Air diffuser, air diffuser assembly and air conditioner

Abstract

The utility model provides a kind of louvers, air diffusing assembly and air conditioner, it is related to air conditioner technical field to solve the problem of poor air diffusing effect of louver.The louver includes louver body, and louver body is distributed with multiple air diffusing holes, air diffusing hole is formed by class A recess and class B recess communication, class A recess is recessed from the first surface of louver body, class B recess is recessed from the second surface of louver body, and the first surface and the second surface are the surface opposite in the thickness direction of louver body;One class A recess is communicated with multiple class B recesses to form multiple air diffusing holes, and / or, one class B recess is communicated with multiple class A recesses to form multiple air diffusing holes.It can improve the air flow of louver.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, specifically to an air diffuser, an air diffuser assembly, and an air conditioner. Background Technology

[0002] Existing air conditioner indoor units typically disperse airflow through diffuser panels. Specifically, these panels have perforations running along their thickness. When the airflow from the air conditioner encounters the diffuser panel, the small diameter of these perforations prevents the airflow from traveling a significant distance after exiting the perforations and reaching the outlet side of the panel. This is intended to achieve airflow dispersion and a near-zero draft. However, because the airflow only experiences one convergence at the inlet of the perforations and one diffusion at the outlet, its dispersion effect is inadequate. Utility Model Content

[0003] The first objective of this utility model is to provide a diffuser plate to solve the technical problem of poor air dispersion effect of existing diffusers plate.

[0004] The first aspect of this utility model provides an air diffuser plate, including an air diffuser plate body portion, wherein the air diffuser plate body portion is provided with a plurality of air diffuser holes, the air diffuser holes being formed by communication between a type A recess and a type B recess, the type A recess being recessed from a first surface of the air diffuser plate body portion, and the type B recess being recessed from a second surface of the air diffuser plate body portion, wherein the first surface and the second surface are surfaces opposite to each other in the thickness direction of the air diffuser plate body portion; one type A recess is connected to a plurality of type B recesses to form a plurality of air diffuser holes, and / or one type B recess is connected to a plurality of type A recesses to form a plurality of air diffuser holes.

[0005] Taking the first surface as the windward side of the diffuser and the second surface as the air outlet side of the diffuser as an example, when the airflow enters the Class A recess, which serves as the air inlet chamber, it first contracts, then disperses and enters multiple diffuser holes. As it flows out of the diffuser holes and enters the Class B recesses connected to each diffuser hole, it expands again. The airflow entering each Class B recess enters through diffuser holes connecting different Class A recesses, and the Class B recesses have a secondary mixing effect of converging and dispersing. The airflow passing through the diffuser is not only dispersed by the diffuser but also undergoes multiple stages of contraction, dispersion, diffusion, and mixing, significantly improving the airflow dispersion effect. Furthermore, this design allows for the formation of multiple diffuser holes by machining a single recess on the surface of the diffuser, increasing the number of diffuser holes and thus improving the density of diffuser holes per unit area, maintaining an effective airflow.

[0006] In an optional technical solution, a type A protrusion is formed between multiple type A recesses, and in the thickness direction of the air diffuser body, the type B recesses are correspondingly arranged with the type A protrusions. This arrangement has two advantages: firstly, the type B recesses can be accommodated by the solid portion of the type A protrusion, reducing the overall thickness of the air diffuser, decreasing the overall material usage, and lowering the cost of the air diffuser. Secondly, the recesses that interconnect to form the air diffuser holes are arranged in this way so that most of the remaining solid material forms an edge with a large acute angle to the surface of the air diffuser body, which helps to enhance the rigidity and strength of the air diffuser body with a smaller material usage.

[0007] In an optional technical solution, a Class A protrusion is formed between the three Class A recesses; the Class B recess corresponding to the Class A protrusion is connected to the three Class A recesses surrounding the Class A protrusion. Forming a Class A protrusion between the three Class A recesses maximizes the number of Class A recesses on the air diffuser plate while maintaining the same size and spacing, resulting in the highest density of Class A recesses and thus increasing the distribution density of the air diffuser holes.

[0008] In an optional technical solution, multiple Class A recesses are evenly distributed, and / or multiple Class B recesses are evenly distributed. This arrangement ensures that the multiple air diffusers connected to the Class A recesses are evenly distributed, and the multiple air diffusers connected to the Class B recesses are evenly distributed. This improves the uniformity of airflow dispersion to the multiple air diffusers in the Class A recesses (which serve as the air inlet chamber), and also improves the uniformity of airflow through the multiple air diffusers in the Class B recesses (which serve as the air outlet chamber), thereby improving the directional stability of the airflow and reducing noise after the airflow passes through the diffuser plate.

[0009] In an optional technical solution, the recessed surface of the recess is a sphere. Using a sphere as the recessed surface allows the airflow direction to gradually change as it flows through the recess, thereby reducing energy loss.

[0010] In an optional technical solution, the diffuser hole has a hole wall portion, which smoothly transitions to the recessed surface of the recessed portion. By providing the hole wall portion, the depth of the diffuser hole can be appropriately controlled, thereby reducing the abruptness of airflow direction changes and helping to control noise. Furthermore, the smooth transition between the hole wall portion and the recessed surface further helps to reduce the speed of airflow direction changes, making the airflow between the recessed portion, the diffuser hole, and the recessed portion more stable.

[0011] The second objective of this utility model is to provide an air conditioner that solves the technical problem of poor air dispersion effect of the air diffuser.

[0012] The air conditioner provided in the second aspect of this utility model includes an indoor unit and an outdoor unit. The indoor unit is provided with a diffuser as described above at its air outlet. The indoor unit and the outdoor unit are connected by a refrigerant connection pipe.

[0013] By installing the aforementioned air diffuser in the air conditioner, the air conditioner gains all the advantages of the aforementioned air diffuser, which will not be elaborated here.

[0014] The third aspect of this utility model provides an air dispersing assembly comprising a first air dispersing plate and a second air dispersing plate that are stacked and fixedly connected, wherein the first air dispersing plate and the second air dispersing plate are both air dispersing plates as described above.

[0015] By incorporating the aforementioned air diffuser plate into the air diffuser assembly, the air diffuser assembly acquires all the advantages of the aforementioned air diffuser plate, which will not be elaborated upon here.

[0016] In an optional technical solution, the first air diffuser includes a base plate portion and a limiting sidewall portion disposed on the edge of the base plate portion, at least a portion of the base plate portion forms the air diffuser body portion, and the edge of the second air diffuser is limited by the limiting sidewall portion.

[0017] By setting a limiting sidewall at the edge of the first air diffuser, the second air diffuser can be laterally limited. This not only improves the overall stability of the air diffuser assembly, but also prevents the second air diffuser and the first air diffuser from moving laterally during the operation of the air conditioner. This prevents the positional correspondence between the air diffuser holes on the first air diffuser and the air diffuser holes on the second air diffuser from changing and affecting the air diffuser's air diffusion effect.

[0018] The fourth aspect of this utility model aims to provide an air conditioner that solves the technical problem of poor air dispersion effect of the air diffuser.

