KR19990030104A - Refrigerator - Google Patents

Abstract

The present invention provides a refrigerator capable of effectively preventing a decrease in the cooling capacity of the refrigerating compartment while securing the cooling capacity of the vegetable compartment. The refrigerator 1 of the present invention divides the inside of the heat insulating case member 6 open to the front with a partition wall, whereby the freezing chamber 13, the upper and lower ice room 10 and the vegetable chamber 12, and the ice room 10 The upper refrigerating chamber 11 is formed, and a cooler and a blower are installed in the cooling chamber formed inside the freezing chamber 13, and the cold air cooled by the cooler is supplied to each room by the blower. 12, the cold air circulated in the refrigerating chamber 11 and the ice room 10 is supplied via the vegetable chamber duct 87, and a part of the cold air supplied to the ice room 10 is directly supplied to the vegetable chamber duct 87. Supply.

Description

Refrigerator

The present invention relates to a refrigerator formed by partitioning an inside of a heat insulating case member open to the front with a partition wall to form a freezer compartment, an upper and lower ice chamber and a vegetable chamber, and a refrigerating chamber above the ice chamber.

Conventionally, refrigerators of this kind constitute a freezing compartment or a refrigerating compartment in a heat insulating case member, for example, as disclosed in Japanese Unexamined Patent Application Publication No. 6-12301 (F25D23 / 00), and at the same time a cooler in a cooling compartment partitioned inside the freezing compartment. The method of installing a blower, supplying the cool air cooled by this cooler to each said chamber with a blower, and circulating and cooling is employ | adopted.

In recent years, in addition to the above-mentioned freezer and refrigerator compartments, the refrigerator is provided with a vegetable compartment or an ice-cold compartment. In the vegetable compartment, vegetables which are reluctant to dry are indirectly cooled in a container, and raw meat and fresh in an ice-cold compartment. Preservation of perishable foods, such as fish, in the ice-cold temperature range of 0 degreeC--3 degreeC is developed.

In such a situation, part of the cold air cooled by the cooler is directly distributed and supplied by the duct in the refrigerating chamber or the ice-cold chamber, and the temperature of each chamber is controlled by adjusting the air volume with a damper. The structure which circulates comparatively high temperature cold air after circulating in a greenhouse is employ | adopted.

Here, when the load in the refrigerating compartment or the ice-cold chamber is increased, such as when the heat insulation door is opened or closed, or when a large amount of food is put in, the temperature of the cold air supplied to the vegetable compartment also increases, so that the cooling capacity of the vegetable compartment cannot be secured. Therefore, this has been conventionally solved by taking a part of the cold air supplied to the refrigerating chamber in a duct configuration in which the cold chamber is directly distributed to the vegetable chamber.

By the way, when a freezer compartment, an ice compartment, a refrigerator compartment, and a vegetable compartment are comprised in the refrigerator as mentioned above, the ice compartment and the vegetable compartment are normally comprised above and below the freezer compartment, and the refrigerator compartment which becomes largest capacity is comprised in the upper part of an upper part of an ice compartment. Will be. That is, the refrigerating chamber is configured at the position furthest from the cooler, and the wind speed of the cold air supplied by the cooler is also lowered.

Therefore, when a part of the cold air in the refrigerating compartment is configured to be distributed to the vegetable compartment as described above, a problem arises in that the cooling capacity of the refrigerating compartment cannot be secured during the installation of the refrigerator or the so-called pull-down after defrosting.

This invention is made | formed in order to solve such a conventional technical subject, and it is providing the refrigerator which can effectively prevent the fall of the cooling ability of a refrigerating compartment, while ensuring the cooling capability of a vegetable compartment.

1 is a front view of the refrigerator of the present invention.

Figure 2 is a front view of the refrigerator of the present invention with the insulation door removed.

Fig. 3 is a front view of the refrigerator in which the insulation door is similarly removed in a state where the container or the like is removed.

Figure 4 is a longitudinal side view of the refrigerator of the present invention.

