Air guide plate structure, air conditioner indoor unit and air conditioner

Abstract

The present invention provides an air guide plate structure, an air conditioner indoor unit and an air conditioner. The air guide plate structure comprises: a plate body, the plate body is rotatably arranged at an air outlet, and the extension direction of the plate body is parallel to or the same as the extension direction of the rotation axis of the plate body; at least one protrusion, at least one protrusion is arranged at intervals on the inner wall surface of the plate body along the extension direction of the plate body, so that the air flow out of the air outlet is blown out along a predetermined trajectory under the guiding effect of the protrusion. The air guide plate structure solves the problem that the air guide plate of the air conditioner in the prior art has a poor cooling effect when adopting an air outlet method to avoid the cold air blowing directly on people.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air guide plate structure, an air conditioner indoor unit and an air conditioner. Background Art

[0002] As the air conditioning industry continues to mature, users are paying more and more attention to the comfort function of air conditioning. When users use air conditioning, there is a problem of cold air blowing directly. Long-term cold air blowing directly can easily cause human discomfort, which in turn affects people's health.

[0003] Existing air conditioner products usually have an air guide assembly (the air guide assembly includes an air guide plate and a wind sweeping blade) disposed at the air outlet to adjust the air outlet direction of the air conditioner.

[0004] Among them, the existing way of adjusting the air outlet direction of the air guide plate is: in order to avoid the problem of cold air blowing directly on people, the air guide plate can usually only be set to be tilted upward so that the cold air is blown out tilted upward; however, when rapid cooling is required, this air outlet method will affect the cooling effect.

[0005] It can be seen that the existing air guide plate has the problem of poor cooling effect when adopting the air outlet mode of preventing cold air from blowing directly on people. Summary of the invention

[0006] The main purpose of the present invention is to provide an air guide plate structure, an air conditioner indoor unit and an air conditioner to solve the problem that the air guide plate of the air conditioner in the prior art has a poor cooling effect when adopting an air outlet mode that prevents cold air from blowing directly on people.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an air guide plate structure, which includes: a plate body, which is rotatably arranged at the air outlet, and the extension direction of the plate body is parallel to or the same as the extension direction of the rotation axis of the plate body; at least one protrusion, at least one protrusion is arranged on the inner wall surface of the plate body at intervals along the extension direction of the plate body, so that the airflow flowing out of the air outlet is blown out along a predetermined trajectory under the guiding action of the protrusion.

[0008] Furthermore, the air guide plate structure is located on the outside of the cross-flow fan, and the cross-flow fan includes a plurality of fan segments arranged in sequence along its axial direction; the plate body includes a plurality of plate segments arranged in sequence along its extension direction, and the plurality of plate segments are used to be arranged one-to-one with the plurality of fan segments; and each plate segment is provided with at least one protrusion.

[0009] Furthermore, the maximum height of each protrusion relative to the inner wall of the plate body is H, and the value range of the maximum height H is: H 2 ≤H≤H 1 , where H 1 =5πD / (16Z),H 2= 3πD / (16Z); D is the outer diameter of the cross-flow fan, and Z is the number of blades of the cross-flow fan.

[0010] Further, the width direction of each convex portion is parallel to the extending direction of the plate body; the maximum width of each convex portion is A, and the value range of the maximum width A is: A ≤ (L - Nd) / N; where L is the length of the plate body along its extending direction, N is the number of convex portions on the plate body, and d is the minimum horizontal distance between two adjacent convex portions; and / or, the length direction of each convex portion is perpendicular to the extending direction of the plate body; the maximum length of each convex portion is Y 2 , the width of the plate body is Y 1 , the width direction of the plate body is perpendicular to its extending direction; where Y 2 ≤ Y 1 .

[0011] Further, the maximum heights of any two adjacent convex portions are different; and / or, along the direction perpendicular to the extending direction of the plate body, each convex portion includes a first convex segment, a second convex segment, and a third convex segment connected in sequence, and the first convex segment is located on the side of the second convex segment close to the cross-flow fan; from the end of the first convex segment far from the second convex segment to the end close to the second convex segment, the height of the first convex segment gradually increases; from the end of the third convex segment close to the second convex segment to the end far from the second convex segment, the height of the third convex segment gradually decreases.

