KR20070093496A - A cool air supply structure of storage receptacle for refrigerator - Google Patents

Abstract

A chilled air supply structure for a storage box of a refrigerator is provided to control chilled air supply for a path formed in a box casing according to internal temperature of the box casing sensed by a temperature sensor, thereby preventing overcooling of food received in the storage box secured in the box casing. A chilled air supply structure for a storage box of a refrigerator includes one or more box casings(50) movably mounted in a refrigerating compartment and having a mounting space inside for a storage box. A path is formed in each of the box casings so that chilled air supplied from a chilled air supply source via a chilled air supply hole(39) of the refrigerating compartment flows therethrough. A temperature sensor(47) is mounted to each of the box casings for sensing internal temperature of the box casing via a temperature sensing opening(54d) of the box casing. The temperature sensor is mounted to a sensor mounting part(45) of an auxiliary duct(43), which supplies the chilled air to the path via the chilled air supply hole.

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

3 is a perspective view showing a box casing constituting the embodiment shown in FIG.

FIG. 4 is a side cross-sectional view of one side of the box casing constituting the embodiment shown in FIG.

FIG. 5 is a plan view cut away from the top of the embodiment shown in FIG.

Figure 6 is a side cross-sectional view showing a state in which the cold air supplied by the embodiment shown in FIG.

Explanation of symbols on the main parts of the drawings

30: main body 31: freezer

33: refrigerator 35: barrier

37: fixing rail 38: fixing protrusion

39: cold air supply port 41: damper

43: auxiliary duct 44: communication opening

44a: insulation 45: sensor mounting

47: temperature sensor 49: insulation

50: box casing 50S: mounting space

51: upper cover 52: upper plate

52a: protrusion 53: lower plate

53a: protrusion 54: lower casing

54a: contact flange 54b: support rib

54c: support step 54d: temperature sensing opening

55: guide rail 55a: upper guide rail

55b: Lower guide rail 55c: Reinforcing rib

56: support protrusion 57: duct member

58: communication port 58a: heat insulating material

59a, 59b: Cold guide 50P1, 50P2: Euro

50i: cold air outlet 50o: cold air outlet

60: vegetable box 60S: storage space

61: guide rib 63: locking flange

65: duct seat

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 tip is rotated forward and backward of the main body 10 with respect to one end thereof.

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 transmitted 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 be used more economically.

According to a feature of the present invention for achieving the above object, the present invention comprises: at least one box casing is installed in the refrigerating chamber removably, the mounting space is provided in the storage box; A flow path provided in each of the box casings, through which cold air supplied from a cold air supply source flows through a cold air supply port formed at one side of the refrigerating compartment; And a temperature sensor for sensing the temperature inside the mounting space of the box casing; It is configured to include.

One side surface of the refrigerating chamber adjacent to the cold air supply port is provided with an auxiliary duct for supplying cold air delivered through the cold air supply port to the flow path, and the temperature sensor is a sensor installation unit provided on one side of the auxiliary duct Characterized in that it is installed.

A temperature sensing opening is formed at one side of the box casing, and the temperature sensing sensor senses a temperature inside the storage space of the storage box through the temperature sensing opening.

One side of the auxiliary duct adjacent to one side of the box casing is characterized in that the insulating material for preventing condensation is provided.

When the temperature inside the storage space of the storage box detected by the temperature sensor is above a predetermined value, the cold air supply opening is opened, and the temperature inside the storage space of the storage box detected by the temperature sensor is If less than a predetermined value is characterized in that it further comprises a damper for shielding the cold air supply port.

According to the present invention, it is possible to store the food stored in the storage box more fresh and at the same time has the advantage that the cold air can be supplied to the storage box in a simpler configuration.

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 illustrates a preferred embodiment of a storage box cold air supply structure for a refrigerator according to the present invention, and FIGS. 3 to 5 illustrate a box casing constituting the embodiment shown in FIG. 2.

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.

