KR100653351B1 - A cool air supply structure of storage receptacle for refrigerator - Google Patents

Abstract

A cold air supply structure of a storage receptacle for a refrigerator is provided to supply the cold air into a plurality of storage receptacles in a divided manner to indirectly cool the storage receptacles. A cold air supply structure of a storage receptacle for a refrigerator includes a cold air duct(50), and at least one pair of upper covers. The cold air duct is installed at one side of a cool chamber, and forms a fluid passage for flowing the cold air supplied from a cold air supply source of the exterior through a cold air supply port(39) formed at one side of the cool chamber. The at least one pair of upper covers blocks an accommodating space of storage receptacles reciprocally installed at the cool chamber, and has fluid passages through which the cold air supplied from the cold air duct flows. The cold air duct has a cold air guide for dividing the fluid passage of the cold air duct into a predetermined number of passages to supply the cold air into the upper cover in a divided manner.

Description

Storage box for refrigerators {A cool air supply structure of storage receptacle for refrigerator}

1 is a front view showing the internal structure of a refrigerator according to the prior art.

Figure 2 is a perspective view showing a preferred embodiment of the storage box cold air supply structure for a refrigerator according to the present invention.

3 is an exploded perspective view showing the embodiment shown in FIG. 2 from another angle;

Figure 4 is a side cross-sectional view showing the main part of the embodiment shown in FIG.

Fig. 5 is a side view showing the main portion of the box casing constituting the embodiment shown in Fig. 2.

FIG. 6 is a side sectional view showing main parts of a box casing constituting the embodiment shown in FIG. 2; FIG.

7 is a partially cutaway perspective view showing a box casing constituting the embodiment shown in FIG.

Figure 8 is a side cross-sectional view showing a state in which the cold air supplied by the embodiment shown in FIG.

Figure 9 is a side cross-sectional view showing the main part of another embodiment of a storage box cold air supply structure for a refrigerator according to the present invention.

10 and 11 are side cross-sectional views illustrating a process in which cold air is controlled by the embodiment shown in FIG. 9.

Explanation of symbols on the main parts of the drawings

30: main body 31: freezer

33: refrigerator 33h, 33'h: fastener

35: Barrier 36,37,38: Supporting jaw

39: cold air supply opening 41: damper

43: fan assembly 45: fixing piece

46: fixing protrusion 47: through hole

47s: Fastener 50: Cold duct

50 P: Euro 51: Duct body

52: cold air outlet 52g: cold air guide

53: flange 54: fastening piece

55: through hole 55s: fastener

56, 57, 58: support piece 59: sensor mounting

60: shelf 70,70 ': vegetable box

70S, 70'S: Storage 71,71 ': Guide rib

73,73 ': Engagement flange 75,75': Handle portion

80,80 ': Box casing 80S, 80'S: Mounting space

80P, 80'P: Euro 80i, 80'i: Cold Inlet

80o, 80'o: Cold outlet 81,81 ': Top cover

82,82 ': Upper plate 82h, 82'h: Jam hook

83,83 ': Lower plate 83h, 83h': Hook hook

83s, 83's: Mounting opening 83a, 83'a: Support end

84,84 ': Lower casing 84a, 84'a: Close flange

85,85 ': Supporting rib 86,86': Supporting part

87,87 ': Guide rail 88,88': Upper guide rail

88a, 88'a: Reinforcement rib 88b, 88'b: Incline guide

89,89 ': Lower guide rail 89a, 89'a: Reinforcement rib

90,90 ': Moisture-proof material S: Temperature sensor

The present invention relates to a refrigerator, and more particularly to a refrigerator storage box cold air supply structure for supplying cold air to the storage box of the refrigerator.

1 shows the internal structure of a refrigerator according to the prior art.

As shown in the figure, a predetermined storage space in which food is stored is provided in the refrigerator body 10. The storage space of the main body 10 is partitioned from side to side to form a freezing chamber 11 and a refrigerating chamber 13. In addition, the main body 10 includes a freezing compartment door 11a and a refrigerating compartment door 13a to selectively open and close the freezing compartment 11 and the refrigerating compartment 13. The freezing chamber door 11a and the refrigerating chamber door 13a are respectively installed on one side of the main body 10 so that the front end of the freezing chamber door 11a is rotatable forward and backward of the main body 10.

On the other hand, a plurality of door baskets 15 are provided on the rear surfaces of the freezing chamber door 11a and the refrigerating chamber door 13a. The door basket 15 is for storing food. The door basket 15 is provided on the rear surface of the freezing chamber door 11a and the refrigerating chamber door 13a to be spaced up and down by a predetermined interval.

In addition, a plurality of shelves 17 are installed in the freezing chamber 11 and the refrigerating chamber 13. The shelf 17 is detachably installed in the freezer compartment 11 and the refrigerating compartment 13 to partition the freezer compartment 11 and the refrigerating compartment 13 up and down. The food is seated on the upper surface of the shelf 17.

In addition, a plurality of vegetable boxes 19 are installed in the lower portion of the refrigerating chamber 13 to be withdrawn. The inside of the vegetable box 19 is provided with a predetermined storage space for storing food, for example, vegetables or fruits. The storage space of the vegetable box 19 is generally open at the top, and is shielded by the bottom surface of the vegetable box located on the bottom of one of the shelves 17 or above.

