KR20180044165A - Air conditioner - Google Patents

Abstract

Disclosed is an air conditioner equipped with a stabilizer having an improved structure to reduce air-blowing noise. The air conditioner comprises: a main body having a suction port and a discharge port; a heat exchanger provided in the main body; a crossflow fan configured to discharge air heat-exchanged by the heat exchanger to the discharge port; and a stabilizer located adjacent to the crossflow fan, and comprising a guide section having a first guide portion configured to guide airflow flowing in the main body by the crossflow fan to a suction region and a second guide portion configured to guide the airflow to a discharge region, and a flow separation section connected to the guide section, wherein a location of the flow separation section varies in an axial direction of the crossflow fan and in a rotational direction of the crossflow fan.

Description

AIR CONDITIONER

The present invention relates to an air conditioner equipped with an improved stabilizer structure so as to reduce air noise.

The air conditioner includes a stand-type air conditioner installed on the floor of a room for cooling or heating a relatively large indoor space and a wall-mounted air conditioner installed on the wall of the room for cooling or heating a small indoor space .

The air conditioner is a device that internally mounts a refrigeration cycle device including a compressor, a condenser, a capillary tube, a heat exchanger, and an electronic expansion valve, and sucks and discharges the air in the room to cool or heat the room.

The air conditioner has an integrated type in which an indoor unit and an outdoor unit are integrally provided, and a separate type in which an indoor unit and an outdoor unit are separately provided. In recent years, a separate type air conditioner has been used.

The indoor unit includes a drainage tray unit for collecting and draining condensed water generated in the heat exchanger, a transverse fan, and a stevia gasifier. The outdoor unit includes a compressor, a condenser, .

When the power is supplied to the air conditioner, the room air is sucked into the main body by the rotation of the cross flow fan, the air sucked into the main body by the cross flow fan is heat-exchanged by the heat exchanger, And is discharged.

In the case of cooling through the air conditioner, the cold air heat exchanged by the heat exchanger discharged into the room is circulated inside the room, and the room is kept in a pleasant state by repeating the process of being sucked into the indoor unit of the air conditioner.

Since the indoor unit of the air conditioner is installed in the room, the discharged air stream must be stable, the air volume to be discharged must be large , and moreover, a quiet characteristic is required.

One aspect of the present invention discloses an air conditioner that improves the structure of a cross section of a stator vane in consideration of the flow characteristics of air discharged by a cross flow fan.

One aspect of the present invention discloses an air conditioner that improves the arrangement and position of the stator vane so as to reduce the flow loss caused by flow fluctuations caused by the rear guide.

One aspect of the present invention discloses an air conditioner in which the shape of the stabilizer is improved so that the air discharged by the cross flow fan can reduce the noise generated due to interference between the plurality of unit fans of the cross flow fan.

The air conditioner according to the present invention includes a main body having an inlet and a discharge port, a heat exchanger provided inside the main body, a cross flow fan discharging air heat-exchanged by the heat exchanger to the discharge port, A guide portion including a first guide portion for guiding the airflow flowing in the main body of the transverse fan to the suction region and a second guide portion for guiding to the discharge region by the transverse fan, And a stator vane having a flow dividing portion in which the position of the stator vane is changed in the rotating direction of the cross-flow fan.

The flow dividing portion may have a plurality of curved shapes in the axial direction of the cross flow fan.

Wherein the fan separating portion includes a plurality of fan engaging portions that are connected to the first guide portion and extend in the axial direction of the transverse fan, Can be arranged in different lengths.

Wherein the cross flow fan includes a plurality of unit fans connected along the axial direction of the cross flow fan and a plurality of connection plates disposed between the plurality of unit fans and connecting the plurality of unit fans, And a second portion corresponding to the plurality of connecting plates, wherein a length of the second portion along the rotational direction of the cross-flow fan is greater than a length of the cross- As shown in FIG.

The length of the fan corresponding portion along the rotational direction of the cross-flow fan may become longer from the first portion to the second portion along the axial direction of the cross-flow fan.

The fan counterpart may have a predetermined gap in the radial direction of the cross-flow fan from the cross-flow fan.

The fan corresponding portion may have a plurality of curved shapes in the axial direction of the cross-flow fan.

