KR100213631B1 - Refrigerator having air distribution apparatus - Google Patents

Abstract

The present invention relates to a refrigerator having a cooling chamber for accommodating food, comprising: a cold air duct provided on a side wall of the cooling chamber to guide the flow of cold air and having at least one cold air outlet opening toward the cooling chamber; A plurality of vertically distributing blades having axes parallel to the cold air discharge port in a horizontal direction; An interlocking member which is hinged with each of the vertically distributing wings and is capable of elevating, and interlocking the vertically distributing vanes integrally with each other within a predetermined range during the elevating; A pair of guides which support both end portions of the interlocking member to move up and down; A stop member interposed in the guide part in a horizontal direction to move a position allowing the lifting of the interlocking member and a position for supporting the interlocking member in the axial direction to stop the lifting; It includes a drive unit for moving the interlocking member. As a result, the interlocking member can be simply stopped if necessary, thereby preventing damage caused by an external shock.

Description

Refrigerator with cold air distributor

The present invention relates to a refrigerator having a cold air distribution device, and in particular, to maintain or release an interlocking member which is installed at a cold air discharge port and vertically rotates a vertically distributed wing that distributes cold air uniformly supplied into a cooling chamber. A refrigerator having a cold air distribution device.

7 is a side cross-sectional view of a refrigerator having a cold air distribution device that has been filed with the applicant. As can be seen from this figure, the refrigerator 101 having the conventional cold air distribution device 50 is divided into a freezing compartment 2 and a refrigerating compartment 3 by an intermediate partition 5 in a substantially rectangular main body. A pair of cooling chambers is provided, and opening / closing doors 6 and 7 are provided on the opening fronts of the respective cooling chambers 2 and 3, respectively. In the main body, a refrigeration system including a compressor 11, a condenser and a freezer compartment evaporator 12a and a refrigerator compartment evaporator 12b (not shown) is installed. The cold air generated in each of the evaporators 12a and 12b is supplied to each cooling chamber by the freezing chamber fan 13a or the refrigerating chamber fan 13b.

On the other hand, in the rear wall of the refrigerating chamber 3, a cold air duct 15 is provided in which cold air from the refrigerating chamber evaporator 12b is blown by the refrigerating chamber fan 13b and flows therein. The cold air distribution device 50 is provided in the vertical direction. On the rear wall surface of the refrigerating chamber 3, a cold air discharge port 16 through which cold air from the cold air duct 15 is discharged to the refrigerating chamber 3 is formed, and the cold air distribution device 50 guides the supplied cold air to the cold air discharge port. It supplies to the refrigerating compartment 3 through 16. At the rear of the cold air duct 15, a circulation duct 17 connecting the refrigerating chamber 3 and the refrigerator compartment evaporator 12b is formed to be isolated from the cold air duct 15. The cold air which cooled the refrigerator compartment 3 returns to the refrigerator compartment evaporator 12b via this circulation duct 17. As shown in FIG.

As shown in more detail through FIG. 8, the cold air distribution device 50 is installed in the cold air duct adjacent to the cold air discharge port 16 and vertically distributing wings 51 capable of rotating up and down, and the vertically distributing wing 51. ) Is configured to drive up and down. The up-and-down distributing blade 51 has a substantially wedge shape, and rotating pins 53 extending laterally are formed at both end portions thereof. The duct cover 40 having the cold air discharge port 16 is provided with flange portions 45 extending from the rear surface in the orthogonal direction on both side longitudinal edges thereof, and the upper and lower distribution blades 51 of these flange portions 45 are provided. The rotation hole 47 which accommodates the rotation pin 53 is provided mutually opposing. The vertically distributing blade 51 in which the two rotating pins 53 are accommodated in the opposite rotating holes 47 is rotated vertically in front of the cold air discharge port 16.

