An air outlet duct structure, an air outlet panel and a ceiling-type air conditioner indoor unit

Abstract

The present invention discloses an air outlet duct structure, an air outlet panel and a ceiling-type air conditioner indoor unit. The air outlet duct structure includes a first air duct wall and a second air duct wall arranged opposite to each other, an air outlet channel is formed between the first air duct wall and the second air duct wall, and the first air duct wall includes a plurality of connected concave curved surfaces along the airflow direction, and the curvature radius of the plurality of concave curved surfaces decreases successively along the airflow direction. The air outlet duct structure provided by the present invention is designed with a plurality of connected concave curved surfaces along the airflow direction on the first air duct wall, and the curvature radius of the plurality of concave curved surfaces decreases successively along the airflow direction, thereby enhancing the air induction capacity, thereby achieving the purpose of increasing the air volume, and also allowing the air outlet duct structure to be flexibly handled.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning equipment, in particular to an air outlet duct structure, an air outlet panel and a ceiling-type air conditioner indoor unit containing the same. Background Art

[0002] The ceiling type air conditioner is also called ceiling type or ceiling type or embedded air conditioner. As the ceiling type air conditioner can save space and is more beautiful, it is widely used. The air outlet duct structure at the corner of the traditional ceiling type air conditioner has poor air induction capacity, resulting in a small final air volume. Summary of the invention

[0003] In view of this, one of the purposes of the present invention is to provide an air outlet duct structure, an air outlet panel and a ceiling-type air conditioner indoor unit to solve the problems of poor air induction capacity and small air volume existing in the prior art.

[0004] To achieve the above-mentioned purpose, on the one hand, the present invention adopts the following technical solution: an air outlet duct structure, comprising a first duct wall and a second duct wall arranged relatively to each other, an air outlet channel is formed between the first duct wall and the second duct wall, the first duct wall comprises a plurality of connected concave surfaces along the airflow direction, and the curvature radii of the plurality of concave surfaces decrease successively along the airflow direction.

[0005] Preferably, the plurality of concave curved surfaces include a first concave curved surface and a second concave curved surface, the curvature radius of the first concave curved surface is R1, the curvature radius of the second concave curved surface is R2,

[0006] The relationship between R1 and R2 is, R1 = k1*R2, 1.5≤k1≤2; and / or,

[0007] 150mm≤R1≤250mm, 50mm≤R2≤150mm.

[0008] Preferably, the second air duct wall includes a third concave surface arranged near the air outlet of the air outlet channel, and the curvature radius of the third concave surface is R,

[0009] The relationship between R and R2 is, R = k2*R2, 3≤k2≤4; and / or,

[0010] 150mm≤R≤550mm.

[0011] The air outlet duct structure provided by the present invention is designed with multiple connected concave surfaces on the first duct wall along the air flow direction, and the curvature radius of the multiple concave surfaces decreases successively along the air flow direction, thereby enhancing the wind-inducing capacity and achieving the purpose of increasing the air volume, while also allowing the air outlet duct structure to be flexibly handled.

[0012] On the other hand, the present invention adopts the following technical solution: an air outlet panel, comprising a panel body and a corner cover plate arranged at the corner of the panel body, an air outlet duct structure formed by the corner cover plate and the panel body, part of the side surface of the panel body forming a first duct wall, part of the side surface of the corner cover plate forming a second duct wall, and a corner air outlet of the air outlet panel is formed between the corner cover plate and the panel body.

[0013] Preferably, an end of the corner cover plate closer to the center of the air outlet panel is arranged closer to the center of the air outlet panel than an end of the panel body away from the center of the air outlet panel, or in the direction from the center of the air outlet panel to the outer edge of the air outlet panel, an end of the corner cover plate closer to the center of the air outlet panel is adjacent to an end of the panel body away from the center of the air outlet panel.

[0014] Preferably, the air outlet panel is an air outlet panel of a patio-type indoor unit, and the lowest point of the corner cover is arranged higher than the lowest point of the panel body.

[0015] Preferably, a flow guide structure is provided between the corner cover plate and the panel body.

[0016] Preferably, in the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the air guide structure partially overlaps with the panel body and / or the corner cover plate, or,

[0017] In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, one end of the guide structure close to the center of the air outlet panel is adjacent to one end of the panel body away from the center of the air outlet panel, and / or one end of the guide structure away from the center of the air outlet panel is adjacent to one end of the corner cover plate close to the center of the air outlet panel.

[0018] Preferably, in the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the size of the overlapping portion of the guide structure and the panel body is less than or equal to 2 mm; and / or,

[0019] In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the size of the overlapping portion of the air guide structure and the corner cover plate is less than or equal to 2 mm.

