A housing assembly for a fresh air component, a fresh air component and an air conditioner

Abstract

The application discloses a shell assembly for a fresh air component, a fresh air component and an air conditioner. The shell assembly comprises a fresh air shell and a guide vane. The fresh air shell comprises a first air duct section. The first air duct section comprises a first air vent and a second air vent. The first air vent is adapted to be connected with a fresh air pipe. The central axis of the second air vent is different from the extension direction of the central axis of the first air vent. The center line of the first air duct section extends to the second air vent through one bending of the first air vent. The guide vane is at least one and is arranged in the first air duct section. The guide vane is spaced apart from the inner wall of the first air duct section and extends along a curve smoothly in the direction from the first air vent to the second air vent. The shell assembly according to the application can improve the air volume and reduce the noise.

Description

Technical Field

[0001] This invention relates to the field of fresh air technology, and in particular to a housing assembly for a fresh air component, a fresh air component, and an air conditioner. Background Technology

[0002] Some air conditioners in related technologies have a fresh air function. Such air conditioners usually introduce fresh air into the indoor unit through a fresh air module. The fresh air module is connected to the outdoor unit through a fresh air duct. In order to ensure aesthetics and meet user needs, the refrigerant pipe connecting the indoor unit and the outdoor unit and the aforementioned fresh air duct are all installed in the wall hole. Considering that the wall hole is small in size, but the diameter of the refrigerant pipe is constant, the diameter of the fresh air duct is small, the fresh air volume is small, and the ventilation noise is large. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a housing assembly for a fresh air component, which can increase airflow and reduce noise.

[0004] The present invention also proposes a fresh air component having the above-described housing assembly.

[0005] According to a first aspect of the present invention, a housing assembly for a fresh air component includes: a fresh air housing, the fresh air housing including a first air duct section, the first air duct section including a first vent and a second vent, the first vent being adapted to be connected to a fresh air duct, the central axis of the second vent having a different extension direction from the central axis of the first vent, the centerline of the first air duct section extending from the first vent through a bend to the second vent; and an air guide plate, at least one air guide plate disposed within the first air duct section, the air guide plate being spaced apart from the inner wall of the first air duct section and extending smoothly along a curve in the direction from the first vent to the second vent.

[0006] According to an embodiment of the present invention, the housing assembly for a fresh air component guides the airflow direction by providing at least one air guide plate in the first air duct section, thereby effectively reducing airflow loss caused by excessive turning angle, effectively increasing air volume, and reducing noise.

[0007] In some embodiments, the air guide plate extends along an arc.

[0008] In some embodiments, the central angle of the air guide plate is a first angle β, and the angle between the central axis of the first vent and the central axis of the second vent is a second angle α, wherein the difference between the first angle β and the second angle α is greater than or equal to -45° and less than or equal to 30°.

[0009] In some embodiments, the angle between the central axis of the first vent and the central axis of the second vent is a second angle α, and the angle between the tangent of the end of the air guide plate near the second vent and the central axis of the first vent is a third angle γ. The values ​​of the second angle α and the third angle γ are both greater than or equal to 80° and less than or equal to 100°.

[0010] In some embodiments, there are multiple air guide vanes, which are spaced apart along a direction from the inner bend side to the outer bend side of the first air duct section.

[0011] In some embodiments, the end of the air guide plate near the first vent along its extension direction is the first end, and on a first projection plane perpendicular to the centerline of the first vent, the first ends of a plurality of air guide plates are sequentially spaced apart within the first vent; and / or the end of the air guide plate near the second vent along its extension direction is the second end, and on a second projection plane perpendicular to the centerline of the second vent, the second ends of a plurality of air guide plates are sequentially spaced apart within the second vent.

[0012] In some embodiments, each of the air guide vanes extends along an arc, with the air guide vanes closer to the outer curved side of the first air duct section having a longer arc length.

[0013] In some embodiments, the centers of the plurality of air guides coincide.

[0014] In some embodiments, the central angles of the plurality of air guides also coincide.

[0015] In some embodiments, the number of air guides n is greater than or equal to 3, and the distance between two adjacent air guides closer to the outer bend side of the first air duct section is larger.

[0016] In some embodiments, the distance L between two adjacent air guide plates satisfies L=[D1 / (n+1)]·[n / (1+2n)]·k, where D1 is the width of the second vent in the direction from the inner bend side to the outer bend side of the first air duct section, n is the number of air guide plates, and k is greater than or equal to 0.9 and less than or equal to 1.5.

[0017] In some embodiments, the number of air guide vanes, n, is greater than or equal to 2 and less than or equal to 7.

