obtained.

In the refrigerator 90, a communication path 39 is formed between the refrigerated cold air passage 32 and the refrigerated cold air return path 33. When the vegetable compartment fan 53 rotates, the low-temperature and fresh cold air in the refrigerated cold air passage 32 is directly mixed into the refrigerated cold air return passage 33 by the fan suction force, and the vegetables are fed from the vegetable cold air inlet / outlet 44 through the return passage 38. It is supplied into the chamber 8. That is, the vegetable room 8 is not only cooled by the return cold air having a relatively high temperature after the cold room cooling from the cold room 7, but also by the rotation of the vegetable room fan 53, fresh cold air at a low temperature is described above. It cools with the cool air which was mixed with the cool air after cooling in the cold room, and was made low temperature. Therefore, the vegetable compartment 8 can be effectively cooled, and the vegetable compartment 8 can be reliably cooled even when the cooling load condition is bad, for example, when many vegetables, plastic bottles, etc. are temporarily stored. can do. Further, the amount of low-temperature fresh cold air taken in through the communication passage 39 can be increased by increasing the rotation speed of the vegetable compartment fan 53. Therefore, even when a large amount of room temperature PET bottles having a large heat capacity are stored in the summer, it can be reliably cooled. Moreover, since the vegetable compartment 8 can be reliably cooled, the occurrence of condensation due to the cold radiation from the cooling compartment 16 can be efficiently suppressed, and the vegetables can be stored in a cool state in a good state.

The vegetable room fan 53 operates when the cold room damper 31 is opened by the output from the cold room temperature detection unit 65 and the cold room 7 and the vegetable room 8 are cooled, and diffuses the cold air in the vegetable room 8. Let at least one of the circulations. Furthermore, in the refrigerator 90 in the present embodiment, the vegetable compartment fan 53 is also controlled based on the temperature detected by the vegetable compartment temperature detection unit 66 provided in the vegetable compartment 8. Thereby, even when the temperature of the refrigerator compartment 7 is high and the cooling operation is not performed, when the temperature of the vegetable compartment 8 becomes equal to or higher than the set temperature, the vegetable compartment fan 53 starts to rotate and diffuses and circulates cold air into the vegetable compartment 8. Let at least one of them. 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 problem and effectively generate dew condensation. Can be prevented.

Moreover, if the temperature of the vegetable compartment 8 becomes higher than the second set temperature in spite of the rotation of the vegetable compartment fan 53, the rotation speed of the vegetable compartment fan 53 is increased, and the cold air is diffused. Increase the amount of circulation. Thereby, the vegetable room 8 can be reliably cooled by increasing the intake amount of fresh cold air. The second set temperature is set to a temperature slightly higher than the set temperature described above. Therefore, the lack of cooling in the summer can be solved, and good cooling storage of vegetables and the like can be surely realized to increase the reliability of the refrigerator.

(Embodiment 2)
FIG. 23 is a perspective view for explaining a cold air flow in the rear portion of the cooling chamber of the refrigerator in the second embodiment. FIG. 24 is a schematic cross-sectional view for explaining the cold air flow in the vegetable room of the refrigerator in the second embodiment.

The refrigerator 90 according to the second embodiment includes a vegetable cold air inlet 45 and a vegetable cold air return port 46 separately from the vegetable cold air inlet / outlet 44 described in the first embodiment. That is, the vegetable compartment 8 returns to the vegetable cold air inlet 45 in a position above the vegetable cold air inlet 45, for example, near the merging of the first passage 47a, the second passage 51a, and the vegetable compartment passage portion 50. A mouth 46 is provided.

Other configurations are the same as those in the first embodiment, and the same components are denoted by the same reference numerals and description thereof is omitted.

In Embodiment 2, cold air in the cold return passage 38 flows from the vegetable cold air inlet 45, and the cold air in the vegetable room 8 flows out from the vegetable cold air return port 46 to the cold air return passage 38. Therefore, compared with the case where cold air enters and exits from one vegetable cold air inlet / outlet 44, the cold air enters and exits smoothly, and more cold air flows into the vegetable compartment 8. Thereby, cold air can be efficiently taken into the vegetable compartment and the inside of the vegetable compartment 8 can be cooled strongly. Therefore, for example, it is effective when the vegetable room 8 is at the lowermost part of the refrigerator body and the bottom of the vegetable room 8 receives heat radiation from the outside air and is not easily cooled.

Other functions and effects are the same as those of the first embodiment except for the effect of suppressing the drying deterioration of the vegetables by allowing the cold air to enter and exit from one vegetable cold air inlet / outlet 44, and the description thereof is omitted.

In each of the above embodiments, not only the cooling chamber 16 but also the cooling chamber cool air conveyance path 30 zone from the cooling chamber 16 to the refrigerating chamber damper 31 provided on the downstream side of the cooling fan of the cooling chamber 16 includes the cooling chamber 16. The cooling chamber temperature range is the same as the cryogenic temperature zone. Therefore, the back of the vegetable compartment 8 receives strong cold radiation at the portion facing the cooling compartment temperature zone from the cooling compartment 16 to the refrigerator compartment damper 31. In the embodiment described above, the cooling chamber temperature zone including the cooling chamber cool air conveyance path 30 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>
In the first and second embodiments, the vegetable compartment 8 has been described by taking a “middle vegetable type” refrigerator provided between the refrigerator compartment 7 and the freezer compartment 9 as an example, but the invention is not limited thereto. The present invention can also be applied to a refrigerator in which a cooling chamber 16 is installed across the backs of the vegetable compartment 8 and the freezing compartment 9 and the vegetable compartment 8 is disposed at the bottom.

Moreover, although the vegetable room channel | path part 50 showed the example provided in the right side seeing from the front of the vegetable room 8, you may provide in the left side. In this case, the storage part such as the plastic bottle of the vegetable storage case 48 is set on the left side.

Moreover, although the vegetable room passage part 50 showed the example provided in the position which is biased to the right side of the vegetable room, it may be provided over the back left-right whole area of the vegetable room 8. FIG. In this case, the vegetable room channel | path part 50 can also anticipate the function which interrupts | blocks the cold radiation from a back surface cooling chamber, and can prevent dew condensation generation | occurrence | production more effectively.

Further, the vegetable compartment passage section 50 is not necessarily required, and the vegetable compartment fan 53 may be disposed on the suction side of the vegetable cold air inlet / outlet 44 and provided in the vegetable compartment 8 in an exposed state.

Further, at least one of the supply and stop of the cold air to the vegetable room 8 is also performed as the cold room damper 31, but at least one of supply and stop is performed by providing a dedicated damper for the vegetable room. You may make it let. In that case, at least one of supply and stop may be operated to the vegetable room dedicated damper in conjunction with the vegetable room fan 53 by the outputs of the cold room temperature detection unit 65 and the vegetable room temperature detection unit 66. Or you may operate at least one of supply and a stop only with the damper only for vegetable compartments.

Furthermore, although the vegetable room fan 53 showed the example controlled by the output from the vegetable room temperature detection part 66 provided in the vegetable room 8, it is not restricted to this, In interlocking with the output of the refrigerator compartment temperature detection part 65 It may be controlled. Or you may make it repeat rotation of the vegetable compartment fan 53 intermittently for a predetermined time, and what is necessary is just to select suitably according to the characteristic of a refrigerator.

Moreover, although the example using the vegetable storage case 48 which consists of a combination of several cases of the lower stage vegetable storage case 49a and the upper stage vegetable storage case 49b was shown, it is not restricted to this, The vegetable storage case 48 is comprised by one case. May be. The upper opening of the vegetable storage case 48 refers to the opening of the uppermost vegetable storage case in the case of a combination of a plurality of cases as in the first and second embodiments.

Moreover, although the non-vegetable storage part 59 such as a plastic bottle formed in the vegetable storage case 48 has been illustrated as being formed by dividing the inside of the vegetable storage case 48 into left and right, it is not limited thereto. The inside of the vegetable storage case 48 may be partitioned in the front-rear direction, and the front portion may be a non-vegetable storage portion.

Furthermore, although the example which has installed the compressor 15 in the upper back area | region of the refrigerator main body 1 was shown, it is not restricted to this. You may provide the compressor 15 in the lower back of the refrigerator main body 1. FIG.

Moreover, although the vegetable room fan 53 is provided in order to suppress the dew condensation in the vegetable room 8, if only aiming at prevention of the drying deterioration at the time of the cold preservation | save of vegetables which is a subject as large as a dew condensation problem The vegetable room fan 53 is not always necessary. One vegetable cold air inlet / outlet 44 described in the first embodiment may be provided, and the vegetable room fan 53 may not be provided. For example, if the vegetable compartment 8 is a “middle vegetable compartment type” refrigerator between the refrigerator compartment 7 and the freezer compartment 9 and the cooling compartment 16 is located at the back, the vegetable compartment 8 is surrounded by outside air. It is in a low temperature state. For this reason, since the vegetable compartment 8 is maintained in a relatively low temperature state, even if the amount of cold air supplied to the vegetable compartment 8 is reduced with a single cold air inlet / outlet into the vegetable compartment 8, Good cooling is possible.

(Embodiment 3)
FIG. 25 is a front view of the refrigerator according to Embodiment 3 of the present invention. FIG. 26 is a front view when the door of the refrigerator in the third embodiment is opened. 27 is a cross-sectional view taken along the line 27-27 of FIG. 26 showing the refrigerator according to the third embodiment. 28 is a cross-sectional view taken along the line 28-28 in FIG. 26 showing the refrigerator according to the third embodiment. FIG. 29 is a perspective view when the refrigerator in the third embodiment is cut in half in the vertical direction when viewed from the front. FIG. 30 is a schematic cross-sectional view for explaining the cold air flow of the refrigerator in the third embodiment. FIG. 31 is a schematic front view illustrating the cold air flow of the refrigerator in the third embodiment. FIG. 32 is a perspective view for explaining a cold air flow in the rear portion of the cooling chamber of the refrigerator in the third embodiment. 33 is an enlarged cross-sectional view of the main part of FIG. 27 showing the refrigerator in the third embodiment. 34 is a schematic cross-sectional view for explaining the cold air flow in FIG. 35 is an enlarged cross-sectional view of the main part of FIG. 28 showing the refrigerator in the third embodiment. FIG. 36 is a schematic cross-sectional view for explaining the cold air flow when the cooling fan rotates in the vegetable compartment of the refrigerator in the third embodiment. FIG. 37 is a schematic cross-sectional view for explaining the cold air flow when the cooling fan is stopped in the vegetable room of the refrigerator in the third embodiment. FIG. 38 is an enlarged front view showing the vegetable compartment and the freezer compartment of the refrigerator in the third embodiment. FIG. 39 is an enlarged front view showing a cooling fan and a cooler installed on the back of the vegetable compartment and freezer compartment of the refrigerator shown in FIG. FIG. 40 is an enlarged perspective view showing the vegetable compartment and the back wall portion of the freezer compartment in the third embodiment. FIG. 41 is a perspective view of a rear partition wall block constituting the back wall portion of the vegetable compartment of the refrigerator shown in FIG. FIG. 42 is an exploded perspective view of the rear partition wall block constituting the back wall portion of the vegetable compartment shown in FIG. 43 is an exploded perspective view of a block constituting the back wall portion of the freezer compartment shown in FIG. FIG. 44 is a perspective view of a partition plate and a cooling fan for partitioning a refrigerator storage room and a vegetable room in the third embodiment. FIG. 45 is an exploded perspective view of the partition plate and the cooling fan in FIG. FIG. 46 is a perspective view showing a vegetable storage case of the refrigerator in the third embodiment. FIG. 47 is a control block diagram of the refrigerator in the third embodiment.

First, the overall configuration of the refrigerator 190 will be described.

<Fridge body configuration>
Refrigerator 190 according to the present embodiment includes a refrigerator main body 101 whose front can be opened and closed. As shown in FIG. 27 and the like, the refrigerator main body 101 is foam-filled between the outer box 102 mainly using a steel plate, the inner box 103 molded with a hard resin such as ABS, and between the outer box 102 and the inner box 103. It is comprised from the foaming heat insulating materials 104, such as the made rigid foaming urethane. The refrigerator main body 101 is divided into a plurality of storage rooms by

partition plates

105 and 106. The refrigerator main body 101 includes a refrigerator compartment 107 at the top, a vegetable compartment 108 at the bottom of the refrigerator compartment 107, and a freezer compartment 109 at the bottom, which is a “middle vegetable compartment” type refrigerator. The front opening of each storage chamber is closed by a door 110, a door 111, and a door 112 so as to be opened and closed.

As shown in FIG. 29, a machine room 114 is provided in the upper rear region of the refrigerator main body 101. The machine room 114 accommodates high-pressure components of the refrigeration cycle such as the compressor 115 and a dryer (not shown) for removing moisture.

A cooling chamber 116 for generating cold air is provided on the back of the refrigerator main body 101. The cooling chamber 116 is formed from the back surface of the freezing chamber 109 to the lower back surface of the vegetable chamber 108. Between the cooling chamber 116 and the vegetable compartment 108, a back partition wall body 117 is provided which has a heat insulating property by using polystyrene foam or the like, thereby providing a heat insulating partition.

A cooler 118 is disposed in the cooling chamber 116, and a cooling fan 119 is disposed above the cooler 118. The cooling fan 119 forcibly circulates the cold air cooled by the cooler 118 to the refrigerating room 107, the vegetable room 108, and the freezing room 109 to cool each room. For example, the refrigerator compartment 107 is usually cooled to a temperature of 1 ° C. to 5 ° C. at which food is not frozen, and the vegetable compartment 108 is cooled to a temperature of 2 ° C. to 7 ° C. that is equal to or slightly higher than that of the refrigerator compartment 107. In addition, the freezer compartment 109 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. It may be cooled down.

