Panel assembly and ceiling machine

Abstract

The application discloses a panel assembly and a ceiling machine, and belongs to the technical field of air conditioners. The panel assembly comprises a face frame and a guide vane plate. The face frame is provided with an air outlet channel. The guide vane plate is installed on the face frame and located at an air outlet of the air outlet channel. The guide vane plate comprises a plurality of guide vanes. The plurality of guide vanes are arranged along the width direction of the guide vane plate and have gaps between adjacent guide vanes for airflow to pass through. The guide vanes are obliquely arranged, and the air inlet end of the guide vanes faces the pressure side of the air outlet channel, and the air outlet end of the guide vanes faces the suction side of the air outlet channel. When the guide vane plate opens the air outlet, the outlet angle a of the guide vanes satisfies a≥10° and a≤30°, and the inlet angle b of the guide vanes satisfies b≥0° and b≤20°. The guide vane plate is designed as a multi-layer structure to expand the air supply area and reduce the air speed. Meanwhile, the related parameters of the guide vane plate are limited to avoid the problems of increased air resistance of the air outlet and short-circuiting of return air caused by the complex structure of the multi-layer guide vane plate.

Description

Technical Field

[0001] This application belongs to the technical field of air conditioning, and particularly relates to a panel assembly and a ceiling unit. Background Technology

[0002] Ceiling-mounted air conditioners are a common type of recessed air conditioner. The indoor unit is typically installed within the ceiling to maintain the overall aesthetics of the interior design. During operation, the ceiling-mounted unit uses a built-in fan to draw indoor air into the unit through air inlets around the panel. The drawn-in air undergoes heat exchange through an internal heat exchanger, and the treated air is then returned to the room through the air outlet, thus regulating the indoor temperature.

[0003] To meet the different air supply needs of users, ceiling air conditioners are usually equipped with air guides at the air outlet. The deflection angle of the air guide can be adjusted as needed to change the air supply direction and deliver cold or hot air to different areas of the room to meet the user's needs for local temperature regulation or overall air distribution.

[0004] However, due to the limitations of the air guide plate structure, the airflow in the related technologies is often concentrated, resulting in excessive air delivery distance and high local wind speed. The strong airflow blowing directly can make people feel too cold or too hot, reducing the user's physical comfort. Summary of the Invention

[0005] In view of the shortcomings of the related technologies, this application provides a panel assembly and ceiling unit that expands the air supply area and reduces the wind speed by designing the air guide plate as a multi-layer structure. At the same time, the relevant parameters of the air guide plate are limited to avoid problems such as increased air outlet resistance and short circuit of return air caused by the complex structure of the multi-layer air guide plate, and to avoid the air supply efficiency of the air conditioner decreases.

[0006] In a first aspect, this application provides a panel assembly, including: The face frame has an air outlet channel. An air guide plate is mounted on the faceplate and located at the air outlet of the air outlet channel; the air guide plate is configured to switch between a first state and a second state. In the first state, the air guide plate blocks the air outlet; in the second state, the air guide plate opens the air outlet. The air guide plate includes: Multiple guide vanes are arranged along the width of the air guide plate, with gaps between adjacent guide vanes to allow airflow to pass through; in the second state, the air guide plate has the guide vanes tilted, with the air inlet end of the guide vane facing the pressure side of the air outlet channel and the air outlet end of the guide vane facing the suction side of the air outlet channel. Define a first plane, which is perpendicular to the length direction of the air guide plate; Define a second plane, which is a vertical plane and perpendicular to the first plane; In the first state, the side of the guide vane facing the air outlet side of the face frame is defined as the front of the guide vane, and the side of the guide vane facing the air inlet side of the face frame is defined as the back of the guide vane. The plane tangent to the front surface of the guide vane at the air outlet is defined as the third plane; The plane tangent to the front surface of the guide vane at the air inlet is defined as the fourth plane; When the air guide plate is in the second state, the angle α between the third plane and the second plane satisfies: a≥10°, a≤30°; the angle b between the fourth plane and the second plane satisfies: b≥0°, b≤20°.

[0007] In this technical solution, the air guide plate is designed with multiple spaced guide vanes, which are inclined in space with gaps between adjacent vanes, creating a multi-layered structure. These multiple guide vanes disperse the originally concentrated airflow into multiple fine airflows, effectively reducing the wind speed at the air outlet and preventing discomfort caused by strong airflow blowing directly onto the human body, thus improving user comfort. Furthermore, the parameter range of the outlet and inlet angles of the guide vanes is limited when the air outlet is open, effectively overcoming the drawbacks of high wind resistance and easy recirculation caused by multi-layered air guide plates. While expanding the air outlet range and achieving refined airflow guidance, this ensures that the airflow can be smoothly discharged along a predetermined trajectory, thereby reducing the overall flow resistance of the air outlet channel while maintaining the air supply coverage area and preventing recirculation.

[0008] In some embodiments of this application, the first direction is from the side of the air guide plate facing the air inlet side of the face frame to the side of the air guide plate facing the air outlet side of the face frame; The included angle b is the inlet angle of the guide vane; each guide vane has its own corresponding inlet angle. In the second state, the inlet angle of the multiple guide vanes gradually increases along the first direction.

[0009] In the technical solution, when the airflow flows on the guide vane, it generally flows from the side of the guide vane facing the air inlet side of the face frame to the side of the guide vane facing the air outlet side of the face frame. Therefore, the first direction matches the flow direction of the airflow on the guide vane. The inlet angle of the guide vane is designed to gradually increase along the airflow direction, so as to form a smooth transition airflow acceleration channel on the guide vane. This effectively guides the airflow to gradually adjust its flow direction, avoiding eddies and impact losses caused by abrupt changes in cross-section when the airflow enters the guide vane gap. This makes the airflow flow more smoothly through the guide vane gap, increasing the air outlet coverage while ensuring the smoothness of the airflow and preventing local airflow stagnation or short-circuiting of the return air.

[0010] In some embodiments of this application, the distance from one end of the guide vane facing the air inlet side of the face frame to the other end of the guide vane facing the air outlet side of the face frame is the width of the guide vane; in the second state, the width of the multiple guide vanes gradually increases along the first direction.

[0011] In the technical solution, the width of the guide vane is gradually increased along the airflow direction so that the guide vane has a larger guiding area at the air outlet, which can more effectively capture and guide the edge airflow, enhance the directionality and convergence of the airflow, reduce the risk of boundary layer separation caused by the airflow leaving the guide vane surface, and prevent the edge airflow from spreading or flowing back due to insufficient kinetic energy, thereby effectively suppressing the return air short circuit while expanding the air supply range.