[0020] Preferably, the guide structure includes one guide plate or a plurality of guide plates arranged along the airflow direction.

[0021] Preferably, the guide plate is connected to the corner cover plate via a connecting portion; and / or,

[0022] A protruding structure is provided on the leeward side of the deflector; and / or,

[0023] The air outlet panel is an air outlet panel of an indoor unit of a ceiling-type air conditioner, and the angle between the guide plate and the horizontal plane is greater than or equal to 0° and less than 90°.

[0024] Preferably, the protrusion structure includes a plurality of strip-shaped protrusions.

[0025] In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, a plurality of strip-shaped protrusions are arranged at intervals from each other.

[0026] The air outlet duct structure provided by the present invention has a large air outlet volume.

[0027] On the other hand, the present invention adopts the following technical solution: a ceiling-type air conditioner indoor unit, including the above-mentioned air outlet panel.

[0028] The patio-type air conditioner indoor unit provided by the present invention has a large air output volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0030] Figure 1 The air outlet duct structure described in Example 1 is shown;

[0031] Figure 2 The air outlet panel described in Example 2 is shown.

[0032] Figure 3 Show Figure 2 A cross-sectional view of a portion of the structure of the wind outlet panel is shown;

[0033] Figure 4 The air outlet panel described in Example 3 is shown.

[0034] Figure 5 Show Figure 4 A cross-sectional view of a portion of the structure of the air outlet panel shown Figure 1 ;

[0035] Figure 6 Show Figure 4 A cross-sectional view of a portion of the structure of the air outlet panel shown Figure 2 ;

[0036] Figure 7 Show Figure 5 A schematic diagram of a portion of the structure shown;

[0037] Figure 8 The ceiling-type air conditioner indoor unit described in Example 4 is shown. DETAILED DESCRIPTION

[0038] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In order to avoid confusing the essence of the present invention, well-known methods, processes, procedures, and components are not described in detail.

[0039] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0040] Unless the context clearly requires otherwise, throughout the specification and claims, the words "include", "comprising" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to".

[0041] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0042] Example 1

[0043] like Figure 1 As shown, an air outlet duct structure includes a first air duct wall 110 and a second air duct wall 210 arranged opposite to each other, an air outlet channel 3 is formed between the first air duct wall 110 and the second air duct wall 210, and the first air duct wall 110 includes a plurality of connected concave surfaces along the airflow direction, and the curvature radii of the plurality of concave surfaces decrease successively along the airflow direction.

[0044] When the air outlet channel 3 is relatively deep, the first air duct wall 110 includes a plurality of connected concave surfaces along the airflow direction, so that the air outlet channel 3 can be flexibly processed to achieve the expected maximum air volume effect. In this embodiment, preferably, the plurality of concave surfaces include a first concave surface 111 and a second concave surface 112, the curvature radius of the first concave surface 111 is R1, and the curvature radius of the second concave surface 112 is R2.

[0045] R1 and R2 are tangent at the connection to form a smooth curved surface to avoid blocking the wind. Preferably, R1 and R2 satisfy the relationship: R1=k1*R2, 1.5≤k1≤2, k1 is preferably 2, so as to achieve better wind outlet effect, 150mm≤R1≤250mm, 50mm≤R2≤150mm, the central angle range of R1 is preferably 25°-45°, and the central angle range of R2 is preferably 25°-75°.

[0046] The second air duct wall 210 includes a third concave surface 211 arranged near the air outlet 310 of the air outlet channel 3, and the curvature radius of the third concave surface 211 is R. Preferably, R and R2 satisfy the relationship: R=k2*R2, 3≤k2≤4, k2 is preferably 4, 150mm≤R≤550mm, and the central angle range of R is 18°-66°. The third concave surface 211 can not only reduce the obstruction to the wind flowing out of the air outlet, reduce wind resistance, and increase air volume, but also be more beautiful. Experimental tests have shown that when there are no other abnormalities, such as condensation at the air outlet, the size of the third concave surface 211 reaches the maximum, and the air volume will reach the maximum value. The verification data is approximately: for every 5mm reduction in the size of a single air outlet, the air volume of a single air outlet is reduced by 7m 3 / h, when the radius of curvature is 150mm, the central angle is 66°, and when the radius of curvature is 550mm, the central angle is 18°. In actual use, the data will vary depending on the size of the indoor unit of the ceiling-type air conditioner.

