Wall-mounted air conditioner indoor unit

Abstract

The utility model discloses a wall -hanging air conditioner indoor unit. Wall -hanging air conditioner indoor unit includes: the casing, and the casing has the air inlet and the air outlet, the air deflector is located at the air outlet, the air deflector vane is rotated and is established on the air deflector, and with the air deflector each other vertical, the air deflector support structure, one end of air deflector support structure is connected on the air deflector, and the other end of air deflector support structure is connected on the casing, the air deflector support structure includes the support plate, and the support plate with air deflector vane is side by side arrangement in the length direction of casing, and the thickness of support plate is along the length direction of casing and sets up, wherein, the shape of support plate is same or close to the shape of air deflector vane, and is provided with a plurality of first micropore that penetrates the thickness direction on the support plate. Thus, can effectively improve the discomfort of the hard blowing of cold wind at the air outlet, makes the air flow soft and the coverage range is wide, greatly reduces the condensation generation probability simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of wall-mounted air conditioning technology, and in particular to a wall-mounted air conditioning indoor unit. Background Technology

[0002] As people continuously pursue a higher quality of life, the hot and humid kitchen cooking environment has become one of the spaces that people urgently hope to improve. Professional kitchen air conditioning solutions have also become a key research area for various brands and manufacturers. Examples include Midea's ceiling-mounted split-type air conditioners and ceiling-mounted embedded air conditioners without outdoor units, and Panasonic's Cloud Tide ceiling-mounted integrated air conditioner.

[0003] However, due to the high temperature and humidity environment of the kitchen, condensation easily forms at the air conditioner vents where hot and cold air meet. Excessive condensation can drip onto the kitchen floor, stovetop, and even the user's head. Furthermore, the cold air blown from the air conditioner vents is fast and harsh, easily blowing directly onto the user's head or upper body. Therefore, improving the cold air delivery experience of kitchen air conditioners is a problem that those skilled in the art must consider and solve during product design iterations. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a wall-mounted air conditioner indoor unit, in which the support plate is designed as a blade-like shape with through-holes and arranged side by side with the air guide blades. This can effectively improve the discomfort of cold air blowing hard at the air outlet, while greatly reducing the probability of condensation.

[0005] A wall-mounted air conditioner indoor unit according to an embodiment of the present invention includes: a housing having an air inlet and an air outlet; a heat exchanger disposed within the housing, located between the air inlet and the air outlet, for heat exchange with air entering from the air inlet; an air guide plate disposed at the air outlet, rotatably connected to the housing to open and close the air outlet; and air guide blades rotatably disposed on the air guide plate and in relation to the air guide plate. The components are perpendicular to each other; the air guide plate support structure is provided on the housing, and the air guide plate is rotatably connected to the air guide plate support structure; the air guide plate support structure includes a support plate, the support plate and the air guide blade are arranged side by side in the length direction of the housing, and the thickness of the support plate is set along the length direction of the housing; wherein, the shape of the support plate is the same as or close to the shape of the air guide blade, and the support plate is provided with a plurality of first micro-holes penetrating the thickness direction of the plate.

[0006] Therefore, by designing the support plate as a blade-like shape with through-holes and setting it side by side with the air guide blades, this application can effectively improve the discomfort of cold air blowing hard at the air outlet, and at the same time greatly reduce the probability of condensation.

[0007] According to some embodiments of the present invention, the width of the support plate gradually decreases from the middle to both ends, or the width of the support plate gradually decreases from the middle to one end to form a blade shape.

[0008] According to some embodiments of the present invention, a plurality of the first microholes are arranged at equal intervals along the width and length directions of the support plate and are staggered along their own width and length directions.

[0009] According to some embodiments of the present invention, the air guide plate support structure further includes a support column, which is integrally formed at the lower end of the support plate, and the support column is bent inward to form an arc-shaped structure.

[0010] According to some embodiments of the present invention, a support hole is formed between the support column and the support plate, and a support rib structure that cooperates with the support hole is provided on the air guide plate.

[0011] According to some embodiments of the present invention, the guide vane is constructed as a first arc edge along one side of its own length, and the guide vane is constructed as a second arc edge along the other side of its own length, with the first arc edge located above the second arc edge. The first arc edge is inclined upward from the outer end away from the housing and is streamlined, while the second arc edge is inclined upward from the outer end away from the housing and is stepped, and the stepped shape is composed of several arc segments.

[0012] According to some embodiments of the present invention, the air guide blade is provided with a plurality of second micro-holes penetrating its thickness direction.

[0013] According to some embodiments of the present invention, a plurality of second micropores are arranged at equal intervals along the width and length directions of the air guide blade and are staggered along their own width and length directions.

