KR20160081718A - Outdoor unit of air conditioner - Google Patents

Abstract

According to an embodiment of the present invention, an air conditioner comprises: a blower fan making forcible flow of air in an axial direction; a motor rotating the blower fan; and a motor mount disposed to cross an area of the blower fan in a lower portion of the motor and supporting the motor. A slope unit guiding the upward flow of the air in an oblique direction is formed on a lower surface of the motor mount.

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.

On the other hand, in recent air conditioners, a multi-type air conditioner in which a plurality of outdoor units are disposed outside the building such as a roof of a building, and an indoor unit independently cooling and heating each indoor space is connected to the outdoor unit to constitute a refrigerant circuit .

In addition, the multi-type air conditioner is on the increase in size, and the capacity of the outdoor unit is also increasing. Accordingly, the number or size of the fans provided inside the outdoor unit is increased, and noise due to driving of the fan is increased.

In order to solve such a problem, Korean Patent Laid-Open Publication No. 10-2013-0088434 discloses an air conditioner in which a part of a motor mount for supporting a blowing fan is cut out to reduce noise during air flow by a blowing fan.

An object of the present invention is to provide an outdoor unit of an air conditioner capable of reducing noise generated during rotation of a blowing fan of an outdoor unit.

The outdoor unit of the air conditioner according to the embodiment of the present invention includes a blowing fan for forcing the flow of air in the axial direction; A motor for rotating the blowing fan; And a motor mount for supporting the motor, the motor mount being disposed below the motor so as to cross the blowing fan region, and a slope portion for guiding the upward flow of the air upward is formed on the lower surface of the motor mount .

And the motor mount is extended so as to connect the opposite surfaces of the inside of the outdoor unit.

The inclined portion is formed such that two inclined surfaces are in contact with each other, and each inclined surface has an upward inclination toward the outer side.

Wherein the motor mount is formed by bending a plate-like material a plurality of times and forming the inclined portion; An upper surface facing the lower surface; The lower surface and the upper surface are formed as side surfaces that are connected to each other to be spaced apart from each other.

Wherein the inclined portion is formed in a longitudinal direction of the motor mount and protrudes downward.

And a mounting hole for fixing the motor is further formed on the upper surface.

And a cutout is formed on the upper surface, the cutout being formed by cutting both sides of the mounting hole.

A planar seating portion is formed at both ends of the lower surface so that the motor mount can be seated inside the outdoor unit, and the inclined portion is formed between the seating portions.

Wherein the inclined portion includes: a first inclined surface extending downward at a lower end of the side surface; And a second inclined surface extending upward from the lower end of the first inclined surface, wherein the second inclined surface extends further outward than the upper surface.

Wherein a first end portion and a second end portion are formed at both ends of the lower surface so as to be bent further upward than the upper surface and a bent portion bent outward is formed at the upper ends of the first end portion and the second end portion, And the bent portions are seated on the inside of the outdoor unit formed stepwise.

Further, the outdoor unit of the air conditioner according to the embodiment of the present invention includes: a pair of chassis frames fixedly mounted on opposite sides of the outdoor unit; A plurality of fan motor assemblies including a blowing fan for forcing an air flow in the axial direction and a motor for rotating the blowing fan; And a motor mount having both ends connected to the pair of chassis frames across the blowing fan region and having inclined surfaces having inclined surfaces for guiding the flow of air to the lower surface thereof; Wherein the motor mount comprises an inner motor mount adjacent to the neighboring fan motor assembly and an outer motor mount positioned further outward than the inner motor mount, wherein the lateral width of the inner motor mount is larger than the lateral width of the outer motor mount And is formed to be narrower than the lateral width.

According to the outdoor unit of the air conditioner according to the embodiment of the present invention, since the inclined portion is formed on the lower surface of the motor mount on which the fan motor assembly is mounted, the resistance of the air can be reduced when the air flows upward from the downward direction, And the occurrence of noise can be reduced.