30 and 44, the cooling fan 119 is assembled to the partition plate 106 that partitions the vegetable compartment 108 and the cooling compartment 116. The cooling fan 119 is attached inside the refrigerator main body 101 by setting the partition plate 106 in the inner box 103 of the refrigerator main body 101. In this state, the cooling fan 119 is located at a portion facing the back of the vegetable compartment 108 as shown in FIGS. The cooling fan 119 blows cold air toward the rear partition wall body 117 that partitions the vegetable compartment 108, and brings strong cold radiation to the lower back of the vegetable compartment.

45 is an exploded perspective view showing the configuration of the partition plate 106 and the cooling fan 119. FIG. That is, the partition plate 106 is filled with the foam heat insulating material 104 (not shown in FIG. 45) between the upper surface member 106a and the lower surface member 106b, and an opening 120 is formed on the back side. A cooling fan 119 is assembled to the upper part of the opening 120. A cooler 118 is located below the opening 120. The opening 120 is formed larger than the upper surface projected area of the cooler 118 located below the opening 120. A projecting piece 121 protruding downward is formed on the lower surface of the opening rear side edge portion of the lower surface member 106b. On the upper surface of the opening back side edge portion of the lower surface member 106b, an upward protruding piece 122 is formed that protrudes upward from the opening edge of the upper surface member 106a. The partition plate 106 is embedded with a first heater 123 for preventing condensation, such as a sheathed heater, in a portion that is in front of the cooling fan 119 and that is the bottom of the vegetable compartment.

The heat insulating barrier 124 covers the front portion of the opening edge of the opening 120 and is made of foamed polystyrene or the like. A passage opening 126 is formed in one side piece of the heat insulating barrier 124. The passage opening 126 corresponds to the cold air return passage opening 125 provided in the partition plate 6. A tank installation portion 127 is formed on a portion of the partition plate 106 opposite to the cold air return passage opening 125. A tank for water supply to an ice making device provided in the freezer compartment 109 is installed in the tank installation unit 127.

In the lower space of the cooler 118, as shown in FIG. 33 and the like, a cooler 118 or a defrost heater 128 for defrosting frost and ice adhering to the periphery of the cooler 118 is disposed. A drain pan 129 for receiving defrost water generated at the time of defrosting is disposed below the defrost heater 128. 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).

Next, the cold air circulation configuration will be described.

<Cooling air circulation path configuration>
As shown in FIGS. 33, 34, etc., in the cooling chamber 116 that generates cool air, the cooling fan 119 is connected to the cooling chamber cool air conveyance path 130 formed between the rear partition wall body 117 and the refrigerator main body 101. The downstream is open. The cold air is blown into each chamber through the cooling chamber cold air conveyance path 130.

As shown in FIGS. 31, 32, and 34, the upper portion of the cooling chamber cool air conveyance path 130 communicates with the refrigerated cold air going-out passage 132 via the refrigeration chamber damper 131. The refrigerating / refrigerating air passage 132 is formed at a substantially central portion on the back surface of the refrigerating chamber 107. As shown in FIGS. 31 and 32, a refrigerated cold air return passage 133 from the refrigeration chamber 107 is provided adjacent to the side of the refrigerated cold air passage 132. The lower part of the refrigerated cold air return passage 133 communicates with the vegetable compartment 108 and the cooling compartment 116.

As shown in FIG. 31, a refrigerating / cooling air inlet 135 of the refrigerating / refrigerating air passage 132 is provided at an appropriate position above the rear wall of the refrigerating chamber 107. A refrigerated cold air return port 136 that opens to the refrigerated cold air return passage 133 is provided at an appropriate position below the rear wall. The cold air supplied from the cooling chamber 116 is supplied to the refrigerating / refrigerating air passage 132 via the refrigerating chamber damper 131 and further supplied from the refrigerating / refrigerating air inlet 135 to the refrigerating chamber 107. On the other hand, the cold air that has cooled the refrigerating room is supplied to the vegetable room 108 from the refrigerating cold air return port 136 via the refrigerating cold air return passage 133 and then circulates to the cooling room 116. In addition, a partial chamber is provided below the refrigerator compartment 107 as will be described later. As shown in FIG. 32, cold air is supplied to the partial chamber via a partial chamber damper 131a, a partial chamber cold air passage 132a, and a partial chamber cold air inlet 135a.

In the present embodiment, as is apparent from FIG. 32, an outward passage 137 and a return passage 138 are formed on the back surface of the rear partition wall body 117 and the partition plate 106. The forward passage 137 communicates the cooling chamber cold air conveyance path 130 and the refrigerated cold air forward passage 132. Further, the forward passage 137 communicates the cooling chamber cold air conveyance path 130 and the partial chamber cold air passage 132a. The return passage 138 communicates the refrigerated cold air return passage 133 with the vegetable compartment 108 and the cooling compartment 116. The refrigerator compartment damper 131 is provided in the outgoing passage 137.

A communication passage 139 is provided between the refrigerated cold air return passage 132 and the refrigerated cold air return passage 133, and a part of the low-temperature cold air flowing through the refrigerated cold air return passage 132 is mixed directly into the refrigerated cold air return passage 133.

32, a cool air return duct 140 is provided on the back surface of the freezer compartment 109 so as to extend downward from the cooling fan 119 and the cooler 118. As shown in FIG. The upper part of the cold air return duct 140 communicates with the vegetable compartment 8 via the return passage 38. The lower part of the cool air return duct 140 opens near the lower part of the cooling chamber 116, and the cool air that has cooled the vegetable compartment 108 circulates from the lower opening of the cooling chamber 116 to the cooling chamber 116 via the cool air return duct 140. To do.

On the other hand, in the freezer compartment 109, as shown in FIG. 34, the freezing cold air inlet 142 is formed in the upper part of the back wall body 141 (refer FIG. 43). The refrigerated cold air inlet 142 communicates with the lower portion of the cooling chamber cold air conveyance path 130 on the back surface of the rear partition wall body 117. In addition, a refrigerated cold air return port 143 that opens to the lower part of the cooling chamber 116 is formed in the lower part of the back wall body 141. The cold air circulated from the cooling chamber 116 is supplied to the freezing chamber from the lower portion of the cooling chamber cold air conveyance path 130 via the freezing cold air inlet 142. The cold air after cooling in the freezer compartment is circulated to the cooling compartment 116 via the freezer cold air return port 143.

<Vegetable room configuration>
As shown in FIGS. 31, 32, and 34, the vegetable compartment 108 is provided on either the left or right side of the back wall. In the present embodiment, the vegetable compartment 108 is provided in the lower portion of the right side portion when viewed from the front. The vegetable compartment 108 is provided with a vegetable cold air inlet 144 that opens to the return passage 138 from the refrigerated cold air return passage 133. A vegetable cold air return port 146 that opens to the return passage 138 and connects to the cooling chamber 116 is provided substantially above the vegetable cold air inlet 144. As shown in FIG. 32, the vegetable cold air inlet 144 is provided so as to be positioned above the lower end of the bell mouth opening of the cooling fan 119. Thus, when the low-temperature cold air in the cooling chamber 116 flows back to the return passage 138 when the cooling fan 119 is stopped, the cold air is prevented from flowing into the vegetable chamber 108 from the vegetable cold air inlet 144.

Further, in the vegetable compartment 108, as shown in FIG. 36 in particular, a vegetable compartment fan 153 made of a propeller fan or the like is disposed in front of the vegetable cold air inlet 144 provided at the lower back of the vegetable compartment 108. A vegetable cold air inlet 144 and a vegetable cold air return port 146 communicating with the cold air return passage 138 are provided between the cold air return passage 138 and the vegetable compartment 108 on the suction side and the exhaust side of the vegetable compartment fan 153 of the vegetable compartment 108. Each has.

The vegetable room fan 153 is located in front of the vegetable cold air inlet 144, and is installed so that the vegetable room fan 153 and the vegetable cold air inlet 144 overlap when viewed from the front. When the amount of cooling of the vegetable compartment 108 is required to be large, it is effective to increase the opening area of the vegetable cold air inlet 144, and when the amount of cooling is small, it is effective to reduce the opening area of the vegetable cold air inlet 144. It is. In any case, the lower end of the vegetable cold air inlet 144 is provided at a position lower than the upper end of the vegetable compartment fan 153, and is installed so as to overlap in the front-rear direction.

In the upper part of the vegetable compartment 108, a first passage 147 a having a first vegetable cold air inlet 147 that opens to the vegetable cold return port 146 at the rear and opens into the vegetable compartment 108 at the front is formed. Yes.

As shown in FIGS. 38, 41 and the like, the upper part of the vegetable compartment 108 is an upper part of the rear partition wall 117 which is the rear face of the vegetable compartment 108 and is substantially diagonally positioned at the vegetable cold air inlet 144. A second vegetable cold air inlet 151 is provided in the part. In the present embodiment, a second vegetable cold air inlet 151 is provided on the upper left side of the vegetable compartment 108. The 2nd channel | path 151a provided with the 2nd vegetable cold air suction inlet 151 is connected to the vegetable cold air return port 146, as shown in FIG.

FIG. 42 is an exploded perspective view of the rear partition wall body 117 provided with the second vegetable cold air inlet 151. The rear partition wall 117 is configured by superposing a front partition plate 117a and a rear partition plate 117b via a polystyrene foam (not shown). As described above, the vegetable compartment fan 153 is incorporated in the lower part of the rear partition wall body 117. The air outlet 154 of the vegetable room fan 153 opens into the vegetable room 108. The vegetable room fan 153 blows into the vegetable room 108 the cold air flowing from the vegetable cold air inlet 144 and the vegetable room cold air sucked from the first vegetable cold air inlet 147 and the second vegetable cold air inlet 151. . The air outlet 154 of the vegetable compartment fan 153 opens toward the rear surface of a lower vegetable storage case 149a, which will be described later, and the lower rear portion of the lower vegetable storage case 149a that faces the vegetable compartment fan 153 is inclined forward. A surface 155 is formed. Thereby, it is comprised so that the cold air from the vegetable compartment fan 153 may flow intensively to the lower surface space of the lower vegetable storage case 149a.

Further, as shown in FIG. 34, a second heater 156 made of a sheathed heater or the like for preventing condensation is embedded in a surface of the rear partition wall 117 facing the cooling chamber 116. The second heater 156 is disposed at a position facing the upper portion of the cooling chamber 116 and in a low-temperature cooling chamber temperature zone located below the refrigerator compartment damper 131. The refrigerator compartment damper 131 opens and closes cool air from the refrigerator compartment 116 to the refrigerator compartment 107.

In the cooling chamber cool air conveyance path 130 in the low temperature cooling chamber temperature zone, the cooling fan 119, the first heater 123 in the partition plate 106, the second heater 156 in the rear partition wall body 117, and the like A connector connecting portion 157 (box) of the member is installed (see FIG. 39). Electrical connection is made in the cooling chamber cool air conveyance path 130 which becomes the cooling chamber temperature zone.

In the vegetable compartment 108, a vegetable storage case 148 is disposed as shown in FIG. The vegetable storage case 148 includes a lower vegetable storage case 149a placed on the frame of the door 111 and an upper vegetable storage case 149b placed on the lower vegetable storage case 149a. A space is provided between the vegetable storage case 148 and the partition plate 106 disposed therebelow, and a space is also provided between the vegetable storage case 148 and the inner peripheral wall surface of the vegetable compartment 108. Yes. These spaces constitute an air passage through which the cold air from the vegetable cold air inlet 144 flows.

Also, the upper opening edge of the upper vegetable storage case 149b of the vegetable storage case 148 is located in the vicinity of the partition plate 105 above the vegetable chamber 108. This prevents the cold air flowing from the vegetable cold air inlet 144 from directly entering the upper vegetable storage case 149b and the lower vegetable storage case 149a of the vegetable storage case 148. Note that a lid that closes the upper vegetable storage case 149b may be provided to prevent cold air from entering the vegetable storage case 148.

Moreover, the lower vegetable storage case 149a may be divided | segmented into the right and left by the case partition plate 158, as shown in FIG. The side opposite to the vegetable cold air inlet 144 (right side as viewed from the front in this embodiment) is made deeper, and as a non-vegetable storage unit 159 (hereinafter referred to as a PET bottle storage unit) such as a PET bottle or a pack. Yes. Note that the vegetable compartment 108 may be divided into front and rear, and the front portion may be a container 159 such as a plastic bottle.

<Refrigerator configuration>
As shown in FIG. 28 and the like, the refrigerator compartment 107 includes a plurality of storage shelves 160 and a partial chamber 161 that can be cooled to a semi-refrigeration temperature zone. The refrigerated cold air inlet 135 and the refrigerated cold air return port 136 (see FIG. 31 for both) are provided at appropriate positions in the cold room 107. An operation unit 162 for setting the internal temperature of each room, ice making, quick cooling, and the like is disposed at an appropriate side wall of the refrigerator compartment 107.

<Freezer configuration>
In the upper part of the back wall of the freezing chamber 109, as described above with reference to FIG. 34, the freezing cold air inlet 142 communicating with the lower part of the cooling room cold air conveyance path 130 formed on the back surface of the back surface partition wall body 117 is formed. Has been. Further, a freezing cold air return port 143 communicating with the freezing chamber 109 is formed in the lower part of the back wall of the freezing chamber 109. Although not shown, a freezer damper is also incorporated at an appropriate position in the passage from the cooling chamber 116 to the freezer chamber 109. Note that the freezer compartment 109 is also provided with a freezer compartment case 163 placed on the frame of the door 112 as shown in FIG. Furthermore, an ice making device 164 is incorporated in the upper part of the freezer compartment 163.