Next, the process of cold air circulation inside the refrigerator, that is, inside the freezer compartment and the refrigerating compartment, will be described.

First, cold air is formed by heat exchange with a refrigerant flowing through an evaporator (not shown) provided in the main body 10 corresponding to the rear of the freezing chamber 11. Such cold air is supplied to the freezing compartment 11 and the refrigerating compartment 13 through a cold air supply port (not shown) respectively provided on the freezing compartment 11 and the refrigerating compartment 13.

On the other hand, the cold air supplied to the freezing chamber 11 and the refrigerating chamber 13 circulates inside the freezing chamber 11 and the refrigerating chamber 13 to freeze or refrigerate the stored food. The cold air that freezes or refrigerates the food stored in the freezing compartment 11 and the refrigerating compartment 13 flows toward the evaporator through a cold air return hole (not shown) provided in the lower part of the freezing compartment 11 and the refrigerating compartment 13. As a result, circulation of cold air is performed inside the refrigerator.

However, the refrigerator according to the related art has the following problems.

As described above, the storage space of the vegetable box 19 is shielded by the bottom of any one of the shelves 17 or the bottom of the vegetable box located directly above, but is not completely sealed. Therefore, since the cold air circulating in the refrigerating compartment 13 is transferred to the storage space of the vegetable box 19 and comes into contact with foods such as vegetables or fruits stored therein, the food is stored in the storage space of the vegetable box 19. There is a fear that the smell of other foods stored in the refrigerating chamber 13 may double or the moisture of the food may evaporate and dry.

In addition, as described above, the cold air circulating in the refrigerating chamber 13 is supplied through the cold air supply port provided in the upper portion of the refrigerating chamber 13 and returned through the cold air return hole provided in the lower portion of the refrigerating chamber 13. . However, since the vegetable box 19 is installed at the lower portion of the refrigerating chamber 13, the cold air delivered to the storage space of the vegetable box 19 circulates through the refrigerating chamber 13, that is, the cold air that cools the food, that is, relatively. The temperature rises to cold air. On the other hand, when the amount of food stored in the refrigerating chamber 13 is low, cold air of low temperature flows below the refrigerating chamber 13 is transferred to the storage space of the vegetable box (19). Therefore, there is a fear that the food stored in the storage space of the vegetable box 19 may be weakly cooled or supercooled.

The present invention is to solve such a conventional problem, an object of the present invention is to provide a storage box cold air supply structure for a refrigerator configured to be stored more fresh food stored in the storage box.

Another object of the present invention is to provide a storage box cold air supply structure for a refrigerator configured to divide and supply cold air for indirect cooling of a plurality of storage boxes.

According to a feature of the present invention for achieving the above object, the present invention is provided on one side of the refrigerating chamber, the flow path is formed through the cold air supply port formed in one side of the refrigerating chamber flows from the cold air supply source flows Cold air duct; At least one pair of upper covers for shielding a storage space of a storage box installed in the refrigerating compartment and having a flow path through which cold air supplied from the cold duct flows; It is configured to include, wherein the cold air duct is characterized in that it is provided with a cold guide for partitioning the flow path of the cold air duct in a predetermined number in order to supply cold air to the upper cover.

The cold air duct is installed on one side of the refrigerator compartment side partitioning the freezer compartment and the refrigerating compartment, and the cold air of the freezer compartment is transmitted to the flow path of the cold air duct through a cold air supply port formed in the barrier.

The cold air duct is formed in a hexahedral shape in which one surface in the longitudinal direction is opened to form a flow path between an inner surface and the barrier, and a flange portion provided at an edge of the duct body to be in close contact with one side of the barrier. The cold air guide may be provided inside the duct body to partition the flow path of the cold air duct so that the area communicating with the cold air supply port is the same.

The duct body includes first and second cold air outlets respectively formed on one side of the upper surface and the bottom of the longitudinal direction, and the cold air guide is provided horizontally in the duct body corresponding to the cold air supply port. The flow passage of the cold air duct is divided up and down so that the area communicating with the supply port is the same.

According to the present invention, the food stored in the plurality of storage boxes can be stored more freshly by indirect cooling and at the same time there is an advantage that can evenly supply the cold air for indirect cooling of the plurality of storage boxes.

Hereinafter, a preferred embodiment of a storage box cold air supply structure for a refrigerator according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view showing a preferred embodiment of a storage box cold air supply structure for a refrigerator according to the present invention, FIG. 3 is an exploded perspective view, and FIG. 4 is an embodiment shown in FIG. The main portion of the example is shown in a side cross-sectional view, and box casings constituting the embodiment shown in FIG. 2 are shown in side views, side cross-sectional views, and partial cutaway perspective views, respectively.

As shown in the drawing, a storage space is provided in the refrigerator body 30. Such a storage space is composed of a freezer compartment 31 and a refrigerating compartment 33 which are partitioned from side to side by a barrier 35 provided in the main body 30. The freezing chamber 31 and the refrigerating chamber 33 have a cold air supply port (not shown) to which cold air heat exchanged from an evaporator (not shown) is supplied, and a cold air return hole for flowing cold air circulated therein to the evaporator (not shown). H) are each provided.