[0014] According to some embodiments of the present invention, the angle between the axis of the first micropore and the thickness direction of the housing is an acute angle.

[0015] According to some embodiments of the present invention, the hole axis of a portion of the first micropores is inclined from one end adjacent to the housing to the left side of the housing, and the hole axis of another portion of the first micropores is inclined from one end adjacent to the housing to the right side of the housing; wherein, a portion of the first micropores and another portion of the first micropores are randomly distributed on the support plate.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the indoor unit of the wall-mounted air conditioner with the air outlet closed according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the indoor unit of the wall-mounted air conditioner with the air outlet open according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the air guide plate support structure and the air guide blades arranged side by side according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the air guide plate support structure on the casing according to an embodiment of the present utility model; Figure 5 yes Figure 4 Enlarged view of point A in the middle; Figure 6 yes Figure 5 Enlarged view of point B in the middle; Figure 7 This is a schematic diagram of the air guide plate support structure according to an embodiment of the present utility model from a first perspective. Figure 8 This is a schematic diagram of the air guide plate support structure according to an embodiment of the present utility model from a second perspective. Figure 9 This is a structural schematic diagram of the air guide vane according to an embodiment of the present utility model from a first-view perspective; Figure 10 This is a schematic diagram of the air guide vane from a second perspective according to an embodiment of the present utility model; Figure 11 This is a schematic diagram of the structure of the air guide blade according to an embodiment of the present utility model.

[0018] Figure label: 1. Housing; 11. Air inlet; 12. Air outlet; 2. Air guide plate; 21. Support rib structure; 3. Air guide blade; 31. First arc edge; 32. Second arc edge; 33. Arc segment; 34. Second micro-hole; 4. Air guide plate support structure; 41. Support plate; 411. First micro-hole; 42. Support column; 43. Support hole. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0020] The following is for reference. Figures 1-11 This invention describes a wall-mounted air conditioner indoor unit according to an embodiment of the present invention. The wall-mounted air conditioner includes a wall-mounted indoor unit, which is installed indoors and used for heat exchange with the indoor environment.

[0021] like Figures 1-11 As shown, the wall-mounted air conditioner indoor unit includes: a casing 1, a heat exchanger, an air guide plate 2, air guide blades 3, and an air guide plate support structure 4. The casing 1 is installed indoors, forming the overall appearance of the wall-mounted air conditioner indoor unit.

[0022] refer to Figure 1 and Figure 2 As shown, the housing 1 is generally rectangular in shape. The housing 1 has a top end and a bottom end, which are opposite ends in the height direction (vertical direction) of the housing 1. The left side and right side of the housing 1 are opposite sides in the length direction (horizontal direction) of the housing 1, and the front side and rear side of the housing 1 are opposite sides in the thickness direction (front-back direction) of the housing 1.

[0023] The housing 1 is located at the top of the room or in the upper space of the room. The front of the housing 1 faces the user and the rear of the housing 1 faces the wall, making it suitable for connection with the wall.

[0024] It should be noted that the directions described in the text are based on the direction the user faces when facing the indoor unit of the air conditioner. Specifically, the side of the indoor unit facing the user when in use is defined as the front side, and the opposite side is defined as the rear side. The left and right sides are distinguished by the direction the user faces when facing the indoor unit.

[0025] refer to Figure 1 As shown, the housing 1 has an air inlet 11 and an air outlet 12, and a heat exchange air duct is formed inside the housing 1. The heat exchange air duct is used to house and fix various components in the indoor unit of the air conditioner, which can prevent external objects from colliding with the various components inside the housing 1, thereby improving the reliability of the indoor unit of the air conditioner during transportation or installation.

[0026] The housing 1 may include an outer cover and a front panel. The outer cover has an air inlet 11 and an air outlet 12. The outer cover is generally in the shape of a cuboid frame, with a frame opening on the front side of the outer cover, and the front panel is located on the front side of the outer cover.

[0027] The outer casing has an air inlet 11. The air inlet 11 is connected to the heat exchange duct and serves as an inlet for external air to flow into the casing 1, allowing external air to enter the heat exchange duct through the air inlet 11.

[0028] The outer casing has an air outlet 12. The air outlet 12 is connected to the heat exchange air duct and serves as the outlet for the heat exchange airflow inside the casing 1, allowing the airflow inside the heat exchange air duct to flow out through the air outlet 12.

[0029] The air inlet 11 can be located at the top of the outer casing. The air outlet 12 can be located at the bottom of the outer casing and near the front side of the outer casing, that is, the air outlet 12 is located at the bottom front side of the outer casing. In this embodiment, when the wall-mounted air conditioner indoor unit is working, the wall-mounted air conditioner indoor unit takes in air from the top and exits air to the front, which is convenient for installation.

