Air outlet grille for air conditioner and air conditioner indoor unit

Abstract

This utility model provides an air outlet grille for an air conditioner and an indoor unit for the air conditioner. The air outlet grille includes a first grille plate, a second grille plate, and multiple intermediate grille plates. The first grille plate has a first air inlet section, a first connecting section, and a first air outlet section connected in sequence. The first air outlet section is angled to the first air inlet section. The second grille plate has a second air inlet section, a second connecting section, and a second air outlet section connected in sequence. The second air outlet section is angled to the second air inlet section. The second grille plate is disposed on one side of the first grille plate. The included angle between the two opposing surfaces of the first and second air inlet sections is within 10°. The included angle between the two opposing surfaces of the first and second air outlet sections is within 10°. Multiple intermediate grille plates are sequentially and spaced apart between the first and second grille plates. In this embodiment, the air outlet grille can change the airflow direction and blow it forward.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an air outlet grille for an air conditioner and an indoor unit for an air conditioner. Background Technology

[0002] To maintain a consistent appearance on the front of the indoor unit, the air outlets are located on both sides of the unit's casing. This side placement increases the airflow angle, achieving ultra-wide-angle airflow. However, when the indoor unit needs to blow air forward, the forward airflow is less effective, resulting in suboptimal temperature control and negatively impacting the user experience. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide an air outlet grille and indoor unit for an air conditioner that overcomes or at least partially solves the above problems, and solves the problem that the air blowing effect of the indoor unit of the air conditioner with the air outlet set on both sides of the casing is not ideal, giving users a better user experience.

[0004] Specifically, this utility model provides an air outlet grille for an air conditioner, comprising:

[0005] The first grille has a first air inlet plate, a first connecting plate, and a first air outlet plate connected in sequence; the first air outlet plate is connected to the air outlet side edge of the first connecting plate, and the first air outlet plate is set at an angle to the first air inlet plate.

[0006] The second grille has a second air inlet plate, a second connecting plate, and a second air outlet plate connected in sequence. The second air outlet plate is connected to the air outlet side edge of the second connecting plate, and the second air outlet plate is angled to the second air inlet plate. The second grille is disposed on one side of the first grille, and the second air outlet plate extends from the second connecting plate toward the first grille, while the first air outlet plate extends from the first connecting plate toward the direction away from the second grille. The included angle between the two opposing surfaces of the first and second air inlet plates is within 10°. The included angle between the two opposing surfaces of the first and second air outlet plates is within 10°.

[0007] Multiple intermediate grille plates are sequentially and spaced apart between the first grille plate and the second grille plate. Each intermediate grille plate has an intermediate air inlet plate, an intermediate connecting plate, and an intermediate air outlet plate connected in sequence. The intermediate air outlet plate is connected to the air outlet side edge of the intermediate connecting plate, and the intermediate air outlet plate is set at an angle to the intermediate air inlet plate. The air inlet side edge of each intermediate air inlet plate is spaced apart from a first reference surface, and the first reference surface is the plane containing the air inlet side edges of the first air inlet plate and the air inlet side edges of the second air inlet plate.

[0008] Optionally, the surface of each of the intermediate air inlet plates facing the first air inlet plate is parallel to the surface of the second air inlet plate facing the first air inlet plate.

[0009] The surface of each of the intermediate air inlet plates facing the second air inlet plate is parallel to the surface of the first air inlet plate facing the second air inlet plate.

[0010] The surface of each of the intermediate air outlet panels facing the first air outlet panel is parallel to the surface of the second air outlet panel facing the first air outlet panel.

[0011] The surface of each of the intermediate air outlet sections facing the second air outlet section is parallel to the surface of the first air outlet section facing the second air outlet section.

[0012] Optionally, the included angle between the two opposing surfaces of the first air inlet plate and the second air inlet plate is within 3°; along the airflow direction, the width between the two opposing surfaces of the first air inlet plate and the second air inlet plate gradually decreases.

[0013] The two opposing surfaces of the first air outlet plate and the second air outlet plate are parallel.