Figure 5 is another longitudinal side view of the refrigerator of the present invention.

Figure 6 is another longitudinal side view of the refrigerator of the present invention.

Figure 7 is a perspective view of a freezer compartment of the refrigerator of the present invention.

Figure 8 is a perspective front view of the partition plate inside the freezer compartment of the refrigerator of the present invention.

Figure 9 is an enlarged vertical side view of the lower part of the cooler of the refrigerator of the present invention.

Figure 10 is another enlarged longitudinal side view of the lower part of the cooler of the refrigerator of the present invention.

Figure 11 is a front view of the cooler of the refrigerator of the present invention.

12 is a plan view of the cooler of the refrigerator of the present invention;

Figure 13 is a side view of the cooler of the refrigerator of the present invention.

Figure 14 is an exploded perspective view of the upper partition wall of the refrigerator of the present invention.

Figure 15 is a plan sectional view of an upper partition wall portion of the refrigerator of the present invention.

Figure 16 is a longitudinal side view of the front portion of the membrane of the refrigerator of the present invention.

17 is an exploded perspective view of a water supply tank for an automatic ice maker of the refrigerator of the present invention.

18 is a longitudinal side view of a water supply tank for automatic ice maker of the refrigerator of the present invention.

19 is a vertical front view of a water supply tank for an automatic ice maker of the refrigerator of the present invention.

Explanation of symbols for main parts of drawings>

1: refrigerator

6: insulation case member

7: middle partition wall

8: upper partition wall

9: lower partition wall

10: ice room

11: cold storage room

11A: refrigerating chamber discharge port

12: Vegetable Room

13: freezer

13A: Freezer compartment outlet

13B, 13C: Freezer Intake

24: cooling chamber

26: cooler

26A, 26B, 26C: sparse pin density area

27: pin

28: refrigerant piping

48: Ice Room Duct

63: return duct

77, 78: refrigerating chamber suction duct

79, 81: Intake vent in front of the fridge

83: communication path

87: Vegetable Room Duct

The refrigerator of the present invention divides the inside of the heat insulating case member opened to the front with a partition wall to form a freezer compartment, an upper and lower ice chamber and a vegetable chamber, and a refrigerator compartment above the ice chamber, and a cooler formed in the freezer compartment. And an air blower, and the chilled air cooled by the cooler is supplied to each room by the blower. The vegetable room is supplied with cold air circulated in the refrigerating chamber and the ice room through the vegetable room duct, and the vegetable room duct is supplied to the ice room. It is to directly supply some of the cold air.

According to the present invention, the inside of the heat insulating case member opened to the front side is partitioned with a partition wall to form a freezer compartment, an upper and lower ice chamber and a vegetable chamber, and a cold compartment above the ice chamber, and a cooler formed in the inside of the freezer compartment. And a blower provided with cold air cooled by the cooler to each room with a blower, wherein the vegetable room is supplied with cold air circulated in the refrigerating chamber and the ice-cold room through the vegetable room duct, and the ice-cold room in the vegetable room duct. Since part of the cold air supplied to the gas is supplied directly, the cooling capacity of the vegetable compartment can be secured without adversely affecting the refrigerator compartment away from the cooler and the blower.

The refrigerator of the invention according to claim 2 is provided with an ice-chamber duct for supplying cold air to the ice-chamber in a partition wall separating the refrigerator-chamber and the ice-chamber, and a refrigerating-room suction duct into which cold air circulated in the refrigerating chamber flows in parallel. The refrigerator compartment suction duct communicates with the vegetable compartment duct, and the ice-cold chamber duct and the refrigerator compartment suction duct are communicated by the communication path.