The drive unit includes a rotation shaft 31 installed in the vertical direction on the rear side of the vertically distributed blade 51 in the cold air tuck, a drive cam 63 installed on the rotation shaft 31, and a drive motor for rotating the rotation shaft 31 ( 35) and an interlocking member 61 which is hinged to each of the vertically distributing blades 51 and lifts and interacts with the driving cam 63 in accordance with the rotation of the rotary shaft 31. The rotary shaft 31 is installed along the longitudinal direction of the cold air duct 15 on the rear side of the upper and lower distribution wings 51, and the driving motor 35 is coupled to the upper end thereof, and the lower end thereof is the lower side of the duct cover 40. It is rotatably fixed to the edge. The rotating shaft 31 is provided with a drive cam 63 for rotating the vertical dispensing blade 51 in the vertical direction. The drive cam 63 has a cam body 66 which is installed coaxially to the rotation shaft 31, and the cam body 66 is formed with a cam groove 65 having a camp profile that is elevated along the cylindrical surface thereof. have.

The interlocking member 61 has a cylindrical shape, and is disposed in parallel with the rotation shaft 31 between the duct cover 40 and the vertically distributing blade 51. The interlocking member 61 is provided with a plurality of working rings 62 protruding from the outer circumferential surface toward the vertically distributing blade 51 along the axial direction. Correspondingly, an actuating pin 55 fitted to the acting ring 62 is formed in parallel with the pivot pin 53 on the X-shaped vertically distributing wing 51. The working ring 62 of these interlocking members 61 and the working pins 55 of the vertically distributing blade 51 are hinged to each other, whereby each of the vertically distributing wings 51 is elevated by the interlocking member 61. As a result, the working pin 55 can be pivoted up and down integrally with the shaft.

On the outer circumferential surface of the interlocking member 61 corresponding to the drive cam 63, a working projection 67 extending toward the drive cam 63 is provided. This working projection 67 meshes with the cam groove 65 of the cam body 66 and moves up and down along the cam groove 65 of the cam body 66 when the drive cam 63 rotates. As a result, the interlocking member 61 in which the action protrusion 67 is integrally raised and lowered, and at this time, the hinged vertically distributing wings 51 are vertically rotated integrally. At this time, cold air from the cold air duct 15 is distributed in the vertical direction in accordance with the rotational position of the vertically distributing blade 51. On the other hand, the rotating shaft 31 is provided with a plurality of coaxially arranged left and right wings 33 along the axial direction. These left and right distribution wings 33 distribute the cold air from the cold air duct 15 in the left and right directions of the refrigerating chamber. This can be maintained in a uniform temperature distribution in the refrigerator compartment.

By the way, in the refrigerator 101 having the conventional cold air distribution device 50, the flow of the device may occur during the loading and transfer, as well as during the transport or conveyed to the user after the completion of manufacturing, at this time, the cold air distribution device There is a problem that the interlocking member of the 50 is excessively flowed and broken in severe cases. Thus, in the cold air distribution device 50, the duct cover 40 from the outer circumferential surface along the axis of the elevating guide portion 70, that is, the interlocking member 61, which guides the elevating of the interlocking member 61 and prevents its own rotation. Has a plate-shaped guide piece 69 extending toward and a guide portion 49 formed on the rear surface of the duct cover 40 for allowing the guide piece 69 to be lifted and lowered, thereby slightly reducing the flow of the interlocking member. However, the elevating guide portion 70 also can not prevent the flow of the interlocking member 61 in the vertical direction, the above problems still occur.

Accordingly, the object of the present invention is to allow the interlocking member of the cold air distribution device to be stopped or released as necessary, in consideration of such a conventional problem, so that it may be flowed by an impact from the outside during transportation or stoppage of the device. It is to provide a refrigerator having a cold air distribution device to prevent damage to the interlocking member to solve the user's complaints and improve the reliability of the device.

1 is a front view of a refrigerator having a cold air distribution wing,

2 is a side cross-sectional view of FIG.

3 is an exploded perspective view of a cold air distribution device according to the present invention;

4 is an assembled rear view of FIG. 3;

Figure 5 is a side cross-sectional view of Figure 4, a state in which the interlocking member is stopped;

Figure 6 is a side cross-sectional view of Figure 4, a state in which the lifting and lowering of the interlocking member,

7 is a side cross-sectional view of a refrigerator having a conventional cold air distribution device,

8 is an exploded perspective view of a conventional cold air distribution device.