[0018] A fresh air component according to a second aspect of the present invention includes: a housing assembly and a fresh air fan disposed within the housing assembly, wherein the housing assembly is a housing assembly according to a first aspect of the present invention.

[0019] According to the embodiments of the present invention, by providing the housing assembly of the first aspect embodiment described above, the air volume of the fresh air component is increased and the noise of the fresh air component is reduced.

[0020] An air conditioner according to a third aspect of the present invention includes a temperature regulating component and a fresh air component according to a second aspect of the present invention.

[0021] According to an embodiment of the present invention, the fresh air performance of the air conditioner is improved by providing the fresh air component described in the second aspect embodiment above.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Figure 1 This is a perspective view of a fresh air component according to an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 A cross-sectional view of the fresh air component shown;

[0025] Figure 3 yes Figure 2 A magnified view of a portion of the image;

[0026] Figure 4 This is a partial cross-sectional view of a fresh air component according to another embodiment of the present invention;

[0027] Figure 5 yes Figure 1 The front view of the fresh air component shown;

[0028] Figure 6 This is a perspective view of an air conditioner according to an embodiment of the present invention;

[0029] Figure 7 This is a comparative experimental table of the schemes with and without air guides;

[0030] Figure 8 This is the noise spectrum diagram of the air guide vane-less design at 1800 rpm;

[0031] Figure 9 This is the noise spectrum diagram of the air guide plate solution at 1800 rpm.

[0032] Figure label:

[0033] Air conditioner 1000; Fresh air unit 100; Temperature control unit 200;

[0034] Housing assembly 10;

[0035] Fresh air casing 1;

[0036] First air duct section 11; First wall 11a; Second wall 11b; First ventilation opening 111; Second ventilation opening 112;

[0037] Second air duct section 12; volute 13; air outlet 131;

[0038] Air guide plate 2; First end 21; Second end 22;

[0039] First air guide plate 2a; Second air guide plate 2b; Third air guide plate 2c; Fourth air guide plate 2d;

[0040] 3. Fresh air duct;

[0041] Air handling unit 20; fresh air fan 30. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0043] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0044] Hereinafter, with reference to the accompanying drawings, a housing assembly 10 for a fresh air component 100 according to an embodiment of the present invention will be described.

[0045] like Figure 1 and Figure 2As shown, the housing assembly 10 may include a fresh air housing 1, which includes a first air duct section 11. The first air duct section 11 includes a first vent 111 and a second vent 112. The first vent 111 is adapted to be connected to the fresh air duct 3, that is, the first vent 111 is configured as a fresh air interface adapted to be connected to the fresh air duct 3. The central axis 1120 of the second vent 112 extends in a different direction than the central axis 1110 of the first vent 111, that is, they are neither parallel nor coincident. The centerline of the first air duct section 11 extends from the first vent 111 to the second vent 112 after a bend.

[0046] Therefore, in the fresh air mode, when outdoor fresh air enters the first air duct section 11 from the first vent 111 through the fresh air duct 3, it needs to bend and change direction once before reaching the second vent 112. It is worth noting that the present invention is not limited to this. In some optional embodiments, the fresh air component 100 is not limited to only having a fresh air mode; for example, it may also have an exhaust mode. In the exhaust mode, indoor air enters the first air duct section 11 from the second vent 112 and needs to bend and change direction once before reaching the first vent 111 to be exhausted to the outside through the fresh air duct 3. For simplicity, this article only uses the fresh air mode as an example for explanation.

[0047] In embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the housing assembly 10 further includes at least one air guide plate 2, which is disposed within the first air duct section 11. The air guide plate 2 is spaced apart from the inner wall of the first air duct section 11, and extends smoothly along a curve from the first vent 111 to the second vent 112. That is, one or more air guide plates 2 are disposed within the first air duct section 11, each air guide plate 2 does not contact the inner wall of the first air duct section 11, and each air guide plate 2 extends smoothly along a curve from the first vent 111 to the second vent 112.

[0048] Specifically, since the airflow needs to bend once when passing through the first air duct section 11, there is a certain airflow loss. According to the embodiment of the present invention, the housing assembly 10 provides at least one air guide plate 2 in the first air duct section 11 to guide the direction of airflow, so that the airflow can flow more smoothly from the first vent 111 to the second vent 112, or from the second vent 112 to the first vent 111. This can reduce the aerodynamic loss caused by the impact of the airflow on the inner wall of the first air duct section 11 at the bend, thereby reducing noise and increasing air volume.

[0049] In short, according to the embodiment of the present invention, the housing assembly 10 guides the airflow direction by providing at least one air guide plate 2 at the bend position near the fresh air inlet of the housing assembly 10, thereby effectively reducing airflow loss caused by excessive turning angle, effectively increasing air volume and reducing noise.