Next, the control configuration of the refrigerator 190 will be described.

<Control configuration>
FIG. 47 shows a control block diagram in refrigerator 190 of the present embodiment. The refrigerator compartment temperature detector 165, the vegetable compartment temperature detector 166, and the freezer compartment temperature detector 167 are all formed of thermistors, and are installed at appropriate locations in the refrigerator compartment 107, the vegetable compartment 108, and the freezer compartment 109, respectively. Has been. The control unit 168 that performs overall control of the entire refrigerator 190 is configured by a microcomputer or the like. The control unit 168 controls opening and closing of the refrigerator compartment damper 131 and the freezer compartment damper 134 according to control software incorporated in advance based on outputs from the refrigerator compartment temperature detector 165 and the freezer compartment temperature detector 167. Furthermore, the control unit 168 drives the compressor 115, the cooling fan 119, and, if necessary, the first heater 123 and the second heater 156 to control each chamber to a set temperature. The control unit 168 controls the operation of the vegetable compartment fan 153 incorporated in the vegetable compartment passage portion 150 of the vegetable compartment 108 based on outputs from the refrigerator compartment temperature detection portion 165 and the vegetable compartment temperature detection portion 166. Specifically, when one of the detection means detects that the temperatures detected by the refrigerator temperature detection unit 165 and the vegetable room temperature detection unit 166 are higher than the set temperature, the vegetable room fan is detected. 153 is driven.

Furthermore, even when the temperature detected by the cold room temperature detection unit 165 and the vegetable room temperature detection unit 166 is always low and the cold room damper 131 does not open continuously for a certain time or longer, the control unit 168 controls the vegetable room fan 153. Drive.

About the refrigerator 190 comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

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

Depending on the temperature set in the refrigerator 190, the refrigeration cycle is operated by a signal from the control unit 168, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 115 is condensed and liquefied to some extent by a condenser (not shown). Further, the refrigerant condenses and liquefies while preventing condensation of the refrigerator 190 via a refrigerant pipe (not shown) disposed on the side surface and the rear surface of the refrigerator 190 and the front opening of the refrigerator 190, and the capillary tube (FIG. (Not shown). Thereafter, the refrigerant is depressurized in the capillary tube while exchanging heat with a suction pipe (not shown) to the compressor 115 to become a low-temperature and low-pressure liquid refrigerant in a cooler 118 disposed in the cooling chamber. It reaches. The refrigerant in the cooler 118 evaporates and cool air for cooling each storage chamber is generated in the cooling chamber 116 having the cooler 118.

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

The low-temperature cold air generated in the cooling chamber 116 is sent to the refrigerating chamber 107 and the freezing chamber 109 from the cooling chamber cold-air conveyance path 130 by the cooling fan 119. The cool air supplied to the refrigerator compartment 107 cools the refrigerator compartment 107 and then is supplied to the vegetable compartment 108, and each room is cooled to a set temperature. Then, the cold air that has cooled each chamber returns to the cooling chamber 116 again, is cooled by the cooler 118, and is circulated to each chamber by the operation of the cooling fan 119.

Also, the control unit 168 causes the compressor 115 and the cooling fan 119 to be at least one of operating and stopping based on the temperatures detected by the refrigerator compartment temperature detector 165 and the freezer compartment temperature detector 167. In addition, the control unit 168 controls opening and closing of the refrigerator compartment damper 131 and the freezer compartment damper 134, and maintains each chamber in a set temperature range.

Next, the cooling operation of the vegetable compartment 108 will be described.

36, the cold air after cooling in the refrigerator compartment flows into the vegetable compartment 108 from the vegetable cold air inlet 144 provided in the cold return passage 138, and cools the vegetable compartment 108.

Here, in the refrigerator 190 according to the present embodiment, as shown in FIG. 36, a vegetable room fan 153 is provided in the vegetable room 108. Therefore, by the rotation of the vegetable room fan 153, a lot of cold air is sucked into the vegetable room 108 from the vegetable cold air inlet 144, and from the outlet 154 of the vegetable room fan 153 toward the rear surface of the lower vegetable storage case 149a in the vegetable room 108. Cold air is supplied.

The cold air supplied toward the lower vegetable storage case 149a of the vegetable compartment 108 is the space between the vegetable storage case 148 and the bottom of the vegetable compartment 108, as well as the vegetable storage case 148 and the vegetable as shown by the solid arrows in FIG. It flows in a space between the inner peripheral wall of the chamber 108. And most of the cold air is returned from the vegetable cold air return port 146 to the return passage 138 from the first vegetable cold air intake port 147 and the second vegetable cold air intake port 151 through the first passage 147a and the second passage 151a. Spill into. The other part of the cold air diffuses or circulates in the vegetable compartment 108 as indicated by broken arrows.

When all the storage rooms are below the set temperature and the vegetable room fan 153 rotates with the compressor 115 and the cooling fan 119 stopped, all the cold air stops flowing, and the cold air return path 138 There is no flow of cold air. In this case, the ventilation resistance of the first vegetable cold air inlet 147, the second vegetable cold air inlet 151, the first passage 147a, and the second passage 151a is larger than the ventilation resistance in the vegetable compartment 108. The vegetable room fan 153 causes all of the cold air to diffuse and circulate in the vegetable room 108 as indicated by solid arrows in FIG.

The cold air that is diffused and circulated by the vegetable room fan 153 is easily chilled by cold radiation from the cooling room 116 located at the back of the vegetable room 108 and cold radiation from the freezing room 109 located below. The temperature near the lower back of the room is diffused into the vegetable room 108. As a result, the temperature in the vegetable compartment 108 is lowered to cool the inside of the vegetable compartment 108 more effectively, and at the same time, an extremely low temperature and a temperature difference are prevented in the vicinity of the lower part of the back of the vegetable compartment. Condensation caused by cold radiation from 109 is suppressed.

As described above, the refrigerator 190 prevents the occurrence of condensation due to the local low temperature of the vegetable compartment 108 both in the cooling operation and in the cooling stop, so the cooler 118 for generating cold air is enlarged and cooled. Even if the chamber 116 is a large large-capacity refrigerator that spans the freezing chamber 109 and the vegetable chamber 108, dew condensation due to cold radiation from the cooling chamber 116 can be suppressed. Therefore, it is possible to suppress the vegetable deterioration due to the dew condensation water generated by the cold radiation from the cooling chamber 116 in the entire refrigerator ranging from the small-capacity small refrigerator to the large-capacity large refrigerator, and to cool and store the vegetables in a good state. It becomes.

And the refrigerator 190 in this Embodiment is a "middle vegetable room type" refrigerator which provided the vegetable compartment 108 in the upper-lower-center part of the refrigerator main body 101 between the refrigerator compartment 107 and the freezer compartment 109, and is mentioned above. As described above, it is possible to improve the usability of the user who mainly uses the vegetables in and out while keeping the vegetables in a good state by preventing the occurrence of condensation.

In addition, since the vegetable room fan 153 is provided in front of the vegetable cold air inlet 144 and overlapped when viewed from the front, the air passage area on the suction side of the vegetable room fan 153 can be increased, and the vegetable room fan The wind path resistance of 153 can be reduced. Thereby, since more cold air in the vegetable compartment 108 can be diffused and circulated, the effect of suppressing the occurrence of dew condensation can be further enhanced.

Also, the vegetable compartment fan 153 causes at least one of diffusion and circulation of the cold air toward the outer periphery of the lower vegetable storage case 149a and the upper vegetable storage case 149b of the vegetable storage case 148. Therefore, it is possible to prevent cold air that is at least one of diffusion and circulation by the vegetable room fan 153 from entering the lower vegetable storage case 149a and the upper vegetable storage case 149b and flowing between the vegetables. As a result, it is possible to prevent the vegetables from drying and deterioration which tends to occur when cold air flows between the vegetables, and to cool and store the vegetables in a fresh and good state.

In particular, in the present embodiment, a first vegetable cold air inlet 147 and a second vegetable cold air inlet 151 (see FIG. 5) are provided above the vegetable storage case 148 constituted by the lower vegetable storage case 149a and the upper vegetable storage case 149b. 40). The first vegetable cold air inlet 147 and the second vegetable cold air inlet 151 also serve as cold air inlets that diffuse or circulate in the vegetable compartment. The cold air that diffuses and circulates in the vegetable compartment 108 does not enter the vegetable storage case 148 including the lower vegetable storage case 149a and the upper vegetable storage case 149b, and the first vegetable cold air inlet 147 and It flows to the second vegetable cold air inlet 151. As a result, it is possible to more reliably prevent the vegetables from being dried and to cool and store the vegetables in a fresh and good state. 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 149b closer to the partition plate 105 that also serves as the vegetable room ceiling. If the cover which covers the said upper surface opening is provided, the drying prevention effect of vegetables can be heightened more effectively.

In addition, the vegetable room fan 153 is located below the upper opening edge of the vegetable storage case 148. As a result, the cool air blown from the vegetable compartment fan 153 spreads and circulates in the vegetable storage case 148, particularly in the vicinity of the bottom surface and lower outer periphery of the lower vegetable storage case 149a. Therefore, the cold air that is at least one of diffused and circulated by the vegetable compartment fan 53 is less likely to enter the vegetable storage case 148. As a result, it is possible to reliably prevent the vegetables from being dried and deteriorated when cold air enters and circulates in the vegetable storage case 148, and the vegetables can be stored in a cooler and better state.

In the present embodiment, the vegetable storage case 148 divides the inside of the lower vegetable storage case 149a to the left and right, and a non-vegetable storage portion 159 such as a plastic bottle or a pack (hereinafter referred to as a PET bottle storage portion 159). Called). A vegetable room fan 153 is provided in the back part of the vegetable room on the side of the storage part 159 such as a plastic bottle so that the cold air in the vegetable room is diffused or circulated toward the plastic bottle storage part 159. Accordingly, the cool air blown from the vegetable room fan 153 circulates intensively around the PET bottle storage section 159, and the PET bottles and packs stored in the PET bottle storage section 159 are efficiently used. Can be cooled. In particular, since drinking water such as PET bottles and packs stored in the storage unit 159 such as PET bottles has a larger heat capacity than vegetables and is difficult to cool, cooling is effective. From the above, it is possible to efficiently suppress an increase in the temperature of the vegetable room due to the storage of a PET bottle or the like, effectively prevent the occurrence of condensation, and at the same time, preserve the vegetables well.

Particularly in the present embodiment, the vegetable room fan 153 and the first vegetable cold air suction port 147 provided in the vegetable room 108 are provided in a portion of the vegetable storage case 148 on the storage part 159 side such as a plastic bottle. Thereby, the cold air from the vegetable compartment fan 153 can be circulated more efficiently and intensively to the storage part such as a plastic bottle.

Also, a second vegetable cold air inlet 151 serving as another inlet for circulating the cold air in the vegetable compartment 108 is provided at the upper part of the vegetable compartment substantially diagonally with the vegetable compartment fan 153. As a result, the cool air blown from the vegetable compartment fan 153 passes through the bottom portion of the plastic bottle storage portion 159 of the vegetable storage case 148 and forwards at least of diffusion and circulation while obliquely longitudinally passing through the vegetable compartment 108. One side flows to the second vegetable cold air inlet 151 at the top of the vegetable compartment. Accordingly, at least one of the diffusion and circulation of the cold air over a wide area on the outer periphery of the vegetable case can be performed while preventing the cold air from entering the vegetable compartment case including the lower vegetable storage case 149a and the upper vegetable storage case 149b. it can. Therefore, vegetables, plastic bottles, etc. can be cooled effectively.

In the refrigerator 190 in the present embodiment, a communication passage 139 is formed between the refrigerated cold air going-out passage 132 and the refrigerated cold air returning passage 133. When the vegetable room fan 153 rotates, the low-temperature and fresh cold air in the refrigerated cold air passage 132 is directly mixed into the refrigerated cold air return passage 133 by the suction force, and the vegetable room is fed from the vegetable cold air inlet 144 through the return passage 138. 108 is supplied. That is, the vegetable compartment 108 is cooled by the return cold air having a relatively high temperature after cooling the refrigerator compartment. In the refrigerator 190 according to the present embodiment, the vegetable room 108 is cooled by the rotation of the vegetable room fan 153 and the low-temperature fresh air mixed with the cold air after cooling in the refrigerator compartment.

Therefore, the vegetable compartment 108 can be effectively cooled. For example, the vegetable compartment 108 can be reliably cooled even when the cooling load condition is bad, such as when a large amount of vegetables or plastic bottles are temporarily stored. can do. Further, the amount of low-temperature fresh cold air taken in via the communication path 139 can be increased by increasing the rotation speed of the vegetable compartment fan 153. Therefore, even when a large amount of room temperature PET bottles having a large heat capacity are stored in the summer, it can be reliably cooled. In addition, since the vegetable compartment 108 can be reliably cooled, the occurrence of condensation due to cold radiation from the cooling compartment 116 can be efficiently suppressed, and the vegetables can be stored in a cool state in a good state.