Explanation of symbols for main parts of the drawings

2, 3: Cooling chamber 5: Intermediate bulkhead

6, 7: door 12a, 12b: evaporator

13a, 13b: blower fan 15: cold air duct

16: cold air outlet 20: duct housing

21: duct member 28, 29: flange portion

30: cold air distribution device 31: rotating shaft

33: left and right distribution wings 35: drive motor

40: cold air grill member 51: upper and lower distribution wings

55: action pin 61: interlocking member

63: elevating drive cam 65: cam groove

67: action projection 81: guide

83: receiving groove 85: stop member

According to the present invention, in the refrigerator having a cooling chamber for accommodating food, the cold air provided on the side wall of the cooling chamber to guide the flow of cold air, and having at least one cold air discharge opening opened toward the cooling chamber. Ducts; A plurality of vertically distributing blades having axes parallel to the cold air discharge port in a horizontal direction; An interlocking member which is hinged with each of the vertically distributing wings and is capable of elevating, and interlocking the vertically distributing vanes integrally with each other within a predetermined range during the elevating; A pair of guides which support both end portions of the interlocking member to move up and down; A stop member interposed in the guide part in a horizontal direction to move a position allowing the lifting of the interlocking member and a position for supporting the interlocking member in the axial direction to stop the lifting; It is achieved by a refrigerator comprising a drive unit for moving the interlocking member.

Here, the cold air duct, and the duct cover is provided with the cold air outlet; It may be configured to include a duct cover 40 member that is coupled at a predetermined interval to form a flow path of cold air between the duct cover, wherein the pair of guides in the upper and lower back of the duct cover Each protrudes and has a receiving groove for movably receiving the distal end of the interlocking member; The stop member may be simply configured to penetrate the duct cover to enter and exit the receiving groove of the guide portion.

And, provided between the pair of guides, it may be configured to further comprise a sliding guide for guiding by sliding the lifting of the interlocking member, the sliding guide portion, a predetermined length along the axial direction of the interlocking member A slider formed in the section; It may comprise a sliding rail having a sliding groove for slidingly receiving the slider on the rear surface of the duct cover.

On the other hand, the drive unit, the rotating shaft rotatable in the vertical direction on the rear side of the cold air discharge port; A drive motor for the rotation shaft; It is formed coaxially to the rotating shaft to rotate integrally, it can be configured to include a drive cam for lifting the interlocking member during rotation. At this time, the drive cam, and the cam body diameter-expanded in the radial direction of the rotating shaft; A cam groove having a camping profile that continuously descends on the cylindrical surface of the cam body; The cam groove is preferably configured to move along the camp profile when the cam body rotates by engaging the working protrusion protruding from the interlocking member.

More preferably, the rotary shaft may be installed coaxially rotating left and right wing, the drive motor may be composed of a stepping motor capable of forward and reverse rotation and stop angle control.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In this case, the same reference numerals are used for the same configurations and the same names as in the prior art for ease of explanation.

1 is a front view of a refrigerator having a cold air distribution device according to the present invention, Figure 2 is a side cross-sectional view of FIG. The refrigerator 1 having the cold air distribution device as seen in these figures is, as described with reference to FIGS. 7 and 8 in the related art, by the freezer compartment 2 and the refrigerating compartment (2) by an intermediate partition 5 in a substantially rectangular body. A pair of cooling chambers divided by 3) is provided, and opening / closing doors 6 and 7 are respectively provided on the front surface of each of the cooling chambers 2 and 3.

The refrigerator compartment 3 is provided with a plurality of shelves 8 for placing food to partition the refrigerator compartment 3 into a plurality of food storage areas in the vertical direction. The special refrigeration chamber 18 used for storing the food suitable for a specific temperature range is formed in the upper side of the refrigerating chamber 3, and the vegetable chamber 19 for storing vegetables is formed in the lower side of the refrigerating chamber 3. As shown in FIG.