[0050] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the air guide plate 2 extends along an arc, that is, at least one air guide plate 2 extends smoothly along an arc in the direction from the first vent 111 to the second vent 112, or in other words, the air guide plate 2 can be formed by an arc along a first direction perpendicular to the central axis 1110 of the first vent 111 (e.g., Figure 2 It is stretched in a direction perpendicular to the paper. As a result, the air guide plate 2 extending along the arc can better guide the airflow direction, effectively reduce airflow loss caused by excessive turning angle, effectively increase air volume, and effectively reduce noise.

[0051] Optionally, such as Figure 2 and Figure 3 As shown, the central axis 1110 of the first vent 111 and the central axis 1120 of the second vent 112 are coplanar on the first plane, with the first plane as the projection plane (e.g., Figure 2 As shown in the plane, the orthographic projection of the air guide plate 2 on the projection plane extends along an arc. Thus, the first air duct section 11 has a simple structure and is easy to process, and the air guide plate 2 has a simple structure and is easy to design and form.

[0052] Optionally, such as Figure 2 and Figure 3 As shown, when the air guide plate 2 extends along the arc, the central angle of the air guide plate 2 is the first angle β, and the angle between the central axis 1110 of the first vent 111 and the central axis 1120 of the second vent 112 is the second angle α. The difference between the first angle β and the second angle α is greater than or equal to -45° and less than or equal to 30°. For example, β-α can be -45°, -30°, -20°, -10°, 0°, 10°, 20°, 30°, etc. Therefore, the resistance effect of the air guide plate 2 itself can be reduced to a greater extent, and airflow loss can be better minimized.

[0053] Specifically, the direction is the central axis 1110 passing through the first vent 111 and perpendicular to the aforementioned first direction (i.e., the stretching direction of the air guide plate 2, for example...). Figure 2 The plane perpendicular to the plane of the paper is the projection plane (e.g., the plane perpendicular to the plane of the paper). Figure 2(as shown in the plane), on this projection plane, the angle between the central axis 1110 of the first vent 111 and the central axis 1120 of the second vent 112 is the second angle α, and the central angle of the guide plate 2 extending along the arc is the first angle β, β-α∈[-45°, 30°]. Optionally, β-α is 0°, that is, β=α. In this case, it is not only convenient for processing and design, but also more effective in reducing the resistance effect brought by the guide plate 2 itself, and better reducing airflow loss.

[0054] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the angle between the central axis 1110 of the first vent 111 and the central axis 1120 of the second vent 112 is the second angle α. The angle between the tangent of the end of the guide vane 2 closest to the second vent 112 and the central axis 1110 of the first vent 111 is the third angle γ. The values ​​of both the second angle α and the third angle γ are greater than or equal to 80° and less than or equal to 100°. For example, α and γ can both be 80°, 85°, 90°, 95°, 100°, etc. Therefore, the resistance effect of the guide vane 2 itself can be reduced to a greater extent, thus better reducing airflow loss.

[0055] Specifically, the direction is the central axis 1110 passing through the first vent 111 and perpendicular to the aforementioned first direction (i.e., the stretching direction of the air guide plate 2, for example...). Figure 2 The plane perpendicular to the plane of the paper is the projection plane (e.g., the plane perpendicular to the plane of the paper). Figure 2 As shown in the plane, on this projection plane, the angle between the central axis 1110 of the first vent 111 and the central axis 1120 of the second vent 112 is the second angle α, and the angle between the tangent of the end of the air guide plate 2 near the second vent 112 and the central axis 1110 of the first vent 111 is the third angle γ, where γ∈[80°, 100°] and α∈[80°, 100°]. Optionally, γ=α=90°, thus simplifying the design, facilitating manufacturing, and significantly reducing the resistance effect of the air guide plate 2 itself, thereby better reducing airflow loss.

[0056] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, there are multiple air guide plates 2, which are spaced apart along the direction from the inner bend to the outer bend of the first air duct section 11. Therefore, when airflow passes through the first air duct section 11, the airflow at different positions on the same cross-section of the first air duct section 11 can be guided by the multiple air guide plates 2, thus achieving a more effective airflow guidance effect, minimizing airflow loss caused by excessively large airflow bends, effectively increasing airflow volume, and effectively reducing noise.