[0012] In some embodiments of this application, the width h of the guide vane satisfies: h≥8mm, h≤20mm; And / or, in the first direction, the distance from the back of the guide vane to the front of the adjacent guide vane is the interval between the adjacent guide vanes, and the interval g between the adjacent guide vanes satisfies: g≥1.5mm, g≤4mm.

[0013] In the technical solution, the guide vane width is limited to between 8mm and 20mm to ensure that the guide vanes have sufficient strength to resist wind pressure deformation. At the same time, the guide vanes also have a good rectification effect, avoiding the surge in wind resistance caused by excessively wide guide vanes and preventing insufficient guiding capacity caused by excessively narrow guide vanes. This ensures that the airflow can achieve stable wide-angle delivery under low resistance. By limiting the interval between adjacent guide vanes to between 1.5mm and 4mm, the gap size between adjacent guide vanes is limited. Without significantly increasing the outlet air resistance, the airflow is cut into a gentle stream. This ensures sufficient outlet air volume and uses the mutual constraint between guide vanes to stabilize the airflow direction, preventing disorderly diffusion of airflow at the outlet or mixing with the return airflow, thereby effectively avoiding return air short-circuiting.

[0014] In some embodiments of this application, a plane tangent to the pressure side of the air outlet is defined as the fifth plane; The plane tangent to the suction side of the air outlet is defined as the sixth plane; The angle c between the fifth plane and the second plane satisfies: c ≥ 30°, c ≤ 60°; The angle d between the sixth plane and the second plane satisfies: d ≥ 30°, d ≤ 50°.

[0015] In the technical solution, by limiting the angular range of the outlet angles on the pressure side and suction side of the air outlet channel, the air outlet direction is limited, the airflow path is optimized, and the airflow can achieve a good adhesion effect when leaving the air guide plate. This allows the high-speed airflow to be smoothly discharged close to the suction side wall, effectively eliminating the airflow stripping phenomenon that may occur at the edge of the air outlet, thereby reducing the aerodynamic noise at the air outlet end, and preventing the return air short circuit caused by the disorderly diffusion of airflow at the outlet.

[0016] In some embodiments of this application, the included angle d and included angle a satisfy: da≥0°, da≤30°.

[0017] In the technical solution, by limiting the range of the difference between the suction side angle of the air outlet and the outlet angle of the guide vane, the direction of the airflow passing through the guide plate is made consistent with the direction of the airflow guided by the suction side wall of the air outlet channel. This avoids excessive difference in the outlet angles of the two airflows, thereby effectively preventing the two airflows from causing severe interference, collision, or turbulence due to conflicting flow directions or excessive angle deviations. This ensures smooth convergence and unobstructed discharge of airflow at the air outlet, further reducing airflow resistance and effectively preventing short-circuiting of return air caused by airflow turbulence.

[0018] In some embodiments of this application, a plane tangent to the pressure side of the air outlet at the air inlet of the air outlet is defined as the seventh plane; The plane tangent to the suction side of the air outlet at the air inlet is defined as the eighth plane; The angle e between the seventh plane and the second plane satisfies: e≥0°, e≤20°; The angle f between the eighth plane and the second plane satisfies: f≥0°, f≤20°.

[0019] In the technical solution, the inlet angles of the pressure side and suction side at the air inlet of the air outlet are limited to optimize the flow channel shape of the air outlet in the air inlet section. This makes the transition of air into the air outlet smoother, reduces local resistance loss at the air inlet, reduces turbulence caused by airflow impact, and thus avoids the risk of short-circuiting of return air due to poor air intake, thereby improving the overall air supply efficiency.

[0020] In some embodiments of this application, the included angle b and included angle e satisfy: be≥0°, be≤10°.

[0021] In the technical solution, by limiting the difference between the inlet angle of the guide vane and the inlet angle of the pressure side of the outlet air passage, a smooth transition of airflow is achieved between the pressure side of the outlet air passage and the guide vane. This minimizes the sudden resistance of the airflow and ensures that the airflow can smoothly adhere to the surface of the guide vane. It effectively prevents the airflow from separating at the root of the guide vane and being drawn into the return air area, thereby avoiding return air short circuits and reducing operating noise.

[0022] In some embodiments of this application, the air guide plate further includes connecting ribs, which are arranged along the width direction of the air guide plate and are simultaneously connected to multiple guide vanes; the connecting ribs are connected to the back of the guide vanes.

[0023] In the technical solution, multiple guide vanes are connected into a whole by connecting ribs, which enhances the structural rigidity of the guide vane and prevents the guide vanes from vibrating or deforming at high speed under the impact of high-speed airflow. This ensures the stability of airflow and avoids wind resistance fluctuations and airflow turbulence caused by structural vibration.

[0024] Secondly, this application provides a ceiling machine, including the panel assembly of the first aspect.

[0025] In this technical solution, the air guide plate is designed with multiple spaced guide vanes, creating a multi-layered structure. This multi-layered structure breaks down the originally concentrated, large-volume airflow into multiple finer, gentler airflows, thereby increasing the coverage area of ​​the airflow and allowing the cool and warm air to diffuse more evenly to every corner of the room. This effectively avoids the strong, direct airflow and excessive local temperature differences common in traditional ceiling-mounted air conditioners, improving user comfort. Furthermore, addressing the technical shortcomings of multi-layered air guide plate structures, which are often complex and prone to increased airflow resistance and short-circuiting of return air due to airflow being drawn into the return air vent, this solution overcomes these shortcomings by limiting parameters such as the angles of the pressure and suction sides of the air outlet channel and the inlet and outlet angles of the guide vanes. This achieves wide-angle airflow while successfully overcoming these drawbacks. By limiting these parameters, the shape of the air outlet channel and the guide vane shape are defined, so that the airflow can smoothly turn in accordance with the geometry of the channel, avoiding airflow separation, vortex accumulation, and disorderly diffusion of airflow at the outlet into the return air inlet. Thus, while ensuring a large range of air supply, the air outlet resistance is reduced, the return air short-circuit is effectively avoided, and the heat exchange efficiency of the whole unit is improved.