The vegetable compartment fan 153 operates when the refrigerator compartment damper 131 is opened by the output from the refrigerator compartment temperature detection unit 165 to cool the refrigerator compartment 107 and the vegetable compartment 108, and cool air in the vegetable compartment 108 is cooled. And at least one of diffusion and circulation. Further, in the present embodiment, the vegetable compartment fan 153 is also controlled based on the temperature detected by the vegetable compartment temperature detection unit 166 provided in the vegetable compartment 108. Thereby, even when the temperature of the refrigerator compartment 107 is high and the cooling operation is not performed, the vegetable compartment fan 153 starts to rotate when the temperature of the vegetable compartment 108 becomes equal to or higher than the set temperature, and the cold air is diffused and circulated in the vegetable compartment 108. To at least one of them. 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 116 and the condition is likely to cause dew condensation, the vegetable room fan 153 rotates to solve this problem and effectively generate dew condensation. Can be prevented.

Further, if the temperature of the vegetable compartment 108 becomes higher than the second set temperature in spite of the rotation of the vegetable compartment fan 153, the rotation speed of the vegetable compartment fan 153 is increased, and the cold air is diffused. Increase the amount of circulation. Thereby, the intake amount of low-temperature fresh cold air can be increased, and the vegetable compartment 108 can be reliably cooled. The second set temperature is set to a temperature that is slightly higher than the set temperature described above. Therefore, the lack of cooling in the summer can be solved, and good cooling storage of vegetables and the like can be surely realized to increase the reliability of the refrigerator.

(Embodiment 4)
FIG. 48 is a schematic cross-sectional view for explaining the cold air flow when the cooling fan rotates in the vegetable compartment of the refrigerator in the fourth embodiment. FIG. 49 is a schematic cross-sectional view for explaining the cold air flow when the cooling fan is stopped in the vegetable room of the refrigerator in the fourth embodiment.

Components that are common to the refrigerator 190 in the third embodiment are denoted by the same reference numerals and description thereof is omitted.

In this embodiment, the vegetable room fan 153 is arranged on the ceiling of the vegetable room 108 together with the vegetable cold air inlet 144. Furthermore, the vegetable room fan 153 has a structure in which an air outlet 154 is opened at the upper part of the vegetable room and a vegetable cold air return port 146 is provided at the lower part of the vegetable room 108. The vegetable room fan 153 is disposed obliquely in a partition plate 105 that partitions the vegetable room 108 and the refrigerator compartment 107 and constitutes the ceiling of the vegetable room 108.

Thus, when the vegetable compartment fan 153 rotates, the vegetable compartment fan 153 sucks the cold air from the return passage 138 through the vegetable cold air inlet 144 and supplies it into the vegetable compartment 108 as shown by the solid line arrow in FIG. As a result, most of the cold air is returned from the vegetable cold air return port 146 to the return passage 138, and the remaining cold air diffuses and circulates in the vegetable compartment 108 as indicated by the dashed arrows. That is, as in Embodiment 3, cold air is taken in stably and efficiently and circulated in the vegetable compartment 108.

When the vegetable compartment fan 153 stops, most of the cool air diffuses through the return passage 138 as shown by the solid line arrow in FIG. 49, and a part of the cold air diffuses through the vegetable compartment 108 as shown by the broken line arrow. Circulate. Therefore, it is possible to suppress the occurrence of dew condensation in the vegetable compartment 108 and cool and store the vegetables in a good state.

Further, since the vegetable room fan 153 is disposed in the partition plate 105 that partitions the vegetable room 108 and the refrigerated room 107, the vegetable room 108 can be efficiently cooled while securing the volume of the vegetable room 108. The vegetable room fan 153 can be provided in the vegetable room 108 in the form. That is, since the refrigerator compartment 107 is located in the upper part of the vegetable compartment 108, the vegetable compartment 108 is cooled appropriately by the cold radiation from the refrigerator compartment 107. As a result, since the partition plate 105 does not need to incorporate a heat insulating material for reinforcing heat insulation, the vegetable room fan 153 can be incorporated using the space. Moreover, since the vegetable compartment fan 153 is inclined, it is not necessary to greatly increase the thickness of the partition plate 105 even though the vegetable compartment fan 153 is incorporated. Thereby, the volume of the vegetable compartment 108 can be ensured large.

In the present embodiment, not only the cooling chamber 116 but also the cooling chamber cool air conveyance path 130 from the cooling chamber 116 to the refrigeration chamber damper 131 on the downstream side of the cooling fan 119 has the same cryogenic temperature as the cooling chamber 116. It is in the temperature range. Therefore, strong cold radiation is received in the portion facing the cooling chamber temperature zone from the cooling chamber 116 to the refrigerator compartment damper 31. In the present embodiment, the cooling chamber temperature zone including the cooling chamber cool air conveyance path 130 is collectively referred to as a cooling chamber 116.

<Other embodiments>
In the third and fourth embodiments, the refrigerator 190 in which the vegetable cold air inlet 144 and the vegetable cold air return port 146 are separately provided in the vegetable chamber 108 has been described as an example. However, the present invention is not limited thereto. The vegetable cold air inlet 144 and the vegetable cold air return port 146 may be combined into a cold air inlet / outlet, and the vegetable room fan 153 may be provided in an offset state in front of the cold air inlet / outlet. In this case, the cold air in the cold air return passage 138 is sucked and supplied into the vegetable compartment 108 from the opening portion of the vegetable air inlet / outlet which is biased toward the vegetable compartment fan 153 side. On the other hand, the cold air in the vegetable compartment 108 flows out into the cold air return passage 138 from the opening portion that is biased to the opposite side of the vegetable compartment fan 153. Therefore, although the amount of cold air flowing into and out of the vegetable compartment 108 decreases, this conversely suppresses the entire cold air in the vegetable compartment from being replaced one after another. Therefore, in the vegetable compartment 108, a large amount of high-humidity cold air containing moisture transpiration from the vegetables is retained, and drying deterioration of the vegetables can be prevented. In the vegetable compartment 108, the rotation of the vegetable compartment fan 153 causes the cool air to diffuse and circulate in the vegetable compartment, thereby preventing condensation.

In the third and fourth embodiments, the “middle vegetable type” refrigerator 190 in which the vegetable compartment 108 is provided between the refrigerator compartment 107 and the freezer compartment 109 has been described as an example. However, the present invention is not limited thereto. The present invention can also be applied to a refrigerator in which the vegetable compartment 108 is disposed at the lowermost part and the cooling compartment 116 is installed across the back of the vegetable compartment 108 and the freezing compartment 109.

Further, at least one of the supply and stop of the cold air to the vegetable room 108 is performed also as the refrigerator compartment damper 131, but at least one of supply and stop is performed by providing a damper dedicated to the vegetable room. You may make it let. In that case, at least one of supply and stop may be operated to the vegetable room dedicated damper in conjunction with the vegetable room fan 153 by the outputs of the cold room temperature detection unit 165 and the vegetable room temperature detection unit 166. Or you may operate at least one of supply and a stop only with the damper only for vegetable compartments.

Furthermore, although the vegetable room fan 153 showed the example controlled by the output from the vegetable room temperature detection part 166 provided in the vegetable room 108, it is not restricted to this, interlocking with the output of the refrigerator compartment temperature detection part 165 It may be controlled. Or you may make it repeat rotation of the vegetable compartment fan 153 intermittently for a predetermined time, and what is necessary is just to select suitably according to the characteristic of a refrigerator.

Furthermore, although the compressor 115 has shown the example installed in the upper back area | region of the refrigerator main body 101, it is not restricted to this. For example, the compressor 115 may be provided at the lower rear of the refrigerator main body 101.

(Embodiment 5)
FIG. 50 is a front view of the refrigerator in the fifth embodiment of the present invention. FIG. 51 is a front view when the door of the refrigerator in the fifth embodiment is opened. 52 is a cross-sectional view taken along the line 52-52 in FIG. 51, showing the refrigerator according to the fifth embodiment. 53 is a cross-sectional view taken along the line 53-53 in FIG. 51, showing the refrigerator according to the fifth embodiment. FIG. 54 is a perspective view when the refrigerator in the fifth embodiment is cut in half in the vertical direction when viewed from the front. FIG. 55 is a schematic cross-sectional view for explaining the cold air flow of the refrigerator in the fifth embodiment. FIG. 56 is a schematic front view illustrating the cold air flow of the refrigerator in the fifth embodiment. FIG. 57 is a perspective view for explaining the cold air flow in the rear portion of the cooling chamber of the refrigerator in the fifth embodiment. 58 is an enlarged cross-sectional view of the main part of FIG. 52 showing the refrigerator in the fifth embodiment. FIG. 59 is a schematic cross-sectional view for explaining the cold air flow in FIG. FIG. 60 is an enlarged cross-sectional view of the main part of FIG. 53 showing the refrigerator in the fifth embodiment. FIG. 61 is a schematic cross-sectional view for explaining the cold air flow in FIG. FIG. 62 is an enlarged front view showing the vegetable compartment and the freezer compartment of the refrigerator in the fifth embodiment. FIG. 63 is an enlarged front view showing a cooling fan and a cooler installed on the back of the vegetable compartment and freezer compartment of the refrigerator shown in FIG. FIG. 64 is an enlarged perspective view showing a back wall portion of the vegetable compartment and the freezer compartment of the refrigerator in the fifth embodiment. FIG. 65 is a perspective view of a rear partition wall block constituting the back wall portion of the vegetable compartment of the refrigerator shown in FIG. 66 is an exploded perspective view of a rear partition wall block constituting the back wall portion of the vegetable compartment shown in FIG. 67 is an exploded perspective view of a block constituting the back wall portion of the freezer compartment shown in FIG. FIG. 68 is a perspective view of a partition plate and a cooling fan for partitioning the refrigerator storage room and the vegetable compartment in the fifth embodiment. FIG. 69 is a perspective view showing a vegetable storage case of the refrigerator in the fifth embodiment. FIG. 70 is a control block diagram of the refrigerator in the fifth embodiment. FIG. 71 is a flowchart illustrating the vegetable room cooling operation of the refrigerator in the fifth embodiment. FIG. 72 is a timing chart showing the operation when the vegetable compartment of the refrigerator in the fifth embodiment is soaked by cold air circulation. FIG. 73 is a timing chart showing a cooling operation when the vegetable compartment of the refrigerator in the fifth embodiment is cooled while being soaked by cold air circulation. FIG. 74 is a timing chart showing temperature equalization and cooling operation by cold air circulation when the temperature of the vegetable compartment of the refrigerator in the fifth embodiment is higher than a predetermined temperature. FIG. 75 is a timing chart showing the cooling state of the vegetable compartment controlled by the refrigerator control in the fifth embodiment.

First, the overall configuration of the refrigerator 290 will be described.

<Fridge body configuration>
Refrigerator 290 according to the present embodiment includes a refrigerator main body 201 whose front can be opened and closed. As shown in FIG. 52 and the like, the refrigerator main body 201 includes an outer box 202 mainly using a steel plate, an inner box 203 molded with a hard resin such as ABS, and between the outer box 202 and the inner box 203. It is composed of a foam heat insulating material 204 such as hard foam urethane filled with foam. The refrigerator main body 201 is divided into a plurality of storage rooms by

partition plates

205 and 206. The refrigerator body 201 includes a refrigerator compartment 207 at the top, a vegetable compartment 208 at the bottom of the refrigerator compartment 207, and a freezer compartment 209 at the bottom. The front opening of each storage chamber is closed by a door 210, a door 211, and a door 212 so as to be opened and closed.

As shown in FIG. 52, a machine room 214 is provided in the upper rear region of the refrigerator main body 201. The machine room 214 accommodates high-pressure components of the refrigeration cycle such as the compressor 215 and a dryer (not shown) for removing moisture.

A cooling chamber 216 for generating cold air is provided on the back of the refrigerator main body 201. The cooling chamber 216 is formed from the back surface of the freezing chamber 209 to the lower back surface of the vegetable chamber 208. Between the cooling chamber 216 and the vegetable compartment 208, a rear partition wall body 217 which is provided with a heat insulating property by a polystyrene foam or the like is provided, and thereby a heat insulating partition is formed.

A cooler 218 is disposed in the cooling chamber 216, and a cooling fan 219 is disposed above the cooler 218. The cooling fan 219 cools each room by forcibly circulating the cold air cooled by the cooler 218 to the refrigerating room 207, the vegetable room 208, and the freezing room 209. For example, the refrigerator compartment 207 is cooled to a temperature of 1 ° C. to 5 ° C. at which food is not frozen, and the vegetable compartment 208 is cooled to a temperature of 2 ° C. to 7 ° C. that is equal to or slightly higher than the refrigerator compartment 207. The freezer compartment 209 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. It may be cooled down.

68, the cooling fan 219 is assembled to a partition plate 206 that partitions the vegetable compartment 208 and the cooling compartment 216. The cooling fan 219 is attached inside the refrigerator main body 201 by setting the partition plate 206 in the inner box 203 of the refrigerator main body 201. In this state, the cooling fan 219 is located at a portion facing the back of the vegetable compartment 208 as shown in FIGS. The cooling fan 219 blows cold air toward the rear partition wall body 217 that partitions the vegetable compartment 208 and brings strong cold radiation to the lower back of the vegetable compartment.

In the lower space of the cooler 218, as shown in FIG. 58 and the like, a cooler 218 or a defrost heater 228 for defrosting frost and ice adhering to the periphery of the cooler 218 is arranged. A drain pan 229 for receiving defrost water generated at the time of defrosting is disposed below the defrost heater 228. The defrost water is discharged from the deepest part of the drain pan 229 to an evaporating dish outside the warehouse through a drain tube (not shown).

Next, the cold air circulation configuration will be described.

<Cooling air circulation path configuration>
As shown in FIG. 58, FIG. 59, etc., in the cooling chamber 216, the downstream of the cooling fan 219 opens into the cooling chamber cool air conveyance path 230 formed between the rear partition wall 217 and the refrigerator body 201. ing. Cold air is blown into each chamber through the cooling chamber cold air conveyance path 230.