[0057] It is understandable that if the airflow moves along a line parallel to the centerline of the first duct section 11, from the first vent 111 to the second vent 112, or from the second vent 112 to the first vent 111, the side with the relatively shorter path is the inner bend side, and the side with the relatively longer path is the outer bend side. For example, in Figure 3 In the optional example shown, if the central axis 1110 of the first vent 111 and the central axis 1120 of the second vent 112 are coplanar with the first plane, the first plane is used as the cross-section (e.g., Figure 3 As shown in the plane, in this cross-section, the wall of the first air duct section 11 includes a first wall 11a and a second wall 11b. One end of the first vent 111 is connected to one end of the second vent 112 through the first wall 11a, and the other end of the first vent 111 is connected to the other end of the second vent 112 through the second wall 11b. The length of the second wall 11b is greater than the length of the first wall 11a. So obviously, the side of the first air duct section 11 closer to the second wall 11b is the outer curved side, and the side of the first air duct section 11 closer to the first wall 11a is the inner curved side.

[0058] In some embodiments of the present invention, such as Figure 3 As shown, the end of the air guide plate 2 closest to the first vent 111 in its extension direction is the first end 21. On the first projection plane S1, which is perpendicular to the center line L1 of the first vent 111, the first ends 21 of multiple air guide plates 2 are sequentially spaced within the first vent 111. That is, the orthographic projections of the first ends 21 of multiple air guide plates 2 on the first projection plane S1 are spaced apart, and all fall within the orthographic projection range of the first vent 111 on the first projection plane S1. Thus, the airflow entering the first air duct section 11 from the first vent 111 can be guided by the multiple air guide plates 2 (or the airflow in the first air duct section 11 can be guided by the multiple air guide plates 2 before flowing out of the first vent 111), thereby allowing the multiple air guide plates 2 to play a more complete role, greatly reducing airflow loss caused by excessive airflow turning angle, effectively increasing airflow volume, and effectively reducing noise.

[0059] In some embodiments of the present invention, such as Figure 3As shown, the end of the air guide plate 2 closest to the second vent 112 in its extension direction is the second end 22. On the second projection plane S2, which is perpendicular to the center line L2 of the second vent 112, the second ends 22 of multiple air guide plates 2 are sequentially spaced and fall within the area where the second vent 112 is located. That is, the orthographic projections of the second ends 22 of multiple air guide plates 2 on the second projection plane S2 are spaced apart, and all fall within the orthographic projection range of the second vent 112 on the second projection plane S2. Thus, the airflow in the first air duct section 11 can be guided by multiple air guide plates 2 before flowing out of the second vent 112 (or the airflow entering the first air duct section 11 from the second vent 112 can be guided by multiple air guide plates 2), thereby allowing the multiple air guide plates 2 to play a more complete role, greatly reducing airflow loss caused by excessive airflow turning angle, effectively increasing airflow volume, and effectively reducing noise.

[0060] In some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, each air guide plate 2 extends along an arc, with the arc length of the air guide plate 2 closer to the outer bend side of the first air duct section 11 being longer. That is, in any two adjacent air guide plates 2, the arc length of the air guide plate 2 relatively closer to the outer bend side is greater than the arc length of the air guide plate 2 relatively closer to the inner bend side. Therefore, multiple air guide plates 2 can more effectively match and adapt to the airflow distribution and flow characteristics within the first air duct section 11 according to their respective positions. Each air guide plate 2 can play a more significant role, minimizing airflow loss caused by excessively large airflow turning angles, effectively increasing airflow volume, and effectively reducing noise.

[0061] For example Figure 3 and Figure 4 In the example shown, in any two adjacent air guide plates 2, the arc length of the air guide plate 2 relatively closer to the second wall 11b is greater than the arc length of the air guide plate 2 relatively closer to the first wall 11a. For example, in Figure 4 In the example shown, there are four air guide plates 2, which are the first air guide plate 2a, the second air guide plate 2b, the third air guide plate 2c and the fourth air guide plate 2d from the inner bend side to the outer bend side. The arc length of the fourth air guide plate 2d is greater than the arc length of the third air guide plate 2c, the arc length of the third air guide plate 2c is greater than the arc length of the second air guide plate 2b, and the arc length of the second air guide plate 2b is greater than the arc length of the first air guide plate 2a.

[0062] In some embodiments of the present invention, such as Figure 3 and Figure 4As shown, when each air guide plate 2 extends along an arc, the centers of the multiple air guide plates 2 can coincide. Therefore, the multiple airflows guided by the multiple air guide plates 2 can flow in roughly parallel without colliding or interfering with each other, thereby further reducing wind resistance, minimizing airflow loss caused by excessive turning angles, effectively increasing airflow volume, and effectively reducing noise. Furthermore, setting the multiple arc-shaped air guide plates 2 concentrically facilitates design and manufacturing.