[0012] Further, the top surface of the first convex segment intersects with the inner wall surface of the plate body; and / or, from the end of the second convex segment close to the first convex segment to the end far from the first convex segment, the height of the second convex segment gradually increases; the increasing amplitude of the height of the second convex segment is less than the increasing amplitude of the height of the first convex segment; and / or, along the direction perpendicular to the extending direction of the plate body, the length of the first convex segment is greater than the length of the second convex segment, and the length of the second convex segment is greater than the length of the third convex segment; and / or, along the direction perpendicular to the extending direction of the plate body, the end surface of the end of the convex portion far from the cross-flow fan is recessed inward.

[0013] Further, the outer perimeter of the longitudinal section of each convex portion is a predetermined curve, and the predetermined curve includes a predetermined arc segment that passes through the highest point of the convex portion; the longitudinal section is perpendicular to the extending direction of the plate body; the radius of the predetermined arc segment is R, R < D / n and R > 1.5H; where D is the outer diameter of the cross-flow fan, the value range of n is 15 to 30, and H is the maximum height of the convex portion.

[0014] Further, a groove portion is provided on the inner wall surface of the plate body, and a groove portion is provided between any two adjacent convex portions; the maximum groove width of each groove portion is equal to the minimum horizontal distance between the corresponding two adjacent convex portions, and the width direction of the groove portion is the same as the extending direction of the plate body.

[0015] Furthermore, the minimum horizontal spacing between two adjacent protrusions ranges from greater than or equal to 2 mm to less than or equal to 3.5 mm.

[0016] Further, any three adjacent protrusions are sequentially the first protrusion, the second protrusion and the third protrusion, and the maximum height of the first protrusion and the maximum height of the third protrusion are both greater than or less than the maximum height of the second protrusion.

[0017] Furthermore, the maximum height points of two adjacent protrusions are located on a predetermined straight line, and the predetermined straight line is set at an angle β with the horizontal plane, and the value range of β is less than or equal to 30 degrees.

[0018] According to another aspect of the present invention, an air conditioner indoor unit is provided, comprising: a casing and the above-mentioned air guide plate structure, wherein an air outlet is arranged on the casing.

[0019] According to another aspect of the present invention, there is provided an air conditioner, comprising the above-mentioned air conditioner indoor unit.

[0020] Applying the technical solution of the present invention, the air guide plate structure includes a plate body and at least one protrusion; the plate body is rotatably arranged at the air outlet, and the extension direction of the plate body is parallel to or the same as the extension direction of the rotation axis of the plate body; at least one protrusion is arranged on the inner wall surface of the plate body at intervals along the extension direction of the plate body, so that the airflow flowing out of the air outlet is blown out along a predetermined trajectory under the guiding action of the protrusion.

[0021] At least one protrusion is provided on the plate body to divide the airflow passing through the plate body into multiple airflow segments along the extension direction of the plate body (i.e., airflow separation is generated). The airflow segment passing through the protrusion and the airflow segment passing through the inner wall of the plate body have different flow directions. The airflow segment passing through the protrusion flows along the top surface of the protrusion, and the airflow segment passing through the inner wall of the plate body flows along its inner wall. Compared with the existing air guide plate structure, the air guide plate structure of the present application improves the direction of the airflow delivered from the air outlet. On the one hand, when the air outlet blows out cold air and the plate body is tilted downward, rapid cooling can be achieved and the cooling effect can be improved. At this time, due to the provision of the protrusion, the flow direction of part of the airflow segment of the original airflow is changed, so that the airflow segment passing through the protrusion is tilted downward to blow out the inclined The angle becomes smaller or the air flow section passing through the protrusion is blown out in a horizontal direction or the air flow section passing through the protrusion is blown out obliquely upward (the blowing direction of the air flow section passing through the protrusion is related to the height of the protrusion and the top surface shape of the protrusion), thereby changing the direction of part of the air section of the cold air blown out from the air outlet, which can avoid or reduce the phenomenon of cold air blowing directly on people when the plate body is tilted downward, and solves the problem of poor cooling effect of the existing air guide plate when the air outlet method of avoiding cold air blowing directly on people is adopted; on the other hand, in the direction perpendicular to the extension direction of the plate body, the air flow blown out from the air outlet has an increased flow range after passing through the air guide plate structure of the present application, that is, the air outlet range is increased, achieving an airflow disturbance effect, which is beneficial to improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 A schematic structural diagram showing an air guide plate structure of an indoor unit of an air conditioner according to the present invention arranged at an air outlet;