And a second imaginary line connecting the center of the cross-flow fan and the second imaginary line connecting the center of the cross-flow fan and the first portion, and an angle in the direction of rotation of the cross- Can be up to 15 degrees.

The flow separation unit may include a plurality of ribs arranged along the axial direction of the cross flow fan.

The plurality of ribs may be arranged at different intervals along the axial direction of the cross-flow fan.

The plurality of ribs may have different thicknesses along the axial direction of the cross-flow fan.

The plurality of ribs may be arranged to be inclined along the axial direction of the cross-flow fan.

According to another aspect of the present invention, an air conditioner includes a main body having an inlet and a discharge port, a heat exchanger provided inside the main body, and air heat-exchanged by the heat exchanger to the discharge port, A plurality of connecting plates for connecting the unit fans in the axial direction of the cross flow fan, and a first guide portion for guiding the air flow flowing into the suction region of the air inside the main body by the cross flow fan, And a flow separating portion disposed between the first guide portion and the second guide portion and connecting the first guide portion and the second guide portion to each other, Wherein the flow separating portion is connected to the first guide portion and extends from a first portion corresponding to the center of the plurality of unit fans, And the fan corresponding portion extends from one end of the plurality of blades of the cross-flow fan toward the second portion corresponding to the cross-flow fan, It can have a certain distance in the radial direction of the fan.

The flow separation unit may include a plurality of ribs arranged at intervals along the axial direction of the cross flow fan.

According to another aspect of the present invention, there is provided an air conditioner comprising: a main body having a suction port and a discharge port; a transverse fan discharging the air sucked through the suction port through the discharge port; And a stator vibrator including a plurality of ribs and having a flow dividing portion whose position changes in a rotating direction of the cross-flow fan along an axial direction of the cross-flow fan.

The flow dividing portion may be spaced apart from the cross-flow fan by a predetermined distance in the radial direction of the cross-flow fan from the center of the cross-flow fan.

The flow dividing portion may have a plurality of curved shapes in the axial direction of the cross flow fan.

The air conditioner according to the present invention improves the structure of the cross section of the stator vane, thereby suppressing the flow fluctuation of the air discharged by the cross flow fan to the utmost.

The air conditioner according to the present invention improves the arrangement structure of the stator vane to reduce the flow loss of the air discharged by the cross flow fan to secure the flow rate.

The air conditioner according to the present invention improves the shape of the stabilizer and reduces the interference generated between the plurality of unit fans of the air cross-flow fan discharged by the cross flow fan, thereby reducing the blow noise.

1 is a perspective view of an air conditioner according to an embodiment of the present invention;
2 is a side view of an air conditioner according to an embodiment of the present invention;
3 is a perspective view of a cross flow fan in an air conditioner according to an embodiment of the present invention.
4 is a side view of a cross-flow fan in an air conditioner according to an embodiment of the present invention.
5 is a view showing flow characteristics of air discharged by a cross flow fan in an air conditioner according to an embodiment of the present invention.
FIG. 6 is a perspective view of a stevetore in an air conditioner according to an embodiment of the present invention; FIG.
FIG. 7 is a vertical cross-sectional view of a cross-flow fan and a stabilizer in an air conditioner according to an embodiment of the present invention.
FIG. 8 is a cross-sectional view of a cross flow fan and a stator in an air conditioner according to an embodiment of the present invention. FIG.
9A and 9B are views of a stabilizer including a plurality of ribs in an air conditioner according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an air conditioner according to an embodiment of the present invention. 2 is a side view of an air conditioner according to an embodiment of the present invention.

As shown in FIG. 1, the air conditioner 1 may include a main body 10 having a suction port 11 at an upper portion thereof and a discharge port 12 at a lower portion thereof and having a predetermined space therein.

The main body 10 may have a substantially rectangular parallelepiped shape. A display unit (not shown) may be provided on one side of the main body 10 to indicate the operating state of the air conditioner 1 and allow the user to control the operation of the air conditioner 1. [

The suction port 11 may be provided at an upper portion of the main body 10 to correspond to a corresponding area of the main body 10. The suction port 11 may be provided not only on the top of the main body 10 but also on the front surface of the main body 10 corresponding to the corresponding partial area.