[0019] The air conditioner provided in the fourth aspect of this utility model includes an indoor unit and an outdoor unit. The air outlet of the indoor unit is provided with a diffuser assembly as described above. The indoor unit and the outdoor unit are connected by a refrigerant connection pipe. When the air conditioner is in zero-wind mode, the first diffuser is located on the leeward side of the second diffuser.

[0020] With this configuration, the airflow direction is such that the second diffuser plate is closer to the first diffuser plate, and the overall airflow velocity within the diffuser assembly decreases. The airflow force on the second diffuser plate is greater than that on the first diffuser plate. In other words, the force exerted by the airflow on each diffuser plate is such that the force on the second diffuser plate closer to the first diffuser plate is greater than the force on the first diffuser plate farther from the second diffuser plate. If the diffuser assembly is fixedly installed within the air conditioner unit's main body, fixing the first diffuser plate will also fix the second diffuser plate. If the diffuser assembly is rotatably installed within the air conditioner unit, its rotating shaft can be positioned on the second diffuser plate, avoiding interference with the connection between the first and second diffuser plates if it is positioned on the first diffuser plate. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments or background art of this utility model, the drawings used in the description of the embodiments or background art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the air diffuser provided in Embodiment 1 of this utility model.

[0023] Figure 2 This is a schematic diagram of the air diffuser plate provided in Embodiment 1 of this utility model, viewed from another direction.

[0024] Figure 3 This is a schematic diagram (A) showing the formation of air vents in the air vent body of the air vent provided in Embodiment 1 of this utility model.

[0025] Figure 4 This is a schematic diagram (B) showing the formation of air vents in the air vent body of the air vent provided in Embodiment 1 of this utility model.

[0026] Figure 5 This is a schematic diagram of the structure of multiple spherical spaces forming air dissipation holes in the air diffuser plate provided in Embodiment 1 of this utility model, which are connected together.

[0027] Figure 6 This is a schematic diagram of the cell structure of the air diffuser body in Embodiment 1 of this utility model.

[0028] Figure 7 This is a schematic diagram of the structure of the unit cell of the air diffuser body in Embodiment 1 of this utility model, viewed from another direction.

[0029] Figure 8This is a schematic diagram of the air dissipation component provided in Embodiment 2 of this utility model.

[0030] Figure 9 This is a schematic diagram of the air dissipation component provided in Embodiment 2 of this utility model, viewed from another direction.

[0031] Figure 10 This is a three-dimensional disassembled view of the air dissipation component provided in Embodiment 2 of this utility model.

[0032] Figure 11 This is a three-dimensional disassembled view of the air dissipation component provided in Embodiment 2 of this utility model.

[0033] Figure 12 for Figure 10 Enlarged views of parts A and B.

[0034] Figure 13 for Figure 11 Enlarged views of parts C and D.

[0035] Figure 14 This is a schematic diagram showing the correspondence between the air diffuser holes and the recessed portion in the air diffuser assembly provided in Embodiment 2 of this utility model.

[0036] Figure 15 This is a partial cross-sectional view of another implementation of the air dissipation component provided in Embodiment 2 of this utility model.

[0037] Figure 16 This is a schematic diagram of the structure of the wall-mounted indoor unit of the air conditioner provided in Embodiment 3 of this utility model.

[0038] Figure 17 This is a schematic diagram of the structure of a wall-mounted indoor unit of an air conditioner, which is another implementation of the present invention as provided in Embodiment 3.

[0039] Figure 18 This is a schematic diagram of the structure of the wall-mounted indoor unit of the air conditioner provided in Embodiment 3 of this utility model, viewed from another direction.

[0040] Figure 19 This is a three-dimensional sectional view of the wall-mounted indoor unit of the air conditioner provided in Embodiment 3 of this utility model.

[0041] Figure 20 This is a cross-sectional view of the wall-mounted indoor unit of the air conditioner in zero-wind mode, as provided in Embodiment 3 of this utility model.

[0042] Figure 21 This is a cross-sectional view of the wall-mounted indoor unit of the air conditioner in cooling mode, as provided in Embodiment 3 of this utility model.

[0043] Figure 22This is a cross-sectional view of the wall-mounted indoor unit of the air conditioner in heating mode, as provided in Embodiment 3 of this utility model.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100 - Diffuser plate; 110 - Diffuser plate body; 120 - Diffuser hole; 130 - Recessed part; 131 - Class A recessed part; 132 - Class B recessed part; 140 - Protrusion; 141 - Class A protrusion; 142 - Class B protrusion;

[0046] 210 - First air diffuser; 211 - Limiting sidewall portion; 212 - Base plate portion; 213 - First magnetic suction portion; 220 - Second air diffuser; 221 - Second magnetic suction portion; 222 - Rotating shaft;

[0047] 301 - First air diffuser hole; 302 - Second air diffuser hole; 303 - Third air diffuser hole; 304 - Fourth air diffuser hole; 305 - Fifth air diffuser hole; 306 - Sixth air diffuser hole; 307 - Seventh air diffuser hole; 308 - Eighth air diffuser hole; 309 - Ninth air diffuser hole; 310 - Tenth air diffuser hole; 311 - Eleventh air diffuser hole; 312 - Twelfth air diffuser hole; 313 - Thirteenth air diffuser hole; 314 - Fourteenth air diffuser hole;

[0048] 401 - First recessed portion; 402 - Second recessed portion; 403 - Third recessed portion; 404 - Fourth recessed portion; 405 - Fifth recessed portion; 406 - Sixth recessed portion; 407 - Seventh recessed portion; 408 - Eighth recessed portion; 409 - Ninth recessed portion; 410 - Tenth recessed portion; 411 - Eleventh recessed portion; 412 - Twelfth recessed portion; 413 - Thirteenth recessed portion; 414 - Fourteenth recessed portion; 415 - Fifteenth recessed portion; 416 - Sixteenth recessed portion; 417 - Seventeenth recessed portion;

[0049] 501 - First protrusion; 502 - Second protrusion; 503 - Third protrusion;

[0050] 710 - Air inlet; 720 - Indoor heat exchanger; 730 - Lower front air outlet; 740 - Lower front diffuser; 750 - Lower front air outlet; 760 - Lower front diffuser. Detailed Implementation

[0051] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0052] This application uses a wall-mounted air conditioner indoor unit as an example, but this does not preclude the application of the product to a cabinet-type air conditioner indoor unit. Unless otherwise specified, the definitions of direction in this application are as follows: "Front" refers to the side of the wall-mounted air conditioner indoor unit facing the main indoor space, while "rear" refers to the side facing the wall on which it is mounted. "Below" refers to the side of the wall-mounted air conditioner indoor unit facing the ground. "Above" refers to the side of the wall-mounted air conditioner indoor unit facing the ceiling. "Left" and "right" can be defined based on the aforementioned front, rear, and below; that is, when an observer faces the wall where the wall-mounted air conditioner indoor unit is installed, the observer's left hand is the left side, and the observer's right hand is the right side. Furthermore, "inner" and "outer" are defined based on the shape of a cavity, box, or cylinder; the side of the cavity, box, or cylinder facing its internal space is the inner side, and the outer side is the side of the cavity or box facing its external space.