[0063] Optionally, such as Figure 3 and Figure 4 As shown, when each air guide plate 2 extends along an arc and the centers of multiple air guide plates 2 coincide, the central angles of multiple air guide plates 2 can also coincide. That is, the central angles of multiple air guide plates 2 are equal and the radial lines defining these central angles coincide, or in other words, the first ends 21 of multiple air guide plates 2 are located on the same radial line, and the second ends 22 of multiple air guide plates 2 are located on the same radial line. Therefore, the airflow within the first air duct section 11 can simultaneously enter and exit multiple air guide plates 2, thus avoiding problems such as airflow vortices caused by the time difference in airflow from different air guide plates 2. This further reduces airflow loss caused by excessively large airflow turning angles and the resistance effect brought by the air guide plates 2 themselves, better reducing airflow loss, effectively increasing airflow volume, and effectively reducing noise.

[0064] like Figure 3 and Figure 4 As shown, when each air guide plate 2 extends along an arc and the centers of multiple air guide plates 2 coincide, optionally, the number of air guide plates 2, n, is greater than or equal to 3, and the distance between two adjacent air guide plates 2 closer to the outer curved side of the first air duct section 11 is larger. Therefore, multiple air guide plates 2 can more effectively match and adapt to the airflow distribution and flow characteristics within the first air duct section 11 according to their respective positions. Each air guide plate 2 can play a more significant role, minimizing airflow loss caused by excessive airflow turning angles, effectively increasing airflow volume, and effectively reducing noise.

[0065] For example in Figure 4 In the example shown, there are four air guide plates 2, which are the first air guide plate 2a, the second air guide plate 2b, the third air guide plate 2c and the fourth air guide plate 2d from the inner bend side to the outer bend side. The distance (i.e., radial distance) between the first air guide plate 2a and the second air guide plate 2b is L1, the distance (i.e., radial distance) between the second air guide plate 2b and the third air guide plate 2c is L2, and the distance (i.e., radial distance) between the third air guide plate 2c and the fourth air guide plate 2d is L3, where L3 > L2 > L1.

[0066] like Figure 3 and Figure 4As shown, when each air guide plate 2 extends along an arc and the centers of multiple air guide plates 2 coincide, optionally, when each air guide plate 2 extends along an arc and the centers of multiple air guide plates 2 coincide, the distance L between two adjacent air guide plates 2 satisfies L=[D1 / (n+1)]·[n / (1+2n)]·k, where D1 is the width of the second vent 112 in the direction from the inner bend side to the outer bend side of the first air duct section 11, n is the number of air guide plates 2, and k is a coefficient greater than or equal to 0.9 and less than or equal to 1.5. This avoids the distance between two adjacent air guide plates 2 being too large or too small, allowing each air guide plate 2 to fully utilize its guiding function, and also avoids the flow resistance caused by an excessively small distance between two adjacent air guide plates 2, better reducing airflow loss, effectively increasing air volume, and effectively reducing noise.

[0067] Furthermore, it should be noted that when the number of air guide plates 2, n, is greater than or equal to 3, the distance (i.e., radial distance) between any two adjacent air guide plates 2 satisfies the value range of L mentioned above. For example... Figure 4 The distances (radial distances) between the first guide vane 2a and the second guide vane 2b shown are L1, L2, and L3, respectively, all satisfying the aforementioned range of L values. In short, distances L1, L2, and L3 all satisfy the aforementioned range of L values. Therefore, it is possible to more effectively avoid excessively large or small distances between any two adjacent guide vanes 2, allowing each guide vane 2 to fully utilize its guiding function. Furthermore, it avoids flow resistance caused by excessively small distances between adjacent guide vanes 2, better reducing airflow loss, more effectively increasing air volume, and reducing noise.

[0068] It is understood that when the second vent 112 is a circular opening, D1 is the diameter of the second vent 112. However, the present invention is not limited to this, and the second vent 112 can also be other shapes, such as an elliptical or polygonal opening, etc. In addition, the shape of the first vent 111 is also not limited, and can be specifically set to match the shape of the interface of the fresh air duct 3, such as a circle, etc., without limitation.

[0069] Research and analysis show that an excessive number of air guide plates 2 results in high internal resistance and aerodynamic losses, while an insufficient number of air guide plates 2 leads to ineffective airflow guidance. Therefore, in some embodiments of this invention, the number of air guide plates 2, n, is greater than or equal to 2 and less than or equal to 7. That is, the number of air guide plates 2, n, can be 2, 3, 4, 5, 6, or 7. This ensures that the number of air guide plates 2 is neither too many nor too few, effectively preventing excessively large or small distances between any two adjacent air guide plates 2. This allows each air guide plate 2 to fully perform its guiding function and avoids flow resistance caused by excessively small distances between adjacent air guide plates 2, thus better reducing airflow losses, more effectively increasing air volume, and reducing noise.

