JP2006017372A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator having a vegetable chamber capable of being cooled to lower temperatures by cooling a cooling unit for the vegetable chamber by the returned cold air from a freezing chamber, and equalizing the frost formation on the cooling unit caused by the returned cold air of the refrigerating chamber. <P>SOLUTION: The cold air cooled by a main cooling unit is circulated to the refrigerating chamber and the freezing chamber by a blower through a route not flowing into the vegetable chamber, the vegetable chamber is cooled by the cooling unit for the vegetable chamber cooled by the returned cold air of the freezing chamber, and the returned cold air of the refrigerating chamber is merged with the returned cold air of the freezing chamber at the upstream of the main cooling unit. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a refrigerator in which a refrigerator compartment, a freezer compartment, and a vegetable compartment are formed. In particular, cold air cooled by a cooler is circulated by a blower to the refrigerator compartment and the freezer compartment, and this cold air circulation is not performed to the vegetable compartment. The present invention relates to a cooling refrigerator.

There is a refrigerator in which a refrigerator room, a freezer room, and a vegetable room are formed, and a cooler is disposed on the back surface of the freezer room, and cool air cooled by the cooler is circulated to the refrigerator room and the freezer room by a blower. This refrigerator has a refrigerator compartment, a freezer compartment, and a vegetable compartment from the top, and the cold air cooled by the cooler flows into the refrigerator compartment and the freezer compartment by a blower, and the cold air in the freezer compartment returns to the cooler as it is. The cold air in the refrigerator compartment is circulated back to the cooler after flowing into the vegetable compartment through the duct on the back side of the freezer compartment. (For example, refer to Patent Document 1).

Moreover, as another type of refrigerator, a refrigerator room, a vegetable room, and a freezer room are arranged from the top, and a cooler and a blower are arranged on the back of the refrigerator room and the freezer room, respectively, and cooled by each cooler. Cold air is circulated to the refrigerator compartment and freezer compartment by each blower, but the cold air does not flow to the vegetable compartment. And the refrigerator compartment and the vegetable compartment are partitioned by the cooling plate, and this cooling plate is cooled by the cool air cooled by the cooler before flowing into the refrigerator compartment, and the vegetable compartment is cooled by this cooling plate. Is. (For example, refer to Patent Document 2).
Japanese Patent Laid-Open No. 08-178509 JP 2002-147915 A

Since the method of Patent Document 1 is a method in which the return cold air from the refrigerator compartment flows into the vegetable room, if the vegetable container in the vegetable room is in the form of an upper surface opening, drying of the vegetables in the container is inevitable. Moreover, in the system of patent document 2, since the cool air cooled with the cooler does not flow into the vegetable room, even if the vegetable container in the vegetable room is in the form of the top opening, the container as in patent document 1 Drying of the vegetables does not occur, but a refrigerator for a refrigerator and a fan, a refrigerator for a freezer and a fan are necessary,
There is a problem that the number of coolers and blowers increases.

Moreover, in the system of patent document 2, it is necessary to lower | hang the cool air temperature cooled with the cooler for refrigerator compartments in these days which maintain the temperature of a vegetable compartment at a sufficiently low temperature, Therefore, it is cooling for refrigerator compartments. New designs and tests are required, such as increasing the size of the vessel.

In the refrigerator in which the refrigerator room, the freezer room, and the vegetable room are formed, the cold air cooled by the cooler is circulated to the refrigerator room and the freezer room by a blower through a path that does not flow into the vegetable room. The room is cooled by a vegetable room cooler that is cooled by the return cold air of the freezer room, so that the vegetables in the vegetable container opened in the upper surface stored in the vegetable room can be cooled to a lower temperature. A refrigerator capable of suppressing drying is provided.

Further, according to the present invention, in the refrigerator of such a system, frost formation occurs in the cooler when the return cold air in the refrigerator compartment containing a lot of moisture returns to the cooler, but this frost formation on the cooler occurs. A cold air return duct configuration that can be made as uniform as possible is provided.

