Air deflector assembly and air conditioner indoor unit

Abstract

The application discloses a deflector assembly and an air conditioner indoor unit. The deflector assembly comprises a first deflector and a second deflector. The first deflector is provided with a deflector hole. The second deflector is arranged on one side of the first deflector. The second deflector is provided with a ventilation hole. The ventilation hole is provided with a rotating flow vane. A certain space is arranged between the first deflector and the second deflector to form a deflector gap. Compared with the scheme that air flow is defused through a single-layer micro-hole deflector, the defusing effect of the application is better, and the windless defusing effect is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioners, in particular to a deflector assembly and an indoor air conditioner. BACKGROUND

[0002] Local discomfort caused by blowing feeling can seriously reduce the comfort of the human body. In hot summer, if the cold wind of the air conditioner is directly blown for a long time for the sake of cooling, it is easy to cause a cold and flu, and even arthralgia such as rheumatism. Long-term direct blowing of hot air in cold weather will also cause discomfort to the body. Therefore, reducing the blowing feeling has always been a focus of indoor air conditioner comfort research. At present, the air conditioner with windless function on the market usually sets a diffuser assembly with micropores at the air outlet to use the micropores on the diffuser assembly to intercept the airflow to reduce the wind speed. However, this diffuser assembly has poor windless diffuser effect and poor comfort effect. SUMMARY

[0003] The main purpose of the present application is to provide a deflector assembly, which aims to solve the problem of poor windless effect of the air conditioner in the prior art.

[0004] To achieve the above-mentioned purpose, the present application provides a deflector assembly, comprising:

[0005] A first diffuser plate is provided with a diffuser hole;

[0006] A second diffuser plate is provided on one side of the first diffuser plate, and the second diffuser plate is provided with a ventilation hole, and a cyclone vane is arranged in the ventilation hole.

[0007] A certain gap is arranged between the first diffuser plate and the second diffuser plate to form a diffuser gap.

[0008] In an embodiment, the cyclone vane comprises a first vane extending from the center of the ventilation hole to the edge of the ventilation hole.

[0009] In an embodiment, the cyclone vane comprises a second vane extending from the edge of the ventilation hole to the center of the ventilation hole.

[0010] The second diffuser plate is provided with a first connecting piece in the ventilation hole, the first vane is connected with the inner wall of the first connecting piece, and the second vane is connected with the outer wall of the first connecting piece.

[0011] In an embodiment, the second diffuser plate comprises a second connecting piece arranged at the center of the ventilation hole, and one end of the first vane away from the first connecting piece is arranged on the second connecting piece.

[0012] In an embodiment, the air dispersing hole is a square hole.

[0013] In an embodiment, the distance between the first air dispersing plate and the second air dispersing plate is a, and the overall thickness of the air deflector assembly is L, wherein a / L>0.25.

[0014] In an embodiment, the diameter of the first connecting piece is D1, and the diameter of the air vent hole is D2, wherein 0.4≤D1 / D2≤0.7.

[0015] In an embodiment, the overall width of the air deflector assembly is H, and the diameter of the air vent hole is D2, wherein 0.7≤D2 / H≤0.9.

[0016] In an embodiment, the angle between the first vane and the second air dispersing plate is α, and the angle between the second vane and the second air dispersing plate is β, wherein the α and β are acute angles, or the α and β are obtuse angles, or one of the α and β is an acute angle and the other is an obtuse angle.

[0017] In an embodiment, 30°<α<60°, and 120°<β<150°.

[0018] In an embodiment, when the α and β are acute angles, the α<β, and when the α and β are obtuse angles, the α>β.

[0019] In an embodiment, the first vane has at least 3 pieces, and the second vane has at least 6 pieces.

[0020] The present application also provides an air conditioner indoor unit comprising the above-mentioned multiple air deflector assemblies and a driving mechanism for driving the air deflector assemblies.