[0014] Optionally, along the direction from the second air inlet plate to the first air inlet plate, the distance between the air inlet side edge of the intermediate air inlet plate and the first reference surface gradually increases;

[0015] Along the direction from the second air inlet plate to the first air inlet plate, the width of the middle air inlet plate gradually decreases;

[0016] The width of the first air inlet plate is smaller than the width of the second air inlet plate.

[0017] The structures of the multiple intermediate connecting parts are identical, and the structures of the multiple intermediate air outlet plates are identical.

[0018] Optionally, the surface of the first connecting portion facing the second grid plate is a first arc surface;

[0019] The surface of the second connecting part facing the first grid plate is a second arc surface;

[0020] The surface of the intermediate connecting part facing the first grid plate is a third arc surface;

[0021] The surface of the intermediate connecting part facing the second grid plate is a fourth arc surface;

[0022] The radius of the fourth arc surface is equal to the radius of the first arc surface;

[0023] The ratio between the radius of the third arc surface and the radius of the second arc surface is 9 / 25 to 14 / 25.

[0024] Optionally, the angle between the plane containing the air inlet side edges of the plurality of intermediate air inlets and the first reference plane is 8° to 12°;

[0025] The first air outlet plate, the second air outlet plate, and the intermediate air outlet plate define a plurality of air outlet channels. Along the direction from the second air inlet plate to the first air inlet plate, the width of the air outlet channels gradually increases; the ratio between the widths of any two adjacent air outlet channels is 7 / 10 to 9 / 10.

[0026] In the air outlet side edges of the first air outlet plate, the second air outlet plate, and the intermediate air outlet plate, the plane containing every two adjacent air outlet side edges is a second reference plane. Along the direction from the second air inlet plate to the first air inlet plate, the angle between the second reference plane and the first reference plane gradually increases; the angle between the first second reference plane and the last second reference plane is 2° to 8°.

[0027] In the air outlet side edges of the first air outlet plate, the second air outlet plate, and the intermediate air outlet plate, the distance between the air outlet side edge and the first reference surface gradually decreases along the direction from the second air inlet plate to the first air inlet plate.

[0028] Optionally, the second grating is arranged vertically, and a water guide rib is provided at the lower end of the surface of the second grating away from the first grating. One end of the water guide rib near the air inlet side edge of the second grating is lower than the other end of the water guide rib.

[0029] This utility model also provides an indoor unit for an air conditioner, comprising:

[0030] The housing has a first air outlet and a second air outlet; both the first air outlet and the second air outlet extend vertically, the first air outlet is located on one side wall of the housing, and the second air outlet is located on the other side wall of the housing;

[0031] As described in any of the above, there are two air outlet grilles, one of which is rotatably disposed at the first air outlet, and the other of which is rotatably disposed at the second air outlet.

[0032] Optionally, the housing is provided with an air duct, the air duct having a main air duct section, and a first air duct section and a second air duct section connected to the front end of the main air duct section; the first air duct section is connected to the first air outlet, and the second air duct section is connected to the second air outlet;

[0033] The rear duct wall of the first air duct section is provided with a first recessed groove for the rotation of the corresponding air outlet grille; the rear duct wall of the second air duct section is provided with a second recessed groove for the rotation of the corresponding air outlet grille.

[0034] Optionally, the main air duct section includes a first air duct wall and a second air duct wall disposed opposite to each other; the first air duct section is connected to the first air duct wall, and the second air duct section is connected to the second air duct wall; the second air duct wall is configured such that the flow direction of the airflow in the main air duct section is towards the side of the housing having the first air outlet; the angle of change of the flow direction of the airflow from the main air duct section under the action of the second air duct section is greater than the angle of change under the action of the first air duct section;

[0035] A diversion device is provided at the front end of the main air duct section, and the diversion device includes:

[0036] The first air distribution plate is curved; a portion of the first air distribution plate is located within the main air duct section, and another portion is located within the second air duct section; the surface of the first air distribution plate facing the second air duct wall is a concave surface.

[0037] The second air distribution plate is curved; the second air distribution plate is located on the side of the first air distribution plate away from the second air duct wall, and the surface of the second air distribution plate facing the first air distribution plate is a concave surface; the curvature of the first air distribution plate is greater than that of the second air distribution plate; the second air distribution plate is located within the main air duct section, and the air outlet edge of the second air distribution plate is close to the connection between the front air duct wall of the first air duct section and the front air duct wall of the second air duct section.