In the main body 4, a compressor 11, a condenser, a freezer compartment evaporator 12a, and a refrigerator compartment evaporator 12b, which are not shown, are installed to perform a refrigeration cycle, and cold air is generated in each of the evaporators 12a and 12b. A freezer compartment fan 13a and a refrigerating compartment fan 13b are installed above the evaporators 12a and 12b to forcibly blow cold air generated in each of the evaporators 12a and 12b to the freezer compartment 2 or the refrigerator compartment 3.

On the rear wall surface of the refrigerating chamber 3, a duct housing 20 is provided which forms a cold air duct 15 that provides a flow path of cold air from the evaporator 12b. The duct housing 20 includes a duct member 21 for forming cold air ducts 15 to insulate cold air insulated, a front plate 23 attached to the front surface of the duct member 21, and a duct member 21. It consists of a seal plate (25) adhered to the back of the) and a partial cylindrical duct cover (40) installed in a form surrounding the cold air distribution device (30) in front of the front plate (23).

The duct cover 40 is provided with cold air outlets 16 opened toward the refrigerating chamber 3 at predetermined intervals along the longitudinal direction thereof. Such a duct cover 40 is provided in the accommodation portion of the front plate 23. The front plate 23 is provided to form a plane substantially the same as the inner wall surface of the refrigerating chamber 3, the duct cover 40 is provided to protrude from the front plate 23 to the inside of the refrigerating chamber (3). Accordingly, the duct cover 40 and the cold air distribution device 30 to be described later in detail protrude slightly from the rear wall surface of the refrigerating chamber 3 as a whole, and the cold air guided by the cold air distribution device 30 has a large discharge angle range. (3) is distributed in.

In addition, the duct cover 40 and the duct member 21 form a cold air duct 15 for guiding the flow of cold air therebetween, and has an unshown receiving portion for accommodating a part of the cold air distribution device 30. The cold air distribution device 30 is provided in the cold air duct 15. The cold air distribution device 30 supplies the cold air blown into the cold air duct 15 by the cold room fan 13b into the cold room 3. At the rear of the cold air duct 15, a circulation duct 17 connecting the refrigerating chamber 3 and the refrigerator compartment evaporator 12b is formed to be isolated from the cold air duct 15. The cold air which cooled the refrigerator compartment 3 returns to the refrigerator compartment evaporator 12b via this circulation duct 17. As shown in FIG.

On the other hand, Figure 3 is an exploded perspective view of the cold air distribution device of the present invention, Figure 4 is an assembled rear view of FIG. As can be seen from these figures, the present cold air distribution device 30 includes a vertically distributing wing 51 and a vertically distributing wing 51 which are installed adjacent to the cold air discharging port 16 in the cold air duct and which can be rotated up and down. It is comprised by the drive part which rotates up and down. The vertically distributing blade 51 has a front projection 57 and a back cutout 59 corresponding to the cold air discharge port 16, and is formed in a substantially arcuate shape with the attachment of the projection 57 cut out. And rotation pins 53 extending laterally from the both end parts are provided.

On the other hand, the duct cover 40 having the cold air discharge port 16 is provided with flange portions 45 extending in the orthogonal direction from the rear surface at both longitudinal longitudinal edges thereof, and the turning pins 53 are provided on these flange portions 45. The rotation hole 47 which accommodates this is provided so that it may mutually oppose. The vertically distributing blade 51 in which the two rotating pins 53 are respectively accommodated in the opposing rotating holes 47 is capable of rotating up and down at the front surface of the cold air discharge port 16. In this embodiment, three vertically distributing blades 51 having such a configuration are provided along the vertical direction of each cold air discharging port 16.

The drive unit includes a rotation shaft 31 installed in the vertical direction on the rear side of the vertically distributed blade 51 in the cold air tuck, a drive cam 63 installed on the rotation shaft 31, and a drive motor for rotating the rotation shaft 31 ( 35) and an interlocking member 61 which is hinged to each of the vertically distributing blades 51 and lifts and lowers in interaction with the drive cam 63 in accordance with the rotation of the rotary shaft 31.