[0021] The present application sets the air deflector assembly of the air conditioner into a double-layer structure, one layer being a first air dispersing plate provided with air dispersing holes, and the other layer being a second air dispersing plate provided with cyclone vanes, and an air dispersing gap is arranged between the two air dispersing plates. When the air conditioner is turned on in the windless mode, the air deflector assembly shields the air outlet of the air conditioner, air is discharged from the air outlet of the air conditioner, guided by the cyclone vanes, diffused into the air dispersing gap, and then discharged from the air dispersing holes. Compared with the scheme of air flow being dispersed by a single-layer micro-porous air deflector, the air dispersing effect of the present application is better, and the windless air dispersing effect is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor.

[0023] Figure 1 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0024] Figure 2 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 1 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0025] Figure 3 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0026] Figure 4 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 1 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0027] Figure 5 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 1 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0028] Figure 6 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 1 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0029] Figure 7 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 1 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0030] Figure 8 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 1 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0031] Figure 9 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 1 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0032] Figure 10 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 9 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0033] Figure 11 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 1 Structure schematic view of the air deflector assembly in an embodiment of the present application;

[0034] Figure 12 Structure schematic view of the air deflector assembly in an embodiment of the present application; Figure 2 Structure schematic view of the air deflector assembly in an embodiment of the present application.

[0035] Explanation of the reference signs:

[0036] Reference Name Reference Name 10 First air diffuser 23 First connecting member 11 Air diffuser hole 24 Second connecting member 12 First notch 25 Vent hole 13 Second hinge shaft 26 Second notch 20 Second air diffuser 40 Connecting rod 21 First blade 50 Air sweeping motor 22 Second blade

[0037] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0039] It should be noted that if the embodiments of the present application involve directional indications, such as up, down, left, right, front, back, etc., the directional indications are only used to explain the relative positional relationship between the components, the movement condition, etc. in a certain posture, as shown in the drawings. If the certain posture changes, the directional indications also change accordingly.

[0040] In addition, if the embodiments of the present application involve descriptions of “first”, “second”, etc., the descriptions of “first”, “second”, etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, the meaning of “and / or” appearing throughout the text is that it includes three parallel schemes. Taking “A and / or B” as an example, it includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person of ordinary skill in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0041] At present, the air conditioners with windless function in the market usually set a diffuser assembly with micropores at the air outlet to use the micropores on the diffuser assembly to intercept the airflow to reduce the wind speed. However, this diffusing method through a single diffuser assembly has poor windless diffusing effect and poor comfort effect.

[0042] The present application provides a deflector assembly, which refers to Figures 1-12The air deflector assembly comprises a first air deflector 10 and a second air deflector 20, the first air deflector 10 is provided with air deflector holes 11, the second air deflector 20 is arranged on one side of the first air deflector 10, the second air deflector 20 is provided with air holes 25, the air holes 25 are provided with cyclone vanes, and a certain gap is arranged between the first air deflector 10 and the second air deflector 20 to form an air deflection gap.

[0043] In the embodiment, the cyclone vanes comprise first vanes 21 extending from the center to the edge of the air hole 25, the included angle between each first vane 21 and the second air deflector 20 can be consistent or different. The first vanes 21 can be arranged in a spiral shape or a spoke shape. In the embodiment, a plurality of air holes 25 can be arranged side by side on the second air deflector 20 to further increase the effective area of the cyclone vanes and improve the air deflection capacity. Further, the first vanes 21 are arranged in a central symmetry in the air hole 25. Since the first vanes 21 have a certain installation angle, the air flowing into the first vanes 21 is diffused obliquely outward, and then fills the entire air deflection gap, and the air flow direction is obliquely blown to the second air deflector 20, the air diffuses along the surface of the second air deflector 20, and then is discharged from the air deflector holes 11 under the positive pressure of the air outlet. The air forms a turbulent flow in the air deflection gap under the guidance of the cyclone vanes, and consumes kinetic energy. Compared with the single-stage air deflection scheme in the prior art in which the air is vertically blown to the air deflector, the air deflection effect of the present application is better through two-stage air deflection of the two air deflectors, and the windless air deflection effect is further improved.