[0053] Example 1:

[0054] Figure 1 This is a schematic diagram of the structure of the air diffuser provided in Embodiment 1 of this utility model. Figure 2 This is a schematic diagram of the air diffuser plate provided in Embodiment 1 of this utility model, viewed from another direction. Figure 1 and Figure 2 As shown, the air diffuser 100 provided in Embodiment 1 of this utility model includes an air diffuser body 110, which has a plurality of air diffuser holes 120 distributed thereon. The air diffuser holes 120 are formed by connecting a type A recess 131 and a type B recess 132. The type A recess 131 is recessed from the first surface of the air diffuser body 110, and the type B recess 132 is recessed from the second surface of the air diffuser body 110. The first surface and the second surface are surfaces opposite to each other in the thickness direction of the air diffuser body 110. One type A recess 131 connects with a plurality of type B recesses 132 to form a plurality of air diffuser holes 120, and one type B recess 132 connects with a plurality of type A recesses 131 to form a plurality of air diffuser holes 120.

[0055] Taking the first surface as the windward side of the diffuser plate 100 and the second surface as the air outlet side of the diffuser plate 100 as an example, when the airflow enters the Class A recess 131, which serves as the air inlet chamber, it first contracts, then disperses and enters multiple diffuser holes 120. As it flows out of the diffuser holes 120 and into the Class B recesses 132 connected to each diffuser hole 120, it can expand again. The airflow entering each Class B recess 132 enters through the diffuser holes 120 connecting different Class A recesses 131. The Class B recesses 132 also have a secondary mixing effect of converging and dispersing. The airflow passing through the diffuser plate 100 is not only dispersed by the diffuser plate 100, but also undergoes multiple stages of contraction, dispersion, diffusion, and mixing, significantly improving the airflow dispersion effect. Moreover, this arrangement allows for the formation of a recess 130 on the surface of the air diffuser plate 100, which in turn creates multiple air diffuser holes 120. This increases the number of air diffuser holes 120, thereby improving the density of air diffuser holes 120 per unit area of ​​the air diffuser plate 100 and maintaining effective airflow.

[0056] In this embodiment, the air diffuser 100 is installed at the air outlet of the indoor unit of the wall-mounted air conditioner. When the air diffuser 100 functions to diffuse air, the airflow from the air conditioner passes through the air diffuser 100 from one side and enters the room from the other side. The overall direction of the airflow passing through the air diffuser 100 is roughly the same as the thickness direction of the air diffuser 100. Because the air diffuser 100 is provided with air dispersing holes 120, the diameter of which is small, usually only a few millimeters or less, the airflow speed is significantly reduced after passing through the air dispersing holes 120. This achieves the goal of the air conditioner supplying cool air to the room without the user being directly exposed to cold air, which is commonly referred to as zero wind sensation.

[0057] It should be noted that, in this embodiment, the Class A recesses 131 and multiple Class B recesses 132 forming ventilation holes 120 do not include recesses 130 located at the edges of the first or second surface. The number of ventilation holes 120 formed by the edge recesses 130 may be less than the number of ventilation holes 120 formed by the non-edge recesses 130. Furthermore, in a row of recesses 130 in the edge region, the recesses 130 at both ends may only form one ventilation hole 120 with a recess 130 located on another surface. Moreover, the terms Class A recesses 131 and Class B recesses 132 are not absolute limitations on the types of recesses 130, but are used to distinguish that the recesses 130 on the first surface of the ventilation plate 110 are called Class A recesses 131, and the recesses 130 on the second surface are called Class B recesses 132.

[0058] Furthermore, by utilizing the recessed portion 130 to form the air diffuser 120, the length of the air diffuser 120 can be shortened, thereby shortening the total length of the area with a smaller aperture. That is, when the airflow passes through the air diffuser 120, the length of the section with greater resistance due to the smaller aperture of the air diffuser 120 will be shortened, reducing the overall resistance of the airflow when passing through the air diffuser 120.

[0059] Figure 3 This is a schematic diagram (A) showing the formation of air vents in the air vent body of the air vent provided in Embodiment 1 of this utility model. Figure 4 This is a schematic diagram (B) showing the formation of air vents in the air vent body of the air vent provided in Embodiment 1 of this utility model. Figure 5 This is a schematic diagram of the structure of multiple spherical spaces forming air dissipation holes in the air diffuser plate provided in Embodiment 1 of this utility model, which are connected together. Figure 6 This is a schematic diagram of the cell structure of the air diffuser body in Embodiment 1 of this utility model. Figure 7 This is a schematic diagram of the structure of the unit cell of the air diffuser body in Embodiment 1 of this utility model, viewed from another direction. Figures 1 to 7 As shown, optionally, a type A protrusion 141 is formed between a plurality of type A recesses 131, and in the thickness direction of the air diffuser body 110, a type B recess 132 is provided corresponding to a type A protrusion 141.

[0060] This design allows the solid portion of the Type A protrusion 141 to accommodate the Type B recess 132, reducing the overall thickness of the air diffuser 100, decreasing the overall material usage, and lowering the cost of the air diffuser 100. Furthermore, the recess 130, which connects to the air diffuser holes 120, is designed such that most of the remaining solid material forms an edge with a large acute angle to the surface of the air diffuser body 110, which helps to enhance the rigidity and strength of the air diffuser body 110 with a smaller material usage.

[0061] like Figures 1 to 7 As shown, optionally, a Class A protrusion 141 is formed between the three Class A recesses 131, and in the thickness direction of the air diffuser body 110, a Class B recess 132 is provided corresponding to the Class A protrusion 141; the Class B recess 132 corresponding to the Class A protrusion 141 is connected to the three Class A recesses 131 surrounding the Class A protrusion 141.

[0062] By forming a Class A protrusion 141 between the three Class A recesses 131, the maximum number of Class A recesses 131 can be arranged on the air diffuser plate 110 under the condition that the size and spacing of the Class A recesses 131 are the same, that is, the arrangement density of the Class A recesses 131 is the largest, which is beneficial to increase the distribution density of the air diffuser holes 120.

[0063] Specifically, in this embodiment, in addition to the recesses 130 located at the edge of each surface of the air diffuser plate 110, six recesses 130 are evenly distributed around each recess 130, i.e., three adjacent recesses 130 form an equilateral triangle. In other words, the angle between the line connecting the multiple adjacent recesses 130 of a recess 130 and the recess 130 is 60°. Of course, the recesses 130 located at the edge also have two adjacent recesses 130 in the length direction of the edge. Moreover, in a row or column of recesses 130 adjacent to the recess 130, the angle between the line connecting the two nearest recesses 130 and the recess 130 is 60°, and the angle between these two recesses 130 and the length direction of the edge is also 60°. Of course, in another implementation, the recesses 130 on each surface of the air diffuser plate 110 can also be arranged in a rectangular array.