The suction port 11 may have a shape of a grill and may be provided so as to correspond to the total area of the upper portion of the main body 10. [ The suction port 11 corresponds to the lateral length of the main body 10 and may include a plurality of suction vanes arranged in the longitudinal direction of the main body 10. [ The inlet port 11 may be provided to suck up the maximum amount of air to the heat exchanger 20. [

The discharge port 12 may have a substantially rectangular shape at the lower end of the main body 10. The discharge port 12 may be formed by the stabilizer 50 and the rear guide 40. At the lower end of the discharge port 12, a discharging guide (not shown) capable of adjusting the direction of the air discharged into the room may be formed.

2, the interior of the main body 1 includes a heat exchanger 20 for exchanging the air through cooling or heating, and a heat exchanger 20 located in the center of the interior of the main body 10 to generate a vortex, (30).

The inside of the main body 10 is connected to a suction region A and a discharge region A through an inner region of the main body 10 together with a rear guide 40 and a rear guide 40 which restore a vortex formed by the cross- And a stabilizer 50 (50) that divides into regions (B).

The flow path formed by the rear guide 40 and the stabilizer 50 can communicate with the discharge port 12. [ The stabilizer (50) may be provided inside the discharge port (12).

The heat exchanger 20 can cool or heat the air by causing the air to contact and heat exchange with its surface. The heat exchanger 20 may be installed at an angle to the lower portion of the inlet 11.

The heat exchanger 20 can function as an evaporator during cooling operation and as a condenser during heating operation.

A plurality of heat exchangers 20 may be provided. The heat exchanger 20 may be composed of two or three. The plurality of heat exchangers 20 can be bent and mutually positioned for maximum heat exchange efficiency in the limited internal area of the main body 10. [

The heat exchanger 20 may include a heat exchange pin (not shown) for contacting a tube (not shown) through which the refrigerant flows and a tube (not shown) to enlarge the heat dissipation area. The air sucked by the cross-flow fan 30 from inside the room can be heat-exchanged by coming into contact with a tube (not shown) and a heat exchange pin (not shown) of the heat exchanger 20.

The heat exchanger 20 may include a filter unit (not shown). The filter unit (not shown) can remove dust, bacteria, and the like of the contaminated air sucked through the suction port 11 by the cross flow fan 30. The filter unit (not shown) has recently been used not only as a single filter but also as a combination of various filters according to the purpose.

The fan of the air conditioner 1 can be divided into a low-pressure fan and a high-pressure fan according to the discharge pressure of the air, and the centrifugal air conditioner, the axial flow type air conditioner, A crossflow type air conditioner, and the like

The crossflow fan 30 does not have a suction flow of air in the axial direction Y of the cross flow fan 30 but has a function of sucking air in a plane perpendicular to the axial direction Y of the cross flow fan 30 All of the discharging may occur.

 The cross flow fan 30 is generally advantageous in producing a constant air pressure and a large amount of air, and a regular flow can be generated in the axial direction Y of the cross flow fan 30. Accordingly, the cross-flow fan 30 can be widely used in the air conditioner 1, particularly in a wall-mounted type air conditioner such as a window type air conditioner or a ceiling type air conditioner.

The cross flow fan 30 positioned below the heat exchanger 20 forms a vortex when sucking air and it may not be suitable to discharge the air having formed the sucked vortex directly into the room.

Therefore, a rear guide 40 for reducing the pressure of the air by the vortex to a constant pressure can be provided on the back surface of the air conditioner 1. [

The rear guide 40 may be formed to have a curved surface over the inner rear surface of the main body 10 so that the cross-flow fan 30 can perform both the function of sucking air by the one fan and the function of discharging the air. The rear guide 40 may have a curved shape protruding in the middle, and a curved shape may form an inflection point (not shown).

The rear guide 40 can divide the inside area of the main body 10 into the suction area A and the discharging area B together with the stabilizer 50 so that the inflection point (not shown) of the rear guide 40 May be the suction region A and the lower end portion may be the discharge region B. [

A drain tray may be disposed below the heat exchanger 20. The drain tray can collect and discharge the condensed water flowing from the heat exchanger (20) during the heat exchange of the air sucked by the cross flow fan (30). The drain tray can function to guide the air discharged by the cross flow fan (30) to the discharge port (12).

The drain tray may extend from the inner surface of the main body 10 toward the cross flow fan 30. The upper portion of the drain tray may include a receiving space for receiving condensed water. The drainage tray may be integrally formed with the main body 10 through injection molding, and may be formed independently of the main body 10.

