Air conditioner indoor unit

Abstract

An air conditioner indoor unit (10), comprising a housing (180), an air duct, a first air deflector (110), and a plurality of flow guide structures (120). The housing (180) is provided with a first air outlet (160), which has an edge (131) extending in a transverse direction. The air duct is arranged in the housing (180), and comprises an air output face (140) connected to the edge (131). The first air deflector (110) is arranged at the first air outlet (160). The surface of one side of the first air deflector (110) is an air-deflecting face (111) for guiding airflow to flow out between the air output face (140) and the air-deflecting face (111). The plurality of flow guide structures (120) are arranged on the air-deflecting face (111) of the first air deflector (110). During air deflection by the first air deflector (110), the distance between each flow guide structure (120) and the air output face (140) is less than 1 / 2 of the distance between the air-deflecting face (111) and the air output face (140). When airflow is blown out from the first air outlet (160), at least part of the airflow passes through the plurality of flow guide structures (120).

Description

Air conditioner indoor unit

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese invention patent application No. 202410257152.3, filed on March 6, 2024, with the invention name “AIR CONDITIONER INDOOR UNIT”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of air conditioning, and in particular to an indoor unit of an air conditioner. Background Art

[0004] With the popularization of air conditioners and the promotion of health concepts, users have higher and higher requirements for the comfort of air conditioning air supply. The indoor unit of traditional air conditioners has strong air supply, and cold air blows directly on people, resulting in poor user experience and frequent air conditioning disease problems. For wall-mounted units, although the air outlet is at the top, users can still feel a strong sense of wind. At present, some air conditioners are equipped with a guide structure on the side of the air guide plate facing the air outlet to disperse the air flow passing through the surface of the air guide plate, thereby avoiding direct blowing of cold air. However, the guide structure in the related art is small in size, and most of the air flow of the air conditioner passes through the air guide plate. The guide structure is not sent out through the guide structure, so the guide effect is not very obvious. Summary of the Invention

[0005] In view of the above problems, the present application is proposed to provide an air conditioner indoor unit that overcomes the above problems or at least partially solves the above problems, which can solve the problem that the air guide plate has an unclear air flow guiding effect and achieve the effect of avoiding direct blowing of cold air.

[0006] Specifically, the present application provides an air conditioner indoor unit, comprising:

[0007] a housing, wherein a first air outlet is formed on the housing, the first air outlet extends in a transverse direction, and the first air outlet has an edge extending in the transverse direction;

[0008] an air duct, the air duct being arranged in the housing and comprising an air outlet surface connected to the edge;

[0009] a first air guide plate, the first air guide plate being disposed at the first air outlet and extending along the length direction of the first air outlet; a side surface of the first air guide plate being an air guide surface for guiding airflow to flow out from between the air outlet surface and the air guide surface;

[0010] A plurality of guide structures are provided on the wind guide surface of the first wind guide plate and are arranged in sequence along the length direction of the first wind guide plate; and

[0011] When the first air guide plate guides air, the distance between each of the air guide structures and the edge or the air outlet surface is less than 1 / 2 of the distance between the air guide surface and the edge or the air outlet surface.

[0012] Optionally, the first air guide plate is rotatably arranged at the first air outlet, and the lower surface of the first air guide plate is the air guide surface;

[0013] The edge is the lower edge of the first air outlet.

[0014] Optionally, the housing is further provided with a second air outlet, and a front edge of the second air outlet is arranged at a rear side and a lower side of a lower edge of the first air outlet;

[0015] The housing further includes a partition portion disposed between the first air outlet and the second air outlet, the air outlet surface being an inner surface of the partition portion; and a rear edge of the air outlet surface being lower than a lower edge of the first air outlet.

[0016] Optionally, the first air guide plate is rotatably arranged around its rear edge at the upper edge of the first air outlet; or,

[0017] The air duct has an upper air outlet wall, the front edge of the upper air outlet wall is spaced apart from the upper edge of the first air outlet, and the first air guide plate is rotatably arranged around its rear edge at the front edge of the upper air outlet wall.

[0018] Optionally, the front edge of the upper air outlet wall is located below and behind the upper edge of the first air outlet;

[0019] The front edge of the first air guide plate can be rotated to a position overlapping with the upper edge of the first air outlet.

