Air outlet panel and air conditioner outdoor unit with same

Abstract

The utility model provides an air -out panel and have its air conditioner outdoor unit, include: mainboard body, be provided with air outlet on mainboard body, mainboard body has the air -intake side and the air -out side of opposite setting, deflector, the part of deflector is connected with the circumference of air outlet of mainboard body, at least part of deflector is set out to air -intake side relative to mainboard body, be provided with the flow guide opening slot on deflector, the opening of flow guide opening slot is set to air -out side, and flow guide opening slot is located air -intake side or air -out side, grating structure, including the main air -out grating and annular air -out grating of interconnection, annular air -out grating surrounds the circumference of main air -out grating and sets up, and the side of annular air -out grating is apart from main air -out grating and is connected with deflector. Through the technical scheme provided by the utility model, can solve the technical problem that the heat exchange efficiency of outdoor heat exchanger of air conditioner outdoor unit is affected because of the air -out resistance of air -out panel's air outlet in prior art.

Description

Technical Field

[0001] This utility model relates to the field of air outlet panel technology, and more specifically, to an air outlet panel and an outdoor unit of an air conditioner having the same. Background Technology

[0002] Currently, existing air conditioner outdoor units mainly include a chassis, outer casing (grille), top cover, left side panel, right side panel, front panel, fan, partition plate, heat exchanger, compressor and its piping, controller, etc. The outer casing of the air conditioner outdoor unit serves to rectify the airflow from the fan and protect the unit. The outer casing is composed of a grille with many small holes. Airflow passes through the outer casing and flows along the grille guide, which rectifyes the airflow. At the same time, it prevents hands or other foreign objects from entering the air conditioner outdoor unit through the small holes of the outer casing grille and coming into contact with the rotating fan blades and the live motor. The outer casing also protects the interior of the casing. Air conditioner outdoor units commonly use axial flow fans to perform forced convection heat exchange on the heat exchanger. The efficiency of the fan has a significant impact on the air conditioning capacity, energy efficiency, and comfort. Low fan airflow will result in poor heat exchange on the heat exchanger side, leading to low air conditioning capacity and increased system power on the refrigerant side; at the same time, low fan efficiency results in high fan input power.

[0003] However, in the existing technology, the air outlet area of ​​the grille structure of the outer cover is limited and the resistance is large, which hinders the airflow at the air outlet, affects the air volume of the outdoor unit, and thus affects the heat exchanger's heat exchange efficiency, resulting in reduced air conditioning capacity and energy efficiency, and insufficient energy saving. Utility Model Content

[0004] The main objective of this invention is to provide an air outlet panel and an outdoor air conditioner unit having the same, so as to solve the technical problem in the prior art where the high air outlet resistance at the air outlet of the air outlet panel affects the heat exchange efficiency of the outdoor heat exchanger of the outdoor air conditioner unit.

[0005] To achieve the above objectives, according to one aspect of the present invention, an air outlet panel is provided, comprising:

[0006] The motherboard body has an air outlet and has an air inlet side and an air outlet side that are arranged opposite to each other.

[0007] A deflector plate is connected to the portion of the main body located around the air outlet. At least a portion of the deflector plate protrudes relative to the main body toward the air inlet side. A deflector plate is provided with a deflector opening groove, the opening of which faces toward the air outlet side. The deflector opening groove is located on the air inlet side or the air outlet side.

[0008] The grille structure includes a main air outlet grille and an annular air outlet grille that are connected to each other. The annular air outlet grille is arranged around the periphery of the main air outlet grille, and the side of the annular air outlet grille away from the main air outlet grille is connected to the guide plate.

[0009] Furthermore, at least a portion of the periphery of the opening of the guide slot is located on the air inlet side; and / or,

[0010] The side of the annular air outlet grille furthest from the main air outlet grille is connected to the portion of the guide plate located on the air inlet side; and / or,

[0011] The end of the annular air outlet grille closest to the main air outlet grille, and the main air outlet grille are both located on the air outlet side.

[0012] Furthermore, the guide plate has an inlet section and an outlet section arranged opposite to each other, the inlet section being located on the side of the outlet section closer to the air inlet side;

[0013] Wherein, along the extension direction from the flow-guiding inlet section to the flow-guiding outlet section, the flow-guiding cross-section of the flow-guiding inlet section gradually decreases; and / or,

[0014] The flow guide inlet section is provided with an arc transition structure; and / or,

[0015] The side of the annular air outlet grille furthest from the main air outlet grille is located within the guide opening groove and is connected to the guide inlet section.

[0016] Furthermore, the guide plate includes a first annular plate, a second annular plate, and a third annular plate connected in sequence. One end of the first annular plate is connected to the periphery of the air outlet. The first annular plate and the third annular plate are disposed opposite each other and located on the outer ring of the third annular plate. The first annular plate, the second annular plate, and the third annular plate form the guide opening groove. At least a portion of the first annular plate, at least a portion of the third annular plate, and the second annular plate are all located on the air inlet side.

[0017] Furthermore, the thickness difference between the first annular plate and the main plate is 0 ≤ δT1 ≤ 0.3 mm; and / or,

[0018] The thickness difference between the second annular plate and the main plate is 0 ≤ δT2 ≤ 0.3 mm; and / or,

[0019] The thickness difference between the third annular plate and the main plate is 0 ≤ δT3 ≤ 0.3 mm.