And, as shown in Figure 3, both side surfaces of the refrigerating chamber 33 is provided with a plurality of support jaws, respectively. The support jaw is provided long in the front and rear at the height corresponding to both sides of the refrigerating chamber 33, respectively. The support jaw is formed by protruding portions of the inner case forming the refrigerating chamber 33 to face each other. The supporting jaw is composed of first supporting jaws 36a and 36b, second supporting jaws 37a and 37b, and third supporting jaws 38a and 38b.

The first support jaw (36a) (36b) is for supporting the shelf 60 to be described below. The second supporting jaws 37a and 37b are positioned below the first supporting jaws 36a and 36b and support the first box casing 80 to be described below. The third supporting jaws 38a and 38b are positioned below the second supporting jaws 37a and 37b to support the second box casing 80 ', which will be described below.

On the other hand, the front ends of the first supporting jaw 36a, the second supporting jaw 37a, and the third supporting jaw 38a, which are provided on the left side in the drawing of the refrigerating chamber 33, are shown in the drawing of the refrigerating chamber 33 The first support piece 56, the second support piece 57, and the third support piece of the cold air duct 50, which will be described below, respectively, based on the tip of the first support jaw 36b provided on the right side. 58 is spaced apart from the rear side of the refrigerating chamber 33 by a length corresponding to the front and rear lengths. The front ends of the second supporting jaw 37b and the third supporting jaw 38b provided on the right side of the refrigerator compartment 33 are respectively provided on the right side of the refrigerator compartment 33. Compared to the tip of 36b, the rear side of the refrigerating compartment 33 is spaced by a length corresponding to the front and rear length of the fixing piece 45 to be described below.

In addition, the barrier 35 has a cold air supply port 39 is formed. The cold air supply port 39 serves as a passage through which cold air circulating in the freezing chamber 31 is transferred to the cold air duct 50. In the illustrated embodiment, the cold air supply port 39 is formed in a rectangular shape, but the shape of the cold air supply port 39 is not limited thereto.

3 and 4, a damper 41 is provided inside the barrier 35 corresponding to the cold air supply port 39. The damper 41 is composed of a baffle that is rotatably installed, and a drive motor for rotating the baffle. Since the structure of the damper 41 is already well known, a detailed description thereof will be omitted.

The damper 41 is the cold air supply port 39 in accordance with the temperature inside the storage space 70S (70 'S) of the vegetable box 70, 70' is detected by the temperature sensor (S) to be described below. It serves to selectively open and close the. That is, the damper 41 opens the cold air supply port 39 only when the temperature inside the storage spaces 70S and 70'S of the vegetable boxes 70 and 70 'is greater than or equal to a predetermined value.

On the other hand, a fan assembly 43 is installed on the opposite side of the cold air duct 50, that is, one surface of the barrier 35 forming one side of the freezing compartment 31. The fan assembly 43 includes a mounting frame fixed to one surface of the barrier 35 adjacent to the cold air supply port 39, a fan rotatably installed on the mounting frame, and a driving motor for driving the fan. It can be configured as.

The fan assembly 43 serves to flow the cold air of the freezing chamber 31 to the cold air duct 50 through the cold air supply port 39. To this end, the fan assembly 43 is preferably driven only when the cold air supply port 39 is opened by the damper 41.

In addition, as shown in FIG. 3, fixing pieces 45 are provided on the right side of the refrigerating chamber 33 adjacent to the distal ends of the second supporting jaw 37b and the third supporting jaw 38b, respectively. The fixing piece 45 is formed to have a substantially c-shaped side cross section. Fixing protrusions 46 are respectively provided at the top end of the bottom plate of the fixing piece 45, and a plurality of through holes 47 are formed at the side surface of the fixing piece 45.

The fixing protrusion 46 protrudes upward by a predetermined height, and the fixing protrusions 46 have fixing hooks 85h and 85'h (see FIG. 5) of the box casings 80 and 80 ', respectively. Is inserted. A fastener 47S for fastening the through hole 47 to a fastening hole 33h formed on the right side of the refrigerating chamber 33 passes through.

Meanwhile, referring to FIGS. 3 and 4, a cold air duct 50 is provided on one surface of the barrier 35 forming one side of the refrigerating chamber 33. The cold air duct 50 is provided with a predetermined flow path 50S in communication with the cold air supply port 39. The cold air duct 50 is a duct body 51 formed in a hexahedral shape in which one surface in the longitudinal direction is opened, a flange portion 53 provided on the edge of the duct body 51, and the flange portion 53 It is composed of a plurality of support pieces provided in.