[0024] Figure 2 A schematic structural diagram of an air guide plate structure and a cross-flow fan of an indoor unit of an air conditioner according to the present invention is shown;

[0025] Figure 3 A side view showing a first viewing angle of a plurality of protrusions of the air deflector structure according to the present invention arranged on the plate body;

[0026] Figure 4 Shows Figure 3 A side view from a second perspective in which a plurality of raised portions of the air guide plate structure are arranged on the plate body;

[0027] Figure 5 A schematic structural diagram showing a first viewing angle of a raised portion of an air guide plate structure according to the present invention is shown;

[0028] Figure 6 Shows Figure 5 A structural schematic diagram of a convex portion of the air guide plate structure from a second perspective;

[0029] Figure 7 Shows Figure 5 A top view of the raised portion of the air guide plate structure.

[0030] The above drawings include the following reference numerals:

[0031] 10. Plate body; 20. Raised portion; 21. First raised section; 22. Second raised section; 23. Third raised section; 30. Crossflow fan; 31. Leaf blade; 32. Support ring; 40. Casing; 41. Air outlet. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] The present invention provides a wind deflector structure, please refer to Figures 1 to 7 The air guide plate structure includes a plate body 10 and at least one protrusion 20. The plate body 10 is rotatably arranged at the air outlet 41. The extension direction of the plate body 10 is parallel to or the same as the extension direction of the rotation axis of the plate body 10. At least one protrusion 20 is arranged at intervals on the inner wall surface of the plate body 10 along the extension direction of the plate body 10, so that the airflow flowing out of the air outlet 41 is blown out along a predetermined trajectory under the guiding effect of the protrusion 20.

[0036] In the air guide plate structure of the present invention, at least one protrusion 20 is provided on the plate body 10 to divide the air flow passing through the plate body 10 into multiple air flow segments along the extension direction of the plate body 10 (i.e., air flow separation is generated). The air flow segment passing through the protrusion 20 and the air flow segment passing through the inner wall of the plate body 10 have different flow directions. The air flow segment passing through the protrusion 20 flows along the top surface of the protrusion 20, and the air flow segment passing through the inner wall of the plate body 10 flows along its inner wall. Compared with the existing air guide plate structure, the air guide plate structure of the present application improves the direction of the air flow delivered from the air outlet 41. On the one hand, when the air outlet 41 blows out cold air and the plate body 10 is tilted downward, rapid cooling can be achieved and the cooling effect can be improved. At this time, due to the provision of the protrusion 20, the flow direction of part of the air flow segment of the original air flow is changed, so that the air passing through the protrusion 20 The inclination angle of the flow segment blowing downward is reduced, or the air flow segment passing through the protrusion 20 is blown out in a horizontal direction, or the air flow segment passing through the protrusion 20 is blown out upward (the blowing direction of the air flow segment passing through the protrusion 20 is related to the height of the protrusion 20 and the top surface shape of the protrusion 20), thereby changing the direction of part of the air segment of the cold air blown out from the air outlet 41, which can avoid or reduce the phenomenon of cold air blowing directly on people when the plate body 10 is tilted downward, and solves the problem of poor cooling effect of the existing air guide plate when adopting an air outlet method that avoids cold air blowing directly on people; on the other hand, in the direction perpendicular to the extension direction of the plate body 10, the air flow blown out from the air outlet 41 increases the flow range after passing through the air guide plate structure of the present application, that is, increases the air outlet range, achieves the airflow disturbance effect, which is beneficial to improving the cooling effect.