[0020] Optionally, the air conditioner indoor unit further includes a second air guide plate; the second air guide plate is rotatably disposed at the second air outlet to open and close the second air outlet;

[0021] When the second air outlet is closed, the upper surface of the second air guide plate is connected to the air outlet surface.

[0022] Optionally, the second air deflector includes a straight section and an upturned section extending forward and upward from a front end of the straight section;

[0023] When the second air outlet is closed, the upper surface of the upwardly curved section is connected to the air outlet surface.

[0024] Optionally, the air outlet surface is a first arched arc surface;

[0025] The inner surface of the upward-curved section is a concave second arc surface;

[0026] The first arc surface is tangent to the second arc surface.

[0027] Optionally, the plurality of guide structures are configured to form a first guide area, a second guide area and a third guide area on the corresponding sides of the first guide plate, the first guide area being used to accelerate the flow of the corresponding airflow, the second guide area being used to make the corresponding airflow flow toward one lateral side of the first guide plate, and the third guide area being used to make the corresponding airflow flow toward the other lateral side of the first guide plate.

[0028] Optionally, the first air guiding area is between the second air guiding area and the third air guiding area;

[0029] The plurality of guide structures include at least one first guide structure for forming the first air guide area; at least one first guide structure forms one or more guide channels extending along the airflow direction;

[0030] Each of the first guide structures includes a first guide plate and a second guide plate, wherein the first guide plate is arched toward the second guide plate, and the second guide plate is arched toward the first guide plate, and the guide channel is formed between the first guide plate and the second guide plate;

[0031] There are multiple first guide structures, and the multiple first guide blades and the multiple second guide blades are alternately arranged in sequence along the length direction of the first air guide plate;

[0032] In two adjacent first flow guide structures, two ends of the second flow guide plate of one first flow guide structure are connected to two ends of the first flow guide plate of the other first flow guide structure;

[0033] The inlet of the guide channel is larger than the outlet of the guide channel, and the narrowest position of the guide channel is located between the inlet of the guide channel and the outlet of the guide channel.

[0034] In the air conditioner indoor unit of the present application, compared to the relatively small height of the guide ribs in the related art, because the distance between each guide structure and the air outlet surface is less than 1 / 2 of the distance between the guide surface and the air outlet surface, the guide structure in this embodiment is relatively large in height, resulting in a significant air diversion effect of the guide structure. After the airflow blown out of the first air outlet in the air conditioner indoor unit passes through the multiple guide structures, the airflow angle and / or airflow speed of the first air outlet can be significantly changed, so that the airflow angle through the first air outlet is increased or the airflow speed is reduced, thereby preventing the airflow blown out of the first air outlet from directly blowing on the user or the high airflow speed from blowing on the user and causing discomfort.

[0035] Based on the detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Hereinafter, some specific embodiments of the present invention will be described in detail in an illustrative and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0037] FIG1 is a schematic structural diagram of an indoor unit of an air conditioner according to one embodiment of the present invention;

[0038] FIG2 is a schematic structural diagram of a first air guide plate and a flow guide structure according to one embodiment of the present invention;

[0039] FIG3 is a schematic structural diagram of a first air guide plate and a flow guide structure according to one embodiment of the present invention;

[0040] FIG4 is a schematic structural diagram of a second air guide plate according to an embodiment of the present invention;

[0041] FIG5 shows the main direction of airflow passing through the air guide structure according to one embodiment of the present invention. DETAILED DESCRIPTION

[0042] The air conditioner indoor unit according to an embodiment of the present invention is described below with reference to Figures 1 to 5. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0043] Unless otherwise expressly defined or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be broadly interpreted. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0046] The reference to any prior art in the specification is not and should not be taken as an admission or any form of suggestion that the prior art forms part of the common general knowledge in the application area or any other jurisdiction, or that the prior art could reasonably be understood and regarded as relevant by a person skilled in the art.