[0047] When wind flows in from the air inlet of the air outlet channel 3, part of the inflowing wind flows toward the third concave surface 211 under the obstruction of the second concave surface 112, and the wind flowing toward the third concave surface 211 can cool the third concave surface 211 to avoid condensation.

[0048] Example 2

[0049] like Figure 2 , Figure 3 As shown, an air outlet panel includes a panel body 1 and a corner cover plate 2 arranged at the corner of the panel body 1, the corner cover plate 2 and the panel body 1 constitute the air outlet duct structure, part of the side surface of the panel body 1 constitutes the first duct wall 110, part of the side surface of the corner cover plate 2 constitutes the second duct wall 210, and a corner air outlet of the air outlet panel is formed between the corner cover plate 2 and the panel body 1.

[0050] An end 21 of the corner cover plate 2 close to the center of the air outlet panel is arranged closer to the center of the air outlet panel than an end 11 of the panel body 1 away from the center of the air outlet panel, or in the direction from the center of the air outlet panel to the outer edge of the air outlet panel, an end 21 of the corner cover plate 2 close to the center of the air outlet panel is adjacent to an end 11 of the panel body 1 away from the center of the air outlet panel. In this way, it can be ensured that the airflow passes through the guiding effect of the panel body 1 and then flows out from the corner air outlet, thereby effectively avoiding the condensation problem (therefore, when the end 21 of the corner cover plate 2 close to the center of the air outlet panel is not adjacent to the end 11 of the panel body 1 away from the center of the air outlet panel, but there is a gap between them, a part of the airflow will flow out directly from the gap. The larger the gap, the smaller the guiding effect, the less airflow passes through the corner cover plate 2, and the easier it is for condensation to occur).

[0051] Example 3

[0052] like Figure 4 and Figure 5 As shown, in order to further expand the size of the air outlet of the air outlet channel 3 on the basis of Example 1, a guide structure 4 is provided between the corner cover plate 2 and the panel body 1 .

[0053] Wherein, in the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the air guide structure 4 partially overlaps with the panel body 1 and / or the corner cover plate 2, or,

[0054] In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, an end 41 of the guide structure 4 close to the center of the air outlet panel is adjacent to an end 11 of the panel body 1 away from the center of the air outlet panel, and / or, an end 42 of the guide structure 4 away from the center of the air outlet panel is adjacent to an end 21 of the corner cover plate 2 close to the center of the air outlet panel. The above-mentioned design method can avoid the failure to achieve the desired effect due to air leakage.

[0055] Preferably, in the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the size of the overlapping portion of the air guide structure 4 and the panel body 1 is less than or equal to 2 mm; and / or,

[0056] In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the size of the overlapping part of the guide structure 4 and the corner cover plate 2 is less than or equal to 2 mm. The above design method can avoid the problem of excessive wind resistance and small air volume due to excessive overlap of area.

[0057] The specific structure of the flow guide structure 4 is as follows:

[0058] The guide structure 4 includes a guide plate or a plurality of guide plates arranged along the airflow direction.

[0059] like Figure 5 , Figure 7 As shown, when the number of deflectors is one, both ends of the deflector are connected to the corner cover plate 2 through a connecting portion, and the connecting portion can be, for example, a connecting plate. A protruding structure 410 is provided on the side of the leeward side of the deflector. The air outlet panel is the air outlet panel of the indoor unit of the ceiling-type air conditioner. The angle between the deflector and the horizontal plane is greater than or equal to 0° and less than 90°. The protruding structure 410 includes a plurality of strip-shaped protrusions. In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the plurality of strip-shaped protrusions 410 are arranged at intervals from each other. The effect of the protruding structure 410 can prevent the side of the leeward side of the deflector from generating condensation due to low wind speed.

[0060] like Figure 6 As shown, when the number of guide plates is two or more, the projection of each guide plate along the wind direction is continuous, both ends of each guide plate are connected to the corner cover plate 2 through a connecting portion, and the angle between each guide plate and the horizontal plane is greater than or equal to 0° and less than 90°.

[0061] When all guide plates are arranged, their spacing must meet the following relationship requirements: h = H / (n+1), where h is the spacing between two adjacent guide plates, H is the size of the air outlet, and n is the number of guide plates.

[0062] After adding the guide structure 4, the size H of the air outlet can be made larger, thereby increasing the air outlet area. When the wind in the air outlet channel 3 flows toward the air outlet,

[0063] The wind will first pass through the guide structure 4 , with a portion of the wind changing its direction by the guide structure 4 and flowing toward the third concave surface 211 , and another portion of the wind will flow around to the leeward side of the guide structure 4 and then flow out after passing through the leeward side.