[0026] In the above embodiments, a panel assembly and ceiling unit design the air guide plate as a multi-layer structure to increase the air supply area and reduce the wind speed. At the same time, the relevant parameters of the air guide plate and the relevant parameters of the air outlet channel are limited to avoid problems such as increased air outlet resistance and short circuit of return air caused by the complex structure of the multi-layer air guide plate, and to avoid the air supply efficiency of the air conditioner decreasing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of one embodiment of the panel component of this application; Figure 2 This is a structural schematic diagram of another embodiment of the panel component of this application; Figure 3 This is a schematic diagram of the structure of the face frame in one embodiment of the panel component of this application; Figure 4 This is a cross-sectional view of the front frame without the air guide plate installed in one embodiment of the panel assembly of this application; Figure 5 yes Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is a schematic diagram of the air guide plate in one embodiment of the panel assembly of this application; Figure 7 This is a structural schematic diagram of the air guide plate at another angle in one embodiment of the panel assembly of this application; Figure 8This is a cross-sectional view of the air guide plate in one embodiment of the panel assembly of this application; Figure 9 This is a schematic diagram of the structure of the air guide plate in the first state in one embodiment of the panel assembly of this application; Figure 10 This is a schematic diagram of the air guide plate in the second state in one embodiment of the panel assembly of this application; Figure 11 This is a schematic diagram of the parameters of the air guide plate in the second state in one embodiment of the panel assembly of this application; Figure 12 This is a simulation analysis diagram of the air guide plate in related technologies; Figure 13 This is a simulation analysis diagram of the air guide plate in one embodiment of the panel component of this application.

[0028] In the diagram, 100 is the front frame; 200 is the air guide plate; 300 is the air inlet grille; 400 is the second plane; 500 is the third plane; 600 is the fourth plane; 700 is the fifth plane; 800 is the sixth plane; 900 is the seventh plane; and 1000 is the eighth plane. 101. Air outlet duct; 102. Air inlet section; 103. Air intake section; 1011. Pressure side; 1012. Suction side; 110. Face frame body; 120. Foam parts; 201. Ventilation Department; 210. Guide vane; 220. Rotating shaft; 230. Connecting rib. Detailed Implementation

[0029] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0030] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0031] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0032] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0033] Ceiling-mounted air conditioners are a type of embedded indoor unit in central air conditioning systems. They are concealed air conditioning heat exchange devices installed inside the building's ceiling. Compared to conventional wall-mounted or floor-standing air conditioners, ceiling-mounted units have no exposed body; they are entirely embedded within the ceiling, maximizing space saving on floor and wall space and offering greater spatial adaptability. Ceiling-mounted units serve only as indoor heat exchange terminals and fall under the category of indoor air conditioning units. In actual use, they need to work in conjunction with outdoor air conditioning units, completing the refrigerant heat exchange cycle through a refrigerant circulation system to stably achieve cooling, heating, and air temperature regulation functions.

[0034] The ceiling-mounted unit includes a housing, with the top and bottom of the housing being opposite ends. The height of the housing is measured from the top to the bottom. The bottom of the housing has an open structure to facilitate the assembly of internal components.

[0035] The ceiling unit includes a panel assembly, which is located at the opening at the bottom of the housing to seal the bottom of the housing. The panel assembly and the housing work together to form the complete appearance of the ceiling unit and the embedded installation body, ensuring the integrity and aesthetics of the equipment after ceiling installation.

[0036] like Figures 1-2 As shown, the panel assembly includes a face frame 100, and an air inlet 102 is provided in the middle part of the face frame 100, through which indoor air enters the housing.

[0037] like Figure 3 As shown, an air outlet is provided at the outer edge of the face frame 100, and the air inside the ceiling unit is output to the room through the air outlet.

[0038] In this embodiment, there are four air outlets arranged around the air inlet 102.

[0039] The ceiling unit includes a fan, which is located inside the casing. The fan impeller rotates at high speed to generate airflow pressure difference. On the one hand, it draws indoor air into the casing through the air inlet 102, and on the other hand, it discharges the air that has completed heat exchange in the casing through the air outlet, so as to realize continuous circulation of indoor air.

[0040] The ceiling unit includes a heat exchanger, which is located inside the casing and is used to exchange heat with the air passing through it.

[0041] In some ceiling-mounted fans, the heat exchanger surrounds the outer periphery of the fan. In the horizontal projection plane, the heat exchanger is located between the air inlet 102 and the air outlet, and the heat exchanger divides the internal cavity of the casing into a first region and a second region. The second region is located on the outer periphery of the first region, the air inlet 102 is connected to the first region, and the air outlet is connected to the second region.

[0042] Driven by the fan, indoor air enters the first zone through the air inlet 102. The indoor air in the first zone flows through the heat exchanger for heat exchange and then enters the second zone. It is then discharged outwards into the room through the air outlet, thereby enabling the ceiling system to cool and heat, thereby regulating the indoor temperature and achieving a comfortable temperature for the user.

[0043] In this embodiment, the air inlet side of the face frame 100 faces upward toward the fan, and the air outlet side of the face frame 100 faces downward.

[0044] like Figures 1-2 As shown, the panel assembly includes an air inlet grille 300, which is detachably connected to the face frame 100 and located at the air inlet 102. The air inlet grille 300 forms a shield and protection for the air inlet 102, effectively blocking external debris and large dust particles from entering the casing, avoiding problems such as fan jamming, dust accumulation in internal components, and abnormal operating noise, thereby improving the stability and service life of the equipment.

[0045] When the ceiling unit is cooling, the low-temperature airflow is delivered to the indoor space through the air outlet. Affected by the low-temperature airflow, the overall temperature of the frame 100 decreases. When the surface temperature of the frame 100 is lower than the dew point temperature of the indoor air, water vapor in the hot and humid indoor air is very likely to accumulate and condense at the frame 100, air outlet, and other locations, forming condensation droplets.

[0046] Based on this, in related technologies, a mounting part is usually provided on the frame 100, and a foaming component 120 is installed on the mounting part. The airflow flows through the inside of the foaming component 120 and is then output to the room from the air outlet. The foaming component 120 is used to block the heat conduction between the airflow and the frame 100, so as to avoid the problem of condensation and dripping water caused by the low temperature airflow under the cooling condition, which causes the outer wall temperature of the frame 100 to be lower than the ambient dew point temperature. It can also reduce the loss of cold or heat through the frame 100 during the air supply process, thereby reducing the energy consumption of the air conditioner.

[0047] Specifically, such as Figure 2 and Figure 4 As shown, the face frame 100 includes a face frame body 110, and a mounting part is provided on the side of the face frame body 110; a foaming part 120 is provided in the mounting part, and the outer wall of the foaming part 120 is in contact with the inner wall of the mounting part; an air outlet channel 101 for airflow is formed in the foaming part 120, wherein the air outlet is correspondingly provided with the air outlet of the air outlet channel 101, and the airflow is output from the air outlet after flowing through the air outlet channel 101.

[0048] In some embodiments, the air outlet is located at the air outlet of the air outlet channel 101.

[0049] Furthermore, the foam component 120 is made of foam material, so as to use the porous insulation structure of the foam component 120 with low thermal conductivity to wrap the airflow, thereby effectively blocking the airflow from the face frame 100.

