KR19990043532A - Cold air discharge direction control device of the refrigerator - Google Patents

Abstract

The present invention relates to a cold air discharge direction control device of the refrigerator, the first bracket fixed to the rear of the damper cover is coupled to the rotating fan to rotate in the up and down direction, fixed to one end is inserted into the cam groove of the cam to the rotating fan The bar is fixed, and the cam is press-fitted to the rotation shaft of the drive motor, thereby rapidly controlling the flow direction of the cold air flowing along the cold air flow path to cool down the refrigerated object positioned close to the damper cover and / or the refrigerating chamber door. Of course, by discharging the cold air to have a uniform distribution inside the refrigerator, it is possible to prevent the overcooling of the refrigeration object in advance.

Description

Cold air discharge direction control device of the refrigerator

The present invention relates to a cold air discharge direction control device of the refrigerator, and more particularly, to control the flow direction of the cold air flowing along the cold air flow path of the refrigerator to discharge the cold air in the refrigerator to uniformly discharge the cold air throughout the inside of the refrigerator It relates to a control device.

In general, the refrigerator and the refrigerating chamber of the refrigerator is provided with a fan for forcibly blowing the cold air cooled around the evaporator and the evaporator. The evaporator takes in the latent heat of evaporation while cooling the ambient air while the liquid refrigerant having the lower internal pressure is introduced by the action of the capillary tube.

Then, the low temperature low pressure liquid refrigerant discharged from the evaporator is sent to the compressor again, converted to a high temperature and high pressure gas refrigerant is sent to the compressor. The refrigerant sent to the compressor is liquefied by the condenser and decompressed again in the capillary tube to form a refrigeration cycle.

Conventional control device for controlling the direction of the cold air discharged into the refrigerator while being circulated in the refrigerating cycle, as shown in Figures 1 and 2, the refrigerator body 10 made of a heat insulating structure is a freezing and refrigerating chamber (10a) It is divided into (10b), the front and main body 10, the freezing and refrigerating chamber doors (12, 14) are coupled to open and close to seal the inside of the freezing and refrigerating chamber (10a) (10b), the refrigerating chamber (10a) The shelves 16 are mounted in multiple layers so as to place refrigerated objects such as food.

The machine room 18 at the lower side of the refrigerator main body 10 is provided with a compressor 20 for compressing low-temperature low-pressure gas refrigerant to high temperature and high pressure, and a condenser (not shown) for liquefying the gas refrigerant, and the freezing and refrigerating chamber 10a. On the rear wall of the fan 10b, an evaporator 22 for cooling ambient air while evaporating the gas refrigerant provided from the compressor 20 and a fan 24 for forcibly cooling the cool air into the freezer and refrigerating chambers 10a and 10b are installed. do.

A damper cover 26 having a plurality of discharge holes 26a is integrally installed at the center of the rear wall of the refrigerating chamber 10a, and a drive motor 28 is disposed inside the damper cover 26. The drive motor 28 is fixed by the bracket 30 extending from the damper cover 26.

One end of the rotary shaft 28a press-fitted to the drive motor 28 is fitted to the bottom surface of the damper cover 26, and upper and lower guide fans 32 and 32 'are pressed into the upper and lower portions of the rotary shaft 28a. A plurality of rotary fans 34 are press-fitted between the upper and lower guide fans 32 and 32 '. In addition, the rotary fans 34 are inclined at a predetermined angle so as to discharge cold air to the left and right, and the outer circumferential surfaces of the adjacent rotary fans 34 are adjacent to each other.

In the conventional cold air discharge direction control device configured as described above, when the compressor 20 is operated to cool and store the refrigerated object placed on the shelf 16 mounted in the refrigerator compartment 10b in multiple layers for a long time, the evaporator 22 The cool air flow path is formed between the freezer compartment 10a and the refrigerator main body 10 and the damper 26 while cooling the surrounding air by removing the latent heat of evaporation and rotating the fan 24 at one side of the evaporator 22 at high speed. As it flows along 10c, it discharges through the discharge hole 26a of the damper cover 26.

At this time, the plurality of rotary fans 34 inclined at a predetermined angle to the rotary shaft 28a is rotated by the driving force of the driving motor 28, thereby controlling the flow direction of the cold air flowing along the cold air flow path 10c and the damper. It discharges to the discharge hole 26a of the cover 26.