[0037] It should be noted that, along the protruding direction of the protruding portion 20 , the top surface of the protruding portion 20 is the surface of the protruding portion 20 away from the plate body 10 .

[0038] It should be noted that the air outlet 41 is a strip-shaped opening, and the extension direction of the air outlet 41 is parallel to the extension direction of the plate body 10 .

[0039] It should be noted that, since the airflow section passing through the protrusion 20 and the airflow section passing through the inner wall of the plate body 10 have different flow directions, the pressure pulsation trends of the airflow section passing through the protrusion 20 and the airflow section passing through the inner wall of the plate body 10 are different.

[0040] In this embodiment, the air guide plate structure is located on the outside of the crossflow fan 30, and the crossflow fan 30 includes a plurality of fan segments arranged in sequence along its axial direction; the plate body 10 includes a plurality of plate segments arranged in sequence along its extension direction, and the plurality of plate segments are used to be arranged in one-to-one correspondence with the plurality of fan segments, and each plate segment is located on the outside of the corresponding fan segment; each plate segment is provided with at least one protrusion 20; that is, the plate body 10 is provided with a plurality of protrusions 20, and the plurality of protrusions 20 are arranged at intervals along the extension direction of the plate body 10; wherein the axial direction of the crossflow fan 30 is parallel to the extension direction of the plate body 10.

[0041] It should be noted that since there are multiple protrusions 20, the air flow segment passing through two adjacent protrusions 20 flows along the inner wall surface of the corresponding plate segment; by providing multiple protrusions 20 to change the flow direction of multiple air flow segments, the direction of the cold air blown out from the air outlet 41 is changed to a greater extent in the extension direction of the plate body 10.

[0042] It should be noted that when the heights of the multiple protrusions 20 are different and / or the top surface shapes of the multiple protrusions 20 are different, the flow directions of the air flow sections passing through the multiple protrusions 20 are different, so the pressure pulsation trends of the air flow sections passing through the multiple protrusions 20 are also different.

[0043] Specifically, the cross-flow fan 30 is columnar, and multiple blades of the cross-flow fan 30 are rotatably arranged around its central axis, and the central axis of the cross-flow fan 30 is parallel to the rotation axis of the plate body 10; each blade is strip-shaped, and the extension direction of each blade is parallel to the extension direction of the central axis of the cross-flow fan 30.

[0044] Specifically, the cross-flow fan 30 also includes a plurality of blade sill units, which are arranged in sequence along the extension direction of the central axis of the cross-flow fan 30. Each blade sill unit includes a plurality of blade sills 31 arranged at intervals around the central axis of the cross-flow fan 30. The plurality of blade sills 31 of each blade sill unit are all located on the outside of the plurality of blades, so that the airflow generated when the plurality of blades rotates flows out through the gap between two adjacent blade sills 31 of each blade sill unit; each blade sill 31 is strip-shaped, and the extension direction of each blade sill 31 is parallel to the extension direction of the central axis of the cross-flow fan 30.

[0045] Specifically, the cross-flow fan 30 also includes a support ring 32, and a support ring 32 is arranged between any two adjacent leaf sill units, that is, there is at least one support ring 32, and the multiple leaf sills 31 of each leaf sill unit are connected to the corresponding support ring 32; the central axis of the support ring 32 coincides with the central axis of the cross-flow fan 30.

[0046] Specifically, the crossflow blower 30 is divided into a plurality of blower sections by at least one supporting ring 32 .

[0047] In this embodiment, the maximum heights of any two adjacent protrusions 20 are different, so as to further increase the flow range of the airflow passing through the air guide plate structure of the present application in a direction perpendicular to the extension direction of the plate body 10 .

