KR20000051790A - Refrigerator - Google Patents

Abstract

PURPOSE: A refrigerator is provided to smoothly supply cool air to each storing space for increasing refrigerating efficiency of the storing spaces while locally achieving concentrative refrigerating of a selected storing space. CONSTITUTION: A refrigerator includes a main body(1) formed with a plurality of storing spaces, a plurality of doors(7,9) for opening and closing the storing spaces, a main duct(15) formed in a rear wall of the main body for receiving an evaporator(17) and forming a flow channel of refrigerant from the evaporator and having discharge holes(19) opened toward the respective storing spaces, and a plurality of discharge fans(21a,21b,21c,21d) provided at the respective discharge holes' areas for blowing cool air from the main duct to the respective storing spaces and individually controlled.

Description

Refrigerator {REFRIGERATOR}

The present invention relates to a refrigerator, and more particularly, a plurality of main ducts having discharge ports opened toward respective storage spaces, and a plurality of independently controlled and blown cool air from the main ducts to each storage space. It relates to a refrigerator having a discharge fan of.

9 is a side cross-sectional view of a conventional refrigerator. As shown in this figure, the conventional refrigerator is provided in the main body 101 forming the freezing chamber 103 and the refrigerating chamber 105, and in the front opening of the freezing chamber 103 and the refrigerating chamber 105, and the freezing chamber 103 and The refrigerator compartment door 107 and the refrigerator compartment door 109 which rotate and open and close the refrigerator compartment 105 are provided.

The freezing chamber 103 and the refrigerating chamber 105 are partitioned into a plurality of storage spaces by a support shelf 111 for supporting the storage product, and a vegetable chamber 113 for storing vegetables is provided below the refrigerating chamber.

On the other hand, the cold air duct 115 which accommodates the evaporator 117 and the blowing fan 119 is provided in the rear wall of the freezer compartment 103 and the refrigerator compartment 105, and the evaporator 117 is provided in the rear wall surface of the refrigerator compartment 105. A plurality of cold air discharge ports 121 for discharging cold air from each of the storage spaces are formed along the vertical direction of the refrigerating chamber 105. In addition, a suction inlet 123 is formed on the rear wall surface of the refrigerating chamber 105, and is connected to the suction port 123 to recirculate cold air sucked through the suction port 123 into the cold air duct 115. The flow path 125 is provided.

By the above configuration, the cold air generated from the evaporator 117 is discharged to each storage space through the plurality of cold air discharge ports 121 by the rotation of the blower fan 119, and the discharged cold air is stored in the storage space. Cool the storage. The cold air that cools the stored product is introduced into the lower side of the evaporator 117 through the circulation passage 125 and cooled again while passing through the evaporator 117 to be supplied to each storage space to cool the stored product.

By the way, in such a conventional refrigerator, cold air is circulated by the pressure difference generated by the operation of the blower fan provided in the cold air duct, and the flow of cold air is high because the suction resistance and the discharge resistance of the circulation flow path and the cold air duct are large. There is a problem that it is not made smoothly.

In addition, in the case where a large amount of stored products are stored in the supporting shelf, cooling of the stored products stored at a predetermined distance from the cold air discharge port is not easy. In addition, the cold air discharged through the cold air discharge ports may not smoothly supply the cold air to the door guard because the flow of the cold air may be blocked by the storage items stored in the respective storage spaces.

Accordingly, an object of the present invention is to provide a refrigerator capable of smoothing the flow of cold air to improve cooling efficiency, and supplying cold air to the door guard to effectively cool the storage items stored in the door guard.

1 is a perspective view of a refrigerator in which a refrigerating chamber door is opened according to the present invention;

Figure 2 is a side cross-sectional view of the refrigerator closed refrigerator door of Figure 1,

3 is a partially enlarged perspective view of the damper of FIG. 1;

4 is an assembled side cross-sectional view of FIG.

5 and 8 are side cross-sectional views of a refrigerator showing cold air supply according to the operation of each discharge fan;

9 is a side cross-sectional view of a conventional refrigerator.

* Explanation of symbols for the main parts of the drawings

1: body 3: freezer

5: refrigerator compartment 7: freezer door

9: refrigerating chamber door 11: support shelf

15 main duct 17 evaporator

19: discharge port 21 (a, b, c, d): discharge fan

23 (a, b, c, d): Temperature sensor 25: Branch duct part

27 (a, b, c, d): Damper 30: Door duct

31: inlet 33: outlet

35: shelf circulation duct 37: suction port

According to the present invention, the object is formed in the rear wall of the main body of the refrigerator having a main body for forming a plurality of storage spaces by a support shelf and a door provided on the front of the main body to open and close the plurality of storage spaces. A main duct configured to receive an evaporator, form a flow path of cold air from the evaporator, and having a discharge port opened toward each of the storage spaces; And a plurality of discharge fans which are provided in each discharge port area and blow air from the main duct to the respective storage spaces and are independently controlled.