1st invention forms a refrigerator compartment, a freezer compartment, and a vegetable compartment, the vegetable compartment is arrange | positioned adjacently under the freezer compartment, the main cooler is arrange | positioned in the back part of the said freezer compartment, The said main cooling The cold air cooled by the cooler is circulated by the blower to the refrigerator compartment and the freezer compartment through a path that does not flow into the vegetable compartment, and the vegetable compartment is cooled by the return cold air of the freezer compartment to the main cooler. It is cooled by a room cooler, and has a cold air duct structure in which the return cold air in the refrigerator compartment merges with the return cold air in the freezer compartment.

According to a second aspect of the present invention, a refrigeration room, a freezing room, and a vegetable room are formed, the vegetable room is disposed adjacent to the lower side of the freezing room, a main cooler is disposed on a back surface of the freezing room, and the main cooling is performed. The cool air cooled by the cooler is circulated to the refrigerating room and the freezer compartment by a blower through a path that does not flow into the vegetable compartment, and a cool air return passage returning from the freezer compartment to the main cooler is provided in the freezer compartment and the vegetable compartment. A cooler for a vegetable room is formed in a heat insulating partition wall between the chamber and one side is arranged in a heat exchange relationship with the cold air in the cold air return passage and the other side is exposed to the vegetable room; A cold air duct structure is formed in which the return cold air returning to the cooler merges with the cold air in the cold air return passage.

According to a third aspect of the present invention, a refrigerator compartment, a freezer compartment, and a vegetable compartment are formed from above, a main cooler is disposed on the back of the freezer compartment, and the cold air cooled by the main cooler does not flow into the vegetable compartment A cold air return passage is formed in the heat insulating partition wall between the freezer compartment and the vegetable compartment, which is circulated by the blower to the refrigerator compartment and the freezer compartment by a route, and returns from the freezer compartment to the main cooler, There is provided a vegetable room cooler, one side of which is arranged in a heat exchange relationship with the cold air in the cold air return passage and the other side is exposed to the vegetable room, and the return cold air returning from the refrigeration room to the main cooler is used for the vegetable room A cool air duct configuration is provided in which the cool air in the cool air return passage is merged from both sides of the cool air return passage on the downstream side of the cooler.

According to a fourth aspect of the present invention, a refrigerator compartment, a freezer compartment, and a vegetable compartment are formed from above, and a main cooler is disposed at the back of the freezer compartment, and the cold air cooled by the main cooler does not flow into the vegetable compartment A cold air return passage is formed in the heat insulating partition wall between the freezer compartment and the vegetable compartment, which is circulated by the blower to the refrigerator compartment and the freezer compartment by a route, and returns from the freezer compartment to the main cooler, There is provided a vegetable room cooler, one side of which is arranged in a heat exchange relationship with the cold air in the cold air return passage and the other side is exposed to the vegetable room, and the return cold air returning from the refrigeration room to the main cooler is used for the vegetable room A cool air duct configuration is provided in which the cool air in the cool air return passage is merged from the upstream side of the cooler.

In the first invention, the main cooler and the air blower may be a pair, and the cold air cooled by the main cooler is circulated by the air blower to the refrigerator compartment and the freezer compartment, respectively. By cooling with a cooler for the vegetable room cooled by the return cold air in the freezer room, the vegetables in the vegetable container opened in the upper surface stored in the vegetable room can be cooled to a predetermined low temperature and the vegetables are dried. Can be suppressed. Further, the return cold air in the refrigerator compartment containing a large amount of moisture is merged with the return cold air to the freezer compartment and returned to the main cooler, so that non-uniform frost formation on the main cooler can be reduced.

In the second invention, a cold air return passage returning from the freezer compartment to the main cooler is formed in the heat insulating partition wall between the freezer compartment and the vegetable compartment, and one side is arranged in a heat exchange relationship with the cold air in the cold air return passage. In addition to the effect of the first invention, a cooler for the vegetable room with the other side exposed in the vegetable room is provided, and the return cold air returning from the refrigerator compartment to the main cooler merges with the cool air in the cold air return passage. Thus, the return cold air from the freezer compartment to the main cooler and the return cool air from the refrigerating compartment to the main cooler can be easily merged.

