KR101668946B1 - Outdoor unit of air conditioner - Google Patents

Abstract

The present invention relates to an outdoor unit of an air conditioner, which comprises: a case forming an outer appearance; a case having a blowing fan and an outdoor heat exchanger therein; And a discharge grille including a front surface protruding from one surface of the case and a circumferential surface extending along the front surface and connecting one surface of the case to the front surface of the case, A plurality of discharge ports through which the heat-exchanged air is discharged are formed on the front surface and the peripheral surface, and the discharge ports on the peripheral surface are arranged in multiple stages.

Description

[0001] The present invention relates to an outdoor unit of an air conditioner,

The present invention relates to an outdoor unit of an air conditioner.

The air conditioner is an appliance for keeping the indoor air in the most suitable condition according to the purpose and purpose. For example, in the summer, the room is controlled by a cool air condition, while in winter the room is controlled by a warm heating condition, by the humidity of the room, and by the clean air of the room.

In detail, the air conditioner is driven by a refrigeration cycle for compressing, condensing, expanding and evaporating the refrigerant, thereby performing the cooling or heating operation of the indoor space.

The air conditioner may be divided into a separate type air conditioner in which the indoor unit and the outdoor unit are separated from each other and an integrated type air conditioner in which the indoor unit and the outdoor unit are combined into one unit depending on whether the indoor unit and the outdoor unit are separated. The outdoor unit includes an outdoor heat exchanger that exchanges heat with outdoor air. The indoor unit includes an indoor heat exchanger that performs heat exchange with indoor air.

When the refrigeration cycle is a cooling operation, the outdoor heat exchanger functions as a condenser, and the indoor heat exchanger functions as an evaporator. On the other hand, when the refrigeration cycle performs the heating operation, the indoor heat exchanger functions as a condenser, and the outdoor heat exchanger functions as an evaporator.

The outdoor unit of the air conditioner may include a plurality of structures including an outdoor heat exchanger in which a refrigerant for heat exchange flows, a compressor for compressing refrigerant, and a blower fan for forced flow of air.

The case of the outdoor unit is provided with a suction grill in which outside air flows into the outdoor unit and a discharge grille in which air heat-exchanged in the outdoor unit is discharged to the outside.

The air sucked through the suction grille by the blowing fan is heat-exchanged with the refrigerant while passing through the outdoor heat exchanger. The heat-exchanged air is discharged to the outside through the blowing fan through the discharge grille.

Meanwhile, the discharge path resistance varies according to the shape and structure of the discharge grill, so that the rotating speed of the blowing fan to be operated can be determined and the noise can also be determined.

Accordingly, discharge grilles having various structures for improving the air flow structure of the discharge grille have been developed.

Korean Patent Registration No. 10-0150089 has a plurality of concentric grills and a straight line extending outward from the center side, and the flesh and grill of the discharge grill are formed into a hemispherical shape with respect to the center side Thereby improving the flow of air and reducing noise.

Korean Patent Registration No. 10-0408781 discloses an air conditioner comprising a plurality of ribs arranged concentrically with a fan guard through which the air inside the outdoor unit is discharged and a plurality of ribs bent in the rotating direction of the fan, So as to improve the flow of the discharged air and to prevent noise generated during the operation of the fan.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an outdoor unit of an air conditioner capable of improving the fluidity of air and preventing noise by discharging air through a front surface and a peripheral surface of a discharge grill.

An embodiment of the present invention relates to an air conditioner which can improve the fluidity of air discharged by a plurality of concentric circular grilles constituting a discharge grill and a radial grill disposed radially across the grill, And an outdoor unit.

