KR200217729Y1 - Cold air disperser of refrigerator - Google Patents

Abstract

The present invention relates to a cold air dispersing device of a refrigerator capable of supplying cold air to upper and lower spaces of a storage compartment, and in particular, cold air of a refrigerator to reduce operating noise by preventing a flow of a connection member operating a plurality of vertically dispersing wings. It relates to a dispersing device.

The cold air dispersing apparatus according to the present invention is fixed to the inside of the storage compartment and formed in the center of the cold air outlet communicating with the cold air flow path, the body portion is arranged long and vertically up and down to rotate the cold air discharged to the outlet to the cold air left and right In the cold air dispersing device comprising a rotary blade for dispersing the rotor and a motor for rotating the rotary blade, the cold air dispersing device is made of a hollow circular plate to guide the discharged cold air up and down, and both ends are rotatably coupled to the body parts on both sides of the cold air discharge port A plurality of vertically distributed blades, connecting members connected to each of the vertically distributed blades so as to elevate the vertically distributed blades at the same time, and a cylindrical cam provided on the rotary blade so that the connecting members can be lifted and the spiral groove of the cylindrical cam. A protrusion extending from the connecting member to be coupled, and a movement provided on each of the upper and lower wing blades for connection with the connecting member It includes a hinge and a coupling groove formed in the connecting member for coupling with the movable hinge, characterized in that the flow prevention jaw is formed on both sides of the movable hinge larger than the outer diameter of the movable hinge to prevent the flow of the connecting member.

Description

Cold air disperser of refrigerator

The present invention relates to a cold air dispersing device of a refrigerator, and more particularly, to a cold air dispersing device of a refrigerator having a vertical dispersing wing which is installed in front of a rotary blade to distribute cold air evenly in the vertical direction.

In general, the refrigerator is a device that supplies the cold air generated in the evaporator to the inside of the storage compartment through the cold air flow path, so that the storage compartment can be kept cold.

In the refrigerator, as illustrated in FIG. 1, the freezing compartment 2 above the main body 1 and the lower refrigerating compartment 2 are partitioned by an intermediate wall 1a, and inside the freezing compartment 2 generates cold air. An evaporator 4 is installed. In addition, the upper part of the evaporator (4) is provided with a cold air circulation fan (5) for forcibly blowing the cold air generated by the evaporator (4) to the upper freezing chamber (2) and the lower refrigerating chamber (3), the main body (1) On the inner rear side of the cold air flow path 6 for guiding the flow of cold air is formed so that the cold air circulated to the freezing chamber (2) and the refrigerating chamber (3) is formed.

In addition, a cold air dispersing device 7 is provided on the inner rear surface of the refrigerating chamber 3 having a larger space than the freezing chamber 2 to evenly distribute the cold air supplied to the refrigerating chamber 3 through the frame of the cold air passage 6. The cold air dispersing device 7 includes a rotary blade 8 arranged longitudinally in the cold air passage 6 and a motor 9 for driving the rotary blade 8.

At this time, the rotary blade 8 is a rotary shaft (8a) connected to the motor 9, a dispersion blade (8b) having a predetermined width fixed in the longitudinal direction to the rotary shaft (8a) and a plurality of blades provided in the dispersion blade (8b) Made of the original plate 8c. And the upper end of the rotating shaft (8a) is connected to the motor 9, the lower end is supported rotatably in the lower portion of the cold air flow path (6).

The conventional cold air disperser 7 having such a configuration distributes cold air lowered along the cold air flow path 6 by the operation of the cold air circulation fan 5 to the left and right spaces inside the refrigerating chamber 3 through the rotation of the dispersing blades 8b. Let's go. That is, when the rotary shaft 8a of the rotary blade 8 connected to the motor 9 rotates, the plate-shaped dispersion blades 8b disposed in the longitudinal direction of the rotary shaft 8a rotate to rotate the flow direction of the cold air discharged. Change it.