[0070] Furthermore, the number n of air guide vanes 2 can be greater than or equal to 3 and less than or equal to 5. That is, the number n of air guide vanes 2 can be 3, 4, or 5. This better ensures that the number of air guide vanes 2 is neither too many nor too few, effectively avoiding excessively large or small distances between any two adjacent air guide vanes 2. This allows each air guide vane 2 to fully perform its airflow guiding function, and also avoids flow resistance caused by excessively small distances between two adjacent air guide vanes 2, thus better reducing airflow loss, more effectively increasing air volume, and reducing noise.

[0071] Optionally, in some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the end of the air guide plate 2 closest to the second vent 112 in the extending direction is the second end 22. At the second end 22, the air guide plate 2 closest to the outer curved side of the first air duct section 11 is perpendicular to the wall surface of the outer curved side of the first air duct section 11 (e.g., Figure 4 The distance between the second walls 11b) shown is greater than the distance between any two adjacent air guide plates 2. For example Figure 4 As shown, the guide vane 2 closest to the outer bend of the first air duct section 11 is the fourth guide vane 2d. The distance between the fourth guide vane 2d and the second wall 11b is L4, where L4 is greater than any of L3, L2, or L1. Therefore, multiple guide vanes 2 can more effectively match and adapt to the airflow distribution and flow characteristics within the first air duct section 11 according to their respective positions, minimizing excessive airflow turning angles and airflow losses caused by the interaction between the guide vanes 2 and the first air duct section 11, effectively increasing airflow and reducing noise.

[0072] Optionally, in some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the end of the air guide plate 2 closest to the second vent 112 in the extending direction is the second end 22. At the second end 22, the air guide plate 2 closest to the inner curved side of the first air duct section 11 is perpendicular to the wall surface of the inner curved side of the first air duct section 11 (e.g., Figure 4The distance between the first walls 11a) shown is greater than the distance between any two adjacent air guide plates 2. For example Figure 4 As shown, the guide vane 2 closest to the inner curved side of the first air duct section 11 is the first guide vane 2a. The distance between the first guide vane 2a and the first wall 11a is L0, where L0 is greater than any one of L3, L2, and L1. Therefore, multiple guide vanes 2 can more effectively match and adapt to the airflow distribution and flow characteristics within the first air duct section 11 according to their respective positions, minimizing excessive airflow turning angles and airflow losses caused by the interaction between the guide vanes 2 and the first air duct section 11, effectively increasing airflow and reducing noise.

[0073] Optionally, in some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the end of the air guide plate 2 closest to the second vent 112 in the extending direction is the second end 22. At the second end 22, the air guide plate 2 closest to the outer curved side of the first air duct section 11 is perpendicular to the wall surface of the outer curved side of the first air duct section 11 (e.g., Figure 4 The distance between the second wall 11b shown is less than the distance between the air guide plate 2 closest to the inner bend side of the first air duct section 11 and the wall surface of the inner bend side of the first air duct section 11 (e.g., Figure 4 The distance between the first walls 11a) shown. For example Figure 4 As shown, the guide vane 2 closest to the outer bend of the first air duct section 11 is the fourth guide vane 2d, and the distance between the fourth guide vane 2d and the second wall 11b is L4. The guide vane 2 closest to the inner bend of the first air duct section 11 is the first guide vane 2a, and the distance between the first guide vane 2a and the first wall 11a is L0, where L4 is less than L0. Therefore, multiple guide vanes 2 can more effectively match and adapt to the airflow distribution and flow characteristics within the first air duct section 11 according to their respective positions, minimizing excessive airflow turning angles and airflow losses caused by the coordination between the guide vanes 2 and the first air duct section 11, effectively increasing airflow and reducing noise.

[0074] Hereinafter, with reference to the accompanying drawings, a fresh air component 100 according to an embodiment of the present invention will be described.

[0075] like Figure 1 and Figure 5 As shown, the fresh air component 100 may include: a housing assembly 10 and a fresh air fan 30 disposed within the housing assembly 10, wherein the housing assembly 10 is a housing assembly 10 according to any of the above embodiments of the present invention. Therefore, since the housing assembly 10 can effectively reduce airflow loss caused by excessive turning angles, it can effectively increase the airflow of the fresh air component 100 and reduce the noise of the fresh air component 100.