Further, the inclined portion can be formed in a forming manner, so that the strength of the motor mount can be further improved.

In addition, since the second inclined portion of the inclined portion extends outwardly from the opened surface and prevents the airflow from flowing from the lower portion to the upper portion of the upper portion, It is possible to prevent the noise caused by the noise and improve the fluidity of the air.

When a plurality of fan motor assemblies are provided, the width of the inner motor mount disposed between adjacent blowing fans is narrower than the width of the outer motor mount so that the resistance of the air flowing into the space between the blowing fans And the fluidity is improved, so that the effect of reducing noise can be expected.

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 showing a combined structure of structures constituting the exterior of the outdoor unit.
3 is a plan view showing the inside of the outdoor unit.
4 is an exploded perspective view showing a coupling structure of a chassis frame and a fan motor assembly according to an embodiment of the present invention.
5 is a perspective view of a motor mount according to an embodiment of the present invention.
6 is a side view of the motor mount.
7 is a cross-sectional view taken along line 7-7 'of FIG.
8 is a cross-sectional view of a motor mount according to another embodiment of the present invention.
9 is an exploded perspective view showing a coupling structure of a chassis frame and a fan motor assembly according to another embodiment of the present invention.
10 is a cross-sectional view taken along line 10a-10a 'and 10b-10b' of FIG.

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 showing a combined structure of structures constituting the exterior of the outdoor unit. 3 is a plan view showing the inside of the outdoor unit.

As shown in the drawings, an air conditioner according to an embodiment of the present invention includes an outdoor unit 1 disposed outdoors, an indoor unit (not shown) connected to the outdoor unit 1 through a refrigerant pipe, . The indoor unit includes an indoor heat exchanger (not shown) for heat exchange with air in the indoor space.

The outdoor unit 1 may have an overall appearance formed by the top cover 10, the outboard panel, the base pan 40, and the side frames.

The top cover 10 is provided on an upper surface of the outdoor unit 1 to form an upper surface of the outdoor unit 1. A pair of the discharge ports 11 are formed in the top cover 10, So that the heat-exchanged air inside the outdoor unit (1) can be discharged to the outside of the outdoor unit (1). The discharge port 11 is equipped with a discharge grill 111 to prevent foreign substances from entering the discharge port 11.

Meanwhile, side supporters 20 are provided at four corners of the outdoor unit 1. The side supporter 20 may be bent to form a corner of the outdoor unit 1 by connecting the top cover 10 and the base pan 40 and may be formed in a pipe shape . An outer panel is provided between the side supporters 20 to form a circumferential outer surface of the outdoor unit 1.

The outboard panel includes a pair of side panels 31 forming left and right side surfaces of the outdoor unit 1, a front panel 34 forming a front surface of the outdoor unit 1, (Not shown).

The side panel 31 forms a left side surface and a right side surface of the outdoor unit 1. The side panel 31 includes a pair of side supporters 20 and a pair of side supporters 20, As shown in Fig.

The upper portion of the side panel 31, that is, the area corresponding to the shroud 90 inside the outdoor unit 1 is shielded, and a plurality of suction holes may be formed in the remaining area except the shielded area. The inlet port 31 is formed to be constant throughout the area where the outdoor heat exchanger 55 for heat exchange with the air to be sucked is located and guides the air sucked from the side to pass through the outdoor heat exchanger 55 .

Of course, the arrangement of the inlet port 31 formed in the side panel 31 can be changed according to the structure and arrangement of the outdoor heat exchanger 55, and the inlet port 31 is connected to the outdoor heat exchanger 55 And the air that is shielded and sucked through the portion not corresponding to the outdoor heat exchanger (55) passes through the outdoor heat exchanger (55).

A rear panel (32) is provided on a rear surface of the outdoor unit (1) at a portion corresponding to a portion where the shroud (90) is located. A suction grille 33 is formed from the lower end of the rear panel 32 to the base pan 40. The suction grille 33 is formed in a grid shape by a plurality of wires and is formed to have a size corresponding to that of the outdoor heat exchanger 55 located on the rear surface of the outdoor unit 1. [ Accordingly, the suction grille 33 protects the outdoor heat exchanger 55 from external impacts or foreign matter, and allows the outdoor air to flow smoothly.