[0044] In the embodiment, the air hole is preferably a circular hole, and can also be arranged in a rectangular shape to fully utilize the gap between the adjacent two air holes and increase the air volume. When the air hole is rectangular, it is preferably square. The side length is slightly smaller than the width of the air deflector assembly, so that the air holes can be arranged in a row along the length direction of the second air deflector 20. In the embodiment, the cross section of the air deflection gap can be a regular rectangle, or a shuttle shape, a crescent shape, etc.

[0045] In an embodiment, with reference to Figures 1-12The long side of the first air diffuser plate 10 is provided with a first gap 12, and the long side of the second air diffuser plate 20 is provided with a second gap 26. The two ends of the first air diffuser plate 10 are provided with hinged columns. The first gap 12 and the second gap 26 are used to avoid the grating at the air outlet or the connecting link 40 of the air deflector assembly. The edge of the second air diffuser plate 20 extends in the direction towards the first air diffuser plate 10 to form a closed flange. The outside of the flange is provided with a bayonet. The edge of the first air diffuser plate 10 towards the second air diffuser plate 20 extends outwardly to form a protrusion which is inserted into the above-mentioned bayonet. After the first air diffuser plate 10 and the second air diffuser plate 20 are connected, a diffuser cavity is formed in the middle. The setting of the flange can avoid the air from escaping from the gap between the first air diffuser plate 10 and the second air diffuser plate 20 to the surrounding. In the embodiment, the air deflector assembly is formed by splicing the first air diffuser plate 10 and the second air diffuser plate 20. The diffuser cavity is formed in the inside. The rotational flow blades are formed on the second air diffuser plate 20. The diffuser holes 11 are arranged on the first air diffuser plate 10. The air flow is dispersed by the double-sided air diffuser plate, and the windless effect of the air conditioner is enhanced.

[0046] Compared with the single-layer micro-hole, the rotational flow blades increase the circumferential component velocity to reduce the cold air dispersion and avoid the direct blowing of the cold air. Then the cold air is sent out through the outer micro-hole, which can effectively improve the user experience comfort of the windless effect. In the case of achieving the windless effect, the through-flow fan speed can be appropriately increased to improve the refrigerating capacity in the windless mode and avoid the poor refrigerating effect in the windless mode.

[0047] In an embodiment, referring to Figures 1-12 The second blade 22 extends from the edge of the vent hole 25 to the center, and the first connecting piece 23 is arranged in the vent hole 25. The first blade 21 is connected to the inner wall of the first connecting piece 23, and the second blade 22 is connected to the outer wall of the first connecting piece 23. In the embodiment, the first connecting piece 23 is a ring-shaped piece, and the rotational flow blade includes two layers, i.e. the first blade 21 arranged in the ring-shaped piece and the second blade 22 arranged outside the ring-shaped piece. The first blade 21 and the second blade 22 are arranged in a radial manner. In addition, the first blade 21 and the second blade 22 can also be arranged in an arc shape, so that the vent hole is arranged in a rotational flow manner. Alternatively, the second blade 22 extends from the edge of the vent hole to the tangent direction of the first connecting piece 23. The structure of the double-layer blade can arrange as many second blades 22 as possible in the outer layer. The increase in the number of rotational flow blades can further enhance the guiding effect of the air discharged from the air outlet, and the first air diffuser plate 10 is combined to achieve the windless effect. The specific air diffusing effect can be referred to Figures 8-10The flow field simulation effect drawing in the figure. In addition, the first connecting member 23 can also be arranged in a spiral shape, and the cyclone blades can be connected to adjacent spiral lines. Similarly, more cyclone blades can be arranged by further utilizing the internal area of the air vent 25 to enhance the guiding and deceleration effect of the air discharged from the air outlet. The outermost cyclone blades are connected to the outermost spiral lines and the edge of the air vent 25.