[0030] The air outlet 12 can be elongated and can extend along the length of the casing 1, which improves the aesthetics of the wall-mounted air conditioner indoor unit.

[0031] In some embodiments of this application, the indoor unit of the wall-mounted air conditioner may include a heat exchanger. The heat exchanger is disposed inside the outer casing and is used for heat exchange with the airflow inside the casing 1.

[0032] The heat exchanger is located between the air inlet 11 and the air outlet 12 to exchange heat with the air entering from the air inlet 11, and then exhaust it to the room from the air outlet 12.

[0033] When the indoor unit of the wall-mounted air conditioner is running, the external airflow enters the casing 1 through the air inlet 11. The indoor air in the heat exchange duct flows through the heat exchanger for heat exchange. The heat-exchanged airflow is discharged to the room through the air outlet 12, thereby enabling the air conditioner to cool and heat, and play a role in regulating the indoor temperature to achieve the user's comfortable temperature.

[0034] In some embodiments of this application, the indoor unit of a wall-mounted air conditioner may include an air guide plate 2. The air guide plate 2 is provided at an air outlet 12 and is rotatably connected to the casing 1 to open or close the air outlet 12. When the air outlet 12 is open, the air guide plate 2 is used to guide the heat exchange airflow; when the air outlet 12 is closed, the air guide plate 2 prevents dust, insects, and other impurities from entering the interior of the casing 1.

[0035] In some embodiments of this application, the indoor unit of a wall-mounted air conditioner may include air guide vanes 3. The air guide vanes 3 are rotatably mounted on the air guide plate 2 and are perpendicular to the air guide plate 2.

[0036] refer to Figure 2 As shown, after the air outlet 12 is opened, the air guide plate 2 determines the "high and low direction" of the airflow by swinging up and down. For example, it swings upward when blowing cold air in summer and downward when blowing warm air in winter. The air guide blade 3 is responsible for "diffusing the airflow". By rotating left and right, it further "disperses and divides" the airflow, which can guide the airflow to the corner of the living room, the sofa area, or cover the entire room by reciprocating the airflow, avoiding direct blowing to one area.

[0037] The guide vane 3 rotates around its vertical axis, which is perpendicular to the movement of the guide plate 2. The two will not interfere with each other during operation (for example, when the guide plate 2 swings up and down, the vane will not get stuck or interfere due to the same direction of movement).

[0038] In some embodiments of this application, the wall-mounted air conditioner indoor unit may include an air guide plate support structure 4. The air guide plate support structure 4 is disposed on the housing 1, and the air guide plate 2 is rotatably connected to the air guide plate support structure 4.

[0039] refer to Figure 2 and Figure 3 As shown, the air guide plate 2 is mostly a long strip of plastic, with limited rigidity. The air guide plate support structure 4 forms a "force-bearing support arm" through the connection point between the fixed point at the end of the housing 1 and the end of the air guide plate 2. This can disperse the torque when the air guide plate 2 moves, and prevent the air guide plate 2 from bending or shifting due to excessive local force, which would result in uneven gaps between it and the housing 1 when closed. The air guide plate support structure 4 can ensure that the air guide plate 2 always moves along the preset trajectory and ensure the fit between the air guide plate 2 and the housing 1 when closed.

[0040] In addition, the air guide plate support structure 4, through rigid connection, limits the movement amplitude of the air guide plate 2 within a preset range, ensuring air control accuracy. At the same time, it absorbs some vibration energy, making the air guide plate 2 swing more smoothly and reducing operating noise.

[0041] In some embodiments of this application, the air guide plate support structure 4 includes a support plate 41, which is arranged side by side with the air guide blades 3 along the length of the housing 1. (See reference) Figures 3-8 As shown, the support plate 41 and the guide vane 3 are aligned on the same plane in the front-to-back and height directions. On the one hand, the trajectory of the guide vane 3 when rotating left and right completely avoids the support plate 41, ensuring smooth airflow. On the other hand, the support plate 41 and the guide vane 3 do not overlap in the airflow path (front-to-back direction), allowing the airflow to be blown out without interruption along the entire length of the casing 1, which is especially suitable for application scenarios requiring wide and uniform horizontal airflow.

[0042] The thickness of the support plate 41 is set along the length of the casing 1. Thus, the stress requirement of the air guide plate 2 in the length direction (lateral direction) is most prominent. When the thickness direction of the support plate 41 is consistent with the length direction of the casing 1, the bending section of the support plate 41 will extend along the length direction, which can directly resist the self-weight sag of the air guide plate 2 in the length direction and the airflow impact torque, thereby improving the stability and support of the air guide plate 2.

[0043] In some embodiments of this application, the shape of the support plate 41 is the same as or close to the shape of the air guide blade 3.