[0048] In this embodiment, if Figure 5 and Figure 6As shown, along the direction perpendicular to the extension direction of the plate body 10, each raised portion 20 includes a first raised segment 21, a second raised segment 22 and a third raised segment 23 connected in sequence, the first raised segment 21 is located on the side of the second raised segment 22 close to the cross-flow fan 30, that is, the top surface of the first raised segment 21 is the windward surface, and the airflow blown out from the air outlet 41 flows along the top surface of the first raised segment 21; from the end of the first raised segment 21 away from the second raised segment 22 to the end close to the second raised segment 22, the height of the first raised segment 21 gradually increases; from the end of the third raised segment 23 close to the second raised segment 22 to the end away from the second raised segment 22, the height of the third raised segment 23 gradually decreases.

[0049] Specifically, the top surface of the first raised section 21 intersects with the inner wall surface of the plate body 10 , so that the top surface of the first raised section 21 and the plate body 10 transition smoothly, thereby allowing the airflow to flow more smoothly to the top surface of the first raised section 21 .

[0050] Specifically, the height of the second raised section 22 gradually increases from one end of the second raised section 22 close to the first raised section 21 to the end thereof far from the first raised section 21, that is, the airflow passing through the top surface of the first raised section 21 will continue to flow along the top surface of the second raised section 22; the increase in the height of the second raised section 22 is smaller than the increase in the height of the first raised section 21; that is, the first raised section 21 is an airflow climbing section, and the second raised section 22 is an airflow diversion section.

[0051] Specifically, along the direction perpendicular to the extension direction of the plate body 10, the length of the first raised section 21 is greater than the length of the second raised section 22, and the length of the second raised section 22 is greater than the length of the third raised section 23. This structural setting is conducive to allowing the airflow passing through the top surface of the second raised section 22 to flow directly into the environment. In particular, when the air outlet 41 blows out cold air, if the length of the third raised section 23 is too long, the airflow passing through the top surface of the second raised section 22 is at risk of falling again to the third raised section 23, and then there is a risk of the cold air sinking.

[0052] Specifically, along the direction perpendicular to the extension direction of the plate body 10, the end surface of the two ends of the raised portion 20 that is away from the cross-flow fan 30 is recessed inward, and the end surface of the two ends of the raised portion 20 that is away from the cross-flow fan 30 is the top surface of the third raised segment 23. This structural setting is also intended to allow the airflow passing through the top surface of the second raised segment 22 to flow directly into the environment, and to avoid the risk of cold air sinking when the air outlet 41 blows out cold air.

[0053] In this embodiment, the maximum height of each protrusion 20 relative to the inner wall surface of the plate body 10 is H, and the value range of the maximum height H is: H 2 ≤H≤H 1 , where H 1= 5πD / (16Z), H 2 = 3πD / (16Z); D is the outer diameter of the cross-flow fan 30, and Z is the number of blades of the cross-flow fan 30; πD / Z is the circumferential pitch between two adjacent blades of the cross-flow fan 30.

[0054] It should be noted that the height of the convex portion 20 refers to the protruding height of the convex portion 20, and the protruding height direction of the convex portion 20 is perpendicular to the inner wall surface of the plate body 10.

[0055] As Figure 4 shown, the value of the maximum height H of at least one convex portion 20 among the multiple convex portions 20 is H 1 , the value of the maximum height H of at least one convex portion 20 among the multiple convex portions 20 is H 2 .

[0056] In this embodiment, the width direction of each convex portion 20 is parallel to the extending direction of the plate body 10; the maximum width of each convex portion 20 is A, and the value range of the maximum width A is: A ≤ (L - Nd) / N; where L is the length of the plate body 10 along its extending direction, N is the number of convex portions 20 on the plate body 10, and d is the minimum horizontal distance between two adjacent convex portions 20.

[0057] In this embodiment, the length direction of each convex portion 20 is perpendicular to the extending direction of the plate body 10; the maximum length of each convex portion 20 is Y 2 , the width of the plate body 10 is Y 1 , the width direction of the plate body 10 is perpendicular to its extending direction; where Y 2 ≤ Y 1 .