[0020] Furthermore, the annular air outlet grille includes a first rib, which extends radially along the grille structure. There are multiple first ribs, which are spaced apart along the periphery of the main air outlet grille.

[0021] The main air outlet grille includes a second rib and a third rib. The second rib extends radially along the grille structure, and the third rib is an annular rib. There are multiple second ribs and multiple third ribs. The multiple second ribs are arranged at intervals along the circumference of the main air outlet grille, and the multiple third ribs are arranged at intervals along the radial direction of the main air outlet grille. Each of the third ribs is connected to the multiple second ribs to form a mesh grille.

[0022] Furthermore, the largest of the plurality of third ribs is located at the end of the plurality of second ribs and connected to the plurality of first ribs; and / or,

[0023] The grille structure is arranged opposite to the fan blade, and the angle between the first rib along the rotation direction of the fan blade and the radial direction of the grille structure is θ1, where 0°≤θ1≤60°.

[0024] Furthermore, the air outlet panel also includes:

[0025] A recessed plate protrudes towards the air inlet side, the outer ring of the recessed plate is connected to the periphery of the air outlet, the inner ring of the recessed plate is connected to the guide plate, the recessed plate avoids the guide opening groove, the guide plate is connected to the recessed plate, and at least a portion of the recessed plate and the annular air outlet grille are radially spaced.

[0026] Furthermore, the inner circle of the recessed plate is circular; the outer circle of the recessed plate is circular or polygonal; and / or,

[0027] Along the direction from the air inlet side to the air outlet side, the flow cross-sectional area of ​​the recessed plate gradually increases; and / or,

[0028] The annular air outlet grille is radially spaced from the inner ring of the recessed plate; and / or,

[0029] The grille structure is arranged opposite to the fan blade, and the angle between the recessed plate and the rotation axis of the fan blade is θ2, where 10°≤θ2≤90°.

[0030] Furthermore, the air outlet panel is injection molded as a single piece.

[0031] According to another aspect of the present invention, an air conditioner outdoor unit is provided, including the air outlet panel provided above.

[0032] By applying the technical solution of this utility model, the air outlet panel design proposed in this application significantly reduces airflow resistance and improves airflow volume and heat exchange efficiency by setting airflow-guiding openings on the guide plate and optimizing the layout of the grille structure, thus making the air conditioner more energy-efficient. Furthermore, the combination of the recessed plate and the guide plate not only improves airflow guidance but also effectively reduces airflow disturbance and eddy current generation, thereby reducing noise during air conditioner operation and improving user comfort. In addition, the use of integrated injection molding technology simplifies the manufacturing process of the outer casing, reduces the number of parts, lowers production costs, and enhances the product's competitiveness in the market. Actual test results show that, at the same power, airflow is increased by 9.3%, and noise is reduced by nearly 2.0 dB. The actual effect of this application's solution is significant, effectively improving air conditioner performance and user experience. Attached Figure Description

[0033] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0034] Figure 1 A front view of an air outlet panel provided according to an embodiment of the present invention is shown;

[0035] Figure 2 A top view of an air outlet panel provided according to an embodiment of the present invention is shown;

[0036] Figure 3 A left view of an air outlet panel provided according to an embodiment of the present invention is shown;

[0037] Figure 4 A schematic diagram of the air outlet panel located on the air inlet side according to an embodiment of the present invention is shown;

[0038] Figure 5 A cross-sectional view of the air outlet panel structure provided according to an embodiment of the present invention is shown;

[0039] Figure 6 It shows Figure 1 AA direction diagram in the middle;

[0040] Figure 7 A structural schematic diagram of an air outlet panel provided according to an embodiment of the present invention is shown from one perspective;

[0041] Figure 8 A structural schematic diagram of an air outlet panel provided according to an embodiment of the present invention is shown from another perspective;

[0042] Figure 9A schematic diagram of a circular recessed plate in an air outlet panel according to an embodiment of the present invention is shown.

[0043] Figure 10 A schematic diagram of a quadrilateral recessed plate in an air outlet panel according to an embodiment of the present invention is shown.

[0044] Figure 11 A schematic diagram of an octagonal recessed plate of an air outlet panel provided according to an embodiment of the present invention is shown.

[0045] Figure 12 A schematic diagram of the structure of an air conditioner outdoor unit provided according to an embodiment of the present invention is shown.

[0046] The above figures include the following reference numerals:

[0047] 10. Motherboard body;

[0048] 11. Air intake side;

[0049] 12. Air outlet side;

[0050] 20. Deflector plate;

[0051] 21. Flow guide opening groove;

[0052] 22. Diversion inlet section;

[0053] 23. Diversion outlet section;

[0054] 24. First annular plate;

[0055] 25. The second annular plate;

[0056] 26. The third annular plate;

[0057] 30. Grid structure;

[0058] 31. Main air outlet grille;

[0059] 311. Second reinforcing bar;

[0060] 312. Third reinforcing bar;

[0061] 32. Circular air vent grille;

[0062] 321. First reinforcing bar;

[0063] 40. Concave plate;

[0064] 50. Outer shell. Detailed Implementation

[0065] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0066] like Figures 1 to 12 As shown, an embodiment of this utility model provides an air outlet panel, which includes: a main body 10, a guide plate 20, and a grille structure 30. The main body 10 is provided with an air outlet and has an air inlet side 11 and an air outlet side 12 disposed opposite to each other. The guide plate 20 is connected to the portion of the main body 10 located at the periphery of the air outlet. At least a portion of the guide plate 20 protrudes relative to the main body 10 toward the air inlet side 11. The guide plate 20 is provided with a guide opening groove 21, the opening of which faces the air outlet side 12. The guide opening groove 21 is located on either the air inlet side 11 or the air outlet side 12. The grille structure 30 includes a main air outlet grille 31 and an annular air outlet grille 32 connected to each other. The annular air outlet grille 32 is disposed around the periphery of the main air outlet grille 31, and the side of the annular air outlet grille 32 away from the main air outlet grille 31 is connected to the guide plate 20.