The stabilizer 50 may be located at the end of the drain tray. The stabilizer 50 can divide the inside region of the main body 10 into the suction area A and the discharge area B of the air sucked and discharged by the cross flow fan 30 together with the rear guide 40 .

The stabilizer 50 may be positioned adjacent to the circumferential surface of the transverse fan 30. [ The stabilizer (50) may be formed along the long side of the discharge port (12).

3 is a perspective view of a cross-flow fan in an air conditioner according to an embodiment of the present invention. 4 is a side view of a cross-flow fan in an air conditioner according to an embodiment of the present invention. 5 is a view showing the flow characteristics of air discharged by the cross flow fan in the air conditioner according to the embodiment of the present invention.

As shown in FIG. 3, a cross-flow fan 30 may be provided in the lower portion of the heat exchanger 20 to serve to suck and discharge air. The cross-flow fan (30) can be widely used in the indoor unit of the air conditioner (1) because the cross-flow fan (30) has low noise and high airflow and can provide a direction in which air is sucked and a direction in which the air is sucked.

The cross-flow fan 30 may include a plurality of blades 310 arranged in the radial direction R. [ A driving motor (not shown) capable of rotating the cross-flow fan 30 at a high speed may be coupled to one end of the cross-flow fan 30. [

The cross-flow fan 30 may be integrally formed. The cross-flow fan 30 includes a plurality of unit fans 31 connected along the axial direction Y of the cross-flow fan 30 and a plurality of unit fans 31 arranged between the plurality of unit fans 31, And may include a plurality of connecting plates 32.

Insertion protrusions (not shown) may be formed at both ends of the plurality of blades 310 so that the plurality of blades 310 can be coupled to the plurality of connection plates 32, (Not shown) into which insertion protrusions (not shown) of the plurality of blades 310 can be inserted can be formed.

The plurality of unit fans 31 are connected by a plurality of connecting plates 32 so that the plurality of blades 310 of the plurality of unit fans 31 are arranged in a line along the axial direction Y of the cross- Can be connected. The plurality of blades 310 of the transverse fan 30 arranged in a line can cause blow noise due to intensive discharge of air when the air is discharged by the cross flow fan 30. [

The plurality of unit fans 31 may be connected in series through the plurality of connecting plates 32 at positions rotated by a predetermined angle along the rotational direction W of the cross flow fan 30 to reduce the noise of the blowing air.

The plurality of blades 310 of the cross flow fan 30 connected to the plurality of unit fans 31 at a position rotated by a predetermined angle can disperse the intensive air volume of the air discharged by the cross flow fan 30, Can be reduced.

4, the plurality of unit fans 31 of the cross flow fan 30 may include a plurality of blades 310 curved in the rotational direction W of the cross flow fan 30, respectively. The plurality of blades 310 may be arranged at intervals on the circumference of the cross-flow fan 30 in the rotational direction W of the cross-flow fan 30.

The plurality of blades 310 may be equally spaced or equally spaced on the same circumference. When the plurality of blades 310 are arranged at regular intervals from one another at regular intervals, the cross-flow fan 30 generates a specific frequency noise NZ expressed by a product of the number N of blades and the number of rotations Z Noise) may be caused to a large extent.

Thus, in order to reduce blow noise such as specific frequency noise, the plurality of blades 310 can be arranged at unequal intervals.

Due to the uneven spacing of the plurality of blades 310, the plurality of blades 310 are spaced apart from each other by a first gap G1 and a plurality of A second gap G2 having a relatively large gap between the blades 310 may be formed.

The discharge flow rate of the air can be relatively slow in the first gap G1 and the discharge flow velocity of the air can be formed relatively quickly in the second gap G2. As a result, the position at which the maximum flow velocity is generated varies for each of the plurality of unit fans 31 of the cross-flow fan 30, and the flow fluctuation of the air discharged by the cross flow fan 30 can be increased.

5, the cross-flow fan 30 has a configuration in which a plurality of unit fans 31 are connected in series, so that air discharged from each of the plurality of unit fans 31 is supplied to a plurality of unit fans 31), the flow characteristics of the air discharged by the cross flow fan 30 can be changed.