[0048] In an embodiment, referring to Figures 1-12 , a second connecting member 24 is arranged at the center of the air vent 25, and the first blades 21 are arranged on the second connecting member 24 away from one end of the first connecting member 23. In this embodiment, the second connecting member 24 is also arranged in a ring shape, and the first blades 21 are arranged on the second connecting member 24 away from one end of the first connecting member 23. Specifically, the first blades 21 can be arranged in a radial direction, or can extend along the tangent direction of the second connecting member 24 from the inner wall of the first connecting member 23. The first blades 21 can also be arranged in an arc shape, thereby being arranged in a spiral shape in the first connecting member 23. In addition, the second connecting member 24 can also be arranged in a conical shape with the tip end away from the first air diffuser plate 10. One end of the first blades 21 is arranged on the conical surface, and the other end is arranged on the first connecting member 23. By arranging the second connecting member 24 in a conical shape with the tip end inward, the effect of guiding the air is further achieved, so that the airflow at the center of the air vent 25 is guided to the first blades 21 along the conical surface, avoiding being directly blown to the first air diffuser plate 10.

[0049] In an embodiment, referring to Figures 1-12 , the air diffuser holes 11 are square holes. Compared with circular holes, the right-angle area of the square holes can disturb the air to some extent, so that the airflow passing through the air diffuser holes 11 is dispersed again, the wind speed is reduced, and the windless effect is improved. When the air diffuser holes are circular, the diameter is 3-8 mm. When the air diffuser holes are square, the side length is 3-8 mm. The spacing between two adjacent air diffuser holes is 1-3 mm. The sum of the areas of all air diffuser holes accounts for 40%-60% of the area of the first air diffuser plate 10.

[0050] Further, the air diffuser holes 11 can also be arranged in a triangular shape, specifically in an isosceles triangular shape. When the airflow passes through the corner area of the triangular shape, a vortex is generated in the hole, further dispersing the airflow. In addition, the air diffuser holes 11 can also be arranged in a special-shaped hole, or various hole types can be randomly arranged. In addition, a turbulence structure can also be arranged in the air diffuser gap, specifically including a turbulence column extending from the gap between the air diffuser holes 11 to the second air diffuser plate 12. The outer shape of the turbulence column can be arranged in a cylindrical shape and a prismatic shape, and can also be arranged in a conical shape and a pyramidal shape, or a combination of the above shapes can be randomly distributed to disturb the airflow in the air diffuser gap and consume the kinetic energy of the airflow.

[0051] In an embodiment, referring to Figures 1-12The distance between the first air diffuser 10 and the second air diffuser 20 is a, and the overall thickness of the air diffuser assembly is L, wherein a / L>0.25. If the gap is too small, i.e. a / L<0.25, the cold air is not sucked and dissipated after passing through the rotating blade, and directly passes through the flow micro-holes, so that the air outlet velocity is high, and the DR value in the range of 2.5 m in front of the crowd activity range is more than 10%; when a / L>0.25, the cold air is sucked and dissipated in the air diffuser gap after passing through the rotating blade, as shown in the test data and simulation diagram, and then passes through the micro-holes to soften the wind feeling, and the DR value in the range of 2.5 m in front of the crowd activity range is less than 5%, which improves the wind volume of the windless mode by 28%, and improves the windless ability. When one fluid flows into another fluid, due to the momentum exchange between the jet fluid flowing in and the original fluid, a part of the original fluid moves with the jet fluid, which is called entrainment effect, which is most prominent when the flow space of the fluid is small and the solid wall limits the smooth flow of the fluid.

[0052] In the embodiment, with reference to Figure 12 , the first air diffuser 10 is an arc-shaped plate, and the outer side of the first air diffuser 10 away from the second air diffuser 20 is convexly arranged, the outer side of the second air diffuser 20 away from the first air diffuser 10 is a plane, and L is the distance from the plane of the second air diffuser 20 away from the first air diffuser 10 to the most convex position of the outer convex surface of the first air diffuser. Since the first air diffuser 10 is an arc-shaped plate, the side of the first air diffuser 10 facing the rotating blade is a concave surface, the end of the first connecting piece 23 facing the concave surface is a plane, which is an end surface, and a is the distance between the most concave position of the concave surface of the first air diffuser 10 and the end surface of the first connecting piece 23. If the first air diffuser 10 is a flat plate, the side of the first air diffuser 10 facing the rotating blade is a plane, and a is the distance between the end surface of the first connecting piece 23 and the plane. If the side of the first air diffuser 10 facing the rotating blade is a convex surface, the end of the first connecting piece 23 facing the convex surface is a plane, which is an end surface, and a is the distance between the convex surface of the first air diffuser 10 and the end surface of the first connecting piece 23.