However, in the conventional cold air dispersing device 7 having such a configuration, since the dispersing blades 8b of the rotary blades for guiding the distribution of cold air are plated together, the discharged cold air is sent only to the left or right space of the refrigerating chamber 3. As a result, there was a problem that the cold air circulation into the upper space and the lower space was not smooth, which made it difficult to maintain the temperature distribution of the refrigerating chamber 3 uniformly.

The present invention is to solve this problem, the object of the present invention is to ensure that the cold air discharged into the inside of the storage chamber through the rotary blades to be discharged in the vertical direction of the storage chamber to maintain the temperature distribution of the storage chamber uniformly. Rather, to provide a cold air dispersing device of the refrigerator so that the cooling operation of the cold air is made quietly.

1 is a cross-sectional view showing a schematic internal configuration of a conventional refrigerator.

2 is a cross-sectional view showing a schematic internal configuration of a refrigerator according to the present invention.

3 is an exploded perspective view showing the configuration of a cold air dispersing apparatus according to the present invention.

Figure 4 is a perspective view showing a connection structure of the vertical dispersion wing and the connecting member of the cold air dispersing apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

10: main body, 12: freezer,

13: refrigerating chamber, 16: evaporator,

17: cold air circulation fan, 18: cold air supply flow path,

30: cold air dispersing device, 31: rotary blade,

32: motor, 33: vertically dispersed wings,

33: movable hinge, 33b: flow barrier,

34: connecting member, 34a: coupling groove,

34b: projection, 40: body portion.

The cold air discharge port is fixed to the inside of the storage compartment so as to disperse the cold air supplied into the storage compartment along the cold air passage inside the cold air dispersing apparatus main body of the refrigerator according to the present invention for achieving the above object. And a rotating blade having a plate-shaped dispersion blade disposed to extend in a vertical direction in a state capable of being rotated at a cold air discharge port in the body portion and having discharged cold air in a horizontal direction. In the cold air dispersing device of a refrigerator including a motor for rotating the rotary blades, the cold air dispersing device is formed in a semi-circular plate shape to guide the cold air discharged disposed in front of the rotary blade in the vertical direction, both ends of the body portion on both sides of the cold air discharge port A plurality of vertically distributed wings that are rotatably coupled, a connecting member rotatably connected to each of the vertically distributed wings so as to elevate the vertically distributed blades at the same time, and the lifting and lowering of the connecting member at the same time the rotation of the rotary blades Cylindrical cams provided on the rotary blades and projections extending from the connecting members to be coupled to the spiral grooves of the cylindrical cams, and cylindrical moving hinges provided on the vertically distributed blades for connecting the connecting members and the vertically distributed blades. And a coupling groove formed in the connection member so as to correspond to the movable hinge. Both sides of the movable hinge is characterized in that the flow preventing jaw is larger than the outer diameter of the movable hinge to support the connecting member to prevent the flow of the connecting member.

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

As shown in FIG. 2, the refrigerator according to the present invention has a storage compartment in which food and the like are stored in the main body 10. The storage compartment is divided into an upper freezing compartment 12 and a lower refrigerating compartment 13 by an intermediate wall 11, and a freezing compartment door 14 and a refrigerating compartment door that open and close them in front of the freezing compartment 12 and the refrigerating compartment 13. 15 are provided respectively.

An evaporator 16 which is a component of a refrigeration cycle is installed on the rear wall of the main body 10 so as to supply cold air into the freezing chamber 12 and the refrigerating chamber 13, and an evaporator 16 above the evaporator 16. Cold air circulation fan 17 for circulating the cold air generated in the is installed. A cold air supply passage 18 is formed in the wall to guide cold air forced by the cold air circulation fan 17 to the freezing chamber 12 and the refrigerating chamber 13, and the freezing chamber 12 is formed on the intermediate wall 11. The cold air return passage 19 is formed to guide the air in the refrigerating compartment 13 to be returned to the evaporator 16 again. At this time, the cold air circulated by the operation of the cold air circulation fan 17 is supplied into the freezer compartment 12 through the cold air outlet 20 formed in the inner rear of the freezer compartment 12, the rest of the cold air supply passage 18 It is supplied to the inside of the refrigerating chamber 13 through.