According to the invention of claim 2, in addition to the above, an ice-chamber duct for supplying cold air to the ice-chamber is installed in a partition wall partitioning the refrigerating-chamber and the ice-chamber, and a refrigerating-room suction duct into which cold air circulated in the refrigerating chamber flows in parallel. The cold room suction duct was communicated with the vegetable chamber duct, and the ice-chamber duct and the cold room suction duct were communicated by the communication path. Therefore, a duct structure for supplying a part of the cold air supplied to the ice-chamber chamber directly to the vegetable chamber duct is concentrated in the partition wall. It becomes possible to make it possible, and the duct structure is remarkably simplified, and it becomes possible to aim at the cost reduction and the improvement of cooling capability.

EMBODIMENT OF THE INVENTION Next, embodiment of this invention is described in detail based on drawing. 1 is a front view of the refrigerator of the present invention, FIG. 2 is a front view of the refrigerator with the door removed, FIG. 3 is a front view of the refrigerator with the door removed in a similar state with the container removed, and FIG. 4 is the end of the refrigerator of the present invention. 5 is another end side view of the refrigerator, and FIG. 6 is another end side view of the refrigerator.

The refrigerator 1 has a front opening formed by filling an insulating material 4 such as polyurethane foam in a field foaming manner between an outer case 2 made of steel and an inner case 3 made of a hard resin such as ABS. The heat insulation case member 6 is comprised. Inside this heat insulation case member 6, it is divided into four upper and lower chambers by the upper partition wall 8, the middle partition wall 7, and the lower partition wall 9, and the upper part of the upper partition wall 8 is refrigerated room ( 11), the lower partition wall 9 is placed between the vegetable chamber 12, the upper partition wall 8, and the middle partition wall 7 between the ice chamber 10, the middle partition wall 7, and the lower partition wall 9; ) Is a freezer compartment 13. In addition, the front member 15 is attached to the edge of the opening between the middle partition wall 7 and the lower partition wall 9.

And the front opening of the refrigerating compartment 11 is closed so that opening and closing is possible by the left-right opening and closing insulated doors 14 and 14, and the freezing compartment 13 and the vegetable compartment 12 are the containers 16A, 17A, and 18A of the upper opening. Drawer-type heat-insulated doors 16 and 17 (the freezer chambers 13 are two upper and lower stages) and 18, respectively, so as to be openable and closed. Moreover, the ice-cold room 10 is also closed so that opening and closing is possible by the drawer type heat insulation door 19 provided with the container 19A of an upper surface opening.

Moreover, the automatic ice maker 21 is provided in the upper left corner part of the freezer compartment 13. In addition, the inside of the freezing chamber 13 is partitioned back and forth by the partition plate 22 and the cooler front plate 23, and the cooling chamber 24 is formed in the back of the cooler front plate 23, and this cooling chamber 24 The cooler 26 is installed vertically in the inside). A blower 29 is provided above the center of the cooler 26, and a defrost heater 31 is provided below the cooler 26.

A plurality of freezer compartment discharge ports 13A... Are formed in the upper and center portions of the partition plate 22, and freezer compartment suction ports 13B and 13B are disposed between the lower left and right sides of the partition plate 22. Freezer compartment suction ports 13C and 13C are also formed adjacent to the lower center part, respectively.

On the other hand, the cooler front plate 23 is provided at the rear of the partition plate 22 with a space | interval a little, and the grill 23A which the fan 32 of the blower 29 faces is formed in the upper part. The space between the partition plate 22 in front of the fan 32 and the cooler front plate 23 communicates with the freezing chamber 13A... An opening 23B is formed in the lower center portion of the cooler front plate 23 and communicates with the freezer compartment suction ports 13C and 13C and the cooling chamber 24. In addition, the freezer compartment suction ports 13B and 13B communicate with the lowermost part of the cooling chamber 24 via the lower end of the cooler front plate 23.

Here, as shown in Figs. 11 to 13, a plurality of coolers 26 are provided at predetermined intervals, and the fins 27 are made of aluminum sheet extending in the vertical direction, and these fins 27 A so-called plate fin heat exchanger comprising a refrigerant pipe 28 passing through, wherein the fin density (pitch) at the lower end of the cooler 26 is coarse, and the fin densities at the left and right front and rear sides excluding the center are also coarse. It is.