[0044] Thus, the shape of the guide vane 3 is designed to guide the airflow direction. For example, an arc-shaped vane can change the airflow from vertical to angled. If the shape of the support plate 41 is inconsistent with that of the guide vane 3, it will create an abrupt obstruction or deflection in the airflow path, causing the airflow to gather and form a strong, direct wind. On the other hand, a support plate 41 with the same or similar shape can work in conjunction with the vane to allow the airflow to spread continuously along a uniform arc or angle (such as the arc-shaped support plate 41 and the arc-shaped vane jointly guiding the airflow to spread slowly downwards at an angle), avoiding the airflow from concentrating in one direction and weakening the intensity of the direct wind along the path.

[0045] Furthermore, if the shape of the support plate 41 differs significantly from that of the guide vane 3, a dead airflow angle will be formed between them. Low-temperature airflow tends to stagnate in the dead airflow angle, causing the local temperature of the support plate 41 to be much lower than the outside air temperature, resulting in a significant temperature difference (the greater the temperature difference, the higher the probability of condensation). On the other hand, if the shapes are the same or similar, the support plate 41 and the vane can form a continuous and smooth airflow channel. The low-temperature airflow flows along a uniform arc without any stagnation dead airflow angles. The surface temperature of the support plate 41 can be uniformly synchronized with the airflow temperature, avoiding excessive local cooling, thereby reducing the temperature difference with the outside air and reducing condensation conditions from the source.

[0046] Furthermore, designing the support plate 41 to have the same or similar shape as the air guide blade 3 can significantly reduce the visual difference brought to the user by the air guide plate support structure 4, providing a visual effect of consistent appearance of the air outlet 12 and the air guide plate 2.

[0047] In some embodiments of this application, a plurality of first microholes 411 penetrating the thickness direction of the support plate 41 are provided on the support plate 41.

[0048] refer to Figure 5 and Figure 6 As shown, the first micro-holes 411 on the support plate 41 can form micro-airflow channels. The first micro-holes 411 can perform "secondary diversion" of the airflow passing through the support plate 41. Most of the airflow is blown out along the main channel formed by the support plate 41 and the guide vane 3, while a small portion of the airflow will be dispersed and overflow through the micro-holes. On the one hand, the airflow overflowing from these first micro-holes 411 will create a slight disturbance with the main airflow, breaking the concentration of the main airflow and changing the overall airflow from a columnar strong wind to a surface soft wind, making the cold air blown out less direct and harsh; on the other hand, the cold air can have a richer airflow path when passing through the support plate 41, which can significantly reduce the probability of condensation in the area of ​​the support plate 41. In addition, the dispersing effect of the first micro-holes 411 can also make the airflow coverage wider, further reducing the impact of cold air in local areas and further solving the problem of "uncomfortable direct cold air blowing".

[0049] Furthermore, the low-temperature dry airflow inside the casing 1 can slowly permeate to the outside through the first micropore 411, forming a dry airflow film on the surface of the support plate 41. This prevents the high-humidity air from directly contacting the low-temperature surface of the support plate 41, reducing moisture adhesion. On the other hand, a small amount of ambient temperature air will also enter the interior through the first micropore 411, slightly increasing the surface temperature of the support plate 41 (to prevent the surface temperature from becoming too low), further reducing the temperature difference between the component and the ambient temperature. This dual effect significantly reduces the probability of condensation. In contrast, the non-porous design results in a completely sealed low-temperature interface on the surface of the support plate 41, where high-humidity air easily condenses into water droplets. The microporous design, on the other hand, adds a humidity buffer layer to the support plate 41, suppressing condensation by blocking moisture and balancing the temperature.

[0050] Therefore, this application effectively reduces the risk of condensation by designing the support plate 41 as a blade-like shape with through-holes and setting it side by side with the air guide blade 3 without adding additional structural components. At the same time, it can also reduce the wind resistance of the blown cold air, bringing a certain softening effect, making the wind blowing on people less "harsh". This solves the problems of easy condensation and direct cold air blowing caused by the junction of hot and cold air in the kitchen air conditioner outlet 12 in the high temperature and high humidity environment of the kitchen, and avoids the unpleasant experience caused by excessive condensation dripping onto the user's kitchen floor, stove surface and even the user's head.

[0051] In some embodiments of this application, the width of the support plate 41 gradually decreases from the middle to both ends or the width of the support plate 41 gradually decreases from the middle to one end to form a leaf shape.