In the third invention, in addition to the effect of the second invention, the return cold air returning from the refrigerator compartment to the main cooler merges with the return cold air of the freezer compartment downstream of the vegetable compartment cooler. Since there is no frost formation on the cooler for the vegetable room due to the return cold air, and the cooling effect of the cooler for the vegetable room is excellent, it is suitable for a method for cooling the vegetable room to a lower temperature. And since the return cold air from the refrigerator compartment is merged from both sides of the return cold air in the freezer compartment, it is possible to reduce non-uniform frost formation on the main cooler compared to when returning to the cooler from one side. It will be suitable.

In the fourth invention, in addition to the effect of the second invention, the cooling temperature of the cooler for the vegetable room will rise as compared with the case of only the return cold air in the freezer room, and the cooling system that does not cool the vegetable room to a very low temperature It can also be applied to a cooling system that does not overcool the vegetable room. Also, even if frost adheres to the vegetable room cooler, the frost is sublimated by the cooling operation and transferred to the main cooler, so that the frost can be removed by the defrosting operation of the main cooler. .

The present invention forms a refrigerator compartment, a freezer compartment, a vegetable compartment, the vegetable compartment is disposed adjacent to the lower side of the freezer compartment, a main cooler is disposed on the back of the freezer compartment, The cooled cold air is circulated to the refrigerator compartment and the freezer compartment by a blower through a path that does not flow into the vegetable compartment, and the vegetable compartment is cooled by the return cold air of the freezer compartment to the main cooler. The cool air is cooled by a cooler, and the cool air returning from the refrigerating chamber has a cool air duct configuration that merges with the cool air returning from the freezer chamber on the upstream side of the main cooler. Embodiments of the present invention will be described below.

Next, an embodiment of the present invention will be described. Each figure shows an embodiment of the present invention,
1 is a longitudinal side view of a refrigerator according to the present invention, FIG. 2 is an upper front view of the refrigerator main body according to the present invention, FIG. 3 is a cross-sectional view taken along the line AA in FIG. 5 is a cross-sectional view taken along the line CC of FIG.

The refrigerator of this invention is demonstrated based on figures. Here, reference numeral 1 denotes a refrigerator according to the present invention, in which the interior of the main body 2 having a full opening is partitioned to form a plurality of storage chambers, and the front surfaces of these storage chambers can be opened and closed by doors. The refrigerator body 2 has a heat insulating structure in which a foam heat insulating material 2C is filled between an outer box (outer wall plate) 2A and an inner box (inner wall plate) 2B. In the refrigerator main body 2, a refrigerator compartment 3, a freezer compartment 4, and a vegetable compartment 5 are partitioned and formed by partition walls 6 </ b> A and 6 </ b> B from above, and the refrigerator compartment 3 and a partition plate above the bottom of the refrigerator compartment 3 are formed. A specific low temperature chamber 7 partitioned by (partition wall) 8 is provided. The front surface of the specific low temperature chamber 7 can be opened and closed by a door 9 whose upper end is axially supported by a partition plate (partition wall) 8.

The front opening of the refrigerating room 3 is closed by a revolving refrigerating room door 10 that is opened and closed by being pivoted laterally by a hinge device on one side of the refrigerator body 2. The front opening of the freezer compartment 4 is closed by a rotating freezer compartment door 11 that is supported on one side of the refrigerator body 2 so as to be pivotable in the lateral direction by a hinge device. The front opening of the vegetable compartment 5 is a vegetable container 14 with an upper opening that is supported so that it can be pulled out in the front-rear direction by a drawer 13 that is a combination of left and right rails and rollers provided in the vegetable compartment 4.
At the same time, it is closed by a pull-out door 11 that is pulled forward. The freezer compartment 4 is also closed by a pull-out door 11 that is drawn forward together with a freezer compartment container that is supported so as to be drawable in the front-rear direction by left and right drawer devices provided in the freezer compartment 4, as in the vegetable compartment 5. It may be configured as follows.