Both sides of the refrigerating chamber 33 is provided with a fixed rail 37 at the bottom, respectively. The fixing rail 37 is for fixing the box casing 50, which will be described below, in a predetermined position in a state of being stored in the refrigerating chamber 33. The fixed rails 37 are formed to have a U-shaped cross section in a direction perpendicular to the longitudinal direction and are provided long in front and rear sides on both sides of the refrigerating chamber 33 to be opened in a direction facing each other.

As enlarged in FIG. 2, fixing protrusions 38 are provided at front and rear ends of the bottom surface of the fixing rail 45, respectively. The fixing protrusion 38 is for fixing the box casing 50 mounted to the refrigerating chamber 33. The fixing protrusions 38 protrude upwards from the front and rear ends of the bottom plate of the fixing rail 37 by a predetermined height, respectively.

At this time, the front surface of the fixing protrusion 38 is provided with a guide surface 38a extending rearward inclined upward with respect to the upper surface of the bottom plate of the fixing rail 37. In addition, a rear surface of the fixing protrusion 38 is provided with a fixing surface 38b extending upwardly orthogonally to an upper surface of the bottom plate of the fixing rail 37.

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.

In addition, 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 selectively selects the cold air supply port 39 according to the temperature inside the storage space 60S of the vegetable box 60 to be described below, which is sensed by the temperature sensor 47 to be described below. It acts to open and close. That is, the damper 41 opens the cold air supply port 39 only when the temperature inside the storage space 60S of the vegetable box 60 is greater than or equal to a predetermined value.

An auxiliary duct 43 is provided on one surface of the barrier 35 forming one side of the refrigerating chamber 33. The auxiliary duct 43 serves to communicate the cold air supply port 39 with the cold air inlet 50i to be described below. Although not shown, the auxiliary duct 43 may be fixed to the barrier 35 by a separate fastener or the like.

The auxiliary duct 43 is provided with a plurality of communication openings 44. The communication opening 44 is formed by cutting one side of the auxiliary duct 43 into a lattice shape. The communication opening 44 is in close contact with the left surface of the box casing 50 adjacent to the cold air inlet 50i.

One surface of the auxiliary duct 43 corresponding to the edge of the communication opening 44 is provided with a heat insulating material (44a). The heat insulator 44a is for preventing condensation due to cold air of the freezing compartment 31 which is relatively low temperature transmitted through the cold air supply port 39.

In addition, the auxiliary duct 43 is provided with a sensor installation unit 45. The sensor installation part 45 is formed by cutting a part of the auxiliary duct 43. One surface of the sensor installation part 45 is positioned to correspond to the temperature sensing opening 54d of the box casing 50.

The sensor installation unit 45 is provided with a temperature sensor 47. The temperature sensor 47 serves to detect the temperature inside the storage space (60S) of the vegetable box (60). That is, the temperature sensor 47 detects the temperature of the box casing 50 that is in close contact with the sensor installation unit 45 while being installed in the sensor installation unit 45, thereby substantially storing the storage space of the vegetable box 60 ( 60S) It senses the temperature inside.

One surface of the sensor installation unit 45 is provided with a heat insulating material (49). The heat insulating material 49 serves to prevent condensation of the sensor installation part 45 in the same manner as the heat insulating material 44a of the communication opening 44. In addition, the heat insulating material 45a is in close contact with the left surface of the box casing 50 adjacent to the temperature sensing opening 54d, so that the temperature sensor 47 is inside the storage space 60S of the vegetable box 60. It also serves to detect the temperature more accurately.

On the other hand, the box casing 50 is installed in the lower portion of the refrigerating chamber 33 to be retractable. Hereinafter, the lower part of the refrigerating chamber 33 in which the box casing 50 is installed is referred to as a vegetable chamber for convenience. In the illustrated embodiment, one box casing 50 is installed in the vegetable chamber, but two or more box casings may be installed. However, when a plurality of box casings are installed as described above, the cold air supply holes 39 may be provided as many as the number of box casings.

The mounting space 50S is provided inside the box casing 50. In the mounting space 50S of the box casing 50, the vegetable box 60 is installed to be withdrawn. The box casing 50 serves to indirectly cool the food stored in the storage space 60S of the vegetable box 60. The box casing 50 is composed of an upper cover 51 and a lower casing 54.