The duct body 51 substantially forms a flow path 50P of the cold air duct 50. That is, the flow path 50P of the cold air duct 50 is formed between the inner surface of the duct body 51 and one surface of the barrier 35. A pair of cold air outlets 52a and 52b are formed on one surface of the duct main body 51 parallel to one surface of the barrier 35. The cold air outlets 52a and 52b are for supplying cold air to the flow paths 80P and 80'P of the box casings 80 and 80 ', respectively. The cold air outlets 52a and 52b may include a first cold air outlet 52a formed on an upper surface of the duct body 51 in the longitudinal direction, and a second cold air outlet 52b provided on a bottom surface of the duct body 51. It is composed of

In addition, a cold air guide 52g is provided inside the duct body 51 corresponding to the flow path 50P of the cold air duct 50. The cold air guide 52g has the same amount of cold air delivered through the cold air supply port 39 through the first cold air outlet 52a and the second cold air outlet 52b. ') Serves to be supplied to each of the flow path (80S) (80' S).

To this end, the cold air guide 52g is provided horizontally in the duct body 51 corresponding to the cold air supply port 39 so that the area communicating with the cold air supply port 39 is the same. The flow path 50P of 50 is divided up and down. That is, the flow path 50P of the cold air duct 50 has a lower portion corresponding to the upper flow path 50Sa corresponding to the first cold air outlet 52a and the second cold air outlet 52b by the cold air guide 52g. It is divided into the flow path 50Sb.

The flange portion 53 is in close contact with one surface of the barrier 35 forming one side surface of the refrigerating chamber 33. A fastening piece 54 is provided at the rear end of the flange portion 53. The fastening piece 54 is provided to be stepped toward the one side of the barrier 35 with respect to the flange portion 53, that is, to the left in the drawing. The fastening piece 54 is inserted into a fastening slot 35s formed on one surface of the barrier 35. In addition, a plurality of through holes 55 are formed in the flange portion 53. Fasteners 55s passing through the through holes 55 are fastened to a plurality of fastening holes 35h formed on one surface of the barrier 35, respectively.

The support piece is composed of a first support piece 56, a second support piece 57, and a third support piece 58. One side end of the bottom surface of the shelf 60 is supported by the first support piece 56. A first box casing 80 and a second box casing 80 ′ are respectively supported by the second support piece 57 and the third support piece 58.

The first support piece 56 and the third support piece 58 are orthogonal to the flange portion 53 in a direction away from the upper right and lower ends of the flange portion 53, that is, one surface of the barrier 35. Each extends. The first to third support pieces 56, 57 and 58 are elongated in front and rear, so that the first to third support jaws 36a and 37a provided on the left side of the refrigerating chamber 33 ( Each extends substantially the length of 38a). In the illustrated embodiment, the upper surface of the duct body 51 substantially serves as the second support piece 57. However, it is also possible that the second support piece 57 is provided in the flange portion 53 in a separate configuration.

In addition, the cold air duct 50 is provided with a sensor installation unit (59). The sensor installation part 59 is formed by recessing a part of the flange part 53 in a direction away from the right side of the drawing, that is, one surface of the barrier 35. The sensor installation unit 59 is in close contact with one side of the first box casing (80).

The sensor installation unit 59 is provided with a temperature sensor (S). The temperature sensor S serves to detect the temperature inside the storage spaces 70S and 70'S of the vegetable boxes 70 and 70 '. That is, the temperature sensor (S) is substantially in the vegetable box 70, 70 by sensing the temperature of the first box casing 80 in close contact with the sensor installation unit 59 in the state installed in the sensor installation unit 59 Any one of '), that is, the temperature inside the storage space 70S of the first vegetable box 70 is sensed.

As shown in Figure 2 and 3, the refrigerating chamber 33 is a plurality of shelves are installed detachably. The shelf 60 which is installed in the lower side of the shelf is a refrigerating compartment 33 for a space (hereinafter referred to as a vegetable compartment for convenience) in which the vegetable boxes 70 and 70 'and the box casings 80 and 80' are installed. ) To partition. This is to block the heat exchange between the refrigerating chamber 33 and the vegetable chamber to prevent any one from changing the temperature inside the other. Both side end portions of the bottom surface of the shelf 60 are supported by the first support jaw 36a and 36b and the first support piece 56 of the cold air duct 50, respectively. In the illustrated embodiment, any one of the shelves 60 serves to partition the refrigerator compartment 33 and the vegetable compartment, but it is also possible to divide them by a member constituted separately.

The vegetable room is installed in a plurality of vegetable boxes in a cashier. Hereinafter, a vegetable box installed at the uppermost side of the vegetable box is referred to as a first vegetable box 70 and a vegetable box installed directly below the first vegetable box 70 as a second vegetable box 70 '. Vegetable box 70 "installed below the second vegetable box 70 'is irrelevant to the subject matter of the present invention, detailed description thereof will be omitted.

The vegetable boxes 70 and 70 'are formed in a hexahedral shape each of which is opened at an upper portion thereof. Inside the vegetable boxes 70 and 70 ', predetermined storage spaces 70S and 70'S are respectively provided. Foods such as vegetables or fruits are stored in the storage spaces 70S and 70'S of the vegetable boxes 70 and 70 '.

Guide ribs 71 and 71 'are provided on both sides of the vegetable boxes 70 and 70', respectively. The guide ribs 71 and 71 ′ slide along the guide rails 87 and 87 ′, which will be described below, and are withdrawn in the mounting spaces 80S and 80 ′ S of the box casings 80 and 80 ′. It serves to guide the vegetable boxes (70, 70 '). The guide ribs 71 and 71 'protrude outward from the side surfaces of the vegetable boxes 70 and 70' by a predetermined length, and the tip ends thereof are inclined upward at a predetermined angle toward the front.