That is, the upper and lower dimensions of each pin 27... Are composed of two or three pins 27 ... short in succession, and the left and right pins 27 sandwiching them are long, and in the center portion is short. The upper and lower dimensions of the pin 27 are shortened every other sheet. Moreover, the width | variety of the front and back of each pin 27 located in left and right is also narrowed every other sheet.

As a result, the region 26A having a sparse fin density is raised in the lower corner portion of the cooler 26 and the region 26A is continuously raised from the region 26A in the center portion, so that the fin density extending slightly below the center portion in the upper and lower portions is increased. The sparse region 26B also has a region where the fin density is sparse on the left and right front and rear corners (outer portion of the cooler 26 where the corner portion of the fin 27 extending in the vertical direction through which the cold air flows). ·) Is configured. The region 26B corresponds to the lower side of the blower 29, and the opening 23B corresponds to the front of the region 26B (Fig. 8).

Above the blower 29, the guide duct 39 is formed in the form which penetrates up and down the rear part of the shaping | molding heat insulating material 38 inserted in the middle partition wall 7, The lower part of this guide duct 39 is a fan. (32) In communication with the space in front, the branch duct 42 comprised in the shaping | molding heat insulating material 41 is connected by the upper part. The branch duct 42 passes through a motor damper 46 having a refrigerator compartment baffle 43 and an ice compartment baffle 44, and one side is a refrigerator compartment back duct 47, and the other is an ice compartment duct ( In communication with 48). The refrigerator compartment baffle 43 is located at the inlet of the refrigerator compartment rear duct 47, and the ice compartment baffle 44 is located at the inlet of the icehouse duct 48.

A rear duct plate 49 is attached to the inside of the refrigerating chamber 11 at intervals from the rear surface of the inner case 3, and extends up and down between the rear duct plate 49 and the inner case 3. The back duct 47 is formed. The refrigerator compartment discharge port 11A is formed in the front surface of the back duct board 49. As shown in FIG. In the refrigerating chamber 11, shelves 51... Are provided in multiple stages. In addition, a refrigerating chamber rear suction port 61 is formed at the lower right corner of the rear duct plate 49 on the rear side of the refrigerating chamber 11, and the refrigerating chamber rear suction port 61 is the back plate 62 of the ice room 10. It communicates with the feedback duct 63 upper part formed in the shaping | molding heat insulating material 38, 41 side of the back side.

Moreover, the water supply tank 52 for supplying water to the said automatic ice maker 21 is accommodated in the lower left corner part of the refrigerating chamber 11. As shown in Figs. 17-19, the water supply tank 52 has a tank main body 53 which is opened to the top and back in an elongated upper surface, a cover 54 which closes the upper surface opening of the tank main body 53, and The lid member 56 attached to the cover 54 is comprised.

In this case, a concave portion 54A having a rectangular shape is formed in the front portion of the cover 54, and an injection hole 57 having a rectangular shape is also formed at the bottom of the concave portion 54A. In addition, the lid member 56 pivotally supports the hinge portions 56A and 56A at both rear edges of the cover 54 at the rear of the injection hole 57 to close the injection hole 57 so as to be opened and closed.

The lid member 56 has a concave shape corresponding to the inner surface shape of the recessed portion 54A, whereby the lid member 56 is configured so that a finger can be sufficiently caught. Moreover, the absorption cylinder part 54B is lowered in the tank main body 53 in the rear part of the cover 54, and this absorption cylinder part 54B communicates with the connection part 54C which opens back at the rear end of the cover 54. As shown in FIG. Doing.

When such a water supply tank 52 is installed, it is inserted into the refrigerating chamber 11 from the front, and the connection part 54C is detachably connected to the water supply pipe 59 provided in the inside. The water supply pipe 59 communicates with the automatic ice maker 21, and the water in the tank main body 53 is sucked up from the absorption tube portion 54B and passes through the connection portion 54C and the water supply pipe 59 to the automatic ice maker ( 21), and ice making operation is performed there. The generated ice is stored in the freezer compartment 13.