[0038] In this utility model, the air outlet grille for an air conditioner and the indoor unit of the air conditioner allow airflow to enter from the air inlet side edges of the first air inlet plate, the second air inlet plate, and multiple intermediate air inlet plates of the air outlet grille. The airflow is then guided and its direction is changed by the first air outlet plate, the second air outlet plate, and the intermediate air outlet plates. For indoor units with air outlets on both sides, compared to existing technologies where the air outlet grille primarily guides airflow laterally, this embodiment allows the air outlet grille to change the angle of airflow, enabling it to blow air both forward and laterally. Therefore, when an indoor unit with air outlets on both sides needs to blow air forward, the air outlet grille in this embodiment increases the forward airflow capability, resulting in better forward airflow, improved temperature control, and a better user experience.

[0039] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0040] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0041] Figure 1 This is a schematic structural diagram of the air vent grille in existing technology;

[0042] Figure 2 This is a schematic structural diagram of an air outlet grille according to an embodiment of the present utility model;

[0043] Figure 3 This is a partial enlarged view of the air outlet grille according to an embodiment of the present utility model;

[0044] Figure 4 This is a cross-sectional view of the air outlet grille according to an embodiment of the present utility model;

[0045] Figure 5 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model;

[0046] Figure 6 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model. Detailed Implementation

[0047] The following reference Figures 2 to 6This invention describes an air outlet grille and an indoor unit for an air conditioner, according to embodiments of the present invention. In this description, it should be understood that 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0048] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" 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 mechanical connection or an electrical connection; 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, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. 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.

[0051] Figure 2This is a schematic structural diagram of an air outlet grille 200 according to an embodiment of the present utility model. Figure 2 As shown, and with reference Figures 2 to 6 This utility model provides an air outlet grille 200 for an air conditioner, including a first grille plate 210, a second grille plate 220, and a plurality of intermediate grille plates 230. The first grille plate 210 has a first air inlet plate portion 211, a first connecting portion 212, and a first air outlet plate portion 213 connected in sequence. The first air outlet plate portion 213 is connected to the air outlet side edge of the first connecting portion 212, and the first air outlet plate portion 213 is angled to the first air inlet plate portion 211. The second grille plate 220 has a second air inlet plate portion 221, a second connecting portion 222, and a second air outlet plate portion 223 connected in sequence. The second air outlet plate portion 223 is connected to the air outlet side edge of the second connecting portion 222, and the second air outlet plate portion 223 is angled to the second air inlet plate portion 221. The second grille 220 is disposed on one side of the first grille 210, and the second air outlet portion 223 extends from the second connecting portion 222 toward the first grille 210, while the first air outlet portion 213 extends from the first connecting portion 212 toward the direction away from the second grille 220. The included angle between the two opposing surfaces of the first air inlet portion 211 and the second air inlet portion 221 is within 10°. The included angle between the two opposing surfaces of the first air outlet portion 213 and the second air outlet portion 223 is within 10°. A plurality of intermediate grilles 230 are sequentially and spaced apart between the first grille 210 and the second grille 220, and each intermediate grille 230 has an intermediate air inlet portion 231, an intermediate connecting portion 232, and an intermediate air outlet portion 233 connected in sequence. The intermediate air outlet portion 233 is connected to the air outlet side edge of the intermediate connecting portion 232, and the intermediate air outlet portion 233 is angled to the intermediate air inlet portion 231. Each intermediate air inlet plate 231 has its air inlet side edge spaced apart from a first reference surface, the first reference surface being the plane containing the air inlet side edges of the first air inlet plate 211 and the second air inlet plate 221.