Here, further comprising a shelf circulation duct provided in any one of the support shelves in communication with the main duct, the outlet provided in the door opening toward any one of the storage spaces and the inlet opening toward the other storage spaces It is preferable that a door duct having a is provided.

In addition, it is preferable to provide a suction port opened toward the outlet side of the door duct in the shelf circulation duct.

A temperature sensor provided in each of the storage spaces to sense a temperature of each of the storage spaces; It is preferable to further include a control unit for controlling the operation of the discharge fan in accordance with the sensing temperature by each of the temperature sensor.

The main duct preferably has a plurality of branch ducts for branching and supplying cold air from the evaporator to the plurality of storage spaces.

A damper is provided in each of the branch ducts, and the damper is operated by the operation of the discharge fan.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a refrigerator with a refrigerating compartment door according to the present invention, FIG. 2 is a side cross-sectional view of the refrigerator with the refrigerating compartment door of FIG. 1 closed, FIG. 3 is a partially enlarged perspective view of the damper of FIG. It is an assembly side sectional drawing of FIG. As shown in these drawings, the refrigerator includes a main body 1 in which a freezer compartment 3 and a refrigerating compartment 5, which are provided to freeze and refrigerate stored products, are formed on an upper and lower sides, respectively, and a freezer compartment 3 and a refrigerating compartment 5. It has a freezing chamber door (7) and the refrigerating chamber door (9) for opening and closing the front opening of the).

The refrigerating chamber 5 is provided with a support shelf 11 for efficiently storing and storing stored goods, and divides the up and down direction of the refrigerating chamber 5 into a plurality of storage spaces, and stores vegetables in the lower side of the refrigerating chamber 5. The vegetable room 13 is provided. In the rear wall of the refrigerating chamber 5, a main duct 15 is provided which accommodates the evaporator 17 in which cold air is generated and forms a cold air flow path from the evaporator 17.

On the rear wall surface of the refrigerating chamber 5, a plurality of discharge ports 19 for discharging the cold air from the evaporator 17 toward each storage space are formed at predetermined intervals along the longitudinal direction of the refrigerating chamber 5. On each discharge port 19 side, a plurality of discharge fans 21 which are independently controlled by blowing cold air flowing through the main duct 15 to each storage space are provided. In the refrigerating chamber 5, a plurality of temperature sensors 23 (a), 23 (b), 23 (c) and 23 (d) are provided in each storage space to sense the temperature of each storage space, and each temperature sensor. A control unit (not shown) is provided to operate and control the discharge fan 21 in accordance with the sensed temperature.

On the other hand, a plurality of discharge holes 26 are formed in the main duct 15 to supply the cool air from the evaporator 17 to each discharge fan 21 side, and each discharge hole area is formed as the main duct 15. A plurality of branch duct portions 25 are provided for smoothly supplying the flowing cold air. The branched duct portion 25 has a shorter flow path than that of the branched duct portion 25 that supplies cold air to the discharge port 19 adjacent to the evaporator 17. As shown in FIG. The shorter the flow path of the duct portion 25, the smaller the size of the discharge hole 26.

In addition, each branch duct portion 25 is provided with a damper 27, which is an opening and closing valve body for supplying cold air by opening and closing the discharge hole 26 according to whether the discharge fan 21 is operated. 3 and 4, the damper 27 is made of vinyl composite material in a size corresponding to the size of the discharge hole 26 of the branch duct portion 25. As shown in FIG.

At this time, the discharge hole 26 corresponding to the damper 27 is formed to be inclined downward by a predetermined angle in the direction opposite to the cold air discharge direction from the upper edge of the discharge hole 26, the lower side of the discharge hole 26 In the edge portion, a flow limiting jaw 40 is provided that restricts the flow of the damper 27. Thus, when the discharge fan 21 does not operate, a cold air flow region 28 is formed by a predetermined angle between the damper 27 and the discharge hole 26.