When water in the tank body 53 disappears due to this ice making operation, the water supply tank 52 is taken out from the refrigerating chamber 11. However, in this case, a finger is inserted into the concave lid member 56 and pulled forward. By pulling, the water supply tank 52 can be taken out easily.

The lid member 56 is rotated from the front to the upper side to open the injection port 57, and water is replenished in the tank body 53. However, in this case, the lid member 56 can be easily opened and closed so that the injection work can be performed. It becomes easy. In addition, although the lid member 56 is closed and conveyed after replenishment, in this case, the lid member 56 is located along the inner surface of the concave portion 54A of the cover 54, and thus the injection port 57 is closed ( Fig. 19) also prevents water from leaking out due to vibration during conveyance from the injection port 57 or the like.

On the other hand, the upper partition wall 8, as shown in Figs. 14 and 15, is made of a hard resin upper plate 66, lower plate 67, and a molded heat insulating material provided along the lower surface of the upper plate 66 ( 68, and the ice-chamber duct 48 is formed between the molded heat insulating material 68 and the lower plate 67. Ice chamber duct 48 is configured to extend forwardly from the inlet portion 48A of the rear portion by the one-blocked partition-shaped partition wall 69 installed on the upper surface of the lower plate 67, the middle portion and the front portion In the lower plate 67 located, a plurality of ice-chamber discharge ports 71 are formed.

In addition, partitions 72 to 74 are erected on the lower plates 67 at the front and the right of the partition 69, and the two partitions are formed in the upper partition wall 8 outside the icehouse duct 48. The refrigerator compartment suction ducts 77 and 78 are arranged side by side. In addition, the front side of the upper plate 66 has the refrigerating chamber front suction ports 79 and 81 formed on the left and right sides thereof, and the refrigerating chamber front suction port 79 on the left side is provided at the inlet portion 77A of the refrigerating chamber suction duct 77 on the left side. Further, the right side refrigerating chamber front suction port 81 communicates with the inlet portion 78A of the right side refrigerating chamber suction duct 78, respectively. Moreover, the rear end of each refrigerator compartment suction duct 77, 78 communicates with the said return duct 63, and as a result, it communicates with the vegetable chamber duct 87 mentioned later.

In this case, the passage cross-sectional area of the refrigerating compartment suction duct 77 on the left side is formed larger than the passage cross-sectional area of the refrigerating compartment suction duct 78 on the right side, and the suction unit 77A is also larger than the suction unit 78A (Fig. 15). ). Here, since each refrigerator compartment suction duct 77 and 78 is formed bypassing from the front of the ice-cold chamber duct 48 to the right, the path length of the refrigerator compartment suction duct 77 of the left side is the refrigerator compartment suction duct 78 of the right side. ) Is longer than the passage length.

Further, a narrow communication path 83 is formed between the partition wall 72 and the partition wall 69, and the communication path 83 of the front end of the ice-cold room duct 48 and the refrigerating chamber suction duct 77 is formed. The suction part 77A is in communication. And the ice-chamber suction port 84 is formed in the right side of the back plate 62 of the ice-chamber 10, and is connected to the return duct 63. As shown in FIG.

On the other hand, the upper end of the vegetable chamber duct member 86 is connected to the right side part of the molded heat insulating material 38, and the right side of the cooling chamber 24 is lowered downward, and the vegetable chamber duct 87 is comprised inside. . The upper end of this vegetable chamber duct 87 communicates with the said return duct 63, and the lower end is opened by the vegetable chamber discharge port 88 of the upper right inner side of the vegetable chamber 12. As shown in FIG.

A vegetable chamber suction duct 91 is formed in the lower partition wall 9, and the vegetable chamber suction duct 91 is opened at the vegetable chamber suction port 92 opened to the inner upper surface of the vegetable chamber 12, and the cooling chamber is further opened. It communicates with the lower end part of (24).