[0058] In this embodiment, the outer perimeter of the longitudinal section of each convex portion 20 is a predetermined curve, and the predetermined curve includes a predetermined arc segment that passes through the highest point of the convex portion 20; here, the longitudinal section of the convex portion 20 is perpendicular to the extending direction of the plate body 10; the radius of the predetermined arc segment is R, R < D / n and R > 1.5H; where D is the outer diameter of the cross-flow fan 30, the value range of n is from 15 to 30, and H is the maximum height of the convex portion 20.

[0059] In this embodiment, a groove portion is provided on the inner wall surface of the plate body 10, and a groove portion is provided between any two adjacent convex portions 20; by providing the groove portion, it can be made that the air flow is not likely to form a vortex on the plate body 10, so that the air flow sent out from the air outlet 41 is relatively uniform everywhere, and the generation of abnormal noise is prevented.

[0060] Specifically, the maximum groove width of each groove portion is equal to the minimum horizontal distance between the corresponding two adjacent convex portions 20, and the width direction of the groove portion is the same as the extending direction of the plate body 10.

[0061] In this embodiment, the minimum horizontal spacing between two adjacent protrusions 20 has a value range of greater than or equal to 2 mm and less than or equal to 3.5 mm, that is, 2 mm ≤ d ≤ 3.5 mm. When d is greater than 3.5 mm, a large amount of airflow is blown out from between the protrusions 20, so that the effect of the protrusions 20 is small, and it is difficult to form the effect of expanding the air outlet range. When d is less than 2 mm, the airflow segments passing through two adjacent protrusions 20 will affect each other, and it is difficult to generate pressure pulsations with different trends in the extension direction of the plate body 10. Optionally, d is 2.5 mm.

[0062] In this embodiment, any three adjacent protrusions 20 are respectively the first protrusion, the second protrusion and the third protrusion, and the maximum height of the first protrusion and the maximum height of the third protrusion are both greater than or less than the maximum height of the second protrusion, so that the multiple protrusions 20 are serrated, and any five adjacent protrusions 20 can form a W-shaped structure.

[0063] Specifically, the maximum height points of two adjacent protrusions 20 are located on a predetermined straight line, and the predetermined straight line is arranged at an angle β to the horizontal plane, and the value range of β is less than or equal to 30 degrees.

[0064] Specifically, the multiple protrusions 20 are divided into at least one protrusion unit arranged at intervals along the extension direction of the plate body 10, and one protrusion unit includes multiple protrusions 20 arranged at intervals along the extension direction of the plate body 10; the maximum heights of the multiple protrusions 20 of one protrusion unit are 3πD / 16Z, 5πD / 16Z, 4πD / 16Z, 5πD / 16Z, 4πD / 16Z, 3πD / 16Z, 4πD / 16Z, 3πD / 16Z, 5πD / 16Z respectively; using this setting method, the generation of abnormal noise can be minimized and the airflow turbulence effect can be achieved.

[0065] The present invention also provides an air conditioner indoor unit, such as Figure 1 As shown, it includes a housing 40 and the above-mentioned air guide plate structure, and an air outlet 41 is provided on the housing 40.

[0066] Specifically, the air conditioner indoor unit further includes a cross-flow fan 30 disposed in a casing 40 .

[0067] From the analysis of fluid dynamics, the raised portion 20 of the wind guide plate structure of the present application can break and weaken the gradually thickening boundary layer of the flowing airflow passing through it, so as to reduce the viscous resistance between the flowing airflow and the raised portion 20, so that the raised portion 20 has the characteristics of low flow resistance; and, in the process of the airflow passing through the wind guide plate structure of the present application, the flow pattern of the airflow changes, and the lower small vortex at the tail of the airflow changes from the original one with an underdeveloped vortex core to one without a vortex core. The presence of a vortex core means that there is airflow condensed at the center of the vortex, which is not conducive to the convection and diffusion of the airflow. The flow state of the small vortex without a vortex core is better, the airflow is smoother, and the energy consumption is reduced, thereby making the flow of the airflow through the wind guide plate structure of the present application smoother, which makes it easier to achieve soft wind and dispersed wind effects.