The rotary shaft 31 is installed along the longitudinal direction of the cold air duct 15 on the rear side of the upper and lower distribution wings 51, and the driving motor 35 is coupled to the upper end thereof, and the lower end thereof is the lower side of the duct cover 40. It is rotatably fixed to the flange part 28 formed in the edge part. The drive motor 35 is housed in the motor case at the top of the front plate 23 and is installed. Such drive motor 35, it is preferable to use a stepping motor capable of forward and reverse rotation and control the stop angle position. The rotating shaft 31 is provided with a drive cam 63 for rotating the vertical dispensing blade 51 in the vertical direction. The drive cam 63 has a cam body 66 which is installed coaxially to the rotation shaft 31, and the cam body 66 is formed with a cam groove 65 having a camp profile that is elevated along the cylindrical surface thereof. have.

The rotary shaft 31 is further provided with a substantially rectangular plate-shaped left and right blade 33 at predetermined intervals along the axial direction thereof. These left and right distribution wings 33 are formed coaxially with the rotating shaft 33 to rotate integrally, serves to distribute the cold air discharged to the cold air discharge port 16 by flowing the cold air duct 15 to the left and right.

On the other hand, the interlocking member 61 has a cylindrical shape, and is disposed in parallel with the rotation shaft 31 between the duct cover 40 and the vertically distributing blade 51. The interlocking member 61 is provided with a plurality of working rings 62 protruding from the outer circumferential surface toward the vertically distributing blade 51 along the longitudinal direction, respectively. Correspondingly, in the protruding portion 59 of the vertically distributing blade 51, an action pin 55 fitted to the action ring 62 is formed in parallel with the pivot pin 53. The working ring 62 of these interlocking members 61 and the working pins 55 of the upper and lower dispensing blades 51 are hinged to each other, so that the upper and lower distributing wings 51 are lifted by the interlocking member 61. Accordingly, the action pin 55 can be pivoted up and down on the shaft.

On the outer circumferential surface of the vertically distributed blade 51 corresponding to the drive cam 63, a working projection 67 extending toward the drive cam 63 is provided. The extended action protrusion 67 is engaged with the cam groove 65 of the cam body 66 to move up and down along the camp profile. Accordingly, when the rotating shaft 31 is rotated, the working projection 67 is moved up and down along the cam groove 65 of the cam body 66, accordingly the vertically distributed wing hinged by the lifting of the interlocking member 61. 51 will rotate up and down.

On the other hand, the upper and lower portions of the duct cover 40, the guide portion 81 for guiding the lifting of the interlocking member 61 is provided. These guides 81 protrude inward to flange portions 28 and 29 formed to face each other at upper and lower portions of the duct cover 40, respectively, and receive grooves 83 for receiving both end portions of the interlocking member 61, respectively. ) Is provided along the lifting direction of the interlocking member 61. The interlocking member 61 in which both end portions are inserted and accommodated in these receiving grooves 83 is guided to move up and down. Each of the receiving grooves 83 is provided with a stop member 85 which penetrates the plate surface from the front of the duct cover 40 and is inserted in the axial direction of the interlocking member 61 in the transverse direction. The stop member 85 is fixed to the receiving groove 83 so as to be accessible, and the screw portion accommodated in the receiving groove blocks the moving space of the interlocking member 61 to support the interlocking member 61 in the axial direction. As a result, the interlocking member 61 may be stopped. On the other hand, when the stop member 85 is separated from the receiving groove 83, the moving space of the interlocking member 61 is formed to enable the interlocking member 61 to move up and down.

In addition, a sliding guide part 70 is provided between the guide parts 81 to guide the lifting and lowering of the interlocking member 61 and prevent its own rotation. The sliding guide 70 includes a plate-shaped slider 69 extending from the outer circumferential surface toward the duct cover 40 along the axis line of the interlocking member 61, and a duct cover for allowing the slider 69 to be lifted and lowered. The sliding rail 49 formed in the back surface 40 is comprised. The sliding rail 49 is a pair of plate-shaped objects facing each other, and a sliding groove in which the slider 69 is slidably accommodated is provided between them.