[0047] FIG1 is a schematic structural diagram of an air conditioner indoor unit according to one embodiment of the present invention. As shown in FIG1 , and with reference to FIG2 through FIG5 , an embodiment of the present invention provides an air conditioner indoor unit 10, comprising a housing 180, an air duct, a first air guide plate 110, and a plurality of air guide structures 120. The housing 180 defines a first air outlet 160, which extends transversely and has an edge 131 extending transversely. The air duct is disposed within the housing and includes an air outlet surface 140 connected to the edge 131. The first air guide plate 110 is disposed at the first air outlet 160 and extends along the length of the first air outlet 160. One side surface of the first air guide plate 110 is a guide surface 111, which guides airflow between the air outlet surface 140 and the guide surface 111. The plurality of air guide structures 120 are disposed on the guide surface 111 of the first air guide plate 110 and are arranged sequentially along the length of the first air guide plate 110. When the first air guide plate 110 guides air, the distance between each air guide structure 120 and the air outlet surface 140 is less than 1 / 2 of the distance between the air guide surface 111 and the air outlet surface 140 .

[0048] When the first air outlet 160 blows out air, at least part of the air flow passes through the multiple guide structures 120. Compared with the relatively small height of the guide ribs in the related art, because the distance between each guide structure 120 and the air outlet surface 140 is less than 1 / 2 of the distance between the guide surface 111 and the air outlet surface 140, the height of the guide structure in this embodiment is relatively large, so that the guide structure 120 has a significant guiding effect. After the air flow blown out of the first air outlet 160 in the indoor unit room of the air conditioner passes through the multiple guide structures 120, the air outlet angle and / or air outlet speed of the first air outlet 160 can be significantly changed, so that the air outlet angle through the first air outlet becomes larger or the air outlet speed decreases, thereby preventing the air flow blown out of the first air outlet 160 from directly blowing on the user or the high air outlet speed from blowing on the user and causing discomfort.

[0049] In some alternative embodiments of the present invention, the distance between each air guide structure 120 and the edge 131 is less than ½ of the distance between the air guide surface 111 and the edge 131 .

[0050] Furthermore, in some embodiments of the present invention, the first air deflector 110 is rotatably disposed at the first air outlet 160, with the lower surface of the first air deflector 110 serving as an air guide surface 111. The edge 131 serves as the lower edge of the first air outlet 160. The first air deflector 110 can be rotated to change the direction of airflow passing through the first air outlet 160. A plurality of guide structures 120 are disposed on the lower surface of the first air deflector to guide the airflow passing through the lower surface of the first air deflector.

[0051] In some embodiments of the present invention, the shell is further provided with a second air outlet, and the front edge of the second air outlet is arranged at the rear side and the lower side of the lower edge of the first air outlet 160. The shell also includes a partition 130 arranged between the first air outlet 160 and the second air outlet, and the air outlet surface 140 is the inner surface of the partition 130. The rear edge 131 of the air outlet surface 140 is lower than the lower edge 131 of the first air outlet 160, that is, along the direction of air flow, the partition is a structure inclined obliquely from back to front to front and upward, and the angle between the partition and the horizontal plane is θ, where θ ≥ 20°, and the optimal selection is θ = 40°. The air outlet surface 140 can guide the airflow in the air duct to rise after passing through the air outlet surface 140 and blow out from the first air outlet 160.

[0052] In some embodiments of the present invention, as shown in FIG1 , the first air outlet 160 is disposed on the front surface of the housing, and the second air outlet is disposed on the front side of the lower surface of the housing.

[0053] In some embodiments of the present invention, the first air guide plate 110 is rotatably disposed around its rear edge 131 at the upper edge of the first air outlet 160 .

[0054] In other embodiments of the present invention, the air duct includes an upper air outlet wall 190, the front edge of which is spaced apart from the upper edge of the first air outlet 160. The first air guide plate 110 is rotatably disposed about its rear edge at the front edge of the upper air outlet wall 190. After the airflow flows out of the upper air outlet wall 190, the first air guide plate 110 rotates to guide the airflow, which then passes through the guide structure, changing its direction and speed.

[0055] In some embodiments of the present invention, the front edge of the upper air outlet wall 190 is located below and behind the upper edge 131 of the first air outlet 160. In some embodiments, the front edge 131 of the first air guide plate 110 can be rotated to a position where it overlaps with the upper edge 131 of the first air outlet 160. In some embodiments, the front edge 131 of the first air guide plate 110 does not extend beyond the first air outlet 160.