[0076] For example, in some embodiments of the present invention, such as Figure 1 and Figure 5 As shown, the fresh air housing 1 also includes a second air duct section 12 and a volute section 13. The second air duct section 12 connects the air inlet of the first air duct section 11 and the volute section 13. An air handling assembly 20 is adapted to be installed in the second air duct section 12 (i.e., at least a portion of the air handling assembly 20 is located in the second air duct section 12). For example, the air handling assembly 20 may include at least one of a humidifier, a temperature controller, and a purifier. A fresh air fan 30 is installed in the volute section 13. Thus, the fresh air housing 1 has a simple structure and is easy to manufacture. The fresh air entering from the first air duct section 11 can first enter the second air duct section 12 and be pre-treated by the air handling assembly 20 before entering the volute section 13. The specific type of the fresh air fan 30 is not limited, and it can be a centrifugal fan, a cross-flow fan, an axial flow fan, etc. In addition, in some embodiments, an air outlet 131 may be provided on the volute 13, and fresh air entering the volute 13 can be directly or indirectly sent into the room through the air outlet 131, which will not be elaborated here.

[0077] Furthermore, it should be noted that the fresh air component 100 according to the embodiments of the present invention is not limited to having only a fresh air introduction function. For example, in some embodiments, by designing the air path of the fresh air component 100 and selecting the fresh air fan 30, it may also have an exhaust function to expel indoor polluted air to the outside, or a self-circulation function to draw in indoor air, process it through the air handling component 20, and then exhaust it back into the room, etc., which will not be elaborated here.

[0078] Hereinafter, with reference to the accompanying drawings, an air conditioner 1000 according to an embodiment of the present invention will be described.

[0079] like Figure 6 As shown, the air conditioner 1000 may include a temperature regulating component 200 and a fresh air component 100 according to the above embodiment of the present invention. The temperature regulating component 200 is used to regulate the air temperature and may include, for example, a heat exchanger. Therefore, since the airflow of the fresh air component 100 is increased and the noise is reduced, the fresh air performance of the air conditioner 1000 can be effectively improved.

[0080] It should be noted that the specific type of air conditioner 1000 according to the embodiments of the present invention is not limited. For example, it can be a split-type indoor unit, such as a floor-standing air conditioner, a wall-mounted air conditioner, etc. Once the type of air conditioner 1000 is determined, those skilled in the art can select the installation position of the fresh air component 100 according to the specific type of air conditioner 1000. For example, when the air conditioner 1000 is a wall-mounted air conditioner and the length direction of the air conditioner 1000 extends laterally, the fresh air component 100 can be installed at one end of the length of the air conditioner 1000, and so on. Furthermore, other configurations and operations of the air conditioner 1000 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0081] Of course, the present invention is not limited thereto. The fresh air component 100 according to the embodiments of the present invention is not limited to being applied to the air conditioner 1000. For example, in other embodiments of the present invention, the fresh air component 100 can also be used in fresh air equipment, purification equipment, etc.

[0082] Hereinafter, an embodiment of the fresh air component 100 according to a specific embodiment of the present invention will be described.

[0083] As users' demands for air quality increase, some air conditioners on the market now feature a fresh air function. These air conditioners typically use a fresh air module to introduce fresh air into the indoor unit. This module is connected to the outdoor unit via a fresh air duct. To ensure aesthetics and meet user needs, both the refrigerant pipes connecting the indoor and outdoor units and the aforementioned fresh air duct are installed inside wall openings. Considering the small size of these wall openings, but the constant diameter of the refrigerant pipes, the diameter of the fresh air duct is also small, resulting in a relatively small fresh air volume. For example, the current maximum fresh air volume is 60m³ / h. 3 / h, while according to existing testing methods and evaluations, 60m 3 A fresh air volume of 60 cubic meters per hour is only enough to meet the fresh air needs of two people in a bedroom. For a family of three, a fresh air volume of 60 cubic meters per hour is not effective in reducing indoor carbon dioxide concentration. Therefore, increasing the fresh air volume remains a challenge for the industry.

[0084] Based on the aforementioned technical problems, the applicant, through research, creatively discovered that in some fresh air modules of related technologies, the airflow in the fresh air duct is sent to the centrifugal fan after passing through two 90° turns from the back of the unit. During the two airflow turns, the airflow loss has reached 40%. If the static pressure loss at the airflow bends can be reduced, the fresh air volume can be increased.

[0085] In response, the applicant creatively proposed that a guide plate 2 could be installed at the first 90° turn of the fresh air interface where the fresh air module connects to the fresh air duct, thereby effectively reducing airflow loss caused by excessive turning angle of the fresh air interface and effectively increasing the fresh air volume.

[0086] Numerical simulations and experimental tests show that without the air guide vane 2, during the axial-to-radial transition of the fluid through the duct, the fluid's axial velocity is high, resulting in significant axial momentum. The fluid primarily transitions after impacting the cavity wall, with most of the fluid adhering to the right wall. Airflow efficiency is poor on the left side of the cavity, leading to significant backflow and a 25% flow loss at the bend in the fresh air inlet. However, with the air guide vane 2 installed—multiple vanes at the first 90° bend in the fresh air inlet—airflow loss is effectively reduced, while airflow efficiency is improved, resulting in a substantial increase in air volume.