[0050] In some embodiments, the mounting part is a mounting channel provided on the side of the face frame body 110, the inlet of the mounting part is located on the air inlet side of the face frame 100, the outlet of the mounting part is located on the air outlet side of the face frame 100, and the foaming component 120 is provided in the mounting part from the inlet of the mounting part.

[0051] Furthermore, the air inlet 102 is located on the middle part of the face frame body 110, and four mounting parts are provided, with the four mounting parts surrounding the air inlet 102.

[0052] like Figure 1 and Figure 2 As shown, the panel assembly includes an air guide plate 200, which is rotatably connected to the face frame 100 and correspondingly disposed at the air outlet of the air outlet channel 101. The air guide plate 200 is configured to switch between a first state and a second state. The air outlet is opened and closed by rotating the air guide plate 200, and the air outlet angle can be adjusted to adapt to different air supply angle requirements.

[0053] like Figure 9 As shown, in the first state, the air guide plate 200 blocks the air outlet; as Figure 10 and Figure 11 As shown, in the second state, the air guide plate 200 opens the air outlet.

[0054] In related technologies, the air guide plate 200 has a single-layer structure. The air guide plate 200 delivers concentrated air, which can easily form a high-speed jet that blows directly onto the human body, causing localized overcooling or overheating and resulting in poor physical comfort.

[0055] Based on this, the air guide plate 200 is designed with a multi-layer structure to disperse the originally concentrated airflow into multiple fine airflows, effectively reducing the local wind speed at the air outlet, thereby avoiding the discomfort caused by strong airflow blowing directly on the human body and improving the user's physical comfort.

[0056] Specifically, such as Figures 6-8As shown, the air guide plate 200 includes guide vanes 210. The two ends of the guide vanes 210 correspond to the air inlet side and air outlet side of the face frame 100, respectively. The end of the guide vane 210 facing the air outlet side of the face frame 100 is biased towards the suction side 1012 of the air outlet channel 101. Multiple guide vanes 210 are provided, and the multiple guide vanes 210 are arranged along the width direction of the air guide plate 200. There is a gap between adjacent guide vanes 210 to jointly define a ventilation section 201. The ventilation section 201 is used to connect the two sides of the air guide plate 200 so that airflow can pass through the air guide plate 200. The opening direction of the ventilation section 201 is downward and inclined towards the suction side 1012 of the air outlet channel 101.

[0057] Furthermore, the guide vane 210 is inclined at the air outlet of the air outlet channel 101, with the air inlet end of the guide vane 210 facing the pressure side 1011 of the air outlet channel 101 and the air outlet end of the guide vane 210 facing the suction side 1012 of the air outlet channel 101.

[0058] In some embodiments, when the air guide plate 200 is in the first state, the projection of the plurality of guide vanes 210 in the horizontal plane covers the air outlet, so that the air guide plate 200 effectively blocks the air outlet when in the first state.

[0059] In this embodiment, when the air guide plate 200 is in the first state, the guide vane 210 is inclined downward and the lower end of the guide vane 210 is directed toward the suction side 1012 of the air outlet channel 101.

[0060] For ease of description, in the first state, the side of the air guide plate 200 facing the air outlet side of the face frame 100 is defined as the leeward side of the air guide plate 200, and the side of the air guide plate 200 facing the air inlet side of the face frame 100 is defined as the windward side of the air guide plate 200. In this embodiment, in the first state, the leeward side of the air guide plate 200 is arranged downward, and the windward side of the air guide plate 200 is arranged upward.

[0061] When the air guide plate 200 is in the first state, the side of the guide vane 210 facing the air outlet side of the face frame 100 is the front side of the guide vane 210, and the side of the guide vane 210 facing the air inlet side of the face frame 100 is the back side of the guide vane 210.

[0062] Furthermore, such as Figure 7 As shown, the air guide plate 200 includes a connecting rib 230, which is arranged along the width direction of the air guide plate 200. The connecting rib 230 is connected to multiple guide vanes 210. By using the connecting rib 230 to connect the dispersed guide vanes 210 into a whole structure, not only is the overall mechanical strength and rigidity of the air guide plate 200 improved, preventing the guide vanes 210 from shaking or deforming under long-term wind force, but the manufacturing process and assembly difficulty of the air guide plate 200 are also simplified, which is conducive to improving the product yield and production efficiency.

[0063] It should be noted that the connection between the connecting rib 230 and the guide vane 210 is located on the back of the guide vane 210 to hide the connecting rib 230 and ensure the aesthetics of the leeward side of the wind deflector 200.

[0064] In some embodiments, multiple connecting ribs 230 are provided, and the multiple connecting ribs 230 are arranged along the length direction of the air guide plate 200 to increase the connection effect of the multiple guide vanes 210.

[0065] Furthermore, such as Figure 7 As shown, the air guide plate 200 has connecting ribs 230 at both ends along its length; a rotating shaft 220 is provided on the connecting rib 230 at the end of the air guide plate 200, and the rotating shaft 220 is rotatably connected to the face frame body 110.

[0066] like Figure 3 As shown, the faceplate body 110 is provided with a receiving part 103, which is isolated from the mounting part; a motor for driving the air guide plate 200 to rotate is installed in the receiving part 103; the rotating shaft 220 passes through the side wall of the receiving part 103 and extends into the receiving part 103 to be connected to the motor.

[0067] In this embodiment, the face frame body 110 has a quadrilateral structure, the mounting part is located on the side of the face frame body 110, and the receiving part 103 is located at the corner of the face frame body 110.

[0068] Due to the complex structure of the multi-layer air guide plate 200, it is easy to cause problems such as increased air resistance at the air outlet and short circuit of return air, thereby reducing the air supply efficiency of the air conditioner.

[0069] Based on this, in this application, by limiting the relevant parameters of the air guide plate 200, the air outlet direction is limited, which effectively overcomes the problems of increased wind resistance and short circuit of return air caused by the multi-layer air guide plate 200, and ensures the balance between the cooling and heating efficiency and the air supply performance of the air conditioner.

[0070] Specifically, a first plane is defined, which is perpendicular to the length direction of the air guide plate 200; a second plane 400 is defined, which is a vertical plane and perpendicular to the first plane.

[0071] It should be noted that there are multiple first planes and multiple second planes 400. The multiple first planes are parallel to each other, the multiple second planes 400 are parallel to each other, and any first plane and any second plane 400 are perpendicular to each other.

[0072] It should also be noted that since the air guide plate 200 rotates around its axis when switching between the first state and the second state, the first plane is always perpendicular to the air guide plate 200 during the rotation of the air guide plate 200, and the second plane 400 is always perpendicular to the first plane. Therefore, the first plane and the second plane 400 can be considered as fixed planes and will not change with the rotation of the air guide plate 200.