[0052] refer to Figures 5-8 As shown, the blade-like gradient shape allows the airflow to transition smoothly along the surface of the support plate 41, reducing airflow disturbance caused by abrupt interface changes and effectively reducing resistance and noise at the source. If the support plate 41 is a rectangle of equal width (non-gradient), its edges (especially the two ends) will form right angles or abrupt interfaces with the airflow. When the airflow passes through, turbulence and eddies are easily generated at the edges, resulting in the consumption of airflow energy, reduced airflow speed, and shortened range; at the same time, eddies will generate high-frequency noise, causing an uncomfortable experience.

[0053] Since the air guide plate 2 needs to rotate around the air guide plate support structure 4 to adjust the air outlet direction (such as up and down swinging), the "wide in the middle and narrow at both ends" shape of the blade-shaped support plate 41 can be precisely matched with the airflow coverage range when the air guide plate 2 rotates. That is, the middle (support core area) corresponds to the "main air outlet area" of the air guide plate 2, and the wider width can ensure the stability of the support; the two ends (air guide edge area) correspond to the "side air outlet area", and the narrower width can reduce the obstruction of the edge airflow, ensuring that the air outlet is uniform and without dead corners under different swing angles.

[0054] Therefore, designing the support plate 41 as a blade shape can not only reduce the visual difference that the air guide plate support structure 4 brings to the user at the air outlet 12, but also effectively reduce airflow resistance and airflow noise, and further improve airflow efficiency.

[0055] In some embodiments of this application, a plurality of first microholes 411 are arranged at equal intervals along the width and length directions of the support plate 41 and are staggered along their own width and length directions.

[0056] The staggered arrangement of several first micropores 411 on the support plate 41 allows the micropores in adjacent rows / columns to be "staggered" so that the solid area of ​​the support plate 41 is divided into dispersed small units rather than continuous strips. Airflow can pass through the support plate 41 through more intersecting channels, greatly reducing the proportion of airflow that must detour, thereby improving the overall permeability and reducing the energy loss when airflow passes through.

[0057] Equal spacing further enhances the effect of staggered arrangement: equal spacing along the width direction ensures consistent air permeability at different front and rear positions of the support plate 41, avoiding excessive local air permeability that could lead to "airflow deviation"; equal spacing along the length direction ensures balanced airflow in the upper and lower areas, avoiding "uneven local wind resistance" due to differences in micropore density.

[0058] When the indoor unit of the wall-mounted air conditioner is running, the support plate 41 may be at a lower temperature due to its proximity to the evaporator, and water vapor in the air may easily condense on its surface and drip. The presence of the first micropore 411 allows some airflow to pass through the surface of the support plate 41, accelerating surface airflow and reducing the residence time of water vapor on the surface, thereby reducing the probability of condensation.

[0059] Therefore, the staggered arrangement of several first micropores 411 at equal intervals can make the airflow through the support plate 41 more stable, further improve the airflow permeability, and at the same time greatly reduce the probability of condensation.

[0060] In some embodiments of this application, the air guide plate support structure 4 further includes a support column 42, which is integrally formed at the lower end of the support plate 41, and the support column 42 is bent inward to form an arc-shaped structure.

[0061] refer to Figures 3-8 As shown, the inward bending of the support column 42 refers to the inner area that rotates towards the inside of the housing 1 or the air guide plate 2. When the air guide plate 2 is adjusted downward, its rotation trajectory is "swinging downward around the rotation axis of the air guide plate support structure 4", and its end will move closer to the inside of the housing 1. The inward bending of the support column 42 can limit the downward rotation of the air guide plate 2 to its extreme position.

[0062] The support column 42 and the support plate 41 are integrally formed, which allows the support column 42 and the support plate 41 to form a seamless overall structure. When under stress, the force can be evenly transmitted along the connection surface of the support column 42 and the support plate 41, avoiding local stress concentration, greatly improving the impact resistance and fracture resistance of the support column 42, and ensuring the long-term reliability of the limiting function.

[0063] Compared to "right-angled" and "straight rod" support columns 42, the bow-shaped structure has a certain structural strength and a certain elastic deformation capacity, which can absorb some impact energy through slight deformation and extend its service life.

[0064] In some embodiments of this application, a support hole 43 is formed between the support column 42 and the support plate 41, and a support rib structure 21 that cooperates with the support hole 43 is provided on the air guide plate 2.

[0065] refer to Figure 5 and Figure 6 As shown, after the support rib is inserted into the support hole 43, the inner wall of the support hole 43 will form a circumferential wrapping support for the support beam, and transfer the force on the air guide plate 2 to the support column 42 and the support plate 41 (the three are integrally formed and have strong load-bearing capacity) through the support beam, forming a complete force chain of "air guide plate 2 → support beam → support hole 43 → support structure → casing 1", avoiding stress concentration at a certain point, greatly improving the connection rigidity, and preventing the air guide plate 2 from shaking during operation.