[0053] Draft feeling is an uncomfortable feeling that people often complain about in air-conditioned environment. In cooling mode, it is a local overcooling feeling. In heating mode, in addition to the cold feeling, there are also feelings of nasal and oral mucosa being too dry, difficulty breathing, etc. The draft-free feeling in the above description can be understood as: the average value of the air flow speed in the vertical plane parallel to the installation surface of the air conditioner is 0.3 m / s or less (including 0.3 m / s) at a set distance from the wall surface of the installation position of the air conditioner, and the DR (draft rating index, draft feeling index) value is less than or equal to 5%. The DR value is used to quantitatively predict the percentage of dissatisfied people caused by draft feeling. The front of the air conditioner can include a draft feeling area, a draft-free area, and a draft-free area distributed in order from near to far, the draft feeling area is closest to the air conditioner, the air flow speed in this area is larger, the user feels stronger wind feeling, and is easy to produce discomfort. The draft-free area is farthest from the air conditioner, the air flow speed in this area is close to zero, and the user cannot feel the wind feeling in this area. The draft-free area is located between the draft feeling area and the draft-free area, the air flow speed in this area is slower, the user can feel very weak wind feeling, but the air flow will not make the user feel uncomfortable, and at the same time the user can obviously feel the cooling or heating of the air conditioner, and has very high use comfort. In addition, the draft-free at a specific distance requires that the fan has a specific speed. For example, in the embodiment of the application, the speed of each fan is a constant value, and on the basis of the constant value, the speed of each fan has an adjustment range of ±50 rpm, so that the speed of the fan can be adjusted, and at the same time the air outlet effect of the draft-free of the air conditioner can be ensured.

[0054] In an embodiment, with reference to Figures 1-12 , the diameter of the first connecting piece 23 is D1, and the diameter of the ventilation hole 25 is D2, wherein 0.4≤D1 / D2≤0.7. In this embodiment, the first connecting piece 23 divides the ventilation hole 25 into two air ducts, namely an internal air duct and an outer ring air duct. By reasonably allocating the air volume ratio of the two air ducts, after the air is discharged from the two air ducts, it is further sucked and dispersed. If the ratio of D1 and D2 is not within the above range, the air volume difference between the internal air duct and the outer ring air duct is large, and the air flow suction effect of the two air ducts is not obvious, and the air dispersion effect is poor. In this embodiment, the first connecting piece 23 is a ring-shaped piece, the ventilation hole 25 is a circular hole, D1 is the inner diameter of the first connecting piece 23, and D2 is the inner diameter of the ventilation hole 25.

[0055] In an embodiment, with reference to Figures 1-12, the overall width of the air deflector assembly is H, and the diameter of the vent hole 25 is D2, wherein 0.7≤D2 / H≤0.9. In the present embodiment, the diameter of the vent hole 25 is increased as much as possible under the condition that the structural strength of the second air deflector 20 is satisfied, so that the air volume of the air outlet is further increased under the condition that the blowing feeling is satisfied, thereby enhancing the refrigeration effect in the windless mode. In the present embodiment, the air deflector assembly is in a long strip shape, and H is the overall width of the air deflector assembly, i.e., the distance between the sides where the two long sides of the air deflector assembly are located.