[0073] like Figure 11 As shown, the plane tangent to the front of the guide vane 210 at the air outlet is defined as the third plane 500; the angle α between the third plane 500 and the second plane 400 is the outlet angle of the guide vane 210. During the rotation of the air guide plate 200, since the third plane 500 is changing, the angle between the third plane 500 and the second plane 400 is also changing, that is, the outlet angle of the guide vane 210 is changing.

[0074] When the air guide plate 200 is in the second state, the angle α between the third plane 500 and the second plane 400 satisfies: α ≥ 10°, α ≤ 30°, so that the airflow can obtain a good adhesion effect when leaving the guide vane 210, ensuring that the high-speed airflow is closely attached to the suction side 1012 wall and smoothly discharged, thereby effectively eliminating the airflow stripping phenomenon at the edge of the air outlet, reducing aerodynamic noise and preventing disordered airflow diffusion.

[0075] If a < 10°, the air outlet angle of the guide vane 210 is too gentle, and the airflow cannot effectively diffuse outward. Instead, it will concentrate and spray vertically downward, forming a high-speed direct airflow, causing users to feel too cold or too hot in certain areas. At the same time, the air supply coverage area is reduced, and the uniformity of indoor temperature becomes worse.

[0076] If a > 30°, the air outlet angle of the guide vane 210 will be too large, and the airflow will spread outwards excessively and disorderly, easily deviating from the preset air supply trajectory. Some airflow will be directly drawn into the air inlet area, causing a short circuit in the return air, which will greatly reduce the heat exchange efficiency of the air conditioner and also generate turbulent airflow noise.

[0077] When a=10° or a=30°, the airflow has a good adhesion effect when leaving the guide vane 210. The airflow is smoothly discharged close to the suction side 1012 wall, avoiding airflow stripping at the air outlet and reducing aerodynamic noise.

[0078] like Figure 11 As shown, the plane tangent to the front of the guide vane 210 at the air inlet is defined as the fourth plane 600; the angle b between the fourth plane 600 and the second plane 400 is the inlet angle of the guide vane 210.

[0079] Similarly, during the rotation of the air guide plate 200, since the fourth plane 600 is changing, the angle between the fourth plane 600 and the second plane 400 is also changing, that is, the inlet angle of the guide vane 210 is changing.

[0080] When the air guide plate 200 is in the second state, the angle b between the fourth plane 600 and the second plane 400 satisfies: b≥0°, b≤20°, so that the air inlet end of the guide vane 210 can form a smooth transition structure with the air inlet section of the air outlet channel 101. When the airflow enters the multi-layer guide vane 210 structure, there will be no abrupt turning or compression change. It can evenly adhere to the surface of the guide vane 210 and flow, effectively reducing the local resistance loss and vortex accumulation problem when the airflow enters. While reducing wind resistance, it lays the foundation for subsequent uniform flow distribution and stable air delivery, ensuring the overall air delivery efficiency of the machine.

[0081] If b < 0°, the air inlet end of the guide vane 210 will tilt in the opposite direction, which will block the airflow and increase the resistance of the airflow entering the ventilation section 201, resulting in air volume loss and reduced air delivery efficiency. At the same time, the airflow impacting the root of the guide vane 210 will generate a large amount of turbulence, causing abnormal noises in the equipment operation.

[0082] If b > 20°, the inlet angle of the guide vane 210 is too large. When the airflow enters the structure of the guide vane 210, the flow direction changes drastically. This can easily cause airflow separation and accumulation vortices at the root of the guide vane 210, which not only increases wind resistance but also causes some airflow to flow back, inducing a short-circuit problem in the return air.

[0083] When b=0° and b=20°, the air inlet end of the guide vane 210 and the air inlet section of the outlet channel 101 form a smooth transition structure. When the airflow enters the guide vane 210, it can evenly adhere to the surface of the guide vane 210 and flow, resulting in small local resistance loss when the airflow enters.

[0084] The first direction is from the side of the air guide plate 200 facing the air inlet side of the face frame 100 to the side of the air guide plate 200 facing the air outlet side of the face frame 100.

[0085] It should be noted that the first direction matches the airflow direction on the air guide plate 200. The first direction can be considered to a certain extent as the airflow direction along the air guide plate 200.

[0086] Each guide vane 210 has its own inlet angle and outlet angle.

[0087] In the second state, the inlet angle of the multiple guide vanes 210 gradually increases along the first direction so that the guide vanes 210 can adapt to the changes in the velocity and pressure distribution of the airflow in the width direction of the air outlet channel 101, guide the airflow to flow more naturally against the surface of the guide vanes 210, reduce the frictional resistance and local eddies of the airflow on the surface of the guide vanes 210, thereby macroscopically reducing wind resistance and improving the uniformity of the air outlet.

[0088] like Figure 11 As shown, the distance from the end of the guide vane 210 facing the air inlet side of the frame 100 to the end of the guide vane 210 facing the air outlet side of the frame 100 is the width of the guide vane 210. In the second state, the width of the multiple guide vanes 210 gradually increases along the first direction so that the guide vane 200 has a larger guiding area in the air outlet section, which can more effectively capture and guide the edge airflow, enhance the directionality and convergence of the airflow, reduce the risk of the airflow leaving the surface of the guide vane 210 and causing boundary layer separation, and prevent the edge airflow from diffusing or recirculating due to insufficient kinetic energy, thereby effectively suppressing the return air short circuit while expanding the air supply range.

[0089] The width h of the guide vane 210 satisfies: h≥8mm, h≤20mm, so that the guide vane 210 has sufficient strength to resist wind pressure deformation, while also providing good rectification effect, avoiding the surge in wind resistance caused by the guide vane 210 being too wide, and also preventing insufficient guiding capacity caused by the guide vane 210 being too narrow, ensuring stable wide-angle delivery of airflow under low resistance conditions.

[0090] If h < 8mm, the width of the guide vane 210 is too narrow and the rigidity of the guide vane 210 is insufficient. Under the long-term action of the circulating airflow pressure, it is prone to shaking, deformation or even breakage, which affects the service life of the equipment. In addition, the guide coverage is insufficient and cannot effectively disperse the concentrated airflow. The air delivery still has the problem of high-speed jet, resulting in poor comfort.

[0091] If h > 20mm, the width of the guide vane 210 will be too large, which will occupy the air outlet space, increase the contact friction resistance between the airflow and the guide vane 210, and cause the overall air resistance to surge, the air volume to decrease, the air conditioning heat exchange efficiency to drop significantly, and the energy consumption to increase accordingly.

[0092] When h=8mm or h=20mm, the guide vane 210 has high strength, can effectively resist wind pressure deformation, and also has a good rectification effect.