An outdoor unit of an air conditioner according to an embodiment of the present invention includes a case forming an outer appearance and accommodating therein a blowing fan and an outdoor heat exchanger; A discharge grille mounted on one surface of the case to form a part of an outer surface of the case, the discharge grille including a front surface protruding from one surface of the case and a circumferential surface extending along the front surface and connecting one surface of the case to the front surface; And a plurality of discharge ports formed on the front surface and the circumferential surface and through which the heat exchanged air is discharged, wherein the discharge port of the peripheral surface of the plurality of discharge ports is extended to partition the opening of the peripheral surface in the lateral direction, A plurality of horizontal grilles arranged vertically and spaced apart from each other and disposed further outwardly as they go downward; a vertical grill disposed at regular intervals along the horizontal grilles and extending perpendicularly to the horizontal grilles; And a side supporter portion extending obliquely to the side surfaces to support both side ends of the transverse grill.
And the discharge ports on the circumferential surface are arranged in multiple stages.
Wherein the horizontal grill includes a first horizontal grill and a second horizontal grill positioned further downward than the first horizontal grill and the second horizontal grill is located further outward than the outer side of the first horizontal grill .
A round portion formed to be rounded is formed on the inner side of the horizontal grill, and a flat portion formed in a plane shape is formed on the outer side of the horizontal grill.
And the discharge grille is injection-molded from a plastic material.
A plurality of concentric circular grills centering on a center of the discharge grille and increasing in diameter; The discharge grill further includes a linear grille extending radially from the center of the discharge grille so as to cross the plurality of circular grills. The circular grill and the linear grille are both inclined with respect to the front surface of the discharge grille .
And the circular grill is formed so as to be inclined so that its inner diameter increases toward the discharge direction.
And the straight grill is formed to be inclined in the same direction as the rotating direction of the blowing fan.
Wherein the straight grill includes: a plurality of first straight grills extending from a rim of the discharge grill front to a center of the discharge grill; And a second straight line extending between neighboring first straight grilles and extending from a rim of the discharge grill front to one side remote from the center of the discharge grill.
And the linear grille extends in a shape of a tangent line which is in contact with the periphery of the disk-shaped grill core at the center of the discharge grill.

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According to the outdoor unit of the air conditioner according to the embodiment of the present invention, since the air discharged by the blowing fan can be discharged through the front surface of the discharge grille and its peripheral surface, the discharged air can be discharged in three dimensions, Can be increased.

Therefore, since the flow resistance of the discharged air can be reduced, the noise due to the flow resistance of the air can be reduced, and the rotational speed of the blowing fan for securing the required discharge flow rate can be lowered by reducing the flow resistance, Operation becomes possible.

The discharge port on the circumferential surface can be formed in multiple stages by the circumferential wire so that the height of the circumferential surface is increased to increase the discharge flow rate through the circumferential surface while making the width of the discharge port itself small, Can be prevented from flowing into the discharge port of the circumferential surface.

The horizontal grill disposed above and below the plurality of grilles forming the circumferential surface of the discharge grill is positioned on the outer side of the lower grill than the upper grill so that the structure of the metal mold is simplified when the entire discharge grill is injection- So that the effect of improving the moldability can be expected.

A radial grill including a plurality of concentric circles forming a front surface of the discharge grill and a straight grill traversing the radial grill are both inclined so as to improve the flow of air discharged through the discharge grill to reduce noise during driving .

1 is a perspective view of an outdoor unit of an air conditioner according to a first embodiment of the present invention.
2 is an exploded perspective view of the outdoor unit.
3 is a cross-sectional view of the outdoor unit.
4 is a front view of the discharge grill according to the first embodiment of the present invention.
5 is a perspective view of the discharge grill.
6 is a cross-sectional view taken along line 6-6 'of FIG.
7 is a cross-sectional view taken along line 7-7 'of FIG.
8 is a partially enlarged view of the discharge grill.
9 is a partial sectional view of the discharge grill.
10 is a partial sectional view of a discharge grill according to a second embodiment of the present invention
11 is a partial cross-sectional view of a discharge grill according to a third embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

1 is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present invention. 2 is an exploded perspective view of the outdoor unit. 3 is a cross-sectional view of the outdoor unit, taken along line 3-3 'in Fig.

