KR20070037843A - Air-conditioner - Google Patents

Abstract

The present invention can be easily assembled without a screw to secure the bushing rotatably supporting the rotating shaft of the blade to the lower panel, and discloses an air conditioner that is not exposed to the outside of the bushing is not exposed to the outside.

The air conditioner according to the present invention is coupled to a case forming an outer shape and a lower portion of the case and installed at a lower panel formed with a suction port and a discharge port, and a blade for controlling a discharge direction of discharge air, and a rotating shaft formed at both ends of the blade. And a cover for covering the fixing groove provided in the lower panel so that the bushing is fixed and the bushing inserted into the fixing groove so that the bushing inserted into the fixing groove is not separated from the bushing. .

Description

 Air Conditioner {AIR-CONDITIONER}

1 is a side cross-sectional view showing the overall configuration of an air conditioner according to the present invention.

Figure 2 is a perspective view of the lower panel coupled to the bottom of the case.

Figure 3 is a perspective view showing the bushing is fixed to the fixing groove as an enlarged view of the portion A of FIG.

Figure 4 is a perspective view showing a state that the cover is coupled to the lower panel.

* Description of symbols on the main parts of the drawings *

10: case 14: inlet

15: discharge port 20: lower panel

21: fixing groove 21a: plate fixing groove

21b: protrusion fixing groove 30: blade

31: rotating shaft 35: first rib

36: second rib 38: cushion

40: bushing 40a: plate

40b: protrusion 41: support hole

50: cover

The present invention relates to an air conditioner, and more particularly, to a ceiling type air conditioner having a fixing structure of a bushing rotatably supported at both ends of a blade which is installed at a discharge port to change a discharge direction.

In general, an air conditioner is a device for cooling or heating a room by using vaporization heat and liquefaction heat generated when a refrigerant is vaporized or liquefied in a refrigeration cycle in which a compressor, a condenser, an expansion valve, and an evaporator are connected to a refrigerant pipe to form a closed circuit.

One type of air conditioner is a ceiling type air conditioner installed on the ceiling of a room to perform cooling or heating. It is advantageous in the activity of an indoor space, and since the cold air is discharged from the ceiling, the rate of diffusion of cold air is relatively high. As it has advantages, the demand is gradually expanding.

Conventional ceiling air conditioners are largely composed of a case which forms an outer shape and is embedded in a ceiling, a turbo fan installed downward in the inner center of the case, and a heat exchanger installed around the turbo fan to heat exchange the air sucked from the turbo fan. It became.

In addition, a suction port is formed at the center of the lower panel coupled to the lower part of the case so that air is sucked into the case by the suction force generated by the turbofan, and the outer surface of the bottom panel of the lower panel flows into the case and exchanges heat. A discharge port through which air is discharged is formed.

The discharge port is provided with a blade for adjusting the wind direction of the discharged air, a rotary shaft is provided at both ends of the blade, the rotary shaft was rotatably supported by a bushing. In addition, the bushing was screwed to the lower panel with screws, and a lot of screws were required to couple all the blades, and a lot of time and effort were required to fasten the screws.

In addition, there is a concern that the bushing may be damaged by the impact applied to the product by exposing a part of the bushing.

The present invention is to solve the above problems, an object of the present invention is to provide a ceiling-type air conditioner that can be easily assembled without screws in fixing the bushing rotatably supported by the rotating shaft of the blade to the lower panel. .

It is a further object of the present invention to provide an air conditioner which is not subject to the bushing being damaged by an external impact.

In order to achieve the above object, the air conditioner according to the present invention is coupled to the case forming the outer shape and the lower portion of the case, the lower panel is formed in the inlet and the discharge port and the blade is installed in the discharge port to control the discharge direction of the discharge air And a bushing for supporting the rotating shaft formed on both ends of the blade and a fixing groove provided in the lower panel so that the bushing is fixed and a cover for covering the fixing groove so that the bushing inserted in the fixing groove is not separated.