[0052] Airflow flows through the airflow channel formed between the first grille plate 210 and the second grille plate 220. The first air outlet plate 213 is angled relative to the first air inlet plate 211, and the second air outlet plate 223 is angled relative to the second air inlet plate 221. The second air outlet plate 223 extends from the second connecting portion 222 toward the first grille plate 210, allowing the airflow passing through the first air outlet plate 213 and the second air outlet plate 223 to change direction. The intermediate air outlet plate 233 is angled relative to the intermediate air inlet plate 231, allowing the airflow passing through multiple intermediate air outlet plates 233 to change direction. The included angle between the two opposing surfaces of the first air inlet plate 211 and the second air inlet plate 221 is within 10°. Preferably, along the airflow direction, the airflow channel formed between the first air inlet plate 211 and the second air inlet plate 221 is a gradually narrowing channel, which facilitates both airflow entry and increases airflow velocity. The included angle between the two opposing surfaces of the first air outlet plate 213 and the second air outlet plate 223 is within 10°, and the airflow channel formed between the first air outlet plate 213 and the second air outlet plate 223 can be either narrowed or gradually widened.

[0053] Airflow enters from the air inlet side edge of the first air inlet plate 211, the air inlet side edge of the second air inlet plate 221, and the air inlet side edges of the plurality of intermediate air inlet plates 231 of the air outlet grille 200, and is guided and its direction is changed by the first air outlet plate 213, the second air outlet plate 223, and the intermediate air outlet plates 233. For an indoor unit of an air conditioner with air outlets on both sides, compared to... Figure 1 In the prior art shown, the air outlet grille 200 guides airflow primarily horizontally. In this embodiment, the air outlet grille 200 can change the angle of airflow, allowing the airflow to blow forward and laterally. Thus, when the indoor unit of the air conditioner with air outlets on both sides needs to blow air forward, the air outlet grille 200 in this embodiment increases the forward airflow capability of the indoor unit, resulting in better forward airflow, improved heating and cooling effects, and a better user experience.

[0054] In some embodiments of this utility model, such as Figure 4As shown, the surface of each intermediate air inlet plate 231 facing the first air inlet plate 211 is parallel to the surface of the second air inlet plate 221 facing the first air inlet plate 211. The surface of each intermediate air inlet plate 231 facing the second air inlet plate 221 is parallel to the surface of the first air inlet plate 211 facing the second air inlet plate 221. The surface of each intermediate air outlet plate 233 facing the first air outlet plate 213 is parallel to the surface of the second air outlet plate 223 facing the first air outlet plate 213. The surface of each intermediate air outlet plate 233 facing the second air outlet plate 223 is parallel to the surface of the first air outlet plate 213 facing the second air outlet plate 223. This arrangement makes the multiple airflow channels formed between the first air inlet plate 211, the second air inlet plate 221, and the multiple intermediate air inlet plates 231 regular, which is conducive to the entry of airflow and also makes the incoming airflow smooth. The above arrangement also makes the multiple airflow channels formed between the first air outlet plate 213, the second air outlet plate 223 and the multiple intermediate air outlet plates 233 regular, which is conducive to the entry and exit of airflow.

[0055] In some embodiments of this utility model, such as Figure 4 As shown, the included angle between the two opposing surfaces of the first air inlet plate 211 and the second air inlet plate 221 is within 3°. Along the airflow direction, the width between the two opposing surfaces of the first air inlet plate 211 and the second air inlet plate 221 gradually decreases. The two opposing surfaces of the first air outlet plate 213 and the second air outlet plate 223 are parallel. Along the airflow direction, the airflow channel formed between the two opposing surfaces of the first grille plate 210 and the second grille plate 220 first gradually narrows and then remains constant. This arrangement facilitates an increase in airflow velocity, allowing the outflowing air to travel further.

[0056] In some embodiments of this utility model, such as Figure 4 As shown, along the direction from the second air inlet plate 221 to the first air inlet plate 211, the distance between the air inlet side edge of the middle air inlet plate 231 and the first reference surface gradually increases.

[0057] In some embodiments of this utility model, such as Figure 4 As shown, along the direction from the second air inlet section 221 to the first air inlet section 211, the width of the middle air inlet section 231 gradually decreases. That is, along the airflow direction, the extension length of the middle air inlet section 231 is smaller the further away from the second air inlet section 221.

[0058] In some embodiments of this utility model, such as Figure 4As shown, the width of the first air inlet plate portion 211 is smaller than the width of the second air inlet plate portion 221. That is, along the airflow direction, the extension length of the first air inlet plate portion 211 is smaller than the extension length of the second air inlet plate portion 221.

