Air outlet grille, outdoor unit and air conditioner

Abstract

The invention provides an air outlet grille, an outdoor unit and an air conditioner, the air outlet grille comprises a central disc located in the center, an outer frame located on the outermost edge and a rib set located between the central disc and the outer frame, the rib set comprises circumferential ribs and radial ribs, and the radial ribs are distributed in a radiation mode with the central disc as the center; the curve along which the air guide surfaces of the radial ribs are arranged according to a position angle, an inlet angle and an outlet angle, the angle range of the position angle is 50-52 degrees, the angle range of the inlet angle is 5-10 degrees, and the angle range of the outlet angle is 10-20 degrees. The outdoor unit comprises an air outlet grille, and the air conditioner comprises the outdoor unit and an indoor unit. The radial ribs still meet the trend that the bending degree is increased along with the increase of the radius in the radial direction; and furthermore, the curve of the radial rib is ensured to have an angle which is adaptive to the rotation direction of the axial flow fan blade and the air outlet angle of the axial flow fan blade with a larger forward bend, so that the air outlet blocking is reduced, the air direction is adjusted, the local turbulence is reduced, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air outlet grille, an air conditioning outdoor unit and an air conditioner. Background Art

[0002] The air conditioner includes an outdoor unit, and an air outlet of the outdoor unit is provided with an air outlet grille. An existing air outlet grille includes a central disk located in the center, an outer frame located at the outermost edge, and a rib group located between the central disk and the outer frame. The rib group includes circumferential ribs and radial ribs. A plurality of annular circumferential ribs are arranged from the inside to the outside and concentrically with the central disk between the central disk and the outer frame, and a plurality of radial ribs extending along a curve are radially distributed between the central disk and the outer frame.

[0003] The existing air outlet grille is designed to reduce the wind resistance of the radial ribs by designing the inclination angles of the radial ribs according to the distribution law of the velocity vector synthesized by the axial velocity and the circumferential velocity of the airflow delivered by the fan when the air outlet grille is not installed.

[0004] A new problem affecting the wind resistance of radial ribs has been discovered: outdoor units often use axial flow blades with large forward bends, and the axial flow blades rotate counterclockwise. Therefore, when the axial flow blades rotate, their wake will form an obvious counterclockwise vortex. The existing curved design of the radial ribs of the air outlet grille has not solved this problem, resulting in the grille still having a large wind resistance. Summary of the invention

[0005] The first object of the present invention is to provide an air outlet grille which optimizes the radial rib design to reduce the air outlet resistance in view of the situation of axial flow fan blades with a large forward bend.

[0006] A second object of the present invention is to provide an outdoor unit that reduces air outlet resistance, increases air outlet volume, and reduces air outlet noise.

[0007] The third object of the present invention is to provide an air conditioner which reduces air outlet resistance, increases air outlet volume and reduces air outlet noise.

[0008] The air outlet grille provided by the first purpose of the present invention includes a central plate located in the center, an outer frame located at the outermost edge, and a rib group located between the central plate and the outer frame, the rib group includes circumferential ribs and radial ribs, and multiple radial ribs are radiated with the central plate as the center; the curve along the air guide surface of the radial ribs is set according to the position angle, inlet angle and outlet angle, the position angle range is 50 degrees to 52 degrees, the inlet angle range is 5 degrees to 10 degrees, and the outlet angle range is 10 degrees to 20 degrees.

[0009] It can be seen from the above scheme that under this setting, the radial ribs still meet the trend of increasing bending degree along the radial direction as the radius increases, and further ensure that the curve of the radial ribs has an angle that takes into account the rotation direction of the axial flow fan blades and the wind outlet angle of the axial flow fan blades with larger forward bends so as to reduce wind outlet obstruction, adjust wind direction, reduce local turbulence and improve heat dissipation efficiency.

[0010] A further solution is that the position angle increases from the air inlet side to the air outlet side of the air outlet grille.

[0011] A further solution is that the wind guide surface includes a first line located on the wind inlet side, and the position angle of the first line along the curve is 50 degrees to 51 degrees; the wind guide surface includes a third line located on the wind outlet side, and the position angle of the third line along the curve is 51 degrees to 52 degrees; the wind guide surface also includes a second line located between the first line and the third line, and the position angle of the second line along the curve is 50.5 degrees to 51.5 degrees.

