Airflow guide structure, indoor unit and air conditioner

Abstract

The utility model discloses a kind of flow guide structure, indoor unit and air conditioner, the flow guide structure is set between the air inlet of indoor unit and indoor heat exchanger, flow guide structure includes multiple flow guide vane spaced distribution each other along the width direction of indoor heat exchanger, the side of flow guide vane close to air inlet is provided with multiple flow guide teeth, multiple flow guide teeth are spaced setting each other along the length direction of flow guide vane, flow guide tooth is all set in the end of flow guide vane close to indoor heat exchanger;The utility model sets flow guide tooth in the end of flow guide vane close to heat exchanger, make airflow after passing through flow guide structure rectification, can make the airflow to indoor heat exchanger evenly distributed on the surface of indoor heat exchanger, avoid due to uneven airflow distribution on the surface of indoor heat exchanger caused air duct noise.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, and in particular to a flow guiding structure, an indoor unit, and an air conditioner. Background Technology

[0002] Ceiling-mounted air conditioners are favored by users due to their advantages of low noise and good cooling and heating effects. Because of these characteristics, there is an increasing demand for small ceiling-mounted air conditioners, which are being installed in living rooms and bedrooms in homes, rather than in supermarkets. As a result, more and more single-sided ceiling-mounted products are being promoted in the market. However, in existing ceiling-mounted air conditioners, the airflow is unevenly distributed on the surface of the heat exchanger when it enters the ceiling-mounted air conditioner, resulting in excessive noise in the air duct and affecting the user's practical experience. Utility Model Content

[0003] The main objective of this utility model embodiment is to provide a flow guiding structure, an indoor unit, and an air conditioner, aiming to improve the technical problem of uneven airflow distribution on the surface of the heat exchanger of a ceiling-mounted air conditioner in the prior art.

[0004] An embodiment of this utility model provides a flow guiding structure disposed between the air inlet of the indoor unit and the indoor heat exchanger. The flow guiding structure includes a plurality of flow guiding vanes spaced apart from each other along the width direction of the indoor heat exchanger. A plurality of flow guiding teeth are provided on the side of the flow guiding vane near the air inlet. The plurality of flow guiding teeth are spaced apart from each other along the length direction of the flow guiding vane. The flow guiding teeth are all disposed at the end of the flow guiding vane near the indoor heat exchanger.

[0005] In some embodiments of this utility model, the guide plate includes at least a first arcuate surface and a flat surface connected in sequence, the flat surface is connected to the end of the first arcuate surface away from the air inlet, and the guide teeth are disposed at the end of the flat surface away from the first arcuate surface.

[0006] In some embodiments of this utility model, the center of the first arc-shaped surface is located on the side of the guide vane near the air inlet.

[0007] In some embodiments of this utility model, the guide plate further includes a second arcuate portion, which is connected to the end of the first arcuate portion away from the flat portion, and the center of the second arcuate portion is located on the side of the guide plate away from the air inlet.

[0008] In some embodiments of this utility model, the central angle of the second arcuate surface is greater than or equal to 180° and less than 270°.

[0009] In some embodiments of this invention, the radius of the first arcuate surface is greater than the radius of the second arcuate surface.

[0010] In some embodiments of this utility model, the plurality of guide vanes are arranged at equal intervals.

[0011] In some embodiments of this utility model, the flow guiding structure further includes a support frame, and a plurality of flow guiding plates are connected to the support frame at intervals along the height direction of the support frame.

[0012] In some embodiments of this utility model, an indoor unit is also provided, including the above-described airflow guiding structure.

[0013] In some embodiments of this utility model, this utility model also provides an air conditioner, which includes the above-described indoor unit.