As shown in FIG. 4, the upper cover 51 includes an upper plate 52 and a lower plate 53. The upper plate 52 forms the upper surface and the front upper end of the box casing 50. The lower plate 53 is installed in the lower casing 54 corresponding to the lower side of the upper plate 52. The upper plate 52 and the lower plate 53 are each formed in a rectangular plate shape, and the lower plate 53 has a smaller front and rear length and left and right widths as compared with the upper plate 52.

The lower casing 54 is formed in a hexahedral shape in which the front part and the upper part are opened to correspond to both side surfaces, the rear surface, and the bottom surface of the vegetable box 60. At both ends of the lower casing 54, a contact flange 54a extending in both directions or downwards is provided. The back surface of the engaging flange 63 of the vegetable box 60 is in close contact with the front of the close contact flange (54a).

3 and 4, support ribs 54b are provided at upper ends of both sides of the lower casing 54. The support ribs 54b are formed by bending upper ends of both side surfaces of the lower casing 54 to the outside. The bottom edge of the upper plate 52 is supported on the upper surface of the support rib 54b.

A support step 54c is provided on the rear surface of the lower casing 54. The support step portion 54c is formed by the rear end of the lower casing 54 being stepped backward. The rear end of the bottom surface of the lower plate 53 is supported by the support step 54c of the lower casing 54.

A temperature sensing opening 54d is provided at one side of the left side of the lower casing 54 in the drawing. The temperature detecting opening 54d communicates the temperature detecting sensor 47 with the mounting space 50S so that the temperature detecting sensor 47 accurately measures the temperature inside the storage space 60S of the vegetable box 60. It is intended to be detectable.

In addition, support rollers 50r are provided at both inner side ends of the lower casing 54, respectively. The support roller 50r serves to guide the movement of the moving roller 60r and the guide rib 61 to be described below in the process of putting the vegetable box 60 in and out of the mounting space 50S.

Guide rails 55a and 55b are respectively provided on both side surfaces of the lower casing 54 corresponding to the rear of the support roller 50r. The moving roller 60r slides along the guide rails 55a and 55b while the vegetable box 60 is withdrawn from the mounting space 50S, and the guide rib 61 is the guide rail 55a. It moves along 55b.

The guide rails 55a and 55b each include an upper guide rail 55a and a lower guide rail 55b which are formed to be inclined upward at a predetermined angle toward the front, that is, at the same angle as the guide rib 61. Therefore, the moving roller 60r substantially slides along the upper surface of the lower guide rails 55a and 55b. The guide rib 61 is substantially moved along the space between the upper guide rail 55a and the lower guide rail 55b.

The upper guide rail 55a and the lower guide rail 55b are spaced up and down by a predetermined distance. A plurality of reinforcing ribs 55c are provided on an upper surface of the upper guide rail 55a and a lower surface of the lower guide rail 55b. The reinforcing rib 55c extends upwardly or downwardly inclined at a predetermined angle from an upper surface of the upper guide rail 55a and an upper surface of the lower guide rail 55b, respectively, so that the upper guide rail 55a and the lower guide rail. It serves to reinforce (55b).

In addition, a pair of locking projections 52a and 53a are provided at both end portions of the upper plate 52 and the lower plate 53, respectively. The locking protrusions 52a and 53a are provided in pairs at both ends of the bottom surfaces of the upper plate 52 and the lower plate 53 at predetermined intervals. The locking protrusions 52a and 53a are formed to have a relatively smaller thickness than the upper plate 52 and the lower plate 53.

The lower casing 54 is provided with hook hooks 54h and 54h '. The hooking hooks 54h and 54h 'are provided with the upper and lower plates 52 and 53 in the state where the upper and lower sides of the lower casing 54 are supported by the upper and supporting step 54c, respectively. 52a) 53a are inserted respectively. To this end, the hook hooks 54h and 54h 'are formed in a c-shape opening toward the front. In addition, the locking protrusions 52a and 53a are inserted into the locking hooks 54h and 54h ', so that the upper cover 51, that is, the upper plate 52 and the lower plate 53, is connected to the lower casing ( 54).