As shown in FIG. 56, FIG. 57, and FIG. 59, the upper part of the cooling chamber cold air conveyance path 230 communicates with the refrigerated cold air going-out passage 232 via the refrigeration chamber damper 231. The refrigerated cold air passage 232 is formed substantially in the center of the back surface of the refrigeration chamber 207. On the side of the refrigerated cold air passage 232, as shown in FIGS. 56 and 57, a refrigerated cold air return passage 233 from the refrigerator compartment 207 is installed adjacently. The lower part of the refrigerated cold air return passage 233 communicates with the vegetable compartment 208 and the cooling compartment 216.

As shown in FIG. 56, a refrigerating / cooling air inlet 235 of a refrigerating / refrigerating air passage 232 is provided at an appropriate position above the rear wall of the refrigerating chamber 207. A refrigerated cold air return opening 236 that opens to the refrigerated cold air return passage 233 is provided at an appropriate position below the rear wall. The cold air blown from the cooling chamber 216 is supplied to the refrigerating / refrigerating air passage 232 via the refrigerating chamber damper 231, and further supplied to the refrigerating chamber 207 from the refrigerating / refrigerating air inlet 235. On the other hand, the cold air that has cooled the refrigerating room is supplied from the refrigerating cold air return port 236 to the vegetable room 208 via the refrigerating cold air return passage 233 and then circulates to the cooling room 216. In addition, a partial chamber is provided below the refrigerator compartment 207 as will be described later. As shown in FIG. 57, the partial chamber is supplied with cold air through a partial chamber damper 231a, a partial chamber cold air passage 232a, and a partial chamber cold air inlet 235a.

In this embodiment, as is clear from FIG. 57, an outward passage 237 and a return passage 238 are formed on the back surface of the rear partition wall 217 and the partition plate 206. The forward passage 237 communicates the cooling chamber cold air conveyance passage 230 and the refrigerated cold air forward passage 232. Further, the forward passage 237 communicates the cooling chamber cold air conveyance path 230 and the partial chamber cold air forward passage 232a. The return passage 238 communicates the refrigerated cold air return passage 233 with the vegetable compartment 208 and the cooling compartment 216. The refrigerator compartment damper 231 and the like are provided in the outgoing passage 237.

A communication passage 239 is provided between the refrigerated cold air return passage 232 and the refrigerated cold air return passage 233, and a part of the low-temperature cold air flowing through the refrigerated cold air return passage 232 is directly mixed into the refrigerated cold air return passage 233.

As shown in FIG. 57, on the back surface of the freezer compartment 209, a cool air return duct 240 is provided that extends downward on the side of the cooler 218. The upper part of the cool air return duct 240 communicates with the vegetable compartment 208 via a return passage 238. The lower part of the cool air return duct 240 opens near the lower part of the cooling chamber 216, and the cool air that has cooled the vegetable compartment 208 passes from the lower opening to the cooling chamber 216 via the return passage 238 and the cool air return duct 240. Circulate.

On the other hand, in the freezer compartment 209, as shown in FIG. 59, a freezing cold air inlet 242 communicating with the lower part of the cooling room cold air conveyance path 230 on the back surface of the rear partition wall body 217 is formed in the upper part of the back wall body 241. . In addition, a refrigerated cold air return port 243 that opens to the lower part of the cooling chamber 216 is formed in the lower part of the back wall 241. The cold air circulated from the cooling chamber 216 is supplied to the freezing chamber from the lower portion of the cooling chamber cold air conveyance path 230 via the freezing cold air inlet 242. Then, the cold air after cooling in the freezer compartment is circulated to the cooling chamber 216 via the freezer cold air return port 243.

<Vegetable room configuration>
As shown in FIGS. 56, 57 and 61, the vegetable compartment 208 is provided on either the left or right side of the back wall. In this Embodiment, the vegetable compartment 208 is provided in the lower part of the right side part seeing from the front. The vegetable compartment 208 is provided with one vegetable cold air inlet / outlet 244 that opens to the return passage 238 from the refrigerated cold air return passage 233. As shown in FIG. 57, the vegetable cold air inlet / outlet 244 is provided so as to be located above the lower end of the bell mouth opening of the cooling fan 219. Thereby, when the low-temperature cold in the cooling chamber 216 flows backward through the cold return duct 240 and the return passage 238 when the cooling fan 219 is stopped, the low-temperature cold is prevented from flowing into the vegetable compartment 208 from the vegetable cold air inlet / outlet 244. To do.

In the vegetable compartment 208, as shown in FIG. 61 in particular, a vegetable compartment passage portion 250 is formed in the vertical direction at the front position of the cool air return passage 238 using the rear partition wall 217 on the back of the vegetable compartment 208. Has been. The upper part of the vegetable compartment passage portion 250 communicates with the first vegetable cold air inlet 247 of the first passage 247a provided in the front-rear direction at the upper part of the vegetable compartment 208. Further, the lower part of the vegetable compartment passage portion 250 communicates with the vegetable cold air inlet / outlet 244.

In the vegetable room 208, a vegetable room fan 253 made of a propeller fan or the like is arranged at a portion facing the vegetable cold air inlet / outlet 244. The vegetable room fan 253 is arranged so as to be offset so that the horizontal central axis is positioned below the horizontal central axis of the vegetable cold air inlet / outlet 244. The vegetable room fan 253 is located in front of the vegetable cold air inlet / outlet 244, and is installed so that the vegetable room fan 253 and the vegetable cold air outlet / exit 244 overlap when viewed from the front. When the amount of cooling of the vegetable room 208 is required to be large, it is effective to increase the opening area of the vegetable cold air inlet / outlet 244, and when the amount of cooling is small, it is effective to reduce the opening area of the vegetable cold air outlet / exit 244. is there. In any case, the lower end of the vegetable cold air inlet / outlet 244 is provided at a position lower than the upper end of the vegetable compartment fan 253, and is arranged so as to overlap in the front-rear direction.

Moreover, in the upper part of the vegetable compartment 208, as shown in FIG. 62, FIG. 65, etc., it is the upper part of the back surface partition wall body 217 which becomes the back face of the vegetable compartment 208, and becomes the diagonal position of the vegetable cold air entrance / exit 244. The part is provided with a second vegetable cold air inlet 251. In the present embodiment, a second vegetable cold air inlet 251 is provided at the upper left side of the vegetable chamber 208. The 2nd channel | path 251a provided with the 2nd vegetable cold air inlet 251 is connected to the upper part of the vegetable compartment channel | path part 250, as shown in FIG.

FIG. 66 is an exploded perspective view of the rear partition wall 217 forming the vegetable compartment passage section 250, the second vegetable cold air inlet 251 and the second vegetable cold air inlet 251. The vegetable compartment passage section 250 is formed between a front partition plate 217a and a rear partition plate 217b that are polymerized via a polystyrene foam (not shown). An upper end portion 250a of the vegetable compartment passage portion 250 is open to the first passage 247a and the second passage 251a. As described above, the vegetable room fan 253 is incorporated in the lower part of the vegetable room passage section 250, and the air outlet 254 opens into the vegetable room 208. The vegetable room fan 253 blows into the vegetable room 208 the cold air flowing from the vegetable cold air inlet / outlet 244 and the vegetable room cold air sucked from the first vegetable cold air inlet 247 and the second vegetable cold air inlet 251. To do.

In the vegetable compartment 208, a vegetable storage case 248 is disposed as shown in FIG. The vegetable storage case 248 includes a lower vegetable storage case 249a placed on the frame of the door 211 and an upper vegetable storage case 249b placed on the lower vegetable storage case 249a. A space is provided between the vegetable storage case 248 and the partition plate 206 disposed below the vegetable storage case 248, and a space is also provided between the vegetable storage case 248 and the inner peripheral wall surface of the vegetable room 208. Yes. These spaces constitute an air passage through which cold air flowing from the vegetable cold air inlet / outlet 244 flows.

Further, the upper opening edge of the upper vegetable storage case 249b of the vegetable storage case 248 is located in a portion close to the partition plate 205 in the upper portion of the vegetable chamber 208, and is located above the vegetable cold air inlet / outlet 244. This prevents the cold air flowing from the vegetable cold air inlet / outlet 244 from directly entering the upper vegetable storage case 249b and the lower vegetable storage case 249a. In addition, a lid that closes the upper vegetable storage case 249b may be provided at the upper opening of the upper vegetable storage case 249b to more reliably prevent cold air from entering the vegetable storage case 248.

Also, the lower vegetable storage case 249a may be divided into left and right by a case partition plate 258 as shown in FIG. The lower vegetable storage case 249a has a non-vegetable storage portion 259 (hereinafter referred to as a PET bottle) such as a PET bottle or a pack, with the side facing the vegetable cold air inlet / outlet 244 (in this embodiment, the right side as viewed from the front) one step deeper. And so on.) In addition, the inside of the vegetable compartment 208 may be partitioned back and forth, and the front portion may be a storage portion 259 such as a plastic bottle.

<Refrigerator configuration>
As shown in FIG. 53 and the like, the refrigerator compartment 207 includes a plurality of storage shelves 260 and a partial chamber 261 that can be cooled to a semi-refrigeration temperature zone. A refrigerated cold air inlet 235 and a refrigerated cold air return port 236 (both of which are shown in FIG. 56) are provided at appropriate locations in the cold room 207. An operation unit 262 for setting the internal temperature of each room, ice making, rapid cooling, and the like is arranged at an appropriate side wall of the refrigerator compartment 207.

<Freezer configuration>
As described above with reference to FIG. 59, a freezing cold air inlet 242 that communicates with the lower part of the cooling room cold air conveyance path 230 formed on the back surface of the rear surface partition wall body 217 is formed in the upper rear wall of the freezing room 209. ing. Further, a freezing cold air return port 243 communicating with the cooling chamber 216 is formed in the lower portion of the back wall of the freezing chamber 209. Although not shown, the freezer damper 234 may be incorporated at an appropriate position in the passage from the cooling chamber 216 to the freezer compartment 209. The freezer compartment 209 is also provided with a freezer compartment case 263 mounted on the frame of the door 212 as shown in FIG. Furthermore, an ice making device 264 is incorporated in the upper part of the freezer compartment 263.

Next, the control configuration of the refrigerator 290 will be described.

<Control configuration>
FIG. 70 shows a control block diagram in the refrigerator of the present embodiment. The refrigerator compartment temperature detector 265, the vegetable compartment temperature detector 266, the freezer compartment temperature detector 267, and the outside air temperature detector 268 are all formed of thermistors. The refrigerator compartment 207, the vegetable compartment 208, and the freezer compartment 209, respectively. , And in the proper place of the refrigerator main body 201. The control unit 269 that performs overall control of the refrigerator 290 is configured by a microcomputer or the like. The control unit 269 controls opening and closing of the refrigerator compartment damper 231 and the freezer compartment damper 234 according to control software incorporated in advance based on outputs from the refrigerator compartment temperature detector 265 and the freezer compartment temperature detector 267. Further, the control unit 269 drives the compressor 215 and the cooling fan 219 to control each chamber to a set temperature. Further, the control unit 269 operates the vegetable room fan 253 incorporated in the vegetable room passage unit 250 of the vegetable room 208 based on outputs from the refrigerator temperature detecting unit 265, the vegetable room temperature detecting unit 266, and the outside air temperature detecting unit 268. To control. A specific control method will be described later.

About the refrigerator 290 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 269 according to the set temperature in the refrigerator 290, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged from the compressor 215 is condensed and liquefied to some extent by a condenser (not shown). Further, the refrigerant condenses and liquefies while preventing condensation of the refrigerator 290 via a refrigerant pipe (not shown) disposed on the side surface and the rear surface of the refrigerator 290 or the front opening of the refrigerator 290 and the like. (Not shown). Thereafter, the refrigerant is decompressed while exchanging heat with a suction pipe (not shown) to the compressor 215 in the capillary tube to become a low-temperature and low-pressure liquid refrigerant and reaches the cooler 218. The refrigerant supplied into the cooler 218 evaporates and cool air for cooling each storage chamber is generated in the cooling chamber 216.

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

The low temperature cold air generated in the cooling chamber 216 is sent from the cooling chamber cold air conveyance path 230 to the refrigerator compartment 207 and the freezer compartment 209 by the cooling fan 219. After the cold air supplied to the refrigerator compartment 207 cools the refrigerator compartment 207, a part of the return cold air is supplied to the vegetable compartment 208, and each room is cooled to a set temperature. Then, the cold air that has cooled each chamber returns to the cooling chamber 216, is cooled by the cooler 218, and is circulated to each chamber by the cooling fan 219. Further, the control unit 269 causes the compressor 215 and the cooling fan 219 to operate and stop based on the detected temperatures of the refrigerator compartment temperature detector 265 and the freezer compartment temperature detector 267, so that Cold supply is performed. In addition, the control unit 269 controls opening and closing of the refrigerator compartment damper 231 and the freezer compartment damper 234, and maintains each chamber in a set temperature range.

Next, the cooling operation of the vegetable compartment 208 will be described.