[0014] An embodiment of this utility model provides a flow guiding structure, an indoor unit, and an air conditioner. The flow guiding structure is disposed between the air inlet of the indoor unit and the indoor heat exchanger. It is provided with multiple flow guiding vanes spaced apart from each other along the width direction of the indoor heat exchanger, and flow guiding teeth are provided at the end of the flow guiding vanes near the heat exchanger. This allows the airflow to be rectified after passing through the flow guiding structure, so that the airflow to the indoor heat exchanger is evenly distributed on the surface of the indoor heat exchanger, avoiding duct noise caused by uneven airflow distribution on the surface of the indoor heat exchanger. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a flow guide plate according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram showing the relationship between the guide vane and the turbulence teeth in one embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram showing the positional relationship between the flow guiding structure and the indoor heat exchanger in one embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of an indoor unit according to an embodiment of the present invention.

[0020] Reference numerals: 10, airflow guiding structure; 20, cross-flow fan; 30, indoor heat exchanger; 51, air inlet; 52, air outlet; 60, indoor unit casing; 100, airflow guide vane; 110, first arcuate section; 120, second arcuate section; 130, flat section; 140, airflow guide teeth. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] like Figures 1-4As shown, this utility model provides a flow guiding structure 10, which is disposed between the air inlet 51 of the indoor unit and the indoor heat exchanger 30. The flow guiding structure 10 includes a plurality of flow guiding plates 100 that are spaced apart from each other along the width direction of the indoor heat exchanger 30. A plurality of flow guiding teeth 140 are provided on the side of the flow guiding plate 100 near the air inlet 51. The plurality of flow guiding teeth 140 are spaced apart from each other along the length direction of the flow guiding plate 100. The flow guiding teeth 140 are all disposed at the end of the flow guiding plate 100 near the indoor heat exchanger 30.

[0026] The indoor unit typically includes an air outlet 52 and an air inlet 51. A cross-flow fan 20 is installed between the air outlet 52 and the air inlet 51 to draw air in from the air inlet 51 and discharge it from the air outlet 52. An indoor heat exchanger 30 is installed between the cross-flow fan 20 and the air inlet 51 to exchange heat with the air drawn in from the air inlet 51 so that the air flowing out from the air outlet 52 reaches a preset temperature. However, because the air enters the indoor unit directly from the air inlet 51, the airflow cannot be evenly distributed on the surface of the indoor heat exchanger 30, resulting in relatively loud duct noise.

[0027] In this application, the guide vanes 100 are arranged at intervals along the width direction of the indoor heat exchanger 30, so that the rectification effect of the guide vanes 100 covers the side of the indoor heat exchanger 30 facing the air inlet 51, thereby ensuring that the rectification effect of the guide structure 10 can cover the surface of the indoor heat exchanger 30.

[0028] The air guide plate 100 can be directly connected to the indoor unit housing 60, or it can be fixed together with a bracket and then fixed in the indoor unit housing 60 by the bracket.

[0029] Multiple guide teeth 140 are arranged along the length of the guide vane 100, that is, multiple guide teeth 140 are also arranged along the length of the indoor heat exchanger 30, so that the airflow passing through the guide vane 100 can be rectified, and the airflow is evenly distributed along the length of the indoor heat exchanger 30.

[0030] It is understood that the airflow guiding structure 10 is located between the air inlet 51 of the indoor unit and the indoor heat exchanger 30. By setting multiple airflow guiding vanes 100 spaced apart from each other along the width direction of the indoor heat exchanger 30, and setting airflow guiding teeth 140 at the end of the airflow guiding vane 10 close to the heat exchanger, the airflow is rectified after passing through the airflow guiding structure 10, which can make the airflow flowing to the indoor heat exchanger 30 evenly distributed on the surface of the indoor heat exchanger 30, and avoid the duct noise caused by uneven airflow distribution on the surface of the indoor heat exchanger 30.

[0031] The indoor unit is a single-sided ceiling unit.

[0032] In some embodiments, the height of the guide tooth 140 gradually increases from one end near the first arcuate surface 110 to the end away from the first arcuate surface 110, thereby gradually improving the rectification effect on the airflow along the airflow direction.