Although not shown in detail, the suction grille 33 is fixed to the rear panel 32 at the upper end, the lower end is fixed to the base pan 40, and both right and left side surfaces are fixed to the side supporter 20 .

Although the rear surface of the outdoor unit 1 is formed by the rear panel 32 and the suction grille 33 in the embodiment of the present invention, May be formed in the same shape.

A plurality of front panels 34 are provided on the front surface of the outdoor unit 1. The front panel 34 may include a service panel 35, a piping panel 36, and a suction panel 37.

In detail, the front surface of the outdoor unit 1 is divided into left and right sides with respect to a point where the outdoor heat exchanger 55 extends. That is, the service panel 35 and the piping panel 36 are provided on the left side of the outdoor unit 1, and the suction panel 37 is provided on the right side of the outdoor unit 1.

The service panel 35 is disposed at the left end of the outdoor unit 1 at a position corresponding to the extended end of the outdoor heat exchanger 55. The service panel 35 is configured to be detachable independently in a state in which all of the front panels 34 are mounted. Accordingly, the service panel 35 is detachably installed so as to be able to access the internal components of the outdoor unit 1.

Particularly, when the service panel 35 is opened, the entire control box 56 can be exposed forward, and each of the components constituting the refrigeration cycle and the refrigerant pipe connecting them can be easily accessed.

The piping panel 36 is provided between the lower end of the service panel 35 and the base pan 40 for passing and fixing the indoor unit connecting pipe connecting the outdoor unit 1 and the indoor unit. The pipe panel 36 is formed to have the same width as the service panel 35 and the service panel 35 is detached in a state where the pipe panel 36 is fixed to the base pan 40 Respectively.

The piping panel 36 is provided with a piping installation hole 361 through which a plurality of indoor unit connection piping can be connected to the indoor unit. A service valve is provided in the pipe installation hole 361 to facilitate connection and installation of the indoor unit connection pipe connected to the indoor unit. The piping panel 36 may be integrally formed with the service panel 35 as required.

The suction panel 37 forms the remaining front surface of the outdoor unit 1 except for the service panel 35 and the piping panel 36. The suction panel 37 extends from the top cover 10 to the base pan 40 and extends from the side supporter 20 to the service panel 35 and the piping panel 36.

The suction panel 37 may extend to an end of the outdoor heat exchanger 55 and may be disposed inside the outdoor unit 1 and may have the coupling plate 57 fixed to the end of the outdoor heat exchanger 55. [ And the end of the suction panel 37 are coupled to each other. Accordingly, the outdoor heat exchanger (55) can be stably fixed by the suction panel (37).

The suction panel 37 is also configured to shield the upper portion corresponding to the position of the shroud 90. A plurality of suction ports 371 are formed in the remaining area corresponding to the area of the outdoor heat exchanger 55, So that air can flow to the outdoor heat exchanger (55) side.

On the other hand, the bottom surface of the outdoor unit (1) is formed by the base pan (40). The outdoor unit 1 may be supported by the base frame 41 so as to be spaced apart from the floor surface. The upper surface of the base pan 40 may be provided with a compressor 51 and an outdoor heat exchanger 55 for constituting a refrigeration cycle.

In detail, the compressor 51 may be provided on the upper surface of the base frame 41. The compressor (51) compresses the gaseous refrigerant at a high temperature and a high pressure. The compressor (51) is composed of a constant speed compressor which rotates at a constant speed and compresses to a constant capacity, an inverter And a compressor may be respectively provided.

The refrigerant pipe connected to the outlet of each of the compressors 51 is provided with an oil separator 52 for separating the oil contained in the refrigerant discharged from the compressor 51 to separate the oil in the discharged refrigerant, And can be recovered by the compressor (51).