As shown in the drawings, the outdoor unit 1 of the air conditioner according to the embodiment of the present invention has an outer appearance formed by a case having a rectangular parallelepiped shape. The case includes a base pan 11 forming a bottom surface of the outdoor unit 1, a top cover 12 forming an upper surface of the outdoor unit 1, And a rear plate 14 which forms at least a part of the rear surface and both side surfaces of the outdoor unit 1. [ The front plate 13 and the rear plate 14 are disposed between the base pan 11 and the top cover 12 to form an overall outer shape.

The inner space of the outdoor unit 1 may be partitioned into a heat exchange space 211 and a machine room 212 by a barrier 21. An outdoor heat exchanger 22 and a blowing fan 23 are disposed in the heat exchange space 211. The machine room 212 may be provided with a compressor 24 and various valves constituting a refrigeration cycle. The outdoor heat exchanger (22) and the compressor (24) can be fixedly mounted to the base pan (11).

The outdoor heat exchanger 22 extends along the side and rear ends of the base pan 11 and is disposed at a position corresponding to the area of the inlet 141 formed in the rear plate 14. [ Therefore, all the air sucked into the inlet 141 passes through the outdoor heat exchanger 22, and heat exchange with the refrigerant passing through the inside of the outdoor heat exchanger 22 becomes possible.

On the other hand, a mounting bracket 25 is provided in front of the outdoor heat exchanger 22. The lower end of the mounting bracket 25 is fixed to the base pan 11 and the upper end is bent to be fixed to the top cover 12 or the front plate 13 or the rear plate 14.

The mounting bracket 25 is provided with a motor mounting portion 251 for mounting the fan motor 26 therein. The fan motor 26 can be fixedly mounted on the mounting bracket 25 and the rotation axis of the fan motor 26 extends forward.

The blowing fan 23 is coupled to the rotating shaft of the fan motor 26. The blowing fan 23 may be an axial flow fan having a plurality of blades 232 at a central hub 231 coupled to a rotating shaft. Air is sucked through the suction port 141 of the rear plate 14 when the blowing fan 23 rotates and the sucked air passes through the blowing fan 23 to the discharge grille 23 of the front plate 13, (30).

On the other hand, the front plate 13 is provided with the discharge grill 30. The discharge grill 30 may correspond to or slightly larger than the diameter of the blowing fan 23, and may be formed in a rectangular shape.

The front plate 13 may be formed of a metal material, and a grill mounting hole 131 through which the discharge grill 30 can be mounted is formed. The discharge grill 30 can be fixedly mounted on the grill mount 131 and can be coupled onto the front plate 13.

The discharge grill 30 forms a plurality of discharge openings 33 through which the air inside the outdoor unit 1 is discharged to the outside of the outdoor unit 1. The discharged air is discharged from the front surface 31 of the discharge grill 30 A plurality of the discharge ports 33 are formed on the front surface 31 and the circumferential surface 32 of the discharge grill 30 so as to be three-dimensionally discharged through the peripheral surface 32 and the peripheral surface 32.

The discharge grill 30 is injection-molded from a plastic material to form a circumferential surface 32 with the front surface 31. A plurality of discharge ports 33 are formed on the entire front surface 31 and the circumferential surface 32 of the discharge grill 30 so that the air inside the outdoor unit 1 flows forward and rearward toward the outside of the outdoor unit 1. [ So that it can be discharged three-dimensionally.

Hereinafter, the structure of the discharge grill will be described in more detail with reference to the drawings.

4 is a front view of the discharge grill according to the first embodiment of the present invention. 5 is a perspective view of the discharge grill.

As shown in the drawing, the discharge grill 30 includes a generally rectangular front surface 31 and a peripheral surface 32 extending along the rim of the front surface 31. The four corner portions 34 of the discharge grill 30 are formed with a coupling portion 341 to which a coupling member such as a screw for coupling with the front plate 13 is coupled.