[0064] Preferably, the air outlet panel is the air outlet panel of a ceiling-type indoor unit, and the lowest point of the corner cover 2 is set higher than the lowest point of the panel body 1, thereby effectively avoiding condensation problems (because if the two are flush or the lowest point of the corner cover 2 is set lower than the lowest point of the panel body 1, the wind will come out directly from the air duct, and the guide structures of the two will not work).

[0065] Example 4

[0066] like Figure 8 As shown, a ceiling-type air conditioner indoor unit includes the above-mentioned air outlet panel.

[0067] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0068] It should be understood that the above-mentioned embodiments are merely illustrative and not restrictive. Without departing from the basic principles of the present invention, various obvious or equivalent modifications or substitutions that can be made by those skilled in the art to the above-mentioned details will all be included in the scope of the claims of the present invention.

Claims

1. An air outlet panel, characterized in that: The invention comprises a panel body (1) and a corner cover plate (2) arranged at a corner of the panel body (1), wherein the corner cover plate (2) and the panel body (1) form an air outlet duct structure, wherein the air outlet duct structure comprises a first air duct wall (110) and a second air duct wall (210) arranged opposite to each other, wherein an air outlet channel (3) is formed between the first air duct wall (110) and the second air duct wall (210), wherein the first air duct wall (110) comprises a plurality of concave curved surfaces connected to each other along an air flow direction, wherein the curvature radii of the plurality of concave curved surfaces decrease sequentially along the air flow direction; Part of the side surface of the panel body (1) constitutes the first air duct wall (110), and part of the side surface of the corner cover plate (2) constitutes the second air duct wall (210), and a corner air outlet of the air outlet panel is formed between the corner cover plate (2) and the panel body (1); A flow guide structure (4) is provided between the corner cover plate (2) and the panel body (1); the flow guide structure (4) comprises a flow guide plate or a plurality of flow guide plates arranged along the airflow direction; a protrusion structure (410) is provided on the side surface of the leeward side of the flow guide plate, and the protrusion structure (410) comprises a plurality of strip-shaped protrusions.

2. The air outlet panel according to claim 1, characterized in that: An end (21) of the corner cover plate (2) close to the center of the air outlet panel is arranged closer to the center of the air outlet panel than an end (11) of the panel body (1) far from the center of the air outlet panel; or, In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, an end (21) of the corner cover plate (2) close to the center of the air outlet panel is adjacent to an end (11) of the panel body (1) away from the center of the air outlet panel.

3. The air outlet panel according to claim 1, characterized in that: The air outlet panel is an air outlet panel of a ceiling-type indoor unit, and the lowest point of the corner cover plate (2) is arranged to be higher than the lowest point of the panel body (1).

4. The air outlet panel according to claim 1, characterized in that: In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the air guide structure (4) partially overlaps with the panel body (1) and / or the corner cover plate (2); or, In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, an end (41) of the guide structure (4) close to the center of the air outlet panel is adjacent to an end (11) of the panel body (1) away from the center of the air outlet panel, and / or an end (42) of the guide structure (4) away from the center of the air outlet panel is adjacent to an end (21) of the corner cover plate (2) close to the center of the air outlet panel.

5. The air outlet panel according to claim 4, characterized in that: In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the size of the portion where the air guide structure (4) overlaps with the panel body (1) is less than or equal to 2 mm; and / or, In the direction from the center of the air outlet panel to the outer edge of the air outlet panel, the size of the portion where the air guide structure (4) overlaps with the corner cover plate (2) is less than or equal to 2 mm.

6. The air outlet panel according to claim 1, characterized in that: In a direction from the center of the air outlet panel to the outer edge of the air outlet panel, a plurality of strip-shaped protrusions are arranged at intervals from each other.

7. The air outlet panel according to claim 1, characterized in that: The multiple concave curved surfaces include a first concave curved surface (111) and a second concave curved surface (112), the first concave curved surface (111) has a curvature radius of R1, and the second concave curved surface (112) has a curvature radius of R2. The relationship between R1 and R2 is, R1=k1*R2, 1.5≤k1≤2; and / or, 150mm≤R1≤250mm, 50mm≤R2≤150mm.

8. The air outlet panel according to claim 7, characterized in that: The second air duct wall (210) comprises a third concave surface (211) arranged close to the air outlet of the air outlet channel (3), the curvature radius of the third concave surface (211) being R, The relationship between R and R2 is, R=k2*R2, 3≤k2≤4; and / or, 150mm≤R≤550mm.

9. A patio-type air conditioner indoor unit, characterized in that: It comprises the air outlet panel as claimed in any one of claims 1 to 8.

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