As shown in Fig. 16, the partition front member 15 is made of a hard resin body 93, a molded heat insulating member 94 provided in the body 93, a steel plate front plate 96, and It consists of a high-temperature refrigerant pipe 97 for preventing condensation attached to the back side, and the lower wall of the main body 93 has a shape in which the front portion 93A is low and the rear portion 93B is stepped.

Moreover, at the rear end of this front part 93A, the engaging part 93C which protrudes rearward at intervals at the lower side of the rear part 93B is integrally formed in the position slightly above the lower surface. The base portion 98A of the sealing member 98 is attached to the engaging portion 93C by being joined from the rear, and the soft tail piece 98B protrudes downward from the front side.

The soft tail piece 98B of the sealing member 98 seals against the rear of the front edge of the container 17A in a state where the insulating door 17 is closed, but in this case, the base 98A of the sealing member 98 is sealed. The lower surface of the surface is substantially the same surface as the lower surface of the front 93A of the main body 93. That is, since the base 98A of the sealing member 98 or its attachment part (the partition is formed in the front member 15) does not protrude downward, the container 17A is not caught, and the container 17A by that amount. The effective volume can be extended by enlarging the upper and lower dimensions of.

This structure is similarly formed in the other partition walls 7, 8, and 9. In addition, 104 is a refrigerating compartment temperature sensor for detecting a temperature in the refrigerating compartment 11 and is attached to the rear duct plate 49, 106 is an ice compartment temperature sensor for detecting a temperature in the ice compartment 10 and a lower plate 67 is provided. Attached.

Moreover, the machine room 99 is comprised in the lower part of the heat insulation case member 6, and the compressor 10 which comprises the said cooler 26 and a well-known refrigeration cycle is shown in the rear part of this machine room 99, and is not shown in figure. Condenser, machine room blower, etc. are installed. In addition, a kick plate 102 is attached to the lower side of the insulated door 18 at the front end of the machine room 99, and the kick plate 102 is provided with an inlet 103 for venting into the machine room 99. Punching is installed.

With the above configuration, when the compressor 101 and the blower 29 are operated, the cool air in the cooling chamber 24 cooled by the cooler 26 is sucked upward by the fan 32 of the blower 29, and the front It is drawn out into the freezer compartment 13 from the freezer compartment discharge port 13A... After circulating and cooling the vessels 16A and 17A in the freezer compartment 13, the cold air is returned into the cooling chamber 24 from the lower freezer compartment inlets 13B, 13B, 13C, and 13C. As a result, the freezing chamber 13 is maintained at a predetermined freezing temperature (about -20 ° C). Moreover, the operation of the compressor 101 and the blower 29 is controlled based on the freezer compartment temperature sensor which detects the temperature in the freezer compartment 13.

Here, the cool air introduced from the freezer compartment inlets 13B and 13B flows into the cooler 26 from the region 26A at the lower end of the cooler 26 and rises between the fins 27..., But the freezer compartment inlet 13C, The cool air introduced from 13C is introduced into the cooler 26 from the region 26B slightly lower than the center portion of the cooler 26 above and below.

As will be described later, since the humid cool air circulating in the refrigerating chamber 11, the ice-cold chamber 10, and the vegetable chamber 12 flows from the vegetable chamber suction duct 91 from the region 26A at the lower end of the cooler 26, A large amount of frost adheres and grows in the region 26A of the cooler 26, but the cold air flowing from the freezer compartment inlets 13C and 13C has a fin density of the cooler 26 sparse from the upper side (downstream side) 26B. The cold air flowing in from the region 26B is not impeded by the frost grown in the region 26A because the gas is introduced into the region below the blower 29 having a dense fin density after that.

In addition, the region 26C... Of the fin density is also formed on the front and rear corners of the cooler 26 right and left (outer part of the cooler 26 where the corners of the fins 27 extending in the vertical direction through which the cool air flows) are located. Since it is comprised, even if area | region 26A is closed by the growth of frost, frost closing is delayed as much as area | region 26C exists.