[0012] As can be seen from the above, this setting makes the air guide surface of the radial ribs form an inclination angle that is adapted to the rotation direction of the axial flow fan blade and the air outlet angle of the gas behind the fan blade, and the inclination angle increases with the increase of the radius in the radius direction of the grille. The air guide surface is curved, and the end of the air guide surface is connected to the outer frame. The position of the end of the air guide surface is different on the air inlet side and the air outlet side, so that the position angle increases from the air inlet side to the air outlet side of the air outlet grille, but the overall position angle is still guaranteed to be between 50 degrees and 52 degrees, which meets the angle requirements for solving the situation of axial flow fan blades with larger forward bends.

[0013] A further solution is that, from the air inlet side to the air outlet side, the width of the radial ribs first increases and then decreases, and the width of the radial ribs on the air inlet side is the smallest.

[0014] A further solution is that on the radial ribs, the width at the first line is the first width, the width at the second line is the second width, and the width at the third line is the third width. The first width is 1 mm to 1.2 mm, the second width is 2.1 mm to 2.3 mm, and the third width is 1.1 mm to 1.3 mm.

[0015] It can be seen from the above that from the air inlet side to the air outlet side, the width in the middle is larger in order to meet the structural strength requirements of the ribs, and the widths at the front and rear ends are smaller, especially the width on the air inlet side is the smallest in order to ensure that the air outlet area is large enough when the airflow passes through the grille ribs, thereby reducing the loss of air volume from the grille to the external unit.

[0016] In another further solution, the circumferential ribs include annular ribs, and the annular ribs are arranged at 0.12 times to 0.15 times the radius of the air outlet grille; and at least a portion of the radial ribs are entirely located at the outer periphery of the annular ribs.

[0017] As can be seen from the above, in order to reduce consumables and increase the air outlet area of ​​the grille, the number of radial grilles should be minimized while meeting the requirement of being less than the safety gap. To this end, the present invention uses the annular ribs as the boundary, and a portion of the radial ribs are integrally arranged on the outer circumference of the annular ribs, so that the number of ribs on the inner circumference of the annular ribs is smaller.

[0018] In another further solution, the circumferential ribs include at least one group of spiral ribs, the spiral rib group includes three spiral ribs; the spiral rib group satisfies that the length of the radial ribs intercepted between any two spiral ribs is less than or equal to 50 mm.

[0019] It can be seen from the above that, compared with the existing circular circumferential ribs, the spiral rib group can effectively convert the impact energy into heat energy or elastic potential energy through its unique geometric shape when subjected to external force, thereby achieving the effect of shock absorption, and when the vibration propagates along the spiral line, due to the existence of its spiral path, the vibration wave will gradually decay during the propagation process, thereby reducing the transmission efficiency of the vibration and reducing the noise level; the special shape of the spiral structure can provide additional resistance when subjected to torsional force, and enhance the ability of the component to resist bending and torsion; in addition, the length of any cut radial rib does not exceed 50mm to ensure that the strength of each radial rib section can meet the requirements. In addition, the spiral ribs of the present invention combined with the overall rib design and arrangement method formed by the radial ribs of the present invention can not only reduce the loss of the grille to the air volume of the external unit, but also reduce the diffusion dissipation of the tail flow to the surroundings, thereby improving the sound quality of the outdoor unit.

[0020] A further solution is that at least three groups of spiral ribs are provided, and the length of the radial ribs intercepted between any two adjacent spiral ribs is less than or equal to 50 mm.

[0021] As can be seen from the above, the arrangement of multiple groups of spiral ribs enables the spiral line to evenly distribute the external force over a longer path, avoiding the problem of local stress concentration and improving the overall stability of the structure; further, it is still ensured that the length of each radial rib meets the design requirements.

[0022] A further solution is that the circumferential ribs include circular ribs, and the circular ribs are arranged at 0.12 to 0.15 times the radius of the air outlet grille; in the spiral rib group, along the clockwise direction of the spiral ribs, the starting point of the first spiral rib, the starting point of the second spiral rib and the starting point of the third spiral rib are arranged in sequence; the starting point of the first spiral rib is connected to the circular rib; the starting point of the second spiral rib is located at the outer periphery of the first spiral rib and is spaced from the first spiral rib; the starting point of the third spiral rib is located at the outer periphery of the first spiral rib and is spaced from the first spiral rib, and the starting point of the third spiral rib is located at the inner periphery of the second spiral rib and is spaced from the second spiral rib; the three spiral ribs all terminate at the outer frame.