[0066] The support plate 41 extends along the vertical direction (height direction) of the housing 1, and the support column 42 bends inward from the lower end of the support plate 41 to form an arc shape. The "angle area" formed by the intersection of the two has high rigidity. The support hole 43 is opened here, which can rely on the surrounding solid structure (the longitudinal strength of the support plate 41 + the arc bearing capacity of the support column 42) to avoid the support hole 43 from "hole diameter deformation" (such as a circular hole being pressed into an ellipse) due to stress (such as the radial pressure of the support beam), thus ensuring long-term fitting accuracy.

[0067] In some embodiments of this application, the guide vane 3 is constructed with a first arc edge 31 along one side of its length and a second arc edge 32 along the other side of its length, with the first arc edge 31 located above the second arc edge 32. It can be understood that the upper edge of the guide vane 3 along the vertical direction of the housing 1 is the first arc edge 31 and the lower edge is the second arc edge 32.

[0068] refer to Figures 9-11 As shown, the first arc edge 31 is inclined upward from the outer end away from the housing 1 and is streamlined, and the second arc edge 32 is inclined upward from the outer end away from the housing 1 and is stepped, and the stepped shape is composed of several arc segments 33.

[0069] First, the first arc edge 31, as the upper edge, is mainly responsible for guiding the "main airflow" (the core airflow with high wind speed and large flow rate) on the upper side of the guide vane 3. Its design serves the "efficient air guidance" and "low resistance characteristics" when swinging left and right.

[0070] When the guide vane 3 swings left and right, it essentially performs a "lateral cutting motion" in the airflow. If the upper edge is a right angle or a broken line, it will continuously "impact" the airflow during the swing, generating periodic "impact resistance" (similar to the resistance when a fan is blowing). This not only increases the load on the drive motor but also causes blade vibration and noise. However, the curvature design of the streamlined arc edge is highly compatible with the combined path of "blade swing trajectory + airflow direction". Regardless of whether the guide vane 3 rotates to the left or right, the airflow can "smoothly glide" along the arc edge surface, reducing the "additional resistance" caused by the swing, making the guide vane 3 rotate more smoothly (reducing motor power consumption), and avoiding vibration and noise.

[0071] The core of the left-right swing design is to expand the lateral air supply coverage, but simply swinging left and right will cause the airflow to concentrate at the same horizontal height. The "tilted downward" design of the first arc edge 31 can guide part of the main airflow to diffuse downward while swinging left and right, forming a three-dimensional air field of "lateral sweeping + vertical downward coverage" with the downward airflow guided by the lower edge, avoiding the air supply being limited to a single height and improving the airflow circulation efficiency in the space.

[0072] Secondly, the second arc edge 32, as the lower edge, mainly deals with the "edge airflow" (airflow with low wind speed and easily disturbed by blade swing) on ​​the lower side of the guide vane 3. Its stepped design is a "segmented management" of dynamic edge airflow.

[0073] When the air guide vane 3 swings left and right, the lower edge is prone to developing trailing vortices due to airflow around it (especially at the outer end where the speed is high, making the vortices more pronounced; vortices are concentrated at the edge of a single arc, easily generating low-frequency noise). The stepped design, however, can "divide large vortices into multiple smaller vortices," which have lower energy and attenuate faster, significantly reducing vortex noise. Simultaneously, compared to a single arc, the stepped structure can improve the "bending strength" of the lower edge with the same amount of material. When swinging left and right, the lower edge needs to withstand the lateral impact of the airflow; the segmented structure of the stepped design can disperse stress, preventing the edge from bending and deforming due to long-term stress (especially for plastic blades, this can extend their service life).

[0074] In addition, a stepped design can be specifically implemented using several arc-shaped segments 33: the outer arc-shaped segment 33 (near the outer end of the guide vane 3) has a smaller curvature, which is suitable for the "oblique airflow" during large-angle swings (guiding it to diffuse downwards and outwards); the inner arc-shaped segment 33 (near the casing 1) has a larger curvature, which is suitable for the "near-distance airflow" during small-angle swings (guiding it to converge downwards and outwards). By segmenting the guidance, the edge airflow at each swing angle can "flow in an orderly manner," avoiding turbulence and noise.

[0075] By employing the common design principle that both the streamlined first arc edge 31 and the stepped second arc edge 32 "incline outward and downward from the inner end," the guide vane 3 forms a "butterfly wing shape." As the airflow passes from the inner end to the outer end of the guide vane 3, it gradually diffuses and accelerates outward. This design can buffer the "airflow fluctuations caused by the left and right swing of the blades," avoiding the problem of "high wind speed when swinging to the left and low wind speed when swinging to the right," ensuring uniform airflow and continuity throughout the entire swing range.