[0056] With reference to Figure 10 , the air conditioner fluid passes through the elementary stage velocity triangle of the cyclone blade, C is the absolute velocity, Ca is the axial component velocity, Cu is the circumferential component velocity, the larger the installation angle (the angle between the cyclone blade and the second air deflector 20) is, the larger the flow area is, the larger the flow rate is, and the smaller the circumferential velocity is, and the worse the soft wind feeling effect is. The smaller the installation angle is, the smaller the flow area is, the smaller the flow rate is, and the larger the circumferential velocity is, and the smaller the windless air volume is; the flow area and the circumferential velocity are comprehensively considered. The setting ranges of α and β in the following embodiments can be referred to.

[0057] In an embodiment, with reference to Figures 1-12 , the angle between the first blade 21 and the second air deflector 20 is α, the angle between the second blade 22 and the second air deflector 20 is β, the α and the β are acute angles, or the α and the β are obtuse angles, or one of the α and the β is an acute angle and the other is an obtuse angle. In the present embodiment, the inclination directions of the first blade 21 and the second blade 22 can be consistent, i.e., the α and the β are both acute angles or both obtuse angles. The inclination directions of the cyclone blades in the adjacent two vent holes 25 are opposite, i.e., one of the α and the β is an acute angle and the other is an obtuse angle. Thus, the air flows output from the adjacent vent holes 25 can be mutually entrained, thereby further dispersing the air flow. In addition, in the same vent hole 25, the inclination directions of the first blade 21 and the second blade 22 are opposite, so that the directions of the radial velocities of the air flows from the inner air duct and the outer ring air duct are opposite, thereby also producing an entrainment effect and dispersing the air flow. In the present embodiment, the first blade is developed along the radial direction to obtain the structure shown in Figure 4 , and the α is the angle between the wind receiving surface of the first blade 21 and the end surface of the first connecting piece 23. Similarly, the second blade is developed along the radial direction to obtain the structure shown in Figure 5 , and the β is the angle between the wind receiving surface of the second blade 21 and the end surface of the first connecting piece 23.

[0058] In an embodiment, when the alpha and beta are acute angles, the alpha < beta, when the alpha and beta are obtuse angles, the alpha > beta. In this embodiment, the tilt directions of the first vanes 21 and the second vanes 22 can be consistent, at this time, the directions of the radial velocities of the air flows guided by the first vanes 21 and the second vanes 22 are the same. However, the tilt degree of the first vanes 21 is greater than the tilt degree of the second vanes 22, the radial velocity of the air flow in the inner air duct is greater, and the air flow blown in the outer air duct can be guided to a certain extent. While ensuring the ventilation volume, the diffusion speed of the air diffused to the air diffusion gap along the radial direction is improved, the axial air speed is reduced, and the windless effect is improved.

[0059] In an embodiment, referring to Figures 1-12 , 30° < alpha < 60°, 120° < beta < 150°. Referring to Figure 6 and Figure 7 , in the alpha-DR relationship diagram, the alpha is in the interval of 30°-65°, and the DR value is maintained in a small range, i.e. 5%-10%. When the alpha is 30°, the DR value is 9%; when the alpha is 35°, the DR value is 5%; when the alpha is 40°, the DR value is 4.5%; when the alpha is 60°, the DR value is 4.5%; and when the alpha is 65°, the DR value is 7%.

[0060] In the beta-DR relationship diagram, the beta is in the interval of 120°-160°, and the DR value is maintained in a small range, i.e. 2.5%-5%, and the effect is better. When the beta is 120°, the DR value is 5%; when the beta is 150°, the DR value is 2.5%; and when the beta is 160°, the DR value is 5%. In Figure 2 an embodiment, the installation angle alpha of the first air diffusion plate 10 is 35°, and the installation angle beta of the second air diffusion plate 20 is 150°, so that the air diffusion effect is better, the DR value is reduced, and the windless effect is improved.