The cold air after cooling in the refrigerator compartment is supplied to the vegetable compartment 208 from the vegetable cold air inlet / outlet 244 provided in the cold return passage 238 as shown in FIG. 61, and the vegetable compartment 208 is cooled. Since the opening provided in the vegetable compartment 208 is only one vegetable cold air entrance / exit 244, the cold air supplied to the vegetable compartment 208 circulates as follows. During the operation of the cooling fan 219, that is, during the cooling operation, the vegetable room is changed so that the cold air is replaced with a part of the cold air in the vegetable room due to the pressure difference between the vegetable room 208 and the return passage 238 generated by the ventilation of the cooling fan 219. It slowly flows into 208. Further, the cold air flows through the space between the vegetable storage case 248 and the inner peripheral wall of the vegetable compartment 208, indirectly cools the vegetables, plastic bottles, etc. stored in the vegetable storage case 248 from the outer periphery of the case. It flows out from the entrance / exit 244 to the return passage 238. The cool air circulates from the cool air return duct 240 to the cooling chamber 216.

Therefore, the cold air entering and exiting the vegetable compartment 208 is milder and the amount thereof is relatively smaller than when the cold air inlet / outlet is provided separately. Therefore, the amount of cold air in the vegetable compartment 208 is slightly changed, and most of the cold air remains in the vegetable compartment 208. That is, the cold air in the vegetable compartment 208 is maintained in a high humidity state including the moisture evaporated from the vegetables. Therefore, compared with the case where the cool air in the vegetable room 208 is circulated and replaced in large quantities, the drying deterioration of the vegetables can be greatly reduced, and the vegetables can be stored in a cooled state in a considerably better state than before. It becomes.

On the other hand, in the refrigerator 290 shown in the present embodiment, as shown in FIG. 61, the vegetable room fan 253 is provided at the lower part of the vegetable room passage section 250 of the vegetable room 208 and facing the vegetable cold air inlet / outlet 244. ing. When the vegetable compartment fan 253 rotates during the cooling operation, most of the return cold air flowing through the return passage 238 is sucked into the vegetable compartment passage portion 250 from the vegetable cold air inlet / outlet 244. Cold air is supplied from the outlet 254 of the vegetable compartment fan 253 toward the rear surface of the lower vegetable storage case 249a in the vegetable compartment 208.

Here, in this embodiment, the vegetable room fan 253 is arranged in an offset state with the vegetable cold air inlet / outlet 244. For this reason, the entry / exit of the cold air performed through the vegetable cold air inlet / outlet 244 becomes relatively smooth even if the opening is only one vegetable cold air inlet / outlet 244, and reliable suction and intake are possible. That is, as shown by X and Y in FIG. 61, in the portion near the lower end of the vegetable cold air inlet / outlet 244 close to the central axis of the vegetable room fan 253 (lower part in FIG. 61), cold air enters the vegetable room 208 as shown by X. Flows in. On the other hand, at the portion near the upper end of the vegetable cold air inlet / outlet 244 far from the central axis of the vegetable room fan 253 (upper part in FIG. 61), the cold air is clearly divided so as to flow out of the vegetable room 208 as indicated by Y. Become. Therefore, even if it is one vegetable cold air entrance / exit 244, it can be prevented that cold air enters and exits and the cold air is stagnated, resulting in insufficient cold air intake. That is, the cool air can be reliably sucked and taken in from the return passage 238, and the cool air can be supplied into the vegetable compartment 208 from the outlet 254 of the vegetable compartment fan 253.

And even in this case, since there is only one cold air inlet / outlet, the amount of replacement of cold air in the vegetable room is small compared to the case where the cold air inlet / outlet is provided separately, and the vegetable room 208 is kept in a high humidity state, The effect of preventing drying deterioration is maintained.

The cold air taken into the vegetable compartment 208 and supplied toward the vegetable storage case 248 in the vegetable compartment 208 as described above is the space between the vegetable storage case 248 and the bottom of the vegetable compartment 208, and the vegetable storage case. The space between H.248 and the inner peripheral wall flows faster than the flow when circulating only by the blowing pressure of the cooling fan 219. As described above, the cold air circulates from the vegetable cold air inlet / outlet 244 to the cooling chamber 216 via the return passage 238 and circulates. At that time, the cold air other than the cold air returning to the cooling chamber 216 is circulated from the first vegetable cold air inlet 247 and the second vegetable cold air inlet 251 provided in the upper part of the vegetable chamber 208. It is sucked into the second passage 251a and sucked into the vegetable compartment fan 253 through the vegetable compartment passage portion 250 communicating with these passages. The cold air sucked into the vegetable room fan 53 through the vegetable room passage section 250 is supplied again from the air outlet 254 of the vegetable room fan 253 toward the vegetable storage case 248 in the vegetable room 208 and diffuses in the vegetable room 208. And circulate.

Next, prevention of condensation in the vegetable room 208 will be described.

The vegetable room 208 receives cold radiation from the cooling room 216 located on the back of the vegetable room 208 and the freezing room 209 located below the vegetable room 208. As a result, the temperature in the vicinity of the lower back of the vegetable compartment 208 is likely to be lowered as in the conventional case. In particular, the cold radiation from the cooling chamber 216 is strong. The back side of the vegetable room 208 receives strong cold radiation at a part facing the cooling room temperature zone from the cooling room 216 to the refrigerating room damper 231, and this part tends to be lowered in temperature. This is because the cooling chamber cool air conveyance path 230 from the cooling chamber 216 to the refrigerating chamber damper 231 as well as the cooling chamber 216 itself is in the same cryogenic temperature range as the cooling chamber 216. . The lowering of the temperature in the vicinity of the lower back of the vegetable room due to the cold radiation is resolved by the diffusion and circulation of the cold air in the vegetable room 208 by driving the vegetable room fan 253 in both cases of cooling operation and stopping cooling. To do. That is, when the vegetable room fan 253 is driven, the cold air in the vegetable room 208 diffuses and circulates, the temperature is dispersed by the cold air that diffuses and circulates, and local temperature reduction is suppressed. More specifically, the cold air diffused and circulated in the vegetable compartment 208 by the vegetable compartment fan 253 is generated from the cold radiation from the cooling room temperature zone located on the back of the vegetable compartment 208 and the freezer compartment 209 located below the vegetable compartment 208. The temperature in the vicinity of the lower part of the back of the vegetable room, which is easy to lower the temperature, is diffused into the vegetable room 208. That is, the cold air diffused and circulated in the vegetable compartment 208 by the vegetable compartment fan 253 cools the vegetable compartment 208 by lowering the temperature in the vegetable compartment 208, and at the same time, extremely low temperature or temperature near the lower back of the vegetable compartment. Suppresses the occurrence of differences and prevents condensation.

When all the chambers are below the set temperature and the operations of the compressor 215 and the cooling fan 219 are stopped, the pressure difference generated by the operation of the cooling fan 219 is eliminated, and all the cold air is generated due to the temperature difference. It begins to flow to the equilibrium state due to the density difference. In this case, since the pressure in the freezing chamber 209 is the second highest after the cooling chamber cold air conveyance path 230, the cold air in the cooling chamber cold air conveyance path 230, the cooling chamber 216, and the freezing chamber 209 continues to spread until the pressure difference is eliminated. At this time, since the cool air in the freezer compartment 209 and the cooler chamber 216 is relatively low temperature and high in density, the cool air in at least the cooler chamber cool air conveyance path 230 flows down, The cold air reaches the height of the coldest cooling chamber 216. Here, since the cooling chamber 216 and the freezing chamber 209 are filled with cold cold air, the cold cooling air flowing down described above is connected to the cooling chamber 216 and the freezing chamber 209 through the cold air return passage 238. It spreads out. The cold air that has spread to the return passage 238 reaches the upper end of the cool air that flows back through the return passage 238 and accumulates in the cooling chamber 216, that is, the lower end height of the cooling fan 219 that opens above the cooling chamber 216.

In the present embodiment, since the lower end of the vegetable cold air inlet / outlet 244 is set higher than the height of the bell mouth lower end of the cooling fan 219, it is possible to suppress the backflow of cold air from flowing into the vegetable room 208 from the vegetable cold air inlet / outlet 244. Thereby, it is possible to prevent the vegetable compartment 208 from being locally cooled by the backflow cold air, and to prevent dew condensation, freezing, and overcooling in the vegetable compartment 208, so that deterioration of stored vegetables can be prevented.

As described above, the occurrence of dew condensation due to the local low temperature of the vegetable compartment 208 is prevented both in the cooling operation and when the cooling is stopped. Therefore, the cooler 218 for generating cold air is enlarged, and the cooling compartment Even if 216 is a large-capacity large-sized refrigerator that spans the freezer compartment 209 and the vegetable compartment 208, dew condensation caused by cold radiation from the cooling compartment 216 can be suppressed. Therefore, in the entire refrigerator ranging from a small refrigerator with a small capacity to a large refrigerator with a large capacity, it is possible to suppress the deterioration of vegetables due to condensed water caused by cold radiation from the cooling chamber 216, and to cool and store the vegetables in a good state. It becomes. In addition, this refrigerator is a “middle vegetable room type” in which the vegetable compartment 208 is provided between the refrigerator compartment 207 and the freezer compartment 209, so that condensation is prevented and the vegetables are cooled and stored in a good state. In addition, it is possible to improve the usability of the user who mainly uses the vegetables in and out.

Next, cooling and dew prevention control of the vegetable compartment 208 will be described with reference to FIGS.

FIG. 71 is a flowchart illustrating the vegetable room cooling operation of the refrigerator in the fifth embodiment. FIG. 72 is a timing chart showing the operation when the vegetable compartment is soaked by cold air circulation. FIG. 73 is a timing chart showing a cooling operation when the vegetable compartment is cooled while being warmed by cold air circulation. FIG. 74 is a timing chart showing temperature equalization and cooling operation by cold air circulation when the temperature of the vegetable compartment is higher than a predetermined temperature. FIG. 75 is a flowchart showing an example of an actual cooling situation in the vegetable compartment.

As shown in the flowchart of FIG. 71, the refrigerator 290 according to the present embodiment first determines whether or not the cooling operation is possible based on the temperature of the refrigerator compartment 207 or the freezer compartment 209, as in the case of an ordinary refrigerator (S1). That is, whether or not the compressor 215 and the cooling fan 219 can be operated is determined. For example, when the temperature of the freezer compartment 209 is equal to or higher than the set temperature, the controller 269 drives the compressor 215 and the cooling fan 219 based on the output from the freezer compartment temperature detector 267. And the control part 269 is the freezer compartment damper 234, the refrigerator compartment damper 231, and the partial compartment damper (Hereinafter, the refrigerator compartment damper 231 which controls the cold air supply to the vegetable compartment 208 is demonstrated as an example for simplification of explanation). open. As a result, the cold air generated by the cooler 218 is supplied to the vegetable compartment 208 together with the freezer compartment 209, the refrigerator compartment 207, etc., and cools the refrigerator compartment 207, the vegetable compartment 208, and the freezer compartment 209. At this time, as described above, the vegetable compartment 208 is gently cooled by the intake of cold air by the cooling fan 219.

Next, after determining whether or not cooling operation is possible (S1), the outside air temperature is taken in and the outside air temperature state is determined (S2). Based on the determined temperature result, the initially set driving time (ON driving time and OFF time) of the vegetable compartment fan 253 is corrected and set as the timer driving time (S3). For example, the timer drive time is set such that the fan drive time is increased in summer when the outside air temperature is equal to or higher than a predetermined temperature, and the fan drive time is shortened in winter when the external temperature is lower than the predetermined temperature.

Next, the temperature of the vegetable room is taken in, and it is determined whether or not it is within a temperature range at the time of stable cooling, that is, a predetermined temperature range predetermined in design (S4). )to go into.

On the other hand, if it is determined in the above step (S4) that the temperature of the vegetable room is not lower than a predetermined temperature range, for example, the temperature at the time of transition such that the temperature is increased by taking in or out vegetables or the like, the temperature control operation (S6) is entered.

If it is determined in the above step (S4) that the vegetable room temperature is not more than the predetermined temperature range, the temperature in the vegetable room 208 is sufficiently low, and the control unit 269 puts the vegetable room fan 253 in a stopped state (S14). Thereby, the electric power consumption accompanying rotating the vegetable compartment fan 253 can be suppressed, and favorable cooling preservation | save of vegetables can be implement | achieved.

Next, the timer control operation (S5) will be described.

When entering the timer control operation (S5), it is first confirmed whether or not the cooling operation is being performed, that is, whether or not the compressor 215 and the cooling fan 219 are operating (S8).

If not in operation, the vegetable room fan 253 is stopped (S14). Thereby, although the refrigerator 290 has stopped operation, it can prevent giving a distrust to a user by the vegetable room fan 253 rotating and hearing the sound.

If it is in operation, then the refrigerator compartment damper 231 is opened, that is, the refrigerator compartment damper 231 is opened and the cold air from the refrigerator compartment 216 is supplied to the refrigerator compartment 207 and the vegetable compartment 208 to cool each of these compartments. It is confirmed whether or not (S9).

If the refrigerating room damper 231 is closed and the cooling of the refrigerating room 207 and the vegetable room 208 is stopped, the temperature equalizing operation (S10) for preventing the condensation of the vegetable room is performed based on the timer driving time. . In the temperature equalizing operation performed when the refrigerator compartment damper 231 is closed, the cold air does not flow through the return passage 238. Therefore, the cold air in the vegetable compartment 208 is circulated in the vegetable compartment 208 by the rotation of the vegetable compartment fan 253. Eliminates temperature differences in the vegetable compartment and suppresses condensation.

Although not shown, the temperature equalizing operation is performed even when the temperature of the refrigerator compartment and the temperature of the vegetable compartment is always low and the refrigerator compartment damper 231 is not opened continuously for a certain period of time or longer. The fan 253 is driven to prevent the occurrence of condensation. That is, the control unit 269 forces the vegetable compartment fan 253 to stop when the operation of the compressor for generating cold air is stopped within a predetermined time. When the cold air generating compressor is stopped for a certain time or longer, the vegetable compartment fan 253 is driven based on the timer control operation.