[0067] The air outlet panel provided in this embodiment improves the airflow characteristics when passing through the outer casing by optimizing the guide opening 21 of the guide plate 20 and the grille structure 30. In principle, the guide opening 21 facilitates smooth airflow guidance, while the grille structure 30 ensures multi-directional airflow outlets, increasing the outlet area and reducing airflow resistance. Furthermore, the combination of the annular air outlet grille 32 and the guide opening 21 further reduces airflow resistance, allowing a portion of the airflow to smoothly pass through the guide opening 21 after passing through the annular air outlet grille 32, thus improving airflow smoothness. In terms of effectiveness, the technology in this embodiment significantly improves the airflow of the air conditioner fan and the heat exchanger efficiency by increasing the outlet area and optimizing the airflow path, making the air conditioner more energy-efficient. In other embodiments, the airflow distribution can be further optimized by adjusting the size and shape of the guide plate 20 and the grille structure 30 to solve airflow resistance problems in specific environments.

[0068] Specifically, the airflow guide opening 21 can be a U-shaped groove. The grille structure 30 can be located at the air outlet so that the air at the air outlet passes through the grille structure 30.

[0069] Specifically, at least a portion of the periphery of the opening of the guide slot 21 is located on the air inlet side 11. This structural arrangement facilitates the placement of at least a portion of the guide plate 20 on the air inlet side 11, preventing the guide plate 20 from extending beyond the air outlet side 12 of the air outlet panel. This avoids the air outlet panel occupying excessive dimensions in the direction from the air inlet side 11 to the air outlet side 12, improving structural compactness and reducing overall dimensions.

[0070] In addition, the above settings allow the air flowing out through the annular air outlet grille 32 to directly enter the guide opening groove 21, avoiding direct impact with the guide plate 20 or the main body 10, which would cause poor airflow and improve the smoothness of airflow.

[0071] Specifically, the side of the annular air outlet grille 32 furthest from the main air outlet grille 31 is connected to the portion of the guide plate 20 located on the air inlet side 11. This ensures the connection stability of the annular air outlet grille 32 and facilitates the smooth flow of air after being guided by the guide plate 20 through the annular air outlet grille 32, thereby improving airflow smoothness. Furthermore, this arrangement allows a portion of the annular air outlet grille 32 to be located on the air inlet side 11, thus embedding the annular air outlet grille 32 into the air outlet panel. This prevents the annular air outlet grille 32 from extending excessively beyond the air outlet side 12, ensuring that the thickness of the air outlet panel from the air inlet side 11 to the air outlet side 12 is not excessive, resulting in a smaller overall size and more compact layout. The structure of the guide plate 20 combined with the annular air outlet grille 32 and the guide opening groove 21 effectively reduces airflow resistance and improves airflow smoothness. Additionally, this arrangement facilitates demolding during the integral molding of the air outlet panel.

[0072] Specifically, the end of the annular air outlet grille 32 closest to the main air outlet grille 31, and the main air outlet grille 31, are both located on the air outlet side 12. This structural arrangement facilitates air outlet, allowing for effective airflow through the main air outlet grille 31 and the auxiliary air outlet grille.

[0073] Specifically, at least a portion of the periphery of the opening of the guide slot 21 is located on the air inlet side 11; the side of the annular air outlet grille 32 away from the main air outlet grille 31 is connected to the portion of the guide plate 20 located on the air inlet side 11; the end of the annular air outlet grille 32 near the main air outlet grille 31 and the main air outlet grille 31 are both located on the air outlet side 12. This design ensures a uniform distribution of airflow on the air inlet side 11 and the air outlet side 12. In principle, through the reasonable layout of the guide slot 21 and the annular air outlet grille 32, airflow can flow more smoothly from the side and front, reducing airflow disturbance and vortex generation. In terms of effect, the technology in this embodiment reduces aerodynamic noise and improves the comfort of air conditioning use by optimizing the airflow outlet. In other embodiments, the airflow guidance problem under different fan blade sizes and rotation directions can also be solved by changing the connection method of the guide slot 21 and the annular air outlet grille 32.

[0074] In this embodiment, the guide plate 20 has a guide inlet section 22 and a guide outlet section 23 arranged opposite to each other, and the guide inlet section 22 is located on the side of the guide outlet section 23 closer to the air inlet side 11.

[0075] Along the extension direction from the guide inlet section 22 to the guide outlet section 23, the guide cross-section of the guide inlet section 22 gradually decreases. This structural arrangement facilitates airflow guidance, thereby improving airflow smoothness.

[0076] Specifically, the airflow inlet section 22 is provided with an arc transition structure to further improve the smoothness of the airflow direction and facilitate better airflow.