A locking hook 54h into which the locking protrusion 52a of the upper plate 52 is inserted among the locking hooks 54h and 54h 'is provided at front and rear ends of the outer surface of the support rib 54b. In addition, the locking protrusions 54h 'into which the locking protrusions 53a of the lower plate 53 are inserted among the hooking hooks 54h and 54h' are provided at front and rear ends of both side inner side upper ends of the lower casing 54.

A pair of support protrusions 56 are provided on the bottom of the support ribs 54b corresponding to the upper ends of both side surfaces of the lower casing 54, respectively. The support protrusion 56 is for fixing the box casing 50 mounted in the refrigerating compartment 33 to a predetermined position. The support protrusion 56 protrudes downward from the bottom end of the support rib 54b.

In addition, a front surface of the support protrusion 56 is provided with a support surface 56a extending downwardly orthogonally to the bottom surface of the support rib 54b. The rear surface of the fixing protrusion 38 is provided with a sliding surface 56b extending rearward inclined upward with respect to the bottom surface of the support rib 54b.

In the state where the box casing 50 is mounted in the refrigerating chamber 33, the support protrusion 56 passes over the fixing protrusion 38. At this time, the sliding surface 56b of the support protrusion 56 slides along the guide surface 38a of the fixing protrusion 38 in a state in which the sliding surface 56b is in close contact with the guide surface 38a of the fixing protrusion 38. In addition, the box casing 50 is mounted on the refrigerating chamber 33 by the fixing surface 38b of the fixing protrusion 38 and the supporting surface 56a of the supporting protrusion 56 close to each other. 50) will not be withdrawn.

Meanwhile, as shown in FIG. 3, a cold air inlet 50i is provided at one side of the left side of the box casing 50. The cold air inlet 50i communicates with the cold air supply port 39 by the communication opening 44 of the auxiliary duct 43 in the state where the box casing 50 is mounted in the refrigerating chamber 33. Preferably, the cold air inlet 50i is formed in the same shape and size as the cold air supply port 39 and the communication opening 44. The cold air inlet 50i serves as an inlet zone through which cold air is supplied to the first passage 50P1 to be described below.

A first flow path 50P1 is provided on the left side of the box casing 50 in the drawing. The first flow path 50P1 is provided at a position corresponding to the cold air supply port 39 with the box casing 50 installed in the refrigerating chamber 33. Cold air of the freezing chamber 31 supplied through the cold air supply port 39 flows through the first flow path 50P1. The cold air flowing through the first flow path 50P1 is transferred to the second flow path 50P2 to be described below.

In order to form the first flow path 50P1, the duct member 57 is fixed inside the left side of the box casing 50. The duct member 57 is formed in a hexahedral shape in which one side surface and the upper surface in the longitudinal direction facing the inner side of the left side of the box casing 50 are opened.

In a state where the duct member 57 is fixed inside the left side of the box casing 50 in the drawing, the cold air inlet 50i is located in an area of the open one side surface of the duct member 57. And the communication port 58 to be described below is located in the area of the upper surface of the opening of the duct member 57. Therefore, the first flow path 50P1 communicates with the cold air inlet 50i and the communication port 58. In the illustrated embodiment, the lower edge portion of the open side surface of the duct member 57 is in close contact with the inside of the left side surface of the lower casing 54 corresponding to the edge of the cold air inlet 50i. And the open upper edge portion of the duct member 57 is in close contact with the bottom surface of the lower plate 53 corresponding to the edge of the communication port 58.

A communication port 58 is provided at the left end of the lower plate 53 so as to communicate with an upper portion of the first flow path 50P1. The communication port 58 is formed by cutting a portion of the left end portion of the lower plate 53 to communicate the first flow path 50P1 and the second flow path 50P2. The communication port 58 serves as a passage through which cold air flowing through the first flow path 50P1 is transferred to the second flow path 50P2.