5 and 6 are side cross-sectional views of FIG. As can be seen in Figure 5, the interlocking member 61 for rotating the upper and lower distribution blades 51 integrally in the axial direction by the stop member 85 is fastened from the front of the duct cover 40 is received in the guide groove Supported and held down. In this state in which the interlocking member 61 is stopped and maintained, a user or an operator may preferably transport the refrigerator 1, and at this time, even if an external shock or shaking of the refrigerator body occurs, the interlocking member 61 may move. To prevent damage. On the other hand, after arranging the refrigerator 1 at a predetermined operating position, simply releasing the fastening of the stop member 85 from the front side of the duct cover 40, the interlocking member 61 can be seen in FIG. , The state can be elevated. Then, when the power is applied, the refrigeration cycle is operated in accordance with the program to form cold air, the operation of the cold air distribution device 30 is to supply the uniform cold air in the refrigerating chamber.

As described above, in the refrigerator having the cold air distribution device according to the present invention, the interlocking member of the cold air distribution device can be simply stopped or released by using the stop member. Thus, if the interlocking member is held fixed during transportation or stoppage of the device, the interlocking member is prevented from being flown by the impact from the outside so that no breakage occurs. On the other hand, simply releasing the stop member accommodated in the receiving groove makes the interlocking member moveable. When the cold air distribution device is operated in this state, uniform distribution of the cold air discharged into the refrigerating chamber proceeds.

Claims (9)

In the refrigerator having a cooling chamber for receiving food, A cold air duct provided on a side wall of the cooling chamber to guide the flow of cold air and having at least one cold air discharge port opened toward the cooling chamber; A plurality of vertically distributing blades having axes parallel to the cold air discharge port in a horizontal direction; An interlocking member which is hinged with each of the vertically distributing wings and is capable of elevating, and interlocking the vertically distributing vanes integrally with each other within a predetermined range during the elevating; A pair of guides which support both end portions of the interlocking member to move up and down; A stop member interposed in the guide part in a horizontal direction to move a position allowing the lifting of the interlocking member and a position for supporting the interlocking member in the axial direction to stop the lifting; And a driving unit for moving the interlocking member. The method of claim 1, The cold air duct, A duct cover provided with the cold air outlet; And a duct member coupled to the duct cover at a predetermined interval so as to form a flow path of cold air therebetween. The method of claim 1, The pair of guide portions protrude from upper and lower rear surfaces of the duct cover, respectively, and have a receiving groove for movably receiving the distal end of the linkage member; And the stop member penetrates through the duct cover and enters into the receiving groove of the guide part. The method of claim 3, And a sliding guide part provided between the pair of guide parts to guide the lifting and lowering of the interlocking member. The method of claim 4, wherein The sliding guide portion, A slider formed in a predetermined length section along the axial direction of the interlocking member; And a sliding rail having a sliding groove on the rear surface of the duct cover to slidably receive the slider. The method of claim 1, The driving unit, A rotating shaft rotatable vertically to the rear side of the cold air discharge port; A drive motor for the rotation shaft; And a drive cam which is formed coaxially with the rotating shaft and integrally rotates and lifts the interlocking member during rotation. The method of claim 6, The drive cam, A cam body diameter-expanded in the radial direction of the rotating shaft; A cam groove having a camping profile that continuously descends on the cylindrical surface of the cam body; The cam groove is a refrigerator, characterized in that the lifting protrusion along the camp profile when the cam body is rotated in engagement with the action projection protruding from the interlocking member. The method of claim 6, Refrigerator, characterized in that the rotating shaft is installed coaxially rotating left and right distribution wings. The method of claim 6, The drive motor is a refrigerator, characterized in that the stepping motor controllable forward and reverse rotation and stop angle.

Images