On the other hand, the cold air dispersing apparatus for distributing the cold air supplied toward the refrigerating chamber 13 through the cold air supply passage 18 evenly in the refrigerating chamber 13 on the inner rear side of the refrigerating chamber 13 having a larger space than the freezing chamber 2. 30 is provided.

The cold air dispersing device 30 is a characteristic configuration of the present invention, the rotary blade 31 and the long and vertically arranged in the interior of the cold air supply passage 18 behind the refrigerating chamber 13, and the rotary blade 31 Motor 32 coupled to the upper portion of the rotary blade 31 to rotate, and disposed in front of the rotary blade 31 to vertically distribute the cold air firstly distributed through the rotary blade 31 in the vertical direction secondary It has a dispersing wing 33 and includes a body portion 40 to which the upper and lower dispersing wings 33, the motor 32, and the rotary wing 31 are coupled.

Referring to FIG. 3, the body part 40 has a cold air outlet 11 formed in a longitudinal direction at the center thereof so as to communicate with the cold air supply passage 18, and is fixed to the inner rear side of the refrigerating chamber 13. Rotating blades 31 are vertically disposed in the cold air discharge port 41 of the body portion 40 and the upper and lower ends are rotatably supported by the body portion (40). The rotary blade 31 has a rotary shaft 31a extending vertically long, and the rotary shaft 31 of the plate-shaped dispersion blade 31b and the dispersion blade 31b disposed in the longitudinal direction of the rotary shaft 31a. A semicircular wing 31c attached obliquely to the surface, and a cylindrical cam 31d having a spiral groove 31e, which is provided at the center of the rotation shaft 31a, is provided. At this time, the dispersing blade 31b, the semi-circular blade 31c, the cylindrical cam 31d is formed integrally with the rotating shaft 31a.

The vertical dispersion wing 33 is composed of a semi-circular plate bent in a bow shape, is disposed in the transverse direction on the front of the cold air discharge port 41, both ends rotatably coupled to the body portion 40 on both sides of the cold air discharge port 41. do. In addition, the vertical dispersion wings 33 are arranged to form a plurality of p-layers in the vertical direction, is connected to each other through the rod-shaped connecting member 34 is arranged long vertically and is configured so that the dehydrator can move in the vertical direction at the same time.

To this end, as shown in FIG. 4, a cylindrical moving hinge 33a is provided at the central portion of each vertical dispersion wing 33 so as to be rotatably connected to the connection member 34. A plurality of coupling grooves 31a are formed so that the movable hinges 33a of the vertical dispersion blades 33 are fitted to each other. And on both sides of the movable hinge 33a of the vertical dispersion blade 33, the flow preventing jaw 33b larger than the outer diameter of the movable hinge 33a so that the connecting member 34 coupled to the movable hinge 33a does not push out to the left or right. Is formed.

In addition, as shown in Figures 2 and 3, the central portion of the connecting member 34, the cylindrical cam 31d of the rotary blade 31 so that the connecting member 34 can be raised and lowered during the rotation of the rotary blade 31. The projection 34 is provided to protrude toward the side and fit into the spiral groove 31e. This causes the connecting member 34 to move up and down through the projection 34a fitted into the spiral groove 31e when the cylindrical cam 31d rotates together with the rotary blade 31, thereby allowing the plurality of vertically distributed blades 33 to move up and down. It is to move repeatedly in the direction. In FIG. 3, reference numeral 35 denotes a cover that is coupled to the front surface of the body portion 40 to protect the vertically dispersed blade 33.

The following describes the operation of the refrigerator equipped with the cold air dispersing device having such a configuration.

When the cold air circulation fan 17 is driven, cold air cooled through the evaporator 16 is supplied into the freezing compartment 12 and the refrigerating compartment 13 through the cold air supply passage 18, and the freezing compartment 12 and the refrigerating compartment 13 are provided. ) Is returned to the evaporator 16 through the return passage 19, that is, the refrigerator keeps the internal spaces of the freezer compartment 12 and the refrigerating compartment 13 at a low temperature while the cold air circulation continues.