[0059] In some embodiments of this utility model, such as Figure 4 As shown, the structures of the multiple intermediate connecting parts 232 are identical, and the structures of the multiple intermediate air outlet parts 233 are identical.

[0060] In some embodiments of this utility model, such as Figure 4 As shown, the surface of the first connecting portion 212 facing the second grid plate 220 is a first arc surface 214. The surface of the second connecting portion 222 facing the first grid plate 210 is a second arc surface 224. The surface of the intermediate connecting portion 232 facing the first grid plate 210 is a third arc surface 234. The surface of the intermediate connecting portion 232 facing the second grid plate 220 is a fourth arc surface 235. The radius of the fourth arc surface 235 is equal to the radius of the first arc surface 214. The ratio between the radius of the third arc surface 234 and the radius of the second arc surface 224 is 9 / 25 to 14 / 25. That is, the radius of the third arc surface 234 is smaller than the radius of the second arc surface 224. The arc surface design reduces flow resistance when the airflow changes angle.

[0061] In some embodiments of this utility model, such as Figure 4 As shown, the angle between the plane containing the air inlet side edges of the multiple intermediate air inlet panels 231 and the first reference plane is 8° to 12°. The first air outlet panel 213, the second air outlet panel 223, and the intermediate air outlet panels 233 define multiple air outlet channels, and the width of the air outlet channels gradually increases along the direction from the second air inlet panel 221 to the first air inlet panel 211. The ratio between the widths of any two adjacent air outlet channels is 7 / 10 to 9 / 10. To deliver air forward, the first grille 210 is positioned in front of the second grille 220. This arrangement allows more airflow to exit from the air outlet channels near the first grille 210, which is beneficial for the airflow to be closer to the indoor user space located in front of the indoor unit of the air conditioner, and facilitates rapid heating and cooling.

[0062] In some embodiments of this utility model, such as Figure 4As shown, in the air outlet side edges of the first air outlet plate 213, the second air outlet plate 223, and the middle air outlet plate 233, the plane containing every two adjacent air outlet side edges is a second reference plane. Along the direction from the second air inlet plate 221 to the first air inlet plate 211, the angle between the second reference plane and the first reference plane gradually increases. The angle between the first and last second reference planes is 2° to 8°. In the air outlet side edges of the first air outlet plate 213, the second air outlet plate 223, and the middle air outlet plate 233, along the direction from the second air inlet plate 221 to the first air inlet plate 211, the distance between the air outlet side edge and the first reference plane gradually decreases. This arrangement facilitates forward airflow.

[0063] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the second grille 220 is vertically arranged, and a water-guiding rib 240 is provided at the lower end of the surface of the second grille 220 opposite to the surface of the first grille 210. One end of the water-guiding rib 240 near the air inlet edge of the second grille 220 is lower than the other end of the water-guiding rib 240. The arrangement of the water-guiding rib 240 facilitates the flow of condensate from the second grille 220 down to the end of the water-guiding rib 240 near the air inlet edge of the second grille 220. This arrangement prevents condensate from flowing onto the surface of the indoor unit of the air conditioner, affecting its appearance and leading to customer complaints.

[0064] In some embodiments of this utility model, the indoor unit of the air conditioner also includes a drip tray configured to receive condensate water left from the water guide ribs 240.

[0065] This utility model embodiment also provides an indoor unit for an air conditioner, such as... Figure 5 and Figure 6 As shown, the device includes a housing 100 and an air outlet grille 200 as described in any of the above embodiments. The housing 100 is provided with a first air outlet 101 and a second air outlet 102. Both the first air outlet 101 and the second air outlet 102 extend vertically. The first air outlet 101 is located on one side wall of the housing 100, and the second air outlet 102 is located on the other side wall of the housing 100. There are two air outlet grilles 200; one air outlet grille 200 is rotatably disposed at the first air outlet 101, and the other air outlet grille 200 is rotatably disposed at the second air outlet 102.