A rim portion 311 is formed around the front surface 31 of the discharge grill 30. The rim portion 311 includes a coupling portion 341 and may have a predetermined width. A grill core 312 is formed at the center of the inside of the rim 311, which is open at the inside of the rim 311. The grill core 312 may be formed in a circular shape and may be positioned in front of the hub 231 of the blowing fan 23 and may have a size corresponding to the size of the hub 231.

A plurality of circular grilles 313 and a linear grill 314 are formed in an opened inner region of the rim 311 around the grill core 312. The circular grill 313 and the straight grill 314 So that a plurality of discharge ports 33 can be defined.

The circular grill 313 may be formed in a plurality of concentric circles centering on the grill core 312 and a plurality of the circular grilles 313 may be formed concentrically around the grill core 312, . That is, the diameter of the circular grill 313 adjacent to the grill core 312 may be increased by the same size as going outward. The circular grill 313 of the circular grill 313 contacting with the rim 311 can be formed in the inner region of the rim 311 only in a part of the entire circular shape.

The straight grill 314 may be formed linearly across the plurality of circular grilles 313 and disposed radially around the grill core 312. The plurality of linear grilles 314 may be arranged to rotate around the grill core 312 and may be evenly formed on the entire discharge grill 30. The linear grill 314 may be formed in the form of a tangent line in contact with the grill core 312 and a virtual extension line of the linear grill 314 may be formed in the form of a tangent line in contact with the grill core 312 .

The linear grill 314 includes a first straight grill 315 extending from the grill core 312 to the rim 311 and a second straight grill 315 extending from the rim core 312 And a second straight grill 316 extending to a distance of the second straight grill 316.

The first straight grill 315 is formed at regular intervals and the second straight grill 316 is formed along the middle between the neighboring first straight grill 315. However, the second straight grill 316 extends to a predetermined length from the rim 311 and extends to a position away from the grill core 312. Accordingly, the area of the discharge port 33 near the grill core 312 is prevented from becoming too small by the second straight grill 316. The plurality of discharge ports 33 formed in the front surface 31 of the discharge grill 30 have a predetermined size or more and a passage through which discharged air can flow smoothly can be secured.

The circular grill 313 and the linear grill 314 may be formed to have a predetermined inclination so that the air discharged by the blowing fan 23 can be discharged more smoothly. At this time, the discharged air can be discharged so as to spread outward with respect to the center of the circular grill 313, and can be discharged in the form of a spiral which is rotated along the tilted direction of the linear grill 314, It is possible to improve the air flow and reduce the noise.

Hereinafter, the structure of the circular grill and the straight grill will be described in more detail.

6 is a cross-sectional view taken along line 6-6 'of FIG.

As shown in the drawing, the circular grill 313 is formed to have a predetermined width and thickness, and a plurality of the circular grilles 313 are continuously arranged at equal intervals, and the same one linear grill 314 is disposed on the plurality of circular grilles 313 May be formed to traverse.

The circular grill 313 is formed to have a slope at an angle. The circular grill 313 may be formed so that the lower end thereof faces the center of the grill core 312, that is, the front face of the discharge grill 30,

At this time, the inclination angle? Of the circular grill 313 may be formed to have an angle of about 70 ° to 85 ° with respect to the front surface of the discharge grille 30. When the inclination angle alpha of the circular grill 313 is less than 70 degrees, the inclined surface of the circular grill 313 rather blocks the flow of air to increase the flow path resistance, and the angle of inclination of the circular grill 313 (?) becomes larger than 85 °, the effect of spreading the air outward is weakened, and the flow is not improved.

The air discharged by the air blowing fan 23 is discharged toward the outside of the outdoor unit 1 along the inclined surface of the inner side surface of the circular grill 313 in accordance with the inclined shape of the circular grill 313. [ . Therefore, it can flow along the inclined surface of the circular grill 313 while spreading outwardly away from the center of the grill core 312.