[0056] In some embodiments of the present invention, the air conditioner indoor unit 10 further includes a second air guide plate 170, which is rotatably disposed at the second air outlet to open and close the second air outlet. When the second air outlet is closed, the upper surface of the second air guide plate 170 is connected to the air outlet surface 140. The second air guide plate 170 cooperates with the first air guide plate 110 to enable the air outlet of the air conditioner indoor unit 10 to have multiple air outlet modes. When the first air guide plate 110 is in a horizontal state and the second air guide plate 170 closes the second air outlet, all airflow is blown out from the first air outlet 160. Correspondingly, at least a portion of the airflow is guided by the guide structure. The first air guide plate 110 can also be rotated to a position where the guide structure contacts the air outlet surface 140. Preferably, when the first air guide plate 110 is in a horizontal state, the guide structure contacts the air outlet surface 140. At this time, the second air guide plate 170 can also open the second air outlet, so that part of the air flow is blown out from the first air outlet 160 and the guide structure, and the other part of the air flow is blown out from the second air outlet.

[0057] 4 , the second air guide plate 170 includes a straight section 172 and an upturned section 171 extending forward and upward from the front end of the straight section 172. When the second air outlet is closed, the upper surface of the upturned section 171 is connected to the air outlet surface 140.

[0058] The above arrangement ensures that when the second air outlet is closed, the airflow passes through the upper surface of the straight section 172 and the upward section 171 of the second air guide plate 170, and then passes through the air outlet surface 140, and then blows out forward and upward, and then blows out from the lower edge of the first air outlet 160, so that the airflow blown out from the lower edge of the first air outlet 160 rises.

[0059] In some embodiments of the present invention, as shown in FIG4 , the air outlet surface 140 is a raised first arc surface. The inner surface of the upturned section 171 is a recessed second arc surface. The first arc surface is tangent to the second arc surface. This arrangement reduces airflow resistance through the first and second arc surfaces. In other words, the first and second arc surfaces are arcs of two tangent circles, with the centers of the two circles located on either side of the spacer.

[0060] In some embodiments of the present invention, multiple guide structures 120 are configured to form a first guide area, a second guide area, and a third guide area on corresponding sides of the first guide plate 110. The first guide area is used to accelerate the flow of the corresponding airflow, the second guide area is used to make the corresponding airflow flow toward one lateral side of the first guide plate 110, and the third guide area is used to make the corresponding airflow flow toward the other lateral side of the first guide plate 110 away from the first guide area.

[0061] The airflow blown out of the air duct of the air conditioner passes through multiple guide structures 120 and is blown out from the first air guide area, the second air guide area and the third air guide area. The airflow passing through the first air guide area is accelerated, which increases the airflow suction volume. The airflow passing through the second air guide area is diffused and blown out from one lateral side of the first air guide plate 110, which increases the diffusion angle of the first air outlet on the corresponding side. The airflow passing through the third air guide area is diffused and blown out from the other lateral side of the first air guide plate 110, which increases the diffusion angle of the first air outlet on the corresponding side. The diffused airflow passing through the second and third air guide areas increases the contact area between the airflow and the air, thereby increasing the airflow suction volume. Since the suction volume of the airflow and the indoor space airflow increases, the momentum and cooling capacity of the airflow are quickly transferred to the indoor space airflow, so the temperature adjustment speed is faster, and the blowing speed outside the air outlet is reduced faster, achieving the effect of the cold wind not blowing on people.

[0062] In some embodiments, the first wind guide area is located in the middle of the first wind guide plate, and the second wind guide area and the third wind guide area are located on both sides of the first wind guide area. The direction of the airflow is shown in Figure 5, which shows the mainstream direction of the airflow passing through the wind guide plate according to an embodiment of the present invention, wherein the first color area 205 represents the first airflow direction, the second color area 209 represents the second airflow direction, and the third color area 206 represents the third airflow direction. As can be seen from Figure 5, the airflow passing through the second wind guide area and the third wind guide area is blown out along the first airflow direction and the second airflow direction respectively, and the airflow passing through the first wind guide area is blown out along the third airflow direction, and the speed increases. In other words, the airflow on both sides of the air outlet diffuses and blows out to both sides, and the airflow in the middle is blown out to the front side, and the speed increases.