[0087] By comparing solutions with and without air guide plate 2, such as Figure 7 As shown, it can be seen that at the same speed, the air volume can be increased by 22%; the noise can be reduced by 3.2 dBA; at the same noise level (e.g., 1600 rpm without a guide vane and 1800 rpm with a guide vane), the air volume can be increased by 40%; at the same air volume (e.g., 70m³ / min), the noise level can be reduced by 3.2 dBA. 3 At a speed of 30 rpm, noise can be reduced by 7.5 dBA. Here, "speed" refers to the speed of the fresh air fan at 30 rpm. For example... Figure 8 The image shows the noise spectrum of the fresh air fan 30 at 1800 rpm in scheme 2 without a guide vane; Figure 9 The image shows the noise spectrum of the fresh air fan 30 at 1800 rpm under the scheme with air guide plate 2. By comparison, it can be seen that at the same speed, the scheme with air guide plate 2 can achieve a comprehensive noise reduction effect.

[0088] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0090] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0091] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0093] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A housing assembly for a fresh air component, characterized in that, include: The fresh air housing includes a first air duct section, which includes a first vent and a second vent. The first vent is adapted to be connected to a fresh air duct. The central axis of the second vent extends in a different direction than the central axis of the first vent. The centerline of the first air duct section extends from the first vent to the second vent after a bend. At least one air guide plate is disposed within the first air duct section. The air guide plate is spaced apart from the inner wall of the first air duct section and extends smoothly along a curve from the first vent to the second vent. The number of air guide plates, n, is greater than or equal to 3. The distance between two adjacent air guide plates closer to the outer bend of the first air duct section is larger. The distance L between two adjacent air guide plates satisfies L=[D1 / (n+1)]·[n / (1+2n)]·k, where D1 is the width of the second vent in the direction from the inner bend to the outer bend of the first air duct section, n is the number of air guide plates, and k is greater than or equal to 0.9 and less than or equal to 1.

5. The end of the air guide plate closest to the second vent in the extension direction is the second end. At the second end, the distance between the air guide plate closest to the outer bend of the first air duct section and the wall of the outer bend of the first air duct section is greater than the distance between any two adjacent air guide plates.

2. The housing assembly for a fresh air component according to claim 1, characterized in that, The air guide plate extends along an arc.

3. The housing assembly for a fresh air component according to claim 2, characterized in that, The central angle of the air guide plate is the first angle β, and the angle between the central axis of the first vent and the central axis of the second vent is the second angle α. The difference between the first angle β and the second angle α is greater than or equal to -45° and less than or equal to 30°.

4. The housing assembly for a fresh air component according to claim 2, characterized in that, The angle between the central axis of the first vent and the central axis of the second vent is the second angle α, and the angle between the tangent of the end of the air guide plate near the second vent and the central axis of the first vent is the third angle γ. The values ​​of the second angle α and the third angle γ are both greater than or equal to 80° and less than or equal to 100°.

5. The housing assembly for a fresh air component according to any one of claims 1-4, characterized in that, The air guide plates are multiple and are spaced apart along the direction from the inner bend side to the outer bend side of the first air duct section.

6. The housing assembly for a fresh air component according to claim 5, characterized in that, The end of the air guide plate that is closer to the first ventilation opening in the extension direction is the first end. On the first projection plane that is perpendicular to the center line of the first ventilation opening, the first ends of the multiple air guide plates fall into the first ventilation opening in sequence at intervals. and / or The end of the air guide plate that is closer to the second vent in the extension direction is the second end. On the second projection plane that is perpendicular to the center line of the second vent, the second ends of the multiple air guide plates fall into the second vent in sequence at intervals.

7. The housing assembly for a fresh air component according to claim 5, characterized in that, Each of the air guides extends along an arc, with the air guides closer to the outer curved side of the first air duct section having a longer arc length.

8. The housing assembly for a fresh air component according to claim 7, characterized in that, The centers of the multiple air guide plates coincide.

9. The housing assembly for a fresh air component according to claim 8, characterized in that, The central angles of the multiple air guide plates also coincide.

10. The housing assembly for a fresh air component according to claim 1, characterized in that, The number of air guide plates, n, is less than or equal to 7.

11. A fresh air component, characterized in that, include: The housing assembly and the fresh air fan disposed within the housing assembly, wherein the housing assembly is the housing assembly according to any one of claims 1-10.

12. An air conditioner, characterized in that, It includes a temperature control component and a fresh air component as described in claim 11.

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