7 is a cross-sectional view taken along line 7-7 'of FIG.

As shown in the figure, the linear grill 314 is formed to have a predetermined width and thickness, and a plurality of the linear grilles 314 are radially arranged at equal intervals, 313, respectively.

The straight grill 314 is positioned in a direction away from the lower end of the straight grill 314 in the direction of rotation from the lower end of the straight grill 314, As shown in Fig.

That is, the direction of inclination of the linear grill 314 can be determined according to the rotating direction of the blowing fan 23, and is formed to have a shape inclined in the same direction as the rotating direction of the blowing fan 23, So that the air can be discharged while maintaining the rotating direction of the air passing through the fan (23). Of course, the inclined direction of the straight grill 314 may be determined according to the rotational direction of the blowing fan 23, and if the rotational direction of the blowing fan 23 is clockwise, the inclined direction of the straight grill 314 May be formed to be inclined in a direction opposite to that of FIG.

The angle of inclination of the linear grill 314 may be about 55 to 75 degrees with respect to the front surface 31 of the discharge grill 30. When the angle of inclination of the straight grill 314 is less than 55 degrees, the inclined surface of the straight grill 314 blocks the flow of air to increase the flow resistance, the air flowing while being rotated collides with the straight grill 314, so that the flow path resistance when the discharged air flows becomes large.

The air discharged by the air blowing fan 23 is discharged while being rotated in the counterclockwise direction in accordance with the rotating direction of the air blowing fan 23 and the linear grill 314 is inclined along the flow direction of the discharged air, So that it can be discharged while maintaining the rotational state naturally.

That is, the air discharged by the air blowing fan 23 spreads outward while passing through the discharge grille 30, and the air flow is rotated in the same direction as the rotating direction of the air blowing fan 23 The resistance of the discharged air can be reduced and natural air flow can be achieved.

A circumferential surface 32 is formed along the outer edge of the front surface 31 of the discharge grille 30. [ The circumferential surface 32 is formed to have a predetermined height and a plurality of discharge ports 33 are formed in the entirety except for the corner portion of the circumferential surface 32, (1) so that the air inside can be discharged.

8 is a partially enlarged view of the discharge grill. 9 is a partial sectional view of the discharge grill.

8 and 9, the circumferential surface 32 of the discharge grill 30 is formed in such a manner that the circumferential surface 32 of the discharge grill 30 is in contact with the front surface of the discharge grill 30, Thereby forming a space between the plates 13.

Accordingly, when the discharge grille 30 is mounted, the discharge grille 30 has a shape protruding from the front plate 13, and the peripheral surface 32 can be exposed to the outside. At this time, a plurality of discharge ports 33 are formed in the circumferential surface 32 so that air passing through the discharge grill 30 can be discharged through the circumferential surface 32.

In detail, a corner portion 34 is formed at both ends of the circumferential surface 32, and a side opening 321 is formed between the corner portions 34. A plurality of horizontal grilles 322 and vertical grilles 325 are formed between the side openings 321 to define a discharge port formed in the peripheral surface 32.

The lateral grill 322 is formed to cross the side opening 321 in the lateral direction and has a predetermined width. The horizontal grill 322 may include a plurality of horizontal grilles 322 and may be vertically spaced. At this time, the vertical distance of the horizontal grill 322 is set according to a set standard so that the user's fingers do not enter. Accordingly, when the height of the circumferential surface 32 is high, the horizontal grill 322 can be formed more.

In the embodiment of the present invention, two horizontal grilles 322 are provided. The horizontal grill 322 includes a first horizontal grill 323 and a second horizontal grill 323 which are formed to connect between the lower edge of the side opening 321 and the corner portions 34 on both sides, And a second transverse grill 324 provided on the second transverse grill 322.

At this time, the second horizontal grill 324 is positioned further outward than the first horizontal grill 323, and at least a portion of the circumferential surface 32 of the discharge grill 30, on which the horizontal grill 322 is formed, Some may be formed obliquely.