[0077] The side of the annular air outlet grille 32 furthest from the main air outlet grille 31 is located within the guide opening groove 21 and is connected to the guide inlet section 22. This structural arrangement allows a portion of the airflow entering through the guide inlet section 22 to exit through the annular air outlet grille 32, while the other portion exits through the main air outlet grille 31, thus optimizing the airflow direction and improving the airflow guiding effect.

[0078] Furthermore, by gradually decreasing the guide cross-section of the guide inlet section 22 along the extension direction from the guide inlet section 22 to the guide outlet section 23, providing an arc transition structure at the guide inlet section 22, and having the side of the annular air outlet grille 32 away from the main air outlet grille 31 located within the guide opening groove 21 and connected to the guide inlet section 22, the airflow collection effect and guiding performance are improved through the dimensional changes of the inlet and outlet sections of the guide plate 20 and the arc transition structure. In principle, the gradually decreasing guide cross-section of the guide inlet section 22 helps to increase the airflow velocity, while the arc transition structure reduces the resistance when the airflow enters. In terms of effect, the technology in this embodiment further improves the air volume of the air conditioner fan and the heat exchange efficiency of the heat exchanger by optimizing the structure of the guide plate 20, making the air conditioner more energy-efficient. In other embodiments, the air collection effect problem under different fan speeds can also be solved by changing the radius of the arc transition structure.

[0079] Specifically, the guide plate 20 includes a first annular plate 24, a second annular plate 25, and a third annular plate 26 connected in sequence. One end of the first annular plate 24 is connected to the periphery of the air outlet. The first annular plate 24 is disposed opposite to the third annular plate 26 and is located on the outer ring of the third annular plate 26. The first annular plate 24, the second annular plate 25, and the third annular plate 26 form the guide opening groove 21. At least a portion of the first annular plate 24, at least a portion of the third annular plate 26, and the second annular plate 25 are all located on the air inlet side 11. Specifically, the connection of the first annular plate 24, the second annular plate 25, and the third annular plate 26 forms a guide opening groove 21 that facilitates airflow concentration, thereby improving the airflow guiding efficiency. The above structure is simple, easy to mold, and easy to generate an integral molded structure using injection molding.

[0080] Specifically, the second annular plate 25 has a side wall surface that is either arc-shaped or conical, and the second annular plate 25 forms the inlet section of the guide plate 20.

[0081] The first annular plate 24 is located on the outer ring of the third annular plate 26, and the end of the first annular plate 24 away from the second annular plate 25 protrudes from the end of the second annular plate 25 away from the second annular plate 25. This structural arrangement facilitates the smooth flow of air from the edge of the guide opening slot 21 located at the position of the annular air outlet grille 32 into the annular air outlet grille 32 and then out through the annular air outlet grille 32, thus facilitating air outlet.

[0082] Specifically, the thickness difference between the first annular plate 24 and the main body 10 is 0 ≤ δT1 ≤ 0.3 mm; and / or, the thickness difference between the second annular plate 25 and the main body 10 is 0 ≤ δT2 ≤ 0.3 mm; and / or, the thickness difference between the third annular plate 26 and the main body 10 is 0 ≤ δT3 ≤ 0.3 mm. This design ensures the thickness consistency between the guide plate 20 and the main body 10, which is beneficial for manufacturing. In principle, by controlling the thickness difference between each part of the guide plate 20 and the main body 10 to be small, the thickness consistency between the guide plate 20 and the main body 10 is ensured as much as possible, so that the air outlet panel can be manufactured in an integrated injection molding process, reducing the complexity of the production process. In terms of effect, the technology in this embodiment, by controlling the thickness difference, allows the outer cover to be manufactured in an integrated manner, reducing the number of parts, lowering the overall cost, and improving market competitiveness. In other embodiments, the production cost problem under different manufacturing processes can also be solved by adjusting the range of the thickness difference.

[0083] In this embodiment, the annular air outlet grille 32 includes first ribs 321 extending radially along the grille structure 30. Multiple first ribs 321 are spaced apart along the periphery of the main air outlet grille 31. The main air outlet grille 31 includes second ribs 311 and third ribs 312. The second ribs 311 extend radially along the grille structure 30, and the third ribs 312 are annular. Multiple second ribs 311 and third ribs 312 are spaced apart circumferentially along the main air outlet grille 31, and multiple third ribs 312 are spaced apart radially along the main air outlet grille 31. Each third rib 312 is connected to multiple second ribs 311 to form a mesh grille. This design, through the connection of the first ribs 321, second ribs 311, and third ribs 312, forms a mesh grille structure 30, optimizing the airflow path. In principle, the first rib 321 allows airflow to exit from the side, while the connection between the second rib 311 and the third rib 312 ensures a frontal outlet for the airflow, increasing the outlet area and reducing airflow resistance. In terms of effectiveness, the technology in this embodiment, by optimizing the grille structure 30, significantly improves the airflow of the air conditioner fan and the heat exchange efficiency of the heat exchanger, making the air conditioner more energy-efficient. In other embodiments, the airflow resistance problem under different airflow velocities can also be solved by adjusting the width and spacing of the ribs.

[0084] Specifically, the largest of the plurality of third ribs 312 is located at the end of the plurality of second ribs 311 and is connected to the plurality of first ribs 321. This facilitates optimization of the structural layout of the largest third rib 312 and ensures the stability of the annular connection layout of the plurality of first ribs 321 and the plurality of second ribs 311.