[0064] In this embodiment, disregarding the recesses 130 located at the edges, in each diffuser plate 100, a type B recess 132 corresponds to a type A protrusion 141 between three adjacent type A recesses 131 on the other surface. That is, the three adjacent type A recesses 131 are arranged in an equilateral triangle; specifically, the type B recess 132, projected along the thickness direction of the diffuser plate 100, is located at the center of the equilateral triangle formed by the three adjacent type A recesses 131, or corresponds to the type A protrusion 141 in the middle of the three adjacent type A recesses 131. In other words, each type A recess 131 also corresponds to a type B protrusion 142 between three type B recesses 132. That is, each recess 130 can form three diffuser holes 120 with the three recesses 130 on the other surface. In this embodiment, all recesses 130 are the same size and shape. Therefore, the three air vents 120 of the three recesses 130 on the other side are also arranged in an equilateral triangle, and the plane of the equilateral triangle is perpendicular to the thickness direction of the air vent plate 100.

[0065] Specifically, you can refer to Figure 5 and Figure 6Without considering the recesses 130 at the edge positions, one-third of a type B recess 132 forming three ventilation holes 120 and three type A recesses 131, along with the type A protrusions 141 corresponding to the type B recesses 132, can form a structure similar to a unit cell in chemistry. Each unit cell occupies a regular hexagonal prism space, and the ventilation plate 110 can include a plurality of such unit cells. These unit cells on each ventilation plate 110 are arranged closely in a honeycomb structure in the plane. Of course, in another implementation, the recesses 130 on each surface of the ventilation plate 110 can also be arranged in a rectangular array. Without considering the recesses 130 at the edge positions, the type B recesses 132 on one side surface correspond to the center of four adjacent type A recesses 131 on the other side surface.

[0066] In this embodiment, each air diffuser 120 is formed by two recesses 130, and each type A recess 131 and three type B recesses 132 form three air diffusers 120. Therefore, the ratio of air diffusers 120 to recesses 130 is approximately 3 / 2 = 1.5. This ratio is approximately 1.5 because the recesses 130 at the edges cannot guarantee that each recess 130 connects to three air diffusers 120. However, if the recesses 130 are arranged in a matrix array, each type A recess 131 can form an air diffuser 120 with four type B recesses 132, resulting in a ratio of air diffusers 120 to recesses 130 that is approximately 4 / 2 = 2. However, by arranging three recesses 130 adjacently, under the same conditions (e.g., the size of the recesses 130 and the center-to-center distance between them are the same), the number of recesses 130 in the plane can be increased, ensuring a sufficient number of air diffusers.

[0067] like Figures 1 to 2 As shown, optionally, multiple Class A depressions 131 are evenly distributed, and multiple Class B depressions 132 are evenly distributed.

[0068] This configuration ensures that the multiple air diffusers 120 connected to the Class A recess 131 are evenly distributed, as are the multiple air diffusers 120 connected to the Class B recess 132. This improves the uniformity of airflow distribution to the multiple air diffusers 120 within the Class A recess 131 (which serves as the air inlet) and the uniformity of airflow through the multiple air diffusers 120 within the Class B recess 132 (which serves as the air outlet). It also enhances the directional stability of the airflow and reduces noise after the airflow passes through the diffuser plate 100.

[0069] Both Class A recesses 131 and Class B recesses 132 are evenly distributed, and the axes of the diffuser holes 120 are inclined relative to the thickness direction of the diffuser plate body 110. The inclination angles of each diffuser hole 120 relative to the thickness direction of the diffuser plate body 110 are consistent. Therefore, when the airflow from the Class A recesses 131 enters each diffuser hole 120, the angle between the diffuser hole 120 and the recess depth direction of the Class A recesses 131 is consistent; similarly, when the airflow enters the Class B recesses 132 from the diffuser holes 120, the angle between the diffuser hole 120 and the recess depth direction of the Class B recesses 132 is consistent. Furthermore, by inclining the axes of the diffuser holes 120 relative to the thickness direction of the diffuser plate body 110 and setting the diffuser holes 120 on the inclined surface, space is provided for increasing the area of ​​each diffuser hole 120, thereby facilitating an increase in the overall airflow cross-sectional area of ​​the diffuser plate 100.

[0070] like Figures 3 to 7 As shown, optionally, the recessed surface of the recessed portion 130 is a spherical surface.

[0071] Choosing a spherical surface as the recessed surface of the recess 130 allows the airflow direction to gradually change as it flows through the recess 130, reducing energy loss. Furthermore, by setting the recessed surface of the recess 130 to the above shape, during the injection molding of the diffuser plate 100, the surface protrusion of the mold is a spherical protrusion, which not only lacks sharp corners, facilitating stable flow of the injection molding liquid between molds, but also allows for a smooth transition of the injection-molded material across the cross-section of the recess 130, thereby improving product quality.

[0072] Specifically, in this embodiment, the recess 130 can be approximately hemispherical, or the shape of the recess can be a local sphere with a depth less than the height of the hemisphere. Of course, in another implementation, it can also be half of an ellipsoid, regardless of whether the surface of the air diffuser plate 110 is perpendicular to the major or minor axis of the ellipsoid.

[0073] like Figures 3 to 6 As shown, optionally, the air diffuser 120 has a hole wall portion, which is smoothly connected to the recessed surface of the recessed portion 130.

[0074] By setting the orifice wall portion, the depth of the diffuser hole 120 can be appropriately controlled, thereby reducing the suddenness of airflow direction changes and helping to control noise. In addition, the smooth transition between the orifice wall portion and the recessed surface further helps to reduce the speed of airflow direction changes, making the airflow between the recessed portion 130, the diffuser hole 120 and the recessed portion 130 more stable.

[0075] Theoretically, two spheres intersect on a circular plane, and the edge of this circular plane is theoretically a sharp annular blade. If airflow passes through such a diffuser 120, although the smaller diameter section is very small, the flow area suddenly expands after passing through this edge, which may generate vortices. Passing through such a sharp annular blade may also increase noise. Therefore, in this embodiment, the hole wall portion can significantly reduce or even eliminate the noise and vortex phenomena caused by the annular blade.

[0076] The operating principle of this embodiment is as follows:

[0077] The recessed portion 130 on the windward side of the air diffuser plate 110 can be a Class A recessed portion 131, which serves as an air inlet cavity. The Class B recessed portion 132 on the other side of the air diffuser plate 110 serves as an air outlet cavity. When the air outlet from the indoor unit encounters the Class A protrusion of the air diffuser plate 110, it is directed by the protrusion into the adjacent Class A recessed portion 131. The airflow from the multiple protrusions converges in the air inlet cavity and merges with the airflow flowing directly towards the Class A recessed portion 131. The converged airflow disperses within the air inlet cavity and exits through the three diffuser holes 120 connected to it. Similarly, the air outlet cavity is also connected to multiple diffuser holes 120, with the airflow from each diffuser hole 120 actually entering from different air inlets. The airflow flowing into the air inlet cavity from the different diffuser holes 120 then converges again within the air inlet cavity.

[0078] With just one diffuser panel 100, a total of two rounds of dispersion and convergence can be generated: dispersion → convergence → dispersion → convergence. The airflow speed is gradually consumed in the multiple dispersion and convergence processes, thereby reducing the final airflow speed and giving users a zero-wind-feel effect.