That is, the side supporters 342 may be further formed at both ends of the corner portion 34 of the circumferential surface 32. The side supporters 342 may be formed in a plate shape protruding from the circumferential surface 32, and may be formed in such a shape that the width becomes narrower from the lower side toward the upper side. The second transverse grill 324 may be positioned below the side supporter 342 and the first transverse grill 323 may be positioned above the side supporter 342. Since the circumferential surface 32 is inclined, the movement of the mold for forming the discharge grill 30 is facilitated when the discharge grill 30 is formed.

In detail, in order to form the discharge grill 30, the discharge grille 30 can be formed by the upper mold, the lower mold, and the slide core. Particularly, the lower mold forms the inner shape of the discharge grill 30, and the circumferential surface 32 of the discharge grill 30 is formed to be inclined so that the lower mold can easily be taken in and out.

The slider core has a lateral separable structure and is defined by the circumferential surface 32, in particular, the transverse grill 322 and the longitudinal grill 325, and the transverse grill 322 and the longitudinal grill 325 So that the discharge port 33 can be formed.

A plurality of vertical grilles 325 are formed in the side openings 321. The vertical grill 325 extends from the upper end to the lower end of the side opening 321 and is extended to cross the first horizontal grill 323 and the second horizontal grill 324.

The vertical grill 325 is formed to support the horizontal grill 322 inside the discharge grill 30. The vertical grilles 325 may be arranged to vertically cross the horizontal grilles 322, and a plurality of the vertical grilles 325 may be disposed at regular intervals. In this way, the plurality of vertical grilles 325 and the horizontal grilles 322 intersect with each other to form the discharge port 33.

Hereinafter, the air flow of the outdoor unit of the air conditioner according to the embodiment of the present invention will be described.

As shown in the figure, the fan motor 26 is driven according to the operation of the outdoor unit 1 to rotate the blowing fan 23.

External air is introduced into the outdoor unit (1) through the inlet (141) of the rear plate (14) by the rotation of the blowing fan (23). All the air flowing into the outdoor unit 1 passes through the outdoor heat exchanger 22 and is heat-exchanged with the refrigerant flowing along the outdoor heat exchanger 22 while passing through the outdoor heat exchanger 22 .

The heat-exchanged air passes through the blowing fan 23 according to the rotation of the blowing fan 23, and flows toward the front of the blowing fan 23. The air passing through the blowing fan 23 can be discharged to the outside of the outdoor unit 1 while passing through the discharge grille 30. [ The air passing through the discharge grill 30 can be discharged three-dimensionally through the peripheral surface 32 as well as the front surface of the discharge grill 30.

The air discharged through the front surface of the discharge grill 30 can be discharged in an outward direction with respect to the center of the discharge grill 30 by the inclined surface of the circular grill 313. [ The air blown by the air blowing fan 23 can be discharged along the inclined surface of the linear grill 314 while maintaining the rotating direction.

That is, the air discharged through the front surface of the discharge grille 30 is discharged along the inclined surfaces of the circular grill 313 and the linear grill 314, so that the air flows in the direction of rotation while spreading outwardly . Therefore, it is possible to minimize the flow path resistance caused by the discharge of air and maintain the flow direction, thereby enabling smooth discharge of air.

On the other hand, air can be discharged through the front surface 31 of the discharge grill 30 as well as the peripheral surface 32 of the discharge grill 30. Accordingly, it is possible to increase the air discharge area by simultaneous air discharge of the front surface and the circumferential surface 32 of the discharge grill 30, and it is possible to discharge the air more smoothly, do.

The multistage discharge port 33 formed by the horizontal grill 322 and the vertical grill 325 allows the air to flow sideways through the circumferential surface 32, The height of the circumferential surface 32 can be increased by maintaining the height of the discharge port 33 at a constant level to ensure the safety of the user.