The upper surface of the lower plate 53 adjacent to the communication port 58 is provided with a heat insulating material (58a). The heat insulating material 58a serves to prevent condensation from being generated by cold air of the freezing chamber 31 having a relatively low temperature flowing through the communication port 58 to the second flow path 50P2.

Meanwhile, referring to FIGS. 4 and 5, the upper portion of the box casing 50 is formed by a bottom surface of the upper plate 52, an upper surface of the lower plate 53, and an inner upper edge of the lower casing 54. A second flow path 50P2 is provided. Cold air received from the first flow path 50P1 flows through the communication port 58 through the second flow path 50P2.

The rear side of the lower casing 54 is provided with a cold air outlet (50o). The cold air outlet 50o serves as an outlet through which the cold air flowing through the second flow passage 50P2 is discharged to the outside. The cold air outlet 50o is provided at the rear right end of the lower casing 54 in the drawing so that the distance between the cold air inlet 50i and the communication port 58 is maximum. In addition, the cold air outlet (50o) is preferably in communication with the return duct of the refrigerating chamber (33).

A cold air guide is provided inside the second flow path 50P2, that is, between the upper plate 52 and the lower plate 53. The cold air guide serves to guide the cold air delivered to the second flow path 50P2 through the communication port 58 to the cold air outlet 50o.

The cold air guide includes a first cold air guide 59a and a second cold air guide 59b. The first cold guide 59a extends from the left end to the right end of the upper cover 51 corresponding to the opposite side of the cold air outlet 50o with respect to the communication port 58. The second cold air guide 59b is formed at the right end of the upper cover 51 corresponding to the opposite side of the first cold air guide 59a around the communication port 58. Extending toward the rear end of the upper cover 51 adjacent to the left end of the drawing.

However, the shapes of the first cold guide 59a and the second cold guide 59b are not limited thereto. That is, the first and second cold guides 59a and 59b may have any shape as long as they can guide the cold air delivered to the second flow path 50P2 through the communication port 58 to the cold air outlet 50o. It may be formed.

Meanwhile, referring to FIG. 2, the vegetable box 60 is installed in the mounting space 50S. The vegetable box 60 is formed in a hexahedral shape that is open at the top. In addition, a predetermined storage space 60S is provided inside the vegetable box 60. In the storage space 60S of the vegetable box 60, foods such as vegetables or fruits are stored.

The moving rollers 60r are provided at both side outer ends of the vegetable box 60, respectively. The moving roller 60r is guided by the support roller 50r while the vegetable box 60 is withdrawn into the mounting space 50S to guide the guide rails 55a and 55b, that is, the lower guide rail. It slides along 55b.

And guide ribs 61 are provided on both sides of the outer side of the vegetable box 60 corresponding to the rear of the moving roller (60r), respectively. The guide rib 61 protrudes from both sides of the vegetable box 60 to the outside by a predetermined length, and the tip thereof is formed to be inclined upward at a predetermined angle toward the front, that is, the same angle as the guide rail 55. . The upper and lower heights of the guide ribs 61 are determined to be equal to or less than an interval between the upper guide rails 55a and 55b and the lower guide rail. The guide rib 61 is guided by a cutting machine support roller 50r while the vegetable box 60 is withdrawn into the mounting space 50S to guide the upper guide rails 55a and the lower guide rails 55b. It moves along the space between them.

In addition, both sides of the front end of the vegetable box 60 is provided with a latching flange (63). The back surface of the engaging flange 63 is in close contact with the close contact flange (54a) in the state that the vegetable box 60 is mounted in the mounting space (50S) vegetable box 60 into the interior of the mounting space (50S) This is to prevent the mounting completely.

Duct seating portion 65 is provided at the rear end of the left side in the drawing of the vegetable box (60). The duct seating portion 65 prevents the phenomenon that the vegetable box 60 accommodated in the mounting space 50S is interfered by the duct member 57. Therefore, the vegetable box 60 is prevented from being damaged by the duct member 57 in the process of being mounted in the mounting space (50S). To this end, the duct seating portion 65 has a rear end of the left side in the drawing of the vegetable box 60 corresponding to the shape and thickness of the duct member 57. It is formed by stepping.