[0079] Example 2:

[0080] Figure 8 This is a schematic diagram of the air dissipation component provided in Embodiment 2 of this utility model. Figure 9 This is a schematic diagram of the air dissipation component provided in Embodiment 2 of this utility model, viewed from another direction. Figure 10 This is a three-dimensional disassembled view of the air dispersing component provided in Embodiment 2 of this utility model. Figure 11 This is a three-dimensional disassembled view of the air diffuser assembly provided in Embodiment 2 of this utility model. Figures 8 to 9 As shown, the air diffuser assembly provided in Embodiment 2 of this utility model includes a first air diffuser plate 210 and a second air diffuser plate 220 that are stacked and fixedly connected. Both the first air diffuser plate 210 and the second air diffuser plate 220 are air diffuser plates 100 as described above. By providing the aforementioned air diffuser plate 100 in the air diffuser assembly, the air diffuser assembly accordingly possesses all the advantages of the aforementioned air diffuser plate 100, which will not be elaborated here.

[0081] It should be noted that in this embodiment, the multiple air diffuser panels 100 are stacked and fixedly connected. This does not mean that the multiple air diffuser panels 100 must be disassembled in a destructive manner. It simply means that each air diffuser panel 100 is relatively fixed when the air conditioner is running normally. In fact, the air diffuser panels 100 can be detachably connected.

[0082] Optionally, the first air diffuser 210 includes a base plate portion 212 and a limiting sidewall portion 211 disposed on the edge of the base plate portion 212. At least a portion of the base plate portion 212 forms an air diffuser body portion 110, and the edge of the second air diffuser 220 is limited by the limiting sidewall portion 211. By providing the limiting sidewall portion 211 on the edge of the first air diffuser 210, the second air diffuser 220 can be laterally limited, thereby preventing lateral movement between the second air diffuser 220 and the first air diffuser 210 during air conditioner operation. This not only improves the overall stability of the air diffuser assembly but also prevents changes in the positional correspondence between the air diffuser holes 120 on the first air diffuser 210 and the air diffuser holes 120 on the second air diffuser 220, thus avoiding any impact on the air diffuser assembly's air diffusion effect.

[0083] Specifically, in this embodiment, the first air diffuser 210 is approximately rectangular, and the second air diffuser 220 is also approximately rectangular. The lateral dimension of the first air diffuser 210 is larger than that of the second air diffuser 220. The lateral dimension refers to the dimension in the direction parallel to the surface of the first air diffuser 210 and the second air diffuser 220.

[0084] In this embodiment, the limiting sidewall portion 211 protrudes from the edge of the substrate portion 212 along the thickness direction of the substrate portion 212. The limiting sidewall portion 211 can extend continuously along the length direction of the corresponding edge. Of course, in other implementations, the limiting sidewall portion 211 may not extend continuously along the length direction of the edge; for example, it may be provided intermittently.

[0085] In this application, terms such as "up," "down," "left," "right," "front," and "back" that directly describe direction and orientation, when used to describe the composition of the air diffuser assembly, are based on the horizontal placement of the first air diffuser plate 210 and the second air diffuser plate 220, and are illustrated by the example of the first air diffuser plate 210 being located above the second air diffuser plate 220.

[0086] like Figures 10-11As shown, optionally, the substrate portion 212 is provided with a first magnetic attraction portion 213, and the second air diffuser plate 220 is provided with a second magnetic attraction portion 221. The first magnetic attraction portion 213 and the second magnetic attraction portion 221 are disposed opposite to each other and are attracted together. By providing the first magnetic attraction portion 213 and the second magnetic attraction portion 221 on the substrate portion 212 and the second air diffuser plate 220 respectively, the first air diffuser plate 210 and the second air diffuser plate 220 can be fixed by utilizing the mutual attraction of the first magnetic attraction portion 213 and the second magnetic attraction portion 221.

[0087] In this embodiment, the first magnetic attraction part 213 and the second magnetic attraction part 221 can be magnets or a combination of magnets and ferromagnetic materials, respectively. For example, the magnetic poles of the first magnetic attraction part 213 and the second magnetic attraction part 221 have the same direction of arrangement. Specifically, the lower end of the first magnetic attraction part 213 is the S pole, and the upper end of the first magnetic attraction part 213 is the N pole, while the upper end of the second magnetic attraction part 221 is the N pole and the lower end is the S pole. When the second air diffuser plate 220 is installed on the first air diffuser plate 210, the N pole at the upper end of the first magnetic attraction part 213 and the S pole at the lower end of the second magnetic attraction part 221 attract each other to fix the first magnetic attraction part 213 and the second magnetic attraction part 221. Of course, one of the first magnetic attraction part 213 and the second magnetic attraction part 221 can be a magnet, and the other can be an iron sheet or an iron pillar. The first magnetic attraction part 213 is fixed to the substrate part 212, and the second magnetic attraction part 221 is fixed to the second air diffuser plate 220.

[0088] In this embodiment, the first air diffuser plate 210 and the second air diffuser plate 220 are fixed by magnetic attraction. The first magnetic attraction part 213 and the second magnetic attraction part 221 can be respectively disposed at their edges, or they can also be disposed at their middle, thus fixing the middle portion as well. Furthermore, in the magnetic attraction fixing scheme, limiting sidewalls 211 are provided at all four edges of the roughly rectangular base plate portion 212 to laterally limit the second air diffuser plate 220.

[0089] Of course, in another implementation, the first air diffuser plate 210 and the second air diffuser plate 220 can be connected by a slot, that is, the second air diffuser plate 220 can be inserted into the slot formed by the limiting side wall portion 211 of the first air diffuser plate 210 along the length direction of the first air diffuser plate 210; or the first air diffuser plate 210 and the second air diffuser plate 220 can be connected by a latch.

[0090] Figure 12 for Figure 10 Enlarged views of parts A and B. Figure 13 for Figure 11 Enlarged views of parts C and D. Figure 14 This is a schematic diagram showing the correspondence between the air diffuser holes and the recessed portion in the air diffuser assembly provided in Embodiment 2. (See attached diagram.) Figures 12-14As shown, optionally, the recesses 130 on the opposite surfaces of adjacent diffusers 100 are staggered. This arrangement allows the cross-sectional area of ​​the passage area formed between the two recesses 130 on the opposite surfaces to be smaller than the opening of the recess 130. This cross-sectional area can be used to further throttle the airflow and also facilitate air dispersion.

[0091] like Figures 12-14 As shown, optionally, on the opposing surfaces of adjacent diffuser plates 100, a protrusion 140 located between a plurality of recesses 130 on one corresponds to a recess 130 on the other. With this arrangement, after the airflow passes through the diffuser holes 120 of one diffuser plate 100 and converges in the recess 130, the airflow can be dispersed again by the protrusion 140 of another diffuser plate 100. Thus, within the limited thickness range of the diffuser plate 100, the airflow can be dispersed more times to achieve a better zero-wind effect.