[0085] The grille structure 30 is positioned opposite to the fan blades, and the angle between the first rib 321 along the rotation direction of the fan blades and the radial direction of the grille structure 30 is θ1, where 0°≤θ1≤60°. This facilitates effective optimization of the airflow direction, ensuring smooth airflow and facilitating airflow outwards.

[0086] Specifically, the connection between the third rib 312 and the first rib 321 optimizes the airflow direction. In principle, the angle θ1 between the first rib 321 and the fan blade rotation direction ensures smooth airflow during rotation, reducing airflow disturbance and eddy current generation. In terms of effectiveness, the technology in this embodiment, by optimizing the rotation angle of the first rib 321, further improves the airflow of the air conditioner fan and the heat exchanger efficiency, making the air conditioner more energy-efficient. In other embodiments, the airflow guidance problem under different fan blade rotation speeds can be solved by adjusting the specific value of the angle θ1.

[0087] In this embodiment, the air outlet panel further includes a recessed plate 40, which protrudes towards the air inlet side 11. The outer ring of the recessed plate 40 is connected to the periphery of the air outlet, and the inner ring of the recessed plate 40 is connected to the guide plate 20. The recessed plate 40 avoids the guide opening slot 21. The guide plate 20 is connected to the recessed plate 40, and the recessed plate 40 and at least a portion of the annular air outlet grille 32 are radially spaced apart. This design, through the recessed plate 40, further optimizes the airflow path. In principle, the protruding recessed plate 40 helps guide the airflow, while the spaced arrangement with the guide plate 20 and the annular air outlet grille 32 reduces airflow resistance. In terms of effect, the technology in this embodiment, by adding the recessed plate 40, improves the disturbance of the airflow by the outer casing, reduces separation vortices during the flow process, and achieves the purpose of drag reduction and noise reduction. In other embodiments, the airflow guidance and noise reduction issues under different air outlet panel designs can also be addressed by changing the shape and size of the recessed plate 40.

[0088] In this embodiment, the inner circle of the recessed plate 40 is circular; the outer circle of the recessed plate 40 is circular or polygonal. By adjusting the shape and size of the recessed plate 40, the airflow guidance and air collection effect are optimized.

[0089] Specifically, the polygon can be a quadrilateral, or a pentagon, or a hexagon, etc.

[0090] Specifically, along the direction from the air inlet side 11 to the air outlet side 12, the flow cross-sectional area of the concave plate 40 gradually increases. In this way, it helps to improve the guiding efficiency of the air outflow.

[0091] Specifically, the annular air outlet grille 32 is radially spaced from the inner circle of the concave plate 40. In this way, there is a certain gap between the annular air outlet grille 32 and the inner circle of the concave plate 40, so that the air flowing out through the annular air outlet grille 32 can flow out through this gap, improving the smoothness of the air outlet.

[0092] Specifically, the grille structure 30 is disposed opposite to the wind blade, and the included angle between the concave plate 40 and the rotation axis of the wind blade is θ2, where 10° ≤ θ2 ≤ 90°. With such an angle setting, the resistance during the air outflow is reduced, and the smoothness of the air outlet is further improved.

[0093] In this embodiment, the air outlet panel is integrally injection molded, which is convenient for production and molding.

[0094] Specifically, the air outlet panel in this embodiment includes features such as a diversion part (corresponding to the diversion plate 20), a concave part (corresponding to the concave plate 40), a grille structure 30, a main board body 10, etc. The diversion part is provided with a U-shaped groove, the concave part is provided at the air outlet of the panel part of the fan, the U-shaped groove extends to the concave part of the panel, and the grille structure 30 is disposed within the range of the concave part.

[0095] Specifically, the diversion part is cylindrical, and the diversion part can also be called the diversion plate 20 or the diversion ring. Its inner diameter is D1 and its outer diameter is D2. A U-shaped groove is provided between the inner and outer sides of the diversion part. The opening of the U-shaped groove points to the air outlet side along the air flow direction and extends to the concave part of the panel; along the air flow direction, the air inlet of the diversion ring is provided with an arc segment with a radius of R.

[0096] The grille structure 30 is formed by the connection of the first rib 321, the second rib 311, and the third rib 312 to form a mesh through hole. Taking the rotation axis as the center and the plane perpendicular to the rotation axis of the fan as the projection plane, on the projection plane of the grille structure 30, the first rib 321 and the second rib 311 extend radially from the center of the fan rotation and are spaced at intervals in the circumferential direction. The first rib 321 is disposed in the area where the outer diameter of the grille is greater than D3, while the second rib 311 is disposed in the area where the inner diameter of the grille is less than D3, and D3 < D1. The first rib 321 forms an angle θ1 with the radial direction along the rotation direction of the wind blade, preferably 0 0 ≤ θ1 ≤ 60 0 .

[0097] The third rib 312 is in the shape of a ring and is arranged at intervals along the radial direction. The diameter of the outermost rib of the third rib 312 is D3. One end of the first rib 321 is connected to the outermost third rib 312, and the other end of the first rib 321 is connected to the U-shaped groove intake arc section of the recessed part and extending to the guide ring.