In addition, engaging flanges 73 and 73 'are provided at both ends of the front surface of the vegetable boxes 70 and 70'. The back surface of the locking flanges 73 and 73 'is a box casing in a state where the vegetable boxes 70 and 70' are accommodated in the mounting spaces 80S and 80'S of the box casings 80 and 80 '. It comes in close contact with the contact flange 84a of 80 and 80 '. And the front of the vegetable box 70, 70 'is provided with handles 75, 75', respectively. The handles 75 and 75 'are portions that the user grabs by hand to withdraw the vegetable boxes 70 and 70'.

Meanwhile, as shown in FIG. 3, a pair of box casings 80 and 80 ′ are installed in the refrigerating chamber 33. Mounting spaces 80S and 80'S are respectively provided in the box casings 80 and 80 '. The vegetable boxes 70 and 70 'are installed in the mounting spaces 80S and 80'S of the box casings 80 and 80', respectively.

The box casings 80 and 80 'indirectly cool the food stored in the storage spaces 70S and 70'S of the vegetable boxes 70 and 70', respectively. The box casings 80 and 80 'may include a first box casing 80 through which the first vegetable box 70 is withdrawn and a second box casing 80' through which the second vegetable box 70 'is withdrawn. It is composed of The box casings 80 and 80 'are composed of upper covers 81 and 81' and lower casings 84 and 84 ', respectively.

As shown in detail in FIGS. 5 to 7, the upper covers 81 and 81 ′ are composed of upper plates 82 and 82 ′ and lower plates 83 and 83 ′. The upper plates 82 and 82 'form an upper surface and front upper end portions of the box casings 80 and 80'. The lower plates 83 and 83 'are installed in the lower casings 84 and 84' corresponding to the lower portions of the upper plates 82 and 82 '. The upper plates 82, 82 'and the lower plates 83, 83' are each formed in a rectangular plate shape, and the lower plates 83, 83 'are lower than the upper plates 82, 82'. ) Has a relatively small front and rear length and right and left width. In addition, both end portions of the upper plates 82 and 82 ′ protrude from the opposite sides of the lower casings 84 and 84 ′ in a direction away from each other by a predetermined width, so that the bottom surfaces thereof are the second supporting jaw 37a. ) 37b and the second support piece 57.

The lower casings 84 and 84 'are formed in a hexahedral shape in which the front part and the upper part are opened to correspond to both side surfaces, rear surfaces, and bottom surfaces of the vegetable boxes 70 and 70'. Adhering flanges 84a extending in both directions or below are provided at both side surfaces and bottom ends of the lower casings 84 and 84 '. The back surface of the engaging flanges 73 and 73 'of the vegetable boxes 70 and 70' are in close contact with the front surface of the close contact flange 84a.

Support ribs 85 are provided at upper ends of both sides of the lower casings 84 and 84 '. The support ribs 85 are formed by bending the upper ends of both side surfaces of the lower casings 84 and 84 'away from each other. The bottom edge of the upper plates 82 and 82 ′ is supported on the upper surface of the support ribs 85.

A support step 86 is provided at the rear of the lower casings 84 and 84 '. The support step portion 86 is formed by the rear end of the lower casings 84 and 84 'being stepped backward. The rear end portions of the bottom surfaces of the lower plates 83 and 83 'are supported by the support step portions 86 of the lower casings 84 and 84'.

Also, as shown in FIG. 7, guide rails 87 and 87 ′ are provided at both inner sides of the lower casings 84 and 84 ′, respectively. The guide ribs 87 and 87 'are guided by the vegetable boxes 70 and 70' in the process of dispensing them into the mounting spaces 80S and 80'S of the box casings 80 and 80 '. 71) (71 ') to guide.

The upper and lower guide rails 87 and 87 'are formed to be inclined upward at a predetermined angle toward the front, that is, at the same angle as the guide dribs 71 and 71'. 87 '). Accordingly, the guide ribs 71 and 71 'are substantially slid along the space between the upper guide rail 87 and the lower guide rail 87'. In the state where the vegetable boxes 70 and 70 'are completely mounted in the mounting spaces 80S and 80'S of the box casings 80 and 80', the guide ribs 71 and 71 'are The lower guide rail is substantially supported on the upper surface of the guide rail 87 '.

The upper guide rail 87 and the lower guide rail 87 'are spaced apart by a predetermined distance up and down. A plurality of reinforcing ribs 88a, 88 ′ a, 89 a, 89 ′ a are provided on an upper surface of the upper guide rail 87 and a bottom of the lower guide rail 87 ′. The reinforcing ribs 88a, 88 ′ a, 89 a, 89 ′ a are inclined upward or downward at predetermined angles from an upper surface of the upper guide rail 87 and an upper surface of the lower guide rail 87 ′, respectively. It extends inclined to reinforce the upper guide rail 87 and the lower guide rail 87 '.