[0063] Furthermore, in some embodiments of the present invention, the projection of the guide structure on a plane perpendicular to the length direction of the first air guide plate is the projection of the guide structure. Along the direction of airflow, the ratio of the width of the guide structure projection to the width d of the first air guide plate is greater than 1 / 2 and less than 1. The ratio of the height of the guide structure projection to the width d of the first air guide plate is greater than 1 / 2 and less than 1. The above-mentioned arrangement makes the guide structure "large" enough. When the first air guide plate opens the air outlet, it can ensure that most of the airflow passes through the guide structure and has a significant guide effect.

[0064] In some embodiments of the present invention, as shown in FIG3 , the first air guide area is located between the second and third air guide areas. The plurality of air guide structures 120 include at least one first air guide structure 123 for forming the first air guide area. The at least one first air guide structure 123 forms one or more air guide channels extending along the airflow direction. The narrowest point of the air guide channel 124 is located downstream of the inlet of the air guide channel 124.

[0065] The second and third air guide areas are located at either end of the first air guide area, accelerating the airflow exiting the center of the first air guide plate and diffusing the airflow exiting the ends of the first air guide plate toward both ends. The fact that the narrowest point is not at the inlet accelerates the airflow as it enters the inlet of guide channel 124 and passes through the narrowest point. As shown in Figure 3, the inlet width of guide channel 124 is set to n1, and the width at the narrowest point is set to n2. The relationship between the two is 0.4n1≤n2≤0.7n1.

[0066] In some embodiments of the present invention, as shown in FIG3 , each first guide structure 123 includes a first guide vane 1232 and a second guide vane 1231, with a guide channel formed between the two guide vanes. The first guide vane 1232 arches toward the second guide vane 1231, and the second guide vane 1231 arches toward the first guide vane 1232. There are multiple first guide structures 123, and the multiple first guide vanes 1232 and the multiple second guide vanes 1231 are alternately arranged along the length of the first air guide plate. In two adjacent guide structures, the ends of the second guide vane 1231 of one first guide structure 123 are connected to the ends of the first guide vane 1232 of the other first guide structure 123. In other words, the first guide structures 123 are distributed sequentially along the length of the first air guide plate, starting from one end: the first guide vane 1232 is the first, the second guide vane 1231 is the second, the third guide vane 1232 is the first, and the fourth guide vane 1231 is the second. A flow guide channel is formed between the first guide plate 1232 in the first position and the second guide plate 1231 in the second position. The second guide plate 1231 in the second position is connected to both ends of the first guide plate 1232 in the third position. Another flow guide channel is formed between the first guide plate 1232 in the third position and the second guide plate 1231 in the fourth position.

[0067] In some embodiments of the present invention, the inlet 125 of the diversion channel 124 is larger than or equal to the outlet 126 of the diversion channel 124, and the narrowest point of the diversion channel is located between the inlet and outlet of the diversion channel. The width of the outlet 126 of the diversion channel 124 is n3, and the width of the inlet 125 of the diversion channel 124 is n1. The relationship between the width of the inlet 125 of the diversion channel 124 and the width of the outlet 126 of the diversion channel 124 is n3≤n1.

[0068] In some embodiments of the present invention, the plurality of air guide structures 120 further include a plurality of second air guide structures 121 for forming a second air guide area, and a plurality of third air guide structures 122 for forming a third air guide area. Each second air guide structure and each third air guide structure are sheet-shaped. Each second air guide structure 121 and each third air guide structure 122 extend along the airflow direction and gradually deflect toward both ends of the length direction of the first air guide plate 110.

[0069] By extending the plurality of second guide structures 121 along the flow direction of the supply air flow and tilting toward one end, and extending the plurality of third guide structures 122 along the flow direction of the supply air flow and tilting toward the other end, the air outlet of the air conditioner can form a fan-shaped wide-angle air supply effect, making the air supply angle larger and the airflow distribution more uniform.

[0070] In some embodiments of the present invention, as shown in FIG3 , along the airflow direction, the angle between the tangent line at the end of the second air guide structure 121 and the width direction of the first air guide plate 110 is a first air guide angle, denoted by α. The angle between the tangent line at the end of the third air guide structure 122 and the width direction of the first air guide plate 110 is a second air guide angle, denoted by β. The further away from the longitudinal center of the first air guide plate 110, the larger the first air guide angle α of the second air guide structure 121. The further away from the longitudinal center of the first air guide plate 110, the larger the second air guide angle β of the third air guide structure 122.