15 is an electric compressor that compresses the refrigerant of the refrigeration system, and 16 is a refrigerant condenser of the refrigeration system. 17 is an evaporating dish for evaporating the defrost water described later by the heat of the condenser 16,
It can be placed on the condenser 16 and pulled out from the front lower part of the refrigerator body 2. Electric compressor 1
5, the condenser 16 and the evaporating dish 17 are installed in a machine room 18 provided in the lower part of the refrigerator body 2. Reference numeral 19 denotes a refrigerant evaporator (cooler) of the refrigeration system, which is installed in a cooling chamber 27 formed on the back surface of the freezing chamber 4. Reference numeral 20 denotes cold air cooled by an evaporator (cooler) 19 in the refrigerator compartment 3.
And a fan that circulates to the freezer compartment 4. The defrost water of the evaporator (cooler) 19 is led to the evaporation tray 17 through the drain pipe and evaporated there.

Reference numeral 21 denotes a cold air duct that guides the cold air cooled by the evaporator (cooler) 19 from the blower 20 to the refrigerator compartment 3, and is arranged vertically along the back wall 22 of the refrigerator compartment 3. Wall 22
From the cold air outlet 23 formed in the above, the refrigeration chamber 3 and the specific low temperature chamber 7 are supplied as indicated by arrows.
An electric damper device (cold air amount adjusting device) 24 that opens and closes the cold air duct 21 by a sensor detecting the temperature of the refrigerator compartment 3 is attached to the lower part of the cold air duct 21. The temperature of the refrigerator compartment 3 is controlled to a predetermined temperature by the damper device (cold air amount adjusting device) 24.

In the freezer compartment 4, the cold air cooled by the evaporator (cooler) 19 is supplied from the blower 20 through the cold air outlet 25 formed on the back wall of the freezer compartment 4 to the freezer compartment 4 as indicated by an arrow. The temperature of the freezer compartment 4 is controlled to a predetermined temperature by the sensor sensing the temperature of the freezer compartment 4 or the temperature of the evaporator (cooler) 19, and the operation of the electric compressor 15 is controlled ON / OFF by the controller. The

The return cold air that has cooled the refrigerator compartment 3 passes through the return cold air passage 26 formed in the heat insulating material of the partition wall 6A between the refrigerator compartment 3 and the freezer compartment 4, and returns to the lower periphery of the cooling chamber 27 as described later. To flow. The return cold air passage 26 is provided with a suction port 26 </ b> C formed by opening in the width direction of the refrigerator compartment 3 at a position close to the front side of the partition wall 6 </ b> A. The return cold air passage 26 is connected to the suction port 2.
6C portion is wide in the lateral width direction and is separated into left and right ducts 26A, 26B at the rear portion thereof, and the left and right ducts 26A, 26B extend downward in the heat insulating material 2C on the left and right sides of the cooling chamber 27, As described later, the return cold air that has cooled the refrigerator compartment 3 is merged with the return cold air that has cooled the freezer compartment 4 and returned to the lower portion of the cooling chamber 27.

The return cold air that has cooled the freezer compartment 4 flows through the cold air return passage 28 formed in the partition wall 6B between the freezer compartment 4 and the vegetable compartment 5 so as to return to the lower portion of the cooler chamber 27 as will be described later. The cold air return passage 28 is between the upper plate 6B1 of the partition wall 6B and the heat insulating material 6B2 below it,
It is a duct structure wide in the width direction formed by denting the heat insulating material 6B2. For this reason, freezer compartment 4
Is partitioned by an upper plate 6B1 made of synthetic resin, and the vegetable compartment 5 is thermally shielded by a heat insulating material 6B2. The cold air return passage 28 forms a suction port 28A at a position close to the front side of the partition wall 6B, and the cold air returns to the lower part of the cooling chamber 27 with a wide duct configuration from the suction port 28A portion toward the rear portion thereof. Communicating to do.

The left and right ducts 26A, 26B through which the return air of the refrigerating chamber 3 flows are opened at the lower ends of both side walls of the cool air return passage 28, whereby the return cold air of the refrigerating chamber 3 returns from the suction port 26C. It flows into the cold air passage 26, passes through the left and right ducts 26 </ b> A and 26 </ b> B, merges with the return cold air that has cooled the freezer compartment 4 in the cold air return passage 28 from both side walls of the cold air return passage 28, and returns to the lower portion of the cooling chamber 27. To flow.