[0098] The recess can be circular, square, etc. When it is circular, its diameter is D5, the inner diameter of the guide ring is D1, and the diameter of the grille structure 30 is D4, where D5>D4>D1. Along the axial direction of the fan blade rotation axis, the depth of the recess is H1, and the height of the grille structure 30 is H2, where H2≥H1.

[0099] In the cross-section of the rotor shaft of the wind turbine blade, the recessed part forms an angle θ2 with the rotor shaft, which is preferably 30°. 0 ≤θ2≤90 0 .

[0100] The recessed portion of the air outlet panel and the grille structure 30 are the air outlets for the outdoor fan. The first rib 321 of the grille structure 30 allows airflow to exit from the side, while the second rib 311 and the third rib 312 allow airflow to exit from the front. The air outlet area is (2πD4×H2+π(D4)). 2 / 4) The side opening height of the grille is H2, which increases the grille opening area and reduces air resistance compared to existing technologies with only a front opening. This improves the airflow of the air conditioner fan and the heat exchange efficiency of the heat exchanger, making the air conditioner more energy-efficient.

[0101] Due to the rotation of the axial flow fan, the magnitude of the centrifugal force is F = mω. 2 r (m--mass; ω--angular velocity of rotation; r--radius of rotation) indicates that the larger the radius of rotation, the greater the centrifugal force. When an axial flow fan blade rotates, under the action of centrifugal force and the blades, the airflow generates radial velocity Vr and tangential velocity Vτ. The angle between the airflow and the tangential direction of the rotating circumference is θ1, and tanθ1=Vr / Vτ. When there is no radial flow and only tangential flow, Vr=0, and θ1=0. 0 When there is only radial flow and no tangential flow, when Vτ = 0, θ1 = 90°. 0 The included angle θ1 is related to the rotational speed, the fan blades, and the position of the airflow on the air outlet panel.

[0102] As the axial flow fan rotates, the airflow spirals and flows axially through the grille. The first rib 321 forms an angle θ1 with the radial direction along the direction of the fan blade's rotation. When the diameter D3 of the first rib 321 is small and the distance between the fan blade and the outer casing is large, the tangential velocity of the airflow is small, and the value of θ1 is small; conversely, the value of θ1 is large. (Optimally 0) 0 ≤θ1≤60 0The angle between the recessed portion and the rotation axis is equal, thus reducing airflow resistance along the rotation direction. Simultaneously, the recessed portion forms an angle θ2 with the rotation axis, making the axial cross-section increasingly larger and further reducing airflow resistance along the axial direction. This improves the airflow of the air conditioner fan and the heat exchanger's efficiency, making the air conditioner more energy-efficient.

[0103] The arc-shaped section of the air intake in the guide section has an air-gathering function, which improves the efficiency of the fan.

[0104] Therefore, by setting the relevant parameters of the air guide, the grille structure 30, and the recessed part, the resistance of the outer casing to airflow can be reduced, the air volume of the air conditioner fan and the heat exchange efficiency of the heat exchanger can be improved, making the air conditioner more energy-efficient.

[0105] With the same air volume, an increase in the air outlet area leads to a decrease in the average air velocity. The noise generated by airflow disturbance is related to the air velocity. The decrease in air velocity reduces the disturbance area when the airflow passes through the outer casing, thereby reducing the intensity of the eddies generated by the disturbance and thus reducing noise, making the user experience more comfortable.

[0106] The above settings increase the air outlet area of ​​the air outlet panel, reduce air outlet resistance, improve the disturbance of airflow by the outer casing, reduce separation vortices during the flow process, and achieve the purpose of drag reduction and noise reduction.

[0107] Currently, in existing technologies, the front panel and air deflector are typically sheet metal parts formed using sheet metal processing, while the grille is usually a wire mesh or injection-molded plastic grille. The outer cover is assembled from two parts, resulting in a large number of parts, high production costs, and poor market competitiveness. In this application, a U-shaped groove is incorporated into the air deflector, and the diameter of the outer cover recess (D5) and the grille structure diameter (D4) satisfy D5>D4>D1. This not only reduces air resistance and noise but also allows the air outlet panel to be manufactured as a single unit, reducing the number of parts, lowering the overall cost, and improving market competitiveness.

[0108] While the arc-shaped air intake section of the air guide improves the efficiency of the fan, it also increases the thickness of the air guide, resulting in a larger (D2-D1) thickness. This leads to uneven thickness of the outer cover, which is detrimental to actual production. By creating a U-shaped groove in the air guide to hollow it out, the thickness of the air guide is reduced, making it consistent with the thickness of the main body of the cover. Furthermore, the opening of the U-shaped groove points towards the air outlet side along the airflow direction and extends to the recessed part of the panel, which facilitates demolding during production.

[0109] D5 > D4 positions the grille structure 30 within the recess. D4 > D1 makes the diameter of the grille structure 30 larger than the diameter of the air outlet deflector ring, resulting in a larger front air outlet area and reduced wind resistance. The grille structure 30 of the air conditioner is composed of a mesh formed by ribs. The width d of the ribs (the ribs include the first rib 321, the second rib 311, and the third rib 312) is generally about 6 - 12 mm, and the thickness t of the ribs (the ribs include the first rib 321, the second rib 311, and the third rib 312) is generally about 2 - 5 mm. When (D4 - d) < D1, that is, the inner side of the first rib 321 of the grille structure 30 is smaller than the inner diameter of the deflector ring, it is beneficial for demolding during production, and the outer cover can be integrally manufactured. Otherwise, when (D4 - d) > D1, demolding is difficult and it is difficult to manufacture integrally. Although reducing the diameter D4 of the grille structure 30 is beneficial for demolding, if the diameter D4 of the grille structure 30 is too small, the front air outlet area will also decrease, increasing the wind resistance. If the diameter D4 of the grille structure 30 is too large, demolding may be difficult. Therefore, the grille diameter D4 satisfies D5 > D4 > D1, minimizing the wind resistance of the outer cover grille structure 30, enabling the integral manufacture of the outer cover, reducing the number of parts, lowering the overall machine cost, and enhancing market competitiveness.