And the tip of the upper guide rail 87 is provided with inclined guide portion 88b (88'b) formed to be inclined upward toward the front at a relatively larger angle. The inclined guides 88b and 88'b are guides in the process of receiving the vegetable boxes 70 and 70 'into the mounting spaces 80S and 80'S of the box casings 80 and 80'. The ribs 71 and 71 ′ serve to guide the slide along the space between the upper guide rail 87 and the lower guide rail 87 ′.

The box casings 80 and 80 'have lower surfaces of the upper plates 82 and 82', upper surfaces of the lower plates 83 and 83 ', and inner surfaces of the lower casings 84 and 84'. The flow path 80P (80'P) formed by the upper edge is provided. Cold air supplied from the cold air duct 50 flows through the flow paths 80P and 80'P of the box casings 80 and 80 '.

To this end, as shown in FIG. 3, the cold air inlets 80i and 80'i and the cold air outlets 80o and 80'o are respectively formed in the box casings 80 and 80 '. The cold air inlets 80i and 80'i of the box casings 80 and 80'are configured to enter an inlet zone through which cold air delivered from the cold air duct 50 flows into each of the flow paths 80S and 80'S. The cold air outlets 80o and 80'o of the box casings 80 and 80 'serve as an outlet through which the cold air circulated through the respective flow paths 80S and 80'S is discharged to the outside.

The cold air inlet 80i of the first box casing 80 is provided at an upper end of one side surface of the lower casings 84 and 84 'forming the flow path 80P. That is, the cold air inlet 80i of the first box casing 80 is substantially formed on the side of the first box casing 80. The cold air inlet 80i of the first box casing 80 communicates with the first cold air outlet 52a of the cold air duct 50 to supply cold air to the flow path 80P of the first box casing 80. do.

In the cold air inlet 80'i of the second box casing 80 ', a portion of the side surfaces of the lower casings 84 and 84' forming the flow path 80'P is predetermined to the right in the drawing in FIG. It extends by the length of is formed. That is, the cold air inlet 80'i of the second box casing 80 'is substantially formed on the upper surface of the second box casing 80'. The cold air inlet 80 ′ of the second box casing 80 ′ communicates with the second cold air outlet 52 b of the cold duct 50 so that the flow path 80 ′ of the second box casing 80 ′. Cold air is supplied to P).

The cold air outlets 80o and 80'o of the box casings 80 and 80 'are shown in FIG. 3 of the lower casings 84 and 84' forming respective flow paths 80P and 80'P. It is provided on the upper left in the drawing. The cold air outlets 80o and 80'o of the box casings 80 and 80 'are in communication with the return ducts of the refrigerating chamber 33, respectively. However, the cold air outlets 80o and 80'o of the box casings 80 and 80 'do not necessarily communicate with the return duct of the refrigerating compartment 33.

The cold air inlets 80i and 80'i and the cold air outlets 80o and 80'o of the box casings 80 and 80 'are shown in detail in FIG. That is, the cold air inlets 80i and 80'i of the first box casing 80 and the second box casing 80 'correspond to the positions of the cold air outlets 52a and 52b of the cold air duct 50, respectively. The positions are different from each other by being formed. However, the cold air outlets 80o and 80'o of the first box casing 80 and the second box casing 80 'are formed at the same positions corresponding to the positions of the return ducts of the refrigerating compartment 33.

5 and 6, a pair of hooking hooks 82h and 83h are provided at both ends of the bottom surfaces of the upper plates 82 and 82 ′ and the lower plates 83 and 83 ′, respectively. The hook hooks 82h and 83h are provided in pairs at predetermined intervals on both side ends of the bottom surfaces of the upper plates 82 and 82 'and the lower plates 83 and 83'. The hooking hooks 82h and 83h are opened toward the rear by their front ends being bent rearwards in a state extending downward from the bottoms of the upper plates 82, 82 'and the lower plates 83, 83'. It is formed into an L shape.

The lower casings 84 and 84 'are provided with locking protrusions 85a, 85'a, 86a and 86'a. The engaging protrusions 85a, 85'a, 86a and 86'a are formed by the upper plates 82 and 82 'and the lower plates 83 and 83'. The upper cover 81, 81 ', ie, the upper plate 82, 82 by being inserted into the engaging hooks 82h and 83h while being supported by the upper end of both sides and the support step 86, respectively. ') And the lower plates 83 and 83' are fixed to the lower casings 84 and 84 '.

The locking protrusions 85a, 85 'are inserted into the locking hooks 82h, 83h of the upper plates 82, 82' of the locking protrusions 85a, 85'a, 86a, 86'a. a) is provided with a pair each in the outer surface of the said support rib 85, and has a predetermined length back and forth. The locking protrusions 86a and 86 are inserted into the locking hooks 82h and 83h of the lower plates 83 and 83 'among the locking protrusions 85a, 85'a, 86a and 86'a. 'a) is provided with a pair at each of the inner upper end portions of both sides of the lower casing (84, 84'), and has a predetermined length in front and rear.

A fixing hook 85h is provided on the bottom surface of the support ribs 85 of the lower casings 84 and 84 '. The fixing hook 85h is for fixing the box casings 80 and 80 'installed in the refrigerating chamber 33 to predetermined positions, respectively. The fixing hook 85h is formed of a pair projecting downward from the bottom end of the support rib 85 and preferably has a predetermined elasticity. The fixing protrusions 46 of the fixing piece 45 are selectively inserted into the fixing hook 85h.