[0076] In some embodiments of this application, the air guide vane 3 is provided with a plurality of second micro-holes 34 extending through its thickness direction. Specifically, when the cooling air blows onto the air guide vane 3, part of the airflow passes through the second micro-holes 34 of the air guide vane 3, while most of the airflow is still guided in the direction deflected by the vane. This does not affect the left and right air guiding performance, and can significantly reduce the probability of condensation at the air outlet 12. In addition, due to the resistance of the second micro-holes 34 themselves, the cold air velocity during left and right air guiding will be reduced to a certain extent, which can bring users a gentler airflow experience.

[0077] In some embodiments of this application, a plurality of second microholes 34 are arranged at equal intervals along the width and length directions of the guide vane 3 and are staggered along their own width and length directions.

[0078] Several second micropores 34 are arranged at equal intervals. This ensures consistent cold air penetration across all areas of the guide vane 3, guaranteeing a uniform surface temperature. Whether near the inner end of the casing 1 or far from the outer end, the temperature will not differ significantly, preventing concentrated condensation caused by localized overcooling. If the micropore spacing is uneven (some areas dense, some sparse), the sparsely spaced areas are prone to forming "localized low-temperature zones" (becoming high-concentration condensation areas) due to the longer contact time between the cold air and the vane.

[0079] On the other hand, it allows for uniform airflow distribution across every part of the blade. The upper micro-pores distribute the upper airflow, the lower micro-pores distribute the lower airflow, and the inner and outer micro-pores handle near-distance and far-distance airflow respectively. Regardless of the blade's angle, it achieves full-area airflow separation, preventing localized strong airflow from blowing directly onto the blade.

[0080] Several second micropores 34 are staggered. In this way, on the one hand, the micropores in adjacent rows / columns are staggered, and the solid area of ​​the blade is divided into dispersed small units rather than continuous ribs. Air on both sides of the blade can form "cross convection" through the micropores. Even if a small amount of water vapor is generated in a certain area, it can be quickly carried away by the convective airflow, which greatly improves the surface drying efficiency and enhances the anti-condensation effect.

[0081] On the other hand, the staggered second micro-hole 34 allows micro-airflows to exit the blades from different angles, forming a "three-dimensional airflow field with moderate turbulence." This airflow field not only has low wind speed but also dispersed direction, resulting in almost no "impact" when blowing towards the human body, and the wind feel is closer to natural wind (gentle and non-directional). At the same time, the staggered micro-holes can break the "directionality of the main airflow." After the main airflow guided by the un-perforated area mixes with the dispersed micro-airflows exiting the micro-holes, the originally concentrated "columnar wind" will be transformed into a "fan-shaped diffused wind," resulting in a wider air delivery range and further reducing the probability of localized direct blowing.

[0082] In some embodiments of this application, the angle between the hole axis of the first microhole 411 and the thickness direction of the housing 1 is an acute angle. It can be understood that the thickness direction of the housing 1 refers to the front-back direction of the housing 1, and the hole axis of the first microhole 411 (i.e. the path of airflow through the microhole) is not perpendicular to the surface of the support plate 41, but is inclined in a certain direction, forming an angle of less than 90° with the thickness direction of the housing 1.

[0083] The support plate 41, as the main support structure of the air guide plate 2, is located in the airflow channel. The tilt angle of the first micro-hole 411 of the support plate 41 can be matched with the target airflow direction of the air guide blade 3. For example, when the air guide blade 3 swings left / right, the axis of the micro-hole tilts left and right (forming an acute angle with the thickness direction of the casing 1), allowing the airflow passing through the first micro-hole 411 to obtain an initial velocity in the left and right direction, consistent with the airflow direction guided by the air guide blade 3. This "directional guidance" allows the airflow from the micro-hole to "superimpose in the same direction" with the main airflow, enhancing the airflow intensity in a specific direction and improving the adjustment accuracy of the air guide plate 2.

[0084] If the axis of the micro-hole is perpendicular to the surface of the support plate 41, turbulence will be formed when the airflow passes through the first micro-hole 411. Turbulence will not only increase the system's wind resistance, but also interfere with the main airflow, disrupting the stable airflow field formed by the guide plate 2. The acute-angle tilt design allows the airflow to "pass through the micro-hole at an angle" and merge into the main airflow at a gentler angle, like "a tributary of a river flowing into the main stream," avoiding energy loss caused by vertical impact, making the overall airflow smoother, and reducing the system's wind resistance.