Here, the soaking operation is performed when the vegetable compartment fan 253 is rotationally controlled at a predetermined time, and thus the temperature in the vegetable compartment 208 is constantly detected and the vegetable compartment fan 253 is rotationally controlled. It is possible to reduce temperature control variations due to temperature detection delay. Thereby, the temperature in the vegetable compartment 208 can be stabilized, and vegetables can be cooled and stored in a good state.

Moreover, since the drive of the vegetable compartment fan 253 at the time of the temperature equalization operation (S10) in the timer control operation (S5) is controlled to be performed for the time set in consideration of the outside air temperature in the step (S3), the door Even if the amount of heat from the outside air received from the side or the like changes, the cold air in the vegetable compartment can be circulated without excess or deficiency. As a result, the temperature in the vegetable compartment can be surely equalized, and the condensation that occurs due to the temperature difference in the vegetable compartment can be reliably and efficiently suppressed.

FIG. 72 shows the driving state of the vegetable room fan 253 and the temperature state of the vegetable room 208 when the temperature is controlled by the timer control operation. When the compressor 215 is operated and the refrigerator compartment damper 231 is closed, the vegetable compartment fan 253 rotates. As a result, the temperature in the vegetable compartment 208 is equalized to a substantially constant temperature without causing variations due to temperature detection delay or the like. Thereby, the dew condensation resulting from the temperature difference in the vegetable compartment 208 can be suppressed reliably. In addition, A in FIG. 72 shows the temperature equalizing operation time of the timer control operation.

On the other hand, if the refrigeration room damper 231 is open and the vegetable compartment 208 or the like is being cooled as a result of the operation state confirmation in step (S8), the vegetable compartment fan 253 is further cooled together with the above-described driving for temperature equalization. Is also performed, and the vegetable room 208 is cooled and soaked (S12). As described above, this cooling + temperature equalization operation is performed by actively sucking and taking in the cold air flowing in the return passage 238 by the rotation of the vegetable room fan 253, and together with the cold air originally circulated in the vegetable room. The inside of the vegetable compartment 208 is circulated and the inside of the vegetable compartment 208 is soaked to cool the inside of the vegetable compartment 208 while suppressing the occurrence of condensation.

FIG. 73 shows a driving state of the vegetable compartment fan 253 at the time of cooling and temperature equalization by the timer control operation. The cooling rotation and the temperature equalizing rotation are performed for a predetermined timer driving time set in advance (S13a). As a result, the inside of the vegetable compartment 208 is kept cooled within a predetermined temperature range, and the cold in the vegetable compartment is circulated as described above to prevent a large temperature difference from occurring in the vegetable compartment and suppress the occurrence of condensation. 73 in FIG. 73 indicates the cooling operation time in the timer control operation.

Here, the vegetable room fan 253 is driven in the timer control operation (S5) during the cooling + temperature equalization operation (S12) for the time set in consideration of the outside air temperature in step (S3). (S13a). Therefore, as in the soaking operation, it is possible to circulate the cool air in the vegetable room without excess or deficiency according to the amount of radiant heat from the outside air received from the door side, etc. It becomes possible. As a result, the temperature in the vegetable room can be surely equalized, and the occurrence of condensation due to the temperature difference can be reliably and efficiently prevented. Furthermore, the inside of the vegetable compartment 208 can be reliably maintained within a predetermined temperature range without being influenced by the outside air temperature. In addition, since the rotation of the vegetable compartment fan 253 is further controlled at a time determined by the timer control operation, the rotation of the vegetable compartment fan 253 may occur when the temperature in the vegetable compartment 208 is constantly detected. It is possible to reduce temperature control variations due to temperature detection delay. As described above, the temperature in the vegetable compartment 208 can be stabilized and the vegetables can be cooled and stored in a good state.

Next, the temperature control operation (S6) will be described.

When the temperature control operation is started (S6), first, the timer driving time for cooling among the timer driving times set in step (S3) is further corrected according to the temperature of the vegetable compartment 208 and set as the temperature driving time for cooling (S7). )

Thereafter, similarly to the timer control operation (S5), it is confirmed whether or not the cooling operation is being performed, that is, whether or not the compressor 215 and the cooling fan 219 are operating (S8).

In this case, since the determination of the vegetable room temperature in step (S4) is not less than the predetermined temperature range, the compressor 215 and the cooling fan 219 are naturally in operation. Then, whether or not the refrigerator compartment damper 231 is open, that is, whether or not the refrigerator compartment damper 231 is open and the cold air from the cooling compartment 216 is supplied to the refrigerator compartment 207 and the vegetable compartment 208 to cool each of these compartments. Confirm (S9). Also in this case, since the determination of the vegetable room temperature in the step (S4) is not less than the predetermined temperature range, the compressor 215 and the cooling fan 219 are in operation, and the cold room damper 231 is open and cooling. Therefore, the vegetable room fan 253 is driven, and the vegetable room 208 is cooled and soaked (S12).

Here, the driving of the vegetable room fan 253 in the cooling + temperature equalizing operation (S12) in the temperature control operation (S6) is performed based on the cooling temperature driving time corrected based on the vegetable room temperature in step (S7). When the cooling temperature drive time elapses (S13b), it stops (S14). That is, when the temperature rises due to outside air entering by opening and closing the vegetable room by taking in and out vegetables, the temperature driving time for cooling set based on the temperature in the vegetable room 208, the vegetable room fan 253 rotates. Then stop. Therefore, the vegetable room can be reliably and quickly cooled to a predetermined temperature, and the temperature in the vegetable room can be equalized to prevent condensation.

FIG. 74 shows a driving state of the vegetable room fan 253 by the temperature control operation (S6). In addition to the soaking time for soaking in the vegetable room 208, the cooling time for cooling the vegetable room is increased according to the temperature of the vegetable room 208, and is optimal according to the temperature of the vegetable room 208 The vegetable room fan 253 rotates for a long time (S13b). As a result, the amount of cold air taken into the vegetable compartment 208 is increased, the inside of the vegetable compartment 208 can be reliably and rapidly cooled, and the temperature inside the vegetable compartment 208 can be equalized to prevent the occurrence of condensation. . In this case, if the drive time of the vegetable room fan 253 is lengthened and the rotation speed is increased or only the rotation speed is increased, the amount of cold air taken into the vegetable room 208 can be increased and the vegetable room 208 can be opened in a shorter time. It can be cooled to a predetermined temperature. Note that C in FIG. 74 indicates the cooling operation time in the temperature control operation.

FIG. 75 is a timing chart showing an example of the cooling state of the vegetable compartment 208 when controlled by the control of the fifth embodiment. As shown in FIG. 75, when the temperature in the vegetable compartment 208 is within a predetermined temperature range that is a stable temperature state (X), the vegetable compartment fan 253 is operated for the timer control operation time determined in step (S3). Driven for cooling and soaking. That is, when the vegetable room temperature is stable, the vegetable room 208 is cooled only by the cooling operation 1 (timer control). For example, when the vegetable room 208 is released for taking out vegetables or the like and the temperature in the vegetable room 208 becomes high (Y), the cooling time for driving the vegetable room fan 253 becomes longer according to the temperature in the vegetable room. Thus, the vegetable compartment 208 is efficiently cooled. Here, the cooling operation time is extended by adding the cooling operation 2 (temperature control) to the cooling operation 1 (timer control). And the cooling time which drives the vegetable compartment fan 253 becomes short as the temperature in the vegetable compartment 208 falls. When the temperature of the vegetable compartment 208 reaches a predetermined temperature or less, the cooling operation 2 (temperature control) is terminated.

Then, when the temperature in the vegetable room 208 returns to a predetermined temperature range where the temperature is stable (X), the time returns to the timer control operation time determined in step (S3), and the vegetable room is cooled and temperature-equalized. That is, when the vegetable compartment 208 reaches an appropriate temperature, the operation returns to the cooling operation 1 (timer control) only.

(Embodiment 6)
FIG. 76 is a perspective view for explaining a cold air flow in the rear portion of the cooling chamber of the refrigerator in the sixth embodiment. FIG. 77 is a schematic cross-sectional view for explaining the cold air flow in the vegetable room of the refrigerator in the sixth embodiment.

The refrigerator 290 in the present embodiment is provided with a vegetable cold air inlet 245 and a vegetable cold air return port 246 separately from the vegetable cold air inlet / outlet 244 described in the fifth embodiment. That is, the vegetable cold air inlet 245 is provided in the vegetable chamber 208, and further, the vegetable cold air return port is located above the vegetable cold air inlet 245, for example, in the vicinity of the first passage 247a, the second passage 251a, and the vegetable compartment passage portion 250. 246 is provided.

Other configurations including control are the same as those of the fifth embodiment, and the same components are denoted by the same reference numerals and description thereof is omitted.

In the sixth embodiment, cold air in the cold return passage 238 flows from the vegetable cold air inlet 245, and the cold air in the vegetable room 208 flows out from the vegetable cold air return port 246 to the cold air return passage 238. Therefore, compared with the case where cold air enters and exits from one vegetable cold air inlet / outlet 244, the cold air enters and exits smoothly, and more cold air flows into the vegetable compartment 208. Thereby, cold air can be efficiently taken into the vegetable compartment and the inside of the vegetable compartment 208 can be cooled strongly. Therefore, for example, the vegetable compartment 208 is effective at the bottom of the refrigerator main body, and the bottom of the vegetable compartment 208 receives heat radiation from the outside air and is not easily cooled.

Other functions and effects are the same as those in the fifth embodiment except for the effect of suppressing the drying deterioration of vegetables by allowing the cold air to enter and exit from one of the vegetable cold air outlets 244, and the description thereof is omitted.

As described above, the refrigerator 290 of the fifth and sixth embodiments has a configuration in which the vegetable compartment 208 is disposed between the refrigerator compartment 207 and the freezer compartment 209, and the refrigerator compartment 207 and the freezer compartment 209 are connected to the vegetable compartment 208. Since there is no endothermic amount, the vegetable room temperature is stable except when the stored items are replaced into the vegetable room 208. Therefore, when the temperature of the vegetable compartment 208 is stable, that is, when the vegetable compartment temperature is within the predetermined temperature range, it is only necessary to perform a timer control operation for driving the vegetable compartment fan 253. On the other hand, when the vegetable room temperature rises rapidly due to replacement of stored items and the vegetable room temperature is higher than a predetermined temperature range, the vegetable room fan 253 is driven for a time set based on the vegetable room temperature. Perform temperature controlled operation. Thereby, optimal vegetable room temperature control is realizable.

The refrigerators 290 of the fifth and sixth embodiments can suppress the occurrence of dew condensation due to the temperature difference in the vegetable compartment 208 and at the same time can cool and keep the vegetable compartment at a low temperature, and always keep the vegetables in a good state in a cold state. Can do. Furthermore, the refrigerator 290 also has the following effects regarding vegetable room cooling.

First, the vegetable room fan 253 circulates cold air toward the outer periphery of the lower vegetable storage case 249a and the upper vegetable storage case 249b of the vegetable storage case 248. Thereby, it can suppress that the cold which circulates by the vegetable compartment fan 253 enters into the lower vegetable storage case 249a and the upper vegetable storage case 249b, and flows between vegetables. As a result, it is possible to prevent drying and deterioration of vegetables that tend to occur due to cold air flowing between the vegetables, and to cool and store the vegetables in a fresh and good state.

The refrigerator 290 includes a first vegetable cold air inlet 247 that also serves as an inlet for cold air that diffuses or circulates in the vegetable compartment 208 above the vegetable storage case 248 including the lower vegetable storage case 249a and the upper vegetable storage case 249b. And the 2nd vegetable cold air suction inlet 251 is provided. Therefore, the cold air circulating in the vegetable compartment 208 does not enter the vegetable storage case 248 including the lower vegetable storage case 249a and the upper vegetable storage case 249b, and the first vegetable cold air suction port 247 and the second vegetable cold air are left as they are. It flows to the suction port 251. As a result, it is possible to more reliably prevent the vegetables from being dried and to cool and store the vegetables in a fresh and good state. The effect mentioned above can further be heightened by making the upper surface opening edge of the upper stage vegetable storage case 249b adjoin to the partition plate 205 used as a vegetable room ceiling surface. In addition, the effect mentioned above can be heightened more effectively by providing the cover which covers upper surface opening.

In addition, the vegetable compartment fan 253 is located below the upper opening edge of the vegetable storage case 248 composed of the lower vegetable storage case 249a and the upper vegetable storage case 249b. As a result, the cool air blown from the vegetable compartment fan 253 circulates in the vegetable storage case 248, particularly in the vicinity of the bottom surface and lower outer periphery of the lower vegetable storage case 249a. Therefore, the cold air circulated by the vegetable compartment fan 253 is more difficult to enter the vegetable storage case 248. As a result, it is possible to reliably prevent deterioration of the vegetables caused by the cold air entering and circulating in the vegetable storage case 248, and the vegetables can be stored in a cooler and better state.

Further, the vegetable storage case 248 is provided with a storage unit 259 such as a plastic bottle for partitioning the inside of the lower vegetable storage case 249a to the left and right and storing plastic bottles, packs and the like on one side. And the vegetable room fan 253 is provided in the back part of the vegetable room by the side of storage part 259, such as a plastic bottle, It is comprised so that the cool air in a vegetable room may be circulated toward the storage part 259, such as a plastic bottle. Therefore, the cold air from the vegetable room fan 253 circulates intensively around the PET bottle storage unit 259, and efficiently cools the PET bottles and packs stored in the PET bottle storage unit 259. be able to. In particular, drinking water such as PET bottles and packs stored in the PET bottle storage unit 259 has a larger heat capacity than vegetables and is difficult to cool. Therefore, the increase in the temperature of the vegetable room due to the storage of PET bottles and the like can be efficiently suppressed, and the occurrence of condensation can be effectively prevented, and at the same time, the vegetables can be stored well.