[0093] like Figure 11 As shown, in the second state, the distance from the back of the guide vane 210 to the front of the adjacent guide vane 210 in the first direction is the interval between the adjacent guide vanes 210. The interval g between the adjacent guide vanes 210 satisfies: g≥1.5mm, g≤4mm. This is to uniformly cut the originally concentrated large airflow into multiple fine and gentle airflows without losing the core airflow volume, thus eliminating the feeling of high-speed direct blowing. At the same time, a stable airflow constraint channel can be formed between the guide vanes 210 to limit the airflow direction, prevent the disorderly diffusion of the airflow at the outlet, effectively block the mixing and interference of the outlet airflow and the return airflow, avoid the problem of return air short circuit, and ensure the uniformity and stability of the air supply.

[0094] It should be noted that the interval g is also the dimension of the ventilation section 201.

[0095] If g < 1.5 mm, the gap between the guide vanes 210 is too small, the airflow space is greatly compressed, the air outlet resistance increases sharply, which directly leads to insufficient air volume, serious reduction in air supply speed, and slower heating and cooling speed of the air conditioner.

[0096] If g > 4 mm, the gap between the guide vanes 210 is too large, which cannot effectively disperse the concentrated airflow and the airflow constraint capability fails. The airflow at the outlet is prone to disorderly diffusion, and a large amount of outlet airflow will be sucked into the inlet area nearby, causing serious return air short circuit and significantly reducing the efficiency of heat exchange.

[0097] When g=1.5mm or g=4mm, the size of the ventilation section 201 is moderate, which can evenly cut the originally concentrated large airflow into multiple fine and soft airflows, eliminate the feeling of high-speed direct blowing, effectively block the mixing and interference of the exhaust airflow and return airflow, avoid the problem of return air short circuit, and ensure the uniformity and stability of air supply.

[0098] In some embodiments, the number n of guide vanes 210 on each air guide plate 200 satisfies: n≥2, n≤10, so as to match the air outlet area of ​​the ceiling unit to achieve a reasonable air distribution layout. This can not only disperse the concentrated airflow and expand the air supply coverage through the structure of multiple guide vanes 210 to achieve gentle air supply throughout the entire area, but also avoid structural redundancy and wind resistance accumulation due to an excessive number of guide vanes 210. This effectively balances the gentleness of the air supply, the air volume and the air supply efficiency, and adapts to the normal air outlet conditions of the ceiling unit.

[0099] If n < 2, the number of guide vanes 210 is too small to form a multi-layer diversion structure, resulting in extremely poor airflow dispersion, concentrated air supply, excessively high wind speed, strong discomfort from direct airflow, narrow air supply coverage, and uneven indoor temperature distribution.

[0100] If n > 10, the number of guide vanes 210 is too large, the air outlet area structure is too dense, the airflow friction resistance is greatly increased, resulting in serious air volume loss and reduced air supply efficiency. At the same time, the excess guide vanes 210 will increase the probability of airflow turbulence, which is prone to generating air supply noise and local eddies.

[0101] When n=2 or n=10, the number of guide vanes 210 is moderate, which can effectively disperse the concentrated airflow, expand the air supply coverage, and provide gentle and efficient air supply.

[0102] like Figure 9 As shown, the air outlet duct 101 includes a pressure side 1011, which is located near the middle part of the face frame body 110.

[0103] like Figure 9As shown, the air outlet channel 101 includes a suction side 1012, which is located near the edge of the face frame body 110.

[0104] It should be noted that the pressure side 1011 and suction side 1012 of the air outlet duct 101 are common knowledge in the field and will not be described in detail here.

[0105] In this application, by limiting the relevant parameters of the air outlet channel 101, the air outlet channel 101 and the air guide plate 200 are better matched, thereby better guiding the airflow, reducing the air outlet resistance, and preventing short circuit of the return air.

[0106] like Figure 11 As shown, the plane tangent to the pressure side 1011 at the air outlet is defined as the fifth plane 700; the angle c between the fifth plane 700 and the second plane 400 is the outlet angle of the pressure side 1011.

[0107] The angle c between the fifth plane 700 and the second plane 400 satisfies: c≥30°, c≤60°, in order to optimize the flow channel profile at the end of the air outlet channel 101, guide the airflow after heat exchange to smoothly turn and flow out evenly along the channel wall, give full play to the airflow wall adhesion effect, eliminate the phenomenon of airflow stripping and detachment at the edge of the air outlet, reduce the aerodynamic noise at the end of the air outlet, and limit the outward divergence angle of the airflow to avoid disorderly diffusion of airflow into the air inlet, effectively avoid the problem of return air short circuit, and ensure that the air supply path is regular and the air volume is stable.

[0108] If c < 30°, the outlet inclination angle of pressure side 1011 is too gentle, the airflow turning resistance is large, and it is easy to accumulate at the channel outlet to form vortices, resulting in poor airflow, reduced air volume, and severe vertical downward airflow, resulting in a narrow air supply range.

[0109] If c > 60°, the outlet tilt angle of pressure side 1011 will be too large, the airflow will spread outward significantly and the flow direction will be out of control. It is very easy to merge and mix with the surrounding return airflow, causing serious return air short circuit, resulting in internal loss of cold and hot air volume, greatly reducing the heat exchange efficiency of air conditioning, and at the same time, the turbulent airflow will generate obvious operating noise.

[0110] When c=30° or c=60°, the airflow smoothly turns and flows out evenly along the pressure side 1011, and the airflow is not prone to separation or detachment at the edge of the air outlet, resulting in low aerodynamic noise at the air outlet end.

[0111] like Figure 11 As shown, the plane tangent to the suction side 1012 at the air outlet is defined as the sixth plane 800; the angle d between the sixth plane 800 and the second plane 400 is the outlet angle of the suction side 1012.

[0112] The angle d between the sixth plane 800 and the second plane 400 satisfies: d≥30°, d≤50°, to limit the airflow direction and ensure that the airflow can obtain a good adhesion effect when leaving the air guide plate 200, so that the high-speed airflow can be smoothly discharged close to the suction side 1012 wall, effectively eliminating the airflow stripping phenomenon that may occur at the edge of the air outlet, thereby reducing the aerodynamic noise at the end of the air outlet channel 101, and preventing the return air short circuit caused by the disorderly diffusion of airflow at the outlet.

[0113] If d < 30°, the air outlet channel 101 will contract too quickly or be insufficiently guided, and the airflow will not be able to obtain enough adhesion kinetic energy, which will easily cause peeling and vortex at the edge of the air outlet. If d > 50°, the air outlet channel 101 expands too much, and the airflow is easily separated from the suction side 1012 when it flows through the air outlet channel 101, resulting in a reduction in the effective air outlet area, an increase in wind resistance, and the airflow is easily dispersed after being discharged, increasing the risk of return air short circuit.