In the refrigerating chamber door 9 which opens and closes the front opening of the refrigerating compartment 5, a door duct having an outlet 31 opened toward one of the respective storage spaces and an inlet 33 opened toward the other storage spaces. 30 is provided. The shelf circulation duct provided in any one of the several support shelves which partition the refrigerating compartment 5 has the suction port 37 opened toward the outlet 31 side of the door duct 30, and is communicated with the main duct 15. As shown in FIG. 35 is provided.

By the above configuration, the controller detects and senses the temperature of each storage space by the temperature sensors 23 (a), 23 (b), 23 (c), and 23 (d) provided in each storage space. When the temperature is higher than the initial set value, the discharge fans 21 (a), 21 (b), 21 (c), and 21 (d) are operated.

As shown in FIG. 2, when all of the discharge fans 21 (a), 21 (b), 21 (c), and 21 (d) operate, cool air from the evaporator passes through the discharge ports 21 to each storage space. Blowing to cool storage items. The cold air supplied to each storage space flows into the door duct 30 through the plurality of inlets 33 formed in the refrigerating chamber door 9. The cold air flowing into the door duct 30 flows along the door duct 30 and then circulates to the shelf circulation duct 35 through the outlet 31 formed in the door duct 30. Accordingly, it is possible to smoothly supply the cold air to each storage space, and improve the cooling efficiency of the stored product stored in the door guard.

5 and 8 are side cross-sectional views of the refrigerator showing the supply of cold air according to the operation of each discharge fan. In these drawings, FIG. 5 shows the temperature sensors 23 (a) and 23 (d) among the temperatures detected by the temperature sensors 23 (a), 23 (b), 23 (c) and 23 (d). If one temperature is above the set temperature, only the discharge fans 21 (a) and 21 (d) are operated. When the discharge fans 21 (a) and 21 (d) operate, the dampers 27 (b) and 27 (c) are discharged by cold air by the discharge pressure of the discharge fans 21 (a) and 21 (d). The discharge holes 26 (b) and 26 (c) are blocked because they rotate in the opposite direction. At this time, since the dampers 27 (a) and 27 (d) are opened in the discharge direction of the cold air, the cold air can be supplied to each storage space area above a predetermined set temperature.

FIG. 6 illustrates a case in which only the discharge fan 21 (a) operates, and FIG. 7 illustrates a case in which only (21 (b) and 21 (c)) operate, and FIG. 8 illustrates a case where only (21 (b)) operates. As shown, it is possible to increase the cooling efficiency due to the intensive cooling of each storage area.

On the other hand, the cold air flow unit 28 provided between the damper 27 and the discharge hole 26, the main duct (preventing frost in the interior of the main duct 15 when all the discharge fans do not operate) Cold air from 15) is naturally supplied to the refrigerating chamber 5.

Thus, the main duct is formed in the rear wall of the main body to receive the evaporator and to form a flow path of the cold air from the evaporator and having a discharge port opened toward each of the storage spaces; By discharging the cool air from the main duct to each of the storage spaces and providing a plurality of discharge fans independently controlled in each of the discharge port areas, it is possible to smoothly discharge the cold air to each of the storage space areas.

As described above, according to the present invention, it is possible to smoothly supply cold air to each storage space to increase the cooling efficiency of each storage space, and to provide a refrigerator capable of partially intensive cooling.

In addition, according to the present invention, there is provided a refrigerator capable of improving the cooling efficiency of the storage items stored in the door guard by the door duct formed in the door.

Claims (8)

A refrigerator having a main body for forming a plurality of storage spaces by a support shelf and a door provided on the front surface of the main body to open and close the plurality of storage spaces, A main duct formed in the rear wall of the main body to receive an evaporator and to form a flow path of cold air from the evaporator and having discharge ports opened toward the respective storage spaces; And a plurality of discharge fans provided in each of the discharge port areas to blow cool air from the main duct into the respective storage spaces and be independently controlled. The method of claim 1, And a shelf circulation duct provided on one of the support shelves to communicate with the main duct. The method of claim 2, And a door duct provided in the door and having an outlet opening toward one of the storage spaces and an opening opening toward the other storage space. The method of claim 3, And a suction port which is opened toward the outlet side of the door duct in the shelf circulation duct. The method of claim 4, wherein A temperature sensor provided in each of the storage spaces to sense a temperature of each of the storage spaces; And a control unit for controlling the operation of the discharge fan according to the detected temperature by each temperature detecting sensor. The method of claim 5, The main duct has a plurality of branch ducts for supplying the cold air from the evaporator to the plurality of storage spaces. The method of claim 5, And a damper is provided in each of the branch ducts. The method of claim 7, wherein The damper is a refrigerator characterized in that the operation by the operation of the discharge fan.