[0033] In some embodiments, the guide vane 100 includes at least a first arcuate portion 110 and a flat portion 130 connected in sequence, the flat portion 130 being connected to the end of the first arcuate portion 110 away from the air inlet 51, and the guide teeth 140 being disposed at the end of the flat portion 130 away from the first arcuate portion 110.

[0034] The first arc-shaped portion 110 is positioned closer to the air inlet 51 than the flat portion 130, which guides the airflow, allowing it to move along the guide vane 100 and thus facilitate its passage through the guide teeth 140. Simultaneously, the flat portion 130 allows for better installation of the guide teeth 140, ensuring that the airflow passes smoothly through them for rectification and uniform airflow distribution on the surface of the indoor heat exchanger 30.

[0035] The flat portion 130 can better guide the airflow after it has been guided by the first arc-shaped portion 110, allowing it to continue flowing along the guide vane 100 and then be rectified by the guide teeth 140.

[0036] In some embodiments, the guide vane 100 includes only a first arcuate portion 110, and the guide teeth 140 are disposed at one end of the first arcuate portion 110 near the indoor heat exchanger 30.

[0037] In some embodiments, the center of the first arcuate portion 110 is located on the side of the guide vane 100 near the air inlet 51.

[0038] When the center of the first arc surface 110 is located on the side of the guide vane 100 near the air inlet 51, the opening of the first arc surface 110 faces downwards. The first arc surface 110 can guide the condensate dripping from the indoor heat exchanger 30 onto the guide vane 100 or the condensate condensed on the guide vane 100 to the water collection tray of the indoor unit.

[0039] In some embodiments, the guide vane 100 further includes a second arcuate portion 120, which is connected to the end of the first arcuate portion 110 away from the planar portion 130. The center of the second arcuate portion 120 is located on the side of the guide vane 100 opposite to the air inlet 51.

[0040] It is understandable that by setting the second arcuate portion 120 at the end of the first arcuate portion 110 away from the flat portion 130 and making its opening face upward, a groove-shaped structure with the opening facing upward is formed, which can collect the condensate water that condenses on the guide plate 100 or drips onto the guide plate 100, and prevent it from dripping into areas other than the water receiving tray.

[0041] In some embodiments, the central angle of the second arcuate portion 120 is greater than or equal to 180° and less than or equal to 270°.

[0042] Specifically, the central angle of the second arc-shaped surface 120 is limited to greater than or equal to 180° in order to ensure that the groove structure formed by the second arc-shaped surface 120 has a large volume, thereby having a large water capacity; while the central angle of the second arc-shaped surface 120 is limited to less than or equal to 270° in order to ensure that the groove width of the second arc-shaped surface 120 is not too small, so that the condensate of the indoor heat exchanger 30 can drip from the groove opening into the groove structure formed by the second arc-shaped surface 120.

[0043] In some embodiments, the radius of the first arcuate portion 110 is greater than the radius of the second arcuate portion 120.

[0044] The main purpose of the guide vane 100 is to rectify and guide the airflow. Therefore, the radius of the second arc surface 120 should not be too large to avoid affecting the overall rectification effect of the guide vane 100.

[0045] In some embodiments, a plurality of guide vanes 100 are arranged at equal intervals.

[0046] It is understandable that the multiple guide vanes 100 are arranged at equal intervals to each other, so that the guide structure 10 can uniformly rectify the airflow entering the indoor unit and distribute the airflow evenly on the surface of the indoor heat exchanger 30.

[0047] In some embodiments, the flow guiding structure 10 further includes a support frame, and a plurality of flow guiding plates 100 are spaced apart from each other on the support frame along the height direction of the support frame.

[0048] The support frame fixes the multiple guide vanes 100 relatively and facilitates installation. When the guide structure 10 needs to be replaced, the support frame can be removed directly to replace a single guide vane 100 or the entire guide structure 10.