Thus, the cool air cooled by the evaporator (cooler) 19 is configured to circulate to the refrigerating room 3 and the freezing room 4 by the blower 20 through a path that does not flow into the vegetable room 5. Also,
The return cold air in the refrigerator compartment 3 merges with the return cold air that has cooled the freezer compartment 4 before returning to the cooling chamber 27, so the return cold air in the refrigerator compartment 3 returns directly to the cooling chamber 27 from the left and right ducts 26 </ b> A and 26 </ b> B. Compared to the case, frost formation generated around the lower portion of the evaporator (cooler) 19 can be dispersed. For this reason, partial clogging of the evaporator (cooler) 19 due to frost formation is reduced,
The cooling effect by the evaporator (cooler) 19 can be improved. Also, evaporator (cooler)
When many frosts are concentrated on a part of 19 and the frost removal time is increased, this can also be improved.

Since the cool air cooled by the evaporator (cooler) 19 is circulated by the blower 20 to the refrigerator compartment 3 and the freezer compartment 4 through a path that does not flow into the vegetable compartment 5, the vegetable compartment 5 is specially cooled. It is necessary to cool with a cooler. For this reason, the vegetable room 5 is cooled by the vegetable room cooler 30 that is arranged on one side in a heat exchange relationship with the cold air in the cold air return passage 28 and the other side is exposed to the ceiling portion of the vegetable room 5. In addition, the intermediate part of the cooler 30 for vegetable rooms is embed | buried under the heat insulating material 6B2 of the partition wall 6B so that the cold air return channel | path 28 and the vegetable room 5 may maintain heat insulation relation.

The vegetable room cooler 30 has a substrate portion 30A in which the portion exposed to the ceiling of the vegetable room 5 is a flat plate or the like.
The portion 30B, which is arranged in a heat exchange relationship with the cold air in the cold air return passage 28, is composed of a plurality of fins extending in the front-rear direction in parallel from the substrate portion 30A in order to improve heat conduction. The vegetable room cooler 30 is made of aluminum. The evaporator (cooler) 19 is referred to as a main cooler in order to distinguish it from the vegetable room cooler 30.

The return cool air returning from the refrigerator compartment 3 to the main cooler chamber 27 is only one of the ducts 26A and 26B, and the cool air that joins the cool air in the cool air return passage 28 from the side wall of the cool air return passage 28 through this duct. A duct configuration may also be used. In this case, a duct in which the return cold air from the refrigerator compartment 3 joins and mixes with the return cold air of the freezer compartment 4 flowing through the cold air return passage 28 so that frost formation generated around the lower portion of the main cooler 19 can be dispersed. What is necessary is just to consider a structure.

The return cold air returning from the refrigerating room 3 to the main cooler room 27 has a cold air duct configuration that joins the cold air in the cold air return path 28 from both sides of the cold air return path 28 on the upstream side of the vegetable room cooler 30. Can do. In this case, frosting occurs on the fins 30 </ b> B of the vegetable room cooler 30, but the frost is sublimated by the cooling operation of the main cooler 19 and transferred to the main cooler 19. For this reason, if the defrost operation of the main cooler 19 is performed, the cooling operation can be performed satisfactorily.

In this way, frost formation generated around the lower portion of the main cooler 19 is further dispersed as compared with the configuration in which the cold air in the cold air return passage 28 is merged from one of the ducts 26A and 26B through the side wall of the cold air return passage 28. In order to make it possible to achieve this, it is sufficient to adopt a configuration in which the return cold air of the freezer compartment 4 in the cold air return passage 28 is merged from both the ducts 26A and 26B as described above. Also in this case, frosting occurs on the fins 30 </ b> B of the vegetable room cooler 30, but the frost is sublimated by the cooling operation of the main cooler 19 and transferred to the main cooler 19. For this reason, if the defrost operation of the main cooler 19 is performed, the cooling operation can be performed satisfactorily.

Further, in order to prevent the fins 30B of the vegetable room cooler 30 from frosting due to the return cold air from the refrigerating room 3, as shown in FIG. 1 or FIG. The return cold air returning to 27 is merged with the return cold air from the freezer compartment 4 in the cold air return passage 28 from one or both of the ducts 26 </ b> A and 26 </ b> B downstream of the vegetable room cooler 30. A cold air duct configuration may be used. Then, if the return cold air from the freezer compartment 4 and the return cold air from the refrigerating compartment 3 are merged by a position and a duct shape that sufficiently mix before flowing into the cooler compartment 27, a preferable state is obtained. It is done.