[0114] When d=30° or d=50°, the airflow can have a good adhesion effect when it leaves the air guide plate 200, and the airflow can be smoothly discharged close to the suction side 1012 wall, and the aerodynamic noise at the end of the air outlet duct 101 is small.

[0115] In the second state, the air guide plate 200 has its air inlet end facing the pressure side 1011 and its air outlet end facing the suction side 1012. Therefore, in this application, the difference between the outlet angle of the suction side 1012 and the outlet angle of the guide plate 210 is also limited so that the airflow guided by the guide plate 210 is roughly in the same direction as the airflow flowing along the suction side 1012, thus avoiding interference between the two airflows.

[0116] In some embodiments of this application, the included angles d and a satisfy: da≥0°, da≤30°, so that the airflow direction flowing through the air guide plate 200 matches the airflow direction guided by the suction side 1012, avoiding excessive difference in the outlet angles of the two airflows, thereby effectively preventing the two airflows from causing severe interference, collision or turbulence due to conflicting flow directions or excessive angle deviation, ensuring smooth convergence and smooth discharge of airflow at the outlet, which not only further reduces the outlet resistance, but also effectively avoids the return air short-circuit phenomenon caused by airflow turbulence.

[0117] If da < 0°, the difference between the air outlet angle of the guide vane 210 and the air outlet angle of the suction side 1012 is small. The airflow delivered by the guide vane 210 will form a reverse angle with the airflow guided by the suction side 1012. The two airflows collide and interfere with each other, generating a large number of turbulent vortices, which greatly increases the air outlet resistance and operating noise.

[0118] If da > 30°, the air outlet angle of guide vane 210 deviates too much from the air outlet angle of suction side 1012, the airflow convergence is seriously misaligned, some airflow will deviate from the mainstream air supply trajectory and diffuse disorderly into the air intake area, causing obvious return air short circuit, resulting in internal consumption of air conditioning cooling and heating, and a significant decrease in heat exchange efficiency.

[0119] When da=0° or da=30°, the difference between the air outlet angle when the airflow exits the guide plate 200 and the air outlet angle when the airflow exits the suction side 1012 is small. The impact caused by the conflict of the two airflows due to the flow direction or the angle deviation is small. The airflows converge smoothly at the air outlet, and the air outlet resistance is small.

[0120] like Figure 11 As shown, the plane tangent to the pressure side 1011 at the air inlet of the air outlet 101 is defined as the seventh plane 900; the angle e between the seventh plane 900 and the second plane 400 is the inlet angle of the pressure side 1011.

[0121] The angle e between the seventh plane 900 and the second plane 400 satisfies: e≥0°, e≤20°, which limits the flow channel shape of the air outlet channel 101 in the air inlet section, making the transition of air into the air outlet channel 101 smoother, reducing local resistance loss at the air inlet, reducing airflow impact and turbulence caused by abrupt changes in the flow channel, thereby avoiding the risk of short-circuiting of return air due to poor air intake and improving the overall air supply efficiency.

[0122] If e < 0°, the airflow will directly impact the wall of the pressure side 1011 when it enters the channel, generating huge local resistance.

[0123] If e > 20°, the shape of the air outlet channel 101 will change drastically. When the airflow enters the air outlet channel 101, it is easy to generate flow separation and vortex zone, which will increase the air intake resistance, not only reducing the air volume, but also potentially inducing return air short circuit due to the turbulent inlet airflow.

[0124] When e=0° or e=20°, the transition of air into the air outlet channel 101 is smooth, with small local resistance loss and high overall air supply efficiency.

[0125] like Figure 11 As shown, the plane tangent to the suction side 1012 at the air inlet is defined as the eighth plane 1000; the angle f between the eighth plane 1000 and the second plane 400 is the inlet angle of the suction side 1012.

[0126] The angle f between the eighth plane 1000 and the second plane 400 satisfies: f≥0°, f≤20°, so that the air intake section of the suction side 1012 forms a smooth and gradually changing flow channel structure, so that the airflow enters the air outlet channel 101 from the internal cavity of the casing without abrupt deformation or hard obstruction, reducing the local impact resistance and turbulence loss when the airflow enters, making the airflow transition smoother and more stable, reducing the risk of backflow caused by poor air intake, and effectively improving the overall air supply efficiency and airflow stability.

[0127] If f < 0°, the reverse bulge of the structure of the 1012 air intake section on the suction side will block the airflow, causing obstruction of airflow, sudden increase in local pressure, and the generation of a large amount of turbulence and noise, resulting in severe airflow loss.

[0128] If f > 20°, the angle of inlet section 1012 on the suction side will change drastically, and the airflow direction will be deflected sharply when it enters the channel. This will easily lead to airflow separation and wall de-flow, causing local vortex accumulation. This will not only increase wind resistance and reduce air supply efficiency, but also induce a continuous risk of return air short circuit.

[0129] When f=0° or f=20°, the air inlet section of the suction side 1012 forms a smooth and gradually changing flow channel structure. The airflow enters the air outlet channel 101 from the internal cavity of the casing without abrupt deformation or hard obstruction. The local impact resistance and turbulence loss during airflow inlet are small, the airflow transition is smooth and stable, the overall air supply efficiency is high, and the airflow stability is good.

[0130] When the ceiling fan is working, the air guide plate 200 is in the second state. After the airflow enters the air outlet channel 101, it flows in the air outlet channel 101 for a period of time before contacting the air guide plate 200. In order to make the airflow transition smoothly on the pressure side 1011 and the guide vane 210, this application limits the angle difference between the inlet angle of the pressure side 1011 and the inlet angle of the guide vane 210.

[0131] Furthermore, the included angles b and e satisfy: be≥0°, be≤10°, to achieve a smooth transition of airflow on the pressure side 1011 and the guide vane 210, to minimize the sudden resistance of airflow, to ensure that the airflow can smoothly adhere to the surface of the guide vane 210, and to effectively prevent the airflow from separating at the root of the guide vane 210 and being drawn into the return air area, thereby avoiding return air short circuit and reducing operating noise.

[0132] If be < 0°, the difference between the inlet angle of guide vane 210 and the inlet angle of pressure side 1011 is small. The air inlet end of guide vane 210 will block the airflow in the channel in the opposite direction. The airflow is obstructed and the local pressure is unbalanced. It is easy to form a vortex at the root of guide vane 210, which will cause local return air.