[0061] In an embodiment, referring to Figures 1-12 , the first vanes 21 are at least 3, and the second vanes 22 are at least 6. In this embodiment, at least 3 first vanes 21 are arranged in the inner air duct, so that the air guiding effect is improved as much as possible under the condition of meeting the exhaust air volume. If only two first vanes 21 are arranged, the air guiding effect is lower, the axial velocity of the air flow in the region between the two first vanes 21 is greater, and the flow direction of the air flow close to the two first vanes 21 is also affected. The principle and effect of arranging at least 6 second vanes 22 in the outer air duct are the same as above, and details are not repeated here. In addition, by reasonably adjusting the number of the first vanes 21 and the second vanes 22, the air outlet area of a single grid hole formed between two adjacent first vanes 21 and the air outlet area of a single grid hole formed between two adjacent second vanes 22 are kept substantially the same, so that the flow balance between the grid holes is ensured, and the exhaust air noise is reduced. Figure 2In the shown embodiment, the first vane 21 has 5 pieces, and the second vane has 12 pieces.

[0062] In an embodiment, referring to Figures 1-12 , referring to Figure 4 and Figure 5 , the first vane 21 has 5 pieces, and the corresponding installation angles are α1, α2, α3, α4 and α5; the schematic diagram is a coaxial cylindrical surface section expansion diagram, and the installation angle is defined as the included angle between the rotational flow and the second air diffuser 20; the second vane 22 has 12 pieces, and the corresponding installation angles are β1, β2,..., β12. The installation angles of the first vanes 21 can be the same or different. The installation angles of the second vanes 22 can be the same or different. The air conditioner air is increased to the radial distribution speed Cu through the second air diffuser 20, and then the double-layer air control technology of the first air diffuser 10 is used to superimpose rotational flow and turbulence, so as to realize the decrease of the blowing feeling index in the personnel activity range and the improvement of the comfortable experience.

[0063] In an embodiment, referring to Figures 1-12 , the air vents 25 are arranged along the length direction of the second air diffuser 20, and the center distance between adjacent air vents 25 is 1.05D2~1.1D2. In the case of meeting the structural strength of the second air diffuser 20, more air vents 25 are arranged as much as possible to improve the air volume and enhance the windless effect, and the air loss inside the air conditioner can also be reduced.

[0064] The application also provides an air conditioner indoor unit, referring to Figures 1-12 , comprising the above-mentioned multiple sets of air deflector assemblies and a driving mechanism for driving the linkage of each air deflector assembly. In the embodiment, the air conditioner indoor unit comprises an air outlet arranged along the vertical direction, and a fixed seat for mounting the air deflector assembly is arranged at the upper and lower ends of the air outlet. Correspondingly, two sets of air deflector assemblies are arranged at the air outlet, which are respectively an upper air deflector assembly and a lower air deflector assembly. The upper end of the upper air deflector assembly is hinged to the fixed seat at the upper end. The lower air deflector assembly is hinged to the fixed seat at the lower end, and the air deflector assemblies are arranged in parallel and connected by a connecting rod 40. Specifically, a first hinge shaft is arranged at the two ends of the upper air deflector assembly and the lower air deflector assembly, and a second hinge shaft 13 hinged to the connecting rod 40 is further arranged on the air deflector assembly. The second hinge shaft 13 is arranged on the same side as the first notch 12 and is arranged close to the two ends of the first air diffuser 10. A sweeping motor 50 is arranged at the upper end of the air conditioner indoor unit, and a crank is arranged on the rotating shaft of the sweeping motor 50. The crank and the connecting rod 40 are hinged, thereby forming a four-bar linkage 40 mechanism. When the sweeping motor 50 rotates, it can drive the swinging of the air deflector assembly.

[0065] The air conditioner guide vane assembly is provided with a double-layer structure, one layer is a first air diffusing vane 10 provided with air diffusing holes 11, and the other layer is a second air diffusing vane 20 provided with rotating flow vanes, and an air diffusing gap is arranged between the two air diffusing vanes. When the air conditioner is started in the windless mode, the guide vane assembly shields the air outlet of the air conditioner, air is discharged from the air outlet of the air conditioner, guided by the rotating flow vanes, diffused into the air diffusing gap, and then discharged from the air diffusing holes 11. Compared with the scheme of air flow diffusing through a single-layer micro-hole guide vane, the air diffusing effect of the air conditioner is better, and the windless air diffusing effect is further improved. Thus, the user, especially children, in the cold air prevention area can be effectively prevented from being directly blown by strong air flow, and the user can be effectively prevented from catching a cold and other uncomfortable symptoms, the safety and reliability of the air conditioner are improved, and the user experience is improved.