Meanwhile, referring to FIG. 7, mounting openings 83s and 83's are formed at the center of the lower plates 83 and 83 '. The mounting openings 83s and 83's are formed by cutting a central portion of the lower plates 83 and 83 'in a rectangular shape. Supporting edges 83a and 83'a are provided at the edges of the mounting openings 83s and 83's. The supporting ends 83a and 83'a are formed by stepping down a portion of the lower plates 83 and 83 'corresponding to the edges of the mounting openings 83s and 83's.

The moisture-permeable materials 90 and 90 'are installed in the mounting openings 83s and 83's. The bottom edges of the moisture-permeable materials 90 and 90 'are supported by the support ends 83a and 83'a while being installed at the mounting openings 83s and 83's. The moisture absorbents 90 and 90 'are formed by compressing a porous polymer into a rectangular plate. The moisture-permeable materials 90 and 90 'serves to maintain the relative humidity in the storage spaces 70S and 70'S of the vegetable boxes 70 and 70' at a predetermined value.

To this end, the moisture absorbents 90 and 90 'absorb moisture when the relative humidity in the storage spaces 70S and 70'S of the vegetable boxes 70 and 70' is greater than or equal to a predetermined value. The moisture absorbents 90 and 90 'release moisture absorbed when the relative humidity in the storage spaces 70S and 70'S of the vegetable boxes 70 and 70' is less than or equal to a predetermined value.

Hereinafter, a process in which cold air supplied to the storage box is flowed by the storage box cold air supply structure for the refrigerator according to the preferred embodiment of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

8 illustrates a state in which cold air supplied by a preferred embodiment of the present invention flows.

As shown in the drawing, when the temperature inside the storage space 70S of the first vegetable box 70 is detected by the temperature sensor S to be less than or equal to a predetermined value, the cold air supply port 39 is provided by the damper 41. ) Is opened. At the same time, the fan assembly 43 is driven to transmit the cold air of the freezing chamber 31 to the flow path 50P of the cold air duct 50 through the cold air supply port 39.

The cold air delivered to the flow path 50P of the cold air duct 50 is in communication with the first cold air outlet 52a and the second cold air outlet 52b by the continuous driving of the fan assembly 43. 80'i are supplied to the flow paths 80P and 80'P of the first box casing 80 and the second box casing 80 ', respectively. At this time, the same amount of cold air is supplied to the flow paths 80P and 80'P of the first box casing 80 and the second box casing 80 'by the cold air guide 52g of the cold air duct 50, respectively. Will be.

That is, about half of the cold air delivered to the flow path 50P of the cold air duct 50 through the cold air supply port 39 flows through the upper flow path 50Pa partitioned by the cold air guide 52g to the first air. It is transmitted to the flow path 80P of the first box casing 80 through the cold air outlet 52a. The second half of the cold air delivered to the flow path 50P of the cold air duct 50 through the cold air supply port 39 flows through the lower flow path 50Pb partitioned by the cold air guide 52g. It is transmitted to the flow path 80'P of the second box casing 80 'through the cold air outlet 52b.

The cold air supplied to the flow paths 80P and 80'P of the box casings 80 and 80 'is circulated therein, respectively, and the storage spaces 70S and 70'S of the vegetable boxes 70 and 70' are respectively circulated. The food stored in each is indirectly cooled. Therefore, it is possible to prevent a phenomenon in which the food stored in the storage spaces 70S and 70'S of the vegetable boxes 70 and 70 'is doubled in the smell of other foods contained in cold air or evaporates moisture in the food.

At this time, the moisture-permeable material 90, 90 'absorbs or releases moisture according to the relative humidity inside the storage spaces 70S and 70'S of the vegetable boxes 70 and 70'. Accordingly, the relative humidity in the storage spaces 70S and 70'S of the vegetable boxes 70 and 70 'is maintained at a predetermined value, thereby storing the storage spaces 70S and 70'S of the vegetable boxes 70 and 70'. The amount of water in the food stored in the) can be maintained at a constant level.

Meanwhile, when the temperature inside the storage space 70S of the first vegetable box 70 detected by the temperature sensor S is equal to or greater than a predetermined value, the cold air supply port 39 is provided by the damper 41. ) Is shielded. At the same time, the fan assembly 43 is also stopped. Therefore, since the cold air is no longer supplied to the flow paths 80P and 80'P of the box casings 80 and 80 ', the storage spaces 70S and 70'S of the vegetable boxes 70 and 70'. The phenomenon that the food stored in the container is overcooled is prevented.

Next, another embodiment of a storage box cold air supply structure for a refrigerator according to the present invention will be described in detail with reference to the accompanying drawings. The same configuration as the above-described embodiment will use the reference numerals of FIGS. 2 to 8 as it is.

9 shows a main part of another embodiment of a storage box cold air supply structure for a refrigerator according to the present invention.

In the present embodiment, the amount of cold air supplied to the first box casing 80 and the second box casing 80 ′ through the first cold air outlet 52a and the second cold air outlet 52b to the cold air duct 50. The adjusting knob 100 is provided to adjust. The control knob 100 selectively adjusts the opening area of the first cold air outlet 52a and the second cold air outlet 52b.