[0068] The present invention also provides an air conditioner, which comprises the above-mentioned air conditioner indoor unit.

[0069] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0070] In the air guide plate structure of the present invention, the air guide plate structure includes a plate body 10 and at least one protrusion 20. The plate body 10 is rotatably arranged at the air outlet 41, and the extension direction of the plate body 10 is parallel to or the same as the extension direction of the rotation axis of the plate body 10; at least one protrusion 20 is arranged at intervals on the inner wall surface of the plate body 10 along the extension direction of the plate body 10, so that the airflow flowing out of the air outlet 41 is blown out along a predetermined trajectory under the guiding action of the protrusion 20.

[0071] At least one raised portion 20 is provided on the plate body 10 to divide the airflow passing through the plate body 10 into multiple airflow segments along the extension direction of the plate body 10 (i.e., airflow separation is generated). The airflow segment passing through the raised portion 20 and the airflow segment passing through the inner wall of the plate body 10 have different flow directions. The airflow segment passing through the raised portion 20 flows along the top surface of the raised portion 20, and the airflow segment passing through the inner wall of the plate body 10 flows along its inner wall. Compared with the existing air guide plate structure, the air guide plate structure of the present application improves the direction of the airflow delivered from the air outlet 41. On the one hand, when the air outlet 41 blows out cold air and the plate body 10 tilts downward, rapid cooling can be achieved and the cooling effect can be improved. At this time, due to the provision of the raised portion 20, the flow direction of part of the airflow segment of the original airflow is changed, so that the airflow segment passing through the raised portion 20 tilts downward. The inclination angle of blowing becomes smaller, or the air flow section passing through the protrusion 20 is blown out in a horizontal direction, or the air flow section passing through the protrusion 20 is blown out obliquely upward (the blowing direction of the air flow section passing through the protrusion 20 is related to the height of the protrusion 20 and the top surface shape of the protrusion 20), thereby changing the direction of part of the air section of the cold air blown out from the air outlet 41, which can avoid or reduce the phenomenon of cold air blowing directly on people when the plate body 10 is tilted downward, and solves the problem that the existing air guide plate has poor cooling effect when adopting an air outlet method that avoids cold air blowing directly on people; on the other hand, in the direction perpendicular to the extension direction of the plate body 10, the air flow blown out from the air outlet 41 increases the flow range after passing through the air guide plate structure of the present application, that is, increases the air outlet range, achieves the air flow disturbance effect, which is beneficial to improving the cooling effect.

[0072] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0073] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wind deflector structure, characterized in that: include: A plate body (10), the plate body (10) being rotatably arranged at the air outlet (41), and the extension direction of the plate body (10) being parallel to or identical to the extension direction of the rotation axis of the plate body (10); at least one raised portion (20), the at least one raised portion (20) being arranged at intervals on the inner wall surface of the plate body (10) along the extension direction of the plate body (10), so that the airflow flowing out of the air outlet (41) is blown out along a predetermined trajectory under the guiding effect of the raised portion (20); The air guide plate structure is located outside the crossflow fan (30), and the crossflow fan (30) comprises a plurality of fan segments arranged in sequence along its axial direction; the plate body (10) comprises a plurality of plate segments arranged in sequence along its extension direction, and the plurality of plate segments are used to be arranged in one-to-one correspondence with the plurality of fan segments; each of the plate segments is provided with at least one of the protruding portions (20); The maximum height of each of the protrusions (20) relative to the inner wall surface of the plate body (10) is H, and the value range of the maximum height H is: H2≤H≤H1; H1=5πD / (16Z), H2=3πD / (16Z); D is the outer diameter of the crossflow fan (30), and Z is the number of blades of the crossflow fan (30); The maximum heights of any two adjacent protrusions (20) are different; Along a direction perpendicular to the extension direction of the plate body (10), each of the protruding portions (20) comprises a first protruding segment (21), a second protruding segment (22) and a third protruding segment (23) which are connected in sequence, wherein the first protruding segment (21) is located on a side of the second protruding segment (22) close to the cross-flow fan (30); from an end of the first protruding segment (21) away from the second protruding segment (22) to an end thereof close to the second protruding segment (22), the height of the first protruding segment (21) gradually increases; and from an end of the third protruding segment (23) close to the second protruding segment (22) to an end thereof away from the second protruding segment (22), the height of the third protruding segment (23) gradually decreases; The height of the second convex section (22) gradually increases from the end of the second convex section (22) close to the first convex section (21) to the end of the second convex section (22) far from the first convex section (21); the increase in the height of the second convex section (22) is smaller than the increase in the height of the first convex section (21); Along a direction perpendicular to the extension direction of the plate body (10), the length of the first protruding section (21) is greater than the length of the second protruding section (22), and the length of the second protruding section (22) is greater than the length of the third protruding section (23); Along a direction perpendicular to the extension direction of the plate body (10), the end surface of one end of the two ends of the protruding portion (20) that is away from the cross-flow fan (30) is recessed inwardly.