As described above, on the downstream side of the vegetable room cooler 30, in the case of a cold air duct configuration in which the return cold air from the refrigerator compartment 3 merges with the return cold air from the freezer compartment 4 of the cold air return passage 28, the vegetable room use Since the cooler 30 is cooled by the return cold air from the freezer compartment 4 without touching the return cold air from the refrigerating room 3, the substrate portion 30A of the vegetable room cooler 30 exposed to the ceiling portion of the vegetable room 5 has a low temperature. Since it is cooled, it is suitable for cooling the vegetable compartment 5 to a low temperature of about 2 to 3 ° C.

Further, as described above, in the case of the cold air duct configuration in which the return cold air from the refrigerating chamber 3 merges with the return cold air from the freezer compartment 4 of the cold air return passage 28 on the upstream side of the vegetable room cooler 30, Since the cool air in the state where the return cold air from the chamber 4 and the return cold air from the refrigerator compartment 3 merge flows into the vegetable room cooler 30, the cooling temperature of the vegetable room cooler 30 depends only on the return cold air of the freezer room 3. The temperature of the substrate portion 30A of the vegetable room cooler 30 exposed at the ceiling portion of the vegetable room 5 is also increased, and the vegetable room 5 is compared with the case where only the return cold air from the freezer room 3 is used. It is suitable for cooling the vegetable room 5 to a slightly high temperature of 4 to 6 ° C., and it is also suitable for a cooling system that is not too cold.

The vegetable compartment 5 is configured to be cooled by the substrate portion 30A of the vegetable compartment cooler 30 exposed at the ceiling portion of the vegetable compartment 5, but the substrate portion 30A is positioned in the cold air return passage 28, and the fin It can also be set as the structure which 30B exposed to the ceiling part of the vegetable compartment 5. FIG. Also, the substrate part 30A
Are embedded in the heat insulating material 6B2, fins similar to the fins 30B are formed on both upper and lower sides of the substrate portion 30A, one fin is positioned in the cold air return passage 28, and the other fin is placed in the vegetable compartment 5 It can also be set as the structure exposed to the ceiling part.

In any form of the cooler 3 for the vegetable compartment, the portion exposed to the ceiling portion of the vegetable compartment 5 is difficult to negotiate with the vegetables and the like stored in the vegetable container 14 with the top opening. In consideration of safety so that it is difficult for the user's fingers to touch, a depression 31 that is recessed upward is formed on the lower surface of the partition wall 6B corresponding to the ceiling portion of the vegetable compartment 5. For this reason, vegetable room cooler 3
The portion exposed to the ceiling portion of the vegetable compartment 5 (for example, the substrate portion 30A) is incorporated so as to fit in the recess 31 without protruding downward from the recess 31.

In such a configuration, the refrigerator compartment 3 is kept at about 3-4 ° C., the freezer compartment 4 is kept at about −18 ° C. to −20 ° C., and the vegetable compartment 4 is kept at about 2-3 ° C. or 4-6 ° C. . The specific low temperature chamber 9 is a chilled chamber of about 1 ° C. higher than 0 ° C., or about 0 to −1 ° C. lower than 0 ° C. and higher than the freezing temperature of food.
Or a partial freezing chamber at about −4 ° C. to the extent that a thin ice layer is formed on the surface of the food. As described above, the specific low temperature chamber 9 is used for refrigerated storage of food in a specific temperature range, and requires stricter temperature control than other rooms.

The present invention forms a refrigerator compartment, a freezer compartment, a vegetable compartment, the vegetable compartment is disposed adjacent to the lower side of the freezer compartment, a main cooler is disposed on the back of the freezer compartment, The cooled cold air is circulated to the refrigerator compartment and the freezer compartment by a blower through a path that does not flow into the vegetable compartment, and the vegetable compartment is cooled by the cold air returning from the freezer compartment to the main cooler. Since it is a system which cools with a container, the form of a refrigerator may be arrangement | positioning of a freezer compartment, a vegetable compartment, and a refrigerator compartment from the top.