[0110] The distance that the air outlet panel protrudes from the air outlet side 12 along the wind blade rotation axis direction relative to the outdoor unit is (H2 - H1), which does not increase the thickness dimension of the outdoor unit, makes the structure more compact, increases the cabinet loading capacity, reduces the transportation cost, and enhances market competitiveness.

[0111] Verify that the diameter of the air outlet blade of the outdoor unit of the air conditioner is 350 mm, the rotational speed is 930 rpm, the deflector part of the air outlet panel is cylindrical, the inner diameter D1 = 362 mm, D2 = 382 mm, and the intake arc segment R = 25 mm. The dimensions of the grille structure 30 and the recess of the outer cover are as follows: D3 = 352 mm, D4 = 382, D5 = 393, θ1 = 35 0 ,θ2 = 28 0 ,H1 = 25, H2 = 45. The verified technical effects are as follows: The power is equivalent, the air volume is increased by 9.3%, and the noise is reduced by nearly 2.0 dB. The specific comparison is shown in the following table:

[0112]

[0113] A recess is provided at the position corresponding to the fan exhaust outlet of the air outlet panel. The recess can be circular, rectangular, square, polygonal, etc. The grille structure 30 is arranged within the range of the recess.

[0114] The recessed portion of the air outlet panel and the grille structure 30 serve as the air outlet for the outdoor fan. The side opening height of the grille structure 30 forms a lateral outlet. The recessed portion of the panel facilitates smoother lateral airflow from the grille, reducing the resistance of the outdoor fan and increasing air volume. Different shapes of the recessed portion will result in different levels of resistance, with the priority order being rectangular, square, polygonal, and circular; this should be comprehensively considered based on factors such as the actual appearance and structural space.

[0115] Another embodiment of this utility model provides an air conditioner outdoor unit, including the air outlet panel provided in the above embodiment. This design applies an optimized air outlet panel to the air conditioner outdoor unit, improving the overall airflow guidance and air collection effect. In principle, the optimized design of the air outlet panel works in conjunction with other components of the air conditioner outdoor unit, increasing the air volume of the air conditioner fan and the heat exchange efficiency of the heat exchanger, while reducing airflow resistance and noise. In terms of effect, the technology in this embodiment achieves higher air conditioning efficiency and a better user experience by applying the optimized air outlet panel to the air conditioner outdoor unit. In other embodiments, the compactness and cost issues of the overall structure can be solved by more tightly integrating the air outlet panel with other components of the air conditioner outdoor unit.

[0116] Specifically, the outdoor unit of the air conditioner includes an outer casing 50, and the outer casing 50 includes an air outlet panel.

[0117] When the outdoor unit of the air conditioner is running, the axial fan blades rotate to generate airflow. The airflow first passes through the guide inlet section 22 of the guide plate 20. Due to the presence of the arc transition structure, the airflow can enter more smoothly, reducing the resistance upon entry. Subsequently, the airflow passes through the guide opening groove 21. Since the opening of the guide opening groove 21 is set towards the air outlet side 12, the airflow can be guided more smoothly to the air outlet side 12 of the air outlet panel. When the airflow passes through the annular air outlet grille 32, due to the setting of the first rib 321, the airflow can flow out from the side, while the connection of the second rib 311 and the third rib 312 ensures the front outlet of the airflow, increasing the air outlet area and reducing airflow resistance. When the airflow passes through the recessed plate 40, since the inner ring of the recessed plate 40 is circular and the outer ring is circular or polygonal, and the flow cross-sectional area gradually increases, the airflow can be guided more smoothly to the air outlet side 12 of the air outlet panel, reducing airflow resistance and noise. Throughout the entire operation, the optimized air outlet panel increases the air volume of the air conditioner fan and the heat exchange efficiency of the heat exchanger, making the air conditioner more energy-efficient, while reducing aerodynamic noise and improving the comfort of using the air conditioner.

[0118] From the above description, it can be seen that the embodiments of this utility model achieve the following technical effects: reducing air resistance, increasing airflow and heat exchange efficiency, making the air conditioner more energy-efficient; reducing turbulence and aerodynamic noise, improving user comfort; making the integrated injection-molded outer casing of the air outlet panel (including the main body, guide ring, and grille structure) feasible, thereby reducing the number of parts, lowering the overall cost, and improving market competitiveness; increasing airflow and heat exchange efficiency by reducing the resistance of the outer casing to airflow, thus improving energy efficiency and making the air conditioner more energy-efficient; improving airflow turbulence through the outer casing, reducing aerodynamic noise, and improving the comfort of air conditioner use; reducing the number of parts, lowering the overall cost, and improving market competitiveness.