[0049] The support frame and the indoor unit housing 60 can be connected by one of several detachable methods, such as screw connection, snap connection, or plug connection.

[0050] Specifically, the support frame includes a first support rod and a second support rod arranged opposite to each other. The two ends of the guide vane 100 are respectively connected to the first support rod and the second support rod. A plurality of guide vanes 100 are arranged at intervals between the first support rod and the second support rod along the length direction of the first support rod.

[0051] In some embodiments, the guide vane 100 is detachably connected to the support frame. Specifically, the guide vane 100 and the support frame are connected by one of the following methods: screw connection, plug-in connection, snap-fit ​​connection, etc.

[0052] In some embodiments, an indoor unit is also provided, which includes the above-described airflow guiding structure 10. Since the indoor unit includes some or all of the above-described airflow guiding structure 10, the indoor unit has the beneficial effects of some or all of the above-described embodiments, which will not be described in detail here.

[0053] The indoor unit generally includes an indoor unit housing 60, which has an air inlet 51, a accommodating cavity, and an air outlet 52 connected in sequence. A cross-flow fan 20 and an indoor heat exchanger 30 are arranged in the accommodating cavity. The cross-flow fan 20 is arranged on the side of the indoor heat exchanger 30 near the air outlet 52, and the air guiding structure 10 is arranged on the side of the indoor heat exchanger 30 near the air inlet 51.

[0054] Each guide vane 100 is at the same distance from the indoor heat exchanger 30 to ensure that the airflow can be evenly distributed on the surface of the indoor heat exchanger 30 after passing through the guide structure 10.

[0055] In some embodiments, the present invention also provides an air conditioner that includes the above-described indoor unit. Since the air conditioner includes the above-described indoor unit, that is, includes some or all of the embodiments of the above-described airflow guiding structure 10, the air conditioner has the beneficial effects of some or all of the embodiments of the above-described airflow guiding structure 10, which will not be described in detail here.

[0056] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made based on the contents of the present utility model specification and drawings under the application concept of the present utility model, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A flow guiding structure, disposed between the air inlet of the indoor unit and the indoor heat exchanger, characterized in that, The flow guiding structure includes multiple flow guiding vanes that are spaced apart from each other along the width direction of the indoor heat exchanger. Multiple flow guiding teeth are provided on the side of the flow guiding vane near the air inlet. The multiple flow guiding teeth are spaced apart from each other along the length direction of the flow guiding vane. The flow guiding teeth are all located at the end of the flow guiding vane near the indoor heat exchanger.

2. The flow guiding structure according to claim 1, characterized in that, The guide vane includes at least a first arcuate portion and a flat portion connected in sequence, the flat portion being connected to the end of the first arcuate portion away from the air inlet, and the guide teeth being disposed at the end of the flat portion away from the first arcuate portion.

3. The flow guiding structure according to claim 2, characterized in that, The center of the first arc-shaped surface is located on the side of the guide vane near the air inlet.

4. The flow guiding structure according to claim 3, characterized in that, The air guide plate also includes a second arc-shaped portion, which is connected to the end of the first arc-shaped portion away from the flat portion, and the center of the second arc-shaped portion is located on the side of the air guide plate away from the air inlet.

5. The flow guiding structure according to claim 4, characterized in that, The central angle of the second arc-shaped surface is greater than or equal to 180° and less than 270°.

6. The flow guiding structure according to claim 4, characterized in that, The radius of the first arcuate surface is greater than the radius of the second arcuate surface.

7. The flow guiding structure according to claim 1, characterized in that, The multiple guide vanes are arranged at equal intervals.

8. The flow guiding structure according to any one of claims 1-7, characterized in that, The flow guiding structure also includes a support frame, and a plurality of flow guiding plates are connected to the support frame at intervals along the height direction of the support frame.

9. An indoor unit, characterized in that, Includes the flow guiding structure as described in any one of claims 1-8.

10. An air conditioner, characterized in that, Including the indoor unit as described in claim 9.

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