[0066] Airflow is blown out from the first air outlet 101 and the second air outlet 102 located on both sides of the housing 100. Two air outlet grilles 200 are rotatably disposed at the first air outlet 101 and the second air outlet 102 to guide the flow direction of the airflow exiting from the first air outlet 101 and the second air outlet 102. Figure 6As shown, the air outlet grille directs the airflow forward and laterally, achieving maximum air delivery. When the indoor unit of the air conditioner needs to deliver air forward, such as... Figure 5 As shown, the air outlet grille rotates to face forward at the edge of the air outlet side, causing the airflow to blow forward. This increases the forward airflow capability of the indoor unit of the air conditioner, resulting in better airflow forward blowing effect, better temperature rise and fall effect, and improved user experience.

[0067] In some embodiments of this utility model, the indoor unit of the air conditioner includes a motor, and the output shaft of the motor is connected to the air outlet grille 200 to drive the air outlet grille 200 to rotate.

[0068] In some embodiments of this utility model, such as Figure 5 and Figure 6 As shown, an air duct is provided inside the housing 100. The air duct has a main air duct section 130, and a first air duct section 110 and a second air duct section 120 connected to the front end of the main air duct section 130. The first air duct section 110 is connected to the first air outlet 101, and the second air duct section 120 is connected to the second air outlet 102. A first clearance groove 111 is provided on the rear air duct wall of the first air duct section 110, which is recessed rearward to allow the corresponding air outlet grille 200 to rotate. A second clearance groove 121 is provided on the rear air duct wall of the second air duct section 120, which is recessed rearward to allow the corresponding air outlet grille 200 to rotate.

[0069] The airflow in the main air duct section 130 passes through the first air duct section 110 and the second air duct section 120, and is blown out from the first air outlet 101 corresponding to the first air duct section 110 and the second air outlet 102 corresponding to the second air outlet 120, which can expand the lateral air supply angle of the indoor unit of the air conditioner. The first clearance groove 111 can prevent the corresponding air outlet grille 200 from scraping against the side wall of the first air duct section when it rotates. The second clearance groove 121 can prevent the corresponding air outlet grille 200 from scraping against the side wall of the second air duct section when it rotates.

[0070] In some embodiments of this utility model, such as Figure 5 and Figure 6 As shown, the main air duct section 130 includes a first air duct wall 131 and a second air duct wall 132 disposed opposite to each other. The first air duct section 110 is connected to the first air duct wall 131, and the second air duct section 120 is connected to the second air duct wall 132. The second air duct wall 132 is configured such that the flow direction of the airflow within the main air duct section 130 is towards the side of the housing 100 having the first air outlet 101. The angle of change of the flow direction of the airflow within the main air duct section 130 under the action of the second air duct section 120 is greater than the angle of change under the action of the first air duct section 110.

[0071] The tangent at the front end of the second air duct wall 132 faces the first air duct section 110, causing the airflow on one side of the second air duct wall 132 to flow towards the inlet of the first air duct section. Therefore, the second air duct wall 132 is configured such that the flow direction of the airflow in the main air duct section 130 faces the side of the housing 100 with the first air outlet 101. Here, the angle at which the flow direction of the airflow in the main air duct section 130 changes under the action of the second air duct section 120 is greater than the angle at which it changes under the action of the first air duct section 110. This means that the forward angle between the flow direction of the airflow in the main air duct section 130 and the flow direction of the airflow in the second air duct section 120 is greater than the forward angle between the flow direction of the airflow in the main air duct section 130 and the flow direction of the airflow in the first air duct section 110. This arrangement increases the resistance of the airflow entering the second air duct section 120, so the amount of airflow passing through the first air duct section is much greater than the amount of airflow passing through the second air duct section.

[0072] In some embodiments of this utility model, such as Figure 5 and Figure 6 As shown, a diversion device is provided at the front end of the main air duct section 130, including a first air diversion plate 310 and a second air diversion plate 320. The first air diversion plate 310 is curved. A portion of the first air diversion plate 310 is located within the main air duct section 130, and another portion is located within the second air duct section 120. The surface of the first air diversion plate 310 facing the second air duct wall 132 is a concave surface. The second air diversion plate 320 is curved. The second air diversion plate 320 is located on the side of the first air diversion plate away from the second air duct wall 132, and the surface of the second air diversion plate 320 facing the first air diversion plate 310 is a concave surface. The curvature of the first air diversion plate 310 is greater than that of the second air diversion plate 320. The second air diversion plate 320 is located within the main air duct section 130, and the air outlet edge of the second air diversion plate 320 is adjacent to the junction of the front air duct wall of the first air duct section 110 and the front air duct wall of the second air duct section 120.