[0092] Specifically, with Figure 10 For example, Figure 10 The right half is the second air diffuser plate 220, and the left half is the first air diffuser plate 210. The second air diffuser plate 220 has two bottom recesses 130 in the first column from the left, and a second recess 130 in the second column from the left. On the second air diffuser plate 220, there is a recess 130 on the opposite side of the protrusion 140 between these three recesses 130. The recess 130 and the three recesses 130 form an air diffuser hole 120. This recess 130 corresponds to a protrusion 140 on the first air diffuser plate 210. This protrusion 140 is located between the two bottom recesses 130 in the left column of the first air diffuser plate 210 and the second recess 130 in the second column from the left, roughly forming a quasi-triangular shape with curved edges. Therefore, the airflow passing through the recess 130 will be dispersed by the protrusion 140, which is shaped like a quasi-triangular shape, and will be diverted to each recess 130 adjacent to the protrusion 140, and discharged through each air diffuser 120 of each recess 130.

[0093] like Figures 12-14As shown, optionally, on a pair of same-side surfaces of adjacent diffuser plates 100, a plurality of recesses 130 on one side are correspondingly arranged with a plurality of recesses 130 on the other side; on another pair of same-side surfaces of adjacent diffuser plates 100, a plurality of recesses 130 on one side are staggered with a plurality of recesses 130 on the other side. This arrangement allows airflow exiting from one diffuser hole 120 facing the recesses 130 of another diffuser plate 100 to exit from at least two diffuser holes 120 of the other diffuser plate 100. Furthermore, the airflow flowing through the diffuser holes 120 on the other diffuser plate 100 is not just airflow entering from one diffuser hole 120, but also airflow converging from multiple diffuser holes 120. Therefore, during the splitting and merging of airflow, the airflow velocity can be effectively consumed, thereby achieving a zero-wind-feel function.

[0094] Specifically, the following refers to Figure 14 For clarity, the circles in the diagram are divided into two sizes. The larger circle represents the opening edge of the recess 130 on the second diffuser plate 220, while the smaller circle represents the opening edge of the recess 130 on the first diffuser plate 210. Although the circles drawn in the diagram vary in size, the opening edges of the recesses 130 on each diffuser plate 100 can actually be the same size; they are drawn with different diameters for ease of distinction. Specifically, the light blue circle represents the opening edge of the recess 130 on the surface of the second diffuser plate 220 facing the first diffuser plate 210, while the red circle represents the opening edge of the second diffuser plate 220 facing away from the first diffuser plate 210. The dark blue circle represents the opening edge of the recess 130 on the surface of the first diffuser plate 210 facing the second diffuser plate 220, while the green circle represents the opening edge of the first diffuser plate 210 facing away from the second diffuser plate 220. Since this diagram is only intended to show the airflow direction between the various three-sealed holes, the air diffuser 120 has been simplified and represented only by an ellipse, without showing the wall thickness of the air diffuser 120. Specifically, the dashed ellipse represents the air diffuser 120 located on the second air diffuser plate 220, while the solid ellipse represents the air diffuser 120 located on the first air diffuser plate 210.

[0095] exist Figure 12In the diagram, the second air diffuser 220 has two recesses 130 at the bottom of the first column of illustrations from the left—the first recess 401 and the second recess 402; the second recess 130 from the top of the second column of illustrations from the left—the third recess 403; and a fourth recess 404 on the opposite side of the protrusion 140 between these three recesses on the second air diffuser 220. The fourth recess 404 and the three recesses 130 form air diffusers 120—the first air diffuser 301, the second air diffuser 302, and the third air diffuser 303. The first air diffuser 301 is formed by the first recess 401 and the fourth recess 404; the second air diffuser 302 is formed by the second recess 402 and the fourth recess 404; and the third air diffuser 303 is formed by the third recess 403 and the fourth recess 404. The fourth recess 404 corresponds to a protrusion 140 on the first air diffuser 210, which is the first protrusion 501. The first protrusion 501 is located between the two bottommost recesses 130 on the left side of the first air diffuser 210 diagram—the fifth recess 405 and the sixth recess 406—and between the second recess 130 from bottom to top in the second column of the diagram from the left—the seventh recess 407. However, there is no recess 130 corresponding to the first protrusion 501 on the other side of the first air diffuser 210. A second protrusion 502 is provided on the upper surface of the first air diffuser 210. The second protrusion 502 and the first protrusion 501 are arranged along the length of the first air diffuser 210. The second protrusion 502 is formed by a sixth recess 406, a seventh recess 407, and an eighth recess 408. The eighth recess 408 is the third recess 130 from bottom to top in the second column from the left in the diagram of the first air diffuser 210, and the ninth recess 409 corresponds to the second protrusion 502. In addition, the bottommost recess 130 in the second column from the left in the diagram of the upper surface of the first air diffuser 210 is the tenth recess 410. The protrusion 140 between the tenth recess 410, the fifth recess 405, and the seventh recess 407 is the third protrusion 503, and the eleventh recess 411 corresponds to the third protrusion 503 on the lower surface of the first air diffuser 210. A fourth ventilation hole 304 is formed between the eleventh recess 411 and the fifth recess 405, and a fifth ventilation hole 305 is formed between the eleventh recess 411 and the seventh recess 407. A sixth ventilation hole 306 is formed between the ninth recess 409 and the sixth recess 406, and a seventh ventilation hole 307 is formed between the ninth recess 409 and the seventh recess 407. And as... Figure 13 As shown in the diagram, the second recess 130 above the first column from the left in the first air diffuser plate 210 is the twelfth recess 412. An eighth air diffuser hole 308 is formed between the twelfth recess 412 and the fifth recess 405, and a ninth air diffuser hole 309 is formed between the twelfth recess 412 and the sixth recess 406.

[0096] exist Figure 14 As can be seen, the airflow discharged from the first diffuser hole 301 can enter the eighth diffuser hole 308 and the fourth diffuser hole 304; the airflow discharged from the second diffuser hole 302 can enter the sixth diffuser hole 306 and the ninth diffuser hole 309; and the airflow discharged from the third diffuser hole 303 can enter the fifth diffuser hole 305 and the seventh diffuser hole 307. Of course, the airflow discharged from the first diffuser hole 301 does not absolutely enter only the eighth diffuser hole 308 and the fourth diffuser hole 304. Since the eighth diffuser hole 308 and the fourth diffuser hole 304 are relatively close to the first diffuser hole 301 and the distance is basically the same, and the shape of the object flowing through them is also the same, so it mainly enters these two diffuser holes 120. Of course, a small part may also flow through the thirteenth diffuser hole 313 in the fifth recess 405. The thirteenth air diffuser 313 is formed by the fifth recess 405 and the thirteenth recess 413, and the thirteenth recess 413 is part of the first air diffuser plate 210. Figure 13 The first recess 130 above the first column from the left is shown; the airflow discharged from the second air diffuser 302 and the third air diffuser 303 is similar and will not be described in detail.