To this end, a guide slot 51s is formed in the duct body 51 of the cold air duct 50. The guide slots 51s are formed on both sides in the longitudinal direction adjacent to one surface of the duct body 51 in which the first cold air outlet 52a is formed, that is, on the front and rear surfaces of the cold air duct 50. The guide slot 51s is formed to extend in the longitudinal direction such that an upper end thereof is adjacent to the first cold air outlet 52a. The lower end of the guide slot 51s is rounded toward the second cold air outlet 52b. Therefore, the guide slot 51s is formed in a J shape as a whole.

The adjusting knob 100 is made of a flexible material and moves along the guide slot 51s. In addition, the adjustment knob 100 is provided with an operation unit (not shown) that is exposed to the front through the guide slot provided on the front surface of the duct body 51 of the guide slot 51s. The operation part is a part which the user grasps by hand to move the adjustment knob 100 along the guide slot 51s. The regulating knob 100 has its front and rear ends in close contact with the inside of the front and rear surfaces of the duct body 51, and moves along the guide slot 51s while the first cold air outlet 52a and the second cold air outlet 52b. ) Are sized to shield all of them.

Hereinafter, a process of controlling cold air according to another embodiment of a storage box cold air supply structure for a refrigerator according to the present invention will be described in detail with reference to the accompanying drawings.

10 and 11 illustrate a process in which cold air is controlled by another embodiment of a storage box cold air supply structure for a refrigerator according to the present invention.

First, as shown in FIG. 10, when the second vegetable box 70 ′ is not used, the adjusting knob 100 is moved downward along the guide slot 51s. Therefore, since the second cold air outlet 52b is shielded by the control knob 100, the cold air is not supplied to the flow path 80 ′ P of the second box casing 80 ′. At this time, since the first cold air outlet 52a is open, cold air is supplied to the flow path 80P of the first box casing 80.

As shown in FIG. 11, when the first vegetable box 70 is not used, the adjusting knob 100 is moved upward along the guide slot 51s. Therefore, since the first cold air outlet 52a is shielded by the adjusting knob 100, no cool air is supplied to the flow path 80P of the first box casing 80. However, since the second cold air outlet 52b is open, cold air is supplied to the flow path 80'P of the second box casing 80 '.

On the other hand, when using all the vegetable boxes 70, 70 ', the adjusting knob 100 is located as shown in FIG. Accordingly, both the first cold air outlet 52a and the second cold air outlet 52b are opened to cool the air in the flow paths 80P and 80'P of the first box casing 80 and the second box casing 80 '. Are all supplied.

Within the scope of the basic technical spirit of the present invention as well as many other modifications are possible to those skilled in the art, the scope of the present invention should be interpreted based on the appended claims. .

According to the refrigerator storage box cold air supply structure according to the present invention configured as described above is expected the following effects.

According to the present invention, the food stored in the storage box is indirectly cooled by cold air flowing inside the upper cover provided above the storage box. Therefore, the odor of other foods stored in the refrigerating compartment or the evaporation of moisture of the foods can be prevented from being stored in the storage box, and at the same time, the phenomenon of weak cooling or overcooling is prevented. Longer storage can be kept fresh.

In addition, a cold air guide is provided in the cold air duct in which cold air for indirect cooling of the storage box flows to distribute the cold air evenly according to the number of storage boxes. Therefore, since the cool air is evenly supplied to the plurality of storage boxes, the refrigerator can be used more efficiently.

Claims (4)

A cold air duct installed at one side of the refrigerating chamber and having a flow path through which cold air supplied from an external cold air supply source flows through a cold air supply opening formed at one side of the refrigerating chamber; At least one pair of upper covers for shielding a storage space of a storage box installed in the refrigerating compartment and having a flow path through which cold air supplied from the cold duct flows; It is configured to include, The cold air duct storage box cold air supply structure, characterized in that the cold air duct is provided with a cold air guide for partitioning the cold air duct in a predetermined number in order to supply cold air to the upper cover. The method of claim 1, The cold air duct is installed on one side of the refrigerator compartment side of the barrier partitioning the freezer compartment and the refrigerator compartment, Refrigerating air supply structure for a refrigerator, characterized in that the cold air in the freezer compartment is transmitted to the flow path of the cold air duct through the cold air supply port formed in the barrier. The method of claim 2, The cold air duct, A duct body having a hexahedron shape in which one surface in a longitudinal direction is opened to form a flow path between an inner surface and the barrier; It is provided on the edge of the duct body is composed of a flange portion in close contact with one side of the barrier, The cold air guide is provided in the duct body, the refrigerator compartment storage box cold air supply structure characterized in that the flow path of the cold air duct is partitioned so as to have the same area communicating with each other. The method of claim 3, wherein The duct main body is provided with a first cold air outlet and a second cold air outlet on one side of the upper surface and the bottom of the longitudinal direction, respectively, The cold air guide is horizontally provided in the duct main body corresponding to the cold air supply port so as to partition the flow path of the cold air duct up and down so that the area communicating with the cold air supply port is equal to each other up and down. Cold air supply structure.

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