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.

6 shows 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 60S of the vegetable box 60 mounted in the mounting space 50S of the box casing 50 is sensed by the temperature sensor 47 below a predetermined value. The cold air supply port 39 is opened by the damper 41. Therefore, the cold air of the freezing chamber 31 is supplied to the first flow path 50P1 of the box casing 50 through the communication opening 44 of the cold air supply port 39, the cold air inlet 50i, and the auxiliary duct 43. do.

Meanwhile, the cold air delivered to the first flow path 50P1 is supplied to the second flow path 50P2 of the box casing 50 through the communication port 58. The cold air delivered to the second channel 50P2 is guided to the cold air outlet 50o by the first and second cold guides 59a and 59b while flowing the second channel 50P2.

As described above, the food stored in the storage space 60S of the vegetable box 60 is indirectly cooled by the cold air flowing through the first passage 50P1 and the second passage 50P2. Therefore, it is possible to prevent a phenomenon in which the smell of other foods contained in the cold air or the water in the food vaporizes in the food stored in the storage space 60S of the vegetable box 60.

When the temperature inside the storage space 60S of the vegetable box 60 detected by the temperature sensor 47 is greater than or equal to a predetermined value, the cold air supply port 39 is shielded by the damper 41. do. Therefore, since cold air is no longer supplied to the first flow path 50P1 of the box casing 50, the phenomenon in which the food stored in the storage space 60S of the vegetable box 60 is overcooled is prevented.

Meanwhile, the duct member 58 is fixed inside the left side of the box casing 50. Therefore, the duct member 58 is located inside the mounting space 50S. By the way, since the duct seating portion 65 corresponding to the shape and size of the duct member 58 is provided on the left side of the vegetable box 60, the vegetable box 60 is the mounting space (50S) The duct member 58 is mounted on the duct seating portion 65 in the state of mounting. Therefore, in the process of the vegetable box 60 withdraw the mounting space (50S), the vegetable box 60 is not interfered by the duct member (58).

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 the cold air flowing through the flow path provided in the box casing. Therefore, the odor of other foods stored in the refrigerating chamber or the evaporation of moisture of the food is prevented from being stored in the storage box, and the phenomenon of weak cooling or overcooling is prevented. It can be stored for a long time.

In addition, cold air is supplied to the flow path by opening the cold air supply port only when the temperature detected by the temperature sensor for detecting the temperature inside the storage space of the storage box is greater than or equal to a predetermined value. Therefore, the refrigerator can be used more economically.

Claims (5)

At least one box casing installed in the refrigerating compartment and having a mounting space in and out of the storage box; A flow path provided in each of the box casings, through which cold air supplied from a cold air supply source flows through a cold air supply port formed at one side of the refrigerating compartment; And A temperature sensor for sensing a temperature inside the mounting space of the box casing; Refrigerator storage box cold air supply structure configured to include. The method of claim 1, One side of the refrigerating compartment adjacent to the cold air supply port is provided with an auxiliary duct for supplying the cold air delivered through the cold air supply port to the flow path, The temperature sensor is a refrigerator storage box cold air supply structure, characterized in that installed in the sensor installation unit provided on one side of the auxiliary duct. The method of claim 2, One side of the box casing is formed with a temperature sensing opening, The temperature sensor is a refrigerator storage box cold air supply structure, characterized in that for sensing the temperature inside the storage space of the storage box through the temperature sensing opening. The method according to any one of claims 1 to 3, Storage box cold air supply structure for a refrigerator characterized in that the insulating material for preventing condensation is provided on one surface of the auxiliary duct adjacent to one side of the box casing. The method of claim 4, wherein When the temperature inside the storage space of the storage box detected by the temperature sensor is above a predetermined value, the cold air supply opening is opened, and the temperature inside the storage space of the storage box detected by the temperature sensor is If less than a predetermined value refrigerator storage box cold air supply structure characterized in that it further comprises a damper for shielding the cold air supply port.

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