A four-way valve is provided at one side of the outdoor unit 1 to selectively supply the refrigerant passing through the oil separator 52 to the indoor heat exchanger (not shown) or the outdoor heat exchanger 55, (53) is provided.

The four-way valve 53 is respectively connected to the indoor heat exchanger 55, the outdoor heat exchanger 55, the compressor 51 and the accumulator 54. The refrigerant discharged from the compressor 51 is cooled And is configured to be able to switch the flow path so as to be selectively supplied to the indoor heat exchanger and the outdoor heat exchanger (55).

The accumulator 54 is connected to the indoor heat exchanger and the four-way valve 53 at one side of the base fan 40. The accumulator 54 separates the refrigerant in the liquid state from the refrigerant in the gaseous state so that the refrigerant in the liquid state is stored and the gaseous refrigerant can be supplied to the compressor 51.

The outdoor heat exchanger 55 exchanges heat between the outdoor air and the refrigerant so that outdoor air is forcibly passed through the outdoor heat exchanger 55 by the blowing fan 81 of the outdoor heat exchanger 55, So that heat exchange can be performed.

The outdoor heat exchanger (55) is formed along the periphery of the base pan (40) and is disposed over four sides of the outdoor unit (1). At this time, both ends of the outdoor unit 1 are arranged to be apart from each other at a corner formed by the left side and the front side of the outdoor unit 1, and a predetermined space is formed. The space between both ends of the outdoor unit (1) is opened when the service panel (35) is separated, and the various pipes constituting the refrigeration cycle and the control box (56) can be accessed through this space.

The outdoor heat exchanger 55 may extend from the base pan 40 to a height adjacent to the blowing fan 81. Therefore, the outdoor heat exchanger (55) is formed so as to cover the intake port from the inside of the outdoor unit (1), so that all the air passing through the inlet port can pass through the outdoor heat exchanger (55).

On the other hand, a chassis frame 60 is provided on the outdoor heat exchanger 55. The chassis frame 60 is configured such that the shroud 90 and the fan motor assembly 80 can be fixed inside the outdoor unit 1. The chassis frame 60 may be connected to the outboards to form an upper skeleton of the outdoor unit 1.

A shroud 90 is mounted on the inside upper part of the outdoor unit 1 and a fan motor assembly 80 is installed on the inside of the shroud 90. The shroud 90 is for guiding the discharged air, and is open in the up and down direction. The side surface of the shroud 90 is formed to round in a shape depressed inward. The opening is formed to be wider toward the upper side from the center. The upper surface of the shroud 90 has the same shape as that of the discharge port 11 so that the discharge air can be efficiently guided to the discharge port 11. [

In detail, the chassis frame 60 may be positioned above the outdoor heat exchanger 55 and may include a lower end of the shielded portion of the rear panel 32, the side panel 31 and the front panel 34, May be coupled to corresponding locations.

The chassis frame 60 is composed of a front chassis frame 60 provided at the front side and a rear chassis frame 60 provided at the rear side. Both the left and right ends of the front chassis frame 60 and the rear chassis frame 60 can be fixedly mounted on the inner side surfaces of the side panels 31 on both the left and right sides. The front surface of the front frame 61 is fixed to the inner surface of the front panel 34 and the bottom surface of the rear frame 62 is coupled to the bottom surface of the rear panel 32.

A plurality of motor mounts 70 are connected between the front chassis frame 60 and the rear chassis frame 60 and the fan motor assembly 80 is mounted on the motor mount 70. The shroud 90 guiding the discharged air can be fixedly mounted on the front chassis frame 60 and the rear chassis frame 60, respectively.

The shroud 90 is for guiding the discharge air and is formed in a size such that the fan motor assembly 80 can be received therein. The shroud 90 is vertically opened and the side surface thereof is rounded to a shape depressed inwardly toward the center, and the opening is formed to be wider toward the upper side from the center. The upper surface of the shroud 90 has the same shape as that of the discharge port 11 so that the discharge air can be efficiently guided to the discharge port 11. [

4 is an exploded perspective view showing a coupling structure of a chassis frame and a fan motor assembly according to an embodiment of the present invention.