[0085] Furthermore, as the airflow flows within the inclined micropores, it has a longer contact time with the inner wall of the micropores, resulting in more heat exchange between the low-temperature airflow and the support plate 41 (which is warmer than the cold air). After passing through the micropores, the airflow temperature rises slightly, while the heat carried away from the support plate 41 decreases, preventing the surface temperature from becoming too low and further reducing the risk of condensation. Simultaneously, the longer path allows the airflow to fully "mix" within the micropores (especially when there is a temperature difference between the two sides of the support plate 41), preventing surface temperature fluctuations caused by localized low-temperature airflow directly exiting.

[0086] In some embodiments of this application, the hole axis of a portion of the first micropores 411 is inclined from one end adjacent to the housing 1 toward the left side of the housing 1, and the hole axis of another portion of the first micropores 411 is inclined from one end adjacent to the housing 1 toward the right side of the housing 1; wherein, a portion of the first micropores 411 and another portion of the first micropores 411 are randomly distributed on the support plate 41.

[0087] Thus, the bidirectional design of the first micro-hole 411, which is "partially tilted to the left and partially tilted to the right", allows the airflow passing through the first micro-hole 411 to be naturally divided into "left-side branch" and "right-side branch", forming a three-dimensional airflow field of "central main airflow (left and right main airflow) + left and right side branches", which enhances the air supply intensity in a specific direction.

[0088] The first micro-hole 411 is "randomly distributed" (such as left-tilted holes and right-tilted holes randomly interspersed on the support plate 41) so that the left and right branches can be evenly interspersed throughout the entire area of ​​the support plate 41, forming a "natural left and right diffusion wind", avoiding local airflow that is too strong or too weak, and ensuring the uniformity of air supply in the horizontal range of the room.

[0089] Even in high humidity environments, when trace amounts of water vapor are generated on the surface of the support plate 41, the randomly distributed bidirectional airflow can still form a "turbulent micro-airflow field" on the surface. The left-hand and right-hand airflows flow alternately on the surface, which can quickly carry away the water vapor and prevent water vapor from accumulating and forming visible condensation. Compared with the "unidirectional micro-airflow" formed by unidirectional inclined micropores, the bidirectional disordered micro-airflow field has a wider coverage and higher drying efficiency.

[0090] Therefore, this application, based on the conventional air guide plate 2 structure, effectively reduces the risk of condensation without adding extra structural components through local innovative design. At the same time, it can also reduce the wind resistance of the blown cold air, bringing a certain softening effect, making the wind blowing on people less "harsh".

[0091] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0093] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wall-mounted air conditioner indoor unit, comprising: A housing having an air inlet and an air outlet; A heat exchanger is disposed inside the housing and located between the air inlet and the air outlet to exchange heat with the air entering from the air inlet. An air guide plate is disposed at the air outlet and is rotatably connected to the housing to open and close the air outlet; The air guide blade is rotatably mounted on the air guide plate and is perpendicular to the air guide plate. An air guide plate support structure is provided on the housing, and the air guide plate is rotatably connected to the air guide plate support structure. Its features are, The air guide plate support structure includes a support plate, the support plate and the air guide blades are arranged side by side in the length direction of the housing, and the thickness of the support plate is set along the length direction of the housing; The support plate has the same shape as or similar to the shape of the air guide blade, and the support plate is provided with a number of first micro-holes penetrating the thickness direction of the plate.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The width of the support plate gradually decreases from the middle to both ends, or the width of the support plate gradually decreases from the middle to one end to form a leaf shape.

3. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, A plurality of the first micropores are arranged at equal intervals along the width and length directions of the support plate and are staggered along their own width and length directions.

4. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The air guide plate support structure also includes a support column, which is integrally formed at the lower end of the support plate and is bent inward to form an arc-shaped structure.

5. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that, A support hole is formed between the support column and the support plate, and a support rib structure that rotates with the support hole is provided on the air guide plate.

6. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The guide vane is constructed with a first arc edge along one side of its own length, and the guide vane is constructed with a second arc edge along the other side of its own length, with the first arc edge located above the second arc edge. The first arc edge is inclined upward from the outer end away from the housing and is streamlined, while the second arc edge is inclined upward from the outer end away from the housing and is stepped, and the stepped shape is composed of several arc segments.

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that, The air guide blade is provided with several second micro-holes that extend through its thickness direction.

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that, A plurality of the second micropores are arranged at equal intervals along the width and length directions of the air guide blade and are staggered along their own width and length directions.

9. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The angle between the axis of the first micropore and the thickness direction of the housing is an acute angle.

10. The wall-mounted air conditioner indoor unit according to claim 9, characterized in that, A portion of the first micropores has its hole axis inclined from one end adjacent to the housing towards the left side of the housing, while another portion of the first micropores has its hole axis inclined from one end adjacent to the housing towards the right side of the housing; wherein, a portion of the first micropores and the other portion of the first micropores are randomly distributed on the support plate.

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