The flow velocity of the air discharged by the cross flow fan 30 is the fastest at the center of the plurality of unit fans 31 and can have the slowest distribution in the plurality of connection plates 32. [ The flow rate of the air discharged by the cross flow fan 30 can be increased from the plurality of connecting plates 32 toward the center of the plurality of unit fans 31 along the axial direction Y of the cross flow fan 30.

The overall flow characteristics of the cross flow fan 30, to which the unit fans 31 are connected, are determined such that the curved shape of the cross flow fan 30 is parallel to the axis of the cross flow fan 30, (Y) along the Y direction.

Therefore, the air discharged around the plurality of connection plates 32 having a relatively low flow rate can be subjected to the flow interference by the air discharged around the plurality of unit fans 31 having a relatively high flow velocity.

By the flow interference caused by the speed difference of the air discharged by the cross flow fan 30 between the plurality of unit fans 31 and the plurality of connecting plates 32 of the cross flow fan 30, The flow of air can be significantly unstable. The unstable air flow may cause blow noise and may ultimately lower the performance of the cross flow fan 30. [

The speeds of the air discharged from the plurality of unit fans 31 may be different from each other depending on the positions of the plurality of unit fans 31 arranged in the cross flow fan 30. [

A plurality of unit fans (31) arranged at both ends of the cross-flow fan (30) are arranged at both ends of the cross-flow fan (30) 31). ≪ / RTI >

FIG. 6 is a perspective view of a stevetoreer in an air conditioner according to an embodiment of the present invention. FIG. FIG. 7 is a vertical cross-sectional view of a cross flow fan and a stator in an air conditioner according to an embodiment of the present invention. FIG. FIG. 8 is a cross-sectional view of a cross flow fan and a stator in an air conditioner according to an embodiment of the present invention. FIG.

As shown in Fig. 6, the stabilizer 50 may have a thin and hollow shape. The stabilizer 50 may be made of a lightweight material, such as plastic, resilient.

The stabilizer 50 includes a flow dividing portion 52 capable of dividing an internal region of the main body 10 into a suction region A and a discharge region B of air sucked or discharged by the cross flow fan 30 .

The flow separating section 52 may have a plurality of curved shapes in the axial direction Y of the cross flow fan 30. [ The position of the flow separating section 52 can be changed along the axial direction Y of the cross flow fan 30 in the rotational direction W of the cross flow fan. Therefore, the flow separation portion 52 can have a three-dimensional curved surface shape.

As shown in FIG. 7, the flow separation unit 52 may include a fan counterpart 520 that is spaced apart from the cross flow fan 30. The fan counterpart 520 may include a first portion 521 corresponding to the center of the plurality of unit fans 31 and a second portion 522 corresponding to the plurality of connecting plates 32. [

The first portion 521 and the second portion 522 of the flow dividing portion 52 are arranged in a position in consideration of the flow characteristics of the air discharged by the plurality of unit fans 31 and the plurality of connecting plates 32 Can be arranged differently. The flow rate of the air discharged by the cross flow fan 30 can be increased or decreased by adjusting the distance between the flow separation section 52 and the cross flow fan 30. [

By increasing the corresponding intervals between the first portion 521 and the cross-flow fan 30 corresponding to the centers of the plurality of unit fans 30, the speed of the air discharged by the cross-flow fan 30 is relatively fast, A space in which the flow of the air discharged by the fan 30 can flow can be secured and the speed of the discharged air can be lowered.

On the contrary, by making the corresponding intervals between the second portion 522 and the transverse fan 30 corresponding to the plurality of connection plates 32 relatively slow in speed of the air discharged by the transverse fan 30, The flow loss of the air discharged by the cross flow fan 30 can be suppressed and the speed of the air can be increased.

The length of the second portion 522 along the rotational direction W of the cross flow fan 30 may be longer than the length of the first portion 521 along the rotational direction W of the cross flow fan 30. [ The length of the fan-accommodating portion 520 along the rotational direction W of the cross-flow fan 30 increases from the first portion 521 to the second portion 522 along the axial direction Y of the transverse fan 30 It can be long.

As shown in Fig. 8, the shape of the stabilizer 50 may have a substantially triangular cross-section. However, the cross section is not formed in a precise triangular shape, but may be formed with a smooth curve in order to stabilize vortex of the air by the cross-flow fan 30 and reduce noise.