As shown in the figure, the chassis frame 60 is formed by vertically folding the plate material a plurality of times to form a first surface 63, a second surface 64, a third surface 65, 66, respectively.

The first surface 63 may be vertical to the front panel 34 or the rear panel 32 in a vertical direction. The second surface 64 is bent inward of the outdoor unit 1 at the lower end of the first surface 63 and the third surface 65 is bent at the extended end of the second surface 64 And vertically bent downward. At this time, both ends of the motor mount 70 are seated at the corners formed by the second surface 64 and the third surface 65. The extended lower end of the third surface 65 is vertically bent toward the inside of the outdoor unit 1 to form the fourth surface 66.

In detail, a bent portion 46 bent at both ends of the motor mount 70 is seated on the second surface 64, and both ends of the motor mount 70 are in close contact with the third surface 65. A seating portion 732 formed on both sides of the motor mount 70 is formed to be seated on the fourth surface 66. An engaging member 742 fastened to the outside of the chassis frame 60 passes through the third surface 65 of the chassis frame 60 and can be fastened to the side surface of the motor mount 70, Therefore, the chassis frame 60 and the motor mount 70 can maintain a stable fixed state.

A motor mount 70 is formed between the front chassis frame 60 and the rear chassis frame 60. When the two fan motor assemblies 80 are provided as shown in the drawing, the four motor mounts 70 are disposed so that one pair of the motor mounts 70 fix the one fan motor assembly 80 . The plurality of motor mounts 70 have the same structure and may be provided in units of two according to the number of the fan motor assemblies 80.

The fan motor assembly 80 may include the blowing fan 81 and the motor 82. The blowing fan 81 is an axial flow fan sucked and discharged in the axial direction, and a plurality of blades 811 can be arranged with a predetermined curvature in the circumferential direction. At this time, the size of the blade 811 is formed to be large enough to be accommodated inside the shroud 90.

A motor 82 is provided below the blowing fan 81 and a rotating shaft of the motor 82 is connected to the blowing fan 81. The motor 82 includes a housing for receiving a motor 82, and a bridge 821 extending laterally extends from the housing. The bridge 821 allows the motor 82 to be mounted on the motor mount 70, and two bridges 821 are provided on both sides of the housing, and they can be integrally formed with the housing. Of course, the bridge 821 may be formed as a separate member, or may have another structure that is fixed directly to the motor 82 and not to the housing.

Hereinafter, the motor mount 70 will be described in more detail. Although a plurality of motor mounts 70 are provided, the structure and shape of the motor mount 70 are the same, so that one motor mount 70 will be described.

5 is a perspective view of a motor mount according to an embodiment of the present invention. 6 is a side view of the motor mount. 7 is a cross-sectional view taken along line 7-7 'of FIG.

As shown in the figure, the motor mount 70 is formed by bending a plate-like metal material and includes a top surface 71 and a bottom surface 73 and a side surface 72 connecting the top surface 71 and the bottom surface 73 And a first end portion 74 and a second end portion 75 which form both extended ends in the longitudinal direction.

In detail, the motor mount 70 is further provided with an upper surface 71 and a lower surface 73 which are open on the side facing the side surface 72, and are connected to the first end portion 74 and the second end portion 75 side . Since the motor mount 70 is located on the flow path of the air generated by the blowing fan 81, the widths of the upper surface 71 and the lower surface 73 are minimized in order to minimize the resistance of the air. Of course, the motor mount 70 may be formed to minimize the width of the motor mount 70, while maintaining sufficient strength when the fan motor assembly 80 is mounted.

The upper surface 71 of the motor mount 70 is formed as a horizontal surface with respect to the top cover 10 and a plurality of mounting holes 711 for coupling the bridges 821 are formed. The mounting holes 711 may be formed with a plurality of holes at regular intervals so that motors of various sizes and specifications can be mounted.