The vegetable room cooler 3 is cooled by the return cold air from the freezer compartment 4, and the return cold air from the refrigerator compartment 3 is merged with the return cold air from the freezer compartment 4 upstream of the main cooler 19. If there are, various modifications can be considered without departing from the technical scope of the present invention, and the present invention includes various embodiments according to the modifications.

It is a vertical side view of the refrigerator of this invention. (Example 1) It is an upper part front view of the refrigerator main body of this invention. (Example 1) It is AA sectional drawing of FIG. (Example 1) It is BB sectional drawing of FIG. (Example 1) It is CC sectional drawing of FIG. (Example 1)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Refrigerator 2 ... Refrigerator main body 3 ... Refrigeration room 4 ... Freezer room 5 ... Vegetable room 6A, 6B ... Heat insulation partition wall 19 ... Main cooler 20 ... Electric blower 26 ..Return cold air passage 26A, 26B in the refrigerating room Ducts on the left and right sides of the return cold air passage 27 in the refrigerating room 27.Main cooler chamber 28.Return cold air passage 30 in the freezer room 30Cooler for vegetable room 30A Fin 30B ・ ・ Board part 31 ・ ・ Recess

Claims (4)

Cold air that forms a refrigerator compartment, a freezer compartment, a vegetable compartment, the vegetable compartment is disposed adjacent to the lower side of the freezer compartment, a main cooler is disposed on the back of the freezer compartment, and is cooled by the main cooler Is circulated to the refrigerator compartment and the freezer compartment by a blower in a path that does not flow into the vegetable compartment, and the vegetable compartment is cooled by the return air of the freezer compartment to the main cooler. A refrigerator having a cold air duct structure in which the cold air returned from the refrigerator compartment is merged with the cold air returned from the freezer compartment. Cold air that forms a refrigerator compartment, a freezer compartment, a vegetable compartment, the vegetable compartment is disposed adjacent to the lower side of the freezer compartment, a main cooler is disposed on the back of the freezer compartment, and is cooled by the main cooler Is circulated to the refrigerator compartment and the freezer compartment by a blower through a path that does not flow into the vegetable compartment, and a cold air return passage returning from the freezer compartment to the main cooler is insulated between the freezer compartment and the vegetable compartment. A return is formed in the partition wall, one side is arranged in a heat exchange relationship with the cold air in the cold air return passage and the other side is exposed to the vegetable room, and returns from the refrigerator compartment to the cooler. A cold air duct configuration is adopted in which the cold air merges with the cold air in the cold air return passage. A refrigerator compartment, a freezer compartment, and a vegetable compartment are formed from above, a main cooler is disposed on the back of the freezer compartment, and the cool air cooled by the main cooler is routed by a blower through a path that does not flow into the vegetable compartment. A cold air return passage that circulates to the refrigerator compartment and the freezer compartment and returns from the freezer compartment to the main cooler is formed in the heat insulating partition wall between the freezer compartment and the vegetable compartment, and one side is the cold air return passage. A cooler for a vegetable room is provided in a heat exchange relationship with the inside cold air, and the other side is exposed to the vegetable room, and the return cold air returning from the refrigerating room to the main cooler is downstream of the vegetable room cooler. A refrigerator having a cold air duct structure that joins cold air in the cold air return passage from both sides of the cold air return passage. A refrigerator compartment, a freezer compartment, and a vegetable compartment are formed from above, a main cooler is disposed on the back of the freezer compartment, and the cool air cooled by the main cooler is routed by a blower through a path that does not flow into the vegetable compartment. A cold air return passage that circulates to the refrigerator compartment and the freezer compartment and returns from the freezer compartment to the main cooler is formed in the heat insulating partition wall between the freezer compartment and the vegetable compartment, and one side is the cold air return passage. A cooler for the vegetable room is provided in a heat exchange relationship with the inside cold air, and the other side is exposed to the vegetable room, and the return cold air returning from the refrigerating room to the main cooler is from the upstream side of the vegetable room cooler. A refrigerator having a cold air duct configuration that merges with the cold air in the cold air return passage.

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