[0073] The first air distribution plate 310 guides a portion of the airflow from the main air duct section 130 into the second air duct section 120. By setting the first air distribution plate 310, the resistance of the airflow from the main air duct section 130 into the second air duct section 120 can also be reduced. The second air distribution plate 320 divides the airflow from the main air duct section 130 into two approximately equal parts. One part of the airflow enters the second air duct section 120 under the guidance of the first air distribution plate 310 and the surface of the second air distribution plate 320 facing the first air distribution plate 310, while the other part of the airflow enters the first air duct section 110 under the guidance of the surface of the second air distribution plate 320 away from the first air distribution plate.

[0074] In some embodiments of this utility model, such as Figure 5 and Figure 6As shown, the flow distribution device also includes a third air distribution plate 330, which is disposed on the side of the second air distribution plate 320 opposite to the first air distribution plate 310. The third air distribution plate 330 is curved, and the surface of the third air distribution plate 330 facing the second air distribution plate 320 is a concave surface. The third air distribution plate 330 facilitates the guidance of airflow into the first air duct section.

[0075] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air outlet grille for an air conditioner, characterized in that, include: The first grille has a first air inlet plate, a first connecting plate, and a first air outlet plate connected in sequence; the first air outlet plate is connected to the air outlet side edge of the first connecting plate, and the first air outlet plate is set at an angle to the first air inlet plate. The second grille has a second air inlet plate, a second connecting plate, and a second air outlet plate connected in sequence. The second air outlet plate is connected to the air outlet side edge of the second connecting plate, and the second air outlet plate is angled to the second air inlet plate. The second grille is disposed on one side of the first grille, and the second air outlet plate extends from the second connecting plate toward the first grille, while the first air outlet plate extends from the first connecting plate toward the direction away from the second grille. The included angle between the two opposing surfaces of the first and second air inlet plates is within 10°. The included angle between the two opposing surfaces of the first and second air outlet plates is within 10°. Multiple intermediate grille plates are sequentially and spaced apart between the first grille plate and the second grille plate. Each intermediate grille plate has an intermediate air inlet plate, an intermediate connecting plate, and an intermediate air outlet plate connected in sequence. The intermediate air outlet plate is connected to the air outlet side edge of the intermediate connecting plate, and the intermediate air outlet plate is set at an angle to the intermediate air inlet plate. The air inlet side edge of each intermediate air inlet plate is spaced apart from a first reference surface, and the first reference surface is the plane containing the air inlet side edges of the first air inlet plate and the air inlet side edges of the second air inlet plate.

2. The air outlet grille according to claim 1, characterized in that, The surface of each of the intermediate air inlet plates facing the first air inlet plate is parallel to the surface of the second air inlet plate facing the first air inlet plate. The surface of each of the intermediate air inlet plates facing the second air inlet plate is parallel to the surface of the first air inlet plate facing the second air inlet plate. The surface of each of the intermediate air outlet panels facing the first air outlet panel is parallel to the surface of the second air outlet panel facing the first air outlet panel. The surface of each of the intermediate air outlet sections facing the second air outlet section is parallel to the surface of the first air outlet section facing the second air outlet section.

3. The air outlet grille according to claim 2, characterized in that, The included angle between the two opposing surfaces of the first air inlet plate and the second air inlet plate is within 3°; along the airflow direction, the width between the two opposing surfaces of the first air inlet plate and the second air inlet plate gradually decreases; The two opposing surfaces of the first air outlet plate and the second air outlet plate are parallel.