In addition, a cutout 712 is formed on both sides of the mounting hole 711. The cut-off portion 712 prevents air that flows due to the rotation of the blowing fan 81 from flowing into the opening facing the side surface 72 to collide with the upper surface 71, At least a part of the area corresponding to the blade 811 of the blowing fan 81 may be cut out.

The side surface (72) is formed with a forming portion (721) that is depressed in the outward direction. The forming portion 721 is provided to reinforce the strength of the motor mount 70. The forming portion 721 can be formed to have a long length to compensate for a structure such as a load or a twist.

The forming section 721 is formed in the longitudinal direction of the side surface 72 and may have a single long forming section 721 except for a part of both ends, A forming portion 721 may be formed.

On the other hand, an inclined portion 731 is formed on the lower surface 73. The inclined portion 731 flows through the inclined surfaces 731a and 731b to flow the air that is to be struck against the lower surface of the motor mount 70 due to the nature of the flow that flows upward and downward when the blowing fan 81 rotates So that the noise generated when the air hits the vehicle can be reduced.

The inclined portion 731 may have a structure in which the inclined portion 731 protrudes downward, and may have a structure in which two inclined surfaces, that is, a first inclined surface 731a and a second inclined surface 731b meet. The inclined portion 731 may be formed by forming and extending along the longitudinal direction of the lower surface due to the characteristics of the structure of the motor mount 70 formed of a plate material. Since the inclined portion 731 is formed in the longitudinal direction of the motor mount 70 in addition to improving the flow resistance of the air, the structure of the motor mount 70, like the forming portion 721, It can act to reinforce the strength.

The inclined portion 731 is not formed at both ends of the lower surface 73 and the seating portion 732 is formed at both ends of the lower surface 73. The seating portion 732 is seated on the fourth surface 66 when the motor mount 70 is mounted on the chassis frame 60 and has a length corresponding to the width of the fourth surface 66 The branch is formed in a planar shape. Therefore, the inclined portion 731 may be formed in the entirety between the seating portions 732 formed at both ends.

The first end portion 74 and the second end portion 75 are formed to be bent upward in a state where the lower surface extends further and the motor mount 70 contacts the side surface 72 and the upper surface 71, As shown in FIG. The first end portion 74 and the second end portion 75 extend further than the upper surface 71 and the first end portion 74 and the second end portion 75 extend from the third surface 65, As shown in Fig. An outwardly bent bent portion 46 is formed on the extended end of the first end portion 74 and the second end portion 75. The bent portion 46 is seated on the second surface 64 .

Thus, when the motor mount 70 is mounted to the chassis frame 60, the seating portion 732 contacts the fourth surface 66 and the first end portion 74 and the second end portion 75 By contacting the third surface 65, the motor mount 70 and the chassis frame 60 provide a primary seating structure. The first end portion 74 and the second end portion 75 are in contact with the third surface 65 and the bending portion 76 is in contact with the second surface 64, And the chassis frame 60 provide a secondary seating structure.

That is, the motor mount 70 and the chassis frame 60 may have a structure in which they are two-seated by two stepped structures, and a more stable mounting structure and a rigid coupling structure can be provided.

The reinforcing portion 713 may be formed at both ends of the upper surface 71 and may include a reinforcing portion 713 which is bent downward at the both ends of the first end portion 74 and the second end portion 75, So that it can penetrate when the coupling member 742 is fastened. To this end, fasteners 741 are formed at the same positions on the third surface 65 of the chassis frame 60 and the reinforcing portion 713 of the first end portion 74 and the second end portion 75, The member 742 can be pierced.

Hereinafter, the flow of air by the operation of the outdoor unit will be described.

