KR20160097617A - Outdoor unit of air conditioner - Google Patents

Outdoor unit of air conditioner Download PDF

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Publication number
KR20160097617A
KR20160097617A KR1020150019512A KR20150019512A KR20160097617A KR 20160097617 A KR20160097617 A KR 20160097617A KR 1020150019512 A KR1020150019512 A KR 1020150019512A KR 20150019512 A KR20150019512 A KR 20150019512A KR 20160097617 A KR20160097617 A KR 20160097617A
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KR
South Korea
Prior art keywords
grill
hub
guide
air
diameter
Prior art date
Application number
KR1020150019512A
Other languages
Korean (ko)
Inventor
조남준
양동근
김병수
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020150019512A priority Critical patent/KR20160097617A/en
Publication of KR20160097617A publication Critical patent/KR20160097617A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/40—Vibration or noise prevention at outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • F24F1/54—Inlet and outlet arranged on opposite sides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • F24F13/084—Grilles, registers or guards with mounting arrangements, e.g. snap fasteners for mounting to the wall or duct
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The present invention relates to an outdoor unit of an air conditioner, and more particularly, to a front grill in which a plurality of discharge ports through which air is discharged are formed; A blower fan disposed at a position spaced apart from the front grille and having a hub at a central portion thereof and a plurality of blades formed at a circumferential surface of the hub to discharge air in an axial direction; And a grill guide extending from the rear surface of the grill pan toward the blower fan and disposed on the same extension line as the hub to guide the discharge air.

Description

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

The present invention relates to 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.

Japanese Laid-Open Patent Publication No. 2013-44457 discloses an outdoor unit of a general detachable air conditioner.

The outdoor unit of the air conditioner according to the related art is provided with components constituting a refrigeration cycle including an outdoor heat exchanger, a blowing fan rotated by a motor, and a compressor, and a front grill discharging air is provided on the front surface of the outdoor unit do.

The center of the front grill corresponding to the center of rotation of the blowing fan is clogged in a circular shape of a corresponding size, and radial holes are arranged around the hub to have a structure in which air is discharged.

At this time, the central portion of the grill and the hub of the blowing fan are spaced apart from each other. Therefore, when the outdoor unit is not under the rated operation, the flow velocity at the hub side becomes lower than the designed point, and air flowing due to a low flow velocity can be partially introduced into the space between the central portion of the grill and the blowing fan, There is a problem that noise is generated by the development.

An object of the present invention is to provide an outdoor unit of an air conditioner that reduces noise by preventing a vortex phenomenon during rotation of a blowing fan.

An outdoor unit of an air conditioner according to an embodiment of the present invention includes: a front grille having a plurality of discharge ports through which air is discharged; A blower fan disposed at a position spaced apart from the front grille and having a hub at a central portion thereof and a plurality of blades formed at a circumferential surface of the hub to discharge air in an axial direction; And a grill guide extending from the back surface of the grill pan to the blower fan side and arranged on the same extension line as the hub to guide the discharge air.

The grill guide is formed in a cylindrical shape and is formed to have the same diameter as the front surface of the hub positioned at the opposite position.

The grill guide is formed so that its diameter decreases gradually toward the front grill side, and the circumferential surface is formed to be inclined.

The grill guide includes a circumferential portion forming an inclined circumferential surface; A front portion bent inwardly from one end of the peripheral portion and engaged with the grill guide; And a rear portion bent inward from the other end of the peripheral portion and disposed to face the front surface of the hub.

And an opening through the grill guide is formed at the center of the front part and the rear part.

And a coupling protrusion and a coupling hole are formed on a rear surface of the front part and the front grille so as to be coupled to each other so that the grill guide can be fixedly mounted.

And the ratio of the diameters of the front portion and the rear portion is 0.6 to 0.7.

And the rear portion and the front surface of the hub are spaced apart by approximately 10 mm to 14 mm.

A circular grill core is formed at a center of a front grille extending in the same line as the hub, and the grill guide extends rearward along the periphery of the grill core.

The grill core is formed to be smaller than the diameter of the hub, and the diameter of the extended end of the grill guide is the same as the diameter of the hub, and the circumferential surface of the grill guide is formed to be inclined.