[0119] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0120] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0121] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0122] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0123] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0124] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An air outlet panel, characterized in that, include: The main board body (10) is provided with an air outlet, and the main board body (10) has an air inlet side (11) and an air outlet side (12) arranged opposite to each other; A guide plate (20) is connected to the part of the main body (10) located at the periphery of the air outlet. At least a portion of the guide plate (20) protrudes relative to the main body (10) toward the air inlet side (11). A guide opening groove (21) is provided on the guide plate (20). The opening of the guide opening groove (21) is provided toward the air outlet side (12). The guide opening groove (21) is located on the air inlet side (11) or the air outlet side (12). The grille structure (30) includes a main air outlet grille (31) and an annular air outlet grille (32) connected to each other. The annular air outlet grille (32) is arranged around the periphery of the main air outlet grille (31), and the side of the annular air outlet grille (32) away from the main air outlet grille (31) is connected to the guide plate (20).

2. The air outlet panel according to claim 1, characterized in that, At least a portion of the periphery of the opening of the flow guide slot (21) is located on the air inlet side (11); and / or, The side of the annular air outlet grille (32) away from the main air outlet grille (31) is connected to the portion of the guide plate (20) located on the air inlet side (11); and / or, The end of the annular air outlet grille (32) near the main air outlet grille (31) and the main air outlet grille (31) are both located on the air outlet side (12).

3. The air outlet panel according to claim 1, characterized in that, The guide plate (20) has a guide inlet section (22) and a guide outlet section (23) arranged opposite to each other, the guide inlet section (22) being located on the side of the guide outlet section (23) closer to the air inlet side (11); Wherein, along the extension direction from the flow inlet section (22) to the flow outlet section (23), the flow-guiding cross-section of the flow inlet section (22) gradually decreases; and / or, The flow guide inlet section (22) is provided with an arc transition structure; and / or, The side of the annular air outlet grille (32) away from the main air outlet grille (31) is located in the guide opening groove (21) and is connected to the guide inlet section (22).

4. The air outlet panel according to claim 1, characterized in that, The guide plate (20) includes a first annular plate (24), a second annular plate (25), and a third annular plate (26) connected in sequence. One end of the first annular plate (24) is connected to the periphery of the air outlet. The first annular plate (24) is disposed opposite to the third annular plate (26) and is located on the outer ring of the third annular plate (26). The first annular plate (24), the second annular plate (25), and the third annular plate (26) form the guide opening groove (21). At least a portion of the first annular plate (24), at least a portion of the third annular plate (26), and the second annular plate (25) are all located on the air inlet side (11).

5. The air outlet panel according to claim 4, characterized in that, The thickness difference between the first annular plate (24) and the main plate (10) is 0 ≤ δT1 ≤ 0.3 mm; and / or, The thickness difference between the second annular plate (25) and the main plate (10) is 0 ≤ δT2 ≤ 0.3 mm; and / or, The thickness difference between the third annular plate (26) and the main body (10) is 0≤δT3≤0.3mm.

6. The air outlet panel according to claim 1, characterized in that, The annular air outlet grille (32) includes a first rib (321), which extends radially along the grille structure (30). There are multiple first ribs (321), and the multiple first ribs (321) are spaced apart along the periphery of the main air outlet grille (31). The main air outlet grille (31) includes a second rib (311) and a third rib (312). The second rib (311) extends radially along the grille structure (30), and the third rib (312) is an annular rib. There are multiple second ribs (311) and multiple third ribs (312). Multiple second ribs (311) are arranged circumferentially and spaced apart along the main air outlet grille (31). Multiple third ribs (312) are arranged radially and spaced apart along the main air outlet grille (31). Each third rib (312) is connected to multiple second ribs (311) to form a mesh grille.

7. The air outlet panel according to claim 6, characterized in that, The largest of the plurality of third ribs (312) is located at the end of the plurality of second ribs (311) and connected to the plurality of first ribs (321); and / or, The grille structure (30) is arranged opposite to the fan blade, and the angle between the first rib (321) along the rotation direction of the fan blade and the radial direction of the grille structure (30) is θ1, where 0°≤θ1≤60°.

8. The air outlet panel according to claim 1, characterized in that, The air outlet panel also includes: A recessed plate (40) is provided protruding towards the air inlet side (11). The outer ring of the recessed plate (40) is connected to the periphery of the air outlet. The inner ring of the recessed plate (40) is connected to the guide plate (20). The recessed plate (40) is provided to avoid the guide opening groove (21). The guide plate (20) is connected to the recessed plate (40). The recessed plate (40) and at least a portion of the annular air outlet grille (32) are arranged radially at intervals.

9. The air outlet panel according to claim 8, characterized in that, The inner ring of the recessed plate (40) is circular, and the outer ring of the recessed plate (40) is circular or polygonal; and / or, Along the direction from the air inlet side (11) to the air outlet side (12), the flow cross-sectional area of ​​the recessed plate (40) gradually increases; and / or, The annular air outlet grille (32) is radially spaced from the inner ring of the recessed plate (40); and / or, The grille structure (30) is arranged opposite to the fan blade, and the angle between the recessed plate (40) and the rotation axis of the fan blade is θ2, 10°≤θ2≤90°.

10. The air outlet panel according to any one of claims 1 to 9, characterized in that, The air outlet panel is integrally injection molded.

11. An outdoor unit for an air conditioner, characterized in that, The air outlet panel includes any one of claims 1 to 10.

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