When the operation of the air conditioner is started, the refrigerant is compressed by driving the compressor (51), and the compressed refrigerant circulates in the refrigeration cycle. At this time, when the air conditioner operates in the cooling mode, the outdoor heat exchanger 55 functions as a condenser, and the flow of air is forced for heat exchange with the refrigerant passing through the outdoor heat exchanger 55.

At the same time when the compressor 51 is driven, the blowing fan 81 rotates by driving the fan motor. The air outside the outdoor unit 1 is sucked through the four surfaces of the outdoor unit 1 by the rotation of the blowing fan 81 and passes through the outdoor heat exchanger 55, The air introduced into the outdoor unit 1 passes through the shroud 90 and can be discharged to the discharge port 11 through the blowing fan 81. [

At this time, the air flowing from the lower part of the outdoor unit 1 toward the discharge port 11 flows along the inclined part 731 of the motor mount 70, so that the flow resistance is reduced, So that no noise is generated.

In detail, the air flowing upward through the outdoor heat exchanger (55) by the rotation of the blowing fan (81) is brought into contact with the lower surface of the motor mount (70). Since the inclined portion 731 is formed on the lower surface of the motor mount 70, air flowing upward is brought into contact with the end portion of the inclined portion 731. Therefore, since the air flowing upward flows naturally along the inclined surfaces 731a and 731b of the inclined portion 731, the air resistance is reduced, thereby improving the flow and reducing the noise.

The air passing through the motor mount 70 flows into the interior of the shroud 90 through the motor mount 70 and is discharged to the outside through the discharge port 11 through the blowing fan 81 .

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

Another aspect of the present invention is characterized in that one surface of the inclined portion formed on the lower surface of the motor mount extends outwardly from the upper surface to improve the fluidity of the air.

Other configurations of the present invention are the same as those of the above-described embodiment except for the bottom shape of the motor mount, and thus the same reference numerals are used for the same components, and a detailed description thereof will be omitted.

8 is a cross-sectional view of a motor mount according to another embodiment of the present invention.

As shown in the figure, the motor mount 70 'according to another embodiment of the present invention includes a top surface 71 and a bottom surface 73, and a side surface 72 connecting the top surface 71 and the bottom surface 73 And includes a first end 74 and a second end (not shown) at both ends.

A forming portion 721 is formed on the side surface 72 to reinforce the strength and the inclined portion 733 is formed on the lower surface 73. The inclined portion 733 includes a first inclined surface 731a extending downward from the side surface and a third inclined surface 731c extending upward from the lower end of the first inclined surface 731a .

At this time, the third inclined surface 731c may extend so as to protrude laterally from the extended end of the upper surface 71, and may extend to a position lower than the upper surface 71. Therefore, when air flows upward from below by the driving of the blowing fan 81, the air flowing along the third inclined surface 731c flows into the inner space of the motor mount 70 ' 71, the lower surface 73, and the side surface 72, so that a vortex is not generated and a smooth flow is obtained. In addition, through the improvement of the air flow, noise generation is reduced even when the blowing fan 81 is driven.

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

Another embodiment of the present invention is characterized in that in the structure of the chassis frame in which a plurality of fan motor assemblies are mounted, the width of the inner motor mount is narrower than the width of the outer motor mount.

The other embodiments of the present invention are the same as those of the above-described embodiment except for the above-mentioned motor mount, and therefore, the same reference numerals are used for the same components, and a detailed description thereof will be omitted.

9 is an exploded perspective view showing a coupling structure of a chassis frame and a fan motor assembly according to another embodiment of the present invention. 10 is a cross-sectional view taken along lines 10a-10a 'and 10b-10b' of FIG.

As shown in the drawing, a pair of fan motor assemblies 80a and 80b are provided between the front chassis frame 61 and the rear chassis frame 62, and the pair of fan motor assemblies 80a and 80b The motor mounts 70a and 70b are provided. Both ends of the motor mounts 70a and 70b are fixed to the front chassis frame 61 and the rear chassis frame 62, respectively.