[0066] The application further provides a control method of the air conditioner indoor unit.

[0067] In the windless mode, the air conditioner indoor unit is started, the air conditioner indoor unit is shielded by the guide vane assembly, and the air conditioner indoor unit is shielded by the guide vane assembly. In this step, when the air conditioner is in the windless mode, a control instruction is sent to the air conditioner indoor unit. The control module in the air conditioner indoor unit receives the control instruction and drives the connecting rod to rotate to drive the guide vane assembly to swing until the air outlet is shielded. The shielding state can be completely shielded or half shielded, and it is assumed to be completely shielded.

[0068] The air conditioner is controlled to cool or heat, and the cross-flow fan is controlled to rotate. In this step, the control module controls the cross-flow fan to rotate according to the cooling instruction or the heating instruction emitted by the external remote controller or the preset cooling instruction or the heating instruction, and the air conditioner is controlled to cool or heat. The cold air and the hot air are discharged from the air outlet. The cold air or the hot air blown out of the air outlet is subjected to convolution and dissipates kinetic energy under the air diffusing effect of the double-layer air diffusing vane, and finally is discharged from the air diffusing hole 11 to achieve the windless effect. Compared with the mode of directly blowing the air diffusing hole 11, the windless effect of the air conditioner is more excellent.

[0069] The above is only an optional embodiment of the application, and does not limit the patent scope of the application. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the inventive concept of the application and the contents of the specification and drawings are included in the patent protection scope of the application.

Claims

1. A visor assembly, comprising: The application relates to a wind deflector assembly. The first wind deflector is provided with wind deflector holes. The second wind deflector is provided with cyclone vanes in the air holes. The first wind deflector and the second wind deflector are provided with a certain space to form a wind deflector gap.

2. The vane assembly of claim 1, wherein, The edge of the second wind deflector extends in the direction of the first wind deflector to form a closed flange.

3. The vane assembly of claim 2, wherein, The space between the first wind deflector and the second wind deflector is a, and the overall thickness of the wind deflector assembly is L, wherein a / L>0.

25. The cyclone vanes include first vanes extending from the center of the air hole to the edge of the air hole.

4. The vane assembly of claim 3, wherein, The cyclone vanes include second vanes extending from the edge of the air hole to the center.

5. The visor assembly of claim 1, wherein, The second wind deflector is provided with a first connecting piece in the air hole.

6. The visor assembly of claim 3, wherein, The first vanes are connected to the inner wall of the first connecting piece, and the second vanes are connected to the outer wall of the first connecting piece.

7. The visor assembly of claim 3, wherein, The second wind deflector is provided with a second connecting piece in the center of the air hole.

8. The visor assembly of claim 3, wherein, The first vanes are arranged on the second connecting piece away from one end of the first connecting piece.

9. The visor assembly of claim 8, wherein, 30°<α<60°，120°<β<150°。 10. The visor assembly of claim 8, wherein, The wind deflector holes are square holes.

11. The wind deflector assembly of claim 3, wherein, The diameter of the first connecting piece is D1, and the diameter of the air hole is D2, wherein 0.4<=D1 / D2<=0.

7.

12. An air conditioner indoor unit characterized by comprising: The overall width of the wind deflector assembly is H, and the diameter of the air hole is D2, wherein 0.7<=D2 / H<=0.

9. The included angle between the first vanes and the second wind deflector is alpha, and the included angle between the second vanes and the second wind deflector is beta. When alpha and beta are acute angles, alpha<beta, and when alpha and beta are obtuse angles, alpha>beta. The first vanes are at least three, and the second vanes are at least six. The application relates to a wind deflector assembly. The application relates to a wind deflector assembly.

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