That is, the cold object is discharged from the left to the right direction with respect to the refrigerated object placed on the shelf 16 to cool the refrigerated object in a short time.

However, since the flow direction of the cold air flowing along the cold air flow path is discharged to the inside of the refrigerator while controlling the flow direction to the left and right by the rotating fan, the cold air concentrates only on the refrigeration object placed on the shelf so as to be close to the damper cover. As it is discharged, not only the supercooling is generated but also the refrigeration object located on the refrigerating chamber door side cannot be cooled in a short time, and thus, there is a problem in that the cold air is not evenly discharged in the refrigerating chamber.

The present invention is to solve the above problems, an object of the present invention is to control the flow direction of the cold air flowing along the cold air flow path up and down to quickly close the refrigeration object positioned to be close to the damper cover and / or the refrigerator compartment door. The present invention provides a refrigerator air discharge direction control apparatus capable of cooling and discharging cold air to have a uniform distribution in the refrigerator, thereby preventing overcooling of the object to be refrigerated.

1 is a longitudinal sectional view showing a cold air discharge direction control apparatus of a conventional refrigerator;

2 is a perspective view of the cold air discharge direction control apparatus shown in FIG.

3 is an exploded perspective view showing a cold air discharge direction control apparatus of a refrigerator according to the present invention;

4 is a longitudinal sectional view showing a state in which a cold air discharge direction apparatus of a refrigerator according to the present invention is applied to a refrigerator.

* Explanation of symbols for main parts of the drawings

50: damper cover 50a: discharge hole

50b: bracket 54,56: first and second brackets

54a, 56a: Hinge Ball 56: Cam

56a: cam groove 58: drive motor

60: rotating fan 60a: locking hole

62: hinge pin 70: fixed bar

72: hook 74: spring

A feature of the present invention for achieving the above object is, the damper cover having a discharge hole is mounted in the center of the rear wall of the refrigerating chamber in which the shelves are installed in a multi-layer, the flow of cold air installed in the rear side of the damper flowing along the cold air flow A cold air discharge direction control apparatus for a refrigerator provided to control a direction, comprising: direction control means coupled to a rear side of the damper cover to be rotatable in an up and down direction to control a flow direction of the cold air; Lifting means fixed to the direction control means for raising and lowering the direction control means; A cam having a cam groove so that the lifting means is fitted; And a drive motor fixed to the damper cover to allow the cam to rotate.

A damper cover rear surface according to the present invention is achieved by fixing a first bracket fixed to the direction control means and a second bracket positioned below the first bracket and perpendicular to the first bracket.

The direction control means according to a preferred embodiment of the present invention is achieved by the hinge pin is a semi-circular rotating fan protruding from both sides to be fitted into the hinge hole formed in the first bracket, respectively.

Lifting means according to a preferred embodiment of the present invention is a hook that is fitted to the cam hole of the cam and the other end is fixed to the locking bar and the fixed bar is fitted into the hinge hole of the second bracket is caught by the locking hole of the rotating fan and It is achieved by being provided with a spring inserted into the other end of the fixed bar to return the fixed bar to the initial position.

Hereinafter, a preferred embodiment of a cold air discharge direction control apparatus of a refrigerator according to the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 are views showing a cold air discharge direction control apparatus according to the present invention, the refrigerator main body 10 is divided into a freezing and refrigerating chamber (10a) (10b), the center of the rear wall of the refrigerating chamber (10b) evaporator ( 22, a damper cover 50 having a plurality of discharge holes 50a is integrally mounted to discharge cold air cooled in the refrigerating chamber 10b, and refrigerated objects such as refrigerated foods are placed in the refrigerating chamber 10b. Shelves 16 are installed in multiple layers to place them, and these shelves 16 are located below the discharge hole 50a.

The first bracket 52 is fixed at equal intervals on the rear surface of the damper cover 50, the second bracket 54 is fixed to the lower portion of the first bracket 52, and the first and second brackets 52 ( 54 are hinge holes 52a and 54a, respectively. The first bracket 52 is fixed to form a right angle with respect to the second bracket 54.