The motor mounts 70a and 70b are provided with an outer motor mount 70a located outside and an inner motor mount 70b positioned inside the motor 82 in order to support one motor 82 Lt; / RTI >

The structure of the inner motor mount 70b and the outer motor mount 70a is the same as that of the above embodiment and includes the upper surface 71 formed with the mounting hole 711 and the side surface 72 formed with the forming portion 721, A lower surface 73 formed with an inclined portion 731 and a seating portion 732 and a first end portion 74 and a second end portion (not shown) and a bent portion 76 coupled with the chassis frame 60 .

Meanwhile, the inner motor mount 70b is located closer to the fan motor assemblies 80a and 80b than the outer motor mount 70a. When the pair of fan motor assemblies 80a and 80b are provided, the respective inner motor mounts 70b disposed on both sides are disposed adjacent to each other.

When the pair of blowing fans 81 are simultaneously driven, the flow velocity of the space between the blowing fans 81 becomes faster than the outside of each blowing fan 81. Therefore, the width of the inner motor mount 70b is narrowed to further reduce the noise in the inner motor mount 70b positioned between the blowing fans 81 relatively.

The lateral width W1 of the outer motor mount 70a or the widths of the upper surface 71 and the lower surface 73 may be equal to or greater than the width W2 or the upper surface 71 of the inner motor mount 70b Is formed to be larger than the width of the lower surface (73). Therefore, the inner motor mount 70b can further reduce the resistance of the air flowing upwardly from below, thereby reducing the noise that can be generated by the fast flow velocity.

Claims (11)

A blowing fan for forcing the flow of air in the axial direction;
A motor for rotating the blowing fan;
And a motor mount disposed below the motor and across the blower fan region to support the motor,
Wherein an inclined portion for guiding the upward flow of air in an oblique direction is formed on the lower surface of the motor mount.
The method according to claim 1,
Wherein the motor mount is extended to connect the facing surfaces of the inside of the outdoor unit.
The method according to claim 1,
Wherein the inclined portion is formed so that two inclined surfaces contact each other, and each inclined surface has an upward inclination toward the outer side.
The method according to claim 1,
The motor mount is formed by bending a plate-like material many times,
A lower surface defining the inclined portion;
An upper surface facing the lower surface;
And the side surface and the top surface are spaced apart from each other and connected to each other.
5. The method of claim 4,
Wherein the inclined portion is formed in a longitudinal direction of the motor mount and protrudes downward.
5. The method of claim 4,
Wherein a mounting hole for fixing the motor is further formed on the upper surface.
The method according to claim 6,
Wherein the upper surface is further provided with a cut-out portion formed by cutting both sides of the mounting hole.
5. The method of claim 4,
A planar seating portion is formed at both ends of the lower surface so that the motor mount can be seated inside the outdoor unit,
Wherein the inclined portion is formed between the seat portion and the seat portion.
5. The method of claim 4,
The inclined portion,
A first inclined surface extending downward at a lower end of the side surface;
And a second inclined surface extending upward from the lower end of the first inclined surface,
Wherein the second inclined surface extends further outward than the upper surface.
5. The method of claim 4,
Wherein a first end portion and a second end portion are formed at both ends of the lower surface so as to be bent further upward than the upper surface and a bent portion bent outward is formed at an upper end of the first end portion and the second end portion,
Wherein the first end portion, the second end portion, and the bent portion are seated inside the outdoor unit formed stepwise.
A pair of chassis frames fixedly mounted on opposite sides of the outdoor unit;
A plurality of fan motor assemblies including a blowing fan for forcing an air flow in the axial direction and a motor for rotating the blowing fan;
And a motor mount having both ends connected to the pair of chassis frames across the blowing fan region and having inclined surfaces having inclined surfaces for guiding the flow of air to the lower surface thereof;
The motor mount
An inner motor mount adjacent to the adjacent fan motor assembly,
And an outer motor mount positioned further outward than the inner motor mount,
Wherein a width of the inner motor mount in the lateral direction is narrower than a width in the lateral direction of the outer motor mount.

Images