The extended end portion of the grill guide is formed to be open, and a rear portion adjacent to the front surface of the hub is further formed at the open end of the grill guide.

The grill guide is formed integrally with the front grille by injection molding at the time of forming the front grille.

According to the outdoor unit of the air conditioner of the embodiment of the present invention, since the grill guide is further provided between the core of the grill and the hub of the blowing fan, the interval between the hub of the blowing fan and the grill guide is narrowed, Even when the flow velocity of the air flowing along the air flow is lowered, air is introduced into the space between the hub of the blowing fan and the grill guide to prevent vortices from being generated, and noise generated when the air flows is reduced.

The outer surface of the grill guide may be inclined so that the flow of air adjacent to the hub side of the blower fan is guided smoothly toward the front grill side, thereby improving the flow of air.

In addition, a rear portion facing the hub may be formed on one side of the grill guide contacting the hub of the blowing fan, so that air flowing along the hub side can be prevented from flowing into the grill guide.

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.
4 is an exploded perspective view of the grill guide according to the embodiment of the present invention.
5 is an exploded cross-sectional view showing the combination of the front grill and the grill guide according to the embodiment of the present invention.
6 is a view showing an air flow state inside the outdoor unit.
7 is a cross-sectional view showing a structure of a front grill according to another 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.

As shown in the drawings, an outdoor unit 1 of an air conditioner according to an embodiment of the present invention is formed in a rectangular parallelepiped shape. The outdoor unit 1 includes a base pan 10 forming a bottom surface of the outdoor unit 1, a top cover 20 forming an upper surface of the outdoor unit 1, A front plate 30 forming a front surface, and a rear plate 40 forming at least a part of both the rear surface and both side surfaces of the outdoor unit 1. The front plate 30 and the rear plate 40 are disposed between the base pan 10 and the top cover 20 to form an overall outer shape.

The inner space of the outdoor unit 1 may be partitioned into a heat exchange space 51 and a machine room 52 by a barrier 50. An outdoor heat exchanger 511 and a blowing fan 550 are disposed in the heat exchange space 51. The machine room 52 may be provided with a compressor 521 and various valves constituting a refrigeration cycle. The outdoor heat exchanger 511 and the compressor 521 may be fixedly mounted to the base pan 10.

The outdoor heat exchanger 511 extends along the side and rear ends of the base pan 10 and is disposed at a position corresponding to the area of the suction port 41 formed in the rear plate 40. Therefore, all the air sucked into the suction port 41 passes through the outdoor heat exchanger 511, and heat exchange with the refrigerant passing through the inside of the outdoor heat exchanger 511 becomes possible.

On the other hand, a mounting bracket 530 is provided in front of the outdoor heat exchanger 511. The lower end of the mounting bracket 530 is fixed to the base pan 10 and the upper end of the mounting bracket 530 is bent to be fixed to the top cover 20 or the front plate 30 or the rear plate 40.

The mounting bracket 530 is provided with a motor mounting portion 531 for mounting the fan motor 540 therein. The fan motor 540 can be fixedly mounted on the mounting bracket 530 and the rotation axis of the fan motor 540 extends forward.

The blower fan 550 is coupled to the rotating shaft of the fan motor 540. The blowing fan 550 may be an axial flow fan having a plurality of blades 552 at a central hub 551 coupled to a rotating shaft. Air is sucked through the suction port 41 of the rear plate 40 when the blowing fan 550 rotates and the sucked air passes through the blowing fan 550 to the front grill (31).

Meanwhile, the front plate 30 is provided with the front grill 31. The front grill 31 may correspond to or slightly larger than the diameter of the blowing fan 550, and may be formed in a rectangular shape.

A grill core 311 is formed on the front grill 31 at a position corresponding to the hub 551 of the blowing fan 550. A radial grill 312 having a plurality of concentric circles around the grill core 311 and a quadrangular grill 313 extending linearly outward with respect to the grill core 311 are provided .