2. The air guide plate structure according to claim 1, characterized in that: The width direction of each of the protruding portions (20) is parallel to the extending direction of the plate body (10); the maximum width of each of the protruding portions (20) is A, and the value range of the maximum width A is: A ≤ (L - Nd) / N; where L is the length of the plate body (10) along its extending direction, N is the number of the protruding portions (20) on the plate body (10), and d is the minimum horizontal distance between two adjacent protruding portions (20); and / or The length direction of each of the protruding portions (20) is perpendicular to the extending direction of the plate body (10); the maximum length of each of the protruding portions (20) is Y2; the width of the plate body (10) is Y1, and the width direction of the plate body (10) is perpendicular to its extending direction; where Y2 ≤ Y1.

3. The air deflector structure according to claim 1, wherein The top surface of the first protruding section (21) intersects with the inner wall surface of the plate body (10).

4. The air guide plate structure according to claim 1, characterized in that: The outer periphery of the longitudinal section of each of the protruding portions (20) is a predetermined curve, the predetermined curve includes a predetermined arc segment, and the predetermined arc segment passes through the highest point of the protruding portion (20); the longitudinal section is perpendicular to the extending direction of the plate body (10); The radius of the predetermined arc segment is R, R < D / n and R > 1.5H; where D is the outer diameter of the cross-flow fan (30), the value range of n is 15 to 30, and H is the maximum height of the protruding portion (20).

5. The air guide plate structure according to claim 1, characterized in that: The inner wall surface of the plate body (10) is provided with groove portions, and the groove portions are provided between any two adjacent protruding portions (20); The maximum groove width of each of the groove portions is equal to the minimum horizontal distance between the corresponding two adjacent protruding portions (20), and the width direction of the groove portion is the same as the extending direction of the plate body (10).

6. The air guide plate structure according to any one of claims 1, 2 and 5, characterized in that: The value range of the minimum horizontal distance between two adjacent protruding portions (20) is greater than or equal to 2 mm and less than or equal to 3.5 mm.

7. The air guide plate structure according to claim 1, characterized in that: Any three adjacent protruding portions (20) are successively a first protruding portion, a second protruding portion, and a third protruding portion, and the maximum height of the first protruding portion and the maximum height of the third protruding portion are both greater than or both less than the maximum height of the second protruding portion.

8. The air guide plate structure according to claim 7, characterized in that: The maximum height points of two adjacent protruding portions (20) are located on a predetermined straight line, and the predetermined straight line is arranged at an angle β with the horizontal plane, and the value range of β is less than or equal to 30 degrees.

9. An air conditioner indoor unit, characterized in that: It includes a casing (40) and the air deflector structure according to any one of claims 1 to 8, and an air outlet (41) is provided on the casing (40).

10. An air conditioner, characterized in that: It includes an air conditioner indoor unit according to claim 9.

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