Direction control means is rotatably coupled to the first bracket (52) in the up and down direction so as to control in the flow direction of the cold air discharged through the discharge hole (50a) of the damper cover 50, The lifting means for rotating it in the up and down directions is fixed, and one end of the lifting means is fitted into the cam groove 56a formed at the bottom of the cam 56. The cam 56 is press-fitted into the rotation shaft 58a of the drive motor 58 fixed by the bracket 50b of the damper cover 50.

The direction control means is a semi-circular rotating fan 60 in which the hinge pins 62 protrude to both sides so as to be fitted into the hinge holes 52a respectively formed in the first bracket 52, and is locked to one side of the rotating fan 60. The ball 60a is formed.

The lifting means is formed in the fixing bar 70 and the fixing bar 70, one end of which is fitted into the cam groove 56a of the cam 56, and the other end of which is fitted into the hinge hole 54a of the second bracket 54. It is provided with a hook 72 is caught by the engaging hole (60a) of the rotating fan 60 and the other end of the fixed bar 70 is a spring 74 for returning the fixed bar 70 to the initial position.

Referring to the operation of the cold air discharge direction control device of the refrigerator according to the present invention configured as described above in detail as follows.

After the refrigeration object is placed on the shelf 16 installed in the refrigerator compartment 10b in a multi-layer, the compressor 20 is operated to cool it. The latent heat of evaporation is removed from the evaporator 22 to cool the surrounding air, and the evaporator ( The fan 24 installed at one side of the 22 rotates at high speed and flows cold air along the cold air passage 10c formed between the refrigerator main body 10 and the damper 26.

Thereafter, the cold air flowing along the cold air flow path 10c is controlled by the rotary fan 60 rotatable in the up and down directions, and the cold air flows through the discharge hole 50a of the damper cover 50. It is discharged to the inside. That is, the cam 56 is rotated by the driving force of the drive motor 58 fixed to the bracket 50b, and the fixing bar 70 fitted into the cam groove 56a formed thereon moves up and down along the cam groove 56a. Done.

The rotating fan 60 fixed by the fixing bar 70 and the hook 72 rotates up and down about the hinge pin 62 to discharge cold air up and down, thereby discharging the discharge hole 50a. Cold air discharged through the uniform distribution in the refrigerating chamber (10b) to cool the refrigeration object quickly, as well as to prevent overcooling. At this time, the fixing bar 70 fitted into the hinge hole (54a) of the second bracket 54 is to perform the above operation repeatedly while returning to the initial state by the spring (74).

As described above, according to the cold air discharge direction control apparatus of the refrigerator according to the present invention, by controlling the flow direction of the cold air flowing along the cold air flow path up and down, the refrigerated object positioned to be close to the damper cover and / or the refrigerator compartment door. In addition, the cooling of the refrigerator can be performed, and the cold air can be discharged to have a uniform distribution in the refrigerator, thereby preventing overcooling of the object to be refrigerated.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (4)

A damper cover having a discharge hole is mounted at the center of the rear wall of the refrigerating chamber in which the shelves are formed in multiple layers, and a cold air discharge direction control device of the refrigerator is installed at the rear side of the damper to control the flow direction of the cold air flowing along the cold air flow path. To Direction control means coupled to a rear side of the damper cover to be rotatable in an up and down direction to control a flow direction of the cold air; Lifting means fixed to the direction control means for raising and lowering the direction control means; A cam having a cam groove so that the lifting means is fitted; And And a driving motor fixed to the damper cover so as to rotate the cam. According to claim 1, wherein the damper cover is fixed to the rear side of the first bracket and the first bracket fixed to be coupled to the direction control means and the second bracket so as to be perpendicular to the first bracket. Cold air discharge direction control device of the refrigerator. The apparatus of claim 1, wherein the direction control means comprises a semicircular rotating fan having hinge pins protruding from both sides thereof so as to be fitted into hinge holes respectively formed in the first bracket. The hook of claim 1, wherein the lifting means is formed in a fixing bar fitted into a cam groove of the cam and the other end is fitted into a hinge hole of the second bracket and the fixing bar and caught by a locking hole of a rotating fan. And a spring inserted into the other end of the fixed bar to return the fixed bar to the initial position.