A plurality of the radial grilles 312 are formed to have different diameters, and a plurality of radial grilles 312 may be arranged at regular intervals. A plurality of the quadrangular grilles 313 may extend in the outward direction with respect to the grill core 311 and may be formed in a shape of a tangent line in contact with the grill core 311 or on an extension line of a tangent line. have. The quadrangular grille 313 is arranged to cross a plurality of the radial grills 312. Therefore, the discharge port 314 can be formed by the radial grill 312 and the quadrilateral grill 313, and air forcedly blown by the blowing fan 550 is discharged through the discharge port 314.

Meanwhile, a grill guide 560 is mounted on the grill core 311. The grill guide 560 is provided between the grill core 311 and the hub 551 of the blowing fan 550 so that the air blown by the blowing fan 550 smoothly flows through the front grill 31 As shown in FIG.

3 is a cross-sectional view of the outdoor unit, taken along line 3-3 'in Fig. 4 is an exploded perspective view of the grill guide according to the embodiment of the present invention. 5 is an exploded cross-sectional view showing the combination of the front grill and the grill guide according to the embodiment of the present invention.

The grill core 311 may be formed in a circular shape having a size slightly smaller than the front diameter of the hub 551 and positioned in front of the hub 551. [ Further, a coupling protrusion 311a for coupling the grill guide 560 to the back surface of the grill core 311 may be further formed.

The coupling protrusion 311a is formed with a coupling hole 562a formed in the grill guide 560 so that the grill guide 560 can be fixedly mounted on the front grill 31. The coupling protrusion 311a is press- The structure and shape of the structure, such as the constrained structure, may be variously changed. Of course, the grill guide 560 may be coupled to the grill core 311 by a separate engaging member such as a screw.

The grill guide 560 may be formed in a cylindrical shape having open sides on both sides and is formed with an inclined circumferential surface so as to smoothly guide the flow of air forcedly blown by the blowing fan 550.

The grill guide 560 includes a circumferential portion 561 forming a circumferential surface and a front portion 562 and a rear portion 563 bent at opposite ends of the circumferential portion 561 to form a front surface and a rear surface, . The front portion 562 and the rear portion 563 may be formed to have a predetermined width at both ends of the peripheral portion 561 and have a front opening 564 and a rear opening 565, . The front opening 564 and the rear opening 565 may be formed to have the same size.

The front portion 562 is in contact with the grill core 311 and the coupling hole 562a is formed in the front portion 562 so that the coupling protrusion 311a can be inserted and fixed. Accordingly, the grill guide 560 can be closely fixed to the back surface of the grill core 311

The diameter A of the front portion 562 may be the same as the diameter of the grill core 311. Therefore, the air flowing along the circumference portion 561 can be discharged through the front grille 31 without interfering with the grille core 311. [

The rear portion 563 is located at a position facing the front surface of the hub 551 of the blowing fan 550 and the diameter B of the rear portion 563 is formed to correspond to the diameter of the front surface of the hub 551 . The air flowing along the hub 551 side of the blowing fan 550 can smoothly flow toward the peripheral portion 561 of the grill guide 560 and can be moved along the peripheral portion 561 .

The diameter A of the front part 562 is smaller than the diameter B of the rear part 563 so that the air blown by the blowing fan 550 is inclined So that it can smoothly flow forward along the plane.

The front portion 562 of the grill guide 560 is equal to the diameter of the grill core 311 and the rear portion 563 of the grill guide 560 is equal to the front diameter of the hub 551 do. That is, the diameter of the grill core 311 is smaller than the diameter of the front surface of the hub 551 of the blowing fan 550.

The ratio of the diameter A of the front surface portion to the diameter B of the rear surface portion is preferably 0.6 or more and 0.7 or less (0.6? A / B? 0.7)

Specifically, when the diameter ratio between the front portion 562 and the rear portion 563 is greater than 0.7, the flowability of the blown air is lowered. When the diameter ratio is smaller than 0.6, the inclination of the circumferential portion 561 is increased The air can not be moved along the circumferential portion 561 and a vortex may be generated on the surface of the circumferential portion 561. Therefore, when the diameter ratio of the front portion 562 and the rear portion 563 is between 0.6 and 0.7, the flow of air is smooth and noise is not generated at the same time.

The circumferential portion 561 may be inclined by a difference between the diameter A of the front portion 562 and the diameter B of the rear portion 563. The circumferential portion 561 may be extended so that the rear portion 563 is positioned at a distance of 10 mm to 14 mm from the front surface of the hub 551.