The flow separating section 52 forming the curved surface can reduce the BPF noise and the turbulent flow noise of the vortex eccentrically formed by the cross flow fan 30 and reduce the cross flow fan noise of the cross flow fan 30 ) And can disturb the turbulent flow.

The stabilizer 50 may include a guide portion 51 for guiding a flow of air that flows inside the main body 10 by the cross flow fan 30. The guide section 51 is provided with a first guide section 511 for guiding the airflow flowing inside the main body 10 to the suction area A by the cross flow fan 30 and the cross flow fan 30, And a second guide part 512 for guiding the airflow flowing in the discharge area B to the discharge area B.

The flow separating portion 52 is connected to the guide portion 51 and the air discharged to the discharge region B by the cross flow fan 30 is not re-introduced to the suction region A again, And may be disposed adjacent to the cross flow fan 30 so as to be discharged into the room.

The flow separating portion 52 may include a fan corresponding portion 520 connected to the first guide portion 511 and extending in the axial direction Y of the cross flow fan 30. The fan counterpart 520 may have different positions in the axial direction Y of the cross-flow fan 30. The fan counterparts 520 may be arranged to have different lengths in the rotational direction W of the cross-flow fan 30. [ The fan counterpart 520 may have a plurality of curved shapes in the axial direction Y of the cross-flow fan 30.

)의 변화에 대응하여 변할 수 있다.The length of the fan counterpart 520 is equal to the length of the first imaginary line L1 connecting the center O of the cross-flow fan 30 and the first portion 521 on the same plane and the center O of the cross- Of the cross-flow fan 30 between the second imaginary line L2 connecting the first portion 522 and the second portion 522 with respect to the rotational direction W of the cross-

) In response to the change of the signal.

는 0도에서 최대 15도를 가질 수 있다. 동일 평면상에서 제1가상의 선(L1)과 제2가상의 선(L2) 사이의 횡류팬(30)의 회전 방향(W)에 따른 각도(

는 바람직하게는 최대 약 10도를 가질 수 있다.An angle (?) Along the rotation direction W of the cross-flow fan 30 between the first imaginary line L1 and the second imaginary line L2 on the same plane

Lt; RTI ID = 0.0 > 15 degrees. ≪ / RTI > An angle (?) Along the rotation direction W of the cross-flow fan 30 between the first imaginary line L1 and the second imaginary line L2 on the same plane

May preferably have a maximum of about 10 degrees.

It is necessary to arrange the stabilizer 50 in consideration of the spacing with the cross-flow fan 30. The influence of the distance between the stabilizer 50 and the cross flow fan 30 can be determined by the positional relationship between the cross flow fan 30 and the flow separation portion 52. [

If the interval between the flow dividing section 52 and the cross flow fan 30 is small, the blowing effect is improved but the blow noise is apt to occur. If the interval between the flow separation section 52 and the cross flow fan 30 is wide, However, the blowing effect may be reduced. The interval between the flow dividing section 52 and the cross flow fan 30 can be appropriately adjusted in consideration of the size and operating speed of the cross flow fan 30 and the like.

When the flow dividing section 52 has a curved shape along the axial direction Y of the cross flow fan 30 in order to consider the flow characteristics of the air discharged by the cross flow fan 30, And the interval of the portion corresponding to the plurality of connecting plates 32 and the cross-flow fan 30 may be greatly different from each other.

When the space between the portion corresponding to the plurality of unit fans 31 and the portion corresponding to the plurality of connecting plates 32 and the space between the transverse fan 30 are greatly different from each other, the flow of air discharged by the transverse fan 30 The flow rate of the air discharged by the cross flow fan 30 may be influenced by the position.

In order to minimize the influence on the flow rate of the air to be discharged while considering the flow characteristics of the air discharged by the cross flow fan 30, the fan counterpart 520 causes the cross flow fan 30 to move along the axial direction Y The length can be changed in the rotational direction W of the cross-flow fan 30. [

That is, the fan counterpart 520 and the cross-flow fan 30 may have a first space H spaced at regular intervals in the radial direction R of the cross-flow fan 30. The fan counterpart 520 may have a first space H spaced from the one end of the plurality of blades 310 of the cross-flow fan 30 in the radial direction R of the cross- The fan counterpart 520 is separated from the cross flow fan 30 by a first space H having a constant distance from the center O of the cross flow fan 30 in the radial direction R of the cross flow fan 30 .