In addition, the bushing includes a rectangular plate and a protrusion protruding to one side of the plate.

In addition, the fixing groove includes a plate fixing groove to which the plate is inserted and fixed and a protrusion fixing groove to which the protrusion is inserted and fixed.

In addition, the protrusion fixing groove is formed by cutting a portion of the first rib forming the discharge hole, the plate fixing groove is filled between the first rib and the second rib spaced a predetermined distance from the first rib A portion of is formed by incision.

The cushion is also made of Expandable polystyrene (ESP).

In addition, the bushing is made of polyoxymethylene (POM), and the whole is inserted into the fixing groove.

In addition, a hook is formed on one side of the cover and the lower panel, and a fixing groove for fixing the hook is formed on the other side, and the cover is coupled to the lower panel.

Hereinafter, an air conditioner according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of an air conditioner according to a preferred embodiment of the present invention. The case 10 having an outer shape and embedded in a ceiling and a centrifugal fan 11 installed downward in the inner center of the case 10 are illustrated. And a heat exchanger 13 installed at all sides around the fan motor 12 and the centrifugal fan 11.

In addition, a suction port 14 is formed at the center of the lower panel 20 to be coupled to the lower part of the case 10 so that air can be sucked into the case 10 by suction force generated by the centrifugal fan 11. In addition, a discharge port 15 is formed at an outer portion of the lower panel 20 to discharge air that is introduced into the case 10 and heat-exchanged.

In addition, the suction port 14 is provided with a filter 16 for filtering dust in the air sucked into the case, the discharge port 15 is provided with a blade 30 for adjusting the discharge direction of the discharged air do.

When power is generated in the fan motor 12 in the air conditioner configured as described above, when the centrifugal fan 11 coupled thereto rotates in one direction, the inlet 14 formed at the center of the bottom surface of the lower panel 20 by the rotational force thereof. The indoor air is sucked through), and the sucked air is discharged radially by the rotational force of the centrifugal fan 11 to pass through the heat exchanger 13 installed around the centrifugal fan 11.

As such, the air heat-exchanged while passing through the heat exchanger 13 is finally cooled or heated in the room while repeating the discharge process through the discharge port 15 formed outside the lower panel 20. At this time, the discharge port 15 is provided with a blade 30 for adjusting the wind direction of the discharged air.

As described above, in order to rotatably support the blade 30 for adjusting the wind direction of the discharged air, the lower shaft 20 is rotatably supported by the rotation shafts 31 formed at both ends of the blade 30. A plurality of fixing grooves 21 to which the bushing 40 is coupled are provided.

FIG. 3 is an enlarged view of a portion A of FIG. 2 and illustrates a state in which the bushing 40 is fixed to the fixing groove 21.

The bushing 40 is formed integrally with a rectangular plate 40a and a hexahedral protrusion 40b protruding toward one side of the plate 40a as a whole. A support hole 41 is formed through the plate 40a and the protrusion 40b and rotatably supporting the rotation shaft 31 of the blade 30.

Since the rotary shaft 31 of the blade 30 is inserted into the support hole 41 of the bushing 40 and frictionally rotates, the bushing 40 is a plastic having excellent characteristics not found in other materials such as fatigue resistance, toughness, and abrasion resistance. It is preferably made of polyoxymethylene (POM).

The fixing groove 21 to which the bushing 40 is fixed is divided into a plate fixing groove 21a into which the plate 40a is inserted and fixed, and a protrusion fixing groove 21b into which the protrusion 40b is inserted and fixed.

The protrusion fixing groove 21b is formed by cutting a portion of the first rib 35 forming the discharge hole 15. In addition, a semi-circular cutout 37 is formed in the second rib 36 spaced apart from the first rib 35 by a predetermined distance so as not to interfere when the rotating shaft 31 of the blade 30 rotates.