[0097] The airflow flowing into the fourth diffuser hole 304 includes the airflow flowing out of the first diffuser hole 301 and the tenth diffuser hole 310, wherein the tenth diffuser hole 310 is formed by the first recess 401 and the fourteenth recess 414, and the fourteenth recess 414 is the second diffuser plate 220. Figure 13 The topmost recess 130 in the first column from the left is shown. The airflow flowing into the fifth diffuser 305 includes the airflow flowing out of the third diffuser 303 and the twelfth diffuser 312. The twelfth diffuser 312 is formed by the third recess 403 and the fifteenth recess 415. The fifteenth recess 415 is part of the second diffuser plate 220. Figure 13 The second column from the left shows the top recess 130. The airflow flowing into the sixth diffuser 306 includes the airflow exiting from the second diffuser 302 and the eleventh diffuser 311. The eleventh diffuser 311 is formed by the second recess 402 and the sixteenth recess 416. The sixteenth recess 416 is part of the second diffuser plate 220. Figure 13The third recess 130 from the top of the first column from the left is shown. Of course, taking the fifth diffuser 305 as an example, the airflow entering the fifth diffuser 305 is not absolutely limited to the airflow from the third diffuser 303 and the twelfth diffuser 312. It's just that the third and twelfth diffusers 303 and 312 are relatively close to the fifth diffuser 305 and the objects they pass through have similar shapes. Therefore, it's mainly the airflow from these two diffusers 120 that enters the fifth diffuser 305. Of course, a small portion of the airflow may also exit from the fourteenth diffuser 314, which is formed by the third recess 403 and the seventeenth recess 417. The seventeenth recess 417 is the second diffuser plate 220. Figure 13 The second indentation from the top of the second column from the left is shown as 130.

[0098] Therefore, the airflow exiting from one of the airflow holes 120 of the second airflow diffuser 220 can flow through at least two airflow holes 120 of the first airflow diffuser 210. And the airflow flowing into the airflow holes 120 of the first airflow diffuser 210 can include at least the airflow exiting from at least two airflow holes 120 on the second airflow diffuser 220.

[0099] Of course, in another implementation, the air diffuser body 110 of the first air diffuser 210 and the air diffuser body 110 of the second air diffuser 220 can be configured to correspond completely, that is, the recessed portion 130 on the windward side of the first air diffuser 210 corresponds to the recessed portion 130 on the windward side of the second air diffuser 220, and the recessed portion 130 on the leeward side of the first air diffuser body 110 corresponds to the recessed portion 130 on the leeward side of the second air diffuser 220. This situation is as follows: Figure 15 As shown, in a partial cross-section, the distribution of the air vents 120, the recesses 130, and the protrusions 140 of the two air vents 100 is exactly the same.

[0100] Furthermore, a separation through hole can be provided in the recess 130 of the first air diffuser 210 corresponding to the partial protrusion 140, extending along the thickness direction of the first air diffuser 210, so that when the first air diffuser 210 and the second air diffuser 220 are separated, a rod-shaped tool can be inserted into the separation through hole to overcome the attraction of the first magnetic attraction part 213 and the second magnetic attraction part 221, and push the second air diffuser 220 out of the first air diffuser 210.

[0101] Additionally, the second air diffuser 220 can be disposed on the windward side of the first air diffuser 210. A rotating shaft 222 can be mounted on the second air diffuser 220 to allow the air diffuser assembly to rotate relative to the air conditioner body, driven by a corresponding driving component. The rotating shaft 222 can directly house the driven component or a drive structure of a transmission device connected to the driving component; for example, it can have gear teeth. Alternatively, the rotating shaft 222 can simply serve a pivotal positioning function, with the driving component separately connected to a transmission structure such as a linkage mechanism to drive the air diffuser assembly.

[0102] Example 3:

[0103] Figure 16 This is a schematic diagram of the structure of the wall-mounted indoor unit of the air conditioner provided in Embodiment 3 of this utility model. Figure 17 This is a schematic diagram of the structure of a wall-mounted indoor unit in an air conditioner, as provided in Embodiment 3 of this utility model. Figure 16 and Figure 17 As shown, Embodiment 3 also provides an air conditioner, including an indoor unit and an outdoor unit. The indoor unit has a diffuser 100 as described above installed at its air outlet. The indoor and outdoor units are connected via a refrigerant connection pipe. By installing the diffuser 100 in the air conditioner, it possesses all the advantages of the diffuser 100, which will not be elaborated further here.

[0104] Specifically, such as Figure 17 As shown, taking a wall-mounted air conditioner indoor unit as an example, in this embodiment, the air diffuser 100 can be fixedly installed at the front air outlet and the lower air outlet of the air conditioner indoor unit to disperse the airflow from the air conditioner indoor unit, giving the user a feeling of zero wind. If the air diffuser assembly has multiple air diffusers 100, the air diffuser 100 located downstream in the airflow direction can be fixed to the main body of the wall-mounted air conditioner indoor unit, for example, by means of clips, magnets, or screws.

[0105] like Figures 18-20As shown, optionally, when the air conditioner is in zero-wind mode, the first air diffuser 210 is located on the leeward side of the second air diffuser 220. With this configuration, the direction of the airflow is such that the second air diffuser 220 is closer to the first air diffuser 210, and the overall velocity of the airflow within the diffuser assembly decreases. Therefore, the airflow force on the second air diffuser 220 is greater than the airflow force on the first air diffuser 210. In other words, the force exerted by the airflow on each air diffuser 100 is such that the force on the second air diffuser 220 near the first air diffuser 210 is greater than the force on the first air diffuser 210 away from the second air diffuser 220. If the diffuser assembly is fixedly installed in the air conditioner body of the indoor unit, fixing the first air diffuser 210 will also fix the second air diffuser 220. If the air diffuser assembly is rotatably installed inside the air conditioner body, the rotating shaft 222 of the air diffuser assembly can be set on the second air diffuser plate 220 to avoid setting it on the first air diffuser plate 210 and interfering with the connection between the first air diffuser plate 210 and the second air diffuser plate 220.

[0106] Specifically, taking a wall-mounted air conditioner indoor unit as an example, in this embodiment, the air diffusion assembly including the first air diffuser 210 and the second air diffuser 220 can be used as upper and lower sweeping blades set at the air outlet of the air conditioner. Specifically, the wall-mounted air conditioner indoor unit includes a housing, with an air inlet 710 at the top of the housing, an indoor heat exchanger 720 inside the housing, and an indoor fan below the indoor heat exchanger 720. Driven by the indoor fan, air exchanges heat with the indoor heat exchanger 720 and flows out from the air outlet duct. A front lower air outlet 730 is provided at the lower part of the front surface of the air conditioner, and a front lower air diffuser 740 is correspondingly provided. The rotation axis of the front lower air diffuser 740 is located at the rear side of its lower part. A lower front air outlet 750 is provided at the front of the lower surface of the air conditioner, and a lower front air diffuser 760 is correspondingly provided. The rotation axis of the lower front air diffuser 760 is located at the upper rear part of its rear part.