[0023] As can be seen from the above, if all spiral ribs extend along a curve, start from the same circumference and / or end at the same circumference, it may further cause the problem of affecting the air volume due to the ribs being too dense. To this end, the present invention optimizes the design of the spiral rib group, and the starting point, curve and length of each spiral rib in the spiral rib group are different, so as to meet the strength design requirement that the length of the intercepted radial rib is less than or equal to 50mm, further reduce the blocking surface to increase the air volume, and can maintain a high performance level under repeated loading conditions, extend the service life, and improve durability.

[0024] The second object of the present invention is to provide an outdoor unit comprising an air outlet grille, and the air outlet grille adopts the above-mentioned air outlet grille.

[0025] The third object of the present invention is to provide an air conditioner comprising an outdoor unit and an indoor unit, wherein the outdoor unit is the outdoor unit described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of an embodiment of an air outlet grille of the present invention.

[0027] Figure 2 This is a design principle diagram of the radial ribs in the air outlet grille embodiment of the present invention.

[0028] Figure 3 It is a partial structural diagram of the radial ribs of the air outlet grille embodiment of the present invention.

[0029] Figure 4 This is a structural diagram of the air outlet grille embodiment of the present invention, in which the spiral ribs are hidden.

[0030] Figure 5 Schematic diagram of the spiral lines of the spiral ribs of the air outlet grille embodiment of the present invention.

[0031] Figure 6 Schematic diagram of a group of spiral ribs in an embodiment of the air outlet grille of the present invention.

[0032] Figure 7 The structural diagram of the air outlet grille embodiment of the present invention hides the remaining spiral rib groups.

[0033] Figure 8 Turbulent kinetic energy cloud image for background technology.

[0034] Fig. 9 This is a turbulent kinetic energy cloud diagram of an embodiment of the air outlet grille of the present invention.

[0035] Fig.10 The figure is the air flow diagram of the background technology.

[0036] Fig.11 The figure is an air outlet streamline diagram of an air outlet grille embodiment of the present invention. DETAILED DESCRIPTION

[0037] See also Figure 1 The air outlet grille includes a central disk 11 located in the center, an outer frame 12 located at the outermost edge, and a rib group located between the central disk and the outer frame. The rib group includes radial ribs 2 and circumferential ribs. The multiple radial ribs 2 are radiated with the central disk 11 as the center. The circumferential ribs include annular ribs 3 and multiple spiral ribs. In this embodiment, the multiple spiral ribs include three groups of spiral rib groups 4 evenly distributed along the circumference of the air outlet grille.

[0038] The present invention optimizes the design of the extension trend of the radial ribs.

[0039] See also Figure 2 A two-dimensional rectangular coordinate system is established with a plane perpendicular to the axis of the air outlet grille, and the origin of the coordinate system is the center of the air outlet grille. A curve L is drawn with the center of the air outlet grille as the starting point and the outer frame 12 as the end point. The angle between the tangent of the starting point of the curve L and the y-axis of the coordinate system is defined as the inlet angle theta_in of the present invention, the angle between the tangent of the end point of the curve L and the x-axis of the coordinate system is defined as the outlet angle theta_out of the present invention, and the angle between the line connecting the end point of the curve L to the center of the air outlet grille and the y-axis of the coordinate system is defined as the position angle theta of the present invention.

[0040] In the present invention, the angle of theta is preferably 50 degrees, the angle range of the inlet angle theta_in is 5 to 10 degrees, and the angle range of the outlet angle is 10 to 20 degrees. Under this setting, the radial ribs 2 still meet the trend of increasing bending degree along the radial direction as the radius increases, and further ensure that the curve of the radial ribs 2 has an angle that is compatible with the rotation direction of the axial flow fan blade and the wind outlet angle of the axial flow fan blade with a larger forward bend to reduce wind outlet obstruction, adjust wind direction, reduce local turbulence and improve heat dissipation efficiency.