Meanwhile, the outdoor unit of the air conditioner according to the present invention may have various other embodiments other than the above-described embodiments.

According to another embodiment of the present invention, the lateral partition forming the circumferential surface of the discharge grill is spaced apart from each other in the vertical direction so that the formability is made easier.

The second embodiment of the present invention is the same as the second embodiment except for the circumferential surface of the discharge grill, so that the same reference numerals are used for the same components in order to avoid redundant description, and a detailed description thereof will be omitted.

10 is a partial sectional view of a discharge grill according to a second embodiment of the present invention

As shown in the drawings, the discharge grill 40 according to the second embodiment of the present invention can be composed of a front surface 41 and a circumferential surface 42. The front surface 41 of the discharge grill 40 is configured to include a circular grill 313 and a linear grill 314 as in the above-described embodiment, So that the air inside the outdoor unit 1 can be discharged.

A plurality of horizontal grilles 422 and a vertical grill 425 are formed on the circumferential surface 42. The horizontal grill 422 and the vertical grill 425 intersect with each other, The discharge port 43 to be discharged is defined.

Therefore, the air discharged from the inside to the outside of the outdoor unit 1 can be discharged in three dimensions through the front surface 41 and the circumferential surface 42 of the discharge grill 40, and the flow rate of the discharged air can be increased .

A side opening 321 is formed between the corner portions 34 of the circumferential surface 42 and a vertical grill 425 and the side grill 422 are disposed on the side opening 321. On both sides of the side opening 321, a side supporter 342 having a smaller width is formed, and the side supporter 342 is formed as a rib protruding outward.

The horizontal grill 422 is formed to connect between the side supporters 342, and is formed to be spaced apart from the upper and lower sides. That is, a first horizontal grill 423 is formed on the upper side of the side opening 321, and a second horizontal grill 424 is formed between the first horizontal grill 423.

At this time, the second horizontal grill 424 is positioned further outward than the first horizontal grill 423. In detail, the inner surface of the second horizontal grill 424 is located further outward than the outer surface of the first horizontal grill 423. Accordingly, the outer surfaces of the first horizontal grill 423 and the second horizontal partition 424 can be arranged so that the extension lines in the vertical direction do not overlap each other. That is, the first horizontal grill 423 and the second horizontal grill 424 can be positioned at positions where their outer sides are horizontally separated from each other.

Although not shown in detail, the vertical grill 425 is formed to cross all the horizontal grilles 422 and can be configured to support the horizontal grill 422.

In this way, the discharge grill 40 can be formed by the upper mold and the lower mold. In detail, the discharge grill 40 may be formed by a pair of upper and lower molds, and at least one of the upper and lower molds may be vertically movable.

With this structure, the discharge grill 40 can be formed only by the up-and-down movement of the upper mold and the lower mold without a separate sliding core.

Meanwhile, the outdoor unit of the air conditioner according to the present invention may have various other embodiments other than the above-described embodiments.

In the third embodiment of the present invention, the inner side surface of the lateral partition forming the circumferential surface of the discharge grill is rounded so that the air can flow smoothly.

The other embodiments of the present invention are the same except for the structure of the discharge grill and the grill guide. In order to avoid redundant description, the same reference numerals are used for the same components, and a detailed description thereof will be omitted.

11 is a partial cross-sectional view of a discharge grill according to a third embodiment of the present invention.

As shown in the drawings, the discharge grill 50 according to the third embodiment of the present invention can be composed of the front surface 51 and the circumferential surface 52. The front surface 51 of the discharge grill 50 is configured to include a circular grill 313 and a linear grill 314 as in the above embodiment so as to form a front surface 51 of the discharge grill 50, So that the air inside the outdoor unit 1 can be discharged.

A plurality of horizontal grilles 522 and a vertical grill 525 are formed on the circumferential surface 52. The horizontal grill 522 and the vertical grill 525 intersect with each other, The discharge port 53 to be discharged is defined.