When the distance D between the rear portion 563 of the grill guide 560 and the front surface of the hub 551 is less than 10 mm, the gap becomes too narrow, Air flowing between the rear portion 563 and the front surface of the hub 551 becomes low pressure so that vortex can be generated. If the distance D between the rear portion 563 of the grill guide 560 and the front surface of the hub 551 is larger than 14 mm, the air is excessively spaced and flows, There is a problem that a vortex is generated and noise may be generated accordingly.

The rear portion 563 of the grill guide 560 and the hub 551 are spaced apart from each other by a distance D between 10 mm and 14 mm between the rear portion 563 of the grill guide 560 and the front surface of the hub 551, The air flowing between the front surfaces can be smoothly moved forward along the surface of the circumferential portion 561, so that the vortex is not generated and the noise can be reduced.

Particularly, since the rear portion 563 is bent and extended in the inward direction, the air flowing along the hub 551 is guided to the inlet portion between the rear portion 563 of the grill guide 560 and the front surface of the hub 551, So that the air can be flowed along the circumference portion 561. As shown in FIG.

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

6 is a view showing an air flow state inside the outdoor unit.

As shown in the figure, the fan motor 540 is driven according to the operation of the outdoor unit 1 to rotate the blowing fan 550.

External air is introduced into the outdoor unit (1) through the suction port (41) of the rear plate (40) by the rotation of the blowing fan (550). All the air flowing into the outdoor unit 1 passes through the outdoor heat exchanger 511 and is heat-exchanged with the refrigerant flowing along the outdoor heat exchanger 511 while passing through the outdoor heat exchanger 511 .

The heat-exchanged air passes through the blowing fan 550 according to the rotation of the blowing fan 550 and flows toward the front of the blowing fan 550. At this time, among the air flowing forward, the air moved along the hub 551 is directed toward the grill guide 560 side.

The rear surface 563 of the grill guide 560 and the front surface of the hub 551 are spaced apart from each other but the distance between the rear surface 563 of the grill guide 560 and the front surface of the hub 551 is small, And flows forward along the peripheral portion 561 of the grill guide 560 through the space between the rear portion 563 of the grill guide 560 and the front surface of the hub 551.

Particularly, even if the outdoor unit 1 is not operated in rated operation and the flow velocity is slow, air does not flow into the space between the rear portion 563 of the grill guide 560 and the front surface of the hub 551, So that it can flow naturally forward.

The circumferential portion 561 is formed so as to have a gentle slope so that air flowing along the hub 551 can naturally flow along the inclined outer surface of the circumferential portion 561, 561 to the outside of the outdoor unit 1 through the discharge port 314 of the front grill 31. [

By the flow of the air, it is possible to prevent a swirling phenomenon between the hub 551 and the front grille 31, to smooth the flow of air and to reduce the noise. In particular, Even in this situation, the noise is significantly reduced.

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 another embodiment of the present invention, the grill guide is integrally formed with the front grill.

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

7 is a cross-sectional view showing a structure of a front grill according to another embodiment of the present invention.

As shown in the drawing, a front grill 31 is formed on a front surface of an outdoor unit 1 according to another embodiment of the present invention. The front grill 31 includes a radial grill 312 having a plurality of concentric circles formed at regular intervals around a grill core 311 at the center thereof and a radial grill 312 having a linear shape crossing the radial grill 312, A plurality of discharge ports 314 are formed by the discharge port 313 so that air can be discharged when the blowing fan 550 is driven.

The grill core 311 may be formed in a circular shape and the periphery of the grill core 311 may extend outward to form a grill guide 570. The grill guide 570 may be formed in a cylindrical shape that opens rearward and may be formed at the same time during injection molding of the front grill 31. [

The grill guide 570 may include a circumferential portion 571 and a rear portion 573. The circumferential portion 571 forms an inclined circumferential surface of the grill guide 570 and may extend to a position adjacent to the front surface of the hub 551 of the blowing fan 550. At this time, the distance between the rear end of the grill guide 570 and the front surface of the hub 551 is formed to be 10 mm to 14 mm as in the above-described embodiment.