[0041] Recombination Figure 3 The present invention further optimizes the contour design of the radial rib 2. The radial rib 2 includes an air guide surface 20, which includes a first line 21 located at the air inlet side 101 of the air outlet grille, a third line 23 located at the air outlet side 102 of the air outlet grille, and a second line 22 located between the first line 21 and the third line 23. The first line 21, the second line 22, and the third line 23 all extend from the starting point of the radial rib 2 to the end point of the radial rib 2.

[0042] like Figure 3As shown, any cross section of the radial rib 2 meets the following conditions: from the air inlet side 101 to the air outlet side 102, the width of the radial rib 2 first increases and then decreases, and the width of the radial rib 2 is the smallest on the air inlet side 101. Furthermore, on the radial rib 2, the width at the location of the first line 12 is the first width w1, the width at the location of the second line 22 is the second width w2, and the width at the location of the third line 23 is the third width w3.

[0043] The first width w1 is 1 mm to 1.2 mm, the second width w2 is 2.1 mm to 2.3 mm, and the third width w3 is 1.1 mm to 1.3 mm. More preferably, the first width w1 is 1.1 mm, the second width w2 is 2.2 mm, and the third width w3 is 1.2 mm.

[0044] Under this setting, from the air inlet side 101 to the air outlet side 102, the width in the middle is larger in order to meet the structural strength requirements of the ribs, and the widths at the front and rear ends are smaller, especially the width of the air inlet side 101 is the smallest in order to ensure that the air outlet area is large enough when the airflow passes through the grille ribs, thereby reducing the loss of air volume from the grille to the external unit.

[0045] Furthermore, the present invention further optimizes the extension trend of the radial ribs 2 based on the improved profile design of the radial ribs 2. Mainly, since the wind guide surface 20 includes the first line 21, the second line 22 and the third line 23 located at different positions, the first line 21 is located at the wind inlet side 101, the second line 22 is far away from the wind inlet side 101 relative to the first line 21, and the third line 23 is located at the wind outlet side 102 farthest away from the wind inlet side 101.

[0046] In order to adapt to the rotation direction of the axial flow fan blade and the outlet angle of the gas behind the fan blade, the air guide surface 20 is preferably slightly inclined to the axial direction of the air outlet grille, which requires the air guide surface 20 to have an inclination angle. Preferably, the inclination angle increases with the increase of the radius in the grille radius direction.

[0047] To this end, the present invention makes different values ​​for the position angle theta of the curve L along the first line 21, the second line 22 and the third line 23, wherein the position angle theta along the curve L of the first line 21 is 50 degrees to 51 degrees, the position angle theta along the curve L of the second line 22 is 50.5 degrees to 51.5 degrees, and the position angle theta along the curve L of the third line 23 is 51 degrees to 52 degrees. Preferably, the position angle theta along the curve L of the first line 21 is 50 degrees, the position angle theta along the curve L of the second line 22 is 50.75 degrees, and the position angle theta along the curve L of the third line 23 is 51.5 degrees. This setting meets the above-mentioned inclination design requirements and meets the requirement that ∆theta is controlled within 2 degrees. Among them, the curve of the radial rib 2 is controlled by a NURBS spline curve, and the purpose of controlling the curve trajectory through specific parameters can be achieved by parameterizing and modeling the curve.

[0048] See also Figure 2 The radius of the air outlet grille is R1, and the radius of the circular rib 3 is R2. In this embodiment, R2=(0.12-0.15)R1, that is, the circular rib 3 is arranged at 0.12 to 0.15 times the radius of the air outlet grille.

[0049] Recombination Figure 4 The starting point of a part of the radial ribs 2 is located at the outer edge of the center disk 11, while the other part of the radial ribs 2 is located at the outer periphery of the annular ribs 3, that is, the starting point of the other part of the radial ribs 2 is located at the outer edge of the annular ribs 3. This setting is mainly considered to reduce consumables and increase the air outlet area of ​​the grille.

[0050] Under this setting, the number of radial ribs is minimized while ensuring that the safety gap is less than 10 mm. In this embodiment, the total number of radial ribs 2 is 80, and only 40 radial ribs extend to the inner circumference of the annular rib 3.