4. The air outlet grille according to claim 1, characterized in that, Along the direction from the second air inlet plate to the first air inlet plate, the distance between the air inlet side edge of the middle air inlet plate and the first reference surface gradually increases; Along the direction from the second air inlet plate to the first air inlet plate, the width of the middle air inlet plate gradually decreases; The width of the first air inlet plate is smaller than the width of the second air inlet plate. The structures of the multiple intermediate connecting parts are identical, and the structures of the multiple intermediate air outlet plates are identical.

5. The air outlet grille according to claim 4, characterized in that, The surface of the first connecting part facing the second grid plate is a first arc surface; The surface of the second connecting part facing the first grid plate is a second arc surface; The surface of the intermediate connecting part facing the first grid plate is a third arc surface; The surface of the intermediate connecting part facing the second grid plate is a fourth arc surface; The radius of the fourth arc surface is equal to the radius of the first arc surface; The ratio between the radius of the third arc surface and the radius of the second arc surface is 9 / 25 to 14 / 25.

6. The air outlet grille according to claim 1, characterized in that, The angle between the plane containing the air inlet side edges of the plurality of intermediate air inlet plates and the first reference plane is 8° to 12°. The first air outlet plate, the second air outlet plate, and the intermediate air outlet plate define a plurality of air outlet channels. Along the direction from the second air inlet plate to the first air inlet plate, the width of the air outlet channels gradually increases; the ratio between the widths of any two adjacent air outlet channels is 7 / 10 to 9 / 10. In the air outlet side edges of the first air outlet plate, the second air outlet plate, and the intermediate air outlet plate, the plane containing every two adjacent air outlet side edges is a second reference plane. Along the direction from the second air inlet plate to the first air inlet plate, the angle between the second reference plane and the first reference plane gradually increases; the angle between the first second reference plane and the last second reference plane is 2° to 8°. In the air outlet side edges of the first air outlet plate, the second air outlet plate, and the intermediate air outlet plate, the distance between the air outlet side edge and the first reference surface gradually decreases along the direction from the second air inlet plate to the first air inlet plate.

7. The air outlet grille according to claim 1, characterized in that, The second grating is vertically arranged, and a water guide rib is provided at the lower end of the surface of the second grating away from the first grating. One end of the water guide rib near the air inlet edge of the second grating is lower than the other end of the water guide rib.

8. An indoor unit for an air conditioner, characterized in that, include: The housing has a first air outlet and a second air outlet; both the first air outlet and the second air outlet extend vertically, the first air outlet is located on one side wall of the housing, and the second air outlet is located on the other side wall of the housing; The air outlet grille as described in any one of claims 1 to 7, wherein there are two air outlet grilles, one of which is rotatably disposed at the first air outlet and the other of which is rotatably disposed at the second air outlet.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The housing is provided with an air duct, which has a main air duct section, and a first air duct section and a second air duct section connected to the front end of the main air duct section; the first air duct section is connected to the first air outlet, and the second air duct section is connected to the second air outlet. The rear duct wall of the first air duct section is provided with a first recessed groove for the rotation of the corresponding air outlet grille; the rear duct wall of the second air duct section is provided with a second recessed groove for the rotation of the corresponding air outlet grille.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, The main air duct section includes a first air duct wall and a second air duct wall disposed opposite to each other; the first air duct section is connected to the first air duct wall, and the second air duct section is connected to the second air duct wall; the second air duct wall is configured such that the flow direction of the airflow in the main air duct section is towards the side of the housing having the first air outlet; the angle of change of the flow direction of the airflow from the main air duct section under the action of the second air duct section is greater than the angle of change under the action of the first air duct section; A diversion device is provided at the front end of the main air duct section, and the diversion device includes: The first air distribution plate is curved; a portion of the first air distribution plate is located within the main air duct section, and another portion is located within the second air duct section; the surface of the first air distribution plate facing the second air duct wall is a concave surface. The second air distribution plate is curved; the second air distribution plate is located on the side of the first air distribution plate away from the second air duct wall, and the surface of the second air distribution plate facing the first air distribution plate is a concave surface; the curvature of the first air distribution plate is greater than that of the second air distribution plate. The second air distribution plate is located within the main air duct section, and the air outlet edge of the second air distribution plate is close to the connection between the front air duct wall of the first air duct section and the front air duct wall of the second air duct section.

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