Therefore, even in such a case, since the cool air can be introduced into the cooler 26 and exchanged with heat from the region 26C, the cooling capacity of the cooler 26 can be significantly improved by maintaining the heat exchange between the fin 27 and the circulation cold air. It becomes possible.

In addition, since the region 26C is formed on the left and right sides of the cooler 26 corresponding to the blower 29, the pin density of the portion where the cool air is most distributed in the cooler 26 is as described above. Becomes dense. Therefore, when frost has grown while maintaining the heat exchange efficiency in the frost-free or low state, the heat exchange can be secured by maintaining the circulation of cold air as described above from the regions 26B and 26C.

A part of the cold air extracted from the blower 29 flows into the guide duct 39 and is divided into two directions in the branch duct 42, and then one side passes through the refrigerator compartment baffle 43 of the motor damper 46. It flows into the refrigerating chamber back duct 47. The cool air introduced into the refrigerating compartment rear duct 47 is drawn out from the refrigerating compartment discharge port 11A ... into the refrigerating compartment 11, circulated and cooled inside, and then the refrigerating compartment inlet 61 and the refrigerating compartment front inlet 79, 81 Flows into).

The other classified in the branch duct 42 flows into the ice chamber duct 48 through the ice chamber baffle 44 of the motor damper 46. The cold air flowing into the ice-chamber duct 48 is sucked into the ice-chamber 10 from the ice-chamber discharge port 71 ..., circulates inside, cools, and flows into the ice-chamber suction port 84.

The motor damper 46 opens and closes the baffle 43 based on the output of the refrigerating compartment temperature sensor 104, and maintains the inside of the refrigerating compartment 11 at a refrigerating temperature of about + 5 ° C. Moreover, the baffle 44 is opened and closed based on the output of the ice-cold room temperature sensor 106, and the inside of the container 19A in the ice-cold room 10 is maintained in the ice-temperature area | region of about 0 degreeC--3 degreeC, for example.

The cold air introduced into the refrigerating chamber suction port 61 and the ice-cold chamber suction port 84 is directly introduced into the return duct 63, but the cold air introduced from the cold chamber front suction ports 79 and 81 is in the refrigerating chamber suction ducts 77 and 78. Each flows into the return duct 63 through the inside. Moreover, a part (small amount) of the cold air which flowed into the ice-chamber duct 48 flows directly into the refrigerator compartment suction duct 77 through the communication path 83, without passing in the ice-chamber 10, and the suction port 79 The cold air from the duct 63 is introduced into the return duct 63.

Here, as mentioned above, the passage length of the refrigerator compartment suction duct 77 on the left side is longer than the passage length of the refrigerator compartment suction duct 78 on the right side. Therefore, since the flow path resistance of the refrigerating chamber suction duct 77 becomes larger than the flow path resistance of the refrigerating chamber suction duct 78 at the same passage cross-sectional area and the suction part area, the amount of cold air sucked from the refrigerating chamber front suction port 79 is the refrigerating chamber front suction port 81. It becomes less than the amount of cold air sucked from).

If the intake cooling air amount is different from the left side and the right side of the refrigerating compartment 11, the cooling effect of the front part in the refrigerating compartment 11 is shifted left and right, and in the embodiment, the left side is not colder than the right side. Since the passage cross-sectional area of the suction duct 77 is formed larger than the passage cross-sectional area of the refrigerating chamber suction duct 78 on the right side, and the suction portion 77A is also formed to extend from the suction portion 78A, both ducts 77 and 78 are formed. The flow path resistance of is substantially uniform. Therefore, the flow rate of cold air into the refrigerating chamber front suction ports 79 and 81 becomes substantially uniform, and the inside of the refrigerating chamber 11 can be cooled uniformly.