[0051] See also Figure 1 and Figure 5 Each group of spiral ribs 4 includes three spiral ribs, namely, a first spiral rib 41, a second spiral rib 42 and a third spiral rib 43. The spiral ribs of the present invention extend along a spiral line 400, and the spiral line 400 is a logarithmic spiral line. The equation of the logarithmic spiral line is: r=a×e (b×t) x=r×cos(t) y=r×sin(t) Where r is the rib radius, t is the rotation angle, and a and b are coefficients.

[0052] Recombination Figure 6 and Figure 7In this embodiment, when a=20, b=0.2, the first spiral rib 41 is obtained; when the coefficient a=40, b=0.2, the second spiral rib 42 is obtained; when the coefficient a=80, b=0.2, the third spiral rib 43 is obtained. Of course, the rotation angle t of the three spiral ribs also has different values.

[0053] Under this setting, in the spiral rib group 4, the first starting point 411 of the first spiral rib 41, the second starting point 421 of the second spiral rib 42 and the third starting point 431 of the third spiral rib 43 are arranged in sequence along the clockwise direction of the spiral ribs (counterclockwise in the figure) and are located in different directions, and the first starting point 411 of the first spiral rib 41 is connected to the circular ring rib 3; the second starting point 421 of the second spiral rib 42 is located at the outer periphery of the first spiral rib 41 and is spaced from the first spiral rib 41, the third starting point 431 of the third spiral rib 43 is located at the outer periphery of the first spiral rib 41 and is spaced from the first spiral rib 41, the third starting point 431 of the third spiral rib 43 is located at the inner periphery of the second spiral rib 42 and is spaced from the second spiral rib 42, the radius from the second starting point 421 to the center of the air outlet grille is greater than the radius of the circular ring rib 3, and the radius from the third starting point 431 to the center of the air outlet grille is greater than the radius of the second starting point 421. In addition, the first spiral rib 41 , the second spiral rib 42 and the third spiral rib 43 all terminate at the outer frame 12 .

[0054] After laying out multiple spiral ribs according to this special rule, the length of the radial rib 2 intercepted between any two spiral ribs in the spiral rib group 4 is less than or equal to 50 mm, and the length of the radial rib 2 intercepted between the spiral ribs of any two adjacent groups of spiral rib groups 4 is less than or equal to 50 mm. Under this setting, the length of the intercepted section of any radial rib 2 on the air outlet grille is less than or equal to 50 mm to ensure that the strength of each section of the radial rib can meet the requirements.

[0055] Mainly, compared with the existing multi-layer circular circumferential ribs, the spiral rib group 4 can effectively convert the impact energy into heat energy or elastic potential energy through its unique geometric shape when subjected to external force, thereby achieving a shock absorption effect, and when the vibration propagates along the spiral line, due to the existence of its spiral path, the vibration wave will gradually attenuate during the propagation process, thereby reducing the vibration transmission efficiency and reducing the noise level; the special shape of the spiral structure can provide additional resistance when subjected to torsional force, thereby enhancing the ability of the component to resist bending and torsion.

[0056] Table 1 is a comparison table of experimental data of the background technology and the air outlet grille of the present invention. It can be seen that at the same speed, after the outdoor unit is equipped with the air outlet grille of the present invention, the air volume will be increased by about 3% and the noise will be reduced by about 1dB compared with the air outlet grille of the background technology.

[0057]

[0058] Table 1- Comparison of experimental data of background technology and air outlet grille of the present invention See also Figure 8 and Fig. 9 Comparing the turbulent kinetic energy cloud diagrams of the background technology and the air outlet grille of the present invention, it can be seen that the background technology air outlet grille has a relatively obvious turbulent kinetic energy extreme area, while the air outlet grille of the present invention has no obvious turbulent kinetic energy extreme area and is more uniform. It can be seen that the air outlet grille of the present invention has a smaller blocking effect on the airflow and has a certain guiding effect on the airflow.