Meanwhile, the cold air supplied toward the refrigerating chamber 13 through the cold air supply passage 18 is evenly distributed into the refrigerating chamber 13 through the cold air dispersing device 30. That is, when the rotary shaft 31a of the rotary blade 31 is driven by the driving of the motor 32, the cold air discharged while the plate-shaped dispersion blade 31b rotates is guided to the left and right spaces of the refrigerating chamber 13, At the same time, the semicircular blade 31c attached obliquely to the surface of the dispersion blade 31b rotates to disperse the cold air in some up and down directions.

During this operation, the plurality of vertically distributed blades 33 disposed in front of the rotary blades 31 repeatedly move in the vertical direction in accordance with the lifting motion of the connecting member 34 to guide the cold air discharged upward and downward. do. At this time, the connecting member 34 for moving the vertically dispersed blade 33 is in the state where the projection 34b of the center portion is fitted into the spiral groove 31e of the cylindrical cam 31d, and thus the lifting movement when the rotary blade 31 is rotated. Done. As such, the present invention smoothly performs cold air dispersion in the vertical direction through the vertical blades 33 as well as cold air dispersion in the left and right directions through the rotary blade 31. In addition, at this time, both sides of the coupling groove 34a of the connecting member 34 coupled with the moving hinge 33a of each of the vertical dispersion blades 33 are supported by the flow preventing jaw 33b on both sides of the moving hinge 33a. The shaking of the 34 is prevented, so that a quiet operation is performed.

As described above in detail, the cold air dispersing device of the refrigerator according to the present invention is provided with vertically dispersing vanes moving up and down in front of the rotary blades to supply cold air to the left and right spaces of the refrigerating chamber as well as through the vertically dispersing vanes. By supplying cold air to the upper and lower spaces, there is an effect that can supply the cold air evenly distributed throughout the refrigerating chamber.

In addition, the present invention is because the connecting member for driving the vertical dispersion blade is supported by the flow prevention jaw provided on both sides of the movable hinge of the vertical dispersion blade, the fluctuation of the connection member is prevented, there is an effect that can be quiet cold air dispersion operation.

Claims (1)

A body part having a cold air discharge port 41 fixed to the inside of the storage compartment so as to disperse the cold air supplied into the storage compartment along the cold air supply passage 18 in the main body 10 and communicating with the cold air supply passage in the center thereof ( 40 and a rotary blade having a plate-shaped dispersing blade 31b arranged to extend in the vertical direction in a state capable of rotating in the cold air discharge port 41 of the body portion 40 and dispersing the discharged cold air in the left and right directions ( In the cold air dispersing device of the refrigerator comprising a 31, and a motor 32 for rotating the rotary blade 31, A plurality of vertical dispersion is formed in the shape of a semi-circular plate disposed in front of the rotary blade 31 to guide the discharged cold air in the vertical direction and both ends are rotatably coupled to the body portion 40 on both sides of the cold air outlet (41). A connecting member 34 rotatably connected to each of the vertically dispersing blades so that the blade 33 and the vertically dispersing blades 33 can be simultaneously elevated; and the connecting member simultaneously with the rotation of the rotary blades 31. A projection 34b extending from the connecting member 34 and the connecting member to be coupled to the cylindrical cam 31d provided on the rotary blade 31 and the spiral groove 31e of the cylindrical cam so that the lifting and lowering of the 34 is made. And a movable hinge 33a provided at each of the vertically distributed blades 33 and the connecting member 34 so as to correspond to the movable hinge 33a for the connection between the 34 and the vertically distributed blade 33. It includes a coupling groove (34a), Cooling air dispersing apparatus of the refrigerator, characterized in that the flow preventing jaw (33b) larger than the outer diameter of the movable hinge (33a) is formed on both sides of the movable hinge (33a) to prevent the flow of the connecting member (34).