The plate fixing groove 21a is formed by cutting a part of the cushion 38 filled in the space between the first rib 35 and the second rib 36.

The cushion 38 is preferably formed of expandable polystyrene (ESP) having elastic restoring force.

When the bushing 40 is pushed into the fixing groove 21 to fix the bushing 40 to the fixing groove 21, the plate 40a is sandwiched between the first rib 35 and the cushion 38, and the protrusion 40. 40b is inserted into and fixed in the protrusion fixing groove 21b, so that the bushing 40 is fixed to the fixing groove 21 as a whole.

At this time, in order to prevent the bushing 40 from falling out of the fixing groove 21, the plate 40a may be inserted into the plate fixing groove 21a by making the thickness of the plate 40a thicker than the thickness of the plate fixing groove 21a. When compressed by the cushion 38 having an elastic restoring force is preferable.

In addition, it is preferable that the entire bushing is completely inserted into the fixing groove so that the bushing 40 is not exposed to the outside.

In the state in which the rotary shaft 31 of the blade 30 is inserted into the support hole 41 of the bushing 40, the bushing 40 is inserted into the fixing groove 21 and fixed as described above.

As shown in FIG. 4, the bushing 40 is fixed to the fixing groove 21 of the lower panel 20, so that the bushing 40 is not separated from the fixing groove 21 as shown in FIG. 4. The cover 50 is coupled to the cover coupling portion 25 formed on the cover 50.

At this time, the cover 50 is formed with a locking groove 51 and the cover coupling portion 25 is formed with a hook 26 to be inserted into the locking groove 51, the cover 50 is the cover coupling portion ( 25) is simply combined. Of course, on the contrary, the hook 26 is formed on the cover 50, and the locking groove 51 is formed on the cover coupling part 25 so that the cover 50 may be coupled to the cover coupling part 25.

As described above, when one cover 50 is coupled to the cover coupling part 25, the two bushings 40 are prevented from being separated from the fixing groove 21, so that the blade 30 is quickly removed from the lower panel 20. ) Can be combined.

As described in detail above, according to the air conditioner according to the present invention, it is not necessary to fasten an additional screw when fastening the bushing rotatably supporting the rotating shaft of the blade to the lower panel, thereby reducing assembly time.

In addition, since the entire bushing is completely inserted into the fixing groove and is not exposed to the outside, there is no fear of damage due to external impact.

Claims (8)

The case forming the appearance and A lower panel coupled to a lower portion of the case and having an inlet and an outlet; A blade installed at the discharge port to control the discharge direction of the discharged air; Bushing for supporting the rotating shaft formed on both ends of the blade and A fixing groove provided in the lower panel to fix the bushing; And a cover covering the fixing groove so that the bushing inserted into the fixing groove is not separated. The method of claim 1, The bushing includes a rectangular plate and an air conditioner comprising a protrusion protruding to one side of the plate. The method of claim 2, The fixing groove is an air conditioner comprising a plate fixing groove to which the plate is inserted and fixed and a protrusion fixing groove to which the protrusion is inserted and fixed. The method of claim 3, wherein The protrusion fixing groove is formed by cutting a portion of the first rib forming the discharge hole, and the plate fixing groove is a portion of the cushion which is filled between the first rib and the second rib spaced a predetermined distance from the first rib. Air conditioner, characterized in that formed by cutting. The method of claim 4, wherein The cushion is an air conditioner, characterized in that made of expanded polystyrene (Expandable polystyrene: ESP). The method of claim 2, The bushing is an air conditioner, characterized in that made of Poly Oxy Methelene (POM). The method of claim 1, The bushing is an air conditioner, characterized in that the whole is inserted into the fixing groove. The method of claim 1, A hook is formed on one side of the cover and the lower panel, and a fixing groove for fixing the hook is formed on the other side of the cover and the air conditioner, characterized in that the cover is coupled to the lower panel.

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