[0059] See also Fig.10 and Fig.11 Comparing the streamline diagram of the air outlet tail flow of the background technology and the air outlet grille of the present invention, it can be seen that the air outlet grille of the background technology has a larger blocking effect and the tail flow is more divergent and the low-speed area near the middle is relatively chaotic. Compared with the air outlet grille of the background technology, the air outlet grille of the present invention has a certain guiding effect on the tail flow, and can produce a certain convergence effect on the tail flow, thereby reducing the generation of vortices. The present invention increases the air volume of the outdoor unit by 1% to 2% at the same speed. And because the radial ribs 2 guide the air outlet of the outdoor unit, the exhaust air of the outdoor unit can be made more uniform after passing through the grille, reducing the generation of local vortices, thereby reducing the noise of the outdoor unit. At the same speed, the noise of the outdoor unit is reduced by about 0.4dB.

[0060] The present invention also seeks to protect an outdoor unit comprising the air outlet grille of the present invention.

[0061] The present invention also claims protection for an air conditioner, which includes an indoor unit and the outdoor unit of the present invention.

[0062] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air outlet grille, comprising a central disk located in the center, an outer frame located at the outermost edge, and a rib group located between the central disk and the outer frame, wherein the rib group comprises circumferential ribs and radial ribs, and a plurality of radial ribs are radiated from the central disk; Features: The curve along which the air guide surface of the radial ribs is arranged according to the position angle, the inlet angle and the outlet angle. The position angle ranges from 50 to 52 degrees, the inlet angle ranges from 5 to 10 degrees, and the outlet angle ranges from 10 to 20 degrees.

2. The air outlet grille according to claim 1, characterized in that: The position angle increases from the air inlet side to the air outlet side of the air outlet grille.

3. The air outlet grille according to claim 2, characterized in that: The wind guide surface includes a first line located at the wind inlet side, and the position angle of the curve along which the first line is located is 50 degrees to 51 degrees; The wind guide surface includes a third line located at the wind outlet side, and the position angle of the curve along which the third line is located is 51 degrees to 52 degrees; The wind guiding surface further includes a second line located between the first line and the third line, and the position angle of the curve along which the second line is located is 50.5 degrees to 51.5 degrees.

4. The air outlet grille according to claim 3, characterized in that: From the air inlet side to the air outlet side, the width of the radial ribs increases first and then decreases, and the width of the radial ribs is the smallest on the air inlet side.

5. The air outlet grille according to claim 4, characterized in that: On the radial ribs, the width at the first line is the first width, the width at the second line is the second width, and the width at the third line is the third width. The first width is 1 mm to 1.2 mm, the second width is 2.1 mm to 2.3 mm, and the third width is 1.1 mm to 1.3 mm.

6. The air outlet grille according to any one of claims 1 to 5, characterized in that: The circumferential ribs include annular ribs, and the annular ribs are arranged at 0.12 to 0.15 times the radius of the air outlet grille; At least a portion of the radial ribs are entirely located on the outer periphery of the annular ribs.

7. The air outlet grille according to any one of claims 1 to 5, characterized in that: The circumferential ribs include at least one group of spiral ribs, and one group of spiral ribs includes three spiral ribs; The spiral rib group satisfies that the length of the radial ribs intercepted between any two of the spiral ribs is less than or equal to 50 mm.

8. The air outlet grille according to claim 7, characterized in that: At least three groups of spiral ribs are provided, and the length of the radial ribs intercepted between any two adjacent spiral ribs is less than or equal to 50 mm.

9. The air outlet grille according to claim 7, characterized in that: The circumferential ribs include annular ribs, and the annular ribs are arranged at 0.12 to 0.15 times the radius of the air outlet grille; In the spiral rib group: Along the clockwise direction of the spiral ribs, the starting point of the first spiral rib, the starting point of the second spiral rib and the starting point of the third spiral rib are sequentially arranged; The starting point of the first spiral rib is connected to the circular rib; The starting point of the second spiral rib is located at the periphery of the first spiral rib and is spaced apart from the first spiral rib; The starting point of the third spiral rib is located at the outer periphery of the first spiral rib and is spaced from the first spiral rib, and the starting point of the third spiral rib is located at the inner periphery of the second spiral rib and is spaced from the second spiral rib; The three spiral ribs all terminate at the outer frame.

10. An outdoor unit, including an air outlet grille, characterized in that: The air outlet grille adopts the air outlet grille according to any one of claims 1 to 9.

11. An air conditioner, comprising an outdoor unit and an indoor unit, characterized in that: The outdoor unit is the outdoor unit according to claim 10.

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