The ratio of the diameter of the front end of the grill guide 570 to the diameter of the rear end of the grill guide 570 is in the range of 0.6 to 0.7 And the front end of the grill guide 570 may be formed to have a smaller diameter than the rear end.

The air blown by the air blowing fan 550 is moved forward along the circumference portion 571 so that the air is blown toward the discharge port 314 of the front grill 31, As shown in Fig.

The rear portion 573 forms the rear surface of the grill guide 570 and is bent inward along the rear end of the circumferential portion 571. Accordingly, the rear portion 573 may be formed with a rear opening 575, and the rear portion 573 may be disposed to face the front surface of the hub 551.

Since the grill guide 570 is integrally formed with the front grill 31, the grill guide 570 can be injection-molded together with the front grill 31 without a separate assembly process. Therefore, the grill guide 570 can naturally be positioned in front of the extension line of the hub of the blowing fan 550 through the assembly of the front grill 31.

In this state, the rear surface of the grill guide 570 and the hub 551 of the blowing fan 550 are adjacent to each other, and air flowing toward the hub 551 passes through the hub 551, To flow along the circumferential portion 571 of the piston 570.

At this time, since the gap between the grill guide 570 and the hub 551 is narrow, air passing through the blowing fan 550 is vortexed in front of the hub 551 even when the flow velocity is low And can be smoothly discharged through the discharge port 314 of the front grill 31 through the grill guide 570 without being interrupted.

Claims (12)

A front grille having a plurality of discharge ports through which air is discharged;
A blower fan disposed at a position spaced apart from the front grille and having a hub at a central portion thereof and a plurality of blades formed at a circumferential surface of the hub to discharge air in an axial direction;
And a grill guide extending from a rear surface of the grill pan to the blower fan side and disposed on the same extension line as the hub and guiding the discharged air.
The method according to claim 1,
Wherein the grill guide is formed in a cylindrical shape and is formed to have the same diameter as the front surface of the hub positioned at the opposite position.
3. The method of claim 2,
Wherein the grill guide is formed so that its diameter decreases gradually toward the front grill side, and the circumferential surface of the grill guide is inclined.
The method according to claim 1,
The grill guide
A circumferential portion forming an inclined circumferential surface;
A front portion bent inwardly from one end of the peripheral portion and engaged with the grill guide;
And a rear portion folded inwardly from the other end of the peripheral portion so as to face the front surface of the hub.
5. The method of claim 4,
And an opening through the grill guide is formed at the center of the front portion and the rear portion of the air conditioner.
5. The method of claim 4,
Wherein an engaging projection and a coupling hole are formed on a rear surface of the front part and the front grille to be engaged with each other so that the grill guide can be fixedly mounted.
5. The method of claim 4,
Wherein a ratio of a diameter of the front portion to a diameter of the rear portion is 0.6 to 0.7.
5. The method of claim 4,
Wherein the rear portion and the front surface of the hub are spaced approximately 10 mm to 14 mm apart.
The method according to claim 1,
A circular grill core is formed at the center of the front grill extending on the same line as the hub,
And the grill guide extends rearward along the periphery of the grill core.
10. The method of claim 9,
Wherein the grill core is formed to be smaller than the diameter of the hub,
Wherein the diameter of the extended end of the grill guide is the same as the diameter of the hub, and the circumferential surface of the grill guide is inclined.
10. The method of claim 9,
The extended end of the grill guide is formed to be open,
Wherein an opening portion of the grill guide is bent inward to form a rear portion adjacent to a front surface of the hub.
10. The method of claim 9,
Wherein the grill guide is integrally formed with the front grille by being molded together with the front grille during the molding of the front grille.
KR1020150019512A 2015-02-09 2015-02-09 Outdoor unit of air conditioner KR20160097617A (en)

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KR1020150019512A KR20160097617A (en) 2015-02-09 2015-02-09 Outdoor unit of air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150019512A KR20160097617A (en) 2015-02-09 2015-02-09 Outdoor unit of air conditioner

Publications (1)

Publication Number Publication Date
KR20160097617A true KR20160097617A (en) 2016-08-18

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Family Applications (1)

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KR1020150019512A KR20160097617A (en) 2015-02-09 2015-02-09 Outdoor unit of air conditioner

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