[0133] If be > 10°, the difference between the inlet angle of guide vane 210 and the inlet angle of pressure side 1011 is large. When the airflow enters the guide vane 210 from the channel, the flow direction changes drastically, which easily leads to airflow wall separation. A large amount of airflow leaves the guide trajectory and is drawn into the return air area, which not only aggravates the return air short-circuit problem, but also increases wind resistance and operating noise, and reduces the overall heat exchange performance of the unit.

[0134] When be=0° or be=10°, the airflow smoothly transitions between the pressure side 1011 and the guide vane 210, allowing the airflow to smoothly adhere to the surface of the guide vane 210 and flow, effectively preventing the airflow from separating at the root of the guide vane 210 and being drawn into the return air area, thereby avoiding return air short circuit and reducing operating noise.

[0135] In some embodiments, when the air guide plate 200 is at its maximum operating angle, the outlet angle α of the guide vane 210 is 22°; the inlet angle b of the guide vane 210 is 11°; the outlet angle c of the pressure side 1011 of the air outlet channel is 56°; the inlet angle e of the pressure side 1011 of the air outlet channel is 6°; the outlet angle d of the suction side 1012 of the air outlet channel is 44°; and the inlet angle f of the suction side 1012 of the air outlet channel is 10°.

[0136] Combined with appendix Figure 12 Appendix Figure 13 A comparison of simulation results shows that, under the simulation conditions of rated operating conditions and uniform supply air volume, the attached... Figure 12 The single-layer air guide plate in the middle concentrates and gathers the airflow, resulting in a longer longitudinal range of the airflow beam, higher airflow velocity in local areas, and concentrated downward airflow; (Attached) Figure 13 The multi-layered air guide plate in the middle relies on the layered airflow structure to disperse the concentrated airflow, and the outlet airflow spreads out in the horizontal direction, so that the overall airflow speed is uniformly reduced and the air supply coverage area is significantly widened.

[0137] The results were visually verified by two sets of simulated cloud maps and streamline distribution: single-layer air guide plate relies on a single flow channel to constrain airflow, and the airflow gathers to form high-speed concentrated air delivery; multi-layer air guide plate breaks the airflow gathering effect through multi-stage diversion and guidance, and the airflow is split and diffused throughout the entire area, and the peak wind speed at the air outlet decreases.

[0138] In this application, the concentrated airflow is divided into multiple parallel thin laminar flows by the multi-layer air guide plate 200, which increases the mixing area between the jet boundary and the surrounding air. While expanding the air supply range, the wind speed is rapidly reduced, avoiding cold or hot air blowing directly on the human body, realizing windless diffusion air supply and improving the user's physical comfort.

[0139] Meanwhile, by optimizing the air inlet and outlet angles of the air guide plate 200 and the air outlet channel 101, as well as the geometric parameters of the guide vane 210, while achieving wide-area comfortable air supply, the increased wind resistance and short-circuit problem caused by the multi-layer air guide plate 200 are effectively overcome, ensuring the balance between the air conditioner's cooling and heating efficiency and air supply performance.

[0140] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0141] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A panel assembly, characterized in that, include: A face frame, wherein an air outlet channel is provided on the face frame; An air guide plate is installed on the face frame and located at the air outlet of the air outlet channel; the air guide plate is configured to switch between a first state and a second state, wherein in the first state, the air guide plate blocks the air outlet. In the second state, the air guide plate opens the air outlet; The air guide plate includes: Multiple guide vanes are arranged along the width direction of the air guide plate, with gaps between adjacent guide vanes to allow airflow to pass through; in the second state, the air guide plate has the guide vanes tilted, with the air inlet end of the guide vane facing the pressure side of the air outlet channel and the air outlet end of the guide vane facing the suction side of the air outlet channel. Define a first plane, which is perpendicular to the length direction of the air guide plate; Define a second plane, which is a vertical plane and perpendicular to the first plane; In the first state, the side of the guide vane facing the air outlet side of the face frame is defined as the front side of the guide vane, and the side of the guide vane facing the air inlet side of the face frame is defined as the back side of the guide vane. The plane that is tangent to the front surface of the guide vane at the air outlet is defined as the third plane; The plane that is tangent to the front surface of the guide vane at the air inlet is defined as the fourth plane; When the air guide plate is in the second state, the angle α between the third plane and the second plane satisfies: a≥10°, a≤30°; the angle b between the fourth plane and the second plane satisfies: b≥0°, b≤20°.

2. The panel assembly according to claim 1, characterized in that, The first direction is from the side of the air guide plate facing the air inlet side of the face frame to the side of the air guide plate facing the air outlet side of the face frame; The included angle b is the inlet angle of the guide vane; each guide vane has its own corresponding inlet angle. In the second state, the inlet angle of the plurality of guide vanes gradually increases along the first direction.

3. The panel assembly according to claim 2, characterized in that, The distance from the end of the guide vane facing the air inlet side of the face frame to the end of the guide vane facing the air outlet side of the face frame is the width of the guide vane; in the second state, the width of the multiple guide vanes gradually increases along the first direction.

4. The panel assembly according to claim 2, characterized in that, The width h of the guide vane satisfies: h≥8mm, h≤20mm; And / or, in the first direction, the distance from the back surface of the guide vane to the front surface of the adjacent guide vane is the interval between the adjacent guide vanes, and the interval g between the adjacent guide vanes satisfies: g≥1.5mm, g≤4mm.

5. The panel assembly according to claim 1, characterized in that, The plane that is tangent to the pressure side of the air outlet at the air outlet is defined as the fifth plane; The plane that is tangent to the suction side of the air outlet is defined as the sixth plane; The angle c between the fifth plane and the second plane satisfies: c ≥ 30°, c ≤ 60°; The angle d between the sixth plane and the second plane satisfies: d ≥ 30°, d ≤ 50°.

6. The panel assembly according to claim 5, characterized in that, The included angle d and the included angle a satisfy: da≥0°, da≤30°.

7. The panel assembly according to claim 1, characterized in that, The plane that is tangent to the pressure side of the air outlet duct at the air inlet is defined as the seventh plane; The plane that is tangent to the suction side of the air outlet at the air inlet is defined as the eighth plane; The angle e between the seventh plane and the second plane satisfies: e≥0°, e≤20°; The angle f between the eighth plane and the second plane satisfies: f≥0°, f≤20°.

8. The panel assembly according to claim 7, characterized in that, The included angle b and the included angle e satisfy: be≥0°, be≤10°.

9. The panel assembly according to claim 1, characterized in that, The air guide plate also includes connecting ribs, which are arranged along the width direction of the air guide plate and are simultaneously connected to multiple guide vanes; the connecting ribs are connected to the back of the guide vanes.

10. A ceiling machine, characterized in that, Includes the panel assembly as described in any one of claims 1-9.

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