9A and 9B are views of a stevia comprising a plurality of ribs in an air conditioner according to another embodiment of the present invention.

9A and 9B, the flow separation portion 52 may include a plurality of ribs 500 arranged along the axial direction Y of the cross flow fan 30. As shown in FIG. A part of the vortex generated by the cross flow fan 30 flows along the smooth curve portion of the plurality of ribs 500 of the stabilizer 50 and the remaining portion flows at the interval between the plurality of ribs 500, Can be much stabilized and noise can be reduced.

The plurality of ribs 500 may not be formed in the flow separation part 52 corresponding to the center of the plurality of unit fans 31. [ The plurality of ribs 500 may be arranged at regular intervals along the axial direction Y of the cross flow fan 30. [ The plurality of ribs 500 may be arranged at different intervals along the axial direction Y of the cross flow fan 30. [

The plurality of ribs 500 may be arranged with the same thickness along the axial direction Y of the transverse fan 30. The plurality of ribs 500 may be arranged with different thicknesses along the axial direction Y of the cross flow fan 30. [

That is, the size and thickness of the plurality of ribs 500, the spacing between the plurality of ribs 500, and the like can be variously formed in consideration of the shape of each air conditioner 1 and the characteristics of the cross- have.

The plurality of ribs 500 may be arranged at right angles along the axial direction Y of the transverse fan 30. The plurality of ribs 500 may be arranged to be inclined with respect to the axial direction Y of the cross flow fan 30.

The plurality of ribs 500 are arranged at right angles to the axial direction Y of the cross flow fan 30 when the plurality of ribs 500 are inclined with respect to the axial direction Y of the cross flow fan 30, The noise generated when the vortex formed by the cross-flow fan 30 hits against the plurality of ribs 500 arranged at right angles to the axial direction Y of the cross-flow fan 30 can be further reduced.

That is, the air discharged by the cross-flow fan 30 is tilted and passes through the gently curved shape of the plurality of ribs 500 arranged at a constant angle and the gap between the plurality of ribs 500, Is guided to the discharge port 12, so that the BPF noise is reduced and the turbulent flow noise is reduced, so that the overall noise can be reduced.

Hereinafter, the operation and effect of the air conditioner 1 according to the embodiment of the present invention will be described.

The air conditioner 1 according to the present invention starts to be driven by a driving motor (not shown) when the power is applied and the air is blown by the cross flow fan 30 through the suction port 11 And can be sucked into the interior of the main body 10.

The air introduced into the main body 10 by the cross flow fan 30 passes through a filter (not shown) provided on the front face of the heat exchanger 20, and dust, bacteria, and the like are filtered and then the heat exchanger 20 And can be heat exchanged while passing through.

The air that has been heat-exchanged by the heat exchanger 20 passes through the cross-flow fan 30 to generate vortex. The vortex is stabilized by the rear guide 40 formed on the rear surface of the air conditioner 1, .

The air discharged by the cross flow fan 30 can be discharged to the room through the discharge guide 12 formed by the stabilizer 50 and the rear guide 40 through the rear guide 40. [

By improving the structure, arrangement, and shape of the stabilizer 50, it is possible to reduce the noise due to the flow loss and the flow fluctuation in the process of converting the swirling flow of the dynamic pressure generated by the cross flow fan 30 into the static pressure, The noise level can be reduced up to about 1.5 dBA as a standard.

Although the technical idea of the present invention has been described above with reference to specific embodiments, the scope of the present invention is not limited to these embodiments. It is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. .

: 제1각도1: air conditioner 10: main body
11: inlet 12: outlet
20: heat exchanger 30: cross flow fan
31: plural unit fans 32: plural connection plates
310: Blade 40: Rear guide
50: Stabilizer 51: Guide part
511: first guide part 512: second guide part
52: flow separation part 521: first part
522: second part 500: plural ribs
A: Suction area B: Discharge area
G1: first spacing G2: second spacing
Y: Axial direction of cross-flow fan W: Direction of rotation of cross-flow fan
R: Radial direction of the cross flow fan O: Center of the cross flow fan
L1: first virtual line L2: second virtual line
H: First space