In addition to the vegetable room fan 253, a first vegetable cold air inlet 247 is provided in the vegetable storage case 248 on the side of the storage part 259 such as a plastic bottle. Thereby, the cold air from the vegetable compartment fan 253 can be circulated more efficiently and intensively to the storage part 259 such as a plastic bottle.

Also, a second vegetable cold air suction port 251 that is another suction port for circulating the cold air in the vegetable chamber 208 is provided at the upper part of the vegetable room substantially diagonally with the vegetable room fan 253. As a result, a part of the cool air blown from the vegetable compartment fan 253 circulates through the bottom of the plastic bottle storage 259 of the vegetable storage case 248 forward and obliquely longitudinally through the vegetable compartment 208. , Flows to the second vegetable cold air inlet 251 at the top of the vegetable compartment. Accordingly, it is possible to circulate cold air over a wide range around the vegetable compartment case while preventing cold air from entering the vegetable compartment case including the lower vegetable storage case 249a and the upper vegetable storage case 249b. Therefore, vegetables, plastic bottles, etc. can be cooled effectively.

Further, in the refrigerator 290, a communication path 239 is formed between the refrigerated cold air passage 232 and the refrigerated cold air return path 233. When the vegetable room fan 253 is rotated, the low-temperature and fresh cold air in the refrigerated cold air passage 232 is mixed in the refrigerated cold air return passage 233 by the fan suction force, and the vegetable room is fed from the vegetable cold air inlet / outlet 244 via the return passage 238. 208 is supplied. That is, the vegetable room 208 is not only cooled by the return cold air having a relatively high temperature after the cold room cooling from the cold room 207, but also by the rotation of the vegetable room fan 253, fresh cold air at a low temperature is described above. It cools with the cold air made low temperature by mixing in the cold air after cooling in the cold room. Accordingly, the vegetable compartment 208 can be effectively cooled, and the vegetable compartment 208 can be reliably cooled even when the cooling load condition is bad, for example, when many vegetables or plastic bottles are temporarily stored. can do. In addition, the amount of low-temperature fresh cold air taken in via the communication path 239 can be increased by increasing the rotation speed of the vegetable compartment fan 253. Therefore, even when a large amount of room temperature PET bottles having a large heat capacity are stored in the summer, it can be reliably cooled. Moreover, since the vegetable compartment 208 can be reliably cooled, the occurrence of condensation due to cold radiation from the cooling compartment 216 can be efficiently suppressed, and the vegetables can be stored in a cool state in a good state.

In

Embodiments

5 and 6, the soaking operation and the cooling operation of the vegetable room fan 253 are separately performed and described, but the soaking operation and the cooling operation are performed for one continuous time. You may make it carry out.

Further, the temperature correction of the vegetable room fan driving time performed when the temperature of the vegetable room 208 is equal to or higher than the predetermined temperature has been described as being performed only for the cooling driving time, but the temperature equalizing driving time is also performed. It may be selected as appropriate.

Further, at least one of cooling and cooling stop of the vegetable compartment 208, that is, at least one of supply and stop of cold air to the vegetable compartment 208 has been described as being performed using the refrigerator compartment damper 231. It is not limited. For example, a vegetable room damper dedicated to the vegetable room 208 may be provided to perform at least one of supply and stop. In this case, step (S9) may be set as “open vegetable room damper?”.

In addition, the “middle vegetable type” refrigerator in which the vegetable compartment 208 is provided between the refrigerator compartment 207 and the freezer compartment 209 has been described as an example. What is necessary is just to have the cooling chamber 216 installed over the back surface of the chamber 208 and the freezing chamber 209.

The control method described above can be applied to the first, second, third, fourth and sixth embodiments.

As described above, the present invention can suppress the occurrence of dew condensation in the vegetable room and can cool and store the vegetables in a good state. Therefore, the present invention can be widely applied to commercial refrigerators as well as home use, and is useful.

1,101,201 Refrigerator body 2,102,202 Outer box 3,103,203 Inner box 4,104,204 Foam insulation 5,6,105,106,205,206 Partition plate 7,107,207

Cold room

8 , 108, 208

Vegetable room

9, 109, 209

Freezer room

10, 11, 12, 110, 111, 112, 210, 211, 212

Door

14, 114, 214

Machine room

15, 115, 215

Compressor

16, 116, 216

Cooling chamber

17, 117, 217 Back

surface partition wall

18, 118, 218

Cooler

19, 119, 219 Cooling

fan

20, 120

Opening

21, 121

Protruding piece

22, 122 Upward projecting

piece

23, 123

First heater

24, 124 Insulation barrier 25,125 Cold air return passage opening 26,126 Passage opening 27,127

Tank installation

28, 128, 228

Defrost heater

29, 129, 229

Drain pan

30, 130, 230 Cooling chamber cool

air conveyance path

31, 131, 231

Refrigeration chamber damper

32, 132, 232 Refrigeration

cold air passage

32a, 132a, 232a Partial chamber

cold air Passage

33, 133, 233 Refrigerated cold air return passage (cold air passage)
34, 134, 234

Freezer compartment damper

35, 135, 235 Refrigerated

cold air inlet

36, 136, 236 Refrigerated cold

air return port

37, 137, 237

Outward passage

38, 138, 238

Return passage

39, 139, 239

Communication passage

40, 140, 240 Cold

air return duct

41, 141, 241

Back wall

42, 142, 242 Refrigerated

cold air inlet

43, 143, 243 Refrigerated

cold air outlet

44, 244 Vegetable

cold air outlet

45, 144, 245 Vegetable

cold air inlet

46, 146, 246 Vegetable cold

air Return port

47, 147, 247 First vegetable

cold air inlet

47a, 147a, 247a

First passage

48, 148, 248

Vegetable storage case

49a, 149a, 249a Lower

vegetable storage case

49b, 149b, 249b Upper vegetable storage case 50 , 150,250 Vegetable

room Road portion

51, 151, 251 Second vegetable

cold air inlet

51a, 151a, 251a

Second passage

53, 153, 253

Vegetable room fan

54, 154, 254

Air outlet

55, 155

Inclined surface

56, 156 Second heater 57,157,257 Connector connection part 58,158,258 Case partition plate 59,159,259 Non-vegetable storage part (storage part such as plastic bottle)
60, 160, 260

Storage shelf

61, 161, 261

Partial chamber

62, 162, 262

Operation unit

63, 163, 263

Freezer chamber case

64, 164, 264

Ice making device

65, 165, 265 Cold room

temperature detection unit

66, 166 266 Vegetable room temperature detection unit 67,167,267 Freezer room temperature detection unit 68,168,269 Control unit 268 Outside temperature detection unit 90,190,290 Refrigerator

Claims

A refrigerator room, a vegetable room, a freezer room,
A cooling chamber provided on the back of the freezer compartment and the vegetable compartment, provided with a cooler for generating cold air;
A cooling fan that is disposed in the cooling chamber and supplies and circulates cold air generated by the cooler to the refrigeration chamber, the vegetable chamber, and the freezing chamber;
A vegetable room fan disposed in the vegetable room;
Refrigerator equipped with.
The refrigerator according to claim 1, wherein the vegetable room includes one vegetable cold air inlet / outlet communicating with a cold air passage through which the cold air generated in the cooling chamber circulates.
The refrigerator according to claim 2, wherein the vegetable room fan is disposed in an offset state at the vegetable cold air inlet / outlet.
The vegetable room has a vegetable cold air inlet and a vegetable cold air return port,
The refrigerator according to claim 1, wherein the vegetable cold air inlet and the vegetable cold air return port communicate with a cold air passage through which the cold air generated in the cooling chamber circulates.
The vegetable compartment is disposed between the refrigeration compartment and the freezer compartment in the vertical direction,
2. The refrigerator according to claim 1, wherein the vegetable room fan is disposed in the vicinity of a lower back of the vegetable room that receives cold radiation from the cooling room and the freezing room.
The vegetable compartment has a vegetable storage case,
The refrigerator according to claim 1, wherein the vegetable compartment fan is provided to allow at least one of diffusion and circulation of cold air to an outer periphery of the vegetable storage case.
The refrigerator according to claim 6, wherein the vegetable compartment fan is disposed below an upper opening edge of the vegetable storage case.
A vegetable room passage part is further provided in the vegetable room back part facing the cooling room,
The vegetable compartment passage portion communicates with the upper space of the vegetable compartment,
The refrigerator according to claim 2, wherein the vegetable room fan is disposed at a lower part of the vegetable room passage portion.
A part of the vegetable storage case has a non-vegetable storage part,
The refrigerator according to claim 6, wherein the vegetable compartment fan causes at least one of diffusion and circulation of cold air in the vegetable compartment toward the non-vegetable storage unit.
The vegetable room is provided with a first vegetable cold air suction port communicating with the suction side of the vegetable room fan at the upper part on the non-vegetable storage part side,
The refrigerator according to claim 9, wherein the first vegetable cold air inlet and the vegetable compartment fan are provided in a portion of the vegetable storage case on the non-vegetable storage portion side.
The inside of the vegetable storage case is partitioned into left and right, and the non-vegetable storage portion is disposed on either side,
The vegetable room fan is disposed below the rear part of the non-vegetable storage unit,
11. The refrigerator according to claim 10, wherein a second vegetable cold air suction port communicating with the suction side of the vegetable room fan is disposed at the upper part of the vegetable room substantially diagonally to the vegetable fan.
Refrigeration cold air going passage portion from the cooling chamber to the refrigeration chamber, provided in the substantial center portion of the back of the refrigerator body,
A refrigerated cold air return passage part from the refrigerated room to the cooling room is provided on the side of the refrigerated cold air outgoing passage part on the back of the refrigerator body,
The refrigerator according to claim 8, wherein the vegetable compartment passage portion is disposed vertically in front of the return passage portion of the refrigerated cold air.
The vegetable cold air outlet is opened in the refrigerated cold air return passage portion,
The refrigerator according to claim 12, wherein a part of the cold air circulated from the cooling chamber is bypassed, mixed with the return cold air from the refrigerator compartment, and supplied to the vegetable compartment.
The refrigerator according to claim 1, wherein the vegetable room fan is controlled based on a detected temperature of a vegetable room temperature detection unit disposed in the vegetable room.
The back of the vegetable room further comprises a cold air return passage through which the cold air is circulated by the cooling fan,
A vegetable cold air inlet and a vegetable cold air return port communicating with the cold air return passage are respectively provided between the cold air return passage and the vegetable compartment on the vegetable compartment fan suction side and exhaust side of the vegetable compartment. The refrigerator according to claim 1.
The vegetable room fan and the vegetable cold air inlet are arranged at the lower back of the vegetable room,
The refrigerator according to claim 15, wherein the vegetable cold air inlet is provided in an upper part of the vegetable compartment.
The vegetable room fan and the vegetable cold air inlet are arranged on the ceiling of the vegetable room,
In the upper part of the vegetable compartment, the outlet of the vegetable compartment fan is opened,
The refrigerator according to claim 15, wherein the vegetable cold air return port is provided at a lower portion of the vegetable compartment.
The vegetable compartment is located at the bottom of the refrigerator compartment,
18. The vegetable room fan according to claim 17, wherein the vegetable room fan is disposed obliquely in a partition plate that forms a ceiling of the vegetable room by partitioning the vegetable room and the refrigerator room. refrigerator.
A controller for controlling the vegetable compartment fan;
The controller is
If the temperature of the vegetable compartment is within a predetermined temperature range, perform a timer control operation to drive the vegetable compartment fan for a predetermined time,
The refrigerator according to claim 1, wherein when the temperature of the vegetable room is higher than a predetermined temperature range, a temperature control operation is performed in which the vegetable room fan is driven for a set time based on the vegetable room temperature.
The said control part is a refrigerator of Claim 19 which sets the drive time of the said vegetable compartment fan at the time of the said timer control driving | operation based on external temperature.
The control unit corrects the drive time of the vegetable compartment fan during the temperature control operation based on the temperature in the vegetable compartment and makes the drive time longer than the drive time set in the timer control operation. The refrigerator described.
The refrigerator according to claim 19, wherein the controller forcibly causes the vegetable room fan to stop when the temperature of the vegetable room is low outside a predetermined temperature range.
The refrigerator according to claim 19, wherein the controller forcibly causes the vegetable compartment fan to stop when the compressor for generating cold air is stopped.
When the operation stop of the compressor for generating cold air is within a certain time, the control unit forcibly stops the vegetable compartment fan,
The refrigerator according to claim 19, wherein the vegetable compartment fan is driven based on the timer control operation when the compressor is stopped for a predetermined time or longer.
A refrigerator room, a vegetable room, a freezer room,
A cooling chamber provided with a cooler for generating cold air disposed on the back of the freezing chamber and the vegetable chamber;
A cooling fan that is disposed in the cooling chamber and supplies and circulates cold air generated by the cooler to the refrigeration chamber, the vegetable chamber, and the freezing chamber,
The said vegetable compartment is a refrigerator provided with one vegetable cold air inlet / outlet connected with the cold air | gas channel | path through which the cold air produced | generated in the said cooling chamber circulates.
The refrigerator according to claim 25, wherein the vegetable compartment is disposed between the refrigerator compartment and the freezer compartment.