[0071] The above structure increases the velocity of the airflow when it is blown out between two adjacent second air guide structures 121 or third air guide structures 122. As the first air guide angle α increases as the distance from one end of the first air guide plate 110 increases, the distance between the front sections of adjacent second air guide structures 121 gradually decreases along the flow direction of the airflow, thereby accelerating the airflow out of adjacent second air guide structures 121. As the second air guide angle β increases as the distance from the other end of the first air guide plate 110 increases, the distance between the front sections of adjacent third air guide structures 122 gradually decreases along the flow direction of the airflow, thereby accelerating the airflow out of adjacent third air guide structures 122. As shown in Figure 3, taking the second guide structure as an example, along the direction of air flow, the distance between the starting ends of adjacent second guide structures 121 is m1, the minimum air outlet gap is m2, and the minimum gap between the two second guide structures 121 is m3. 0.5m1≤m2≤0.8m1, 0≤m3≤0.2m2. This setting ensures a greater suction effect while ensuring better wind dispersion.

[0072] In some embodiments of the present invention, the second guide structure 121, the third guide structure 122, and the first guide structure 123 are arranged at substantially the same length along the length direction of the first air guide plate 110, so that approximately one-third of the airflow is accelerated, and the remaining two-thirds of the airflow is evenly diffused and blown out along both sides of the air outlet. It should be noted that an airflow channel with a small inlet and a large outlet is formed between the first guide structure 123 closest to the second guide structure 121 and the adjacent second guide structure 121 in the first guide structure 123, and an airflow channel with a small inlet and a large outlet is also formed between the first guide structure 123 closest to the third guide structure 122 in the first guide structure 123 and the adjacent third guide structure 122.

[0073] In some embodiments of the present invention, the number of the second guide structures 121 and the number of the third guide structures 122 are the same, and the second guide structures 121 and the third guide structures 122 are symmetrically arranged about an auxiliary plane extending in the front-to-back direction and arranged vertically.

[0074] In some embodiments of the present invention, the first flow guiding structure 123 on one side of the auxiliary plane is symmetrically arranged with the first flow guiding structure 123 on the other side of the auxiliary plane.

[0075] In some embodiments of the present invention, the projections of each of the flow guiding structures 120 are the same.

[0076] In some embodiments of the present invention, the projected edge of the air guide structure includes a first oblique straight section 127, a second oblique straight section 128, and a first vertical section 129. One end A of the first oblique straight section 127 is connected to the first air guide plate 110, and the first oblique straight section 127 is tilted backward along the airflow direction. One end B of the second oblique straight section 128 is connected to the other end of the first oblique straight section 127, and the second oblique straight section 128 is tilted backward along the airflow direction, with the other end C of the second oblique straight section 128 being higher than the height of one end B of the second oblique straight section 128. One end D of the first vertical section 129 is connected to the first air guide plate 110, and the first vertical section 129 is located behind the second oblique straight section 128 along the airflow direction, and the other end of the first vertical section 129 is connected to the other end C of the second oblique straight section 128. Points A, B, and C are all within a circular area with point O of the rotation axis 150 as the center and radius d as the circle. d is the width of the first air guide plate 110, and d is less than the minimum distance from the rotation axis 150 to the air outlet surface 140. When the first air guide plate is in a horizontal state, the first vertical section 129 is parallel to the first air outlet to ensure that the airflow can smoothly reach the first air outlet after passing through the first vertical section 129, avoiding the loss of air volume caused by multiple collisions between the airflow and the first air guide plate. In order to ensure the best diversion effect, 45mm≤d≤65mm is set, preferably d=53mm. The height of the first oblique straight section 127 perpendicular to the first air guide plate 110 is d2, and 20mm≤d2≤40mm is set, preferably, d2=30mm. The height of the first vertical section 129 is d1, and 50mm≤d1≤70mm is set, preferably, d1=55mm. The width of the diversion structure projection is d3, and 35mm≤d3≤55mm is set, preferably, d3=45mm. The angle between the second oblique straight section and the horizontal plane is θ1, which is set to 18°≤θ1≤38°. Preferably, θ1=28°. The above setting can maximize the area of ​​polygon ABCD, so that the guide structure 120 has a better guide effect and ensures that the airflow passes through the guide structure as much as possible during cooling.