Next, the cold air introduced into the return duct 63 flows into the vegetable chamber duct 87, and drops therein and is discharged from the vegetable chamber discharge port 88 into the vegetable chamber 12. Then, the inside of the vegetable chamber 12 is circulated to indirectly cool the inside of the container 18A, and then passed through the inside of the vegetable chamber suction duct 91 formed in the lower partition wall 9 by being sucked from the vegetable chamber 92 to form a cooling chamber ( 24) return to the bottom of the inside. Then, as described above, the liquid flows back into the region 26A of the cooler 26.

As a result, the vegetables in the container 18A are stored at a temperature of about + 3 ° C. to + 5 ° C. in a state where drying is prevented. However, as described above, the cold air from the communication path 83 is returned to the return duct 63. Since low-temperature cold air (cold air as cooled by the cooler 26) flows into the greenhouse 10 or the refrigerating chamber 11, the load in the refrigerating chamber 119 or the ice-cooling chamber 10 is increased, and the cold air temperature is increased. Even when is increased, the cooling capacity in the vegetable chamber 12 is secured.

In addition, since part of the cold air supplied to the ice-cooling room 10 is directly supplied to the vegetable chamber 12, the cooling chamber 26 far from the cooler 26 and the blower 29 is adversely affected, and the cooling rate at the time of pulldown is reduced. It is possible to secure the cooling capacity of the vegetable chamber 12 without lowering it.

Moreover, since the duct structure which supplies a part of the cold air supplied to the ice-cold room 10 directly to the vegetable chamber duct 87 is integrated in the upper partition wall 8, duct structure is remarkably simplified, cost reduction and cooling ability It becomes possible to aim at the improvement of.

As described above, according to the present invention, the inside of the heat insulating case member opened to the front side is partitioned by a partition wall, thereby forming a freezer compartment, an upper and lower ice-cold chamber and a vegetable chamber, and a refrigerating chamber above the ice-cold chamber. In a refrigerator in which a cooler and a blower are installed in a cooling chamber, and cold air cooled by the cooler is supplied to each room by a blower, the vegetable chamber is supplied with cold air circulated in a refrigerating chamber and an ice-cold chamber through a vegetable chamber duct, Since part of the cold air supplied to the ice-cold room is directly supplied to this vegetable room duct, the cooling function of the vegetable room can be ensured without adversely affecting the refrigerator compartment away from the cooler and the blower.

According to the invention of claim 2, in addition to the above, an ice-chamber duct for supplying cold air to the ice-chamber is installed in a partition wall partitioning the refrigerating-chamber and the ice-chamber, and a refrigerating-room suction duct into which the cold air circulated in the refrigerating chamber flows in parallel. The cold room suction duct was communicated with the vegetable chamber duct, and the ice-chamber duct and the cold room suction duct were communicated with each other through the communication path. Therefore, a duct structure for supplying a part of the cold air supplied to the ice-chamber chamber directly to the vegetable chamber duct is collected in the partition wall. It becomes possible to do this, and the duct structure is remarkably simplified, and it becomes possible to aim at reduction of a cost and improvement of a cooling capability.

Claims (2)

By partitioning the inside of the heat insulating case member opened to the front with a partition wall, a freezer compartment, an upper and lower ice chamber and a vegetable chamber, and a refrigerating chamber above the ice chamber are formed, and a cooler and a blower are formed in the cooling chamber formed inside the freezer compartment. In the refrigerator formed by supplying the cool air cooled by the cooler to each room with the blower, And supplying cold air circulated in the refrigerating chamber and the ice-cold chamber through the vegetable chamber duct, and directly supplying a part of the cold air supplied to the ice-cold chamber to the vegetable chamber. The refrigerator compartment according to claim 1, wherein an ice-cold chamber duct for supplying cold air to the ice-cold chamber is installed in a partition wall partitioning the refrigerator compartment and the ice-cold chamber, and a refrigerator compartment suction duct through which cold air circulated in the refrigerator compartment flows. And a suction duct communicating with the vegetable chamber duct, and wherein the ice-temperature chamber duct and the refrigerating chamber suction duct are communicated by the communication passage.