[0107] If the opening of the lower front air outlet 730 is in a vertical plane and the lower front diffuser 740 is in a vertical state, and if the lower front air outlet 730 still has air coming out, the airflow will pass through the lower front diffuser 740, generating a zero-wind airflow that can change the indoor temperature but will not produce a noticeable draft. If the lower front air outlet 750 is in a horizontal plane and the lower front diffuser 760 is in a horizontal state, and if the lower front air outlet 750 still has air coming out, the airflow will pass through the lower front diffuser 760, generating a zero-wind airflow that can change the indoor temperature but will not produce a noticeable draft.

[0108] Figure 19 and Figure 20The diagram shows the air conditioner in a zero-airflow state. The front lower diffuser 740 is in a vertical position and blocks the front lower air outlet 730, while the lower front diffuser 760 is in a horizontal position and blocks the lower front air outlet 750. Therefore, the airflow discharged from the front lower air outlet 730 and the lower front air outlet 750 are both zero-airflow airflow. Figure 21 The diagram shows the air conditioner in cooling mode. The front lower diffuser 740 has a small angle with the horizontal plane, for example, 2° to 10°, allowing the front lower air outlet 730 to open to a greater extent, with the airflow being discharged generally forward from the outlet 730. In the diagram, the lower front diffuser 760 has an angle of 20° to 40° with the horizontal plane, allowing the airflow to be discharged from the lower front air outlet 750 in a slightly downward direction. Therefore, the cold air discharged from both the front lower air outlet 730 and the lower front air outlet 750 has a small angle with the ground, which can better cool higher areas of the room, creating a more uniform cooling effect. Although both the lower front diffuser 740 and the lower front diffuser 760 are provided with diffuser holes 120, theoretically airflow can pass through the diffuser holes 120. However, since both the lower front diffuser 740 and the lower front diffuser 760 open their respective air outlets, the airflow is mainly or even almost entirely discharged from the corresponding air outlets, and the amount discharged from the diffuser 100 is negligible. Figure 20 The diagram shows the air conditioner in heating mode, with the lower front diffuser 740 in a vertical position. In the diagram, the lower front diffuser 760 forms an angle of 75°–85° with the horizontal plane, allowing airflow to primarily exit downwards from the lower front air outlet 750. Since the lower front air outlet 750 is open, although theoretically airflow can pass through the diffuser holes 120 of the lower front diffuser 740, the resistance to airflow exiting through the lower front air outlet 750 is far less than the resistance through the lower front diffuser 740. The proportion of zero-wind-feel airflow passing through the diffuser holes 120 from the lower front diffuser 740 is almost negligible; the airflow mainly, or even almost entirely, exits from the lower front air outlet 750. Therefore, in this state, hot air is exited from the lower front air outlet 750, heating areas with lower ceiling heights in the room to improve the uniformity of indoor temperature distribution.

[0109] Of course, in the above illustrations, both the front lower air outlet 730 and the lower front air outlet 750 only show one air diffuser component in their width direction, not in the left-right direction of the wall-mounted air conditioner indoor unit. In reality, in another implementation, multiple air diffusers are arranged along the width direction of the front lower air outlet 730 and the lower front air outlet 750. The width of the air diffusers is used to achieve the air guiding function.

[0110] Furthermore, if the air diffuser assembly is rotatably installed inside the air conditioner unit, the rotating shaft 222 of the air diffuser assembly can be positioned on the second air diffuser plate 220 to avoid interfering with the connection between the first air diffuser plate 210 and the second air diffuser plate 220 if positioned on the first air diffuser plate 210. Specifically, if the direction in which the second air diffuser plate 220 is installed on the first air diffuser plate 210 is the length direction of the air diffuser plate 100, for example, by inserting along this direction, placing the rotating shaft 222 on the first air diffuser plate 210 would interfere with the insertion of the second air diffuser plate 220. If the direction in which the second air diffuser plate 220 is installed on the first air diffuser plate 210 is the thickness direction of the air diffuser plate 100, placing the rotating shaft 222 on the first air diffuser plate 210 would result in a larger thickness in the area near the rotating shaft 222 on the first air diffuser plate 210, leading to uneven thickness of the injection molded part and thus reducing the quality of the injection molded product. To ensure that the thickness is close, the area near the pivot 222 needs to be set as a recess 130, which will also disrupt the airflow on the windward surface of the diffuser 100 and may increase the noise of the indoor unit of the air conditioner.

[0111] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims. Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0112] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A diffuser plate (100), characterized in that, The device includes a diffuser plate (110) having a plurality of diffuser holes (120). Each diffuser hole (120) is formed by a Class A recess (131) and a Class B recess (132) connected together. The Class A recess (131) is recessed from a first surface of the diffuser plate (110), and the Class B recess (132) is recessed from a second surface of the diffuser plate (110). The first surface and the second surface are surfaces opposite to each other in the thickness direction of the diffuser plate (110). One Class A recess (131) connects to a plurality of Class B recesses (132) to form a plurality of diffuser holes (120), and / or one Class B recess (132) connects to a plurality of Class A recesses (131) to form a plurality of diffuser holes (120).

2. The air diffuser (100) according to claim 1, characterized in that, A type A protrusion (141) is formed between a plurality of the type A recesses (131), and in the thickness direction of the air diffuser body (110), the type B recesses (132) are provided corresponding to the type A protrusions (141).

3. The air diffuser plate (100) according to claim 2, characterized in that, A type A protrusion (141) is formed between the three type A recesses (131); the type B recess (132) corresponding to the type A protrusion (141) is connected to the three type A recesses (131) surrounding the type A protrusion (141).

4. The air diffuser plate (100) according to claim 3, characterized in that, The plurality of the Class A recesses (131) are evenly distributed, and / or the plurality of the Class B recesses (132) are evenly distributed.

5. The air diffuser plate (100) according to any one of claims 1-4, characterized in that, The recessed surface of the recessed portion (130) is spherical.

6. The air diffuser (100) according to claim 5, characterized in that, The ventilation hole (120) has a hole wall portion, which is smoothly connected to the recessed surface of the recessed portion (130).

7. An air conditioner, characterized in that, The air conditioner includes an indoor unit and an outdoor unit. The indoor unit is provided with a diffuser (100) of any one of claims 1-6 at its air outlet. The indoor unit and the outdoor unit are connected by a refrigerant connection pipe.

8. A wind dissipation component, characterized in that, It includes a first air diffuser plate (210) and a second air diffuser plate (220) that are stacked and fixedly connected, wherein the first air diffuser plate (210) and the second air diffuser plate (220) are both air diffuser plates (100) of any one of claims 1-6.

9. The air diffuser assembly according to claim 8, characterized in that, The first air diffuser (210) includes a base plate portion (212) and a limiting sidewall portion (211) disposed on the edge of the base plate portion (212). At least a portion of the base plate portion (212) forms the air diffuser body portion (110), and the edge of the second air diffuser (220) is limited by the limiting sidewall portion (211).

10. An air conditioner, characterized in that, The air conditioner includes an indoor unit and an outdoor unit. The indoor unit is provided with a diffuser assembly as described in claim 8 or 9 at its air outlet. The indoor unit and the outdoor unit are connected by a refrigerant connection pipe. When the air conditioner is in zero-wind mode, the first diffuser plate (210) is located on the leeward side of the second diffuser plate (220).

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