: First angle

Claims (17)

A main body having a suction port and a discharge port;
A heat exchanger provided inside the main body;
A cross flow fan for discharging air heat-exchanged by the heat exchanger to the discharge port; And
A first guide portion positioned adjacent to the cross-flow fan and configured to guide airflow flowing through the interior of the main body to the suction region by the cross-flow fan, and a second guide portion guiding to the discharge region; And a stator having a flow dividing portion connected to the cross flow fan and having a position varying in a rotating direction of the cross flow fan along an axial direction of the cross flow fan. The method according to claim 1,
Wherein the flow dividing section has a plurality of curved shapes in the axial direction of the cross flow fan. The method according to claim 1,
Wherein the flow separating portion includes a fan corresponding portion connected to the first guide portion and extending in the axial direction of the cross flow fan,
Wherein the fan counterparts are disposed at different positions in the axial direction of the cross-flow fan and in different lengths in the rotational direction of the cross-flow fan. The method of claim 3,
Wherein the cross-flow fan includes a plurality of unit fans connected along the axial direction of the cross-flow fan, and a plurality of connection plates disposed between the plurality of unit fans and connecting the plurality of unit fans,
Wherein the fan corresponding portion includes a first portion corresponding to the center of the plurality of unit fans and a second portion corresponding to the plurality of connecting plates,
Wherein the length of the second portion along the rotational direction of the cross-flow fan is longer than the length of the first portion along the rotational direction of the cross-flow fan. 5. The method of claim 4,
And the length of the fan-accommodating portion along the rotational direction of the cross-flow fan becomes longer from the first portion to the second portion along the axial direction of the cross-flow fan. The method of claim 3,
Wherein the fan counterpart has a predetermined distance from the cross-flow fan in the radial direction of the cross-flow fan. The method of claim 3,
Wherein the fan corresponding portion has a plurality of curved shapes in the axial direction of the cross flow fan. 5. The method of claim 4,
And a second imaginary line connecting the center of the cross-flow fan and the second imaginary line connecting the center of the cross-flow fan and the first portion, and an angle in the direction of rotation of the cross- Is an air conditioner with a maximum of 15 degrees. The method according to claim 1,
Wherein the flow separating portion includes a plurality of ribs arranged along the axial direction of the cross flow fan. 10. The method of claim 9,
Wherein the plurality of ribs are arranged at different intervals along the axial direction of the cross-flow fan. 10. The method of claim 9,
Wherein the plurality of ribs have different thicknesses along the axial direction of the cross-flow fan. 10. The method of claim 9,
And the plurality of ribs are arranged to be inclined along the axial direction of the cross-flow fan. A main body having a suction port and a discharge port;
A heat exchanger provided inside the main body;
A cross flow fan including a plurality of unit fans and a plurality of connection plates for connecting the plurality of unit fans in the axial direction of the cross flow fan; And
A first guide portion for guiding a flow of air to the suction region of the inside of the main body by the cross flow fan, a second guide portion for guiding a flow of air to the discharge region, And a flow separating portion disposed between the first guide portion and the second guide portion and connecting the first guide portion and the second guide portion,
Wherein the flow separating portion is connected to the first guide portion and extends from a first portion corresponding to the center of the plurality of unit fans to a second portion corresponding to the plurality of connecting plates, And a fan corresponding portion having a longer length in the rotation direction of the fan,
Wherein the fan counterpart has a predetermined distance from one end of the plurality of blades of the cross-flow fan in the radial direction of the cross-flow fan. 14. The method of claim 13,
Wherein the flow separating portion includes a plurality of ribs arranged at intervals along an axial direction of the cross flow fan. A main body having a suction port and a discharge port;
A cross flow fan for discharging the air sucked through the suction port through the discharge port; And
And a stator having a plurality of ribs arranged with an interval along the axial direction of the cross-flow fan, the sta- bilizer having a flow dividing portion whose position is changed in the rotational direction of the cross-flow fan along the axial direction of the cross-flow fan Air conditioner. 16. The method of claim 15,
Wherein the flow separating portion is spaced apart from the cross-flow fan at a predetermined distance in the radial direction of the cross-flow fan from the center of the cross-flow fan. 16. The method of claim 15,
Wherein the flow dividing section has a plurality of curved shapes in the axial direction of the cross flow fan.

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