Therefore, the air discharged from the inside to the outside of the outdoor unit 1 can be discharged three-dimensionally through the front surface 51 and the peripheral surface 52 of the discharge grill 50, and the flow rate of the discharged air can be increased .

A side opening 321 is formed between the corner portions 34 of the circumferential surface 52 and the side grill 522 and the vertical grill 525 are disposed on the side opening 321. On both sides of the side opening 321, a side supporter 342 having a smaller width is formed, and the side supporter 342 may be formed as a rib protruding outward.

The transverse grill 522 is formed to connect between the side supporters 342 and is spaced apart from the upper and lower sides. That is, a first horizontal grill 523 is formed on the upper side of the side opening 521, and a second horizontal grill 524 is formed on the lower side of the first horizontal grill 523. At this time, the second transverse grill 524 is located further outward than the first transverse grill 523.

Although not shown in detail, the vertical grill 525 is formed to cross all the horizontal grilles 522 and can be configured to support the horizontal grill 522.

Meanwhile, the transverse grill 522 may include a round portion 522a formed to have an inner side rounded, and a planar portion 522b having a planar outer side.

The round portion 522a is formed in a round shape protruding inward of the outdoor unit 1 so that the flow of air discharged from the inside of the outdoor unit 1 to the outside of the outdoor unit 1 can be smoothly performed .

The plane portion 522b is formed in a planar shape perpendicular to the front surface of the discharge grille 30 so as to show a linear appearance, thereby making it possible to realize a neat and simple appearance.

Claims (12)

A case which forms an outer appearance and in which a blowing fan and an outdoor heat exchanger are accommodated;
A discharge grille mounted on one surface of the case to form a part of an outer surface of the case, the discharge grille including a front surface protruding from one surface of the case and a circumferential surface extending along the front surface and connecting one surface of the case to the front surface;
And a plurality of discharge ports formed on the front surface and the circumferential surface, through which the heat-exchanged air is discharged,
Wherein the discharge port of the circumferential surface of the plurality of discharge ports,
A plurality of horizontal grilles extending to divide the opening of the circumferential surface in the transverse direction and spaced apart from each other and disposed further outwardly toward the lower side;
A vertical grill disposed at regular intervals along the horizontal grill and extending perpendicularly to the horizontal grill,
And a side supporter portion extending obliquely to the circumferential surface to support both side ends of the transverse grill.
The method according to claim 1,
And the discharge ports of the circumferential surface are arranged in multiple stages.
delete The method according to claim 1,
The horizontal grille includes:
A first horizontal grill,
And a second transverse grill positioned further downward than the first transverse grill,
And the second horizontal grille is located on the outer side of the outer side of the first horizontal grille.
The method according to claim 1,
Wherein a round portion is formed on an inner side surface of the horizontal grille and a flat surface portion is formed on an outer surface of the horizontal grille.
delete The method according to claim 1,
Wherein the discharge grill is injection molded of a plastic material.
The method according to claim 1,
On the front surface of the discharge grille,
A plurality of concentric circular grills centering on the center of the discharge grill and increasing in diameter;
Further comprising a linear grille extending radially from the center of the discharge grille so as to traverse the plurality of circular grills,
Wherein both the circular grill and the straight grill have a slope with respect to a front surface of the discharge grill.
9. The method of claim 8,
Wherein the circular grille is inclined so that the inner diameter increases toward the discharge direction.
9. The method of claim 8,
Wherein the linear grille is inclined in the same direction as the rotation direction of the air blowing fan.
9. The method of claim 8,
The straight grill includes:
A plurality of first straight grills extending from a rim of the discharge grill front to a center of the discharge grill;
And a second straight line extending between neighboring first straight grills extending from an edge of the front surface of the discharge grille to one side remote from the center of the discharge grille.
9. The method of claim 8,
Wherein the linear grill extends in a tangent shape in contact with the periphery of the disk-shaped grill core at the center of the discharge grill.

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