[0077] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. An air conditioner indoor unit, comprising: a housing, wherein a first air outlet is formed on the housing, the first air outlet extends in a transverse direction, and the first air outlet has an edge extending in the transverse direction; an air duct, the air duct being arranged in the housing and comprising an air outlet surface connected to the edge; a first air guide plate, the first air guide plate being disposed at the first air outlet and extending along the length direction of the first air outlet; a side surface of the first air guide plate being an air guide surface for guiding airflow to flow out from between the air outlet surface and the air guide surface; A plurality of guide structures are provided on the wind guide surface of the first wind guide plate and are arranged in sequence along the length direction of the first wind guide plate; and When the first air guide plate guides air, the distance between each of the air guide structures and the edge or the air outlet surface is less than 1 / 2 of the distance between the air guide surface and the edge or the air outlet surface.

2. The air conditioner indoor unit according to claim 1, wherein: The first air guide plate is rotatably arranged at the first air outlet, and the lower side surface of the first air guide plate is the air guide surface; The edge is the lower edge of the first air outlet.

3. The air conditioner indoor unit according to claim 1, wherein: The housing is further provided with a second air outlet, wherein the front edge of the second air outlet is arranged at the rear side and the lower side of the lower edge of the first air outlet; The housing further includes a partition portion disposed between the first air outlet and the second air outlet, the air outlet surface being an inner surface of the partition portion; and a rear edge of the air outlet surface being lower than a lower edge of the first air outlet.

4. The air conditioner indoor unit according to claim 3, wherein: The first air guide plate is rotatably arranged around its rear edge at the upper edge of the first air outlet; or, The air duct has an upper air outlet wall, the front edge of the upper air outlet wall is spaced apart from the upper edge of the first air outlet, and the first air guide plate is rotatably arranged around its rear edge at the front edge of the upper air outlet wall.

5. The air conditioner indoor unit according to claim 4, wherein: The front edge of the upper air outlet wall is located below and behind the upper edge of the first air outlet; The front edge of the first air guide plate can be rotated to a position overlapping with the upper edge of the first air outlet.

6. The air conditioner indoor unit according to claim 3, further comprising a second air guide plate; the second air guide plate is rotatably disposed at the second air outlet to open and close the second air outlet; When the second air outlet is closed, the upper surface of the second air guide plate is connected to the air outlet surface.

7. The air conditioner indoor unit according to claim 6, wherein: The second air guide plate includes a straight section and an upturned section extending forward and upward from the front end of the straight section; When the second air outlet is closed, the upper surface of the upwardly curved section is connected to the air outlet surface.

8. The air conditioner indoor unit according to claim 7, wherein: The air outlet surface is a first arched arc surface; The inner surface of the upward-curved section is a concave second arc surface; The first arc surface is tangent to the second arc surface.

9. The air conditioner indoor unit according to claim 1, wherein: The multiple guide structures are configured to form a first guide area, a second guide area and a third guide area on the corresponding sides of the first guide plate. The first guide area is used to accelerate the flow of the corresponding airflow, the second guide area is used to make the corresponding airflow flow toward one lateral side of the first guide plate, and the third guide area is used to make the corresponding airflow flow toward the other lateral side of the first guide plate.

10. The air conditioner indoor unit according to claim 9, wherein: The first air guiding area is located between the second air guiding area and the third air guiding area; The plurality of guide structures include at least one first guide structure for forming the first air guide area; at least one first guide structure forms one or more guide channels extending along the airflow direction; Each of the first guide structures includes a first guide plate and a second guide plate, wherein the first guide plate is arched toward the second guide plate, and the second guide plate is arched toward the first guide plate, and the guide channel is formed between the first guide plate and the second guide plate; There are multiple first guide structures, and the multiple first guide blades and the multiple second guide blades are alternately arranged in sequence along the length direction of the first air guide plate; In two adjacent first flow guide structures, two ends of the second flow guide plate of one first flow guide structure are connected to two ends of the first flow guide plate of the other first flow guide structure; The inlet of the guide channel is larger than the outlet of the guide channel, and the narrowest position of the guide channel is located between the inlet of the guide channel and the outlet of the guide channel.

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